Automatic testing equipment for automobile power-assisted steering lock

Abstract

The invention belongs to the technical field of power-assisted steering lock testing, and particularly relates to automatic testing equipment for an automobile power-assisted steering lock, which comprises a testing workbench and a power-assisted steering lock main body, and is characterized in that a positioning base is fixedly mounted at the center of the bottom of a layout groove, and a rotating seat is slidably mounted at the top of the positioning base; a rotating inserting column is rotationally installed at the top of the rotating base, and a torque sensor is installed at the lower end of the rotating inserting column. According to the invention, when the servo motor drives the linear bidirectional screw rod to rotate, the moving plate support can move synchronously with the supporting moving block on the left side, when the active sliding table is just in contact with the passive sliding block, the moving plate support drives the linkage moving plate to move, and the test plug is just aligned to and close to the inlet of the wiring port; when the support moving block continues to drive the active sliding table to move, the test plug is completely inserted into the wiring port on the power-assisted steering lock main body, so that the synchronism of two actions of automatic plugging and automatic positioning is realized, and the operation steps are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a steering assist lock test device, in particular to an automatic test device for automobile steering assist lock. BACKGROUND

[0002] After the car is locked, the steering column can be locked by the automobile steering assist lock to increase the security of the vehicle against theft, so the automobile steering assist lock is widely used in vehicles. After receiving the control signal, the automobile steering assist lock locks the steering column and can resist a certain torque to prevent the steering column from being rotated by external force. In the prior art, there is no automatic detection device for automobile steering assist lock, and a screw is usually used to fix the automobile steering assist lock, and then a torque wrench is used for manual testing. After the test is completed, the screw needs to be disassembled, which is low in efficiency and needs to be improved.

[0003] A patent with authorization announcement number CN221148030U discloses an automatic test device for automobile steering assist lock, which comprises a base, a positioning baffle, a test plug, a rotating plug, a first positioning block and a second positioning block. The automobile steering assist lock is provided with a fixed lug on both sides. The first positioning block and the second positioning block are arranged on the base and correspond to the fixed lug. The front end face of the automobile steering assist lock is provided with a wiring port. The base is provided with a cylinder located in front of the automobile steering assist lock. The output end of the cylinder is provided with a push plate facing the front end of the automobile steering assist lock. The test plug is arranged on the push plate and points to the wiring port. The rotating plug is rotatably arranged on the base and is inserted into the automobile steering assist lock. The automatic test device for automobile steering assist lock improves the efficiency of the test work.

[0004] Although the above-mentioned technology has advantages, it still has defects: the synchronization of the operation steps is not good, and the operation before the test is complicated. Therefore, the present application designs an automatic test device for automobile steering assist lock. SUMMARY

[0005] The main purpose of the present application is to provide an automatic test device for automobile steering assist lock to effectively solve the problems raised by the inventors in the above background.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] An automatic test device for automobile steering assist lock comprises a test workbench and a steering assist lock main body. A layout groove is formed in the top of the test workbench, a positioning base is fixedly installed at the center of the groove bottom of the layout groove, a rotating seat is slidably installed on the top of the positioning base, a rotating plug is rotatably installed on the top of the rotating seat, and a torque sensor is installed at the lower end of the rotating plug.

[0008] The steering assist lock body is placed on the top of the test workbench, and the bottom of the steering assist lock body is provided with a positioning opening, and the middle of the positioning opening is provided with a detection opening matched with the rotating insertion column, that is, the rotating insertion column is located directly below the detection opening.

[0009] The layout groove is movably provided with two symmetrically arranged opening arms, and the opening arms are fixedly provided with clamping heads. The opening arms are oppositely movable, and the opening arms are located obliquely above the positioning base.

[0010] The left side of the steering assist lock body is fixedly provided with a wiring port, the test workbench is movably provided with a linkage moving plate, and the linkage moving plate is fixedly provided with a test plug. The test plug is arranged at the same height with the wiring port.

[0011] Preferably, the X-axis sliding rods are fixedly arranged between the side walls of the local groove and the positioning base, and the passive sliding blocks are slidably arranged on the X-axis sliding rods. The passive sliding blocks are respectively located on the two sides of the positioning base. The X-axis sliding rods are sleeved with return springs, that is, the return springs are fixedly connected between the passive sliding blocks and the positioning base. The top of the passive sliding block and the side of the rotating seat are fixedly provided with protrusions, and the linkage frame is hinged to the protrusions and located below the opening arms.

