Flexible shockproof jig for hollow part and working method of flexible shockproof jig

Abstract

The invention relates to the technical field of machining of hollow parts, in particular to a flexible shockproof jig for hollow parts, which comprises a support column, a connecting column and a flexible support block, the supporting column comprises a T-shaped base and a square column which are integrally formed, a counterbore is formed in the top face of the base, a threaded hole B is formed in the side face of the base, and the supporting column and the hollow part are connected by screwing a screw A into the counterbore and the threaded hole A; 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, and the other end of the column body is provided with a through hole A and is connected with the threaded hole B of the supporting column through a screw B; the jig is installed in the hollow part and is supported outwards. Through the adjustability of the device, the device supports the position with low rigidity of a part, plays a role in supporting and reinforcing, reduces vibration in machining, avoids poor machining of a workpiece, realizes the machining stability of a product, and improves the product quality and the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hollow part machining, in particular to a flexible anti-vibration jig for hollow parts and a working method thereof. BACKGROUND

[0002] In the fields of automobiles, semiconductors, etc., in order to improve transportation efficiency, reduce energy consumption and improve endurance, the requirement for lightweight parts is getting higher and higher. Hollow parts can effectively reduce weight under the premise of ensuring certain strength and rigidity, so they have been widely used and promoted the development of related processing technologies. However, when machining hollow parts, sometimes the rigidity is not strong enough to cause tool chatter, resulting in abnormal parts or scrap. SUMMARY

[0003] In order to solve the above technical problems, the present application discloses a flexible anti-vibration jig for hollow parts and a working method thereof.

[0004] The specific technical solutions are as follows: A flexible anti-vibration jig for hollow parts, a plurality of threaded holes A are provided on the inner side of the hollow part, the jig comprises a support column, a connecting column and a flexible support block; the support column comprises a T-shaped base and a square column formed integrally, a countersunk hole is provided on the top surface of the base, a threaded hole B is provided on the side surface, a screw A is screwed into the countersunk hole and the threaded hole A to connect the support column and the hollow part; the connecting column comprises a column body, one end of the column body is a mounting end connected with the flexible support block, the flexible support block abuts against the inner wall of the hollow part, the other end of the column body is provided with a through hole A connected with the threaded hole B of the support column through a screw B; the jig is installed inside the hollow part to support the position with weak rigidity outward.

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

[0006] The flexible support block comprises a block body, one end of the block body is an elastic centering pin for supporting the hollow part, a steel needle inside the elastic centering pin is a spring needle, which is fixed after being adjusted to a suitable position by a fixed adjusting screw, and the other end is provided with a threaded hole C connected with the mounting hole of the connecting column through a screw C.

[0007] A groove is provided on the column body, and the jig can be installed in pairs and crossed inside the hollow part, and when crossed, the grooves of the two connecting columns are opposite to avoid interference.

[0008] When the jig is installed in pairs and crossed, one end of one of the connecting columns is connected with the flexible support block and the support column in sequence, and the other ends of the support column and the connecting column are connected with the threaded holes A on the hollow part through screws.

[0009] The working method of the flexible anti-vibration jig for the hollow part specifically comprises the following steps: firstly, the support column and the hollow part are connected by screwing screw A into the countersunk hole and the threaded hole A; then the through hole A opened at one end of the connecting column is connected with the threaded hole B of the support column through screw B; and then the mounting hole at the other end of the column body is connected with the flexible support block through screw C, and the elastic center pin of the flexible support block is used to support the position where the hollow part is not rigid; if two sets of flexible anti-vibration jigs are used, the jigs are cross-installed in the hollow part in pairs, the grooves of the two connecting columns are opposite, and one end of one of the connecting columns is sequentially connected with the flexible support block and the support column, and the other ends of the support column and the connecting column are connected with the threaded holes A on the hollow part through screws. The present application aims at the problem of tool chatter caused by the poor rigidity of the hollow part during machining, which causes the abnormality or scrap of the part, and proposes a flexible anti-vibration jig for the hollow part, which is fixed by screwing the hollow part and the support column, and the connecting column is connected with the support block and the flexible support block through screws.

