Replacing device for induction coil of workpiece quenching machine tool
By designing induction coil replacement devices for protective covers, baffles and clamping protection components, the problems of cumbersome and safety hazards of traditional replacement methods are solved, and convenient and safe coil replacement and equipment stability are achieved.
Patent Information
- Application Number
- CN202510242367.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-07-11
AI Technical Summary
The traditional induction coil replacement method is complicated, with safety hazards and equipment damage risks, and it cannot effectively protect the coil connection parts, affecting the stability and safety of the equipment.
A replacement device including a protective cover, a baffle assembly, a clamping protection assembly and a fixture is designed to prevent quenching liquid from splashing in through the protective cover, the baffle assembly blocks impurities, and the clamping protection assembly realizes rapid clamping and power outage protection, and the fixture provides stable connection and power transmission.
The induction coil replacement process is simplified, the internal structure of the device is protected, liquid corrosion and short circuit are prevented, operation is ensured, and equipment stability and quenching quality are improved.
Smart Images
Figure CN120290825A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of quenching processing, and specifically to a replacement device for an induction coil of a workpiece quenching machine tool. Background Art
[0002] In the field of workpiece quenching processing, the induction coils of quenching machine tools are prone to problems such as wear and aging due to long-term exposure to harsh working environments such as high temperature and high electromagnetic induction, and need to be replaced regularly to ensure quenching quality and production efficiency. However, there are many drawbacks in the traditional induction coil replacement methods.
[0003] The fixing methods of many induction coils of quenching machine tools are relatively cumbersome, and may involve multiple bolts, nuts or complex mechanical structures, making the replacement process require professional tools and a long time, increasing the downtime and labor costs; A large amount of quenching liquid is used during the quenching process, and impurities may splash. The traditional design cannot effectively protect the connection parts and related structures of the induction coil, and the entry of quenching liquid or impurities may cause faults such as short circuits and corrosion, affecting the equipment life and stability; When replacing the induction coil, if the operation is improper, it may cause a safety accident due to accidental contact with live parts. Traditional replacement devices often do not have a reliable power-off protection mechanism, unable to guarantee the safety of operators. Summary of the Invention
[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A replacement device for an induction coil of a workpiece quenching machine tool, comprising: A replacement device and a fixing member detachably installed inside the replacement device. The replacement device makes the replacement of the induction coil more convenient, and the fixing member is used to fix the induction coil; A quenching machine tool, and the replacement device is installed in the assembly area of the quenching machine tool coil; Among them, the replacement device includes a fixing plate fixedly installed on the surface of the quenching machine tool for stably installing the replacement device on the surface of the quenching machine tool. A protective cover is fixedly installed on the surface of the fixing plate. The protective cover is used to protect its internal structure, prevent liquid from splashing during quenching, and avoid damage to internal components or faults such as short circuits. A baffle assembly is installed at the edge of the inner wall of the protective cover. The baffle assembly and the fixing plate are oppositely arranged on both sides of the protective cover. The baffle assembly is used to block external liquid and impurities. Sliding grooves are opened on both sides of the inner wall of the protective cover. A return spring is fixedly installed inside the sliding grooves. A clamping protection assembly is installed inside the protective cover. The fixing member is detachably installed at one end of the clamping protection assembly.
[0005] Preferably, the baffle assembly includes a plate sleeve fixedly installed on both sides of the inner wall of the protective cover. A baffle is slidably installed inside the plate sleeve, and the plate sleeve provides a sliding track for the baffle. A buffer spring is fixedly connected between the end of the baffle and the inner wall of the plate sleeve to buffer the impact force when the fixing member is inserted, protecting the baffle and the fixing member. A hole groove is formed on the surface of the baffle, and the hole groove is arranged at the edge of the baffle, and the edge of the baffle is provided with an inclined slope to facilitate the entry of the fixing member.
[0006] Preferably, the clamping protection assembly includes a sliding ring block and a fixed seat. An annular groove is formed on the inner side surface of the sliding ring block, and a clamping spring is fixedly installed inside the annular groove. The other end of the clamping spring is fixedly connected to a clamping bar, and the annular groove provides space for the contraction and ejection of the clamping bar.
[0007] Preferably, a slider is fixedly connected to the side of the sliding ring block. The slider is slidably installed inside a chute, and the side surface of the slider is connected to the end of a return spring.
