An assembly tool and tool circulating mechanism compatible with assembly of various door handle faceplates

Abstract

The utility model discloses a kind of compatible assembly tool and tool circulating mechanism of multiple door handle faceplate assembly, by being designed with shaft sleeve and mandrel on tool base plate, for the coaxial assembly of snap spring, angle limit stopper block, torsion spring, gasket and washer etc. And the positioning column reset piece between them, so that the assembly tool can conveniently adjust the relative position of the lap joint part on torsion spring positioning column and mandrel, to adapt the relative position of torsion spring lap joint position and handle shaft on different door handle, so that the assembly tool can adapt to the door handle assembly demand of different manufacturers, different models, without designing tool for each door handle alone, reduce production cost and time.

Description

Technical Field

[0001] This utility model relates to the field of door handle assembly technology, specifically to an assembly fixture and fixture circulation mechanism compatible with the assembly of various door handle panels. Background Technology

[0002] As a key component of a door, a door handle is usually designed to be both practical and aesthetically pleasing. Its main function is to allow people to open and close the door conveniently. As part of the door, it also affects the overall appearance of the door. In particular, the design of the handle and the panel are unique, such as the curvature and shape of the handle, as well as the shape and positioning design of the panel. Meanwhile, core components such as snap rings, corner limit blocks, torsion springs, washers and gaskets tend to be standardized.

[0003] Existing assembly fixtures can only be adapted to the assembly of one type of door handle or one type of door handle, and cannot be compatible with the assembly of door handles with different handles or panels at the same time. This results in the need to design assembly fixtures that are compatible with the door handles of different manufacturers, which makes the application of assembly fixtures in door handle assembly limited and lacking in versatility.

[0004] In view of this, there is an urgent need to design an assembly tool that can be adapted to the assembly of various door handle panels in order to solve the defects of the current assembly tool. Summary of the Invention

[0005] To solve the above problems, this utility model provides an assembly fixture and a fixture circulation mechanism that are compatible with the assembly of various door handle panels.

[0006] In a first aspect, this utility model provides an assembly fixture compatible with various door handle panels, comprising a fixture base plate, a bushing, and a mandrel. The bushing is movably connected to the fixture base plate. The mandrel includes a fitting portion and a positioning portion. The fitting portion is movably connected inside the bushing. The inner cavity of the bushing is provided with a bushing reset member. One end of the bushing reset member abuts against the fitting portion, and the other end of the bushing reset member abuts against the bushing. The positioning portion extends to the outside of the fixture base plate. A limiting groove is formed on the fitting portion. At least one long panel positioning groove and at least one small panel positioning groove are formed on the upper surface of the fixture base plate. A torsion spring positioning groove is provided on the outer side of the fixture base plate. A torsion spring positioning post is connected inside the torsion spring positioning groove. The torsion spring positioning post includes a limiting portion and an overlapping portion. The limiting portion is movably connected inside the torsion spring positioning groove. A positioning post reset member is provided between the torsion spring positioning groove and the limiting portion. The overlapping portion extends to the outside of the fixture base plate.

[0007] Based on the first aspect, in one possible implementation, the same long panel positioning slot is symmetrically arranged or symmetrically structured, and the same small panel positioning slot is symmetrically arranged or symmetrically structured; a panel positioning component is connected inside the long panel positioning slot or the small panel positioning slot.

[0008] Based on the first aspect, in one possible implementation, a positioning pin is inserted through the tooling base plate, a bushing is provided with a bushing limiting hole, a mandrel is provided with a mandrel limiting hole, and the positioning pin is inserted through the bushing limiting hole and the mandrel limiting hole.

[0009] Based on the first aspect, in one possible implementation, a positioning sealing plate is provided on one side of the torsion spring positioning groove. The positioning sealing plate is fixed on the tooling base plate by fasteners. Two positioning sealing plates are provided. The positioning sealing plate is provided with a waist-shaped hole. The tooling base plate is provided with a positioning hole. The positioning sealing plate includes a positioning angle, which protrudes from the upper end face of the tooling base plate.

