Bearing press fitting apparatus for angle grinder head shell

Abstract

The application relates to the technical field of angle grinders, in particular to a bearing press-fitting device for an angle grinder head shell, which comprises a machine box, a support is arranged in the machine box, a side support is arranged on one end of the machine box, a supporting frame is arranged on the top of the side support, a multifunctional press-fitting part is arranged on the side support and used for taking and press-fitting bearings, the multifunctional press-fitting part comprises a positioning frame arranged on the bottom of the supporting frame, an output motor is arranged on the positioning frame, a first lead screw and a sliding plate threaded on the first lead screw, the first lead screw is connected to the output end of the output motor through a shaft sleeve, an electric push rod is arranged on the bottom of the sliding plate through a fixing frame, an intermediate plate is arranged on the output end of the electric push rod, a cylindrical rod is rotatably arranged on the intermediate plate, a pressing block is integrated on the bottom of the cylindrical rod, a magnet is arranged on the pressing block, and a locking assembly is arranged on the pressing block and used as an auxiliary assembly of the multifunctional press-fitting part and for locking the bearings.

Description

Technical Field

[0001] This application relates to the field of angle grinder technology, and in particular to bearing press-fitting equipment for angle grinder head housings. Background Technology

[0002] With the development of modern industry, the application of various mechanical equipment is becoming increasingly widespread. Among them, angle grinders, as a commonly used tool, have important applications in metal processing, construction, and other fields. The performance and service life of an angle grinder largely depend on the quality and installation accuracy of its key internal component—the bearing. Traditional bearing installation methods often employ manual or semi-automatic techniques, which suffer from low efficiency, low precision, and high labor intensity. These problems are particularly pronounced in applications requiring frequent bearing replacements.

[0003] In addition, in order to ensure the smooth operation of bearings, reduce wear, and extend service life, lubrication before bearing installation is a crucial step. However, on traditional production lines, this process often relies on manual operation, which not only increases costs but also easily leads to uneven lubrication, missed coating, and other problems, affecting product quality.

[0004] This application proposes a bearing press-fitting device for angle grinder head housings to address this issue. Summary of the Invention

[0005] The purpose of this application is to address at least one of the aforementioned technical deficiencies.

[0006] Therefore, one objective of this application is to provide a bearing press-fitting device for an angle grinder head housing, in order to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, one embodiment of this application provides a bearing press-fitting device for an angle grinder head housing, comprising: a housing with a bracket installed inside; a side bracket mounted on one end of the housing, with a support frame mounted on the top of the side bracket; a multi-functional press-fitting unit disposed on the side bracket for picking up and pressing the bearing, comprising: a positioning frame mounted on the bottom of the support frame, with an output motor mounted on the positioning frame; a first lead screw and a sliding plate threaded onto the first lead screw, the first lead screw being connected to the output end of the output motor via a bushing; an electric push rod mounted on the bottom of the sliding plate via a fixed frame, with an intermediate plate mounted on the output end of the electric push rod, a cylindrical rod rotatably disposed on the intermediate plate, a pressure block integrated at the bottom of the cylindrical rod, and a magnet mounted on the pressure block; and a locking assembly disposed on the pressure block as an auxiliary component of the multi-functional press-fitting unit for locking the bearing; and a head housing. The housing placement section, used to hold the angle grinder head housing, includes: a stepper motor mounted on a bracket; a placement block with two symmetrically distributed placement slots for holding the head housing, the bottom of the placement block extending with a support rod connected to the output end of the stepper motor via a bushing; an oiling section, used to spray lubricating oil onto the bearing surface, including: a fixing frame mounted on a side bracket, with a connecting member slidably mounted on the fixing frame; a return spring, one end connected to a positioning frame and the other end connected to the connecting member, the return spring providing a return force to the connecting member; a first gear and a first rack meshing with it, the first rack mounted on the connecting member via a cross block; a second lead screw mounted on the side bracket, with a slider threaded onto the second lead screw, a nozzle mounted on the slider, the second lead screw connected to the first gear via a transmission assembly; and a liquid pump, the output end of which is connected to the nozzle via a hose.

[0008] Preferably, of any of the above solutions, the top of the chassis is provided with an annular groove; two arc-shaped blocks are installed at the bottom of the placement block, and the arc-shaped blocks are slidably disposed within the annular groove.

