Anti-loosening precision mold

Abstract

The utility model discloses an anti-loosing precision mould, which relates to the technical field of precision moulds, and comprises a bottom plate, two adjusting plates, a lower mould and an upper mould, the two adjusting plates are positioned at two ends of the bottom plate and are fixedly connected with the bottom plate, the lower mould is matched with the upper mould, the tops of the two adjusting plates are fixedly provided with mounting boxes, and the mounting boxes are fixedly connected with the bottom plate. The device has the advantages that the transmission roller is rotated through the rotary disc, the worm is rotated through the transmission roller to operate, the worm wheel is driven to operate through the operation of the worm, the threaded rod is driven to operate through the worm wheel, the transmission roller is driven to rotate through the worm wheel, and the transmission roller is driven to rotate through the worm wheel. The square sliding block is driven by the threaded rod to move up and down, so that the pressing plate is driven by the square sliding block to move up and down, the square sliding groove is limited through the sliding groove, the positions of the upper mold and the lower mold are fixed through the pressing plate, and therefore the precise mold can be stably fixed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of precision molds, in particular to a precision mold that is anti-loosening. Background Art

[0002] Today's precision molds generally refer to molding molds with complex structures and processes and high-precision molding molds. Molds with complex structures and processes are those that need to achieve many functions in a smaller mold volume. High-precision molds refer to molded products with small changes in size and very high consistency. The molds are often small in size but expensive.

[0003] A combined mold anti-loosening device is proposed in the Chinese utility model patent with application number 201822055666.3, including a first mold body, a second mold body, a threaded rod, a limit rod and a movable plate. The lower surface of the first mold body is provided with a matching second mold body, and fixed blocks are symmetrically welded on the outer walls on both sides of the first mold body. The lower surfaces of the fixed blocks are welded with orthogonally distributed threaded rods, and the lower surface of the first mold body is welded with limit rods distributed in a rectangular array. Limit holes matching the limit rods are provided at the four corners of the second mold body. A movable plate is sleeved on the lower end of the threaded rod, and a positioning ring is installed on the upper surface of the movable plate away from the threaded rod, and a spring is embedded and installed on the upper surface of the positioning ring. The device is provided with a spring to increase the supporting force of the movable plate on the lower surface of the second mold body, so as to avoid the formation of a gap between the first mold body and the second mold body when the nut is loose, thereby affecting the molding effect of the workpiece.

[0004] After being improved, the above-mentioned device increases the supporting force of the movable plate on the lower surface of the second mold body by setting a spring, so as to avoid the formation of a gap between the first mold body and the second mold body when the nut is loosened, thereby affecting the molding effect of the workpiece. However, in practical use, the use of screw installation method can easily cause the loosening of precision instruments, which is not convenient for stable fixation of precision instruments. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a precision mold that prevents loosening, and solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical scheme: a precision mold to prevent loosening, comprising a bottom plate, two adjusting plates, a lower mold and an upper mold, the two adjusting plates are located at both ends of the bottom plate and are fixedly connected thereto, the lower mold cooperates with the upper mold, the tops of the two adjusting plates are fixedly installed with mounting boxes, the internal rotation connection of the mounting box is connected with a transmission roller, the internal rotation connection of the mounting box is connected with a worm, the transmission roller penetrates the worm and is fixedly connected thereto, the internal rotation connection of the mounting box is connected with a worm wheel, the worm wheel is meshed with the worm, and the ends of the two adjusting plates close to each other are provided with sliding grooves, the internal sliding connection of the sliding groove is connected with a square slider, the internal rotation connection of the sliding groove is connected with a threaded rod, the threaded rod penetrates the square slider and is threadedly connected thereto, the threaded rod is fixedly connected to the worm wheel, one end of the square slider is fixedly connected with a pressing plate, the pressing plate cooperates with the upper mold, and a turntable is provided at one end of the mounting box, and the turntable is fixedly connected to the transmission roller.

[0007] Preferably, a T-shaped slide groove 1 is provided at one end of the two adjustment plates that are close to each other and on both sides corresponding to the sliding groove, and a T-shaped slider 1 is slidably connected inside the T-shaped slide groove 1, and the T-shaped slider 1 is fixedly connected to the pressure plate. Through the cooperation of the set T-shaped slide groove 1 and the T-shaped slider 1, the pressure plate can move more smoothly.

[0008] Preferably, a pawl is slidably connected to one end of the installation box, a ratchet is fixedly installed on the outer side of the transmission roller, and the ratchet is meshingly connected to the pawl, and the position of the pressure plate is fixed by the meshing of the pawl and the ratchet.

[0009] Preferably, one end of the installation box is provided with a T-shaped slide groove 2, and a T-shaped slider 2 is slidably connected inside the T-shaped slide groove 2, and the T-shaped slider 2 is fixedly connected to the pawl. A spring is fixedly installed inside the T-shaped slide groove 2, and the spring is fixedly connected to the T-shaped slider 2. The T-shaped slider 2 can be supported and fixed by the set spring, so that the engagement between the pawl and the ratchet is stable.

