Clamping type bolt pre-tightening machine

Abstract

The clamping type bolt pre-tightening machine comprises a tightening machine body and a clamping device, the tightening machine body comprises a support and a transmission shaft assembly, one end of the transmission shaft assembly is installed on one side of the support, and the other end of the transmission shaft assembly is provided with a first transmission hole. The clamping device comprises a mounting plate, a vertical driving assembly and a clamping assembly, the mounting plate is located above the transmission shaft assembly and is parallel to the transmission shaft assembly, the vertical driving assembly is mounted at one end of the mounting plate, and the clamping assembly is arranged at the driving end of the vertical driving assembly and is provided with a U-shaped clamping opening right opposite to the first transmission hole. The clamping device is arranged on the tightening machine body, the clamping assembly of the clamping device enables the CKD bolt to abut against the transmission hole of the transmission shaft assembly, when the CKD bolt needs to be replaced, under driving of the vertical driving assembly, the clamping assembly is reset upwards, a U-shaped clamping opening is separated from the CKD bolt, the CKD bolt can be taken down from the transmission hole, the CKD bolt is replaced, the downtime of equipment is shortened, and the production efficiency is improved. And the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt pre-tightening device technical field, specifically, relate to a clamping type bolt pre-tightening machine. BACKGROUND

[0002] CKD bolt is a bolt specially used for automobile connecting rod screw hole detection, referring to Figures 1-2 , Figure 1 The pre-tightening device structure schematic diagram of prior art CKD bolt, Figure 2 The rotating shaft mechanism schematic diagram of prior art CKD bolt pre-tightening device, when using, CKD bolt is installed in the rotating shaft 01 of pre-tightening device 0, and CKD bolt is screwed into the screw hole of automobile connecting rod by the rotation of the rotating shaft 01 of pre-tightening device 0 driven by motor, and whether the screw hole of automobile connecting rod is qualified is obtained by the feedback data of the sensor built in motor.

[0003] And in prior art, the threaded hole is usually drilled at the tail end of CKD bolt 00, then CKD bolt 00 is inserted into one end of transmission square head assembly 02, then M4 bolt is connected to the threaded hole of CKD bolt 00 by penetrating transmission square head assembly 02 from the other end of transmission square head assembly 02, so that CKD bolt 00 is fixed on transmission square head assembly 02, finally transmission square head assembly 02 is inserted into the transmission hole of rotating shaft 02, and pin 03 is punched to connect transmission square head assembly 02 and rotating shaft 01.

[0004] However, when CKD bolt needs to be replaced due to damage, pin 03 connecting transmission square head assembly 02 and rotating shaft 01 is usually removed first, and M4 bolt is removed, then new CKD bolt is punched and replaced on transmission square head assembly, which is not only complicated, but also low in efficiency, resulting in long downtime of production equipment, which is not conducive to production. INVENTION CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a clamping type bolt pre-tightening machine, which comprises:

[0006] The pre-tightening machine body comprises a support and a transmission shaft assembly, one end of the transmission shaft assembly is installed on one side of the support, the other end of the transmission shaft assembly has a first transmission hole, the other side of the support has a motor mounting position, the motor mounting position is used for mounting a motor, and the motor is in transmission connection with the transmission shaft assembly.

[0007] The clamping device comprises a mounting plate, a vertical driving assembly and a clamping assembly, the mounting plate is also fixed to one side of the support above and parallel to the transmission shaft assembly, the vertical driving assembly is installed at the end of the mounting plate away from the support, the driving end of the vertical driving assembly is vertically downward, one end of the clamping assembly is installed at the driving end of the vertical driving assembly, the other end of the clamping assembly is vertically downward, and the U-shaped clamping opening is located at the end of the clamping assembly away from the vertical driving assembly.

[0008] According to an embodiment of the utility model, the clamping assembly comprises a clamping head and two elastic members, the U-shaped clamping opening is located at the clamping head, and the two elastic members are installed on the side of the clamping head facing the transmission shaft assembly and are separately arranged on the two sides of the U-shaped clamping opening.

[0009] According to an embodiment of the utility model, the clamping device further comprises a supporting assembly, the supporting assembly comprises a bearing seat and a bearing, the bearing is sleeved outside the transmission shaft assembly, and the bearing seat is sleeved outside the bearing and is fixed to the mounting plate.

[0010] According to an embodiment of the utility model, the clamping device further comprises a transverse sliding assembly, the transverse sliding assembly is arranged at the end of the mounting plate away from the support and extends away from the support, the vertical driving assembly is fixed to the end of the transverse sliding assembly away from the mounting plate, and the bearing seat is located between the vertical driving assembly and the mounting plate and is fixed to the transverse sliding assembly.

[0011] According to an embodiment of the utility model, the elastic member is an arched spring sheet.

[0012] According to an embodiment of the utility model, the vertical driving assembly comprises a linear driving member, the clamping assembly is installed at the driving end of the linear driving member, and the linear driving member is a gas cylinder.

