Adjustable overturning mold core type mechanical arm and using method thereof

Abstract

The invention discloses an adjustable turnover mold core type mechanical arm and a using method thereof, and relates to the field of mold core mounting, the adjustable turnover mold core type mechanical arm comprises a base and a mechanical arm body mounted at the top of the base, a turnover mechanism is mounted at the output end of the mechanical arm body, and a positioning mechanism is mounted on one side of the turnover mechanism. The air cylinder pushes the connecting plate to move and drives the moving frame and the second rack to slide, the racks apply transverse force to enable the gear to rotate, then the angle of the rotating rod is adjusted, mold core overturning is achieved, meanwhile, the first rack is matched with the gear, and the overturning angle is flexibly adjusted through combined control of the limiting rod and the threaded rod; the limiting rods and the threaded rods ensure that the angle is accurately controlled during small-angle operation, efficient installation can be kept during large-angle overturning, the design meets the installation requirements of different mold cores, and the flexibility, installation precision and efficiency of a production line are improved.

Description

Technical Field

[0001] The invention relates to the technical field of mold core installation, and in particular to an adjustable flip mold core type mechanical arm and a use method thereof. Background Art

[0002] The robotic arm is a complex system with high precision, multi-input and multi-output, high nonlinearity and strong coupling. With its unique operational flexibility, it has been widely used in industrial assembly, safety and explosion-proof and other fields. The mold core is an important part of the mold and determines the final shape of the molded part. The handling, installation and precision adjustment of the mold core are usually completed and operated by a robotic arm.

[0003] However, in the prior art, when processing different batches of molds, in order to complete the assembly and processing more efficiently and conveniently, the transportation and position adjustment of the molds are particularly important. In particular, when different batches of molds are transferred and transported, the shape, size, weight and other parameters of the molds are usually different. Therefore, when flipping and adjusting the orientation, the robot arm is required to have extremely high flexibility. However, traditional robot arms often find it difficult to accurately control the angle and direction of each flip, resulting in inaccurate orientation adjustment and even mold positioning deviation. This uncertainty will affect processing accuracy and production efficiency, and increase the debugging time of the production line. Summary of the invention

[0004] The purpose of the present invention is to provide an adjustable flip mold core type robot arm and its use method, so as to solve the problem that the traditional robot arm mentioned in the above background technology is often difficult to accurately control the angle and direction of each flip, resulting in inaccurate orientation adjustment and even mold positioning deviation.

[0005] To achieve the above object, the present invention provides the following technical solution: an adjustable flip mold core type mechanical arm, comprising a base and a mechanical arm body installed on the top thereof, a flip mechanism installed at the output end of the mechanical arm body, and a positioning mechanism installed on one side of the flip mechanism;

[0006] The cam is an assembly made of a plurality of gears, each of which is connected to a plurality of gears, and the plurality of gears are connected to the plurality of gears, and the plurality of gears are connected to the plurality of gears.

[0007] Preferably, a synchronization block is fixedly connected to the side wall of the second rack, and the synchronization block is slidably connected to the side wall of the second track.

[0008] Preferably, a cylinder is installed on the top of the outer shell, a support frame is installed on one end of the cylinder, and the bottom of the support frame is fixedly connected to the outer shell.

[0009] Preferably, the output end of the cylinder is fixedly connected to the connecting plate, one end of the rotating rod is fixedly connected to the rotating plate, and the side wall of the cylinder is fixedly connected to a slide rail.

[0010] Preferably, the rotating plate is slidably connected to the slide rail, a first guide hole is opened at the top of the first rail, one end of the moving bar passes through the first guide hole, and the moving bar is slidably connected to the first guide hole, and the top of one end of the first rack is fixedly connected to the moving bar.

[0011] Preferably, the positioning mechanism includes a mounting frame, a fixing plate is fixedly connected to one side of the mounting frame, and a rotating column is rotatably connected to the inner side of the mounting frame, two connecting blocks are symmetrically fixedly connected to the outer surface of the rotating column, and a pull rod is rotatably connected to the inner side of the connecting block.

[0012] Preferably, two second guide holes are provided on the surface of the fixing plate, a sliding block is slidably connected to the inner side of the second guide hole, a positioning rod is fixedly connected to one side of the sliding block, and the positioning rod is rotatably connected to one end of the pull rod.

