An automatic bearing oil seal die-casting production line and its usage method

Abstract

The automatic bearing oil seal die-casting production line provided by the present invention and its usage method relate to the field of mechanical assembly; the production line includes an inner cylinder handling robot assembly, an inner cylinder conveyor line without press-fitting, a bearing feeding assembly, a bearing pressing assembly and a bearing bracket, an oil seal feeding assembly, a bearing oil seal bracket, an oil seal pressing assembly and an inner cylinder conveyor assembly with press-fitting; it has multiple grippers that can perform multi-layer grasping to grasp the inner cylinder, bearings and bearing oil seals, thereby improving the efficiency and accuracy of grasping bearings and bearing oil seals. The grippers can reduce the number of fixture replacements and time by using a rotating method, and the gripper material can be designed according to the material of the material to avoid damaging the material; the production line of the present invention uses the above mechanism for multi-layer grasping, improving the automation effect of the overall production line, reducing the number of times and time for manual placement of bearings and bearing oil seals, and fully improving the die-casting efficiency of the production line.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical assembly, and particularly relates to an automatic bearing oil seal die-casting production line and a method for using the same. Background Art

[0002] Currently, most bearing installations are carried out manually, where workers use gloved hands to pick up bearings of various sizes. There is still a risk of dropping during the picking process. During manual assembly, a hammer is used for knocking, and a small bearing is pressed into a large bearing by manpower or a press. Whether it is manpower or controlling the press, this situation leads to low efficiency, high damage to the bearings during the assembly process, and high production costs. For bearing assembly, hard installation and impact should be avoided, and the force applied needs to be uniform. There are many existing devices for bearing assembly, but this production line is for a process from bearing picking to complete bearing assembly.

[0003] For example, the bearing processing and assembly machine disclosed in Patent Application No. 201620387410.0 includes a bearing assembly main body, a driving motor, and a bearing assembly equipment base. The bearing assembly equipment base is arranged below the bearing assembly main body, the driving motor is arranged on the right side of the bearing assembly main body, and there is a pressure rod above the left upper part of the bearing assembly equipment main body, and a hydraulic cylinder is above the pressure rod. In this way, during the die-casting process of the bearing, the position of the bearing can be better restricted, and the size of the die-casting force can be better controlled. This utility model has a simple structure, reasonable design, small assembly error, and less manual operation, thus improving the efficiency.

[0004] Another example is the flexible medium and small-sized bearing assembly tooling disclosed in Patent Application No. 2018202035600, which includes a working platform, a guide post cylinder, a cylinder mounting bracket, and a pressing head device. The guide posts are vertically symmetrically screwed to the top surface of the working platform, the cylinder mounting bracket is arranged on the upper part of the guide posts, the cylinder is arranged upside down on the cylinder mounting bracket, and the pressing head device is slidably arranged on the guide posts and fixedly installed with the top of the cylinder. Moreover, an assembly hole is made in the center of the working platform, and the pressing head has various specifications and can be replaced at any time to suit bearings of various models, which is also convenient for press-fitting. This flexible medium and small-sized bearing assembly tooling of the utility model has a simple structure, is easy to manufacture, has a low manufacturing cost, and the auxiliary tooling can be simply replaced and adjusted for bearings of different sizes and specifications. It has a small volume and occupies little space.

[0005] However, for the above two types of auxiliary tooling for bearing assembly, improvements have only been made on how to make the bearing evenly stressed and avoid collisions during the die-casting process of the bearing. However, no corresponding measures have been taken for the losses that may occur during the movement of large and small bearings and oil seals. In fact, there are many mechanical devices for bearing die-casting, but there is no production line operation specifically for the process from grasping to die-casting. And this production line is targeted at the process of grasping large and small bearings and oil seals, and can perform multi-layer grasping, reducing the number of times and time for manual placement of bearings. The gripper uses a rotating method, which can reduce the number of times and time for fixture replacement. The material of the gripper can be designed according to the material of the material to avoid damaging the material. Summary of the Invention

[0006] The object of the present invention is to provide an automatic bearing and oil seal die-casting production line and its use method. Aiming at the existing auxiliary process for bearing and oil seal die-casting without a complete automated production line, it can accurately place large and small bearings and oil seals from the tray to a fixed position for die-casting through a gripper, realizing the efficient and precise transfer of large and small bearings and oil seals, greatly improving the automation degree of automatic bearing and oil seal die-casting, being able to achieve the automated operation of automatic bearing and oil seal die-casting, and improving the working efficiency of the production line.

[0007] To achieve the above object, the present invention proposes the following technical solution: An automatic bearing and oil seal die-casting production line includes an unassembled inner cylinder conveyor line, an inner cylinder handling robot assembly, a bearing feeding assembly, a bearing bracket, a die-casting bearing assembly, an oil seal feeding assembly, an oil seal pressing assembly, an assembled inner cylinder conveyor assembly, a bearing and oil seal bracket, and a control unit. The control unit is connected to the inner cylinder handling robot assembly, the bearing feeding assembly, the die-casting bearing assembly, the oil seal feeding assembly, and the oil seal pressing assembly in a controlled manner;

[0008] The inner cylinder handling robot assembly is arranged in the conveying direction of the unassembled inner cylinder conveyor line. The bearing bracket is arranged on one side of the unassembled inner cylinder conveyor line, and its extending direction is perpendicular to the conveying direction of the unassembled inner cylinder conveyor line. The bearing feeding assembly and the die-casting bearing assembly are respectively arranged on both sides of the bearing bracket parallel to its extending direction. The unassembled inner cylinder conveyor line is used to convey a number of unassembled inner cylinders. The bearing bracket is used to store a number of large bearings and small bearings. The control unit controls the inner cylinder handling robot assembly to pick up the unassembled inner cylinder and place it on the first pressing platform of the die-casting bearing assembly, controls the bearing feeding assembly to pick up small bearings and large bearings in sequence and place them on the first pressing platform, and controls the die-casting bearing assembly to die-cast the small bearings, unassembled inner cylinders, and large bearings placed on the first pressing platform in sequence to obtain a die-cast bearing inner cylinder;

