Clamp for numerical control machine tool

Abstract

The utility model discloses a clamp for a numerical control machine tool, and relates to the technical field of numerical control machine tools. The clamp comprises a clamp base, a mounting hole is formed in the clamp base, the mounting hole is located in the center of the clamp base, a first driving motor is arranged under the clamp base, an output shaft of the first driving motor is installed in the mounting hole, a fixing ring is arranged on the first driving motor, and the fixing ring is connected with the first driving motor. The fixing ring is welded to a shell of the first driving motor, a plurality of fixing bolts are installed on the fixing ring, and the fixing bolts are evenly arranged on the fixing ring. The numerical control machine tool fixture has the advantages that workpieces can be adjusted in multiple directions in the machining process of a numerical control machine tool, so that time is saved, working efficiency is improved, components in the fixture are protected by arranging the fixture cover and the dustproof filter screen, and the components in the fixture are prevented from being damaged by dust, chippings and the like in the machining process; therefore, the service life of the clamp is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, and specifically relates to a fixture for CNC machine tools. Background Technology

[0002] Machine tool fixtures are an essential part of the machining process, and their primary function is for clamping and mounting. Most existing fixtures for CNC machine tools include three-jaw self-centering chucks, four-jaw single-action chucks, machine tool vises, universal indexing heads, center rests, and electromagnetic chucks. Using these types of fixtures can shorten the production preparation cycle, reduce the variety of fixtures, and thus lower production costs.

[0003] A Chinese patent discloses a fixture for CNC machine tools that can clamp large cylindrical workpieces on CNC machine tools, reducing maintenance costs and enhancing clamping capacity. However, this fixture cannot adjust the machining surface of the workpiece during the machining process, requiring the machine tool to stop after machining one side of the workpiece and wait for the machining surface to be readjusted before it can start machining again, which is time-consuming, labor-intensive, and reduces work efficiency. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a fixture for CNC machine tools to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a fixture for CNC machine tools, including a fixture base with a mounting hole at the center. A drive motor is located directly below the fixture base, and the output shaft of the drive motor is installed in the mounting hole. A fixing ring is provided on the drive motor, which is welded to the housing of the drive motor. Several fixing bolts are installed on the fixing ring, and the fixing bolts are evenly arranged on the fixing ring.

[0007] Furthermore, the fixture base includes an upper base and a lower base. The upper base is provided with a limiting body, which is coaxial with the upper base. The upper base is provided with a plurality of screw holes one, which are located outside the limiting body. The lower base is provided with screw holes two, which correspond to screw holes one.

[0008] Furthermore, an air pump is installed on the lower base, the air pump is located between the upper base and the lower base, a dust filter is provided between the upper base and the lower base, the air pump is wrapped inside the dust filter, and a second drive motor is installed on the upper base, the second drive motor is located in the middle of the upper base.

[0009] Furthermore, the output shaft of the second drive motor is connected to one end of the lead screw, and a connecting rod mounting plate is installed on the lead screw, with a thread in the connecting rod mounting plate that matches the lead screw.

[0010] Furthermore, a first connecting rod is mounted on the connecting rod mounting plate, and a second connecting rod is mounted on the first connecting rod. The second connecting rod, the first connecting rod, and the connecting rod mounting plate are connected by a connecting rod shaft. A telescopic rod is mounted on the connecting rod mounting plate, and the telescopic rod corresponds to the second connecting rod. One end of the telescopic rod is mounted on the second connecting rod. A pivot is installed between the second connecting rod and the telescopic rod. The first connecting rod and the second connecting rod form a V-shape.

[0011] Furthermore, a fixing plate is installed on the second connecting rod. The fixing plate is connected to the second connecting rod via a second rotating shaft. A rubber ring is provided on one side of the fixing plate. A flexible hose is installed on the fixing plate. The flexible hose is located inside the rubber ring. The other end of the flexible hose is connected to an air pump.

