Six-wheel sealing equipment for flange sealing processing of shock absorber

Abstract

The invention discloses six-wheel sealing equipment for shock absorber flanging sealing machining, and relates to the technical field of automobile shock absorber machining, the six-wheel sealing equipment comprises a lower frame, a conveying jacking mechanism is arranged at the top of the lower frame, a tray is arranged at the conveying jacking mechanism, materials are arranged on the tray, and two supporting columns are fixedly connected to the top of the lower frame; the tops of the two supporting columns are fixedly connected with a top base, the top of the lower frame is fixedly connected with a plurality of lifting guide rods, and the lifting guide rods movably penetrate through the top base. The six-wheel sealing head can effectively avoid bevel wheel fluctuation caused by the influence of temperature and oil pressure, is conveniently compatible with flanging sealing of products with different diameters, can effectively solve the problem that the six-wheel sealing head has many and complex oil ways, reduces the processing difficulty and cost, can effectively reduce the influence of temperature on hydraulic pressure, and improves the working efficiency. And finally, the pressure of the product in the oil seal pre-pressing, flanging and rolling process can be monitored in real time, and the pressure resistance of the product is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive shock absorber processing, and particularly to a six-wheel sealing device for flanging and sealing of shock absorbers. Background Art

[0002] Shock absorbers are key components for the smooth running of automobiles. With the development of the automotive industry, shock absorbers are also being upgraded from traditional passive suspensions to active adaptive suspensions. The sealing part of the shock absorber oil reservoir mainly includes the port part of the oil reservoir. During the manufacturing and assembly of shock absorbers, it is necessary to bend the port part of the oil reservoir to form a sealed whole for the shock absorber. The purpose of sealing is to ensure that the oil inside the shock absorber does not leak and to ensure the normal operation of the shock absorber. This requires the use of sealing equipment, as follows.

[0003] For example, the patent with the publication number CN117324451A discloses a hydraulic direct drive six-head riveting and sealing machine and its sealing method. The hydraulic direct drive six-head riveting and sealing machine includes a shock absorber positioning mechanism, a six-head cutter head mechanism, a lifting assembly, and a servo lifting mechanism. The shock absorber positioning mechanism is arranged below the shock absorber and is used for clamping and positioning the shock absorber. The six-head cutter head mechanism is located above the shock absorber and is arranged on the lifting assembly. The lifting assembly is connected to the servo lifting mechanism, and the servo lifting mechanism is used to drive the six-head cutter head mechanism to perform rotational and lifting movements through the lifting assembly, so as to drive the six-head cutter head mechanism to move to the working position for sealing the shock absorber. During the rotation process, the six-head cutter head mechanism bends and flattens the shock absorber opening through the inclined wheel group and the flat wheel group in the cutter head assembly driven by hydraulic pressure to complete the sealing work of the shock absorber. In this application, the operations of flanging and flattening during the sealing process are separated, the sealing quality is more stable, the sealing appearance is better, and it can adapt to more types of shock absorber products.

[0004] However, the above-mentioned hydraulic direct drive six-head riveting and sealing machine still has the following areas for optimization. For example, both the positive pressure wheel and the inclined wheel are driven by hydraulic pressure, resulting in a complex oil circuit for the sealing head, difficult processing, high costs, and a high risk of oil leakage. It is difficult to maintain and replace the hydraulic sealing elements, and the maintenance time is relatively long. At the same time, there is no pressure sensor at the bottom, and only the force set by the spring is used as the final force for sealing. It cannot accurately control the sealing force and sealing size with the change of product types. Therefore, there is an urgent need for a six-wheel sealing device for flanging and sealing of shock absorbers to solve the above technical problems. Summary of the Invention

[0005] The invention discloses a six-wheel sealing device for flanging and sealing of shock absorbers, which is provided with a sealing mechanism so that when working, the inclined wheel assembly is made into a fixed quick-change structure and the hydraulic drive is removed, so that the fluctuation of the inclined wheel assembly caused by the influence of temperature and oil pressure, which leads to inconsistent product sealing size, can be avoided. When the product is changed, the inclined wheel assembly can be replaced to achieve compatible flanging and sealing of products with different diameters. Since a movable block is provided between the top of the positive pressure wheel and the six-wheel sealing head, and a first return spring is provided vertically between the movable block and the six-wheel sealing head, and a second return spring is provided horizontally, the function of products within a certain diameter range can be achieved without changing the shape. The method is simple in structure and practical.

