Surface quenching equipment for high-speed steel cutter production

Abstract

The application relates to the field of surface quenching technology, in particular to surface quenching equipment for high-speed steel cutter production, which comprises a base, a control console, a heating furnace, a quenching pool, a rotating column, a rotating frame, a lifting plate, a transmission box, a linkage box, a rotating cylinder, a clamping box, a lifting mechanism, a rotating mechanism and a clamping mechanism. The lifting mechanism is used for lifting the cutter, so that part of the device can drive the cutter to be inserted in the interior of the heater, heating operation of part of the cutter is facilitated, the rotating mechanism is used for rotating the cutter, so that part of the heater can uniformly heat the surface of the cutter, the hardness of part of the cutter surface is relatively uniform, the clamping mechanism is used for clamping the cutter, so that part of the device can stably clamp cutters of different specifications according to requirements, continuous quenching processing of part of the device on the cutter is facilitated, and the adjustability, convenience and uniformity of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of surface hardening technology, specifically to a surface hardening equipment for the production of high-speed steel cutting tools. Background Technology

[0002] Cutting tools are tools used for cutting processes in mechanical manufacturing. They can be classified into five categories based on the form of the workpiece surface being machined: tools for machining various external surfaces include turning tools, planing tools, milling cutters, broaches, and files, etc. Cutting tools are widely used in high-speed milling processes in the automotive, aircraft, and mold manufacturing industries. High-speed steel is a tool steel with high hardness, high wear resistance, and high heat resistance. High-speed steel has good processing properties and a good balance of strength and toughness, therefore it is mainly used to manufacture complex thin-edged and impact-resistant metal cutting tools. High-speed steel tools are tougher and easier to cut than ordinary tools. Since the tools used in mechanical manufacturing are primarily for cutting metal materials, the tougher the tool, the more widely it can be used, and high-speed steel tools perfectly meet this characteristic.

[0003] Surface hardening is a surface heat treatment process that hardens only the surface of a steel workpiece. Its purpose is to improve the surface hardness, wear resistance, and fatigue strength, while the core retains high toughness. It is commonly used for shafts, gears, and other parts. During the process, rapid heating is used to austenitize the surface layer of the workpiece, followed immediately by quenching to transform the surface microstructure into martensite, while the core microstructure remains largely unchanged. Surface hardening is generally followed by low-temperature tempering. Depending on the heating method, it can be classified as induction hardening, flame hardening, electrical contact hardening, and electrolyte hardening, with the first two being the most widely used.

[0004] Existing devices primarily use a combination of heating and cooling components to quench steel workpieces. Many existing technologies resemble surface quenching devices for parts. A structure with patent number CN108118120A includes an inner turntable, a base, a base plate, a slide rail, a lifting rod, and an electromagnetic induction heater. The inner turntable is rotatably mounted on top of the base and is used to clamp the part to be quenched. The base is fixed to the base plate. One end of the lifting rod is slidably disposed within the slide rail, and the sliding direction of the lifting rod extends radially along the inner turntable. The induction device is installed at the other end of the lifting rod, with the induction head facing the inner turntable. A spray pipe is provided on the outer surface of the induction head, and multiple spray holes are formed on the spray pipe, with the included angle between two adjacent spray holes being 35° to 50°. This surface quenching device can accommodate parts of various sizes, thus improving its adaptability. However, there are still areas for optimization.

