Electric steering column assembly testing fixture

Abstract

The utility model relates to the technical field of automobile parts, in particular to an electric steering column assembly testing fixture, which comprises a bottom plate (1). One end of the bottom plate (1) is provided with a lower support detection structure, and the other end of the bottom plate (1) is provided with a combination switch detection structure and an upper shaft detection structure. An upper bracket detection structure is arranged between the lower bracket detection structure and the combined switch detection structure; the top of the upper support detection structure is provided with a shield hole detection structure. One end of the electric steering column assembly (101) is arranged on the lower bracket detection structure, and the other end of the electric steering column assembly (101) is arranged on the combined switch detection structure; the electric steering column assembly (101) is arranged between the upper bracket detection structure and the shield hole detection structure; the device can detect the size of each position of the electric steering column assembly, can ensure that the product size meets the design requirement, and realizes comprehensive detection.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically, to an inspection tool for an electric power steering column assembly. Background Technology

[0002] With the development of automotive electronic control technology, electric power steering columns have become standard equipment in A0-class and A-class passenger cars, and are also found in economy SUVs (Sports Utility Vehicles) and MPVs (Multi-Purpose Vehicles). The electric power steering column assembly provides steering assistance to the driver, enhancing driving safety and enjoyment. Simultaneously, the electric power steering column assembly is also a structural component, with parts such as combination switches, wiring harnesses, and covers also fixed to it. Therefore, after the electric power steering column is manufactured, it undergoes comprehensive testing before packaging and warehousing to ensure that the product dimensions meet design requirements and prevent non-compliance during customer vehicle installation. Current inspection tools cannot simultaneously perform high-precision testing of the dimensions of all positions on the electric power steering column.

[0003] The applicant discovered through a search that Chinese patent document with publication number 208579698U, published on March 5, 2019, discloses a vacuum booster tube connection pipeline assembly inspection fixture; the fixture includes a base plate, a positioning seat, positioning detection pins, and a positioning plate. The positioning seat is fixed on the base plate, and the positioning seat has a contour groove that mates with the product being inspected. A positioning plate for positioning the product is fixed inside the contour groove of the positioning seat. The width of the contour groove of the positioning seat is greater than the width of the product. Two positioning detection pins for inspecting the pipe openings at both ends of the product are slidably connected on the base plate; this device also cannot solve the above-mentioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide an electric power steering column assembly inspection tool that can comprehensively inspect the dimensions of each position of the electric power steering column. Utility Model Content

[0005] The purpose of this invention is to provide an electric power steering column assembly inspection tool that can comprehensively inspect the dimensions of each position of the electric power steering column.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an electric steering column assembly inspection fixture, including a base plate; a lower support detection structure is provided at one end of the base plate, and a combination switch detection structure and an upper shaft detection structure are respectively provided at the other end of the base plate; an upper support detection structure is provided between the lower support detection structure and the combination switch detection structure; a protective cover hole detection structure is provided at the top of the upper support detection structure; one end of the electric steering column assembly is provided on the lower support detection structure, and the other end of the electric steering column assembly is provided on the combination switch detection structure; and the electric steering column assembly is located between the upper support detection structure and the protective cover hole detection structure.

[0007] The lower support detection structure includes a lower support detection seat; the lower support detection seat is provided with a lower support detection pin; the electric steering column assembly is disposed on the lower support detection seat, and the electric steering column assembly is connected to the lower support detection pin.

[0008] The lower bracket detection seat is provided with a mounting groove; baffles are provided on both sides of the mounting groove; detection pin mounting holes are provided on the baffles; the lower bracket detection pin is provided in the mounting groove, and the two ends of the lower bracket detection pin are respectively connected to the detection pin mounting holes; the bottom of the electric steering column assembly is provided in the mounting groove; the bottom of the electric steering column assembly is provided with a steering column lower fixing hole; the lower bracket detection pin is inserted into the steering column lower fixing hole.

[0009] The combination switch detection structure includes a combination switch plate detection block; the combination switch plate detection block is provided with a slot and a combination switch plate detection pin respectively; the electric steering column assembly includes an upper steering shaft and a combination switch plate; the upper steering shaft is disposed in the slot; the combination switch plate is connected to the combination switch plate detection pin.

