Movable clamping mechanism based on numerical control machine tool

Abstract

The utility model discloses a movable clamping mechanism based on a numerical control machine tool, which comprises a fixed seat used for placing a workpiece during machining of the numerical control machine tool. The moving device is used for moving the clamping structure during machining of the numerical control machine tool; the clamping device is used for clamping a workpiece during machining of the numerical control machine tool; the inner surface of the matching ring is fixedly connected with an air cylinder, and the inner wall of the matching ring is connected with a swing rod in a sliding mode. According to the device, a clamping device is arranged, a workpiece needing to be machined is placed on a top plate, an air cylinder drives a matching ring to slide, the matching ring drives a swing rod to slide, the swing rod drives a clamping plate to be close to a fixing block, the workpiece abuts against baffles to generate extrusion force, a spring between the two baffles elastically deforms, and the two sides of the workpiece are buffered; and four workpieces can be conveniently clamped by the fixing seat at a time, the situation that the workpieces are damaged when the workpieces are directly clamped is avoided, and the clamping purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing, in particular to a mobile clamping mechanism based on a numerically controlled machine tool. Background Art

[0002] CNC machine tools are machine tools controlled by computers. Computers used to control machine tools, whether they are special-purpose computers or general-purpose computers, are collectively referred to as CNC systems. The movement and auxiliary actions of CNC machine tools are all controlled by the instructions issued by the CNC system. After the workpiece is positioned, a clamping force is generated through a certain mechanism to press the workpiece against the positioning element to keep it in an accurate positioning position. There will be no position changes or vibrations due to cutting force, workpiece gravity, centrifugal force or inertia of the CNC lathe, etc., to ensure processing accuracy and safe operation.

[0003] However, in the prior art, during the use of the traditional mobile clamping mechanism based on CNC machine tools, the working efficiency of the equipment is reduced because a fixed seat is used to clamp one workpiece at a time during machine tool processing, and the workpiece is directly clamped, which will cause the extrusion force generated to damage the surface of the workpiece, affecting the use of the workpiece after processing. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a mobile clamping mechanism based on a CNC machine tool, comprising a fixed seat, the fixed seat is used to place the workpiece during CNC machine tool processing; a moving device, the moving device is fixedly connected to the bottom end of the fixed seat, the moving device is used to move the clamping structure during CNC machine tool processing; a clamping device, the clamping device is used to clamp the workpiece during CNC machine tool processing; the clamping device comprises a matching ring, the inner surface of the matching ring is fixedly connected with a cylinder, the output end of the cylinder is slidably connected with the inner surface of the fixed seat, the inner wall of the matching ring is slidably connected with a swing rod, the end of the swing rod away from the cylinder is fixedly connected with a clamping plate, the upper surface of the matching ring is fixedly connected with a fixed block, the workpiece to be processed is placed on the top plate, by starting the cylinder, the cylinder drives the matching ring to slide, the matching ring slides so that the block on the matching ring contacts the swing rod, and the matching ring on the clamping device drives the swing rod to slide. Preferably, the upper surface of the fixed seat is fixedly connected to a top plate, the inner surface of the top plate is slidably connected to the bottom end of the fixed block, the inner surface of the top plate is fixedly connected to a guide rail, and the swing rod drives the clamping plate to move closer to the fixed block, so that the clamping plate slides along the inner wall of the guide rail to clamp and fix the workpiece.

[0005] Preferably, the inner surface of the guide rail is slidably connected with a swing rod, the upper surface of the guide rail is slidably connected with the lower surface of the clamping plate, the inner cavity of the fixed block is slidably connected with an elastic rod, the outer surface of the elastic rod is slidably connected with a spring, the outer surface of the spring is slidably connected to the inner surface of the fixed block, and the outer surface of the elastic rod is fixedly connected with a baffle, which presses the workpiece and the baffle against each other to generate an extrusion force, and the extrusion force causes the baffle and the elastic rod to squeeze each other, so that the spring between the two baffles undergoes elastic deformation, thereby buffering both sides of the workpiece, and when the workpiece leaves the baffle, the extrusion force on the baffle disappears, and the baffle is quickly reset under the elastic force of the spring.

[0006] Preferably, the moving device includes a connecting plate, a slider is fixedly connected to the lower surface of the connecting plate, a mounting plate is provided at the bottom of the connecting plate, a sliding groove is opened in the wall of the mounting plate, the inner wall of the sliding groove is slidably connected to the outer wall of the slider, the hand-cranked wheel drives the second screw to rotate, the rotation of the second screw drives the connecting plate to slide, the connecting plate drives the slider to slide in the sliding groove, the slider slides along the length direction of the support frame, and the whole above the slider slides back and forth, thereby moving the fixed seat as a whole.

