A device and method for machining both ends of a column

Abstract

The present application relates to the technical field of end face processing of column material, in particular to a column material two-end processing device and method. The column material two-end processing device comprises a supporting part, a pressing part, an axial limiting part and an elastic driving part. The pressing part is used to drive the outer peripheral wall of the column body to abut against the supporting part and the pressing part respectively. The axial limiting part comprises two first abutting surfaces and two second abutting surfaces. The elastic driving part is connected with the axial limiting part. The distance between the two first abutting surfaces is greater than the distance between the two second abutting surfaces. Two processing parts are used to process the two end faces of the column material. In the first installation orientation, the elastic driving part can drive the two first abutting surfaces to abut against the two side walls of the assembly groove in linear contact. In the second installation orientation, the elastic driving part can drive the two second abutting surfaces to abut against the two side walls of the assembly groove in linear contact. In this way, the problem that the process is complicated when positioning column materials of different specifications, and the end processing of the column material cannot meet the high-precision requirements is solved.

Description

Technical Field

[0001] This invention relates to the field of column end face processing technology, and more specifically, to a device and method for processing both ends of a column. Background Technology

[0002] Columns with assembly slots are commonly used components in mechanical assembly, construction, and other fields. They have a columnar structure with assembly slots on their side walls for precise mating with other components. To meet subsequent assembly accuracy requirements, the end faces of the column must be ground. Fine grinding ensures the flatness, symmetry, perpendicularity, and dimensional consistency of the end faces, guaranteeing a reliable fit during assembly and ensuring the structural stability and performance of the overall product.

[0003] During the grinding of cylindrical blank end faces, precise positioning of the annular groove in the middle of the workpiece is required to prevent the symmetry of the two end faces relative to the center line of the central annular groove from deviating, which would affect the assembly accuracy requirements of the finished product. Current machining methods often use locating blocks to clamp the sidewalls of the assembly groove for positioning. However, the dimensions of the assembly groove vary for different specifications of cylindrical blanks, requiring replacement of the locating blocks when changing workpieces. This process is cumbersome, tooling costs are high, and machining efficiency decreases. Furthermore, the assembly gap between the locating blocks and the groove wall allows for slight displacement of the cylindrical blank during machining, causing deviations in the symmetry of the two end faces relative to the center line of the central annular groove. This makes it difficult to meet the requirements of high-precision machining and subsequent assembly. Summary of the Invention

[0004] To address the issues of cumbersome positioning procedures for column materials of different specifications and the difficulty in meeting high-precision requirements for the end processing of column materials, this invention provides a processing device and method for both ends of column materials.

[0005] The column material includes a column body and an assembly groove; the assembly groove is annular and recessed into the outer peripheral wall of the column body; the assembly groove is coaxially arranged with the column body.

[0006] In a first aspect, the processing device for both ends of the column material provided by the present invention includes:

[0007] The support portion has a positioning groove with a V-shaped cross-section;

[0008] A pressing part is used to drive the column to move closer to the positioning groove until the outer peripheral wall of the column abuts against the two side walls of the positioning groove and the pressing part, respectively.

[0009] The axial limiting part includes two first abutting surfaces and two second abutting surfaces; the two first abutting surfaces are arranged opposite each other along a first direction; the two second abutting surfaces are arranged opposite each other along a second direction; the first direction and the second direction intersect.

[0010] An elastic driving part is connected to the axial limiting part; in a direction away from the elastic driving part, the distance between the two first abutting surfaces gradually decreases, and the distance between the two second abutting surfaces gradually decreases; in the same reference section, the distance between the two first abutting surfaces is greater than the distance between the two second abutting surfaces; the first direction and the second direction are respectively parallel to either of the reference sections;

[0011] Two processing sections are used to process the two end faces of the column material;

[0012] The axial limiting part has a first mounting position and a second mounting position. In the first mounting position, the first direction is parallel to the extension direction of the positioning groove, so that the elastic driving part can drive the two first abutting surfaces to contact and abut against the two side walls of the assembly groove respectively. In the second mounting position, the second direction is parallel to the extension direction of the positioning groove, so that the elastic driving part can drive the two second abutting surfaces to contact and abut against the two side walls of the assembly groove respectively.

[0013] Optionally, the first direction is perpendicular to the second direction.

[0014] Optionally, in all the reference sections, the minimum distance between the two first abutting surfaces is a1, the maximum distance between the two first abutting surfaces is a2, the minimum distance between the two second abutting surfaces is b1, and the maximum distance between the two second abutting surfaces is b2; a1 is less than b2; a1 is greater than b1.

[0015] Optionally, the range from a1 to b2 accounts for a first proportion of the range from a1 to a2; the range from a1 to b2 accounts for a second proportion of the range from b1 to b2; the first proportion is greater than the second proportion.

[0016] Alternatively, a2 = b2.

