Induction quenching equipment for bolt production and production method

Abstract

The invention discloses induction quenching equipment for bolt production and a production method, and relates to the technical field of induction quenching. The induction coil is fixedly connected to the rack; the rotary table is rotationally connected to the rack; a plurality of ejection mechanisms are arranged on the turntable; the material moving mechanism is arranged on the rack; the material frame is fixedly connected to the rack, and a plurality of bolts are arranged on the material frame; by arranging the rotating disc, the material ejecting mechanism, the material frame, the material pushing mechanism, the blocking mechanism and the material moving mechanism, the bolt can be pushed down from the material frame, the bolt is received by the material ejecting mechanism, the bolt is conveyed to be located below an induction coil, then the bolt is ejected, and a part of the bolt penetrates through the induction coil; the unquenched part of the bolt can penetrate through the induction coil through the material moving mechanism, and is conveyed to the quenching pool to complete blanking, so that poor heating and quenching effects and possible influence on efficiency are avoided, and automatic loading and unloading are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of induction hardening, and specifically to an induction hardening device and a production method for bolt production. Background Art

[0002] Induction hardening is a heat treatment process that heats a workpiece by generating eddy currents inside the workpiece through electromagnetic induction. Its core principle is electromagnetic induction: when an alternating current passes through an induction coil, an alternating magnetic field is generated around it, and a metal workpiece placed in the magnetic field will generate eddy currents due to electromagnetic induction. Since the metal itself has resistance, the eddy currents convert electrical energy into heat energy during the flow process, quickly raising the temperature of the workpiece to the temperature range required for hardening, and then quenching the heated workpiece by rapid cooling. For example, the patent with the publication number: CN118268446B, the publication date: August 9, 2024, and the name: "An Integrated Device for Stamping, Hardening, and Cooling of High-Strength Bolts". This integrated device for stamping, hardening, and cooling of high-strength bolts includes a workbench, and a quenching tank is provided at the bottom of the workbench, and a stirring mechanism is fixedly connected inside the quenching tank. In this integrated device for stamping, hardening, and cooling of high-strength bolts, through the setting of the stirring mechanism, the motor two drives the rotating shaft two to rotate, the rotating shaft two drives the gear ring one to rotate, the gear ring one drives the gear one to rotate on the fixed rod one, the gear one drives the gear two to rotate on the fixed rod two, the gear two drives the gear ring two to rotate, and the gear ring two drives the stirring blade one to rotate through the rotating shaft one. At the same time, the motor two drives the rotating shaft two to rotate, and the rotating shaft two drives the stirring blade two to rotate. In this way, the coolant can be fully stirred to avoid the uneven heating of the processed workpiece, which leads to a deterioration of the hardening effect, and the work quality and work efficiency are weakened.

[0003] In the prior art such as the above-mentioned patent, when performing bolt hardening operations, a clamping mechanism usually clamps the bolt and moves it vertically upward, so that the bolt moves from the bottom of the induction coil to inside the induction coil. At the same time, there are multiple water spray holes arranged around the induction coil to cool and harden the bolt while heating it; however, the problems are as follows: 1. Since the end of the bolt is clamped and blocked by the clamping mechanism, the heating effect of the bolt end is not good, and under the blocking effect, the sprayed water cannot pass through the clamping mechanism to cool the bolt end; at the same time, when the bolt is lifted in this way, the upper end of the screw rod will be heated first. As the water spray quenching is carried out, the sprayed water will also flow down along the bolt, so when heating the lower part of the next bolt, the heating efficiency will be affected to a certain extent; 2. During the bolt induction hardening operation, it is usually manually loaded and unloaded. The bolt is placed on the clamping mechanism and removed from the clamping mechanism after the induction hardening is completed, resulting in a reduction in the hardening efficiency. Summary of the Invention