[0008] Preferably, the fixed seat is fixedly installed on the inner wall of the protective cover. A fixed rod is fixedly installed in the middle of the fixed seat, and a sliding ring is slidably connected to the outer surface of the fixed rod. The cross-section of the sliding ring is triangular, and a limiting spring is fixedly connected between the sliding ring and the fixed seat.
[0009] Preferably, one end of the fixed rod away from the fixed seat is fixedly connected to a chuck. The chuck is adapted to be pressed against the clamping bar. An insulating pad is fixedly installed on the outer surface of the chuck. When the sliding ring block approaches the chuck, the clamping bar presses against the outer curved surface of the chuck. Under the contraction of the clamping spring, the clamping bar enters the annular groove until the clamping bar is no longer restricted by the extrusion of the chuck and is reset. Under the elastic force of the return spring, the chuck and the clamping bar are locked; The sliding ring can release the locking between the chuck and the clamping bar. When the coil needs to be replaced, push the coil to make the sliding ring block continue to slide. When the clamping bar presses against the sliding ring, the clamping bar enters the annular groove. When the clamping bar is reset, pull out the coil, and the clamping bar drives the sliding ring to slide. When the sliding ring is pressed against and adapted to the inner curved surface of the chuck, the clamping bar slides out of the chuck and contacts the insulating pad to achieve power-off protection.
[0010] Preferably, a fixed ring is fixedly connected to the surface of the sliding ring block. One end of the fixed ring away from the sliding ring block is fixedly connected to a clamping ring, and a clamping groove is formed on the inner side surface of the clamping ring.
[0011] Preferably, the fixing member includes a conical ring sleeve. Heat dissipation holes are formed on the outer surface of the conical ring sleeve to dissipate the heat generated by the induction coil during operation and prevent the coil from overheating and affecting its performance. A clamping ring groove is formed at one end of the conical ring sleeve, and the clamping ring groove is adapted to be clamped with the clamping ring.
[0012] Preferably, a receiving groove is formed inside the clamping ring groove, a clamping spring is fixedly installed inside the receiving groove, the other end of the clamping spring is fixedly connected to a clamping strip, and the clamping strip is clamped and adapted to the clamping groove. During assembly, the conical ring sleeve is inserted into the hole groove, the baffle plate contracts, and the clamping ring is inserted into the clamping ring groove. At this time, the clamping strip is squeezed by the clamping ring, and under the contraction of the clamping spring, the clamping strip enters the receiving groove. When the clamping groove moves to the same position as the receiving groove, the clamping strip enters the clamping groove to achieve the clamping of the conical ring sleeve.
[0013] Preferably, a coil fixing sleeve is fixedly installed on the inner side surface of the conical ring sleeve, and a conductive sheet is fixedly installed inside the conical ring sleeve. The conductive sheet contacts and conducts electricity with the induction coil to provide electrical energy for the induction coil. When the coil is inserted into the conical ring sleeve, the coil fixing sleeve plays a fixing role for the coil, and the coil squeezes the conductive sheet.
[0014] The present invention provides a replacement device for an induction coil of a workpiece quenching machine tool. It has the following beneficial effects: First, in the replacement device for the induction coil of the workpiece quenching machine tool, through the setting of the protective cover and the baffle plate assembly, the protective cover is fixed on the fixing plate, and the baffle plate assembly is installed at the edge of the inner wall of the protective cover. During the quenching process, when liquid and impurities splash, they first contact the baffle plate. If the fixing part is inserted, the baffle plate is squeezed, and it slides and contracts in the plate sleeve through the buffer spring. The protective cover prevents the quenching liquid from splashing into the interior of the replacement device, avoiding damage to the internal structure due to liquid erosion. The baffle plate assembly further blocks external impurities. Its inclined slope and hole groove facilitate the entry of the fixing part, and the buffer spring buffers the impact force when the fixing part is inserted to protect the device components.