[0006] By providing a sealing mechanism, when working, the positive pressure wheel assembly uses hydraulic propulsion and spring reset to simplify the oil circuit of the positive pressure wheel assembly, thereby effectively solving the problem of multiple and complex oil circuits of the six-wheel sealing head, reducing the processing difficulty and cost, and reducing the risk of oil leakage. In addition, a cooling seat is added, and the cooling water circulation loop inside the cooling seat is used to cool the six-wheel sealing head, effectively reducing the influence of temperature on hydraulic pressure and ensuring pressure stability.

[0007] By providing a clamping and fixing mechanism, during operation, the sealing margin of the product can be controlled and detected through the displacement ruler component so that its accuracy can be controlled within ±0.02mm, thereby sealing the product according to the sealing margin. In this way, the inner and outer diameters and consistency of the product after sealing can be guaranteed. At the same time, the pressure sensor can monitor the pressure of the product in the process of pre-pressing oil sealing, flanging and rolling in real time to ensure the pressure resistance of the product. It can combine the force and displacement curves to accurately determine which position of the product has a problem during sealing, and solve the problem analysis of the edge sealing product accordingly. In summary, the problems in the background technology are solved.

[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0009] The six-wheel sealing device for flanging and sealing of shock absorbers of the present invention comprises a lower frame, a conveying and lifting mechanism is provided on the top of the lower frame, a tray is provided at the conveying and lifting mechanism, materials are provided on the tray, two supporting columns are fixedly connected to the top of the lower frame, a top seat is fixedly connected to the top of the two supporting columns, a plurality of lifting guide rods are fixedly connected to the top of the lower frame, the lifting guide rods movably penetrate the top seat, the outer parts of the plurality of lifting guide rods are slidably sleeved with a lifting seat, and point-finding sensors are provided on both sides of the lifting seat;

[0010] Lifting mechanism; the lifting mechanism is located at the top seat and is transmission-connected to the lifting seat;

[0011] The sealing mechanism comprises a mounting frame, a downward pressure oil cylinder, a guide shaft, a six-wheel sealing head and a rotary drive motor. The mounting frame is fixedly mounted on the top of the lifting seat. The downward pressure oil cylinder is fixedly mounted on the top of the mounting frame. The telescopic end of the downward pressure oil cylinder is provided with a displacement ruler assembly. The top end of the guide shaft is connected to the output end of the downward pressure oil cylinder. The bottom end of the guide shaft is connected to an oil seal pre-tightening pressure head through a ball screw. The six-wheel sealing head is rotatably mounted on the lifting seat. The guide shaft penetrates the interior of the six-wheel sealing head. The exterior of the six-wheel sealing head is fixed near its top. A first sprocket is connected, the rotary drive motor is fixedly installed on one side of the lifting seat through a mounting piece, and the output end of the rotary drive motor is fixedly connected to a second sprocket, the second sprocket is connected to the first sprocket through a chain transmission, a positive pressure wheel assembly and a bevel wheel assembly are installed at the bottom of the six-wheel sealing head, a cooling seat is fixedly sleeved on the outside of the six-wheel sealing head, a cooling water circulation loop is arranged inside the cooling seat, a positive pressure wheel oil inlet connected to the positive pressure wheel assembly is arranged at the six-wheel sealing head, and the positive pressure wheel oil inlet runs through the interior of the cooling seat but is not connected to the cooling water circulation loop;

[0012] A clamping and fixing mechanism is disposed above the pallet and connected to the material.

[0013] Furthermore, a hydraulic station is provided on one side of the lower frame, and an electric control box is provided on the back of the lower frame. The hydraulic station is connected to the lifting mechanism, sealing mechanism and clamping and fixing mechanism pipelines, and the electric control box is electrically connected to the lifting mechanism, sealing mechanism and clamping and fixing mechanism.

[0014] Furthermore, there are three positive pressure wheel assemblies and three bevel wheel assemblies, and the three positive pressure wheel assemblies and the three bevel wheel assemblies are staggered and evenly distributed in a ring array.

