Quenching assembly line for quenching cam sheet

Abstract

The quenching assembly line comprises a quenching device, the quenching device is movably arranged above a machining rotary table, the quenching device comprises a quencher and a cooler, the quencher is suitable for moving to a machining station and heating a cam piece on the machining station, the cooler is suitable for moving to the machining station and heating the cam piece on the machining station, and the cooler is suitable for moving to the machining station and heating the cam piece on the machining station. The cam piece on the machining station is cooled; wherein the quencher and the cooler are both of an annular structure, the quencher and the cooler are coaxially connected, the quencher is located above the cooler, the quencher and the cooler are suitable for sequentially passing through the circumferential side of a cam piece on a machining station in a surrounding mode, and a plurality of water outlet holes are formed in the inner circumferential side of the cooler in the axial direction and the circumferential direction of the cooler. The water outlet holes are suitable for discharging water towards the axis direction of the cooler, the upper portion 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 portion of the inner circumferential side of the cooler discharge water towards the center direction of the cooler, and the machining method has the advantage of being high in machining efficiency.

Description

Technical Field

[0001] The present application relates to the field of heat treatment technology, and in particular to a quenching line for quenching cam plates. Background Art

[0002] Quenching is a heat treatment process. The quenching of steel is a heat treatment process in which the steel is heated to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), kept warm for a period of time to make it fully or partially austenitized, and then rapidly cooled to below Ms (or isothermally near Ms) at a cooling rate greater than the critical cooling rate to undergo martensite (or bainite) transformation. 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 usually called quenching.

[0003] With the continuous development of my country's automobile manufacturing industry, the manufacturing process requirements for some shaft and gear parts that affect the performance of the whole machine are becoming higher and higher, especially for some precision shaft and gear parts that require high wear resistance, such as the cam plates on the camshafts of automobile engines. The quality of the quenching hardened layer 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 operation efficiency of loading and unloading and quenching of the product is low, and the production rhythm of each operation is not effectively connected and utilized, which may affect the processing efficiency and production quality of the product, and it is difficult to meet the processing needs of large quantities of parts. Summary of the invention

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

[0006] In order to achieve the above purpose, the technical solution adopted in this application is: a quenching cam sheet quenching line, comprising: 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; Among them, 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 plate on the processing station in sequence, and the inner circumference of the cooler is provided with a plurality of water outlet holes along the axial and circumferential directions of the cooler, and 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.

[0007] In some embodiments, the lower portion 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 portion of the inner circumference of the cooler discharges water toward the center of the cooler; the curvature of the upper portion of the inner circumference of the cooler is greater than the curvature of the lower portion 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.

[0008] In some embodiments, the loading device includes a first driving device, the placement stations are evenly arranged along the circumference of the loading table, the first driving device is suitable for causing the placement stations to rotate 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 placement 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 placement centers of the placement stations separated by X-1.

[0009] In some embodiments, a placement rod is provided on the placement station, and the cam sheet is suitable for stacking along the axial direction of the placement rod. The transfer robot includes a transfer fixture, and the transfer fixture is provided with a through channel and a chuck. The caliber of the through channel is not less than the diameter of the placement rod. The placement rod is suitable for passing through the through channel along the axial direction. The chuck is located on the peripheral side of the through channel, and the chuck is suitable for approaching or moving away from each other along the radial direction of the through channel.

[0010] In some embodiments, a processing shaft seat is provided on the processing station, and the cam piece is suitable for being axially sleeved on the processing shaft seat, and a movable ventilation sleeve is provided on the transfer fixture, and the through channel is arranged in the ventilation sleeve, and the diameter of the processing shaft seat is larger than the caliber of the through channel, and the diameter of the processing shaft seat is smaller than the outer diameter of the ventilation sleeve, and the diameter of the processing shaft seat is not larger than the inner diameter of the cam piece. A first air flow channel is opened on the outer peripheral side of the ventilation sleeve, and when the transfer robot unloads and clamps the cam piece, the ventilation sleeve is suitable for reaching the cam piece and moving relative to the transfer fixture to open the first air flow channel.

