A quick positioning tool for machining a planetary carrier

Abstract

The utility model provides a kind of for processing planet carrier's quick positioning tool, it is related to planet carrier processing technical field, the utility model includes workbench, the surface of workbench is equipped with chuck, wherein the surface of chuck is equipped with three evenly circumferentially distributed clamping jaw, the chuck is limited fixed to planet carrier body by clamping jaw, the surface of chuck is equipped with adjusting device, wherein adjusting device is adjusted to change the angle of planet carrier body on chuck by roller and adjusting band, the adjusting device includes mounting bracket, wherein mounting bracket is fixedly connected with the arc surface of chuck, the inner wall of mounting bracket is slidably connected with three evenly circumferentially distributed mounting disc, the utility model can quickly and effectively adjust and change the angle of planet carrier body when using quick positioning tool to process and limit planet carrier body, to be more convenient subsequent processing operation, improve the use functionality of positioning tool, also improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of planetary carrier machining technology, and in particular to a quick positioning tool for machining planetary carriers. Background Technology

[0002] In planetary carrier machining, rapid positioning fixtures are the core auxiliary equipment for achieving efficient and high-precision mass production. As a key component of the planetary gear transmission system (connecting the planetary gear shaft and the output end, bearing the transmission of force and coordination of motion), the machining accuracy of the planetary carrier (such as the position accuracy of the planetary gear holes, the parallelism of the end faces, etc.) directly affects the transmission efficiency and lifespan. The core objective of rapid positioning fixtures is to complete the precise positioning and firm clamping of the planetary carrier in a very short time, reduce non-machining time, and at the same time ensure positioning accuracy and machining stability.

[0003] Three-jaw chucks are a commonly used quick positioning fixture. In use, the planetary carrier is placed on the surface of the chuck, and the movement of the chuck is started through a pre-set program, so that the three chucks move closer to the planetary carrier until they come into contact and press, thereby clamping and fixing it. Then, the planetary carrier is subjected to machining operations such as drilling. However, in actual use, it has been found that some existing three-jaw chucks have simple structures and it is difficult to adjust the horizontal angle of the planetary carrier on the chuck, which affects the machining efficiency and limits the use of positioning fixtures. Utility Model Content

[0004] The technical problem this invention aims to solve is that some existing three-jaw chucks have simple structures, making it difficult to adjust the horizontal angle of the planetary carrier on the chuck, which affects processing efficiency and limits the use of positioning fixtures.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a quick positioning fixture for processing planetary carriers, including a worktable, a chuck mounted on the surface of the worktable, wherein the surface of the chuck is provided with three evenly distributed circumferential jaws, the chuck limits and fixes the planetary carrier body by means of the jaws, and the surface of the chuck is provided with an adjustment device, wherein the adjustment device adjusts and changes the angle of the planetary carrier body on the chuck by means of rollers and adjustment belts.

[0006] The effect achieved by the above components is as follows: when using a quick positioning fixture to limit and fix the planetary carrier body and assist in the machining operation, first place the planetary carrier body on the surface of the chuck, then start the chuck so that the three jaws on the chuck squeeze and limit the planetary carrier body, then perform the corresponding machining, and during the machining interval, start the adjustment device to rotate and adjust the angle of the planetary carrier body.

[0007] Preferably, the adjustment device includes a mounting frame, wherein the mounting frame is fixedly connected to the arc surface of the clamping plate, and three evenly distributed circumferential mounting discs are slidably connected to the inner wall of the mounting frame, wherein mounting rods are rotatably connected to the inner walls of the mounting discs, and a roller is fixedly connected to the arc surface of one end of the mounting rod, wherein a rubber ring is fixedly connected to the arc surface of the roller, and a sprocket is fixedly connected to the other end of the mounting rod. An adjustment belt is wound around the arc surface of the mounting rod, and both ends of the adjustment belt are fixedly connected to a mounting shaft. One end of the mounting shaft is connected and fixedly connected to the output end of a first servo motor on the mounting frame via a coupling. The sprockets at one end of several mounting rods on the mounting frame are engaged with a chain, and a drive assembly is provided on one side of the mounting frame, wherein the drive assembly assists in the rotation of the chain.

