A pressing device for deep groove ball bearing production

Abstract

The application discloses a pressing device for deep groove ball bearing production and belongs to the technical field of bearing pressing. The pressing device comprises a machining table and a retainer, a pressing assembly for bearing pressing is arranged above the retainer, the pressing assembly comprises a hydraulic machine arranged above the retainer, and a rotating mechanism for storing and replacing pressing heads of different sizes is arranged between the hydraulic machine and the retainer. When the pressing device is used, a No. 3 servo motor is used to drive the clamping assembly to synchronously rotate in the circumferential direction together with a spare pressing head to be clamped through the meshing transmission of a No. 2 main gear and a No. 2 gear disc, so that the outer thread of a receiving seat and the inner thread of the pressing head are automatically engaged and screwed in the relative rotation, the tool-free automatic type changing of the pressing head and the rapid switching of zero manual correction are realized, the coaxiality deviation and the eccentric load phenomenon caused by individual differences in manual die changing operation are eliminated, the force is uniformly vertical when the pressing head is riveting the retainer, and therefore the type changing efficiency of the deep groove ball bearing production and the product batch consistency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of bearing pressing technology, and more specifically, to a pressing device for the production of deep groove ball bearings. Background Technology

[0002] In the manufacturing process of deep groove ball bearings, the cage rivets need to be cold-extruded and deformed by a pressing device to lock the upper and lower cages. Due to the diversification of market demand, the same production line often needs to frequently switch to produce different models of bearings. The cage thickness, rivet diameter and distribution circle size of bearings of different sizes are significantly different, requiring the pressing device to be able to quickly change the pressure head assembly.

[0003] Existing pressing equipment generally adopts manual mold changing. During operation, the machine must be stopped first, and tools must be used to remove the fastening bolts one by one to remove the current pressing head and mold. Then, the next model of pressing head and mold is manually moved to the equipment, and the coaxiality and parallelism are repeatedly corrected with tools such as feeler gauges and dial indicators. Finally, production can only be resumed after multiple pressure tests to confirm that the parameters are qualified. However, when dealing with the operation of changing multiple sets of pressing heads, traditional manual changing is not only time-consuming, but the positioning accuracy also depends on the human hand. Different operators may have inconsistent operations when pressing bearings, which can easily lead to loose riveting. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a pressing device for the production of deep groove ball bearings, which aims to solve the above-mentioned technical problems.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A pressing device for producing deep groove ball bearings includes a processing table. A protective box is fixedly connected to the upper surface of the processing table. The interior of the protective box has a workstation for placing a bearing cage, and the top of the protective box has a removable top sealing plate. A pressing assembly for pressing the bearing is located directly above the cage. The pressing assembly includes a hydraulic press located directly above the cage. A receiving seat is fixedly connected to the output end of the hydraulic press, and a pressing head is threaded onto the outer surface of the receiving seat. A rotating mechanism for storing and replacing pressing heads of different sizes is provided between the hydraulic press and the cage. The rotating mechanism includes a first and a second storage cylinder symmetrically arranged on both sides of the hydraulic press. Dust covers are fixedly connected to the tops of both cylinders. A third servo motor is fixedly installed at the center of the top of each dust cover, and the output end of the third servo motor is fixedly connected to a second main gear through the dust cover. A first cylinder frame is arranged around the interior of both cylinders, and a clamping assembly is located inside the first cylinder frame. The clamping assembly is used to clamp a spare pressure head and, driven by the second main gear, drives the first cylinder frame and the clamped pressure head to rotate synchronously, accurately delivering the pressure head of the target size directly below the hydraulic press and aligning it coaxially with the receiving seat. The hydraulic press descends, causing the receiving seat and the pressure head to engage threadedly, completing the automatic shape change. This replaces manual disassembly and repeated correction, enabling rapid switching between different sized bearing pressing stations.

[0007] As a further aspect of the present invention: the clamping assembly includes an annular plate sleeved on the outer wall of the first cylinder frame, a clamping plate fixedly connected to the inner wall of the annular plate, the clamping plate being engaged in a guide groove in the side wall of the first cylinder frame; a second gear plate meshing with the second main gear is fixedly connected to the outer edge of the top of the annular plate; electric telescopic rods are fixedly installed on both sides of the inner wall of the annular plate, and clamping plates are fixedly connected to the telescopic ends of the electric telescopic rods; a lifting mechanism for adjusting the height of the rotating mechanism and a displacement assembly for driving the lifting mechanism to move horizontally along the rear side of the processing table are provided on the rear surface of the processing table.

[0008] As a further aspect of the present invention: the displacement component includes a slot frame fixed to the rear side of the upper surface of the processing table, a slide block slidably connected inside the slot frame, and the slide block and the slot frame are driven and connected by a second hydraulic rod; the lifting mechanism includes a limiting frame fixedly installed on the upper surface of the slide block, and sliders are fixed on both sides of the bottom of the limiting frame, and the sliders are slidably engaged in the guide groove of the slot frame.

[0009] As a further aspect of the present invention: a first servo motor is fixedly installed on the top of the limiting frame; limiting slots are opened on both sides of the limiting frame in the vertical direction; a bidirectional threaded rod is fixedly connected to the output end of the first servo motor; a partition sleeve is provided in the middle of the bidirectional threaded rod and is fixedly connected to the inner wall of the limiting frame; a first threaded seat and a second threaded seat are respectively provided on the upper and lower sides of the partition sleeve and are threadedly connected to the bidirectional threaded rod; a driving mechanism is provided on the front side of the limiting frame to adjust the rotational position of the first and second storage cylinders.

