Double-center mechanism for aluminum alloy machining

Abstract

The utility model belongs to the technical field of double-center mechanisms, and particularly discloses a double-center mechanism for aluminum alloy machining, which comprises a machine body, a center body is arranged on the machine body, a sliding groove extending to the outside of the center body is arranged in the center body, and a lifting pin extending to the outside of the center body is slidably connected in the sliding groove. A cross-shaped moving groove extending to the exterior of the center body is formed in the center body, a cross-shaped moving frame extending to the exterior of the center body is slidably connected to the interior of the cross-shaped moving groove, and the bottom of the cross-shaped moving frame is fixedly connected with the outer surface of the lifting pin. The lifting pin is driven by the cross-shaped moving frame to move left and right, after the lifting pin moves to a proper position, a worker loosens a power rod, a first spring resets to enable a positioning block to slide into a positioning groove, the positions of the cross-shaped moving frame and the lifting pin are fixed, and the lifting pin can more smoothly position and fix a workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of double center mechanisms, in particular to a double center mechanism for aluminum alloy processing. Background Art

[0002] The center is a commonly used machine tool component in mechanical processing. It is a centering and clamping device for shafts. It has the characteristics of small outer diameter, fewer interference cutters, suitable for high speed and moderate cutting.

[0003] After searching, the existing Chinese patent announcement number is: CN213288695U, which provides a double center mechanism for aluminum alloy processing, including a center body, a positioning pin and a locking bolt. The center body is provided with a pin hole and a bolt hole, wherein the pin hole is arranged in a form in which its axis deviates from the central axis of the center body, and the bolt hole opened radially along the center body is connected with the pin hole. The use of this mechanism can shorten the length of the workpiece raw material and reduce the raw material cost.

[0004] Although the above patent can shorten the length of the workpiece material, the above device still has the following problems: when the position of the locating pin needs to be adjusted during use of the device, it is necessary to use professional tools to tighten the locking bolt multiple times to fix and release the position of the locating pin, which makes the position adjustment of the locating pin more complicated and slows down the staff's adjustment of the position of the locating pin, which reduces the convenience of the staff in using the device to a certain extent. In view of the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content

[0005] The purpose of the utility model is to provide a double center mechanism for aluminum alloy processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double center mechanism for aluminum alloy processing, comprising a machine body, on which a center body is arranged, a slide groove extending to the outside of the center body is provided inside the center body, a top pin extending to the outside of the center body is slidably connected inside the slide groove, a cross-shaped movable groove extending to the outside of the center body is provided inside the center body, a cross-shaped movable groove is slidably connected inside the cross-shaped movable groove to a cross movable frame extending to the outside of the center body, the bottom of the cross movable frame is fixedly connected to the outer surface of the top pin, a transmission groove is provided inside the cross movable frame, a power rod extending to the outside of the cross movable frame is slidably connected inside the transmission groove, two symmetrical positioning blocks are fixedly connected to the top of the longitudinal rod of the power rod, and a positioning groove connected to the inside of the center body is provided.

[0007] Preferably, the cross-shaped moving groove and the sliding groove are internally connected, and the cross-sections of the power rod and the transmission groove are both inverted T-shaped.

[0008] Preferably, the side of the positioning block close to the positioning slot slides through the interior of the cross movable frame and extends to the interior of the positioning slot, and the positioning block is plugged into the interior of the positioning slot.

[0009] Preferably, the cross-sections of the cross-shaped movable groove and the cross-shaped movable frame are both cross-shaped.

[0010] Preferably, a first spring is fixedly connected to the bottom of the power rod, and a bottom end of the first spring is fixedly connected to the inner wall of the transmission groove.

[0011] Preferably, a fixed block is fixedly connected to one side of the cross movable frame, a sliding groove is opened inside the fixed block, the sliding groove is slidably connected to a limit frame extending to the outside of the sliding groove, the cross-section of the limit frame is a U-shape, a protective frame is fixedly connected to the inside of the limit frame, a second spring is fixedly connected to one side of the limit frame, and the end of the second spring away from the limit frame is fixedly connected to the inner wall of the sliding groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The double center mechanism for aluminum alloy processing drives the ejector pin to move left and right through the cross moving frame. When the ejector pin moves to the appropriate position, the staff releases the power rod, and the first spring resets the positioning block to slide into the positioning groove, and the position of the cross moving frame and the ejector pin is fixed, so that the ejector pin can position and fix the workpiece more smoothly, and at the same time make the position adjustment of the ejector pin more convenient, so that the staff can more conveniently position and fix workpieces of different lengths by adjusting the position of the ejector pin.

