An automated riveting machine tool for producing door hanging wheel bearings

Abstract

The present invention relates to the field of bearing production technology, and specifically discloses an automated riveting machine for producing door hanging wheel bearings, comprising an operating platform horizontally placed on the ground, a placing table rotatably installed in the middle position above the operating platform, a longitudinally arranged mounting frame fixedly installed behind the upper surface of the operating platform, a riveting device fixedly installed on the front outer surface of the mounting frame, and four limit blocks equidistantly arranged on the upper surface of the placing table. In the automated riveting machine for producing door hanging wheel bearings, the movable magnetic block intermittently corresponds to the driving magnetic block during the rotation of the placing table. Since the magnetic spacing of the driving magnetic block is opposite, the movable magnetic block drives the connecting rod to slide telescopically relative to the placing table under the action of magnetic adsorption and repulsion. The sliding of the connecting rod cooperates with the vibration spring to make the limit block vibrate back and forth in the sliding groove, vibrating the bearing body that has not been placed into place into place, thereby avoiding damage in the subsequent riveting process.

Description

Technical Field

[0001] The invention relates to the technical field, in particular to an automatic riveting machine tool for producing door hanging wheel bearings. Background Art

[0002] Door pulley bearings are usually used in the sliding system of doors to ensure that the door can move smoothly. They usually include a wheel and a bearing, which can bear the weight of the door and reduce friction. During the production process of door pulley bearings, a riveting device is required to install a shaft on the inner ring of the bearing, which is used to be installed between the door.

[0003] Before riveting, the bearings need to be assembled with the shaft one by one and then placed on the riveting equipment. Manual placement is inefficient and dangerous.

[0004] To solve the above problems, a Chinese patent with authorization announcement number CN107612235B in the prior art discloses a motor end cover bearing press-fitting riveting device, which includes a bearing pre-placement device, a flow plate is provided on the side of the bearing pre-placement device, the flow plate is equipped with a first driving mechanism, an end cover support is provided on the flow plate, and the motor end cover is placed on the end cover support. The bearing pre-placement device includes a first support seat, a bearing slide plate, and a second driving mechanism. The bearing slide plate is fixed above the first support seat, and a first drop groove is formed on the bearing slide plate, which runs through the upper and lower parts, and two limit blocks are provided on the upper side of the bearing slide plate. A bearing push rod is provided on the bearing slide plate, and the bearing push rod is relatively located between the two limit blocks. A bearing guide plate is fixed on the two limit blocks, and the bearing guide plate forms a second drop groove which runs through the upper and lower parts for the bearing to pass through.

[0005] For example, in the prior art, a Chinese patent with announcement number CN102166613A discloses a bearing riveting machine, which drives the lead screw to rotate through a driving device, thereby driving the lead screw nut and the upper pressure sliding plate connected to the lead screw nut to move up and down. For each rotation of the lead screw, the lead screw nut and the upper pressure sliding plate move up or down by one pitch. Since the stroke accuracy of the lead screw is relatively high, the riveting stroke accuracy of this equipment is correspondingly improved. By controlling the number of revolutions of the driving device, the riveting stroke of the equipment can be accurately controlled, and the rotary motion can be converted into linear motion. The pull-out force of the rocker arm bearing after riveting can reach 3500N, which ensures that the rocker arm bearing will not fall off during use and eliminates after-sales quality problems.

[0006] It can be seen from the above materials that in the prior art, the purpose of automated loading and unloading can be achieved through the cooperation between multiple robotic arms. However, in actual use, the robotic arms may not place the bearings in place. If they are not placed in place, subsequent riveting will cause damage to the bearings. Summary of the invention

[0007] The object of the present invention is to provide an automated riveting machine for producing door hanging wheel bearings, so as to solve the problem of damage caused by improper placement and riveting in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: an automated riveting machine tool for producing door hanging wheel bearings, comprising an operating platform horizontally placed on the ground, a placing table rotatably installed in the middle position above the operating platform, and a longitudinally arranged mounting frame fixedly installed behind the upper surface of the operating platform, and further comprising:

[0009] A riveting device is fixedly installed on the outer surface of the front side of the mounting frame, and four limit blocks are arranged at equal intervals on the upper surface of the placement table, and a bearing body that needs to be riveted is placed above the limit blocks, and a sliding structure is formed between the limit blocks and the sliding grooves provided on the upper surface of the placement table, and a vibration mechanism is arranged inside the placement table to drive the limit blocks to vibrate;

