A punching fixture for machining the housing of a spin-on oil filter

Abstract

This utility model relates to a punching fixture for machining the housing of a spin-on oil filter. It includes a main body housing a rotary drive assembly. A rotary feed plate, connected to the rotary drive assembly, is mounted on the top surface of the main body. Several support seats, arranged circumferentially at intervals, are embedded in the rotary feed plate to adaptably clamp and position the filter housing. A mounting frame, forming a suspended mounting plane above the rotary feed plate, is also supported on the main body. On the bottom surface of the suspended mounting plate of the mounting frame, a punching assembly for forming the end faces of the filter housing mounted on the support seats, and a grinding assembly for deburring the punched end faces, are arranged in a manner co-located with adjacent support seats and suspended above them. This utility model improves the efficiency of batch processing while providing adjustable, adaptable support and positioning.

Description

Technical Field

[0001] This utility model relates to the technical field of filter housing punching equipment, and in particular to a punching fixture for processing spin-on oil filter housings. Background Technology

[0002] Filters are categorized by their filtration function into oil filters, fuel filters, air filters, and cabin air filters. Engines typically have three filters: air, oil, and fuel, commonly referred to as the "three filters." Adding the cabin air filter, this is commonly known as the "four filters." These filters are responsible for filtering the media in the lubrication system, combustion system, engine intake system, and passenger air circulation system, respectively. The oil filter, also known as an oil strainer, removes impurities such as dust, metal particles, carbon deposits, and soot particles from the engine oil, ensuring engine stability and durability.

[0003] During the manufacturing process of oil filter housings, opening holes is required on the end faces of the housing. Therefore, punching equipment is typically used for hole forming. However, existing punching equipment usually lacks an adjustable limiting structure, making it impossible to provide stable support for filter housings of different heights. This results in the limiting support structure failing to provide the internal support that matches the end contour of the frustum top of the filter housing, easily leading to deformation of the top surface of the filter housing during the downward punching process. Furthermore, after punching and hole forming, the filter housing may be pressed tightly against the fixed-shape supporting limiting structure, making disassembly difficult and reducing ease of assembly and disassembly. In addition, existing punching equipment usually only provides a single station, requiring alternating disassembly and assembly clamping operations with punching work, thus extending the total processing time for batch processing and reducing overall processing efficiency. Moreover, the punched filter housings require secondary processing on grinding equipment to remove burrs from the punched edges, resulting in low overall processing continuity, high manual workload, and high labor intensity, which is not conducive to efficient batch processing. Utility Model Content

[0004] The purpose of this invention is to provide a die-cutting fixture for machining spin-on oil filter housings. This fixture can provide adjustable and adaptable support and limiting while also enabling retractable internal support for centered positioning, thus improving the ease of assembly and disassembly after die-cutting. It also separates the die-cutting station, grinding station, and disassembly / clamping station to improve the efficiency of batch processing. This invention solves the problems of existing die-cutting equipment with fixed support and limiting structures that cannot be adapted to limiting filter housings of various heights, and the filter housing being easily pressed against such support and limiting structures during die-cutting, leading to increased assembly and disassembly difficulties. Furthermore, existing die-cutting equipment only provides a single fixed support and limiting structure, resulting in the need for alternating die-cutting and disassembly / clamping operations, leading to a long overall processing cycle and hindering efficient batch processing.

[0005] The technical solution adopted by this utility model is as follows: a punching fixture for processing the housing of a spin-on oil filter includes a main body housing a rotary drive assembly, a rotary feed plate connected to the rotary drive assembly is mounted on the top surface of the main body housing, and a plurality of support seats that can adaptably clamp and position the filter housing and are arranged circumferentially at intervals are embedded in the plate of the rotary feed plate; a mounting frame that can form a suspended mounting plane above the rotary feed plate is also supported on the main body housing, wherein, on the bottom surface of the suspended mounting plate of the mounting frame, a punching assembly that can perform end face forming processing on the filter housing fitted on the support seat and a grinding assembly that deburrs the punched end face are arranged in a manner that is distributed in the same manner as two adjacent support seats and suspended above the support seats.

