Centering and indenting device and method for producing bearing end cover

Abstract

The invention discloses a centering and indenting device and method for producing a bearing end cover, the centering and indenting device for producing the bearing end cover comprises a machine tool, the upper surface of the machine tool is horizontally arranged, and a conveying device is arranged on the machine tool; a spacing pressing cutter, a pre-punching column, a first pressing column, a second pressing column, a fillet pressing column, a repairing pressing column, a flattening pressing column, a wrinkle flattening pressing column, a punching pressing column and a positioning device are sequentially arranged on the machine tool from the feeding end to the discharging end.

Description

Technical Field

[0001] This invention belongs to the technical field of end cap processing equipment, and more specifically, relates to a device and method for producing centering and pressing concave bearing end caps. Background Technology

[0002] As a key sealing and support element for mechanical components such as bearings and shafts, the machining accuracy of bearing end caps directly affects the operational stability and service life of mechanical equipment. With the increasing demand for high-precision and high-stability bearing end caps in industrial manufacturing, traditional machining methods are gradually showing their inadequacy in terms of positioning control, deformation management, and machining logic continuity.

[0003] In existing technologies, bearing end cap production typically employs processes such as stamping and stretching, using a conveyor to advance the sheet metal through multiple processing steps. However, traditional processing methods suffer from the following technical bottlenecks: positioning references rely on manual measurement or single sensor identification, making them susceptible to feed errors due to sheet metal deformation; deformation control lacks continuity, with thickness adjustment and stress release steps separated, easily leading to internal stress accumulation or uneven thickness; the logical correlation between processing steps is weak, making it difficult for deformation deviations in previous steps to be effectively corrected by subsequent steps, resulting in insufficient dimensional accuracy of the finished product; and the center hole punching and cutting steps are easily affected by conveyor errors, making it difficult to guarantee positioning accuracy.

[0004] The aforementioned technical problems result in defects such as low positioning accuracy, inconsistent deformation control, and large dimensional deviations in the bearing end cover processing, making it difficult to meet the stringent requirements of high-precision mechanical components for bearing end covers. Therefore, there is an urgent need for a bearing end cover production device and method that can achieve precise control throughout the entire process, consistent deformation management, and coherent processing logic, in order to improve the processing accuracy and finished product quality of bearing end covers. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a device and method for producing a centering indentation for bearing end caps.

[0006] To achieve the aforementioned objective, the technical solution adopted by this invention includes a machine tool with a horizontally arranged upper surface. The machine tool is equipped with a conveying device, and along the feed end to the discharge end of the machine tool, there are sequentially arranged a spacing pressure knife, a pre-punching pressure column, a first pressure column, a second pressure column, a rounded corner pressure column, a repair pressure column, a flattening pressure column, a wrinkle-flattening pressure column, a punching pressure column, and a positioning device.

[0007] Optionally, the conveying device includes a conveyor table, with conveyor frames fixed to both ends of the conveyor table, and conveyor rollers with horizontally arranged axes rotatably connected to the conveyor frames.

[0008] Optionally, the positioning device includes a positioning pin and a cutting pressure knife arranged coaxially.

[0009] Optionally, the machine tool is equipped with matching lower dies for the positions of the spacing pressure knife, pre-punching pressure column, first pressure column, second pressure column, rounded corner pressure column, repair pressure column, flattening pressure column, wrinkle flattening pressure column, and punching pressure column.

[0010] Optionally, a second camera is provided between the positioning device on the machine tool and the punching pressure column, and a first camera is provided on the side of the spacing pressure knife corresponding to the pre-punching pressure column.

[0011] Optionally, the following steps are included: S1: Control feed; S101: Pre-spacing holes: According to the required workpiece size, multiple spacing holes larger than the workpiece size are arrayed according to the workpiece diameter. The length of the plate between two adjacent spacing holes is at least twice the workpiece size; S2: Workpiece processing: This step specifically includes: S201: Shim pre-punching: Punch a pre-punching hole with a diameter smaller than the required center hole size of the workpiece at the middle position between two adjacent spacing holes; S202: Shim pre-stretching: According to the required workpiece thickness, pre-punch the plate to a thickness of 130%-140%; S203: Shim deep pressing: Pre-punch the plate to a thickness of 95%-100% of the workpiece thickness.