[0010] As a further embodiment of the present invention: the driving mechanism includes an L-shaped support arm fixedly connected to both sides of the No. 1 threaded seat and the No. 2 threaded seat. The L-shaped support arm is fixedly connected to an annular receiving frame through the limiting slot. The No. 1 receiving cylinder is rotatably connected inside the annular receiving frame, and a No. 1 gear plate is fixedly sleeved on its outer circular surface. An arc-shaped slot is opened on the side of the annular receiving frame near the limiting frame. A support rod is fixedly connected to the upper surface of the L-shaped support arm. A No. 2 servo motor is fixedly connected to one side of the support rod. The output end of the No. 2 servo motor is fixedly connected to a No. 1 main gear. The No. 1 main gear meshes with the No. 1 gear plate to drive the No. 1 receiving cylinder to rotate circumferentially inside the annular receiving frame to switch the pressure head position.

[0011] As a further aspect of the present invention: the No. 1 storage cylinder and the No. 2 storage cylinder have the same structure and are symmetrically distributed vertically; the pressing assembly also includes a limiting rod that is vertically fixed to both sides of the output end of the hydraulic press to maintain the stable lifting and lowering of the receiving seat; a support platform is provided above the top sealing plate, and the four corners of the bottom of the support platform are fixedly connected to the top sealing plate through columns; a bracket assembly is also provided on the upper surface of the processing table, the bracket assembly includes support frames distributed at the four corners of the processing table, each support frame is embedded with a No. 1 hydraulic rod, and the telescopic ends of each No. 1 hydraulic rod are fixedly connected to a support plate for supporting the bearing to be processed.

[0012] As a further embodiment of the present invention: a cleaning mechanism is provided on the upper surface of the top sealing plate. The cleaning mechanism includes a first support frame fixedly connected to the upper surface of the top sealing plate. A vertical rod is fixedly connected to the upper surface of the first support frame, and a second support frame is fixedly connected to the vertical rod. A semi-circular ring is embedded in the middle of the first and second support frames, and a locking sleeve plate is threadedly connected to the outer surface of both. The first support frame, the second support frame, the semi-circular ring, and the locking sleeve plate together form a collection cylinder. An adsorption component is provided in the annular groove inside the first support frame. The adsorption component cooperates with the clamping component to adsorb and clean the metal debris attached to its surface before the pressure head is replaced.

[0013] As a further aspect of the present invention: the adsorption assembly includes an air pump fixedly installed on the top of the second support frame, the air pump's inlet end is connected to an air suction pipe, and the end of the air suction pipe is fixedly connected to an adsorption plate; the fixed end of the electric telescopic rod is fixed with a vertical plate for supporting the air suction pipe, the air pump's outlet end is connected to a delivery pipe, and the delivery pipe extends through a semi-circular ring into the collection cylinder for collecting the sucked-in debris.

[0014] As a further aspect of the present invention: the interior of the first storage cylinder is provided with storage slots, and each storage slot is provided with a receiving cylinder fixedly connected to the first storage cylinder at a corresponding position for accommodating the replaced pressure head.

[0015] As a further aspect of the present invention: a buffer cotton plate is fixedly connected to the clamping end face of the clamping plate to reduce contact wear during the replacement of the pressure head; the clamping plate is a hollow structure, and a pressure sensor is assembled on the inner wall of the side near the pressure head.

[0016] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects: This solution, through the setup of a pressing assembly, a rotating mechanism, and a clamping assembly, pre-stores multiple specifications of spare press heads in storage cylinders No. 1 and No. 2. During changeover, the displacement assembly drives the storage cylinders to move horizontally to directly below the hydraulic press for coaxial alignment. Then, a servo motor No. 3, through the meshing transmission of the No. 2 main gear and the No. 2 gear disc, drives the clamping assembly to synchronously rotate the clamped spare press heads in a circumferential direction. Simultaneously, the output end of the hydraulic press descends smoothly, causing the external thread of the receiving seat and the internal thread of the press head to automatically mesh and tighten during relative rotation. This achieves a rapid switch between tool-free automatic changeover of the press heads and zero-manual correction, eliminating coaxiality deviations and off-center loading caused by individual differences in manual mold changing operations. It ensures that the press heads are subjected to vertical and uniform force when riveting the retainer, thereby significantly improving the changeover efficiency and batch consistency of deep groove ball bearing production.

[0017] By setting up a displacement component, lifting mechanism, and drive mechanism, the second hydraulic rod drives the slide to move the limit frame and the storage cylinder to the hydraulic press and the retainer to achieve coaxial alignment. Then, the bidirectional threaded rod drives the first and second threaded seats to move towards each other, so that the first storage cylinder rises and approaches the receiving seat, and the second storage cylinder falls and approaches the retainer position. Then, the electric telescopic rod drives the clamping plate to clamp the old pressure head, and the third servo motor drives the clamping component to rotate to loosen and remove the old pressure head. Then, the second servo motor drives the first storage cylinder to rotate circumferentially to switch the spare pressure head to the bottom of the receiving seat. Then, the third servo motor drives the clamping component to rotate in the opposite direction to make the new pressure head engage with the threads of the receiving seat and tighten it. This process realizes the simultaneous automatic replacement of a set of pressure heads with independent or coordinated action of the upper and lower storage cylinders, which greatly shortens the changeover time, eliminates the problem of thread cross-threading caused by manual alignment deviation, and ensures the tightness and consistency of subsequent bearing riveting work.