[0010] A conveyor belt, a first mechanical arm, a second mechanical arm and a collection box are rotatably installed on the front side above the operating platform, the second mechanical arm and the collection box are located in corresponding positions, and a driving mechanism for driving the conveyor belt to rotate is arranged on the side of the conveyor belt;

[0011] A mounting box fixedly mounted to the operating platform is provided at a hollow position inside the placement table, and a detection camera corresponding to the position of the mounting frame is fixedly mounted on the outer surface of the mounting box;

[0012] A motor-driven grinding roller is rotatably mounted on the upper surface of the operating platform, and the grinding roller spans over the placement table, and a cleaning mechanism for cleaning grinding debris is fixedly mounted on the outer surface of the installation box.

[0013] Preferably, the vibration mechanism comprises a vibration spring fixedly mounted inside the sliding groove, and the vibration spring is fixedly connected to the lower end of the limit block, and a connecting rod is fixedly mounted on the side surface of the lower end of the limit block.

[0014] Preferably, a through-type sliding structure is formed between the connecting rod and the placement table, and a movable magnetic block is fixedly installed on the top end of the connecting rod.

[0015] Preferably, a support plate fixedly mounted to the operating platform is provided on the left side of the placement table, and the support plate is configured as an arc-shaped structure, and a driving magnetic block is fixedly mounted on the inner surface of the support plate.

[0016] Preferably, the driving magnetic blocks are evenly distributed at equal intervals, the magnetic poles of adjacent driving magnetic blocks are opposite, and the height of the driving magnetic blocks is the same as that of the movable magnetic blocks.

[0017] Preferably, the driving mechanism comprises a driving gear rotatably mounted on the upper surface of the operating platform, and the driving gear is meshingly connected with a driven gear fixedly mounted on the side of the placement table.

[0018] Preferably, a driving bevel gear is coaxially fixedly mounted on the upper surface of the driving gear and rotates synchronously therewith, and a driven bevel gear is meshingly connected to the side surface of the driving bevel gear, and the driven bevel gear is fixedly connected to the rotating shaft of the conveyor belt.

[0019] Preferably, the cleaning mechanism comprises a cleaning nozzle and an air blowing air bag installed on the outside of the side of the installation box, and the position of the cleaning nozzle corresponds to the position of the second mechanical arm.

[0020] Preferably, the cleaning nozzle forms a communication structure with the blowing airbag through a connecting pipe fixedly installed therewith, and a pressurizing valve is fixedly installed in the middle position of the connecting pipe.

[0021] Preferably, the inflation airbag and the squeezing balls squeeze each other, and the squeezing balls are fixedly mounted on the inner wall of the placement table, and the squeezing balls are evenly distributed at equal intervals.

[0022] Compared with the prior art, the invention has the following beneficial effects: the automatic riveting machine tool for door hanging wheel bearing production adopts a new structural design, and its specific contents are as follows:

[0023] 1. Use the conveyor belt to transport the bearing body to the loading position, then the first robot arm grabs the bearing body to the limit block above the placement table, and rotates the bearing body to the riveting device position for riveting operation by rotating the placement table. After the riveting is completed, the second robot arm places the completed bearing into the collection box. The overall operation is automated to reduce labor;

[0024] Furthermore, during the rotation of the placement table, the movable magnetic block intermittently corresponds to the driving magnetic block. Since the magnetic intervals of the driving magnetic block are opposite, the movable magnetic block drives the connecting rod to slide and retract relative to the placement table under the action of magnetic adsorption and repulsion. The sliding of the connecting rod cooperates with the vibration spring to make the limit block vibrate back and forth in the sliding groove, thereby vibrating the bearing body that has not been placed into place into place, thereby avoiding damage during the subsequent riveting process.

[0025] 2. Use the motor inside the operating platform to drive the driving gear to rotate. At this time, the driven gear meshing with the driving gear drives the placement table to rotate. During the rotation of the driving gear, the driving bevel gear fixed on its upper surface is driven to rotate synchronously. The meshing between the driving bevel gear and the driven bevel gear is used to drive the conveyor belt to rotate, thereby realizing the linkage between the two.

