Camshaft machining quenching device and camshaft production line

Abstract

The application relates to the field of camshaft machining technology and discloses a quenching device for camshaft machining and a camshaft production line.The quenching device comprises a workbench, a conveying mechanism, a quenching mechanism and a clamping mechanism.The clamping mechanism comprises a clamping unit, a driving unit and a limiting unit.The clamping unit comprises a mounting plate and a clamping assembly, the mounting plate is slidably installed on the workbench, the driving unit comprises a first driving piece and a second driving piece, when the second driving piece drives the clamping assembly to clamp the camshaft, the limiting unit locks the mounting plate and the workbench, and after the clamping assembly stably clamps the camshaft, the limiting unit releases the locking of the mounting plate and the workbench.The application is used to solve the problem that in the prior art, in order to guarantee the clamping force of the first clamping rod and the second clamping rod on the motor shaft, a relatively heavy supporting plate needs to be arranged, and the cylinder needs to provide relatively large power to drive the supporting plate to move, thereby increasing energy consumption.

Description

Technical Field

[0001] This invention relates to the field of camshaft machining technology, and in particular to a quenching device and camshaft production line for camshaft machining. Background Technology

[0002] High-frequency quenching is a metal heat treatment method that involves placing the workpiece inside an inductor, typically a hollow copper tube that receives medium-frequency or high-frequency alternating current (1000-300000Hz or higher). This induces a current of the same frequency within the workpiece. This induced current is unevenly distributed, strong at the surface and weak at the interior, approaching zero at the core. Utilizing this skin effect, the workpiece surface is rapidly heated, reaching 800-1000℃ within seconds, while the core temperature rises only slightly, followed by rapid cooling. Quenching can induce martensitic structures in materials such as steel, thereby increasing their hardness and strength, as well as improving their wear resistance.

[0003] Chinese invention patent [Publication No.: CN114561521A] discloses a high-frequency quenching device and quenching process for motor shafts, including a conveyor belt and a worktable disposed above the conveyor belt. Several placement seats are evenly arranged on the conveyor belt. A clamping mechanism is slidably installed on the worktable. The clamping mechanism includes a power unit, a support component, a clamping component, and a locking component. The power unit is disposed on the worktable, the support component is slidably disposed on the worktable, the clamping component is disposed on the worktable and the support component, and the locking component is disposed on the clamping component and the worktable. A high-frequency sensor is disposed at the bottom of the worktable, and a water pipe is disposed on one side of the worktable next to the high-frequency sensor.

[0004] Because the support plate of this device is slidably mounted on the worktable, during use, when the first and second clamping rods clamp the motor shaft, if the clamping force exceeds a certain value, the cylinder will continue to operate, causing the first and second clamping rods, the motor shaft, and the support plate to move synchronously in the direction of cylinder extension. Therefore, to ensure the clamping force of the first and second clamping rods on the motor shaft, a heavier support plate is required, and the cylinder needs to provide greater power to move the support plate, resulting in increased energy consumption. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a quenching device and a camshaft production line for camshaft processing, which solves the problem in the prior art that in order to ensure the clamping force of the first clamping rod and the second clamping rod on the motor shaft, a heavy support plate is required, and the cylinder needs to provide a large amount of power to drive the support plate to move, resulting in increased energy consumption.

[0006] The present invention solves the above-mentioned technical problems through the following technical means:

[0007] A quenching apparatus for camshaft machining, comprising:

[0008] Workbench

[0009] A conveyor mechanism for conveying camshafts;

[0010] The quenching mechanism is used to quench the camshaft;

[0011] It also includes a clamping mechanism, which includes:

[0012] A clamping unit, comprising a mounting plate and a clamping assembly, wherein the mounting plate is slidably mounted on a worktable, and the clamping assembly is disposed at the bottom of the mounting plate; the movement of the mounting plate can drive the clamping assembly to move, and the clamping assembly is used to clamp a camshaft.

[0013] The driving unit includes a first driving member and a second driving member. The first driving member is used to drive the mounting plate to move, and the second driving member is used to drive the clamping assembly to clamp the camshaft or release the clamped camshaft.

[0014] When the second driving member drives the clamping assembly to clamp the camshaft, the limiting unit locks the mounting plate and the worktable. After the clamping assembly clamps the camshaft securely, the limiting unit releases the lock on the mounting plate and the worktable.

[0015] Furthermore, the clamping assembly includes a first tip and a second tip, each with a mounting ear. A mounting rod is fixedly mounted on the bottom of the mounting plate, and both mounting ears are slidably connected to the mounting rod. A sliding rod is provided on the top of the mounting plate, and a connecting block is slidably mounted on the sliding rod. A connecting rod is hinged to the top of each of the two mounting ears. A first through slot is provided on the mounting plate corresponding to the position of the connecting rod. The free ends of the two connecting rods pass through the corresponding first through slots and are hinged to the two ends of the connecting block. The second driving member is connected to the connecting block in a transmission manner.

