A die changing device for cold stamping dies

Abstract

The utility model discloses a concave die replacement device for cold stamping die belongs to cold stamping equipment technical field, this concave die replacement device for cold stamping die, including base, lower die seat, linear drive part, upper die seat, concave die and shift material subassembly. Through shift material subassembly can automatically realize with concave die from the inside of lower die seat automatic removal, and automation operation can greatly reduce the replacement time, and need not manual operation complicated operation to improve overall production efficiency, can accurately move concave die to correct position, ensure perfect matching with other die assembly, improve the accuracy and consistency of die, reduce the influence of artificial factor to the replacement process, improve the stability and reliability of production process.

Description

Technical Field

[0001] This utility model belongs to the technical field of cold stamping equipment, specifically relating to a die replacement device for cold stamping dies. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts. When cold stamping materials, the materials need to be stamped into the interior of the die to achieve the forming of the materials.

[0003] However, in the existing technology, when stamping materials into workpieces of different shapes, it is necessary to change different dies of different shapes. However, in the existing technology, when changing the die, it is necessary to manually move the die out of the stamping equipment with the help of a forklift. This method of changing the die is not only inefficient, but also reduces the stability of the replaced die inside the stamping equipment. This will affect the stamping quality and stamping efficiency when the material is stamped in the subsequent process. Utility Model Content

[0004] The purpose of this invention is to provide a die replacement device for cold stamping dies to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a die changing device for cold stamping dies, comprising:

[0006] Base;

[0007] The lower mold base is fixed to the upper surface of the base;

[0008] At least two linear drive components are fixed to the upper surface of the base and extend vertically.

[0009] The upper mold base is connected to the output end of the linear drive component;

[0010] The die cavity is slidably connected within the lower die holder;

[0011] and a transfer assembly, the transfer assembly comprising:

[0012] A fixing groove is formed in the base and a moving groove is formed in the lower mold base;

[0013] A drive motor is disposed within the fixed slot;

[0014] An adjusting screw is fixed to the output end of the drive motor;

[0015] The movable component is threadedly connected to the adjusting screw and extends vertically.

[0016] A fixing component is fixed to the bottom surface of the die cavity. The lower die base is provided with a sliding groove for the fixing component to slide, and the bottom surface of the fixing component is provided with an insertion groove for the top of the sliding component to be inserted.

[0017] Furthermore, the replacement device also includes a locking component, the locking component comprising:

[0018] A fixing plate set in a fixing groove and an inclined block set on the upper surface of the fixing plate;

[0019] A wedge, the lower surface of which is in contact with the upper surface of an inclined block and configured to move linearly in the vertical direction, and the moving member having a through groove for accommodating the wedge;

[0020] The locking rod has a locking slot on the side wall of the fixing member for inserting the locking rod, and the locking rod is configured to slide within the locking slot as the wedge moves up and down.

[0021] Furthermore, the locking component also includes:

[0022] The partition is fixed inside the through groove;

[0023] A movable plate is disposed in the through groove and located below the partition plate;

[0024] The mounting rod has one end connected to the wedge and the other end passing through the movable plate and the partition in sequence, and is fixedly connected to the movable plate.

[0025] A spring is sleeved on the mounting rod, and both ends of the spring are respectively connected to the movable plate and the partition plate;

[0026] A connecting rod, one end of which is connected to the mounting rod and the other end of which is connected to the locking rod.

[0027] Furthermore, the locking assembly also includes a push plate fixed to one end of the locking rod, and the push plate is connected to the connecting rod.

[0028] Furthermore, the replacement device also includes a stripping assembly, which includes a worm gear slidably connected to the outer wall of the adjusting screw. A limiting groove is formed inside the worm gear. A limiting protrusion is fixedly connected to the outer wall of the adjusting screw. The limiting protrusion is slidably connected to the inside of the limiting groove. An electric pneumatic rod is fixedly connected inside the base. A connecting plate is fixedly connected to the output end of the electric pneumatic rod. The connecting plate is slidably connected to the surface of the adjusting screw. The worm gear and the connecting plate are rotatably connected on the side that is close to each other.

