Repair clamping device for circular metal workpiece

Abstract

The utility model relates to the technical field of clamping devices, in particular to a repairing clamping device for a circular metal workpiece, and solves the technical problems that in the prior art, when a clamping device on the market clamps a workpiece, the surface of the workpiece is often difficult to uniformly extrude, so that the workpiece is easy to move or slip in the machining process, and the working efficiency is high. And due to the fact that the diameters of different workpieces are possibly different, frequent clamp replacement or complex adjustment is often needed in practical application, the machining efficiency is reduced, the personnel intensity is increased, and the practicability of the device is reduced. The repairing and clamping device for the circular metal workpiece comprises a mounting plate, the mounting plate is in a U shape, and two supporting plates are symmetrically arranged on the inner side of the mounting plate. According to the utility model, stable and uniform extrusion and clamping on the workpiece are realized, the workpiece is effectively prevented from moving or slipping in the machining process, the manual operation cost is reduced, and the machining efficiency and the operation convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a repairing clamping device for a circular metal workpiece. Background Art

[0002] The machining and repair of round metal workpieces is a common and important task in the metalworking industry. These workpieces are widely used in a variety of fields, including automotive manufacturing, mechanical equipment, and aerospace. The machining accuracy and quality of these workpieces are directly related to the performance and service life of the final product. Repair clamping devices, as key equipment in the machining process, are primarily used to secure and clamp the workpiece, ensuring its stable position and posture during processing, thereby preventing machining errors caused by workpiece movement or slippage.

[0003] Existing clamping devices on the market often struggle to achieve uniform compression of the workpiece surface when clamping it, causing it to shift or slip during machining, increasing processing errors. Furthermore, due to the varying diameters of different workpieces, frequent fixture changes and complex adjustments are often required in practical applications. This not only reduces machining efficiency but also increases operator workload, reducing the device's practicality. Therefore, we propose a repair clamping device for circular metal workpieces to address these issues. Utility Model Content

[0004] The purpose of the utility model is to provide a repair clamping device for circular metal workpieces, which solves the problem that the clamping devices on the existing market in the prior art often find it difficult to achieve uniform extrusion of the workpiece surface when clamping the workpiece, causing the workpiece to easily move or slip during the processing. In addition, since the diameters of different workpieces may vary, in actual applications, it is often necessary to frequently replace the clamps or perform complex adjustments, which reduces processing efficiency, increases labor intensity, and reduces the practicality of the device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A repair and clamping device for a circular metal workpiece comprises a mounting plate, which is U-shaped, with two support plates symmetrically arranged on the inner side of the mounting plate, two clamping seats symmetrically arranged between the two support plates, a bottom plate provided at the bottom of each of the two clamping seats, an extrusion plate provided on the inner side of each of the two clamping seats, and an extrusion assembly connected to the adjacent extrusion plate provided on the top of each of the two clamping seats, a cylinder provided on the side of the two support plates away from each other, and a rotating assembly connected to the two clamping seats provided between the two support plates.

[0007] Preferably, the extrusion assembly includes an electric push rod arranged on the top of the clamping seat, and the bottom end of the electric push rod is fixedly connected to one side of the top of the clamping seat, the top of the electric push rod is fixedly connected to a connecting rod, and the connecting rod is an inverted L-shape, and the bottom of the end of the connecting rod away from the electric push rod is fixedly connected to the top of the extrusion plate.

[0008] Preferably, the rotating assembly includes a motor arranged on one side of one of the support plates, and one side of the motor is fixedly connected to the adjacent side wall of the adjacent support plate by bolts, and the outer wall of the clamping seat close to the support plate is fixedly connected to a rotating rod, one end of the rotating rod away from the clamping seat passes through the side wall of the adjacent support plate and is transmission-connected to the output end of the motor, and the other end of the rotating rod away from the clamping seat is rotatably connected to the adjacent side wall of the adjacent support plate.

[0009] Preferably, the ends of the two cylinders that are close to each other are fixedly connected to adjacent side walls of adjacent support plates, and the ends of the cylinders that are away from the support plates are fixedly connected to the inner side walls of the adjacent ends of the mounting plates.

