Tool clamp and using method

Abstract

The invention relates to the technical field of machining, in particular to a tool clamp and a using method. The device comprises a main body unit which comprises a seat body, a first table body arranged on the seat body, a second table body arranged on one side of the first table body, two telescopic assemblies symmetrically arranged at the two ends of the first table body and the two ends of the second table body, and an adjusting assembly arranged on one side of the second table body, and the limiting pieces are arranged on the two groups of telescopic assemblies. The clamp has the beneficial effects that by arranging the adjusting assembly and the self-locking component, a to-be-machined part can be more conveniently clamped in a rotating and pressing mode, the self-locking function is achieved, the clamp can be automatically fixed after clamping operation is completed, manual maintenance is not needed, and the operation process is greatly facilitated; through the design of the cleaning assembly, it is ensured that key parts of the clamp are not affected by impurities, and the reliability and stability of the clamp are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing, in particular to a tooling fixture and a use method thereof. BACKGROUND

[0002] In modern industrial production, tooling fixtures, as key auxiliary tools in the process of mechanical processing, their performance and design play a crucial role in improving production efficiency, ensuring processing precision and reducing production cost.

[0003] In the existing tooling fixture technology, most fixtures only rely on simple mechanical structures to achieve clamping of parts, which can meet some basic needs, but still have some problems. First, the existing fixtures usually cannot achieve efficient self-locking function during clamping, which means that even after clamping operation, manual maintenance of the state of the fixture is required, increasing labor costs. Second, due to the lack of effective pressure transmission mechanism, especially when clamping parts of different thickness and length, the clamping effect is unstable, which easily leads to movement of the parts during processing, affecting the processing precision. In addition, the fixtures lacking durability and self-locking function are easily damaged during long-term use, further increasing maintenance costs. SUMMARY

[0004] In view of the above or existing problems in the prior art, the present application is proposed.

[0005] Therefore, the purpose of the present application is to provide a tooling fixture, which is capable of clamping the parts to be processed more conveniently by rotating and pressing, and has a self-locking function, so that the fixture can be automatically fixed after completing the clamping operation without manual maintenance, greatly facilitating the operation process and significantly improving the work efficiency.

[0006] To solve the above technical problems, the present application provides the following technical solutions: a tooling fixture, comprising: a main unit comprising a seat body, a first table body provided on the seat body, a second table body provided on one side of the first table body, two groups of telescopic assemblies symmetrically provided at both ends of the first table body and the second table body, an adjusting assembly provided on one side of the second table body, a limiting piece provided on the two groups of telescopic assemblies, and a cleaning assembly symmetrically provided on both sides of the adjusting assembly.

[0007] As a preferred scheme of the tooling fixture of the present application, the adjusting assembly comprises a rotating part, a rotating rod movably connected to the rotating part, and a self-locking part provided at the lower end of the rotating part.

[0008] As a preferred scheme of the tool clamp, the rotating part comprises a rotating wheel, a connecting column fixedly connected to the bottom of the rotating wheel, a movable cavity opened on the connecting column, and a movable element penetratingly arranged on the connecting column; the two ends of the horizontal axis of the rotating wheel are arranged as irregular concave parts, and the two ends of the vertical axis are arranged as irregular convex parts; the lower end of the rotating wheel is provided with two groups of arc-shaped grooves, and the groove bottoms of each group of the arc-shaped grooves are arranged as wave shapes.

[0009] The cleaning assembly comprises a ball cover in contact with the arc-shaped grooves, a wiper arranged on the periphery of the ball cover, a connecting element arranged on the inner side of the wiper, an elastic element sleeved on the connecting element, a moving column arranged on the elastic element, an inclined plate arranged on the moving column, a triangular rib arranged below the inclined plate, and a sliding block arranged at the bottom of the triangular rib.

[0010] As a preferred scheme of the tool clamp, the rotating part comprises a rotating wheel, a connecting column fixedly connected to the bottom of the rotating wheel, a movable cavity opened on the connecting column, and a movable element penetratingly arranged on the connecting column; the two ends of the horizontal axis of the rotating wheel are arranged as irregular concave parts, and the two ends of the vertical axis are arranged as irregular convex parts; the lower end of the rotating wheel is provided with two groups of arc-shaped grooves, and the groove bottoms of each group of the arc-shaped grooves are arranged as wave shapes.

