CN114833242A

CN114833242A - Punching machine

Info

Publication number: CN114833242A
Application number: CN202210230721.6A
Authority: CN
Inventors: 刘德斌
Original assignee: Suntown Technology Group Co Ltd
Current assignee: Suntown Technology Group Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-02

Abstract

The application relates to the technical field of die plate blanking, and specifically provides a punching machine, including fuselage, guiding mechanism and actuating mechanism that punches a hole, the guiding mechanism that punches a hole sets up in the punching press board of fuselage and connects the drift on the punching press board including sliding, and the drift is used for blanking the die plate. The driving mechanism comprises a driving piece, a first transmission piece and a first pushing piece. The driving part is arranged on the machine body. The first transmission piece is rotatably arranged on the machine body and connected with the driving piece, and the driving piece is used for driving the first transmission piece to rotate. The first pushing and pressing piece is connected with the first transmission piece and the stamping plate, rotates and moves along with the first transmission piece, and drives the stamping plate to slide. The first transmission piece rotates around the first rotating point, the connecting position of the first transmission piece and the driving piece is a driving point, the distance between the driving point and the first rotating point is a first distance, the connecting position of the first transmission piece and the first pushing and pressing piece is a first pushing and pressing point, the distance between the first pushing and pressing point and the first rotating point is a second distance, and the first distance is larger than the second distance.

Description

Punching machine

Technical Field

The application relates to the technical field of template blanking, especially, relate to a piercing press.

Background

The aluminum mold plates are usually punched to form pin holes, so that the pins connect two adjacent aluminum mold plates through the pin holes. The current punching machine is usually driven by a driving member such as an air cylinder to directly push a punch so that the punch punches an aluminum die plate. However, the above-described blanking method has a small blanking force, which makes the blanking process unstable.

Disclosure of Invention

In view of the above, it is desirable to provide a punching machine with strong punching force and stable punching process.

The embodiment of the application provides a punching machine, including fuselage, guiding mechanism and actuating mechanism that punches a hole, the guiding mechanism that punches a hole including slide set up in the punching press board of fuselage and connect in punch on the punching press board, the punch is used for blanking template. The driving mechanism comprises a driving piece, a first transmission piece and a first pushing piece. The driving piece is arranged on the machine body. The first transmission piece is rotatably arranged on the machine body and connected with the driving piece, and the driving piece is used for driving the first transmission piece to rotate. The first pushing and pressing piece is connected with the first transmission piece and the stamping plate, rotates and moves along with the first transmission piece, and drives the stamping plate to slide. The first transmission piece rotates around a first rotating point, the connecting position of the first transmission piece and the driving piece is a driving point, the distance between the driving point and the first rotating point is a first distance, the connecting position of the first transmission piece and the first pushing piece is a first pushing point, the distance between the first pushing point and the first rotating point is a second distance, and the first distance is larger than the second distance.

In the punching machine of the above embodiment, the driving member drives the first transmission member to rotate, and the rotation of the first transmission member drives the first pushing member to move, so as to drive the punching plate, so that the punch on the punching plate can punch the template. Because the first distance is greater than the second distance, the force of the first transmission piece on the first pressing piece is greater than the force of the driving piece on the first transmission piece. Through the setting of driving piece, first transmission piece and first bulldozing piece, enlarge the power of driving piece promptly to increase blanking dynamics, promote blanking stability.

In at least one embodiment, the straight line of the first distance intersects the straight line of the second distance in the same plane.

In the punching machine of the embodiment, the straight line where the first distance and the second distance are located is intersected, the length of the first transmission piece can be reduced during design and production, the space utilization rate can be improved, and the shape of the first transmission piece cannot be long rod-shaped, so that the overall strength is increased. Because the first transmission piece will bear the blanking force of blanking template, the operation stability of first transmission piece can be guaranteed to structural strength high.

In at least one embodiment, the driving mechanism further comprises a second transmission member, a connecting member and a second pushing member. The second transmission piece and the first transmission piece are arranged at intervals and are rotatably arranged on the machine body. The connecting piece is rotationally connected with the first transmission piece and the second transmission piece, and the first transmission piece drives the second transmission piece to synchronously rotate in the same direction through the connecting piece. The second pushing and pressing piece and the first pushing and pressing piece are arranged at intervals and connected with the second transmission piece and the stamping plate, and the second pushing and pressing piece moves along with the second transmission piece to drive the stamping plate to move.

In the punching machine of the above embodiment, the first transmission member rotates to drive the second transmission member to synchronously rotate in the same direction through the connecting member, so that the second pushing member can drive the punching plate to slide. The first pushing piece and the second pushing piece drive the stamping plate, and stability of the sliding process of the stamping plate can be improved.

