Clamping positioning device and laser cutting equipment

Abstract

The utility model discloses a clamping positioning device and laser cutting equipment, including clamp seat and the hinge of clamp seat on the tongue pressing, and the tongue pressing is located in the width range of clamp seat, the distal end of clamp seat is provided with the step, and the step is penetrated by the down pressure rod, the between clamp seat and the tongue pressing is connected through the pneumatic cylinder, the output of tongue pressing is provided with the upper pressure rod, the bottom surface of upper pressure rod and the top surface of down pressure rod form the flower tooth structure, the initial state, do not start the pneumatic cylinder, and the upper pressure rod is separated with the down pressure rod, and the extension line of both is set up and is obtuse angle, the use state, start the pneumatic cylinder, drive the output of tongue pressing to be close to the output of clamp seat, until the upper pressure rod and the down pressure rod coaxial and respectively abut on the upper and lower surface of board. Through the pneumatic cylinder drive tongue pressing automatic relative clamp seat rotation, and then realize the board placed on clamp seat is pressed tightly or loosened by tongue pressing, when pressing tightly, the board is clamped through the flower tooth structure, plays the role of antiskid, reduces the indentation, adapts slightly uneven.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical manufacturing technology, and in particular relates to a clamping and positioning device and a laser cutting equipment. Background Technology

[0002] In the field of sheet metal processing, cutting and slicing operations are commonly required. To improve sheet metal utilization, positioning devices are needed to precisely adjust and fix the placement and position of the sheets during processing. Traditional positioning devices often employ clamp structures, manually holding and fixing the sheet metal to the output end of the clamps. However, this traditional clamping method has the following technical drawbacks:

[0003] 1. The contradiction between clamping force and surface damage: The output end of traditional clamps is usually a planar structure. For smooth-surfaced boards, a large clamping force is required to ensure their stability. However, excessive clamping force can easily cause indentations or even deformation on the board surface, affecting the quality of the board.

[0004] 2. Insufficient stability during dynamic processing: During cutting or high-speed cutting, equipment vibration or impact forces are transmitted to the clamping mechanism, causing fluctuations or failure of the clamping force, which in turn leads to displacement of the sheet material. This displacement not only affects processing accuracy but may also increase the scrap rate and production costs.

[0005] To address the aforementioned problems, designing a clamping and positioning device and a laser cutting equipment is an important technical issue that those skilled in the art need to solve. Utility Model Content

[0006] The purpose of this invention is to solve the above-mentioned problems in the prior art and to provide a clamping and positioning device and a laser cutting equipment.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A clamping and positioning device, fixed to a worktable, is used to clamp a sheet metal on the worktable and define the placement position of the sheet metal. It includes at least a clamping seat and a pressure tongue pivotally mounted on the clamping seat, with the pressure tongue located within the width range of the clamping seat. A step for placing the sheet metal is provided at the distal end of the clamping seat, and the step is traversed by at least one downward pressure rod. The clamping seat and the pressure tongue are connected by a cylinder. At least one upward pressure rod is provided on the output end of the pressure tongue. The bottom surface of the upward pressure rod and the top surface of the downward pressure rod form a toothed structure. In the initial state, without the cylinder activated, the distance between the output end of the pressure tongue and the output end of the clamping seat increases, and the upward and downward pressure rods separate, with their extension lines forming an obtuse angle. In the operating state, with the cylinder activated, the output end of the pressure tongue is driven to approach the output end of the clamping seat until the upward and downward pressure rods are coaxial and respectively abut against the upper and lower surfaces of the sheet metal.

[0009] Preferably, a pivot hole and a positioning hole are formed on the side wall of the clamp seat; the pivot hole is coaxially arranged with the through hole on the pressure tongue; a positioning pin passes through the positioning hole and is coaxially arranged with the connecting hole on the pressure tongue in the use state.

[0010] Preferably, the clamp seat has a mounting hole, the input end of the cylinder is located in the mounting hole, and the input end of the cylinder has a through hole; a connecting shaft passes through the side wall of the clamp seat and the through hole of the cylinder input end, and the output end of the cylinder also has a through hole, and the through hole is passed through by another connecting shaft and connected to the through hole on the pressure tongue.

