Clamping device

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a clamping device. The clamping device is used for clamping a test tube and specifically comprises a rack, a moving assembly and a clamping assembly. The moving assembly comprises a first driving part arranged on the rack; the clamping assembly is arranged on the rack and comprises a second driving part, two oppositely-arranged clamping jaws and a first transmission belt, the second driving part is in driving connection with the first transmission belt, and the first driving part is in transmission connection with the clamping assembly and used for driving the clamping assembly to move in the first direction; the two clamping jaws are connected with two partial structures moving in the opposite directions on the first transmission belt correspondingly, and the second driving piece can drive the first transmission belt to move in a reciprocating mode so that the two clamping jaws can be separated from or get close to each other. According to the test tube clamping device, the clamping operation and the clamping releasing operation of the test tube can be completed in a single driving mode, the compactness of the device is improved, and the occupied space of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a clamping device. Background Art

[0002] In automated laboratory equipment or medical diagnostic equipment, gripping devices are often used to accurately grasp, move, and position test tubes.

[0003] In medical diagnosis, the gripping device can automatically grab the test tube from the test tube rack and send it to the predetermined testing position, which greatly improves the operation efficiency, reduces the error of human operation and reduces the risk of test tube damage.

[0004] At present, the existing clamping devices mostly adopt a multi-drive cooperation form for the clamping action of the clamping claws, which results in the problem that the transmission mechanism is complicated, the entire device occupies a large space, and is not compact enough. Utility Model Content

[0005] The utility model aims to provide a clamping device, which is used to solve the problem that the transmission mechanism of the existing device, which is caused by adopting a multi-drive cooperation form, occupies a large space and is not compact enough.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A gripping device for gripping a test tube, comprising:

[0008] frame;

[0009] A moving assembly, the moving assembly comprising a first driving member disposed on the frame;

[0010] A clamping assembly is arranged on the frame, and the clamping assembly includes a second driving member, two oppositely arranged clamping jaws and a first transmission belt. The second driving member is drivingly connected to the first transmission belt, and the first driving member is drivingly connected to the clamping assembly. The first driving member is used to drive the clamping assembly to move along a first direction; the two clamping jaws are respectively connected to two partial structures on the first transmission belt that move in opposite directions, and the second driving member can drive the first transmission belt to reciprocate so as to separate or approach the two clamping jaws.

[0011] As an optional solution of the clamping device, the clamping assembly includes a frame plate, the first driving member is drivingly connected to the frame plate, a plurality of first driven wheels are provided on the frame plate, and the first transmission belt is wound around the outer ring of the first driven wheel.

[0012] As an optional solution for the clamping device, the clamping assembly further includes a fixed shaft, which passes through the two clamping jaws in sequence, and an elastic member is sleeved on the fixed shaft, and two ends of the elastic member are respectively pressed against the two clamping jaws.

[0013] As an optional scheme of the clamping device, the clamping assembly also includes a first connecting plate and a first pressure plate, one end of the first connecting plate is connected to the clamping claw, and the other end of the first connecting plate is connected to the first pressure plate so that the first transmission belt part structure is clamped between the first connecting plate and the first pressure plate.

[0014] As an optional solution for the clamping device, the clamping assembly includes a frame plate, the side wall of the first connecting plate has a first baffle plate, a first detection optical coupler is fixed on the frame plate, and when the clamping claw is reset, the first baffle plate can cover the first detection optical coupler.

[0015] As an optional scheme of the clamping device, the second driving member is fixed on the frame plate, and the clamping assembly also includes a second connecting plate and a second pressure plate, the second connecting plate is arranged at the output end of the second driving member, and the second connecting plate is connected to the second pressure plate so that the first transmission belt part structure is clamped between the second connecting plate and the second pressure plate.

[0016] As an optional solution of the clamping device, the clamping assembly further includes a tensioning wheel, which is disposed on the frame plate, presses against the first transmission belt and can adjust its position to tension the first transmission belt.

[0017] As an optional solution for the clamping device, the moving assembly includes a guide rail provided on the frame and extending along the first direction and a slider slidably engaged with the guide rail, the slider is connected to the frame plate, and the first driving member is transmission-connected to the frame plate.

