Clamping tool for separating inner mold core from outer mold core

Abstract

The utility model belongs to the technical field of space ring part machining, and particularly discloses a clamping tool for separating an inner mold core and an outer mold core, which comprises a clamping table, a clamping assembly is arranged in the clamping table, and the clamping assembly comprises a driving part and a clamping part; the driving part is used for driving the clamping part to clamp the inner and outer mold cores; the clamping component comprises L-shaped plates, the number of the L-shaped plates is two, the bottoms of the two L-shaped plates are both fixedly connected with connecting rods, and a sliding groove is formed in the clamping table. Through the arrangement of the clamping assembly, the moving distance and the clamping force of the clamping plates can be accurately controlled, a worm gear and a worm have the self-locking characteristic, and the clamping effect is good. Fine adjustment can be achieved, the stable state can be kept after clamping, the situation that a mold core is loosened or damaged due to unstable clamping force in the separation process is effectively avoided, and the safety and reliability of separation operation are improved.

Description

Technical Field

[0001] This application relates to the field of spacer part processing technology, and more specifically, to a clamping fixture for separating inner and outer mold cores. Background Technology

[0002] In the field of modern mold manufacturing, the machining of spacer components is a crucial step. Spacer components consist of an inner mold core and an outer mold core, and their structural characteristics dictate that the inner and outer mold cores must be separated before subsequent precision machining operations can proceed. However, separating the inner and outer mold cores currently faces significant challenges. Because both inner and outer mold cores have very high precision requirements, they are tightly fitted together during mold assembly. This combination of high precision and tight fit makes separation extremely difficult.

[0003] Traditional separation methods often rely on manual operation or simple auxiliary tools. During the separation process, the lack of specialized and effective tooling makes it difficult to precisely control the separation force and direction. This not only easily leads to damage to parts during separation, resulting in waste of raw materials and increased costs, but also significantly impacts the efficiency of the entire processing flow due to the cumbersome and inefficient separation process, extending the product production cycle and failing to meet the ever-growing demand for high-efficiency production. Therefore, there is an urgent need for a specialized clamping fixture for separating inner and outer mold cores to solve these problems. Utility Model Content

[0004] To address the aforementioned problems, this application provides a clamping fixture for separating inner and outer mold cores.

[0005] The clamping fixture for separating inner and outer mold cores provided in this application adopts the following technical solution:

[0006] A clamping fixture for separating inner and outer mold cores includes a clamping platform, and a clamping assembly is provided inside the clamping platform. The clamping assembly includes a driving component and a clamping component.

[0007] The driving component is used to drive the clamping component to clamp the inner and outer mold cores;

[0008] The clamping component includes two L-shaped plates. The bottom of each L-shaped plate is fixedly connected to a connecting rod. The inside of the clamping platform is provided with a sliding groove. The two connecting rods are slidably connected to the corresponding sliding grooves. A clamping plate is fixedly connected to one side of each L-shaped plate facing each other. The two clamping plates are used to clamp the inner and outer mold cores.

[0009] Through the above technical solutions, the clamping assembly can precisely control the moving distance and clamping force of the clamping plate. The worm gear has a self-locking characteristic, which can achieve fine adjustment and maintain a stable state after clamping. This effectively avoids the mold core from loosening or being damaged due to unstable clamping force during the separation process, thus improving the safety and reliability of the separation operation.

[0010] Furthermore, the driving component includes a bidirectional threaded rod, the inside of the clamping platform has a cavity, both connecting rods are slidably connected to the cavity, the bidirectional threaded rod is rotatably connected to the cavity, and the outer wall of the bidirectional threaded rod is threaded with two sliders, both of which are slidably connected to the cavity. A placement box is provided on one side of the clamping platform, and one end of the bidirectional threaded rod extends through into the interior of the placement box and is fixedly connected to a worm gear.

[0011] Furthermore, a worm gear is rotatably connected inside the placement box. One end of the worm gear extends through to the outside of the handle and is fixedly connected to the handle. The worm wheel meshes with the worm gear.

[0012] Furthermore, the two sliders are fixedly connected to the corresponding connecting rods, and the top of the clamping platform is provided with a ring, which is located inside the two clamping plates.

[0013] Furthermore, the top of the clamping platform is provided with an intermediate cylinder, the outer wall of the intermediate cylinder is provided with an outer flexible layer, and the bottom of the clamping platform is provided with an ejection component.

