Metal plate punching device

Abstract

The utility model belongs to the technical field of metal component machining, and particularly relates to a metal plate punching device which comprises a machine body, a punching mechanism and a punching mechanism. The punching driving part comprises a driving cylinder arranged on the rack; the workbench is arranged on the machine body and located below the punching driving piece. The workpiece clamping mechanism comprises a plurality of clamping pieces which are uniformly distributed in the circumferential direction of the charcoal workbench at intervals; the punch is connected with the driving end of the driving cylinder through a damping connecting part; wherein the puncher pin can be driven by the driving cylinder to ascend and descend, the clamping piece can clamp the side edge of the workpiece, and compared with the prior art, the service life of the puncher pin is prolonged, and the punching effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of metal component processing technology, and in particular relates to a metal sheet punching device. Background Technology

[0002] A sheet metal punching device is a mechanical device used for punching holes in metal sheets. It is widely used in metal processing, automobile manufacturing, construction, home appliances and other industries. Its main function is to process holes of various shapes and sizes in metal sheets through molds and pressure systems to meet product design requirements. For example, a sheet metal punching device disclosed in patent application number CN202122461696.6 belongs to the technical field of sheet metal processing equipment. This sheet metal punching device includes a worktable, a base fixedly connected to the upper end of the worktable, a punching base plate fixedly connected to the upper end of the base, a punching device fixedly connected to the upper end of the base, and a dual-axis motor fixedly connected to the upper end of the base; as well as two sets of clamping mechanisms. Each clamping mechanism includes a lead screw, a nut, two support blocks, two bevel gears and a limiting component. The two support blocks are fixedly connected to the upper end of the base, and the two ends of the lead screw movably pass through the two ends of the two support blocks and extend outward.

[0003] The existing metal sheet punching device has poor shock resistance during use. During long-term punching operations, vibration can easily lead to accelerated wear, punch deformation and breakage, reducing the service life of the punch. At the same time, vibration can also affect the punching accuracy and reduce the punching effect. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a metal sheet punching device to improve the service life of the punch and the punching effect.

[0005] In view of this, the present invention provides a metal sheet punching device, comprising:

[0006] The body, on which a frame is provided;

[0007] A punching drive component, the punching drive component including a drive cylinder mounted on a frame;

[0008] A worktable is mounted on the machine body and located below the punching drive component;

[0009] Also includes:

[0010] A workpiece clamping mechanism, comprising a plurality of clamping components evenly spaced around the circumference of the carbon worktable;

[0011] A punch, which is connected to the drive end of the drive cylinder via a shock-absorbing connection.

[0012] The punch can be raised and lowered by the drive cylinder, and the clamping member can clamp the side of the workpiece.

[0013] In this technical solution, during the punching process, the metal sheet is placed on the worktable, and then the edges of the metal sheet are clamped and fixed to the worktable by several clamping components. The drive cylinder is activated, which drives the punch to move downward and punch the metal sheet. The punch is connected to the drive end of the drive cylinder through a shock-absorbing connection, so that the vibration generated by the punch during punching can be effectively weakened, reducing phenomena such as accelerated wear, punch deformation and breakage caused by vibration, improving the service life of the punch, reducing the impact of vibration on punching accuracy, and improving the punching effect.

[0014] In the above technical solution, the shock-absorbing connection further includes:

[0015] A connecting block, wherein an inner cavity is formed inside the connecting block, and a hole communicating with the inner cavity is formed on the side wall of the connecting block;

[0016] A cover, which is detachably disposed in the hole;

[0017] The granular filler is disposed in the inner cavity and the filling degree of the granular filler is 90-95%.

[0018] The top of the connecting block is connected to the drive end of the drive cylinder, and the bottom is connected to the punch.

[0019] Furthermore, the above technical solution also includes:

[0020] A slider, which is movably mounted on the frame;

[0021] A lead screw, which is rotatably mounted on the frame and distributed along the length of the machine body;

[0022] A drive motor is mounted on the side of the frame and connected to a lead screw drive.

[0023] The slider is connected to the lead screw via a lead screw nut, and can move along the length of the machine body under the drive of the lead screw. The drive cylinder is mounted on the slider and can move in response to the movement of the slider.

[0024] In the above technical solution, the clamping member further includes:

[0025] A base is disposed on the surface of the machine body, and a clamping cylinder is disposed on the base;

[0026] A clamping plate, which is detachably mounted on the drive end of the clamping cylinder.

