Numerical control bending machine for high-precision machining

Abstract

The utility model discloses a numerical control bending machine for high accuracy processing, including mounting bracket, the vertical setting cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a CNC bending machine for high-precision machining. Background Technology

[0002] A CNC bending machine is a device that uses CNC technology to precisely bend metal sheets. With the rapid development of the manufacturing industry and the continuous improvement of product quality requirements, high-precision machining has become an important trend in modern manufacturing technology, and CNC bending machines are key equipment for metal sheet processing.

[0003] A search revealed a utility model patent with Chinese patent publication number CN214161091U, which discloses a CNC bending machine for seismic bracing. The machine includes a worktable, an upper template mounted on the worktable for pressing sheet metal, and a lower template mounted on the worktable. The worktable has a horizontally opening mounting groove that fits into the lower template. Limiting grooves are horizontally opening on both sides of the mounting groove. A guide rod with an extension direction consistent with the extension direction of the lower template is rotatably connected to the lower template. Mounting strips are evenly mounted on the guide rod. A sliding groove for the mounting strips to rotate is provided on the lower template.

[0004] The aforementioned device increases replacement efficiency by incorporating a quick-release structure. However, to ensure structural stability, the molds are generally quite heavy, and the replacement process takes a considerable amount of time, which is not conducive to improving work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a CNC bending machine for high-precision machining, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC bending machine for high-precision machining, comprising a mounting frame, wherein a vertically arranged cylinder is fixedly mounted on the top outer wall of the mounting frame, and two symmetrically arranged support components are installed inside the mounting frame, the two support components being respectively fixedly mounted on the bottom wall of the mounting frame and the output end of the cylinder. Each support component includes a support base fixedly connected to the bottom wall of the mounting frame, and a horizontally arranged mounting column is rotatably connected inside the support base. A gear ring is coaxially fixed on the outer circumference of the mounting column, and a horizontally arranged motor is fixedly mounted on one side of the outer wall of the support base. A gear that meshes with the gear ring is coaxially fixed on the output end of the motor. The support component also includes a reinforcing structure, which includes two vertical plates, a second cylinder, a push plate, two guide rods, two positioning frames, several slots, and four springs.

[0007] It can quickly adjust the required bending die to the processing position as needed and maintain a stable state. The changeover process is quick and easy, which helps to improve work efficiency. The control system controls a cylinder two on the outside of a vertical plate. Cylinder two drives the push plate to move closer to the positioning frame. The spring connected to the positioning frame begins to shorten under stress, and the two positioning frames will move away from each other until they are no longer locked in the slots. The mounting column is no longer restricted. The control motor drives the gear to rotate, and the gear drives the gear ring that meshes with it to rotate. The gear ring drives the mounting column to rotate synchronously until the required lower die on the outside of the mounting column is facing directly upwards and then stops rotating. Then cylinder two extends again, and the spring drives the two positioning frames to lock into the slots at both ends of the mounting column, ensuring that the mounting column is more stable.

[0008] As a further preferred embodiment of this technical solution, both vertical plates are fixedly connected to the two ends of the bottom wall of the support base. The second cylinder is fixedly installed on the upper part of the outer wall of one of the vertical plates. The push plate is fixedly connected to the output end of the second cylinder. Both guide rods are fixedly connected inside the two vertical plates. The push plate is slidably sleeved on the outside of the two guide rods. Both vertical plates are vertically arranged, while the second cylinder, the push plate, and the two guide rods are horizontally arranged.

[0009] As a further preferred embodiment of this technical solution, both positioning frames are slidably connected to the two sides of the support base, and several slots are divided into two groups and respectively opened at the mounting column position. The two positioning frames are slidably connected to the inside of two slots on both sides, and the four springs are divided into two groups and respectively fixedly connected to the inner walls on both sides of the support base, and the two groups of springs are respectively fixedly connected to the two positioning frames.

[0010] As a further preferred embodiment of this technical solution, the outer circumference of the two mounting columns is respectively disassembled and installed with several lower molds and upper molds that are evenly distributed, and the models of the lower molds and upper molds are different. The positions of the lower molds and upper molds correspond one-to-one with the positions of several slots at one end of the mounting column.

