Heat treatment equipment and process for double-end bolt

Abstract

The invention relates to heat treatment equipment and technology for studs, and belongs to the technical field of bolt heat treatment, the heat treatment equipment comprises a stock bin, a material taking module, a clamping module and a heating module, the stock bin is used for containing the studs, and the material taking module is used for taking out the studs from the stock bin and then putting the studs into the clamping module; the clamping module puts the end part of the stud into the heating module for heating; the heating module heats the threaded part of the stud in a high-frequency induction heating mode so as to achieve a quenching heat treatment mode. The quenching effect of the stud end threads can be achieved in a full-automatic mode, the precision and speed of feeding and positioning are remarkably improved through the structure, manual intervention is reduced, and the quenching device is suitable for batch production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bolt heat treatment, in particular to a heat treatment equipment and process for double-end bolts. BACKGROUND

[0002] The threaded part is a key stress part of the bolt and needs to have high hardness and wear resistance. The gradient structure of "surface hardness and core toughness" can be achieved through induction quenching (such as ultra-high frequency quenching), which meets the requirements of anti-slip and anti-wear and maintains the core toughness to prevent breakage.

[0003] In the existing heat treatment of double-end bolts, the threaded part usually needs to be quenched. In order to reduce production costs, the threaded part of the double-end bolt is usually inserted into a heating structure for quenching by manual operation. Although this method avoids the use of complex fully automated mechanical devices to reduce production costs, in mass production of double-end bolts, manual operation not only limits the heat treatment efficiency of the double-end bolt, but also causes inconsistent heat treatment effects, thereby causing unstable quality of the double-end bolt.

[0004] Therefore, there is an urgent need for a heat treatment equipment. SUMMARY

[0005] In order to solve the problem of low heat treatment efficiency and unstable quality of the threaded part of the double-end bolt after heat treatment due to the involvement of more manual operations in the heat treatment process of mass double-end bolts, the present application provides a heat treatment equipment and process for double-end bolts.

[0006] In a first aspect, the present application provides a heat treatment equipment for double-end bolts, which adopts the following technical scheme: A heat treatment equipment for double-end bolts, comprising: a hopper containing a plurality of double-end bolts, the plurality of double-end bolts being divided into multiple groups, the double-end bolts in each group being arranged side by side, and the axis of the double-end bolts being perpendicular to the ground; The taking module comprises a taking support, a first taking drive, a taking bottom plate, a second taking drive, a taking guide plate, a taking connecting rod, an electromagnet and a taking camera. The taking support is arranged on the ground. The first taking drive is arranged on the taking support. The taking bottom plate is arranged on the driving end of the first taking drive. The taking bottom plate moves along the X direction and the Z direction by means of the first taking drive. The second taking drive is arranged on the bottom plate. The taking guide plate is slidingly arranged on the taking bottom plate. The driving end of the second taking drive is connected to the taking guide plate. The taking guide plate moves along the Z direction by means of the second taking drive. The taking guide plate is provided with a plurality of taking guide holes. The top end of the taking connecting rod is slidingly arranged on the taking bottom plate. The middle part of the taking connecting rod is slidingly arranged in the taking guide hole. The taking connecting rod moves along the Y direction and the Z direction synchronously by means of the cooperation of the taking guide plate and the taking bottom plate. The electromagnet is arranged at the bottom end of the taking connecting rod. The taking camera is arranged on the bottom plate and the shooting end faces the ground. The taking connecting rod, the taking guide hole and the electromagnet are a plurality of and correspondingly arranged. The number of the taking connecting rods is the same as the number of each group of double-headed bolts and is correspondingly arranged. The clamping module comprises a clamping support, a clamping rotating piece, a clamping plate and a clamping drive. The clamping support is slidingly arranged on the ground. The clamping rotating piece is arranged on the clamping support. The end of the clamping plate is connected to the output end of the clamping rotating piece. The clamping plate is provided with a plurality of clamping holes. The plurality of clamping holes are divided into a plurality of groups. The number of each group of clamping holes is the same as the number of each group of double-headed bolts. When the double-headed bolt is arranged in the clamping hole, the threaded part of the double-headed bolt is located outside the clamping hole. The drive is arranged on the ground and the output end is connected to the clamping support. The heating module comprises a plurality of heating coils. The plurality of heating coils are divided into a plurality of groups. The number of each group of heating coils is the same as the number of each group of double-headed bolts. The threaded part of the double-headed bolt arranged in the clamping hole is arranged in the heating coil to complete the quenching treatment.