[0018] As an optional scheme of the clamping device, the frame plate is connected to the slider via a fixed seat, and the moving assembly also includes a second driven wheel and a second transmission belt transmission-connected to the first driving member, one end of the second transmission belt is wound around the outer ring of the second driven wheel; a third connecting plate and a third pressure plate are provided on the fixed seat, and the third connecting plate and the third pressure plate are connected so that a partial structure of the second transmission belt is clamped between the third connecting plate and the third pressure plate.

[0019] As an optional scheme for the clamping device, a second detection optical coupler, a third detection optical coupler and a fourth detection optical coupler are arranged on the frame along the first direction, and the second detection optical coupler, the third detection optical coupler and the fourth detection optical coupler are respectively used to detect that the fixed seat is located at the initial position, the working position and the extreme position, and a second baffle is provided on the fixed seat, and the second baffle is used to correspondingly block the second detection optical coupler, the third detection optical coupler and the fourth detection optical coupler when the fixed seat moves to the initial position, the working position and the extreme position.

[0020] Beneficial effects:

[0021] In the utility model, the device can clamp the test tube from the test tube rack and move it in the vertical direction. The second driving member of the clamping assembly drives the first transmission belt for transportation. Two clamping claws are respectively connected to the two structures moving in opposite directions of the first transmission belt, which can ensure that the two clamping claws can clamp and release the test tube under the single drive of the second driving member; further, the clamping assembly is driven by the moving assembly to move in the first direction, so that the test tube can leave the test tube rack and transfer in the vertical direction, and the sample extraction test in the test tube is carried out by transferring to the designated detection position. When the detection is completed, the clamping assembly is driven to reset in the reverse direction by the moving assembly, so that the test tube is placed on the test tube rack again. The device can clamp the test tube under a single drive, avoiding the problems of complex transmission structure, large space occupation and lack of compactness caused by the multi-drive form adopted by the existing clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the clamping device provided by an embodiment of the utility model;

[0023] Figure 2 This is a side view of the clamping device provided by the embodiment of the utility model;

[0024] Figure 3 is an exploded view of a clamping assembly provided in an embodiment of the utility model;

[0025] Figure 4 is an exploded view of a mobile assembly provided by an embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the clamping jaw provided in an embodiment of the utility model.

[0027] In the figure:

[0028] X, first direction;

[0029] 100, test tube; 200, test tube rack;

[0030] 1. Frame; 11. Cable management plate;

[0031] 2. Moving assembly; 21. First driving member; 22. Guide rail; 23. Slider; 24. Second driven wheel; 25. Second transmission belt;

[0032] 3. Clamping assembly; 31. Second driving member; 311. Second connecting plate; 312. Second pressing plate; 32. Clamping claw; 321. Clamping portion; 322. Connecting hole; 323. Perforation; 33. First transmission belt; 34. Frame; 341. Fixed seat; 342. Third connecting plate; 343. Third pressing plate; 344. Second baffle; 35. First driven wheel; 36. Fixed shaft; 37. Elastic member; 38. First connecting plate; 381. First baffle; 39. First pressing plate; 310. Tensioning wheel;

[0033] 4. The first detection optocoupler;

[0034] 5. Second detection optocoupler;

[0035] 6. The third detection optocoupler;

[0036] 7. Fourth detection optocoupler. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] Please refer to the attached Figure 1 -Attached Figure 3 The present embodiment relates to a clamping device (hereinafter referred to as "device"), which is used to clamp a test tube 100, and specifically includes a frame 1, a moving assembly 2 and a clamping assembly 3. The moving assembly 2 includes a first driving member 21 arranged on the frame 1; the clamping assembly 3 is arranged on the frame 1, and the clamping assembly 3 includes a second driving member 31, two oppositely arranged clamping jaws 32 and a first transmission belt 33, the second driving member 31 is drivingly connected to the first transmission belt 33, the first driving member 21 is drivingly connected to the clamping assembly 3, and the first driving member 21 is used to drive the clamping assembly 3 to move along the first direction X; the two clamping jaws 32 are respectively connected to two partial structures on the first transmission belt 33 that move in opposite directions, and the second driving member 31 can drive the first transmission belt 33 to move back and forth, so that the two clamping jaws 32 are separated or approached.