[0013] Preferably, a clamping plate is fixedly connected to one side of the sliding block, a driving motor is installed on the inner side of the mounting frame, and an output end of the driving motor is fixedly connected to the rotating column.

[0014] Preferably, the width of both ends of the sliding block is greater than that of the middle portion of the second guide hole, one end of the rotating column is rotatably connected to the side wall of the fixed plate, and the center of one side of the mounting frame is fixedly connected to the rotating plate.

[0015] A method for using an adjustable flip mold core type mechanical arm comprises the following steps:

[0016] Step 1: Clamping and positioning of the mold core. First, use a driving motor to drive the rotating column to rotate. When the rotating column rotates, the sliding block is driven to move through the connecting block. When the sliding block is active, it slides on the inner side of the second guide hole and is limited by it to achieve precise linear movement. Driven by the two pull rods, the two sliding blocks gradually approach each other, pushing the two clamping plates close to each other, completing the positioning and clamping of the mold core.

[0017] Step 2: Transfer of the mold core. After the mold core is clamped, the connecting plate is controlled to move by the drive of the cylinder, driving the moving frame to move together. At this time, the second rack slides on the inner side of the second track and applies a lateral force to the gear, causing the gear to drive the rotating rod to rotate. The rotation of the rotating rod changes the angle of the mold core, thereby realizing the flipping of the mold core.

[0018] Step 3: Flipping. While the gear drives the rotating rod to rotate, it also applies force to the first rack, causing it to slide on the inner side of the first track. The first rack drives the moving bar to move together. The movement of the moving bar is limited by the limit rod, which limits its movement range, thereby indirectly controlling the rotation angle of the gear and realizing the adjustment of the flipping angle of the mold core.

[0019] Step 4: Limit and adjust the flipping angle. When the moving bar slides in the fixed frame, the first threaded rod and the limiting rod can extend into the moving bar by rotation. If the second threaded rod is inserted into the limiting groove, the movement of the moving bar is limited. The maximum rotation angle of the gear is limited to degrees. If the first threaded rod is in the limiting groove and the second threaded rod is away from it, the maximum flipping angle of the gear is degrees.

[0020] Step 5: Ensure the flipping stability. When the connecting plate drives the moving frame to move, the second rack slides on the inside of the second track, and the synchronization block also slides on the side wall of the track to ensure the accuracy of the linear motion. When the gear drives the rotating rod to rotate, the rotating plate slides along the slide rail to ensure the stability of the system and prevent deflection. At the same time, the first rack moves under the limit of the first track to ensure stable engagement with the gear.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the connecting plate is pushed to move by the cylinder, driving the movable frame and the second rack to slide, and the rack applies a lateral force to rotate the gear, thereby adjusting the angle of the rotating rod to realize the flipping of the mold core. At the same time, the first rack cooperates with the gear, and the flipping angle is flexibly adjusted through the combined control of the limit rod and the threaded rod. The function of the limit rod and the threaded rod ensures that the angle is accurately controlled during small-angle operation, and efficient installation can be maintained during large-angle flipping. This design adapts to different mold core installation requirements and improves the flexibility, installation accuracy and efficiency of the production line.

[0023] 2. In the present invention, multiple limit stops and precise structural designs are used to ensure the stability and accuracy of components such as the rack, synchronization block, movable frame, and rotating plate during operation. The synchronization block closely cooperates with the side wall of the track to provide lateral support for the rack and prevent lateral displacement, thereby improving positioning accuracy. The rotating plate slides on the slide rail to ensure the stability of the rotation process and prevent errors in the installation of the mold core. In addition, the double limit stops of the guide hole and the fixed frame ensure the stability of the rack and gear during meshing and avoid misalignment or poor meshing. The cooperation of the threaded rod and the limit groove further improves the flexibility and accuracy of the flip angle adjustment to meet the needs of different mold cores, thereby improving processing efficiency and quality.

