A positioning jig

Abstract

The utility model provides a kind of positioning fixture, it is related to production tooling technical field, solve the technical problem of low efficiency of manual placement capacitor, cannot be quickly positioned accurately.The positioning fixture, including fixed base, first limiting structure, positioning module and second limiting structure;First limiting structure is set on fixed base, for the first degree of freedom of the product to be positioned is limited;Second limiting structure is detachably pressed on the top of the product to be positioned, for the second degree of freedom of the product to be positioned is limited;Positioning module is arranged between fixed base and second limiting structure, for the third degree of freedom of the product to be positioned is limited and positioned.The utility model can quickly realize positioning, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of production tooling technology, and in particular to a positioning fixture for quickly and accurately positioning products. Background Technology

[0002] Currently, the production process for DCH series capacitors requires quick and accurate positioning of the capacitors before soldering. Currently, this is done manually by placing the capacitors in the soldering position, which is inefficient and cannot achieve quick and accurate positioning.

[0003] To improve production efficiency, there is an urgent need to develop a positioning fixture that can quickly and accurately position capacitors. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture for quickly and accurately positioning products, so as to solve the technical problems of low efficiency and inability to quickly and accurately position capacitors by manual placement in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a positioning clamp, comprising a fixed base, a first limiting structure, a positioning module, and a second limiting structure; wherein:

[0007] The first limiting structure is disposed on the fixed base and is used to limit the first degree of freedom of the product to be positioned;

[0008] The second limiting structure is detachably pressed onto the top of the product to be positioned, and is used to limit the second degree of freedom of the product to be positioned;

[0009] The positioning module is disposed between the fixed base and the second limiting structure, and is used to limit and position the product to be positioned with a third degree of freedom.

[0010] The positioning fixture provided by this utility model can realize the first degree of freedom limitation of the product to be positioned by setting a first limiting structure on the fixed base, realize the second degree of freedom limitation of the product by setting a second limiting structure, and realize the third degree of freedom limitation and positioning of the product by setting a positioning module. It can quickly realize positioning, improve production efficiency, solve the problem of inaccurate spot welding position of the product, and solve the problem of inaccurate and slow positioning of the product by manual placement.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] As a further improvement of this utility model, the first limiting structure includes baffles spaced apart on the fixed base.

[0013] This invention uses a limiting groove formed between two baffles to allow the product to be locked in the limiting groove between the baffles, thereby achieving horizontal limiting of the product.

[0014] As a further improvement of this utility model, the height of the baffle is lower than the height of the product to be positioned.

[0015] Considering cost factors, using a baffle lower than the product height for horizontal limiting not only achieves the limiting function but also saves costs and facilitates the insertion and removal of the product.

[0016] As a further improvement of this utility model, the second limiting structure includes an upper pressure plate, a positioning pin hole, and a first positioning pin; wherein:

[0017] The positioning pin hole is formed on the fixed base;

[0018] The first positioning pin is fixed to the bottom of the upper pressure plate; when the upper pressure plate presses down on the top of the product to be positioned, the first positioning pin passes into the positioning pin hole.

[0019] This utility model employs a positioning pin hole on a fixed base, and a first positioning pin is fixed on the upper pressure plate. When the upper pressure plate is pressing on the top of the product, the first positioning pin is inserted into the positioning pin hole, thereby achieving connection, fixation and positioning between the upper pressure plate and the fixed base, and preventing the upper pressure plate from moving or misaligning.

[0020] As a further improvement of this utility model, the positioning module includes a lower positioning post, a positioning part, and an upper positioning post; wherein:

[0021] The lower positioning pin is fixed on the fixed base;

[0022] The positioning part is located on the top of the lower positioning post and is used for the positioning hole of the product to be positioned to pass through.

[0023] The upper positioning post is fixed to the bottom of the upper pressure plate;

[0024] The upper positioning post has a perforation at its end that matches the specifications of the positioning part.

[0025] This utility model features a lower positioning post on a fixed base, a necked positioning part on the top of the lower positioning post, and an upper positioning post with a through hole fixed at the bottom of the upper pressure plate. In use, the product's built-in positioning hole is inserted into the positioning part, and then the through hole of the upper positioning post is inserted into the positioning part. This positioning module not only achieves accurate and rapid positioning of the product, but also positions and fixes the upper pressure plate, preventing misalignment between the product and the upper pressure plate and ensuring accurate welding position.

