Positioning device for automatic machining of inner wheel

Abstract

The utility model relates to the field of vehicle engineering, in particular to a positioning device for automatic machining of an inner wheel, which comprises a supporting seat, a positioning device and a positioning device, the guide block is arranged on the supporting seat and is positioned on one side of the inner wheel placing table; the movable rod can be arranged on the supporting seat in a sliding mode in the direction facing the guide block, and the movable rod is located on the other side of the inner wheel containing table; the elastic piece is used for connecting the movable rod and the supporting seat; the distance sensor is arranged on the supporting base and located on the side, away from the guide block, of the movable rod. The positioning device for automatic machining of the inner wheel can accurately position the channel position of the inner wheel, facilitates automatic clamping, is high in positioning accuracy, stable and effective, and avoids damage to a machining cutter or product scrapping.

Description

Technical Field

[0001] The utility model relates to the field of vehicle engineering, in particular to a positioning device for automatic processing of inner wheels. Background Art

[0002] The inner ball cage assembly is an important component of the automobile transmission system. Its structure can be referred to the Chinese utility model patent with application number CN202321216366.3, entitled "An inner ball cage structure for an automobile constant velocity universal joint assembly." The inner wheel is one of the important parts of the inner ball cage assembly. The inner wheel is usually spherical in shape with 6 to 8 grooves and a spline inside, which cooperates with the inner ball cage and steel balls to achieve the steering function. In order to save materials, reduce processing volume and improve processing efficiency, the grooves on the inner wheel are usually forged into rough shape before being automatically milled on a special machine tool. Traditional positioning tooling cannot quickly and accurately position the inner wheel, resulting in inaccurate clamping position of the fixture, which affects the final processing accuracy. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a positioning device for automatic processing of inner wheels which can quickly and accurately position a workpiece.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a positioning device for automatic processing of inner wheels, comprising:

[0005] The support base is provided with an inner wheel placement platform;

[0006] A guide block is provided on the support base and is located on one side of the inner wheel placement platform;

[0007] A movable rod is slidably arranged on the support seat in a direction toward the guide block, and the movable rod is located on the other side of the inner wheel placement platform;

[0008] An elastic member, used for connecting the movable rod and the supporting seat;

[0009] The distance sensor is arranged on the support seat and is located on a side of the movable rod away from the guide block.

[0010] Furthermore, one end of the movable rod facing the guide block has a positioning portion, and one end of the movable rod facing away from the guide block has a sensing portion.

[0011] Furthermore, a spherical positioning piece is provided at the positioning portion of the movable rod.

[0012] Furthermore, the spherical positioning member is detachably connected to the movable rod.

[0013] Furthermore, the elastic member is a spring.

[0014] Furthermore, the support seat includes a base plate and a connecting block, the inner wheel placement platform is arranged on the base plate, the guide block and the connecting block are locked on the base plate, the movable rod and the distance sensor are arranged on the connecting block, and the elastic member is respectively connected to the connecting block and the movable rod.

[0015] Furthermore, the connecting block is provided with a guide hole for the movable rod to slide.

[0016] Furthermore, the guide block is tiltedly arranged on the bottom plate.

[0017] Furthermore, the support seat also includes a support and a base, the base is provided with a positioning hole, the support is provided with a positioning boss assembled with the positioning hole, and the bottom plate is arranged on the support.

[0018] Furthermore, the guide block is detachably connected to the base plate.

[0019] The beneficial effects of the present invention are: a positioning device for automatic inner wheel processing, an inner wheel placement table for placing the workpiece to be processed, a guide block for matching the groove on the inner wheel surface, and a movable rod with one end resting on the workpiece under the action of an elastic member. If the workpiece is placed in the correct position and the distance sensor does not detect an abnormal signal, the positioning is normal, the processing equipment can be started normally, and the fixture clamps the workpiece. If the workpiece is placed in the wrong position and the distance sensor detects an abnormal signal, the positioning is inaccurate and the fixture will not move. The positioning device for automatic inner wheel processing provided by the utility model can accurately locate the position of the inner wheel groove, facilitates automatic clamping, and has high positioning accuracy, stable and effective positioning, avoiding damage to the processing tool or causing product scrapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of a positioning device for automatic inner wheel machining;

[0021] Figure 2 A top view of a positioning device for automatic inner wheel machining;