[0042] In this embodiment, the device can clamp the test tube 100 from the test tube rack 200 and move it in the vertical direction, so the first direction X involved in this embodiment is the vertical direction. The frame 1 is a vertical plate, which is used to position the moving component 2 and the clamping component 3. The second driving component 31 of the clamping component 3 drives the first transmission belt 33, and the two structures moving in opposite directions of the first transmission belt 33 are respectively connected with two clamping claws 32, which can ensure that the two clamping claws 32 can clamp and release the test tube 100 under the single drive of the second driving component 31; further, the moving component 2 drives the clamping component 3 to move in the first direction X, so that the test tube 100 can leave the test tube rack 200 and be transferred in the vertical direction, and the sample extraction test in the test tube 100 is performed by transferring to the designated detection position. When the test is completed, the moving component 2 drives the clamping component 3 to reset in the opposite direction, so that the test tube 100 is placed on the test tube rack 200 again. The device can clamp the test tube 100 under a single drive, thus avoiding the problems of complex transmission structure, large occupied space and lack of compactness caused by the multi-drive form adopted by the existing clamping device.

[0043] Please refer to the attached Figure 3 Optionally, the clamping assembly 3 includes a frame plate 34 , the first driving member 21 is drivingly connected to the frame plate 34 , a plurality of first driven wheels 35 are provided on the frame plate 34 , and the first transmission belt 33 is wound around the outer ring of the first driven wheel 35 .

[0044] In this embodiment, the frame plate 34 is arranged along the vertical direction, and the shape of the frame plate 34 in the vertical plane can be determined according to the number and layout of the first driven wheels 35 arranged thereon. A plurality of first driven wheels 35 are arranged on the vertical plate surface of the frame plate 34, and three first driven wheels 35 are used in this embodiment. The first transmission belt 33 is sequentially wound around the outer ring of the first driven wheel 35, and the arrangement position of the first driven wheel 35 limits the first transmission belt 33 and also guides the first transmission belt 33.

[0045] Optionally, the clamping assembly 3 further includes a tensioning wheel 310 , which is disposed on the frame plate 34 . The tensioning wheel 310 presses against the first transmission belt 33 and the position of the tensioning wheel 310 can be adjusted to tension the first transmission belt 33 .

[0046] In this embodiment, the tensioning wheel 310 is located near the top of the frame plate 34, and the outer ring of the tensioning wheel 310 presses against the first transmission belt 33. By adjusting the position of the tensioning wheel 310 in the height direction, the first transmission belt 33 can always be kept tensioned to ensure the precise movement of the clamp 32.

[0047] Optionally, the clamping assembly 3 further includes a fixed shaft 36 , which passes through the two clamping jaws 32 in sequence. An elastic member 37 is sleeved on the fixed shaft 36 , and two ends of the elastic member 37 are pressed against the two clamping jaws 32 respectively.

[0048] In this embodiment, the fixed shaft 36 is a pin structure. The fixed shaft 36 passes through the outer side of one of the clamping jaws 32 and further passes outward from the inner side of the other clamping jaw 32. The two clamping jaws 32 slide along the axial direction of the fixed shaft 36 during the process of relative approach and relative distance. The fixed shaft 36 provides a guide for the clamping and unclamping actions of the two clamping jaws 32. At the same time, an elastic member 37 is arranged between the two clamping jaws 32. The elastic member 37 is an ordinary standard spring, which is sleeved on the fixed shaft 36. The two ends of the elastic member 37 are respectively pressed against the relative inner wall surfaces of the two clamping jaws 32. The elastic member 37 effectively buffers the action of the two clamping jaws 32 approaching each other to clamp the test tube 100, thereby preventing the test tube 100 from being subjected to the risk of being broken due to the sudden increase in clamping force.

[0049] Optionally, the clamping assembly 3 also includes a first connecting plate 38 and a first pressure plate 39, one end of the first connecting plate 38 is connected to the clamp 32, and the other end of the first connecting plate 38 is connected to the first pressure plate 39 so that a partial structure of the first transmission belt 33 is clamped between the first connecting plate 38 and the first pressure plate 39.

