Positioning tool

Abstract

The positioning tool comprises a tool supporting base, a positioning tool platform comprises a mounting frame, a sliding rail assembly, a first clamping assembly and a second clamping assembly, the sliding rail assembly is connected with the mounting frame, and the first clamping assembly and the second clamping assembly are connected with the sliding rail assembly. The first clamping assembly and the second clamping assembly can move in the first direction and the second direction, the second clamping assembly can further move in the third direction, and the first clamping assembly and the second clamping assembly are used for positioning and fixing a machined part. The positions of the first clamping assembly and the second clamping assembly can be adjusted according to the positioning requirement of a machined part, the applicability is wide, positioning is accurate, and the machining quality is improved.

Description

Technical Field

[0001] This application relates to the field of machining technology, specifically to a positioning fixture for high-frequency machining equipment. Background Technology

[0002] High-frequency machining equipment is widely used in many fields such as electronics, electrical appliances, and refrigeration. In the high-frequency machining process, accurate positioning of the workpiece is crucial to ensuring machining quality. If the workpiece is not positioned accurately, it can easily cause machining position deviation, which may result in defects such as under-machining or over-machining, directly affecting the machining quality and reducing the reliability and service life of the product. Utility Model Content

[0003] In view of this, this application provides a positioning fixture, which is mainly used for positioning workpieces to solve the problem of inaccurate positioning of workpieces, resulting in deviations in the machining position.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution:

[0005] This application provides a positioning fixture, which includes a positioning fixture platform, the positioning fixture platform comprising:

[0006] Mounting rack;

[0007] A slide rail assembly, which is connected to the mounting bracket;

[0008] A first clamping assembly and a second clamping assembly are respectively connected to the slide rail assembly, and the first clamping assembly and the second clamping assembly are movable in a first direction and a second direction. The second clamping assembly is also movable in a third direction. The first clamping assembly and the second clamping assembly are used to position and fix the workpiece.

[0009] Wherein, the first direction is the length extension direction of the mounting bracket, the second direction is the width extension direction of the mounting bracket, and the third direction is a direction perpendicular to the first direction and the second direction.

[0010] In some embodiments, the first clamping assembly includes a base plate, a first guide rod, a second guide rod, a first V-shaped guide block, an elastic element, a first pressure plate, and a locking element;

[0011] The base plate is connected to the slide rail assembly. The first guide rod and the second guide rod are respectively connected to the side of the base plate facing away from the slide rail assembly. The elastic element is sleeved on the first guide rod and the second guide rod. The first V-shaped guide block is movably sleeved on the first guide rod and the second guide rod, so that the elastic element is located between the base plate and the first V-shaped guide block. The first pressure plate is movably sleeved on the first guide rod. The locking element is used to lock the first pressure plate.

[0012] In some embodiments, there are two first guide rods and two second guide rods, with the two first guide rods respectively disposed on one set of diagonals of the base plate and the two second guide rods respectively disposed on another set of diagonals of the base plate. There are multiple elastic elements, which are respectively sleeved on each of the first guide rods and each of the second guide rods. The two ends of the first pressure plate are respectively sleeved on the two first guide rods.

[0013] In some embodiments, the first clamping assembly further includes a flat washer, the locking element is a nut, the flat washer is sleeved on the first guide rod and located on the side of the first pressure plate opposite to the first V-shaped guide block, and the nut is threadedly connected to the first guide rod and located on the side of the flat washer opposite to the first pressure plate.

[0014] In some embodiments, the positioning tooling platform further includes a guide component connected to the slide rail component and movable in the first direction and the second direction, and a second clamping component connected to the guide component and movable upward along the third direction of the guide component.

[0015] In some embodiments, the guide assembly includes a guide shaft and a connecting block, the guide shaft being connected to the slide rail assembly and movable along the slide rail assembly, the connecting block being slidably connected to the guide shaft, and the second clamping assembly being connected to the connecting block.

[0016] In some embodiments, the second clamping assembly includes a second V-shaped guide block, a rotating shaft, a limiting plate, a hexagonal handle, and a second pressure plate;

[0017] The second V-shaped guide block is connected to the connecting block, the rotating shaft is rotatably connected to the second V-shaped guide block, the limiting plate is connected to the rotating shaft, the hexagonal handle is threadedly connected to the limiting plate, and the second pressure plate is connected to the hexagonal handle.