[0009] The pressed oil seal assembly is arranged on one side of the inner cylinder handling robot assembly away from the un-pressed inner cylinder conveying line, and the pressed oil seal assembly, the die-cast bearing assembly, and the un-pressed inner cylinder conveying line are arranged in a ring around the periphery of the inner cylinder handling robot assembly; the oil seal feeding assembly is located between the die-cast bearing assembly and the pressed oil seal assembly, and the bearing oil seal bracket is arranged on the oil seal feeding assembly; the pressed inner cylinder conveying assembly is arranged on one side of the pressed oil seal assembly away from the oil seal feeding assembly; the bearing oil seal bracket is used to store a plurality of bearing oil seals; the control unit controls the inner cylinder handling robot assembly to pick up the die-cast bearing inner cylinder on the first pressing table and turn it over and place it on the second pressing table of the pressed oil seal assembly, controls the oil seal feeding assembly to pick up the bearing oil seal and place it on the second pressing table, and controls the pressed oil seal assembly to press the die-cast bearing inner cylinder and the bearing oil seal placed in sequence on the second pressing table to obtain a product bearing; the control unit controls the inner cylinder handling robot assembly to pick up the product bearing on the second pressing table and turn it over and place it on the pressed inner cylinder conveying assembly to complete die-casting production.

[0010] Further, the inner cylinder handling robot assembly includes a bottom base, a six-axis robotic arm, and an inner cylinder gripper assembly; the six-axis robotic arm is installed on the bottom base, and the inner cylinder gripper assembly is installed on the six-axis robotic arm;

[0011] The inner cylinder gripper assembly includes a claw hand, and a connecting plate I is installed at the bottom of the claw hand; a slider I and a slider II are installed on the connecting plate I; the slider I and the slider II are slidably installed above the guide rail; on one side of the guide rail away from the claw hand, a cylinder I and a cylinder II are arranged, and the cylinder I and the cylinder II are respectively connected to the connecting plate I through a first connecting rod and a connecting plate II to control the grasping range of the claw hand.

[0012] Further, the bearing feeding assembly includes a first truss mechanism and a first grasping mechanism; the first grasping mechanism is installed on the first truss mechanism, and the bearing bracket is located directly below the first grasping mechanism;

[0013] The first truss mechanism includes a guide rail I, a guide rail II, a guide rail III, a slide table I and a slide table II, a motor I, a motor II, and a suction cup; the slide table I moves on the guide rail I along a direction perpendicular to the conveying direction of the un-pressed inner cylinder conveying line; the guide rail II is installed on the slide table I, and the motor I and the slide table II are installed on the guide rail II; the guide rail III is installed on the slide table II, and the motor II and the suction cup are installed on the guide rail III; the first grasping mechanism is installed below the suction cup.

[0014] The first grasping mechanism includes a first cylinder, a second cylinder, gripper I, gripper II, a second connecting rod, a first connecting disk, and a right-angle connecting disk. The second connecting rod and the right-angle connecting disk are installed on the first connecting disk. The first cylinder and the second cylinder are respectively arranged on two right-angle sides of the right-angle connecting disk. The gripper I and the gripper II are installed below the first cylinder and the second cylinder, and the gripping directions of the gripper I and the gripper II form a 90° angle, and are respectively used for gripping the large bearing and the small bearing on the bearing bracket.

[0015] Furthermore, the oil seal feeding component includes a second truss mechanism and a second grasping mechanism. The second grasping mechanism is installed on the second truss mechanism, and the bearing oil seal bracket is installed directly below the second grasping mechanism.

[0016] The second truss mechanism includes a guide rail IV, a guide rail V, a guide rail VI, a sliding table III, and a sliding table IV, a motor III, and a motor IV. The sliding table III moves on the guide rail IV along a direction perpendicular to the conveying direction of the unassembled inner cylinder conveying line. The guide rail V is installed on the sliding table III, and the motor III and the sliding table IV are installed on the guide rail V. The guide rail VI is installed on the sliding table IV, and the motor IV and the second grasping mechanism are installed on the guide rail VI.

[0017] The second grasping mechanism includes a third cylinder, gripper III, a third connecting rod, and a second connecting disk. The third connecting rod is installed on the guide rail VI. One end of the third cylinder is installed on the second connecting disk, and the other end is connected to the third connecting rod. The gripper III is installed on the third cylinder, and the gripper III is used for grasping the bearing oil seal.

[0018] Another technical solution of the present invention lies in disclosing a method for using the above automatic grasping bearing oil seal die-casting production line. The method includes the following steps implemented by the control unit:

[0019] 1) The first grasping mechanism of the bearing feeding component grasps the small bearing on the bearing bracket and places it on the first pressing table of the die-casting bearing component.

[0020] 2) Under the normal conveying state of the unassembled inner cylinder conveying line, adjust the inner cylinder gripper component of the inner cylinder handling robot component to fit the size of the unassembled inner cylinder, and grasp the inner cylinder and place it at the corresponding position on the first pressing table with the small bearing.

[0021] 3) The first grasping mechanism of the bearing feeding component grasps the large bearing on the bearing bracket and places it on the inner cylinder on the first pressing table, and is die-cast by the bearing die-casting mechanism to obtain a die-cast bearing inner cylinder.

[0022] 4) The inner cylinder gripper component of the inner cylinder handling robot component grasps the die-cast bearing inner cylinder on the first pressing table and places it on the second pressing table of the oil seal pressing component.

