A metal processing cutting device with a limiting structure
By introducing positioning and limiting devices into the cutting equipment, and utilizing the cooperation of springs and threaded rings, the workpiece can be quickly clamped and its angle adjusted, solving the problem of inconvenient workpiece fixing in existing equipment, and improving cutting efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN HUAYANG PRECISION BEARING MFG CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
Existing metal processing cutting equipment requires adjusting the position of the clamping block before adjusting the position of the workpiece when fixing it, which makes operation inconvenient and the cutting process inefficient.
A cutting device with a limiting structure was designed. By using a spring to push the positioning block in the positioning device to quickly adapt to the size and position of the workpiece, and fixing it by rotating the threaded ring, the workpiece angle can be adjusted in combination with the limiting device to achieve rapid clamping and positioning.
It improves the convenience of workpiece fixing and the efficiency of cutting process, avoids deformation of clamping structure and workpiece lifting, and enhances the convenience and accuracy of operation.
Smart Images

Figure CN224273515U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field, specifically a metal processing cutting device with a limiting structure. Background Technology
[0002] Metal workpieces are usually processed using cutting equipment, which can cut the workpieces into the required size and shape.
[0003] When using a cutting device, place the workpiece on the cutting table of the cutting device, and press and adjust the arm of the cutting device to make the cutting blade contact the workpiece and cut it.
[0004] When using cutting equipment, fixing a workpiece requires first adjusting the position of the clamping block, then adjusting the placement of the workpiece, and finally moving the clamping block to secure the workpiece. This makes it inconvenient to fix the workpiece when using the cutting equipment, resulting in low efficiency of the cutting process. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a metal processing cutting device with a limiting structure, which solves the problem that when fixing a workpiece, it is necessary to first adjust the position of the clamping block, then adjust the placement position of the workpiece, and then move the clamping block to fasten the workpiece, which makes it inconvenient to fix the workpiece when using the cutting device to cut the workpiece and the cutting process is inefficient.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a metal processing cutting device with a limiting structure, comprising a base, an arm rotatably connected to the top of the base via a rotating shaft, a torsion spring for limiting the angle of the arm at the top of the base being provided on the outer side of the rotating shaft connecting the arm and the base, a servo motor being provided on one side of the arm, a cutting blade being rotatably provided on one side of the arm, the output end of the servo motor being connected to one side of the cutting blade via a coupling, a cutting groove being provided on the outer surface of the base, a positioning device being provided on the outer surface of the base, the positioning device comprising two rectangular blocks, the bottom end of the rectangular blocks being fixedly connected to the outer surface of the base, two round rods being slidably connected to the inner wall of one of the rectangular blocks, a positioning block being fixedly connected to one end of the round rods, two L-shaped blocks being fixedly connected to the outer surface of the rectangular block near the round rods, a spring being provided on the outer surface of the round rods, the two ends of the springs being fixedly connected to one side of the positioning block and one side of the rectangular block respectively, the round rods sliding on the inner wall of the L-shaped blocks, and a threaded ring being threadedly connected to the outer surface of the round rods, the threaded ring being located between the rectangular block and the L-shaped block.
[0009] As a further embodiment of this utility model: the top edge of the positioning block on the side away from the round rod is arc-shaped.
[0010] As a further embodiment of this utility model: a number of protrusions are fixedly connected to the outer surface of the threaded ring, and the protrusions are distributed circumferentially on the outer surface of the threaded ring.
[0011] As a further embodiment of this utility model: a support block is fixedly connected to one side of the L-shaped block, and the end of the support block away from the L-shaped block is fixedly connected to one side of the rectangular block.
[0012] As a further embodiment of this utility model: a limiting device is provided on one side of the base, the limiting device including two slide rods, the slide rods sliding on the inner wall of the base, one end of one of the slide rods is rotatably connected to a threaded cylinder, the inner wall of the threaded cylinder is threadedly connected to a screw, the top end of the screw is fixedly connected to a pressure rod, the end of the pressure rod away from the screw is fixedly connected to a positioning rod, the positioning rod sliding on the inner wall of the slide rod.