[0004] The object of the present invention is to provide an induction hardening device and a production method for bolt production to solve the deficiencies in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: An induction hardening device for bolt production, comprising: A frame on which a quenching pool is provided; An induction coil fixedly connected to the frame; A turntable rotatably connected to the frame; a plurality of blanking mechanisms are provided on the turntable; A material transfer mechanism provided on the frame; A material rack fixedly connected to the frame, and a plurality of bolts are provided on the material rack; During the rotation stroke of the turntable, there are respectively a conveying stroke, a blanking stroke, and a material transfer stroke; In the conveying stroke: the blanking mechanism drives the bolt at the outermost end of the material rack to move synchronously downward below the induction coil; In the blanking stroke: the blanking mechanism and the bolt thereon are located below the induction coil. At this time, the blanking mechanism and the turntable move relative to each other, driving the blanking mechanism to lift the bolt thereon, so that the bolt moves vertically upward from below the induction coil and is located inside the induction coil; In the material transfer stroke: after the blanking mechanism lifts the bolt thereon to the highest position, the material transfer mechanism supports the end of the bolt and drives the bolt to move upward synchronously, so that the bolt completely passes through the induction coil. Subsequently, the material transfer mechanism drives the bolt to rotate, and during the rotation, the bolt falls into the quenching pool.

[0006] Furthermore, the blanking mechanism includes a rotating member rotatably and slidably connected to the turntable. An inclined groove is provided on the rotating member. A gear is fixedly connected to the rotating member. A rack meshing with the gear is fixedly connected to the turntable. A blanking member is slidably connected to the turntable. An abutting rod is fixedly connected to the blanking member, and the abutting rod is slidably connected in the inclined groove.

[0007] Furthermore, the bottom of the blanking member is fixedly connected with a telescopic rod. A slider is fixedly connected to the telescopic rod. A sliding groove for the slider to slide is provided on the turntable. A first spring is provided between the slider and the inner wall of the sliding groove.

[0008] Furthermore, the material transfer mechanism includes a column fixedly connected to the frame. A material transfer groove is provided on the column. A collar is sleeved on the column. A material transfer plate is fixedly connected to the collar. One end of the material transfer plate abuts against the bolt, and the other end penetrates through the collar and slidably abuts against the material transfer groove. A driving ring is rotatably connected to the column. Two grooves are provided on the driving ring. The material transfer plate is respectively slidably abutted and matched with the two grooves. A blanking plate is fixedly connected in the quenching pool, and the blanking plate abuts against the bolt.

[0009] Furthermore, the material transfer chute is composed of a first rotating section, a rising section, a second rotating section, and a descending section connected in series.

[0010] Furthermore, it further includes a blocking mechanism, which includes two sliding plates slidably connected to the frame. A reciprocating rod is fixedly connected to each sliding plate. A reciprocating groove is formed on the turntable. The two reciprocating rods are both slidably abutted and matched with the reciprocating groove. A second blocking rod is fixedly connected to each of the two sliding plates. The two second blocking rods are respectively rotatably abutted against the side walls of the two rotating members.

[0011] Furthermore, the reciprocating groove is composed of a plurality of blind grooves connected in series. Each blind groove includes a holding groove, a reset groove, and a material pushing groove.

[0012] Furthermore, the material rack includes a first fixing plate and a second fixing plate fixedly connected to the frame. A conveying channel, a material pushing through groove, and a separating channel that communicate with each other are provided between the first fixing plate and the second fixing plate.

[0013] Furthermore, it further includes a material pushing mechanism, which includes a fixed box fixedly connected to one of the sliding plates. A material pushing plate is slidably connected in the fixed box. A second spring is provided between the material pushing plate and the inner wall of the fixed box.

