Quick-change pneumatic fixture for four-axis machining center

Abstract

The utility model belongs to four -axis machining center technical field, concretely is a kind of quick-change pneumatic fixture for four -axis machining center, including pneumatic rotary chuck, mounting disc, clamping cylinder and workpiece chuck, mounting disc is welded on the pneumatic rotary chuck, the mounting disc is used to install the rotary disc surface of pneumatic rotary chuck in four -axis machining center, clamping cylinder and workpiece chuck are installed on the pneumatic rotary chuck, rotating ring is rotatably equipped on the surface of clamping cylinder, the lateral wall of rotating ring is equipped with gas pipe joint, the gas pipe joint is symmetrically arranged, fixed support is movably arranged above rotating ring, the cross section of fixed support is right angle structure;The fixing mechanism of rotating ring is composed of transverse telescopic sleeve, fixed support and vertical telescopic sleeve, the rotating ring can be limited by fixing mechanism when pneumatic rotary chuck rotates, avoid rotating ring to rotate along with pneumatic rotary chuck, can improve the protection of gas pipe and gas pipe joint connecting place.

Description

Technical Field

[0001] This utility model relates to the field of four-axis machining center technology, specifically a quick-change pneumatic fixture for a four-axis machining center. Background Technology

[0002] A four-axis machining center is a high-precision, high-efficiency CNC machine tool mainly used for machining parts with complex shapes. It adds a rotary axis (usually the A-axis) to the traditional three-axis (X, Y, Z axes), allowing the tool to move in four directions, thus enabling more complex machining operations. A pneumatic rotary chuck is a device that uses pneumatic pressure to clamp and rotate the workpiece. It is widely used in CNC lathes, grinding machines, machining centers, and other equipment. The pneumatic rotary chuck has a built-in high-speed rotary cylinder, eliminating the need for additional hydraulic rotary cylinders and tie rods, saving space and cost.

[0003] In existing pneumatic rotary chucks, the rotating ring on the chuck needs to remain stationary during rotation so that the pneumatic connector on the rotating ring can be connected to the air pipe. However, the centrifugal force generated when the pneumatic rotary chuck rotates at high speed is still forcefully transmitted to the rotating ring, giving the rotating ring a torsional force. The air pipe applies a pulling force to the rotating ring to counteract the torsional force, which makes it easy for air to leak at the connection between the pneumatic connector and the air pipe. To solve the above problems, this application proposes a quick-change pneumatic fixture for a four-axis machining center. Utility Model Content

[0004] (a) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a quick-change pneumatic fixture for a four-axis machining center. The horizontal telescopic sleeve, the fixed bracket, and the vertical telescopic sleeve form a fixing mechanism for the rotating ring. When the pneumatic rotary chuck rotates, the fixing mechanism can limit the rotation of the rotating ring, preventing the rotating ring from rotating with the pneumatic rotary chuck. This can improve the protection of the air pipe and the air pipe joint connection, thereby solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, this utility model provides a quick-change pneumatic fixture for a four-axis machining center, including a pneumatic rotary chuck, a mounting plate, a clamping cylinder, and a workpiece chuck. The mounting plate is welded onto the pneumatic rotary chuck, and the mounting plate is used to mount the pneumatic rotary chuck onto the rotary table surface of the four-axis machining center. The clamping cylinder and the workpiece chuck are mounted on the pneumatic rotary chuck.

[0008] The clamping cylinder surface is provided with a rotating ring, and the side wall of the rotating ring is provided with an air pipe connector, which is arranged symmetrically.

[0009] A fixed support is movably provided above the rotating ring. The cross-section of the fixed support is a right-angle structure. A horizontal telescopic sleeve is movably provided on the horizontal surface of the fixed support, and a vertical telescopic sleeve is movably provided on the vertical surface of the fixed support. The vertical telescopic sleeve and the horizontal telescopic sleeve are used to adjust the length of the horizontal and vertical sides of the fixed support.

[0010] Preferably, a splicing seat is welded to the upper surface of the rotating ring, and a splicing guide groove is formed in the middle of the surface of the splicing seat.

[0011] Preferably, a vertical fixing plate is welded to the bottom of the vertical telescopic sleeve, and an assembly guide rail is provided on the lower surface of the vertical fixing plate, the assembly guide rail being inserted into the assembly guide groove.