[0009] Preferably, in any of the above embodiments, a guide rod is installed on the positioning frame, and the slide plate is slidably mounted on the guide rod; an extension block is integrated at one end of the intermediate plate, and a through hole is provided on the extension block, and four first slots arranged in a cylindrical array are provided in the through hole; a connecting slot is provided on the pressure block, and a connecting slot is provided on the cylindrical rod, and the connecting slot and the connecting slot are interconnected.

[0010] Preferably, according to any of the above embodiments, the locking assembly includes: two symmetrically distributed locking blocks, both slidably disposed in the connecting groove, one end of each locking block being a bevel, and a first spring being installed at one end of each locking block, the other end of which is installed in the connecting groove; a driving block, both ends of which are bevels, the driving block being slidably disposed in the communicating groove, and an unlocking rod being installed at the bottom of the driving block; and a second spring, one end of which is installed in the communicating groove, and the other end of which is connected to the top of the driving block.

[0011] Preferably, in any of the above embodiments, the multifunctional pressing part further includes a rotating assembly; the rotating assembly includes: a second rack, mounted on a side bracket via a support block; a second gear, used in conjunction with the second rack; a connecting rod, rotatably disposed within a through hole, one end of the connecting rod being connected to the second gear, the connecting rod having four first hemispherical grooves arranged in an array; a first bevel gear, and a second bevel gear meshing with it, the first bevel gear being mounted on a cylindrical rod, and the second bevel gear being mounted on one end of the connecting rod.

[0012] Preferably, in any of the above embodiments, the rotating assembly further includes: four first compression springs, each installed in one of the four first slots; and four first connecting balls, each connected to one of the four first compression springs and slidably disposed in one of the four first slots.

[0013] Preferably, in any of the above embodiments, the oiling section further includes: a limiting rod, mounted on a side bracket, with the slider slidably disposed on the limiting rod; an oil tank for storing lubricating oil, the oil tank being mounted on the side bracket, and a transmission pipe installed on the oil tank, the transmission pipe being connected to the input pipe of the liquid pump; and a pressure plate, mounted on an extension block, the pressure plate being used to cooperate with the connector and apply pressure to the connector.

[0014] Preferably, according to any of the above embodiments, the transmission assembly includes: a first transmission rod rotatably mounted on a first support plate mounted on the top of the side bracket, with the first gear mounted on the first transmission rod; a second transmission rod rotatably mounted on a second support plate mounted on the top of the side bracket; a first pulley mounted on the first transmission rod; a second pulley mounted on the second transmission rod; a synchronous belt sleeved on the first and second pulleys for transmission between the first and second pulleys; a third bevel gear and a fourth bevel gear meshing with it, the third bevel gear being mounted on a second lead screw, and the fourth bevel gear being connected to the second transmission rod.

[0015] Preferably, in any of the above embodiments, the oiling section further includes a triggering assembly for triggering the liquid pump; the triggering assembly includes: a trigger rod mounted on a fixed frame, with an extension rod mounted at the bottom of the trigger rod; a fixing block mounted on a middle plate, the fixing block having a square groove, the interior of which has two symmetrically distributed second hemispherical grooves; a connecting block with a contact piece mounted thereon for engaging the trigger rod, the connecting block being slidably disposed within the square groove, the connecting block having two symmetrically distributed second slot holes, and two drive grooves; a second compression spring mounted within the second slot holes; a second connecting ball mounted on the second compression spring and slidably disposed within the second slot holes; and a positioning rod mounted on a sliding plate, the positioning rod having a first moving block and a second moving block mounted thereon, which respectively engage with the two drive grooves to move the connecting block.

[0016] Preferably, any of the above solutions further includes: a feeding rack for placing the bearing, the feeding rack having a through groove for the locking block to move within it; and a feeding push rod installed at one end of the feeding rack, the output end of the feeding push rod being equipped with a push plate for pushing the bearing to move within the feeding rack.

[0017] Compared with the prior art, the advantages and beneficial effects of this application are as follows: 1. The multi-functional press-fitting section design enables precise positioning and press-fitting of bearings. This automated alignment method greatly improves assembly accuracy, reduces errors caused by human factors, speeds up assembly, and enhances production efficiency.

