Gear quenching and shaping integrated device

Abstract

The utility model relates to the technical field of gear processing, and discloses a gear quenching and shaping integrated device which comprises a quenching box body, a lower die table is formed in the quenching box body, a liftable lower shaping die is sleeved in the lower die table, an upper shaping die is arranged right above the lower shaping die, and the upper shaping die is connected with a hydraulic machine for driving the upper shaping die to lift; quenching oil is arranged in the quenching box body, and the lower sizing die can move downwards to be immersed in the quenching oil. The gear is subjected to single quenching and shaping treatment in the quenching process, so that the deformation of the gear in the heat treatment process and the deformation caused by mutual collision between the gears can be effectively reduced, and the quality of the gear can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a gear quenching and shaping integrated device. Background Art

[0002] Gears require quenching during production. Existing gear quenching methods typically heat multiple gears together in a furnace, then place them in a quenching tank for oil immersion. However, during the heating and cooling process, gears can easily deform or collide with each other, which can affect gear quality. Utility Model Content

[0003] The purpose of the utility model is to provide a gear quenching and shaping integrated device, which can effectively reduce the deformation of the gear caused by the heat treatment process and the deformation caused by the collision between gears by quenching the gears individually and shaping them during the quenching process, and effectively improve the quality of the gears.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A gear quenching and shaping device includes a quenching box, a lower die table formed in the quenching box, a lower shaping die that can be raised and lowered is sleeved in the lower die table, an upper shaping die is arranged directly above the lower shaping die, and the upper shaping die is connected to a hydraulic press that drives it to rise and fall;

[0006] The quenching box is provided with quenching oil, and the lower shaping die moves downward and can be immersed in the quenching oil.

[0007] The heated gear workpiece is placed in the lower shaping die, and then the hydraulic press drives the upper shaping die to move downward. The upper shaping die is inserted into the lower shaping die and the gear workpiece to shape the gear. At the same time, the upper shaping die drives the lower shaping die and the gear workpiece to move downward and immerse them in quenching oil, thereby quenching the gear workpiece. By shaping the gear during the quenching process, the tolerance of the gear workpiece due to heat treatment can be reduced and the product quality can be improved.

[0008] The utility model is further configured as follows: a stepped hole is formed in the lower die table;

[0009] The lower shaping die is in the shape of a stepped column and is inserted into the stepped hole; a compression spring is provided between the lower shaping die and the stepped hole;

[0010] The lower shaping die is provided with a limiting guide mechanism.

[0011] When the upper shaping die applies pressure to the lower shaping die, the compression spring is compressed and the lower shaping die moves downward. When the upper shaping die is separated from the lower shaping die, the lower shaping die automatically moves upward and resets under the action of the compression spring.

[0012] The utility model is further configured as follows: the limiting guide mechanism includes a limiting pull rod fixedly connected to the lower shaping mold and a guide sleeve fixedly connected to the step hole; a vertical groove is formed in the guide sleeve, a guide pin is sleeved in the vertical groove, and the guide pin is inserted into and fixed on the limiting pull rod.

[0013] Through the above technical solution, the guide pins can ensure that the lower shaping mold will not rotate during the lifting process and can also ensure the maximum upward movement of the lower shaping mold.

[0014] The utility model is further configured as follows: the upper end of the lower shaping die is formed with a center positioning boss, a shaping gear table and an upper die clearance groove;

[0015] The teeth of the upper shaping die can be inserted into the grooves of adjacent teeth of the shaping gear platform, and the tooth groove profile of the upper shaping die is matched with the outer shape of the teeth of the shaping tire.

[0016] The utility model is further configured as follows: a radial oil hole is formed on the lower shaping die;

[0017] The central positioning boss is formed with a plurality of axial oil holes communicating with the radial oil holes.

[0018] When the lower shaping die moves downward, the quenching oil can enter between the two shaping dies through the radial oil hole and the axial oil hole in sequence, which can provide better quenching performance for the gear workpiece.

[0019] The utility model is further configured as follows: an oil drain hole communicating with the radial oil through hole is formed at the bottom of the upper die recess.

[0020] Through the above technical solution, the quenching oil in the upper die groove can be easily discharged back into the quenching box through the oil drain hole, ensuring the smooth descending of the upper shaping die.

[0021] The outstanding effects of the utility model are:

[0022] Compared with the existing technology, by quenching the gears individually and performing shaping during the quenching process, the deformation of the gears caused by heat treatment and the deformation caused by collision between gears can be effectively reduced, which can effectively improve the quality of the gears.

[0023] The limit guide mechanism can limit the movement direction and upward reset of the lower shaping die, which can prevent the lower shaping die from rotating freely and leaving the die table;

[0024] By arranging radial and axial oil holes, quenching oil can be easily passed between the upper shaping die and the lower shaping die, thereby improving the heat treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic structural diagram of an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 About the cross-sectional view of AA;

[0027] Figure 3 for Figure 1 A partial enlarged view of B;

[0028] Figure 4 for Figure 3 Cross-sectional view of CC.