[0007] By adopting the above technical scheme, when the taking link takes away the stud from the bin, the distance between the taking links is reduced under the action of the second driving member, until the electromagnet respectively contacts the corresponding stud. In order to avoid the interference between the heating coils due to the relatively large distance, the studs in the bin need to be spaced apart by a certain distance, and the distance between any adjacent studs on the clamping plate can be the same through the taking module. Therefore, the utilization rate of the clamping plate can be improved, the stability of the heating coil can be ensured, the space occupied by the entire device can be reduced, and the heat generated by the heating coil can be prevented from being wasted excessively. In addition, the taking camera in the taking module can accurately identify the positions of the studs in the bin and on the clamping plate, significantly improve the overall automation degree of the device, reduce the labor cost and the number of labor personnel, and improve the efficiency of the stud thread quenching.

[0008] Optionally, the number of the clamping holes is the same as and one-to-one corresponds to the number of the heating coils.

[0009] By adopting the above technical scheme, in order to maximize the utilization rate of the heating coil, the number of the clamping holes on the clamping plate and the number of the heating coils are set in the same form and in a one-to-one corresponding form.

[0010] Optionally, the taking guide hole is divided into a vertical hole and an inclined hole, the inclined hole is symmetrically arranged on both sides of the vertical hole, the vertical hole and the inclined hole are both long holes, the acute angle between the axis of the inclined hole and the horizontal plane is an inclination angle, the inclination angle corresponding to the inclined hole farther away from the vertical hole is smaller, and the projection interval distance of the rotational connection between any adjacent two taking links and the taking guide hole on the horizontal plane is always the same.

[0011] By adopting the technical scheme, since the material taking connecting rods are multiple and synchronous movement of all the material taking connecting rods can be realized, the material taking guide holes are multiple and divided into vertical holes and inclined holes, the inclined holes are symmetrically distributed on the two sides of the vertical holes, the distance between the inclined hole on the same side of the vertical hole and the vertical hole is greater when the corresponding inclined angle of the inclined hole is smaller, at this time, the material taking connecting rods are always consistent in height, and the straight line distance of any two adjacent connecting rods in the horizontal plane is completely equal, since the distance between any two adjacent material taking connecting rods is the same during the movement of the material taking connecting rods, it can be ensured that the stud bolts connected to the material taking connecting rods are accurately inserted into the clamping holes on the clamping plate, and then after the clamping plate is turned over and moved, the end of the stud bolt is accurately inserted into the heating coil to complete the quenching. In this way, the difficulty of overall control of the equipment can be reduced, the positioning logic program of the stud bolt during movement can be simplified, the accuracy during automatic operation is improved, and the heat treatment efficiency of the stud bolt is finally improved.

[0012] Optionally, the material taking module further comprises a material taking roller, the material taking roller is rotationally arranged at the middle part of the material taking connecting rod and penetrates the material taking guide hole.

[0013] By adopting the technical scheme, the material taking roller is rotationally arranged in the material taking guide hole, the frictional force received by the material taking connecting rod during movement can be reduced, the stability of the material taking connecting rod during movement is improved, the service life of the material taking module as a whole is improved, and the failure rate of the equipment is reduced.

[0014] Optionally, the material taking module further comprises a first guide and a second guide, the first guide is located between the material taking bottom plate and the material taking guide plate, and the second guide is located between the material taking bottom plate and the material taking connecting rod.

[0015] By adopting the technical scheme, in order to further improve the stability of the material taking connecting rod during movement, the first guide is arranged between the material taking bottom plate and the material taking guide plate, and the second guide is arranged between the material taking bottom plate and the material taking connecting rod.

[0016] Optionally, the clamping module further comprises a third guide, the third guide is located between the ground and the clamping support.