[0017] Secondly, the column material processing method provided by the present invention is applied to a column material processing apparatus as described in any one of the first aspects, wherein the column material processing method comprises:

[0018] Obtain the width dimensions of the assembly slots for all the column materials to be processed;

[0019] The specifications of the column material are classified; wherein the specifications include a first specification range and a second specification range; the initial spacing range of the two first contact surfaces when the number of grinding cycles is 0 covers the first specification range; the initial spacing range of the two second contact surfaces when the number of grinding cycles is 0 covers the second specification range; the minimum value of the first specification range is greater than the maximum value of the second specification range;

[0020] The first contact surface abuts against the assembly groove, and the first specification column material with the width dimension of the assembly groove within the first specification range is processed sequentially;

[0021] When the service life of the first contact surface reaches the life threshold, the first contact surface is ground to eliminate the indentation on the first contact surface and the service life of the first contact surface is reset to 0.

[0022] When the usage time of the first abutting surface is reset to 0, the operation mode of using the first abutting surface to abut the assembly groove is returned to be executed, and the first specification column material with the width dimension of the assembly groove within the first specification range is processed sequentially until the first specification column material is processed.

[0023] After the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. The second specification column material with the width of the assembly groove within the second specification range is processed in sequence until the service life of the first abutment surface and the second abutment surface both reach the service life threshold. At the same time, the first abutment surface and the second abutment surface are ground to eliminate indentations.

[0024] Optionally, the step of grinding the first abutment surface when its service life reaches a lifespan threshold to eliminate indentations and reset its service life to 0 includes:

[0025] When the service life of the first contact surface reaches the lifespan threshold, it is determined whether the initial spacing range of the second contact surface covers the first specification range.

[0026] Since the initial spacing range of the second abutment surface does not cover the first specification, the first abutment surface is ground to eliminate the indentation on the first abutment surface and reset the service life of the first abutment surface to 0.

[0027] Based on the initial spacing range of the second abutment surface covering the first specification, the first specification column material is processed sequentially by using the working method of the second abutment surface abutting the assembly groove;

[0028] When the service life of the second contact surface reaches the lifespan threshold, the first contact surface and the second contact surface are simultaneously ground to eliminate the indentations on the first contact surface and the second contact surface, and the service life of the first contact surface and the second contact surface is reset to 0.

[0029] Optionally, the specification range further includes a third specification range, wherein the initial spacing range of the two first contact surfaces when the number of grinding cycles is 0 covers the third specification range; the initial spacing range of the two second contact surfaces when the number of grinding cycles is 0 covers the third specification range; the maximum value of the third specification range is the minimum value of the first specification range; and the minimum value of the third specification range is the maximum value of the second specification range.

[0030] After the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. Second specification columns with a width within the second specification range are processed sequentially until the service life of both the first and second abutment surfaces reaches the lifespan threshold. Simultaneously, the first and second abutment surfaces are ground to eliminate indentations. This includes:

[0031] After the first specification column material is processed, the first contact surface abuts against the assembly groove, and the column material of the third specification within the third specification range with the width dimension of the assembly groove is processed in sequence.

[0032] When the service life of the first contact surface reaches the lifespan threshold, the first contact surface is ground to eliminate the indentations on the first contact surface and reset the service life of the first contact surface to 0.

[0033] Once the first abutment surface has been ground, determine whether the axial limiting portion meets the first condition; the first condition includes that the minimum distance between the first abutment surfaces is equal to the minimum distance between the second abutment surfaces.

[0034] If the axial limiting part does not meet the first condition, return to the operation of the first specification column material after the first specification column material is processed, and use the first abutting surface to abut the assembly groove to process the third specification column material with the width dimension of the assembly groove in the third specification range in sequence.

[0035] After the third specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. The second specification column material with the width of the assembly groove within the second specification range is processed in sequence until the service life of the first abutment surface and the second abutment surface both reach the service life threshold. At the same time, the first abutment surface and the second abutment surface are ground to eliminate indentations.

[0036] Optionally, after the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. Second specification columns with a width within the second specification range are processed sequentially until the service life of both the first and second abutment surfaces reaches the lifespan threshold. Simultaneously, the first and second abutment surfaces are ground to eliminate indentations. This further includes:

[0037] If the currently used axial limiting part meets the first condition, replace it with a new axial limiting part, and return to the operation mode of using the first abutting surface to abut the assembly groove after the first specification column material is processed, and process the third specification column material with the width dimension of the assembly groove in the third specification range in sequence.

[0038] Optionally, after the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. Second specification columns with a width within the second specification range are processed sequentially until the service life of both the first and second abutment surfaces reaches the lifespan threshold. Simultaneously, the first and second abutment surfaces are ground to eliminate indentations. This further includes:

[0039] If all axial limiting parts meet the first condition, and the remaining number of the third specification column materials is greater than 0, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove to process the third specification column materials in sequence until the service life of the first abutment surface and the second abutment surface both reach the service life threshold. At the same time, the first abutment surface and the second abutment surface are ground to eliminate indentations.