[0015] Second, in the replacement device for the induction coil of the workpiece quenching machine tool, through the settings of structures such as the clamping spring and the clamping strip in the clamping protection assembly, when installing the fixing part, the sliding ring block approaches the chuck, the clamping strip is squeezed by the outer curved surface of the chuck, compresses the clamping spring and enters the ring groove. When no longer being squeezed, it resets under the action of the clamping spring and is locked with the chuck. The slider is assisted in locking by the second reset spring, realizing the quick clamping and power-on of the fixing part and the replacement device. The operation is simple, and the clamping spring provides a clamping force to ensure the stable connection of the fixing part during operation.
[0016] Third, in the replacement device for the induction coil of the workpiece quenching machine tool, through the settings of the slip ring and the insulating pad, when replacing the coil, the coil is pushed to make the sliding ring block slide, and the clamping strip squeezes the slip ring into the ring groove. When pulling out the coil, the clamping strip drives the slip ring. When the slip ring is squeezed and adapted to the inner curved surface of the chuck, the clamping strip slides out of the chuck and contacts the insulating pad. The slip ring can release the locking between the chuck and the clamping strip, and when the insulating pad contacts the clamping strip, it realizes power-off protection to prevent operators from getting an electric shock and ensuring personal safety.
[0017] IV. The replacement device for the induction coil of the workpiece quenching machine tool, through the setting of the heat dissipation holes in the fixing part, when the induction coil works and generates heat, the heat is conducted through the conical ring sleeve and dissipated into the surrounding air through the heat dissipation holes. The heat dissipation holes can timely dissipate the heat generated by the induction coil, prevent the performance of the coil from decreasing due to overheating and the shortening of its service life, ensure the stable operation of the induction coil, and improve the quenching quality.
[0018] V. The replacement device for the induction coil of the workpiece quenching machine tool, through the setting of the coil fixing sleeve and the conductive sheet in the fixing part, the coil is inserted into the conical ring sleeve and its position is constrained and fixed by the coil fixing sleeve. At the same time, the conductive sheet is squeezed to achieve the conduction of current. The coil fixing sleeve ensures the accurate position of the induction coil in the fixing part and guarantees the consistency of the quenching effect. The conductive sheet realizes the transmission of electric energy and provides the necessary electric energy for the operation of the induction coil. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is the assembly schematic diagram of the present invention; Figure 2 is the external structure schematic diagram of the present invention; Figure 3 is the external structure schematic diagram of the replacement device of the present invention; Figure 4 is the internal structure schematic diagram of the replacement device of the present invention; Figure 5 is the partial sectional view of the replacement device of the present invention; Figure 6 is the enlarged schematic diagram of part A of the present invention; Figure 7 is the structure schematic diagram of the fixing part of the present invention; Figure 8 is the sectional view of the fixing part of the present invention.
[0020] In the figures: 1. Quenching machine tool; 2. Replacement device; 21. Fixed plate; 22. Protective cover; 23. Baffle assembly; 231. Plate sleeve; 232. Baffle; 233. Hole groove; 234. Buffer spring; 24. Slide groove; 25. Clamping protection assembly; 2501. Sliding ring block; 2502. Ring groove; 2503. Clamping spring; 2504. Card strip; 2505. Fixed seat; 2506. Fixed rod; 2507. Slip ring; 2508. Chuck; 2509. Insulating pad; 2510. Slide block; 2512. Limit spring; 2513. Fixed ring; 2514. Clamping ring; 2515. Clamping groove; 26. Reset spring; 3. Fixed part; 31. Conical ring sleeve; 32. Heat dissipation hole; 33. Clamping ring groove; 34. Coil fixing sleeve; 35. Conductive sheet; 36. Accommodating groove; 37. Clamping spring; 38. Clamping strip. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] The first embodiment is as Figures 1 to 6 shown. The present invention provides a technical solution: a replacement device for an induction coil of a workpiece quenching machine tool, including: The replacement device 2 makes the replacement of the induction coil more convenient; The quenching machine tool 1, and the replacement device 2 is installed in the assembly area of the coil of the quenching machine tool 1; The replacement device 2 includes a fixing plate 21, and the fixing plate 21 is fixedly installed on the surface of the quenching machine tool 1 for stably installing the replacement device 2 on the surface of the quenching machine tool 1. A protective cover 22 is fixedly installed on the surface of the fixing plate 21. The protective cover 22 is used to protect its internal structure, prevent liquid from splashing during quenching, and avoid damage to internal components or faults such as short circuits; At the edge of the inner wall of the protective cover 22, a baffle assembly 23 is installed. The baffle assembly 23 and the fixing plate 21 are oppositely arranged on both sides of the protective cover 22. The baffle assembly 23 is used to block external liquid and impurities. On both sides of the inner wall of the protective cover 22, a chute 24 is opened. A return spring 26 is fixedly installed inside the chute 24. A clamping protection component 25 is installed inside the protective cover 22, and the fixing member 3 is detachably installed at one end of the clamping protection component 25.
