A product positioning jig

Abstract

The utility model provides a kind of product positioning fixture, including fixed plate, the upside of the fixed plate is equipped with placement shell, the inner wall of the placement shell is longitudinally slidingly fitted with longitudinal drive plate, the inner wall of the placement shell is transversely slidingly fitted with horizontal sliding plate, the upside of the longitudinal drive plate is equipped with trapezoidal extrusion slot, the upside of the horizontal sliding plate is fixedly connected with the guide rod matched with trapezoidal extrusion slot, the upside of the fixed plate is equipped with telescopic cylinder. By setting up longitudinal clamping component and horizontal synchronous clamping structure driven by cylinder, cylinder pushes longitudinal driving component to slide when working, on the one hand, directly drive longitudinal movable structure and positioning plate to realize longitudinal clamping, on the other hand, through the linkage synchronous drive of trapezoidal extrusion slot and tension spring, horizontal movable structure and positioning plate are completed transverse clamping, without manual auxiliary positioning and manual operation throughout, this process greatly reduces manual intervention, effectively improves the problem of large fluctuation of manual positioning accuracy and low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a product positioning fixture. Background Technology

[0002] In the industrial production field, product positioning fixtures are key equipment to ensure machining accuracy and are widely used in parts assembly, testing and other processes. Currently, most positioning fixtures on the market require manual assistance to complete the positioning operation: the operator must first manually adjust the position of the workpiece to ensure that it is aligned with the reference surface, and then fix the workpiece by manually tightening the clamp or activating the clamping component in one direction. This operation mode is more common in small-batch production scenarios, and some fixtures can only achieve clamping and fixing in one direction, which is difficult to meet the multi-directional positioning needs of complex workpieces.

[0003] However, traditional positioning fixtures with manual positioning and single clamping methods have shortcomings: manual positioning is easily affected by the operator's experience and fatigue, resulting in large fluctuations in positioning accuracy and increasing the risk of workpiece processing errors; manual clamping or single-direction clamping is inefficient and cannot meet the high-efficiency operation requirements of automated production lines, and lacks auxiliary fixing structures, making the workpiece prone to displacement due to vibration during processing. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a product positioning fixture to solve the problems mentioned in the background. This utility model has a novel structure. By setting up a cylinder-driven longitudinal clamping component and a transverse synchronous clamping structure, the cylinder pushes the longitudinal driving component to slide during operation. On the one hand, it directly drives the longitudinal movable structure to cooperate with the positioning plate to achieve longitudinal clamping. On the other hand, the trapezoidal extrusion groove and the tension spring drive the transverse movable structure to cooperate with the positioning plate to complete transverse clamping. The entire process does not require manual positioning assistance or manual operation. This process greatly reduces human intervention and effectively improves the problems of large fluctuations in accuracy and low efficiency of manual positioning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a product positioning fixture includes a fixed plate, a placement shell mounted on the upper side of the fixed plate, a longitudinal drive plate slidably fitted to the inner wall of the placement shell, a transverse sliding plate slidably fitted to the inner wall of the placement shell, a trapezoidal extrusion groove on the upper side of the longitudinal drive plate, a guide rod cooperating with the trapezoidal extrusion groove fixedly connected to the upper side of the transverse sliding plate, a telescopic cylinder mounted on the upper side of the fixed plate, a longitudinal movable plate fixedly connected to one end of the longitudinal drive plate, two longitudinal positioning plates cooperating with the longitudinal movable plates fixedly connected to the upper side of the fixed plate, a transverse positioning plate fixedly connected to the upper side of the fixed plate, a transverse movable plate cooperating with the transverse positioning plate fixedly connected to one side of the transverse sliding plate, and a pressing and fixing mechanism provided on the opposite side of the transverse positioning plate and the transverse movable plate.

[0006] Furthermore, the output end of the telescopic cylinder is fixedly connected to one end of the longitudinal drive plate, and the two longitudinal positioning plates are respectively fixedly connected to both sides of the telescopic cylinder.

[0007] Furthermore, the pressing and fixing mechanism includes a mounting plate fixedly connected to the opposite side of the transverse positioning plate and the transverse movable plate. A lifting cylinder is mounted on the upper side of the mounting plate. Mounting frames are mounted on the upper ends of both the transverse positioning plate and the transverse movable plate. A pressure rod arm is hinged to the output end of the lifting cylinder. A connecting rod is provided between the mounting frame and the pressure rod arm. A rubber pressure head is detachably connected to one end of the pressure rod arm.