[0040] To address the issues of cumbersome positioning processes for column materials of different specifications and the difficulty in meeting high-precision requirements for end processing of column materials, this invention offers the following advantages:

[0041] By using a support section with a V-shaped cross-section positioning groove in conjunction with a clamping section, radial positioning constraints can be formed on the column, fixing the column's placement posture, maintaining the stability of the column's axis, and preventing radial displacement of the column during processing. Through a combination of an axial limiting section and an elastic driving section, and with the axial limiting section's switchable first and second mounting positions, the first abutment surface can form line contact with the two side walls of the assembly groove, or the second abutment surface can form line contact with the two side walls of the assembly groove, depending on the width of the assembly groove. The elastic driving section adapts to assembly grooves of different widths. This structure eliminates the assembly gap between the limiting structure and the assembly groove wall, effectively reducing minor wobbling and axial displacement during column processing. It achieves consistent control of the processing dimensions of the two end faces of the column and ensures that the symmetry of the two end faces of the column relative to the center line of the central annular groove meets the workpiece assembly accuracy requirements, thus improving the end face grinding accuracy. Meanwhile, the device can adapt to the processing of different specifications of column materials without replacing the limit device, simplifying the workpiece changeover process, reducing the investment in tooling consumables, shortening the material changeover time, and ultimately solving the problems of small limit adaptation range, large processing size deviation, complicated changeover process, high processing cost, and low production efficiency of traditional processing equipment. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of a processing device for both ends of a column material according to one embodiment;

[0043] Figure 2 for Figure 1 Structural diagram of the central clamping part, the supporting part, and the column;

[0044] Figure 3 This is a schematic diagram of the structure of an axial limiting part according to one embodiment;

[0045] Figure 4 This is a schematic diagram of the axial limiting part in another embodiment;

[0046] Figure 5 The solid line in the middle is Figure 3 The front view of the central axis limiting part, with the dashed line as... Figure 4 Front view of the central axis limiting part;

[0047] Figure 6 This is a flowchart illustrating a method for processing both ends of a column material according to one embodiment.

[0048] Figure label:

[0049] 10. Column material; 11. Column body; 12. Assembly groove; 20. Support part; 30. Clamping part; 40. Axial restraint part; 41. First abutment surface; 42. Second abutment surface. Detailed Implementation

[0050] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0051] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0052] For cylindrical materials with coaxial, annular, recessed assembly grooves on their outer periphery, dimensional limits must be implemented to prevent machining deviation during end face processing. Current processing methods primarily rely on locating blocks to hold the assembly groove sidewalls for positioning. However, due to variations in assembly groove dimensions for different cylindrical material specifications, locating blocks must be replaced when changing cylindrical material shapes. This not only complicates the processing steps and increases tooling costs but also reduces overall processing efficiency. Furthermore, an assembly gap exists between the locating blocks and the assembly groove sidewalls, allowing for slight displacement of the cylindrical material during end face processing. This results in dimensional deviations between the cylindrical material's end faces and the assembly groove, failing to meet high-precision machining requirements and hindering compatibility with subsequent assembly needs.

[0053] Example 1:

[0054] This embodiment proposes a processing device for both ends of the column 10, used for processing the column 10. For example... Figure 1 As shown, the column 10 includes a column body 11 and an assembly groove 12; the assembly groove 12 is annular and recessed into the outer peripheral wall of the column body 11; the assembly groove 12 is coaxially arranged with the column body 11.

[0055] like Figure 1 As shown, the processing device for both ends of the column 10 proposed in this embodiment includes a support part 20, a pressing part 30, an axial limiting part 40, an elastic driving part, and two processing parts.

[0056] like Figure 2 As shown, the support part 20 has a positioning groove with a V-shaped cross-section. In this way, the support part 20 can initially limit the radial movement of the column 10, preventing the column 10 from rolling or shifting at will.

[0057] The clamping part 30 is used to drive the column 11 to move closer to the positioning groove, until the outer peripheral wall of the column 11 abuts against the two side walls of the positioning groove and the clamping part 30 respectively. In this way, in cooperation with the support part 20, the placement posture of the column 10 can be fixed, ensuring the stability of the axial state of the column 10 and avoiding radial displacement of the column 10 during subsequent processing.

[0058] The axial limiting part 40 includes two first abutting surfaces 41 and two second abutting surfaces 42; the two first abutting surfaces 41 are arranged opposite each other along a first direction; the two second abutting surfaces 42 are arranged opposite each other along a second direction; the first direction and the second direction intersect.

