A heat treatment apparatus for press die machining

Abstract

This invention discloses a heat treatment device for stamping die processing, relating to the field of die heat treatment technology. It includes a support frame, with a heat treatment chamber fixed to the top of the support frame. Several equally spaced pallet frames are mounted on a feed plate via snap-fit ​​components. Side extension plates are fixed to both side walls of each pallet frame. A locking component for clamping the side extension plates is installed on each support platform. A feed component for driving the linear movement of the feed plate is installed on the support frame. This invention uses the rotation of a threaded column to drive the lifting frame, support platform, and transmission side plate to rise and fall vertically. When the push rod pushes against the transmission side plate, the clamp can slide relative to the support platform and clamp and lock the side extension plates of the pallet frames. As the support platform moves upward, the stamping die on the pallet frame is lifted into the heat treatment chamber for heat treatment. The clamping and upward feeding operations of the pallet frames can be performed sequentially and continuously, significantly improving the heat treatment efficiency of the stamping die.

Description

Technical Field

[0001] This invention relates to the field of mold heat treatment technology, specifically a heat treatment device for stamping mold processing. Background Technology

[0002] Stamping dies are the core process equipment for metal sheet stamping. Utilizing the external force applied by a press, they cause the metal sheet to undergo plastic deformation within the die cavity, including separation, bending, stretching, and forming, thereby producing stamped parts with uniform specifications and stable precision in batches. Stamping dies are suitable for various metal sheets such as cold-rolled steel, stainless steel, and aluminum alloys, and are widely used in automotive parts, appliance housings, hardware accessories, and precision electronic components.

[0003] Heat treatment of stamping dies is an important process for improving the performance of die steel, increasing die precision, and extending die life. Stamping dies are subjected to impact, friction, and extrusion loads over long periods, making them prone to defects such as wear, chipping, deformation, and cracking. Through heat treatment, the internal metallographic structure of the material can be optimized, significantly improving the strength, toughness, and wear resistance of the die, reducing the frequency of die maintenance, and ensuring uniform dimensions and stable surface quality of stamped products. It is a key process for improving stamping production efficiency and reducing production costs.

[0004] Current heat treatment equipment for stamping dies is limited by the internal space of the heat treatment chamber. Stamping dies can only be placed into the chamber one by one for heat treatment, which cannot achieve orderly and automatic feeding and unloading of stamping dies. The feeding and unloading of dies mainly rely on manual operation, which not only increases the labor intensity and workload of operators, but also easily leads to problems such as misplacement and uneven placement. The process connection is time-consuming, the heat treatment operation is not continuous, and the overall heat treatment efficiency of stamping dies is low, which is difficult to match the production and processing needs of stamping dies. Therefore, in view of the above-mentioned technical defects of the existing technology, a heat treatment equipment for stamping die processing is provided to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a heat treatment device for stamping die processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A heat treatment device for stamping die processing includes a support frame, a heat treatment box fixed to the top of the support frame, a power mechanism installed at the bottom of the support frame, two threaded columns rotatably mounted on the support frame and driven to rotate by the power mechanism, each threaded column having a lifting frame threadedly sleeved on it and sliding vertically with the support frame, a support plate passing through the support frame, a feed plate slidably mounted on the support plate, several equally spaced pallet frames mounted on the feed plate via snap-fit ​​components, side wing extension plates fixed to the two side walls of each pallet frame, a support platform fixed to each of the two lifting frames, a locking component for clamping the side wing extension plates mounted on each support platform, a vertical channel corresponding vertically to the pallet frames opening at the bottom of the heat treatment box, and a feed component for driving the feed plate to move linearly mounted on the support frame.

[0007] As an improvement of the present invention: the locking assembly includes a clamp that is horizontally slidably mounted on a support platform, a connecting spring that is fixed between the clamp and the support platform, an inclined transmission side plate that is mounted on the side of the clamp away from the pallet frame, and a push rod that is vertically corresponding to the transmission side plate that is fixed at the bottom of the heat treatment box.

