[0057] Example one
[0058] Combine Figure 1 to Figure 4 As shown, the induction quenching equipment provided in the first embodiment includes a workpiece platform 1 and a quenching induction device 2. Among them, the workpiece platform 1 is used to install the workpiece 4 to be processed, and the quenching induction device 2 includes an inductor bracket 21 and a plurality of quenching heating inductors 22 arranged on the inductor bracket 21, and the plurality of quenching heating inductors 22 are enclosed for In the work area where the workpiece 4 is heated as a whole. The shape and size of this working area can be flexibly set according to the condition of the workpiece 4, for example, when the workpiece 4 is annular, the shape of the working area corresponds to the annular region, so that the workpiece 4 is heated more uniformly. It can be seen that the induction hardening equipment adopts the overall heating and quenching method. Compared with the existing scanning induction heating and quenching, this quenching method can uniformly heat the entire surface of the workpiece and avoid the soft band problem of the workpiece during the quenching process.
[0059] The specific form of the workpiece platform 1 in this embodiment is not limited, and can be flexibly set according to actual needs. The sensor support 21 can be a common support structure, and can also be further preferably a platform structure with a lifting function and a rotation function. During quenching, the workpiece 4 is placed on the workpiece platform 1, and the lifting movement and circumferential rotation of the workpiece 4 are realized through the workpiece platform 1. The purpose of the lifting movement is to make the workpiece 4 between the annular working area and the preset cooling pool Switch position. The purpose of the circumferential rotation is to enable the workpiece 4 to be uniformly heated throughout the annular working area. Take one of the preferred platform structures as an example.
[0060] Such as figure 2 As shown, the workpiece platform 1 may include a lifting mechanism 11. The lifting mechanism 11 is designed to adjust the height of the workpiece 4 on the one hand, and to quickly immerse the workpiece 4 in the quenching liquid on the other hand.
[0061] Preferably, the lifting mechanism 11 includes a plurality of lifting cylinders 111. The output ends of the multiple jacking cylinders 111 are respectively connected to the bottom of the rotating frame 121 for driving the rotating frame 121 to move up and down. The jacking cylinder 111 can be arranged in a preset cooling pool for subsequent cooling operations. Similarly, the number of jacking cylinders 111 may be multiple, such as three, four, and so on.
[0062] Further, an anchor fixing member (such as an anchor bolt) is provided at the bottom of each jacking cylinder 111 to facilitate fixing. Moreover, in order to make the lifting process of the jacking cylinder 111 stable and reliable, a guide tube 112 is sleeved on the outside of each jacking cylinder 111.
[0063] Such as figure 2 As shown, the workpiece platform 1 may also include a rotating mechanism 12. The design of the rotating mechanism 12 is to make the entire surface of the workpiece 4 evenly heated.
[0064] For the rotating mechanism 12, the rotating mechanism 12 includes a rotating frame 121 and a rotating table arranged in sequence from bottom to top. The rotating frame 121 is fixed on the elevating mechanism 11 and moves up and down under the driving of the elevating mechanism 11. The rotating table rotates 360° on the rotating frame 121, and a locking assembly 124 for fixing the workpiece 4 is provided on the rotating table. The rotation of the rotating table can be realized by the circular rail 126 and the roller 125, that is, the circular rail 126 is provided on the rotating frame 121, and the roller 125 matching the circular rail 126 is provided under the rotating table. The structure is simple and stable, and can be fast Realize rotation and lifting functions.
[0065] In order to be able to quench the workpieces 4 of different sizes, the rotating table includes a connecting seat 123 and a plurality of first extension arms 122; the connecting seat 123 is arranged at the center of the circular track 126; The rail 126 is radially connected to the connecting seat 123, and the plurality of first extension arms 122 are on the same plane, and are used to jointly carry workpieces 4 of different sizes. Correspondingly, the roller 125 is respectively installed under each first extension arm 122; and the locking assembly 124 is respectively installed on each first extension arm 122 and can be installed along the first extension arm 122 Axial movement, so as to be able to lock workpieces 4 of different sizes.
