A three-dimensional edge covering machine precision positioning clamp

Abstract

The utility model relates to the technical field of edge covering machine clamp processing, disclose a kind of three-dimensional edge covering machine precision positioning fixture, the upper end of bottom plate is equipped with the clamping structure for clamping and fixing workpiece, the upper end of clamping structure is equipped with the positioning auxiliary assembly for assisting workpiece quick positioning calibration, the utility model drives lifting plate to rise by pneumatic cylinder, and it makes clamping adjustment column swing to make clamping soft column two close to workpiece;Lifting plate drives column simultaneously, makes rotating column rotate and pushes clamping soft column one synchronous clamping. By rotating screw column one and screw column two, the extension length of two clamping soft columns can be respectively fine-tuned, to adapt to workpiece of different thickness or shape. When pneumatic cylinder goes down, reset spring makes rotating column reset, and clamping soft column one horizontally clamps workpiece side edge;Clamping adjustment column is converted to vertical under the guidance of adjusting slide column, and clamping soft column two is pushed to tightly contact workpiece, to realize stable fixation.

Description

Technical Field

[0001] This utility model relates to the field of edge banding machine fixture processing technology, specifically, to a precision positioning fixture for a three-dimensional edge banding machine. Background Technology

[0002] The precision positioning fixture for a 3D edge banding machine is a core auxiliary tooling used in conjunction with the machine. It is primarily used in the 3D edge banding processing of flexible or semi-rigid materials such as leather, fabric, and plastic (e.g., manufacturing of bag edges, shoe contours, and automotive interior soft-touch materials) to achieve high-precision fixation and positional calibration of the workpiece. Typically designed with a cavity or clamping structure adapted to the 3D contour of the target product, it integrates functional modules such as adjustable positioning pins, elastic pressure blocks, vacuum adsorption, or pneumatic clamping components. This effectively counteracts material shifts and wrinkles caused by force during the edge banding process. Simultaneously, through preset positioning references (such as scales or laser alignment marks), it ensures a constant relative position between the workpiece and the edge banding head and feeding mechanism of the machine. Ultimately, this improves the straightness, curvature consistency, and edge fitting accuracy of the edge banding lines, reduces manual alignment errors, and adapts to the high-efficiency processing requirements of automated or semi-automated production lines. It is a key component ensuring the appearance quality and dimensional stability of 3D edge banded products.

[0003] Common precision positioning fixtures for 3D edge banding machines mostly employ fixed or manually adjustable clamping and positioning mechanisms. Their clamping parts are typically rigid structures, lacking adaptive adjustment capabilities, making it difficult to effectively adapt to workpieces of different thicknesses or with complex three-dimensional curved surfaces. This can easily lead to uneven clamping force, workpiece deformation, or surface damage. Furthermore, the positioning components often rely on manual adjustment and alignment based on experience, which is not only inefficient but also results in poor repeatability and positioning accuracy, making it difficult to meet the high requirements of cycle time and consistency in automated production lines. Therefore, those skilled in the art provide a precision positioning fixture for 3D edge banding machines to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a precision positioning fixture for a three-dimensional edge banding machine, thereby solving the problems mentioned in the background section of the prior art.

[0005] This utility model provides the following technical solution: a precision positioning fixture for a three-dimensional edge banding machine, including a base plate, the upper end of which is provided with a clamping structure for clamping and fixing the workpiece, and the upper end of the clamping structure is provided with a positioning auxiliary component for assisting the workpiece in rapid positioning and calibration.

[0006] As a preferred embodiment of the above technical solution, the clamping structure includes a fixed side plate, which is symmetrically fixedly connected to the upper end of the base plate on both sides. A fixed seat is fixedly connected to the upper end of one of the fixed side plates. A rotating column is hinged to the upper end of the fixed seat. A threaded column is threaded at the center of the top of the rotating column. A clamping flexible column is fixedly connected to one end of the threaded column near the center of the base plate.

[0007] As a preferred embodiment of the above technical solution, a driving column is fixedly connected inside the end of the rotating column away from the fixed base, a return spring is fixedly connected to the upper end of the rotating column near the driving column, and a fixed column is sleeved inside the upper end of the return spring.

[0008] As a preferred embodiment of the above technical solution, a cylinder is fixedly connected to the center of the base plate, and a lifting plate is fixedly connected to the output end of the cylinder. Two protruding columns are fixedly connected to the upper end of the lifting plate away from the fixed side plate. A clamping adjustment column is hinged between the two protruding columns. A threaded column II is threaded on one side of the top end of the clamping adjustment column. A clamping flexible column II is fixedly connected to the lower end of the threaded column II.

[0009] As a preferred embodiment of the above technical solution, an adjustment slot is provided at the upper end of the inner side of the clamping soft column 2, and an adjustment slide column is slidably sleeved inside the adjustment slot. The adjustment slide column is fixedly connected to the upper end of one side of the other fixed side plate.