[0010] The steering upper shaft is connected to an upper shaft bearing; the combination switch plate is provided with a combination switch plate hole; the upper shaft bearing is located in the slot; the combination switch plate detection block is provided with a detection pin connection hole; the detection pin connection holes are respectively located on both sides of the slot; the combination switch plate detection pin is connected to the detection pin connection hole, and the combination switch plate detection pin is connected to the combination switch plate hole.

[0011] The upper shaft detection structure includes an upper shaft detection plate; the upper shaft detection plate is disposed on one side of the combination switch plate detection block; the upper shaft detection plate is provided with a support boss; the steering upper shaft is disposed on the support boss.

[0012] The upper bracket detection structure includes an upper bracket detection seat; the upper bracket detection seat is located between the lower bracket detection seat and the combined switch plate detection block; the upper bracket detection seat is provided with positioning protrusions; the positioning protrusions are respectively located at both ends of the upper bracket detection seat; the bottom of the electric steering column assembly is provided with an angle adjustment bracket; the angle adjustment bracket is provided with positioning holes; the positioning protrusions are located in the positioning holes.

[0013] The upper bracket detection seat is provided with a protective cover hole detection seat on one side; the protective cover hole detection structure includes a support rod; one end of the support rod is connected to the protective cover hole detection seat; the other end of the support rod is provided with a protective cover hole detection pin; the protective cover hole detection pin is connected to the electric steering column assembly.

[0014] The top of the protective cover hole detection seat is provided with a rotating groove; a rotating shaft is provided in the rotating groove; one end of the support rod is connected to the rotating shaft; the other end of the support rod is provided with a support rod pin hole; the top of the electric steering column assembly is provided with a protective cover bracket hole; the protective cover hole detection pin is provided in the support rod pin hole, and the protective cover hole detection pin is connected to the protective cover bracket hole.

[0015] The upper support detection seat is provided with quick-clamp bases on both sides; quick-clamps are provided on the quick-clamp bases; the quick-clamps are abutted against the angle adjustment bracket; a fixture nameplate is provided on the top of the base plate; and support feet are provided on the bottom of the base plate.

[0016] The beneficial effects of this application are as follows:

[0017] The lower bracket detection structure and upper shaft detection structure of this application work together to detect the overall length dimension of the electric power steering column assembly. The lower bracket detection structure can detect the width dimension of the lower fixing point of the electric power steering column assembly and the inner diameter dimension of the lower fixing hole of the steering column. The combination switch detection structure can detect the position length dimension of the combination switch plate and the inner diameter dimension and perpendicularity of the combination switch plate hole. The upper shaft detection structure can detect the position dimension of the upper steering shaft. The upper bracket detection structure can detect the position dimensions of the two mounting points of the electric power steering column assembly, and simultaneously position the angle adjustment bracket to ensure that it leaves the factory in the designed state. The protective cover hole detection structure can detect the inner diameter, perpendicularity and position dimension of the protective cover bracket hole. This device can simultaneously detect the dimensions of each position of the electric power steering column assembly with high detection accuracy, ensuring that the product dimensions meet the design requirements, realizing comprehensive inspection and avoiding unqualified products during vehicle installation. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the inspection fixture for the electric power steering column assembly.

[0020] Figure 2 This is a schematic diagram of the working state of the inspection tool for the electric power steering column assembly.

[0021] Figure 3 for Figure 2 The diagram shown is a side view of the working state of this application.

[0022] Figure 4 for Figure 2 The diagram shown is a top view of the working state of this application.

[0023] The markings in the above figures are all:

[0024] The diagram is marked as follows:

[0025] 1. Base plate, 101. Electric power steering column assembly,

[0026] 2. Lower bracket detection seat, 201. Mounting slot, 202. Baffle, 203. Detection pin mounting hole, 204. Lower bracket detection pin.

[0027] 3. Lower fixing hole of the steering column,

[0028] 4. Combination switchboard detection block, 401, slot, 402, detection pin connection hole.