[0016] Furthermore, the second driving component is provided with a support surface, the connecting block is provided with a guide post, the guide post abuts against the support surface, the support surface includes a horizontal surface and inclined surfaces provided on both sides of the horizontal surface, the horizontal surface is located at the top of the two inclined surfaces, and a first elastic element is sleeved on the slide rod, the first elastic element is a tension spring, one end of the first elastic element is fixedly abutted against the mounting plate, and the other end abuts against the connecting block.

[0017] Furthermore, the limiting unit includes a locking tongue and a locking buckle. A fixing plate is provided at the bottom of the mounting plate, and a first column is provided on the fixing plate. The locking tongue is slidably mounted on the first column, and the locking buckle is fixedly mounted on the worktable. A limiting groove is provided at the bottom of the locking buckle. When the mounting plate abuts against the worktable, the locking tongue moves downward along the vertical direction of the mounting plate, and the locking tongue is reset and inserted into the limiting groove.

[0018] Furthermore, a second elastic element is fitted onto the first column. One end of the second elastic element abuts against the latch, and the other end abuts against the fixing plate. A first guide surface is provided on the top of the latch, and a second guide surface is provided on the end of the latch. When the latch abuts against the latch, the first guide surface and the second guide surface cooperate to make the latch move downward along the vertical direction of the mounting plate. After the first guide surface and the second guide surface disengage, the elastic element causes the latch to reset and insert into the limiting groove.

[0019] Furthermore, the limiting unit is provided in two sets, and the two sets of limiting units are respectively located at both ends of the mounting plate. The second driving member is fixedly connected to the first driving member. The mounting plate is provided with a second through groove, and the locking tongue passes through the second through groove and protrudes outside the mounting plate. The first driving member is engaged between the locking tongues of the two limiting units. After the locking tongue moves downward along the vertical direction of the mounting plate, the first driving member can drive the second driving member to continue moving.

[0020] Furthermore, a slot is provided at the bottom of the first driving component, and a delay component is provided on the fixing plate. The delay component is used to provide resistance to the locking tongue and delay the speed at which the locking tongue moves upward along the vertical direction of the mounting plate.

[0021] Furthermore, the clamping mechanism is provided in two sets, the quenching mechanism includes two sets of quenching components, the conveying mechanism includes two conveyor belts, the two sets of clamping mechanisms move in opposite directions, the two conveyor belts convey in opposite directions, and a power mechanism is provided on the worktable. The first driving component of both sets of clamping mechanisms is connected to the power mechanism for transmission.

[0022] Furthermore, the conveyor belt is provided with several support units, each support unit including two support components, each support component including a support block, and a second column is provided on the conveyor belt at a position corresponding to the support block. A third elastic element is sleeved on the second column, one end of the third elastic element abutting against the first conveyor belt and the other end abutting against the support block. A support groove is provided on the support block, and the shaft of the camshaft can be placed in the support groove. A first inclined surface and a second inclined surface are symmetrically provided on both sides of the support block.

[0023] The present invention also discloses a camshaft production line, including an input shaft conveying unit, a robotic arm unit, a grinding machine unit, a gear hobbing unit, a gear shaving unit, a quenching unit, an external grinding unit, and an output shaft unit, wherein the quenching unit uses the quenching device described above.

[0024] The beneficial effects of this invention are:

[0025] 1. By setting a limit unit, when the second drive unit drives the clamping assembly to clamp the camshaft, the limit unit locks the mounting plate and the worktable, which can effectively ensure that the clamping assembly clamps the camshaft firmly without adding extra weight to the mounting plate.

[0026] 2. By setting up an installation plate, connecting block and connecting rod, the first and second centers can be moved closer or further apart by controlling the up and down movement of the connecting block, so as to realize the clamping assembly clamping the camshaft or releasing the clamped camshaft.

[0027] 3. By setting guide posts, a first elastic element, a horizontal plane, and an inclined plane, the movement of the second driving element can be controlled to move the connecting block up and down.

[0028] 4. By setting a second elastic element, a first guide surface, and a second guide surface, when the bolt abuts against the latch, the first guide surface and the second guide surface cooperate to make the bolt move downward along the vertical direction of the mounting plate, without the need to set an additional drive source for the bolt.

[0029] 5. By setting limiting units at both ends of the mounting plate and fixing the second driving member to the first driving member, after the locking tongue moves downward along the vertical direction of the mounting plate, the first driving member can drive the second driving member to continue moving, without the need to set an independent driving source for the second driving member.

