Electronic shift skeleton assembly testing fixture

Abstract

The utility model discloses electronic shift skeleton assembly is with gauge, including gauge bottom plate, be provided with a plurality of positioning datum block on the gauge bottom plate, still be provided with the turnover mechanism one, turnover mechanism two and sliding mechanism of all electron shift skeleton assembly work piece hole position detection on the gauge bottom plate, the position of the hole position degree detection pin one set up on the turnover mechanism one can be adjusted horizontally, the inclination of the inclined hole detection pin set up on the sliding mechanism can be adjusted. The utility model discloses through locking adjusting part changes the vertical rod length of rotating lever, the position of two hole position degree detection pin one also changes synchronously, can adapt to the hole position precision detection of different position, can utilize locking adjusting part locking after adjusting, similarly, utilize worm two to drive worm wheel two rotation, promote gauge platform to rotate around with the lower hinged pair of pull rod end lower side, change the inclination angle of two inclined hole detection pin, better be applicable to the detection of inclined hole of different position or inclination angle.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts inspection fixtures, specifically an inspection fixture for electronic shift frame assemblies. Background Technology

[0002] The electronic shift frame assembly is a component located in the center console of a car. It is a precision component installed inside the shift housing of the car's gear shifter. After its molding, it needs to be tested for various parameters such as hole position accuracy, end face position, and angle.

[0003] Traditional inspection methods for electronic shifter frames can only detect flat holes. Slanted holes require manual inspection using handheld fixtures, resulting in low efficiency and a high risk of missed detections. Furthermore, changes in product specifications can alter the positions of some holes or end faces, rendering existing fixtures without position adjustment capabilities unusable. Custom-made fixtures also increase manufacturing costs. For example, Chinese Patent Publication No. CN212133538U describes a fixture for the left front longitudinal beam front end outer plate assembly. This fixture includes a base plate with a product positioning mechanism, a positioning seat, a first flipping mechanism, a second flipping mechanism, a simulation block, and a hole diameter detection positioning seat. Both the positioning seat and the hole diameter detection positioning seat are located within the groove of the simulation block. The product positioning mechanism, positioning seat, and positioning pins fix the left front longitudinal beam front end outer plate to the inspection position on the base plate. The simulation block is used to check the edge shape of the outer plate for compliance. This application uses a product surface inspection block to check the upper surface shape of the outer plate for compliance. Hole detection blocks and hole detection pins are used to check the hole shape on the outer plate for compliance. The aperture of holes on the outer panel is checked using an aperture detection positioning seat. However, the positions of the detection holes and the surface detection positions are fixed in this solution and lack adjustment capabilities. It is only suitable for testing specific product models and cannot meet the testing needs after product specifications have changed.

[0004] Therefore, it is necessary to design a tooling for the electronic shift frame assembly to address the above problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a gauge for electronic shift frame assembly, so as to solve the problem mentioned in the background art that the gauge does not have an adjustment function, which makes it unsuitable for testing multiple products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An inspection fixture for an electronic shift frame assembly includes a fixture base plate. The fixture base plate is provided with several positioning reference blocks. The upper end of each positioning reference block is provided with a reference hole. Simulation blocks with similar shapes to the electronic shift frame assembly workpiece are arranged between the multiple positioning reference blocks. The fixture base plate is also provided with a flipping mechanism one, a flipping mechanism two, and a sliding mechanism for detecting the hole positions of the electronic shift frame assembly workpiece. The position of the hole position detection pin one provided on the flipping mechanism one can be adjusted horizontally, and the inclination angle of the inclined hole detection pin provided on the sliding mechanism can be adjusted.

[0007] The flipping mechanism includes an elevated base bolted to the base plate of the fixture, and a rotating seat connected to the top of the elevated base. A rotating rod is rotatably connected within the opening of the rotating seat. Both ends of the rotating rod are provided with hole position detection pins that penetrate the rotating rod and can elastically return to their original position. The vertical rod of the rotating rod can be adjusted in length to change the position of the hole position detection pins.