[0059] The elastic drive part is connected to the axial restraint part 40; in the direction away from the elastic drive part, the distance between the two first abutment surfaces 41 gradually decreases, and the distance between the two second abutment surfaces 42 gradually decreases; in the same reference section, the distance between the two first abutment surfaces 41 is greater than the distance between the two second abutment surfaces 42; the first direction and the second direction are parallel to either reference section. In this way, the axial restraint part 40 can adapt to the assembly groove 12 with different groove widths, and the distance between the first abutment surfaces 41 is greater than the distance between the second abutment surfaces 42, so that the second abutment surfaces 42 can adapt to the column 10 with a smaller width of the assembly groove 12.

[0060] Two machining sections are used to machine the two end faces of the column 10.

[0061] The axial limiting part 40 has a first mounting position and a second mounting position; in the first mounting position, the first direction is parallel to the extension direction of the positioning groove, so that the elastic driving part can drive the two first abutting surfaces 41 to contact and abut against the two side walls of the assembly groove 12 respectively.

[0062] In the second installation position, the second direction is parallel to the extension direction of the positioning groove, so that the elastic drive part can drive the two second abutment surfaces 42 to contact and abut against the two side walls of the assembly groove 12 respectively.

[0063] By relying on the elastic force of the elastic drive unit to automatically adapt to the assembly slots 12 of different widths and continuously apply elastic clamping force, the first abutment surface 41 or the second abutment surface 42 can be tightly fitted to the sidewall of the assembly slot 12, eliminating the assembly gap present in traditional limiting structures and thus reducing the slight axial displacement of the column 10. This ensures that the distance from the two ground end faces to the assembly slot 12 remains consistent, improving machining accuracy. Moreover, when machining different models of column 10, there is no need to disassemble and replace the limiting parts, which simplifies the changeover operation, reduces tooling costs and material changeover time, and effectively improves machining efficiency.

[0064] In some embodiments, the first abutment surface 41 and the second abutment surface 42 are both planar. Such planar structures are easy to form. Moreover, when subsequent cutting to remove indentations, the planar grinding operation is simple, and the original shape and positioning ability can be quickly restored after repair, thereby improving overall efficiency. In other embodiments, the first abutment surface 41 and the second abutment surface 42 are both curved surfaces. During the process of elastic drive causing the abutment surfaces to fit together, the transition of the curved surfaces is smooth, and it is not easy to get stuck or scratch, which can improve the smoothness of the action during abutment.

[0065] Furthermore, the first direction is perpendicular to the second direction. This makes the first and second directions orthogonal. A 90-degree clockwise or counter-clockwise rotation horizontally allows switching between the first and second installation positions. This simplifies the adjustment process and improves work efficiency.

[0066] Furthermore, in all reference sections, the minimum distance between the two first abutment surfaces 41 is a1, the maximum distance between the two first abutment surfaces 41 is a2, the minimum distance between the two second abutment surfaces 42 is b1, and the maximum distance between the two second abutment surfaces 42 is b2; a1 is less than b2; a1 is greater than b1. Thus, the first abutment surfaces 41 can fit into the assembly groove 12 with a width range of a1~a2, and the second abutment surfaces 42 can fit into the assembly groove 12 with a width range of b1~b2. Because the minimum distance a1 is less than the maximum distance b2 of the second set, there is an overlap between the a1~a2 and b1~b2 ranges. When one set of abutment surfaces suffers scratches, wear, deformation, or other damage from long-term operation, another set of intact abutment surfaces can be directly replaced to complete the limiting function, reducing the frequency of replacing the axial limiting part 40 and the frequency of grinding the abutment surfaces, thereby reducing component wear and maintenance costs.

[0067] Furthermore, the range from a1 to b2 accounts for a first proportion of the range from a1 to a2; the range from a1 to b2 accounts for a second proportion of the range from b1 to b2; the first proportion is greater than the second proportion. Thus, the range from a1 to b2 accounts for a higher proportion of the adaptation range of the first abutment surface 41, making the first abutment surface 41 the main limiting structure. The second abutment surface 42 can be mainly used to limit the narrower column material 10 of the assembly groove 12. After the first abutment surface 41 is subjected to long-term pressure and develops indentations, the indentations can be removed by grinding its own thickness and reused without directly replacing parts, thus extending the service life of the axial limiting part 40. Since the first ratio is larger than the second ratio, meaning the overlap range is higher in a1~a2, the difference between a2 and b2 is smaller than the difference between a1 and b1, meaning a2 and b2 are closer. This allows the spacing range of the second contact surface 42 to accommodate the large-width column 10 of the assembly groove 12, thereby improving the fit of the large-width assembly groove 12. When indentations are generated during the processing of the column 10 of the large-width assembly groove 12, the spacing between the contact surfaces is reduced after grinding the first contact surface 41 or the second contact surface 42, thus still being able to accommodate the small-width assembly groove 12 and improving the service life of the axial limiting part 40.

