Punching head for punching machine

Abstract

The utility model discloses a punching head for a punching machine, which belongs to the technical field of punching equipment and comprises a punching machine and two punching heads for punching, and a switching structure for switching the two punching heads is arranged on the punching machine and the two punching heads. The switching structure comprises a positioning structure used for connecting the two punching heads and a driving structure used for driving the two punching heads to rotate, and the positioning structure comprises a fixing disc arranged on the punching machine. According to the punching device, when one punching head is seriously abraded after being used for a long time, the motor can be started to drive the mounting frame to rotate, the mounting frame can drive the two punching heads to do circular motion when rotating, the positions of a new punching head and the abraded punching head are exchanged, and rapid switching of the two punching heads is achieved; in the switching process, the punching machine does not need to be shut down, the production interruption time is shortened, the punching machine can work continuously, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping equipment, in particular to a stamping head for a stamping machine. Background Art

[0002] Stamping machines, also known as punch presses, are mainly used for processing sheet metal parts.

[0003] In the prior art, Chinese Patent Publication No. CN220942794U discloses a replaceable die punch head, comprising a punch head body and an upper die, wherein the bottom of the upper die is provided with a replacement structure, wherein the replacement structure comprises a connecting block, wherein the connecting block is fixedly connected to the top of the punch head body, the bottom of the upper die is fixedly connected to a threaded block, the bottom of the threaded block is provided with a slot, the connecting block is inserted into the interior of the slot, the surface of the punch head body is movably sleeved with an internal threaded barrel, the bottom of the inner wall of the internal threaded barrel is fitted with the bottom of the connecting block. The utility model provides a connecting block, a threaded block, an internal threaded barrel and a hexagonal sleeve. When in use, the punch head body can be replaced by simply unscrewing the internal threaded barrel from the threaded block. After the replacement is completed, the internal threaded barrel is tightened onto the threaded block to achieve the installation and fixation of the punch head body, thereby achieving a simpler and more convenient replacement effect.

[0004] However, the punch head body in the above patent is fixed by structures such as an internal threaded barrel and a threaded block. Therefore, when the punch head is replaced due to wear, the punching machine needs to be shut down. The shutdown will cause the production process to be temporarily interrupted and production cannot be continued, resulting in reduced production efficiency. Utility Model Content

[0005] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a punch head for a punching machine to solve some or all of the problems in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A punch head for a punching machine, comprising:

[0008] punching machine;

[0009] Two punch heads for punching;

[0010] A switching structure is arranged on the punching machine and the two punching heads, and is used to switch the two punching heads;

[0011] The switching structure includes a positioning structure for connecting the two punching heads and a driving structure for driving the two punching heads to rotate;

[0012] The connecting structure is arranged on the switching structure and is used for disassembling and assembling the punching head.

[0013] Preferably, the positioning structure includes:

[0014] A fixed plate arranged on the punching machine;

[0015] A rotating disk is rotatably mounted on one side of the fixed disk;

[0016] The ladder-shaped positioning block is arranged on one side of the rotating disk;

[0017] Mounting frame, movably mounted on the ladder-shaped positioning block;

[0018] A fixing assembly is arranged on the punch head and the mounting frame to prevent the punch head from loosening;

[0019] Wherein, the punching head is movably mounted on the inner wall of the mounting frame.

[0020] Preferably, the fixing assembly comprises:

[0021] A threaded groove is provided on the inner wall of the mounting frame;

[0022] A threaded cap is arranged at one end of the punch head, and the threaded cap is threadedly installed in the thread groove;

[0023] Wherein, the trapezoidal positioning block contacts one side of the threaded cap to prevent the threaded cap from loosening.