[0008] As an improvement of the present invention: the locking assembly further includes an adjusting stud that is horizontally mounted on the fixture via a threaded connection, the upper end of the transmission side plate is rotatably mounted on the fixture, a limit rod is fixed on the transmission side plate, an adjusting frame is slidably sleeved on the limit rod, a connecting seat is rotatably mounted on the end of the adjusting stud, and the end of the connecting seat away from the adjusting stud is hinged to the adjusting frame.

[0009] As an improvement of the present invention: the snap-fit ​​assembly includes a sleeve embedded and fixed on the side wing extension plate, each sleeve having a slidably installed insert block, a push spring fixed between the insert block and the sleeve, and a V-shaped slot adapted to snap-fit ​​the insert block on the side wall of the feed plate.

[0010] As an improvement of the present invention, the snap-fit ​​assembly further includes positioning snap-fit ​​blocks fixed to the side wall of the feed plate and arranged in pairs, with the side wing extension plate on each tray frame snap-fitted between each pair of positioning snap-fit ​​blocks.

[0011] As an improvement of the present invention: the feeding assembly includes a sliding frame slidably mounted on the bottom of the support plate, and one end of the sliding frame is equipped with a unidirectional propulsion assembly for pushing the feeding plate to move at equal intervals toward one side of the heat treatment box.

[0012] As an improvement of the present invention: the unidirectional propulsion assembly includes a vertically sliding column that slides through the sliding frame, a connecting plate is fixed to the top of the column, a spring ring sleeved on the column is fixed between the connecting plate and the sliding frame, an active wedge is fixed to the top of the connecting plate, and several equally spaced passive wedges are fixed to the bottom of the feed plate, with the active wedges engaging between two adjacent passive wedges.

[0013] As an improvement of the present invention: a stepper motor is fixed on the support frame, a wheel is coaxially fixed on the output shaft of the stepper motor, an eccentrically set pin is fixed on the top of the wheel, a transmission frame is fixed at the bottom of the sliding frame, and a strip-shaped slide is provided on the transmission frame to slide with the pin.

[0014] As an improvement of the present invention, an extension hole is provided on the support platform for the push rod to pass through.

[0015] As an improvement of the present invention: a guide rod is fixed to the bottom of the support plate, and the sliding frame is slidably sleeved on the guide rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses the rotation of the threaded column to drive the lifting frame, support platform, and transmission side plate to rise and fall vertically. When the push rod pushes against the transmission side plate, the clamp can slide relative to the support platform and clamp and lock the side wing extension plate of the pallet frame. As the support platform moves upward, the stamping die on the pallet frame is lifted into the heat treatment box for heat treatment. The clamping and upward feeding operations of the pallet frame can be carried out sequentially and continuously, and the heat treatment efficiency of the stamping die is significantly improved.

[0017] 2. This invention enables the feed assembly to drive the feed plate to move in a stepping manner, allowing the stamping dies on the pallet frame to move one by one to the bottom of the heat treatment chamber. By lifting the lifting frame and the fixture, the stamping dies are moved one by one into the heat treatment chamber for heat treatment. After heat treatment, the pallet frame and the stamping dies on it can be lowered and reset, and moved horizontally forward. During the heat treatment of the stamping dies, the labor intensity and workload of the operators are effectively reduced. The continuity of the heat treatment process, the orderly movement and placement of the stamping dies are significantly improved, and the heat treatment efficiency of the stamping dies is significantly improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from a certain perspective; Figure 3 For the present invention Figure 1 A schematic diagram of a partial structure; Figure 4 For the present invention Figure 3 A partial structural diagram; Figure 5 This is a schematic diagram showing the connection of components such as the clamp, transmission side plate, and support platform in this invention; Figure 6 This is a schematic diagram showing the connection of components such as the transmission side plate, adjusting frame, limiting rod, connecting seat, and adjusting stud in this invention; Figure 7This is a schematic diagram showing the connection between the clamp and the connecting spring in this invention; Figure 8 This is a schematic diagram showing the connection of components such as the feed plate, support plate, and feed assembly in this invention; Figure 9 For the present invention Figure 8 Exploded view of a partial structure; Figure 10 For the present invention Figure 9 Enlarged view of region A in the middle; Figure 11 For the present invention Figure 9 Exploded view of a partial structure; Figure 12 This is a schematic diagram showing the connection between the tray frame and the snap-fit ​​assembly of the present invention.