[0017] By adopting the technical scheme, in order to reduce the frictional force received by the clamping support during movement and further improve the stability of the clamping support during movement, the clamping module further comprises a third guide, the third guide is located between the ground and the clamping support, and the output end of the clamping driving element is connected to the clamping support.

[0018] Optionally, the clamping module further comprises a clamping turntable fixedly connected on the symmetric sides of the clamping plate, the clamping turntable is connected on the output end of the clamping rotating part, and the clamping turntable and the clamping rotating part are one-to-one correspondence.

[0019] By adopting the above technical scheme, the clamping turntable is arranged between the clamping plate and the clamping rotating part, so that the stability of the clamping plate during rotation can be effectively improved, and the center of the clamping plate and the output center of the clamping rotating part are kept coincident, which is beneficial to accurately inserting the end of the stud bolt into the heating coil after turning and moving.

[0020] Optionally, the heating module further comprises a heating support, a heating bottom plate and a high-frequency alternating power supply, the heating support is arranged on the ground, the heating bottom plate is detachably fixed on the heating support, a plurality of fixing holes are opened on the heating bottom plate, a part of the heating coil is arranged in the fixing hole, the heating coil and the fixing hole are one-to-one correspondence, and the high-frequency alternating power supply is electrically connected with the heating coil.

[0021] By adopting the above technical scheme, the heating support is arranged on the ground, and the heating support and the clamping support have a certain distance. The heating bottom plate is arranged on the heating support in a detachable manner. A plurality of fixing holes are opened on the heating bottom plate, and the heating coil is arranged in the fixing hole. The heating coils are in series. The heating coil is connected with the external high-frequency alternating power supply. High-frequency alternating current is input into the heating coil to realize quenching treatment of the thread of the end of the stud bolt.

[0022] Optionally, the heating module further comprises a heating support, a heating bottom plate and a high-frequency alternating power supply, the heating support is arranged on the ground, the heating bottom plate is detachably fixed on the heating support, a plurality of fixing holes are opened on the heating bottom plate, a part of the heating coil is arranged in the fixing hole, the heating coil and the fixing hole are one-to-one correspondence, and the high-frequency alternating power supply is electrically connected with the heating coil.

[0023] By adopting the above technical scheme, in order to further improve the automation degree of the whole heat treatment equipment, the signal transmitter is arranged on the side of the heating module, and the signal receiver is arranged on the clamping support. When the clamping support moves to the specified position, the signal receiver will receive the signal of the signal transmitter. The signal receiver transmits the signal to the control cabinet, and then stops the movement of the clamping support.

[0024] In the second aspect, the application provides a heat treatment process of a stud bolt, which adopts the following technical scheme: A heat treatment process of a stud bolt, applied to the heat treatment equipment of the stud bolt described above, comprising the following steps: S1, a row of stud bolts are put into the hopper, the axis of the stud bolt is perpendicular to the ground, and the number of stud bolts in each row is the same as the number of material taking connecting rods; S2, control the first material taking driving part and the second material taking driving part to start action, so that the material taking connecting rod moves to the upper of the stud bolt with the electromagnet, waits for the electromagnet to contact the top of the stud bolt, and the electromagnet is electrified; S3, control the first material taking driving part and the second material taking driving part to start action again, so that the material taking connecting rod sends the stud bolt into the clamping hole of the clamping plate, at this time, the threaded part of the stud bolt is located outside the clamping hole, after the stud bolt is positioned completely, the electromagnet is de-energized; S4, repeat S2 and S3 until all the clamping holes are provided with the stud bolt; S5, control the clamping rotating part to start action, so that the axis of the corresponding clamping hole coincides with the axis of the heating coil, then control the clamping driving part to start work until the threaded part of one end of the stud bolt is completely provided in the heating coil, control the heating coil to be electrified to realize quenching of the threaded part of the stud bolt; S6, after the threaded part of one end of the stud bolt is quenched, control the clamping driving part to start action, so that the stud bolt is separated from the heating coil, then control the clamping rotating part to rotate 180°, and then control the clamping driving part to start action, so that the threaded part of the other end of the stud bolt is inserted into the heating coil to complete quenching; S7, after all the stud bolts on the clamping plate are quenched, the stud bolts on the clamping plate are taken away, then S2 and S6 are repeated until all the stud bolts in the stock bin are quenched.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: Through the form of synchronous movement of multiple connecting rods in the material taking module, the stud bolts placed side by side without spacing are taken out and inserted into the clamping holes with spacing on the clamping plate, and then inserted into the corresponding heating coil to complete the quenching of the threaded part of the stud bolt. In combination with the positioning of the material taking camera, the quenching effect of the threaded end of the stud bolt is realized in a fully automatic form. This structure significantly improves the precision and speed of feeding and positioning, reduces manual intervention, and is suitable for mass production.