[0018] By setting up a cleaning mechanism and adsorption components, a vacuum pump is activated to generate negative pressure suction before the pressure head replacement operation. The vertical plate lifts the suction pipe, causing the adsorption plate to be aligned with the pressure head surface and surrounding area to suck up metal debris. The debris is then collected into a collection cylinder via a conveying pipe. Simultaneously, utilizing the characteristic of the vertical plate rotating synchronously with the electric telescopic rod and the annular plate, the adsorption plate moves around the circumference of the pressure head to perform circumferential adsorption and cleaning. This achieves automatic adsorption and cleaning of metal debris adhering to the surface of the pressure head before each replacement, effectively avoiding indentations and incomplete riveting defects caused by debris residue, reducing abnormal wear on the mold working surface caused by foreign object embedding, and preventing secondary contamination of other moving parts of the equipment by debris splashing. This improves the operational reliability of the pressing device, extends the service life of the pressure head and mold, and ensures the riveting quality and product consistency of the deep groove ball bearing. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a schematic diagram showing the connection between the lifting mechanism and the driving mechanism of the present invention; Figure 4 This is an internal sectional view of the lifting mechanism of the present invention; Figure 5 This is a schematic diagram showing the connection between the drive mechanism and the rotating mechanism of the present invention; Figure 6 This is a schematic diagram of the internal structure of the first storage tube of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the clamping component of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the drive mechanism of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the cleaning mechanism of the present invention.

[0021] Figure label: 1. Processing table; 2. Protective box; 21. Top sealing plate; 3. Support platform; 31. Column; 4. Hydraulic press; 41. Limiting rod; 5. Press head; 6. Cage; 7. Support plate; 71. No. 1 hydraulic rod; 72. Support frame; 8. Lifting mechanism; 81. Limiting frame; 82. Limiting slot; 83. Servo motor No. 1; 84. Bidirectional threaded rod; 85. Separating sleeve; 86. Threaded seat No. 1; 87. Threaded seat No. 2; 9. Slide; 91. Slot bracket; 92. No. 2 hydraulic rod; 10. Drive mechanism; 101. L-shaped support arm; 102. Support rod; 103. Servo motor No. 2; 104. Main gear No. 1; 105. Annular housing; 106. Arc-shaped slot; 107. Gear plate No. 1; 11. Rotating mechanism; 111. Storage cylinder No. 1; 112. Dust cover; 113. Servo motor No. 3; 114. Main gear No. 2; 115. Cylinder frame No. 1; 116. Clamping assembly; 1161. Ring plate; 1162. Card plate; 1163. Gear plate No. 2; 1164. Electric telescopic rod; 1165. Clamping plate; 12. Storage Cylinder No. 2; 13. Cleaning mechanism; 131. First support bracket; 132. Upright pole; 133. Second support bracket; 134. Semicircular ring sleeve; 135. Locking sleeve plate; 136. Upright plate; 137. Air pump; 138. Suction pipe; 139. Adsorption plate; 1310. Conveying pipe.

[0022] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0023] The pressing device for producing deep groove ball bearings provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0024] like Figures 1 to 9 As shown, this embodiment of the invention provides a pressing device for producing deep groove ball bearings, including a processing table 1. A protective box 2 is fixedly connected to the upper surface of the processing table 1. The interior of the protective box 2 is provided with a workstation for placing a bearing cage 6, and the top of the protective box 2 is provided with a detachable top sealing plate 21. A pressing assembly for pressing the bearing is provided directly above the cage 6. The pressing assembly includes a hydraulic press 4 located directly above the cage 6. A receiving seat is fixedly connected to the output end of the hydraulic press 4, and a pressing head 5 is threadedly connected to the outer circular surface of the receiving seat. A rotating mechanism 11 for storing and replacing pressing heads 5 of different sizes is provided between the hydraulic press 4 and the cage 6. The rotating mechanism 11 includes a first storage cylinder 111 and a second storage cylinder 12 symmetrically arranged on both sides of the hydraulic press 4. A dust cover 112 is fixedly connected to the top of both the first and second storage cylinders 111 and 12. A third servo motor 113 is fixedly installed at the center of the top of the dust cover 112. The output end of the third servo motor 113 passes through the dust cover 112 and is fixedly connected to a second main gear 114. A first cylinder frame 1 is arranged around the interior of both the first and second storage cylinders 111 and 12. 15. The first cylinder frame 115 is equipped with a clamping assembly 116 inside. The clamping assembly 116 is used to clamp the spare pressure head 5. Under the drive of the second main gear 114, the first cylinder frame 115 and the clamped pressure head 5 are rotated synchronously. The pressure head 5 of the target size is accurately delivered to the hydraulic press 4 directly below and aligned with the receiving seat on the same axis. The hydraulic press 4 descends so that the receiving seat and the pressure head 5 are threadedly engaged to complete the automatic shape change, so as to replace manual disassembly and repeated correction, and realize the rapid switching of the pressing station of different sized bearings.

[0025] like Figures 1 to 9 As shown, the clamping assembly 116 includes an annular plate 1161 sleeved on the outer wall of the first cylinder frame 115. A clamping plate 1162 is fixedly connected to the inner wall of the annular plate 1161, and the clamping plate 1162 is engaged in the guide groove of the side wall of the first cylinder frame 115. A second gear disk 1163 that meshes with the second main gear 114 is fixedly connected to the top outer edge of the annular plate 1161. Electric telescopic rods 1164 are fixedly installed on both sides of the inner wall of the annular plate 1161. A clamping plate 1165 is fixedly connected to the telescopic end of the electric telescopic rod 1164. A lifting mechanism 8 for adjusting the height of the rotating mechanism 11 is provided on the rear side of the upper surface of the processing table 1, and a displacement assembly for driving the lifting mechanism 8 to move horizontally along the rear side of the processing table 1.

