Tool for machining and local quenching of motor rotating shaft

Abstract

The utility model discloses a tool for machining and local quenching of a motor rotating shaft, and relates to the technical field of quenching. The device comprises a base, a limiting groove is formed in the top end of the base, a first supporting rod is rotationally arranged at the top end of the base, a supporting disc is arranged at the top end of the first supporting rod, four second supporting rods are rotationally arranged at the bottom end of the supporting disc, and pneumatic clamps for clamping and limiting a motor rotating shaft body are arranged at the bottom ends of the second supporting rods. The base is provided with a feeding station, a heating station, a cooling station and a discharging station which are used for conducting integrated machining on the motor rotating shaft body. The base, the rotary supporting mechanism and the four-station layout are adopted, automatic circulation of workpieces is achieved through the driving component, manual intervention is not needed in the whole process from heating, cooling to discharging, the specially-designed collecting box is provided with a buffering brush, the scalding risk possibly caused by manual workpiece taking is avoided, and the problem of high cost of workpiece taking through a mechanical arm is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to quenching technical field, concretely relates to a kind of tool for motor rotating shaft processing local quenching. BACKGROUND

[0002] The shaft of motor rotor needs to be quenched before finishing forming to improve material performance, in order to ensure the safety of quenching production, when the cylindrical products such as shafts are quenched and heat treated by medium frequency or high frequency, a circular heating inductor is usually used to ensure uniform heating on the surface of the shaft.

[0003] After quenching processing of motor rotating shaft, cooling structure is used for cooling processing, but the temperature of motor rotating shaft is still high after cooling, and the motor rotating shaft is clamped and limited by clamp during quenching processing, and manual unloading or mechanical arm unloading is needed after quenching processing, manual unloading is low in efficiency and easy to scald workers, mechanical arm unloading is high in cost, and in addition, the motor rotating shaft is usually soaked in water or sprayed with water mist on its surface during quenching and cooling, which makes it cool too fast, causes sharp temperature difference and is easy to cause cracks or deformation.

[0004] Therefore, a tool for motor rotating shaft processing local quenching is provided. UTILITY MODEL CONTENTS

[0005] To solve the problems in the prior art, the utility model provides a tool for motor rotating shaft processing local quenching.

[0006] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0007] A kind of motor shaft processing local quenching with tool, including base, the top of the base is equipped with limiting slot, the top of the base is rotatably provided with first support rod, the top of the first support rod is provided with support disc, the bottom of the support disc is rotatably provided with four second support rods, the bottom of the second support rod is provided with pneumatic clamp for clamping and limiting motor shaft body, the base is provided with feeding station, heating station, cooling station and discharging station for integrated processing of the motor shaft body, the heating station is provided with heating component for heating processing of motor shaft body, the heating component includes first electric telescopic rod and heating coil connected with telescopic end, the cooling station is provided with cooling component for cooling processing of motor shaft body, the cooling component includes water tank, support seat, hot air blower, first connecting pipe, cooling ring, water pump, second connecting pipe and second electric telescopic rod, the discharging station is provided with collection box for collecting motor shaft body after cold extraction processing, the base and support disc are provided with driving component for driving first support rod and second support rod to rotate, the driving component includes first gear and second gear engaged with each other and motor.

[0008] Further, the limiting slot is provided in the discharging station, which is a ring groove, the collection box is adapted with the limiting slot, and the inside of the collection box is provided with a plurality of brushes arranged in a circumferential direction.

[0009] Further, the heating coil is annular in design, with its central axis coinciding with the axis of the motor shaft body to ensure uniform heating.

[0010] Further, the support seat is provided at the top of the water tank, and the hot air blower, water pump and second electric telescopic rod are all provided on the support seat, the cooling ring is connected with the telescopic end of the second electric telescopic rod, and the hot air blower and water pump are connected with the cooling ring through the first connecting pipe and the second connecting pipe respectively.

[0011] Further, the first connecting pipe and the second connecting pipe are both provided in an extendable manner.

[0012] Further, the cooling ring is a hollow annular structure, with through holes formed in the inner wall side, and atomizing nozzles are installed through the through holes, and the central axis of the cooling ring coincides with the axis of the motor shaft body to ensure uniform cooling.

