CN220162537U - Punching and grinding machine - Google Patents

Abstract

The utility model provides a punching and grinding machine, which comprises a processing platform with a punching area and a grinding area, a punching unit arranged corresponding to the punching area and a grinding unit arranged corresponding to the grinding area, wherein the grinding unit comprises a first driving part and a grinding end connected with the first driving part, the punching unit is used for cutting a workpiece to be machined placed in the punching area, and the first driving part can drive the grinding end to move in the grinding area and grind the workpiece to be machined placed in the grinding area. The punching sander can facilitate cutting and sanding of products, improve product quality and improve production efficiency.

Description

Punching and grinding machine

Technical Field

The utility model relates to the technical field of sealing strip processing, in particular to a punching and grinding machine.

Background

Nowadays, sealing strips are required for doors, windows, front and rear windshields, engine covers, trunk lids and the like of automobiles, and the sealing strips can play roles of water proofing, dust proofing, sound insulation, heat insulation, shock absorption, decoration and the like. But the sealing strip newly processed by the factory is strip-shaped, and when in use, the sealing strip needs to be cut into the length corresponding to the sealing strip according to the use position.

Along with the development of the process diversity of the automobile sealing strip products, the existing part of sealing strip products are cut by a blanking machine and then manually polished, so that the consistency of the products cannot be achieved, the labor is wasted, and the efficiency is low.

Disclosure of Invention

In view of the above, the present utility model aims to provide a die-cut grinder for cutting and grinding products, thereby improving product quality and production efficiency.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a die-cutting polisher, comprising a processing platform with a die-cutting area and a polishing area, a die-cutting unit arranged corresponding to the die-cutting area, and a polishing unit arranged corresponding to the polishing area;

the polishing unit comprises a first driving part and a polishing end connected with the first driving part, the punching unit is used for cutting a workpiece to be processed placed in the punching area, and the first driving part can drive the polishing end to move in the polishing area and polish the workpiece to be processed placed in the polishing area.

Further, the first driving part comprises a first X-direction linear module and a first Y-direction linear module which are horizontally arranged with the polishing area;

the first Y-direction linear module is connected with the output end of the first X-direction linear module, or the first X-direction linear module is connected with the output end of the first Y-direction linear module;

the first X-direction linear module and the first Y-direction linear module are used for driving the polishing end to move in the horizontal direction in the polishing area.

Further, the first driving part further comprises a second X-direction linear module and a second Y-direction linear module which are horizontally arranged with the polishing area;

the second Y-direction linear module is connected with the output end of the second X-direction linear module, or the second X-direction linear module is connected with the output end of the second Y-direction linear module;

the second X-direction linear module and the second Y-direction linear module are used for driving the polishing end to move in the horizontal direction in the polishing area.

Further, the polishing end comprises a plurality of Z-direction linear modules and/or at least one lifting cylinder;

the Z-direction linear module is arranged on the first X-direction linear module or the first Y-direction linear module, and the lifting cylinder is arranged on the second X-direction linear module or the second Y-direction linear module;

the Z-direction linear module and the lifting cylinder are respectively provided with a polishing motor with a polishing head, and the Z-direction linear module and the lifting cylinder can respectively drive the corresponding polishing motors to move along the vertical direction of the polishing area.

Further, the polishing end further comprises a pressing cylinder arranged on the output end of the Z-direction linear module, and a first pressing block connected with the output end of the pressing cylinder, wherein the first pressing block is used for pressing the workpiece to be processed.

Further, the punching unit comprises a first punching tool, second punching tools respectively arranged at two sides of the first punching tool, and a second driving part connected with the second punching tools;

the second driving part is used for driving the second punching tool to be close to or far away from the first punching tool.

Further, the first punching tool and the second punching tool have the same structure;

the first punching tool comprises a bracket, a third driving part arranged on the bracket and a cutter connected with the output end of the third driving part;

the cutter faces to the punching area, and the third driving part is used for driving the cutter to be close to or far away from the workpiece to be processed.

Further, the first punching tool further comprises a second pressing block connected with the output end of the third driving part, and a spring arranged between the third driving part and the second pressing block;

when the third driving part drives the cutter and the second pressing block to be close to the workpiece to be machined, the spring stores energy, and the second pressing block can press the workpiece to be machined to the punching area.