In at least one embodiment, the connection position of the connecting member and the first transmission member is a first connection point, the distance between the first connection point and the first rotation point is a third distance, and the third distance is greater than the second distance. The connecting position of the connecting piece and the second transmission piece is a second connecting point, the second transmission piece rotates around a second rotating point, the distance between the second connecting point and the second rotating point is a fourth distance, and the third distance is equal to the fourth distance. The connecting position of the second transmission piece and the second pushing piece is a second pushing point, the distance between the second rotating point and the second pushing point is a fifth distance, and the fifth distance is equal to the second distance.

In the punching machine according to the above embodiment, the third distance is greater than the second distance, so that the force applied by the second transmission member to the second pressing member is greater than the force applied by the connecting member to the second transmission member. The third distance is equal to the fourth distance, and the fifth distance is equal to the second distance, so that the second transmission piece can synchronously rotate along with the first transmission piece in the same direction.

In at least one embodiment, the first rotation point, the driving point and the first connection point are located on the same line.

In at least one embodiment, one end of the driving member is rotatably connected to the body, and the other end of the driving member is rotatably connected to the first driving member, and the driving member can extend out to drive the first driving member to rotate.

In the punching machine of the above embodiment, when the driving member extends out, the first transmission member can be pushed to rotate, and the other end of the driving member correspondingly rotates along with the rotation of the first transmission member, so that the driving member and the first transmission member do not interfere with each other.

In at least one embodiment, the punching guide mechanism further comprises a plurality of guide plates, the guide plates are arranged on the machine body and surround the punching plate, and the guide plates are used for guiding the punching plate to slide.

In the piercing press of above-mentioned embodiment, a plurality of deflectors surround the setting of punching press board for the deflector can lead punching press board, and guide structure is simple, and the deflector all is the plane contact with the contact of punching press board, and is low to the machining precision requirement of deflector, simple structure.

In at least one embodiment, the stamping plate comprises a fixing portion and a guide portion, the fixing portion is disposed on the machine body, the guide portion is disposed on the fixing portion and used for guiding the stamping plate to move, and the guide portion is made of high-force brass and graphite.

In the punching machine of the above embodiment, the material of the guide portion includes high-force brass and graphite, and friction between the guide portion and the punching plate can be reduced, so that the die plate can be punched stably.

In at least one embodiment, the stamping machine further comprises a plurality of adjusting pieces, wherein each adjusting piece comprises a first adjusting bolt and a second adjusting bolt, the first adjusting bolt penetrates through the machine body and is in threaded connection with the guide plate, and the second adjusting bolt is in threaded connection with the machine body and abuts against one side, away from the stamping plate, of the guide plate.

In the punching machine of the above embodiment, the position of the guide plate can be adjusted by rotating the first adjusting bolt, and the guide plate can be prevented from moving in the direction away from the punching plate by abutting against the guide plate through the second adjusting bolt, so that the guide plate is kept stable. Because the material of the guide part of deflector includes graphite, long-term the use can produce certain wearing and tearing, adjusts the deflector position through the regulating part and can let the deflector guide punching press board remove steadily all the time.

In at least one embodiment, the stamping plate is provided with a plurality of placing grooves, the placing grooves are arranged at intervals along the direction perpendicular to the sliding direction of the stamping plate, each placing groove is internally provided with a cushion block, the punch head is partially arranged in the placing grooves and abutted against the cushion blocks, and the cushion blocks have different specifications along the dimension of the sliding direction of the stamping plate.

In the punching machine of the above embodiment, since the sizes of the pad blocks have different specifications, the ends of the punches disposed in the placing grooves, which are away from the pad blocks, are not aligned. When blanking the template, the drift of the cushion of connecting different specifications can be blanking the template in proper order to reduce the quantity of the drift of blanking the template simultaneously, and then the blanking power that blanking template needs is lower, and the blanking process is more stable.

The application discloses piercing press passes through actuating mechanism drive punching press board and removes to drive drift blanking template. Through first distance is greater than the second distance, and the third distance is greater than the second distance, can increase the dynamics of blanking template to blanking template steadily.

Drawings

Fig. 1 is a perspective view of a punching machine according to an embodiment of the present application.

Figure 2 is a top view of the punch of figure 1.

Fig. 3 is a top view of the drive mechanism, guide mechanism and a portion of the body of fig. 1.

Fig. 4 is a top view of the drive mechanism, guide mechanism and a portion of the body of the alternative embodiment of fig. 3.

Fig. 5 is a top view of the drive mechanism, guide mechanism and a portion of the body of fig. 3 in yet another embodiment.

Fig. 6 is a perspective view of the crank pin of fig. 3.

Fig. 7 is a perspective view of the drive mechanism, the guide mechanism, and a part of the body in fig. 5.

Fig. 8 is a top view of the punch plate and punch pin of fig. 7.

Fig. 9 is an exploded view of the guide mechanism of fig. 7.

Fig. 10 is a perspective view of a portion of the stamped plate of fig. 8.

Fig. 11 is a perspective view of the body and the guide mechanism at another angle in fig. 7.

