Forward and reverse adjustment feeding mechanism for bearing rings

Abstract

A forward and reverse adjusting feeding mechanism for bearing rings comprises a main feeding groove, a discharging groove, a forward and reverse detecting device, a first connecting channel and a second connecting channel, the discharging groove is located on one side of a feeding groove and lower than the feeding groove, and the upper end and the lower end of the first connecting channel are connected with a first discharging opening in the tail end of the feeding groove and the discharging groove respectively. At least the inner side wall of the upper section, facing the discharge chute, of the first connecting channel is designed into a first inclined surface which gradually inclines towards the discharge chute from top to bottom; the second connecting channel is located on one side of the feeding groove, the upper end and the lower end of the second connecting channel are connected with a second discharging port of the feeding groove and the discharging groove respectively, and at least the inner side wall of the upper section, facing the feeding groove, of the second connecting channel is designed to be a second inclined face gradually inclining towards the feeding groove side from top to bottom. And the material pulling assembly is used for pushing the bearing ring on the front surface or the back surface on the detection position into the second connecting channel through the second discharge hole. By the adoption of the structure, the bearing rings can advance in the same state, the feeding requirement can be well met, and the overall structure is simpler.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bearing feeding mechanism, specifically refers to a bearing ring's positive and negative adjustment feeding mechanism. BACKGROUND

[0002] Bearing generally includes outer ring, inner ring, steel ball and retainer. In order to facilitate description, the outer ring and inner ring of bearing are simply referred to as bearing ring below. In order to improve production efficiency, at present, in the bearing machining and assembling process, the bearing ring is often automatically conveyed to each station by a feeding mechanism to carry out corresponding operation, and due to the fact that the structures of the two end faces of the bearing ring are usually different, such as when the inner hole of the bearing ring is a taper hole, the hole diameters on the two end faces of the bearing ring will be different. Or a sealing groove is opened on one end face of the bearing ring, and there is no sealing groove on the other end face. That is, the two end faces of the bearing ring are often asymmetric, resulting in the bearing ring having a front face and a back face. Therefore, in the conveying process, some bearing rings have their front faces facing up, and some bearing rings have their back faces facing up. Each station needs the bearing ring to be input in the same state (i.e., all front faces or all back faces), and therefore, the bearing ring needs to be adjusted in terms of front and back during the feeding process to meet the needs of automated production.

[0003] In order to solve the above problems, various bearing ring front and back adjustment feeding mechanisms have appeared at present, such as the "Automatic Bearing Outer Ring Surface Changing Device" with the patent authorization announcement number CN207361268U, which comprises a base, a front-low and rear-high arranged main slide fixed on the base, and a vice slide fixed on the right side of the main slide, an arc plate is arranged between the vice slide and the main slide, a front and back face detection device is arranged on the left side of the main slide, the front and back face detection device comprises a detection head and a linear displacement sensor, a bearing baffle and a jacking plate are inserted into the base plate of the main slide, the jacking plate with an inclined upper end face is connected with a third air cylinder, the bearing baffle is connected with a fourth air cylinder; the jacking plate is located between the detection head and the arc plate. When in use, different reactions are made according to the movement amount of the detection head measured by the linear displacement sensor: when the movement amount of the detection head measured is small, the bearing baffle moves down to let the bearing ring continue to slide forward in the main slide. When the movement amount of the detection head measured is large, the jacking plate moves up to lift the bearing ring and turn it over at the arc plate to the vice slide, and then let the turned-over bearing ring slide into the main slide from the vice slide, finally let all the bearing rings travel in the same state. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a bearing ring front and back adjustment feeding mechanism which can also let the bearing rings travel in the same state, and the overall structure is simpler.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a bearing ring forward and reverse adjustment feeding mechanism, including a worktable, a feeding groove and a discharging groove mounted on the worktable for sliding the bearing ring, and a forward and reverse detection device located above the detection position of the feeding groove for detecting the forward and reverse sides of the bearing ring, characterized in that: the discharging groove is located on one side of the feeding groove and is lower than the feeding groove, and also includes a passage for upright bearing rings to pass through.

