Clamp tool

Abstract

The invention provides a clamp tool, which relates to the technical field of machining and specifically comprises a bracket assembly, a first clamping mechanism and a second clamping mechanism. Through the support assembly of the fixed frame body, the movable first frame body and the movable second frame body, the two first clamping parts and the two second clamping parts are arranged at the two axial ends of the two frame bodies correspondingly, so that the clamp can synchronously and stably clamp a plurality of dispersed parts of a workpiece in the axial direction in the lateral direction; meanwhile, by means of axial movement of the first frame body and the second frame body, axial position fine adjustment can be directly conducted on all clamping positions at the same time under the condition that the workpiece is not loosened, and therefore the problem that a traditional clamp is difficult to clamp the workpiece synchronously for axial adjustment is effectively solved, and the clamping efficiency and the positioning precision are improved.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and more specifically, to a fixture. Background Technology

[0002] In the automotive manufacturing industry, the processing, welding, and assembly of parts generally rely on fixtures and tooling to achieve precise positioning and reliable clamping, which is crucial for ensuring product processing accuracy, consistency, and production efficiency.

[0003] Currently, most fixtures widely used in production sites adopt a relatively simple fixed layout, and the position of their clamping units is usually not adjustable or can only be adjusted to a limited extent in a single dimension. These types of fixtures often exhibit insufficient adaptability when dealing with automotive parts that have complex structures, multiple clamping features, and these features are spatially discrete.

[0004] In a single clamping operation, existing fixtures often struggle to simultaneously and stably clamp different parts of a workpiece that are far apart along its length (axial direction). Furthermore, when fine adjustments to the overall axial position of the workpiece are required after it has been clamped, the fixture often needs to be released for repositioning. This is not only cumbersome but also prone to introducing secondary positioning errors, affecting the accuracy and efficiency of machining and assembly. Summary of the Invention

[0005] The purpose of this invention is to provide a fixture to alleviate the technical problem that existing fixtures are usually unable to synchronously and stably clamp different parts of a workpiece that are far apart along its axial direction, and cannot make fine adjustments after clamping.

[0006] The present invention provides a fixture, comprising: a support assembly, a first clamping mechanism, and a second clamping mechanism.

[0007] The support assembly includes a fixed frame extending along a first axis, a first frame, and a second frame. The first frame is located radially outside the fixed frame, and the second frame is located on one side of the fixed frame along the first axis. The first frame and the second frame are movable relative to the fixed frame along the first axis, and the relative positions of the first frame and the second frame are fixed.

[0008] The first clamping mechanism is disposed on the first frame and has two first clamping parts, which are respectively disposed at both ends of the first frame along the first axis.

[0009] The second clamping mechanism is provided on the second frame and has two second clamping parts, which are respectively provided at both ends of the second frame along the first axis.

[0010] Furthermore, the first clamping part includes: a first connecting plate, a guide block, a gasket, a second connecting plate, and a clamping cylinder.

[0011] The first connecting plate is located on the first frame.

[0012] The guide block is located on the side of the first connecting plate away from the fixed frame.

[0013] A gasket is placed between the first connecting plate and the guide block.

[0014] The second connecting plate is parallel to the first connecting plate and is adjacent to it along the first axis.

[0015] The clamping cylinder is mounted on the second connecting plate via a support, and the clamping end of the clamping cylinder can be close to or away from the guide block.

[0016] Furthermore, the second clamping mechanism includes: a mounting plate, a telescopic assembly, a movable assembly, a guide rail, and a mating assembly.

[0017] The mounting plate is located on the second frame.

[0018] The telescopic assembly is located on the mounting plate.

[0019] The active component is connected to the output end of the telescopic component.

[0020] The guide rail is located on one side of the second frame and is parallel to the second frame, and the guide rail extends along the first axis.

[0021] The mating component is located on the second frame and is opposite to the movable component along the first axis.

[0022] Furthermore, the telescopic assembly includes: a first telescopic cylinder.

[0023] The first telescopic cylinder is mounted on the mounting plate, and the moving end of the first telescopic cylinder is hinged to the movable component.

