A quenching production line for quenching cam plates

Abstract

The present application discloses a quenching production line for quenching cam plates, which includes a quenching device movably arranged above a processing turntable. The quenching device includes a quencher and a cooler. The quencher is adapted to move to a processing station and heat the cam plate at the processing station, and the cooler is adapted to move to the processing station and cool the cam plate at the processing station. Among them, both the quencher and the cooler are annular structures, the quencher and the cooler are coaxially joined, the quencher is located above the cooler, and the quencher and the cooler are adapted to sequentially pass around the circumference of the cam plate at the processing station. A plurality of water outlet holes are formed in the inner circumferential side of the cooler along the axial direction and the circumferential direction of the cooler, and the water outlet holes are adapted to discharge water towards the axis direction of the cooler. The upper part of the inner circumferential side of the cooler is bent towards the axis direction of the cooler, so that the water outlet holes in the upper part of the inner circumferential side of the cooler discharge water towards the direction close to the center of the cooler. The present application has the characteristics of high processing efficiency.

Description

Technical Field

[0001] This application relates to the technical field of heat treatment, and particularly to a quenching production line for quenching cam plates. Background Art

[0002] Quenching is a heat treatment process. The quenching of steel is to heat the steel to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), hold for a period of time to fully or partially austenitize it, and then rapidly cool it at a cooling rate greater than the critical cooling rate to below Ms (or isothermally near Ms) for martensite (or bainite) transformation. Usually, the solution treatment of materials such as aluminum alloys, copper alloys, titanium alloys, and tempered glass, or the heat treatment process with a rapid cooling process, is also called quenching.

[0003] With the continuous development of China's automobile manufacturing industry, the manufacturing process requirements for some shaft and gear parts that affect the overall performance of the machine are getting higher and higher. Especially for some precision shaft and gear parts with high wear resistance requirements, such as cam plates on automobile engine camshafts, the quality of their quenched hardened layers has an important impact on the mechanical properties and service life of the engine.

[0004] However, the existing heat treatment process has the following defects: In the current processing process, usually only a single processing station is used for processing, and the operating efficiency of loading and unloading the product and quenching is low. The production beats of each operation are not effectively connected and utilized, which may affect the processing efficiency and production quality of the product and is difficult to meet the processing requirements of large quantities of parts. Summary of the Invention

[0005] An object of this application is to provide a quenching production line for quenching cam plates with high processing efficiency and high production quality.

[0006] To achieve the above object, the technical solution adopted in this application is: A quenching production line for quenching cam plates, comprising:

[0007] A processing turntable, which is provided with a plurality of processing stations along the circumferential direction. The processing turntable is adapted to rotate so that the processing stations sequentially pass through a loading device, a quenching device, a cooling device, and an unloading device;

[0008] A loading device, including a loading table and a transfer robot. The loading table is provided with a plurality of placement stations, and the placement stations are adapted to stack and place cam plates. The transfer robot is adapted to grab at least one cam plate on the placement station and convey it to the processing station;

[0009] An unloading device, including an unloading table and a transfer robot. The transfer robot is adapted to grab the cam plate on the processing station and place it on the unloading table for discharging;

[0010] Quenching device, the quenching device is movably arranged above the processing turntable, the quenching device includes a quencher and a cooler, the quencher is adapted to move to the processing station and heat the cam plate at the processing station, and the cooler is adapted to move to the processing station and cool the cam plate at the processing station;

[0011] Cooling device, the cooling device is adapted to spray liquid for cooling on the cam plate at the processing station;

[0012] Wherein, both the quencher and the cooler are annular structures, the quencher and the cooler are coaxially joined, the quencher is located above the cooler, the quencher and the cooler are adapted to sequentially pass around the circumference of the cam plate at the processing station, and a plurality of water outlet holes are provided on the inner circumferential side of the cooler along the axial direction and the circumferential direction of the cooler, and the water outlet holes are adapted to discharge water towards the axial center direction of the cooler, and the upper part of the inner circumferential side of the cooler is bent towards the axial center direction of the cooler, so that the water outlet holes on the upper part of the inner circumferential side of the cooler discharge water towards the direction close to the center of the cooler.

[0013] In some embodiments, the lower part of the inner circumferential side of the cooler is bent towards the axial center direction of the cooler, so that the water outlet holes on the lower part of the inner circumferential side of the cooler discharge water towards the direction close to the center of the cooler; the curvature of the upper part of the inner circumferential side of the cooler is greater than the curvature of the lower part of the inner circumferential side of the cooler; the lower port diameter of the quencher is not greater than the upper port diameter of the cooler.