[0010] Preferably, the two clamping seats are both arc-shaped, and a plurality of protective pads are fixedly connected to the inner arc surfaces of the two clamping seats, and the tops of the two base plates are provided with anti-slip grooves.

[0011] Preferably, support legs are fixedly connected to the four corners of the bottom of the mounting plate.

[0012] The utility model has at least the following beneficial effects:

[0013] The precise coordination of the electric push rod and connecting rod achieves stable and uniform squeeze clamping of the workpiece, effectively preventing movement or slippage during machining, thereby significantly reducing machining errors. Furthermore, the protective pad design on the inner curved surface of the clamping seat not only protects the workpiece from damage caused by excessive clamping force but also further enhances the stability of the clamping. These multiple protective measures work together to ensure high-precision and high-quality workpiece machining, significantly improving both precision and stability.

[0014] The utility model also has the following beneficial effects:

[0015] The rotating assembly enables automatic workpiece rotation during machining, eliminating the need for manual turning to complete multi-station machining, significantly reducing the burden on operators. Furthermore, the cylinder-driven clamping adjustment mechanism allows the device to easily adapt to circular workpieces of varying diameters, enhancing its versatility and flexibility. This improves machining efficiency, reduces labor costs, and enhances both efficiency and ease of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the clamping seat of the utility model;

[0019] Figure 3 This is a structural diagram of the support plate of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the rotating rod of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the bottom plate of the utility model.

[0022] In the figure: 1. Mounting plate; 2. Cylinder; 3. Support plate; 4. Motor; 5. Rotating rod; 6. Clamping seat; 7. Base plate; 8. Electric push rod; 9. Connecting rod; 10. Extrusion plate; 11. Protective pad. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] Reference Figure 1-5A repair clamping device for a circular metal workpiece includes a mounting plate 1, which is U-shaped. Two support plates 3 are symmetrically arranged on the inner side of the mounting plate 1. Two clamping seats 6 are symmetrically arranged between the two support plates 3. A bottom plate 7 is provided at the bottom of each clamping seat 6. An extrusion plate 10 is provided on the inner side of each clamping seat 6, and an extrusion assembly connected to the adjacent extrusion plate 10 is provided on the top of each clamping seat 6. A cylinder 2 is provided on the side of the two support plates 3 away from each other. A rotating assembly connected to the two clamping seats 6 is provided between the two support plates 3. Specifically, the electric push rod 8 is started to move downward. The vertical downward thrust of the extrusion plate 10 by the downward linear motion of the connecting rod 9 contacts the top of the workpiece, applies a stable and uniform extrusion force, firmly clamps the workpiece in the clamping seat 6, and ensures processing stability. The motor 4 is started to drive the rotating rod 5 to rotate. Since the workpiece is clamped by the two clamping seats 6 at the same time, the rotation of one rotating rod 5 is transmitted to the other rotating rod 5 and the other clamping seat 6 through the workpiece, realizing the automatic rotation of the workpiece. This design allows multi-station machining without manual workpiece flipping, improving processing efficiency. Activating cylinder 2 changes the internal gas pressure, pushing the piston rod to cause lateral displacement of the two support plates 3. This displacement is transmitted to the clamping base 6 via the rotating rod 5, moving them closer or further apart to accommodate circular workpieces of varying diameters. Precise control of cylinder 2 ensures secure workpiece clamping and the device's versatility.

[0025] Furthermore, the extrusion assembly includes an electric push rod 8 arranged on the top of the clamping seat 6, and the bottom end of the electric push rod 8 is fixedly connected to one side of the top of the clamping seat 6, and the top of the electric push rod 8 is fixedly connected to a connecting rod 9, and the connecting rod 9 is in an inverted L shape, and the bottom of the end of the connecting rod 9 away from the electric push rod 8 is fixedly connected to the top of the extrusion plate 10. Specifically, through the setting of the electric push rod 8, by starting the electric push rod 8 to drive the connecting rod 9 to move downward, the connecting rod 9 then drives the extrusion plate 10 to move downward to extrude the top of the workpiece in the clamping seat 6. Through the precise control of the electric push rod 8, the stable and uniform extrusion of the extrusion plate 10 on the top of the workpiece is ensured, which effectively avoids the processing error caused by the movement of the workpiece and prevents the workpiece from slipping upward during the clamping process, thereby improving the processing accuracy of the product.