[0030] 6. By incorporating a delay component, the following issues can be effectively prevented: after the first guide surface separates from the second guide surface, the elastic element immediately resets the latch and inserts it into the limiting groove, preventing the first driving component from continuing to move. Also, after the first guide slope drives the latch downwards, causing it to disengage from the limiting groove, the elastic element immediately resets the latch and inserts it into the limiting groove, preventing the first driving component from driving the mounting plate to move via the latch at the other end. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a quenching device for camshaft machining according to the present invention;

[0032] Figure 2 This is a schematic diagram of the conveying mechanism in a quenching device for camshaft machining according to the present invention;

[0033] Figure 3 This is a schematic diagram showing the disassembled structure of the conveying mechanism in a quenching device for camshaft machining according to the present invention;

[0034] Figure 4 This is a cross-sectional enlarged structural schematic diagram of a quenching device for camshaft machining according to the present invention;

[0035] Figure 5 yes Figure 4 A magnified structural diagram of A in the middle;

[0036] Figure 6 This is a schematic diagram of the conveying mechanism in a quenching device for camshaft machining according to the present invention;

[0037] Figure 7 yes Figure 6 A magnified structural diagram of B in the diagram;

[0038] Figure 8 This is a schematic diagram of the quenching mechanism in a quenching device for camshaft machining according to the present invention;

[0039] Figure 9 This is a schematic diagram of the production process of a camshaft according to the present invention;

[0040] in,

[0041] 1. Workbench; 11. Mounting slot;

[0042] 2. Conveying mechanism; 21. First conveyor belt; 211. Second column; 22. Second conveyor belt;

[0043] 3. Quenching mechanism; 31. Quenching assembly; 311. Coil; 312. Mounting bracket; 32. Water tank; 321. Water pipe; 33. Water storage tank; 331. Filter tank;

[0044] 41. First clamping mechanism; 42. Second clamping mechanism;

[0045] 51. Mounting plate; 511. Mounting rod; 512. Slide rod; 513. First through slot; 514. Second through slot; 515. Plate body; 52. First center point; 53. Second center point; 54. Mounting ear; 55. Connecting block; 551. Guide post; 56. Connecting rod; 57. Rotary motor; 58. First elastic element; 59. Fixing plate; 591. First column; 592. Second elastic element;

[0046] 6. Drive unit; 61. First drive component; 612. Slot; 62. Second drive component; 621. Horizontal plane; 622. Inclined plane;

[0047] 71. Locking tongue; 711. First guide surface; 72. Locking latch; 721. Second guide surface; 722. Limiting groove; 731. Elastic strip;

[0048] 8. Power mechanism; 81. Servo motor; 82. Transmission gears;

[0049] 9. Support unit; 91. Support block; 911. Through hole; 912. Support groove; 913. First inclined surface; 914. Second inclined surface; 92. Third elastic element;

[0050] 10. Camshaft. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] and camshaft production line

[0053] Example 1, as Figures 1-8 As shown, a quenching apparatus for camshaft machining according to the present invention includes a worktable 1, a conveying mechanism 2, a quenching mechanism 3, and a clamping mechanism, wherein...

[0054] The conveying mechanism 2 is located below the workbench 1 and is used to convey the camshaft 10. Specifically, the conveying mechanism 2 includes a first conveyor belt 21 and a second conveyor belt 22. Both the first conveyor belt 21 and the second conveyor belt 22 are located below the workbench 1, and the conveying directions of the first conveyor belt 21 and the second conveyor belt 22 are opposite.

[0055] The quenching mechanism 3 is located below the workbench 1 and between the first conveyor belt 21 and the second conveyor belt 22. It is used to quench the camshaft 10. Specifically, the quenching mechanism 3 includes two sets of quenching components 31 and a water tank 32. The quenching components 31 include coils 311, which are high-frequency quenching coils. The camshaft 10 is quenched when it passes through the coils 311. A mounting bracket 312 is provided at the bottom of the coils 311 and is fixedly installed on the water tank 32. Water pipes 321 are provided on both sides of the coils 311. A water pump is provided in the water tank 32, and the water pipes 321 are connected to the water pump. When the water pump is working, it can spray the cooling water in the water tank 32 onto the camshaft 10 through the water pipes 321 to cool the camshaft 10. The water tank 32 is equipped with a water storage tank 33, and the bottom of the water storage tank 33 is provided with several filter tanks 331. The water storage tank 33 is connected to the water tank 32 through the filter tanks 331. The water sprayed by the water pipe 321 is filtered through the filter tanks 331 and then returned to the water tank 32, realizing water recycling.

[0056] The clamping mechanism is slidably mounted on the worktable 1. It clamps the camshaft 10 on the first conveyor belt 21 or the second conveyor belt 22, and quenches the clamped camshaft 10 through the coil 311. The quenched camshaft 10 is then placed on the second conveyor belt 22 or the first conveyor belt 21. After the quenched camshaft 10 is transported away by the second conveyor belt 22 or the first conveyor belt 21, the clamping mechanism can then clamp the unquenched camshaft 10 on the second conveyor belt 22 or the first conveyor belt 21 nearby. The clamping mechanism does not need to be reset, effectively improving quenching efficiency.