[0012] Preferably, both the splicing base and the vertical fixing plate have through-holes, and after the assembly guide rail is inserted into the assembly guide groove, the fixing holes on the surfaces of the splicing base and the vertical fixing plate coincide.

[0013] Preferably, a transverse fixing plate is welded to the end of the transverse telescopic sleeve, and the transverse fixing plate is fixed to the lead screw machining center by bolts.

[0014] Preferably, both the horizontal telescopic sleeve and the vertical telescopic sleeve are threaded with locking screws, and the locking screws abut against the surface of the fixed bracket.

[0015] Preferably, a connecting bracket is welded to the side wall surface of the vertical telescopic sleeve, and the cross-section of the connecting bracket is a right-angled structure.

[0016] Preferably, a cleaning brush is fixed to the bottom of the vertical side of the connecting bracket by bolts, and the cleaning brush is in contact with the telescopic part of the pneumatic rotary chuck surface.

[0017] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] 1. In this utility model, the horizontal telescopic sleeve, the fixed bracket, and the vertical telescopic sleeve form a fixing mechanism for the rotating ring. When the pneumatic rotating chuck rotates, the fixing mechanism can limit the rotation of the rotating ring to prevent the rotating ring from rotating with the pneumatic rotating chuck, thereby improving the protection of the air pipe and the air pipe joint connection.

[0019] 2. In this utility model, the cleaning brush is fixed to the surface of the vertical telescopic sleeve by a connecting bracket. The cleaning brush is attached to the pneumatic rotary chuck. When the pneumatic rotary chuck rotates, the cleaning brush can clean the surface, preventing the shavings from falling onto the pneumatic rotary chuck and jamming the extension and retraction of the clamping cylinder, making it more reliable to use. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of a quick-change pneumatic fixture for a four-axis machining center according to the present invention;

[0021] Figure 2 This is a schematic diagram of the pneumatic rotary chuck structure of a quick-change pneumatic fixture for a four-axis machining center according to the present invention.

[0022] Figure 3 This is a schematic diagram of the rotating ring fixing structure of a quick-change pneumatic fixture for a four-axis machining center according to the present invention.

[0023] Figure 4 This is a schematic diagram of the pneumatic rotary chuck surface cleaning structure of a quick-change pneumatic fixture for a four-axis machining center according to the present invention.

[0024] Figure label:

[0025] 1. Pneumatic rotary chuck; 2. Mounting plate; 3. Clamping cylinder; 4. Workpiece chuck; 5. Rotary ring; 6. Air pipe connector; 7. Fixed bracket; 8. Horizontal telescopic sleeve; 9. Horizontal fixed plate; 10. Vertical telescopic sleeve; 11. Vertical fixed plate; 12. Assembly guide rail; 13. Splicing seat; 14. Assembly guide groove; 15. Connecting bracket; 16. Cleaning brush. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-4 As shown, the present invention proposes a quick-change pneumatic fixture for a four-axis machining center, comprising a pneumatic rotary chuck 1, a mounting plate 2, a clamping cylinder 3, and a workpiece chuck 4. The mounting plate 2 is welded onto the pneumatic rotary chuck 1, and the mounting plate 2 is used for mounting the pneumatic rotary chuck 1 onto the rotary table surface of the four-axis machining center. The clamping cylinder 3 and the workpiece chuck 4 are mounted on the pneumatic rotary chuck 1.

[0028] The clamping cylinder 3 has a rotating ring 5 on its surface, and the rotating ring 5 has an air pipe connector 6 on its side wall. The air pipe connectors 6 are arranged symmetrically.

[0029] A fixed bracket 7 is movably provided above the rotating ring 5. The cross-section of the fixed bracket 7 is a right-angle structure. A horizontal telescopic sleeve 8 is movably provided on the horizontal surface of the fixed bracket 7, and a vertical telescopic sleeve 10 is movably provided on the vertical surface of the fixed bracket 7. The vertical telescopic sleeve 10 and the horizontal telescopic sleeve 8 are used to adjust the length of the horizontal and vertical sides of the fixed bracket 7.