[0005] Existing equipment mainly uses a rotating machine tool to drive the workpiece surface for spray quenching. This makes it difficult for some equipment to stably clamp different specifications of cutting tools according to requirements, thus hindering continuous quenching of the tools. Secondly, some equipment mainly uses electromagnetic induction heaters to heat the workpiece surface, making it difficult to insert the cutting tool into the heater, resulting in some tools being difficult to heat. Finally, there are temperature differences in different areas inside some flame heaters, making it difficult for some heaters to heat the tool surface evenly, resulting in uneven surface hardness of some tools, reducing the working efficiency and practicality of the equipment. Therefore, in order to solve the above problems, a surface quenching equipment for high-speed steel tool production is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a surface hardening equipment for the production of high-speed steel cutting tools, in order to solve the problems mentioned in the background art. Existing devices mainly rely on rotating machine tools to drive the workpiece surface for spray hardening, making it difficult for some devices to stably clamp cutting tools of different specifications according to requirements. This results in some devices being unable to perform continuous hardening of the cutting tools. Secondly, some devices mainly use electromagnetic induction heaters to heat the workpiece surface, making it difficult for some devices to insert the cutting tool into the heater, thus hindering the heating of some cutting tools. Finally, the temperature difference between different areas inside some flame heaters makes it difficult for some heaters to uniformly heat the cutting tool surface, resulting in inconsistent surface hardness of some cutting tools.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a surface quenching device for producing high-speed steel cutting tools, comprising a base, a control console fixedly connected to the left side of the outer ring of the top of the base, a heating furnace fixedly connected to the front side of the outer ring of the top of the base, a quenching pool fixedly connected to the right side of the outer ring of the top of the base, a rotating column movably connected to the top center of the base, a rotating frame fixedly connected to the upper part of the outer wall of the rotating column, a lifting plate provided inside the rotating frame, a transmission box fixedly connected to the lower left side of the lifting plate, a linkage box fixedly connected to the top center of the lifting plate, a rotating cylinder inserted inside the right side of the lifting plate, and a clamping box fixedly connected to the bottom of the rotating cylinder;

[0008] The transmission box is equipped with a lifting mechanism, which includes a transmission worm gear. The two ends of the transmission worm gear are movably connected to the right side of the inner wall of the transmission box. The top of the clamping box is equipped with a rotating mechanism, which includes a rotating internal gear. The bottom of the rotating internal gear is fixedly connected to the top outer ring of the clamping box. The clamping box is equipped with a clamping mechanism, which includes a second motor. The top of the second motor is fixedly connected to the top inner ring of the inner wall of the clamping box.

[0009] Preferably, a first motor is fixedly connected to the top left side of the linkage box, and a transmission shaft is fixedly connected to the bottom middle of the first motor. The bottom end of the transmission shaft passes through the linkage box and the lifting plate and is fixedly connected to a first bevel gear.

[0010] Preferably, the bottom of the first bevel gear is meshed with a second bevel gear, the inner wall of the second bevel gear is fixedly connected to the middle of the outer wall of the transmission worm, and transmission worm wheels are connected to both sides of the outer wall of the transmission worm.

[0011] Preferably, a fixing screw is inserted into the inner wall of the transmission worm gear, and the two ends of the fixing screw pass through the transmission box and the lifting plate and are fixedly connected to the inner wall of the rotating frame. The inner wall of the transmission worm gear has a threaded hole corresponding to the fixing screw.

[0012] Preferably, the outer wall of the drive shaft is fixedly connected to a drive wheel inside the linkage box, the outer wall of the drive wheel is engaged with a drive belt, and the right side of the inner wall of the drive belt is engaged with a driven wheel.

[0013] Preferably, a rotating shaft is fixedly connected to the bottom center of the driven wheel, and the bottom end of the rotating shaft passes through the lifting plate and is fixedly connected to a rotating gear. The outer wall of the rotating gear is meshed with the inner wall of the rotating internal gear.

[0014] Preferably, a movable shaft is fixedly connected to the bottom center of the second motor, and a transmission gear is fixedly connected to the bottom end of the movable shaft. An internal transmission gear is meshed with the outer wall of the transmission gear, and the internal transmission gear is limited and sleeved inside the lower part of the clamping box.

[0015] Preferably, a third bevel gear is fixedly connected to the top of the internal transmission gear, and three sets of fourth bevel gears are meshed with the top of the third bevel gear, the fourth bevel gears being evenly distributed on the top outer ring of the third bevel gear.