[0018] 2. The ingenious design of the oiling section enables automated lubrication of the bearings before installation. By controlling the rotation of the placement block with a stepper motor, each bearing to be installed can receive lubricating oil evenly. This process not only ensures the uniformity and sufficiency of lubrication, avoiding omissions or over-lubrication that may occur during manual operation, but also seamlessly connects the entire lubrication process with the bearing pressing process, further improving the continuity and efficiency of production.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first-view schematic diagram according to an embodiment of this application; Figure 2 This is a schematic diagram from a second perspective according to an embodiment of this application; Figure 3 This is a schematic cross-sectional view of the chassis according to an embodiment of this application; Figure 4 This is a schematic diagram of a feeding rack according to an embodiment of this application; Figure 5 This is a partial schematic diagram according to an embodiment of this application; Figure 6 This is a schematic diagram of the inter-plate installation according to an embodiment of this application; Figure 7 This is a schematic cross-sectional view of the expansion block according to an embodiment of this application; Figure 8 According to the embodiments of this application Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic cross-sectional view of the pressing block according to an embodiment of this application; Figure 10 According to the embodiments of this application Figure 9 Enlarged view of point B in the middle; Figure 11 This is a schematic diagram of the triggering component according to an embodiment of this application; Figure 12 This is a schematic cross-sectional view of the fixing block according to an embodiment of this application; Figure 13 According to the embodiments of this application Figure 12 Enlarged view of point C in the middle; Figure 14 This is a schematic diagram of magnet installation according to an embodiment of this application; Figure 15 This is a schematic diagram of the second lead screw connection according to an embodiment of this application; Figure 16 This is a schematic diagram of a transmission assembly according to an embodiment of this application.

[0021] In the diagram: 1. Chassis; 2. Side bracket; 21. Support frame; 3. Multifunctional pressing part; 31. Positioning frame; 32. Output motor; 33. First lead screw; 3301. Slide plate; 34. Electric push rod; 3401. Fixing frame; 3402. Middle plate; 3403. Cylindrical rod; 3404. Pressing block; 3405. Magnet; 3406. Expansion block; 35. Locking assembly; 3501. Locking block; 3502. First spring; 3503. Drive block; 3504. Unlocking rod; 3505. Second spring; 36. Rotating assembly; 3601. Second rack; 3602. Second gear; 3603. Connecting rod; 3604. First bevel gear; 3605. Second bevel gear; 3606. First compression spring; 3607. First connecting ball; 4. Head shell placement part; 41. Stepper motor; 42. Placement block; 4201. 5. Support rod, 5. Oiling part, 51. Fixing bracket, 5101. Connecting piece, 52. Return spring, 53. First gear, 5301. First rack, 54. Second lead screw, 5401. Slider, 5402. Nozzle, 55. Transmission assembly, 5501. First transmission rod, 5502. Second transmission rod, 5503. First pulley, 5504. Second pulley, 5505. Synchronous belt, 5506. Third cone Gear, 5507, Fourth bevel gear, 56, Liquid pump, 57, Trigger assembly, 5701, Trigger rod, 5702, Extension rod, 5703, Fixing block, 5704, Connecting block, 5705, Second compression spring, 5706, Second connecting ball, 5707, Positioning rod, 5708, First moving block, 5709, Second moving block, 58, Pressure plate, 6, Feeding rack, 7, Feeding push rod, 71, Push plate. Detailed Implementation

[0022] like Figures 1 to 16 As shown, the bearing press-fitting equipment for the head shell of an angle grinder includes a housing 1, a side support 2, a multi-functional press-fitting part 3, a head shell placement part 4, and an oiling part 5.

[0023] Furthermore, a bracket is installed inside the chassis 1, and an annular groove is formed on the top of the chassis 1.

[0024] Furthermore, the side bracket 2 is installed on one end of the chassis 1, and a support frame 21 is installed on the top of the side bracket 2.