[0024] Preferably, the driving structure includes:

[0025] A linkage gear ring is arranged on the inner wall of the rotating disk;

[0026] The transmission gear is located inside the rotating disk and meshes with the linkage gear ring for transmission;

[0027] The motor is arranged on the fixed plate, and the output end of the motor is arranged on one side of the transmission gear to drive the transmission gear to rotate;

[0028] A rotating shaft is rotatably mounted on the inner wall of the fixed disk;

[0029] One end of the rotating shaft is arranged on the inner wall of the rotating disk to provide a rotation fulcrum for the rotating disk.

[0030] Preferably, the connection structure includes:

[0031] The movable groove is provided on the inner wall of the ladder-shaped positioning block;

[0032] A fixed screw rod is movably mounted on the mounting frame, and one end of the fixed screw rod is arranged on the inner wall of the movable groove;

[0033] The threaded sleeve is movably mounted on the mounting frame and the ladder-shaped positioning block, and the threaded sleeve is threadedly sleeved on the fixed screw;

[0034] Trapezoidal positioning slots are provided on the mounting frame;

[0035] The extrusion inclined plate is slidably mounted on the inner wall of the movable groove, and the extrusion inclined plate is rotatably mounted on one side of the threaded sleeve;

[0036] The inclined surface insert block is slidably mounted on the inner wall of the movable groove, and the inclined surface insert block contacts the extrusion inclined plate;

[0037] The card slot is provided on the inner wall of the trapezoidal positioning slot, and the inclined insert is movably installed in the card slot;

[0038] A guide assembly is arranged on the inclined plane plug block and is used to guide the moving direction of the inclined plane plug block;

[0039] The reset assembly is arranged on the inner wall of the movable groove and is used to drive the movable inclined plane plug to reset.

[0040] Preferably, the guide assembly comprises:

[0041] A guide plate is arranged on one side of the inclined insert;

[0042] The guide rod is arranged on the inner wall of the movable groove and is slidably mounted on the guide plate to limit the moving direction of the guide plate.

[0043] Preferably, the reset component comprises:

[0044] A spring is slidably sleeved on the guide rod;

[0045] Wherein, one end of the spring is arranged on the inner wall of the movable groove, and the other end of the spring is arranged on one side of the guide plate.

[0046] Preferably, the connection structure further comprises a receiving groove provided on the inner wall of the threaded sleeve, a baffle being rotatably installed in the receiving groove, a rubber pad being arranged on the side of the baffle close to the mounting frame, the rubber pad being in contact with the mounting frame to increase friction.

[0047] The beneficial effects of the present invention are:

[0048] According to the utility model, when one of the punching heads is severely worn after long-term use, the motor can be turned on to drive the mounting frame to rotate. When the mounting frame rotates, it can drive the two punching heads to move in a circular motion, and the positions of the new punching head and the worn punching head can be exchanged, thereby realizing rapid switching of the two punching heads. During the switching process, there is no need to shut down the punching machine, which reduces the production interruption time, enables the punching machine to continue to operate, and improves production efficiency.

[0049] According to the utility model, after the punching machine processing is completed, the threaded sleeve can be rotated to release the connection restriction between the mounting frame and the ladder-shaped positioning block. Then, the mounting frame can be pulled to separate it from the ladder-shaped positioning block, and the internal threaded cap can be exposed at the same time. At this time, the threaded cap on the worn punching head can be rotated and removed for replacement so that it can be used for subsequent punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 A schematic structural diagram of a punch head for a punching machine provided in an embodiment of the present utility model;

[0052] Figure 2 A schematic diagram of the structure of a fixed plate of a punch head for a punching machine provided in an embodiment of the present utility model;

[0053] Figure 3 A schematic structural diagram of a rotating disk of a punch head for a punching machine provided in an embodiment of the present utility model;

[0054] Figure 4 A schematic diagram of the threaded sleeve structure of a punch head for a punching machine provided in an embodiment of the present utility model;

[0055] Figure 5 A schematic diagram of the exploded structure of a trapezoidal positioning block of a punch head for a punching machine provided by an embodiment of the utility model;

[0056] Figure 6 A schematic cross-sectional structure diagram of a trapezoidal positioning block of a punching head for a punching machine provided by an embodiment of the present utility model;

[0057] Figure 7 A schematic cross-sectional structure diagram of an extrusion ramp of a punch head for a punching machine provided by an embodiment of the present utility model;

[0058] Figure 8 The present invention provides a schematic diagram of the structure of an inclined insert block of a punching head for a punching machine according to an embodiment of the present invention.

