Numerical control turret punch press

Abstract

The utility model belongs to the technical field of numerical control turret punch presses, and particularly relates to a numerical control turret punch press which comprises a workbench, a punched hole is formed in the middle of the top of the workbench, a support is arranged on the workbench and located above the punched hole, a hydraulic driving device is arranged in the middle of the top end in the support, and a buffering assembly is arranged at the bottom end of the hydraulic driving device. A stamping die is arranged at the bottom of the buffering assembly, and a limiting mechanism is arranged at the front end of the workbench. Through mutual cooperation of the movable groove, the forward threaded rod, the double-shaft output motor, the reverse threaded rod, the clamping plate, the threaded rod, the rotating disc and the pressing plate, the punching machine is provided with a limiting mechanism for the tail end of a plate, the problem that the tail end of part of the plate with the large length tilts in the punching process is solved, and the punching efficiency is improved. And through mutual cooperation of a sleeve, a buffer block, a limiting block and a spring, the punching machine has the buffer function, and the problem that when the punching machine punches a thick plate, the instantaneous pressure between the plate and the punching die is too large is solved.

Description

Technical Field

[0001] This utility model relates to the field of CNC turret punch press technology, specifically a CNC turret punch press. Background Technology

[0002] A CNC turret punch press consists of a computer control system, a mechanical or hydraulic power system, a servo feeding mechanism, etc. Through programming software or a manually programmed machining program, the servo feeding mechanism feeds the sheet metal to the position to be processed. At the same time, the mold selection system selects the corresponding mold from the mold library, and the hydraulic power system performs punching according to the program to automatically complete the processing of the workpiece.

[0003] Existing patent CN218744298U discloses a CNC turret punch press, including a device box and a turret body. The turret body is fixedly connected to the top of the device box. Multiple punching holes are opened at the bottom of the device box. A reciprocating screw is rotatably connected inside the device box. A scraper is threaded onto the threaded section of the reciprocating screw. A first bevel gear is fixedly connected to one end of the reciprocating screw. A second bevel gear is rotatably connected inside the device box. The first and second bevel gears mesh. The second bevel gear is fixedly connected to a first transmission wheel. The first transmission wheel is connected to the second transmission wheel via a belt. This invention, through the scraper, reciprocating screw, first bevel gear, and second bevel gear, uses a servo motor to drive a rotating roller to rotate, which in turn drives the reciprocating screw to rotate via the second transmission wheel. This allows the scraper to reciprocate and scrape the bottom of the device box, thus preventing punching waste from accumulating at the bottom of the device box.

[0004] The existing technology has the following problems:

[0005] 1. Existing CNC turret punch presses do not have a limiting mechanism for the tail end of the sheet metal. This causes the tail end of some longer sheet metal to easily warp during the punching process, resulting in errors in the overall punching accuracy, reducing the practicality of the punch press and making it inconvenient to promote.

[0006] 2. Existing CNC turret punch presses do not have a buffer function. This leads to problems such as damage to the punching die when punching thicker plates due to excessive instantaneous pressure between the plate and the die, which increases processing costs and reduces work efficiency. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a CNC turret punch press, which solves the problem that current technologies lack a limiting mechanism for the tail end of sheet metal. This leads to the tail end of some longer sheet metals easily warping during the punching process, resulting in errors in the overall punching accuracy. Furthermore, the lack of a buffer function causes the punch press to be prone to damage to the punching die due to excessive instantaneous pressure between the sheet metal and the punching die when punching thicker sheet metals.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a CNC turret punch press, comprising a worktable, a punch hole in the middle of the top of the worktable, a support above the punch hole on the worktable, a hydraulic drive device in the middle of the top of the support, a buffer assembly at the bottom of the hydraulic drive device, a stamping die at the bottom of the buffer assembly, a limit mechanism at the front of the worktable, and a waste collection box in the middle of the bottom of the worktable;

[0009] The limiting mechanism includes a fixed frame, a movable groove on one side of the top of the fixed frame, a connecting block inside the movable groove, a movable plate at the bottom of the connecting block, a forward threaded rod inside the movable plate, a bearing seat at one end of the forward threaded rod, a dual-axis output motor at the other end of the forward threaded rod, a reverse threaded rod on one side of the dual-axis output motor, a clamping plate at the top of the connecting block, a screw at the middle of the top of the clamping plate, a turntable at the top of the screw, and a pressure plate at the bottom of the turntable.

