Hardware numerical control bending machine with double limiting structures

Abstract

The utility model relates to the technical field of hardware machining equipment, in particular to a hardware numerical control bending machine with a double-limiting structure, which comprises a base, the top of the base is fixedly connected with the bottom end of a first limiting piece, the outer wall of the first limiting piece is connected with the inner wall of a bending piece in a sliding mode, and after a hardware is placed on a lower die, the bending piece is fixed on the lower die. A motor drives a two-way screw to rotate in a rotating groove, two sets of transmission blocks are driven to get close to each other under the action of threads, then two limiting plates are driven to get close to each other to limit hardware, a hydraulic cylinder drives a mounting rod to descend, and when the mounting rod descends, an upper die is driven to descend along the axis of a limiting rod; the upper die is further limited to prevent the upper die from deviating in the bending process, the hardware is bent through cooperation of the upper die and the lower die, it is guaranteed that the hardware cannot deviate due to uneven stress in the machining process through double limiting, the upper die is prevented from deviating in the bending process, and the bending accuracy is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of hardware processing equipment, specifically a CNC bending machine for hardware with a double limiting structure. Background Technology

[0002] Hardware refers to machine parts or components made of metal, as well as some small hardware products. They can be used alone or as auxiliary tools, such as hardware tools, hardware parts, daily hardware, building hardware, and security products. Most small hardware products are not final consumer goods, but rather supporting products, semi-finished products, and tools used in the production process of industrial manufacturing. Only a small portion of daily hardware products are essential consumer tools for people's lives.

[0003] Currently, most hardware parts on the market require manual support during processing, which is inconvenient, wastes manpower, and results in low production efficiency. Without manual support, there is a lack of limiting mechanisms, preventing the hardware parts from shifting due to uneven force during processing. Utility Model Content

[0004] The purpose of this utility model is to provide a CNC bending machine for hardware parts with a double limiting structure, so as to solve the problem mentioned in the background art that the hardware parts will not shift due to uneven force during processing. To achieve the above objective, this utility model provides the following technical solution: a CNC bending machine for hardware parts with a double limiting structure, including a base, the top of the base being fixedly connected to the bottom end of a first limiting member, the outer wall of the first limiting member being slidably connected to the inner wall of the bending part, the top of the base near the right side being fixedly connected to the bottom of a mold part, and the bending part being composed of a hydraulic cylinder, a mounting rod, an upper mold, a connecting rod, and a limiting ring.

[0005] The inner wall of the base is rotatably connected to the outer walls at both ends of the adjusting member. The outer wall of the adjusting member is threadedly connected to the inner wall of the second limiting member. The outer wall of the second limiting member is slidably connected to the inner wall of the base. The second limiting member includes a limiting plate, a transmission block, and a guide strip.

[0006] Preferably, the base consists of a support column, a worktable, a limiting groove, a guide groove, and a rotating groove. The top of the support column is fixedly connected to the bottom of the worktable, and a limiting groove is provided at the top center of the worktable. A guide groove is provided at the top of the worktable near the limiting groove, and rotating grooves are provided on both the front and back of the limiting groove.

[0007] Preferably, the first limiting component includes a U-shaped support plate and a limiting rod. The inner top walls of the U-shaped support plate near the front and back are fixedly connected to the top of the limiting rod, and the bottom of the U-shaped support plate is fixedly connected to the top of the worktable near the right side. The bottom end of the limiting rod is fixedly connected to the top of the worktable near the U-shaped support plate.

[0008] Preferably, the output end of the hydraulic cylinder is fixedly connected to the top end of the mounting rod, and the bottom end of the mounting rod is fixedly mounted with an upper mold. The outer wall of the mounting rod is fixedly welded to the outer wall of one end of the connecting rod, and the outer wall of the other end of the connecting rod is fixedly welded to the outer wall of the limiting ring. The outer wall of the hydraulic cylinder is fixedly connected to the inner top wall of the center of the U-shaped support plate by bolts, and the inner wall of the limiting ring is slidably connected to the outer wall of the limiting rod.

