Error-proof assembling device for steering gear parts

Abstract

The utility model relates to a mistake-proof assembly device for steering gear parts, and belongs to the technical field of steering gear detection equipment. The device is composed of a working table, a supporting frame, rack protective cover locking mechanisms, a left outer ball joint storage table, a right outer ball joint storage table, a placing frame and a workpiece clamping mechanism, the supporting frame is arranged on the working table in a cross-line mode, and the rack protective cover locking mechanisms are symmetrically arranged at the positions, corresponding to the working table, of the supporting frame. A workpiece clamping mechanism is arranged on the corresponding workbench between the rack protective cover locking mechanisms, a left outer ball joint storage table is arranged on the workbench on one side of the workpiece clamping mechanism, and a right outer ball joint storage table is arranged on the workbench on the other side of the workpiece clamping mechanism; placing frames are respectively arranged on the working table on the outer sides of the left outer ball joint storage table and the right outer ball joint storage table, and torque wrenches are placed on the placing frames. According to the steering gear part mistake-proofing assembly device, the production efficiency of steering gears is effectively improved, and meanwhile the yield of steering gear products is improved.

Description

Technical Field

[0001] The utility model relates to an anti-wrong assembly device for steering gear parts and belongs to the technical field of steering gear detection equipment. Background Art

[0002] The steering gear is commonly known as the steering machine. Its main function is to make the mechanical device with a power source randomly change its running route and direction during operation. In the production process of steering gears, existing steering gear manufacturers need to manually assemble some parts that match the steering gear, specifically: first, the staff places the steering gear on the locking station, manually locks the steering gear, and then puts the single-ear stepless clamp on the rack protective cover to manually lock it; after the single-ear stepless clamp is locked, the staff uses a torque wrench to tighten the hexagonal nut on the steering gear with a fixed torque; after the hexagonal nut is tightened, the staff puts the left and right outer ball joints on the left and right ends of the steering gear respectively; after the above parts are installed, the steering gear can be quality inspected in the factory; due to individual differences among the staff, it is very easy to have problems such as missing the single-ear stepless clamp, the hexagonal nut on the steering gear is not tightened, and the left and right outer ball joints are installed in the wrong position during the manual installation of parts, which not only reduces the yield rate of the steering gear, but also the steering gear that is detected to have problems needs to be reworked, and the reworked steering gear reduces the production efficiency of the steering gear and directly affects the delivery period of the steering gear, so it is necessary to improve it. Summary of the invention

[0003] The utility model aims to provide a device for preventing wrong assembly of steering gear parts, which can effectively improve the production efficiency of the steering gear and improve the yield rate of the steering gear products.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions

[0005] A device for preventing steering gear parts from being assembled incorrectly consists of a workbench, a support frame, a rack guard cover locking mechanism, a left outer ball joint storage table, a right outer ball joint storage table, a placement frame and a workpiece clamping mechanism, and is characterized in that: a support frame is arranged across the workbench, a rack guard cover locking mechanism is symmetrically arranged at a position corresponding to the workbench on the support frame, a workpiece clamping mechanism is arranged on the workbench corresponding to the rack guard cover locking mechanism, a left outer ball joint storage table is arranged on the workbench on one side of the workpiece clamping mechanism, a right outer ball joint storage table is arranged on the workbench on the other side of the workpiece clamping mechanism, placement frames are respectively arranged on the workbench outside the left outer ball joint storage table and the right outer ball joint storage table, and torque wrenches are placed on the placement frames.

[0006] The workbench is rectangular in shape, and self-locking universal wheels are respectively arranged at the four corners of the workbench.

[0007] The cross-section of the described support frame is in a "冂" shape, and a storage rack is arranged inside the support frame.

[0008] The described rack guard locking mechanism includes a spring balancer, a first in-place sensor, and a pneumatic caliper. The spring balancer is suspended on the support frame by a suspension rope. An induction plate is installed on the steel rope of the spring balancer. A first in-place sensor is arranged on the spring balancer corresponding to the induction plate. A first induction light is arranged on the first in-place sensor. A pneumatic caliper is installed at the end of the steel rope below the induction plate.

[0009] The described left outer ball joint storage table and right outer ball joint storage table respectively include a storage table body. The storage table body is in a rectangular block shape. A placement groove is opened on the storage table body. An installation hole is opened on the storage table body corresponding to the placement groove. The installation hole is correspondingly communicated with the placement groove. A second in-place sensor is installed in the installation hole. A second induction light is arranged on the second in-place sensor.