[0008] Furthermore, the two ends of the connecting rod are rotatably engaged with the pressure rod arm and the mounting bracket, respectively, and the rubber pressure head is installed on the lower side of the pressure rod arm.

[0009] Furthermore, rubber pads are installed on the adjacent sides of both the longitudinal and transverse movable plates.

[0010] Furthermore, a connecting plate is fixedly connected to one end of the horizontal sliding plate. The connecting plate is slidably fitted on the inner wall of the placement shell. Two tension springs are fixedly connected to one side of the connecting plate, and one end of the two tension springs is fixedly connected to one side of the inner wall of the placement shell.

[0011] Furthermore, a dovetail groove is formed on the upper side of the fixing plate inside the housing, and a dovetail block is fixedly connected to the lower side of the connecting plate, with the dovetail block slidingly fitted on the inner wall of the dovetail groove.

[0012] Furthermore, positioning and mounting holes are provided at the four corners of the upper side of the fixing plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model sets up a cylinder-driven longitudinal clamping component and a transverse synchronous clamping structure. During operation, the cylinder pushes the longitudinal driving component to slide, which directly drives the longitudinal movable structure to cooperate with the positioning plate to achieve longitudinal clamping. On the other hand, the trapezoidal extrusion groove and the tension spring drive the transverse movable structure to cooperate with the positioning plate to complete transverse clamping. The entire process does not require manual positioning or manual operation. This process greatly reduces human intervention and effectively improves the problems of large fluctuations in accuracy and low efficiency of manual positioning.

[0015] 2. By setting up a downward pressing and fixing mechanism, this utility model can further fix the workpiece from above after it has been positioned in the longitudinal and transverse directions, thus avoiding displacement of the workpiece due to vibration during processing. It improves the problem of insufficient fixing stability caused by the traditional fixture clamping in only one direction, further ensuring processing accuracy. At the same time, the rubber pressure head can avoid damaging the workpiece, and the detachable design facilitates subsequent maintenance and replacement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a product positioning fixture according to the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the placement shell of a product positioning fixture according to the present invention.

[0018] Figure 3 This is a schematic diagram of the longitudinal drive plate connection structure of a product positioning fixture according to the present invention;

[0019] Figure 4 This is a schematic diagram of the horizontal sliding plate separation structure of a product positioning fixture according to the present invention;

[0020] Figure 5 This is a schematic diagram of the pressing and fixing mechanism of a product positioning fixture according to the present invention.

[0021] In the diagram: 1. Fixed plate; 2. Housing; 3. Longitudinal drive plate; 4. Transverse sliding plate; 5. Trapezoidal extrusion groove; 6. Guide rod; 7. Telescopic cylinder; 8. Longitudinal movable plate; 9. Longitudinal positioning plate; 10. Transverse positioning plate; 11. Transverse movable plate; 12. Downward pressing and fixing mechanism; 121. Mounting plate; 122. Lifting cylinder; 123. Mounting bracket; 124. Pressure rod arm; 125. Connecting rod; 126. Rubber pressure head; 13. Rubber pad; 14. Connecting plate; 15. Tension spring; 16. Dovetail groove; 17. Dovetail block; 18. Positioning mounting hole. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1 to 5 This utility model provides a technical solution: a product positioning fixture, including a fixed plate 1, a placement shell 2 mounted on the upper side of the fixed plate 1, a longitudinal drive plate 3 longitudinally slidingly fitted on the inner wall of the placement shell 2, a transverse sliding plate 4 transversely slidingly fitted on the inner wall of the placement shell 2, a trapezoidal extrusion groove 5 formed on the upper side of the longitudinal drive plate 3, a guide rod 6 cooperating with the trapezoidal extrusion groove 5 fixedly connected to the upper side of the transverse sliding plate 4, a telescopic cylinder 7 mounted on the upper side of the fixed plate 1, a longitudinal movable plate 8 fixedly connected to one end of the longitudinal drive plate 3, two longitudinal positioning plates 9 cooperating with the longitudinal movable plate 8 fixedly connected to the upper side of the fixed plate 1, a transverse positioning plate 10 fixedly connected to the upper side of the fixed plate 1, a transverse movable plate 11 cooperating with the transverse positioning plate 10 fixedly connected to one side of the transverse sliding plate 4, and a pressing and fixing mechanism 12 provided on the opposite side of the transverse positioning plate 10 and the transverse movable plate 11. The output end of the telescopic cylinder 7 is fixedly connected to one end of the longitudinal drive plate 3, and the two longitudinal positioning plates 9 are respectively fixedly connected to both sides of the telescopic cylinder 7. The workpiece is placed on the placement shell 2, and the telescopic cylinder 7 is activated. Its output end pulls the longitudinal drive plate 3 to slide longitudinally along the placement shell 2. The longitudinal drive plate 3 drives the longitudinal movable plate 8 to move synchronously, cooperating with the two longitudinal positioning plates 9 on the fixed plate 1 to clamp and position the workpiece longitudinally, preventing longitudinal displacement of the workpiece. At the same time, the trapezoidal extrusion groove 5 on the longitudinal drive plate 3 moves with it, canceling the limit on the guide rod 6 on the transverse sliding plate 4, so that the transverse sliding plate 4 slides laterally along the placement shell 2 under the action of the tension spring 15, thereby driving the transverse movable plate 11 to move, cooperating with the transverse positioning plate 10 to realize the transverse clamping and positioning of the workpiece, completing the multi-directional preliminary fixation of the workpiece, improving positioning efficiency and accuracy, and reducing manual intervention.