[0012] Optionally, step S2 further includes: S204: rounding corners; S205: deformation repair, adjusting the overall thickness of the workpiece by utilizing the interaction between the repair pressure column and the lower die; S206: ball track flattening, flattening the ball track by using the flattening pressure column; S207: wrinkle smoothing, pushing the material deformation on the upper surface of the workpiece towards the position between two adjacent workpieces; S208: formal punching, performing secondary punching on the pre-punched hole to the standard size of the workpiece; S209: positioning pin insertion, through the loop monitoring of camera two and camera one, inserting the positioning pin into the center hole punched by the pre-punching pressure column and causing a small displacement of the plate, so that the center hole and the positioning pin are set on the same axis; S210: cutting, completing the final cutting of the workpiece by using a cutting pressure knife.

[0013] Optionally, step S3 includes S301: Camera 1 identifies the spacing hole; S302: Identify the distance the spacing hole moves; S304: Camera 2 identifies the spacing hole; S305: Data is transmitted to the main controller to identify the feed amount.

[0014] Compared with the prior art, the advantages of the present invention include: (1) The present invention provides a device and method for centering and pressing concave bearing end caps, which achieves precise positioning and feed control: by constructing a positioning reference that can be identified by the machine tool camera through a pre-spacing hole array, and combining the loop monitoring system of camera one and camera two, the plate material is pushed forward uniformly in a cycle and the feed deviation is corrected in real time; this design ensures the consistency of positioning accuracy of each processing step from feeding to discharging, and avoids the feed deviation caused by plate deformation or manual measurement error in the traditional method, providing a stable positioning reference guarantee for subsequent deformation control, thickness adjustment and cutting processes; (2) The present invention provides a device and method for producing bearing end cap centering concave, with deformation collaborative management and thickness optimization effects: the pre-punching of the gasket is adopted to release the stress of the plate first, and the step-by-step thickness adjustment strategy of gasket pre-stretching (130%-140% thickness) and deep pressing (95%-100% thickness) is combined to form a continuous deformation control process; through the synergistic effect of the first pressure column, the second pressure column and the repair pressure column and the lower mold, the influence of the initial plate thickness difference on the processing is effectively reduced, the accumulation of internal stress is reduced, and the uniform deformation characteristics of the forming steps such as rounding corners and ball track pressing are ensured. Finally, the overall thickness of the workpiece is accurately adjusted through repair deformation to meet the design size requirements; (3) The present invention provides a device and method for centering and pressing concave bearing end caps, which improves the continuity of processing logic and the precision of finished products: each processing step is executed in sequence from feeding to discharging, forming a complete closed-loop process of positioning reference construction - deformation control - forming processing - flatness treatment - precision punching - final cutting; the preceding steps (such as pre-spacing holes, pre-punching) provide positioning references and deformation allowances for the subsequent steps (such as rounding corners, ball track flattening), and the subsequent steps (such as wrinkle flattening, positioning pin insertion) correct the deviations of the preceding steps through material deformation and coaxial positioning technology. Finally, the cutting and pressing knife achieves dual protection of workpiece size accuracy and edge quality, and improves the overall processing accuracy, flatness and operation stability of bearing end caps, meeting the stringent requirements of high-precision mechanical parts for bearing end caps. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional schematic diagram of a bearing end cap centering and pressing device and method according to the present invention; Figure 2 This is a flowchart of a method for producing a centering indentation in a bearing end cap according to the present invention; Figure label: 1. Machine tool; 2. Conveying device; 21. Conveying table; 22. Conveying roller; 31. Camera 1; 32. Camera 2; 41. Spacing pressure knife; 42. Pre-punching pressure column; 43. First pressure column; 44. Second pressure column; 45. Rounded corner pressure column; 46. Repair pressure column; 47. Flattening pressure column; 48. Wrinkle-flattening pressure column; 49. Punching pressure column; 5. Positioning device; 51. Positioning pin; 52. Cutting pressure knife; In the accompanying drawings, the same parts are labeled with the same reference numerals; the drawings are not drawn to scale. Detailed Implementation

[0017] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples in the embodiments of this application.

