A pneumatic fixture for fixing a rotating body

Abstract

This utility model relates to the field of rotary body fixture technology and discloses a pneumatic fixture for fixing a rotary body. Several slide blocks are respectively installed inside several sliding grooves. A dual-axis cylinder is fixedly connected to one side of each slide block. A clamping block is installed on the double piston rod of the dual-axis cylinder. Several fixing bolts are threadedly connected to the other side of the turntable. One end of each fixing bolt abuts against one side of a slide block. A connecting component is provided inside the clamping block, and an adjusting component is installed on the outer side of the other end of the rotating shaft. This utility model uses the double piston rod of the dual-axis cylinder to move the clamping block to the outside of the rotary body and fix it there. Then, the piston rod of the fixing cylinder moves the fixing plate to abut against the other end of the rotary body, thus completing the clamping and fixing of the rotary body. Furthermore, a worm gear drives a worm wheel to rotate, which in turn drives the turntable to rotate via the rotating shaft, adjusting the machining position of the rotary body. This eliminates the need for repeated clamping and improves the machining accuracy of the rotary body.

Description

Technical Field

[0001] This utility model relates to the field of rotary jig technology, specifically a pneumatic jig for fixing a rotary body. Background Technology

[0002] Imagine two points at the two ends of an object, and a line connecting the two points passes through the object. The object rotates around this line as its center. When it rotates, each part of the object has the same shape when it reaches a fixed position. This is called a standard solid of revolution.

[0003] While traditional three-jaw chucks can fix rotating bodies, they require disassembling the workpiece for adjustment when machining features in multiple positions, which can easily lead to errors. Moreover, when changing to rotating bodies of different shapes, the entire fixture module needs to be replaced, or even the jaws need to be re-customized, which increases costs. Therefore, a pneumatic fixture for fixing rotating bodies is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic fixture for fixing rotating bodies, in order to solve the problems mentioned in the background art. Although the traditional three-jaw chuck can fix rotating bodies, it is easy to cause errors when processing multi-position features. Moreover, when changing rotating bodies of different shapes, the entire fixture module needs to be replaced, or even the jaws need to be re-customized, which increases the cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic fixture for fixing a rotating body, comprising...

[0006] A base, wherein a first support seat is mounted on one top end of the base, and a fixing component for clamping the rotating body is mounted on the first support seat;

[0007] The fixing assembly includes a rotating shaft, a turntable, and several sliding blocks. The rotating shaft is movably connected to a first support base. The turntable is fixedly connected to one end of the rotating shaft. Several sliding grooves are formed on one side of the turntable. Several sliding blocks are respectively installed inside the sliding grooves. A dual-axis cylinder is fixedly connected to one side of the sliding blocks. Clamping blocks are installed on the dual piston rods of the dual-axis cylinder. Several fixing bolts are threadedly connected to the other side of the turntable. One end of the fixing bolts abuts against one side of the sliding block. A connecting assembly is provided inside the clamping block. An adjusting assembly is installed on the outer side of the other end of the rotating shaft.

[0008] Preferably, the connecting assembly includes two limiting posts, a telescopic spring, and a top post. Two slots are provided on one side of the clamping block, and a guide groove is provided inside the clamping block. The two limiting posts are slidably connected inside the guide groove. The telescopic spring is fixedly connected to the opposite end of the two limiting posts, and the top post is threadedly connected to the top of the clamping block.

[0009] Preferably, one end of the top post is inserted into the guide groove, and one end of the top post is tapered.

[0010] Preferably, the guide groove is connected to the two slots, and the opposite ends of the two limiting posts are provided with arc grooves.

[0011] Preferably, the dual piston rods of the aforementioned dual-axis cylinder are provided with limiting grooves, and the dual piston rods of the dual-axis cylinder are respectively inserted into the interior of two slots, with the limiting post abutting against the interior of the limiting groove.

[0012] Preferably, the aforementioned adjusting assembly includes a housing, a worm gear, and a worm. The housing is fixedly connected to one side of the first support and sleeved on the outside of the rotating shaft. The worm gear is fixedly connected to the other end of the rotating shaft. The worm is rotatably connected to the inside of the housing and meshes with the outside of the worm gear. One end of the worm extends to the outside of the housing and is fixedly connected to a rotating block.

