Laser machine

Abstract

The invention discloses a laser machine, and belongs to the technical field of laser processing. The device mainly comprises a carrying table, a camera module and a transmission device, the camera module is movably arranged above the carrying table, the transmission device is arranged on the side of the carrying table, the transmission device comprises a sliding base, a swing arm and a movable frame, the sliding base is arranged in a sliding mode in the vertical direction, the swing arm is hinged to the sliding base, and the movable frame is connected to the swing arm through a traction rope. The film is spread on the movable frame, when the sliding seat moves upwards to drive the movable frame to go over the carrying table upwards, the movable frame can swing along with the swing arm under the action of gravity to be close to a screen printing plate on the carrying table, and therefore the film swings downwards along with the movable frame and is attached to the screen printing plate in parallel. The camera module moves downwards and can be clamped with the opening module, and then the camera module moves relative to the screen printing plate on the carrying table, and the film can be driven to move to be aligned with the screen printing plate. The laser machine can replace manual work to achieve alignment of films, and the automation degree is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser processing, and in particular to a laser machine. Background Art

[0002] The electronics industry has extremely high requirements for the precision of parts. Laser technology can cut precision screens or film structures made of various materials (such as metals, ceramics, etc.) with extremely high precision, ensuring that the size and shape of the product meet the design requirements, improving the overall manufacturing quality and reliability, and at the same time, the cut is smooth and free of burrs and deformation that affect subsequent processing or use.

[0003] In the existing manufacturing process of knotless solar cell screens, in order to make the printed grid lines engraved by the laser machine accurately distributed along the latitude or longitude, it is necessary to place the film with the engraved pattern on the screen before using the laser machine, and manually adjust the position between the film and the screen so that the printed grid line pattern is located at the set position on the screen. The visual system of the laser machine then uses the Mark point (optical positioning point) on the film as a reference for engraving. However, existing laser machines require manual positioning of the film, and the degree of automation needs to be improved.

[0004] Therefore, it is necessary to provide a new laser machine. Summary of the invention

[0005] Based on the above problems existing in the prior art, an object of an embodiment of the present invention is to provide a laser machine that can replace manual work to achieve film alignment and improve the degree of automation.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a laser machine, including a carrier, a camera module and a transmission device, the camera module is movably arranged above the carrier, the transmission device is arranged on the side of the carrier, the carrier is used to place the screen, the transmission device includes a slide, a swing arm and a movable frame, the slide is slidably arranged in the vertical direction, the swing arm is hinged on the slide, the movable frame is connected to the swing arm through a traction rope, the film is spread on the movable frame, when the slide moves up and drives the movable frame to pass over the carrier, the movable frame can swing towards the screen on the carrier with the swing arm under the action of gravity, so that the film swings down with the movable frame and is parallel to the screen, and the movable frame is also provided with a support module, the camera module moves down to be clamped with the support module, and then the camera module moves relative to the screen on the carrier, so that the film can be driven to move to complete the alignment with the screen.

[0007] Further, the transmission device further includes a box body, which is installed on the side of the base on the carrier stage. The sliding seat is received in the box body. When the sliding seat moves down to the first position, that is, when the swing arm swings up to the vertical state of the movable frame, at this time, the hinge axis between the sliding seat and the swing arm is located on the side of the movable frame away from the carrier stage.

[0008] Further, the top of the box body is provided with an upper cover. When the sliding seat moves down to drive the movable frame to be received inside the box body, the upper cover flips to close the opening at the top of the box body.

[0009] Further, a winding wheel is installed on the swing arm, a traction rope is wound around the winding wheel, and one end of the traction rope is connected to the movable frame.