[0013] As a further embodiment of this utility model: several protruding strips are fixedly connected to both sides of the slide rod, and the protruding strips are made of rubber.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This cutting equipment, by setting up a positioning device, uses a spring on one side of the positioning block to place the workpiece between a rectangular block and the positioning block. The spring pushes the positioning block to quickly adapt to the size and position of the workpiece, and the position of the positioning block is fixed by rotating the threaded ring against the surface of the L-shaped block, thereby realizing the rapid clamping and positioning of the workpiece, improving the efficiency and convenience of using the cutting equipment.
[0017] 2. This cutting equipment can reinforce the connection structure between the L-shaped block and the rectangular block by setting support blocks, so as to avoid the threaded ring pressing against the outer surface of the L-shaped block, causing the L-shaped block to be stressed and deformed at the connection with the rectangular block.
[0018] 3. This cutting equipment, by setting a limiting device, places the workpiece on the outer surface of the base for cutting. If the length of the workpiece protruding from the base is long, the pressure rod can be pulled to control the slide rod to move inside the base to adjust the position of the pressure rod, and push the threaded cylinder to press the bottom end of the pressure rod onto the outer surface of the workpiece, further limiting the angle between the workpiece and the base, and avoiding the end of the workpiece away from the base from lifting up as much as possible when cutting the workpiece. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a structural schematic diagram of the base of this utility model;
[0021] Figure 3 This is a structural schematic diagram of the rectangular block of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the round rod of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the pressure bar of this utility model.
[0024] In the diagram: 1. Base; 2. Positioning device; 3. Limiting device; 4. Machine arm; 5. Servo motor; 6. Cutting blade; 7. Cutting groove; 21. Rectangular block; 22. Round rod; 23. Positioning block; 24. Spring; 25. L-shaped block; 26. Threaded ring; 27. Protrusion; 28. Support block; 31. Slide rod; 32. Threaded cylinder; 33. Pressure rod; 34. Screw; 35. Positioning rod; 36. Protrusion. Detailed Implementation
[0025] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0026] like Figure 1-4As shown, this utility model provides a technical solution: a metal processing cutting device with a limiting structure, including a base 1, an arm 4 rotatably connected to the top of the base 1 via a rotating shaft, a torsion spring for limiting the angle of the arm 4 at the top of the base 1 on the outer side of the rotating shaft connecting the arm 4 and the base 1, a servo motor 5 is provided on one side of the arm 4, a cutting blade 6 is rotatably mounted on one side of the arm 4, the output end of the servo motor 5 is connected to one side of the cutting blade 6 via a coupling, a cutting groove 7 is formed on the outer surface of the base 1, and a positioning device 2 is provided on the outer surface of the base 1, the positioning device 2 including two rectangular blocks 21, the bottom end of the rectangular blocks 21 being fixedly connected to the outer surface of the base 1, and two rectangular blocks 21 being slidably connected to the inner wall of one rectangular block 21. A round rod 22 has a positioning block 23 fixedly connected to one end. Two L-shaped blocks 25 are fixedly connected to the outer surface of a rectangular block 21 near the round rod 22. A spring 24 is provided on the outer surface of the round rod 22, with its two ends fixedly connected to one side of the positioning block 23 and one side of the rectangular block 21, respectively. The round rod 22 slides on the inner wall of the L-shaped block 25. A threaded ring 26 is threadedly connected to the outer surface of the round rod 22, located between the rectangular block 21 and the L-shaped block 25. By setting the positioning block 23, when using the cutting equipment, the workpiece is inserted between a rectangular block 21 and the positioning block 23 on the outer surface of the base 1. When the bottom end of the workpiece contacts the surface of the positioning block 23, it will push the positioning block 23 and the round rod 22 towards the L-shaped block 25. The workpiece moves in a direction and compresses the spring 24. After the bottom end of the workpiece contacts the outer surface of the base 1, the spring 24 returns to its original shape, pushing the positioning block 23 so that one side of the positioning block 23 always fits against the side of the workpiece. Then, the threaded ring 26 is rotated on the outer surface of the two round rods 22 respectively, so that the threaded ring 26 moves towards the L-shaped block 25 on the outer surface of the round rod 22, and one side of the threaded ring 26 abuts against the outer surface of the L-shaped block 25, so that the round rod 22 will not continue to move towards the L-shaped block 25. The workpiece is clamped by the positioning block 23 and the rectangular block 21, and the position of the workpiece on the base 1 is fixed. Then, the control button at the top of the press arm 4 is pressed to control the servo motor 5 to operate. The output end of the servo motor 5 drives the cutting blade 6 to rotate, and the press arm 4 is pressed. The workpiece is slowly contacted by the rotating shaft, and the workpiece is cut by the rotating cutting blade 6. As the cutting blade 6 descends, it enters the cutting groove 7. After cutting, the threaded ring 26 is rotated away from the outer surface of the L-shaped block 25 to release the position fixation of the positioning block 23, and then the workpiece can be taken out. By setting the positioning device 2 and setting the spring 24 on one side of the positioning block 23, the workpiece is placed between a rectangular block 21 and the positioning block 23. The spring 24 pushes the positioning block 23 to quickly adapt to the size and position of the workpiece, and the position of the positioning block 23 is fixed by rotating the threaded ring 26 against the surface of the L-shaped block 25. This achieves quick clamping and positioning of the workpiece, improving the efficiency and convenience of using the cutting equipment.