[0029] Reference numerals: 10, quenching box; 101, lower die table; 102, stepped hole;

[0030] 20. Lower shaping die; 21. Compression spring; 22. Limiting guide mechanism;

[0031] 201, center positioning boss; 202, shaping gear stage; 203, upper die clearance groove; 204, radial oil hole; 205, axial oil hole; 206, oil drain hole;

[0032] 221, limit rod; 222, guide sleeve; 223, vertical slot; 224, guide pin;

[0033] 30. Upper plastic mold;

[0034] 40. Quenching oil;

[0035] 90. Gear workpiece. DETAILED DESCRIPTION

[0036] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] The following references Figures 1 to 4 The following describes the embodiments of the present invention:

[0038] A gear quenching and shaping integrated device, such as Figure 1 、 Figure 2 As shown, it includes a quenching box 10, in which a lower die table 101 is formed. A lower shaping die 20 that can be raised and lowered is sleeved in the lower die table 101. An upper shaping die 30 is provided just above the lower shaping die 20. The upper shaping die 30 is connected to a hydraulic press that drives it to rise and fall.

[0039] The quenching box 10 is provided with quenching oil 40 , and the lower shaping die 20 can be immersed in the quenching oil 40 when it moves downward.

[0040] The heated gear workpiece 90 is placed in the lower shaping die, and then the hydraulic press drives the upper shaping die to move downward. The upper shaping die is inserted into the lower shaping die and the gear workpiece 90 to shape the gear. At the same time, the upper shaping die drives the lower shaping die and the gear workpiece to move downward and immerse them in quenching oil, thereby quenching the gear workpiece. By shaping the gear during the quenching process, the tolerance of the gear workpiece caused by heat treatment can be reduced, and the product quality can be improved.

[0041] like Figure 3 As shown, a stepped hole 102 is formed in the mold platform 101 of this embodiment;

[0042] The lower shaping die 20 is in the shape of a stepped column and is inserted into the stepped hole 102. A compression spring 21 is provided between the lower shaping die 20 and the stepped hole 102.

[0043] The lower shaping die 20 is provided with a limiting guide mechanism 22 .

[0044] When the upper shaping die applies pressure to the lower shaping die, the compression spring is compressed and the lower shaping die moves downward. When the upper shaping die is separated from the lower shaping die, the lower shaping die automatically moves upward and resets under the action of the compression spring.

[0045] The limiting guide mechanism 22 includes a limiting pull rod 221 fixedly connected to the lower shaping mold 20 and a guide sleeve 222 fixedly connected to the step hole 102; a vertical groove 223 is formed in the guide sleeve 222, and a guide pin 224 is sleeved in the vertical groove 223, and the guide pin 224 is inserted into and fixed on the limiting pull rod 221.

[0046] Through the above technical solution, the guide pins can ensure that the lower shaping mold will not rotate during the lifting process and can also ensure the maximum upward movement of the lower shaping mold.

[0047] like Figure 3 、 Figure 4 As shown, the upper end of the lower shaping die 20 of this embodiment is formed with a center positioning boss 201, a shaping gear stage 202 and an upper die clearance groove 203;

[0048] The teeth of the upper shaping die 30 can be inserted into the grooves of adjacent teeth of the shaping gear stage 202, and the tooth groove profile of the upper shaping die is matched with the outer shape of the teeth of the shaping tire.

[0049] The utility model is further configured as follows: a radial oil hole 204 is formed on the lower shaping die 20;

[0050] The center positioning boss 201 is formed with a plurality of axial oil holes 205 that communicate with the radial oil holes 204 .

[0051] When the lower shaping die moves downward, the quenching oil can enter between the two shaping dies through the radial oil hole and the axial oil hole in sequence, which can provide better quenching performance for the gear workpiece.

[0052] The present invention is further configured as follows: an oil drain hole 206 communicating with the radial oil hole 204 is formed at the bottom of the upper die recess 203 .

[0053] The quenching oil in the upper die groove can be easily discharged back into the quenching box through the oil drain hole to ensure the smooth descending of the upper shaping die.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. A gear quenching and shaping integrated device, comprising a quenching box (10), characterized in that: A lower die table (101) is formed in the quenching box (10), a lower shaping die (20) that can be lifted and lowered is sleeved in the lower die table (101), and an upper shaping die (30) is provided directly above the lower shaping die (20); The quenching box (10) is provided with quenching oil (40), and the lower shaping die (20) can be immersed in the quenching oil (40) when it moves downward.

2. The gear quenching and shaping integrated device according to claim 1, characterized in that: A stepped hole (102) is formed in the lower die table (101); The lower shaping die (20) is in the shape of a stepped column, and the lower shaping die (20) is inserted into the stepped hole (102); a compression spring (21) is provided between the lower shaping die (20) and the stepped hole (102); The lower shaping die (20) is provided with a limiting guide mechanism (22).

3. The gear quenching and shaping integrated device according to claim 2, characterized in that: The limiting guide mechanism (22) comprises a limiting pull rod (221) fixedly connected to the lower shaping die (20) and a guide sleeve (222) fixedly connected to the step hole (102); a vertical groove (223) is formed in the guide sleeve (222), a guide pin (224) is sleeved in the vertical groove (223), and the guide pin (224) is inserted into and fixed on the limiting pull rod (221).

4. The gear quenching and shaping integrated device according to claim 1, characterized in that: The upper end of the lower shaping die (20) is formed with a center positioning boss (201), a shaping gear table (202) and an upper die clearance groove (203); The teeth of the upper shaping die (30) can be inserted into the grooves of adjacent teeth of the shaping tooth platform (202).

5. The gear quenching and shaping integrated device according to claim 4, characterized in that: A radial oil hole (204) is formed on the lower shaping die (20); A plurality of axial oil holes (205) communicating with the radial oil holes (204) are formed on the central positioning boss (201).

6. The gear quenching and shaping integrated device according to claim 5, characterized in that: An oil drain hole (206) communicating with the radial oil hole (204) is formed at the bottom of the upper die recess (203).

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