[0015] Furthermore, a movable block is provided between the top of the positive pressure wheel assembly and the six-wheel sealing head, a first return spring is vertically provided between the top of the movable block and the six-wheel sealing head, and a second return spring is horizontally provided between the inside of the movable block and the six-wheel sealing head.

[0016] Furthermore, the positive pressure wheel assembly is fixed to the bottom of the movable block by four screws, and the inclined wheel assembly is fixed to the bottom of the six-wheel sealing head by one screw.

[0017] Furthermore, a protective cover is fixedly installed on the top of the lifting seat, and the protective cover is located outside the first sprocket and the second sprocket.

[0018] Furthermore, the lifting mechanism includes a lifting drive motor, a transmission shaft and a screw rod. The lifting drive motor is fixedly installed on the top of the top seat through a mounting part. The top end of the transmission shaft is connected to the output end of the lifting drive motor. Two screw rods are provided. Both of the screw rods are rotatably installed on the top seat, and the screw rod passes through the lifting seat and is threadedly connected to the lifting seat. The transmission shaft is respectively connected to the two screw rods through two sets of gears and toothed belts.

[0019] Furthermore, the clamping and fixing mechanism includes a bracket assembly, a mechanical clamp, a supporting tooling and a pressure sensor, the bracket assembly is fixedly installed on the top of the pallet, the mechanical clamp is slidably installed on the bracket assembly, the supporting tooling is fixedly installed on the top of the pallet, the top of the supporting tooling abuts against the bottom of the material, and a movable part is provided on the top of the supporting tooling, and the pressure sensor is installed on the bottom of the supporting tooling and connected to the movable part on the top of the supporting tooling.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This technical solution is provided with a sealing mechanism, so that when working, the inclined wheel assembly is made into a fixed quick-change structure and the hydraulic drive is removed, so that the fluctuation of the inclined wheel assembly caused by the temperature and oil pressure can be avoided, resulting in inconsistent product sealing size. When the product is changed, the inclined wheel assembly can be replaced to achieve compatibility with products of different diameters. The positive pressure wheel is provided with a movable block between the top and the six-wheel sealing head, and a first return spring is provided vertically between the movable block and the six-wheel sealing head, and a second return spring is provided horizontally, so that the product within a certain diameter range can be realized without changing the shape. This method has a simple structure and is practical;

[0022] 2. This technical solution is provided with a sealing mechanism, so that when working, the positive pressure wheel assembly uses hydraulic propulsion and spring reset to simplify the oil circuit of the positive pressure wheel assembly, thereby effectively solving the problem of multiple and complex oil circuits of the six-wheel sealing head, reducing processing difficulty and cost, and reducing the risk of oil leakage. In addition, a cooling seat is added, and the cooling water circulation circuit inside the cooling seat is combined to achieve cooling of the six-wheel sealing head, effectively reducing the influence of temperature on hydraulic pressure and ensuring pressure stability.

[0023] 3. This technical solution is provided with a clamping and fixing mechanism. During operation, since the displacement ruler assembly can be used to control the sealing margin of the product to be detected, with the precision controlled within ±0.02 mm, the product can be sealed according to the sealing margin. This can ensure the inner and outer diameters and consistency of the product after sealing. At the same time, the pressure sensor can monitor the pressure of the product in real time during the processes of pre-pressing oil seal, flanging, and rolling flat, ensuring the pressure resistance of the product. It can accurately determine which position of the product has problems during sealing by combining the force and displacement curves, and analyze and solve the problems of the edge-sealed product accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention;

[0026] Figure 2 It is a schematic structure diagram of another perspective of the present invention;

[0027] Figure 3 It is a schematic installation structure diagram of the lifting drive motor of the present invention;

[0028] Figure 4 It is a schematic installation structure diagram of the hydraulic cylinder of the present invention;

[0029] Figure 5 It is a schematic structure diagram of the driving connection between the rotary drive motor and the six-wheel sealing head of the present invention;

[0030] Figure 6 It is a schematic bottom view installation structure diagram of the positive pressure wheel assembly of the present invention;

[0031] Figure 7 It is an exploded structure diagram of the installation of the positive pressure wheel assembly of the present invention;

[0032] Figure 8 It is a schematic structure diagram of the internal cooling water circulation circuit of the cooling seat of the present invention;

[0033] Figure 9 It is a schematic installation structure diagram of the displacement ruler assembly of the present invention;

[0034] Figure 10 It is a schematic installation structure diagram of the mechanical claw of the present invention;

[0035] Figure 11 It is a schematic installation structure diagram of the pressure sensor of the present invention.

