An automatic press-fitting mechanism suitable for assembling shaft parts in production lines

Abstract

The present invention discloses an automatic press-fitting mechanism suitable for assembling shaft parts in an assembly line, comprising: a push-down device, which is arranged on one side of the output channel of a vibrating plate loader, and is used to push down the oil-containing bearing on the output channel of the vibrating plate loader; a conveying device, which is arranged on the other side of the output channel of the vibrating plate loader, and is used to convey the pushed-down oil-containing bearing, and the conveying device is provided with two discharge ports for a pair of oil-containing bearings to be output simultaneously; a lifting device, which is arranged corresponding to the two discharge ports, and is used to carry and lift a pair of oil-containing bearings output simultaneously; an assembly device, which is arranged above the lifting device and is located on the assembly line platform panel, and the assembly device includes a first punching device, a target cylindrical part, and a second punching device located on the same horizontal axis. The present invention has the functions of automatic loading and can automatically press-fit two oil-containing bearings into the target cylindrical part at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic assembly, and more specifically, to an automatic press-fitting mechanism suitable for assembling shaft parts in an assembly line. Background Art

[0002] Advanced productivity has always been an important role that people pursue. In the machinery manufacturing industry, advanced design, processing and assembly technology are the goals that engineers pursue. Assembly, as an important link in the machinery manufacturing process, has a significant impact on product quality, cost and production efficiency. Researching and developing new assembly technology and significantly improving assembly quality and assembly production efficiency are important tasks of machinery manufacturing engineering.

[0003] In the existing assembly technology, the vertical press-fitting method is generally used, and the upper and lower adapter workpieces are set on the equipment to assemble the oil-containing bearing. However, in some automated assembly processes of assembly lines, the vertical press-fitting method is often not applicable. Therefore, this article invents an automated assembly mechanism based on horizontal press-fitting. Summary of the invention

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0005] Another object of the present invention is to provide an automatic pressing mechanism suitable for the assembly of shaft parts in an assembly line. The assembly device and the pushing device, the conveying device, and the lifting device are divided into upper and lower layers, so that the operation of the assembly device and the operation of other devices can be partitioned to avoid mutual influence of the operations and save the space occupied by the equipment; the assembly device is horizontally arranged to complete the horizontal pressing process and meet the assembly requirements of certain specific parts; a first stamping device and a second stamping device are arranged to complete the assembly of two oil-containing bearings at the same time, without the need for two assembly operations, saving assembly time and improving assembly efficiency and assembly effect.

[0006] In order to achieve these purposes and other advantages according to the present invention, an automatic press-fitting mechanism suitable for assembling shaft parts in an assembly line is provided, comprising:

[0007] A pushing device, which is arranged on one side of the output channel of the vibrating plate loader and is used to push down the oil-containing bearing on the output channel of the vibrating plate loader;

[0008] A conveying device is arranged on the other side of the output channel of the vibrating plate feeder, and is used to convey the overturned oil-containing bearings. The conveying device is provided with two discharge ports for a pair of oil-containing bearings to be discharged simultaneously;

[0009] A lifting device, which is arranged corresponding to the two discharge ports and is used to carry and lift a pair of oil-containing bearings that are discharged simultaneously;

[0010] An assembly device is arranged above the lifting device and located on the assembly line platform panel. The assembly device includes a first stamping device, a target cylindrical part and a second stamping device located on the same horizontal axis. The first stamping device and the second stamping device are arranged relatively to each other. The target cylindrical part is located between the first stamping device and the second stamping device. After the first stamping device and the second stamping device are respectively covered with a pair of oil-containing bearings after lifting, a pair of oil-containing bearings are pressed into the target cylindrical part at the same time.

[0011] Preferably, the pushing device includes a pushing cylinder and a pushing plate connected to the piston rod of the pushing cylinder, and the pushing plate is in a U-shaped structure.

