Press fitting method of sliding seat bearing press fitting device

Abstract

The invention discloses a press-fitting method of a sliding seat bearing press-fitting device. The press-fitting method comprises the following steps: step 1, positioning a sliding seat; step 2, grabbing and press-fitting a lower-layer bearing; 3, the sliding seat positioning device retreats to one side of the upper and lower bearing grabbing device; step 4, grabbing the press-fitting spacer bush; 5, the sliding seat positioning device retreats to one side of the upper and lower bearing grabbing device; step 6, grabbing and press-fitting the upper-layer bearing; 7, the sliding seat positioning device moves to the left and right bearing guiding devices, and the left and right bearing guiding devices conduct left and right guiding positioning on the sliding seat; 8, grabbing and press-fitting the left bearing and the right bearing; ninthly, the left and right bearing guiding devices relieve guiding and positioning of the sliding seat, and the sliding seat positioning device returns to the initial position; the full-process automation from sliding seat positioning, grabbing and press fitting of the upper bearing, the lower bearing and the spacer bush and synchronous guiding and press fitting of the left bearing and the right bearing is achieved, the assembly efficiency is greatly improved, and manual intervention and labor intensity are reduced.

Description

Technical Field

[0001] This invention relates to the field of bearing press-fitting fixtures, and in particular to a press-fitting method for a sliding bearing press-fitting device. Background Technology

[0002] When the edge banding machine's roughing, fine finishing, and scraping functions are working, in order to improve stability, it needs to be equipped with a contour measuring tool. During operation, the tool moves slightly up and down and left and right through the bearings inside the guide rod and sliding seat.

[0003] Sliding bearing assemblies often require the internal pressing of multiple layers of bearings and spacers to ensure transmission accuracy and load-bearing capacity. Traditional sliding bearing pressing methods are mostly manual or semi-automated, resulting in low efficiency, high labor intensity, and difficulty in guaranteeing pressing accuracy. Especially in complex sliding bearing structures that require the sequential pressing of upper and lower bearings, spacers, and left and right bearings, manual operation is not only cumbersome but also prone to bearing damage or poor assembly due to misalignment or uneven pressing force, affecting the overall equipment performance and service life.

[0004] While some bearing press-fitting equipment exists on the market, most are designed for single-bearing press-fitting, making it difficult to achieve sequential, positioning, and synchronous press-fitting of multiple layers of bearings and spacers. In particular, they lack the function of simultaneously press-fitting and positioning left and right bearings. Furthermore, existing equipment has a low level of automation, with poor coordination between processes, making it difficult to meet the demands of high-efficiency, high-precision production.

[0005] Therefore, a new technology needs to be developed to solve the above problems. Summary of the Invention

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a pressing method for a sliding seat bearing pressing device. This method automates the entire process from sliding seat positioning, gripping and pressing of the upper and lower bearings and spacers, to the synchronous guidance and pressing of the left and right bearings, thereby significantly improving assembly efficiency and reducing manual intervention and labor intensity.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A pressing method for a sliding bearing pressing device, the sliding bearing pressing device comprising a frame and an upper and lower bearing storage and pushing device, a spacer storage device, a sliding seat positioning device, an upper and lower bearing gripping device, an upper and lower bearing pressing device, a left and right bearing guiding device, a left bearing storage device, a left bearing gripping and pressing device, a right bearing storage device, and a right bearing gripping and pressing device, all mounted on the frame. The sliding bearing press-fitting device includes the following steps during press-fitting: Step 1, Positioning the sliding block: Place the sliding block on the sliding block positioning device, which is positioned in the initial position; Step 2, Grab and press the lower bearing: The upper and lower bearing grabbing device grabs the lower bearing from the upper and lower bearing storage and pushing device and moves it to the corresponding position on the sliding seat of the sliding seat positioning device. Then the sliding seat positioning device moves to the bottom of the upper and lower bearing pressing device, and the upper and lower bearing pressing device presses the lower bearing down into the lower side of the upper and lower bearing mounting hole on the sliding seat. Step 3: The sliding seat positioning device retracts to one side of the upper and lower bearing gripping device; Step 4: Grab and press-fit spacer: The upper and lower bearing gripping device grabs the spacer from the spacer storage device and moves it to the corresponding position on the sliding seat of the sliding seat positioning device. Then the sliding seat positioning device moves to the bottom of the upper and lower bearing pressing device, and the upper and lower bearing pressing device presses the spacer down into place at the upper end of the lower bearing in the upper and lower bearing mounting holes on the sliding seat. Step 5: The sliding seat positioning device retracts to one side of the upper and lower bearing gripping device; Step 6: Grab and press the upper bearing: The upper and lower bearing grabbing device grabs the upper bearing from the upper and lower bearing storage and pushing device and moves it to the corresponding position on the sliding seat of the sliding seat positioning device. Then the sliding seat positioning device moves to the bottom of the upper and lower bearing pressing device, and the upper and lower bearing pressing device presses the upper bearing down to the upper end of the spacer in the upper and lower bearing mounting hole on the sliding seat. Step 7: The sliding seat positioning device moves to the left and right bearing guide device, and the left and right bearing guide device guides and positions the sliding seat left and right. Step 8: Grab and press the left and right bearings: The left bearing grabbing and pressing device grabs the left bearing from the left bearing storage device and presses it into the left bearing mounting hole on the sliding seat to the right. The right bearing grabbing and pressing device grabs the right bearing from the right bearing storage device and presses it into the right bearing mounting hole on the sliding seat to the left. Step 9: The left and right bearing guide devices release their guide positioning on the sliding seat, and the sliding seat positioning device returns to its initial position.

[0008] As a preferred embodiment, the spacer storage device and the upper and lower bearing storage and pushing device are respectively located on the left and right sides of the sliding seat positioning device. The upper and lower bearing gripping device is located above the front side of the sliding seat positioning device. The upper and lower bearing gripping device can reciprocate between the upper and lower bearing storage and pushing device, the spacer storage device, and the sliding seat positioning device. The upper and lower bearing pressing device and the left and right bearing guiding devices are arranged with a front-to-back spacing. The sliding seat positioning device can reciprocate between the upper and lower bearing pressing device and the left and right bearing guiding devices. The left bearing storage device and the right bearing storage device are respectively located on the left and right sides of the left and right bearing guiding devices. The left bearing gripping and pressing device and the right bearing gripping and pressing device are respectively located on the left side of the left bearing storage device and the right side of the right bearing storage device. The left bearing gripping and pressing device can reciprocate between the left bearing storage device and the left and right bearing guiding devices. The right bearing gripping and pressing device can reciprocate between the right bearing storage device and the left and right bearing guiding devices.

[0009] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution: I. This invention automates the entire process from positioning the sliding seat, gripping and pressing the upper and lower bearings and spacers, to synchronous guiding and pressing the left and right bearings, greatly improving assembly efficiency and reducing manual intervention and labor intensity. Second, the multiple positioning structures, such as the sliding seat positioning device and the left and right bearing guide devices, ensure the positional accuracy of the bearing and the spacer during the press-fitting process, and avoid poor assembly or damage to parts due to misalignment. Third, the layout of each device (such as storage device, gripping device, pressing device, guiding device, etc.) is reasonable and the operation is coordinated, realizing seamless connection between processes and suitable for flexible production needs of multiple varieties and batches. Fourth, the device has a compact overall layout and is suitable for press-fitting bearings of different sizes of sliding seats. It has good versatility and expandability and is easy to integrate into automated production lines.

