ADB ball wheel assembly automatic assembling device and working method

Abstract

The application discloses an ADB ball wheel assembly automatic assembling device and a working method, which comprises the following steps: a positioning hole is arranged in the middle of a positioning assembly; a center shaft is vertically arranged in the positioning hole; a torsional spring assembly is sleeved on a ball wheel assembly; a cap hole is arranged on the ball wheel assembly; a first grabbing device is used to place the center shaft in the positioning hole; a second grabbing device is used to clamp the torsional spring assembly and the ball wheel assembly and place them on the positioning assembly, and the center shaft passes through the center of the torsional spring assembly and the cap hole of the ball wheel assembly. The application has a compact and simple structure, is convenient to assemble, is stable and reliable in transmission, and is safe and reliable. In addition, an anti-skid plastic gasket is arranged on the clamping jaw to prevent the center shaft from falling off the clamping jaw, and a spring guide pin is used for pre-positioning the cap hole, so that the central axes of the torsional spring assembly and the ball wheel assembly are ensured to be the same.

Description

Technical Field

[0001] The invention belongs to the technical field of brakes and relates to an automatic assembly device and a working method for an ADB ball wheel assembly. Background Art

[0002] Brakes are a key component for automotive safety. Disc brakes are widely used due to their fast response, minimal thermal decay, and excellent water stability. The torsion spring assembly, ball wheel assembly, and center shaft in the brake are crucial components of the entire mechanism. After the torsion spring and ball wheel assemblies are assembled, the center shaft is inserted into the through-hole between the torsion spring and ball wheel assemblies. The radial clearance between the shaft and hole here is only 0.032mm per side. The repeatability of an industrial robot is 0.06mm, and the part fit accuracy is higher than that of a robot. Furthermore, the center shaft is long and has threads on both ends. This gap at the bottom is magnified at the top assembly point, making automated assembly difficult. Using a robot to directly insert the shaft through the hole could result in interference between the center shaft and the ball wheel assembly, causing a collision and shutdown, or the threads on the center shaft could cause the ball wheel assembly to disintegrate. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of difficulty in automatic assembly of a torsion spring assembly, a ball wheel assembly and a central shaft in the prior art, and to provide an ADB ball wheel assembly automatic assembly device and a working method.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An automatic assembly device for an ADB ball wheel assembly, comprising: a pallet positioning device, a central shaft, a torsion spring assembly, a ball wheel assembly and a mechanical grasping device;

[0006] The pallet positioning device includes a chassis; a positioning hole and a positioning assembly are provided on the chassis; the positioning hole is opened in the middle of the positioning assembly; the central axis is vertically placed in the positioning hole; the torsion spring assembly is sleeved on the ball wheel assembly; a cap hole is provided on the ball wheel assembly; the mechanical grasping device includes a first grasping device and a second grasping device; the first grasping device places the central axis in the positioning hole; the second grasping device clamps the torsion spring assembly and the ball wheel assembly and places them on the positioning assembly, and the central axis passes through the center of the torsion spring assembly and the cap hole of the ball wheel assembly.

[0007] A further improvement of the present invention is:

[0008] Furthermore, the positioning assembly includes a first clamping plate, a second clamping plate, a first cylinder and a second cylinder; the first clamping plate and the second clamping plate are arranged opposite to each other, the second clamping plate is externally connected to the first cylinder, and the second clamping plate is externally connected to the second cylinder, the first clamping plate and the second clamping plate are both arranged on the slide rail, the slide rail is arranged on the chassis, and the chassis is arranged on the bottom plate.

[0009] Furthermore, ball bearings are provided on the sides of the spherical wheel assembly, the torsion spring assembly is a hollow cylinder, and a groove is provided inside the torsion spring assembly; the ball bearings of the spherical wheel assembly are stuck in the groove inside the torsion spring assembly.

[0010] Furthermore, the mechanical grasping device also includes a manipulator mounting plate; the first grasping device and the second grasping device are arranged on the manipulator mounting plate.