[0019] In the diagram: 1-Heat treatment box, 2-Support frame, 3-Support plate, 4-Feed plate, 5-Threaded column, 6-Panel frame, 7-Support platform, 8-Lifting frame, 9-Clamp, 10-Push rod, 11-Roller, 12-Stepper motor, 13-Sliding frame, 14-Transmission side plate, 15-Power mechanism, 16-Transmission frame, 17-V-shaped groove, 18-Vertical channel, 19-Connecting spring, 20-Adjusting frame, 21-Limit rod, 22-Connecting seat, 23-Adjusting stud, 24-Positioning block, 25-Sleeve, 26-Guide rod, 27-Pin, 28-Connecting plate, 29-Spring ring, 30-Sliding column, 31-Passive wedge, 32-Active wedge, 33-Insertion block, 34-Side wing extension plate, 35-Push spring, 36-Strip slide, 37-Extension hole. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0021] First embodiment: Please refer to the appendix Figure 1 - Appendix Figure 12 A heat treatment device for stamping die processing includes a support frame 2, a heat treatment box 1 fixed to the top of the support frame 2, a power mechanism 15 installed at the bottom of the support frame 2, two threaded columns 5 driven to rotate by the power mechanism 15 rotatably mounted on the support frame 2, a lifting frame 8 that slides vertically with the support frame 2 threadedly sleeved on each threaded column 5, a support plate 3 passing through the support frame 2, a feed plate 4 slidably mounted on the support plate 3, a number of equally spaced pallet frames 6 mounted on the feed plate 4 by a snap-fit ​​assembly, side wing extension plates 34 fixed on both side walls of each pallet frame 6, a support platform 7 fixed on each of the two lifting frames 8, a locking assembly for clamping the side wing extension plates 34 mounted on each support platform 7, a vertical channel 18 corresponding vertically to the pallet frame 6 opened at the bottom of the heat treatment box 1, and a feed assembly for driving the feed plate 4 to move linearly mounted on the support frame 2.

[0022] When performing heat treatment on stamping dies using this equipment, stamping dies of the same batch are placed one by one on each pallet 6. The feed assembly drives the feed plate 4 to move, so that the pallet 6 moves to a position that corresponds vertically to the vertical channel 18 at the bottom of the heat treatment chamber 1.

[0023] The power mechanism 15 drives the threaded column 5 to rotate, which in turn drives the threaded lifting frame 8, which is connected to it, to move vertically upward relative to the support frame 2. During the upward movement of the support platform 7 and the locking assembly, the side wing extension plate 34 is clamped and locked before the platform continues to move upward until the stamping die on the pallet frame 6 passes through the vertical channel 18 and enters the heat treatment chamber 1. At this point, the pallet frame 6 temporarily seals the vertical channel 18. After the heat treatment of the stamping die is completed, the power mechanism 15 drives the threaded column 5 to rotate in the opposite direction, causing the pallet frame 6 to move downward and reset. The locking assembly then resets and unlocks the pallet frame 6, facilitating the transport of the heat-treated stamping die on the pallet frame 6 to the next workstation.

[0024] Specifically, the locking assembly includes a clamp 9 that is horizontally slidably mounted on the support platform 7, a connecting spring 19 that is fixed between the clamp 9 and the support platform 7, an inclined transmission side plate 14 that is mounted on the side of the clamp 9 away from the tray frame 6, and a push rod 10 that is vertically corresponding to the transmission side plate 14 that is fixed at the bottom of the heat treatment box 1.

