A kind of automobile supercharging pipe assembly bushing and spacer bolt tooling equipment

Abstract

A kind of automobile supercharging pipe assembly bushing and spacer sleeve bolt tooling equipment, tooling fixture (7) is installed in the middle of workbench (1), first spacer sleeve bolt clamp (3), first bushing clamp (8) and first push rod (22) are installed in the left side of tooling fixture (7), second spacer sleeve bolt clamp (5), second bushing clamp (9) and second push rod (23) are installed in the right side of tooling fixture (7);Tooling fixture (7) is provided with supercharging pipe slot type positioning cavity inside, first bushing clamp (8) and second bushing clamp (9) are respectively installed in the opening outside of supercharging pipe slot type positioning cavity on the both sides of tooling fixture (7). Cylinder is used as power source, respectively drives the action of bolt clamp, supercharging pipe tooling fixture and bushing clamp;Ensure stability during assembly process. Through reasonable layout and control, the action of each component is coordinated and ordered during assembly process. Reduce operation difficulty. Improve assembly precision, positioning precision, clamping is reliable, ensure assembly quality. Reduce manual operation time and labor intensity, ensure product consistency, reduce overall production cost.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology of IPC classification B23P21 / 00 for assembling various different components into a combined unit, and relates to the field of turbocharger assembly technology. In particular, it relates to the structural improvement technology of auxiliary tooling equipment for assisting in the precise assembly of bushings and the installation of spacer bolts at the bend end of automotive turbocharger pipes, which is applicable to the automotive manufacturing field. Background Technology

[0002] The turbocharger manifold is a key component of a turbocharging system, and its core function is to improve engine performance by optimizing airflow path. A turbocharger manifold system typically consists of the following parts:

[0003] Air filter: Filters impurities in the intake air and protects the turbocharger.

[0004] Turbocharger: It increases the intake pressure by using exhaust gas to drive compressed air.

[0005] Intercooler: Cools the high-temperature compressed air, reducing the temperature by about 50-80℃ and increasing the air density.

[0006] Connecting pipes: Rubber hoses, steel pipes, or blow-molded pipes are used, with optimized layouts utilizing flexibility and vibration damping to buffer vibrations. For example, the intercooler inlet hose operates in a temperature range of 150℃ to 275℃, requiring excellent high and low temperature performance, oil resistance, and weather resistance.

[0007] Automotive turbochargers require the installation of bushings and spacer bolts in their application:

[0008] For turbochargers: bushings are used in high-temperature and high-pressure parts such as valve core holes and bearing housings, while spacers are used to isolate the rotor and stator components to reduce thermal expansion interference.

[0009] For the engine intake system: the booster pipe compensates for thermal deformation through bushings, and the bolted connection must take into account both sealing performance and vibration resistance.

[0010] In existing technologies, the assembly of bushings and bolts for complex piping systems such as automotive turbochargers requires multi-step coordination and has a low tolerance for error. For example, the clamp bolts in intercooler piping require simultaneous control of torque direction and clamping force, and the pass rate of traditional manual assembly is less than 70%. There are few publicly disclosed patents for similar technologies.

[0011] Patent application 201610781591.X discloses an automated assembly fixture for the turbocharger pipeline of the Buick Excelle, including a base plate. A clamping device and two profiles are mounted on the base plate. Pipelines and slides are mounted on the profiles. An electric torque gun is mounted on the clamping device, which is connected to four metal sliders. Limit blocks are installed on the inner side of the profiles. The fixture is driven by two pneumatic cylinders, which function as automatic switches. Error correction devices are provided on the two profiles. The vertical distance between the four metal sliders is adjustable.

[0012] In the assembly of booster pipes, the installation of bushings and spacer bolts is a critical step. However, existing assembly methods either rely entirely on manual operation or use simple auxiliary tooling, with almost no fully automated equipment being used, resulting in numerous problems. These include: High difficulty in automated assembly: In complex piping systems, the assembly of bushings and bolts requires multi-step coordination, leading to a low error tolerance. For intercooler pipe clamp bolts, both torque direction and clamping force must be controlled simultaneously; traditional manual assembly yields a pass rate of less than 70%. Issues may arise due to inaccurate positioning, causing bolts and bushings to be misaligned, affecting the performance and quality of the booster pipe; unreliable clamping may cause the booster pipe to wobble during assembly, resulting in errors; complex operation increases labor costs and production time; and poor adaptability to different booster pipe specifications may limit the tooling's application range. Therefore, a new type of booster pipe assembly tooling is needed to solve these problems. Utility Model Content

[0013] To address the aforementioned problems, this invention designs a tooling device for assembling bushings and spacer bolts for automotive turbocharger pipes, thereby improving assembly accuracy and efficiency, ensuring product quality consistency, and enhancing the versatility of the tooling.

