阅读说明：本技术 微型轴承车削生产线的产品转移机构 (Product transfer mechanism of miniature bearing turning production line ) 是由 俞苗忠 杨永军 张少林 章宝明 于 2020-12-29 设计创作，主要内容包括：本发明公开了微型轴承车削生产线的产品转移机构,所述微型轴承车削生产线包括机床,所述机床上设有进料槽、第一夹具和第二夹具,所述产品转移机构包括进料槽、翻面机构、接送机构、出料机构以及两套分别用于将轴承送入第一夹具和第二夹具的转移机构；本发明通过转移机构实现产品的转移,通过翻面机构和接送机构实现了产品的翻面,基本上实现了车削加工的全称自动化,其自动化程度高、加工效率得到提升。(The invention discloses a product transfer mechanism of a micro bearing turning production line, which comprises a machine tool, wherein a feed chute, a first clamp and a second clamp are arranged on the machine tool, and the product transfer mechanism comprises a feed chute, a turnover mechanism, a receiving and sending mechanism, a discharging mechanism and two transfer mechanisms respectively used for sending a bearing into the first clamp and the second clamp; the invention realizes the transfer of the product through the transfer mechanism, realizes the turnover of the product through the turnover mechanism and the receiving and sending mechanism, basically realizes the full-scale automation of turning, and has high automation degree and improved processing efficiency.)

1. The product transfer mechanism of the miniature bearing turning production line comprises a machine tool, wherein a feed chute, a first clamp and a second clamp are arranged on the machine tool, and the product transfer mechanism is characterized by comprising a feed chute, a turnover mechanism, a receiving and sending mechanism, a discharging mechanism and two sets of transfer mechanisms which are respectively used for sending a bearing into the first clamp and the second clamp;

the turnover mechanism comprises a turnover V-shaped seat which can be lifted and rotated, a limit frame is arranged around the turnover V-shaped seat, and two sides of the limit frame are respectively provided with hollows along the vertical direction;

the receiving and delivering mechanism comprises a receiving and delivering rod which is obliquely arranged, the receiving and delivering rod can slide along the linear direction of the receiving and delivering rod, a receiving fork is arranged on the receiving and delivering rod, and the receiving fork can move a bearing in the first clamp to the turnover mechanism and move the bearing on the turnover mechanism to the transfer mechanism of the second clamp;

the transfer mechanism comprises a pushing mechanism and a manipulator;

the pushing mechanism comprises a storage bin and a pushing rod capable of moving horizontally, a V-shaped groove is formed in the top surface of one end of the pushing rod, and when the V-shaped groove is located right below the storage bin, a bearing in the storage bin falls into the V-shaped groove;

the manipulator comprises a material ejecting mechanism, a product seat capable of moving up and down and a driving mechanism;

the pushing rod horizontally moves to the V-shaped groove to correspond to the ejecting mechanism, the product seat moves upwards to correspond to the V-shaped groove, and the ejecting mechanism pushes the bearing into the product seat;

the product seat can move downwards to correspond to the first clamp or the second clamp, and the driving mechanism can drive the bearing in the product seat into the first clamp or the second clamp.

2. The product transfer mechanism of the micro bearing turning production line as claimed in claim 1, wherein the pushing mechanism further comprises a pushing base, a pushing rail horizontally arranged on a pushing bottom plate, a pushing frame and a pushing cylinder fixedly mounted on the pushing base, the pushing frame can horizontally move along the pushing rail, and an output end of the pushing cylinder is connected with the pushing frame; the push rod is fixedly connected to one side of the push frame.

3. The product transfer mechanism of the micro bearing turning production line as claimed in claim 2, wherein a baffle is arranged on the pushing frame, and the baffle is located above the pushing rod and used for preventing other bearings above from falling when the pushing rod drives the bearing to move horizontally.