[0014] 2. The double-top mechanism for aluminum alloy processing can cover and protect the power rod through a protective frame, which can reduce the possibility of workers accidentally touching the power rod to a certain extent, and at the same time make the top fixation of the cross movable frame of the device more stable and firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a double center mechanism for aluminum alloy processing according to the utility model;

[0016] Figure 2 This is a schematic structural diagram of the cutaway view of the top body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the top body of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the cross movable frame of the utility model;

[0019] Figure 5 For this utility model Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 6 It is a structural schematic diagram of the cross-shaped movable groove of the utility model.

[0021] In the figure: 1. body; 2. top body; 3. cross-shaped moving groove; 4. slide groove; 5. ejector pin; 6. cross moving frame; 7. positioning block; 8. positioning groove; 9. transmission groove; 10. first spring; 11. power rod; 12. protection frame; 13. limit frame; 14. fixed block; 15. second spring; 16. slide groove. DETAILED DESCRIPTION

[0022] See also Figure 1-6 The utility model provides a technical solution: a double center mechanism for aluminum alloy processing, including a machine body 1, on which a center body 2 is arranged, the machine body 1 is an existing structure, and no further elaboration is made here, the center body 2 can tighten the workpiece, the interior of the center body 2 is provided with a slide groove 4 extending to the outside of the center body 2, the interior of the slide groove 4 is slidably connected with a top pin 5 extending to the outside of the center body 2, and the top pin 5 can also tighten and fix the workpiece, the interior of the center body 2 is provided with a cross-shaped moving groove 3 extending to the outside of the center body 2, the interior of the cross-shaped moving groove 3 is slidably connected with a cross moving frame 6 extending to the outside of the center body 2, the cross-shaped moving groove 3 is internally connected with the interior of the slide groove 4, the bottom of the cross moving frame 6 It is fixedly connected to the outer surface of the ejector pin 5, and a transmission groove 9 is opened inside the cross movable frame 6. The transmission groove 9 is slidably connected inside with a power rod 11 extending to the outside of the cross movable frame 6. The cross-sections of the power rod 11 and the transmission groove 9 are both inverted T-shaped. Two symmetrical positioning blocks 7 are fixedly connected to the top of the longitudinal rod of the power rod 11. A positioning groove 8 connected to the inside of the cross movable groove 3 is opened inside the top body 2. There are multiple positioning grooves 8, and multiple positioning grooves 8 are equidistantly arranged on the top body 2. The side of the positioning block 7 close to the positioning groove 8 slides through the inside of the cross movable frame 6 and extends to the inside of the positioning groove 8. The positioning block 7 is plugged into the inside of the positioning groove 8, and the positioning block 7 can slide in and out of the inside of the positioning groove 8.

[0023] Furthermore, the cross-sections of the cross-shaped moving groove 3 and the cross-shaped moving frame 6 are both cross-shaped.

[0024] Furthermore, a first spring 10 is fixedly connected to the bottom of the power rod 11 , and a bottom end of the first spring 10 is fixedly connected to an inner wall of the transmission groove 9 , so that the first spring 10 can be compressed and reset by moving the power rod 11 .

[0025] The staff drives the power rod 11 to move the positioning groove 8 downward, so that the positioning block 7 slides out of the interior of the positioning groove 8, compresses the first spring 10, and realizes the release of the fixation of the cross movable frame 6 and the top pin 5, so that the staff can drive the top pin 5 to move left and right through the cross movable frame 6. When the top pin 5 moves to the appropriate position, the staff releases the power rod 11, and the first spring 10 resets to make the positioning block 7 slide into the interior of the positioning groove 8, and realizes the position fixation of the cross movable frame 6 and the top pin 5, so that the top pin 5 can more smoothly position and fix the workpiece, and at the same time make the position adjustment of the top pin 5 more convenient, so that the staff can more conveniently position and fix workpieces of different lengths by adjusting the position of the top pin 5.