[0012] Preferably, the conveying device also includes a first conveying channel and a second conveying channel, the first conveying channel and the second conveying channel form two discharge ports, the two discharge ports are located on one side of the second conveying channel, and when the pushing cylinder is extended horizontally, the push plate pushes down a pair of oil-containing bearings in the output channel of the vibration plate loader, so that they enter the first conveying channel and the second conveying channel respectively.

[0013] Preferably, the lifting device includes a first lifting assembly and a second lifting assembly, the first lifting assembly includes a first lifting cylinder, a first V-shaped block connected to the piston rod of the first lifting cylinder, the first lifting assembly is matched with the first conveying channel and the first stamping device, the second lifting assembly includes a second lifting cylinder, a second V-shaped block connected to the piston rod of the second lifting cylinder, and a fork arranged on the side of the second V-shaped block away from the discharge port, and the second lifting assembly is matched with the second conveying channel and the second stamping device.

[0014] Preferably, the first stamping device includes a first extending cylinder that is horizontally telescopic, a sleeve die head connected to the piston rod of the first extending cylinder, a second extending cylinder that is vertically telescopic, and a stamping load-bearing plate connected to the piston rod of the second extending cylinder. A U-shaped groove is provided in the middle of the lower end of the stamping load-bearing plate. When the oil-containing bearing is sleeved on the sleeve die head, the piston rod of the second extending cylinder extends downward so that the U-shaped groove is stuck in the notch formed by the sleeve die head and the oil-containing bearing.

[0015] Preferably, it also includes: a fixing frame, which is arranged on the platform panel, and the fixing frame includes a pair of vertical plates, a top plate arranged between the pair of vertical plates, and a back plate connecting the pair of vertical plates, the first extending cylinder is fixed on the back plate, and the second extending cylinder is fixed on the top plate.

[0016] Preferably, it further comprises: a pair of linear guide rails, the pair of linear guide rails are respectively arranged on one side of a pair of vertical plates, and the two sides of the stamping load-bearing plate are slidably arranged in the pair of linear guide rails.

[0017] Preferably, the second punching device comprises a horizontally telescopic punching cylinder and a punching die head connected to a piston rod of the punching cylinder, and the punching cylinder is arranged on a fixed plate on the platform panel.

[0018] Preferably, it further comprises: a tool, one side of the tool is a trapezoidal groove structure, and the tool defines the position of the target cylindrical part.

[0019] The present invention has at least the following beneficial effects:

[0020] The assembly device, the pushing device, the conveying device, and the lifting device are divided into upper and lower layers, so that the operation of the assembly device can be divided into different layers from the operation of the other three devices to avoid mutual influence of the operations and save the space occupied by the equipment;

[0021] A conveying device with two conveying channels is provided to simultaneously feed the target cylindrical parts to meet the needs of specific target cylindrical parts;

[0022] The first punching device, the target cylindrical part and the second punching device are arranged on the same horizontal axis, so that the press-fitting of the oil-containing bearing can be completed in the horizontal direction;

[0023] The press-fitting mechanism has less human intervention during the assembly process. On the one hand, it will not cause product quality defects or instability due to factors such as worker fatigue, negligence, emotion, and lack of technical skills. On the other hand, the press-fitting assembly operation requires a special press-fitting environment. It is difficult to ensure safety if humans are negligent. Only automated assembly can ensure production safety.

[0024] The pressing mechanism has a high degree of automation and mechanization, which greatly reduces the labor intensity of workers.