[0014] A production method, which uses the induction hardening equipment for bolt production as described above for hardening, includes the following steps: S1: Through the conveying mechanism, each bolt is conveyed into the conveying channel. Due to the abutting action between the bolts, the outermost bolt is located in the material pushing through groove. S2: Drive the turntable to rotate. On the one hand, the turntable drives the material pushing mechanism to push the bolt located in the material pushing through groove into the separating channel. On the other hand, the turntable drives each blanking mechanism to rotate synchronously. When one of the blanking mechanisms is located below the bolt, the blocking mechanism limits the blanking mechanism, so that the blanking mechanism moves relative to the turntable. Subsequently, the blanking mechanism jacks up the bolt. After jacking up, the bolt slides out of the material rack through the separating channel. Subsequently, the blanking mechanism resets on the turntable. During the resetting process, the height of the bolt is passively lowered, so that the bolt rotates synchronously with the turntable. S3: As the turntable continues to rotate, when the bolt is positioned below the induction coil, at this time, the blocking mechanism blocks the ejector mechanism again, keeping the bolt always in the position below the induction coil. Moreover, it drives the ejector mechanism to jack the bolt vertically upward again, causing a part of the bolt to pass through the induction coil. At this time, the driving ring is rotated, causing the transfer plate to first rotate about the axis of the driving ring. After rotation, one end of the transfer plate abuts against the top of the bolt to support the bolt. Subsequently, the transfer plate drives the bolt to move vertically upward, enabling the other unquenched part of the bolt to completely pass through the induction coil. After the bolt passes through the induction coil, it drives the bolt to rotate again, rotates the bolt above the quenching pool, and during the rotation process, through the abutment of the blanking plate and the bolt, the bolt falls into the quenching pool for quenching. S4: As the driving ring continues to rotate, it drives the transfer plate to first descend vertically and then rotate to the initial position to prepare for the next material transfer. After the transfer plate is in the initial position, the driving of the driving ring is released. S5: According to the above method, the quenching operation is repeated.

[0015] In the above technical solution, an induction quenching device and production method for bolt production provided by the present invention, by setting a turntable, an ejector mechanism, a material rack, a pusher mechanism, a blocking mechanism, and a transfer mechanism, can respectively complete pushing the bolt off the material rack, catching the bolt by the ejector mechanism, conveying the bolt to be below the induction coil, then jacking up the bolt to make a part of the bolt pass through the induction coil, and through the transfer mechanism, the unquenched part of the bolt can pass through the induction coil and be conveyed to the position of the quenching pool to complete blanking, avoiding poor heating and quenching effects, possible influence on efficiency, and realizing automatic loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the turntable, ejector mechanism, and blocking mechanism provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the specific structure of the ejector mechanism provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the perspective view of the bottom of the turntable and the structure of the blocking mechanism provided by an embodiment of the present invention; Figure 5Schematic structural diagram of the blocking mechanism and the material pushing mechanism provided by the embodiment of the present invention; Figure 6 Schematic overall structural diagram of the material transfer mechanism provided by the embodiment of the present invention; Figure 7 Schematic separation structural diagram of the material transfer mechanism provided by the embodiment of the present invention; Figure 8 Schematic structural diagram of the column and the material transfer groove provided by the embodiment of the present invention; Figure 9 Schematic structural diagram of the driving ring and the groove provided by the embodiment of the present invention; Figure 10 Schematic structural diagram of the material rack provided by the embodiment of the present invention.

[0018] Explanation of reference numerals: 1, frame; 11, quenching pool; 2, induction coil; 3, turntable; 31, chute; 32, reciprocating groove; 321, holding groove; 322, reset groove; 323, material pushing groove; 4, ejecting mechanism; 41, rotating member; 42, inclined groove; 43, gear; 44, rack; 45, ejecting member; 46, abutting rod; 47, telescopic rod; 48, slider; 49, first spring; 5, material transfer mechanism; 51, column; 511, material transfer groove; 5111, first rotating section; 5112, rising section; 5113, second rotating section; 5114, descending section; 52, collar; 53, material transfer plate; 54, driving ring; 541, groove; 55, blanking plate; 6, blocking mechanism; 61, sliding plate; 62, reciprocating rod; 63, second blocking rod; 7, material rack; 71, first fixing plate; 72, second fixing plate; 73, conveying channel; 74, material pushing through groove; 75, separating channel; 8, material pushing mechanism; 81, fixed box; 82, material pushing plate; 83, second spring. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0020] Please refer to Figure 1-10 , an induction hardening device for bolt production provided by an embodiment of the present invention includes: a frame 1 on which a quenching pool 11 is opened; an induction coil 2 fixedly connected to the frame 1; the induction coil 2 is a prior art, and heating effect can be achieved by energizing the induction coil 2, which will not be elaborated here; a turntable 3 rotatably connected to the frame 1; and a plurality of ejecting mechanisms 4 are arranged on the turntable 3.

