Workpiece positioning and placement fixture

Abstract

The utility model relates to tool fixture technical field especially relates to a work piece positioning placement jig. Including base, base rotationally connected have and place seat, place seat detachably connected have mounting panel, mounting panel detachably connected have protective housing and hydraulic pressure rod, and protective housing and hydraulic pressure rod mutually cooperate, and hydraulic pressure rod telescopic end connection have connecting plate, and connecting plate are connected with connecting rod, and connecting rod are connected with clamping plate, and base is set up and has limit slot, and limit slot rotationally connected have gear, and base is connected with step motor, and step motor output end connection have pivot, and pivot is connected with gear, and place seat is connected with gear ring, and gear ring with limit slot swing joint, and gear and gear ring interlock. Adopt the utility model can solve the problem of low efficiency caused by frequent disassembly and assembly workpiece when multi -surface processing, and through motor accurate control rotation angle, greatly reduce the repeat positioning error, guarantee the position precision of each machining surface of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a workpiece positioning and placement fixture. Background Technology

[0002] Against the backdrop of modern industrial production developing towards high precision, high efficiency, and diversification, workpiece positioning fixtures, as key auxiliary equipment in the production process, directly affect product quality and production efficiency.

[0003] When traditional fixtures require machining of workpieces from multiple angles, operators must disassemble the positioned workpiece, adjust its orientation, and reinstall it, resulting in low production efficiency. Utility Model Content

[0004] The present invention aims to provide a workpiece positioning and placement fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A workpiece positioning fixture includes a base, a placement seat rotatably connected to the base, a mounting plate detachably connected to the placement seat, a protective shell and a hydraulic rod detachably connected to the mounting plate, the protective shell and the hydraulic rod cooperating with each other, a connecting plate connected to the telescopic end of the hydraulic rod, a connecting rod connected to the connecting plate, a clamping plate connected to the connecting rod, a limiting groove formed in the base, a gear rotatably connected to the limiting groove, a stepper motor connected to the base, a rotating shaft connected to the output end of the stepper motor, the rotating shaft connected to the gear, a gear ring connected to the placement seat, the gear ring movably connected to the limiting groove, and the gear and the gear ring meshing with each other.

[0006] Preferably, the telescopic end of the hydraulic rod is connected to a guide rod, and the guide rod is connected to the connecting plate.

[0007] Preferably, the mounting plate is detachably connected to a fixing plate, the fixing plate is connected to a bracket, and the connecting rod is slidably connected to the bracket.

[0008] Preferably, the mounting plate, fixing plate, and protective shell are respectively provided with positioning holes and oblong holes, and bolts are threadedly connected to the positioning holes and oblong holes, and the bolts are threadedly connected to the placement seat and mounting plate.

[0009] Preferably, the clamp is connected to a rubber pad.

[0010] Preferably, the base is connected to a positioning plate, and the positioning plate has mounting holes.

[0011] Preferably, the placement base has a storage slot, and a cushioning pad is connected to the side wall of the storage slot. The cushioning pad is made of elastic rubber.

[0012] Preferably, the cushioning pad has anti-slip patterns, which are distributed in a cross-grid pattern.

[0013] The beneficial effects of this technical solution compared to existing technologies are as follows: This solution achieves automated horizontal rotation adjustment of the placement seat through a structure consisting of a base, placement seat, stepper motor, and gear and gear ring. The stepper motor drives the gear to rotate, and the gear meshes with the gear ring to rotate the placement seat, solving the inefficiency problem caused by frequent workpiece disassembly and assembly during multi-faceted machining. Simultaneously, precise control of the rotation angle by the motor significantly reduces repetitive positioning errors, ensuring the positional accuracy of each machined surface of the workpiece. An automated workpiece clamping mechanism using hydraulic drive is achieved through a hydraulic rod, connecting plate, and clamping plate. Compared to traditional manual clamping methods, the clamping force provided by the hydraulic rod is more uniform and stable. The clamping force can be flexibly adjusted by controlling the extension and retraction of the hydraulic rod, avoiding damage to fragile or easily deformable workpieces, while also reducing the risk of workpiece displacement during high-speed machining or in vibration environments, thus improving clamping reliability.

