A CNC guide rail quenching machine tool with electromagnetic induction heating

Abstract

The present invention relates to the technical field of quenching machine tools, and specifically to a CNC guide rail quenching machine tool with electromagnetic induction heating, which solves the problems that the existing CNC machine tools cannot guarantee the quenching area of ​​the workpiece when quenching the workpiece, the lubrication of the machine tool guide rails is easily affected by quenching, and it is inconvenient to transport and load and unload the workpiece. A CNC guide rail quenching machine tool with electromagnetic induction heating includes a quenching mechanism, a guide rail driving mechanism and a separation and protection mechanism. The guide rail driving mechanism is installed on the inner side of the quenching mechanism, and the separation and protection mechanism is installed on the inner side of the guide rail driving mechanism. An induction heating mechanism is installed on one side of the guide rail driving mechanism, and a feeding and changing mechanism is installed on one side of the induction heating mechanism. The present invention facilitates rapid loading and unloading by automatically conveying the workpiece, and can isolate and lubricate the machine tool guide rails to improve operational stability, while being able to control the quenching area of ​​the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of quenching machine tools, in particular to a numerically controlled guide rail quenching machine tool using electromagnetic induction heating. Background Art

[0002] Quenching machine tools, as the name implies, generally refer to special machine tools that use induction heating power for quenching processes. They have the advantages of high precision, good reliability, time saving and labor saving. Quenching machine tools are divided into two categories: vertical and horizontal. Users can choose quenching machine tools according to the quenching process. Quenching can improve the durability and toughness of parts. The rapid cooling process allows the surface of metal parts to reach the quenching temperature, and then immediately cools to fix the high-temperature structure. Quenching can significantly improve the physical properties of metal materials.

[0003] The existing CNC machine tools cannot guarantee the quenching area of ​​the workpiece when quenching the workpiece, the lubrication of the machine tool guide rails is easily affected by quenching, and it is not convenient to transport and load and unload the workpiece; therefore, it does not meet the existing needs. We have proposed a CNC guide rail quenching machine tool with electromagnetic induction heating. Summary of the invention

[0004] The object of the present invention is to provide a CNC guide rail quenching machine tool with electromagnetic induction heating, so as to solve the problems raised in the above background technology that the existing CNC machine tools cannot ensure the quenching area of ​​the workpiece when quenching the workpiece, the lubrication of the machine tool guide rails is easily affected by quenching, and it is inconvenient to transport and load and unload the workpiece.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an electromagnetic induction heating CNC guide rail quenching machine tool, comprising a quenching installation mechanism, a guide rail driving mechanism and a separation protection mechanism, wherein the guide rail driving mechanism is installed on the inner side of the quenching installation mechanism, the separation protection mechanism is installed on the inner side of the guide rail driving mechanism, an induction heating mechanism is installed on one side of the guide rail driving mechanism, a feeding and changing mechanism is installed on one side of the induction heating mechanism, the quenching installation mechanism comprises a drain support base, and a protective cover is fixedly installed on the upper end of the drain support base;

[0006] The guide rail driving mechanism includes a guide driving box, which is fixedly connected to the protective cover, a first transmission motor is fixedly installed on the upper end of the guide driving box, a height adjustment sleeve is slidably connected to one side of the guide driving box, a sliding sleeve is slidably connected to the outer side of the height adjustment sleeve, an electric clamping chuck is fixedly installed on the lower end surface of the sliding sleeve, an electric push rod is fixedly installed on the inner side of the height adjustment sleeve, a breathable plate is fixedly installed on the other side of the guide driving box, a guide rail frame is fixedly installed on the inner side of the guide driving box, a transmission slider is slidably connected to one side of the guide rail frame, a transmission screw is installed on the inner side of the middle part of the transmission slider, and a lubricating oil tank, a heat sink and a water tank are fixedly installed on the other side of the guide rail frame from top to bottom.

[0007] Preferably, the installed quenching mechanism also includes a reflux box fixedly connected to the lower end surface of the drainage support base, a filter element is provided on the inner side of the reflux box, a reflux pipe is fixedly installed at one end of the reflux box, spray racks are fixedly installed on the front and rear end surfaces of the protective cover, an output pipe is provided at the bottom end of the spray rack, and a feed port is provided on one side of the protective cover.

