Clamping device with multifunctional clamping and positioning functions for numerical control machining tool

Abstract

The utility model relates to the field of numerical control machine tools, in particular to a clamping device of a numerical control machine tool with multifunctional clamping and positioning functions, and solves the technical problems that the clamping device of the numerical control machine tool needs to be manually positioned during use, and parts with different shapes are difficult to automatically center-position, clamp and fix. According to the technical scheme, the clamping device of the numerical control machining tool with the multifunctional clamping and positioning functions comprises a base, a support assembly, a lead screw assembly, a first fixing assembly, a supporting assembly, a second fixing assembly and a bearing assembly; according to the clamping device, the motor drives the screw rod main body to rotate, the two movable frames drive the first clamping block to position and clamp a part left and right, and the electric cylinder drives the two second clamping blocks to position and clamp the part front and back, so that the problems that the clamping device of a numerical control machine tool needs to be manually positioned during use, and the clamping device is inconvenient to use are solved. And parts with different shapes are difficult to automatically center-position, clamp and fix.

Description

Technical Field

[0001] The utility model belongs to the field of numerical control machining machines, and in particular relates to a clamping device of a numerical control machining machine with multifunctional clamping and positioning functions. Background Art

[0002] The clamping device of CNC machine tools is usually used to clamp the workpiece to ensure the stability and accuracy of the workpiece position during the machining process.

[0003] The clamping devices of existing CNC machine tools often use cylinders to clamp and fix parts at three angles or two corners. However, when using the existing triangular and two-corner clamping and fixing structures, it is often necessary to manually place the parts at the center position of the fixing structure in order to clamp and fix them better. In addition, the triangular or two-corner fixing structures are not effective in clamping and fixing irregular parts.

[0004] Therefore, in view of the problem that the clamping device of the above-mentioned CNC machining machine tools often requires manual cooperation to perform center positioning of parts during use, and the fixing effect of irregular parts is poor, a clamping device of CNC machining machine tools with multifunctional clamping and positioning is developed. By adding left and right positioning clamping structures, front and rear positioning clamping structures and limiting sliding structures to the clamping device of the CNC machining machine tools, the effect of the device in fixing and clamping connections of different specifications can be greatly improved, and the device can automatically perform center positioning, clamping and fixing of parts, thereby greatly improving the processing and fixing effect and efficiency of the device on parts. Utility Model Content

[0005] In order to overcome the problem that the clamping device of a CNC machine tool needs to be manually positioned during use and is difficult to automatically center and clamp parts of different shapes.

[0006] The technical solution of the utility model is: a clamping device of a CNC machining machine with multifunctional clamping and positioning, comprising a base, a bracket assembly, a screw assembly, a first fixing assembly, a supporting assembly, a second fixing assembly, and a bearing assembly, wherein the upper end of the U-shaped base is equipped with a bearing assembly for assisting in limiting the first fixing assembly, and left and right ends of the bearing assembly are provided with left-right symmetrical bracket assemblies, a motor-driven screw assembly is installed on the bracket assembly, a first fixing assembly for left-right clamping and positioning is installed on the screw assembly, a supporting assembly for carrying the second fixing assembly is installed on the first fixing assembly, and a second fixing assembly for front-back sliding clamping and positioning is installed on the support assembly.

[0007] Preferably, the first fixing component can be used to perform center positioning on the left and right ends of the part, and can also stably clamp and fix the left and right ends. Then, the second fixing component is used to perform front and rear center positioning on the part that has been fixed on the left and right, and clamp and fix the front and rear ends, so as to achieve the effect of automatic positioning and clamping and fixing the parts.

[0008] Preferably, the bearing assembly includes a bearing platform, a slide groove, and a second limiting groove. Two groups of slide grooves are symmetrically provided at the upper end of the bearing platform, and second limiting grooves are provided at the front and rear ends of the bearing platform. The lower end of the bearing platform is fixedly connected to a base. When in use, the slide groove and the slider can be used to assist in limiting the second clamping block, and prevent the second clamping block from shifting when clamping forward and backward, thereby affecting the effect of clamping and fixing the parts.

[0009] Preferably, the bracket assembly includes a first bracket, a second bracket, and a mounting groove. The left end of the support platform is fixedly connected to the second bracket, and the right end of the support platform is fixedly connected to the first bracket. The left and right ends of the second bracket are penetrated by front-to-back symmetrical mounting grooves. When in use, the first bracket cooperates with the second bracket to support the two screw rod bodies and can be driven by the motor to rotate.

[0010] Preferably, the screw rod assembly includes a motor and a screw rod body. The screw rod body is rotatably installed between the first bracket and the second bracket. The motor is installed in the installation groove. The right end of the motor output unit is connected to the left end of the screw rod body. When in use, the motor drives the screw rod body to rotate, while the screw rod body drives the two movable frames to approach each other and center the parts.

