Special clamp for square groove milling of automobile shaft parts

Abstract

The utility model belongs to the field of special fixtures, particularly relates to a special fixture for milling a square groove of an automobile shaft part, and aims to solve the problem that the machining efficiency is low due to the fact that a secondary clamping and step-by-step machining mode needs to be adopted in the prior art, the following scheme is provided: the special fixture comprises a machine tool, the shaft part is arranged in the machine tool, and a supporting plate is fixedly arranged at the top of the machine tool; the shaft part is located between the supporting plate and the machine tool. The clamping assembly is located on the machine tool, the bottom end of the shaft part can be inserted into the clamping assembly, and the shaft part can be fixed through the clamping assembly; according to the special clamp for square groove milling of the automobile shaft parts, through the unique design and functions of the special clamp, stable clamping and precise milling of workpieces are achieved, the machining precision and efficiency are improved, the operation difficulty is reduced, the machining cost is reduced, and the machining efficiency is improved. And powerful technical support is provided for manufacturing of automobile shaft parts.

Description

Technical Field

[0001] The utility model relates to the technical field of special clamps, in particular to a special clamp for milling square grooves of automobile shaft parts. Background Art

[0002] A fixture is a device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a clamp. In the mechanical manufacturing process, different fixtures are set for different processing objects to achieve a better clamping effect.

[0003] The existing special fixtures for milling square grooves of automobile shaft parts still have some shortcomings in actual use:

[0004] Under the existing technology, when processing symmetrical square grooves of automobile shaft parts, secondary clamping and step-by-step processing are required, and the processing efficiency is low. Utility Model Content

[0005] The utility model aims to solve the disadvantages of the prior art that secondary clamping and step-by-step processing are required and the processing efficiency is low, and a special clamp for milling square grooves of automobile shaft parts is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A special fixture for milling square grooves of automobile shaft parts comprises a machine tool, in which shaft parts are arranged, a support plate is fixedly installed on the top of the machine tool, and the shaft parts are located between the support plate and the machine tool; it also comprises a clamping assembly, and the clamping assembly is located on the machine tool, the bottom end of the shaft parts can be inserted into the clamping assembly, and can be fixed by the clamping assembly; a moving block is arranged in the support plate, a lower pressure cover is arranged at the bottom of the moving block, and the bottom of the lower pressure cover can cover the top of the shaft parts to press down and clamp the top of the shaft parts.

[0008] In one possible design, a cylinder is fixedly connected to the top of the movable table in the machine tool, and a loading table is fixedly installed on the top of the movable table in the machine tool. A loading groove is provided in the loading table, and a clamp is slidably connected to the loading table, and the clamp can extend into the loading groove. The output shaft of the cylinder slides through the loading table and is fixedly connected to one side of the clamp. The push of the cylinder output shaft can drive the clamp and the inner wall of the loading groove to cooperate with each other to clamp the shaft parts.

[0009] In a possible design, a screw rod is passed through the internal thread of the moving block, and the bottom end of the screw rod is rotatably connected to the top end of the lower pressure cover, and the lower pressure cover can be driven to move up and down on the top end of the shaft part through the rotation of the screw rod thread, and a rotating handle is fixedly connected to the top of the rotating handle, and a wrapping sleeve is fixedly connected to the bottom of the rotating handle, and the wrapping sleeve is sleeved on the outer wall of the screw rod, and a through groove is provided in the moving block, and the wrapping sleeve slides into the through groove.

[0010] In a possible design, a first movable frame is slidably connected in the support plate, a second movable frame is arranged in the support plate, and the first movable frame and the second movable frame are placed crosswise up and down in the support plate.

[0011] In a possible design, the left and right sides of the moving block are fixedly connected to the second moving bars, the front and rear sides of the moving block are fixedly connected to the first moving bars, and the two second moving bars are slidably connected in the second moving frame, and the two first moving bars are slidably connected in the first moving frame.

[0012] In a possible design, a tool holder is provided in the machine tool, and the two ends of the tool holder are respectively limited by clamps and ejector pins, and two milling cutters are fixedly mounted on the outer wall of the tool holder, and the radii of the two milling cutters are greater than the diameter of the shaft parts.