[0018] In some embodiments, the rotating shaft is rotatably connected to one corner of the second V-shaped guide block, one end of the limiting plate is connected to the rotating shaft, and the other end of the limiting plate is connected to the hexagonal handle.

[0019] In some embodiments, the slide rail assembly includes a first slide rail, a second slide rail, and a third slide rail. The first slide rail and the second slide rail are respectively connected to the mounting bracket, and the third slide rail is slidably connected to the first slide rail. The length of the first slide rail extends along the length direction of the mounting bracket, and the lengths of the second slide rail and the third slide rail extend along the width direction of the mounting bracket.

[0020] The first clamping assembly is provided in multiple parts, some of the first clamping assemblies are connected to the first slide rail, some of the first clamping assemblies are connected to the third slide rail, the guide assembly is connected to the second slide rail, and the second clamping assembly is connected to the guide assembly.

[0021] In some embodiments, the positioning fixture further includes a fixture support base and a positioner, wherein the positioner is mounted on the fixture support base and the positioning fixture platform is mounted on the positioner.

[0022] In some embodiments, the positioning fixture further includes a plurality of casters, each of which is connected to the bottom of the mounting frame.

[0023] The positioning fixture of this application includes a positioning fixture platform, which comprises a mounting frame, a slide rail assembly, a first clamping assembly, and a second clamping assembly. The first and second clamping assemblies are respectively connected to the slide rail assembly and are movable in a first direction and a second direction. The second clamping assembly is also movable in a third direction. The first and second clamping assemblies are used to position and fix the workpiece. Compared with the prior art, this application can adjust the positions of the first and second clamping assemblies according to the positioning requirements of the workpiece, which has wide applicability, accurate positioning, and improves processing quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the positioning fixture provided in an embodiment of this application.

[0025] Figure 2 This is a side view of the positioning fixture provided in an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the positioning tooling platform provided in an embodiment of this application.

[0027] Figure 4 This is a top view of the positioning tooling platform provided in an embodiment of this application.

[0028] Figure 5 An exploded perspective view of the positioning tooling platform provided in the embodiments of this application.

[0029] Figure 6A perspective view of the first clamping component provided in an embodiment of this application.

[0030] Figure 7 An exploded perspective view of the first clamping component provided in an embodiment of this application.

[0031] Figure 8 A perspective view of the second clamping component provided in an embodiment of this application.

[0032] Figure 9 An exploded perspective view of the second clamping component provided in an embodiment of this application.

[0033] Attached image labels:

[0034] 1. Tooling support base; 2. Positioner; 3. Positioning tooling platform; 30. Fixing hole; 31. Mounting bracket; 32. Slide rail assembly; 321. First slide rail; 322. Second slide rail; 323. Third slide rail; 324. Slider; 325. Support beam welded assembly; 326. Support component; 33. Guide assembly; 331. Guide shaft; 332. Connecting block; 34. First clamping assembly; 341. Base plate; 342. First guide rod; 343. Second guide rod. 344. First V-shaped guide block; 345. Elastic element; 346. First pressure plate; 347. Locking element; 348. Flat washer; 349. First shaft elastic retaining ring; 35. Second clamping assembly; 351. Second V-shaped guide block; 352. Rotating shaft; 353. Limiting plate; 354. Hexagonal handle; 355. Second pressure plate; 356. Second shaft elastic retaining ring; 4. Caster; 5. Screw assembly; 100. First copper tube; 200. Second copper tube. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0038] For the machining of small-sized parts (such as welding), the machining fixtures need to be designed to be more miniaturized in order to accurately position and process these small parts. For example, for the connection between the capillary tube and the evaporator in the field of household air conditioning, the positioning structure of the special machining fixture must be able to accurately fit the small diameter of the capillary tube and the interface of the evaporator to ensure accurate machining position.

[0039] In related technologies, machining fixtures are often designed for specific products or processes, resulting in poor versatility. Although fixtures offer some adjustability, they are generally difficult to fully adapt to all sizes, shapes, and types of workpieces. When products are upgraded, significant adjustments or redesigns and remanufacturing of the fixtures may be required, increasing production costs and management complexity. Moreover, machining fixtures are primarily used for processing small-sized workpieces and generally cannot meet the processing needs of large-sized workpieces across different product categories, thus exhibiting certain limitations. Based on this, the inventors of this application propose a positioning fixture for high-frequency machining equipment to achieve accurate positioning and rapid clamping of workpieces of varying sizes (e.g., medium-diameter and large-diameter metal pipes), thereby improving processing efficiency and ensuring processing quality.