[0026] The material taking guide hole is designed as a combination of vertical holes and inclined holes, so that the material taking connecting rod maintains equal spacing distribution during movement, ensures uniform arrangement of the stud bolts on the clamping plate, avoids mutual interference between the heating coils, saves equipment floor space, reduces heat loss, and improves quenching efficiency.

[0027] The clamping module adopts a rotary disc structure to ensure that the stud bolts remain stable and centered during rotation, and cooperates with the induction module to accurately position the stud bolts to ensure that the threaded end of the stud bolt is accurately inserted into the heating coil to achieve uniform quenching. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1is an isometric view of the heat treatment equipment of the double-end bolt provided in the application; Figure 2 is Figure 1 a top view; Figure 3 is Figure 1 a structural schematic view after rotating by a first angle; Figure 4 is Figure 1 a left view; Figure 5 is Figure 1 a structural schematic view after rotating by a second angle; Figure 6 is Figure 1 a structural schematic view after hiding the clamping module; Figure 7 is a partial structural schematic view of the material taking module in the application; Figure 8 is a structural schematic view of the clamping module in the application.

[0029] Explanation of reference signs: 1, hopper; 2, material taking module; 3, clamping module; 4, heating module; 5, signal transmitter; 6, signal receiver; 201, material taking support; 202, first material taking driving member; 203, material taking bottom plate; 204, second material taking driving member; 205, material taking guide plate; 206, material taking connecting rod; 207, electromagnet; 208, material taking camera; 209, material taking pressing plate; 210, material taking roller; 211, first guide member; 212, second guide member; 301, clamping support; 302, clamping rotating member; 303, clamping plate; 304, clamping driving member; 305, third guide member; 307, clamping turntable; 401, heating support; 402, heating bottom plate; 403, heating coil. DETAILED DESCRIPTION

[0030] The application will be further described below in combination with the accompanying Figures 1-8 The application will be further described below in combination with the accompanying

[0031] The application discloses a heat treatment equipment of a double-end bolt.

[0032] Reference Figure 2 , a heat treatment equipment of a double-end bolt comprises a hopper 1, a material taking module 2, a clamping module 3 and a heating module 4.

[0033] Reference Figure 1 , the hopper 1 is placed on the ground, the double-end bolts are placed in the hopper 1 in the form of rows, and the axis of the double-end bolts is perpendicular to the ground.

[0034] Reference Figure 1 、 Figure 3 、 Figure 6 and Figure 7 , the taking-out module 2 includes a taking-out support 201, a first taking-out drive 202, a taking-out bottom plate 203, a second taking-out drive 204, a taking-out guide plate 205, a taking-out connecting rod 206, an electromagnet 207 and a taking-out camera 208.

[0035] The taking-out support 201 is provided on the ground, and the first taking-out drive 202 is provided on the taking-out support 201. The first taking-out drive 202 includes two screw block drive mechanisms, one of which provides linear movement in the X direction, and the other of which provides linear movement in the Z direction. The two screw block drive mechanisms are used together, so that the driving end of the first taking-out drive 202 can move linearly in the X direction and the Z direction independently.

[0036] The taking-out bottom plate 203 is provided on the output end of the first taking-out drive 202, so that the taking-out bottom plate 203 can move linearly in the X direction and the Z direction independently. The second taking-out drive 204 is provided on the taking-out bottom plate 203. The second taking-out drive 204 is also a screw block drive mechanism, and provides linear movement in the Z direction.

