CN221642922U - A clamp transfer and positioning mechanism for a film tearing machine - Google Patents

Abstract

The utility model discloses a clamp transfer and positioning mechanism for a film tearing machine, including a clamp assembly for clamping materials, an X-axis moving assembly for driving the clamp assembly to move along the X-axis direction, and a Y-axis moving assembly for driving the clamp assembly to move along the Y-axis direction, the Y-axis moving assembly is fixed to the frame of the film tearing machine, the movable end of the Y-axis moving assembly is fixed to the X-axis moving assembly, and the movable end of the X-axis moving assembly is fixed to the clamp assembly; the clamp assembly includes a clamp fixing plate, a front clamp block slidably arranged on the clamp fixing plate, a rear clamp block slidably arranged on the clamp fixing plate, and a clamp block driving assembly for driving the front clamp block and the rear clamp block to slide toward or away from each other on the clamp fixing plate. The utility model can realize multiple positioning of materials through the double-axis CNC positioning clamp assembly of the X-axis moving assembly and the Y-axis moving assembly, and adopts a flattened structure design, which is light and thin, reduces invalid strokes, and effectively improves the operation efficiency of the equipment.

Description

A clamp transfer and positioning mechanism for a film tearing machine

Technical Field

The utility model relates to the technical field of film tearing machines, in particular to a clamp transfer and positioning mechanism of the film tearing machine.

Background Art

With the continuous development of science and technology and the improvement of people's living standards, mobile phones and tablet computers have become indispensable electronic devices in our daily lives. In the assembly process of mobile phones and tablet computers, many auxiliary materials of different sizes need to be mounted. After the auxiliary materials are mounted, the release films of these auxiliary materials need to be torn off for subsequent assembly operations.

At present, the industry has also developed some automatic film tearing machines that can automatically complete a series of actions such as loading, positioning, film tearing, and unloading of materials such as mobile phones and tablets. In the existing automatic film tearing machines, the material positioning needs to first be placed on the positioning platform by the transfer mechanism, and then the material is positioned by the positioning mechanism on the positioning platform, so that the auxiliary materials on the material are positioned just below the mucous membrane end of the film tearing mechanism of the film tearing machine, so that the film tearing mechanism can tear the film. However, the above-mentioned material positioning method can only position the material once, so that the automatic film tearing machine can only tear off one of the auxiliary materials that need to be torn off on the material at a time; if there are multiple auxiliary materials that need to be torn off on the material, multiple devices are required, resulting in low production efficiency and high cost.

Utility Model Content

In order to overcome the problem that the positioning method of the automatic film tearing machine in the prior art can only position the material once, the utility model provides a clamp transfer positioning mechanism of the film tearing machine.

The technical solution of the utility model is as follows:

A clamp transfer and positioning mechanism for a film tearing machine, comprising a clamp assembly for clamping materials, an X-axis moving assembly for driving the clamp assembly to move along the X-axis direction, and a Y-axis moving assembly for driving the clamp assembly to move along the Y-axis direction, wherein the Y-axis moving assembly is fixed to a frame of the film tearing machine, a movable end of the Y-axis moving assembly is fixed to the X-axis moving assembly, and a movable end of the X-axis moving assembly is fixed to the clamp assembly;

The clamp assembly includes a clamp fixing plate, a front clamp block slidably arranged on the clamp fixing plate, a rear clamp block slidably arranged on the clamp fixing plate, and a clamp block driving assembly for driving the front clamp block and the rear clamp block to slide toward or away from each other on the clamp fixing plate.

Furthermore, the clamp block driving assembly includes a clamping cylinder, a bearing push rod, a front push plate and a rear push plate. The clamping cylinder is transversely fixed to one side of the clamp fixing plate along the X-axis. One end of the bearing push rod is fixed to the telescopic end of the clamping cylinder. The bottom of the other end of the bearing push rod is respectively provided with a transverse front push roller and a rear push roller at the positions corresponding to the front push plate and the rear push plate. The front push plate and the rear push plate are both slidably arranged on the clamp fixing plate along the Y-axis direction. The rear clamping block is respectively fixed on the front push plate and the rear push plate, and an inclined front roller groove is provided at one end of the front push plate close to the bearing push rod, and the front push roller is located in the front roller groove and can slide along the front roller groove, and an inclined rear roller groove is provided at one end of the rear push plate close to the bearing push rod, and the rear push roller is located in the rear roller groove and can slide along the rear roller groove, and the inclination direction of the front roller groove is opposite to the inclination direction of the rear roller groove.