[0023] 5) The second grasping mechanism of the oil seal feeding assembly grasps the bearing oil seal on the bearing oil seal bracket and places it on the die-cast bearing inner cylinder of the second pressing table; meanwhile, the bearing feeding assembly and the inner cylinder handling robot assembly repeat steps 1) to 3);

[0024] 6) The oil seal die-casting mechanism performs die-casting to obtain the product bearing;

[0025] 7) The inner cylinder gripper assembly of the inner cylinder handling robot assembly grasps the product bearing, flips it, and places it on the inner cylinder conveying assembly after press-fitting;

[0026] 8) Repeat steps 4) to 7), and the die-casting production line continues to produce.

[0027] As can be seen from the above technical solutions, the technical solutions of the present invention have obtained the following beneficial effects:

[0028] (1) The automatic grasping bearing oil seal die-casting production line disclosed by the present invention can accurately convey the inner cylinder to the position where the manipulator can quickly grasp it through the unpress-fitted inner cylinder conveying line and the press-fitted inner cylinder conveying line, improving the production line efficiency;

[0029] (2) The automatic grasping bearing oil seal die-casting production line disclosed by the present invention increases the stress area during bearing die-casting by setting the method of grasping, placing and die-casting the inner cylinder together, thereby reducing the deformation of the bearing during die-casting;

[0030] (3) The inner cylinder handling robot assembly designed in the automatic grasping bearing oil seal die-casting production line of the present invention can accurately and quickly handle the inner cylinder. The width of the gripper in the inner cylinder gripper assembly can be controlled by a cylinder, so it can adapt to inner cylinders of various specifications and improve the working efficiency of the production line;

[0031] (4) For the automatic grasping bearing oil seal die-casting production line proposed by the present invention, the bearing feeding assembly and the oil seal feeding assembly thereof. The first and second truss mechanisms on this assembly can move in the X, Y, and Z directions, having flexibility; moreover, two grippers are installed on the truss mechanism of the bearing feeding assembly through suction cups. The gripper I and the gripper II form a 90° angle and respectively clamp the large and small bearings on the bearing bracket; this form of gripper method can perform multi-layer grasping, reducing the number and time of manual placement of bearings; the gripper adopts a rotating method, which can reduce the number and time of fixture replacement, and the gripper material can be designed according to the material of the material to avoid damaging the material.

[0032] (5) The automatic bearing oil seal die-casting production line disclosed by the present invention, in which the bearing bracket can hold bearings of various specifications, reducing the time cost and greatly improving the production line efficiency; the entire production line can perfectly combine the die-casting of bearings and oil seals and the grasping of large and small bearings and oil seals, realizing the full automation of the automatic bearing oil seal die-casting production line, saving a large amount of manpower and greatly improving the bearing assembly efficiency.

[0033] It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be regarded as part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.

[0034] The foregoing and other aspects, embodiments and features of the teachings of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of exemplary embodiments, will be apparent in the following description or will be learned through the practice of specific embodiments according to the teachings of the present invention. Brief Description of the Drawings

[0035] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be represented by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present invention will be described by way of example and with reference to the drawings, wherein:

[0036] Figure 1 is the overall structure diagram of the automatic bearing oil seal die-casting production line of the present invention;

[0037] Figure 2 is the structure diagram of the inner cylinder conveying line without press-fitting of the present invention;

[0038] Figure 3 is the structure diagram of the inner cylinder handling robot assembly of the present invention;

[0039] Figure 4 is the structure diagram of the inner cylinder handling gripper assembly of the present invention;

[0040] Figure 5 is the structure diagram of the bearing feeding assembly of the present invention;

[0041] Figure 6 is the schematic diagram of the first truss mechanism of the bearing feeding assembly of the present invention;

[0042] Figure 7 is the schematic diagram of the first grasping mechanism of the bearing feeding assembly of the present invention;

[0043] Figure 8 is the structure diagram of the die-cast bearing assembly of the present invention;

[0044] Figure 9 Structural diagram of the conveying assembly of the pre-pressed inner cylinder of the present invention;

[0045] Figure 10 Schematic structural diagram of the oil seal feeding assembly of the present invention;

[0046] Figure 11 Schematic diagram of the second truss mechanism of the oil seal feeding assembly of the present invention;

[0047] Figure 12 Schematic diagram of the second grasping mechanism of the oil seal feeding assembly of the present invention;

[0048] Figure 13 Structural diagram of the die-cast oil seal assembly of the present invention.

[0049] The specific meanings of the marks in the figure are as follows:

[0050] 210 - Unpressed inner cylinder conveying line; 211 - Unpressed inner cylinder conveying line bracket; 212 - First driving mechanism; 213 - First conveyor belt; 214 - First idler roller; 215 - First drum; 220 - Inner cylinder handling robot assembly; 221 - Bottom base; 222 - Six-axis robotic arm; 223 - Inner cylinder gripper assembly; 2231 - Claw hand; 2232 - Connecting plate I; 2233 - Slide block I; 2234 - Slide block II; 2235 - Guide rail; 2236 - Cylinder I; 2237 - Cylinder II; 230 - Bearing feeding assembly; 231 - First truss mechanism; 2311 - Guide rail I; 2312 - Guide rail II; 2133 - Guide rail III; 2134 - Slide table I; 2135 - Slide table II; 2136 - Motor I; 2137 - Motor II; 2138 - Suction cup; 232 - First grasping mechanism; 2321 - First cylinder; 2322 - Second cylinder; 2323 - Claw I; 2324 - Claw II; 2325 - Second connecting rod; 2326 - First connecting disk; 2327 - Right-angle connecting disk; 240 - Bearing bracket; 250 - Die-cast bearing assembly; 251 - First pressing table; 252 - Bearing die-casting mechanism; 260 - Oil seal feeding assembly; 261 - Second truss mechanism; 262 - Second grasping mechanism; 2611 - Guide rail IV; 2612 - Guide rail V; 2613 - Guide rail VI; 2614 - Slide table III; 2615 - Slide table IV; 2616 - Motor III; 2617 - Motor IV; 2621 - Third cylinder; 2622 - Claw III; 2623 - Third connecting rod; 2624 - Second connecting disk; 270 - Pressing oil seal assembly; 2701 - Second pressing table; 2702 - Oil seal die-casting mechanism; 280 - Conveying assembly of the pre-pressed inner cylinder; 281 - Conveying line bracket of the pre-pressed inner cylinder; 282 - Second driving mechanism; 283 - Second conveyor belt; 284 - Second idler roller; 285 - Second drum; 290 - Bearing oil seal bracket. Detailed implementation manners

