A batch heat treatment apparatus for shift forks

Abstract

The utility model discloses a kind of fork batch heat treatment equipment, it is related to fork production technical field, including case, the open mouth is equipped in the case upper end, the both sides of the case are fixedly connected with side support plate, two side support plates are fixedly connected with slide rail in opposite side, slide rail one end extends to case interior, moving frame is equipped between two slide rails, the both sides of the moving frame are fixedly connected with L-shaped slide, L-shaped slide lower end is slidably connected with slide rail, the moving frame interior is equipped with the loading assembly for batch loading fork, the both sides of the case are equipped with the moving assembly for driving moving frame along slide rail movement, the case upper end is equipped with the heat treatment assembly for carrying out heat treatment to fork;The utility model is equipped with multiple loading blocks, can simultaneously load multiple forks when using, and then multiple forks can be simultaneously sent into heating position, realize the batch processing of fork, effectively improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shift fork production technology, specifically a batch heat treatment equipment for shift forks. Background Technology

[0002] The shift fork is a core component of an automotive transmission. It is connected to the gear shift lever and is located at the lower end of the lever. During operation, it can move the intermediate shift wheel to change the speed ratio between the input and output. Its main function is to realize clutch shifting. Since the shift teeth need to withstand a large force during operation, the shift teeth must be subjected to quenching heat treatment during the production process to improve their strength and wear resistance.

[0003] The quenching process of shift forks is generally completed using heat treatment equipment. Currently available heat treatment equipment typically uses high-frequency heating to heat the shift teeth of the shift fork during quenching. After heating, the heat-treated area is cooled with coolant, as disclosed in patent CN222861542U, which describes a clamping device for heat treatment of shift forks.

[0004] While the aforementioned fork heat treatment equipment can continuously transport and position the forks via a turntable, delivering them to the heating position, it can only heat one fork at a time, failing to meet batch processing needs. Furthermore, after the forks are quenched, workers must manually unload them and install new forks to be processed. This entire loading, unloading, and material change process is cumbersome, wasting manpower and significantly reducing production efficiency. To address these issues, this application proposes a batch heat treatment equipment for forks to solve the pain points of insufficient batch processing capacity and cumbersome manual operation in existing equipment. Utility Model Content

[0005] The purpose of this invention is to provide a batch heat treatment device for shift forks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A batch heat treatment device for shift forks includes a chassis with an open opening at the top. Side support plates are fixedly connected to both sides of the chassis, and slide rails are fixedly connected to opposite sides of the two side support plates. One end of each slide rail extends into the interior of the chassis, and a movable frame is provided between the two slide rails. L-shaped slide blocks are fixedly connected to both sides of the movable frame, with the lower ends of the L-shaped slide blocks slidably connected to the slide rails. A loading assembly for batch loading shift forks is provided inside the movable frame. Movable assemblies for driving the movable frame to move along the slide rails are provided on both sides of the chassis, and a heat treatment assembly for heat treating the shift forks is provided at the top of the chassis.

[0008] As a further embodiment of this utility model: the loading assembly includes a flip box, which is disposed within a movable frame. Both ends of the flip box are fixedly connected to end shafts, which are rotatably connected to the movable frame. Several loading blocks are fixedly connected to the upper and lower ends of the flip box with screws. The upper end of each loading block is provided with a contour slot, the shape of which matches the shape of the shift fork, for inserting the shift fork. A flip assembly for driving the flip box to flip is also provided on one side of the movable frame. A collection assembly for collecting the shift fork is provided below the side support plate.

[0009] As a further embodiment of this utility model: the flipping component includes a protective shell, which is fixedly connected to the middle of one side of the moving frame. One end of the end shaft that passes through the interior of the protective shell is fixedly connected to a gear. A slide-type electric cylinder is fixedly connected to the upper end of the interior of the protective shell. A rack is fixedly connected to the output end of the slide-type electric cylinder, and the rack meshes with the gear.

