Clamping and positioning device for shell combination machining and using method

Abstract

The invention discloses a shell combination machining, clamping and positioning device and a using method, and belongs to the technical field of technological equipment.The shell combination machining, clamping and positioning device comprises a base, a positioning supporting seat welding part is arranged on the base, a hub reduction gear shell is arranged on the positioning supporting seat welding part, and the hub reduction gear shell is in positioning connection with the base through a second positioning pin; a supporting cushion block is arranged on the positioning supporting seat welding part located in the hub reduction gear shell, a planet carrier is arranged on the supporting cushion block, a positioning gland is arranged on the planet carrier, a positioning mandrel is arranged in the middle of the positioning gland, the middle of the planet carrier and the middle of the positioning supporting seat welding part in a penetrating mode, and the planet carrier is connected with the positioning supporting seat welding part through a first positioning pin. A pressing cushion block is arranged on the positioning gland, a connecting structure is arranged on the pressing cushion block, and the connecting structure vertically extends out of the hub reduction gear shell to be connected with the hub reduction gear shell gland. By using one positioning mandrel, the hub reduction gear shell and the planet carrier can be uniformly and accurately positioned, and split machining and combined machining of the planet carrier and the hub reduction gear shell can be efficiently completed.

Description

Technical Field

[0001] The invention relates to the technical field of process equipment, and in particular to a shell assembly processing clamping and positioning device. Background Art

[0002] At present, the processing of shell parts generally uses special tooling to position and clamp them, but there are few combined tooling. For example, the wheel reducer housing and the planetary carrier are processed separately. When this method is used to process combined parts, there will be cumulative errors when the parts have errors and are combined together, thereby reducing the processing accuracy and production efficiency of the parts.

[0003] Existing shell-type combined clamping and positioning clamping tools are often clamped by pneumatic drive or hydraulic drive, which makes the manufacturing cost of the tool relatively high and the compatibility with the workpiece is not strong.

[0004] In summary, the clamping and positioning devices for shell combination processing parts in the prior art have limitations in part processing. Therefore, how to design and provide a shell combination processing clamping and positioning device with a reasonable mechanism, compact structure, low cost and good versatility is a technical problem that urgently needs to be solved. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a shell combined processing clamping and positioning device and a use method. By using a positioning mandrel, the wheel-side reducer shell and the planetary carrier can be uniformly positioned, the positioning accuracy can be increased, and the separate processing and combined processing of the planetary carrier and the wheel-side reducer shell can be completed. It has the characteristics of one tool for multiple uses. The application of this device enhances the processing accuracy of the machine tool, improves the processing quality of the workpiece, and improves the processing efficiency. It has a simple structure, is easy to maintain, and has a long service life.

[0006] The technical solution of the present invention is as follows:

[0007] In the first aspect of the present invention, a shell assembly processing clamping and positioning device is provided, including a base, a positioning support seat welded on the base, a wheel-side reducer shell is welded on the positioning support seat, and the wheel-side reducer shell and the base are positioned and connected by a second positioning pin; a supporting pad is provided on the positioning support seat welded inside the wheel-side reducer shell, a planetary carrier is provided on the supporting pad, a positioning pressure cover is provided on the planetary carrier, a positioning core shaft is passed through the middle of the positioning pressure cover, the planetary carrier and the positioning support seat weld, and the planetary carrier and the positioning support seat weld are connected by a first positioning pin; a clamping pad is provided on the positioning pressure cover, and a connecting structure is provided on the clamping pad, and the connecting structure extends vertically to the outside of the wheel-side reducer shell and is connected to the wheel-side reducer shell pressure cover.

[0008] In some embodiments of the present invention, a groove structure is provided on the base, and a protrusion structure is provided on the bottom of the welded positioning support seat, and the protrusion structure of the welded positioning support seat is compatible with the groove structure of the base; the welded positioning support seat is positioned and connected to the base via a circular positioning pin.

[0009] In some embodiments of the present invention, the welded outer wall of the positioning support seat abuts against the inner wall of the wheel-side reducer shell, the wheel-side reducer shell is provided with an annular edge, the annular edge is provided with a wheel-side reducer shell mounting hole, the base is provided with a base mounting hole, and the second positioning pin passes through the wheel-side reducer shell mounting hole and the base mounting hole to position and connect the wheel-side reducer shell and the base.