[0013] According to an embodiment of the utility model, the transverse sliding assembly comprises a sliding block, a sliding rail and a fixed plate, the sliding block is installed at one end of the mounting plate, the sliding rail is slidably connected to the sliding block, the fixed plate is fixed to one end of the sliding rail, and the linear driving member and the bearing seat are both fixed to the fixed plate.

[0014] The utility model beneficial effect lies in: through setting up the clamping device on the tightening machine body, make the clamping assembly of clamping device abuts at the transmission hole of transmission shaft subassembly, when needing to replace CKD bolt, under the drive of vertical drive subassembly, clamping assembly resets upward, U-shaped clamping mouth is separated from CKD bolt, at this moment, CKD bolt loses the limiting of clamping assembly, can take down it from transmission hole and replace new CKD bolt, greatly improve the efficiency of CKD bolt replacement, reduce equipment downtime, further improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:

[0016] Figure 1 It is a schematic diagram of the pre-tightening device of CKD bolt in the prior art;

[0017] Figure 2 It is a schematic diagram of the rotating shaft mechanism of the pre-tightening device of CKD bolt in the prior art;

[0018] Figure 3 It is a schematic diagram of the pre-tightening device of clamping bolt in the embodiment;

[0019] Figure 4 It is Figure 3 A enlarged view of part A in the embodiment;

[0020] Figure 5 It is a schematic diagram of the vertical drive subassembly and clamping assembly in the embodiment. DETAILED DESCRIPTION

[0021] In the following, several embodiments of the present application will be disclosed with drawings. For the purpose of clear illustration, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present application. That is, in some embodiments of the present application, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0022] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the present application. It is only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0023] Referring to Figures 3-5 , Figure 3 is a structural schematic view of the clamping type bolt pre-tightening machine in the embodiment, Figure 4 is Figure 3 an enlarged view of A part in Figure 5The structure diagram of the vertical driving assembly and the clamping assembly in the embodiment. The clamping bolt pre-tightening machine in the embodiment comprises a tightening machine body 1 and a clamping device 2. Specifically, the tightening machine body 1 comprises a support 11 and a transmission shaft assembly 12. One end of the transmission shaft assembly 12 is installed on one side of the support 11, and the other end of the transmission shaft assembly 12 is provided with a first transmission hole 121. The other side of the support 11 is provided with a motor mounting position 111 for installing a motor (not shown in the figure). The motor is in transmission connection with the transmission shaft assembly 12. The clamping device 2 comprises a mounting plate 21, a vertical driving assembly 22 and a clamping assembly 23. The mounting plate 21 is also fixed to one side of the support 11, located above the transmission shaft assembly 12 and parallel to the transmission shaft assembly 12. The vertical driving assembly 22 is installed on one end of the mounting plate 21 away from the support 11, and the driving end of the vertical driving assembly 22 is vertically downward. One end of the clamping assembly 23 is installed on the driving end of the vertical driving assembly 22, and the other end of the clamping assembly 23 extends vertically downward. The end of the clamping assembly 23 away from the vertical driving assembly 22 is provided with a U-shaped clamping opening 2311. The first transmission hole 121 is opposite to the U-shaped clamping opening 2311. When working, one end of the CKD bolt 01 is inserted into the first transmission hole 121. At this time, under the driving of the vertical driving assembly 22, the clamping assembly 23 moves towards the CKD bolt 01, so that the CKD bolt 01 enters the U-shaped clamping opening 2311. At this time, the clamping assembly 23 limits the end of the CKD bolt 01. Then, the motor (not shown in the figure) can be started to drive the transmission shaft assembly 12 to drive the CKD bolt 01 to work. It can be understood that when the CKD bolt 01 is damaged, under the driving of the vertical driving assembly 22, the clamping assembly 23 is reset upward, and the U-shaped clamping opening 2311 is separated from the CKD bolt 01. At this time, the CKD bolt 01 loses the limitation of the clamping assembly 23, and can be taken off from the transmission hole 121 and replaced with a new CKD bolt. The efficiency of replacing the CKD bolt 01 is greatly improved, the equipment downtime is reduced, and the production efficiency is improved.

[0024] Specifically, the vertical driving assembly 22 comprises a linear driving member 221, and the clamping assembly 231 is installed on the driving end of the linear driving member 221. In the embodiment, the linear driving member 221 is a gas cylinder.

[0025] Referring to the drawings. Further, the clamping assembly 23 comprises a clamping head 231 and two elastic members 232, a U-shaped clamping opening 2311 is located on the clamping head 231, and the two elastic members 232 are installed on the side of the clamping head 231 facing the transmission shaft assembly 12 and are separately arranged on both sides of the U-shaped clamping opening 2311. In this example, the elastic member 232 adopts an arched spring sheet. It can be understood that when the clamping assembly 23 moves towards the CKD bolt 01 and the CKD bolt 01 enters the U-shaped clamping opening 2311, the elastic member 232 abuts against the end cap of the CKD bolt 01, thereby abutting the CKD bolt 01 against the transmission hole 121 of the transmission shaft assembly 12, preventing the CKD bolt 01 from shaking and improving the stability of the work.

