A screw machine cylinder section horizontal lathe clamping tool

Abstract

The utility model relates to processing equipment technical field, concretely relates to a kind of screw machine barrel section horizontal car clamping tool, including spiral machine barrel section, the inside of spiral machine barrel section is provided with flange plate, the middle position of flange plate is equipped with center hole, the center hole includes the first top hole and the second top hole sequentially arranged from left to right, the first top hole and the second top hole are coaxial and mutually communicated;The flange plate is equipped with several mounting holes with center hole as center circular array;Top tight piece is equipped on the inner wall of mounting hole close to spiral machine barrel section, one end of top tight piece penetrates flange plate, and top to the inner wall of spiral machine barrel section;The inner wall of spiral machine barrel section is annularly arranged with multiple auxiliary web, auxiliary web is located at the inboard of flange plate, for limiting the position of flange plate.The utility model can assist horizontal car to quickly clamp barrel section, with stronger universality, can be applicable to different diameter, length barrel section processing, reduce manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, specifically to a screw conveyor barrel section horizontal lathe clamping fixture. Background Technology

[0002] As the core equipment for underground tunnel construction, the tunnel boring machine (TBM) relies on its key component, the screw conveyor, for transporting excavated soil and providing high-pressure sealing. It also needs to ensure the coaxiality of the flanges at both ends, requiring high dimensional accuracy. Furthermore, screw conveyor sections are typically large-diameter and ultra-long structures, with diameters reaching approximately 1 meter and lengths reaching approximately 4 meters. The diameter and length of these sections often need to be adjusted according to different geological requirements and client specifications.

[0003] Currently, horizontal lathes are commonly used to process the cylinder sections of screw conveyors. However, processing cylinder sections on a horizontal lathe requires welding cross supports onto the cylinder section and machining a center hole at the middle position of the cross support. Then, the cylinder section is clamped and fixed by the chuck and center of the horizontal lathe in conjunction with the cross support. This method has the drawbacks of making it difficult to process cylinder sections on a horizontal lathe, resulting in a complex operation process and high manufacturing costs. Summary of the Invention

[0004] This invention addresses the problem of difficult machining of tunnel boring machine (TBM) sections on a horizontal lathe, by providing a clamping fixture for the TBM section horizontal lathe. This fixture assists in the rapid clamping of sections on the horizontal lathe, has strong versatility, and can be applied to the machining of sections of different diameters and lengths, thereby reducing manufacturing costs.

[0005] To achieve the above objectives, the technical solution of this utility model is: a horizontal lathe clamping fixture for a screw conveyor section, comprising a screw conveyor section, wherein a flange plate is provided inside the screw conveyor section, and a central hole is provided at the middle position of the flange plate. The central hole includes a first top hole and a second top hole arranged sequentially from left to right, the first top hole and the second top hole being coaxial and interconnected. The central hole at the middle position of the flange plate mates with a center of the horizontal lathe, and the center of the horizontal lathe presses against the central hole to achieve the effect of pressing the flange plate, and the screw conveyor section is clamped and fixed under the action of the horizontal lathe chuck.

[0006] The flange plate has several mounting holes arranged in a circular array with the central hole as the center; a clamping member is provided on the inner wall of the mounting hole near the screw conveyor section, one end of the clamping member penetrates the flange plate and abuts against the inner wall of the screw conveyor section; the mounting hole provides an installation position for the clamping member, and the flange plate is fixed inside the screw conveyor section by pressing the clamping member against the inner wall of the screw conveyor section.

[0007] The inner wall of the screw conveyor section is provided with multiple auxiliary stiffeners arranged in a ring. These auxiliary stiffeners are located inside the flange plate and are used to restrict the position of the flange plate. The auxiliary stiffeners restrict the position of the flange plate. When the horizontal lathe center is tightened to the center hole, the auxiliary stiffeners block the flange plate to prevent it from moving deeper into the screw conveyor section.

[0008] Furthermore, the flange plate has a circular structure, and the diameter of the flange plate is smaller than the inner diameter of the screw conveyor section. The purpose of this is to ensure that the flange plate can be placed inside the screw conveyor section.

[0009] Furthermore, the second top hole has a frustum-shaped structure, with the small end facing inward and the large end facing outward, ensuring that the first and second top holes can mate with the center of the horizontal lathe.

[0010] Furthermore, the side wall of the flange plate is provided with several threaded holes arranged in a circumferential array. The threaded holes are connected to the mounting holes. The threaded holes are located in the middle of the inner wall of the screw conveyor section near the mounting holes. The threaded holes facilitate the clamping member to be pressed against the inner wall of the screw conveyor section, and also facilitate the adjustment of the extension length of the clamping member to suit the processing of sections with different diameters.