[0021] Specifically, the blanking mechanism 4 includes a rotating member 41 that is rotatably and slidably connected to the turntable 3. An inclined groove 42 is formed on the rotating member 41. A gear 43 is fixedly connected to the rotating member 41. A rack 44 that meshes with the gear 43 is fixedly connected to the turntable 3. A blanking member 45 is slidably connected to the turntable 3. Here, the so-called slidable connection means that the blanking member 45 can slide along the chute 31 and can also slide vertically on the turntable 3 under the telescopic action of the telescopic rod 47. A contact rod 46 is fixedly connected to the blanking member 45, and the contact rod 46 is slidably connected in the inclined groove 42.

[0022] More specifically, the specific slidable connection method of the blanking member 45 is as follows: A telescopic rod 47 is fixedly connected to the bottom of the blanking member 45. A slider 48 is fixedly connected to the telescopic rod 47. A chute 31 for the slider 48 to slide is formed on the turntable 3. The chute 31 is arc-shaped, and the central axis of the chute 31 is coaxial with the axis of the turntable 3, that is, the chute 31 is rotationally formed with the axis of the turntable 3 as the center. A first spring 49 is provided between the slider 48 and the inner wall of the chute 31. The first spring 49 is a tension spring.

[0023] Preferably, as Figure 1 、 2 、shown in Figure 3, a circular groove is formed on the top of the blanking member 45. The diameter of the circular groove is larger than the diameter of the bolt. So that when the blanking member 45 rises vertically, the bolt can be located in the circular groove, that is, the inner bottom surface of the circular groove abuts against the bottom of the bolt. At the same time, due to the height of the circular groove, the bolt can be driven to move synchronously.

[0024] The material transfer mechanism 5 is arranged on the frame 1.

[0025] Specifically, the material transfer mechanism 5 includes a column 51 fixedly connected to the frame 1. A material transfer groove 511 is formed on the column 51. A collar 52 is sleeved on the column 51. A material transfer plate 53 is fixedly connected to the collar 52. One end of the material transfer plate 53 abuts against the bolt in a mating manner, and this end is semi-circular. The other end penetrates through the collar 52 and slidably abuts against the material transfer groove 511. A driving ring 54 is rotatably connected to the column 51. Two grooves 541 are formed on the driving ring 54. The material transfer plate 53 is respectively slidably abutted against the two grooves 541 in a mating manner. A blanking plate 55 is fixedly connected in the quenching pool 11. The blanking plate 55 abuts against the bolt in a mating manner.

[0026] More specifically, the material transfer groove 511 is composed of a first rotating section 5111, a rising section 5112, a second rotating section 5113, and a descending section 5114 connected in series.

[0027] It further includes a blocking mechanism 6, which includes two sliding plates 61 slidably connected to the frame 1. A reciprocating rod 62 is fixedly connected to each of the sliding plates 61. A reciprocating groove 32 is formed on the turntable 3. The two reciprocating rods 62 are both in sliding contact and cooperation with the reciprocating groove 32. A second blocking rod 63 is fixedly connected to each of the two sliding plates 61. The two second blocking rods 63 are respectively in rotational contact with the side walls of the two rotating members 41.

[0028] Among them, as Figure 2 , 5 shown, the second blocking rod 63 located below the material rack 7 is vertically fixed, while the other second blocking rod 63 located at the position of the induction coil 2 is horizontally fixed. It is hereby specifically stated; in addition, the two second blocking rods 63 can also be both vertically arranged or horizontally arranged, as long as the two second blocking rods 63 can be in rotational contact with the side walls of the rotating member 41 to limit the position of the rotating member 41.

[0029] Specifically, the reciprocating groove 32 is composed of a plurality of blind grooves communicating with each other. Each blind groove includes a holding groove 321, a reset groove 322, and a material pushing groove 323.

[0030] The material rack 7 is fixedly connected to the frame 1. A plurality of bolts are arranged on the material rack 7; the material rack 7 includes a first fixing plate 71 and a second fixing plate 72 fixedly connected to the frame 1. There are a conveying channel 73, a material pushing through groove 74, and a separating channel 75 that communicate with each other between the first fixing plate 71 and the second fixing plate 72; among them, the separating channel 75 has a certain arc, and the axis of the arc is coaxial with the axis of the turntable 3.

