Hollow positioning and clamping tool for special-shaped parts

Abstract

The utility model discloses a kind of hollow positioning clamping tool of special-shaped part, including base, the base is "C" type structure, and middle part is provided with hollow part;The base includes oppositely arranged side support part one and side support part two, and the side support part two is higher than the side support part one;It further includes the rear support part of connecting side support part one and side support part two, and the rear support part top end is provided with protruding rear limiting portion along base height direction.This utility model is to special-shaped part of specific shape, using the design idea of "feature inlay, self-limiting", through the cooperation of limiting protrusion and gap, boss, and the accommodation of giving way groove to rib and protuberance, the accurate positioning and fixed of this special-shaped part are realized, the shielding or interference of traditional clamp to assembly surface is avoided, the assembly surface of special-shaped part is freely exposed, subsequent assembly operation is facilitated, and process accessibility and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of product clamping tooling technology, and in particular relates to a hollow positioning clamping tooling for irregularly shaped parts. Background Technology

[0002] In fields such as electronics manufacturing and precision assembly, there are often irregularly shaped products with complex geometries, such as parts with asymmetrical contours or non-coplanar support surfaces. These products have the following problems in positioning and clamping during the assembly process: First, irregularly shaped products cannot be stably placed on a flat workbench or assembly line table due to their asymmetrical structure or incomplete support surfaces; Second, traditional fixtures often use clamping from above or the side to fix the workpiece, and the clamping mechanism often obstructs or interferes with the assembly surface of the product. Utility Model Content

[0003] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0004] This utility model provides a hollow positioning clamping fixture for irregularly shaped parts, including:

[0005] The base has a "C" shaped structure with a hollow section in the middle.

[0006] The base includes a side support part one and a side support part two disposed opposite to each other, wherein the side support part two is higher than the side support part one;

[0007] It also includes a rear support portion that connects side support portion one and side support portion two, and the top of the rear support portion is provided with a rear limiting portion that protrudes along the height direction of the base.

[0008] The top of the side support part 1 is provided with an irregularly shaped limiting protrusion 1, and the top of the side support part 1 and the end near the rear limiting part is provided with a limiting protrusion 2.

[0009] As a preferred embodiment of the above technical solution, the rear limiting part is provided with a relief groove 1, a relief groove 2 and a relief groove 3, wherein the relief groove 2 and the relief groove 3 extend along the height direction of the base.

[0010] As a preferred embodiment of the above technical solution, a contraction portion is symmetrically provided on the side of the base opposite to the rear limiting portion.

[0011] As a preferred embodiment of the above technical solution, the outer wall of the contraction section is an arc-shaped smooth surface.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model is designed for irregularly shaped parts with a "feature fitting and self-limiting" design concept. By cooperating with limiting protrusions, notches, and bosses, and by accommodating ribs and raised parts with clearance grooves, it achieves precise positioning and fixation of the irregularly shaped parts. This avoids the obstruction or interference of the assembly surface by traditional fixtures, allowing the assembly surface of the irregularly shaped parts to be freely exposed, which facilitates subsequent assembly operations and greatly improves process accessibility and efficiency. Attached Figure Description

[0014] Figure 1 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 1 ;

[0015] Figure 2 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 2 ;

[0016] Figure 3 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 3 ;

[0017] Figure 4 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 4 ;

[0018] Figure 5 The diagram shown is a schematic representation of the fit between the irregularly shaped part and the tooling in the embodiment.

[0019] Figure 6 The illustration shows a schematic of the tooling in the embodiment. Figure 1 ;

[0020] Figure 7 The illustration shows a schematic of the tooling in the embodiment. Figure 2 ;

[0021] Figure 8 What is shown is Figure 6 Enlarged schematic diagram of the structure at point A in the diagram;

[0022] Reference numerals: 10. Irregular part; 11. Base frame; 12. Side plate one; 121. Notch one; 13. Side plate two; 131. Boss; 14. Rear plate; 15. Rear support; 151. Raised part; 152. Rib one; 153. Rib two; 20. Tooling; 22. Hollowed-out part; 23. Side support part one; 231. Limiting protrusion one; 24. Side support part two; 241. Limiting protrusion two; 25. Rear limiting part; 251. Relief groove one; 252. Relief groove two; 253. Relief groove three; 26. Shrinkage part. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, Figure 1 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 1 , Figure 2 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 2 , Figure 3 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 3 , Figure 4 The illustration shown is a schematic of the irregularly shaped component in the embodiment. Figure 4 ;

[0026] Figure 1 As shown in the coordinate system, X is the length direction of the irregular part 10, Y is the width direction of the irregular part 10, and Z is the height direction of the irregular part 10.

[0027] The irregular part 10 includes:

[0028] The base frame 11 has side plates 12 and 2 side plates 13 arranged opposite to each other on the top two sides, and also includes a rear plate 14 connecting the side plates 12 and 2 side plates 13. A rear bracket 15 is provided at the top of the rear plate 14.

[0029] The rear bracket 15 extends along the height direction. Side plate 12 and side plate 2 13 are not coplanar. Side plate 2 13 is higher than side plate 12, that is, there is a height difference between side plate 12 and side plate 2 13.

[0030] A notch 121 is provided in the middle of the side plate 12, and a boss 131 is provided on the side plate 13 near the end of the rear plate 14.

[0031] The rear support 15 is provided with a raised part 151, and the outer side of the rear support 15 is also provided with rib one 152 and rib two 153 at intervals; wherein rib one 152 and rib two 153 both extend along the height direction.

