Servo punching die and device for bearing retainer

Abstract

The invention discloses a bearing retainer servo punching die and device, and belongs to the field of bearing retainer punching. The bearing retainer servo punching die comprises a servo motor, an output shaft of the servo motor is connected with a positioning leaning disc, and a to-be-punched retainer blank is detachably connected with the positioning leaning disc; the machine base comprises a horizontal sliding base arranged on the machine base in a horizontal moving mode and an inclination angle support arranged on the horizontal sliding base, and the inclination angle adjusting mechanism is arranged between the horizontal sliding base and the inclination angle support and used for adjusting the inclination angle of the inclination angle support; the lifting driving mechanism is mounted on the inclination angle support, and the lifting driving mechanism is connected with a servo motor; a servo motor, a positioning leaning disc and a retainer blank workpiece are used as an integral module for lifting adjustment. During model changing, the stamping female die on the lower portion does not need to be replaced or adjusted, the stamping female die can be rapidly matched only by uniformly adjusting the height of the workpiece module through the lifting mechanism, the operation process is greatly simplified, the production changing time is shortened, and the comprehensive utilization rate of equipment is improved.

Description

Technical Field

[0001] This application belongs to the field of bearing cage punching, and particularly relates to a servo punching die and device for bearing cages. Background Technology

[0002] In the manufacturing process of bearing cages, punching is one of the core processes that determines the product's precision and performance. With the improvement of mechanical automation, traditional manual punching methods have been gradually replaced by mechanized equipment. For example, a bearing cage punching device disclosed in patent document CN216501757U uses a servo motor to drive a positioning plate to clamp the cage, and combines an angle-adjusting cylinder and a rear adjusting bolt to achieve precise adjustment of the punching angle. Then, a horizontal moving mechanism transports the cage between the stamping die and punch to complete the stamping. This structure effectively solves the problems of low efficiency and poor consistency of manual cage rotation, and is particularly suitable for scenarios such as conical cages that require precise control of the punching angle. It can ensure that the punching force direction is consistent with the design reference, thereby improving the overall product quality.

[0003] However, in practical applications, it was found that when adapting to the punching requirements of cages of various specifications, the significant differences in the outer height of cages with different diameters caused interference or even collisions between the bottom of the cage and the fixed stamping die when switching to a large-diameter cage. To avoid this problem, operators had to frequently replace the die pad and readjust the die installation height, while also modifying the stroke parameters of the stamping punch accordingly. This process not only relied on manual experience but was also time-consuming, severely restricting the overall utilization rate of the equipment and production cycle. Furthermore, the existing angle adjustment relied on the cooperation of the angle-adjusting cylinder and bolts. Although precise fine-tuning could be achieved, the adjustment process was cumbersome, required high operator skills, and was difficult to achieve rapid calibration and repeatable positioning, affecting the stability of the process and batch consistency. Therefore, the existing technology needs further improvement and enhancement. Summary of the Invention

[0004] This invention provides a servo punching die and device for bearing cages, which solves the problem that existing bearing cage punching devices require frequent manual adjustment of the die height and punch stroke when switching product specifications. This process is cumbersome, time-consuming, and prone to interference, thus restricting production efficiency and equipment utilization.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A servo punching die for a bearing cage, comprising: The rotary positioning mechanism includes a servo motor, the output shaft of which is connected to a positioning plate, and the blank to be punched is detachably connected to the positioning plate. The machine base includes a horizontal slide that can be horizontally moved on the machine base, an angle support disposed on the horizontal slide, and an angle adjustment mechanism disposed between the horizontal slide and the angle support for adjusting the tilt angle of the angle support; a lifting drive mechanism is mounted on the angle support and is connected to a servo motor; when different specifications of cage blanks are installed on the positioning plate, the servo motor can adjust the height through the lifting drive mechanism and adjust the angle through the angle adjustment mechanism so that the cage can move horizontally to a preset position that matches the stamping die.

