Transmission shaft nut installation tool structure

Abstract

The utility model discloses a transmission shaft nut installation tool structure, which belongs to the technical field of automobile part installation tools, and comprises a tool sheath, a chisel and a pneumatic air hammer, a circular truncated cone is welded on the tool sheath, and an installation hole is arranged on the circular truncated cone; the chisel is mounted in the mounting hole and sleeved with an elastic piece, one end of the elastic piece abuts against the chisel, and the other end of the elastic piece abuts against the circular truncated cone; the tail part of the chisel is sleeved in the pneumatic air hammer and is connected with the pneumatic air hammer, and when the chisel is impacted by the pneumatic air hammer, the nut on the hub disc can be extruded to form a wrinkle shape. The problems that man-machine engineering is poor and hands are knocked are solved, time waste caused by waiting of left and right stations and redundant actions is eliminated, quality assembly consistency is improved, repeated knocking correction is not needed, and one-time forming is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts installation tools, in particular to a transmission shaft nut installation tool structure. Background Art

[0002] When assembling the front drive shaft of a fuel vehicle connected to the front suspension nut in the chassis section of Baojun assembly line A, it is necessary to use a chisel and a hammer to knock the edges of the left and right nuts respectively after the equipment applies torque, so that the edges are deformed into the drive shaft groove. Each nut needs to be knocked at two positions to prevent loosening. The existing process forms wrinkles, and the process requirements for wrinkles are: there is no gap between the edge of the wrinkle and the two sides of the groove, and the gap with the bottom of the groove is less than 1mm; the distance between the bottom of the wrinkle and the nut is less than 2mm; during the knocking process, employees at the left and right stations need to cooperate to rotate the knocking position of the drive shaft, use the chisel and hammer to knock for 8 seconds, and wait for 5 seconds before knocking at the opposite station. When using a hammer to knock the chisel, it is easy to hit the hand, which has poor ergonomics, and this knocking method cannot be formed in one time, and it needs to be knocked repeatedly for correction, which affects the operation rhythm, and cannot 100% guarantee the consistency of process assembly. The left and right stations cooperate in operation, and there is a problem of waiting waste, which affects efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a transmission shaft nut installation tool structure, which aims to quickly and accurately perform wrinkle forming on the nut on the hub disc, improve the quality assembly consistency, and form it in one time without repeated knocking and correction.

[0004] To achieve the above-mentioned purpose, the utility model proposes a transmission shaft nut installation tool structure, comprising a tool sheath, a round table welded on the tool sheath, and a mounting hole is opened on the round table;

[0005] A chisel, the chisel is installed in the mounting hole and is sleeved with an elastic member, one end of the elastic member abuts against the chisel, and the other end abuts against the round table;

[0006] A pneumatic air hammer, wherein the tail of the chisel is inserted into the pneumatic air hammer and connected thereto, and when the chisel is impacted by the pneumatic air hammer, the nut on the hub disc can be squeezed to form a wrinkle shape. Furthermore, the pneumatic air hammer squeezes and impacts the chisel to wrinkle the nut on the hub disc, and after the wrinkle is completed, the chisel automatically returns to its original fixed position under the elastic force of the elastic member.

[0007] Optionally, the head of the chisel is arranged in a Y shape, so as to extrude and wrinkle both sides of the nut at the same time.

[0008] Optionally, a notch is formed on the truncated platform, the notch is connected to the mounting hole, and the chisel is inserted into the mounting hole through the notch. Furthermore, the notch makes it easier to disassemble and assemble the chisel.

[0009] Optionally, a limit block is provided at the notch, and the limit block is detachably connected to the truncated table.

[0010] Optionally, a fixing hole is formed on the truncated table, a connecting piece is provided in the fixing hole, and the connecting piece connects the truncated table and the limiting block together.

[0011] Optionally, the chisel is provided with a limit platform, one end of the elastic member abuts against the limit platform, and the other end abuts against the round platform. Further, under the elastic force of the elastic member, the chisel can automatically return to the original fixed position after completing the work.

[0012] Optionally, a magnet is provided at the bottom of the tool sheath. Further, the magnetic force of the magnet facilitates the installation and positioning of the tool sheath, and the tool sheath is fixed in the center by magnetic adsorption.

[0013] Optionally, the connecting piece is an M6X20 bolt.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The transmission shaft nut installation tool structure of the utility model technical solution is provided with a tool sheath, a chisel and a pneumatic air hammer. A round table is welded on the tool sheath, and a mounting hole is opened on the round table. The chisel is installed in the mounting hole and is sleeved with an elastic member, one end of the elastic member abuts against the chisel, and the other end abuts against the round table. The tail of the chisel is inserted into the pneumatic air hammer and connected to it. When the chisel is impacted by the pneumatic air hammer, it can squeeze the nut on the hub disc to form a wrinkled shape. It solves the problems of poor ergonomics and hands being knocked, eliminates the time waste of waiting at the left and right workstations and redundant actions, improves the consistency of quality assembly, and does not require repeated knocking and correction, and is formed in one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a transmission shaft nut installation tool structure of the utility model;

[0018] Figure 2 It is a structural exploded schematic diagram of an embodiment of a transmission shaft nut installation tool structure of the utility model;

[0019] Figure 3 for Figure 1 Bottom view of the tool sheath.

[0020] Description of Figure Numbers:

[0021]

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] The utility model provides a transmission shaft nut installation tool structure 100.