Further, the second driving part comprises a driving motor, and a screw rod and a sliding rail which are arranged corresponding to the second punching tool;

the support of the second punching tool is arranged on the sliding rail in a sliding mode, the driving motor is used for driving the screw rod of the screw rod to rotate, and the support of the second punching tool is connected with the screw nut of the screw rod.

Further, the punching and polishing machine further comprises a dust removing part and a dust collecting pipe communicated with the dust removing part, and one end of the dust collecting pipe is located at the machining platform.

Compared with the prior art, the utility model has the following advantages:

according to the punching and polishing machine, the punching area and the polishing area are integrated on the processing platform, after the punching unit cuts a workpiece to be processed, the workpiece to be processed can be quickly transferred into the polishing area, so that the production efficiency is improved, the first driving part can carry the polishing end to move in the polishing area of the polishing area, any position of the workpiece to be processed can be polished, and the punching and polishing machine can adapt to cuts of different shapes of the workpiece to be processed, so that the polishing quality of the workpiece to be processed is ensured, and the production quality is improved.

In addition, when the polishing motor utilizes the polishing head to polish the workpiece to be processed, the workpiece to be processed can be pressed by the first pressing block, so that the polishing head is convenient to polish, and the polishing quality is improved. The die-cut unit utilizes first die-cut frock and the die-cut frock of second to treat the machined part, places to die-cut region after treating the machined part, and first die-cut frock can be treated the middle part of machined part and cut to two parts to the demand of treating the machined part with satisfying two the same needs of treating, and, the die-cut frock of second can be close to or keep away from first die-cut frock as required, with the not unidimensional machined part of treating of cutting out, can satisfy different demands.

In addition, when the third driving part drives the cutter to cut the workpiece to be machined, the second pressing block is carried to move towards the workpiece to be machined, and the workpiece to be machined is pressed on the punching area to fix the workpiece to be machined, so that the cutter can accurately cut the workpiece to be machined, and the cutting quality of the workpiece to be machined is improved. Through setting up the dust removal portion to through the powder that the dust absorption pipe suction processing platform department polished the motor and polish, reduce the harm of powder to the staff, and keep processing platform's clean.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model, wherein the words of front and back, top and bottom, etc. are used to indicate relative position and are not intended to limit the utility model unduly. In the drawings:

FIG. 1 is a schematic view of a die-cut grinder of the present utility model;

FIG. 2 is a schematic view of the bottom view of the die-cut grinder of the present utility model;

FIG. 3 is a schematic top view of the die-cut grinder of the present utility model;

FIG. 4 is a schematic structural view of a first die-cutting tool and a second die-cutting tool on a processing platform of the die-cutting grinder of the present utility model;

FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

FIGS. 7-9 are schematic views of a portion of the structure of FIG. 4;

FIG. 10 is a schematic view of the structure of a second X-direction linear module and a second Y-direction linear module in a polishing unit of the punching and polishing machine of the present utility model;

FIG. 11 is a schematic view of a portion of the structure of FIG. 10;

fig. 12 is a schematic diagram of a connection structure between a second driving part of the punching and polishing machine and a second punching tool according to the present utility model;

FIG. 13 is a working state diagram of a first die-cutting tool of the die-cutting grinder of the present utility model;

FIG. 14 is a schematic view of a first X-direction linear die set, a first Y-direction linear die set, and a Z-direction linear die set of the die-cut grinder of the present utility model;

FIG. 15 is a schematic view of a second X-direction linear die set, a second Y-direction linear die set and a lifting cylinder of the punching and polishing machine of the present utility model;

reference numerals illustrate:

1. punching areas; 2. polishing the area; 3. a processing platform; 4. a first driving section; 5. a workpiece to be machined; 6. a first X-direction linear module; 7. a first Y-direction linear module; 8. a second X-direction linear module; 9. a second Y-direction linear module; 10. a Z-direction linear module; 11. a lifting cylinder; 12. polishing a motor; 13. a compacting cylinder; 14. a first briquette; 15. a first punching tool; 16. a second punching tool; 17. a second driving section; 18. a bracket; 19. a third driving section; 20. a cutter; 21. a second briquetting; 22. a spring; 23. a driving motor; 24. a screw rod; 25. a slide rail; 26. a dust removing part; 27. perforating; 28. a PLC controller; 29. a frame body; 30. a working hole; 31. an illuminating lamp.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an azimuth or a positional relationship such as "upper", "lower", "inner", "back", etc., are presented, they are based on the azimuth or the positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model; if the terms "first," "second," etc. are used herein, they are used for descriptive purposes only and not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The present embodiment relates to a die-cut grinder capable of facilitating cutting and grinding of a product, improving product quality, and improving production efficiency, an exemplary structure of which is shown in fig. 1 to 15.

