Fixture for milling machine

Abstract

The fixture comprises a base, a positioning seat and a fixing seat, the positioning seat is arranged at the center of the base, a plurality of groups of positioning grooves are formed in the edge of the base, the positioning grooves are circularly distributed along the surface of the base, and the fixing seat is arranged on the surface of the base. The fixing seat is arranged in the positioning groove, the fixing seat comprises a supporting seat, a supporting rod, a compression nut and a compression block, the supporting rod is arranged at the upper end of the supporting seat, the compression block is arranged on the supporting rod, and the compression nut is arranged at the upper end of the supporting rod and located above the compression block. The workpiece is centrally positioned through the positioning seat, and is radially clamped by the pressing block after the edge extends to the support, so that the problem of deviation easily caused by traditional single-point clamping is effectively avoided, and the clamping precision is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of machining, specifically a fixture for a milling machine. Background Technology

[0002] In the field of machining, milling machine fixtures are key components that ensure the accuracy and efficiency of workpiece machining. Their design rationality directly affects the machining quality and production efficiency. Traditional milling machine fixtures have the following shortcomings: On the one hand, most fixtures adopt a single or fixed positioning structure, which is difficult to adapt to the clamping requirements of workpieces of different shapes and sizes, resulting in insufficient workpiece positioning stability and easy displacement during machining, affecting machining accuracy; on the other hand, the clamping mechanism of traditional fixtures is cumbersome to operate, requires the use of external tools for adjustment, and lacks effective protective measures, which can easily cause indentations or damage to the workpiece surface, especially in high-precision machining scenarios where it is difficult to meet quality requirements. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems, thereby providing a fixture for milling machines;

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model provides a fixture for a milling machine.

[0006] The system includes a base, a positioning seat, and a fixing seat. The positioning seat is located at the center of the base, and the base has positioning grooves along its edge. Several groups of positioning grooves are arranged in a circular pattern along the surface of the base. The fixing seat is located within the positioning grooves. The fixing seat includes a support, a support rod, a clamping nut, and a clamping block. The support rod is located at the upper end of the support, the clamping block is located on the support rod, and the clamping nut is located at the upper end of the support rod and above the clamping block. The workpiece to be processed is first placed on the positioning seat for positioning and fixing, with its edge extending onto the support. Rotating the clamping nut downwards causes the clamping block to move downwards, thereby clamping and fixing the edge of the workpiece.

[0007] Optionally, the lower end of the support is provided with a first mounting hole, and the positioning groove is provided with a second mounting hole. The support and the positioning groove are fixed together by bolts through the first mounting hole and the second mounting hole.

[0008] Optionally, the base is provided with positioning holes, and the positioning holes are set in several groups, with the groups of positioning holes being evenly spaced apart. The base is fixedly connected to the milling machine's worktable via bolts through the positioning holes.

[0009] Optionally, the base is provided with lifting bolts, and the lifting bolts are configured in several groups, with the several groups of lifting bolts distributed in a circular pattern along the surface of the base.

[0010] Optionally, the lower surface of the clamping block is provided with a protective layer, which is used to protect the surface of the workpiece.

[0011] Optionally, the first mounting holes are set in several groups, and the second mounting holes are set in a one-to-one correspondence with the first mounting holes. The cross-sections of the first mounting holes and the second mounting holes are both set to a circular structure, or the cross-sections of the first mounting holes and the second mounting holes are both set to a rectangular structure.

[0012] In summary, this utility model has the following beneficial effects:

[0013] The workpiece in this application is centered by a positioning seat, and the edge extends to the support and is radially clamped by a clamping block. This design achieves "point-line" dual positioning, namely the center positioning point plus the edge ring clamping line, which effectively avoids the offset problem that is easy to occur in traditional single-point clamping and significantly improves clamping accuracy. The clamping / loosening can be achieved by rotating the clamping nut. Compared with traditional bolt fastening or manual adjustment fixtures, the operating efficiency is greatly improved. Attached Figure Description

[0014] Figure 1 This is a top view of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the fixed base structure of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1-base, 2-positioning seat, 3-positioning groove, 4-support, 5-support rod, 6-compression nut, 7-compression block, 8-first mounting hole, 9-bolt, 10-positioning hole, 11-lifting bolt. Detailed Implementation

[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Example:

[0019] like Figures 1-2 As shown, this utility model provides a fixture for a milling machine.

[0020] The system includes a base 1, a positioning seat 2, and a fixing seat. The positioning seat 2 is located at the center of the base 1. The base 1 has positioning grooves 3 along its edge. Several groups of positioning grooves 3 are arranged in a circular pattern along the surface of the base 1. The fixing seat is located within the positioning grooves 3. The fixing seat includes a support 4, a support rod 5, a clamping nut 6, and a clamping block 7. The support rod 5 is located at the upper end of the support 4. The clamping block 7 is located on the support rod 5. The clamping nut 6 is located at the upper end of the support rod 5 and is positioned above the clamping block 7. The workpiece to be processed is first placed on the positioning seat 2 for positioning and fixing. Its edge extends to the support 4. The clamping nut 6 is rotated downwards, thereby driving the clamping block 7 downwards, thus clamping and fixing the edge of the workpiece.

[0021] The circularly distributed positioning grooves 3 allow for selection of the optimal clamping position based on the workpiece shape, forming a uniform support force. This avoids the vibration or displacement that is easily caused by traditional single-point fixing, significantly improving processing stability. After the workpiece is pre-positioned on the positioning seat 2, its edge extends to the support 4. Quick clamping can be achieved simply by rotating the clamping nut 6. Compared with traditional fixtures that require multiple steps of adjustment such as manually tightening bolts, clamping efficiency is greatly improved. Furthermore, it can be adapted to workpieces of different diameters or irregular shapes, such as circles and polygons, solving the problem of difficulty in fixing complex contour workpieces with traditional fixtures.

