A bearing press-in mounting structure

Abstract

The utility model relates to bearing press -mounting technical field, and disclose a kind of for bearing press -in installation structure, lower locating seat and press -mounting head seat are set to split type and are connected installation to lower locating seat and press -mounting head seat by slot jointing, flexible dressing can be carried out to lower locating seat and press -mounting head seat according to bearing specification during work, drive installation is carried out to feeding clamp using sliding table drive cylinder, jacking drive cylinder and jaw drive cylinder cooperation, quick positioning installation and installation feeding of bearing workpiece can be realized during work, can effectively improve the feeding installation precision of bearing workpiece while saving manpower consumption, using upper end adsorption cooperation side portion jointing type bearing positioning structure, the stable suspension support limit of bearing workpiece can be realized, bearing workpiece automatic press -mounting separation can be realized without positioning clamp block expansion during press -mounting process, positioning deviation caused by positioning clamp block expansion can be avoided, beneficial to the improvement of bearing workpiece press -mounting work stability and press -mounting precision.

Description

Technical Field

[0001] This utility model relates to the field of bearing press-fitting technology, specifically to a structure for press-fitting bearings. Background Technology

[0002] In the assembly of various mechanical equipment, bearing installation is a crucial task. Currently, common bearing installation methods mainly include manual hammering, simple lever prying, and the use of ordinary presses. Among these, manual hammering not only makes it difficult to ensure the perpendicularity and coaxiality of the bearing installation, but also easily causes local damage to the bearing. Simple lever prying, due to its low operational precision, cannot effectively control the magnitude and direction of the pressing force, which may lead to the bearing being misaligned or jammed. Compared with manual hammering and lever prying, presses have better clamping stability and are easier to operate, making them the main equipment used for bearing press-fitting.

[0003] To ensure press-fit accuracy, the bearing and the press-fit workpiece need to be positioned and installed by a positioning seat during the processing. The positioning structure of existing press-fit equipment is mostly fixed, which can only position and support bearings of specific specifications during operation. The working flexibility is poor, and the working feeding of bearings often requires manual installation, which not only makes it difficult to guarantee the installation accuracy but also consumes manpower and is very inconvenient to use. Therefore, a bearing press-fit installation structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a bearing press-fit structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing press-fitting installation structure, comprising a press-fitting mechanism and a feeding mechanism, wherein the press-fitting mechanism comprises a supporting base plate, a mounting bracket, a mounting guide post, a press-fitting drive cylinder, a press-fitting bracket, a lower positioning seat, and a press-fitting head seat, wherein the press-fitting drive cylinder is supported and installed on the upper part of the supporting base plate through the mounting bracket and the mounting guide post, the press-fitting bracket is supported and installed on the upper part of the mounting bracket, and the lower positioning seat and the press-fitting head seat are respectively detachably installed on the upper part of the press-fitting bracket and the push rod side of the press-fitting drive cylinder;

[0006] The feeding mechanism includes a channel rail support, a support slide, a slide drive cylinder, a lifting drive cylinder, a gripper drive cylinder, and a feeding gripper. The support slide is slidably mounted on the upper part of the channel rail support by the slide drive cylinder. The gripper drive cylinder is mounted on the upper part of the support slide by the lifting drive cylinder. The feeding gripper is mounted on the drive side of the gripper drive cylinder. A positioning block is detachably mounted on the inner edge of the feeding gripper. A positioning side block is provided on the upper part of the inner groove side of the positioning block, and a strong magnetic attraction block is provided on the lower part of the positioning side block.

[0007] Preferably, the aforementioned mounting bracket is fixedly mounted on the upper part of the support base plate, and the mounting guide columns are arranged in pairs, with the two sets of mounting guide columns vertically fixedly mounted on both sides of the upper part of the mounting bracket.

[0008] Preferably, a cylinder mounting seat is fixedly installed on the upper end of the aforementioned mounting guide post, the press-fit drive cylinder is fixedly installed on the upper part of the cylinder mounting seat by bolts, a lifting guide seat is fixedly installed on the push rod end of the press-fit drive cylinder, guide bushings are fixedly provided on both sides of the lifting guide seat, the mounting guide post is slidably inserted into the shaft hole in the middle of the guide bushing, and a stroke limit post is fixedly installed on the upper part of the mounting support.

