Automatic assembly method and device for torsion spring assembly of ADB adjustment mechanism

Abstract

The present invention discloses an automatic assembly method and device for a torsion spring assembly of an ADB adjustment mechanism, which belongs to the technical field of torsion spring assembly. The device includes an assembly table base, a six-axis robot, a vibration disk distributing mechanism, and a torsion spring assembly assembly mechanism. The state of the parts is adjusted by the vibration disk distributing mechanism to ensure that the parts reach the correct arrangement posture. The six-axis robot then clamps the required parts from the vibration disk distributing mechanism and assembles them on the torsion spring assembly assembly mechanism. A process is adopted in which the front torque sleeve assembly and the rear torque sleeve assembly are pre-assembled separately and then assembled. The torque sleeve clamp grabs the rear torque sleeve and places it into the expansion sleeve, then grabs the torsion spring and places it into the expansion sleeve. The expansion sleeve expands to stretch the torsion spring, and the pressure head is pressed down to press the torsion spring into the rear torque sleeve. It can shorten the output time of a single product, improve assembly accuracy while increasing production capacity, so as to ensure product quality and reduce labor costs.

Description

Technical Field

[0001] The invention belongs to the technical field of torsion spring assembly, and relates to an automatic assembly method and device for a torsion spring component of an ADB adjustment mechanism. Background Art

[0002] With the improvement of road traffic conditions, the development of high-grade highways, and the continuous improvement of vehicle performance, pneumatic disc brakes, due to their light weight, high performance, high durability, low wear parts, and long service life, are now commonly used as key safety components in modern high-end commercial vehicles. The core adjustment mechanism of the disc brake automatically adjusts the brake clearance, and the torsion spring assembly is a key component of the adjustment mechanism, which places high demands on assembly quality.

[0003] However, in the current automatic assembly process, the robot has very high requirements for the position and placement of parts when grasping the parts. The torsion spring assembly has many special-shaped parts, and the consistency of the incoming materials is difficult to ensure. In addition, due to the complex matching relationship between the parts of the torsion spring assembly and high assembly precision requirements, the existing assembly process mostly installs parts one by one in sequence, which results in a slow assembly cycle and difficult to ensure assembly precision. Summary of the Invention

[0004] The purpose of the present invention is to solve the technical problems in the prior art that the parts of the torsion spring assembly of the adjustment mechanism are complex in shape, the matching relationship between the parts is complex, and the consistency of the incoming materials is difficult to ensure, resulting in slow assembly cycle and difficulty in ensuring assembly accuracy. A method and device for automatically assembling the torsion spring assembly of the ADB adjustment mechanism is provided.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides an automatic assembly device for a torsion spring assembly of an ADB adjustment mechanism, comprising an assembly table base; a six-axis robot, a vibration plate distributing mechanism and a torsion spring assembly assembling mechanism are installed on the assembly table base; the six-axis robot can clamp the classified parts from the vibration plate distributing mechanism and assemble them on the torsion spring assembly assembling mechanism.

[0007] A further improvement of the above device is:

[0008] The assembly platform base includes a conveyor belt arranged on a bracket; sensors, positioning mechanisms, blocking limiters and assembly line trays are respectively arranged on both sides of the conveyor belt to achieve accurate positioning of parts transportation.

[0009] A pallet lifting mechanism cooperating with the pallet of the sub-packaging line is also provided on one side of the conveyor belt.

[0010] The six-axis robot comprises a base; a robot body is connected to the base, and a part clamping structure is movably connected to the upper end of the robot body.

[0011] The part clamping structure includes a combined flip jaw, a spring jaw, a torque sleeve jaw and a bearing jaw; one end of the combined flip jaw, one end of the spring jaw, one end of the torque sleeve jaw and one end of the bearing jaw are movably connected.

[0012] The vibrating plate distributing mechanism includes a vibrating plate motor cabinet; a torque sleeve silo and a torsion spring silo are provided on the upper end of the vibrating plate motor cabinet; the torque sleeve silo and the torsion spring silo are each connected to a driving motor, and the upper ends of the torque sleeve silo and the torsion spring silo are both connected to a discharge port through a spiral track; the torque sleeve silo is also connected to a torque sleeve material channel; the torsion spring silo is also connected to a torsion spring material channel.

