Workpiece centering and correcting device
By designing a workpiece centering and straightening device, the center of the workpiece is automatically positioned using a fixed frame, electric push rod, and V-block. Combined with components such as a clamping frame, spring, and suction cup, a stable clamping is achieved, which solves the problems of cumbersome workpiece centering operation and friction scratches, and improves the machining accuracy and stability.
Patent Information
- Application Number
- CN202422872173.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing workpiece centering operation is cumbersome, requires manual positioning, and is prone to causing scratches due to friction between the workpiece and the machine tool. It is also difficult to adapt to the stable fixing and offset of workpieces of different sizes.
Design a workpiece centering and straightening device, including a fixed frame, an electric push rod, and a V-block. The electric push rod drives the V-block to clamp the workpiece and automatically position it to the center. Combined with components such as the clamping frame, spring, and suction cup, it achieves stable clamping and support. Ball bearings are used to reduce friction, and the metal V-block improves the structural strength.
It simplifies the workpiece alignment process, improves machining accuracy, reduces frictional scratches between the workpiece and the machine tool, enhances adaptability and stability to workpieces of different sizes, and reduces abnormal wear caused by static friction.
Smart Images
Figure CN223506697U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, specifically to a workpiece centering and straightening device. Background Technology
[0002] Machining refers to the process of processing raw materials into parts or products of a certain shape, size and performance through mechanical means. The purpose is to meet design requirements and ensure the accuracy and surface quality of the parts.
[0003] Common machining methods include cutting, grinding, drilling, milling, turning, and electrical discharge machining. Turning is mainly used to machine the outer circle, end face, and groove of workpieces such as shafts, discs, and rings. Milling is used to machine various planes, inclined planes, steps, and gears. Drilling is used to machine holes and can be performed on drilling machines or other machine tools. When drilling disc workpieces, it is necessary to center the workpiece.
[0004] In existing workpiece alignment technology, when aligning disc-shaped workpieces, tools such as compasses are needed to find the center of the workpiece, and then the center of the workpiece is aligned with the drill bit for processing, which is a rather cumbersome operation.
[0005] Therefore, this utility model provides a workpiece centering and straightening device. Utility Model Content
[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a workpiece centering and straightening device.
[0007] To achieve the above objectives, the technical solution of this utility model is to design a workpiece centering and straightening device, including a workpiece body and a pair of fixed frames; electric push rods are fixedly connected to the side walls of the fixed frames; multiple sets of electric push rods are arranged on the side walls of the fixed frames; a V-block is detachably installed on the transmission end of a set of electric push rods; the V-block slides in the middle of the fixed frame; the side walls of the pair of V-blocks close to each other clamp the workpiece body; a clamping assembly is provided at the bottom of the workpiece body; a fixing assembly is provided at the bottom of the workpiece body; this step, through the arrangement of the fixed frames, electric push rods and V-blocks, forms a centering and straightening structure, realizing the automatic movement of the workpiece to the center when the workpiece is clamped, solving the problem of manual positioning during workpiece processing, improving the accuracy of workpiece processing, and simplifying the workpiece centering operation steps.
[0008] A further preferred technical solution includes a clamping assembly comprising a base, a clamping frame, and a first spring; the base is connected to the bottom of the workpiece body via a fixing assembly; the clamping frame is slidably connected to the side wall of the base; a pair of clamping frames are arranged symmetrically on the side wall of the base; the first spring is fixedly connected to the ends of the pair of clamping frames that are close to each other; a pair of first springs are arranged symmetrically inside the base; a pressure assembly is provided on the top of the clamping frame; this step, through the arrangement of the base, clamping frame, and first spring, forms a workpiece clamping structure, realizing the function of clamping, fixing, and supporting the workpiece, solving the problem of scratches caused by friction between the workpiece and the machine tool, improving the integrity of the bottom of the workpiece during processing, and reducing the occurrence of scratches on the bottom when the workpiece is aligned.
[0009] A further preferred technical solution includes a pressure assembly comprising a second spring, a guide rod, and a pressure plate; the second spring is fixedly connected to the inside of the clamping frame away from the base; a pair of second springs are arranged symmetrically inside the clamping frame; the bottom end of the guide rod is fixedly connected to the end of the second spring away from the clamping frame; the bottom of the pressure plate is fixedly connected to the top end of the guide rod; this step, through the arrangement of the second spring, guide rod, and pressure plate, forms a pressure structure, realizing the function of fixing the workpiece, solving the problem of workpieces of different sizes not being firmly fixed on the top of the base, improving the adaptability of the device to workpieces of different sizes, and improving the stability of the workpiece when fixed on the top of the base.