4. The product transfer mechanism of the micro bearing turning production line according to claim 1, wherein the manipulator further comprises a manipulator frame body, a manipulator lifting rail vertically arranged on the manipulator frame body, a manipulator lifting frame capable of sliding up and down along the manipulator lifting rail, and a manipulator lifting cylinder for driving the manipulator lifting frame to slide up and down;

the product seat is fixedly connected to the relative bottom of the manipulator lifting frame, and a circular groove matched with the bearing is formed in the product seat.

5. The product transferring mechanism of the micro bearing turning production line according to claim 4, wherein the material ejecting mechanism comprises an ejecting cylinder fixedly arranged on the manipulator frame body and an ejecting plate connected to the output end of the ejecting cylinder.

6. The product transfer mechanism of the micro bearing turning production line as claimed in claim 4, wherein the lowest position of the manipulator lifting frame on the manipulator lifting track is that the product seat corresponds to the first clamp or the second clamp, and the highest position is that the product seat corresponds to the material ejecting mechanism; the output end of the manipulator lifting cylinder is fixedly connected with a connecting rod, a top plate is fixedly arranged at the opposite top of the manipulator lifting frame, a pressing plate capable of sliding up and down is arranged below the top plate in parallel, the connecting rod is movably arranged on the top plate in a penetrating mode, the bottom of the connecting rod is fixedly connected with the pressing plate, a limiting bulge is arranged at the opposite middle of the connecting rod, and the limiting bulge is located below the top plate; the connecting rod is sleeved with a return spring, and two ends of the return spring respectively abut against the upper surface of the pressing plate and the lower surface of the limiting bulge;

the driving mechanism comprises a V-shaped transmission part, a driving rod arranged on the manipulator lifting frame in a pressing and popping mode and a driving head arranged at the end part of the driving rod, and the driving head corresponds to the product seat; the transmission part is rotatably arranged below the pressing plate, one end of the transmission part is obliquely arranged upwards, the other end of the transmission part is obliquely arranged downwards and is provided with a pressing wheel, and the pressing wheel is abutted to the outer surface of the driving rod.

7. The product transferring mechanism of the micro bearing turning production line of claim 1, wherein the turnover mechanism further comprises a turnover frame, a turnover lifting rail vertically arranged on the turnover frame, a turnover base capable of moving up and down along the turnover lifting rail, and a turnover lifting cylinder driving the turnover base to move up and down, the turnover V-shaped seat is rotatably arranged on the turnover base, and a rotating cylinder driving the turnover V-shaped seat to rotate is arranged at the bottom of the turnover base.

8. The product transfer mechanism of the micro bearing turning production line as claimed in claim 1, wherein the pick-up mechanism further comprises a pick-up rail arranged obliquely, a pick-up frame capable of sliding along the pick-up rail, and a pick-up cylinder for driving the pick-up frame to move, and the pick-up rod is mounted on the pick-up frame in a manner of moving back and forth and is parallel to the pick-up rail; the receiving and conveying frame is provided with a receiving cylinder used for driving the receiving and conveying rod to horizontally move back and forth.

9. The product transfer mechanism of the micro bearing turning production line according to claim 1, wherein the discharging mechanism comprises a discharging chute, a discharging rail, a discharging frame capable of moving along the discharging rail, a discharging cylinder driving the discharging frame to move, a discharging rod mounted on the discharging frame in a back-and-forth moving manner, and a discharging rod cylinder driving the discharging rod to move back-and-forth, a discharging fork is arranged at the end of the discharging rod, and the discharging chute is arranged below the discharging fork.

Technical Field

The invention relates to the technical field of bearing processing, in particular to a product transfer mechanism of a micro bearing turning production line.

Background

The miniature bearing is difficult to control in the automatic processing process due to small volume, particularly, the two surfaces of the miniature bearing need to be respectively turned when the miniature bearing is turned, the existing equipment mainly leads the bearing to be respectively cut by the same machine tool by different cutting surfaces, the automation degree is low, and the processing efficiency is low.

