Heat treatment device for precision gear machining

Abstract

The utility model discloses a heat treatment device for precision gear machining, which relates to the technical field of gear machining and comprises a machining box, a heat preservation component is arranged on the outer wall of the machining box, and a rotary clamping component is arranged on the inner wall of the machining box. The rotating clamping assembly comprises a rotating cylinder, a rotating cylinder and a placement circular truncated cone, four sliding grooves are formed in the top end of the placement circular truncated cone, sliding blocks are arranged on the inner walls of the four sliding grooves, inner supporting plates are fixedly installed at the top ends of the four sliding blocks, supporting rods are rotatably installed at one ends of the outer walls of the four sliding blocks, and rotating blocks are rotatably installed at one ends of the outer walls of the four supporting rods; a rotating block drives a sliding block and an inner supporting plate to move outwards through a supporting rod till the inner supporting plate makes contact with the inner wall of the hole diameter of the gear, gears with different hole diameters are fixed, a rotating cylinder can drive a containing circular truncated cone and the gear needing to be heated to rotate, and the gear continuously rotates in the heating process; and the heat can be more uniformly distributed on the whole surface of the gear.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, in particular to a heat treatment device for precision gear processing. Background Art

[0002] Gears are parts that perform mechanical transmission through meshing connections. During the gear processing and production process, in order to increase the service life of the gears, they need to be heat treated by a heat treatment device first. During the gear processing and heat treatment process, it is often necessary to position gears with different apertures.

[0003] In the prior art, for example, a heat treatment device for precision gear processing disclosed in Patent No. CN216337811U comprises a base, wherein a heat treatment frame is installed on the upper end surface of the base, an exhaust gas treatment cylinder is installed on the upper end surface of the heat treatment frame, a sealed cover is provided on the top of the exhaust gas treatment cylinder, the heat treatment frame is a gantry structure and a heating groove is opened on its inner bottom end surface, a heating ring is horizontally provided in the heating groove, a lifting plate connected to the groove is provided below the heating ring, a clamping seat is provided on the upper surface of the lifting plate, an electric screw is provided inside the clamping seat, and two groups of Y-shaped limit frames are symmetrically connected to the electric screw, a gas collecting cylinder is provided inside the exhaust gas treatment cylinder, and an exhaust pump connected to the heating groove inside the heat treatment frame is provided at the bottom end of the gas collecting cylinder, the gear workpiece is clamped by the limit frame, the gear is sent into the heating groove by an electric hydraulic rod, and the lifting plate is pressed against the groove to prevent exhaust gas from escaping, and the gear can be heat treated through the heating ring.

[0004] Although the above patent can perform heat treatment on gears and treat exhaust gas, there are still some problems. The heating position of the gear and the heating ring is fixed, which may reduce the uniformity of heating on the gear surface, thereby affecting the effect of gear heat treatment. At the same time, the temperature of the exhaust gas generated is relatively high. If the exhaust gas is directly treated, the heat energy in the exhaust gas cannot be utilized. For this reason, the utility model provides a heat treatment device for precision gear processing. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a heat treatment device for precision gear processing, which solves the problem that the heating position of the gear and the heating ring is fixed, which may reduce the heating uniformity of the gear surface, thereby affecting the effect of gear heat treatment. At the same time, the exhaust gas temperature generated is high, and directly treating the exhaust gas cannot utilize the heat energy in the exhaust gas.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A heat treatment device for precision gear processing, comprising a processing box, an outer wall of the processing box is provided with a heat insulation component, and an inner wall of the processing box is provided with a rotating clamping component;

[0007] The rotating clamping assembly includes a rotating cylinder, the outer wall of the rotating cylinder is fixedly sleeved with an outer gear ring, the top of the rotating cylinder is fixedly installed with a placing round table, the top of the placing round table is provided with four slide grooves, the inner walls of the four slide grooves are fixedly installed with sliding rods, the outer walls of the four sliding rods are slidably connected to sliders, the tops of the four sliders are fixedly installed with inner support plates, one end of the outer wall of the four sliders is rotatably installed with a support rod, one end of the outer wall of the four support rods is rotatably installed with a rotating block, and the bottom end of the rotating block is rotatably installed with a connecting rod;

[0008] The heat-insulating component comprises a heat-insulating interlayer and an exhaust fan.

