Precision fixture for lathe rotary parts

Abstract

The application discloses a lathe rotary part precision clamp and relates to the field of lathe machining.The lathe rotary part precision clamp comprises a support jaw frame, a connecting column is arranged in the middle of the support jaw frame, a disc is movably arranged at the lower part of the connecting column, a connecting protrusion is arranged on the disc, a first connecting shaft is arranged on the connecting protrusion, an extension push rod is connected to the connecting protrusion through the first connecting shaft, a second connecting shaft is arranged at the upper end of the extension push rod, a displacement rod is movably connected to the extension push rod through the second connecting shaft, a protruding piece is arranged at one end of the displacement rod, a push rod is arranged at the lower part of the protruding piece, a center rod is arranged at the upper part of the protruding piece, and inner collecting clamps are arranged at the two ends of the center rod.The upper inner collecting clamp can be moved when the center rod slightly rotates around the center rod, the upper end of the inner collecting clamp moves to the inner side, gradually contacts the side surface of the rotary part, the rotary part can be fixed through continuous movement, and the overall fixing efficiency can be improved during use.

Description

Technical Field

[0001] This application relates to the field of machine tool processing, and in particular to precision fixtures for rotary parts of machine tools. Background Technology

[0002] Machine tool processing refers to the process of using a machine tool to ensure the relative movement between the cutting tool and the fixture, while simultaneously machining the workpiece mounted on the fixture. However, this process is not necessarily cutting; it can also be pressure processing, such as knurling or spinning on a lathe.

[0003] Currently, when machining rotary parts, machine tools mostly use bolts or internal supports to fix the fixtures. While bolt fastening can fix rotary parts, it requires tools for installation and disassembly, which is inconvenient and does not improve overall machining efficiency. Utility Model Content

[0004] To address the problem that while bolt fastening can secure rotating parts, it requires tools for installation and disassembly, making it inconvenient and hindering overall processing efficiency, this application provides a precision fixture for rotating machine tool parts.

[0005] The precision fixture for rotary machine tool parts provided in this application adopts the following technical solution:

[0006] The device includes a support claw frame, a connecting column installed in the middle of the support claw frame, a disc movably installed at the lower part of the connecting column, a connecting protrusion installed on the disc, a first connecting shaft installed on the connecting protrusion, an extension push rod connected to the connecting protrusion via the first connecting shaft, a second connecting shaft installed at the upper end of the extension push rod, a displacement rod movably connected to the extension push rod via the second connecting shaft, a protrusion installed at one end of the displacement rod, a push rod installed at the lower part of the protrusion, a center rod installed at the upper part of the protrusion, and inward clamps provided at both ends of the center rod.

[0007] By adopting the above technical solution, the connecting block will drive the central rod to rotate. When the central rod rotates slightly around itself, it can move the upper inward clamp. The upper end of the inward clamp moves inward, which can fix the part.

[0008] Preferably, one end of the support claw frame has an inner groove, and the upper part of the protrusion is located inside the inner groove and can move inside the inner groove.

[0009] By adopting the above technical solution, the displacement rod drives the protrusion to move, and the protrusion drives the push rod to move. When the push rod moves, it can drive the connecting blocks at both ends to move.

[0010] Preferably, the support claw frame has through slots on both sides of the inner groove, the diameter of the through slots is adapted to the diameter of the central rod, and the central rod passes through the interior of the through slots.

[0011] By adopting the above technical solution, the central rod can be restricted by the through groove, allowing the central rod to rotate around itself.

[0012] Preferably, the two ends of the push rod and the center rod are connected by a connecting block, the retractable clamp is located on the connecting block, and the upper part of the retractable clamp has a clamping opening.

[0013] By adopting the above technical solution, when the center rod rotates slightly around itself, the upper inward clamp can move, and the upper end of the inward clamp moves inward, gradually contacting the side of the rotating part to fix the part.

[0014] Preferably, multiple limiting protrusions are installed on the end face of the support claw frame, and the number of limiting protrusions and inward clamps is multiple, arranged in pairs in a circular pattern.

[0015] By adopting the above technical solution, multiple limiting protrusions can restrict the part before the inner clamp fixes the part.

[0016] Preferably, a drive cylinder is connected to the lower part of the disk, the output end of the drive cylinder is connected to the center of the disk, and a protective cover is installed on the outside of the drive cylinder.