[0010] In some embodiments of the present invention, a plurality of support pads are provided, and the plurality of support pads are arranged at the same height on the peripheral side of the positioning core shaft at the top of the positioning support seat welded thereto.

[0011] In some embodiments of the present invention, the positioning mandrel and the positioning support seat are welded together in an interference fit manner, and the bottom of the positioning mandrel and the welded bottom of the positioning support seat are connected by a first screw.

[0012] In some embodiments of the present invention, the connecting structure includes a first nut, a first bolt and a third nut, the first bolt is arranged on the upper part of the clamping pad, the first nut is arranged at one end of the first bolt close to the clamping pad, the end of the first bolt away from the first nut extends vertically to the outside of the wheel-side reducer housing, and is connected to the wheel-side reducer housing cover through a third nut arranged on the outside of the wheel-side reducer housing cover; the first bolt and the axis of the positioning core shaft are in the same straight line.

[0013] In some embodiments of the present invention, the planet carrier is provided with a prefabricated hole, the top of the positioning support seat is provided with a positioning hole, and the first positioning pin passes through the prefabricated hole and the positioning hole to weld the planet carrier and the positioning support seat for positioning connection.

[0014] In some embodiments of the present invention, a plurality of double-headed screws are provided at the bottom of the base, a second nut is provided on the double-headed screw, and a spring washer is provided at the contact position between the second nut and the base.

[0015] In some embodiments of the present invention, a positioning guide key is provided at the bottom of the base, and the positioning guide key is connected to the base via a first screw.

[0016] In a second aspect of the present invention, a method for using a housing assembly processing clamping and positioning device is provided, comprising:

[0017] Fix the device base on the workbench, weld the positioning mandrel and the positioning support seat together, and then place them on the base, so that the welded protrusion structure of the positioning support seat matches the groove structure of the base;

[0018] A plurality of support pads with the same height are arranged on the peripheral side of the positioning core shaft at the top of the positioning support seat welded together, a planetary carrier is arranged on the upper part of the plurality of support pads through the positioning core shaft, the planetary carrier is welded and connected with the positioning support seat by passing the first positioning pin through the prefabricated hole on the planetary carrier and the positioning hole on the positioning support seat welded together, and a positioning gland is arranged on the upper part of the planetary carrier to match the positioning core shaft, so that the axis of the first bolt and the positioning core shaft are in the same straight line; the planetary carrier and the positioning gland, the positioning gland and the positioning core shaft are matched through a small gap to realize the center positioning of the planetary carrier, and then the positioning of the planetary carrier is completed by the small gap matching between the first positioning pin and the prefabricated hole of the planetary carrier, and the first positioning pin and the positioning hole of the positioning support seat welded together;

[0019] A clamping pad is arranged on the upper part of the positioning gland, a first bolt is arranged on the upper part of the clamping pad for connection, and a first nut is arranged at one end of the first bolt close to the positioning gland for tightening; one end of the first bolt away from the first nut vertically extends to the outside of the wheel-side reducer housing, and is connected and fixed to the wheel-side reducer housing gland by a third nut arranged outside the wheel-side reducer housing gland;

[0020] The wheel-side reducer shell is arranged on the welded positioning support seat, so that the inner wall of the wheel-side reducer shell abuts against the welded outer wall of the positioning support seat, and the second positioning pin passes through the mounting hole of the wheel-side reducer shell and the mounting hole of the base to position and connect the wheel-side reducer shell and the base; the outer circle of the lower end of the wheel-side reducer shell and the support seat weld is matched with a small gap to realize the center positioning of the wheel-side reducer shell, and then the second positioning pin is matched with the mounting hole of the wheel-side reducer shell and the small gap between the second positioning pin and the mounting hole of the base to complete the positioning of the wheel-side reducer shell;

[0021] Start processing parts.