[0009] Preferably, the rotating cylinder is rotatably mounted on the top of the inner wall of the processing box, the four sliding blocks are movably inserted into the inner walls of the four slide grooves respectively, a circular groove is penetrated through the top of the placing table, and the connecting rod passes through the circular groove.

[0010] Preferably, a motor is fixedly mounted on the bottom end of the processing box, an output end of the motor passes through the inner wall of the processing box, and a first gear is fixedly mounted thereon, and the first gear is meshed with the outer gear ring.

[0011] Preferably, the thermal insulation interlayer is fixedly connected to the outer wall of the processing box, the exhaust fan is fixedly connected to the top of the processing box, the exhaust fan is fixedly connected to the thermal insulation interlayer, the output end of the exhaust fan is fixedly connected to a connecting pipe, and the output end of the connecting pipe is fixedly connected to the processing box.

[0012] Preferably, a mounting plate is fixedly installed on one end of the outer wall of the processing box, an exhaust gas treatment box is fixedly installed on the top of the mounting plate, the exhaust gas treatment box is fixedly connected to the thermal insulation interlayer, a support frame is fixedly installed on the bottom end of the processing box, an electric push rod is fixedly installed on the top of the inner wall of the support frame, and the output end of the electric push rod slides through the bottom end of the processing box and is fixedly connected to the connecting rod.

[0013] Preferably, a heating plate is fixedly mounted on the inner wall of the processing box, and a sealed insulating door is hingedly connected to one end of the outer wall of the processing box.

[0014] Beneficial effects

[0015] The utility model provides a heat treatment device for precision gear processing. Compared with the prior art, it has the following advantages:

[0016] (1) When the gear needs to be heat treated, the aperture on the gear is first inserted into the outer wall of the four inner support plates, and then the electric push rod is turned on. The electric push rod drives the connecting rod and the rotating block to move downward, and the rotating block drives the slider and the inner support plate to move outward through the support rod until the inner support plate contacts the inner wall of the gear aperture, so that gears with different aperture sizes can be fixed. At this time, the sealed insulation door can be closed and the heating plate can be turned on to heat the gear. In order to make the gear surface more evenly heated, the motor can be turned on to drive the first gear to rotate, and the first gear drives the outer gear ring and the rotating cylinder to rotate. The rotating cylinder can drive the placement table and the gear to be heated to rotate. The gear rotates continuously during the heating process, so that each part of the gear can contact the heating source in turn, so that the heat can be more evenly distributed on the entire surface of the gear, thereby improving the effect of gear heat treatment.

[0017] (2) The heat treatment device for precision gear processing may generate some waste gas during the heating process of the gear. By closing the sealed insulation door, the waste gas can be prevented from being discharged directly from the processing box. Then, the exhaust fan is turned on. The exhaust fan extracts the high-temperature waste gas in the processing box into the thermal insulation interlayer through the connecting pipe. The high-temperature waste gas flows in the thermal insulation interlayer and can transfer the heat to the processing box again, making it more difficult for the heat inside the processing box to dissipate, thereby reducing the heat loss inside the processing box. Then, the high-temperature waste gas will enter the waste gas treatment box, and the waste gas will be discharged into the air after being treated, thereby reducing the impact of the waste gas on the air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the processing box of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the rotating clamping assembly of the present utility model;

[0022] Figure 5 It is a partial structural diagram of the rotating clamping assembly of the present utility model.

[0023] In the figure: 1. Processing box; 2. Sealed insulation door; 3. Insulation component; 31. Insulation interlayer; 32. Exhaust fan; 33. Connecting pipe; 34. Mounting plate; 35. Exhaust gas treatment box; 4. Heating plate; 5. Rotating clamping component; 51. Electric push rod; 52. Rotating cylinder; 53. Outer gear ring; 54. Slide groove; 55. Slide rod; 56. Slider; 57. Inner support plate; 58. Connecting rod; 59. Rotating block; 510. Support rod; 511. Motor; 512. First gear; 513. Circular groove; 514. Placement of round table; 6. Support frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] This utility model provides two technical solutions:

[0026] Figure 1-Figure 5 The first embodiment is shown: a heat treatment device for precision gear processing, comprising a processing box 1, an outer wall of the processing box 1 is provided with a heat preservation component 3, and an inner wall of the processing box 1 is provided with a rotating clamping component 5;