[0009] Preferably, a head seat mounting base is fixedly installed on the bottom center of the aforementioned lifting guide seat. The press-fit head seat is aligned and fitted with the lower groove of the head seat mounting base through a groove fitting. An installation positioning block is provided on the upper side of the press-fit head seat. After installation, the installation positioning block is aligned and fitted with the positioning groove provided on the side of the head seat mounting base. A limit bolt is installed in the screw hole in the middle of the installation positioning block. The press-fit head seat is fixedly installed to the head seat mounting base through the limit bolt.

[0010] Preferably, the press-fit support is fixedly installed on the upper part of the mounting base of the mounting support, and the lower part of the lower positioning seat is provided with a fitting protrusion, which is aligned and fitted with the fitting slot provided on the upper part of the press-fit support for support installation.

[0011] Preferably, the aforementioned rail support is fixedly installed on the upper part of the support base plate, and guide blocks are fixedly installed on both sides of the lower part of the support slide. The guide blocks are slidably fitted and supported by the guide rail provided on the upper part of the rail support. The slide drive cylinder is fixedly installed on the rear part of the rail support by a bracket, and the push rod end of the slide drive cylinder is fixedly installed on the support part at the rear of the support slide.

[0012] Preferably, the lifting drive cylinder is vertically fixedly installed on the top side of the support slide by means of a slot seat, the lower support part of the gripper drive cylinder is fixedly installed with the push rod end of the lifting drive cylinder, the feeding grippers are arranged in pairs, and the two sets of feeding grippers are fixedly installed with the two sets of gripper drive parts of the gripper drive cylinder by bolts respectively.

[0013] Preferably, the positioning clamps are arranged in pairs. The inner edge of the feeding gripper is provided with a fitting groove. The positioning clamp is fitted into the inner side of the fitting groove. A fastening bolt is installed in the screw hole provided on the edge of the fitting groove. The positioning clamp is fixedly installed on the inner side of the fitting groove by the fastening bolt. The inner edge of the positioning clamp is provided with a bearing clamping groove. The positioning side block is evenly fixedly installed on the upper part of the inner side of the bearing clamping groove. The strong magnetic suction block is fixedly fitted into the slot provided on the lower part of the positioning side block.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] 1. This device adopts a split and detachable positioning and installation structure. The lower positioning seat and the press-fitting head seat are set as separate units and connected and installed by slot fitting positioning. Disassembly and replacement are convenient. During operation, the lower positioning seat and the press-fitting head seat can be flexibly replaced according to the bearing specifications, so that the device can meet the press-fitting and positioning installation requirements of bearings of different specifications, greatly improving the working flexibility of the device.

[0016] 2. The working feeding structure adopts a side-shifting clamp type. The sliding table drive cylinder, lifting drive cylinder and gripper drive cylinder work together to drive the feeding gripper. During operation, it can realize the rapid positioning and feeding of bearing workpieces. While saving manpower, it can effectively improve the feeding and installation accuracy of bearing workpieces, which is conducive to improving the processing efficiency and processing accuracy of the device.

[0017] 3. The bearing positioning structure adopts an upper adsorption and side fitting type. The bearing workpiece is fitted and positioned by the groove in the middle of the positioning clamp on the periphery. The positioning support of the positioning side block and the magnetic attraction limit of the strong magnetic block on the upper side can realize the stable suspension support limit of the bearing workpiece. During the press-fitting process, the bearing workpiece can be automatically press-fitted and separated without the need for the positioning clamp to expand outward. This avoids the positioning deviation caused by the expansion of the positioning clamp and is conducive to improving the stability and accuracy of the press-fitting of the bearing workpiece. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall installation front structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall installation rear structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the working installation structure of the press-fit head seat of this utility model;