[0057] In this embodiment, two clamping mechanisms are provided: a first clamping mechanism 41 and a second clamping mechanism 42, with opposite moving directions. These correspond to the two sets of quenching components 31. For example, when the first clamping mechanism 41 clamps the camshaft 10 on the first conveyor belt 21 for quenching, the second clamping mechanism 42 clamps the camshaft 10 on the second conveyor belt 22 for quenching. When the first clamping mechanism 41 places the quenched camshaft 10 on the second conveyor belt 22, the second clamping mechanism 42 places the quenched camshaft 10 on the first conveyor belt 21. After the first and second conveyor belts 21 and 22 have transported the quenched camshaft 10 away, the first clamping mechanism 41 clamps the unquenched camshaft 10 on the second conveyor belt 22 for quenching, and the second clamping mechanism 42 clamps the unquenched camshaft 10 on the first conveyor belt 21 for quenching, further improving quenching efficiency.

[0058] Since the first clamping mechanism 41 and the second clamping mechanism 42 have the same structure, the following detailed description will take the first clamping mechanism 41 as an example:

[0059] The first clamping mechanism 41 includes: a clamping unit, a driving unit 6, and a limiting unit, wherein...

[0060] The clamping unit is used to clamp and move the camshaft 10. Specifically, the clamping unit includes a mounting plate 51 and a clamping assembly. The mounting plate 51 is slidably mounted on the worktable 1, and the clamping assembly is located at the bottom of the mounting plate 51. The movement of the mounting plate 51 can drive the clamping assembly to move. The clamping assembly is used to clamp the camshaft 10. In this embodiment, the workbench 1 has a mounting groove 11, and the mounting plate 51 is slidably installed in the mounting groove 11. The clamping assembly includes a first tip 52 and a second tip 53. Both the first tip 52 and the second tip 53 are provided with mounting ears 54. The bottom of the mounting plate 51 is fixedly installed with a mounting rod 511, and both mounting ears 54 are slidably connected to the mounting rod 511. The top of the mounting plate 51 is provided with a sliding rod 512, and a connecting block 55 is slidably provided on the sliding rod 512. The tops of both mounting ears 54 are hinged with connecting rods 56. The mounting plate 51 has a first through groove 513 corresponding to the position of the connecting rod 56. The free ends of the two connecting rods 56 pass through the corresponding first through grooves 513 and are hinged to the two ends of the connecting block 55. By controlling the up and down movement of the connecting block 55, the first tip 52 and the second tip 53 can be moved closer to each other or further away from each other, so that the clamping assembly can clamp the camshaft 10 or release the clamped camshaft 10. In this embodiment, a rotary motor 57 is fixedly installed on the mounting ear 54 corresponding to the first tip 52. The output shaft of the rotary motor 57 is fixedly connected to the first tip 52. When the camshaft 10 passes through the coil 311, the rotary motor 57 works, driving the first tip 52 to rotate, thereby driving the camshaft 10 clamped between the first tip 52 and the second tip 53 to rotate, so that the camshaft 10 is uniformly quenched.

[0061] When the first center 52 and the second center 53 approach each other to clamp the camshaft 10, the limiting unit locks the mounting plate 51 and the worktable 1. After the first center 52 and the second center 53 have firmly clamped the camshaft 10, the limiting unit releases the lock on the mounting plate 51 and the worktable 1. Specifically, the limiting unit includes a locking tongue 71 and a locking buckle 72. The locking tongue 71 is disposed on the mounting plate 51, and the locking buckle 72 is fixedly disposed on the worktable 1. When the mounting plate 51 abuts against the worktable 1, the locking tongue 71 and the locking buckle 72 are locked.

[0062] Drive unit 6 is used to drive the mounting plate 51 to move and to drive the clamping assembly to clamp or release the clamped camshaft 10. Specifically, drive unit 6 includes a first drive member 61 and a second drive member 62. The first drive member 61 is used to drive the mounting plate 51 to move, and the second drive member 62 is used to drive the clamping assembly to clamp or release the clamped camshaft 10.

[0063] The first driving member 61 drives the mounting plate 51 to move by pushing the locking tongue 71. Specifically, there are two sets of limiting units, which are respectively set at both ends of the mounting plate 51. The mounting plate 51 has a second through groove 514. The locking tongue 71 passes through the second through groove 514 and protrudes out of the mounting plate 51. The first driving member 61 is engaged between the locking tongues 71 of the two limiting units. When the first driving member 61 moves, it pushes the mounting plate 51 to move through the locking tongue 71.