[0010] As a preferred embodiment of this utility model, the buffer assembly includes a protective frame, a sleeve, a buffer block, a limiting block, a damping rod, and a spring. The sleeve is provided at the top of the inner part of the protective frame, the buffer block is provided inside the sleeve, the limiting block is provided at the top of the buffer block, the damping rod is provided at the top of the limiting block, and a spring is provided on the outer surface of the damping rod. The spring is welded onto the sleeve, and the size of the spring is adapted to the size of the damping rod.

[0011] As a preferred technical solution of this utility model, the buffer block is installed on the sleeve by adhesive connection. The buffer block is specifically made of rubber. There are several groups of buffer blocks, and the buffer blocks are arranged in a ring array.

[0012] As a preferred embodiment of this utility model, the size of the limiting block is adapted to the size of the sleeve, the limiting block is fixedly connected to the damping rod, and the limiting block is slidably connected to the inner wall of the sleeve.

[0013] As a preferred technical solution of this utility model, there are four sets of movable plates, and all four sets of movable plates are installed on their corresponding threaded rods by threaded connection. The movable plates and the connecting blocks are integrated into one unit.

[0014] In a preferred embodiment of this invention, both the forward threaded rod and the reverse threaded rod are rotatably connected and mounted on their corresponding bearing seats, and the dimensions of the forward threaded rod and the reverse threaded rod are adapted to each other.

[0015] As a preferred embodiment of this utility model, the pressure plate is provided with a threaded hole that matches the size of the screw, the top end of the screw is fixedly connected to a turntable, and the bottom end of the screw is fixedly connected to the pressure plate.

[0016] Compared with the prior art, this utility model provides a CNC turret punch press, which has the following beneficial effects:

[0017] 1. This CNC turret punch press, by setting up a movable slot, a forward threaded rod, a dual-axis output motor, a reverse threaded rod, a clamping plate, a screw, a turntable, and a pressure plate, first starts the dual-axis output motor to drive the forward and reverse threaded rods to rotate synchronously when punching long sheet metal. Then, the rotation of the forward and reverse threaded rods drives their corresponding clamping plates to move horizontally along the movable slot to clamp and fix the tail end of the sheet metal. Finally, by rotating the turntable, the screw rotates, causing the pressure plate to move vertically downward to press and fix the tail end of the sheet metal, further improving the limiting and fixing effect of the sheet metal. This design gives the punch press a limiting mechanism for the tail end of the sheet metal, avoiding the problem of the tail end of some long sheet metals lifting up during the punching process, improving the practicality of the punch press, and facilitating its promotion.

[0018] 2. This CNC turret punch press, by incorporating a sleeve, buffer block, limit block, and spring, utilizes a design where, when the stamping die contacts a thicker sheet metal, the sleeve compresses the spring, which in turn causes the limit block to compress the buffer block. Simultaneously, the deformation of the buffer block and spring due to compression provides multiple buffering effects, weakening and reducing the instantaneous pressure between the sheet metal and the stamping die, thereby improving the punch press's buffering effect. This design enables the punch press to have a buffering function, preventing excessive instantaneous pressure between the sheet metal and the stamping die when stamping thicker sheets, reducing processing costs, and improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a sectional view of the protective frame of this utility model;

[0021] Figure 3 This is an enlarged view of the structure at point A of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the limiting mechanism of this utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the fixing frame of this utility model.

[0024] In the diagram: 1. Workbench; 2. Punching; 3. Support; 4. Hydraulic drive device; 5. Buffer assembly; 501. Protective frame; 502. Sleeve; 503. Buffer block; 504. Limiting block; 505. Damping rod; 506. Spring; 6. Stamping die; 7. Limiting mechanism; 701. Fixed frame; 702. Movable groove; 703. Connecting block; 704. Moving plate; 705. Forward threaded rod; 706. Bearing seat; 707. Dual-shaft output motor; 708. Reverse threaded rod; 709. Clamping plate; 710. Screw; 711. Turntable; 712. Pressure plate; 8. Waste collection box. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 In this embodiment: A CNC turret punch press includes a worktable 1, a punch hole 2 is opened in the middle of the top of the worktable 1, a support 3 is provided above the punch hole 2 on the worktable 1, a hydraulic drive device 4 is provided in the middle of the top of the support 3, a buffer assembly 5 is provided at the bottom of the hydraulic drive device 4, a stamping die 6 is provided at the bottom of the buffer assembly 5, a limit mechanism 7 is provided at the front end of the worktable 1, and a waste collection box 8 is provided in the middle of the bottom of the worktable 1. The waste collection box 8 facilitates the collection of stamping waste.

