Electric clamping tool for long circular workpiece

Abstract

The utility model relates to a long circular workpiece electric clamping tool which comprises a base, a right clamping seat and a left clamping seat are installed on the base, the opposite faces of the right clamping seat and the left clamping seat are in a V shape, a plurality of sliding blocks are installed on the two sides of the bottom of the right clamping seat, the sliding blocks are installed on a linear rail in a sliding mode, the linear rail is installed on the base, and the sliding blocks are installed on the base. A lead screw is arranged on the lower portion of the right side face of the right clamping base in a penetrating mode, a driving device is installed at the right end of the lead screw, and the driving device drives the right clamping base to do left-right reciprocating motion. The electric clamping tool can automatically adjust the span between the left clamping seat and the right clamping seat, is suitable for clamping circular workpieces with different diameters, can realize clamping of the circular workpieces with different lengths through combination of a plurality of sets of electric clamping tools, is particularly suitable for long circular workpieces, is high in clamping efficiency, can effectively guarantee the coaxiality of the long circular workpieces, and is high in practicability. And the machining quality and efficiency of the long circular workpiece are improved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to an electric clamping fixture for an oblong workpiece. Background Technology

[0002] Large machine tools process long oval workpieces that are 10 meters or more in length. When machining and clamping such workpieces, there are usually problems such as clamping deformation, difficulty in controlling coaxiality, insufficient stability, low clamping efficiency, and inaccurate positioning, which result in poor machining quality and low machining efficiency.

[0003] Therefore, this application aims to provide an electric clamping tool suitable for oblong workpieces of different lengths and diameters. Utility Model Content

[0004] This utility model provides an electric clamping fixture for oblong workpieces.

[0005] The specific technical solution of this utility model is: an electric clamping fixture for an oblong workpiece, including a base, on which a right clamping seat and a left clamping seat are installed. The opposing surfaces of the right clamping seat and the left clamping seat are V-shaped. Multiple sliders are installed on both sides of the bottom of the right clamping seat. The sliders are slidably mounted on a linear guide. The linear guide is mounted on the base. A lead screw is provided through the lower part of the right side of the right clamping seat. A driving device is installed at the right end of the lead screw. The driving device drives the right clamping seat to reciprocate left and right.

[0006] Furthermore, preferably, the driving device includes a servo motor, the transmission end of which is connected to a drive wheel, and the drive wheel is connected to the right end of the lead screw via a belt drive.

[0007] Furthermore, preferably, the right end of the lead screw is rotatably mounted on the right side of the support base, and the servo motor is mounted above the support base.

[0008] Furthermore, preferably, a protective cover is provided on the outer periphery of the lead screw and the drive device.

[0009] Furthermore, preferably, a wear-resistant layer is installed on the inclined surfaces of both the right clamping seat and the left clamping seat.

[0010] The beneficial effects of this utility model are:

[0011] (1) The electric clamping fixture can automatically adjust the span of the left and right clamping seats to adapt to the clamping of round workpieces of different diameters; when the round workpiece needs to be rotated to adjust the processing position, the two clamping seats can automatically loosen and tighten, making the operation efficient and convenient, and greatly improving the clamping efficiency.

[0012] (2) By combining multiple sets of electric clamping fixtures, it is possible to clamp circular workpieces of different lengths. It is especially convenient for clamping oblong workpieces. Each servo motor can be controlled to work together at the same time to quickly complete the clamping. Moreover, it can effectively ensure the coaxiality of oblong workpieces and improve the processing quality and efficiency of oblong workpieces.

[0013] (3) The electric clamping fixture uses a servo motor as the driving device, which is conducive to accurately controlling the movement stroke of the clamping seat and improving the clamping accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an electric clamping fixture for an oblong workpiece according to this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of an electric clamping fixture for an oblong workpiece according to this utility model. Figure 2 ;

[0016] Figure 3 for Figure 1 Top view;

[0017] Figure 4 for Figure 3 AA cross-section view;

[0018] Figure 5 for Figure 1 The right view;

[0019] Figure 6 This is the front view of the locking mechanism;

[0020] Figure 7 Right view of the locking mechanism;

[0021] Figure 8 This is a schematic diagram of the working structure of this utility model;

[0022] Figure 9 This is a right view of the working state of this utility model;

[0023] In the diagram: 1-base; 2-right clamping seat; 3-left clamping seat; 4-slider; 5-linear guide; 6-lead screw; 71-servo motor; 72-drive wheel; 73-belt; 8-support seat; 9-protective cover; 10-worktable; 11-locking mechanism; 111-cylinder mounting seat; 112-hydraulic cylinder; 113-chain; 114-chain fixing seat; 12-oblong workpiece. Detailed Implementation

[0024] To make the technical problems and solutions solved by this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 5 As shown, an electric clamping fixture for an oblong workpiece includes a base 1, on which a right clamping seat 2 and a left clamping seat 3 are mounted. The right clamping seat 2 is movable, while the left clamping seat 3 is fixed. The opposing surfaces of the right clamping seat 2 and the left clamping seat 3 form a V-shape.

[0028] Specifically, multiple sliders 4 are installed on both sides of the bottom of the right clamping seat 2 (such as...). Figure 4 The diagram shows four sliders, symmetrically arranged in pairs on either side of the bottom of the right clamping seat 2. Slider 4 is slidably mounted on the linear guide 5, which is mounted on the base 1. A lead screw 6 runs through the lower right side of the right clamping seat 3, with a drive device 7 mounted at its right end. The drive device 7 drives the right clamping seat 2 to reciprocate left and right, moving closer to or further away from the left clamping seat 3, thus freely adjusting the V-shaped span between the two clamping seats to accommodate circular workpieces of different diameters. When the circular workpiece needs to be rotated to adjust its machining position (such as for face-changing drilling, grooving, etc.), the two clamping seats can automatically loosen and tighten again, making operation highly efficient and convenient, and significantly improving clamping efficiency.