[0008] The vertical rod of the rotating rod includes a hollow rod portion rotatably connected to the opening of the rotating seat, and a movable portion inserted into the hollow rod portion for adjusting the overall length of the vertical rod by a locking adjustment portion. The movable portion is fixedly connected to the horizontal rod of the rotating rod.

[0009] The sliding mechanism includes a second raising base. A pull rod is slidably connected to a slotted section at the top of the second raising base. A fixture table is connected to the lower end of the pull rod via a lower hinge. A beveled hole detection pin, capable of elastically resetting relative to the fixture table, is slidably connected to the fixture table. A second worm gear is rotatably connected to the pull rod. The second worm gear extends into the pull rod and engages with a second worm wheel, capable of sliding relative to the pull rod. The end of the second worm wheel extends through the side end face of the pull rod and is slidably connected to the side of the fixture table via an upper hinge.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention changes the length of the vertical rod of the rotating rod by adjusting the locking mechanism, and the positions of the two hole position accuracy detection pins also change synchronously, which can adapt to the hole position accuracy detection at different positions. After adjustment, the self-locking characteristic of the locking mechanism can be used to fix the detection position of the hole position accuracy detection pin. Similarly, the worm gear drives the worm wheel to rotate, which pushes the inspection table to rotate around the lower hinge joint with the lower side of the end of the pull rod, changing the tilt angle of the two inclined hole detection pins, which is better suited for the detection of inclined holes at different positions or tilt angles. Attached Figure Description

[0011] Figure 1 This is a top view of the workpiece of the present invention with the electronic shift frame assembly installed. Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3This is a three-dimensional structural diagram of the flipping mechanism of this utility model. Figure 1 ; Figure 4 This is a three-dimensional structural diagram of the flipping mechanism of this utility model. Figure 2 ; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the distribution structure of the worm gear and worm wheel of this utility model; Figure 7 This is a three-dimensional structural diagram of the sliding mechanism of this utility model.

[0012] In the diagram: 1. Fixture base plate; 2. Positioning reference block; 201. Positioning pin; 3. Tilting mechanism one; 301. Heightening base one; 302. Rotary seat; 303. Rotating rod; 304. Hole position detection pin one; 305. Moving part; 306. Slide rail; 307. Worm gear one; 308. Worm wheel one; 309. Hollow rod part; 310. Rotation limit block; 4. Tilting mechanism two; 401. Heightening base three; 402. Swing rod; 403. Upper fixture 404. Lower gauge seat; 405. Hole position detection pin II; 5. Sliding mechanism; 501. Heightening base II; 502. Pull rod; 503. Pin; 504. Worm gear II; 505. Angled hole detection pin; 506. Hinge pair; 507. Gauge table; 508. Worm gear II; 509. Lower hinge pair; 510. Protractor; 6. Reference hole; 7. Go / no-go gauge; 8. Simulation block; 801. Inspection surface; 9. Electronic shift frame assembly workpiece. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figures 1-7As shown, the inspection fixture for the electronic shift frame assembly includes a fixture base plate 1. Multiple positioning reference blocks 2 are provided on the fixture base plate 1. The upper end of each positioning reference block 2 has several reference holes 6 that correspond to the hole positions on the electronic shift frame assembly workpiece 9. Positioning pins 201 are connected to the reference holes 6 via threaded connections. A go / no-go gauge 7 is also clamped and fixed on the fixture base plate 1. Simulation blocks 8, with shapes similar to the electronic shift frame assembly workpiece 9, are provided between the multiple positioning reference blocks 2. The simulation blocks 8 have a detection surface 801 for maintaining a 3mm gap between themselves and the electronic shift frame assembly workpiece 9 after installation. The fixture base plate 1 also includes a flipping mechanism 3, a flipping mechanism 4, and a sliding mechanism 5 for detecting the hole positions on the electronic shift frame assembly workpiece 9. The electronic shift frame assembly workpiece 9 to be inspected or the automated robot grips it above the fixture base plate 1. The entire fixture base plate 1 can be fixed by using the positioning reference block 2, the matching reference hole 6, and the positioning pin 201. That is, the reference hole 6 is aligned with the hole on the electronic shift frame assembly workpiece 9, and the positioning pin 201 is screwed in, thereby fixing the electronic shift frame assembly workpiece 9, which facilitates the subsequent hole and surface inspection.