[0011] As a preferred scheme of the tool clamp, the rotating part comprises a rotating wheel, a connecting column fixedly connected to the bottom of the rotating wheel, a movable cavity opened on the connecting column, and a movable element penetratingly arranged on the connecting column; the two ends of the horizontal axis of the rotating wheel are arranged as irregular concave parts, and the two ends of the vertical axis are arranged as irregular convex parts; the lower end of the rotating wheel is provided with two groups of arc-shaped grooves, and the groove bottoms of each group of the arc-shaped grooves are arranged as wave shapes.

[0012] As a preferred scheme of the tool clamp, the rotating part comprises a rotating wheel, a connecting column fixedly connected to the bottom of the rotating wheel, a movable cavity opened on the connecting column, and a movable element penetratingly arranged on the connecting column; the two ends of the horizontal axis of the rotating wheel are arranged as irregular concave parts, and the two ends of the vertical axis are arranged as irregular convex parts; the lower end of the rotating wheel is provided with two groups of arc-shaped grooves, and the groove bottoms of each group of the arc-shaped grooves are arranged as wave shapes.

[0013] As a preferred scheme of the tool clamp, the first base body comprises two groups of connecting parts symmetrically arranged at two ends of the first base body, two groups of first protection cylinders fixed on the two groups of connecting parts, and connecting holes formed in the connecting parts; the connecting shaft is inserted into the connecting holes.

[0014] As a preferred scheme of the isolator contact finger polishing device, the second base body comprises two groups of sliding parts symmetrically arranged at two ends of the second base body, second protection cylinders fixed on the two groups of sliding parts, and sliding holes formed in the sliding parts; the bearing part is embedded in the sliding holes; the second protection cylinders are slidingly connected to the first protection cylinders; the upper ends of the first base body and the second base body are fixedly installed with clamps, and the upper surfaces of the first base body and the second base body are provided with a plurality of groups of threaded holes.

[0015] As a preferred scheme of the tool clamp, the two ends of the second spring are connected to the connecting parts and the sliding parts, respectively; and the seat body is slidingly connected to the first base body and the second base body.

[0016] The application further provides a use method, which comprises the following steps:

[0017] Placing: placing a part to be machined between the first base body and the second base body;

[0018] Clamping: pressing and rotating the adjusting assembly, so that the outer wall of the adjusting assembly applies pressure to the second base body and the limiting part during rotation, and the second base body and the limiting part move towards each other under the action of the telescopic assembly, until the first base body and the second base body clamp the part to be machined;

[0019] Self-locking: releasing the adjusting assembly, so that the self-locking part in the adjusting assembly is self-locked under the action of the first spring, so that the first base body and the second base body remain in the clamped state;

[0020] Cleaning: during clamping and releasing, the cleaning assembly moves along the arc-shaped groove, and automatically removes impurities in the arc-shaped groove through cooperation of the elastic part and the scraper in the cleaning assembly; and after machining is completed, the movement of the cleaning assembly facilitates cleaning of the gap below.

[0021] The beneficial effects of the present application: by setting the telescopic assembly and bearing parts can make the first body and the second body relative movement, to ensure that the process can adapt to different thickness of parts. Adjusting assembly by rotating and vertical down pressure, so that the first body and the second body can tightly clamp parts, and through the built-in self locking parts in clamping automatically locked, prevent parts loose in the process of processing. Through the design of cleaning assembly, reduce the damage of the self locking parts of the clamp affected by impurities, improve the reliability and stability of the clamp. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0023] Figure 1 It is a schematic diagram of the overall structure of a tooling fixture.

[0024] Figure 2 It is a schematic diagram of the partial structure of a tooling fixture.

[0025] Figure 3 It is a schematic diagram of the telescopic assembly structure of a tooling fixture.

[0026] Figure 4 It is a schematic diagram of the bearing part section of a tooling fixture.

[0027] Figure 5 It is a schematic diagram of the adjusting assembly section of a tooling fixture.

[0028] Figure 6 It is a schematic diagram of the local structure of the adjusting assembly of a tooling fixture.

[0029] Figure 7 It is an exploded schematic diagram of the adjusting assembly of a tooling fixture.

