Workpiece positioning device for workpiece machining

By designing a workpiece positioning device with a base, adjustment structure, and positioning components, the problem of poor applicability of existing devices is solved, enabling rapid installation and flexible adaptation to the processing needs of different workpiece specifications, thereby improving processing efficiency.

CN224274184UActive Publication Date: 2026-05-26CHONGQING DILIN MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING DILIN MASCH MFG CO LTD
Filing Date
2025-06-18
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing workpiece positioning devices cannot be flexibly adjusted to accommodate different workpiece specifications, resulting in poor applicability and inconvenient installation.

Method used

A workpiece positioning device including a base, an adjustment structure, and a positioning component was designed. It enables quick installation and disassembly through the cooperation of a screw and a fixing block, and uses a clamping plate linked by a motor and a lead screw to fix the workpiece, adapting to workpieces of different specifications.

Benefits of technology

The installation convenience and applicability of the workpiece positioning device have been improved, enabling it to flexibly adapt to the processing requirements of different workpiece specifications and improve processing efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224274184U_ABST
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Abstract

The utility model discloses a workpiece positioning device for workpiece machining, which belongs to the technical field of workpiece machining equipment and comprises a base, the base comprises a bottom plate, mounting holes are arranged on the outer surface of the bottom plate, screws are mounted on two sides of the bottom plate, and adjusting structures are connected in the mounting holes. The adjusting structure comprises a pull rod, the pull rod is sleeved with a limiting plate, and a positioning assembly is installed at the top of the bottom plate. The positioning assembly comprises a motor, and one side of the motor is connected with a lead screw and a clamping plate. The independent base and the positioning assembly are arranged, so that the device is convenient to mount and dismount corresponding structural assemblies, the positions of two sets of bottom plates in the base structure are adjusted according to different specifications of workpieces through an adjusting structure, a motor and a lead screw are linked to enable a clamping plate to fix the workpieces, and the interiors of rectangles on the two sides of the clamping plate are arc-shaped; and the clamp is suitable for clamping different workpieces, so that the applicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece processing equipment technology, specifically a workpiece positioning device for workpiece processing. Background Technology

[0002] A workpiece refers to an object that is processed during machining. It can be a single part or an assembly of multiple parts. It is a product component in the manufacturing process and is usually in a state of processing or handling. In manufacturing, the processing of workpieces includes cutting and polishing. During processing, workpieces are prone to displacement, which is detrimental to accurate positioning. Therefore, a positioning device is needed to assist in the process and improve efficiency.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220218094U) discloses a workpiece positioning device. Its general description includes a worktable, a mounting box at the lower end of the worktable, a drive motor installed inside the mounting box, and an output shaft of the drive motor extending to the outside and fixedly connected to a first gear. Multiple rotating rods are rotatably connected to the upper end of the worktable, each rotating rod having a limit block fixedly connected to its upper end, and each rotating rod having a lower end penetrating the worktable and fixedly connected to a second gear. This utility model uses the rotation of multiple limit blocks to abut against the outer wall of a cylindrical workpiece, thus limiting the workpiece's position. Simultaneously, the arrangement of multiple pneumatic rods and pressure blocks firmly presses the workpiece onto the worktable.

[0004] The above technical solution uses the rotation of multiple limiting blocks to abut against the outer wall of the cylindrical workpiece, thereby limiting the cylindrical workpiece. At the same time, the setting of multiple pneumatic rods and pressure blocks tightly presses the workpiece onto the worktable to achieve the limiting operation. However, the involvement of multiple limiting blocks and pneumatic rod assemblies makes the positioning device difficult to install and use quickly. Furthermore, the different specifications of different workpieces during the positioning process make it impossible to flexibly adjust the positioning device for different applications, thus affecting the applicability of the device.

[0005] Therefore, this utility model provides a workpiece positioning device for workpiece processing to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a workpiece positioning device for workpiece processing, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a workpiece positioning device for workpiece processing, comprising a base, the base comprising a bottom plate, the outer surface of the bottom plate having mounting holes, screws mounted on both sides of the bottom plate, and an adjustment structure connected inside the mounting holes; the adjustment structure comprising a pull rod, a limiting plate sleeved on the outside of the pull rod, and a positioning component mounted on the top of the bottom plate; the positioning component comprising a motor, a lead screw and a clamping plate connected to one side of the motor.