[0030] It should be noted that the pneumatic rotary chuck 1 is fixed to the rotary table of the four-axis machining center via the mounting plate 2. The surface of the rotating ring 5 is connected to the air pipe via the air pipe connector 6. The rotating ring 5 rotates with the surface of the pneumatic rotary chuck 1. The end of the horizontal telescopic sleeve 8 is fixed to the four-axis machining center via the horizontal fixing plate 9. The vertical fixing plate 11 at the bottom of the vertical telescopic sleeve 10 is inserted into the assembly guide groove 14 via the assembly guide rail 12. The fixing holes on the surface of the vertical fixing plate 11 and the splicing seat 13 coincide. The vertical fixing plate 11 can be fixed to the splicing seat 13 with bolts. When the pneumatic rotary chuck 1 rotates, the rotating ring 5 can be limited by the fixing bracket 7 to prevent the rotating ring 5 from rotating with the pneumatic rotary chuck 1. The horizontal telescopic sleeve 8 and the vertical telescopic sleeve 10 are respectively inserted into the horizontal and vertical sides of the fixing bracket 7. The lengths of the horizontal and vertical sides of the fixing bracket 7 can be adjusted to limit the rotation of the rotating ring 5 of different models of pneumatic rotary chuck 1.

[0031] In this embodiment, as Figure 3 As shown, a splicing seat 13 is welded to the upper surface of the rotating ring 5, and an assembly guide groove 14 is provided in the middle of the surface of the splicing seat 13. A vertical fixing plate 11 is welded to the bottom of the vertical telescopic sleeve 10. An assembly guide rail 12 is provided on the lower surface of the vertical fixing plate 11. The assembly guide rail 12 is inserted into the assembly guide groove 14. Fixing holes are provided through the surfaces of both the splicing seat 13 and the vertical fixing plate 11. After the assembly guide rail 12 is inserted into the assembly guide groove 14, the fixing holes on the surfaces of the splicing seat 13 and the vertical fixing plate 11 coincide. A horizontal fixing plate 9 is welded to the end of the horizontal telescopic sleeve 8. The horizontal fixing plate 9 is fixed to the lead screw machining center by bolts.

[0032] It should be noted that the end of the horizontal telescopic sleeve 8 is fixed to the four-axis machining center by the horizontal fixing plate 9, while the vertical fixing plate 11 at the bottom of the vertical telescopic sleeve 10 is connected to the assembly guide groove 14 by the assembly guide rail 12. The fixing holes on the surface of the vertical fixing plate 11 and the splicing seat 13 coincide, and the vertical fixing plate 11 can be fixed to the splicing seat 13 by bolts, which can realize the rapid installation of the fixed structure.

[0033] In this embodiment, as Figure 3 As shown, both the horizontal telescopic sleeve 8 and the vertical telescopic sleeve 10 are threaded with locking screws, and the locking screws abut against the surface of the fixed bracket 7.

[0034] It should be noted that the horizontal telescopic sleeve 8 and the vertical telescopic sleeve 10 can be locked to the fixed bracket 7 after adjustment by locking screws.

[0035] In this embodiment, as Figure 4As shown, a connecting bracket 15 is welded to the side wall surface of the vertical telescopic sleeve 10. The cross-section of the connecting bracket 15 is a right-angle structure. A cleaning brush 16 is fixed to the bottom of the vertical side of the connecting bracket 15 by bolts. The cleaning brush 16 is in contact with the telescopic part on the surface of the pneumatic rotary chuck 1.

[0036] It should be noted that the cleaning brush 16 is fixed to the surface of the vertical telescopic sleeve 10 by the connecting bracket 15. The cleaning brush 16 is attached to the pneumatic rotary chuck 1. When the pneumatic rotary chuck 1 rotates, the cleaning brush 16 can clean the surface, preventing the shavings from falling onto the pneumatic rotary chuck 1 and jamming the extension and retraction of the clamping cylinder 3, making the use more reliable.