[0024] In this embodiment, the pressing and fixing mechanism 12 includes a mounting plate 121 fixedly connected to the opposite side of the transverse positioning plate 10 and the transverse movable plate 11. A lifting cylinder 122 is mounted on the upper side of the mounting plate 121. Mounting brackets 123 are mounted on the upper ends of both the transverse positioning plate 10 and the transverse movable plate 11. A pressure rod arm 124 is hinged to the output end of the lifting cylinder 122. A connecting rod 125 is provided between the mounting bracket 123 and the pressure rod arm 124. A rubber pressure head 126 is detachably connected to one end of the pressure rod arm 124. The two ends of the connecting rod 125 are rotatably engaged with the pressure rod arm 124 and the mounting bracket 123, respectively. The rubber pressure head 126 is mounted on the lower side of the pressure rod arm 124. After the workpiece is positioned longitudinally and laterally, the lifting cylinder 122 on the mounting plate 121 of the pressing and fixing mechanism 12 is activated. Its output end pushes the pressure rod arm 124. Under the rotational cooperation of the mounting frame 123 and the connecting rod 125, the pressure rod arm 124 rotates around the hinge point, driving the rubber pressure head 126 on the lower side to move downward and press down to fix the upper side of the workpiece. The rubber pressure head 126 can avoid damaging the workpiece and is detachable for easy replacement and maintenance. This process further enhances the workpiece fixing stability and prevents the accuracy from being affected by vibration displacement during processing.

[0025] In this embodiment, rubber pads 13 are installed on the adjacent sides of both the longitudinal movable plate 8 and the transverse movable plate 11. A connecting plate 14 is fixedly connected to one end of the transverse sliding plate 4, and the connecting plate 14 slidably fits against the inner wall of the housing 2. Two tension springs 15 are fixedly connected to one side of the connecting plate 14, with one end of each spring fixedly connected to one side of the inner wall of the housing 2. A dovetail groove 16 is formed on the upper side of the fixed plate 1 inside the housing 2, and a dovetail block 17 is fixedly connected to the lower side of the connecting plate 14, slidably fitting against the inner wall of the dovetail groove 16. Positioning mounting holes 18 are formed at the four corners of the upper side of the fixed plate 1. The rubber pads 13 on the longitudinal movable plate 8 and the transverse movable plate 11 can buffer the pressure when clamping the workpiece, protect the workpiece surface from being scratched, and increase the friction to improve the clamping stability. When the transverse sliding plate 4 moves, the connecting plate 14 slides along the inner wall of the placement shell 2, and the dovetail block 17 slides in the dovetail groove 16 to ensure the smoothness of the transverse sliding plate 4's transverse movement and avoid deviation. When the telescopic cylinder 7 is reset, the tension spring 15 is stretched and stored. After the workpiece is placed, the telescopic cylinder 7 drives the longitudinal drive plate 3 to move, pulling the transverse sliding plate 4 to move and clamp the workpiece laterally. The positioning mounting holes 18 at the four corners of the fixed plate 1 facilitate the overall installation and fixation of the fixture on the production equipment to ensure the stability of the fixture during operation.