[0031] It can be understood that: the bolts are conveyed into the conveying channel 73 through the prior art. The prior art can be structures such as a conveyor belt, etc., and will not be elaborated here; in addition, the position of the conveying channel 73 of the first fixing plate 71 and the second fixing plate 72 can be set to be inclined. When the bolts are conveyed into the conveying channel 73, due to the gravity of the bolts themselves, they slide obliquely downward from the conveying channel 73 and enter the material pushing through groove 74.

[0032] It further includes a material pushing mechanism 8, which includes a fixed box 81 fixedly connected to one of the sliding plates 61. A material pushing plate 82 is slidably connected in the fixed box 81. A second spring 83 is arranged between the material pushing plate 82 and the inner wall of the fixed box 81.

[0033] Preferably, as Figure 5 shown, the side of the material pushing plate 82 close to the conveying channel 73 is provided with an inclined surface. The purpose is that when the blocking mechanism 6 releases the limit on the side wall of the rotating member 41, the fixed box 81 and the material pushing plate 82 can retract and reset synchronously with the second blocking rod 63. During the reset process, the material pushing plate 82 will abut against one of the bolts at the outermost end in the conveying channel 73 (that is, as Figure 10As shown, a bolt at the intersection of the conveying channel 73 and the pushing material through slot 74 abuts. To avoid interference between the pushing plate 82 and this bolt, the pushing plate 82 is set to be slidably retractable into the fixed box 81 to achieve the avoidance effect.

[0034] During the rotation stroke of the turntable 3, it respectively has a conveying stroke, a blanking stroke, and a material transfer stroke; During the conveying stroke: the blanking mechanism 4 drives the bolt at the outermost end of the material rack 7 to move synchronously downward below the induction coil 2; During the blanking stroke: the blanking mechanism 4 and the bolt thereon are located below the induction coil 2. At this time, the blanking mechanism 4 and the turntable 3 move relative to each other, driving the blanking mechanism 4 to lift the bolt thereon, causing the bolt to move vertically upward from below the induction coil 2 and be located inside the induction coil 2; During the material transfer stroke: after the blanking mechanism 4 lifts the bolt thereon to the highest position, the material transfer mechanism 5 supports the end of the bolt and drives the bolt to move upward synchronously, enabling the bolt to completely pass through the induction coil 2. Subsequently, the material transfer mechanism 5 drives the bolt to rotate, and during the rotation process, the bolt falls into the quenching pool 11.

[0035] A production method, which uses the induction quenching equipment for bolt production as described above for quenching, includes the following steps: S1: Through the conveying mechanism, each bolt is conveyed into the conveying channel 73, and due to the abutting effect between the bolts, the outermost bolt is located in the pushing material through slot 74; S2: Drive the turntable 3 to rotate. On the one hand, the turntable 3 drives the pushing mechanism 8 to push the bolt located in the pushing material through slot 74 out of the channel 75. On the other hand, the turntable 3 drives each blanking mechanism 4 to rotate synchronously. When one of the blanking mechanisms 4 is located below the bolt, the blocking mechanism 6 limits the blanking mechanism 4, causing the blanking mechanism 4 to move relative to the turntable 3. Subsequently, the blanking mechanism 4 lifts the bolt, and after lifting, slides the bolt out of the material rack 7 through the separation channel 75. Then, the blanking mechanism 4 returns to its position on the turntable 3, and during the resetting process, passively drives the height of the bolt to decrease, causing the bolt to rotate synchronously with the turntable 3; S3: As the turntable 3 continues to rotate, when the bolt is located below the induction coil 2, at this time, the blocking mechanism 6 blocks the ejector mechanism 4 again, so that the bolt always remains below the induction coil 2. Moreover, the ejector mechanism 4 is driven to jack the bolt vertically upward again, so that a part of the bolt passes through the induction coil 2. At this time, the driving ring 54 is rotated, so that the material shifting plate 53 first rotates around the axis of the driving ring 54. After rotation, one end of the material shifting plate 53 abuts against the top of the bolt to support the bolt. Subsequently, the material shifting plate 53 drives the bolt to move vertically upward, so that the other unquenched part of the bolt completely passes through the induction coil 2. After the bolt passes through the induction coil 2, the bolt is driven to rotate again, and the bolt is rotated above the quenching pool 11. During the rotation process, the bolt falls into the quenching pool 11 for quenching through the abutment between the blanking plate 55 and the bolt. S4: As the driving ring 54 continues to rotate, it drives the material shifting plate 53 to first descend vertically and then rotate to the initial position to prepare for the next material transfer. After the material shifting plate 53 is in the initial position, the driving of the driving ring 54 is released. S5: Quenching operations are repeated according to the above method.

