Bearing press-fitting equipment for head shell of angle grinder

Abstract

The invention relates to the technical field of angle grinders, in particular to bearing press-fitting equipment for a head shell of an angle grinder, which comprises a case, a press-fitting device and a press-fitting device, the side bracket is mounted at one end of the case, and a supporting frame is mounted at the top of the side bracket; the multifunctional press-fitting part is arranged on the side bracket, is used for taking and press-fitting the bearing, and comprises a positioning frame which is arranged at the bottom of the supporting frame and is provided with an output motor; the sliding plate is arranged on the first lead screw in a threaded mode, and the first lead screw is connected to the output end of an output motor through a shaft sleeve; the electric push rod is installed at the bottom of the sliding plate through a fixing frame, a middle plate is installed at the output end of the electric push rod, a cylindrical rod is rotationally arranged on the middle plate, a pressing block is integrated at the bottom of the cylindrical rod, and a magnet is installed on the pressing block; and the locking assembly is arranged on the pressing block, serves as an auxiliary assembly of the multifunctional press-fitting part and is used for locking the bearing.

Description

Technical Field

[0001] The present application relates to the technical field of angle grinders, and in particular to a bearing press-fitting device for an angle grinder head shell. Background Art

[0002] With the development of modern industry, various mechanical equipment are increasingly used. 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 angle grinders depend largely on the quality and installation accuracy of their key internal components, the bearings. Traditional bearing installation methods are mostly manual or semi-automatic, which have problems such as low efficiency, low precision, and high labor intensity. These problems are more prominent in situations where bearings need to be replaced frequently.

[0003] In addition, in order to ensure the smooth operation of bearings, reduce wear and extend service life, lubrication before bearing installation is also 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, missing coating and other phenomena, affecting product quality.

[0004] In this regard, the present application proposes a bearing press-fitting device for an angle grinder head shell to solve this problem. Summary of the invention

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

[0006] To this end, one purpose of the present application is to propose a bearing press-fitting device for an angle grinder head shell to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present application provides a bearing pressing device for an angle grinder head shell, comprising: a chassis, a bracket installed inside thereof; a side bracket installed on one end of the chassis, a support frame installed on the top of the side bracket; a multifunctional pressing part, arranged on the side bracket, for taking and pressing the bearing, comprising: a positioning frame installed at the bottom of the support frame, an output motor installed on the positioning frame; a first screw rod, and a slide plate threadedly arranged on the first screw rod, the first screw rod being connected to the output end of the output motor through a sleeve; an electric push rod, installed at the bottom of the slide plate through a fixing frame, an intermediate plate being installed at the output end of the electric push rod, a cylindrical rod being rotatably arranged on the intermediate plate, a pressure block being integrated at the bottom of the cylindrical rod, and a magnet being installed on the pressure block; a locking assembly, arranged on the pressure block, as an auxiliary assembly of the multifunctional pressing part, for locking the bearing; a head The shell placement part is used to place the angle grinder head shell, including: a stepper motor, which is installed on the bracket; a placement block, on which two symmetrically distributed placement grooves are provided, and the placement grooves are used to place the head shell, and a support rod is extended from the bottom of the placement block, and the support rod is connected to the output end of the stepper motor through a shaft sleeve; an oiling part, which is used to spray lubricating oil on the bearing surface, including: a fixed frame, which is installed on the side bracket, and a connecting piece is slidably arranged on the fixed frame; a reset spring, one end of which is connected to the positioning frame, and the other end is connected to the connecting piece, and the reset spring is used to provide a reset force for the connecting piece; a first gear, and a first rack meshing therewith, and the first rack is installed on the connecting piece through a cross block; a second screw rod, which is installed on the side bracket, and a slider is threaded on the second screw rod, and a nozzle is installed on the slider, and the second screw rod is connected to the first gear through a transmission assembly; a liquid pump, the output end of which is connected to the nozzle through a hose.

[0008] Preferably, any of the above schemes is as follows: an annular groove is provided on the top of the chassis; and two arc blocks are installed on the bottom of the placement block, and the arc blocks are slidably arranged in the annular groove.

[0009] Preferably, any of the above schemes is that a guide rod is installed on the positioning frame, and the slide plate is slidably arranged 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 slot holes distributed in a cylindrical array are provided in the through hole; a connecting groove is provided on the pressure block, and a connecting groove is provided on the cylindrical rod, and the connecting groove and the connecting groove are interconnected.

