Pressing device for filter element end cover of oil filter

Abstract

The invention relates to the technical field of oil filters, in particular to a press-fit device for a filter element end cover of an oil filter. Comprising a supporting table and a control table, the control table is installed on the supporting table, a circulating mechanism is arranged on the supporting table, movable seats are connected to the circulating mechanism at intervals, and the circulating mechanism is used for driving the movable seats to do circulating motion. The circulating mechanism is arranged to drive the movable seat and the screw to circularly move, the spiral groove and the circular ring groove are formed in the movable seat, the gear ring, the sliding block, the ball and the extrusion wheel are matched, the gear ring is driven by the rotating mechanism to rotate, and the ball rolls along the spiral groove and drives the extrusion wheel to gradually approach a workpiece; according to the automatic press-fit device, automatic press-fit of an end cover and a filter element shell is achieved, continuous operation of feeding, press-fit and discharging of a workpiece is completed under the condition that conveying of the workpiece is not stopped, the limitation that a traditional press-fit device can only conduct machining after the workpiece is completely static is broken through, and the overall operation efficiency of a production line is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of oil filter technology, and more particularly to an oil filter element end cap pressing device. Background Technology

[0002] As a key component of the engine lubrication system, the oil filter's main function is to filter impurities such as metal particles, carbon deposits, and gum from the engine oil to ensure engine cleanliness and extend engine life. In the manufacturing process of the oil filter, the pressing process of the filter element end cap is the core link to ensure the product's sealing performance and structural strength. This process applies a certain pressure to firmly press the end cap onto the end of the filter element housing, forming a reliable sealing connection between the end cap and the housing. This ensures that no leakage occurs in the high-pressure oil circuit environment and can withstand certain mechanical vibrations and thermal stresses.

[0003] Currently, mainstream oil filter production has widely adopted automated production lines to achieve efficient, stable, and consistent manufacturing. Automated production lines typically include dedicated pressing stations and pressing devices. During operation, a conveying mechanism transports the filter workpieces to the pressing station. The system uses sensors or mechanical positioning devices to precisely position the workpieces. Subsequently, the conveying mechanism must completely stop, and the pressing device starts, aligning with the workpiece and performing the pressing action. Only after the pressing process is complete can the conveying mechanism resume operation, transporting the pressed workpiece to the next process while making room for the next workpiece. However, this intermittent "convey-stop-press-reconvey" working mode has significant technical bottlenecks. Because each workpiece must be completely stationary at the pressing station before the pressing operation can begin, the workpiece's downtime is directly added to the entire production cycle. As production scale expands and efficiency requirements increase, this non-value-adding time accumulation effect caused by station downtime becomes increasingly apparent, severely restricting the overall efficiency of the production line. Summary of the Invention

[0004] In view of this, the present invention provides an oil filter element end cap pressing device, which can solve the problem that existing automatic production lines require the pressing operation to be performed only after the workpiece conveyor has completely stopped, which causes the workpiece downtime to easily affect the overall efficiency of the production line.

[0005] The technical solution is as follows: An oil filter element end cap pressing device includes a support platform and a control panel. The control panel is mounted on the support platform, and a circulation mechanism is provided on the support platform. Movable seats are connected at intervals on the circulation mechanism. The circulation mechanism is used to drive the movable seats to perform cyclical movement. A screw is provided on the movable seat, which is used to mate with a threaded hole on the workpiece. A limiting mechanism is provided on the movable seat for limiting the workpiece. A rotating mechanism is provided on the support platform for driving the workpiece to rotate. A gear ring is rotatably mounted on the movable seat. The movable seat has a spiral groove and an annular groove, which are connected. A slider is symmetrically slidably mounted on the gear ring. A pressing wheel is rotatably mounted on the slider. The pressing wheel is used to press the end cap and filter element housing on the workpiece. A ball is rotatably mounted on the slider for rolling in the spiral groove and annular groove. A rotating mechanism is provided on the support platform for driving the gear ring to rotate. A reset mechanism is provided on the gear ring for resetting the slider.

[0006] Furthermore, the circulation mechanism includes a first motor, a toothed pulley, and a toothed flat belt. The first motor is symmetrically mounted on the support platform. The output shaft of the first motor is connected to the toothed pulley. A toothed flat belt is provided between the two toothed pulleys. The movable seat is spaced on the toothed flat belt.

