CN210704393U

CN210704393U - Automatic positioning device for middle shaft of EPS lock

Info

Publication number: CN210704393U
Application number: CN201921211010.4U
Authority: CN
Inventors: 骆正龙; 李健
Original assignee: Shanghai Baozhuan Automation Technology Co ltd
Current assignee: Shanghai Baozhuan Automation Technology Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-06-09
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses an automatic positioning device for an intermediate shaft of an EPS lock, which relates to the technical field of EPS systems and comprises a workbench, wherein a fixed seat and a rotating seat which are hinged with each other are arranged on the workbench, a profiling positioning block and a profiling bracket are arranged on the rotating seat, a clamping component is arranged between the rotating seat and the profiling positioning block, a limiting component is arranged between the rotating seat and the profiling bracket, a positioning component is arranged between the rotating seat and the fixed seat and comprises an angular positioning collision block and a turnover surface, the angular positioning collision block is provided with a positioning surface, the positioning surface and the table surface of the workbench are arranged at an included angle, the turnover surface and the table surface of the workbench are arranged in parallel in an initial state, the central axis of a screw is arranged in a crossing way with a vertical direction, when the rotating seat is rotated until the turnover surface contacts with the positioning surface of the angular positioning collision block, the central axis of the screw is arranged in parallel with the vertical direction, the operation difficulty of the locking screw of the operator is reduced, and the working efficiency is improved.

Description

Automatic positioning device for middle shaft of EPS lock

Technical Field

The utility model relates to a EPS system technical field, more specifically say, it relates to an EPS lock jackshaft automatic positioning device.

Background

An electric power steering system is a power steering system that directly relies on a motor to provide an assist torque, abbreviated as EPS, and mainly includes a vehicle speed sensor, a torque sensor, a controller, an intermediate shaft, a motor, a steering gear, and the like.

At present, in the assembly process of an automobile steering device, an EPS workpiece and an intermediate shaft are installed in a matched mode in a horizontal direction, as shown in fig. 1, the EPS workpiece 18 is clamped in an airplane frame 19 in advance, the intermediate shaft 17 is clamped by an air cylinder on the right side, a guide pin 23 is inserted into a positioning hole 24, two rotary clamping air cylinders on the left side compress the EPS workpiece 18, then a screw 20 of the intermediate shaft 17 is locked, and the installation of the intermediate shaft 17 and the EPS workpiece 18 is achieved. When the screw 20 is locked, the screw 20 is vertically locked downwards, it is necessary to ensure that the vertical direction is spacious and free of any interference in the process of locking the screw 20 by using the full-automatic screw locking machine, so that the power motor 21 and the circuit board 22 can only be distributed on two sides of the horizontal direction of the screw 20, the mounting positions of the power motor 21 and the circuit board 22 are greatly limited, when the positions of the power motor 21 and the circuit board 22 of the steering gear change to the upper side of the screw 20, the power motor 21 and the circuit board 22 shield the screw 20, and the gap above the screw 20 is small, the process of locking the screw 20 is affected, so that the EPS workpiece 18 and the intermediate shaft 17 are inconvenient to mount and lock in the production process, and the working efficiency is very slow, so that the improvement point exists.

SUMMERY OF THE UTILITY MODEL

To this problem in the in-service use, the utility model aims to provide an EPS lock jackshaft automatic positioning device rotates the seat and rotates for the fixing base for the space of the skew screw top of helping hand motor, circuit board makes things convenient for full-automatic lock screw machine to stretch into the space and locks the screw, reduces the operation degree of difficulty of operating personnel lock screw, improves work efficiency, and concrete scheme is as follows:

an EPS lock intermediate shaft automatic positioning device comprises a workbench, wherein a fixed seat and a rotating seat are arranged on the workbench, the fixed seat is fixedly connected with the workbench, the rotating seat is hinged with one side of the fixed seat, a profiling positioning block for placing an intermediate shaft and a profiling bracket for placing an EPS workpiece are arranged on the rotating seat, a clamping assembly for clamping the intermediate shaft is arranged between the rotating seat and the profiling positioning block, and a limiting assembly for clamping the EPS workpiece is arranged between the rotating seat and the profiling bracket;

a positioning assembly for limiting an included angle between the rotating seat and the fixed seat is arranged between the rotating seat and the fixed seat, the positioning assembly comprises an angle positioning collision block and a turnover surface fixed on the rotating seat, the angle positioning collision block is fixed on the fixed seat, and the angle positioning collision block is provided with a positioning surface;

under the initial condition, the locating surface with the mesa of workstation is the contained angle setting, the upset face with the mesa parallel arrangement of workstation is in the axis of the epaxial screw of jackshaft is crossing setting with vertical direction, works as the upset face with when the locating surface contact, the axis of screw is parallel arrangement with vertical direction.

