Positioning tool for besides-star wheel

Abstract

The utility model relates to a positioning tool for a besides-star wheel, which belongs to the technical field of besides-star wheel processing and comprises a base, an L-shaped frame is fixedly mounted at the top of the base, and a mounting groove is formed in the L-shaped frame. The besides-star wheel machining device has the advantages that when the besides-star wheel body is machined, the threaded rod rotates to drive the positioning plate to ascend and descend in the mounting groove, then the hole groove in the positioning plate can be used for limiting the rod body of the besides-star wheel body, the positioning piece is used for limiting the spline groove of the besides-star wheel body, and the machining precision is improved. Through the arrangement of the adjusting assembly, a worker can adjust the direction of the besides-star wheel body according to the machining requirement, re-clamping in the midway is not needed, the fixing state of the besides-star wheel body is not affected, machining equipment can better machine the peripheral wall of the besides-star wheel body, and through the arrangement of the monitoring assembly, the machining efficiency of the besides-star wheel body is improved. The clamping force of the positioning plate can be monitored, and damage to the besides-star wheel body caused by too large clamping force is avoided.

Description

Technical Field

[0001] This utility model relates to the field of extraterrestrial wheel processing technology, and in particular to a positioning fixture for extraterrestrial wheels. Background Technology

[0002] The outer planetary wheel component is used in the constant velocity universal joint drive shaft of automobiles. When machining the outer planetary wheel, it is necessary to clamp it. The existing fixtures for clamping the outer planetary wheel are not firm enough and lack rigidity, which is not conducive to improving the machining accuracy of the outer planetary wheel.

[0003] A search revealed a Chinese patent (authorization announcement number CN209868042U) disclosing a clamping fixture for mounting an extraterrestrial wheel. When using this fixture to clamp an extraterrestrial wheel, the splined shaft of the extraterrestrial wheel is inserted into a splined sleeve. A movable block, driven by a clamping cylinder, moves towards a fixed block, causing the splined sleeve to clamp the splined shaft of the extraterrestrial wheel. Then, a clamping cylinder drives a clamping block to clamp the cup-shaped wheel body of the extraterrestrial wheel, thus securely clamping the extraterrestrial wheel. Therefore, this fixture provides a convenient way to clamp extraterrestrial wheels, with a simple structure and easy operation.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that after the device completes the clamping of the outer star wheel, the outer star wheel is fixed as a whole. If it is necessary to grind or polish the outer surface of the outer star wheel, the clamping fixture needs to be adjusted multiple times because the outer star wheel is fixed. In addition, the outer star wheel fixture uses cylinders, but no corresponding monitoring components are set up, so it is impossible to monitor the clamping force of the cylinders, which can easily damage the surface of the outer star wheel. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a positioning fixture for an alien wheel.

[0006] The technical solution of this utility model is as follows: a positioning fixture for an extraterrestrial wheel includes a base, an L-shaped frame fixedly mounted on the top of the base, an installation groove inside the L-shaped frame, a threaded rod rotatably connected inside the installation groove, a positioning plate threadedly connected to the outer side of the threaded rod, the positioning plate slidably connected to the inner wall of the installation groove, an adjusting plate rotatably connected to the top of the base, a positioning component fixedly connected to the top of the adjusting plate, an extraterrestrial wheel body disposed on the top of the base, a slot for cooperating with the rod of the extraterrestrial wheel body is provided on the side of the positioning plate near the positioning component, the positioning component cooperates with the spline groove of the extraterrestrial wheel body, the extraterrestrial wheel body is engaged between the positioning component and the slot, an adjusting component is provided at the bottom of the adjusting plate, and a monitoring component is provided on the outer side of the L-shaped frame.

[0007] By adopting the above technical solution, when processing the outer star wheel body, the rotation of the threaded rod is used to drive the positioning plate to move up and down in the mounting groove. In this way, the hole groove in the positioning plate can be used to limit the rod of the outer star wheel body, and the positioning component can be used to limit the spline groove of the outer star wheel body.