[0024] Furthermore, the movable component includes: a support plate, a slider, and a first clamping block.

[0025] The support plate is connected to the output end of the telescopic assembly via a transmission connection.

[0026] The slider is mounted on the support plate and slides in cooperation with the guide rail.

[0027] The first clamping block is located at the end of the bearing plate facing the mating assembly.

[0028] Furthermore, the fixture also includes a protective plate.

[0029] The protective plate is located below the second frame and covers the guide rail.

[0030] Furthermore, the mating assembly includes: a fixing plate, a second clamping block, and a screw.

[0031] The fixing plate is located on the second frame.

[0032] The second clamping block is disposed on the fixing plate and is opposite to the first clamping block along the first axis.

[0033] The screw is threadedly connected to the second clamping block, and its end extends toward the first clamping block along the first axial direction.

[0034] Furthermore, the mating component also includes a proximity switch.

[0035] A proximity switch is located at one end of the second clamping block near the first clamping block and is electrically connected to the telescopic assembly.

[0036] Furthermore, the support assembly also includes a drive mechanism, which comprises a second telescopic cylinder, a floating joint, and a limiting block.

[0037] The second telescopic cylinder is located at one end of the fixed frame along the first axial direction.

[0038] The floating joint is located between the moving end of the second telescopic cylinder and the first frame.

[0039] The limiting block is fixedly installed on the fixed frame.

[0040] The first frame penetrates the limiting block and connects to the moving end of the second telescopic cylinder.

[0041] Furthermore, a buffer plate is installed on the side of the second connecting plate facing the clamping cylinder.

[0042] Beneficial effects: The fixture provided by this invention uses a support assembly consisting of a fixed frame, a movable first frame, and a second frame, combined with two first clamping parts and two second clamping parts arranged at the axial ends of the two frames. This allows the fixture to synchronously and stably clamp multiple discrete parts of the workpiece along the axial direction. At the same time, by means of the axial movement of the first and second frames, the axial position of the entire workpiece can be finely adjusted directly without releasing it. This effectively solves the problem that traditional fixtures are difficult to synchronously clamp multiple parts of the workpiece along the axial direction and make adjustments, thus improving clamping efficiency and positioning accuracy. Attached Figure Description

[0043] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of one side of the first clamping mechanism of the fixture provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of one side of the second clamping mechanism of the fixture provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first clamping mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the second clamping mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second frame.

[0045] Figure label: 100-First frame; 200-Fixed frame; 300-Second frame; 400-First clamping mechanism; 401-First connecting plate; 402-Gasket; 403-Guide block; 404-Second connecting plate; 405-Support; 406-Clamping cylinder; 500-Second clamping mechanism; 501-Mounting plate; 502-Telescopic assembly; 521-First telescopic cylinder; 522-Y-type connector; 523-Bushing; 503-Modible assembly; 531-Bearing... Carrier plate; 532-Slider; 533-First bending plate; 534-First clamping block; 504-Guide rail; 505-Matching assembly; 551-Fixing plate; 552-Positioning plate; 553-Matching bracket; 554-Second bending plate; 555-Second clamping block; 556-Matching block; 557-Screw; 600-Protective plate; 700-Drive mechanism; 701-Second telescopic cylinder; 702-Floating joint; 703-Limiting block; 800-Proximity switch. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not 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 invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0051] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. 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, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0053] Combination Figures 1 to 5 The fixture provided in this embodiment includes a support assembly, a first clamping mechanism 400, and a second clamping mechanism 500.

[0054] The support assembly includes a fixed frame 200, a first frame 100, and a second frame 300 extending along a first axial direction. The first frame 100 is located radially outward of the fixed frame 200, and the second frame 300 is located on one side of the fixed frame 200 along the first axial direction. The first frame 100 and the second frame 300 are movable relative to the fixed frame 200 along the first axial direction, and their relative positions are fixed. A first clamping mechanism 400 is located on the first frame 100 and has two first clamping parts, which are respectively located at both ends of the first frame 100 along the first axial direction. A second clamping mechanism 500 is located on the second frame 300 and has two second clamping parts, which are respectively located at both ends of the second frame 300 along the first axial direction.

