Workpiece feeding positioning mechanism and lifting device

Abstract

The utility model relates to the technical field of lifting devices, in particular to a workpiece feeding positioning mechanism and a lifting device. Comprising a feeding device, a guide rail, a limiting pile located at a target point, a position sensor, a lifting mechanism used for lifting a workpiece and a first fixing assembly. The wheel set abuts against the guide rail, and the position sensor is arranged on the limiting pile. The clamping mechanism is used for being matched with the limiting pile to clamp the feeding device, the clamping mechanism is in communication connection with the position sensor, and the first fixing assembly is arranged on the chassis. The first fixing assembly is used for fixing the workpiece, after the workpiece is conveyed to a target point, the clamping mechanism fixes the feeding device, namely, the workpiece is accurately fixed to the target point, the lifting mechanism is started to lift the workpiece, the first fixing assembly is loosened, and after the workpiece is lifted, the workpiece can be conveyed to the target point through the clamping mechanism. And the feeding device is returned for next transportation, so that the production takt is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and more specifically, to a workpiece feeding and positioning mechanism and a lifting device. Background Art

[0002] In the automotive industry, it is necessary to accurately position and lift workpieces to a certain height for the assembly of automobiles. Generally, the workpieces are placed on a feeding device, and the feeding device is used to transport the workpieces to a designated position for positioning, and then the workpieces are lifted. Usually, an Automated Guided Vehicle (AGV) with a lifting function is used to realize the docking between the trolley and the workstation, so as to realize the interference avoidance between the bottom of the trolley and the fixed pins of the workstation. However, the AGV of the same specification with a lifting function has a weaker load, and at the same time, the AGV can only return for the next transportation after the workpieces are assembled, resulting in a waste of production rhythm.

[0003] The prior art discloses an intelligent flexible body mixed-flow conveying and positioning system and its positioning method. A lifting mechanism installed on the workstation is used to lift the bracket, replacing the lifting function of the AGV itself. It can improve the lifting load capacity, improve the endurance of the AGV at the same time, and is compatible with conventional AGVs without a lifting function, with a wider range of applications. However, this device uses a lifting mechanism to lift the bracket, and still needs to wait for the workpieces to be assembled. After the bracket is re-matched with the AGV, the AGV can return for the next transportation, resulting in a waste of production rhythm. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency of the waste of production rhythm caused by the lifting mechanism lifting the bracket, and provide a workpiece feeding and positioning mechanism and a lifting device, which can accurately position the workpieces, realize the direct lifting of the workpieces by the lifting mechanism, and shorten the production rhythm.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A workpiece feeding and positioning mechanism includes a feeding device, a guide rail, a limit pile located at the target point, and a position sensor. The feeding device includes a chassis and a wheel set arranged on the chassis. The wheel set abuts against the guide rail, and the position sensor is arranged on the limit pile; it also includes a clamping mechanism for cooperating with the limit pile to clamp the feeding device. The clamping mechanism is arranged on the guide rail, and the clamping mechanism is communicatively connected with the position sensor.

[0007] According to the above technical means, a workpiece feeding and positioning mechanism provided by the utility model has a feeding device traveling on a guide rail. After a position sensor detects that the feeding device has traveled to a target point, a clamping mechanism is activated. The feeding device abuts against a limit pile, and the clamping mechanism and the limit pile cooperate to fix the feeding device at the target point, achieving precise positioning of the feeding device, and thus enabling the workpiece to be precisely positioned at the target point.

[0008] Furthermore, there are two guide rails, and the two guide rails are respectively located on both sides of the feeding device. The wheel set includes two first wheels that respectively roll and abut against the inner sides of the two guide rails, a second wheel that rolls on the ground, and a wheel bracket. Both the first wheel and the second wheel are installed and connected to the chassis through the wheel bracket. By the two first wheels rolling on the inner sides of the guide rails, the left-right direction of the feeding device is restricted, and in cooperation with the clamping mechanism and the limit pile, the front-back direction of the feeding device is restricted, further precisely fixing the feeding device at the target point.