[0029] 5. Test pins on the combination switchboard.

[0030] 6. Steering upper shaft, 601. Combination switch board, 602. Upper shaft bearing.

[0031] 7. Upper shaft detection plate, 701, support boss.

[0032] 8. Upper bracket detection seat, 801. Positioning protrusion, 802. Angle adjustment bracket, 803. Positioning hole.

[0033] 9. Protective cover hole detection seat; 901. Support rod; 902. Protective cover hole detection pin; 903. Rotating groove; 904. Rotating shaft; 905. Support rod pin hole; 906. Protective cover bracket hole.

[0034] 10. Quick-clamp base,

[0035] 11. Quick clamp; 111. Inspection tool nameplate; 112. Support leg. Detailed Implementation

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0037] Figure 1 The electric steering column assembly inspection fixture shown includes a base plate 1; one end of the base plate 1 is provided with a lower support inspection structure, and the other end of the base plate 1 is provided with a combination switch inspection structure and an upper shaft inspection structure; an upper support inspection structure is provided between the lower support inspection structure and the combination switch inspection structure; a protective cover hole inspection structure is provided on the top of the upper support inspection structure; one end of the electric steering column assembly 101 is provided on the lower support inspection structure, and the other end of the electric steering column assembly 101 is provided on the combination switch inspection structure; and the electric steering column assembly 101 is located between the upper support inspection structure and the protective cover hole inspection structure.

[0038] The lower bracket detection structure and upper shaft detection structure of this application work together to detect the overall length of the electric power steering column assembly 101; the lower bracket detection structure can detect the width of the lower fixing point of the electric power steering column assembly 101 and the inner diameter of the lower fixing hole of the steering column; the combination switch detection structure can detect the position length of the combination switch plate and the inner diameter and perpendicularity of the combination switch plate hole; the upper shaft detection structure can detect the position dimensions of the upper steering shaft; the upper bracket detection structure can detect the position dimensions of the two mounting points of the electric power steering column assembly, and simultaneously position the angle adjustment bracket to ensure that it leaves the factory in the designed state; the protective cover hole detection structure can detect the inner diameter, perpendicularity, and position dimensions of the protective cover bracket hole; this device can simultaneously detect the position dimensions of the electric power steering column assembly 101 with high detection accuracy, ensuring that the product dimensions meet the design requirements, achieving comprehensive inspection, and avoiding product defects during vehicle installation.

[0039] The lower support detection structure includes a lower support detection seat 2; a lower support detection pin 204 is provided on the lower support detection seat 2; an electric steering column assembly 101 is provided on the lower support detection seat 2, and the electric steering column assembly 101 is connected to the lower support detection pin 204.

[0040] The lower support detection seat 2 has a U-shaped structure; the lower support detection seat 2 is fixedly connected to one end of the top of the base plate 1; the lower support detection pin 204 is movably connected to the lower support detection seat 2.

[0041] The lower bracket testing seat 2 is provided with a mounting groove 201; both sides of the mounting groove 201 are provided with baffles 202; the baffles 202 are provided with testing pin mounting holes 203; the lower bracket testing pin 204 is provided in the mounting groove 201, and both ends of the lower bracket testing pin 204 are respectively connected to the testing pin mounting holes 203; the bottom of the electric steering column assembly 101 is provided in the mounting groove 201; the bottom of the electric steering column assembly 101 is provided with a steering column lower fixing hole 3; the lower bracket testing pin 204 is inserted into the steering column lower fixing hole 3.

[0042] The bottom of the electric power steering column assembly 101 is arranged in the installation groove 201. Observe the distances between the observation baffle 202 and both sides of the bottom of the electric power steering column assembly, so as to be able to detect whether the width dimension of the lower fixing point of the electric power steering column is qualified; the lower bracket detection pin 204 is in clearance fit with the detection pin mounting hole 203 and can be freely withdrawn and inserted from the lower bracket detection seat 2; when the lower bracket detection pin 204 is inserted into the lower fixing hole 3 of the steering column, it can detect whether the inner diameter dimension of the lower fixing hole 3 of the steering column is qualified.