[0026] As a further improvement of this utility model, the number of positioning modules is at least one set, and all the positioning modules are set on one side of the product to be positioned.

[0027] This utility model achieves positioning and fixing of the product at different positions by setting multiple positioning modules, enabling rapid positioning of multiple positions of the product, and can quickly and accurately position and limit the product to prevent movement during the welding process.

[0028] As a further improvement of this utility model, it also includes a protective plate that is fitted onto the outside of the product to be positioned for product protection.

[0029] This utility model, by setting a protective plate to wrap around the outside of the product and using the protective plate to lock between the baffles, not only protects the product's appearance and prevents it from being damaged, but also standardizes the product's shape and ensures the locking effect.

[0030] As a further improvement of this utility model, the protective plate has a U-shaped structure and wraps around three sides of the product to be positioned; the inner length of the opening of the protective plate is equal to the width of the product to be positioned, and the outer length of the opening of the protective plate is equal to the distance between the two baffles.

[0031] As a further improvement of this utility model, it also includes a locking component movably disposed on the fixed base for locking the position of the second limiting structure.

[0032] By setting a locking component, the upper pressure plate and the fixed seat can be clamped together, ensuring stability during welding.

[0033] As a further improvement of this utility model, the locking assembly includes a fixed clamp and a spring latch;

[0034] in:

[0035] The fixing clamps are disposed on both sides of the first limiting structure;

[0036] The spring-loaded latch is movably located on the top of the fixed clamp.

[0037] This invention achieves multi-position fixation of the product by setting multiple spring buckles on both sides of the product to lock the upper pressure plate from different positions on the product.

[0038] As a further improvement of this utility model, the spring buckle is a stainless steel spring buckle.

[0039] As a further improvement of this utility model, it also includes a through-hole opened on the fixed base and the second limiting structure, the through-hole being configured to correspond to the welding position on the product to be positioned.

[0040] This invention provides a through-hole in the fixed base and the second limiting structure, which corresponds precisely to the spot welding position on the product. This allows for rapid positioning of the spot welding position and enables rapid welding at the spot welding position, thereby improving production efficiency. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the positioning fixture of this utility model in use;

[0043] Figure 2 This is a schematic diagram of the structure of the fixed seat in the positioning fixture of this utility model;

[0044] Figure 3 This is a schematic diagram of the upper pressure plate in the positioning fixture of this utility model;

[0045] Figure 4 This is a schematic diagram of the structure of the protective plate in the positioning fixture of this utility model;

[0046] Figure 5 This is a structural schematic diagram of a product to be positioned processed in the positioning fixture of this utility model;

[0047] Figure 6 This is a schematic diagram of the spring latch in the positioning fixture of this utility model.

[0048] In the diagram: 1. Fixed base; 2. Lower positioning post; 3. Upper pressure plate; 4. Upper positioning post; 5. Fixed clamp seat; 6. Spring buckle; 7. Product to be positioned; 8. Product pressure plate; 9. Protective plate; 10. Baffle; 11. First positioning pin; 12. Through hole; 13. Positioning pin hole; 14. Positioning part; 15. Product core; 16. Product copper busbar; 17. Built-in positioning hole. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0050] like Figures 1-6 As shown, this utility model provides a positioning fixture for positioning a product 7 to be positioned, and then welding the weld points of the product 7 to be positioned; specifically, the positioning fixture includes a fixed base 1, a first limiting structure, a positioning module, and a second limiting structure; wherein:

[0051] The first limiting structure is set on the fixed base 1 and is used to limit the lower part of the product 7 to be positioned in the first degree of freedom; specifically, the first degree of freedom is the horizontal X-axis direction;

[0052] The second limiting structure is detachable and press-fitted on the top of the product 7 to be positioned, and is used to limit the second degree of freedom of the product 7 to be positioned; specifically, the second degree of freedom is the vertical Z-axis direction;

[0053] The positioning module is positioned between the fixed base 1 and the second limiting structure to limit and position the product 7 to be positioned in the third degree of freedom. Specifically, the third degree of freedom is the horizontal Y-axis direction; in this embodiment, the positioning module also simultaneously realizes the limiting and positioning in the horizontal X-axis and vertical Z-axis directions.