[0055] Specifically, in this embodiment, the support assembly is the basic frame of the fixture.

[0056] The fixed frame 200 is used to be fixedly installed on the base of the processing equipment. The first frame 100 and the second frame 300 are slidably disposed on one side of the fixed frame 200. The first clamping mechanism 400 and the second clamping mechanism 500 are respectively disposed on different frames so that they can be arranged and operated independently.

[0057] The first clamping mechanism 400 is disposed on the first frame 100 and includes two first clamping parts symmetrically arranged at both ends of the first frame 100 along the first axis. The second clamping mechanism 500 is disposed on the second frame 300 and also includes two second clamping parts distributed along the first axis. With this structure, the fixture provided in this embodiment can simultaneously position and clamp four parts of the workpiece from both axial sides.

[0058] Furthermore, in this embodiment, since the first frame 100 and the second frame 300 are relatively fixed, they can be driven to move together relative to the fixed frame 200, thereby realizing the overall axial position adjustment of the clamped workpiece.

[0059] The fixture provided in this embodiment also includes a drive mechanism 700, the drive end of which is connected to the first frame 100 in a transmission connection, thereby pushing the first frame 100 to slide along the first axis.

[0060] In this embodiment, the first clamping part includes a first connecting plate 401, a guide block 403, a gasket 402, a second connecting plate 404, and a clamping cylinder 406.

[0061] A first connecting plate 401 is disposed on the first frame 100. A guide block 403 is disposed on the side of the first connecting plate 401 away from the fixed frame 200. A gasket 402 is disposed between the first connecting plate 401 and the guide block 403. A second connecting plate 404 is parallel to the first connecting plate 401 and adjacent to it along the first axial direction. A clamping cylinder 406 is mounted on the second connecting plate 404 via a support 405, and the clamping end of the clamping cylinder 406 can approach or move away from the guide block 403.

[0062] Specifically, each first clamping part in this embodiment is composed of a first connecting plate 401, a gasket 402, a guide block 403, a second connecting plate 404, a support 405, and a clamping cylinder 406.

[0063] The first connecting plate 401 is bolted to the end of the first frame 100. The guide block 403 is located on the side of the first connecting plate 401 away from the fixed frame 200. The gasket 402 is located between the first connecting plate 401 and the guide block 403.

[0064] In this embodiment, the gasket 402 forms a buffer layer, which can absorb part of the impact energy at the moment of clamping, thereby reducing the rigid impact force on the guide block 403 and the first connecting plate 401, and playing the role of protecting the workpiece surface and extending the life of the fixture.

[0065] The second connecting plate 404 is parallel to the first connecting plate 401 and adjacent to it along the first axial direction. The clamping cylinder 406 is mounted on the second connecting plate 404 via a support 405, and the clamping end of the clamping cylinder 406 can approach or move away from the guide block 403. During operation, the clamping cylinder 406 drives its clamping end to extend, pressing the workpiece between the end face of the clamping end and the working surface of the guide block 403, thereby achieving stable and reliable lateral fixed-point clamping.

[0066] In this embodiment, the second clamping mechanism 500 includes a mounting plate 501, a telescopic component 502, a movable component 503, a guide rail 504, and a mating component 505.

[0067] Mounting plate 501 is disposed on the second frame 300. Telescopic assembly 502 is disposed on mounting plate 501. Movable assembly 503 is connected to the output end of telescopic assembly 502. Guide rail 504 is disposed on one side of the second frame 300 and parallel to the second frame 300, and extends along the first axis. Mating assembly 505 is disposed on the second frame 300 and is opposite to movable assembly 503 along the first axis.

[0068] Each second clamping mechanism 500 in this embodiment includes a mounting plate 501, a telescopic component 502, a movable component 503, a guide rail 504, and a mating component 505.

