A kind of booster pipe assembly big, small bushing and sealing ring auxiliary tooling equipment

Abstract

An auxiliary tooling device for assembling large and small bushings and sealing rings for a booster pipe is provided. A first cylinder (7) is vertically installed on the right side of the workbench (19). The lower end of the first cylinder (7) is connected to a pipe clamping tool (18). A bushing tool (8) is vertically installed on the left side of the pipe clamping tool (18). A front push rod (10) is horizontally installed on the left side of the bushing tool (8) via a second cylinder (14). The pipe clamping tool (18) includes two parts: an upper mold and a lower mold. The upper and lower mold mating surfaces of the pipe clamping tool (18) have corresponding mold cavities that match the shape of the booster pipe. The upper end of the upper mold of the pipe clamping tool (18) is connected to the first cylinder (7) via a piston. The lower mold of the pipe clamping tool (18) is fixedly installed on the workbench (19). The bushing fixture and pipe clamping fixture are precisely aligned, and the cylinder pushes the front push rod to accurately install the bushing into the pressure booster pipe port. The sealing ring is installed simultaneously and quickly, improving the assembly accuracy and quality of the bushing and sealing ring, increasing assembly efficiency, optimizing tooling application costs, and offering higher precision, reliability, and mechanization. This reduces equipment failure rates; the assembly cycle is fast and coordinated, saving loading and unloading time.

Description

Technical Field

[0001] This utility model belongs to the IPC classification B23P19 / 00, which is a simple assembly and combination processing technology for metal parts or products or metal parts and non-metal parts. Specifically, it belongs to the field of pneumatic tooling assembly of automotive parts. In particular, it relates to the structural improvement technology of a combination processing device that assists manual operation in tightly inserting and clamping the large and small bushings of the booster pipe and installing the sealing ring. It is applicable to the production and manufacturing of pipeline systems such as intercooler pipes and booster pipes in automotive engines. Background Technology

[0002] Currently, in automotive turbocharger systems on the market, the connection between rigid pipes and rubber hoses requires bushing positioning and sealing rings for sealing. Traditional assembly processes rely on manual operation, and there are relatively few patent applications for auxiliary tooling technologies.

[0003] Patent application 202220875393.0 relates to the field of sealing ring assembly technology and discloses a bushing sealing ring assembly device, including a sealing ring feeding module, a sealing ring assembly module, a bushing feeding module, and a defective rejection module. The sealing ring feeding module includes a sealing ring feeding vibratory feeder, with a sealing ring feeding direct vibrator fixedly installed at the output end of the vibratory feeder, and a sealing ring dispensing platform fixedly installed at the other end of the direct vibratory feeder. The bushing feeding module includes a bushing feeding vibratory feeder. This bushing sealing ring assembly device uses a vibratory feeder to feed both the bushing and the sealing ring. After the sealing ring is fed to the correct position and dispensed, the bushing is similarly fed to the correct position and dispensed. Then, a sealing ring assembly gripper picks up the sealing ring and completes the assembly. After assembly, qualified products are dispensed into a qualified material channel, and unqualified products are dispensed into an unqualified material channel, facilitating the automated assembly of the gas meter large magnetic ring bushing sealing ring.

[0004] The following defects exist:

[0005] The existing tooling lacks optimized positioning design, resulting in insufficient positioning accuracy and unstable quality. It is difficult to guarantee the coaxiality of the bushing and pipeline and the installation position accuracy of the sealing ring, which can easily lead to sealing failure and may cause pipeline leakage or detachment risks.

[0006] Low level of mechanical assistance and low assembly efficiency: manual intervention is required for bushing transfer or seal installation, resulting in limited efficiency gains. The long assembly time per unit makes it difficult to meet the cycle time requirements of modern production lines.

[0007] Poor adaptability: Existing auxiliary tooling is usually designed for a single type of booster pipe and cannot easily accommodate the switching needs of multiple sizes of bushings.

[0008] Safety hazards: During the assembly of high-pressure pipelines, manual operation may cause safety accidents due to incomplete tightening of bushings or sealing rings, or due to the easy damage of sealing rings during manual installation.

[0009] High costs: Manual assembly results in significant efficiency losses, and the high scrap rate leads to increased rework costs. The scrap rate of traditional assembly processes is approximately 3%, and for a certain vehicle model, pipeline downtime due to sealing issues accounted for up to 15% of the production line downtime. Utility Model Content

[0010] This invention designs an auxiliary tooling device for assembling large and small bushings and sealing rings for booster pipes, solving the practical problems of low efficiency in purely manual assembly and lack of suitable mechanized auxiliary assembly tooling.