[0013] In the present application, the clamping assembly is the core part of the fixture, which is located on the machine tool and can fix shaft parts. After the shaft parts are placed in the fixture, the fixture uses the output shaft of the cylinder to push the clamp to slide in the receiving groove. Through the cooperation between one side of the clamp and the inner wall of the receiving groove, the bottom end of the shaft parts can be stably clamped to prevent shaking or movement during the milling process. Secondly, a moving block is provided in the support plate, and a lower pressure cover is provided at the bottom of the moving block, which can press down and clamp the top of the shaft parts. In this way, it is also fixed in the vertical direction, further enhancing its stability. In addition, when the shaft parts When the parts need to be moved, the moving block at the top of the shaft parts can slide in the first moving frame through the two first moving bars, and slide in the second moving frame through the two second moving bars. At the same time, according to the needs of movement, the first moving frame and the second moving frame can also slide in the support plate, so that the moving block is moved to the required position to ensure stability during the milling process. At the same time, a milling cutter is provided in the machine tool, and two milling cutters are provided on the outer wall fixed sleeve of the milling cutter. The radius of the two milling cutters is greater than the diameter of the shaft parts, so that during the milling process, the milling cutter can completely cover the milling area to achieve efficient and precise milling.

[0014] Beneficial effects:

[0015] In the utility model, the special fixture for milling square grooves of automobile shaft parts is designed to take into account the multi-directional fixing requirements of the workpiece. The pressing force and position of the lower pressure cover on the top of the workpiece can be accurately adjusted by rotating the screw thread in the moving block, ensuring that workpieces of different sizes can be stably clamped. At the same time, the sliding structure of the first moving frame and the second moving frame in the support plate, as well as the cooperation of the second moving bar and the first moving bar, enable the fixture to adapt to a wider range of workpiece types, thereby improving the flexibility and versatility of the fixture.

[0016] In the utility model, the special fixture for milling square grooves of automobile shaft parts is used, and the clamping assembly fixes the workpiece. The precise design and coordinated work of the clamping assembly ensure the stability of the workpiece during the processing, and effectively prevent the workpiece from shaking or moving during the milling process. At the same time, the milling cutter is fixed with two milling cutters on it, which can achieve the effect of fixing the shaft parts once and milling them once, thereby greatly improving the processing accuracy and efficiency;

[0017] In the utility model, the special fixture for milling square grooves of automobile shaft parts realizes stable clamping and precise milling of workpieces through its unique design and function, improves processing accuracy and efficiency, reduces operation difficulty, and provides strong technical support for the manufacture of automobile shaft parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the special fixture for milling square grooves of automobile shaft parts proposed by the utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of a special fixture loading platform for milling square grooves of automobile shaft parts proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the support plate of the special fixture for milling square grooves of automobile shaft parts proposed by the utility model;

[0021] Figure 4 The utility model discloses an exploded cross-sectional structural diagram of a movable block of a special fixture for milling square grooves of automobile shaft parts.

[0022] In the figure: 1. machine tool; 2. support plate; 3. shaft parts; 4. cylinder; 5. loading table; 6. loading slot; 7. clamping plate; 8. first moving frame; 9. second moving frame; 10. moving block; 11. first moving bar; 12. second moving bar; 13. turning handle; 14. lower pressure cover; 15. through slot; 16. wrapping sleeve; 17. screw; 18. milling cutter. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] Reference Figures 1 to 4 A special fixture for milling square grooves of automobile shaft parts includes: a machine tool 1, a shaft part 3 is arranged in the machine tool 1, a support plate 2 is fixedly installed on the top of the machine tool 1, and the shaft part 3 is located between the support plate 2 and the machine tool 1; it also includes a clamping assembly, and the clamping assembly is located on the machine tool 1, the bottom end of the shaft part 3 can be inserted into the clamping assembly, and it can be fixed by the clamping assembly; a moving block 10 is arranged in the support plate 2, and a lower pressure cover 14 is arranged at the bottom of the moving block 10, and the bottom of the lower pressure cover 14 can cover the top of the shaft part 3, and the top of the shaft part 3 is pressed down and clamped. A support plate 2 is fixedly installed on the top of the machine tool 1, and the support plate 2 is kept parallel to the machine tool 1. The shaft parts 3 are placed in the machine tool 1 and located between the support plate 2 and the machine tool 1. The clamping assembly is located on the machine tool 1, and its structure allows the bottom end of the shaft parts 3 to be inserted therein. The shaft parts 3 are fixed by the clamping force of the clamping assembly. This fixing method should be stable and reliable to ensure that the shaft parts 3 will not move or shake during the subsequent processing. A moving block 10 is set in the support plate 2, and a lower pressure cover 14 is provided at the bottom of the moving block 10. The bottom of the lower pressure cover 14 can cover the top of the shaft parts 3. The downward pressure of the lower pressure cover 14 is used to clamp the top of the shaft parts 3. This clamping method can increase the stability of the shaft parts 3 during the processing.