As a whole, as shown in fig. 1 to 3, the die-cut grinder includes a processing platform 3 having a die-cut region 1 and a grinding region 2, a die-cut unit provided corresponding to the die-cut region 1, and a grinding unit provided corresponding to the grinding region 2.

The polishing unit comprises a first driving part 4 and a polishing end connected with the first driving part 4, the punching unit is used for cutting a workpiece 5 to be processed placed in the punching area 1, the first driving part 4 can drive the polishing end to move in the X direction, the Y direction and the Z direction in the polishing area 2, and the workpiece 5 to be processed placed in the polishing area 2 is polished, so that different notch shapes of the workpiece 5 to be processed are adapted.

It should be noted that the number of polishing units is preferably two, and the number of polishing areas 2 is correspondingly two.

The to-be-processed member 5 in this embodiment is a sealing strip made of rubber, and of course, the to-be-processed member 5 may be other. The cut includes a cut by the punching unit to the workpiece 5 and a cut of the workpiece 5 cut from the sealing tape in one piece.

Specifically, continuing from fig. 4 to 8, and referring to fig. 14 and 15, as an exemplary structure of the first driving part 4, it includes a first X-direction linear module 6 and a first Y-direction linear module 7 horizontally disposed with the polishing area 2, the first Y-direction linear module 7 being connected with an output end of the first X-direction linear module 6, or the first X-direction linear module 6 being connected with an output end of the first Y-direction linear module 7, the first X-direction linear module 6 and the first Y-direction linear module 7 being configured to drive the polishing end to move in a horizontal direction in the polishing area 2, that is, to drive the polishing end to move in an X-axis direction and a Y-axis direction of the polishing area 2 through the first X-direction linear module 6 and the first Y-direction linear module 7.

In this embodiment, the first driving portion 4 further includes a second X-direction linear module 8 and a second Y-direction linear module 9 horizontally disposed with the polishing area 2, where the second Y-direction linear module 9 is connected to an output end of the second X-direction linear module 8, or the second X-direction linear module 8 is connected to an output end of the second Y-direction linear module 9, and the second X-direction linear module 8 and the second Y-direction linear module 9 are used to drive the polishing end to move in the polishing area 2 along the horizontal direction, that is, the polishing end can be driven to move along the X-axis direction and the Y-axis direction of the polishing area 2 by the second X-direction linear module 8 and the second Y-direction linear module 9

Preferably, in this embodiment, the first Y-direction linear module 7 is fixed on the output end of the first X-direction linear module 6, and the second X-direction linear module 8 is fixed on the output end of the second Y-direction linear module.

In this embodiment, as an exemplary structure of the polishing end, it includes a plurality of Z-direction linear modules 10 and at least one lifting cylinder 11, the Z-direction linear modules are disposed on the first X-direction linear module 6 or the first Y-direction linear module 7, and the lifting cylinder 11 is disposed on the second X-direction linear module 8 or the second Y-direction linear module 9. The number of the Z-direction linear modules 10 is preferably two, and the number of the lifting cylinders 11 is preferably one.

Preferably, the left side Z-direction linear module 10 is fixed on the first X-direction linear module 6, the right side Z-direction linear module 10 is fixed on the first Y-direction linear module 7, the lifting cylinder 11 is fixed on the second X-direction linear module 8, and the polishing motors 12 with polishing heads are fixedly installed on the Z-direction linear module 10 and the lifting cylinder 11, so that the Z-direction linear module 10 and the lifting cylinder 11 can drive the corresponding polishing motors 12 to move along the vertical direction of the polishing area 2, and by combining the above structure, the first driving part 4 can carry the polishing motors 12 to move in the X-axis direction, the Y-axis direction and the Z-axis direction of the space of the polishing area 2, thereby polishing the workpiece 5 by using the polishing heads of the polishing motors 12.