[0010] Based on the first aspect, in one possible implementation, a positioning sealing plate is provided on one side of the torsion spring positioning groove. The positioning sealing plate is fixed on the tooling base plate by fasteners, and the end face of the positioning sealing plate does not extend beyond the upper end face of the tooling base plate.

[0011] Based on the first aspect, in one possible implementation, the small panel positioning groove includes at least one of a small panel hole-type positioning groove, a small panel edge positioning groove, and a small panel corner-type positioning groove.

[0012] Based on the first aspect, in one possible implementation, the long panel positioning groove is a long panel hole-type positioning groove.

[0013] Based on the first aspect, in one possible implementation, at least one side of the tooling substrate is connected to a spacer post, and the lower end face of the tooling substrate is connected to a slider.

[0014] In a second aspect, a tooling circulation mechanism is provided, comprising a first transverse guide rail, a second transverse guide rail, a first longitudinal conveying assembly, and a second longitudinal conveying assembly for cyclically conveying the aforementioned assembly tooling; the first transverse guide rail and the second transverse guide rail are parallel to each other; the first longitudinal conveying assembly includes a first longitudinal power source, a first longitudinal moving plate driven by the first longitudinal power source, and a first transfer guide rail connected to the first longitudinal moving plate; the second longitudinal conveying assembly includes a second longitudinal power source, a second longitudinal moving plate driven by the second longitudinal power source, and a second transfer guide rail connected to the first longitudinal moving plate; the first transverse guide rail, the second transverse guide rail, the first transfer guide rail, and the second transfer guide rail are all adapted to the slider; the first transfer guide rail reciprocates and bridges the first transverse guide rail and the second transverse guide rail as the first longitudinal power source moves; the second transfer guide rail reciprocates and bridges the first transverse guide rail and the second transverse guide rail as the second longitudinal power source moves; a first transverse power source for driving the assembly tooling on the first transverse guide rail to move is provided on one side of the first transverse guide rail; a second transverse power source for driving the assembly tooling on the second transverse guide rail to move is provided on one side of the second transverse guide rail.

[0015] In a third aspect of this utility model, a tooling circulation mechanism is provided, comprising an annular guide rail for circulating the above-mentioned assembly tooling and an annular conveying assembly, wherein the annular conveying assembly comprises a transmission wheel disposed inside the annular guide rail and an annular power source for driving the transmission wheel to rotate, a transmission belt connecting the transmission wheels, a slider of the assembly tooling being connected to the annular guide rail, and one end of the assembly tooling being connected to the transmission belt.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] The tooling base plate of this technical solution is designed with bushings and spindles for coaxial assembly of components such as snap rings, corner limiting blocks, torsion springs, washers and gaskets. The tooling base plate also has at least one long panel positioning groove and at least one small panel positioning groove, which allows the assembly tooling to adapt to door handle panels of different sizes and shapes, greatly enhancing the versatility and flexibility of the tooling.

[0018] The technical solution's assembly fixture features a torsion spring positioning groove and a torsion spring positioning post on the outer side of the fixture base plate, along with a positioning post reset component between them. This allows the assembly fixture to easily adjust the relative position of the overlapping part on the torsion spring positioning post and the spindle to adapt to the relative position of the torsion spring overlapping position and the handle shaft on different door handles. This enables the assembly fixture to meet the assembly needs of door handles from different manufacturers and models, eliminating the need to design separate fixtures for each type of door handle, thus reducing production costs and time. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the assembly tooling in Embodiment 1 of this utility model.

[0020] Figure 2 This is another perspective view of the assembly tooling in Embodiment 1 of this utility model.

[0021] Figure 3 This is a cross-sectional view of the assembly tooling according to Embodiment 1 of this utility model.

[0022] Figure 4 This is an exploded view of the bushing and mandrel in Embodiment 1 of this utility model.