[0022] Figure 4 This is a schematic diagram of the working installation structure of the lower positioning seat of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the feeding mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the working installation structure of the positioning clamp and feeding gripper of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Support base plate; 2. Mounting support; 3. Mounting guide column; 4. Pressing drive cylinder; 5. Pressing support; 6. Lower positioning seat; 7. Pressing head seat; 8. Lifting guide seat; 9. Head seat mounting seat; 10. Stroke limit column; 11. Channel rail support; 12. Support slide; 13. Slide drive cylinder; 14. Lifting drive cylinder; 15. Grip drive cylinder; 16. Feeding gripper; 17. Positioning clamp block; 18. Fitting slot; 19. Positioning side block; 20. Strong magnetic suction block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Example

[0029] Please see Figure 1-6 This utility model provides a technical solution: a bearing press-fitting structure, including a press-fitting mechanism and a feeding mechanism. The press-fitting mechanism is used for press-fitting bearing workpieces. The press-fitting mechanism includes a supporting base plate 1, a mounting support 2, a mounting guide post 3, a press-fitting drive cylinder 4, a press-fitting support 5, a lower positioning seat 6, and a press-fitting head seat 7. The press-fitting drive cylinder 4 is supported and mounted on the upper part of the supporting base plate 1 through the mounting support 2 and the mounting guide post 3. Specifically, see attached... Figure 2As shown, the mounting bracket 2 is fixedly supported and installed on the upper part of the support base plate 1. The mounting guide pillars 3 are arranged in pairs, with two sets of mounting guide pillars 3 vertically fixedly installed on both sides of the upper part of the mounting bracket 2. The press-fit drive cylinder 4 can be a pneumatic cylinder. To facilitate the support and installation of the press-fit drive cylinder 4, a cylinder mounting seat is fixedly installed on the upper end of the mounting guide pillar 3. The press-fit drive cylinder 4 is fixedly installed on the upper part of the cylinder mounting seat by bolts. To facilitate the movement and guidance of the press-fit head seat 7, as shown in the attached figure... Figure 3 As shown, a lifting guide seat 8 is fixedly installed at the push rod end of the press-fit drive cylinder 4. Guide bushings are fixedly installed on both sides of the lifting guide seat 8. The mounting guide post 3 is slidably inserted into the shaft hole in the middle of the guide bushing. In order to limit the lower stop stroke of the lifting guide seat 8, a stroke limit post 10 is fixedly installed on the upper part of the mounting support 2. An adjusting bolt is installed on the upper part of the stroke limit post 10. The lower stop stroke of the lifting guide seat 8 can be adjusted and limited by turning the adjusting bolt to change the lifting amount.

[0030] As attached Figure 3 As shown, to facilitate the docking and installation of the press-fit head seat 7, a head seat mounting base 9 is fixedly installed in the middle of the bottom side of the lifting guide seat 8. The press-fit head seat 7 is installed by fitting into the groove of the lower part of the head seat mounting base 9. An installation positioning block is provided on the upper side of the press-fit head seat 7. After installation, the installation positioning block is aligned and fitted into the positioning groove provided on the side of the head seat mounting base 9. In order to achieve the locking limit of the press-fit head seat 7 after installation, a limit bolt is installed in the screw hole in the middle of the installation positioning block. The press-fit head seat 7 is fixedly installed to the head seat mounting base 9 by the limit bolt. The press-fit support 5 is used for supporting the installation of the lower positioning base 6, as shown in the attached figure. Figure 4 As shown, the press-fit support 5 is fixedly installed on the upper part of the mounting support 2. The lower part of the lower positioning seat 6 is provided with a fitting boss. The fitting boss is aligned and fitted with the fitting slot provided on the upper part of the press-fit support 5 for support and installation. The lower positioning seat 6 and the press-fit head seat 7 are respectively detachably installed on the upper part of the press-fit support 5 and the lower part of the head seat mounting seat 9 on the push rod side of the press-fit drive cylinder 4. The positioning and installation structure adopts a split and detachable type. The lower positioning seat 6 and the press-fit head seat 7 are set as separate parts and connected and installed by the slot fitting and positioning. Disassembly and replacement are convenient. During operation, the lower positioning seat 6 and the press-fit head seat 7 can be flexibly replaced according to the bearing specifications, so that the device can meet the press-fit positioning and installation requirements of bearings of different specifications.