[0027] Specifically, such as Figure 2-4 As shown, the top edge of the positioning block 23 on the side away from the round rod 22 is arc-shaped. By setting the top edge of the positioning block 23 on the side away from the round rod 22 to be arc-shaped, it is easier to push the positioning block 23 to move its position when the workpiece contacts the outer surface of the positioning block 23. Several protrusions 27 are fixedly connected to the outer surface of the threaded ring 26. The protrusions 27 are circumferentially distributed on the outer surface of the threaded ring 26. By touching the protrusions 27 on the outer surface of the threaded ring 26, it is easier to push the threaded ring 26 to rotate and it is less likely to slip when controlling the rotation of the threaded ring 26.
[0028] Specifically, such as Figure 2-4 As shown, a support block 28 is fixedly connected to one side of the L-shaped block 25. The end of the support block 28 away from the L-shaped block 25 is fixedly connected to one side of the rectangular block 21. By setting the support block 28, the connection structure between the L-shaped block 25 and the rectangular block 21 can be reinforced, and the threaded ring 26 can be prevented from pressing against the outer surface of the L-shaped block 25, causing the L-shaped block 25 to be subjected to force and deform at the connection with the rectangular block 21 as much as possible.
[0029] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, a limiting device 3 is provided on one side of the base 1. The limiting device 3 includes two sliding rods 31, which slide on the inner wall of the base 1. One end of one sliding rod 31 is rotatably connected to a threaded cylinder 32. The inner wall of the threaded cylinder 32 is threadedly connected to a screw 34. The top end of the screw 34 is fixedly connected to a pressure rod 33. The end of the pressure rod 33 away from the screw 34 is fixedly connected to a positioning rod 35. The positioning rod 35 slides on the inner wall of the sliding rod 31. When the workpiece is placed on the outer surface of the base 1 for cutting, if the length of the workpiece protruding from the base 1 is long, the pressure rod 33 can be pulled to control the sliding rod 31 to move and adjust inside the base 1. Positioning the pressure rod 33, it pushes the threaded cylinder 32 to rotate, causing the screw 34 to move downward on the inner wall of the threaded cylinder 32 and the positioning rod 35 to slide downward on the inner wall of the slide rod 31. This presses the bottom end of the pressure rod 33 onto the outer surface of the workpiece, further limiting the angle between the workpiece and the base 1, and minimizing the possibility of the end of the workpiece away from the base 1 lifting up when cutting the workpiece. Several protrusions 36 are fixedly connected to both sides of the slide rod 31. The protrusions 36 are made of rubber. By setting the rubber protrusions 36, the friction between the outer surface of the slide rod 31 and the inner wall of the base 1 can be increased, making it less likely for the slide rod 31 to slide on its own.