Description of the main elements

First surface 423 of punch 100

Second surface 424 of fuselage 10

Third surface 425 of drive mechanism 20

Guide plate 43 of driving member 21

Fixed part 431 of first transmission piece 22

Guide part 432 of first pushing component 23

First lubrication groove 46 of second transmission piece 24

First connecting groove 461 of connecting piece 25

Second pushing component 26 second lubricating groove 47

Second communicating groove 471 of first rotation point 201

Drive point 202 third lubrication groove 48

Third communicating groove 481 of first pushing point 203

First connection point 204 oiling channel 50

Second attachment point 205 first oil hole 51

Second rotation point 206 first oiling part 511

Second push point 207 first communication portion 512

Second oil hole 52 with first distance L1

Second distance L2 second oil filler 521

Third distance L3 second communicating portion 522

Fourth distance L4 third oil filler hole 53

Fifth distance L5 third oiling portion 531

Third communication part 532 of crank pin 30

Adjusting member 70 for pin shaft portion 31

Lubrication passage 311 first adjusting bolt 71

Second adjusting bolt 72 of anti-rotation plate 32

Guide mechanism 40 cushion block 80

Punch 41 first direction X

Second direction Y of the punching plate 42

Third direction Z of the pressed part 421

Placing groove 4211 template 200

Sliding part 422

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

When two elements (planes, lines) are arranged in parallel, it is to be understood that the relationship between the two elements includes both parallel and substantially parallel. By substantially parallel is understood that there may be an included angle between two elements, the included angle being greater than 0 ° and less than or equal to 10 °.

When two elements (planes, lines) are arranged vertically, it is understood that the relationship between the two elements includes both vertical and substantially vertical. Wherein substantially perpendicular is understood to mean that the angle between two elements is greater than or equal to 80 ° and less than 90 °.

When a parameter is greater than, equal to, or less than an endpoint value, it is understood that the endpoint value allows a tolerance of ± 10%, e.g., a is greater than 10, and is understood to include cases where a is greater than 9, as well as cases where a is greater than 11.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Some embodiments of the present application provide a piercing press, including fuselage, guiding mechanism and actuating mechanism that punches a hole, the guiding mechanism that punches a hole including set up with sliding in the punching press board of fuselage and connect in punch on the punching press board, the punch is used for blanking template. The driving mechanism comprises a driving piece, a first transmission piece and a first pushing piece. The driving piece is arranged on the machine body. The first transmission piece is rotatably arranged on the machine body and connected with the driving piece, and the driving piece is used for driving the first transmission piece to rotate. The first pushing and pressing piece is connected with the first transmission piece and the stamping plate, rotates and moves along with the first transmission piece, and drives the stamping plate to slide. The first transmission piece rotates around a first rotating point, the connecting position of the first transmission piece and the driving piece is a driving point, the distance between the driving point and the first rotating point is a first distance, the connecting position of the first transmission piece and the first pushing piece is a first pushing point, the distance between the first pushing point and the first rotating point is a second distance, and the first distance is larger than the second distance.

Some embodiments of the present application will be described below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

In order to more clearly describe the technical solution of the embodiments of the present application, a coordinate system is established in fig. 1 and 2, and the subsequent description about the respective orientations of the punching machine is performed based on the coordinate system. Referring to fig. 1 and 2, the X-axis is a first direction along which the punch plate can slide. The Y axis is a second direction, and the first direction is perpendicular to the second direction in a horizontal plane. The Z-axis is a third direction perpendicular to the plane formed by the first and second directions, and the terms "above", "below", "upward" and "downward" in the description of the present application are relative to the third direction.

Referring to fig. 1 and 2, in some embodiments, a punching machine 100 includes a machine body 10, a driving mechanism 20, and a punch guide mechanism 40, wherein the driving mechanism 20 and the punch guide mechanism 40 are both disposed on the machine body 10, the punch guide mechanism 40 includes a punching plate 42 slidably disposed on the machine body 10, and a plurality of punches 41 disposed on the punching plate 42, and the driving mechanism 20 is configured to drive the punching plate 42 so that the punches 41 on the punching plate 42 punch the die plate 200.

The following description will mainly be made of the structure of the drive mechanism 20 and the connection of the drive mechanism 20. Fig. 1 is a perspective view showing the entire structure of the punch 100, fig. 2 is a plan view of the punch 100 and the die plate 200, and fig. 3 to 5 are plan views of the driving mechanism 20, the guide mechanism 40, and the body 10 in different embodiments.

Referring to fig. 3, the driving mechanism 20 includes a driving member 21, a first transmission member 22 and a first pushing member 23, the driving member 21 is disposed on the machine body 10, the first transmission member 22 is rotatably connected to the machine body 10, and one end of the first transmission member 22 is connected to the driving member 21, the other end of the first transmission member 22 is connected to the first pushing member 23, and the first pushing member 23 is further connected to the stamping plate 42. The first transmission member 22 is driven by the driving member 21 to rotate, so that the first pushing member 23 moves along with the first transmission member 22 and drives the punching plate 42 to slide along the first direction X, so that the punch 41 approaches and punches the die plate 200, or moves away from the die plate 200.