[0010] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0011] Figure 1 This is an exploded view of the sliding bearing assembly provided in an embodiment of the present invention; Figure 2 This is a perspective view of the sliding seat bearing press-fitting device provided in an embodiment of the present invention; Figure 3 This is a top view of the sliding bearing press-fitting device provided in an embodiment of the present invention; Figure 4 This is a front view of the sliding bearing press-fitting device provided in an embodiment of the present invention; Figure 5 This is an exploded view of the sliding bearing press-fitting device provided in an embodiment of the present invention; Figure 6 This is another exploded view of the sliding seat bearing press-fitting device provided in an embodiment of the present invention; Figure 7 This is a perspective view of the sliding seat positioning device provided in an embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of the sliding seat positioning device provided in an embodiment of the present invention from another angle; Figure 9 This is a cross-sectional schematic diagram of the sliding seat positioning device provided in an embodiment of the present invention; Figure 10 This is a perspective view of the upper and lower bearing storage and pushing device provided in an embodiment of the present invention; Figure 11 This is a three-dimensional schematic diagram from another angle of the upper and lower bearing storage and pushing device provided in an embodiment of the present invention; Figure 12 This is a perspective view of the spacer storage device provided in an embodiment of the present invention; Figure 13 This is a cross-sectional schematic diagram of the spacer storage device provided in an embodiment of the present invention; Figure 14 This is a perspective view of the upper and lower bearing gripping device provided in an embodiment of the present invention; Figure 15 This is a side view of the upper and lower bearing gripping device provided in an embodiment of the present invention; Figure 16 This is a perspective view of the upper and lower bearing press-fitting device provided in an embodiment of the present invention; Figure 17 This is a three-dimensional schematic diagram from another angle of the upper and lower bearing press-fitting device provided in an embodiment of the present invention; Figure 18 This is a perspective view of the left and right bearing guide device provided in an embodiment of the present invention; Figure 19 This is a three-dimensional schematic diagram of the left and right bearing guide device provided in an embodiment of the present invention from another angle; Figure 20 This is a perspective view of the left and right bearing guide device with sliding seat bearing assembly provided in an embodiment of the present invention; Figure 21 This is a perspective view of the left bearing storage device provided in an embodiment of the present invention; Figure 22 This is a side view of the left bearing storage device provided in an embodiment of the present invention; Figure 23 This is a perspective view of the left bearing gripping and pressing device provided in an embodiment of the present invention; Figure 24 This is another perspective view of the left bearing gripping and pressing device provided in an embodiment of the present invention; Figure 25 This is a front view of the left bearing gripping and pressing device provided in an embodiment of the present invention. Detailed Implementation

[0012] Please refer to Figures 1 to 25 As shown, it illustrates the specific structure of the sliding seat bearing press-fitting device provided in an embodiment of the present invention.

[0013] like Figure 1 As shown, the sliding bearing assembly includes a sliding seat 1, an upper bearing 2, a spacer 3, a lower bearing 4, a left bearing 5, and a right bearing 6. The sliding seat 1 is provided with upper and lower bearing mounting holes 101, a left bearing mounting hole 102, and a right bearing mounting hole 103. The lower bearing 4, the spacer 3, and the upper bearing 2 are sequentially installed into the same upper and lower bearing mounting hole 101 from top to bottom. The left bearing 5 and the right bearing 6 are installed into the left bearing mounting hole 102 and the right bearing mounting hole 103, respectively. In this embodiment, there are two upper and lower bearing mounting holes 101, two left bearing mounting holes 102, and two right bearing mounting holes 103. Correspondingly, there are two upper bearings 2, two spacers 3, two lower bearings 4, two left bearings 5, and two right bearings 6.

[0014] The sliding bearing pressing device includes a frame 7 and upper and lower bearing storage and pushing device 10, spacer storage device 20, sliding seat positioning device 30, upper and lower bearing gripping device 40, upper and lower bearing pressing device 50, left and right bearing guiding device 60, left bearing storage device 70, left bearing gripping and pressing device 80, right bearing storage device 90, and right bearing gripping and pressing device 100, all mounted on the frame 7.

[0015] The pressing method of the sliding bearing press-fitting device includes the following steps: Step 1, Positioning the sliding block: Place the sliding block 1 on the sliding block positioning device 30, which is positioned in the initial position; Step 2, grab and press the lower bearing 4: The upper and lower bearing grabbing device 40 grabs the lower bearing 4 from the upper and lower bearing storage and pushing device 10 and moves it to the corresponding position on the sliding seat 1 on the sliding seat positioning device 30. Then the sliding seat positioning device 30 moves to the bottom of the upper and lower bearing pressing device 50, and the upper and lower bearing pressing device 50 presses the lower bearing 4 into place in the lower side of the upper and lower bearing mounting hole 101 on the sliding seat 1. Step 3: The sliding seat positioning device 30 retracts to one side of the upper and lower bearing gripping device 40; Step 4, gripping and pressing the spacer: The upper and lower bearing gripping device 40 grips the spacer 3 from the spacer storage device 20 and moves it to the corresponding position on the sliding seat 1 on the sliding seat positioning device 30. Then the sliding seat positioning device 30 moves to the bottom of the upper and lower bearing pressing device 50, and the upper and lower bearing pressing device 50 presses the spacer 3 down into place at the upper end of the lower bearing 4 in the upper and lower bearing mounting hole 101 on the sliding seat 1. Step 5: The sliding seat positioning device 30 retracts to one side of the upper and lower bearing gripping device 40; Step 6: Grab and press the upper bearing 2: The upper and lower bearing gripping device 40 grabs the upper bearing 2 from the upper and lower bearing storage and pushing device 10 and moves it to the corresponding position on the sliding seat 1 on the sliding seat positioning device 30. Then the sliding seat positioning device 30 moves to the bottom of the upper and lower bearing pressing device 50, and the upper and lower bearing pressing device 50 presses the upper bearing 2 down into place at the upper end of the spacer 3 in the upper and lower bearing mounting hole 101 on the sliding seat 1. Step 7: The sliding seat positioning device 30 moves to the left and right bearing guide device 60, and the left and right bearing guide device 60 guides and positions the sliding seat 1 left and right. Step 8: Grab and press the left and right bearings: The left bearing gripping and pressing device 80 grips the left bearing 5 from the left bearing storage device 70 and presses the left bearing 5 into the left bearing mounting hole 102 on the sliding seat 1 to the right. The right bearing gripping and pressing device 100 grips the right bearing 6 from the right bearing storage device 90 and presses the right bearing 6 into the right bearing mounting hole 103 on the sliding seat 1 to the left. Step 9: The left and right bearing guide devices 60 release the guide positioning of the sliding seat 1, and the sliding seat positioning device 30 retracts to the initial position.