[0043] The combination switch detection structure includes the combination switch board detection block 4; the combination switch board detection block 4 is respectively provided with a card slot 401 and a combination switch board detection pin 5; the electric power steering column assembly 101 includes a steering upper shaft 6 and a combination switch board 601; the steering upper shaft 6 is arranged in the card slot 401; the combination switch board 601 is connected with the combination switch board detection pin 5.

[0044] The combination switch board detection block 4 is fixedly connected to one end of the top of the bottom plate 1; the cross section of the card slot 401 is "L" shaped; the card slot 401 is a through slot and is arranged at the top of the combination switch board detection block 4; the combination switch board detection pin 5 is arranged on both sides of the combination switch board detection block 4 and is movably connected with the combination switch board detection block 4.

[0045] The steering upper shaft 6 is connected with an upper shaft bearing 602; the combination switch board 601 is provided with a combination switch board hole; the upper shaft bearing 602 is arranged in the card slot 401; the combination switch board detection block 4 is provided with a detection pin connection hole 402; the detection pin connection holes 402 are respectively arranged on both sides of the card slot 401; the combination switch board detection pin 5 is connected in the detection pin connection hole 402 and the combination switch board detection pin 5 is connected with the combination switch board hole.

[0046] The upper shaft bearing 602 is arranged in the card slot 401 to achieve positioning, so as to be able to detect whether the position length dimension of the combination switch board 601 is qualified; the combination switch board detection pin 5 is in clearance fit with the detection pin connection hole 402, so that the combination switch board detection pin 5 can flexibly perform axial movement in the detection pin connection hole 402; the combination switch board detection pin 5 is in fit with the combination switch board hole, and can detect whether the inner diameter dimension and perpendicularity of the combination switch board hole are qualified.

[0047] The upper shaft detection structure includes an upper shaft detection plate 7; the upper shaft detection plate 7 is arranged on one side of the combination switch board detection block 4; the upper shaft detection plate 7 is provided with a support boss 701; the steering upper shaft 6 is arranged on the support boss 701.

[0048] The upper shaft detection plate 7 is fixedly connected to one end of the top of the bottom plate 1; the support boss 701 is arranged on one side of the upper shaft detection plate 7; the steering upper shaft 6 is arranged on the top of the support boss 701, and the end of the steering upper shaft 6 abuts against the upper shaft detection plate 7, so as to be able to detect the position dimension of the steering upper shaft 6.

[0049] The upper bracket detection structure includes an upper bracket detection seat 8; the upper bracket detection seat 8 is located between the lower bracket detection seat 2 and the combination switch plate detection block 4; the upper bracket detection seat 8 is provided with a positioning protrusion 801; the positioning protrusion 801 is respectively located at both ends of the upper bracket detection seat 8; the bottom of the electric steering column assembly 101 is provided with an angle adjustment bracket 802; the angle adjustment bracket 802 is provided with a positioning hole 803; the positioning protrusion 801 is located in the positioning hole 803.

[0050] The upper bracket testing seat 8 is a square block; the upper bracket testing seat 8 is located in the middle of the base plate 1; the positioning protrusion 801 is fixedly connected to the top of the upper bracket testing seat 8; the upper bracket testing seat 8 has positioning protrusions 801 on both sides; the angle adjustment bracket 802 is fixedly connected to the bottom of the electric steering column assembly 101; the angle adjustment bracket 802 has positioning holes 803 on both sides; the positioning protrusion 801 cooperates with the positioning hole 803 to detect whether the position and size of the two mounting points on the angle adjustment bracket 802 are qualified, and at the same time, it can position the angle adjustment bracket 802 to ensure that it leaves the factory in the designed state.

[0051] The upper bracket detection seat 8 has a protective hole detection seat 9 on one side; the protective hole detection structure includes a support rod 901; one end of the support rod 901 is connected to the protective hole detection seat 9; the other end of the support rod 901 is provided with a protective hole detection pin 902; the protective hole detection pin 902 is connected to the electric steering column assembly 101.