[0036] In the figure: 1, lower frame; 2, conveying and lifting mechanism; 3, tray; 4, material; 5, support column; 6, top seat; 7, lifting guide rod; 8, lifting seat; 9, position sensing point sensor; 10, lifting mechanism; 1001, lifting drive motor; 1002, transmission shaft; 1003, lead screw; 1004, gear; 1005, toothed belt; 11, sealing mechanism; 1101, mounting bracket; 1102, pressing oil cylinder; 1103, guide shaft; 1104, six-wheel sealing head; 1105, rotary drive motor; 1106, displacement scale assembly; 1107, oil seal pre-tightening press head; 1108, first sprocket; 1109, second sprocket; 1110, chain; 1111, protective cover; 1112, positive pressure wheel assembly; 1113, inclined wheel assembly; 1114, cooling seat; 1115, cooling water circulation circuit; 1116, positive pressure wheel oil inlet; 1117, movable block; 1118, first return spring; 1119, second return spring; 12, clamping and fixing mechanism; 1201, bracket assembly; 1202, mechanical claw; 1203, support tooling; 1204, pressure sensor; 13, hydraulic station; 14, electric control box. Specific embodiments

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that terms such as "surface", "side part", "gap", "peripheral side", etc. indicating orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0039] Refer to Figures 1-11 , a six-wheel sealing device for the flanging and sealing processing of shock absorbers, including a lower frame 1. A conveying and lifting mechanism 2 is provided at the top of the lower frame 1. A tray 3 is provided at the conveying and lifting mechanism 2. A material 4 is provided on the tray 3. Two support columns 5 are fixedly connected to the top of the lower frame 1. A top seat 6 is fixedly connected to the tops of the two support columns 5. A plurality of lifting guide rods 7 are fixedly connected to the top of the lower frame 1. The lifting guide rods 7 movably penetrate through the top seat 6. A lifting seat 8 is slidably sleeved on the outside of the plurality of lifting guide rods 7. Position sensing point sensors 9 are provided on both sides of the lifting seat 8;

[0040] Lifting mechanism 10; the lifting mechanism 10 is located at the top seat 6 and is in driving connection with the lifting seat 8; sealing mechanism 11, the sealing mechanism 11 includes a mounting frame 1101, a downward pressing oil cylinder 1102, a guide shaft 1103, a six-wheel sealing head 1104 and a rotary drive motor 1105. The mounting frame 1101 is fixedly installed on the top of the lifting seat 8, the downward pressing oil cylinder 1102 is fixedly installed on the top of the mounting frame 1101, and a displacement ruler assembly 1106 is provided at the telescopic end of the downward pressing oil cylinder 1102. The top end of the guide shaft 1103 is connected to the output end of the downward pressing oil cylinder 1102, and the bottom end of the guide shaft 1103 is connected with an oil seal pre-tightening press head 1107 through a ball screw. The six-wheel sealing head 1104 is rotatably installed through the lifting seat 8 in a penetrating manner. The guide shaft 1103 penetrates through the inside of the six-wheel sealing head 1104. A first sprocket 1108 is fixedly connected to the outside of the six-wheel sealing head 1104 near its top end. The rotary drive motor 1105 is fixedly installed on one side of the lifting seat 8 through a mounting member, and a second sprocket 1109 is fixedly connected to the output end of the rotary drive motor 1105. A connecting chain 1110 is used for driving connection between the second sprocket 1109 and the first sprocket 1108. A positive pressure wheel assembly 1112 and an inclined wheel assembly 1113 are installed at the bottom of the six-wheel sealing head 1104. A cooling seat 1114 is fixedly sleeved on the outside of the six-wheel sealing head 1104. A cooling water circulation circuit 1115 is provided inside the cooling seat 1114. A positive pressure wheel oil inlet 1116 communicating with the positive pressure wheel assembly 1112 is provided at the six-wheel sealing head 1104. The positive pressure wheel oil inlet 1116 penetrates through the inside of the cooling seat 1114 but is not communicated with the cooling water circulation circuit 1115; clamping and fixing mechanism 12, the clamping and fixing mechanism 12 is located above the displacement tray 3 and is connected with the material 4;