[0050] In this embodiment, the first connecting plate 38 is arranged parallel to the frame plate 34, and a protruding connecting structure is provided on the side of the first connecting plate 38 away from the clamping jaws 32. The connecting structure is in a right-angle position relationship with the first connecting plate 38. At the same time, the connecting structure and the first connecting plate 38 can be obtained through an integrated bending type. The connecting structure is attached to one side of the first transmission belt 33, and the first pressure plate 39 is attached to the other side of the first transmission belt 33. The two are connected by bolts, so that the first connecting plate 38 is fixed on the first transmission belt 33, and then the two clamping jaws 32 are driven closer or farther away respectively through the two partial structures of the first transmission belt 33 that always move in opposite directions. The structure is simple and convenient.

[0051] Please refer to the attached Figure 3 and attached Figure 5 In this embodiment, the clamping jaw 32 is provided with a clamping portion 321, a connecting hole 322 and a through hole 323. The clamping portion 321 is arranged at an angle with the clamping jaw 32, and a V-shaped groove is arranged on the clamping portion 321. A soft rubber pad can also be arranged on the inner wall of the V-shaped groove to protect the outer wall of the test tube 100 when clamping the test tube 100; a plurality of connecting holes 322 are arranged, and the clamping jaw 32 is screwed to the first connecting plate 38 through the connecting holes 322; the fixed shaft 36 can pass through the through hole 323 to complete the sliding connection with the clamping jaw 32.

[0052] Please continue to refer to the attached Figure 3In this embodiment, a wire management plate 11 is also provided on the frame 1. The wire management plate 11 is a U-shaped structure and is buckled on the plate surface of the frame 1. The hollow area of ​​the wire management plate 11 is used to centrally place the wires to avoid confusion of the wires and improve the neatness of the device.

[0053] Furthermore, a first baffle 381 is provided on the side wall of the first connecting plate 38 , and a first detection optical coupler 4 is fixed on the frame plate 34 . When the clamping jaw 32 is reset, the first baffle 381 can shield the first detection optical coupler 4 .

[0054] In the present embodiment, the first baffle 381 is an L-shaped plate, and the straight arm on one side of the L-shaped plate is used to connect with the first connecting plate 38, and of course it can also be integrally formed on the first connecting plate 38, and the straight arm on the other side of the L-shaped plate is used to achieve shielding cooperation with the first detection optical coupler 4 to complete the reset detection of the clamping jaw 32. The first baffle 381 is set on one of the two first connecting plates 38 of the present embodiment, and the first detection optical coupler 4 is set on the frame plate 34, and of course it can also be set on the frame 1. If it is set on the frame 1, the clamping jaw 32 needs to be reset in both the height and horizontal directions, and the first baffle 381 blocks the first detection optical coupler 4 to achieve detection. If it is set on the frame plate 34, it only needs to reset the clamping jaw 32 in the horizontal direction, and the first baffle 381 can block the first detection optical coupler 4 to achieve detection. Those skilled in the art can adjust the specific position of the first detection optical coupler 4 according to actual needs, and this embodiment does not make specific limitations. At the same time, since the first detection optical coupler 4 is an existing conventional component, this embodiment will not elaborate on its specific working principle.

[0055] Optionally, the second driving member 31 is fixed on the frame plate 34, and the clamping assembly 3 also includes a second connecting plate 311 and a second pressure plate 312. The second connecting plate 311 is arranged at the output end of the second driving member 31, and the second connecting plate 311 is connected to the second pressure plate 312 so that part of the structure of the first transmission belt 33 is clamped between the second connecting plate 311 and the second pressure plate 312.

[0056] In this embodiment, the second driving member 31 can be a cylinder, the output end of the cylinder moves in the vertical direction, and the second connecting plate 311 is also an L-shaped plate, one end of the L-shaped plate is connected to the output end of the cylinder, and the other end is connected to the second pressing plate 312 to complete the cooperation with the first transmission belt 33. The specific connection form can refer to the cooperation form of the first connecting plate 38 and the first pressing plate 39, which will not be elaborated in this embodiment.