[0022] One or more technical solutions of the present invention have the following beneficial effects:

[0023] The present invention provides a housing combined processing clamping and positioning device and a use method thereof. By using a positioning mandrel, the wheel side reducer housing and the planetary carrier can be uniformly positioned, the positioning accuracy can be increased, and the separate processing and combined processing of the planetary carrier and the wheel side reducer housing can be completed. The device has the characteristics of one tool with multiple uses. The application of the device can enhance the processing accuracy of the machine tool, improve the processing quality of the workpiece, and improve the processing efficiency. The device has a simple structure, is easy to maintain, and has a long service life.

[0024] In addition, the four supporting pads used by the planetary carrier are made by simultaneous grinding, which better ensures the consistency of the height and flatness of the upper and lower end surfaces, thereby ensuring the quality accuracy of the parts processing;

[0025] The planet carrier positioning and wheel reducer housing positioning of the clamping positioning device are locked with positioning pins respectively, which is convenient for positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic cross-sectional view of the overall structure of a housing assembly processing clamping and positioning device provided in Example 1 of the present invention;

[0027] Figure 2 A front schematic diagram of the overall structure of a housing assembly processing clamping and positioning device provided in Example 1 of the present invention;

[0028] Figure 3 A schematic top view of a housing assembly processing clamping and positioning device provided in Example 1 of the present invention;

[0029] Figure 4 A front view of the positioning mandrel provided in Example 1 of the present invention;

[0030] Figure 5 A top view of the positioning mandrel provided in Example 1 of the present invention;

[0031] Figure 6 A front view schematic diagram of the welding of the positioning support seat provided in Example 1 of the present invention;

[0032] Figure 7 A schematic top view of a positioning support welding seat provided in Example 1 of the present invention;

[0033] In the figure: 1. base; 2. circular locating pin; 3. locating support seat welded; 4. first locating pin; 5. locating pressure cover; 6. clamping pad; 7. first nut; 8. third nut; 9. wheel-side reducer housing pressure cover; 10. locating mandrel; 11. support pad; 12. second locating pin; 13. double-headed screw; 14. second nut; 15. spring washer; 16. first screw; 17. locating guide key; 18. second screw. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Example 1

[0036] In a typical embodiment of the present invention, Figure 1-Figure 7As shown, a shell assembly processing clamping and positioning device is proposed, including a base 1, a positioning support seat weld 3 is provided on the base 1, a wheel-side reducer shell is provided on the positioning support seat weld 3, and the wheel-side reducer shell and the base 1 are positioned and connected by a second positioning pin 12; a supporting pad 11 is provided on the positioning support seat weld 3 located inside the wheel-side reducer shell, a planetary carrier is provided on the supporting pad 11, a positioning pressure cover 5 is provided on the planetary carrier, a positioning core shaft 10 is passed through the middle of the positioning pressure cover 5, the planetary carrier and the positioning support seat weld 3, and the planetary carrier is connected to the positioning support seat weld 3 by a first positioning pin 4; a clamping pad 6 is provided on the positioning pressure cover 5, and a connecting structure is provided on the clamping pad 6, and the connecting structure vertically extends to the outside of the wheel-side reducer shell and is connected to the wheel-side reducer shell pressure cover 9.

[0037] In this embodiment, the device assembly can be fixed on the workbench through T-slots and bolts, which is easy to disassemble and install and stable and convenient to use.

[0038] The positioning support seat weld 3 is connected to the base 1 via a second screw 18 .

[0039] Furthermore, a groove structure is provided on the base 1, and a protrusion structure is provided at the bottom of the positioning support seat weld 3, and the protrusion structure of the positioning support seat weld 3 is adapted to the groove structure of the base 1; the positioning support seat weld 3 is positioned and connected to the base through a circular positioning pin 2.

[0040] In this embodiment, a groove structure is provided in the middle of the upper part of the base 1, and a protrusion structure is provided in the middle of the bottom of the positioning support seat weld 3. The protrusion structure of the positioning support seat weld 3 is adapted to the groove structure of the base 1. Such an arrangement facilitates the positioning function of the base 1 and the positioning support seat weld 3.

[0041] Positioning holes are provided on the positioning support seat weld 3 and the base 1. When the protruding structure of the positioning support seat weld 3 cooperates with the groove structure of the base 1, the positioning holes of the positioning support seat weld 3 and the base 1 are aligned by adjusting the positioning support seat weld 3 and the base 1, and then the circular positioning pin 2 is set in the positioning hole on the positioning support seat weld 3 and the base 1, so as to achieve precise positioning of the two.