The main difficulty of the method is that the turning of the miniature bearing is difficult to realize automation, and a targeted clamp is difficult to design for turning due to small volume and difficult control; on the other hand, the micro-bearing is transferred between the processes in the turning process, such as the transfer from the feed chute to the lathe fixture, the transfer from the lathe fixture to the discharge chute, and the like.

Disclosure of Invention

The invention aims to provide a product transfer mechanism of a micro bearing turning production line, which realizes automatic turning and automatic transfer of a micro bearing in the machining process.

In order to achieve the above purpose, the invention provides the following technical scheme: the product transfer mechanism of the miniature bearing turning production line comprises a machine tool, wherein a feed chute, a first clamp and a second clamp are arranged on the machine tool, and the product transfer mechanism comprises a feed chute, a turnover mechanism, a receiving and sending mechanism, a discharging mechanism and two sets of transfer mechanisms which are respectively used for sending the bearing into the first clamp and the second clamp;

the turnover mechanism comprises a turnover V-shaped seat which can be lifted and rotated, a limit frame is arranged around the turnover V-shaped seat, and two sides of the limit frame are respectively provided with hollows along the vertical direction;

the receiving and delivering mechanism comprises a receiving and delivering rod which is obliquely arranged, the receiving and delivering rod can slide along the linear direction of the receiving and delivering rod, a receiving fork is arranged on the receiving and delivering rod, and the receiving fork can move a bearing in the first clamp to the turnover mechanism and move the bearing on the turnover mechanism to the transfer mechanism of the second clamp;

the transfer mechanism comprises a pushing mechanism and a manipulator;

the pushing mechanism comprises a storage bin and a pushing rod capable of moving horizontally, a V-shaped groove is formed in the top surface of one end of the pushing rod, and when the V-shaped groove is located right below the storage bin, a bearing in the storage bin falls into the V-shaped groove;

the manipulator comprises a material ejecting mechanism, a product seat capable of moving up and down and a driving mechanism;

the pushing rod horizontally moves to the V-shaped groove to correspond to the ejecting mechanism, the product seat moves upwards to correspond to the V-shaped groove, and the ejecting mechanism pushes the bearing into the product seat;

the product seat can move downwards to correspond to the first clamp or the second clamp, and the driving mechanism can drive the bearing in the product seat into the first clamp or the second clamp.

Furthermore, the pushing mechanism also comprises a pushing base, a pushing rail horizontally arranged on the pushing bottom plate, a pushing frame and a pushing cylinder fixedly arranged on the pushing base, the pushing frame can horizontally move along the pushing rail, and the output end of the pushing cylinder is connected with the pushing frame; the push rod is fixedly connected to one side of the push frame.

Furthermore, a baffle is arranged on the pushing frame and positioned above the pushing rod, and the baffle is used for preventing other bearings above from falling when the pushing rod drives the bearing to move horizontally.

The manipulator further comprises a manipulator frame body, a manipulator lifting rail vertically arranged on the manipulator frame body, a manipulator lifting frame capable of sliding up and down along the manipulator lifting rail, and a manipulator lifting cylinder for driving the manipulator lifting frame to slide up and down;

the product seat is fixedly connected to the relative bottom of the manipulator lifting frame, and a circular groove matched with the bearing is formed in the product seat.

Furthermore, the liftout mechanism is including fixed liftout cylinder that sets up on the manipulator support body and the liftout board of connection in liftout cylinder output.

Further, the lowest position of the manipulator lifting frame on the manipulator lifting track is that the product seat corresponds to the first clamp or the second clamp, and the highest position is that the product seat corresponds to the material ejecting mechanism; the output end of the manipulator lifting cylinder is fixedly connected with a connecting rod, a top plate is fixedly arranged at the opposite top of the manipulator lifting frame, a pressing plate capable of sliding up and down is arranged below the top plate in parallel, the connecting rod is movably arranged on the top plate in a penetrating mode, the bottom of the connecting rod is fixedly connected with the pressing plate, a limiting bulge is arranged at the opposite middle of the connecting rod, and the limiting bulge is located below the top plate; the connecting rod is sleeved with a return spring, and two ends of the return spring respectively abut against the upper surface of the pressing plate and the lower surface of the limiting bulge;

