Universal joint shaft sleeve metal rubber piece automatic assembly equipment

Abstract

The utility model belongs to the field of universal joint production, concretely is a kind of metal rubber piece automatic assembly equipment for universal joint axle sleeve, including work bench, the top of work bench is slidably provided with top plate, and the sliding setting of work bench and top plate has assembly station, and the sliding setting of assembly station and top plate has down pressure plate, the upper end surface of assembly station is provided with multiple installation grooves, the upper end surface of each installation groove is provided with through-hole to the lower end surface of down pressure plate, the inside of each through-hole is provided with detachable mounting ring, the lower end surface of each mounting ring is annular and uniformly provided with multiple inclined extrusion plates, and the upper end surface of each through-hole is provided with buffer down pressure subassembly to the lower end surface of top plate.The utility model is provided with inclined extrusion plate and other components, so that the outer cylindrical surface of metal rubber piece is uniformly extruded in the process of vertical sliding of metal rubber piece when the equipment is assembled, the metal rubber piece slightly shrinks inward, so that it is quickly assembled into the inside of axle sleeve.

Description

Technical Field

[0001] This utility model belongs to the field of universal joint production technology, and in particular relates to an automatic assembly equipment for metal rubber parts for universal joint bushings. Background Technology

[0002] A universal joint is a joint-type mechanical device that can transmit torque and rotational motion from one shaft to another when the included angle remains constant or changes. It is mainly used for connecting steering shafts and drive shafts in automobiles, construction machinery, agricultural machinery, etc., to form universal joint steering devices or transmission devices. There are many types of universal joints, among which the rigid universal joint is widely used.

[0003] Patent application CN201310023420.7 discloses an automatic assembly equipment for metal rubber parts of universal joint bushings, including a directional screening mechanism, a slide rail, and a cylinder assembly. The directional screening mechanism and the cylinder assembly are connected by the slide rail. The directional screening mechanism includes a chassis, a conveying track, and a collection channel. This invention achieves directional selection of the metal rubber parts by installing a spirally rising track and a screening channel inside and outside the chassis holding the parts. By designing the screening channel as a curve that narrows from wide to narrow, it automatically performs screening by utilizing the different sizes of the two bottom surfaces of the metal rubber parts. A collection channel connected to the chassis is installed below the screening channel to facilitate the collection of metal rubber parts that have fallen due to incorrect orientation, thus enabling a second directional screening. The screened metal rubber parts are then conveyed to the next production line via cylinders and slide rails, reducing manual labor, improving production efficiency, and lowering labor costs.

[0004] Existing technologies facilitate the subsequent installation of metal-rubber components by screening them, but there are still shortcomings:

[0005] Firstly, when existing automatic bushing assembly equipment assembles metal rubber parts and bushings, the interference fit between the bushing and the metal rubber parts makes it difficult for the metal rubber parts to be assembled into the bushing, resulting in low overall assembly efficiency and affecting the overall bushing production efficiency.

[0006] Secondly, existing automated assembly equipment lacks a buffer mechanism when assembling metal parts, which makes it easy for metal rubber parts to be over-compressed when installed into the bushing, leading to deformation of the metal rubber parts and thus assembly failure. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this invention provides an automatic assembly device for metal-rubber parts used in universal joint bushings. Through the arrangement of components such as inclined extrusion plates, this invention enables the equipment to uniformly extrude force on the outer surface of the metal-rubber part during its vertical sliding motion, causing the part to slightly contract inwards and thus quickly assemble into the bushing.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic assembly device for metal rubber parts for universal joint bushings, comprising a worktable, a top plate slidably disposed above the worktable, an assembly platform slidably disposed between the worktable and the top plate, a lower pressure plate slidably disposed between the assembly platform and the top plate, a plurality of mounting grooves provided on the upper end surface of the assembly platform, a through hole provided above each mounting groove on the lower end surface of the lower pressure plate, a detachable mounting ring provided inside each through hole, a plurality of inclined extrusion plates uniformly disposed in a ring shape on the lower end surface of each mounting ring, and a buffer pressing assembly provided above each through hole on the lower end surface of the top plate.

