Double-station auxiliary positioning tool for metal cutting

Abstract

The utility model belongs to metal processing technical field, concretely relates to a kind of double-station auxiliary positioning tool for metal cutting, including chassis, the surface of the chassis is provided with the fixed end of electric push rod, further include positioning mechanism, the positioning mechanism includes connecting button, by being placed in operating range with cylindrical workpiece, by the expansion plate of two sides, L-shaped rod one and L-shaped rod two drive respective rubber pad and workpiece contact, so that clamping positioning is carried out to it, when facing the cylindrical workpiece of different radius size, by rotating rotating cylinder so that threaded rod moves, threaded rod moves then drives expansion plate to move, so that with the movement of expansion plate makes the clamping range become larger, double-station can handle two workpieces synchronously, and quick positioning can reduce the adjustment time when the workpiece of different radius switches, so that it is not necessary to frequently replace fixture or manual calibration, shorten auxiliary working hours, improve equipment utilization.

Description

Technical Field

[0001] This utility model belongs to the field of metal processing technology, specifically relating to an auxiliary positioning fixture for dual-station metal cutting. Background Technology

[0002] A dual-station metal cutting auxiliary positioning fixture is an auxiliary device designed specifically for metal cutting equipment. Its core function is to accurately position, clamp, and fix two metal workpieces simultaneously through two independent and cooperative positioning units, ensuring the stability of the workpiece position during the cutting process, thereby improving cutting accuracy, efficiency, and operational safety.

[0003] Patent publication number CN218003224U discloses a dual-station clamping structure, including a mounting plate, a cylinder, two first sliding components, two second sliding components, a pushing mechanism, and a connecting rod. The mounting plate is horizontally positioned, the cylinder is located at the lower center of the mounting plate, and the pushing mechanism is located at the piston rod head of the cylinder and can move along the extension and retraction direction of the piston rod. The two first sliding components are respectively located on the left and right sides of the mounting plate, and the two second sliding components are located on the rear side of the mounting plate. The pushing mechanism abuts against the first sliding components. This dual-station clamping structure uses a single cylinder as a power source to drive multiple sliding components to move. During the movement of the sliding components, the back film of the mobile phone is fixed, preventing the back film from slipping during manual inspection. By adding fixing components, the original single-station clamping structure is divided into dual stations, increasing the number of back films that can be clamped during the same inspection process.

[0004] However, the auxiliary positioning fixtures currently used for dual-station metal cutting have the following problems: when changing workpieces of different radii, it is necessary to frequently change special fixtures or manually and repeatedly calibrate the positioning, which increases the auxiliary time, weakens the parallel processing advantage of dual stations, leads to a decrease in equipment utilization, and slows down the overall production rhythm. Therefore, we propose an auxiliary positioning fixture for dual-station metal cutting. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary positioning fixture for dual-station metal cutting, which can solve the problem of edge force attenuation when using vacuum pinhole adsorption for large-size panels in related technologies. Furthermore, the weight of the panel itself will exacerbate the force difference between the center and the edge. If there is no vacuum nozzle to strengthen adsorption at the four corners, the center of the panel may be sunken due to excessive force, and the edges may be raised due to insufficient force, forming an arc-shaped bend. This deformation will lead to a decrease in the subsequent bonding effect.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] An auxiliary positioning fixture for dual-station metal cutting includes a base frame. The base frame has a fixed end for an electric push rod on its surface. It also includes a positioning mechanism, which includes a connecting button. One side of the connecting button is fixedly mounted on the output end of the electric push rod. An L-shaped rod (first and second) is rotatably mounted on the inner wall of the base frame. A gear sleeve (first and second) is provided on the circumferential surface of the L-shaped rod (first and second). A connecting plate is fixedly mounted on the surface of the L-shaped rod (first) near the electric push rod. The other side of the connecting button is slidably mounted on the inner wall of the connecting plate. The connecting button moves when the output end of the electric push rod retracts. This movement of the connecting button moves the connecting plate, causing it to rotate. The rotation of the connecting plate then rotates the L-shaped rod (first), which in turn rotates the gear sleeve (first) and the gear sleeve (second), causing the L-shaped rod (second) to rotate, thus positioning the L-shaped rod (first) and L-shaped rod (second) opposite each other.

[0008] The number of L-shaped rod one, L-shaped rod two, gear sleeve one and gear sleeve two is set to four, and they are symmetrical to each other along the vertical central axis of the base frame. The number of connecting button and connecting plate is set to two, and they are symmetrical to each other along the vertical central axis of the base frame.