[0010] As a preferred technical solution of this application, a circular mounting hole is fixedly opened at the center of one side of the base plate, the mounting hole penetrates through the opposite side of the base plate, and circular holes are symmetrically provided on both sides of the outer side of the base plate, and the interior of each circular hole is movably connected to the outer surface of the screw.

[0011] As a preferred technical solution of this application, a fixing block is fixedly installed on the top of each screw, and the inner wall of the mounting hole is movably connected to the pull rod in the adjustment structure.

[0012] As a preferred technical solution of this application, both ends of the pull rod are movably connected to the limiting plate, and an end cap is fixedly installed on the top of the pull rod.

[0013] As a preferred technical solution of this application, the positioning component includes a motor, one end of which is electrically connected to one side of a lead screw, and the other side of the lead screw is fixedly connected to the outer surface of a clamping plate. Connecting blocks are fixedly provided on both sides of the outer side of the clamping plate, the bottom of the connecting blocks is fixedly connected to the top of the base plate, and the connecting blocks are movably engaged with the clamping plate.

[0014] As a preferred technical solution of this application, the top center of the clamping plate is arc-shaped, and the two sides of the clamping plate are rectangular.

[0015] (III) Beneficial Effects

[0016] The device is equipped with an independent base and positioning components, and is installed with the processing device via screws and fixing blocks. This makes it easy to install and disassemble the corresponding structural components, thereby enabling rapid installation and improving the convenience and efficiency of the installation process.

[0017] By adjusting the structure, the positions of the two sets of base plates in the base structure can be adjusted according to the different specifications of the workpiece. With the installation of the two sets of moving plates in the corresponding limit holes, the base can be used for the installation of processing devices. The motor and the lead screw are linked to fix the workpiece with the clamping plate. The rectangular sides of the clamping plate have an arc shape inside, which is suitable for clamping different workpieces, thereby improving the applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning component structure of this utility model.

[0022] In the picture:

[0023] 1. Base; 101. Base plate; 102. Mounting hole; 103. Fixing block; 104. Screw; 2. Adjustment structure; 201. Pull rod; 202. Limiting plate; 203. End cap; 3. Positioning assembly; 301. Motor; 302. Lead screw; 303. Connecting block; 304. Clamping plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a workpiece positioning device for workpiece processing, such as... Figure 1-4 As shown, the base 1 includes a base plate 101, with mounting holes 102 on the outer surface of the base plate 101. Screws 104 are mounted on both sides of the base plate 101, and an adjustment structure 2 is connected inside the mounting holes 102. The adjustment structure 2 includes a pull rod 201, with a limiting plate 202 sleeved on the outside of the pull rod 201. A positioning component 3 is mounted on the top of the base plate 101. The positioning component 3 includes a motor 301, with a lead screw 302 and a clamping plate 304 connected to one side of the motor 301.

[0026] The device is equipped with an independent base 1 and positioning component 3, which are installed with the processing device via screw 104 and fixing block 103. This makes it easy to install and disassemble the corresponding structural components, thereby enabling rapid installation and improving the convenience and efficiency of device installation.

[0027] A circular mounting hole 102 is fixedly opened at the center of one side of the base plate 101. The mounting hole 102 penetrates through the opposite side of the base plate 101. Circular holes are symmetrically provided on both sides of the outer surface of the base plate 101. The inside of each circular hole is movably connected to the outer surface of the screw 104. The pull rod 201 of the adjustment structure 2 passes through the base plate 101 through the circular mounting hole 102 and slides through it. When the screw 104 in the circular holes on both sides rotates, it drives the fixing block 103 to rise and fall and be fixed on the processing device, so that the device can be used in different working scenarios.

[0028] Each screw 104 has a fixing block 103 fixedly installed on its top. The inner wall of the mounting hole 102 is movably connected to the pull rod 201 in the adjustment structure 2. The screw 104 is fixed by the fixing block 103.

[0029] Both ends of the pull rod 201 are movably connected to the limiting plate 202. The top of the pull rod 201 is fixedly installed with an end cap 203. By sliding the limiting plates 202 on both sides along the pull rod 201, the adjustment range can be set. The end cap 203 prevents the limiting plate 202 from detaching from the pull rod 201, further enhancing the fixed stability of the base 1.