[0014] In some embodiments, the loading device includes a first driving device, the placing stations are evenly arranged along the circumference of the loading table, the first driving device is adapted to rotate the placing stations along the circumference of the loading table, the processing turntable is provided with a second driving device, the processing stations are evenly arranged along the circumference of the processing turntable, the number of the placing stations is X times the number of the processing stations, and the distance between the processing centers of adjacent processing stations is equal to the distance between the placing centers of the placing stations separated by X - 1 intervals.

[0015] In some embodiments, placing rods are arranged on the placing stations, and the cam plates are adapted to be stacked along the axial direction of the placing rods. The transfer robot includes a transfer fixture, and through channels and chucks are arranged on the transfer fixture. The diameter of the through channels is not less than the diameter of the placing rods, and the placing rods are adapted to pass through the through channels along the axial direction. The chucks are located on the circumferential side of the through channels, and the chucks are adapted to approach or move away from each other along the radial direction of the through channels.

[0016] In some embodiments, a processing shaft seat is provided on the processing station. The cam plate is adapted to be axially sleeved on the processing shaft seat. A movable ventilation sleeve is provided on the transfer fixture. The through-channel is arranged in the ventilation sleeve. The diameter of the processing shaft seat is larger than the caliber of the through-channel. The diameter of the processing shaft seat is smaller than the outer diameter of the ventilation sleeve. The diameter of the processing shaft seat is not larger than the inner diameter of the cam plate. A first air flow channel is formed on the outer peripheral side of the ventilation sleeve. When the transfer robot clamps the cam plate at the outlet, the ventilation sleeve is adapted to abut against the cam plate and move relative to the transfer fixture to open the first air flow channel.

[0017] In some embodiments, a connecting sleeve is provided on the transfer fixture. The ventilation sleeve is nested in the connecting sleeve. A second air flow channel is formed on the connecting sleeve. When the ventilation sleeve abuts against the cam plate, the first air flow channel is adapted to communicate with the second air flow channel. The inner diameter of the first air flow channel is smaller than the inner diameter of the cam plate. A third air flow channel is formed at one end of the connecting sleeve close to the chuck. When the ventilation sleeve abuts against the cam plate, the first air flow channel is adapted to communicate the second air flow channel and the third air flow channel. The outer diameter of the third air flow channel is larger than the inner diameter of the cam plate. The ventilation sleeve protrudes from the connecting sleeve so that a gap is adapted to be formed between the third air flow channel and the cam plate.

[0018] In some embodiments, the transfer robot includes a manipulator. The manipulator is movably connected to the transfer fixture. The chuck and the manipulator are respectively arranged on two sides of the transfer fixture. A weight-reducing hole is formed in the transfer fixture between the through-channel and the manipulator. The chuck is adapted to arrange a driving circuit on one side close to the weight-reducing hole. The driving circuit is adapted to pass through the weight-reducing hole and lead to the manipulator.

[0019] In some embodiments, a processing shaft seat is provided on the processing station. The processing shaft seat is connected to a second driving device. The second driving device is adapted to make the processing shaft seat rotate around its axis. At least one ejecting portion is arranged on the processing shaft seat in the radial direction. The ejecting portion is adapted to move in the radial direction of the processing shaft seat and extend or retract on the circumferential side of the processing shaft seat. The ejecting portion is adapted to abut against the cam plate to prevent the cam plate from detaching from the processing shaft seat.

[0020] In some embodiments, the blanking device further includes a drying mechanism and a storage box. A conveyor belt is arranged on the blanking table. The transfer robot is adapted to place the cam plate on the conveyor belt. The conveyor belt is adapted to guide the cam plate to fall into the storage box. The drying mechanism includes a blower and an air outlet. The blower is connected to the air outlet. The air outlet is located above the drying mechanism and / or the storage box. The air outlet is adapted to blow air in the vertical direction.

[0021] In some embodiments, the assembly line further includes a circulation device. Drainage openings are provided around the processing turntable. The circulation device is connected to the drainage openings, the cooler, and the temperature reduction device. A purifier is provided in the circulation device, and the purifier is adapted to purify the liquid flowing out of the drainage openings. A water baffle is provided on the processing turntable, and the water baffle is arranged on the peripheries of the quenching device and the temperature reduction device. The temperature reduction device includes a spray head, and a plurality of water outlet holes are provided on the spray head.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows:

[0023] 1. The quenching assembly line for quenching cam plates of the present application realizes seamless transfer between the loading device, the quenching device, the temperature reduction device, and the unloading device through the processing turntable, improves the production speed, and optimizes the station layout between the quenching device and the loading table, so that while the production efficiency is improved, the capacity of the loading table is greatly increased, saving space. In addition, the quenching device can achieve efficient quenching through the quenching structure and improve the production quality of products.