[0009] Both L-shaped rod one and L-shaped rod two are provided with rubber pads. Gear sleeve one and gear sleeve two mesh with each other. The rotation of gear sleeve one causes gear sleeve two to rotate.

[0010] A fixing frame is fixedly installed on the surface of the L-shaped rod, and a rotating cylinder is rotatably installed on the inner wall of the fixing frame. The inner wall of the rotating cylinder is provided with a threaded groove.

[0011] The inner wall of the rotating cylinder is threaded with a threaded rod, and the circumferential surface of the threaded rod is provided with an expansion plate. The number of the fixed frame, rotating cylinder, threaded rod and expansion plate is set to four, and they are symmetrical to each other along the vertical central axis of the base frame. The surface of each expansion plate is provided with a rubber pad. When L-shaped rod one and L-shaped rod two rotate respectively, they drive their own fixed frames to move. The movement of the fixed frames drives the rotating cylinder to move, the movement of the rotating cylinder drives the threaded rod to move, and the movement of the threaded rod drives the expansion plate to move. Through the expansion plates on both sides, L-shaped rod one and L-shaped rod two drive their respective rubber pads to contact the workpiece.

[0012] The base frame is provided with a balancing device, which includes a servo motor. A reciprocating lead screw is rotatably mounted on the inner wall of the base frame. The output end of the servo motor is connected to the reciprocating lead screw via a belt drive. The output end of the servo motor drives the belt to rotate the reciprocating lead screw.

[0013] A limiting plate is fixedly installed on the circumferential surface of the reciprocating lead screw, and a brake plate is threaded onto the circumferential surface of the reciprocating lead screw. The number of the limiting plate and the brake plate is set to two, and they are symmetrical to each other along the vertical central axis of the base frame. When the reciprocating lead screw rotates, the brake plates on both sides move relative to each other, and the brake plates move at most to the limiting plate. The movement of the brake plates on both sides makes the position of the cylindrical workpiece centered.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention, through the setting of a positioning mechanism, places a cylindrical workpiece within the operating range. The expansion plates on both sides, L-shaped rod one, and L-shaped rod two drive their respective rubber pads to contact the workpiece, thereby clamping and positioning it. When dealing with cylindrical workpieces of different radii, rotating the rotating cylinder moves the threaded rod, which in turn moves the expansion plate, thus increasing the clamping range. The dual-station design allows for the simultaneous processing of two workpieces, and the rapid positioning reduces the adjustment time when switching between workpieces of different radii, eliminating the need for frequent fixture changes or manual calibration, shortening auxiliary working hours, and improving equipment utilization.

[0016] This invention, through the setting of a balancing device, addresses the issue that if the center of a cylindrical workpiece is not centered within the clamping range after clamping, errors may occur during cutting. In this case, the output of a servo motor drives a belt to rotate a reciprocating lead screw. The rotation of the reciprocating lead screw causes the brake plates on both sides to move relative to each other, moving them at most to the limit plate. The movement of the brake plates on both sides centers the cylindrical workpiece, ensuring that the axis of the cylindrical workpiece is precisely aligned with the baseline of the cutting equipment. This avoids problems such as eccentric cuts and asymmetrical dimensions caused by placement offsets, making it particularly suitable for situations requiring symmetrical cutting and directly reducing dimensional errors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the structure at the position of the servo motor and the base frame of this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the positioning mechanism structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure at the position of the connecting button and the electric push rod of this utility model;

[0021] Figure 5 This is an enlarged schematic diagram of the structure of the balancing device of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base frame; 2. Electric push rod; 3. Positioning mechanism; 30. Connecting button; 31. L-shaped rod one; 32. L-shaped rod two; 33. Gear sleeve one; 34. Gear sleeve two; 35. Connecting plate; 36. Fixing frame; 37. Rotating cylinder; 38. Threaded rod; 39. Expansion plate; 4. Balancing device; 40. Servo motor; 41. Reciprocating lead screw; 42. Belt; 43. Limiting plate; 44. Brake plate. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-5 As shown, an auxiliary positioning fixture for dual-station metal cutting includes a base frame 1. The surface of the base frame 1 is provided with a fixed end of an electric push rod 2. The fixture also includes a positioning mechanism 3, which includes a connecting button 30. One side of the connecting button 30 is fixedly installed on the output end of the electric push rod 2. An L-shaped rod 31 is rotatably installed on the inner wall of the base frame 1, and an L-shaped rod 32 is rotatably installed on the inner wall of the base frame 1. A gear sleeve 33 is provided on the circumferential surface of the L-shaped rod 31, and a gear sleeve 34 is provided on the circumferential surface of the L-shaped rod 32. A connecting plate 35 is fixedly installed on the surface of the L-shaped rod 31 near the electric push rod 2. The other side of the connecting button 30 is slidably installed on the inner wall of the connecting plate 35, causing their respective rubber pads to contact the workpiece, thereby positioning it.

