Assembly tool suitable for electroplating flower basket clamping elastic piece

Abstract

The utility model belongs to the technical field of electroplating, and particularly relates to an assembling tool suitable for an electroplating flower basket clamping elastic piece, which structurally comprises a fixing part, a clamping part and a clamping part, a shaft end positioning groove is formed in the shaft end positioning block, and the pressing direction of the pressing device points to the shaft end positioning block; the calibration part comprises a calibration base arranged between the shaft end positioning block and the pressing device, the calibration base is at least provided with a horizontal upper surface, and a plurality of groups of calibration grooves are formed in the upper surface; and the shaft end positioning groove and the calibration groove are matched to form a limiting structure for limiting the relative position of the rod tool to be assembled and the integrated clamping elastic sheet. The device can be suitable for various working conditions, and covers all processing flows of connected elastic sheet assembly, including screening of workpiece precision before assembly, correction of assembly point positions during assembly, detection of assembly precision after assembly, and detection of assembly consistency among different rod tools.

Description

Technical Field

[0001] This utility model belongs to the field of electroplating technology, specifically relating to an assembly tooling for an electroplated flower basket-type integrated clamping spring. Background Technology

[0002] Electroplating basket clamping equipment incorporates a clamping structure for holding silicon wafers. This clamping structure typically consists of two clamping springs positioned on either side of the wafer. If the stress distribution on the two sides of the wafer is inconsistent, the wafer may fracture due to asymmetrical internal stress. Therefore, the clamping springs require high assembly precision. In Chinese patent CN117305956A, the inventors proposed an electroplating basket clamping equipment. This equipment's clamping structure includes movable clamping springs on a movable rod and fixed clamping springs on a fixed rod, with the silicon wafer clamped between the movable and fixed clamping springs. In this electroplating basket clamping structure, consistency is required not only between clamping springs mounted on the same rod but also between movable and fixed clamping springs mounted on different rods. Current assembly processes involve assembly followed by inspection, with problematic clamps being replaced or adjusted based on the inspection results. This process is relatively complex and inefficient. Furthermore, the rods are relatively long and susceptible to slight deformation, introducing additional uncertainties into the assembly process. Utility Model Content

[0003] This invention aims to provide an assembly fixture suitable for electroplated basket clamping springs. The fixture can perform in-situ inspection before assembly to promptly remove unqualified clamping springs; after assembly, it can perform in-situ secondary inspection to check the consistency between assemblies and improve assembly efficiency.

[0004] This utility model is achieved through the following technical solution:

[0005] An assembly fixture suitable for an integrated clamping spring clip for electroplated flower baskets, characterized in that it comprises:

[0006] The fixing part includes a shaft end positioning block and a clamping device; the shaft end positioning block is provided with a shaft end positioning groove, and the clamping direction of the clamping device is directed towards the shaft end positioning block;

[0007] The calibration unit includes a calibration base disposed between the shaft end positioning block and the clamping device, the calibration base having at least a horizontal upper surface, and multiple sets of calibration grooves formed on the upper surface;

[0008] The shaft end positioning groove and the calibration groove cooperate to form a structure that defines the relative position of the rod to be assembled and the integrated clamping spring.

[0009] Preferably, the clamping direction is aligned with the axial direction of the rod to be assembled.

[0010] Preferably, the shaft end positioning groove has a top opening and a side opening, with the side opening facing the direction of the clamping device.

[0011] Preferably, the shaft end positioning groove has an internal shape that matches the circumferential contour of the rod to be assembled.

[0012] Preferably, the fixing part further includes an auxiliary positioning groove, the height of which is adapted to the height of the shaft end positioning groove.

[0013] Preferably, the auxiliary positioning groove extends in the same direction as the pressing direction and has an internal shape that matches the circumferential contour of the rod to be assembled.

[0014] Preferably, several calibration slots are arranged at intervals along the axial direction of the rod to be assembled on the calibration base, and the spacing between adjacent calibration slots is adapted to the spacing between the clamping ends of the integrated clamping spring.

[0015] Preferably, the calibration base is provided with two rows of calibration slots, which are symmetrically distributed on both sides of the axial direction of the rod to be assembled.

[0016] Preferably, the width of the calibration groove is adapted to the axial length of the clamping end of the integrated clamping spring.

[0017] Preferably, the depth of the calibration groove is adapted to the radial length of the clamping end of the integrated clamping spring.