[0024] 2. The quenching assembly line for quenching cam plates of the present application optimizes the structure of the transfer fixture, enabling the transfer fixture to accurately and stably clamp the materials on the loading table. At the same time, the transfer fixture can also pre-blow the surface liquid of the product during the product discharging process, thereby improving the speed of subsequent processing of the product and achieving more efficient processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an overall schematic view of the assembly line according to a preferred embodiment of the present application.

[0026] Figure 2 is an arrangement schematic view of the processing turntable, the quenching device, and the temperature reduction device according to a preferred embodiment of the present application.

[0027] Figure 3 is an internal structure view of the quenching device according to a preferred embodiment of the present application.

[0028] Figure 4 is a structural schematic view of the loading table according to a preferred embodiment of the present application.

[0029] Figure 5 is a structural relationship schematic view of the processing turntable and the loading table according to a preferred embodiment of the present application.

[0030] Figure 6 is an overall structural view of the transfer robot according to a preferred embodiment of the present application.

[0031] Figure 7Schematic diagram of the loading clamping state according to a preferred embodiment of the present application.

[0032] Figure 8 Schematic diagram of the unloading clamping state according to a preferred embodiment of the present application.

[0033] Figure 9 is according to a preferred embodiment of the present application Figure 8 Enlarged view of location a in.

[0034] Figure 10 Structural view of the machining spindle base according to a preferred embodiment of the present application.

[0035] Figure 11 Structural view of the unloading table according to a preferred embodiment of the present application.

[0036] Figure 12 Schematic layout diagram of the drying mechanism according to a preferred embodiment of the present application.

[0037] In the figure: 1, machining turntable; 11, machining station; 111, machining spindle base; 1111, ejection part; 12, drain port; 13, water baffle; 2, loading device; 21, loading table; 211, placement station; 2111, placement rod; 22, first driving device; 3, unloading device; 31, unloading table; 32, drying mechanism; 321, fan; 322, air outlet; 33, storage box; 4, transfer robot; 41, transfer fixture; 411, ventilation sleeve; 4111, through channel; 4112, first air flow channel; 412, chuck; 413, connecting sleeve; 4131, second air flow channel; 4132, third air flow channel; 414, weight reduction hole; 42, manipulator; 5, quenching device; 51, quencher; 52, cooler; 6, temperature reduction device; 61, spray head; 7, cam plate. Detailed implementation manners

[0038] Next, in combination with the detailed implementation manners, the present application will be further described. It should be noted that, on the premise of no conflict, any combination can be formed among the following-described embodiments or technical features to form a new embodiment.

[0039] In the description of the present application, it should be noted that for orientation terms, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0040] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0041] The terms "comprising" and "having" in the description and claims of the present application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0042] The following further describes the present application with reference to the drawings:

[0043] As Figures 1 to 12 shown, the present application provides a quenching production line for quenching cam plates, including.

[0044] The processing turntable 1 is provided with a plurality of processing stations 11 along the circumferential direction. The processing turntable 1 is adapted to rotate so that the processing stations 11 sequentially pass through the feeding device 2, the quenching device 5, the cooling device 6, and the discharging device 3. The feeding device 2, the quenching device 5, the cooling device 6, and the discharging device 3 are arranged on the circumferential side of the processing turntable 1, which can improve the overall structural compactness, reduce the space occupation, and utilize the movement control of the processing turntable 1 for the processing stations 11, so that the cam plate 7 can gradually complete the entire production process. It can be understood that the more the number of processing stations 11, the shorter the idle time of each device, and the faster the production beat. Therefore, reasonably setting the number of processing stations 11 can enable each device to operate fully and improve the production efficiency.

[0045] The loading device 2 includes a loading table 21 and a transfer robot 4. Multiple placement stations 211 are provided on the loading table 21. The placement stations 211 are adapted to stack and place the cam plates 7. The transfer robot 4 is adapted to grasp at least one cam plate 7 on the placement stations 211 and convey it to the processing station 11. It can be understood that the more cam plates 7 the transfer robot 4 grasps, the shorter the loading time allocated to a single cam plate 7, thus improving the loading efficiency.

[0046] The unloading device 3 includes an unloading table 31 and a transfer robot 4. The transfer robot 4 is adapted to grasp at least one cam plate 7 on the processing station 11 and place it on the unloading table 31 for discharging. It can be understood that the more cam plates 7 the transfer robot 4 grasps, the shorter the unloading time allocated to a single cam plate 7, thus improving the unloading efficiency.

[0047] The quenching device 5 is movably arranged above the processing turntable 1. The quenching device 5 includes a quencher 51 and a cooler 52. The quencher 51 is adapted to move to the processing station 11 and heat the cam plate 7 on the processing station 11. The cooler 52 is adapted to move to the processing station 11 and cool the cam plate 7 on the processing station 11. It can improve the structural compactness, reduce the space occupation, meet the requirement of multi-station synchronous quenching, and effectively reduce the quenching interval, thus improving the quenching efficiency.