[0006] In a preferred embodiment, the lifting drive mechanism includes a first worm gear lifting mechanism and a lifting plate. A servo motor is mounted on the lifting plate. An inclined support is provided with a mounting platform perpendicular to it. The lifting plate is provided with a connecting platform parallel to the mounting platform. The first worm gear lifting mechanism is mounted on the mounting platform, and its first lead screw passes vertically through the mounting platform and connects to the connecting platform. The axial movement of the first lead screw drives the lifting plate and the servo motor on it to lift.

[0007] In a preferred embodiment, the tilt support is provided with wedge-shaped sliders on both sides, and the lifting plate is provided with wedge-shaped surfaces on both sides that are adapted to the wedge-shaped sliders. There is a gap between the wedge-shaped sliders and the wedge-shaped surfaces. The wedge-shaped sliders restrict the lifting plate from sliding vertically. The wedge-shaped sliders are detachably connected to the fixed base by bolts so that the distance between the wedge-shaped sliders and the wedge-shaped surfaces of the lifting plate can be adjusted to prevent the servo motor from swaying in the left and right directions.

[0008] In a preferred embodiment, a screw is also provided between the mounting platform and the connecting platform. One end of the screw is connected to the connecting platform, and the other end passes through the mounting platform. Bolts are provided on the screw and are located on the upper and lower surfaces of the mounting platform. After the height adjustment is completed, the bolts are tightened to fit tightly against the upper and lower surfaces of the mounting platform to secure and lock the position, thereby preventing the servo motor from moving during punching.

[0009] In a preferred implementation, the grating reading head is connected to one side of the connecting platform via a connecting frame, and the grating ruler body is set on the tilt support. The grating reading head detects the position information of the servo motor and transmits it to the controller to record adjustment data, which facilitates quick model changeover.

[0010] In a preferred embodiment, the tilt adjustment mechanism includes a second worm gear lifting mechanism. A fixed block and a movable block are provided on the horizontal slide. The second worm gear lifting mechanism is located on the fixed block, and its second lead screw passes vertically through the fixed block and connects to the movable block. One end of the movable block is hinged to the connecting rod, and the other end of the connecting rod is hinged to the back of the tilt support. The bottom of the tilt support is rotatably connected to the horizontal slide through an ear plate hinge shaft structure. The second lead screw moves axially, causing the movable block to move on the movable seat, thereby changing the tilt angle of the connecting rod to adjust the angle of the tilt support.

[0011] In a preferred implementation, an angle measurement sensor is provided on the back of the tilt support to detect the tilt angle of the tilt support and transmit it to the controller to record and adjust the data. This allows for quick and direct angle adjustment for different specifications of cages.

[0012] A servo punching device for bearing cages utilizes a servo punching die for bearing cages, including a punching die assembly and a punching punch assembly. A horizontal slide moves the cage blank to punch between the punching die assembly and the punching punch assembly. The punching die assembly includes a punching die unit with punching holes and a die frame. Die units with different punching sizes are embedded in the die frame. The die frame is detachably mounted on a lower die base. The lower die base is provided with a T-slot, and the die frame is provided with mounting holes. Bolts pass through the mounting holes to connect to the T-blocks in the T-slots to achieve connection.

[0013] In a preferred embodiment, a positioning cone is provided on the lower mold base, and a tapered groove adapted to the positioning cone is provided on the side of the die frame base. The tapered groove and the positioning cone are connected to achieve installation and positioning.

[0014] In a preferred embodiment, the punching punch includes an arc-shaped punch, which includes an outer pressure part and a middle punching part. After the pressure part abuts against the inner wall of the retainer, the punching part moves relative to the pressure part to achieve punching.

[0015] The above structure has the following beneficial effects: 1. The bearing cage servo punching die of this application integrates the servo motor, positioning plate, and cage blank workpiece as a single module for lifting and adjustment. When switching specifications, there is no need to replace or adjust the lower stamping die; simply adjusting the height of the workpiece module through this lifting mechanism allows for quick matching of the stamping die, greatly simplifying the operation process, shortening changeover time, and improving the overall utilization rate of the equipment.