[0013] The vibrating plate material distributing mechanism also includes a sound insulation cover, which is arranged outside the dynamic plate motor cabinet, the material discharge port, the torque sleeve material bin, the torque sleeve material channel, the torsion spring material channel and the torsion spring material bin. One side of the sound insulation cover is open for the torque sleeve material channel and the torsion spring material channel to pass through.

[0014] The torsion spring assembly assembly mechanism includes a base; a slide track is provided on the inner top wall of the base, and a slide rail is provided on the upper surface of the base corresponding to the slide track; a slidable expansion sleeve is installed on the slide rail, and a tensioning mechanism and a guide core shaft are placed at one end of the slide rail; the tensioning mechanism contains a clamping tooth that is adapted to the inner diameter of the front torque sleeve; a first cylinder is provided above the tensioning mechanism, and the lower end of the first cylinder is connected to the pressure head; a second cylinder is also provided on the upper surface of the base, and the lower end of the second cylinder is connected to the rotating pressure head; the first cylinder and the second cylinder are respectively connected to the cylinder bracket.

[0015] The rotary pressure head is a floating pressure head; a boss is provided at the bottom of the rotary pressure head to match the groove of the rear torque sleeve.

[0016] In a second aspect, the present invention provides a method for automatically assembling a torsion spring assembly of an ADB adjustment mechanism using the above-mentioned device, comprising the following steps:

[0017] When the sub-packaging line pallet flows into the work station along the conveyor belt, the sub-packaging line pallet is sensed by the sensor, causing the blocking limiter to rise to block the sub-packaging line pallet; the sub-packaging line pallet is lifted by the pallet lifting mechanism, and the six-axis robot starts to operate;

[0018] Use the spring clamp to clamp the spring retaining ring from the vibrating plate distributing mechanism and place it on the tensioning mechanism of the torsion spring assembly assembly mechanism, then clamp the axial thrust ball bearing and place it on the spring retaining ring; use the torque sleeve clamp to clamp the front torque sleeve from the torque sleeve material channel and place it on the spring retaining ring, then use the assembly flip clamp to put the guide core shaft on the front torque sleeve; use the torque sleeve clamp to clamp the torsion spring and put it on the guide core shaft, and use the first cylinder to drive the pressure head to press down so that the torsion spring is pressed into the front torque sleeve, and then use the assembly flip clamp to remove the guide core shaft and put it back to its original position; use the torque sleeve clamp to clamp the rear torque sleeve from the torque sleeve material channel and place it on the expansion sleeve, and clamp the second torsion spring from the torsion spring material channel and put it into the expansion sleeve;

[0019] The expansion sleeve is controlled to move with the slide rail to the bottom of the pressure head, the expansion sleeve expands, and the pressure head is controlled to press down, so that the second torsion spring is pressed into the rear torque sleeve. After the press-fitting is completed, the expansion sleeve is controlled to tighten and move back to its original position with the slide rail; the press-fitted rear torque sleeve assembly is lifted off the expansion sleeve by assembling the flipping jaws, flipped over and placed on the front torque sleeve assembly;

[0020] Open the teeth of the tensioning mechanism, fix the front torque sleeve on the tooling, control the second cylinder to drive the rotary pressure head to rotate and press down the rear torque sleeve, so that the rear torque sleeve is combined with the front torque sleeve; after completion, lift the rotary pressure head, grab the pressed torsion spring assembly through the assembly flip clamp and flip it over, and place it on the sub-assembly line pallet; then release it by controlling the blocking limiter, so that the sub-assembly line pallet flows into the next workstation.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention discloses an automated assembly method and device for an ADB adjustment mechanism torsion spring assembly. A vibrating plate dispensing mechanism adjusts the component state to ensure the correct arrangement of the components. A six-axis robot then picks the required components from the vibrating plate dispensing mechanism and assembles them on the torsion spring assembly assembly mechanism. This method shortens the production time of individual products, increases production capacity, improves assembly accuracy, ensures product quality, and reduces labor costs.

