Clamping and positioning die

Abstract

The utility model belongs to the technical field of contact element detection, and discloses a clamping and positioning die. The clamping and positioning die comprises a mounting base, a moving part and a contact profiling block, wherein the mounting base is provided with a limiting chute; the moving piece is arranged in the limiting sliding groove and can move in the limiting sliding groove, and a limiting part is arranged on the moving piece; the contact element can be arranged on the contact profiling block in a sleeving mode, one end of the contact profiling block is connected with the installation base, the other end of the contact profiling block is used for supporting the contact element, the shape of the contact profiling block is matched with that of the contact element, and the moving part moves in the limiting sliding groove. And the limiting part and the other end of the contact profiling block are used for clamping the contact element or loosening the contact element. According to the utility model, the positioning stability of the contact element can be ensured, and the position deviation of the contact element can be avoided during the shearing force detection after the welding of the contact.

Description

Technical Field

[0001] This utility model relates to the field of contact element detection technology, and in particular to clamping and positioning molds. Background Technology

[0002] Contact elements are the core components of low-voltage electrical switches, and their failure signifies the end of the switch's service life. Typically, the welding quality, especially the welding strength, of the contact elements largely determines their lifespan.

[0003] To improve the welding quality of contact assemblies in low-voltage electrical switches, a comprehensive inspection of the contact welding quality is necessary. This inspection should be followed by analysis and comparison to identify various factors affecting welding quality. This allows for further improvement of welding methods and adjustment of welding parameters until satisfactory welding quality is achieved. In the production process of miniature circuit breakers, the quality inspection of contact points after welding is a crucial step in ensuring product performance and safety.

[0004] Currently, the primary support method for inspecting welded contact components is to lift them. During testing, the contact components are highly susceptible to positional shift when subjected to the force of a punch. This shift directly leads to significant deviations in the shear force measurement results, failing to accurately reflect the actual shear force performance of the contact. Inaccurate measurement results not only affect the judgment of product quality but may also result in substandard products entering the market, posing potential safety hazards to users. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping and positioning mold that can ensure the stable positioning of the contact element and prevent the contact element from shifting position during shear force testing after contact welding.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Clamping and positioning mold, including:

[0008] Mounting base, wherein the mounting base is provided with a limiting groove;

[0009] A movable component is disposed within the limiting slide groove and is capable of moving within the limiting slide groove; the movable component is provided with a limiting part.

[0010] A contact contour block, one end of which is connected to the mounting base, and the other end of which is used to support the contact element. The shape of the contact contour block is adapted to the contact element. The moving member moves within the limiting groove to clamp or release the contact element between the limiting part and the other end of the contact contour block.

[0011] As an optional solution of the clamping positioning mold, the clamping positioning mold further comprises:

[0012] An elastic member, two ends of the elastic member are connected with the moving member and the mounting base respectively, and the elastic member is used to make the limiting part always have a tendency to be close to the other end of the contact profile block to clamp the contact element.

[0013] As an optional solution of the clamping positioning mold, a containing groove is arranged on the limiting part, and the clamping positioning mold further comprises:

[0014] A positioning plug plate, the containing groove is penetrated by the positioning plug plate, and two ends of the positioning plug plate are connected with two side walls of the limiting sliding groove opposite to each other, the elastic member is located in the containing groove, and two ends of the elastic member are abutted with a groove wall of the containing groove and the positioning plug plate respectively.

[0015] As an optional solution of the clamping positioning mold, a first insertion hole is arranged on the first side wall of the limiting sliding groove, and one end of the positioning plug plate is inserted into the first insertion hole; and / or

[0016] A second insertion hole is arranged on the second side wall of the limiting sliding groove, and the other end of the positioning plug plate is inserted into the second insertion hole.

[0017] As an optional solution of the clamping positioning mold, the positioning plug plate is provided with a first positioning column, a second positioning column is arranged on the groove wall of the containing groove, and two ends of the elastic member are sleeved on the first positioning column and the second positioning column respectively.