[0010] A further preferred technical solution includes a fixing component comprising a top rod, a suction cup, and a third spring; the top rod is slidably connected to the top of the base; multiple sets of top rods are arranged symmetrically on the top of the base; the suction cup is fixedly connected to the top of the top rod; one end of the third spring is fixedly connected to the bottom of the top rod; the other end of the third spring is fixedly connected to the inside of the base; this step, through the arrangement of the top rod, suction cup, and third spring, forms an adsorption fixing structure, realizing the function of adsorbing and fixing the workpiece, solving the problem of workpiece displacement on the top of the base, and improving the stability of the workpiece on the top of the base.
[0011] A further preferred technical solution is that the bottom of the base is connected with rolling balls; multiple sets of rolling balls are arranged on the bottom of the base and are evenly distributed on the bottom of the base; this step, by setting the rolling balls, converts the static friction when the base moves into rolling friction, improves the smoothness when the base and the workpiece move, and reduces the abnormal wear on the base and machine tool surface caused by static friction.
[0012] A further preferred technical solution is that a gasket is fixedly connected to the bottom of the pressure plate; this step, by setting the gasket, allows the gasket to contact the workpiece body, increases the contact area between the pressure plate and the workpiece body, improves the stability of the pressure plate when pressing the workpiece body, and reduces the possibility of the workpiece body shifting.
[0013] A further preferred technical solution is that the V-block is made of metal; making the V-block of metal increases the structural strength of the V-block, improves the service life of the V-block, and reduces the plastic deformation of the V-block.
[0014] The advantages and beneficial effects of this utility model are as follows: 1. The workpiece centering and straightening device of this utility model, through the setting of a fixed frame, an electric push rod and a V-block, forms a centering and straightening structure, which realizes that the workpiece is automatically moved to the center when it is clamped, solves the problem of manual positioning during workpiece processing, improves the accuracy of workpiece processing, and simplifies the operation steps of workpiece centering.
[0015] 2. The workpiece centering and straightening device of this utility model, through the arrangement of a base, a clamping frame and a first spring, forms a workpiece clamping structure, which realizes the function of clamping, fixing and supporting the workpiece, solves the problem of scratches caused by friction between the workpiece and the machine tool, improves the integrity of the bottom of the workpiece during processing, and reduces the occurrence of scratches on the bottom of the workpiece during centering. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of the workpiece body and the base in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the clamping frame and the pressure plate in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure in which the V-shaped block and the workpiece body cooperate in this utility model.
[0021] In the diagram: 1. Workpiece body; 11. Fixing frame; 12. Electric actuator; 13. V-block; 2. Base; 21. Clamping frame; 22. First spring; 3. Second spring; 31. Guide rod; 32. Pressure plate; 4. Push rod; 41. Suction cup; 42. Third spring; 5. Ball bearing; 6. Gasket. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0023] like Figures 1 to 4As shown, a workpiece centering and straightening device according to an embodiment of the present invention includes a workpiece body 1 and a pair of fixed frames 11; electric push rods 12 are fixedly connected to the side walls of the fixed frames 11; multiple sets of electric push rods 12 are arranged on the side walls of the fixed frames 11; a V-block 13 is detachably installed on the transmission end of a set of electric push rods 12; the V-block 13 slides in the middle of the fixed frame 11; the side walls of the pair of V-blocks 13 close to each other clamp the workpiece body 1; a clamping assembly is provided at the bottom of the workpiece body 1; a fixing assembly is provided at the bottom of the workpiece body 1; during operation, the workpiece body is... 1. Placed between a pair of V-blocks 13, the electric push rod 12 is turned on. The electric push rod 12 drives the V-blocks 13 to move closer to each other. The V-blocks 13 contact the side wall of the workpiece body 1 and automatically position the workpiece to the center. The clamping assembly and the fixing assembly fix the workpiece. This step, through the setting of the fixing frame 11, the electric push rod 12 and the V-blocks 13, forms a centering and correction structure, which realizes that the workpiece is automatically moved to the center when clamped, solves the problem of manual positioning during workpiece processing, improves the accuracy of workpiece processing, and simplifies the workpiece centering operation steps.
