A machine tool for processing pliers with a positioning mechanism

Abstract

This utility model discloses a pliers processing machine tool with a positioning mechanism, belonging to the field of hardware tool processing technology. It includes a processing table and a cutting structure arranged on the processing table for cutting pliers blanks. The cutting structure includes a fixed shaft arranged on the inner wall of the processing table, a movable plate rotatably sleeved on the fixed shaft, and two grips symmetrically arranged on one side of the movable plate. This utility model allows the pliers blank to be placed on a U-shaped clamp and fixed using a vertical clamping plate. The motor controls the rotation of the cutting saw blade. The operator can then use both hands to push the trapezoidal stops on both sides and push the grips upwards to push the cutting saw blade out of the saw blade hole to cut the blank. When the grips are released, the cutting saw blade descends into the processing table. The cutting saw blade adopts a concealed design, and the trapezoidal stops remind the operator to use both hands for pushing, preventing hands from accidentally entering the saw blade's working area.

Description

Technical Field

[0001] This utility model relates to the field of hardware tool processing technology, specifically to a pliers processing machine tool with a positioning mechanism. Background Technology

[0002] Pliers processing machine tools are automated or semi-automated equipment specifically designed for the production of pliers (such as wire cutters, needle-nose pliers, diagonal pliers, etc.). They can complete key processes such as cutting, drilling, milling, corner assembly, and polishing of pliers blanks. Through precise positioning, clamping, and processing control, they ensure the dimensional accuracy, structural strength, and performance of the finished pliers. They are the core equipment for the mass production of pliers.

[0003] Chinese Patent Publication No. CN222885849U discloses a clamping machine tool with a positioning mechanism, including a worktable and a clamping mechanism. The clamping mechanism includes a square base fixed to the worktable and a cylinder fixed inside the worktable. A piston is movably connected inside the square base, and a piston rod is fixed to the side of the piston. A chuck for clamping a workpiece is fixed to the end of the piston rod. A piston is movably connected inside the cylinder, which communicates with the square base. Both the cylinder and the square base are filled with hydraulic oil. This invention, through the clamping mechanism, places the workpiece between the two chucks. Activating the drive mechanism moves the piston two upwards, which in turn moves the piston one via hydraulic oil, thereby causing the two chucks to clamp the workpiece. The operation is simple and convenient, eliminating the need for clamping at both ends, thus making the clamping and positioning of the workpiece more convenient.

[0004] In the aforementioned prior art, the clamping and fixing of the pliers blank can be achieved by controlling the movement of the clamping mechanism. The pliers blank is then cut using a cutting saw blade. However, the saw blade of this device is exposed whether it is stationary or rotating at high speed. When the operator is feeding or adjusting the material, their hands are prone to slipping or entering the cutting area, causing hand cuts or other injuries. Utility Model Content

[0005] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a pliers processing machine tool with a positioning mechanism, so as to solve the problem mentioned in the background art that the saw blade of the aforementioned pliers processing machine tool is exposed in both static and high-speed rotating states, and the operator's hands are prone to accidentally or slipping into the cutting area when feeding or adjusting the material, causing hand scratches and cuts.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A machine tool for processing pliers with a positioning mechanism, comprising:

[0008] Processing table;

[0009] The cutting structure, arranged on the processing table, is used to cut and process pliers blanks;

[0010] A limiting structure is arranged on the processing table and used in conjunction with the cutting structure to limit the position of the cutting structure on the processing table;

[0011] The clamping structure, arranged on the processing table, is used to clamp and position the pliers blank.

[0012] Preferably, the cutting structure includes:

[0013] The fixed shaft is arranged on the inner wall of the machining table;

[0014] The movable plate is rotatably mounted on the fixed shaft;

[0015] Two grips are symmetrically arranged on one side of the movable plate;

[0016] The motor is located on one side of the movable plate;

[0017] The cutting saw blade is positioned at the output end of the motor;

[0018] The saw blade hole and the two movable holes are all made on the processing table. The saw blade hole corresponds to the cutting saw blade, and the two handles are respectively movably installed in the two movable holes.

[0019] Preferably, the limiting structure is arranged in two sets, and each set of limiting structures includes:

[0020] A limiting frame is arranged on one side of the processing table;

[0021] The slide is slidably installed inside the limiting frame;

[0022] A trapezoidal stop is positioned on one side of the slide and above the grip bar;

[0023] A lever is positioned on one side of the trapezoidal stop block;

[0024] The elastic component, arranged on the slide, is used to limit the position of the slide.

[0025] Preferably, the elastic component includes a spring, which is slidably sleeved on the limiting rod. One end of the spring is arranged on the inner wall of the limiting frame, and the other end of the spring is arranged on one side of the slide.