[0014] Furthermore, the ejection assembly includes an adjustment component and an ejection component. The adjustment component includes a connecting box located at the bottom of the clamping platform. The interior of the connecting box is connected to a gear via a rotating shaft. Both sides of the gear are provided with rack plates. One end of each rack plate is provided with a transmission rod. The top of each transmission rod is fixedly connected to a connecting plate. The interior of the connecting box has two sliding grooves. The two rack plates are slidably connected to the corresponding sliding grooves. The top of the connecting box has two through slots. The two connecting plates are slidably connected to the corresponding through slots. The top of each connecting plate is fixedly connected to a push plate.

[0015] Furthermore, the ejector component includes a cylinder, the output end of which is fixedly connected to a connecting box. Both ends of the connecting box are fixedly connected to blocks. The bottom ends of the clamping table are provided with sliding grooves, and the two blocks are slidably connected to the corresponding sliding grooves respectively.

[0016] Through the above technical solution, the ejector component can adapt to inner and outer mold cores of different sizes, ensuring that mold cores of different sizes can be ejected. Furthermore, the ejector plate can rise vertically and stably, ensuring that the upward thrust applied to the inner mold core is accurate. This precise directional control can prevent the inner mold core from being damaged due to uneven force or directional deviation during the separation process, and also helps to improve the separation efficiency.

[0017] Furthermore, the clamping platform has two ejector slots inside, which are located directly above the corresponding push plates.

[0018] Furthermore, limit blocks are fixedly connected to both ends of the two connecting plates, and two limit slots are opened inside each through slot of the connecting box, with each limit block slidingly connected to the corresponding limit slot.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] (1) By setting the clamping components, this utility model can accurately control the moving distance and clamping force of the clamping plate. The worm gear has a self-locking characteristic, which can achieve fine adjustment and maintain a stable state after clamping. It effectively avoids the mold core from loosening or being damaged due to unstable clamping force during the separation process, and improves the safety and reliability of the separation operation.

[0021] (2) By setting the ejection component, this utility model can adapt to inner and outer mold cores of different sizes, ensuring that mold cores of different sizes can be ejected, and the ejector plate can rise vertically in a stable manner, ensuring that the upward thrust applied to the inner mold core is accurate. This precise directional control can prevent the inner mold core from being damaged due to uneven force or directional deviation during the separation process, and also helps to improve the separation efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the present invention;

[0024] Figure 3 This is a plan view of the present invention;

[0025] Figure 4 This is a schematic diagram of the overall structure of the clamping assembly of this utility model;

[0026] Figure 5 This is a schematic diagram of the overall structure of the launching component of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Clamping platform; 2. Connecting box; 3. Intermediate cylinder; 4. Outer flexible layer; 5. Cylinder; 6. Push plate; 7. Limiting groove; 8. L-shaped plate; 9. Placement box; 10. Clamping plate; 11. Ring; 12. Connecting rod; 13. Worm gear; 14. Worm; 15. Rotating handle; 16. Bidirectional threaded rod; 17. Slider; 18. Connecting plate; 19. Transmission rod; 20. Block; 21. Gear; 22. Rack plate; 23. Limiting block. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] Reference Figures 1-5 A clamping fixture for separating inner and outer mold cores includes a clamping table 1, and a clamping assembly is provided inside the clamping table 1. The clamping assembly includes a driving component and a clamping component.

[0030] The driving component is used to drive the clamping component to clamp the inner and outer mold cores;

[0031] The clamping component includes an L-shaped plate 8, and there are two L-shaped plates 8. The bottom of each L-shaped plate 8 is fixedly connected to a connecting rod 12. The inside of the clamping table 1 is provided with a sliding groove. The two connecting rods 12 are slidably connected to the corresponding sliding grooves. The two L-shaped plates 8 are fixedly connected to a clamping plate 10 on opposite sides. The two clamping plates 10 are used to clamp the inner and outer mold cores.

[0032] When clamping the inner and outer mold cores is required, the operator rotates the handle 15, which drives the worm 14 to rotate. Since the worm 14 meshes with the worm wheel 13, the rotation of the worm 14 drives the worm wheel 13 to rotate. The worm wheel 13 is fixedly connected to one end of the double-threaded rod 16, so the double-threaded rod 16 rotates together with the worm wheel 13.

[0033] When the bidirectional threaded rod 16 rotates, the two sliders 17 connected by threads on its outer wall will move towards each other along the axial direction of the bidirectional threaded rod 16 in the cavity. The movement of the two sliders 17 towards each other will cause the two connecting rods 12 to slide in the cavity and the groove accordingly.