[0016] 2. The bearing cage servo punching die of this application adopts a first worm gear lifting mechanism as the core lifting drive component. This mechanism inherently possesses high transmission accuracy and smooth movement, enabling precise control of the punching height. The inherent self-locking function of the worm gear mechanism effectively prevents the lifting plate from sliding down under stamping vibration conditions, ensuring absolute stability of the positioning height during processing and fundamentally guaranteeing the uniformity of punching depth and product accuracy.

[0017] 3. The bearing cage servo punching die of this application features a simpler wedge-fit structure, consisting only of a wedge-shaped slider on the tilt support and a wedge-shaped surface on the lifting plate, eliminating the need for complex guide rails and slider assemblies. This simple structure not only reduces processing difficulty and cost but also minimizes potential failure points caused by structural complexity, thereby improving equipment reliability.

[0018] 4. The bearing cage servo punching die of this application has a grating ruler body set on the tilt support. The grating reading head detects the position information of the servo motor and transmits it to the controller to record and adjust the data, which facilitates quick model changeover.

[0019] 5. The bearing cage servo punching die of this application has a tilt support bottom rotatably connected to a horizontal slide via an ear plate hinge shaft structure. The second lead screw moves axially, driving the moving block to move on the moving seat, thereby changing the tilt angle of the connecting rod to adjust the tilt support angle. Due to the self-locking and high transmission ratio characteristics of the worm gear drive, it can achieve minute displacement adjustments, making the tilt angle change of the connecting rod more precise, thus accurately controlling the angle of the fixed seat. The tilt support is equipped with a tilt angle measuring sensor on the back to detect the tilt angle of the tilt support and transmit it to the controller to record the adjustment data. For different specifications of cages, it is convenient to quickly and directly adjust the angle.

[0020] 6. The bearing cage servo punching device of this application designs the vulnerable and product-replaceable die units as standard modules, which are pre-precisely embedded in the die frame to form independent components. During replacement, operators no longer need to painstakingly disassemble and calibrate individual dies; instead, the entire pre-installed and calibrated die assembly is replaced as a whole. This reduces die changeover time from tens of minutes to a few minutes or even less, significantly reducing equipment downtime and greatly improving production efficiency and equipment utilization. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and, together with their description, serve to explain this application and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic side view of one embodiment of the bearing cage servo punching die and device of this application is shown. Figure 2 A schematic top view of one embodiment of the bearing cage servo punching die and device of this application is shown. Figure 3 This application is illustrated. Figure 2 A schematic cross-sectional view of one embodiment of AA; Figure 4 A schematic three-dimensional structural diagram of one embodiment of the bearing cage servo punching die and device of this application is shown; Figure 5 An enlarged structural schematic diagram of one embodiment of the wedge-shaped slider and the wedge-shaped surface mating of this application is shown; Figure 6 A schematic three-dimensional structural diagram of one embodiment of the bearing cage servo punching device of this application is shown. Figure 7 A schematic three-dimensional structural diagram of one embodiment of the positioning cone block of this application is shown; Label Explanation: 1. Rotary positioning mechanism; 10. Servo motor; 11. Positioning plate; 2. Base; 20. Horizontal slide; 21. Drive component; 3. Tilt support; 30. Mounting platform; 300. Screw; 301. Bolt; 31. Wedge slider; 32. Tilt measurement sensor; 4. Tilt adjustment mechanism; 40. Second worm gear lifting mechanism; 41. Second lead screw; 42. Fixed block; 43. Moving block; 44. 50. Connecting rod; 51. First worm gear lifting mechanism; 52. First lead screw; 53. Lifting plate; 54. Connecting platform; 55. Wedge surface; 66. Grating reading head; 67. Grating ruler body; 78. Die unit; 79. Die frame seat; 70. Lower die seat; 71. T-slot; 72. T-block; 722. Positioning cone block; 80. Pressing part; 81. Punching part; 82. Spring column; 90. Guide column. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit and scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] The present invention will now be described with reference to the accompanying drawings.