[0013] Preferably, a second support is fixedly connected to the other end of the top of the aforementioned base. A fixing cylinder is installed on the second support, and the piston rod of the fixing cylinder passes through one side of the second support and is rotatably connected to a fixing plate.

[0014] Preferably, an air slip ring is fixedly connected to the outer side of the aforementioned rotating shaft, and one end of the air slip ring is fixedly connected to the other side of the first support base.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0016] 1. This utility model uses the double piston rods of a dual-axis cylinder to move the clamping block to the outside of the rotating body and fix it thereon. Then, the piston rod of the fixing cylinder moves the fixing plate and abuts against the other end of the rotating body, thus completing the clamping and fixing of the rotating body. Moreover, the worm gear drives the worm wheel to rotate, and the worm wheel drives the turntable to rotate through the rotating shaft, so as to adjust the machining position of the rotating body. There is no need for repeated clamping, which improves the machining accuracy of the rotating body.

[0017] 2. This utility model allows the top column to be loosened by rotating it, so that one end of the top column is disengaged from the opposite end of the two limiting columns. At this time, the limiting columns will move and reset under the action of the tension of the telescopic spring, so that the limiting columns are disengaged from the upper limit groove of the double piston rod of the double-axis cylinder. The clamping block can then be disassembled and replaced, which is convenient for processing different types of rotating bodies and reduces the processing cost. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the slide structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the box of this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the clamping block of this utility model;

[0023] Figure 5 This is a schematic diagram of the twin-shaft cylinder structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Base; 2. First support seat; 3. Rotating shaft; 4. Turntable; 5. Slide groove; 6. Slide seat; 7. Dual-axis cylinder; 8. Clamping block; 9. Slot; 10. Guide groove; 11. Limiting post; 12. Telescopic spring; 13. Top post; 14. Limiting groove; 15. Housing; 16. Worm gear; 17. Worm; 18. Second support seat; 19. Fixed cylinder; 20. Fixed plate; 21. Air slip ring; 22. Fixing bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0027] Example

[0028] Please see Figure 1-5 This utility model provides a technical solution: a pneumatic fixture for fixing a rotating body, including a base 1, a first support seat 2 installed at one top end of the base 1, and a fixing component for clamping the rotating body installed on the first support seat 2.

[0029] By setting a fixing component, one end of the rotating body can be fixed quickly, and the maintenance of the fixture is convenient. The fixing component includes a rotating shaft 3, a turntable 4 and several slides 6. The rotating shaft 3 is movably connected to the first support base 2. The turntable 4 is fixedly connected to one end of the rotating shaft 3. Several slide grooves 5 are opened on one side of the turntable 4. Several slides 6 are installed in the interior of several slide grooves 5. A double-axis cylinder 7 is fixedly connected to one side of several slides 6. Clamping blocks 8 are installed on the double piston rods of the double-axis cylinder 7. One end of the rotating body is placed inside the multiple clamping blocks 8. The double piston rods of the double-axis cylinder 7 drive the clamping blocks 8 to move to the outside of the rotating body and fix it.

[0030] On the other side of the turntable 4, several fixing bolts 22 are connected by threads. One end of the fixing bolts 22 abuts against one side of the slide block 6. When it is necessary to disassemble and maintain the dual-axis cylinder 7, the fixing bolts 22 can be loosened so that one end of the fixing bolts 22 is disengaged from one side of the slide block 6, and the dual-axis cylinder 7 on the slide block 6 can be disassembled for easy maintenance. Moreover, by moving the position of the slide block 6 in the slide groove 5, the position of the dual-axis cylinder 7 can be adjusted, and the rotating body of different dimensions can be processed, improving the versatility of the fixture. The clamping block 8 is equipped with a connecting component inside, and an adjusting component is installed on the outer side of the other end of the rotating shaft 3.

