Anti-floating workpiece positioning structure

Abstract

The utility model relates to a kind of workpiece positioning structure of preventing floating, comprising: two positioning components of relatively arranged;Positioning component includes support plate, slidingly connected support plate's moving plate, detachably installed at the opposite ends of moving plate's pressing plate, and the push-pull element of connecting support plate and moving plate;Pressing plate includes the main part of detachably connected moving plate, and the side surface positioning part extending from the side of main part, and the top surface positioning part connected in the top of side surface positioning part;Positioning space is formed between side surface positioning part and top surface positioning part, for the corner of plate piece is embedded.The above-mentioned workpiece positioning structure of preventing floating, simple structure, convenient to use, two positioning components are positioned from the opposite ends of plate piece respectively, side surface positioning part abuts plate piece side surface, top surface positioning part abuts plate piece top surface, realize the compression positioning of plate piece, effectively prevent the floating of plate piece, can greatly improve clamping accuracy and processing quality.

Description

Technical Field

[0001] This utility model relates to the field of workpiece positioning structure technology, and in particular to a workpiece positioning structure that prevents floating. Background Technology

[0002] In the machining industry, when workpieces undergo cutting operations such as milling, drilling, and tapping, they are easily affected by various factors such as cutting forces, vibrations, and cutting fluid impacts. These factors can all cause the workpiece to vibrate or oscillate, and in severe cases, it may even detach from the preset positioning reference, resulting in a "floating" phenomenon. This "floating" phenomenon not only significantly reduces machining accuracy, leading to worsening workpiece dimensions and loss of form and position tolerances, but may also cause machining failures or even scrap the parts.

[0003] Currently, the industry typically uses vacuum chucks to fix sheet metal workpieces, using strong negative pressure suction to secure the workpiece to the machining table. However, for workpieces with rough surfaces, complex geometries, or those requiring through-hole machining, vacuum chucks struggle to create an effective sealed environment, leading to localized negative pressure leakage and a significant decrease in suction force. This results in unreliable workpiece positioning and fails to meet the demands of high-precision machining. Utility Model Content

[0004] Based on this, the present invention provides a workpiece positioning structure to prevent floating. The structure is simple and easy to use. Two positioning components position the workpiece from opposite ends. The side positioning part abuts against the side of the workpiece, and the top positioning part abuts against the top of the workpiece, thereby achieving clamping and positioning of the workpiece, effectively preventing the workpiece from floating, and greatly improving clamping accuracy and processing quality.

[0005] To achieve the objectives of this utility model, the following technical solution is adopted: A workpiece positioning structure for preventing floating includes: two positioning components arranged opposite to each other; each positioning component includes a support plate, a movable plate slidably connected to the support plate, a pressure plate detachably installed at opposite ends of the movable plate, and a push-pull element connecting the support plate and the movable plate; the pressure plate includes a main body detachably connected to the movable plate, a side positioning part extending outward from one side of the main body, and a top positioning part connected to the top of the side positioning part; a positioning space is formed between the side positioning part and the top positioning part for inserting the corner of the plate; the side positioning part abuts against the side of the plate, and the top positioning part abuts against the top surface of the plate.

[0006] The above-mentioned anti-floating workpiece positioning structure is simple in structure and easy to use. The two positioning components position the workpiece from opposite ends. The side positioning part abuts against the side of the workpiece, and the top positioning part abuts against the top of the workpiece, thereby achieving clamping and positioning of the workpiece, effectively preventing the workpiece from floating, and greatly improving clamping accuracy and processing quality.

[0007] In one embodiment, the inner side of the side positioning portion away from the main body portion has a chamfer.

[0008] In one embodiment, an avoidance groove is provided on the inner side of the connection between the side positioning part and the main body part, and the avoidance groove is cylindrical.

[0009] In one embodiment, guide rails are connected to opposite ends of the top surface of the support plate, and sliders are connected to opposite ends of the bottom surface of the movable plate, with the sliders matched to the guide rails.

[0010] In one embodiment, the support plate is also connected to limit pins at opposite ends of the guide rail, and the slider is located between the two limit pins, which are used to abut against the slider.

[0011] In one embodiment, the push-pull element is a push-pull cylinder, the cylinder of the push-pull element is connected to a support plate, and the piston rod of the push-pull element is connected to a moving plate.

[0012] In one embodiment, the positioning component further includes a slotted photoelectric switch mounted on a support plate and a sensing sheet mounted on one side of a movable plate; the sensing sheet is used to pass through the slot of the slotted photoelectric switch. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the working state of the anti-floating workpiece positioning structure according to one embodiment of the present invention. Figure 2 for Figure 1 A schematic diagram showing the anti-floating workpiece positioning structure and the workpiece. Figure 3 for Figure 1 A three-dimensional schematic diagram of the positioning components in the anti-floating workpiece positioning structure shown; Figure 4 for Figure 3 A three-dimensional schematic diagram of the positioning component in the anti-floating workpiece positioning structure from another perspective; Figure 5 for Figure 3 An exploded view of the positioning components in the anti-floating workpiece positioning structure shown.

