Assembly center and assembly method of brake chamber

Abstract

The invention relates to the field of brake chamber assembly, and discloses an assembly center of a brake chamber, an oil coating unit of the assembly center comprises a first gear and a second gear, the first gear drives the second gear to rotate, a ring-shaped mounting frame is mounted on the end face of the first gear, a through hole is formed in the middle area of the first gear, and an open hole corresponding to the through hole is formed in a workbench; the through hole extends to the position below the workbench. An oil spraying mechanism is arranged below the workbench, and an oil spraying nozzle of the oil spraying mechanism can extend to the inner side of the ring-shaped mounting frame from the interior of the through hole; the first hole comprises a middle circular hole part, and strip-shaped hole parts are arranged on the two sides of the circular hole part; and a clamping mechanism is further included, and the clamping end of the clamping mechanism extends to the lower side of the press-fitting plate from the strip-shaped hole part. The assembly center can achieve automatic assembly and is high in assembly precision and low in labor intensity.

Description

Technical Field

[0001] This invention relates to the field of brake chamber assembly, and more particularly to a brake chamber assembly center and assembly method. Background Technology

[0002] The brake chamber is the core actuator of an automotive braking system, converting compressed air energy into mechanical thrust through a housing and diaphragm structure. Internally, it is divided into two independent chambers by a rubber diaphragm, connecting the dual-chamber brake valve to the atmosphere. Under air pressure, it pushes a push rod to achieve brake adjustment. Inside, there is a piston and a spring; the piston is connected to the housing via a rod, allowing it to slide along the rod. However, in traditional solutions, the assembly of the housing, piston, and rod is done manually by applying oil. This results in low automation, and due to the numerous irregularities in the assembly structure, it is difficult to ensure the stability and reliability of the assembly process. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an assembly center and assembly method for a brake chamber.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An assembly center for a brake chamber includes an oiling unit and an assembly unit; it also includes a worktable on which the oiling unit and the assembly unit are mounted. The oiling unit includes a first gear and a second gear. The first gear drives the second gear to rotate. A ring-shaped mounting bracket is installed on the end face of the first gear. The middle area of ​​the first gear is a through hole. An opening corresponding to the through hole is provided on the worktable. The through hole extends to the bottom of the worktable. An oil spraying mechanism is provided below the worktable. The oil spray nozzle of the oil spraying mechanism can extend from the through hole to the inside of the ring-shaped mounting bracket. The assembly unit includes a liftable frame, a connection and installation unit at the upper part of the frame, a lifting unit at the lower end of the frame, a positioning base inside the frame, the positioning base being located below the connection and installation unit, the connection and installation unit including a pressure plate, a pressure block being detachably installed on the lower side of the pressure plate, a first hole in the middle of the pressure block, and first slots on both sides of the pressure block, the first slots communicating with the first hole; The first hole includes a central circular hole portion, with strip-shaped hole portions on both sides of the circular hole portion; it also includes a clamping mechanism, with the clamping end of the clamping mechanism extending from the strip-shaped hole portions to the underside of the press plate.

[0005] Preferably, the oiling unit also includes an oiling substrate, which is fixedly mounted on the worktable. The oiling substrate has a mounting hole in the middle. The second gear is mounted on the oiling substrate through a bearing and is coaxially arranged with the mounting hole. Multiple threaded holes are opened on the end face of the second gear. A ring-shaped mounting bracket is mounted on the end face of the second gear. The ring-shaped mounting bracket includes a spray positioning ring, and the inner side of the spray positioning ring is a positioning surface.

[0006] Preferably, the system also includes a drive motor mounted on and below the oiling substrate. The drive motor drives the first gear to rotate, and the first gear meshes with the second gear to drive the second gear to rotate. The transmission ratio of the first gear and the second gear is 1:4, with the first gear being smaller than the second gear. The system also includes a bracket, which is fixedly mounted below the oiling substrate. A first linear module is mounted on the bracket, and the oil spraying mechanism is mounted on the first linear module and can move up and down under the drive of the first linear module.