the driving mechanism comprises a V-shaped transmission part, a driving rod arranged on the manipulator lifting frame in a pressing and popping mode and a driving head arranged at the end part of the driving rod, and the driving head corresponds to the product seat; the transmission part is rotatably arranged below the pressing plate, one end of the transmission part is obliquely arranged upwards, the other end of the transmission part is obliquely arranged downwards and is provided with a pressing wheel, and the pressing wheel is abutted to the outer surface of the driving rod.

Furthermore, the turn-over mechanism also comprises a turn-over frame, a turn-over lifting track vertically arranged on the turn-over frame, a turn-over base capable of moving up and down along the turn-over lifting track, and a turn-over lifting cylinder for driving the turn-over base to move up and down, wherein the turn-over V-shaped seat is rotatably arranged on the turn-over base, and the bottom of the turn-over base is provided with a rotary cylinder for driving the turn-over V-shaped seat to rotate.

Furthermore, the receiving and delivering mechanism also comprises a receiving and delivering track which is obliquely arranged, a receiving and delivering frame which can slide along the receiving and delivering track and a receiving and delivering cylinder which is used for driving the receiving and delivering frame to move, and the receiving and delivering rod is arranged on the receiving and delivering frame in a back-and-forth movement manner and is parallel to the receiving and delivering track; the receiving and conveying frame is provided with a receiving cylinder used for driving the receiving and conveying rod to horizontally move back and forth.

Furthermore, the discharging mechanism comprises a discharging groove, a discharging rail, a discharging frame capable of moving along the discharging rail, a discharging cylinder for driving the discharging frame to move, a discharging rod arranged on the discharging frame in a back-and-forth moving mode, and a discharging rod cylinder for driving the discharging rod to move back and forth, wherein a discharging fork is arranged at the end part of the discharging rod, and the discharging groove is arranged below the discharging fork.

Compared with the prior art, the invention has the advantages that: the invention realizes the transfer of the product through the transfer mechanism, realizes the turnover of the product through the turnover mechanism and the receiving and sending mechanism, basically realizes the full-scale automation of turning, and has high automation degree and improved processing efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic plan view of the present invention.

FIG. 3 is a schematic view of the structure of the feed chute of the present invention.

Fig. 4 is a schematic view of the structure of the conversion mechanism of the present invention.

Fig. 5 is a schematic structural view of the pushing mechanism in the present invention.

Fig. 6 is a schematic view of the structure of the robot in the present invention.

Fig. 7 is a schematic view of the driving mechanism of the present invention.

Fig. 8 is a schematic structural view of the turn-over mechanism of the present invention.

Fig. 9 is a schematic structural view of the pick-up mechanism of the present invention.

Fig. 10 is a schematic structural view of the discharging mechanism of the present invention.

In the figure: 1. a machine tool 11, a first clamp 12 and a second clamp;

2. a feed chute 22 and a hand wheel;

3. the pushing mechanism 31, the pushing base 32, the storage bin 33, the pushing track 34, the pushing frame 35, the pushing cylinder 36, the baffle plate 37, the pushing rod 38 and the V-shaped groove;

4. the manipulator lifting mechanism comprises a manipulator 41, a manipulator frame body 42, a manipulator lifting rail 43, a manipulator lifting frame 44, a manipulator lifting cylinder 45, a product seat 46, a top plate 47, a pressing plate 48, a return spring 49, a connecting rod 410 and a limiting bulge;

5. the ejection mechanism 51, the ejection cylinder 52 and the ejector plate;

6. the driving mechanism 61, the transmission piece 62, the pressing wheel 63, the driving rod 64, the driving head 65 and the positioning pin;

7. the turnover mechanism comprises a turnover mechanism 71, a turnover frame 72, a turnover lifting rail 73, a turnover lifting cylinder 74, a turnover base 75, a turnover V-shaped seat 76, a limiting frame 77, a rotary cylinder 78 and a hollow part;

