Flexible anti-vibration jig for hollow part and working method thereof

Abstract

The present application relates to the technical field of hollow part machining, and particularly relates to a flexible shockproof jig for hollow parts, which comprises a supporting column, a connecting column and a flexible supporting block; the supporting column comprises a base and a square column which are integrally formed in a T shape, a countersunk hole is formed on the top surface of the base, a threaded hole B is formed on the side surface of the base, a screw A is screwed into the countersunk hole and the threaded hole A to connect the supporting column and the hollow part; the connecting column comprises a column body, one end of the column body is a mounting end and is connected with the flexible supporting block, the flexible supporting block abuts against the inner wall of the hollow part, a through hole A is formed on the other end of the column body and is connected with the threaded hole B of the supporting column through a screw B; the jig is mounted inside the hollow part to support outwardly. Through the adjustability of the jig, the position where the rigidity of the part is not strong is supported, the supporting effect is strengthened, the vibration in machining is reduced, the machining defects of the workpiece are avoided, the stability of product machining is realized, and the product quality and production efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of hollow parts machining technology, and in particular to a flexible shockproof fixture for hollow parts and its working method. Background Technology

[0002] In the automotive and semiconductor industries, the demand for lightweight components is increasing to improve transportation efficiency, reduce energy consumption, and extend driving range. Hollow parts, due to their hollow internal structure, can effectively reduce weight while maintaining sufficient strength and rigidity, thus gaining widespread application and driving the development of related processing technologies. However, during the machining of hollow parts, insufficient rigidity can sometimes cause tool chattering, leading to part malfunctions or scrap. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention discloses a flexible shock-absorbing fixture for hollow parts and its working method.

[0004] The specific technical solution is as follows: A flexible shock-absorbing fixture for a hollow part includes multiple threaded holes A on the inner side of the hollow part. The fixture comprises a support column, a connecting column, and a flexible support block. The support column includes an integrally formed T-shaped base and a square column. A countersunk hole is formed on the top surface of the base, and a threaded hole B is formed on the side. Screws A are screwed into the countersunk hole and the threaded hole A to connect the support column and the hollow part. The connecting column includes a column body. One end of the column body is an installation end that connects to the flexible support block, which abuts against the inner wall of the hollow part. The other end of the column body has a through hole A, which is connected to the threaded hole B of the support column by screws B. The fixture is installed inside the hollow part to provide outward support at a location where rigidity is not strong.

[0005] The mounting end is U-shaped, with a mounting hole on the opposite side, and is connected to the flexible support block by screw C.

[0006] The flexible support block includes a block body, one end of which is an elastic pin for supporting hollow parts. The steel pin inside the elastic pin is a spring pin, which is fixed by a fixing screw after being adjusted to a suitable position. The other end has a threaded hole C, which is connected to the mounting hole of the connecting column through screw C.

[0007] The column has a groove, and the fixture can be installed in pairs crosswise inside the hollow part. When crosswise, the grooves of the two connecting columns face each other to avoid interference.

[0008] When the fixtures are installed in pairs and crosswise, one end of one of the connecting columns is connected to the flexible support block and the support column in sequence, and the other ends of the support column and the connecting column are respectively connected to the threaded hole A on the hollow part by screws.

[0009] The working method of the flexible shock-absorbing fixture for hollow parts specifically includes the following steps: First, screw A into the countersunk hole and threaded hole A to connect the support column and the hollow part; then, connect the through hole A at one end of the connecting column to the threaded hole B of the support column using screw B; next, connect the mounting hole at the other end of the column to the flexible support block using screw C. The elastic pin of the flexible support block is used to support the less rigid parts of the hollow part; if two sets of flexible shock-absorbing fixtures are used, the fixtures are installed in pairs and crosswise inside the hollow part, with the grooves of the two connecting columns facing each other, and one end of one connecting column connected to the flexible support block and the support column in sequence, while the other ends of the support column and the connecting column are respectively connected to the threaded hole A on the hollow part using screws. Compared with the prior art, the present invention has the following beneficial technical effects: This invention addresses the problem of tool chatter caused by insufficient rigidity during the machining of hollow parts, which leads to part abnormalities or scrap. It proposes a flexible anti-vibration fixture for hollow parts. The hollow part is secured to the support column with screws. The connecting column, along with screws, connects to the support block and the flexible support block. Because the front end of the flexible support block has an adjustable ejector pin, the support effect is effectively improved, deformation is prevented, and welding quality is further enhanced. This fixture can effectively improve the product qualification rate, product quality, and production efficiency.