[0016] Specifically, such as Figures 2 to 6As shown, the spacer storage device 20 and the upper and lower bearing storage and pushing device 10 are respectively arranged on the left and right sides of the sliding seat positioning device 30. The upper and lower bearing gripping device 40 is located above the front side of the sliding seat positioning device 30 and can reciprocate between the upper and lower bearing storage and pushing device 10, the spacer storage device 20, and the sliding seat positioning device 30. The upper and lower bearing pressing device 50 and the left and right bearing guide devices 60 are arranged with a front-to-back spacing. The sliding seat positioning device 30 can reciprocate between the upper and lower bearing pressing device 50 and the left and right bearing guide devices 60. The left bearing storage device 70 and the right bearing storage device 90 are respectively located on the left and right sides of the left and right bearing guide devices 60. The pressing and fitting device 80 and the right bearing gripping and pressing device 100 are located to the left of the left bearing storage device 70 and to the right of the right bearing storage device 90, respectively. The left bearing gripping and pressing device 80 can reciprocate between the left bearing storage device 70 and the left and right bearing guide devices 60, and the right bearing gripping and pressing device 100 can reciprocate between the right bearing storage device 90 and the left and right bearing guide devices 60. In this way, the layout of each device is reasonable and the movements are coordinated, realizing seamless connection between processes. It is suitable for flexible production needs of multiple varieties and batches. In addition, the overall layout of the device is compact and suitable for pressing bearings with different sizes of sliding seats. It has good versatility and expandability and is easy to integrate into automated production lines.

[0017] like Figure 10 and Figure 11 As shown, the upper and lower bearing storage and pushing device 10 includes an upper and lower bearing storage device 11 and an upper and lower bearing pushing device 12 connected to the output side of the upper and lower bearing storage device 11; wherein: The upper and lower bearing storage device 11 includes an arc-shaped bearing storage tray 111, a straight bearing conveying track 112, a bearing pull rod 113, a pull rod drive unit 114, a bearing push block 115, and a bearing push drive unit 116. The input port of the straight bearing conveying track 112 is connected to the output port of the arc-shaped bearing storage tray 111. The bearing push block 115 is movably located within the conveying groove 117 of the straight bearing conveying track 112, and is located beside the input port of the straight bearing conveying track 112. The bearing push drive unit 116 is located on one side of the straight bearing conveying track 112 and is driven by the bearing push block 115. One end of the bearing pull rod 113 is located on the arc-shaped bearing storage tray 111. Within the storage space of the arc-shaped bearing storage tray 111, a lever drive unit 114 is connected to the other end of the bearing lever 113, driving the bearing lever 113 to rotate. The bearings are stored in the arc-shaped bearing storage tray 111, allowing for multiple rows of storage. The lever drive unit 114 drives the bearing lever 113 to move the bearings forward. The bearing push drive unit 116 drives the bearing push block 115 to push the bearings from the arc-shaped bearing storage tray 111 into the conveying groove 117, forming a single-row positioning conveyor, and pushing them forward into the sliding groove 125 of the upper and lower bearing push device 12. The lever drive unit 114 is preferably a motor, and the bearing push drive unit 116 is preferably a cylinder.

[0018] The upper and lower bearing pushing device 12 includes a first mounting plate 121 and a bearing positioning track 122, a pusher plate 123, and a side-push cylinder 124 mounted on the first mounting plate 121. The bearing positioning track 122 has a sliding groove 125 and a first bearing positioning groove 126 communicating with the sliding groove 125. The input port of the sliding groove 125 is connected to the output port of the straight bearing conveying track 112. The pusher plate 123 is located on one side of the sliding groove 125. The side-push cylinder 124 is driven and connected to the pusher plate 123. The side-push cylinder 124 drives the pusher plate 123 to push the bearing in the sliding groove 125 into the first bearing positioning groove 126. In this embodiment, there are two first bearing positioning grooves 126, which are arranged side by side with a spacing. Correspondingly, there are two pusher plates 123 and two side-push cylinders 124. In steps 2 and 6, the upper and lower bearing gripping device 40 simultaneously grips two bearings from the two first bearing positioning grooves 126.

[0019] like Figure 12 and Figure 13As shown, the spacer storage device 20 includes a second mounting plate 21 and a spacer storage container 22, a spacer pusher plate 23, and a spacer pushing cylinder 24 mounted on the second mounting plate 21. The spacer storage container 22 is mounted above the second mounting plate 21 via a base 25. The base 25 has a spacer receiving cavity 251. The lower end outlet of the spacer storage container 22 is connected to the upper end of the spacer receiving cavity 251. A spacer positioning groove 26 is provided on one side of the base 25 on the second mounting plate 21. The outlet of the spacer receiving cavity 251 is connected to the spacer positioning groove 26. The spacer pushing cylinder 24 is mounted below the second mounting plate 21. The spacer pusher plate 23 is capable of lateral movement. Located within the base 25 and on one side of the spacer housing cavity 251, the spacer push plate 23 is connected to the spacer push cylinder 24. The spacer push cylinder 24 drives the spacer push plate 23 to push the spacer 3 from the spacer housing cavity 251 into the spacer positioning groove 26. The spacer 3 is placed into the upper input port of the spacer storage container 22. In this embodiment, there are two spacer positioning grooves 26, which are arranged side by side with a spacing. Correspondingly, there are two spacer storage containers 22, two spacer push plates 23, two spacer push cylinders 24, and two spacer housing cavities 251. In step 4, the upper and lower bearing gripping device 40 simultaneously grips the two spacers 3 from the two spacer positioning grooves 26.

[0020] like Figure 7 , Figure 8 and Figure 9 As shown, the sliding seat positioning device 30 includes a first guide rail 31, a first slider 32, a first drive motor 33, a first lead screw 34, a first connecting seat 35, a mounting seat 36, a support column 37, a third mounting plate 38, a sliding seat positioning block 39, upper and lower bearing guide columns 301, and a first cylinder 302; wherein: The first guide rail 31 is mounted on the frame 7 and extends in the front-rear direction below the upper and lower bearing gripping device 40 and the upper and lower bearing pressing device 50. The first drive motor 33 is mounted on the frame 7 and is driven by the first lead screw 34. The first connecting seat 35 is mounted above the mounting base 36 and is connected to the first lead screw 34 via a nut. The first slider 32 is mounted below the mounting base 36 and slides to fit the first guide rail 31. The support column 37 is mounted between the mounting base 36 and the third mounting plate 38. The first cylinder 302 is mounted below the third mounting plate 38 via a cylinder mounting bracket 303. The sliding seat positioning block 39 is mounted above the third mounting plate 38. The upper and lower bearing guide column 301 is able to move up and down and passes through the third mounting plate 38 and is located at the sliding seat positioning block. On one side of 39, the lower end of the upper and lower bearing guide pillars 301 is connected to the first cylinder 302. The upper and lower bearing guide pillars 301 are provided with a sliding seat positioning surface 3011, a bearing positioning surface 3012, and a bearing guide surface 3013 from bottom to top. The sliding seat positioning surface 3011 is the upper surface of the sliding seat positioning boss 3014 that protrudes outward in the circumferential direction from the lower end of the upper and lower bearing guide pillars 301. The bearing positioning surface 3012 is the circumferential side surface of the upper and lower bearing guide pillars 301. The bearing guide surface 3013 extends upward from the upper end of the bearing positioning surface 3012 to the upper end of the upper and lower bearing guide pillars 301. The first cylinder 302 drives the upper and lower bearing guide pillars 301 to move upward so that the sliding seat positioning surface 3011 is exposed on the upper surface of the third mounting plate 38, so as to support and position the lower surface of the sliding seat 1 through the sliding seat positioning surface 3011. There are two upper and lower bearing guide pillars 301, which are arranged side by side with a spacing between them. Correspondingly, there are two first cylinders 302.