[0014] By incorporating guide rods, stable guidance is provided for the extension and retraction of the hydraulic rods. The guide rods effectively counteract the lateral forces generated during clamping, preventing clamping deviations caused by force offset between the connecting plate and the connecting rod, further ensuring the positioning accuracy of the clamping plate on the workpiece and enhancing the stability of the mechanism's operation.

[0015] By setting up a fixed plate and a bracket, the bracket provides limiting support for the connecting rod. When the hydraulic rod drives the clamping plate to clamp or release the workpiece, the connecting rod slides along the bracket, restricting its movement trajectory and preventing it from wobbling or deviating. This ensures that the clamping plate always acts precisely on the workpiece in the preset direction, improving the stability and accuracy of the clamping action.

[0016] By incorporating positioning holes, slotted holes, and bolts, detachable connections and fine-tuning of the components are achieved. The slotted holes allow for adjustment of component positions within a certain range, while the positioning holes ensure the positioning accuracy of component installation, adapting to the positioning requirements of workpieces of different specifications. Simultaneously, the detachable design facilitates individual maintenance and replacement of components, reducing the use and maintenance costs of the fixture.

[0017] By incorporating rubber pads, which possess elasticity and anti-slip properties, the rubber pads can buffer the impact of clamping force on the workpiece surface when clamping the workpiece, preventing indentations or scratches. Simultaneously, they increase the friction between the clamping plate and the workpiece, preventing slippage during processing or rotation, thus further enhancing positioning stability.

[0018] By incorporating a positioning plate and mounting holes, the positioning plate provides a precise reference for the overall installation of the fixture. The mounting holes securely fix the fixture to the worktable or production line, preventing displacement or shaking during operation and ensuring the relative positional accuracy of the fixture with other processing equipment, thus providing a stable foundation for workpiece processing.

[0019] By incorporating a storage slot and a buffer pad, the storage slot provides initial positioning for the workpiece, while the elastic rubber buffer pad absorbs the impact force during placement, preventing damage from bumps and knocks. The cross-grid anti-slip pattern increases the friction between the workpiece and the placement base, and combined with the clamping action of the clamping plate, further prevents the workpiece from sliding during rotation or processing, improving the overall positioning effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a top sectional view of the present invention; Reference numerals: 1. Base; 2. Placement seat; 3. Stepper motor; 4. Protective shell; 5. Mounting plate; 6. Storage slot; 7. Buffer pad; 8. Bracket; 9. Fixing plate; 10. Mounting hole; 11. Positioning plate; 12. Guide rod; 13. Clamping plate; 14. Connecting rod; 15. Connecting plate; 16. Hydraulic rod; 17. Waist-shaped hole; 18. Positioning hole; 19. Gear; 20. Rotating shaft; 21. Gear ring; 22. Limiting groove. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-3The workpiece positioning fixture shown includes a base 1, with a placement seat 2 rotatably connected to the top of the base 1. Multiple mounting plates 5 are detachably connected in a uniform array on the top of the placement seat 2. Different specifications of mounting plates 5 and matching clamping components can be replaced according to the workpiece size, further expanding the fixture's applicability. Each mounting plate 5 is detachably connected to a protective shell 4 and a hydraulic rod 16. Each protective shell 4 cooperates with a corresponding hydraulic rod 16, protecting the hydraulic rod 16 from external impurities or processing debris that could interfere with its extension and retraction, thus enhancing the mechanism's safety. Each hydraulic rod 16 has a connecting plate 15 connected to its extension end, and a connecting rod 14 connected to the other end of each connecting plate 15. Each connecting rod 14 has a clamping plate 13 connected to the other end. When the hydraulic rod 16 extends or retracts, the connecting plate 15 and connecting rod 14 move the clamping plate 13 closer to or further away from the workpiece, achieving clamping and releasing actions. A limiting groove 22 is formed inside the base 1, and a gear 19 is rotatably connected to the limiting groove 22. A stepper motor 3 is connected to the top of the base 1, and a rotating shaft 20 is connected to the output end of the stepper motor 3. The rotating shaft 20 is connected to the gear 19. A gear ring 21 is connected to the bottom of the outer wall of the placement seat 2, and the gear ring 21 is movably connected to the limiting groove 22. The gear 19 and the gear ring 21 mesh with each other. When the stepper motor 3 is started, its output end drives the rotating shaft 20 to rotate. The rotating shaft 20 drives the gear 19 to rotate within the limiting groove 22. Through the meshing action of the gear 19 with the gear ring 21, the placement seat 2 is driven to rotate horizontally around the top of the base 1. Through the precise control of the stepper motor 3, the rotation angle of the placement seat 2 can be precisely adjusted to meet the angle switching requirements during multi-faceted processing of workpieces.