[0025] Furthermore, the multi-functional pressing part 3, located on the side bracket 2, is used for picking up and pressing the bearing, including: A positioning frame 31 is installed at the bottom of the support frame 21, and an output motor 32 is installed on the positioning frame 31; The first lead screw 33 and the slide plate 3301 threaded on the first lead screw 33 are connected to the output end of the output motor 32 via a bushing. An electric push rod 34 is mounted on the bottom of a slide plate 3301 via a fixed frame 3401. An intermediate plate 3402 is mounted on the output end of the electric push rod 34. A cylindrical rod 3403 is rotatably mounted on the intermediate plate 3402. A pressure block 3404 is integrated at the bottom of the cylindrical rod 3403. A magnet 3405 is mounted on the pressure block 3404. A guide rod is installed on the positioning frame 31, and the slide plate 3301 is slidably mounted on the guide rod. One end of the intermediate plate 3402 is integrated with an expansion block 3406, and the expansion block 3406 has a through hole, and four first slots are arranged in a cylindrical array inside the through hole. The pressure block 3404 is provided with a connecting groove, and the cylindrical rod 3403 is provided with a communicating groove. The communicating groove and the connecting groove are interconnected. The size of the pressure block 3404 is smaller than the size of the bearing. Locking assembly 35, disposed on pressure block 3404, serves as an auxiliary component of the multifunctional pressing part 3 for locking the bearing, and includes: Two symmetrically distributed locking blocks 3501 are slidably disposed in the connecting groove. One end of each locking block 3501 is set as an inclined surface. A first spring 3502 is installed at one end of each locking block 3501, and the other end of the first spring 3502 is installed in the connecting groove. The driving block 3503 has beveled surfaces at both ends. The driving block 3503 is slidably disposed in the communicating groove. An unlocking rod 3504 is installed at the bottom of the driving block 3503. The second spring 3505 has one end installed in the connecting groove and the other end connected to the top of the drive block 3503; Specifically, the elastic force of the second spring 3505 is greater than that of the first spring 3502; Also includes: Rotating assembly 36 includes: The second rack 3601 is mounted on the side bracket 2 via a support block; The second gear 3602 is used in conjunction with the second rack 3601; A connecting rod 3603 is rotatably disposed in a through hole. One end of the connecting rod 3603 is connected to the second gear 3602. Four first hemispherical grooves are provided on the connecting rod 3603 in an array. A first bevel gear 3604 and a second bevel gear 3605 meshing therewith, wherein the first bevel gear 3604 is mounted on a cylindrical rod 3403 and the second bevel gear 3605 is mounted on one end of a connecting rod 3603; The rotating assembly 36 further includes: Four first compression springs 3606 are respectively installed in four first slots; Four first connecting balls 3607 are respectively connected to four first compression springs 3606, and are slidably disposed in four first slots.

[0026] Specifically, the arrangement of the first compression spring 3606 and the first connecting ball 3607 ensures that the connecting rod 3603 will not rotate actively when it is not rotating.

[0027] Furthermore, the head housing placement part 4 is used to place the angle grinder head housing, including: Stepper motor 41 is mounted on a bracket; The placement block 42 has two symmetrically distributed placement slots for placing the head shell. A support rod 4201 extends from the bottom of the placement block 42. The support rod 4201 is connected to the output end of the stepper motor 41 through a bushing. Two arc-shaped blocks are installed at the bottom of the placement block 42 and are slidably disposed in the annular groove.

[0028] Specifically, two placement slots are set up, and the two placement slots operate alternately under the drive of stepper motor 41.