[0023] Figure 5 This is a perspective view of an assembly fixture for a long panel according to Embodiment 1 of this utility model.

[0024] Figure 6 This is a perspective view of the assembly fixture for a small panel according to Embodiment 1 of this utility model.

[0025] Figure 7 This is a perspective view of the front and back door handles of the first type of small panel in Embodiment 2 of this utility model.

[0026] Figure 8 This is a three-dimensional view of the assembly tooling in Embodiment 2 of this utility model.

[0027] Figure 9 This is a perspective view of the front and back door handles of the first type of small panel in Embodiment 3 of this utility model.

[0028] Figure 10 This is a perspective view of the assembly tooling in Embodiment 3 of this utility model.

[0029] Figure 11 This is a perspective view of the front and back door handles of the first type of small panel in Embodiment 4 of this utility model.

[0030] Figure 12 This is a three-dimensional view of the assembly tooling in Embodiment 4 of this utility model.

[0031] Figure 13 This is a perspective view of the front and back door handles of the first type of small panel in Embodiment 5 of this utility model.

[0032] Figure 14 This is a three-dimensional view of the assembly tooling in Embodiment 5 of this utility model.

[0033] Figure 15 This is a perspective view of the tooling circulation mechanism in Embodiment Six of this utility model.

[0034] Figure 16 This is a partial schematic diagram of the tooling circulation mechanism in Embodiment Six of this utility model.

[0035] Figure 17 This is another partial schematic diagram of the tooling circulation mechanism in Embodiment Six of this utility model.

[0036] Figure 18 This is a perspective view of the tooling circulation mechanism in Embodiment 7 of this utility model. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] Example 1

[0039] Combined with appendix Figure 1 To be continued Figure 4 This utility model provides an assembly fixture 10 compatible with various door handle panels, comprising a fixture base plate 11, a bushing 12, and a mandrel 13. The bushing 12 is movably connected to the fixture base plate 11. The mandrel 13 includes a sleeve portion 131 and a positioning portion 132. The sleeve portion 131 is movably connected inside the bushing 12. The inner cavity of the bushing 12 is provided with a bushing reset member 14. One end of the bushing reset member 14 abuts against the sleeve portion 131, and the other end of the bushing reset member 14 abuts against the bushing 12. The positioning portion 132 extends to the outside of the fixture base plate 11. A limiting groove 133 is provided on the part 131. At least one long panel positioning groove 111 and at least one small panel positioning groove 112 are provided on the upper end surface of the tooling substrate 11. A torsion spring positioning groove 113 is provided on the outer side of the tooling substrate 11. A torsion spring positioning post 15 is connected in the torsion spring positioning groove 113. The torsion spring positioning post 15 includes a limiting part 151 and an overlapping part 152. The limiting part 151 is movably connected in the torsion spring positioning groove 113. A positioning post reset member 16 is provided between the torsion spring positioning groove 113 and the limiting part 151. The overlapping part 152 extends to the outside of the tooling substrate 11.

[0040] In this embodiment, the sleeve portion 131 is used for the coaxial sleeve of the retaining ring, the corner limiting block, the torsion spring, the washer, the gasket, and the panel; the limiting groove 133 is used for the positioning of the corner limiting block and the torsion spring; the torsion spring positioning post 15 is used for the positioning of the torsion spring during the assembly process; and the positioning portion 132 is used for positioning the rotating shaft end of the handle. The positioning method and principle of the above components on the assembly fixture refer to the content disclosed in the specification of the applicant's earlier patent application CN118848516A.

[0041] In this embodiment, one end of the positioning post reset member 16 abuts against the bottom of the torsion spring positioning groove 113, and the other end of the positioning post reset member 16 abuts against the limiting part 151, thereby realizing the telescopic movement of the torsion spring positioning post 15 on the tooling base plate 11.

[0042] In this embodiment, the torsion spring positioning groove 113 is formed on the outer side of the tooling base plate 11, so that the torsion spring positioning post 15 can be replaced according to the rotation angle requirement of the torsion spring on the target assembly door handle, thereby improving the versatility and convenience of the assembly tooling.