The first transmission member 22 is set to rotate around the first rotation point 201, the connection position between the driving member 21 and the first transmission member 22 is a driving point 202, the connection position between the first transmission member 22 and the first pushing member 23 is a first pushing point 203, the distance between the first rotation point 201 and the driving point 202 is a first distance L1, the distance between the second rotation point 206 and the second connection member 25 is a second distance L2, and the first distance L1 is greater than the second distance L2.

Since the moments of the first transmission member 22 are equal, and the first distance L1 is greater than the second distance L2, the first transmission member 22 can amplify the driving force generated by the driving member 21, i.e., the force of the first transmission member 22 on the first pushing member 23 is greater than the force of the driving member 21 on the first transmission member 22. Therefore, the punching force is large when the punch 41 on the punching plate 42 punches the die plate 200, the punching is more stable, further, a larger number of punches 41 can be provided on the punching plate 42, the punch 41 can stably punch the die plate 200, and the number of times of punching the die plate 200 can be reduced. Specifically, the number of the punches 41 may be 23, and 23 pin holes can be generated by punching the one-time die plate 200, whereas the number of the punches 41 of the general punching machine 100 is only 8.

The connection between the driving member 21 and the body 10 and the connection between the driving member 21 and the first transmission member 22 will be described below.

Referring to fig. 3, in some embodiments, one end of the driving member 21 is rotatably connected to the body 10, and the other end of the driving member 21 is rotatably connected to the first transmission member 22, so that the driving member 22 can be driven to rotate by extending and contracting one end of the driving member 21 close to the first transmission member 22. Optionally, the driving member 21 is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is rotatably connected to the body 10, and a piston rod of the hydraulic cylinder is rotatably connected to the first driving member 22 through a U-shaped joint.

It is understood that the manner of connecting the driving member 21 to the body 10 and the first transmission member 22 is not limited to the rotational connection, and other manners are also possible. For example, one end of the driving member 21 is fixedly connected to the body 10, the other end of the driving member is connected to the first driving member 22 through a guide slot and a guide block, the guide block can slide on the guide slot, the guide block is disposed on the driving member 21 or the body 10, the guide slot is disposed on the other end of the driving member, when the driving member 21 extends or retracts, the guide block moves relative to the guide slot and drives the first driving member 22 to rotate, and similarly, one end of the driving member 21 can be connected to the body 10 through the guide block and the guide slot, and the other end of the driving member is fixedly connected to the first driving member 22.

The positions of the first transmission 22, the driving point 202, the first transmission 22, and the first pressing point 203 will be described below.

The first transmission member 22 is driven by the driving member 21 to rotate around the first rotation point 201, and the first pushing member 23 drives the stamping plate 42 to slide along the first direction X during the rotation of the first transmission member 22. In addition, since the first distance L1 from the driving point 202 of the driving member 21 and the first transmission member 22 to the first rotation point 201 is greater than the second distance L2 from the first pushing point 203 of the first transmission member 22 and the first pushing member 23 to the first rotation point 201, the punching force of the punching plate 42 for punching the die plate 200 is greater, and the punching process is more stable. Optionally, the first distance L1 is 430mm in size and the second distance L2 is 135mm in length.

Referring to fig. 4, in some embodiments, in the same plane, the straight line of the first distance L1 coincides with the straight line of the second distance L2, and the first transmission member 22 is a sheet metal member shaped like a long rod.

Referring to fig. 3, in some embodiments, in the same plane, the straight line of the first distance L1 is perpendicular to the straight line of the second distance L2, and the first transmission member 22 is a sheet metal member with a substantially triangular shape. Compared with the first distance L1 and the second distance L2 being on the same straight line, the length of the first transmission member 22 can be reduced, the space utilization rate can be improved, and the strength of the first transmission member 22 can be improved, so that the first pushing and pressing member 23 can be stably driven to move.

The first pushing member 23 will be described below.

In some embodiments, the first pushing member 23 is rotatably connected to the first transmission member 22 at one end and to the punching plate 42 at the other end. It should be understood that the connection manner of the first pushing member 23, the first transmission member 22 and the punching plate 42 is not limited thereto, and may be other. For example, the first pushing member 23 is fixedly connected with the first transmission member 22, and the first pushing member 23 is connected with the stamping plate 42 through a guide block, a guide groove, and the like. It can be understood that when the first pushing member 23 and the first transmission member 22 are connected through the guide block and the guide groove, the position of the first pushing point 203 is the position of the guide block and is not fixed relative to the first transmission member 22.

Referring to fig. 5, in some embodiments, the driving mechanism 20 further includes a second transmission member 24, a connecting member 25, and a second pushing member 26. The second transmission member 24, the connecting member 25 and the second pushing member 26 will be described below.