[0007] Preferably, the frame includes an upper plate and a lower plate, as well as support columns. The upper plate is fixedly mounted on the support columns, and the four corners of the lower plate are mounted on the support columns via linear bearings. A connecting and mounting unit is mounted on the upper plate. The connecting and mounting unit includes a pressure plate, the four corners of which are mounted on the upper plate via guide shafts. It also includes a top plate, on which a pressure cylinder is mounted. The pressure cylinder can push the pressure plate to slide along the guide shaft. A first motor is mounted on the pressure plate, and a bit is connected to the lower end of the first motor. The bit extends downward from a first hole.

[0008] Preferably, the lifting unit includes a worm gear jack and a lifting rod. The worm gear jack drives the lifting rod to move up and down, and the upper end of the lifting rod is fixedly connected to the lower plate.

[0009] Preferably, a mounting base is provided in the middle area of ​​the lower plate, and the mounting base is mounted on the slide rail. A longitudinal cylinder is provided on the left side of the mounting base, and the piston rod end of the longitudinal cylinder is fixedly connected to the mounting base by a fixing block. The slide rail is also longitudinally arranged. It also includes a positioning cylinder, which is located on the other side of the longitudinal cylinder. The positioning cylinder and the longitudinal cylinder are distributed on both sides of the mounting base. A bayonet is provided in the middle of the mounting base, and a positioning block is provided on the positioning cylinder. Both the bayonet and the positioning block are wedge-shaped.

[0010] Compared with existing technologies, this solution has the following advantages: This invention solves the difficulty of efficient and stable assembly between pistons, cylinders, and springs in the automotive parts industry. The equipment is divided into two workstations: one is an automatic oiling station, and the other is an automatic assembly station. The assembly station is equipped with a safety light curtain to ensure safe production. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the assembly center.

[0012] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0013] Figure 3 This is a schematic diagram of the assembly center structure.

[0014] Figure 4 This is a schematic diagram of the assembly center structure.

[0015] Figure 5 This is a schematic diagram of the assembly center structure.

[0016] Figure 6 This is a schematic diagram of the compact's structure.

[0017] The technical names of the reference numerals in the figure are as follows: 1—oiling unit, 2—assembly unit, 3—workbench, 4—first gear, 5—second gear, 6—ring-shaped mounting bracket, 7—through hole, 8—oil spraying mechanism, 9—frame, 10—connection and installation unit, 11—lifting unit, 12—positioning base, 13—press plate, 14—pressing block, 15—first hole, 16—first slot, 17—clamping mechanism, 18—oiling base plate, 19—drive motor, 20—bracket, 21—first linear module, 22—upper plate, 23—lower plate, 24—support column, 26—guide shaft, 27—first motor, 28—bite piece, 29—worm gear jack, 30—lifting rod, 31—mounting seat, 32—slide rail, 33—positioning cylinder, 34—longitudinal cylinder, 35—positioning block, 36—bayonet, 37—housing. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Example 1 An assembly center for a brake chamber includes an oiling unit 1 and an assembly unit 2; it also includes a worktable 3 on which the oiling unit 1 and the assembly unit 2 are mounted. The oiling unit 1 includes a first gear 4 and a second gear 5. The first gear 4 drives the second gear 5 to rotate. A ring-shaped mounting bracket 6 is installed on the end face of the first gear 4. The middle area of ​​the first gear 4 is a through hole 7. The worktable 3 is provided with an opening corresponding to the through hole 7. The through hole 7 extends to the bottom of the worktable 3. An oil spraying mechanism 8 is provided below the worktable 3. The oil spray nozzle of the oil spraying mechanism 8 can extend from the through hole 7 to the inside of the ring-shaped mounting bracket 6.

[0020] In this design, the first gear 4 and the second gear 5 drive each other to form a rotating body. This rotating body itself drives the housing 37 to rotate, allowing for oil application in both the circumferential and radial directions. Furthermore, its mounting bracket design allows it to adapt to different product oiling needs, making it highly adaptable.

[0021] The assembly unit 2 includes a liftable frame 9. A connecting installation unit 10 is provided on the upper part of the frame 9, and a lifting unit 11 is provided on the lower end of the frame 9. When the lifting unit 11 is working, it pushes the housing 37 upward so that the piston and the housing 37 stay at a set position.

