Automatic feeding and discharging equipment for press fitting of inner rings of automobile hub bearing units

Abstract

The invention discloses automobile hub bearing unit inner ring press-fitting automatic feeding and discharging equipment which comprises a bearing inner flange feeding mechanism, a discharging mechanism, a bearing inner ring feeding mechanism, a grabbing mechanism and a press-fitting mechanism, and the bearing inner flange feeding mechanism and the discharging mechanism are distributed on the two sides of the bearing inner ring feeding mechanism at intervals; the grabbing mechanism is arranged adjacent to the bearing inner flange feeding mechanism, the discharging mechanism and the bearing inner ring feeding mechanism, the grabbing mechanism comprises a first gripper and a second gripper, the press fitting mechanism is arranged adjacent to the grabbing mechanism, the manual feeding and discharging mode is not needed any more, the production efficiency is greatly improved, and the production cost is reduced. In addition, personnel safety accidents are not prone to occurring, and the consistency of products can be kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessory assembly equipment, in particular to an automatic feeding and discharging equipment for pressing assembly of an inner ring of an automobile hub bearing unit. BACKGROUND

[0002] In the conventional pressing assembly of the inner ring of the automobile hub bearing unit, manual feeding and discharging is adopted, i.e., personnel place an inner flange of the automobile hub bearing at a pressing assembly station, then place the inner ring on the upper end of the inner flange, manually start the pressing assembly equipment, take out the finished product after the pressing assembly is completed, and repeat the operation. The existing assembly method completely relies on manual operation, and the feeding and discharging process by personnel is prone to personnel safety accidents and accidents of placing the inner ring upside down.

[0003] Therefore, in order to avoid safety risks and improve the efficiency of the equipment, it is urgent to provide a pressing assembly equipment for the inner ring of the automobile hub bearing unit, which can quickly and accurately perform the pressing assembly. SUMMARY

[0004] The present application aims to provide an automatic feeding and discharging equipment for pressing assembly of the inner ring of the automobile hub bearing unit, which no longer needs to adopt the manual feeding and discharging method, greatly improves the production efficiency, is not prone to personnel safety accidents, and can maintain the consistency of products.

[0005] In order to achieve the above-mentioned purpose, the present application provides an automatic feeding and discharging equipment for pressing assembly of the inner ring of the automobile hub bearing unit, which comprises a bearing inner flange feeding mechanism, a discharging mechanism, a bearing inner ring feeding mechanism, a grabbing mechanism and a pressing assembly mechanism. The bearing inner flange feeding mechanism and the discharging mechanism are distributed on both sides of the bearing inner ring feeding mechanism, the grabbing mechanism is arranged adjacent to the bearing inner flange feeding mechanism, the discharging mechanism and the bearing inner ring feeding mechanism, the grabbing mechanism comprises a first gripper and a second gripper, and the pressing assembly mechanism is arranged adjacent to the grabbing mechanism. The bearing inner flange feeding mechanism transports the bearing inner flange to a position close to the lower side of the first gripper, the bearing inner ring feeding mechanism transports the bearing inner ring to a position close to the lower side of the second gripper, the first gripper grabs the bearing inner flange and places it on the pressing assembly mechanism, the second gripper grabs the bearing inner ring and places it on the bearing inner flange on the pressing assembly mechanism, the pressing assembly mechanism presses the bearing inner flange and the bearing inner ring together to form a workpiece, and the second gripper grabs the workpiece and places it on the discharging mechanism.

[0006] Preferably, the bearing inner flange feeding mechanism comprises a feeding assembly line and a feeding blocking device, and the feeding blocking device is arranged at the middle section of the feeding assembly line.

[0007] Preferably, the upper material blocking device comprises a first mounting plate and a first blocking piece, two ends of the first mounting plate are fixedly installed on two sides of the upper feeding assembly line, the first blocking piece is installed on the top of the first mounting plate, and the first blocking piece can move downward to approach the upper feeding assembly line to block the movement of the inner flange of the bearing.

[0008] Preferably, the upper material blocking device further comprises a first upper material blocking position sensor installed on the first mounting plate.

[0009] Preferably, the lower material blocking device comprises a lower feeding assembly line and a lower material blocking device installed at the lower end of the lower feeding assembly line.