[0015] The flipping mechanism 3 includes an elevated base 301 bolted to the base plate 1 of the inspection fixture, and a rotating seat 302 connected to the top of the elevated base 301. A rotating rod 303 is rotatably connected within the opening of the rotating seat 302. Hole position detection pins 304, which penetrate the rotating rod 303 and can elastically return to their original position, are provided at both ends of the rotating rod 303. The flipping mechanism 3 can adjust the overall length of the vertical rod according to actual inspection needs. This vertical rod is the part of the rotating rod 303 rotatably connected to the rotating seat 302. By adjusting the length, the detection position of the hole position detection pins 304 can be adjusted, making it better suited for hole position detection of electronic shift frame assemblies 9 of different specifications.

[0016] The hole position detection pin 304 of this utility model uses a conventional spring to cooperate with the limiting step of the corresponding hole on the rotating rod 303, so that after the hole position detection pin 304 is pressed and the external force is removed, elastic reset is achieved. This is a well-known technology in the field and is not a technical improvement point of this utility model.

[0017] like Figure 4 As shown, the rotating rod 303 is T-shaped, and the length of the vertical rod of the rotating rod 303 can be adjusted to change the position of the hole position detection pin 304.

[0018] Specifically, such as Figure 5As shown, the vertical rod of the rotating rod 303 includes a hollow rod portion 309 rotatably connected to the opening of the rotating seat 302, and a movable portion 305 inserted into the hollow rod portion 309 and adjusted by the locking adjustment portion to change the overall length of the vertical rod. The movable portion 305 is fixedly connected to the horizontal rod of the rotating rod 303. The locking adjustment portion of this utility model has a self-locking function, that is, after adjusting the length of the movable portion 305 inserted into the hollow rod portion 309 by the locking adjustment portion, the overall length of the vertical rod can be changed, and the position can be self-locked by the locking adjustment portion after adjustment.

[0019] like Figure 4 and Figure 5 As shown, the hollow rod portion 309 has a rotation limiting block 310, which is rotatably connected to the opening of the rotating seat 302. One end of the rotation limiting block 310 has a rounded corner to ensure it can rotate around the opening of the rotating seat 302. When the rotation limiting block 310 is rotated to a horizontal position, its lower end face is in contact with the bottom end face of the opening of the rotating seat 302, thus achieving a limiting position. When the electronic shift frame assembly workpiece 9 needs to be placed, the rotating rod 303 is rotated. After the electronic shift frame assembly workpiece 9 is placed and fixed, the rotation limiting block 310 is rotated to a horizontal position, which then pushes the hole position detection pin 304 to detect the hole position.

[0020] The locking adjustment part is a worm gear mechanism, which uses the self-locking characteristic of the worm gear mechanism to fix the adjusted position.

[0021] like Figure 5 As shown, the worm gear mechanism includes a worm 307 rotatably connected to the hollow rod portion 309 and a worm wheel 308 fixed to the moving portion 305 and meshing with the worm 307.

[0022] To facilitate the sliding guidance of the moving part 305, the hollow rod part 309 is provided with a slide rail 306 for the sliding guidance of the moving part 305.

[0023] Compared with the prior art, this utility model adds the function of adjustable length of the vertical rod of the rotating rod 303. In order to identify the adjustment size, a scale line for reference extension distance is provided on the smooth surface of the outer side of the moving part 305. The horizontal rod of the rotating rod 303 can be designed to be the zero mark position of the scale line when it is close to the end face of the hollow rod part 309 of the vertical rod. In this way, the extension length of the vertical rod of the rotating rod 303 after adjustment can be read through the scale line.