[0066] The first extension arm 122 can be flexibly designed according to the size and weight of different workpieces 4, for example: the number of the first extension arm 122 can be four, six, eight, etc.; the form of the locking assembly 124 can also be There are many kinds, such as: bolt limit or pin limit or clip limit and so on.
[0067] Furthermore, in order to satisfy the heating uniformity and reliability of the workpiece 4 during the heating process, the rotating table further includes a first driving unit, the first driving unit is arranged under the rotating frame 121, and the output end of the first driving unit is connected to The connecting seat 123 is connected to drive the connecting seat 123 to rotate and to drive the roller 125 to move along the circular track 126. The first driving unit may preferably be a motor 128 and a reducer 127, and the motor 128 and the reducer 127 drive the roller 125 to rotate 360° on the circular track 126, so as to realize the rotation of the workpiece 4 to be processed.
[0068] In this embodiment, the inductor bracket 21 is used as a support and adjustment device for the quenching heating inductor 22, and its specific form can also be varied. The inductor holder 21 is used to adjust the relative position between each quenching heating inductor 22 and the workpiece 4. The following preferred embodiments are described.
[0069] Such as image 3 As shown, the sensor support 21 includes a fixed plate 211, a suspension assembly 213, and an adjustment assembly 214.
[0070] The fixed disk 211 is located above the workpiece platform 1, and a plurality of second extension arms 212 are provided on the fixed disk 211 along its radial direction. Preferably, the fixed disk 211 is in the shape of a disc, and a plurality of second extension arms 212 are evenly arranged on the outer periphery of the fixed disk 211, and a quenching heating inductor 22 is connected below each second extension arm 212 to form Annular working area. Of course, the number of the second extension arms 212 can also be flexibly set, for example: four, six, eight, and so on. The suspension assembly 213 is correspondingly disposed on each second extension arm 212, and can move along the axial direction of the second extension arm 212. Preferably, the suspension assembly 213 may be sleeved on the second extension arm 212 Sliding sleeve structure; the adjusting component 214 is hoisted at the lower part of the suspension component 213 and is connected to the quenching heating inductor 22; the adjusting component 214 is used to adjust the quenching heating inductor 22 for turning and lifting movements.
[0071] In order to make the quenching process more flexible and easier to adjust, the sensor bracket 21 further includes a screw unit 215 and a second drive unit 216. The screw unit 215 includes a screw and a screw nut arranged on the screw. The screw is preferably The ball screw is arranged axially along the second extension arm 212, and the nut is connected to the suspension assembly 213; the second driving unit 216 is arranged under the fixed disk 211, and its output end is connected to one end of the screw. Among them, the second driving unit 216 is preferably a motor. In this way, through the screw unit 215, the second drive unit 216 and the adjustment assembly 214, the quenching heating inductor 22 can be adjusted in different directions up, down, left, right, front and back.
[0072] Further, the adjusting assembly 214 includes a first adjusting piece and a second adjusting piece; the first adjusting piece is rotatably hoisted at the lower part of the suspension assembly 213, preferably, the first adjusting piece is a rotating piece composed of a shaft and a bearing; The two adjusting parts are arranged at the lower part of the first adjusting part in a liftable manner. Preferably, the second adjusting part is a screw rod and a bearing part mounted on the screw rod, the bearing part is used for mounting the rotating part, and the screw rod is used to adjust the height of the bearing part; The quenching heating inductor 22 is connected to the lower part of the second adjusting member.
[0073] The quenching heating inductor 22 in this embodiment can follow the basic structure in the prior art, and of course it can also be further modified. A quenching heating inductor 22 with basic functions is described below.