[0009] Furthermore, it further includes an inclined plate located at the target point and a lifting roller for rolling on the inclined plate. The inclined plate is arranged on the guide rail, and the inclined plate gradually slopes upward from the guide rail to the limit pile. The lifting roller is rotatably arranged on the chassis. When reaching the target point, the lifting roller rolls onto the inclined plate, separating the second wheel from the ground, restricting the feeding device in the height direction, and further precisely fixing the feeding device at the target point.

[0010] Furthermore, there are at least four inclined plates and four lifting rollers. The four lifting rollers are respectively located at the four corners of the chassis. The two lifting rollers close to the limit pile are located inside the two lifting rollers away from the limit pile. The four inclined plates are respectively arranged on the guide rail at positions corresponding to the four lifting rollers. By arranging lifting rollers at the four corners of the chassis, the feeding device is stably lifted. By making the two lifting rollers close to the limit pile located inside the two lifting rollers away from the limit pile, it is avoided that the two lifting rollers close to the limit pile separate from the ground when entering the guide rail, enabling the feeding device to stably enter the guide rail.

[0011] Furthermore, the clamping mechanism includes a rotating mechanism and a clamping block. The rotating mechanism is arranged on the guide rail, and the clamping block is connected to the output end of the rotating mechanism. When the feeding device reaches the target point, the rotating mechanism is activated to drive the clamping block to rotate, and the clamping block abuts against the feeding device, cooperating with the limit pile to fix the feeding device.

[0012] A lifting device includes the above-mentioned workpiece feeding and positioning mechanism, a lifting mechanism for lifting the workpiece, and a first fixing component for fixing the workpiece; the first fixing component is arranged on the chassis.

[0013] According to the above technical means, a lifting device provided by the present utility model places a workpiece on a feeding device for transportation, uses a first fixing component to fix the workpiece, and after transporting to the target point, a clamping mechanism fixes the feeding device, that is, accurately fixes the workpiece at the target point. The lifting mechanism is started to lift the workpiece, and the first fixing component is released. After lifting the workpiece, the feeding device can be returned for the next transportation, shortening the production beat.

[0014] Furthermore, there are two groups of the lifting mechanisms, and the two groups of the lifting mechanisms are relatively arranged on both sides of the feeding device. By arranging two groups of the lifting mechanisms, the workpiece can be stably lifted.

[0015] Furthermore, the lifting mechanism includes a lifting mechanism and a first positioning pin located below the workpiece and mating with the pin hole of the workpiece. The first positioning pin is connected to the output end of the lifting mechanism. After the workpiece reaches the target point, the first positioning pin is located below the workpiece. The lifting mechanism is started to insert the first positioning pin into the first positioning hole of the workpiece for pin hole mating, saving the mating time. The first fixing component is released, and the workpiece can be lifted, and at the same time, the workpiece is separated from the feeding device. After lifting the workpiece, the feeding device can be returned for the next transportation, shortening the production beat.

[0016] Furthermore, it further includes a telescopic mechanism whose telescopic direction is towards the feeding device. The telescopic mechanism is connected to the output end of the lifting mechanism, and the first positioning pin is connected to the output end of the telescopic mechanism. By arranging the telescopic mechanism, when the workpiece enters the target point, the telescopic mechanism contracts to avoid interference of the first positioning pin with the movement of the workpiece. After the workpiece reaches the target point, the telescopic mechanism extends to make the first positioning pin located directly below the first positioning hole on the workpiece for pin hole mating. Through the arrangement of the telescopic mechanism, it is also convenient to perform pin hole mating for different workpieces.