[0043] In this embodiment, the same type of long panel positioning groove 111 is symmetrically arranged or symmetrically structured, and the same type of small panel positioning groove 112 is symmetrically arranged or symmetrically structured; a panel positioning member 17 is connected inside the long panel positioning groove 111 or the small panel positioning groove 112; the aforementioned symmetrically arranged or symmetrically structured long panel positioning groove 111 / small panel positioning groove 112, when the panel positioning member 17 is inserted into the long panel positioning groove 111 / small panel positioning groove 112 at different positions, can meet the installation of door handles (inner door handles and outer door handles) in different directions, further improving the versatility of the assembly tooling.

[0044] In this embodiment, a positioning pin 18 is inserted through the tooling base plate 11, a bushing limiting hole 121 is formed on the bushing 12, and a mandrel limiting hole 134 is formed on the mandrel 13. The positioning pin 18 is inserted into the bushing limiting hole 121 and the mandrel limiting hole 134. The above structure allows the bushing 12 and the mandrel 13 to extend and retract relative to the tooling base plate 11. The specific action mode and principle are also referred to the content disclosed in the specification of the applicant's earlier patent application CN118848516A.

[0045] In this embodiment, as shown in the appendix Figure 5As shown, a positioning sealing plate 19 is provided on one side of the torsion spring positioning groove 113. The positioning sealing plate 19 is fixed to the tooling base plate 11 by fasteners. Two positioning sealing plates 19 are provided. The positioning sealing plate 19 has a waist-shaped hole 191. The tooling base plate 11 has a positioning hole 114. The positioning sealing plate 19 includes a positioning angle 192, which protrudes from the upper end face of the tooling base plate 11. The positioning angle 192 protruding from the tooling base plate 11 is designed to limit the assembly of long panels on the tooling base plate 11. Moreover, the fasteners are connected to the positioning hole 114 through the waist-shaped hole 191, and the distance between the positioning angles 192 can be adjusted to accommodate long panels of different widths. In another embodiment, the positioning sealing plate 19 can also be a single piece with the positioning angles 192 at both ends, but the distance between the two positioning angles 192 is not adjustable, resulting in relatively poor flexibility.

[0046] In this embodiment, as shown in the appendix Figure 6 As shown, a positioning sealing plate 19 is provided on one side of the torsion spring positioning groove 113. The positioning sealing plate 19 is fixed on the tooling base plate 11 by fasteners. The end face of the positioning sealing plate 19 does not extend beyond the upper end face of the tooling base plate 11. The main function of the positioning sealing plate 19 is to seal the torsion spring positioning post 15 and the torsion spring reset member 16, which is suitable for the assembly of small panel door handles.

[0047] In this embodiment, the small panel positioning groove 112 includes at least one of the following: a small panel hole-type positioning groove 1121, a small panel edge positioning groove 1122, and a small panel corner-type positioning groove 1123. Figure 2 The three types of small panel positioning slots are shown.

[0048] In this embodiment, when multiple small panel positioning slots 112 exist simultaneously, the positions of different positioning slots on the tooling substrate 11 may overlap, but they can be distinguished based on differences in depth or shape; as shown in the attached figure. Figure 2 As shown, the small panel hole positioning groove 1121 and the small panel edge positioning groove 1122 overlap, but the depth of the small panel hole positioning groove 1121 is deeper than the depth of the small panel edge positioning groove 1122.

[0049] In this embodiment, the long panel positioning groove 111 is a long panel hole-type positioning groove 1111.

[0050] The following embodiments will further illustrate that different panel positioning parts 17 are connected in different positioning slots to realize the positioning and assembly of different door handle panels.

[0051] In this embodiment, at least one side of the tooling base plate 11 is connected to a spacer post 115, and the lower end face of the tooling base plate 11 is connected to a slider 116. The spacer post 115 is used for spacing between the assembly tooling 10, and the slider 116 is used for connecting the assembly tooling 10 on the circulation mechanism.

