A high-precision high-frequency heat treatment equipment

Abstract

The present invention discloses a high-precision high-frequency heat treatment equipment related to the technical field of heat treatment equipment, which solves the problem of poor positioning accuracy. The technical points are: a high-precision high-frequency heat treatment equipment, including a frame, a sliding frame and a high-frequency heater, the sliding frame is slidably connected to the frame, the sliding frame is rotatably connected with a positioning block, the sliding frame is equipped with a mounting frame, the mounting frame is fixedly equipped with a positioning cylinder, the top rod of the positioning cylinder is equipped with a pressure head device, the pressure head device is located between the positioning cylinder and the positioning block, a translation drive is provided between the sliding frame and the frame, a non-contact displacement sensor is provided between the frame and the sliding frame, the non-contact displacement sensor extends along the direction in which the sliding frame slides on the frame, and the non-contact displacement sensor is fixedly installed on the frame. The advantage of high positioning accuracy is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment equipment, in particular to high-precision high-frequency heat treatment equipment. Background Art

[0002] Heat treatment refers to a metal heat processing process in which materials are heated, kept warm and cooled in a solid state to obtain the desired structure and properties. High-frequency heating is a method of heating electrical conductors using electromagnetic induction. It generates a high-frequency magnetic field around the metal and generates eddy currents in the metal through the magnetic field, causing Joule heating of the metal due to the resistance of the metal itself.

[0003] In the prior art, some heat treatment equipment uses high-frequency heating to heat treat the workpiece. When the installation position of the workpiece is offset, the heating effect on the workpiece will also change. Therefore, the accuracy of the metal position will directly affect the accuracy of the heating effect of the high-frequency heat treatment equipment on the workpiece. In the prior art, the positioning accuracy of the high-frequency heat treatment equipment on the workpiece is poor, resulting in the poor heating effect of the existing high-frequency heat treatment equipment on the workpiece. Therefore, the high-frequency heat treatment equipment in the prior art has the problem of poor positioning accuracy of the workpiece. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a high-precision high-frequency heat treatment equipment, which has the advantage of high positioning accuracy for the workpiece.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A high-precision high-frequency heat treatment equipment comprises a frame, a sliding frame and a high-frequency heater, wherein the sliding frame is slidably connected to the frame, the sliding frame is rotatably connected to a positioning block, the sliding frame is equipped with a mounting frame, the mounting frame is fixedly equipped with a positioning cylinder, the top rod of the positioning cylinder is equipped with a pressure head device, the pressure head device is located between the positioning cylinder and the positioning block, a translation drive member is provided between the sliding frame and the frame, a non-contact displacement sensor is provided between the frame and the sliding frame, the non-contact displacement sensor extends along the direction in which the sliding frame slides on the frame, and the non-contact displacement sensor is fixedly installed on the frame.

[0007] As a further improvement of the present invention: a servo motor is fixedly mounted on the sliding frame, an output shaft of the servo motor is fixedly connected to a driving pulley, the positioning block is fixedly connected to a driven pulley, and a transmission belt is wound between the driving pulley and the driven pulley.

[0008] As a further improvement of the present invention: it also includes a control module and a drive module, the non-contact displacement sensor is electrically connected to the control module, and the drive module is electrically connected to the control module and the servo motor respectively.

[0009] As a further improvement of the present invention: the translation driving member is a driving cylinder whose two ends are respectively fixedly connected to the sliding frame and the frame.

[0010] As a further improvement of the present invention: the frame is fixedly connected with a limit block which is engaged with the sliding frame.

[0011] As a further improvement of the present invention: the mounting frame is slidably connected to the sliding frame along a direction close to the positioning block, the sliding frame is threadedly connected with a screw rod, and the screw rod is rotationally connected to the mounting frame and axially clamped.

[0012] As a further improvement of the present invention: the pressure head device is a pressure head block rotatably connected to the positioning cylinder, and the side of the pressure head block close to the positioning block is in an arc shape.

[0013] As a further improvement of the present invention: the pressure head device includes a cooling block and a pressure head cover, the cooling block is slidably connected with the pressure head cover in a direction close to the positioning block, an elastic member is provided between the pressure head cover and the cooling block, and the cooling block is provided with a cooling assembly.

[0014] As a further improvement of the present invention: the cooling assembly includes a cooling water tank, a cooling pump and a cooling pipe, the cooling pump is connected to the cooling water tank, the two ends of the cooling pipe are respectively connected to the cooling pump and the cooling water tank, the cooling block is provided with a first cooling hole, and the cooling pipe is connected to the first cooling hole.

