Numerical control lathe machining clamp

Abstract

The utility model relates to the technical field of lathe clamps, in particular to a numerical control lathe machining clamp which comprises a main body, a clamping assembly is installed on the surface of the main body and comprises a clamping jaw, a fixing block is fixedly connected to the side surface of the clamping jaw, a fixing hole is formed in the upper surface of the fixing block, and a copper sheet is arranged below the clamping jaw. Connecting blocks are fixedly connected to the side edges of the copper sheets, connecting holes are formed in the upper surfaces of the connecting blocks, bolts are in threaded connection with the interiors of the fixing holes, the lower ends of the bolts are in threaded connection with the interiors of the connecting holes, and limiting blocks are fixedly connected to the surfaces of the connecting blocks. According to the utility model, the copper sheet is tightly attached to the clamping jaw, so that parts can be quickly clamped and fixed and the surfaces of the parts are protected during large-batch processing, time and labor are saved, the processing efficiency is improved, and the clamp is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe fixtures, in particular to a fixture for numerical control lathe machining. Background Technique

[0002] The numerical control lathe is one of the numerically controlled machine tools that are currently widely used. It is mainly used for the cutting machining of the inner and outer cylindrical surfaces of shaft parts or disc parts, the inner and outer conical surfaces with any cone angle, the complex revolving inner and outer curved surfaces, and the cylindrical and conical threads, etc., and can perform grooving, drilling, reaming, boring, etc. When the numerical control lathe is machining, a fixture is needed to clamp and fix the parts.

[0003] In the current existing technology, since during machining, some parts have different physical and chemical properties, these properties will affect the machining accuracy of the parts. Therefore, copper sheets are usually wrapped on the surface of the parts before clamping to protect the parts. However, in the mass production of numerical control lathes, wrapping copper sheets on each part will make the part machining process cumbersome and complex, time-consuming and laborious, and not convenient for the use of the fixture. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a fixture for numerical control lathe machining is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A fixture for numerical control lathe machining, including a main body, a clamping assembly is installed on the surface of the main body, the clamping assembly includes a claw, a fixed block is fixedly connected to the side surface of the claw, a fixing hole is opened on the upper surface of the fixed block, a copper sheet is arranged below the claw, a connecting block is fixedly connected to the side of the copper sheet, a connecting hole is opened on the upper surface of the connecting block, a bolt is threadedly connected inside the fixing hole, the lower end of the bolt is threadedly connected inside the connecting hole, and a limiting block is fixedly connected to the surface of the connecting block.

[0006] As a further description of the above technical solution:

[0007] The number of the clamping assemblies is three, and the three clamping assemblies are arranged in a circumferential array along the center of the main body.

[0008] As a further description of the above technical solution:

[0009] A central hole is opened on the surface of the main body, and the center of the central hole coincides with the center of the main body.

[0010] As a further description of the above technical solution:

[0011] An activity groove is opened on the surface of the main body, a sliding groove is opened on the side surface of the claw, and the outer surface of the claw is movably connected to the inside of the activity groove.

[0012] As a further description of the above technical solution:

[0013] The side surface of the chuck is provided with scale lines, and the number of the scale lines is multiple.

[0014] As a further description of the above technical solution:

[0015] A rotating block is movably connected inside the main body, and a square hole is opened on the upper surface of the rotating block.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, for this numerical control lathe processing fixture, through the clamping assembly, when it is necessary to protect the part, one side bolt is threadedly connected with the fixing hole and passes through the lower part, so that it corresponds to the connecting hole on the connecting block and is threadedly connected. Subsequently, the upper surface of the copper sheet is in contact with the lower surface of the chuck, and the other side connecting block is located below the other fixing block. Similarly, the bolt is sequentially threadedly connected with the fixing hole and the connecting hole, so that the copper sheet is tightly attached to the chuck. Compared with the current existing technology, since during processing, some parts have different physical and chemical properties, these properties will affect the processing accuracy of the parts. Therefore, usually, a copper sheet is wrapped on the surface of the parts before clamping to protect the parts. However, in the mass processing of numerical control lathes, wrapping copper sheets for each part will make the part processing process cumbersome and complex, time-consuming and laborious, and not convenient for the use of the fixture. For this numerical control lathe processing fixture, the copper sheet is tightly attached to the chuck, so that during mass processing, the parts can be quickly clamped and fixed and the surface of the parts can be protected, saving time and labor, improving the processing efficiency, and facilitating the use of the fixture.