[0025] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a press-fitting mechanism according to one of the technical solutions of the present invention;

[0027] Figure 2 A rear structural schematic diagram of a press-fitting mechanism according to one of the technical solutions of the present invention;

[0028] Figure 3 It is a partial enlarged structural schematic diagram of a press-fitting mechanism of one of the technical solutions of the present invention;

[0029] Figure 4 Another partially enlarged structural schematic diagram of the press-fitting mechanism of one of the technical solutions of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0031] In the description of the present invention, the terms "one side", "the other side", "above", "horizontal", "vertical", "relative", "between", "middle", "downward", "top" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] like Figures 1-2 As shown, the present invention provides an automatic press-fitting mechanism suitable for assembling shaft parts in an assembly line, comprising:

[0033] The pushing device 1 is arranged on one side of the output channel of the vibrating plate loader 2, and is used to push down the oil-containing bearing on the output channel of the vibrating plate loader 2. The oil-containing bearing on the output channel of the vibrating plate loader 2 is in a vertical posture, and the pushed-down oil-containing bearing enters the conveying device 3;

[0034] The conveying device 3 is arranged on the other side of the output channel of the vibrating plate feeder 2, and is used to convey the pushed-down oil-containing bearings. The conveying device 3 is provided with two discharge ports for a pair of oil-containing bearings to be outputted simultaneously, so that a pair of oil-containing bearings can enter the provided lifting device 4 at the same time, thereby improving the feeding efficiency and meeting the requirements of specific target cylindrical parts 7. The conveying device 3 is controlled by a stepping motor;

[0035] A lifting device 4 is provided corresponding to the two discharge ports, and is used to carry and lift a pair of oil-containing bearings that are output simultaneously. The lifted pair of oil-containing bearings correspond to the first punching device 6 and the second punching device 8, respectively, so that the first punching device 6 and the second punching device 8 are conveniently mounted on the oil-containing bearings;

[0036] The assembly device is arranged above the lifting device 4 and located on the assembly line platform panel 5, so that other devices are located at the bottom of the assembly line platform panel 5, which will not interfere with other operations of the assembly line, save equipment area, do not need to move back and forth, and is convenient for operators to supervise. The assembly device includes a first punching device 6, a target cylindrical part 7 and a second punching device 8 located on the same horizontal axis, so that when the first punching device 6 and the second punching device 8 are working, a pair of oil-containing bearings can be accurately pressed into the target cylindrical part 7. The first punching device 6 and the second punching device 8 are arranged relatively, and the target cylindrical part 7 is located between the first punching device 6 and the second punching device 8, so that after the first punching device 6 and the second punching device 8 are respectively covered with a pair of oil-containing bearings, a pair of oil-containing bearings are pressed into the target cylindrical part 7 at the same time.

[0037] In the above technical scheme, the oil-containing bearings to be pressed are first manually poured into the vibrating plate loader 2, and the vibrating plate loader 2 continuously vibrates to select the oil-containing bearings in the vertical posture, and the oil-containing bearings are transported to the setting position of the pushing device 1 through the output channel of the vibrating plate loader 2, and then the oil-containing bearings are pushed down by the pushing device 1, and then the oil-containing bearings are adjusted to the posture required for press-fitting, and are transported through the conveying device 3. A pair of oil-containing bearings are simultaneously output from the two discharge ports of the conveying device 3, and a pair of oil-containing bearings simultaneously enter the lifting device 4. When a pair of oil-containing bearings After entering the lifting device 4, the conveying device 3 stops conveying, the pushing device 1 stops pushing, and the lifting device 4 lifts a pair of oil-containing bearings to the same height as the assembly device, so that the first punching device 6 and the second punching device 8 can be sleeved in the oil-containing bearings. At this time, the first punching device 6 does not move, and the second punching device 8 punches forward to press the pair of oil-containing bearings sleeved on the first punching device 6 and the second punching device 8 into the target cylindrical part 7 at the same time. After pressing, the first punching device 6 and the second punching device 8 withdraw, and the assembly action of a pair of oil-containing bearings is completed. While pressing a pair of oil-containing bearings, the lifting device 4 shrinks back to the position matching the two discharge ports, the pushing device 1 starts the pushing action, the conveying device 3 starts the conveying work, the conveying device 3 conveys another pair of oil-containing bearings to the lifting device 4, and the lifting device 4 slowly lifts upward. After the first punching device 6 and the second punching device 8 withdraw, the lifting device 4 lifts the other pair of oil-containing bearings to the height of the assembly device, and the first punching device 6 and the second punching device 8 extend and respectively cover the other pair of oil-containing bearings to press the other pair of oil-containing bearings. In this way, the assembly line press-fitting work of the target cylindrical part 7 is completed by alternating cycles. This method has high assembly efficiency and reduced product production costs. Especially in the current situation where the degree of automation in mechanical processing is constantly improving, the improvement of assembly efficiency is of greater significance to the improvement of product production efficiency.