[0052] The protective cover hole detection seat 9 is fixedly connected to the base plate 1; one end of the support rod 901 is hinged to the top of the protective cover hole detection seat 9; the other end of the support rod 901 is movably connected to the protective cover hole detection pin 902.

[0053] The top of the protective cover hole detection seat 9 is provided with a rotating groove 903; a rotating shaft 904 is provided in the rotating groove 903; one end of the support rod 901 is connected to the rotating shaft 904; the other end of the support rod 901 is provided with a support rod pin hole 905; the top of the electric steering column assembly 101 is provided with a protective cover bracket hole 906; a protective cover hole detection pin 902 is provided in the support rod pin hole 905, and the protective cover hole detection pin 902 is connected to the protective cover bracket hole 906.

[0054] The end of the support rod 901 is provided with a through hole, and the rotating shaft 904 is connected in the through hole, which enables the support rod 901 to rotate flexibly on the protective cover hole detection seat 9, thereby enabling the support rod 901 to be rotated 180 degrees so that the product to be inspected can be put in and taken out; the protective cover hole detection pin 902 is clearance-fitted with the support rod pin hole 905; at the same time, the protective cover hole detection pin 902 is fitted with the protective cover bracket hole 906, which can detect whether the inner diameter, perpendicularity and position dimensions of the protective cover bracket hole 906 are qualified.

[0055] The upper support inspection seat 8 is provided with quick clamp bases 10 on both sides; quick clamps 11 are provided on the quick clamp bases 10; quick clamps 11 are abutted against the angle adjustment bracket 802; the top of the base plate 1 is provided with a fixture nameplate 111; the bottom of the base plate 1 is provided with a support foot 112.

[0056] Quick-clamp bases 10 are respectively located on both sides of the upper support inspection seat 8; quick-clamp 11 is fixedly connected to the top of quick-clamp base 10; quick-clamp 11 includes quick-clamp seat; quick-clamp seat is provided with a moving handle; the moving handle is connected to a pressure block; the pressure block presses against the top of the angle adjustment bracket 802, pressing the angle adjustment bracket 802 against the top of the upper support inspection seat 8 to achieve fixation; the inspection fixture nameplate 111 is engraved with information such as the inspection fixture model, manufacturing time, and validity period; the support feet 112 can support the inspection fixture and facilitate transportation.

[0057] The specific workflow of this utility model is as follows:

[0058] Install the lower bracket detection seat 2, the combination switch plate detection block 4, the upper shaft detection plate 7, the upper bracket detection seat 8, and the protective cover hole detection seat 9 on the base plate 1 according to the production standard and the preset standard installation position;

[0059] Remove the lower bracket test pin 204, the protective cover hole test pin 902, and the combination switch plate test pin 5; flip the support rod 901 to the outside; open the quick clamp 11; place the electric steering column assembly 101 to be tested into the fixture; insert the lower bracket test pin 204 and the combination switch plate test pin 5; flip the support rod 901 back above the part to be tested and insert the protective cover hole test pin 902; lock the quick clamp 11; lock the adjustment handle of the electric steering column assembly 101 and visually inspect it.

[0060] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A tooling for inspecting electric power steering column assemblies, characterized in that: Includes a base plate (1); one end of the base plate (1) is provided with a lower support detection structure, and the other end of the base plate (1) is provided with a combination switch detection structure and an upper shaft detection structure respectively; an upper support detection structure is provided between the lower support detection structure and the combination switch detection structure; a protective cover hole detection structure is provided on the top of the upper support detection structure; one end of the electric steering column assembly (101) is provided on the lower support detection structure, and the other end of the electric steering column assembly (101) is provided on the combination switch detection structure; and the electric steering column assembly (101) is provided between the upper support detection structure and the protective cover hole detection structure.

2. A tooling for inspecting an electric power steering column assembly according to claim 1, characterized in that: The lower support detection structure includes a lower support detection seat (2); the lower support detection seat (2) is provided with a lower support detection pin (204); the electric steering column assembly (101) is provided on the lower support detection seat (2), and the electric steering column assembly (101) is connected to the lower support detection pin (204).