[0030] Figure 8 It is a schematic diagram of the external contour of the rotating wheel of a tooling fixture.

[0031] Figure 9 It is a schematic diagram of the cleaning assembly structure of a tooling fixture.

[0032] Figure 10 It is a schematic diagram of the rotating wheel section of a tooling fixture.

[0033] Figure 11 It is a schematic diagram of the local section of the cleaning assembly of a tooling fixture. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0037] Example 1

[0038] Reference Figure 1 , which is the first embodiment of the present invention, provides a tooling fixture, which not only can more conveniently clamp the parts to be processed by rotating the adjustment component, but also can achieve a self-locking function by pressing down the adjustment component, thereby improving work efficiency and achieving a stable clamping effect.

[0039] Specifically, the device includes: a main unit 1, including a base 11, a first platform 12 arranged on the base 11, a second platform 13 arranged on one side of the first platform 12, two groups of telescopic components 14 symmetrically arranged at both ends of the first platform 12 and the second platform 13, an adjustment component 15 arranged on one side of the second platform 13, a limiter 16 arranged on the two groups of telescopic components 14, and a cleaning component 17 symmetrically arranged on both sides of the adjustment component 15.

[0040] During use, first place the part to be processed between the first table 12 and the second table 13. Secondly, press down and rotate the adjustment assembly 15. The outer wall of the adjustment assembly 15 exerts pressure on the second table 13 during the rotation process, and the outer wall of the adjustment assembly 15 also exerts pressure on the limiter 16 during the rotation process. At this time, under the action of the telescopic assembly 14, the second table 13 will move toward the direction of the first table 12, and the two will move in opposite directions; when the first table 12 and the second table 13 clamp the part to be processed, release the adjustment assembly 15 to complete the self-locking and clamping, thereby achieving stable clamping and installation; while rotating the adjustment assembly 15, the two groups of cleaning assemblies 17 arranged at the two ends below the adjustment assembly 15 move toward the edge of the base 11 respectively, playing the role of drainage and protecting the adjustment assembly 15 when processing parts.

[0041] Example 2

[0042] Referring to Figures 1-10 For the second embodiment of the present application, which is different from the first embodiment, further comprising: the adjusting assembly 15 comprises a rotating part 151, a rotating rod 152 movably connected to the rotating part 151, and a self-locking part 153 arranged at the lower end of the rotating part 151.

[0043] Further, the rotating part 151 comprises a rotating wheel 1511, a connecting column 1512 fixedly connected to the bottom of the rotating wheel 1511, a movable cavity 1513 opened on the connecting column 1512, and a movable part 1514 penetratingly arranged on the connecting column 1512.

[0044] The two ends of the horizontal axis of the rotating wheel 1511 are arranged as irregular concave parts 15111, and the two ends of the vertical axis are arranged as irregular convex parts 15112; the lower end of the rotating wheel 1511 is opened with two groups of arc-shaped grooves 15113, and the groove bottom of each group of arc-shaped grooves 15113 is arranged as a wave shape.

[0045] The cleaning assembly 17 comprises a ball cover 171 in contact with the arc-shaped grooves 15113, a wiper 172 arranged at the periphery of the ball cover 171, a connecting part 173 arranged at the inner side of the wiper 172, an elastic part 174 sleevedly arranged on the connecting part 173, a moving column 175 arranged on the elastic part 174, an inclined plate 176 arranged on the moving column 175, a triangular rib 177 arranged below the inclined plate 176, and a sliding block 178 arranged at the bottom of the triangular rib 177.

[0046] Further, the rotating rod 152 comprises a movable rod 1521 arranged inside the movable cavity 1513, a movable hole 1522 opened on the movable rod 1521, and a handle 1523 fixedly arranged on the movable rod 1521 away from the movable hole 1522.

[0047] The movable part 1514 is inserted into the movable hole 1522; the end of the movable rod 1521 close to the movable hole 1522 is provided with a protrusion 15211, and the contour of the protrusion 15211 is arranged as an irregular arc shape.