[0010] Preferably, the lower material blocking device comprises a second mounting plate and a second blocking piece, two ends of the second mounting plate are fixedly installed on two sides of the upper feeding assembly line, the second blocking piece is installed on the top of the second mounting plate, and the second blocking piece can move downward to approach the lower feeding assembly line to block the continuous feeding of the workpiece.

[0011] Preferably, the upper material blocking device further comprises a first lower material blocking position sensor installed on the second mounting plate.

[0012] Preferably, the bearing inner ring feeding mechanism comprises an electric rotating platform and a positioning column, and the positioning column is installed on the electric rotating platform.

[0013] Preferably, the automobile hub bearing unit inner ring press-fitting automatic feeding and discharging equipment further comprises a jacking mechanism adjacent to the electric rotating platform, and the jacking mechanism is used to jack the bearing inner ring sleeved on the positioning column to a material taking position of the second gripper.

[0014] Preferably, the press-fitting mechanism comprises a driving piece, a sliding table, and a hydraulic machine, the bottom of the sliding table is provided with a nut matched with a ball screw, the sliding table is slidingly installed on the equipment rack and located below the first gripper and the second gripper, the driving piece is connected with the nut at the bottom of the sliding table through the ball screw, the hydraulic machine is installed above the sliding table, and the driving piece drives the sliding table to move by driving the ball screw to rotate.

[0015] Compared with the prior art, the beneficial effects are as follows: 1) manual feeding and discharging is no longer needed, the automation degree is high, the production efficiency is greatly improved, personnel safety accidents are less likely to occur, the consistency of products can be maintained, and the product quality is improved; 2) sensors are arranged in multiple links to detect whether the measured object accurately reaches the predetermined position, and rapid response can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The perspective view of the automatic feeding and discharging equipment for the inner ring of the automobile hub bearing unit provided by the present application is shown.

[0018] Figure 2 The perspective view of the automatic feeding and discharging equipment for the inner ring of the automobile hub bearing unit provided by the present application is shown.

[0019] The drawings show the following: 1, bearing inner flange feeding mechanism; 11, feeding line; 12, feeding blocking device; 121, first mounting plate; 122, first blocking piece; 123, first feeding blocking position sensor; 2, discharging mechanism; 21, discharging line; 22, discharging blocking device; 221, second mounting plate; 222, second blocking piece; 223, first discharging blocking position sensor; 3, bearing inner ring feeding mechanism; 31, electric rotating platform; 32, positioning column; 4, grabbing mechanism; 41, first gripper; 42, second gripper; 43, linear motor; 44, mounting side plate; 5, pressing mechanism; 51, driving piece; 52, sliding table; 53, hydraulic machine; 54, first material sensor; 55, second material sensor; 6, jacking mechanism; 7, material supporting block; 8, material checking sensor; 9, bearing inner flange; 10, bearing inner ring; 101, equipment rack. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and beneficial technical effects of the present application more clear, the present application will be further described in detail in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described in the present specification are only for the purpose of explaining the present application, and are not intended to limit the present application.

[0021] It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] It also needs to be explained that unless there is an explicit provision and limitation, the terms "installation", "connection", "connection", "fixing", "setting" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the above terms in the present application can be understood according to the specific meaning of the specific circumstances.

[0023] In addition, the terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In addition, the meaning of "multiple", "several" refers to two or more, unless otherwise explicitly specified.

[0024] The following will be described in detail Figure 1 And Figure 2 , a kind of automobile wheel hub bearing unit inner ring press fitting automatic feeding and discharging equipment in the application is introduced in detail, the automobile wheel hub bearing unit inner ring press fitting automatic feeding and discharging equipment includes: bearing inner flange feeding mechanism 1, discharging mechanism 2, bearing inner ring feeding mechanism 3, grabbing mechanism 4 and press fitting mechanism 5, The bearing inner flange feeding mechanism 1 and the discharging mechanism 2 are distributed on the two sides of the bearing inner ring feeding mechanism 3, the grabbing mechanism 4 is arranged adjacent to the bearing inner flange feeding mechanism 1, the discharging mechanism 2 and the bearing inner ring feeding mechanism 3, the grabbing mechanism 4 includes first gripper 41 and second gripper 42, the press fitting mechanism 5 is arranged adjacent to the grabbing mechanism 4, The bearing inner flange feeding mechanism 1 transports the bearing inner flange 9 to the position close to the first gripper 41 directly below, the bearing inner ring feeding mechanism 3 transports the bearing inner ring 10 to the position close to the second gripper 42 directly below, the first gripper 41 grabs the bearing inner flange 9 and places it on the press fitting mechanism 5, the second gripper 42 grabs the bearing inner ring 10 and places it on the bearing inner flange 9 on the press fitting mechanism 5, the press fitting mechanism 5 press fits the bearing inner flange 9 and the bearing inner ring 10 together to form a workpiece, and the second gripper 42 grabs the workpiece and places it on the discharging mechanism 2.