[0006] The first connecting channel is located downstream of the first discharge port at the end of the feed trough. The upper and lower ends of the first connecting channel are respectively connected to the first discharge port and the discharge trough. The inner wall of at least the upper section of the first connecting channel facing the discharge trough is designed as a first inclined surface that gradually slopes towards the discharge trough from top to bottom.

[0007] A second connecting channel is located on one side of the aforementioned feed trough. The upper end of the second connecting channel connects to the second outlet of the feed trough, which is located on the side of the feed trough. The lower end of the second connecting channel connects to the aforementioned discharge trough. At least the upper inner wall of the second connecting channel facing the feed trough is designed as a second inclined surface that gradually slopes downwards towards the feed trough.

[0008] The feeding assembly is used to push the front or back bearing ring on the detection position into the second connecting channel through the second discharge port.

[0009] In the above-described scheme, preferably, the material pulling assembly includes a material pulling cylinder, a material pulling seat fixed to the piston rod of the material pulling cylinder, a connecting rod pivotally mounted on the material pulling seat, and three pressure rollers for rolling contact with the bearing ring. One or two of the three pressure rollers are rotatably supported on the material pulling seat, while the remaining pressure rollers are rotatably mounted on one end of the connecting rod. An elastic element is connected to the other end of the connecting rod to ensure that the pressure rollers on the connecting rod always have a tendency to press against the bearing ring. A stop is also provided that cooperates with the other end of the connecting rod. When the bearing ring held by the three pressure rollers moves with the material pulling seat to a position above the second connecting channel, the stop abuts against the other end of the connecting rod, causing the pressure rollers on the connecting rod to release the bearing ring. Using such a material pulling assembly results in flexible, smooth, and reliable operation.

[0010] In the above preferred embodiment, the material pulling seat is also provided with a limiting member that can abut against the connecting rod. The abutment part of the limiting member and the connecting rod is located between the pivot and the elastic member to prevent the three pressure rollers from getting too close to each other and affecting the entry of the bearing ring.

[0011] To facilitate the adjustment of the clamping force of the three pressure rollers, it is preferable that the limiting component is a limiting bolt threaded onto the material pulling seat. By rotating the limiting bolt, the clamping force can be easily adjusted.

[0012] In order to make the whole structure more compact, preferably, the second discharge port corresponds to the detection position on the feeding groove, and the feeding groove is provided with a avoiding channel extending along the movement path of the press wheel for the press wheel to pass through.

[0013] In order to more reliably press the bearing ring, preferably, one end of the connecting rod is rotatably provided with two press wheels.

[0014] Preferably, the elastic member is a tension spring, one end of which is connected to the other end of the connecting rod, and the other end is tied to the material pulling seat.

[0015] Similarly, the stopper is an adjusting bolt threaded on the workbench to adapt to different specifications of the bearing ring.

[0016] In the above-mentioned schemes, in order to conveniently advance the bearing ring in the feeding groove as needed, preferably, the leading end of the feeding groove is vertically connected to the discharge end of the vibration disc for containing the bearing ring, and a pushing cylinder for pushing the bearing ring to the direction of the trailing end of the feeding groove is installed on the workbench at the connection position.

[0017] Compared with the prior art, since the feeding groove and the discharge groove are arranged in a staggered structure, and the first inclined surface on the first connecting channel and the second inclined surface on the second connecting channel are used, when the bearing ring detected by the front-back face detection device is one of the front face and the back face (assuming the front face), the bearing ring with the front face falls into the first connecting channel through the first discharge port, and enters the discharge groove in a vertical state with the front face outwardly formed by the first inclined surface. Once the bearing ring detected by the front-back face detection device is the other of the front face and the back face (assuming the back face), the material pulling assembly acts to make the bearing ring with the back face enter the second connecting channel, and the bearing ring with the back face enters the discharge groove in a vertical state with the front face outwardly formed by the second inclined surface. Therefore, the bearing ring can finally advance in the same state, and the overall structure is simpler, and the feeding demand during automatic batch production can be better met. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional schematic view of the embodiment of the utility model;