[0010] As a preferred embodiment of the above technical solution, the positioning auxiliary component includes a placement base, and a movable groove is provided at the center of the interior of the placement base. A protruding strip is fixedly connected to the two opposing interior centers of the movable groove.

[0011] As a preferred embodiment of the above technical solution, a motor is fixedly connected to the center of one side wall of the placement seat, a stud is fixedly connected to the output end of the motor, a sliding sleeve is threaded on the outer side of the stud, a positioning auxiliary block is fixedly connected to the upper end of the sliding sleeve, and a snap-fit ​​sliding column is fixedly connected to the center of the lower end of the positioning auxiliary block on both sides, and the two side walls of the two snap-fit ​​sliding columns that are far apart from each other are slidably snapped into each other with the two protrusions.

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

[0013] This invention utilizes a starting cylinder to push a lifting plate upwards. The lifting plate, via two protruding pillars, causes the hinged clamping adjustment pillar to swing upwards, gradually bringing the second clamping soft pillar closer to the workpiece. Simultaneously, the cylinder, by raising and lowering the lifting plate, actuates the rotating pillar, causing it to rotate around the hinge point on the fixed base, thus moving the other clamping soft pillar towards the other side of the workpiece. By rotating the first and second threaded pillars, the extension lengths of the first and second clamping soft pillars can be finely adjusted to accommodate workpieces of different thicknesses or shapes, achieving flexible yet secure clamping. When clamping and fixing are required, the cylinder pulls the lifting plate downwards. The rotating pillar returns to its original position under the action of the return spring, making the first clamping soft pillar horizontal and clamping the side of the workpiece. The other clamping adjustment pillar, when pulled, moves the adjusting slide to the upper end of the adjusting slot, causing the upper part of the clamping adjustment pillar to become vertical. Finally, the second clamping soft pillar abuts against the workpiece, achieving a fixing effect.

[0014] Based on the aforementioned beneficial effects, when the workpiece is placed, the motor is started, driving the stud to rotate. Since the sliding sleeve engages with the stud via threads, and the positioning auxiliary block connected above it slides and engages with the protrusion in the moving groove via two locking sliding pins at its lower end, the forward and reverse rotation of the motor can drive the positioning auxiliary block to move precisely and smoothly horizontally along the moving groove. The operator controls the motor's operation to make the positioning auxiliary block contact the edge of the workpiece, pushing or calibrating the workpiece to ensure it is in the precise position required for processing. The sliding engagement structure of the protrusion and locking sliding pins effectively prevents the positioning auxiliary block from shaking or shifting during movement, ensuring repeatability and reliability of positioning, and is suitable for the rapid positioning needs of workpieces of different sizes. Attached Figure Description

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a precision positioning fixture for a three-dimensional edge banding machine;

[0016] Figure 2 A schematic diagram of the overall connection of the clamping structure of a precision positioning fixture for a three-dimensional edge banding machine;

[0017] Figure 3 This is a schematic diagram of the clamping structure of a precision positioning fixture for a three-dimensional edge banding machine from another perspective.

[0018] Figure 4 A schematic diagram of the overall connection of a positioning auxiliary component for a precision positioning fixture of a three-dimensional edge banding machine;

[0019] Figure 5 A schematic diagram of the three-dimensional disassembled structure of the positioning auxiliary component.

[0020] In the diagram: 1. Base plate; 2. Clamping structure; 201. Fixed side plate; 202. Fixed seat; 203. Rotating column; 204. Threaded column one; 205. Clamping flexible column one; 206. Driving column; 207. Return spring; 208. Fixed column; 209. Cylinder; 210. Lifting plate; 211. Protruding column; 212. Clamping adjustment column; 213. Threaded column two; 214. Clamping flexible column two; 215. Adjustment slot; 216. Adjustment slide column; 3. Positioning auxiliary component; 301. Placement seat; 302. Moving slot; 303. Protruding strip; 304. Motor; 305. Threaded stud; 306. Sliding sleeve; 307. Positioning auxiliary block; 308. Snap-fit ​​slide column. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1 As shown, this utility model provides a technical solution: a precision positioning fixture for a three-dimensional edge banding machine, including a base plate 1, a clamping structure 2 for clamping and fixing the workpiece at the upper end of the base plate 1, and a positioning auxiliary component 3 for assisting the workpiece in rapid positioning and calibration at the upper end of the clamping structure 2.

[0023] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, the clamping structure 2 includes a fixed side plate 201, which is symmetrically fixedly connected to the upper end of the base plate 1 on both sides. A fixed seat 202 is fixedly connected to the upper end of one of the fixed side plates 201. A rotating column 203 is hinged to the upper end of the fixed seat 202. A threaded column 204 is threaded at the center of the top of the rotating column 203. A clamping flexible column 205 is fixedly connected to one end of the threaded column 204 near the center of the base plate 1.