[0010] The described workpiece clamping mechanism includes a base, side plates, a resisting block, clamping blocks, and a sliding plate. Side plates are symmetrically and fixedly installed on the base. A resisting block is fixedly installed at one end between the side plates. Slide rails are symmetrically arranged on the base on one side of the resisting block. A让位槽 (it seems there is a misspelling here, assuming it should be "relieving groove") is arranged between the slide rails. Clamping blocks are slidably installed on the slide rails through the sliding plate. A horizontal pushing cylinder is fixedly installed below the base. The piston rod of the horizontal pushing cylinder is connected to the sliding plate through a connecting plate. A third in-place sensor is arranged on the resisting block. A third induction light is arranged on the third in-place sensor.

[0011] Rubber cushion blocks are installed at the corresponding positions between the resisting block and the clamping blocks on the described side plates.

[0012] A first clamping pad is arranged on the inner side of the described resisting block. A second clamping pad is arranged on the clamping block corresponding to the first clamping pad. Positioning grooves are respectively opened on the first clamping pad and the second clamping pad.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows:

[0014] The anti-misassembly device for steering gear parts can automatically clamp the steering gear through the workpiece clamping mechanism, without manual locking, saving the time for workpiece anti-misassembly detection and improving the efficiency of workpiece anti-misassembly detection; through the mutual cooperation of the rack guard locking mechanism, the left outer ball joint storage table, the right outer ball joint storage table, and the torque wrench, the assembly work of the steering gear parts is realized. At the same time, the in-place sensors of the rack guard locking mechanism, the left outer ball joint storage table, and the right outer ball joint storage table can sense the actions of each rack guard locking mechanism, the left outer ball joint storage table, and the right outer ball joint storage table, and transmit the signals after the induction actions are in place to the program controller. The program controller further controls the opening of the workpiece clamping mechanism according to the in-place situations sensed by each in-place sensor, thereby realizing interlocking anti-misassembly detection, and effectively avoiding the situations of missing operations and misoperations during the assembly process of the steering gear. Brief Description of the Drawings

[0015] Figure 1 It is a three - dimensional structural schematic diagram of the present utility model in the working state;

[0016] Figure 2 It is a three - dimensional structural schematic diagram of the rack protective cover locking mechanism in the present utility model;

[0017] Figure 3 It is a three - dimensional structural schematic diagram of the right outer ball joint storage table in the present utility model;

[0018] Figure 4 It is a three - dimensional structural schematic diagram of the workpiece clamping mechanism in the present utility model.

[0019] In the figure: 1, workbench; 2, support frame; 3, left outer ball joint storage table; 4, right outer ball joint storage table; 5, placement rack; 6, self - locking universal wheel; 7, storage rack; 8, spring balancer; 9, first in - place inductor; 10, pneumatic caliper; 11, suspension rope; 12, base; 13, side plate; 14, abutting block; 15, clamping block; 16, slide plate; 17, slide rail; 18, first clamping pad; 19, second clamping pad; 20, positioning groove; 21, rubber cushion block; 22, transverse push cylinder; 23, connecting plate; 24, third in - place inductor; 25, torque wrench; 26, storage table body; 27, placement groove; 28, second in - place inductor; 29, program controller; 30, steering gear; 31, induction plate. Detailed Description of the Preferred Embodiment

[0020] As shown Figure 1-4 in the

[0021] The anti - misassembly device for steering gear parts is composed of a workbench 1, a support frame 2, a rack protective cover locking mechanism, a left outer ball joint storage table 3, a right outer ball joint storage table 4, a placement rack 5 and a workpiece clamping mechanism. The workbench 1 is rectangular, and self - locking universal wheels 6 are respectively and fixedly installed at the four corners of the bottom of the workbench 1. During use, the workbench 1 can be conveniently moved through the self - locking universal wheels 6 in the unlocked state so that the workbench 1 can be adjusted to a suitable working position, and the position of the workbench 1 can be locked through the self - locking universal wheels 6 in the locked state to prevent the workbench 1 from slipping.

[0022] A support frame 2 is arranged across the workbench 1. The support frame 2 is a frame body with a "冂" - shaped cross - section. Storage racks 7 are symmetrically arranged inside the support frame 2. The storage rack 7 at the left end of the support frame 2 is used to store left outer ball joints, and the storage rack 7 at the right end of the support frame 2 is used to store right outer ball joints. The purpose is to facilitate the staff to place the left outer ball joints on the left outer ball joint storage table 3 correspondingly and the right outer ball joints on the right outer ball joint storage table 4 correspondingly, realizing the classification of left outer ball joints and right outer ball joints and preventing the misassembly of the positions of left outer ball joints and right outer ball joints.