[0010] The single part of the present application is a simple plate structure, which can be completed by using a three-axis machine tool, realizing low cost and high efficiency. The support column is designed with a countersunk hole and a thread, which is simple in structure and convenient for connection with the part and the connecting column. The connecting column is designed with a two-sided connection mode, which connects the support column on one side and the flexible support block on the other side, and a groove is designed at the same time, which can realize the cross use of two and increase the rigidity of the mechanism during use. The flexible support block realizes adjustable support by using a standard flexible center pin, avoiding the deformation of the workpiece caused by rigid support. The overall tooling is convenient and fast to install, and the simple structure can effectively reduce the risk of tool chatter during machining of the part, greatly improving the product quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 Figure 1 is a structural schematic diagram of the hollow part of the present application; Figure 2 Figure 2 is a structural schematic diagram of the support column of the present application; Figure 3 Figure 3 is a structural schematic diagram of the connecting column of the present application; Figure 4 Figure 4 is a structural schematic diagram of the flexible support block of the present application; Figure 5 Figure 5 is a connection schematic diagram of the support column, the connecting column and the flexible support block of the present application; Figure 6 Figure 6 is a schematic diagram of the jig installed in the hollow part 1 in pairs; In the figure, 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 center pin; 43, fixed adjusting screw; 44, threaded hole C. DETAILED DESCRIPTION

[0012] The application will be further described below in conjunction with the drawings, but the protection scope of the application is not limited to the drawings.

[0013] Figure 1 It is a structure schematic view of the hollow part in the application, Figure 2 It is a structure schematic view of the support column in the application, Figure 3 It is a structure schematic view of the connecting column in the application, Figure 4 It is a structure schematic view of the flexible support block in the application, Figure 5 It is a connection schematic view of the support column, connecting column and flexible support block in the application, The flexible shockproof jig of the hollow part in the application, a plurality of threaded holes A11 are formed in the inner side of the hollow part 1, the jig comprises a support column 2, a connecting column 3 and a flexible support block; the support column 2 comprises a base 21 and a square column 22 which are integrally formed in T shape, a countersunk hole 23 is formed on the top surface of the base 21, a threaded hole B 24 is formed on the side surface, a screw A 25 is screwed into the countersunk hole 23 and the threaded hole A 11 to connect the support column 2 and the hollow part 1, and the support column 2 can be quickly connected with the hollow part 1 and the connecting column 3; the connecting column 3 comprises a column body 31, one end of the column body 31 is a mounting end 35 which is in U shape, a mounting hole 36 is formed on the opposite side, and a screw C 37 is used to connect the flexible support block 4. The flexible support block 4 comprises a block 41, one end of the block 41 is an elastic center pin 42 which is used to support the hollow part 1, the steel needle inside the elastic center pin 42 is a spring needle, the elastic center pin 42 is fixed by a fixed adjusting screw 43 after being adjusted to a suitable position, and a threaded hole C 44 is formed on the other end to be connected with the mounting hole 36 of the connecting column 3 by the screw C 37. The elastic center pin 42 can be flexibly adjusted and fixed, and can effectively support the inner wall of the part. The flexible support block 4 abuts against the inner wall of the hollow part 1, the other end of the column body 31 is connected with the support column 2; the jig is installed inside the hollow part 1 to support outwardly.

[0014] Figure 6The schematic view of the pair of crossed jigs installed in the hollow part 1 is shown in the figure. The groove 34 is opened on the column 31. The jigs can be installed in the hollow part 1 in pairs and cross each other. When crossing, the grooves 34 of the two connecting columns 3 are opposite to avoid interference. The cross installation can not only strengthen the structural rigidity of itself, but also support the workpiece. When the jigs are installed in pairs and cross each other, one end of one connecting column 3 is connected with the flexible support block 4 and the support column 2 in sequence. The support column 2 and the other end of the connecting column 3 are connected with the threaded hole A on the hollow part 1 through screws, respectively.

[0015] In use, first, the support column 2 is connected with the hollow part 1 by screwing the screw A25 into the countersunk hole 23 and the threaded hole A11. Then, the through hole A32 opened at one end of the connecting column 3 is connected with the threaded hole B24 of the support column 2 through the screw B33. Then, the mounting hole 36 at the other end of the column 31 is connected with the flexible support block 4 through the screw C37. The elastic ejector pin 42 of the flexible support block 4 is used to support the position of the hollow part 1 which is not strong in rigidity. If two sets of flexible shockproof jigs are used, the jigs are installed in the hollow part 1 in pairs and cross each other. The grooves 34 of the two connecting columns 3 are opposite, and one end of one connecting column 3 is connected with the flexible support block 4 and the support column 2 in sequence. The support column 2 and the other end of the connecting column 3 are connected with the threaded hole A on the hollow part 1 through screws, respectively.

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). The top surface of the base (21) has a countersunk hole (23), and the side surface has a threaded hole B (24). The countersunk hole (23) and the threaded hole A (11) are screwed into the countersunk hole (23) and the threaded hole A (11) by screw A (25) 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). 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 screw B (33); the fixture is installed inside the hollow part (1) to support a position where the rigidity is not strong.

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 shock-absorbing 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 shock-absorbing 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 flexible shock-absorbing fixture for hollow parts according to claim 1, characterized in that: 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.

6. 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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