[0008] Preferably, the separation protection mechanism includes a follower plate, which is fixedly mounted on the outer side of the height adjustment sleeve, and dustproof belts are fixedly installed on both upper and lower ends of the follower plate, and a winding frame is installed on the end of the dustproof belt away from the follower plate, a guide roller is installed on one side of the winding frame, and a transmission chain is installed between the two winding frames.

[0009] Preferably, the induction heating mechanism includes a thermal insulation support seat, which is fixedly connected to the drainage support base, and a heating installation sleeve is fixedly installed on the upper end surface of the thermal insulation support seat, and a plurality of heating rings are fixedly installed on the inner side of the upper end of the heating installation sleeve, and the plurality of heating rings are linearly arranged along the axis of the heating installation sleeve, and a spiral electromagnetic coil is provided inside the heating ring, and the number of turns of the plurality of electromagnetic coils increases successively from top to bottom along the axis of the heating installation sleeve.

[0010] Preferably, the material feeding and replacement mechanism includes a transfer box, which is fixedly connected to the protective cover, a second transmission motor is fixedly mounted on the upper end surface of the transfer box, an annular conveyor belt is movably mounted on the inner side of the bottom end of the transfer box, a plurality of workpiece placement seats are fixedly mounted on the upper end surface of the annular conveyor belt, transmission wheels are mounted on the inner sides of both ends of the annular conveyor belt, and a transmission shaft is fixedly mounted on the inner side of the middle part of the transmission wheel.

[0011] Preferably, the upper end of the return pipe passes through the protective cover and the air permeable plate and is plugged into the interior of the water tank. The water tank and the return box are connected via the return pipe. One end of the output pipe passes through the protective cover and the guide drive box and is plugged into the interior of the water tank. The water tank and two spray racks are connected via the output pipe. The two spray racks are symmetrically installed relative to the heating mounting sleeve.

[0012] Preferably, the transmission box is through-connected with the feed port, the upper and lower ends of the transmission shaft are rotatably connected to the transmission box through bearings, the output end of the second transmission motor passes through the transmission box and is connected to one of the transmission shafts through a coupling, and the two transmission shafts are connected to the annular transmission belt through a transmission wheel.

[0013] Preferably, two heat dissipation bins are provided inside the heat dissipation box, the lubricating oil tank and the water tank are respectively connected to the two heat dissipation bins, the output end of the first transmission motor passes through the guide drive box and is connected to the transmission screw through a coupling, the transmission screw is connected to the transmission slider through a thread, and the transmission slider slides vertically back and forth along the axis of the transmission screw.

[0014] Preferably, one end of the height adjustment sleeve passes through the guide drive box and is fixedly connected to the transmission slider, the output end of the electric push rod passes through the height adjustment sleeve and is fixedly connected to the sliding sleeve, and the sliding sleeve slides horizontally back and forth along the axis of the height adjustment sleeve.

[0015] Preferably, both ends of the reeling frame and the guide roller are rotatably connected to the guide drive box, one end of the dustproof belt away from the follower plate is wound and installed on the middle part of the reeling frame, a transmission sprocket is provided at one end of the reeling frame, and the upper and lower ends of the transmission chain are connected to the two reeling frames through the transmission sprocket.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention drives the workpiece on the workpiece placement seat to be transported in an annular manner through the transmission shaft, the transmission wheel and the annular transmission belt, the electric push rod drives the electric clamping chuck to slide horizontally through the sliding sleeve, the first transmission motor drives the transmission slide block to slide vertically through the transmission screw, and then the transmission slide block drives the electric clamping chuck to move downward and clamp the workpiece through the height adjustment sleeve and the sliding sleeve, and multiple heating rings are linearly arranged along the axis of the heating installation sleeve, and a spiral electromagnetic coil is provided inside the heating ring. The number of turns of the multiple electromagnetic coils increases from top to bottom along the axis of the heating installation sleeve, so that the electromagnetic induction heating operation can be performed on the workpiece through the electromagnetic coil, and the heating area can be controlled to adjust the quenching effect;