[0029] Furthermore, the oiling section 5 is used to spray lubricating oil onto the bearing surface, including: A fixing frame 51 is mounted on a side bracket 2, and a connector 5101 is slidably disposed on the fixing frame 51; The return spring 52 is connected at one end to the positioning bracket 31 and at the other end to the connector 5101. The return spring 52 is used to provide a return force for the connector 5101. The first gear 53 and the first rack 5301 meshing with it, the first rack 5301 being mounted on the connector 5101 via a cross block; The second lead screw 54 is mounted on the side bracket 2. A slider 5401 is threaded on the second lead screw 54. A nozzle 5402 is mounted on the slider 5401. The second lead screw 54 is connected to the first gear 53 through the transmission assembly 55. The transmission assembly 55 includes: The first transmission rod 5501 is rotatably mounted on the first support plate installed on the top of the side bracket 2, and the first gear 53 is mounted on the first transmission rod 5501. The second transmission rod 5502 is rotatably mounted on the second support plate installed on the top of the side bracket 2; The first pulley 5503 is mounted on the first transmission rod 5501; The second pulley 5504 is mounted on the second transmission rod 5502; Synchronous belt 5505 is sleeved on the first pulley 5503 and the second pulley 5504 and is used for transmission between the first pulley 5503 and the second pulley 5504. The third bevel gear 5506 and the fourth bevel gear 5507 meshing with it are mounted on the second lead screw 54, and the fourth bevel gear 5507 is connected to the second transmission rod 5502. A liquid pump 56, the output of which is connected to a nozzle 5402 via a hose; Also includes: A limiting rod is installed on the side bracket 2, and the slider 5401 is slidably disposed on the limiting rod; An oil tank for storing lubricating oil is mounted on a side support 2 and a transmission pipe is installed on the oil tank, which is connected to the input pipe of a pump 56. Trigger component 57, for triggering the pump 56, includes; A trigger rod 5701 is mounted on a fixed frame 3401, and an extension rod 5702 is mounted on the bottom of the trigger rod 5701; A fixing block 5703 is installed on the intermediate plate 3402. A square groove is provided on the fixing block 5703, and two symmetrically distributed second hemispherical grooves are provided inside the square groove. A connecting block 5704 is provided with a contact piece, which is used to cooperate with the trigger rod 5701. The connecting block 5704 is slidably disposed in a square groove. Two second slot holes are provided on the connecting block 5704 in a symmetrical arrangement. Two drive slots are also provided on the connecting block 5704. The second compression spring 5705 is installed in the second slot; The second connecting ball 5706 is mounted on the second compression spring 5705 and is slidably disposed in the second slot. A positioning rod 5707 is mounted on a sliding plate 3301. A first moving block 5708 and a second moving block 5709 are mounted on the positioning rod 5707, which respectively cooperate with two drive slots to realize the movement of the connecting block 5704. A pressure plate 58 is installed on the expansion block 3406. The pressure plate 58 is used to cooperate with the connector 5101 and apply pressure to the connector 5101.

[0030] Specifically, the arrangement of the second compression spring 5705 and the second connecting ball 5706 allows the connecting block 5704 to self-lock after position adjustment, preventing the connecting block 5704 from shaking during operation. Furthermore, this device also includes: The feeding rack 6 is used to place bearings. The feeding rack has a through groove for the locking block 3501 to move inside it. A feeding push rod 7 is installed at one end of the feeding rack 6. A push plate 71 is installed at the output end of the feeding push rod 7 to push the bearing to move within the feeding rack 6.