[0017] By adopting the above technical solution, the protective sleeve can protect the drive cylinder by pulling the disc downward through the drive cylinder.

[0018] Preferably, the support claw frame is also equipped with three pads, and the pads are provided with a number of protective protrusions.

[0019] By adopting the above technical solution, the lower part of rotating parts can be protected by protective protrusions, thus avoiding damage to the surface of rotating parts.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application uses a displacement rod to drive the protrusion to move, and the protrusion drives the push rod to move. When the push rod moves, it can drive the connecting blocks at both ends to move. At this time, the connecting blocks will drive the central rod to rotate. When the central rod rotates slightly around itself, it can move the upper inward clamp. The upper end of the inward clamp moves inward and gradually contacts the side of the rotating part. Through continuous movement, the rotating part can be fixed, which can improve the overall fixing efficiency during use.

[0022] 2. This application can protect the lower part of rotating parts by means of protective protrusions, so as to avoid damage to the surface of rotating parts. Multiple limiting protrusions can restrict the parts before the internal clamps fix the parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the precision fixture for rotary machine tool parts according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the lower structure, which is the main feature of the embodiments of this application.

[0025] Figure 3 This is a schematic diagram illustrating the assembly structure of the support claw frame, which is the main feature of this application embodiment.

[0026] Figure 4 This is a schematic diagram illustrating the enlarged structure of part A, which is the main embodiment of this application.

[0027] Reference numerals: 1. Support claw frame; 2. Connecting column; 3. Disc; 4. Connecting protrusion; 5. First connecting shaft; 6. Extension push rod; 7. Second connecting shaft; 8. Displacement rod; 9. Groove; 10. Protrusion; 11. Push rod; 12. Inner groove; 13. Connecting block; 14. Through groove; 15. Center rod; 16. Inner clamp; 17. Clamping jaw; 18. Limiting protrusion; 19. Pad; 20. Protective protrusion; 21. Drive cylinder; 22. Protective sleeve. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0029] This application discloses a precision fixture for rotary machine tool parts, including a support jaw 1. A connecting column 2 is installed in the middle of the support jaw 1. A disc 3 is movably installed at the lower part of the connecting column 2. The disc 3 drives a connecting protrusion 4 to move. The connecting protrusion 4 is installed on the upper part of the disc 3. A first connecting shaft 5 is installed on the connecting protrusion 4. The connecting protrusion 4 is connected to an extension push rod 6 through the first connecting shaft 5. A second connecting shaft 7 is installed at the upper end of the extension push rod 6. The extension push rod 6 is movably connected to a displacement rod 8 through the second connecting shaft 7. A protrusion 10 is installed at one end, a push rod 11 is installed at the lower part of the protrusion 10, and a center rod 15 is installed at the upper part of the protrusion 10. Inward clamps 16 are provided at both ends of the center rod 15. The lower surface of the support claw frame 1 is provided with a slot 9 at the upper part of the displacement rod 8. The displacement rod 8 can enter the interior of the slot 9. When the push rod 11 moves, it can drive the connecting blocks 13 at both ends to move. At this time, the connecting blocks 13 will drive the center rod 15 to rotate. When the center rod 15 rotates slightly around itself, it can make the inward clamps 16 at the upper part move.

[0030] Please refer to Figures 1 to 4 The support claw 1 has an inner groove 12 at one end. The upper part of the protrusion 10 is located inside the inner groove 12 and can move inside the inner groove 12. The support claw 1 has through slots 14 on both sides of the inner groove 12. The diameter of the through slots 14 is matched with the diameter of the central rod 15. The central rod 15 passes through the inside of the through slots 14. The two ends of the push rod 11 and the central rod 15 are connected by a connecting block 13. The retractable clamp 16 is located on the connecting block 13. The upper part of the retractable clamp 16 has a clamping opening 17. The connecting block 13 will drive the central rod 15 to rotate. When the central rod 15 rotates slightly around itself, it can move the upper retractable clamp 16. The upper end of the retractable clamp 16 moves inward and gradually contacts the side of the rotating part. Through continuous movement, the rotating part can be fixed.

[0031] Please refer to Figures 1 to 3 Multiple limiting protrusions 18 are installed on the end face of the support claw 1. There are multiple limiting protrusions 18 and multiple retractable clamps 16, which are arranged in pairs in a circle. The multiple limiting protrusions 18 can restrict the part before the retractable clamps 16 fix the part.

