Part clamping structure for machining of numerical control machine tool

Abstract

The utility model discloses a part clamping structure for machining of a numerical control machine tool, which belongs to the technical field of numerical control machine tools and comprises a machining table, and four groups of moving grooves are formed in the top of the machining table. The clamping device further comprises a clamping assembly used for fixing parts, the clamping assembly comprises four sets of moving bases, the moving bases are in sliding fit with the moving grooves, chucks are fixedly installed on the tops of one sides of the moving bases, and rubber pads are bonded to the sides, making contact with the parts, of the chucks. The clamping device further comprises a tightening assembly used for tightening the clamping assembly. The tightening assembly comprises four sets of inclined panels. By arranging the clamping assembly and the tightening assembly, the clamping device is simple in structure, convenient to use and practical, the four sets of moving bases and chucks can be controlled through the tightening assembly to move inwards at the same time, the periphery of a part is clamped and fixed, the application range is wide, stable clamping force can be provided for parts of most shapes, and therefore the machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a component clamping structure machined by a numerical control machine tool. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool. It is an automated machine tool equipped with a program control system. CNC machine tools can effectively reduce the processing time and auxiliary time of parts. The spindle speed and feed rate of CNC machine tools have a wide range, allowing the machine tools to perform strong cutting with large cutting volumes. CNC machine tools are entering the era of high-speed processing. The rapid movement and positioning of the moving parts of CNC machine tools and high-speed cutting processing have greatly improved productivity. In addition, when used in conjunction with the tool magazine of the machining center, continuous processing of multiple processes can be achieved on one machine tool, reducing the inter-process turnover time of semi-finished products and improving productivity.

[0003] After searching, in the prior art, Chinese patent publication number: CN220145311U discloses a clamping structure for a CNC machine tool. The utility model comprises a table and a rotating mechanism, the rotating mechanism comprises a fixed column, the fixed column is movably connected with a steel ball through a rotating groove, a rotating member is fixedly installed on the inner wall of the steel ball, the interior of the rotating member is movably connected with a rotating shaft through the meshing of a driven tooth and an active tooth, a cross bar is fixedly installed on the upper end of the rotating shaft, fixed grooves are provided on the surface of the table near the four corners, the bottom size of the inner wall of the fixed groove is consistent with that of the fixed column, the fixed column is fixedly installed inside the fixed groove, the rotating groove is provided inside the fixed column, the steel ball is rotatably connected inside the rotating groove, and through the set fixed column, rotating groove, rotating member, steel ball, driven tooth, rotating shaft, active tooth and cross bar, the fixed mechanism can be cooperated to clamp different object surfaces through the rotation angle, which is convenient and quick.

[0004] But this device still has the following defects:

[0005] The device uses a suction plate to fix parts during use. When facing cylindrical, tubular or disc-shaped parts with curved outer surfaces, it is difficult to fix the parts. The device does not solve this problem well. Utility Model Content

[0006] The purpose of the utility model is to provide a component clamping structure for machining by a CNC machine tool. By setting a tightening assembly and a tightening assembly, four groups of movable seats and chucks can be controlled to move inward at the same time, so as to clamp and fix the components on all sides. The utility model has a wide range of applications and can clamp and fix components of most shapes to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A component clamping structure for machining by a numerical control machine tool comprises a machining table, wherein the top of the machining table is provided with four groups of movable grooves;

[0009] It also includes a clamping assembly for fixing parts, the clamping assembly includes four groups of moving seats, the moving seats are slidably matched with the moving grooves, a clamp is fixedly installed on the top of one side of the moving seat, and a rubber pad is bonded to the side of the clamp that contacts the parts;

[0010] It also includes a tightening assembly for tightening the clamping assembly, the tightening assembly includes four groups of inclined panels, the top of the inclined panel is fixedly installed on the bottom of the moving seat, the bottom inclined surface of the inclined panel abuts against the top of the inner wall of the tightening barrel, and the bottom center of the tightening barrel is fixedly connected to the telescopic end of the cylinder.

