A clamp for machining lead screws

Abstract

This utility model discloses a fixture for machining lead screws, including a worktable. Support frames are fixedly installed at both ends of the lower outer surface of the worktable. A chuck fixture is fixedly installed at the left end of the upper outer surface of the worktable, and a tailstock support is fixedly installed at the right end of the upper outer surface of the worktable. Shaft end support structures are installed on both sides of the upper outer surface of the worktable. This fixture for machining lead screws, through the shaft end support structures, supports both ends of the lead screw, improving the stability of the lead screw during machining. The tailstock support increases the contact area with the tail end of the lead screw, further enhancing stability.

Description

Technical Field

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

[0002] In existing lead screw processing technology, the lead screw is usually fixed by clamping one end with a chuck and supporting the other end with a tailstock tip.

[0003] However, this traditional clamping method has the following significant drawbacks:

[0004] 1. Small contact area and insufficient stability: The small contact area between the tailstock tip and the lead screw results in uneven distribution of clamping force. During the machining process, displacement is easily caused by vibration or uneven force, which affects machining accuracy and surface quality.

[0005] 2. Lack of effective support: Traditional fixtures only fix the two ends of the lead screw, while the middle part lacks support. This will further reduce the machining accuracy, especially when machining long lead screws.

[0006] Therefore, we propose a fixture for machining lead screws. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] In view of the shortcomings of the prior art, this utility model provides a fixture for machining a lead screw, which supports both ends of the lead screw and increases the contact area with the tail end of the lead screw, thereby improving the stability of machining and other advantages, which can effectively solve the problems in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a clamp for machining a lead screw, comprising a worktable, with support frames fixedly installed at the left and right ends of the lower outer surface of the worktable, a chuck clamp fixedly installed at the left end of the upper outer surface of the worktable, and a tailstock ejector support fixedly installed at the right end of the upper outer surface of the worktable. Shaft end support structures are installed on the left and right sides of the upper outer surface of the worktable. The tailstock ejector support includes a fixed frame, a second hydraulic rod, a second guide ring, a second guide rod, a mounting block, a pressure sensor, a second connecting shaft, an ejector block, and a second fixed block. The shaft end support structure includes a mounting plate, a first fixed block, a support shaft, a first connecting shaft, a first hydraulic rod, and a first guide rod. A through hole is opened in the middle of the left and right ends of the upper outer surface of the worktable, and a first guide ring is provided on the left and right sides of the through hole. The first guide rod passes through the first guide ring, and the piston rod of the first hydraulic rod moves through the through hole.

[0011] Preferably, the cylinder of the first hydraulic rod is fixed to the lower outer surface of the workbench, the upper outer surface of the piston rod of the first hydraulic rod is fixedly connected to the middle of the lower outer surface of the mounting plate, the first guide rod is fixedly installed on both sides of the lower outer surface of the mounting plate, and the outer wall of the first guide rod is slidably connected to the first guide ring.

[0012] Preferably, the first fixing block is fixedly installed on both ends of the upper outer surface of the mounting plate, the first connecting shaft is fixedly installed on both ends of the outer surface of the support shaft, and a cylindrical roller bearing is provided between the first connecting shaft and the first fixing block, and the first connecting shaft is rotatably connected to the first fixing block through the cylindrical roller bearing.

[0013] Preferably, the fixing frame is fixedly installed at the middle of the right end of the upper outer surface of the workbench, the second hydraulic rod is fixedly installed on the right outer surface of the fixing frame, and the piston rod of the second hydraulic rod moves through the fixing frame and is fixedly connected to one end of the outer surface of the pressure sensor. The pressure sensor is fixed at the middle of the outer surface of one side of the mounting block, and the second connecting shaft is fixed at the middle of the outer surface of the other side of the mounting block.

[0014] Preferably, a thrust bearing is provided between the second connecting shaft and the top material block, and the second connecting shaft is rotatably connected to the top material block through the thrust bearing.

[0015] Preferably, the second fixing block is fixedly installed on the lower outer surface of the mounting block, the second guide rod is fixed on one side of the outer surface of the second fixing block, the second guide ring is fixed on the lower part of one side of the outer surface of the fixing frame, the second guide rod passes through the second guide ring, and the outer wall of the second guide rod and the second guide ring are slidably connected.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a fixture for machining lead screws, which has the following advantages:

[0018] 1. This type of clamping fixture for pressing lead screws significantly improves the stability of the pressing lead screw during the processing by using a shaft end support structure and a tailstock top support for dual limiting, reducing vibration and deformation, and ensuring processing accuracy.