[0023] The baffle assembly 23 includes a plate sleeve 231, and the plate sleeve 231 is fixedly installed on both sides of the inner wall of the protective cover 22. A baffle 232 is slidably installed inside the plate sleeve 231. The plate sleeve 231 provides a sliding track for the baffle 232. A buffer spring 234 is fixedly connected between the end of the baffle 232 and the inner wall of the plate sleeve 231. The buffer spring 234 buffers the impact force when the fixing member 3 is inserted, protects the baffle 232 and the fixing member 3. A hole groove 233 is opened on the surface of the baffle 232. The hole groove 233 is arranged at the edge of the baffle 232, and the edge of the baffle 232 is provided with an inclined slope to facilitate the entry of the fixing member 3. When the fixing member 3 is inserted, the baffle 232 is squeezed and slides inside the plate sleeve 231, and the buffer spring 234 is compressed.
[0024] The clamping protection component 25 includes a sliding ring block 2501 and a fixed seat 2505. An annular groove 2502 is opened on the inner side surface of the sliding ring block 2501. A clamping spring 2503 is fixedly installed inside the annular groove 2502. The other end of the clamping spring 2503 is fixedly connected with a clamping bar 2504. The annular groove 2502 provides a space for the contraction and ejection of the clamping bar 2504.
[0025] A slider 2510 is fixedly connected to the side of the sliding ring block 2501. The slider 2510 is slidably installed inside the chute 24, and the side of the slider 2510 is connected to the end of the return spring 26.
[0026] A fixed seat 2505 is fixedly installed on the inner wall of the protective cover 22. A fixed rod 2506 is fixedly installed in the middle of the fixed seat 2505. A sliding ring 2507 is slidably connected to the outer surface of the fixed rod 2506. The cross-section of the sliding ring 2507 is triangular. A limiting spring 2512 is fixedly connected between the sliding ring 2507 and the fixed seat 2505.
[0027] One end of the fixed rod 2506 away from the fixed seat 2505 is fixedly connected to a chuck 2508. The chuck 2508 is in extrusion fit with the card strip 2504. An insulating pad 2509 is fixedly installed on the outer surface of the chuck 2508. When the sliding ring block 2501 approaches the chuck 2508, the card strip 2504 squeezes the outer curved surface of the chuck 2508. Under the contraction of the clamping spring 2503, the card strip 2504 enters the ring groove 2502 until the card strip 2504 is no longer restricted by the extrusion of the chuck 2508 and realizes reset. Under the elastic force of the return spring 26, the chuck 2508 and the card strip 2504 are locked. The sliding ring 2507 can release the lock between the chuck 2508 and the card strip 2504. When the coil needs to be replaced, push the coil to make the sliding ring block 2501 continue to slide. When the card strip 2504 squeezes the sliding ring 2507, the card strip 2504 enters the ring groove 2502. When the card strip 2504 is reset, pull out the coil. The card strip 2504 drives the sliding ring 2507 to slide. When the sliding ring 2507 is in extrusion fit with the inner curved surface of the chuck 2508, the card strip 2504 slides out of the chuck 2508 and contacts the insulating pad 2509 to realize power-off protection.
[0028] A fixing ring 2513 is fixedly connected to the surface of the sliding ring block 2501. One end of the fixing ring 2513 away from the sliding ring block 2501 is fixedly connected to a clamping ring 2514. A clamping groove 2515 is formed on the inner side surface of the clamping ring 2514. Second Embodiment. On the basis of the first embodiment, please refer to Figures 1 to 8 As shown, the fixing member 3 is detachably installed inside the replacement device 2. The fixing member 3 includes a conical ring sleeve 31. Heat dissipation holes 32 are formed on the outer surface of the conical ring sleeve 31. During the working process, the heat generated by the induction coil is conducted through the conical ring sleeve 31 and dissipated through the heat dissipation holes 32 to prevent the coil from overheating. A clamping ring groove 33 is formed at one end of the conical ring sleeve 31. The clamping ring groove 33 is in clamping fit with the clamping ring 2514.