[0011] In some embodiments, a connecting sleeve is provided on the transfer fixture, and the ventilation sleeve is nested in the connecting sleeve. A second air flow channel is opened on the connecting sleeve, and when the ventilation sleeve abuts against the cam piece, 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 piece; a third air flow channel is opened on the connecting sleeve near one end of the chuck, and when the ventilation sleeve abuts against the cam piece, 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 piece; 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 piece.

[0012] In some embodiments, 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, and 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.

[0013] In some embodiments, 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 portion in the radial direction, and the pop-up portion 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 portion is suitable for abutting against the cam piece to limit the cam piece from separating from the processing shaft seat.

[0014] In some embodiments, 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 the 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, and the air outlet is suitable for discharging air in a vertical direction.

[0015] In some embodiments, the assembly line also includes a circulation device, and drain outlets are opened around the processing turntable. The circulation device connects the drain outlet, 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 outlet; 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 includes a spray head, and a plurality of water outlets are arranged on the spray head.

[0016] Compared with the prior art, the beneficial effects of this application are: 1. The quenching cam sheet quenching line of the present application realizes seamless flow between the loading device, quenching device, cooling device and unloading device through a processing turntable, thereby improving the production speed. By optimizing the workstation layout between the quenching device and the loading table, the production efficiency is improved while greatly increasing the capacity of the loading table and saving space. In addition, the quenching device can achieve efficient quenching and improve the production quality of the product through the quenching structure.

[0017] 2. The quenching cam sheet quenching line of the present application optimizes the structure of the transfer fixture so that the transfer fixture can accurately and stably clamp the material on the loading table. At the same time, the transfer fixture can also pre-blow away the surface liquid of the product during the product discharging process, thereby increasing the speed of subsequent processing of the product and achieving more efficient processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of an assembly line according to a preferred embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the arrangement of a processing turntable, a quenching device and a cooling device according to a preferred embodiment of the present application.

[0020] Figure 3 This is a view of the internal structure of a quenching device according to a preferred embodiment of the present application.

[0021] Figure 4 It is a structural schematic diagram of a loading platform according to a preferred embodiment of the present application.

[0022] Figure 5 It is a schematic diagram of the structural relationship between a processing turntable and a loading table according to a preferred embodiment of the present application.

[0023] Figure 6 This is an overall structural view of a transfer robot according to a preferred embodiment of the present application.

[0024] Figure 7It is a schematic diagram of the loading and clamping state according to a preferred embodiment of the present application.

[0025] Figure 8 It is a schematic diagram of the material blanking and clamping state according to a preferred embodiment of the present application.

[0026] Fig. 9 According to a preferred embodiment of the present application Figure 8 Magnified view at point a.

[0027] Fig.10 This is a structural view of a machined shaft seat according to a preferred embodiment of the present application.

[0028] Fig.11 This is a structural view of a material unloading table according to a preferred embodiment of the present application.

[0029] Fig.12 It is a schematic diagram of the arrangement of a drying mechanism according to a preferred embodiment of the present application.

[0030] In the figure: 1. processing turntable; 11. processing station; 111. processing shaft seat; 1111. pop-up part; 12. drain outlet; 13. water baffle; 2. loading device; 21. loading platform; 211. placement station; 2111. placement rod; 22. first driving device; 3. unloading device; 31. unloading platform; 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. cooling device; 61. spray head; 7. cam piece. DETAILED DESCRIPTION

[0031] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0033] 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 are not necessarily used to describe a specific order or sequence.

[0034] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0035] The present application is further described below with reference to the accompanying drawings: like Figures 1 to 12 As shown, the present application provides a quenching line for quenching cam plates, including.

[0036] A processing turntable 1 is provided with a plurality of processing stations 11 along the circumferential direction. The processing turntable 1 is suitable for rotation so that the processing station 11 passes through the loading device 2, the quenching device 5, the cooling device 6 and the unloading device 3 in sequence. The loading device 2, the quenching device 5, the cooling device 6 and the unloading device 3 are arranged on the circumferential side of the processing turntable 1, which can improve the overall structural compactness and reduce space occupancy. The processing turntable 1 controls the movement of the processing station 11 so that the cam piece 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 rhythm. Therefore, a reasonable setting of the number of processing stations 11 can enable each device to fully operate and improve production efficiency.