[0010] The individual parts of this invention have a simple plate-like structure, which can be manufactured using a three-axis machine tool, achieving low cost and high efficiency. The support column is designed with countersunk holes and threads, resulting in a simple structure that facilitates connection with parts and connecting columns, making it simple, convenient, and quick. The connecting column is designed with a two-sided connection method, connecting to the support column on one side and the flexible support block on the other. A groove is also designed to allow for cross-use, increasing the rigidity of the mechanism during use. The flexible support block uses standard flexible ejector pins to achieve adjustable support, avoiding workpiece deformation caused by rigid support. The overall tooling is easy and quick to install, and the simple structure effectively reduces the risk of tool chatter during part machining, greatly improving product quality and production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the hollow part in this invention; Figure 2 This is a schematic diagram of the support column of the present invention; Figure 3 This is a schematic diagram of the connecting column of the present invention; Figure 4 This is a schematic diagram of the flexible support block of the present invention; Figure 5 This is a schematic diagram showing the connection between the support column, connecting column, and flexible support block of the present invention; Figure 6 This is a schematic diagram of the fixtures of the present invention being installed in pairs and crosswise inside the hollow part 1; In the diagram, 1. Hollow part; 11. Threaded hole A; 2. Support column; 21. Base; 22. Square column; 23. Countersunk hole; 24. Threaded hole B; 25. Screw A; 3. Connecting column; 31. Main body; 32. Through hole A; 33. Screw B; 34. Groove; 35. Mounting end; 36. Mounting hole; 37. Screw C; 4. Flexible support block; 41. Block; 42. Elastic ejector pin; 43. Fixing and adjusting screw; 44. Threaded hole C. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the drawings.

[0013] Figure 1 This is a schematic diagram of the hollow part in this invention. Figure 2 This is a schematic diagram of the support column of the present invention. Figure 3 This is a schematic diagram of the connecting column of the present invention. Figure 4 This is a schematic diagram of the flexible support block of the present invention. Figure 5 This is a schematic diagram showing the connection between the support column, connecting column, and flexible support block of the present invention. The present invention relates to a flexible shock-absorbing fixture for hollow parts. The hollow part 1 has multiple threaded holes A11 on its inner side. The fixture includes a support column 2, a connecting column 3, and a flexible support block. The support column 2 includes an integrally formed T-shaped base 21 and a square column 22. A countersunk hole 23 is formed on the top surface of the base 21, and a threaded hole B24 is formed on its side. A screw A25 is screwed into the countersunk hole 23 and the threaded hole A11 to connect the support column 2 and the hollow part 1. The support column 2 can be quickly connected to the hollow part 1 and the connecting column 3. The connecting column 3 includes a column body 31, one end of which is a mounting end 35. The mounting end 35 has a U-shaped opening, and a mounting hole 36 is formed on the opposite side. A screw C37 is used to connect it to the flexible support block 4. The flexible support block 4 includes a block body 41, one end of which is an elastic pin 42 for supporting the hollow part 1. The steel pin inside the elastic pin 42 is a spring pin, which is fixed by a fixing screw 43 after being adjusted to a suitable position. The other end has a threaded hole C44, which is connected to the mounting hole 36 of the connecting column 3 by a screw C37. The elastic pin 42 can be flexibly adjusted and fixed, effectively supporting the inner wall of the part. The flexible support block 4 abuts against the inner wall of the hollow part 1, and the other end of the column 31 is connected to the support column 2; the fixture is installed inside the hollow part 1 to support it outward.

[0014] Figure 6This is a schematic diagram of the jigs of the present invention being installed in pairs and crosswise inside the hollow part 1. As shown in the figure, grooves 34 are formed on the column 31. The jigs can be installed in pairs and crosswise inside the hollow part 1. When crosswise, the grooves 34 of the two connecting columns 3 face each other to avoid interference. Crosswise installation can both enhance the structural rigidity and support the workpiece. When the jigs are installed in pairs and crosswise, one end of one of the connecting columns 3 is connected to the flexible support block 4 and the support column 2 in sequence. The other ends of the support column 2 and the connecting column 3 are respectively connected to the threaded holes A on the hollow part 1 by screws.