[0017] Furthermore, it further includes a flipping mechanism and a second positioning pin. The flipping mechanism is arranged at the output end of the lifting mechanism. The first positioning pin and the second positioning pin have an offset angle and are both arranged at the output end of the flipping mechanism. By arranging the flipping mechanism, when the positioning pin is not needed, the positioning pin is flipped to avoid interference between the positioning pin and the workpiece, so as to be able to lift different workpieces. At the same time, by arranging the second positioning pin, by changing the rotation angle of the flipping mechanism, the first positioning pin or the second positioning pin is located directly below the workpiece for pin hole mating. Thus, by arranging one flipping mechanism, different workpieces can be lifted, saving space and cost.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. A workpiece feeding and positioning mechanism and a lifting device provided by the present utility model. By starting the clamping mechanism, the feeding device is made to abut against the limit pile. The clamping mechanism and the limit pile act together to fix the feeding device at the target point, achieving precise positioning of the feeding device, and thus enabling precise positioning of the workpiece at the target point.

[0020] 2. A workpiece feeding and positioning mechanism and a lifting device provided by the present utility model. The left and right directions of the feeding device are restricted by the rolling of two first wheels inside the guide rail; the front and back directions of the feeding device are restricted in cooperation with the clamping mechanism and the limit pile; meanwhile, by providing lifting rollers and an inclined plate, the feeding device is restricted in the height direction; through positioning in the left and right directions, front and back directions, and up and down directions, the workpiece is precisely positioned at the target point.

[0021] 3. A workpiece feeding and positioning mechanism and a lifting device provided by the present utility model. The workpiece is fixed by using the first fixing component and transported to the target point. Then, the clamping mechanism fixes the feeding device, that is, the workpiece is accurately fixed at the target point. The lifting mechanism is started to lift the workpiece, and the first fixing component is released. After lifting the workpiece, the feeding device can be returned for the next transportation, shortening the production cycle.

[0022] 4. A workpiece feeding and positioning mechanism and a lifting device provided by the present utility model. By providing a flipping mechanism, when the positioning pin is not needed, the positioning pin is flipped to avoid interference between the positioning pin and the workpiece, so that different workpieces can be lifted; meanwhile, by providing a second positioning pin, by changing the rotation angle of the flipping mechanism, the first positioning pin or the second positioning pin is located directly below the workpiece for pin hole matching. Thus, by providing one flipping mechanism, different workpieces can be lifted, saving space and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the first perspective of the workpiece feeding and positioning mechanism of the present utility model;

[0024] Figure 2 is a schematic structural view of the second perspective of the workpiece feeding and positioning mechanism of the present utility model;

[0025] Figure 3 is a schematic structural view of the feeding device in the present utility model;

[0026] Figure 4 is a schematic structural view of the clamping mechanism in the present utility model;

[0027] Figure 5 is a schematic overall structural view of the lifting device of the present utility model;

[0028] Figure 6It is a schematic structural diagram of the lifting mechanism in the present utility model;

[0029] Figure 7 is Figure 6 an enlarged view of part A in

[0030] Among them, the illustration marks are explained as follows: 1. Feeding device; 101. Chassis; 102. Wheel set; 121. First wheel; 122. Second wheel; 123. Wheel bracket; 103. Second fixing component; 104. Pusher; 2. Guide rail; 201. Guide end; 3. Limit pile; 4. Position sensor; 5. Clamping mechanism; 501. Rotating mechanism; 502. Clamping block; 6. Tilt plate; 7. Lifting roller; 8. Lifting mechanism; 801. Lifting and lowering mechanism; 802. First positioning pin; 803. Support platform; 804. Support block; 9. First fixing component; 10. Telescopic mechanism; 11. Flipping mechanism; 12. Second positioning pin; 13. First abutting block; 14. Second abutting block; 15. Support frame. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The present invention will be described in one of the embodiments in conjunction with the specific embodiments. Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation of the present invention; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the actual dimensions of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0032] In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously.