[0021] In the sliding seat positioning device 30: by setting up upper and lower bearing guide columns 301 with a sliding seat positioning surface 3011, a bearing positioning surface 3012 and a bearing guide surface 3013, the support positioning of the sliding seat, the radial positioning and axial guidance of the bearing can be completed in sequence in one lifting action, realizing the integration of multi-level positioning functions and significantly simplifying the operation process. The first guide rail 31 and the first lead screw 34 drive structure, together with the first slider 32 and the first connecting seat 35, realize the precise movement and positioning of the mounting seat 36 in the front and back directions, and ensure the accurate transfer of the sliding seat between assembly stations; the upper and lower bearing guide columns 301 are driven by the first cylinder 302, which makes the movement smooth and the positioning reliable. The mounting base 36 and the third mounting plate 38 are connected by the support column 37 to form a stable support structure and enhance the overall rigidity; the components are rationally laid out and integrated under the frame 7 to save equipment space. The sliding seat positioning block 39 and the upper and lower bearing guide columns 301 can be replaced or adjusted according to different workpiece sizes, which is suitable for the assembly of sliding seats and bearings of various specifications, thus improving the versatility of the equipment. Through the coordinated control of the first drive motor 33 and the first cylinder 302, the automatic transfer and positioning of the sliding seat and the automatic lifting and lowering of the guide column can be realized, reducing manual intervention and improving assembly efficiency and consistency.

[0022] In step 1, the sliding seat 1 is positioned on the upper surface of the third mounting plate 38. The two upper and lower bearing guide pillars 301 extend out of the upper surface of the sliding seat 1 through the two upper and lower bearing mounting holes 101 on the sliding seat 1. The sliding seat 1 abuts against the sliding seat positioning block 39, and the sliding seat positioning surface 3011 abuts against the lower surface of the sliding seat 1. In steps 2, 4 and 6, the lower bearing 4, the spacer 3 and the upper bearing 2 are all press-fitted onto the upper and lower bearing guide pillars 301.

[0023] like Figure 14 and Figure 15 As shown, the upper and lower bearing gripping device 40 includes a support frame 41, a crossbeam 42, a second guide rail 43, a second slider 44, a fourth mounting plate 45, a gripping cylinder 46, a gripper 47, a rack 48, a gear 49, and a second drive motor 401. The support frame 41 is mounted on the machine frame 7, the crossbeam 42 is mounted on the upper end of the support frame 41, the second guide rail 43 is mounted on the rear side of the crossbeam 42, the rack 48 is mounted on the upper side of the crossbeam 42, and the second slider 44 is mounted on the fourth mounting plate 45 and slidably adapted to the second guide rail 43. The second drive motor 401 is mounted on the fourth mounting plate 45 via the motor mounting base 402. The second drive motor 401 drives the gear 49 to rotate. The gear 49 meshes with the rack 48. The gripping cylinder 46 is mounted on the fourth mounting plate 45 and is connected to the gripper 47. The gripper 47 is located below the fourth mounting plate 45. There are two grippers 47 arranged side by side with a spacing between them. Correspondingly, there are two gripping cylinders 46. The two gripping cylinders 46 drive the two grippers 47 to grip the workpiece synchronously.

[0024] like Figure 16 and Figure 17As shown, the upper and lower bearing pressing device 50 includes a connecting column 51, a support plate 52, a fifth mounting plate 53, a first guide column 54, a second guide column 55, a pressing die 56, a third drive motor 57, a second lead screw 58, a second connecting seat 59, a pressing plate 501, a positioning die 502, a die gripper 503, a positioning plate 504, and a second cylinder 505. Specifically, the connecting column 51 is mounted on the frame 7, the support plate 52 is mounted in the middle of the connecting column 51, the fifth mounting plate 53 is mounted on the upper end of the connecting column 51, the third drive motor 57 is mounted above the fifth mounting plate 53, the pressing die 56 is movable up and down and passes through the support plate 52, the upper end of the pressing die 56 is connected to the pressing plate 501, and the second connecting seat 59 is mounted on the pressing plate 501. The second lead screw 58 is connected to the second lead screw 58 by a nut. The upper end of the second lead screw 58 passes through the fifth mounting plate 53 and is connected to the third drive motor 57. The first guide post 54 is able to move up and down and passes through the fifth mounting plate 53. The lower end of the first guide post 54 is connected to the upper end of the pressure plate 501. The second cylinder 505 is installed above the fifth mounting plate 53 and is located on one side of the third drive motor 57. The positioning plate 504 is located below the fifth mounting plate 53. The second cylinder 505 is driven and connected to the positioning plate 504. The mold gripper 503 is installed at the lower end of the positioning plate 504. The positioning mold 502 is gripped below the mold gripper 503. The second guide post 55 is able to move up and down and passes through the fifth mounting plate 53. The lower end of the second guide post 55 is connected to the upper end of the positioning plate 504.

[0025] In the upper and lower bearing press-fitting device 50: through the reasonable layout of components such as connecting column 51, support plate 52, and mounting plate, the press-fitting and positioning module is integrated, which facilitates installation and debugging on the frame 7 and saves space. The first guide post 54 and the second guide post 55 are used to guide the up and down movement of the pressing plate 501 and the positioning plate 504 respectively, which effectively prevents uneven loading and shaking, and ensures the stability and repeatability of the pressing process. By cooperating with the mold gripper 503 and the positioning mold 502, the workpiece can be quickly and accurately positioned and reliably gripped, avoiding workpiece displacement or tilting during the pressing process. The pressing plate 501 is driven by a third drive motor 57 and a second lead screw 58, and the second cylinder 505 controls the movement of the positioning plate 504, so that the pressing stroke and pressing force are controllable and adjustable, adapting to the pressing requirements of bearings of different specifications. The entire pressing process can be automatically controlled, reducing manual intervention, improving assembly efficiency, reducing labor intensity, and making it suitable for mass production environments.