[0010] Preferably, the locking assembly comprises: two symmetrically distributed locking blocks, both of which are slidably arranged in the connecting groove, one end of the locking block is arranged as an inclined surface, one end of each of the two locking blocks is provided with a first spring, and the other end of the first spring is installed in the connecting groove; a driving block, both ends of which are inclined surfaces, the driving block is slidably arranged in the connecting groove, and an unlocking rod is installed at the bottom of the driving block; a second spring, one end of which is installed in the connecting groove, and the other end is connected to the top of the driving block.

[0011] Preferably, any of the above schemes is that the multifunctional pressing part also 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 arranged in the through hole, one end of the connecting rod is connected to the second gear, and the connecting rod is provided with four first hemispherical grooves distributed in an array; a first bevel gear, and a second bevel gear meshing therewith, the first bevel gear is mounted on a cylindrical rod, and the second bevel gear is mounted on one end of the connecting rod.

[0012] Preferably, any of the above schemes further comprises: four first compression springs, respectively installed in the four first slots; and four first connecting balls, respectively connected to the four first compression springs and respectively slidably disposed in the four first slots.

[0013] Preferably, any of the above schemes includes: a limit rod installed on the side bracket, and the slider is slidably arranged on the limit rod; an oil tank for storing lubricating oil, the oil tank is installed on the side bracket, and a transmission pipe is installed on the oil tank, and the transmission pipe is connected to the input pipe of the liquid pump; a pressure plate installed on the expansion block, and the pressure plate is used to cooperate with the connecting piece to apply pressure to the connecting piece.

[0014] Preferably, any of the above schemes comprises: a first transmission rod, rotatably set on a first support plate installed on the top of the side bracket, and the first gear is installed on the first transmission rod; a second transmission rod, rotatably set on a second support plate installed on the top of the side bracket; a first pulley, installed on the first transmission rod; a second pulley, installed on the second transmission rod; a synchronous belt, sleeved on the first pulley and the second pulley, for transmission between the first pulley and the second pulley; a third bevel gear, and a fourth bevel gear meshing with the third bevel gear, the third bevel gear is installed on the second screw, and the fourth bevel gear is connected to the second transmission rod.

[0015] Preferably, any of the above schemes is that the oiling part also includes a trigger assembly for triggering the liquid pump; the trigger assembly includes: a trigger rod installed on a fixed frame, an expansion rod installed at the bottom of the trigger rod; a fixed block installed on the middle plate, a square groove is provided on the fixed block, and two symmetrically distributed second hemispherical grooves are provided inside the square groove; a connecting block is provided with a contact piece, which is used to cooperate with the trigger rod, the connecting block is slidably arranged in the square groove, the connecting block is provided with two symmetrically distributed second slot holes, and the connecting block is also provided with two drive slots; a second compression spring is installed in the second slot hole; a second connecting ball is installed on the second compression spring and slidably arranged in the second slot hole; a positioning rod is installed on the slide, and a first moving block and a second moving block are installed on the positioning rod, which respectively cooperate with the two drive slots to realize the movement of the connecting block.

[0016] Preferably, any of the above schemes further includes: a material unloading rack for placing bearings, a through groove is provided on the square material rack, and the through groove allows the locking block to move inside the material unloading rack; a feeding push rod is installed at one end of the material unloading rack, and a push plate is installed at the output end of the feeding push rod for pushing the bearing to move in the material unloading rack.

[0017] Compared with the prior art, the advantages and beneficial effects of this application are: 1. Through the design of the multifunctional press-fitting part, the bearing can be accurately positioned and pressed. This automated alignment method greatly improves the assembly accuracy, reduces the error caused by human factors, and speeds up the assembly speed and improves production efficiency.