[0011] Furthermore, the first gripping device includes a fixed block, a three-jaw cylinder, a clamping jaw, a slider, a second mounting block, a detection sensor, a first mounting block, and a center mounting block;

[0012] The clamping jaws are arranged on the slider, and the slider is arranged on the second mounting block; the central mounting block is connected to the three-jaw cylinder; the central mounting block is connected to the three-jaw cylinder; the detection sensor is arranged in the groove between the slider and the second mounting block; the three-jaw cylinder is externally connected to the clamping jaws; the three-jaw cylinder controls the closing and opening of the clamping jaws; the first mounting block is arranged between the fixed block and the central mounting block, and the fixed block is connected to the manipulator mounting plate.

[0013] Furthermore, the detection sensor detects whether an object is approaching and sends information to the three-jaw cylinder to control the closing and opening of the gripper.

[0014] Further, the second gripping device includes a spring guide pin, a mounting plate and a gripping device;

[0015] One end of the spring guide pin is fixed on the mounting plate, the mounting plate is fixed on the manipulator mounting plate, and a support assembly is provided on the manipulator mounting plate; a slide rail is provided on one side of the support assembly; a clamping device is provided on the slide rail; the clamping device clamps the torsion spring assembly and the ball wheel assembly.

[0016] Furthermore, the clamping device includes a first sliding block, a second sliding block, a torsion spring assembly clamp and a ball wheel assembly clamp; the first sliding block and the second sliding block are arranged on the slide rail for sliding left and right; the torsion spring assembly clamp is arranged on the first sliding block and the second sliding block; the ball wheel assembly clamp is located at the bottom of the first sliding block and the second sliding block.

[0017] Furthermore, a non-slip plastic washer is provided on the clamping jaw.

[0018] Furthermore, the first sliding block and the second sliding block are externally connected to a cylinder for sliding; and the torsion spring assembly clamp is externally connected to a cylinder for driving.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention uses a first gripping device to place the central shaft in the positioning hole. A second gripping device clamps the torsion spring assembly and the spherical wheel assembly and places them on the positioning assembly. The central shaft passes through the center of the torsion spring assembly and the cap hole of the spherical wheel assembly. The positioning hole is also located in the center of the positioning assembly. This invention has a compact and simple structure and is easy to assemble. It also provides smooth transmission and safe and reliable braking.

[0021] Furthermore, the present invention provides an anti-slip plastic washer on the clamping jaws to prevent the central shaft from falling off the clamping jaws.

[0022] Furthermore, the present invention pre-positions the cap hole through a spring guide pin to ensure that the central axes of the torsion spring assembly and the ball wheel assembly are the same.

[0023] A working method of an ADB ball wheel assembly automatic assembly device includes: a detection sensor in a first grasping device detects whether there is an object approaching, and if an object approaches, the detection sensor sends information to a three-claw cylinder to control the clamp to open and grasp the central shaft, and vertically place the central shaft in a positioning hole; a torsion spring assembly clamp and a ball wheel assembly clamp in a second grasping device are opened under the drive of a first sliding block and a second sliding block, the torsion spring assembly clamp grasps the torsion spring assembly, and the ball wheel assembly clamp grasps the ball wheel assembly, and the torsion spring assembly clamp places the ball wheel assembly inside the torsion spring assembly through the slide rails of the first sliding block and the second sliding block. During this process, the ball bearing of the ball wheel assembly is stuck in the groove inside the torsion spring assembly; the spring guide pin enters the cap hole of the ball wheel assembly to pre-align the ball wheel assembly; finally, the torsion spring assembly and the ball wheel assembly are placed into the central shaft; during this process, the spring guide pin begins to be compressed after contacting the central shaft, while ensuring the concentricity of the cap hole and the central shaft during the assembly process, and the central shaft passes through the cap hole of the ball wheel assembly to realize automatic assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural schematic diagram of the automatic assembly device of the ADB ball wheel assembly of the present invention;

[0026] Figure 2 is an axonometric view of the clamping mechanism of the present invention;

[0027] Figure 3 It is a structural diagram of the pallet positioning device of the present invention;

[0028] Figure 4It is a schematic diagram of the ball wheel assembly;

[0029] Figure 5 is a schematic diagram of a torsion spring assembly;

[0030] Figure 6 It is a schematic diagram of the central axis;

[0031] Figure 7 It is a schematic diagram of the cap structure;

[0032] Figure 8 is a cross-sectional view of the torsion spring assembly and the ball wheel assembly;

[0033] Figure 9 It is a side view of the torsion spring assembly and the ball wheel assembly.