[0026] To address the problems of existing deep groove ball bearing pressing equipment, which relies on manual shutdowns to disassemble bolts and repeatedly correct coaxiality when changing press heads for multiple bearing models, resulting in long changeover times, poor positioning accuracy, and potential for loose riveting, the above-mentioned technical solution is adopted. This solution mainly consists of a pressing assembly and a rotating mechanism 11. When a press head 5 needs to be changed, firstly, the displacement assembly rotates the pre-stored target-size spare press head 5 in the first and second storage cylinders 111 to directly below the hydraulic press 4, achieving coaxial alignment with the receiving seat. Subsequently, the third servo motor 113 is activated, and its output drives the second main gear 114 to rotate. The second main gear 114, through its meshing second gear disc 1163, drives the annular plate 1161 and the clamping plate 1162, which is engaged in the guide groove of the first cylinder frame 115, causing the entire clamping assembly 116 to rotate synchronously circumferentially along with the clamped spare press head 5. During this rotation, the output end of the hydraulic press 4 descends smoothly. The external thread of the receiving seat and the internal thread of the spare pressure head 5 gradually mesh and tighten during relative rotation, completing the automatic installation and locking of the pressure head 5, realizing tool-free disassembly and rapid changeover with zero manual correction; after the changeover is completed, the displacement component is used again to move the entire No. 1 storage cylinder 111 and No. 2 storage cylinder 12 to the initial position. At this time, the hydraulic press 4 is started, driving the installed pressure head 5 to press down vertically, performing cold extrusion riveting deformation operation on the bearing cage 6 placed in the protective box 2 station; in actual operation, the gear transmission of the No. 3 servo motor 113 and the No. 2 main gear 114 can precisely control the rotation angle and stroke of the clamping component 116, ensuring that the pressure head 5 has a stable posture and no angular deviation during loading and unloading, eliminating the coaxiality deviation and off-center load phenomenon caused by individual differences in manual mold change operation, ensuring that the pressure head 5 is subjected to vertical and uniform force when riveting the cage 6, effectively avoiding weak riveting caused by misalignment, thereby significantly improving the changeover efficiency and batch consistency of deep groove ball bearing production.

[0027] Throughout the entire process of changing the pressure head 5, the clamping plate 1162 on the inner wall of the annular plate 1161 is always engaged in the guide groove on the side wall of the first cylinder frame 115. In conjunction with the meshing transmission of the second gear 1163 on the outer edge of the top of the annular plate 1161 and the second main gear 114, it is ensured that the pressure head 5 maintains a rigid and stable posture throughout the entire process of rotation and lifting alignment, without radial wobble or axial movement.

[0028] like Figures 1 to 9 As shown, the displacement assembly includes a slot frame 91 fixed to the rear side of the upper surface of the processing table 1. A slide block 9 is slidably connected inside the slot frame 91. The slide block 9 and the slot frame 91 are driven and connected by a second hydraulic rod 92. The lifting mechanism 8 includes a limiting frame 81 fixedly installed on the upper surface of the slide block 9. Slider blocks are fixed on both sides of the bottom of the limiting frame 81. The sliders slide and engage in the guide groove of the slot frame 91.

[0029] like Figures 1 to 9 As shown, a first servo motor 83 is fixedly installed on the top of the limiting frame 81. Limiting slots 82 are opened on both sides of the limiting frame 81 in the vertical direction. A bidirectional threaded rod 84 is fixedly connected to the output end of the first servo motor 83. A partition sleeve 85 is provided in the middle of the bidirectional threaded rod 84 and is fixedly connected to the inner wall of the limiting frame 81. A first threaded seat 86 and a second threaded seat 87 are respectively provided on the upper and lower sides of the partition sleeve 85 and are threadedly connected to the bidirectional threaded rod 84. A drive mechanism 10 is provided on the front side of the limiting frame 81 to adjust the rotational position of the first storage cylinder 111 and the second storage cylinder 12.

[0030] like Figures 1 to 9 As shown, the drive mechanism 10 includes an L-shaped support arm 101 fixedly connected to both sides of the first threaded seat 86 and the second threaded seat 87. The L-shaped support arm 101 passes through the limiting slot 82 and is fixedly connected to an annular receiving frame 105. The first receiving cylinder 111 is rotatably connected to the inside of the annular receiving frame 105, and a first gear 107 is fixedly sleeved on its outer circular surface. An arc-shaped slot 106 is opened on the side of the annular receiving frame 105 near the limiting frame 81. A support rod 102 is fixedly fixed on the upper surface of the L-shaped support arm 101. A second servo motor 103 is fixedly connected to one side of the support rod 102. A first main gear 104 is fixedly connected to the output end of the second servo motor 103. The first main gear 104 meshes with the first gear 107 and is used to drive the first receiving cylinder 111 to rotate circumferentially inside the annular receiving frame 105 to switch the pressure head 5 position.

[0031] During the process of changing the pressure head 5, the extension of the second hydraulic rod 92 drives the slide 9 to slide smoothly horizontally within the slot frame 91, causing the limiting frame 81 and its overall structure, which are fixed to the upper surface of the slide 9, to move forward. Simultaneously, the sliders on both sides of the bottom of the limiting frame 81 slide vertically along the guide groove of the slot frame 91, ensuring that the first storage cylinder 111 and the second storage cylinder 12 are directly below the hydraulic press 4 and directly above the retainer 6, respectively, and ensuring that the target-sized pressure head 5 is pre-aligned with the receiving seat of the hydraulic press 4 in spatial coordinates. After completion, by activating the first servo motor 83, the bidirectional threaded rod 84 rotates within the limiting frame 81, causing the first threaded seat 86 and the second threaded seat 87 to move in opposite directions along the limiting slot 82. During this process, the first threaded seat 86, through the L-shaped support arm 101, drives the annular receiving frame 105 and the first receiving cylinder 111 to rise, approaching the receiving seat of the hydraulic press 4; simultaneously, the second threaded seat 87 drives the second receiving cylinder 12 to descend, approaching the position of the retainer 6; after reaching the predetermined height, the corresponding electric extensions in each receiving cylinder... The extension rod 1164 extends, driving the clamping plates 1165 to clamp the old pressure head 5 currently mounted on the receiving seat. At this time, the third servo motor 113 is started, and through the meshing of the second main gear 114 and the second gear plate 1163, the entire clamping assembly 116 and the clamped old pressure head 5 are driven to rotate. Using the threaded engagement on the outer surface of the receiving seat, the old pressure head 5 is loosened and removed from the receiving seat. Next, the second servo motor 103 is started, and through the meshing of the first main gear 104 and the first gear plate 107, the first storage cylinder 111 is driven to move within the annular receiving frame 105. The inner circumferential rotation rotates the pre-stored required type of pressure head 5 to the direct under the receiving seat of the hydraulic press 4; the No. 3 servo motor 113 is started again to drive the clamping assembly 116 and the new pressure head 5 to rotate in the opposite direction, so that its internal thread engages and tightens with the external thread of the receiving seat, completing the automatic installation of the new pressure head 5; through the above operation, the upper and lower storage cylinders can operate independently or in coordination to achieve the simultaneous replacement of a set of pressure heads 5, greatly shortening the changeover time and eliminating the problem of thread cross-threading caused by manual alignment deviation, thereby ensuring the tightness and consistency of subsequent bearing riveting work.