[0015] As a further improvement of the present invention: the mounting frame includes a mounting plate and a cooling plate, the mounting plate is connected to the frame, the two ends of the cooling plate are respectively fixedly connected to the positioning cylinder and the mounting plate, the cooling plate is provided with a second cooling hole, and the cooling pipe is connected to the second cooling hole.

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

[0017] The positioning cylinder pushes the pressure head device to move towards the positioning block, so that the pressure head device and the positioning block clamp the workpiece, so that the workpiece can be positioned by the positioning block and the pressure head device, and the workpiece is clamped by the positioning block and the pressure head device to keep the workpiece stable and prevent the workpiece from accidentally sliding on the positioning block, thereby improving the stability of the workpiece. The accuracy of the workpiece installation position is effectively improved, thereby ensuring the heat treatment effect and consistency of the heat treatment effect of each workpiece in batch production, and achieving the advantage of high positioning accuracy of the workpiece.

[0018] Since the air temperature around the workpiece is high during the heat treatment process, after the workpiece is mounted on the positioning block, the sliding frame is moved on the frame to drive the workpiece away from the operator, and then the workpiece is subjected to high-frequency heating, which can effectively reduce the air temperature around the operator and improve the comfort of the operator. At the same time, the workpiece is clamped by the pressure head device and the positioning block, which can effectively prevent the position of the workpiece from shifting during the movement of the workpiece driven by the sliding frame, thereby improving the positioning accuracy of the workpiece and ensuring the heat treatment effect.

[0019] The position of the sliding frame is detected by a non-contact displacement sensor, so as to facilitate the detection of the position of the sliding frame, achieve the effect of facilitating the positioning of the sliding frame, and also improve the positioning accuracy of the sliding frame.

[0020] The positioning block drives the workpiece to rotate, so that the high-frequency heater can heat specific positions of the workpiece from different directions of the workpiece, making the temperature of each part of the workpiece more uniform, improving the heating effect of the workpiece, and facilitating processing. During the reheating process, the workpiece rotates or obtains heat uniformly. The pressure head device can not only ensure that the workpiece is placed in place, but also reduce the swing amplitude of the rotation during reheating, prevent the workpiece from colliding with the high-frequency heater during rotation, and protect the coil, workpiece and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a high-precision high-frequency heat treatment device in Example 1 of the present application;

[0022] Figure 2 This is a schematic diagram of the structure of the translation drive member and the non-contact displacement sensor in Example 1 of the present application;

[0023] Figure 3 This is a schematic diagram of the connection structure between the control module and the drive module in Example 1 of the present application;

[0024] Figure 4 This is a schematic diagram of the structure of the pressure head device and the cooling assembly in Example 2 of the present application;

[0025] Figure 5 This is a schematic diagram of the structure of the buffer block in Example 2 of the present application.

[0026] 1. The camshaft of the embodiment of the present invention is provided with a plurality of control modules, each of which is provided with a plurality of control modules, and each of which is provided with a plurality of control modules. The camshaft of the embodiment of the present invention is provided with a plurality of control modules, each of which is provided with a plurality of control modules. The camshaft of the embodiment of the present invention is provided with a plurality of control modules, each of which is provided with a plurality of control modules. DETAILED DESCRIPTION

[0027] The present invention is further described with reference to the accompanying drawings and embodiments:

[0028] Embodiment 1:

[0029] A high-precision high-frequency heat treatment equipment, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a frame 11, a sliding frame 12 and a high-frequency heater 13. The sliding frame 12 is slidably connected to the frame 11. The sliding frame 12 is rotatably connected to a positioning block 17. The sliding frame 12 is equipped with a mounting frame 21. The mounting frame 21 is fixedly equipped with a positioning cylinder 22. The top rod of the positioning cylinder 22 is equipped with a pressure head device 23. The pressure head device 23 is located between the positioning cylinder 22 and the positioning block 17. A translation drive member 14 is provided between the sliding frame 12 and the frame 11. The translation drive member 14 is a driving cylinder fixedly connected to the sliding frame 12 and the frame 11 at both ends. The frame 11 is fixedly connected to a limit block 16 that is clamped with the sliding frame 12. The mounting frame 21 is slidably connected to the sliding frame 12 in a direction close to the positioning block 17. The sliding frame 12 is threadedly connected with a screw rod 24. The screw rod 24 is rotatably connected to the mounting frame 21 and axially clamped. The pressing head device 23 is a pressing head block rotatably connected to the positioning cylinder 22 , and a side of the pressing head block close to the positioning block 17 is in an arc shape.