[0029] Furthermore, the unloading assembly also includes a top-loading screw symmetrically rotatably connected inside the base. The outer wall of the top-loading screw is threaded with a top-loading screw sleeve. The surface of the top-loading screw is fixedly connected with a worm wheel that meshes with the worm gear. The interior of the base is symmetrically fixedly connected with connecting rods. The outer wall of the top-loading screw sleeve is fixedly connected with a limit plate. The limit plate is slidably connected to the outer wall of the connecting rod.

[0030] Furthermore, the unloading assembly also includes a top plate fixed to the top of the top of the top screw sleeve.

[0031] Furthermore, both the limiting groove and the limiting protrusion have a cross-shaped cross section.

[0032] Furthermore, the replacement device also includes a baffle fixed to the outer side of the lower mold base.

[0033] Furthermore, the linear drive component is a hydraulic cylinder.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] This application utilizes a material transfer component to automatically move the die cavity out of the lower die holder. Automated operation significantly reduces changeover time, eliminates the need for tedious manual operations, thereby improving overall production efficiency. It can accurately move the die cavity to the correct position, ensuring perfect matching with other mold components, improving the accuracy and consistency of the mold, reducing the impact of human factors on the changeover process, and enhancing the stability and reliability of the production process. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0038] Figure 3 This is a cross-sectional view of the internal structure of the base of the present invention;

[0039] Figure 4 This is a cross-sectional view of the internal structure of the lower mold base of the present invention;

[0040] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B;

[0041] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point C;

[0042] Figure 7 This is a cross-sectional view of the internal structure of the movable component of the present invention;

[0043] Figure 8 This is a schematic diagram of the die fitting structure of the present invention;

[0044] Figure 9 This is a schematic diagram of the material transfer assembly structure of the present invention.

[0045] In the picture:

[0046] 1. Base; 2. Lower mold base; 3. Linear drive component; 4. Upper mold base; 5. Die;

[0047] 601. Drive motor; 602. Adjusting screw; 603. Moving component; 604. Fixed component; 605. Moving slot; 606. Fixed slot; 607. Insertion slot;

[0048] 701. Fixed plate; 702. Inclined block; 703. Moving plate; 704. Mounting rod; 705. Limiting rod; 706. Push plate; 707. Locking rod; 708. Locking slot; 709. Connecting rod; 710. Spring; 711. Wedge; 712. Partition plate; 713. Through groove;

[0049] 801. Worm gear; 802. Limiting groove; 803. Limiting protrusion; 804. Electric pneumatic rod; 805. Connecting plate; 806. Ejector screw; 807. Worm wheel; 808. Ejector screw sleeve; 809. Limiting plate; 810. Connecting rod; 811. Ejector plate; 9. Baffle. Detailed Implementation

[0050] 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.

[0051] Reference Figure 1 A die changing device for cold stamping dies includes a base 1 and a lower die holder 2. The lower die holder 2 is fixedly connected to the upper surface of the base 1. A linear drive 3 (e.g., a hydraulic cylinder) is symmetrically fixedly connected to the upper surface of the base 1. An upper die holder 4 is fixedly connected to the top of the linear drive 3. A die 5 is slidably connected inside the lower die holder 2. A material transfer component for automatically transferring and feeding the die 5 is provided inside the base 1. A material ejection component for automatically ejecting the removed die 5 is provided inside the base 1. A locking component for automatically unlocking and locking the die 5 is provided on the material transfer component.

[0052] In some embodiments, refer to Figure 3 and Figure 4 The material transfer assembly includes a fixed groove 606 inside the base 1, a drive motor 601 fixedly connected inside the fixed groove 606, an adjusting screw 602 fixedly connected to the output shaft of the drive motor 601, a moving member 603 threadedly connected to the outer surface of the adjusting screw 602, a fixed member 604 fixedly connected to the bottom of the die 5, a moving groove 605 inside the lower die base 2, the bottom end of the fixed member 604 slidably connected inside the moving groove 605, an insertion groove 607 at the bottom of the fixed member 604, and the top end of the moving member 603 inserted into the insertion groove 607.