[0026] In step 2, step 4, or step 6, the sliding seat positioning device 30 first moves the sliding seat 1 below the pressing mold 56. Then, the third drive motor 57 drives the pressing mold 56 downward to press the lower bearing 4, spacer 3, or upper bearing 2 into the upper and lower bearing mounting holes 101 on the sliding seat 1 until the upper surface of the lower bearing 4, spacer 3, or upper bearing 2 is flush with the upper surface of the sliding seat 1. The third drive motor 57 then drives the pressing mold 56 upward away from the sliding seat 1. Next, the sliding seat positioning device 30 moves the sliding seat 1 below the positioning mold 502. Then, the second cylinder 505 drives the mold gripper 503 downward to position the positioning mold 502 above the lower bearing 4, spacer 3, or upper bearing 2 on the sliding seat 1. The second cylinder 505 drives the mold gripper 503 to move upward and disengage from the positioning mold 502. Then, the sliding seat positioning device 30 moves the sliding seat 1 to below the pressing mold 56. Then, the third drive motor 57 drives the pressing mold 56 to move downward and push against the positioning mold 502, so that the positioning mold 502 presses the lower bearing 4, spacer 3 or upper bearing 2 into place. Then, the third drive motor 57 drives the pressing mold 56 to move upward and away from the positioning mold 502. Then, the sliding seat positioning device 30 moves the sliding seat 1 to below the positioning mold 502. Then, the second cylinder 505 drives the mold gripper 503 to move downward and grasp the positioning mold 502. Finally, the second cylinder 505 drives the mold gripper 503 to grasp the positioning mold 502 and move upward to remove it.

[0027] like Figure 18 , Figure 19 and Figure 20 As shown, the left and right bearing guide devices 60 include a mounting base 61 and a left bearing guide device 62 and a right bearing guide device 63 symmetrically arranged on the mounting base 61. Both the left bearing guide device 62 and the right bearing guide device 63 include a sixth mounting plate 64, a sliding guide post 65, a sliding plate 66, a bearing guide post 67, and a third cylinder 68. The sixth mounting plate 64 is mounted on the mounting base 61. One end of the sliding guide post 65 is connected to the sixth mounting plate 64. The sliding plate 66 is slidably mounted on the other end of the sliding guide post 65. The third cylinder 68 is mounted on the sixth mounting plate 64 and is driven by the sliding plate 66. The bearing guide post 67 is mounted on the sliding plate 66. The bottom of the mounting base 61 is mounted on the frame 7 through a guide rail and a slider guide structure. On the rear side of the left and right bearing guide devices 60, on the frame 7, there are front and rear drive cylinders 69 for driving the left and right bearing guide devices 60 to move back and forth as a whole. The front and rear drive cylinders 69 are driven by the mounting base 61.

[0028] In step 7, the sliding seat positioning device 30 first moves the sliding seat 1 so that the left bearing mounting hole 102 and the right bearing mounting hole 103 on the sliding seat 1 are directly aligned with the bearing guide post 67 of the left bearing guide device 62 and the right bearing guide device 63, respectively. Then, the third cylinder 68 of the left bearing guide device 62 drives the sliding plate 66 to move the bearing guide post 67 into the left bearing mounting hole 102 on the sliding seat 1, and the third cylinder 68 of the right bearing guide device 63 drives the sliding plate 66 to move the bearing guide post 67 into the right bearing mounting hole 103 on the sliding seat 1. In step 8, the left bearing 5 and the right bearing 6 are respectively press-fitted onto the bearing guide post 67 in the left bearing mounting hole 102 and the right bearing mounting hole 103.

[0029] like Figures 2 to 6 As shown, the left bearing storage device 70 and the right bearing storage device 90 are symmetrically arranged on the left and right sides of the left and right bearing guide device 60; specifically, as... Figure 21 and Figure 22 As shown, both the left bearing storage device 70 and the right bearing storage device 90 include a first bearing storage unit 71, a second bearing storage unit 72, a bearing positioning plate 73, an auxiliary pushing cylinder 74, an auxiliary pushing block 75, a pushing cylinder 76, and a pushing block 77. The first bearing storage unit 71 and the second bearing storage unit 72 each have a first bearing receiving cavity and a second bearing receiving cavity. The upper input port of the second bearing receiving cavity is connected to a bearing sliding groove 78, and the lower output port of the first bearing receiving cavity is connected to the bearing sliding groove 78. The bearing positioning plate 73 has a second bearing positioning groove 731. 31 is connected to the second bearing receiving cavity. The auxiliary pushing cylinder 74 is installed at the bottom of the first bearing storage 71. The auxiliary pushing block 75 is movably disposed on one side of the lower output port of the first bearing receiving cavity. The auxiliary pushing cylinder 74 drives the auxiliary pushing block 75 to push the bearing from the first bearing receiving cavity to the bearing sliding groove 78. The pushing cylinder 76 is disposed on one side of the second bearing storage 72. The pushing block 77 is movably disposed and one end extends into the second bearing receiving cavity. The pushing cylinder 76 drives the pushing block 77 to push the bearing from the second bearing receiving cavity into the second bearing positioning groove 731.

[0030] In step 8, the left bearing gripping and pressing device 80 and the right bearing gripping and pressing device 100 grip the bearings from the second bearing positioning grooves 731 of the left bearing storage device 70 and the right bearing storage device 90, respectively.

[0031] like Figures 2 to 6 As shown, the left bearing gripping and pressing device 80 and the right bearing gripping and pressing device 100 are symmetrically arranged on the left and right sides of the left and right bearing guide device 60; specifically, as... Figure 23 , Figure 24 and Figure 25As shown, both the left bearing gripping and pressing device 80 and the right bearing gripping and pressing device 100 include a seventh mounting plate 81 and a bearing pressing mechanism 82 and a bearing gripping mechanism 83 that are movable up and down and mounted on the seventh mounting plate 81. The bearing pressing mechanism 82 is located above the bearing gripping mechanism 83; wherein: The bearing pressing mechanism 82 includes a fourth cylinder 821, a third guide rail 822, a third slider, an eighth mounting plate 823, a bearing pressing cylinder 824, and a bearing pressing mold 825. The third guide rail 822 extends vertically and is mounted on the seventh mounting plate 81. The third slider is mounted on the eighth mounting plate 823 and is slidably adapted to the third guide rail 822. The fourth cylinder 821 is mounted on the seventh mounting plate 81 and is driven and connected to the eighth mounting plate 823. The bearing pressing cylinder 824 is mounted on the eighth mounting plate 823. The bearing pressing mold 825 is connected to the bearing pressing cylinder 824 and drives the bearing pressing mold 825 to move left and right. The bearing gripping mechanism 83 includes a fifth cylinder 831, a fourth slider, a ninth mounting plate 832, a fourth guide rail 833, a fifth slider 834, a tenth mounting plate 835, a sixth cylinder 836, a gripper cylinder 837, and a bearing gripper 838. The fourth slider is mounted on the ninth mounting plate 832 and slidably adapted to the third guide rail 822. The fifth cylinder 831 is mounted on the seventh mounting plate 81 and is driven by the ninth mounting plate 832. The rail 833 extends laterally and is mounted on the ninth mounting plate 832. The fifth slider 834 is mounted on the tenth mounting plate 835 and slides to fit the fourth guide rail 833. The sixth cylinder 836 is mounted on the ninth mounting plate 832 and is driven and connected to the tenth mounting plate 835. The gripper cylinder 837 is mounted on the tenth mounting plate 835. The bearing gripper 838 is connected to the gripper cylinder 837 and drives the bearing gripper 838 to move left and right.