[0064] The second driving member 62 is provided with a support surface, and the connecting block 55 is provided with a guide post 551. The guide post 551 abuts against the support surface. The support surface includes a horizontal surface 621 and inclined surfaces 622 provided on both sides of the horizontal surface 621. The horizontal surface 621 is located at the top of the two inclined surfaces 622. When the guide post 551 abuts against the horizontal surface 621, the first tip 52 and the second tip 53 are in a clamped state. When the guide post 551 abuts against the inclined surface 622, the first tip 52 and the second tip 53 are in a released state. When the guide post 551 moves from abutting against the horizontal surface 621 to abutting against the inclined surface 622, the first tip 52 and the second tip 53 move away from each other until the first tip 52 and the second tip 53 release the clamped camshaft 10. When the guide post 551 moves from contact with the inclined surface 622 to contact with the horizontal surface 621, the first tip 52 and the second tip 53 move closer to each other until the first tip 52 and the second tip 53 firmly clamp the camshaft 10 on the first conveyor belt 21 or the second conveyor belt 22. That is, by moving the second drive member 62 relative to the guide post 551, the first tip 52 and the second tip 53 can be controlled to clamp or release the clamped camshaft 10.

[0065] In this embodiment, a first elastic element 58 is sleeved on the slide rod 512. The first elastic element 58 is a tension spring. One end of the tension spring is fixedly abutted against the mounting plate 51, and the other end abuts against the connecting block 55. The connecting block 55 keeps the guide post 551 in contact with the support surface through the first elastic element 58, so as to prevent the first tip 52 and the second tip 53 from moving at will.

[0066] In this embodiment, a fixing plate 59 is provided at the bottom of the mounting plate 51, and a first column 591 is provided on the fixing plate 59. The locking tongue 71 is slidably mounted on the first column 591. A second elastic member 592 is sleeved on the first column 591. The second elastic member 592 is a compression spring. One end of the second elastic member 592 abuts against the locking tongue 71, and the other end abuts against the fixing plate 59. The locking tongue 71 is kept by the second elastic member 592 to pass through the second through groove 514 and protrude outside the mounting plate 51.

[0067] The locking tongue 71 can be driven independently or in conjunction with other components. In this embodiment, the locking tongue 71 is driven in conjunction with other components. Specifically, the top of the locking tongue 71 is provided with a first guide surface 711, the end of the latch 72 is provided with a second guide surface 721, and the bottom of the latch 72 is provided with a limiting groove 722. When the locking tongue 71 abuts against the latch 72, the first guide surface 711 and the second guide surface 721 cooperate to make the locking tongue 71 move downward along the vertical direction of the mounting plate 51. After the first guide surface 711 and the second guide surface 721 disengage, the elastic element makes the locking tongue 71 reset and insert into the limiting groove 722, so that when the mounting plate 51 abuts against the worktable 1, the locking tongue 71 and the latch 72 are locked.

[0068] In this embodiment, the second driving member 62 is fixedly connected to the first driving member 61. When the first driving member 61 moves, it can drive the second driving member 62 to move together, without the need to configure power sources for the first driving member 61 and the second driving member 62 separately. After the locking tongue 71 moves downward to disengage from the first driving member 61, the first driving member 61 continues to move, which can drive the second driving member 62 to move. When the second driving member 62 moves, it continues until the first tip 52 and the second tip 53 release the clamped camshaft 10.

[0069] In this embodiment, a power mechanism 8 is provided between the first clamping mechanism 41 and the second clamping mechanism 42. The power mechanism 8 includes a servo motor 81 and a transmission gear 82. A rack is provided on the first driving member 61, and the rack meshes with the transmission gear 82. When the servo motor 81 is working, it can drive the first clamping mechanism 41 and the second clamping mechanism 42 to move synchronously at the same time, without the need to configure a power source for each clamping mechanism.

[0070] In this embodiment, the bottom of the first driving member 61 is provided with a slot 612. When the locking tongue 71 is inserted into the limiting slot 722, the locking tongue 71 is located in the slot 612, preventing the locking tongue 71 from affecting the movement of the first driving member 61. When the first driving member 61 moves and the end wall of the slot 612 abuts against the first guide surface 711 of the locking tongue 71, the locking tongue 71 can be driven downward by the first guide slope, thereby disengaging the locking tongue 71 from the limiting slot 722 and releasing the locking tongue 71 from the latch 72.