[0010] Preferably, a limit block is fixedly installed at one end of the installation box, the limit block is internally slidably connected to a limit plate, one side of the limit block is clamped with a clamping block, and the clamping block is clamped with the limit plate, so that the pawl can be limited when it is not engaged with the ratchet wheel through the cooperation of the set limit plate, the clamping block and the limit block.

[0011] Preferably, the shape of the upper mold is a concave shape, and the shape of the lower mold is a convex shape. By setting the upper mold and the lower mold to be concave and convex shapes respectively, the molding of the model is facilitated.

[0012] The utility model provides a precision mold that prevents loosening, which has the following beneficial effects:

[0013] 1. The precision mold that prevents loosening rotates the transmission roller by utilizing a turntable, thereby rotating the worm through the transmission roller, and the operation of the worm drives the worm wheel to operate, and the worm wheel drives the threaded rod to operate, and the threaded rod drives the square slider to move up and down, thereby driving the pressure plate to move up and down through the square slider, and limiting the square slide groove through the sliding groove, and fixing the upper and lower mold positions through the pressure plate, so as to facilitate stable fixation of the precision mold.

[0014] 2. The precision mold that prevents loosening is fixed by sliding the second T-shaped slider so that the pawl engages with the ratchet wheel, and the position of the pressure plate is limited by the second T-shaped slide groove, so as to further fix the precision mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is the assembly drawing of the utility model;

[0017] Figure 3 This is a cross-sectional view of the installation box of the utility model;

[0018] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0019] In the figure: 1. bottom plate; 2. adjustment plate; 3. lower die; 4. upper die; 5. mounting box; 6. pressure plate; 7. sliding groove; 8. threaded rod; 9. square slider; 10. T-shaped slide groove 1; 11. T-shaped slide groove 1; 12. worm gear; 13. transmission roller; 14. worm; 15. ratchet; 16. turntable; 17. pawl; 18. spring; 19. T-shaped slide groove 2; 20. T-shaped slide groove 2; 21. limit plate; 22. limit block; 23. clamping block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 4The utility model provides a technical solution: a precision mold to prevent loosening, including a bottom plate 1, two adjustment plates 2, a lower mold 3 and an upper mold 4, the two adjustment plates 2 are located at both ends of the bottom plate 1 and are fixedly connected thereto, the lower mold 3 cooperates with the upper mold 4, the tops of the two adjustment plates 2 are fixedly installed with mounting boxes 5, the internal rotation of the mounting box 5 is connected with a transmission roller 13, the internal rotation of the mounting box 5 is connected with a worm 14, the transmission roller 13 penetrates the worm 14 and is fixedly connected thereto, the internal rotation of the mounting box 5 is connected with a worm gear 12, the worm gear 12 is meshed with the worm 14, the ends of the two adjustment plates 2 close to each other are each provided with a sliding groove 7, the internal sliding connection of the sliding groove 7 is connected with a square slider 9, the internal rotation connection of the sliding groove 7 is connected with a threaded rod 8, the threaded rod 8 penetrates the square slider 9 and is threadedly connected thereto, the threaded rod 8 is connected to the worm gear 12 Fixed connection, one end of the square slider 9 is fixedly connected with a pressure plate 6, the pressure plate 6 cooperates with the upper mold 4, and a turntable 16 is provided at one end of the mounting box 5. The turntable 16 is fixedly connected to the transmission roller 13, and the transmission roller 13 is driven to operate by rotating the turntable 16, and the operation of the transmission roller 13 drives the worm 14 to operate, and the meshing relationship between the worm 14 and the worm wheel 12 drives the worm wheel 12 to operate, thereby driving the threaded rod 8 to operate through the worm wheel 12, and the square slider 9 is driven to move up and down through the threaded connection relationship between the threaded rod 8 and the square slider 9, and the pressure plate 6 is driven to move up and down through the square slider 9, so that the upper mold 4 and the lower mold 3 are fixed in position by the pressure plate 6 and the bottom plate 1, and the square slider 9 is limited by the provided sliding groove 7, so as to limit the pressure plate 6, which is convenient for stable fixation of the precision mold.

[0022] The two adjustment plates 2 are provided with a T-shaped slide groove 10 at one end close to each other and at both sides corresponding to the sliding groove 7. The T-shaped slide groove 10 is internally slidably connected with a T-shaped slider 11. The T-shaped slider 11 is fixedly connected to the pressing plate 6. By setting the T-shaped slide groove 10 and the T-shaped slider 11, the pressing plate 6 is more stable and smooth when moving. A limit block 22 is fixedly installed at one end of the installation box 5. The limit block 22 is internally slidably connected with the limit plate 21. One end of the limit block 22 is fixedly installed with a limit block 22. A clamping block 23 is clamped on the side, and the clamping block 23 is clamped with a limiting plate 21. Through the cooperation of the limiting plate 21, the limiting block 22 and the clamping block 23, when the pawl 17 is not engaged with the ratchet 15, the position of the pawl 17 is limited to prevent it from engaging with the ratchet 15, thereby making the turntable 16 unable to rotate. The shape of the upper mold 4 is concave, and the shape of the lower mold 3 is convex. By setting the shapes of the upper mold 4 and the lower mold 3 to concave and convex respectively, the molding of the mold is facilitated.