[0024] 3. In the present invention, precise clamping and positioning of the mold core are achieved through driving motor control. The motor drives the rotating column to rotate, and the rotation is transmitted to the sliding block through the linkage mechanism. The sliding block moves smoothly in the second guide hole to ensure that it only runs in a straight direction. Two pull rods are connected and synchronously pull the sliding block to drive the clamping plate to gradually move closer to the mold core to achieve uniform clamping. This design ensures the uniform distribution of clamping force and avoids damage to the mold core. At the same time, it ensures its stability and accuracy during the processing. The system can flexibly adapt to mold cores of different specifications to improve production efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of an adjustable flip mold core type mechanical arm of the present invention;

[0026] Figure 2 It is a partial structural schematic diagram of an adjustable flip mold core type mechanical arm of the present invention;

[0027] Figure 3 It is a schematic diagram of the disassembled structure of an adjustable flip mold core type mechanical arm flip mechanism of the present invention;

[0028] Figure 4 It is a partial structural schematic diagram of an adjustable flip mold core type mechanical arm flip mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the fixed frame and the first track position structure of an adjustable flip core type mechanical arm blocking member of the present invention;

[0030] Figure 6 It is a structural schematic diagram of an adjustable flip mold core type mechanical arm positioning mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the disassembled structure of an adjustable flip mold core type mechanical arm positioning mechanism of the present invention;

[0032] Figure 8 The present invention is a partial structural schematic diagram of an adjustable flip mold core type mechanical arm positioning mechanism.

[0033] In the figure: 1. robot arm body; 2. base; 3. flip mechanism; 31. shell; 32. cylinder; 321. support frame; 33. first track; 331. first guide hole; 332. first rack; 34. second track; 35. moving frame; 351. second rack; 352. connecting plate; 353. synchronous block; 36. gear; 361. rotating rod; 37. rotating plate; 371. slide rail; 38. fixed frame; 381. first threaded rod; 382. limiting rod; 383. second threaded rod; 39. moving bar; 391. limiting groove; 4. positioning mechanism; 41. mounting frame; 42. driving motor; 43. fixing plate; 431. second guide hole; 44. clamping plate; 45. rotating column; 451. connecting block; 46. pull rod; 47. sliding block; 471. positioning rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Reference Figure 1 - Figure 5 As shown: an adjustable flip core type mechanical arm, comprising a base 2 and a mechanical arm body 1 installed on the top thereof, a flip mechanism 3 is installed at the output end of the mechanical arm body 1, and a positioning mechanism 4 is installed on one side of the flip mechanism 3;

[0036] The flip mechanism 3 includes a shell 31, a second track 34 is fixedly connected to the bottom of the inner cavity of the shell 31, a first track 33 is fixedly connected to the top of the shell 31, a fixing frame 38 is fixedly connected to the top of the first track 33, a rotating rod 361 is rotatably connected to the side wall of the shell 31, a gear 36 is fixedly connected to the outer surface of one end of the rotating rod 361, a second rack 351 is meshedly connected to the bottom of the gear 36, and a first rack 332 is meshedly connected to the top of the gear 36, the first rack 332 is slidably connected to the first track 33, and the second rack 351 is slidably connected to the second track 33. 4 is slidably connected, and the outer side of the second rack 351 is fixedly connected to the moving frame 35, one end of the moving frame 35 is fixedly connected to the connecting plate 352, the inner side of the fixed frame 38 is slidably connected to the moving bar 39, and the bottom of one end of the moving bar 39 is provided with a limiting groove 391, the top center of the fixed frame 38 is threadedly connected to the first threaded rod 381, and one side of the top of the fixed frame 38 is threadedly connected to the second threaded rod 383, the bottom ends of the second threaded rod 383 and the first threaded rod 381 are extended to the inner side of the limiting groove 391, and the side wall of the fixed frame 38 is threadedly connected to the limiting rod 382.

[0037] In this embodiment, when transferring the mold core, the cylinder 32 is used to drive and control the movement of the connecting plate 352, so that the connecting plate 352 drives the moving frame 35 to move together, and the system realizes precise mold core operation. Specifically, when the cylinder 32 pushes the connecting plate 352 to move, the displacement of the connecting plate 352 drives the moving frame 35 to move synchronously. At this time, the second rack 351 will slide smoothly on the inner side of the second track 34. The second rack 351 applies a lateral force to the gear 36 during the sliding process, causing the gear 36 to start rotating, thereby driving the rotating rod 361 connected thereto. As the rotating rod 361 rotates, the angle of the clamping mold core changes, realizing the precise flipping operation of the mold core.