[0040] Reference Figure 1 and Figure 2As shown, an embodiment of this application discloses a positioning fixture, which includes a fixture support base 1, a positioner 2, a positioning fixture platform 3, and multiple casters 4. The positioner 2 can be connected to the fixture support base 1 via a screw assembly, and the positioning fixture platform 3 can be connected to the positioner 2 via a screw assembly. The fixture support base 1 is mainly used to fix and support the positioner 2 and the positioning fixture platform 3. The positioner 2 is mainly used to position and rotate the positioning fixture platform 3 to obtain an ideal processing position. The positioning fixture platform 3 is mainly used to clamp and fix the workpiece, which can be, for example, a metal pipe, including copper pipe, to achieve accurate positioning of the metal pipe. For example, when welding a metal pipe, the positioning fixture platform 3 can be used to clamp and fix the metal pipe, and then welding tools can be used to weld the metal pipe. The multiple casters 4 are respectively connected to the bottom of the fixture support base 1. When moving the positioning fixture, simply pushing the positioning fixture is sufficient to move the fixture, facilitating the switching of the fixture between different work areas. For example, four casters 4 may be provided, and the four casters 4 may be connected to the four corners of the bottom of the tooling support base 1 by screw assembly 5 respectively.

[0041] Reference Figure 3 and Figure 4 As shown, the positioning fixture platform 3 includes a mounting frame 31, a slide rail assembly 32, a guide assembly 33, a first clamping assembly 34, and a second clamping assembly 35. The mounting frame 31 is connected to the positioner 2. The slide rail assembly 32 is connected to the mounting frame 31 via screws. The first clamping assembly 34 is connected to the slide rail assembly 32 and is movable along the slide rail assembly 32 in a first and second direction. The guide assembly 33 is connected to the slide rail assembly 32 and is movable along the slide rail assembly 32 in both the first and second directions. The second clamping assembly 35 is connected to the guide assembly 33 and is movable along the guide assembly 33 in a third direction, thus enabling the second clamping assembly 35 to move in the first, second, and third directions. The first clamping assembly 34 and the second clamping assembly 35 are used to position and fix the workpiece for processing.

[0042] Wherein, the first direction is the length extension direction of the mounting bracket ( Figure 1 The X direction in the middle), the width extension direction of the second direction mounting bracket ( Figure 1 The Y direction in the equation), the third direction is the direction perpendicular to the first direction and the second direction (in the equation). Figure 1 The Z-direction in the equation (the first direction, the second direction, and the third direction) are perpendicular to each other.

[0043] The positioning fixture platform 3 in this embodiment can quickly position the workpiece to ensure accurate positioning. In conjunction with the use of a positioner, it can realize the positioning and rotation of the positioning fixture platform 3 to obtain the ideal processing position and ensure the processing quality of the high-frequency processing equipment. The first clamping assembly 34 and the second clamping assembly 35 can adjust their positions according to the positioning needs of the workpiece. They have wide applicability and accurate positioning, which further improves the processing quality.

[0044] In some embodiments, the screw assembly may include a rivet nut, and the mounting bracket 31 is provided with a fixing hole 30. The rivet nut can pass through the fixing hole 30 and be connected to the positioner 2, thereby realizing the connection between the positioning tooling platform 3 and the positioner 2.

[0045] Reference Figure 5 As shown, the mounting frame 31 has a rectangular structure, and the slide rail assembly 32 includes a first slide rail 321, a second slide rail 322, a third slide rail 323, and multiple sliders 324. Multiple first slide rails 321, second slide rails 322, and third slide rails 323 are provided. Multiple first slide rails 321 are connected to the mounting frame 31 and are spaced apart along the width direction of the mounting frame 31, with their lengths extending along the length direction of the mounting frame 31. Multiple second slide rails 322 are connected to the mounting frame 31 and are spaced apart along the length direction of the mounting frame 31, with their lengths extending along the width direction of the mounting frame 31. Multiple third slide rails 323 are slidably connected to the first slide rails 321, with their lengths extending along the width direction of the mounting frame 31, and are capable of sliding along the length direction of the first slide rails 321. Each slider 324 is slidably connected to the first slide rail 321, the second slide rail 322, and the third slide rail 323, allowing the slider 324 to move freely and flexibly on these rails. Each slider 324 also has a locking function. Multiple first clamping assemblies 34 and second clamping assemblies 35 are provided. Some first clamping assemblies 34 are connected to the slider 324 located on the first slide rail 321, allowing them to slide along the length of the first slide rail 321. Some first clamping assemblies 34 are connected to the slider 324 located on the third slide rail 323, allowing them to slide along the length of the third slide rail 323. A guide assembly 33 is connected to the slider 324 located on the second slide rail 322, allowing it to slide along the length of the second slide rail 322. Second clamping assemblies 35 are connected to the guide assembly 33 and can move on the guide assembly 33.