[0012] Preferably, the local groove is rotatably provided with two symmetrically arranged driven shafts, and the two opening arms are respectively fixedly arranged on the two driven shafts. The rotation directions of the two driven shafts are opposite.

[0013] Preferably, the X-axis sliding rods are slidably provided with a driving sliding table, the top of the driving sliding table is fixedly provided with a driving rack, the driven shafts are fixedly provided with passive gears, and the passive gears are in meshing transmission with the driving rack.

[0014] Preferably, the PLC controller is fixedly arranged on the right side of the top of the test workbench, and the test plug and the torque sensor are electrically connected with the PLC controller.

[0015] Preferably, the bottom of the layout groove is provided with a linear sliding groove, and a linear bidirectional screw rod is rotatably arranged in the linear sliding groove. Two supporting moving blocks are threadedly arranged on the linear bidirectional screw rod, and the supporting moving blocks are slidably arranged in the linear sliding groove. The top end of the supporting moving block is fixedly connected with the bottom of the driving sliding table. The test workbench is fixedly provided with a servo motor, and the output end of the servo motor is fixedly connected with the end of the linear bidirectional screw rod. When the driving sliding table continues to move, the passive sliding block will be touched and pressed, so that the passive sliding block slides along the X-axis sliding rod. At this time, the return spring is compressed, the rotating seat moves upward under the pushing of the linkage frame, and the rotating insertion column is lifted and inserted into the detection opening of the steering assist lock body. The clamping head clamps the flexible clamping plate.

[0016] Preferably, the left side of the top of the test workbench is provided with a displacement opening communicated with the linear sliding groove, the linkage moving plate moves in the displacement opening, the moving plate support is screw-mounted on the linear bidirectional screw rod and is slidingly installed in the linear sliding groove, the bottom of the linkage moving plate is fixedly connected with the top of the moving plate support, the right side inner wall of the displacement opening is fixedly installed with a pressure sensor, and the pressure sensor and the servo motor are electrically connected with the PLC controller.

[0017] Preferably, when the test plug is completely inserted into the wiring port, the right side of the linkage moving plate abuts against the pressure sensor, during the rotation of the linear bidirectional screw rod driven by the servo motor, the moving plate support will move synchronously with the left support moving block, when the active sliding table just contacts the passive sliding block, the moving plate support drives the linkage moving plate to move, the test plug is just aligned with and close to the entrance of the wiring port, when the support moving block continues to drive the active sliding table to move, the test plug is completely inserted into the wiring port on the steering assist lock main body.

[0018] Preferably, a plurality of mounting lugs are fixedly installed on the steering assist lock main body, and the side wall of the positioning opening is fixedly installed with a flexible clamping plate.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] (1) In the application, the automobile steering assist lock is placed on the test workbench, the clamping heads on the two spreading arms are just aligned with the two positioning openings, the rotating insertion column is aligned with the detection opening, so as to confirm the test position of the steering assist lock main body, the servo motor is started during the test, the linear bidirectional screw rod is rotated driven by the servo motor, then the two support moving blocks will move towards each other in the linear sliding groove, so that the two active sliding tables move towards each other, due to the meshing transmission of the active rack and the passive gear, the passive gear drives the driven shaft to rotate by a certain angle, then the spreading arm drives the clamping head to swing into the positioning opening and clamp on the flexible clamping plate, so that the steering assist lock main body is preliminarily positioned, which guarantees the accuracy of subsequent test.

[0021] (2) In the application, when the active sliding table continues to move, it will touch and press the passive sliding block, so that the passive sliding block slides along the X-axis slide rod, at this time, the return spring is compressed, under the pushing of the linkage frame, the rotating seat moves linearly upwards, then the rotating insertion column is lifted and inserted into the detection opening of the steering assist lock main body, the clamping head clamps the flexible clamping plate, so that the automobile steering assist lock can be tested, the torque sensor on the rotating insertion column can be tested, the torque sensor is connected with the PLC controller, and can real-time feedback the test situation and result, which discards the traditional fixed mode and has better use effect.

[0022] (Three), in this application, the servo motor driven linear bidirectional screw rotation period, the moving plate support will be synchronized with the left support moving block, when the active slide and passive slide block just contact, moving plate support drive linkage moving plate movement, test plug is just aligned and close to the entrance of the port, when the support moving block continues to drive the active slide to move, test plug is completely inserted into the steering lock main body of the port, the realization of automatic insertion and automatic positioning two actions of synchronism, reduce the operation steps, for the subsequent test of automobile steering lock;

[0023] When the test plug is inserted into the port, the right side of the linkage moving plate just presses the pressure sensor, the pressure sensor transmits the signal to the PLC controller, so that the PLC controller controls the servo motor to stop working, then the support moving block and the moving plate support are not moving, so that the automatic insertion and automatic positioning action after the completion is stable. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure schematic view of the automobile steering lock automatic test equipment provided by the application is shown.