[0068] Furthermore, in some embodiments, such as Figure 3 As shown, a2=b2. The maximum spacing of the first abutment surface 41 is equal to the maximum spacing of the second abutment surface 42. The first abutment surface 41 and the second abutment surface 42 can accommodate the same maximum width of the assembly slot 12. For large-sized column materials 10, both sets of limiting structures can meet the clamping and positioning requirements. When machining the column material 10 with the largest assembly slot 12, the first abutment surface 41 can be used as the main limiting component to undertake the operation. When the first abutment surface 41 is subjected to long-term force and develops indentations or surface wear, resulting in a decrease in positioning accuracy, the installation orientation can be switched, and the second abutment surface 42 can be used to limit the same large-sized assembly slot 12. The operation is simple and convenient.

[0069] In other embodiments, such as Figure 4 As shown, a2 is greater than b2. That is, the maximum spacing of the first contact surface 41 is greater than the maximum spacing of the second contact surface 42. Compared to the scheme where a2 = b2, as... Figure 5 As shown, this embodiment can increase the angle between the second contact surface 42 and the reference section. The solid line part is a structural schematic diagram of the axial limiting part 40 when a2 > b2, and the dashed line part is a structural schematic diagram of the axial limiting part 40 when a2 = b2. L2 is the angle between the second contact surface 42 and the reference section when a2 > b2, and L1 is the angle between the second contact surface 42 and the reference section when a2 = b2, i.e., L2 > L1. When the second contact surface 42 limits column materials 10 with different groove widths, the contact points of the two will be significantly misaligned. That is, the indentation spacing of column materials 10 of different specifications on the second contact surface 42 is far, and the newly generated indentation is far from the original old indentation area. Therefore, the contact position of the second contact surface 42 with a steeper slope has a greater displacement range as the groove width changes, which can further disperse the wear area, reduce the number of times the axial limiting part 40 needs to be repaired or replaced, extend the service life of the axial limiting part 40, and at the same time ensure the limiting stability and processing accuracy of the axial limiting part 40.

[0070] Example 2:

[0071] This embodiment also proposes a method for processing both ends of the column 10, applicable to a column 10 processing device in any embodiment of Embodiment 1, such as... Figure 6 As shown, the processing method for both ends of the column 10 includes steps S10, S20, S30, S40, S50, and S60. Steps S10, S20, S30, S40, S50, and S60 are executed sequentially.

[0072] Step S10: Obtain the width dimensions of the assembly slots 12 for all the column materials 10 to be processed. This provides data support for the limit during subsequent processing, avoiding problems such as specification mismatch and clamping failure during processing.

[0073] Step S20: Divide the column material 10 into different specification types; wherein, the specification types include a first specification range and a second specification range; the initial spacing range of the two first contact surfaces 41 when the grinding number is 0 covers the first specification range; the initial spacing range of the two second contact surfaces 42 when the grinding number is 0 covers the second specification range; the minimum value of the first specification range is greater than the maximum value of the second specification range. Workers can load materials in batches according to specifications. The first contact surface 41 is specifically adapted to the large-specification assembly slot 12, and the second contact surface 42 is specifically adapted to the small-specification assembly slot 12, avoiding mixed use of work surfaces and resulting in messy wear.

[0074] Step S30: Using the working method of the first abutting surface 41 abutting against the assembly groove 12, the first specification column material 10 with the width dimension of the assembly groove 12 within the first specification range is processed sequentially. This can fix the placement posture of the column material 10, and the first abutting surface 41 is tightly attached to the groove wall of the assembly groove 12, eliminating the assembly gap existing in the traditional limiting structure, thereby reducing the slight displacement of the column material 10, ensuring the stability of the axial state of the column material 10, avoiding radial displacement of the column material 10 during subsequent processing, and ensuring the processing accuracy of the processed surface.

[0075] Step S40: When the service life of the first abutment surface 41 reaches the life threshold, the first abutment surface 41 is ground to eliminate the indentations on the first abutment surface 41 and the service life of the first abutment surface 41 is reset to 0.

[0076] Step S50: When the usage time of the first abutment surface is reset to 0, return to step S30 until the processing of the first specification column 10 is completed. This eliminates wear marks on the abutment surface, restores the original fit and positioning accuracy of the first abutment surface 41, and avoids positioning deviation of the column 10 caused by marks; moreover, using a grinding and repair method instead of directly replacing the axial limiting part 40 can reduce the cost of component wear; after repair and re-entry into production, the service life of the axial limiting part 40 can be extended.

[0077] Step S60: After the first specification column material 10 is processed, the second abutment surface 42 and the first abutment surface 41 are alternately used to abut the assembly groove 12. The second specification column material 10 with the width dimension of the assembly groove 12 within the second specification range is processed sequentially. In this way, when an indentation occurs on a single abutment surface, the other abutment surface can be switched to continue processing without interrupting the processing flow and ensuring production continuity. This continues until the service life of the first abutment surface 41 and the second abutment surface 42 both reach their lifespan threshold. At the same time, the first abutment surface 41 and the second abutment surface 42 are ground to eliminate the indentation. This centralized and unified indentation grinding and repair operation eliminates the need for separate debugging and repair in multiple stages, simplifies the maintenance operation process, and reduces equipment downtime for maintenance.