[0053] Reference Figure 3 , Figure 6 and Figure 7 The locking assembly includes a fixed plate 701 fixedly connected inside the fixed groove 606, an inclined block 702 fixedly connected to the upper surface of the fixed plate 701, a through groove 713 opened inside the moving member 603, the inclined block 702 and the fixed plate 701 located inside the through groove 713, a partition plate 712 fixedly connected inside the moving member 603, a moving plate 703 slidably connected inside the moving member 603, a mounting rod 704 fixedly connected inside the moving plate 703, a spring 710 sleeved on the outer wall of the mounting rod 704, and two ends of the spring 710 fixedly connected to the moving plate 703 and the partition plate 712 respectively. The bottom of the mounting rod 704 is fixedly connected to a wedge 711. The wedge 711 and the inclined block 702 are both set as inclined surfaces on the side that are close to each other. The moving component 603 is symmetrically fixedly connected to a limit rod 705. The surface of the limit rod 705 is symmetrically slidably connected to a push plate 706. The two push plates 706 are fixedly connected to a locking rod 707 on the side that is far away from each other. A connecting rod 709 is rotatably connected between the bottom of the limit rod 705 and the top of the mounting rod 704. The fixed component 604 is symmetrically provided with a locking slot 708. The end of the locking rod 707 away from the push plate 706 is inserted into the interior of the locking rod 707.

[0054] Reference Figure 3 , Figure 5 and Figure 9The unloading assembly includes a worm gear 801 slidably connected to the outer wall of the adjusting screw 602. A limiting groove 802 is formed inside the worm gear 801. A limiting protrusion 803 is fixedly connected to the outer wall of the adjusting screw 602, and the limiting protrusion 803 is slidably connected inside the limiting groove 802. An electric pneumatic rod 804 is fixedly connected inside the base 1. A connecting plate 805 is fixedly connected to the telescopic shaft of the electric pneumatic rod 804. The connecting plate 805 is slidably connected to the surface of the adjusting screw 602. The worm gear 801 and the connecting plate 805 are rotatably connected on the side closest to each other. Further, the unloading assembly also includes a top screw 806 symmetrically rotatably connected inside the base 1. The outer wall of the top screw 806 is threaded with a top screw sleeve 808. The surface of the top screw 806 is fixedly connected with a worm gear 807. The worm gear 807 and the worm 801 mesh with each other. The top end of the top screw sleeve 808 is fixedly connected with a top plate 811. The inside of the base 1 is symmetrically fixedly connected with a connecting rod 810. The outer wall of the top screw sleeve 808 is fixedly connected with a limit plate 809. The limit plate 809 is slidably connected to the outer wall of the connecting rod 810.

[0055] Reference Figure 8 The aforementioned movable groove 605 is composed of cross-shaped and rectangular grooves, and the fixing member 604 is composed of cross-shaped and rectangular rods.

[0056] Reference Figure 2 The cross sections of the aforementioned limiting groove 802 and limiting protrusion 803 are both cross-shaped.

[0057] A baffle 9 is fixedly connected to the outer side of the lower mold base 2.

[0058] The operating steps for the above-mentioned replacement device are as follows:

[0059] Step 1: Stop the operation of the stamping equipment and confirm the shutdown status;

[0060] Step 2: The die 5 is automatically moved out of the lower die holder 2 by the automatic start of the material transfer component;

[0061] Step 3: During the process of moving the die 5 out of the lower die holder 2, the die 5 is automatically unlocked by the unlocking component;

[0062] Step 4: The unlocked die 5 is continuously moved to the surface of the top plate 811 by the material transfer component;

[0063] Step 5: The die 5 is automatically ejected upwards from inside the lower die holder 2 by the stripping assembly;

[0064] Step Six: Automatic disengagement of die 5 is achieved by pushing the upper part of die 5, thus realizing automatic stripping.

[0065] Step 7: Remove the stripped die 5 using a forklift, place the replaced die 5 on the top plate 811, and perform a reverse operation to reset it, thus completing the replacement of the die 5.

[0066] Specifically, when the above-mentioned replacement device is in use, the operator first starts the drive motor 601 to drive the fixed adjusting screw 602 to rotate. The thread of the adjusting screw 602 causes the moving component 603 on the surface to move laterally. The movement of the moving component 603 drives the sleeved fixed component 604 to move synchronously. The movement of the fixed component 604 causes the fixed die 5 to move out of the lower die base 2, thereby realizing automatic material transfer of the die 5. The automated operation can greatly reduce the replacement time, eliminate the need for tedious manual operations, and improve the overall production efficiency. It can accurately move the die 5 to the correct position, ensure perfect matching with other mold components, improve the accuracy and consistency of the mold, reduce the impact of human factors on the replacement process, and improve the stability and reliability of the production process.