[0030] The sliding frame 12 is fixedly mounted with a servo motor 31, the output shaft of the servo motor 31 is fixedly connected with a driving pulley 32, the positioning block 17 is fixedly connected with a driven pulley 33, and a transmission belt 34 is wound between the driving pulley 32 and the driven pulley 33. It also includes a control module 35 and a drive module 36, the non-contact displacement sensor 15 is electrically connected to the control module 35, and the drive module 36 is electrically connected to the control module 35 and the servo motor 31 respectively. In this embodiment, the control module 35 adopts a PLC of model QY50, and the drive module 36 adopts a servo driver of model MR-JE-40A. The servo driver is used to control the rotation of the servo motor 31, and the control module 35 is used to send a control instruction to the servo driver to trigger the servo driver to start the servo motor 31.

[0031] A non-contact displacement sensor 15 is provided between the frame 11 and the sliding frame 12, and is used to detect the position of the sliding frame 12. The non-contact displacement sensor 15 extends along the direction in which the sliding frame 12 slides on the frame 11, and the non-contact displacement sensor 15 is fixedly mounted on the frame 11.

[0032] The high-frequency heater 13 is provided with a contour coil 18, and the contour coil 18 is provided with a through slot 19 for the workpiece to pass through. By setting the through slot 19, the workpiece can be moved to the contour coil 18, so that the high-frequency heater 13 heats the workpiece. The metal workpiece is placed on the positioning block 17, and the high-frequency heater 13 generates a high-frequency magnetic field around the workpiece, so that eddy currents are generated in the workpiece, thereby heating the workpiece, thereby realizing the function of heat treatment of the workpiece.

[0033] This embodiment has the following advantages:

[0034] The positioning cylinder 22 pushes the pressing head device 23 to move towards the positioning block 17, so that the pressing head device 23 and the positioning block 17 clamp the workpiece, so that the workpiece can be positioned by the positioning block 17 and the pressing head device 23, and the workpiece is clamped by the positioning block 17 and the pressing head device 23 to keep the workpiece stable and prevent the workpiece from accidentally sliding on the positioning block 17, thereby improving the stability of the workpiece and effectively improving the accuracy of the workpiece installation position, thereby ensuring the heat treatment effect and consistency of the heat treatment effect of each workpiece in mass production, and achieving the advantage of higher positioning accuracy of the workpiece.

[0035] Since the air temperature around the workpiece is high during the heat treatment process, after the workpiece is mounted on the positioning block 17, the sliding frame 12 is moved on the frame 11, so that the sliding frame 12 drives the workpiece to move away from the operator, and then the workpiece is subjected to high-frequency heating, thereby effectively reducing the air temperature around the operator and improving the comfort of the operator. At the same time, the workpiece is clamped by the pressure head device 23 and the positioning block 17, thereby effectively preventing the position of the workpiece from being offset during the movement of the workpiece driven by the sliding frame 12, thereby improving the positioning accuracy of the workpiece and ensuring the heat treatment effect.

[0036] The position of the sliding frame 12 is detected by the non-contact displacement sensor 15, so as to facilitate the detection of the position of the sliding frame 12, achieve the effect of facilitating the positioning of the sliding frame 12, and also improve the positioning accuracy of the sliding frame 12. The non-contact displacement sensor 15 is electrically connected to the numerical control system of the existing high-frequency heat treatment equipment, and the non-contact displacement sensor 15 can send a detection signal value to the numerical control system, and the magnitude of the detection signal value increases with the increase of the sliding distance of the sliding frame 12 on the frame 11. A display screen is electrically connected to the numerical control system, and the numerical control system can display the sliding distance of the sliding frame 12 on the frame 11 through the display screen according to the detection signal value, so as to facilitate the use. An alarm threshold is preset in the numerical control system. When the detection signal value exceeds the alarm threshold, the numerical control system prompts an alarm through the display screen, so as to play a role of limiting and prevent the sliding distance of the sliding frame 12 from exceeding the stroke.

[0037] The servo motor 31 drives the positioning block 17 to rotate through the driving pulley 32, the transmission belt 34 and the driven pulley 33, and drives the workpiece to rotate through the positioning block 17, so that the high-frequency heater 13 can heat the specific position of the workpiece from different directions of the workpiece, so that the temperature of each part of the workpiece is more uniform, which plays a role in improving the heating effect of the workpiece and also plays a role in facilitating processing. In the process of reheating the workpiece, the pressure head device can ensure that the workpiece is placed in place by rotating or obtaining heat uniformly, and can also reduce the swing amplitude of the rotation during reheating, so as to prevent the workpiece from colliding with the high-frequency heater 13 during the rotation process, and has the function of protecting the coil, workpiece and equipment of the high-frequency heater 13.