[0037] The taking-out guide plate 205 is slidably provided on the taking-out bottom plate 203, and a first guide 211 is provided therebetween. This not only reduces the friction during movement of the taking-out guide plate 205, but also improves the stability of the taking-out guide plate 205 during movement. The taking-out guide plate 205 is connected to the driving end of the second taking-out drive 204, so that linear movement in the Z direction can also be achieved.

[0038] Reference Figure 7, the material taking guide plate 205 is provided with material taking guide holes, the material taking guide holes are long strip holes and multiple, the material taking guide holes are divided into vertical holes and inclined holes, the vertical holes are located in the center, the inclined holes are divided into two groups, the two groups of inclined holes are symmetrically distributed on the two sides of the vertical holes, the acute angle between the axis of the inclined hole and the horizontal plane (parallel to the ground) is the inclination angle, and the farther the distance of the inclined hole from the vertical hole, the smaller the inclination angle corresponding to the inclined hole. The middle part of the material taking connecting rod 206 is slidably arranged in the material taking guide hole by means of the material taking roller 210, the material taking guide hole is provided in this form, so that the material taking connecting rod 206 can move in the X direction when moving in the Z direction, and the shortest straight line distance between the projections of any two adjacent material taking connecting rods 206 on the horizontal plane is equal. That is, when the material taking connecting rod 206 is located at the top end of the material taking guide hole, the height of the center of the material taking connecting rod 206 is completely the same, the distance between the centers of any two adjacent material taking connecting rods 206 is completely the same, and at this time, the distance between the centers of any two adjacent material taking connecting rods 206 is the maximum; on the contrary, when the material taking connecting rod 206 is located at the lowest end of the material taking guide hole, the height of the center of the material taking connecting rod 206 is also completely the same, the distance between the centers of any two adjacent material taking connecting rods 206 is also completely the same, but this distance is the minimum. During the reciprocating linear movement of the material taking guide plate 205 in the Z direction, only the distance between the material taking connecting rods 206 is adjusted, and it is ensured that the distance between any two adjacent material taking connecting rods 206 is completely the same during the movement.

[0039] Since the material taking guide plate 205 moves in the Z direction, the inclined hole corresponding to the material taking connecting rod 206 will slide relative to the material taking bottom plate 203. In order to reduce the friction and improve the stability during movement, a second guide 212 is arranged between the material taking connecting rod 206 and the material taking bottom plate 203.

[0040] Reference Figure 7 The electromagnet 207 is arranged at the bottom end of the material taking connecting rod 206 and is used to adsorb the stud in the state of being electrified. The material taking pressing plate 209 is arranged at the bottom end of the material taking connecting rod 206, and the electromagnet 207 is arranged on the material taking pressing plate 209. The electromagnet 207 adsorbs the top end of the stud after being electrified.

[0041] Reference Figure 6 The material taking camera 208 is arranged on the material taking bottom plate 203, and the material taking camera 208 is used to shoot pictures and transmit picture information to the external control cabinet. The control cabinet analyzes the picture information to complete the positioning of the stud in the material bin 1 and the positioning of the clamping hole on the clamping plate 303.

[0042] In order to avoid interference between the material taking guide plate 205 and the material taking camera 208, the material taking guide plate 205 and the material taking camera 208 are arranged on both sides of the material taking bottom plate 203. And the material taking pressing plate 209, the electromagnet 207 and the material taking camera 208 are located on the same side of the material taking bottom plate 203.

[0043] Reference Figure 1 , the X direction, the Y direction and the Z direction are perpendicular to each other.

[0044] Reference Figure 1 and Figure 8 The clamping module 3 comprises a clamping base 306, a clamping support 301, a clamping rotating part 302, a clamping turntable 307, a clamping plate 303, a clamping driving part 304 and a third guide 305. The third guide 305 is arranged on the ground, the clamping support 301 is arranged on the third guide 305, the driving end of the clamping driving part 304 is connected to the clamping support 301, the pushing end of the clamping driving part 304 moves along the X direction, and the third guide 305 can reduce the friction between the ground and the clamping support 301 and improve the stability of the movement process of the clamping support 301.