[0037] The loading device 2 includes a loading table 21 and a transfer robot 4. A plurality of placement stations 211 are provided on the loading table 21. The placement station 211 is suitable for stacking and placing the cam pieces 7. The transfer robot 4 is suitable for grabbing the cam pieces 7 on at least one of the placement stations 211 and conveying them to the processing station 11. It can be understood that the more cam pieces 7 the transfer robot 4 grabs, the shorter the loading time allocated to a single cam piece 7, thereby improving the loading efficiency.

[0038] The unloading device 3 includes an unloading table 31 and a transfer robot 4. The transfer robot 4 is suitable for grabbing the cam piece 7 on at least one processing station 11 and placing it on the unloading table 31 for unloading. It can be understood that the more cam pieces 7 the transfer robot 4 grabs, the shorter the unloading time allocated to a single cam piece 7, thereby improving the unloading efficiency.

[0039] 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 suitable for moving to the processing station 11 and heating the cam plate 7 on the processing station 11. The cooler 52 is suitable for moving to the processing station 11 and cooling the cam plate 7 on the processing station 11. It can improve the compactness of the structure and reduce the space occupied to meet the needs of synchronous quenching of multiple stations, and effectively reduce the quenching interval, thereby improving the quenching efficiency.

[0040] The cooling device 6 is suitable for spraying liquid to cool the cam piece 7 on the processing station 11. The cooling device 6 includes a spray head 61, and 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 piece 7 on the processing station 11 and restore the cam piece 7 to normal temperature.

[0041] A circulation device is provided with drain outlets 12 around the processing turntable 1. The circulation device connects the drain outlet 12, the cooler 52 and the cooling device 6. A purifier is arranged in the circulation device. The purifier is suitable for purifying and filtering the liquid flowing out of the drain outlet 12. By recycling the waste water, environmental pollution and resource waste can be reduced, and long-term production costs can be reduced.

[0042] like Figures 1 to 3 As shown, the quencher 51 and the cooler 52 are both annular structures. The quenching principle of the quencher 51 is induction quenching, which can quickly quench the cam piece 7 without contact. At the same time, the annular structure can also adapt to cam pieces 7 of different specifications and sizes, thereby improving production versatility.

[0043] The quencher 51 and the cooler 52 are coaxially connected, and the quencher 51 is located above the cooler 52. The quencher 51 and the cooler 52 are suitable for passing around the circumference of the cam piece 7 on the processing station 11 in sequence. In the present application, when the processing station 11 moves to the quenching device 5, the quencher 51 and the cooler 52 are moved to the circumference of the cam piece 7 on the processing station 11 by lifting and lowering in the vertical direction and surround it. After the quencher 51 completes quenching, the cooler 52 can move to the circumference of the cam piece 7 as the quencher 51 rises away from the cam piece 7, thereby reducing the quenching operation interval and improving the processing efficiency.

[0044] It is understandable that since the quenching operation is relatively time-consuming in the entire assembly line, the aforementioned method of integrating quenching and cooling can reduce the quenching operation interval, but the cooling operation still has room for optimization. The height of the cooler 52 can be reasonably designed so that the cooler 52 can continue to spray liquid onto the cam plate 7 during the rising process until the cooler 52 is upwardly separated 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, cool, restart after cooling, and separation to start, cool, and separate. This can reduce the time waste caused by the activity of the cooler 52 while ensuring the cooling effect, thereby further improving the processing efficiency.