[0023] A rack guard cover locking mechanism is symmetrically arranged at a position corresponding to the workbench 1 on the support frame 2, and the rack guard cover locking mechanism includes a spring balancer 8, a first in-position sensor 9 and a pneumatic caliper 10. The top of the spring balancer 8 is suspended on the support frame 2 by a suspension rope 11. The spring balancer 8 is a commercially available product. A sensing plate 31 is fixedly installed on the steel rope extending from the spring balancer 8. A first in-position sensor 9 (model E3F-DS30P1) is fixedly installed on the outer shell of the spring balancer 8 corresponding to the sensing plate 31. A first in-position sensor 9 is arranged on the first in-position sensor 9, and the first in-position sensor 9 is electrically connected to the first in-position sensor 9.

[0024] A pneumatic caliper 10 is installed at the end of the steel rope below the induction plate. The pneumatic caliper 10 is a commercially available part. When working, the pneumatic caliper 10 can tighten the single-ear stepless clamp.

[0025] A workpiece clamping mechanism is arranged on the workbench 1 corresponding to the rack guard locking mechanism, and the workpiece clamping mechanism includes a base 12, a side plate 13, a stop block 14, a clamping block 15 and a slide plate 16. The base 12 is fixedly installed on the workbench 1. The base 12 is in the shape of a rectangular plate. The side plates 13 are symmetrically fixedly installed on the base 12. The stop block 14 is fixedly installed between one end of the side plates 13. A first clamping pad 18 is arranged on the inner side of the stop block 14. Slide rails 17 are symmetrically arranged on the base 12 on one side of the stop block 14. A clearance groove is arranged between the slide rails 17. A clamping block 15 is slidably installed on the slide rail 17 through the slide plate 16. A second clamping pad 19 is arranged on the clamping block 15 corresponding to the first clamping pad 18. Positioning grooves 20 are respectively provided on the first clamping pad 18 and the second clamping pad 19. The positioning groove 20 facilitates the diverter 30 to be clamped and fixed between the first clamping pad 18 and the second clamping pad 19.

[0026] The side plate 13 is provided with rubber pads 21 at corresponding positions between the stop block 14 and the clamping block 15 . The rubber pads 21 are used to protect the steering gear 30 and prevent the steering gear 30 from being worn on the side plate 13 .

[0027] A horizontal thrust cylinder 22 is fixedly installed under the base 12, and the horizontal thrust cylinder 22 is arranged inside the workbench 1. The piston rod of the horizontal thrust cylinder 22 is fixedly installed with a connecting plate 23, and the connecting plate 23 is connected to the slide plate 16. When working, when the piston rod of the horizontal thrust cylinder 22 is extended, the piston rod drives the slide plate 16 to slide along one end of the slide rail 17 to the other end through the connecting plate 23, thereby the slide plate 16 drives the clamping block 15 to move synchronously, and the clamping block 15 and the stop block 14 are close to each other so that the steering gear 30 can be clamped.

[0028] The stop block 14 is provided with a third in-position sensor 24 (model: PDB-CR50TGIRS485), and the third in-position sensor 24 is provided with a third induction light, and the third induction light is electrically connected to the third in-position sensor 24 .

[0029] A left outer ball joint storage table 3 is provided on the workbench 1 on one side of the workpiece clamping mechanism, and a right outer ball joint storage table 4 is provided on the workbench 1 on the other side of the workpiece clamping mechanism. The left outer ball joint storage table 3 and the right outer ball joint storage table 4 are staggered on the workbench 1. The purpose of such arrangement is to facilitate the installation of the outer ball joint.

[0030] A placement rack 5 is provided on the workbench 1 outside the left outer ball joint storage table 3 and the right outer ball joint storage table 4, respectively. A torque wrench 25 (model SGTS-10) with signal output is placed on the placement rack 5. The torque wrench 25 is a commercially available part.

[0031] The left outer ball joint storage table 3 and the right outer ball joint storage table 4 respectively include a storage table body 26, which is in the shape of a rectangular block. A placement groove 27 is provided on the storage table body 26, and a mounting hole is provided on the storage table body 26 corresponding to the placement groove 27. The mounting hole is connected to the placement groove 27, and a second in-position sensor 28 (model E3F-DS30P1) is installed in the mounting hole. A second in-position sensor 28 is provided with a second induction light, and the second induction light is electrically connected to the second in-position sensor 28.