[0022] Figure 3 It is a side view of a positioning device for automatic inner wheel machining;

[0023] Description of labels:

[0024] 1. Support seat; 11. Inner wheel placement platform; 12. Bottom plate; 13. Connecting block; 131. Guide hole; 14. Support; 141. Positioning boss; 15. Base; 151. Positioning hole; 2. Guide block; 3. Movable rod; 31. Positioning part; 311. Spherical positioning part; 32. Sensing part; 4. Elastic part; 5. Distance sensor; 6. Clamp; 7. Workpiece. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0026] Please refer to Figures 1 to 3 As shown, the present invention is a positioning device for automatic inner wheel processing, comprising:

[0027] The support base 1 is provided with an inner wheel placement platform 11;

[0028] The guide block 2 is provided on the support base 1 and is located on one side of the inner wheel placement platform 11;

[0029] The movable rod 3 is slidably disposed on the support base 1 in the direction toward the guide block 2, and the movable rod 3 is located on the other side of the inner wheel placement platform 11;

[0030] The elastic member 4 is used to connect the movable rod 3 and the support base 1;

[0031] The distance sensor 5 is arranged on the support base 1 and is located on a side of the movable rod 3 away from the guide block 2 .

[0032] From the above description, it can be seen that the beneficial effects of the present invention are: a positioning device for automatic processing of inner wheels, the inner wheel placement table 11 is used to place the workpiece 7 to be processed, the guide block 2 is used to match the groove on the surface of the inner wheel, and the movable rod 3 is pressed against the workpiece 7 at one end under the action of the elastic member 4. If the workpiece 7 is placed in the correct position, the distance sensor 5 does not detect an abnormal signal, the positioning is normal, the processing equipment can be started normally, and the clamp 6 clamps the workpiece 7. If the workpiece 7 is placed in the wrong position, the distance sensor 5 detects an abnormal signal, the positioning is inaccurate, and the clamp 6 will not move. The positioning device for automatic processing of inner wheels provided by the present invention can accurately locate the position of the inner wheel groove, facilitate automatic clamping, and has high positioning accuracy, stable and effective positioning, avoiding damage to the processing tool or causing product scrapping.

[0033] In an optional embodiment, the movable rod 3 has a positioning portion 31 at one end facing the guide block 2 , and has a sensing portion 32 at one end facing away from the guide block 2 .

[0034] It can be seen from the above description that the positioning portion 31 is used to position the workpiece 7 , and the sensing portion 32 is used to cooperate with the distance sensor 5 to perform position sensing.

[0035] In an optional embodiment, a spherical positioning member 311 is provided on the positioning portion 31 of the movable rod 3 .

[0036] It can be seen from the above description that the spherical positioning member 311 can be embedded in the groove on the surface of the workpiece 7 for positioning.

[0037] In an optional embodiment, the spherical positioning member 311 is detachably connected to the movable rod 3 .

[0038] It can be seen from the above description that the spherical positioning members 311 of different shapes and sizes can be flexibly replaced according to the specifications of the workpiece 7 and positioning requirements.

[0039] In an optional embodiment, the elastic member 4 is a spring.

[0040] As can be seen from the above description, the spring is used to ensure that the movable rod 3 always remains pressed against the workpiece 7 after the workpiece 7 is placed.

[0041] In an optional embodiment, the support base 1 includes a base plate 12 and a connecting block 13, the inner wheel placement platform 11 is arranged on the base plate 12, the guide block 2 and the connecting block 13 are locked on the base plate 12, the movable rod 3 and the distance sensor 5 are arranged on the connecting block 13, and the elastic member 4 is respectively connected to the connecting block 13 and the movable rod 3.

[0042] It can be seen from the above description that the assembly positions of the above components can be flexibly adjusted according to needs.

[0043] In an optional embodiment, the connecting block 13 is provided with a guide hole 131 for the movable rod 3 to slide.

[0044] In an optional embodiment, the guide block 2 is arranged on the base plate 12 at an angle.