Furthermore, the fixture fixing plate is provided with a front push plate sliding groove for the front push plate to slide along the Y-axis direction and a rear push plate sliding groove for the rear push plate to slide along the Y-axis direction.

Furthermore, the top surfaces of the front push plate and the rear push plate are flush with the top surface of the fixture fixing plate.

Furthermore, a plurality of sets of transverse auxiliary rollers are provided on the left and right inner walls of the front push plate slide groove and the rear push plate slide groove.

Further, the end of the front push plate away from the bearing push rod is provided with at least two long first adjustment grooves distributed side by side along the X-axis, and the bottom of the front clamping block is provided with at least two first fixing holes matched with the first adjustment grooves, and the first adjustment grooves and the corresponding first fixing holes are matched with fixing members to fix the front clamping block on the front push plate;

The end of the rear push plate away from the bearing push rod is provided with at least two second long adjustment grooves distributed side by side along the X-axis, and the bottom of the rear clamping block is provided with at least two second fixing holes matching with the second adjustment grooves, and the second adjustment grooves and the corresponding second fixing holes cooperate with fixing parts to fix the rear clamping block on the rear push plate.

Furthermore, a front buffer strip is provided on a side of the front clamp block close to the rear clamp block, a first inclined surface is provided on a side of the front buffer strip close to the rear clamp block, an angle between the first inclined surface and the bottom surface of the front buffer strip is an obtuse angle, a rear buffer strip is provided on a side of the rear clamp block close to the front clamp block, a second inclined surface is provided on a side of the rear buffer strip close to the front clamp block, an angle between the second inclined surface and the bottom surface of the rear buffer strip is an obtuse angle.

Furthermore, a push rod fixing seat is provided on the clamp fixing plate, and the push rod fixing seat surrounds the bearing push rod, and the top of the end of the bearing push rod away from the clamping cylinder is respectively provided with a first limiting guide rod and a second limiting guide rod at positions corresponding to the front pushing roller and the rear pushing roller, the first limiting guide rod and the second limiting guide rod are both perpendicular to the bearing push rod, and the top of the push rod fixing seat is respectively provided with a first guide rod slide groove and a second guide rod slide groove at positions corresponding to the first limiting guide rod and the second limiting guide rod, the top of the first limiting guide rod is located in the first guide rod slide groove and can slide left and right along the first guide rod slide groove, and the top of the second limiting guide rod is located in the second guide rod slide groove and can slide left and right along the second guide rod slide groove.

Furthermore, a connecting piece fixed to the movable end of the X-axis moving component is provided at the rear end of the fixture fixing plate.

Furthermore, an X-axis slider is provided at the rear end of the fixture fixing plate, and an X-axis slide rail slidably connected to the X-axis slider is provided on the X-axis moving component.

Compared with the prior art, the beneficial effects of the utility model are:

The fixture transfer and positioning mechanism provided by the utility model can realize multiple positioning of materials through the double-axis CNC positioning fixture assembly of the X-axis moving assembly and the Y-axis moving assembly, and adopts a flat structure design, which is light and thin, reduces invalid stroke, effectively improves equipment operation efficiency and production cost, and is suitable for various materials with high versatility. At the same time, the clamp block driving assembly adopts an ultra-thin bidirectional synchronous roller push plate design, which has a special structure, is exquisite and simple, is universal in size, clamps quickly and stably, and is simple and quick to change.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a top view of the clamp assembly of the present invention;

FIG. 3 is a schematic structural diagram of a clamp assembly in the present invention.