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meaning understood by those of ordinary skill in the field to which the present invention pertains.

[0052] The terms "first", "second", and similar terms used in the description and claims of this patent application for the invention do not denote any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, singular forms such as "a", "an", or "the" do not denote a limitation on quantity, but rather indicate the presence of at least one. Words such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the features, wholes, steps, operations, elements, and / or components listed after "comprising" or "including", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations. Terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0053] Based on the existing improvements in the structure of the bearing assembly auxiliary tooling, most are to improve the uniform bearing force and avoid collisions, etc. There are basically no corresponding measures for how to reduce the movement loss of large and small bearings and oil seals during the assembly process, nor is there an automatic production line for the entire process of bearing grasping to die-casting. The purpose of the present invention is to propose an automatic bearing and oil seal die-casting production line and its usage method for the above problems, which can accurately control the transfer of large and small bearings and oil seals, avoid movement loss during the assembly process; fully realize the automation of bearing and oil seal die-casting, and significantly improve the working efficiency of the production line.

[0054] The following will further specifically introduce the automatic bearing and oil seal die-casting production line and its usage method disclosed in the present invention with reference to the accompanying drawings.

[0055] Combined with Figure 1The shown automatic grabbing bearing oil seal die-casting production line includes an inner cylinder conveying line 210 for unassembled inner cylinders, an inner cylinder handling robot assembly 220, a bearing feeding assembly 230, a bearing bracket 240, a die-casting bearing assembly 250, an oil seal feeding assembly 260, an oil seal pressing assembly 270, an inner cylinder conveying assembly 280 for assembled inner cylinders, a bearing oil seal bracket 290, and a control unit. The control unit is connected to the inner cylinder handling robot assembly 220, the bearing feeding assembly 230, the die-casting bearing assembly 250, the oil seal feeding assembly 260, and the oil seal pressing assembly 270 in a controlled manner;

[0056] As shown in the figure, the inner cylinder handling robot assembly 220 is arranged in the conveying direction of the inner cylinder conveying line 210 for unassembled inner cylinders. The bearing bracket 240 is arranged on one side of the inner cylinder conveying line 210 for unassembled inner cylinders, and its extending direction is perpendicular to the conveying direction of the inner cylinder conveying line 210 for unassembled inner cylinders. The bearing feeding assembly 230 and the die-casting bearing assembly 250 are respectively arranged on both sides of the bearing bracket 240 parallel to its extending direction. The inner cylinder conveying line 210 for unassembled inner cylinders is used to convey a number of unassembled inner cylinders, and the bearing bracket 240 is used to store a number of large bearings and small bearings. The oil seal pressing assembly 270 is arranged on the side of the inner cylinder handling robot assembly 220 away from the inner cylinder conveying line 210 for unassembled inner cylinders, and the oil seal pressing assembly 270, the die-casting bearing assembly 250, and the inner cylinder conveying line 210 for unassembled inner cylinders surround the inner cylinder handling robot assembly 220 in a circle. The oil seal feeding group 260 is located between the die-casting bearing assembly 250 and the oil seal pressing assembly 270, and the bearing oil seal bracket 290 is arranged on the oil seal feeding assembly 260. The inner cylinder conveying assembly 280 for assembled inner cylinders is arranged on the side of the oil seal pressing assembly 270 away from the oil seal feeding assembly 260. The bearing oil seal bracket 290 is used to store a number of bearing oil seals.

[0057] During specific use, the control unit first controls the inner cylinder handling robot assembly 220 to pick up an unassembled inner cylinder and place it on the first pressing table 251 of the die-casting bearing assembly 250, controls the bearing feeding assembly 230 to pick up a small bearing and a large bearing in sequence and place them on the first pressing table 251, and controls the die-casting bearing assembly 250 to die-cast the small bearing, the unassembled inner cylinder, and the large bearing placed on the first pressing table 251 in sequence to obtain a die-cast bearing inner cylinder. Subsequently, the control unit controls the inner cylinder handling robot assembly 220 to pick up the die-cast bearing inner cylinder on the first pressing table 251 and turn it over and place it on the second pressing table 2701 of the oil seal pressing assembly 270, controls the oil seal feeding assembly 260 to pick up the bearing oil seal and place it on the second pressing table 2701, and controls the oil seal pressing assembly 270 to die-cast the die-cast bearing inner cylinder and the bearing oil seal placed on the second pressing table 2701 in sequence to obtain a product bearing. The control unit controls the inner cylinder handling robot assembly 220 to pick up the product bearing on the second pressing table 2701 and turn it over and place it on the inner cylinder conveying assembly 280 for assembled inner cylinders to complete the die-casting production.