[0014] Attached image annotations: 10-Positioning component, 11-Support plate, 110-Guide rail, 111-Limit pin, 12-Moving plate, 120-Slider, 13-Pressure plate, 131-Main body, 132-Side positioning part, 133-Top positioning part, 134-Chamfer, 135-Allowing groove, 14-Push-pull element, 15-Slot-type photoelectric switch, 16-Sensing sheet; 20-Plate. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0016] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0018] Please see Figures 1 to 5 This invention provides an anti-floating workpiece positioning structure, comprising two positioning components 10 arranged opposite to each other, with the plate 20 to be processed clamped between the two positioning components 10. In actual use, the plate 20 still uses a vacuum suction cup as the main clamping method, and the two positioning components 10 position the plate 20 from opposite ends, further improving the positioning effect.

[0019] The positioning assembly 10 includes a support plate 11, a movable plate 12 slidably connected to the support plate 11, a pressure plate 13 detachably installed at opposite ends of the movable plate 12, a push-pull element 14 connecting the support plate 11 and the movable plate 12, a slotted photoelectric switch 15 installed on the support plate 11, and a sensing plate 16 installed on one side of the movable plate 12; the sensing plate 16 is used to pass through the slot of the slotted photoelectric switch 15.

[0020] Specifically, such as Figure 4 As shown, the pressure plate 13 is L-shaped and includes a main body 131 detachably connected to the movable plate 12, a side positioning part 132 extending outward from one side of the main body 131, and a top positioning part 133 connected to the top of the side positioning part 132. A positioning space is formed between the side positioning part 132 and the top positioning part 133 for the corners of the plate 20 to be inserted. The side positioning part 132 abuts against the side of the plate 20, and the top positioning part 133 abuts against the top surface of the plate 20, thereby achieving the pressing and positioning of the plate 20. By pressing and positioning the four corners of the plate 20, the plate 20 is effectively prevented from floating, which can greatly improve the clamping accuracy and processing quality.

[0021] Furthermore, the inner side of the side positioning part 132 away from the main body part 131 has a chamfer 134, which facilitates the guide plate 20 to match and enter the positioning space.

[0022] Furthermore, an avoidance groove 135 is provided on the inner side of the connection between the side positioning part 132 and the main body part 131. The avoidance groove 135 is cylindrical and is used to avoid the corners of the plate 20, so as to avoid damage to the appearance of the plate 20.

[0023] In this embodiment, guide rails 110 are connected to opposite ends of the top surface of the support plate 11, and sliders 120 are connected to opposite ends of the bottom surface of the movable plate 12. The sliders 120 are matched and connected to the guide rails 110 to achieve a sliding connection between the support plate 11 and the movable plate 12. Furthermore, the support plate 11 is also connected to limit pins 111 corresponding to opposite ends of the guide rails 110. The slider 120 is located between the two limit pins 111, and the limit pins 111 are used to abut against the slider 120 to limit the movement range of the slider 120.

[0024] In this embodiment, the push-pull element 14 is a push-pull cylinder, the cylinder of the push-pull element 14 is connected to the support plate 11, and the piston rod of the push-pull element 14 is connected to the moving plate 12.

[0025] Understandably, in other embodiments, the push-pull element 14 can also be a linear motor or other linear drive element, as long as it can drive the moving plate 12 to move, and is not limited to the push-pull cylinder mentioned in this embodiment.

[0026] The above-mentioned anti-floating workpiece positioning structure is simple in structure and easy to use. The two positioning components 10 are positioned from the opposite ends of the plate 20 respectively. The side positioning part 132 abuts against the side of the plate 20, and the top positioning part 133 abuts against the top surface of the plate 20, thereby achieving the clamping and positioning of the plate 20, effectively preventing the plate 20 from floating, and greatly improving the clamping accuracy and processing quality.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A workpiece positioning structure to prevent floating, characterized in that, include: Two positioning components are arranged opposite to each other; the positioning components include a support plate, a movable plate that is slidably connected to the support plate, a pressure plate that is detachably installed at opposite ends of the movable plate, and a push-pull element that connects the support plate and the movable plate; the pressure plate includes a main body that is detachably connected to the movable plate, a side positioning part that extends outward from one side of the main body, and a top positioning part that is connected to the top of the side positioning part; a positioning space is formed between the side positioning part and the top positioning part for the corner of the plate to be inserted; the side positioning part is used to abut against the side of the plate, and the top positioning part is used to abut against the top surface of the plate.

2. The anti-floating workpiece positioning structure according to claim 1, characterized in that, The inner side of the side positioning part away from the main body has a chamfer.

3. The anti-floating workpiece positioning structure according to claim 1, characterized in that, An avoidance groove is provided on the inner side of the connection between the side positioning part and the main body part, and the avoidance groove is cylindrical.

4. The anti-floating workpiece positioning structure according to claim 1, characterized in that, Guide rails are connected to opposite ends of the top surface of the support plate, and sliders are connected to opposite ends of the bottom surface of the movable plate. The sliders are matched and connected to the guide rails.

5. The anti-floating workpiece positioning structure according to claim 4, characterized in that, The support plate is also connected to limit pins at opposite ends of the guide rail. The slider is located between the two limit pins, which are used to abut against the slider.

6. The anti-floating workpiece positioning structure according to claim 1, characterized in that, The push-pull element is a push-pull cylinder. The cylinder barrel of the push-pull element is connected to a support plate, and the piston rod of the push-pull element is connected to a moving plate.

7. The anti-floating workpiece positioning structure according to claim 1, characterized in that, The positioning assembly also includes a slotted photoelectric switch mounted on the support plate and a sensing plate mounted on one side of the movable plate; the sensing plate is used to pass through the slot of the slotted photoelectric switch.

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