[0048] It should be noted that the rotating rod 152 is rotated to drive the rotating wheel 1511 to rotate. In this process, the convex parts 15112 of the movable wheel 1511 are respectively in contact with the inner walls of the second body 13 and the limiting part 16 to realize force transmission. The convex parts 15112 and the concave parts 15111 are arranged as an arc shape, which can effectively reduce the friction and improve the service life of the present application. Therefore, the movable wheel 1511 adopts this special structure design of combining concave and convex parts, which can effectively and more labor-savingly transmit the pressure to the second body 13 and the limiting part 16.

[0049] Further, the self-locking component 153 comprises a first tooth disc 1531 fixedly connected to the lower end of the connecting column 1512, a moving hole 1532 formed on the first tooth disc 1531, a top shaft 1533 inserted into the moving hole 1532, a second tooth disc 1534 fixedly arranged at the lower end of the top shaft 1533, a first spring 1535 arranged at the lower end of the second tooth disc 1534, and a fixed seat 1536 fixedly connected to the lower end of the first spring 1535.

[0050] The fixed seat 1536 is provided with a sleeve 15361, and the first tooth disc 1531, the second tooth disc 1534 and the first spring 1535 are arranged inside the sleeve 15361; the first tooth disc 1531 and the second tooth disc 1534 are engaged with each other or separated from each other under the action of the first spring 1535, and the top end of the top shaft 1533 extends into the movable cavity 1513 under the action of the first spring 1535.

[0051] In the initial state, the included angle between the rotating rod 152 and the connecting column 1512 is less than 90°, and the protrusion 15211 on the movable rod 1521 only has slight contact with the top end of the top shaft 1533. The top end of the top shaft 1533 extends into the movable cavity 1513 through the moving hole 1532. Under the elastic force of the first spring 1535, the second tooth disc 1534 and the first tooth disc 1531 are engaged with each other, and the rotating wheel 1511 will not rotate. Therefore, the present application belongs to a locked state in the initial state.

[0052] When it is necessary to clamp the part to be machined, the rotating rod 152 is first pressed down. The movable rod 1521 rotates around the movable part 1514 in the movable cavity 1513, and the protrusion 15211 on the movable rod 1521 continuously presses the top end of the top shaft 1533. When the rotating rod 152 is parallel to the ground, the top end of the top shaft 1533 is extruded out of the movable cavity 1513. The second tooth disc 1534 also moves downward under the action of the extrusion force and compresses the first spring 1535, and the first tooth disc 1531 and the second tooth disc 1534 are separated from each other and no longer engaged. Then the first table body 12 and the second table body 13 are clamped by rotating the rotating rod 152. When the part to be machined is clamped, the rotating rod 152 is loosened. The first spring 1535 changes from the compressed state to the stretched state, the top end of the top shaft 1533 returns to the initial position under the action of the elastic force, and the first tooth disc 1531 and the second tooth disc 1534 are engaged with each other to realize self-locking.

[0053] Preferably, in the prior art, the thickness and length of the part to be machined are not fixed, and the rotation angle of the movable wheel 1511 also changes according to the thickness and length of the part to be machined. However, under the structure design of the self-locking assembly, no matter the length and thickness of the part to be machined are, as long as clamping, it can be immediately self-locked to prevent damage to the part to be machined or insufficient machining precision due to loose clamping or vibration during work. Therefore, through the design of the self-locking part 153, the present application can be applied to machining of parts of different specifications, and the practicality of the device is improved.

[0054] Further, the telescopic assembly 14 comprises a second spring 141, a connecting shaft 142 fixedly arranged on the first base 12, and a bearing part 143 slidingly connected to the connecting shaft 142; the connecting shaft 142 is fixedly connected to the limiting part 16.

[0055] The bearing part 143 comprises a shaft sleeve 1431, a plurality of annular grooves 1432 arranged in the shaft sleeve 1431, and a plurality of rolling balls 1433 movably arranged in the annular grooves 1432.

[0056] Preferably, when the movable wheel 1511 rotates, the first base 12 and the second base 13 move towards each other on the seat 11 to realize centering and clamping. Compared with the prior art which can only tighten in one direction, the clamping force of the present application is stronger, thereby realizing stable clamping of the part. Under the action of the second spring 141, the first base 12 and the second base 13 can also realize automatic return.

[0057] When the second base 13 moves on the connecting shaft 142, the plurality of rolling balls 1433 on the bearing part 143 move in cooperation, on the one hand, to reduce the friction, making it more durable; on the other hand, the second spring 141 can remain stable during movement and will not deform.