[0014] Therefore, this utility model provides a tooling device for assembling bushings and spacer bolts for automotive turbocharger pipes, comprising: a workbench, a first spacer bolt clamp, a second spacer bolt clamp, a tooling fixture, a first bushing clamp, a second bushing clamp, a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder, a first push rod, and a second push rod. A first spacer bolt clamp, a second spacer bolt clamp, a tooling clamp, a first bushing clamp, a second bushing clamp, a first push rod, and a second push rod are installed on the worktable. The tooling clamp is installed in the middle of the worktable. The first spacer bolt clamp, the first bushing clamp, and the first push rod are installed on the left side of the tooling clamp, and the second spacer bolt clamp, the second bushing clamp, and the second push rod are installed on the right side of the tooling clamp. The rear end of the first push rod is connected to the first cylinder, the rear end of the first spacer bolt clamp is connected to the second cylinder, the upper side of the tooling clamp is connected to the third cylinder, the rear end of the second spacer bolt clamp is connected to the fourth cylinder, and the rear end of the second push rod is connected to the fifth cylinder. A pressure-boosting pipe groove-shaped positioning cavity is set inside the tooling clamp. The first bushing clamp and the second bushing clamp are respectively installed on the outer side of the opening of the pressure-boosting pipe groove-shaped positioning cavity on both sides of the tooling clamp. The first bushing clamp is located in front of the front end of the first push rod, and the second bushing clamp is located in front of the front end of the second push rod.

[0015] The third cylinder is installed on the front side of the upper end of the third bracket, the third bracket is installed vertically on the rear side of the middle of the workbench, and the third cylinder is installed directly above the tooling fixture.

[0016] The central axes of the first push rod and the second push rod are coaxial with and aligned with the central axes of the two ends of the booster tube, respectively.

[0017] The first bushing fixture and the second bushing fixture are installed vertically respectively. Each of the first bushing fixture and the second bushing fixture has a vertically set material groove in the middle. The lower end of the material groove of the first bushing fixture and the second bushing fixture is respectively opened with a pressing port corresponding to the front end of the first push rod or the second push rod and facing the left and right outer walls of the tooling fixture. The upper end of the material groove of the first bushing fixture and the second bushing fixture is respectively opened to set the first bushing insertion point and the second bushing insertion point.

[0018] On the left side of the worktable, the first cylinder is mounted horizontally on the rear left side of the worktable via the first bracket. The second cylinder is mounted at an angle from the upper left front to the lower middle rear via the second bracket. The second bracket is vertically fixed on the front left side of the tooling fixture on the worktable. The front side of the second cylinder is connected to the first spacer bolt fixture via its piston rod. The front end of the first spacer bolt fixture is located between the tooling fixture and the first bushing fixture. On the right side of the worktable, the fifth cylinder is mounted horizontally on the rear right side of the worktable via the fifth bracket. The fourth cylinder is mounted at an angle from the upper right front to the lower middle rear via the fourth bracket. The fourth bracket is vertically fixed on the front right side of the tooling fixture on the worktable. The front side of the fourth cylinder is connected to the second spacer bolt fixture via its piston rod. The front end of the second spacer bolt fixture is located between the tooling fixture and the second bushing fixture.

[0019] Furthermore, to achieve the above objectives, this utility model is configured as follows:

[0020] In particular, the tooling fixture includes upper and lower mold parts. The mating surfaces of the two mold parts have mating pressure pipe groove-shaped positioning cavities. The top of the upper mold part of the tooling fixture is connected to the lower end of the third cylinder, and the bottom surface of the lower mold part of the tooling fixture is fixed on the worktable.

[0021] In particular, bolt supports are fixedly installed on the lower front end of the first spacer bolt clamp and the second spacer bolt clamp, respectively. A positioning block is provided on the top surface of the bolt support.

[0022] In particular, electric screwdrivers are installed at the front ends of the first and second spacer bolt clamps. Dynamic torque sensors are installed on the first and second spacer bolt clamps.