[0010] As a further embodiment of this utility model: the collection component includes a collection box, with universal wheels installed at the four corners of the lower end of the collection box, and handles fixedly connected to the upper ends of both sides of the collection box, and the collection box is located between the two side support plates.

[0011] As a further embodiment of this utility model: the moving component includes a first electric push rod, which is fixedly connected to both sides of the chassis. Each output end of the first electric push rod is fixedly connected to a connecting arm, and the end of the connecting arm away from the output end of the first electric push rod is fixedly connected to the moving frame.

[0012] As a further embodiment of this utility model: the heat treatment assembly includes a mounting plate, which is installed at the upper end of the chassis. A second electric push rod is fixedly connected to the middle of the mounting plate, and a connecting plate is fixedly connected to the output end of the second electric push rod. Limiting slide rods are fixedly connected to both sides of the connecting plate, and the limiting slide rods are slidably connected to the mounting plate. A high-frequency heating coil for heating the shift fork is installed on the connecting plate. A high-frequency induction heating power supply is also provided on one side of the chassis. The high-frequency induction heating power supply is electrically connected to the high-frequency heating coil. A cooling assembly for cooling the heated shift fork is provided on the mounting plate.

[0013] As a further embodiment of this utility model: the cooling assembly includes two hollow strips, which are located below both sides of the mounting plate. The upper end of the hollow strips is fixedly connected to the mounting plate by a support plate. Each of the two hollow strips has a downward inclined surface on its opposite side. Several spray holes communicating with the interior of the hollow strips are opened on the inclined surface. One end of each hollow strip is connected to a connecting pipe. The connecting pipe has a connecting interface at the position where it exits the chassis. The lower end of the chassis is provided with a drain pipe.

[0014] As a further improvement of this utility model: an L-shaped baffle is fixedly connected to the side support plate above the slide rail, and one end of the L-shaped baffle extends into the interior of the chassis.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes multiple loading blocks to simultaneously load multiple shift forks, allowing them to be simultaneously fed into the heating position for batch processing, thus significantly improving production efficiency. Furthermore, a tilting component drives the tilting box to rotate 180 degrees after the shift forks have undergone quenching heat treatment, causing the upper loading block to rotate downwards. The shift forks then fall into the collection box under gravity, eliminating the need for manual unloading. Loading the shift forks simply involves inserting them into the contour slots, simplifying the operation and avoiding cumbersome clamping processes, greatly improving convenience and processing efficiency. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0019] Figure 3 This is a schematic diagram of the heat treatment component in this utility model.

[0020] Figure 4 This is a schematic diagram of the loading component in this utility model.

[0021] Figure 5 This is a schematic diagram of the flipping component in this utility model.

[0022] Figure 6 This is a schematic diagram of the slide rail structure in this utility model.

[0023] Figure 7 This is a schematic diagram of the loading block in this utility model.

[0024] Figure 8 This is a schematic diagram of the contour groove in this utility model.

[0025] The components include: 1. Chassis; 2. Drainage pipe; 3. First electric push rod; 4. Connecting pipe; 5. Second electric push rod; 6. Limiting slide rod; 7. Mounting cross plate; 8. Hollow strip; 9. Flip box; 10. Moving frame; 11. Collection box; 12. Side support plate; 13. Loading block; 14. Protective shell; 15. Connecting cross plate; 16. High-frequency heating coil; 17. L-shaped slide; 18. End shaft; 19. Gear; 20. Rack; 21. Slide table type electric cylinder; 22. L-shaped baffle; 23. Slide rail; 24. Contour slot; 25. High-frequency induction heating power supply. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 and Figure 6 In this embodiment of the present invention, a batch heat treatment device for shift forks includes a chassis 1. The chassis 1 has an open opening at its upper end. Side support plates 12 are fixedly connected to both sides of the chassis 1. Slide rails 23 are fixedly connected to opposite sides of the two side support plates 12. One end of the slide rails 23 extends into the interior of the chassis 1. A movable frame 10 is provided between the two slide rails 23. L-shaped slide blocks 17 are fixedly connected to both sides of the movable frame 10. The lower end of the L-shaped slide blocks 17 is slidably connected to the slide rails 23. An L-shaped baffle 22 is fixedly connected to the side support plates 12 above the slide rails 23. One end of the L-shaped baffle 22 extends into the interior of the chassis 1. The side support plates 12 can shield the area above the slide rails 23 to prevent coolant from splashing onto the slide rails 23. The slide rails 23 cooperate with the L-shaped slide blocks 17 to provide guidance for the movement of the movable frame 10, making the movement of the movable frame 10 smoother.