[0027] The rotatable clamping assembly 5 comprises a rotating cylinder 52, the outer wall of which is fixedly sleeved with an outer gear ring 53, and a placing round table 514 is fixedly installed on the top of the rotating cylinder 52. Four sliding grooves 54 are provided on the top of the placing round table 514, and sliding rods 55 are fixedly installed on the inner walls of the four sliding grooves 54. The outer walls of the four sliding rods 55 are slidably connected with sliders 56, and the sliding rods 55 can play a limiting and guiding role for the sliders 56. The tops of the four sliders 56 are fixedly installed with inner support plates 57, and one end of the outer wall of the four sliders 56 is rotatably installed with support rods 510. When the rotating block 59 is lifted or lowered, the sliders 56 and the inner support plates 57 are driven by the support rods 510 to move in the sliding grooves 54, driving the outer wall ends of the four support rods 510 to be rotatably installed with rotating blocks 59. When the placing round table 514 rotates, it drives the rotating block 59 to rotate together without interfering with the rotation of the placing round table 514. The bottom end of the rotating block 59 is rotatably installed with a connecting rod 58;

[0028] The heat-insulating assembly 3 includes a heat-insulating interlayer 31 and an exhaust fan 32 . The exhaust fan 32 is a conventional technology and can generate negative pressure to extract the exhaust gas in the processing box 1 .

[0029] The rotating cylinder 52 is rotatably installed on the top of the inner wall of the processing box 1, and the four sliders 56 are movably inserted into the inner walls of the four slide grooves 54. A circular groove 513 is opened through the top of the placing table 514, and the connecting rod 58 passes through the circular groove 513, so that the connecting rod 58 can be raised and lowered without hindrance.

[0030] A motor 511 is fixedly installed at the bottom end of the processing box 1. The output end of the motor 511 passes through the inner wall of the processing box 1 and is fixedly installed with a first gear 512. The first gear 512 is meshed with the outer ring gear 53. The motor 511 can drive the first gear 512 to rotate, and the first gear 512 in turn drives the outer ring gear 53 to rotate.

[0031] Figure 1-Figure 5 A second embodiment is shown, the main difference from the first embodiment is that: the thermal insulation interlayer 31 is fixedly connected to the outer wall of the processing box 1, a cavity is provided in the thermal insulation interlayer 31, which can allow high-temperature exhaust gas to flow inside it, the exhaust fan 32 is fixedly connected to the top of the processing box 1, the exhaust fan 32 is fixedly connected to the thermal insulation interlayer 31, the output end of the exhaust fan 32 is fixedly connected to the connecting pipe 33, and the output end of the connecting pipe 33 is fixedly connected to the processing box 1.

[0032] A mounting plate 34 is fixedly installed at one end of the outer wall of the processing box 1, and a waste gas treatment box 35 is fixedly installed on the top of the mounting plate 34. A solution that can absorb waste gas can be placed in the waste gas treatment box 35. When the waste gas passes through the solution, the waste gas can be absorbed and treated, and then discharged into the outside air. The waste gas treatment box 35 is fixedly connected to the thermal insulation interlayer 31. A support frame 6 is fixedly installed at the bottom end of the processing box 1, and an electric push rod 51 is fixedly installed at the top of the inner wall of the support frame 6. The output end of the electric push rod 51 slides through the bottom end of the processing box 1 and is fixedly connected to the connecting rod 58. The electric push rod 51 is a prior art and can drive the connecting rod 58 to rise and fall, thereby driving the rotating block 59 to rise and fall.