[0026] 3. After riveting, the bearing body passes under the grinding roller and is polished by the rotating grinding roller to remove burrs. The placement table rotates to drive the squeezing ball inside to move synchronously. The squeezing ball squeezes the air bag, so that the air in the air bag is ejected from the cleaning nozzle through the connecting pipe. Since a pressurized valve is set in the middle of the connecting pipe, the flow rate of the ejected air can be increased to achieve the purpose of cleaning the debris after grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the placement table of the present invention;

[0029] Figure 3 This is a schematic diagram of the support plate structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the cross-sectional structure of the placement table of the present invention;

[0031] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0032] Figure 6 This is a schematic diagram of the meshing relationship between the driving gear and the driven gear of the present invention;

[0033] Figure 7 It is a schematic diagram of the conveyor belt structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the meshing relationship between the driving bevel gear and the driven bevel gear of the present invention;

[0035] Fig. 9 This is a schematic diagram of the installation box structure of the present invention;

[0036] Fig.10 It is a schematic diagram of the cross-sectional structure of the installation box of the present invention.

[0037] In the figure: 1. operating platform; 2. placing table; 3. mounting frame; 4. riveting device; 5. limit block; 6. bearing body; 7. conveyor belt; 8. first mechanical arm; 9. second mechanical arm; 10. collecting box; 11. sliding groove; 12. vibration spring; 13. connecting rod; 14. movable magnetic block; 15. supporting plate; 16. driving magnetic block; 17. driven gear; 18. driving gear; 19. mounting box; 20. detection camera; 21. driving bevel gear; 22. driven bevel gear; 23. grinding roller; 24. cleaning nozzle; 25. air bag; 26. connecting pipe; 27. pressurizing valve; 28. squeezing ball. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1 , Figure 2 and Figure 6-Figure 8 In order to solve the problem that the manual placement of the traditional device is inefficient and dangerous, the present embodiment provides the following technical solutions, which use a mechanical arm to realize automatic loading and unloading, and specifically discloses: an operating platform 1 placed horizontally on the ground, a placing table 2 is rotatably installed at the middle position above the operating platform 1, and a longitudinally arranged mounting frame 3 is fixedly installed at the rear of the upper surface of the operating platform 1, a riveting device 4 is fixedly installed on the front outer surface of the mounting frame 3, and four limit blocks 5 are arranged at equal intervals on the upper surface of the placing table 2, and a bearing body 6 that needs to be riveted is placed above the limit blocks 5, a conveyor belt 7, a first mechanical arm 8, a second mechanical arm 9 and a collection box 10 are rotatably installed on the front side above the operating platform 1, and the second mechanical arm 9 and The position of the collecting box 10 corresponds, and a driving mechanism for driving the conveyor belt 7 is arranged on the side of the conveyor belt 7, the driving mechanism includes a driving gear 18 rotatably mounted on the upper surface of the operating platform 1, and the driving gear 18 is meshingly connected with a driven gear 17 fixedly mounted on the side of the placement table 2, a driving bevel gear 21 that rotates synchronously therewith is coaxially fixedly mounted on the upper surface of the driving gear 18, and a driven bevel gear 22 is meshingly connected to the side of the driving bevel gear 21, and the driven bevel gear 22 is fixedly connected to the rotating shaft of the conveyor belt 7, an installation box 19 fixedly mounted on the operating platform 1 is arranged at a hollow position inside the placement table 2, and a detection camera 20 corresponding to the position of the mounting frame 3 is fixedly mounted on the outer surface of the installation box 19.

[0040] When using the device, first place the bearing body 6 above the conveyor belt 7, then start the first mechanical arm 8, and use the first mechanical arm 8 to place the bearing body 6 above the conveyor belt 7 above the limit block 5 above the placement table 2, then start the motor inside the operating platform 1, use the motor to drive the active gear 18 to rotate, use the meshing transmission between the active gear 18 and the driven gear 17 to rotate the placement table 2, and rotate the bearing body 6 above the placement table 2 to the bottom of the riveting device 4 for riveting operation (before riveting, turn on the detection camera 20, use the detection camera 2 0 detects whether the bearing body 6 is in place. If not, the riveting operation is not performed, and then it rotates to the next station). The driving gear 18 drives the driving bevel gear 21 fixedly installed on its upper surface to rotate during the rotation process. When the driving bevel gear 21 rotates, the driven bevel gear 22 meshing with it is rotated. At this time, the driven bevel gear 22 drives the conveyor belt 7 to rotate, realizing the linkage of the entire device. The riveted bearing body 6 rotates to the position of the second mechanical arm 9, and the second mechanical arm 9 is used to grab the riveted bearing body 6 into the collection box 10.