[0048] The cooling device 6 is adapted to spray liquid for cooling the cam plate 7 on the processing station 11. The cooling device 6 includes a spray head 61. A plurality of water outlet holes are provided on the spray head 61. The processing turntable 1 can rotate the processing station 11 to the front of the spray head 61 to cool the cam plate 7 on the processing station 11 and make the cam plate 7 return to normal temperature.

[0049] The circulation device. Drainage ports 12 are provided around the processing turntable 1. The circulation device is connected to the drainage ports 12, the cooler 52 and the cooling device 6. A purifier is arranged in the circulation device. The purifier is adapted to purify and filter the liquid flowing out from the drainage ports 12. Through the recycling of the waste water, it can reduce environmental pollution and resource waste and lower the long-term production cost.

[0050] As Figures 1 to 3 shown, both the quencher 51 and the cooler 52 are of annular structure. The quenching principle of the quencher 51 is induction quenching, which can quickly quench the cam plate 7 without contact. At the same time, the annular structure can also adapt to cam plates 7 of different specifications and sizes, improving the production versatility.

[0051] The quencher 51 and the cooler 52 are coaxially joined. The quencher 51 is located above the cooler 52. The quencher 51 and the cooler 52 are adapted to successively pass around the circumferential side of the cam plate 7 on the processing station 11. In this application, when the processing station 11 moves to the quenching device 5, the quencher 51 and the cooler 52 move to the circumferential side of the cam plate 7 on the processing station 11 and surround it by lifting and lowering in the vertical direction. When the quenching by the quencher 51 is completed and the quencher 51 rises away from the cam plate 7, the cooler 52 can move to the periphery of the cam plate 7 accordingly, thereby reducing the operation interval of quenching and improving the processing efficiency.

[0052] It can be understood that since the quenching operation is relatively time-consuming in the entire production line, the aforementioned method of integrating quenching and cooling reduces the operation interval of quenching, but there is still room for optimization in the cooling operation. By reasonably designing the height of the cooler 52, the cooler 52 can continuously spray liquid onto the cam plate 7 during the rising process until the cooler 52 moves upward away from the cam plate 7. Since the cooler 52 is in a continuous motion state during this process, the cooler 52 changes from the original start, stop motion, cooling, completion of cooling and restart, detachment to start, cooling, detachment, which can reduce the time wasted due to the movement of the cooler 52 while ensuring the cooling effect, thereby further improving the processing efficiency.

[0053] As Figure 3 In the embodiment shown, a plurality of water outlet holes are provided on the inner circumferential side of the cooler 52 along the axial and circumferential directions of the cooler 52. The water outlet holes are adapted to discharge water towards the axis direction of the cooler 52 to ensure that the liquid sprayed from the water outlet holes can completely cover the outer surface of the cam plate 7. The upper part of the inner circumferential side of the cooler 52 is bent towards the axis direction of the cooler 52 so that the water outlet holes on the upper part of the inner circumferential side of the cooler 52 discharge water towards the center direction of the cooler 52. Since the processing turntable 1 serves to receive the liquid, due to the bending design of the upper part of the inner circumferential side of the cooler 52, the spraying direction of the water column can be inclined downward to approach the processing turntable 1, reducing the upward splashing of the liquid and improving the cleanliness of the production line. Also, since the cam plate 7 is usually near the horizontal mid-section of the cooler 52 when the cooler 52 surrounds the circumferential side of the cam plate 7, the bending design of the upper part of the inner circumferential side of the cooler 52 can make the water column spray towards the upper surface of the cam plate 7, thereby improving the cooling effect and the utilization rate of the liquid.

[0054] As Figure 3 In the embodiment shown, the lower part of the inner circumferential side of the cooler 52 is bent towards the axis direction of the cooler 52 so that the water outlet holes on the lower part of the inner circumferential side of the cooler 52 discharge water towards the center direction of the cooler 52. Similarly, the bending design of the lower part of the inner circumferential side of the cooler 52 can make the water column spray obliquely towards the lower surface direction of the cam plate 7, thereby improving the cooling effect and the utilization rate of the liquid.

[0055] In Figure 3 the embodiment shown, the curvature of the upper part of the inner peripheral side of the cooler 52 is greater than the curvature of the lower part of the inner peripheral side of the cooler 52. Such a design can reduce the upward splashing of the liquid during the cooling process, thereby improving the cleanliness of the production line and minimizing the occurrence of faults in the electrical drive part of the quenching device 5, the loading device 2, the unloading device 3, etc. caused by the splashing liquid.