[0009] Optionally, each of the through holes has a first annular groove on its inner circular surface, and a first snap-fit ​​ring is slidably disposed inside each of the first annular grooves. Each of the first snap-fit ​​rings is fixedly connected to the outer circular surface of the through hole. Each of the first annular grooves has a second annular groove on its inner circular surface, and a second snap-fit ​​ring is slidably disposed inside each of the second annular grooves. The second snap-fit ​​rings are connected to the second annular grooves by bolts.

[0010] Optionally, the buffer pressing assembly includes a first sliding cylinder disposed on the lower end face of the top plate, a second sliding cylinder being slidably engaged with the outside of the first sliding cylinder, a support frame being disposed at the lower end face of the second sliding cylinder, and a first spring being disposed inside the second sliding cylinder between the first sliding cylinder and the support frame.

[0011] Optionally, each of the second sliding cylinders has multiple anti-slip protrusions at its lower port.

[0012] Optionally, a support cylinder is provided on the lower end face of the lower pressure plate, and a telescopic rod is provided on the lower end face of the top plate. The lower end of the telescopic rod passes through the lower pressure plate and is slidably connected to the support cylinder. A second spring is provided on the outside of the telescopic rod between the top plate and the lower pressure plate.

[0013] Optionally, a discharge plate is slidably provided on the inner bottom surface of each mounting slot, and a connecting support rod is provided below the upper end surface of each discharge plate on the workbench. The top of each connecting support rod passes through the assembly table and is fixedly connected to the lower end surface of its adjacent discharge plate.

[0014] Optionally, a buffer pad is provided on the upper surface of the workbench between the workbench and the assembly table.

[0015] Optionally, each of the first sliding cylinders is provided with a vent hole communicating with the first sliding cylinder on the upper end surface of the top plate.

[0016] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0017] (1) By setting up components such as mounting ring, inclined extrusion plate and second sliding cylinder, the present invention enables the equipment to uniformly extrude the outer surface of the metal rubber part by setting up multiple inclined extrusion plates around it during the vertical sliding process of the metal rubber part, so that the metal rubber part shrinks slightly inward, thereby quickly assembling into the bushing, effectively improving the assembly efficiency and the success rate of the device.

[0018] (2) By setting up components such as support cylinder, telescopic rod and second spring, the present invention enables the equipment to form elastic support between the lower pressure plate and buffer pad by the elastic tension of the second spring itself when assembling metal rubber parts, thereby buffering multiple metal rubber parts when they are installed into the bushing, thus effectively forming assembly protection for metal rubber parts and improving the assembly success rate. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is the front view of the present invention;

[0021] Figure 3 for Figure 2 A three-dimensional cross-sectional view at point AA;

[0022] Figure 4 for Figure 3 Enlarged view of a section at point B;

[0023] Figure 5 for Figure 3 A magnified view of a section at point C.

[0024] Figure 6 for Figure 3 A magnified view of a section at point D.

[0025] In the diagram: workbench 10, top plate 11, assembly table 12, lower pressure plate 13, slide bar 14, mounting groove 15, discharge plate 16, connecting support rod 17, through hole 18, mounting ring 19, first ring groove 20, first snap ring 21, second ring groove 22, second snap ring 23, inclined extrusion plate 24, first sliding cylinder 25, second sliding cylinder 26, support frame 27, first spring 28, vent hole 29, support cylinder 30, telescopic rod 31, second spring 32, anti-slip protrusion 33, first push cylinder 34, second push cylinder 35, buffer pad 36. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1:

[0027] like Figure 1 , Figure 2 and Figure 3As shown, an automatic assembly device for metal-rubber parts of universal joint bushings includes a worktable 10, a top plate 11 slidably disposed above the worktable 10, and an assembly table 12 slidably disposed between the worktable 10 and the top plate 11. The sliding arrangement of the assembly table 12 facilitates the rapid installation and unloading of bushings inside mounting slots 15. A lower pressure plate 13 slidably disposed between the assembly table 12 and the top plate 11. Multiple mounting slots 15 are provided on the upper surface of the assembly table 12. The interior of each mounting slot 15 is used to place the bushing. Above each mounting slot 15... Each of the lower end faces of the pressure plate 13 has a through hole 18, and each through hole 18 has a detachable mounting ring 19 inside. Each mounting ring 19 has multiple inclined extrusion plates 24 evenly arranged in a ring shape on its lower end face. These inclined extrusion plates 24 are all inclined inwards, so that after the metal rubber sleeve is placed inside the mounting ring 19, under the downward pressure of the buffer pressure assembly, the metal rubber part is subjected to the downward pressure from the output end of the buffer pressure assembly, causing the metal rubber part to move inside the mounting ring 19. As the metal rubber part moves downwards, the metal rubber... The component is uniformly squeezed inward by multiple inclined extrusion plates 24, so that the overall diameter of the metal rubber sleeve is slightly reduced after being squeezed by multiple inclined extrusion plates 24, making it easier to enter the bushing and making the assembly of the metal rubber component faster. A buffer pressing component is provided above each through hole 18 on the lower end face of the top plate 11. A first push cylinder 34 is provided on the lower end face of the worktable 10 outside the assembly table 12. The output end of the first push cylinder 34 passes through the worktable 10 and is fixedly connected to the lower end face of the top plate 11. The first push cylinder 34 refers to a component with... A push cylinder with a certain pushing pressure and an adjustable stroke capability at the output end, such as an electric push cylinder or a hydraulic push cylinder, is used. The output end of the first push cylinder 34 drives the top plate 11 to slide vertically, thereby driving the lower pressure plate 13 to squeeze the assembly table 12 and other components, thus forming the assembly between the metal rubber parts and the bushing. On one side of the first push cylinder 34, multiple slide rods 14 are provided on the upper end surface of the worktable 10. Each slide rod 14 is slidably connected to the top plate 11. The arrangement of multiple slide rods 14 forms a guide for the vertical sliding of the top plate 11, improving the accuracy of equipment assembly.

[0028] Furthermore, such as Figure 4As shown, each through hole 18 has a first annular groove 20 on its inner circular surface, and a first locking ring 21 is slidably disposed inside each first annular groove 20. The arrangement of the first annular groove 20 and the first locking ring 21 can limit the mounting ring 19, ensuring that the mounting ring 19 is stably locked inside the through hole 18 when the buffer pressing assembly presses downward on the metal rubber sleeve inside the mounting ring 19. Each first locking ring 21 is fixedly connected to the outer circular surface of the through hole 18, and each first annular groove 20 has a second annular groove 22 on its inner circular surface. Each second annular groove 22 has a second locking ring 23 slidably disposed inside it. The second locking ring 23 is connected to the second annular groove 22 by bolts. The arrangement of the second annular groove 22 and the second locking ring 23 can form a downward pressing and fixing of the first locking ring 21 inside the first annular groove 20. Therefore, when the mounting ring 19 or multiple inclined extrusion plates 24 are damaged and it is necessary to replace the mounting ring 19 and the inclined extrusion plates 24 as a whole, only the second locking ring 23 needs to be disassembled to remove the mounting ring 19, thereby improving the practicality of the equipment.

[0029] Furthermore, such as Figure 1 and Figure 3 As shown, the buffer pressing assembly includes a first sliding cylinder 25 disposed on the lower end face of the top plate 11. A second sliding cylinder 26 is slidably engaged with the outside of the first sliding cylinder 25. A support frame 27 is disposed on the lower end face of the second sliding cylinder 26. A first spring 28 is disposed inside the second sliding cylinder 26 between the first sliding cylinder 25 and the support frame 27. Through the elastic tension of the first spring 28 and the sliding engagement of the first sliding cylinder 25 and the second sliding cylinder 26, under the downward sliding action of the top plate 11, multiple first sliding cylinders 25 and second sliding cylinders 26 are driven to move vertically downward. After the second sliding cylinder 26 moves downward a certain distance, its lower end face will abut against the upper end face of the mounting ring 19. As the second sliding cylinder 26 moves vertically downward under the action of the top plate 11 and the first sliding cylinder 25, the second sliding cylinder 26 causes the metal wire rubber sleeve to move downward. In the above process, the first spring 28 plays an elastic buffering role between the first sliding cylinder 25 and the second sliding cylinder 26, thereby making the deformation of the metal rubber sleeve sliding vertically inside the mounting ring 19 more stable.