[0028] Please see Figure 4 , Figure 7 and Figure 8The movable frame 10 is equipped with a loading assembly for bulk loading of shift forks. The loading assembly includes a flip box 9, which is located inside the movable frame 10. Both ends of the flip box 9 are fixedly connected to end shafts 18, which are rotatably connected to the movable frame 10. Several loading blocks 13 are fixedly connected to the upper and lower ends of the flip box 9 with screws. Each loading block 13 has a contoured slot 24 at its upper end, the shape of which matches the shape of the shift fork, for insertion. A flipping assembly for driving the flip box 9 to flip is also provided on one side of the movable frame 10. A collecting assembly for collecting the shift forks is located below the side support plate 12. The contoured slot 24 allows for insertion of the shift forks during use. Simultaneously, the flip box 9 can rotate 180 degrees under the drive of the flipping assembly, thereby switching the positions of the loading blocks 13 installed at the upper and lower ends of the flip box 9. When the upper loading block 13 rotates to the lower end, the shift forks fall into the collecting assembly under gravity for collection.

[0029] Please see Figure 4 and Figure 5 The flipping assembly includes a protective shell 14, which is fixedly connected to the middle of one side of the movable frame 10. One end of the end shaft 18, which passes through the interior of the protective shell 14, is fixedly connected to a gear 19. A slide-type electric cylinder 21 is fixedly connected to the upper end of the interior of the protective shell 14. A rack 20 is fixedly connected to the output end of the slide-type electric cylinder 21, and the rack 20 meshes with the gear 19. During operation, the slide-type electric cylinder 21 drives the rack 20 to move, and the movement of the rack 20 drives the gear 19 to rotate. The rotation of the gear 19 drives the flipping box 9 to flip 180 degrees. The protective shell 14 is provided to prevent coolant from contaminating the gear 19 and the rack 20. At the same time, a wire hole is provided on the protective shell 14 for the insertion of the connecting wire of the slide-type electric cylinder 21. After the connecting wire is inserted, the wire hole is sealed with sealant to ensure the airtightness of the protective shell 14.

[0030] Please see Figure 1 The collection assembly includes a collection box 11, with casters installed at the four corners of the lower end of the collection box 11. Handles are fixedly connected to the upper ends of both sides of the collection box 11. The collection box 11 is located between the two side support plates 12. The collection box 11 is used to collect the processed forks. At the same time, the casters at the bottom of the collection box 11 make it easy for workers to move the collection box 11 and send the forks to the next processing step.

[0031] Please see Figure 1Both sides of the chassis 1 are provided with moving components for driving the moving frame 10 to move along the slide rail 23. The moving components include first electric push rods 3, which are respectively fixedly connected to both sides of the chassis 1. Each output end of the first electric push rod 3 is fixedly connected to a connecting arm, and the end of the connecting arm away from the output end of the first electric push rod 3 is fixedly connected to the moving frame 10. During operation, the first electric push rod 3 pushes the moving frame 10 to move along the slide rail 23 to send the moving frame 10 into the chassis 1 for heat treatment, and then sends the moving frame 10 out after heat treatment.