[0011] Preferably, the width of the step is 17±2mm.

[0012] Preferably, the pressure tongue includes an integrally formed input section and an output section; the bottom end of the input section forms a receiving groove for accommodating the cylinder output end, and the groove wall of the receiving groove forms the through hole; the connecting hole is disposed on the input section and located on one side of the through hole; the upper pressure rod is disposed on the output section; the height of the input section is less than the height of the output section, and the upper surface of the input section and the upper surface of the output section form an obtuse angle with a rounded transition; the lower surface of the input section and the lower surface of the output section have a height difference and a straight transition.

[0013] Preferably, the obtuse angle between the input section and the output section is in the range of 165°±2°.

[0014] A laser cutting device for positioning and cutting sheet metal; comprising any of the clamping and positioning devices described above, a worktable, and a cutting machine; the clamping and positioning device is fixed on the worktable, the cutting machine is located above the worktable, and the cutting machine moves relative to the clamping and positioning device to perform high-speed cutting of the sheet metal in the planar direction.

[0015] The advantages of this utility model's technical solution are mainly reflected in:

[0016] The pressure tongue is automatically rotated relative to the clamp seat by a cylinder, thereby pressing or releasing the plate placed on the clamp seat. When pressing, the plate is clamped by the toothed structure, which can prevent slipping, reduce indentation and adapt to slight unevenness.

[0017] When the depressor clamps the plate, the holding force is achieved by pressing the positioning pin on the clamp seat, and the position of the plate is fixed, ensuring the stability of the plate position during operation, facilitating the operation of the plate, and improving the yield of plate manufacturing.

[0018] The misalignment of the receiving slot and the mounting hole allows the cylinder to be tilted within the clamp seat, enabling the cylinder to achieve the maximum rotation of the pressure tongue within its minimum stroke range, thus reducing the overall footprint of the device and improving its space utilization. Attached Figure Description

[0019] Figure 1 : A first perspective view of a preferred embodiment of the present invention;

[0020] Figure 2 : A second perspective view of a preferred embodiment of the present invention;

[0021] Figure 3 Cross-sectional view of a preferred embodiment of this utility model;

[0022] Figure 4 : A structural diagram of the clamp seat of a preferred embodiment of this utility model;

[0023] Figure 5 : A preferred embodiment of the tongue depressor structure of this utility model. Detailed Implementation

[0024] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0025] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0026] This utility model discloses a clamping and positioning device, fixed to a workbench, used to clamp a sheet material on the workbench and define the placement position of the sheet material. Specifically, as follows... Figures 1 to 2 As shown, the clamping and positioning device includes at least a clamp seat 1 and a pressure tongue 2 pivotally mounted on the clamp seat 1, with the pressure tongue 2 located within the width range of the clamp seat 1. Specifically, the two side walls of the clamp seat 1 are spaced apart, and the gap between the two side walls is approximately equal to the width of the pressure tongue 2. The pressure tongue 2 is pivotally mounted between the two side walls of the clamp seat 1 and rotates relative to the clamp seat 1.

[0027] Furthermore, in combination Figure 1 and Figure 4 As shown, a pivot hole 101 is formed on the side wall of the clamp seat 1. The pivot hole 101 is coaxially arranged with the through hole 201 on the pressure tongue 2. The pivot connection between the pressure tongue 2 and the clamp seat 1 can be achieved by connecting the pivot hole 101 and the through hole 201 through a pivot.

[0028] A positioning hole is also formed on the side wall of the clamp seat 1, and a positioning pin 13 passes through the positioning hole and is coaxially arranged with the connecting hole 201 on the pressure tongue 2 in the use state. In the use state, pressing the positioning pin 13 causes its output end to be inserted into the connecting hole 201, limiting the movable position of the pressure tongue 2, that is, fixing the pressure tongue 2 to maintain the force applied to the board for a period of time and fix the position of the board to ensure the stability of the board position during operation.