[0057] Specifically, when the output end of the second driving member 31 moves upward, the first transmission belt 33 is pulled to move the two clamping jaws 32 away from each other; when the output end of the second driving member 31 moves downward, the first transmission belt 33 is pulled to move the two clamping jaws 32 closer to each other.

[0058] Optionally, the moving assembly 2 includes a guide rail 22 provided on the frame 1 and extending along the first direction X, and a slider 23 slidably matched with the guide rail 22 , the slider 23 is connected to the frame plate 34 , and the first driving member 21 is transmission-connected to the frame plate 34 .

[0059] In this embodiment, the guide rail 22 and the slider 23 cooperate to guide the clamping assembly 3 along the first direction X. The second driving member 31 can be a servo motor, which is screwed and fixed on the frame 1.

[0060] Please refer to the attached Figure 4 Furthermore, the frame plate 34 is connected to the slider 23 through the fixed seat 341, and the moving assembly 2 also includes a second driven wheel 24 and a second transmission belt 25 that is transmission-connected to the first driving member 21, and one end of the second transmission belt 25 is wound around the outer ring of the second driven wheel 24; a third connecting plate 342 and a third pressure plate 343 are provided on the fixed seat 341, and the third connecting plate 342 and the third pressure plate 343 are connected so that part of the structure of the second transmission belt 25 is clamped between the third connecting plate 342 and the third pressure plate 343.

[0061] In this embodiment, the fixed seat 341 is a rectangular block structure, one side of the fixed seat 341 is screwed to the slider 23, and the other side is screwed to the frame plate 34. The second driven wheel 24 is arranged on the frame 1 at the end opposite to the first driving member 21. The second transmission belt 25 is wound around the output end of the second driving member 31 and the second driven wheel 24. The fixed seat 341 is connected to a third connecting plate 342 and a third pressure plate 343. The fixed seat 341 is connected to the second transmission belt 25 by screwing the third connecting plate 342 and the third pressure plate 343. The matching form of the third connecting plate 342 and the third pressure plate 343 can refer to the above-mentioned first connecting plate 38 and the first pressure plate 39, and will not be elaborated in this embodiment.

[0062] Specifically, the second driving member 31 is rotated to output the second driving belt 25 , thereby driving the second driving belt 25 to realize the lifting movement of the clamping assembly 3 .

[0063] Optionally, a second detection optical coupler 5, a third detection optical coupler 6 and a fourth detection optical coupler 7 are arranged on the frame 1 along the first direction X. The second detection optical coupler 5, the third detection optical coupler 6 and the fourth detection optical coupler 7 are respectively used to detect that the fixed seat 341 is located at the initial position, the working position and the extreme position. A second baffle 344 is provided on the fixed seat 341. The second baffle 344 is used to correspondingly block the second detection optical coupler 5, the third detection optical coupler 6 and the fourth detection optical coupler 7 when the fixed seat 341 moves to the initial position, the working position and the extreme position.

[0064] In this embodiment, in order to monitor the different positions reached by the clamping assembly 3, the initial position, working position and limit position of the fixing seat 341 are detected by setting the second detection optical coupler 5, the third detection optical coupler 6 and the fourth detection optical coupler 7, respectively, which actually reflects the initial position, working position and limit position of the entire clamping assembly 3. Specifically, when the second baffle 344 blocks the second detection optical coupler 5, the clamping assembly 3 is located at the initial position of the lowest point; when the second baffle 344 blocks the third detection optical coupler 6, the clamping assembly 3 is located at the middle working position, at which the sample inside the test tube 100 can be inspected and tested; when the second baffle 344 blocks the fourth detection optical coupler 7, it indicates that the clamping assembly 3 is located at the highest working position, that is, the limit height of the upward movement of the test tube 100.