[0007] Furthermore, the limiting mechanism includes a mounting frame, a limiting frame, and a torsion spring. The mounting frame is installed at intervals on the side of the movable seat, and a limiting frame for limiting the workpiece is rotatably mounted on the mounting frame. A torsion spring connects the limiting frame and the mounting frame.

[0008] Furthermore, the rotating mechanism includes a connecting frame, a second motor, and a first turntable. The connecting frame is symmetrically arranged on the support platform, the second motor is mounted on the connecting frame, and the first turntable is connected to the output shaft of the second motor. The first turntable is used to drive the workpiece to rotate.

[0009] Furthermore, the rotating mechanism includes a third motor, sprockets, chains, and toothed blocks. The third motor is mounted on the support platform, and sprockets are symmetrically arranged on the support platform. The output shaft of the third motor is connected to one of the sprockets. A chain is arranged between the two sprockets, and toothed blocks are spaced apart on the chain. The toothed blocks are used to drive the toothed ring to rotate.

[0010] Furthermore, the reset mechanism includes a spring and a second turntable. A spring connects the slider and the gear ring. The output shaft of one of the second motors is connected to the second turntable, which is used to drive the gear ring to rotate and reset.

[0011] Furthermore, it also includes a first rolling ball, which is rotatably arranged on the limiting frame at intervals. The first rolling ball is used to contact the filter element housing on the workpiece.

[0012] Furthermore, it also includes a second rolling ball, which is rotatably arranged on the movable seat at intervals, and the second rolling ball is used to contact the end cap on the workpiece.

[0013] The beneficial effects are: 1. This invention uses a circulating mechanism to drive the movable seat and screw to circulate, and opens spiral grooves and annular grooves on the movable seat. With the help of a toothed ring, slider, ball bearings and extrusion wheel, the rotating mechanism drives the toothed ring to rotate, so that the ball bearings roll along the spiral groove and drive the extrusion wheel to gradually approach the workpiece. This not only realizes the automatic pressing of the end cap and the filter element housing, but also realizes the continuous operation of loading, pressing and unloading of the workpiece without stopping the conveying. It breaks through the limitation of traditional pressing devices that can only be processed after the workpiece is completely stationary, and significantly improves the overall operating efficiency of the production line.

[0014] 2. This invention uses a screw and a threaded hole in the workpiece to achieve automatic positioning and fixing of the workpiece, and combines a rotating mechanism to drive the workpiece to rotate, so that the workpiece can automatically screw in or out of the screw during the movement, which simplifies the operation process and improves the degree of automation and the continuity of operation.

[0015] 3. The present invention sets a first rolling ball on the limiting frame and a second rolling ball on the movable seat, which respectively contact the filter element housing and the end cap, transforming traditional sliding friction into rolling friction. This significantly reduces the rotational resistance of the workpiece during the screwing-in and screwing-out process, reduces wear on the workpiece surface, and improves processing accuracy and product appearance quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the workpiece to be processed in the present invention, showing its loading state.

[0018] Figure 3 This is a three-dimensional structural diagram of the circulation mechanism of the present invention.

[0019] Figure 4 This is a structural separation diagram of the limiting mechanism of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the rotating mechanism of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the toothed ring, sprocket, and toothed block of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the rotating mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the toothed ring, slider, and spring of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the ball bearing, spiral groove, and annular groove of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the slider, extrusion wheel, and ball bearings of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the spiral groove, annular groove, and second rolling ball of the present invention.

[0027] Figure 12 This is a schematic diagram of the three-dimensional structure of the workpiece to be processed according to the present invention.

[0028] Figure 13 This is a schematic diagram of the three-dimensional structure of the workpiece after pressing according to the present invention.