[0058] Further, the first base 12 comprises two groups of connecting parts 121 symmetrically arranged at two ends of the first base 12, two groups of first protection cylinders 122 fixedly arranged on the two groups of connecting parts 121, and connecting holes 123 arranged in the connecting parts 121; the connecting shaft 142 is inserted into the connecting holes 123.

[0059] Further, the second base 13 comprises two groups of sliding parts 131 symmetrically arranged at two ends of the second base 13, a second protection cylinder 132 fixedly arranged on the two groups of sliding parts 131, and a sliding hole 133 arranged in the sliding part 131; the bearing part 143 is embedded in the sliding hole 133; the second protection cylinder 132 is slidingly connected to the first protection cylinder 122.

[0060] The upper end of the first base body 12 and the second base body 13 is fixedly installed with a clamp 134, and the upper surface of the first base body 12 and the second base body 13 is provided with a plurality of groups of threaded holes 135.

[0061] It should be noted that many impurities and iron filings will be generated during the machining process. Through the arrangement of the first protective cylinder 122, the second protective cylinder 132 and the sleeve 15361, the telescopic assembly 14 and the adjusting assembly 15 are effectively protected from damage, thereby improving the service life of the present application.

[0062] Preferably, the plurality of groups of threaded holes 135 on the first base body 12 and the second base body 13 can be installed with other specifications of clamping jaws.

[0063] Further, the two ends of the second spring 141 are connected to the connecting portion 121 and the sliding portion 131, respectively; and the seat body 11 is slidingly connected to the first base body 12 and the second base body 13.

[0064] Preferably, the seat body 11 is further provided with two groups of sliding grooves for facilitating the movement of the sliding blocks 178.

[0065] It should be noted that the arc-shaped groove 15113 has an initial point and a maximum clamping point, and the initial point is farthest from the center of the rotating wheel 1511, and the device is in an idle state; when the rotating wheel 1511 is rotated, the cleaning assembly 17 moves from the initial point along the inner wall of the arc-shaped groove 15113 to the maximum clamping point, and when it moves to the maximum clamping point, the first base body 12 and the second base body 13 abut each other, and the distance between the two groups of cleaning assemblies 17 gradually shortens during the process. The advantage of this design is that impurities and waste water will be generated during the machining of the numerical control machine tool, and when the workpiece to be machined is clamped, the two groups of cleaning assemblies 17 move towards the center of the rotating wheel 1511. During the machining process, part of the impurities will be isolated by the two groups of cleaning assemblies 17 above and will be transported along the inclined plate 176 to both sides of the device, thereby effectively avoiding damage to the self-locking mechanism 153 below the rotating wheel 1511. When the machining is completed, the rotating wheel 1511 is rotated in the opposite direction, and the machined workpiece is removed, at which time the two groups of cleaning assemblies 17 move along the edge of the seat body 11, respectively, and the space below the cleaning assembly 17 is thus also enlarged, thereby facilitating the cleaning of the gap below by the staff.

[0066] The bottom of the arc-shaped groove 15113 is preferably designed in a wavy shape, so that the groove depth is constantly changing with the wavy shape. The ball cover 171 on the cleaning assembly 17 is in contact with the groove bottom of the arc-shaped groove 15113. When the cleaning assembly 17 moves, the ball cover 171 makes the elastic member 174 reciprocate, thereby driving the scraper 172 that is in wide cooperation with the arc-shaped groove 15113 to also reciprocate in the arc-shaped groove 15113. The two ends of the connecting member 173 are connected with the scraper 172 and the moving column 175 respectively, thereby providing stable support for the two. The advantage of this design is that the scraper 172 can remove stains outside the arc-shaped groove 15113, thereby playing a cleaning role. At the same time, the design of the ball cover 171 at the top of the elastic structure facilitates the movement of the moving column 175 in the wavy groove, thereby reducing friction and improving service life. Because the arc-shaped groove 15113 is not easy to clean, the design of the reciprocating scraper 172 can make the device realize the cleaning of the arc-shaped groove 15113 and the outer wall of the moving column 175 by only rotating the handle 1523. The design of the triangular ribs 177 and the sliding block 178 sliding on the sliding groove can make the cleaning assembly 17 maintain stability during the working process.