[0056] In Figure 3 the embodiment shown, the lower port diameter of the quencher 51 is not greater than the upper port diameter of the cooler 52, which can block the liquid splashing upward during the cooling process of the cooler 52 by the quencher 51 itself, thereby improving the cleanliness of the production line and minimizing the occurrence of faults in the electrical drive part of the quenching device 5, the loading device 2, the unloading device 3, etc. caused by the splashing liquid.

[0057] In Figure 4 and 5 the embodiment shown, the loading device 2 includes a first driving device 22. The placement stations 211 are uniformly arranged along the circumference of the loading table 21. The first driving device 22 is adapted to rotate the placement stations 211 along the circumference of the loading table 21. The processing turntable 1 is provided with a second driving device. The processing stations 11 are uniformly arranged along the circumference of the processing turntable 1. The number of the placement stations 211 is X times the number of the processing stations 11. The distance Z2 between the processing centers of adjacent processing stations 11 is equal to the distance Z2 between the placement centers of the placement stations 211 spaced X - 1 apart, so that the transfer robot 4 can stably pick up from the placement stations 211 spaced X - 1 apart and place them on the adjacent processing stations 11. X is an integer. The advantage of such a design is that since the volume of the cam disc 7 is small and the volume of the quenching device 5 is large, if the number of the placement stations 211 is the same as the number of the processing stations 11, the distance between the placement stations 211 will be much larger than the volume of the cam disc 7, resulting in waste of space. By increasing the number of the placement stations 211 and reasonably designing the interval between the placement stations 211, the total capacity of the loading table 21 can be improved, and the upper limit of the processing volume per batch can be increased.

[0058] In some embodiments, travel switches are adapted to be provided on the processing turntable 1 and the loading table 21 to identify and control the rotation strokes of the two.

[0059] In Figure 4 , 6In the embodiments shown in FIGS. 6 and 7, a placing rod 2111 is provided on the placing station 211. The cam plates 7 are adapted to be stacked axially along the placing rod 2111. The transfer robot 4 includes a transfer fixture 41. A through-channel 4111 and clamping heads 412 are provided on the transfer fixture 41. The caliber of the through-channel 4111 is not less than the diameter of the placing rod 2111. The placing rod 2111 is adapted to pass axially through the through-channel 4111. The clamping heads 412 are located on the circumferential side of the through-channel 4111. The clamping heads 412 are adapted to approach or move away from each other radially along the through-channel 4111. The placing rod 2111 can play a role in guiding and positioning the clamping process of the transfer fixture 41. After the transfer fixture 41 is docked with the placing rod 2111, it moves along the placing rod 2111 and clamps the cam plates 7 stacked on the placing rod 2111, which can greatly improve the clamping success rate and stability of the transfer fixture 41.

[0060] As Figure 1 , 7 , 8 and 9, on the processing station 11, a processing shaft seat 111 is provided. The transfer robot 4 is adapted to axially sleeved the cam plates 7 on the processing shaft seat 111. A movable ventilation sleeve 411 is provided on the transfer fixture 41. The through-channel 4111 is arranged in the ventilation sleeve 411. The diameter of the processing shaft seat 111 is larger than the caliber of the through-channel 4111. The diameter of the processing shaft seat 111 is smaller than the outer diameter of the ventilation sleeve 411. The diameter of the processing shaft seat 111 is not greater than the inner diameter of the cam plate 7. A first air flow channel 4112 is opened on the outer circumferential side of the ventilation sleeve 411. When the transfer robot 4 clamps the cam plate 7 for discharging, the ventilation sleeve 411 is adapted to abut against the cam plate 7 and move relative to the transfer fixture 41 to open the first air flow channel 4112. The first air flow channel 4112 can spray air flow on the surface of the cam plate 7. The first air flow channel 4112 is passively opened during discharging, which can quickly remove the liquid on the surface of the cam plate 7, thereby reducing the time required for subsequent processing steps of the cam plate 7 and improving the production efficiency.

[0061] It can be understood that by setting the size relationship among the diameter of the placing rod 2111, the diameter of the processing shaft seat 111, and the caliber of the through-channel 4111 of the ventilation sleeve 411, the ventilation sleeve 411 can not only smoothly pass through the placing rod 2111 for loading and clamping, but also abut against the processing shaft seat 111 to open the first air flow channel 4112. Without affecting the loading operation and the discharging operation, the liquid on the surface of the cam plate 7 can be removed in the discharging stage, reducing the time required for subsequent processing steps of the cam plate 7 and improving the production efficiency. Since the transfer robot 4 itself requires a certain operation time for the discharging operation, and the first air flow channel 4112 can make full use of this part of the operation time to remove the liquid, without occupying an additional production beat itself, and can also improve the production beat of subsequent processing, it has high practicability.