[0024] like Figure 1 and Figure 2 As shown, the clamping assembly includes a base 2, a clamping frame 21, and a first spring 22. The base 2 is connected to the bottom of the workpiece body 1 via a fixing assembly. The clamping frame 21 is slidably connected to the side wall of the base 2. A pair of clamping frames 21 are arranged symmetrically on the side wall of the base 2. The first spring 22 is fixedly connected to the ends of the pair of clamping frames 21 that are close to each other. A pair of first springs 22 are arranged symmetrically inside the base 2. A pressure assembly is provided on the top of the clamping frame 21. During operation, the pair of clamping frames 21 are pulled to both sides, and the workpiece is placed on the top of the base 2 so that the workpiece does not directly contact the machine tool. The first spring 22 drives the clamping frames 21 to move closer to each other to clamp and fix the workpiece. The pressure assembly presses the workpiece on the top of the base 2. When the workpiece is aligned, it drives the base 2 to move. This step, through the arrangement of the base 2, the clamping frame 21, and the first spring 22, forms a workpiece clamping structure, realizing the function of clamping, fixing, and supporting the workpiece. It solves the problem of scratches caused by friction between the workpiece and the machine tool, improves the integrity of the bottom of the workpiece during processing, and reduces the occurrence of scratches on the bottom when the workpiece is aligned.
[0025] like Figure 2 and Figure 3As shown, the pressing assembly includes a second spring 3, a guide rod 31, and a pressure plate 32. The second spring 3 is fixedly connected to the inside of the clamping frame 21 away from the base 2. A pair of second springs 3 are arranged symmetrically inside the clamping frame 21. The bottom end of the guide rod 31 is fixedly connected to the end of the second spring 3 away from the clamping frame 21. The bottom of the pressure plate 32 is fixedly connected to the top end of the guide rod 31. During operation, when the workpiece is clamped and fixed on the top of the base 2, the pressure plate 32 is lifted. The pressure plate 32 drives the guide rod 31 to move upward and stretches the second spring 3. After the base 2 is placed on top of the workpiece body 1, the pressure plate 32 is released. The second spring 3 drives the guide rod 31 and the pressure plate 32 downward to press the workpiece on the top of the base 2. This step, through the arrangement of the second spring 3, the guide rod 31, and the pressure plate 32, forms a pressing structure, realizing the function of fixing the workpiece. It solves the problem that workpieces of different sizes are not firmly fixed on the top of the base 2, improves the adaptability of the device to workpieces of different sizes, and improves the stability of the workpiece when it is fixed on the top of the base 2.
[0026] like Figure 2 As shown, the fixing assembly includes a top rod 4, a suction cup 41, and a third spring 42. The top rod 4 is slidably connected to the top of the base 2. Multiple sets of top rods 4 are arranged symmetrically on the top of the base 2. The suction cup 41 is fixedly connected to the top of the top rod 4. One end of the third spring 42 is fixedly connected to the bottom of the top rod 4. The other end of the third spring 42 is fixedly connected to the inside of the base 2. During operation, when the workpiece is placed on the top of the base 2, the suction cup 41 contacts and adheres to the bottom of the workpiece. The suction cup 41 drives the second spring 3 to move downward and compress the third spring 42. After the workpiece is processed and removed, the third spring 42 drives the top rod 4 and the suction cup 41 to reset. This step, through the arrangement of the top rod 4, the suction cup 41, and the third spring 42, forms an adsorption fixing structure, realizing the function of adsorbing and fixing the workpiece, solving the problem of workpiece displacement on the top of the base 2, and improving the stability of the workpiece on the top of the base 2.
[0027] like Figure 3 As shown, the bottom of the base 2 is connected to a rolling ball 5; multiple sets of balls 5 are set at the bottom of the base 2 and are evenly distributed at the bottom of the base 2; during operation, after the workpiece body 1 is clamped on the top of the base 2, when the V-block 13 performs the centering operation on the workpiece body 1, the V-block 13 squeezes the side wall of the workpiece body 1 and drives the base 2 to move on the machine tool, and the balls 5 convert static friction into rolling friction; this step, through the setting of the balls 5, converts the static friction of the base 2 when moving into rolling friction, improves the smoothness of the movement of the base 2 and the workpiece body 1, and reduces the abnormal wear of the base 2 and the machine tool surface caused by static friction.
[0028] like Figure 3As shown, a gasket 6 is fixedly connected to the bottom of the pressure plate 32. During operation, when the pressure plate 32 presses down on the workpiece body 1, the gasket 6 contacts the workpiece body 1, increasing the contact area between the pressure plate 32 and the workpiece body 1. This step, through the setting of the gasket 6, increases the contact area between the pressure plate 32 and the workpiece body 1, improves the stability of the pressure plate 32 when pressing down on the workpiece body 1, and reduces the possibility of the workpiece body 1 shifting.