[0026] Preferably, the elastic component further includes a limiting rod, which is arranged on the inner wall of the limiting frame, and the spring and the slide are slidably sleeved on the limiting rod.

[0027] Preferably, the clamping structure is arranged in two sets, and each set of clamping structures includes:

[0028] The support base is located on one side of the processing table;

[0029] Cylinder 1 is located on one side of the support base, and the telescopic end of cylinder 1 passes through the support base.

[0030] The U-shaped clamp is positioned on the telescopic end of cylinder one;

[0031] A guide component, arranged on the U-shaped clamp, is used to guide the U-shaped clamp to move horizontally.

[0032] Preferably, the guiding component includes:

[0033] T-shaped guide rails are arranged on the machining table;

[0034] A T-slot is formed inside the U-shaped clamp, and the T-shaped guide rail is slidably installed in the T-slot.

[0035] Preferably, the clamping structure further includes:

[0036] Cylinder two is positioned above the U-shaped clamp;

[0037] A vertical clamping plate is arranged on the telescopic end of cylinder two and slidably installed inside the U-shaped clamp;

[0038] The guide rod is slidably mounted inside the U-shaped clamp and positioned above the vertical clamping plate.

[0039] The beneficial effects of this utility model are as follows:

[0040] This invention allows the workpiece to be placed on the U-shaped clamps on both sides and held in place by vertical clamps. The motor controls the rotation of the cutting saw blade. The operator can then push the trapezoidal blocks on both sides with both hands to disengage them from the grip lever. Pushing the grip lever upwards then pushes the cutting saw blade out of the saw blade hole to cut the workpiece. When the grip lever is released, the cutting saw blade descends into the processing table. The cutting saw blade features a concealed design, preventing accidental contact with the high-speed rotating or stationary blade when the grip lever is released. The trapezoidal blocks also serve as a reminder to use both hands for pushing, avoiding single-handed operation and ensuring both hands are in a safe position during cutting. This prevents hands from accidentally entering the saw blade's working area, reducing the risk of hand cuts and other mechanical injuries.

[0041] This invention allows for adjustment of the spacing between the U-shaped clamps and vertical clamping plates on both sides by opening the cylinders on both sides, enabling it to clamp and fix blanks of different sizes and specifications, thus improving the versatility and flexibility of the clamping device. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic diagram of a pliers processing machine tool with a positioning mechanism provided for an embodiment of this utility model;

[0044] Figure 2 A schematic cross-sectional view of a pliers processing machine tool with a positioning mechanism provided for an embodiment of this utility model;

[0045] Figure 3 A schematic cross-sectional view of the limiting frame structure of a pliers processing machine tool with a positioning mechanism provided for an embodiment of this utility model;

[0046] Figure 4 A schematic diagram of the movable plate structure of a pliers processing machine tool with a positioning mechanism provided for an embodiment of this utility model;

[0047] Figure 5 A schematic diagram of a U-shaped clamp structure for a pliers processing machine tool with a positioning mechanism provided for an embodiment of this utility model;

[0048] Figure 6 This is a schematic diagram of a vertical clamping plate structure for a pliers processing machine tool with a positioning mechanism, provided as an embodiment of the present utility model.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Processing table; 2. Fixed shaft; 201. Movable plate; 202. Handle bar; 203. Motor; 204. Cutting saw blade; 205. Saw blade hole; 206. Movable hole; 3. Limiting frame; 301. Slide; 302. Trapezoidal stop; 303. Pulley; 304. Spring; 305. Limiting rod; 4. Support base; 401. Cylinder 1; 402. U-shaped clamp; 403. T-shaped guide rail; 404. T-slot; 405. Cylinder 2; 406. Vertical clamping plate; 407. Guide rod. Detailed Implementation

[0051] 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.

[0052] Example 1:

[0053] like Figures 1 to 6 As shown, this utility model provides a machine tool for processing pliers with a positioning mechanism, including: a processing table 1 and a cutting structure arranged on the processing table 1 for cutting and processing pliers blanks.

[0054] The cutting structure includes a fixed shaft 2 arranged on the inner wall of the processing table 1, a movable plate 201 rotatably sleeved on the fixed shaft 2, two grips 202 symmetrically arranged on one side of the movable plate 201, a motor 203 arranged on one side of the movable plate 201, a cutting saw blade 204 arranged on the output end of the motor 203, a saw blade hole 205 and two movable holes 206 opened on the processing table 1, the saw blade hole 205 corresponding to the cutting saw blade 204, and the two grips 202 respectively movably installed in the two movable holes 206. Turning on the motor 203 can control the rotation of the cutting saw blade 204. Then, by holding the grips 202 with both hands and lifting them upwards, the movable plate 201, the motor 203 and the cutting saw blade 204 are rotated, so that the cutting saw blade 204 slowly rises from the saw blade hole 205 and performs cutting operations on the pliers blank.

