Automatic bearing press fitting station

Abstract

This invention relates to the field of automation equipment technology and discloses an automatic bearing press-fitting workstation. It includes a main control cabinet, a support frame, a multi-axis robot, a three-jaw internal support fixture, and auxiliary mechanisms. The auxiliary mechanisms include a mold device, a reference base, a fixed base, a servo press-fitting machine, a press-fitting head, and a drive device. During processing, the workpiece is first transported and fixed by a feeding robot and a mold device. Then, the bearing is fed into the inner cavity of the reference base by the cooperation of two multi-axis robots and the three-jaw internal support fixtures on their working heads. Afterward, the multi-axis robots and the three-jaw internal support fixtures are reset. Finally, the servo press-fitting machines on both sides drive the press-fitting head to simultaneously press-fit the bearing, thus solving the problem that existing bearing devices cannot simultaneously press-fit both sides of a workpiece.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and in particular to an automatic bearing press-fitting workstation. Background Technology

[0002] Bearings are components used in most mechanical equipment to support the rotation of shaft parts. Existing bearing press-fitting devices have both vertical and horizontal structures.

[0003] Vertical bearing press-fitting devices require the operator to manually place a bearing into the mounting hole of a vertically fixed workpiece, and then press the bearing in using a press-fitting machine. This type of press-fitting device has low efficiency, a high operational risk, and relatively high labor intensity for the operator. While horizontal bearing press-fitting machines reduce the risk to some extent, the pressing process involves pressing one end of the bearing first, followed by the other end, which results in lower press-fitting efficiency for rotor bearings. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic bearing press-fitting workstation that solves the problem that existing bearing devices cannot simultaneously press-fit bearings on both sides of a workpiece.

[0005] To achieve the above objectives, the present invention provides an automatic bearing press-fitting workstation; including a main control cabinet, a bracket mounted on the main control cabinet, multi-axis robots electrically connected to the main control cabinet symmetrically suspended on the bracket, a three-jaw internal support clamp provided on the working head of the multi-axis robot, and auxiliary mechanisms; The auxiliary mechanism includes a mold device, a reference base, a fixed base, a servo press machine, and a drive device. The mold device is located on the top of the main control cabinet and in the middle of the two multi-axis robots. The reference base is installed on both sides of the mold device, and its inner cavity is slidably connected to the bearing to be press-fitted. The inner cavity is also concentric with the bearing through hole on the mold device. The fixed base is detachably connected to the main control cabinet and is symmetrically arranged. The servo press machine is installed on the fixed base, and its output end is equipped with a press head. The drive device is located on the side of the bracket near the mold device.

[0006] The three-jaw internal support fixture consists of a housing, a positioning plate, and an action mechanism. The housing is installed on the working head of the multi-axis robot, the positioning plate is installed inside the housing, and the action mechanism is located on the positioning plate.

[0007] The actuation mechanism includes a micro-motion cylinder, a insertion rod, a chuck, and a spring component. The micro-motion cylinder is mounted on the positioning plate. The insertion rod is mounted on the output end of the micro-motion cylinder and slidably inserted into the chuck. The chuck is disposed inside the housing and is detachably connected to the inner ring of the bearing to be press-fitted. The spring component is disposed on the side of the positioning plate near the chuck.

[0008] The mold device includes a lower mold and an upper mold. The lower mold is fixed to the top of the main control cabinet. The upper mold is disposed on top of the lower mold and connected to the output end of the drive device.

[0009] The driving device includes a hanger and a hydraulic cylinder. The hanger is suspended on the support. The hydraulic cylinder is mounted on the hanger, and its output end is connected to the upper mold.

[0010] It also includes an isolation mechanism, which includes a plug-in base and a mating device. The plug-in base is installed at the bottom of the main control cabinet and is arranged symmetrically on the left and right sides. The mating device is disposed on the plug-in base.

[0011] The fitting device includes a support frame and guard rods. The support frame is detachably connected to the insert seat. The bottoms of the guard rods are welded to the support frame, and the tops of the guard rods are interconnected by rectangular strips.

