CN220183336U - High-frequency quenching device for blind hole internal spline - Google Patents
High-frequency quenching device for blind hole internal spline Download PDFInfo
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- CN220183336U CN220183336U CN202321682743.2U CN202321682743U CN220183336U CN 220183336 U CN220183336 U CN 220183336U CN 202321682743 U CN202321682743 U CN 202321682743U CN 220183336 U CN220183336 U CN 220183336U
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- internal spline
- induction coil
- blind hole
- quenching
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- 238000010791 quenching Methods 0.000 title claims abstract description 50
- 230000000171 quenching effect Effects 0.000 title claims abstract description 49
- 230000006698 induction Effects 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 abstract 3
- 239000000110 cooling liquid Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model relates to a high-frequency quenching device for a blind hole internal spline, belonging to the technical field of machining; the technical problems to be solved are as follows: the high-frequency quenching device for the internal spline of the blind hole is high in high-frequency quenching quality, uniform in hardness in the blind hole and free of cracking; the technical scheme adopted is as follows: a three-jaw chuck clamping device for pressing from both sides tight work piece upper end fixed mounting is in the workstation top, install the rotary mechanism who drives work piece rotation on the three-jaw chuck clamping device, quenching elevating gear fixed mounting is on the workstation, quenching elevating gear internally mounted has power supply system, scanning type internal spline induction coil is non-closed ring structure, the horizontal pole free end of two L electric tubes is fixed in quenching elevating gear's upper end and is connected with power supply system, the montant free end of two L electric tubes is vertical up and connect scanning type internal spline induction coil's both ends, scanning type internal spline induction coil corresponds and is located three-jaw chuck clamping device under.
Description
Technical Field
The utility model discloses a high-frequency quenching device for a blind hole internal spline, belongs to the technical field of machining, and particularly relates to high-frequency quenching for a blind hole internal spline.
Background
The current small blind hole internal spline high-frequency quenching at home and abroad uses an upward-arranged structure as shown in figure 5, the blind hole faces upward, the high-quenching device heats water at the upper part, the high-frequency induction heating coil is difficult to manufacture because the diameter of the inner hole is less than phi 50, the heating coil stretches into the internal spline from the upper part during high-frequency quenching, the temperature is heated to 850-900 ℃, the heating coil is removed, cooling liquid is sprayed, the orifice and the root of the internal spline are easy to crack due to severe temperature change, the cooling liquid can only overflow after being filled, water is easy to accumulate in the blind hole, and when the induction heating coil does not reach the required temperature, the cooling liquid cools the high-frequency induction coil, so that the workpiece cannot reach the quenching temperature, and the high-frequency requirement of the workpiece cannot be ensured. The problem is always an industrial problem, and the internal spline is easy to crack after high frequency, the hardness cannot guarantee the requirement, and the like, so that the workpiece is often scrapped, has no hardness, and cannot be subjected to the next working procedure.
Disclosure of Invention
The utility model overcomes the defects existing in the prior art, and solves the technical problems that: the high-frequency quenching device for the internal spline of the blind hole is high in high-frequency quenching quality, uniform in hardness in the blind hole and free of cracking.
In order to solve the technical problems, the utility model adopts the following technical scheme: the blind hole internal spline high-frequency quenching device comprises a three-jaw chuck clamping device, a quenching lifting device, L conductive pipes and a scanning type internal spline induction coil, wherein the three-jaw chuck clamping device used for clamping the upper end of a workpiece is fixedly arranged above a workbench, a rotating mechanism used for driving the workpiece to rotate is arranged on the three-jaw chuck clamping device, the quenching lifting device is fixedly arranged on the workbench, a power supply system is arranged in the quenching lifting device, the scanning type internal spline induction coil is of a non-closed circular ring structure, the free ends of transverse rods of the two L conductive pipes are fixed at the upper end of the quenching lifting device and are connected with the power supply system, the free ends of vertical rods of the two L conductive pipes are vertically upwards and are connected with the two ends of the scanning type internal spline induction coil, the two L conductive pipes and the scanning type internal spline induction coil form an electrifying loop of the power supply system, and the scanning type internal spline induction coil is correspondingly positioned under the three-jaw chuck clamping device.
The scanning type internal spline induction coil is characterized in that a plurality of magnetic conduction blocks are sleeved on the non-closed annular tube body.
The L-shaped conductive pipe and the non-closed annular pipe body are hollow conductive pipe bodies, the inner cavity of the L-shaped conductive pipe is communicated with the inner cavity of the non-closed annular pipe body, a plurality of liquid spraying holes which are arranged in a crossed arrangement are formed in the lower portion of the outer side of the non-closed annular pipe body, and the inner cavity of the cross rod of the L-shaped conductive pipe is communicated with a water supply device.
The bottom of the quenching lifting device is arranged on the workbench through a rotating device.
And a center frame for preventing the workpiece from falling is arranged right below the three-jaw chuck clamping device.