[0022] The frame 9 is equipped with a positioning base 12, which is located below the connection and installation unit 10. The connection and installation unit 10 includes a pressure plate 13, and a pressure block 14 is detachably installed on the lower side of the pressure plate 13. The pressure block 14 has a first hole 15 in the middle and first slots 16 on both sides of the pressure block 14. The first slots 16 and the first hole 15 are connected. The purpose of the connection and installation unit 10 is to install the connecting bolt after the piston is locked in the set position, thereby stabilizing the initial position set by the piston and the housing 37.

[0023] The first hole 15 includes a central circular hole portion with strip-shaped holes on both sides; it also includes a clamping mechanism 17, the clamping end of which extends from the strip-shaped holes to the lower side of the pressure plate 13. The purpose of this hole structure is to match the piston structure, ensuring that the piston remains vertical and coaxial with the housing 37 during screwing and pushing, thus avoiding scrap and improving the pass rate.

[0024] The oiling unit 1 further includes an oiling substrate 18, which is fixedly mounted on the workbench 3. The oiling substrate 18 has a mounting hole in the middle. The second gear 5 is mounted on the oiling substrate 18 through a bearing and is coaxially arranged with the mounting hole. Multiple threaded holes are opened on the end face of the second gear 5. A ring-shaped mounting bracket 6 is mounted on the end face of the second gear 5. The ring-shaped mounting bracket 6 includes a spray positioning ring, and the inner side of the spray positioning ring is a positioning surface.

[0025] To achieve circular motion, the system also includes a drive motor 19, which is mounted on and below the oiling substrate 18. The drive motor 19 drives the first gear 4 to rotate, and the first gear 4 meshes with the second gear 5 to drive the second gear 5 to rotate. The transmission ratio of the first gear 4 and the second gear 5 is 1:4, with the first gear 4 being smaller than the second gear 5. The system also includes a bracket 20, which is fixedly mounted below the oiling substrate 18. A first linear module 21 is mounted on the bracket 9, and the oil spraying mechanism 8 is mounted on the first linear module 21 and can move up and down under the drive of the first linear module 21. The linear module can drive the oil nozzle to move up and down, cooperating with the circularly moving base to achieve uniform oil spraying on the inner wall of the housing 37, thus realizing automatic and uniform oil spraying.

[0026] The frame 9 includes an upper plate 22 and a lower plate 23, as well as support columns 24. The upper plate 22 is fixedly mounted on the support columns 24, and the four corners of the lower plate 23 are mounted on the support columns 24 via linear bearings. A connecting and mounting unit 10 is mounted on the upper plate 22. The connecting and mounting unit 10 includes a pressure plate 13, the four corners of which are mounted on the upper plate 22 via guide shafts 26. It also includes a top plate, on which a pressure cylinder is mounted. The pressure cylinder can push the pressure plate 13 to slide along the guide shafts 26. A first motor 27 is mounted on the pressure plate 13, and a screwdriver bit 28 is connected to the lower end of the first motor 27. The screwdriver bit 28 extends downward from the first hole 15. The double-plate design integrates the overall assembly space and allows for space adjustment according to specific needs.

[0027] The lifting unit 11 includes a worm gear jack 29 and a lifting rod 30. The worm gear jack 29 drives the lifting rod 30 to move up and down, and the upper end of the lifting rod 30 is fixedly connected to the lower plate 23. The worm gear jack 29 in this design not only allows for precise control but also achieves self-locking to ensure the stability of the support.

[0028] The lower plate 23 has a mounting base 31 in the middle area, which is mounted on a slide rail 32. A longitudinal cylinder 34 is located on the left side of the mounting base, and the piston rod end of the longitudinal cylinder 34 is fixedly connected to the mounting base 31 by a fixing block. The slide rail 32 is also longitudinally arranged. A positioning cylinder 33 is also included, located on the other side of the longitudinal cylinder 34. The positioning cylinder 33 and the longitudinal cylinder 34 are distributed on both sides of the mounting base 31. A bayonet 36 is provided in the middle of the mounting base 31, and a positioning block 35 is provided on the positioning cylinder 33. Both the bayonet 36 and the positioning block 35 are wedge-shaped. The slide rail 32 structure design ensures accurate product positioning and facilitates product ejection after assembly, making loading and unloading easier.