[0067] In use, first, the part to be processed is placed between the first table body 12 and the second table body 13. Second, the adjusting assembly 15 is pressed downward and rotated. The outer wall of the adjusting assembly 15 always applies a pressure to the second table body 13 during the rotation process, and also applies a pressure to the limiting member 16 during the rotation process. At this time, under the action of the telescopic assembly 14, the second table body 13 moves toward the first table body 12; when the first table body 12 and the second table body 13 clamp the part to be processed, the adjusting assembly 15 is released to complete self-locking and clamping, thereby realizing stable clamping and installation; the distance between the two groups of cleaning assemblies 17 gradually shortens during the rotation of the adjusting assembly 15, thereby playing a role of guiding flow and protecting the adjusting assembly 15 during the processing of the part.

[0068] In summary, the telescopic assembly and the bearing component can make the first table body and the second table body move relatively, thereby ensuring that different thicknesses of parts can be adapted during processing. The adjusting assembly can make the first table body and the second table body tightly clamp the part through rotation and vertical downward pressure, and automatically lock through the built-in self-locking component when clamping, thereby preventing the part from loosening during processing. The concave-convex connection design of the adjusting assembly reduces friction and improves service life. In summary, the tool fixture can provide stable and safe clamping during processing of parts of different sizes through a precise force transmission mechanism and a self-locking function, thereby improving work efficiency and processing accuracy.

[0069] Example 3

[0070] Reference Figure 1 , Figure 6 and Figure 9For the third embodiment of the present application, the embodiment provides a use method, specifically comprising:

[0071] Placing: placing the part to be processed between the first table body 12 and the second table body 13;

[0072] Clamping: pressing and rotating the adjusting assembly 15, so that the outer wall of the adjusting assembly 15 applies pressure to the second table body 13 and the limiting piece 16 during rotation, and realizes the opposite movement under the action of the telescopic assembly 14, until the first table body 12 and the second table body 13 clamp the part to be processed;

[0073] Self-locking: releasing the adjusting assembly 15, and the self-locking part 153 in the adjusting assembly 15 realizes self-locking under the action of the first spring 1535, so that the first table body 12 and the second table body 13 remain in the clamped state;

[0074] Cleaning: during clamping and releasing, the cleaning assembly 17 moves along the arc-shaped groove 15113, and automatically removes impurities in the arc-shaped groove through the cooperation of the elastic piece 174 and the scraper 172 inside, and at the same time, after the processing is completed, the movement of the cleaning assembly 17 provides convenience for cleaning the gap below.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A fixture, characterized in that: include, The main unit (1) comprises a base (11), a first platform (12) arranged on the base (11), a second platform (13) arranged on one side of the first platform (12), two groups of telescopic components (14) symmetrically arranged at both ends of the first platform (12) and the second platform (13), an adjustment component (15) arranged on one side of the second platform (13), a limiting member (16) arranged on the two groups of telescopic components (14), and a cleaning component (17) symmetrically arranged on both sides of the adjustment component (15).

2. The fixture according to claim 1, wherein: The adjustment assembly (15) comprises a rotating component (151), a rotating rod (152) movably connected to the rotating component (151), and a self-locking component (153) disposed at the lower end of the rotating component (151).

3. The fixture according to claim 2, wherein: The rotating component (151) comprises a rotating wheel (1511), a connecting column (1512) fixedly connected to the bottom of the rotating wheel (1511), a movable cavity (1513) provided on the connecting column (1512), and a movable member (1514) penetrating the connecting column (1512); The two ends of the horizontal axis of the rotating wheel (1511) are configured as irregular concave portions (15111), and the two ends of the vertical axis are configured as irregular convex portions (15112); the lower end of the rotating wheel (1511) is provided with two groups of arc-shaped grooves (15113), and the bottom of each group of the arc-shaped grooves (15113) is configured in a wave shape; The cleaning assembly (17) includes a ball cover (171) in contact with the arc groove (15113), a scraper (172) arranged on the periphery of the ball cover (171), a connecting member (173) arranged on the inner side of the scraper (172), an elastic member (174) sleeved on the connecting member (173), a moving column (175) arranged on the elastic member (174), an inclined plate (176) arranged on the moving column (175), a triangular rib (177) arranged below the inclined plate (176), and a slider (178) arranged at the bottom of the triangular rib (177).