[0071] In this embodiment, a delay component is provided on the fixing plate 59. The delay component provides resistance to the latch 71, delaying the speed at which the latch 71 moves upward in the vertical direction along the mounting plate 51, i.e., delaying its reset speed. This effectively prevents the first driving member 61 from being unable to continue moving after the first guide surface 711 separates from the second guide surface 721 and the second elastic member 592 immediately resets the latch 71 and inserts it into the limiting groove 722. Conversely, it also prevents the first driving member 61 from being unable to drive the mounting plate 51 to move after the first guide surface 711 drives the latch 71 downward, causing the latch 71 to disengage from the limiting groove 722 and the second elastic member 592 immediately resets the latch 71 and inserts it into the limiting groove 722. In this embodiment, the delay component consists of multiple elastic strips 731. A plate 515 is provided on one side of the mounting plate 51, and the multiple elastic strips 731 are fixedly mounted on the plate 515. When the latch 71 moves, it squeezes the elastic strips 731, thereby delaying the reset speed of the latch 71. In other embodiments, an electromagnet can also be used to attract the latch 71 to achieve the same purpose of delaying the reset speed of the latch 71.

[0072] In this embodiment, the first conveyor belt 21 and the second conveyor belt 22 have the same structure. The following is a detailed description using the first conveyor belt 21 as an example:

[0073] A plurality of support units 9 are provided on the first conveyor belt 21. Each support unit 9 includes two support components, each including a support block 91. Two support blocks 91 are respectively disposed on both sides of the first conveyor belt 21. A second column 211 is provided on the first conveyor belt 21 at a position corresponding to the support block 91. A through hole 911 is provided on the support block 91, through which the support block 91 is slidably disposed on the second column 211. A first limiting ring is provided at the top of the second column 211, and a second limiting ring is provided at the bottom of the through hole 911. The first and second limiting rings are used to limit the highest position of the support block 91 to prevent the support block 91 from detaching from the second column 211. A third elastic element 92 is sleeved on the second column 211. One end of the third elastic element 92 abuts against the first conveyor belt 21, and the other end abuts against the support block 91. The third elastic element 92 is a compression spring, used to keep the support block 91 in the highest position.

[0074] The support block 91 has a support groove 912, in which the shaft of the camshaft 10 can be placed. By supporting the shaft of the camshaft 10, the axis of the camshaft 10 can be determined so that the first tip 52 and the second tip 53 can be clamped on the axis of the camshaft 10. The support block 91 has a first inclined surface 913 and a second inclined surface 914 symmetrically arranged on both sides. When the first tip 52 and the second tip 53 clamp the camshaft 10 and move it, when the cam of the camshaft 10 abuts against the first inclined surface 913 or the second inclined surface 914, it can drive the support block 91 to move downward, so that the support block 91 can be released from the obstruction of the camshaft 10, so that the first tip 52 and the second tip 53 can clamp the camshaft 10 smoothly through the support block 91.

[0075] It should be noted that in the two support components of support unit 9, only one support component holds the camshaft 10 to be quenched, while the other support component is used to support the already quenched camshaft 10. Furthermore, the positions of the camshafts 10 to be quenched on adjacent support units 9 on the first conveyor belt 21 are opposite; that is, the camshafts 10 to be quenched in the preceding support unit 9 are placed on the support component closer to the conveying direction, while the camshafts 10 to be quenched in the following support unit 9 are placed on the support component farther from the conveying direction. The second conveyor belt 22 follows the same principle as the first conveyor belt 21. If the camshafts 10 to be quenched are placed on the support components on the first conveyor belt 21, then the corresponding support components on the second conveyor belt 22 do not hold the camshafts 10 to be quenched.

[0076] This embodiment describes a quenching device for camshaft machining, which operates as follows:

[0077] First, the servo motor 81 operates, driving the first drive member 61 of the first clamping mechanism 41 and the second clamping mechanism 42 to move in opposite directions via the transmission gear 82 and rack. The first clamping mechanism 41 clamps the camshaft 10 on the first conveyor belt 21 support assembly, and the second clamping mechanism 42 clamps the camshaft 10 on the second conveyor belt 22 support assembly.

[0078] In this process, since the working principle of the first clamping mechanism 41 and the second clamping mechanism 42 is the same, the subsequent steps will be explained in detail using the working principle of the first clamping mechanism 41 as an example: When the first driving member 61 moves, it drives the second driving member 62 to move. During the movement of the second driving member 62, the guide post 551 moves from abutting against the inclined surface 622 to abutting against the horizontal surface 621. The second driving member 62 pushes the connecting block 55 to move upward against the pulling force of the first elastic member 58. The connecting block 55 drives the first tip 52 and the second tip 53 to move closer to each other through the connecting rod 56 until the first tip 52 and the second tip 53 clamp the camshaft 10 on the first conveyor belt 21 support assembly firmly.

[0079] Then, the first clamping mechanism 41 and the second clamping mechanism 42 continue to move, so that the clamped camshaft 10 is quenched by the corresponding coil 311.