[0012] Furthermore, a clamp cover is installed on the upper base, and a screw hole three is opened on the clamp cover, which corresponds to screw hole one. A limit groove is opened on the clamp cover, which fits with a limit body. A limit post is provided inside the clamp cover, and the limit post is connected to one end of the lead screw.

[0013] Furthermore, the clamp cover, upper base, and lower base are connected by bolts, and the bolts are engaged with screw holes one, two, and three.

[0014] Furthermore, the first connecting rod, the second connecting rod, and the telescopic rod all extend out from the limiting groove.

[0015] This utility model has the following beneficial effects: By using a CNC machine tool fixture, the fixture is first fixed to the CNC machine tool through the cooperation of the fixing ring and fixing bolt on the drive motor. Then, the fixture is electrically connected to the CNC machine tool so that it can synchronize with the CNC machine tool. After the fixture is installed, the operator places the workpiece to be processed onto the fixture. The CNC machine tool then controls the fixture to fix the workpiece. First, the drive motor on the upper base starts rotating forward. The forward-rotating drive motor drives the lead screw, causing the connecting rod mounting plate on the lead screw to rise. When the connecting rod mounting plate rises to a certain height, the drive motor stops driving. When the connecting rod mounting plate reaches the appropriate height, the telescopic rod on the mounting plate begins to extend, causing the angle between the V-shaped connecting rods one and two to increase. Connecting rods one and two extend and lengthen, supporting the workpiece with the fixed plate. Once the fixed plate is firmly against the inner wall of the workpiece, the telescopic rod stops extending. Simultaneously, the air pump located between the upper and lower bases starts operating, extracting air from the fixed plate against the inner wall of the workpiece through a hose. This firmly secures the workpiece to the fixture. During this process, the rubber ring on the fixed plate serves both a sealing function and protects the workpiece, preventing damage during clamping. After the workpiece is fixed in place by the fixture, the CNC machine tool can begin machining it. During machining, the fixture can rotate the workpiece via a drive motor under the fixture base, allowing the machine tool to better machine the workpiece. When the CNC machine tool needs to machine the workpiece vertically, the drive motor drives the lead screw to extend or lower the connecting rod mounting plate on the lead screw via forward or reverse rotation, thereby controlling the vertical position adjustment of the workpiece to facilitate vertical machining. The fixture cover on the upper base provides effective protection for the internal components, and the dustproof space between the upper and lower bases... The filter screen prevents dust and debris from entering the air pump, thus avoiding damage to the air pump caused by dust and debris. A drive motor is installed under the fixture plate, allowing the fixture to rotate the workpiece during machining. At the same time, through the cooperation between the drive motor, the lead screw, the connecting rod, and the mounting plate, the fixture can make multi-directional adjustments to the workpiece during CNC machine tool machining, thereby saving time and improving work efficiency. By providing a fixture cover and a dust filter, the components inside the fixture are protected, preventing damage to the components due to dust and debris during machining, thus extending the service life of the fixture.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the left sectional view of the present invention;

[0019] Figure 2 This is a schematic diagram of the left side structure of this utility model;

[0020] Figure 3 This is a front sectional view of the present invention.

[0021] Figure 4 This is a front structural diagram of the present invention;

[0022] Figure 5 This utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Fixture base; 101. Mounting hole; 2. Upper base; 201. Limiting body; 202. Screw hole one; 3. Lower base; 301. Screw hole two; 4. Air pump; 5. Dust filter; 6. Drive motor one; 601. Fixing ring; 602. Fixing bolt; 7. Drive motor two; 701. Lead screw; 8. Connecting rod mounting plate; 9. Connecting rod one; 10. Connecting rod two; 1001. Rotating shaft one; 11. Connecting rod shaft; 12. Telescopic rod; 13. Fixing plate; 1301. Rotating shaft two; 1302. Rubber ring; 1303. Flexible hose; 14. Fixture cover; 1401. Screw hole three; 1402. Limiting groove; 1403. Limiting post; 15. Bolt. Detailed Implementation

[0025] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 the utility model.