[0023] In particular, the front ends of the first push rod and the second push rod are equipped with elastic sleeve telescopic push heads. The outer diameter of the inner shaft front end of the elastic sleeve telescopic push head matches the inner diameter of the bushing, and the outer diameter of the outer end sleeve of the elastic sleeve telescopic push head is not less than the outer diameter of the pressure boosting pipe end.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] Through rational layout and control of all components, and with a well-designed tooling system that facilitates convenient operation, the assembly process achieves coordinated and orderly movements. Operators only need to follow the steps to complete the assembly, reducing operational difficulty. The coordinated and orderly movements of the cylinder-driven fixtures efficiently complete the assembly processes of bolt installation and bushing pressing.

[0026] Improving assembly precision, ensuring accurate positioning, uniform force distribution, precise and stable preload, and reliable clamping: The booster pipe tooling fixture can firmly fix the booster pipe, preventing displacement during assembly and ensuring assembly quality. Precise positioning and reliable operation guarantee the accuracy of bolt and bushing assembly, reducing assembly errors and improving product quality.

[0027] Improve assembly efficiency: Automated fixture movements and orderly operation processes reduce manual operation time and labor intensity, thereby improving production efficiency.

[0028] Ensuring product consistency: Each fixture can accurately position the booster tube, bolts, and bushings, ensuring stable operation and precise control of each component. This results in high consistency for each assembled booster tube product, improving the overall quality level of the product.

[0029] Reduce production costs: Improve production efficiency and product quality, reduce scrap rates and rework costs, thereby reducing overall production costs. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the assembly structure of the booster pipe with bushing and spacer bolts in this utility model. It shows the booster pipe and the structure on which the bushing and spacer bolts are assembled.

[0032] Figure 2 This is a schematic diagram of the assembly fixture for the booster pipe bushing and spacer bolts in Embodiment 1 of this utility model. It shows the overall structure of the fixture, including the positional relationships and connection methods of components such as the worktable, cylinder, bushing clamp, bolt clamp, and booster pipe fixture.

[0033] The reference numerals in the figures include:

[0034] 1-Workbench, 2-Pressure booster pipe, 3-First spacer bolt clamp, 4-First bushing insertion point, 5-Second spacer bolt clamp, 6-Spacer bolt, 7-Tooling fixture, 8-First bushing clamp, 9-Second bushing clamp, 10-Second bushing insertion point, 11-First cylinder, 12-Second cylinder, 13-Third cylinder, 14-Fourth cylinder, 15-Fifth cylinder, 16-First bracket, 17-Second bracket, 18-Third bracket, 19-Fourth bracket, 20-Fifth bracket, 21-Bushing, 22-First push rod, 23-Second push rod. Detailed Implementation

[0035] It should be noted that:

[0036] 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.

[0037] 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.

[0038] In high-temperature and high-pressure areas such as the valve core bore of turbochargers, bushings are press-fitted with an interference fit to isolate metal parts from direct contact and reduce wear.

[0039] Near vibration sources such as engines and transmissions, rubber bushings absorb vibration energy, reduce noise, and protect precision components. They also improve sealing and motion accuracy by elastically deforming to fill assembly gaps. For example, slotted bushing technology reduces damage to the bore walls caused by interference during installation through plastic expansion, while simultaneously forming a residual compressive stress reinforcement layer, increasing fatigue life by more than 30%. In turbochargers, bushings isolate the rotor and stator components, reducing thermal expansion interference and ensuring stable component clearances. High-elasticity materials, such as metal alloys, are used to support axial loads and prevent component deformation. Bushing press-fitting requires controlled deformation to avoid affecting valve core operation or causing leakage. For example, deformation during turbocharger bushing press-fitting can lead to valve core jamming, posing a safety hazard. Under the combined effects of high temperature, high pressure, and vibration, bushings are prone to creep or fatigue spalling, and bolts may experience a decrease in preload due to stress relaxation. For example, turbocharger bushings need to operate continuously for more than 100,000 kilometers in environments above 600°C, making material stability crucial. Furthermore, bolt tightening torque directly affects connection reliability. For example, the clamp bolts of the intercooler pressurization pipeline need to be evenly stressed using an electric torque gun to prevent pipe leakage.