[0011] Preferably, the first fixing component includes a movable frame, a first clamping block, a first limiting groove, a first screw groove, and a through hole. The left and right ends of the movable frame are respectively penetrated by a through hole and a first screw groove, the first screw groove is close to the rear end of the movable frame, and the through hole is close to the front end of the movable frame. The movable frame is divided into two, and the two movable frames are symmetrical on the left and right. The first clamping block is fixedly connected to the upper edge of the movable frame. The center of the left and right ends of the movable frame is penetrated by a first limiting groove, the first limiting groove is adapted to the second limiting groove, the first screw groove is adapted to the screw rod body, and the screw rod body passes through the through hole. When in use, through the through hole and the first screw groove, the two movable frames can be made to not affect each other's movement when they are close to each other, and the first limiting groove and the second limiting groove can provide stability for the left and right movement clamping and positioning of the two movable frames.

[0012] Preferably, the support assembly includes a support frame and a fixing groove. The rear end of the movable frame is fixedly connected to the support frame. The two support frames are symmetrical front to back. The front and rear ends of the support frames are penetrated by a fixing groove that is symmetrical left to right. When in use, the electric cylinder can be fixed by the two support frames cooperating with the fixing groove, and drive the second clamping block to move forward and backward along the upper end of the support platform to clamp and position.

[0013] Preferably, the second fixing component includes an electric cylinder, a second clamping block, and a sliding block. The electric cylinder is installed in the fixing groove. The second clamping block is fixedly connected to the end of the electric cylinder piston rod that is close to each other. The lower end of the second clamping block is fixedly connected to a left-right symmetrical sliding block. The sliding block is adapted to the sliding groove. When in use, the two second clamping blocks are driven by the electric cylinder to clamp and position the front and rear ends of the part, and the sliding block is used to assist in limiting the second clamping block, thereby improving the effect of the second clamping block on clamping and fixing the part.

[0014] Beneficial effects of the utility model:

[0015] 1. The first fixing component cooperates with the second fixing component to center the left, right, front and back four ends of the part, and can also stably clamp and fix the left, right, front and back four ends, so as to achieve the effect of automatic positioning and clamping and fixing the part;

[0016] 2. Through the through hole and the first screw groove, the two movable frames can move close to each other without affecting each other, and the first limiting groove and the second limiting groove can provide stability for the left and right movement and clamping positioning of the two movable frames;

[0017] 3. The second clamping block can be assisted in limiting by the slide groove and the slider, and the second clamping block can be prevented from shifting when clamping forward and backward, thereby affecting the effect of clamping and fixing the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a three-dimensional structural schematic diagram of a clamping device of a CNC machining machine tool with multifunctional clamping and positioning according to the utility model;

[0019] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a clamping device of a CNC machine tool with multifunctional clamping and positioning;

[0020] Figure 3 The three-dimensional structure diagram of the unloading assembly, the buffer assembly and the feeding assembly of the clamping device of a CNC machine tool with multifunctional clamping and positioning of the utility model is shown;

[0021] Figure 4The three-dimensional structure disassembled schematic diagram of the auxiliary blanking assembly of a clamping device of a CNC machine tool with multifunctional clamping and positioning of the utility model is shown;

[0022] Figure 5 What is shown is a schematic diagram of the three-dimensional structure disassembly of a housing component and a driving component of a clamping device of a CNC machining machine tool with multifunctional clamping and positioning according to the utility model.

[0023] Explanation of the accompanying drawings: 1-base, 201-first bracket, 202-second bracket, 203-installing groove, 301-motor, 302-screw body, 401-movable frame, 402-first clamping block, 403-first limiting groove, 404-first screw groove, 405-through hole, 501-support frame, 502-fixing groove, 601-electric cylinder, 602-second clamping block, 603-slider, 701-carrying platform, 702-slide groove, 703-second limiting groove. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2 The utility model provides an embodiment: a clamping device of a CNC machining machine with multifunctional clamping and positioning, comprising a base 1, a bracket assembly, a screw assembly, a first fixing assembly, a supporting assembly, a second fixing assembly, and a bearing assembly. The upper end of the U-shaped base 1 is installed with a bearing assembly for auxiliary limiting the first fixing assembly, and left and right ends of the bearing assembly are provided with left-right symmetrical bracket assemblies, a motor-driven screw assembly is installed on the bracket assembly, a first fixing assembly for left-right clamping and positioning is installed on the screw assembly, a supporting assembly for carrying the second fixing assembly is installed on the first fixing assembly, and a second fixing assembly for front-back sliding clamping and positioning is installed on the support assembly.