[0018] 2. The ingenious design of the oiling part realizes the automatic lubrication of the bearing before installation. The rotation of the placement block is controlled by a stepper motor, so that each bearing to be installed can be evenly sprayed with lubricating oil. This process not only ensures the uniformity and sufficiency of lubrication, avoiding omissions or over-lubrication that may occur in manual operation, but also the entire lubrication process is seamlessly connected with the bearing press-fitting process, further improving the continuity and efficiency of production.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 It is a schematic diagram of a first viewing angle according to an embodiment of the present application; Figure 2 It is a schematic diagram of a second viewing angle according to an embodiment of the present application; Figure 3 A schematic cross-sectional view of a chassis according to an embodiment of the present application; Figure 4 This is a schematic diagram of a material placing rack according to an embodiment of the present application; Figure 5 It is a partial schematic diagram according to an embodiment of the present application; Figure 6 This is a schematic diagram of the installation of the intermediate plate according to an embodiment of the present application; Figure 7 It is a cross-sectional schematic diagram of an expansion block according to an embodiment of the present application; Figure 8 According to the embodiment of the present application Figure 7 The enlarged schematic diagram at A in the middle; Fig. 9 It is a schematic cross-sectional view of a briquette according to an embodiment of the present application; Fig.10 According to the embodiment of the present application Fig. 9 The enlarged schematic diagram of point B in the middle; Fig.11 A schematic diagram of a trigger component according to an embodiment of the present application; Fig.12 is a cross-sectional schematic diagram of a fixing block according to an embodiment of the present application; Fig.13 According to the embodiment of the present application Fig.12 The enlarged schematic diagram at C in the middle; Fig.14 This is a schematic diagram of magnet installation according to an embodiment of the present application; Fig.15 This is a schematic diagram of the second screw connection according to an embodiment of the present application; Fig.16 Schematic diagram of a transmission assembly according to an embodiment of the present application.

[0021] In the figure: 1, chassis, 2, side bracket, 21, support frame, 3, multifunctional pressing part, 31, positioning frame, 32, output motor, 33, first screw rod, 3301, slide plate, 34, electric push rod, 3401, fixed 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, driving 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, stepping motor, 42, placement block, 4201, Support rod, 5, oiling part, 51, fixing frame, 5101, connecting piece, 52, return spring, 53, first gear, 5301, first rack, 54, second screw rod, 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, expansion rod, 5703, fixed 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, discharge rack, 7, feeding push rod, 71, push plate. DETAILED DESCRIPTION

[0022] like Figures 1 to 16 As shown, the bearing pressing device for the head shell of an angle grinder includes a chassis 1, a side bracket 2, a multifunctional pressing 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 opened 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 multifunctional press-fitting part 3 is provided on the side bracket 2 and is used for taking and press-fitting the bearing, and includes: 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; A first screw rod 33, and a slide plate 3301 threadedly disposed on the first screw rod 33, wherein the first screw rod 33 is connected to an output end of the output motor 32 via a sleeve; The electric push rod 34 is installed at the bottom of the slide plate 3301 through a fixing frame 3401. The output end of the electric push rod 34 is installed with an intermediate plate 3402. A cylindrical rod 3403 is rotatably provided on the intermediate plate 3402. A pressing block 3404 is integrated at the bottom of the cylindrical rod 3403. A magnet 3405 is installed on the pressing block 3404. A guide rod is installed on the positioning frame 31, and the slide plate 3301 is slidably arranged on the guide rod; An expansion block 3406 is integrated at one end of the middle plate 3402. A through hole is formed on the expansion block 3406. Four first slots distributed in a cylindrical array are formed in the through hole. The pressing 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, and the size of the pressing block 3404 is smaller than the size of the bearing; The locking assembly 35 is provided on the pressing block 3404 and serves as an auxiliary assembly of the multifunctional pressing part 3 for locking the bearing, and includes: Two symmetrically distributed locking blocks 3501 are both slidably arranged in the connection groove, one end of the locking block 3501 is arranged as an inclined surface, one end of the two locking blocks 3501 is installed with a first spring 3502, and the other end of the first spring 3502 is installed in the connection groove; A driving block 3503, both ends of which are inclined surfaces, the driving block 3503 is slidably arranged in the connecting groove, and a unlocking rod 3504 is installed at the bottom of the driving block 3503; A second spring 3505, one end of which is installed in the connecting groove and the other end is connected to the top of the driving block 3503; Specifically, the elastic force of the second spring 3505 is greater than the elastic force of the first spring 3502; Also includes: The rotating assembly 36 comprises: The second rack 3601 is mounted on the side bracket 2 through a support block; The second gear 3602 is used in conjunction with the second rack 3601; A connecting rod 3603 is rotatably disposed in the through hole, one end of the connecting rod 3603 is connected to the second gear 3602, and the connecting rod 3603 is provided with four first hemispherical grooves distributed 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 the cylindrical rod 3403, and the second bevel gear 3605 is mounted on one end of the connecting rod 3603; The rotating assembly 36 further includes: Four first compression springs 3606 are respectively installed in the four first slots; The four first connecting balls 3607 are respectively connected to the four first compression springs 3606 and are respectively slidably disposed in the 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 does not actively rotate in a non-rotating state.