[0027] Please see Figure 1-5 As shown, this utility model is a fixture for CNC machine tools, including a fixture base 1. The fixture base 1 has a mounting hole 101 located at its center. A drive motor 6 is positioned directly below the fixture base 1, and the output shaft of the drive motor 6 is installed within the mounting hole 101. A fixing ring 601 is provided on the drive motor 6, and the fixing ring 601 is welded to the outer shell of the drive motor 6. Several fixing bolts 602 are evenly arranged on the fixing ring 601. The fixture is fixed to the CNC machine tool through the cooperation of the fixing ring 601 and the fixing bolts 602 on the drive motor 6. The fixture is then electrically connected to the CNC machine tool to synchronize with it. During workpiece processing, the fixture can rotate the workpiece via the drive motor 6 under the fixture base 1, allowing for multi-directional adjustment of the workpiece during CNC machine tool processing, thus saving time and improving work efficiency.

[0028] In one embodiment, for the above-mentioned fixture for a CNC machine tool, the fixture base 1 includes an upper base 2 and a lower base 3. The upper base 2 is provided with a limiting body 201, which is coaxial with the upper base 2. The upper base 2 is provided with a plurality of screw holes 202, which are located outside the limiting body 201. The lower base 3 is provided with screw holes 301, which correspond to the screw holes 202.

[0029] In one embodiment, for the aforementioned CNC machine tool fixture, an air pump 4 is installed on the lower base 3, the air pump 4 is located between the upper base 2 and the lower base 3, a dust filter 5 is provided between the upper base 2 and the lower base 3, and the air pump 4 is enclosed within the dust filter 5. A second drive motor 7 is installed on the upper base 2, and the second drive motor 7 is located in the middle of the upper base 2. The dust filter 5 between the upper base 2 and the lower base 3 can prevent dust, debris, etc. from entering the air pump 4, thus avoiding damage to the air pump 4 due to the entry of dust, debris, etc.

[0030] In one embodiment, for the above-mentioned CNC machine tool fixture, the output shaft of the second drive motor 7 is connected to one end of the lead screw 701, and a connecting rod mounting plate 8 is mounted on the lead screw 701. The connecting rod mounting plate 8 is provided with a thread that matches the lead screw 701. The second drive motor 7 drives the lead screw 701 to extend or lower the connecting rod mounting plate 8 on the lead screw 701 by rotating forward or in reverse, so that the workpiece on the fixture can be adjusted to a suitable machining height during the machining process.

[0031] In one embodiment, for the aforementioned CNC machine tool fixture, a first connecting rod 9 is mounted on the connecting rod mounting plate 8, and a second connecting rod 10 is mounted on the first connecting rod 9. The second connecting rod 10, the first connecting rod 9, and the connecting rod mounting plate 8 are connected by a connecting rod shaft 11. A telescopic rod 12 is mounted on the connecting rod mounting plate 8, and the telescopic rod 12 corresponds to the second connecting rod 10. One end of the telescopic rod 12 is mounted on the second connecting rod 10. A rotating shaft 1001 is installed between the second connecting rod 10 and the telescopic rod 12. The first connecting rod 9 and the second connecting rod 10 form a V-shape. During the process of fixing the workpiece, the telescopic rod 12 on the connecting rod mounting plate 8 begins to extend, causing the included angle between the V-shaped first connecting rod 9 and the second connecting rod 10 to increase. The first connecting rod 9 and the second connecting rod 10 begin to extend and lengthen, causing the fixing plate 13 to support the workpiece.