[0025] In the process of pressing, the bearing inner flange feeding mechanism 1 delivers the bearing inner flange 9 to a position close to the position directly below the first gripper 41, the bearing inner ring feeding mechanism 3 delivers the bearing inner ring 10 to a position close to the position directly below the second gripper 42, the first gripper 41 picks up one bearing inner flange at a time and places it on the pressing mechanism 5, the second gripper 42 picks up one bearing inner ring at a time and places it on the bearing inner flange on the pressing mechanism 5, the pressing mechanism 5 presses the bearing inner flange and the bearing inner ring together, the second gripper 42 picks up the workpiece and places it on the discharging mechanism 2, and the discharging mechanism 2 delivers the workpiece to the equipment in the next process to complete the discharging. The above process is repeated.

[0026] In this process, manual feeding and discharging is no longer needed, greatly improving production efficiency and reducing the risk of personnel safety accidents, while maintaining product consistency.

[0027] In a specific embodiment, the bearing inner flange feeding mechanism 1 comprises a feeding line 11 and a feeding blocking device 12, and the feeding blocking device 12 is installed at the middle section of the feeding line 11.

[0028] When the feeding blocking device 12 is not started and the bearing inner flange 9 is placed on the feeding line 11, the feeding line 11 normally delivers the bearing inner flange 9 to a position close to the position directly below the first gripper 41; when the feeding blocking device 12 is started and the bearing inner flange 9 is placed on the feeding line 11, the feeding blocking device 12 will block the first bearing inner flange 9 from moving in the direction close to the first gripper 41 under the delivery of the feeding line 11.

[0029] Specifically, the feeding blocking device 12 comprises a first mounting plate 121 and a first blocking piece 122, the first mounting plate 121 is U-shaped, and the two ends of the first mounting plate 121 are fixedly installed on the two sides of the feeding line 11, and the first blocking piece 122 is installed on the top of the first mounting plate 121, and the first blocking piece 122 can move downward to approach the feeding line 11 to block the bearing inner flange 9 on the feeding line 11 from moving to a position close to the position directly below the first gripper 41.

[0030] Further, the feeding and discharging device further comprises a first feeding blocking position sensor 123 and a second feeding blocking position sensor 124, the first feeding blocking position sensor 123 is installed on the first mounting plate 121, and the second feeding blocking position sensor 124 is installed on the feeding line 11 and is distributed close to the position below the first gripper 41, and the first feeding blocking position sensor 123 and the second feeding blocking position sensor 124 are both used to detect whether there is a bearing inner flange 9 passing through the first mounting plate 121.

[0031] When the feeding line 11 continuously feeds the bearing inner flange, the first bearing inner flange 9 fed first passes the first feeding stop position sensor 123, and then passes the second feeding stop position sensor 124. When the second feeding stop position sensor 124 detects that the bearing inner flange 9 passes the first mounting plate 121, the first gripper 41 picks up the bearing inner flange 9 and places it on the pressing mechanism 5, Meanwhile, during the feeding of the first bearing inner flange to the second feeding stop position 124, the first stop piece 122 is activated and moves downward to approach the feeding line 11 to block the next bearing inner flange 9 on the feeding line 11 from moving to the second feeding stop position sensor 124. In this way, the subsequent bearing inner flange 9 is also blocked when the bearing inner flange 9 is blocked, thereby reserving the gripping time for the first gripper 41.

[0032] When the first gripper 41 finishes gripping, the first stop piece 122 is not activated, so that the next bearing inner flange 9 can move, and the cycle is repeated.

[0033] In a specific embodiment, the discharging mechanism 2 comprises a discharging line 21 and a discharging stop device 22, which is arranged at the discharging end of the discharging line 21 (i.e., the end of the discharging line 21 away from the second gripper 42).

