Universal steering wheel positioning tool

Abstract

The utility model relates to steering wheel positioning field especially, more particularly to a general steering wheel positioning frock, including support frame, it includes bottom plate and backplate, backplate and bottom plate vertical fixed connection, put block, it is located the top of bottom plate for placing steering wheel, floating mechanism, it is fixed on the bottom plate and the upper end of floating mechanism is fixedly connected with the bottom of put block, two steering wheel positioning mechanisms, are located put block's both sides, include adapter bar and positioning push piece respectively, the upper end of each adapter bar is hinged with the middle position of corresponding positioning push piece respectively, the lower end of each adapter bar is hinged with put block respectively, the lower position of each positioning push piece is hinged with backplate respectively. The utility model does not need to carry out the profiling design alone for each kind of steering wheel, and a frock can be compatible with multiple models, multiple sizes of steering wheel, greatly reduces frock's design and manufacturing cost, and has improved production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of steering wheel positioning technology, and in particular relates to a universal steering wheel positioning fixture. Background Technology

[0002] As a core component of a car's control system, the steering wheel undergoes surface polishing during its production, a crucial process for improving its appearance and feel. On the steering wheel production line, the steering wheel typically needs to be positioned to facilitate subsequent polishing. Because steering wheels from different car models and of different specifications vary significantly in shape and size, traditional positioning methods often employ contour-following positioning fixtures, meaning dedicated positioning jigs are designed for each steering wheel model.

[0003] This single-position tooling method has revealed the following problems in actual production:

[0004] (1) There are many types of tooling and frequent changes, which increases the downtime of the production line and affects the overall production efficiency.

[0005] (2) The tooling design and manufacturing costs are high and it is difficult to reuse, which increases the company's equipment investment costs;

[0006] (3) As products are updated and replaced at an accelerated pace, old tooling is often unable to adapt to new steering wheels and needs to be redesigned and manufactured, which further exacerbates the waste of resources.

[0007] Therefore, developing a universal positioning fixture that can adapt to various steering wheel models has become a pressing technical problem to be solved in this field. Utility Model Content

[0008] In view of this, the present invention aims to provide a universal steering wheel positioning fixture to solve the problem that existing fixed fixtures are not universal.

[0009] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0010] A universal steering wheel positioning fixture, comprising:

[0011] The support frame includes a base plate and a back plate, with the back plate being vertically and fixedly connected to the base plate.

[0012] The placement block, located above the base plate, is used to place the steering wheel.

[0013] A floating mechanism is fixed to the base plate, and the upper end of the floating mechanism is fixedly connected to the bottom of the placement block.

[0014] Two steering wheel positioning mechanisms are located on both sides of the placement block; each steering wheel positioning mechanism includes a transition rod and a positioning push block. The upper end of each transition rod is hinged to the middle position of the corresponding positioning push block, the lower end of each transition rod is hinged to the placement block, and the lower position of each positioning push block is hinged to the back plate.

[0015] When the steering wheel is placed on the placement block, the steering wheel's own weight presses down on the placement block and the floating mechanism. During the pressing process, the placement block drives the two adapter rods to rotate in opposite directions, which in turn drives the two positioning push blocks to rotate in opposite directions, thus achieving the centering positioning of the steering wheel.

[0016] Furthermore, the floating mechanism includes a flange shaft and a spring. The flange end of the flange shaft is fixedly connected to the bottom of the placement block, and the other end of the flange shaft passes through the base plate. The spring is sleeved on the flange shaft, with one end of the spring abutting against the flange end and the other end of the spring abutting against the base plate.

[0017] Furthermore, at both ends of the top surface of the placement block, there are sliding wheels connected by corner brackets, and the sliding wheels slide in contact with the frame of the steering wheel.

[0018] Furthermore, pin holes are provided at the lower ends of the two adapter rods and at both ends of the placement block. The lower ends of the two adapter rods are hinged to the placement block through the cooperation of threaded pins and pin holes.

[0019] Furthermore, pin holes are provided at the upper ends of the two adapter rods and at the middle of the two positioning push blocks. The upper ends of the two adapter rods are hinged to the two positioning push blocks through the engagement of the pin holes and threaded pins.

[0020] Furthermore, a pin sleeve is also fitted onto the threaded pin, with one end of the pin sleeve contacting the adapter rod and the other end of the pin sleeve contacting the positioning push block.

[0021] Furthermore, positioning pin holes are provided at the lower part of the two positioning push blocks and at the corresponding positions on the back plate. The lower part of the two positioning push blocks is hinged to the back plate through the cooperation of the positioning pins and the positioning pin holes.

[0022] Furthermore, a positioning pin sleeve is also fitted onto the positioning pin, with one end of the positioning pin sleeve contacting the positioning push block and the other end of the positioning pin sleeve contacting the back plate.