[0010] Further, the spreading module includes a spreader claw and a sleeve. The spreader claw is in a strip structure and is connected to the film. The sleeve is connected to the movable frame. The spreader claw is slidably matched with the sleeve. There are four spreader claws, and the four spreader claws are distributed at the four corner positions of the film. And the four spreader claws are slidably connected to the movable frame through the sleeve one by one. Thus, when the four spreader claws move away from the film to the end position, the film is spread open to make the film flat. That is, when the film is flat, the end of the spreader claw close to the sleeve abuts against the bottom end of the sleeve, so that the spreader claw is slidably limited on the sleeve.

[0011] Further, the camera module includes a camera and an illumination module arranged below the camera. The camera and the illumination module are detachably connected. The illumination module includes a base frame, a lamp group and a power connection structure. The lamp group is installed on the base frame, and the power connection structure is arranged on the upper end surface of the base frame. The power connection structure is electrically connected to the lamp group. A charging arm is provided on the side of the camera, and an electromagnet is also provided on the side of the camera. When the electromagnet is energized, it can magnetically attract the base frame, so that the illumination module is attracted to the camera. At the same time, the charging arm is connected to the power connection structure to supply power to the lamp group, and the lamp group is a power storage type structure.

[0012] Further, the laser machine further includes a base, on which a first sliding table moving along the X-axis is provided. A second sliding table moving along the Y-axis perpendicular to the X-axis is provided on the first sliding table. A third sliding table moving along the Z-axis perpendicular to the X-axis and the Y-axis is provided on the second sliding table. The camera module is installed on the third sliding table.

[0013] Further, the carrier stage includes a base and a turntable arranged above the base.

[0014] Further, a guide block is arranged on the swing arm and between the winding wheel and the movable frame. A guide hole is opened on the guide block, and the traction rope passes through the guide hole and is connected to the movable frame.

[0015] Furthermore, the spreading module also includes a clamping block, which is in a thin sheet-shaped structure. The clamping block is connected to the corner of the film sheet and extends along the length direction of the film sheet. The supporting claw is fixedly connected to the clamping block.

[0016] The beneficial effects of the present invention are as follows: the laser machine provided by the present invention includes a carrier, a camera module and a transmission device, the camera module is movably arranged above the carrier, the transmission device is arranged on the side of the carrier, the carrier is used to place a screen, the transmission device includes a slide, a swing arm and a movable frame, the slide is slidably arranged in a vertical direction, the swing arm is hinged on the slide, the movable frame is connected to the swing arm through a traction rope, the film is spread on the movable frame, when the slide moves up to drive the movable frame to move upward over the carrier, the movable frame can swing toward the screen on the carrier with the swing arm under the action of gravity, so that the film swings down with the movable frame and is parallel to the screen, and an opening module is also arranged on the movable frame, the camera module moves down to be clamped with the opening module, and then the camera module moves relative to the screen on the carrier, which can drive the film to move to complete alignment with the screen, thereby replacing manual alignment of the film and improving the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a laser machine provided in an embodiment of the present invention.

[0019] Figure 2 A schematic structural diagram of a transmission device provided by an embodiment of the present invention in a first working state.

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a transmission device provided in an embodiment of the present invention.

[0021] Figure 4 An exploded view of a transmission device provided in an embodiment of the present invention.

[0022] Figure 5 A schematic diagram of the structure of a transmission device provided by an embodiment of the present invention in a second working state.

[0023] Figure 6 A schematic diagram of the positional relationship between a movable frame and a film provided in an embodiment of the present invention.

[0024] Figure 7 A schematic diagram of an exploded view of a camera module provided in an embodiment of the present invention.

[0025] Figure 8 A schematic diagram of the structure of a transmission device and a camera module in a working state provided in an embodiment of the present invention.

[0026] Figure 9 Schematic structural diagram of the transmission device and the lighting module provided by an embodiment of the present invention in a working state.