[0037] The working principle and usage process of this utility model are as follows: The pneumatic rotary chuck 1 is fixed to the rotary table of the four-axis machining center via the mounting plate 2. The surface of the rotating ring 5 is connected to the air pipe via the air pipe connector 6. The rotating ring 5 rotates and has the surface of the pneumatic rotary chuck 1. The end of the horizontal telescopic sleeve 8 is fixed to the four-axis machining center via the horizontal fixing plate 9. The vertical fixing plate 11 at the bottom of the vertical telescopic sleeve 10 is inserted into the assembly guide groove 14 via the assembly guide rail 12. The fixing holes on the surface of the vertical fixing plate 11 and the splicing seat 13 coincide. The vertical fixing plate 11 can be fixed to the splicing seat 13 with bolts. When the pneumatic rotary chuck 1 rotates, it can be fixed to the surface of the splicing seat 13 via the fixing bracket 7. The rotating ring 5 is limited to prevent it from rotating with the pneumatic rotary chuck 1. The horizontal telescopic sleeve 8 and the vertical telescopic sleeve 10 are respectively inserted into the horizontal and vertical sides of the fixed bracket 7, allowing the length of the horizontal and vertical sides of the fixed bracket 7 to be adjusted to limit the rotation of the rotating ring 5 for different models of pneumatic rotary chuck 1. The cleaning brush 16 is fixed to the surface of the vertical telescopic sleeve 10 through the connecting bracket 15. The cleaning brush 16 is attached to the pneumatic rotary chuck 1, and the surface can be cleaned by the cleaning brush 16 when the pneumatic rotary chuck 1 rotates, preventing the shavings from falling onto the pneumatic rotary chuck 1 and jamming the extension and retraction of the clamping cylinder 3, making the use more reliable.

[0038] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A quick-change pneumatic fixture for a four-axis machining center, comprising a pneumatic rotary chuck (1), a mounting plate (2), a clamping cylinder (3), and a workpiece chuck (4), characterized in that, The pneumatic rotary chuck (1) is welded with a mounting plate (2), which is used to mount the pneumatic rotary chuck (1) on the rotary table of the four-axis machining center. The pneumatic rotary chuck (1) is equipped with a clamping cylinder (3) and a workpiece chuck (4). The clamping cylinder (3) has a rotating ring (5) on its surface, and the rotating ring (5) has an air pipe connector (6) on its side wall. The air pipe connector (6) is arranged symmetrically. A fixed bracket (7) is movably provided above the rotating ring (5). The cross-section of the fixed bracket (7) is a right-angle structure. A horizontal telescopic sleeve (8) is movably provided on the horizontal side surface of the fixed bracket (7). A vertical telescopic sleeve (10) is movably provided on the vertical side surface of the fixed bracket (7). The vertical telescopic sleeve (10) and the horizontal telescopic sleeve (8) are used to adjust the length of the horizontal and vertical sides of the fixed bracket (7).

2. The quick-change pneumatic fixture for a four-axis machining center according to claim 1, characterized in that, The upper surface of the rotating ring (5) is welded with a splicing seat (13), and a splicing guide groove (14) is provided in the middle of the surface of the splicing seat (13).

3. A quick-change pneumatic fixture for a four-axis machining center according to claim 2, characterized in that, The bottom of the vertical telescopic sleeve (10) is welded with a vertical fixing plate (11), and the lower surface of the vertical fixing plate (11) is provided with an assembly guide rail (12), which is inserted into the assembly guide groove (14).

4. A quick-change pneumatic fixture for a four-axis machining center according to claim 3, characterized in that, The splicing base (13) and the vertical fixing plate (11) are both provided with fixing holes. After the splicing guide rail (12) is inserted into the splicing guide groove (14), the fixing holes on the surfaces of the splicing base (13) and the vertical fixing plate (11) coincide.

5. A quick-change pneumatic fixture for a four-axis machining center according to claim 4, characterized in that, The transverse telescopic sleeve (8) is welded to a transverse fixing plate (9) at its end, and the transverse fixing plate (9) is fixed to the screw machining center by bolts.

6. A quick-change pneumatic fixture for a four-axis machining center according to claim 5, characterized in that, Both the horizontal telescopic sleeve (8) and the vertical telescopic sleeve (10) are threaded with locking screws, and the locking screws abut against the surface of the fixed bracket (7).

7. A quick-change pneumatic fixture for a four-axis machining center according to claim 6, characterized in that, The vertical telescopic sleeve (10) has a connecting bracket (15) welded to its side wall surface, and the cross-section of the connecting bracket (15) is a right-angle structure.

8. A quick-change pneumatic fixture for a four-axis machining center according to claim 7, characterized in that, The bottom of the vertical side of the connecting bracket (15) is fixed with a cleaning brush (16) by bolts. The cleaning brush (16) is in contact with the telescopic part of the surface of the pneumatic rotary chuck (1).

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