[0024] The specific solution adopted is as follows: like Figure 1-7 As shown, the present invention provides a bearing cage servo punching die, comprising: The rotary positioning mechanism 1 includes a servo motor 10, the output shaft of which is connected to a positioning plate 11, and the blank to be punched is detachably connected to the positioning plate 11. The base 2 includes a horizontal slide 20 that can be horizontally moved on the base, a drive unit 21 connected to the horizontal slide, an angle support 3 disposed on the horizontal slide, and an angle adjustment mechanism 4 disposed between the horizontal slide and the angle support for adjusting the tilt angle of the angle support; a lifting drive mechanism is installed on the angle support and is connected to a servo motor 10; when different specifications of cage blanks are installed on the positioning plate, the servo motor can adjust the height through the lifting drive mechanism and adjust the angle through the angle adjustment mechanism so that the cage can move horizontally to a preset position that matches the stamping die.

[0025] By employing the bearing cage servo punching die of this application, the adjustment subject changes from a fixed die to a movable workpiece. The spatial position (height and angle) of the positioning plate holding the workpiece is directly adjusted via a lifting drive mechanism and a tilt adjustment mechanism. For different specifications of cages, the installation positions of the stamping die and punch can remain fixed. Only standardized dies and punches need to be replaced, and the system automatically drives the workpiece to "match" the fixed die position. This eliminates the possibility of interference between the bottom of the workpiece and the die in principle. The die is standardized and serialized, eliminating the need to prepare a large number of adjustment shims of different thicknesses; only standard dies / punches need to be stocked. Operators do not need advanced skills to judge and adjust; they only need to know how to press buttons to call up the program, reducing labor and training costs. Non-productive downtime of the equipment is greatly reduced, thereby directly improving the overall utilization rate of the equipment and the production cycle.

[0026] In a preferred embodiment of this application, the lifting drive mechanism includes a first worm gear lifting mechanism 50 and a lifting plate 52. A servo motor is mounted on the lifting plate, and an inclined support is provided with a mounting platform 30 perpendicular to it. The lifting plate 52 is provided with a connecting platform 520 parallel to the mounting platform 30. The first worm gear lifting mechanism is mounted on the mounting platform, and its first lead screw 51 passes vertically through the mounting platform and connects to the connecting platform. The axial movement of the first lead screw drives the lifting plate and the servo motor on it to lift.

[0027] The first worm gear lifting mechanism is used as the core lifting drive component. It features high transmission accuracy and smooth movement, enabling precise control of the punching height. The inherent self-locking function of the worm gear mechanism effectively prevents the lifting plate from sliding down under stamping vibration conditions, ensuring absolute stability of the positioning height during processing and fundamentally guaranteeing the uniformity of punching depth and product accuracy.

[0028] The parallel design of the mounting platform and connecting platform, combined with the vertical transmission of the first lead screw, effectively resists the enormous impact force generated during stamping, minimizing deformation and vibration, thereby extending mold life and ensuring punching quality. The drive source for the first lead screw can be a handwheel or a motor, which can be flexibly configured according to automation needs and cost budget. In the servo motor drive mode, "one-click height adjustment" is achieved; using the handwheel can also achieve precise and labor-saving adjustment, taking into account economy.

[0029] Worm gear lifting mechanisms are common mechanical transmission components with relatively mature manufacturing processes and ample market supply, resulting in relatively low costs. Compared to solutions employing complex hydraulic or electric lifting systems, using a worm gear lifting mechanism can effectively reduce equipment manufacturing costs and improve product cost-effectiveness while still meeting height adjustment requirements.