[0019] 2. The clamp for pressing down the lead screw has a tailstock top support with a top block design. Compared with the traditional top support, it has a larger contact area and more uniform pressure distribution, effectively avoiding damage to the lead screw surface.

[0020] 3. This type of clamping fixture for pressing down lead screws uses hydraulic drive and pressure sensor to achieve precise adjustment and real-time monitoring of clamping force, improves the convenience of operation, and adapts to the processing needs of lead screws of different specifications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a clamping fixture for machining lead screws according to the present invention.

[0022] Figure 2 This is a partial structural diagram of a clamping fixture for machining lead screws according to the present invention.

[0023] Figure 3 This is a schematic diagram of the shaft end support structure of a clamp for machining a lead screw according to this utility model.

[0024] Figure 4 This is a schematic diagram of the tailstock top support structure in a clamping fixture for machining lead screws according to this utility model.

[0025] In the diagram: 1. Workbench; 2. Support frame; 3. Chuck clamp; 4. Tailstock ejector support; 5. Shaft end support structure; 6. Through hole; 7. First guide ring; 8. Mounting plate; 9. First fixing block; 10. Support shaft; 11. First connecting shaft; 12. First hydraulic rod; 13. First guide rod; 14. Fixing frame; 15. Second hydraulic rod; 16. Second guide ring; 17. Second guide rod; 18. Mounting block; 19. Pressure sensor; 20. Second connecting shaft; 21. Ejector block; 22. Second fixing block. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] This embodiment is a clamping fixture for machining lead screws.

[0028] like Figure 1-4 As shown, the workbench 1 is included. Support frames 2 are fixedly installed on the left and right ends of the lower outer surface of the workbench 1. A chuck clamp 3 is fixedly installed on the left end of the upper outer surface of the workbench 1. A tailstock top support 4 is fixedly installed on the right end of the upper outer surface of the workbench 1. Shaft end support structures 5 are installed on the left and right sides of the upper outer surface of the workbench 1. The tailstock top support 4 includes a fixed frame 14, a second hydraulic rod 15, a second guide ring 16, a second guide rod 17, a mounting block 18, a pressure sensor 19, a second connecting shaft 20, a top support block 21, and a second fixed block 22. The shaft end support structure 5 includes a mounting plate 8, a first fixed block 9, a support shaft 10, a first connecting shaft 11, a first hydraulic rod 12, and a first guide rod 13. A through hole 6 is opened in the middle of the left and right ends of the upper outer surface of the workbench 1. A first guide ring 7 is provided on the left and right sides of the through hole 6. The first guide rod 13 passes through the first guide ring 7. The piston rod of the first hydraulic rod 12 moves through the through hole 6.

[0029] The cylinder of the first hydraulic rod 12 is fixed to the lower outer surface of the workbench 1. The upper outer surface of the piston rod of the first hydraulic rod 12 is fixedly connected to the middle of the lower outer surface of the mounting plate 8. The first guide rod 13 is fixedly installed on both sides of the lower outer surface of the mounting plate 8, and the outer wall of the first guide rod 13 is slidably connected to the first guide ring 7. The first fixing block 9 is fixedly installed at both ends of the upper outer surface of the mounting plate 8. The first connecting shaft 11 is fixedly installed on the outer surfaces of both ends of the support shaft 10. A cylindrical roller bearing is provided between the first connecting shaft 11 and the first fixing block 9. The first connecting shaft 11 is rotatably connected to the first fixing block 9 through the cylindrical roller bearing. The fixing frame 14 is fixedly installed at the middle of the right end of the upper outer surface of the workbench 1. The second hydraulic rod 15 is fixedly installed on the right side of the fixing frame 14. The piston rod of the second hydraulic rod 15 is fixedly connected to one end of the outer surface of the fixed frame 14 and the pressure sensor 19. The pressure sensor 19 is fixed in the middle of the outer surface of one side of the mounting block 18, and the second connecting shaft 20 is fixed in the middle of the outer surface of the other side of the mounting block 18. A thrust bearing is provided between the second connecting shaft 20 and the top material block 21, and the second connecting shaft 20 is rotatably connected to the top material block 21 through the thrust bearing. The second fixed block 22 is fixedly installed on the lower outer surface of the mounting block 18, the second guide rod 17 is fixed on one side of the outer surface of the second fixed block 22, and the second guide ring 16 is fixed on the lower part of one side of the outer surface of the fixed frame 14. The second guide rod 17 passes through the second guide ring 16, and the outer wall of the second guide rod 17 and the second guide ring 16 are slidably connected.