[0032] like Figures 1 to 9 As shown, the No. 1 storage cylinder 111 and the No. 2 storage cylinder 12 have the same structure and are symmetrically distributed vertically; the pressing assembly also includes a limit rod 41 that is vertically fixed on both sides of the output end of the hydraulic press 4 to maintain the stable lifting and lowering of the receiving seat; a support platform 3 is provided above the top sealing plate 21, and the four corners of the bottom of the support platform 3 are fixedly connected to the top sealing plate 21 through the column 31; a bracket assembly is also provided on the upper surface of the processing table 1, the bracket assembly includes support frames 72 distributed at the four corners of the processing table 1, each support frame 72 is embedded with a No. 1 hydraulic rod 71, and the telescopic ends of each No. 1 hydraulic rod 71 are fixedly connected to a support plate 7 for supporting the bearing to be processed.

[0033] To address the problem in existing deep groove ball bearing pressing devices where the output end of the hydraulic press 4 is prone to circumferential swaying due to a lack of stable guidance during the riveting process, leading to decreased alignment accuracy between the press head 5 and the cage 6, and consequently uneven riveting force and cage cracking due to uneven pressure, this new device aligns the height of the conveying equipment for the bearing to be assembled with the pallet 7 during use. Then, according to the bearing specifications, the first hydraulic rod 71 is activated to drive the two pallets 7 to adjust to a suitable distance, ensuring that the pallets 7 provide stable support for the bearing to be processed and preventing the cage 6 from sinking or tilting under pressure during the pressing process. Subsequently, the hydraulic press 4 is activated, with its output end... The moving receiving seat and the pressure head 5 press down vertically. During this process, the limit rods 41, which are vertically fixed on both sides of the output end of the hydraulic press 4, rise and fall synchronously with the output end, constraining the movement trajectory of the receiving seat, effectively suppressing circumferential sway and radial movement, and ensuring that the pressure head 5 always acts on the rivets of the retainer 6 in a vertical posture, so that the riveting pressure is evenly transmitted and avoids local overpressure or false riveting caused by eccentric load. At the same time, the support platform 3 set above the top sealing plate 21 is fixedly connected to the top sealing plate 21 through the four corner columns 31, providing a stable installation foundation for the hydraulic press 4, enhancing the overall rigidity of the equipment, and further ensuring the stability and riveting accuracy of the pressing process.

[0034] like Figures 1 to 9 As shown, a cleaning mechanism 13 is provided on the upper surface of the top sealing plate 21. The cleaning mechanism 13 includes a first support frame 131 that is fixedly connected to the upper surface of the top sealing plate 21. A vertical rod 132 is fixedly connected to the upper surface of the first support frame 131, and a second support frame 133 is fixedly connected to the vertical rod 132. A semi-circular ring sleeve 134 is embedded in the middle of the first support frame 131 and the second support frame 133, and a locking sleeve plate 135 is threadedly connected to the outer surface of both. The first support frame 131, the second support frame 133, the semi-circular ring sleeve 134 and the locking sleeve plate 135 together form a collection cylinder. An adsorption component is provided in the annular groove inside the first support frame 131. The adsorption component cooperates with the clamping component 116 to adsorb and clean the metal debris attached to the surface of the pressure head 5 before it is replaced.

[0035] like Figures 1 to 9 As shown, the adsorption assembly includes a suction pump 137 fixedly installed on the top of the second support frame 133. The air inlet of the suction pump 137 is connected to a suction pipe 138, and the end of the suction pipe 138 is fixedly connected to an adsorption plate 139. An upright plate 136 for supporting the suction pipe 138 is fixed to the outside of the fixed end of the electric telescopic rod 1164. The air outlet of the suction pump 137 is connected to a delivery pipe 1310. The delivery pipe 1310 extends through the semi-circular ring sleeve 134 into the collection cylinder for collecting the sucked debris.