[0027] Among them, the reference numerals in the figure: 100, screen; 200, film; 10, stage; 11, base; 12, turntable; 20, camera module; 21, camera; 22, lighting module; 221, chassis; 222, lamp group; 223, power connection structure; 23, charging arm; 24, electromagnet; 30, transmission device; 31, sliding seat; 32, swing arm; 33, movable frame; 34, winding wheel; 341, traction rope; 342, winding driver; 35, guide block; 351, guide hole; 36, spreading module; 361, spreading claw; 362, clamping arm; 363, clamping block; 364, sleeve; 37, hinge structure; 38, lower swing limit; 39, box body; 391, upper cover; 40, slide table 1; 50, slide table 2; 60, slide table 3; 70, base. Specific embodiments

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] It should be noted that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0032] Reference to "one embodiment" or "an embodiment" throughout the specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment", "in some embodiments", or "in some of these embodiments" appearing throughout the specification do not all refer to the same embodiment. Additionally, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0033] Please refer to Figures 1 to 9 As shown, a laser machine provided by the present invention will now be described. The laser machine includes a stage 10, an imaging module 20, and a transmission device 30. The imaging module 20 is movably disposed above the stage 10, and the transmission device 30 is disposed on the side of the stage 10. A stencil 100 is placed on the stage 10. The transmission device 30 includes a sliding seat 31, a swing arm 32, and a movable frame 33. The sliding seat 31 is slidably disposed in the vertical direction. The swing arm 32 is hinged to the sliding seat 31. The movable frame 33 is connected to the swing arm 32 by a traction rope 341. A film 200 is spread on the movable frame 33. When the sliding seat 31 moves upward to drive the movable frame 33 to move upward over the stage 10, the movable frame 33 can swing under the action of gravity along with the swing arm 32 and lean against the stencil 100 on the stage 10, so that the film 200 swings downward along with the movable frame 33 and is parallelly attached to the stencil 100. A spreading module 36 is further disposed on the movable frame 33. When the imaging module 20 moves downward, it can be engaged with the spreading module 36. Then, by moving the imaging module 20 relative to the stencil 100 on the stage 10, the film 200 can be driven to move to complete alignment with the stencil 100, thus replacing manual operation to achieve alignment of the film and improving the degree of automation.

[0034] In some of these embodiments, the film 200 has a square sheet structure.

[0035] Such as Figure 1As shown, in some of the embodiments, the laser machine further includes a base 70. A first slide 40 that moves along the X-axis is provided on the base 70. A second slide 50 that moves along the Y-axis perpendicular to the X-axis is provided on the first slide 40. A third slide 60 that moves along the Z-axis perpendicular to the X-axis and the Y-axis is provided on the second slide 50. The camera module 20 is installed on the third slide 60. Thus, the camera module 20 can move along the X-axis, Y-axis, or Z-axis with the third slide 60.

[0036] As Figure 2 As shown, in some of the embodiments, the carrier 10 includes a base 11 and a turntable 12 provided above the base 11. The upper part of the turntable 12 is used to place the stencil 100, so that the stencil 100 can be driven to perform a circular rotational motion to adjust the placement angle of the stencil 100. In cooperation with the three-axis movement of the camera module 20, the film 200 can be accurately aligned to a specified position on the stencil 100.

[0037] As Figure 2 As shown, in some of the embodiments, the transmission device 30 further includes a box body 39. The box body 39 is installed on the side of the base 11 of the carrier 10. The slide base 31 is received in the box body 39. When the slide base 31 moves down to the first position, that is, when the swing arm 32 swings upward to the vertical state of the movable frame 33, at this time, the hinge axis between the slide base 31 and the swing arm 32 is located on the side of the movable frame 33 away from the carrier 10. Thus, the center of gravity of the movable frame 33 will exert a force on the swing arm 32 to drive the swing arm 32 to twist downward and close to the carrier 10, driving the movable frame 33 to abut against the side wall of the box body 39 close to the carrier 10. When the slide base 31 moves up to drive the movable frame 33 to move upward beyond the carrier 10, since the movable frame 33 loses the support of the side wall of the box body 39, the movable frame 33 will swing close to the stencil 100 on the carrier 10 under the action of gravity along with the swing arm 32, so that the film 200 will swing down with the movable frame 33 and be parallel and abutted against the stencil 100.