[0032] Please see Figures 1-3 The upper end of the chassis 1 is provided with a heat treatment assembly for heat treatment of the shift fork; the heat treatment assembly includes a mounting plate 7, which is mounted on the upper end of the chassis 1. A second electric push rod 5 is fixedly connected to the middle of the mounting plate 7, and a connecting plate 15 is fixedly connected to the output end of the second electric push rod 5. Limiting slide rods 6 are fixedly connected to both sides of the connecting plate 15, and the limiting slide rods 6 are slidably connected to the mounting plate 7. A high-frequency heating coil 16 for heating the shift fork is installed on the connecting plate 15. One side of the chassis 1 also has... A high-frequency induction heating power supply 25 is provided, which is electrically connected to the high-frequency heating coil 16. During operation, the second electric push rod 5 pushes the connecting horizontal plate 15 down, causing the high-frequency heating coil 16 to fall into the fork position, so that the fork is located inside the high-frequency heating coil 16. The high-frequency heating coil 16 is long and can cover multiple forks. It uses the eddy current heating effect to heat the teeth at the end of the fork. The high-frequency induction heating power supply 25 is used to set and adjust the corresponding parameters of the high-frequency heating coil 16, such as heating time and heating power.

[0033] Please see Figure 1 and Figure 3 The mounting plate 7 is equipped with a cooling assembly for cooling the heated shift fork. The cooling assembly includes two hollow bars 8, which are located on the lower sides of the mounting plate 7. The upper ends of the hollow bars 8 are fixedly connected to the mounting plate 7 by a support plate. The two hollow bars 8 have downward inclined surfaces on opposite sides, and several spray holes communicating with the interior of the hollow bars 8 are opened on the inclined surfaces. One end of each hollow bar 8 is connected to a connecting pipe 4, and the connecting pipe 4 has a connecting interface at the position where it exits the housing 1. The lower end of the housing 1 is equipped with a drain pipe 2. When cooling the shift fork, the connecting pipe 4 is first connected to the coolant supply line, and then coolant is supplied into the hollow bars 8 through the supply line. The coolant is sprayed out through the spray holes and sprayed onto the shift fork to achieve cooling.

[0034] The working principle of this utility model is as follows: In use, the shift fork to be processed is first inserted into the contour slot 24. Then, the moving frame 10 is sent into the housing 1 by the first electric push rod 3. Then, the second electric push rod 5 pushes the connecting horizontal plate 15 down, so that the high-frequency heating coil 16 falls to the shift fork position, so that the shift fork is located in the high-frequency heating coil 16. Then, the high-frequency heating coil 16 heats the shift teeth on the shift fork. After the heating is completed, the second electric push rod 5 drives the connecting horizontal plate 15 and the high-frequency heating coil 16 to reset. Then, the coolant pipeline delivers coolant into the hollow strip 8, and the coolant is sprayed out through the spray nozzle. Cooling of the shift fork is achieved on the shift fork. After cooling is completed, the first electric push rod 3 drives the moving frame 10 to be pushed out of the housing 1. After being pushed out, the slide table type electric cylinder 21 drives the rack 20 to move. The movement of the rack 20 drives the gear 19 to rotate. The rotation of the gear 19 drives the flip box 9 to flip 180 degrees, switching the position of the loading block 13 installed at the upper and lower ends of the flip box 9. When the upper loading block 13 rotates to the lower end, the shift fork will fall into the collection component under the action of gravity for collection. Then, the shift fork to be processed can be placed into the loading block 13 at the upper end of the flip box 9.

[0035] It should also be noted that this application uses a controller for control. The connection circuit and control program can be easily written by those skilled in the art according to the actual situation, so they will not be described in detail here. At the same time, the electrical components involved in this application, such as the first electric push rod 3, the second electric push rod 5, the high-frequency heating coil 16, the high-frequency induction heating power supply 25, and the sliding table type electric cylinder 21, are all prior art. Their working principles and control methods are well known to those skilled in the art, so they will not be described again.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A batch heat treatment apparatus for forks, comprising a cabinet (1), characterized in that: The upper end of the chassis (1) is provided with an opening. Side support plates (12) are fixedly connected to both sides of the chassis (1). Slide rails (23) are fixedly connected to the opposite sides of the two side support plates (12). One end of the slide rail (23) extends into the interior of the chassis (1). A movable frame (10) is provided between the two slide rails (23). L-shaped slide blocks (17) are fixedly connected to both sides of the movable frame (10). The lower end of the L-shaped slide block (17) is slidably connected to the slide rail (23). A loading component for batch loading of shift forks is provided inside the movable frame (10). A moving component for driving the movable frame (10) to move along the slide rail (23) is provided on both sides of the chassis (1). A heat treatment component for heat treatment of shift forks is provided at the upper end of the chassis (1).