[0009] Preferably, the mold component includes a fixed block, a lower mold, a slot, a slide, a working cavity, a shifting groove, a spring, a connecting block, a connecting post, an insert block, and a lever. The inner sidewall of the fixed block is movably abutting against the outer sidewall of the lower mold, and slots are provided on both sides of the lower mold. A slide is provided on the side of the fixed block near the lower mold, and a working cavity is provided on the inner wall of the fixed block near the slide. A shifting groove is provided at the top of the slide. One end of the spring is fixedly connected to the inner wall of the working cavity. The other end of the spring is fixedly connected to the inner wall of the connecting block. The outer wall of the connecting block away from the spring is fixedly welded to the outer wall of the insert block. The top of the insert block is fixedly connected to the bottom end of the lever, and the outer wall of the connecting block is slidably connected to the inner wall of the working cavity. The outer walls of the connecting post and the insert block are slidably connected to the inner wall of the slide. The outer wall of the insert block away from the connecting post is movably inserted into the inner wall of the slot. The bottom of the fixed block is fixedly connected to the top of the worktable near the right side.

[0010] Preferably, the adjusting component consists of a mounting base, a motor, and a bidirectional screw. The inner wall of the mounting base is fixedly connected to the outer wall of the motor by bolts, and the output end of the motor is fixedly connected to one end of the bidirectional screw by a coupling. The front of the mounting base is fixedly connected to the back of the worktable, and the outer walls of both ends of the bidirectional screw are rotatably connected to the inner wall of the rotating groove.

[0011] Preferably, the bottom of the center of the limiting plate is fixedly connected to the top of the transmission block, and the bottom of the limiting plate away from the center is fixedly connected to the top of the guide strip. The limiting plate, transmission block and guide strip are provided in two sets, and the outer walls of the two sets of transmission blocks are slidably connected to the inner walls of the limiting groove. The outer walls of the two sets of guide strips are slidably connected to the inner walls of the guide groove, and the inner walls of the two sets of transmission blocks are threadedly connected to the outer walls of the bidirectional screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, after the hardware is placed on the lower die, a double-acting screw driven by a motor rotates in the slot. Under the action of the screw, two sets of transmission blocks move closer to each other, which in turn moves two limiting plates closer to each other to limit the hardware. A hydraulic cylinder drives the mounting rod to descend, and when the mounting rod descends, it drives the upper die to descend along the axis of the limiting rod, further limiting the upper die to prevent it from shifting during bending. The upper and lower dies work together to bend the hardware. The double limiting ensures that the hardware will not shift due to uneven force during processing, and also prevents the upper die from shifting during bending, thus ensuring the accuracy of bending.

[0014] In this invention, by pushing the lever, the insert block is slid into the groove, causing the insert block to exit the slot, which allows the lower mold to be replaced. After replacement, the lower mold is placed in the fixing block, and the insert block is extended from the groove into the slot by the spring force to lock the lower mold. This facilitates the replacement of the lower mold and enables the equipment to easily adapt to the processing needs of hardware parts of different specifications and shapes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This is a cross-sectional view of the mold component in this utility model.

[0019] In the diagram: 1. Base; 101. Support column; 102. Workbench; 103. Limiting groove; 104. Guide groove; 105. Rotary groove; 2. First limiting component; 201. U-shaped support plate; 202. Limiting rod; 3. Bending component; 301. Hydraulic cylinder; 302. Mounting rod; 303. Upper mold; 304. Connecting rod; 305. Limiting ring; 4. Mold component; 401. Fixing block; 402. Lower mold; 403. Slot; 404. Slide groove; 405. Working cavity; 406. Actuating groove; 407. Spring; 408. Connecting block; 409. Connecting column; 410. Insert block; 411. Actuating rod; 5. Adjusting component; 501. Mounting seat; 502. Motor; 503. Bidirectional screw; 6. Second limiting component; 601. Limiting plate; 602. Transmission block; 603. Guide bar. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a CNC bending machine for hardware parts with a double limiting structure, including a base 1, the top of the base 1 being fixedly connected to the bottom of the first limiting member 2, the outer wall of the first limiting member 2 being slidably connected to the inner wall of the bending part 3, the top of the base 1 near the right side being fixedly connected to the bottom of the mold part 4, and the bending part 3 being composed of a hydraulic cylinder 301, an mounting rod 302, an upper mold 303, a connecting rod 304, and a limiting ring 305.