[0032] In one embodiment, for the above-mentioned CNC machine tool fixture, a fixed plate 13 is installed on the second connecting rod 10. The fixed plate 13 is connected to the second connecting rod 10 via a second rotating shaft 1301. A rubber ring 1302 is provided on one side of the fixed plate 13, and a flexible hose 1303 is installed on the fixed plate 13. The flexible hose 1303 is located inside the rubber ring 1302, and the other end of the flexible hose 1303 is connected to an air pump 4. After the fixed plate 13 is pressed tightly against the inner wall of the workpiece, the air pump 4 extracts the air from the fixed plate 13 pressed tightly against the inner wall of the workpiece through the flexible hose 1303, thereby firmly fixing the workpiece on the fixture. During this process, the rubber ring 1302 on the fixed plate 13 can both seal and protect the workpiece, preventing the workpiece from being damaged during clamping.

[0033] In one embodiment, for the above-mentioned CNC machine tool fixture, a fixture cover 14 is installed on the upper base 2. The fixture cover 14 has a screw hole 3 1401, which corresponds to screw hole 1 202. A limit groove 1402 is provided on the fixture cover 14, which fits with the limit body 201. A limit post 1403 is provided inside the fixture cover 14, and the limit post 1403 is connected to one end of the lead screw 701. The fixture cover 14 can effectively protect the internal components, preventing damage to the components inside the fixture during processing, thereby improving the service life of the fixture.

[0034] In one embodiment, for the above-mentioned fixture for a CNC machine tool, the fixture cover 14, the upper base 2, and the lower base 3 are connected by bolts 15, and the bolts 15 are engaged with screw holes 1-202, 2-301, and 3-1401.

[0035] In one embodiment, for the above-mentioned fixture for a CNC machine tool, the first connecting rod 9, the second connecting rod 10, and the telescopic rod 12 all extend out from the limiting groove 1402.

[0036] In summary, by utilizing the above-mentioned technical solution of this utility model, a fixture for a CNC machine tool is first fixed to the CNC machine tool through the cooperation of the fixing ring 601 and fixing bolt 602 on the drive motor 6. Then, the fixture is electrically connected to the CNC machine tool to enable synchronization. After the fixture is installed, the operator places the workpiece to be processed onto the fixture. The CNC machine tool then controls the fixture to fix the workpiece. First, the drive motor 7 on the upper base 2 starts rotating forward. 7. Drive screw 701 to raise connecting rod mounting plate 8 on screw 701. When connecting rod mounting plate 8 rises to a certain height, drive motor 7 stops driving. When connecting rod mounting plate 8 reaches the appropriate height, telescopic rod 12 on connecting rod mounting plate 8 begins to extend, causing the angle between connecting rod 9 and connecting rod 10 (forming a V-shape) to increase. Connecting rods 9 and 10 extend and lengthen, allowing fixed plate 13 to support the workpiece. When fixed plate 13 is in close contact with the inner wall of the workpiece, telescopic rod 12 stops extending. At the same time, air pump 4 located between upper base 2 and lower base 3... Upon starting work, air pump 4 extracts air from the fixed plate 13, which is tightly attached to the inner wall of the workpiece, through hose 1303, thus firmly fixing the workpiece to the fixture. During this process, the rubber ring 1302 on the fixed plate 13 serves both as a seal and as a protection for the workpiece, preventing damage during clamping. Once the workpiece is securely fixed by the fixture, the CNC machine tool can begin machining it. During machining, the fixture can rotate the workpiece via drive motor 6 under the fixture base 1, allowing the machine tool to better machine the workpiece. When the CNC machine tool needs to perform vertical machining on the workpiece, the drive motor 7 drives the lead screw 701 to extend or lower the connecting rod mounting plate 8 on the lead screw 701 by rotating forward or reverse, thereby controlling the position adjustment of the workpiece in the vertical direction to facilitate the vertical machining of the workpiece by the CNC machine tool. The fixture cover 14 on the upper base 2 can effectively protect the internal components. The dust filter 5 between the upper base 2 and the lower base 3 can prevent dust, debris and other particles from entering the air pump 4, thus avoiding damage to the air pump 4 due to the entry of dust, debris and other particles.