[0007] Preferably, the inner surface of the connecting plate is threadedly connected with a first screw, the upper surface of the connecting plate is slidably connected with a sliding block, the upper surface of the sliding block is fixedly connected to a support frame, the outer surface of the first screw is rotatably connected to the inner surface of the support frame, the lower surface of the connecting plate is fixedly connected to a sliding block, the end of the connecting plate close to the mounting plate is threadedly connected to a second screw, the inner surface of the sliding block is slidably connected to the support frame, the inner surface of the support frame is fixedly connected to the bottom end of the cylinder, a person rotates the hand-cranked wheel placed in the front and back directions, and a person rotates the hand-cranked wheel placed in the left and right directions, and the hand-cranked wheel on the moving device drives the first screw to rotate, and the first screw drives the sliding block to slide on the connecting plate, and the sliding block drives the support frame to slide along the direction of the length of the first screw, and the support frame drives the cylinder and the fixed seat to move.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The utility model sets a clamping device, places the workpiece to be processed on the top plate, the cylinder drives the matching ring to slide, the matching ring drives the swing rod to slide, the swing rod drives the clamping plate to move closer to the fixed block, so that the clamping plate slides along the inner wall of the guide rail, and the workpiece and the baffle plate are pressed against each other to generate an extrusion force, the extrusion force causes the baffle plate and the elastic rod to squeeze each other, so that the spring between the two baffle plates undergoes elastic deformation, and buffers both sides of the workpiece, making it convenient for the fixed seat to clamp four workpieces at a time, thereby improving the working efficiency of the equipment, and performing buffering when the workpiece is clamped to avoid direct clamping of the workpiece to cause damage to the workpiece.

[0010] 2. The utility model sets a moving device, and the hand-cranked wheel drives the second screw to rotate, and the rotation of the second screw drives the connecting plate to slide, and the connecting plate drives the slider to slide in the slide groove, and the whole above the slider slides back and forth, so that the fixed seat moves as a whole, the hand-cranked wheel drives the first screw to rotate, and the first screw drives the sliding block to slide on the connecting plate, and the support frame drives the cylinder and the fixed seat to move, so that the support frame drives the cylinder and the fixed seat to move, and realizes the movement of the fixed seat in the front, back, left and right directions, which is convenient for the equipment to process the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the mobile device of the utility model;

[0014] Figure 4 It is a schematic diagram of the structure of the clamping device of the utility model and its exterior;

[0015] Figure 5 It is a structural schematic diagram of the clamping plate and its exterior of the utility model.

[0016] In the figure: 1, fixed seat; 2, moving device; 3, clamping device; 4, mounting plate; 5, slide groove; 6, slider; 7, support frame; 8, connecting plate; 81, sliding block; 9, first screw; 10, second screw; 11, support frame; 12, cylinder; 13, matching ring; 14, swing rod; 15, clamping plate; 16, fixed block; 17, top plate; 18, guide rail; 19, elastic rod; 20, spring; 21, baffle. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0018] Example:

[0019] See also Figure 1 - Figure 5The utility model provides a technical solution: a mobile clamping mechanism based on a CNC machine tool, comprising a fixed seat 1, the fixed seat 1 is used to place the workpiece during CNC machine tool processing; a moving device 2, the moving device 2 is fixedly connected to the bottom end of the fixed seat 1, and the moving device 2 is used to move the clamping structure during CNC machine tool processing; a clamping device 3, the clamping device 3 is used to clamp the workpiece during CNC machine tool processing; the clamping device 3 includes a matching ring 13, the inner surface of the matching ring 13 is fixedly connected to a cylinder 12, and the output end of the cylinder 12 is connected to the fixed seat 1 is slidably connected to the inner surface of the matching ring 13, the inner wall of the matching ring 13 is slidably connected to the swing rod 14, the end of the swing rod 14 away from the cylinder 12 is fixedly connected to the clamping plate 15, the upper surface of the matching ring 13 is fixedly connected to the fixing block 16, the upper surface of the fixing seat 1 is fixedly connected to the top plate 17, the inner surface of the top plate 17 is slidably connected to the bottom end of the fixing block 16, the inner surface of the top plate 17 is fixedly connected to the guide rail 18, the inner surface of the guide rail 18 is slidably connected to the swing rod 14, and the upper surface of the guide rail 18 is slidably connected to the lower surface of the clamping plate 15.

[0020] The inner cavity of the fixed block 16 is slidably connected with an elastic rod 19, and the outer surface of the elastic rod 19 is slidably connected with a spring 20. The outer surface of the spring 20 is slidably connected to the inner surface of the fixed block 16, and the outer surface of the elastic rod 19 is fixedly connected with a baffle 21. The moving device 2 includes a connecting plate 8, the lower surface of the connecting plate 8 is fixedly connected with a slider 6, the bottom of the connecting plate 8 is provided with a mounting plate 4, the wall of the mounting plate 4 is provided with a slide groove 5, the inner wall of the slide groove 5 is slidably connected to the outer wall of the slider 6, the inner surface of the connecting plate 8 is threadedly connected with a first screw 9, the upper surface of the connecting plate 8 is slidably connected with a slide block 81, the upper surface of the slide block 81 is fixedly connected with a support frame 11, the outer surface of the first screw 9 is rotatably connected to the inner surface of the support frame 7, the lower surface of the connecting plate 8 is fixedly connected with the slider 6, the end of the connecting plate 8 close to the mounting plate 4 is threadedly connected with a second screw 10, the inner surface of the slider 6 is slidably connected to the support frame 7, and the inner surface of the support frame 11 is fixedly connected to the bottom end of the cylinder 12.