[0032] A program controller 29 (model: Siemens PLCS7-600) is provided on the workbench 1 of the steering gear parts error-proof assembly device. The program controller 29 is electrically connected to the torque wrench 25, the first in-position sensor 9, the second in-position sensor 28 of the left outer ball joint storage table 3, the second in-position sensor 28 of the right outer ball joint storage table 4, the third in-position sensor 24 and the horizontal thrust cylinder 22. The torque wrench 25, the first in-position sensor 9, the second in-position sensor 28 of the left outer ball joint storage table 3, the second in-position sensor 28 of the right outer ball joint storage table 4 and the third in-position sensor 24 respectively send their own in-position sensing signals to the program controller 29, and the program controller 29 controls the action of the horizontal thrust cylinder 22 after receiving the in-position sensing signals.

[0033] When the steering gear component error-proof assembly device is used, the steering gear 30 to be assembled is first placed between the stop block 14 and the clamp block 15 of the workpiece clamping mechanism, so that the steering gear 30 contacts the rubber pad 21 of the side plate 13. When the steering gear 30 is placed, the third in-place sensor 24 detects that the steering gear 30 is in place, and transmits the in-place signal of the steering gear 30 to the program controller 29. After the program controller 29 receives the in-place signal, the program controller 29 controls the piston rod of the horizontal push cylinder 22 to extend, and the piston rod drives the clamp block 15 to slide from one end to the other end along the direction of the slide rail 17 through the slide plate 16, thereby realizing that the stop block 14 and the clamp block 15 clamp the steering gear 30.

[0034] After the steering gear 30 is clamped, the staff pulls the pneumatic calipers 10 suspended on the left and right ends of the support frame 2 in turn, and tightens the single-ear stepless clamp on the left end of the steering gear 30 through the pneumatic caliper 10 at the left end of the support frame 2, and tightens the single-ear stepless clamp on the right end of the steering gear 30 through the pneumatic caliper 10 at the right end of the support frame 2. During the process of tightening the single-ear stepless clamp by the above-mentioned pneumatic caliper 10, the steel rope of the spring balancer 8 drives the sensing plate 31 away from the first in-position sensor 9. When the pneumatic caliper 10 finishes working and the spring balancer 8 retracts the steel rope, the sensing plate 31 resets and approaches the first in-position sensor 9 again. As a result, the first in-position sensor 9 detects the action signal of the pneumatic caliper 10 and transmits the action signal of the pneumatic caliper 10 to the program controller 29.

[0035] After the pneumatic caliper 10 pairs of single-ear stepless clamps are tightened, the staff tightens the hexagonal nut at the left end of the steering gear 30 through the torque wrench 25 at the left end of the workbench 1, and tightens the hexagonal nut at the right end of the steering gear 30 through the torque wrench 25 at the right end of the workbench 1. When each torque wrench 25 tightens the hexagonal nut into place, the torque wrench 25 transmits the tightening signal to the program controller 29.

[0036] After the tightening operation of the torque wrench 25 is completed, the torque wrench 25 is reset to the placement rack 5, and the staff takes the left outer ball joint from the left outer ball joint storage table 3 and installs it on the left end of the steering gear 30, and takes a replacement from the storage rack 7 at the left end of the support frame 2 to the left outer ball joint storage table 3. At this time, the second in-position sensor 28 of the left outer ball joint storage table 3 senses the left outer ball joint taking action signal, and transmits the left outer ball joint taking action signal to the program controller 29.

[0037] The staff takes the right outer ball joint from the right outer ball joint storage table 4 and installs it on the right end of the steering gear 30, and takes a replacement from the storage rack 7 at the right end of the support frame 2 and puts it on the right outer ball joint storage table 4. At this time, the second in-position sensor 28 of the right outer ball joint storage table 4 senses the right outer ball joint taking action signal and transmits the right outer ball joint taking action signal to the program controller 29.

[0038] When the programmable controller 29 detects the action signal of the pneumatic caliper 10, the tightening signal of the torque wrench 25, the left outer ball joint taking action signal, and the right outer ball joint taking action signal in sequence, the programmable controller 29 controls the piston rod of the push cylinder 22 to retract, and the stop block 14 and the clamp block 15 release the clamping of the steering gear 30, so that the assembled steering gear 30 can be removed and replaced with the next steering gear 30 to be assembled.