[0052] The assembly fixture in this embodiment features a bushing and a mandrel on its base plate for coaxial assembly of components such as snap rings, corner limiting blocks, torsion springs, washers, and gaskets. The base plate also includes at least one long panel positioning groove and at least one small panel positioning groove, allowing the assembly fixture to adapt to door handle panels of different sizes and shapes, greatly enhancing its versatility and flexibility. The torsion spring positioning groove and torsion spring positioning post design on the outer side of the base plate, along with the positioning post reset component, allows for easy adjustment of the relative position of the overlapping portion on the torsion spring positioning post and the mandrel. This adapts to the relative position of the torsion spring overlapping position and the handle shaft on different door handles, enabling the assembly fixture to meet the assembly needs of door handles from different manufacturers and models without requiring separate fixture design for each type of door handle, thus reducing production costs and time.

[0053] Example 2

[0054] Combined with appendix Figure 7 This is a type of small panel door handle with front and back sides. The inner ring inside the panel 40 has a spherical panel positioning structure 41. In this figure, a straight panel positioning structure 41 is used as an example.

[0055] Combined with appendix Figure 2 and attached Figure 8 The small panel edge positioning groove 1122 of the assembly fixture 10 is connected to a panel positioning component 17. The end face of the panel positioning component 17 is provided with a mating structure that is adapted to the panel positioning structure 41, thereby realizing the positioning and assembly of the panel 40 on the assembly fixture 10.

[0056] Example 3

[0057] Combined with appendix Figure 9 This is a second type of small panel front and back door handle. The four corners of the inner side of the panel 40 are provided with panel positioning structures 41. In this figure, an irregular pentagonal panel positioning structure 41 is used as an example.

[0058] Combined with appendix Figure 2 and attached Figure 10 The small panel corner positioning groove 1123 of the assembly fixture 10 is connected to a panel positioning component 17. The end face of the panel positioning component 17 is provided with a mating structure that is adapted to the panel positioning structure 41, thereby realizing the positioning and assembly of the panel 40 on the assembly fixture 10.

[0059] Example 4

[0060] Combined with appendix Figure 11 This is a third type of small panel front and back door handle, with a hole-shaped panel positioning structure 41 on its panel 40. In this figure, a panel positioning structure 41 with a round hole is used as an example.

[0061] Combined with appendix Figure 2 and attached Figure 12 The small panel hole positioning groove 1121 of the assembly fixture 10 is connected to a panel positioning component 17. The cross-section of the panel positioning component 17 is adapted to the panel positioning structure 41, thereby realizing the positioning and assembly of the panel 40 on the assembly fixture 10.

[0062] Example 5

[0063] Combined with appendix Figure 13 The door handle is a long panel, and the inner ring inside the panel 40 is provided with a side-shaped panel positioning structure (lock hole) 41. In this figure, the lock hole-shaped panel positioning structure 41 is used as an example.

[0064] Combined with appendix Figure 2 and attached Figure 14 The long panel hole-shaped positioning groove 1111 of the assembly fixture 10 is connected to a panel positioning member 17. The cross-section of the panel positioning member 17 is adapted to the panel positioning structure 41, thereby realizing the positioning and assembly of the panel 40 on the assembly fixture 10.