[0018] This invention is adapted to integrated clamping springs, but due to its high assembly precision, it is also compatible with assembling ordinary clamping springs with only one clamping rod. This invention uses a shaft-end positioning groove and a clamping device to control the posture of the rod to be assembled, and uses the spacing, width, and depth of the calibration groove to control the posture of the clamping spring. The relative positional relationship between the rod to be assembled and the clamping spring is corrected through the spatial matching relationship between the shaft-end positioning groove and the calibration groove. This invention is applicable to various working conditions, covering the entire processing flow of integrated spring assembly, including pre-assembly workpiece precision screening, assembly point correction during assembly, post-assembly precision testing, and testing the assembly consistency between different rods. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the idle state of this utility model (including the positioning block);

[0020] Figure 2 This is a schematic diagram of the working state of this utility model (including the positioning block);

[0021] Figure 3 This is a schematic diagram of the idle state of this utility model (excluding the positioning block);

[0022] Figure 4 This is a schematic diagram of a one-piece clamping device for holding shrapnel.

[0023] Legend:

[0024] 1. Shaft end positioning block; 1.1. Shaft end positioning groove;

[0025] 2. Clamping device;

[0026] 3. Calibration base; 3.1. Calibration slot; 3.2. Auxiliary positioning slot; 3.3. Positioning block;

[0027] 4. Rods to be assembled; 4.1. Assembly surfaces;

[0028] 5. Integrated clamping spring; 5.1 Connecting part; 5.11 Fixing hole; 5.2 Clamping rod; 5.3 Clamping end. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0030] This utility model has high assembly precision and is suitable for assembling both integrated clamping springs 5 ​​and non-integrated clamping springs with only one clamping rod 5.2. Figure 4 Examples of two types of integrated clamping springs 5 ​​(hereinafter referred to as "integrated springs 5") in different embodiments are given, and the two specific shapes are labeled as integrated spring 5(a) and integrated spring 5(b). The integrated spring 5 has a flat and elongated connecting portion 5.1, which can conform to the mounting surface 4.1 of the rod to be assembled along its length direction. A fixing hole 5.11 is provided on the connecting portion 5.1, and the integrated spring 5 and the rod to be assembled are fixed together by fasteners. The connecting portion 5.1 is connected to a clamping rod 5.2, which extends away from the plane of the connecting portion 5.1 and forms a specific angle with the plane of the connecting portion 5.1. The end of the clamping rod 5.2 extending in the direction of extension is bent to form a clamping end 5.3, the axis of which is parallel to the plane of the connecting portion 5.1 and the rod to be assembled. Figure 4 The example shown is a one-piece clamping spring 5 with two clamping rods 5.2; in an alternative embodiment, each connecting part 5.1 may connect more than two clamping rods 5.2. Example

[0031] Please see Figure 1 , Figure 2 and Figure 3 This utility model uses a fixing part to position the rod to be assembled 4. In this embodiment, the rod to be assembled 4 is a hexagonal rod-shaped movable rod, and the corresponding clamping spring has the following shape. Figure 4 The integrated spring clip 5(a) shown in the diagram. The base of the tooling is a long and narrow square base plate, with a shaft end positioning block 1 and a clamping device 2 connected to both ends of the base plate, respectively. The distance between the two is adapted to the length of the rod 4 to be assembled. The clamping direction of the clamping device 2 points towards the shaft end positioning block 1. The shaft end positioning block 1 has a shaft end positioning groove 1.1, the opening direction of the shaft end positioning groove 1.1 includes the top direction and the direction of the clamping device 2, and the shape of the shaft end positioning groove 1.1 is adapted to the circumferential contour of the hexagonal bar. During the assembly process, the two ends of the rod 4 to be assembled are fixed by the shaft end positioning groove 1.1 and the clamping device 2 respectively, keeping the rod horizontal; the inner contour of the shaft end positioning groove 1.1 plays a role in controlling the posture of the rod, so that the two assembly surfaces 4.1 of the rod 4 to be assembled are perpendicular to the horizontal plane.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This invention uses a calibration unit to position the integrated spring piece 5. The calibration base 3 of the calibration unit is located in the area between the shaft end positioning block 1 and the clamping device 2; the calibration base 3 has a horizontal upper surface with multiple sets of calibration grooves 3.1. The spatial position and structural features of the calibration grooves 3.1 are adapted to the installation position of the integrated spring piece 5 on the rod to be assembled 4. Firstly, the calibration grooves 3.1 are arranged side-by-side, with the two rows of grooves 3.1 located in the areas facing the two assembly surfaces 4.1 of the rod to be assembled, supporting simultaneous assembly of the integrated spring piece 5 on both sides. Secondly, the distance between the two calibration grooves 3.1 is adapted to the distance between the two clamping parts, and the end width of a single clamping part is adapted to the width of a single positioning groove, determining the relative position of the integrated spring piece 5 and the rod to be assembled in the horizontal direction, aligning them and preventing wobbling. Third, the depth of the calibration groove 3.1 is adapted to the bottom height of the shaft end positioning groove 1.1 and the auxiliary positioning groove 3.2, so that the height of the integrated spring piece 5 and the assembly surface 4.1 of the rod to be assembled is aligned in the vertical direction.