[0034] Among them, 1-manipulator mounting plate; 4-center mounting block; 6-center axis; 7-first mounting block; 8-three-claw cylinder; 9-second mounting block; 10-detection sensor; 11-slider; 12-grip; 13-first sliding block; 14-torsion spring assembly fixture; 16-ball wheel assembly fixture; 17-spring guide pin; 18-mounting plate; 19-second sliding block; 20-torsion spring assembly; 21-ball wheel assembly; 22-positioning assembly; 23-first splint; 24-second splint; 25-first cylinder; 26-chassis; 29-bottom plate. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0038] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the inventive product is typically placed when in use. These terms are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. 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 internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] The present invention is described in further detail below with reference to the accompanying drawings:

[0042] See also Figure 1 、 Figure 2 and Figure 3 The present invention discloses an automatic assembly device for an ADB ball wheel assembly, comprising: a pallet positioning device, a central shaft 6, a torsion spring assembly 20, a ball wheel assembly 21 and a mechanical grasping device;

[0043] The pallet positioning device includes a chassis 26; a positioning hole and a positioning assembly 22 are provided on the chassis 26; the positioning hole is opened in the middle of the positioning assembly 22; the center shaft 6 is vertically placed in the positioning hole; the torsion spring assembly 20 is sleeved on the ball wheel assembly 21; a cap hole is provided on the ball wheel assembly 21; the mechanical grasping device includes a first grasping device and a second grasping device; the first grasping device places the center shaft 6 in the positioning hole; the second grasping device clamps the torsion spring assembly 20 and the ball wheel assembly 21 and places them on the positioning assembly 22, and the center shaft 6 passes through the center of the torsion spring assembly 20 and the cap hole of the ball wheel assembly 21.

[0044] The positioning assembly 22 includes a first clamping plate 23, a second clamping plate 24, a first cylinder 25 and a second cylinder; the first clamping plate 23 and the second clamping plate 24 are arranged opposite to each other, the second clamping plate 24 is externally connected to the first cylinder 25, and the second clamping plate 24 is externally connected to the second cylinder. The first clamping plate 23 and the second clamping plate 24 are both arranged on a slide rail, the slide rail is arranged on a chassis 26, and the chassis 26 is arranged on a bottom plate 29.

[0045] See also Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 The ball wheel assembly 21 is provided with ball bearings on its side surface. The torsion spring assembly 20 is a hollow cylinder. A groove is provided inside the torsion spring assembly 20 . The ball bearings of the ball wheel assembly 21 are stuck in the groove inside the torsion spring assembly 20 .

[0046] The mechanical grasping device also includes a manipulator mounting plate 1; the first grasping device and the second grasping device are arranged on the manipulator mounting plate 1; the first grasping device includes a fixed block, a three-claw cylinder 8, a clamping jaw 12, a slider 11, a second mounting block 9, a detection sensor 10, a first mounting block 7 and a center mounting block 4; the clamping jaw 12 is arranged on the slider 11, and the slider 11 is arranged on the second mounting block 9; the center mounting block 4 is connected to the three-claw cylinder 8; the center mounting block 4 is connected to the three-claw cylinder 8; the detection sensor 10 is arranged in a groove between the slider 11 and the second mounting block 9; the three-claw cylinder 8 is externally connected to the clamping jaw 12; the three-claw cylinder 8 controls the closing and opening of the clamping jaw 12; the first mounting block 7 is arranged between the fixed block and the center mounting block 4, and the fixed block is connected to the manipulator mounting plate 1.

[0047] The detection sensor 10 detects whether an object is approaching and sends information to the three-claw cylinder 8 to control the closing and opening of the clamping jaws 12.