[0026] Reference Figure 2 , a cylinder 4 is fixedly connected to the top of the moving table in the machine tool 1, a loading table 5 is fixedly installed on the top of the moving table in the machine tool 1, a loading groove 6 is arranged in the loading table 5, a clamping plate 7 is slidably connected in the loading table 5, and the clamping plate 7 can extend into the loading groove 6, the output shaft of the cylinder 4 slides through the loading table 5 and is fixedly connected to one side of the clamping plate 7, and the clamping plate 7 can be driven by the push of the output shaft of the cylinder 4 to match the inner wall of the loading groove 6 to clamp the shaft parts 3. A cylinder 4 is fixedly connected to the top of the moving table in the machine tool 1, and the output shaft of the cylinder 4 is fixedly connected to one side of the clamping plate 7 in the loading table 5. When the cylinder 4 is working, its output shaft will push the clamping plate 7 to move into the loading groove 6, and match the inner wall of the loading groove 6 to further clamp the shaft parts 3. This clamping method is fast and convenient, and improves the processing efficiency.

[0027] Reference Figure 3 and Figure 4, the moving block 10 has a screw rod 17 inserted through the internal thread, and the bottom end of the screw rod 17 is rotatably connected to the top end of the lower pressure cover 14. The screw rod 17 can be driven to move up and down on the top end of the shaft part 3 by rotating the screw rod 17. The top of the screw rod 17 is fixedly connected to the rotating handle 13, and the bottom of the rotating handle 13 is fixedly connected to the wrapping sleeve 16, and the wrapping sleeve 16 is sleeved on the outer wall of the screw rod 17. A through groove 15 is provided in the moving block 10, and the wrapping sleeve 16 slides through the through groove 15. In order to realize the up and down movement of the lower pressure cover 14, we have a screw rod 17 inserted through the internal thread of the moving block 10, and the bottom end of the screw rod 17 is rotatably connected to the top end of the lower pressure cover 14. By rotating the screw rod 17, the lower pressure cover 14 can be driven to move up and down on the top end of the shaft part 3. In order to facilitate operation, the top of the screw rod 17 is fixedly connected to the rotating handle 13, and the bottom of the rotating handle 13 is fixedly connected to the wrapping sleeve 16, and the wrapping sleeve 16 is sleeved on the outer wall of the screw rod 17 to increase the stability and comfort of rotation.

[0028] The present application can be used in the field of special clamps, and can also be used in other fields applicable to the present application.

[0029] Example 2

[0030] refer to Figure 3 , improved on the basis of the first embodiment: a special fixture for milling square grooves of automobile shaft parts, which is applied to the field of special fixtures, a first moving frame 8 is slidably connected in the support plate 2, a second moving frame 9 is provided in the support plate 2, and the first moving frame 8 and the second moving frame 9 are placed crosswise up and down in the support plate 2. The first moving frame 8 and the second moving frame 9 are slidably connected in the support plate 2, and the two are placed crosswise up and down in the support plate 2, which can facilitate the movement of the first moving frame 8 and the second moving frame 9.

[0031] refer to Figure 3 The left and right sides of the moving block 10 are fixedly connected with the second moving bars 12, the front and rear sides of the moving block 10 are fixedly connected with the first moving bars 11, and the two second moving bars 12 are slidably connected in the second moving frame 9, and the two first moving bars 11 are slidably connected in the first moving frame 8. The second moving bars 12 are fixedly connected on the left and right sides of the moving block 10, and the first moving bars 11 are fixedly connected on the front and rear sides. By sliding the second moving bars 12 in the first moving frame 8 and the second moving bars 12 in the second moving frame 9, the moving block 10 can be limited in the first moving frame 8 and the second moving frame 9.