[0025] With the above structure and connection, as the transmission side plate 14 moves upward with the clamp 9 and the support platform 7, the transmission side plate 14 is pushed by the push rod 10 and moves toward the side wing extension plate 34. When the lower edge of the transmission side plate 14 abuts against the side wall of the push rod 10, the clamp 9 completes the clamping of the side wing extension plate 34. At this time, the clamp 9, the side wing extension plate 34 and the pallet frame 6 move upward to lift the stamping die into the heat treatment box 1 for heat treatment.

[0026] In addition, the locking assembly also includes an adjusting stud 23 that is horizontally mounted on the clamp 9 via a threaded connection, the upper end of the transmission side plate 14 is rotatably mounted on the clamp 9, a limit rod 21 is fixed on the transmission side plate 14, an adjusting frame 20 is slidably sleeved on the limit rod 21, a connecting seat 22 is rotatably mounted on the end of the adjusting stud 23, and the end of the connecting seat 22 away from the adjusting stud 23 is hinged to the adjusting frame 20.

[0027] By rotating the adjusting stud 23, it can be screwed in relative to the clamp 9. The adjusting stud 23 can drive the connecting seat 22 to move. The connecting seat 22 drives the adjusting frame 20 to slide relative to the limiting rod 21, thereby realizing the rotation adjustment of the transmission side plate 14. This facilitates the adjustment of the tilt angle of the transmission side plate 14 in the early stage, so that the transmission side plate 14 can be brought to the clamp 9 to stably clamp the side wing extension plate 34 after being pushed by the push rod 10.

[0028] The snap-fit ​​assembly in this device includes sleeves 25 embedded and fixed on the side wing extension plates 34. Each sleeve 25 has a sliding insert 33, and a push spring 35 is fixed between the insert 33 and the sleeve 25. The side wall of the feed plate 4 has a V-shaped slot 17 that is adapted to snap-fit ​​the insert 33. The snap-fit ​​assembly also includes positioning blocks 24 fixed to the side wall of the feed plate 4 and arranged in pairs. The side wing extension plates 34 on each tray frame 6 snap-fit ​​between each pair of positioning blocks 24.

[0029] With the above settings, during the process of installing the pallet frame 6 on the feed plate 4, the side wing extension plate 34 of each pallet frame 6 is engaged between two positioning blocks 24, wherein each pair of positioning blocks 24 is linearly distributed at equal intervals on the feed plate 4, which achieves the positioning effect for the installation of each pallet frame 6.

[0030] After the side wing extension plate 34 is engaged with the two positioning blocks 24, the insert block 33 corresponds to the V-shaped slot 17. Under the elastic action of the push spring 35, the insert block 33 and the feed plate 4 are stably connected and installed. The insert block 33 achieves a stable temporary positioning effect. When the clamp 9 holds the side wing extension plate 34 and moves upward, the insert block 33 can be smoothly moved out of the V-shaped slot 17 to achieve the separation effect of the feed plate 4. When the side wing extension plate 34 and the pallet frame 6 are reset, the insert block 33 and the feed plate 4 can be reconnected. The pallet frame 6 and the stamping die on it can achieve rapid and automatic determination of the work position before and after heat treatment, which greatly improves the operation efficiency of heat treatment.

[0031] Second embodiment: Please refer to the appendix Figure 1 -Appendix Figure 12 Based on the first embodiment, the feeding assembly further includes a sliding frame 13 slidably mounted on the bottom of the support plate 3. One end of the sliding frame 13 is equipped with a unidirectional propulsion assembly for pushing the feed plate 4 to move at equal intervals toward the heat treatment chamber 1. The unidirectional propulsion assembly includes a vertically sliding column 30 that slides through the sliding frame 13. A connecting plate 28 is fixed to the top of the column 30. A spring ring 29 sleeved on the column 30 is fixed between the connecting plate 28 and the sliding frame 13. An active wedge 32 is fixed to the top of the connecting plate 28. Several equally spaced passive wedges 31 are fixed to the bottom of the feed plate 4. The active wedge 32 is engaged between two adjacent passive wedges 31. In addition, a guide rod 26 is fixed to the bottom of the support plate 3, and the sliding frame 13 is slidably sleeved on the guide rod 26.