[0029] An accommodation groove 36 is provided inside the snap - in ring groove 33. A snap - in spring 37 is fixedly installed inside the accommodation groove 36. The other end of the snap - in spring 37 is fixedly connected to a snap - in strip 38. The snap - in strip 38 is snap - fitted with the snap - in groove 2515. During assembly, the conical ring sleeve 31 is inserted into the hole groove 233, the baffle 232 contracts, and the snap - in ring 2514 is inserted into the snap - in ring groove 33. At this time, the snap - in strip 38 is squeezed by the snap - in ring 2514. Under the contraction of the snap - in spring 37, the snap - in strip 38 enters the accommodation groove 36. When the snap - in groove 2515 moves to the same position as the accommodation groove 36, the snap - in strip 38 enters the snap - in groove 2515 to achieve the snap - in of the conical ring sleeve 31.
[0030] A coil fixing sleeve 34 is fixedly installed on the inner side surface of the conical ring sleeve 31. A conductive sheet 35 is fixedly installed inside the conical ring sleeve 31. The conductive sheet 35 is in contact conduction with the induction coil to provide electrical energy for the induction coil. When the coil is inserted into the conical ring sleeve 31, the coil fixing sleeve 34 plays a fixing role for the coil, and the coil squeezes the conductive sheet 35.
[0031] During use, the operator inserts the induction coil into the conical ring sleeve 31 of the fixing member 3. The coil is fixed in position by the coil fixing sleeve 34 and at the same time squeezes the conductive sheet 35. Align the conical ring sleeve 31 with the induction coil with the hole groove 233 of the baffle 232 on the baffle assembly 23. Since the edge of the baffle 232 has an inclined slope, it is convenient for the conical ring sleeve 31 to be inserted. When inserting, the baffle 232 is squeezed and slides along the inside of the plate sleeve 231, and the buffer spring 234 is compressed; After the conical ring sleeve 31 is inserted, the snap - in ring 2514 is inserted into the snap - in ring groove 33. At this time, the snap - in strip 38 is squeezed by the snap - in ring 2514, compressing the snap - in spring 37 and entering the accommodation groove 36. As the snap - in ring 2514 continues to be inserted, when the snap - in groove 2515 moves to the same position as the accommodation groove 36, the snap - in strip 38 enters the snap - in groove 2515 under the action of the snap - in spring 37, realizing the snap - in of the fixing member 3 and the snap - in protection assembly 25; After the above - mentioned preliminary snap - in is completed, the sliding ring block 2501 approaches the chuck 2508 under the elastic force transmitted by the second return spring 26 through the slider 2510. The clamping strip 2504 squeezes the outer curved surface of the chuck 2508, causing the clamping spring 2503 to contract, and the clamping strip 2504 enters the ring groove 2502. Until the clamping strip 2504 is no longer restricted by the extrusion of the chuck 2508, it is reset under the action of the clamping spring 2503. At this time, the chuck 2508 is snap - locked with the clamping strip 2504, and the fixing member 3 is stably installed in the replacement device 2; The quenching machine tool 1 starts to work. The protective cover 22 prevents liquid from splashing into the interior during quenching and protects the internal structure. The baffle assembly 23 further blocks external liquid and impurities to ensure the stable operation of the device. The induction coil quenches the workpiece. During the working process, the heat generated by the induction coil is conducted through the conical ring sleeve 31 and dissipated through the heat dissipation holes 32 to prevent the coil from overheating; When the induction coil needs to be replaced, push the coil connected to the fixing member 3, so that the sliding ring block 2501 continues to slide. The clamping bar 2504 squeezes the slip ring 2507, the clamping spring 2503 contracts, and the clamping bar 2504 enters the ring groove 2502. At this time, the locking of the chuck 2508 and the clamping bar 2504 is released. Continue to pull the coil, and the clamping bar 2504 drives the slip ring 2507 to slide. When the slip ring 2507 is squeezed and adapted to the inner curved surface of the chuck 2508, the clamping bar 2504 slides out of the chuck 2508 and contacts the insulating pad 2509 to achieve power-off protection and prevent operators from getting an electric shock. Rotate the coil so that the clamping strip 38 squeezes the clamping ring 2514. Under the contraction of the clamping spring 37, the clamping strip 38 enters the receiving groove 36. Continue to pull out the coil until the fixing member 3 is separated from the replacement device 2. Repeat the steps of installing the fixing member 3 and the induction coil, and install the new induction coil and the fixing member 3 into the replacement device 2 to complete the replacement of the induction coil.