[0036] The working principle is as follows: As shown in Figure 4 、 Figure 1 , at this time, when the turntable 3 rotates, one of the reciprocating rods 62 slides in the holding groove 321, so that the corresponding second stop rod 63 makes a limiting abutment against the side wall of the rotating member 41. As the turntable 3 continues to rotate, since the rotating member 41 cannot continue to rotate with the turntable 3 under the blocking effect, the slider 48 slides in the chute 31, driving the first spring 49 to elastically deform and stretch, so that the rotating member 41 and the turntable 3 have relative movement. As the turntable 3 continues to rotate, the rack 44 meshes with the gear 43, causing the rotating member 41 to rotate. Through the cooperation of the abutting rod 46 and the inclined groove 42, the ejector member 45 is driven to rise vertically, so that the length of the telescopic rod 47 extends. As the ejector member 45 rises, the bottom of the bolt on the material rack 7 can be supported through the circular groove formed at the top of the ejector member 45, so that the bolt is located in the circular groove of the ejector member 45, and at the same time, the bolt is limited by the height of the circular groove.

[0037] As the turntable 3 continues to rotate, the reciprocating rod 62 slides in the reset groove 322, driving the second gear lever 63 to move horizontally, thereby releasing the limit on the rotating member 41. Under the elastic force of the first spring 49 restoring its elastic deformation, the slider 48 slides reversely in the chute 31, driving the entire ejecting mechanism 4 to reset. During the reset process, since it takes a certain amount of time for the ejecting member 45 to descend to the initial position, and the circular groove of the ejecting member 45 limits and supports the bolt, the bolt can be driven to slide out of the separation channel 75 of the material rack 7 and separate from the material rack 7, so that the bolt rotates synchronously with the turntable 3, and the turntable 3 conveys the bolt close to the position where the induction coil 2 is located.

[0038] Immediately following the above, the turntable 3 continues to rotate. On the one hand: At this time, the reciprocating rod 62 slides in the pushing groove 323, driving both second gear levers 63 to extend out, preparing to block and limit the rotating member 41 again. At the same time, one of the second gear levers 63 drives the pushing plate 82 to push out. Under the thrust of the pushing plate 82, a bolt located at the intersection of the conveying channel 73 and the pushing through groove 74 at this time is pushed to the end of the pushing through groove 74, that is, the intersection of the pushing through groove 74 and the separation channel 75.

[0039] At the same time, on the other hand, a bolt first removed from the material rack 7 is already below the induction coil 2 as the turntable 3 rotates. As described above, at this time, the other second gear lever 63 also acts on the rotating member 41 located below the induction coil 2. As the turntable 3 continues to rotate, for the same principle as above, the ejecting member 45 is driven to rise vertically, thereby driving a part of the bolt to pass through the induction coil 2 from the bottom of the induction coil 2 to complete partial quenching.