[0040] The core functions of automotive turbocharger hose assembly bushings and spacer bolts include:

[0041] 1) Wear-resistant protection: By isolating metal parts from direct contact, it reduces wear in high-temperature and high-pressure environments such as the valve core hole of a turbocharger, thus extending the equipment's lifespan.

[0042] 2) Vibration isolation: Near vibration sources such as engines and gearboxes, bushings can absorb vibration energy, reduce noise and protect precision components.

[0043] 3) Gap compensation: Filling assembly gaps through elastic deformation to improve sealing or motion accuracy. For example, slotted bushing technology reduces damage to the hole wall caused by interference installation through plastic expansion, while forming a residual compressive stress reinforcement layer to improve fatigue life.

[0044] 4) Torque control: Bolt tightening torque directly affects connection reliability.

[0045] 5) Anti-loosening design: to prevent vibration from causing the bolts to loosen.

[0046] 6) Material and process optimization: High-strength lightweight bolts are used, the bushing material takes into account both heat resistance and wear resistance, and the spacer needs to have a high elastic modulus to support the load.

[0047] The precision requirements for the finishing of automotive turbocharger pipes and the assembly of bushing spacer bolts are high. Specifically:

[0048] 7) The amount of deformation during bushing press-fitting must be controlled to avoid affecting valve core operation or causing leakage. For example, deformation during turbocharger bushing press-fitting may cause valve core jamming, leading to safety hazards.

[0049] 8) Bolt torque tolerance must strictly match the design value. Overload may cause thread stripping, while insufficient tolerance will lead to loose connection.

[0050] 9) Multiphysics coupling failure: Under the combined effects of high temperature, high pressure, and vibration, the bushing is prone to creep or fatigue spalling, and the bolts may experience a decrease in preload due to stress relaxation. Turbocharger bushings need to operate continuously for more than 100,000 kilometers in environments above 600℃, making material stability crucial.

[0051] In this invention, the tooling includes a workbench, on which are mounted multiple cylinders, bushing clamps, bolt clamps, and a booster pipe tooling clamp. The workbench provides basic support and an operating platform for the entire tooling; the cylinders serve as a power source, driving the bolt clamps, booster pipe tooling clamp, and bushing clamp respectively; the bushing clamps are used to orderly place and position the bushings so as to accurately press them into the booster pipe; the bolt clamps are used to hold the bolts and install them into the booster pipe spacers; the booster pipe tooling clamp is used to fix the booster pipe and ensure its stability during assembly.

[0052] This utility model includes: a workbench 1, a first spacer bolt clamp 3, a second spacer bolt clamp 5, a tooling clamp 7, a first bushing clamp 8, a second bushing clamp 9, a first cylinder 11, a second cylinder 12, a third cylinder 13, a fourth cylinder 14, a fifth cylinder 15, a first push rod 22, and a second push rod 23. The first spacer bolt clamp 3, the second spacer bolt clamp 5, the tooling clamp 7, the first bushing clamp 8, the second bushing clamp 9, the first push rod 22, and the second push rod 23 are installed on the workbench 1. The tooling clamp 7 is installed in the middle of the workbench 1. The first spacer bolt clamp 3, the first bushing clamp 8, and the first push rod 22 are installed on the left side of the tooling clamp 7, and the second spacer bolt clamp 5, the second bushing clamp 9, and the second push rod 23 are installed on the right side of the tooling clamp 7. The rear end of the first push rod 22 is connected to the first cylinder 11, and the first spacer bolt clamp 23 is connected to the first cylinder 15. The rear end of the bolt clamp 3 is connected to the second cylinder 12, the upper side of the tooling clamp 7 is connected to the third cylinder 13, the rear end of the second spacer bolt clamp 5 is connected to the fourth cylinder 14, and the rear end of the second push rod 23 is connected to the fifth cylinder 15. The tooling clamp 7 is provided with a pressure pipe groove-shaped positioning cavity. The first bushing clamp 8 and the second bushing clamp 9 are respectively installed on the outer side of the opening of the pressure pipe groove-shaped positioning cavity on both sides of the tooling clamp 7. The first bushing clamp 8 is located on the front side of the front end of the first push rod 22, and the second bushing clamp 9 is located on the front side of the front end of the second push rod 23.

[0053] 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.

[0054] Example 1: As shown in the attached document Figure 1 As shown, two bushings 21 are fitted inside the two ends of the pressure boosting pipe 2 of the bend structure, and two spacer bolts 6 are respectively installed on the spacer mounting seats on both sides of the bend structure of the pressure boosting pipe 2.