[0030] The positioning component 3 includes a motor 301. One end of the motor 301 is electrically connected to one side of the lead screw 302, and the other side of the lead screw 302 is fixedly connected to the outer surface of the clamping plate 304. Connecting blocks 303 are fixedly provided on both sides of the outer side of the clamping plate 304. The bottom of the connecting blocks 303 is fixedly connected to the top of the base plate 101. The connecting blocks 303 and the clamping plate 304 are movably engaged. When the motor 301 rotates in conjunction with the lead screw 302, the thread of the lead screw 302 pushes the clamping plate 304 to move linearly in the guide groove of the connecting blocks 303. The clamping plate 304 moves forward to clamp the workpiece or moves backward to release the workpiece. The bottom of the connecting blocks 303 is fixed to the base plate 101, so that the load-bearing capacity is stable.

[0031] The top center of the clamping plate 304 is arc-shaped, and the two sides of the clamping plate 304 are rectangular. The arc-shaped surface of the top of the clamping plate 304 fits against the outer wall of the cylindrical workpiece, and the arc-shaped clamping of the cylindrical workpiece can be used to position the cuboid workpiece. It is suitable for clamping different workpieces, thereby improving its applicability.

[0032] Working principle: During use, the device is fixed to the machine tool or workbench via the circular mounting hole 102 in the center of the base plate 101. Bolts are then passed through the through holes and tightened. Rotating the screws 104 on both sides raises and lowers the top fixing block 103, initially adjusting the horizontal position and height of the base 1 to ensure the device is on a reference plane, adapting to different processing scenarios. Sliding the limiting plate 202 along the pull rod 201 to the target position adjusts the movement of the pull rod 201 within the mounting hole 102, fixing the entire device on different processing devices. Rotating the screws 104 causes the fixing block 103 to press down on the limiting plate 202, strengthening the fixing effect and pressing the pull rod 201 tightly against the inner wall of the mounting hole 102, achieving rigidity. Lock the cylindrical workpiece onto the base plate 101. Adjust the distance of the clamping plate 304, start the motor 301 to provide power, causing the lead screw 302 to rotate and push the clamping plate 304 forward in a straight line along the connecting block 303. The arc-shaped surface of the clamping plate 304 fits against the outer wall of the workpiece, and the rectangular structures on both sides are suitable for rectangular work, providing lateral support and completing the workpiece fixation. After processing, the motor 301 reverses, the lead screw 302 retracts, and the clamping plate 304 moves backward to reset, removing the workpiece and completing the fixation work.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A workpiece positioning device for workpiece machining, characterized in that: The device includes a base (1), which includes a base plate (101). The base plate (101) has mounting holes (102) on its outer surface. Screws (104) are installed on both sides of the base plate (101). An adjustment structure (2) is connected inside the mounting holes (102). The adjustment structure (2) includes a pull rod (201). A limiting plate (202) is sleeved on the outside of the pull rod (201). A positioning component (3) is installed on the top of the base plate (101). The positioning component (3) includes a motor (301). A lead screw (302) and a clamping plate (304) are connected to one side of the motor (301).

2. The workpiece positioning device for workpiece processing according to claim 1, characterized in that: A circular mounting hole (102) is fixedly opened at the center of one side of the base plate (101). The mounting hole (102) penetrates through the opposite side of the base plate (101). Circular holes are symmetrically provided on both sides of the outer surface of the base plate (101). The interior of each circular hole is movably connected to the outer surface of the screw (104).

3. The workpiece positioning device for workpiece processing according to claim 1, characterized in that: Each screw (104) has a fixed block (103) fixedly installed on its top, and the inner wall of the mounting hole (102) is movably connected to the pull rod (201) in the adjustment structure (2).

4. A workpiece positioning device for workpiece processing according to claim 1, characterized in that: Both ends of the pull rod (201) are movably connected to the limiting plate (202), and the top of the pull rod (201) is fixedly installed with an end cap (203).

5. A workpiece positioning device for workpiece processing according to claim 1, characterized in that: The positioning component (3) includes a motor (301), one end of which is electrically connected to one side of a lead screw (302), and the other side of the lead screw (302) is fixedly connected to the outer surface of a clamping plate (304). Connecting blocks (303) are fixedly provided on both sides of the outside of the clamping plate (304). The bottom of the connecting blocks (303) is fixedly connected to the top of the base plate (101), and the connecting blocks (303) are movably engaged with the clamping plate (304).

6. A workpiece positioning device for workpiece processing according to claim 1, characterized in that: The top center of the clamping plate (304) is arc-shaped, and the two sides of the clamping plate (304) are rectangular.