[0032] refer to Figure 1The machine tool 1 is provided with a tool holder, and the two ends of the tool holder are respectively limited by a clamp and an ejector pin, and the outer wall of the tool holder is provided with two milling cutters 18, and the radius of the two milling cutters 18 is greater than the diameter of the shaft part 3. The machine tool 1 is provided with a tool holder, and the two ends of the tool holder are respectively limited by a clamp and an ejector pin, so as to ensure the stability of the tool holder. The outer wall of the tool holder is provided with two milling cutters 18, and the radius of the two milling cutters 18 is greater than the diameter of the shaft part 3. When the milling cutter 18 rotates, the shaft part 3 can be milled to form the required square groove.

[0033] However, as is well known to those skilled in the art, the working principle and wiring method of the cylinder 4 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Special fixture for milling square grooves of automobile shaft parts, characterized by: include: A machine tool (1), wherein a shaft-type part (3) is arranged inside the machine tool (1), a support plate (2) is fixedly mounted on the top of the machine tool (1), and the shaft-type part (3) is located between the support plate (2) and the machine tool (1); It also includes a clamping assembly, and the clamping assembly is located on the machine tool (1), and the bottom end of the shaft part (3) can be inserted into the clamping assembly and fixed by the clamping assembly; A moving block (10) is provided inside the support plate (2), a lower pressing cover (14) is provided at the bottom of the moving block (10), and the bottom of the lower pressing cover (14) can cover the top of the shaft part (3) to press down and clamp the top of the shaft part (3).

2. The special fixture for milling square grooves of automobile shaft parts according to claim 1 is characterized in that: A cylinder (4) is fixedly connected to the top of the movable table in the machine tool (1), and a loading table (5) is fixedly installed on the top of the movable table in the machine tool (1). A loading groove (6) is provided in the loading table (5), and a clamping plate (7) is slidably connected to the loading table (5), and the clamping plate (7) can extend into the loading groove (6). The output shaft of the cylinder (4) slides through the loading table (5) and is fixedly connected to one side of the clamping plate (7). The clamping plate (7) and the inner wall of the loading groove (6) can be driven by the push of the output shaft of the cylinder (4) to cooperate with each other to clamp the shaft parts (3).

3. The special fixture for milling square grooves of automobile shaft parts according to claim 1 is characterized in that: The movable block (10) has an internal thread through which a screw rod (17) is penetrated, and the bottom end of the screw rod (17) is rotatably connected to the top end of the lower pressure cover (14), and the screw thread of the screw rod (17) can drive the lower pressure cover (14) to move up and down on the top end of the shaft part (3). The top of the screw rod (17) is fixedly connected to a rotating handle (13), and the bottom of the rotating handle (13) is fixedly connected to a wrapping sleeve (16), and the wrapping sleeve (16) is sleeved on the outer wall of the screw rod (17). A through groove (15) is provided in the movable block (10), and the wrapping sleeve (16) slides through the through groove (15).

4. The special fixture for milling square grooves of automobile shaft parts according to claim 1 is characterized in that: A first movable frame (8) is slidably connected in the support plate (2), a second movable frame (9) is arranged in the support plate (2), and the first movable frame (8) and the second movable frame (9) are placed crosswise up and down in the support plate (2).

5. The special fixture for milling square grooves of automobile shaft parts according to claim 1 is characterized in that: The left and right sides of the moving block (10) are fixedly connected to second moving bars (12), the front and rear sides of the moving block (10) are fixedly connected to first moving bars (11), and the two second moving bars (12) are slidably connected in the second moving frame (9), and the two first moving bars (11) are slidably connected in the first moving frame (8).

6. The special fixture for milling square grooves of automobile shaft parts according to claim 1, characterized in that: The machine tool (1) is provided with a tool holder, and the two ends of the tool holder are respectively limited by clamping claws and ejector pins. The outer wall of the tool holder is fixedly sleeved with two milling cutters (18), and the radii of the two milling cutters (18) are both greater than the diameter of the shaft part (3).

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