[0034] Since the two L-shaped plates 8 are fixed to the two connecting rods 12 respectively, the two L-shaped plates 8 will move towards each other as the connecting rods 12 move, thereby enabling the clamping plate 10 fixed on the opposite side of the two L-shaped plates 8 to clamp or release the inner and outer mold cores. In the clamped state, subsequent separation operations of the inner and outer mold cores can be performed, for example, by using an external ejection component to separate the clamped mold cores.

[0035] The clamping components allow for precise control of the clamping plate's movement distance and clamping force. The worm gear has a self-locking characteristic, enabling fine-tuning and maintaining a stable state after clamping. This effectively prevents the mold core from loosening or being damaged due to unstable clamping force during separation, thus improving the safety and reliability of the separation operation.

[0036] Reference Figures 1-4The driving component includes a bidirectional threaded rod 16. The clamping table 1 has a cavity inside. Both connecting rods 12 are slidably connected to the cavity. The bidirectional threaded rod 16 is rotatably connected to the cavity. Two sliders 17 are threadedly connected to the outer wall of the bidirectional threaded rod 16. Both sliders 17 are slidably connected to the cavity. A placement box 9 is provided on one side of the clamping table 1. One end of the bidirectional threaded rod 16 extends through the interior of the placement box 9 and is fixedly connected to a worm gear 13. A worm 14 is rotatably connected inside the placement box 9. One end of the worm 14 extends through the exterior of the rotating handle 15 and is fixedly connected to the rotating handle 15. The worm gear 13 meshes with the worm 14.

[0037] Reference Figures 1-3 Two sliders 17 are fixedly connected to the corresponding connecting rods 12 respectively. The top of the clamping platform 1 is provided with a ring 11, which is located inside the two clamping plates 10. The top of the clamping platform 1 is provided with an intermediate cylinder 3, and the outer wall of the intermediate cylinder 3 is provided with an outer flexible layer 4. The bottom of the clamping platform 1 is provided with an ejection assembly.

[0038] When separating the inner and outer mold cores, the inner and outer mold cores are first placed on the outer wall of the outer flexible layer 4. The outer flexible layer 4 has a certain elastic deformation, so it can adapt to inner and outer mold cores of different sizes and specifications. After placement, it can play a preliminary role in fixing the inner and outer mold cores.

[0039] Reference Figures 3-5 The ejection assembly includes an adjustment component and an ejection component. The adjustment component includes a connecting box 2, which is located at the bottom of the clamping platform 1. A gear 21 is connected to the inside of the connecting box 2 via a rotating shaft. A rack plate 22 is provided on both sides of the gear 21. A transmission rod 19 is provided at one end of each rack plate 22. A connecting plate 18 is fixedly connected to the top of each transmission rod 19. Two sliding grooves are opened inside the connecting box 2. The rack plate 22 is slidably connected to the corresponding sliding groove. Two through grooves are opened at the top of the connecting box 2. The two connecting plates 18 are slidably connected to the corresponding through groove. A push plate 6 is fixedly connected to the top of each connecting plate 18. The ejection component includes a cylinder 5. The output end of the cylinder 5 is fixedly connected to the connecting box 2. Blocks 20 are fixedly connected to both ends of the connecting box 2. Sliding grooves are opened at both ends of the bottom of the clamping platform 1. The two blocks 20 are slidably connected to the corresponding sliding grooves.

[0040] After the inner and outer mold cores are clamped, the inner mold core needs to be pushed out. An optical interference sensor (existing technology, not shown in the figure) is installed on the inner side of the push plate 6. The optical path of the optical interference sensor is designed to distinguish between the inner and outer mold cores. For example, an optical path is set on the push plate 6 so that a beam of light surrounds the area where the inner mold core may appear. When the inner mold core enters the optical path, because it is located inside the outer mold core and its position is closer to the center, it will cause specific interference to the optical path, resulting in a different change pattern of interference fringes than the outer mold core. By observing and analyzing the changes in the interference fringes, such as the direction and amount of movement of the fringes, it is determined that it is the inner mold core. At this time, a signal is sent to the controller (existing technology, not shown in the figure), and the sensor controls the motor (existing technology, not shown in the figure) to move the push plate 6 to the corresponding position.