[0027] Furthermore, the above technical solution also includes:

[0028] The insertion hole is located at the driving end of the clamping cylinder and is coaxially distributed with the driving end of the clamping cylinder. A keyway is provided on the inner wall of the insertion hole.

[0029] Insert post, which is set on the side wall of the clamping plate and can be matched with the insertion hole, and a connecting key is provided on the outer wall of the insert post;

[0030] The clamping block is movably mounted on the drive end of the clamping cylinder and can move radially along the drive end of the clamping cylinder. The bottom end of the clamping block is located in the keyway and has a first clamping tooth. The top end of the clamping block is located outside the drive end of the clamping cylinder and has a pawl.

[0031] The second locking tooth is located on the connecting key and can engage with the first locking tooth.

[0032] The beneficial effects of this utility model are:

[0033] 1. The vibration damping connection can effectively reduce the vibration generated by the punch during punching, reduce the phenomenon of accelerated wear, punch deformation and breakage caused by vibration, improve the service life of the punch, reduce the impact of vibration on punching accuracy, and improve the punching effect.

[0034] 2. The slider and lead screw facilitate the adjustment of the drive cylinder position, which in turn facilitates the adjustment of the punching position, further improving the practicality of the metal sheet punching device;

[0035] 3. The design of the insertion holes and posts facilitates the replacement of the clamping plates, thereby adapting to the clamping of different workpieces by changing the clamping plates of different specifications and shapes, further improving the practicality of the metal sheet punching device. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0038] Figure 2 This is a top view structural diagram of the present invention.

[0039] Figure 3This is a schematic diagram of the connecting block structure of this utility model.

[0040] Figure 4 This is a schematic cross-sectional view of the connecting block of this utility model.

[0041] Figure 5 This is a schematic diagram of the socket structure of this utility model.

[0042] The markings in the diagram are as follows:

[0043] 1. Machine body; 2. Frame; 3. Drive cylinder; 4. Worktable; 5. Clamping component; 50. Base; 52. Clamping cylinder; 53. Clamping plate; 54. Insertion hole; 55. Keyway; 56. Insertion post; 57. Connecting key; 58. Locking block; 59. First locking tooth; 510. Slot; 511. Second locking tooth; 6. Punch; 7. Shock-absorbing connection part; 70. Connecting block; 71. Inner cavity; 72. Hole; 73. Cover; 74. Particle filler; 8. Slider; 9. Lead screw; 10. Drive motor; Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0046] Example 1:

[0047] This application provides a metal sheet punching device, including: a body 1, a frame 2 mounted on the body 1; a punching drive component, including a drive cylinder 3 mounted on the frame 2; and a worktable 4, mounted on the body 1 and located below the punching drive component.

[0048] It also includes: a workpiece clamping mechanism, which includes a number of clamping parts 5 evenly spaced around the carbon worktable 4; and a punch 6, which is connected to the drive end of the drive cylinder 3 through a shock-absorbing connection part 7.

[0049] The punch 6 can move up and down under the drive of the drive cylinder 3, and the clamping part 5 can clamp the side of the workpiece.

[0050] Furthermore, the machine body 1 is equipped with a conventional control unit such as a PLC control unit, the frame 2 can be a conventional frame structure such as a gantry structure, the drive cylinder 3 can be a conventional hydraulic drive cylinder 3, the drive cylinder 3 can be controlled by the control unit, the worktable 4 is a conventional structure, and a waste hole 72 can be opened at the center of the worktable 4 to discharge the waste generated during the punching operation.

[0051] In this embodiment, during the punching process, the metal sheet is placed on the worktable 4, and then the edges of the metal sheet are clamped by several clamping parts 5 to fix it on the worktable 4. The drive cylinder 3 is activated, and the drive cylinder 3 drives the punch 6 to move downward and punch the metal sheet. The punch 6 is connected to the drive end of the drive cylinder 3 through the shock-absorbing connection part 7, so that the vibration generated by the punch 6 during punching can be effectively weakened, reducing the phenomenon of accelerated wear, deformation and breakage of the punch 6 caused by vibration, improving the service life of the punch 6, reducing the impact of vibration on the punching accuracy, and improving the punching effect.