In the figure,

1. Clamp assembly; 11. Clamp fixing plate; 111. Front push plate slide; 112. Rear push plate slide; 113. Auxiliary roller; 114. Connector; 115. X-axis slider; 12. Front clamp block; 121. First fixing hole; 122. Front buffer strip; 123. First inclined surface; 13. Rear clamp block; 131. Second fixing hole; 132. Rear buffer strip; 133. Second inclined surface; 14. Clamping cylinder; 15. Bearing push rod; 1 51. front push roller; 152. rear push roller; 153. first limit guide rod; 154. second limit guide rod; 16. front push plate; 161. front roller slide groove; 162. first adjustment groove; 17. rear push plate; 171. rear roller slide groove; 172. second adjustment groove; 18. push rod fixing seat; 181. first guide rod slide groove; 182. second guide rod slide groove; 2. X-axis moving assembly; 3. Y-axis moving assembly; 4. frame.

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is stated that the embodiments described below are only used to explain the utility model and are not used to limit the utility model.

It should be noted that the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The indication of orientation or position relationship is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship in which the application product is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are only used for the purpose of convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

Please refer to Fig. 1. This embodiment provides a clamp transfer and positioning mechanism of a film tearing machine, including a clamp assembly 1 for clamping materials, an X-axis moving assembly 2 for driving the clamp assembly 1 to move along the X-axis direction, and a Y-axis moving assembly 3 for driving the clamp assembly 1 to move along the Y-axis direction. The Y-axis moving assembly 3 is fixed to the frame 4 of the film tearing machine, the movable end of the Y-axis moving assembly 3 is fixed to the X-axis moving assembly 2, and the movable end of the X-axis moving assembly 2 is fixed to the clamp assembly 1. The clamp transfer and positioning mechanism 4 receives the materials grabbed by the feeding mechanism of the film tearing machine through the clamp assembly 1, the X-axis moving assembly 2, and the Y-axis moving assembly 3, and sequentially transports the materials to the film tearing station and the unloading station for film tearing and unloading operations. After the feeding mechanism of the film tearing machine grabs the material, the X-axis moving component 2 cooperates with the Y-axis moving component 3 to move the clamp component 1 to the bottom of the feeding mechanism. After the feeding mechanism puts the material on the clamp component 1, the clamp component 1 clamps the material, and then the X-axis moving component 2 cooperates with the Y-axis moving component 3 to move the clamp component 1 to the film tearing station, so that the auxiliary material on the material is positioned just below the mucous membrane end of the film tearing mechanism of the film tearing machine, and then wait for the film tearing mechanism to tear off the release film on the auxiliary material; if there are multiple auxiliary materials that need to be torn off on the material, each auxiliary material needs to be positioned once, and each time the film tearing mechanism is positioned, the release film on the corresponding auxiliary material will be torn off, thereby realizing multi-film cycle film tearing; after the auxiliary material on the material is torn off, the X-axis moving component 2 cooperates with the Y-axis moving component 3 to move the clamp component 1 to the unloading station, waiting for the unloading mechanism of the film tearing machine to grab it.

Among them, the clamp assembly 1 is a flat structure, including a clamp fixing plate 11, a front clamp block 12 slidably set on the clamp fixing plate 11, a rear clamp block 13 slidably set on the clamp fixing plate 11, and a clamp block driving assembly, and the clamp block driving assembly is used to drive the front clamp block 12 and the rear clamp block 13 to slide toward or away from each other on the clamp fixing plate 11 to clamp or release the material. Among them, when the front clamp block 12 and the rear clamp block 13 clamp the material, they clamp the front and back sides of the material respectively. The clamp transfer and positioning mechanism provided by the utility model can realize multiple positioning of the material through the double-axis CNC positioning clamp assembly 1 of the X-axis moving assembly 2 and the Y-axis moving assembly 3, and adopts a flat structure design, the structure is light and thin, and the invalid stroke is reduced, which effectively improves the equipment operation efficiency and production cost, is suitable for various materials, and has high versatility.