[0025] Figure 2 The structure schematic view of the automobile steering lock automatic test equipment provided by the application is shown. Figure 1 The enlarged schematic view of A in the figure is shown.

[0026] Figure 3 The enlarged schematic view of B in the figure is shown. Figure 1 The enlarged schematic view of B in the figure is shown.

[0027] Figure 4 The structure schematic view of the automobile steering lock automatic test equipment provided by the application is shown. Figure 1 The structure schematic view of the automobile steering lock automatic test equipment provided by the application is shown.

[0028] Figure 5 The enlarged schematic view of C in the figure is shown. Figure 4 The enlarged schematic view of C in the figure is shown.

[0029] Figure 6 The structure schematic view of the automobile steering lock automatic test equipment provided by the application is shown.

[0030] Figure 7 The connection schematic view of the pressure sensor, the servo motor, the torque sensor, the test plug and the PLC controller is shown.

[0031] Figure:

[0032] 1-test workbench; 101-linear sliding groove; 102-support moving block; 103-linear bidirectional screw; 104-servo motor; 105-moving plate support;

[0033] 2-steering lock main body; 201-wiring port; 202-flexible clamping plate; 203-mounting lug;

[0034] 3-position base; 301-rotary seat; 302-rotary column; 303-torque sensor; 304-X-axis slide rod; 305-passive slider; 306-linkage frame; 307-return spring;

[0035] 4-spreading arm; 401-clamping head; 402-driven shaft; 403-passive gear; 404-active sliding table; 405-active rack;

[0036] 5-linkage moving plate; 501-test plug;

[0037] 6-pressure sensor;

[0038] 7-PLC controller. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] Please refer to Figures 1-7 The present application provides the following embodiments:

[0041] An automatic test device for automobile steering assist lock, comprising a test workbench 1 and a steering assist lock body 2, a layout groove is formed in the top of the test workbench 1, and a positioning base 3 is fixedly installed at the center of the groove bottom of the layout groove, and a rotary seat 301 is slidably installed on the top of the positioning base 3, a rotary column 302 is rotatably installed on the top of the rotary seat 301, and a torque sensor 303 is installed at the lower end of the rotary column 302;

[0042] The steering assist lock body 2 is placed on the top of the test workbench 1, and a positioning opening is formed in the bottom of the steering assist lock body 2, and a detection opening adapted to the rotary column 302 is formed in the middle of the positioning opening, i.e. the rotary column 302 is located directly below the detection opening;

[0043] Two symmetrical spreading arms 4 are movably installed in the layout groove, and clamping heads 401 are fixedly installed on the spreading arms 4, the moving directions of the two spreading arms 4 are opposite, and the spreading arms 4 are located obliquely above the positioning base 3;

[0044] A wiring port 201 is fixedly installed on the left side of the steering assist lock body 2, a linkage moving plate 5 is movably installed on the test workbench 1, a test plug 501 is fixedly installed on the linkage moving plate 5, and the test plug 501 is arranged at the same height as the wiring port 201.

[0045] Specific, the side wall of the local groove and the positioning base 3 are fixedly installed with X shaft slide rod 304, and the two X shaft slide rods 304 are slidably installed with passive sliding block 305, the two passive sliding blocks 305 are located on the two sides of the positioning base 3, the X shaft slide rod 304 is sleeved with reset spring 307, that is, the reset spring 307 is fixedly connected between the passive sliding block 305 and the positioning base 3, the top of the passive sliding block 305 and the side of the rotating seat 301 are fixedly installed with protrusions, the protrusions are hingedly connected with linkage frame 306, and the linkage frame 306 is located below the strutting arm 4.

[0046] Specific, two symmetrical driven shafts 402 are rotatably installed in the local groove, and the two strutting arms 4 are fixedly installed on the two driven shafts 402, the rotation directions of the two driven shafts 402 are opposite, the X shaft slide rod 304 is slidably installed with driving sliding table 404, the top of the driving sliding table 404 is fixedly installed with driving rack 405, the driven shaft 402 is fixedly installed with driven gear 403, and the driven gear 403 is in meshing transmission with the driving rack 405.

[0047] Specific, the right side of the top of the test workbench 1 is fixedly installed with PLC controller 7, and the test plug 501 and the torque sensor 303 are electrically connected with the PLC controller 7.