3. A tooling for inspecting an electric power steering column assembly according to claim 2, characterized in that: The lower bracket detection seat (2) is provided with a mounting groove (201); both sides of the mounting groove (201) are provided with baffles (202); the baffles (202) are provided with detection pin mounting holes (203); the lower bracket detection pin (204) is provided in the mounting groove (201), and both ends of the lower bracket detection pin (204) are respectively connected to the detection pin mounting holes (203); the bottom of the electric steering column assembly (101) is provided in the mounting groove (201); the bottom of the electric steering column assembly (101) is provided with a steering column lower fixing hole (3); the lower bracket detection pin (204) is inserted into the steering column lower fixing hole (3).

4. A tooling for inspecting an electric power steering column assembly according to any one of claims 2-3, characterized in that: The combined switch detection structure includes a combined switch plate detection block (4); the combined switch plate detection block (4) is provided with a slot (401) and a combined switch plate detection pin (5); the electric steering column assembly (101) includes a steering upper shaft (6) and a combined switch plate (601); the steering upper shaft (6) is located in the slot (401); the combined switch plate (601) is connected to the combined switch plate detection pin (5).

5. A tooling for inspecting an electric power steering column assembly according to claim 4, characterized in that: The steering upper shaft (6) is connected to an upper shaft bearing (602); the combination switch plate (601) is provided with a combination switch plate hole; the upper shaft bearing (602) is located in the slot (401); the combination switch plate detection block (4) is provided with a detection pin connection hole (402); the detection pin connection holes (402) are respectively located on both sides of the slot (401); the combination switch plate detection pin (5) is connected in the detection pin connection hole (402), and the combination switch plate detection pin (5) is connected to the combination switch plate hole.

6. A tooling for inspecting an electric power steering column assembly according to claim 5, characterized in that: The upper shaft detection structure includes an upper shaft detection plate (7); the upper shaft detection plate (7) is located on one side of the combination switch plate detection block (4); the upper shaft detection plate (7) is provided with a support boss (701); the steering upper shaft (6) is located on the support boss (701).

7. A tooling for inspecting an electric power steering column assembly according to any one of claims 5-6, characterized in that: The upper bracket detection structure includes an upper bracket detection seat (8); the upper bracket detection seat (8) is located between the lower bracket detection seat (2) and the combined switch plate detection block (4); the upper bracket detection seat (8) is provided with a positioning protrusion (801); the positioning protrusion (801) is respectively located at both ends of the upper bracket detection seat (8); the bottom of the electric steering column assembly (101) is provided with an angle adjustment bracket (802); the angle adjustment bracket (802) is provided with a positioning hole (803); the positioning protrusion (801) is located in the positioning hole (803).

8. A tooling for inspecting an electric power steering column assembly according to claim 7, characterized in that: The upper bracket detection seat (8) is provided with a protective hole detection seat (9) on one side; the protective hole detection structure includes a support rod (901); one end of the support rod (901) is connected to the protective hole detection seat (9); the other end of the support rod (901) is provided with a protective hole detection pin (902); the protective hole detection pin (902) is connected to the electric steering column assembly (101).

9. A tooling for inspecting an electric power steering column assembly according to claim 8, characterized in that: The top of the protective cover hole detection seat (9) is provided with a rotating groove (903); a rotating shaft (904) is provided in the rotating groove (903); one end of the support rod (901) is connected to the rotating shaft (904); the other end of the support rod (901) is provided with a support rod pin hole (905); the top of the electric steering column assembly (101) is provided with a protective cover bracket hole (906); the protective cover hole detection pin (902) is provided in the support rod pin hole (905), and the protective cover hole detection pin (902) is connected to the protective cover bracket hole (906).

10. A tooling for inspecting an electric power steering column assembly according to any one of claims 8-9, characterized in that: The upper support detection seat (8) is provided with quick clamp bases (10) on both sides; quick clamps (11) are provided on the quick clamp bases (10); the quick clamps (11) are abutted against the angle adjustment bracket (802); the top of the base plate (1) is provided with a fixture nameplate (111); the bottom of the base plate (1) is provided with a support foot (112).

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