[0018] As an optional solution of the clamping positioning mold, one end of the contact profile block is connected with the first side wall of the limiting sliding groove, a avoiding notch is arranged on the second side wall of the limiting sliding groove, an opening area of the avoiding notch is greater than a cross-sectional area of the contact profile block, the other end of the contact profile block is penetrated through the avoiding notch, and the limiting part is arranged on one side of the contact profile block.

[0019] As an optional solution of the clamping positioning mold, the limiting sliding groove is in T shape and comprises a horizontal groove and a vertical groove which are communicated with each other, the moving member is slidingly arranged in the horizontal groove of the limiting sliding groove, and the limiting part and the other end of the contact profile block are arranged in the vertical groove of the limiting sliding groove.

[0020] As an optional solution of the clamping positioning mold, a positioning surface is arranged on one side of the limiting part which faces the contact profile block, the positioning surface is matched with the shape of the contact element, and a limiting clamping space is formed between the positioning surface and the contact profile block.

[0021] As an optional solution of the clamping positioning mold, one end of the contact profile block is detachably connected with the mounting base.

[0022] As the optional solution of clamping and positioning mold, the assembly block is fixed on the contact profiled block, the installation groove is arranged on the installation base, and the assembly block is inserted into the installation groove.

[0023] Compared with the prior art, the utility model has the advantages of:

[0024] The clamping and positioning mold is provided, the contact profiled block capable of placing the contact element is connected on the installation base, the contact profiled block is matched with the shape of the corresponding contact element, and the position of the contact element is defined through the shape of the contact profiled block. The limiting sliding groove is formed on the installation base, the moving piece with the limiting part is located in the limiting sliding groove and can move in the limiting sliding groove. Pushing the moving piece close to the contact profiled block can clamp the contact element, so that the position of the contact element on the clamping and positioning mold is fixed, the positioning stability of the contact element can be guaranteed, and the position deviation of the contact element is avoided during the shear force detection after contact welding. After detection is completed, the moving piece is reversely pushed to release the contact element. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the installation schematic view of the contact element installed to the clamping and positioning mold in the embodiment of the utility model;

[0026] Figure 2 It is the assembly schematic view of the clamping and positioning mold in the embodiment of the utility model;

[0027] Figure 3 It is the structural schematic view of the installation base in the embodiment of the utility model;

[0028] Figure 4 It is the explosion schematic view of the clamping and positioning mold in the embodiment of the utility model;

[0029] Figure 5 It is the structural schematic view of the clamping and positioning mold after the second side wall is removed in the embodiment of the utility model.

[0030] In the drawing:

[0031] 100, clamping and positioning mold; 200, contact element; 201, contact point;

[0032] 1, installation base; 2, moving piece; 3, contact profiled block; 4, elastic piece; 5, positioning plugboard; 6, assembly block; 61, polygonal hole;

[0033] 11, first side wall; 111, first insertion hole; 112, installation groove; 12, second side wall; 121, second insertion hole; 122, avoiding notch; 13, limiting sliding groove;

[0034] 21, limiting part; 211, positioning surface; 212, accommodating groove. DETAILED DESCRIPTION

[0035] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the embodiment, the terms "upper", "lower", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0039] In order to ensure the positioning stability of the contact element, avoid the position deviation of the contact element during the shear force detection after the contact welding, the embodiment provides a clamping and positioning mold, which will be described below in combination with Figures 1 to 5 The specific content of the embodiment will be described in detail. It should be noted that the first direction mentioned in the embodiment is the X direction in Figure 1

[0040] As shown in Figures 1 to 4 ​As shown, the clamping positioning mold 100 in the embodiment includes a mounting base 1, a moving piece 2 and a contact profiling block 3. The mounting base 1 has a first side wall 11 and a second side wall 12 arranged at intervals, and a limiting sliding groove 13 extending in a first direction is formed between the first side wall 11 and the second side wall 12. The moving piece 2 is arranged in the limiting sliding groove 13 and can move in the first direction in the limiting sliding groove 13, and the moving piece 2 has a limiting portion 21. The contact element 200 can be sleeved on the contact profiling block 3, one end of the contact profiling block 3 is connected with the first side wall 11 of the mounting base 1, the other end of the contact profiling block 3 is used for supporting the contact element 200, the shape of the contact profiling block 3 is matched with the contact element 200, and when the moving piece 2 moves in the limiting sliding groove 13, the limiting portion 21 is used for clamping or releasing the contact element 200 with the other end of the contact profiling block 3.

