Quick die changing device with good stability for punch press

Abstract

The utility model belongs to the field of die changing devices, and particularly relates to a quick die changing device with good stability for a punching machine, which solves the problem that a die cannot be centered and positioned in the prior art, and comprises a workbench and a die changing mechanism, the die changing mechanism comprises a groove formed in the upper surface of the workbench, two threaded rods rotationally arranged on the inner wall of the groove in a sleeving mode and a positioning table slidably arranged on the inner wall of the groove in a sleeving mode, and the two sides of the positioning table are in threaded connection with the outer surfaces of the two threaded rods correspondingly. According to the die changing device, the die can be centered and positioned through the die changing mechanism, workers do not need to move the die manually in the subsequent installation process through the effect of centering and positioning, the die changing work is faster, the positioned die can be conveyed into the punch press body through the device, and the die changing efficiency is improved. And the punching device in the punching machine body is driven to move downwards, so that the mold centered and positioned on the upper surface of the positioning table can be connected with the punching device.

Description

Technical Field

[0001] The utility model relates to the technical field of die changing devices, in particular to a punching machine fast die changing device with good stability. Background Art

[0002] At present, when a punch press mold is replaced, a forklift is usually required to transfer the mold from the mold storage place to the punch press installation table, and then the mold is positioned and installed manually.

[0003] The authorization announcement number in the prior art is: CN217393525U, and the name is a mold changing device for a punching machine mold. The inner ring of the fixed bearing of the utility model is welded to the upper outer side of the longitudinal fixing frame, which is conducive to using the fixed bearing to rotate the angle of the transverse connecting frame from the outer side of the longitudinal fixing frame according to needs during use; a silicone pad is glued to one side of the clamping bolt, which is conducive to using the clamping bolt to rotate from the threaded ring during use, thereby facilitating the fixing of the mold to the upper part of the mounting pad.

[0004] Although the above device can achieve the effect of mold changing, it is necessary to adjust the clamping bolts on both sides separately during the operation, which will make it impossible to accurately center the mold. In the subsequent mold changing process, it is still necessary to manually fine-tune the position of the mold. In order to further optimize the mold changing process and improve the efficiency of mold changing, a punch press quick mold changing device with good stability is proposed. Utility Model Content

[0005] The utility model solves the technical problem that the mold cannot be centered and positioned, and provides a punching machine quick mold changing device with good stability.

[0006] In order to solve the above technical problems, the utility model provides a quick die changing device for a punching machine with good stability, including a workbench and a die changing mechanism, the die changing mechanism including a groove opened on the upper surface of the workbench and two threaded rods rotatably sleeved on the inner wall of the groove, and a positioning platform slidably sleeved on the inner wall of the groove, the two sides of the positioning platform are respectively threadedly connected to the outer surfaces of the two threaded rods, the outer surface of the workbench is fixedly connected to a first servo motor, the output shaft end of the first servo motor is fixedly connected to the rotating shaft end of one of the two threaded rods, the same end of the two threaded rods is fixedly connected to a sprocket, a chain is provided inside the groove, and the two sprockets are connected by chain transmission.

[0007] A two-way lead screw is rotatably sleeved on the inner wall of the positioning table. Two connecting blocks are threadedly connected to the outer surface of the two-way lead screw. Two circular holes are formed on the outer surface of each connecting block. The two threaded rods are respectively sleeved inside the circular holes. A positioning plate is fixedly connected to the upper surface of each connecting block. A second servo motor is fixedly connected to the outer surface of the groove. The output shaft end of the second servo motor is fixedly connected to the rotating shaft end of the two-way lead screw.

[0008] Preferably, a baffle is fixedly connected to the inner wall of the groove. The outer surfaces of the two threaded rods are respectively rotatably sleeved on both sides of the baffle. By providing the baffle, the movement trajectory of the positioning table can be limited, avoiding the situation that the positioning table interferes with the work of other components during movement.

[0009] Preferably, a through hole is formed on the outer surface of the baffle. The size value of the through hole is greater than the size value of the second servo motor. By providing the through hole, the second servo motor can pass through the baffle, avoiding damage to the second servo motor during the movement of the positioning table.

[0010] Preferably, two guide rods are fixedly connected to the inner wall of the positioning table. The two sides of the two connecting blocks are respectively slidably sleeved on the outer surfaces of the two guide rods. The outer surfaces of the two positioning plates are respectively slidably connected to the reserved grooves formed on the upper surface of the positioning table. By providing the guide rods, the connecting blocks can move more stably, thus facilitating a more stable die change operation.

