Precise gear mold

Abstract

The invention discloses a precision gear mold, and relates to the field of industrial machining, the precision gear mold comprises a mounting frame, the mounting frame is U-shaped, an upper top plate is arranged at the top of the mounting frame, a mold main body is arranged on the mounting frame, the mold main body comprises an upper mold and a lower mold, a placement groove is formed in the lower mold, and the upper mold is provided with a positioning groove; a bottom forming plate is arranged in the containing groove, an open groove matched with the containing groove is formed in the upper mold, and a top forming plate matched with the bottom forming plate is arranged in the open groove. The optical camera is aligned with a positioning point, the limiting lantern ring is matched with the limiting shaft, the mounting block is in butt joint with the mounting groove, and the limiting rod is matched with the limiting hole, so that rapid die combination and precise positioning are achieved, and a foundation is laid for precise gear die casting.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial processing, in particular to a precision gear mold. BACKGROUND

[0002] As a core basic component in the field of high-end manufacturing, precision gears are widely used in key industries such as aerospace, high-end equipment, new energy vehicles, etc., and the precision of the gears directly determines the performance and reliability of the end products. With the upgrading of intelligent manufacturing towards high precision and high stability, the market puts forward strict requirements on the tooth profile precision, surface finish and dimensional consistency of gears, and the tolerance range often needs to be controlled in microns. This demand forces the iteration of gear forming equipment, and as the core precision gear mold, its positioning accuracy and assembly efficiency have become the key bottleneck restricting the development of the industry, and the demand for technology upgrading is urgent.

[0003] The existing technology accurately constructs the models of the upper mold, the lower mold, the top forming plate and the bottom forming plate through 3D modeling software, accurately hoists the upper mold to the upper side of the lower mold, and slowly lowers it according to the preset program to complete the mold closing action.

[0004] The existing technology lacks precise center positioning mechanism in mold positioning, and the upper and lower molds are prone to center deviation when closing, which leads to asymmetric gear tooth profile; the installation of the top and bottom forming plates has no standardized positioning structure, and angle deviation is easy to occur during replacement or assembly, affecting the forming consistency; no auxiliary calibration and angle fine adjustment device is set, and manual adjustment has low precision and poor efficiency SUMMARY

[0005] Therefore, the purpose of the present application is to provide a precision gear mold to solve the technical problems of slow installation and assembly, and insufficient positioning accuracy of the existing gear mold.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a precision gear mold, comprising a mounting frame, the mounting frame is arranged in a "U" shape, the top of the mounting frame is provided with an upper top plate, the mounting frame is provided with a mold body, the mold body comprises an upper mold and a lower mold, the lower mold is provided with a mounting groove, the mounting groove is provided with a bottom forming plate, the upper mold is provided with a slot matched with the mounting groove, the slot is provided with a top forming plate matched with the bottom forming plate, the top forming plate is provided with a forming protrusion, the top forming plate is provided with a forming protrusion on the upper and lower surfaces, the top forming plate is provided with a mounting block at the four corners, the upper mold is provided with a mounting slot matched with the mounting block, the bottom forming plate is provided with a forming groove matched with the forming protrusion, the bottom of the mounting frame is provided with a limiting sleeve ring matched with the bottom forming plate, the center of the bottom forming plate is provided with a connecting port matched with the limiting sleeve ring, the center of the top forming plate is provided with a limiting shaft, the center of the limiting shaft is provided with a through port matched with the limiting sleeve ring, the through port penetrates through the limiting shaft, and the through port is connected with the top forming plate.

[0007] By adopting the above technical scheme, the upper and lower molds are quickly positioned.

[0008] The present application further provides that the bottom of the upper top plate is provided with an optical camera matched with the center point of the through port and the limiting sleeve ring, and the mounting frame is provided with a positioning point matched with the optical camera at the center position of the limiting sleeve ring.

[0009] By adopting the above technical scheme, the optical camera is assisted in positioning The present application further provides that the lower side of the upper top plate is provided with a reference belt, the two ends of the reference belt are connected with a winding shaft, and the winding shaft is connected with an external driving device.

[0010] By adopting the above technical scheme, the winding operation of the reference belt is realized, which serves as an additional reference.