8. the receiving and delivering mechanism 81, a receiving and delivering track 82, a receiving and delivering frame 83, a receiving and delivering cylinder 84, a receiving and delivering rod 85, a receiving cylinder 86 and a receiving fork;

9. discharge mechanism, 91, blown down tank, 92, ejection of compact track, 93, play work or material rest, 94, ejection of compact cylinder, 95, discharge bar, 96, discharge bar cylinder, 97, ejection of compact fork.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by way of embodiments in combination with the accompanying drawings.

Example (b): as shown in fig. 1-10, the micro bearing turning production line includes a machine tool 1, the machine tool 1 is respectively provided with a first clamp 11, a second clamp 12, a feeding chute 2, a turnover mechanism 7, a receiving and sending mechanism 8, a discharging mechanism 9, and two sets of transfer mechanisms respectively used for sending the bearing into the first clamp 11 and the second clamp 12, wherein the first clamp 11 and the second clamp 12 are respectively used for clamping and clamping a bearing piece to be machined, so that the machine tool 1 can cut the bearing. Namely, the transfer mechanism of the first clamp 11 transfers the bearing to be machined in the feed chute 2 to the first clamp 11 for one side cutting, then the bearing with one side cut is transferred to the turnover mechanism 7 for turnover through the receiving and sending mechanism 8, then the bearing with turnover is transferred to the transfer mechanism of the second clamp 12 through the receiving and sending mechanism 8, then the bearing is transferred to the second clamp 12 through the transfer mechanism of the second clamp 12 for cutting the other side, and finally the bearing with double-side cut is discharged through the discharging mechanism 9.

The feeding groove 2 is obliquely arranged on one side of the machine tool 1, and a bearing to be machined enters from the feeding side of the feeding groove 2 and slides to the inner side. The width of the feed chute 2 is adjustable so as to be suitable for machining of bearings of different sizes, and specifically, a side baffle of the feed chute 2 can be manually adjusted in position through a hand wheel 21.

The transfer mechanism comprises a pushing mechanism 3 and a mechanical arm 4, and the bearing to be machined is sent into the first clamp 11 or the second clamp 12 through the mutual matching of the pushing mechanism 3 and the mechanical arm 4.

The pushing mechanism 3 comprises a pushing base 31, a storage bin 32, a pushing rail 33, a pushing frame 34, a pushing cylinder 35 and a pushing rod 37, wherein the pushing base 31 is fixedly arranged on the machine tool 1, the storage bin 32 is fixedly arranged on the pushing base 31, and the storage bin 32 is a cavity with an upper opening and a lower opening and is used for storing a bearing to be processed; the pushing rail 33 is horizontally arranged on the upper surface of the pushing base 31, the pushing frame 34 is arranged on the pushing rail 33 and can slide along the pushing rail 33, the pushing cylinder 35 is fixedly arranged on the pushing base 31, and the output end of the pushing cylinder 35 is fixedly connected with the pushing frame 34; the pushing rod 37 is fixedly connected to one side of the pushing frame 34, and the top surface of the end part of the pushing rod 37 is provided with a V-shaped groove 38; in addition, a baffle 36 is further arranged on the pushing frame 34, the baffle 36 is located above the pushing rod 37, and the vertical distance between the baffle 36 and the bottom of the V-shaped groove 38 is slightly larger than the vertical dimension of the bearing to be processed. The pushing cylinder 35 pushes the pushing frame 34 to slide along the pushing rail 33, so as to drive the pushing rod 37 to move. When the pushing rod 37 is at the initial position, the V-shaped groove 38 on the pushing rod 37 is located right below the storage bin 32, and the first bearing to be machined stored in the storage bin 32 falls into the V-shaped groove 38; when the pushing cylinder 35 works, the bearing in the V-shaped groove 38 is driven to move towards the manipulator 4, and meanwhile, the baffle 36 is inserted between the bearing to be processed in the V-shaped groove 38 and the bearing to be processed above the bearing, that is, when the pushing rod 37 leaves the initial position, the baffle 36 blocks the subsequent bearing to prevent the subsequent bearing from falling off, so as to ensure the normal operation of the process.