[0023] Furthermore, a stop block is fixedly connected to the upper part of each of the two positioning push blocks.

[0024] Furthermore, both positioning push blocks have an arc-shaped structure.

[0025] Compared with existing technologies, the positioning fixture provided by this utility model adopts a gravity-driven mechanical linkage structure. The weight of the steering wheel itself drives the placement block to press down, causing the adapter rod and positioning push block to retract inward, thereby achieving automatic centering positioning. This positioning fixture eliminates the need for separate contouring design for each type of steering wheel; one set of fixtures can be compatible with various models and sizes of steering wheels, greatly reducing the design and manufacturing costs of the fixture and improving production efficiency. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0027] Figure 1 This is a structural schematic diagram of the universal steering wheel positioning fixture described in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: Support frame 1, base plate 11, back plate 12, rib plate 13, placement block 2, corner bracket 21, sliding wheel 22, floating mechanism 3, flange shaft 31, spring 32, steering wheel positioning mechanism 4, adapter rod 41, positioning push block 42, threaded pin 51, first nut 52, threaded pin shaft 61, second nut 62, pin sleeve 63, positioning pin 71, positioning pin sleeve 72, internal hex bolt 81, stop block 82, limit rod 91, flange 92. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and do not constitute a limitation thereof.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, this utility model embodiment provides a universal steering wheel positioning fixture, including a support frame 1, a placement block 2, a floating mechanism 3, and a steering wheel positioning mechanism 4. The placement block 2 is used to place the steering wheel; the floating mechanism 3 is located below the placement block 2 and is used to provide restoring force to the placement block 2; the steering wheel positioning mechanism 4 is hinged to the placement block 2 and the support frame 1 respectively, and is used to push and position the steering wheel; the placement block 2, the floating mechanism 3, and the steering wheel positioning mechanism 4 constitute a mechanical linkage structure.

[0035] The support frame 1 includes a base plate 11 and a back plate 12. The base plate 11 is horizontally arranged, and the back plate 12 is vertically fixedly connected to the base plate 11. A through hole is provided in the base plate 11. To increase stability, a rib plate 13 is fixedly connected between the base plate 11 and the back plate 12.

[0036] The placement block 2 is located above the base plate 11. When the steering wheel is placed on the placement block 2, the placement block 2 supports the frame of the steering wheel. The steering wheel positioning mechanism 4 achieves centering by pushing the steering wheel to move left and right on the placement block 2. To make the movement of the steering wheel smoother, sliding wheels 22 are connected to both ends of the top surface of the placement block 2 via corner brackets 21. The sliding wheels 22 slide in contact with the frame of the steering wheel.

[0037] The floating mechanism 3 includes a flange shaft 31 and a spring 32. The flange end of the flange shaft 31 is fixedly connected to the bottom of the placement block 2 by bolts. The other end of the flange shaft 31 passes through a through hole in the base plate 11 and extends below the base plate 11. The spring 32 is sleeved on the flange shaft 31, with one end of the spring 32 abutting against the flange end of the flange shaft 31 and the other end abutting against the base plate 11. When the steering wheel is placed on the placement block 2, the weight of the steering wheel presses down on the placement block 2 and the flange shaft 31, compressing the spring 32 and storing elastic potential energy. When the steering wheel leaves the placement block 2, the spring 32 releases its elastic potential energy, causing the flange shaft 31 and the placement block 2 to return to their original positions.

[0038] To limit the descent position of the placement block 2, a limit rod 91 is fixed on the base plate 11 to block the placement block 2. The bottom of the limit rod 91 has a flange 92, which is fixed to the base plate 11 by bolts.

[0039] There are two steering wheel positioning mechanisms 4, located on either side of the placement block 2. Both steering wheel positioning mechanisms 4 have the same structure; one will be used as an example for explanation. The steering wheel positioning mechanism 4 includes a transition rod 41 and an arc-shaped positioning push block 42. The transition rod 41 enables the positioning push block 42 to move in conjunction with the placement block 2. The positioning push block 42, driven by the transition rod 41, contacts the steering wheel to position it. Pin holes are provided at the lower end of the transition rod 41 and at one end of the placement block 2. The lower end of the transition rod 41 is hinged to the placement block 2 via a threaded pin 51 engaging with the pin hole. To prevent the threaded pin 51 from falling out of the pin hole, a first nut 52 is screwed onto the threaded pin 51. Pin holes are provided at the upper end of the transition rod 41 and at the middle of the positioning push block 42. The upper end of the transition rod 41 is hinged to the positioning push block 42 via a pin hole engaging with a threaded pin 61. To prevent the threaded pin 61 from falling out of the pin hole, a second nut 62 is screwed onto the threaded pin 61. A pin sleeve 63 is also fitted onto the threaded pin 61, with one end of the pin sleeve 63 contacting the adapter rod 41 and the other end contacting the positioning push block 42. Positioning pin holes are provided at the lower part of the positioning push block 42 and at the corresponding position on the back plate 12. The lower part of the positioning push block 42 is hinged to the back plate 12 through the engagement of a positioning pin 71 with the positioning pin hole. A positioning pin sleeve 72 is also fitted onto the positioning pin 71, with one end of the positioning pin sleeve 72 contacting the positioning push block 42 and the other end contacting the back plate 12. The positioning push block 42 rotates around the positioning pin 71 under the drive of the adapter rod 41.