[0040] Then, make the drive ring 54 as Figure 6The first rotation section 5111 is a first rotation section 5121 of the first rotation section 5112, and the second rotation section 5122 is a first rotation section 5123 of the first rotation section 5112. The first rotation section 5111 is a first rotation section 5123 of the first rotation section 5112, and the second rotation section 5124 is a first rotation section 5123 of the first rotation section 5112. It rises and moves to the junction with the second rotating section 5113. It can be understood that this rise is to allow the unquenched part of the bolt to pass through the induction coil 2, thereby completing the quenching; since the highest point of the slope of the driving ring 54 is higher than the highest point of the rising section 5112, continuing to rotate the driving ring 54 at this time will push the material moving plate 53 to move in the second rotating section 5113 and move to the descending section 5114, thereby realizing the second rotation of the material moving plate 53. This rotation rotates the bolt toward the quenching pool 11, and in the process of rotation, due to the pushing of the bolt by the unloading plate 55, the bolt is pushed down and falls into the quenching pool 11 to complete the quenching.

[0041] like Figure 7 As shown, at this time, the rod body of the material moving plate 53 is located in the descending section 5114 and is flush with the second rotating section 5113, and the driving ring 54 continues to rotate, which will cause the rod body of the material moving plate 53 to rise vertically in the descending section 5114 and abut against the top inner wall of the descending section 5114. At this time, the rod body of the material moving plate 53 is located at the highest point of the slope of the driving ring 54. As the driving ring 54 continues to rotate, the rod body of the material moving plate 53 gradually descends from the highest point of the slope of the driving ring 54, falls in the descending section 5114, and is located at the junction of the descending section 5114 and the first rotating section 5111, returning to the initial position.

[0042] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An induction hardening device for bolt production, characterized in that, Comprising: A frame (1) with a quenching pool (11) formed thereon; An induction coil (2) fixedly connected to the frame (1); A turntable (3) rotatably connected to the frame (1); a plurality of blanking mechanisms (4) are provided on the turntable (3); A material transfer mechanism (5) provided on the frame (1); A material rack (7) fixedly connected to the frame (1), and a plurality of bolts are provided on the material rack (7); During the rotation stroke of the turntable (3), there are respectively a conveying stroke, a blanking stroke, and a material transfer stroke; During the conveying stroke: The blanking mechanism (4) drives the bolt at the outermost end of the material rack (7) to move synchronously downward below the induction coil (2); During the blanking stroke: The blanking mechanism (4) and the bolt thereon are located below the induction coil (2). At this time, the blanking mechanism (4) and the turntable (3) move relative to each other, driving the blanking mechanism (4) to lift the bolt thereon, causing the bolt to move vertically upward from below the induction coil (2) and be located inside the induction coil (2); During the material transfer stroke: After the blanking mechanism (4) lifts the bolt thereon to the highest position, the material transfer mechanism (5) supports the end of the bolt and drives the bolt to move upward synchronously, causing the bolt to completely pass through the induction coil (2). Subsequently, the material transfer mechanism (5) drives the bolt to rotate, and during the rotation process, the bolt falls into the quenching pool (11).

2. The induction hardening equipment for bolt production according to claim 1, characterized in that, The blanking mechanism (4) includes a rotating member (41) rotatably and slidably connected to the turntable (3). An inclined groove (42) is formed on the rotating member (41). A gear (43) is fixedly connected to the rotating member (41). A rack (44) meshing with the gear (43) is fixedly connected to the turntable (3). A blanking member (45) is slidably connected to the turntable (3). An abutting rod (46) is fixedly connected to the blanking member (45). The abutting rod (46) is slidably connected in the inclined groove (42).

3. The induction hardening equipment for bolt production according to claim 2, characterized in that, A telescopic rod (47) is fixedly connected to the bottom of the blanking member (45). A slider (48) is fixedly connected to the telescopic rod (47). A sliding groove (31) for the slider (48) to slide is formed on the turntable (3). A first spring (49) is provided between the slider (48) and the inner wall of the sliding groove (31).

4. The induction hardening equipment for bolt production according to claim 1, characterized in that, The material transfer mechanism (5) includes a column (51) fixedly connected to the frame (1). A material transfer groove (511) is formed on the column (51). A collar (52) is sleeved on the column (51). A material transfer plate (53) is fixedly connected to the collar (52). One end of the material transfer plate (53) abuts against the bolt in a mating manner, and the other end penetrates through the collar (52) and slidably abuts against the material transfer groove (511). A driving ring (54) is rotatably connected to the column (51). Two grooves (541) are formed on the driving ring (54). The material transfer plate (53) slidably abuts against the two grooves (541) in a mating manner. A blanking plate (55) is fixedly connected in the quenching pool (11). The blanking plate (55) abuts against the bolt in a mating manner.