[0032] Among them, a stepper motor 12 is fixed on the support frame 2, and a rotating wheel 11 is coaxially fixed on the output shaft of the stepper motor 12. An eccentrically set pin 27 is fixed on the top of the rotating wheel 11. A transmission frame 16 is fixed at the bottom of the sliding frame 13. A strip-shaped slide 36 is opened on the transmission frame 16 to slide and adapt to the pin 27.

[0033] With the above settings, when the stepper motor 12 drives the rotating wheel 11 to rotate one revolution, the rotating wheel 11 drives the pin shaft 27 to rotate one revolution. During the sliding process of the pin shaft 27 in the strip slide 36, the sliding frame 13 slides back and forth once. When the active wedge 32 slides away from the heat treatment box 1, the active wedge 32 contacts the wedge surface of the passive wedge 31, and the feed plate 4 does not move. When the active wedge 32 slides towards the heat treatment box 1, the active wedge 32 pushes the passive wedge 31 to move, realizing the sliding of the feed plate 4 relative to the support plate 3. This enables the positioning block 24 to drive the transmission frame 16 to move directly below the vertical channel 18, making it convenient to move the stamping die on the transmission frame 16 into the heat treatment box 1 for heat treatment. The stamping die after the previous heat treatment also moves forward synchronously. The station switching operation of the stamping die is orderly and efficient, and the heat treatment operation efficiency is significantly improved.

[0034] In addition, an extension hole 37 is provided on the support platform 7 for the push rod 10 to pass through. By setting the extension hole 37, the push rod 10 can pass through easily, avoiding interference between the push rod 10 and the support platform 7 during the lifting process, and improving the stability and smoothness of the stamping die heat treatment movement process.

[0035] In summary, this invention drives the lifting frame 8, support platform 7, and transmission side plate 14 to rise and fall vertically through the rotation of the threaded column 5. When the push rod 10 pushes against the transmission side plate 14, the clamp 9 can slide relative to the support platform 7 and clamp and lock the side wing extension plate 34 of the pallet frame 6. As the support platform 7 moves upward, the stamping die on the pallet frame 6 is lifted into the heat treatment box 1 for heat treatment. The clamping and upward feeding operations of the pallet frame 6 can be carried out sequentially and continuously, and the heat treatment efficiency of the stamping die is significantly improved. This invention enables the feed plate 4 to move in a stepping manner through the feed assembly, allowing the stamping dies on the pallet frame 6 to move one by one to the bottom of the heat treatment chamber 1. By moving the lifting frame 8 and the clamp 9 upward, the stamping dies are moved one by one into the heat treatment chamber 1 for heat treatment. After heat treatment, the pallet frame 6 and the stamping dies on it can be moved downward to reset and moved horizontally forward. During the heat treatment of the stamping dies, the labor intensity and workload of the operators are effectively reduced, the continuity of the action connection in the heat treatment process and the orderly movement and placement of the stamping dies are significantly improved, and the heat treatment efficiency of the stamping dies is significantly improved.

[0036] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat treatment device for stamping die processing, comprising a support frame (2), a heat treatment box (1) fixed to the top of the support frame (2), and a power mechanism (15) installed at the bottom of the support frame (2), characterized in that, The support frame (2) is rotatably mounted with two threaded columns (5) driven to rotate by a power mechanism (15). Each threaded column (5) is threaded with a lifting frame (8) that slides vertically with the support frame (2). A support plate (3) runs through the support frame (2). A feed plate (4) is slidably mounted on the support plate (3). Several equally spaced pallet frames (6) are mounted on the feed plate (4) through a snap-fit ​​assembly. Side wing extension plates (34) are fixed on both sides of each pallet frame (6). A support platform (7) is fixed on each of the two lifting frames (8). A locking assembly for clamping the side wing extension plates (34) is installed on each support platform (7). A vertical channel (18) corresponding vertically to the pallet frame (6) is opened at the bottom of the heat treatment box (1). A feed assembly for driving the feed plate (4) to move linearly is installed on the support frame (2).