[0038] During the flipping process, the gear 36 not only drives the rotating rod 361 to rotate, but also applies a force to the first rack 332. After being acted upon by the force of the gear 36, the first rack 332 will slide along the inner side of the first track 33, and further drive the moving bar 39 to move synchronously. At this time, the moving bar 39 will be restricted by the limit rod 382 during the movement to ensure that the moving bar 39 moves within a predetermined range. Through this restriction, the movement distance of the moving bar 39 is effectively controlled, thereby indirectly affecting the rotation angle of the gear 36, so that the flipping angle can be flexibly adjusted when the core is flipped. Especially when different batches of cores are installed, the system can pre-set the flipping angle according to specific needs to ensure that the core can be accurately aligned with the installation position.

[0039] In addition, when the moving bar 39 slides inside the fixed frame 38, the first threaded rod 381 and the limit rod 382 can extend into the inside of the moving bar 39 by rotating, further enhancing the accuracy of the system. If the second threaded rod 383 is inserted into the inside of the limit groove 391, the moving range of the moving bar 39 will be additionally restricted, and the rotation angle of the gear 36 will be limited to a maximum of ninety degrees. This setting ensures that when a small-angle flip operation is required, the flipping of the mold core will not exceed the set angle, thereby improving the operating accuracy. When the first threaded rod 381 is located inside the limit groove 391 and the second threaded rod 383 is away from the limit groove 391, the system allows a wider range of flipping, limiting the maximum rotation angle of the gear 36 to one hundred and eighty degrees. This adjustment mechanism not only improves the flexibility of the system, but also ensures that the installation of the mold core can be successfully completed when a large-angle flip is required, thereby enhancing the efficiency and adaptability of the production line.

[0040] The flipping operation of the mold core is realized through the drive of the cylinder 32, the linkage of the rack and gear 36, and the combined control of the limit rod 382 and the threaded rod. The angle is precisely controllable and suitable for production environments with different installation angle requirements. It can effectively improve the installation accuracy and production efficiency.

[0041] Embodiment 2: Figure 2 - Figure 5 As shown, the side wall of the second rack 351 is fixedly connected with a synchronization block 353, and the synchronization block 353 is slidably connected with the side wall of the second track 34. A cylinder 32 is installed on the top of the shell 31, and a support frame 321 is installed at one end of the cylinder 32, and the bottom of the support frame 321 is fixedly connected with the shell 31. The output end of the cylinder 32 is fixedly connected with the connecting plate 352, and one end of the rotating rod 361 is fixedly connected with a rotating plate 37, and the side wall of the cylinder 32 is fixedly connected with a slide rail 371. The rotating plate 37 is slidably connected with the slide rail 371, and the top of the first track 33 is provided with a first guide hole 331, and one end of the moving bar 39 passes through the first guide hole 331, and the moving bar 39 is slidably connected with the first guide hole 331, and the top of one end of the first rack 332 is fixedly connected with the moving bar 39.

[0042] In this embodiment, when the connecting plate 352 drives the moving frame 35 to move, the second rack 351 not only slides on the inner side of the second track 34, but the synchronization block 353 also slides in close cooperation with the side wall of the second track 34. The advantage of this design is that the synchronization block 353 can effectively provide lateral support for the second rack 351, ensuring that the second rack 351 and the moving frame 35 keep synchronization and move in a straight line during the entire movement process, avoiding any lateral deviation or swing. This structure ensures that there will be no mechanical errors caused by the rack deviating from the track during the movement process, thereby improving the positioning accuracy and working stability of the system.

[0043] When the gear 36 drives the rotating rod 361 to rotate, the rotating plate 37 also slides on the surface of the slide rail 371 to ensure that the rotation process remains stable without shaking or skewing. This design allows the rotating plate 37 to always fit the slide rail 371 through the cooperation between the rotating plate 37 and the slide rail 371, avoiding any irregular rotation movement, thereby effectively ensuring the accuracy of the core installation. During the core installation process, any slight deviation may cause the core to be misaligned, affecting the final processing quality, so it is particularly important to maintain the stability of the rotating structure.

[0044] At the same time, when the first rack 332 is limited by the first track 33 and moves along it, the moving bar 39 is also limited by the first guide hole 331 and the fixing frame 38, thereby ensuring the stability of the first rack 332 when moving. This design can ensure that the first rack 332 and the gear 36 remain stable and consistent when meshing through the synergistic effect of the guide hole and the fixing frame 38, avoiding the misalignment or poor meshing of the rack and the gear 36 due to skewness. In this way, the smoothness and accuracy of the entire transmission system are further improved.