[0055] As attached Figure 2 As shown, the third cylinder 13 is installed on the front side of the upper end of the third bracket 18, the third bracket 18 is installed vertically on the rear side of the middle part of the workbench 1, and the third cylinder 13 is installed directly above the tooling fixture 7.

[0056] As mentioned above, the central axes of the first push rod 22 and the second push rod 23 are coaxial and aligned with the central axes of the two ports of the booster pipe 2, respectively.

[0057] As described above, the first bushing clamp 8 and the second bushing clamp 9 are respectively installed vertically. Each of the first bushing clamp 8 and the second bushing clamp 9 has a vertically arranged material groove in its middle. The lower end of the material groove of the first bushing clamp 8 and the second bushing clamp 9 is respectively opened with a pressing port corresponding to the front end of the first push rod 22 or the second push rod 23 and facing the left and right outer walls of the tooling fixture 7. The upper end of the material groove of the first bushing clamp 8 and the second bushing clamp 9 is respectively provided with a first bushing insertion point 4 and a second bushing insertion point 10. The bushing is pre-placed in the corresponding first bushing insertion point 4 and second bushing insertion point 10 of the first bushing clamp 8 and the second bushing clamp 9.

[0058] In the aforementioned configuration, on the left side of the workbench 1, the first cylinder 11 is mounted horizontally on the left rear of the workbench 1 via the first bracket 16, and the second cylinder 12 is mounted obliquely from the upper left front to the lower middle rear via the second bracket 17. The second bracket 17 is vertically fixed on the left front of the tooling fixture 7 on the workbench 1, and the front side of the second cylinder 12 is connected to the first spacer bolt clamp 3 via its piston rod. The front end of the first spacer bolt clamp 3 is located between the tooling fixture 7 and the first bushing clamp 8. Symmetrically, on the right side of the workbench 1, the fifth cylinder 15 is mounted horizontally on the right rear of the workbench 1 via the fifth bracket 20, and the fourth cylinder 14 is mounted obliquely from the upper right front to the lower middle rear via the fourth bracket 19. The fourth bracket 19 is vertically fixed on the right front of the tooling fixture 7 on the workbench 1, and the front side of the fourth cylinder 14 is connected to the second spacer bolt clamp 5 via its piston rod. The front end of the second spacer bolt clamp 5 is located between the tooling fixture 7 and the second bushing clamp 9.

[0059] As mentioned above, the tooling fixture 7 includes upper and lower mold parts. The mating surfaces of the two mold parts have mating pressure pipe groove-shaped positioning cavities. The top of the upper mold part of the tooling fixture 7 is connected to the lower end of the third cylinder 13, and the bottom surface of the lower mold part of the tooling fixture 7 is fixed on the worktable 1.

[0060] As described above, bolt supports are fixedly installed on the lower front end of the first spacer bolt clamp 3 and the second spacer bolt clamp 5, respectively. A positioning block is provided on the top surface of the bolt support. This block is used to support and position the left and right bolt seats of the booster pipe 2, respectively, so that the front ends of the first spacer bolt clamp 3 and the second spacer bolt clamp 5 can tighten and assemble the spacer bolt 6.

[0061] In this embodiment of the utility model, an electric screwdriver is further installed at the front end of the first spacer bolt clamp 3 and the second spacer bolt clamp 5.

[0062] In this embodiment of the present invention, the front ends of the first push rod 22 and the second push rod 23 are further provided with elastic sleeve telescopic push heads. The outer diameter of the inner shaft front end of the elastic sleeve telescopic push head matches the inner diameter of the bushing 21, and the outer diameter of the outer end sleeve of the elastic sleeve telescopic push head is not less than the outer diameter of the end of the pressure tube 2. After the inner shaft front ends of the elastic sleeve telescopic push heads of the first push rod 22 and the second push rod 23 extend forward and enter the bottom through holes of the first bushing clamp 8 and the second bushing clamp 9, pushing the bushing 21 into the pressure tube 2 port edge with an interference fit, the outer end sleeves of the elastic sleeve telescopic push heads of the first push rod 22 and the second push rod 23 abut against the outer port of the bushing 21 to ensure that it is accurately and stably embedded in the pressure tube 2 port, preventing it from loosening and retracting with the first push rod 22 and the second push rod 23.