[0030] Furthermore, such as Figure 6 As shown, each of the lower ends of the second sliding cylinder 26 is provided with multiple anti-slip protrusions 33. The provision of multiple anti-slip protrusions 33 can improve the roughness of the lower end surface of the second sliding cylinder 26, thereby increasing the friction between the lower end surface of the second sliding cylinder 26 and the upper end surface of the metal rubber part when the second sliding cylinder 26 moves downward to squeeze the metal rubber part, thus effectively improving the stability of the second sliding cylinder 26 when moving downward to squeeze the metal rubber sleeve and during assembly.

[0031] Furthermore, as shown in Figures 1 and 2, a support cylinder 30 is provided on the lower end face of the lower pressure plate 13. The height of the support cylinder 30 is equal to the vertical height of the inclined extrusion plate 24. This ensures that when the metal rubber sleeve is being fitted, the distance between the assembly table 12 and the lower pressure plate 13 is equal to the height of the inclined extrusion plate 24. Consequently, after the lower end of the inclined extrusion plate 24 abuts against the upper end face of the bushing, the second sliding cylinder 26 and other components can extrude and fit the metal rubber sleeve into the bushing. A telescopic rod 31 is provided on the lower end face of the top plate 11. The lower end of the telescopic rod 31 passes through the lower pressure plate 13. The telescopic rod 31, which is slidably connected to the support cylinder 30, can guide the sliding between the top plate 11 and the lower pressure plate 13, ensuring vertical sliding between the top plate 11 and the lower pressure plate 13. A second spring 32 is provided on the outside of the telescopic rod 31 between the top plate 11 and the lower pressure plate 13. Through the elastic tension of the second spring 32 itself, it can buffer the top plate 11 and the lower pressure plate 13. At the same time, it can also open the top plate 11 and the lower pressure plate 13 in time after assembly, so as to facilitate the replenishment of the metal rubber sleeve inside the mounting ring 19.

[0032] Furthermore, such as Figure 3 and Figure 5 As shown, each mounting slot 15 has a sliding discharge plate 16 on its inner bottom surface. Each discharge plate 16 has a connecting support rod 17 on its upper surface of the workbench 10. The top of each connecting support rod 17 passes through the assembly table 12 and is fixedly connected to the lower surface of its adjacent discharge plate 16. A second push cylinder 35 is provided on the lower surface of the workbench 10. The output end of the second push cylinder 35 passes through the workbench 10 and is fixedly connected to the lower surface of the assembly table 12. The second push cylinder 35 refers to a push cylinder with a certain pushing pressure and an adjustable stroke capability at its output end, such as an electric push cylinder or a hydraulic push cylinder. The output end of the second push cylinder 35 drives the assembly table 12 to move vertically. After assembly, the output end of the second push cylinder 35 drives the assembly table 12 to move vertically downward. Under the support of the discharge plate 16 and the connecting support rod 17, the bushing inside the mounting slot 15 can be discharged in time.

[0033] Furthermore, such as Figure 3 As shown, a buffer pad 36 is provided on the upper surface of the workbench 10 between the workbench 10 and the assembly table 12. The buffer pad 36 can effectively reduce the collision between the assembly table 12 and the workbench 10, thereby effectively improving the service life of the equipment and reducing the noise when the equipment is working.

[0034] Furthermore, such as Figure 3As shown, each of the first sliding cylinders 25 is provided with a vent hole 29 on the upper end face of the top plate 11, which communicates with the first sliding cylinder 25. The vent hole 29 can timely discharge the air stored inside the second sliding cylinder 26 when the metal rubber part is squeezed into the bushing, thereby making the assembly of the second sliding cylinder 26 with the metal rubber part more stable.

[0035] In this solution, the detection and control of the specific distance of multiple first push cylinders, second push cylinders, motors, and each plate during movement can all be achieved by setting controllers and sensors or control circuits on the outside of these driving components in actual production. These are all existing technologies and are not technical problems that this solution needs to solve, so this solution will not elaborate on them.

[0036] First, the bushing is placed inside the mounting groove 15, and the metal rubber component is placed inside the mounting ring 19. The first push cylinder 34 is activated, and the output end of the first push cylinder 34 drives the top plate 11 to move vertically downward. The top plate 11 drives multiple first sliding cylinders 25 and other components to move vertically downward until multiple inclined extrusion plates 24 abut against the upper end face of the bushing. Then, the output end of the first push cylinder 34 is contracted, so that the lower end of the second sliding cylinder 26 forms a downward pressure on the metal rubber component inside the mounting ring 19, so that the metal rubber component is slightly squeezed and contracted by multiple inclined extrusion plates 24, thereby slowly moving into the bushing.