[0055] Example 2:

[0056] Based on Example 1, in order to prevent the cutting structure from being constantly exposed and causing accidental contact by workers, and to limit the position of the cutting structure on the processing table 1, a limiting structure that works in conjunction with the cutting structure is arranged on the processing table 1.

[0057] The limiting structure consists of two sets. Each set includes a limiting frame 3 on one side of the processing table 1, a slide 301 slidably installed inside the limiting frame 3, a trapezoidal stop 302 on one side of the slide 301 and above the grip 202, a lever 303 on one side of the trapezoidal stop 302, and a spring component on the slide 301 used to limit the position of the slide 301. The trapezoidal stop 302 can be used to block the grip 202 above to limit its angle. When the operator moves the levers 303 on both sides at the same time, the corresponding trapezoidal stop 302 can be moved. The moved trapezoidal stop 302 will be removed from the obstruction above the grip 202, thus releasing the angle restriction of the grip 202 and the movable plate 201.

[0058] Specifically, the elastic component includes a spring 304 that is slidably sleeved on the limiting rod 305. One end of the spring 304 is arranged on the inner wall of the limiting frame 3, and the other end of the spring 304 is arranged on one side of the slide block 301. When the push plate 303 drives the trapezoidal stop block 302 to slide with the slide block 301, the slide block 301 will compress the spring 304. When the push plate 303 is released, the spring 304 will push the slide block 301 and the trapezoidal stop block 302 to reset. The elastic force of the spring 304 can keep the trapezoidal stop block 302 above the grip bar 202 to block it without being touched.

[0059] Specifically, the elastic component also includes a limiting rod 305 arranged on the inner wall of the limiting frame 3. The spring 304 and the slide 301 are both slidably sleeved on the limiting rod 305. When the slide 301 moves, it will slide on the limiting rod 305. The setting of the limiting rod 305 can prevent the slide 301 from coming off the limiting frame 3, and at the same time prevent the spring 304 from bending when it contracts.

[0060] Example 3:

[0061] Based on Example 1, in order to clamp and position the pliers blank and avoid deviation during cutting, a clamping structure is arranged on the processing table 1.

[0062] The clamping structure is arranged in two sets. Each set of clamping structures includes a support base 4 arranged on one side of the processing table 1, a cylinder 401 arranged on one side of the support base 4, the telescopic end of the cylinder 401 passing through the support base 4, a U-shaped clamp 402 arranged on the telescopic end of the cylinder 401, and a guide component arranged on the U-shaped clamp 402 to guide the U-shaped clamp 402 to move in the horizontal direction. Activating the corresponding cylinder 401 can cause its telescopic end to drive the U-shaped clamp 402 to move, thereby adjusting the distance between the two U-shaped clamps 402 on both sides to clamp the two ends of the blank according to the size of the clamp blank.

[0063] Specifically, the guiding components include a T-shaped guide rail 403 arranged on the processing table 1 and a T-shaped groove 404 formed inside the U-shaped clamp 402. The T-shaped guide rail 403 is slidably installed in the T-shaped groove 404. The moving U-shaped clamp 402 can slide on the T-shaped guide rail 403 through the T-shaped groove 404. The arrangement of the T-shaped guide rail 403 and the T-shaped groove 404 can restrict the horizontal movement of the U-shaped clamp 402 and prevent the U-shaped clamp 402 from detaching from the processing table 1.

[0064] The clamping structure also includes a second cylinder 405 arranged above the U-shaped clamp 402, a vertical clamping plate 406 arranged on the telescopic end of the second cylinder 405 and slidably installed inside the U-shaped clamp 402, and a guide rod 407 slidably installed inside the U-shaped clamp 402 and arranged above the vertical clamping plate 406. Opening the second cylinder 405 on both sides can control the vertical clamping plate 406 to descend. The descending vertical clamping plate 406 can press on the top of the clamp blank to clamp and fix it.

[0065] Working principle:

[0066] In use, the pliers blank can be placed on the U-shaped clamps 402 on both sides. By activating the corresponding cylinder 401, its telescopic end can move the U-shaped clamps 402, thereby adjusting the distance between the two U-shaped clamps 402 according to the size of the pliers blank. Then, activating the cylinders 405 on both sides can control the vertical clamp 406 to descend. The vertical clamp 406 can drive the guide rod 407 to slide down within the U-shaped clamps 402. The continuously descending vertical clamp 406 can press down on the pliers blank, clamping and fixing it. After completion, the operator can simultaneously move the levers 303 on both sides with both hands, causing the levers 303 to move the corresponding trapezoidal stops 302. The trapezoidal stops 302 will then cause the slide block 301 to slide. As the slide block 301 moves, it will slide on the limit rod 305 and compress the spring 304. Afterward, the continuously moving trapezoidal stops 302 will disengage from the obstruction above the grip rod 202, thus releasing the angle restriction of the grip rod 202 and the movable plate 201. The operator can then turn on the motor 203 to control the cutting. The saw blade 204 rotates, and the hands gripping the handles 202 lift upwards, causing the movable plate 201 to rotate on the fixed shaft 2. The movable plate 201 then drives the motor 203 and the cutting saw blade 204 to rotate, causing the cutting saw blade 204 to slowly rise from the saw blade hole 205 and cut the workpiece. After completion, the two handles 202 can be released. At this time, the movable plate 201 will rotate downwards due to its weight. During this process, the handles 202 will descend and press against the inclined surface of the trapezoidal stop 302, causing the trapezoidal stop 302 to... The pressure causes the slide block 301 to move and compress the spring 304. When the continuously descending handle 202 moves away from the trapezoidal stop 302 and is located at the bottom of the movable hole 206, the spring 304 will push the slide block 301 and the trapezoidal stop 302 to reset, so that the trapezoidal stop 302 blocks the handle 202 again to limit its angle. This helps to remind the operator to use both hands to move and unlock the trapezoidal stop 302 and push the handle 202 up again when using it in the future, further reducing the risk of the hand coming into contact with the cutting saw blade 204.

[0067] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A machine tool for processing pliers with a positioning mechanism, characterized by, include: Processing table (1); The cutting structure is arranged on the processing table (1) and is used to cut and process the pliers blank; A limiting structure is arranged on the processing table (1) and used in conjunction with the cutting structure to limit the position of the cutting structure on the processing table (1); The clamping structure is arranged on the processing table (1) and is used to clamp and position the pliers blank.

2. The machine tool for processing pliers with a positioning mechanism according to claim 1, characterized in that, The cutting structure includes: A fixed shaft (2) is arranged on the inner wall of the machining table (1); The movable plate (201) is rotatably mounted on the fixed shaft (2); Two grips (202) are symmetrically arranged on one side of the movable plate (201); The motor (203) is arranged on one side of the movable plate (201); The cutting saw blade (204) is arranged on the output end of the motor (203); The saw blade hole (205) and the two movable holes (206) are both opened on the processing table (1). The saw blade hole (205) corresponds to the cutting saw blade (204). The two grips (202) are respectively movably installed in the two movable holes (206).

3. The machine tool for processing pliers with a positioning mechanism according to claim 1, characterized in that, The limiting structure is arranged in two sets, and each set of limiting structures includes: The limiting frame (3) is arranged on one side of the processing table (1); The slide (301) is slidably installed inside the limiting frame (3); A trapezoidal stop (302) is arranged on one side of the slide (301) and above the grip (202); A lever (303) is arranged on one side of the trapezoidal stop (302).

4. The machine tool with a positioning mechanism for pliers processing according to claim 3, characterized in that, The slide (301) is provided with an elastic component for limiting the position of the slide (301).

5. The machine tool with a positioning mechanism for pliers processing according to claim 4, characterized in that, The elastic component includes a spring (304), which is slidably sleeved on the limiting rod (305). One end of the spring (304) is arranged on the inner wall of the limiting frame (3), and the other end of the spring (304) is arranged on one side of the slide (301).

6. The machine tool with a positioning mechanism for pliers processing according to claim 5, wherein The elastic component also includes a limiting rod (305), which is arranged on the inner wall of the limiting frame (3). The spring (304) and the slide (301) are both slidably sleeved on the limiting rod (305).

7. A pliers processing machine tool with a positioning mechanism as described in claim 6, characterized in that, The clamping structure is arranged in two sets, and each set of clamping structures includes: Support base (4) is arranged on one side of the processing table (1); Cylinder 1 (401) is arranged on one side of support base (4), and the telescopic end of cylinder 1 (401) passes through support base (4). The U-shaped clamp (402) is arranged on the telescopic end of cylinder one (401).

8. The machine tool with a positioning mechanism for pliers processing according to claim 7, characterized in that, The U-shaped clamp (402) is provided with a guide component for guiding the U-shaped clamp (402) to move in the horizontal direction.

9. The machine tool with a positioning mechanism for pliers processing according to claim 8, characterized in that, The boot component includes: T-shaped guide rails (403) are arranged on the machining table (1); A T-slot (404) is formed inside the U-shaped clamp (402), and the T-shaped guide rail (403) is slidably installed in the T-slot (404).

10. The machine tool for machining a pliers with a positioning mechanism according to claim 1, wherein The clamping structure also includes: Cylinder 2 (405) is positioned above the U-shaped clamp (402); A vertical clamp (406) is arranged on the telescopic end of cylinder two (405) and slidably installed inside the U-shaped clamp (402); The guide rod (407) is slidably mounted inside the U-shaped clamp (402) and positioned above the vertical clamp plate (406).

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