[0008] The effect achieved by the above components is that when using the quick positioning fixture to limit the machining of the planetary carrier body, the angle of the planetary carrier body can be quickly and effectively adjusted and changed, which makes subsequent machining operations more convenient, improves the functionality of the positioning fixture, and also improves machining efficiency.

[0009] Preferably, the surface of the mounting frame is rotatably connected to a plurality of auxiliary rods evenly distributed in a circle, and one end of each auxiliary rod is fixedly connected to a sprocket.

[0010] The effect achieved by the above components is that, by setting the auxiliary rod, the adjusting belt and sprocket installed on the arc surface of the chuck can be used normally and are not likely to come into contact with the surface of the chuck, thus avoiding abnormal use of the components and excessive friction damage.

[0011] Preferably, the drive assembly includes an assembly frame, wherein a second servo motor is mounted on the surface of the assembly frame, two meshing gears are rotatably connected to the inner wall of the assembly frame, and a sprocket is fixedly connected to one side of one of the gears. The output end of the second servo motor is connected and fixed to one of the gears via a coupling. An electric telescopic rod is fixedly connected to the surface of the mounting frame, wherein the output end of the electric telescopic rod is fixedly connected to the assembly frame.

[0012] The effect achieved by the above components is as follows: when the mounting rod, driven by the first servo motor and the adjusting belt, causes the rubber ring on the roller to contact and press against the planetary carrier body, the electric telescopic rod on the mounting frame can be activated, causing the assembly frame to move away from the clamp position, thus tightening and straightening the chain. Then, the second servo motor is activated, causing the gear to rotate, which in turn drives the sprocket on the assembly frame to run, causing the chain to rotate, which in turn drives the rotation of several mounting rods, causing the rollers on the mounting rods to contact and rub against the planetary carrier body, thus causing the planetary carrier body to rotate.

[0013] Preferably, a stabilizing plate is fixedly connected to the surface of the clamp, wherein the inner wall of the stabilizing plate is slidably disposed with the surface of the shaft of the gear assembly.

[0014] The effect achieved by the above components is that, by setting up the stabilizing plate, the components on the mounting frame can better maintain displacement stability when running under the electric telescopic rod, and are less prone to abnormal shaking and displacement.

[0015] Preferably, a spring is mounted on the surface of the mounting plate, wherein the other end of the spring is fixedly connected to the inner wall of the mounting bracket.

[0016] The effect achieved by the above components is that, through the setting of the spring, the planetary carrier body can slide in the inner wall of the mounting frame under the action of the spring force when rotating the angle and before and after picking up and putting down, so that the mounting rod moves away from the clamping plate, thereby improving the convenience of using the adjustment device.

[0017] Preferably, the adjusting device further includes a stabilizing ring fixedly connected to the arc surface of the mounting rod, wherein the adjusting belt passes through the inner wall of the stabilizing ring.

[0018] The effect achieved by the above components is that, by setting the stabilizing ring, the adjusting belt can be kept stable when it is extended and retracted on the mounting rod, and it is not easy for it to slip on the mounting rod, thereby ensuring the tension of the adjusting belt.

[0019] Preferably, a wire reel is fixedly connected to the arc surface of the mounting shaft, wherein the adjusting belt is wound around the inner wall of the wire reel.

[0020] The effect achieved by the above components is that, by setting up the reel, the adjusting belt can be made more stable during winding and unwinding, and less prone to loosening, thus better assisting the rotation of the planetary carrier body.

[0021] The beneficial effects of this utility model are: When using a quick positioning fixture to limit the machining of the planetary carrier body, this utility model can quickly and effectively adjust and change the angle of the planetary carrier body, thereby making subsequent machining operations more convenient, improving the functionality of the positioning fixture, and also improving machining efficiency. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the workbench location of this utility model; Figure 3 This is a structural schematic diagram of the position of the adjustment belt in this utility model; Figure 4 This is a structural schematic diagram of the mounting bracket location of this utility model; Figure 5 This is a structural schematic diagram of the roller position of this utility model; Figure 6 This is a structural schematic diagram of the assembly frame location of this utility model.