[0011] Furthermore, the tightening component is a tightening bolt, one end of which passes through the threaded hole and the other end abuts against the inner wall of the screw conveyor section; the tightening bolt is threaded with an anti-loosening nut located in the mounting hole, and the tightening bolt achieves the effect of fixing the flange plate to the screw conveyor section, while the anti-loosening nut is used to lock the tightening bolt and improve the effect of the tightening bolt in fixing the flange plate.

[0012] The beneficial effects of this utility model through the above technical solution are as follows: This utility model has a simple structure and good performance. It can assist the horizontal car in quickly clamping the cylinder section, solving the problem of difficult processing of the cylinder section on the horizontal car of the tunnel boring machine. The clamping fixture has strong versatility and can be applied to the processing of cylinder sections of different lengths and diameters, reducing the manufacturing cost of cylinder sections and enabling the efficient and low-cost manufacturing of cylinder sections.

[0013] This utility model involves placing a flange plate inside the screw conveyor section and closely abutting it against the auxiliary stiffener plate. The flange plate is then fixed inside the screw conveyor section using a clamping device. The center of the horizontal lathe is then pressed against the center hole in the middle of the flange plate, and the screw conveyor section is quickly clamped and fixed using the horizontal lathe chuck.

[0014] This utility model uses an auxiliary stiffener to restrict the position of the flange plate, acting as a barrier to prevent the flange plate from moving deeper into the screw conveyor section when the center of the lathe is tightened to the center hole. The clamping component of this utility model uses a clamping bolt, which is installed onto the flange plate through a threaded hole. The length of the clamping bolt extending beyond the threaded hole is adjustable, enabling the flange plate to be fixed to screw conveyor sections of different diameters. This fixture is suitable for machining screw conveyor sections of different lengths and diameters. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a screw conveyor barrel section clamping fixture for a horizontal lathe according to this utility model. Figure 1 ; Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at point AA; Figure 3 This is a schematic diagram of the structure of a screw conveyor barrel section clamping fixture for a horizontal lathe according to this utility model. Figure 2 (Excluding screw conveyor sections); Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at point BB; Figure 5 This is a structural schematic diagram of the utility model in use.

[0016] The numbers in the attached diagram are as follows: 1 is the screw conveyor section, 2 is the auxiliary stiffener, 3 is the flange plate, 4 is the first top hole, 5 is the second top hole, 6 is the mounting hole, 7 is the tightening bolt, and 8 is the lock nut. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-5 As shown, a screw conveyor barrel clamping fixture for a horizontal lathe includes a screw conveyor barrel 1. A flange plate 3 is provided inside the screw conveyor barrel 1. A central hole is formed at the center of the flange plate 3. The central hole includes a first top hole 4 and a second top hole 5 arranged sequentially from left to right. The first top hole 4 and the second top hole 5 are coaxial and interconnected. In this embodiment, the central hole at the center of the flange plate 3 mates with the center point of the horizontal lathe. When clamping and fixing the screw conveyor barrel 1, the center point of the horizontal lathe is pressed against the central hole. The screw conveyor barrel 1 is clamped and fixed by the flange plate 3 and the chuck built into the horizontal lathe.

[0018] The flange plate 3 has several mounting holes 6 arranged in a circular array with the central hole as the center. A clamping member is provided near the inner wall of the screw conveyor section 1 near each mounting hole 6. One end of the clamping member penetrates the flange plate 3 and abuts against the inner wall of the screw conveyor section 1. In this embodiment, the flange plate 3 has four mounting holes 6 and four clamping members. The flange plate 3 provides a mounting position for the clamping members, allowing them to fix the flange plate 3 inside the screw conveyor section 1. Specifically, rotating the four clamping members pushes their ends against the inner wall of the screw conveyor section 1, thus fixing the flange plate 3 inside the screw conveyor section 1. The clamping members are then finely adjusted to ensure that the center of the flange plate 3 is coaxial with the center of the screw conveyor section 1, ensuring that the tip of the horizontal car can abut against the first top hole 4 and the second top hole 5.

[0019] The inner wall of the screw conveyor section 1 is provided with a plurality of auxiliary stiffening plates 2 arranged in a ring. The auxiliary stiffening plates 2 are located inside the flange plate 3 and are used to restrict the position of the flange plate 3. In this embodiment, there are four auxiliary stiffening plates 2. The four auxiliary stiffening plates 2 are welded and fixed to the inner wall of the screw conveyor section 1 in a ring at equal intervals. The auxiliary stiffening plates 2 act as a barrier for the flange plate 3. The flange plate 3 is tightly attached to the auxiliary stiffening plates 2. In actual use, the auxiliary stiffening plates 2 are riveted to a position 200mm from the inner wall of the screw conveyor section 1.