[0046] For example, there may be two slide rails 321, two slide rails 322 and two slide rails 323 respectively. The two first slide rails 321 are located on both sides of the mounting bracket 31, the two second slide rails 322 are located at both ends of the mounting bracket 31, and the two ends of the two third slide rails 323 are connected to the two first slide rails 321 respectively.

[0047] In some embodiments, multiple guide components 33 and second clamping components 35 are provided. Some guide components 33 are connected to a slider 324 located on a first slide rail 321, allowing some guide components 33 to slide along the length of the first slide rail 321. Some guide components 33 are also connected to a slider 324 located on a second slide rail 322, allowing some guide components 33 to slide along the length of the second slide rail 322. Multiple second clamping components 35 are respectively connected to multiple guide components 33, and each second clamping component 35 is movable on the guide components 33, thereby enabling the second clamping components 35 to move upwards in a first direction, a second direction, and a third direction.

[0048] In some embodiments, the slide rail assembly 32 further includes a support beam welded assembly 325 and a support member 326. The support beam welded assembly 325 can be connected to the slider 324 located on the first slide rail 321 via a screw assembly, and the third slide rail 323 can be connected to the support beam welded assembly 325 via a screw assembly. The support member 326 can be connected to the slider 324 located on the first slide rail 321 via a screw assembly, and the first clamping assembly 34 can be connected to the support member 326 via a screw assembly, or the first clamping assembly 34 can also be directly connected to the slider 324 located on the third slide rail 323.

[0049] Continue to refer to Figure 5 As shown, each guide assembly 33 includes a guide shaft 331 and a connecting block 332. The guide shaft 331 can be connected to the slider 324 located on the second slide rail 322 via a screw assembly, allowing the guide shaft 331 to move along the length of the second slide rail 322. The connecting block 332 is slidably connected to the guide shaft 331, allowing the connecting block 332 to move and rotate freely on the guide shaft 331, and the connecting block 332 has a locking function. The second clamping assembly 35 is connected to the connecting block 332.

[0050] Reference Figure 6 and Figure 7As shown, each first clamping assembly 34 includes a base plate 341, a first guide rod 342, a second guide rod 343, a first V-shaped guide block 344, an elastic element 345, a first pressure plate 346, and a locking element 347. The base plate 341 can be connected to the slider 324. The first guide rod 342 and the second guide rod 343 are respectively connected to the side of the base plate 341 facing away from the slider 324. The elastic element 345 is sleeved on the first guide rod 342 and the second guide rod 343. The first V-shaped guide block 344 is movably sleeved on the first guide rod 342 and the second guide rod 343, so that the elastic element 345 is located between the base plate 341 and the first V-shaped guide block 344. The first pressure plate 346 is movably sleeved on the first guide rod 342, and the locking element 347 is used to lock the first pressure plate 346. The elastic element 345 can be a spring, and the locking element 347 can be a nut, such as a wing nut. The first clamping assembly 34 in this embodiment can adjust multiple nuts to make the first V-shaped guide blocks at different positions at the same horizontal position, or it can compress the elastic element 345 to different positions to clamp workpieces of different sizes.

[0051] In some embodiments, each first clamping assembly 34 includes two first guide rods 342, two second guide rods 343, and four elastic members 345. The two first guide rods 342 are respectively disposed on one set of diagonals of the base plate 341, and the two second guide rods 343 are respectively disposed on another set of diagonals of the base plate 341, so that the four guide rods are symmetrically arranged. The four elastic members 345 are respectively sleeved on each first guide rod 342 and each second guide rod 343. A first V-shaped guide block 344 can be sleeved on each first guide rod 342 and each second guide rod 343. The two ends of the first pressure plate 346 are respectively sleeved on the two first guide rods 342. In this embodiment, the combination of the first V-shaped guide block 344 and the first pressure plate 346 can achieve three-point positioning of the workpiece (the workpiece has two contacts with the first V-shaped guide block and one contact with the first pressure plate, thus achieving three-point positioning). By adjusting the compression of the elastic member 345, workpieces of different sizes can be clamped to achieve accurate positioning of workpieces of different sizes. The structure of the first pressure plate 346 can realize quick clamping and disassembly of the workpiece. The locking member 347 can fix and limit the first pressure plate 346.