[0018] 2. The present invention extracts the internal water of the water tank through the electric clamping chuck and the sliding sleeve plate and fully sprays the workpiece to achieve the quenching operation of the workpiece. The waste water after quenching is filtered by the filter element and then flows back to the inner side of the water tank through the reflux pipe. Then, the water tank can realize the circulation heat dissipation of the water through the heat dissipation box to maintain the quenching effect. At the same time, the lubricating oil inside the lubricating oil tank is input into the inner side of the heat dissipation box after lubricating the transmission screw and the guide rail frame to achieve heat dissipation, thereby maintaining the transmission lubrication effect of the transmission slider, the transmission screw and the guide rail frame;

[0019] 3. The present invention is installed by winding the dustproof belt with the reel-up frame, and both ends of the reel-up frame and the guide roller are rotatably connected to the guide drive box, and the two reel-up frames are connected to the transmission chain through the transmission sprocket. When the height adjustment sleeve performs vertical reciprocating sliding, the two dustproof belts are driven by the follower plate to be synchronously reeled and unwound on the outside of the reel-up frame, which can block one side of the guide drive box in real time to prevent external dust and water droplets from entering and affecting the transmission stability of the transmission slider, the transmission screw and the guide frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation structure of the material feeding replacement mechanism of the present invention;

[0022] Figure 3 It is a partial cross-sectional structural schematic diagram of the material feeding and changing mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the drain support base of the present invention;

[0024] Figure 5 It is a schematic diagram of the installation structure of the induction heating mechanism of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the guide drive box of the present invention;

[0026] Figure 7 It is a schematic cross-sectional structure diagram of the guide rail driving mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the A area in the middle;

[0028] Fig. 9 It is a structural schematic diagram of the separation protection mechanism of the present invention.

[0029] In the figure: 1. Install the quenching mechanism; 101. Drain support base; 102. Reflux box; 103. Protective cover; 104. Spray rack; 105. Output pipe; 106. Feed port; 107. Reflux pipe; 108. Filter element; 2. Guide rail drive mechanism; 201. Guide drive box; 202. First transmission motor; 203. Breathable plate; 204. Sliding sleeve; 205. Electric clamping chuck; 206. Height adjustment sleeve; 207. Drive screw; 208. Guide rail rack; 209. Lubricating oil tank; 210. Heat dissipation Box; 211, water storage tank; 212, transmission slider; 213, electric push rod; 3, material feeding and changing mechanism; 301, transmission box; 302, second transmission motor; 303, transmission shaft; 304, transmission wheel; 305, ring transmission belt; 306, workpiece placement seat; 4, induction heating mechanism; 401, insulation support seat; 402, heating installation sleeve; 403, heating ring; 5, partition protection mechanism; 501, follower plate; 502, dustproof belt; 503, reeling frame; 504, guide roller; 505, transmission chain. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] The first transmission motor 202 (model: YS7134), the electric push rod 213 (model: LBP40) and the second transmission motor 302 (model: GV50-3.7KW-60-S) mentioned in the present invention can all be purchased from the market or obtained through private customization.

[0032] See also Figures 1 to 7 The present invention provides an embodiment: a CNC guide rail quenching machine tool with electromagnetic induction heating, comprising a quenching mechanism 1, a guide rail driving mechanism 2 and a separation protection mechanism 5, wherein the guide rail driving mechanism 2 is installed on the inner side of the quenching mechanism 1, the separation protection mechanism 5 is installed on the inner side of the guide rail driving mechanism 2, an induction heating mechanism 4 is installed on one side of the guide rail driving mechanism 2, and a feeding replacement mechanism 3 is installed on one side of the induction heating mechanism 4, the quenching mechanism 1 comprises a drain support base 101, the drain support base 101 A protective cover 103 is fixedly installed on the upper end, a return box 102 is fixedly connected to the lower end surface of the drain support base 101, a filter element 108 is provided on the inner side of the return box 102, a return pipe 107 is fixedly installed on one end of the return box 102, a spray rack 104 is fixedly installed on the front and rear end surfaces of the protective cover 103, an output pipe 105 is provided at the bottom end of the spray rack 104, a feed port 106 is provided on one side of the protective cover 103, and the cooling water filtered by the filter element 108 can be refluxed through the return pipe 107 for recycling.