[0065] Example 6

[0066] Combined with appendix Figure 15 To be continued Figure 17The present invention provides a tooling circulation mechanism 20, comprising a first transverse guide rail 21, a second transverse guide rail 22, a first longitudinal conveying assembly 23, and a second longitudinal conveying assembly 24 for cyclically conveying the aforementioned assembly tooling 10. The first transverse guide rail 21 and the second transverse guide rail 22 are parallel to each other. The first longitudinal conveying assembly 23 includes a first longitudinal power source 231, a first longitudinal moving plate 232 driven by the first longitudinal power source 231, and a first transfer guide rail 233 connected to the first longitudinal moving plate 232. The second longitudinal conveying assembly 24 includes a second longitudinal power source 241, a second longitudinal moving plate 242 driven by the second longitudinal power source 241, and a second transfer guide rail 243 connected to the first longitudinal moving plate 242. The first transverse guide rail 21, the second transverse guide rail 22, the first longitudinal conveying assembly 23, and the second longitudinal conveying assembly 24 are parallel to each other. The second transverse guide rail 22, the first transfer guide rail 233, and the second transfer guide rail 243 are all adapted to the slider 116 to realize the movable connection of the assembly fixture 10 on the guide rails. The first transfer guide rail 233 reciprocates and bridges the first transverse guide rail 21 and the second transverse guide rail 22 with the movement of the first longitudinal power source 231. The second transfer guide rail 243 reciprocates and bridges the first transverse guide rail 21 and the second transverse guide rail 22 with the movement of the second longitudinal power source 241. A first transverse power source 25 for driving the assembly fixture 10 on the first transverse guide rail 21 to move is provided on one side of the first transverse guide rail 21. A second transverse power source 26 for driving the assembly fixture 10 on the second transverse guide rail 22 to move is provided on one side of the second transverse guide rail 22.

[0067] In this embodiment, the first longitudinal conveying component 23 and the second longitudinal conveying component 24 are used to transfer the assembly tooling 10 between the first transverse guide rail 21 and the second transverse guide rail 22.

[0068] In this embodiment, bridging means that the guide rails are in the same direction, that is, the assembly fixture 10 can move from one guide rail to another.

[0069] In this embodiment, the first lateral power source 25 and the second lateral power source 26 move the assembly tool 10 on the first lateral guide rail 21 and the second lateral guide rail 22 by pushing the assembly tool 10 close to one side of them.

[0070] In this embodiment, when the tooling circulation mechanism 20 is running, the assembly tooling 10 flows along a U-shaped path.

[0071] Example 7

[0072] Combined with appendix Figure 18The present invention provides a tooling circulation mechanism 30, which includes an annular guide rail 31 for circulating conveying any one of the assembly tooling 10 in embodiments 1 to 5 and an annular conveying assembly. The annular conveying assembly includes a transmission wheel 32 disposed inside the annular guide rail 31 and an annular power source 33 for driving the transmission wheel 32 to rotate. A transmission belt 34 is connected between the transmission wheels 32. The slider 116 of the assembly tooling 10 is connected to the annular guide rail 31, and one end of the assembly tooling 10 is connected to the transmission belt 33.

[0073] In another embodiment, the transmission belt 34 is a synchronous belt or a transmission chain.

[0074] In this embodiment, the transmission wheel 32 is a synchronous wheel or a sprocket.

[0075] In this embodiment, the annular guide rail 31 is waist-shaped, and the transmission wheels 32 are respectively disposed at the corners of the annular guide rail 31, with one of the transmission wheels 32 connected to the annular power source 33.

[0076] In this embodiment, when the tooling circulation mechanism 30 is running, the assembly tooling 10 performs a waist-shaped flow operation.

[0077] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0078] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An assembly fixture compatible with various door handle panels, comprising a fixture base plate, a bushing, and a mandrel, wherein the bushing is movably connected to the fixture base plate, the mandrel includes a fitting portion and a positioning portion, the fitting portion is movably connected inside the bushing, the inner cavity of the bushing is provided with a bushing reset member, one end of the bushing reset member abuts against the fitting portion, the other end of the bushing reset member abuts against the bushing, the positioning portion extends to the outside of the fixture base plate, and a limiting groove is formed on the fitting portion, characterized in that... The upper surface of the tooling substrate is provided with at least one long panel positioning groove and at least one small panel positioning groove. The outer side of the tooling substrate is provided with a torsion spring positioning groove. A torsion spring positioning post is connected in the torsion spring positioning groove. The torsion spring positioning post includes a limiting part and an overlapping part. The limiting part is movably connected in the torsion spring positioning groove. A positioning post reset member is provided between the torsion spring positioning groove and the limiting part. The overlapping part extends to the outside of the tooling substrate.