By the technical scheme, an operator places the intermediate shaft and the EPS workpiece in the profiling positioning block and the profiling bracket respectively, the clamping component clamps the intermediate shaft, the limiting component clamps the EPS workpiece in the profiling bracket, the power-assisted motor and the circuit board shield the screw in the vertical direction at the moment, the screw is difficult to be locked by using a full-automatic screw machine, when the rotating seat is rotated until the overturning surface is contacted with the positioning surface of the angle positioning collision block, the central axis of the screw is arranged in parallel with the vertical direction, and at the moment, the power-assisted motor and the circuit board rotate along with the rotation, so that the power-assisted motor and the circuit board deviate from the gap above the screw, the full-automatic screw locking machine can conveniently stretch into the gap to lock the screw, the operation difficulty of locking the screw by an operator is reduced, the working efficiency is improved, in addition, the assisting motor and the circuit board do not need to be adjusted in installation position, and therefore operation difficulty in production and installation processes is reduced.

Furthermore, a positioning groove is formed in the rotating seat, a stop block is fixedly arranged on the fixing seat, one end, far away from the fixing seat, of the stop block penetrates through the positioning groove, and the angle positioning collision block is fixedly arranged at the end part, far away from the fixing seat, of the stop block.

Through above-mentioned technical scheme, too big messenger positioner takes place to rotate at the in-process moment of torsion of lock screw, and the setting of dog prevents to rotate the seat and rotates to reduce the possibility that causes the work piece to damage and the unqualified possibility of screw moment of torsion.

Furthermore, a counter bore is formed in the angle positioning collision block in a penetrating mode, a thread groove is formed in the stop block, and a fastening bolt is arranged in the counter bore and is in threaded connection with the thread groove.

Through above-mentioned technical scheme, realize that the angle location hits the dismantled fixed connection between piece and the dog, when the final angle that forms of seat and fixing base need be adjusted to rotate, only need to change the angle location and hit the piece.

Furthermore, the turnover face is located in the positioning groove and fixedly connected with the rotating seat, the turnover face is abutted to the stop block, and the side face of the stop block, which deviates from the turnover face, is attached to the groove wall of the positioning groove.

Through above-mentioned technical scheme, dog and upset face are filled and are made to rotate the seat and rotate the in-process and the dog laminating in the constant head tank, reduce the clearance between the two to reduce and rotate the possibility that the seat rocked.

Furthermore, be equipped with the drive on the rotation seat rotate the seat around with the driving piece of the articulated department upset of fixing base, the driving piece includes the upset cylinder, the upset cylinder with rotate the seat and deviate from the side drive of profile modeling locating piece is connected.

Through above-mentioned technical scheme, the upset cylinder starts to drive and rotates the seat upset, realizes rotating the automatic rotation of seat, and the operating personnel of being convenient for operates.

Furthermore, the clamping assembly comprises a clamping cylinder and a clamping plate, the clamping plate is fixedly connected with the end part of the telescopic rod of the clamping cylinder, and a clamping space is formed between the clamping plate and the profiling positioning block.

Through above-mentioned technical scheme, die clamping cylinder drives pinch-off blades and jackshaft butt, and pinch-off blades presss from both sides the jackshaft tightly in pressing from both sides tight space, realizes the stable installation of jackshaft, accomplishes the preliminary accurate positioning of jackshaft.

Further, it includes revolving cylinder and supports the piece to inject the subassembly, revolving cylinder with support a drive connection in order to drive support the piece around revolving cylinder's axial rotation extremely with EPS work piece butt, it is provided with two sets ofly to inject the subassembly.

Through above-mentioned technical scheme, revolving cylinder is rotatory to be driven and is supported piece and EPS work piece butt, realizes the stable installation of EPS work piece, accomplishes the preliminary accurate positioning of EPS work piece.