[0045] In addition, through the cooperation between the first threaded rod 381, the second threaded rod 383 and the limit groove 391, the maximum angle of the gear 36 can be effectively controlled. This limit structure allows the flip angle to be precisely adjusted, thereby ensuring that the flip angle of the gear 36 always meets the preset requirements in different operating scenarios. When the limit rod 382 is used alone to limit the flip angle, although the flip angle can be freely adjusted by adjusting the limit rod 382, ​​high-precision angle control cannot be provided due to the lack of precise angle positioning. The combination of two different angle adjustment methods greatly improves the flexibility and freedom of flip adjustment, enables the system to adapt to the needs of different cores during assembly line processing, and further optimizes the efficiency and quality of core processing.

[0046] Embodiment 3: According to Figure 6 - Figure 8As shown, the positioning mechanism 4 includes a mounting frame 41, a fixed plate 43 is fixedly connected to one side of the mounting frame 41, and a rotating column 45 is rotatably connected to the inner side of the mounting frame 41. Two connecting blocks 451 are symmetrically fixedly connected to the outer surface of the rotating column 45, and a pull rod 46 is rotatably connected to the inner side of the connecting block 451. Two second guide holes 431 are provided on the surface of the fixing plate 43, and a sliding block 47 is slidably connected to the inner side of the second guide hole 431. A positioning rod 471 is fixedly connected to one side of the sliding block 47, and the positioning rod 471 is rotatably connected to one end of the pull rod 46. A clamping plate 44 is fixedly connected to one side of the sliding block 47, and a driving motor 42 is installed on the inner side of the mounting frame 41, and the output end of the driving motor 42 is fixedly connected to the rotating column 45. The width of both ends of the sliding block 47 is larger than the middle part of the second guide hole 431, and the rotating column 45 is rotatably connected to the side wall of the fixing plate 43, and the center of one side of the mounting frame 41 is fixedly connected to the rotating plate 37.

[0047] In this embodiment, when clamping and positioning the mold core, the drive motor 42 is used to drive the system to achieve precise clamping and positioning. In specific operation, the drive motor 42 drives the rotating column 45 to rotate through power output, and the rotational motion of the rotating column 45 is transmitted to other key components of the system through mechanical connection. When the rotating column 45 rotates, relying on the linkage between it and the connecting block 451, the connecting block 451 will further drive the sliding block 47 to move along a predetermined path.

[0048] During the movement of the sliding block 47, the sliding block 47 will slide smoothly inside the second guide hole 431. The second guide hole 431 serves as a guide and limit mechanism for the sliding block 47, ensuring that the sliding block 47 can only move in a limited linear direction, avoiding unnecessary offset or error, thereby ensuring the stability and accuracy of the entire system. During the linear movement of the sliding block 47, the two pull rods 46 play an important role, connecting and driving the two sliding blocks 47 to move synchronously.

[0049] As the two pull rods 46 pull, the two slide blocks 47 begin to approach each other. This synchronous movement causes the two clamping plates 44 connected to the slide blocks 47 to gradually move closer to the mold core. Under the joint action of the pull rods 46 and the slide blocks 47, the two clamping plates 44 move inward together, gradually clamping the mold core, thereby achieving accurate positioning and stable clamping of the mold core. Each step in this process is precisely controlled to ensure uniform distribution of clamping force, thereby avoiding damage to the mold core, and also ensuring the stability and accuracy of the mold core in subsequent processes.

[0050] After the core is clamped and positioned, it can effectively ensure that the core does not move or shake during the processing, ensuring the processing accuracy. In addition, it has high flexibility and can be adjusted according to cores of different specifications to meet the requirements of cores of different batches or shapes. Through the control of the drive motor 42, the movement of the sliding block 47, the pull rod 46, and the clamping plate 44 is coordinated and precise. The system can quickly and stably complete the core clamping process, greatly improving the efficiency and accuracy of the production line.

[0051] Embodiment 3: A method for using an adjustable flip core type mechanical arm, comprising the following steps:

[0052] 1) Clamping and positioning of the mold core. First, the driving motor 42 is used to drive the rotating column 45 to rotate. When the rotating column 45 rotates, the sliding block 47 is driven to move through the connecting block 451. When the sliding block 47 is active, it slides on the inner side of the second guide hole 431 and is limited by it to achieve precise linear movement. Driven by the two pull rods 46, the two sliding blocks 47 gradually approach each other, pushing the two clamping plates 44 to approach each other, thereby completing the positioning and clamping of the mold core.