[0016] Preferably, a movable screw is fixedly connected to the inner wall of the fourth bevel gear, and the outer end of the movable screw is movably connected to the inner outer wall of the clamping box.

[0017] Preferably, the inner end of the movable screw is fitted with a square screw cylinder, the inner end of the square screw cylinder passes through the inner side wall of the clamping box and is fixedly connected to a clamping block, and the inner side wall of the clamping box is provided with a square through hole corresponding to the square screw cylinder.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention utilizes a lifting mechanism comprising a first motor, a transmission shaft, a first bevel gear, a second bevel gear, a transmission worm, a transmission worm wheel, a fixing screw, and threaded holes. The first motor is activated via a control console, driving the transmission shaft to rotate. The transmission shaft then drives the first bevel gear to rotate synchronously. The first bevel gear meshes with and drives the second bevel gear to rotate. The second bevel gear drives the transmission worm to rotate in a limiting position. The transmission worm meshes with and drives the transmission worm wheel to rotate synchronously. The transmission worm wheel, constrained by the threaded hole and the fixing screw, causes the transmission worm wheel to drive the transmission box, lifting plate, rotating cylinder, and clamping box to slide up and down. The clamping box drives the cutting tool to slide synchronously, thus achieving the lifting and lowering of the cutting tool. This allows some parts of the device to be inserted into the heater, facilitating heating of certain cutting tools and improving the convenience and practicality of the device.

[0020] 2. This invention utilizes a rotating mechanism consisting of a drive wheel, transmission belt, driven wheel, rotating shaft, rotating gear, and rotating internal gear. A control console starts a first motor, which drives the transmission shaft to rotate. The transmission shaft then drives the drive wheel to rotate synchronously. The drive wheel meshes with the transmission belt, which in turn meshes with the driven wheel, which in turn meshes with the rotating internal gear, clamping box, and cutting tool, thus achieving cutting tool rotation. This allows some heaters to uniformly heat the cutting tool surface, resulting in more uniform surface hardness and improving the stability and practicality of the device.

[0021] 3. This invention utilizes a clamping mechanism comprising a second motor, a movable shaft, a transmission gear, an internal transmission gear, a third bevel gear, a fourth bevel gear, a movable screw, a square screw barrel, a clamping block, and a square through hole. The control console drives the second motor, which in turn drives the movable shaft to rotate. The movable shaft then drives the transmission gear to rotate synchronously. The transmission gear meshes with the internal transmission gear, which in turn drives the third bevel gear to rotate synchronously. The third bevel gear meshes with the fourth bevel gear, which in turn drives the movable screw to rotate synchronously and at a limit position. The movable screw causes the square screw barrel to slide within the square through hole at a limit position. The square screw barrel then causes the clamping block to slide symmetrically and synchronously along the central axis. This achieves tool clamping, allowing some devices to stably clamp tools of different specifications as needed. It also facilitates continuous quenching of tools in some devices, improving the adjustability and practicality of the device. Attached Figure Description

[0022] Figure 1 This is a front side perspective view of the structure of the present invention;

[0023] Figure 2 This is a front sectional perspective view of the rotating frame and other structures of the present invention;

[0024] Figure 3This is a front sectional perspective view of a partial structure of the lifting plate and lifting mechanism of the present invention;

[0025] Figure 4 This is a partial side sectional perspective view of the linkage box and rotating mechanism of the present invention;

[0026] Figure 5 This is a top sectional perspective view of a partial structure of the clamping box and rotating mechanism of the present invention;

[0027] Figure 6 This is a top sectional perspective view of a partial structure of the clamping box and clamping mechanism of the present invention;

[0028] Figure 7 This is a partial side sectional perspective view of the clamping box and clamping mechanism of the present invention.