[0038] In another technical solution, the pushing-down device 1 includes a pushing-down air cylinder 101 and a push plate 102 connected to the piston rod of the pushing-down air cylinder 101. The push plate 102 has a U-shaped structure. The horizontal expansion and contraction of the piston rod of the pushing-down air cylinder 101 enables the push plate 102 to contact and separate from the oil-impregnated bearing. When the piston rod of the pushing-down air cylinder 101 extends, the push plate 102 contacts the oil-impregnated bearing and pushes down a pair of oil-impregnated bearings. Since it takes time to press-fit a pair of oil-impregnated bearings into the target cylindrical part 7, the oil-impregnated bearings need to be input into the lifting device 4 at intervals. Therefore, the interval time for the pushing-down air cylinder 101 to work is set, and in the way of pushing down one by one as the conveying device 3 outputs, the vacancy of the conveying device 3 is filled.

[0039] In another technical solution, the conveying device 3 further includes a first conveying channel 301 and a second conveying channel 302. The first conveying channel 301 and the second conveying channel 302 form two discharge ports, and the two discharge ports are located on one side of the second conveying channel 302, so that a pair of output oil-impregnated bearings are on the same side. There is no need for a complex lifting assembly to adjust the position of a pair of oil-impregnated bearings to correspond to the assembling device. A simple lifting assembly can make the lifted pair of oil-impregnated bearings be on the same axis, making the structure of the lifting assembly simple. When the pushing-down air cylinder 101 horizontally extends, the push plate 102 pushes down a pair of oil-impregnated bearings in the output channel of the vibrating bowl feeder 2, enabling them to enter the first conveying channel 301 and the second conveying channel 302 respectively, and move along the transmission directions of the first conveying channel 301 and the second conveying channel 302 to complete the conveyance of a pair of oil-impregnated bearings. The combined use of the conveying device 3 and the pushing-down device 1 provides a structural basis for automatic feeding, making the structure simple and the conveyance simple.

[0040] In another technical solution, as Figure 3As shown, the lifting device 4 includes two lifting components, the lifting device 4 includes a first lifting component 41 and a second lifting component 42, the first lifting component 41 includes a first lifting cylinder 411, and a first V-shaped block 412 connected to the piston rod of the first lifting cylinder 411, the first lifting component 41 is matched with the first transmission channel 301 and the first punching device 6, after the oil-containing bearing in the first transmission channel 301 enters the first V-shaped block 412, the first lifting cylinder 411 lifts it to the height of the first punching device 6, completing the lifting of one of the oil-containing bearings; The second lifting assembly 42 includes a second lifting cylinder 421, a second V-shaped block 422 connected to the piston rod of the second lifting cylinder 421, and a shift fork 423 arranged on the second V-shaped block 422 away from the discharge port. The second lifting assembly 42 is matched with the second transmission channel 302 and the second punching device 8. After the oil-containing bearing in the second transmission channel 302 is transported to the second V-shaped block 422, the second lifting cylinder 421 lifts it to the height of the second punching device 8, and the shift fork 423 shifts the oil-containing bearing to the second punching device 8 to complete the lifting of another oil-containing bearing. The first lifting cylinder 411 and the second lifting cylinder 421 lift and shrink upwards at the same time. The lifting device 4 has a simple structure and can effectively complete the lifting action of a pair of oil-containing bearings, thereby improving the production efficiency of the assembly line.