[0080] During this process, the first driving member 61 moves, and the end wall of the slot 612 abuts against the first guide surface 711 of the latch 71. The first guide slope drives the latch 71 to move downward, thereby disengaging the latch 71 from the limiting groove 722 and releasing the latch 71 from the lock 72. The first driving member 61 continues to move, which can drive the mounting plate 51 to move by pushing the latch 71 at the other end, so that the camshaft 10 held by the first tip 52 and the second tip 53 can be quenched by the coil 311. After the latch 71 disengages from the limiting groove 722, the second elastic member 592 restores its deformation, allowing the latch 71 to slowly move upward against the resistance of the delay component until the latch 71 protrudes out of the mounting plate 51 again.

[0081] After quenching, the first clamping mechanism 41 places the quenched camshaft 10 on the support assembly of the second conveyor belt 22, and the second clamping mechanism 42 places the quenched camshaft 10 on the support assembly of the first conveyor belt 21.

[0082] During this process, the first driving member 61 moves. When the locking tongue 71 abuts against the locking latch 72, the first guide surface 711 and the second guide surface 721 cooperate to compress the second elastic member 592, causing the locking tongue 71 to move downwards along the vertical direction of the mounting plate 51. After the locking tongue 71 is released from the obstruction of the first driving member 61, the first driving member 61 continues to move, driving the second driving member 62 to move relative to the mounting plate 51. As the first driving member 61 continues to move, the second elastic member 592 recovers its deformation, causing the locking tongue 71 to overcome the resistance of the delay component and slowly move upwards until the locking tongue 71 is engaged in the limiting groove 722, locking the mounting plate 51 and the worktable 1.

[0083] When the second drive member 62 moves relative to the mounting plate 51, the guide post 551 moves from contact with the horizontal surface 621 to contact with the inclined surface 622. The first elastic member 58 pulls the connecting block 55 downward. The connecting block 55 drives the first tip 52 and the second tip 53 to move away from each other through the connecting rod 56, placing the quenched camshaft 10 on the support assembly of the second conveyor belt 22.

[0084] Finally, after the quenched camshaft 10 is conveyed away by the second conveyor belt 22, the first clamping mechanism 41 clamps the unquenched camshaft 10 on the support assembly of the second conveyor belt 22 for quenching, and the second clamping mechanism 42 clamps the unquenched camshaft 10 on the support assembly of the first conveyor belt 21 for quenching, thus forming a working cycle.

[0085] Example 2, as Figure 9As shown, this embodiment is a camshaft production line, including an input shaft conveying unit, a robotic arm unit, a grinding machine unit, a gear hobbing unit, a gear shaving unit, a quenching unit, an external grinding unit, and an output shaft unit. Through the cooperation of the input shaft conveying unit, the robotic arm unit, the grinding machine unit, the gear hobbing unit, the gear shaving unit, the quenching unit, the external grinding unit, and the output shaft unit, the efficient and intelligent production of the camshaft 10 is achieved.

[0086] In this embodiment of the camshaft production line, during operation, the feed shaft conveying unit transports the rough camshaft blank to be processed to the grinding unit. A robotic arm unit then places the rough camshaft blank sequentially onto the grinding unit, where it is processed into a camshaft blank 10. After the camshaft blank 10 is processed, it undergoes gear hobbing. Once the gear hobbing is complete, the robotic arm unit removes the hobbed camshaft 10. The hobbed camshaft 10 is then transferred by the robotic arm unit to the shaving unit to remove burrs from the gears. It is then transferred by the robotic arm unit to the quenching device of Embodiment 1, where the entire camshaft 10 is quenched. After quenching, it is transferred by the robotic arm unit to the external grinding unit for further grinding. Finally, it is transferred to the output shaft unit to output the processed camshaft 10.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A quenching apparatus for camshaft machining, comprising: Workbench (1), Conveying mechanism (2) for conveying camshaft (10); The quenching mechanism (3) is used to quench the camshaft (10); The feature is that it further includes a clamping mechanism, the clamping mechanism comprising: The clamping unit includes a mounting plate (51) and a clamping assembly. The mounting plate (51) is slidably mounted on the worktable (1). The clamping assembly is disposed at the bottom of the mounting plate (51). The movement of the mounting plate (51) can drive the clamping assembly to move. The clamping assembly is used to clamp the camshaft (10). The drive unit (6) includes a first drive member (61) and a second drive member (62). The first drive member (61) is used to drive the mounting plate (51) to move, and the second drive member (62) is used to drive the clamping assembly to clamp the camshaft (10) or release the clamped camshaft (10). When the second driving member (62) drives the clamping assembly to clamp the camshaft (10), the limiting unit locks the mounting plate (51) and the worktable (1). After the clamping assembly clamps the camshaft (10) securely, the limiting unit releases the lock on the mounting plate (51) and the worktable (1). The limiting unit includes a locking tongue (71) and a locking latch (72). The limiting unit is provided in two sets, and the two sets of limiting units are respectively provided at both ends of the mounting plate (51). The second driving member (62) is fixedly connected to the first driving member (61). The mounting plate (51) is provided with a second through groove (514). The locking tongue (71) passes through the second through groove (514) and protrudes out of the mounting plate (51). The first driving member (61) is engaged between the locking tongues (71) of the two limiting units. After the locking tongue (71) moves downward along the vertical direction of the mounting plate (51), the first driving member (61) can drive the second driving member (62) to continue moving. The clamping mechanism is provided in two sets, the quenching mechanism (3) includes two sets of quenching components (31), the conveying mechanism (2) includes two conveyor belts, the two sets of clamping mechanisms move in opposite directions, the two conveyor belts convey in opposite directions, the worktable (1) is provided with a power mechanism (8), and the first driving component (61) of the two sets of clamping mechanisms is connected to the power mechanism (8) for transmission.