[0011] As a further preferred embodiment of this technical solution, a positioning component is installed on the outer side of the mounting frame. The positioning component includes a mounting plate fixedly connected to the middle position of the outer wall of one end of the mounting frame. A horizontally arranged lead screw is threaded inside the mounting plate. A horizontally arranged positioning plate is rotatably connected to the end of the lead screw near the internal space of the mounting frame. The positioning plate is located on the side of the uppermost lower mold of the lower mounting column. Two horizontally arranged limiting rods are slidably connected inside the mounting plate, and the two limiting rods are located on both sides of the lead screw. The ends of the two limiting rods away from the mounting plate are fixedly connected to the positioning plate.

[0012] Before processing, adjust the position of the positioning plate according to the processing requirements of the product so that the material stops when it comes into contact with the positioning plate. This helps to ensure the consistency of product processing. By rotating the screw through the handle, the screw will move along the mounting plate that is threaded to it. The positioning plate connected to it, in conjunction with the limiting rod, will move synchronously in the horizontal direction, which helps to improve the adaptability of the device.

[0013] As a further preferred embodiment of this technical solution, the thread helix angle of the external thread of the lead screw is smaller than the equivalent friction angle.

[0014] As a further preferred embodiment of this technical solution, the motor is a servo motor.

[0015] This utility model provides a CNC bending machine for high-precision machining, which has the following advantages: (1) By setting up a support component, this utility model can quickly adjust the required bending mold to the processing position as needed and maintain a stable state. The replacement process is quick and easy, which is conducive to improving work efficiency. By controlling the control system, the cylinder two on the outside of the vertical plate is controlled. The cylinder two drives the push plate to move closer to the positioning frame. The spring connected to the positioning frame begins to shorten under force, and the two positioning frames will move away from each other until they are no longer stuck in the slots. The mounting column is no longer restricted. The control motor drives the gear to rotate, and the gear can drive the gear ring that meshes with it to rotate. The gear ring drives the mounting column to rotate synchronously until the required lower mold on the outside of the mounting column is facing directly upwards and then stops rotating. Then the cylinder two extends again, and the spring can drive the two positioning frames to be stuck in the slots at both ends of the mounting column respectively, ensuring that the mounting column is more stable.

[0016] (2) By setting up a positioning component, the position of the positioning plate can be adjusted according to the processing requirements of the product before processing, so that the material stops contacting the positioning plate, which helps to ensure the consistency of product processing. By driving the screw to rotate through the handle, the screw will move along the mounting plate that is threaded to it. The positioning plate connected to it, in conjunction with the limiting rod, will move synchronously in the horizontal direction, which helps to improve the adaptability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model; Figure 2 This is a schematic diagram of the overall second-view structure of this utility model; Figure 3 This is an enlarged structural diagram of the support component of this utility model; Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; In the diagram: 1. Mounting bracket; 2. Cylinder 1; 3. Lower mold; 4. Upper mold; 5. Support assembly; 6. Positioning assembly; 501. Support base; 502. Mounting column; 503. Gear ring; 504. Motor; 505. Gear; 506. Vertical plate; 507. Cylinder 2; 508. Push plate; 509. Guide rod; 510. Positioning bracket; 511. Slot; 512. Spring; 601. Mounting plate; 602. Limiting rod; 603. Positioning plate; 604. Lead screw. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This utility model provides a technical solution: such as Figure 2 and Figure 3 As shown in this embodiment, a CNC bending machine for high-precision machining includes a mounting frame 1. A vertically arranged cylinder 2 is fixedly mounted on the top outer wall of the mounting frame 1. Two symmetrically arranged support components 5 are installed inside the mounting frame 1. The two support components 5 are respectively fixedly mounted on the bottom wall of the mounting frame 1 and the output end of the cylinder 2. The support component 5 includes a support seat 501 fixedly connected to the bottom wall of the mounting frame 1. A horizontally arranged mounting column 502 is rotatably connected inside the support seat 501. A gear ring 503 is coaxially fixed on the outer circumference of the mounting column 502. A horizontally arranged motor 504 is fixedly mounted on one side of the outer wall of the support seat 501. A gear 505 that meshes with the gear ring 503 is coaxially fixed on the output end of the motor 504. The support component 5 also includes a reinforcing structure, which includes two vertical plates 506, a cylinder 2 507, a push plate 508, two guide rods 509, two positioning frames 510, several slots 511, and four springs 512.