[0029] like Figure 1 As shown, the V-block 13 is made of metal. During operation, the V-block 13 is made of metal, which increases the structural strength of the V-block 13, improves the service life of the V-block 13, and reduces the plastic deformation of the V-block 13.
[0030] During operation, the workpiece body 1 is placed between a pair of V-blocks 13. The electric actuator 12 is activated, causing the V-blocks 13 to move closer together. The V-blocks 13 contact the sidewalls of the workpiece body 1, automatically centering the workpiece. The clamping and fixing components then secure the workpiece. The pair of clamping frames 21 are pulled to the sides, placing the workpiece on top of the base 2, ensuring no direct contact between the workpiece and the machine tool. The first spring 22 causes the clamping frames 21 to move closer together, clamping and fixing the workpiece. The pressure assembly presses the workpiece onto the top of the base 2. When the workpiece is centered, the base 2 moves. When the workpiece is clamped and fixed on top of the base 2, the pressure plate 32 is lifted. The pressure plate 32 causes the guide rod 31 to move upwards and stretches the second spring 3. After the base 2 is placed on top of the workpiece body 1, the pressure plate 32 is released. The second spring 3 then moves the guide rod 31 and the pressure plate... 32. Press the workpiece downwards onto the top of the base 2. When the workpiece is placed on the top of the base 2, the suction cup 41 contacts and adheres to the bottom of the workpiece. The suction cup 41 drives the second spring 3 to move downwards and compress the third spring 42. After the workpiece is processed and removed, the third spring 42 drives the push rod 4 and the suction cup 41 to reset. After the workpiece body 1 is clamped on the top of the base 2, when the V-block 13 performs the centering operation on the workpiece body 1, the V-block 13 squeezes the side wall of the workpiece body 1, causing the base 2 to move on the machine tool. The ball 5 converts static friction into rolling friction. When the pressure plate 32 presses down on the workpiece body 1, the shim 6 contacts the workpiece body 1, increasing the contact area between the pressure plate 32 and the workpiece body 1. The V-block 13 is made of metal, which increases the structural strength of the V-block 13, improves the service life of the V-block 13, and reduces the plastic deformation of the V-block 13.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A workpiece centering and straightening device, comprising a workpiece body and a pair of fixing frames; characterized in that: The fixed frame is fixedly connected to an electric push rod on its side wall; multiple sets of electric push rods are provided on the side wall of the fixed frame; a V-block is detachably installed on the transmission end of a set of electric push rods; the V-block slides in the middle of the fixed frame; the side walls of a pair of V-blocks close to each other clamp the workpiece body; a clamping assembly is provided at the bottom of the workpiece body; a fixing assembly is provided at the bottom of the workpiece body.
2. The workpiece centering and straightening device according to claim 1, characterized in that: The clamping assembly includes a base, a clamping frame, and a first spring; the base is connected to the bottom of the workpiece body via a fixing assembly; the clamping frame is slidably connected to the side wall of the base; a pair of clamping frames are provided on the side wall of the base and are symmetrically arranged; the first spring is fixedly connected to the ends of the pair of clamping frames that are close to each other; a pair of first springs are provided inside the base and are symmetrically arranged; a pressure assembly is provided on the top of the clamping frame.
3. The workpiece centering and straightening device according to claim 2, characterized in that: The pressing assembly includes a second spring, a guide rod, and a pressure plate; the second spring is fixedly connected to the inside of the clamping frame away from the base; a pair of second springs are provided inside the clamping frame and are arranged symmetrically; the bottom end of the guide rod is fixedly connected to the end of the second spring away from the clamping frame; the bottom of the pressure plate is fixedly connected to the top end of the guide rod.
4. The workpiece centering and straightening device according to claim 2, characterized in that: The fixing assembly includes a top rod, a suction cup, and a third spring; the top rod is slidably connected to the top of the base; multiple sets of top rods are arranged symmetrically on the top of the base; the suction cup is fixedly connected to the top of the top rod; one end of the third spring is fixedly connected to the bottom end of the top rod; the other end of the third spring is fixedly connected to the inside of the base.
5. The workpiece centering and straightening device according to claim 2, characterized in that: The base is connected to a ball bearing in a rolling manner; multiple sets of the ball bearing are arranged on the bottom of the base and are evenly distributed on the bottom of the base.
6. The workpiece centering and straightening device according to claim 3, characterized in that: A gasket is fixedly connected to the bottom of the pressure plate.