[0036] To address the problem that metal debris easily adheres to the surface of the pressure head 5 and the work area during the replacement and use of the existing deep groove ball bearing pressing device, and that if not cleaned in time, the debris is pressed into the riveting surface of the cage 6 during subsequent pressing, causing indentations, incomplete riveting, or accelerated mold wear, the above-mentioned technical solution is adopted. This solution mainly consists of a cleaning mechanism 13 and an adsorption assembly. Before the pressure head 5 replacement operation, the vacuum pump 137 is activated. The vacuum pump 137 generates negative pressure suction through the suction pipe 138 connected to the air inlet and the adsorption plate 139 at the end. The suction pipe 138 is supported and positioned by the upright plate 136 fixedly connected to the outside of the fixed end of the electric telescopic rod 1164, aligning the adsorption port of the adsorption plate 139 with the surface of the pressure head 5 and the surrounding area, sucking in the metal debris adhering to the surface of the pressure head 5. The sucked-in debris enters the vacuum pump 137 through the suction pipe 138, and then is conveyed through the delivery pipe 131 connected to the air outlet of the vacuum pump 137. The discharge pipe 1310 extends through the semi-circular ring sleeve 134 into the collection cylinder to collect the debris. The collection cylinder is composed of a first support frame 131 fixed around the upper surface of the top sealing plate 21, a second support frame 133 fixedly connected by a vertical rod 132, a semi-circular ring sleeve 134 embedded in the middle of the two, and a locking sleeve plate 135 threaded to the outer surface of the two. The structure is stable and easy to disassemble and clean. During the cleaning process, the vertical plate 136 is fixed. The upper surface of the electric telescopic rod 1164 is connected to one side, and the electric telescopic rod 1164 is fixedly installed on the inner wall of the annular plate 1161. Therefore, when the annular plate 1161 is driven by the second main gear 114 to rotate, the upright plate 136 and the suction pipe 138 and the adsorption plate 139 supported by it rotate synchronously with the clamping assembly 116, so that the adsorption plate 139 can move around the pressure head 5 in a circumferential direction, and perform circumferential adsorption on the outer circular surface and end face of the pressure head 5, thereby further improving the cleaning effect. Through the cooperation of the cleaning mechanism 13 and the adsorption component, the metal debris attached to the surface of the pressure head 5 is automatically adsorbed and cleaned before each replacement of the pressure head 5, which effectively avoids the indentation and false riveting defects caused by debris residue on the riveting surface, and reduces the abnormal wear caused by foreign objects embedded in the working surface of the mold. The debris is collected in the collection cylinder through the conveying pipe 1310, which prevents the debris from splashing and causing secondary pollution to other moving parts of the equipment, thereby improving the operational reliability of the pressing device, extending the service life of the pressure head 5 and the mold, and ensuring the riveting quality and product consistency of the deep groove ball bearing.

[0037] like Figures 1 to 9 As shown, the interior of the first storage cylinder 111 is provided with storage slots, and each storage slot is provided with a receiving cylinder fixedly connected to the first storage cylinder 111 to accommodate the replaced pressure head 5.

[0038] To address the issue that existing deep groove ball bearing pressing devices lack a dedicated storage location for the old pressure head 5 when replacing it, leading to potential damage to the working surface or incorrect retrieval due to mixed storage of different models of pressure heads 5, the following solution is implemented: After the clamping assembly 116 loosens and removes the old pressure head 5 from the receiving seat, the first storage cylinder 111 rotates under the drive of the third servo motor 113 and the second main gear 114, aligning the empty storage slot inside with the location of the currently removed old pressure head 5. Subsequently, the clamping assembly 116 places the old pressure head 5 into the receiving cylinder at the corresponding position of the storage slot. This receiving cylinder is fixedly connected to the first storage cylinder 111, providing a stable storage space for the removed pressure head 5, storing it separately from the spare pressure head 5, and achieving sealed protection through the dust cover 112 of the first storage cylinder 111.

[0039] like Figures 1 to 9 As shown, a buffer cotton plate is fixedly connected to the clamping end face of the clamping plate 1165 to reduce contact wear during the replacement of the pressure head 5; the clamping plate 1165 is a hollow structure, and a pressure sensor is installed on the inner wall of the side near the pressure head 5.

[0040] To address the issues in existing deep groove ball bearing pressing devices where the rigid clamping end face of the clamping component directly contacts the outer surface of the pressure head 5 during clamping, easily causing scratches or thread damage, and lacking real-time feedback on clamping force, making it difficult to determine if the clamping is in place, this device addresses these problems. During operation, when the electric telescopic rod 1164 drives the clamping plate 1165 to approach and clamp the pressure head 5, the buffer cotton plate fixedly connected to the clamping end face of the clamping plate 1165 first contacts the outer surface of the pressure head 5. The flexible material of the buffer cotton plate absorbs the contact impact force, preventing the metal end face from causing hard impact on the surface and threads of the pressure head 5. The clamping force is prevented from being scratched. Meanwhile, the pressure sensor installed inside the hollow structure of the clamping plate 1165, near the pressure head 5, detects the clamping force in real time. When the clamping force reaches the preset threshold, it sends a signal to the control system to control the electric telescopic rod 1164 to stop extending. This ensures that the clamping force meets the requirements for stable clamping without damaging the pressure head 5 due to over-clamping. It effectively solves the problems of contact wear and uncontrollable clamping force during the replacement of the pressure head 5, reduces the risk of shortened service life of the pressure head 5 and riveting off-center load caused by surface scratches or thread damage, and achieves safe and reliable clamping of the pressure head 5.