[0034] When the discharging stop device 22 is not activated, the discharging line 21 normally feeds the workpiece to the discharging end when the workpiece is placed on the discharging line 21. When the discharging stop device 22 is activated, the discharging stop device 22 blocks the first discharged workpiece when the workpiece is placed on the discharging line 21, so that the workpiece cannot be discharged. At this time, the first gripper 41, the second gripper 42, and the pressing mechanism 5 are all paused.

[0035] Specifically, the discharging stop device 22 comprises a second mounting plate 221 and a second stop piece 222. The second mounting plate 221 is in the shape of a U, and the two ends of the second mounting plate 221 are fixedly installed on the two sides of the feeding line 11. The second stop piece 222 is arranged on the top of the second mounting plate 221, and the second stop piece 222 can move downward to approach the discharging line 21 to block the workpiece on the discharging line 21 from being discharged. It should be noted that, in this embodiment, the first stop piece 122 and the second stop piece 222 can be air cylinders.

[0036] Further, the feeding and discharging device further comprises a first discharging blocking position sensor 223 and a second discharging blocking position sensor 224. The first discharging blocking position sensor 223 is arranged on the second mounting plate 221, and the second discharging blocking position sensor 224 is arranged on the discharging assembly line 21 and located at an end away from the second gripper 42. The first discharging blocking position sensor 223 and the second discharging blocking position sensor 224 are used to detect whether a workpiece passes by. It should be noted that the first feeding blocking position sensor 123, the second feeding blocking position sensor 124, the first discharging blocking position sensor 223 and the second discharging blocking position sensor 224 can be photoelectric sensors, which can detect without contacting the measured object, avoiding damage or pollution of the object, and are suitable for detecting fragile or easily damaged objects.

[0037] When the second gripper 42 places the press-fitted workpieces on the discharging assembly line 21 one by one, the first discharging blocking position sensor 223 detects that the workpieces are placed on the discharging assembly line 21 one by one. When the first workpiece discharged from the second discharging blocking position sensor 224, the second blocking piece 222 does not start. When the next workpiece passes through the second discharging blocking position sensor 224, the second blocking piece 222 starts to move downward to approach the discharging assembly line 21 to block the workpieces on the discharging assembly line 21. Then, under the condition that the next workpiece is blocked, the subsequent workpieces are also blocked, so as to reserve time for the workpieces to flow to the next device.

[0038] The first blocking piece 122 and the second blocking piece 222 can be supplied with gas through a gas pipe with a solenoid valve. The solenoid valve, the first feeding blocking position sensor 123 and the first discharging blocking position sensor 223 are electrically connected to an industrial computer or a control panel through wires. Control instructions and query information can be sent on the industrial computer or the control panel.

[0039] In a specific embodiment, the bearing inner ring feeding mechanism 3 comprises an electric rotating platform 31 and a positioning column 32. The positioning column 32 is fixedly installed on the circular table of the electric rotating platform 31. When the electric rotating platform 31 is powered on and started, the motor of the electric rotating platform 31 drives the circular table to rotate, so that the positioning column 32 on the circular table moves directly below the second gripper 42, facilitating the second gripper 42 to take the workpiece.

[0040] It should be noted that in the present embodiment, the number of the positioning columns 32 is multiple. The multiple positioning columns 32 are uniformly and spacedly distributed on the circular table. A plurality of bearing inner rings 10 (such as Figure 1When the bearing inner ring 10 on a positioning column 32 is taken out, the motor of the electric rotating platform 31 drives the circular platform to rotate, so that the next positioning column 32 on the circular platform moves to the position directly below the second gripper 42, facilitating the second gripper 42 to continue taking out the bearing inner ring.

[0041] In a specific embodiment, the automatic loading and unloading equipment for the press-fitting of the inner ring of the automobile hub bearing unit further comprises a jacking mechanism 6, which is arranged adjacent to the electric rotating platform 31 and is used to jack up the bearing inner ring sleeved on the positioning column 32 to the position for taking out the bearing inner ring by the second gripper 42, facilitating the second gripper 42 to take out the bearing inner ring one by one.

[0042] It should be noted that in the present embodiment, the jacking mechanism 6 can adopt an electric cylinder, which mainly drives the linear lifting movement of the screw rod by the motor. When the motor drives the linear upward movement of the screw rod, the plurality of bearing inner rings sleeved on the single positioning column 32 can be jacked up. When the uppermost bearing inner ring on the positioning column 32 is gradually jacked up to the position close to the bottom of the second gripper 42, the second gripper 42 takes away the uppermost bearing inner ring. Then, the jacking mechanism 6 jacks up the next bearing inner ring to the position for taking out the bearing inner ring by the second gripper 42 (at this time, the next bearing inner ring 10 is at the uppermost position), and the second gripper 42 takes away the next bearing inner ring. In this way, the reciprocating cycle is repeated.