[0074] The quenching heating inductor 22 includes a transformer unit 221 and an inductor unit 222. The transformer unit 221 and the inductor unit 222 can be integrally connected; the transformer unit 221 is hoisted at the lower part of the adjustment assembly 214, and the workpiece 4 is heated by the inductor unit 222. . In addition, the quenching heating inductor 22 further includes a cooling unit 223 for controlling the temperature of the inductor unit 222. Preferably, the transformer unit 221 is a high frequency induction hardening transformer with a time relay, which can control the heating time. The inductor unit 222 is used to complete induction hardening of the workpiece 4, and the shape of the inductor unit 222 is preferably an arc shape. Of course, the number of inductor units 222 and transformer units 221 can be adjusted according to the size of the workpiece 4, so that the quenching process is more flexible and the adjustment is more convenient.
[0075] The induction hardening equipment provided in the first embodiment may further include a lifting device 3 on the basis of the above structure. The lifting device 3 plays a load-bearing function and is used to lift the quenching induction device 2 above the workpiece platform 1.
[0076] Such as Figure 4 As shown, the lifting device 3 includes a gantry 31, a box beam assembly 32 and a connecting assembly 34; the gantry 31 is movably arranged on both sides of the cooling pool, and the box beam assembly 32 is erected on top of the two gantry frames 31; The connecting assembly 34 includes a connecting plate arranged on the box beam assembly 32. The connecting plate can be connected to the fixing plate 211 of the sensor bracket 21 by bolts. An annular fixing seat is provided on the upper part of the connecting plate, and the outer circumference of the annular fixing seat is along the A plurality of third extending arms 33 are provided in the radial direction, and the third extending arms 33 are used for hoisting the sensor bracket 21. The number of the third extension arms 33 can be four, six, eight, etc. Generally, the number of the third extension arms 33 and the second extension arms 212 are the same, and each third extension arm 33 The corresponding second extension arm 212 is connected.
[0077] Further, a walking assembly is provided at the bottom of the gantry 31. The walking assembly includes a guide rail 36, a walking wheel, and a third driving unit 35. The walking wheel is arranged at the lower part of the gantry 31 and is matched with the guide rail 36; the third driving unit 35 The output end of is connected with the walking wheel, and is used to drive the gantry 31 to travel, so as to drive the overall movement of the quenching induction device 2.
[0078] The induction hardening equipment provided in the first embodiment also includes a control mechanism, which includes an electrical control unit 5 for controlling the quenching heating inductor 22 to work, and a hydraulic control for controlling the work platform 1 and the inductor bracket 21 to operate. Unit 6.
[0079] The basic principle of the induction hardening equipment provided in the first embodiment for quenching the workpiece 4 is as follows:
[0080] First, the work platform 1 fixes the jacking cylinder 111 and the guide cylinder 112 in a pre-designed cooling pool through anchor bolts. The cooling pool is filled with quenching liquid during operation, and the jacking cylinder 111 drives the rotating table up to a predetermined position. The workpiece 4 is hoisted to the rotating table and fixed by the locking assembly 124, and then the lifting cylinder 111 drives the rotating table and the workpiece 4 down to a certain height; then, the third driving unit 35 drives the gantry 31 to move, so that the quenching induction device 2 The whole is moved to directly above the workpiece platform 1, and then the lifting cylinder 111 drives the rotating table and the workpiece 4 to rise to a predetermined position (circular working area), and the sensor unit 222 is adjusted through the lifting cylinder 111, the ball screw and the adjustment assembly 214 The distance from the workpiece 4; after the adjustment is completed, the first drive unit on the rotating bracket drives the workpiece 4 to rotate. At this time, the electrical control unit 5 and the cooling unit 223 are turned on, and the sensor unit 222 is controlled to heat the workpiece 4 to make the workpiece 4 4 The surface temperature as a whole reaches the expected value; after that, the lifting cylinder 111 quickly drives the rotating table and the workpiece 4 to drop into the quenching liquid in the cooling pool for cooling; the third drive unit 35 drives the gantry 31 to move back to the original starting point; after cooling is completed The lifting oil cylinder 111 drives the rotating table and the workpiece 4 to rise to a predetermined position, the locking device is released, and the workpiece 4 is hoisted away from the rotating table to realize the whole quenching of the workpiece 4 once.