[0041] A hydraulic station 13 is provided on one side of the lower frame 1, and an electric control box 14 is provided on the back of the lower frame 1. The hydraulic station 13 is connected to the lifting mechanism 10, the sealing mechanism 11 and the clamping and fixing mechanism 12 through pipelines. The electric control box 14 is electrically connected to the lifting mechanism 10, the sealing mechanism 11 and the clamping and fixing mechanism 12. Both the positive pressure wheel assembly 1112 and the inclined wheel assembly 1113 are provided with three, and the three positive pressure wheel assemblies 1112 and the three inclined wheel assemblies 1113 are designed to be evenly distributed in an interlaced and annular array. A movable block 1117 is provided between the top of the positive pressure wheel assembly 1112 and the six-wheel sealing head 1104. A first return spring 1118 is vertically provided between the top of the movable block 1117 and the six-wheel sealing head 1104. A second return spring 1119 is horizontally provided between the inside of the movable block 1117 and the six-wheel sealing head 1104. The positive pressure wheel assembly 1112 is fixedly installed at the bottom of the movable block 1117 by four screws, and the inclined wheel assembly 1113 is fixedly installed at the bottom of the six-wheel sealing head 1104 by one screw. A protective cover 1111 is fixedly installed on the top of the lifting seat 8. The protective cover 1111 is located outside the first sprocket 1108 and the second sprocket 1109;

[0042] The lifting mechanism 10 includes a lifting drive motor 1001, a transmission shaft 1002 and a screw rod 1003. The lifting drive motor 1001 is fixedly installed on the top of the top seat 6 through a mounting member. The top end of the transmission shaft 1002 is connected to the output end of the lifting drive motor 1001. Two screw rods 1003 are provided. The two screw rods 1003 are both installed on the top seat 6 in a through-type rotation. The screw rods 1003 penetrate the lifting seat 8 and are screwed to the lifting seat 8. The transmission shaft 1002 is respectively connected to the two screw rods 1003 through two sets of gears 1004 and toothed belts 1005.

[0043] The clamping and fixing mechanism 12 includes a bracket assembly 1201, a mechanical clamp 1202, a supporting tooling 1203 and a pressure sensor 1204. The bracket assembly 1201 is fixedly installed on the top of the pallet 3, the mechanical clamp 1202 is installed on the bracket assembly 1201 for sliding up and down, the supporting tooling 1203 is fixedly installed on the top of the pallet 3, the top of the supporting tooling 1203 abuts against the bottom of the material 4, and the top of the supporting tooling 1203 is provided with a movable part, and the pressure sensor 1204 is installed at the bottom of the supporting tooling 1203 and is connected to the movable part at the top of the supporting tooling 1203.

[0044] In the specific implementation process, during operation, the material 4 is conveyed and lifted by the pallet 3 in cooperation with the conveying and lifting mechanism 2, and is clamped, fixed and limited by the mechanical jaw 1202. After the material 4 moves to the working station, the lifting drive motor 1001 is started, and two lead screws 1003 are synchronously driven to rotate by cooperating with two groups of gears 1004 and the toothed belt 1005, so as to drive the lifting seat 8 to move downward in cooperation with multiple guide rods, thereby driving the six-wheel sealing head 1104 to move downward. Until the six-wheel sealing head 1104 moves down to the position for seeking points, the rotation drive motor 1105 works, and cooperates with the second sprocket 1109, the first sprocket 1108 and the chain 1110 to drive the six-wheel sealing head 1104 to rotate, thereby driving the positive pressure wheel assembly 1112 and the inclined wheel assembly 1113 to rotate. Subsequently, the six-wheel sealing head 1104 continues to move down to the pre-sealing position, then the pressing oil cylinder 1102 extends to press and seal the oil seal and record the displacement value and pressure parameters. Then the six-wheel sealing head 1104 continues to move down to the final sealing position, and at the same time, the sealing force of the inclined wheel assembly 1113 is monitored. During the sealing process, it is always ensured that the sealing force is within the specified range. When the sealing force is too large or too small, the six-wheel sealing head 1104 is controlled to move up or down slowly to ensure the sealing force, and then it is lowered to the specified sealing allowance. After the sealing process is completed, the six-wheel sealing head 1104 is adjusted to move up 5 mm, the oil cylinder in the positive pressure wheel assembly 1112 extends, the six-wheel sealing head 1104 descends to the flat wheel sealing position, and at the same time, the flat wheel sealing size is monitored. Subsequently, the six-wheel sealing head 1104 resets and moves up, the mechanical jaw 1202 releases the material 4, the material 4 descends through the conveying and lifting mechanism 2, and at the same time, the stop of the conveying and lifting mechanism 2 releases and sends away the material 4 to complete the processing;