[0030] It should be noted that this utility model is a fixture for machining a lead screw. The chuck fixture 3 is existing technology. After clamping one end of the lead screw with the chuck fixture 3, the lead screw can be driven to rotate. This is readily known to those skilled in the art, and will not be elaborated further. The shaft end support structure 5 and the tailstock top support 4 are provided. The height of the support shaft 10 is adjusted by the operation of the first hydraulic rod 12 in the shaft end support structure 5. At this time, the first guide rod 13 moves up and down along the first guide ring 7, improving the stability of the lifting of the support shaft 10. The support shaft 10... The lower parts of both ends of the screw are supported, and then the operation of the second hydraulic rod 15 drives the top block 21 to move and contact the end of the screw. The pressure sensor 19 can monitor the pressure applied to the screw. The mounting block 18 drives the second guide rod 17 to move along the second guide ring 16 through the second fixing block 22, which improves the stability of the movement of the top block 21. The second connecting shaft 20 is connected to the top block 21 through a thrust bearing, so that the top block 21 can still rotate after contacting the screw, which improves the stability of the screw during processing.

[0031] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A clamp for processing press-down screw, comprising a workbench (1), the left and right ends of the outer surface of the lower end of the workbench (1) are fixedly installed with support frames (2), and the left end of the outer surface of the upper end of the workbench (1) is fixedly installed with a chuck clamp (3), characterized in that: A tailstock top support (4) is fixedly installed on the right end of the upper outer surface of the workbench (1). Shaft end support structures (5) are installed on the left and right sides of the upper outer surface of the workbench (1). The tailstock top support (4) includes a fixed frame (14), a second hydraulic rod (15), a second guide ring (16), a second guide rod (17), a mounting block (18), a pressure sensor (19), a second connecting shaft (20), a top support block (21), and a second fixed block (22). The shaft end support structure (5) includes a mounting plate (8), a first fixed block (9), a support shaft (10), a first connecting shaft (11), a first hydraulic rod (12), and a first guide rod (13). A through hole (6) is opened in the middle of the left and right ends of the upper outer surface of the workbench (1). A first guide ring (7) is provided on the left and right sides of the through hole (6). The first guide rod (13) passes through the first guide ring (7). The piston rod in the first hydraulic rod (12) moves through the through hole (6).

2. The clamp for processing a screwdown screw according to claim 1, wherein: The cylinder of the first hydraulic rod (12) is fixed on the lower outer surface of the workbench (1). The upper outer surface of the piston rod in the first hydraulic rod (12) is fixedly connected to the middle part of the lower outer surface of the mounting plate (8). The first guide rod (13) is fixedly installed on both sides of the lower outer surface of the mounting plate (8), and the outer wall of the first guide rod (13) is slidably connected to the first guide ring (7).

3. The clamp for processing a screwdown screw according to claim 2, wherein: The first fixing block (9) is fixedly installed on both ends of the upper outer surface of the mounting plate (8), and the first connecting shaft (11) is fixedly installed on both ends of the outer surface of the support shaft (10). A cylindrical roller bearing is provided between the first connecting shaft (11) and the first fixing block (9), and the first connecting shaft (11) is rotatably connected to the first fixing block (9) through the cylindrical roller bearing.

4. The clamp for processing a screwdown screw according to claim 3, wherein: The fixed frame (14) is fixedly installed in the middle of the right end of the upper outer surface of the workbench (1). The second hydraulic rod (15) is fixedly installed on the right outer surface of the fixed frame (14). The piston rod in the second hydraulic rod (15) moves through the fixed frame (14) and is fixedly connected to one end of the outer surface of the pressure sensor (19). The pressure sensor (19) is fixed in the middle of the outer surface of one side of the mounting block (18). The second connecting shaft (20) is fixed in the middle of the outer surface of the other side of the mounting block (18).

5. A fixture for machining a lead screw according to claim 4, characterized in that: A thrust bearing is provided between the second connecting shaft (20) and the top material block (21), and the second connecting shaft (20) is rotatably connected to the top material block (21) through the thrust bearing.

6. The fixture for machining a lead screw according to claim 5, characterized in that: The second fixing block (22) is fixedly installed on the lower outer surface of the mounting block (18), the second guide rod (17) is fixed on one side of the outer surface of the second fixing block (22), the second guide ring (16) is fixed on the lower part of one side of the outer surface of the fixing frame (14), the second guide rod (17) passes through the second guide ring (16), and the outer wall of the second guide rod (17) and the second guide ring (16) are slidably connected.

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