[0012] The present invention discloses an automatic bearing press-fitting workstation. During processing, the workpiece is first transported and fixed by a feeding robot and a mold device. Then, the bearing is fed into the inner cavity of the reference seat by two multi-axis robots and the three-jaw internal support fixtures on their working heads. After that, the multi-axis robots and the three-jaw internal support fixtures are reset. Finally, the bearing is pressed simultaneously by the servo press-fitting machines on both sides. This solves the problem that existing bearing devices are difficult to press-fit bearings on both sides of the workpiece at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the automatic bearing press-fitting workstation according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the three-jaw internal support clamp according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the overall structure of the automatic bearing press-fitting workstation according to the second embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the stabilizing mechanism according to the third embodiment of the present invention.

[0018] In the diagram: 101-Main control cabinet, 102-Bracket, 103-Multi-axis robot, 104-Three-jaw internal support fixture, 1041-Housing, 1042-Positioning plate, 1043-Micro-motion cylinder, 1044-Insertion rod, 1045-Claw, 1046-Spring component, 105-Base seat, 106-Fixed seat, 107-Servo press machine, 108-Press head, 109-Lower mold, 110-Upper mold, 111-Hanger, 112-Hydraulic cylinder, 113-Bearing to be pressed, 201-Insertion seat, 202-Support frame, 203-Guard rod, 301-Stabilizing seat, 302-Linear bearing. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] First embodiment: like Figure 1 and Figure 2 As shown, this invention provides an automatic bearing press-fitting workstation, comprising a main control cabinet 101, a support 102, a multi-axis robot 103, a three-jaw internal support fixture 104, and an auxiliary mechanism. The auxiliary mechanism includes a mold device, a reference base 105, a fixed base 106, a servo press-fitting machine 107, a press-fitting head 108, and a drive device. The three-jaw internal support fixture 104 consists of a housing 1041, a positioning plate 1042, and an actuation mechanism. The actuation mechanism includes a micro-motion cylinder 1043, an insertion rod 1044, a jaw 1045, and a spring component 1046. The mold device includes a lower mold 109 and an upper mold 110. The drive device includes a hanger 111 and a hydraulic cylinder 112. This solution solves the problem that existing bearing devices cannot simultaneously press-fit bearings on both sides of a workpiece. It is understood that the aforementioned solution can simultaneously press-fit bearings on both sides of a workpiece.

[0021] In this embodiment, a bracket 102 is installed on the main control cabinet 101. A multi-axis robot 103, electrically connected to the main control cabinet 101, is symmetrically suspended on the bracket 102. A three-jaw internal support clamp 104 is provided on the working head of the multi-axis robot 103. The main control cabinet 101 houses a control PLC, servo driver, and other equipment. The multi-axis robot 103 directly adopts existing industrial robot technology. A workpiece loading robot (not shown in the figure) can be installed on the front side of the main control cabinet 101, and a bearing conveying device (not shown in the figure) can be installed on the rear side. Furthermore, all standard parts used in this application can be purchased commercially, and can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The control method is automatic control through a controller. The controller's control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly for protecting mechanical devices, the control method and circuit connection will not be explained in detail here.

[0022] Preferably, the mold device is located on top of the main control cabinet 101, between the two multi-axis robots 103. The reference base 105 is installed on both sides of the mold device, with its inner cavity slidably connected to the bearing 113 to be pressed, and the inner cavity is concentric with the bearing through hole on the mold device. The fixed base 106 is detachably connected to the main control cabinet 101 and symmetrically arranged. The servo press machine 107 is installed on the fixed base 106, and its output end is equipped with a press head 108. The drive device is located on the side of the bracket 102 near the mold device. The mold device is used to fix the workpiece. After installation, the reference base 105 fits against the lower mold 109 and is slidably connected to the upper mold 110. The fixed base 106 is used for mounting and supporting the servo press machine 107. The press head 108 is driven by the servo press machine 107 to achieve linear movement. The servo press machine 107 can use a servo electric cylinder pushing structure to drive the press head 108.