[0033] Embodiment 1

[0034] As Figure 1 and Figure 2 shown, this embodiment provides a workpiece feeding and positioning mechanism, which includes a feeding device 1, a guide rail 2, a limiting pile 3 located at the target point, and a position sensor 4. The feeding device 1 includes a chassis 101 and a wheel set 102 provided on the chassis 101. The wheel set 102 abuts against the guide rail 2. The position sensor 4 is provided on the limiting pile 3. Here, the position sensor 4 can use a distance sensor or a touch sensor, and can use either a contact sensor or a non-contact sensor, as long as it can identify that the feeding device 1 reaches the target point. It also includes a clamping mechanism 5 for cooperating with the limiting pile 3 to clamp the feeding device 1. The clamping mechanism 5 is provided on the guide rail 2, and the clamping mechanism 5 is communicatively connected to the position sensor 4.

[0035] According to the above technical means, for a workpiece feeding and positioning mechanism provided by the present utility model, the feeding device 1 travels on the guide rail 2. After the position sensor 4 detects that the feeding device 1 travels to the target point, the clamping mechanism 5 is started. The feeding device 1 abuts against the limiting pile 3, and the clamping mechanism 5 and the limiting pile 3 jointly act to fix the feeding device 1 at the target point, realizing precise positioning of the feeding device 1, and thus being able to precisely position the workpiece at the target point.

[0036] In this embodiment, a second fixing component 103 for cooperating with the AGV may be further provided on the chassis 101. The second fixing component 103 may be set as a positioning plate with through holes. The moving rod of the AGV is inserted into the through holes of the positioning plate for cooperation, so that the feeding device 1 can be transported by the AGV to achieve unmanned transportation. At the same time, a pusher 104 may also be provided on the chassis 101. The whole feeding device 1 can be easily moved manually through the pusher 104 and the wheel set 102.

[0037] Embodiment 2

[0038] A workpiece feeding and positioning mechanism proposed in this embodiment, on the basis of Embodiment 1, in this embodiment, as Figure 2 and Figure 3 shown, there are two guide rails 2. The two guide rails 2 are respectively located on both sides of the feeding device 1. The wheel set 102 includes two first wheels 121 that respectively roll and abut against the inner sides of the two guide rails 2, a second wheel 122 that rolls on the ground, and a wheel bracket 123. The first wheels 121 and the second wheels 122 are both installed and connected to the chassis 101 through the wheel bracket 123. The first wheels 121 preferably roll horizontally on the inner sides of the guide rails 2. By rolling the two first wheels 121 on the inner sides of the two guide rails 2, the left-right direction of the feeding device 1 is restricted. In cooperation with the clamping mechanism 5 and the limit pile 3, the front-back direction of the feeding device 1 is restricted, and the feeding device 1 is further accurately fixed at the target point.

[0039] It further includes an inclined plate 6 located at the target point and a lifting roller 7 for rolling on the inclined plate 6. The lifting roller 7 is rotatably arranged on the chassis 101. The inclined plate 6 is arranged on the guide rail 2. The inclined plate 6 gradually slopes upward from the guide rail 2 to the limit pile 3, which can facilitate the lifting roller 7 to roll onto the inclined plate 6 when reaching the target point. In this embodiment, the inclined plate 6 is preferably trapezoidal. When the lifting roller 7 rolls onto the inclined plate 6, it stops on the trapezoidal platform, which can support the feeding device 1 and prevent the feeding device 1 from sliding due to gravity. When reaching the target point, the lifting roller 7 rolls onto the inclined plate 6, separating the second wheel 122 from the ground, avoiding the deviation of the workpiece in height caused by the wear of the second wheel 122 after long-term use, and also avoiding the influence of the rolling of the second wheel 122 on the ground on the positioning of the workpiece, restricting the feeding device 1 in the height direction, and further accurately fixing the feeding device 1 at the target point.