[0045] The clamping rotating part 302 is arranged on the clamping support 301, and the clamping turntable 307 is connected to the output end of the clamping rotating part 302, and the output end of the clamping rotating part 302 rotates along the X axis direction. The clamping turntable 307 is connected to both sides of the clamping plate 303, the clamping plate 303 rotates through the clamping rotating part 302, and the rotation axis of the clamping plate 303 is along the X axis direction. A plurality of clamping holes are formed in the clamping plate 303, and the plurality of clamping holes are divided into a plurality of groups, and the number of clamping holes in each group is the same as the number of connecting rods.

[0046] Reference Figure 3 and Figure 6 The heating module 4 comprises a heating coil 403, a heating support 401, a heating bottom plate 402 and a high-frequency alternating current power supply. Among them, the heating support 401 is located on the ground, the heating bottom plate 402 is fixed on the heating support 401 in a detachable manner, the heating bottom plate 402 is provided with fixing holes penetrating through both sides of the heating bottom plate 402, the heating coil 403 is a plurality of and is arranged in the fixing holes in a one-to-one corresponding manner, a part of the heating coil 403 is connected in the fixing hole and a part is located outside the heating bottom plate 402, the end of the stud bolt can be inserted into the heating coil 403 to complete the quenching. The heating coil 403 is in series, the high-frequency alternating current power supply is connected to the closed loop formed by the heating coil 403, and the heating coil 403 is rapidly heated by the high-frequency alternating current power supply.

[0047] Reference Figure 3 and Figure 5, in order to improve the degree of automation of the heat treatment equipment, further comprising an induction module, the induction module comprises a signal transmitter 5 and a signal receiver 6, the signal transmitter 5 is arranged at the side of the heating support 401, and the signal receiver 6 is arranged on the clamping support 301; when the clamping support 301 moves to the specified position, the signal receiver 6 receives the signal of the signal transmitter 5, at this time, the end of the stud bolt is just arranged in the heating coil 403.

[0048] The control cabinet is electrically connected with the signal transmitter 5 and the camera, and is used for processing signals transmitted by the signal receiver 6 and the camera. Meanwhile, the control cabinet is also electrically connected with the motor in the first material taking driving member 202, the motor in the second material taking driving member 204, the motor of the clamping rotating member 302 and the motor of the clamping driving member 304.

[0049] The implementation principle of the embodiment name of the application is that the stud bolts are placed in the material bin 1 by artificial or mechanical means, and then the material bin 1 is placed on the specified position. Since the stud bolts are arranged side by side and have no gap between each other, the space occupied by the material bin 1 can be reduced, and the internal structure of the material bin 1 can be designed without being responsible. Then the material taking connecting rod 206 in the material taking module 2 cooperates with the electromagnet 207 to place the stud bolts arranged in rows on the clamping plate 303. After the clamping holes on the clamping plate 303 are filled, the two ends of the stud bolts are respectively arranged in the heating coil 403 through the movement of the clamping support 301 and the rotation of the clamping plate 303. Under the premise that the heating coil 403 is connected with high-frequency alternating current, the quenching treatment of the thread of the end of the stud bolt is realized.

[0050] The application further discloses a heat treatment process of the stud bolt. S1, a plurality of stud bolts are placed in the material bin 1, and the axis of the stud bolt is perpendicular to the ground. The number of stud bolts in each row is the same as the number of material taking connecting rods 206; S2, the first material taking driving member 202 and the second material taking driving member 204 are controlled to start to act, so that the material taking connecting rod 206 moves to the upper side of the stud bolt with the electromagnet 207. After the electromagnet 207 contacts the top of the stud bolt, the electromagnet 207 is powered on; S3, the first material taking driving member 202 and the second material taking driving member 204 are controlled to start to act again, so that the material taking connecting rod 206 sends the stud bolt into the clamping hole of the clamping plate 303. At this time, the threaded part of the stud bolt is located outside the clamping hole. After the stud bolt is completely positioned, the electromagnet 207 is powered off; S4, S2 and S3 are repeated until the stud bolt is arranged in all the clamping holes; S5, control the clamping rotating member 302 to start action, so that the axis of the corresponding clamping hole coincides with the axis of the heating coil 403, and then control the clamping driving member 304 to start work until the threaded part of one end of the stud bolt is completely arranged in the heating coil 403, and control the heating coil 403 to be electrified to realize quenching of the threaded part of the stud bolt; S6, after the threaded part of one end of the stud bolt is quenched, control the clamping driving member 304 to start action to make the stud bolt separate from the heating coil 403, then control the clamping rotating member 302 to rotate 180°, and then control the clamping driving member 304 to start action to make the threaded part of the other end of the stud bolt pass into the heating coil 403 to complete quenching; S7, after all the stud bolts on the clamping plate 303 complete quenching, take away the stud bolts on the clamping plate 303, and then repeat S2 and S6 until all the stud bolts in the stock bin 1 complete quenching.