[0067] During the movement of the movable component 603, the bottom of the wedge 711 continuously slides on the inclined surface of the inclined block 702. As the die 5 moves out of the lower die base 2, when the inclined surface of the wedge 711 is at its highest point, the spring 710 is compressed. The inclined surface of the wedge 711 gradually moves from its high point to its low point. Without being resisted by the inclined surface of the inclined block 702, the wedge 711, through the compression and rebound force of the spring 710, pushes the movable plate 703 downwards. The downward movement of the movable plate 703 causes the internally fixed mounting rod 704 to slide down synchronously, allowing the mounting rod 704 to slide inside the partition plate 712. As the mounting rod 704 slides down, it pulls down the two connecting rods 709 rotatably connected to it at the top. The pulling force of the connecting rods 709 pulls the two rotatably connected push plates 706 towards each other. The surface of the positioning rod 705, and the two push plates 706 move towards each other, causing the fixed locking rod 707 to move synchronously, so that it disengages from the inside of the locking slot 708, thereby unlocking the fixed component 604. When locking the fixed component 604, the reverse operation can be performed to lock the fixed component 604. By automatically unlocking during the material transfer process of the die 5, and automatically locking the die 5 during the process of transporting the replaced die 5 into the lower die base 2, the automated unlocking and locking process is fast and accurate, which greatly reduces the time required to replace the die 5, improves production efficiency, eliminates the need for complicated manual unlocking and locking operations, makes the replacement of the die 5 simpler and more convenient, avoids the possibility of incorrect unlocking or insecure locking caused by human operation, improves the accuracy of replacement, and reduces the risk of injury to operators during the replacement process.

[0068] Meanwhile, when the moving member 603 moves laterally by adjusting the rotation of the screw 602, the unlocked die 5 and the fixed member 604, under the insertion action of the moving member 603, move laterally along with the moving member 603, causing the fixed member 604 and the die 5 to move out of the lower mold base 2. This continues until the cross-shaped position of the fixed member 604 is moved out of the cross-shaped groove of the moving groove 605. The moved die 5 and the fixed member 604 are then on the surface of the ejector plate 811, while the cross-shaped position of the fixed member 604 remains within the moving groove 605. When the cross groove is in place, it provides vertical positioning for the die 5 and the fixed component 604. Then, by activating the electric pneumatic rod 804, the fixed connecting plate 805 retracts. The movement of the connecting plate 805 causes the rotatably connected worm 801 to slide on the surface of the limiting protrusion 803, so that one end of the limiting protrusion 803 engages inside the limiting groove 802, causing the worm 801 and worm wheel 807 to mesh. Then, by adjusting the rotation of the screw 602, the limiting worm 801 rotates, and the rotation of the worm 801 causes the meshing worm wheel 807 to rotate synchronously. The rotation drives the fixed ejector screw 806 to rotate synchronously. The ejector screw 806's thread, connecting rod 810, and limiting plate 809 limit the ejector sleeve 808, allowing it to slide upwards. The upward movement of the ejector sleeve 808 pushes the fixed ejector plate 811 upwards, which in turn pushes the die 5 placed on its surface upwards. At this time, the cross-shaped position of the fixing member 604 moves away from the cross-shaped groove of the moving groove 605, releasing the vertical limitation between the die 5 and the fixing member 604. Therefore, the ejector plate 811 connects the die 5 and the fixed member 604... When component 604 is pushed upwards synchronously, automatic material removal between the fixed component 604 and the moving component 603 can be achieved. The ejected and unlocked die 5 can be quickly ejected and detached, realizing automatic material removal. The automated ejection and detachment process is rapid, reducing manual operation time, improving the efficiency of die 5 replacement, avoiding the risk of injury that may occur during manual operation, ensuring the personal safety of operators, and precisely controlling the force and position of ejection to ensure smooth detachment of die 5, reducing the risk of damage. Automatic operation avoids errors caused by human factors and improves the accuracy of die 5 replacement.