[0011] Preferably, a rotatable support rod is installed on the outer surface of the workbench. A third servo motor is fixedly connected to the outer surface of the workbench. By providing the third servo motor, the support rod can be driven to rotate.

[0012] Preferably, the output shaft end of the third servo motor is fixedly connected to the bottom end of the support rod. A traction assembly is installed at the top end of the support rod. By providing the traction assembly, the work of hoisting the die can be facilitated, which is beneficial to the die change work.

[0013] Preferably, a punching press body is provided outside the workbench. A guide groove is formed on the surface of the punching press body. A guide strip is fixedly connected to the bottom surface of the workbench. The guide groove and the guide strip are adapted to each other. By providing the guide groove and the guide strip, the workbench and the punching press body can be more accurately and conveniently docked, which is beneficial to the subsequent die change work.

[0014] Preferably, four universal wheels are installed at the bottom of the workbench. A self-locking mechanism is provided inside each universal wheel. By providing the universal wheels, the workbench can be conveniently moved, which is beneficial to the docking work between the workbench and the punching press body and facilitates the rapid die change work.

[0015] Compared with the related technologies, the utility model has the following beneficial effects:

[0016] 1. By setting up a die-changing mechanism, the utility model can achieve the centering and positioning of the die. Through the effect of centering and positioning, during the subsequent installation process, it is no longer necessary for workers to manually move the die, realizing a faster die-changing operation. Moreover, the device can also convey the positioned die into the punch body and drive the stamping device in the punch body to move downward, so as to connect the die centered and positioned on the upper surface of the positioning table with the stamping device, realizing a stable and fast die-changing operation.

[0017] 2. By setting up a baffle, the movement track of the positioning table can be limited to avoid the interference of the positioning table on the work of other components during the movement. By setting up a through-hole, the second servo motor can pass through the baffle to avoid damage to the second servo motor during the movement of the positioning table. By setting up a guide rod, the connecting block can move more stably during movement, thus facilitating the realization of a more stable die-changing operation. By setting up a guide groove and a guide strip, the workbench and the punch body can be more accurately and conveniently docked, which is beneficial to the subsequent die-changing work. By setting up universal wheels, it is convenient to move the workbench, which is beneficial to the docking work between the workbench and the punch body and facilitates the fast die-changing work.

[0018] To make the above and other purposes, features and advantages of the utility model more obvious and understandable, the following specific preferred embodiments are given below and described in detail in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is the overall structure diagram of the present utility model;

[0021] Figure 2 It is the structure diagram of the punch body of the present utility model;

[0022] Figure 3 It is the upward view structure diagram of the workbench of the present utility model;

[0023] Figure 4 It is the downward view structure diagram of the workbench of the present utility model;

[0024] Figure 5 It is the partial cross-sectional structure diagram of the present utility model.

[0025] Reference numerals in the figure:

[0026] 1. Workbench; 2. Die-changing mechanism; 201. Groove; 202. Threaded rod; 203. Positioning table; 204. First servo motor; 205. Sprocket; 206. Chain; 207. Baffle; 208. Through port; 209. Bi-directional lead screw; 210. Connecting block; 211. Guide rod; 212. Round hole; 213. Positioning plate; 214. Second servo motor; 3. Support rod; 4. Third servo motor; 5. Traction assembly; 6. Press body; 7. Guide groove; 8. Guide strip; 9. Universal wheel. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-5 , a quick die-changing device for a press with good stability, including a workbench 1 and a die-changing mechanism 2. A rotatable support rod 3 is installed on the outer surface of the workbench 1, and a third servo motor 4 is fixedly connected to the outer surface of the workbench 1.

[0029] The output shaft end of the third servo motor 4 is fixedly connected to the bottom end of the support rod 3. A traction assembly 5 is installed at the top end of the support rod 3. The support rod 3, the third servo motor 4, and the traction assembly 5 are all existing mechanisms and have been disclosed in the comparative document, so they will not be elaborated here. However, it should be understood that through the support rod 3, the third servo motor 4, and the traction assembly 5, the work of hoisting the die can be facilitated, which is beneficial to the die-changing work.

[0030] A press body 6 is provided outside the workbench 1. A guide groove 7 is formed on the surface of the press body 6. A guide strip 8 is fixedly connected to the bottom surface of the workbench 1. The guide groove 7 and the guide strip 8 are adapted to each other. The press body 6 is an existing mechanism and is not the object to be protected in this application, so it will not be elaborated here.

[0031] By providing the guide groove 7 and the guide strip 8, the workbench 1 and the press body 6 can be more accurately and conveniently docked, which is beneficial to the subsequent die-changing work.