Please refer to Figures 2 and 3. In one embodiment, the clamp block driving assembly includes a clamping cylinder 14, a bearing push rod 15, a front push plate 16 and a rear push plate 17. The clamping cylinder 14 is fixed to one side of the clamp fixing plate 11 along the X-axis. One end of the bearing push rod 15 is fixed to the telescopic end of the clamping cylinder 14. The bottom of the other end of the bearing push rod 15 is respectively provided with a transverse front push roller 151 and a rear push roller 152 at the positions corresponding to the front push plate 16 and the rear push plate 17. The front push plate 16 and the rear push plate 17 are both slidably arranged on the clamp fixing plate 11 along the Y-axis direction. The front clamp block 12 and the rear clamp block 13 are respectively fixed at On the front push plate 16 and the rear push plate 17, an end of the front push plate 16 close to the bearing push rod 15 is provided with an inclined front roller groove 161, the front push roller 151 is located in the front roller groove 161 and can slide along the front roller groove 161, and an end of the rear push plate 17 close to the bearing push rod 15 is provided with an inclined rear roller groove 171, the rear push roller 152 is located in the rear roller groove 171 and can slide along the rear roller groove 171, and the inclination direction of the front roller groove 161 is opposite to the inclination direction of the rear roller groove 171, such as the front roller groove 161 is inclined forward, and the rear roller groove 171 is inclined backward. When the clamping cylinder 14 extends the bearing push rod 15, the bearing push rod 15 drives the front push roller 151 and the rear push roller 152 to slide along the front roller slide groove 161 and the rear roller slide groove 171 respectively. Since the inclination direction of the front roller slide groove 161 is opposite to the inclination direction of the rear roller slide groove 171, the front push plate 16 slides forward and the rear push plate 17 slides backward. At this time, the front clamp block 12 and the rear clamp block 13 move away from each other, releasing the material on the clamp fixing plate 11; conversely, when the clamping cylinder 14 retracts the bearing push rod 15, the front clamp block 12 and the rear clamp block 13 move closer to each other, clamping the material on the clamp fixing plate 11. The above-mentioned clamp block drive assembly adopts an ultra-thin bidirectional synchronous roller push plate design, which has a special structure, is exquisite and simple, has universal product size, fast and stable clamping, and is simple and fast to change models.

Please refer to Figure 2. In one embodiment, the clamp fixing plate 11 is provided with a front push plate slide groove 111 for the front push plate 16 to slide along the Y-axis direction and a rear push plate slide groove 112 for the rear push plate 17 to slide along the Y-axis direction. The top surfaces of the front push plate 16 and the rear push plate 17 are flush with the top surface of the clamp fixing plate 11, thereby ensuring that the material can be placed stably on the clamp fixing plate 11, and also making the clamping of the front clamp block 12 and the rear clamp block 13 more stable.

Please refer to Figure 2. In one embodiment, multiple sets of horizontal auxiliary rollers 113 are provided on the left and right inner walls of the front push plate slot 111 and the rear push plate slot 112 to reduce the friction between the front push plate 16 and the front push plate slot 111, and between the rear push plate 17 and the rear push plate slot 112, so that the front push plate 16 and the rear push plate 17 can slide smoothly back and forth along the front push plate slot 111 and the rear push plate slot 112.

Please refer to Figure 2. In one embodiment, the end of the front push plate 16 away from the bearing push rod 15 is provided with at least two long first adjustment grooves 162 distributed side by side along the X-axis, and the bottom of the front clamping block 12 is provided with at least two first fixing holes 121 that match the first adjustment grooves 162. The first adjustment grooves 162 and the corresponding first fixing holes 121 cooperate with the fixing parts to fix the front clamping block 12 on the front push plate 16. By loosening the fixing parts, the position of the front clamping block 12 on the front push plate 16 can be adjusted, thereby adjusting the distance between the front clamping block 12 and the rear clamping block 13. The adjustment range is the length of the first adjustment groove 162. At least two second long adjustment grooves 172 are arranged side by side along the X-axis at one end of the rear push plate 17 away from the bearing push rod 15, and at least two second fixing holes 131 matching the second adjustment grooves 172 are arranged at the bottom of the rear clamping block 13. The second adjustment grooves 172 and the corresponding second fixing holes 131 match the fixing parts to fix the rear clamping block 13 on the rear push plate 17. The position of the rear clamping block 13 on the rear push plate 17 can be adjusted by loosening the fixing parts, thereby adjusting the spacing between the front clamping block 12 and the rear clamping block 13, and the adjustment range is the length of the second adjustment groove 172. Through the arrangement of the first adjustment groove 162, the second adjustment groove 172, the first fixing hole 121 and the second fixing hole 131, the spacing between the front clamping block 12 and the rear clamping block 13 can be quickly adjusted according to the width of the material to adapt to materials of various sizes, and the front clamping block 12 and the rear clamping block 13 can be easily replaced.