[0024] The clamping structure 2 is symmetrically mounted on the base plate 1 via the fixed side plate 201, providing a stable support base. The hinged design of the fixed seat 202 and the rotating column 203 allows the clamping soft column 205 to be flexibly adjusted in angle to adapt to workpieces of different shapes. The threaded engagement between the threaded column 204 and the rotating column 203 enables fine adjustment of the clamping force, ensuring that the workpiece is firmly fixed.

[0025] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, a driving column 206 is fixedly connected inside the end of the rotating column 203 away from the fixed base 202. A return spring 207 is fixedly connected to the upper end of the rotating column 203 near the driving column 206. A fixed column 208 is sleeved inside the upper end of the return spring 207.

[0026] The drive column 206 is designed to facilitate contact with the cylinder 209 during its ascent and descent, thereby driving the rotation column 203. The return spring 207 automatically returns the rotation column 203 to its original position after the external force is released, improving the convenience and safety of operation. The fixed column 208 serves to limit and guide the return spring 207, ensuring stable movement.

[0027] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, a cylinder 209 is fixedly connected to the center of the base plate 1. A lifting plate 210 is fixedly connected to the output end of the cylinder 209. Two protruding pillars 211 are fixedly connected to the upper end of the lifting plate 210 away from the fixed side plate 201. A clamping adjustment pillar 212 is hinged between the two protruding pillars 211. A threaded pillar 213 is threaded on one side of the top end of the clamping adjustment pillar 212. A clamping flexible pillar 214 is fixedly connected to the lower end of the threaded pillar 213.

[0028] The cylinder 209 serves as the power source, driving the lifting plate 210 to move up and down, which in turn drives the clamping soft column 214 to perform clamping or releasing actions via the protruding column 211 and the clamping adjustment column 212. The hinged structure between the clamping adjustment column 212 and the protruding column 211 allows it to adapt to the workpiece surface, while the threaded column 213 can adjust the height of the clamping soft column 214, further enhancing the adaptability and accuracy of clamping.

[0029] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, an adjustment slot 215 is provided at the upper end of the inner side of the clamping soft column 214, and an adjustment slide column 216 is slidably sleeved inside the adjustment slot 215. The adjustment slide column 216 is fixedly connected to the upper end of one side of another fixed side plate 201.

[0030] The sliding engagement between the adjusting slot 215 and the adjusting slide 216 ensures that the clamping soft column 214 remains stable during movement, preventing deviation or shaking. The adjusting slide 216 is fixed to the fixed side plate 201 on the other side, forming a reliable guiding structure and improving the smoothness and repeatability of the entire clamping process.

[0031] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, the positioning auxiliary component 3 includes a placement base 301. A movable groove 302 is provided at the center of the interior of the placement base 301. A protrusion 303 is fixedly connected to the two opposing interior centers of the movable groove 302.

[0032] The placement base 301 serves as the base of the positioning auxiliary component 3. The moving groove 302 and the protrusion 303 structure inside it provide a precise guide track for the subsequent sliding parts, ensuring that the positioning auxiliary block 307 can move smoothly along the predetermined path and avoid deviation.

[0033] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, a motor 304 is fixedly connected to the center of one side wall of the placement base 301. A stud 305 is fixedly connected to the output end of the motor 304. A sliding sleeve 306 is threaded on the outer side of the stud 305. A positioning auxiliary block 307 is fixedly connected to the upper end of the sliding sleeve 306. A snap-fit ​​sliding post 308 is fixedly connected to both sides of the center of the lower end of the positioning auxiliary block 307. The two side walls of the two snap-fit ​​sliding posts 308 that are far apart from each other are slidably snapped into each other with the two protrusions 303.

[0034] Motor 304 drives stud 305 to rotate, which in turn drives sliding sleeve 306 and positioning auxiliary block 307 to move along moving groove 302 via threaded transmission, thereby achieving fine adjustment of the position of positioning auxiliary block 307. The sliding engagement structure between sliding stud 308 and protrusion 303 further enhances the stability and accuracy of the movement, ensuring that positioning auxiliary block 307 can accurately and reliably assist in the positioning of workpieces of different sizes.

