Automatic pressing equipment for deviation correction and positioning of forklift tire retaining ring

Abstract

The application discloses a kind of automatic press mounting tool for deviation rectification and positioning of forklift tire check ring, and relates to the technical field of tire production, including device frame body and conveying structure, the top of device frame body is equipped with push mechanism and guide structure, the push rod end of push mechanism is connected to resist pressing plate, characterized in that, the resist pressing plate is connected with press mounting mechanism by bolt and installation bottom plate is connected, the lower surface of installation bottom plate is equipped with guide positioning mechanism, the guide positioning mechanism is composed of three-jaw pneumatic cylinder, cylinder mounting plate and guide ring, the three-jaw pneumatic cylinder is located at the center, the cylinder mounting plate is located between three-jaw pneumatic cylinder and installation bottom plate space, and both ends extend three-jaw pneumatic cylinder range, a "Ji" shaped fixing piece is further provided between the cylinder mounting plate and installation bottom plate, the bottom of three-jaw pneumatic cylinder is equipped with positioning clamp jaw, the end of positioning clamp jaw is clamped in the clamp jaw slot on the inner ring wall of guide ring, deviation rectification and positioning effect is carried out on check ring, and press mounting work of auxiliary check ring is carried out.

Description

Technical Field

[0001] This invention relates to the field of tire manufacturing technology, specifically an automatic pressing fixture for correcting and positioning forklift tire retaining rings. Background Technology

[0002] In traditional tire assembly lines, retaining rings are installed manually or by machine through direct pressing. This operation can cause damage to the wheel hub and retaining ring, or even directly damage the retaining ring, rendering it unusable. These problems during the assembly process can lead to low yield or poor product quality.

[0003] In the prior art, patent document CN106514239A discloses a winding and forming device and method for ropes. The solution is as follows: This invention discloses an assembly auxiliary tool for a retaining ring for a rear take-off engine bore, including a hollow guide sleeve that can be connected to a wheel hub and a pressing block that can be inserted into the guide sleeve and connected to a pressing machine. The guide sleeve includes a hollow guide portion that can guide the pressing block to press the retaining ring into place and a positioning portion located below the guide portion and connected to it. The inner wall of the guide portion is provided with a first conical surface with a diameter that gradually increases from bottom to top, and the inner wall of the positioning portion is provided with a second conical surface with a diameter that gradually decreases from bottom to top. The minimum diameter of the first conical surface is smaller than the minimum diameter of the second conical surface, and an annular positioning surface is formed at the junction between the top of the second conical surface and the bottom of the first conical surface.

[0004] However, such devices are inconvenient to place due to the high length of the guide sleeve during operation, and may also tilt significantly when falling. The adjustment process still requires manual operation, which is not conducive to the pressing work. Therefore, this application proposes an automatic pressing fixture for forklift tire retaining ring correction and positioning to assist in the retaining ring correction work. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic pressing fixture for correcting and positioning forklift tire retaining rings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device frame and a conveying structure are included. The top of the device frame is provided with a pushing mechanism and a guiding structure. The end of the pushing rod of the pushing mechanism is connected to a pressure plate. The pressure plate is connected to a pressing mechanism and a mounting base plate via bolts. A guiding and positioning mechanism is provided on the lower surface of the mounting base plate. The guiding and positioning mechanism consists of a three-jaw cylinder, a cylinder mounting plate, and a guiding ring. The three-jaw cylinder is located at the center. The cylinder mounting plate is located in the space between the three-jaw cylinder and the mounting base plate, and both ends extend beyond the range of the three-jaw cylinder. A "U-shaped" fixing part is also provided between the cylinder mounting plate and the mounting base plate. The bottom of the three-jaw cylinder is provided with positioning jaws, and the ends of the positioning jaws are clamped into the jaw clamping grooves on the inner ring wall of the guiding ring.

[0007] Further, convex parts are provided on both sides of the cylinder mounting plate for fixing the lifting cylinder, and the ends of the telescopic shafts of the lifting cylinders are connected to the convex parts on both sides of the bottom of the fixing part.

[0008] Further, the guiding ring is in a ring shape and a guiding groove is provided at the bottom. The outer ring side wall of the guiding groove is arc-shaped.

[0009] Further, symmetric guiding columns are also provided on both sides of the mounting base plate, and the guiding columns vertically penetrate the cylinder mounting plate downward.

[0010] Further, the overall shape of the press-fitting mechanism is columnar with a through hole in the center. The guiding and positioning mechanism is located in the central hole of the press-fitting mechanism, and the opening at the bottom hole of the press-fitting mechanism is rounded.

[0011] Further, the fixing part is arranged to fit the top and side walls of the three-jaw cylinder.

[0012] Further, a limiting block is also provided on the side wall of the central hole of the press-fitting mechanism to resist the guiding ring.

[0013] Further, there are three positioning jaws on the three-jaw cylinder and they equally divide the ring space of the guiding ring.

[0014] Further, the fixing part and the cylinder mounting plate are integrally provided.