[0048] The second grasping device includes a spring guide pin 17, a mounting plate 18 and a clamping device; one end of the spring guide pin 17 is fixed on the mounting plate 18, the mounting plate 18 is fixed on the manipulator mounting plate 1, and a support assembly is provided on the manipulator mounting plate 1; a slide rail is provided on one side of the support assembly; the clamping device is provided on the slide rail; the clamping device clamps the torsion spring assembly 20 and the ball wheel assembly 21.

[0049] The clamping device includes a first sliding block 13, a second sliding block 19, a torsion spring assembly clamp 14 and a ball wheel assembly clamp 16; the first sliding block 13 and the second sliding block 19 are arranged on the slide rail for sliding left and right; the torsion spring assembly clamp 14 is arranged on the first sliding block 13 and the second sliding block 19; the ball wheel assembly clamp 16 is located at the bottom of the first sliding block 13 and the second sliding block 19.

[0050] The clamping jaw 12 is provided with an anti-skid plastic washer. The first sliding block 13 and the second sliding block 19 are connected to an external cylinder for sliding; the torsion spring assembly clamp 14 is connected to an external cylinder for driving.

[0051] The working mode of the present invention is:

[0052] The detection sensor 10 in the first gripping device detects whether an object approaches. If so, the detection sensor 10 sends information to the three-claw cylinder 8 to control the gripper 12 to open, grasp the central shaft 6, and vertically place the central shaft 6 in the positioning hole. The torsion spring assembly fixture 14 and the ball wheel assembly fixture 16 in the second gripping device are driven by the first sliding block 13 and the second sliding block 19 to open. The torsion spring assembly fixture 14 grasps the torsion spring assembly 20, and the ball wheel assembly fixture 16 grasps the ball wheel assembly 21. The torsion spring assembly fixture 14 places the ball wheel assembly 21 inside the torsion spring assembly 20 via the slide rails of the first sliding block 13 and the second sliding block 19. During this process, the ball bearing of the ball wheel assembly 21 is stuck in the groove inside the torsion spring assembly 20. The spring guide pin 17 enters the cap hole of the ball wheel assembly 21 to pre-align the ball wheel assembly 21. Finally, the torsion spring assembly 20 and the ball wheel assembly 21 are placed into the central shaft 6. During this process, the spring guide pin 17 begins to be compressed after contacting the central shaft 6, while ensuring the concentricity of the cap hole and the central shaft 6 during the assembly process. The central shaft 6 passes through the cap hole of the ball wheel assembly to achieve automated assembly.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automatic assembly device for ADB ball wheel components, characterized in that: include: A tray positioning device, a central shaft (6), a torsion spring assembly (20), a ball wheel assembly (21) and a mechanical grasping device; The tray positioning device includes a chassis (26); a positioning hole and a positioning assembly (22) are provided on the chassis (26); the positioning hole is opened in the middle of the positioning assembly (22); the central shaft (6) is vertically placed in the positioning hole; the torsion spring assembly (20) is sleeved on the ball wheel assembly (21); the ball wheel assembly (21) is provided with a cap hole; the mechanical grasping device includes a first grasping device and a second grasping device; the first grasping device places the central shaft (6) in the positioning hole; the second grasping device clamps the torsion spring assembly (20) and the ball wheel assembly (21) and places them on the positioning assembly (22), and the central shaft (6) passes through the torsion spring assembly (20 ) and the cap hole of the ball wheel assembly (21); the mechanical grasping device also includes a manipulator mounting plate (1); the first grasping device and the second grasping device are arranged on the manipulator mounting plate (1); the second grasping device includes a spring guide pin (17), a mounting plate (18) and a clamping device; one end of the spring guide pin (17) is fixed on the mounting plate (18), the mounting plate (18) is fixed on the manipulator mounting plate (1), and a support assembly is provided on the manipulator mounting plate (1); a slide rail is provided on one side of the support assembly; the clamping device is arranged on the slide rail; the clamping device clamps the torsion spring assembly (20) and the ball wheel assembly (21).

2. The automatic assembly device for ADB ball wheel assembly according to claim 1, characterized in that: The positioning assembly (22) includes a first clamping plate (23), a second clamping plate (24), a first cylinder (25) and a second cylinder; the first clamping plate (23) and the second clamping plate (24) are arranged opposite to each other, the second clamping plate (24) is externally connected to the first cylinder (25), the second clamping plate (24) is externally connected to the second cylinder, the first clamping plate (23) and the second clamping plate (24) are both arranged on a slide rail, the slide rail is arranged on a chassis (26), and the chassis (26) is arranged on a bottom plate (29).