[0069] The mounting plate 501 is bolted to the end of the second frame 300. A telescopic assembly 502 is mounted on the mounting plate 501. A movable assembly 503 is connected to the output end of the telescopic assembly 502. A guide rail 504 is located on one side of the second frame 300 and parallel to it, extending along a first axial direction. A mating assembly 505 is located on the second frame 300 and is opposite to the movable assembly 503 along the first axial direction. The telescopic assembly 502 provides power, driving the movable assembly 503 to move linearly along the direction defined by the guide rail 504, cooperating with the fixed mating assembly 505 to complete the clamping action, thereby achieving linear clamping motion.

[0070] In this embodiment, the telescopic assembly 502 includes a first telescopic cylinder 521.

[0071] The first telescopic cylinder 521 is mounted on the mounting plate 501, and the moving end of the first telescopic cylinder 521 is hinged to the movable component 503.

[0072] Specifically, in this embodiment, the moving end of the first telescopic cylinder 521 (i.e. the piston rod end of the cylinder) is hinged to the movable component 503 (in this embodiment, the hinge is specifically achieved through the Y-type joint 522 and the bushing 523).

[0073] This structure allows for minor alignment errors and avoids generating harmful lateral forces, protecting the cylinder piston rod. At the same time, power transmission is smoother, improving the reliability of the drive system.

[0074] In this embodiment, the active component 503 includes a support plate 531, a slider 532, a first bending plate 533, and a first clamping block 534.

[0075] The support plate 531 is connected to the output end of the telescopic assembly 502 via a transmission connection. The slider 532 is disposed on the support plate 531 and slides in cooperation with the guide rail 504. The first bending plate 533 is disposed on one side of the support plate 531 to enhance the structural rigidity of the movable assembly. The first clamping block 534 is disposed at the end of the support plate 531 facing the mating assembly 505.

[0076] Specifically, in this embodiment, the slider 532 is equipped with ball bearings, enabling it to slide on the guide rail 504 with low friction and high precision. This reduces the resistance during the movement of the movable component 503, resulting in a smoother and more efficient clamping action, and ensuring the linearity of the first clamping block 534's movement. The first bending plate 533 has an L-shaped structure, with one side fixed to the support plate 531 and the other side providing an additional mounting surface or reinforcing rib. The first clamping block 534 is located at the end of the support plate 531 facing the mating component 505, and the side of the first clamping block 534 facing the mating component 505 is the clamping surface of the movable side.

[0077] In this embodiment, the fixture also includes a protective plate 600.

[0078] The protective plate 600 is located below the second frame 300 and covers the guide rail 504.

[0079] In this embodiment, the protective plate 600 can prevent foreign objects such as chips, coolant and dust generated during the processing from falling into the precision guide rail 504 slider 532 pair, thereby avoiding premature wear or jamming of the guide rail 504 and slider 532, ensuring the long-term stability and accuracy of the second clamping mechanism 500, and reducing maintenance requirements.

[0080] In this embodiment, the mating component 505 includes a fixing plate 551, a positioning plate 552, a mating bracket 553, a second bending plate 554, a second clamping block 555, a mating block 556, and a screw 557.

[0081] A fixing plate 551 is fixed to the second frame 300. A positioning plate 552 is fixed to the fixing plate 551. A mating bracket 553 is fixed to the lower surface of the positioning plate 552 and is fixedly connected to the protective plate 600, serving as support and connection. A second bending plate 554 is fixed to one side of the mating bracket 553 to enhance structural rigidity. A second clamping block 555 is disposed on the positioning plate 552 and is opposite to the first clamping block 534 along the first axial direction. A mating block 556 is fixed to the outer wall of the second clamping block 555. A screw 557 is threadedly connected to the second clamping block 555 and the mating block 556, and its end extends towards the first clamping block 534 along the first axial direction.

[0082] Specifically, during use, the extension length of the screw 557 can be adjusted by rotating the screw 557, thereby changing the actual position of the clamping point. When the movable component 503 drives the first clamping block 534 closer, the workpiece can be clamped between the first clamping block 534 and the end of the screw 557. With this structure, the clamping structure can flexibly adapt to workpieces of different thicknesses, thereby improving the versatility of the tooling and the reliability of clamping.