[0022] The inner wall of the base 1 is rotatably connected to the outer walls at both ends of the adjusting member 5. The outer wall of the adjusting member 5 is threadedly connected to the inner wall of the second limiting member 6. The outer wall of the second limiting member 6 is slidably connected to the inner wall of the base 1. The second limiting member 6 includes a limiting plate 601, a transmission block 602, and a guide bar 603.

[0023] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the base 1 consists of a support column 101, a worktable 102, a limiting groove 103, a guide groove 104, and a rotating groove 105. The top of the support column 101 is fixedly connected to the bottom of the worktable 102, and a limiting groove 103 is provided at the top center of the worktable 102. A guide groove 104 is provided at the top of the worktable 102 near the limiting groove 103, and rotating grooves 105 are provided on both the front and back of the limiting groove 103. The support column 101 provides stable support for the device.

[0024] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first limiting member 2 includes a U-shaped support plate 201 and a limiting rod 202. The inner top walls of the U-shaped support plate 201 near the front and back are fixedly connected to the top of the limiting rod 202, and the bottom of the U-shaped support plate 201 is fixedly connected to the top of the worktable 102 near the right side. The bottom end of the limiting rod 202 is fixedly connected to the top of the worktable 102 near the top of the U-shaped support plate 201.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the output end of the hydraulic cylinder 301 is fixedly connected to the top end of the mounting rod 302, and the bottom end of the mounting rod 302 is fixedly mounted with the upper mold 303. The outer wall of the mounting rod 302 is fixedly welded to the outer wall of one end of the connecting rod 304, and the outer wall of the other end of the connecting rod 304 is fixedly welded to the outer wall of the limiting ring 305. The outer wall of the hydraulic cylinder 301 is fixedly connected to the inner top wall of the center of the U-shaped support plate 201 by bolts, and the inner wall of the limiting ring 305 is slidably connected to the outer wall of the limiting rod 202. The hydraulic cylinder 301 drives the mounting rod 302 to descend. When the mounting rod 302 descends, it drives the upper mold 303 to descend along the axis of the limiting rod 202, further limiting and preventing the upper mold 303 from shifting when bending.

[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, mold component 4 includes a fixing block 401, a lower mold 402, a slot 403, a slide 404, a working cavity 405, a shifting groove 406, a spring 407, a connecting block 408, a connecting post 409, an insert block 410, and a shifting rod 411. The inner wall of the fixing block 401 is in movable contact with the outer wall of the lower mold 402, and slots 403 are provided on both sides of the lower mold 402. A slide 404 is provided on the side of the fixing block 401 near the lower mold 402, and a working cavity 405 is provided on the inner wall of the fixing block 401 near the slide 404. A shifting groove 406 is provided on the top of the slide 404, and one end of the working cavity 405 is fixedly connected to the inner wall of the connecting block 408. The other end of the spring 407 is fixedly connected to the inner wall of the connecting block 408, and the connecting block 408 is located away from the outer wall of the spring 407. The outer wall of the insert 410 is fixedly welded to the top of the lever 411. The top of the insert 410 is fixedly connected to the bottom of the lever 411. The outer wall of the connecting block 408 is slidably connected to the inner wall of the working cavity 405. The outer walls of the connecting post 409 and the insert 410 are slidably connected to the inner wall of the slide groove 404. The outer wall of the insert 410 away from the connecting post 409 is movably inserted into the inner wall of the slot 403. The bottom of the fixing block 401 is fixedly connected to the top of the worktable 102 near the right side. By pushing the lever 411, the insert 410 is driven to slide into the slide groove 404, so that the insert 410 exits the slot 403. The lower mold 402 can be replaced. After replacement, the lower mold 402 is placed into the fixing block 401. The insert 410 is extended from the slide groove 404 into the slot 403 by the elastic force of the spring 407 to lock the lower mold 402.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the adjusting component 5 consists of a mounting base 501, a motor 502, and a bidirectional screw 503. The inner wall of the mounting base 501 is fixedly connected to the outer wall of the motor 502 by bolts, and the output end of the motor 502 is fixedly connected to one end of the bidirectional screw 503 by a coupling. The front of the mounting base 501 is fixedly connected to the back of the worktable 102, and the outer walls of both ends of the bidirectional screw 503 are rotatably connected to the inner wall of the rotating groove 105.