In addition, the polishing end further comprises a pressing cylinder 13 arranged on the output end of the Z-direction linear module 10 and a first pressing block 14 connected with the output end of the pressing cylinder 13, wherein the first pressing block 14 is used for pressing the workpiece 5 to be polished, when the Z-direction linear module 10 carries the polishing motor 12 to polish the workpiece 5, the pressing cylinder 13 drives the first pressing block 14 to the workpiece 5 to be polished, and the workpiece 5 to be polished is pressed on the polishing area 2, so that the workpiece 5 to be polished is facilitated.

It should be noted that, when the Z-direction linear module 10 mounted with the first pressing block 14 carries the polishing motor 12 to polish the workpiece 5, when the Z-direction linear module 10 needs to move, the first pressing block 14 is driven by the pressing cylinder 13 to separate the first pressing block 14 from the workpiece 5, so as to avoid friction between the first pressing block 14 and the workpiece 5 to wear the workpiece 5.

In this embodiment, as shown in fig. 4, 9 and 12, an exemplary structure of the die-cutting unit includes a first die-cutting tool 15, a second die-cutting tool 16 disposed on two sides of the first die-cutting tool 15, and a second driving portion 17 connected to the second die-cutting tool 16, where the second driving portion 17 is used to drive the second die-cutting tool 16 to approach or separate from the first die-cutting tool 15, after the second die-cutting tool 16 moves toward the first die-cutting tool 15, the distance from the second die-cutting tool 16 to the first die-cutting tool 15 can determine the length of the workpiece 5 to be cut into two parts with the same length after the workpiece 5 is cut by the first die-cutting tool 15, so as to obtain the workpiece 5 with different lengths according to requirements, and the first die-cutting tool 15 divides the workpiece 5 into two parts with the same length because the same two sealing strips are required to be sealed at the window or other positions of the vehicle.

Wherein, the first die-cut frock 15 and the structure of second die-cut frock 16 are the same.

In this embodiment, as shown in fig. 13, as an exemplary structure of the first punching tool 15, it includes a bracket 18, a third driving portion 19 provided on the bracket 18, and a cutter 20 connected to an output end of the third driving portion 19. Wherein the cutter 20 faces the punching area 1, and the third driving portion 19 is used for driving the cutter 20 to approach or depart from the workpiece 5, so that the cutter 20 is used for cutting the workpiece 5 and is separated from the workpiece 5 after cutting. The third driving part 19 is preferably an electric push rod, an air cylinder or a linear module.

In addition, the first punching tool 15 further includes a second pressing block 21 connected to the output end of the third driving portion 19, and a spring 22 disposed between the third driving portion 19 and the second pressing block 21. When the third driving part 19 drives the cutter 20 and the second pressing block 21 to approach the workpiece 5, the spring 22 stores energy, and the second pressing block 21 can press the workpiece 5 to the punching area 1 through the elastic force of the spring 22.

Wherein, the middle part of the second pressing block 21 is provided with a perforation 27, which can be used for the cutter 20 to pass through to cut the workpiece 5 to be processed, so that the pressing effect of the second pressing block 21 on the workpiece 5 to be processed can be improved.

In this embodiment, as an exemplary structure of the second driving portion 17, as shown in fig. 12, it includes a driving motor 23, and a screw 24 and a slide rail 25 corresponding to the second punching tool 16, where the bracket 18 of the second punching tool 16 is slidably disposed on the slide rail 25, and the driving motor 23 is used to drive the screw 24 of the screw 24 to rotate, and the bracket 18 of the second punching tool 16 is connected with a nut of the screw 24.

In this embodiment, die-cut polisher includes dust removal portion 26 to and with the dust absorption pipe of dust removal portion 26 intercommunication, the one end of dust absorption pipe is located processing platform 3 departments, and the other end communicates with the induction port of dust removal portion 26, can clear up the fragment of processing platform 3 department cutting and the powder of polishing, can guarantee the cleanness of processing platform 3 departments, can also avoid the staff to inhale the powder, avoid the harm to the staff, dust removal portion 26 adopt conventional machine that has the negative pressure can.

In addition, the punching and polishing machine of this embodiment further includes a frame 29, all the above components are mounted on the frame 29, the processing platform 3 is formed on the frame 29, and a working hole 30 is further formed in the frame 29, so that the polishing motor 12 on the lifting cylinder 11 passes through the working hole 30 to reach the workpiece 5 to be processed, and an illumination hole is formed below the first punching tool 15, an illumination lamp 31 is mounted in the illumination hole, and the first punching tool 15 and the second punching tool 16 illuminate when cutting the workpiece 5 to be processed.