[0040] When the steering wheel is placed on the placement block 2, the weight of the steering wheel itself presses down on the placement block 2 and the floating mechanism 3. During the pressing process, the placement block 2 drives the left adapter rod 41 to rotate clockwise and the right adapter rod 41 to rotate counterclockwise. This, in turn, drives the left positioning push block 42 to rotate clockwise and the right positioning push block 42 to rotate counterclockwise, so that the two positioning push blocks 42 contact the steering wheel to achieve the positioning of the steering wheel.

[0041] If the steering wheel turns to the right, the right-side positioning push block 42 will first contact the steering wheel and push it to the left. The steering wheel will then slide to the left on the sliding wheel 22 until the left-side positioning push block 42 contacts the steering wheel, achieving centering. The same logic applies if the steering wheel turns to the left.

[0042] To prevent the steering wheel from tipping over, a stop block 82 is fixedly connected to the positioning push block 42 by an internal hex bolt 81, and the steering wheel is located between the stop block 82 and the back plate 12.

[0043] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this utility model can be achieved, and this is not limited herein.

[0044] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A universal steering wheel positioning fixture, characterized in that, include: The support frame includes a base plate and a back plate, with the back plate being vertically and fixedly connected to the base plate. The placement block, located above the base plate, is used to place the steering wheel. A floating mechanism is fixed to the base plate, and the upper end of the floating mechanism is fixedly connected to the bottom of the placement block. Two steering wheel positioning mechanisms are located on both sides of the placement block; each steering wheel positioning mechanism includes a transition rod and a positioning push block. The upper end of each transition rod is hinged to the middle position of the corresponding positioning push block, the lower end of each transition rod is hinged to the placement block, and the lower position of each positioning push block is hinged to the back plate. When the steering wheel is placed on the placement block, the steering wheel's own weight presses down on the placement block and the floating mechanism. During the pressing process, the placement block drives the two adapter rods to rotate in opposite directions, which in turn drives the two positioning push blocks to rotate in opposite directions, thus achieving the centering positioning of the steering wheel.

2. The universal steering wheel positioning fixture according to claim 1, characterized in that, The floating mechanism includes a flange shaft and a spring. The flange end of the flange shaft is fixedly connected to the bottom of the placement block, and the other end of the flange shaft passes through the base plate. The spring is sleeved on the flange shaft, with one end of the spring abutting against the flange end and the other end of the spring abutting against the base plate.

3. The universal steering wheel positioning fixture according to claim 1, characterized in that, At both ends of the top surface of the placement block, there are sliding wheels connected by corner brackets, and the sliding wheels slide in contact with the frame of the steering wheel.

4. The universal steering wheel positioning fixture according to claim 1, characterized in that, Pin holes are provided at the lower ends of the two adapter rods and at both ends of the placement block. The lower ends of the two adapter rods are hinged to the placement block by the cooperation of threaded pins and pin holes.

5. The universal steering wheel positioning fixture according to claim 1, characterized in that, Pin holes are provided at the upper ends of the two adapter rods and at the middle of the two positioning push blocks. The upper ends of the two adapter rods are hinged to the two positioning push blocks through the engagement of the pin holes and threaded pins.

6. The universal steering wheel positioning fixture according to claim 5, characterized in that, A pin sleeve is also fitted on the threaded pin. One end of the pin sleeve contacts the adapter rod, and the other end of the pin sleeve contacts the positioning push block.

7. The universal steering wheel positioning fixture according to claim 1, characterized in that, Positioning pin holes are provided at the lower part of the two positioning push blocks and at the corresponding positions on the back plate. The lower part of the two positioning push blocks is hinged to the back plate through the cooperation of the positioning pins and the positioning pin holes.

8. The universal steering wheel positioning fixture according to claim 7, characterized in that, A positioning pin sleeve is also fitted on the positioning pin. One end of the positioning pin sleeve contacts the positioning push block, and the other end of the positioning pin sleeve contacts the back plate.

9. The universal steering wheel positioning fixture according to claim 1, characterized in that, Stops are fixedly connected to the upper part of the two positioning push blocks respectively.

10. The universal steering wheel positioning fixture according to claim 1, characterized in that, Both positioning push blocks have an arc-shaped structure.

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