[0026] Preferably, the first fixing component can be used to perform center positioning on the left and right ends of the part, and can also stably clamp and fix the left and right ends. Then, the second fixing component is used to perform front and rear center positioning on the part that has been fixed on the left and right, and clamp and fix the front and rear ends, so as to achieve the effect of automatic positioning and clamping and fixing the parts.

[0027] See also Figure 3In this embodiment, the bearing assembly includes a bearing platform 701, a slide groove 702, and a second limiting groove 703. The upper end of the bearing platform 701 is provided with two groups of slide grooves 702 that are symmetrical on the left and right. The front and rear ends of the bearing platform 701 are both provided with second limiting grooves 703. The lower end of the bearing platform 701 is fixedly connected to the base 1. When in use, the slide groove 702 cooperates with the slider 603 to assist in limiting the second clamping block 602 and prevent the second clamping block 602 from shifting when performing forward and backward clamping, thereby affecting the effect of clamping and fixing the parts.

[0028] See also Figure 4 In this embodiment, the bracket assembly includes a first bracket 201, a second bracket 202, and a mounting groove 203. The left end of the bearing platform 701 is fixedly connected to the second bracket 202, and the right end of the bearing platform 701 is fixedly connected to the first bracket 201. The left and right ends of the second bracket 202 are penetrated with front-to-back symmetrical mounting grooves 203. When in use, the first bracket 201 cooperates with the second bracket 202 to carry the two screw rod bodies 302, and they can be driven by the motor 301 to rotate. The screw rod assembly includes a motor 301 and a screw rod body 302. The screw rod body 302 is rotatably installed between the first bracket 201 and the second bracket 202. The motor 301 is installed in the mounting groove 203. The right end of the output unit of the motor 301 is connected to the left end of the screw rod body 302. When in use, the motor 301 drives the screw rod body 302 to rotate, and the screw rod body 302 drives the two movable frames 401 to approach each other and center the parts. Position and clamp.

[0029] See also Figure 4In this embodiment, the first fixing component includes a movable frame 401, a first clamping block 402, a first limiting groove 403, a first screw groove 404, and a through hole 405. The left and right ends of the movable frame 401 are respectively penetrated with a through hole 405 and a first screw groove 404. The first screw groove 404 is close to the rear end of the movable frame 401, and the through hole 405 is close to the front end of the movable frame 401. The movable frame 401 is divided into two, and the two movable frames 401 are symmetrical. The first clamping block 402 is fixedly connected to the upper edge of the movable frame 401. The center of the left and right ends of 401 is penetrated with a first limiting groove 403, the first limiting groove 403 is adapted to the second limiting groove 703, the first screw groove 404 is adapted to the screw rod body 302, and the screw rod body 302 passes through the through hole 405. When in use, through the through hole 405 and the first screw groove 404, the two movable frames 401 will not affect each other's movement when they are close to each other, and the first limiting groove 403 and the second limiting groove 703 can provide stability for the left and right movement clamping and positioning of the two movable frames 401, and support The assembly includes a support frame 501 and a fixing groove 502. The rear end of the movable frame 401 is fixedly connected with the support frame 501. The two support frames 501 are symmetrical in front and back. The front and rear ends of the support frames 501 are penetrated with left-right symmetrical fixing grooves 502. When in use, the electric cylinder 601 can be fixed by the two support frames 501 and the fixing grooves 502, and the electric cylinder 601 can be driven to move forward and backward along the upper end of the bearing platform 701 to clamp and position. The second fixing assembly includes the electric cylinder 601, the second clamping block 602, and the sliding Block 603, an electric cylinder 601 is installed in the fixed groove 502, the end of the piston rod of the electric cylinder 601 close to each other is fixedly connected to the second clamping block 602, the lower end of the second clamping block 602 is fixedly connected to a left-right symmetrical slider 603, the slider 603 is adapted to the slide groove 702, when in use, the electric cylinder 601 drives the two second clamping blocks 602 to clamp and position the front and rear ends of the part, and the slider 603 is used to assist the second clamping block 602 in limiting, thereby improving the effect of the second clamping block 602 on clamping and fixing the part.

[0030] When working, first, the base 1 is installed on the CNC machine tool by bolts, and then the parts that need the structure are placed on the upper end of the carrier 701;

[0031] Next, the motor 301 is started, and the motor 301 drives the screw rod body 302 to center, and drives the two movable frames 401 to slide left and right along the second limiting groove 703, so that the first clamping block 402 pushes the left and right ends of the part back and forth, so that it is positioned at the center of the bearing platform 701, and clamps and fixes it;

[0032] Then, the electric cylinder 601 is started, and the electric cylinder 601 drives the second clamping block 602 to move forward and backward along the inner wall of the slide groove 702, and push the connection after left and right positioning to perform front and back center positioning, and then adjust the connection to the center position of the supporting platform 701 and fix it in all directions.