[0029] In the diagram: 101, base; 102, control console; 103, heating furnace; 104, quenching tank; 105, rotating column; 106, rotating frame; 107, lifting plate; 108, transmission box; 109, linkage box; 110, rotating cylinder; 111, clamping box; 2, lifting mechanism; 201, first motor; 202, transmission shaft; 203, first bevel gear; 204, second bevel gear; 205, transmission worm gear; 206, transmission worm wheel; 207, fixing screw; 2 08. Threaded hole; 3. Rotating mechanism; 301. Driving wheel; 302. Transmission belt; 303. Driven wheel; 304. Rotating shaft; 305. Rotating gear; 306. Rotating internal gear; 4. Clamping mechanism; 401. Second motor; 402. Movable shaft; 403. Transmission gear; 404. Transmission internal gear; 405. Third bevel gear; 406. Fourth bevel gear; 407. Movable screw; 408. Square screw barrel; 409. Clamping block; 410. Square through hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-7 One embodiment provided by the present invention:

[0032] A surface hardening device for producing high-speed steel cutting tools includes a base 101. A control console 102 is fixedly connected to the left side of the outer ring at the top of the base 101. A heating furnace 103 is fixedly connected to the front side of the outer ring at the top of the base 101. A hardening tank 104 is fixedly connected to the right side of the outer ring at the top of the base 101. A rotating column 105 is movably connected to the middle of the top of the base 101. A rotating frame 106 is fixedly connected to the upper part of the outer wall of the rotating column 105. A lifting plate 107 is provided inside the rotating frame 106. A transmission box 108 is fixedly connected to the lower left side of the lifting plate 107. A linkage box 109 is fixedly connected to the middle of the top of the lifting plate 107. A rotating cylinder 110 is inserted inside the right side of the lifting plate 107. A clamping box 111 is fixedly connected to the bottom of the rotating cylinder 110.

[0033] The transmission box 108 is equipped with a lifting mechanism 2, which includes a transmission worm gear 205. Both ends of the transmission worm gear 205 are movably connected to the right side of the inner wall of the transmission box 108. A first motor 201 is fixedly connected to the top left side of the linkage box 109. A transmission shaft 202 is fixedly connected to the bottom center of the first motor 201. The bottom end of the transmission shaft 202 passes through the linkage box 109 and the lifting plate 107 and is fixedly connected to a first bevel gear 203. This design enables the first motor 201 to drive the first bevel gear 203 to rotate in a limited position. The bottom of the first bevel gear 203 is meshed with a second bevel gear 204. The inner... The transmission worm gear 205 is fixedly connected to the middle of its outer wall. The transmission worm gear 205 has transmission worm wheels 206 connected to both sides of its outer wall. This design enables the transmission worm gear 205 to drive the transmission worm wheels 206 to rotate synchronously. The inner wall of the transmission worm wheel 206 is fitted with a fixing screw 207. The two ends of the fixing screw 207 pass through the transmission box 108 and the lifting plate 107 and are fixedly connected to the inner wall of the rotating frame 106. The inner wall of the transmission worm wheel 206 has threaded holes 208 corresponding to the fixing screw 207. This design enables the transmission worm wheel 206 to drive the transmission box 108, the lifting plate 107, the rotating cylinder 110, and the clamping box 111 to slide up and down.

[0034] The top of the clamping box 111 is provided with a rotating mechanism 3, which includes a rotating internal gear 306. The bottom of the rotating internal gear 306 is fixedly connected to the top outer ring of the clamping box 111. The outer wall of the transmission shaft 202 is located inside the linkage box 109 and is fixedly connected to the driving wheel 301. The outer wall of the driving wheel 301 is meshed with the transmission belt 302. The right side of the inner wall of the transmission belt 302 is meshed with the driven wheel 303. Through this design, the first motor 201 drives the driven wheel 303 to rotate synchronously, so that the lifting mechanism 2 and the rotating mechanism 3 are linked. The bottom middle of the driven wheel 303 is fixedly connected to the rotating shaft 304. The bottom end of the rotating shaft 304 passes through the lifting plate 107 and is fixedly connected to the rotating gear 305. The outer wall of the rotating gear 305 is meshed with the inner wall of the rotating internal gear 306. Through this design, the rotating shaft 304 drives the rotating gear 305, the rotating internal gear 306 and the clamping box 111 to rotate.