[0041] Example 2: Please refer to Figure 2-Figure 5 In order to solve the problem of bearing damage caused by improper placement of traditional devices, this embodiment provides the following technical solution, which uses a vibration mechanism to vibrate the limit block 5 to vibrate the bearing that is not placed in place into place, and specifically discloses: a sliding structure is formed between the limit block 5 and the sliding groove 11 opened on the upper surface of the placement table 2, and a vibration mechanism for driving the limit block 5 to vibrate is arranged inside the placement table 2, the vibration mechanism includes a vibration spring 12 fixedly installed inside the sliding groove 11, and the vibration spring 12 is fixedly connected to the lower end of the limit block 5, and a connecting rod 13 is fixedly installed on the side of the lower end of the limit block 5, a through-type sliding structure is formed between the connecting rod 13 and the placement table 2, and a movable magnetic block 14 is fixedly installed on the top of the connecting rod 13, a support plate 15 fixedly installed with the operating platform 1 is arranged on the left side of the placement table 2, and the support plate 15 is arranged in an arc structure, and a driving magnetic block 16 is fixedly installed on the inner surface of the support plate 15, the driving magnetic blocks 16 are evenly distributed at equal intervals, and the magnetic poles of adjacent driving magnetic blocks 16 are opposite, and the height of the driving magnetic block 16 is the same as the height of the movable magnetic block 14.

[0042] When the movable magnetic block 14 rotates to the position corresponding to the support plate 15, the magnetic attraction and repulsion between the movable magnetic block 14 and the driving magnetic block 16 on the inner surface of the support plate 15 is used to drive the movable magnetic block 14 to move (the magnetic poles of two adjacent driving magnetic blocks 16 are opposite), so that the movable magnetic block 14 drives the connecting rod 13 to move telescopically relative to the placement table 2, and the connecting rod 13 is used to drive the limit block 5 to slide in the sliding groove 11, and the vibration spring 12 fixedly installed in the sliding groove 11 is used to make the limit block 5 vibrate back and forth, and under the action of vibration, the bearing body 6 in the limit block 5 that has not been placed in place is placed in place (that is, the rotating shaft that needs to be riveted completely falls into the inner ring of the bearing body 6).

[0043] Example 3: Please refer to Figure 9-10 In order to solve the problem of deburring the bearing after riveting by the traditional device, the present embodiment provides the following technical solution, which uses a grinding roller 23 to grind and deburr the bearing after riveting. Specifically, it discloses that: a motor-driven grinding roller 23 is rotatably installed on the upper surface of the operating platform 1, and the grinding roller 23 spans above the placement table 2, and a cleaning mechanism for cleaning grinding debris is fixedly installed on the outer surface of the installation box 19, and the cleaning mechanism includes a cleaning nozzle 24 and an air blast airbag 25 installed on the outside of the side of the installation box 19, and the position of the cleaning nozzle 24 corresponds to the position of the second robot arm 9. The cleaning nozzle 24 forms a communication structure with the air blast airbag 25 through a connecting pipe 26 fixedly installed therewith, and a pressurizing valve 27 is fixedly installed in the middle position of the connecting pipe 26, and the air blast airbag 25 and the squeezing ball 28 are squeezed against each other, and the squeezing ball 28 is fixedly installed on the inner wall of the placement table 2, and the squeezing balls 28 are evenly distributed at equal intervals.

[0044] The bearing body 6 after riveting is moved to the position corresponding to the second mechanical arm 9 under the rotation of the placement table 2, and then the second mechanical arm 9 is opened to grab the riveted bearing body 6 and collect it in the collection box 10. During this process, the riveted bearing body 6 passes under the grinding roller 23, and the upper surface of the bearing body 6 is grinded by the rotation of the grinding roller 23, so as to achieve the purpose of removing burrs. In the process of rotation of the placement table 2, the squeezing ball 28 fixedly installed on its inner wall is driven to move synchronously. When the squeezing ball 28 moves to the position of contacting the airbag 25, the airbag 25 is squeezed. At this time, the air in the airbag 25 is ejected from the cleaning nozzle 24 through the connecting pipe 26. Since the pressurizing valve 27 is set in the middle position of the connecting pipe 26, the flow rate of the air passing through is increased, so that the airflow ejected from the cleaning nozzle 24 can clean the debris remaining after grinding the surface of the bearing body 6.