[0038] As Figure 5 As shown, in some of the embodiments, the slide base 31 and the swing arm 32 are hinged through a hinge structure 37. The downward and close-to-the-carrier-10 rotation of the swing arm 32 relative to the slide base 31 around the hinge structure 37 is limited by a downward swing limit 38. Specifically, the downward swing limit 38 is provided between the slide base 31 and the swing arm 32. When the swing arm 32 rotates downward relative to the slide base 31 to drive the movable frame 33 to be parallel and abutted against the stencil 100 on the carrier 10, the downward swing limit 38 blocks between the slide base 31 and the swing arm 32, thus preventing the swing arm 32 from rotating relative to the slide base 31 and keeping the swing arm 32 in the state of making the movable frame 33 parallel to the stencil 100. More precisely, in this embodiment, the downward swing limit 38 is fixedly installed on the slide base 31.

[0039] As Figure 5As shown, in some embodiments, an upper cover 391 is provided on the top of the box body 39. When the slide 31 moves downward to drive the movable frame 33 to be received into the box body 39, the upper cover 391 flips over to close the top opening of the box body 39, thereby receiving the film 200 into the box body 39 to prevent the dirt generated by the laser engraving from contaminating the pattern on the film 200. Specifically, the upper cover 391 can be connected to the box body 39 through a torsion spring, so that the upper cover 391 always has a tendency to flip over and close the top opening of the box body 39, so that the upper cover 391 can realize the function of automatic flipping.

[0040] like Figure 4 As shown, in some embodiments, a winding wheel 34 is installed on the swing arm 32, and a traction rope 341 is wound on the winding wheel 34, and one end of the traction rope 341 is connected to the movable frame 33. In this way, when the winding wheel 34 rotates to rewind the traction rope 341, the movable frame 33 can be pulled toward the swing arm 32 until the movable frame 33 abuts against the swing arm 32, so that the movable frame 33 and the swing arm 32 are locked, so that the movable frame 33 follows the swing arm 32 to make a swinging motion, thereby preventing the movable frame 33 from shaking randomly when the swing arm 32 swings and causing an accidental collision. In addition, when the movable frame 33 swings down and abuts against the screen 100 in parallel, the movable frame 33 can be separated from the swing arm 32 and move independently by controlling the winding wheel 34 to relax, thereby facilitating the adjustment of the relative position between the film 200 and the screen 100.

[0041] like Figure 4 As shown, in some embodiments, a guide block 35 is provided on the swing arm 32 and between the winding wheel 34 and the movable frame 33, and a guide hole 351 is provided on the guide block 35. The traction rope 341 passes through the guide hole 351 and is connected to the movable frame 33, so that when the winding wheel 34 winds up the traction rope 341 and pulls the movable frame 33 close to the swing arm 32, it is convenient to guide the movable frame 33 to move to a set position on the swing arm 32. More specifically, the winding wheel 34 is driven by a winding driver 342, and the winding driver 342 is installed on the swing arm 32.

[0042] like Figure 6As shown, in some of these embodiments, the spreading module 36 includes spreading claws 361 and a sleeve 364. The spreading claws 361 are in a strip structure. The spreading claws 361 are connected to the film 200. The sleeve 364 is connected to the movable frame 33. The spreading claws 361 are slidably engaged with the sleeve 364. There are four spreading claws 361, and the four spreading claws 361 are distributed at the four corner positions of the film 200. And the four spreading claws 361 are respectively slidably connected to the movable frame 33 through the sleeve 364. Thus, when the four spreading claws 361 move away from the film 200 to the end position, the film 200 is spread to be flattened and unfolded. That is, when the film 200 is flattened and unfolded, the end of the spreading claw 361 close to the sleeve 364 abuts against the bottom end of the sleeve 364, so that the sliding of the spreading claw 361 on the sleeve 364 is limited. Through the above technical solution, the film 200 can maintain its original state of the material when not under external force, avoiding the film 200 from being stressed for a long time and thus prematurely reaching the fatigue limit, so as to improve the service life of the film 200.