[0011] Therefore, this utility model provides an auxiliary tooling device for assembling large and small bushings and sealing rings for a booster pipe, comprising: a first cylinder, a bushing fixture, a front push rod, a second cylinder, a pipe clamping fixture, and a worktable. The first cylinder is vertically mounted on the right side of the worktable, with its lower end connected to the pipe clamping fixture. The bushing fixture is vertically mounted on the left side of the pipe clamping fixture, and the front push rod is horizontally mounted on the left side of the bushing fixture via the second cylinder. The pipe clamping fixture comprises upper and lower molds, with corresponding mold cavities on the mating surfaces of the upper and lower molds that mate with the shape of the booster pipe. The upper end of the upper mold is connected to the first cylinder via a piston, and the lower mold is fixedly mounted on the worktable.

[0012] The rear section of the front push rod is connected to the piston of the second cylinder via a coupling.

[0013] The first cylinder is fixedly mounted on the workbench by a stand.

[0014] The second cylinder is mounted horizontally on the left end of the workbench, and the front end of the second cylinder, i.e. the right side, is connected to the front push rod through piston transmission.

[0015] The vertically installed bushing fixture has a vertical cutting groove in the middle, a bushing inlet at the upper end of the bushing fixture groove, and a left-right through hole on the lower end wall of the bushing fixture groove.

[0016] Furthermore, to achieve the above objectives, the present invention is configured such that: the bottom of the upright frame and the lower mold of the clamping tool are fixedly installed on the workbench by a flat bracket; the second cylinder and the front push rod are installed at an angle to the upper right, and the bottom of the second cylinder is installed on the first inclined platform by an inclined bracket; the second inclined platform is installed on the workbench below the front push rod.

[0017] In particular, a guide rail is provided on the top surface of the second inclined platform, and a guide pressure plate is slidably installed on the guide rail. The rear section of the front push rod passes through the guide pressure plate and connects to the piston of the second cylinder.

[0018] In particular, RFID tags are placed inside the mold cavity of the pipe clamping tool.

[0019] In particular, safety light curtains are installed at the edges of the workbench.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] The bushing fixture and pipe clamping fixture are precisely aligned, and the cylinder pushes the front push rod to accurately install the bushing into the pressure booster pipe port. Simultaneously and quickly, the sealing ring is installed, improving the assembly accuracy and quality of the bushing and sealing ring. The coaxiality deviation of the bushing installation is reduced from ±0.5mm in manual assembly to ±0.1mm, elevating the assembly process capability from "barely meeting specifications" to "highly stable with an extremely low defect rate." This improves assembly efficiency, optimizes tooling application costs, and provides an assembly solution with higher precision, reliability, and mechanization. Attached Figure Description

[0022] The following figures are illustrative and should not be construed as limiting the scope of this invention. Referring to the figures helps the reader understand the embodiments of this invention and further appreciate its advantages and technical features.

[0023] Figure 1 This is a three-dimensional structural diagram of a booster pipe and the large bushing, small bushing, and sealing ring components to be assembled according to this utility model. It shows the booster pipe body and its two-port structure, as well as the large bushing, small bushing, and sealing ring components to be installed and their corresponding assembly positions.

[0024] Figure 2 This is a three-dimensional structural diagram showing the completed form of a booster pipe according to this utility model after assembling a large bushing, a small bushing, and a sealing ring. It shows that the large bushing, small bushing, and sealing ring are tightly installed with an interference fit.

[0025] Figure 3 This is an isometric three-dimensional structural diagram of an auxiliary tooling device for assembling a pressure booster pipe, including a large bushing, a small bushing, and a sealing ring, as shown in Example 1.

[0026] The reference numerals in the figures include:

[0027] 1. Pressure booster pipe, 2. Large liner kit, 3. Small liner kit, 4. Sealing ring, 5. Flat support, 6. Vertical frame, 7. First cylinder, 8. Bushing fixture, 9. Bushing inlet, 10. Front push rod, 11. Guide pressure plate, 12. Coupling, 13. Inclined frame, 14. Second cylinder, 15. First inclined platform, 16. Guide rail, 17. Second inclined platform, 18. Pipe clamping fixture, 19. Worktable, 20. Safety light curtain. Detailed Implementation

[0028] It should be noted that:

[0029] In the description of this utility model, unless otherwise expressly specified and limited, the terms "comprising" and "having," and any variations thereof, are intended to cover other possible options under the same logic not listed. For example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or device. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Furthermore, terms such as "horizontal," "vertical," and "suspended" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. The terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components.

[0030] Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.

[0031] In this utility model, as shown in the appendix Figure 1 , 2 As shown, a sealing ring 4 is embedded on the center pipe opening of the elbow flange of the booster pipe 1, a small liner 3 is embedded on the inner wall of the connecting hole on the outer edge of the flange, and a large liner 2 is embedded on the inner wall of the straight pipe opening of the booster pipe 1. Installing the large liner 2, small liner 3, and sealing ring 4 on the booster pipe 1 requires an interference fit according to standard requirements, but this is difficult to achieve manually, and even general auxiliary tools are insufficient to meet the requirements.