[0013] Further, the pneumatic clamp includes two symmetrical arc-shaped clamps, the inner side of the arc-shaped clamp is provided with a high-temperature-resistant rubber pad, the pneumatic clamp is connected with an external air source through an air pipe, and the air pipe is provided with a pressure regulating valve.

[0014] Further, the second gear is connected with a main shaft end of the motor, the driving member for driving the first supporting rod to rotate further comprises an encoder connected with the main shaft end of the motor, for feeding back the rotation angle in real time, so as to control the motor rotating shaft body to rotate accurately to different machining stations.

[0015] The utility model discloses the following beneficial effects:

[0016] 1. The utility model discloses a base, rotating support mechanism and four position layout, realize the automatic flow of workpiece through driving member, from heating, cooling to the whole process of discharging without manual intervention, specially designed collection box is equipped with buffer brush, both avoid the scalding risk that the manual work may cause, and eliminate the high -cost problem of mechanical arm taking.

[0017] 2. The utility model discloses cooling member that sets up combines gas cooling with liquid cooling, first through the hot -blast machine preheats the air cooling, makes the workpiece temperature gentle drop, then through the water pump liquid pumping mode and sprays the water mist from the cooling ring, combines the effect of driving member, and the motor rotating shaft body constantly rotates, can realize its uniform cooling, and this gradual cooling process effectively controls the internal stress of workpiece, avoids the crack and deformation caused by the sharp temperature difference, significantly improves the quenching processing quality and product pass rate, reduces the cost of subsequent finish machining simultaneously. DRAWINGS

[0018] Figure 1 It is one of the utility model three -dimensional structure schematic diagram;

[0019] Figure 2 It is the second three -dimensional structure schematic diagram of the utility model;

[0020] Figure 3 It is the collection box structure schematic diagram of the utility model;

[0021] Figure 4 It is the driving member and pneumatic clamp structure schematic diagram of the utility model;

[0022] Figure 5 It is the cooling member structure schematic diagram of the utility model.

[0023] Drawing reference: 1, base;101, limit slot;2, first supporting rod;201, support disc;3, collection box;301, brush;4, first electric telescopic rod;401, heating coil;5, cooling member;501, water tank;502, support seat;503, hot -blast machine;504, first connecting pipe;505, cooling ring;506, water pump;507, second connecting pipe;508, second electric telescopic rod;6, driving member;601, first gear;602, second gear;603, motor;7, second supporting rod;8, pneumatic clamp;9, motor rotating shaft body. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0026] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present application, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings, or the directions or position relationships of the product of the present application when it is usually placed, which are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular direction, be constructed and operated in a particular direction, therefore, cannot be understood as a limitation on the present application. Embodiment one

[0028] As Figures 1-5As shown, a kind of motor rotating shaft processing local quenching tool, including base 1, the top of the base 1 is equipped with limiting groove 101, the top of the base 1 is rotatably provided with first support rod 2, the top of the first support rod 2 is provided with support disc 201, the bottom of the support disc 201 is rotatably provided with four second support rods 7, the bottom of the second support rod 7 is provided with pneumatic clamp 8 for clamping and limiting motor rotating shaft body 9, the base 1 is provided with feeding station, heating station, cooling station and discharging station for integrated processing of the motor rotating shaft body 9, the heating station is provided with heating component for heating processing of motor rotating shaft body 9, the heating component includes first electric telescopic rod 4 and heating coil 401 connected with telescopic end, the cooling station is provided with cooling component 5 for cooling processing of motor rotating shaft body 9, the cooling component 5 includes water tank 501, support seat 502, hot air blower 503, first connecting pipe 504, cooling ring 505, water pump 506, second connecting pipe 507 and second electric telescopic rod 508, the discharging station is provided with collection tank 3 for collecting motor rotating shaft body 9 after cold extraction processing, the base 1 and support disc 201 are provided with driving component 6 for driving first support rod 2 and second support rod 7 to rotate, the driving component 6 includes first gear 601 and second gear 602 engaged with each other and motor 603;Specifically, the cooling component 5 includes air cooling module and liquid cooling module for pneumatic cooling and liquid cooling of motor rotating shaft body 9.