[0029] Example 2 A method for assembling a brake chamber, using the assembly center described in Example 1, wherein the brake chamber includes a housing 37, a spring, and a piston, the piston being installed inside the housing 37, the piston including a body portion and a sleeve portion extending from one side of the body, the sleeve portion having a channel hole in the middle, the spring being located between the body portion and the bottom of the housing 37, and the bottom of the housing 37 having a threaded hole, the method comprising the following steps: The first step is to assemble the housing 37 onto the circular mounting bracket 6; The second step is to start the linear module and drive motor 19. The linear module drives the oil spraying mechanism 8 to move up and down. At the same time, the drive motor 19 drives the first gear 4 and the second gear 5 to rotate. The ring-shaped mounting bracket 6 rotates under the drive of the second gear 5. The spraying of the inner wall of the housing 37 is completed. The spraying range covers the entire inner wall of the housing 37. In the third step, the positioning cylinder 33 in assembly unit 2 disengages from the mounting seat 31, the longitudinal cylinder 34 pushes out the mounting seat 31, and the lubricated housing 37 is manually installed on the mounting seat 31. Then, the spring and piston are placed in the housing 37 in sequence. After completion, the longitudinal cylinder 34 returns to its original position and brings the mounting seat 31 back to the bottom of the press unit. The fourth step is to position the mounting base 31 by engaging the positioning cylinder 33 into the bayonet 36. Fifth step, the lifting unit 11 pushes the lower plate 23 to rise, causing the housing 37 to move upward so that the piston is in the set position inside the housing 37; Fifth step, clamping mechanism 17 operates to clamp the sleeve part at the tail of the piston. The sixth step is that the lifting unit 11 pushes the housing 37 upward and pushes the housing 37 and the piston to the set position; In the seventh step, the press cylinder pushes the press plate 13 downward, and the first motor 27 drives the bit part 28 to rotate to install the bolt on the piston and the housing 37; wherein the bit part 28 is inserted into the channel hole to complete the installation and positioning.

[0030] Example 3 The difference from Example 1 is that the end of the bit 28 is magnetic and can be magnetically attracted.

Claims

1. An assembly center for brake chambers, characterized in that: The oiling unit and the assembling unit are installed on the workbench; The oiling unit comprises a first gear and a second gear, the first gear drives the second gear to rotate, an end surface of the first gear is provided with a ring-shaped mounting bracket, a middle region of the first gear is a through hole, the workbench is provided with an opening corresponding to the through hole, and the through hole extends to the lower side of the workbench; the lower side of the workbench is provided with an oil injection mechanism, and an oil injection nozzle of the oil injection mechanism can extend from the through hole to the inner side of the ring-shaped mounting bracket; The assembling unit comprises a liftable frame body, the upper part of the frame body is provided with a connecting and mounting unit, the lower end of the frame body is provided with a lifting unit, and the frame body is provided with a positioning base, which is located below the connecting and mounting unit; the connecting and mounting unit comprises a press-fitting plate, a pressing block is detachably installed on the lower side of the press-fitting plate, the middle part of the pressing block is provided with a first hole, and the two sides of the pressing block are provided with first notches in communication with the first hole; The first hole comprises a middle circular hole part, and strip hole parts are arranged on the two sides of the circular hole part; the oiling unit further comprises a clamping mechanism, and the clamping end of the clamping mechanism extends from the strip hole part to the lower side of the press-fitting plate.

2. An assembly center for brake chambers as claimed in claim 1, characterized in that: The oiling unit further comprises an oiling base plate, which is fixedly installed on the workbench, the middle part of the oiling base plate is provided with a mounting hole, the second gear is coaxially arranged on the oiling base plate through a bearing, a plurality of threaded holes are formed in the end surface of the second gear, and the ring-shaped mounting bracket is installed on the end surface of the second gear; the ring-shaped mounting bracket comprises a spraying positioning ring, and the inner ring side surface of the spraying positioning ring is a positioning surface.