[0030] As a preferred embodiment of this application, see [link to application]. Figure 5 The inclined support has wedge-shaped sliders 31 on both sides, and the lifting plate has wedge-shaped surfaces 521 on both sides that are adapted to the wedge-shaped sliders. There is a gap between the wedge-shaped sliders and the wedge-shaped surfaces. The wedge-shaped sliders restrict the lifting plate from sliding vertically. The wedge-shaped sliders are detachably connected to the fixed base by bolts so that the distance between the wedge-shaped sliders and the wedge-shaped surfaces of the lifting plate can be adjusted to prevent the servo motor from wobbling in the left and right directions.

[0031] During machining and assembly, various factors can lead to manufacturing errors between the tilting support and the lifting plate, resulting in insufficient fit and affecting the lifting accuracy and stability of the lifting plate. The wedge-shaped fit method described in this application effectively compensates for these manufacturing errors by adjusting the distance between the wedge slider and the wedge-shaped surface of the lifting plate. For example, if slight wobbling or jamming is observed during lifting, the operator can loosen the bolts and fine-tune the position of the wedge slider to change the distance, making the contact between the wedge surfaces tighter and smoother. This ensures the lifting plate can slide accurately vertically, improving the machining accuracy of the equipment. The stability and accuracy requirements for the lifting plate may vary under different production conditions. For instance, when machining cages with high precision requirements, the distance between the wedge slider and the wedge surface needs to be smaller to enhance the constraint on the lifting plate and reduce wobbling; while when machining cages with relatively lower precision requirements and requiring rapid lifting, the distance can be appropriately increased to reduce friction and increase the lifting speed. This adjustable spacing design allows the equipment to flexibly adapt to various working conditions, improving its versatility and adaptability.

[0032] Linear guides and their matching sliders typically have complex structures, requiring precise machining and installation to ensure smooth and accurate sliding of the slider on the guide rail. The wedge-fit structure of this application is much simpler, consisting only of a wedge-shaped slider on an inclined support and a wedge-shaped surface on the lifting plate, eliminating the need for complex guide rail and slider assemblies. This simplified structure not only reduces machining difficulty and cost but also minimizes potential failure points caused by structural complexity, thus improving equipment reliability. Linear guides and their matching sliders require a certain amount of lateral and longitudinal space during installation, which can be restrictive, especially in space-constrained equipment. The wedge-fit method of this application, using an oblique fit of the wedge-shaped surface, effectively utilizes space while guiding the vertical sliding of the lifting plate, reducing lateral and longitudinal space occupation.

[0033] Linear guides and their matching sliders are typically expensive, especially high-precision, high-performance guides and sliders, whose cost can account for a significant portion of the total equipment cost. In contrast, the wedge-fit method described in this application utilizes relatively low-cost components such as wedge sliders and bolts, and its manufacturing process is simple, effectively reducing equipment manufacturing costs. This not only enhances the market competitiveness of products for enterprises but also increases their economic benefits.

[0034] When linear guides and sliders malfunction or wear, complex disassembly and replacement work is required, sometimes even necessitating partial disassembly of the entire device. This is not only time-consuming and labor-intensive but may also affect the normal operation of the equipment. However, the wedge-shaped fit method of this application greatly facilitates maintenance. Simply loosen the bolts and remove the wedge-shaped slider for inspection, repair, or replacement, eliminating the need for large-scale disassembly of the entire device. This significantly shortens maintenance time and improves the maintainability of the equipment.

[0035] See Figure 1 A screw 300 is also installed between the mounting platform 30 and the connecting platform 520. One end of the screw is connected to the connecting platform, and the other end passes through the mounting platform. A bolt 301 is installed on the screw. The bolt is installed on the upper and lower surfaces of the mounting platform. After the height is adjusted, the bolt is tightened to fit tightly against the upper and lower surfaces of the mounting platform to lock the position and prevent the servo motor from moving during punching.