[0024] Specifically, the upper end of the moving part 305 has an open structure, and the worm gear 308 is set on the side wall of the open structure of the moving part 305 to ensure that the helical structure of the worm 307 can mesh with the worm gear 308, while avoiding structural interference between the worm 307 and the moving part 305.

[0025] The sliding mechanism 5 includes a second raising base 501. A pull rod 502 is slidably connected to a slotted section at the top of the second raising base 501. The pull rod 502 has evenly spaced through holes for a pin 503 to be inserted from above to fix the pull rod 502 to the second raising base 501. A fixture table 507 is connected to the lower side of the end of the pull rod 502 via a lower hinge 509. A beveled hole detection pin 505, capable of elastically resetting relative to the fixture table 507, is slidably connected to the fixture table 507. The elastic reset principle of the beveled hole detection pin 505 is the same as the reset principle of the hole position detection pin 304.

[0026] A second worm gear 504 is rotatably connected to the pull rod 502. The second worm gear 504 extends into the pull rod 502 and engages with a second worm wheel 508 that can slide relative to the pull rod 502. The end of the second worm wheel 508 extends through the side end face of the pull rod 502 and is slidably connected to the side of the inspection table 507 through the upper hinge pair 506. The side of the inspection table 507 is provided with a T-shaped groove for the upper hinge pair 506 to slide. When the second worm wheel 508 extends outward, the upper hinge pair 506 rotates and slides along the T-shaped groove, thereby driving the inspection table 507 to rotate around the lower hinge pair 509. In this way, the inspection table 507 changes from its original state of being in contact with the side end face of the pull rod 502 to an inclined state, changing the angle of the inclined hole detection pin 505 relative to the horizontal plane, thus adapting to the use of the inspection of holes on the new specification electronic shift frame assembly workpiece 9.

[0027] A protractor 510 for reference rotation angle is installed on the end face of the fixture 507 near the pull rod 502. The angle when the fixture 507 and pull rod 502 are fully contacted can be set to 0°. In subsequent adjustments, after the fixture 507 rotates relative to the pull rod 502, an angle will form between them, which can be measured using the protractor. The sliding mechanism 5 of this invention not only extends the horizontal distance detection but also allows for a small-range adjustment of the tilt angle of the inclined hole detection pin 505, enabling it to penetrate and detect inclined holes, thus expanding the detection range.

[0028] The flipping mechanism 2 4 includes a heightening base 3 401, a swing rod 402 hinged to the top of the heightening base 3 401, an upper gauge seat 403 mounted on the outer end of the swing rod 402, and a lower gauge seat 404 mounted on the lower side of the outer end of the upper gauge seat 403. Two vertically oriented hole position detection pins 2 405 are provided on the upper gauge seat 403, and one vertically oriented hole position detection pin 2 405 is provided on the lower gauge seat 404. The flipping mechanism 2 4 of this invention adopts a spatial stepped staggered arrangement, that is, the two hole position detection pins 2 405 on the upper gauge seat 403 are at the same height and are higher than the hole position detection pin 2 405 on the lower gauge seat 404. This spatial stepped staggered arrangement avoids interference with the shape and contour of the electronic shift frame assembly workpiece 9, thus ensuring smooth hole position detection.