[0015] Further, the guiding structure is distributed in a columnar shape around the pushing mechanism and penetrates the top wall of the device frame to connect to the pressing plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The guiding groove is provided at the bottom of the guiding ring of the guiding and positioning mechanism of the present application, and the outer ring side wall of the guiding groove is arc-shaped. When contacting the retaining ring, the outer ring side wall of the guiding groove will make the retaining ring slide along the side wall slope, so that the retaining ring returns to the most suitable position, avoiding the retaining ring being squeezed on the hub or other positions during press-fitting due to the offset of the retaining ring position, resulting in damage to the retaining ring, and increasing the yield rate.

[0017] The pressing mechanism of this application is a column with a through hole in the center. The guide positioning mechanism is located in the center hole of the pressing mechanism. The bottom hole opening of the pressing mechanism is rounded. The center hole of the pressing mechanism facilitates the insertion of the retaining ring. The rounded corner treatment at the bottom opening of the hole allows the retaining ring to slide with the rounded corner arc during the pressing process, adjusting the position of the retaining ring and facilitating its entry into the center hole of the pressing mechanism. This also facilitates the subsequent position correction of the retaining ring by the guide ring.

[0018] The positioning jaws of the three-jaw cylinder of this application are three equally spaced rings of guide rings. The equally spaced positioning jaws form the force application points, which can make the force of the device more even and make the pressing process smoother, so that there will be no deviation or tilting during the pressing process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the pressing mechanism of the present invention; Figure 3 This is a schematic diagram of the overall structure of the guiding and positioning mechanism of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the guiding and positioning mechanism of the present invention; Figure 5 This is a schematic diagram of the guide ring structure of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the cross-sectional structure at point AA.

[0020] In the diagram: 1. Device frame; 2. Conveying structure; 3. Pushing mechanism; 4. Pressure plate; 5. Guide structure; 6. Pressing mechanism; 7. Guide positioning mechanism; 701. Three-jaw cylinder; 702. Cylinder mounting plate; 703. Guide column; 704. Guide ring; 705. Guide groove; 706. Gripper groove; 8. Mounting base plate; 9. Lifting cylinder; 10. Fixing component. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-6, in the embodiment of the present invention, when press-fitting the front wheel of a forklift, a retaining ring needs to be placed on the rim, and a press is used to press the retaining ring into the rim. The retaining ring should be placed exactly in the center of the rim without deviation, otherwise the retaining ring will be damaged. Therefore, a mechanism needs to be designed to align the retaining ring.

[0023] Place the tire of the hub to be press-fitted on the conveying structure 2, and send it to the press-fitting station through the conveying structure 2. Then, the push rod of the pushing mechanism 3 pushes the pressing plate 4. The pressing plate 4 is connected and installed on the mounting base plate 8 through bolts. The lower surface of the mounting base plate 8 is provided with a guiding and positioning mechanism 7. The bottom of the guiding ring 704 of the guiding and positioning mechanism 7 is provided with a guiding groove 705. The outer side wall of the guiding groove 705 is arc-shaped. When contacting the retaining ring, the outer side wall of the guiding groove 705 will cause the retaining ring to slide along the side wall slope, so that the retaining ring returns to the most suitable position, avoiding damage to the retaining ring caused by the offset of the retaining ring position during press-fitting and squeezing the retaining ring on the hub or other positions.

[0024] The guiding and positioning mechanism 7 is composed of a three-jaw cylinder 701, a cylinder mounting plate 702, and a guiding ring 704. The three-jaw cylinder 701 is located at the center. The cylinder mounting plate 702 is located in the space between the three-jaw cylinder 701 and the mounting base plate 8, and both ends extend beyond the range of the three-jaw cylinder 701. A "U-shaped" fixing part 10 is also provided between the cylinder mounting plate 702 and the mounting base plate 8. The bottom of the three-jaw cylinder 701 is provided with positioning claws, and the end of the positioning claws is clamped in the claw slot 706 on the inner ring wall of the guiding ring 704. The guiding ring 704 is in a ring shape and the bottom is provided with a guiding groove 705. The outer side wall of the guiding groove 705 is arc-shaped.

[0025] After the press-fitting is completed, the push rod of the pushing mechanism 3 retracts, causing the guiding and positioning mechanism 7 to return to its original position, separating the guiding ring 704 from the retaining ring, and then using a robotic arm to clamp the press-fitted tire and move it to the line.

[0026] On both sides of the mounting base plate 8, there are protrusions for fixing the lifting cylinder 9. The end of the telescopic shaft of the lifting cylinder 9 is connected to the protrusions on both sides of the bottom of the fixing part 10, so that the height of the guiding ring 704 can be adjusted in the guiding and positioning mechanism 7.

[0027] On both sides of the mounting base plate 8, there are also symmetric guiding columns 703. The guiding columns 703 vertically penetrate the cylinder mounting plate 702 downward, so that the levelness of the guiding ring 704 will not change when adjusting the height of the guiding ring 704 in the guiding and positioning mechanism 7, so as to avoid problems in press-fitting due to the inclination of the guiding ring 704 during the press-fitting process.