[0053] 2) Transfer of the mold core. After the mold core is clamped, the connecting plate 352 is controlled to move by the drive of the cylinder 32, driving the moving frame 35 to move together. At this time, the second rack 351 slides on the inner side of the second track 34 and applies a lateral force to the gear 36, prompting the gear 36 to drive the rotating rod 361 to rotate. The rotation of the rotating rod 361 changes the angle of the mold core, thereby realizing the flipping of the mold core;

[0054] 3) Flipping, while the gear 36 drives the rotating rod 361 to rotate, it also applies force to the first rack 332, causing it to slide on the inner side of the first track 33, and the first rack 332 drives the moving bar 39 to move together. The movement of the moving bar 39 is limited by the limit rod 382, ​​limiting its movement range, thereby indirectly controlling the rotation angle of the gear 36 to achieve the adjustment of the flipping angle of the mold core;

[0055] 4) Limitation and adjustment of the flipping angle. When the moving bar 39 slides in the fixing frame 38, the first threaded rod 381 and the limiting rod 382 can extend into the moving bar 39 by rotation. If the second threaded rod 383 is inserted into the limiting groove 391, the movement of the moving bar 39 is limited, and the maximum rotation angle of the gear 36 is limited to degrees. If the first threaded rod 381 is located in the limiting groove 391 and the second threaded rod 383 is away from it, the maximum flipping angle of the gear 36 is degrees;

[0056] 5) To ensure the flipping stability, when the connecting plate 352 drives the moving frame 35 to move, the second rack 351 slides on the inner side of the second track 34, and the synchronization block 353 also slides on the side wall of the track to ensure the accuracy of the linear motion. When the gear 36 drives the rotating rod 361 to rotate, the rotating plate 37 slides along the slide rail 371 to ensure the stability of the system and prevent deflection. At the same time, the first rack 332 moves under the limit of the first track 33 to ensure the stable engagement with the gear 36.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable flip core type mechanical arm, comprising a base (2) and a mechanical arm body (1) mounted on the top thereof, characterized in that: The output end of the mechanical arm body (1) is equipped with a flipping mechanism (3), and one side of the flipping mechanism (3) is equipped with a positioning mechanism (4); The flip mechanism (3) comprises a shell (31), the bottom of the inner cavity of the shell (31) is fixedly connected to a second track (34), the top of the shell (31) is fixedly connected to a first track (33), the top of the first track (33) is fixedly connected to a fixing frame (38), the side wall of the shell (31) is rotatably connected to a rotating rod (361), the outer surface of one end of the rotating rod (361) is fixedly connected to a gear (36), the bottom of the gear (36) is meshedly connected to a second rack (351), and the top of the gear (36) is meshedly connected to a first rack (332), the first rack (332) is slidably connected to the first track (33), and the second rack (351) is slidably connected to the second track (33). The track (34) is slidably connected, and a movable frame (35) is fixedly connected to the outer side of the second rack (351), one end of the movable frame (35) is fixedly connected to a connecting plate (352), the inner side of the fixed frame (38) is slidably connected to a movable bar (39), a limiting groove (391) is provided at the bottom of one end of the movable bar (39), a first threaded rod (381) is threadedly connected to the center of the top of the fixed frame (38), and a second threaded rod (383) is threadedly connected to one side of the top of the fixed frame (38), the bottom ends of the second threaded rod (383) and the first threaded rod (381) both extend to the inner side of the limiting groove (391), and the side wall of the fixed frame (38) is threadedly connected to the limiting rod (382).

2. The adjustable flip core type mechanical arm according to claim 1, characterized in that: A synchronization block (353) is fixedly connected to the side wall of the second rack (351), and the synchronization block (353) is slidably connected to the side wall of the second track (34).

3. The adjustable flip core type mechanical arm according to claim 2, characterized in that: A cylinder (32) is installed on the top of the outer shell (31), a support frame (321) is installed on one end of the cylinder (32), and the bottom of the support frame (321) is fixedly connected to the outer shell (31).

4. The adjustable flip core type mechanical arm according to claim 3, characterized in that: The output end of the cylinder (32) is fixedly connected to the connecting plate (352), one end of the rotating rod (361) is fixedly connected to the rotating plate (37), and the side wall of the cylinder (32) is fixedly connected to the slide rail (371).