[0048] Specific, the groove bottom of the layout groove is provided with linear sliding groove 101, and linear bidirectional screw rod 103 is rotatably installed in the linear sliding groove 101, two support moving blocks 102 are threadedly installed on the linear bidirectional screw rod 103, and the support moving blocks 102 are slidably installed in the linear sliding groove 101, the top end of the support moving block 102 is fixedly connected with the bottom of the driving sliding table 404, the test workbench 1 is fixedly installed with servo motor 104, and the output end of the servo motor 104 is fixedly connected with the end portion of the linear bidirectional screw rod 103.

[0049] Specific, the left side of the top of the test workbench 1 is provided with displacement port communicated with the linear sliding groove 101, the linkage moving plate 5 moves in the displacement port, the moving plate support 105 is threadedly installed on the linear bidirectional screw rod 103, and the moving plate support 105 is slidably installed in the linear sliding groove 101, the bottom of the linkage moving plate 5 is fixedly connected with the top of the moving plate support 105, the right side inner wall of the displacement port is fixedly installed with pressure sensor 6, and the pressure sensor 6 and the servo motor 104 are electrically connected with the PLC controller 7, when the test plug 501 is completely inserted into the wiring port 201, the right side of the linkage moving plate 5 abuts against the pressure sensor 6.

[0050] Specific, a plurality of installation lugs 203 are fixedly installed on the steering assist lock body 2, which facilitates the installation of the steering assist lock body 2, the side wall of the positioning port is fixedly installed with flexible clamping plate 202, which can be deformed under the pressing of the clamping head 401.

[0051] The specific implementation of the embodiment is that the automobile steering assist lock is placed on the test workbench 1, the clamping heads 401 on the two spreading arms 4 are aligned with the two positioning openings, and the rotating insertion column 302 is aligned with the detection opening to confirm the test position of the steering assist lock body 2. During the test, the servo motor 104 is started, the servo motor 104 drives the linear bidirectional screw rod 103 to rotate, and then the two support moving blocks 102 move towards each other in the linear sliding groove 101, so that the two driving sliding tables 404 move towards each other. Due to the meshing transmission of the driving rack 405 and the driven gear 403, the driven gear 403 drives the driven shaft 402 to rotate by a certain angle, so that the spreading arm 4 drives the clamping head 401 to swing into the positioning opening and clamp on the flexible clamping plate 202, so that the steering assist lock body 2 is preliminarily positioned, and the accuracy of subsequent tests is ensured.

[0052] When the driving sliding table 404 continues to move, it will touch and press the driven block 305, so that the driven block 305 slides along the X-axis sliding rod 304. At this time, the return spring 307 is compressed, and under the pushing of the linkage frame 306, the rotating seat 301 moves linearly upwards, so that the rotating insertion column 302 is lifted and inserted into the detection opening of the steering assist lock body 2, and the clamping head 401 clamps the flexible clamping plate 202, so that the automobile steering assist lock can be tested. The torque sensor 303 on the rotating insertion column 302 can participate in the test, and the torque sensor 303 is connected with the PLC controller 7, so as to realize real-time feedback of the test situation and result, abandon the traditional fixed mode, and achieve better use effect.

[0053] During the rotation of the servo motor 104 and the linear bidirectional screw rod 103, the moving plate support 105 will move synchronously with the left support moving block 102. When the driving sliding table 404 and the driven block 305 just contact, the moving plate support 105 drives the linkage moving plate 5 to move, and the test plug 501 is aligned with and close to the entrance of the wiring port 201. When the support moving block 102 continues to drive the driving sliding table 404 to move, the test plug 501 is completely inserted into the wiring port 201 on the steering assist lock body 2, realizing the synchronization of the two actions of automatic plugging and automatic positioning, reducing the operation steps, and providing subsequent tests for the automobile steering assist lock.

[0054] When the test plug 501 is inserted into the wiring port 201, the right side of the linkage moving plate 5 presses the pressure sensor 6, the pressure sensor 6 transmits a signal to the PLC controller 7, the PLC controller 7 controls the servo motor 104 to stop working, and then the support moving block 102 and the moving plate support 105 are not moving, so that the automobile steering assist lock is automatically plugged and positioned.