[0006] According to a preferred embodiment, the insert columns of the support base are fixedly inserted into the rotating feed tray in a circumferentially spaced manner. A centering limiting plate that can extend radially outward along its cross-sectional surface is inserted into the side of the insert column in a rotationally symmetrical manner. The top of the insert column is also provided with a frustum ring that can be adapted to at least a portion of the end cavity contour of the filter housing. A positioning ring plate located below the centering limiting plate and capable of being stacked on the tray of the rotating feed tray is also connected to the insert column.

[0007] According to a preferred embodiment, a vertical groove cavity is provided on the side of the insert column to accommodate the centering limiting plate, and a sliding groove is provided on two parallel groove sidewalls of the vertical groove cavity, which penetrates the sidewall of the insert column and communicates with the vertical groove cavity. An end cap that can seal the end opening of the sliding groove is embedded on the sidewall surface of the insert column.

[0008] According to a preferred embodiment, the centering limiting plate has symmetrically arranged limiting sliders on both sides, and the surface of the limiting sliders is connected to a limiting spring.

[0009] According to a preferred embodiment, a vertical through hole is provided on the insert cylinder for the punching waste to fall, and the axial upper section of the vertical through hole is constructed by lateral expansion to form an internal threaded slot that can be adapted to the external threaded connector of the frustum ring; a support plate can also be threadedly fitted onto the insert cylinder in a lifting manner.

[0010] According to a preferred embodiment, the punching pressure column of the punching assembly is connected to the bottom surface of the suspended mounting plate, a first mounting plate is connected to the lower axial end of the punching pressure column, an internal threaded connecting seat is centrally mounted on the bottom surface of the first mounting plate, and a punching head is detachably connected to the lower axial end of the internal threaded connecting seat.

[0011] According to a preferred embodiment, a liftable threaded lifting rod is movably fitted on the suspended mounting plate in a circumferentially spaced manner, and a positioning spring located below the suspended mounting plate and a limiting nut located above the suspended mounting plate are fitted on the threaded lifting rod; a conforming shell is also provided at the lower axial end of the threaded lifting rod to fit and limit the blanking position of the filter housing; a correction shell is also connected to the lower edge of the conforming shell to correct the offset of the blanking position of the filter housing.

[0012] According to a preferred embodiment, the lifting rod of the grinding assembly is connected to the bottom surface of the suspended mounting plate, and a second mounting plate is connected to the lower axial end of the lifting rod by welding or other means; a grinding motor centrally arranged and a contour limiting plate surrounding the grinding motor are connected to the bottom surface of the second mounting plate; the output shaft of the grinding motor is coaxially connected to the connecting sleeve through a transmission connecting column, and a grinding head is connected to the lower axial end of the connecting sleeve.

[0013] The beneficial effects of this utility model are:

[0014] The rotary feeder of this application can be used to arrange three spaced support seats, thereby separating the disassembly and clamping station, the blanking station, and the grinding station. This allows disassembly and clamping operations to be performed simultaneously with blanking operations at different stations, shortening the total time consumption for mass production and effectively improving the overall efficiency of mass production. Furthermore, the grinding structure is integrated, enabling the orderly completion of blanking and grinding processes in a single clamping operation, reducing the cumbersome and labor-intensive process of multiple disassembly and clamping operations required by existing single-station processing equipment. This makes it suitable for efficient continuous processing of batch workpieces. The support seats of this application have adjustable and replaceable limiting mechanisms to effectively adapt to workpieces of different sizes within the same series and various types of workpieces from different series, greatly expanding the applicability. The detachable fixture structure effectively reduces the cost of fixture adaptation and replacement. Both the blanking and grinding components of this application are equipped with station calibration and limiting structures, thereby improving processing accuracy and yield, and ensuring the quality of batch processing.

[0015] The multiple circumferentially spaced centering plates with approximately equal elastic limiting force provided in this application can effectively abut against the inner wall of the filter housing, allowing the filter housing to be installed on the insert column in a coaxially aligned manner. This ensures the centering accuracy of the filter housing during clamping and guarantees the accuracy of the punching process. The centering plates in this application prevent the filter housing from being pressed tightly against the clamping structure during stamping, thus simplifying the disassembly of the processed filter housing and improving overall ease of assembly and disassembly. The support plate provided in this application can be height-adjusted to provide bottom support for filter housings of different heights, ensuring stability and adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred die-cutting fixture for machining the housing of a spin-on oil filter proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a preferred die-cutting fixture for machining a spin-on oil filter housing proposed in this utility model during the die-cutting process.