[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the center of the limiting plate 601 is fixedly connected to the top of the transmission block 602, and the bottom of the limiting plate 601 away from the center is fixedly connected to the top of the guide strip 603. The limiting plate 601, the transmission block 602 and the guide strip 603 are all provided in two sets. The outer walls of the two sets of transmission blocks 602 are slidably connected to the inner walls of the limiting groove 103. The outer walls of the two sets of guide strips 603 are slidably connected to the inner walls of the guide groove 104. The inner walls of the two sets of transmission blocks 602 are threadedly connected to the outer walls of the bidirectional screw 503. The bidirectional screw 503 is driven by the motor 502 to rotate in the rotating groove 105. Under the action of the thread, the two sets of transmission blocks 602 are driven to move closer to each other, thereby driving the two limiting plates 601 to move closer to each other to limit the hardware.

[0029] The usage and advantages of this utility model: The working process of this CNC bending machine for hardware parts with a double-limiting structure is as follows:

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, after the hardware is placed on the lower mold 402, the double-acting screw 503 is driven by the motor 502 to rotate in the rotating groove 105. Under the action of the screw, the two sets of transmission blocks 602 move closer to each other, which in turn moves the two limiting plates 601 closer to each other to limit the hardware. The hydraulic cylinder 301 drives the mounting rod 302 to descend. When the mounting rod 302 descends, it drives the upper mold 303 to descend along the axis of the limiting rod 202, further limiting and preventing the upper mold 303 from deviating during bending. The upper mold 303 and the lower mold 402 cooperate to bend the hardware. The double limiting ensures that the hardware is bent. During processing, the upper die 303 will not shift due to uneven force, and the upper die 303 will not shift during bending, ensuring the accuracy of bending. By pushing the lever 411, the insert block 410 is driven to slide into the slide groove 404, so that the insert block 410 exits the slot 403, and the lower die 402 can be replaced. After replacement, the lower die 402 is placed in the fixing block 401. The insert block 410 is extended from the slide groove 404 into the slot 403 by the elastic force of the spring 407 to lock the lower die 402, which facilitates the replacement of the lower die 402 and enables the equipment to easily adapt to the processing needs of hardware parts of different specifications and shapes.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hardware numerical control bending machine with double limiting structure, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the bottom of the first limiting member (2), the outer wall of the first limiting member (2) is slidably connected to the inner wall of the bending member (3), the top of the base (1) near the right side is fixedly connected to the bottom of the mold member (4), and the bending member (3) is composed of a hydraulic cylinder (301), a mounting rod (302), an upper mold (303), a connecting rod (304), and a limiting ring (305); The inner wall of the base (1) is rotatably connected to the outer walls of the two ends of the adjusting member (5). The outer wall of the adjusting member (5) is threadedly connected to the inner wall of the second limiting member (6). The outer wall of the second limiting member (6) is slidably connected to the inner wall of the base (1). The second limiting member (6) includes a limiting plate (601), a transmission block (602), and a guide strip (603).

2. The hardware numerical control bending machine with double limiting structure according to claim 1, characterized in that: The base (1) is composed of a support column (101), a worktable (102), a limiting groove (103), a guide groove (104), and a rotating groove (105). The top of the support column (101) is fixedly connected to the bottom of the worktable (102), and a limiting groove (103) is opened at the top of the center of the worktable (102). A guide groove (104) is opened at the top of the worktable (102) near the limiting groove (103), and rotating grooves (105) are opened on both the front and back of the limiting groove (103).