[0019] Figure 2 is Figure 1 is another direction three-dimensional schematic view of the embodiment of the utility model;

[0020] Figure 3 is Figure 1 is a partial three-dimensional schematic view of the embodiment of the utility model when the back face bearing ring is located above the second connecting channel after the material pulling cylinder acts;

[0021] Figure 4 is Figure 1the schematic diagram of the positive and negative adjustment of the bearing ring at the detection position from upstream to downstream (i.e. Figure 3 the direction indicated by the arrow in the figure);

[0022] Figure 5 is Figure 3 the schematic diagram of the action of the connecting rod after the pulling cylinder continues to extend. DETAILED DESCRIPTION

[0023] The utility model will be described in further detail below in combination with the embodiments of the drawings.

[0024] In the description of the following embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "axial", "circumferential" 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 convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, since the embodiments disclosed by the utility model can be arranged in different directions, so these terms indicating the direction are only as an illustration and should not be regarded as a limitation, for example, "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more features.

[0025] As Figures 1 to 5 shown, the positive and negative adjustment feeding mechanism of the bearing ring comprises a workbench 1, a feeding groove 2a, a discharging groove 2b, a first connecting channel 3a, a second connecting channel 3b, a pulling assembly 4 and a positive and negative surface detection device 5 for detecting the positive and negative surfaces of the bearing ring 10, wherein the feeding groove 2a is placed on the tabletop of the workbench 1, the leading end of the feeding groove 2a is connected with the discharging end of a vibrating disc 6, the trailing end of the feeding groove 2a is a first discharging port 21a, and a detection position is arranged at the position adjacent to the first discharging port 21a of the feeding groove 2a, and a second discharging port 22a is opened on the side surface of the feeding groove 2a corresponding to the detection position. The bearing ring is contained in the vibrating disc 6, and with the vibration of the vibrating disc 6, the bearing ring on the vibrating disc 6 continuously enters the feeding groove 2a in a flat posture through the discharging end thereof. At this time, in order to improve the production efficiency, the leading end of the feeding groove 2a is vertically connected with the discharging end of the vibrating disc 6 in the embodiment, and a pushing cylinder 7 for pushing the bearing ring to the direction of the trailing end of the feeding groove 2a is arranged on the workbench at the connection position, and by controlling the action of the pushing cylinder 7, the bearing ring can be made to move forward rhythmically as needed.

[0026] The above-mentioned discharging groove 2b is located on one side of the feeding groove 2a, as Figure 1 known from the figure, it is placed on the front side of the feeding groove 2a and is lower than the feeding groove 2a, and the bearing ring in the discharging groove 2b will travel to the next process in an upright state.

[0027] The first connecting channel 3a is located downstream of the first discharge port at the end of the feeding groove 2a, the upper end of the first connecting channel 3a is connected to the first discharge port 21a, and the lower end of the first connecting channel 3a is located above the discharge groove 2b and is connected to the discharge groove 2b, so that the bearing ring falling in the first connecting channel 3a enters the discharge groove 2b, please refer to Figure 4 , and the inner side wall of the first connecting channel 3a facing the discharge groove 2b is designed as a first inclined surface 31a gradually inclined to the discharge groove 2b from top to bottom, which can be arranged only on the upper section of the inner side wall, and in the figure, the first inclined surface 31a extends to the lower end of the first connecting channel 3a.

[0028] The second connecting channel 3b is located on the front side of the feeding groove 2a, that is, Figure 1 The upper end of the second connecting channel 3b is connected to the second discharge port 22a of the feeding groove 2a, and the lower end of the second connecting channel 3b is also located above the discharge groove 2b and is connected to the discharge groove 2b, please refer to Figure 4 , so that the bearing ring falling in the second connecting channel 3b enters the discharge groove 2b, and the inner side wall of the second connecting channel 3b facing the feeding groove 2a is designed as a second inclined surface 31b gradually inclined to the feeding groove 2a from top to bottom, and similarly, the second inclined surface 31b can be arranged only on the upper section of the inner side wall of the second connecting channel 3b, and in the figure, the second inclined surface 31b extends to the lower end of the second connecting channel 3b.