[0037] Then, the first push cylinder 34 is activated, causing the output end of the first push cylinder 34 to extend, thereby driving the top plate 11 and other components to move vertically upward, and then the metal and rubber parts inside the multiple mounting rings 19 are replenished.

[0038] Finally, the second push cylinder 35 is activated. The output end of the second push cylinder 35 drives the assembly table 12 to move vertically downward. Under the action of the connecting support rod 17 and the discharge plate 16, it forms a support for the metal rubber part, so that the metal rubber part is removed from the inside of the mounting groove 15, and the bushing is unloaded.

[0039] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0040] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0041] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. An automatic assembly equipment for metal-rubber parts for universal joint bushings, comprising a worktable (10), wherein a top plate (11) is slidably disposed above the worktable (10), characterized in that, An assembly table (12) is slidably disposed between the workbench (10) and the top plate (11). A lower pressure plate (13) is slidably disposed between the assembly table (12) and the top plate (11). The upper end face of the assembly table (12) is provided with multiple mounting grooves (15). Each mounting groove (15) is provided with a through hole (18) above the lower end face of the lower pressure plate (13). Each through hole (18) is provided with a detachable mounting ring (19). Each mounting ring (19) is provided with multiple inclined extrusion plates (24) evenly arranged in a ring shape on the lower end face of the top plate (11). A buffer pressing component is provided above each through hole (18) above the lower end face of the top plate (11).

2. The automatic assembly equipment for metal-rubber parts of universal joint bushings according to claim 1, characterized in that, Each of the through holes (18) has a first annular groove (20) on its inner circular surface. A first snap ring (21) is slidably disposed inside each of the first annular grooves (20). Each first snap ring (21) is fixedly connected to the outer circular surface of the through hole (18). Each of the first annular grooves (20) has a second annular groove (22) on its inner circular surface. A second snap ring (23) is slidably disposed inside each of the second annular grooves (22). The second snap ring (23) is connected to the second annular groove (22) by bolts.

3. The automatic assembly equipment for metal-rubber parts of universal joint bushings according to claim 1, characterized in that, The buffer pressing assembly includes a first sliding cylinder (25) disposed on the lower end face of the top plate (11), a second sliding cylinder (26) is slidably snapped onto the outside of the first sliding cylinder (25), a support frame (27) is disposed on the lower end face of the second sliding cylinder (26), and a first spring (28) is disposed inside the second sliding cylinder (26) between the first sliding cylinder (25) and the support frame (27).

4. The automatic assembly equipment for metal-rubber parts of universal joint bushings according to claim 3, characterized in that, Each of the second sliding cylinders (26) has multiple anti-slip protrusions (33) at its lower port.

5. The automatic assembly equipment for metal-rubber parts of universal joint bushings according to claim 1, characterized in that, The lower end face of the lower pressure plate (13) is provided with a support cylinder (30), and the lower end face of the top plate (11) is provided with a telescopic rod (31). The lower end of the telescopic rod (31) passes through the lower pressure plate (13) and is slidably connected to the support cylinder (30). A second spring (32) is provided on the outside of the telescopic rod (31) between the top plate (11) and the lower pressure plate (13).

6. The automatic assembly equipment for metal-rubber parts of universal joint bushings according to claim 1, characterized in that, Each of the mounting slots (15) has a slidably disposed discharge plate (16) on its inner bottom surface. Each of the discharge plates (16) has a connecting support rod (17) disposed below the upper end surface of the workbench (10). The top of each connecting support rod (17) passes through the assembly table (12) and is fixedly connected to the lower end surface of its adjacent discharge plate (16).

7. An automatic assembly equipment for metal-rubber parts for universal joint bushings according to claim 6, characterized in that, A buffer pad (36) is provided on the upper surface of the workbench (10) between the workbench (10) and the assembly table (12).

8. An automatic assembly equipment for metal-rubber parts of universal joint bushings according to claim 3, characterized in that, Each of the first sliding cylinders (25) has a vent hole (29) on the upper surface of the top plate (11) that communicates with the first sliding cylinder (25).

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