[0036] Although the first worm gear lifting mechanism 50 has a self-locking function, the servo motor and positioning plate are subjected to significant impact forces during the punching process. At this time, the fastening device consisting of the screw and bolt provides a double locking function. After the height adjustment is completed, the bolt is tightened to fit tightly against the upper and lower surfaces of the mounting platform, fixing the screw and thus restricting the movement of the connecting platform relative to the mounting platform. This effectively prevents the servo motor from shifting due to punching force, ensuring the stability of the workpiece height during punching and improving punching accuracy. The fastening effect of the screw and bolt increases the connection rigidity between the mounting platform and the connecting platform. During punching, the entire structure can better withstand impact loads, reducing errors caused by structural deformation, making the punching position more accurate, and improving product quality consistency.

[0037] As a preferred embodiment of this application, see [link to application]. Figure 5 The grating reading head 60 is connected to one side of the connecting platform via a connecting bracket. The grating ruler body 61 is set on the tilt support. The grating reading head detects the position information of the servo motor and transmits it to the controller to record and adjust the data, which facilitates quick model changeover.

[0038] Specifically, during changeover, the servo motor can be quickly moved to the initial position of the corresponding cage model by reading the scale on the grating ruler. This initial position is pre-set, providing an accurate starting point for subsequent precise adjustments and significantly reducing positioning time during changeover. After the initial position is determined, based on the required processing height of the new cage model, the operator can quickly and accurately adjust the servo motor from the initial position to the target adjustment position using the real-time position data fed back by the grating reading head. Because the grating ruler has high-precision measurement capabilities, accurate to the micrometer level, it ensures that each adjustment achieves the required height accuracy, enabling fast and precise changeover operations and improving production efficiency.

[0039] During processing, the grating reading head continuously monitors the position information of the servo motor and transmits it to the controller. Operators can observe the readings in real time to ensure the servo motor remains in the correct processing position. If the readings change, it indicates a positional deviation in the equipment, possibly due to mechanical wear, vibration, or other factors. By promptly detecting such changes, operators can take immediate corrective measures to avoid processing errors caused by positional deviations, thus ensuring the accuracy and quality of the cage punching.

[0040] The controller records the initial and adjusted position data for each model change, as well as positional changes during processing. This data forms a complete production record, providing crucial information for production management and quality control. Analysis of this data allows for understanding the processing patterns and characteristics of different cage models, optimizing production processes and parameter settings, and further improving production efficiency and product quality.

[0041] See Figures 1-4The tilt adjustment mechanism includes a second worm gear lifting mechanism 40. A fixed block and a movable block are mounted on a horizontal slide. The second worm gear lifting mechanism is located on the fixed block, and its second lead screw 41 passes vertically through the fixed block 42 and connects to the movable block 43. One end of the movable block is hinged to a connecting rod 44, and the other end of the connecting rod is hinged to the back of the tilt support. The bottom of the tilt support is rotatably connected to the horizontal slide via a lug hinge shaft structure. The axial movement of the second lead screw drives the movable block to move on the movable seat, changing the tilt angle of the connecting rod to adjust the angle of the tilt support. Because the worm gear transmission has self-locking and high transmission ratio characteristics, it can achieve minute displacement adjustments, making the tilt angle change of the connecting rod more precise, thereby accurately controlling the angle of the fixed seat. In the prior art, the adjustment accuracy of the cylinder is relatively low; its stroke and speed control usually depend on the stability of the air pressure and the accuracy of the control valve, making it difficult to achieve minute angle adjustments. While fine-tuning with bolts can improve accuracy to some extent, the operation process is cumbersome, requiring multiple attempts and adjustments, and the adjustment range is limited, making it difficult to meet the needs of high-precision adjustment. After the angle adjustment is completed, the screw and bolt can be used for double locking or other fixing methods to prevent movement during punching.

[0042] Furthermore, an angle measurement sensor 32 is provided on the back of the tilt support to detect the tilt angle of the tilt support and transmit it to the controller to record adjustment data, so as to facilitate quick and direct angle adjustment for different specifications of cages.