In addition, in this embodiment, a PLC controller 28 may be further provided, and the first X-direction linear module 6, the first Y-direction linear module 7, the second X-direction linear module 8, the second Y-direction linear module 9, the Z-direction linear module 10, the lifting cylinder 11, the pressing cylinder 13, the third driving portion 19, and the driving motor 23 may be all connected to the PLC controller 28 in a signal manner.

The working process of the punching and polishing machine of this embodiment is as follows:

firstly, the shape of the workpiece 5 to be machined is cut out from a whole sealing strip through other conventional technical means, the workpiece 5 to be machined is placed in the punching area 1, at the moment, the workpiece 5 to be machined is basically located below a cutter 20 of the first punching tool 15, a driving motor 23 is started again, a screw rod of a screw rod 24 is driven to rotate by the driving motor 23, and accordingly a second punching tool 16 is carried by a screw nut of the screw rod 24 to slide between sliding rails 25, so that the second punching tools 16 on two sides of the first punching tool 15 are close to or far from the first punching tool 15, and the length of the workpiece 5 to be machined is determined according to requirements.

Then, the third driving part 19 of the second punching tool 16 drives the cutter 20 and the second pressing block 21 to approach the workpiece 5, when the second pressing block 21 and the cutter 20 approach the workpiece 5, the second pressing block 21 is firstly contacted with the workpiece 5, the spring 22 is enabled to store energy, the workpiece 5 is pressed in the punching area 1 under the elasticity of the spring 22, and then the cutter 20 is used for cutting the workpiece 5. Then, the third driving part 19 of the first punching tool 15 drives the cutter 20 and the second pressing block 21 to approach the workpiece 5, and the second pressing block 21 presses the workpiece 5, and the cutter 20 divides the workpiece 5 into two parts with the same length or different lengths of the workpiece 5.

After the workpiece 5 has been cut, the workpiece 5 is transferred to the grinding zone 2. First, the first X-direction linear module 6 and the first Y-direction linear module 7 are started, and the first X-direction linear module 6 and the first Y-direction linear module 7 carry the briquetting cylinder 13 and the briquetting 14 to adjust in the X-axis direction and the Y-axis direction in the polishing area 2, so that the briquetting 14 is opposite to the material notch. And then the Z-axis direction of the pressing block 14 in the polishing area 2 is adjusted through the Z-direction linear module 10 and the pressing block cylinder 13, so that materials are pressed. The second X-direction linear module 8 and the second Y-direction linear module 9 are started, and the lifting cylinder 11 is carried by the second X-direction linear module and the second Y-direction linear module 9 to adjust in the X-axis direction and the Y-axis direction in the polishing area 2, so that the polishing motor 12 on the lifting cylinder 11 is adjusted. The grinding motor 12 is adjusted in the Z-axis direction of the grinding area 2 through the lifting cylinder 11, and the grinding head of the grinding motor 12 passes through the working hole 30 on the frame 29 to be close to the workpiece 5, so that each position of the workpiece 5 is ground. At this time, the first punching tool 15 and the second punching tool 16 cut the cut of the workpiece 5 to be processed, that is, the cut on both sides of the sealing strip in the length direction.

After the cuts on the two sides of the workpiece 5 are polished, the first X-direction linear module 6 and the first Y-direction linear module 7 are started, and the X-axis direction and the Y-axis direction of the Z-direction linear module 10 in the polishing area 2 are adjusted by the first X-direction linear module 6 and the first Y-direction linear module 7, so that the polishing head of the polishing motor 12 is adjusted. And the Z-axis direction of the polishing motor 12 in the polishing area 2 is adjusted through the Z-direction linear module 10, so that each position of the workpiece 5 to be polished.

Of course, the first X-direction linear module 6, the first Y-direction linear module 7, the second X-direction linear module 8, the second Y-direction linear module 9, the Z-direction linear module 10, the lifting cylinder 11, the pressing cylinder 13, the third driving part 19 and the driving motor 23 are all in signal connection with the PLC controller 28, and are controlled by the PLC controller 28 to complete punching and polishing work of the workpiece 5, and parameters of each component can be regulated to adjust polishing speed, polishing angle and polishing rotational speed of the polishing motor 12 so as to adapt to different products.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A die-cut polisher, characterized in that:

the polishing device comprises a processing platform (3) with a punching area (1) and a polishing area (2), a punching unit arranged corresponding to the punching area (1) and a polishing unit arranged corresponding to the polishing area (2);

the polishing unit comprises a first driving part (4) and a polishing end connected with the first driving part (4), the punching unit is used for cutting a workpiece (5) to be processed placed in the punching area (1), and the first driving part (4) can drive the polishing end to move in the polishing area (2) and polish the workpiece (5) to be processed placed in the polishing area (2).