The connecting member 25 extends along a second direction Y perpendicular to the first direction X, one end of the connecting member 25 is rotatably connected to the first transmission member 22 at a first connection point 204, and the other end is connected to the second transmission member 24 at a second connection point 205. The first connection point 204 is located at a third distance L3 from the first rotation point 201. Alternatively, the connecting member 25 is a sheet metal member in the shape of a long rod. Optionally, the driving point 202, the first connecting point 204 and the first rotating point 201 are located on the same straight line.

The second transmission member 24 and the first transmission member 22 are spaced apart from each other along the second direction Y, the second transmission member 24 is rotatably connected to the body 10 around a second rotation point 206, the second rotation point 206 is spaced apart from the second connection point 205 by a fourth distance L4, and the third distance L3 is equal to the fourth distance L4 in order to allow the first transmission member 22 and the second transmission member 24 to rotate synchronously in the same direction.

The second pushing element 26 and the first transmission element 22 are disposed at an interval along the second direction Y, one end of the second pushing element 26 is connected to the second transmission element 24, and the connection position is a second pushing point 207, and the other end is connected to the stamping plate 42. In order to ensure that the first pushing element 23 and the second pushing element 26 can move synchronously, the first pushing element 23 and the second pushing element 26 have the same shape, the distance between the second rotating point 206 and the second pushing point 207 is a fifth distance L5, the fifth distance L5 is the same as the second distance L2, and the straight line of the first pushing point 203 and the second pushing point 207 is parallel to the second direction Y.

In some embodiments, third distance L3 is greater than second distance L2 to increase the force exerted by second bias element 26 against punch plate 42. Optionally, the second distance L2 is 135mm and the third distance L3 is 225 mm.

In some embodiments, the second biasing member 26 is coupled to the second transmission member 24 and the punch plate 42 in the same manner as the first biasing member 23 is coupled to the first transmission member 22 and the punch plate 42. That is, when the two ends of the first pushing member 23 are rotatably connected to the first transmission member 22 and the stamping plate 42, respectively, the two ends of the second pushing member 26 are also rotatably connected to the second transmission member 24 and the stamping plate 42, respectively. When the first pushing member 23 is fixedly connected with the first transmission member 22, the second pushing member 26 is also fixedly connected with the second transmission member 24.

Referring to fig. 6, in some embodiments, in order to improve the motion stability of the driving mechanism 20, a crank pin 30 is disposed at each connecting position of the driving mechanism 20. Each connecting position of the driving mechanism 20 specifically includes a position where the driving member 21 is rotatably connected to the body 10, a driving point 202, a first rotating point 201, a first pushing point 203, a position where the first pushing member 23 is connected to the punching plate 42, a first connecting point 204, a second connecting point 205, a second rotating point 206, a second pushing point 207, and a position where the second pushing member 26 is connected to the punching plate 42. The crank pin 30 is fixed to the body 10 and the components of the drive mechanism 20 rotate about the crank pin 30 at corresponding positions. The structure of the crank pin 30 will be described below.

The crank pin 30 may be of unitary construction and may be secured to the fuselage 10 by bolts, welding, or the like. In some embodiments, each crank pin 30 includes a pin portion 31 and a rotation stop plate 32, the pin portion 31 is disposed through the body 10, and each component of the driving mechanism 20 rotates around the pin portion 31 at a corresponding position. The end of the pin shaft 31 is formed with a protrusion structure, the rotation stop plate 32 is detachably fixed on the body 10, and is formed with a groove structure matched with the protrusion structure, and the protrusion structure is arranged in the groove structure to block the pin shaft 31 from rotating. It will be appreciated that the raised structure may also be provided on the anti-rotation plate 32 and the recessed structure provided on the pin shaft portion 31.

In some embodiments, the pin 31 is provided with a lubrication channel 311, and the lubrication channel 311 is a curved channel that respectively penetrates the end and the side wall of the pin 31. Grease is injected from the opening of the lubrication passage 311 at the end of the pin portion 31, and the grease can flow along the lubrication passage 311 into the drive mechanism 20 for lubrication. Optionally, the lubrication channel 311 also extends through a raised structure on the pin portion 31. Optionally, the lubrication channel 311 includes a first hole formed from the end of the pin portion 31 and a second hole formed from the sidewall of the pin portion 31, and the first hole is communicated with the second hole. Optionally, a cutting sleeve joint is disposed at the opening of the lubrication passage 311 at the end of the pin shaft portion 31 for blocking the opening of the lubrication passage 311 to reduce dust contamination of the lubrication passage 311.

The driving mechanism 20 can drive the punching plate 42 to move along the first direction X to punch the die plate 200, and the punching guide mechanism 40 is mainly described below.