[0035] The clamping box 111 is equipped with a clamping mechanism 4, which includes a second motor 401. The top of the second motor 401 is fixedly connected to the inner ring of the inner wall of the clamping box 111. A movable shaft 402 is fixedly connected to the middle of the bottom of the second motor 401. A transmission gear 403 is fixedly connected to the bottom end of the movable shaft 402. A transmission internal gear 404 is meshed with the outer wall of the transmission gear 403. The transmission internal gear 404 is limited and sleeved inside the lower part of the clamping box 111. Through this design, the second motor 401 drives the transmission internal gear 404 to rotate in a limited position. A third bevel gear 405 is fixedly connected to the top of the transmission internal gear 404. Three sets of fourth bevel gears 406 are meshed with the top of the third bevel gear 405. The fourth bevel gears 406 are evenly distributed. On the top outer ring of the third bevel gear 405, this design enables the third bevel gear 405 to drive the fourth bevel gear 406 to rotate synchronously. The inner wall of the fourth bevel gear 406 is fixedly connected to a movable screw 407, and the outer end of the movable screw 407 is movably connected to the inner outer wall of the clamping box 111. This design enables the fourth bevel gear 406 to drive the movable screw 407 to rotate in a limited position. The inner end of the movable screw 407 is fitted with a square screw cylinder 408. The inner end of the square screw cylinder 408 passes through the inner side wall of the clamping box 111 and is fixedly connected to a clamping block 409. The inner side wall of the clamping box 111 is provided with a square through hole 410 corresponding to the square screw cylinder 408. This design enables the square screw cylinder 408 to drive the clamping block 409 to slide symmetrically and synchronously along the central axis.

[0036] Working principle: When the tool needs to be raised or lowered, the first motor 201 is started via the control console 102. The first motor 201 drives the transmission shaft 202 to rotate, which in turn drives the first bevel gear 203 to rotate synchronously. The first bevel gear 203 meshes with and drives the second bevel gear 204 to rotate, which in turn drives the transmission worm gear 205 to rotate to a limit position. The transmission worm gear 205 meshes with and drives the transmission worm wheel 206 to rotate synchronously. The transmission worm wheel 206 is restricted by the threaded hole 208 and the fixing screw 207, which causes the transmission worm wheel 206 to drive the transmission box 108, the lifting plate 107, the rotating cylinder 110, and the clamping box 111 to slide up and down. The clamping box 111 drives the tool to slide synchronously, thus realizing the tool raising and lowering operation.

[0037] When the tool needs to be rotated, the first motor 201 is started via the control console 102. The first motor 201 drives the transmission shaft 202 to rotate, which in turn drives the drive wheel 301 to rotate synchronously. The drive wheel 301 engages with the transmission belt 302 to rotate synchronously, which in turn drives the driven wheel 303 to rotate. The driven wheel 303 drives the rotating shaft 304 to rotate to a limit position, which in turn drives the rotating gear 305 to rotate synchronously. The rotating gear 305 engages with the rotating internal gear 306, the clamping box 111, and the tool to rotate to a limit position, thus realizing the tool rotation operation.