[0018] It can not only connect the copper sheet with the chuck, but also adjust the connection depth of the bolt and the connecting block at any time, so as to adjust the tightness of the fit between the copper sheet and the chuck, facilitate the long-term use of the copper sheet, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the first perspective of the utility model;

[0020] Figure 2 is the overall structural schematic diagram of the second perspective of the utility model;

[0021] Figure 3 is the partial structural sectional view of the utility model;

[0022] Figure 4 is Figure 3 the enlarged view of the structure at A in

[0023] Legend description:

[0024] 1. Main body; 2. Clamping component; 201. Claw; 202. Fixed block; 203. Fixed hole; 204. Copper sheet; 205. Connecting block; 206. Connecting hole; 207. Bolt; 208. Limiting block; 3. Central hole; 4. Moving slot; 5. Sliding slot; 6. Scale line; 7. Rotating block; 8. Square hole. Detailed implementation mode

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further elaborates on this application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0026] Refer to Figures 1-4 , a numerical control lathe processing fixture provided by the present utility model: includes a main body 1, a clamping component 2 is installed on the surface of the main body 1, the clamping component 2 includes a claw 201, a stepped groove is provided on the surface of the claw 201, a fixed block 202 is fixedly connected to the side surface of the claw 201, a fixed hole 203 is provided on the upper surface of the fixed block 202, a copper sheet 204 is arranged below the claw 201, the copper sheet 204 can adapt to the clamping force when the bolt 207 is connected to the connecting block 205 and fit more closely with the claw 201, causing a certain deformation of the copper sheet 204 to adapt to the outer shape of the lower end of the claw 201 for better clamping. A connecting block 205 is fixedly connected to the side of the copper sheet 204, a connecting hole 206 is provided on the upper surface of the connecting block 205, a bolt 207 is threadedly connected inside the fixed hole 203, the lower end of the bolt 207 is threadedly connected inside the connecting hole 206, and a limiting block 208 is fixedly connected to the surface of the connecting block 205.

[0027] The number of the clamping components 2 is three, and the three clamping components 2 are arranged in a circumferential array along the center of the main body 1. Inside the same clamping component 2, the number of the fixed block 202, the fixed hole 203, the connecting block 205, the connecting hole 206 and the bolt 207 is four, and they are divided into two groups. The four connecting blocks 205 are divided into two groups, and have different lengths, respectively adapting to the heights of the two stepped grooves of the claw 201;

[0028] When the part needs to be protected, thread one side of the bolt 207 with the fixing hole 203 and pass through the lower part, making it correspond to the connecting hole 206 on the connecting block 205 and thread-connecting them. Subsequently, make the upper surface of the copper sheet 204 contact the lower surface of the claw 201, so that the other connecting block 205 is located below the other fixing block 202. Similarly, thread the bolt 207 with the fixing hole 203 and the connecting hole 206 in sequence, making the copper sheet 204 closely adhere to the claw 201. Making the copper sheet 204 closely adhere to the claw 201 enables rapid clamping and fixing of the part and protection of the part surface during mass production, saving time and effort, improving processing efficiency, and facilitating the use of the fixture. Connecting the copper sheet 204 and the claw 201 can also adjust the connection depth of the bolt 207 and the connecting block 205 at any time, thereby adjusting the tightness of the fit between the copper sheet 204 and the claw 201, facilitating the long-term use of the copper sheet 204 and extending its service life.