[0083] In this embodiment, the cooperating component 505 also includes a proximity switch 800.

[0084] The proximity switch 800 is located at one end of the second clamping block 555 near the first clamping block 534 and is electrically connected to the telescopic assembly 502.

[0085] Specifically, in this embodiment, the proximity switch 800 is connected to the control circuit of the first telescopic cylinder 521 to control its stroke.

[0086] The proximity switch 800 is used to detect whether the first clamping block 534 or the workpiece has reached the preset clamping position. When the target is detected, a signal is sent to the control system, thereby controlling the action of the first telescopic cylinder 521, realizing closed-loop control of the clamping stroke, and improving the consistency and automation level of clamping.

[0087] In this embodiment, the bracket assembly further includes a drive mechanism 700, which includes a second telescopic cylinder 701, a floating joint 702, and a limiting block 703.

[0088] The second telescopic cylinder 701 is disposed at one end of the fixed frame 200 along the first axial direction. The floating joint 702 is disposed between the moving end of the second telescopic cylinder 701 and the first frame 100. The limiting block 703 is fixedly disposed on the fixed frame 200. The first frame 100 passes through the limiting block 703 and is connected to the moving end of the second telescopic cylinder 701.

[0089] The floating joint 702 in this embodiment has a spherical bearing structure, which can compensate for the slight coaxiality deviation between the drive axis and the movement direction of the first frame 100, so as to ensure smooth push and pull action.

[0090] The limiting block 703 is fixedly installed on the fixed frame 200. The first frame 100 passes through the limiting block 703 and slides with the second frame 300 and the limiting block 703, so that the first frame 100 can move relative to the fixed frame 200 along the first axis. When the first frame 100 moves, it can drive the second frame 300 to move together. With this structure, when the workpiece is clamped, the overall axial position of the workpiece can be adjusted slightly without loosening the workpiece. The operation is convenient and the positioning reference is maintained.

[0091] In this embodiment, a buffer plate is installed on the side of the second connecting plate 404 facing the clamping cylinder 406.

[0092] Specifically, in this embodiment, the buffer sheet is adhered to the inner side of the second connecting plate 404, thereby forming another buffer structure. At the end of the clamping action of the clamping cylinder 406, or during the transmission of equipment vibration, the buffer sheet can effectively absorb and attenuate the impact energy, further reducing the rigid vibration and noise at the moment of clamping. This not only protects the clamping cylinder 406 itself, but also provides additional protection for the precision workpiece it clamps, enhancing the gentleness and reliability of the entire clamping process.

[0093] In addition, it should be noted that before using the fixture provided in this embodiment, the automotive parts to be processed should be placed in the initial station so that the part to be clamped on one side is aligned with the guide blocks 403 area of ​​the two first clamping parts.

[0094] Then, the two clamping cylinders 406 are activated, causing their clamping ends to extend and securely clamp one side of the component between the end face of the clamping end and the guide stop 403. The gasket 402 and the buffer plate provide cushioning protection during this process.

[0095] When fine alignment adjustments are required in the left-right direction for the clamped parts according to process requirements, the second telescopic cylinder 701 of the drive mechanism 700 can be activated. The second telescopic cylinder 701 pulls or pushes the first frame 100 through the floating joint 702, causing it to carry the entire workpiece and move it to the target position along the direction defined by the limiting block 703.

[0096] Finally, clamp the other side or a portion at a different height of the component. This portion should be located between the first clamping block 534 of the corresponding second clamping mechanism 500 and the mating assembly 505. Activate the first telescopic cylinder 521, whose piston rod pushes the support plate 531 through the Y-joint 522 and bushing 523. The slider 532 at the bottom of the support plate 531 slides smoothly along the guide rail 504, causing the first clamping block 534 to move towards the second clamping block 555.