[0011] Preferably, a slide bar is fixedly installed in the middle of the movable groove, and the movable seat is slidably matched with the slide bar.

[0012] Preferably, a spring is sleeved on the surface of the sliding rod, one end of the spring abuts against one side of the moving seat, and the other end of the spring abuts against the bottom of one side of the moving groove.

[0013] Preferably, limiting grooves are provided on both sides of the interior of the movable groove, and limiting blocks are integrally formed on both sides of the bottom of the movable seat, and the limiting blocks are slidably matched with the limiting grooves.

[0014] Preferably, the cylinder is fixedly mounted on the bottom of the mounting frame, and the top of the mounting frame is fixedly connected to the processing table.

[0015] Preferably, two sets of slide grooves are fixedly installed on the inner walls on both sides of the mounting frame, and limit plates are slidably fitted in the slide grooves, and the limit plates are fixedly installed on the outer walls on both sides of the tightening barrel.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model has a simple structure, is convenient and practical, and can control the four groups of movable seats and the chuck to move inward at the same time through the tightening assembly to clamp and fix the parts on all sides. The utility model has a wide range of applications and can provide stable clamping force for parts of most shapes, thereby improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the processing table;

[0020] Figure 3 for Figure 2Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. processing table; 2. moving groove; 3. moving seat; 4. chuck; 5. rubber pad; 6. inclined plate; 7. tightening barrel; 8. cylinder; 9. slide rod; 10. spring; 11. limit groove; 12. limit block; 13. mounting frame; 14. slide groove; 15. limit plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3 , the utility model provides a technical solution:

[0024] A component clamping structure for machining by a CNC machine tool comprises a machining table 1. Four groups of movable grooves 2 are provided on the top of the machining table 1. By providing the four groups of movable grooves 2 symmetrically on the center of the surface of the machining table 1, a movable seat 3 can be installed and the moving direction of the movable seat 3 can be limited.

[0025] It also includes a clamping assembly for fixing parts, which includes four groups of moving seats 3, which are slidably matched with the moving grooves 2, and a chuck 4 is fixedly installed on the top of one side of the moving seat 3. By setting up four groups of moving seats 3 and chucks 4, the parts can be clamped and fixed on all sides, and it can be suitable for parts of most shapes; a rubber pad 5 is bonded to the side of the chuck 4 that contacts the part, and the rubber pad 5 can prevent the surface of the part from being scratched during the clamping process; a slide bar 9 is fixedly installed in the middle of the moving groove 2, and the moving seat 3 is slidably matched with the slide bar 9, and a spring 10 is sleeved on the surface of the slide bar 9, and one end of the spring 10 is in contact with one side of the moving seat 3 The other end of the spring 10 is in contact with the bottom of one side of the moving groove 2. By setting the slide bar 9, the moving seat 3 can be limited to prevent the moving seat 3 from rotating or falling off in the moving groove 2. When used in conjunction with the spring 10, the moving seat 3 and the clamping head 4 can be pushed back to their original positions after the clamping is completed, so as to facilitate the next clamping. Limiting grooves 11 are provided on both sides of the interior of the moving groove 2, and limiting blocks 12 are integrally formed on both sides of the bottom of the moving seat 3. The limiting blocks 12 are slidably matched with the limiting grooves 11. By setting the limiting grooves 11 and the limiting blocks 12 in conjunction with each other, the moving seat 3 is further limited, and the stability of the moving seat 3 during movement and clamping is improved.