[0059] Description of reference numerals:

[0060] 1. Punching machine; 2. Punching head; 3. Fixed disk; 301. Rotating disk; 302. Trapezoidal positioning block; 303. Mounting frame; 304. Threaded groove; 305. Threaded cap; 4. Linking gear ring; 401. Transmission gear; 402. Motor; 403. Rotating shaft; 5. Movable groove; 501. Fixed screw; 502. Threaded sleeve; 503. Trapezoidal positioning groove; 504. Extrusion ramp; 505. Inclined insert; 506. Slot; 507. Guide plate; 508. Guide rod; 509. Spring; 510. Storage slot; 511. Baffle. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] Example 1:

[0063] like Figures 1 to 8 As shown, the utility model provides a punching head for a punching machine, comprising: a punching machine 1 and two punching heads 2 for punching processing.

[0064] In order to achieve rapid switching of the two punching heads 2 and avoid affecting the punching process, a switching structure for switching the two punching heads 2 is arranged on the punching machine 1 and the two punching heads 2. The switching structure includes a positioning structure for connecting the two punching heads 2 and a driving structure for driving the two punching heads 2 to rotate.

[0065] Among them, the positioning structure includes a fixed disk 3 arranged on the punching machine 1, a rotating disk 301 rotatably installed on one side of the fixed disk 3, a trapezoidal positioning block 302 arranged on one side of the rotating disk 301, a mounting frame 303 movably installed on the trapezoidal positioning block 302, a fixing component arranged on the punching head 2 and the mounting frame 303 for preventing the punching head 2 from loosening, the punching head 2 is movably installed on the inner wall of the mounting frame 303, and the mounting frame 303 is used to install the punching head 2 to prevent the punching head 2 from shifting during use.

[0066] Specifically, the fixing component includes a threaded groove 304 opened on the inner wall of the mounting frame 303, a threaded cap 305 arranged at one end of the punching head 2, the threaded cap 305 is threadedly installed in the threaded groove 304, and the trapezoidal positioning block 302 is in contact with one side of the threaded cap 305 to prevent the threaded cap 305 from loosening. During installation, the punching head 2 can be placed in the mounting frame 303 and the threaded cap 305 can be screwed into the threaded groove 304 for fixing.

[0067] Among them, the driving structure includes a linkage gear ring 4 arranged on the inner wall of the rotating disk 301, a transmission gear 401 located in the rotating disk 301 for transmission, the transmission gear 401 is engaged with the linkage gear ring 4, and a motor 402 is arranged on the fixed disk 3 for driving the transmission gear 401 to rotate. The output end of the motor 402 is arranged on one side of the transmission gear 401, and the rotating shaft 403 installed on the inner wall of the fixed disk 3 is rotatable. One end of the rotating shaft 403 is arranged on the inner wall of the rotating disk 301 to provide a fulcrum for the rotating disk 301 to rotate. Turning on the motor 402 can drive the transmission gear 401 to rotate. The rotating transmission gear 401 can drive the rotating disk 301 to rotate by engaging with the linkage gear ring 4. The rotating rotating disk 301 can drive the two punching heads 2 to perform circular motion, and the new punching head 2 is rotated to replace the worn punching head 2 to achieve rapid switching of the punching head 2.

[0068] Example 2:

[0069] On the basis of Example 1, in order to facilitate the replacement of the worn punching head 2, a connection structure for disassembling and assembling the punching head 2 is arranged on the switching structure.