Referring to fig. 7, the punching guide mechanism 40 includes a punching plate 42, a plurality of guide plates 43, and a plurality of punches 41, the punching plate 42 includes a punching portion 421 and two sliding portions 422, the plurality of punches 41 are disposed at intervals in the second direction Y on the punching portion 421, and the punching portion 421 is connected to the first pressing member and the second pressing member of the driving mechanism 20, so that the punching portion 421 can slide in the first direction X to drive the punches 41 to punch the stencil 200.

Referring to fig. 8, the punch 41 may be directly fixed to the punching plate 42 to directly punch the die plate 200. In some embodiments, the stamping part 421 has a plurality of positioning slots 4211, the positioning slots 4211 are arranged at intervals along the second direction Y, and each punch 41 is arranged on one positioning slot 4211. A spacer 80 is further provided in the placement groove 4211, and the spacer 80 abuts against the punch 41 to stably set the punch 41 in the placement groove 4211. Optionally, the size of the cushion block 80 in the first direction X has multiple specifications, and the cushion blocks 80 in different specifications are located in different placing grooves 4211, so that one ends of the plurality of punches 41 departing from the cushion blocks 80 are not in the same line, in the blanking process, the punches 41 corresponding to the cushion blocks 80 in different specifications successively blank the die plate 200, and the number of the punches 41 for blanking the die plate 200 is reduced to reduce the blanking force required for blanking, so that the blanking process is more stable. Optionally, there are five dimensional specifications for the spacer 80.

Referring to fig. 8 and 9, two sliding portions 422 are disposed at opposite ends of the stamping portion 421 at intervals along the second direction Y. The peripheral side of each sliding portion 422 has a first surface 423, a second surface 424, and a third surface 425 that meet. The first surface 423 and the third surface 425 are disposed oppositely, and the second surface 424 is between the first surface 423 and the third surface 425 and located on a side away from the stamping portion 421. First surface 423 is provided with first lubrication groove 46, second surface 424 is provided with second lubrication groove 47, third surface 425 is provided with third lubrication groove 48, and first lubrication groove 46, second lubrication groove 47 and third lubrication groove 48 all can deposit grease. The plurality of guide plates 43 are fixed to the body 10 and located on the first surface 423, the second surface 424, and the third surface 425, respectively, so that the grease in the first lubrication groove 46, the second lubrication groove 47, and the third lubrication groove 48 can lubricate the corresponding guide plates 43, thereby reducing the friction between the guide plates 43 and the sliding portion 422. The plurality of guide plates 43 are disposed around the sliding portion 422, so that the plurality of guide plates 43 are matched with each other to guide the stamping plate 42 to move along the first direction X, and limit the position in the second direction Y and the third direction Z.

Alternatively, each sliding portion 422 is provided with three guide plates 43, and each guide plate 43 is provided on one surface of the sliding portion 422. It is to be understood that the number of the guide plates 43 is not limited thereto, and it is also possible that four, five guide plates 43, etc. are provided per sliding portion 422, and one or more guide plates 43 are provided on each surface of the sliding portion 422.

By lubricating the guide plate 43 with the grease in the lubricating groove, friction between the guide plate 43 and the sliding portion 422 can be reduced, and sliding between the guide plate 43 and the sliding portion 422 can be made smoother. And the guide plate 43 is in plane contact with the sliding part 422, and is in curved surface contact with the guide post and the guide sleeve or is simpler in structure compared with a linear sliding table, and the machining precision requirement is lower.

In some embodiments, each of the first lubrication groove 46, the second lubrication groove 47, and the third lubrication groove 48 has a length direction, and the length direction of the lubrication grooves is parallel to the first direction X, i.e., the sliding direction of the sliding portion 422 is parallel to the length direction of the lubrication grooves. So as to increase the area of contact with the grease in the sliding direction of the sliding portion 422, thereby enhancing the lubricating effect. Alternatively, the longitudinal direction of the lubrication groove is not limited to be parallel to the first direction X, and may be inclined with respect to the first direction X or parallel to the second direction Y.

In some embodiments, the first surface 423 further defines a plurality of first connecting grooves 461, the plurality of first connecting grooves 461 are spaced along the first direction X, and the first connecting grooves 461 are communicated with the first lubricating groove 46, grease in the first lubricating groove 46 can flow into the first connecting grooves 461 to increase a contact area between the grease and the guide plate 43 on the first surface 423, so as to reduce friction between the guide plate 43 on the first surface 423 and the sliding portion 422. Compared with increasing the contact area between the grease and the guide plate 43 by increasing the groove width of the first lubrication groove 46, the addition of the first connection groove 461 can not only maintain the overall strength of the sliding portion 422, but also maintain the width direction of the guide plate 43 to be sufficiently in contact with the grease without wasting too much grease. Optionally, the first connecting groove 461 has a length direction, and the length direction of the first connecting groove 461 is parallel to the second direction Y, so that the length direction of the first connecting groove 461 is perpendicular to the length direction of the first lubricating groove 46.