3. The automatic assembly device for ADB ball wheel assembly according to claim 2, characterized in that: The spherical wheel assembly (21) is provided with a ball bearing on its side surface. The torsion spring assembly (20) is hollow cylindrical. A groove is provided inside the torsion spring assembly (20). The ball bearing of the spherical wheel assembly (21) is clamped on the groove inside the torsion spring assembly (20).

4. The automatic assembly device for ADB ball wheel assembly according to claim 1, characterized in that: The first grasping device comprises a fixed block, a three-claw cylinder (8), a clamping claw (12), a slider (11), a second mounting block (9), a detection sensor (10), a first mounting block (7) and a central mounting block (4); The clamping jaw (12) is arranged on a slider (11), and the slider (11) is arranged on a second mounting block (9); the central mounting block (4) is connected to a three-claw cylinder (8); the central mounting block (4) is connected to the three-claw cylinder (8); the detection sensor (10) is arranged in a groove between the slider (11) and the second mounting block (9); the three-claw cylinder (8) is externally connected to the clamping jaw (12); the three-claw cylinder (8) controls the closing and opening of the clamping jaw (12); the first mounting block (7) is arranged between a fixed block and the central mounting block (4), and the fixed block is connected to a manipulator mounting plate (1).

5. The automatic assembly device for ADB ball wheel assembly according to claim 4, characterized in that: The detection sensor (10) detects whether an object is approaching and sends information to the three-claw cylinder (8) to control the closing and opening of the clamping claws (12).

6. The automatic assembly device for ADB ball wheel assembly according to claim 5, characterized in that: The clamping device comprises a first sliding block (13), a second sliding block (19), a torsion spring assembly clamp (14) and a ball wheel assembly clamp (16); the first sliding block (13) and the second sliding block (19) are arranged on a slide rail for sliding left and right; the torsion spring assembly clamp (14) is arranged on the first sliding block (13) and the second sliding block (19); and the ball wheel assembly clamp (16) is located at the bottom of the first sliding block (13) and the second sliding block (19).

7. The automatic assembly device for ADB ball wheel assembly according to claim 6, characterized in that: The clamping jaw (12) is provided with an anti-skid plastic washer; the first sliding block (13) and the second sliding block (19) are externally connected to a cylinder for sliding; and the torsion spring assembly clamp (14) is externally connected to a cylinder for driving.

8. A working method of the automatic assembly device of the ADB ball wheel assembly according to claim 7, characterized in that: include: The detection sensor (10) in the first grasping device detects whether an object approaches. If an object approaches, the detection sensor (10) sends information to the three-claw cylinder (8) to control the clamp (12) to open and grasp the central shaft (6), and vertically place the central shaft (6) in the positioning hole; the torsion spring assembly clamp (14) and the ball wheel assembly clamp (16) in the second grasping device are opened under the drive of the first sliding block (13) and the second sliding block (19), the torsion spring assembly clamp (14) grasps the torsion spring assembly (20), the ball wheel assembly clamp (16) grasps the ball wheel assembly (21), and the torsion spring assembly clamp (14) grasps the torsion spring assembly (20) and the ball wheel assembly clamp (16) grasps the ball wheel assembly (21). The slide rails of the two sliding blocks (19) place the ball wheel assembly (21) inside the torsion spring assembly (20). During this process, the ball bearing of the ball wheel assembly (21) is stuck on the groove inside the torsion spring assembly (20); the spring guide pin (17) enters the cap hole of the ball wheel assembly (21) to pre-align the ball wheel assembly (21); finally, the torsion spring assembly (20) and the ball wheel assembly (21) are placed into the central shaft (6); during this process, the spring guide pin (17) contacts the central shaft (6) and begins to be compressed, while ensuring the concentricity of the cap hole and the central shaft (6) during the assembly process. The central shaft (6) passes through the cap hole of the ball wheel assembly to achieve automatic assembly.

Images