2. The heat treatment equipment for stamping die processing according to claim 1, characterized in that, The locking assembly includes a clamp (9) that is horizontally slidably mounted on the support platform (7), a connecting spring (19) that is fixed between the clamp (9) and the support platform (7), a transmission side plate (14) that is inclined is mounted on the side of the clamp (9) away from the tray frame (6), and a push rod (10) that is vertically corresponding to the transmission side plate (14) is fixed at the bottom of the heat treatment box (1).

3. The heat treatment equipment for stamping die processing according to claim 2, characterized in that, The locking assembly also includes an adjusting stud (23) that is horizontally mounted on the clamp (9) via a threaded connection. The upper end of the transmission side plate (14) is rotatably mounted on the clamp (9). A limit rod (21) is fixed on the transmission side plate (14). An adjusting frame (20) is slidably sleeved on the limit rod (21). A connecting seat (22) is rotatably mounted on the end of the adjusting stud (23). The end of the connecting seat (22) away from the adjusting stud (23) is hinged to the adjusting frame (20).

4. The heat treatment equipment for stamping die processing according to claim 1, characterized in that, The snap-fit ​​assembly includes a sleeve (25) embedded and fixed on the side wing extension plate (34). Each sleeve (25) has a slidably installed insert (33). A push spring (35) is fixed between the insert (33) and the sleeve (25). The side wall of the feed plate (4) has a V-shaped slot (17) adapted to snap-fit ​​the insert (33).

5. A heat treatment device for stamping die processing according to claim 4, characterized in that, The snap-fit ​​assembly also includes a pair of positioning snap-fit ​​blocks (24) fixed to the side wall of the feed plate (4), with the side wing extension plate (34) on each of the tray frames (6) snap-fitted between each pair of positioning snap-fit ​​blocks (24).

6. The heat treatment equipment for stamping die processing according to claim 1, characterized in that, The feeding assembly includes a sliding frame (13) slidably mounted on the bottom of the support plate (3), and one end of the sliding frame (13) is equipped with a unidirectional propulsion assembly for pushing the feeding plate (4) to move at equal intervals toward the heat treatment box (1).

7. A heat treatment device for stamping die processing according to claim 6, characterized in that, The unidirectional propulsion assembly includes a vertically sliding column (30) that slides through the sliding frame (13). A connecting plate (28) is fixed to the top of the sliding column (30). A spring ring (29) sleeved on the sliding column (30) is fixed between the connecting plate (28) and the sliding frame (13). An active wedge (32) is fixed to the top of the connecting plate (28). Several equally spaced passive wedges (31) are fixed to the bottom of the feed plate (4). The active wedge (32) is engaged between two adjacent passive wedges (31).

8. A heat treatment device for stamping die processing according to claim 6, characterized in that, A stepper motor (12) is fixed on the support frame (2). A rotating wheel (11) is coaxially fixed on the output shaft of the stepper motor (12). An eccentrically set pin (27) is fixed on the top of the rotating wheel (11). A transmission frame (16) is fixed at the bottom of the sliding frame (13). A strip-shaped slide (36) is opened on the transmission frame (16) to slide and adapt to the pin (27).

9. A heat treatment device for stamping die processing according to claim 1, characterized in that, The support platform (7) has an extension hole (37) through which the push rod (10) passes.

10. A heat treatment device for stamping die processing according to claim 6, characterized in that, The bottom of the support plate (3) is fixed with a guide rod (26), and the sliding frame (13) is slidably sleeved on the guide rod (26).

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