[0078] Furthermore, step S40 includes steps S41, S42, S43, and S44.

[0079] Steps S10, S20, S30, S41, S42, S50, and S60 are executed sequentially.

[0080] Alternatively, steps S10, S20, S30, S41, S43, S44, S50, and S60 may be executed sequentially.

[0081] Step S41: When the service life of the first contact surface 41 reaches the life threshold, determine whether the initial spacing range of the second contact surface 42 covers the first specification range; in this way, the two types of working conditions, replaceable processing and non-replaceable processing, are distinguished in advance to avoid problems such as slot width mismatch and clamping failure caused by blindly switching the limit structure.

[0082] Step S42: Based on the fact that the initial spacing range of the second abutment surface 42 does not cover the first specification, the first abutment surface 41 is ground to eliminate the indentations on the first abutment surface 41, and the service life of the first abutment surface 41 is reset to 0. In this way, when the second abutment surface 42 is not suitable for the first specification column 10, the indentations can be removed by timely grinding, restoring the original positioning shape of the first abutment surface 41. The first specification column 10 can continue to be limited and processed by the first abutment surface 41, so as to avoid disrupting the batch processing rhythm of the first specification column 10 as much as possible.

[0083] Step S43: Based on the initial spacing range of the second abutment surface 42 covering the first specification, the first specification column material 10 is processed sequentially by using the working method of the second abutment surface 42 abutting the assembly groove 12. In this way, it is not necessary to grind the first abutment surface 41 to remove the indentation. The second abutment surface 42 can be used directly for positioning and processing. This will not interrupt the production process and can improve the overall processing efficiency.

[0084] Step S44: When the service life of the second contact surface 42 reaches the life threshold, the first contact surface 41 and the second contact surface 42 are simultaneously ground to eliminate the indentations on the first contact surface 41 and the second contact surface 42. The service life of the first contact surface 41 and the second contact surface 42 is reset to 0, and the process returns to step S30. This centralized and synchronous grinding of the indentations on the first contact surface 41 and the second contact surface 42 simplifies maintenance operations, shortens equipment downtime, and improves overall processing efficiency compared to separate maintenance in stages.

[0085] Furthermore, the specification range also includes a third specification range, where the initial spacing range of the two first contact surfaces 41 when the number of grinding cycles is 0 covers the third specification range; the initial spacing range of the two second contact surfaces 42 when the number of grinding cycles is 0 covers the third specification range; the maximum value of the third specification range is the minimum value of the first specification range; and the minimum value of the third specification range is the maximum value of the second specification range.

[0086] Step S60 includes steps S61, S62, S63, S64, and S65. Steps S61, S62, S63, S64, and S65 are executed sequentially.

[0087] Step S61: After the first specification column material 10 is processed, the first contact surface 41 is used to contact the assembly groove 12 to process the third specification column material 10 whose width dimension is within the third specification range.

[0088] Step S62: When the service life of the first abutment surface 41 reaches the lifespan threshold, the first abutment surface 41 is ground to eliminate the indentations on the first abutment surface 41, and the service life of the first abutment surface 41 is reset to 0. By timely grinding to remove the indentations and restore the original positioning shape of the first abutment surface 41, the third specification can continue to be limited and processed through the first abutment surface 41, thus minimizing disruption to the batch processing rhythm of the third specification column material 10.

[0089] Step S63: When the first abutting surface 41 is ground, determine whether the axial limiting part 40 meets the first condition; the first condition includes that the minimum distance between the first abutting surfaces 41 and the minimum distance between the second abutting surfaces 42 are equal.

[0090] Step S64: If the axial limiting part 40 does not meet the first condition, return to step S61.

[0091] Step S65: After the third specification column 10 is processed, the second abutment surface 42 and the first abutment surface 41 are alternately used to abut the assembly groove 12. The width of the assembly groove 12 is processed sequentially on the second specification column 10 within the second specification range until the service life of the first abutment surface 41 and the second abutment surface 42 both reach the service life threshold. At the same time, the first abutment surface 41 and the second abutment surface 42 are ground to eliminate indentations.

[0092] In this way, when an indentation occurs on a single contact surface, the other contact surface can be switched to continue processing without interrupting the processing flow, ensuring production continuity. This continues until both the first contact surface 41 and the second contact surface 42 reach their lifespan thresholds, at which point both surfaces are ground to eliminate the indentation. This centralized and unified indentation grinding repair operation eliminates the need for separate adjustments and repairs, simplifying maintenance procedures and reducing equipment downtime.