[0041] In another technical solution, Figure 4 As shown, the first stamping device 6 includes a first extending cylinder 601 that can be extended horizontally, a sleeve die head 602 connected to the piston rod of the first extending cylinder 601, a second extending cylinder 603 that can be extended vertically, and a stamping load-bearing plate 604 connected to the piston rod of the second extending cylinder 603. A U-shaped groove is provided in the middle of the lower end of the stamping load-bearing plate 604. When the first lifting cylinder 411 lifts one of the oil-containing bearings to a height corresponding to the sleeve die head 602, the piston rod of the first extending cylinder 601 extends to insert the sleeve die head 602 into one of the oil-containing bearings, and the first lifting cylinder 411 contracts downward. At this time, the piston rod of the second extending cylinder 603 extends downward to make the U-shaped groove stuck in the gap formed by the sleeve die head 602 and the oil-containing bearing. The sleeve die head 602 sleeves the oil-containing bearing, and the second extending cylinder 603 drives the stamping load-bearing plate 604 to be stuck at the sleeve die head 602 on the rear side of the oil-containing bearing, providing a stable support structure for the stamping of the oil-containing bearing. When the second stamping device 8 acts, the stamping load-bearing plate 604 can withstand the impact force brought by the stamping of the second stamping device 8.

[0042] In another technical solution, it also includes: a fixing frame, which is arranged on the platform panel 5, and the fixing frame includes a pair of vertical plates, a top plate arranged between the pair of vertical plates, and a back plate connecting the pair of vertical plates. The first extending cylinder 601 is fixed on the back plate, and the second extending cylinder 603 is fixed on the top plate, providing a fixing structure for the first stamping device 6, so that the first stamping device 6 is firmly fixed.

[0043] In another technical solution, it also includes: a pair of linear guide rails 605, which are respectively arranged on one side of a pair of vertical plates, and the two sides of the stamping load-bearing plate 604 are slidably arranged in the pair of linear guide rails 605 to provide a sliding track for the stamping load-bearing plate 604, so that the structure of the stamping load-bearing plate 604 is more stable and the position of the stamping load-bearing plate 604 is more stable.

[0044] In another technical solution, the second stamping device 8 includes a horizontally retractable stamping cylinder 801 and a stamping die head 802 connected to the piston rod of the stamping cylinder 801. When the second lifting cylinder 421 lifts the other oil-containing bearing to a coaxial height corresponding to the stamping die head 802, the shift fork 423 shifts the other oil-containing bearing to the stamping die head 802, so that the other oil-containing bearing is sleeved on the stamping die head 802, and the second lifting cylinder 421 contracts downward, and the stamping cylinder 801 starts stamping. The stamping cylinder 801 is a stamping cylinder 801 with a guide rod, so that the moving path of the stamping cylinder 801 is stable. The stamping cylinder 801 is fixed on a fixed plate 10 arranged on the platform panel 5, and the setting of the fixed plate 10 provides a fixed structure for the second stamping device 8.

[0045] The above technical solution also includes: a tool 9, one side of which is a trapezoidal groove structure, so that the tool 9 matches the target cylindrical part 7, which is conducive to limiting the position of the target cylindrical part 7.