[0041] The clamping positioning mold 100 provided by the embodiment, by arranging the first side wall 11 and the second side wall 12 on the mounting base 1, arranging the contact profiling block 3 capable of placing the contact element 200 on the first side wall 11, and matching the shape of the contact profiling block 3 with the corresponding contact element 200, the position of the contact element 200 is limited by the shape of the contact profiling block 3. The limiting sliding groove 13 is formed between the first side wall 11 and the second side wall 12 of the mounting base 1, and the moving piece 2 with the limiting portion 21 is located in the limiting sliding groove 13 and can move in the first direction in the limiting sliding groove 13. Pushing the moving piece 2 close to the contact profiling block 3 can clamp the contact element 200, fix the position of the contact element 200 on the clamping positioning mold 100, and ensure the positioning stability of the contact element 200, so as to avoid the position deviation of the contact element 200 during the shear force detection after the contact point 201 is welded. After the detection is completed, the moving piece 2 is pushed in the reverse direction to release the contact element 200.

[0042] Further, as shown in the drawings, Figure 4 In combination with Figure 5 As shown, the clamping positioning mold 100 further includes an elastic member 4, both ends of the elastic member 4 are connected with the moving piece 2 and the mounting base 1 respectively, and the elastic member 4 is used for making the limiting portion 21 always have a tendency to approach the other end of the contact profiling block 3 to clamp the contact element 200. When it is needed to install the contact element 200, the moving piece 2 is pressed to move in the reverse direction of the first direction, at this time, the elastic member 4 is shortened, the spacing between the limiting portion 21 on the moving piece 2 and the contact profiling block 3 is increased, and the contact element 200 is facilitated to be installed on the contact profiling block 3. The moving piece 2 is released, the moving piece 2 approaches the contact element 200 on the contact profiling block 3 in the first direction under the action of the elastic member 4, and finally the contact element 200 is compressed.

[0043] Further, the limiting part 21 is provided with a containing groove 212 extending along the first direction, the clamping and positioning mold 100 further comprises a positioning plug plate 5, the positioning plug plate 5 penetrates the containing groove 212 and is connected with the opposite side walls (the first side wall 11 and the second side wall 12) of the limiting slide groove 13 at both ends respectively, and the elastic member 4 is located in the containing groove 212 and abuts against the groove wall of the containing groove 212 and the positioning plug plate 5 at both ends respectively. The positioning plug plate 5 is installed between the first side wall 11 and the second side wall 12, penetrates the containing groove 212 in the limiting part 21, and is installed at a specific position of the clamping and positioning mold 100 through the positioning plug plate 5, and the main function is to limit the position of the elastic member 4, so that the elastic member 4 is slightly compressed in the initial state. This design determines a suitable initial position of the moving part 2 (part of the moving part 2 protrudes out of the limiting slide groove 13 of the mounting base 1), which is convenient for subsequent operation of pushing the moving part 2 in the reverse direction along the first direction. Exemplarily, the positioning plug plate 5 is provided with a first positioning column, the groove wall of the containing groove 212 is provided with a second positioning column, and the both ends of the elastic member 4 are sleeved on the first positioning column and the second positioning column respectively, which can prevent the elastic member 4 from deviating or falling off during work, and ensure the reliability of the clamping and positioning mold 100.

[0044] Exemplarily, the first side wall 11 of the limiting slide groove 13 is provided with a first insertion hole 111, and one end of the positioning plug plate 5 is inserted into the first insertion hole 111; and / or the second side wall 12 of the limiting slide groove 13 is provided with a second insertion hole 121, and the other end of the positioning plug plate 5 is inserted into the second insertion hole 121. Through the insertion of both ends of the positioning plug plate 5 with the first side wall 11 and the second side wall 12, the installation stability of the positioning plug plate 5 is ensured.