[0026] Referring to the drawings. The clamping device 2 further comprises a supporting assembly 24, the supporting assembly 24 comprises a bearing seat 241 and a bearing 242, the bearing 242 is sleeved outside the transmission shaft assembly 12, the bearing seat 241 is sleeved outside the bearing 242 and is fixed to the mounting plate 21. In specific implementation, the bearing 242 and the bearing seat 241 are fixed by a circlip. In work, the supporting assembly 24 plays a role of radial limiting for the transmission shaft assembly 01, preventing the transmission shaft assembly 12 from shaking and further improving the stability of the work.

[0027] Referring to the drawings. Preferably, the clamping device 2 further comprises a transverse sliding assembly 25, the transverse sliding assembly 25 is arranged at the end of the mounting plate 21 away from the support 11 and extends away from the support 1, the vertical driving assembly 22 is fixed to the end of the transverse sliding assembly 25 away from the mounting plate 21, and the bearing seat 241 is located between the vertical driving assembly 22 and the mounting plate 21 and is fixed to the transverse sliding assembly 25.

[0028] Specifically, the transverse sliding assembly 25 comprises a sliding block 251, a sliding rail 252 and a fixed plate 253, the sliding block 251 is installed at one end of the mounting plate 21, the sliding rail 252 is slidingly connected to the sliding block 251, the fixed plate 253 is fixed to one end of the sliding rail 252, and the linear driving member 221 and the bearing seat 241 are both fixed to the fixed plate 253. In use, the fixed plate 253 can be pulled to make the sliding rail 252 slide, so that the fixed plate 253 moves away from the support 11, at this time, the bearing seat 241 moves with the fixed plate 253, so that the bearing 241 is separated from the transmission shaft assembly 12, thereby facilitating the replacement and maintenance of the transmission shaft assembly 12 and improving the convenience of product use.

[0029] To sum up, in the example, by setting the clamping device on the body of the tightening machine, the clamping assembly of the clamping device abuts the CKD bolt against the transmission hole of the transmission shaft assembly, when the CKD bolt needs to be replaced, under the driving of the vertical driving assembly, the clamping assembly resets upward, the U-shaped clamping opening is separated from the CKD bolt, at this time, the CKD bolt loses the limiting of the clamping assembly, and the CKD bolt can be taken off from the transmission hole and replaced with a new CKD bolt, so that the efficiency of replacing the CKD bolt is greatly improved, the equipment downtime is reduced, and the production efficiency is improved.

[0030] The above merely describes the embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A clamp-type bolt pre-tightening machine characterized by comprising: include: The tightening machine body includes a bracket and a drive shaft assembly. One end of the drive shaft assembly is mounted on one side of the bracket, and the other end has a first drive hole. The other side of the bracket has a motor mounting position for mounting a motor. The motor is connected to the drive shaft assembly in a drive connection. The clamping device includes a mounting plate, a vertical drive assembly, and a clamping assembly. The mounting plate is also fixed to one side of the bracket, located above and parallel to the drive shaft assembly. The vertical drive assembly is mounted on the end of the mounting plate away from the bracket, with its drive end pointing vertically downward. One end of the clamping assembly is mounted on the drive end of the vertical drive assembly, and the other end extends vertically downward. The end of the clamping assembly away from the vertical drive assembly has a U-shaped clamping opening, and the first drive hole is directly opposite the U-shaped clamping opening.

2. The clamp-type bolt pre-tightening machine according to claim 1, characterized by, The clamping assembly includes a clamping head and two elastic members. The U-shaped clamping opening is located on the clamping head, and the two elastic members are installed on the side of the clamping head facing the drive shaft assembly and are respectively located on both sides of the U-shaped clamping opening.

3. The clamp-type bolt pre-tightening machine according to claim 2, characterized by, The clamping device further includes a support assembly, which includes a bearing housing and a bearing. The bearing is sleeved outside the drive shaft assembly, and the bearing housing is sleeved outside the bearing and fixed to the mounting plate.

4. The clamp-type bolt pre-tightening machine according to claim 3, characterized by, The clamping device further includes a lateral sliding assembly, which is located at the end of the mounting plate away from the bracket and extends away from the bracket. The vertical drive assembly is fixed at the end of the lateral sliding assembly away from the mounting plate. The bearing seat is located between the vertical drive assembly and the mounting plate and is fixed to the lateral sliding assembly.

5. The clamp-type bolt pre-tightening machine according to claim 4, characterized by, The elastic element is an arched spring sheet.

6. The clamp-type bolt pre-tightener according to claim 4, characterized by The vertical drive assembly includes a linear drive component, and the clamp is mounted on the drive end of the linear drive component, wherein the linear drive component is a cylinder.

7. The clamp-type bolt pre-tightener according to claim 6, characterized in that The lateral sliding assembly includes a slider, a slide rail, and a fixing plate. The slider is mounted on one end of the mounting plate, the slide rail is slidably connected to the slider, the fixing plate is fixed to one end of the slide rail, and the linear drive and the bearing seat are both fixed to the fixing plate.

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