[0058] Combined Figure 2 As shown, as an alternative implementation structure of the unassembled inner cylinder conveyor line 210, it includes an unassembled inner cylinder conveyor line bracket 211, a first driving mechanism 212, a first conveyor belt 213, a first idler 214, and a first roller 215 that are cooperatively assembled on the unassembled inner cylinder conveyor line bracket 211. The first driving mechanism 212 is controllably connected to the control unit. The first driving mechanism 212 is installed inside a support leg of the unassembled inner cylinder conveyor line bracket 211. The first driving mechanism 212 drives the first roller 215 to rotate, and the first roller 215 drives the first conveyor belt 213 sleeved thereon to transmit. The first idler 214 is installed below the first conveyor belt 213. During operation, the unassembled inner cylinders are sequentially conveyed by the first conveyor belt 213.

[0059] Combined Figure 3 And Figure 4 As shown, the inner cylinder handling robot assembly 220 is selected to have a six-degree-of-freedom movable structure. For example, it includes a bottom base 221, a six-axis robotic arm 222 installed on the bottom base 221, and an inner cylinder gripper assembly 223 installed on the six-axis robotic arm 222. Specifically, the inner cylinder gripper assembly 223 includes a gripper 2231. A connecting plate Ⅰ2232 is installed at the bottom of the gripper 2231. A slider Ⅰ2233 and a slider Ⅱ2234 are installed on the connecting plate Ⅰ2232. The slider Ⅰ2233 and the slider Ⅱ2234 are slidably installed above a guide rail 2235. On one side of the guide rail 2235 away from the gripper 2231, a cylinder Ⅰ2236 and a cylinder Ⅱ2237 are provided. The cylinder Ⅰ2236 and the cylinder Ⅱ2237 are respectively connected to the connecting plate Ⅰ2232 through a first connecting rod 2238 and a connecting plate Ⅱ2239 to control the grasping range of the gripper 2231. That is, before the inner cylinder handling robot assembly 220 is used, first adjust the opening size of the gripper 2231 in the inner cylinder gripper assembly 223. Through the adjustment of the cylinder Ⅰ2236, the cylinder Ⅱ2237, the slider Ⅰ2233, and the slider Ⅱ2234, the jaws of the robot are scaled to a size suitable for the inner cylinder to grasp inner cylinders of different sizes.

[0060] Combined Figure 5 As shown, the bearing loading component 230 of the automatic grasping bearing oil seal die-casting production line includes a first truss mechanism 231 and a first grasping mechanism 232. The first grasping mechanism 232 is installed on the first truss mechanism 231. The bearing bracket 240 is located directly below the first grasping mechanism 232. Optionally, the bearing bracket 240 can be directly fixed on the first truss mechanism 231 to facilitate the operation of the first grasping mechanism 232.

[0061] As Figure 6 And Figure 7As shown, the first truss mechanism 231 includes guide rail I 2311, guide rail II 2312, guide rail III 2133, slide table I 2314 and slide table II 2315, motor I 2316, motor II 2317 and suction cup 2318; slide table I 2134 moves on guide rail I 2311 along a conveying direction perpendicular to the unpressed inner tube conveying line 210; guide rail II 2312 is installed on slide table I 2134, motor I 2136 and slide table II 2135 are installed on the guide rail II 2312; guide rail III 2133 is installed on slide table II 2135, motor II 2137 and suction cup 2138 are installed on guide rail III 2133; the first grasping mechanism 232 is installed below the suction cup 2138. The first grasping mechanism 232 includes a first cylinder 2321, a second cylinder 2322, a clamping claw I 2323, a clamping claw II 2324, a second connecting rod 2325, a first connecting plate 2326 and a right-angle connecting plate 2327; the second connecting rod 2325 and the right-angle connecting plate 2327 are installed on the first connecting plate 2326, and the first cylinder 2321 and the second cylinder 2322 are respectively arranged on two right-angle sides of the right-angle connecting plate 2327; the clamping claw 2323 and the clamping claw II 2324 are installed below the first cylinder 2321 and the second cylinder 2322, and the clamping direction of the clamping claw I 2323 and the clamping claw II 2324 is at a 90° angle, and they are respectively used to clamp the large bearing and the small bearing on the bearing bracket 240. Optionally, in order to realize the multi-layer arrangement and use of bearings, the first truss mechanism 231 can also adopt a six-degree-of-freedom structure.

[0062] Combination Figure 9 As shown, the pressed inner tube conveying assembly 280 includes a pressed inner tube conveying line support 281, a second driving mechanism 282, a second conveyor belt 283, a second roller 284 and a second roller 285 assembled on the pressed inner tube conveying line support 281, wherein the second driving mechanism 282 is controlled and connected to the control unit; during assembly, the second driving mechanism 282 is installed on the inner side of a supporting leg of the pressed inner tube conveying line support 281, the second driving mechanism 282 drives the second roller 285 to rotate, the second roller 285 drives the second conveyor belt 283 sleeved thereon to transmit, and the second roller 284 is installed below the second conveyor belt 283. The product bearings assembled on the production line are conveyed and collected by the second conveyor belt 283.