[0022] like Figure 1 As shown, each hydraulic rod 16 has two guide rods 12 connected to its telescopic end, and the other end of each guide rod 12 is connected to the corresponding connecting plate 15. The guide rods 12 are arranged parallel to the hydraulic rods 16. During the telescopic process of the hydraulic rods 16, the guide rods 12 slide along a fixed direction, effectively counteracting the lateral force generated during clamping, avoiding clamping deviation caused by force offset between the connecting plate 15 and the connecting rod 14, and ensuring that the clamping plate 13 always acts accurately on the workpiece in the preset direction. Each mounting plate 5 is detachably connected to a fixing plate 9, and each fixing plate 9 is connected to a bracket 8. Each connecting rod 14 is slidably connected to the corresponding bracket 8. The bracket 8 provides limiting support for the connecting rod 14, limiting the movement trajectory of the connecting rod 14, preventing it from shaking or shifting during clamping or loosening, and further ensuring the stability and accuracy of the clamping mechanism.

[0023] like Figure 2As shown, each mounting plate 5, fixing plate 9, and protective shell 4 has multiple positioning holes 18 and oblong holes 17. Each positioning hole 18 and oblong hole 17 is threaded with a bolt, and each bolt is threaded to the corresponding placement seat 2 or mounting plate 5. The oblong holes 17 provide space for fine-tuning the position of the components. This connection method not only facilitates the installation and disassembly of components, but also allows for flexible adjustment of the positions of the mounting plate 5, fixing plate 9, and protective shell 4 according to the workpiece specifications, greatly improving the adaptability of the fixture. Each clamping plate 13 is connected to a rubber pad, which has good elasticity and anti-slip properties. When clamping the workpiece, the rubber pad can buffer the impact of the clamping force on the workpiece surface, avoiding indentations or scratches on the workpiece surface; at the same time, the rubber pad can increase the friction between the clamping plate 13 and the workpiece, preventing the workpiece from sliding during processing or rotation, and improving the stability of clamping. A positioning plate 11 is connected to the bottom of the outer wall of the base 1, and the positioning plate 11 has multiple mounting holes 10. The fixture can be securely fixed to the workbench or production line through the mounting hole 10, ensuring that the fixture does not shift or shake during operation, providing a basic guarantee for the precise coordination of the fixture with other processing equipment. A storage groove 6 is provided in the center of the top of the placement base 2, and a buffer pad 7 is connected to the side wall of the storage groove 6. The buffer pad 7 is made of elastic rubber, which can absorb the impact force when the workpiece is placed, preventing collision damage between the workpiece and the placement base 2. The buffer pad 7 has anti-slip textures distributed in a cross-grid pattern, further increasing the friction between the workpiece and the buffer pad 7. Combined with the clamping action of the clamping plate 13, it effectively prevents the workpiece from shifting during rotation or processing, improving the overall positioning effect.