[0070] The connecting structure includes a movable groove 5 provided on the inner wall of the ladder-shaped positioning block 302, a fixed screw 501 movably installed on the mounting frame 303, one end of the fixed screw 501 is arranged on the inner wall of the movable groove 5, a threaded sleeve 502 movably installed on the mounting frame 303 and the ladder-shaped positioning block 302, the threaded sleeve 502 is threadedly sleeved on the fixed screw 501, a ladder-shaped positioning groove 503 provided on the mounting frame 303, an extrusion ramp 504 slidably installed on the inner wall of the movable groove 5, the extrusion ramp 504 is rotatably installed on one side of the threaded sleeve 502, an inclined surface plug 505 slidably installed on the inner wall of the movable groove 5, the inclined surface plug 505 contacts the extrusion ramp 504, a slot 506 provided on the inner wall of the ladder-shaped positioning groove 503, and the inclined surface plug The block 505 is movably installed in the slot 506, and a guide component is arranged on the inclined surface block 505 for guiding the moving direction of the inclined surface block 505, and a reset component is arranged on the inner wall of the movable groove 5 for driving the movable inclined surface block 505 to reset. The trapezoidal positioning groove 503 on the mounting frame 303 is aligned with the trapezoidal positioning block 302 and is connected. During the process, the fixed screw 501 on the inner wall of the movable groove 5 and the threaded sleeve 502 on the fixed screw 501 can pass through the mounting frame 303. At this time, the threaded sleeve 502 is rotated, and the threaded sleeve 502 will rotate and move on the fixed screw 501. The moving fixed screw 501 will push the extrusion inclined plate 504 to squeeze the inclined surface blocks 505 on both sides, so that the inclined surface blocks 505 slide into the slot 506 to complete the preliminary positioning.

[0071] Specifically, the guide assembly includes a guide plate 507 arranged on one side of the inclined plug 505, and a guide rod 508 arranged on the inner wall of the movable groove 5 for limiting the moving direction of the guide plate 507. The guide rod 508 is slidably installed on the guide plate 507. When the guide plate 507 moves, it will slide on the guide rod 508 to prevent the guide plate 507 from being offset during the movement.

[0072] Specifically, the reset assembly includes a spring 509 that is slidably sleeved on the guide rod 508, one end of the spring 509 is arranged on the inner wall of the movable groove 5, and the other end of the spring 509 is arranged on one side of the guide plate 507. The spring 509 is in a compressed state. When the extrusion inclined plate 504 is released from the extrusion of the inclined surface plug 505, the spring 509 in the compressed state will push the guide plate 507 to move.

[0073] Among them, the connection structure also includes a storage groove 510 opened on the inner wall of the threaded sleeve 502, and a baffle 511 is rotatably installed in the storage groove 510. A rubber pad for increasing friction is arranged on the side of the baffle 511 close to the mounting frame 303. The rubber pad is in contact with the mounting frame 303. The baffle 511 in the storage groove 510 is flipped so that the baffle 511 is located on one side of the mounting frame 303. The moving threaded sleeve 502 can drive the rubber pad on the baffle 511 to press on one side of the mounting frame 303, thereby increasing the friction between the baffle 511 and the mounting frame 303.

[0074] Working principle:

[0075] When the punching machine 1 is in use and one of the punching heads 2 is severely worn, the motor 402 can be turned on. The output end of the motor 402 can drive the transmission gear 401 to rotate. The rotating transmission gear 401 can drive the rotating disk 301 to rotate by meshing with the linkage gear ring 4. The rotating rotating disk 301 can drive the rotating shaft 403 to rotate on the inner wall of the fixed disk 3. The continuously rotating rotating disk 301 can drive the mounting bracket 303 to rotate through the trapezoidal positioning block 302, so that the mounting bracket 303 drives the two punching heads 2 to perform a circular motion, and the new The punch head 2 is rotated and replaced to the worn punch head 2 to achieve rapid switching of the punch head 2. After the processing is completed, the punching machine 1 can be turned off, and then the threaded sleeve 502 is rotated. The rotating threaded sleeve 502 will rotate on one side of the extrusion inclined plate 504 and move by cooperating with the thread of the fixed screw 501, so that the moving threaded sleeve 502 drives the extrusion inclined plate 504 to slide on the inner wall of the movable groove 5. The continuously sliding extrusion inclined plate 504 can slowly break away from the extrusion of the inclined surface plug 505. Since the spring 509 is in a compressed state, you can refer to Figure 7 and Figure 8When the extrusion ramp 504 is released from the extrusion of the inclined surface insert 505, the spring 509 in the compressed state will push the guide plate 507 to move, so that the guide plate 507 drives the inclined surface insert 505 to slide into the movable groove 5, and at the same time, the moving inclined surface insert 505 will be separated from the card slot 506, releasing the connection restriction between the ladder-shaped positioning block 302 and the mounting bracket 303, and then flip the baffle 511 on the threaded sleeve 502, and put the baffle 511 into the receiving groove 510, so that the baffle 511 Disengage from the obstruction on one side of the mounting bracket 303. At this time, pull the mounting bracket 303 so that the mounting bracket 303 drives the trapezoidal positioning groove 503 to disengage from the trapezoidal positioning block 302, so that the mounting bracket 303 can be removed, and at the same time, the threaded cap 305 in the mounting bracket 303 can be exposed. At this time, the threaded cap 305 can be rotated with a hexagonal wrench so that the threaded cap 305 rotates and moves in the threaded groove 304 until the punch head 2 is completely pulled out, so that the worn punch head 2 can be replaced.

[0076] When installing the punch head 2, put the punch head 2 back into the mounting bracket 303 and screw the threaded cap 305 into the threaded groove 304 to fix it, then align the trapezoidal positioning groove 503 on the mounting bracket 303 with the trapezoidal positioning block 302 and sleeve it. During the process, the fixed screw 501 on the inner wall of the movable groove 5 and the threaded sleeve 502 on the fixed screw 501 can pass through the mounting bracket 303. At this time, flip the baffle 511 in the receiving groove 510 so that the baffle 511 is located on one side of the mounting bracket 303. When the threaded sleeve 502 is rotated in the opposite direction, the threaded sleeve 502 will rotate and move to reset on the fixed screw 501. The reset fixed screw 501 will push the extrusion inclined plate 504 to slide in the movable groove 5. The reset causes the extrusion inclined plate 504 to squeeze the inclined surface blocks 505 on both sides. The squeezed inclined surface blocks 505 will drive the guide plate 507 to re-extrude the compression spring 509. At the same time, the inclined surface blocks 505 will slide into the card slot 506 to complete the initial positioning, preventing the ladder-shaped positioning block 302 from loosening from the mounting bracket 303. The ladder-shaped positioning block 302 can block one side of the threaded cap 305 to prevent the threaded cap 305 from rotating out. In addition, the moving threaded sleeve 502 in the process can drive the rubber pad on the baffle 511 to press against one side of the mounting bracket 303, thereby increasing the friction between the baffle 511 and the mounting bracket 303, preventing the threaded sleeve 502 from rotating and loosening, and further improving its stability.

[0077] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A punch head for a punching machine, characterized in that: include: Punching machine (1); Two punching heads (2) for punching processing; A switching structure is arranged on the punching machine (1) and the two punching heads (2) and is used to switch the two punching heads (2); The switching structure includes a positioning structure for connecting the two punching heads (2) and a driving structure for driving the two punching heads (2) to rotate; The connecting structure is arranged on the switching structure and is used for disassembling and assembling the punching head (2).