[0052] Example 2:

[0053] This embodiment provides a metal sheet punching device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the shock-absorbing connecting part 7 further includes: a connecting block 70, the connecting block 70 having an inner cavity 71, and a hole 72 communicating with the inner cavity 71 on the side wall of the connecting block 70; a cover 73, the cover 73 being detachably disposed in the hole 72; and a granular filler 74, the granular filler 74 being filled in the inner cavity 71 with a filling degree of 90-95%.

[0054] The top of the connecting block 70 is connected to the drive end of the drive cylinder 3, and the bottom is connected to the punch 6.

[0055] Furthermore, the particle filler 74 is preferably wear-resistant metal particles, the inner wall of the hole 72 may be provided with internal threads, the cover 73 may be provided with external threads that mate with the internal threads, and the cover 73 may be detachably installed in the hole 72 through thread engagement.

[0056] In this embodiment, during the punching process of the metal sheet, when the punch 6 impacts the surface of the metal sheet, the impact vibration is transmitted through the punch 6 to the connecting block 70 of the shock-absorbing connection part 7. The particle filler 74 in the inner cavity 71 is also affected by the impact vibration. Under the action of inertia, the particle filler 74 can exert a force in the opposite direction to the impact vibration, thereby effectively weakening the impact vibration. At the same time, the particle filler 74 converts the force generated by the impact vibration into heat energy through mutual collision and friction, further weakening the impact vibration. Compared with the prior art, this utility model can effectively weaken the impact vibration on the punch 6 and the entire punching structure, reduce the phenomenon of accelerated wear, deformation and breakage of the punch 6 caused by vibration, improve the service life of the punch 6, reduce the impact of vibration on the punching accuracy, and improve the punching effect.

[0057] Example 3:

[0058] This embodiment provides a metal sheet punching device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including: a slider 8, which is movably mounted on the frame 2; a lead screw 9, which is rotatably mounted on the frame 2 and distributed along the length of the machine body 1; and a drive motor 10, which is mounted on the side of the frame 2 and is connected to the lead screw 9 for transmission.

[0059] The slider 8 is connected to the lead screw 9 via a nut. The slider 8 can move along the length of the machine body 1 under the drive of the lead screw 9. The drive cylinder 3 is set on the slider 8 and can move to move the slider 8.

[0060] Moreover, the slider 8 can be installed on the frame 2 in a conventional way, such as the frame 2 having vertical grooves distributed along the length of the body 1 on the crossbeam, the slider 8 being slidably installed in the vertical grooves, the front and rear sides of the vertical grooves having horizontal grooves distributed along the length of the body 1, the front and rear side walls of the slider 8 having guide blocks that cooperate with the horizontal grooves, wherein the horizontal groove located on the front side extends through the frame 2 to the outside of the frame 2 and is equipped with a mounting platform, and the drive cylinder 3 is installed on the mounting platform.

[0061] In this embodiment, during the punching process of the metal sheet, the drive motor 10 drives the lead screw 9 to rotate, and the slider 8 is connected to the lead screw 9 through the nut of the lead screw 9 to convert the rotation into linear movement. As the slider 8 moves, the drive cylinder 3 moves synchronously, thereby changing the position of the punch 6, and finally meeting the punching requirements of different positions, thus improving the practicality of the metal sheet punching device.

[0062] Example 4:

[0063] This embodiment provides a metal sheet punching device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the clamping member 5 further includes: a base 50, which is disposed on the surface of the machine body 1, and a clamping cylinder 52 is disposed on the base 50; and a clamping plate 53, which is detachably disposed on the driving end of the clamping cylinder 52.

[0064] It also includes: a socket 54, which is located on the driving end of the clamping cylinder 52 and coaxially distributed with the driving end of the clamping cylinder 52, and a keyway 55 is provided on the inner wall of the socket 54; a pin 56, which is located on the side wall of the clamping plate 53 and can cooperate with the socket 54, and a connecting key 57 is provided on the outer wall of the pin 56; a locking block 58, which is movably located on the driving end of the clamping cylinder 52 and can move radially along the driving end of the clamping cylinder 52, the bottom end of the locking block 58 is located in the keyway 55 and the bottom end of the locking block 58 has a first locking tooth 59, the top end of the locking block 58 is located outside the driving end of the clamping cylinder 52 and has a groove 510; and a second locking tooth 511, which is located on the connecting key 57 and can engage with the first locking tooth 59.