[0011] The present application further provides that a pair of push rods are symmetrically arranged on the two sides of the upper mold, a pair of extension plates are arranged on the two sides of the mounting frame matched with the pair of push rods, a pair of sliding grooves are symmetrically arranged on the top of the pair of extension plates matched with the pair of push rods, a stop lever is slidably arranged in the sliding groove, a transmission shaft is arranged in the sliding groove matched with the stop lever, and a second control motor is arranged on one side of the extension plate matched with the transmission shaft.

[0012] By adopting the above technical scheme, the push rod is limited and pushed, and the rotation of the upper mold is finely adjusted.

[0013] The present application further provides that a pair of guide blocks are symmetrically arranged on the top surface of the lower mold, and a pair of arc-shaped movable grooves are arranged on the bottom surface of the upper mold matched with the guide blocks.

[0014] By adopting the above technical scheme, the rotation angle is limited.

[0015] The upper die bottom is provided with a clamping rod, and the lower die is provided with a clamping groove matched with the clamping rod.

[0016] By adopting the above technical scheme, the upper die and the lower die are quickly positioned and installed.

[0017] The bottom forming plate is provided with a plurality of limiting rods, and the accommodating groove is provided with a plurality of limiting holes matched with the limiting rods.

[0018] By adopting the above technical scheme, the angle of the bottom forming plate is positioned.

[0019] The mounting frame is provided with a pair of fixed plates symmetrically arranged above the upper die, the mounting frame is provided with a guide groove matched with the fixed plates, and the upper top plate is provided with a first control motor matched with the guide groove.

[0020] By adopting the above technical scheme, the upper die is pressed down, and then the die casting operation is performed.

[0021] In summary, the present application mainly has the following advantages: 1. The optical camera is used for alignment positioning, the limiting sleeve ring and the limiting shaft are matched, the mounting block and the mounting groove are connected, and the limiting rod and the limiting hole are matched, so that the mold is quickly combined and accurately positioned, and the foundation for precise die casting of the gear is laid; 2. The second control motor drives the shift lever to move, the push rod drives the upper die to rotate and fine-tune the angle, the arc-shaped movable groove and the guide block limit the rotation range, the clamping rod and the clamping groove assist in positioning, the mold closing angle is accurate, and the gear forming quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of part of the structure of the present application; Figure 3 It is a schematic diagram of the upper die structure of the present application; Figure 4 It is a schematic diagram of the top of the top forming plate of the present application; Figure 5 It is a schematic diagram of the bottom of the upper die of the present application; Figure 6 It is a schematic diagram of the structure of the lower die of the present application; Figure 7 It is an exploded schematic diagram of the upper die of the present application; Figure 8 It is a schematic diagram of part of the structure of the lower die of the present application; Figure 9 Figure is the schematic diagram of the upper top plate bottom structure of the present application; Figure 10 Figure is the schematic diagram of the bottom forming plate bottom of the present application.

[0023] In the figure: 1, mounting frame; 2, upper top plate; 3, first control motor; 4, winding shaft; 5, reference belt; 6, guide groove; 7, fixed plate; 8, upper die; 9, stop lever; 10, lower die; 11, movable slot; 12, sliding slot; 13, transmission shaft; 14, second control motor; 15, push rod; 16, extension plate; 17, mounting slot; 18, top forming plate; 19, forming protrusion; 20, limiting shaft; 21, through port; 22, mounting block; 23, clamping lever; 24, bottom forming plate; 25, limiting sleeve ring; 26, guide block; 27, forming groove; 28, clamping slot; 29, slotted; 30, setting slot; 31, limiting hole; 32, limiting rod; 33, connecting port; 34, optical camera. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0025] The embodiments of the present application will be described below according to the overall structure of the present application.