[0041] In use, this invention first activates the second hydraulic rod 92, driving the slide 9 to slide horizontally forward along the slot frame 91, causing the limiting frame 81 fixed to the upper surface of the slide 9 and its auxiliary structures to move forward as a whole, so that the first storage cylinder 111 and the second storage cylinder 12 reach directly below the receiving seat of the hydraulic press 4 and directly above the work position of the retainer 6, respectively, completing the initial spatial alignment; then, the first servo motor 83 is activated, driving the bidirectional threaded rod 84 to rotate, so that the first threaded seat 86 and the... The second threaded seat 87 moves towards the limiting groove 82; the first threaded seat 86 drives the annular receiving frame 105 and the first receiving cylinder 111 to rise through the L-shaped support arm 101, approaching the receiving seat of the hydraulic press 4; at the same time, the second threaded seat 87 drives the second receiving cylinder 12 to fall, approaching the position of the retainer 6; after rising and falling to the predetermined height, the corresponding electric telescopic rods 1164 in each receiving cylinder extend, driving the clamping plate 1165 to clamp the old pressure head 5 currently installed on the receiving seat.During the clamping process, the buffer cotton plate on the clamping end face of the clamping plate 1165 first contacts the outer circular surface of the pressure head 5 to prevent the metal end face from causing hard scratches to the pressure head 5; at the same time, the pressure sensor detects the clamping force in real time, and when it reaches the preset threshold, it feeds back a signal to control the electric telescopic rod 1164 to stop extending, ensuring that the clamping is safe and reliable; then, the air pump 137 is started, and negative pressure is generated through the suction pipe 138 and the suction plate 139 at the end to adsorb and clean the surface of the old pressure head 5 and the surrounding area, and the attached metal debris is collected into the collection cylinder through the conveying pipe 1310; during the cleaning process, since the upright plate 136 is fixedly connected to the outside of the fixed end of the electric telescopic rod 1164, when the annular plate 1161 is driven by the second main gear 114 During rotation, the adsorption plate 139 can move circumferentially around the pressure head 5, achieving full adsorption in the circumferential area. Then, the third servo motor 113 is activated, driving the entire clamping assembly 116 and the clamped old pressure head 5 to rotate through the meshing of the second main gear 114 and the second gear disk 1163. Utilizing the threaded engagement on the outer surface of the receiving seat, the old pressure head 5 is loosened and removed from the receiving seat. The first storage cylinder 111 rotates under the drive of the third servo motor 113 and the second main gear 114, aligning its internal empty storage slot with the removed old pressure head 5. The clamping assembly 116 then places the old pressure head 5 into the corresponding position of the receiving cylinder. Finally, the second servo motor 103 is activated, driving the first main gear 104 to mesh with the first gear disk 107. The first storage cylinder 111 rotates circumferentially within the annular receiving frame 105, rotating the pre-stored target-size spare pressure head 5 directly below the receiving seat of the hydraulic press 4, and achieving coaxial alignment with the receiving seat. Subsequently, the third servo motor 113 is restarted to drive the clamping assembly 116 and the new pressure head 5 to rotate in the opposite direction. During this rotation, the output end of the hydraulic press 4 descends smoothly, and the external thread of the receiving seat and the internal thread of the new pressure head 5 gradually mesh and tighten during relative rotation, completing the automatic installation and locking of the new pressure head 5. Throughout the entire changeover process, the clamping plate 1162 on the inner wall of the annular plate 1161 is always engaged in the guide groove on the side wall of the first cylinder frame 115, cooperating with the meshing transmission of the second gear disc 1163 and the second main gear 114 to ensure the pressure head 5 During the rotation and positioning process, the rigid posture remains stable, without radial wobble or axial movement. After the shape change is completed, the second hydraulic rod 92 retracts, driving the slide 9 to move the entire limiting frame 81 and the rotating mechanism 11 back to their initial positions, making room for pressing. Then, according to the bearing specifications, the first hydraulic rod 71 is activated, driving the two support plates 7 to adjust to a suitable distance, forming a stable support for the bearing retainer 6 to be processed, ensuring that it will not sink or tilt due to force during the pressing process. Finally, the hydraulic press 4 is activated, and its output end descends vertically under the guidance and constraint of the limiting rods 41 on both sides, driving the installed pressure head 5 to act on the rivets of the retainer 6 in a stable vertical posture, so that the riveting pressure is evenly transmitted, completing the cold extrusion riveting deformation operation.

[0042] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pressing device for producing deep groove ball bearings, comprising a processing table (1), wherein a protective box (2) is fixedly connected to the upper surface of the processing table (1), the interior of the protective box (2) is provided with a workstation for placing a bearing cage (6), and the top of the protective box (2) is provided with a detachable top sealing plate (21), and a pressing assembly for pressing the bearing is provided directly above the cage (6); characterized in that, The pressing assembly includes a hydraulic press (4) located directly above the retainer (6). The output end of the hydraulic press (4) is fixedly connected to a receiving seat, and the outer circular surface of the receiving seat is threaded with a pressure head (5). A rotating mechanism (11) for storing and replacing pressure heads (5) of different sizes is provided between the hydraulic press (4) and the retainer (6). The rotating mechanism (11) includes a first storage cylinder (111) and a second storage cylinder (12) symmetrically arranged on both sides of the hydraulic press (4). A dust cover (112) is fixedly connected to the top of both the first and second storage cylinders (111 and 12). A third servo motor (113) is fixedly installed at the center of the top of the dust cover (112). The output end of the third servo motor (113) is fixedly connected to a second main gear (114) through the dust cover (112). A first main gear (114) is arranged around the inside of both the first and second storage cylinders (111 and 12). The cylinder frame (115) is equipped with a clamping assembly (116) inside. The clamping assembly (116) is used to clamp the spare pressure head (5) and, driven by the second main gear (114), drives the cylinder frame (115) and the clamped pressure head (5) to rotate synchronously. The pressure head (5) of the target size is accurately delivered to the hydraulic press (4) and aligned with the receiving seat. The hydraulic press (4) descends to make the receiving seat and the pressure head (5) threadedly engage to complete the automatic change of shape, so as to replace manual disassembly and repeated correction, and realize the rapid switching of the pressing station of different sized bearings.

2. The pressing device for producing deep groove ball bearings according to claim 1, characterized in that, The clamping assembly (116) includes an annular plate (1161) sleeved on the outer wall of the first cylinder frame (115), and a clamping plate (1162) is fixedly connected to the inner wall of the annular plate (1161). The clamping plate (1162) is engaged in the guide groove of the side wall of the first cylinder frame (115). A second gear disk (1163) that meshes with the second main gear (114) is fixedly connected to the outer edge of the top of the annular plate (1161). Electric telescopic rods (1164) are fixedly installed on both sides of the inner wall of the annular plate (1161). A clamping plate (1165) is fixedly connected to the telescopic end of the electric telescopic rod (1164). A lifting mechanism (8) for adjusting the height of the rotating mechanism (11) is provided on the rear side of the upper surface of the processing table (1), and a displacement assembly for driving the lifting mechanism (8) to move horizontally along the rear side of the processing table (1).