[0024] The specific implementation process is as follows: The fixture is fixed in the preset position through the mounting holes 10 of the positioning plate 11. The appropriate mounting plate 5 and clamping components are selected according to the workpiece size. The mounting plate 5, protective shell 4, hydraulic rod 16 and other components are assembled into place using the positioning holes 18, waist-shaped holes 17 and bolts.

[0025] In use, the hydraulic rod 16 retracts to open the clamping plate 13, allowing the workpiece to be placed into the storage slot 6 of the placement seat 2. The impact is absorbed by the buffer pad 7, and the anti-slip texture provides initial positioning. Activating the hydraulic rod 16, via the connecting plate 15 and connecting rod 14, moves the clamping plate 13 closer to the workpiece. The guide rod 12 and bracket 8 ensure precise and stable clamping. The rubber pad provides cushioning, scratch prevention, and increased friction. Once the preset clamping force is reached, the hydraulic rod 16 stops. For multi-faceted processing, the stepper motor 3 is activated, driving the placement seat 2 to rotate via the rotating shaft 20, gear 19, and gear ring 21. The motor precisely controls the rotation angle to switch processing surfaces. During rotation, the workpiece remains stable due to the clamping and anti-slip structure. After processing, the hydraulic rod 16 retracts to release the clamping plate 13, allowing the workpiece to be removed.

[0026] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A workpiece positioning fixture, characterized in that: The device includes a base (1), which is rotatably connected to a placement seat (2). The placement seat (2) is detachably connected to an mounting plate (5). The mounting plate (5) is detachably connected to a protective shell (4) and a hydraulic rod (16). The protective shell (4) and the hydraulic rod (16) cooperate with each other. The extension end of the hydraulic rod (16) is connected to a connecting plate (15). The connecting plate (15) is connected to a connecting rod (14). The connecting rod (14) is connected to a clamping plate (13). The base (1) has a limiting groove (22). The limiting groove (22) is rotatably connected to a gear (19). The base (1) is connected to a stepper motor (3). The output end of the stepper motor (3) is connected to a rotating shaft (20). The rotating shaft (20) is connected to the gear (19). The placement seat (2) is connected to a gear ring (21). The gear ring (21) is movably connected to the limiting groove (22). The gear (19) and the gear ring (21) mesh with each other.

2. The workpiece positioning fixture as described in claim 1, characterized in that: The hydraulic rod (16) has a guide rod (12) connected to its telescopic end, and the guide rod (12) is connected to the connecting plate (15).

3. The workpiece positioning fixture as described in claim 1, characterized in that: The mounting plate (5) is detachably connected to a fixing plate (9), the fixing plate (9) is connected to a bracket (8), and the connecting rod (14) is slidably connected to the bracket (8).

4. The workpiece positioning fixture as described in claim 3, characterized in that: The mounting plate (5), fixing plate (9) and protective shell (4) are respectively provided with positioning holes (18) and waist-shaped holes (17). The positioning holes (18) and waist-shaped holes (17) are respectively threaded with bolts, and the bolts are threaded to the placement seat (2) and mounting plate (5).

5. The workpiece positioning fixture as described in claim 1, characterized in that: The clamp (13) is connected to a rubber pad.

6. The workpiece positioning fixture as described in claim 1, characterized in that: The base (1) is connected to a positioning plate (11), and the positioning plate (11) has mounting holes (10).

7. The workpiece positioning fixture as described in claim 1, characterized in that: The placement seat (2) has a storage slot (6), and the side wall of the storage slot (6) is connected to a cushioning pad (7), which is made of elastic rubber.

8. The workpiece positioning fixture as described in claim 7, characterized in that: The buffer pad (7) has anti-slip textures, which are distributed in a cross-grid pattern.

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