[0027] The limiting mechanism 7 includes a fixed frame 701. A movable groove 702 is provided on one side of the top of the fixed frame 701. A connecting block 703 is provided inside the movable groove 702. A movable plate 704 is provided at the bottom of the connecting block 703. A forward threaded rod 705 is provided inside the movable plate 704. A bearing seat 706 is provided at one end of the forward threaded rod 705. A dual-axis output motor 707 (model 86HS118-SZ) is provided at the other end of the forward threaded rod 705. A reverse threaded rod 708 is provided on one side of the dual-axis output motor 707. A clamping plate 709 is provided at the top of the connecting block 703 to facilitate clamping and fixing the tail end of the plate, thereby improving the stability of the plate. A screw 710 is provided in the middle of the top of the clamping plate 709. A turntable 711 is provided at the top of the screw 710. A pressure plate 712 is provided at the bottom of the turntable 711.

[0028] In this embodiment, the buffer assembly 5 includes a protective frame 501, a sleeve 502, a buffer block 503, a limiting block 504, a damping rod 505, and a spring 506. The sleeve 502 is provided at the top of the inner part of the protective frame 501. The buffer block 503 is provided inside the sleeve 502. The limiting block 504 is provided at the top of the buffer block 503. The damping rod 505 is provided at the top of the limiting block 504. The spring 506 is provided on the outer surface of the damping rod 505. The spring 506 is welded onto the sleeve 502. The size of the spring 506 is adapted to the size of the damping rod 505.

[0029] Specifically, the spring 506 and the damping rod 505 work together to buffer the instantaneous pressure when the sheet metal comes into contact with the stamping die 6, thereby improving the buffering effect of the press.

[0030] In this embodiment, the buffer block 503 is installed on the sleeve 502 by adhesive connection. The buffer block 503 is specifically made of rubber. There are several groups of buffer blocks 503, and the buffer blocks 503 are arranged in a ring array.

[0031] Specifically, the buffer block 503 is deformed by compression, which plays a buffering role, weakens the instantaneous pressure when the sheet metal comes into contact with the stamping die 6, and thus improves the buffering effect of the punch press.

[0032] In this embodiment, the size of the limiting block 504 is adapted to the size of the sleeve 502. The limiting block 504 is fixedly connected to the damping rod 505, and the limiting block 504 is slidably connected to the inner wall of the sleeve 502.

[0033] Specifically, the damping rod 505 is limited by the limiting block 504 to prevent it from detaching from the sleeve 502 and affecting the normal use of the damping rod 505.

[0034] In this embodiment, there are four sets of movable plates 704. All four sets of movable plates 704 are installed on their corresponding threaded rods by threaded connections. The movable plates 704 and the connecting blocks 703 are integrated into one unit.

[0035] Specifically, the rotation of the forward threaded rod 705 and the reverse threaded rod 708 respectively drives the corresponding movable plate 704 to move horizontally along the movable groove 702;

[0036] In this embodiment, both the forward threaded rod 705 and the reverse threaded rod 708 are rotatably connected and mounted on their corresponding bearing seats 706. The dimensions of the forward threaded rod 705 are adapted to the dimensions of the reverse threaded rod 708.

[0037] Specifically, it facilitates the support and limiting of the forward threaded rod 705 and the reverse threaded rod 708, and improves the stability of the forward threaded rod 705 and the reverse threaded rod 708 when they rotate.

[0038] In this embodiment, the pressure plate 712 has a threaded hole that matches the size of the screw 710. The top end of the screw 710 is fixedly connected to the turntable 711, and the bottom end of the screw 710 is fixedly connected to the pressure plate 712.

[0039] Specifically, by rotating the turntable 711, the screw 710 rotates, causing the pressure plate 712 to move vertically downward, pressing and fixing the tail end of the plate, thereby further improving the limiting and fixing effect of the plate.