[0032] Four universal wheels 9 are installed at the bottom of the workbench 1. A self-locking mechanism is provided inside each universal wheel 9. The universal wheels 9 can be provided to facilitate the movement of the workbench 1, which is beneficial to the docking work between the workbench 1 and the punch body 6 and convenient for quick mold changing.

[0033] The mold changing mechanism 2 includes a groove 201 opened on the upper surface of the workbench 1, two threaded rods 202 rotatably sleeved on the inner wall of the groove 201, and a positioning platform 203 slidably sleeved on the inner wall of the groove 201. Both sides of the positioning platform 203 are respectively threadedly connected to the outer surfaces of the two threaded rods 202.

[0034] The outer surface of the workbench 1 is fixedly connected with a first servo motor 204. When the two threaded rods 202 rotate simultaneously, the positioning platform 203 moves in the inner wall of the groove 201, thereby facilitating the subsequent stable mold change work.

[0035] The output shaft end of the first servo motor 204 is fixedly connected to the rotating shaft end of one of the two threaded rods 202 , and a sprocket 205 is fixedly connected to the same end of the two threaded rods 202 . A chain 206 is provided inside the groove 201 , and the two sprockets 205 are connected in transmission via the chain 206 .

[0036] When the first servo motor 204 is started, the corresponding threaded rod 202 will be driven to rotate. Through the provided sprocket 205 and chain 206, the two threaded rods 202 can rotate in the same direction at the same time, thereby achieving the effect of moving the positioning table 203 in the inner wall of the groove 201, which is convenient for the subsequent transportation of the mold and is beneficial to the replacement of the mold.

[0037] The inner wall of the groove 201 is fixedly connected with a baffle 207 , and the outer surfaces of the two threaded rods 202 are rotatably sleeved on both sides of the baffle 207 .

[0038] The baffle 207 can be provided to limit the movement trajectory of the positioning platform 203, thereby preventing the positioning platform 203 from interfering with the work of other components during the movement.

[0039] The inner wall of the positioning platform 203 is rotatably sleeved with a bidirectional screw rod 209, and the outer surface of the bidirectional screw rod 209 is threadedly connected to two connecting blocks 210. When the bidirectional screw rod 209 rotates, the two connecting blocks 210 will move towards or away from each other.

[0040] Two circular holes 212 are formed on the outer surface of each connection block 210, and the two threaded rods 202 are respectively sleeved inside the circular holes 212. The circular holes 212 can prevent the rotation of the threaded rods 202 from affecting the connection block 210, thereby achieving an independent operation effect.

[0041] A positioning plate 213 is fixedly connected to the upper surface of each connecting block 210, and a second servo motor 214 is fixedly connected to the outer surface of the groove 201. The output shaft end of the second servo motor 214 is fixedly connected to the rotating shaft end of the bidirectional lead screw 209.

[0042] Two guide rods 211 are fixedly connected to the inner wall of the positioning table 203. The two sides of the two connecting blocks 210 are respectively sleeved on the outer surfaces of the two guide rods 211 in a sliding manner. The outer surfaces of the two positioning plates 213 are respectively slidably connected to the reserved grooves formed on the upper surface of the positioning table 203.

[0043] By arranging the guide rods 211, the connecting block 210 can move more stably, thus facilitating a more stable die change operation.

[0044] When the second servo motor 214 is started, it will drive the bidirectional lead screw 209 to rotate. When the bidirectional lead screw 209 rotates, it will make the two positioning plates 213 move closer to or away from each other through the two connecting blocks 210, so as to be able to perform the centering clamping operation on the die placed on the upper surface of the positioning table 203.

[0045] In this way, the die can be positioned at the center position on the upper surface of the positioning table 203. At the same time, in cooperation with the arranged guide groove 7 and guide strip 8, the punching machine body 6 and the workbench 1 can be located on the same central axis. In this way, through the movement of the positioning table 203 in the groove 201, the die positioned on the positioning table 203 can be conveyed into the punching machine body 6 for die change operation, realizing a more accurate and rapid die change operation.

[0046] During the die change process, it is no longer necessary for the staff to move the die. It only needs to dock the die with the punching machine body 6. The process of installing the die on the punching machine body 6 has been disclosed in the comparative document, so it will not be elaborated here.

[0047] A through hole 208 is formed on the outer surface of the baffle 207. The dimension value of the through hole 208 is larger than the dimension value of the second servo motor 214. By arranging the through hole 208, the second servo motor 214 can pass through the baffle 207, avoiding damage to the second servo motor 214 during the movement of the positioning table 203.