[0041] When moving, the motor (not shown in the figure, as it is existing technology) is located on one side of the shaft of gear 21, and its output end is fixedly connected to the shaft of gear 21. When the optical interference sensor sends a signal to the controller, the controller's command is transmitted to the motor, and the motor starts running after receiving the command. Since the output end of the motor is fixedly connected to the shaft of gear 21, the rotation of the motor will drive the shaft of gear 21 to rotate, thereby causing gear 21 to start rotating. When gear 21 rotates, its two sides mesh with two rack plates 22 respectively. Depending on the direction of rotation of the gear, it will drive the two rack plates 22 to move relative to or away from each other in the sliding groove inside the connecting box 2. For example, if the gear rotates clockwise, it may cause the two rack plates 22 to move towards each other.

[0042] The transmission rod 19 at one end of the rack plate 22 moves synchronously with the movement of the rack plate 22, and the connecting plate 18 fixed to the top of the transmission rod 19 also moves accordingly. Since the connecting plate 18 is slidably connected to the through groove at the top of the connecting box 2, the connecting plate 18 can only move in the vertical direction.

[0043] The push plate 6, which is fixedly connected to the top of the two connecting plates 18, moves with the movement of the connecting plates 18. Under the continuous drive of the motor, the push plate 6 gradually moves to the bottom of the inner mold core, thus preparing for the subsequent ejection operation of the inner mold core.

[0044] The cylinder 5 in the ejector component begins to operate. The output end of cylinder 5 pushes the connecting box 2 to move as a whole. Since the blocks 20 at both ends of the connecting box 2 are slidably connected to the grooves at the bottom of the clamping table 1, the connecting box 2 can move smoothly upward in the horizontal direction (towards the inner mold core). The push plate 6 continues to rise, applying an upward pushing force to the inner mold core. Because the clamping assembly has already tightly clamped the inner and outer mold cores, the inner mold core, under the pushing force of the push plate 6, begins to overcome the friction and other connecting forces between itself and the outer mold core, and moves upward along the outer wall of the intermediate cylinder 3, thereby achieving the separation of the inner and outer mold cores. After the inner mold core is pushed upward a certain distance by the push plate 6, a robotic arm (existing technology, not shown in the figure) is provided on one side of the clamping seat 1. The robotic arm receives a signal and starts to start. Through the rotation of the joints and the extension of the connecting rods, the robotic arm moves the end gripper to a suitable position above the inner mold core. Then the gripper closes, clamping the inner mold core. Afterward, the robotic arm lifts the inner mold core and removes it, for example, to a nearby collection container or the worktable of the next processing step.

[0045] Reference Figures 1-5 The clamping platform 1 has two ejector slots inside, which are located directly above the corresponding push plate 6. Both ends of the two connecting plates 18 are fixedly connected to limit blocks 23. Each through slot of the connecting box 2 has two limit slots 7 inside, and each limit block 23 is slidably connected to the corresponding limit slot 7.

[0046] The limiting block 23 limits the movement of the two rack plates 22, making their movement more stable.

[0047] Working principle: First, the inner and outer mold cores are fitted onto the outer wall of the outer flexible layer 4. The outer flexible layer 4 initially fixes the inner and outer mold cores for clamping operations through elastic deformation (when the inner mold core is pushed out, the inner mold core is pushed upward by the push plate 6. This push force is designed to overcome the friction and other connecting forces between the inner and outer mold cores. The elastic force of the outer flexible layer 4 is very small compared to this and will not significantly hinder the process of the push plate 6 pushing the inner mold core). The operator rotates the handle 15, which drives the worm gear 14 to rotate. The worm gear 14 drives the worm wheel 13, which meshes with it, to rotate, thereby causing the bidirectional threaded rod 16 to rotate. The two sliders 17 on the bidirectional threaded rod 16 move towards each other in the cavity, driving the connecting rod 12 and the L-shaped plate 8 to move, so that the clamping plate 10 clamps the inner and outer mold cores. The worm wheel and worm gear structure can precisely control the clamping force and maintain stability.

[0048] After clamping, the optical interference sensor inside the push plate 6 activates, its optical path surrounding the area where the inner mold core may appear. When the inner mold core enters the optical path, its position near the center causes the interference fringes to exhibit a different pattern than those of the outer mold core. The sensor transmits a signal to the controller, which then instructs the motor to start. The motor drives the shaft of gear 21 to rotate, causing gear 21 to rotate and driving the rack plates 22 on both sides to move. Through the transmission rod 19 and the connecting plate 18, the push plate 6 is moved to directly below the inner mold core.