[0026] Furthermore, the rotating assembly includes a motor 4 arranged on one side of one of the support plates 3, and one side of the motor 4 is fixedly connected to the adjacent side wall of the adjacent support plate 3 by a bolt, and the outer wall of the clamping seat 6 close to the support plate 3 is fixedly connected to a rotating rod 5, one end of which is away from the clamping seat 6 and passes through the side wall of the adjacent support plate 3 and is transmission-connected to the output end of the motor 4, and the other end of the rotating rod 5 is away from the clamping seat 6 and is rotationally connected to the adjacent side wall of the adjacent support plate 3. Specifically, through the setting of the rotating rod 5, by starting the motor 4 to drive one of the rotating rods 5 to rotate, the adjacent clamping seat 6 is then driven to rotate. At this time, the workpiece in the clamp is rotated to process other parts of the metal workpiece through the cooperation of the other clamping seat 6 and the other rotating rod 5, thereby eliminating the need for personnel to release the positioning of the workpiece, flip it over and re-position it, thereby reducing personnel operation and improving the adjustability and practicality of the device.

[0027] Furthermore, the ends of the two cylinders 2 that are close to each other are fixedly connected to the adjacent side walls of the adjacent support plates 3, and the ends of the cylinders 2 that are away from the support plates 3 are fixedly connected to the inner side walls of the adjacent ends of the mounting plate 1. Specifically, through the setting of the cylinder 2, the two support plates 3 are driven to produce lateral displacements towards or away from each other by starting the cylinder 2. When the support plates 3 drive the clamping seats 6 to move towards each other through the rotating rod 5, the two clamping seats 6 are brought close to each other to clamp and position the two sides of the outside of the workpiece, effectively clamping and fixing the outside of the workpiece, and adapting to circular workpieces of different diameters to a certain extent.

[0028] Furthermore, the two clamping seats 6 are both arc-shaped, and the inner arc surfaces of the two clamping seats 6 are fixedly connected with multiple protective pads 11, and the tops of the two base plates 7 are provided with anti-slip grooves. Specifically, through the setting of the protective pads 11, the protective pads 11 can protect the outside of the workpiece to avoid damage to the outside of the workpiece when the clamping force of the clamping seat 6 is too large. Through the setting of the anti-slip grooves, the workpiece is relatively stable when it is in the clamping seat 6 on the top of the base plate 7, preventing the workpiece from slipping easily.

[0029] Furthermore, support legs are fixedly connected to the four corners of the bottom of the mounting plate 1. Specifically, through the arrangement of the support legs, the multiple support legs can provide overall stability for the entire device, making the device more stable during operation.

[0030] In summary:

[0031] When the workpiece needs to be clamped, the electric push rod 8 is started to move downward, transmitting the linear motion to the connecting rod 9. Due to its inverted L-shaped design, the connecting rod 9 effectively converts the downward thrust of the electric push rod 8 into a vertical downward force on the extrusion plate 10. As the connecting rod 9 moves downward, the extrusion plate 10 also moves downward. The extrusion plate 10 gradually approaches and contacts the top of the workpiece. The precise control of the electric push rod 8 ensures that the extrusion plate 10 applies a stable and uniform extrusion force to the workpiece, effectively preventing the workpiece from moving or slipping during the clamping process. When the extrusion plate 10 reaches the predetermined position, the workpiece in the clamping seat 6 is firmly clamped, ensuring the stability of the workpiece during the processing and avoiding processing errors caused by the movement of the workpiece.