[0063] Combination Figure 10 As shown, the oil seal feeding assembly 260 includes a second truss mechanism 261, a second grabbing mechanism 262 installed on the second truss mechanism 261, and the bearing oil seal bracket 290 is installed directly below the second grabbing mechanism 262. Specifically, as Figure 11As shown in the figure, the second truss mechanism 261 includes a guide rail Ⅳ 2611, a guide rail Ⅴ 2612, a guide rail Ⅵ 2613, a slide table Ⅲ 2614 and a slide table Ⅳ 2615, a motor Ⅲ 2616 and a motor Ⅳ 2617; the slide table Ⅲ 2614 moves on the guide rail Ⅳ 2611 along a direction perpendicular to the conveying direction of the unassembled inner cylinder conveying line 210; the guide rail Ⅴ 2612 is installed on the slide table Ⅲ 2614, and the motor Ⅲ 2616 and the slide table Ⅳ 2615 are installed on the guide rail Ⅴ 2612; the guide rail Ⅵ 2613 is installed on the slide table Ⅳ 2615, and the motor Ⅳ 2617 and the second grasping mechanism 262 are installed on the guide rail Ⅵ 2613. As Figure 12 shown in the figure, the second grasping mechanism 262 includes a third cylinder 2621, a jaw Ⅲ 2622, a third connecting rod 2623 and a second connecting plate 2624; when connecting, the third connecting rod 2623 is installed on the guide rail Ⅵ 2613, one end of the third cylinder 2621 is installed on the second connecting plate 2624, and the other end is connected to the third connecting rod 2623, and the jaw Ⅲ 2622 is installed on the third cylinder 2621, and the jaw Ⅲ 2622 is used to grasp the bearing oil seal. The bearing oil seals on the bearing oil seal bracket 290 can be designed in multiple layers, and the second grasping mechanism 262 can respectively obtain the bearing oil seals at different layer positions by moving on the second truss mechanism 261.

[0064] Combined with Figure 8 and Figure 13 shown in the figure, in addition to the first pressing table 251, the die-cast bearing assembly 250 further includes a bearing die-casting mechanism 252, and the bearing die-casting mechanism 252 is controllably connected to the control unit so that the control unit controls the bearing die-casting mechanism 252 to perform die-casting; in addition to the second pressing table 2701, the oil seal pressing assembly 270 further includes an oil seal die-casting mechanism 2702, and the oil seal die-casting mechanism 2702 is controllably connected to the control unit so that the control unit controls the oil seal die-casting mechanism 2702 to perform die-casting.

[0065] In the automatic grasping bearing oil seal die-casting production line disclosed in the above embodiments, the working process is as follows: the first grasping mechanism 232 in the bearing feeding assembly 230 grasps the small bearing on the bearing bracket 240 through the jaw 2321 and places it on the first pressing table 251 of the die-cast bearing assembly 250; subsequently, the inner cylinder gripper assembly 223 of the inner cylinder handling robot assembly 220 grasps the unassembled inner cylinder from the unassembled inner cylinder conveying line 210; next, the jaw Ⅱ 2324 in the bearing feeding assembly 230 grasps the large bearing on the bearing bracket 240 and places it on the first pressing table 251 of the die-cast bearing assembly 250; when the large and small bearings and the inner cylinder have reached the positions, the bearing die-casting mechanism 252 of the die-cast bearing assembly 250 performs die-casting; at this time, the die-casting of the bearing stage is completed using the inner cylinder.

[0066] Then, the inner cylinder gripper assembly 223 of the inner cylinder handling robot assembly 220 grabs the die-cast bearing inner cylinder and places it on the second pressing platform 2701 of the oil seal pressing assembly 270; the gripping mechanism 262 on the oil seal feeding assembly 260 grabs the bearing oil seal placed on the bearing oil seal bracket 290, and the jaw III 2622 on the oil seal feeding assembly 260 adjusts its size by the third cylinder 2621 to grab the bearing oil seal and place it on the second pressing platform 2701; again, the second pressing platform 2701 of the oil seal pressing assembly 270 performs oil seal die-casting on the large and small bearings that have been die-cast; finally, the inner cylinder gripper assembly 223 of the inner cylinder handling robot assembly 220 flips the bearing with the die-cast large and small bearings and oil seal, that is, the product bearing, and places it on the inner cylinder press-fitting conveying assembly 280. To facilitate the continuous operation of the production line, during the die-casting process of the product bearing, the front-side inner cylinder non-press-fitting conveying line 210, the inner cylinder handling robot assembly 220, the bearing feeding assembly 230, the bearing bracket 240, and the die-cast bearing assembly 250 continuously perform bearing die-casting, enabling the production line to operate continuously and form a virtuous cycle, saving assembly time and improving the efficiency of the production line.

[0067] Another embodiment of the present invention provides a method for using the above automatic bearing oil seal die-casting production line, and the method includes the following steps controlled by a control unit:

[0068] 1) The first gripping mechanism 232 of the bearing feeding assembly 230 grabs the small bearing on the bearing bracket 240 and places it on the first pressing platform 251 of the die-cast bearing assembly 250;

[0069] 2) Under the normal conveying state of the conveying line of the inner cylinder non-press-fitting conveying line, adjust the inner cylinder gripper assembly 223 of the inner cylinder handling robot assembly 220 to fit the size of the non-press-fitted inner cylinder, and grab the inner cylinder and place it at the corresponding position of the small bearing on the first pressing platform 251;

[0070] 3) The first gripping mechanism 232 of the bearing feeding assembly 230 grabs the large bearing on the bearing bracket 240 and places it on the inner cylinder on the first pressing platform 251, and it is die-cast by the bearing die-casting mechanism 252 to obtain a die-cast bearing inner cylinder;

[0071] 4) The inner cylinder gripper assembly 223 of the inner cylinder handling robot assembly 220 grabs the die-cast bearing inner cylinder on the first pressing platform 251 and places it on the second pressing platform 2701 of the oil seal pressing assembly 270;

[0072] 5) The second gripping mechanism 262 of the oil seal feeding assembly 260 grabs the bearing oil seal on the bearing oil seal bracket 290 and places it on the die-cast bearing inner cylinder on the second pressing platform 2701; meanwhile, the bearing feeding assembly 230 and the inner cylinder handling robot assembly 220 repeat steps 1) to 3);

[0073] 6) The oil seal die-casting mechanism 2702 performs die-casting to obtain the product bearing;

[0074] 7) The inner cylinder gripper assembly 223 of the inner cylinder handling robot assembly 220 grabs the product bearing, flips it, and places it on the inner cylinder conveying assembly 280 that has been press-fitted;

[0075] 8) Repeat steps 4) to 7), and the die-casting production line continues to produce.