[0029] Furthermore, such as Figure 3As shown, the clamp seat 1 and the pressure tongue 2 are connected by a cylinder 3. Specifically, the clamp seat 1 has a mounting hole 10, and the input end of the cylinder 3 is located in the mounting hole 10. The input end of the cylinder 3 has a through hole, and a connecting shaft passes through the side wall of the clamp seat 1 and the through hole of the input end of the cylinder 3; the output end of the cylinder 3 also has a through hole, and this through hole is passed through by another connecting shaft and connected to the through hole 220 on the pressure tongue 2.

[0030] The cylinder 3 drives the pressure tongue 2 to rotate automatically relative to the clamp seat 1, thereby enabling the plate placed on the clamp seat 1 to be pressed or released by the pressure tongue 2; and when the pressure tongue presses the plate, the positioning pin 13 is pressed to achieve a holding force, so as to stably clamp the plate, facilitate the operation of the plate, and improve the yield of plate manufacturing.

[0031] Combination Figure 2 and Figure 5 As shown, the pressure tongue 2 includes an integrally formed input section 22 and output section 23. The bottom end of the input section 22 forms a receiving groove 221 to accommodate the output end of the cylinder 3, and a through hole 220 is formed on the groove wall of the receiving groove 221; that is, the connecting hole is provided on the input section 22 and located on one side of the through hole 220. The receiving groove 221 and the mounting hole 10 are preferably offset, so that the cylinder 3 is tilted within the clamp seat 1, so that the cylinder 3 can achieve the maximum range of rotation of the pressure tongue within the minimum stroke range, reducing the overall footprint of the device and improving the space utilization of the overall device. The upper pressure rod 21 is provided on the output section 23 and is fastened to the output section 23.

[0032] Furthermore, in this invention, it is preferable that the height of the input portion 22 is less than the height of the output portion 23. An obtuse angle is formed between the upper surface of the input portion 22 and the upper surface of the output portion 23, with a rounded transition; even further, the range of the obtuse angle between the input portion 22 and the output portion 23 is preferably 165°±2°. The lower surface of the input portion 22 and the lower surface of the output portion 23 have a height difference with a straight transition. The height difference between the input portion 22 and the output portion 23 in the pressure tongue 2, and the included angle between them, facilitate the rotation of the pressure tongue 2 around a pivot, thereby adjusting the distance between the output end of the pressure tongue 2 and the clamp seat 1, realizing the clamping or releasing of the plate.

[0033] Furthermore, at least one upper pressure rod 21 is provided on the output end of the pressure tongue 2; the bottom surface of the upper pressure rod 21 is formed with a serrated structure.

[0034] like Figures 1 to 4As shown, the distal end of the clamping seat 1 is provided with a step 11 for placing the plate, and the width of the step 11 is 17±2mm. The width of the plate being clamped is limited by the step 11, and the width of the step 11 can also be adjusted according to usage requirements, which is not specifically limited here. The step 11 is penetrated by at least one downward pressure rod 12, and the downward pressure rod 12 is fastened to the step 11. The top surface of the downward pressure rod 12 has a serrated structure; furthermore, the serrated structure on the downward pressure rod 12 is preferably staggered with the serrated structure on the upper pressure rod 21, that is, the serrated structures on the two are preferably not one-to-one, so as to avoid forming indentations when bending the plate or on the surface of the plate.

[0035] In the initial state, with cylinder 3 not activated, the distance between the output end of the pressure tongue 2 and the output end of the clamp seat 1 increases, and the upper pressure rod 21 and the lower pressure rod 12 separate, with their extension lines forming an obtuse angle. In the operating state, cylinder 3 is activated, driving the output end of the pressure tongue 2 towards the output end of the clamp seat 1 until the upper pressure rod 21 and the lower pressure rod 12 are coaxial and respectively abut against the upper and lower surfaces of the material. In the operating state, the serrated teeth on the upper pressure rod 21 and the lower pressure rod 12 clamp the material, providing anti-slip properties, reducing indentations, and adapting to slight unevenness. Specifically, the serrated teeth engage with the material surface, significantly increasing friction and preventing the material from sliding during processing. Multiple contact points on the serrated structure disperse the clamping force, preventing large-area damage to the material surface. The serrations partially compensate for minor unevenness or burrs on the material surface, maintaining uniform clamping.