[0063] In this embodiment of the utility model, the bushing 21 needs to withstand alternating loads, and its pressing accuracy directly affects the flexibility of the bypass valve of the booster pipe 2. After pressing, there are no scratches on the outer edge and inner wall of the bushing 21.

[0064] In this embodiment of the invention, dynamic torque sensors are installed on the first spacer bolt clamp 3 and the second spacer bolt clamp 5. Specifically, the dynamic torque sensor is a FUTEK TRH605.

[0065] The tightness of the bolts installed on the electric screwdriver can be quantitatively detected by a dynamic torque sensor combined with matching instruments or software. Its core principle is to measure the torque value in real time during the tightening process and record and analyze the stress state of the bolts through a data acquisition system.

[0066] The implementation process of this embodiment includes:

[0067] 1) Initial State Check: Before starting assembly, the operator carefully checks whether all parts of the tooling have returned to their original positions, including whether the cylinder piston rods have retracted into place and whether all clamps are in the loosened state. The operator first checks whether all tooling parts have returned to their original positions, ensuring that all cylinder piston rods have retracted into place and all clamps are in the loosened state, in preparation for subsequent assembly.

[0068] 2) Place the booster pipe 2 into the fixture 7, and place the spacer bolt 6 into the first spacer bolt clamp 3 and the second spacer bolt clamp 5; smoothly place the booster pipe 2 into the pre-designed positioning area in the fixture 7, i.e., the booster pipe groove positioning cavity, ensuring that the booster pipe 2 is tightly fitted with the positioning structure of the inner wall of the booster pipe groove positioning cavity; at the same time, perform preliminary positioning of the spacer bolt 6. Fix the booster pipe 2: Start the third cylinder 13, the piston rod of the third cylinder 13 advances, the fixture 7 closes, and the booster pipe 2 is firmly fixed on the fixture 7.

[0069] 3) Install spacer bolt 6: Start the second cylinder 12 and the fourth cylinder 14. The piston rods of these two cylinders push the first spacer bolt clamp 3 and the second spacer bolt clamp 5 to install the spacer bolt 6 into the spacer of the booster pipe 2; so that the spacer bolt 6 is accurately installed into the spacer of the booster pipe 2, and the assembly of the spacer bolt 6 is completed.

[0070] 4) The cylinder drives the bolt clamps to return to their original positions. The second cylinder 12 and the fourth cylinder 14 return to their original positions, and the first spacer bolt clamp 3 and the second spacer bolt clamp 5 return to their initial positions.

[0071] 5) Place the bushing 21: The bushing 21 is placed in the first bushing fixture 8 and the second bushing fixture 9 in an orderly manner; the bushing fixtures accurately position the bushing.

[0072] 6) Press the bushing 21 into the first bushing clamp 8 and the second bushing clamp 9; start the control of the first cylinder 11 and the fifth cylinder 15 to drive the cylinder piston rod forward; press the bushing 21 into the port of the booster pipe 2, and insert it with an interference fit to complete the assembly of the bushing 21.

[0073] 7) All cylinders 11, 12, 13, 14, and 15 return to their original positions. All clamps, including the first spacer bolt clamp 3, the second spacer bolt clamp 5, the tooling clamp 7, the first bushing clamp 8, and the second bushing clamp 9, are released. The upper and lower parts of the tooling clamp 7 are opened, and the operator removes the pressure pipe 2 product, which is equipped with the spacer bolt 6 and bushing 21, from the tooling clamp 7.

[0074] 8) Check the assembly quality of the product, and then proceed to the next round of assembly.