[0024] Legend: 1. Worktable; 2. Clamping plate; 3. Gripper; 4. Planetary carrier body; 5. Adjustment device; 51. Mounting frame; 52. Mounting disc; 53. Mounting rod; 54. Roller; 55. Rubber ring; 56. Adjustment belt; 57. First servo motor; 58. Mounting shaft; 59. Sprocket; 510. Chain; 511. Auxiliary rod; 512. Spring; 513. Stabilizing ring; 514. Thread spool; 6. Drive assembly; 61. Assembly frame; 62. Second servo motor; 63. Electric telescopic rod; 64. Gear; 65. Stabilizing plate. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Figure 1 and Figure 3 The quick positioning fixture shown includes a worktable 1, a chuck 2 mounted on the surface of the worktable 1, wherein the surface of the chuck 2 is provided with three evenly distributed circumferential jaws 3, the chuck 2 uses the jaws 3 to limit and fix the planetary carrier body 4, the surface of the chuck 2 is provided with an adjustment device 5, wherein the adjustment device 5 uses rollers 54 and adjustment belts 56 to adjust and change the angle of the planetary carrier body 4 on the chuck 2, and a drive assembly 6 is provided on one side of the mounting frame 51.

[0028] Figure 1 - Figure 5The adjustment device 5 shown includes a mounting frame 51, which is fixedly connected to the arc surface of the clamping plate 2. Three evenly distributed circumferentially arranged mounting discs 52 are slidably connected to the inner wall of the mounting frame 51. Mounting rods 53 are rotatably connected to the inner walls of the mounting discs 52. A roller 54 is fixedly connected to the arc surface of one end of the mounting rod 53, and a rubber ring 55 is fixedly connected to the arc surface of the roller 54. A sprocket 59 is fixedly connected to the other end of the mounting rod 53. An adjustment belt 56 is wound around the arc surface of the mounting rod 53, and the two ends of the belt are... A mounting shaft 58 is fixedly connected to the mounting frame 51. One end of the mounting shaft 58 is connected and fixed to the output end of the first servo motor 57 on the mounting frame 51 via a coupling. A chain 510 is meshed with the sprockets 59 at one end of several mounting rods 53 on the mounting frame 51. A drive assembly 6 is provided on one side of the mounting frame 51, which assists in the rotation of the chain 510. When using a quick positioning fixture to limit and fix the planetary carrier body 4 to assist in machining operations, the planetary carrier body 4 is first placed on the surface of the chuck 2, and then the chuck is started. The three jaws 3 on the chuck 2 press and limit the planetary carrier body 4, and then perform corresponding processing. During the processing gap, the chuck 2 is driven, and the first servo motor 57 on the mounting frame 51 is started, so that the adjusting belt 56 is wound around the mounting shaft 58, thereby pulling the mounting rod 53. The mounting disc 52 on the arc surface of the mounting rod 53 slides on the inner wall of the mounting frame 51 until the rollers 54 on the three mounting rods 53 simultaneously contact the surface of the planetary carrier body 4. Then, the drive assembly 6 on the mounting frame 51 is started, so that the sprocket 59 and chain 510 run and rotate, causing the mounting rod 53 to rotate. At this time, because the rollers 54 are equipped with rubber rings 55, the surface friction will increase. As the three rollers 54 roll, they will press and rub to assist the rotation of the planetary carrier body 4. At this time, when using the quick positioning fixture to process and limit the planetary carrier body 4, the angle of the planetary carrier body 4 can be quickly and effectively adjusted and changed, which makes subsequent processing operations more convenient, improves the functionality of the positioning fixture, and also improves processing efficiency.

[0029] Figure 3 and Figure 5 The mounting bracket 51 shown has several evenly distributed circumferential auxiliary rods 511 rotatably connected to its surface, and one end of each auxiliary rod 511 is fixedly connected to a sprocket 59. By setting the auxiliary rods 511, the adjusting belt 56 and the sprocket 59 installed on the arc surface of the clamping plate 2 can be used normally and are not likely to come into contact with the surface of the clamping plate 2, which would lead to abnormal use of the components and excessive friction damage.