[0036] This utility model also discloses a laser cutting device for positioning and cutting sheet metal; it includes any of the clamping and positioning devices described above, a worktable, and a cutting machine. The clamping and positioning device is fixed to the worktable, the cutting machine is located above the worktable, and the cutting machine moves relative to the clamping and positioning device to perform high-speed cutting of the sheet metal in the planar direction. The worktable provides a plane for the clamping and positioning device and the sheet metal. The cutting machine is a known structure and will not be described in detail here. Through the clamping and positioning device and its toothed structure, under high-speed cutting and vibration conditions, the toothed structure effectively resists lateral displacement, improves stability, and provides vibration and impact resistance. Simultaneously, the mechanical engagement of the teeth on the toothed structure reduces slight loosening of the sheet metal after clamping, thus suppressing micro-displacement.

[0037] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A clamping and positioning device, fixed to a worktable, for clamping a sheet metal on the worktable and defining the placement position of the sheet metal; characterized in that: The device includes at least a clamp seat (1) and a pressure tongue (2) pivotally mounted on the clamp seat (1), with the pressure tongue (2) located within the width of the clamp seat (1). A step (11) for placing a plate is provided at the distal end of the clamp seat (1), the step (11) being pierced by at least one downward pressure rod (12). The clamp seat (1) and the pressure tongue (2) are connected by a cylinder (3). At least one upward pressure rod (21) is provided on the output end of the pressure tongue (2). The bottom surface of the upward pressure rod (21) is flush with the plate. The top surface of the lower pressure rod (12) has a toothed structure. In the initial state, the cylinder (3) is not activated, the distance between the output end of the pressure tongue (2) and the output end of the clamp seat (1) increases, and the upper pressure rod (21) and the lower pressure rod (12) are separated, with their extension lines set at an obtuse angle. In the working state, the cylinder (3) is activated, driving the output end of the pressure tongue (2) to approach the output end of the clamp seat (1) until the upper pressure rod (21) and the lower pressure rod (12) are coaxial and respectively abut against the upper and lower surfaces of the plate.

2. The clamping and positioning device according to claim 1, characterized in that: A pivot hole (101) and a positioning hole are formed on the side wall of the clamp seat (1); the pivot hole (101) is coaxially arranged with the through hole (201) on the pressure tongue (2); a positioning pin (13) passes through the positioning hole and is coaxially arranged with the connecting hole (201) on the pressure tongue (2) in the use state.

3. The clamping and positioning device according to claim 2, characterized in that: A mounting hole (10) is formed on the clamp seat (1), the input end of the cylinder (3) is located in the mounting hole (10), and a through hole is formed on the input end of the cylinder (3); a connecting shaft passes through the side wall of the clamp seat (1) and the through hole of the input end of the cylinder (3), and a through hole is also formed on the output end of the cylinder (3), and the through hole is passed through by another connecting shaft and connected to the through hole (220) on the pressure tongue (2).

4. The clamping and positioning device according to claim 3, characterized in that: The width of the step (11) is 17±2mm.

5. The clamping and positioning device according to claim 4, characterized in that: The pressure tongue (2) includes an integrally formed input part (22) and output part (23); the bottom end of the input part (22) forms a receiving groove (221) for accommodating the output end of the cylinder (3), and the through hole (220) is formed on the groove wall of the receiving groove (221); the connecting hole is provided on the input part (22) and located on one side of the through hole (220); the upper pressure rod (21) is provided on the output part (23); the height of the input part (22) is less than the height of the output part (23), and an obtuse angle is formed between the upper surface of the input part (22) and the upper surface of the output part (23), and the transition is rounded; the lower surface of the input part (22) and the lower surface of the output part (23) have a height difference and a straight transition.

6. The clamping and positioning device according to claim 5, characterized in that: The obtuse angle between the input section (22) and the output section (23) is in the range of 165°±2°.

7. A laser cutting device for positioning and cutting sheet metal; characterized in that: The device includes a clamping and positioning device as described in any one of claims 1 to 6, a worktable, and a cutting machine; the clamping and positioning device is fixed on the worktable, the cutting machine is located above the worktable, and the cutting machine moves relative to the clamping and positioning device to perform high-speed cutting of the sheet metal in the planar direction.

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