[0020] Both vertical plates 506 are fixedly connected to both ends of the bottom wall of the support base 501. Cylinder 2 507 is fixedly installed on the upper part of the outer wall of one end of one of the vertical plates 506. Push plate 508 is fixedly connected to the output end of cylinder 2 507. Both guide rods 509 are fixedly connected inside the two vertical plates 506. Push plate 508 is slidably sleeved on the outside of the two guide rods 509. Both vertical plates 506 are vertically arranged. Cylinder 2 507, push plate 508 and two guide rods 509 are horizontally arranged.

[0021] Two positioning frames 510 are slidably connected to both sides of the support base 501. Several slots 511 are divided into two groups and opened at the mounting column 502. The two positioning frames 510 are slidably connected to the inside of two slots 511 on both sides. Four springs 512 are divided into two groups and fixedly connected to the inner walls on both sides of the support base 501. The two groups of springs 512 are fixedly connected to the two positioning frames 510 respectively.

[0022] The control system controls cylinder 507 on the outside of vertical plate 506. Cylinder 507 drives push plate 508 to move closer to positioning frame 510. Spring 512 connected to positioning frame 510 begins to shorten under stress, and the two positioning frames 510 move away from each other until they are no longer engaged in slot 511. Mounting column 502 is no longer restricted. Control motor 504 drives gear 505 to rotate. Gear 505 drives gear ring 503 to rotate. Gear ring 503 drives mounting column 502 to rotate synchronously until the required lower mold 3 on the outside of mounting column 502 is facing directly upwards and stops rotating. Then cylinder 507 extends again, and spring 512 drives the two positioning frames 510 to engage in slot 511 at both ends of mounting column 502, ensuring that mounting column 502 is more stable.

[0023] like Figure 1 As shown in Figure 2, several lower molds 3 and upper molds 4 are equidistantly distributed on the outer circumference of the two mounting columns 502 by bolts. The models of the lower molds 3 and upper molds 4 are different. The positions of the lower molds 3 and upper molds 4 correspond one-to-one with the positions of several slots 511 at one end of the mounting column 502. When the upper mold 4 is driven to merge with the lower mold 3, the plate can be precisely bent into a specified angle.

[0024] like Figure 2 and Figure 4 As shown, a positioning component 6 is installed on the outside of the mounting frame 1. The positioning component 6 includes a mounting plate 601 fixedly connected to the middle position of the outer wall of one end of the mounting frame 1. A horizontally arranged lead screw 604 is threaded inside the mounting plate 601. A horizontally arranged positioning plate 603 is rotatably connected to the end of the lead screw 604 near the internal space of the mounting frame 1. The positioning plate 603 is located on the side of the uppermost lower mold 3 of the lower mounting column 502. Two horizontally arranged limiting rods 602 are slidably connected inside the mounting plate 601. The two limiting rods 602 are located on both sides of the lead screw 604. The ends of the two limiting rods 602 away from the mounting plate 601 are fixedly connected to the positioning plate 603.

[0025] Before processing, the position of the positioning plate 603 is adjusted according to the processing requirements of the product so that the material stops contacting the positioning plate 603, which helps to ensure the consistency of product processing. By driving the screw 604 to rotate through the handle, the screw 604 will move along the mounting plate 601 that is threaded to it. The positioning plate 603 connected to it, in conjunction with the limiting rod 602, will move synchronously in the horizontal direction, which helps to improve the adaptability of the device.

[0026] like Figure 4 As shown, the thread helix angle of the external thread of the lead screw 604 is less than the equivalent friction angle, giving it a self-locking property, which in turn ensures that the position of the positioning plate 603 connected to it will not change arbitrarily due to external forces.

[0027] like Figure 3 As shown, motor 504 is a servo motor, which has high precision, making the adjustment process accurate enough.

[0028] This utility model provides a CNC bending machine for high-precision machining, and its specific working principle is as follows: When the device is working, the commonly used molds are first fixed to the outside of the mounting column 502. If the model of the lower mold 3 and upper mold 4 currently in use does not meet the requirements, the control system controls the cylinder 507 on the outside of the vertical plate 506. The cylinder 507 drives the push plate 508 to move closer to the positioning frame 510. The spring 512 connected to the positioning frame 510 begins to shorten under the force, and the two positioning frames 510 will move away from each other until they are no longer locked in the slot 511. The mounting column 502 is no longer restricted. The control motor 504 drives the gear 505 to rotate. The gear 505 can drive the gear ring 503 that meshes with it to rotate. The gear ring 503 drives the mounting column 502 to rotate synchronously until the required lower mold 3 on the outside of the mounting column 502 is facing directly upwards and stops rotating. Then the cylinder 507 extends again, and the spring 512 can drive the two positioning frames 510 to lock into the slots 511 at both ends of the mounting column 502 respectively, ensuring that the mounting column 502 is more stable.