[0039] When the program controller 29 does not control the piston rod of the horizontal thrust cylinder 22 to retract, it means that there is a missing assembly at a workstation. By observing the first sensor light, the second sensor light and the third sensor light, if any of the sensor lights is not on, it means that the workstation is not assembled in place. The staff only needs to reassemble the workstation in place, and the program controller 29 can control the piston rod of the horizontal thrust cylinder 22 to retract, so that the stop block 14 and the clamp block 15 can unlock the steering gear 30.

Claims

1. A device for preventing wrong assembly of steering gear parts, comprising a workbench (1), a support frame (2), a rack guard locking mechanism, a left outer ball joint storage table (3), a right outer ball joint storage table (4), a placement frame (5) and a workpiece clamping mechanism, characterized in that: A support frame (2) is arranged across the workbench (1). Rack guard locking mechanisms are symmetrically arranged on the support frame (2) at positions corresponding to the workbench (1). A workpiece clamping mechanism is arranged on the workbench (1) corresponding to the positions between the rack guard locking mechanisms. A left outer ball joint storage table (3) is arranged on the workbench (1) on one side of the workpiece clamping mechanism, and a right outer ball joint storage table (4) is arranged on the workbench (1) on the other side of the workpiece clamping mechanism. Placing racks (5) are respectively arranged on the workbench (1) outside the left outer ball joint storage table (3) and the right outer ball joint storage table (4), and torque wrenches (25) are placed on the placing racks (5).

2. The device for preventing wrong assembly of steering gear parts according to claim 1, characterized in that: The workbench (1) is rectangular, and self-locking universal wheels (6) are respectively arranged at the four corners of the workbench (1).

3. The device for preventing wrong assembly of steering gear parts according to claim 1, characterized in that: The cross-section of the support frame (2) is in the shape of "冂", and a storage rack (7) is arranged inside the support frame (2).

4. The device for preventing wrong assembly of steering gear parts according to claim 1, characterized in that: The rack guard locking mechanism includes a spring balancer (8), a first in-place sensor (9) and a pneumatic caliper (10). The spring balancer (8) is suspended on the support frame (2) through a suspension rope (11). An induction plate (31) is installed on the steel rope of the spring balancer (8). The first in-place sensor (9) is arranged on the spring balancer (8) corresponding to the induction plate (31). A first induction lamp is arranged on the first in-place sensor (9). A pneumatic caliper (10) is installed at the end of the steel rope below the induction plate (31).

5. The device for preventing wrong assembly of steering gear parts according to claim 1, characterized in that: The left outer ball joint storage table (3) and the right outer ball joint storage table (4) respectively include a storage table body (26). The storage table body (26) is rectangular block-shaped. A placing groove (27) is formed on the storage table body (26). Mounting holes are formed on the storage table body (26) corresponding to the placing groove (27). The mounting holes are correspondingly communicated with the placing groove (27). A second in-place sensor (28) is installed in the mounting holes, and a second induction lamp is arranged on the second in-place sensor (28).

6. The device for preventing wrong assembly of steering gear parts according to claim 1, characterized in that: The workpiece clamping mechanism includes a base (12), side plates (13), a resisting block (14), clamping blocks (15) and a sliding plate (16). The side plates (13) are symmetrically and fixedly installed on the base (12). A resisting block (14) is fixedly installed at one end between the side plates (13). Slide rails (17) are symmetrically arranged on the base (12) on one side of the resisting block (14). A让位槽 is arranged between the slide rails (17). The clamping blocks (15) are slidably installed on the slide rails (17) through the sliding plate (16). A horizontal pushing cylinder (22) is fixedly installed below the base (12). The piston rod of the horizontal pushing cylinder (22) is connected with the sliding plate (16) through a connecting plate (23). A third in-place sensor (24) is arranged on the resisting block (14), and a third induction lamp is arranged on the third in-place sensor (24).

7. The device for preventing wrong assembly of steering gear parts according to claim 6, characterized in that: Rubber cushion blocks (21) are installed at the corresponding positions between the side plates (13) between the resisting block (14) and the clamping blocks (15).

8. The device for preventing wrong assembly of steering gear parts according to claim 6, characterized in that: A first clamping pad (18) is arranged on the inner side of the resisting block (14). A second clamping pad (19) is arranged on the clamping block (15) corresponding to the first clamping pad (18). Positioning grooves (20) are respectively formed on the first clamping pad (18) and the second clamping pad (19).

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