The manipulator 4 comprises a material ejecting mechanism 5, a manipulator frame body 41, a manipulator lifting rail 42, a manipulator lifting frame 43, a manipulator lifting cylinder 44, a product seat 45 and a driving mechanism 6, wherein the manipulator frame body 41 is fixedly arranged on the machine tool 1, the material ejecting mechanism 5 consists of a material ejecting cylinder 51 and a material ejecting plate 52 connected to the output end of the material ejecting cylinder 51, and the material ejecting cylinder 51 is arranged on the manipulator frame body 41; the manipulator lifting rail 42 is vertically arranged on the manipulator frame body 41, the manipulator lifting frame 43 is arranged on the manipulator lifting rail 42 and can slide up and down along the manipulator lifting rail 42, and the manipulator lifting cylinder 44 is arranged at the top of the manipulator frame body 41 and is used for driving the manipulator lifting frame 43 to slide up and down; the product seat 45 is fixedly connected to the opposite bottom of the manipulator lifting frame 43, and the product seat 45 is provided with a circular groove matched with the size of the bearing to be processed.

In the structure, a horizontal top plate 46 is fixedly arranged at the relative top of the manipulator lifting frame 43, and a pressing plate 47 capable of vertically sliding up and down is arranged below the top plate 46 in parallel; the output end fixedly connected with connecting rod 49 of manipulator lift cylinder 44, connecting rod 49 activity is worn to locate on roof 46, the bottom and the clamp plate 47 fixed connection of connecting rod 49, the relative middle part of connecting rod 49 is equipped with spacing arch 410, the size of spacing arch 410 is greater than the size of the hole that supplies connecting rod 49 to pass of seting up on roof 46, spacing arch 410 is located roof 46 below, the cover is equipped with reset spring 48 on connecting rod 49, reset spring 48's both ends support respectively at clamp plate 47 upper surface and spacing arch 410 lower surface. The driving mechanism 6 comprises a V-shaped transmission piece 61, a driving rod 63 which is arranged on the manipulator lifting frame 43 in a pressing and popping mode, and a driving head 64 which is arranged at the end part of the driving rod 63, specifically, the driving rod 63 is arranged on the manipulator lifting frame 43 through two positioning pins 64, a gap is reserved between the driving rod 63 and the manipulator lifting frame 43, a spring is sleeved on the positioning pin 64, and two ends of the spring are respectively abutted between the driving rod 63 and the manipulator lifting frame 43; the driving head 64 corresponds to the circular groove of the product seat 45, the transmission piece 61 is rotatably arranged below the pressing plate 47, one end of the transmission piece 61 is obliquely arranged upwards, the other end of the transmission piece 61 is obliquely downwards provided with a pressing wheel 62, and the pressing wheel 62 is abutted to the outer surface of the driving rod 63. When the manipulator lifting cylinder 44 pushes the manipulator lifting frame 43 to move downwards to the limit position, the manipulator lifting frame 43 does not move downwards any more, the manipulator lifting cylinder 44 continues to push downwards to drive the pressing plate 47 to move downwards, the pressing plate 47 abuts against the transmission piece 61 and continues to press downwards to drive the transmission piece 61 to rotate, and then the pressing wheel 62 of the transmission piece 61 applies pressure to the driving rod 63, so that the driving head 64 enters the circular groove of the product seat 45, and therefore the bearing in the product seat 45 is driven out to enter the first clamp 11 or the second clamp 12.