5. An induction hardening device for bolt production according to claim 4, characterized in that, The material transfer groove (511) is formed by connecting a first rotating section (5111), a rising section (5112), a second rotating section (5113), and a descending section (5114).

6. The induction hardening equipment for bolt production according to claim 2, characterized in that, It further includes a blocking mechanism (6), which includes two sliding plates (61) slidably connected to the frame (1). A reciprocating rod (62) is fixedly connected to each of the sliding plates (61). A reciprocating groove (32) is formed on the turntable (3). The two reciprocating rods (62) are both in sliding abutting fit with the reciprocating groove (32). A second stop rod (63) is fixedly connected to each of the two sliding plates (61). The two second stop rods (63) are respectively in rotational abutting connection with the side walls of the two rotating members (41).

7. An induction hardening device for bolt production according to claim 6, characterized in that, The reciprocating groove (32) is composed of a plurality of blind grooves communicating with each other. Each blind groove includes a holding groove (321), a reset groove (322), and a pushing groove (323).

8. An induction hardening device for bolt production according to claim 1, characterized in that, The material rack (7) includes a first fixing plate (71) and a second fixing plate (72) fixedly connected to the frame (1). A conveying channel (73), a pushing channel (74), and a separating channel (75) that communicate with each other are provided between the first fixing plate (71) and the second fixing plate (72).

9. The induction hardening equipment for bolt production according to claim 6, characterized in that, It further includes a pushing mechanism (8), which includes a fixed box (81) fixedly connected to one of the sliding plates (61). A pushing plate (82) is slidably connected in the fixed box (81). A second spring (83) is provided between the pushing plate (82) and the inner wall of the fixed box (81).

10. A production method, characterized in that the production method uses the induction hardening equipment for bolt production as described in claims 1-9 for hardening. It includes the following steps: S1: Through the conveying mechanism, each bolt is conveyed into the conveying channel (73). Due to the abutting action between the bolts, the outermost bolt is located in the pushing channel (74). S2: Drive the turntable (3) to rotate. On the one hand, the turntable (3) drives the pushing mechanism (8) to push the bolt located in the pushing channel (74) into the separating channel (75). On the other hand, the turntable (3) drives each ejecting mechanism (4) to rotate synchronously. When one of the ejecting mechanisms (4) is located below the bolt, the blocking mechanism (6) limits the ejecting mechanism (4) so that the ejecting mechanism (4) moves relative to the turntable (3). Subsequently, the ejecting mechanism (4) jacks up the bolt. After jacking up, the bolt slides out of the material rack (7) through the separating channel (75). Subsequently, the ejecting mechanism (4) resets on the turntable (3). During the resetting process, the height of the bolt is passively decreased, so that the bolt rotates synchronously with the turntable (3). S3: As the turntable (3) continues to rotate, when the bolt is below the induction coil (2), at this time, the blocking mechanism (6) blocks the ejector mechanism (4) again, keeping the bolt always below the induction coil (2). Moreover, it drives the ejector mechanism (4) to jack the bolt vertically upward again, so that a part of the bolt passes through the induction coil (2). At this time, drive the driving ring (54) to rotate, so that the material moving plate (53) first rotates around the axis of the driving ring (54). After rotation, one end of the material moving plate (53) abuts against the top of the bolt to support the bolt. Subsequently, the material moving plate (53) drives the bolt to move vertically upward, so that the other unquenched part of the bolt completely passes through the induction coil (2). When the bolt passes through the induction coil (2), drive the bolt to rotate again, rotate the bolt above the quenching pool (11), and during the rotation process, make the bolt fall into the quenching pool (11) for quenching through the abutment of the blanking plate (55) and the bolt; S4: As the driving ring (54) continues to rotate, drive the material moving plate (53) to first descend vertically and then rotate to the initial position to prepare for the next material transfer. When the material moving plate (53) is in the initial position, release the drive of the driving ring (54); S5: Carry out the quenching operation repeatedly according to the above method.

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