In some embodiments, the second surface 424 defines a plurality of second connecting grooves 471, the third surface 425 defines a plurality of third connecting grooves 481, and the plurality of second connecting grooves 471 and the plurality of third connecting grooves 481 are spaced along the first direction X. The first, second, and third communicating

grooves

461, 471, and 481 are identical in shape and correspond in position.

Referring to fig. 10, in some embodiments, the oil filling channel 50 is formed on the stamping plate 42, the oil filling channel 50 is communicated with the first lubrication groove 46, the second lubrication groove 47 and the third lubrication groove 48, and by filling oil into the oil filling channel 50, the oil can flow into the lubrication grooves, so that the way of adding oil is simple, and the guide plate 43 does not need to be disassembled.

Optionally, the oil filling passage 50 includes a first oil filling hole 51, a second oil filling hole 52 and a third oil filling hole 53, the first oil filling hole 51 is communicated with the first lubrication groove 46, the second oil filling hole 52 is communicated with the second lubrication groove 47, and the third oil filling hole 53 is communicated with the third lubrication groove 48. So that the guide plate 43 at the corresponding position can be lubricated by injecting grease toward different oil injection holes according to actual requirements. Openings for injecting grease are formed in the grease hole in the punch 421 to reduce interference by the guide plate 43 when grease is injected.

Optionally, the first oil filler hole 51 includes a first oil filler part 511 and a first communicating part 512, an opening of one end of the first oil filler part 511 is located on the stamping part 421, and the other end of the first oil filler part 511 is connected to one end of the first communicating part 512. The other end of the first communicating portion 512 communicates with the first lubrication groove 46. By injecting grease toward the opening of the first grease nipple 511, the grease can flow into the first lubrication groove 46 along the first grease nipple 511 and the first communication portion 512.

In some embodiments, the aperture of the first oil injection part 511 is larger than the aperture of the first communication part 512, and the aperture of the first communication part 512 is equal to the groove width of the first lubrication groove 46. The first oil injection part 511 has a large hole diameter, so that the grease can be conveniently injected. Alternatively, the first oil injection part 511 may be a hole with a constant diameter, or may be a tapered hole with a gradually decreasing diameter.

Optionally, the second oil filling hole 52 includes a second oil filling part 521 and a second communicating part 522 communicating with the second oil filling part 521, an opening of the second oil filling part 521 is located on the punched part 421, and one end of the second communicating part 522 away from the second oil filling part 521 is connected to the second lubrication groove 47. The third oil filling hole 53 includes a third oil filling part 531 and a third communicating part 532 communicating with the third oil filling part 531, an opening of the third oil filling part 531 is located on the punched part 421, and one end of the third communicating part 532 away from the third oil filling part 531 is connected with the third lubrication groove 48. By injecting grease into the openings of the different oil injection portions, the grease can flow into the corresponding lubrication grooves to lubricate the guide plate 43, thereby reducing friction between the guide plate 43 and the sliding portion 422.

Referring to fig. 11, the guide plate 43 may be an integral structure and directly contact the sliding portion 422. In some embodiments, the guide plate 43 includes a fixing portion 431 and a guide portion 432, and the guide portion 432 is fixed to a side close to the sliding portion 422. The guide portion 432 is used to contact a surface of the sliding portion 422 to guide the sliding portion 422 to slide in the first direction X. The surface roughness of the guide portion 432 is smaller than that of the fixing portion 431, so that the friction between the guide portion 432 and the sliding portion 422 is small, and the requirement for the machining accuracy of the entire guide plate 43 is not high.

In some embodiments, the guiding portion 432 and the sliding portion 422 are both finely ground to reduce the surface roughness of the two, and reduce the friction between the two.

In some embodiments, the material of the guiding portion 432 includes high-strength brass and graphite, which can effectively reduce the surface roughness of the guiding portion 432, and the material of the sliding portion 422 is a metal alloy. Since the material of the guide portion 432 includes graphite, the sliding portion 422 may rub against the guide portion 432 when moving, so that the graphite is worn. If the material of the guide portion 432 and the sliding portion 422 includes graphite, it is difficult to adjust the positional relationship between the sliding portion 422 and the guide portion 432 at both ends of the punch portion 421 due to wear of both the guide portion 432 and the sliding portion 422 during long-term use, and the guide of the sliding portion 422 by the guide portion 432 is affected. But only the guide part 432 includes graphite, and the position of the worn guide part 432 may be adjusted correspondingly after the guide part 432 is worn, so that the guide part 432 can stably guide the movement of the sliding part 422.

Optionally, the guide portion 432 and the fixing portion 431 are detachably connected through a fastener, so that other guide portions 432 can be replaced after the guide portion 432 is scrapped, the guide plate 43 does not need to be replaced integrally, and cost saving is facilitated. Optionally, the fastener is a bolt.