[0076] When the automatic bearing oil seal die-casting production line of the present invention is used by adopting the above, it can not only perform multi-layer automatic and precise grasping, improve the automation effect of the production line, but also effectively reduce the number of times and time for manual placement of bearings and bearing oil seals, reduce movement losses, and fully improve the die-casting efficiency of the production line.

[0077] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope defined in the claims.

Claims

1. An automatic bearing oil seal die-casting production line, characterized in that It includes an un-pressed inner cylinder conveying line (210), an inner cylinder handling robot assembly (220), a bearing feeding assembly (230), a bearing bracket (240), a die-cast bearing assembly (250), an oil seal feeding assembly (260), an oil seal pressing assembly (270), a pressed inner cylinder conveying assembly (280), a bearing oil seal bracket (290) and a control unit, and the control unit is controllably connected to the inner cylinder handling robot assembly (220), the bearing feeding assembly (230), the die-cast bearing assembly (250), the oil seal feeding assembly (260) and the oil seal pressing assembly (270); The inner cylinder handling robot assembly (220) is arranged in the conveying direction of the un-pressed inner cylinder conveying line (210), the bearing bracket (240) is arranged on one side of the un-pressed inner cylinder conveying line (210), and its extending direction is perpendicular to the conveying direction of the un-pressed inner cylinder conveying line (210); the bearing feeding assembly (230) and the die-cast bearing assembly (250) are respectively arranged on both sides of the bearing bracket (240) parallel to its extending direction; the un-pressed inner cylinder conveying line (210) is used for conveying a plurality of un-pressed inner cylinders, and the bearing bracket (240) is used for storing a plurality of large bearings and small bearings; the control unit controls the inner cylinder handling robot assembly (220) to pick up an un-pressed inner cylinder and place it on the first pressing table (251) of the die-cast bearing assembly (250), controls the bearing feeding assembly (230) to pick up a small bearing and a large bearing in sequence and place them on the first pressing table (251), and controls the die-cast bearing assembly (250) to die-cast the small bearing, the un-pressed inner cylinder and the large bearing placed on the first pressing table (251) in sequence to obtain a die-cast bearing inner cylinder; The pressed oil seal assembly (270) is arranged on one side of the inner cylinder handling robot assembly (220) away from the un-pressed inner cylinder conveying line (210), and the pressed oil seal assembly (270), the die-cast bearing assembly (250) and the un-pressed inner cylinder conveying line (210) are arranged around the circumference of the inner cylinder handling robot assembly (220); the oil seal feeding assembly (260) is located between the die-cast bearing assembly (250) and the pressed oil seal assembly (270), and the bearing oil seal bracket (290) is arranged on the oil seal feeding assembly (260); the pressed inner cylinder conveying assembly (280) is arranged on one side of the pressed oil seal assembly (270) away from the oil seal feeding assembly (260); the bearing oil seal bracket (290) is used for storing a plurality of bearing oil seals; the control unit controls the inner cylinder handling robot assembly (220) to pick up the die-cast bearing inner cylinder on the first pressing table (251) and turn it over and place it on the second pressing table (2701) of the pressed oil seal assembly (270), controls the oil seal feeding assembly (260) to pick up the bearing oil seal and place it on the second pressing table (2701), and controls the pressed oil seal assembly (270) to press the die-cast bearing inner cylinder and the bearing oil seal placed in sequence on the second pressing table (2701) to obtain the product bearing; the control unit controls the inner cylinder handling robot assembly (220) to pick up the product bearing on the second pressing table (2701) and turn it over and place it on the pressed inner cylinder conveying assembly (280) to complete the die-casting production; The bearing feeding assembly (230) includes a first truss mechanism (231) and a first grasping mechanism (232); the first grasping mechanism (232) is installed on the first truss mechanism (231), and the bearing bracket (240) is located directly below the first grasping mechanism (232); The first truss mechanism (231) includes a guide rail I (2311), a guide rail II (2312), a guide rail III (2133), a sliding table I (2314) and a sliding table II (2315), a motor I (2316), a motor II (2317) and a suction cup (2318); the sliding table I (2134) moves along the guide rail I (2311) perpendicular to the conveying direction of the un-pressed inner cylinder conveying line (210); the guide rail II (2312) is installed on the sliding table I (2134), and the motor I (2136) and the sliding table II (2135) are installed on the guide rail II (2312); the guide rail III (2133) is installed on the sliding table II (2135), and the motor II (2137) and the suction cup (2138) are installed on the guide rail III (2133); the first grasping mechanism (232) is installed below the suction cup (2138); The first grasping mechanism (232) includes a first cylinder (2321), a second cylinder (2322), jaw I (2323), jaw II (2324), a second connecting rod (2325), a first connecting disk (2326), and a right-angle connecting disk (2327); the first connecting disk (2326) is equipped with the second connecting rod (2325) and the right-angle connecting disk (2327), and the first cylinder (2321) and the second cylinder (2322) are respectively arranged on two right-angle sides of the right-angle connecting disk (2327); the first cylinder (2321) and the second cylinder (2322) are provided with jaw I (2323) and jaw II (2324) below, and the clamping directions of jaw I (2323) and jaw II (2324) form a 90° angle, which are respectively used for clamping the large bearing and the small bearing on the bearing bracket (240). The oil seal feeding assembly (260) includes a second truss mechanism (261) and a second grasping mechanism (262), the second grasping mechanism (262) is installed on the second truss mechanism (261), and the bearing oil seal bracket (290) is installed directly below the second grasping mechanism (262). The second truss mechanism (261) includes a guide rail IV (2611), a guide rail V (2612), a guide rail VI (2613), a sliding table III (2614), a sliding table IV (2615), a motor III (2616), and a motor IV (2617); the sliding table III (2614) moves on the guide rail IV (2611) along a direction perpendicular to the conveying direction of the un-pressed inner cylinder conveying line (210); the guide rail V (2612) is installed on the sliding table III (2614), and the motor III (2616) and the sliding table IV (2615) are installed on the guide rail V (2612); the guide rail VI (2613) is installed on the sliding table IV (2615), and the motor IV (2617) and the second grasping mechanism (262) are installed on the guide rail VI (2613). The second grasping mechanism (262) includes a third cylinder (2621), jaw III (2622), a third connecting rod (2623), and a second connecting disk (2624); the third connecting rod (2623) is installed on the guide rail VI (2613), one end of the third cylinder (2621) is installed on the second connecting disk (2624), and the other end is connected to the third connecting rod (2623), and jaw III (2622) is installed on the third cylinder (2621), and jaw III (2622) is used for grasping the bearing oil seal.