[0027] Furthermore, the head shell placement portion 4 is used to place the angle grinder head shell, including: A stepper motor 41 is mounted on a bracket; The placement block 42 has two symmetrically distributed placement grooves thereon, which are used to place the head shell. A support rod 4201 extends from the bottom of the placement block 42, and the support rod 4201 is connected to the output end of the stepper motor 41 through a shaft sleeve. Two arc blocks are installed at the bottom of the placement block 42, and the arc blocks are slidably set in the annular groove.

[0028] Specifically, two placement slots are provided, and driven by the stepping motor 41 , the two placement slots operate alternately.

[0029] Furthermore, the oiling part 5 is used to spray lubricating oil on the bearing surface, including: A fixing frame 51 is mounted on the side bracket 2, and a connecting piece 5101 is slidably provided on the fixing frame 51; A return spring 52, one end of which is connected to the positioning frame 31, and the other end of which is connected to the connecting member 5101, and the return spring 52 is used to provide a return force for the connecting member 5101; A first gear 53, and a first rack 5301 meshing therewith, wherein the first rack 5301 is mounted on the connecting member 5101 via a horizontal block; A second screw rod 54 is mounted on the side bracket 2. A slider 5401 is threadedly provided on the second screw rod 54. A nozzle 5402 is mounted on the slider 5401. The second screw rod 54 is connected to the first gear 53 through a transmission assembly 55. The transmission assembly 55 comprises: A first transmission rod 5501 is rotatably mounted on a first support plate mounted 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 a second support plate mounted on the top of the side bracket 2; A first pulley 5503 is mounted on the first transmission rod 5501; A second pulley 5504 is mounted on the second transmission rod 5502; A 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; a third bevel gear 5506 and a fourth bevel gear 5507 meshing therewith, wherein the third bevel gear 5506 is mounted on the second screw rod 54, and the fourth bevel gear 5507 is connected to the second transmission rod 5502; A liquid pump 56, whose output end is connected to the spray head 5402 through a hose; Also includes: A limit rod is mounted on the side bracket 2, and the slider 5401 is slidably arranged on the limit rod; An oil tank for storing lubricating oil, the oil tank is mounted on the side bracket 2, a transmission pipe is mounted on the oil tank, and the transmission pipe is connected to the input pipe of the liquid pump 56; A trigger assembly 57, used to trigger the liquid pump 56, includes: A trigger rod 5701 is mounted on the fixed frame 3401, and an expansion rod 5702 is mounted on the bottom of the trigger rod 5701; A fixing block 5703 is mounted on the middle plate 3402. The fixing block 5703 is provided with a square groove, and two second hemispherical grooves are symmetrically arranged 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 arranged in the square groove. Two second slots symmetrically distributed are provided on the connecting block 5704. Two driving grooves are also provided on the connecting block 5704. A 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; The positioning rod 5707 is mounted on the slide plate 3301. The positioning rod 5707 is equipped with a first moving block 5708 and a second moving block 5709, which respectively cooperate with two driving grooves to realize the movement of the connecting block 5704. The pressure plate 58 is installed on the expansion block 3406 , and the pressure plate 58 is used to cooperate with the connecting piece 5101 to apply pressure to the connecting piece 5101 .

[0030] Specifically, the second compression spring 5705 and the second connecting ball 5706 are provided so that the connecting block 5704 can be self-locked after the position is adjusted, thereby preventing the connecting block 5704 from shaking during operation. Furthermore, the device also includes: The material rack 6 is used to place the bearings. The material rack is provided with a through slot for the locking block 3501 to move inside the through slot. The feeding push rod 7 is installed at one end of the unloading rack 6. A push plate 71 is installed at the output end of the feeding push rod 7 for pushing the bearing to move in the unloading rack 6.