[0038] The servo motor 31 is controlled by the control module 35 and the drive module 36 , so that the rotation of the servo motor 31 can be conveniently controlled.

[0039] The sliding frame 12 is pushed to move on the frame 11 by driving the air cylinder, so as to facilitate the movement of the sliding frame 12 and achieve the effect of convenient use.

[0040] The limiting block 16 blocks the sliding frame 12 , so as to limit the position of the sliding frame 12 .

[0041] The screw rod 24 is rotated to move on the sliding frame 12 threadedly connected thereto, and the mounting frame 21 is driven to move by the screw rod 24, thereby adjusting the positions of the positioning cylinder 22 and the pressing head device 23, so that it can be suitable for workpieces of different lengths, thereby improving the applicability.

[0042] The workpiece is clamped by a pressure head block rotatably connected to the positioning cylinder 22, so that when the positioning block 17 drives the workpiece to rotate, the pressure head block can rotate to adapt to the rotation of the workpiece, reduce the resistance encountered by the workpiece during rotation, improve the stability of the workpiece during rotation, prevent the workpiece from being subjected to friction and deflection during rotation, and improve the positioning accuracy of the workpiece.

[0043] Embodiment 2:

[0044] A high-precision high-frequency heat treatment equipment, such as Figure 4 and Figure 5 As shown, the difference between the embodiment 1 and the embodiment 1 is that the pressure head device 23 includes a cooling block 41 and a pressure head sleeve 43. The cooling block 41 is slidably connected with the pressure head sleeve 43 in the direction close to the positioning block 17. An elastic member 51 is provided between the pressure head sleeve 43 and the cooling block 41. The elastic member 51 is a compression spring whose two ends are respectively fixedly connected to the pressure head sleeve 43 and the cooling block 41. The cooling block 41 is provided with a cooling assembly, which includes a cooling water tank 44, a cooling pump 45 and a cooling pipe 46. The cooling pipe 46 is made of heat-resistant material. Water is stored in the cooling water tank 44. The cooling pump 45 is connected to the cooling water tank 44. The two ends of the cooling pipe 46 are respectively connected to the cooling pump 45 and the cooling water tank 44. The cooling block 41 is provided with a first cooling hole 42. The cooling pipe 46 is connected to the first cooling hole 42. The mounting frame 21 includes a mounting plate 49 and a cooling plate 47. The mounting plate 49 is connected to the sliding frame 12. Both ends of the cooling plate 47 are fixedly connected to the positioning cylinder 22 and the mounting plate 49 respectively. The cooling plate 47 is provided with a second cooling hole 48. The cooling pipe 46 is connected to the second cooling hole 48. The first cooling hole 42 and the second cooling hole 48 are connected in series to the cooling pipe 46.

[0045] The limit block 16 is fixedly connected to a guide rod 52 that does not contact the sliding frame 12. The guide rod 52 is slidably connected to a buffer block 53 that abuts the sliding frame 12. A buffer spring 54 is provided between the buffer block 53 and the limit block 16. The two ends of the buffer spring 54 are fixedly connected to the buffer block 53 and the limit block 16 respectively.

[0046] This embodiment has the following advantages:

[0047] When the positioning block 17 drives the workpiece to rotate, the pressure head cover 43 can rotate to adapt to the rotation of the workpiece, reduce the resistance encountered by the workpiece during rotation, improve the stability of the workpiece during rotation, prevent the workpiece from being subjected to friction and deflection during rotation, and improve the positioning accuracy of the workpiece.

[0048] During the process of heating the workpiece, the heat is transferred to the cooling block 41 through the pressure head cover 43 , and the cooling block 41 is cooled by the cooling component, which can prevent the positioning cylinder 22 from overheating and play an effect of protecting the positioning cylinder 22 .

[0049] The water in the cooling water tank 44 is injected into the first cooling hole 42 through the cooling pipe 46 by a water pump, and then flows into the cooling water tank 44 through the cooling pipe 46, so that the cooling block 41 can be cooled by water, thereby achieving the effect of lowering the temperature of the cooling block 41, preventing the cooling block 41 and the top rod of the positioning cylinder 22 from overheating, thereby achieving the effect of protecting the positioning cylinder 22.

[0050] The water in the cooling water tank 44 is injected into the second cooling hole 48 through the cooling pipe 46 by a water pump, and then flows into the cooling water tank 44 through the cooling pipe 46, so that the cooling plate 47 can be cooled by water, thereby achieving the effect of lowering the temperature of the cooling plate 47, preventing the cooling block 41 and the piston barrel of the positioning cylinder 22 from overheating, thereby achieving the effect of protecting the positioning cylinder 22.