[0018] Figure 3 This is an enlarged structural schematic diagram of the support base of a preferred die-cutting fixture for machining the housing of a spin-on oil filter proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the transverse cross section of the support base of a preferred die-cutting fixture for machining the housing of a spin-on oil filter proposed in this utility model.

[0020] Figure 5 This is a partial lateral planar schematic diagram of a preferred spin-on oil filter housing processing punching fixture inserting a centering limiting plate onto an insert column. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are for the purpose of helping to understand this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and do not have any sequential or technical meaning.

[0023] The following is a detailed explanation with reference to the accompanying drawings.

[0024] Example 1

[0025] This application provides a punching fixture for machining the housing of a spin-on oil filter, which includes a main body 1, a rotary drive assembly 2, a rotary feed tray 3, a support base 4, a mounting bracket 5, a punching assembly 6, and a grinding assembly 7.

[0026] according to Figure 1-5 In one specific embodiment shown, a rotary drive assembly 2 is provided within a chassis body 1, which provides a mounting plane and accommodating space. A rotary feed tray 3, which is pulsatorically connected to the rotary drive assembly 2, is mounted on the top surface of the chassis body 1. Several support seats 4, which are circumferentially spaced and capable of adaptively clamping and positioning the filter housing, are embedded in the tray 3. A mounting frame 5, which forms a suspended mounting plane above the rotary feed tray 3, is also supported on the chassis body 1. On the bottom surface of the suspended mounting plate 52 of the mounting frame 5, arranged in a manner that is co-located with two adjacent support seats 4 and suspended above the support seats 4, a punching assembly 6 is provided for forming the end face of the filter housing fitted on the support seats 4, and a grinding assembly 7 is provided for deburring the punched end face. The rotary feeder 3 of this application can be used to arrange three spaced support seats 4, thereby separating the disassembly and clamping station, the blanking station, and the grinding station. This allows the disassembly and clamping operations to be performed simultaneously with the blanking operations at different stations, shortening the total time consumption for mass production and effectively improving the overall efficiency of mass production. Furthermore, the grinding structure is integrated, enabling the orderly completion of blanking and grinding processes in a single clamping operation, reducing the cumbersomeness and labor intensity of multiple disassembly and clamping operations required by existing single-station processing equipment. This is suitable for efficient continuous processing of batch workpieces. The support seat 4 of this application has an adjustable and replaceable limiting mechanism to effectively adapt to workpieces of different sizes within the same series and various types of workpieces from different series, greatly expanding its applicability. The detachable fixture structure effectively reduces the cost of fixture adaptation and replacement. Both the blanking component 6 and the grinding component 7 of this application are equipped with station calibration and limiting structures, thereby improving processing accuracy and yield, and ensuring the quality of batch processing.

[0027] Preferably, a support platform 11 is provided on the top of the main body 1 of the chassis. More preferably, the top of the support platform 11 is rotatably coaxially connected to the rotating feed plate 3 via a bearing disc 12. Preferably, a waste bin 13 for receiving blanking waste is also disposed inside the main body 1, directly below the blanking assembly 6, through its top surface. Preferably, the waste bin 13 is positioned by lifting blocks. Specifically, there are at least two layers of lifting blocks, and one layer of lifting blocks has a constricted side edge to facilitate the placement of the lifting block insert. Preferably, an internal mounting platform 14 capable of supporting the rotary motor 21 is disposed inside the main body 1 by welding or other fixing methods. Preferably, a perforated heat dissipation plate 15 that facilitates internal and external communication and heat dissipation is also embedded on the side of the main body 1 near the rotary motor 21. More preferably, an exhaust fan can be locally disposed inside the perforated heat dissipation plate 15 to accelerate airflow and displacement. Preferably, the top surface of the main body 1 is further supported circumferentially by universal auxiliary support members that help limit the working height of the rotating feed tray 3 and provide auxiliary support for the rotating feed tray 3. Specifically, the universal auxiliary support members are in rolling contact with the rotating feed tray 3, so that the universal auxiliary support members can provide effective support while ensuring the rotatability of the rotating feed tray 3. Preferably, the universal auxiliary support members include support columns, bearing sleeves, connecting plates, U-shaped mounting seats, and rollers rotatably inserted into the U-shaped mounting seats via a rotating shaft, so that the rollers can make rolling contact with the bottom surface of the rotating feed tray 3. Specifically, the universal auxiliary support members can directly refer to the structure of universal wheels with long support rods.