[0045] like Figure 3 In the illustrated embodiment, a plurality of water outlet holes are provided on the inner circumference of the cooler 52 along the axial and circumferential directions of the cooler 52. The water outlet holes are suitable for discharging water in the axial direction of the cooler 52 to ensure that the liquid sprayed out of the water outlet holes can completely cover the outer surface of the cam piece 7. The upper portion of the inner circumference of the cooler 52 is bent in the axial direction of the cooler 52 so that the water outlet holes in the upper portion of the inner circumference of the cooler 52 can discharge water in a direction close to the center of the cooler 52. Since the processing turntable 1 plays a role in receiving liquid, the upper curved design of the inner circumference of the cooler 52 can make the spray direction of the water column tilt downward to be close to the processing turntable 1, thereby reducing liquid splashing upward and improving the cleanliness of the assembly line. Furthermore, since the cooler 52 surrounds the circumference of the cam piece 7, the cam piece 7 is usually located near the horizontal mid-section of the cooler 52. The upper curved design of the inner circumference of the cooler 52 can make the water column spray toward the upper surface of the cam piece 7, thereby improving the cooling effect and improving the utilization rate of the liquid.

[0046] like Figure 3 In the illustrated embodiment, the lower portion of the inner circumference of the cooler 52 is bent toward the axial direction of the cooler 52 so that the water outlet holes at the lower portion of the inner circumference of the cooler 52 discharge water toward the center of the cooler 52. Similarly, the lower curved design of the inner circumference of the cooler 52 enables the water column to be sprayed obliquely toward the lower surface of the cam piece 7, thereby improving the cooling effect and improving the utilization rate of the liquid.

[0047] like Figure 3 In the illustrated embodiment, the curvature of the upper portion of the inner circumference of the cooler 52 is greater than the curvature of the lower portion of the inner circumference of the cooler 52. This design can reduce the upward splashing of liquid during the cooling process, thereby improving the cleanliness of the assembly line and minimizing the occurrence of malfunctions in the electrical drive part of the quenching device 5, the loading device 2, the unloading device 3, etc. caused by splashing liquid.

[0048] like Figure 3 In the illustrated embodiment, the diameter of the lower port of the quencher 51 is not larger than the diameter of the upper port of the cooler 52, and the quencher 51 itself can block the liquid splashing upward during the cooling process of the cooler 52, thereby improving the cleanliness of the assembly line and minimizing the occurrence of malfunctions in the electrical drive part of the quenching device 5, the loading device 2, the unloading device 3, etc. caused by the splashing liquid.

[0049] like Figure 4 and 5 In the illustrated embodiment, the loading device 2 includes a first driving device 22, the placement stations 211 are evenly arranged along the circumference of the loading platform 21, the first driving device 22 is suitable for rotating the placement stations 211 along the circumference of the loading platform 21, the processing turntable 1 is provided with a second driving device, the processing stations 11 are evenly 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 The materials are stably picked up from the placement stations 211 at intervals of X-1 and placed on the adjacent processing station 11, where X is an integer. The advantage of such a design is that, since the volume of the cam piece 7 is relatively small and the volume of the quenching device 5 is relatively large, if the number of the placement stations 211 is the same as the number of the processing stations 11, the spacing between the placement stations 211 will be much larger than the volume of the cam piece 7, resulting in a waste of space. By increasing the number of the placement stations 211 and reasonably designing the spacing between the placement stations 211, the total capacity of the loading table 21 can be increased, thereby increasing the upper limit of the volume of a single batch of processing.

[0050] In some embodiments, travel switches are provided on the processing turntable 1 and the loading table 21 to identify and control the rotation travel of the two.

[0051] like Figure 4 , 6In the embodiment shown in 7, a placing rod 2111 is provided on the placing station 211, and the cam piece 7 is suitable for axial stacking along the placing rod 2111. The transfer robot 4 includes a transfer fixture 41, and the transfer fixture 41 is provided with a through channel 4111 and a chuck 412. The caliber of the through channel 4111 is not less than the diameter of the placing rod 2111. The placing rod 2111 is suitable for axially passing through the through channel 4111, and the chuck 412 is located on the circumferential side of the through channel 4111. The chuck 412 is suitable for approaching or moving away from each other along the radial direction of the through channel 4111. The placing rod 2111 can guide and position 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 piece 7 stacked on the placing rod 2111, which can greatly improve the clamping success rate and stability of the transfer fixture 41.