[0029] As Figure 5 shown, the support seat 502 is arranged at the top of the water tank 501, the hot air blower 503, the water pump 506 and the second electric telescopic rod 508 are all arranged on the support seat 502, the cooling ring 505 is connected with the telescopic end of the second electric telescopic rod 508, and the hot air blower 503 and the water pump 506 are connected with the cooling ring 505 through the first connecting pipe 504 and the second connecting pipe 507 respectively;Specifically, the air cooling module includes the hot air blower 503, the first connecting pipe 504 and the cooling ring 505, the liquid cooling module includes the water pump 506, the second connecting pipe 507 and the cooling ring 505, after heating of the motor rotating shaft body 9 is completed, the air cooling module can be used to preliminarily dissipate heat of the motor rotating shaft body 9, the hot air blower 503 is selected from controllable wind temperature type, which is not limited this time, and when dissipating heat, blowing by the hot air blower 503 can avoid cracking of the motor rotating shaft body 9 due to rapid cooling, and then the liquid cooling module is used to finally dissipate heat, a circulating cooling structure can be arranged in the water tank 501 to ensure stable water temperature in the water tank 501 and cooling liquid temperature, and the circulating cooling structure can adopt a heat exchanger, which will not be described in detail here.

[0030] As Figure 5 shown, the first connecting pipe 504 and the second connecting pipe 507 are both telescopically arranged.

[0031] As Figure 5 shown, the cooling ring 505 is a ring-shaped hollow structure, the inner wall side is provided with a through hole, the atomizing nozzle is installed through the through hole, the central axis of the cooling ring 505 coincides with the axis of the motor shaft body 9, to ensure the uniformity of cooling; Specifically, when air cooling is carried out, the hot air fan 503 can uniformly spray hot air on the surface of the motor shaft body 9 through the atomizing nozzle, and under the action of the driving member 6, the second supporting rod 7 rotates, which can drive the motor shaft body 9 to rotate, so that the surface of the motor shaft body 9 can be uniformly cooled. After air cooling, liquid cooling is used for cooling, the water pump 506 works to pump out the cooling liquid in the water tank 501, and then uniformly sprays it on the surface of the motor shaft body 9 through the atomizing nozzle, realizing secondary cooling. In the cooling process, a timer or the like can be used to control the cooling time of different cooling methods to ensure the cooling effect. Example two

[0032] As Figures 1-5 shown, a tool for local quenching of motor shaft machining, comprising a base 1, a limiting groove 101 is formed at the top end of the base 1, a first supporting rod 2 is rotatably arranged at the top end of the base 1, a supporting disc 201 is arranged at the top end of the first supporting rod 2, four second supporting rods 7 are rotatably arranged at the bottom end of the supporting disc 201, pneumatic clamps 8 are arranged at the bottom end of the second supporting rods 7 to clamp and limit the motor shaft body 9, an upper feeding station, a heating station, a cooling station and a lower discharging station are arranged on the base 1 to integrally process the motor shaft body 9, a heating member is arranged on the heating station to heat and process the motor shaft body 9, the heating member comprises a first electric telescopic rod 4 and a heating coil 401 connected with the telescopic end of the first electric telescopic rod 4, a cooling member 5 is arranged on the cooling station to cool and process the motor shaft body 9, the cooling member 5 comprises a water tank 501, a supporting seat 502, a hot air fan 503, a first connecting pipe 504, a cooling ring 505, a water pump 506, a second connecting pipe 507 and a second electric telescopic rod 508, a collection tank 3 is arranged on the lower discharging station to collect the motor shaft body 9 after cold brewing processing, a driving member 6 is arranged on the base 1 and the supporting disc 201 to drive the first supporting rod 2 and the second supporting rod 7 to rotate, the driving member 6 comprises a first gear 601 and a second gear 602 which are engaged with each other and an electric motor 603; Specifically, the driving member 6 can drive the supporting disc 201 to rotate, so as to drive the motor shaft body 9 to rotate, thereby rotating the motor shaft body 9 to different processing stations of the upper feeding station, the heating station, the cooling station and the lower discharging station, ensuring the coherence of the whole processing, and automatically discharging when rotating to the lower discharging station, so as not to manually take out the material, thereby avoiding scalding the workers.