[0023] Furthermore, the vibration plate dividing mechanism of the present invention is respectively provided with a material channel and a discharge port based on a torque sleeve and a torsion spring, and a different loading mode is designed for each part; the parts in the hopper rise along the spiral track during vibration and are transported to the part state-guaranteed material channel, and the material channel is designed with a multi-layer interception device. Parts that meet the required state pass through the material channel to reach the discharge port, and parts that do not meet the state requirements are returned to the vibration mechanism to continue adjusting the state; it breaks through the problem that the traditional loading mechanism cannot be used for various special-shaped parts in the manual work station due to complex structures, and the loading process is unstable and has a high failure rate. It effectively solves the problem that the work station cannot be automated due to the inability to automatically load individual parts, thereby improving the automation rate of the entire production line.

[0024] Furthermore, the latching teeth within the tensioning mechanism of the torsion spring assembly assembly of the present invention open to both sides and engage within the semicircular groove inside the front torque sleeve. Furthermore, the present invention utilizes a dual-stroke cylinder, which provides twice the clamping force of a single-stroke cylinder. Under the action of this clamping force, the latching teeth press against the semicircular groove, preventing the front torque sleeve from rotating, thus preventing it from rotating with the pressure head due to external forces when rotating with the rear torque sleeve.

[0025] Furthermore, the present invention employs a process in which the front and rear torque sleeve assemblies are preassembled separately and then assembled together. The torque sleeve gripper grasps the rear torque sleeve and places it into the expansion sleeve, which then grasps the torsion spring and places it into the expansion sleeve. The expansion sleeve expands, stretching the torsion spring. The pressure head then presses down, pressing the torsion spring into the rear torque sleeve, achieving an interference fit between the rear torque sleeve and the torsion spring. This avoids the problem of traditional processes where the assembly parts are assembled one by one in sequence, which can cause the rear torque sleeve and torsion spring to be improperly assembled and easily spring apart when subjected to external forces.

[0026] Furthermore, the present invention's rotary ram is a floating ram with a boss on its bottom that mates with the groove of the rear torque sleeve. During press-fitting, the ram descends and contacts the rear torque sleeve, then rotates, automatically aligns, and presses down until the assembly is press-fitted. This prevents damage to the components and effectively improves press-fitting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 Schematic diagram of the structure of the six-axis robot of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the torsion spring assembly assembly mechanism of the present invention;

[0031] Figure 4 This is an external schematic diagram of the vibrating plate distributing mechanism of the present invention;

[0032] Figure 5 This is a structural diagram of the vibrating plate material distribution mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the assembly platform base of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the tensioning mechanism of the present invention;

[0035] Figure 8 It is a structural diagram of the front torque sleeve.

[0036] Among them: 1-base; 2-robot body; 3-assembled flip clamp; 4-spring clamp; 5-torque sleeve clamp; 6-bearing clamp; 7-expansion sleeve; 8-guide mandrel; 9-pressing head; 10-first cylinder; 11-cylinder bracket; 12-second cylinder; 13-rotating press head; 14-base; 15-soundproof cover; 16-vibration plate motor cabinet; 17-discharging port; 18-torque sleeve silo; 19-torque sleeve silo Track; 20-torsion spring material track; 21-torsion spring material bin; 22-drive motor; 23-slide track; 24-slide rail; 25-conveyor belt; 26-sensor; 27-tray lifting mechanism; 28-positioning mechanism; 29-blocking limiter; 30-assembly line pallet; 31-bracket; 32-tensioning mechanism; 33-assembly table base; 34-six-axis robot; 35-vibration plate distributing mechanism; 36-torsion spring assembly assembly mechanism. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] The present invention is described in further detail below with reference to the accompanying drawings:

[0044] See also Figure 1 An embodiment of the present invention provides an automated assembly device for torsion spring assemblies of an ADB adjustment mechanism, comprising an assembly platform base 33, mounted on which are a six-axis robot 34, a vibrating plate dispensing mechanism 35, and a torsion spring assembly assembly mechanism 36. The six-axis robot 34 is capable of picking up sorted parts from the vibrating plate dispensing mechanism 35 and assembling them on the torsion spring assembly assembly mechanism 36. The vibrating plate dispensing mechanism adjusts the part state to ensure the correct arrangement, shortening the production time of individual products, improving assembly accuracy while increasing production capacity, thereby ensuring product quality and reducing labor costs.