[0008] In a preferred embodiment, the adjustment assembly includes a fixed groove formed inside the base and located below the adjustment disk. The rotation shaft of the adjustment disk is rotatably connected to the inner wall of the fixed groove. A worm gear is fixedly connected to the rotation shaft of the adjustment disk. A worm is rotatably installed inside the fixed groove, and the worm gear is meshed with the worm wheel.

[0009] By adopting the above technical solution, the rotation of the worm gear can drive the worm wheel to rotate, thereby changing the orientation of the outer planet wheel body on the adjustment plate according to different processing requirements, so as to improve the applicability of the device.

[0010] In a preferred embodiment, the monitoring component includes a pressure sensor embedded in the inner wall of the slot, and a controller is fixedly mounted on the outer side of the L-shaped frame.

[0011] By adopting the above technical solution, the pressure of the outer star wheel body rod placed in the slot can be monitored through the action of the pressure sensor.

[0012] In a preferred embodiment, the monitoring component further includes a servo motor fixedly mounted on the top of the L-shaped frame, the output shaft of which extends into the interior of the mounting slot and is fixedly connected to a threaded rod.

[0013] By adopting the above technical solution, the servo motor can be controlled by the controller to shut down in a timely manner to avoid excessive clamping force that could damage the outer wheel body.

[0014] In a preferred embodiment, both sides of the positioning plate are fixedly connected to limit plates, and both sides of the L-shaped frame are fixedly connected to positioning rods, with the positioning rods penetrating the interior of the corresponding limit plates.

[0015] By adopting the above technical solution, the use of the limiting plate and the positioning rod together can play a certain role in limiting and positioning the lifting and lowering of the positioning plate, so as to prevent the occurrence of displacement and misalignment.

[0016] In a preferred embodiment, one end of the worm gear extends to the outside of the base and is fixedly connected to an adjustment knob.

[0017] By adopting the above technical solution and adjusting the knob settings, the worm gear can be adjusted by the operator.

[0018] In a preferred embodiment, a movable seat is slidably mounted inside the base, and a mounting seat is mounted on top of the movable seat.

[0019] By adopting the above technical solution, and by setting up a movable base and a mounting base, the processing equipment for the outer planet wheel body can be installed on the base so as to process the outer planet wheel body on the base.

[0020] In a preferred embodiment, both the servo motor and the pressure sensor are electrically connected to the controller.

[0021] By adopting the above technical solution, the servo motor and pressure sensor can be started and stopped by the controller.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. In this utility model, the rotation of the worm gear can drive the worm wheel to rotate, thereby changing the position of the outer star wheel body on the adjustment plate according to different processing requirements. There is no need to re-clamp midway, and it will not affect the fixed state of the outer star wheel body, so that the processing equipment can better process the outer peripheral wall of the outer star wheel body.

[0024] 2. In this utility model, the pressure sensor can monitor the pressure of the outer star wheel body rod placed in the slot. When the clamping pressure reaches the preset pressure value of the pressure sensor, the information will be transmitted to the controller, and the controller will control the servo motor to shut down in time to avoid damage to the outer star wheel body due to excessive clamping force. Attached Figure Description

[0025] Figure 1 A three-dimensional view of the positioning fixture for the extraterrestrial wheel provided by this utility model;

[0026] Figure 2 A schematic diagram of the internal structure of a positioning fixture for an extraterrestrial wheel provided by this utility model;

[0027] Figure 3 This utility model provides a schematic diagram of the monitoring component of a positioning fixture for an extraterrestrial wheel.