In the above structure, when the manipulator lifting cylinder 44 drives the manipulator lifting frame 43 to move upwards to make it located at the highest position on the manipulator lifting rail 42, the circular groove of the product seat 45 corresponds to the ejector plate 52 of the ejector mechanism 5, and at this time, when the push rod 37 moves to the position where the V-shaped groove 38 corresponds to the circular groove of the product seat 45 and the ejector plate 52 and is located between the two, the ejector plate 52 is pushed by the ejector cylinder 51, and the bearing in the V-shaped groove 38 can be ejected to the circular groove of the product seat 45. The driving head 64 can then act as an outer stop and support to prevent the bearing from falling off the product holder 45.

When the manipulator lifting frame 43 is located at the lowest position on the manipulator lifting rail 42, the circular groove of the product seat 45 corresponds to the first clamp 11 or the second clamp 12, at the moment, the bearing to be machined is driven into the first clamp 11 or the second clamp 12 through the driving mechanism 6, and then the bearing is clamped by the first clamp 11 or the second clamp 12, so that the cutting can be carried out through a machine tool.

In this embodiment, the storage bin 32 of the switching mechanism of the first gripper 11 is located directly below the outlet side of the feed chute 2.

In this embodiment, the turnover mechanism 7 includes a turnover frame 71, a turnover lifting rail 72 vertically disposed on the turnover frame 71, a turnover base 74 capable of moving up and down along the turnover lifting rail 72, a turnover lifting cylinder 73 for driving the turnover base 74 to move up and down, and a turnover V-shaped seat 75 rotatably disposed on the turnover base 74, the turnover frame 71 is fixedly disposed on the machine tool, a rotating cylinder 77 (in other embodiments of the present invention, it may be a rotating motor) for driving the turnover V-shaped seat 75 to rotate is disposed at the bottom of the turnover base 74, the turnover lifting cylinder 73 can drive the turnover V-shaped seat 75 to move up and down, and the rotating cylinder 77 can drive the turnover V-shaped seat 75 to turn over. The periphery of the turnover V-shaped seat 75 is provided with a limiting frame 76, the relative middle parts of the front side and the rear side of the limiting frame 76 are respectively provided with a hollow 78 along the vertical direction, and the top of the hollow 78 is opened.

In this embodiment, the receiving mechanism 8 includes a receiving rail 81 obliquely disposed on the machine tool 1, a receiving frame 82 capable of sliding along the receiving rail 81, a receiving cylinder 83 for driving the receiving frame 82 to move, and a receiving rod 84 connected to the receiving frame 82, where the receiving rod 84 is parallel to the receiving rail 81, the receiving rod 84 is capable of moving along the receiving rail 81 under the operation of the receiving cylinder 83, and the receiving rod 84 is capable of moving back and forth along a direction perpendicular to a vertical plane thereof, specifically, the receiving cylinder 85 is disposed on the receiving frame 82, an output end of the receiving cylinder 85 is connected to the receiving rod 84, and the receiving cylinder 85 can push the receiving rod 84 to move back and forth when operating. The receiving fork 86 is provided inwardly at an end of the receiving lever 84.

In this embodiment, when the inverted V-shaped seat 75 is located at the highest point, the inlets of the storage bins 32 in the transfer mechanisms of the first gripper 11, the inverted V-shaped seat 75 and the second gripper 12 are located substantially on the same line.

The specific working process of the turning-over action and the receiving and sending action is as follows:

firstly, material receiving and sending from a first clamp to a turnover mechanism: when the bearing in the first fixture 11 finishes one-side turning, the receiving rod 84 of the receiving mechanism 8 moves downwards until the receiving fork 86 corresponds to the bearing in the first fixture 11, then the receiving cylinder 85 moves inwards to insert the receiving fork 86 into the middle of the bearing in the first fixture 11, then the first fixture 11 releases the bearing, the bearing in the first fixture 11 falls onto the receiving fork 86, then the receiving cylinder 85 moves reversely to take the bearing in the first fixture 11 out of the first fixture 11, then the receiving cylinder 83 drives the receiving rod 84 to move upwards in an inclined manner until the receiving fork 86 is positioned above the turnover V-shaped seat 75 (the initial position of the turnover V-shaped seat 75 is lowered to the lowest point), then the receiving cylinder 85 moves inwards again to make the bearing on the receiving fork 86 positioned right above the turnover V-shaped seat 75, then the turnover V-shaped seat 75 moves upwards under the drive of the turnover lifting cylinder 73, the bearing on the material receiving fork 86 enters the turnover V-shaped seat 75, then the material receiving cylinder 85 reversely exits, the bearing on the material receiving fork 86 is separated from the material receiving fork 86 and enters the turnover V-shaped seat 75, and then turnover can be completed under the drive of the rotary cylinder 77;