[0032] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A replacement device for the induction coil of a workpiece quenching machine tool, characterized in that Including: A replacement device (2) and a fixing member (3) detachably installed inside the replacement device (2); Among them, the replacement device (2) includes a fixing plate (21), a protective cover (22) is fixedly installed on the surface of the fixing plate (21), a baffle assembly (23) is installed at the edge of the inner wall of the protective cover (22), the baffle assembly (23) and the fixing plate (21) are oppositely arranged on both sides of the protective cover (22), sliding grooves (24) are opened on both sides of the inner wall of the protective cover (22), a return spring (26) is fixedly installed inside the sliding groove (24), a clamping and protecting assembly (25) is installed inside the protective cover (22), and the fixing member (3) is detachably installed at one end of the clamping and protecting assembly (25).
2. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 1, characterized in that: The baffle assembly (23) includes a plate sleeve (231), the plate sleeve (231) is fixedly installed on both sides of the inner wall of the protective cover (22), a baffle (232) is slidably installed inside the plate sleeve (231), a buffer spring (234) is fixedly connected between the end of the baffle (232) and the inner wall of the plate sleeve (231), and a hole groove (233) is opened on the surface of the baffle (232).
3. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 1, characterized in that: The clamping and protecting assembly (25) includes a sliding ring block (2501) and a fixing seat (2505), a ring groove (2502) is opened on the inner side surface of the sliding ring block (2501), a clamping spring (2503) is fixedly installed inside the ring groove (2502), and the other end of the clamping spring (2503) is fixedly connected with a clamping strip (2504).
4. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 3, characterized in that: A slider (2510) is fixedly connected to the side of the sliding ring block (2501), the slider (2510) is slidably installed inside the sliding groove (24), and the side surface of the slider (2510) is connected to the end of the return spring (26).
5. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 4, characterized in that: The fixing seat (2505) is fixedly installed on the inner wall of the protective cover (22), a fixing rod (2506) is fixedly installed in the middle of the fixing seat (2505), a sliding ring (2507) is slidably connected to the outer surface of the fixing rod (2506), and a limiting spring (2512) is fixedly connected between the sliding ring (2507) and the fixing seat (2505).
6. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 5, characterized in that: One end of the fixing rod (2506) far from the fixing seat (2505) is fixedly connected with a chuck (2508), the chuck (2508) is in pressing fit with the clamping strip (2504) and the sliding ring (2507), and an insulating pad (2509) is fixedly installed on the outer surface of the chuck (2508).
7. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 6, characterized in that: A fixing ring (2513) is fixedly connected to the surface of the sliding ring block (2501), a clamping ring (2514) is fixedly connected to one end of the fixing ring (2513) far from the sliding ring block (2501), and a clamping groove (2515) is opened on the inner side surface of the clamping ring (2514).
8. A replacement device for an induction coil of a workpiece quenching machine tool according to claim 7, characterized in that: The fixing member (3) includes a conical ring sleeve (31). Heat dissipation holes (32) are formed in the outer surface of the conical ring sleeve (31). A clamping ring groove (33) is formed at one end of the conical ring sleeve (31), and the clamping ring groove (33) is clamped and adapted to a clamping ring (2514).
9. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 8, characterized in that: A receiving groove (36) is formed inside the clamping ring groove (33). A clamping spring (37) is fixedly installed inside the receiving groove (36). The other end of the clamping spring (37) is fixedly connected to a clamping strip (38), and the clamping strip (38) is clamped and adapted to a clamping groove (2515).
10. The replacement device for the induction coil of a workpiece quenching machine tool according to claim 9, characterized in that: A coil fixing sleeve (34) is fixedly installed on the inner side surface of the conical ring sleeve (31), and a conductive sheet (35) is fixedly installed inside the conical ring sleeve (31).