Quick dismounting structure of gearbox injection mold

Abstract

The utility model discloses a quick dismounting structure of a gearbox injection mold, which comprises a mold frame and a mounting frame, a mold core is arranged in the mold frame, a fixing frame is fixedly mounted in the mold frame, a positioning frame is arranged on the fixing frame, four groups of symmetrically distributed positioning blocks are arranged on the positioning frame, and the mounting frame is fixedly mounted on the mold core. Four groups of symmetrically distributed positioning grooves are formed in the outer side of the mold core, two groups of symmetrically distributed first push rods are slidably mounted in the positioning frame, two groups of symmetrically distributed second push rods are slidably mounted in the positioning frame, and first double-rod hydraulic cylinders are arranged between the two groups of first push rods and the two groups of second push rods; the distance between the two sets of first push rods and the two sets of second push rods is rapidly adjusted through the arranged first double-rod hydraulic cylinder, then the distance between the four sets of positioning blocks is rapidly adjusted in cooperation with the four sets of adjusting rods, and the mold core on the mold frame is rapidly assembled or disassembled in cooperation with a positioning groove in the mold core.

Description

Technical Field

[0001] This utility model relates to the field of gearbox injection mold technology, specifically a quick disassembly structure for a gearbox injection mold. Background Technology

[0002] The gearbox bears the force from the wind turbine and the reaction force generated during gear transmission. It must have sufficient rigidity to withstand the force and torque, prevent deformation, and ensure transmission quality. The design of the gearbox housing should be based on the layout, processing and assembly conditions, and ease of inspection and maintenance requirements of the wind turbine power transmission. Injection molds play an irreplaceable core role in gearbox production.

[0003] In the existing technology, the injection mold core used for gearbox production is not easy to disassemble. When producing different models of gearboxes, the entire mold needs to be replaced, which is time-consuming and inefficient. Furthermore, when the internal structure of the mold is damaged during use, repair and maintenance require a lot of time. Utility Model Content

[0004] The purpose of this invention is to provide a quick-disassembly structure for a gearbox injection mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-disassembly structure for a gearbox injection mold, comprising a mold frame and a mounting frame. The mold frame contains a mold core, and a fixing frame is fixedly installed within the mold frame. A positioning frame is mounted on the fixing frame, and four sets of symmetrically distributed positioning blocks are mounted on the positioning frame. Four sets of symmetrically distributed positioning grooves are opened on the outer side of the mold core, with the positioning grooves corresponding to the positioning blocks. The positioning blocks are movably engaged with the mold core through the positioning grooves. Adjusting rods are fixedly installed on each of the four sets of positioning blocks. Two sets of symmetrically distributed first push rods are slidably installed within the positioning frame, and two sets of symmetrically distributed second push rods are slidably installed within the positioning frame. The four sets of adjusting rods are slidably connected to one set of first push rods and one set of second push rods, respectively. A first double-rod hydraulic cylinder is provided between each of the two sets of first push rods and the two sets of second push rods.

[0006] As a further preferred embodiment of this technical solution, the positioning frame is slidably connected to the mold frame, the two sets of first push rods and second push rods are vertically distributed, the two sets of first push rods are respectively fixedly connected to the output end of the piston rod of the corresponding first double-rod hydraulic cylinder, and the two sets of second push rods are respectively fixedly connected to the output ends of the two sets of piston rods of the corresponding first double-rod hydraulic cylinder.

[0007] As a further preferred embodiment of this technical solution, two sets of cross-distributed brackets are symmetrically installed between the positioning frame and the fixing frame, and two sets of symmetrically distributed fixing blocks are fixedly installed inside the positioning frame. Both sets of brackets are rotatably connected to the corresponding fixing blocks through a rotating shaft, and a second double-rod hydraulic cylinder is fixedly installed inside the fixing frame.

[0008] As a further preferred embodiment of this technical solution, each of the two sets of brackets has a slider rotatably mounted at the end away from the fixed block, both sets of sliders are slidably connected to the fixed frame, and the two sets of sliders are respectively fixedly connected to the output ends of the two sets of piston rods of the second double-rod hydraulic cylinder.

[0009] As a further preferred embodiment of this technical solution, the mold core is provided with two sets of symmetrically distributed slots, and two sets of symmetrically distributed moving rods are slidably installed in the mounting frame. The two sets of moving rods are correspondingly arranged with the slots, and both sets of moving rods are movably engaged with the mold core through the slots. Two sets of symmetrically distributed sliding rods are fixedly installed in the mounting frame, and a hydraulic cylinder is fixedly installed in the mounting frame.