[0042] Furthermore, the outer wall of the positioning support seat weld 3 abuts against the inner wall of the wheel-side reducer shell, the wheel-side reducer shell is provided with an annular edge, the annular edge is provided with a wheel-side reducer shell mounting hole, the base 1 is provided with a base 1 mounting hole, and the second positioning pin 12 passes through the wheel-side reducer shell mounting hole and the base 1 mounting hole to position and connect the wheel-side reducer shell and the base 1.

[0043] Furthermore, the support pads 11 are provided in plurality, and the heights of the plurality of support pads 11 are uniformly arranged on the circumference of the positioning mandrel 10 at the top of the positioning support seat weld 3. In this embodiment, the four support pads 11 used by the planet carrier are ground simultaneously to better ensure the consistency of the height and flatness of the upper and lower end surfaces.

[0044] Furthermore, the positioning mandrel 10 and the positioning support seat weld 3 are assembled together in an interference fit manner, and the bottom of the positioning mandrel 10 and the bottom of the positioning support seat weld 3 are connected by a first screw 16 .

[0045] Furthermore, the connecting structure includes a first nut 7, a first bolt and a third nut 8, the first bolt is arranged on the upper part of the clamping pad 6, the first nut 7 is arranged at the end of the first bolt close to the clamping pad 6, the end of the first bolt away from the first nut 7 extends vertically to the outside of the wheel-side reducer housing, and is connected to the wheel-side reducer housing cover 9 through the third nut 8 arranged on the outside of the wheel-side reducer housing cover 9; the first bolt and the axis of the positioning core shaft 10 are in the same straight line.

[0046] Furthermore, the planet carrier is provided with a prefabricated hole, the top of the positioning support seat weld 3 is provided with a positioning hole, and the first positioning pin 4 passes through the prefabricated hole and the positioning hole to position and connect the planet carrier and the positioning support seat weld 3.

[0047] The planet carrier is placed on the support pad 11 and positioned by the positioning mandrel 10, the positioning cover 5, and the first positioning pin 4, and is separately compressed by the first bolt and the first nut 7 to complete the partial dimensions of the planet carrier that do not require combined processing, and the compressed planet carrier is kept stationary, and the wheel-side reducer shell is positioned by the second positioning pin 12 and the positioning support seat welding 3, and is compressed by the wheel-side reducer cover to complete the partial dimensions of the wheel-side reducer shell that do not require combined processing. In this way, the planet carrier and the wheel-side reducer shell can be processed separately and in combination, which reflects the multi-purpose feature of one tool. In addition, with such a setting, using a positioning mandrel 10 can realize the unified positioning of the wheel-side reducer shell and the planet carrier, and increase the positioning accuracy.

[0048] Furthermore, a plurality of double-headed screws 13 are provided at the bottom of the base 1, and a second nut 14 is provided on the double-headed screw 13, and a spring washer 15 is provided at the contact position between the second nut 14 and the base 1. The double-headed screw 13 and the second nut 14 are used together to fix the clamping and positioning device on a workbench or a machine tool for use, so as to ensure the stability of the device during use.

[0049] Furthermore, a positioning guide key 17 is provided at the bottom of the base 1, and the positioning guide key 17 is connected to the base 1 through a first screw 16. The positioning guide key 17 is used to position the device when it is installed on a workbench or a machine tool.

[0050] In a second aspect of the present invention, a method for using a housing assembly processing clamping and positioning device is provided, comprising:

[0051] Fix the device base 1 on the workbench, connect the positioning mandrel 10 with the positioning support seat 3 by welding, and then place it on the base 1, so that the protrusion structure of the positioning support seat welding 3 is matched with the groove structure of the base 1;

