Technical Field
The utility model relates to a bolt tightening device, in particular to a kind of bolt tightening angle control device, which belongs to the engine cylinder assembly equipment technology field.
Background Art
In pilot production when processing diesel engine cylinder block, main bearing installation kong wagai, covers of the mounting bolts to tighten the requested for, wrenching the first to the fixed torque force after screwing down a fixed angle requirements.
In the prior art, in new product trial or small batch in the production process, without professional tighten the equipment, tighten the bolt angle control mode is to adopt the manual marking of the control method, the disadvantages of manual control is mainly composed of: (1) marking precision is low; (2) in the process of tightening the scale line of the person needs to judge whether alignment; (3) the angle control precision is subjective factor impact.
Content of the invention
Purpose of the utility model is to overcome the deficiencies mentioned above, so as to provide a bolt tightening angle control device, tighten the bolt can accurately realize the control of the angle, and does not need special bolt is tightened in the process of judging the angle.
In accordance with the utility model provides the technical scheme, a tighten the bolt angle control device comprises a mounting bottom plate and sleeve assembly, and is characterized in that: the bottom plate is provided with a plurality of fixing holes, each fixing bolt hole is provided with a fixing bolt, through the fixing bolt will be installation bottom plate is fixed on the machine body; on the mounting base plate is provided with a plurality of center hole, each of the circumference of the central hole is provided with an arc groove, in which the arc [...] circle concentric with the center hole, one end of the counterbore is provided with a circular arc direction;
The sleeve assembly comprises a rocker arm, the sleeve, the instruction sells, spring and cotter pin, the center of the rocker arm is provided with a mounting hole of the sleeve, the sleeve is provided with a mounting hole in the sleeve, the lower end of the sleeve extends into the in the center hole and can rotate freely; the front end of the rocker arm is provided with a pin hole, the upper part of the indicating pin passing through the pin hole and connected with the cotter pin, the cotter pin so that the indicating pin cannot drop from the pin holes; the lower part of the indicating pin spring is sleeved, and the lower end of the spring are respectively contact with the rocker arm and indicating pin of the locating block on, the lower end of the indicating pin extends into the circular arc groove.
Further, on the mounting base plate 1st and 2nd the locating element is connected to the locating element.
Further, cutting the edges of the piece is 1st, 2nd locating element is a cylindrical pin.
Further, indicating the depth of the counterbore is greater than the depth of the circular groove.
Further, the rocker arm is arranged on one side of the mounting hole is communicated with the sleeve open slot, the open groove connecting and locking bolt.
The utility model compared with the prior art has the following advantages:
The utility model is simple in structure, compact, reasonable, stable and reliable operation, convenient and simple to operate, can accurately realize the control of the angle of screwing the bolts, and does not need special bolt is tightened in the process of judging the angle.
Description of drawings
Figure 1 is a front view of the utility model.
Figure 2 is a top view of the utility model.
Figure 3 Figure 2 in A - A cutaway view.
Figure 4 is the front view of the sleeve assembly.
Figure 5 is a top view of the utility model the sleeve assembly.
The Figure mark note: 1 - the mounting base plate, 2 - 1st locating element, 3 - 2nd locating element, 4 - fixing bolt hole, 5 - center hole, 6 - arc groove, 7 - indicating counter bore, 8 - rocker arm, 9 - sleeve, 10 - locking bolt, 11 - the instruction sells, 12 - spring, 13 - the cotter pin, 14 - open slot, 15 - the positioning block.
Mode of execution
The lower the utility model relates to the implementation of the Figure and put further described in:
As shown in Figure 1-3, the utility model is mainly comprises a mounting bottom plate 1 and the sleeve assembly. The mounting base plate 1 is provided with a plurality of fixing bolt holes 4, each fixing bolt hole 4 is provided with a fixing bolt, the mounting plate through the fixing bolt 1 fixed on the body.
The mounting plate 1 is connected to the 1st locating element 2 and 2nd locating element 3, 1st locating element 2 and 2nd locating element 3 can realize the accurate positioning of the cyclone. The 1st locating element 2 for the cutting edge pin, 2nd locating element 3 is a cylindrical pin.
The mounting base plate 1 is provided with a plurality of center hole 5, each of the center hole 5 is arranged around an arc groove 6, arc groove 6 in the central hole of the [...] with 5 concentric circle. Arc groove 6 is provided with a direction one end of the counterbore 7, indicating counter bore 7 is larger than the depth of the circular groove 6 of the depth. Arc groove 6 of the stroke according to the required tightening the bolt stroke is set, so as to achieve the purpose of the control of the degree of tightening of a bolt.
As shown in Figure 4-5, sleeve assembly comprising a rocker arm 8, sleeve 9, the locking bolt 10, indicating pin 11, spring 12 and cotter pin 13.
The rocker arm 8 is provided with a center mounting hole of the sleeve, the sleeve is provided with a mounting hole in the sleeve 9, the sleeve 9 extends into the lower end of the center hole 5 in and can rotate freely. The rocker arm 8 is arranged on one side of the mounting hole is communicated with the opening of the sleeve 14, the open slot 14 is connected with the locking bolt 10, the locking bolt 10 can adjust the opening trough 14 of size, so that the sleeve in the mounting hole of the sleeve 9 the clamping.
The rocker arm 8 is provided with a pin hole at the front end, indicating pin 11 the upper part of the pin hole and connected with the cotter pin 13, the cotter pin 13 so that the indicating pin 11 cannot fall off from the pin holes. Indicating pin 11 is sleeved on the lower part of the spring 12, the spring 12 are respectively contact with the lower end of the rocker arm 8 and indicating pin 11 of the locating block on 15. Indicating pin 11 extends into the lower end of the arc groove 6 in.
The working principle of the utility model is: in the covers of the mounting bolts tighten the work, will be installed in the bottom of the cyclone connected by a bolt, the mounting base plate according to the demands on the corresponding mounting bolts provided with a center hole, the sleeve assembly is inserted in the screwing of a bolt to correspond to the hole in the center of the. The adjustment sleeve assembly, so that the indicating pin enters the arc groove and the spring compression. And then rotate the sleeve assembly, the realization of the tightening of the bolt. When the indicating pin enters and points out and counter bore 7 in, means that the bolt has been screwed in place. At this moment the sleeve assembly remove, to start the next bolt tightening work.
The utility model is simple in structure, compact, reasonable, stable and reliable operation, convenient and simple to operate, can accurately realize the control of the angle of screwing the bolts, and does not need special bolt is tightened in the process of judging the angle.
Bolt tightening angle controlling device
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contact@catarc.com.cn