[0026] The number of L-shaped rod 31, L-shaped rod 32, gear sleeve 33 and gear sleeve 34 are set to four, and they are symmetrical to each other along the vertical central axis of the base frame 1. The number of connecting button 30 and connecting plate 35 are set to two, and they are symmetrical to each other along the vertical central axis of the base frame 1.

[0027] Both L-shaped rod 31 and L-shaped rod 32 are provided with rubber pads to prevent the workpiece from being pinched. Gear sleeve 33 meshes with gear sleeve 34.

[0028] A fixing bracket 36 is fixedly installed on the surface of the L-shaped rod 31. A rotating cylinder 37 is rotatably installed on the inner wall of the fixing bracket 36. A threaded groove is opened on the inner wall of the rotating cylinder 37.

[0029] A threaded rod 38 is threaded onto the inner wall of the rotating cylinder 37. An expansion plate 39 is provided on the circumferential surface of the threaded rod 38. The number of the fixed frame 36, rotating cylinder 37, threaded rod 38, and expansion plate 39 is set to four, and they are symmetrical about each other along the vertical central axis of the base frame 1. The surface of the expansion plate 39 is provided with rubber pads. When facing cylindrical workpieces of different radii, rotating the rotating cylinder 37 causes the threaded rod 38 to move. The movement of the threaded rod 38 drives the expansion plate 39 to move, so that the clamping range increases with the movement of the expansion plate 39. Two workpieces can be processed simultaneously in the dual-station configuration. The rapid positioning can reduce the adjustment time when switching between workpieces of different radii, so that there is no need to frequently change fixtures or perform manual calibration, shortening auxiliary time and improving equipment utilization.

[0030] The base frame 1 is provided with a balancing device 4, which includes a servo motor 40. A reciprocating lead screw 41 is rotatably mounted on the inner wall of the base frame 1. The output end of the servo motor 40 is connected to the reciprocating lead screw 41 by a belt 42.

[0031] A limiting plate 43 is fixedly installed on the circumferential surface of the reciprocating lead screw 41, and a brake plate 44 is threadedly installed on the circumferential surface of the reciprocating lead screw 41. The number of limiting plates 43 and brake plates 44 is set to two, and they are symmetrical about each other along the vertical central axis of the base frame 1, so that the position of the cylindrical workpiece is centered. After centering, it can ensure that the axis of the cylindrical workpiece is precisely aligned with the baseline of the cutting equipment, avoiding problems such as eccentricity of the cut and asymmetry of the two sides caused by placement offset. It is especially suitable for working conditions that require symmetrical cutting and directly reduces dimensional errors.

[0032] According to the above structure, by placing the cylindrical workpiece within the operating range, the output end of the electric push rod 2 retracts, causing the connecting button 30 to move. The movement of the connecting button 30 causes the connecting plate 35 to move, thereby causing the connecting plate 35 to rotate. The rotation of the connecting plate 35 causes the L-shaped rod 31 to rotate, which in turn causes the gear sleeve 33 to rotate. The rotation of the gear sleeve 33 causes the gear sleeve 34 to rotate, which in turn causes the L-shaped rod 32 to rotate, making the L-shaped rod 31 and the L-shaped rod 32 move towards each other. The positioning mechanism 1 on the other side operates in the same way. When the L-shaped rod 31 and the L-shaped rod 32 rotate respectively, they each drive their own fixing frame 36 to move. The movement of the fixing frame 36 causes the L-shaped rod 31 to move towards the L-shaped rod 32. The rotating cylinder 37 moves, which in turn moves the threaded rod 38, which in turn moves the expansion plate 39. The expansion plates 39 on both sides, L-shaped rod 1 31 and L-shaped rod 2 32, cause their respective rubber pads to contact the workpiece, thus clamping and positioning it. When dealing with cylindrical workpieces of different radii, rotating the rotating cylinder 37 moves the threaded rod 38, which in turn moves the expansion plate 39. As the expansion plate 39 moves, the clamping range increases. The dual-station operation can process two workpieces simultaneously, and rapid positioning reduces the adjustment time when switching between workpieces of different radii, eliminating the need for frequent fixture changes or manual calibration, shortening auxiliary time, and improving equipment utilization.