Compared with the prior art, the utility model has the following beneficial effects: the scanning type internal spline induction coil extends upwards to the inside of the blind hole to heat through the downward setting of the blind hole, so that the phenomenon that the quenching temperature cannot meet the requirement due to the fact that high-frequency quenching cooling liquid is accumulated in the blind hole is avoided, the quenching quality is improved, the hardness of the inside of the machined blind hole is uniform, and the surface of the machined blind hole is free of cracking; the scanning type internal spline induction coil is provided with the liquid spraying holes for spraying the cooling liquid, the cooling liquid is uniformly sprayed while the high-frequency quenching is performed, meanwhile, the high-frequency quenching work of the coil is not affected, and the scanning type internal spline induction coil is convenient and efficient to use.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings;
FIG. 1 is a schematic structural view of a blind hole internal spline high-frequency quenching device;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic bottom view of a scanned internal spline induction coil according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a non-closed loop tube of a scanned internal spline induction coil according to the present utility model
Fig. 5 is a schematic view showing a structure of a conventional induction hardening apparatus;
in the figure: the three-jaw chuck clamping device comprises a three-jaw chuck clamping device 1, a quenching lifting device 2, an L-shaped conductive pipe 3, a scanning type internal spline induction coil 4, a non-closed annular pipe body 5, a liquid spraying hole 6, a central frame 7 and a magnetic conduction block 8.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in figures 1-4, the blind hole internal spline high-frequency quenching device comprises a three-jaw chuck clamping device 1, a quenching lifting device 2, an L conductive pipe 3 and a scanning type internal spline induction coil 4, wherein the three-jaw chuck clamping device 1 used for clamping the upper end of a workpiece is fixedly arranged above a workbench, a rotating mechanism used for driving the workpiece to rotate is arranged on the three-jaw chuck clamping device 1, the three-jaw chuck clamping device 1 is used for clamping a workpiece shaft to be suspended on the workbench, and a driving shaft body is slowly rotated at a constant speed in blind hole internal spline high-frequency quenching operation at the lower end of the workpiece shaft, so that the scanning type internal spline induction coil 4 can uniformly and comprehensively heat the inner wall of the blind hole internal spline, the quenching lifting device 2 is fixedly arranged on the workbench, a power supply system is arranged in the quenching lifting device 2, the scanning type internal spline induction coil 4 is of a non-closed circular ring structure, the free ends of the cross rods of the two L-shaped conductive pipes 3 are fixed at the upper end of the quenching lifting device 2 and are connected with a power supply system, the free ends of the vertical rods of the two L-shaped conductive pipes 3 are vertically upwards and are connected with the two ends of the scanning type internal spline induction coil 4, the two L-shaped conductive pipes 3 and the scanning type internal spline induction coil 4 form an energizing circuit of the power supply system, the power supply system supplies alternating current to the energizing circuit, the scanning type internal spline induction coil 4 is energized to achieve a heating function, the quenching lifting device 2 can drive the scanning type internal spline induction coil 4 to vertically operate in blind holes to achieve overall heating of the internal spline, and the scanning type internal spline induction coil 4 is correspondingly located under the three-jaw chuck clamping device 1.
As shown in fig. 3, the scanning internal spline induction coil 4 has a structure that a plurality of magnetic conductive blocks 8 are sleeved on a non-closed annular tube body 5. The application of the magnetizer in induction hardening is very wide. The heating magnetic conduction on the quenching induction coil utilizes the notch effect, and the flowing part of current on the induction coil can be adjusted, so that more power is applied to the part to be heated, the distortion and oxidation of a workpiece are reduced, the productivity is improved, the effects of energy accumulation, electricity saving and synergy are achieved, and particularly, the effect is quite remarkable when the quenching induction coil is used on the induction coil with internal holes and plane heating.
The vertical rods of the two L-shaped conductive pipes 3 are arranged in parallel on the central line of the scanning type internal spline induction coil 4, so that the vertical rods are positioned at the central position of the blind hole internal spline as much as possible in high-frequency quenching operation.
The L-shaped conductive pipe 3 and the non-closed annular pipe body 5 are hollow conductive pipe bodies, the inner cavity of the L-shaped conductive pipe 3 is communicated with the inner cavity of the non-closed annular pipe body 5, a plurality of liquid spraying holes 6 which are arranged in a crossed arrangement are formed in the lower portion of the outer side of the non-closed annular pipe body 5, and the inner cavity of the cross rod of the L-shaped conductive pipe 3 is communicated with a water supply device. The water supply device is used for introducing cooling liquid into the L-shaped conductive pipe 3, the L-shaped conductive pipe 3 is used for conveying the cooling liquid to the non-closed annular pipe body 5 communicated with the inner cavity of the L-shaped conductive pipe, and then the cooling liquid is sprayed onto the inner wall of the blind hole inner spline through the liquid spraying hole 6 to cool the blind hole inner spline.