[0040] There are at least four inclined plates 6 and lifting rollers 7. The four lifting rollers 7 are respectively located at the four corners of the chassis 101. The two lifting rollers 7 close to the limit post 3 are located inside the two lifting rollers 7 far from the limit post 3. The four inclined plates 6 are respectively arranged on the guide rail 2 at positions corresponding to the four lifting rollers 7. By arranging the lifting rollers 7 at the four corners of the chassis 101, the feeding device 1 is stably lifted. By making the two lifting rollers 7 close to the limit post 3 located inside the two lifting rollers 7 far from the limit post 3, it is avoided that the two lifting rollers 7 close to the limit post 3 are separated from the ground when entering the guide rail 2, and the four lifting rollers 7 roll onto the inclined plates 6 at the same time. After the feeding device 1 can stably enter the guide rail 2, the four corners of the feeding device 1 are lifted simultaneously.

[0041] The left and right directions of the feeding device 1 are restricted by the rolling of the two first wheels 121 inside the guide rail 2; the front and back directions of the feeding device 1 are restricted by the cooperation of the clamping mechanism 5 and the limit post 3; at the same time, by arranging the lifting rollers 7 and the inclined plates 6, the height direction of the feeding device 1 is restricted; through the positioning in the left and right directions, front and back directions and up and down directions, the workpiece is accurately positioned at the target point.

[0042] As Figure 4 shown, the guide rail 2 is provided with a guiding end 201 at the entrance of the feeding device 1, which can facilitate the feeding device 1 to enter the guide rail 2 from the entrance. An optoelectronic sensor can also be arranged at the entrance of the guide rail 2. The optoelectronic sensor is communicatively connected with the position sensor 4. When the optoelectronic sensor detects that the feeding device 1 enters the guide rail 2, the position sensor 4 is started to detect the position of the feeding device 1, avoiding the long-term opening of the position sensor 4 and also being able to avoid misjudgment.

[0043] The position sensor 4 is set as a travel switch. The detection direction of the travel switch faces the feeding device 1. By arranging the travel switch, the communication can be made faster, thereby shortening the production cycle. The limit post 3 is provided with a first abutting block 13, and the feeding device 1 is provided with a second abutting block 14 for abutting against the first abutting block 13. When the feeding device 1 reaches the target point, the feeding device touches the travel switch, and the clamping mechanism 5 is started to clamp the feeding device 1, and the first abutting block 13 abuts against the second abutting block 14 to accurately limit the position of the feeding device 1.

[0044] The clamping mechanism 5 includes a rotating mechanism 501 and a clamping block 502. The rotating mechanism 501 is arranged on the guide rail 2. In this embodiment, the rotating mechanism 501 uses a rotating cylinder, which can shorten the production cycle. The clamping block 502 is connected to the output end of the rotating mechanism 501. When the feeding device 1 reaches the target point, the rotating mechanism 501 is started to drive the clamping block 502 to rotate, and the clamping block 502 abuts against the feeding device 1 to cooperate with the limit post 3 to fix the feeding device 1.

[0045] Example 3

[0046] A lifting device proposed in this embodiment, as Figure 5 shown, includes the workpiece feeding and positioning mechanism provided in Embodiment 1 or Embodiment 2, a lifting mechanism 8 for lifting the workpiece, and a first fixing component 9 for fixing the workpiece; the first fixing component 9 is arranged on the chassis 101.

[0047] According to the above technical means, for a lifting device provided by the present utility model, the workpiece is placed on the feeding device 1 for transportation, and the first fixing component 9 is used to fix the workpiece. In this embodiment, the fixing component 9 includes a fixing plate and fastening bolts. The workpiece is placed on the fixing plate, and the workpiece is fixedly connected to the fixing plate through the fastening bolts. After being transported to the target point, the clamping mechanism 5 fixes the feeding device 1, that is, the workpiece is accurately fixed at the target point. The lifting mechanism 8 is started to lift the workpiece, and the first fixing component 9 is loosened, that is, the fastening bolts are loosened. After the workpiece is lifted, the feeding device 1 can be returned for the next transportation, shortening the production cycle.

[0048] Example 4

[0049] A lifting device proposed in this embodiment, on the basis of Embodiment 3, in this embodiment, as Figure 5 shown, there are two groups of lifting mechanisms 8, and the two groups of lifting mechanisms 8 are relatively arranged on both sides of the feeding device 1. By arranging two groups of lifting mechanisms 8, the workpiece can be stably lifted from both sides of the workpiece.