[0045] Optionally, one end of the contact profiling block 3 is connected with the first side wall 11 of the limiting slide groove 13, the second side wall 12 of the limiting slide groove 13 is provided with an avoiding notch 122, the opening area of the avoiding notch 122 is greater than the cross-sectional area of the contact profiling block 3, the other end of the contact profiling block 3 penetrates the avoiding notch 122, and the limiting part 21 is arranged on one side of the contact profiling block 3. By adding the avoiding notch 122, it is convenient to install the contact element 200 from the second side wall 12 to the first side wall 11, and the structural interference between the contact element 200 and the second side wall 12 is avoided.

[0046] Further, the limiting slide groove 13 is T-shaped and comprises a horizontal groove and a vertical groove which are communicated with each other, the moving part 2 is slidingly arranged in the horizontal groove of the limiting slide groove 13, and the other end of the contact profiling block 3 and the limiting part 21 are arranged in the vertical groove of the limiting slide groove 13. By designing the limiting slide groove 13 and the moving part 2 as T-shaped, the rotation of the moving part 2 relative to the mounting base 1 can be limited, and the normal linear sliding of the moving part 2 in the limiting slide groove 13 is ensured.

[0047] Further, the limiting part 21 is provided with a positioning surface 211 on the side facing the contact profiling block 3, the positioning surface 211 is matched with the shape of the contact element 200, and the limiting part 21 and the contact profiling block 3 form a limiting clamping space. The positioning surface 211 of the limiting part 21 abuts against the outer wall surface of the contact element 200, and the contact profiling block 3 abuts against the inner wall surface of the contact element 200. In this embodiment, the positioning surface 211 on the side of the limiting part 21 facing the contact profiling block 3 is V-shaped, which improves the positioning accuracy.

[0048] Further, one end of the contact profiling block 3 is detachably connected with the first side wall 11 of the mounting base 1. Since the contact profiling block 3 is detachably connected, it is convenient to replace the corresponding contact profiling block 3 according to the type of the contact element 200, thereby improving the versatility of the clamping and positioning mold 100. Figures 2 to 4 As shown in the figure, a mounting block 6 is fixedly sleeved on the contact profiling block 3, and the first side wall 11 of the mounting base 1 has a mounting groove 112, and the mounting block 6 is inserted into the mounting groove 112. The mounting block 6 and the contact profiling block 3 work in combination and bear the contact element 200 of different shapes and structures. The contact profiling block 3 is designed according to the shape characteristics of various contact elements 200 and can tightly fit the contact element 200 to provide stable support. The mounting block 6 stably mounts the contact profiling block 3 on the mounting base 1 to ensure the stability of the combined part during the measurement process. By replacing the mounting block 6 and the contact profiling block 3 of different specifications, the clamping and positioning mold 100 can adapt to contact elements 200 of various shapes, greatly improving the versatility of the clamping and positioning mold 100.

[0049] Further, the mounting block 6 has a polygonal hole 61, and one end of the contact profiling block 3 is inserted into the polygonal hole 61. The polygonal hole 61 and the one end of the contact profiling block 3 are inserted and connected, which can prevent the contact profiling block 3 from rotating relative to the mounting block 6 and ensure the stability of the mounting of the contact profiling block 3.

[0050] The working principle of the clamping and positioning mold 100 in this embodiment is as follows: the mounting base 1 serves as the basic support structure of the entire positioning mold and provides an installation carrier for other parts. Its design fully considers the strength and stability requirements and can maintain the integrity of the structure under the action of various external forces, thereby ensuring the accuracy of the relative positions of the parts of the positioning mold during the working process and providing a stable foundation for accurate measurement. The moving part 2 and the elastic part 4 jointly constitute the key contact positioning assembly. One end of the elastic part 4 is connected with the positioning insert plate 5, and the other end of the elastic part 4 abuts against the groove wall of the receiving groove 212 of the moving part 2. Referring to Figure 2As shown, in operation, when an external force is applied to the moving piece 2, the elastic piece 4 is compressed, and the moving piece 2 is displaced to the left, which provides space for placing the to-be-tested sample contact element 200. After the sample is placed, the external force is removed, and the elastic piece 4 pushes the moving piece 2 to reset based on the elastic rebound force of the elastic piece 4, so as to firmly clamp the contact element 200, and ensure that the contact element 200 does not displace during the shear force measurement, thereby providing guarantee for accurate measurement.