[0051] After the pressure head cover 43 and the positioning block 17 clamp the workpiece, the high frequency heater 13 heats the workpiece, causing the workpiece temperature to rise, and the workpiece expands to a certain extent. By arranging a compression spring between the pressure head cover 43 and the positioning block 17, the pressure head cover 43 can adapt to the thermal expansion of the workpiece, and the pressure head cover 43 and the workpiece can be pressed by the compression spring, so that the workpiece can remain stable and can protect the deformation of the workpiece.

[0052] When the sliding frame 12 slides on the frame 11, the sliding frame 12 abuts against the buffer block 53, and the buffer block 53 and the sliding frame 12 are supported by the buffer spring 54, which can provide a buffering effect on the movement of the sliding frame 12 and reduce the shaking of the workpiece during the movement of the sliding frame 12, thereby preventing the workpiece from colliding with the contoured coil 18, thereby protecting the coil, workpiece and equipment.

[0053] An element is considered to be "connected" to another element. It can be directly connected to another element or there may be an intermediate element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements. It can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0054] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental work, which all fall within the scope of protection of the present invention.

Claims

1. A high-precision high-frequency heat treatment equipment, characterized in that: The invention comprises a frame (11), a sliding frame (12) and a high-frequency heater (13), wherein the sliding frame (12) is slidably connected to the frame (11), the sliding frame (12) is rotatably connected to a positioning block (17), the sliding frame (12) is installed with a mounting frame (21), a positioning cylinder (22) is fixedly installed on the mounting frame (21), a pressing head device (23) is installed on the top rod of the positioning cylinder (22), and the pressing head device (23) is located between the positioning cylinder (22) and the positioning block (17), and a translation driving member (14) is provided between the sliding frame (12) and the frame (11). A non-contact displacement sensor (15) is provided between the frame (11) and the sliding frame (12), and the non-contact displacement sensor (15) extends along the direction in which the sliding frame (12) slides on the frame (11), and the non-contact displacement sensor (15) is fixedly mounted on the frame (11); the mounting frame (21) is slidably connected to the sliding frame (12) in a direction close to the positioning block (17), and the sliding frame (12) is threadedly connected with a screw rod (24), and the screw rod (24) is rotatably connected to the mounting frame (21) and axially clamped; the pressure head device (23) is connected to the positioning cylinder ( 22) a rotatably connected pressure head block, the side of the pressure head block close to the positioning block (17) is in an arc shape; the pressure head device (23) comprises a cooling block (41) and a pressure head sleeve (43), the cooling block (41) is slidably connected to the pressure head sleeve (43) in a direction close to the positioning block (17), an elastic member (51) is provided between the pressure head sleeve (43) and the cooling block (41), and the cooling block (41) is provided with a cooling assembly; the cooling assembly comprises a cooling water tank (44), a cooling pump (45) and a cooling pipe (46), the cooling pump (45) is connected to the cooling water tank (44), the cooling The two ends of the cooling pipe (46) are respectively connected to the cooling pump (45) and the cooling water tank (44); the cooling block (41) is provided with a first cooling hole (42); the cooling pipe (46) is connected to the first cooling hole (42); the mounting frame (21) comprises a mounting plate (49) and a cooling plate (47); the mounting plate (49) is connected to the frame (11); the two ends of the cooling plate (47) are respectively fixedly connected to the positioning cylinder (22) and the mounting plate (49); the cooling plate (47) is provided with a second cooling hole (48); the cooling pipe (46) is connected to the second cooling hole (48).

2. A high-precision high-frequency heat treatment equipment according to claim 1, characterized in that: The sliding frame (12) is fixedly mounted with a servo motor (31), the output shaft of the servo motor (31) is fixedly connected with a driving pulley (32), the positioning block (17) is fixedly connected with a driven pulley (33), and a transmission belt (34) is wound between the driving pulley (32) and the driven pulley (33).

3. A high-precision high-frequency heat treatment equipment according to claim 2, characterized in that: It also includes a control module (35) and a drive module (36), wherein the non-contact displacement sensor (15) is electrically connected to the control module (35), and the drive module (36) is electrically connected to the control module (35) and the servo motor (31) respectively.

4. The high-precision high-frequency heat treatment equipment according to claim 1, characterized in that: The translation driving member (14) is a driving cylinder whose two ends are respectively fixedly connected to the sliding frame (12) and the frame (11).

5. The high-precision high-frequency heat treatment equipment according to claim 1, characterized in that: The frame (11) is fixedly connected with a limit block (16) which is clamped with the sliding frame (12).

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