[0031] The feeding mechanism is used for clamping and feeding bearing workpieces. The feeding mechanism includes a grooved rail support 11, a support slide 12, a slide drive cylinder 13, a lifting drive cylinder 14, a gripper drive cylinder 15, and a feeding gripper 16. The support slide 12 is slidably mounted on the upper part of the grooved rail support 11 via the slide drive cylinder 13. Specifically, see attached... Figure 5As shown, the rail support 11 is fixedly installed on the upper part of the support base plate 1. In order to realize the sliding support of the support slide 12, guide blocks are fixedly installed on both sides of the lower part of the support slide 12. The guide blocks slide and engage with the guide rail provided on the upper part of the rail support 11. The slide drive cylinder 13 can be a pneumatic cylinder. The slide drive cylinder 13 is fixedly installed on the rear part of the rail support 11 by a bracket. The push rod end of the slide drive cylinder 13 is fixedly installed on the support part at the rear of the support slide 12. The gripper drive cylinder 15 is driven by the lifting drive cylinder 14 and installed on the upper part of the support slide 12. Specifically, both the lifting drive cylinder 14 and the gripper drive cylinder 15 are pneumatic cylinders. The lifting drive cylinder 14 is vertically fixed to the top center of the support slide 12 via a slotted seat and is used to lift the feeding gripper 16. The lower support of the gripper drive cylinder 15 is fixedly installed to the push rod end of the lifting drive cylinder 14 and is used to clamp the feeding gripper 16. The working feeding structure adopts a side-moving clamp type. The slide drive cylinder 13, the lifting drive cylinder 14 and the gripper drive cylinder 15 work together to drive the feeding gripper 16. During operation, it can realize the rapid positioning and feeding of bearing workpieces. While saving manpower, it can effectively improve the feeding and installation accuracy of bearing workpieces, which is conducive to improving the processing efficiency and processing accuracy of the device.

[0032] The feeding gripper 16 is mounted on the drive side of the gripper drive cylinder 15, as detailed in the attached diagram. Figure 5 As shown, the feeding grippers 16 are arranged in pairs. The two sets of feeding grippers 16 are fixedly installed to the two sets of gripper drive parts of the gripper drive cylinder 15 by bolts. The inner edge of the feeding gripper 16 is detachably equipped with a positioning clamping block 17. Specifically, see attached... Figure 6As shown, the positioning clamping blocks 17 are arranged in pairs. To facilitate the connection and installation of the positioning clamping blocks 17, a fitting groove 18 is provided on the inner edge of the feeding jaw 16. The positioning clamping blocks 17 are fitted into the inner side of the fitting groove 18. Fastening bolts are installed in the screw holes provided on the edge of the fitting groove 18. The positioning clamping blocks 17 are fixedly installed on the inner side of the fitting groove 18 by the fastening bolts. To facilitate the clamping and positioning of the bearing workpiece, a bearing clamping groove is provided on the inner edge of the positioning clamping block 17. To achieve the support and positioning of the upper end of the bearing workpiece, a positioning side block 19 is provided on the upper part of the inner groove side of the positioning clamping block 17. The positioning side blocks 19 are evenly fixedly installed on the upper part of the inner side of the bearing clamping groove. To achieve the clamping and positioning of the bearing workpiece, a positioning side block 19 is provided on the upper part of the inner groove side of the positioning clamping block 17. The bearing workpiece is attracted and positioned by a strong magnetic block 20 located at the lower part of the positioning block 19. The strong magnetic block 20 is fixedly fitted into the slot at the lower part of the positioning block 19. The bearing positioning structure adopts an upper adsorption and side fitting type. The bearing workpiece is fitted and positioned by the slot in the middle of the positioning clamp 17 on the periphery. The positioning support of the positioning block 19 and the magnetic attraction of the strong magnetic block 20 on the upper side can realize the stable suspension support and positioning of the bearing workpiece. During the press-fitting process, the bearing workpiece can be automatically press-fitted and separated without the need for the positioning clamp 17 to expand outward. This avoids the positioning deviation caused by the expansion of the positioning clamp 17 and is conducive to improving the stability and accuracy of the press-fitting of the bearing workpiece.