4. The fixture according to claim 3, wherein: The rotating rod (152) comprises a movable rod (1521) disposed inside the movable cavity (1513), a movable hole (1522) formed on the movable rod (1521), and a handle (1523) fixedly disposed on one end of the movable rod (1521) away from the movable hole (1522); The movable member (1514) is plugged into the movable hole (1522); a protrusion (15211) is provided at one end of the movable rod (1521) close to the movable hole (1522), and the contour of the protrusion (15211) is set to an irregular arc shape.

5. The fixture according to claim 4, characterized in that: The self-locking component (153) includes a first toothed disc (1531) fixedly connected to the lower end of the connecting column (1512), a movable hole (1532) provided on the first toothed disc (1531), a top shaft (1533) plugged into the movable hole (1532), a second toothed disc (1534) fixedly provided at the lower end of the top shaft (1533), a first spring (1535) provided at the lower end of the second toothed disc (1534), and a fixing seat (1536) fixedly connected to the lower end of the first spring (1535); A sleeve (15361) is provided on the fixing seat (1536), and the first toothed disc (1531), the second toothed disc (1534) and the first spring (1535) are all provided inside the sleeve (15361); the first toothed disc (1531) and the second toothed disc (1534) are engaged with or separated from each other under the action of the first spring (1535), and the top end of the top shaft (1533) extends into the interior of the movable cavity (1513) under the action of the first spring (1535).

6. The fixture according to claim 5, characterized in that: The telescopic assembly (14) comprises a second spring (141), a connecting shaft (142) fixedly arranged on the first platform (12), and a bearing component (143) slidably connected to the connecting shaft (142); the connecting shaft (142) is fixedly connected to the limiting component (16); The bearing component (143) includes a shaft sleeve (1431), a plurality of annular grooves (1432) formed inside the shaft sleeve (1431), and a plurality of balls (1433) movably connected and arranged inside the annular grooves (1432).

7. The fixture according to claim 6, characterized in that: The first platform (12) comprises two groups of connecting parts (121) symmetrically arranged at both ends of the first platform (12), two groups of first protective tubes (122) fixedly arranged on the two groups of connecting parts (121), and connecting holes (123) opened inside the connecting parts (121); the connecting shaft (142) is plugged into the connecting hole (123).

8. The fixture according to claim 7, wherein: The second platform (13) comprises two sets of sliding parts (131) symmetrically arranged at two ends of the second platform (13), a second protective tube (132) fixedly arranged on the two sets of sliding parts (131), and a sliding hole (133) opened inside the sliding part (131); the bearing component (143) is embedded in the sliding hole (133); the second protective tube (132) is slidably connected to the first protective tube (122); The upper ends of the first platform (12) and the second platform (13) are respectively fixedly mounted with clamps (134), and the upper surfaces of the first platform (12) and the second platform (13) are both provided with a plurality of groups of threaded holes (135).

9. The fixture according to claim 8, characterized in that: The two ends of the second spring (141) are respectively connected to the connecting portion (121) and the sliding portion (131); the seat body (11) is slidably connected to the first platform body (12) and the second platform body (13).

10. A method of use, characterized in that: The fixture according to claim 9, wherein the method comprises: Placing: placing the part to be processed between the first platform (12) and the second platform (13); Clamping: Pressing down and rotating the adjusting assembly (15) so that the outer wall of the adjusting assembly (15) applies pressure to the second platform (13) and the limiting member (16) during the rotation process, and realizes the movement toward each other under the action of the telescopic assembly (14) until the first platform (12) and the second platform (13) clamp the part to be processed; Self-locking: when the adjusting assembly (15) is released, the self-locking component (153) in the adjusting assembly (15) is self-locked under the action of the first spring (1535), so that the first platform (12) and the second platform (13) remain in a clamped state; Cleaning: During the clamping and loosening process, the cleaning component (17) moves along the arc groove (15113) and automatically removes impurities in the arc groove through the cooperation of the elastic member (174) and the scraper (172) inside it. At the same time, after the processing is completed, the movement of the cleaning component (17) facilitates the cleaning of the gap below.

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