[0023] Preferably, the housing 1041 is mounted on the working head of the multi-axis robot 103, the positioning plate 1042 is mounted inside the housing 1041, and the actuation mechanism is disposed on the positioning plate 1042. The positioning plate 1042 is fixed by positioning pins and bolts, and the housing 1041 is provided with a through hole for the air pipe of the micro-motion cylinder 1043.

[0024] Preferably, the micro-motion cylinder 1043 is mounted on the positioning plate 1042; the insertion rod 1044 is mounted on the output end of the micro-motion cylinder 1043 and slidably inserted into the jaw 1045; the jaw 1045 is disposed within the housing 1041 and detachably connected to the inner ring of the bearing 113 to be press-fitted; the spring component 1046 is disposed on the side of the positioning plate 1042 near the jaw 1045. The micro-motion cylinder 1043 is a product capable of installing a magnetic ring switch, facilitating feedback of the loosened or clamped state. The insertion rod 1044 is integrally mounted on the output rod of the micro-motion cylinder 1043 and has a tapered stop for easy insertion. During operation, the micro-motion cylinder 1043 moves the insertion rod 1044, which in turn moves the three jaws 1045 and compresses the spring of the spring component 1046, thereby tightening the inner ring of the bearing. The opened jaws 1045 engage with the inner ring of the bearing to be pressed and transferred. Finally, the multi-axis robot 103 drives the three-jaw internal support fixture 104 to move and insert the bearing onto the reference seat 105. Limit blocks are welded to the guide rods of the jaws 1045 for positioning. After the micro-motion cylinder 1043 retracts, the spring of the spring component 1046 can push the three jaws 1045 closer together inward.

[0025] Preferably, the lower mold 109 is fixed to the top of the main control cabinet 101; the upper mold 110 is disposed on the top of the lower mold 109 and connected to the output end of the drive device. Both the lower mold 109 and the upper mold 110 are fixed by positioning pins and bolts respectively, and both are provided with forming cavities adapted to the shape of the workpiece. After the two are engaged, sliding cavities are formed on the left and right sides for the bearing 113 to be pressed and slid.

[0026] Preferably, the hanger 111 is suspended on the bracket 102; the hydraulic cylinder 112 is mounted on the hanger 111, and its output end is connected to the upper mold 110. The hanger 111 is welded to the bracket 102 to facilitate the installation of the hydraulic cylinder 112.

[0027] When using this invention to solve the problem that existing bearing devices cannot simultaneously press-fit bearings to both sides of a workpiece, the process first involves conveying and fixing the workpiece using a feeding robot (not shown in the figure) and the mold device. Then, the bearings are fed into the inner cavity of the reference seat 105 by the cooperation of two multi-axis robots 103 and the three-jaw internal support clamps 104 on their working heads. After that, the multi-axis robots 103 and the three-jaw internal support clamps 104 are reset (without interfering with the movement of the pressing head 108). Finally, the servo pressing machines 107 on both sides drive the pressing head 108 to achieve simultaneous pressing of the bearings, thereby solving the problem that existing bearing devices cannot simultaneously press-fit bearings to both sides of a workpiece.

[0028] Second embodiment: like Figure 3 As shown in the first embodiment, the present invention provides an automatic bearing press-fitting workstation that further includes an isolation mechanism, the isolation mechanism comprising a cartridge holder 201 and a mating device. The mating device includes a support frame 202 and a guard rod 203.

[0029] The insertion socket 201 is installed at the bottom of the main control cabinet 101 and is arranged symmetrically on the left and right sides; the mating device is provided on the insertion socket 201. The perforated lug on the insertion socket 201 is fixed by bolts.

[0030] Secondly, the support frame 202 is detachably connected to the insert seat 201; the bottoms of the plurality of guard rods 203 are welded to the support frame 202, and the tops of the plurality of guard rods 203 are interconnected by rectangular strips. The T-shaped portion of the support frame 202 mates with the non-through T-shaped grooves arranged from front to back on the insert seat 201, and the front side of the insert seat 201 is fixed with a bolt to limit the support frame 202. The guard rods 203 are used to form a protective isolation structure.