2. A batch heat treatment apparatus for shift forks according to claim 1, characterized in that, The loading assembly includes a flip box (9), which is located inside the moving frame (10). Both ends of the flip box (9) are fixedly connected to end shafts (18), which are rotatably connected to the moving frame (10). Several loading blocks (13) are fixedly connected to the upper and lower ends of the flip box (9) with screws. The upper end of the loading block (13) is provided with a contour slot (24), which matches the shape of the fork and is used to insert the fork. A flip assembly for driving the flip box (9) to flip is also provided on one side of the moving frame (10). A collection assembly for collecting the fork is provided below the side support plate (12).

3. A batch heat treatment apparatus for shift forks according to claim 2, wherein The flipping assembly includes a protective shell (14), which is fixedly connected to the middle of one side of the moving frame (10). One end of the end shaft (18) that passes through the interior of the protective shell (14) is fixedly connected to a gear (19). A slide-type electric cylinder (21) is fixedly connected to the upper end of the interior of the protective shell (14). A rack (20) is fixedly connected to the output end of the slide-type electric cylinder (21), and the rack (20) meshes with the gear (19).

4. A batch heat treatment apparatus for shift forks according to claim 2, wherein The collection assembly includes a collection box (11), which is equipped with casters at the four corners of its lower end. Handles are fixedly connected to the upper sides of both sides of the collection box (11). The collection box (11) is located between the two side support plates (12).

5. A batch heat treatment apparatus for shift forks according to claim 1, wherein The moving component includes a first electric push rod (3), which is fixedly connected to both sides of the chassis (1). Each output end of the first electric push rod (3) is fixedly connected to a connecting arm, and the end of the connecting arm away from the output end of the first electric push rod (3) is fixedly connected to the moving frame (10).

6. A batch heat treatment apparatus for shift forks according to claim 1, wherein The heat treatment assembly includes a mounting plate (7), which is mounted on the upper part of the chassis (1). A second electric push rod (5) is fixedly connected in the middle of the mounting plate (7). A connecting plate (15) is fixedly connected to the output end of the second electric push rod (5). Limiting slide rods (6) are fixedly connected to both sides of the connecting plate (15). The limiting slide rods (6) are slidably connected to the mounting plate (7). A high-frequency heating coil (16) for heating the shift fork is installed on the connecting plate (15). A high-frequency induction heating power supply (25) is also provided on one side of the chassis (1). The high-frequency induction heating power supply (25) is electrically connected to the high-frequency heating coil (16). A cooling assembly for cooling the heated shift fork is provided on the mounting plate (7).

7. A batch heat treatment apparatus for shift forks according to claim 6, wherein The cooling assembly includes two hollow bars (8), which are located on both sides of the mounting plate (7). The upper end of the hollow bars (8) is fixedly connected to the mounting plate (7) by a support plate. The two hollow bars (8) have downward inclined surfaces on opposite sides. Several spray holes communicating with the interior of the hollow bars (8) are opened on the inclined surfaces. One end of each hollow bar (8) is connected to a connecting pipe (4). The connecting pipe (4) has a connecting interface at the position where it passes through the chassis (1). The lower end of the chassis (1) is provided with a drain pipe (2).

8. A batch heat treatment device for shift forks according to claim 1, characterized in that, The side support plate (12) is fixedly connected to an L-shaped baffle (22) above the slide rail (23), and one end of the L-shaped baffle (22) extends into the interior of the chassis (1).

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