[0045] From the above description, it can be seen that in order to reduce the torque loss during the transmission process, the grooves on the inner wheel are usually designed to be inclined and cross-shaped on the left and right sides. This requires that before automatic processing, not only the grooves on the inner wheel forging blank need to be accurately positioned in a unified direction and position to avoid insufficient or uneven machining allowances due to the offset of the inner wheel position during groove processing, resulting in tool damage or product scrapping, but also the left and right grooves need to be prevented from being placed upside down, causing collisions during automatic processing and damaging equipment and tools. The guide block 2 is tilted to accurately position the inner wheel groove position and effectively prevent the left and right grooves from being placed upside down, facilitating automatic clamping, and achieving high, stable and effective positioning accuracy.

[0046] In an optional embodiment, the support seat 1 further includes a support 14 and a base 15 , the base 15 is provided with a positioning hole 151 , the support 14 is provided with a positioning boss 141 assembled with the positioning hole 151 , and the bottom plate 12 is disposed on the support 14 .

[0047] It can be seen from the above description that the tooling can be assembled quickly and accurately by cooperating with the positioning boss 141 and the positioning hole 151 .

[0048] In an optional embodiment, the guide block 2 is detachably connected to the base plate 12 .

[0049] Please refer to Figures 1 to 3 As shown, the first embodiment of the present invention is: a positioning device for automatic processing of inner wheels, comprising:

[0050] The support base 1 is provided with an inner wheel placement platform 11;

[0051] The guide block 2 is provided on the support base 1 and is located on one side of the inner wheel placement platform 11;

[0052] The movable rod 3 is slidably disposed on the support base 1 in the direction toward the guide block 2, and the movable rod 3 is located on the other side of the inner wheel placement platform 11;

[0053] The elastic member 4 is used to connect the movable rod 3 and the support base 1;

[0054] The distance sensor 5 is arranged on the support base 1 and is located on a side of the movable rod 3 away from the guide block 2 .

[0055] The movable rod 3 has a positioning portion 31 at one end facing the guide block 2, and a sensing portion 32 at one end facing away from the guide block 2. The movable rod 3 is provided with a spherical positioning member 311 at the positioning portion 31. The spherical positioning member 311 is detachably connected to the movable rod 3. The elastic member 4 is a spring. The support base 1 includes a base plate 12 and a connecting block 13. The inner wheel placement platform 11 is provided on the base plate 12. The guide block 2 and the connecting block 13 are locked to the base plate 12. The movable rod 3 and the distance sensor 5 are provided on the connecting block 13. The elastic member 4 is connected to the connecting block 13 and the movable rod 3 respectively. The connecting block 13 is provided with a guide hole 131 for sliding of the movable rod 3. The guide block 2 is tilted on the base plate 12. The support base 1 also includes a support 14 and a base 15. The base 15 is provided with a positioning hole 151. The support 14 is provided with a positioning boss 141 assembled with the positioning hole 151. The base 12 is provided on the support 14. The guide block 2 is detachably connected to the base plate 12.

[0056] The working principle of this embodiment is:

[0057] The base 15 is connected to the conveyor belt of the processing equipment. The support 14 is fixed to the base 15. A positioning hole 151 is located at the center of the top of the support 14 for positioning the base plate 12. The base plate 12 is located above the support 14 and has a boss on its bottom that mates with the positioning hole 151 in the support 14. A guide block 2 is located on the left side above the base plate 12. The guide block 2 is fixed to the base plate 12 at an angle, with the tilt direction and angle consistent with the tilt angle of the left or right inclined groove of the inner wheel. A connecting block 13 is located on the right side of the base plate 12. A guide hole 131 is located above the connecting block 13. A movable rod 3 passes through the guide hole 131 and is located above the connecting block 13. The movable rod 3 can move left and right along the guide hole 131. A steel ball and a spring are installed at the head of the movable rod 3. The diameter of the steel ball is selected according to the size of the groove. The movable rod 3 and the guide block 2 are arranged opposite each other in the two grooves of the inner wheel. The spring is mounted on the movable rod 3. The spring force causes the steel ball to push the inner wheel toward the guide block 2, maintaining a certain pressure, thereby achieving high positioning accuracy. The distance sensor 5 is mounted on the connecting block 13, behind the movable rod 3, and is used to sense the position of the movable rod 3. When the inner wheel is correctly positioned (with the right-angled groove in contact with the guide block 2) between the guide block 2 and the steel ball, the distance between the movable rod 3 and the limit sensor is greater than the sensing distance. The limit sensor will not detect an abnormal signal, and the processing equipment can be started normally. When the inner wheel is incorrectly positioned (with the left-angled groove in contact with the guide block 2) between the guide block 2 and the steel ball, the distance between the movable rod and the limit sensor is less than the sensing distance. The limit sensor will detect an abnormal signal, and the processing equipment cannot be started normally.