[0043] As Figure 1 shown, in some of these embodiments, the spreading module 36 further includes clamping blocks 363. The clamping blocks 363 are in a thin sheet structure. The clamping blocks 363 are connected to the corners of the film 200 and extend along the side length direction of the film 200. The spreading claws 361 are fixedly connected to the clamping blocks 363, so that the spreading claws 361 are connected to the film 200 through the clamping blocks 363. In this way, the clamping blocks 363 can increase the contact surface between the spreading claws 361 and the film 200, avoiding stress concentration and damaging the film 200.

[0044] As Figure 8 shown, in some of these embodiments, the imaging module 20 includes a camera 21 and an illumination module 22 disposed below the camera 21. When the imaging module 20 moves downwards so that the illumination module 22 enters the central position of the four spreading claws 361, then under the pushing of the illumination module 22, the four spreading claws 361 are forced to move away from the film 200 to the end position, so that the film 200 is unfolded. At the same time, the imaging module 20 translates along the surface of the stencil 100, and further can drive the movable frame 33 and the film 200 to translate on the surface of the stencil 100. Cooperating with the rotation of the stencil 100, further the film 200 can be moved to complete alignment with the stencil 100.

[0045] As Figure 6 shown, in some of these embodiments, a clamping arm 362 is vertically provided at the end of the spreading claw 361 close to the center of the film 200. When the illumination module 22 enters the central position of the four spreading claws 361, the illumination module 22 abuts against the clamping arm 362, increasing the contact surface between the spreading claw 361 and the illumination module 22, so that the illumination module 22 is stably in contact with the spreading claw 361.

[0046] In some of these embodiments, the camera module 20 positions and aligns with the printing screen 100 by visually guiding and positioning the moving film 200. The principle of visual guidance and positioning is to transmit the target to be detected in the form of an image to a dedicated image processing system using a camera, and then convert the feature information of the image into a processable digital signal. The features of the target, such as area, position, length, quantity, etc., are extracted through different algorithms. Finally, the operation result is output according to the preset tolerance or other conditions to achieve functions such as automatic recognition, detection and measurement, and guidance and positioning. The specific visual guidance and positioning is a mature existing technology and will not be elaborated here.

[0047] As Figure 7 shown, in some of these embodiments, the camera 21 and the lighting module 22 are detachably connected. When the camera module 20 moves downward to drive the lighting module 22 to push the four support claws 361 to move and unfold the film 200, the lighting module 22 can be separated from the camera 21 to keep the film 200 in the unfolded state. At the same time, the camera 21 can move away from the lighting module 22 to identify the Mark points on the film 200. During this process, the lighting module 22 can keep pushing the four support claws 361 to maintain the unfolded state of the film 200. Specifically, referring to Figure 7 shown, the lighting module 22 includes a chassis 221, a lamp group 222, and a power connection structure 223. The lamp group 222 is installed on the chassis 221, and the power connection structure 223 is provided on the upper end surface of the chassis 221. The power connection structure 223 is electrically connected to the lamp group 222. A charging arm 23 is provided on the side of the camera 21, and an electromagnet 24 is also provided on the side of the camera 21. When the electromagnet 24 is energized, it can magnetically attract the chassis 221, so that the lighting module 22 is attracted to the camera 21. At the same time, the charging arm 23 is connected to the power connection structure 223 to supply power to the lamp group 222. The lamp group 222 is a storage battery structure, so that the lighting module 22 can work even when it is separated from the camera 21, and the lamp group 222 can be charged when the charging arm 23 is in contact connection with the power connection structure 223. In this embodiment, the charging arm 23 and the power connection structure 223 are a contact charging structure. It can be understood that in some other embodiments not shown in the figures, the charging arm 23 and the power connection structure 223 can also be a wireless charging structure.