[0032] This utility model includes: a first cylinder 7, a bushing fixture 8, a front push rod 10, a second cylinder 14, a pipe clamping fixture 18, and a worktable 19. The first cylinder 7 is vertically mounted on the upper right side of the worktable 19. The lower end of the first cylinder 7 is connected to the pipe clamping fixture 18. The bushing fixture 8 is vertically mounted on the left side of the pipe clamping fixture 18. The front push rod 10 is horizontally mounted on the left side of the bushing fixture 8 via the second cylinder 14.

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Example 1: As shown in the attached document Figure 3 As shown, the pipe clamping fixture 18 comprises upper and lower molds. The upper end of the upper mold of the pipe clamping fixture 18 is connected to the first cylinder 7 via a piston, and the lower mold of the pipe clamping fixture 18 is fixedly mounted on the worktable 19. Furthermore, corresponding mold cavities that match the shape of the pressurizing pipe are opened on the mating surfaces of the upper and lower molds of the pipe clamping fixture 18; moreover, pressure blocks are respectively set on the top of the upper mold cavity of the pipe clamping fixture 18, corresponding to the small lining kit 3 and the sealing ring 4. The pressurizing pipe is placed in the mold cavity of the mating surface of the upper and lower molds of the pipe clamping fixture 18, and then the small lining kit 3 and the sealing ring 4 are inserted into the corresponding positions on the elbow flange of the pressurizing pipe 1. During the clamping process of the upper and lower molds of the pipe clamping fixture 18, the small lining kit 3 and the sealing ring 4 are quickly and accurately installed.

[0035] In the aforementioned configuration, the rear section of the front push rod 10 is connected to the piston of the second cylinder 14 via a coupling 12.

[0036] As mentioned above, the first cylinder 7 is fixedly mounted on the workbench 19 by the stand 6.

[0037] As mentioned above, the second cylinder 14 is mounted horizontally on the left end of the worktable 19, and the front end of the second cylinder 14, i.e. the right side, is connected to the front push rod 10 through piston transmission.

[0038] As described above, the vertically installed bushing fixture 8 has a vertical cutting groove in the middle, a bushing inlet 9 at the upper end of the bushing fixture 8, and a left-right through hole on the lower wall of the bushing fixture 8. The large bushing assembly 2 is inserted downward into the bushing fixture 8 through the bushing inlet 9. The large bushing assembly 2 falls to the bottom of the bushing fixture 8, which facilitates the second cylinder 14 to drive the front push rod 10 forward to accurately squeeze the large bushing assembly 2 into the upper and lower dies that have been positioned and clamped between the upper and lower dies of the clamping fixture 18.

[0039] In this embodiment of the utility model, the bottom of the lower mold of the upright frame 6 and the clamping tool 18 is fixedly installed on the workbench 19 by the flat bracket 5; the second cylinder 14 and the front push rod 10 are installed at an angle to the upper right, and the bottom of the second cylinder 14 is installed on the first inclined platform 15 by the inclined bracket 13; the second inclined platform 17 is installed on the workbench 19 below the front push rod 10.

[0040] Preferably, a guide rail 16 is provided on the top surface of the second inclined platform 17, and a guide pressure plate 11 is slidably installed on the guide rail 16. The rear section of the front push rod 10 passes through the guide pressure plate 11 and is connected to the piston of the second cylinder 14.

[0041] In this embodiment of the utility model, the guide pressure plate 11 supports the front push rod 10 and slides along the guide rail 16 on the second inclined platform 17.

[0042] In this embodiment of the utility model, the key technical parameters include: applicable pipe diameter Φ15-Φ60mm booster pipe 1; working air pressure of the first cylinder 7 and the second cylinder 14 is 0.6±0.05MPa; equipment failure rate <0.5%; assembly cycle time ≤18s / piece, including manual loading and unloading time.

[0043] The application and assembly process principles in this embodiment include:

[0044] Step 1: Check that all tooling has returned to its original position; the inside of bushing tooling 8 is emptied, the material groove of bushing tooling 8 and the bushing inlet 9 are unobstructed, the front ejector rod 10 and coupling 12 retract to the left along the guide rail 16 with the guide pressure plate 11; the upper and lower molds of the pipe clamping tooling 18 are in the open state; the first cylinder 7 and the second cylinder 14 retract.

[0045] Step 2: In the space between the upper and lower molds of the clamping fixture 18, first place the pressure boosting pipe 1, then the sealing ring 4, and finally the small bushing 3.