2. The quenching device for camshaft machining according to claim 1, characterized in that, The clamping assembly includes a first tip (52) and a second tip (53). Both the first tip (52) and the second tip (53) are provided with mounting ears (54). The bottom of the mounting plate (51) is fixedly mounted with a mounting rod (511). The mounting ears (54) are slidably connected to the mounting rod (511). The top of the mounting plate (51) is provided with a sliding rod (512). A connecting block (55) is slidably provided on the sliding rod (512). The tops of the two mounting ears (54) are hinged with connecting rods (56). The mounting plate (51) is provided with a first through groove (513) corresponding to the position of the connecting rod (56). The free ends of the two connecting rods (56) pass through the corresponding first through grooves (513) and are hinged to the two ends of the connecting block (55). The second driving member (62) is connected to the connecting block (55) in a transmission manner.

3. The quenching device for camshaft machining according to claim 2, characterized in that, The second driving member (62) is provided with a support surface, and the connecting block (55) is provided with a guide post (551). The guide post (551) abuts against the support surface. The support surface includes a horizontal surface (621) and inclined surfaces (622) provided on both sides of the horizontal surface (621). The horizontal surface (621) is located at the top of the two inclined surfaces (622). A first elastic element (58) is sleeved on the slide rod (512). The first elastic element (58) is a tension spring. One end of the first elastic element (58) is fixedly abutted against the mounting plate (51), and the other end abuts against the connecting block (55).

4. A quenching apparatus for camshaft machining according to any one of claims 1-3, characterized in that, The mounting plate (51) has a fixing plate (59) at its bottom. A first column (591) is provided on the fixing plate (59). The locking tongue (71) is slidably mounted on the first column (591). The latch (72) is fixedly mounted on the workbench (1). A limiting groove (722) is provided at the bottom of the latch (72). When the mounting plate (51) abuts against the workbench (1), the locking tongue (71) moves downward along the vertical direction of the mounting plate (51). After the locking tongue (71) is reset, it is inserted into the limiting groove (722).

5. A quenching device for camshaft machining according to claim 4, characterized in that, A second elastic element (592) is sleeved on the first column (591). One end of the second elastic element (592) abuts against the latch (71), and the other end abuts against the fixing plate (59). The top of the latch (71) is provided with a first guide surface (711), and the end of the latch (72) is provided with a second guide surface (721). When the latch (71) abuts against the latch (72), the first guide surface (711) and the second guide surface (721) cooperate to make the latch (71) move downward along the vertical direction of the mounting plate (51). After the first guide surface (711) and the second guide surface (721) disengage, the second elastic element (592) makes the latch (71) reset and insert into the limiting groove (722).

6. A quenching device for camshaft machining according to claim 4, characterized in that, The first driving member (61) has a slot (612) at its bottom, and a delay component is provided on the fixing plate (59). The delay component is used to provide resistance to the locking tongue (71) and delay the speed at which the locking tongue (71) moves upward along the vertical direction of the mounting plate (51).

7. The quenching device for camshaft machining according to claim 1, characterized in that, The conveyor belt is provided with several support units (9), each support unit (9) includes two support components, each support component includes a support block (91), and a second column (211) is provided on the conveyor belt at a position corresponding to the support block (91). A third elastic element (92) is sleeved on the second column (211). One end of the third elastic element (92) abuts against the first conveyor belt (21), and the other end abuts against the support block (91). A support groove (912) is provided on the support block (91), and the shaft of the camshaft (10) can be placed in the support groove (912). A first inclined surface (913) and a second inclined surface (914) are symmetrically arranged on both sides of the support block (91).

8. A camshaft production line, comprising an input shaft conveying unit, a robotic arm unit, a grinding machine unit, a gear hobbing unit, a gear shaving unit, a quenching unit, an external grinding unit, and an output shaft unit, characterized in that, The quenching unit uses the quenching apparatus as described in any one of claims 1-7.

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