[0029] In the attached diagram, the following labels are used: 1-support platform, 101-filter cartridge housing, 102-end cap, 2-control panel, 301-first motor, 302-toothed pulley, 303-toothed flat belt, 4-movable seat, 5-screw, 601-mounting bracket, 602-limiting bracket, 603-torsion spring, 701-connecting bracket, 702-second motor, 703-first turntable, 8-toothed ring, 901-spiral groove, 902-circular groove, 10-slider, 11-extrusion wheel, 12-ball bearing, 1301-third motor, 1302-sprocket, 1303-chain, 1304-tooth block, 1401-spring, 1402-second turntable, 15-first rolling ball, 16-second rolling ball. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0031] Example: A pressing device for the end cap of an oil filter element, see below. Figures 1-13As shown, it includes a support platform 1 and a control panel 2; the control panel 2 is installed in the middle of the rear top of the support platform 1; it also includes a circulation mechanism, a movable seat 4, a screw 5, a limiting mechanism, a rotating mechanism, a gear ring 8, a slider 10, a pressing wheel 11, a ball bearing 12, a rotation mechanism, and a reset mechanism; the support platform 1 is provided with a circulation mechanism, and the movable seats 4 are connected at intervals on the circulation mechanism, the circulation mechanism is used to drive the movable seats 4 to perform cyclical movement; the movable seat 4 is provided with a screw 5 in the middle of its top, the screw 5 is used to mate with the threaded hole on the workpiece. The workpiece includes an end cap 102 and a filter element housing 101. The end cap 102 is glued to the bottom of the filter element housing 101 to form the workpiece to be processed. The workpiece has a threaded hole (existing technology) for engaging with the screw 5 on the movable seat 4 for positioning. The movable seat 4 is equipped with a limiting mechanism for limiting the workpiece. The support table 1 is equipped with a rotating mechanism to drive the workpiece to rotate, so that the screw 5 is screwed into the threaded hole of the workpiece, thereby fixing the workpiece. A toothed ring 8 is rotatably mounted on the side. The top of the movable seat 4 has a spiral groove 901 and an annular groove 902. The annular groove 902 is located inside the spiral groove 901, and the inner end of the spiral groove 901 communicates with the annular groove 902. Two sliders 10 are slidably arranged inside the toothed ring 8. A pressing wheel 11 is rotatably mounted on each slider 10, used to press the end cap 102 and the filter element housing 101 on the workpiece. A ball bearing 12 is rotatably mounted at the bottom of the slider 10. The ball bearings 12 roll along the spiral groove 901. The support platform 1 is provided with a rotating mechanism for driving the toothed ring 8 to rotate, so that the toothed ring 8 drives the slider 10 to rotate, thereby causing the ball bearings 12 on the slider 10 to roll along the spiral groove 901, so that the spiral groove 901 drives the ball bearings 12 to gradually approach the workpiece, thereby driving the slider 10 and the extrusion wheel 11 to gradually approach the workpiece, so that the extrusion wheel 11 presses the end cap 102 and the filter element housing 101 on the workpiece; the toothed ring 8 is provided with a reset mechanism for resetting the slider 10.

[0032] See Figure 2 and Figure 3 As shown, the circulation mechanism includes a first motor 301, a toothed pulley 302, and a toothed flat belt 303; the first motor 301 is symmetrically installed on the upper side of the support platform 1, and the first motor 301 is electrically connected to the control panel 2; the output shafts of the two first motors 301 are each connected to a toothed pulley 302; a toothed flat belt 303 is provided between the two toothed pulleys 302, and the movable seat 4 is spaced apart on the outside of the toothed flat belt 303.

[0033] See Figure 3 and Figure 4As shown, the limiting mechanism includes a mounting bracket 601, a limiting bracket 602, and a torsion spring 603; four mounting brackets 601 are installed at intervals on the side of the movable seat 4; a limiting bracket 602 for limiting the workpiece is rotatably mounted on the mounting bracket 601, and the upper side of the limiting bracket 602 is set with an arc-shaped structure; two torsion springs 603 are connected between the lower side of the limiting bracket 602 and the mounting bracket 601.

[0034] See Figure 5 As shown, the rotating mechanism includes a connecting frame 701, a second motor 702, and a first turntable 703; the connecting frames 701 are symmetrically arranged on the top of the support platform 1; the second motors 702 are installed on the top of both connecting frames 701, and the second motors 702 are electrically connected to the control panel 2; the output shafts of the two second motors 702 are connected to the first turntable 703, and the outer side of the first turntable 703 is provided with a rubber ring. The first turntable 703 is used to drive the workpiece to rotate, and the rubber ring is used to increase the friction between the workpiece and the workpiece, and to protect the surface of the workpiece from wear of the first turntable 703.