[0052] A plurality of support blocks 11 with the same height are arranged on the circumferential side of the positioning core shaft 10 at the top of the positioning support seat weld 3, a planetary carrier is arranged on the upper part of the plurality of support blocks 11 through the positioning core shaft 10, the planetary carrier is positioned and connected with the positioning support seat weld 3 by passing the first positioning pin 4 through the prefabricated hole on the planetary carrier and the positioning hole on the positioning support seat weld 3, and a positioning gland 5 is arranged on the upper part of the planetary carrier to match the positioning core shaft 10, so that the axis of the first bolt and the positioning core shaft 10 are in the same straight line; the planetary carrier and the positioning gland 5, the positioning gland 5 and the positioning core shaft 10 are matched through a small gap to realize the center positioning of the planetary carrier, and then the positioning of the planetary carrier is completed by the small gap matching between the first positioning pin 4 and the prefabricated hole of the planetary carrier, and the first positioning pin 4 and the positioning hole of the positioning support seat weld 3;

[0053] A clamping pad 6 is arranged on the upper part of the positioning gland 5, a first bolt is arranged on the upper part of the clamping pad 6 for connection, and a first nut 7 is arranged at one end of the first bolt close to the positioning gland 5 for tightening; one end of the first bolt away from the first nut 7 vertically extends to the outside of the wheel-side reducer housing, and is connected and fixed to the wheel-side reducer housing gland 9 through a third nut 8 arranged outside the wheel-side reducer housing gland 9;

[0054] The wheel-side reducer shell is set on the positioning support seat weld 3, so that the inner wall of the wheel-side reducer shell abuts against the outer wall of the positioning support seat weld 3, and the second positioning pin 12 passes through the wheel-side reducer shell mounting hole and the base 1 mounting hole to position and connect the wheel-side reducer shell and the base 1; the wheel-side reducer shell and the outer circle of the lower end of the support seat weld are matched through a small gap to achieve the center positioning of the wheel-side reducer shell, and then the second positioning pin 12 and the mounting hole of the wheel-side reducer shell, and the second positioning pin 12 and the mounting hole of the base 1 are matched with a small gap to complete the positioning of the wheel-side reducer shell;

[0055] Start processing parts.

[0056] The shell combined processing clamping positioning device and the use method provided by the present invention can realize the unified positioning of the wheel side reducer shell and the planetary carrier by using a positioning mandrel, increase the positioning accuracy, complete the separate processing and combined processing of the planetary carrier and the wheel side reducer shell, and has the characteristics of one tool for multiple uses. The application of the device enhances the processing accuracy of the machine tool, improves the processing quality of the workpiece, improves the processing efficiency, has a simple structure, is easy to maintain, and has a long service life.

[0057] In addition, the four supporting pads used by the planetary carrier are made by simultaneous grinding, which better ensures the consistency of the height and flatness of the upper and lower end surfaces, thereby ensuring the quality accuracy of the parts processing;

[0058] The planet carrier positioning and wheel reducer housing positioning of the clamping positioning device are locked with positioning pins respectively, which is convenient for positioning.

[0059] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A housing assembly processing clamping and positioning device, characterized in that: It includes a base, on which a positioning support seat is welded, on which a wheel-side reducer shell is welded, and the wheel-side reducer shell and the base are positioned and connected by a second positioning pin; a supporting pad is provided on the positioning support seat welded inside the wheel-side reducer shell, on which a planetary carrier is provided, and on which a positioning pressure cover is provided, a positioning core shaft is passed through the middle of the positioning pressure cover, the planetary carrier and the positioning support seat weld, and the planetary carrier and the positioning support seat weld are connected by a first positioning pin; a clamping pad is provided on the positioning pressure cover, and a connecting structure is provided on the clamping pad, and the connecting structure extends vertically to the outside of the wheel-side reducer shell and is connected to the wheel-side reducer shell pressure cover.

2. A housing assembly processing clamping and positioning device as claimed in claim 1, characterized in that: The base is provided with a groove structure, and the bottom of the welded positioning support seat is provided with a protrusion structure, and the protrusion structure of the welded positioning support seat is compatible with the groove structure of the base; the welded positioning support seat is positioned and connected to the base through a circular positioning pin.

3. A housing assembly processing clamping and positioning device as claimed in claim 1, characterized in that: The welded outer wall of the positioning support seat abuts against the inner wall of the wheel-side reducer shell, the wheel-side reducer shell is provided with an annular edge, the annular edge is provided with a wheel-side reducer shell mounting hole, the base is provided with a base mounting hole, and the second positioning pin passes through the wheel-side reducer shell mounting hole and the base mounting hole to position and connect the wheel-side reducer shell and the base.