[0033] like Figure 1-5 As shown,;

[0034] According to the above structure, after clamping the cylindrical workpiece, if the center of the workpiece is not in the center of the clamping range, cutting errors may occur. At this time, the output end of the servo motor 40 drives the belt 42 to drive the reciprocating screw 41 to rotate. The rotation of the reciprocating screw 41 causes the brake plates 44 on both sides to move relative to each other, and the brake plates 44 move up to the limit plate 43. The movement of the brake plates 44 on both sides makes the position of the cylindrical workpiece centered. After centering, it can ensure that the axis of the cylindrical workpiece is accurately aligned with the baseline of the cutting equipment, avoiding problems such as eccentricity of the cut and asymmetry of the two sides caused by placement offset. It is especially suitable for working conditions that require symmetrical cutting and directly reduces dimensional errors.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An auxiliary positioning fixture for dual-station metal cutting, comprising a base frame (1), wherein the surface of the base frame (1) is provided with a fixed end of an electric push rod (2), and further comprising a positioning mechanism (3). The positioning mechanism (3) includes a connecting button (30). One side of the connecting button (30) is fixedly installed at the output end of the electric push rod (2). An L-shaped rod (31) is rotatably installed on the inner wall of the base frame (1). An L-shaped rod (32) is rotatably installed on the inner wall of the base frame (1). A gear sleeve (33) is provided on the circumferential surface of the L-shaped rod (31). A gear sleeve (34) is provided on the circumferential surface of the L-shaped rod (32). A connecting plate (35) is fixedly installed on the surface of the L-shaped rod (31) near the electric push rod (2). The other side of the connecting button (30) is slidably installed on the inner wall of the connecting plate (35).

2. The auxiliary positioning fixture for dual-station metal cutting according to claim 1, characterized in that: The number of L-shaped rod one (31), L-shaped rod two (32), gear sleeve one (33) and gear sleeve two (34) is set to four, and they are symmetrical to each other along the vertical central axis of the base frame (1). The number of connecting button (30) and connecting plate (35) is set to two, and they are symmetrical to each other along the vertical central axis of the base frame (1).

3. The auxiliary positioning fixture for dual-station metal cutting according to claim 1, characterized in that: Both L-shaped rod one (31) and L-shaped rod two (32) are provided with rubber pads, and gear sleeve one (33) meshes with gear sleeve two (34).

4. The auxiliary positioning fixture for dual-station metal cutting according to claim 1, characterized in that: A fixing bracket (36) is fixedly installed on the surface of the L-shaped rod (31), and a rotating cylinder (37) is rotatably installed on the inner wall of the fixing bracket (36). The inner wall of the rotating cylinder (37) is provided with a threaded groove.

5. The auxiliary positioning fixture for dual-station metal cutting according to claim 4, characterized in that: The inner wall of the rotating cylinder (37) is threaded with a threaded rod (38), and the circumferential surface of the threaded rod (38) is provided with an expansion plate (39). The number of the fixed frame (36), rotating cylinder (37), threaded rod (38) and expansion plate (39) is set to four, and they are symmetrical to each other along the vertical central axis of the base frame (1). The surface of the expansion plate (39) is provided with a rubber pad.

6. The auxiliary positioning fixture for dual-station metal cutting according to claim 1, characterized in that: The base frame (1) is provided with a balancing device (4), which includes a servo motor (40). A reciprocating screw (41) is rotatably installed on the inner wall of the base frame (1). The output end of the servo motor (40) is connected to the reciprocating screw (41) by a belt (42).

7. The auxiliary positioning fixture for dual-station metal cutting according to claim 6, characterized in that: A limiting plate (43) is fixedly installed on the circumferential surface of the reciprocating screw (41), and a brake plate (44) is threadedly installed on the circumferential surface of the reciprocating screw (41). The number of the limiting plate (43) and the brake plate (44) is set to two, and they are symmetrical to each other along the vertical central axis of the base frame (1).

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