[0033] Through the above steps, by starting the motor 301, the motor 301 drives the screw rod body 302 to rotate, and the two movable frames 401 are moved left and right along the inner wall of the second limit groove 703, so that the two first clamping blocks 402 position and clamp the parts left and right, and then the electric cylinder 601 is started, and the electric cylinder 601 drives the two second clamping blocks 602 to position and clamp the parts front and back, which solves the problem that the clamping device of the CNC machining machine tool needs to be manually positioned when in use, and it is difficult to automatically position and clamp parts of different shapes.

[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A clamping device for a CNC machine tool with multifunctional clamping and positioning, comprising a base (1), characterized in that: The invention also comprises a bracket assembly, a screw assembly, a first fixing assembly, a supporting assembly, a second fixing assembly and a bearing assembly. The upper end of the U-shaped base (1) is provided with a bearing assembly for assisting in limiting the first fixing assembly. The left and right ends of the bearing assembly are provided with bracket assemblies that are symmetrical on both sides. The bracket assembly is provided with a screw assembly driven by a motor. The screw assembly is provided with a first fixing assembly for clamping and positioning on the left and right sides. The first fixing assembly is provided with a supporting assembly for carrying the second fixing assembly. The supporting assembly is provided with a second fixing assembly for clamping and positioning by sliding forward and backward.

2. The clamping device of a CNC machine tool with multifunctional clamping and positioning according to claim 1, characterized in that: The bearing assembly comprises a bearing platform (701), a slide groove (702), and a second limiting groove (703); the upper end of the bearing platform (701) is provided with two groups of slide grooves (702) which are symmetrical on the left and right; the front and rear ends of the bearing platform (701) are both provided with second limiting grooves (703); and the lower end of the bearing platform (701) is fixedly connected to a base (1).

3. The clamping device of a CNC machine tool with multifunctional clamping and positioning according to claim 2, characterized in that: The bracket assembly comprises a first bracket (201), a second bracket (202), and a mounting groove (203); the left end of the bearing platform (701) is fixedly connected to the second bracket (202); the right end of the bearing platform (701) is fixedly connected to the first bracket (201); and the left and right ends of the second bracket (202) are penetrated by a front-to-back symmetrical mounting groove (203).

4. The clamping device of a CNC machine tool with multifunctional clamping and positioning according to claim 3, characterized in that: The screw rod assembly comprises a motor (301) and a screw rod body (302); the screw rod body (302) is rotatably mounted between a first bracket (201) and a second bracket (202); the motor (301) is mounted in a mounting groove (203); and the right end of an output unit of the motor (301) is connected to the left end of the screw rod body (302).

5. The clamping device of a CNC machine tool with multifunctional clamping and positioning according to claim 4, characterized in that: The first fixing assembly comprises a movable frame (401), a first clamping block (402), a first limiting groove (403), a first screw groove (404), and a through hole (405). The left and right ends of the movable frame (401) are respectively penetrated with a through hole (405) and a first screw groove (404). The first screw groove (404) is close to the rear end of the movable frame (401), and the through hole (405) is close to the front end of the movable frame (401). The movable frame (401) is divided into two, and the two movable frames (401) are symmetrical. The first clamping block (402) is fixedly connected to the upper edge of the movable frame (401). The center of the left and right ends of the movable frame (401) is penetrated with a first limiting groove (403). The first limiting groove (403) is matched with the second limiting groove (703). The first screw groove (404) is matched with the screw rod body (302), and the screw rod body (302) passes through the through hole (405).

6. The clamping device of a CNC machine tool with multifunctional clamping and positioning according to claim 5, characterized in that: The support assembly comprises a support frame (501) and a fixing groove (502). The rear end of the movable frame (401) is fixedly connected to the support frame (501). The two support frames (501) are symmetrical in front and back. The front and rear ends of the support frames (501) are penetrated by a fixing groove (502) which is symmetrical in left and right.

7. The clamping device of a CNC machine tool with multifunctional clamping and positioning according to claim 6, characterized in that: The second fixing assembly comprises an electric cylinder (601), a second clamping block (602), and a sliding block (603). The electric cylinder (601) is installed in the fixing groove (502). The second clamping block (602) is fixedly connected to one end of the piston rod of the electric cylinder (601) that is close to each other. The lower end of the second clamping block (602) is fixedly connected to a sliding block (603) that is symmetrical on both sides. The sliding block (603) is adapted to the sliding groove (702).

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