[0046] Step 3: The first cylinder 7 is pushed down, and the upper and lower molds of the clamping fixture 18 are pressed and locked together, completing the assembly of the sealing ring 4 and the small bushing kit 3;

[0047] Step 4: Place the large bushing kit 2 into the bushing fixture 8 in an orderly manner;

[0048] Step 5: The second cylinder 14 is pushed forward, and the front push rod 10 presses the large bushing kit 2 into the left port of the booster pipe 1 with an interference fit, completing the assembly.

[0049] Step 6: Once the first cylinder 7 and the second cylinder 14 have returned to their original positions, the assembled booster pipe 1 product is taken out between the upper and lower molds of the opened pipe clamping fixture 18.

[0050] The practicality and advancement of this utility model embodiment include:

[0051] Experimental verification: It has passed bench testing and has been used in batch trials on the pipeline of a new model of a certain OEM. It provides a more precise and reliable improved solution with a higher degree of mechanization for the assembly of automotive turbocharger pipe bushing sealing ring components.

[0052] Assembly accuracy and quality improved: coaxiality deviation improved from ±0.5mm in manual assembly to ±0.1mm, and the CPK value improved from 1.0 to 1.67, which means that the process capability was improved from "barely meeting the specifications" to "highly stable and with an extremely low defect rate".

[0053] Improve assembly efficiency: Daily output per line increased from 800 pieces to 2000 pieces.

[0054] Optimize tooling application costs: save approximately 600,000 yuan in rework costs annually, and the equipment investment payback period is less than 1 year.

[0055] Furthermore, this embodiment of the invention can enhance error prevention and safety light curtain design to ensure operator safety and comply with the ISO 13849 functional safety standard. It includes:

[0056] 1) An RFID tag is placed inside the mold cavity of the pipe clamping fixture 18. After the upper and lower molds of the pipe clamping fixture 18 are locked, an RFID tag is embedded in the outer wall of the pressure boosting pipe 1; an identification mark is set on the assembled pressure boosting pipe 1 product, so that the corresponding assembly parameters can be easily read and called when the production line or this equipment is further automated.

[0057] 2) Install a safety light curtain 20 at the edge of the workbench 19. A protective light curtain is formed in the operating area inside the safety light curtain 20, and the machine will stop immediately if unauthorized personnel intrude.

[0058] Based on the embodiments of this utility model described above, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this utility model.

Claims

1. An auxiliary tooling device for assembling large and small bushings and sealing rings on a booster pipe, comprising a first cylinder (7), a bushing tooling (8), a front push rod (10), a second cylinder (14), a pipe clamping tooling (18), and a worktable (19); characterized in that, The first cylinder (7) is vertically installed on the upper right side of the workbench (19). The lower end of the first cylinder (7) is connected to the pipe clamping fixture (18). The bushing fixture (8) is vertically installed on the left side of the pipe clamping fixture (18). The front push rod (10) is horizontally installed on the left side of the bushing fixture (8) through the second cylinder (14). The pipe clamping fixture (18) includes two parts: upper and lower molds. The upper and lower mold mating surfaces of the pipe clamping fixture (18) have corresponding mold cavities that match the shape of the booster pipe. The upper end of the upper mold of the pipe clamping fixture (18) is connected to the first cylinder (7) through a piston. The lower mold of the pipe clamping fixture (18) is fixedly installed on the workbench (19).

2. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, The rear section of the front push rod (10) is connected to the piston of the second cylinder (14) via a coupling (12).

3. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, The first cylinder (7) is fixedly mounted on the workbench (19) by a stand (6).

4. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, The second cylinder (14) is mounted horizontally on the left end of the worktable (19), and the front end of the second cylinder (14), i.e. the right side, is connected to the front push rod (10) through piston transmission.

5. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, The vertically installed bushing fixture (8) has a vertical cutting groove in the middle, a bushing inlet (9) at the upper end of the bushing fixture (8) groove, and a left-right through hole on the lower end wall of the bushing fixture (8) groove.

6. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, The bottom of the lower mold of the upright frame (6) and the clamping tool (18) is fixedly installed on the workbench (19) by the flat bracket (5).

7. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 6, characterized in that, The second cylinder (14) and the front push rod (10) are installed at an angle to the upper right. The bottom of the second cylinder (14) is mounted on the first inclined platform (15) via the inclined bracket (13). The second inclined platform (17) is installed on the worktable (19) on the lower side of the front push rod (10).

8. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, An RFID tag is placed inside the mold cavity of the clamping tool (18).

9. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 1, characterized in that, A safety light curtain (20) is installed at the edge of the workbench (19).

10. The auxiliary tooling equipment for assembling large and small bushings and sealing rings for a booster pipe according to claim 7, characterized in that, The top surface of the second inclined platform (17) is provided with a guide rail (16), and a guide pressure plate (11) is slidably installed on the guide rail (16). The rear section of the front push rod (10) passes through the guide pressure plate (11) and connects to the piston of the second cylinder (14).

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