[0069] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die changing device for cold stamping dies, characterized in that, include: Base (1); The lower mold base (2) is fixed to the upper surface of the base (1); At least two linear drive members (3) are fixed to the upper surface of the base and extend in the vertical direction; The upper mold base (4) is connected to the output end of the linear drive (3); The die (5) is slidably connected within the lower die base (2); and a transfer assembly, the transfer assembly comprising: A fixing groove (606) is formed in the base (1) and a moving groove (605) is formed in the lower mold base (2); A drive motor (601) is disposed in the fixing slot (606); An adjusting screw (602) is fixed to the output end of the drive motor (601); The movable component (603) is threadedly connected to the adjusting screw (602) and extends vertically. A fixed component (604) is fixed to the bottom surface of the die (5). The lower die base (2) is provided with a sliding groove (605) for the fixed component (604) to slide, and the bottom surface of the fixed component (604) is provided with an insertion groove (607) for the top of the sliding component (603) to be inserted.

2. The die changing device for cold stamping dies according to claim 1, characterized in that: The replacement device also includes a locking component, the locking component comprising: A fixing plate (701) is provided in the fixing groove (606) and an inclined block (702) is provided on the upper surface of the fixing plate (701). A wedge (711) has its lower surface in contact with the upper surface of an inclined block (702) and is configured to move linearly in the vertical direction, and the moving member (603) has a through groove (713) for accommodating the wedge (711). The locking rod (707) has a locking slot (708) on the side wall of the fixing member (604) for inserting the locking rod (707), and the locking rod (707) is configured to slide in the locking slot (708) as the wedge (711) moves up and down.

3. A die changing device for cold stamping dies according to claim 2, characterized in that: The locking component also includes: The partition (712) is fixed in the through groove (713); A movable plate (703) is disposed in the through groove (713) and located below the partition plate (712); Mounting rod (704), one end of which is connected to wedge (711), and the other end passes through moving plate (703) and partition (712) in sequence, and is fixedly connected to moving plate (703); A spring (710) is sleeved on the mounting rod (704), and the two ends of the spring (710) are respectively connected to the movable plate (703) and the partition plate (712). A connecting rod (709), one end of which is connected to the mounting rod (704) and the other end of which is connected to the locking rod (707).

4. A die changing device for cold stamping dies according to claim 3, characterized in that: The locking assembly also includes a push plate (706) fixed to one end of the locking rod (707), and the push plate (706) is connected to the connecting rod (709).

5. A die changing device for cold stamping dies according to claim 3, characterized in that: The replacement device also includes a stripping assembly, which includes a worm gear (801) slidably connected to the outer wall of the adjusting screw (602). A limiting groove (802) is provided inside the worm gear (801). A limiting protrusion (803) is fixedly connected to the outer wall of the adjusting screw (602). The limiting protrusion (803) is slidably connected to the inside of the limiting groove (802). An electric pneumatic rod (804) is fixedly connected inside the base (1). A connecting plate (805) is fixedly connected to the output end of the electric pneumatic rod (804). The connecting plate (805) is slidably connected to the surface of the adjusting screw (602). The worm gear (801) and the connecting plate (805) are rotatably connected on the side that is close to each other.

6. A die changing device for cold stamping dies according to claim 5, characterized in that: The unloading assembly also includes a top screw (806) symmetrically rotatably connected inside the base (1). The outer wall of the top screw (806) is threaded with a top screw sleeve (808). The surface of the top screw (806) is fixedly connected with a worm wheel (807) that meshes with the worm (801). The interior of the base (1) is symmetrically fixedly connected with a connecting rod (810). The outer wall of the top screw sleeve (808) is fixedly connected with a limiting plate (809). The limiting plate (809) is slidably connected to the outer wall of the connecting rod (810).

7. A die changing device for cold stamping dies according to claim 6, characterized in that: The unloading assembly also includes a top plate (811) fixed to the top of the top of the top screw sleeve (808).

8. A die changing device for cold stamping dies according to claim 5, characterized in that: The cross-sections of the limiting groove (802) and the limiting protrusion (803) are both cross-shaped.

9. A die changing device for cold stamping dies according to claim 1, characterized in that: The replacement device also includes a baffle (9) fixed to the outer side of the lower mold base (2).

10. A die changing device for cold stamping dies according to claim 1, characterized in that: The linear drive component (3) is a hydraulic cylinder.

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