[0043] Traditional adjustment methods may require external measuring tools (such as angle gauges and levels) to manually measure and read the angle of the tilt support, a cumbersome and time-consuming process. In contrast, tilt measurement sensors can detect the angle of the tilt support in real time and quickly, transmitting the data directly to the controller. This eliminates the need for manual measurement, significantly reducing the time required to acquire angle information. The controller can directly control the worm gear lifting mechanism to adjust the tilt support to the target angle based on preset angle parameters corresponding to different cage specifications. The entire adjustment process eliminates the need for multiple attempts and repeated calibrations, achieving rapid and direct angle adjustment and significantly improving production efficiency.

[0044] See Figure 6 and 7 A bearing cage servo punching device is disclosed, which uses a bearing cage servo punching die, including a punching die assembly and a punching punch assembly. A horizontal slide moves the cage blank to punch between the punching die assembly and the punching punch assembly. The punching die assembly includes a punching die unit 70 and a die frame 71. Die units 70 with different punching sizes are embedded in the die frame 71. The die frame 71 is detachably mounted on a lower die base 72. The lower die base is provided with a T-slot 720. The die frame 71 is provided with a mounting hole. Bolts pass through the mounting hole to connect to the T-block 721 of the T-slot to achieve connection.

[0045] The easily damaged and product-replaceable die units are designed as standard modules, pre-embedded precisely into the die frame to form independent components. During replacement, operators no longer need to painstakingly disassemble and calibrate individual dies; instead, the entire pre-installed and calibrated die assembly is replaced as a whole. This reduces die changeover time from tens of minutes to just a few minutes or even less, significantly reducing equipment downtime and greatly improving production efficiency and equipment utilization.

[0046] The die frame base and the lower die base are connected by a T-slot and bolts, which makes installation simple and convenient. The lower die base is equipped with a positioning cone block, and the side of the die frame base is equipped with a tapered groove that matches the positioning cone block 722. The tapered groove and the positioning cone block are connected to achieve installation positioning, ensuring that the die assembly can accurately return to the unique, preset geometric center position after each replacement.

[0047] See Figure 7 The punching die includes an arc-shaped punch, which comprises an outer blank holder 80 and a central blanking portion 81. The blank holder is connected to the upper die holder above the arc-shaped punch via a spring post 82. After the blank holder abuts against the inner wall of the retainer, the blanking portion moves relative to the blank holder to achieve punching. During the punch's operation, the outer blank holder first contacts and presses against the inner wall of the retainer, forming a stable, high-pressure zone around the material to be punched. When the central blanking portion subsequently performs blanking, this pressure zone greatly restricts the flow and stretching of material into the punching area. This prevents collapse, warping, or macroscopic deformation at the hole edge, ensures a regular punched hole shape, maintains the overall roundness of the retainer, and significantly improves the dimensional accuracy and appearance quality of the product.

[0048] In addition, four square guide pillars 90 are used between the punching die assembly and the punching die assembly to increase the overall rigidity of the mold.

[0049] For any parts not mentioned in this invention, existing technologies can be used or referenced.

[0050] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cage servo piercing die for a bearing cage, characterized in that, The utility model relates to a kind of punch press, including: Rotary positioning mechanism, including servo motor, the output shaft of servo motor is connected to positioning backplate, and the blank of the retainer to be punched can be detachably connected to positioning backplate; Machine base, including horizontally movable setting on the horizontal slide of machine base, the inclination support of setting on the horizontal slide, inclination adjusting mechanism is set between the horizontal slide and inclination support, for adjusting the inclination angle of the inclination support;Lifting drive mechanism is installed on the inclination support, and the lifting drive mechanism is connected with servo motor;When positioning backplate is installed with different specifications of retainer blank workpiece, the height of the servo motor can be adjusted by the lifting drive mechanism, and the angle is adjusted by the inclination adjusting mechanism, so that the retainer can be horizontally moved to the preset position matched with the stamping concave die.