[0033] Some rods are made of materials with insufficient hardness, making them prone to twisting or bending in the middle section. In a preferred embodiment, an auxiliary positioning groove 3.2 is formed on the calibration base 3. The extension direction of the auxiliary positioning groove 3.2 is aligned with the axial direction of the rod 4 to be assembled, which is used to enhance the positioning of the rod 4 to be assembled. In some embodiments, the auxiliary positioning groove 3.2 is directly formed on the upper surface of the calibration base 3; in other embodiments, the calibration base 3 is provided with a groove such as... Figure 1 , Figure 2 The positioning block 3.3 shown has an auxiliary positioning groove 3.2 on its surface. The positioning block 3.3 provides a height position correction function for the rod 4 to be assembled.

[0034] This utility model is applicable to various working conditions and covers the entire processing flow of the assembly of the integrated spring clip 5: 1) screening the workpiece precision before assembly; 2) correcting the assembly points during assembly; 3) detecting the assembly accuracy after assembly; 4) detecting the consistency of different rods after assembly.

[0035] In use, place the rod to be assembled 4 into the auxiliary positioning groove 3.2 from top to bottom, with the assembly surface 4.1 in a vertical position. One end of the rod to be assembled 4 is aligned with the shaft end positioning groove 1.1, and the other end is connected to the clamping device 2. Lock the clamping device 2, and the rod to be assembled 4 is clamped and fixed between the shaft end positioning block 1 and the clamping device 2. Take the integrated spring piece 5 and place its two clamping ends 5.3 into the adjacent calibration grooves 3.1 respectively to simulate the assembly state. For the integrated spring piece 5 that meets the precision requirements, its connecting part 5.1 should naturally fit with the assembly surface 4.1, and the two clamping ends 5.3 should be on the same horizontal line and their distance should be able to fit into the edge of the adjacent calibration groove 3.1. If the integrated spring piece 5 does not meet the above requirements, it can be rejected as a defective part. If it meets the above requirements, the assembly operation can continue in its original position. During the assembly process, the calibration groove 3.1 positions the installation position of the integrated spring piece 5 and restricts its movement to prevent shaking. After assembly, remove and replace the assembled rods to check the assembly accuracy. If the integrated spring 5 fails to engage naturally into the calibration slot 3.1, it indicates a deviation in the assembly process, requiring adjustment. For a set of mutually clamping movable and fixed rods, the engagement relationship between the integrated spring 5 and the calibration slot 3.1 can also be used to check the assembly positioning consistency between different rods.

Claims

1. An assembly tool for clamping a spring sheet of a plating basket, characterized by, The utility model relates to a kind of rod assembly jig, including: Fixed part, including shaft end positioning block (1) and compression device (2);Shaft end positioning groove (1.1) is opened on the shaft end positioning block (1), and the compression direction of the compression device (2) is directed to the shaft end positioning block (1); Calibration part, including the calibration base (3) being arranged between shaft end positioning block (1) and compression device (2), the calibration base (3) at least has horizontal upper surface, and multiple sets of calibration grooves (3.1) are opened on the upper surface; The shaft end positioning groove (1.1) and the calibration groove (3.1) cooperate to form the limiting structure of the relative position of the rod to be assembled (4) and the integrated clamping spring (5).

2. The assembly tool of claim 1, wherein, The compression direction complies with the axial direction of the rod to be assembled (4).

3. The assembly tool of claim 2, wherein, The shaft end positioning groove (1.1) has top opening (1.11) and side opening (1.12), and the opening direction of the side opening (1.12) is towards the direction where the compression device (2) is located.

4. The assembly tool of claim 2, wherein, The shaft end positioning groove (1.1) has internal shape that is adapted to the circumferential profile of the rod to be assembled (4).

5. The assembly tool of claim 2, wherein, The fixed part further includes auxiliary positioning groove (3.2), and the height of the auxiliary positioning groove (3.2) is adapted to the height of the shaft end positioning groove (1.1).

6. The assembly tool of claim 5, wherein, The extension direction of the auxiliary positioning groove (3.2) is the same as the compression direction, and has internal shape that is adapted to the circumferential profile of the rod to be assembled (4).

7. The assembly tool of claim 2, wherein, Several calibration grooves (3.1) are arranged on the calibration base (3) along the axial direction of the rod to be assembled, and the spacing between adjacent calibration grooves (3.1) is adapted to the spacing of the clamping end (5.3) of the integrated clamping spring (5).

8. The assembly tool of claim 2, wherein, The calibration base (3) is provided with two rows of calibration grooves (3.1), and the two rows of calibration grooves (3.1) are symmetrically distributed on both sides of the axial direction of the rod to be assembled (4).

9. The assembly tool of claim 1, wherein, The width of the calibration groove (3.1) is adapted to the axial length of the clamping end (5.3) of the integrated clamping spring (5).

10. The assembly tool of claim 1, wherein, The depth of the calibration groove (3.1) is adapted to the radial length of the clamping end (5.3) of the integrated clamping spring (5).

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