Furthermore, a supporting block is arranged on the rotating seat and is positioned between the two stop blocks.

Through the technical scheme, the supporting blocks are arranged to share the weight of the middle shaft and the EPS workpiece, and the effect of further manufacturing the whole workpiece is achieved.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) by arranging the rotating seat, the fixed seat, the profiling positioning block, the profiling bracket and the like, the intermediate shaft and the EPS workpiece are respectively placed on the profiling positioning block and the profiling bracket, the intermediate shaft is clamped by the clamping assembly, the EPS workpiece is clamped in the profiling bracket by the limiting assembly, the screw is shielded by the power motor and the circuit board in the vertical direction at the moment, the full-automatic screw machine is difficult to be used for locking the screw, when the rotating seat is rotated until the overturning surface is contacted with the positioning surface of the angle positioning collision block, the central axis of the screw is arranged in parallel with the vertical direction, the power motor and the circuit board rotate at the moment, so that the power motor and the circuit board deviate from the gap above the screw, the full-automatic screw machine can conveniently extend into the gap to lock the screw, the operation difficulty of an operator for locking the screw is reduced, the working, thereby reducing the operation difficulty in the production and installation processes;

(2) through setting up the upset cylinder, the upset cylinder starts to drive and rotates the seat upset, realizes rotating the automatic rotation of seat, and the operating personnel of being convenient for operates.

Drawings

FIG. 1 is a schematic diagram of a screw of the prior art;

fig. 2 is an overall schematic view of an embodiment of the present invention;

fig. 3 is an overall schematic view showing the specific structure of the clamping assembly, the limiting assembly and the positioning assembly according to the present invention;

fig. 4 is a schematic structural view showing the position of the turnover cylinder according to the present invention;

fig. 5 is a schematic structural view showing a connection relationship between a fastening bolt and a thread groove.

Reference numerals: 1. a work table; 2. a fixed seat; 3. a rotating seat; 31. positioning a groove; 4. profiling positioning blocks; 5. a profiling bracket; 6. a clamping assembly; 61. a clamping cylinder; 62. a clamping plate; 7. defining an assembly; 71. a rotating cylinder; 72. an abutting piece; 8. a positioning assembly; 81. positioning the collision block in an angle; 812. a countersunk hole; 82. turning over the surface; 9. a clamping space; 10. positioning the surface; 11. a support block; 12. a stopper; 13. turning over the air cylinder; 14. a thread groove; 15. fastening a bolt; 16. a full-automatic screw machine; 17. an intermediate shaft; 18. EPS work piece; 19. a flight frame; 20. a screw; 21. a booster motor; 22. a circuit board; 23. A guide pin; 24. and (7) positioning the holes.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

With reference to fig. 2 and 3, an automatic positioning device for an intermediate shaft of an EPS lock comprises a workbench 1, wherein a fixed seat 2 and a rotating seat 3 are arranged on the workbench 1, the fixed seat 2 is fixedly connected with the workbench 1, one side of the rotating seat 3 in the length direction is hinged with one side of the fixed seat 2 in the length direction through a rotating shaft, a profiling positioning block 4 for placing the intermediate shaft and a profiling bracket 5 for placing an EPS workpiece are arranged on the rotating seat 3, a clamping assembly 6 for clamping the intermediate shaft is arranged between the rotating seat 3 and the profiling positioning block 4, a limiting assembly 7 for clamping the EPS workpiece is arranged between the rotating seat 3 and the profiling bracket 5, a positioning assembly 8 for limiting the included angle between the rotating seat 3 and the fixed seat 2 is arranged between the rotating seat 3 and the fixed seat 2, the intermediate shaft is clamped in the profiling positioning block 4 by the clamping assembly 6, the limiting assembly 7 clamps the EPS workpiece, through rotating seat 3, locating component 8 prescribes a limit to the turned angle who rotates seat 3 for epaxial screw axis in the jackshaft is parallel arrangement with vertical direction, and the full-automatic screw machine 16 of being convenient for is close to the screw and locks the screw in vertical direction.