[0026] Furthermore, a fixed block 14 is fixedly connected to one side of the cross movable frame 6, a sliding groove 16 is opened inside the fixed block 14, the sliding groove 16 is internally slidably connected to a limit frame 13 extending to the outside of the sliding groove 16, the cross-section of the limit frame 13 is a U-shape, and a protective frame 12 is fixedly connected inside the limit frame 13. The protective frame 12 can cover and protect the power rod 11, thereby reducing the possibility of staff accidentally touching the power rod 11 to a certain extent, and at the same time making the top fixation of the cross movable frame 6 of the device more stable and firm.

[0027] Furthermore, a second spring 15 is fixedly connected to one side of the limit frame 13 , and one end of the second spring 15 away from the limit frame 13 is fixedly connected to the inner wall of the sliding groove 16 , so that the second spring 15 can be stretched and reset by moving the limit frame 13 .

[0028] Working principle: For this type of double-center mechanism for aluminum alloy processing, the staff first drives the power rod 11 to drive the positioning groove 8 to move downward, so that the positioning block 7 slides out of the positioning groove 8, compresses the first spring 10, and realizes the release of the fixation of the cross movable frame 6 and the top pin 5, so that the staff can drive the top pin 5 to move left and right through the cross movable frame 6. When the top pin 5 moves to the appropriate position, the staff releases the power rod 11, and the first spring 10 resets to make the positioning block 7 slide into the interior of the positioning groove 8, and realizes the position fixation of the cross movable frame 6 and the top pin 5, so that the top pin 5 can more smoothly position and fix the workpiece, and at the same time make the position adjustment of the top pin 5 more convenient. The power rod 11 can be covered and protected by the protective frame 12, which can reduce the situation where the staff accidentally touches the power rod 11 to a certain extent, and at the same time make the top fixation of the cross movable frame 6 of the device more stable and firm.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double center mechanism for aluminum alloy processing, comprising a machine body (1), on which a center body (2) is arranged, characterized in that: A chute (4) extending to the outside of the center body (2) is formed inside the center body (2). A top pin (5) extending to the outside of the center body (2) is slidably connected inside the chute (4). A cross-shaped moving groove (3) extending to the outside of the center body (2) is formed inside the center body (2). A cross-shaped moving frame (6) extending to the outside of the center body (2) is slidably connected inside the cross-shaped moving groove (3). The bottom of the cross-shaped moving frame (6) is fixedly connected to the outer surface of the top pin (5). A transmission groove (9) is formed inside the cross-shaped moving frame (6). A power rod (11) extending to the outside of the cross-shaped moving frame (6) is slidably connected inside the transmission groove (9). Two symmetric positioning blocks (7) are fixedly connected to the top of the longitudinal rod of the power rod (11). A positioning groove (8) communicating with the inside of the cross-shaped moving groove (3) is formed inside the center body (2).

2. The double center mechanism for aluminum alloy processing according to claim 1, characterized in that: The cross-shaped moving groove (3) and the chute (4) communicate with each other inside. The cross-sections of the power rod (11) and the transmission groove (9) are both inverted T-shaped.

3. The double center mechanism for aluminum alloy processing according to claim 1, characterized in that: One side of the positioning block (7) close to the positioning groove (8) slidably penetrates inside the cross-shaped moving frame (6) and extends into the inside of the positioning groove (8). The positioning block (7) is inserted into the inside of the positioning groove (8).

4. The double center mechanism for aluminum alloy processing according to claim 1, characterized in that: The cross-sections of the cross-shaped moving groove (3) and the cross-shaped moving frame (6) are both cross-shaped.

5. The double center mechanism for aluminum alloy processing according to claim 1, characterized in that: A first spring (10) is fixedly connected to the bottom of the power rod (11). The bottom end of the first spring (10) is fixedly connected to the inner wall of the transmission groove (9).

6. The double center mechanism for aluminum alloy processing according to claim 1, characterized in that: A fixed block (14) is fixedly connected to one side of the cross-shaped moving frame (6).

7. The double center mechanism for aluminum alloy processing according to claim 6, characterized in that: A sliding groove (16) is formed inside the fixed block (14). A limiting frame (13) extending to the outside of the sliding groove (16) is slidably connected inside the sliding groove (16). The cross-section of the limiting frame (13) is C-shaped. A protective frame (12) is fixedly connected inside the limiting frame (13).

8. The double center mechanism for aluminum alloy processing according to claim 7, characterized in that: A second spring (15) is fixedly connected to one side of the limiting frame (13). The end of the second spring (15) away from the limiting frame (13) is fixedly connected to the inner wall of the sliding groove (16).

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