[0031] By setting up a connecting component, the clamping block 8 can be easily replaced to facilitate the processing of different types of rotating bodies, thus reducing processing costs. The connecting component includes two limiting posts 11, a telescopic spring 12, and a top post 13. Two slots 9 are provided on one side of the clamping block 8, and a guide groove 10 is provided inside the clamping block 8. Both limiting posts 11 are slidably connected inside the guide groove 10. The telescopic spring 12 is fixedly connected to the opposite end of the two limiting posts 11. To prevent the two limiting posts 11 from shifting in length, the telescopic spring 12 can be fixed by a connecting block. The spring 12 is a consumable part and needs to be maintained and replaced regularly. The top post 13 is connected to the top of the clamping block 8 by a thread. The double piston rods of the dual-axis cylinder 7 have limit grooves 14. The double piston rods of the dual-axis cylinder 7 are inserted into the two slots 9 respectively. The limit post 11 abuts against the inside of the limit groove 14. By loosening the top post 13, one end of the top post 13 is disengaged from the opposite end of the two limit posts 11. At this time, the limit post 11 will move and reset under the action of the tension of the spring 12, so that the limit post 11 is disengaged from the limit groove 14 of the double piston rods of the dual-axis cylinder 7, and the clamping block 8 can be disassembled and replaced.

[0032] To facilitate the installation of the clamping block 8, one end of the top post 13 is inserted into the guide groove 10. One end of the top post 13 is tapered. The guide groove 10 is connected to two slots 9. The opposite ends of the two limiting posts 11 are provided with arc grooves. When installing a new clamping block 8, the double piston rods of the dual-axis cylinder 7 are inserted into the two slots 9 respectively, and then the top post 13 is tightened so that one end of the top post 13 abuts against the arc groove of the limiting post 11 and pushes one end of the limiting post 11 to move into the limiting groove 14, thus completing the fixing of the clamping block 8. It is simple and quick.

[0033] By setting an adjustment component, the machining of the rotating body at different positions can be conveniently performed, improving machining accuracy. The adjustment component includes a housing 15, a worm gear 16, and a worm 17. The housing 15 is fixedly connected to one side of the first support 2 and sleeved on the outside of the rotating shaft 3. The worm gear 16 is fixedly connected to the other end of the rotating shaft 3. The worm 17 is rotatably connected to the inside of the housing 15 and meshes with the outside of the worm gear 16. The worm gear 16 and the worm 17 require regular maintenance and lubrication. One end of the worm 17 extends to the outside of the housing 15 and is fixedly connected to a rotating block. By rotating the rotating block, the rotating block drives the worm gear 16 to rotate via the worm 17. The worm gear 16 then drives the turntable 4 to rotate via the rotating shaft 3, adjusting the machining position of the rotating body. This eliminates the need for repeated clamping, improving the machining accuracy of the rotating body. Furthermore, the cooperation between the worm 17 and the worm gear 16 gives the fixture a self-locking function, preventing positional deviation during the machining of the rotating body.

[0034] To fix the rotating body, a second support base 18 is fixedly connected to the other end of the top of the base 1. A fixing cylinder 19 is installed on the second support base 18. The piston rod of the fixing cylinder 19 passes through one side of the second support base 18 and is rotatably connected to a fixing plate 20. After one end of the rotating body is fixed, the piston rod of the fixing cylinder 19 drives the fixing plate 20 to move and abut against the other end of the rotating body, thus completing the clamping and fixing of the rotating body, and the rotating body can then be processed.

[0035] A slip ring 21 is fixedly connected to the outer side of the rotating shaft 3. One end of the slip ring 21 is fixedly connected to the other side of the first support seat 2. By setting the slip ring 21, the air supply pipes of multiple dual-shaft cylinders 7 can be prevented from getting tangled when the turntable 4 rotates to adjust the processing position of the rotating body, thus facilitating the processing of the rotating body.

[0036] The working principle or structural principle is as follows: When machining a rotating body, one end of the rotating body is placed inside multiple clamping blocks 8. The solenoid valve of the dual-axis cylinder 7 is activated by the switch group. The double piston rod of the dual-axis cylinder 7 drives the clamping block 8 to move to the outside of the rotating body and fix it. Then, the solenoid valve of the fixing cylinder 19 is activated by the switch group. The piston rod of the fixing cylinder 19 drives the fixing plate 20 to move and abut against the other end of the rotating body, thus completing the clamping and fixing of the rotating body, and the rotating body can then be machined. When machining different positions of the rotating body is required, the rotating block is rotated. The rotating block drives the worm wheel 16 to rotate through the worm gear 17. The worm wheel 16 drives the turntable 4 to rotate through the rotating shaft 3, thereby adjusting the machining position of the rotating body. Repeated clamping is not required, which improves the machining accuracy of the rotating body. Moreover, the cooperation between the worm gear 17 and the worm wheel 16 gives the fixture a self-locking function, preventing the position of the rotating body from shifting during machining.