[0018] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made on the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0020] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0021] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0022] The present invention aims to introduce and explain the structural composition and the fitting relationship between the components of the device and method for producing bearing end cap centering and pressing. Unless otherwise specified, the dimensions, materials and manufacturing processes of each component in the device and method for producing bearing end cap centering and pressing can be selected according to specific circumstances, and no special limitations or explanations are given here.

[0023] Furthermore, to provide the public with a better understanding of the present invention, certain specific details are described in detail in the following description of the invention. However, those skilled in the art will fully understand the invention even without these detailed descriptions.

[0024] Please see Figure 1 and Figure 2 A device and method for producing centering and pressing concave bearing end caps includes a machine tool 1 with a horizontally arranged upper surface. A conveying device 2 is provided on the machine tool 1. The conveying device 2 includes a conveying table 21 with conveying frames fixedly connected to both ends of the conveying table 21. A conveying roller 22 is rotatably connected to the conveying frame. The axis of the conveying roller 22 is horizontally arranged. The conveying roller 22 can abut against the plate to push the plate along the length direction of the conveying table 21 to realize the processing operation.

[0025] Please see Figure 1 and Figure 2One end of the machine tool 1 is the feeding end, and the other end of the machine tool 1 is the discharging end. The conveying direction of the conveying roller 22 is from the feeding end to the discharging end. The machine tool 1 is provided with the following components in sequence from the feeding end to the discharging end: a spacing pressure knife 41, a pre-punching pressure column 42, a first pressure column 43, a second pressure column 44, a rounded corner pressure column 45, a repair pressure column 46, a flattening pressure column 47, a wrinkle-flattening pressure column 48, a punching pressure column 49, and a positioning device 5. The positioning device 5 includes a positioning pin 51 and a cutting pressure knife 52. The cutting pressure knife 52 and the positioning pin 51 are arranged on the same axis.

[0026] Please see Figure 1 and Figure 2 Machine tool 1 has matching lower dies at the positions of the spacing pressure knife 41, pre-punching column 42, first pressure column 43, second pressure column 44, rounded corner pressure column 45, repair pressure column 46, flattening pressure column 47, wrinkle-flattening pressure column 48, and punching pressure column 49. The workpiece is processed by the interaction between the spacing pressure knife 41, pre-punching column 42, first pressure column 43, second pressure column 44, rounded corner pressure column 45, repair pressure column 46, flattening pressure column 47, wrinkle-flattening pressure column 48, punching pressure column 49 and the corresponding lower dies.

[0027] Please see Figure 1 and Figure 2 A second camera 32 is installed on the positioning device 5 of the machine tool 1 near the punching pressure column 49. A first camera 31 is installed on the side of the spacing pressure knife 41 corresponding to the pre-punching pressure column 42. The first camera 31 is used to observe the spacing holes pressed out by the spacing pressure knife 41. Through algorithm recognition, the rotation of the conveyor roller 22 is controlled according to the length of the adjacent spacing holes to realize the feeding of the plate and achieve the periodic uniform advancement of the plate. The second camera 32 and the first camera 31 form a loop to monitor whether there is a deviation in the feed amount of the spacing holes and control the error so that the center hole punched out by the pre-punching pressure column 42 on the workpiece can be inserted into the positioning pin 51. At the same time, when the positioning pin 51 enters the center hole, it can drive the plate to achieve a small displacement, so that the center hole and the positioning pin 51 are aligned on the same axis, and the workpiece is shipped out in a uniform array. By punching the center hole in two steps by the pre-punching pressure column 42, the positioning pin 51 and the cutting pressure knife 52 reduce the problems caused by the small error of the conveyor roller 22.