[0029] Preferably, the driving device includes a servo motor 71. The conveying end of the servo motor 71 is connected with a driving wheel 72, and the driving wheel 72 is connected to the right end of the screw rod 6 through a belt 73. The kinetic energy of the servo motor 71 is transmitted to the screw rod 6 through belt drive, driving the screw rod 6 to rotate, and then driving the right clamping seat 2 connected to the screw rod 6 to move reciprocally. The servo motor is connected to the controller, enabling automatic clamping and retraction of the clamping seat. Moreover, the servo motor can accurately control the torque and positioning through the control system, thereby accurately controlling the movement stroke of the right clamping seat and improving the clamping accuracy.

[0030] Furthermore, as Figure 4 shown, the right end of the screw rod 6 is rotatably installed on the right side surface of the support seat 8, and the servo motor 71 is installed above the support seat 8. The setting of the support seat 8 is conducive to the stable installation of the screw rod 6 and the servo motor 71.

[0031] Furthermore, a protective cover 9 is also provided on the outer periphery of the screw rod 6 and the driving device 7, which plays a protective role.

[0032] Preferably, wear-resistant layers 10 are installed on the inclined surfaces of the right clamping seat 2 and the left clamping seat 3, reducing the mutual wear of the contact surfaces between the workpiece and the clamping seats.

[0033] During use, as Figure 8 Figure 9 shown, multiple sets of electric clamping workpieces are installed on the workbench 10. According to the diameter of the circular workpiece 12 to be clamped, the span between the left clamping seat 3 and the right clamping seat 2 is adjusted. During adjustment, the servo motors 71 of multiple sets of electric clamping workpieces are started simultaneously, driving the driving wheels 72 to rotate. The screw rod 6 is driven to rotate through the belt 73, and then the right clamping seat 2 is driven to approach the left clamping seat 3. When the set span is reached, all the servo motors 71 stop working, and the span adjustment is completed. Subsequently, the long circular workpiece 12 is placed between the left and right clamping seats of all the electric clamping workpieces, and the entire long circular workpiece 12 is clamped above multiple sets of electric clamping workpieces.

[0034] In order to fix the long circular workpiece 12 above the electric clamping workpiece, a locking mechanism 11 is also required for each set of electric clamping workpieces. As Figure 6 Figure 7 shown, the locking mechanism 11 includes an oil cylinder mounting seat 111, inside which a hydraulic oil cylinder 112 is installed. The piston rod output end of the hydraulic oil cylinder 112 is connected with a chain 113, and the end of the chain 113 is connected to the chain fixing seat 114. After the entire long circular workpiece 12 is clamped above multiple sets of electric clamping workpieces, the hydraulic oil cylinder 112 tightens the chain 113 according to the set output pulling force, making the chain 113 lock above the long circular workpiece 12 to fix it. Of course, the locking mechanism supporting the electric clamping workpiece is not limited to the above structure, and it can also be other hoop structures.

[0035] It should also be noted that the output tension of the locking mechanism 11 can be freely adjusted according to the size of the pipe. The larger the pipe, the greater the tension and the smaller the chain contraction; the smaller the pipe, the smaller the tension and the greater the chain contraction. The maximum diameter of a circular workpiece that the locking mechanism 11 can lock is 1250mm.

[0036] It is evident that by combining multiple sets of electric clamping fixtures, it is possible to clamp circular workpieces of different lengths, which is especially convenient for clamping oblong workpieces. Each servo motor can be controlled to work together simultaneously to quickly complete the clamping, and the coaxiality of oblong workpieces can be effectively guaranteed, thereby improving the processing quality and efficiency of oblong workpieces.

[0037] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric clamping fixture for an oblong workpiece, characterized in that: Includes a base (1), on which a right clamping seat (2) and a left clamping seat (3) are mounted. The opposite surfaces of the right clamping seat (2) and the left clamping seat (3) are V-shaped. Multiple sliders (4) are mounted on both sides of the bottom of the right clamping seat (2). The sliders (4) are slidably mounted on a linear guide (5). The linear guide (5) is mounted on the base (1). A lead screw (6) is provided through the lower part of the right side of the right clamping seat (2). A driving device is installed at the right end of the lead screw (6). The driving device drives the right clamping seat (2) to reciprocate left and right.

2. The electric clamping fixture for an oblong workpiece according to claim 1, characterized in that: The drive device includes a servo motor (71), the transmission end of which is connected to a drive wheel (72), and the drive wheel (72) is connected to the right end of the lead screw (6) via a belt (73).

3. The electric clamping fixture for an oblong workpiece according to claim 2, characterized in that: The right end of the lead screw (6) is rotatably mounted on the right side of the support base (8), and the servo motor (71) is mounted above the support base (8).

4. The electric clamping fixture for an oblong workpiece according to claim 3, characterized in that: The outer periphery of the lead screw (6) and the drive device (7) is also provided with a protective cover (9).

5. The electric clamping fixture for an oblong workpiece according to any one of claims 1-4, characterized in that: Wear-resistant layers (10) are installed on the inclined surfaces of the right clamping seat (2) and the left clamping seat (3).

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