[0052] In some embodiments, the first guide rod 342 and the second guide rod 343 can be welded and fixed to the base plate 341.

[0053] In this embodiment, each first clamping assembly 34 further includes a flat washer 348 and a first shaft elastic retaining ring 349. The flat washer 348 is sleeved on the first guide rod 342 and located on the side of the first pressure plate 346 facing away from the first V-shaped guide block 344. A nut is threaded to the first guide rod 342 and located on the side of the flat washer 348 facing away from the first pressure plate 346. The first shaft elastic retaining ring 349 is connected to the end of the second guide rod 343 near the first V-shaped guide block 344, and is used to limit the movement of the first V-shaped guide block 344.

[0054] Continue to refer to Figure 8 and Figure 9 As shown, each second clamping assembly 35 includes a second V-shaped guide block 351, a rotating shaft 352, a limiting plate 353, a hexagonal handle 354, and a second pressure plate 355. The second V-shaped guide block 351 is connected to the connecting block 332, allowing the second V-shaped guide block 351 to move axially along the guide shaft 331. The rotating shaft 352 is rotatably connected to the second V-shaped guide block 351, the limiting plate 353 is connected to the rotating shaft 352, the hexagonal handle 354 is connected to the limiting plate 353, and the second pressure plate 355 is connected to the hexagonal handle 354.

[0055] In some embodiments, one end of the rotating shaft 352 can be welded and fixed to the limiting plate 353, and the other end of the rotating shaft 352 can be connected to the second V-shaped guide block 351 through a shaft hole engagement, and the rotating shaft 352 is limited and fixed by the second shaft elastic retaining ring 356. The hexagonal handle 354 can be threaded into the limiting plate 353, and the second pressure plate 355 is connected to the hexagonal handle 354 through a shaft hole engagement, and is limited and fixed by the second shaft elastic retaining ring 356. Exemplarily, when positioning the metal tube, the positions of the first clamping assembly 34 and the second clamping assembly 35 can be adjusted according to the outer dimensions of the first copper tube 100 and the second copper tube 200, and after adjustment, the corresponding slider 324 or connecting block 332 is in a locked state.

[0056] In some embodiments, the rotating shaft 352 is rotatably connected to one corner of the second V-shaped guide block 351, one end of the limiting plate 353 is connected to the rotating shaft 352, and the other end of the limiting plate 353 is connected to the hexagonal handle 354.

[0057] This embodiment utilizes the different compression amounts of the elastic elements 345 of each first clamping assembly 34 to achieve a flexible design of the first clamping assembly 34, thereby enabling rapid clamping and disassembly of processed parts of different sizes (such as medium and large diameter metal pipes).

[0058] In practical applications, we will take the positioning of copper pipes as an example for illustration, and continue to refer to... Figure 3As shown, the first copper tube 100 and the second copper tube 200 can be placed in the V-groove of the first V-shaped guide block 344 first. Then, the nut can be adjusted to move the flat washer 348 and the first pressure plate 346, so that the first pressure plate 346 presses the upper surface of the first copper tube 100 and the second copper tube 200, thereby driving the first copper tube 100, the second copper tube 200, and the first V-shaped guide block 344 to compress the elastic element 345 to a suitable position to achieve a fixed limiting effect. At the same time, one end of the first copper tube 100 can be placed in the V-groove of the second V-shaped guide block 351, and then the hexagonal handle 354 can be adjusted to drive the second pressure plate 355 to press on the surface of the first copper tube 100, thereby achieving a fixed limiting effect.

[0059] In the entire positioning fixture, the metal tube can be fixed on the first clamping assembly 34 and the second clamping assembly 35. Then, by adjusting the positioner 2, the positioning fixture platform 3 can be rotated to the optimal position for processing, thereby ensuring processing quality. In this embodiment, the positioning fixture platform 3 can realize the rapid clamping and limiting fixation of the metal tube, and the first clamping assembly 34 can realize the limiting fixation of metal tubes of different specifications and large diameters.