5. The adjustable flip core type mechanical arm according to claim 4, characterized in that: The rotating plate (37) is slidably connected to the slide rail (371); a first guide hole (331) is provided at the top of the first rail (33); one end of the moving bar (39) passes through the first guide hole (331), and the moving bar (39) is slidably connected to the first guide hole (331); and the top of one end of the first rack (332) is fixedly connected to the moving bar (39).

6. The adjustable flip core type mechanical arm according to claim 1, characterized in that: The positioning mechanism (4) comprises a mounting frame (41), one side of the mounting frame (41) is fixedly connected to a fixing plate (43), and the inner side of the mounting frame (41) is rotatably connected to a rotating column (45), the outer surface of the rotating column (45) is symmetrically fixedly connected to two connecting blocks (451), and the inner side of the connecting block (451) is rotatably connected to a pull rod (46).

7. The adjustable flip core type mechanical arm according to claim 6, characterized in that: Two second guide holes (431) are provided on the surface of the fixing plate (43), a sliding block (47) is slidably connected to the inner side of the second guide hole (431), a positioning rod (471) is fixedly connected to one side of the sliding block (47), and the positioning rod (471) is rotatably connected to one end of the pull rod (46).

8. The adjustable flip mold core type mechanical arm according to claim 7, characterized in that: A clamping plate (44) is fixedly connected to one side of the sliding block (47), a driving motor (42) is installed inside the mounting frame (41), and an output end of the driving motor (42) is fixedly connected to a rotating column (45).

9. The adjustable flip core type mechanical arm according to claim 8, characterized in that: The width of both ends of the sliding block (47) is greater than that of the middle of the second guide hole (431) and is rotatably connected. One end of the rotating column (45) is rotatably connected to the side wall of the fixed plate (43). The center of one side of the mounting frame (41) is fixedly connected to the rotating plate (37).

10. A method for using an adjustable flip core type mechanical arm, characterized in that: An adjustable flip mold core type mechanical arm according to any one of claims 1 to 9 is used, comprising the following steps: S1. Clamping and positioning of the mold core. First, the driving motor (42) is used to drive the rotating column (45) to rotate. When the rotating column (45) rotates, the sliding block (47) is driven to move through the connecting block (451). When the sliding block (47) is moving, it slides on the inner side of the second guide hole (431) and is limited by it to achieve precise linear movement. Driven by the two pull rods (46), the two sliding blocks (47) gradually approach each other, pushing the two clamping plates (44) to approach each other, thereby completing the positioning and clamping of the mold core. S2, transfer of the mold core. After the mold core is clamped, the connecting plate (352) is controlled to move by the drive of the cylinder (32), driving the moving frame (35) to move together. At this time, the second rack (351) slides on the inner side of the second track (34) and applies a lateral force to the gear (36), prompting the gear (36) to drive the rotating rod (361) to rotate. The rotation of the rotating rod (361) changes the angle of the mold core, thereby realizing the flipping of the mold core. S3, flipping, the gear (36) drives the rotating rod (361) to rotate, and at the same time, exerts a force on the first rack (332), causing it to slide on the inner side of the first track (33), and the first rack (332) drives the moving bar (39) to move together, and the movement of the moving bar (39) is limited by the limit rod (382), limiting its movement range, thereby indirectly controlling the rotation angle of the gear (36) to achieve the adjustment of the flipping angle of the mold core; S4, limiting and adjusting the flipping angle. When the moving bar (39) slides in the fixing frame (38), the first threaded rod (381) and the limiting rod (382) can extend into the moving bar (39) by rotation. If the second threaded rod (383) is inserted into the limiting groove (391), the movement of the moving bar (39) is limited, and the maximum rotation angle of the gear (36) is limited to degrees. If the first threaded rod (381) is located in the limiting groove (391) and the second threaded rod (383) is away from it, the maximum flipping angle of the gear (36) is degrees. S5. To ensure the stability of the rollover, when the connecting plate (352) drives the moving frame (35) to move, the second rack (351) slides on the inner side of the second track (34), and the synchronization block (353) also slides on the side wall of the track to ensure the accuracy of the linear motion. When the gear (36) drives the rotating rod (361) to rotate, the rotating plate (37) slides along the slide rail (371) to ensure the stability of the system and prevent deflection. At the same time, the first rack (332) moves under the limit of the first track (33) to ensure the stable meshing with the gear (36).

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