[0028] Legend: 1. Base; 2. Outer wheel body; 3. Positioning plate; 4. Limiting plate; 5. Positioning rod; 6. L-shaped frame; 7. Mounting slot; 8. Threaded rod; 9. Servo motor; 10. Controller; 11. Moving seat; 12. Mounting seat; 13. Positioning component; 14. Fixing slot; 15. Worm gear; 16. Worm; 17. Adjusting disc; 18. Pressure sensor. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-3 An exoplanet wheel positioning fixture includes a base 1, an L-shaped frame 6 fixedly mounted on the top of the base 1, an installation groove 7 inside the L-shaped frame 6, a threaded rod 8 rotatably connected inside the installation groove 7, a positioning plate 3 threadedly connected to the outer side of the threaded rod 8, the positioning plate 3 slidably connected to the inner wall of the installation groove 7, an adjusting plate 17 rotatably connected to the top of the base 1, a positioning element 13 fixedly connected to the top of the adjusting plate 17, an exoplanet wheel body 2 on the top of the base 1, a slot on the side of the positioning plate 3 near the positioning element 13 for use with the rod of the exoplanet wheel body 2, the positioning element 13 for use with the spline groove of the exoplanet wheel body 2, the exoplanet wheel body 2 being engaged between the positioning element 13 and the slot, an adjusting component at the bottom of the adjusting plate 17, and the L-shaped frame 6. A monitoring component is installed on the outer side of the outer star wheel body 2. When processing the outer star wheel body 2, the rotation of the threaded rod 8 drives the positioning plate 3 to move up and down within the mounting groove 7. The slots in the positioning plate 3 limit the rod of the outer star wheel body 2, and the positioning component 13 limits the spline groove of the outer star wheel body 2. By adjusting the component, the operator can adjust the position of the outer star wheel body 2 according to the processing requirements without re-clamping it midway, and without affecting the fixed state of the outer star wheel body 2. This allows the processing equipment to better process the outer peripheral wall of the outer star wheel body 2. Furthermore, the monitoring component can monitor the clamping force of the positioning plate 3 to prevent excessive clamping force from damaging the outer star wheel body 2.

[0031] Specifically, the adjustment assembly includes a fixing groove 14 located inside the base 1 and below the adjustment plate 17. The rotation shaft of the adjustment plate 17 is rotatably connected to the inner wall of the fixing groove 14. A worm gear 15 is fixedly connected to the rotation shaft of the adjustment plate 17. The rotation of the worm 16 drives the worm gear 15 to rotate, thereby changing the orientation of the outer planetary wheel body 2 on the adjustment plate 17 according to different processing requirements, improving the applicability of the device. Furthermore, it eliminates the need for re-clamping during processing, making the processing of the outer planetary wheel body 2 more convenient. The worm 16 is rotatably installed inside the fixing groove 14, and the worm 16 meshes with the worm gear 15. The monitoring component includes a pressure sensor 18 embedded in the inner wall of the slot, a controller 10 fixedly mounted on the outer side of the L-shaped frame 6, and a servo motor 9 fixedly mounted on the top of the L-shaped frame 6. The output shaft of the servo motor 9 extends into the interior of the mounting slot 7 and is fixedly connected to the threaded rod 8. Through the action of the pressure sensor 18, the pressure of the outer star wheel body 2 rod topped in the slot can be monitored. When the clamping pressure reaches the preset pressure value of the pressure sensor 18, the information will be transmitted to the controller 10, and the controller 10 will control the servo motor 9 to shut down in time to avoid excessive clamping force and damage to the outer star wheel body 2.

[0032] Specifically, both sides of the positioning plate 3 are fixedly connected to limit plates 4, and both sides of the L-shaped frame 6 are fixedly connected to positioning rods 5. Through the cooperation of the limit plates 4 and the positioning rods 5, the lifting and lowering of the positioning plate 3 can play a certain limiting and positioning role to prevent the displacement and misalignment. The positioning rods 5 all pass through the interior of the corresponding limit plates 4. One end of the worm gear 16 extends to the outside of the base 1 and is fixedly connected to an adjustment knob. The adjustment knob allows the operator to adjust the worm gear 16. A movable seat 11 is slidably installed inside the base 1, and a mounting seat 12 is installed on the top of the movable seat 11. Through the setting of the movable seat 11 and the mounting seat 12, the processing equipment for the outer star wheel body 2 can be installed on the base 1 to process the outer star wheel body 2 on the base 1, such as cutting equipment, grinding equipment, etc. The servo motor 9 and the pressure sensor 18 are electrically connected to the controller 10. The controller 10 can control the servo motor 9 and the pressure sensor 18 to start and stop.