[0097] When the first clamping block 534 or the workpiece triggers the proximity switch 800, the control system stops the first telescopic cylinder 521 or switches it to a pressure-holding state, thereby clamping the workpiece between the first clamping block 534 and the end of the screw 557 (or directly between the first clamping block 534 and the second clamping block 555). By pre-adjusting the extension amount of the screw 557, the specific size of the workpiece can be adapted.

[0098] Through the above steps, multi-position, flexible, adjustable, high-precision, and buffer-protected collaborative clamping of complex automotive parts is achieved.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixture, characterized in that, include: The support assembly includes a fixed frame (200), a first frame (100), and a second frame (300) extending along a first axis. The first frame (100) is located radially outside the fixed frame (200), and the second frame (300) is located on one side of the fixed frame (200) along the first axis. The first frame (100) and the second frame (300) are movable relative to the fixed frame (200) along the first axis, and the relative positions of the first frame (100) and the second frame (300) are fixed. A first clamping mechanism (400) is provided on the first frame (100) and has two first clamping parts, which are respectively provided at both ends of the first frame (100) along the first axis. The second clamping mechanism (500) is provided on the second frame (300) and has two second clamping parts, which are respectively provided at both ends of the second frame (300) along the first axis.

2. The fixture according to claim 1, characterized in that, The first clamping part includes: The first connecting plate (401) is disposed on the first frame (100); A guide block (403) is provided on the side of the first connecting plate (401) away from the fixed frame (200); A gasket (402) is disposed between the first connecting plate (401) and the guide block (403); The second connecting plate (404) is parallel to the first connecting plate (401) and adjacent to it along the first axis; A clamping cylinder (406) is mounted on the second connecting plate (404) via a support (405), and the clamping end of the clamping cylinder (406) can move closer to or further away from the guide block (403).

3. The fixture according to claim 2, characterized in that, The second clamping mechanism (500) includes: Mounting plate (501) is provided on the second frame (300); Telescopic assembly (502) is disposed on the mounting plate (501); The movable component (503) is connected to the output end of the telescopic component (502); A guide rail (504) is provided on one side of the second frame (300) and parallel to the second frame (300), and the guide rail (504) extends along the first axis; The mating component (505) is disposed on the second frame (300) and is opposite to the movable component (503) along the first axis.

4. The fixture according to claim 3, characterized in that, The telescopic assembly (502) includes: A first telescopic cylinder (521) is disposed on the mounting plate (501), and the moving end of the first telescopic cylinder (521) is hinged to the movable component (503).

5. The fixture according to claim 3, characterized in that, The active component (503) includes: The support plate (531) is connected to the output end of the telescopic assembly (502) via a transmission connection; A slider (532) is disposed on the support plate (531) and slides in cooperation with the guide rail (504); The first clamping block (534) is located at one end of the bearing plate (531) facing the mating assembly (505).

6. The fixture according to claim 5, characterized in that, The fixture also includes a protective plate (600); The protective plate (600) is located below the second frame (300) and covers the guide rail (504).

7. The fixture according to claim 5, characterized in that, The mating component (505) includes: A fixing plate (551) is provided on the second frame (300); The second clamping block (555) is disposed on the fixed plate (551) and is opposite to the first clamping block (534) along the first axis; The screw (557) is threadedly connected to the second clamping block (555), and its end extends toward the first clamping block (534) along the first axial direction.

8. The fixture according to claim 7, characterized in that, The mating assembly (505) further includes: A proximity switch (800) is located at one end of the second clamping block (555) near the first clamping block (534) and is electrically connected to the telescopic assembly (502).

9. The fixture according to claim 2, characterized in that, The support assembly further includes a drive mechanism (700), the drive mechanism (700) comprising: The second telescopic cylinder (701) is disposed at one end of the fixed frame (200) along the first axial direction; A floating joint (702) is located between the moving end of the second telescopic cylinder (701) and the first frame (100); A limiting block (703) is fixedly installed on the fixed frame (200); The first frame (100) passes through the limiting block (703) and is connected to the moving end of the second telescopic cylinder (701).

10. The fixture according to any one of claims 2-9, characterized in that, A buffer plate is installed on the side of the second connecting plate (404) facing the clamping cylinder (406).

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