[0031] The bearing press-fitting equipment used for angle grinder head housings works on the following principle: Preparatory work: Place the angle grinder head into the placement slot on the placement block 42, and place multiple bearings on the feeding rack 6; Processing work: First, the output motor 32 drives the first lead screw 33 to move the slide plate 3301 under the limit of the guide rod, which drives the pressure block 3404 to move towards the position of the feeding rack 6, thereby driving the pressure block 3404 to be placed above the bearing. The intermediate plate 3402 is driven to move by the electric push rod 34. The intermediate plate 3402 drives the cylindrical rod 3403 and the pressure block 3404 to move downward. When the inclined surface on the locking block 3501 contacts the inner ring of the bearing, the pressure block 3404 is subjected to force and moves, and simultaneously drives the drive block 3503 to press the second spring 3505 until the bottom of the pressure block 3404 is in contact with the bearing. At this time, the magnet 3405 attracts the bearing to prevent the bearing from rotating on its own. At the same time, the drive block 3503 is no longer subjected to force, the second spring 3505 resets, pushes the drive block 3503, and drives the locking block 3501 to lock the bearing. During the movement of the aforementioned slide plate 3301, the second gear 3602 and pressure plate 58 are simultaneously driven by 5505, and the second gear 3602 and the second rack 3601 are in a meshing state. When the bearing is locked onto the pressure block 3404, the intermediate plate 3402 is driven to rise via the electric push rod 34, which in turn drives the cylindrical rod 3403 and the pressure block 3404 to rise. Simultaneously, the second gear 3602 rises in sync with the second rack 3601, and rotates. Since the second gear 3602 drives the connecting rod 3603 to rotate, the connecting rod 3603 drives the second bevel gear 3605 to rotate, which in turn drives the meshing first bevel gear 3604 to rotate, thereby driving the cylindrical rod 3403 to rotate, causing the bearing to rotate. (Note: There is a free stroke between the second gear 3602 and the second rack 3601, used to match the gap between the gear and the nozzle 5402; during the downward movement of the pressure block 3404, the second gear 3602 also rotates.) The pressure plate 58 also moves upwards simultaneously, driving the connecting piece 5101 upwards under the drive of the return spring 52, which in turn drives the first rack 5301 upwards. Driven by the first rack 5301, the first gear 53 rotates, which in turn drives the first transmission rod 5501 to rotate, which in turn drives the first pulley 5503. Through the synchronous belt 5505, the first pulley 5504 rotates, which in turn drives the second transmission rod 5502 to rotate. The second transmission rod 5502 drives the fourth bevel gear 5507 to rotate, which in turn drives the third bevel gear 5506 meshing with it to rotate, which in turn drives the second lead screw 54 to rotate. This causes the slider 5401 to move under the limit of the limit rod, which in turn drives the nozzle 5402 to move, so that the nozzle 5402 moves synchronously with the bearing (Note: There is also a free stroke between the first gear 53 and the first rack 5301. This stroke is also set to match the gap between the nozzle 5402 and the bearing). During the upward movement of the intermediate plate 3402, it also drives the fixed block 5703 and the connecting block 5704 to move. At this time, the second moving block 5709, in cooperation with the drive groove, drives the contact piece to move, so that the contact piece contacts the trigger rod 5701, energizing the liquid pump 56, drawing out the lubricating oil in the oil tank and spraying it out through the nozzle 5402 to spray oil onto the outer surface of the bearing (Note: When the extension rod 5702 at the bottom of the trigger rod 5701 contacts the contact piece, the liquid pump 56 is not energized, and the setting of the extension rod 5702 can also be understood as a period of idle travel of the contact piece). After the electric push rod 34 stops rising (at this time, with the cooperation of the second moving block 5709 and the drive groove, the contact piece is disengaged from the contact state with the trigger rod 5701), the output motor 32 drives the first lead screw 33 to rotate, drives the slide plate 3301 to move, and then drives the bearing to move, so that the bearing moves to the top of the head shell. Then the electric push rod 34 drives the bearing box head shell to move to perform the pressing work. As the pressing process proceeds, the unlocking rod 3504 contacts the bottom of the head shell and pushes the drive block 3503 to move, compressing the second spring 3505. At this time, driven by the first spring 3502, the locking block 3501 is pushed to move, releasing the lock on the bearing. The pressing process continues until the pressing work is completed, at which point the electric push rod 34 resets.

Claims

1. A bearing press-fitting device for an angle grinder head housing, characterized in that: include: The chassis, with a bracket installed inside; A side bracket is installed at one end of the chassis, and a support frame is installed on the top of the side bracket; A multi-functional pressing unit, located on a side support, is used for picking up and pressing bearings, including: A positioning frame is installed at the bottom of the support frame, and an output motor is mounted on the positioning frame; A first lead screw and a sliding plate threaded onto the first lead screw; the first lead screw is connected to the output end of the output motor via a bushing. An electric push rod is mounted on the bottom of a slide plate via a fixed frame. An intermediate plate is mounted on the output end of the electric push rod. A cylindrical rod is rotatably mounted on the intermediate plate. A pressure block is integrated at the bottom of the cylindrical rod, and a magnet is mounted on the pressure block. The multi-functional pressing section also includes a rotating assembly; The rotating assembly includes: The second rack is mounted on the side bracket via a support block; The second gear works in conjunction with the second rack. A connecting rod is rotatably disposed in a through hole. One end of the connecting rod is connected to a second gear. Four first hemispherical grooves are provided on the connecting rod in an array. A first bevel gear and a second bevel gear meshing with it, the first bevel gear being mounted on a cylindrical rod and the second bevel gear being mounted on one end of a connecting rod; A locking assembly, located on the pressure block, serves as an auxiliary component of the multifunctional pressing part and is used to lock the bearing. Head housing section, used to house the angle grinder head housing, includes: Stepper motor, mounted on a bracket; A placement block has two symmetrically distributed placement slots for placing the head shell. A support rod extends from the bottom of the placement block and is connected to the output end of a stepper motor via a bushing. The oiling section, used for spraying lubricating oil onto the bearing surface, includes: A fixing frame is mounted on a side bracket, and a connecting piece is slidably disposed on the fixing frame; A return spring, one end of which is connected to the positioning bracket and the other end of which is connected to the connecting piece, is used to provide a return force for the connecting piece; A first gear and a first rack meshing with it, the first rack being mounted on a connector via a cross block; The second lead screw is mounted on the side bracket. A slider is threaded onto the second lead screw, and a nozzle is mounted on the slider. The second lead screw is connected to the first gear through a transmission assembly. The liquid pump has its output connected to the nozzle via a hose.