[0045] See also Figure 6 The present invention provides another feasible embodiment. The assembly platform base 33 includes a conveyor belt 25 mounted on a bracket 31. Sensors 26, positioning mechanisms 28, stoppers 29, and sub-assembly line trays 30 are also located on both sides of the conveyor belt 25 to ensure accurate positioning of parts during transport. A tray lifting mechanism 27 is also located on one side of the conveyor belt 25 to cooperate with the sub-assembly line tray 30.

[0046] See also Figure 2 The present invention provides another feasible embodiment. The six-axis robot 34 includes a base 1; a robot body 2 is connected to the base 1, and a part clamping structure is movably connected to the upper end of the robot body 2. The part clamping structure includes a combined flip jaw 3, a spring jaw 4, a torque sleeve jaw 5, and a bearing jaw 6. One end of the combined flip jaw 3, one end of the spring jaw 4, one end of the torque sleeve jaw 5, and one end of the bearing jaw 6 are movably connected.

[0047] See also Figure 5 The present invention provides another feasible implementation manner, in which the vibration disk distributing mechanism 35 includes a vibration disk motor cabinet 16; a torque sleeve hopper 18 and a torsion spring hopper 21 are provided on the upper end of the dynamic disk motor cabinet 16; the torque sleeve hopper 18 and the torsion spring hopper 21 are each connected to a driving motor 22, and the upper ends of the torque sleeve hopper 18 and the torsion spring hopper 21 are connected to a discharge port 17 through a spiral track; the parts in the hopper rise along the spiral track during vibration and are transported to the part state assurance channel, and the channel is designed with a multi-layer interception device. Parts that meet the required state pass through the channel to reach the discharge port, and parts that do not meet the state requirements are returned to the vibration mechanism to continue adjusting the state; the torque sleeve hopper 18 is also connected to the torque sleeve channel 19; the torsion spring hopper 21 is also connected to the torsion spring channel 20. It breaks through the problem that the traditional loading mechanism cannot be used for the complex structures of various special-shaped parts in manual workstations, and the loading process is unstable and has a high failure rate. It effectively solves the problem that the workstation cannot be automated because some parts cannot be loaded automatically, thereby improving the automation rate of the entire production line.

[0048] See also Figure 4 In some embodiments, the vibration plate distributing mechanism 35 further includes a soundproof cover 15, which is arranged outside the dynamic plate motor cabinet 16, the discharge port 17, the torque sleeve silo 18, the torque sleeve material channel 19, the torsion spring material channel 20 and the torsion spring silo 21. One side of the soundproof cover 15 is open for the torque sleeve material channel 19 and the torsion spring material channel 20 to pass through.

[0049] See also Figure 3 and Figure 7The present invention provides another feasible embodiment, in which the torsion spring assembly assembly mechanism 36 includes a base 14; a slide track 23 is provided on the inner top wall of the base 14, and a slide rail 24 is provided on the upper surface of the base 14 corresponding to the slide track 23; a slidable expansion sleeve 7 is mounted on the slide rail 24, and a tensioning mechanism 32 and a guide core shaft 8 are placed at one end of the slide rail 24; the tensioning mechanism 32 contains a latching tooth adapted to the inner diameter of the front torque sleeve; a first cylinder 10 is provided above the tensioning mechanism 32, and the lower end of the first cylinder 10 is connected to the pressure head 9; a second cylinder 12 is also provided on the upper surface of the base 14, and the lower end of the second cylinder 12 is connected to the rotating pressure head 13; the first cylinder 10 and the second cylinder 12 are each connected to a cylinder bracket 11. The clamping force of the double-stroke cylinder is twice that of the single-stroke cylinder. Under the action of the clamping force, the latching tooth presses against the semicircular groove, preventing the front torque sleeve from rotating, thus preventing it from being easily affected by external forces and rotating with the pressure head when rotating and assembling with the rear torque sleeve. The rotating ram 13 is a floating ram; its bottom is equipped with a boss that mates with the groove of the rear torque sleeve. During press-fitting, the ram descends, contacts the rear torque sleeve, and then rotates, automatically aligning and pressing down until the assembly is press-fitted. This prevents damage to the components and effectively improves press-fitting quality.