[0030] The working principle of this utility model is as follows:
[0031] S1. When using the cutting equipment, insert the workpiece between a rectangular block 21 and a positioning block 23 on the outer surface of the base 1. When the bottom end of the workpiece contacts the surface of the positioning block 23, it will push the positioning block 23 and the round rod 22 towards the L-shaped block 25 and compress the spring 24. After the bottom end of the workpiece contacts the outer surface of the base 1, the spring 24 will return to its original shape and push the positioning block 23 so that one side of the positioning block 23 is always in contact with the side of the workpiece. Then, rotate the threaded ring 26 on the outer surface of the two round rods 22 respectively, so that the threaded ring 26 moves towards the L-shaped block 25 on the outer surface of the round rod 22 and presses one side of the threaded ring 26 against the outer surface of the L-shaped block 25, so that the round rod 22 will not continue to move towards the L-shaped block 25. The positioning block 23 and the rectangular block 21 clamp the workpiece and fix its position on the base 1. If the workpiece protrudes... The base 1 is relatively long, allowing the pressure rod 33 to be pulled to control the sliding rod 31 to move and adjust its position within the base 1. Then, the threaded cylinder 32 is pushed to rotate, causing the screw 34 to move downwards along the inner wall of the threaded cylinder 32 and the positioning rod 35 to slide downwards along the inner wall of the sliding rod 31. This presses the bottom end of the pressure rod 33 against the outer surface of the workpiece, further restricting the angle between the workpiece and the base 1. Next, the control button at the top of the press arm 4 is pressed to operate the servo motor 5. The output of the servo motor 5 drives the cutting blade 6 to rotate. The press arm 4 slowly contacts the surface of the workpiece via the rotating shaft, and the rotating cutting blade 6 cuts the workpiece. During its descent, the cutting blade 6 enters the cutting groove 7. After cutting, the threaded ring 26 is rotated away from the outer surface of the L-shaped block 25 to release the fixation of the positioning block 23, and then the workpiece can be removed.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A metal processing cutting device with a limiting structure, comprising a base (1), characterized in that: The top of the base (1) is rotatably connected to the arm (4) via a pivot. A torsion spring is provided on the outside of the pivot connecting the arm (4) and the base (1) to limit the angle of the arm (4) at the top of the base (1). A servo motor (5) is provided on one side of the arm (4), and a cutting blade (6) is rotatably provided on one side of the arm (4). The output end of the servo motor (5) is connected to one side of the cutting blade (6) via a coupling. A cutting groove (7) is provided on the outer surface of the base (1), and a positioning device (2) is provided on the outer surface of the base (1). The positioning device (2) includes two rectangular blocks (21), the bottom of which is flush with the outer surface of the base (1). The rectangular block (21) is fixedly connected to two round rods (22) on its inner wall. One end of the round rod (22) is fixedly connected to a positioning block (23). Two L-shaped blocks (25) are fixedly connected to the outer surface of the rectangular block (21) near the round rod (22). A spring (24) is provided on the outer surface of the round rod (22). The two ends of the spring (24) are fixedly connected to one side of the positioning block (23) and one side of the rectangular block (21), respectively. The round rod (22) slides on the inner wall of the L-shaped block (25). A threaded ring (26) is threadedly connected to the outer surface of the round rod (22). The threaded ring (26) is located between the rectangular block (21) and the L-shaped block (25).
2. The cutting apparatus for metal working with a limiting structure according to claim 1, characterized in that: The top edge of the positioning block (23) on the side away from the round rod (22) is arc-shaped.
3. A cutting apparatus for metal working with a limiting structure according to claim 2, characterized in that: The outer surface of the threaded ring (26) is fixedly connected with several protrusions (27), which are distributed circumferentially on the outer surface of the threaded ring (26).
4. The cutting apparatus for metal working with a limiting structure according to claim 3, characterized in that: A support block (28) is fixedly connected to one side of the L-shaped block (25), and the end of the support block (28) away from the L-shaped block (25) is fixedly connected to one side of the rectangular block (21).
5. The cutting apparatus for metal working with a limiting structure according to claim 1, characterized in that: A limiting device (3) is provided on one side of the base (1). The limiting device (3) includes two slide rods (31). The slide rods (31) slide on the inner wall of the base (1). One end of one of the slide rods (31) is rotatably connected to a threaded cylinder (32). The inner wall of the threaded cylinder (32) is threadedly connected to a screw (34). The top end of the screw (34) is fixedly connected to a pressure rod (33). The end of the pressure rod (33) away from the screw (34) is fixedly connected to a positioning rod (35). The positioning rod (35) slides on the inner wall of the slide rod (31).
6. A cutting apparatus for metal working with a limiting structure according to claim 5, characterized in that: The slide bar (31) has several protrusions (36) fixedly connected to both sides, and the protrusions (36) are made of rubber.