[0037] Through the above technical solution, 1. By providing a drive motor under the fixture plate, the fixture can rotate the workpiece during the workpiece processing. At the same time, through the cooperation between the drive motor, the lead screw, the connecting rod, and the mounting plate, the fixture can make multi-directional adjustments to the workpiece during CNC machine tool processing, thereby saving time and improving work efficiency.

[0038] 2. By providing a fixture cover and dust filter, the components inside the fixture are protected, preventing damage to the components due to dust and debris during processing, thereby improving the service life of the fixture.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixture for a CNC machine tool, characterized in that: The fixture includes a fixture base (1), on which a mounting hole (101) is provided. The mounting hole (101) is located at the center of the fixture base (1). A drive motor (6) is provided directly below the fixture base (1). The output shaft of the drive motor (6) is installed in the mounting hole (101). A fixing ring (601) is provided on the drive motor (6). The fixing ring (601) is welded to the outer shell of the drive motor (6). Several fixing bolts (602) are installed on the fixing ring (601). The fixing bolts (602) are evenly arranged on the fixing ring (601). The fixture base (1) includes an upper base (2) and a lower base (3). The upper base (2) is provided with a limiting body (201). The limiting body (201) is coaxial with the upper base (2). The upper base (2) is provided with a plurality of screw holes (202). The screw holes (202) are located outside the limiting body (201). The lower base (3) is provided with screw holes (301). The screw holes (301) correspond to the screw holes (202). An air pump (4) is installed on the lower base (3). The air pump (4) is located between the upper base (2) and the lower base (3). A dust filter (5) is provided between the upper base (2) and the lower base (3). The air pump (4) is enclosed in the dust filter (5). A second drive motor (7) is installed on the upper base (2). The second drive motor (7) is located in the middle of the upper base (2). The output shaft of the second drive motor (7) is connected to one end of the lead screw (701). A connecting rod mounting plate (8) is installed on the lead screw (701), and the connecting rod mounting plate (8) has a thread that matches the lead screw (701).

2. A fixture for a CNC machine tool according to claim 1, characterized in that, A connecting rod 1 (9) is installed on the connecting rod mounting plate (8), and a connecting rod 2 (10) is installed on the connecting rod 1 (9). The connecting rod 2 (10), the connecting rod 1 (9), and the connecting rod mounting plate (8) are connected by a connecting rod shaft (11). A telescopic rod (12) is installed on the connecting rod mounting plate (8). The telescopic rod (12) corresponds to the connecting rod 2 (10). One end of the telescopic rod (12) is installed on the connecting rod 2 (10). A rotating shaft 1 (1001) is installed between the connecting rod 2 (10) and the telescopic rod (12). The connecting rod 1 (9) and the connecting rod 2 (10) are V-shaped.

3. A fixture for a CNC machine tool according to claim 2, characterized in that, A fixed plate (13) is installed on the second connecting rod (10). The fixed plate (13) is connected to the second connecting rod (10) through the second rotating shaft (1301). A rubber ring (1302) is provided on one side of the fixed plate (13). A hose (1303) is installed on the fixed plate (13). The hose (1303) is located inside the rubber ring (1302). The other end of the hose (1303) is connected to the air pump (4).

4. A fixture for a CNC machine tool according to claim 1, characterized in that, A clamp cover (14) is installed on the upper base (2). The clamp cover (14) has a screw hole three (1401) which corresponds to screw hole one (202). A limit groove (1402) is provided on the clamp cover (14). The limit groove (1402) fits with the limit body (201). A limit post (1403) is provided inside the clamp cover (14). The limit post (1403) is connected to one end of the lead screw (701).

5. A fixture for a CNC machine tool according to claim 4, characterized in that, The clamp cover (14), upper base (2), and lower base (3) are connected by bolts (15), which are fitted with screw holes one (202), two (301), and three (1401).

6. A fixture for a CNC machine tool according to claim 2, characterized in that, The first connecting rod (9), the second connecting rod (10), and the telescopic rod (12) all extend out from the limiting groove (1402).

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