[0050] As Figure 6As shown, the lifting mechanism 8 includes a lifting mechanism 801 and a first positioning pin 802 located below the workpiece and mating with the pin hole of the workpiece. The first positioning pin 802 is connected to the output end of the lifting mechanism 801. The lifting mechanism 801 includes a fixed frame, a rotating motor, a gear, a rack, and a lifting frame. The fixed frame is located on both sides of the feeding device. The rotating motor is arranged on the fixed frame. The gear is connected to the output end of the rotating motor. The rack is vertically slidably arranged on the fixed frame. The gear is meshed with the rack. The rack is arranged on the lifting frame. A support frame 15 is also provided on the chassis 101. The first fixing assembly 9 is arranged on the support frame 15. The support frame 15 lifts the first fixing assembly 9, that is, lifts the workpiece, facilitating the first positioning pin 802 to be located below the workpiece. After the workpiece reaches the target point, the first positioning pin 802 is located below the workpiece. The lifting mechanism 801 is started to insert the first positioning pin 802 into the first positioning hole of the workpiece for pin hole mating, saving the mating time. That is, the rotating motor is started. The rotating motor drives the gear to rotate. The gear drives the rack to vertically slide on the fixed frame. The rack drives the lifting frame to lift and lower. A support platform 803 is arranged on the lifting frame. The first positioning pin 802 is arranged on the support platform 803. A support block 804 is also arranged on the support platform 803. The workpiece is stably supported by the support block 804 and the first positioning pin 802. The first fixing assembly 9 is loosened, and the workpiece can be lifted. At the same time, the workpiece is separated from the feeding device 1. After the workpiece is lifted, the feeding device 1 can be returned for the next transportation, shortening the production cycle.

[0051] It further includes a telescopic mechanism 10 whose telescopic direction is towards the feeding device 1, that is, the telescopic mechanism 10 telescopically moves horizontally. The telescopic mechanism 10 is connected to the output end of the lifting mechanism 801. The first positioning pin 802 is connected to the output end of the telescopic mechanism 10. The telescopic mechanism 10 includes a cylinder, a support plate, a slider, and a guide rail. The cylinder is arranged on the output end of the lifting mechanism 801, that is, the cylinder is connected to the lifting frame. The support plate is connected to the lifting frame. The support platform 803 is connected to the output end of the cylinder. The slider is arranged at the bottom of the support platform 803. The guide rail is arranged at the top of the support plate. The slider is slidably connected to the guide rail. By setting the telescopic mechanism 10, when the workpiece enters the target point, the telescopic mechanism 10 is contracted, that is, the cylinder is contracted, so that the support platform 803 is contracted, avoiding interference of the first positioning pin 802 with the movement of the workpiece. After the workpiece reaches the target point, the telescopic mechanism 10 is extended, so that the first positioning pin 802 is located directly below the first positioning hole on the workpiece for pin hole mating. Through the setting of the telescopic mechanism 10, the specific position of the first positioning pin 802 in the horizontal direction can be adjusted, thus facilitating pin hole mating for different workpieces.