[0033] Working principle or structural principle: The device is suitable for press-fitting of bearings made of magnetic materials. During processing, the lower positioning seat 6 and press-fitting head seat 7 of the corresponding specifications are selected according to the specifications of the bearing workpiece. Then, the lower positioning seat 6 and press-fitting head seat 7 are installed on the upper part of the press-fitting support 5 and the head seat mounting seat 9, respectively. After completion, the bearing workpiece and the press-fitting workpiece are respectively positioned and installed in the grooves of the lower positioning seat 6 and the positioning clamping block 17. After installation, the upper part of the bearing workpiece is supported and positioned by the positioning side block 19 and is attracted and limited by the strong magnetic suction block 20. Then, the slide table drive cylinder 13 drives the support slide table 12 to move forward, and the lifting drive cylinder 14 and the gripper drive cylinder 15 cooperate to make the bearing... The workpiece and the pressing workpiece are coaxially distributed and aligned with the bearing mounting groove in the middle of the pressing workpiece, completing the pressing calibration of the bearing workpiece and the pressing workpiece. After completion, the pressing head seat 7 is driven to move down by the pressing drive cylinder 4. The pressing head seat 7 applies a uniform downward pressure to the upper part of the bearing workpiece. The downward pressure separates the bearing workpiece from the strong magnetic attraction block 20 under the positioning block 19 and presses it precisely into the pressing workpiece, completing the pressing work. During the pressing process, the bearing workpiece can be automatically pressed and separated without the positioning clamp 17 expanding outward, which can avoid the positioning deviation caused by the expansion of the positioning clamp 17 and improve the stability and pressing accuracy of the bearing workpiece pressing work.

[0034] In summary, this device adopts a split and detachable positioning and installation structure. The lower positioning seat 6 and the pressing head seat 7 are set as separate units and connected and installed by slot fitting positioning. Disassembly and replacement are convenient. During operation, the lower positioning seat 6 and the pressing head seat 7 can be flexibly replaced according to the bearing specifications, so that the device can meet the pressing and positioning installation requirements of bearings of different specifications, greatly improving the working flexibility of the device. It adopts a side-moving clamp type working feeding structure, and uses the slide drive cylinder 13, the lifting drive cylinder 14 and the gripper drive cylinder 15 to drive the feeding gripper 16 for installation. During operation, it can realize the rapid positioning and installation of bearing workpieces. The feeding mechanism saves manpower and effectively improves the loading and installation accuracy of bearing workpieces, which is beneficial to improving the processing efficiency and accuracy of the device. It adopts a bearing positioning structure with upper adsorption and side fitting. The bearing workpiece is fitted and positioned by the slot in the middle of the positioning clamp 17 on the periphery. The positioning support of the positioning side block 19 and the magnetic attraction limit of the strong magnetic block 20 on the upper side can realize the stable suspension support limit of the bearing workpiece. During the pressing process, the bearing workpiece can be automatically pressed and separated without the need for the positioning clamp 17 to expand outward. This avoids the positioning deviation caused by the expansion of the positioning clamp 17 and is beneficial to improving the stability and pressing accuracy of the bearing workpiece pressing operation.

[0035] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A bearing press-fitting structure, comprising a press-fitting mechanism and a feeding mechanism, characterized in that, The pressing mechanism includes a support base plate (1), a mounting bracket (2), a mounting guide column (3), a pressing drive cylinder (4), a pressing support (5), a lower positioning seat (6), and a pressing head seat (7). The pressing drive cylinder (4) is supported and installed on the upper part of the support base plate (1) through the mounting bracket (2) and the mounting guide column (3). The pressing support (5) is supported and installed on the upper part of the mounting bracket (2). The lower positioning seat (6) and the pressing head seat (7) are detachably installed on the upper part of the pressing support (5) and the push rod side of the pressing drive cylinder (4), respectively. The feeding mechanism includes a channel rail support (11), a support slide (12), a slide drive cylinder (13), a lifting drive cylinder (14), a gripper drive cylinder (15), and a feeding gripper (16). The support slide (12) is driven and slidably mounted on the upper part of the channel rail support (11) by the slide drive cylinder (13). The gripper drive cylinder (15) is driven and mounted on the upper part of the support slide (12) by the lifting drive cylinder (14). The feeding gripper (16) is mounted on the drive side of the gripper drive cylinder (15). A positioning clamping block (17) is detachably mounted on the inner edge of the feeding gripper (16). A positioning side block (19) is provided on the upper part of the inner groove side of the positioning clamping block (17). A strong magnetic suction block (20) is provided on the lower part of the positioning side block (19).