4. A housing assembly processing clamping and positioning device as claimed in claim 1, characterized in that: The support pads are provided in plurality, and the heights of the plurality of support pads are consistent and arranged on the peripheral side of the positioning core shaft at the top of the positioning support seat welded thereto.

5. The housing assembly processing clamping and positioning device according to claim 1, characterized in that: The positioning mandrel and the positioning support seat are welded together in an interference fit manner, and the bottom of the positioning mandrel and the welded bottom of the positioning support seat are connected by a first screw.

6. The housing assembly processing clamping and positioning device according to claim 1, characterized in that: The connecting structure includes a first nut, a first bolt and a third nut. The first bolt is arranged on the upper part of the clamping pad, the first nut is arranged at one end of the first bolt close to the clamping pad, the end of the first bolt away from the first nut vertically extends to the outside of the wheel-side reducer housing, and is connected to the wheel-side reducer housing cover through the third nut arranged on the outside of the wheel-side reducer housing cover; the first bolt and the axis of the positioning core shaft are in the same straight line.

7. A housing assembly processing clamping and positioning device as claimed in claim 1, characterized in that: The planet carrier is provided with a prefabricated hole, the welded top of the positioning support seat is provided with a positioning hole, and the first positioning pin passes through the prefabricated hole and the positioning hole to weld the planet carrier and the positioning support seat for positioning connection.

8. The housing assembly processing clamping and positioning device according to claim 1, characterized in that: A plurality of double-headed screws are arranged at the bottom of the base, a second nut is arranged on the double-headed screw, and a spring washer is arranged at the contact position between the second nut and the base.

9. The housing assembly processing clamping and positioning device according to claim 1, characterized in that: A positioning guide key is provided at the bottom of the base, and the positioning guide key is connected to the base through a first screw.

10. A method for using a housing assembly processing clamping and positioning device as claimed in any one of claims 1 to 9, characterized in that: include: Fix the device base on the workbench, weld the positioning mandrel and the positioning support seat together, and then place them on the base, so that the welded protrusion structure of the positioning support seat matches the groove structure of the base; A plurality of support pads with the same height are arranged on the peripheral side of the positioning core shaft at the top of the positioning support seat welded together, a planetary carrier is arranged on the upper part of the plurality of support pads through the positioning core shaft, the planetary carrier is welded and connected with the positioning support seat by passing the first positioning pin through the prefabricated hole on the planetary carrier and the positioning hole on the positioning support seat welded together, and a positioning gland is arranged on the upper part of the planetary carrier to match the positioning core shaft, so that the axis of the first bolt and the positioning core shaft are in the same straight line; the planetary carrier and the positioning gland, the positioning gland and the positioning core shaft are matched through a small gap to realize the center positioning of the planetary carrier, and then the positioning of the planetary carrier is completed by the small gap matching between the first positioning pin and the prefabricated hole of the planetary carrier, and the first positioning pin and the positioning hole of the positioning support seat welded together; A clamping pad is arranged on the upper part of the positioning gland, a first bolt is arranged on the upper part of the clamping pad for connection, and a first nut is arranged at one end of the first bolt close to the positioning gland for tightening; one end of the first bolt away from the first nut vertically extends to the outside of the wheel-side reducer housing, and is connected and fixed to the wheel-side reducer housing gland by a third nut arranged outside the wheel-side reducer housing gland; The wheel-side reducer shell is arranged on the welded positioning support seat, so that the inner wall of the wheel-side reducer shell abuts against the welded outer wall of the positioning support seat, and the second positioning pin passes through the mounting hole of the wheel-side reducer shell and the mounting hole of the base to position and connect the wheel-side reducer shell and the base; the outer circle of the lower end of the wheel-side reducer shell and the support seat weld is matched with a small gap to realize the center positioning of the wheel-side reducer shell, and then the second positioning pin is matched with the mounting hole of the wheel-side reducer shell and the small gap between the second positioning pin and the mounting hole of the base to complete the positioning of the wheel-side reducer shell; Start processing parts.

Images