2. The automatic bearing oil seal die-casting production line according to claim 1, wherein The unassembled inner cylinder conveying line (210) includes an unassembled inner cylinder conveying line bracket (211), a first driving mechanism (212), a first conveyor belt (213), a first roller (214) and a first drum (215) which are assembled on the unassembled inner cylinder conveying line bracket (211). The first driving mechanism (212) is controllably connected to the control unit. The first driving mechanism (212) is installed inside a support leg of the unassembled inner cylinder conveying line bracket (211). The first driving mechanism (212) drives the first drum (215) to rotate, and the first drum (215) drives the first conveyor belt (213) sleeved thereon to transmit. The first roller (214) is installed below the first conveyor belt (213).

3. The automatic bearing oil seal die-casting production line according to claim 1, characterized in that, The inner cylinder handling robot assembly (220) includes a bottom base (221), a six-axis robotic arm (222), and an inner cylinder gripper assembly (223). The six-axis robotic arm (222) is installed on the bottom base (221), and the inner cylinder gripper assembly (223) is installed on the six-axis robotic arm (222). The inner cylinder gripper assembly (223) includes a gripper hand (2231). A connecting plate I (2232) is installed at the bottom of the gripper hand (2231). A slider I (2233) and a slider II (2234) are installed on the connecting plate I (2232). The slider I (2233) and the slider II (2234) are slidably installed above the guide rail (2235). A cylinder I (2236) and a cylinder II (2237) are arranged on one side of the guide rail (2235) away from the gripper hand (2231). The cylinder I (2236) and the cylinder II (2237) are respectively connected to the connecting plate I (2232) through a first connecting rod (2238) and a connecting plate II (2239) to control the grasping range of the gripper hand (2231).

4. The automatic bearing oil seal die-casting production line according to claim 1, characterized in that, The assembled inner cylinder conveying assembly (280) includes an assembled inner cylinder conveying line bracket (281), a second driving mechanism (282), a second conveyor belt (283), a second roller (284) and a second drum (285) which are assembled on the assembled inner cylinder conveying line bracket (281). The second driving mechanism (282) is controllably connected to the control unit. The second driving mechanism (282) is installed inside a support leg of the assembled inner cylinder conveying line bracket (281). The second driving mechanism (282) drives the second drum (285) to rotate, and the second drum (285) drives the second conveyor belt (283) sleeved thereon to transmit. The second roller (284) is installed below the second conveyor belt (283).

5. The automatic bearing oil seal die-casting production line according to claim 1, wherein The die-casting bearing assembly (250) further includes a bearing die-casting mechanism (252), and the bearing die-casting mechanism (252) is controllably connected to the control unit. The oil seal pressing assembly (270) further includes an oil seal die-casting mechanism (2702), and the oil seal die-casting mechanism (2702) is controllably connected to the control unit.

6. A method for using an automatic bearing oil seal die-casting production line according to any one of claims 1-5, characterized in that, Including the following steps implemented under the control of a control unit: 1) The first grasping mechanism (232) of the bearing loading assembly (230) grasps the small bearing on the bearing bracket (240) and places it on the first pressing platform (251) of the die-cast bearing assembly (250); 2) Under the state where the conveying line of the inner cylinder conveying line without press-fitting is conveying normally, adjust the inner cylinder gripper assembly (223) of the inner cylinder handling robot assembly (220) to fit the size of the inner cylinder without press-fitting, and grasp the inner cylinder and place it at the corresponding position of the small bearing on the first pressing platform (251); 3) The first grasping mechanism (232) of the bearing loading assembly (230) grasps the large bearing on the bearing bracket (240) and places it on the inner cylinder on the first pressing platform (251), and is die-cast by the bearing die-casting mechanism (252) to obtain a die-cast bearing inner cylinder; 4) The inner cylinder gripper assembly (223) of the inner cylinder handling robot assembly (220) grasps the die-cast bearing inner cylinder on the first pressing platform (251) and places it on the second pressing platform (2701) of the oil seal pressing assembly (270); 5) The second grasping mechanism (262) of the oil seal loading assembly (260) grasps the bearing oil seal on the bearing oil seal bracket (290) and places it on the die-cast bearing inner cylinder on the second pressing platform (2701); meanwhile, the bearing loading assembly (230) and the inner cylinder handling robot assembly (220) repeat steps 1) to 3); 6) Die-cast by the oil seal die-casting mechanism (2702) to obtain a product bearing; 7) The inner cylinder gripper assembly (223) of the inner cylinder handling robot assembly (220) grasps the product bearing, flips it and places it on the inner cylinder conveying assembly (280) with press-fitting completed; 8) Repeat steps 4) to 7), and the die-casting production line continues to produce.

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