[0028] Please see Figure 1 and Figure 2 A method for producing centering recesses for bearing end caps: S1: Control feed; S101: Pre-spacing holes; Based on the workpiece size to be processed, according to the workpiece diameter, multiple spacing holes are opened using a spacing press 41 array. The size of the spacing holes is larger than the workpiece size, which is convenient for machine tool 1 camera recognition. The workpiece is processed through the plate between two spacing holes. The length of the plate between two adjacent spacing holes is at least twice the size of the workpiece, as a allowance for deformation of the plate during workpiece processing.

[0029] S2: Processing the workpiece; S201: Pre-punching the gasket; According to the required processing size, a pre-punching column 42 is used to punch a hole in the middle position between two adjacent holes. The diameter of the pre-punching hole is smaller than the required center hole size of the workpiece. Punching is divided into two steps. First, the two-step punching operation can be realized. The punching is completed in the last step, realizing the fixing and overall workpiece cutting, and realizing the precise positioning and cutting of the workpiece plate. Second, priority punching. When the gasket is deformed, the plate will wrinkle and accumulate stress. By using the pre-punching column 42 to achieve pre-punching, the subsequent steps are reduced, the internal stress is released when the plate is deformed, and the deformation allowance of the material is increased when the plate is compressed.

[0030] S202: Pre-stretching of the gasket; depending on the required workpiece thickness, such as 1.5mm, the first pressure column 43 is used to pre-press to 130%-140% of the thickness, i.e., 1.6mm-1.75mm. The first pressure column 43 achieves the first compression. Through pre-stretching, the thickness of the workpiece is compressed first. The first compression directly compresses the sheet to the required thickness of the workpiece, which is difficult. The thickness of the sheet varies slightly each time and cannot be adjusted according to each sheet. Through pre-stretching, multiple stretchings are performed. The first compression by the first pressure column 43 can reduce the impact of the initial thickness difference of the sheet and reduce the problems caused by subsequent stretching.

[0031] S203: Gasket size deep pressing; depending on the required workpiece thickness, such as 1.5mm, use the second pressure column 44 to press to 95%-100% of the thickness, which is 1.425mm-1.5mm. First, compress the thickness to be less than the workpiece thickness. When performing the subsequent step S204, the required pressure can be reduced. In the subsequent step S205, the size will be restored to the specified thickness.

[0032] S204: Rounding; The bearing end cap of the workpiece forms the bearing gasket. The ball track is opened in the workpiece using a rounded corner pressure post 45. The thickness is pre-compressed in step S203 to reduce the pressure required for rounding and reduce the pressure required; at the same time, it lays the groundwork for the subsequent step S206 and reduces the difficulty of the ball track.

[0033] S205: Deformation Repair; Steps S201 to S204 have completed the correction of the shim thickness and the pressing of the ball track fillet; the previous steps with larger deformations have been completed. By repairing the deformation and utilizing the interaction between the repair pressure column 46 and the lower mold, the thickness of the overall workpiece is finally adjusted.

[0034] S206: Flattening the ball track; Through the rounding of the corners in S204, the initial forming of the ball track is achieved. The workpiece is used in the environment of a rotating shaft shim. For round workpieces, secondary flattening is required. The ball track is flattened by the flattening pressure column 47. This step only flattens the ball track. When rounding the corners, the thickness of the ball track is the standard thickness. This S206 step only flattens the ball track to achieve a high degree of flatness when the bearing in the ball track rotates after assembly.

[0035] S207: Flat wrinkle; Steps S202 and S203 will cause deformation wrinkles to appear around the edge of the sheet. After the workpiece thickness is pressed, the flat wrinkle pressing column 48 is pressed downward to flat wrinkle the upper surface of the workpiece, pushing the material deformation of the sheet towards the position between the two adjacent workpieces, thus achieving a high degree of flatness of the workpiece.

[0036] S208: Formal punching; After pre-punching with the shim in step S201, the pre-punched hole is punched a second time with the punching pressure column 49 until the workpiece reaches the marked dimensions, thus achieving standardized operation of the workpiece.