[0028] Preferably, the rotary drive assembly 2 includes a rotary motor 21, a transmission gear 22, a driven gear 23, a drive shaft 24, and a mounting base 25. Preferably, the rotary motor 21 is detachably bolted to the built-in mounting platform 14 via the mounting base 25, which has connecting bolts and is welded to it as an integral structure. Preferably, the transmission gear 22 is mounted on the output shaft of the rotary motor 21. Preferably, the drive shaft 24 is connected to the bottom surface of the rotary feed tray 3 in a manner that enables it to drive the rotary feed tray 3 to rotate around its axis. More preferably, the driven gear 23, which meshes with the transmission gear 22, is mounted on the shaft of the drive shaft 24 located inside the housing body 1. Preferably, the upper axial end of the drive shaft 24, passing through the housing body 1, is detachably and securely connected to the rotary feed tray 3 by interfacing with an insert sleeve on the bottom surface of the rotary feed tray 3 and being positioned using side limiting screws. Preferably, the rotary motor 21 is a stepper servo motor capable of adjusting the stepping cycle to produce periodic intermittent deflection motion, which can position the deflection amount with high precision. Specifically, the rotary motor 21 adopts an MTN-750W servo motor with a repeatability of ≤5 arcseconds (approximately 0.0014°), a load of ≥200kg, and 360° arbitrary angle positioning, making it suitable for frequent start-stop scenarios.

[0029] Preferably, the insert columns 41 of the support base 4 are fixedly inserted into the rotating feed tray 3 in a circumferentially spaced manner. Preferably, a centering limiting plate 42 that extends radially outward along its cross-sectional surface is inserted into the side of the insert column 41 in a rotationally symmetrical manner. More preferably, the top of the insert column 41 is also provided with a frustum ring 43 that can be adapted to at least part of the end cavity contour of the filter housing. Preferably, a positioning ring plate 44 located below the centering limiting plate 42 and capable of being stacked on the tray of the rotating feed tray 3 is integrally connected to the insert column 41 by welding. Preferably, the insertion depth and stability of the insert column 41 on the rotating feed tray 3 are ensured by the positioning ring plate 44 and the countersunk screws inserted into the positioning ring plate 44. The multiple circumferentially spaced centering plates 42 with approximately equal elastic limiting force provided in this application can effectively elastically abut against the inner wall of the filter housing, allowing the filter housing to be installed on the insert column 41 in a coaxially aligned manner. This ensures the centering of the filter housing during clamping and guarantees the accuracy of the punching and forming process. The frustum-shaped ring 43 provided in this application can be replaced as needed to adapt to different series of filter housings. This application primarily concerns the main housing of the J10 series spin-on oil filter products manufactured by the applicant. The housing height of this series ranges from 280-320mm, and its outer diameter is 105-115mm. The J10 series filter housings generally have a truncated cone shape, with consistent inclination of the top profile and size of the circular end face of the central punch. The cylindrical portion of the housing differs in height and outer diameter, while the truncated cone portion only differs in height and the size of the large circular bottom surface. Therefore, when processing housings of different sizes within the same series, this application can effectively support the punched end face and partially inclined shell wall of the housing without replacing the truncated cone ring 43. The J10 series spin-on oil filters processed by this application are mainly suitable for engines such as the Yuchai 6105.