[0051] The embodiments of the specific implementation are the preferred embodiments of the application, and are not limited to the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A heat treatment apparatus for stud bolts, characterized by comprising: The utility model relates to a kind of double-end bolt automatic feeding machines, including: A hopper (1) contains a plurality of double-end bolts, a plurality of double-end bolts are divided into groups, double-end bolts in each group are arranged side by side, and the axis of double-end bolts is perpendicular to the ground. A taking material module (2) includes a taking material support (201), a first taking material driving element (202), a taking material bottom plate (203), a second taking material driving element (204), a taking material guide plate (205), a taking material connecting rod (206), an electromagnet (207) and a taking material camera (208), the taking material support (201) is provided on the ground, the first taking material driving element (202) is provided on the taking material support (201), the taking material bottom plate (203) is provided on the driving end of the first taking material driving element (202), the taking material bottom plate (203) moves along the X direction and the Z direction by means of the first taking material driving element (202), the second taking material driving element (204) is provided on the bottom plate, the taking material guide plate (205) is slidably provided on the taking material bottom plate (203), the driving end of the second taking material driving element (204) is connected to the taking material guide plate (205), the taking material guide plate (205) moves along the Z direction by means of the second taking material driving element (204), the taking material guide plate (205) is provided with a plurality of taking material guide holes, the top end of the taking material connecting rod (206) is slidably provided on the taking material bottom plate (203), the middle part of the taking material connecting rod (206) is slidably provided in the taking material guide hole, the taking material connecting rod (206) moves synchronously along the Y direction and the Z direction by means of the cooperation of the taking material guide plate (205) and the taking material bottom plate (203), the electromagnet (207) is provided at the bottom end of the taking material connecting rod (206), the taking material camera (208) is provided on the bottom plate with the shooting end facing the ground, the taking material connecting rod (206), the taking material guide hole, the electromagnet (207) are all multiple and correspondingly provided, the number of taking material connecting rods (206) is the same as the number of double-end bolts in each group and is correspondingly provided. A clamping module (3) includes a clamping support (301), a clamping rotating element (302), a clamping plate (303) and a clamping driving element (304), the clamping support (301) is slidably provided on the ground, the clamping rotating element (302) is provided on the clamping support (301), the end of the clamping plate (303) is connected to the output end of the clamping rotating element (302), a plurality of clamping holes are provided on the clamping plate (303), a plurality of clamping holes are divided into groups, the number of clamping holes in each group is the same as the number of double-end bolts in each group, when the double-end bolt is provided in the clamping hole, the threaded part of the double-end bolt is located outside the clamping hole, the drive is provided on the ground with the output end connected to the clamping support (301). The heating module (4) comprises a plurality of heating coils (403), and the heating coils (403) are divided into groups, and the number of the heating coils (403) in each group is the same as the number of the stud bolts in each group; The threaded part of the stud bolt located in the clamping hole penetrates into the heating coil (403) to complete the quenching treatment.

2. The apparatus for heat treating a double-end bolt according to claim 1, wherein: The number of the clamping holes is the same as the number of the heating coils (403) and is arranged one by one.

3. The apparatus for heat treating a double ended bolt of claim 1, wherein: The material taking guide hole is divided into a vertical hole and an inclined hole, the inclined hole is symmetrically arranged on both sides of the vertical hole, the vertical hole and the inclined hole are long strip holes, the acute angle between the axis of the inclined hole and the horizontal plane is an inclination angle, the inclination angle corresponding to the inclined hole farther away from the vertical hole is smaller, and the projection interval distance of the rotary connection of any two adjacent material taking connecting rods (206) and the material taking guide hole on the horizontal plane is always the same.