2. The assembly fixture compatible with multiple door handle panels according to claim 1, characterized in that, The same type of long panel positioning groove is symmetrically arranged or symmetrically structured, and the same type of small panel positioning groove is symmetrically arranged or symmetrically structured; a panel positioning component is connected inside the long panel positioning groove or the small panel positioning groove.

3. The assembly fixture compatible with multiple door handle panels according to claim 1, characterized in that, A positioning pin is inserted through the tooling base plate, a bushing is provided with a bushing limiting hole, and a mandrel is provided with a mandrel limiting hole. The positioning pin is inserted through the bushing limiting hole and the mandrel limiting hole.

4. The assembly fixture compatible with multiple door handle panels according to claim 1, characterized in that, A positioning sealing plate is provided on one side of the torsion spring positioning groove. The positioning sealing plate is fixed on the tooling base plate by fasteners. Two positioning sealing plates are provided. The positioning sealing plate has a waist-shaped hole. The tooling base plate has a positioning hole. The positioning sealing plate includes a positioning angle, which protrudes from the upper end face of the tooling base plate.

5. The assembly fixture compatible with multiple door handle panels according to claim 1, characterized in that, A positioning sealing plate is provided on one side of the torsion spring positioning groove. The positioning sealing plate is fixed on the tooling base plate by fasteners, and the end face of the positioning sealing plate does not extend beyond the upper end face of the tooling base plate.

6. An assembly fixture compatible with multiple door handle panels according to any one of claims 1 to 5, characterized in that, The small panel positioning groove includes at least one of the following: small panel hole positioning groove, small panel edge positioning groove, and small panel corner positioning groove.

7. An assembly fixture compatible with multiple door handle panels according to any one of claims 1 to 5, characterized in that, The long panel positioning groove is a long panel hole-type positioning groove.

8. An assembly fixture compatible with multiple door handle panels according to any one of claims 1 to 5, characterized in that, At least one side of the tooling substrate is connected to a spacer post, and a slider is connected to the lower end face of the tooling substrate.

9. A tooling circulation mechanism, characterized in that, The assembly includes a first transverse guide rail, a second transverse guide rail, a first longitudinal conveying assembly, and a second longitudinal conveying assembly for cyclically conveying the assembly fixture of claim 8. The first transverse guide rail and the second transverse guide rail are parallel to each other. The first longitudinal conveying assembly includes a first longitudinal power source, a first longitudinal moving plate driven by the first longitudinal power source, and a first transfer guide rail connected to the first longitudinal moving plate. The second longitudinal conveying assembly includes a second longitudinal power source, a second longitudinal moving plate driven by the second longitudinal power source, and a second transfer guide rail connected to the first longitudinal moving plate. The first transverse guide rail, the second transverse guide rail, the first transfer guide rail, and the second transfer guide rail are all adapted to the slider. The first transfer guide rail reciprocates and bridges the first transverse guide rail and the second transverse guide rail as the first longitudinal power source moves. The second transfer guide rail reciprocates and bridges the first transverse guide rail and the second transverse guide rail as the second longitudinal power source moves. A first transverse power source for driving the assembly fixture on the first transverse guide rail to move is provided on one side of the first transverse guide rail, and a second transverse power source for driving the assembly fixture on the second transverse guide rail to move is provided on one side of the second transverse guide rail.

10. A tooling circulation mechanism, characterized in that, The assembly includes an annular guide rail for cyclically conveying the assembly fixture of claim 8 and an annular conveying assembly, wherein the annular conveying assembly includes a drive wheel disposed inside the annular guide rail and an annular power source for driving the drive wheel to rotate, a drive belt connecting the drive wheels, a slider of the assembly fixture connected to the annular guide rail, and one end of the assembly fixture connected to the drive belt.

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