[0052] As Figure 7As shown in the figure, it further includes a flipping mechanism 11 and a second positioning pin 12. In this embodiment, the flipping mechanism 11 specifically uses a rotary cylinder. The flipping mechanism 11 is provided at the output end of the lifting mechanism 801. The rotary cylinder is connected to the support platform 803. The first positioning pin 802 and the second positioning pin 12 have an offset angle and are both provided at the output end of the flipping mechanism 11. There is a certain included angle between the first positioning pin 802 and the second positioning pin 12. When the rotary cylinder rotates a certain angle, only one positioning pin is vertically upward, that is, only one positioning pin can cooperate with the positioning hole of the workpiece. By setting the flipping mechanism 11, multiple groups of flipping mechanisms 11 and positioning pins can be set on the support platform 803. When the positioning pin is not needed, the positioning pin is flipped to avoid interference between the positioning pin and the workpiece, so that different workpieces can be lifted. At the same time, by setting the second positioning pin 12, by changing the rotation angle of the flipping mechanism 11, the first positioning pin 802 or the second positioning pin 12 is located directly below the workpiece for pin hole matching, so that different workpieces can be lifted by setting one flipping mechanism 11, which can save space and cost.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0054] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A workpiece feeding and positioning mechanism, comprising a feeding device (1), a guide rail (2), a limiting pile (3) located at a target point, and a position sensor (4). The feeding device (1) includes a chassis (101) and a wheel set (102) provided on the chassis (101). The wheel set (102) abuts against the guide rail (2), and the position sensor (4) is provided on the limiting pile (3); characterized in that, Further included is a clamping mechanism (5) for cooperating with the limit pile (3) to clamp the feeding device (1). The clamping mechanism (5) is arranged on the guide rail (2), and the clamping mechanism (5) is communicatively connected with the position sensor (4).

2. The workpiece feeding and positioning mechanism according to claim 1, wherein, There are two guide rails (2), and the two guide rails (2) are respectively located on both sides of the feeding device (1). The wheel set (102) includes two first wheels (121) respectively rolling and abutting against the inner sides of the two guide rails (2), a second wheel (122) rolling on the ground, and a wheel bracket (123). The first wheel (121) and the second wheel (122) are both installed and connected to the chassis (101) through the wheel bracket (123).

3. The workpiece feeding and positioning mechanism according to claim 1, characterized in that, Further included is an inclined plate (6) located at the target point and a lifting roller (7) for rolling on the inclined plate (6). The inclined plate (6) is arranged on the guide rail (2), and the inclined plate (6) is gradually inclined upward from the guide rail (2) to the limit pile (3). The lifting roller (7) is rotatably arranged on the chassis (101).

4. The workpiece feeding and positioning mechanism according to claim 3, characterized in that, There are at least four inclined plates (6) and at least four lifting rollers (7). The four lifting rollers (7) are respectively located at the four corners of the chassis (101). The two lifting rollers (7) close to the limit pile (3) are located inside the two lifting rollers (7) away from the limit pile (3). The four inclined plates (6) are respectively arranged on the guide rail (2) at positions corresponding to the four lifting rollers (7).

5. The workpiece feeding and positioning mechanism according to any one of claims 1 to 4, characterized in that, The clamping mechanism (5) includes a rotating mechanism (501) and a clamping block (502). The rotating mechanism (501) is arranged on the guide rail (2), and the clamping block (502) is connected to the output end of the rotating mechanism (501).

6. A lifting device, characterized in that, Including the workpiece feeding and positioning mechanism according to any one of claims 1 to 5, a lifting mechanism (8) for lifting the workpiece, and a first fixing component (9) for fixing the workpiece; the first fixing component (9) is arranged on the chassis (101).

7. The lifting device according to claim 6, characterized in that, There are two sets of lifting mechanisms (8), and the two sets of lifting mechanisms (8) are oppositely arranged on both sides of the feeding device (1).

8. The lifting device according to claim 7, characterized in that, The lifting mechanism (8) includes a lifting mechanism (801) and a first positioning pin (802) located below the workpiece and mating with the workpiece pin hole. The first positioning pin (802) is connected to the output end of the lifting mechanism (801).

9. The lifting device according to claim 8, characterized in that, Further included is a telescoping mechanism (10) with a telescoping direction towards the feeding device (1). The telescoping mechanism (10) is connected to the output end of the lifting mechanism (801), and the first positioning pin (802) is connected to the output end of the telescoping mechanism (10).

10. The lifting device according to claim 8 or 9, characterized in that, Further included is a flipping mechanism (11) and a second positioning pin (12). The flipping mechanism (11) is arranged at the output end of the lifting mechanism (801). The first positioning pin (802) and the second positioning pin (12) have an offset angle and are both arranged at the output end of the flipping mechanism (11).

Images