Please refer to FIG3 . In one embodiment, a front buffer strip 122 is provided on the side of the front clamp block 12 close to the rear clamp block 13, and a rear buffer strip 132 is provided on the side of the rear clamp block 13 close to the front clamp block 12, so as to prevent the front clamp block 12 and the rear clamp block 13 from damaging the material. At the same time, a first inclined surface 123 is provided on the side of the front buffer strip 122 close to the rear clamp block 13, and the angle between the first inclined surface 123 and the bottom surface of the front buffer strip 122 is an obtuse angle. A second inclined surface 133 is provided on the side of the rear buffer strip 132 close to the front clamp block 12, and the angle between the second inclined surface 133 and the bottom surface of the rear buffer strip 132 is an obtuse angle, so that when the front clamp block 12 and the rear clamp block 13 clamp the material, the material is pressed against the fixture fixing plate 11, and the clamping is more stable.

Please refer to Figure 3. In one embodiment, a push rod fixing seat 18 is provided on the clamp fixing plate 11, and the push rod fixing seat 18 surrounds the bearing push rod 15. The top of the end of the bearing push rod 15 away from the clamping cylinder 14 is respectively provided with a first limiting guide rod 153 and a second limiting guide rod 154 at the position corresponding to the front pushing roller 151 and the rear pushing roller 152. The first limiting guide rod 153 and the second limiting guide rod 154 are both perpendicular to the bearing push rod 15. The top of the push rod fixing seat 18 is respectively provided with a first guide rod sliding groove 181 and a second guide rod sliding groove 182 at the position corresponding to the first limiting guide rod 153 and the second limiting guide rod 154. The top of the first limiting guide rod 153 is located in the first guide rod sliding groove 181 and can slide left and right along the first guide rod sliding groove 181. The top of the second limiting guide rod 154 is located in the second guide rod sliding groove 182 and can slide left and right along the second guide rod sliding groove 182. The arrangement of the push rod fixing seat 18 , the first limiting guide rod 153 and the second limiting guide rod 154 can make the extension and retraction of the bearing push rod 15 more stable.

Please refer to FIG. 3 . In one embodiment, a connecting piece 114 is provided at the rear end of the fixture fixing plate 11, and the fixture fixing plate 11 is fixed to the movable end of the X-axis moving assembly 2 through the connecting piece 114. At the same time, an X-axis slider 115 is provided at the rear end of the fixture fixing plate 11, and an X-axis slide rail slidably connected to the X-axis slider 115 is provided on the X-axis moving assembly 2. The X-axis slider 115 and the X-axis slide rail can enable the X-axis moving assembly 2 to smoothly drive the fixture fixing plate 11 to move along the X-axis direction.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims (10)