[0010] As a further preferred embodiment of this technical solution, racks are fixedly installed on both sets of moving rods, and moving blocks are fixedly installed on both sets of racks. The moving blocks are slidably sleeved with the corresponding sliding rods. A gear is provided between the two sets of racks, and the gear meshes with the two sets of racks respectively. The gear is rotatably connected to the mounting frame through a rotating rod. The moving block on the right side is connected to the output end of the hydraulic cylinder piston rod.

[0011] This utility model provides a quick disassembly structure for a gearbox injection mold, which has the following advantages:

[0012] (1) This utility model achieves rapid adjustment of the distance between the two sets of first push rods and the two sets of second push rods through the first double-rod hydraulic cylinder, and then achieves rapid adjustment of the distance between the four sets of positioning blocks in conjunction with the four sets of adjusting rods. In conjunction with the positioning groove on the mold core, it achieves rapid installation or removal of the mold core on the mold frame. This allows the mold core in the injection mold to be replaced according to actual usage requirements, and reduces the time for mold core installation and removal, expands the applicability of the injection mold, and improves work efficiency.

[0013] (2) This utility model achieves the ejection and fixation of the mold core in the mold frame by means of the cross-distributed brackets between the fixed frame and the positioning frame and the two sets of symmetrically distributed moving rods on the mounting frame. This facilitates the workers to fix the mold core during the disassembly or installation of the mold core. The distance between the two sets of moving rods on the mounting frame is adjusted by hydraulic cylinders. The adjustment speed is fast and the adjustment method is convenient. When installing the mold core, the mounting frame fixes the mold core quickly by means of the moving rods and, together with the external robotic arm, quickly places the mold core in the position to be installed. When disassembling the mold core, the positioning frame is ejected by means of the two sets of brackets. The mold core is quickly snapped and fixed by means of the two sets of moving rods on the mounting frame. After the four sets of positioning blocks are released from fixing the position of the mold core, the disassembly of the mold core in the injection mold is completed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the structural separation of the mold frame and mold core of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0017] Figure 4 This is a schematic diagram showing the structural separation of the fixing frame and the positioning frame of this utility model;

[0018] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0019] Figure 6 For the present utility model Figure 4 Enlarged view of the structure at point C;

[0020] In the diagram: 1. Mold frame; 2. Mold core; 3. Mounting frame; 4. Fixing frame; 5. Positioning frame; 6. Positioning groove; 7. Positioning block; 8. Adjusting rod; 9. First push rod; 10. Second push rod; 11. First double-rod hydraulic cylinder; 12. Bracket; 13. Fixing block; 14. Slider; 15. Second double-rod hydraulic cylinder; 16. Moving rod; 17. Rack; 18. Moving block; 19. Slide rod; 20. Gear; 21. Rotating rod; 22. Hydraulic cylinder; 23. Slot. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1-6As shown in this embodiment, a quick-disassembly structure for a gearbox injection mold includes a mold frame 1 and a mounting frame 3. A mold core 2 is provided inside the mold frame 1. A fixing frame 4 is fixedly installed inside the mold frame 1. A positioning frame 5 is provided on the fixing frame 4. Four sets of symmetrically distributed positioning blocks 7 are provided on the positioning frame 5. Four sets of symmetrically distributed positioning grooves 6 are opened on the outer side of the mold core 2. The positioning grooves 6 correspond to the positioning blocks 7. The positioning blocks 7 are movably engaged with the mold core 2 through the positioning grooves 6. Adjusting rods 8 are fixedly installed on each of the four sets of positioning blocks 7. Two sets of symmetrically distributed first push rods 9 are slidably installed inside the positioning frame 5. Two sets of symmetrically distributed second push rods 10 are slidably installed inside the positioning frame 5. The four sets of adjusting rods 8 are slidably connected to one set of first push rods 9 and one set of second push rods 10, respectively. A first push rod 8 is provided between each set of first push rods 9 and each set of second push rods 10. A double-rod hydraulic cylinder 11 is provided. The positioning frame 5 is slidably connected to the mold frame 1. Two sets of first push rods 9 and second push rods 10 are vertically distributed. The two sets of first push rods 9 are fixedly connected to the output ends of the piston rods of the corresponding first double-rod hydraulic cylinder 11. The two sets of second push rods 10 are fixedly connected to the output ends of the two sets of piston rods of the corresponding first double-rod hydraulic cylinder 11. When the first double-rod hydraulic cylinder 11 in the positioning frame 5 is activated, the two sets of first push rods 9 or the two sets of second push rods 10, which are symmetrically distributed, slide synchronously inward or outward in the positioning frame 5, thereby realizing the synchronous inward or outward adjustment of the spacing between the four sets of adjustment blocks, and thus adjusting the spacing between the positioning blocks 7 on the four sets of adjustment blocks. The four sets of positioning blocks 7 quickly fix or disassemble the mold core 2 on the mold frame 1 by quickly engaging or disengaging with the positioning groove 6.