The bottom of the quenching lifting device 2 is arranged on a workbench through a rotating device, and the rotating device can control the L-shaped conductive pipe 3 and the scanning type internal spline induction coil 4 to rotate to other positions when a workpiece is assembled and disassembled so as to avoid influencing assembling and disassembling operations.
A center frame 7 for preventing the workpiece from falling is arranged right below the three-jaw chuck clamping device 1. The center frame 7 is a conventional device mechanism for preventing a workpiece from falling, and is applicable to a conventional device shown in fig. 5, for example, and its specific structure and function are conventional and will not be described in detail herein.
The using method comprises the following steps: the workpiece is clamped downwards in the three-jaw chuck clamping device 1 through a blind hole, the middle part of the workpiece is positioned in the center frame 7, the workpiece is prevented from falling in the rotating process, then the rotating device at the bottom of the quenching lifting device 2 is controlled to rotate, the scanning type internal spline induction coil 4 is arranged under the blind hole of the workpiece, the quenching lifting device 2 is controlled to drive the scanning type internal spline induction coil 4 to extend upwards into the internal spline of the blind hole to heat the upper part and spray cooling medium at the lower part immediately, the workpiece is slowly rotated at a uniform speed, the scanning type internal spline induction coil 4 is driven to move at a uniform speed from bottom to top, the internal spline teeth are uniformly heated, surface cracks caused by overlarge cooling shrinkage are prevented, the cooling medium is sprayed by the water supply device to the inner cavity of the non-closed annular tube body 5 through the L-shaped conductive tube 3, the non-closed annular tube body 5 sprays the cooling liquid on the hole wall through the liquid spraying hole 6, the whole structure is simple, the transformation cost is low, the use is convenient, the processing is fast and high efficiency is ensured, the processing quality is good, and the processing qualification rate of the workpiece is ensured, and the economic benefit of enterprises is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (5)
1. The blind hole internal spline high-frequency quenching device is characterized in that: the three-jaw chuck clamping device comprises a three-jaw chuck clamping device (1), a quenching lifting device (2), L conductive pipes (3) and a scanning type internal spline induction coil (4), wherein the three-jaw chuck clamping device (1) used for clamping the upper end of a workpiece is fixedly arranged above a workbench, a rotating mechanism used for driving the workpiece to rotate is arranged on the three-jaw chuck clamping device (1), the quenching lifting device (2) is fixedly arranged on the workbench, a power supply system is arranged in the quenching lifting device (2), the scanning type internal spline induction coil (4) is of a non-closed circular ring structure, the free ends of transverse rods of the two L conductive pipes (3) are fixed at the upper end of the quenching lifting device (2) and are connected with the power supply system, the free ends of vertical rods of the two L conductive pipes (3) are vertically upwards and are connected with the two ends of the scanning type internal spline induction coil (4), the two L conductive pipes (3) and the scanning type internal spline induction coil (4) form an electrifying loop of the power supply system, and the scanning type internal spline induction coil (4) is correspondingly arranged under the three-jaw chuck clamping device (1).
2. The blind hole internal spline high-frequency quenching apparatus according to claim 1, wherein: the scanning type internal spline induction coil (4) is characterized in that a plurality of magnetic conduction blocks (8) are sleeved on the non-closed annular tube body (5).
3. The blind hole internal spline high-frequency quenching apparatus according to claim 2, wherein: the L-shaped conductive pipe (3) and the non-closed annular pipe body (5) are hollow conductive pipe bodies, the inner cavity of the L-shaped conductive pipe (3) is communicated with the inner cavity of the non-closed annular pipe body (5), a plurality of liquid spraying holes (6) which are arranged in a crossed manner are formed in the lower portion of the outer side of the non-closed annular pipe body (5), and a water supply device is communicated with the inner cavity of a cross rod of the L-shaped conductive pipe (3).
4. A blind hole internal spline induction hardening apparatus according to any one of claims 1 to 3, characterized in that: the bottom of the quenching lifting device (2) is arranged on the workbench through a rotating device.
5. A blind hole internal spline induction hardening apparatus according to any one of claims 1 to 3, characterized in that: a center frame (7) for preventing the workpiece from falling is arranged right below the three-jaw chuck clamping device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321682743.2U CN220183336U (en) | 2023-06-29 | 2023-06-29 | High-frequency quenching device for blind hole internal spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321682743.2U CN220183336U (en) | 2023-06-29 | 2023-06-29 | High-frequency quenching device for blind hole internal spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220183336U true CN220183336U (en) | 2023-12-15 |
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ID=89112783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321682743.2U Active CN220183336U (en) | 2023-06-29 | 2023-06-29 | High-frequency quenching device for blind hole internal spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220183336U (en) |
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2023
- 2023-06-29 CN CN202321682743.2U patent/CN220183336U/en active Active
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