[0015] In use, first screw A25 into the countersunk hole 23 and threaded hole A11 to connect the support column 2 and the hollow part 1; then connect the through hole A32 at one end of the connecting column 3 to the threaded hole B24 of the support column 2 with screw B33; then connect the mounting hole 36 at the other end of the column 31 to the flexible support block 4 with screw C37. The elastic pin 42 of the flexible support block 4 is used to support the hollow part 1 at positions where rigidity is not strong. If two sets of flexible shock-absorbing fixtures are used, the fixtures are installed in pairs and crosswise inside the hollow part 1, with the grooves 34 of the two connecting columns 3 facing each other, and one end of one connecting column 3 connected to the flexible support block 4 and the support column 2 in sequence. The other ends of the support column 2 and the connecting column 3 are respectively connected to the threaded hole A on the hollow part 1 with screws.

Claims

1. A flexible shock-absorbing fixture for a hollow part, wherein the hollow part (1) has a plurality of threaded holes A (11) on its inner side, characterized in that: The fixture includes a support column (2), a connecting column (3), and a flexible support block (4); the support column (2) includes a T-shaped base (21) and a square column (22), a countersunk hole (23) is opened on the top surface of the base (21), and a threaded hole B (24) is opened on the side, and screws A (25) are screwed into the countersunk hole (23) and the threaded hole A (11) to connect the support column (2) and the hollow part (1); the connecting column (3) includes a column body, one end of the column body is an installation end (35) which is connected to the flexible support block (4), the flexible support block (4) abuts against the inner wall of the hollow part (1), and the other end of the column body has a through hole A (32) which is connected to the threaded hole B (24) of the support column (2) by screws B (33); the fixture is installed inside the hollow part (1) to support the position where the rigidity is not strong. When the fixtures are installed in pairs, one end of one of the connecting columns (3) is connected to the flexible support block (4) and the support column (2) in sequence, and the other ends of the support column (2) and the connecting column (3) are connected to the threaded hole A (11) on the hollow part (1) by screws respectively.

2. The flexible shockproof fixture for hollow parts according to claim 1, characterized in that: The mounting end (35) is a U-shaped opening with a mounting hole (36) on the opposite side, and is connected to the flexible support block (4) by screw C (37).

3. The flexible shockproof fixture for hollow parts according to claim 2, characterized in that: The flexible support block (4) includes a block (41), one end of which is an elastic pin (42) for supporting the hollow part (1). The steel pin inside the elastic pin (42) is a spring pin, which is fixed by a fixing screw (43) after being adjusted to a suitable position. The other end has a threaded hole C (44) and is connected to the mounting hole (36) of the connecting column (3) by a screw C (37).

4. The flexible shockproof fixture for hollow parts according to claim 1, characterized in that: The column has a groove (34) and the fixture can be installed in pairs crosswise inside the hollow part (1). When crosswise, the grooves (34) of the two connecting columns (3) face each other to avoid interference.

5. The working method of the flexible shockproof fixture for hollow parts as described in claim 1, characterized in that, The specific steps are as follows: First, screw A (25) into the countersunk hole (23) and threaded hole A (11) to connect the support column (2) and the hollow part (1); then, the through hole A (32) at one end of the connecting column (3) is connected to the threaded hole B (24) of the support column (2) by screw B (33); then, the mounting hole (36) at the other end of the column is connected to the flexible support block (4) by screw C (37), and the elastic pin (42) of the flexible support block (4) is used to support the hollow part (1) at a position where the rigidity is not strong; if two sets of flexible shock-absorbing fixtures are used, the fixtures are installed in pairs and crosswise inside the hollow part (1), the grooves (34) of the two connecting columns (3) are opposite each other, and one end of one of the connecting columns (3) is connected to the flexible support block (4) and the support column (2) in sequence, and the other ends of the support column (2) and the connecting column (3) are connected to the threaded hole A (11) on the hollow part (1) by screws respectively.

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