[0026] A precise gear mold, such as Figures 1-10As shown, the device includes a mounting frame 1, which is U-shaped. A top plate 2 is mounted on the top of the mounting frame 1. A mold body is mounted on the mounting frame 1, comprising an upper mold 8 and a lower mold 10. The lower mold 10 has a placement groove 30, within which a bottom forming plate 24 is placed. The upper mold 8 has a slot 29 that mates with the placement groove 30. A top forming plate 18 is mounted within the slot 29 that mates with the bottom forming plate 24. The top forming plate 18 has forming protrusions 19 on both its upper and lower surfaces. The bottom forming plate 24 has forming grooves 27 that mate with the forming protrusions 19. In actual use, the material in the top forming plate 18 and the bottom forming plate 24 is pressed together by the mutual pressing of the upper mold 8 and the lower mold 10, and with the cooperation of the forming protrusion 19 and the forming groove 27, thereby achieving the effect of gear die casting. The mounting frame 1 has a pair of fixed plates 7 symmetrically arranged above the upper mold 8 on the "U"-shaped inner wall. The mounting frame 1 has a guide groove 6 that cooperates with the fixed plates 7. The top of the upper plate 2 is equipped with a first control motor 3 that cooperates with the guide groove 6. The guide groove 6 is equipped with a drive shaft that drives the fixed plate 7 to move up and down. It is mostly a threaded shaft. The first control motor 3 controls its rotation, thereby driving the fixed plate 7 to move up and down, pressing down on the upper mold 8 to perform die casting. Based on the above structure, the bottom of the mounting frame 1 is provided with a limiting collar 25 in conjunction with the bottom forming plate 24. The center of the bottom forming plate 24 is provided with a connecting port 33 in conjunction with the limiting collar 25. The center of the top forming plate 18 is provided with a limiting shaft 20. The center of the limiting shaft 20 is provided with a through opening 21 in conjunction with the limiting collar 25. The through opening 21 passes through the limiting shaft 20 and connects the top and bottom of the top forming plate 18. The bottom of the upper plate 2 is provided with an optical camera 34 at the center point of the through opening 21 and the limiting collar 25. The mounting frame 1 is provided with a positioning point at the center of the limiting collar 25 in conjunction with the optical camera 34. In actual use, the upper mold 8 and the lower mold 10 are matched and installed. At this time, the optical camera 34 on the top is aligned with the center positioning point on the mounting frame 1. At this time, with the cooperation of the limiting collar 25 and the limiting shaft 20, the center positioning point can be aligned with the positioning point through the through opening 21, thereby aligning and installing the upper mold 8 and the lower mold 10. Based on the above structure, mounting blocks 22 are provided at the four corners of the top forming plate 18. The upper mold 8 has mounting grooves 17 that mate with the mounting blocks 22. The bottom forming plate 24 has several limiting rods 32 at its bottom. The mounting groove 30 has several limiting holes 31 that mate with the limiting rods 32. The top forming plate 18 is quickly positioned and installed using the mounting grooves 17 and mounting blocks 22. The bottom forming plate 24 is installed at a certain angle using the limiting holes 31 and limiting rods 32. This structure enables rapid assembly and installation of the mold, as well as rapid and precise positioning of details, ensuring the precision of the gears. Furthermore, a reference belt 5 is provided below the top plate 2, with both ends of the reference belt 5 connected to a take-up shaft 4. The take-up shaft 4 is connected to an external drive device. Similarly, corresponding positioning points are also provided on the take-up shaft 4. These points are transparent and have a regulated gear pattern printed on their surface. They are used in conjunction with the optical camera 34 on the top for calibration. A pair of push rods 15 are symmetrically arranged on both sides of the upper mold 8. A pair of extension plates 16 are provided on both sides of the mounting bracket 1 in conjunction with the pair of push rods 15. A pair of extension plates 16 are mirror-shaped openings on the top of the pair of push rods 15. A slide groove 12 is provided, in which a stop bar 9 is slidably provided. A transmission shaft 13 is provided in the slide groove 12 in conjunction with the stop bar 9. A second control motor 14 is provided on one side of the extension plate 16 in conjunction with the transmission shaft 13. The second control motor 14 drives the transmission shaft 13 to rotate, thereby controlling the rotation of the transmission shaft 13, which in turn drives the stop bar 9 to move. When the stop bar 9 moves, it is limited by a push rod 15, which in turn drives the push rod 15 to move and rotate the upper mold 8, thereby fine-tuning the angle between the upper mold 8 and the lower mold 10, thus ensuring the precision of gear forming. The lower mold 10 has a pair of guide blocks 26 symmetrically arranged on its top surface. The bottom surface of the upper mold 8 has a pair of arc-shaped movable grooves 11 that cooperate with the guide blocks 26. The bottom surface of the upper mold 8 has a locking rod 23. The lower mold 10 has a locking groove 28 that cooperates with the locking rod 23. By cooperating with the guide blocks 26 and the movable grooves 11, the rotation angle of the upper mold 8 is restricted, so that the fine adjustment is within a certain range. By cooperating with the locking rod 23 and the locking groove 28, the upper mold 8 and the lower mold 10 are quickly positioned.