[0060] This application solves the problem that existing high-frequency machining fixtures cannot accurately position and fix the workpieces, and further solves the problem of the difficulty in machining workpieces of different sizes. Compared with the prior art, the positioning fixture of this embodiment is used in high-frequency machining equipment, which not only ensures the machining quality of workpieces of different sizes, but also improves the overall machining efficiency, and can achieve significant results.

[0061] The above description is merely a preferred embodiment of this application, but the scope of protection of this application 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 application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A positioning tooling, characterized in that, The positioning fixture platform includes: Mounting rack; A slide rail assembly, which is connected to the mounting bracket; A first clamping assembly and a second clamping assembly are respectively connected to the slide rail assembly, and the first clamping assembly and the second clamping assembly are movable in a first direction and a second direction. The second clamping assembly is also movable in a third direction. The first clamping assembly and the second clamping assembly are used to position and fix the workpiece. Wherein, the first direction is the length extension direction of the mounting bracket, the second direction is the width extension direction of the mounting bracket, and the third direction is a direction perpendicular to the first direction and the second direction.

2. The positioning fixture according to claim 1, characterized in that, The first clamping assembly includes a base plate, a first guide rod, a second guide rod, a first V-shaped guide block, an elastic element, a first pressure plate, and a locking element; The base plate is connected to the slide rail assembly. The first guide rod and the second guide rod are respectively connected to the side of the base plate facing away from the slide rail assembly. The elastic element is sleeved on the first guide rod and the second guide rod. The first V-shaped guide block is movably sleeved on the first guide rod and the second guide rod, so that the elastic element is located between the base plate and the first V-shaped guide block. The first pressure plate is movably sleeved on the first guide rod. The locking element is used to lock the first pressure plate.

3. The positioning fixture according to claim 2, characterized in that, Two first guide rods and two second guide rods are provided. The two first guide rods are respectively located on one set of diagonals of the base plate, and the two second guide rods are respectively located on another set of diagonals of the base plate. Multiple elastic elements are provided, and the multiple elastic elements are respectively sleeved on each of the first guide rods and each of the second guide rods. The two ends of the first pressure plate are respectively sleeved on the two first guide rods.

4. The positioning fixture according to claim 3, characterized in that, The first clamping assembly further includes a flat washer, and the locking element is a nut. The flat washer is sleeved on the first guide rod and located on the side of the first pressure plate opposite to the first V-shaped guide block. The nut is threadedly connected to the first guide rod and located on the side of the flat washer opposite to the first pressure plate.

5. The positioning fixture according to claim 1, characterized in that, The positioning tooling platform further includes a guide component, which is connected to the slide rail component and is movable in the first direction and the second direction. The second clamping component is connected to the guide component and is movable upward along the third direction of the guide component.

6. The positioning fixture according to claim 5, characterized in that, The guide assembly includes a guide shaft and a connecting block. The guide shaft is connected to the slide rail assembly and is movable along the slide rail assembly. The connecting block is slidably connected to the guide shaft. The second clamping assembly is connected to the connecting block.

7. The positioning fixture according to claim 6, characterized in that, The second clamping assembly includes a second V-shaped guide block, a rotating shaft, a limiting plate, a hexagonal handle, and a second pressure plate; The second V-shaped guide block is connected to the connecting block, the rotating shaft is rotatably connected to the second V-shaped guide block, the limiting plate is connected to the rotating shaft, the hexagonal handle is threadedly connected to the limiting plate, and the second pressure plate is connected to the hexagonal handle.

8. The positioning fixture according to claim 7, characterized in that, The rotating shaft is rotatably connected to one corner of the second V-shaped guide block, one end of the limiting plate is connected to the rotating shaft, and the other end of the limiting plate is connected to the hexagonal handle.

9. The positioning fixture according to claim 5, characterized in that, The slide rail assembly includes a first slide rail, a second slide rail, and a third slide rail. The first slide rail and the second slide rail are respectively connected to the mounting bracket. The third slide rail is slidably connected to the first slide rail. The length of the first slide rail extends along the length direction of the mounting bracket, and the lengths of the second slide rail and the third slide rail extend along the width direction of the mounting bracket. The first clamping assembly is provided in multiple parts, some of the first clamping assemblies are connected to the first slide rail, some of the first clamping assemblies are connected to the third slide rail, the guide assembly is connected to the second slide rail, and the second clamping assembly is connected to the guide assembly.

10. The positioning fixture according to any one of claims 1 to 9, characterized in that, The positioning fixture also includes a fixture support base and a positioner, the positioner being mounted on the fixture support base and the positioning fixture platform being mounted on the positioner.

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