[0029] As Figure 1 shown, a central hole 3 is provided on the surface of the main body 1, and the center of the central hole 3 coincides with the center of the main body 1. Through the central hole 3, the part can be extended into the main body 1 for easy clamping.

[0030] As Figure 1 shown, a movable groove 4 is provided on the surface of the main body 1, and a sliding groove 5 is provided on the side surface of the claw 201. The outer surface of the claw 201 is movably connected to the inside of the movable groove 4, and the claw 201 can move along the movable groove 4 to achieve clamping or loosening.

[0031] As Figure 1 shown, a scale line 6 is provided on the side surface of the claw 201, and the number of scale lines 6 is multiple. Through the scale line 6, the moving distance of the claw 201 can be observed, facilitating the observation of whether each claw 201 has moved in place and avoiding inaccurate clamping.

[0032] As Figure 2 shown, a rotating block 7 is movably connected inside the main body 1. A square hole 8 is provided on the upper surface of the rotating block 7. A threaded disk is provided inside the main body 1. Teeth are provided on the back surface of the threaded disk, and the teeth are meshed with the rotating block 7. The front surface of the threaded disk is helically connected to the claw 201. When the rotating block 7 rotates, it drives the threaded disk to rotate, causing the claw connected to it helically to move. After the clamping assembly 2 is installed, extend the part into the main body 1 to an appropriate depth. Insert a wrench into the square hole 8 to rotate the rotating block 7, thereby controlling the claw 201 to approach the part and clamping the part to enable processing of the part.

[0033] Working principle: When it is necessary to protect the parts, thread one side of the bolt 207 with the fixing hole 203 and pass through the lower part, so that it corresponds to the connection hole 206 on the connection block 205 and is thread-connected. Subsequently, make the upper surface of the copper sheet 204 contact with the lower surface of the claw 201, so that the other side connection block 205 is located below the other fixing block 202. Similarly, thread the bolt 207 with the fixing hole 203 and the connection hole 206 in sequence, so that the copper sheet 204 closely adheres to the claw 201.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A CNC lathe machining fixture, comprising a main body (1), characterized in that: A clamping assembly (2) is installed on the surface of the main body (1), the clamping assembly (2) comprising a clamping claw (201), a fixing block (202) being fixedly connected to the side surface of the clamping claw (201), a fixing hole (203) being provided on the upper surface of the fixing block (202), a copper sheet (204) being arranged below the clamping claw (201), a connecting block (205) being fixedly connected to the side of the copper sheet (204), a connecting hole (206) being provided on the upper surface of the connecting block (205), a bolt (207) being connected to the internal thread of the fixing hole (203), the lower end of the bolt (207) being connected to the internal thread of the connecting hole (206), and a limiting block (208) being fixedly connected to the surface of the connecting block (205).

2. A CNC lathe machining fixture according to claim 1, characterized in that: The number of the clamping assemblies (2) is three, and the three clamping assemblies (2) are arranged in a circular array along the center of the main body (1).

3. The CNC lathe machining fixture according to claim 1, characterized in that: A central hole (3) is provided on the surface of the main body (1), and the center of the central hole (3) coincides with the center of the main body (1).

4. The CNC lathe machining fixture according to claim 3, characterized in that: A movable groove (4) is provided on the surface of the main body (1), a sliding groove (5) is provided on the side surface of the clamping claw (201), and the outer surface of the clamping claw (201) is movably connected to the inside of the movable groove (4).

5. The CNC lathe machining fixture according to claim 1, characterized in that: The side surface of the claw (201) is provided with scale lines (6), and the number of the scale lines (6) is multiple.

6. The CNC lathe machining fixture according to claim 4, characterized in that: A rotating block (7) is movably connected inside the main body (1), and a square hole (8) is provided on the upper surface of the rotating block (7).

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