[0029] The pulling assembly 4 is used to push the front or back bearing ring detected by the detection position into the second connecting channel 3b through the second discharging port 22a. The pulling assembly 4 can have various forms. In the embodiment, the second discharging port 22a is located at the detection position, and in order to avoid interference with the front-back detection device 5, the preferred structure is that the pulling assembly 4 comprises a pulling cylinder with a piston rod 41 arranged perpendicularly to the feeding groove 2a, a pulling base 42, a connecting rod 43, three pressing wheels 44 and an elastic member 45. The pulling base 42 is fixed on the piston rod 41 of the pulling cylinder, the middle part of the connecting rod 43 is pivotally arranged on the pulling base 42, the three pressing wheels 44 are used to rollingly contact with the bearing ring, one or two of the three pressing wheels 44 are rotatably supported on the pulling base 42, and one pressing wheel 44 is arranged on the pulling base 42 in the embodiment, and the other two pressing wheels 44 are rotatably arranged on one end of the connecting rod 43. The other end of the connecting rod 43 is connected with the elastic member 45, and the elastic member 45 can always make the pressing wheels 44 on the connecting rod 43 have the tendency of pressing the bearing ring. Specifically, the elastic member 45 is a tension spring, one end of which is connected to the other end of the connecting rod 43, and the other end of which is tied to the pulling base 42. Meanwhile, a stopper 46 matched with the other end of the connecting rod 43 is arranged. The stopper 46 can be arranged on the workbench through the support 11. Specifically, the stopper 46 is an adjusting screw bolt screwed on the workbench. Thus, rotating the adjusting screw bolt can change the length of the adjusting screw bolt, and then the pulling assembly 4 can be adapted to the pulling of bearing rings of different specifications.

[0030] Since the pulling assembly 4 is arranged below the feeding groove 2a, the pressing wheels 44 correspond to the detection position, and need to press the bearing ring in the feeding groove 2a, therefore, the feeding groove 2a needs to be provided with an avoiding channel 23a extending along the movement path of the pressing wheels 44, so that the pressing wheels 44 can pass through the avoiding channel 23a to avoid interference between the pressing wheels 44.

[0031] Thus, with the action of the pulling cylinder, the pulling base 42 and the connecting rod 43 and the three pressing wheels 44 thereon can reciprocate in the direction perpendicular to the feeding groove 2a. When the bearing ring gripped by the three pressing wheels 44 moves with the pulling base 42 to above the second connecting channel 3b, the stopper 46 abuts against the other end of the connecting rod 43 to make the connecting rod 43 rotate, so that the pressing wheels 44 at one end of the connecting rod 43 move away from the bearing ring, and then the pressing wheels 44 release the bearing ring to make the bearing ring fall.

[0032] To prevent the over-rotation of the connecting rod 43 under the action of the tension spring to the extent that the two compression wheels 44 are too close to the compression wheels 44 on the material pulling base 42, causing the bearing ring on the feeding groove 2a to be difficult to enter the area formed by the three compression wheels 44, further, the material pulling base 42 is further provided with a limiting piece 47 capable of abutting against the connecting rod 43, and the abutting position of the limiting piece 47 and the connecting rod 43 is between the pivot and the elastic piece 45. Meanwhile, in order to conveniently adjust the pressing force of the three compression wheels 44 on the bearing ring, preferably, the limiting piece 47 is a limiting bolt threaded on the material pulling base 42, and by rotating the limiting bolt, the length of the limiting bolt extending out is adjusted, thereby conveniently changing the clamping force of the three compression wheels 44.