[0020] The flange plate 3 has a circular structure, and the diameter of the flange plate 3 is smaller than the inner diameter of the screw conveyor section 1, which ensures that the flange plate 3 can be fixed inside the screw conveyor section 1. The clamping fixture enables the horizontal lathe to complete the clamping work of the screw conveyor section 1.

[0021] The second top hole 5 has a frustum-shaped structure, with the small end of the second top hole 5 facing inward and the large end facing outward, ensuring that the top of the carriage can be tightly pressed against the first top hole 4 and the second top hole 5.

[0022] The flange plate 3 has several threaded holes arranged in a circumferential array on its side wall. These threaded holes communicate with the mounting holes 6, which are located near the middle of the inner wall of the screw conveyor section 1. In this embodiment, the flange plate 3 has four threaded holes, each corresponding to a mounting hole 6. The threaded hole design allows the clamping member to pass through the flange plate 3 and clamp against the inner wall of the screw conveyor section 1. Furthermore, the length of the clamping member can be adjusted, making the clamping fixture suitable for processing screw conveyor sections 1 of different diameters, thus improving the applicability of the clamping fixture.

[0023] The tightening component is a tightening bolt 7, one end of which passes through the threaded hole and the other end abuts against the inner wall of the screw conveyor section 1. A lock nut 8, located in the mounting hole 6, is threaded onto the tightening bolt 7. In this embodiment, the tightening bolt 7 is threadedly connected to the flange plate 3 through the threaded hole. In practical use, rotating the tightening bolt 7 pushes the end of the tightening bolt 7 against the inner wall of the screw conveyor section 1, thus fixing the flange plate 3 inside the screw conveyor section 1. After the flange plate 3 is fixed inside the screw conveyor section 1, rotating the lock nut 8 locks the tightening bolt 7, improving the fixing effect on the flange plate 3.

[0024] When using this utility model, firstly, four auxiliary stiffeners 2 are riveted and welded at equal intervals to the inner wall of the screw conveyor section 1 to be processed at a position of 200mm. Then, the flange plate 3 is placed inside the screw conveyor section 1 and pressed tightly against the auxiliary stiffeners 2. Next, the four tightening bolts 7 are rotated to push the ends of the tightening bolts 7 against the inner wall of the screw conveyor section 1. Then, the tightening bolts 7 are finely rotated to ensure that the center of the flange plate 3 is coaxial with the center of the screw conveyor section 1. Finally, the anti-loosening nut 8 is rotated to lock the tightening bolts 7, thus completing the installation of the clamping fixture.

[0025] Then, the screw conveyor section 1 with clamping fixtures is hoisted onto the horizontal lathe. One end of the screw conveyor section 1 is clamped by the three-jaw chuck of the horizontal lathe, and the other end is clamped by the center hole in the middle of the flange plate 3 by the center of the horizontal lathe. At this time, the screw conveyor section 1 is clamped and fixed on the horizontal lathe. Finally, the screw conveyor section 1 can be processed.

[0026] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.

Claims

1. A horizontal lathe clamping fixture for a screw excavator section, comprising a screw excavator section (1), characterized in that, The screw conveyor section (1) is provided with a flange plate (3) inside. A central hole is provided at the middle position of the flange plate (3). The central hole includes a first top hole (4) and a second top hole (5) arranged sequentially from left to right. The first top hole (4) and the second top hole (5) are coaxial and interconnected. The flange plate (3) has several mounting holes (6) arranged in a ring around the central hole; the mounting holes (6) are provided with a clamping member on the inner wall of the screw conveyor section (1) near the screw conveyor section (1), one end of the clamping member penetrates the flange plate (3) and reaches the inner wall of the screw conveyor section (1); The inner wall of the screw conveyor section (1) is provided with a plurality of auxiliary stiffeners (2), which are located on the inner side of the flange plate (3) and are used to limit the position of the flange plate (3).

2. The screw conveyor barrel section clamping fixture according to claim 1, characterized in that, The flange plate (3) has a circular structure, and the diameter of the flange plate (3) is smaller than the inner diameter of the screw conveyor section (1).

3. The screw conveyor barrel section clamping fixture according to claim 1, characterized in that, The second top hole (5) has a frustum-shaped structure, with the small end of the second top hole (5) facing inward and the large end facing outward.

4. The screw conveyor barrel section clamping fixture according to claim 1, characterized in that, The flange plate (3) has several threaded holes arranged in a circumferential array on its side wall. The threaded holes are connected to the mounting hole (6). The threaded holes are located in the middle of the inner wall of the mounting hole (6) near the screw conveyor section (1).

5. The screw conveyor barrel section clamping fixture according to claim 4, characterized in that, The tightening component is a tightening bolt (7), one end of which passes through the threaded hole and the end end abuts against the inner wall of the screw conveyor section (1); the tightening bolt (7) is threaded with an anti-loosening nut (8) located in the mounting hole (6).

Images