[0023] like Figure 2 , Figure 3 and Figure 6As shown, two sets of cross-distributed brackets 12 are symmetrically installed between the positioning frame 5 and the fixed frame 4. Two sets of symmetrically distributed fixing blocks 13 are fixedly installed inside the positioning frame 5. Both sets of brackets 12 are rotatably connected to the corresponding fixing blocks 13 via rotating shafts. A second double-rod hydraulic cylinder 15 is fixedly installed inside the fixed frame 4. A slider 14 is rotatably installed at the end of each set of brackets 12 away from the fixing blocks 13. Both sets of sliders 14 are slidably connected to the fixed frame 4. The two sets of sliders 14 are respectively fixedly connected to the output ends of the two sets of piston rods of the second double-rod hydraulic cylinder 15. Two sets of symmetrically distributed slots 23 are opened on the mold core 2. Two sets of symmetrically distributed slots 23 are slidably installed inside the mounting frame 3. The moving rods 16 are arranged in two sets, corresponding to the slots 23. Both sets of moving rods 16 are movably engaged with the mold core 2 through the slots 23. Two sets of symmetrically distributed sliding rods 19 are fixedly installed inside the mounting frame 3. A hydraulic cylinder 22 is fixedly installed inside the mounting frame 3. A rack 17 is fixedly installed on each of the two sets of moving rods 16. A moving block 18 is fixedly installed on each of the two sets of racks 17. The moving block 18 is slidably sleeved with the corresponding sliding rod 19. A gear 20 is provided between the two sets of racks 17. The gear 20 meshes with the two sets of racks 17 respectively. The gear 20 is rotatably connected to the mounting frame 3 through the rotating rod 21. The right moving block 18 is connected to the piston rod of the hydraulic cylinder 22. The output end is connected. When the hydraulic cylinder 22 in the mounting frame 3 is started, it drives the corresponding rack 17 to slide. In conjunction with the gear 20 and the rotating rod 21, the two sets of racks 17 move in opposite directions, aligning the moving rod 16 with the slot 23 on the mold core 2. The engagement or disengagement of the moving rod 16 with the mold core 2 completes the fixing or loosening of the mounting frame 3 for the mold core 2. When installing the mold core 2, the mechanical arm moves the mounting frame 3 and the mold core 2, which has been fixed by the moving rod 16, to the position corresponding to the mold frame 1. With the help of the four sets of positioning blocks 7, the mold core 2 is installed on the positioning frame 5. When removing the mold core 2, the mechanical arm moves the mounting frame 3 to the position corresponding to the mold core 2 and... The mold core 2 is secured by two sets of moving rods 16. Then, the four sets of positioning blocks 7 are released to limit the position of the mold core 2, allowing for quick disassembly of the mold core 2. During the installation or disassembly of the mold core 2, the second double-rod hydraulic cylinder 15 inside the fixing frame 4 drives the two sets of sliders 14 and works with the bracket 12 and fixing block 13 to push out or retract the positioning frame 5 on the mold frame 1, further facilitating the installation and disassembly of the mold core 2. The first double-rod hydraulic cylinder 11, the second double-rod hydraulic cylinder 15, and the hydraulic cylinder 22 have large locking force and uniform pressure distribution. The hydraulic system automatically compensates for the thermal expansion of the mold, resulting in small installation errors for the mold core 2.

[0024] This utility model provides a quick disassembly structure for a gearbox injection mold. The specific working principle is as follows: The first double-rod hydraulic cylinder 11 in the positioning frame 5 is activated, causing two sets of symmetrically distributed first push rods 9 or two sets of second push rods 10 to slide synchronously inward or outward within the positioning frame 5. This achieves synchronous inward or outward adjustment of the spacing between the four sets of adjusting blocks, thereby adjusting the spacing between the positioning blocks 7 on the four sets of adjusting blocks. The four sets of positioning blocks 7 quickly engage or disengage with the positioning grooves 6 to quickly fix or disassemble the mold core 2 on the mold frame 1. When the hydraulic cylinder 22 in the mounting frame 3 is activated, it drives the corresponding rack 17 to slide. In conjunction with the gear 20 and the rotating rod 21, the two sets of racks 17 move in opposite directions, aligning the moving rod 16 with the slot 23 on the mold core 2. The engagement or disengagement of the moving rod 16 with the mold core 2 completes the fixing or loosening of the mold core 2 by the mounting frame 3. During the installation of the mold core 2, a robotic arm is used to... The mounting bracket 3 and the mold core 2, which has been fixed by the moving rod 16, are moved to the position corresponding to the mold frame 1. With the help of four sets of positioning blocks 7, the mold core 2 is installed on the positioning bracket 5. When disassembling the mold core 2, the mounting bracket 3 is moved to the position corresponding to the mold core 2 by the robotic arm and the mold core 2 is fixed by the two sets of moving rods 16. Then, the position limitation of the mold core 2 by the four sets of positioning blocks 7 is released to complete the quick disassembly of the mold core 2. During the installation or disassembly of the mold core 2, the second double-rod hydraulic cylinder 15 in the fixing bracket 4 drives the two sets of sliders 14 and cooperates with the bracket 12 and the fixing block 13 to push out or retract the positioning bracket 5 on the mold frame 1, which further facilitates the disassembly and assembly of the mold core 2. The locking force of the first double-rod hydraulic cylinder 11, the second double-rod hydraulic cylinder 15 and the hydraulic cylinder 22 are large and the pressure distribution is uniform. The hydraulic system automatically compensates for the thermal expansion of the mold, and the installation error of the mold core 2 is small.