[0050] See also Figure 7 and Figure 8 Based on the above device, another embodiment of the present invention discloses an automatic assembly method for a torsion spring assembly of an ADB adjustment mechanism, comprising the following steps:

[0051] When the sub-packaging line pallet 30 flows into the working position along the conveyor belt 25, the sub-packaging line pallet 30 is sensed by the sensor 26, causing the blocking limiter 29 to rise and block the sub-packaging line pallet 30; the sub-packaging line pallet 30 is lifted by the pallet lifting mechanism 27, and the six-axis robot 34 starts to operate;

[0052] Use the spring clamp 4 to clamp the spring retaining ring from the vibrating plate distributing mechanism 35 and place it on the tensioning mechanism 32 of the torsion spring assembly assembly mechanism 36, and then clamp the axial thrust ball bearing and place it on the spring retaining ring; use the torque sleeve clamp 5 to clamp the front torque sleeve from the torque sleeve material channel 19 and place it on the spring retaining ring, and then use the assembly flip clamp 3 to put the guide core shaft 8 on the front torque sleeve; use the torque sleeve clamp 5 to clamp the torsion spring and put it on the guide core shaft 8, and use the first cylinder 10 to drive the pressure head 9 to press down so that the torsion spring is pressed into the front torque sleeve, and then use the assembly flip clamp 3 to remove the guide core shaft 8 and put it back to its original position; use the torque sleeve clamp 5 to clamp the rear torque sleeve from the torque sleeve material channel 19 and place it on the expansion sleeve 7, and then clamp the second torsion spring from the torsion spring material channel 20 and put it into the expansion sleeve 7;

[0053] The expansion sleeve 7 is controlled to move with the slide rail 24 to the bottom of the pressure head 9, and the expansion sleeve 7 expands. The pressure head 9 is controlled to press down, so that the second torsion spring is pressed into the rear torque sleeve. After the press-fitting is completed, the expansion sleeve 7 is controlled to be tightened and moved back to its original position with the slide rail 24. The press-fitted rear torque sleeve assembly is lifted off the expansion sleeve 7 by assembling the flipping jaw 3, and then flipped and placed on the front torque sleeve assembly.

[0054] Open the teeth of the tensioning mechanism 32, fix the front torque sleeve on the tooling, control the second cylinder 12 to drive the rotary pressure head 13 to rotate and press down the rear torque sleeve, so that the rear torque sleeve is combined with the front torque sleeve; after completion, lift the rotary pressure head 13, grab the pressed torsion spring assembly through the assembly flip clamp 3 and flip it over, and place it on the sub-packaging line tray 30; then control the blocking limiter 29 to release it, so that the sub-packaging line tray 30 flows into the next workstation.

[0055] The working process of the device of the present invention is as follows:

[0056] The sub-packaging line pallet 30 flows into the working position along the conveyor belt 25. After the sensor 26 senses the sub-packaging line pallet 30, the blocking limiter 29 is lifted to block the sub-packaging line pallet 30. The pallet lifting mechanism 27 lifts the sub-packaging line pallet 30, and the six-axis robot 34 starts to operate; the spring clamp 4 first clamps the spring retaining ring from the vibration plate distributing mechanism 35 and places it on the tensioning mechanism 32 of the torsion spring assembly assembly mechanism 36, and then clamps the axial thrust ball bearing and places it on the spring retaining ring. The torque sleeve clamp 5 clamps the front torque sleeve from the torque sleeve material channel 19 and places it on the spring retaining ring. The assembly flip clamp 3 then clamps the guide core shaft 8 and puts it on the front torque sleeve. The torque sleeve clamp 5 clamps the torsion spring and puts it on the guide core shaft 8. The first cylinder 10 drives the pressure head 9 to press down, pressing the torsion spring into the front torque sleeve. The assembly flip clamp 3 then removes the guide core shaft 8 and puts it back in place. The torque sleeve clamp 5 clamps the rear torque sleeve from the torque sleeve channel 19 and places it on the expansion sleeve 7, and then clamps the torsion spring from the torsion spring channel 20 and places it into the expansion sleeve 7. The expansion sleeve 7 moves to the bottom of the pressure head 9 along the slide rail 24, the expansion sleeve 7 expands, and the pressure head 9 presses down to press the torsion spring into the rear torque sleeve. After the press-fitting is completed, the expansion sleeve 7 is tightened and moves back to its original position along the slide rail 24. The assembly flip clamp 3 grabs the pressed rear torque sleeve assembly, lifts it off the expansion sleeve 7, then flips it over and places it on the front torque sleeve assembly; the teeth of the tensioning mechanism 32 open to fix the front torque sleeve on the tooling, and the second cylinder 12 drives the rotary pressure head 13 to rotate and press down the rear torque sleeve, pressing the two together. After the press-fitting is completed, the rotary pressure head 13 is lifted, and the assembly flip clamp 3 grabs the pressed torsion spring assembly and flips it over, placing it on the corresponding position of the sub-assembly line tray 30. After the above steps are completed, the stopper 29 is released and the sub-assembly line tray 30 flows into the next station. This process of pre-assembling the front torque sleeve assembly and the rear torque sleeve assembly separately and then assembling them together avoids the problem of the traditional process of sequentially assembling the assembly parts one by one, which may cause the rear torque sleeve and torsion spring to be improperly assembled and easily popped open when subjected to external forces.

[0057] 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 a torsion spring assembly of an ADB adjustment mechanism, characterized in that: The assembly platform comprises an assembly platform base (33); a six-axis robot (34), a vibration plate material distribution mechanism (35), and a torsion spring assembly assembly mechanism (36) are installed on the assembly platform base (33); the six-axis robot (34) can pick up the classified parts from the vibration plate material distribution mechanism (35) and assemble them on the torsion spring assembly assembly mechanism (36); The six-axis robot (34) comprises a base (1); a robot body (2) is connected to the base (1); and a part clamping structure is movably connected to the upper end of the robot body (2); The part clamping structure comprises a combined flip clamp (3), a spring clamp (4), a torque sleeve clamp (5) and a bearing clamp (6); one end of the combined flip clamp (3), one end of the spring clamp (4), one end of the torque sleeve clamp (5) and one end of the bearing clamp (6) are movably connected; The vibrating disc material distributing mechanism (35) comprises a vibrating disc motor cabinet (16); a torque sleeve silo (18) and a torsion spring silo (21) are provided at the upper end of the vibrating disc motor cabinet (16); the torque sleeve silo (18) and the torsion spring silo (21) are each connected to a driving motor (22); the upper ends of the torque sleeve silo (18) and the torsion spring silo (21) are both connected to a discharge port (17) via a spiral track; the torque sleeve silo (18) is further connected to a torque sleeve material channel (19); and the torsion spring silo (21) is further connected to a torsion spring material channel (20); The torsion spring assembly assembly mechanism (36) includes a base (14); a slide track (23) is provided on the inner top wall of the base (14); a slide rail (24) is provided on the upper surface of the base (14) corresponding to the slide track (23); a slidable expansion sleeve (7) is installed on the slide rail (24), and a tensioning mechanism (32) and a guide core shaft (8) are placed on one end of the slide rail (24); the tensioning mechanism (32) contains a tooth that matches the inner diameter of the front torque sleeve; a first cylinder (10) is provided above the tensioning mechanism (32), and the lower end of the first cylinder (10) is connected to the pressure head (9); a second cylinder (12) is also provided on the upper surface of the base (14), and the lower end of the second cylinder (12) is connected to the rotating pressure head (13); the first cylinder (10) and the second cylinder (12) are respectively connected to the cylinder bracket (11).