3. The pressing device for producing deep groove ball bearings according to claim 2, characterized in that, The displacement component includes a slot frame (91) fixed to the rear side of the upper surface of the processing table (1). A slide block (9) is slidably connected inside the slot frame (91). The slide block (9) and the slot frame (91) are driven and connected by a second hydraulic rod (92). The lifting mechanism (8) includes a limiting frame (81) fixedly installed on the upper surface of the slide block (9). Slider blocks are fixed on both sides of the bottom of the limiting frame (81). The sliders are slidably engaged in the guide groove of the slot frame (91).

4. The pressing device for producing deep groove ball bearings according to claim 3, characterized in that, The top of the limiting frame (81) is fixedly installed with a first servo motor (83). Limiting slots (82) are opened on both sides of the limiting frame (81) in the vertical direction. The output end of the first servo motor (83) is fixedly connected to a bidirectional threaded rod (84). A partition sleeve (85) is provided in the middle of the bidirectional threaded rod (84) and is fixedly connected to the inner wall of the limiting frame (81). The upper and lower sides of the partition sleeve (85) are respectively provided with a first threaded seat (86) and a second threaded seat (87) that are threadedly connected to the bidirectional threaded rod (84). A drive mechanism (10) is provided on the front side of the limiting frame (81) to adjust the rotational position of the first storage cylinder (111) and the second storage cylinder (12).

5. The pressing device for producing deep groove ball bearings according to claim 4, characterized in that, The drive mechanism (10) includes an L-shaped support arm (101) fixedly connected to both sides of the first threaded seat (86) and the second threaded seat (87). The L-shaped support arm (101) is fixedly connected to an annular receiving frame (105) through the limiting slot (82). The first receiving cylinder (111) is rotatably connected to the inside of the annular receiving frame (105), and a first gear disc (107) is fixedly sleeved on its outer circular surface. The annular receiving frame (105) has an arc-shaped opening on the side near the limiting frame (81). The slot (106) has a support rod (102) fixed on the upper surface of the L-shaped support arm (101). A second servo motor (103) is fixedly connected to one side of the support rod (102). The output end of the second servo motor (103) is fixedly connected to a first main gear (104). The first main gear (104) meshes with a first gear disc (107) to drive the first storage cylinder (111) to rotate circumferentially within the annular receiving frame (105) to switch the pressure head (5) position.

6. The pressing device for producing deep groove ball bearings according to claim 5, characterized in that, The No. 1 storage cylinder (111) and the No. 2 storage cylinder (12) have the same structure and are symmetrically distributed vertically. The pressing assembly also includes a limiting rod (41) that is vertically fixed on both sides of the output end of the hydraulic press (4) to maintain the stable lifting and lowering of the receiving seat. A support platform (3) is provided above the top sealing plate (21). The bottom four corners of the support platform (3) are fixedly connected to the top sealing plate (21) through columns (31). A bracket assembly is also provided on the upper surface of the processing table (1). The bracket assembly includes support frames (72) distributed at the four corners of the processing table (1). Each support frame (72) is embedded with a No. 1 hydraulic rod (71). The telescopic ends of each No. 1 hydraulic rod (71) are fixedly connected to a support plate (7) for supporting the bearing to be processed.

7. A pressing device for producing deep groove ball bearings according to claim 6, characterized in that, The top sealing plate (21) is provided with a cleaning mechanism (13) on its upper surface. The cleaning mechanism (13) includes a first support frame (131) that is fixedly connected to the upper surface of the top sealing plate (21). A vertical rod (132) is fixedly connected to the upper surface of the first support frame (131), and a second support frame (133) is fixedly connected to the vertical rod (132). A semi-circular ring is embedded in the middle of the first support frame (131) and the second support frame (133). The sleeve (134) and the outer circular surfaces of both are threadedly connected to a locking sleeve plate (135). The first sleeve frame (131), the second sleeve frame (133), the semi-circular sleeve (134) and the locking sleeve plate (135) together form a collection cylinder. An adsorption component is provided in the annular groove on the inner side of the first sleeve frame (131). The adsorption component cooperates with the clamping component (116) to adsorb and clean the metal debris attached to its surface before the pressure head (5) is replaced.

8. A pressing device for producing deep groove ball bearings according to claim 7, characterized in that, The adsorption assembly includes a suction pump (137) fixedly installed on the top of the second support frame (133). The air inlet of the suction pump (137) is connected to a suction pipe (138), and the end of the suction pipe (138) is fixedly connected to an adsorption plate (139). The outside of the fixed end of the electric telescopic rod (1164) is fixed with a vertical plate (136) for supporting the suction pipe (138). The air outlet of the suction pump (137) is connected to a delivery pipe (1310). The delivery pipe (1310) extends through the semi-circular ring (134) into the collection cylinder for collecting the sucked debris.

9. A pressing device for producing deep groove ball bearings according to claim 8, characterized in that, The first storage tube (111) has storage slots around its interior, and each storage slot has a receiving tube fixedly connected to the first storage tube (111) at a corresponding position to accommodate the replaced pressure head (5).

10. A pressing device for producing deep groove ball bearings according to claim 9, characterized in that, The clamping end face of the clamping plate (1165) is fixedly connected with a buffer cotton plate to reduce contact wear during the replacement of the pressure head (5); the clamping plate (1165) is a hollow structure, and a pressure sensor is installed on the inner wall of the side near the pressure head (5).

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