[0032] Start motor 4. The output shaft of motor 4 begins to rotate, transmitting the rotational motion to one of its directly connected rotating rods 5 via a coupling or other transmission mechanism. This rotational motion is then transmitted to the fixedly connected clamping base 6, causing the clamping base 6 and the workpiece contained therein to rotate. Because the workpiece is clamped simultaneously by two clamping bases 6, when one rotating rod 5 rotates one clamping base 6, the workpiece, through the transmission mechanism, drives the other clamping base 6 and the other rotating rod 5 to rotate. During this rotation, the workpiece maintains a rotational connection with the sidewall of the adjacent support plate 3, allowing it to rotate freely without obstruction. As the workpiece rotates, the machining equipment can process other parts of the workpiece. This design enables automatic rotation of the workpiece during machining, enabling multi-station machining without manual workpiece flipping, reducing the operator's burden and improving machining efficiency. Start cylinder 2. The gas pressure within cylinder 2 changes, pushing the piston rod outward or inward. Cylinder 2 is configured to push the two support plates 3 toward or away from each other. As the cylinder 2 pushes, the two support plates 3 begin to displace laterally. This displacement is transmitted to the clamping seats 6 via the rotating rod 5, causing the two clamping seats 6 to move closer to or further from each other accordingly. As the two clamping seats 6 approach each other, the space between them gradually decreases until they can tightly clamp the workpiece. Due to the precise control of the cylinder 2 and the design of the clamping seats 6, the device can adapt to circular workpieces of different diameters within a certain range and ensure the stability of the workpieces during processing. The cylinder 2 drive and workpiece clamping design enable the device to adapt to circular workpieces of different diameters, enhancing the device's versatility and flexibility.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A repair clamping device for a circular metal workpiece, comprising a mounting plate (1), characterized in that: The mounting plate (1) is U-shaped, and two supporting plates (3) are symmetrically arranged on the inner side of the mounting plate (1), and two clamping seats (6) are symmetrically arranged between the two supporting plates (3). The bottom of the two clamping seats (6) is provided with a bottom plate (7), and the inner side of the two clamping seats (6) is provided with an extrusion plate (10), and the top of the two clamping seats (6) is respectively provided with an extrusion assembly connected to the adjacent extrusion plate (10), and the two supporting plates (3) are provided with a cylinder (2) on the side away from each other, and a rotating assembly connected to the two clamping seats (6) is provided between the two supporting plates (3).

2. A repair clamping device for a circular metal workpiece according to claim 1, characterized in that: The extrusion assembly includes an electric push rod (8) arranged on the top of the clamping seat (6), and the bottom end of the electric push rod (8) is fixedly connected to one side of the top of the clamping seat (6), the top end of the electric push rod (8) is fixedly connected to a connecting rod (9), and the connecting rod (9) is in an inverted L shape, and the bottom end of the connecting rod (9) away from the electric push rod (8) is fixedly connected to the top of the extrusion plate (10).

3. The repair clamping device for a circular metal workpiece according to claim 1, characterized in that: The rotating assembly includes a motor (4) arranged on one side of one of the support plates (3), and one side of the motor (4) is fixedly connected to the adjacent side wall of the adjacent support plate (3) by means of bolts. The outer wall of the clamping seat (6) close to the support plate (3) is fixedly connected to a rotating rod (5), one end of the rotating rod (5) away from the clamping seat (6) passes through the side wall of the adjacent support plate (3) and is transmission-connected to the output end of the motor (4), and the other end of the rotating rod (5) away from the clamping seat (6) is rotationally connected to the adjacent side wall of the adjacent support plate (3).

4. The repair clamping device for a circular metal workpiece according to claim 1, characterized in that: The ends of the two cylinders (2) that are close to each other are fixedly connected to the adjacent side walls of the adjacent support plates (3), and the ends of the cylinders (2) that are away from the support plates (3) are fixedly connected to the inner side walls of the adjacent ends of the mounting plates (1).

5. The repair clamping device for a circular metal workpiece according to claim 1, characterized in that: The two clamping seats (6) are both arc-shaped, and the inner arc surfaces of the two clamping seats (6) are fixedly connected with a plurality of protective pads (11), and the tops of the two bottom plates (7) are both provided with anti-slip grooves.

6. A repair clamping device for a circular metal workpiece according to claim 1, characterized in that: Support legs are fixedly connected to the four corners of the bottom of the mounting plate (1).

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