[0032] like Figure 5 As shown, Figure 5 The diagram shown is a schematic representation of the fit between the irregularly shaped part and the tooling in the embodiment.

[0033] The irregular part 10 and the tooling 20 are movable and cooperate. The tooling 20 realizes the positioning and fixation of the irregular part 10, and fully exposes the assembly surface of the irregular part 10, which facilitates the subsequent assembly of the irregular part 10.

[0034] like Figure 6 , Figure 7 , Figure 8 As shown, Figure 6 The illustration shows a schematic of the tooling in the embodiment. Figure 1 ; Figure 7 The illustration shows a schematic of the tooling in the embodiment. Figure 2 ; Figure 8 What is shown is Figure 6 Enlarged schematic diagram of the structure at point A in the diagram;

[0035] Figure 6 As shown in the coordinate system, X1 is the length direction of tooling 20, Y1 is the width direction of tooling 20, and Z1 is the height direction of tooling 20.

[0036] Tooling 20 includes:

[0037] The base has a "C" shaped structure with a hollow section 22 in the middle;

[0038] The cutout 22 provides space for the base frame 11 of the irregular part 10, and at the same time, the cutout 22 also helps to reduce the overall weight of the tooling 20.

[0039] The base includes a first side support portion 23 and a second side support portion 24 disposed opposite to each other, with the second side support portion 24 being higher than the first side support portion 23;

[0040] Side support part 1 23 and side support part 24 are respectively used for placing side plate 1 12 and side plate 2 13 of the irregular part 10 to achieve asymmetrical height support and ensure the fit and stability between side plate 1 12 and side support part 1 23, and side plate 2 13 and side support part 24.

[0041] It also includes a rear support portion that connects the first side support portion 23 and the second side support portion 24, and the top of the rear support portion is provided with a rear limiting portion 25 that protrudes along the height direction of the base.

[0042] The rear limit part 25 forms the rear positioning reference surface.

[0043] The top of the side support part 23 is provided with an irregularly shaped limiting protrusion 231, and the top of the side support part 23 and the end near the rear limiting part 25 is provided with a limiting protrusion 241.

[0044] The first limiting protrusion 231 corresponds to the notch 121 of the irregular part 10, and the shape matches and is movably fitted; the second limiting protrusion 241 corresponds to the boss 131 of the irregular part 10, and the shape matches and is movably fitted.

[0045] The above structure can realize the positioning of the irregular part 10 in the length and width directions (preventing forward and backward, left and right sliding) and can also serve as a rotation limit (preventing rotation around the Z1 axis).

[0046] The rear limiting part 25 is provided with a first relief groove 251, a second relief groove 252 and a third relief groove 253, wherein the second relief groove 252 and the third relief groove 253 extend along the height direction of the base;

[0047] The clearance groove 251 corresponds to the position of the raised part 151, allowing the raised part 151 to be inserted;

[0048] The second relief groove 252 and the third relief groove 253 correspond to the positions of the first rib 152 and the second rib 153, respectively. The first rib 152 and the second rib 153 are embedded in the second relief groove 252 and the third relief groove 253, respectively, to achieve guidance and prevent lateral displacement, support the installation of irregular parts 10 from top to bottom, have a guiding function, and facilitate assembly.

[0049] A retractable portion 26 is symmetrically provided on the side of the base opposite to the rear limiting portion 25;

[0050] The contraction section 26 restricts the base frame 11 embedded in the hollow section 22 from moving along the X1 direction.

[0051] The outer wall of the contraction section 26 is a smooth arc-shaped surface.

[0052] Although the irregular part 10 is not directly restricted by the tooling 20 in the height direction, this does not affect its assembly process. In fact, it facilitates rapid loading and unloading in the automated production line and ensures sufficient operating space for subsequent assembly processes.

[0053] Working principle: Align the irregular part 10 with the "C"-shaped opening of the tooling 20 and push it down. Ribs 152 and 153 slide into the guide along the relief grooves 252 and 253. The raised part 151 is embedded in the relief groove 251. The base frame 11 enters the hollow part 22. Side plates 12 and 13 are respectively placed on the side support parts 23 and 24. The notch 121 is aligned with the limiting protrusion 231 and the boss 131 is placed on the limiting protrusion 241. The rear bracket 15 abuts against the rear limiting part 25 until all features are fully fitted, thus completing the positioning and fixing of the irregular part 10.

[0054] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A hollow positioning and clamping fixture for irregularly shaped parts, characterized in that, include: The base has a "C" shaped structure with a hollow part (22) in the middle; The base includes a side support part one (23) and a side support part two (24) disposed opposite to each other, wherein the side support part two (24) is higher than the side support part one (23); It also includes a rear support portion that connects the first side support portion (23) and the second side support portion (24), and the top of the rear support portion is provided with a rear limiting portion (25) that protrudes along the height direction of the base. The top of the side support part (23) is provided with an irregularly shaped limiting protrusion (231), and the top of the side support part (23) and the end near the rear limiting part (25) is provided with a limiting protrusion (241).

2. The hollow positioning and clamping fixture for irregularly shaped parts according to claim 1, characterized in that, The rear limiting part (25) is provided with a first relief groove (251), a second relief groove (252) and a third relief groove (253), wherein the second relief groove (252) and the third relief groove (253) extend along the height direction of the base.

3. The hollow positioning and clamping fixture for irregularly shaped parts according to claim 1, characterized in that, A contraction portion (26) is symmetrically provided on the side of the base opposite to the rear limiting portion (25).

4. The hollow positioning and clamping fixture for irregularly shaped parts according to claim 3, characterized in that, The outer wall of the contraction part (26) is an arc-shaped smooth surface.

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