[0054] The positioning fixture provided by this utility model can realize the first degree of freedom limitation of the product 7 to be positioned by setting a first limiting structure on the fixed base 1, realize the second degree of freedom limitation of the product by setting a second limiting structure, and realize the third degree of freedom limitation and positioning of the product by setting a positioning module. It can quickly realize positioning, improve production efficiency, solve the problem of inaccurate spot welding position of the product, and solve the problem of inaccurate and slow positioning of the product by manual placement.

[0055] As an optional embodiment of this utility model, the first limiting structure includes baffles 10 spaced apart on the fixed base 1.

[0056] It should be noted that, as Figure 2 As shown, in order to facilitate the smooth insertion of the product 7 to be positioned, a guide slope is provided on the top of the baffle 10.

[0057] This utility model forms a limiting groove between two baffles 10, which allows the product to be stuck in the limiting groove between the baffles 10, thereby achieving horizontal limiting of the product.

[0058] To save costs, the height of the baffle 10 is lower than the height of the product 7 to be positioned. The baffle 10 only needs to block the lower part of the product 7 to be positioned by a certain height.

[0059] Considering cost factors, using a baffle 10 that is lower than the product height for horizontal limiting not only achieves the limiting function but also saves costs and facilitates the insertion and removal of the product.

[0060] like Figure 2 and Figure 3As shown, as a further improvement of this utility model, the second limiting structure includes an upper pressure plate 3, a positioning pin hole 13, and a first positioning pin 11; wherein:

[0061] The locating pin hole 13 is formed on the fixed seat 1;

[0062] The first positioning pin 11 is fixed at the bottom of the upper pressure plate 3; when the upper pressure plate 3 presses down on the top of the product 7 to be positioned, the first positioning pin 11 passes into the positioning pin hole 13.

[0063] It should be noted that, in order to facilitate insertion, the bottom of the first positioning pin 11 has an arc-shaped end face or a semi-circular end. This structure facilitates the insertion of the first positioning pin 11.

[0064] This utility model employs a positioning pin hole 13 on the fixed base 1 and a first positioning pin fixed on the upper pressure plate 3. When the upper pressure plate 3 presses down on the top of the product, the first positioning pin is inserted into the positioning pin hole 13, thereby achieving connection, fixation and positioning between the upper pressure plate 3 and the fixed base 1, and preventing the upper pressure plate 3 from moving or misaligning.

[0065] Furthermore, in this embodiment, as Figures 1-3 As shown, the positioning module includes a lower positioning post 2, a positioning part 14, and an upper positioning post 4; wherein:

[0066] The lower positioning pin 2 is fixed on the fixed base 1;

[0067] The positioning part 14 is disposed on the top of the lower positioning post 2 for the product 7 to be positioned to pass through its own positioning hole 17. It should be noted that in this embodiment, the positioning part 14 is a necked structure with a diameter smaller than that of the lower positioning post 2. In addition, in order to facilitate the passage of the upper positioning post 4 and the own positioning hole 17, the top of the positioning part 14 is provided with a sloping guide.

[0068] The upper positioning post 4 is fixed to the bottom of the upper pressure plate 3;

[0069] The upper positioning post 4 has a through hole at its end that matches the specifications of the positioning part 14. The diameter of the upper positioning post 4 is equal to the diameter of the lower positioning post 2, and the diameter of the through hole is equal to the diameter of the positioning part 14.

[0070] This utility model provides a lower positioning post 2 on a fixed base 1, a necked positioning part 14 on the top of the lower positioning post 2, and an upper positioning post 4 with a through hole fixed at the bottom of the upper pressure plate 3. In use, the product's built-in positioning hole 17 is inserted into the positioning part 14, and then the through hole of the upper positioning post 4 is inserted into the positioning part 14. This positioning module not only achieves accurate and rapid positioning of the product, but also positions and fixes the upper pressure plate 3, preventing the product and the upper pressure plate 3 from shifting and ensuring accurate welding position.