[0043] Further, the automatic loading and unloading equipment for the press-fitting of the inner ring of the automobile hub bearing unit further comprises a material detection sensor 8, which is arranged at the position for taking out the bearing inner ring by the second gripper 42, so as to detect whether the bearing inner ring 10 exists at the position for taking out the bearing inner ring by the second gripper 42. It should be noted that in the present embodiment, the material detection sensor 8 can be a photoelectric sensor.

[0044] The material detection sensor 8 is electrically connected with an industrial computer or a control panel. When the material detection sensor 8 detects that the bearing inner ring 10 exists at the position for taking out the bearing inner ring by the second gripper 42, the industrial computer or the control panel sends a taking-out instruction to the second gripper 42, so that the second gripper 42 moves downward to grab the bearing inner ring 10.

[0045] In a specific embodiment, the material grabbing mechanism 4 further comprises a linear motor 43 and a mounting side plate 44. The linear motor 43 is horizontally mounted above the bearing inner flange feeding mechanism 1, the unloading mechanism 2 and the bearing inner ring feeding mechanism 3. The mounting side plate 44 is slidingly mounted on one side of the linear motor 43. The first gripper 41 and the second gripper 42 are respectively fixed at the two ends of the mounting side plate 44. The linear motor 43 drives the first gripper 41 and the second gripper 42 to move along the horizontal direction through the mounting side plate 44.

[0046] When the first gripper 41 moves to the upper side of the feeding line 11, the second gripper 42 moves to the material taking position of the second gripper 42, and when the first gripper 41 moves to the material taking position of the second gripper 42, the second gripper 42 moves to the upper side of the discharging line 21.

[0047] In a specific embodiment, the press-fitting mechanism 5 comprises a driving member 51, a sliding table 52 and a hydraulic machine 53, the bottom of the sliding table 52 is provided with a nut matched with a ball screw, the sliding table 52 is slidingly installed on the equipment rack 101 and located below the first gripper 41 and the second gripper 42, the driving member 51 is connected with the nut at the bottom of the sliding table 52 through the ball screw, and the hydraulic machine 53 is installed above the sliding table 52, the driving member 51 drives the ball screw to rotate and drives the sliding table 52 to move.

[0048] A first material sensor 54 is arranged below the linear motor 43, when the driving member 51 drives the ball screw to rotate and drives the sliding table 52 to move to the lower side of the linear motor 43, the first gripper 41 takes one bearing inner flange at a time and places it on the sliding table 52 of the press-fitting mechanism 5, and the second gripper 42 takes one bearing inner ring at a time and places it on the bearing inner flange of the sliding table 52. When the first material sensor 54 detects that the sliding table 52 is provided with the bearing inner flange 9 and the bearing inner ring 10, the driving member 51 drives the sliding table 52 to move to the lower side of the hydraulic machine 53.

[0049] A second material sensor 55 is arranged below the hydraulic machine 53, when the driving member 51 drives the sliding table 52 to move to the lower side of the hydraulic machine 53, the second material sensor 55 detects that the sliding table 52 is provided with the bearing inner flange 9 and the bearing inner ring 10, and the hydraulic machine 53 presses the bearing inner flange 9 and the bearing inner ring 10 together to form a workpiece.

[0050] It should be noted that, in the present embodiment, the driving member 51 can be a servo motor, the first material sensor and the second material sensor can be photoelectric sensors, and the servo motor, the first material sensor 54 and the second material sensor 55 are electrically connected with an industrial computer or a control panel through wires.

[0051] When the press-fitting is completed, the second gripper 42 takes the workpiece and places it on the discharging line 21 of the discharging mechanism 2, and the discharging line of the discharging mechanism 2 conveys the workpiece to the equipment of the next process to complete the discharging.

[0052] The application is not limited only to the embodiments described in the specification, and additional advantages and modifications will readily occur to those skilled in the art. The application in its broader aspects is therefore not limited to the specific details, representative apparatus, and illustrative examples shown and described. Accordingly, departures can be made from such details without departing from the spirit or scope of the general concept.