[0022] Optionally, the lower end of the support 4 is provided with a first mounting hole 8, and the positioning groove 3 is provided with a second mounting hole. The support 4 and the positioning groove 3 are fixed together by bolts 9 through the first mounting hole 8 and the second mounting hole.

[0023] Support 4 can be quickly disassembled and replaced with different positioning slots 3, supporting the clamping of workpieces of different specifications with the same fixture, reducing equipment idle rate. The mounting holes of bolt 9 ensure the concentricity of support 4 and positioning slot 3, avoiding skew during clamping, improving repeatability and positioning accuracy. When a single support 4 is damaged, there is no need to replace the entire fixture.

[0024] Optionally, the base 1 is provided with positioning holes 10, and the positioning holes 10 are set in several groups, with the groups of positioning holes 10 being evenly spaced apart. The base 1 is fixedly connected to the milling machine's worktable via the positioning holes 10 and bolts 9.

[0025] Multiple sets of positioning holes 10 distribute the force of bolts 9, avoiding deformation of base 1 due to single-point force, improving the overall rigidity of the fixture, and extending its service life. Positioning holes 10 match the pre-drilled holes of the worktable to achieve "blind installation" and greatly shorten the installation time. It is compatible with the hole layout of different brands of milling machine worktables and improves the versatility of the equipment.

[0026] Optionally, the base 1 is provided with lifting bolts 11, and the lifting bolts 11 are configured in several groups, with the several groups of lifting bolts 11 being distributed in a circle along the surface of the base 1.

[0027] Lifting bolt 11 provides a standard lifting point to avoid deformation or damage caused by uneven force during clamping and handling. Bolt 9 is arranged along the edge of base 1, which does not occupy the processing area and ensures that there is no interference after the workpiece is clamped. The standardized lifting design reduces the risk of manual handling and complies with industrial safety specifications.

[0028] Optionally, a protective layer is provided on the lower surface of the clamping block 7 to protect the surface of the workpiece.

[0029] The protective layer disperses the clamping force, preventing direct metal contact that could cause indentations on the workpiece or damage to the coating.

[0030] Optionally, the first mounting hole 8 is set in several groups, and the second mounting hole is set in a one-to-one correspondence with the first mounting hole 8. The cross-section of the first mounting hole 8 and the second mounting hole is set to a circular structure, or the cross-section of the first mounting hole 8 and the second mounting hole is set to a rectangular structure.

[0031] Supports quick installation of round bolts 9 or strong shear resistance of rectangular bolts 9, adapting to different working conditions. Rectangular holes are compatible with special fasteners such as T-bolts 9, facilitating integration with other equipment, such as quick mold change systems in automated production lines. Users can select bolt 9 types according to inventory, improving the flexibility of use.

[0032] The workpiece in this application is centered by the positioning seat 2, and the edge extends to the support 4 and is radially clamped by the clamping block 7. This design realizes "point-line" dual positioning, namely the center positioning point plus the edge ring clamping line, which effectively avoids the offset problem that is easy to occur in traditional single-point clamping and significantly improves the clamping accuracy. The clamping / loosening can be achieved by rotating the clamping nut 6. Compared with the traditional bolt 9 fastening or manual adjustment fixture, the operation efficiency is greatly improved.

[0033] The support 4 of this application is connected to the base 1 by bolts 9 through the first and second mounting holes, which supports the quick replacement of fixed seats of different specifications according to the workpiece size, realizing the flexible configuration of the fixture. For example, the circular mounting holes allow the support 4 to finely adjust the angle, while the rectangular holes provide rigid fixation to adapt to different processing needs. The circular distribution positioning grooves 3 on the edge of the base 1 can support simultaneous clamping of multiple stations, or the clamping range can be adjusted by increasing or decreasing the number of fixed seats, thus expanding the applicability of the fixture.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixture for a milling machine, characterized in that, The system includes a base, a positioning seat, and a fixing seat. The positioning seat is located at the center of the base, and the base has positioning grooves along its edge. Several groups of positioning grooves are arranged in a circular pattern along the surface of the base. The fixing seat is located within the positioning grooves. The fixing seat includes a support, a support rod, a clamping nut, and a clamping block. The support rod is located at the upper end of the support, the clamping block is located on the support rod, and the clamping nut is located at the upper end of the support rod and above the clamping block. The workpiece to be processed is first placed on the positioning seat for positioning and fixing, with its edge extending onto the support. Rotating the clamping nut downwards causes the clamping block to move downwards, thereby clamping and fixing the edge of the workpiece.

2. A fixture for a milling machine according to claim 1, characterized in that, The lower end of the support has a first mounting hole, and the positioning groove has a second mounting hole. The support and the positioning groove are fixed together by bolts through the first mounting hole and the second mounting hole.

3. A fixture for a milling machine according to claim 1, characterized in that, The base is provided with positioning holes, which are arranged in several groups and are evenly spaced apart. The base is fixedly connected to the milling machine's worktable via bolts through the positioning holes.

4. A fixture for a milling machine according to claim 1, characterized in that, The base is provided with lifting bolts, which are arranged in several groups and distributed in a circular pattern along the surface of the base.

5. A fixture for a milling machine according to claim 1, characterized in that, The lower surface of the clamping block is provided with a protective layer, which is used to protect the surface of the workpiece.

6. A fixture for a milling machine according to claim 2, characterized in that, The first mounting hole is set in several groups, and the second mounting hole is set in a one-to-one correspondence with the first mounting hole. The cross-section of the first mounting hole and the second mounting hole is set as a circular structure, or the cross-section of the first mounting hole and the second mounting hole is set as a rectangular structure.

Images