[0032] In the left bearing storage device 70, left bearing gripping and pressing device 80, right bearing storage device 90, and right bearing gripping and pressing device 100 of the present invention: by symmetrically arranging the storage devices and gripping and pressing devices, the material picking, positioning, and pressing of the bearings on the left and right sides of the sliding seat can be completed simultaneously, which greatly improves the assembly efficiency, reduces the cycle time, and enables the automated design of synchronous storage, gripping, and pressing of left and right bearings, improving installation efficiency, accuracy, and production continuity. In addition, the symmetrical spacing of the left and right devices ensures operating space and facilitates integration with the production line, reducing the equipment footprint. By employing a cylinder-driven, guide rail, and slider structure, the entire process of automatic bearing feeding, positioning, gripping, and pressing is automated, reducing manual intervention and improving assembly consistency and reliability. The system features upper and lower double bearing positioning slots, a double feeding mechanism, double pressing molds, and double grippers, allowing for the simultaneous processing of multiple bearings and further enhancing production efficiency. Furthermore, the use of multi-stage cylinders in conjunction with guide rails ensures accurate positioning and smooth operation of bearings during gripping, transfer, and pressing, guaranteeing installation quality. The modular design facilitates adjustments based on bearing specifications and installation requirements, making it suitable for assembling bearings with different sliding seat models.

[0033] In step 8, the bearing pressing mechanism 82 and bearing gripping mechanism 83 of the left bearing gripping and pressing device 80 or the right bearing gripping and pressing device 100 move upward until the bearing gripper 838 of the bearing gripping mechanism 83 is directly facing the bearing. The gripper cylinder 837 of the bearing gripping mechanism 83 drives the bearing gripper 838 to grip the bearing. Then, the bearing pressing mechanism 82 and bearing gripping mechanism 83 continue to move upward until the bearing gripped by the bearing gripper 838 is directly facing the bearing mounting hole on the sliding seat 1. Finally, the sixth cylinder 836 of the bearing gripping mechanism 83 drives the tenth mounting plate 835 to move upward. The bearing gripper 838 moves toward the sliding seat 1 to push the bearing into the bearing mounting hole on the sliding seat 1. Then, the sixth cylinder 836 of the bearing gripping mechanism 83 drives the tenth mounting plate 835 to move the bearing gripper 838 back. The bearing pressing mechanism 82 and the bearing gripping mechanism 83 move downward until the bearing pressing mold 825 of the bearing pressing mechanism 82 is facing the bearing on the sliding seat 1. The bearing pressing cylinder 824 of the bearing pressing mechanism 82 drives the bearing pressing mold 825 to push the bearing and press the bearing into the bearing mounting hole on the sliding seat 1.

[0034] In summary, the key design features of this invention are: It automates the entire process from sliding seat positioning, gripping and pressing of the upper and lower bearings and spacers, to the synchronous guiding and pressing of the left and right bearings, significantly improving assembly efficiency and reducing manual intervention and labor intensity. Through multiple positioning structures, including the sliding seat positioning device and the left and right bearing guiding device, this invention ensures the positional accuracy of the bearings and spacers during the pressing process, preventing assembly defects or part damage due to misalignment. The various devices (such as storage devices, gripping devices, pressing devices, and guiding devices) are rationally laid out and coordinate their movements, achieving seamless integration between processes and suitable for flexible production needs involving multiple varieties and batches. The upper and lower bearing pressing device employs step-by-step pressing and positioning mold-assisted pressing, ensuring controllable pressing depth and force. The left and right bearing pressing device uses synchronous guiding and independent pressing, guaranteeing assembly consistency and reliability. The overall layout of the device is compact, suitable for pressing bearings with sliding seats of different sizes, and possesses good versatility and expandability, facilitating integration into automated production lines.

Claims

1. A pressing method for a sliding bearing pressing device, characterized in that: The sliding bearing pressing device includes a frame and upper and lower bearing storage and pushing devices, spacer storage devices, sliding seat positioning devices, upper and lower bearing gripping devices, upper and lower bearing pressing devices, left and right bearing guiding devices, left bearing storage devices, left bearing gripping and pressing devices, right bearing storage devices, and right bearing gripping and pressing devices, all mounted on the frame. The sliding bearing press-fitting device includes the following steps during press-fitting: Step 1, Positioning the sliding block: Place the sliding block on the sliding block positioning device, which is positioned in the initial position; Step 2, Grab and press the lower bearing: The upper and lower bearing grabbing device grabs the lower bearing from the upper and lower bearing storage and pushing device and moves it to the corresponding position on the sliding seat of the sliding seat positioning device. Then the sliding seat positioning device moves to the bottom of the upper and lower bearing pressing device, and the upper and lower bearing pressing device presses the lower bearing down into the lower side of the upper and lower bearing mounting hole on the sliding seat. Step 3: The sliding seat positioning device retracts to one side of the upper and lower bearing gripping device; Step 4: Grab and press-fit spacer: The upper and lower bearing gripping device grabs the spacer from the spacer storage device and moves it to the corresponding position on the sliding seat of the sliding seat positioning device. Then the sliding seat positioning device moves to the bottom of the upper and lower bearing pressing device, and the upper and lower bearing pressing device presses the spacer down into place at the upper end of the lower bearing in the upper and lower bearing mounting holes on the sliding seat. Step 5: The sliding seat positioning device retracts to one side of the upper and lower bearing gripping device; Step 6: Grab and press the upper bearing: The upper and lower bearing grabbing device grabs the upper bearing from the upper and lower bearing storage and pushing device and moves it to the corresponding position on the sliding seat of the sliding seat positioning device. Then the sliding seat positioning device moves to the bottom of the upper and lower bearing pressing device, and the upper and lower bearing pressing device presses the upper bearing down to the upper end of the spacer in the upper and lower bearing mounting hole on the sliding seat. Step 7: The sliding seat positioning device moves to the left and right bearing guide device, and the left and right bearing guide device guides and positions the sliding seat left and right. Step 8: Grab and press the left and right bearings: The left bearing grabbing and pressing device grabs the left bearing from the left bearing storage device and presses it into the left bearing mounting hole on the sliding seat to the right. The right bearing grabbing and pressing device grabs the right bearing from the right bearing storage device and presses it into the right bearing mounting hole on the sliding seat to the left. Step 9: The left and right bearing guide devices release their guide positioning on the sliding seat, and the sliding seat positioning device returns to its initial position.

2. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The spacer storage device and the upper and lower bearing storage and pushing device are respectively located on the left and right sides of the sliding seat positioning device. The upper and lower bearing gripping device is located above the front side of the sliding seat positioning device. The upper and lower bearing gripping device can reciprocate between the upper and lower bearing storage and pushing device, the spacer storage device, and the sliding seat positioning device. The upper and lower bearing pressing device and the left and right bearing guiding device are arranged with a front-to-back spacing. The sliding seat positioning device can reciprocate between the upper and lower bearing pressing device and the left and right bearing guiding device. The left bearing storage device and the right bearing storage device are respectively located on the left and right sides of the left and right bearing guiding device. The left bearing gripping and pressing device and the right bearing gripping and pressing device are respectively located on the left side of the left bearing storage device and the right side of the right bearing storage device. The left bearing gripping and pressing device can reciprocate between the left bearing storage device and the left and right bearing guiding device. The right bearing gripping and pressing device can reciprocate between the right bearing storage device and the left and right bearing guiding device.

3. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The upper and lower bearing storage and pushing device includes an upper and lower bearing storage device and an upper and lower bearing pushing device connected to the output side of the upper and lower bearing storage device. The upper and lower bearing storage device includes an arc-shaped bearing storage tray, a straight bearing conveying track, a bearing pull rod, a pull rod drive unit, a bearing push block, and a bearing push drive unit. The input port of the straight bearing conveying track is connected to the output port of the arc-shaped bearing storage tray. The bearing push block is movably located in the conveying groove of the straight bearing conveying track and is located beside the input port of the straight bearing conveying track. The bearing push drive unit is located on one side of the straight bearing conveying track and is driven and connected to the bearing push block. One end of the bearing pull rod is located in the storage space of the arc-shaped bearing storage tray, and the pull rod drive unit is driven and connected to the other end of the bearing pull rod. The pull rod drive unit drives the bearing pull rod to rotate. The upper and lower bearing pushing device includes a first mounting plate and a bearing positioning rail, a pusher plate, and a side pusher cylinder mounted on the first mounting plate. The bearing positioning rail has a sliding groove and a first bearing positioning groove connected to the sliding groove. The inlet of the sliding groove is connected to the outlet of the straight bearing conveying rail. The pusher plate is located on one side of the sliding groove. The side pusher cylinder is driven and connected to the pusher plate. The side pusher cylinder drives the pusher plate to push the bearing in the sliding groove into the first bearing positioning groove. In steps 2 and 6, the upper and lower bearing gripping devices grip the bearing from the first bearing positioning groove.

4. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The spacer storage device includes a second mounting plate and a spacer storage container, a spacer pusher plate, and a spacer pushing cylinder mounted on the second mounting plate. The spacer storage container is mounted above the second mounting plate via a base. The base has a spacer receiving cavity. The lower end outlet of the spacer storage container is connected to the upper end of the spacer receiving cavity. A spacer positioning groove is provided on one side of the base on the second mounting plate. The outlet of the spacer receiving cavity is connected to the spacer positioning groove. The spacer pushing cylinder is mounted below the second mounting plate. The spacer pusher plate is laterally movable and mounted in the base and located on one side of the spacer receiving cavity. The spacer pusher plate is connected to the spacer pushing cylinder. The spacer pushing cylinder drives the spacer pusher plate to push the spacer out of the spacer receiving cavity into the spacer positioning groove. In step 4, the upper and lower bearing gripping devices grip the spacer from the spacer positioning groove.

5. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The sliding seat positioning device includes a first guide rail, a first slider, a first drive motor, a first lead screw, a first connecting seat, a mounting seat, a support column, a third mounting plate, a sliding seat positioning block, upper and lower bearing guide columns, and a first cylinder; The first guide rail is mounted on the frame and extends along the front-rear direction below the upper and lower bearing gripping devices and the upper and lower bearing pressing devices. The first drive motor is mounted on the frame and is connected to the first lead screw. The first connecting seat is mounted above the mounting base and is connected to the first lead screw via a first lead screw nut. The first slider is mounted below the mounting base and slidably adapted to the first guide rail. The support column is mounted between the mounting base and the third mounting plate. The first cylinder is mounted below the third mounting plate via a cylinder mounting bracket. The sliding seat positioning block is mounted above the third mounting plate. The upper and lower bearing guide columns are vertically movable and pass through the third mounting plate. The upper and lower bearing guide columns are mounted on the plate and located on one side of the sliding seat positioning block. The lower ends of the upper and lower bearing guide columns are connected to the first cylinder. The upper and lower bearing guide columns are provided with a sliding seat positioning surface, a bearing positioning surface, and a bearing guide surface from bottom to top. The sliding seat positioning surface is the upper surface of the sliding seat positioning boss that protrudes outward in the circumferential direction from the lower end of the upper and lower bearing guide columns. The bearing positioning surface is the circumferential side surface of the upper and lower bearing guide columns. The bearing guide surface extends upward from the upper end of the bearing positioning surface to the upper end of the upper and lower bearing guide columns. The first cylinder drives the upper and lower bearing guide columns to move upward so that the sliding seat positioning surface is exposed on the upper surface of the third mounting plate, so that the lower surface of the sliding seat is supported and positioned by the sliding seat positioning surface. In step 1, the sliding seat is positioned on the upper surface of the third mounting plate, the upper and lower bearing guide pins extend out of the upper surface of the sliding seat through the upper and lower bearing mounting holes on the sliding seat, the sliding seat abuts against the sliding seat positioning block, and the sliding seat positioning surface abuts against the lower surface of the sliding seat. In steps 2, 4 and 6, the lower bearing, spacer, and upper bearing are all press-fitted onto the guide pillars of the upper and lower bearings.

6. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The upper and lower bearing gripping device includes a support frame, a crossbeam, a second guide rail, a second slider, a fourth mounting plate, a gripping cylinder, a gripper, a rack, a gear, and a second drive motor. The support frame is mounted on the machine frame, the crossbeam is mounted on the upper end of the support frame, the second guide rail is mounted on the rear side of the crossbeam, the rack is mounted on the upper side of the crossbeam, the second slider is mounted on the fourth mounting plate and slidably adapted to the second guide rail, the second drive motor is mounted on the fourth mounting plate through a motor mounting seat, the second drive motor drives the gear to rotate, the gear meshes with the rack, the gripping cylinder is mounted on the fourth mounting plate and drives the gripper, the gripper is located below the fourth mounting plate.

7. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The upper and lower bearing press-fitting device includes a connecting column, a support plate, a fifth mounting plate, a first guide column, a second guide column, a press-fitting mold, a third drive motor, a second lead screw, a second connecting seat, a press-fitting plate, a positioning mold, a mold gripper, a positioning plate, and a second cylinder; The connecting column is mounted on the frame, the support plate is mounted in the middle of the connecting column, the fifth mounting plate is mounted on the upper end of the connecting column, the third drive motor is mounted above the fifth mounting plate, the pressing mold is movable up and down through the support plate, the upper end of the pressing mold is connected to the pressing plate, the second connecting seat is mounted on the pressing plate, the second connecting seat is connected to the second lead screw through the second lead screw nut, the upper end of the second lead screw passes through the fifth mounting plate and is connected to the third drive motor, the first guide column is movable up and down through the fifth mounting plate, the lower end of the first guide column is connected to the upper end of the pressing plate, the second cylinder is mounted above the fifth mounting plate and located on one side of the third drive motor, the positioning plate is located below the fifth mounting plate, the second cylinder is driven and connected to the positioning plate, the mold gripper is mounted on the lower end of the positioning plate, the positioning mold is gripped below the mold gripper, the second guide column is movable up and down through the fifth mounting plate, the lower end of the second guide column is connected to the upper end of the positioning plate; In steps 2, 4, or 6, the sliding seat positioning device first moves the sliding seat below the pressing mold. Then, the third drive motor drives the pressing mold downward to press the lower bearing, spacer, or upper bearing into the upper and lower bearing mounting holes on the sliding seat until the upper surface of the lower bearing, spacer, or upper bearing is flush with the upper surface of the sliding seat. The third drive motor then drives the pressing mold upward away from the sliding seat. Next, the sliding seat positioning device moves the sliding seat below the positioning mold. Finally, the second cylinder drives the mold gripper downward to lower the positioning mold onto the lower bearing, spacer, or upper bearing mounting hole on the sliding seat. Above the bearing layer, the second cylinder drives the mold gripper to move upward and disengage from the positioning mold. Then, the sliding seat positioning device moves the sliding seat to below the pressing mold. Next, the third drive motor drives the pressing mold to move downward and push against the positioning mold, so that the positioning mold presses the lower bearing, spacer, or upper bearing into place. Then, the third drive motor drives the pressing mold to move upward and away from the positioning mold. Then, the sliding seat positioning device moves the sliding seat to below the positioning mold. Then, the second cylinder drives the mold gripper to move downward and grasp the positioning mold. Finally, the second cylinder drives the mold gripper to grasp the positioning mold and move upward to remove it.

8. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The left and right bearing guide devices include a mounting base and a left bearing guide device and a right bearing guide device symmetrically arranged on the mounting base. Each left bearing guide device and right bearing guide device includes a sixth mounting plate, a sliding guide post, a sliding plate, a bearing guide post, and a third cylinder. The sixth mounting plate is mounted on the mounting base. One end of the sliding guide post is connected to the sixth mounting plate. The sliding plate is slidably mounted on the other end of the sliding guide post. The third cylinder is mounted on the sixth mounting plate and is driven by the sliding plate. The bearing guide post is mounted on the sliding plate. In step 7, the sliding seat positioning device first moves the sliding seat so that the left bearing mounting hole and the right bearing mounting hole on the sliding seat are respectively aligned with the bearing guide post of the left bearing guide device and the right bearing guide device. Then, the third cylinder of the left bearing guide device drives the sliding plate to move the bearing guide post into the left bearing mounting hole on the sliding seat, and the third cylinder of the right bearing guide device drives the sliding plate to move the bearing guide post into the right bearing mounting hole on the sliding seat. In step 8, the left and right bearings are press-fitted onto the bearing guide posts inside the left and right bearing mounting holes, respectively.

9. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The left and right bearing storage devices are symmetrically arranged on the left and right sides of the left and right bearing guide devices. Each of the left and right bearing storage devices includes a first bearing storage unit, a second bearing storage unit, a bearing positioning plate, an auxiliary pushing cylinder, an auxiliary pushing block, a pushing cylinder, and a pushing block. The first and second bearing storage units each have a first bearing receiving cavity and a second bearing receiving cavity. The upper inlet of the second bearing receiving cavity is connected to a bearing sliding groove, and the lower outlet of the first bearing receiving cavity is connected to the bearing sliding groove. The bearing positioning plate has a second... The bearing positioning groove is connected to the second bearing receiving cavity. The auxiliary pushing cylinder is installed at the bottom of the first bearing storage unit. The auxiliary pushing block is laterally movable and located on one side of the lower output port of the first bearing receiving cavity. The auxiliary pushing cylinder drives the auxiliary pushing block to push the bearing out of the first bearing receiving cavity into the bearing sliding groove. The pushing cylinder is located on one side of the second bearing storage unit. The pushing block is laterally movable and one end extends into the second bearing receiving cavity. The pushing cylinder drives the pushing block to push the bearing out of the second bearing receiving cavity into the second bearing positioning groove. In step 8, the left bearing gripping and pressing device and the right bearing gripping and pressing device grip the bearings from the second bearing positioning grooves of the left bearing storage device and the right bearing storage device, respectively.

10. The pressing method of the sliding seat bearing pressing device according to claim 1, characterized in that: The left bearing gripping and pressing device and the right bearing gripping and pressing device are symmetrically arranged on the left and right sides of the left and right bearing guide device. The left bearing gripping and pressing device and the right bearing gripping and pressing device each include a seventh mounting plate and a bearing pressing mechanism and a bearing gripping mechanism that can move up and down and are mounted on the seventh mounting plate. The bearing pressing mechanism is located on the upper side of the bearing gripping mechanism. The bearing pressing mechanism includes a fourth cylinder, a third guide rail, a third slider, an eighth mounting plate, a bearing pressing cylinder, and a bearing pressing mold. The third guide rail extends vertically and is mounted on the seventh mounting plate. The third slider is mounted on the eighth mounting plate and is slidably adapted to the third guide rail. The fourth cylinder is mounted on the seventh mounting plate and is driven and connected to the eighth mounting plate. The bearing pressing cylinder is mounted on the eighth mounting plate. The bearing pressing mold is connected to the bearing pressing cylinder and drives the bearing pressing mold to move left and right. The bearing gripping mechanism includes a fifth cylinder, a fourth slider, a ninth mounting plate, a fourth guide rail, a fifth slider, a tenth mounting plate, a sixth cylinder, a gripper cylinder, and a bearing gripper. The fourth slider is mounted on the ninth mounting plate and slidably adapted to the third guide rail. The fifth cylinder is mounted on the seventh mounting plate and driven and connected to the ninth mounting plate. The fourth guide rail extends laterally and is mounted on the ninth mounting plate. The fifth slider is mounted on the tenth mounting plate and slidably adapted to the fourth guide rail. The sixth cylinder is mounted on the ninth mounting plate and driven and connected to the tenth mounting plate. The gripper cylinder is mounted on the tenth mounting plate. The bearing gripper is connected to the gripper cylinder, and the gripper cylinder drives the bearing gripper to move left and right. In step 8, the bearing pressing mechanism and bearing gripping mechanism of the left or right bearing gripping pressing device move upward until the bearing gripper of the bearing gripping mechanism is facing the bearing. The gripper cylinder of the bearing gripping mechanism drives the bearing gripper to grip the bearing. Then, the bearing pressing mechanism and bearing gripping mechanism continue to move upward until the bearing gripped by the bearing gripper is facing the bearing mounting hole on the sliding seat. Then, the sixth cylinder of the bearing gripping mechanism drives the tenth mounting plate to move the bearing gripped by the bearing gripper toward the sliding seat, so as to push the bearing into the bearing mounting hole on the sliding seat. Then, the sixth cylinder of the bearing gripping mechanism drives the tenth mounting plate to move the bearing gripper back. The bearing pressing mechanism and bearing gripping mechanism move downward until the bearing pressing mold of the bearing pressing mechanism is facing the bearing on the sliding seat. The bearing pressing cylinder of the bearing pressing mechanism drives the bearing pressing mold to push the bearing and press the bearing into place in the bearing mounting hole on the sliding seat.

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