[0052] like Figure 1 , 7 In the embodiments shown in , 8 and 9, a processing shaft seat 111 is provided on the processing station 11, the transfer robot 4 is suitable for sleeve-placing the cam piece 7 on the processing shaft seat 111 along the axial direction, a movable ventilation sleeve 411 is provided on the transfer fixture 41, a through channel 4111 is provided in the ventilation sleeve 411, a diameter of the processing shaft seat 111 is larger than a diameter of the through channel 4111, a diameter of the processing shaft seat 111 is smaller than an outer diameter of the ventilation sleeve 411, a diameter of the processing shaft seat 111 is not larger than an inner diameter of the cam piece 7, and a ventilation sleeve 411 is provided in the transfer fixture 41. A first air flow channel 4112 is provided on the outer peripheral side of the sleeve 411. When the transfer robot 4 unloads and clamps the cam piece 7, the ventilation sleeve 411 is suitable for reaching the cam piece 7 and moving relative to the transfer fixture 41 to open the first air flow channel 4112. The first air flow channel 4112 can spray air flow to the surface of the cam piece 7. The first air flow channel 4112 is passively opened during unloading, and can quickly remove liquid on the surface of the cam piece 7, thereby reducing the time required for subsequent processing steps of the cam piece 7 and improving production efficiency.

[0053] It can be understood that, by setting the size relationship between the diameter of the placement 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 placement rod 2111 for loading and clamping, but also abut with the processing shaft seat 111 to open the first air flow channel 4112. Without affecting the loading and unloading operations, the liquid on the surface of the cam piece 7 is removed during the unloading stage, reducing the time required for the subsequent processing steps of the cam piece 7 and improving production efficiency. Since the transfer robot 4 itself requires a certain amount of operation time when performing the unloading operation, the first air flow channel 4112 can make full use of this part of the operation time to remove the liquid, does not occupy additional production rhythm itself, and can also improve the production rhythm of subsequent processing, and has high practicality.

[0054] like Figure 8 and 9 As shown, specifically, a connecting sleeve 413 is provided on the transfer fixture 41, and the ventilation sleeve 411 is nested in the connecting sleeve 413. A second air flow channel 4131 is opened on the connecting sleeve 413, and the second air flow channel 4131 is connected with an external ventilation device. When the ventilation sleeve 411 abuts against the cam piece 7, the ventilation sleeve 411 stops moving. At this time, the transfer fixture 41 continues to descend, and the connecting sleeve 413 can move relative to the ventilation sleeve 411, so that the first air flow channel 4112 is connected with the second air flow channel 4131.

[0055] In some embodiments, an elastic reset member may be provided on the transfer fixture 41 to enable the ventilation sleeve 411 to move, thereby helping to 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 .

[0056] In some embodiments, the inner diameter of the first airflow channel 4112 is smaller than the inner diameter of the cam plate 7, so that the first airflow channel 4112 can at least blow away the liquid from the inner hole of the cam plate 7, thereby improving the efficiency of subsequent processing procedures.

[0057] like Fig. 9 In the shown embodiment, a third air flow channel 4132 is provided at one end of the connecting sleeve 413 near the chuck 412. When the ventilation sleeve 411 abuts against the cam piece 7, the first air flow channel 4112 is suitable for connecting 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 piece 7. The third air flow channel 4132 can blow away the liquid on the upper surface of the cam piece 7, thereby improving the efficiency of the subsequent processing flow.

[0058] To ensure smooth air flow from the third air flow channel 4132 , the ventilation sleeve 411 protrudes from the connecting sleeve 413 before and after the movement process, so that a gap is formed between the third air flow channel 4132 and the cam plate 7 .

[0059] like 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] like Fig.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.

[0065] In some embodiments, there are multiple pop-up parts 1111 , and the pop-up parts 1111 are evenly arranged along the circumference of the processing shaft seat 111 . The pop-up parts 1111 can help the cam piece 7 to be effectively fixed on the processing shaft seat 111 .