[0035] See Figure 6 and Figure 7 As shown, the rotating mechanism includes a third motor 1301, a sprocket 1302, a chain 1303, and a toothed block 1304. The third motor 1301 is installed in the middle of the upper side of the support platform 1 and is electrically connected to the control panel 2. The sprocket 1302 is symmetrically arranged on the upper side of the support platform 1, and the output shaft of the third motor 1301 is connected to the right sprocket 1302. The chain 1303 is arranged between the two sprockets 1302. The toothed blocks 1304 are spaced apart on the outer side of the chain 1303 and are used to drive the toothed ring 8 to rotate.

[0036] See Figure 5 , Figure 8 and Figure 9 As shown, the reset mechanism includes a spring 1401 and a second turntable 1402; the spring 1401 is connected between the slider 10 and the inner side of the gear ring 8; the output shaft of the second motor 702 on the right side is connected to the second turntable 1402, the second turntable 1402 is located below the first turntable 703, and a rubber ring is provided on the outer side of the second turntable 1402. The second turntable 1402 is used to drive the gear ring 8 to rotate, and the rubber ring is used to increase the friction between the gear ring 8 and protect the surface of the gear ring 8 from wear by the second turntable 1402.

[0037] See Figure 4 As shown, it also includes a first rolling ball 15; the first rolling ball 15 is rotatably embedded in the arc-shaped structure of the limiting frame 602, and the first rolling ball 15 is used to contact the filter housing 101 on the workpiece.

[0038] See Figure 11As shown, it also includes a second rolling ball 16; the top of the movable seat 4 is rotatably embedded with the second rolling ball 16 in an annular interval, and the second rolling ball 16 is used to contact the end cap 102 on the workpiece.