[0033] As shown in Figure 3 The limiting groove 101 is arranged at the discharging station, which is a ring-shaped groove, and the collecting box 3 is connected with the limiting groove 101. The inside of the collecting box 3 is provided with a plurality of brushes 301 arranged in a circumferential direction. Specifically, the brushes 301 can reduce the falling speed of the motor shaft body 9, thereby avoiding damage when the motor shaft body 9 falls from a high place.

[0034] As shown in Figures 1-2 The heating coil 401 is annular, and the central axis coincides with the axis of the motor shaft body 9 to ensure uniform heating. A temperature sensor is arranged on the heating coil 401 to monitor the heating temperature in real time and ensure accurate control of the heating temperature. The specific installation position can be adjusted according to actual use, and the position, structure and type are not limited here.

[0035] As shown in Figure 4 The second gear 602 is connected with the main shaft end of the motor 603. The driving member 6 for driving the first support rod 2 to rotate further includes an encoder connected with the main shaft end of the motor 603 for real-time feedback of the rotation angle, thereby controlling the motor shaft body 9 to rotate accurately to different processing stations. Specifically, the encoder is used to feed back the rotation angle in real time, which can ensure that the motor shaft body 9 smoothly passes between each station. The driving member 6 at the position of the second support rod 7 can drive the pneumatic clamp 8 to rotate, thereby also achieving the rotation of the motor shaft body 9. Therefore, during subsequent cooling processing, uniform cooling of the motor shaft body 9 can be ensured.

[0036] As shown in Figure 4 The pneumatic clamp 8 includes two symmetrical arc-shaped clamps. High-temperature-resistant rubber pads are arranged on the inner sides of the arc-shaped clamps. The pneumatic clamp 8 is connected with an external air source through an air pipe, and a pressure regulating valve is arranged on the air pipe. Specifically, the high-temperature-resistant rubber pads can protect the surface of the motor shaft body 9 from being damaged and provide good clamping force. The pressure regulating valve can adjust the clamping force of the pneumatic clamp 8 to ensure moderate clamping force. The pneumatic clamp 8 is controlled independently. When the motor shaft body 9 rotates to the discharging station, the pneumatic clamp 8 releases the clamping of the motor shaft body 9, thereby achieving automatic discharging.

[0037] In summary: the motor 603 of the driving member 6 drives the first support rod 2 to rotate through the first gear 601 and the second gear 602 in meshing, and makes the support disc 201 and the motor shaft body 9 thereon pass through four processing stations in turn. After the motor shaft body 9 is clamped in the feeding station, the motor shaft body 9 firstly enters the heating station. The heating member is composed of the first electric telescopic rod 4 and the annular heating coil 401. The heating coil 401 is coaxially arranged with the motor shaft body 9, so that uniform heating is ensured. The first electric telescopic rod 4 can adjust the position of the heating coil 401, so that the heating position is adjusted.

[0038] After heating, the motor shaft body 9 enters the cooling station. The cooling member adopts a composite cooling mode combining air cooling and liquid cooling. The cooling member 5 comprises a water tank 501, a support seat 502, a hot air blower 503, a water pump 506 and a cooling ring 505. The cooling ring 505 is a hollow annular structure, and the inner wall is provided with an atomizing nozzle. The hot air blower 503 blows hot air to the workpiece through the first connecting pipe 504 to preliminarily cool the workpiece. Then, the water pump 506 delivers the cooling liquid to the cooling ring 505 through the second connecting pipe 507 to finally cool the workpiece. The second electric telescopic rod 508 can adjust the position of the cooling ring 505, so that the cooling effect is ensured. During the whole cooling process, the motor shaft body 9 continuously rotates under the driving of the driving member 6, so that the cooling uniformity is ensured.