[0045] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated riveting machine tool for producing door hanging wheel bearings, comprising an operating platform (1) placed horizontally on the ground, a placing table (2) rotatably mounted in the middle of the upper part of the operating platform (1), and a longitudinally arranged mounting frame (3) fixedly mounted behind the upper surface of the operating platform (1), characterized in that: Also includes: A riveting device (4) is fixedly mounted on the front outer surface of the mounting frame (3), and four limit blocks (5) are arranged at equal intervals on the upper surface of the placement platform (2), and a bearing body (6) to be riveted is placed above the limit blocks (5), a sliding structure is formed between the limit blocks (5) and a sliding groove (11) provided on the upper surface of the placement platform (2), and a vibration mechanism is provided inside the placement platform (2) for driving the limit blocks (5) to vibrate; A conveyor belt (7), a first mechanical arm (8), a second mechanical arm (9) and a collection box (10) are rotatably mounted on the front upper side of the operating platform (1); the second mechanical arm (9) and the collection box (10) are positioned correspondingly, and a driving mechanism for driving the conveyor belt (7) to rotate is arranged on the side thereof; A mounting box (19) fixedly mounted to the operating platform (1) is provided at a hollow position inside the placement table (2), and a detection camera (20) corresponding to the position of the mounting frame (3) is fixedly mounted on the outer surface of the mounting box (19); A motor-driven grinding roller (23) is rotatably mounted on the upper surface of the operating platform (1), and the grinding roller (23) spans above the placement table (2), and a cleaning mechanism for cleaning grinding debris is fixedly mounted on the outer surface of the installation box (19); The vibration mechanism comprises a vibration spring (12) fixedly mounted inside the sliding groove (11), the vibration spring (12) being fixedly connected to the lower end of the limit block (5), and a connecting rod (13) being fixedly mounted on the side surface of the lower end of the limit block (5); A through-type sliding structure is formed between the connecting rod (13) and the placement platform (2), and a movable magnetic block (14) is fixedly mounted on the top of the connecting rod (13); A support plate (15) fixedly mounted to the operating platform (1) is arranged on the left side of the placement table (2), the support plate (15) is arranged in an arc-shaped structure, and a driving magnetic block (16) is fixedly mounted on the inner surface of the support plate (15); The driving magnetic blocks (16) are evenly distributed at equal intervals, the magnetic poles of adjacent driving magnetic blocks (16) are opposite, and the height of the driving magnetic blocks (16) is the same as the height of the movable magnetic blocks (14); The cleaning mechanism comprises a cleaning nozzle (24) and an air blowing bag (25) installed on the outside of the side of the installation box (19), and the position of the cleaning nozzle (24) corresponds to the position of the second mechanical arm (9); The cleaning nozzle (24) forms a communication structure with the airbag (25) via a connecting pipe (26) fixedly mounted thereto, and a pressurizing valve (27) is fixedly mounted in the middle of the connecting pipe (26); The blowing airbag (25) and the squeezing balls (28) squeeze each other, and the squeezing balls (28) are fixedly mounted on the inner wall of the placement table (2), and the squeezing balls (28) are evenly distributed at equal intervals.

2. The automatic riveting machine tool for producing door hanging wheel bearings according to claim 1 is characterized by: The driving mechanism comprises a driving gear (18) rotatably mounted on the upper surface of the operating platform (1), and the driving gear (18) is meshingly connected with a driven gear (17) fixedly mounted on the side of the placement platform (2).

3. The automatic riveting machine tool for producing door hanging wheel bearings according to claim 2 is characterized by: A driving bevel gear (21) is coaxially fixedly mounted on the upper surface of the driving gear (18) and rotates synchronously therewith, and a driven bevel gear (22) is meshingly connected to the side of the driving bevel gear (21), and the driven bevel gear (22) is fixedly connected to the rotating shaft of the conveyor belt (7).

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