As shown in fig. 3, a groove for placing the intermediate shaft is formed in the profiling positioning block 4, the clamping assembly 6 includes a clamping cylinder 61 and a clamping plate 62, the clamping plate 62 is fixedly connected with the end portion of the telescopic rod of the clamping cylinder 61, a clamping space 9 is formed between the clamping plate 62 and the profiling positioning block 4, the intermediate shaft is placed in the groove in a matched manner and is located in the clamping space 9, and the clamping cylinder 61 moves to drive the clamping plate 62 to be close to the intermediate shaft and to press the intermediate shaft tightly.

The profile modeling bracket 5 is offered and is used for placing the recess of EPS work piece, and the EPS work piece chucking is in flying the frame in advance, and it includes revolving cylinder 71 and supports the piece 72 to inject subassembly 7, supports the piece 72 and sets up to the pin, and the pin is fixed to be worn to establish on revolving cylinder 71. It is provided with two sets ofly to inject subassembly 7, and two revolving cylinder 71 are in EPS work piece axial both sides respectively, and when revolving cylinder 71 moved to being close to EPS work piece axis, drive and support the piece 72 and be close to the EPS work piece, support tight piece 72 and aircraft frame surface and support tightly, realize supporting the EPS work piece tightly.

The rotating seat 3 is fixedly provided with a supporting block 11, the supporting block 11 is positioned between the two stop blocks 12, and when the rotating seat 3 rotates to the limit position, the supporting block 11 supports the weight of the middle shaft and the EPS workpiece, so that the middle shaft and the EPS workpiece are stably positioned on the rotating seat 3.

Specifically, locating component 8 includes that the angular positioning hits the piece 81 and is fixed in the turn-over face 82 on rotating seat 3, and the angular positioning hits the piece 81 and is provided with two, rotates seat 3 and has seted up two constant head tanks 31 along its length direction, and constant head tank 31 is the profile modeling form, has set firmly two dogs 12 on the fixing base 2, and two dogs 12 keep away from the one end of fixing base 2 and run through respectively and wear out two constant head tanks 31, and two angular positioning hit piece 81 fixed mounting respectively in the tip that fixing base 2 was kept away from to two dogs 12. The angle positioning collision block 81 is provided with a positioning surface 10, and the positioning surface 10 and the table surface of the workbench 1 form an included angle. In this embodiment, when the top of the working table 1 is parallel to the horizontal plane, the included angle between the positioning surface 10 and the top of the working table 1 is 30 ° to 35 °.

Correspondingly, turn-over face 82 is provided with two, two turn-over faces 82 are in two constant head tanks 31 respectively, and with rotating seat 3 fixed connection, three sides of turn-over face 82 and the cell wall butt of constant head tank 31, and another side and the dog 12 butt of turn-over face 82 set up, dog 12 deviates from the side of turn-over face 82 and the cell wall laminating setting of constant head tank 31, make the clearance between dog 12 and turn-over face 82 and the constant head tank 31 reduce, dog 12 and turn-over face 82 fill make to rotate seat 3 and rotate the in-process and the laminating of dog 12 in constant head tank 31, thereby reduce the possibility that rotation seat 3 rocked.

As shown in fig. 4, the rotating seat 3 is provided with a driving part for driving the rotating seat 3 to overturn around the hinged position with the fixed seat 2, the driving part comprises an overturning cylinder 13, and the overturning cylinder 13 is in driving connection with the side surface of the rotating seat 3 departing from the profiling positioning block 4.

Under initial condition, the rotating seat 3 and the fixed seat 2 are both arranged in parallel with the table board of the workbench 1, namely, the overturning surface 82 is arranged in parallel with the table board of the workbench 1, the central axis of the screw on the intermediate shaft is intersected with the vertical direction, and the power-assisted motor and the circuit board are arranged above the screw and cover the screw. When needing the locking screw, start upset cylinder 13, upset cylinder 13 drives and rotates the whole rotation of seat 3, and when the locating surface 10 butt of upset face 82 and angle location dog 12, rotate seat 3 stop motion, at this moment, the axis of screw is parallel arrangement with vertical direction, makes things convenient for full-automatic screw machine 16 to stretch to the screw in vertical direction to lock the screw.