[0093] This process sequentially completes the entire process for large, medium, and small sizes, forming a standardized closed-loop processing flow that balances production efficiency, processing accuracy, and component durability.

[0094] In some embodiments, when a2 is greater than b2, the first specification range is b2~a2, the second specification range is b1~a1, and the third specification range is a2~b2.

[0095] When a2 equals b2, the maximum value of the first specification range is a2, and the minimum value of the first specification range is less than b2; the minimum value of the first specification range is equal to the maximum value of the third specification range; the minimum value of the third specification range is b2, and the second specification range is b1~a1.

[0096] Furthermore, step S60 also includes step S66. Steps S61, S62, S63, and S66 are executed sequentially.

[0097] Step S66: If the currently used axial limiting part 40 meets the first condition, replace it with a new axial limiting part 40 and return to step S61. This avoids excessive grinding and thinning of the first abutment surface 41, and prevents the minimum distance between the first abutment surfaces 41 from being less than the minimum distance between the second abutment surfaces 42, thereby preserving the ability of the first abutment surface 41 to limit the subsequent positioning of the second specification small-sized assembly groove 12.

[0098] Furthermore, step S60 also includes step S67. Steps S61, S62, S63, and S67 are executed sequentially.

[0099] Step S67: If all axial limiting parts 40 meet the first condition, and the number of remaining third-specification column materials 10 is greater than 0, the third-specification column materials 10 are processed sequentially by alternating the working method of the second abutting surface 42 and the first abutting surface 41 abutting the assembly groove 12, until the service life of the first abutting surface 41 and the second abutting surface 42 both reach their lifespan threshold. At the same time, the first abutting surface 41 and the second abutting surface 42 are ground to eliminate indentations. In this way, the remaining processing tasks are completed using the existing axial limiting parts 40. After all axial limiting parts 40 reach the grinding critical size, there are still unfinished third-specification column materials 10. Taking advantage of the fact that both types of abutting surfaces can be adapted to this specification, they are alternately limited and processed without immediately stopping the machine to replace parts, which can reduce production delays. After both surfaces reach their service life limit, they are uniformly ground to remove indentations. The operation process is simplified through centralized maintenance, which can also reduce the replacement frequency of the axial limiting parts 40.

[0100] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the scope of this disclosure.

Claims

1. A device for processing both ends of a column, the column comprising a column body and an assembly groove; the assembly groove is annular and recessed into the outer peripheral wall of the column body; The assembly groove is coaxially arranged with the column; characterized in that... The processing devices at both ends of the column material include: The support portion has a positioning groove with a V-shaped cross-section; A pressing part is used to drive the column to move closer to the positioning groove until the outer peripheral wall of the column abuts against the two side walls of the positioning groove and the pressing part, respectively. The axial limiting part includes two first abutting surfaces and two second abutting surfaces; the two first abutting surfaces are arranged opposite each other along a first direction; the two second abutting surfaces are arranged opposite each other along a second direction; the first direction and the second direction intersect. An elastic driving part is connected to the axial limiting part; in a direction away from the elastic driving part, the distance between the two first abutting surfaces gradually decreases, and the distance between the two second abutting surfaces gradually decreases; in the same reference section, the distance between the two first abutting surfaces is greater than the distance between the two second abutting surfaces; the first direction and the second direction are respectively parallel to either of the reference sections; Two processing sections are used to process the two end faces of the column material; The axial limiting part has a first mounting position and a second mounting position. In the first mounting position, the first direction is parallel to the extension direction of the positioning groove, so that the elastic driving part can drive the two first abutting surfaces to contact and abut against the two side walls of the assembly groove respectively. In the second mounting position, the second direction is parallel to the extension direction of the positioning groove, so that the elastic driving part can drive the two second abutting surfaces to contact and abut against the two side walls of the assembly groove respectively.

2. The device for processing both ends of a column material according to claim 1, characterized in that, The first direction is perpendicular to the second direction.

3. The device for processing both ends of a column material according to claim 1, characterized in that, In all the reference sections, the minimum distance between the two first abutting surfaces is a1, the maximum distance between the two first abutting surfaces is a2, the minimum distance between the two second abutting surfaces is b1, and the maximum distance between the two second abutting surfaces is b2; a1 is less than b2; a1 is greater than b1.

4. The device for processing both ends of a column material according to claim 3, characterized in that, The range from a1 to b2 accounts for a first proportion of the range from a1 to a2; the range from a1 to b2 accounts for a second proportion of the range from b1 to b2; the first proportion is greater than the second proportion.