[0033] A heating plate 4 is fixedly installed on the inner wall of the processing box 1, and a sealed insulating door 2 is hingedly connected to one end of the outer wall of the processing box 1. An electric heating wire can be arranged inside the heating plate 4. The electric heating wire generates heat to heat-treat the gears. The sealed insulating door 2 can reduce the rate of heat loss from the processing box 1 and prevent the exhaust gas generated by heating from being directly discharged into the air.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] During operation, when the gear needs to be heat treated, the aperture on the gear is first inserted into the outer wall of the four inner support plates 57, and then the electric push rod 51 is turned on. The electric push rod 51 drives the connecting rod 58 and the rotating block 59 to move downward, and the rotating block 59 drives the slider 56 and the inner support plate 57 to move outward through the support rod 510 until the inner support plate 57 contacts the inner wall of the gear aperture, so that gears of different aperture sizes can be fixed. At this time, the sealed insulation door 2 can be closed, and the heating plate 4 can be turned on to heat the gear. In order to make the gear surface more evenly heated, the motor 511 can be turned on, and the motor 511 drives the first gear 512 to rotate. The first gear 512 drives the outer gear ring 53 and the rotating cylinder 52 to rotate. The rotating cylinder 52 can drive the placement table 514 and the gear to be heated to rotate. The gear rotates continuously during the heating process, so that various parts of the gear can contact the heating source in turn, so that the heat can be more evenly distributed on the entire surface of the gear, thereby improving the effect of the heat treatment of the gear. During the heating process, the gear may generate some exhaust gas. By closing the sealed insulation door 2, the exhaust gas can be prevented from being directly discharged from the processing box 1, and then the exhaust fan 32 is turned on. The exhaust fan 32 extracts the high-temperature exhaust gas in the processing box 1 into the thermal insulation interlayer 31 through the connecting pipe 33. The high-temperature exhaust gas flows in the thermal insulation interlayer 31 and can transfer the heat to the processing box 1 again, making it more difficult for the heat inside the processing box 1 to dissipate, thereby reducing the heat loss inside the processing box 1. Then the high-temperature exhaust gas will enter the exhaust gas treatment box 35, and the exhaust gas will be discharged into the air after treatment, thereby reducing the impact of the exhaust gas on the air environment.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for precision gear processing, comprising a processing box (1), characterized in that: The outer wall of the processing box (1) is provided with a heat preservation component (3), and the inner wall of the processing box (1) is provided with a rotating clamping component (5); The rotating clamping assembly (5) comprises a rotating cylinder (52), the outer wall of the rotating cylinder (52) is fixedly sleeved with an outer gear ring (53), the top of the rotating cylinder (52) is fixedly installed with a placing table (514), the top of the placing table (514) is provided with four sliding grooves (54), the inner walls of the four sliding grooves (54) are fixedly installed with sliding rods (55), the outer walls of the four sliding rods (55) are slidably connected with sliders (56), the tops of the four sliders (56) are fixedly installed with inner support plates (57), one end of the outer wall of the four sliders (56) is rotatably installed with a support rod (510), one end of the outer wall of the four support rods (510) is rotatably installed with a rotating block (59), and the bottom end of the rotating block (59) is rotatably installed with a connecting rod (58); The heat-insulating assembly (3) comprises a heat-insulating interlayer (31) and an exhaust fan (32).

2. A heat treatment device for precision gear processing according to claim 1, characterized in that: The rotating cylinder (52) is rotatably mounted on the top of the inner wall of the processing box (1); the four sliders (56) are movably inserted into the inner walls of the four slide grooves (54); a circular groove (513) is formed through the top of the placing truncated table (514); and the connecting rod (58) passes through the circular groove (513).

3. The heat treatment device for precision gear processing according to claim 1, characterized in that: A motor (511) is fixedly mounted on the bottom end of the processing box (1); an output end of the motor (511) passes through the inner wall of the processing box (1) and is fixedly mounted with a first gear (512); the first gear (512) is meshed with an outer gear ring (53).

4. The heat treatment device for precision gear processing according to claim 1, characterized in that: The heat-insulating interlayer (31) is fixedly connected to the outer wall of the processing box (1), the exhaust fan (32) is fixedly connected to the top of the processing box (1), the exhaust fan (32) is fixedly connected to the heat-insulating interlayer (31), the output end of the exhaust fan (32) is fixedly connected to a connecting pipe (33), and the output end of the connecting pipe (33) is fixedly connected to the processing box (1).

5. The heat treatment device for precision gear processing according to claim 1, characterized in that: A mounting plate (34) is fixedly mounted on one end of the outer wall of the processing box (1), an exhaust gas treatment box (35) is fixedly mounted on the top end of the mounting plate (34), and the exhaust gas treatment box (35) is fixedly connected to the thermal insulation interlayer (31). A support frame (6) is fixedly mounted on the bottom end of the processing box (1), and an electric push rod (51) is fixedly mounted on the top end of the inner wall of the support frame (6). The output end of the electric push rod (51) slides through the bottom end of the processing box (1) and is fixedly connected to the connecting rod (58).

6. The heat treatment device for precision gear processing according to claim 1, characterized in that: A heating plate (4) is fixedly mounted on the inner wall of the processing box (1), and a sealed insulating door (2) is hingedly connected to one end of the outer wall of the processing box (1).

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