As shown in fig. 5, in order to adjust the rotation angle of the rotating base 3 according to the position of the screw, a plurality of countersunk holes 812 are formed in the angular positioning collision block 81 in a penetrating manner, a plurality of thread grooves 14 are correspondingly formed in the stopper 12, and a fastening bolt 15 is arranged in each countersunk hole 812, and the fastening bolt 15 is in threaded connection with the thread groove 14, so that the angular positioning collision block 81 and the stopper 12 can be detachably and fixedly connected, the angular positioning collision block 81 can be replaced, and the rotation angle of the rotating base 3 can be adjusted.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An EPS lock intermediate shaft automatic positioning device comprises a workbench (1), and is characterized in that a fixed seat (2) and a rotating seat (3) are arranged on the workbench (1), the fixed seat (2) is fixedly connected with the workbench (1), the rotating seat (3) is hinged with one side of the fixed seat (2), a profiling positioning block (4) for placing an intermediate shaft and a profiling bracket (5) for placing an EPS workpiece are arranged on the rotating seat (3), a clamping assembly (6) for clamping the intermediate shaft is arranged between the rotating seat (3) and the profiling positioning block (4), and a limiting assembly (7) for clamping the EPS workpiece is arranged between the rotating seat (3) and the profiling bracket (5);

a positioning assembly (8) for limiting an included angle between the rotating seat (3) and the fixed seat (2) is arranged between the rotating seat (3) and the fixed seat (2), the positioning assembly (8) comprises an angle positioning collision block (81) and a turnover surface (82) fixed on the rotating seat (3), the angle positioning collision block (81) is fixed on the fixed seat (2), and the angle positioning collision block (81) is provided with a positioning surface (10);

under the initial condition, locating surface (10) with the mesa of workstation (1) is the contained angle setting, upset face (82) with the mesa parallel arrangement of workstation (1) is in the axis of the epaxial screw of jackshaft is crossing setting with vertical direction, works as upset face (82) with when locating surface (10) contact, the axis of screw is parallel arrangement with vertical direction.

2. The automatic positioning device for the middle shaft of the EPS lock according to claim 1, wherein a positioning groove (31) is formed in the rotating seat (3), a stop block (12) is fixedly arranged on the fixed seat (2), one end of the stop block (12) far away from the fixed seat (2) penetrates through the positioning groove (31), and the angular positioning collision block (81) is fixedly arranged at the end of the stop block (12) far away from the fixed seat (2).

3. The EPS lock intermediate shaft automatic positioning device according to claim 2, characterized in that a counter bore (812) is formed in the angular positioning collision block (81) in a penetrating manner, a thread groove (14) is formed in the stop block (12), a fastening bolt (15) is arranged in the counter bore (812), and the fastening bolt (15) is in threaded connection with the thread groove (14).

4. The EPS lock intermediate shaft automatic positioning device according to claim 2, characterized in that the turning surface (82) is located in the positioning groove (31) and is fixedly connected with the rotating seat (3), the turning surface (82) is arranged in abutment with the stop block (12), and the side of the stop block (12) facing away from the turning surface (82) is arranged in abutment with the groove wall of the positioning groove (31).

5. The EPS lock intermediate shaft automatic positioning device according to claim 1, characterized in that a driving member for driving the rotating seat (3) to turn around the hinge joint with the fixed seat (2) is arranged on the rotating seat (3), the driving member comprises a turning cylinder (13), and the turning cylinder (13) is in driving connection with the side surface of the rotating seat (3) departing from the profiling positioning block (4).

6. The EPS lock intermediate shaft automatic positioning device according to claim 1, characterized in that the clamping assembly (6) comprises a clamping cylinder (61) and a clamping plate (62), the clamping plate (62) is fixedly connected with the end of the telescopic rod of the clamping cylinder (61), and a clamping space (9) is formed between the clamping plate (62) and the profiling positioning block (4).

7. The EPS lock intermediate shaft automatic positioning device is characterized in that the limiting assembly (7) comprises a rotating cylinder (71) and an abutting piece (72), the rotating cylinder (71) is in driving connection with the abutting piece (72) to drive the abutting piece (72) to rotate around the axial direction of the rotating cylinder (71) to abut against the EPS workpiece, and two groups of limiting assemblies (7) are arranged.

8. The EPS lock jackshaft automatic positioning device of claim 2, characterized in that, be equipped with supporting shoe (11) on the seat of rotating (3), the supporting shoe (11) is in between two dog (12).