4. The apparatus for heat treating a double ended bolt of claim 3, wherein: The material taking module (2) further comprises a material taking roller (210), and the material taking roller (210) is rotatably arranged in the middle of the material taking connecting rod (206) and penetrates into the material taking guide hole.

5. The apparatus for heat treating a double ended bolt of claim 4, wherein: The material taking module (2) further comprises a first guide (211) and a second guide (212), the first guide (211) is located between the material taking bottom plate (203) and the material taking guide plate (205), and the second guide (212) is located between the material taking bottom plate (203) and the material taking connecting rod (206).

6. The apparatus for heat treating a double-ended bolt of any one of claims 1-5, wherein: The clamping module (3) further comprises a third guide (305), and the third guide (305) is located between the ground and the clamping support (301).

7. The apparatus for heat treating a double ended bolt of claim 6 wherein: The clamping module (3) further comprises a clamping turntable (307), the clamping turntable (307) is fixedly connected on the symmetric sides of the clamping plate (303), the clamping turntable (307) is connected on the output end of the clamping rotating part (302), and the clamping turntable (307) and the clamping rotating part (302) are arranged one by one.

8. The apparatus for heat treating a double ended bolt of any one of claims 1-5, wherein: The heating module (4) further comprises a heating support (401), a heating bottom plate (402) and a high-frequency alternating power supply, the heating support (401) is arranged on the ground, the heating bottom plate (402) is fixed on the heating support (401) in a detachable manner, a plurality of fixing holes are formed in the heating bottom plate (402), a part of the heating coil (403) penetrates into the fixing hole, the heating coil (403) and the fixing hole are arranged one by one, and the high-frequency alternating power supply is electrically connected with the heating coil (403).

9. The apparatus for heat treating a double ended bolt of any one of claims 1-5, wherein: Further comprising an induction module, the induction module comprises a signal transmitter (5) and a signal receiver (6), the signal transmitter (5) is located on the side of the heating module, and the signal receiver (6) is arranged on the clamping support (301).

10. A heat treatment process of a stud bolt, applied to the heat treatment apparatus of the stud bolt according to claim 1, characterized by, The method comprises the following steps: S1, a plurality of stud bolts are put into the hopper (1), the axis of the stud bolt is perpendicular to the ground, and the number of the stud bolts in each row is the same as the number of the material taking connecting rod (206); S2, the material taking module (2) is arranged on the stud bolts, the material taking module (2) is arranged on the stud bolts in a sleeving manner, and the material taking module (2) is arranged on the stud bolts in a sleeving manner. S2, control the first material taking driving part (202) and the second material taking driving part (204) to start action, with the material taking connecting rod (206) moves to the top of the stud bolt, when the electromagnet (207) contacts the top of the stud bolt, power on the electromagnet (207); S3, control the first material taking driving part (202) and the second material taking driving part (204) to start action again, with the material taking connecting rod (206) sends the stud bolt into the clamping hole of the clamping plate (303), at this time, the threaded part of the stud bolt is located outside the clamping hole, after the stud bolt is completely positioned, the electromagnet (207) is powered off; S4, repeat S2 and S3 until all the clamping holes are provided with the stud bolt; S5, control the clamping rotating part (302) to start action, so that the axis of the corresponding clamping hole coincides with the axis of the heating coil (403), then control the clamping driving part (304) to start work until the threaded part of one end of the stud bolt is completely provided in the heating coil (403), control the heating coil (403) to be powered on to realize quenching of the threaded part of the stud bolt; S6, after the threaded part of one end of the stud bolt is quenched, control the clamping driving part (304) to start action, so that the stud bolt is separated from the heating coil (403), then control the clamping rotating part (302) to rotate 180°, then control the clamping driving part (304) to start action, so that the threaded part of the other end of the stud bolt is provided into the heating coil (403) to complete quenching; S7, after all the stud bolts on the clamping plate (303) are quenched, take away the stud bolts on the clamping plate (303), then repeat S2 and S6 until all the stud bolts in the stock bin (1) are quenched.

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