[0037] S209: Positioning pin 51 is inserted; observation is conducted through camera 2 32, which forms a loop with camera 1 31 to monitor whether there is a deviation in the feed amount of the spacing hole, control the error, and ensure that the center hole punched out by the pre-punching column 42 on the workpiece can be inserted into the positioning pin 51. At the same time, when the positioning pin 51 enters the center hole, it can drive the plate to achieve a small displacement, so that the center hole and the positioning pin 51 are set on the same axis. According to the size of the center hole of the workpiece to be processed, the pre-punching hole of the workpiece is punched. Through the two-step operation of punching the center hole by the pre-punching column 42, positioning pin 51 and cutting pressure knife 52, the problem caused by the small error brought by the conveyor roller 22 is reduced.

[0038] S210: Cutting; The final cutting of the workpiece is completed by the cutting pressure knife 52, ensuring the dimensional accuracy and edge quality of the workpiece, realizing the complete closed loop of the processing flow, and the workpiece is collected by the machine tool 1.

[0039] S3: Detection; S301: Camera 31 identifies the spacing hole; The spacing hole is identified by camera 31 through S101, and the spacing hole is illuminated. The position of camera 31 does not change, so that the host can directly compare the photos taken by camera 31 each time. The spacing hole is located in the center of camera 31. S302: Identify the movement distance of the spacing holes; the spacing holes are identified and photographed by camera 31 in S301, and the plate is moved by the conveying device 2 of machine tool 1. The transmission speed of the conveying device 2 is v. The time from the start time of the movement of the spacing hole identified by camera 31 to the time of the next spacing hole is t. The displacement distance of the spacing hole is s, s=vt; the displacement distance of the spacing hole is identified by S302, and the position of the stopping point after the displacement of the spacing hole is identified in step S301 is consistent. The distance between adjacent spacing holes is much larger than the workpiece size, and an error value is reserved.

[0040] S304: Camera 2 32 identifies the spacing hole; the spacing hole made by S101 is identified by camera 2 32, and the spacing hole is identified and illuminated. The position of camera 1 31 does not change, so that the host can directly compare the photos taken by camera 1 31 each time. The spacing hole is located in the center of camera 1 31.

[0041] S305: Data is transmitted to the main control unit to identify the feed rate; S304 and S301 identify whether the distance between the spacing holes has changed. Since the positions of camera 1 31 and camera 2 32 do not change, the images from S301 and S304 are transmitted to the main control unit. Through fine comparison, the displacement of the spacing holes is identified. When the displacement differs too much from the distance between camera 1 31 and camera 2 32, the transmission device 2 is adjusted.

[0042] Explanation of the effects of the method of the present invention: Explanation of the effects of S1 (control feed) and S101 (pre-spacing holes): By opening spacing holes larger than the workpiece size in the array, a positioning reference that can be identified by the camera of the machine tool 1 is formed. The length of the plate between adjacent spacing holes is set to more than twice the workpiece size, so as to reserve sufficient allowance for plate deformation in subsequent processing, ensure feed control accuracy and processing stability, and avoid processing errors caused by insufficient deformation.

[0043] S201 (Gasket Pre-punching) Effect Description: Pre-punching is performed at the midpoint of adjacent holes, with a hole diameter smaller than the target center hole size. A step-by-step punching strategy achieves precise positioning and cutting preparation. The pre-punching operation prioritizes releasing sheet stress, reducing internal stress accumulation during subsequent deformation, and provides deformation allowance for sheet compression, ensuring accurate sheet positioning during subsequent processing.

[0044] S202 (Gasket Pre-stretching) Effect Description: Based on the workpiece thickness requirements, multiple stretching pre-treatments are performed. The sheet thickness is gradually compressed through the first pressure column 43, reducing the impact of initial thickness differences on processing. The step-by-step stretching strategy effectively reduces the difficulty of single compression, avoids processing problems caused by uneven sheet thickness, and provides a uniform material state for subsequent deep pressing.

[0045] S203 (Deep Pressing of Shim Size) Effect Description: This step pre-presses the sheet thickness to slightly less than the target size, reducing the pressure required for subsequent processing and creating favorable conditions for rounding corners and ball runner forming. This step, together with S202, forms a continuous thickness adjustment process, ensuring that the sheet has uniform deformation characteristics in subsequent steps.