[0033] Further, in order to ensure the stable movement of the material pulling base 42, a slide rail 48 parallel to the piston rod 41 of the material pulling cylinder is fixed on the material pulling base 42, and a slide base 12 slidingly matched with the slide rail is fixed on the workbench 1.

[0034] The front-back surface detection device 5 is installed on the workbench 1 and located above the detection position, and includes a detection head (not shown in the figure) capable of moving up and down and a linear displacement sensor (not shown in the figure), the linear displacement sensor sends a signal to the controller by knowing the distance of the downward movement of the detection head, and the controller controls the action of each corresponding cylinder. Since it is prior art, it will not be described in detail here.

[0035] In use, the piston rod 41 of the material pulling cylinder is retracted, so that the three compression wheels 44 are located in the circumferential direction of the detection position, and with the vibration of the vibration disc, the bearing rings on the vibration disc enter the first end of the feeding groove 2a in a flat posture from the discharge end thereof in a continuous manner, and then under the action of the piston rod of the material pushing cylinder 7, the bearing rings in the feeding groove 2a are sequentially pushed to the direction of the end of the feeding groove 2a; when the bearing rings in the feeding groove 2a travel to the detection position, the bearing rings overcome the tension spring and enter the area defined by the three compression wheels 44, at this time, the detection head in the front-back surface detection device 5 moves downward, if the detected bearing ring is a front surface, the material pushing cylinder 7 continues to act to push the material, the bearing ring on the detection position is pushed out of the area defined by the three compression wheels by the upstream bearing ring, and still continues to be pushed to the direction of the end of the feeding groove 2a, and finally falls from the first discharge port 21a, at this time, the falling bearing ring will hit the first inclined surface 31a, and then turn to an upright state, please refer to the upper part of the figure in Figure 4 , that is, the change in the first connecting channel 3a to the outside of the front surface Figure 1the second connecting channel 3b, please refer to the lower part of the figure, and under the action of the second inclined surface 31b, the bearing ring with the front face outward (forward in the direction of the arrow) in the upright position falls into the discharge slot 2b. Thus, the purpose of the bearing ring running in the discharge slot 2b in the same state is achieved. Figure 3 , the stopper 46 abuts against the other end of the connecting rod 43, if the pulling cylinder continues to act at this time, the connecting rod 43 will rotate clockwise to overcome the action of the pulling spring, please refer to Figure 5 , so that the pressing wheel 44 on the connecting rod 43 leaves the bearing ring with the reverse face, at this time, the bearing ring with the reverse face falls into the second connecting channel 3b, please refer to Figure 4 the lower part of the figure, and under the action of the second inclined surface 31b, the bearing ring with the front face outward (forward in the direction of the arrow) in the upright position falls into the discharge slot 2b. Thus, the purpose of the bearing ring running in the discharge slot 2b in the same state is achieved. Figure 1

[0036] In addition to the above embodiment, the three pressing wheels 44 can be designed to be downstream of the detection position, at this time, the reverse face detection device 5 is avoided, the pulling seat 42 can be placed above the feeding slot 2a, and the pressing wheel 44 and the connecting rod 43 are installed on the lower bottom surface of the pulling seat 42. Alternatively, the pulling cylinder is directly installed on one side of the feeding slot 2a downstream of the detection position, the piston rod of the pulling cylinder directly pushes the bearing ring with the reverse face into the second connecting channel 3b; or the leading end of the feeding slot 2a can be smoothly connected with the discharge end of the vibrating disc 6, the feeding slot 2a is arranged to be inclined downward from the leading end to the trailing end, the gravity of the bearing ring can be used to make the bearing ring easily slide in the feeding slot 2a, and the bearing ring in the feeding slot 2a can be smoothly forwarded by the mechanical hand. That is, in such a scheme, the above purpose can also be achieved.​