[0031] In this embodiment, the structure of the insert 201, the support frame 202, and the guard rod 203 can isolate and protect the areas where auxiliary equipment is installed on the left and right sides of the workstation.

[0032] Third embodiment: like Figure 4 As shown in the first embodiment, the present invention provides an automatic bearing press-fitting workstation that further includes a stabilizing mechanism, the stabilizing mechanism including a stabilizing seat 301 and a linear bearing 302.

[0033] The stabilizer 301 is mounted on the top of the main control cabinet 101; the linear bearing 302 is mounted on the stabilizer 301 and slides in cooperation with the round rod on the output end of the servo press machine 107. The stabilizer 301 is fixed by locating pins and bolts, and the linear bearing 302 is a T-shaped linear sliding bearing.

[0034] In this embodiment, the stabilizer 301 and the linear bearing 302 will help improve the guiding fit when the round rod on the output end of the servo press machine 107 slides.

[0035] It should be noted that the illustrations provided in the above embodiments are for illustrative purposes only and represent schematic diagrams, not actual physical images. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the figures. All technologies, shapes, and structural parts not described in detail in this invention are well-known technologies.

[0036] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An automatic bearing press-fitting workstation, comprising a main control cabinet, a bracket mounted on the main control cabinet, and multi-axis robots electrically connected to the main control cabinet symmetrically suspended on the bracket, wherein a three-jaw internal support clamp is provided on the working head of the multi-axis robot; Its features are, It also includes auxiliary mechanisms; The auxiliary mechanism includes a mold device, a reference base, a fixed base, a servo press machine, and a drive device. The mold device is located on the top of the main control cabinet and in the middle of the two multi-axis robots. The reference base is installed on both sides of the mold device, and its inner cavity is slidably connected to the bearing to be press-fitted. The inner cavity is also concentric with the bearing through hole on the mold device. The fixed base is detachably connected to the main control cabinet and is symmetrically arranged. The servo press machine is installed on the fixed base, and its output end is equipped with a press head. The drive device is located on the side of the bracket near the mold device.

2. The automatic bearing press-fitting workstation as described in claim 1, characterized in that, The three-jaw internal support fixture consists of a housing, a positioning plate, and an actuation mechanism. The housing is installed on the working head of the multi-axis robot, the positioning plate is installed inside the housing, and the actuation mechanism is located on the positioning plate.

3. The automatic bearing press-fitting workstation as described in claim 2, characterized in that, The actuation mechanism includes a micro-motion cylinder, a insertion rod, a chuck, and a spring component. The micro-motion cylinder is mounted on the positioning plate. The insertion rod is mounted on the output end of the micro-motion cylinder and slidably inserted into the chuck. The chuck is disposed inside the housing and is detachably connected to the inner ring of the bearing to be press-fitted. The spring component is disposed on the side of the positioning plate near the chuck.

4. The automatic bearing press-fitting workstation as described in claim 1, characterized in that, The mold device includes a lower mold and an upper mold. The lower mold is fixed to the top of the main control cabinet. The upper mold is disposed on top of the lower mold and is connected to the output end of the drive device.

5. The automatic bearing press-fitting workstation as described in claim 4, characterized in that, The drive device includes a hanger and a hydraulic cylinder. The hanger is suspended on the support. The hydraulic cylinder is mounted on the hanger, and its output end is connected to the upper mold.

6. The automatic bearing press-fitting workstation as described in claim 1, characterized in that, It also includes an isolation mechanism, which includes a socket and a mating device. The socket is installed at the bottom of the main control cabinet and is arranged symmetrically on the left and right sides. The mating device is disposed on the socket.

7. The automatic bearing press-fitting workstation as described in claim 6, characterized in that, The mating device includes a support frame and guard rods. The support frame is detachably connected to the insert seat. The bottoms of the multiple guard rods are welded to the support frame, and the tops of the multiple guard rods are connected to each other by rectangular strips.

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