[0038] When the tool needs to be clamped, the control console 102 first drives the second motor 401, which in turn drives the movable shaft 402 to rotate. The movable shaft 402 drives the transmission gear 403 to rotate synchronously. The transmission gear 403 meshes with and drives the internal transmission gear 404 to rotate. The internal transmission gear 404 drives the third bevel gear 405 to rotate synchronously. The third bevel gear 405 meshes with and drives the fourth bevel gear 406 to rotate synchronously. The fourth bevel gear 406 drives the movable screw 407 to rotate synchronously and limit its movement. The movable screw 407 drives the square screw cylinder 408 to slide within the square through hole 410 and limit its movement. The square screw cylinder 408 drives the clamping block 409 to slide symmetrically and synchronously along the central axis, thus realizing the tool clamping operation. The operation ends here.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A surface hardening device for producing high-speed steel cutting tools, comprising a base, characterized in that: A control console is fixedly connected to the left side of the outer ring at the top of the base. A heating furnace is fixedly connected to the front side of the outer ring at the top of the base. A quenching tank is fixedly connected to the right side of the outer ring at the top of the base. A rotating column is movably connected to the middle of the top of the base. A rotating frame is fixedly connected to the upper part of the outer wall of the rotating column. A lifting plate is provided inside the rotating frame. A transmission box is fixedly connected to the lower left side of the lifting plate. A linkage box is fixedly connected to the middle of the top of the lifting plate. A rotating cylinder is inserted inside the right side of the lifting plate. A clamping box is fixedly connected to the bottom of the rotating cylinder. The transmission box is equipped with a lifting mechanism, which includes a transmission worm gear. The two ends of the transmission worm gear are movably connected to the right side of the inner wall of the transmission box. The top of the clamping box is equipped with a rotating mechanism, which includes a rotating internal gear. The bottom of the rotating internal gear is fixedly connected to the top outer ring of the clamping box. The clamping box is equipped with a clamping mechanism, which includes a second motor. The top of the second motor is fixedly connected to the top inner ring of the inner wall of the clamping box. A rotating shaft is fixedly connected to the bottom center of the driven wheel. The bottom end of the rotating shaft passes through the lifting plate and is fixedly connected to a rotating gear. The outer wall of the rotating gear meshes with the inner wall of the rotating internal gear. The bottom center of the second motor is fixedly connected to a movable shaft, the bottom end of the movable shaft is fixedly connected to a transmission gear, the outer wall of the transmission gear is meshed with an internal transmission gear, and the internal transmission gear is limited and sleeved inside the lower part of the clamping box. A third bevel gear is fixedly connected to the top of the internal transmission gear, and three sets of fourth bevel gears are meshed with the top of the third bevel gear. The fourth bevel gears are evenly distributed on the top outer ring of the third bevel gear. A movable screw is fixedly connected to the inner wall of the fourth bevel gear, and the outer end of the movable screw is movably connected to the inner outer wall of the clamping box. A square screw cylinder is fitted inside the movable screw. The inner end of the square screw cylinder passes through the inner wall of the clamping box and is fixedly connected to a clamping block. A square through hole corresponding to the square screw cylinder is opened on the inner wall of the clamping box.

2. The surface hardening equipment for producing high-speed steel cutting tools according to claim 1, characterized in that: A first motor is fixedly connected to the top left side of the linkage box, and a transmission shaft is fixedly connected to the bottom middle of the first motor. The bottom end of the transmission shaft passes through the linkage box and the lifting plate and is fixedly connected to a first bevel gear.

3. The surface hardening equipment for producing high-speed steel cutting tools according to claim 2, characterized in that: The bottom of the first bevel gear is meshed with a second bevel gear, the inner wall of the second bevel gear is fixedly connected to the middle of the outer wall of the transmission worm, and transmission worm wheels are connected to both sides of the outer wall of the transmission worm.

4. The surface hardening equipment for producing high-speed steel cutting tools according to claim 3, characterized in that: A fixing screw is inserted into the inner wall of the transmission worm gear. The two ends of the fixing screw pass through the transmission box and the lifting plate and are fixedly connected to the inner wall of the rotating frame. The inner wall of the transmission worm gear has threaded holes corresponding to the fixing screw.

5. The surface hardening equipment for producing high-speed steel cutting tools according to claim 2, characterized in that: The drive shaft has a drive wheel fixedly connected to the outer wall inside the linkage box. The drive wheel has a drive belt meshing with its outer wall, and the drive belt has a driven wheel meshing with its inner right side wall.

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