[0029] Before processing, the position of the positioning plate 603 is adjusted according to the processing requirements of the product so that the material stops contacting the positioning plate 603, which helps to ensure the consistency of product processing. By driving the screw 604 to rotate through the handle, the screw 604 will move along the mounting plate 601 that is threaded to it. The positioning plate 603 connected to it, in conjunction with the limiting rod 602, will move synchronously in the horizontal direction, which helps to improve the adaptability of the device.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC bending machine for high-precision machining, comprising a mounting frame (1), characterized in that: A vertically arranged cylinder 1 (2) is fixedly installed on the top outer wall of the mounting frame (1). Two symmetrically arranged support components (5) are installed inside the mounting frame (1). The two support components (5) are respectively fixedly installed on the bottom wall of the mounting frame (1) and the output end of the cylinder 1 (2). The support component (5) includes a support seat (501) fixedly connected to the bottom wall of the mounting frame (1). A horizontally arranged mounting column (502) is rotatably connected inside the support seat (501). The outer circumference of the mounting column (502) is the same as that of the cylinder 1 (2). A gear ring (503) is fixed to the shaft. A horizontally arranged motor (504) is fixedly installed on the outer wall of one side of the support base (501). A gear (505) that meshes with the gear ring (503) is fixed coaxially at the output end of the motor (504). The support assembly (5) also includes a reinforcing structure, which includes two vertical plates (506), a second cylinder (507), a push plate (508), two guide rods (509), two positioning frames (510), several slots (511), and four springs (512).

2. A CNC bending machine for high-precision machining according to claim 1, characterized in that: Both vertical plates (506) are fixedly connected to the two ends of the bottom wall of the support base (501). The second cylinder (507) is fixedly installed on the upper part of the outer wall of one of the vertical plates (506). The push plate (508) is fixedly connected to the output end of the second cylinder (507). Both guide rods (509) are fixedly connected inside the two vertical plates (506). The push plate (508) is slidably sleeved on the outside of the two guide rods (509). Both vertical plates (506) are vertically arranged. The second cylinder (507), the push plate (508) and the two guide rods (509) are horizontally arranged.

3. A CNC bending machine for high-precision machining according to claim 1, characterized in that: Both positioning frames (510) are slidably connected to both sides of the support base (501). Several slots (511) are divided into two groups and opened at the mounting column (502). The two positioning frames (510) are slidably connected to the inside of two slots (511) on both sides. The four springs (512) are divided into two groups and fixedly connected to the inner walls on both sides of the support base (501). The two groups of springs (512) are fixedly connected to the two positioning frames (510) respectively.

4. A CNC bending machine for high-precision machining according to claim 1, characterized in that: The outer circumference of the two mounting columns (502) is respectively disassembled and installed with several lower molds (3) and upper molds (4) distributed at equal distances. The models of the lower molds (3) and upper molds (4) are different. The positions of the lower molds (3) and upper molds (4) correspond one-to-one with the positions of several slots (511) at one end of the mounting column (502).

5. A CNC bending machine for high-precision machining according to claim 1, characterized in that: A positioning component (6) is installed on the outside of the mounting frame (1). The positioning component (6) includes a mounting plate (601) fixedly connected to the middle position of the outer wall of one end of the mounting frame (1). A horizontally arranged lead screw (604) is threaded inside the mounting plate (601). A horizontally arranged positioning plate (603) is rotatably connected to one end of the lead screw (604) near the internal space of the mounting frame (1). The positioning plate (603) is located on the side of the uppermost lower mold (3) of the lower mounting column (502). Two horizontally arranged limiting rods (602) are slidably connected inside the mounting plate (601). The two limiting rods (602) are located on both sides of the lead screw (604). The ends of the two limiting rods (602) away from the mounting plate (601) are fixedly connected to the positioning plate (603).

6. A CNC bending machine for high-precision machining according to claim 5, characterized in that: The thread helix angle of the external thread of the lead screw (604) is less than the equivalent friction angle.

7. A CNC bending machine for high-precision machining according to claim 1, characterized in that: The motor (504) is a servo motor.

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