3. An assembly center for brake chambers as claimed in claim 2, characterized in that: The oiling unit further comprises a driving motor, which is installed on the oiling base plate and located below the oiling base plate, the driving motor is connected to drive the first gear to rotate, the first gear is engaged with the second gear to drive the second gear to rotate, the transmission ratio of the first gear and the second gear is 1:4, the first gear is smaller than the second gear; the oiling unit further comprises a support, which is fixedly installed below the oiling base plate, a first linear module is installed on the frame body, and the oil injection mechanism is installed on the first linear module and can move up and down under the driving of the first linear module.

4. An assembly center for brake chambers as claimed in claim 1, characterized in that: The frame body comprises an upper plate and a lower plate, further comprises a support column, the upper plate is fixedly installed on the support column, and the four corners of the lower plate are installed on the support column through linear bearings; the connecting and mounting unit is installed on the upper plate, the connecting and mounting unit comprises a press-fitting plate, the four corners of the press-fitting plate are installed on the upper plate through guide shafts, further comprises a top plate, a press-fitting cylinder is installed on the top plate, the press-fitting cylinder can drive the press-fitting plate to slide along the guide shafts; a first motor is installed on the press-fitting plate, and a bit piece is connected to the lower end of the first motor, the bit piece extends downward from the first hole.

5. An assembly center for brake chambers as claimed in claim 4, characterized in that: The lifting unit comprises a worm lifting machine and a lifting rod, the worm lifting machine drives the lifting rod to move up and down, and the upper end of the lifting rod is fixedly connected with the lower plate.

6. An assembly center for brake chambers as claimed in claim 4, characterized in that: The middle region of the lower plate is provided with a mounting seat, the mounting seat is mounted on the slide rail, the left side of the mounting is provided with a longitudinal cylinder, the piston rod end of the longitudinal cylinder is fixedly connected with the mounting seat through a fixing block, and the slide rail is also longitudinally arranged; the positioning cylinder is located on the other side of the longitudinal cylinder, the positioning cylinder and the longitudinal cylinder are distributed on the two sides of the mounting seat, the middle part of the mounting seat is provided with a bayonet, and the positioning cylinder is provided with a positioning block, and the bayonet and the positioning block are all wedge-shaped.

7. An assembly method of a brake chamber, using the assembly center of any one of claims 1 to 6, the brake chamber comprising a shell, a spring and a piston, the piston being mounted in the shell, the piston comprising a body portion and a sleeve portion extending from one side of the body portion, a passage hole being formed in the middle of the sleeve portion, the spring being located between the body portion and the bottom of the shell, the bottom of the shell being provided with a threaded hole, comprising the following steps: Step 1: Assemble the shell on the ring-shaped mounting frame; Step 2: Start the linear module and the driving motor, the linear module drives the oil injection mechanism to move up and down, and the driving motor drives the first gear and the second gear to rotate, and the ring-shaped mounting frame rotates under the drive of the second gear; complete the spraying of the inner wall of the shell; The spraying range covers the entire range of the inner wall of the shell; Step 3: The positioning cylinder in the assembly unit is separated from the positioning of the mounting seat, the longitudinal cylinder pushes the mounting seat out, the shell coated with lubricating oil is manually mounted on the mounting seat, and then the spring and the piston are sequentially placed in the shell; after completion, the longitudinal cylinder returns to position the mounting seat to the front of the press-fitting unit; Step 4: The positioning cylinder is clamped into the bayonet to position the mounting seat; Step 5: The lifting unit pushes the lower plate upwards to drive the shell to move upwards so that the piston is at a set position in the shell; Step 5: The clamping mechanism works to clamp the sleeve portion at the tail of the piston; Step 6: The lifting unit pushes the shell upwards and pushes the shell and the piston to a set position; Step 7: The press-fitting cylinder pushes the press-fitting plate downwards, the first motor drives the batch head to rotate to install the bolt on the piston and the shell; wherein the batch head is inserted into the passage hole, and the installation and positioning are completed.

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