[0062] As shown in Figure 8 and 9 shown, specifically, a connecting sleeve 413 is provided on the transfer jig 41, and the ventilation sleeve 411 is nested in the connecting sleeve 413. A second air flow channel 4131 is formed in the connecting sleeve 413, and the second air flow channel 4131 is communicated with an external ventilation device. When the ventilation sleeve 411 abuts against the cam plate 7, the ventilation sleeve 411 stops moving. At this time, when the transfer jig 41 continues to descend, relative movement can occur between the connecting sleeve 413 and the ventilation sleeve 411, so that the first air flow channel 4112 is communicated with the second air flow channel 4131.

[0063] In some embodiments, an elastic reset member may be provided on the transfer jig 41 to move the ventilation sleeve 411 to help close the first air flow channel 4112, or the gravity of the ventilation sleeve 411 itself may be used to close the first air flow channel 4112.

[0064] In some embodiments, the inner diameter of the first air flow channel 4112 is smaller than the inner diameter of the cam plate 7, so that the first air flow channel 4112 can at least blow the liquid from the inner hole of the cam plate 7, improving the efficiency of the subsequent processing process.

[0065] As Figure 9 shown in the embodiment, a third air flow channel 4132 is formed at one end of the connecting sleeve 413 close to the chuck 412. When the ventilation sleeve 411 abuts against the cam plate 7, the first air flow channel 4112 is adapted to communicate the second air flow channel 4131 and the third air flow channel 4132. The outer diameter of the third air flow channel 4132 is larger than the inner diameter of the cam plate 7, and the third air flow channel 4132 can blow the liquid from the upper surface of the cam plate 7, improving the efficiency of the subsequent processing process.

[0066] To ensure the smoothness of the air outlet of the third air flow channel 4132, the ventilation sleeve 411 protrudes from the connecting sleeve 413 both before and after the movement process, so that a gap is adapted to be formed between the third air flow channel 4132 and the cam plate 7.

[0067] As Figures 6 to 8In the illustrated embodiment, the transfer robot 4 includes a manipulator 42, and the manipulator 42 is movably connected to the transfer fixture 41. In the present application, the manipulator 42 and the transfer fixture 41 are rotatably connected, and the chuck 412 and the manipulator 42 are respectively arranged on both sides of the transfer fixture 41. The transfer fixture 41 is provided with a weight-reducing hole 414 between the through-channel 4111 and the manipulator 42. The chuck 412 is suitable for arranging a drive circuit on the side close to the weight-reducing hole 414, and the drive circuit is suitable for passing through the weight-reducing hole 414 and guiding to the manipulator 42. The weight-reducing hole 414 can not only reduce the weight of the transfer fixture 41, but also play the role of guiding the wire, so that the wire avoids the through-channel 4111 and avoids the placement rod 2111 during the loading process, thereby reducing structural interference and improving the smoothness of loading.

[0068] In some embodiments, the robot 42 can control the transfer fixture 41 to move in a horizontal plane and to rise and fall in a vertical direction.

[0069] like Figure 7 and 8 In the illustrated embodiment, the second air flow channel 4131 is connected to an external ventilation device on the side of the transfer fixture 41 away from the weight reduction hole 414, so as to facilitate separate maintenance and arrangement of the driving circuit of the chuck 412 and the ventilation circuit of the second air flow channel 4131, thereby reducing the difficulty of maintenance.

[0070] In some embodiments, the second air flow channel 4131 is connected to an external ventilation device in the weight reduction hole 414, so that the drive circuit of the chuck 412 and the ventilation circuit of the second air flow channel 4131 can be combined and arranged to make the overall structure more compact.

[0071] In some embodiments, the processing shaft seat 111 is connected to a second driving device, and the second driving device is suitable for making the processing shaft seat 111 rotate along the axis. The second driving device can be respectively connected to the processing turntable 1 and the processing shaft seat 111 through the variable speed transmission structure in the prior art, so that the processing turntable 1 and the processing shaft seat 111 can be driven to rotate at different speeds and share a driving source, which can improve the overall structural compactness and reduce costs. In the present application, the rotation speed of the processing shaft seat 111 is set to 300 revolutions per minute, so that the cam plate 7 can obtain a better quenching effect and is not easily thrown out of the processing shaft seat 111.

[0072] like Figure 10 In the illustrated embodiment, the machining shaft seat 111 is radially provided with at least one pop-up portion 1111, and the pop-up portion 1111 is suitable for moving radially along the machining shaft seat 111, and extending or retracting on the circumferential side of the machining shaft seat 111, and the pop-up portion 1111 is suitable for extending and abutting against the inner circumferential side of the cam piece 7 to limit the cam piece 7 from separating from the machining shaft seat 111, and to make the cam piece 7 rotate with the machining shaft seat 111, thereby improving the quenching effect.