[0048] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser machine, characterized in that: The invention comprises a carrier, a camera module and a transmission device, wherein the camera module is movably arranged above the carrier, the transmission device is arranged on the side of the carrier, the carrier is used for placing a screen, the transmission device comprises a slide, a swing arm and a movable frame, the slide is slidably arranged in a vertical direction, the swing arm is hinged on the slide, the movable frame is connected to the swing arm through a traction rope, and the film is spread on the movable frame. When the slide moves upward to drive the movable frame to pass over the carrier, the movable frame can swing toward the screen on the carrier along with the swing arm under the action of gravity, so that the film swings down with the movable frame and is parallel to the screen. The movable frame is also provided with a spreading module, and the camera module can be clamped with the spreading module when it moves downward, and then the camera module can be moved relative to the screen on the carrier to drive the film to move to complete the alignment with the screen.

2. The laser machine according to claim 1, characterized in that: The transmission device also includes a box body, which is installed on the side of the base on the platform. The slide is accommodated in the box body. When the slide moves down to the first position, the swing arm swings up to the vertical state of the movable frame. At this time, the hinge axis between the slide and the swing arm is located on the side of the movable frame away from the platform.

3. The laser machine according to claim 2, characterized in that: An upper cover is provided on the top of the box body. When the slide seat moves downward to drive the movable frame to be retracted into the box body, the upper cover is turned over to close the top opening of the box body.

4. The laser machine according to claim 1, characterized in that: A winding wheel is installed on the swing arm, a traction rope is wound on the winding wheel, and one end of the traction rope is connected to the movable frame.

5. The laser machine according to claim 1, characterized in that: The stretching module includes a supporting claw and a sleeve. The supporting claw is in a strip-shaped structure. The supporting claw is connected to the film. The sleeve is connected to the movable frame. The supporting claw and the sleeve are slidably matched. There are four supporting claws, which are distributed at the four corners of the film. The four supporting claws are slidably connected to the movable frame one by one through the sleeve. Therefore, when the four supporting claws move away from the film to the end position, the film is stretched and unfolded smoothly. That is, when the film is unfolded smoothly, the end of the supporting claw close to the sleeve is against the bottom end of the sleeve, so that the supporting claw is limited by the sliding on the sleeve.

6. The laser machine according to claim 1, characterized in that: The camera module includes a camera and a lighting module arranged under the camera, the camera and the lighting module are detachably connected, the lighting module includes a base frame, a light group and a power connection structure, the light group is installed on the base frame, the power connection structure is arranged on the upper end surface of the base frame, the power connection structure is electrically connected to the light group, a charging arm is provided on the side of the camera, and an electromagnet is also provided on the side of the camera, the electromagnet can magnetically attract the base frame when powered on, so that the lighting module is attracted to the camera, and at the same time the charging arm is connected to the power connection structure to realize power supply to the light group, and the light group is a power storage structure.

7. The laser machine according to claim 1, characterized in that: The laser machine also includes a base, on which is provided a slide 1 that moves along an X-axis, on which is provided a slide 2 that moves along a Y-axis perpendicular to the X-axis, on which is provided a slide 3 that moves along a Z-axis perpendicular to the X-axis and the Y-axis, and on which is provided a camera module, a slide 3.

8. The laser machine according to claim 7, characterized in that: The carrier comprises a base and a turntable arranged above the base.

9. The laser machine according to claim 4, characterized in that: A guide block is arranged on the swing arm and between the winding wheel and the movable frame. A guide hole is opened on the guide block. The traction rope passes through the guide hole and is connected with the movable frame.

10. The laser machine according to claim 5, characterized in that: The spreading module further comprises a clamping block, which is in a sheet-shaped structure. The clamping block is connected to the corner of the film sheet and extends along the length direction of the film sheet. The supporting claw is fixedly connected to the clamping block.

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