3. The hardware numerical control bending machine with double limiting structure according to claim 2, characterized in that: The first limiting member (2) includes a U-shaped support plate (201) and a limiting rod (202). The inner top walls of the U-shaped support plate (201) near the front and back are fixedly connected to the top of the limiting rod (202), and the bottom of the U-shaped support plate (201) is fixedly connected to the top of the worktable (102) near the right side. The bottom end of the limiting rod (202) is fixedly connected to the top of the worktable (102) near the top of the U-shaped support plate (201).

4. The numerically controlled bending machine with double limiting structure for hardware according to claim 3, characterized in that: The output end of the hydraulic cylinder (301) is fixedly connected to the top end of the mounting rod (302), and the bottom end of the mounting rod (302) is fixedly mounted with an upper mold (303). The outer wall of the mounting rod (302) is fixedly welded to the outer wall of one end of the connecting rod (304), and the outer wall of the other end of the connecting rod (304) is fixedly welded to the outer wall of the limiting ring (305). The outer wall of the hydraulic cylinder (301) is fixedly connected to the inner top wall of the center of the U-shaped support plate (201) by bolts, and the inner wall of the limiting ring (305) is slidably connected to the outer wall of the limiting rod (202).

5. The numerically controlled bending machine for hardware with double limiting structure according to claim 2, characterized in that: The mold component (4) includes a fixing block (401), a lower mold (402), a slot (403), a slide (404), a working cavity (405), a shifting groove (406), a spring (407), a connecting block (408), a connecting post (409), an insert (410), and a lever (411). The inner wall of the fixing block (401) is in movable contact with the outer wall of the lower mold (402), and slots (403) are provided on both sides of the lower mold (402). A slide (404) is provided on the side of the fixing block (401) near the lower mold (402), and a working cavity (405) is provided on the inner wall of the fixing block (401) near the slide (404). A shifting groove (406) is provided on the top of the slide (404), and a working cavity (405) is provided on the inner wall of the working cavity (407). 5) The inner wall of the spring (407) is fixedly connected to one end of the spring (407), the other end of the spring (407) is fixedly connected to the inner wall of the connecting block (408), and the outer wall of the connecting block (408) away from the spring (407) is fixedly welded to the outer wall of the insert (410). The top of the insert (410) is fixedly connected to the bottom of the lever (411), and the outer wall of the connecting block (408) is slidably connected to the inner wall of the working cavity (405). The outer walls of the connecting column (409) and the insert (410) are slidably connected to the inner wall of the slide groove (404), and the outer wall of the insert (410) away from the connecting column (409) is movably inserted into the inner wall of the slot (403). The bottom of the fixing block (401) is fixedly connected to the top of the worktable (102) near the right side.

6. The numerically controlled bending machine for hardware with double limiting structure according to claim 2, characterized in that: The adjusting component (5) consists of a mounting base (501), a motor (502), and a bidirectional screw (503). The inner wall of the mounting base (501) is fixedly connected to the outer wall of the motor (502) by bolts, and the output end of the motor (502) is fixedly connected to one end of the bidirectional screw (503) by a coupling. The front of the mounting base (501) is fixedly connected to the back of the workbench (102), and the outer walls at both ends of the bidirectional screw (503) are rotatably connected to the inner wall of the rotating groove (105).

7. The numerically controlled bending machine for hardware with double limiting structure according to claim 6, characterized in that: The bottom of the center of the limiting plate (601) is fixedly connected to the top of the transmission block (602), and the bottom of the limiting plate (601) away from the center is fixedly connected to the top of the guide strip (603). The limiting plate (601), the transmission block (602) and the guide strip (603) are all provided in two sets. The outer walls of the two sets of transmission blocks (602) are slidably connected to the inner wall of the limiting groove (103). The outer walls of the two sets of guide strips (603) are slidably connected to the inner wall of the guide groove (104). The inner walls of the two sets of transmission blocks (602) are threadedly connected to the outer wall of the bidirectional screw (503).

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