[0030] Preferably, a vertical groove 411 for accommodating a centering limiting plate 42 is provided on the side of the insert cylinder 41. More preferably, a sliding groove 412 penetrating the side wall of the insert cylinder 41 and communicating with the vertical groove 411 is provided on the two parallel side walls of the vertical groove 411. Preferably, an end cap 413 that can seal the end opening of the sliding groove 412 is fitted on the side wall of the insert cylinder 41 by means of a countersunk screw. Preferably, a vertical through hole 414 for punching waste to fall into is provided on the insert cylinder 41. More preferably, the axial upper section of the vertical through hole 414 is constructed by lateral expansion to form an internal threaded groove 415 that can be adapted to the external threaded connector 431 of the frustum ring 43. Preferably, a support plate 416 is threadedly fitted onto the insert column 41, providing adjustable support for the filter housing to accommodate filter housings of different heights. Preferably, the support plate 416 is located above the positioning ring plate 44. The vertical through hole 414 provided in this application allows for the directional conveying of punching waste, preventing its accumulation on the worktable and avoiding the need for frequent cleaning by operators. The support plate 416 provided in this application can be height-adjusted as needed to provide bottom support for filter housings of different heights, ensuring the stability and adaptability of the support.

[0031] Preferably, limiting sliders 421 are symmetrically arranged on both sides of the trapezoidal centering limiting plate 42. More preferably, a limiting spring 422 is connected to the surface of the limiting slider 421, which is parallel to the surface of the centering limiting plate 42 and defines the initial working position of the limiting slider 421 and the centering limiting plate 422. The limiting slider 421 and the limiting spring 422 provided in this application can cooperate to provide elastic thrust to the centering limiting plate 42, so that the centering limiting plate 42 can effectively provide multi-region equivalent internal support for filter housings with different outer diameters, thereby achieving the centering accuracy of the filter housing clamping.

[0032] Preferably, an externally threaded tube 431 is integrally formed or welded at the lower axial end of the frustum ring 43. The frustum ring 43 can be configured with a main structure having various inclined annular surfaces as needed, so that different frustum rings 43 can provide highly adaptable top support for different series of filter housings, thereby ensuring the stability of the punching area support and reducing the possibility of deformation during the punching process.

[0033] Preferably, the mounting frame 5 includes multiple support columns 51 supported on the main body of the chassis 1 and a suspended mounting plate 52 connected to the axial upper end of the support columns 51 and suspended above the rotating feed tray 3. Preferably, the upper and lower ends of the support columns 51 are detachably and stably connected to the main body of the chassis 1 by flanges with bolts and fixed to them by welding or other means, and the suspended mounting plate 52.

[0034] Preferably, the blanking assembly 6 includes a pressure hydraulic column 61, a first mounting plate 62, an internal threaded connecting seat 63, a blanking head 64, a conforming cylinder shell 65, a correcting cylinder shell 66, a threaded lifting rod 67, a high-elasticity positioning spring 68, and a limiting nut 69. Preferably, the blanking pressure column 61 of the blanking assembly 6 is connected to the bottom surface of the suspended mounting plate 52. Preferably, the blanking pressure column 61 can be a KRp-300 type pneumatic blanking column, etc., which can be manually set by the operator according to the needs. It can provide 800kg output force, the cylinder stroke is adjustable, and it is suitable for pressing, blanking, and cutting processes. More preferably, the first mounting plate 62 is connected to the lower axial end of the blanking pressure column 61 by welding or other means. Preferably, the internal threaded connecting seat 63 is centrally mounted on the bottom surface of the first mounting plate 62 by welding or other means. More preferably, the blanking head 64 is detachably connected to the lower axial end of the internal threaded connecting seat 63 by threaded fitting. Preferably, a retractable threaded lifting rod 67 is movably fitted onto the suspended mounting plate 62 in a circumferentially spaced manner. Preferably, a positioning spring 68 located below the suspended mounting plate 62 and a limiting nut 69 located above the suspended mounting plate 62 are fitted onto the threaded lifting rod 67. Preferably, a conforming shell 65 is provided at the lower axial end of the threaded lifting rod 67 to limit the fitting of the punching station of the filter housing, thereby improving the coaxial accuracy and punching stability between the punching head 64 and the filter housing. More preferably, a correction shell 66 is connected to the lower edge of the conforming shell 65 by a seamless and highly stable connection method such as welding, which can correct the offset of the punching station of the filter housing, so that the descending conforming shell 65 can be accurately fitted onto the filter housing. Preferably, the positioning spring 68 adopts a highly elastic and strong spring body to ensure that it provides a sufficiently large downward pressure force when the spring body is compressed and presses against the conforming shell 65. Preferably, the profiled cylindrical shell 65 has an inner cavity profile that matches the outer contour of the upper section of the filter housing, thereby enabling precise fitting and ensuring the coaxial accuracy between the punch head 64 and the filter housing. More preferably, the profiled cylindrical shell 65, the threaded lifting rod 67, and the correcting cylindrical shell 66 are integrally connected structural components, allowing for replacement as needed. This enables the equipment to be used for limiting filter housings with different end profiles, reducing the cost of parts replacement during the processing of different filter housings. Preferably, the correcting cylindrical shell 66 has a frustum-shaped annular cavity profile, which facilitates the correction of the relative position of the filter housing during continuous descent, achieving coaxial insertion and mating.