[0031] The bearing press-fitting equipment for angle grinder head shell works as follows: Preparation: Place the angle grinder housing head in the placement groove on the placement block 42, and place multiple bearings on the material placement rack 6; Processing work: First, the output motor 32 drives the first screw rod 33 to drive the slide plate 3301 to move under the limit of the guide rod, and drives the pressing block 3404 to move to the position of the unloading rack 6, and then drives the pressing block 3404 to be placed above the bearing; The electric push rod 34 drives the middle plate 3402 to move, and the middle 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 moves under force, and synchronously drives the driving block 3503 with the belt 5505 to squeeze the second spring 3505 until the bottom of the pressing block 3404 fits the bearing. At this time, the magnet 3405 attracts the bearing to prevent the bearing from rotating itself. At the same time, the driving block 3503 is no longer under force, and the second spring 3505 is reset to push the driving block 3503, so that the locking block 3501 is driven to lock the bearing. During the movement of the slide plate 3301, the synchronous belt 5505 drives the second gear 3602 and the pressure plate 58, and makes the second gear 3602 and the second rack 3601 in a meshing state; When the bearing is locked on the pressing block 3404, the electric push rod 34 drives the intermediate plate 3402 to rise, driving the cylindrical rod 3403 and the pressing block 3404 to rise: At the same time, the second gear 3602 rises synchronously, and with the cooperation of the second rack 3601, the second gear 3602 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, driving the first bevel gear 3604 meshing therewith to rotate, and then driving the cylindrical rod 3403 to rotate, so that the bearing rotates (Note: there is an idle stroke at one end between the second gear 3602 and the second rack 3601, which is used to match the distance between the nozzle 5402; during the downward movement of the above-mentioned pressing block 3404, the second gear 3602 also rotates); The pressing plate 58 also moves upward at the same time, and driven by the return spring 52, the connecting member 5101 moves upward, and then drives the first rack 5301 to move upward. Driven by the first rack 5301, the first gear 53 drives the first transmission rod 5501 to rotate, and drives the first pulley 5503, and drives the second pulley 5504 to rotate through the synchronous belt 5505. The second pulley 5504 drives the second transmission rod 5502 to rotate, and the second transmission rod 5502 drives the fourth bevel gear 5507 to rotate, and drives the third bevel gear 5506 meshing therewith to rotate, and then drives the second screw rod 54 to rotate, and drives the slider 5401 to move under the limit of the limit rod, and then drives the nozzle 5402 to move, so that the nozzle 5402 moves synchronously with the bearing (Note: there is also an idle stroke between the first gear 53 and the first rack 5301, and the setting of this stroke is also to match the spacing between the nozzle 5402 and the bearing); The middle plate 3402 also drives the fixed block 5703 and the connecting block 5704 to move during the rising process. At this time, the second moving block 5709 cooperates with the driving groove to drive the contact piece to move, so that the contact piece contacts the trigger rod 5701, and the liquid pump 56 is energized to extract the lubricating oil in the oil tank and spray it through the nozzle 5402 to spray 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 in the energized state, and the setting of the extension rod 5702 can also be understood as a section of idle travel of the contact piece); After the electric push rod 34 stops rising (at this time, the contact piece is out of contact with the trigger rod 5701 under the cooperation of the second moving block 5709 and the driving slot), the first screw rod 33 is driven to rotate by the output motor 32, driving the slide plate 3301 to move and then driving the bearing to move to the top of the head shell, and then the electric push rod 34 drives the head shell of the bearing box to move for press-fitting; As the press-fitting process proceeds, the unlocking rod 3504 contacts the bottom of the head shell and pushes the driving block 3503 to move, squeezing 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 until the press-fitting work is completed and the electric push rod 34 is reset.

Claims

1. Bearing press-fitting equipment for angle grinder head housing, characterized in that: include: a chassis having a bracket installed therein; A side bracket is installed on one end of the chassis, and a support frame is installed on the top of the side bracket; The multifunctional press-fitting part is arranged on the side bracket and is used for taking and press-fitting the bearings, including: A positioning frame, installed at the bottom of the support frame, and an output motor is installed on the positioning frame; A first screw rod, and a slide plate threadedly disposed on the first screw rod, wherein the first screw rod is connected to an output end of an output motor via a sleeve; An electric push rod is installed at the bottom of the slide plate through a fixing frame, an intermediate plate is installed at the output end of the electric push rod, a cylindrical rod is rotatably arranged on the intermediate plate, a pressing block is integrated at the bottom of the cylindrical rod, and a magnet is installed on the pressing block; A locking assembly, provided on the pressing block, as an auxiliary assembly of the multifunctional pressing part, for locking the bearing; The head shell placement part is used to place the angle grinder head shell, including: A stepper motor is mounted on a bracket; A placement block, on which two symmetrically distributed placement grooves are provided, the placement grooves are used to place the head shell, a support rod extends from the bottom of the placement block, and the support rod is connected to the output end of the stepper motor through a shaft sleeve; The oiling part is used to spray lubricating oil on the bearing surface, including: A fixing frame is mounted on the side bracket, and a connecting piece is slidably arranged on the fixing frame; A return spring, one end of which is connected to the positioning frame and the other end of which is connected to the connecting member, and the return spring is used to provide a return force for the connecting member; A first gear and a first rack meshing therewith, wherein the first rack is mounted on the connecting member via a cross block; A second screw rod is mounted on the side bracket, a slider is threadedly arranged on the second screw rod, a nozzle is mounted on the slider, and the second screw rod is connected to the first gear through a transmission assembly; The liquid suction pump has its output end connected to the spray head through a hose.