[0030] Figure 2 , Figure 5 and Figure 6The drive assembly 6 shown includes a mounting frame 61, on the surface of which a second servo motor 62 (model Hollysys 130LM series) is mounted. Two meshing gears 64 are rotatably connected to the inner wall of the mounting frame 61, and a sprocket 59 is fixedly connected to one side of one of the gears 64. The output end of the second servo motor 62 is connected and fixedly connected to one of the gears 64 via a coupling. An electric telescopic rod 63 is fixedly connected to the surface of the mounting frame 61, and the output end of the electric telescopic rod 63 is fixedly connected to the mounting frame 61. When the mounting rod 53 is in operation with the first servo motor 57 and... Under the combined drive of the adjusting belt 56, when the rubber ring 55 on the roller 54 contacts and presses against the planetary carrier body 4, the electric telescopic rod 63 on the mounting frame 51 can be activated, causing the mounting frame 61 to move away from the position of the clamp 2, so that the chain 510 is tightened and straightened. Then, the second servo motor 62 is activated, causing the gear 64 to rotate, thereby driving the sprocket 59 on the mounting frame 61 to run, causing the chain 510 to rotate, which in turn drives the rotation of several mounting rods 53, causing the rollers 54 on the mounting rods 53 to contact and rub against the planetary carrier body 4, causing the planetary carrier body 4 to rotate.

[0031] Figure 3 , Figure 5 and Figure 6 A stabilizing plate 65 is fixedly connected to the surface of the clamp 2 shown. The inner wall of the stabilizing plate 65 is slidably disposed with the surface of the shaft on which the gear 64 is assembled. By setting the stabilizing plate 65, the components on the mounting frame 51 can maintain better displacement stability when running under the electric telescopic rod 63, and are less prone to abnormal shaking and displacement. A spring 512 is installed on the surface of the mounting plate 52. The other end of the spring 512 is fixedly connected to the inner wall of the mounting frame 51. By setting the spring 512, the planetary carrier body 4 can slide the coil 514 in the inner wall of the mounting frame 51 under the elastic force of the spring 512 when rotating the angle and before and after picking up and putting down, so that the mounting rod 53 moves away from the clamp 2, thereby improving the ease of use of the adjustment device 5.

[0032] Figure 3 , Figure 4 and Figure 5The adjustment device 5 shown also includes a stabilizing ring 513 fixedly connected to the arc surface of the mounting rod 53. The adjusting belt 56 passes through the inner wall of the stabilizing ring 513. The stabilizing ring 513 ensures that the adjusting belt 56 is stable when it is extended and retracted on the mounting rod 53, and it is not easy for it to slip on the mounting rod 53, thus ensuring that the adjusting belt 56 is taut. A coil 514 is fixedly connected to the arc surface of the mounting shaft 58. The adjusting belt 56 is wound around the inner wall of the coil 514. The coil 514 ensures that the adjusting belt 56 is more stable when it is extended and retracted, and it is not easy for it to loosen when adjusting the length and adjusting the position of the mounting rod 53, thus better assisting the rotation of the planetary carrier body 4.