In some embodiments, the punching machine 100 further includes a plurality of adjusting members 70, and the adjusting members 70 include a first adjusting bolt 71 and a second adjusting bolt 72, and the first adjusting bolt 71 is disposed through the machine body 10 and is threadedly connected to the fixing portion 431 of the guide plate 43. The second adjusting bolt 72 is screwed to the body 10 and abuts against the fixing portion 431. The position between the guide plate 43 and the sliding portion 422 can be adjusted by rotating the first adjusting bolt 71, and the second adjusting bolt 72 abuts against the guide plate 43 to block the guide plate 43 from moving away from the sliding portion 422. Therefore, the position of the guide plate 43 can be adjusted and the position of the guide plate 43 can be kept stable by the first adjusting bolt 71 and the second adjusting bolt 72.

In summary, the embodiment of the present application provides a punching machine 100, wherein the first distance L1 between the driving point 202 and the first rotating point 201 is greater than the distance between the first pushing point 203 and the first rotating point 201, so that the pressure exerted by the first pushing element 23 on the punching plate 42 can be increased. So that the punching pin of the punching plate 42 can stably punch the die plate 200. And the guide plate 43 and the punching plate 42 are lubricated by grease, and the material of the guide plate 43 comprises high-force brass and graphite, so that the friction force between the guide plate 43 and the punching plate 42 is reduced, and the die plate 200 can be punched more easily.

In addition, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present application, and that suitable changes and modifications to the above embodiments are within the scope of the disclosure of the present application as long as they are within the true spirit and scope of the present application.

Claims

1. A punching machine comprises a machine body, a punching guide mechanism and a driving mechanism, and is characterized in that the punching guide mechanism comprises a punching plate which is slidably arranged on the machine body and a punch which is connected to the punching plate, and the punch is used for punching a template; the drive mechanism includes:

the driving piece is arranged on the machine body;

the first transmission piece is rotatably arranged on the machine body and connected with the driving piece, and the driving piece is used for driving the first transmission piece to rotate;

the first pushing and pressing piece is connected with the first transmission piece and the stamping plate, rotates and moves along with the first transmission piece and drives the stamping plate to slide;

the first transmission piece rotates around a first rotating point, the connecting position of the first transmission piece and the driving piece is a driving point, the distance between the driving point and the first rotating point is a first distance, the connecting position of the first transmission piece and the first pushing piece is a first pushing point, the distance between the first pushing point and the first rotating point is a second distance, and the first distance is larger than the second distance.

2. The punching machine of claim 1, wherein a line on which the first distance is located intersects a line on which the second distance is located on the same plane.

3. The punch machine of claim 1 wherein the drive mechanism further comprises:

the second transmission piece is arranged at an interval with the first transmission piece and is rotationally arranged on the machine body;

the connecting piece is rotationally connected with the first transmission piece and the second transmission piece, and the first transmission piece drives the second transmission piece to synchronously rotate in the same direction through the connecting piece;

and the second pushing and pressing piece is arranged at an interval with the first pushing and pressing piece and is connected with the second transmission piece and the stamping plate, and the second pushing and pressing piece moves along with the second transmission piece to drive the stamping plate to move.

4. The punching machine of claim 3, wherein the connection position of the connecting member to the first transmission member is a first connection point, the first connection point is a third distance from the first rotation point, and the third distance is greater than the second distance;

the connecting position of the connecting piece and the second transmission piece is a second connecting point, the second transmission piece rotates around a second rotating point, the distance between the second connecting point and the second rotating point is a fourth distance, and the third distance is equal to the fourth distance;

the connecting position of the second transmission piece and the second pushing piece is a second pushing point, the distance between the second rotating point and the second pushing point is a fifth distance, and the fifth distance is equal to the second distance.

5. The punching machine according to claim 4, wherein said first rotation point, said drive point and said first connection point are located on the same line.

6. The punching machine of claim 1, wherein the driving member is rotatably connected at one end to the machine body and at the other end to the first transmission member, the driving member being extendable to rotate the first transmission member.

7. The punching machine of claim 1, wherein the punch guide mechanism further comprises a plurality of guide plates disposed on the body and around the punch plate, the guide plates for guiding the punch plate to slide.

8. The punch of claim 7, wherein the punch plate includes a fixing portion provided to the body and a guide portion provided to the fixing portion for guiding the punch plate to move, the guide portion being made of high-force brass or graphite.

9. The punching machine of claim 8, further comprising a plurality of adjustment members, wherein the adjustment members include a first adjustment bolt and a second adjustment bolt, the first adjustment bolt is inserted into the machine body and is in threaded connection with the guide plate, and the second adjustment bolt is in threaded connection with the machine body and abuts against one side of the guide plate, which is far away from the punching plate.

10. The punching machine according to claim 1, wherein the punching plate is provided with a plurality of placement grooves, the placement grooves are arranged at intervals along a direction perpendicular to a sliding direction of the punching plate, a cushion block is arranged in each placement groove, the punch head is partially arranged in the placement grooves and abuts against the cushion blocks, and dimensions of the cushion blocks along the sliding direction of the punching plate have different specifications.