[0075] 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. A tooling device for assembling bushings and spacer bolts for automotive turbocharger pipes, comprising a worktable (1), a first spacer bolt clamp (3), a second spacer bolt clamp (5), a tooling fixture (7), a first bushing clamp (8), a second bushing clamp (9), a first cylinder (11), a second cylinder (12), a third cylinder (13), a fourth cylinder (14), a fifth cylinder (15), a first push rod (22), and a second push rod (23); characterized in that, The workbench (1) is equipped with a first spacer bolt clamp (3), a second spacer bolt clamp (5), a tooling clamp (7), a first bushing clamp (8), a second bushing clamp (9), a first push rod (22), and a second push rod (23); the tooling clamp (7) is installed in the middle of the workbench (1), and the first spacer bolt clamp (3), the first bushing clamp (8), and the first push rod (22) are installed on the left side of the tooling clamp (7), and the second spacer bolt clamp (5), the second bushing clamp (9), and the second push rod (23) are installed on the right side of the tooling clamp (7); the rear end of the first push rod (22) is connected to the first cylinder (11), the first... The rear end of the first spacer bolt clamp (3) is connected to the second cylinder (12), the upper side of the tooling clamp (7) is connected to the third cylinder (13), the rear end of the second spacer bolt clamp (5) is connected to the fourth cylinder (14), and the rear end of the second push rod (23) is connected to the fifth cylinder (15). The tooling clamp (7) is provided with a pressure tube groove-shaped positioning cavity. The first bushing clamp (8) and the second bushing clamp (9) are respectively installed on the outer side of the opening of the pressure tube groove-shaped positioning cavity on both sides of the tooling clamp (7). The first bushing clamp (8) is located in front of the front end of the first push rod (22), and the second bushing clamp (9) is located in front of the front end of the second push rod (23).

2. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, The third cylinder (13) is installed on the front side of the upper end of the third bracket (18), the third bracket (18) is installed vertically on the rear side of the middle part of the workbench (1), and the third cylinder (13) is installed directly above the tooling fixture (7).

3. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, The central axes of the first push rod (22) and the second push rod (23) are coaxial with and aligned with the central axes of the two ports of the booster tube (2).

4. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, The first bushing clamp (8) and the second bushing clamp (9) are installed vertically respectively. The first bushing clamp (8) and the second bushing clamp (9) each have a vertically set material groove in the middle. The lower end of the material groove of the first bushing clamp (8) and the second bushing clamp (9) are respectively opened with a pressing port corresponding to the front end of the first push rod (22) or the second push rod (23) and facing the left and right outer walls of the tooling clamp (7). The upper end of the material groove of the first bushing clamp (8) and the second bushing clamp (9) are respectively opened with a first bushing insertion point (4) and a second bushing insertion point (10).

5. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, On the left side of the workbench (1), the first cylinder (11) is mounted horizontally on the left rear of the workbench (1) via the first bracket (16), and the second cylinder (12) is mounted obliquely from the upper left front to the lower middle rear via the second bracket (17). The second bracket (17) is vertically fixed on the left front of the tooling fixture (7) on the workbench (1). The front side of the second cylinder (12) is connected to the first spacer bolt fixture (3) via its piston rod. The front end of the first spacer bolt fixture (3) is located between the tooling fixture (7) and the first bushing fixture (8). On the right side of the workbench (1), the fifth cylinder (15) is mounted horizontally on the right rear of the workbench (1) via the fifth bracket (20). The fourth cylinder (14) is mounted obliquely from the upper right front to the lower middle rear via the fourth bracket (19). The fourth bracket (19) is vertically fixed on the front right side of the tooling fixture (7) on the workbench (1). The front side of the fourth cylinder (14) is connected to the second spacer bolt fixture (5) via its piston rod. The front end of the second spacer bolt fixture (5) is located between the tooling fixture (7) and the second bushing fixture (9).

6. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, The tooling fixture (7) includes upper and lower molds. The mating surfaces of the two molds have a pressure-boosting groove-shaped positioning cavity. The top of the upper mold of the tooling fixture (7) is connected to the lower end of the third cylinder (13), and the bottom surface of the lower mold of the tooling fixture (7) is fixed on the worktable (1).

7. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, Bolt supports are fixedly installed on the lower front end of the first spacer bolt clamp (3) and the second spacer bolt clamp (5); a positioning block is provided on the top surface of the bolt support.

8. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, An electric screwdriver is installed at the front end of the first spacer bolt clamp (3) and the second spacer bolt clamp (5).

9. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, The first push rod (22) and the second push rod (23) are equipped with elastic sleeve telescopic push heads at their front ends. The outer diameter of the inner shaft of the elastic sleeve telescopic push head matches the inner diameter of the bushing (21). The outer diameter of the outer end sleeve of the elastic sleeve telescopic push head is not less than the outer diameter of the end of the pressure tube (2).

10. The tooling equipment for assembling bushings and spacer bolts for automotive turbocharger pipes according to claim 1, characterized in that, Dynamic torque sensors are installed on the first spacer bolt clamp (3) and the second spacer bolt clamp (5).

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