[0046] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An automatic press-fitting mechanism suitable for assembling shaft parts in an assembly line, characterized in that: include: A pushing device (1), which is arranged on one side of the output channel of the vibrating plate loader (2) and is used to push down the oil-containing bearing on the output channel of the vibrating plate loader (2); A conveying device (3) is arranged on the other side of the output channel of the vibrating plate loader (2) and is used to convey the pushed-down oil-containing bearings. The conveying device (3) is provided with two discharge ports for simultaneously outputting a pair of oil-containing bearings. The conveying device (3) comprises a first conveying channel (301) and a second conveying channel (302); A lifting device (4) is arranged corresponding to the two discharge ports and is used to carry and lift a pair of oil-containing bearings for simultaneous output; An assembly device is arranged above the lifting device (4) and located on the assembly line platform panel (5), the assembly device comprising a first punching device (6), a target cylindrical part (7) and a second punching device (8) located on the same horizontal axis, the first punching device (6) and the second punching device (8) being arranged opposite to each other, the target cylindrical part (7) being located between the first punching device (6) and the second punching device (8), and the first punching device (6) and the second punching device (8) are respectively covered with a pair of oil-containing bearings after lifting, and then the pair of oil-containing bearings are simultaneously pressed into the target cylindrical part (7); The lifting device (4) comprises a first lifting assembly (41) and a second lifting assembly (42); the first lifting assembly (41) comprises a first lifting cylinder (411) and a first V-shaped block (412) connected to the piston rod of the first lifting cylinder (411); the first lifting assembly (41) is matched with the first conveying channel (301) and the first punching device (6); the second lifting assembly (42) comprises a second lifting cylinder (421), a second V-shaped block (422) connected to the piston rod of the second lifting cylinder (421), and a shift fork (423) arranged on the second V-shaped block (422) away from the discharge port; the second lifting assembly (42) is matched with the second conveying channel (302) and the second punching device (8); The first punching device (6) comprises a first extending cylinder (601) that is horizontally telescopic, a sleeve die head (602) connected to the piston rod of the first extending cylinder (601), a second extending cylinder (603) that is vertically telescopic, and a punching load-bearing plate (604) connected to the piston rod of the second extending cylinder (603), wherein a U-shaped groove is provided in the middle of the lower end of the punching load-bearing plate (604), and when the oil-containing bearing is sleeved on the sleeve die head (602), the piston rod of the second extending cylinder (603) is extended downward so that the U-shaped groove is stuck in the notch formed by the sleeve die head (602) and the oil-containing bearing.

2. The automatic press-fitting mechanism for assembling shaft parts in an assembly line as claimed in claim 1 is characterized in that: The pushing device (1) comprises a pushing cylinder (101) and a pushing plate (102) connected to a piston rod of the pushing cylinder (101); the pushing plate (102) is in a U-shaped structure.

3. The automatic press-fitting mechanism for assembling shaft parts in an assembly line as claimed in claim 2 is characterized in that: The first conveying channel (301) and the second conveying channel (302) form two discharge ports, and the two discharge ports are located on one side of the second conveying channel (302). When the push-down cylinder (101) is extended horizontally, the push plate (102) pushes down a pair of oil-containing bearings in the output channel of the vibration plate loader (2), so that the bearings enter the first conveying channel (301) and the second conveying channel (302) respectively.

4. The automatic press-fitting mechanism for assembling shaft parts in an assembly line as claimed in claim 3 is characterized in that: It also includes: a fixing frame, the fixing frame is arranged on the platform panel (5), the fixing frame includes a pair of vertical plates, a top plate arranged between the pair of vertical plates, and a back plate connected to the pair of vertical plates, the first extending cylinder (601) is fixed to the back plate, and the second extending cylinder (603) is fixed to the top plate.

5. The automatic press-fitting mechanism for assembling shaft parts in an assembly line as claimed in claim 4 is characterized in that: Also includes: A pair of linear guide rails (605) are respectively arranged on one side of a pair of vertical plates, and two sides of the stamping load-bearing plate (604) are slidably arranged in the pair of linear guide rails (605).

6. The automatic press-fitting mechanism for assembling shaft parts in an assembly line as claimed in claim 1, characterized in that: The second punching device (8) comprises a horizontally telescopic punching cylinder (801) and a punching die head (802) connected to the piston rod of the punching cylinder, and the punching cylinder is arranged on a fixed plate (10) on the platform panel (5).

7. The automatic press-fitting mechanism for assembling shaft parts in an assembly line as claimed in claim 1, characterized in that: Also includes: A tool (9), one side of the tool (9) is in the form of a trapezoidal groove structure, and the tool (9) defines the position of the target cylindrical part (7).

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