[0066] In some embodiments, the pop-up portion 1111 can be popped out by setting an elastic reset member in the processing shaft seat 111, and structures such as chamfers and rounded corners can be set at the outer end of the pop-up portion 1111, so that the pop-up portion 1111 can be pressed back and pressed against the inner side of the cam piece 7 when the cam piece 7 is loaded.

[0067] In some embodiments, the pop-up portion 1111 is ejected by centrifugal force generated by the rotation of the machining shaft seat 111, and structures such as chamfers and rounded corners can be set at the outer end of the pop-up portion 1111, so that the pop-up portion 1111 can be pressed back and pressed against the inner side of the cam piece 7 when the cam piece 7 is loaded.

[0068] like Fig.11 and 12 In the illustrated embodiment, the unloading device 3 also includes a drying mechanism 32 and a storage box 33. A conveyor belt is provided on the unloading table 31. The transfer robot 4 is suitable for placing the cam piece 7 on the conveyor belt. The conveyor belt is suitable for guiding the cam piece 7 to fall into the storage box 33. The drying mechanism 32 includes a fan 321 and an air outlet 322. The fan 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 suitable for discharging air in a vertical direction. While not affecting the unloading and discharging of the cam piece 7, it helps to dry the liquid on the surface of the cam piece 7 to facilitate subsequent processing procedures.

[0069] In some embodiments, the width of the air outlet 322 is not less than the width of the cam piece 7 and can completely cover the cam piece 7, ensuring that the entire surface of the cam piece 7 can be dried when the cam piece 7 passes through.

[0070] In some embodiments, a guide cover is arranged around the air outlet 322 to guide the air flow to the cam piece 7 .

[0071] like Figure 1 In the illustrated embodiment, a water baffle 13 is provided on the processing turntable 1. The water baffle 13 is arranged around the quenching device 5 and the cooling device 6. The water baffle 13 is used to prevent liquid from splashing onto the transfer robot 4, thereby reducing the probability of failure of the transfer robot 4 due to water ingress.

[0072] like Figure 1In the illustrated embodiment, the connection positions between the quencher 51 and the cooler 52 and the external control device are covered with a flexible waterproof cloth. The use of the flexible waterproof cloth can reduce 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, thereby reducing the probability of malfunction of the external control device due to water ingress.

[0073] The above describes the basic principles, main features and advantages of the present application. Technical personnel in this industry should understand that the present application is not limited to the above embodiments. The above embodiments and the specification only describe the principles of the present application. Without departing from the spirit and scope of the present application, the present application will also have various changes and improvements. These changes and improvements all fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached 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; Among them, 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 plate on the processing station in sequence, and the inner circumference of the cooler is provided with a plurality of water outlet holes along the axial and circumferential directions of the cooler, and 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.

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: A placing rod is provided on the placing station, and a cam sheet is suitable for stacking along the axial direction of the placing rod. The transfer robot includes a transfer fixture, and a through channel and a chuck are provided on the transfer fixture. The caliber of the through channel is not less than the diameter of the placing rod, and the placing rod is suitable for passing through the through channel along the axial direction. The chuck is located on the peripheral side of the through channel, and the chuck is suitable for approaching or moving away from each other along the radial direction of the through channel.

5. A quenching cam sheet quenching line as claimed in claim 4, characterized in that: A processing shaft seat is provided on the processing station, and a cam piece is suitable for being axially sleeved on the processing shaft seat. A movable ventilation sleeve is provided on the transfer fixture, and 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, and 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 airflow 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 reaching the cam piece and moving relative to the transfer fixture to open the first airflow channel.

6. A quenching cam sheet quenching line as claimed in claim 5, characterized in that: The transfer fixture is provided with a connecting sleeve, the ventilation sleeve is nested in the connecting sleeve, and a second air flow channel is opened on the connecting sleeve. When the ventilation sleeve abuts against the cam piece, 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 piece; the connecting sleeve is provided with a third air flow channel near one end of the chuck, and when the ventilation sleeve abuts against the cam piece, 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 piece; 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 piece.

7. A quenching cam sheet quenching line as claimed in claim 4, 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.

8. 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.

9. 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.

10. 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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