[0033] Working principle: When using a quick-positioning fixture to limit and fix the planetary carrier body 4 to assist in machining operations, first place the planetary carrier body 4 on the surface of the chuck 2, then start the chuck 2, causing the three jaws 3 on the chuck 2 to press and limit the planetary carrier body 4, and then perform the corresponding machining. During the machining interval, drive the chuck 2 and start the first servo motor 57 (model Hollysys 130LM series) on the mounting frame 51, so that the adjusting belt 56 is wound around the mounting shaft 58, thereby pulling the mounting rod 53, causing the mounting plate 52 on the arc surface of the mounting rod 53 to slide on the inner wall of the mounting frame 51 until the three mounting rods 53 are on the inner wall of the mounting frame 51. The rollers 54 simultaneously contact the surface of the planetary carrier body 4. Then, the drive assembly 6 on the mounting bracket 51 is activated, causing the sprocket 59 and chain 510 to rotate, which in turn causes the mounting rod 53 to rotate. At this time, because the rollers 54 have rubber rings 55 installed on their surfaces, the surface friction increases. As the three rollers 54 roll, they squeeze and rub against each other to assist the rotation of the planetary carrier body 4. When using a quick positioning fixture to process and limit the planetary carrier body 4, the angle of the planetary carrier body 4 can be quickly and effectively adjusted, which makes subsequent processing operations more convenient, improves the functionality of the positioning fixture, and also improves processing efficiency.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A quick positioning fixture for machining planetary carriers, comprising a worktable (1), characterized in that: The surface of the workbench (1) is mounted on the chuck (2), wherein the surface of the chuck (2) is provided with three evenly distributed circumferential jaws (3), the chuck (2) uses the jaws (3) to limit and fix the planetary carrier body (4), and the surface of the chuck (2) is provided with an adjustment device (5), wherein the adjustment device (5) uses rollers (54) and adjustment belts (56) to adjust and change the angle of the planetary carrier body (4) on the chuck (2).

2. The quick positioning fixture for machining planetary carriers according to claim 1, characterized in that: The adjusting device (5) includes a mounting frame (51), wherein the mounting frame (51) is fixedly connected to the arc surface of the clamping plate (2), and three evenly distributed mounting discs (52) are slidably connected to the inner wall of the mounting frame (51), wherein a mounting rod (53) is rotatably connected to the inner wall of the mounting disc (52), and a roller (54) is fixedly connected to the arc surface of one end of the mounting rod (53), wherein a rubber ring (55) is fixedly connected to the arc surface of the roller (54), and a sprocket (59) is fixedly connected to the other end of the mounting rod (53). An adjustment belt (56) is wound around the arc surface of the mounting rod (53), and the two ends of the adjustment are fixedly connected to the mounting shaft (58). One end of the mounting shaft (58) is connected and fixed to the output end of the first servo motor (57) on the mounting frame (51) through a coupling. The sprockets (59) at one end of several mounting rods (53) on the mounting frame (51) are engaged with the chain (510). A drive assembly (6) is provided on one side of the mounting frame (51), wherein the drive assembly (6) assists the rotation of the chain (510).

3. The quick positioning fixture for machining planetary carriers according to claim 2, characterized in that: The mounting bracket (51) has several auxiliary rods (511) that are evenly distributed in a circle on its surface, and one end of each auxiliary rod (511) is fixedly connected to a sprocket (59).

4. A quick positioning fixture for machining planetary carriers according to claim 2, characterized in that: The drive assembly (6) includes an assembly frame (61), on which a second servo motor (62) is mounted. Two meshing gears (64) are rotatably connected to the inner wall of the assembly frame (61), and a sprocket (59) is fixedly connected to one side of one of the gears (64). The output end of the second servo motor (62) is connected and fixed to one of the gears (64) by means of a coupling. An electric telescopic rod (63) is fixedly connected to the surface of the mounting frame (51), and the output end of the electric telescopic rod (63) is fixedly connected to the assembly frame (61).

5. A quick positioning fixture for machining planetary carriers according to claim 4, characterized in that: A stabilizing plate (65) is fixedly connected to the surface of the chuck (2), wherein the inner wall of the stabilizing plate (65) is slidably disposed with the surface of the shaft assembly of the gear (64).

6. A quick positioning fixture for machining planetary carriers according to claim 2, characterized in that: A spring (512) is mounted on the surface of the mounting plate (52), wherein the other end of the spring (512) is fixedly connected to the inner wall of the mounting bracket (51).

7. A quick positioning fixture for machining planetary carriers according to claim 2, characterized in that: The adjustment device (5) further includes a stabilizing ring (513) fixedly connected to the arc surface of the mounting rod (53), wherein the adjustment belt (56) passes through the inner wall of the stabilizing ring (513).

8. A quick positioning fixture for machining planetary carriers according to claim 2, characterized in that: A wire reel (514) is fixedly connected to the arc surface of the mounting shaft (58), wherein the adjusting belt (56) is wound around the inner wall of the wire reel (514).

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