[0037] When machining different types of rotating bodies, by loosening the top post 13, one end of the top post 13 disengages from the opposite ends of the two limiting posts 11. At this time, the limiting posts 11 will move and reset under the tension of the telescopic spring 12, so that the limiting posts 11 disengage from the upper limit groove 14 of the double piston rod of the dual-axis cylinder 7. The clamping block 8 can then be disassembled and replaced to facilitate the machining of different types of rotating bodies. When installing a new clamping block 8, the double piston rods of the dual-axis cylinder 7 are inserted into the two slots 9 respectively, and then the top post 13 is tightened so that one end of the top post 13 abuts against the arc groove of the limiting post 11 and pushes one end of the limiting post 11 to move into the interior of the limiting groove 14, thus completing the fixing of the clamping block 8. It is simple and quick.

[0038] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A pneumatic fixture for fixing a rotating body, characterized in that, include A base (1) is provided with a first support seat (2) at one top end of the base (1), and a fixing component for clamping the rotating body is provided on the first support seat (2). The fixing assembly includes a rotating shaft (3), a turntable (4), and several slides (6). The rotating shaft (3) is movably connected to the first support base (2). The turntable (4) is fixedly connected to one end of the rotating shaft (3). Several slide grooves (5) are opened on one side of the turntable (4). Several slides (6) are respectively installed inside the several slide grooves (5). A double-axis cylinder (7) is fixedly connected to one side of the several slides (6). A clamping block (8) is installed on the double piston rod of the double-axis cylinder (7). Several fixing bolts (22) are threadedly connected to the other side of the turntable (4). One end of the fixing bolt (22) abuts against one side of the slide (6). A connecting assembly is provided inside the clamping block (8). An adjustment assembly is installed on the outer side of the other end of the rotating shaft (3).

2. A pneumatic fixture for fixing a rotating body according to claim 1, characterized in that, The connecting assembly includes two limiting posts (11), a telescopic spring (12), and a top post (13). Two slots (9) are provided on one side of the clamping block (8). A guide groove (10) is provided inside the clamping block (8). The two limiting posts (11) are slidably connected to the inside of the guide groove (10). The telescopic spring (12) is fixedly connected to the opposite end of the two limiting posts (11). The top post (13) is threadedly connected to the top of the clamping block (8).

3. A pneumatic fixture for fixing a rotating body according to claim 2, characterized in that, One end of the top post (13) is inserted into the inside of the guide groove (10), and one end of the top post (13) is conical.

4. A pneumatic fixture for fixing a rotating body according to claim 2, characterized in that, The guide groove (10) is connected to the two slots (9), and the two limiting posts (11) are provided with arc grooves at opposite ends.

5. A pneumatic fixture for fixing a rotating body according to claim 2, characterized in that, The dual piston rods of the dual-axis cylinder (7) are provided with limiting grooves (14), and the dual piston rods of the dual-axis cylinder (7) are respectively inserted into the interior of two slots (9), and the limiting post (11) abuts against the interior of the limiting groove (14).

6. A pneumatic fixture for fixing a rotating body according to claim 1, characterized in that, The adjustment assembly includes a housing (15), a worm gear (16), and a worm (17). The housing (15) is fixedly connected to one side of the first support base (2) and sleeved on the outside of the rotating shaft (3). The worm gear (16) is fixedly connected to the other end of the rotating shaft (3). The worm (17) is rotatably connected to the inside of the housing (15). The worm (17) is meshed with the outside of the worm gear (16). One end of the worm (17) extends to the outside of the housing (15) and is fixedly connected to a rotating block.

7. A pneumatic fixture for fixing a rotating body according to claim 1, characterized in that, The other end of the top of the base (1) is fixedly connected to a second support seat (18), and a fixed cylinder (19) is installed on the second support seat (18). The piston rod of the fixed cylinder (19) passes through one side of the second support seat (18) and is rotatably connected to a fixed plate (20).

8. A pneumatic fixture for fixing a rotating body according to claim 1, characterized in that, An air slip ring (21) is fixedly connected to the outside of the rotating shaft (3), and one end of the air slip ring (21) is fixedly connected to the other side of the first support seat (2).

Images