Claims

1. A front-rear adjusting feeding mechanism of a bearing ring, comprising a workbench (1), a feeding groove (2a) and a discharging groove (2b) for sliding of the bearing ring, and a front-rear face detecting device for detecting front and rear faces of the bearing ring above a detecting position of the feeding groove (2a), characterized in that: The discharge chute (2b) is located at one side of the feeding chute (2a) and is lower than the feeding chute (2a), and further comprises a passage for the passing of the upright bearing ring The first connecting channel (3a) is located downstream of the first discharge port (21a) at the end of the feeding chute (2a), the upper and lower ends of the first connecting channel (3a) are connected with the first discharge port (21a) and the discharge chute (2b) respectively, and at least the inner side wall of the upper section of the first connecting channel (3a) towards the discharge chute (2b) is designed as a first inclined surface (31a) gradually inclined from top to bottom towards the discharge chute (2b). The second connecting channel (3b) is located at one side of the feeding chute (2a), the upper end of the second connecting channel (3b) is connected with the second discharge port (22a) of the feeding chute (2a), the second discharge port (22a) is located on the side surface of one side of the feeding chute (2a), the lower end of the second connecting channel (3b) is connected with the discharge chute (2b), and at least the inner side wall of the upper section of the second connecting channel (3b) towards the feeding chute (2a) is designed as a second inclined surface (31b) gradually inclined from top to bottom towards the feeding chute (2a). The pulling assembly (4) is used to push the front or back bearing ring on the detection position into the second connecting channel (3b) through the second discharge port (22a).

2. The bearing ring positive and negative adjustment feeding mechanism according to claim 1, characterized in that: The pulling assembly comprises a pulling cylinder, a pulling seat (42) fixed on the piston rod (41) of the pulling cylinder, a connecting rod (43) pivotally arranged in the middle of the pulling seat (42), and three pressure wheels (44) used for rolling contact with the bearing ring, one or two of the three pressure wheels (44) are rotatably supported on the pulling seat (42), and the remaining pressure wheels (44) are rotatably installed on one end of the connecting rod (43), the other end of the connecting rod (43) is connected with an elastic member (45) which makes the pressure wheels (44) on the connecting rod (43) always have a tendency to press the bearing ring, and a stopper (46) which can cooperate with the other end of the connecting rod (43) is arranged, when the bearing ring clamped by the three pressure wheels (44) moves to the upper side of the second connecting channel (3b) with the pulling seat (42), the stopper (46) abuts against the other end of the connecting rod (43) to make the pressure wheels (44) on the connecting rod (43) release the bearing ring.

3. The bearing ring positive and negative adjustment feeding mechanism according to claim 2, characterized in that: The pulling seat (42) is further provided with a limiting member (47) which abuts against the connecting rod (43), and the abutting position of the limiting member (47) and the connecting rod (43) is between the pivot and the elastic member (45).

4. The bearing ring positive and negative adjustment feeding mechanism according to claim 3, characterized in that: The limiting member (47) is a limiting bolt screwed on the pulling seat (42).

5. The bearing ring positive and negative adjustment feeding mechanism according to claim 2, characterized in that: The second discharge port (22a) corresponds to the detection position on the feeding chute (2a), and the feeding chute (2a) is provided with an avoidance channel (23a) extending along the movement path of the pressure wheel (44) for the passing of the pressure wheel (44).

6. The bearing ring positive and negative adjustment feeding mechanism according to claim 2, characterized in that: Two of the pressure wheels (44) are rotatably installed on one end of the connecting rod (43).

7. The bearing ring positive and negative adjustment feeding mechanism according to claim 2, characterized in that: The elastic member (45) is a tension spring, one end of which is connected to the other end of the connecting rod (43), and the other end of which is tied to the material pulling seat (42).

8. The bearing ring positive and negative adjustment feeding mechanism according to claim 2, characterized in that: The stopper (46) is an adjusting bolt threaded on the workbench.

9. The bearing ring positive and negative adjustment feeding mechanism according to any one of claims 1 to 8, characterized in that: The front end of the feeding groove (2a) is vertically connected to the discharge end of the vibrating disc (5) for containing bearing rings, and a pushing cylinder (7) for pushing the bearing rings to the direction of the end of the feeding groove (2a) is installed on the workbench at the connection position.

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