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

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

4. The bearing press-fitting device for an angle grinder head shell according to claim 3, characterized in that: The locking assembly comprises: Two symmetrically distributed locking blocks are both slidably arranged in the connecting groove, one end of the locking block is arranged as an inclined surface, one end of the two locking blocks is installed with a first spring, and the other end of the first spring is installed in the connecting groove; A driving block, both ends of which are inclined surfaces, the driving block is slidably arranged in the connecting groove, and an unlocking rod is installed at the bottom of the driving block; One end of the second spring is installed in the connecting groove, and the other end is connected to the top of the driving block.

5. The bearing press-fitting device for an angle grinder head shell according to claim 4, characterized in that: The multifunctional press-fitting part also includes a rotating assembly; The rotating assembly comprises: A second rack is mounted on the side bracket via a support block; A second gear, used in conjunction with a second rack; A connecting rod is rotatably disposed in the through hole, one end of the connecting rod is connected to the second gear, and the connecting rod is provided with four first hemispherical grooves distributed in an array; A first bevel gear and a second bevel gear meshing therewith, wherein the first bevel gear is mounted on a cylindrical rod and the second bevel gear is mounted on one end of a connecting rod.

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

7. The bearing press-fitting device for an angle grinder head shell according to claim 1, characterized in that: The oiling part also includes: A limit rod is mounted on the side bracket, and the slider is slidably arranged on the limit rod; An oil tank, used for storing lubricating oil, the oil tank is mounted on the side bracket, a transmission pipe is mounted on the oil tank, and the transmission pipe is connected to the input pipe of the liquid pump; A pressure plate is installed on the expansion block, and is used to cooperate with the connecting piece to apply pressure to the connecting piece.

8. The bearing press-fitting device for an angle grinder head shell according to claim 1, characterized in that: The transmission assembly comprises: A first transmission rod is rotatably mounted on a first support plate mounted on the top of the side bracket, and the first gear is mounted on the first transmission rod; A second transmission rod is 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 is mounted on the second transmission rod; A synchronous belt, sleeved on the first pulley and the second pulley, used for transmission between the first pulley and the second pulley; A third bevel gear and a fourth bevel gear meshing therewith, wherein the third bevel gear is mounted on the second screw rod and the fourth bevel gear is connected to the second transmission rod.

9. The bearing press-fitting device for an angle grinder head shell according to claim 8, characterized in that: The oiling part also includes a trigger assembly for triggering the liquid pump; The trigger component comprises: A trigger rod is mounted on the fixed frame, and an expansion rod is mounted on the bottom of the trigger rod; A fixing block is mounted on the middle plate, the fixing block is provided with a square groove, and the interior of the square groove is provided with two second hemispherical grooves which are symmetrically distributed; A connecting block, on which a contact piece is mounted, the contact piece is used to cooperate with the trigger rod, the connecting block is slidably arranged in the square groove, the connecting block is provided with two symmetrically distributed second slots, and the connecting block is also provided with two driving grooves; A second compression spring is installed in the second slot; A second connecting ball is mounted on the second compression spring and is slidably disposed in the second slot; The positioning rod is installed on the slide plate. The first moving block and the second moving block are installed on the positioning rod, respectively cooperating with the two driving grooves to realize the movement of the connecting block.

10. The bearing press-fitting device for an angle grinder head shell according to claim 1, characterized in that: Also includes: A material placing rack is used to place bearings. The material placing rack is provided with a through slot, and the locking block can move inside the through slot. A feeding push rod is installed at one end of the unloading rack, and a push plate is installed at the output end of the feeding push rod for pushing the bearing to move in the unloading rack.

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