[0045] Among them, the hydraulic station 13 is used to cooperate with multiple oil cylinders in the device for operation, and the electric control box 14 is used to cooperate with the control switch to control the operation of the device;

[0046] Among them, the three positive pressure wheel assemblies 1112 and the three inclined wheel assemblies 1113 can uniformly process the sealing of the material 4, improving the sealing processing quality;

[0047] Among them, there is a movable block 1117 between the top of the positive pressure wheel assembly 1112 and the six-wheel sealing head 1104. There is a first return spring 1118 vertically between the top of the movable block 1117 and the six-wheel sealing head 1104, and a second return spring 1119 horizontally between the inside of the movable block 1117 and the six-wheel sealing head 1104, which can enable the three positive pressure wheel assemblies 1112 to realize the function of no need to change the model for products within a certain diameter range during operation;

[0048] Among them, the positive pressure wheel assembly 1112 is fixed to the bottom of the movable block 1117 by four screws, and the inclined wheel assembly 1113 is fixed to the bottom of the six-wheel sealing head 1104 by one screw, so that the positive pressure wheel assembly 1112 and the inclined wheel assembly 1113 can be conveniently replaced according to actual needs;

[0049] Among them, the protective cover 1111 is used to protect the first sprocket 1108, the second sprocket 1109 and the chain 1110, and has a certain protective effect on the staff to prevent the staff from accidentally touching.

[0050] Working principle: During operation, the material 4 is conveyed and lifted by the tray 3 in cooperation with the conveying and lifting mechanism 2, and is clamped, fixed and limited by the mechanical claw 1202. After the material 4 moves to the working position, the lifting drive motor 1001 is started, and the two lead screws 1003 are synchronously driven to rotate by cooperating with the two groups of gears 1004 and the toothed belt 1005, so as to drive the lifting seat 8 to move down by cooperating with multiple guide rods, thereby driving the six-wheel sealing head 1104 to move down. Until the six-wheel sealing head 1104 moves down to the position finding point, the rotation drive motor 1105 works, and cooperates with the second sprocket 1109, the first sprocket 1108 and the chain 1110 to drive the six-wheel sealing head 1104 to rotate, thereby driving the positive pressure wheel assembly 1112 and the inclined wheel assembly 1113 to rotate. Subsequently, the six-wheel sealing head 1104 continues to move down to the pre-sealing position, and then the pressing oil cylinder 1102 extends to press and seal the oil seal to record the displacement value and pressure parameters. Then the six-wheel sealing head 1104 continues to move down to the final sealing position, and at the same time monitors the sealing force of the inclined wheel assembly 1113, and always ensures that the sealing force is within the specified range during the sealing process. When the sealing force is too large or too small, control the six-wheel sealing head 1104 to slowly move up or down to ensure the sealing force, and then drop to the specified sealing allowance. After the sealing process is completed, adjust the six-wheel sealing head 1104 to move up 5 mm, the oil cylinder in the positive pressure wheel assembly 1112 extends, the six-wheel sealing head 1104 drops to the flat wheel sealing position, and at the same time monitors the flat wheel sealing size. Subsequently, the six-wheel sealing head 1104 resets and moves up, the mechanical claw 1202 releases the material 4, the material 4 descends through the conveying and lifting mechanism 2, and at the same time the stop of the conveying and lifting mechanism 2 releases, and the material 4 is sent away to complete the processing;