[0071] To ensure the positioning effect, in this embodiment, the number of positioning modules is at least one set, and all positioning modules are set on one side of the product 7 to be positioned.

[0072] like Figure 2 As shown, there are four sets of positioning modules, which are divided into two groups, with each group consisting of two sets of positioning modules. This multi-point positioning structure ensures stable positioning of the product 7 to be positioned.

[0073] This utility model achieves positioning and fixing of the product at different positions by setting multiple positioning modules, enabling rapid positioning of multiple positions of the product, and can quickly and accurately position and limit the product to prevent movement during the welding process.

[0074] like Figure 1 and Figure 4 As shown, as a further improvement of this utility model, it also includes a protective plate 9 that is sleeved on the outside of the product 7 to be positioned for product protection.

[0075] In this embodiment, the product 7 to be positioned includes a product core 15, a product copper busbar 16, and a product pressure plate 8. The product core 15 is located at the bottom of the product pressure plate 8, and the product copper busbar 16 is installed beside the product core 15 and connected to the product pressure plate 8. The product copper busbar 16 has a built-in positioning hole 17 at the bottom. The product core 15 is cylindrical in shape, and when it is engaged with the baffle 10, there is a small contact surface, which makes it easy to be not firmly engaged. Therefore, the engagement stability is improved by setting the protective plate 9.

[0076] This utility model, by setting a protective plate 9 to wrap around the outside of the product and using the protective plate 9 to lock between the baffles 10, not only ensures the appearance of the product and prevents it from being damaged, but also standardizes the shape of the product and ensures the locking effect.

[0077] like Figure 4 As shown, as a further improvement of this utility model, the guard plate 9 has a U-shaped structure and wraps around the three sides of the product 7 to be positioned; the inner length of the opening of the guard plate 9 is equal to the width of the product 7 to be positioned, and the outer length of the opening of the guard plate 9 is equal to the distance between the two baffles 10.

[0078] Furthermore, the ends of the two walls of the guard plate 9 have arc-shaped guide surfaces, making it easier to insert the product 7 to be positioned.

[0079] like Figure 1 and Figure 6 As shown, as a further improvement of this utility model, it also includes a locking component movably mounted on the fixed base 1 for locking the position of the second limiting structure.

[0080] By setting a locking component, the upper pressure plate 3 and the fixed seat 1 can be clamped together to ensure stability during welding.

[0081] Specifically, the locking assembly includes a fixing clip 5 and a spring latch 6; wherein:

[0082] The fixing bracket 5 is set on both sides of the first limiting structure;

[0083] The spring latch 6 is movably positioned on top of the fixed clamp 5.

[0084] It should be noted that the spring latch 6 is an existing technology product, purchased from the market.

[0085] This invention achieves multi-position fixation of the product by setting multiple spring buckles 6 on both sides of the product to lock the upper pressure plate 3 from different positions on the product.

[0086] In this embodiment, the spring latch 6 is a stainless steel spring latch 6.

[0087] To facilitate welding, a through-hole 12 is also included in the fixing base 1 and the second limiting structure. The through-hole 12 is set to correspond to the welding position on the product 7 to be positioned, so as to expose the welding point; for example Figure 2 and Figure 3 As shown, there are 12 through-holes in total. After the positioning clamps are installed, they can... Figure 5 A total of 24 weld points are exposed on both sides, and then the equipment performs spot welding. That is to say, when the product 7 to be positioned is fixed by the positioning fixture, all the spot welding positions on it are exactly aligned with the through-hole 12, so that all welding can be completed through the through-hole 12.

[0088] This utility model provides a through-hole 12 on the fixed base 1 and the second limiting structure. The through-hole 12 corresponds exactly to the spot welding position on the product, thereby enabling rapid positioning of the spot welding position on the product. The through-hole 12 enables rapid welding of the spot welding position, thus improving production efficiency.