[0055] In the description of the specification, reference to "one embodiment", "an example", "a specific example" or the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example", "a specific example" or the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0056] The preferred embodiments of the application disclosed above are only to help explain the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the contents of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic testing device for a vehicle power steering lock, characterized by: The invention comprises a test bench (1) and a power steering lock body (2), wherein a layout groove is provided on the top of the test bench (1), a positioning base (3) is fixedly installed at the center of the bottom of the layout groove, a rotating base (301) is slidably installed on the top of the positioning base (3), a rotating plug (302) is rotatably installed on the top of the rotating base (301), and a torque sensor (303) is installed at the lower end of the rotating plug (302); The power steering lock body (2) is placed on the top of the test bench (1), and a positioning opening is provided at the bottom of the power steering lock body (2), and a detection opening adapted to the rotating plug post (302) is provided in the middle of the positioning opening, that is, the rotating plug post (302) is located directly below the detection opening; Two symmetrically arranged spreading arms (4) are movably mounted in the layout groove, and a clamping head (401) is fixedly mounted on the spreading arms (4). The two spreading arms (4) move in opposite directions, and the spreading arms (4) are located obliquely above the positioning base (3). A wiring port (201) is fixedly installed on the left side of the power steering lock body (2); a linkage shift plate (5) is movably installed on the test bench (1); and a test plug (501) is fixedly installed on the linkage shift plate (5); the test plug (501) is arranged at the same height as the wiring port (201).

2. The automatic testing equipment for automobile power steering lock according to claim 1, characterized in that: An X-axis slide bar (304) is fixedly installed between the side wall of the local groove and the positioning base (3), and a passive slider (305) is slidably installed on the two X-axis slide bars (304), and the two passive sliders (305) are respectively located on both sides of the positioning base (3). A reset spring (307) is sleeved on the X-axis slide bar (304), that is, the reset spring (307) is fixedly connected between the passive slider (305) and the positioning base (3). A protrusion is fixedly installed on the top of the passive slider (305) and the side of the rotating seat (301), and a linkage frame (306) is hinged on the protrusion, and the linkage frame (306) is located below the spreading arm (4).

3. The automatic testing equipment for the power steering lock of an automobile according to claim 2, characterized in that: Two symmetrically arranged driven shafts (402) are rotatably mounted in the partial groove, and the two spreading arms (4) are respectively fixedly mounted on the two driven shafts (402), and the rotation directions of the two driven shafts (402) are opposite.

4. The automatic testing equipment for the power steering lock of an automobile according to claim 3, characterized in that: An active slide (404) is slidably mounted on the X-axis slide bar (304), an active rack (405) is fixedly mounted on the top of the active slide (404), a passive gear (403) is fixedly mounted on the driven shaft (402), and the passive gear (403) is meshed with the active rack (405) for transmission.

5. The automatic testing equipment for the power steering lock of an automobile according to claim 4, characterized in that: A PLC controller (7) is fixedly installed on the right side of the top of the test bench (1), and the test plug (501) and the torque sensor (303) are electrically connected to the PLC controller (7).

6. The automatic testing equipment for the power steering lock of an automobile according to claim 5, characterized in that: A linear slide groove (101) is provided at the bottom of the layout groove, and a linear bidirectional screw rod (103) is rotatably installed in the linear slide groove (101), two supporting moving blocks (102) are threadedly installed on the linear bidirectional screw rod (103), and the supporting moving blocks (102) are slidably installed in the linear slide groove (101), the top end of the supporting moving block (102) is fixedly connected to the bottom of the active slide table (404), and a servo motor (104) is fixedly installed on the test bench (1), and the output end of the servo motor (104) is fixedly connected to the end of the linear bidirectional screw rod (103).

7. The automatic testing equipment for automobile power steering lock according to claim 6, characterized in that: A displacement port communicating with the linear slide (101) is provided on the left side of the top of the test bench (1); the linkage shift plate (5) moves in the displacement port; a shift plate support (105) is threadedly mounted on the linear bidirectional screw (103); and the shift plate support (105) is slidably mounted in the linear slide (101); the bottom of the linkage shift plate (5) is fixedly connected to the top of the shift plate support (105); a pressure sensor (6) is fixedly mounted on the right inner wall of the displacement port; and the pressure sensor (6) and the servo motor (104) are both electrically connected to the PLC controller (7).

8. The automatic testing equipment for automobile power steering lock according to claim 7, characterized in that: When the test plug (501) is fully inserted into the wiring port (201), the right side of the linkage shift plate (5) abuts against the pressure sensor (6).

9. The automatic testing equipment for automobile power steering lock according to claim 7, characterized in that: A plurality of mounting lugs (203) are fixedly mounted on the steering power lock body (2), and a flexible splint (202) is fixedly mounted on the side wall of the positioning opening.

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