2. The bearing press-fitting device for an angle grinder head housing according to claim 1, characterized in that: The top of the chassis is provided with an annular groove; Two arc-shaped blocks are installed at the bottom of the placement block, and the arc-shaped blocks are slidably disposed in the annular groove.

3. The bearing press-fitting device for an angle grinder head housing according to claim 1, characterized in that: A guide rod is installed on the positioning frame, and the slide plate is slidably mounted on the guide rod. An expansion block is integrated at one end of the intermediate plate. A through hole is provided on the expansion block, and four first slots are provided in a cylindrical array inside the through hole. The pressure block has a connecting groove, and the cylindrical rod has a communicating groove, which is interconnected with the connecting groove.

4. The bearing press-fitting device for an angle grinder head housing according to claim 3, characterized in that: The locking assembly includes: Two symmetrically distributed locking blocks are slidably disposed in the connecting groove. One end of each locking block is set as an inclined surface. A first spring is installed at one end of each locking block, and the other end of the first spring is installed in the connecting groove. A drive block with beveled ends is slidably disposed in a communicating groove, and an unlocking rod is installed at the bottom of the drive block; The second spring has one end installed in the connecting slot and the other end connected to the top of the drive block.

5. The bearing press-fitting device for an angle grinder head housing according to claim 1, characterized in that: The rotating assembly further includes: Four first compression springs are respectively installed in four first slots; Four first connecting balls are respectively connected to four first compression springs and are slidably disposed in four first slots.

6. The bearing press-fitting device for an angle grinder head housing according to claim 1, characterized in that: The oiling section also includes: A limiting rod is installed on a side bracket, and the slider is slidably mounted on the limiting rod; An oil tank for storing lubricating oil is mounted on a side support and a transfer pipe is installed on the oil tank, which is connected to the input pipe of a pump. A pressure plate, mounted on the extension block, is used to engage with the connector and apply pressure to the connector.

7. The bearing press-fitting device for an angle grinder head housing according to claim 1, characterized in that: The transmission assembly includes: The first transmission rod is rotatably mounted on the first support plate installed on the top of the side bracket, and the first gear is mounted on the first transmission rod. The second transmission rod is rotatably mounted on the second support plate installed on the top of the side bracket; The first pulley is mounted on the first drive rod; The second pulley is mounted on the second drive rod; A timing belt is fitted onto the first pulley and the second pulley and is used for transmission between the first pulley and the second pulley; A third bevel gear and a fourth bevel gear meshing with it, the third bevel gear being mounted on a second lead screw and the fourth bevel gear being connected to a second transmission rod.

8. The bearing press-fitting device for an angle grinder head housing according to claim 7, characterized in that: The oiling section also includes a triggering component for triggering the liquid pump; The triggering component includes; A trigger rod is mounted on a fixed frame, and an extension rod is installed at the bottom of the trigger rod; A fixing block is installed on the middle plate. The fixing block has a square groove, and two symmetrically distributed second hemispherical grooves are formed inside the square groove. A connecting block is provided with a contact piece for engaging a trigger rod. The connecting block is slidably disposed in a square groove. The connecting block has two symmetrically distributed second slots and two drive slots. The second compression spring is installed in the second slot. The second connecting ball is mounted on the second compression spring and slidably disposed within the second slot. A positioning rod is mounted on the slide plate. A first moving block and a second moving block are mounted on the positioning rod, which respectively cooperate with two drive slots to realize the movement of the connecting block.

9. The bearing press-fitting device for an angle grinder head housing according to claim 1, characterized in that: Also includes: A feeding rack for holding bearings, wherein a through slot is provided on the feeding rack for the locking block to move inside; A feeding push rod is installed at one end of the feeding rack. The output end of the feeding push rod is equipped with a push plate for pushing the bearing to move within the feeding rack.

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