[0073] In some embodiments, the number of the pop-up portions 1111 is multiple, and the pop-up portions 1111 are uniformly arranged along the circumferential direction of the machining spindle base 111. The pop-up portions 1111 can help the cam plate 7 to be effectively fixed on the machining spindle base 111.

[0074] In some embodiments, the pop-up of the pop-up portions 1111 is realized by arranging an elastic reset member in the machining spindle base 111. Structures such as chamfers and rounded corners can be arranged at the outer ends of the pop-up portions 1111, so that when the cam plate 7 is loaded, the pop-up portions 1111 can be pressed to retract and abut against the inner circumferential side of the cam plate 7.

[0075] In some embodiments, the pop-up of the pop-up portions 1111 is realized by the centrifugal force generated by the rotation of the machining spindle base 111. Structures such as chamfers and rounded corners can be arranged at the outer ends of the pop-up portions 1111, so that when the cam plate 7 is loaded, the pop-up portions 1111 can be pressed to retract and abut against the inner circumferential side of the cam plate 7.

[0076] As Figure 11 and 12 shown in the embodiment, the blanking device 3 further includes a drying mechanism 32 and a storage box 33. A conveyor belt is arranged on the blanking table 31. The transfer robot 4 is adapted to place the cam plate 7 on the conveyor belt. The conveyor belt is adapted to guide the cam plate 7 to fall into the storage box 33. The drying mechanism 32 includes a blower 321 and an air outlet 322. The blower 321 is connected to the air outlet 322. The air outlet 322 is located above the drying mechanism 32 and / or the storage box 33. The air outlet 322 is adapted to blow air in the vertical direction, which can help dry the liquid on the surface of the cam plate 7 without affecting the blanking and discharging of the cam plate 7, so as to facilitate the subsequent processing process.

[0077] In some embodiments, the width of the air outlet 322 is not less than the width of the cam plate 7, and can completely cover the cam plate 7, ensuring that the entire surface of the cam plate 7 can be dried when the cam plate 7 passes by.

[0078] In some embodiments, a flow guide cover is arranged around the air outlet 322 for guiding the air flow to blow to the cam plate 7.

[0079] As Figure 1 shown in the embodiment, a water baffle 13 is arranged on the machining turntable 1. The water baffle 13 is arranged on the periphery of the quenching device 5 and the cooling device 6. The water baffle 13 is used to prevent the liquid from splashing to the transfer robot 4, reducing the probability of the transfer robot 4 malfunctioning due to water ingress.

[0080] As Figure 1In the illustrated embodiment, the connection positions of the quencher 51 and the cooler 52 to the external control device are covered with a flexible waterproof cloth. Using the flexible waterproof cloth can reduce the interference with the activities of the quencher 51 and the cooler 52. The flexible waterproof cloth is used to prevent liquid from splashing onto the external control device, reducing the probability of failure of the external control device due to water ingress.

[0081] The basic principles, main features, and advantages of the present application have been described above. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A quenching cam plate quenching line, characterized in that: include: A processing turntable, wherein a plurality of processing stations are arranged along the circumference of the processing turntable, and the processing turntable is suitable for rotating so that the processing stations pass through a loading device, a quenching device, a cooling device and a unloading device in sequence; A loading device, comprising a loading platform and a transfer robot, wherein a plurality of placement stations are arranged on the loading platform, wherein the placement stations are suitable for stacking and placing cam pieces, and the transfer robot is suitable for grabbing the cam piece on at least one of the placement stations and transporting it to the processing station; A material unloading device, comprising a material unloading platform and a transfer robot, wherein the transfer robot is suitable for grabbing the cam piece on the processing station and placing it on the material unloading platform for unloading; A quenching device, the quenching device is movably arranged above the processing turntable, the quenching device comprises a quencher and a cooler, the quencher is suitable for moving to the processing station and heating the cam sheet on the processing station, and the cooler is suitable for moving to the processing station and cooling the cam sheet on the processing station; A cooling device, the cooling device is suitable for spraying liquid to cool the cam piece on the processing station; Wherein, the quencher and the cooler are both annular structures, the quencher and the cooler are coaxially connected, the quencher is located above the cooler, the quencher and the cooler are suitable for passing around the circumference of the cam sheet on the processing station in sequence, the inner circumference of the cooler is provided with a plurality of water outlet holes along the axial and circumferential directions of the cooler, the water outlet holes are suitable for discharging water in the axial direction of the cooler, and the upper part of the inner circumference of the cooler is bent in the axial direction of the cooler so that the water outlet holes in the upper part of the inner circumference of the cooler discharge water in a direction close to the center of the cooler; The processing station is provided with a processing shaft seat, the cam piece is suitable for being sleeved on the processing shaft seat along the axial direction, the transfer robot comprises a transfer fixture, the transfer fixture is provided with a chuck and a movable ventilation sleeve, a through-channel is provided in the ventilation sleeve, the diameter of the processing shaft seat is larger than the caliber of the through-channel, the diameter of the processing shaft seat is smaller than the outer diameter of the ventilation sleeve, the diameter of the processing shaft seat is not larger than the inner diameter of the cam piece, a first air flow channel is provided on the outer peripheral side of the ventilation sleeve, when the transfer robot unloads and clamps the cam piece, the ventilation sleeve is suitable for abutting against the cam piece and moving relative to the transfer fixture to open the first air flow channel; The transfer fixture is provided with a connecting sleeve, the ventilation sleeve is nested in the connecting sleeve, a second air flow channel is provided on the connecting sleeve, and when the ventilation sleeve abuts against the cam sheet, the first air flow channel is suitable for connecting with the second air flow channel; the inner diameter of the first air flow channel is smaller than the inner diameter of the cam sheet; a third air flow channel is provided at one end of the connecting sleeve close to the chuck, and when the ventilation sleeve abuts against the cam sheet, the first air flow channel is suitable for connecting with the second air flow channel and the third air flow channel, and the outer diameter of the third air flow channel is larger than the inner diameter of the cam sheet; the ventilation sleeve protrudes from the connecting sleeve, so that a gap is suitable for forming between the third air flow channel and the cam sheet; A placement rod is provided on the placement station, and the caliber of the through channel is not less than the diameter of the placement rod.