[0033] See also Figures 1 to 9 The guide rail driving mechanism 2 includes a guide driving box 201, which is fixedly connected to the protective cover 103. A first transmission motor 202 is fixedly installed on the upper end of the guide driving box 201. A height adjustment sleeve 206 is slidably connected to one side of the guide driving box 201. A sliding sleeve 204 is slidably connected to the outer side of the height adjustment sleeve 206. An electric clamping chuck 205 is fixedly installed on the lower end surface of the sliding sleeve 204. An electric push rod 213 is fixedly installed on the inner side of the height adjustment sleeve 206. One end of the height adjustment sleeve 206 penetrates the guide driving box 201 and is fixedly connected to the transmission slider 212. The output end of the electric push rod 213 penetrates the height adjustment sleeve 206 and is fixedly connected to the sliding sleeve 204. The sliding sleeve 204 slides horizontally back and forth along the axis of the height adjustment sleeve 206, so that the electric push rod 213 drives the electric clamping chuck 205 to move horizontally through the sliding sleeve 204 under the support of the height adjustment sleeve 206;

[0034] A breathable plate 203 is fixedly installed on the other side of the guide drive box 201, a guide rail frame 208 is fixedly installed on the inner side of the guide drive box 201, a transmission slider 212 is slidably connected to one side of the guide rail frame 208, a transmission screw 207 is installed on the inner side of the middle of the transmission slider 212, the output end of the first transmission motor 202 passes through the guide drive box 201 and is connected to the transmission screw 207 through a coupling, the transmission screw 207 and the transmission slider 212 are threadedly connected, and the transmission slider 212 slides vertically back and forth along the axis of the transmission screw 207, so that the first transmission motor 202 drives the transmission slider 212 to slide vertically under the guidance of the guide rail frame 208 through the transmission screw 207, and then the transmission slider 212 drives the electric clamping chuck 205 to move downward through the height adjustment sleeve 206 and the sliding sleeve 204 to clamp the workpiece;

[0035] The other side of the guide rail frame 208 is fixedly installed with a lubricating oil tank 209, a heat dissipation box 210 and a water storage tank 211 in order from top to bottom. The upper end of the return pipe 107 passes through the protective cover 103 and the air permeable plate 203 and is plugged into the inside of the water storage tank 211. The water storage tank 211 is connected to the return box 102 through the return pipe 107. One end of the output pipe 105 passes through the protective cover 103 and the guide drive box 201 and is plugged into the inside of the water storage tank 211. The water storage tank 211 and the two spray racks 104 are connected through the output pipe 107. 5 is through-connected, and two heat dissipation chambers are arranged inside the heat dissipation box 210, and the lubricating oil tank 209 and the water tank 211 are through-connected with the two heat dissipation chambers respectively. The water tank 211 can realize the circulation heat dissipation of the water body through the heat dissipation box 210 to maintain the quenching effect. At the same time, the lubricating oil inside the lubricating oil tank 209 is input into the inner side of the heat dissipation box 210 to realize heat dissipation after lubricating the transmission screw 207 and the guide rail frame 208, so as to maintain the transmission lubrication effect of the transmission slider 212, the transmission screw 207 and the guide rail frame 208.

[0036] See also Figure 4 and Fig. 9 The separation protection mechanism 5 includes a follower plate 501, which is fixedly sleeved on the outer side of the height adjustment sleeve 206. The upper and lower ends of the follower plate 501 are fixedly installed with dust belts 502. The end of the dust belt 502 away from the follower plate 501 is installed with a reeling frame 503. A guide roller 504 is installed on one side of the reeling frame 503. A transmission chain 505 is installed between the two reeling frames 503. Both ends of the reeling frame 503 and the guide roller 504 are rotated with the guide drive box 201. The dustproof belt 502 is connected, and one end of the dustproof belt 502 away from the follower plate 501 is wound and installed on the middle part of the reel-up frame 503. A transmission sprocket is provided at one end of the reel-up frame 503. The upper and lower ends of the transmission chain 505 are connected to the two reel-up frames 503 through the transmission sprocket. The two dustproof belts 502 are driven by the follower plate 501 to seal one side of the guide drive box 201 in real time to prevent external dust and water droplets from entering and affecting the transmission stability of the transmission slider 212, the transmission screw 207 and the guide rail frame 208.