2. The bearing retainer servo piercing die of claim 1, wherein, The lifting drive mechanism includes a first worm gear lifting mechanism and a lifting plate, the servo motor is arranged on the lifting plate, the inclination support is provided with a mounting table perpendicular thereto, the lifting plate is provided with a connecting table parallel to the mounting table, the first worm gear lifting mechanism is arranged on the mounting table, and a first screw rod thereof penetrates through the mounting table and the connecting table perpendicularly to be connected, axial movement of the first screw rod drives the lifting plate and the servo motor thereon to lift.

3. The bearing retainer servo piercing die of claim 2, wherein, Both sides of the inclination support are provided with wedge-shaped slides, both sides of the lifting plate are provided with wedge-shaped surfaces matched with the wedge-shaped slides, the wedge-shaped slides and the wedge-shaped surfaces have gaps therebetween, the wedge-shaped slides limit the lifting plate to slide vertically, and the wedge-shaped slides are detachably connected to the fixing seat by bolts to adjust the distance between the wedge-shaped slides and the wedge-shaped surfaces of the lifting plate and prevent the servo motor from shaking in the left-right direction.

4. The bearing retainer servo piercing die of claim 2, wherein, A screw rod is further arranged between the mounting table and the connecting table, one end of the screw rod is connected to the connecting table, the other end penetrates through the mounting table, the screw rod is provided with bolts, the bolts are arranged on the upper and lower surfaces of the mounting table, after height adjustment is completed, the bolts are screwed to tightly adhere to the upper and lower surfaces of the mounting table to fasten and lock the position, so as to prevent the position of the servo motor from moving during blanking.

5. The bearing retainer servo piercing die of claim 2 wherein, One side of the connecting table is connected to a grating reading head through a connecting frame, a grating ruler body is arranged on the inclination support, the grating reading head detects position information of the servo motor and transmits the information to a controller to record adjustment data, so as to facilitate quick changeover.

6. The bearing retainer servo piercing die of claim 1 wherein, The inclination adjusting mechanism includes a second worm gear lifting mechanism, the horizontal slide is provided with a fixed block and a moving block perpendicular to the horizontal slide, the second worm gear lifting mechanism is arranged on the fixed block and a second screw rod thereof penetrates through the fixed block to connect the moving block, one end of the moving block is hingedly connected to a connecting rod, the other end of the connecting rod is hingedly connected to the back of the inclination support, the inclination support is rotatably connected to the horizontal slide through an ear plate hinged shaft structure at the bottom, axial movement of the second screw rod drives the moving block to move on the moving seat, so as to change the inclination angle of the connecting rod to adjust the angle of the inclination support.

7. The bearing retainer servo piercing die of claim 1 wherein, The back of the inclination support is provided with an inclination measuring sensor to detect the inclination angle of the inclination support and transmit the information to a controller to record adjustment data, so as to facilitate quick and direct adjustment of the angle for different specifications of retainers.

8. A bearing retainer servo piercing apparatus using the bearing retainer servo piercing die according to any one of claims 1 to 7, characterized by, The punch die assembly and the punch punch assembly, the horizontal slide drives the retainer blank between the punch die assembly and the punch punch assembly, the punch die assembly includes a punch die unit with a punch and a die frame, the die unit with different punch sizes is embedded in the die frame, the die frame is detachably installed on the lower die seat, the lower die seat is provided with a T-shaped groove, the die frame is provided with a mounting hole, and the T-shaped block of the T-shaped groove is connected through the mounting hole to realize the connection.

9. The bearing retainer servo piercing device of claim 8, wherein, The lower die seat is provided with a positioning taper block, the side surface of the die frame is provided with a tapered groove matched with the positioning taper block, and the tapered groove and the positioning taper block are matched and connected to realize positioning installation.

10. The bearing retainer servo piercing device of claim 8, wherein, The punch punch includes an arc-shaped punch head, the arc-shaped punch head includes a pressing part on the outer side and a punching part in the middle, the pressing part abuts against the inner wall of the retainer, and the punching part moves relative to the pressing part to realize punching.

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