2. The die cut sander as set forth in claim 1, wherein:

the first driving part (4) comprises a first X-direction linear module (6) and a first Y-direction linear module (7) which are horizontally arranged with the polishing area (2);

the first Y-direction linear module (7) is connected with the output end of the first X-direction linear module (6), or the first X-direction linear module (6) is connected with the output end of the first Y-direction linear module (7);

the first X-direction linear module (6) and the first Y-direction linear module (7) are used for driving the polishing end to move in the horizontal direction in the polishing area (2).

3. The die cut sander as set forth in claim 2, wherein:

the first driving part (4) further comprises a second X-direction linear module (8) and a second Y-direction linear module (9) which are horizontally arranged with the polishing area (2);

the second Y-direction linear module (9) is connected with the output end of the second X-direction linear module (8), or the second X-direction linear module (8) is connected with the output end of the second Y-direction linear module (9);

the second X-direction linear module (8) and the second Y-direction linear module (9) are used for driving the polishing end to move in the horizontal direction in the polishing area (2).

4. A die cut sander as set forth in claim 3, wherein:

the polishing end comprises a plurality of Z-direction linear modules (10) and/or at least one lifting cylinder (11);

the Z-direction linear module is arranged on the first X-direction linear module (6) or the first Y-direction linear module (7), and the lifting cylinder (11) is arranged on the second X-direction linear module (8) or the second Y-direction linear module (9);

the Z-direction linear module (10) and the lifting cylinder (11) are respectively provided with a polishing motor (12) with a polishing head, and the Z-direction linear module (10) and the lifting cylinder (11) can respectively drive the corresponding polishing motors (12) to move along the vertical direction of the polishing area (2).

5. The die cut sander as set forth in claim 4, wherein:

the polishing end further comprises a pressing cylinder (13) arranged at the output end of one Z-direction linear module (10), and a first pressing block (14) connected with the output end of the pressing cylinder (13), wherein the first pressing block (14) is used for pressing the workpiece (5) to be processed.

6. The die cut sander as set forth in any one of claims 1-5, wherein:

the punching unit comprises a first punching tool (15), second punching tools (16) respectively arranged at two sides of the first punching tool (15), and a second driving part (17) connected with the second punching tools (16);

the second driving part (17) is used for driving the second punching tool (16) to be close to or far away from the first punching tool (15).

7. The die cut sander as set forth in claim 6, wherein:

the first punching tool (15) and the second punching tool (16) have the same structure;

the first punching tool (15) comprises a bracket (18), a third driving part (19) arranged on the bracket (18) and a cutter (20) connected with the output end of the third driving part (19);

the cutter (20) faces the punching area (1), and the third driving part (19) is used for driving the cutter (20) to be close to or far away from the workpiece (5).

8. The die cut sander as set forth in claim 7, wherein:

the first punching tool (15) further comprises a second pressing block (21) connected with the output end of the third driving part (19), and a spring (22) arranged between the third driving part (19) and the second pressing block (21);

when the third driving part (19) drives the cutter (20) and the second pressing block (21) to be close to the workpiece (5), the spring (22) stores energy, and the second pressing block (21) can press the workpiece (5) to be pressed against the punching area (1).

9. The die cut sander as set forth in claim 7, wherein:

the second driving part (17) comprises a driving motor (23), and a lead screw (24) and a sliding rail (25) which are arranged corresponding to the second punching tool (16);

the bracket (18) of the second punching tool (16) is arranged on the sliding rail (25) in a sliding mode, the driving motor (23) is used for driving the screw rod of the screw rod (24) to rotate, and the bracket (18) of the second punching tool (16) is connected with the screw nut of the screw rod (24).

10. The die cut sander as set forth in any one of claims 8 or 9, wherein:

the punching and grinding machine further comprises a dust removing part (26) and a dust suction pipe communicated with the dust removing part (26), and one end of the dust suction pipe is located at the machining platform (3).