[0035] Working principle: The cylinder 209 is activated, pushing the lifting plate 210 upwards. The lifting plate 210, through its two protruding pillars 211, causes the hinged clamping adjustment pillar 212 to swing upwards, gradually bringing the second clamping flexible pillar 214 closer to the workpiece. Simultaneously, the cylinder 209, by raising and lowering the lifting plate 210, actuates the driving pillar 206, causing the rotating pillar 203 to rotate around the hinge point on the fixed base 202, thus moving the first clamping flexible pillar 205 on the other side towards the other side of the workpiece. By rotating the first threaded pillar 204 and the second threaded pillar 213, the extension lengths of the first clamping flexible pillar 205 and the second clamping flexible pillar 214 can be finely adjusted to accommodate workpieces of different thicknesses or shapes, achieving flexible yet secure clamping. When clamping and fixing are required, the cylinder 209 can pull down the lifting plate 210. At this time, the rotating column 203 returns to its original position under the action of the return spring 207, so that the clamping soft column 205 is in a horizontal state and thus clamps the side of the workpiece. When the clamping adjusting column 212 on the other side is pulled, the adjusting slide column 216 will move to the upper end of the adjusting slot 215, thereby driving the upper part of the clamping adjusting column 212 to a vertical state. Finally, the clamping soft column 214 can hold the workpiece and play a fixing role.

[0036] After the workpiece is placed, the motor 304 is started, driving the stud 305 to rotate. Since the sliding sleeve 306 engages with the stud 305 via threads, and the positioning auxiliary block 307 connected above it slides and engages with the protrusion 303 in the moving groove 302 via two locking sliding pins 308 at its lower end, the forward and reverse rotation of the motor 304 can drive the positioning auxiliary block 307 to move precisely and smoothly horizontally along the moving groove 302. The operator controls the operation of the motor 304 to make the positioning auxiliary block 307 contact the edge of the workpiece, pushing or calibrating the workpiece to ensure it is in the precise position required for processing. The sliding engagement structure of the protrusion 303 and the locking sliding pins 308 effectively prevents the positioning auxiliary block 307 from shaking or shifting during movement, ensuring the repeatability and reliability of positioning, and is suitable for the rapid positioning needs of workpieces of different sizes.

[0037] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A precision positioning fixture for a three-dimensional edge banding machine, characterized in that: Includes a base plate (1), the upper end of which is provided with a clamping structure (2) for clamping and fixing the workpiece, and the upper end of the clamping structure (2) is provided with a positioning auxiliary component (3) for assisting the workpiece in rapid positioning and calibration.

2. The precision positioning fixture for a three-dimensional edge banding machine according to claim 1, characterized in that: The clamping structure (2) includes a fixed side plate (201), which is symmetrically fixedly connected to the upper end of the base plate (1) on both sides. A fixed seat (202) is fixedly connected to the upper end of one of the fixed side plates (201). A rotating column (203) is hinged to the upper end of the fixed seat (202). A threaded column (204) is threaded at the center of the top of the rotating column (203). A clamping soft column (205) is fixedly connected to one end of the threaded column (204) near the center of the base plate (1).

3. The precision positioning fixture for a three-dimensional edge banding machine according to claim 2, characterized in that: A driving column (206) is fixedly connected inside the end of the rotating column (203) away from the fixed base (202). A return spring (207) is fixedly connected to the upper end of the rotating column (203) near the driving column (206). A fixed column (208) is sleeved inside the upper end of the return spring (207).

4. The precision positioning fixture for a three-dimensional edge banding machine according to claim 2, characterized in that: A cylinder (209) is fixedly connected to the center of the base plate (1). A lifting plate (210) is fixedly connected to the output end of the cylinder (209). Two protruding columns (211) are fixedly connected to the upper end of the lifting plate (210) away from the fixed side plate (201). A clamping adjustment column (212) is hinged between the two protruding columns (211). A threaded column two (213) is threaded on one side of the top end of the clamping adjustment column (212). A clamping soft column two (214) is fixedly connected to the lower end of the threaded column two (213).

5. A precision positioning fixture for a three-dimensional edge banding machine according to claim 4, characterized in that: An adjustment slot (215) is provided at the upper end of the inner side of the clamping soft column (214). An adjustment slide column (216) is slidably sleeved inside the adjustment slot (215). The adjustment slide column (216) is fixedly connected to the upper end of one side of another fixed side plate (201).

6. The precision positioning fixture for a three-dimensional edge banding machine according to claim 1, characterized in that: The positioning auxiliary component (3) includes a placement base (301), and a moving groove (302) is provided at the center of the interior of the placement base (301). A protrusion (303) is fixedly connected to the two opposing interior centers of the moving groove (302).

7. A precision positioning fixture for a three-dimensional edge banding machine according to claim 6, characterized in that: A motor (304) is fixedly connected to the center of one side wall of the placement base (301). A stud (305) is fixedly connected to the output end of the motor (304). A sliding sleeve (306) is threaded on the outer side of the stud (305). A positioning auxiliary block (307) is fixedly connected to the upper end of the sliding sleeve (306). A snap-fit ​​sliding column (308) is fixedly connected to the center of the lower end of the positioning auxiliary block (307) on both sides. The two side walls of the two snap-fit ​​sliding columns (308) that are far apart from each other are slidably snapped into each other with the two protrusions (303).

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