[0048] The specific implementation process of the present utility model is as follows: First, the workbench 1 and the punch body 6 are docked through the guide groove 7 and the guide strip 8, so that the workbench 1 and the punch body 6 are located on the same center line. Then, the mold is hoisted and placed on the upper surface of the positioning table 203 through the support rod 3, the third servo motor 4 and the traction assembly 5. Then, the second servo motor 214 is started. When the second servo motor 214 is started, it will drive the bidirectional lead screw 209 to rotate. By the rotation of the bidirectional lead screw 209, the two connecting blocks 210 can move closer to or away from each other, so that the two positioning plates 213 can move closer to or away from each other, and thus the positions of the two positioning plates 213 can be adjusted according to the size of the mold, so as to realize the centering clamping of molds of different sizes. Then, the first servo motor 204 is started. When the first servo motor 204 is started, the corresponding threaded rod 202 will rotate. Through the arranged sprockets 205 and the chain 206, the other threaded rod 202 can also rotate. The two threaded rods 202 can rotate simultaneously in the same direction, so as to drive the positioning table 203 to move in the inner wall of the groove 201, and thus the mold positioned on the positioning table 203 can be conveyed into the punch body 6. Then, the stamping device in the punch body 6 is driven to move down to be docked and installed with the mold on the positioning table 203, and the installation work can be completed.

[0049] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A punch press quick die changing device with good stability, comprising a workbench (1) and a die changing mechanism (2), characterized in that: The mold changing mechanism (2) comprises a groove (201) provided on the upper surface of the workbench (1), two threaded rods (202) rotatably sleeved on the inner wall of the groove (201), and a positioning platform (203) slidably sleeved on the inner wall of the groove (201), the two sides of the positioning platform (203) are respectively threadedly connected to the outer surfaces of the two threaded rods (202), the outer surface of the workbench (1) is fixedly connected with a first servo motor (204), the output shaft end of the first servo motor (204) is fixedly connected to the rotating shaft end of one of the two threaded rods (202), the same end of the two threaded rods (202) is fixedly connected with a sprocket (205), a chain (206) is provided inside the groove (201), and the two sprockets (205) are connected by transmission via the chain (206); A bidirectional screw (209) is rotatably sleeved on the inner wall of the positioning platform (203); the outer surface of the bidirectional screw (209) is threadedly connected to two connecting blocks (210); the outer surface of each connecting block (210) is provided with two circular holes (212); the two threaded rods (202) are respectively sleeved inside the circular holes (212); the upper surface of each connecting block (210) is fixedly connected to a positioning plate (213); the outer surface of the groove (201) is fixedly connected to a second servo motor (214); the output shaft end of the second servo motor (214) is fixedly connected to the rotating shaft end of the bidirectional screw (209).

2. A punch press quick die changing device with good stability according to claim 1, characterized in that: The inner wall of the groove (201) is fixedly connected with a baffle (207), and the outer surfaces of the two threaded rods (202) are rotatably sleeved on both sides of the baffle (207) respectively.

3. A punch press quick die changing device with good stability according to claim 2, characterized in that: The outer surface of the baffle (207) is provided with a through opening (208), and the size of the through opening (208) is greater than the size of the second servo motor (214).

4. A punch press quick die changing device with good stability according to claim 1, characterized in that: The inner wall of the positioning platform (203) is fixedly connected to two guide rods (211), the two sides of the two connecting blocks (210) are respectively slidably mounted on the outer surfaces of the two guide rods (211), and the outer surfaces of the two positioning plates (213) are respectively slidably connected to the reserved grooves provided on the upper surface of the positioning platform (203).

5. The punch press quick die changing device with good stability according to claim 1, characterized in that: A rotatable support rod (3) is installed on the outer surface of the workbench (1), and a third servo motor (4) is fixedly connected to the outer surface of the workbench (1).

6. A punch press quick die changing device with good stability according to claim 5, characterized in that: The output shaft end of the third servo motor (4) is fixedly connected to the bottom end of the support rod (3), and a traction assembly (5) is installed on the top end of the support rod (3).

7. The punch press quick die changing device with good stability according to claim 1, characterized in that: A punch body (6) is provided outside the workbench (1), a guide groove (7) is provided on the surface of the punch body (6), a guide bar (8) is fixedly connected to the bottom surface of the workbench (1), and the guide groove (7) and the guide bar (8) are matched.

8. The punch press quick die changing device with good stability according to claim 1, characterized in that: Four universal wheels (9) are installed at the bottom of the workbench (1), and a self-locking mechanism is provided inside each universal wheel (9).

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