[0028] The pressing mechanism 6 is a column with a through hole in the center. The guide positioning mechanism 7 is located in the center hole of the pressing mechanism 6. The bottom hole opening of the pressing mechanism 6 is rounded. The center hole of the pressing mechanism 6 facilitates the insertion of the retaining ring. The rounded corner treatment at the bottom opening of the hole allows the retaining ring to slide with the rounded corner arc during the pressing process, adjusting the position of the retaining ring and facilitating its entry into the center hole of the pressing mechanism 6. This also facilitates the subsequent position correction of the retaining ring by the guide ring 704.

[0029] The fixing component 10 is integrally set with the cylinder mounting plate 702. The fixing component 10 is set to fit against the top and side wall of the three-jaw cylinder 701, and the fixing component 10, the cylinder mounting plate 702 and the three-jaw cylinder 701 are fixedly connected together to prevent the three-jaw cylinder 701 from shaking or causing the three-jaw positioning jaws of the three-jaw cylinder 701 to shake or shift, which would lead to errors in the subsequent pressing process. The fixing component 10 that fits against the three-jaw cylinder 701 can also play a great role in correcting these errors.

[0030] The positioning jaws of the three-jaw cylinder 701 are three equally spaced rings that divide the space of the guide ring 704. The equally spaced positioning jaws form the force application points, which can make the force of the device more even and make the pressing process smoother, so that there will be no deviation or tilting during the pressing process.

[0031] The center hole sidewall of the pressing mechanism 6 is also provided with a limiting block to block the guide ring 704. During the pressing process, the guide ring 704 needs to press down against the retaining ring. The reaction force will cause the guide ring 704 to move upward. The clamping groove 706 cannot achieve the limiting effect on the guide ring 704. Therefore, the limiting block is used to block and limit the guide ring 704 to solve this problem.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic press-fitting tooling for forklift tire retaining ring alignment, comprising a device frame body (1) and a conveying structure (2). A pushing mechanism (3) and a guiding structure (5) are provided at the top of the device frame body (1). The end of the pushing rod of the pushing mechanism (3) is connected to a pressing plate (4). It is characterized in that: The pressing plate (4) is connected to the press-fitting mechanism (6) and the mounting base plate (8) through bolts. A guiding and positioning mechanism (7) is provided on the lower surface of the mounting base plate (8); The guiding and positioning mechanism (7) consists of a three-jaw cylinder (701), a cylinder mounting plate (702), and a guiding ring (704). The three-jaw cylinder (701) is located at the center. The cylinder mounting plate (702) is located in the space between the three-jaw cylinder (701) and the mounting base plate (8), and both ends extend beyond the range of the three-jaw cylinder (701). A "U"-shaped fixing part (10) is also provided between the cylinder mounting plate (702) and the mounting base plate (8). A positioning jaw is provided at the bottom of the three-jaw cylinder (701), and the end of the positioning jaw is clamped in the jaw clamping groove (706) on the inner ring wall of the guiding ring (704); It further includes a lifting cylinder (9). Convex parts for fixing the lifting cylinder (9) are provided on both sides of the mounting base plate (8). The end of the telescopic shaft of the lifting cylinder (9) is connected to the convex parts on both sides of the bottom of the fixing part (10). The fixing part (10) and the cylinder mounting plate (702) are integrally provided; The guiding ring (704) is in a ring shape and a guiding groove (705) is provided at the bottom. The outer side wall of the guiding groove (705) is arc-shaped; The press-fitting mechanism (6) is in a columnar shape with a through hole opened at the center. The guiding and positioning mechanism (7) is located at the central hole of the press-fitting mechanism (6). The opening at the bottom hole of the press-fitting mechanism (6) is rounded; A limiting block is also provided on the side wall of the central hole of the press-fitting mechanism (6) to resist the guiding ring (704).

2. The automatic pressing fixture for forklift tire retaining ring alignment and positioning according to claim 1, characterized in that, Symmetrical guiding columns (703) are also provided on both sides of the mounting base plate (8), and the guiding columns (703) vertically penetrate through the cylinder mounting plate (702).

3. The automatic pressing fixture for forklift tire retaining ring alignment and positioning according to claim 1, characterized in that, The fixing part (10) is arranged in contact with the top and side walls of the three-jaw cylinder (701).

4. The automatic pressing fixture for forklift tire retaining ring alignment and positioning according to claim 1, characterized in that, The positioning jaws of the three-jaw cylinder (701) are three in number and equally divide the ring space of the guiding ring (704).

5. The automatic pressing fixture for forklift tire retaining ring alignment and positioning according to claim 1, characterized in that, The guiding structure (5) is distributed in a columnar shape around the pushing mechanism (3) and penetrates through the top wall of the device frame body (1) to connect to the pressing plate (4).

Images