[0027] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A precision gear mold comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with an upper top plate (2) at the top, a mold body is arranged on the mounting frame (1), the mold body comprises an upper mold (8) and a lower mold (10), the lower mold (10) is provided with a placing groove (30), the bottom forming plate (24) is arranged in the placing groove (30), the upper mold (8) is provided with a slot (29) matched with the placing groove (30), the top forming plate (18) is arranged in the slot (29) matched with the bottom forming plate (24), the top forming plate (18) is provided with a forming protrusion (19), the top forming plate (18) is provided with the forming protrusion (19) on the upper and lower surfaces, the top forming plate (18) is provided with a mounting block (22) at the four corners, the upper mold (8) is provided with a mounting groove (17) matched with the mounting block (22), the bottom forming plate (24) is provided with a forming groove (27) matched with the forming protrusion (19), the mounting frame (1) is provided with a limiting sleeve ring (25) matched with the bottom forming plate (24) at the bottom, the bottom forming plate (24) is provided with a connecting port (33) matched with the limiting sleeve ring (25) at the center position, the top forming plate (18) is provided with a limiting shaft (20) at the center position, the limiting shaft (20) is provided with a through port (21) matched with the limiting sleeve ring (25) at the center position, the through port (21) penetrates the limiting shaft (20), and the through port (21) is connected with the top and bottom of the top forming plate (18).

2. A precision gear mold as defined in claim 1, wherein: The upper top plate (2) is provided with an optical camera (34) matched with the through port (21) and the center point of the limiting sleeve ring (25) at the bottom, and the mounting frame (1) is provided with a positioning point matched with the optical camera (34) at the center position of the limiting sleeve ring (25).

3. A precision gear mold as defined in claim 1, wherein: The upper top plate (2) is provided with a reference belt (5) below, the reference belt (5) is connected with a winding shaft (4) at both ends, and the winding shaft (4) is connected with an external driving device.

4. A precision gear mold as defined in claim 1, wherein: A pair of push rods (15) are symmetrically arranged on the two sides of the upper mold (8), a pair of extension plates (16) are arranged on the two sides of the mounting frame (1) matched with the pair of push rods (15), a pair of sliding grooves (12) are symmetrically arranged on the top of the pair of extension plates (16) matched with the pair of push rods (15), a stop lever (9) is slidably arranged in the sliding groove (12), a transmission shaft (13) is arranged in the sliding groove (12) matched with the stop lever (9), and a second control motor (14) is arranged on one side of the extension plate (16) matched with the transmission shaft (13).

5. A precision gear mold as defined in claim 1, wherein: A pair of guide blocks (26) are symmetrically arranged on the top surface of the lower mold (10), and a pair of arc-shaped movable grooves (11) are arranged on the bottom surface of the upper mold (8) matched with the guide blocks (26).

6. A precision gear mold as defined in claim 1, wherein: The upper mold (8) is provided with a clamping rod (23) on the bottom surface, and the lower mold (10) is provided with a clamping groove (28) matched with the clamping rod (23).

7. A precision gear mold as defined in claim 1, wherein: The bottom forming plate (24) is provided with a plurality of limiting rods (32) at the bottom, and the placing groove (30) is provided with a plurality of limiting holes (31) matched with the limiting rods (32).

8. A precision gear mold as defined in claim 1, wherein: The mounting frame (1) is provided with a pair of fixed plates (7) symmetrically on the inner wall of the "U" type above the upper die (8), the mounting frame (1) is provided with a guide groove (6) matched with the fixed plate (7), and the upper top plate (2) is provided with a first control motor (3) matched with the guide groove (6) on the top.

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