[0039] In operation, the first motor 301 is started via the control panel 2, driving the toothed pulley 302 to rotate (counterclockwise when viewed from above), which in turn drives the toothed flat belt 303 to rotate (counterclockwise when viewed from above), thereby causing the movable seat 4, screw 5, and toothed ring 8 to circulate. Then, the second motor 702 is started via the control panel 2, driving the left first turntable 703 to rotate (clockwise when viewed from above), and the right second motor 702 drives the right first turntable 703 and the second turntable 1402 to rotate (counterclockwise when viewed from above). Next, the third motor 1301 is started via the control panel 2, driving the right sprocket 1302 to rotate (clockwise when viewed from above), thereby driving the left sprocket 1302 and chain 1303 to rotate (clockwise when viewed from above), which in turn drives the toothed block 1304 to circulate. The workpiece to be processed is then placed on the designated screw 5 in a cyclical motion by a robotic arm (see the image for the workpiece to be processed). Figure 12 As shown), align the threaded hole of the workpiece to be processed with the screw 5 (as shown). Figure 2 As shown), during this process, when the workpiece to be processed comes into contact with the first rolling ball 15 on the limiting frame 602, the workpiece will rotate by pressing the limiting frame 602 through the first rolling ball 15. The torsion spring 603 deforms, and the elastic force generated by the deformation of the torsion spring 603 applies pressure to the limiting frame 602, which can make the first rolling ball 15 on the limiting frame 602 closely adhere to the workpiece to be processed, thereby limiting the workpiece to be processed to prevent it from falling off the screw 5. Furthermore, by using the first rolling ball 15 to limit the workpiece to be processed, rolling friction can be generated between the first rolling ball 15 and the workpiece, compared to... The sliding friction between the limiting bracket 602 and the workpiece reduces the frictional force experienced by the workpiece during subsequent rotation. After the workpiece to be processed is limited on the screw 5, it will follow the screw 5 in a cyclical motion. When the workpiece to be processed on the screw 5 contacts the rubber ring on the left first turntable 703, the rubber ring on the first turntable 703 will drive the workpiece to be processed to rotate (counterclockwise when viewed from above) through friction, causing the workpiece to be processed to be screwed downwards along the screw 5, thereby fixing the workpiece to be processed on the screw 5 and placing the end cap 102 on the workpiece between the two extrusion rollers 11 inside the toothed ring 8 (e.g., Figure 8 and Figure 9As shown), until the end cap 102 at the bottom of the workpiece contacts the second rolling ball 16, the second rolling ball 16 restricts the workpiece from moving downwards, and the second rolling ball 16 generates rolling friction with the workpiece. Compared with the sliding friction generated between the bottom of the workpiece and the top of the movable seat 4, this makes it easier for the subsequent workpiece to be unscrewed from the screw 5, reducing the friction force on the bottom of the workpiece during subsequent rotation. Afterwards, as the workpiece to be processed follows the screw 5 in a cyclical motion, the workpiece to be processed on the screw 5 will separate from the rubber ring on the first turntable 703 on the left. When the toothed ring 8 on the movable seat 4 meshes with the toothed block 1304, the toothed block 1304 drives the toothed ring 8 to rotate (counterclockwise when viewed from above), thereby driving the slider 10, the extrusion wheel 11, and the ball 12 to rotate (counterclockwise when viewed from above). This causes the slider 10, the extrusion wheel 11, and the ball 12 to rotate around the workpiece to be processed, and the ball 12 to roll along the spiral groove 901. The ball 12 is squeezed by the spiral groove 901, which enables the spiral groove 901 to... The extrusion ball 12 gradually approaches the workpiece to be processed, thereby driving the slider 10 and the extrusion wheel 11 to gradually approach the workpiece to be processed. The spring 1401 is stretched. When the extrusion wheel 11 contacts the end cap 102 of the workpiece to be processed, the extrusion wheel 11 will extrude on the end cap 102, causing the edge of the end cap 102 to gradually bend, and causing the edge of the end cap 102 to drive the lower edge of the filter element housing 101 to bend, until the edge of the end cap 102 bends and wraps around the bent lower edge of the filter element housing 101 (e.g., ...). Figure 13 As shown), the workpiece is pressed together, and the ball 12 enters the annular groove 902 along the spiral groove 901, causing the ball 12 to rotate in the annular groove 902. This stops the ball 12, slider 10 and extrusion wheel 11 from getting too close to the workpiece, preventing the extrusion wheel 11 from getting too close and causing excessive extrusion on the surface of the workpiece. Then, as the pressed workpiece moves in a cycle with the screw 5, the toothed ring 8 on the movable seat 4 will separate from the toothed block 1304, causing the toothed ring 8, slider 10, extrusion wheel 11 and ball 12 to stop rotating. When the workpiece pressed on the screw 5 contacts the rubber ring on the first turntable 703 on the right, the workpiece is pressed down by the extrusion roller 11, preventing it from moving upwards. This prevents the first turntable 703 from rotating the workpiece through friction. When the toothed ring 8 on the movable seat 4 contacts the rubber ring on the second turntable 1402, the rubber ring on the second turntable 1402 rotates the toothed ring 8 through friction (clockwise when viewed from above), thereby driving the slider 10. The extrusion roller 11 and the ball bearing 12 rotate (clockwise when viewed from above), causing the ball bearing 12 to roll along the annular groove 902. When the ball bearing 12 aligns with the inner end of the spiral groove 901 within the annular groove 902, the spring 1401, under its elastic force, causes the slider 10 and the extrusion roller 11 to gradually move away from the pressed workpiece. This causes the extrusion roller 11 to release the pressed position of the workpiece, and the ball bearing 12 to enter the spiral groove 901 from the annular groove 902. The ball bearing 12 then rolls along the spiral groove 901. The internal rolling reset allows the ball bearing 12 to drive the slider 10 and the extrusion wheel 11 to gradually move away from the pressed workpiece and reset, causing the spring 1401 to gradually return to its original state. During this process, when the extrusion wheel 11 releases the pressed position of the workpiece, the first turntable 703 on the right side can drive the pressed workpiece to rotate (clockwise when viewed from above) through the friction of the rubber ring, causing the pressed workpiece to rotate upward along the screw 5 until the pressed workpiece is completely rotated out. The screw 5 is then limited by the first rolling ball 15, and then as the pressed workpiece is fully rotated out, the screw 5 rotates upward along the screw 5. The workpiece follows the screw 5 in a cyclical motion. The workpiece that has been pressed on the screw 5 will separate from the rubber ring on the first turntable 703 on the right side, and the toothed ring 8 on the movable seat 4 will also separate from the rubber ring on the second turntable 1402. Then, the workpiece that has been pressed is taken out from the designated screw 5 in the cyclical motion by the robotic arm, so as to discharge the workpiece that has been pressed. During this period, when the workpiece that has been pressed separates from the first rolling ball 15 on the limit frame 602, the torsion spring 603 returns to its original state, and the torsion spring 603 drives the limit frame 602 to reverse and reset. Repeat the above operation to achieve automatic and continuous pressing of the workpieces to be processed without interruption. After all the workpieces to be processed have been pressed, the first motor 301, the second motor 702 and the third motor 1301 are turned off by controlling the control panel 2.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An oil filter element end cap pressing device, comprising a support platform (1) and a control panel (2), wherein the control panel (2) is mounted on the support platform (1), characterized in that, A circulation mechanism is provided on the support platform (1), and movable seats (4) are connected at intervals on the circulation mechanism. The circulation mechanism is used to drive the movable seats (4) to perform cyclical movement. A screw (5) is provided on the movable seat (4), and the screw (5) is used to cooperate with the threaded hole on the workpiece. A limiting mechanism for limiting the workpiece is provided on the movable seat (4). A rotating mechanism is provided on the support platform (1), and the rotating mechanism is used to drive the workpiece to rotate. A toothed ring (8) is rotatably installed on the movable seat (4). A spiral groove (901) and an annular groove (902) are opened on the movable seat (4). The spiral groove (901) The toothed ring (8) is connected to the annular groove (902). A slider (10) is symmetrically slidably arranged on the toothed ring (8). A pressing wheel (11) is rotatably arranged on the slider (10). The pressing wheel (11) is used to press the end cap (102) and filter element housing (101) on the workpiece. A ball (12) is rotatably arranged on the slider (10). The ball (12) is used to roll in the spiral groove (901) and the annular groove (902). A rotating mechanism for driving the toothed ring (8) to rotate is provided on the support platform (1). A reset mechanism for resetting the slider (10) is provided on the toothed ring (8).