[0023] A pawl 17 is slidably connected to one end of the installation box 5, and a ratchet 15 is fixedly installed on the outer side of the transmission roller 13. The ratchet 15 is meshed with the pawl 17. The meshing of the pawl 17 and the ratchet 15 and the characteristics of the ratchet 15 limit the position of the pressure plate 6. A T-shaped slot 20 is provided at one end of the installation box 5. A T-shaped slider 19 is slidably connected inside the T-shaped slot 20. The T-shaped slider 19 is fixedly connected to the pawl 17. A spring 18 is fixedly installed inside the T-shaped slot 20. The spring 18 is fixedly connected to the T-shaped slider 19. By cooperating with the T-shaped slot 20 and the T-shaped slider 19, the position of the pawl 17 can be moved, which is convenient for fixing the position of the pressure plate 6, and the T-shaped slider 19 can be supported and fixed by the spring 18.

[0024] In summary, when the precision mold for preventing loosening is used, the T-shaped slider 19 is slid to disengage the pawl 17 from the ratchet wheel 15, and the cooperation of the limiting plate 21, the limiting block 22 and the clamping block 23 limits the pawl 17, and then the turntable 16 is rotated to drive the transmission roller 13 to operate, and the operation of the transmission roller 13 drives the worm 14 to operate, and the meshing relationship between the worm 14 and the worm wheel 12 drives the worm wheel 12 to operate, thereby driving the threaded rod 8 to operate through the worm wheel 12, and the threaded rod 8 and the square slider 9 are engaged. The threaded connection drives the square slider 9 to move up and down, and the square slider 9 drives the pressure plate 6 to move up and down, so that the upper mold 4 and the lower mold 3 are fixed in position by the pressure plate 6 and the base plate 1, and the square slider 9 is limited by the set sliding groove 7, so as to limit the pressure plate 6, which is convenient for stable fixation of the precision mold. After the fixation, the limit of the pawl 17 is released, so that the pawl 17 engages with the ratchet 15 again, thereby limiting the transmission roller 13 and the turntable 16, and further improving the stable fixation effect.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision mold for preventing loosening, comprising a base plate (1), two adjustment plates (2), a lower mold (3) and an upper mold (4), characterized in that: The two adjustment plates (2) are located at both ends of the bottom plate (1) and are fixedly connected thereto. The lower die (3) cooperates with the upper die (4). A mounting box (5) is fixedly installed on the top of the two adjustment plates (2). The interior of the mounting box (5) is rotatably connected to a transmission roller (13). The interior of the mounting box (5) is rotatably connected to a worm (14). The transmission roller (13) penetrates the worm (14) and is fixedly connected thereto. The interior of the mounting box (5) is rotatably connected to a worm wheel (12). The worm wheel (12) is meshedly connected to the worm (14). The two adjustment plates (2) A sliding groove (7) is provided at one end close to each other, a square slider (9) is slidably connected inside the sliding groove (7), a threaded rod (8) is rotatably connected inside the sliding groove (7), the threaded rod (8) passes through the square slider (9) and is threadedly connected thereto, the threaded rod (8) is fixedly connected to the worm gear (12), one end of the square slider (9) is fixedly connected to a pressure plate (6), the pressure plate (6) cooperates with the upper mold (4), a turntable (16) is provided at one end of the installation box (5), and the turntable (16) is fixedly connected to the transmission roller (13).

2. The anti-loosening precision mold according to claim 1, characterized in that: A T-shaped slide groove (10) is provided at one end of the two adjustment plates (2) that is close to each other and at both sides corresponding to the slide groove (7). A T-shaped slider (11) is slidably connected inside the T-shaped slide groove (10), and the T-shaped slider (11) is fixedly connected to the pressure plate (6).

3. The anti-loosening precision mold according to claim 1, characterized in that: A ratchet (17) is slidably connected to one end of the installation box (5), a ratchet (15) is fixedly installed on the outer side of the transmission roller (13), and the ratchet (15) is meshingly connected to the ratchet (17).

4. The anti-loosening precision mold according to claim 3, characterized in that: A second T-shaped slide groove (20) is provided at one end of the installation box (5), a second T-shaped slider (19) is slidably connected inside the second T-shaped slide groove (20), the second T-shaped slider (19) is fixedly connected to the pawl (17), a spring (18) is fixedly installed inside the second T-shaped slide groove (20), and the spring (18) is fixedly connected to the second T-shaped slider (19).

5. The anti-loosening precision mold according to claim 4, characterized in that: A limit block (22) is fixedly mounted on one end of the installation box (5); the limit block (22) is internally slidably connected to the limit plate (21); a clamping block (23) is clamped on one side of the limit block (22); and the clamping block (23) is clamped to the limit plate (21).

6. The anti-loosening precision mold according to claim 1, characterized in that: The upper mold (4) is in a concave shape, and the lower mold (3) is in a convex shape.

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