[0037] See also Figures 1 to 3The feeding and changing mechanism 3 includes a transmission box 301, which is fixedly connected to the protective cover 103. A second transmission motor 302 is fixedly installed on the upper end surface of the transmission box 301. An annular transmission belt 305 is movably installed on the inner side of the bottom end of the transmission box 301. A plurality of workpiece placement seats 306 are fixedly installed on the upper end surface of the annular transmission belt 305. Transmission wheels 304 are installed on the inner sides of both ends of the annular transmission belt 305. A transmission shaft 303 is fixedly installed on the inner side of the middle part of the transmission wheel 304. The transmission box 301 is connected to the feeding port 106. The transmission shaft 303 is connected through, and the upper and lower ends of the transmission shaft 303 are rotatably connected to the transmission box 301 through bearings. The output end of the second transmission motor 302 passes through the transmission box 301 and is connected to one of the transmission shafts 303 through a coupling. The two transmission shafts 303 are connected to the annular transmission belt 305 through the transmission wheel 304, so that the second transmission motor 302, under the support of the transmission box 301, drives the workpiece on the workpiece placement seat 306 for circular transportation through the transmission shaft 303, the transmission wheel 304 and the annular transmission belt 305.

[0038] See also Figures 2 to 5 The induction heating mechanism 4 includes a thermal insulation support seat 401, which is fixedly connected to the drainage support base 101. A heating installation sleeve 402 is fixedly installed on the upper end surface of the thermal insulation support seat 401. Two spray racks 104 are symmetrically installed relative to the heating installation sleeve 402. A plurality of heating rings 403 are fixedly installed on the inner side of the upper end of the heating installation sleeve 402. The plurality of heating rings 403 are linearly arranged along the axis of the heating installation sleeve 402. A spiral electromagnetic coil is provided inside the heating ring 403. The number of turns of the plurality of electromagnetic coils increases successively from top to bottom along the axis of the heating installation sleeve 402. The heating area of ​​the workpiece can be controlled by the plurality of heating rings 403.

[0039] In summary, a feeding port 106 is provided on one side of the protective cover 103, so that the transmission box 301 is connected with the feeding port 106 by a through connection, the power is turned on, and the workpiece to be quenched is placed on the upper end surface of the workpiece placement seat 306 through the feeding port 106, and the second transmission motor 302 is started, so that the second transmission motor 302 drives the workpiece on the workpiece placement seat 306 to be transported in an annular manner through the transmission shaft 303, the transmission wheel 304 and the annular transmission belt 305 under the support of the transmission box 301, and when the workpiece is transported to the right place, the electric push rod 213 is started, so that the electric push rod 213 drives the electric clamping chuck 205 to slide horizontally to the top of the workpiece through the sliding sleeve 204 under the support of the height adjustment sleeve 206;

[0040] Start the first transmission motor 202, so that the first transmission motor 202 drives the transmission slider 212 to slide vertically under the guidance of the guide frame 208 through the transmission screw 207 under the support of the guide drive box 201, and then the transmission slider 212 drives the electric clamping chuck 205 to move downward and clamp the workpiece through the height adjustment sleeve 206 and the sliding sleeve 204. The electric clamping chuck 205 is driven by the electric push rod 213 to move until it coincides with the axis of the heating installation sleeve 402, and then it is moved downward by the first transmission motor 202, and then the electric clamping chuck 205 drives the workpiece to move downward and be plugged into the inner side of the heating ring 403.