2. A quenching cam sheet quenching line as claimed in claim 1, characterized in that: The lower part of the inner circumference of the cooler is bent toward the axial direction of the cooler so that the water outlet hole at the lower part of the inner circumference of the cooler discharges water toward the center of the cooler; the curvature of the upper part of the inner circumference of the cooler is greater than the curvature of the lower part of the inner circumference of the cooler; the lower port diameter of the quencher is not greater than the upper port diameter of the cooler.

3. A quenching cam sheet quenching line as claimed in claim 1, characterized in that: The loading device includes a first driving device, the placement stations are evenly arranged along the circumference of the loading platform, the first driving device is suitable for causing the placement stations to rotate along the circumference of the loading platform, the processing turntable is provided with a second driving device, the quenching devices are evenly arranged along the circumference of the processing turntable, the number of the placement stations is X times the number of the quenching devices, and the distance between the machining centers of adjacent quenching devices is equal to the distance between the placement centers of the placement stations separated by X-1.

4. A quenching cam sheet quenching line as claimed in claim 1, characterized in that: The cam pieces are suitable for being stacked along the axial direction of the placement rod, the placement rod is suitable for passing through the through channel along the axial direction, the chucks are located on the peripheral side of the through channel, and the chucks are suitable for being close to or away from each other along the radial direction of the through channel.

5. A quenching cam sheet quenching line as claimed in claim 1, characterized in that: The transfer robot includes a manipulator, which is movably connected to the transfer fixture, and the chuck and the manipulator are respectively arranged on both sides of the transfer fixture. The transfer fixture is provided with a weight-reducing hole between the through channel and the manipulator, and the chuck is suitable for arranging a drive circuit on the side close to the weight-reducing hole, and the drive circuit is suitable for passing through the weight-reducing hole and being guided to the manipulator.

6. A quenching cam sheet quenching line as claimed in claim 3, characterized in that: A processing shaft seat is provided on the processing station, and the processing shaft seat is connected to the second driving device, and the second driving device is suitable for making the processing shaft seat rotate along the axis; the processing shaft seat is provided with at least one pop-up part in the radial direction, and the pop-up part is suitable for moving in the radial direction of the processing shaft seat and extending or retracting on the circumferential side of the processing shaft seat, and the pop-up part is suitable for abutting against the cam piece to limit the cam piece from separating from the processing shaft seat.

7. A quenching cam sheet quenching line as claimed in claim 1, characterized in that: The unloading device also includes a drying mechanism and a storage box. A conveyor belt is provided on the unloading table. The transfer robot is suitable for placing a cam sheet on the conveyor belt. The conveyor belt is suitable for guiding the cam sheet to fall into the storage box. The drying mechanism includes a fan and an air outlet. The fan is connected to the air outlet. The air outlet is located above the drying mechanism and / or the storage box. The air outlet is suitable for discharging air in a vertical direction.

8. A quenching cam sheet quenching line as claimed in claim 1, characterized in that: The assembly line further comprises a circulation device, the processing turntable is provided with drain ports around, the circulation device connects the drain ports, the cooler and the cooling device, a purifier is arranged in the circulation device, and the purifier is suitable for purifying the liquid flowing out of the drain ports; a water baffle is arranged on the processing turntable, and the water baffle is arranged around the quenching device and the cooling device; The cooling device comprises a spray head, and a plurality of water outlet holes are arranged on the spray head.

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