[0089] The method of using the positioning clamp of this utility model is as follows:

[0090] The following explanation uses the capacitor core (product 7) as an example. When using the positioning fixture for the capacitor core, first, the protective plate 9 is clipped onto the side of the product core 15. Then, the capacitor core with the protective plate 9 is placed between the two baffles 10, and the product's own positioning hole 17 is inserted into the positioning part 14 at the top of the lower positioning post 2 for product positioning. Next, the upper pressure plate 3 is placed on the capacitor core, and the four upper positioning posts 4 are inserted into the four lower positioning posts 2. The first positioning pin 11 is inserted into the positioning pin hole 13 of the fixing base 1 for positioning. Finally, the stainless steel spring buckle 6 fixed to the fixing clamp 5 is fastened to the upper pressure plate 3 to ensure that the product can be accurately positioned without deviation.

[0091] Throughout the operation, ensure that the pressure applied by the fixture is evenly distributed on the capacitor core to prevent the capacitor core from shifting and causing poor welding in the next welding step if it is not properly secured. Once the capacitor core is secured, subsequent double-sided welding can be performed. During this process, the positioning fixture maintains stable fixation of the capacitor core until the process is completed. Then, release the stainless steel spring latch 6, remove the upper pressure plate 3, and take out the capacitor core, completing the first positioning welding of the capacitor core.

[0092] Its working principle is based on the mechanical clamping force and the positioning principle of the guide rod, which ensures that the capacitor core remains fixed in the set position and posture, thereby ensuring the accuracy and stability of the production process and improving product quality and production efficiency.

[0093] First, it should be noted that "inward" refers to the direction towards the center of the storage space, while "outward" refers to the direction away from the center of the storage space.

[0094] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0096] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0097] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0098] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0099] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A positioning fixture, characterized in that, It includes a fixed base, a first limiting structure, a positioning module, and a second limiting structure; wherein: The first limiting structure is disposed on the fixed base and is used to limit the first degree of freedom of the product to be positioned; The second limiting structure is detachably pressed onto the top of the product to be positioned, and is used to limit the second degree of freedom of the product to be positioned; The positioning module is disposed between the fixed base and the second limiting structure, and is used to limit and position the product to be positioned with a third degree of freedom.

2. The positioning fixture according to claim 1, characterized in that, The first limiting structure includes baffles spaced apart on the fixed base.

3. The positioning fixture according to claim 2, characterized in that, The height of the baffle is lower than the height of the product to be positioned.

4. The positioning fixture according to claim 1, characterized in that, The second limiting structure includes an upper pressure plate, a positioning pin hole, and a first positioning pin; wherein: The positioning pin hole is formed on the fixed base; The first positioning pin is fixed to the bottom of the upper pressure plate; when the upper pressure plate presses down on the top of the product to be positioned, the first positioning pin passes into the positioning pin hole.

5. The positioning fixture according to claim 4, characterized in that, The positioning module includes a lower positioning post, a positioning part, and an upper positioning post; wherein: The lower positioning pin is fixed on the fixed base; The positioning part is located on the top of the lower positioning post and is used for the positioning hole of the product to be positioned to pass through. The upper positioning post is fixed to the bottom of the upper pressure plate; The upper positioning post has a perforation at its end that matches the specifications of the positioning part.

6. The positioning fixture according to claim 5, characterized in that, The number of positioning modules is at least one set, and all of the positioning modules are set on one side of the product to be positioned.

7. The positioning fixture according to claim 2, characterized in that, It also includes protective plates that are fitted onto the outside of the product to be positioned for product protection.

8. The positioning fixture according to claim 7, characterized in that, The protective plate has a U-shaped structure and wraps around three sides of the product to be positioned; the inner length of the opening of the protective plate is equal to the width of the product to be positioned, and the outer length of the opening of the protective plate is equal to the distance between the two baffles.

9. The positioning fixture according to claim 1, characterized in that, It also includes a locking component that is movably mounted on the fixed base for locking the position of the second limiting structure.

10. The positioning fixture according to claim 9, characterized in that, The locking assembly includes a fixing clip and a spring latch; wherein: The fixing clamps are disposed on both sides of the first limiting structure; The spring-loaded latch is movably located on the top of the fixed clamp.

11. The positioning fixture according to claim 1, characterized in that, It also includes through openings formed on the fixed base and the second limiting structure, the through openings being configured to correspond to the welding positions on the product to be positioned.

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