2. The automatic assembly device for the torsion spring assembly of the ADB adjustment mechanism according to claim 1, characterized in that: The assembly platform base (33) includes a conveyor belt (25) arranged on a bracket (31); sensors (26), positioning mechanisms (28), blocking limiters (29) and assembly line trays (30) are respectively arranged on both sides of the conveyor belt (25) for achieving accurate positioning of parts transportation.

3. The automatic assembly device for the torsion spring assembly of the ADB adjustment mechanism according to claim 2, characterized in that: A tray lifting mechanism (27) that cooperates with the sub-packaging line tray (30) is also provided on one side of the conveyor belt (25).

4. The automatic assembly device for the torsion spring assembly of the ADB adjustment mechanism according to claim 1, characterized in that: The vibrating disc material distributing mechanism (35) further includes a soundproof cover (15), which is arranged outside the moving disc motor cabinet (16), the material discharge port (17), the torque sleeve material bin (18), the torque sleeve material channel (19), the torsion spring material channel (20) and the torsion spring material bin (21), and one side of the soundproof cover (15) is open for the torque sleeve material channel (19) and the torsion spring material channel (20) to pass through.

5. The automatic assembly device for the torsion spring assembly of the ADB adjustment mechanism according to claim 1, characterized in that: The rotary pressure head (13) is a floating pressure head; a boss is provided at the bottom of the rotary pressure head (13) and matches the groove of the rear torque sleeve.

6. An automatic assembly method for an ADB adjustment mechanism torsion spring assembly using the device according to claim 5, characterized in that: The following steps are involved: When the sub-packaging line pallet (30) flows into the working position along the conveyor belt (25), the sub-packaging line pallet (30) is sensed by the sensor (26), so that the blocking limiter (29) is lifted to block the sub-packaging line pallet (30); the sub-packaging line pallet (30) is lifted by the pallet lifting mechanism (27), and the six-axis robot (34) starts to operate; Use the spring clamp (4) to clamp the spring retaining ring from the vibrating plate distributing mechanism (35) and place it on the tensioning mechanism (32) of the torsion spring assembly assembly mechanism (36), then clamp the axial thrust ball bearing and place it on the spring retaining ring; use the torque sleeve clamp (5) to clamp the front torque sleeve from the torque sleeve material channel (19) and place it on the spring retaining ring, then use the assembled flip clamp (3) to cover the guide core shaft (8) on the front torque sleeve; use the torque sleeve The clamping jaws (5) clamp the torsion spring and put it on the guide core shaft (8). The first cylinder (10) drives the pressure head (9) to press down, so that the torsion spring is pressed into the front torque sleeve. Then, the guide core shaft (8) is removed and put back to its original position by the assembled flip clamping jaws (3). The torque sleeve clamping jaws (5) clamp the rear torque sleeve from the torque sleeve material channel (19) and put it on the expansion sleeve (7). The second torsion spring is clamped from the torsion spring material channel (20) and put into the expansion sleeve (7). The expansion sleeve (7) is controlled to move with the slide rail (24) to the bottom of the pressure head (9), the expansion sleeve (7) expands, and the pressure head (9) is controlled to be pressed downward, so that the second torsion spring is pressed into the rear torque sleeve. After the press-fitting is completed, the expansion sleeve (7) is controlled to be tightened and moved back to its original position with the slide rail (24); the press-fitted rear torque sleeve assembly is lifted off the expansion sleeve (7) by assembling the flipping clamp (3), and is flipped and placed on the front torque sleeve assembly; The teeth of the tensioning mechanism (32) are spread open, the front torque sleeve is fixed on the tooling, and the second cylinder (12) is controlled to drive the rotary pressure head (13) to rotate and press the rear torque sleeve downward, so that the rear torque sleeve is combined with the front torque sleeve; after completion, the rotary pressure head (13) is lifted, and the pressed torsion spring assembly is grabbed by the assembly flipping clamp (3) and flipped, and placed on the sub-assembly line tray (30); then, the blocking limiter (29) is controlled to release it, so that the sub-assembly line tray (30) flows into the next station.

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