[0041] A plurality of heating rings 403 are linearly arranged along the axis of the heating installation sleeve 402. A spiral electromagnetic coil is provided inside the heating ring 403. The number of turns of the plurality of electromagnetic coils increases from top to bottom along the axis of the heating installation sleeve 402, so that the electromagnetic coils can perform electromagnetic induction heating operation on the workpiece. After heating, the electric clamping chuck 205 and the sliding sleeve plate 204 are used to extract the internal water of the water storage tank 211 and fully spray the workpiece, so as to realize the quenching operation on the workpiece.

[0042] Two heat dissipation bins are arranged on the inner side of the heat dissipation box 210, and the lubricating oil tank 209 and the water tank 211 are respectively connected to the two heat dissipation bins, so that the waste water after quenching is filtered by the filter element 108 and then flows back to the inner side of the water tank 211 through the reflux pipe 107, and then the water tank 211 can realize the circulation heat dissipation of the water body through the heat dissipation box 210 to maintain the quenching effect, and at the same time, the lubricating oil inside the lubricating oil tank 209 is input into the inner side of the heat dissipation box 210 after lubricating the transmission screw 207 and the guide rail frame 208 to realize heat dissipation, and maintain the transmission lubrication effect of the transmission slider 212, the transmission screw 207 and the guide rail frame 208;

[0043] The dustproof belt 502 is wound and installed on the reel-up frame 503, and the two ends of the reel-up frame 503 and the guide roller 504 are rotatably connected to the guide drive box 201. The two reel-up frames 503 are connected to the transmission chain 505 through a transmission sprocket. When the height adjustment sleeve 206 slides vertically back and forth, the two dustproof belts 502 are driven by the follower plate 501 to be synchronously reeled and unwound on the outside of the reel-up frame 503, which can block one side of the guide drive box 201 in real time to prevent external dust and water droplets from entering and affecting the transmission stability of the transmission slider 212, the transmission screw 207 and the guide frame 208.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A CNC guide rail quenching machine tool with electromagnetic induction heating, comprising a quenching mechanism (1), a guide rail driving mechanism (2) and a partition protection mechanism (5), characterized in that: A guide rail drive mechanism (2) is installed on the inner side of the installation quenching mechanism (1), a partition protection mechanism (5) is installed on the inner side of the guide rail drive mechanism (2), an induction heating mechanism (4) is installed on one side of the guide rail drive mechanism (2), a material feeding replacement mechanism (3) is installed on one side of the induction heating mechanism (4), and the installation quenching mechanism (1) comprises a drain support base (101), and a protective cover (103) is fixedly installed on the upper end of the drain support base (101); The guide rail driving mechanism (2) comprises a guide driving box (201), the guide driving box (201) being fixedly connected to the protective cover (103), a first transmission motor (202) being fixedly mounted on the upper end of the guide driving box (201), a height adjustment sleeve (206) being slidably connected to one side of the guide driving box (201), a sliding sleeve (204) being slidably connected to the outer side of the height adjustment sleeve (206), an electric clamping chuck (205) being fixedly mounted on the lower end surface of the sliding sleeve (204), and the height adjustment sleeve (20 6) is fixedly mounted on the inner side thereof, a breathable plate (203) is fixedly mounted on the other side of the guide drive box (201), a guide rail frame (208) is fixedly mounted on the inner side of the guide drive box (201), a transmission slider (212) is slidably connected to one side of the guide rail frame (208), a transmission screw (207) is mounted on the inner side of the middle portion of the transmission slider (212), and a lubricating oil tank (209), a heat dissipation box (210) and a water storage tank (211) are fixedly mounted on the other side of the guide rail frame (208) in order from top to bottom; The induction heating mechanism (4) comprises a thermal insulation support seat (401), the thermal insulation support seat (401) is fixedly connected to the drain support base (101), a heating installation sleeve (402) is fixedly installed on the upper end surface of the thermal insulation support seat (401), a plurality of heating rings (403) are fixedly installed on the inner side of the upper end of the heating installation sleeve (402), the plurality of heating rings (403) are linearly arranged along the axis of the heating installation sleeve (402), a spiral electromagnetic coil is provided inside the heating ring (403), and the number of turns of the plurality of electromagnetic coils increases from top to bottom along the axis of the heating installation sleeve (402); The material feeding and changing mechanism (3) comprises a transmission box (301), the transmission box (301) is fixedly connected to the protective cover (103), a second transmission motor (302) is fixedly mounted on the upper end surface of the transmission box (301), an annular transmission belt (305) is movably mounted on the inner side of the bottom end of the transmission box (301), a plurality of workpiece placement seats (306) are fixedly mounted on the upper end surface of the annular transmission belt (305), transmission wheels (304) are mounted on the inner sides of both ends of the annular transmission belt (305), and a transmission shaft (303) is fixedly mounted on the inner side of the middle part of the transmission wheel (304); One end of the height adjustment sleeve (206) passes through the guide drive box (201) and is fixedly connected to the transmission slider (212); the output end of the electric push rod (213) passes through the height adjustment sleeve (206) and is fixedly connected to the sliding sleeve (204); the sliding sleeve (204) slides horizontally back and forth along the axis of the height adjustment sleeve (206).