[0035] Preferably, the grinding assembly 7 includes a lifting rod 71, a second mounting plate 72, a grinding motor 73, a transmission connecting column 74, a connecting sleeve 75, a grinding head 76, and a contour limiting plate 77. Preferably, the lifting rod 71 of the grinding assembly 7 is connected to the bottom surface of the suspended mounting plate 52 via a flange with connecting screws. Preferably, the lifting rod 71 is an HOP280 type electro-hydraulic lifting column with adjustable reciprocating lifting stroke and high stability for precise positioning of the telescopic length at different work positions. Preferably, the second mounting plate 72 is connected to the lower axial end of the lifting rod 71 by welding or other means. Preferably, the grinding motor 73 is centrally located on the bottom surface of the second mounting plate 72, and the contour limiting plate 77 is arranged circumferentially around the grinding motor 73. Preferably, the grinding motor 73 can be a high-speed grinding motor of the ODE series, with an adjustable speed of 1000-40000 rpm, a torque of 4.3 cN·m, and a clamping range of 1-5mm. It can adapt to deburring narrow areas such as irregular holes and gear clearances, and supports various grinding heads for grinding metal punched hole surfaces. More preferably, the output shaft of the grinding motor 73 is coaxially connected to the connecting sleeve 75 via a transmission connecting post 74, and the lower axial end of the connecting sleeve 75 is connected to a grinding head 76 that can rotate around its axis via integral forming, threaded insertion, or snap-fit ​​assembly. Preferably, the polygonal connecting sleeve 75 is fitted onto the polygonal transmission connecting post 74, and the stability of the connection is ensured by a locking screw penetrating its side wall. Preferably, the contour plate 77 has a side profile that matches the outer wall surface of the filter housing, so that during the synchronous descent with the grinding head 76, it can limit the coaxial posture of the filter housing and the grinding head 76, thereby correcting the grinding position of the filter housing and limiting the lateral movement of the filter housing, preventing relative shaking of the filter housing during the grinding process and affecting the grinding effect.

[0036] Preferably, the grinding head 76 includes a frustum, a cylindrical part and a conical part coaxially connected, and the three parts are integrally connected. Thus, the frustum can grind the punched end face, the cylindrical part can grind the inner wall of the cavity, and the conical part provides an inclined end to facilitate the precise insertion of the cylindrical part into the cavity.

[0037] Preferably, the electrical components involved in this application, such as the rotary motor 21, the pressurized hydraulic column 61, the lifting rod 71, and the grinding motor 73, are all electrically connected to the controller and the power supply. The control method of this application is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is only used to protect the mechanical device and its mechanical structural features. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0038] For surface connections between components not explicitly specified in this application, conventional bolt connections, snap-fit ​​connections, or fixed connections such as welding can be used. As these are conventional connection methods, this application will not elaborate further on this part. Specifically, the connecting ends of the assembled components all form flange structures, and the two flange structures are connected by bolts, gaskets, or other structures.