2. The oil filter element end cap pressing device as described in claim 1, characterized in that, The circulation mechanism includes a first motor (301), a toothed pulley (302) and a toothed flat belt (303). The first motor (301) is symmetrically mounted on the support platform (1). The toothed pulley (302) is connected to the output shaft of the first motor (301). The toothed flat belt (303) is provided between the two toothed pulleys (302). The movable seat (4) is spaced on the toothed flat belt (303).

3. The oil filter element end cap pressing device as described in claim 1, characterized in that, The limiting mechanism includes a mounting frame (601), a limiting frame (602), and a torsion spring (603). The mounting frame (601) is installed on the side of the movable seat (4) at intervals. A limiting frame (602) for limiting the workpiece is rotatably mounted on the mounting frame (601). A torsion spring (603) is connected between the limiting frame (602) and the mounting frame (601).

4. The oil filter element end cap pressing device as described in claim 1, characterized in that, The rotating mechanism includes a connecting frame (701), a second motor (702) and a first turntable (703). The connecting frame (701) is symmetrically arranged on the support platform (1). The second motor (702) is installed on the connecting frame (701). The first turntable (703) is connected to the output shaft of the second motor (702). The first turntable (703) is used to drive the workpiece to rotate.

5. The oil filter element end cap pressing device as described in claim 1, characterized in that, The rotating mechanism includes a third motor (1301), a sprocket (1302), a chain (1303), and a toothed block (1304). The third motor (1301) is mounted on the support platform (1). The sprocket (1302) is symmetrically rotated on the support platform (1). The output shaft of the third motor (1301) is connected to one of the sprockets (1302). A chain (1303) is arranged between the two sprockets (1302). Toothed blocks (1304) are spaced apart on the chain (1303). The toothed blocks (1304) are used to drive the toothed ring (8) to rotate.

6. The oil filter element end cap pressing device as described in claim 4, characterized in that, The reset mechanism includes a spring (1401) and a second turntable (1402). The spring (1401) is connected between the slider (10) and the gear ring (8). The output shaft of one of the second motors (702) is connected to the second turntable (1402). The second turntable (1402) is used to drive the gear ring (8) to rotate and reset.

7. The oil filter element end cap pressing device as described in claim 3, characterized in that, It also includes a first rolling ball (15), which is rotatably arranged on the limiting frame (602) at intervals. The first rolling ball (15) is used to contact the filter housing (101) on the workpiece.

8. The oil filter element end cap pressing device as described in claim 1, characterized in that, It also includes a second rolling ball (16), which is rotatably arranged on the movable seat (4) at intervals. The second rolling ball (16) is used to contact the end cap (102) on the workpiece.

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