[0039] Finally, the motor shaft body 9 after quenching enters the discharging station. The pneumatic clamp 8 cancels the limiting of the motor shaft body 9. The motor shaft body 9 is free and bare under the action of gravity. The collecting box 3 is provided with a brush 301, which can buffer the impact when the workpiece falls, so that damage is avoided. The limiting groove 101 and the collecting box 3 are designed in a clamping mode, so that the assembling and disassembling are facilitated.

[0040] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above examples. The above examples and the description in the specification are only the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements. These changes and improvements fall within the scope of the utility model. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A jig for local quenching of a rotating shaft of an electric machine, characterized by: The utility model provides a cold extraction processing device for motor shaft body, including base (1), the top of base (1) is provided with limiting slot (101), the top of base (1) is provided with first support rod (2) rotationally, the top of first support rod (2) is provided with support disc (201), the bottom of support disc (201) is provided with four second support rod (7) rotationally, the bottom of second support rod (7) is provided with pneumatic fixture (8) and is clamped to the limiting of motor shaft body (9), be provided with the feeding station of the integrated processing of motor shaft body (9) on base (1), heating station, cooling station and discharging station, be provided with heating component on heating station and is heated to the processing of motor shaft body (9), heating component includes first electric telescopic handle (4) and the heating coil (401) of telescopic end connection, be provided with cooling component (5) on cooling station and is cooled to the processing of motor shaft body (9), cooling component (5) includes water tank (501), support seat (502), hot air machine (503), first connecting pipe (504), cooling ring (505), water pump (506), second connecting pipe (507) and second electric telescopic handle (508), be provided with collection box (3) on discharging station and is collected to the motor shaft body (9) of cold extraction processing completion, be provided with drive component (6) on base (1) and support disc (201) and drive first support rod (2) and second support rod (7) rotationally, drive component (6) includes first gear (601) and second gear (602) and motor (603) of intermeshing.

2. The jig for partial quenching of a motor shaft machining according to claim 1, wherein The limiting slot (101) is provided in the discharging station, which is a ring-shaped groove. The collection box (3) is adapted to the limiting slot (101) by clamping. The inside of the collection box (3) is provided with a plurality of brushes (301) arranged in a circular manner.

3. The jig for partial quenching of a motor shaft according to claim 1, wherein The heating coil (401) is annular in design, and its central axis coincides with the axis of the motor shaft body (9), to ensure uniform heating.

4. The jig for partial quenching for machining of a rotating shaft of an electric machine according to claim 1, wherein The support seat (502) is provided at the top of the water tank (501). The hot air machine (503), the water pump (506), and the second electric telescopic handle (508) are all provided on the support seat (502). The cooling ring (505) is connected with the telescopic end of the second electric telescopic handle (508). The hot air machine (503) and the water pump (506) are connected with the cooling ring (505) through the first connecting pipe (504) and the second connecting pipe (507) respectively.

5. The jig for partial quenching of a motor shaft according to claim 1, wherein The first connecting pipe (504) and the second connecting pipe (507) are both telescopic.

6. The jig for partial quenching of a motor shaft machining according to claim 1, wherein The cooling ring (505) is a ring-shaped hollow structure, and a through hole is formed in the inner wall side of the cooling ring (505). An atomizing nozzle is installed through the through hole. The central axis of the cooling ring (505) coincides with the axis of the motor shaft body (9), to ensure uniform cooling.

7. The jig for partial quenching of a motor shaft machining according to claim 1, wherein The pneumatic clamp (8) comprises two symmetrical arc-shaped clamps, the inner side of the arc-shaped clamps is provided with high-temperature-resistant rubber pads, the pneumatic clamp (8) is connected with an external air source through an air pipe, and a pressure regulating valve is arranged on the air pipe.

8. The jig for partial quenching of a motor shaft machining according to claim 1, wherein The second gear (602) is connected with the main shaft end of the motor (603), the driving member (6) for driving the first supporting rod (2) to rotate further comprises an encoder, the encoder is connected with the main shaft end of the motor (603), and is used for feeding back the rotation angle in real time, so that the motor rotating shaft body (9) can be accurately rotated to different machining stations.

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