[0065] Furthermore, both the keyway 55 and the connecting key 57 can have two and are radially symmetrically distributed along the driving end of the clamping cylinder 52. One of the keyways 55 has a movable hole that extends through to the surface of the driving end of the clamping cylinder 52 on its inner wall. The locking block 58 is movably installed in the movable hole. The side walls on both sides of the locking block 58 have guide blocks. The inner wall of the movable hole has a guide groove that cooperates with the guide block. A spring is also installed in the guide groove. One end of the spring is connected to the guide block, and the other end is connected to the inner wall of the guide groove.

[0066] In this embodiment, during the punching process of the metal sheet, the clamping cylinder 52 is activated, which drives the clamping plate 53 to approach the edge of the metal sheet, thereby clamping the metal sheet and fixing it on the worktable 4. When processing metal sheets of different specifications and shapes, the clamping block 58 can be lifted by the pull groove on the clamping block 58, thereby releasing the engagement of the first clamping tooth 59 and the second clamping tooth 511. Then, the insert post 56 is pulled out to remove the clamping plate 53 and replace it with a clamping plate 53 of different specifications and shapes. The insert post 56 on the new clamping plate 53 is inserted into the insertion hole 54 again. After the insert post 56 is inserted into the insertion hole 54, the first clamping tooth 59 and the second clamping tooth 511 engage to fix the clamping plate 53 axially. The keyway 55 engages with the connecting key 57 to fix the clamping plate 53 circumferentially. Compared with the prior art, this utility model facilitates the replacement of the clamping plate 53, thereby adapting to the clamping of different workpieces by replacing the clamping plate 53 of different specifications and shapes, and further improving the practicality of the metal sheet punching device.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A metal plate punching device, comprising: a machine body (1) provided with a rack (2); a punching driving element comprising a driving cylinder (3) provided on the rack (2); a workbench (4) provided on the machine body (1) below the punching driving element; characterized in that it further comprises: a workpiece clamping mechanism comprising a plurality of clamping elements (5) uniformly and evenly distributed in the circumference of the carbon workbench (4); a punch (6) connected with the driving end of the driving cylinder (3) through a damping connecting part (7); wherein the punch (6) can move up and down under the driving of the driving cylinder (3), and the clamping element (5) can clamp the side edge of the workpiece.

2. The metal sheet punching device according to claim 1, characterized in that The damping connecting part (7) further comprises: a connecting block (70) with an inner cavity (71) formed in the inside thereof, and a hole (72) formed in the side wall of the connecting block (70) and communicating with the inner cavity (71); a cover body (73) detachably arranged in the hole (72); a granular filler (74) filled in the inner cavity (71) and having a filling degree of 90-95%; wherein the top of the connecting block (70) is connected with the driving end of the driving cylinder (3), and the bottom is connected with the punch (6).

3. A metal sheet piercing apparatus according to claim 2, wherein Further comprising: a sliding block (8) movably arranged on the rack (2); a lead screw (9) rotatably arranged on the rack (2) and distributed along the length direction of the machine body (1); a driving motor (10) arranged on the side surface of the rack (2) and in transmission connection with the lead screw (9); wherein the sliding block (8) is in transmission connection with the lead screw (9) through a lead screw nut, and can move along the length direction of the machine body (1) under the driving of the lead screw (9), and the driving cylinder (3) is arranged on the sliding block (8) and can move with the movement of the sliding block (8).

4. The metal sheet punching device according to claim 1, wherein The clamping element (5) further comprises: a base (50) arranged on the surface of the machine body (1), and provided with a clamping cylinder (52); a clamping plate (53) detachably arranged on the driving end of the clamping cylinder (52).

5. A metal sheet piercing apparatus according to claim 4, wherein Further comprising: a socket (54) arranged on the driving end of the clamping cylinder (52) and coaxially distributed with the driving end of the clamping cylinder (52), and provided with a key groove (55) on the inner wall thereof; a plug column (56) arranged on the side wall of the clamping plate (53) and cooperable with the socket (54), and provided with a connecting key (57) on the outer wall thereof; a clamping block (58) movably arranged on the driving end of the clamping cylinder (52) and movable along the radial direction of the driving end of the clamping cylinder (52), and having a first clamping tooth (59) at the bottom end thereof, and a top end located outside the driving end of the clamping cylinder (52) and having a shifting groove (510). A second tooth (511) is provided on the connecting key (57) and the second tooth (511) can be engaged with the first tooth (59).

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