1. A clamp transfer and positioning mechanism for a film tearing machine, characterized in that it comprises a clamp assembly for clamping materials, an X-axis moving assembly for driving the clamp assembly to move along the X-axis direction, and a Y-axis moving assembly for driving the clamp assembly to move along the Y-axis direction, wherein the Y-axis moving assembly is fixed to a frame of the film tearing machine, a movable end of the Y-axis moving assembly is fixed to the X-axis moving assembly, and a movable end of the X-axis moving assembly is fixed to the clamp assembly; The clamp assembly includes a clamp fixing plate, a front clamp block slidably arranged on the clamp fixing plate, a rear clamp block slidably arranged on the clamp fixing plate, and a clamp block driving assembly for driving the front clamp block and the rear clamp block to slide toward or away from each other on the clamp fixing plate. 2. The clamp transfer and positioning mechanism of the film tearing machine according to claim 1 is characterized in that the clamp block driving assembly includes a clamping cylinder, a bearing push rod, a front push plate and a rear push plate, the clamping cylinder is transversely fixed to one side of the clamp fixing plate along the X-axis, one end of the bearing push rod is fixed to the telescopic end of the clamping cylinder, and the bottom of the other end of the bearing push rod corresponds to the position of the front push plate and the rear push plate, respectively, and the front push plate and the rear push plate are both slidably arranged on the clamp along the Y-axis direction. The front clamping block and the rear clamping block are respectively fixed on the front push plate and the rear push plate, the front push plate is provided with an inclined front roller groove at one end close to the bearing push rod, the front push roller is located in the front roller groove and can slide along the front roller groove, the rear push plate is provided with an inclined rear roller groove at one end close to the bearing push rod, the rear push roller is located in the rear roller groove and can slide along the rear roller groove, and the inclination direction of the front roller groove is opposite to the inclination direction of the rear roller groove. 3. The clamp transfer and positioning mechanism of the film tearing machine according to claim 2 is characterized in that a front push plate slide groove for the front push plate to slide along the Y-axis direction and a rear push plate slide groove for the rear push plate to slide along the Y-axis direction are provided on the clamp fixing plate. 4. The clamp transfer and positioning mechanism of the film tearing machine according to claim 3 is characterized in that the top surfaces of the front push plate and the rear push plate are flush with the top surface of the clamp fixing plate. 5. The clamp transfer and positioning mechanism of the film tearing machine according to claim 3 is characterized in that a plurality of sets of transverse auxiliary rollers are provided on the left and right inner walls of the front push plate slide groove and the rear push plate slide groove. 6. The clamp transfer and positioning mechanism of the film tearing machine according to claim 2 is characterized in that the end of the front push plate away from the bearing push rod is provided with at least two long first adjustment grooves distributed side by side along the X-axis, and the bottom of the front clamping block is provided with at least two first fixing holes matched with the first adjustment grooves, and the first adjustment grooves and the corresponding first fixing holes cooperate with fixing parts to fix the front clamping block on the front push plate; The end of the rear push plate away from the bearing push rod is provided with at least two second long adjustment grooves distributed side by side along the X-axis, and the bottom of the rear clamping block is provided with at least two second fixing holes matching with the second adjustment grooves, and the second adjustment grooves and the corresponding second fixing holes cooperate with fixing parts to fix the rear clamping block on the rear push plate. 7. The clamp transfer and positioning mechanism of the film tearing machine according to claim 2 is characterized in that a push rod fixing seat is arranged on the clamp fixing plate, and the push rod fixing seat surrounds the bearing push rod, and the top of the bearing push rod away from the clamping cylinder is respectively provided with a first limit guide rod and a second limit guide rod at the position corresponding to the front pushing roller and the rear pushing roller, the first limit guide rod and the second limit guide rod are both perpendicular to the bearing push rod, and the top of the push rod fixing seat is respectively provided with a first guide rod slide groove and a second guide rod slide groove at the position corresponding to the first limit guide rod and the second limit guide rod, the top of the first limit guide rod is located in the first guide rod slide groove and can slide left and right along the first guide rod slide groove, and the top of the second limit guide rod is located in the second guide rod slide groove and can slide left and right along the second guide rod slide groove. 8. The clamp transfer and positioning mechanism of the film tearing machine according to claim 1 is characterized in that a front buffer strip is provided on the side of the front clamping block close to the rear clamping block, a first inclined surface is provided on the side of the front buffer strip close to the rear clamping block, and an angle between the first inclined surface and the bottom surface of the front buffer strip is an obtuse angle; a rear buffer strip is provided on the side of the rear clamping block close to the front clamping block, a second inclined surface is provided on the side of the rear buffer strip close to the front clamping block, and an angle between the second inclined surface and the bottom surface of the rear buffer strip is an obtuse angle. 9. The clamp transfer and positioning mechanism of the film tearing machine according to claim 1, characterized in that a connecting piece fixed to the movable end of the X-axis moving component is provided at the rear end of the clamp fixing plate. 10. The clamp transfer and positioning mechanism of the film tearing machine according to claim 1 is characterized in that an X-axis slider is provided at the rear end of the clamp fixing plate, and an X-axis slide rail slidably connected to the X-axis slider is provided on the X-axis moving component.