[0029] During operation, the electronic shift frame assembly 9 to be inspected is first placed on multiple positioning reference blocks 2. Using go / no-go gauges 7 with specifications of TΦ2.75~ZΦ3.25, the edge gap between the electronic shift frame assembly 9 and the simulation block 8 is inspected. If the go end can pass through but the no-go end cannot, it is qualified; otherwise, it is unqualified. The inclined hole detection pin 505 on the sliding mechanism 5 can contact the inclined hole on the electronic shift frame assembly 9 for inspection. The hole position detection pin 304 on the flipping mechanism 1 3 and flipping mechanism 2 4 can inspect the insertion of the hole into the upper plane of the electronic shift frame assembly 9. Because the sliding mechanism 5 can change the position of the inclined hole detection pin 505 within a small range by sliding and translating, it can better extend into the inclined hole on the electronic shift frame assembly workpiece 9. However, the pull rod 502 of the sliding mechanism 5 can only move a small distance in the horizontal direction and cannot change the tilt angle of the inclined hole detection pin 505 of the sliding mechanism 5. When the hole on the electronic shift frame assembly workpiece 9 is adjusted in position or angle due to changes in specifications, the worm gear 504, which is similar to an adjustable wrench, can be pushed by finger to drive the rotation of the worm wheel 508, so that the worm wheel 508 extends. In this way, the two inclined hole detection pins 505 can rotate around the lower hinge joint 509 and change the tilt angle. Of course, by rotating the worm gear 307, the worm wheel 308 can be driven to rotate, which in turn causes the moving part 305 to push the rotating rod 303 to move horizontally, thereby changing the position of the hole position detection pin 304 and using the hole detection on the electronic shift frame assembly workpiece 9 of different specifications.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fixture for an electronic shift frame assembly, comprising a fixture base plate (1), wherein a plurality of positioning reference blocks (2) are provided on the fixture base plate (1), and the upper end of the positioning reference blocks (2) is provided with reference holes (6), characterized in that: A simulated block (8) with a similar shape to the electronic shift frame assembly workpiece (9) is set between multiple positioning reference blocks (2). The inspection base plate (1) is also equipped with a flipping mechanism one (3), a flipping mechanism two (4) and a sliding mechanism (5) for detecting the hole positions of the electronic shift frame assembly workpiece (9). The position of the hole position detection pin one (304) set on the flipping mechanism one (3) can be adjusted horizontally, and the tilt angle of the inclined hole detection pin (505) set on the sliding mechanism (5) can be adjusted.

2. The inspection fixture for the electronic shift frame assembly according to claim 1, characterized in that: The flipping mechanism (3) includes a rotating seat (302), and a rotating rod (303) is rotatably connected inside the opening of the rotating seat (302). Each end of the rotating rod (303) is connected to a hole position detection pin (304) that can be elastically reset.

3. The inspection fixture for the electronic shift frame assembly according to claim 2, characterized in that: The vertical rod of the rotating rod (303) can be adjusted in length to change the position of the hole position detection pin (304).

4. The inspection fixture for the electronic shift frame assembly according to claim 3, characterized in that: The vertical rod of the rotating rod (303) includes a hollow rod part (309) that is rotatably connected to the opening of the rotating seat (302), and a moving part (305) that is inserted into the hollow rod part (309) and adjusted by the locking adjustment part to change the overall length of the vertical rod.

5. The inspection fixture for the electronic shift frame assembly according to claim 4, characterized in that: The locking adjustment part is a worm gear mechanism.

6. The inspection fixture for the electronic shift frame assembly according to claim 5, characterized in that: The worm gear mechanism includes a worm (307) rotatably connected to the hollow rod and a worm wheel (308) fixed to the moving part (305) and meshing with the worm (307).

7. The inspection fixture for the electronic shift frame assembly according to claim 4, characterized in that: The smooth outer surface of the moving part (305) is provided with scale lines for reference elongation distance.

8. The inspection fixture for the electronic shift frame assembly according to claim 1, characterized in that: The sliding mechanism (5) includes a pull rod (502), and the lower side of the end of the pull rod (502) is connected to a gauge table (507) through a lower hinge joint (509). The gauge table (507) is slidably connected to the inclined hole detection pin (505).

9. The inspection fixture for the electronic shift frame assembly according to claim 8, characterized in that: The pull rod (502) is rotatably connected to a worm gear two (504), which extends into the pull rod (502) and meshes with a worm wheel two (508). The end of the worm wheel two (508) is slidably connected to the side of the inspection table (507) through an upper hinge pair (506).

10. The inspection fixture for the electronic shift frame assembly according to claim 9, characterized in that: A protractor for reference rotation angle is installed on the end face of the fixture table (507) near the pull rod (502).

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