[0051] In the above process, by making the inclined wheel assembly 1113 into a fixed quick-change structure and removing the hydraulic drive, the fluctuation of the inclined wheel assembly 1113 caused by the influence of temperature and oil pressure can be avoided, which may lead to inconsistent product sealing dimensions. When the product is changed, the inclined wheel assembly 1113 is replaced to achieve compatibility with the flanging and sealing of products with different diameters. Since there is a movable block 1117 between the top of the positive pressure wheel and the six-wheel sealing head 1104, and a first return spring 1118 is provided between the movable block 1117 and the six-wheel sealing head 1104 vertically, and a second return spring 1119 is provided horizontally, the positive pressure wheel can realize the function of products within a certain diameter range without model change. This method is simple and practical;

[0052] In the above process, since the positive pressure wheel assembly 1112 simplifies the oil circuit of the positive pressure wheel assembly 1112 by using hydraulic propulsion and spring return, the problems of the six-wheel sealing head 1104 with multiple and complex oil circuits can be effectively solved, the processing difficulty and cost can be reduced, the oil leakage risk can be reduced, and a cooling seat 1114 is added. With the internal cooling water circulation circuit 1115 of the cooling seat 1114, the cooling of the six-wheel sealing head 1104 is realized, and the influence of temperature on the hydraulic pressure can be effectively reduced to ensure pressure stability;

[0053] In the above process, since the displacement ruler assembly 1106 can be used to control and detect the sealing allowance of the product, and its accuracy can be controlled within ±0.02 mm, the product can be sealed according to the sealing allowance, which can ensure the inner and outer diameters and consistency of the product after sealing. At the same time, the pressure sensor 1204 realizes real-time monitoring of the pressure of the product during pre-pressing oil seal, flanging and rolling flat, ensuring the pressure resistance of the product. The position where the product has problems during sealing can be accurately judged by combining the force and displacement curves, and the problems of the edge-sealed product can be analyzed and solved accordingly.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A six-wheel sealing device for the flanging seal processing of a shock absorber, comprising a lower frame (1), characterized in that: A conveying and lifting mechanism (2) is provided at the top of the lower frame (1). A tray (3) is provided at the conveying and lifting mechanism (2), and a material (4) is provided on the tray (3). Two support columns (5) are fixedly connected to the top of the lower frame (1), and a top seat (6) is fixedly connected to the tops of the two support columns (5). A plurality of lifting guide rods (7) are fixedly connected to the top of the lower frame (1), the lifting guide rods (7) movably penetrate through the top seat (6), and a lifting seat (8) is slidably sleeved on the outside of the plurality of lifting guide rods (7). Position sensors (9) are provided on both sides of the lifting seat (8); A lifting mechanism (10); the lifting mechanism (10) is located at the top seat (6) and is in transmission connection with the lifting seat (8); A sealing mechanism (11), the sealing mechanism (11) includes a mounting frame (1101), a downward pressing oil cylinder (1102), a guide shaft (1103), a six-wheel sealing head (1104) and a rotary drive motor (1105). The mounting frame (1101) is fixedly installed on the top of the lifting seat (8), the downward pressing oil cylinder (1102) is fixedly installed on the top of the mounting frame (1101), and a displacement ruler assembly (1106) is provided at the telescopic end of the downward pressing oil cylinder (1102). The top end of the guide shaft (1103) is connected to the output end of the downward pressing oil cylinder (1102), and the bottom end of the guide shaft (1103) is connected with an oil seal pre-tightening pressing head (1107) through a ball screw. The six-wheel sealing head (1104) is rotatably installed through the lifting seat (8) in a penetrating manner, the guide shaft (1103) penetrates through the inside of the six-wheel sealing head (1104), a first sprocket (1108) is fixedly connected to the outside of the six-wheel sealing head (1104) near its top end, the rotary drive motor (1105) is fixedly installed on one side of the lifting seat (8) through a mounting member, and a second sprocket (1109) is fixedly connected to the output end of the rotary drive motor (1105). The second sprocket (1109) and the first sprocket (1108) are in transmission connection through a connecting chain (1110). A positive pressure wheel assembly (1112) and an inclined wheel assembly (1113) are installed at the bottom of the six-wheel sealing head (1104). A cooling seat (1114) is fixedly sleeved on the outside of the six-wheel sealing head (1104), a cooling water circulation circuit (1115) is provided inside the cooling seat (1114), a positive pressure wheel oil inlet (1116) communicating with the positive pressure wheel assembly (1112) is provided at the six-wheel sealing head (1104), and the positive pressure wheel oil inlet (1116) penetrates through the inside of the cooling seat (1114) but is not communicated with the cooling water circulation circuit (1115); A clamping and fixing mechanism (12), the clamping and fixing mechanism (12) is above the displacement tray (3) and is connected to the material (4).