[0027] See also Figure 1-3In one embodiment of the utility model, the transmission shaft nut installation tool structure 100 includes a tool sheath 10, a chisel 30 and a pneumatic air hammer 50. A round table 20 is welded on the tool sheath 10, and a mounting hole 21 is opened on the round table 20. The chisel 30 is installed in the mounting hole 21 and is sleeved with an elastic member 40. One end of the elastic member 40 abuts against the chisel 30, and the other end abuts against the round table 20. The tail of the chisel 30 is inserted into the pneumatic air hammer 50 and connected to it. When the chisel 30 is impacted by the pneumatic air hammer 50, it can squeeze the nut on the hub disc to form a wrinkled shape.

[0028] In this embodiment, the tool sheath 10 includes a support portion 12 and a positioning portion 11, the positioning portion 11 is in a hollow annular shape, the truncated cone 20 is welded on the support portion 12, and is spaced a certain distance from the positioning portion 11, so that the chisel 30 has a certain moving space. The head of the chisel 30 is set in a Y shape, which can squeeze and wrinkle both sides of the nut at the same time; the chisel 30 and the tool sheath 10 are both made of 45# steel material and processed and quenched.

[0029] A magnet 13 is provided at the bottom of the positioning portion 11. The tool sheath 10 is inserted into the front suspended wheel hub and fixed in the center by the magnetic force of the magnet 13, which makes it easier to position the tool sheath 10. The handle at the tail of the chisel 30 is inserted into the spring-free interior of the pneumatic hammer 50 to form a whole, which can achieve quick installation, connection and disassembly.

[0030] In one embodiment of the utility model, a notch 22 is provided on the truncated table 20, and the notch 22 is connected to the mounting hole 21. The chisel 30 is inserted into the mounting hole 21 through the notch 22. A limit block 60 is provided at the notch 22, and the limit block 60 is detachably connected to the truncated table 20.

[0031] In this embodiment, a fixing hole 23 is provided on the truncated table 20, and a connecting member 70 is provided in the fixing hole 23. The connecting member 70 connects the truncated table 20 with the stop block 60, wherein the connecting member 70 may be an M6X20 bolt, but is not limited thereto. The connecting member 70 connects the stop block 60 with the truncated table 20, plays the role of fixing the chisel 30 and ensuring that the half axis of the chisel 30 is coaxial with the center of the circle of the mounting hole 21. At the same time, the chisel 30 can be quickly installed and removed by disassembling the connecting member 70, which is convenient for operation and maintenance.

[0032] In an embodiment of the present invention, a limiting platform 31 is provided on the chisel 30 , and one end of the elastic member 40 abuts against the limiting platform 31 , and the other end abuts against the top of the round platform 20 .

[0033] In this embodiment, the elastic member 40 may be a spring, but is not limited thereto; the diameter of the limiting platform 31 is larger than the mounting hole 21, which can limit the travel of the chisel 30 and prevent the chisel 30 from being separated from the round platform 20 during movement. And under the elastic force of the elastic member 40, the chisel 30 can automatically return to its original position, playing a role of rapid reset.

[0034] Working principle: first, connect the pneumatic hammer 50 to the air source to meet the use conditions of the pneumatic hammer 50, put the tool sheath 10 on the front suspended wheel hub disk, and fix it in the center by the magnetic force of the magnet 13, then hold the pneumatic hammer 50 with both hands, and press the chisel 30 to be flush with the nut, and pull the trigger of the pneumatic hammer 50 with the right hand finger. The impact of the pneumatic hammer 50 lasts for 3-4 seconds, and the wrinkle shape can be quickly formed to meet the assembly quality and efficiency requirements. After completing the work, when the trigger is stopped, the elastic force of the elastic member 40 separates the chisel 30 and the nut, and the chisel 30 returns to the original fixed position, which is convenient for the next operation cycle. Finally, pull the tool sheath 10 from the wheel hub disk to operate the next vehicle.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transmission shaft nut installation tool structure, characterized in that: include: A tool sheath, wherein a round platform is welded on the tool sheath, and a mounting hole is opened on the round platform; A chisel, the chisel is installed in the mounting hole and is sleeved with an elastic member, one end of the elastic member abuts against the chisel, and the other end abuts against the round table; A pneumatic hammer, wherein the tail of the chisel is inserted into the pneumatic hammer and connected thereto, and when the chisel is impacted by the pneumatic hammer, the nut on the hub disc can be squeezed to form a wrinkled shape.

2. The transmission shaft nut installation tool structure according to claim 1, characterized in that: The head of the chisel is arranged in a Y shape, so that wrinkles can be squeezed on both sides of the nut at the same time.

3. The transmission shaft nut installation tool structure according to claim 1, characterized in that: A notch is provided on the circular platform, the notch is communicated with the mounting hole, and the chisel is inserted into the mounting hole through the notch.

4. The transmission shaft nut installation tool structure according to claim 3, characterized in that: A limiting block is provided at the notch, and the limiting block is detachably connected to the round table.

5. The transmission shaft nut installation tool structure according to claim 4, characterized in that: A fixing hole is provided on the truncated platform, a connecting piece is provided in the fixing hole, and the connecting piece connects the truncated platform and the limiting block together.

6. The transmission shaft nut installation tool structure according to claim 1, characterized in that: The chisel is provided with a limiting platform, one end of the elastic member abuts against the limiting platform, and the other end abuts against the round platform.

7. The transmission shaft nut installation tool structure according to claim 1, characterized in that: A magnet is disposed at the bottom of the tool sheath.

8. The transmission shaft nut installation tool structure according to claim 5, characterized in that: The connecting piece is an M6X20 bolt.

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