[0025] 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 quick-disassembly structure for a gearbox injection mold, comprising a mold base (1) and a mounting bracket (3), characterized in that: The mold frame (1) is provided with a mold core (2), and a fixing frame (4) is fixedly installed in the mold frame (1). A positioning frame (5) is provided on the fixing frame (4). Four sets of symmetrically distributed positioning blocks (7) are provided on the positioning frame (5). Four sets of symmetrically distributed positioning grooves (6) are opened on the outside of the mold core (2). The positioning grooves (6) are distributed correspondingly to the positioning blocks (7). The positioning blocks (7) are movably engaged with the mold core (2) through the positioning grooves (6). Adjusting rods (8) are fixedly installed on each of the four sets of positioning blocks (7). Two sets of symmetrically distributed first push rods (9) are slidably installed in the positioning frame (5). Two sets of symmetrically distributed second push rods (10) are slidably installed in the positioning frame (5). The four sets of adjusting rods (8) are slidably connected to one set of first push rods (9) and the second push rods (10) respectively. A first double-rod hydraulic cylinder (11) is provided between the two sets of first push rods (9) and the two sets of second push rods (10).

2. The quick-disassembly structure for a gearbox injection mold according to claim 1, characterized in that: The positioning frame (5) is slidably connected to the mold frame (1). The two sets of first push rods (9) and second push rods (10) are vertically distributed. The two sets of first push rods (9) are respectively fixedly connected to the output end of the piston rod of the corresponding first double-rod hydraulic cylinder (11). The two sets of second push rods (10) are respectively fixedly connected to the output end of the two sets of piston rods of the corresponding first double-rod hydraulic cylinder (11).

3. The quick-disassembly structure for a gearbox injection mold according to claim 1, characterized in that: Two sets of cross-distributed brackets (12) are symmetrically installed between the positioning frame (5) and the fixing frame (4). Two sets of symmetrically distributed fixing blocks (13) are fixedly installed inside the positioning frame (5). Both sets of brackets (12) are rotatably connected to the corresponding fixing blocks (13) through a rotating shaft. A second double-rod hydraulic cylinder (15) is fixedly installed inside the fixing frame (4).

4. The quick-disassembly structure for a gearbox injection mold according to claim 3, characterized in that: Both sets of brackets (12) have sliders (14) rotatably mounted on the ends away from the fixed block (13). Both sets of sliders (14) are slidably connected to the fixed frame (4). The two sets of sliders (14) are respectively fixedly connected to the output ends of the two sets of piston rods of the second double-rod hydraulic cylinder (15).

5. The quick-disassembly structure for a gearbox injection mold according to claim 1, characterized in that: The mold core (2) has two sets of symmetrically distributed slots (23). The mounting frame (3) has two sets of symmetrically distributed moving rods (16) slidably installed inside. The two sets of moving rods (16) are correspondingly arranged with the slots (23). The two sets of moving rods (16) are movably engaged with the mold core (2) through the slots (23). The mounting frame (3) has two sets of symmetrically distributed sliding rods (19) fixedly installed inside. The mounting frame (3) has a hydraulic cylinder (22) fixedly installed inside.

6. The quick-disassembly structure for a gearbox injection mold according to claim 5, characterized in that: Both sets of moving rods (16) are fixedly mounted with racks (17), and both sets of racks (17) are fixedly mounted with moving blocks (18). The moving blocks (18) are slidably sleeved with the corresponding sliding rods (19). A gear (20) is provided between the two sets of racks (17). The gear (20) is meshed with the two sets of racks (17) respectively. The gear (20) is rotatably connected to the mounting frame (3) through a rotating rod (21). The moving block (18) on the right side is connected to the output end of the piston rod of the hydraulic cylinder (22).

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