2. The electromagnetic induction heating CNC guide rail quenching machine tool according to claim 1, characterized in that: The quenching installation mechanism (1) further comprises a reflux box (102) fixedly connected to the lower end surface of the drain support base (101), a filter element (108) being provided on the inner side of the reflux box (102), a reflux pipe (107) being fixedly installed on one end of the reflux box (102), a spray rack (104) being fixedly installed on the front and rear end surfaces of the protective cover (103), an output pipe (105) being provided at the bottom end of the spray rack (104), and a material delivery port (106) being provided on one side of the protective cover (103).

3. The electromagnetic induction heating CNC guide rail quenching machine tool according to claim 2, characterized in that: The separation protection mechanism (5) comprises a follower plate (501), the follower plate (501) being fixedly sleeved on the outer side of the height adjustment sleeve plate (206), dustproof belts (502) being fixedly mounted on both upper and lower ends of the follower plate (501), a reeling frame (503) being mounted on one end of the dustproof belt (502) away from the follower plate (501), a guide roller (504) being mounted on one side of the reeling frame (503), and a transmission chain (505) being mounted between the two reeling frames (503).

4. The electromagnetic induction heating CNC guide rail quenching machine tool according to claim 3, characterized in that: The upper end of the return pipe (107) passes through the protective cover (103) and the air permeable plate (203) and is plugged into the interior of the water storage tank (211); the water storage tank (211) and the return box (102) are connected via the return pipe (107); one end of the output pipe (105) passes through the protective cover (103) and the guide drive box (201) and is plugged into the interior of the water storage tank (211); the water storage tank (211) and the two spray racks (104) are connected via the output pipe (105); the two spray racks (104) are symmetrically installed relative to the heating installation sleeve (402).

5. The electromagnetic induction heating CNC guide rail quenching machine tool according to claim 4, characterized in that: The transmission box (301) is connected to the feeding port (106); the upper and lower ends of the transmission shaft (303) are rotatably connected to the transmission box (301) via bearings; the output end of the second transmission motor (302) passes through the transmission box (301) and is connected to one of the transmission shafts (303) via a coupling; and the two transmission shafts (303) are connected to the annular transmission belt (305) via a transmission wheel (304).

6. The electromagnetic induction heating CNC guide rail quenching machine tool according to claim 5, characterized in that: Two heat dissipation bins are provided inside the heat dissipation box (210); the lubricating oil tank (209) and the water storage tank (211) are respectively connected to the two heat dissipation bins; the output end of the first transmission motor (202) passes through the guide drive box (201) and is connected to the transmission screw (207) via a coupling; the transmission screw (207) is connected to the transmission slider (212) via threads; and the transmission slider (212) vertically reciprocates along the axis of the transmission screw (207).

7. The electromagnetic induction heating CNC guide rail quenching machine tool according to claim 6, characterized in that: Both ends of the reeling frame (503) and the guide roller (504) are rotatably connected to the guide drive box (201); one end of the dustproof belt (502) away from the follower plate (501) is wound around the middle of the reeling frame (503); a transmission sprocket is provided at one end of the reeling frame (503); and upper and lower ends of the transmission chain (505) are connected to the two reeling frames (503) via the transmission sprocket.

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