[0040] The working principle and usage process of this utility model are as follows: When stamping a long sheet metal, the dual-axis output motor 707 in the limit mechanism 7 is first activated to drive the forward threaded rod 705 and the reverse threaded rod 708 to rotate synchronously. Then, the rotation of the forward threaded rod 705 and the reverse threaded rod 708 respectively drives the clamping plate 709 on the corresponding connecting block 703 to move horizontally along the movable groove 702 on the fixed frame 701, clamping and fixing the tail end of the sheet metal. Finally, by rotating the turntable 711, the screw 710 is rotated, causing the pressure plate 712 to move vertically. The downward displacement presses and fixes the tail end of the sheet metal, further improving the limiting and fixing effect of the sheet metal. When the stamping die 6 contacts the thicker sheet metal, the sleeve 502 in the buffer assembly 5 compresses the spring 506 on the outer surface of the damping rod 505, which in turn drives the limiting block 504 connected to the damping rod 505 to compress the buffer block 503 in the sleeve 502. At the same time, the buffer block 503 and the spring 506 are deformed by compression, which plays a multiple buffering role, weakening and reducing the instantaneous pressure of the sheet metal contacting the stamping die 6, thereby improving the buffering effect of the press.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A CNC turret punch press, comprising a worktable (1), characterized in that: The workbench (1) has a punch hole (2) in the middle of the top. The workbench (1) is equipped with a support (3) above the punch hole (2). The support (3) is equipped with a hydraulic drive device (4) in the middle of the top of the top. The hydraulic drive device (4) is equipped with a buffer assembly (5) at the bottom. The buffer assembly (5) is equipped with a stamping die (6) at the bottom. The workbench (1) is equipped with a limit mechanism (7) at the front end. The workbench (1) is equipped with a waste collection box (8) in the middle of the bottom. The limiting mechanism (7) includes a fixed frame (701), a movable groove (702) is provided on one side of the top of the fixed frame (701), a connecting block (703) is provided inside the movable groove (702), a movable plate (704) is provided at the bottom of the connecting block (703), a forward threaded rod (705) is provided inside the movable plate (704), a bearing seat (706) is provided at one end of the forward threaded rod (705), a dual-axis output motor (707) is provided at the other end of the forward threaded rod (705), a reverse threaded rod (708) is provided on one side of the dual-axis output motor (707), a clamping plate (709) is provided at the top of the connecting block (703), a screw (710) is provided in the middle of the top of the clamping plate (709), a turntable (711) is provided at the top of the screw (710), and a pressure plate (712) is provided at the bottom of the turntable (711).

2. A CNC turret punch press according to claim 1, characterized in that: The buffer assembly (5) includes a protective frame (501), a sleeve (502), a buffer block (503), a limiting block (504), a damping rod (505), and a spring (506). The sleeve (502) is provided at the top inside the protective frame (501). The buffer block (503) is provided inside the sleeve (502). The limiting block (504) is provided at the top of the buffer block (503). The damping rod (505) is provided at the top of the limiting block (504). The spring (506) is provided on the outer surface of the damping rod (505). The spring (506) is installed on the sleeve (502) by welding. The size of the spring (506) is adapted to the size of the damping rod (505).

3. A CNC turret punch press according to claim 2, characterized in that: The buffer block (503) is installed on the sleeve (502) by adhesive connection. The buffer block (503) is made of rubber. There are several groups of buffer blocks (503) arranged in a ring array.

4. A CNC turret punch press according to claim 2, characterized in that: The size of the limiting block (504) is adapted to the size of the sleeve (502). The limiting block (504) is fixedly installed on the damping rod (505). The limiting block (504) is slidably connected to the inner wall of the sleeve (502).

5. A CNC turret punch press according to claim 1, characterized in that: There are four sets of movable plates (704), and all four sets of movable plates (704) are installed on their corresponding threaded rods by threaded connection. The movable plates (704) and the connecting blocks (703) are integrated.

6. A CNC turret punch press according to claim 1, characterized in that: Both the forward threaded rod (705) and the reverse threaded rod (708) are mounted on their corresponding bearing seats (706) by a rotatable connection, and the dimensions of the forward threaded rod (705) are adapted to the dimensions of the reverse threaded rod (708).

7. A CNC turret punch press according to claim 1, characterized in that: The pressure plate (712) has a threaded hole that matches the size of the screw (710). The top end of the screw (710) is fixedly connected to the turntable (711), and the bottom end of the screw (710) is fixedly connected to the pressure plate (712).

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