[0021] Working principle:

[0022] When in use, first fix the mounting plate 4 on the CNC machine tool with bolts, and the personnel rotate the hand-cranked wheel placed in the front-to-back direction, and the hand-cranked wheel drives the second screw 10 to rotate, and the second screw 10 rotates to drive the connecting plate 8 to slide, and the connecting plate 8 drives the slider 6 to slide in the slide groove 5, and the slider 6 slides along the length direction of the support frame 7, and the whole above the slider 6 slides forward and backward, so that the fixed seat 1 moves as a whole, and the personnel rotate the hand-cranked wheel placed in the left-right direction, and the hand-cranked wheel on the moving device 2 drives the first screw 9 to rotate, and the first screw 9 drives the sliding block 81 to slide on the connecting plate 8, and the sliding block 81 drives the support frame 11 to slide along the length direction of the first screw 9, and the support frame 11 drives the cylinder 12 and the fixed seat 1 to move;

[0023] The workpiece to be processed is placed on the top plate 17, and the cylinder 12 is started. The cylinder 12 drives the matching ring 13 to slide. The matching ring 13 slides so that the block on the matching ring 13 contacts the swing rod 14. The matching ring 13 on the clamping device 3 drives the swing rod 14 to slide. The swing rod 14 drives the clamping plate 15 to move closer to the fixed block 16, so that the clamping plate 15 slides along the inner wall of the guide rail 18 to clamp and fix the workpiece, and the workpiece and the baffle 21 are pressed against each other to generate an extrusion force. The extrusion force squeezes the baffle 21 and the elastic rod 19 against each other, so that the spring 20 between the two baffles 21 is elastically deformed to buffer the two sides of the workpiece. When the workpiece leaves the baffle 21, the extrusion force on the baffle 21 disappears, and the baffle 21 is quickly reset under the elastic force of the spring 20.

[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A mobile clamping mechanism based on a CNC machine tool, comprising: A fixed seat (1), wherein the fixed seat (1) is used to place a workpiece during CNC machine tool processing; A moving device (2), the moving device (2) being fixedly connected to the bottom end of the fixed seat (1), and the moving device (2) being used for moving the clamping structure during CNC machine tool processing; A clamping device (3), wherein the clamping device (3) is used to clamp a workpiece during machining by a numerically controlled machine tool; Features: The clamping device (3) comprises a matching ring (13), the inner surface of which is fixedly connected to a cylinder (12), the output end of which is slidably connected to the inner surface of a fixed seat (1), the inner wall of which is slidably connected to a swing rod (14), the end of which, away from the cylinder (12), is fixedly connected to a clamping plate (15), and the upper surface of the matching ring (13) is fixedly connected to a fixing block (16).

2. The mobile clamping mechanism based on a CNC machine tool according to claim 1, characterized in that: The upper surface of the fixing seat (1) is fixedly connected to a top plate (17), the inner surface of the top plate (17) is slidably connected to the bottom end of the fixing block (16), and the inner surface of the top plate (17) is fixedly connected to a guide rail (18).

3. The mobile clamping mechanism based on a CNC machine tool according to claim 2, characterized in that: The inner surface of the guide rail (18) is slidably connected to a swing rod (14), and the upper surface of the guide rail (18) is slidably connected to the lower surface of the clamping plate (15).

4. The mobile clamping mechanism based on a CNC machine tool according to claim 2, characterized in that: The inner cavity of the fixed block (16) is slidably connected to an elastic rod (19), the outer surface of the elastic rod (19) is slidably connected to a spring (20), the outer surface of the spring (20) is slidably connected to the inner surface of the fixed block (16), and the outer surface of the elastic rod (19) is fixedly connected to a baffle (21).

5. The mobile clamping mechanism based on a CNC machine tool according to claim 1, characterized in that: The moving device (2) comprises a connecting plate (8), the lower surface of which is fixedly connected to a slider (6), a mounting plate (4) is provided at the bottom of the connecting plate (8), a sliding groove (5) is provided in the wall of the mounting plate (4), and the inner wall of the sliding groove (5) is slidably connected to the outer wall of the slider (6).

6. The mobile clamping mechanism based on a CNC machine tool according to claim 5, characterized in that: The inner surface of the connecting plate (8) is threadedly connected to a first screw rod (9), the upper surface of the connecting plate (8) is slidably connected to a sliding block (81), the upper surface of the sliding block (81) is fixedly connected to a support frame (11), the outer surface of the first screw rod (9) is rotatably connected to the inner surface of the support frame (7), the lower surface of the connecting plate (8) is fixedly connected to a sliding block (6), the end of the connecting plate (8) close to the mounting plate (4) is threadedly connected to a second screw rod (10), the inner surface of the sliding block (6) is slidably connected to the support frame (7), and the inner surface of the support frame (11) is fixedly connected to the bottom end of the cylinder (12).

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