[0065] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A gripping device for gripping a test tube (100), characterized in that: include: Rack (1); A moving assembly (2), the moving assembly (2) comprising a first driving member (21) arranged on the frame (1); A clamping assembly (3) is arranged on the frame (1), and the clamping assembly (3) comprises a second driving member (31), two clamping jaws (32) arranged opposite to each other, and a first transmission belt (33); the second driving member (31) is drivingly connected to the first transmission belt (33); the first driving member (21) is drivingly connected to the clamping assembly (3); the first driving member (21) is used to drive the clamping assembly (3) to move along a first direction (X); the two clamping jaws (32) are respectively connected to two partial structures on the first transmission belt (33) that move in opposite directions; the second driving member (31) can drive the first transmission belt (33) to move back and forth, so as to separate or approach the two clamping jaws (32).

2. The clamping device according to claim 1, characterized in that: The clamping assembly (3) comprises a frame plate (34), the first driving member (21) is drivingly connected to the frame plate (34), a plurality of first driven wheels (35) are provided on the frame plate (34), and the first transmission belt (33) is wound around the outer ring of the first driven wheel (35).

3. The clamping device according to claim 1, characterized in that: The clamping assembly (3) further comprises a fixed shaft (36), the fixed shaft (36) passing through the two clamping jaws (32) in sequence, an elastic member (37) being sleeved on the fixed shaft (36), and two ends of the elastic member (37) respectively pressing against the two clamping jaws (32).

4. The clamping device according to claim 1, characterized in that: The clamping assembly (3) further comprises a first connecting plate (38) and a first pressing plate (39), wherein one end of the first connecting plate (38) is connected to the clamping claw (32), and the other end of the first connecting plate (38) is connected to the first pressing plate (39) so that a partial structure of the first transmission belt (33) is clamped between the first connecting plate (38) and the first pressing plate (39).

5. The clamping device according to claim 4, characterized in that: The clamping assembly (3) comprises a frame plate (34), the side wall of the first connecting plate (38) is provided with a first baffle (381), a first detection optical coupler (4) is fixed on the frame plate (34), and when the clamping jaw (32) is reset, the first baffle (381) can shield the first detection optical coupler (4).

6. The clamping device according to claim 2, characterized in that: The second driving member (31) is fixed on the frame plate (34), and the clamping assembly (3) further comprises a second connecting plate (311) and a second pressing plate (312), wherein the second connecting plate (311) is arranged at the output end of the second driving member (31), and the second connecting plate (311) is connected to the second pressing plate (312) so that a partial structure of the first transmission belt (33) is clamped between the second connecting plate (311) and the second pressing plate (312).

7. The clamping device according to claim 2, characterized in that: The clamping assembly (3) further comprises a tensioning wheel (310), wherein the tensioning wheel (310) is arranged on the frame plate (34), the tensioning wheel (310) is pressed against the first transmission belt (33), and the position of the tensioning wheel (310) can be adjusted to tension the first transmission belt (33).

8. The clamping device according to claim 2, characterized in that: The moving assembly (2) comprises a guide rail (22) provided on the frame (1) and extending along the first direction (X), and a slider (23) slidably engaged with the guide rail (22); the slider (23) is connected to the frame plate (34); and the first driving member (21) is transmission-connected to the frame plate (34).

9. The clamping device according to claim 8, characterized in that: The frame plate (34) is connected to the slider (23) via a fixed seat (341); the moving assembly (2) further comprises a second driven wheel (24) and a second transmission belt (25) transmission-connected to the first driving member (21); one end of the second transmission belt (25) is wound around the outer ring of the second driven wheel (24); a third connecting plate (342) and a third pressing plate (343) are provided on the fixed seat (341); the third connecting plate (342) and the third pressing plate (343) are connected so that a partial structure of the second transmission belt (25) is sandwiched between the third connecting plate (342) and the third pressing plate (343).

10. The clamping device according to claim 9, characterized in that: A second detection optical coupler (5), a third detection optical coupler (6) and a fourth detection optical coupler (7) are arranged on the frame (1) along the first direction (X); the second detection optical coupler (5), the third detection optical coupler (6) and the fourth detection optical coupler (7) are respectively used to detect that the fixed seat (341) is located at an initial position, a working position and an extreme position; a second baffle (344) is arranged on the fixed seat (341); the second baffle (344) is used to correspondingly block the second detection optical coupler (5), the third detection optical coupler (6) and the fourth detection optical coupler (7) when the fixed seat (341) moves to the initial position, the working position and the extreme position.

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