Claims

1. An automatic loading and unloading equipment for press fitting an inner ring of an automobile wheel hub bearing unit, characterized by comprising: The application relates to a bearing inner flange feeding mechanism (1), a discharging mechanism (2), a bearing inner ring feeding mechanism (3), a grabbing mechanism (4) and a pressing mechanism (5), wherein the bearing inner flange feeding mechanism (1) and the discharging mechanism (2) are arranged at the two sides of the bearing inner ring feeding mechanism (3) in a spaced mode, the grabbing mechanism (4) is arranged adjacent to the bearing inner flange feeding mechanism (1), the discharging mechanism (2) and the bearing inner ring feeding mechanism (3), the grabbing mechanism (4) comprises a first grab hand (41) and a second grab hand (42), and the pressing mechanism (5) is arranged adjacent to the grabbing mechanism (4). The bearing inner flange feeding mechanism (1) is used for conveying the bearing inner flange (9) to a position close to the first grab hand (41) directly below, the bearing inner ring feeding mechanism (3) is used for conveying the bearing inner ring (10) to a position close to the second grab hand (42) directly below, the first grab hand (41) is used for grabbing the bearing inner flange (9) and placing the bearing inner flange (9) on the pressing mechanism (5), the second grab hand (42) is used for grabbing the bearing inner ring (10) and placing the bearing inner ring (10) on the bearing inner flange (9) on the pressing mechanism (5), the pressing mechanism (5) is used for pressing the bearing inner flange (9) and the bearing inner ring (10) together to form a workpiece, and the second grab hand (42) is used for grabbing the workpiece and placing the workpiece on the discharging mechanism (2). The bearing inner flange feeding mechanism (1) comprises a feeding assembly line (11) and a feeding blocking device (12), and the feeding blocking device (12) is arranged at the middle section of the feeding assembly line (11).

2. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 1, characterized in that, The feeding blocking device (12) comprises a first mounting plate (121) and a first blocking piece (122), the two ends of the first mounting plate (121) are fixedly installed at the two sides of the feeding assembly line (11), the first blocking piece (122) is arranged at the top of the first mounting plate (121), and the first blocking piece (122) can move downwards to approach the feeding assembly line (11) to block the movement of the bearing inner flange (9).

3. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 2, characterized in that, The feeding and discharging device further comprises a first feeding blocking position sensor (123) arranged on the first mounting plate (121).

4. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 3, characterized in that, The discharging mechanism (2) comprises a discharging assembly line (21) and a discharging blocking device (22), and the discharging blocking device (22) is arranged at the discharging end of the discharging assembly line (21).

5. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 1, characterized in that, The discharging blocking device (22) comprises a second mounting plate (221) and a second blocking piece (222), the two ends of the second mounting plate (221) are fixedly installed at the two sides of the feeding assembly line (11), the second blocking piece (222) is arranged at the top of the second mounting plate (221), and the second blocking piece (222) can move downwards to approach the discharging assembly line (21) to block the continuous discharging of the workpiece.

6. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 5, characterized in that, The feeding and discharging device further comprises a first discharging blocking position sensor (223) arranged on the second mounting plate (221).

7. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 6, characterized in that, ​ 8. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 1, characterized in that, The bearing inner ring feeding mechanism (3) comprises an electric rotating platform (31) and a positioning column (32), and the positioning column (32) is installed on the electric rotating platform (31).

9. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 8, characterized in that, The automobile hub bearing unit inner ring press-fitting automatic feeding and discharging equipment further comprises a jacking mechanism (6) which is arranged adjacent to the electric rotating platform (31), and the jacking mechanism (6) is used for jacking the bearing inner ring sleeved on the positioning column (32) to a material taking position of the second gripper (42).

10. The automatic loading and unloading equipment for press-fitting the inner ring of an automobile hub bearing unit according to claim 1, characterized in that, The press-fitting mechanism (5) comprises a driving member (51), a sliding table (52) and a hydraulic machine (53), the bottom of the sliding table (52) is provided with a nut matched with a ball screw, the sliding table (52) is slidingly installed on the equipment rack (101) and located below the first gripper (41) and the second gripper (42), the driving member (51) is connected with the nut at the bottom of the sliding table (52) through the ball screw, the hydraulic machine (53) is installed above the sliding table (52), and the driving member (51) drives the sliding table (52) to move by driving the ball screw to rotate.

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