5. The device for processing both ends of a column material according to claim 4, characterized in that, a2=b2.

6. A method for processing both ends of a column, applied to the column end processing apparatus according to any one of claims 1-5, characterized in that, The processing methods for both ends of the column material include: Obtain the width dimensions of the assembly slots for all the column materials to be processed; The specifications of the column material are classified; wherein the specifications include a first specification range and a second specification range; the initial spacing range of the two first contact surfaces when the number of grinding cycles is 0 covers the first specification range; the initial spacing range of the two second contact surfaces when the number of grinding cycles is 0 covers the second specification range; the minimum value of the first specification range is greater than the maximum value of the second specification range; The first contact surface abuts against the assembly groove, and the first specification column material with the width dimension of the assembly groove within the first specification range is processed sequentially; When the service life of the first contact surface reaches the life threshold, the first contact surface is ground to eliminate the indentation on the first contact surface and the service life of the first contact surface is reset to 0. When the usage time of the first abutting surface is reset to 0, the operation mode of using the first abutting surface to abut the assembly groove is returned to be executed, and the first specification column material with the width dimension of the assembly groove within the first specification range is processed sequentially until the first specification column material is processed. After the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. The second specification column material with the width of the assembly groove within the second specification range is processed in sequence until the service life of the first abutment surface and the second abutment surface both reach the service life threshold. At the same time, the first abutment surface and the second abutment surface are ground to eliminate indentations.

7. The method for processing both ends of a column material according to claim 6, characterized in that, The step of grinding the first abutment surface when its service life reaches a lifespan threshold to eliminate indentations and reset its service life to 0 includes: When the service life of the first contact surface reaches the lifespan threshold, it is determined whether the initial spacing range of the second contact surface covers the first specification range. Since the initial spacing range of the second abutment surface does not cover the first specification, the first abutment surface is ground to eliminate the indentation on the first abutment surface and reset the service life of the first abutment surface to 0. Based on the initial spacing range of the second abutment surface covering the first specification, the first specification column material is processed sequentially by using the working method of the second abutment surface abutting the assembly groove; When the service life of the second contact surface reaches the lifespan threshold, the first contact surface and the second contact surface are simultaneously ground to eliminate the indentations on the first contact surface and the second contact surface, and the service life of the first contact surface and the second contact surface is reset to 0.

8. A method for processing both ends of a column material according to claim 6, characterized in that, The specification range also includes a third specification range, the initial spacing range of the two first contact surfaces when the number of grinding cycles is 0 covers the third specification range; the initial spacing range of the two second contact surfaces when the number of grinding cycles is 0 covers the third specification range; the maximum value of the third specification range is the minimum value of the first specification range; The minimum value of the third specification range is the maximum value of the second specification range; After the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. Second specification columns with a width within the second specification range are processed sequentially until the service life of both the first and second abutment surfaces reaches the lifespan threshold. Simultaneously, the first and second abutment surfaces are ground to eliminate indentations. This includes: After the first specification column material is processed, the first contact surface abuts against the assembly groove, and the column material of the third specification within the third specification range with the width dimension of the assembly groove is processed in sequence. When the service life of the first contact surface reaches the lifespan threshold, the first contact surface is ground to eliminate the indentations on the first contact surface and reset the service life of the first contact surface to 0. Once the first abutment surface has been ground, determine whether the axial limiting portion meets the first condition; the first condition includes that the minimum distance between the first abutment surfaces is equal to the minimum distance between the second abutment surfaces. If the axial limiting part does not meet the first condition, return to the operation of the first specification column material after the first specification column material is processed, and use the first abutting surface to abut the assembly groove to process the third specification column material with the width dimension of the assembly groove in the third specification range in sequence. After the third specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. The second specification column material with the width of the assembly groove within the second specification range is processed in sequence until the service life of the first abutment surface and the second abutment surface both reach the service life threshold. At the same time, the first abutment surface and the second abutment surface are ground to eliminate indentations.

9. A method for processing both ends of a column material according to claim 8, characterized in that, After the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. Second specification columns with a width within the second specification range are processed sequentially until the service life of both the first and second abutment surfaces reaches the lifespan threshold. Simultaneously, the first and second abutment surfaces are ground to eliminate indentations. The process also includes: If the currently used axial limiting part meets the first condition, replace it with a new axial limiting part, and return to the operation mode of using the first abutting surface to abut the assembly groove after the first specification column material is processed, and process the third specification column material with the width dimension of the assembly groove in the third specification range in sequence.

10. A method for processing both ends of a column material according to claim 8, characterized in that, After the first specification column material is processed, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove. Second specification columns with a width within the second specification range are processed sequentially until the service life of both the first and second abutment surfaces reaches the lifespan threshold. Simultaneously, the first and second abutment surfaces are ground to eliminate indentations. The process also includes: If all axial limiting parts meet the first condition, and the remaining number of the third specification column materials is greater than 0, the second abutment surface and the first abutment surface are alternately used to abut the assembly groove to process the third specification column materials in sequence until the service life of the first abutment surface and the second abutment surface both reach the service life threshold. At the same time, the first abutment surface and the second abutment surface are ground to eliminate indentations.

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