[0051] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fixture for clamping and positioning a mold, characterized by, The device comprises: a mounting base (1) provided with a limiting sliding groove (13); a moving piece (2) arranged in the limiting sliding groove (13) and capable of moving in the limiting sliding groove (13), the moving piece (2) being provided with a limiting part (21); a contact profiled block (3) having one end connected with the mounting base (1) and the other end used for supporting a contact element (200), the contact profiled block (3) being shaped to match the contact element (200), the moving piece (2) moving in the limiting sliding groove (13) to make the limiting part (21) clamp or unclamp the contact element (200) with the other end of the contact profiled block (3).

2. The fixture of claim 1 wherein, The clamping and positioning mold further comprises: a resilient piece (4) having two ends connected with the moving piece (2) and the mounting base (1) respectively, the resilient piece (4) being used to make the limiting part (21) always have a tendency to approach the other end of the contact profiled block (3) to clamp the contact element (200).

3. The fixture of claim 2 wherein, The limiting part (21) is provided with a containing groove (212), and the clamping and positioning mold further comprises: a positioning plug-in plate (5) penetrating the containing groove (212) and having two ends connected with two side walls of the limiting sliding groove (13) respectively, the resilient piece (4) being located in the containing groove (212) and having two ends abutting against the groove wall of the containing groove (212) and the positioning plug-in plate (5) respectively.

4. The fixture of claim 3 wherein, The first side wall (11) of the limiting sliding groove (13) is provided with a first plug-in hole (111), and one end of the positioning plug-in plate (5) is inserted into the first plug-in hole (111); and / or The second side wall (12) of the limiting sliding groove (13) is provided with a second plug-in hole (121), and the other end of the positioning plug-in plate (5) is inserted into the second plug-in hole (121).

5. The fixture of claim 3 wherein, The positioning plug-in plate (5) is provided with a first positioning column, the groove wall of the containing groove (212) is provided with a second positioning column, and the two ends of the resilient piece (4) are sleeved on the first positioning column and the second positioning column respectively.

6. The fixture of claim 1 wherein, One end of the contact profiled block (3) is connected with the first side wall (11) of the limiting sliding groove (13), the second side wall (12) of the limiting sliding groove (13) is provided with an avoiding notch (122), the opening area of the avoiding notch (122) is greater than the cross-sectional area of the contact profiled block (3), the other end of the contact profiled block (3) penetrates the avoiding notch (122), and the limiting part (21) is arranged on one side of the contact profiled block (3).

7. The fixture of claim 6 wherein, The limiting sliding groove (13) is T-shaped and comprises a horizontal groove and a vertical groove which are communicated with each other, the moving piece (2) is slidingly arranged in the horizontal groove of the limiting sliding groove (13), and the other end of the contact profiled block (3) and the limiting part (21) are both arranged in the vertical groove of the limiting sliding groove (13).

8. The fixture of claim 1 wherein, The limiting part (21) is provided with a positioning surface (211) on one side of the contact profiled block (3), the positioning surface (211) is matched with the shape of the contact element (200), and the positioning surface (211) and the contact profiled block (3) form a limiting clamping space.

9. The fixture of any one of claims 1-8, wherein, One end of the contact profiled block (3) is detachably connected with the mounting base (1).

10. The fixture of claim 9, wherein, A mounting block (6) is fixedly sleeved on the contact profiled block (3), and the mounting base (1) is provided with a mounting groove (112), and the mounting block (6) is inserted into the mounting groove (112).

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