II, material receiving and feeding of a storage bin of a transfer mechanism from the turnover mechanism to the second clamp: after the turn-over mechanism 7 finishes turn-over, the material receiving cylinder 85 moves inwards to enable the material receiving fork 86 to pass through the hollow 78 on the limiting frame 76 to enter the middle of the bearing, then the turn-over V-shaped seat 75 moves downwards under the driving of the turn-over lifting cylinder 73, the bearing which is not supported by the turn-over V-shaped seat 75 falls onto the material receiving fork 76, and the turn-over V-shaped seat 75 continues to move downwards until completely leaving the bearing; then the receiving cylinder 83 drives the receiving rod 84 to move upwards in an inclined manner until the receiving fork 86 is located above the inlet of the storage bin 32 in the transfer mechanism of the second fixture 12, the receiving cylinder 85 moves outwards again, a side plate for blocking a bearing can be arranged on the front side of the inlet of the storage bin 32 in the transfer mechanism of the second fixture 12, and under the blocking of the side plate, the bearing on the receiving fork 86 can fall into the storage bin 32, so that the bearing turning and receiving actions are completed.

The discharging mechanism 9 comprises a discharging groove 91, a discharging rail 92, a discharging frame 93 capable of moving along the discharging rail 92, a discharging cylinder 94 for driving the discharging frame 93 to move, a discharging rod 95 mounted on the discharging frame 93 in a back-and-forth moving mode, and a discharging rod cylinder 96 for driving the discharging rod 95 to move back and forth, wherein the discharging rail 92 is horizontally arranged on the machine tool 1, a discharging fork 97 is arranged at the end part of the discharging rod 95, and the discharging groove 91 is obliquely arranged below the discharging fork 97. The discharging rod 95 is driven to move horizontally by the discharging cylinder 94, and the discharging rod 93 is driven to move transversely back and forth perpendicular to the vertical plane in which the discharging rod is located by the discharging rod cylinder 96. In this embodiment, the bearing turned in the second fixture 12 is transferred to the discharging chute 91 through the discharging fork 97, and the specific action of the discharging mechanism 9 in this embodiment is similar to the action principle of the receiving and delivering mechanism 8, and is not described herein again.

In the initial position of this embodiment, the V-shaped groove 38 of the push rod 37 is located directly below the storage bin 32, and the manipulator crane 43 is located at the highest point. In the embodiment, in specific implementation, a bearing to be machined enters from the feeding chute 2, firstly falls into the storage bin 32 of the switching mechanism of the first fixture 11, and falls into the V-shaped groove 38 of the pushing rod 37, the pushing rod 37 drives a bearing to be pushed between the product seat 45 and the ejector plate 52 of the manipulator, the ejector cylinder 51 acts to eject the bearing into the product seat 45, then the manipulator lifting frame 43 descends to the lowest point, then the bearing is driven into the first fixture 11 by the driving mechanism 6, and the first fixture 11 turns one surface of the bearing after clamping the bearing by the machine tool 1; the bearing which finishes one-side processing is turned over by matching the turning-over mechanism 7 and the receiving and sending mechanism 8 and is moved to the switching mechanism of the second clamp 12, and the switching mechanism of the second clamp 12 has the same working principle as that of the switching mechanism of the first clamp 11; after the second clamp clamps the bearing to finish the processing of the other surface, the material is discharged by the discharging mechanism 9.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.