[0032] Please refer to Figure 2 A drive cylinder 21 is connected to the lower part of the disc 3. The output end of the drive cylinder 21 is connected to the center of the disc 3. A protective cover 22 is installed on the outside of the drive cylinder 21. The disc 3 is pulled down by the drive cylinder 21, and the protective cover 22 can protect the drive cylinder 21.

[0033] Please refer to Figure 1 and Figure 3 The support claw 1 is also equipped with three pads 19, each pad 19 having several protective protrusions 20. When a rotating part is placed on the support claw 1, its bottom contacts the pad 19. The protective protrusions 20 can protect the bottom of the rotating part, preventing damage to its surface.

[0034] The implementation principle of the precision fixture for rotary machine tool parts in this embodiment is as follows: First, the rotary part is placed on the support jaw 1, with its bottom in contact with the pad 19. The lower part of the rotary part can be protected by the protective protrusion 20 to avoid damage to the surface of the rotary part. Then, the drive cylinder 21 is started, which pulls the disc 3 downward. The disc 3 drives the extension push rod 6 to move downward synchronously through the connecting protrusion 4 and the first connecting shaft 5. At this time, the extension push rod 6 pulls one end of the displacement rod 8 downward through the second connecting shaft 7. At this time, the displacement rod 8 drives the protrusion 10 to move, and the protrusion 10 drives the push rod 11 to move. When the push rod 11 moves, it can drive the connecting blocks 13 at both ends to move. At this time, the connecting blocks 13 will drive the center rod 15 to rotate. When the center rod 15 rotates slightly around itself, it can make the upper inward clamp 16 move. The upper end of the inward clamp 16 moves inward and gradually contacts the side of the rotary part. Through continuous movement, the rotary part can be fixed.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precision fixture for rotary parts of machine tools, characterized in that: The system includes a support claw frame (1), a connecting column (2) installed in the middle of the support claw frame (1), a disc (3) movably installed at the lower part of the connecting column (2), a connecting protrusion (4) installed on the disc (3), a first connecting shaft (5) installed on the connecting protrusion (4), an extension push rod (6) connected to the connecting protrusion (4) via the first connecting shaft (5), a second connecting shaft (7) installed at the upper end of the extension push rod (6), and the extension push rod (6) connected to the first connecting shaft (5) via the second connecting shaft (7). The two connecting shafts (7) are movably connected to a displacement rod (8). A protrusion (10) is installed at one end of the displacement rod (8). A push rod (11) is installed at the lower part of the protrusion (10). A center rod (15) is installed at the upper part of the protrusion (10). An inward clamp (16) is provided at both ends of the center rod (15). A slot (9) is opened on the lower surface of the support claw frame (1) above the displacement rod (8). The displacement rod (8) can enter the interior of the slot (9).

2. The precision fixture for rotary machine tool parts according to claim 1, characterized in that: One end of the support claw (1) is provided with an inner groove (12), and the upper part of the protrusion (10) is located inside the inner groove (12) and can move inside the inner groove (12).

3. The precision fixture for rotary machine tool parts according to claim 2, characterized in that: The support claw frame (1) has through slots (14) on both sides of the inner groove (12). The diameter of the through slots (14) is matched with the diameter of the central rod (15). The central rod (15) passes through the inside of the through slots (14).

4. The precision fixture for rotary machine tool parts according to claim 3, characterized in that: The two ends of the push rod (11) and the center rod (15) are connected by a connecting block (13). The retractable clamp (16) is located on the connecting block (13), and a clamping opening (17) is provided on the upper part of the retractable clamp (16).

5. The precision fixture for rotary machine tool parts according to claim 1, characterized in that: The end face of the support claw frame (1) is equipped with multiple limiting protrusions (18), and the number of the limiting protrusions (18) and the inward clamps (16) are multiple, arranged in pairs in a circular pattern.

6. The precision fixture for rotary machine tool parts according to claim 1, characterized in that: A drive cylinder (21) is connected to the lower part of the disk (3). The output end of the drive cylinder (21) is connected to the center of the disk (3). A protective cover (22) is installed on the outside of the drive cylinder (21).

7. The precision fixture for rotary machine tool parts according to claim 1, characterized in that: The support claw frame (1) is also equipped with three pads (19), and the pads (19) are provided with a number of protective protrusions (20).

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