[0033] Working principle: First, the operator can place the outer planet wheel body 2 to be processed on the base 1, and make the spline groove on the outer planet wheel body 2 engage with the positioning part 13. Then, the controller 10 controls the servo motor 9 to start, and the rotation of the threaded rod 8 drives the positioning plate 3 to move up and down in the mounting groove 7. The hole groove in the positioning plate 3 can limit the rod of the outer planet wheel body 2, thereby fixing the outer planet wheel body 2 on the base 1. Then, the rod of the outer planet wheel body 2 will trigger the pressure sensor 18 in the hole groove. When the clamping pressure reaches the preset pressure value of the pressure sensor 18, the information will be transmitted to the controller 10, and the controller 10 will control the servo motor 9 to shut down in time to avoid excessive clamping force and damage to the outer planet wheel body 2.

[0034] Once the preliminary work is completed, the workers can install other processing equipment such as cutting equipment and grinding equipment on the mounting base 12 and rotate the adjustment knob to drive the worm gear 16 to rotate, which in turn drives the worm wheel 15 to rotate. This allows the position of the outer planet wheel body 2 on the adjustment plate 17 to be changed according to different processing requirements without the need for re-clamping and without affecting the fixed state of the outer planet wheel body 2, enabling the processing equipment to better process the outer peripheral wall of the outer planet wheel body 2.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A positioning fixture for an extraterrestrial wheel, comprising a base (1), characterized in that: An L-shaped frame (6) is fixedly installed on the top of the base (1). An installation groove (7) is provided inside the L-shaped frame (6). A threaded rod (8) is rotatably connected inside the installation groove (7). A positioning plate (3) is threadedly connected to the outside of the threaded rod (8). The positioning plate (3) is slidably connected to the inner wall of the installation groove (7). An adjustment plate (17) is rotatably connected to the top of the base (1). The top of the adjustment plate (17) is fixedly connected to a positioning component (13), the top of the base (1) is provided with an outer star wheel body (2), the side of the positioning plate (3) near the positioning component (13) is provided with a hole and slot that cooperates with the rod of the outer star wheel body (2), the positioning component (13) cooperates with the spline groove of the outer star wheel body (2), the outer star wheel body (2) is engaged between the positioning component (13) and the hole and slot, the bottom of the adjustment plate (17) is provided with an adjustment component, and the outside of the L-shaped frame (6) is provided with a monitoring component.

2. The positioning fixture for an extraterrestrial wheel according to claim 1, characterized in that: The adjustment assembly includes a fixed groove (14) located inside the base (1) and below the adjustment plate (17). The rotation shaft of the adjustment plate (17) is rotatably connected to the inner wall of the fixed groove (14). A worm gear (15) is fixedly connected to the rotation shaft of the adjustment plate (17). A worm (16) is rotatably installed inside the fixed groove (14). The worm (16) meshes with the worm gear (15).

3. The positioning fixture for an extraterrestrial wheel according to claim 1, characterized in that: The monitoring component includes a pressure sensor (18) embedded in the inner wall of the slot, and a controller (10) is fixedly mounted on the outside of the L-shaped frame (6).

4. The positioning fixture for an extraterrestrial wheel according to claim 3, characterized in that: The monitoring component also includes a servo motor (9) fixedly mounted on the top of the L-shaped frame (6), the output shaft of which extends into the interior of the mounting slot (7) and is fixedly connected to the threaded rod (8).

5. The positioning fixture for an extraterrestrial wheel according to claim 1, characterized in that: Both sides of the positioning plate (3) are fixedly connected to the limiting plate (4), and both sides of the L-shaped frame (6) are fixedly connected to the positioning rod (5). The positioning rod (5) passes through the interior of the corresponding limiting plate (4).

6. The positioning fixture for an extraterrestrial wheel according to claim 2, characterized in that: One end of the worm (16) extends to the outside of the base (1) and is fixedly connected to an adjustment knob.

7. The positioning fixture for an extraterrestrial wheel according to claim 1, characterized in that: A movable seat (11) is slidably mounted inside the base (1), and a mounting seat (12) is mounted on the top of the movable seat (11).

8. The positioning fixture for an extraterrestrial wheel according to claim 4, characterized in that: The servo motor (9) and pressure sensor (18) are both electrically connected to the controller (10).

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