[0049] Next, cylinder 5 is activated, pushing connecting box 2 to move horizontally upward along the bottom slide groove of clamping table 1. Push plate 6 rises accordingly, applying an upward pushing force to the inner mold core. Under the action of the clamping assembly, the inner mold core overcomes the frictional force with the outer mold core and moves upward along the outer wall of intermediate cylinder 3 to achieve separation. After separating a certain distance, the robotic arm on one side of clamping seat 1 receives a signal and starts. Through joint rotation and linkage extension, it moves the end gripper to a suitable position above the inner mold core. The gripper closes and clamps the inner mold core. Finally, the robotic arm lifts and removes the inner mold core, thus completing the separation of inner and outer mold cores and the transfer process of the inner mold core. This tooling achieves highly efficient and stable and reliable separation of inner and outer mold cores through the cooperation of various components.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping tool for separating inner and outer core shots, characterized in that, include: A clamping table (1) is provided inside the clamping table (1), and the clamping assembly includes a driving component and a clamping component; The driving component is used to drive the clamping component to clamp the inner and outer mold cores; The clamping component includes an L-shaped plate (8), and the number of the L-shaped plates (8) is set to two. The bottom of each of the two L-shaped plates (8) is fixedly connected to a connecting rod (12). The clamping platform (1) has a sliding groove inside. The two connecting rods (12) are slidably connected to the corresponding sliding grooves respectively. The two L-shaped plates (8) are fixedly connected to a clamping plate (10) on opposite sides. The two clamping plates (10) are used to clamp the inner and outer mold cores.

2. The holding tool for separating the inner and outer mold blocks according to claim 1, wherein: The driving component includes a bidirectional threaded rod (16), the clamping platform (1) has a cavity inside, the two connecting rods (12) are slidably connected to the cavity, the bidirectional threaded rod (16) is rotatably connected to the cavity, the outer wall of the bidirectional threaded rod (16) is threaded with two sliders (17), the two sliders (17) are slidably connected to the cavity, a placement box (9) is provided on one side of the clamping platform (1), and one end of the bidirectional threaded rod (16) extends through into the interior of the placement box (9) and is fixedly connected with a worm gear (13).

3. The holding tool for separating the inner and outer mold blocks according to claim 2, wherein: The placement box (9) is rotatably connected to a worm (14). One end of the worm (14) extends through to the outside of the handle (15) and is fixedly connected to the handle (15). The worm wheel (13) meshes with the worm (14).

4. The holding tool for separating the inner and outer mold blocks according to claim 2, wherein: The two sliders (17) are fixedly connected to the corresponding connecting rods (12) respectively. The top of the clamping platform (1) is provided with a ring (11), which is located inside the two clamping plates (10).

5. The holding tool for separating the inner and outer mold blocks according to claim 1, wherein: The clamping platform (1) has an intermediate cylinder (3) at its top, an outer flexible layer (4) on its outer wall, and an ejection assembly at its bottom.

6. A holding tool for separating inner and outer core pieces according to claim 5, characterized in that: The ejection assembly includes an adjustment component and an ejection component. The adjustment component includes a connecting box (2), which is located at the bottom of the clamping platform (1). The interior of the connecting box (2) is connected to a gear (21) via a rotating shaft. Both sides of the gear (21) are provided with rack plates (22). One end of each rack plate (22) is provided with a transmission rod (19). The top of each transmission rod (19) is fixedly connected to a connecting plate (18). The interior of the connecting box (2) has two sliding grooves. The two rack plates (22) are slidably connected to the corresponding sliding grooves. The top of the connecting box (2) has two through slots. The two connecting plates (18) are slidably connected to the corresponding through slots. The top of each connecting plate (18) is fixedly connected to a push plate (6).

7. A holding tool for separating inner and outer core pieces according to claim 6, characterized in that: The ejection component includes a cylinder (5), the output end of which is fixedly connected to the connecting box (2), and both ends of the connecting box (2) are fixedly connected to blocks (20). The bottom ends of the clamping table (1) are provided with sliding grooves, and the two blocks (20) are slidably connected to the corresponding sliding grooves respectively.

8. The holding tool for separating the inner and outer mold blocks according to claim 6, wherein: The clamping platform (1) has two ejector slots inside, and the two ejector slots are located directly above the corresponding push plate (6).

9. The holding tool for separating the inner and outer core according to claim 6, wherein: Both ends of the two connecting plates (18) are fixedly connected to limit blocks (23), and each through slot of the connecting box (2) has two limit slots (7) inside, and each limit block (23) is slidably connected to the corresponding limit slot (7).

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