[0039] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A punching fixture for machining the housing of a spin-on oil filter, comprising a main body (1) housing a rotary drive assembly (2), characterized in that, A rotary feeder (3) connected to the rotary drive assembly (2) is installed on the top surface of the main body (1) of the chassis, and a number of support seats (4) that can adaptably clamp and position the filter housing and are arranged circumferentially are embedded on the disc body of the rotary feeder (3). The main body (1) of the chassis is also supported by a mounting frame (5) that can form a suspended mounting plane above the rotating feed plate (3). On the bottom surface of the suspended mounting plate (52) of the mounting frame (5), a punching assembly (6) is provided to perform end face forming of the filter housing fitted on the support (4) and a grinding assembly (7) to deburr the punched end face.

2. The punching fixture for machining the spin-on oil filter housing as described in claim 1, characterized in that, The insert columns (41) of the support base (4) are fixedly inserted into the rotating feed plate (3) in a circumferentially spaced manner. A centering limiting plate (42) that extends radially outward along its cross-sectional circular surface is inserted into the side of the insert column (41) in a rotationally symmetrical manner. The top of the insert column (41) is also provided with a frustum ring (43) that can be adapted to at least part of the end cavity profile of the filter housing. A positioning ring plate (44) is also connected to the insert column (41) and is located below the centering limiting plate (42) and can be stacked on the disc body of the rotating feed plate (3).

3. The punching fixture for machining the spin-on oil filter housing as described in claim 2, characterized in that, A vertical groove (411) is provided on the side of the insert column (41) to accommodate the centering limiting plate (42), and a sliding groove (412) is provided on the two parallel groove sidewalls of the vertical groove (411) to penetrate the sidewall of the insert column (41) and communicate with the vertical groove (411). An end cap (413) capable of sealing the end opening of the slide (412) is embedded on the side wall of the insert column (41).

4. The punching fixture for machining the spin-on oil filter housing as described in claim 3, characterized in that, The centering limiting plate (42) has symmetrically arranged limiting sliders (421) on both sides of the plate body, and the surface of the limiting sliders (421) is connected to limiting springs (422).

5. The punching fixture for machining the spin-on oil filter housing as described in claim 4, characterized in that, A vertical through hole (414) for punching waste to fall is provided on the insert cylinder (41), and the upper axial section of the vertical through hole (414) is constructed by lateral expansion to form an internal threaded slot (415) that can be adapted to the external threaded connector (431) of the frustum ring (43). A support plate (416) can also be threaded onto the insert column (41) in a lifting manner.

6. The punching fixture for machining the spin-on oil filter housing as described in claim 5, characterized in that, The punching pressure column (61) of the punching assembly (6) is connected to the bottom surface of the suspended mounting plate (52). A first mounting plate (62) is connected to the lower axial end of the punching pressure column (61). An internal threaded connecting seat (63) is installed in the center on the bottom surface of the first mounting plate (62). A punching head (64) is detachably connected to the lower axial end of the internal threaded connecting seat (63).

7. The punching fixture for machining the spin-on oil filter housing as described in claim 6, characterized in that, On the first mounting plate (62), a retractable threaded lifting rod (67) is movably mounted in a circumferentially spaced manner, and a positioning spring (68) located below the first mounting plate (62) and a limiting nut (69) located above the first mounting plate (62) are mounted on the threaded lifting rod (67). At the lower axial end of the threaded lifting rod (67), there is also a conformal cylindrical shell (65) that can fit and limit the punching station of the filter housing. A correction shell (66) capable of offset correction of the punching station of the filter housing is also connected to the lower edge of the conformal shell (65).

8. The punching fixture for machining the spin-on oil filter housing as described in claim 7, characterized in that, The lifting rod (71) of the grinding assembly (7) is connected to the bottom surface of the suspended mounting plate (52), and a second mounting plate (72) is connected to the lower axial end of the lifting rod (71) by welding. A grinding motor (73) arranged in the center and a contour limiting plate (77) surrounding the grinding motor (73) are connected to the bottom surface of the second mounting plate (72). The output shaft of the grinding motor (73) is coaxially connected to the connecting sleeve (75) via the transmission connecting column (74), and the lower axial end of the connecting sleeve (75) is connected to the grinding head (76).

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