2. A punch head for a punching machine according to claim 1, characterized in that: The positioning structure includes: A fixed plate (3) is arranged on the punching machine (1); A rotating disk (301) is rotatably mounted on one side of the fixed disk (3); A ladder-shaped positioning block (302) is arranged on one side of the rotating disk (301); A mounting frame (303) is movably mounted on the ladder-shaped positioning block (302); A fixing assembly is arranged on the punching head (2) and the mounting frame (303) and is used to prevent the punching head (2) from loosening; Wherein, the punching head (2) is movably mounted on the inner wall of the mounting frame (303).

3. A punch head for a punching machine according to claim 2, characterized in that: The fixing assembly includes: A threaded groove (304) is provided on the inner wall of the mounting frame (303); A threaded cap (305) is arranged at one end of the punch head (2), and the threaded cap (305) is threadedly installed in the thread groove (304); The trapezoidal positioning block (302) contacts one side of the threaded cap (305) to prevent the threaded cap (305) from loosening.

4. A punch head for a punching machine according to claim 1, characterized in that: The driving structure includes: A linkage gear ring (4) is arranged on the inner wall of the rotating disk (301); A transmission gear (401) is located inside the rotating disk (301), and the transmission gear (401) is engaged with the linkage gear ring (4) for transmission; A motor (402) is arranged on the fixed disk (3), and an output end of the motor (402) is arranged on one side of the transmission gear (401) for driving the transmission gear (401) to rotate; A rotating shaft (403) is rotatably mounted on the inner wall of the fixed disk (3); One end of the rotating shaft (403) is arranged on the inner wall of the rotating disk (301), providing a fulcrum for the rotating disk (301).

5. A punch head for a punching machine according to claim 1, characterized in that: The connection structure includes: A movable groove (5) is provided on the inner wall of the ladder-shaped positioning block (302); A fixed screw rod (501) is movably mounted on the mounting frame (303), and one end of the fixed screw rod (501) is arranged on the inner wall of the movable groove (5); The threaded sleeve (502) is movably mounted on the mounting frame (303) and the ladder-shaped positioning block (302), and the threaded sleeve (502) is threadedly sleeved on the fixed screw (501); A trapezoidal positioning groove (503) is provided on the mounting frame (303); An extrusion inclined plate (504) is slidably mounted on the inner wall of the movable groove (5), and the extrusion inclined plate (504) is rotatably mounted on one side of the threaded sleeve (502); An inclined surface insert block (505) is slidably mounted on the inner wall of the movable groove (5), and the inclined surface insert block (505) is in contact with the extrusion inclined plate (504); A card slot (506) is provided on the inner wall of the trapezoidal positioning slot (503), and the inclined insert block (505) is movably installed in the card slot (506); A guide assembly is arranged on the inclined plane plug block (505) and is used to guide the moving direction of the inclined plane plug block (505); The reset assembly is arranged on the inner wall of the movable groove (5) and is used to drive the movable inclined surface insert (505) to reset.

6. A punch head for a punching machine according to claim 5, characterized in that: The guide assembly comprises: A guide plate (507) is arranged on one side of the inclined surface insert block (505); The guide rod (508) is arranged on the inner wall of the movable groove (5). The guide rod (508) is slidably mounted on the guide plate (507) and is used to limit the moving direction of the guide plate (507).

7. A punch head for a punching machine according to claim 5, characterized in that: The reset component includes: A spring (509) is slidably sleeved on the guide rod (508); One end of the spring (509) is arranged on the inner wall of the movable groove (5), and the other end of the spring (509) is arranged on one side of the guide plate (507).

8. A punch head for a punching machine according to claim 1, characterized in that: The connection structure further comprises a receiving groove (510) provided on the inner wall of the threaded sleeve (502), a baffle (511) being rotatably mounted in the receiving groove (510), a rubber pad being arranged on a side of the baffle (511) close to the mounting frame (303), the rubber pad being in contact with the mounting frame (303) for increasing friction.

Images