2. The six-wheel sealing device for flanging and sealing of shock absorbers according to claim 1, wherein: A hydraulic station (13) is provided on one side of the lower frame (1), and an electric control box (14) is provided on the back of the lower frame (1). The hydraulic station (13) is connected to the lifting mechanism (10), the sealing mechanism (11) and the clamping and fixing mechanism (12) through pipelines, and the electric control box (14) is electrically connected to the lifting mechanism (10), the sealing mechanism (11) and the clamping and fixing mechanism (12).

3. The six-wheel sealing device for flanging and sealing of a shock absorber according to claim 1, characterized in that: The positive pressure wheel assemblies (1112) and the inclined wheel assemblies (1113) are each provided with three, and the three positive pressure wheel assemblies (1112) and the three inclined wheel assemblies (1113) are designed to be staggered and evenly distributed in a ring array.

4. The six-wheel sealing device for the flanging seal processing of a shock absorber according to claim 1, characterized in that: A movable block (1117) is provided between the top of the positive pressure wheel assembly (1112) and the six-wheel sealing head (1104), a first return spring (1118) is vertically provided between the top of the movable block (1117) and the six-wheel sealing head (1104), and a second return spring (1119) is horizontally provided between the inside of the movable block (1117) and the six-wheel sealing head (1104).

5. The six-wheel sealing device for the flanging seal processing of a shock absorber according to claim 4, characterized in that: The positive pressure wheel assembly (1112) is fixed to the bottom of the movable block (1117) by four screws, and the inclined wheel assembly (1113) is fixed to the bottom of the six-wheel sealing head (1104) by one screw.

6. The six-wheel sealing device for flanging and sealing of a shock absorber according to claim 1, characterized in that: A protective cover (1111) is fixedly mounted on the top of the lifting seat (8), and the protective cover (1111) is located outside the first sprocket (1108) and the second sprocket (1109).

7. The six-wheel sealing device for flanging and sealing processing of a shock absorber according to claim 1, characterized in that: The lifting mechanism (10) comprises a lifting drive motor (1001), a transmission shaft (1002) and a screw rod (1003); the lifting drive motor (1001) is fixedly mounted on the top of the top seat (6) through a mounting member; the top end of the transmission shaft (1002) is connected to the output end of the lifting drive motor (1001); two screw rods (1003) are provided; both screw rods (1003) are rotatably mounted on the top seat (6) in a through-type manner; the screw rods (1003) penetrate the lifting seat (8) and are screwed to the lifting seat (8); the transmission shaft (1002) is respectively connected to the two screw rods (1003) in a transmission manner through two sets of gears (1004) and a toothed belt (1005).

8. The six-wheel sealing device for the flanging seal processing of a shock absorber according to claim 1, wherein: The clamping and fixing mechanism (12) comprises a support assembly (1201), a mechanical clamp (1202), a supporting tool (1203) and a pressure sensor (1204); the support assembly (1201) is fixedly mounted on the top of the pallet (3); the mechanical clamp (1202) is slidably mounted on the support assembly (1201) up and down; the supporting tool (1203) is fixedly mounted on the top of the pallet (3); the top of the supporting tool (1203) abuts against the bottom of the material (4); and a movable part is provided on the top of the supporting tool (1203); the pressure sensor (1204) is mounted on the bottom of the supporting tool (1203) and is connected to the movable part on the top of the supporting tool (1203).

Images