2. The bearing press-fit structure according to claim 1, characterized in that, The mounting bracket (2) is fixedly mounted on the upper part of the support base plate (1). The mounting guide columns (3) are arranged in pairs, and the two sets of mounting guide columns (3) are vertically fixedly mounted on the upper sides of the mounting bracket (2).

3. The bearing press-fit structure according to claim 2, characterized in that, A cylinder mounting seat is fixedly installed on the upper end of the mounting guide post (3). The press-fit drive cylinder (4) is fixedly installed on the upper part of the cylinder mounting seat by bolts. A lifting guide seat (8) is fixedly installed on the push rod end of the press-fit drive cylinder (4). Guide bushings are fixedly provided on both sides of the lifting guide seat (8). The mounting guide post (3) is slidably inserted into the shaft hole in the middle of the guide bushing. A stroke limit post (10) is fixedly installed on the upper part of the mounting support (2).

4. The bearing press-fit structure according to claim 3, characterized in that, A head seat mounting base (9) is fixedly installed on the bottom center of the lifting guide seat (8). The press-fit head seat (7) is aligned and fitted with the lower slot of the head seat mounting base (9) through a slot fitting. An installation positioning block is provided on the upper side of the press-fit head seat (7). After installation, the installation positioning block is aligned and fitted with the positioning slot provided on the side of the head seat mounting base (9). A limit bolt is installed in the screw hole in the middle of the installation positioning block. The press-fit head seat (7) is fixedly installed with the head seat mounting base (9) through the limit bolt.

5. A bearing press-fit structure according to claim 4, characterized in that, The press-fit support (5) is fixedly installed on the upper part of the mounting support (2). The lower part of the lower positioning seat (6) is provided with a fitting protrusion. The fitting protrusion is aligned and fitted with the fitting slot provided on the upper part of the press-fit support (5) for support and installation.

6. The bearing press-fit structure according to claim 1, characterized in that, The rail support (11) is fixedly installed on the upper part of the support base plate (1). Guide slot blocks are fixedly installed on both sides of the lower part of the support slide (12). The guide slot blocks are slidably fitted and supported by the guide rail provided on the upper part of the rail support (11). The slide drive cylinder (13) is fixedly installed on the rear part of the rail support (11) by a bracket. The push rod end of the slide drive cylinder (13) is fixedly installed on the support part at the rear of the support slide (12).

7. A bearing press-fit structure according to claim 6, characterized in that, The lifting drive cylinder (14) is vertically fixedly installed on the top side of the support slide (12) by means of the slot seat. The lower support of the gripper drive cylinder (15) is fixedly installed with the push rod end of the lifting drive cylinder (14). The feeding grippers (16) are arranged in pairs. The two sets of feeding grippers (16) are fixedly installed with the two sets of gripper drive parts of the gripper drive cylinder (15) by bolts.

8. A bearing press-fit structure according to claim 7, characterized in that, The positioning clamps (17) are arranged in pairs. The inner edge of the feeding clamp (16) is provided with a fitting groove (18). The positioning clamps (17) are fitted and installed inside the fitting groove (18). A fastening bolt is installed in the screw hole provided on the edge of the fitting groove (18). The positioning clamps (17) are fixedly installed inside the fitting groove (18) by the fastening bolt. The inner edge of the positioning clamps (17) is provided with a bearing clamping groove. The positioning side blocks (19) are evenly fixed and installed on the upper part of the inner side of the bearing clamping groove. The strong magnetic suction block (20) is fixedly fitted and installed with the slot provided on the lower part of the positioning side block (19).

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