[0058] When in use, align the right inclined groove of the inner wheel with the position of the guide block 2, and insert it downward between the guide block 2 and the steel ball until the end face of the inner wheel contacts the bottom plate 12. The spring resets, and the steel ball pushes into the inner wheel groove to push the inner wheel toward the guide block 2 and press it tightly. The distance between the movable rod 3 and the limit sensor is greater than the sensing distance. The limit sensor does not detect any abnormal signal, the positioning is normal, and the processing equipment can be started normally. The clamp 6 moves to the specified position, accurately aligns with the inner hole of the inner wheel from above, and then moves downward. After the inner hole of the inner wheel is opened, the clamping is completed.

[0059] The device has a simple and compact structure and is easy to use. It uses the inclined guide block 2 and the movable steel ball to position the inner wheel and automatically detects the position, ensuring the precise positioning of the inner wheel before automatic milling. It not only ensures that the processing amount of the groove during automatic milling is uniform, thereby improving the tool life and product qualification rate, but also effectively avoids processing collisions caused by the reverse placement or rotational dislocation of the left and right grooves, reducing the potential risk of damage to the equipment and tools.

[0060] In summary, the positioning device for automatic inner wheel processing of the present invention has an inner wheel placement table for placing the workpiece to be processed, a guide block for matching the groove on the inner wheel surface, and a movable rod with one end resting on the workpiece under the action of an elastic member. If the workpiece is placed in the correct position and the distance sensor does not detect an abnormal signal, the positioning is normal, the processing equipment can be started normally, and the fixture clamps the workpiece. If the workpiece is placed in the wrong position and the distance sensor detects an abnormal signal, the positioning is inaccurate and the fixture will not move. The positioning device for automatic inner wheel processing provided by the present invention can accurately locate the inner wheel groove position, facilitates automatic clamping, and has high positioning accuracy, is stable and effective, and avoids damage to the processing tool or causing product scrapping.

[0061] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A positioning device for automatic inner wheel processing, characterized in that: include: The support base is provided with an inner wheel placement platform; A guide block is provided on the support base and is located on one side of the inner wheel placement platform; A movable rod is slidably arranged on the support seat in a direction toward the guide block, and the movable rod is located on the other side of the inner wheel placement platform; An elastic member, used for connecting the movable rod and the supporting seat; The distance sensor is arranged on the support seat and is located on a side of the movable rod away from the guide block.

2. The positioning device for automatic inner wheel processing according to claim 1, characterized in that: One end of the movable rod facing the guide block is provided with a positioning portion, and one end of the movable rod facing away from the guide block is provided with a sensing portion.

3. The positioning device for automatic inner wheel processing according to claim 2, characterized in that: The movable rod is provided with a spherical positioning piece at the positioning portion.

4. The positioning device for automatic inner wheel processing according to claim 3, characterized in that: The spherical positioning piece is detachably connected to the movable rod.

5. The positioning device for automatic inner wheel processing according to claim 1, characterized in that: The elastic member is a spring.

6. The positioning device for automatic inner wheel processing according to claim 1, characterized in that: The support seat includes a base plate and a connecting block. The inner wheel placement platform is arranged on the base plate. The guide block and the connecting block are locked on the base plate. The movable rod and the distance sensor are arranged on the connecting block. The elastic member is respectively connected to the connecting block and the movable rod.

7. The positioning device for automatic inner wheel processing according to claim 6, characterized in that: The connecting block is provided with a guide hole for the movable rod to slide.

8. The positioning device for automatic inner wheel processing according to claim 6, characterized in that: The guide block is arranged on the bottom plate in an inclined manner.

9. The positioning device for automatic inner wheel processing according to claim 6, characterized in that: The support seat also includes a support and a base. The base is provided with a positioning hole, the support is provided with a positioning boss assembled with the positioning hole, and the bottom plate is arranged on the support.

10. The positioning device for automatic inner wheel processing according to claim 6, characterized in that: The guide block is detachably connected to the base plate.

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