[0046] S204 (Rounded Corners) Effect Description: Utilizing the sheet material's condition after previous thickness adjustments, this process reduces the pressure required for rounding corners and simultaneously prepares the surface for flattening. The rounded corner operation, combined with the deep pressing of S203, reduces the difficulty of surface shaping and improves shaping accuracy.

[0047] S205 (Deformation Repair) Effect Description: Through the synergistic action of the repair pressure column 46 and the lower mold, the thickness deviation and deformation caused by the previous steps are finally adjusted to ensure that the overall thickness of the workpiece meets the design requirements and to provide a benchmark for subsequent flatness processing.

[0048] S206 (Stone Course Flattening) Effect Description: Based on the initial shape of the ball course after rounding, the ball course is flattened a second time using the flattening column 47 to improve its flatness and ensure the high precision required for bearing rotation. This step, together with S204, forms a complete ball course forming process, guaranteeing forming quality.

[0049] S207 (Smoothing Wrinkles) Effect Description: This step smooths the wrinkles caused by the peripheral deformation in steps S202 and S203. By pushing the material to deform into the gap between adjacent workpieces, it achieves a high degree of flatness on the upper surface of the workpiece, providing a flat reference for subsequent punching and cutting.

[0050] Explanation of the effects of S208 (formal punching) and S209 (insertion of positioning pin 51): Through loop monitoring by camera 2 32 and camera 1 31, the positioning accuracy of the pre-punching is ensured. Utilizing the synergistic effect of positioning pin 51, pre-punching pressure column 42, and cutting pressure knife 52, the center hole punching operation is completed step by step. Insertion of positioning pin 51 ensures coaxial alignment between the center hole and positioning pin 51, reducing transmission errors and improving punching accuracy.

[0051] S210 (Cutting) Effect Description: Based on the positioning and deformation control of the preceding steps, the final cutting of the workpiece is completed by the cutting pressure tool 52, ensuring the dimensional accuracy and edge quality of the workpiece and realizing a complete closed loop of the processing flow. The sequential execution of each step forms a continuous processing logic. The preceding steps provide positioning reference, deformation control and accuracy assurance for the subsequent steps, thus improving the overall processing effect and finished product quality.

[0052] This bearing end cap centering and pressing device and method, through a systematic design of processing steps, achieves precise control of the entire process from sheet metal feeding to finished product cutting. Specific performance results are as follows: Feed control and positioning reference construction: A positioning reference that can be recognized by the machine tool camera is formed by a pre-spacing hole array. With the loop monitoring of camera 1 31 and camera 2 32, the uniform cyclic advance of the sheet metal and the correction of feed deviation are realized, ensuring the positioning accuracy of each processing step and providing a stable reference for subsequent deformation control.

[0053] Deformation control and thickness adjustment are coordinated: the pre-punching of the shim releases the stress of the sheet metal first, reducing the accumulation of internal stress in subsequent deformation; the pre-stretching of the shim and the deep pressing of the dimensions form a continuous thickness adjustment process, which reduces the impact of the initial thickness difference through step-by-step compression, creating favorable conditions for rounding corners and ball track forming; the deformation is repaired by the coordinated action of the pressure column and the lower die, which ultimately adjusts the overall thickness of the workpiece to ensure that the dimensions meet the design requirements.

[0054] Ball track forming and flatness assurance: The rounding operation reduces the forming pressure by utilizing the state of the sheet metal after the previous thickness adjustment, and achieves secondary flattening in conjunction with ball track flattening to improve ball track flatness; the wrinkle flattening operation promotes material deformation to push the surrounding deformation wrinkles, achieving high flatness of the workpiece surface and providing a flat benchmark for punching and cutting.

[0055] Improved center hole positioning and cutting accuracy: By performing pre-punching, insertion of positioning pin 51 and formal punching in stages, combined with camera monitoring and coaxial setting of positioning pin 51, transmission error is reduced and the center hole punching accuracy is improved; the cutting pressure knife 52 completes the final cutting based on the previous positioning and deformation control, ensuring the workpiece dimensional accuracy and edge quality, forming a complete closed loop of the processing flow.