[0026] When using the device, first fix the fixture through the positioning mounting hole 18 of the fixing plate 1, place the workpiece on the placement shell 2, start the telescopic cylinder 7, pull the longitudinal drive plate 3 to slide longitudinally, on the one hand, the longitudinal movable plate 8 cooperates with the longitudinal positioning plate 9 to achieve longitudinal clamping of the workpiece, on the other hand, the trapezoidal extrusion groove 5 removes the limit on the guide rod 6, and under the drive of the tension spring 15, the transverse sliding plate 4 slides laterally, allowing the transverse movable plate 11 to cooperate with the transverse positioning plate 10 to complete the transverse clamping of the workpiece. The rubber pad 13 protects the workpiece and enhances the clamping force. Then start the lifting cylinder 122, and through the cooperation of the pressure rod arm 124, the connecting rod 125 and the mounting frame 123, the rubber pressure head 126 presses down to fix the workpiece. After processing is completed, the telescopic cylinder 7 resets, the trapezoidal extrusion groove 5 drives the transverse sliding plate 4 and the transverse movable plate 11 to reset, and at the same time the longitudinal drive plate 3 drives the longitudinal movable plate 8 to reset, and the workpiece can be taken out. The whole process is automated, which improves the positioning accuracy and processing efficiency, protects the workpiece and facilitates maintenance.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A product positioning fixture, comprising a fixing plate (1), characterized in that: A placement shell (2) is installed on the upper side of the fixed plate (1). A longitudinal drive plate (3) is longitudinally slidably fitted on the inner wall of the placement shell (2). A transverse sliding plate (4) is transversely slidably fitted on the inner wall of the placement shell (2). A trapezoidal extrusion groove (5) is opened on the upper side of the longitudinal drive plate (3). A guide rod (6) that cooperates with the trapezoidal extrusion groove (5) is fixedly connected to the upper side of the transverse sliding plate (4). A telescopic cylinder (7) is installed on the upper side of the fixed plate (1). A longitudinal movable plate (8) is fixedly connected to one end of the longitudinal drive plate (3). Two longitudinal positioning plates (9) that cooperate with the longitudinal movable plate (8) are fixedly connected to the upper side of the fixed plate (1). A transverse positioning plate (10) is fixedly connected to the upper side of the fixed plate (1). A transverse movable plate (11) that cooperates with the transverse positioning plate (10) is fixedly connected to one side of the transverse sliding plate (4). A pressing and fixing mechanism (12) is provided on the opposite side of the transverse positioning plate (10) and the transverse movable plate (11).

2. The product positioning fixture according to claim 1, characterized in that: The output end of the telescopic cylinder (7) is fixedly connected to one end of the longitudinal drive plate (3), and the two longitudinal positioning plates (9) are fixedly connected to both sides of the telescopic cylinder (7).

3. The product positioning fixture according to claim 1, characterized in that: The pressing and fixing mechanism (12) includes a mounting plate (121) fixedly connected to the opposite side of the transverse positioning plate (10) and the transverse movable plate (11). A lifting cylinder (122) is installed on the upper side of the mounting plate (121). A mounting bracket (123) is installed on the upper end of both the transverse positioning plate (10) and the transverse movable plate (11). A pressure rod arm (124) is hinged to the output end of the lifting cylinder (122). A connecting rod (125) is provided between the mounting bracket (123) and the pressure rod arm (124). A rubber pressure head (126) is detachably connected to one end of the pressure rod arm (124).

4. A product positioning fixture according to claim 3, characterized in that: The two ends of the connecting rod (125) are rotatably engaged with the pressure arm (124) and the mounting bracket (123) respectively, and the rubber pressure head (126) is installed on the lower side of the pressure arm (124).

5. A product positioning fixture according to claim 1, characterized in that: Rubber pads (13) are installed on the side of the longitudinal movable plate (8) and the transverse movable plate (11) that are close to each other.

6. A product positioning fixture according to claim 1, characterized in that: One end of the horizontal sliding plate (4) is fixedly connected to a connecting plate (14), which slides on the inner wall of the placement shell (2). Two tension springs (15) are fixedly connected to one side of the connecting plate (14), and one end of the two tension springs (15) is fixedly connected to one side of the inner wall of the placement shell (2).

7. A product positioning fixture according to claim 6, characterized in that: The upper side of the fixing plate (1) is provided with a dovetail groove (16) inside the placement shell (2), and the lower side of the connecting plate (14) is fixedly connected with a dovetail block (17), which slides in fit on the inner wall of the dovetail groove (16).

8. A product positioning fixture according to claim 1, characterized in that: The fixing plate (1) has positioning and mounting holes (18) at the four corners on the upper side.

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