[0026] The clamping assembly is also provided with a tightening assembly for tightening the clamping assembly, the tightening assembly comprising four groups of inclined panels 6, the top of the inclined panels 6 is fixedly mounted on the bottom of the movable seat 3, the bottom inclined surface of the inclined panels 6 contacts the top of the inner wall of the tightening barrel 7, the bottom center of the tightening barrel 7 is fixedly connected to the telescopic end of the cylinder 8, the cylinder 8 is fixedly mounted on the bottom of the mounting frame 13, the top of the mounting frame 13 is fixedly connected to the processing table 1, and the tightening barrel 7 is provided, and the inclined panels 6 are tightened by moving upward, so that the four groups of movable seats 3 and the chuck 4 are tightened at the same time, and the parts are clamped in the center of the processing table 1; two groups of slide grooves 14 are fixedly mounted on the inner walls of both sides of the mounting frame 13, and the slide grooves 14 are slidably matched with limit plates 15, and the limit plates 15 are fixedly mounted on the outer walls of both sides of the tightening barrel 7, and the moving direction of the tightening barrel 7 can be limited by setting the slide grooves 14 and the limit plates 15 for use in combination, thereby improving the stability of the tightening barrel 7 when moving up and down.

[0027] During specific use, the device is moved to the specified position, the parts to be processed are placed at the center of the top surface of the processing table 1, the telescopic end of the control cylinder 8 is extended upward, the telescopic end of the cylinder 8 pushes the tightening barrel 7 to move upward, the inclined plate 6 that abuts on the top of the inner wall of the tightening barrel 7 is pushed, and the four groups of inclined plates 6 drive the four groups of moving seats 3 to move toward the center of the processing table 1 at the same time, and the telescopic end of the control cylinder 8 is continuously extended until the rubber pads 5 on one side of the four groups of chucks 4 abut against the parts and clamp them around; when the processing is completed, the telescopic end of the control cylinder 8 is retracted, and the telescopic end of the cylinder 8 pulls the shrinking barrel to move downward. After the inclined plate 6 loses the thrust of the tightening barrel 7, the compressed spring 10 pushes the moving seat 3 and the chuck 4 to slide in the slide groove 14 and move to the initial position, thereby releasing the parts.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A component clamping structure for machining by a CNC machine tool, characterized in that: It comprises a processing table (1), wherein the top of the processing table (1) is provided with four groups of movable grooves (2); It also includes a clamping assembly for fixing the parts, the clamping assembly including four groups of movable seats (3), the movable seats (3) slidingly cooperate with the movable grooves (2), a clamping head (4) is fixedly mounted on the top of one side of the movable seat (3), and a rubber pad (5) is bonded to the side of the clamping head (4) that contacts the parts; It also includes a tightening assembly for tightening the clamping assembly, the tightening assembly including four groups of inclined panels (6), the top of the inclined panels (6) being fixedly mounted on the bottom of the moving seat (3), the bottom inclined surface of the inclined panels (6) being in contact with the top of the inner wall of the tightening barrel (7), and the bottom center of the tightening barrel (7) being fixedly connected to the telescopic end of the cylinder (8).

2. The component clamping structure for machining by a CNC machine tool according to claim 1, characterized in that: A sliding rod (9) is fixedly installed in the middle of the movable groove (2), and the movable seat (3) is slidably matched with the sliding rod (9).

3. The component clamping structure for machining by a CNC machine tool according to claim 2, characterized in that: A spring (10) is sleeved on the surface of the sliding rod (9), one end of the spring (10) abuts against one side of the moving seat (3), and the other end of the spring (10) abuts against the bottom of one side of the moving groove (2).

4. The component clamping structure for machining by a CNC machine tool according to claim 3, characterized in that: Limiting grooves (11) are provided on both sides of the interior of the movable groove (2), and limiting blocks (12) are integrally formed on both sides of the bottom of the movable seat (3), and the limiting blocks (12) are slidably matched with the limiting grooves (11).

5. The component clamping structure for machining by a CNC machine tool according to claim 1, characterized in that: The cylinder (8) is fixedly mounted on the bottom of the mounting frame (13), and the top of the mounting frame (13) is fixedly connected to the processing table (1).

6. The component clamping structure for machining by a CNC machine tool according to claim 5, characterized in that: Two sets of slide grooves (14) are fixedly mounted on the inner walls on both sides of the mounting frame (13), and limit plates (15) are slidably fitted in the slide grooves (14), and the limit plates (15) are fixedly mounted on the outer walls on both sides of the tightening barrel (7).

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