[0056] The overall processing logic is coherent: each step is executed sequentially to form a continuous processing logic. The preceding steps provide positioning references, deformation control and accuracy assurance for the following steps, thereby improving the overall processing effect and finished product quality, and achieving high-precision and high-stability production of bearing end caps.

[0057] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for centering and pressing in a bearing end cap, characterized in that: The machine tool (1) is horizontally arranged on its upper surface. The machine tool (1) is equipped with a conveying device (2). The machine tool (1) is provided with a spacing pressure knife (41), a pre-punching pressure column (42), a first pressure column (43), a second pressure column (44), a rounded corner pressure column (45), a repair pressure column (46), a flattening pressure column (47), a wrinkle-flattening pressure column (48), a punching pressure column (49), and a positioning device (5) in sequence from the feed end to the discharge end.

2. A device for centering and recessing bearing end caps according to claim 1, characterized in that: The conveying device (2) includes a conveying platform (21), with conveying frames fixed at both ends of the conveying platform (21), and conveying rollers (22) with their axes horizontally connected to the conveying frames.

3. A device for centering and recessing bearing end caps according to claim 2, characterized in that: The positioning device (5) includes a positioning pin (51) and a cutting pressure knife (52) arranged coaxially.

4. A device for centering and recessing bearing end caps according to claim 3, characterized in that: The machine tool (1) is equipped with matching lower molds for the positions of the corresponding spacing pressure knife (41), pre-punching column (42), first pressure column (43), second pressure column (44), rounded corner pressure column (45), repair pressure column (46), flattening pressure column (47), wrinkle flattening pressure column (48), and punching pressure column (49).

5. A device for centering and pressing a bearing end cap according to claim 4, characterized in that: A second camera (32) is provided between the positioning device (5) on the machine tool (1) and the punching pressure column (49), and a first camera (31) is provided on the side of the pressure knife (41) corresponding to the pre-punching pressure column (42).

6. A method for producing centering recesses in bearing end caps, characterized in that: S1: Control feed; S101: Pre-spacing holes; S2: Processing the workpiece, this step specifically includes: S201: Pre-punching of the shim, punching a pre-punch hole with a diameter smaller than the required center hole size of the workpiece at the midpoint between two adjacent shims; S202: Pre-stretching of the shim, pre-punching the sheet metal to 130%-140% of the required workpiece thickness; S203: Deep pressing of the shim, pre-punching the sheet metal to 95%-100% of the workpiece thickness; S3: Inspection.

7. A method for producing a centering recess in a bearing end cap according to claim 6, characterized in that: Step S2 also includes: S204: rounding corners; S205: deformation repair, adjusting the overall thickness of the workpiece by using the interaction between the repair pressure column (46) and the lower die; S206: ball track flattening, flattening the ball track by using the flattening pressure column (47); S207: wrinkle smoothing, pushing the material deformation on the upper surface of the workpiece towards the position between two adjacent workpieces; S208: formal punching, performing secondary punching on the pre-punched hole to the standard size of the workpiece; S209: positioning pin (51) insertion, through the loop monitoring of camera two (32) and camera one (31), the positioning pin (51) is inserted into the center hole punched by the pre-punching pressure column (42) and drives the plate to move slightly, so that the center hole and the positioning pin (51) are set on the same axis; S210: cutting, completing the final cutting of the workpiece by using the cutting pressure knife (52).

8. A method for producing a centering recess in a bearing end cap according to claim 7, characterized in that: S1: Control feed; S101: Pre-spacing holes. Multiple spacing holes larger than the workpiece size are arrayed according to the workpiece diameter size, based on the workpiece size to be processed. The length of the plate between two adjacent spacing holes is at least twice the workpiece size.

9. A method for producing a centering recess in a bearing end cap according to claim 8, characterized in that: Step S3 includes S301: Camera 1 (31) identifies the spacing hole; S302: Identify the distance the spacing hole moves; S304: Camera 2 (32) identifies the spacing hole; S305: Data is transmitted to the main controller to identify the feed amount.

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