Automatic feeding device

Abstract

The utility model relates to an automatic feeding device which comprises a stock bin, a flexible vibration disc, a vacuum adsorption mechanism and a multi-axis robot, the stock bin is used for conveying a plurality of needle-shaped parts to the flexible vibration disc, and the flexible vibration disc is used for vibrating and spreading the needle-shaped parts. The vacuum adsorption mechanism is installed at the tail end of the multi-axis robot, the multi-axis robot is used for driving the vacuum adsorption mechanism to rotate and ascend and descend so as to be close to the needle-shaped parts on the flexible vibration disc, and the vacuum adsorption mechanism is used for adsorbing the needle-shaped parts. Due to the fact that the needle-shaped parts on the flexible vibration disc can be spread out only through slight vibration of the flexible vibration disc, contact friction between the needle-shaped parts and the flexible vibration disc is reduced in the whole process, damage to the surfaces of the needle-shaped parts is small, and meanwhile the needle-shaped part spreading device has the advantage of being low in noise. In addition, the stock bin and the flexible vibration disc can be compatible with needle-shaped parts of various sizes and specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to nonstandard automation technical field especially, relates to a kind of automatic feeding device. BACKGROUND

[0002] In the field of automated assembly, pin-shaped pins are widely used in electronic, mechanical, medical equipment and other industries as precision connecting parts. The traditional feeding method usually uses a combination of a circular vibration tray and a straight vibration tray. The pin-shaped pins are arranged in a specific direction by the directional vibration of the circular vibration tray, and then transported to the assembly station by the straight vibration tray.

[0003] The disadvantage of this traditional vibration tray feeding is that the circular vibration tray and the straight vibration tray will continuously rub against the pin-shaped pins. For example, the surface coating of pin-shaped parts with coating will fall off due to excessive friction, which will adversely affect the process. For example, the surface finish of pin-shaped parts with high surface finish requirements will be damaged due to excessive friction, resulting in part failure. In addition, continuous friction will also produce a lot of noise, causing noise pollution in the production site. SUMMARY

[0004] The purpose of the utility model is to provide an automatic feeding device to solve the problem of surface damage to pin-shaped parts and noise pollution caused by traditional vibration tray feeding.

[0005] To achieve the above purpose, the utility model provides an automatic feeding device, which comprises a hopper, a flexible vibration tray, a vacuum suction mechanism and a multi-axis robot. The hopper is used to transport a plurality of pin-shaped parts to the flexible vibration tray. The flexible vibration tray is used to vibrate and spread the pin-shaped parts. The vacuum suction mechanism is installed at the end of the multi-axis robot. The multi-axis robot is used to drive the vacuum suction mechanism to rotate and lift to approach the pin-shaped parts on the flexible vibration tray. The vacuum suction mechanism is used to suck the pin-shaped parts.

[0006] Optionally, the top of the hopper is provided with a feed inlet for the pin-shaped parts to enter. The hopper is built-in with a straight vibration feeder. The feeding disc of the straight vibration feeder extends outward to the upper side of the flexible vibration tray. The straight vibration feeder is used to deliver the pin-shaped parts to the flexible vibration tray.

[0007] Optionally, the feeding disc of the straight vibration feeder extends obliquely downward to the upper side of the flexible vibration tray.

[0008] Optionally, the vacuum suction mechanism comprises a fixed seat and a vacuum suction head. The fixed seat is installed at the end of the multi-axis robot. The vacuum suction head is installed on the fixed seat. The vacuum suction head is provided with a suction cavity for sucking the pin-shaped parts. The suction cavity is connected with a vacuum pumping device.

[0009] Optionally, a side wall of the vacuum suction head is provided with a connecting head, and the suction cavity is connected with the vacuumizing device through the connecting head.

[0010] Optionally, the needle-shaped part comprises a head end and a tail end, the diameter of the head end is larger than that of the tail end, and the suction cavity is used for sucking the tail end.

[0011] Optionally, an industrial camera is further installed on the fixing base, the industrial camera is in communication connection with the multi-axis robot, and the industrial camera is used for shooting the position of the needle-shaped part on the flexible vibration disc and sending to the multi-axis robot.

[0012] Optionally, the vacuum suction head is in floating connection with the fixing base.

[0013] Optionally, the vacuum suction head is vertically arranged, and the vacuum suction mechanism further comprises a linear bearing, a baffle and a spring, the linear bearing is vertically installed on the fixing base, the top end of the vacuum suction head is connected with the baffle after penetrating through the linear bearing, and the spring is sleeved outside the vacuum suction head and connected with the linear bearing and the bottom end of the vacuum suction head at two ends respectively.

[0014] Optionally, the top end of the vacuum suction head is connected with the baffle through a screw.

[0015] In the automatic feeding device, the following effective effects are achieved:

[0016] 1) Since the flexible vibration disc only needs to be slightly vibrated to spread the needle-shaped parts thereon, the contact friction between the needle-shaped parts and the flexible vibration disc is reduced in the whole process, the surface damage of the needle-shaped parts is small, and the device has the advantage of small noise;

[0017] 2) The hopper and the flexible vibration disc can be compatible with needle-shaped parts of multiple specifications, and the time for changing the type is saved.

[0018] 3) The vacuum suction head and the fixing base adopt a floating connection mode, so that the vacuum suction head has a certain elastic floating capacity, and when the vacuum suction head moves and contacts the flexible vibration disc or the needle-shaped parts, hard contact does not occur, and damage to the flexible vibration disc or the needle-shaped parts is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Those skilled in the art should understand that the provided drawings are used to better understand the present application, and do not constitute any limitation on the scope of the present application.

[0020] Figure 1The overall schematic view of the automatic feeding device is provided for an embodiment of the utility model.

[0021] Figure 2 The top view of the automatic feeding device is provided for an embodiment of the utility model.

[0022] Figure 3 The structure schematic view of the vacuum adsorption mechanism is provided for an embodiment of the utility model.

[0023] Figure 4 For Figure 3 The sectional view along the A-A direction.

[0024] Among them:

[0025] 100 - silo; 110 - feed inlet; 120 - feeding tray; 200 - flexible vibration disc; 300 - vacuum adsorption mechanism; 310 - fixed seat; 320 - vacuum adsorption head; 330 - connecting head; 340 - linear bearing; 350 - baffle; 360 - spring; 370 - screw; 400 - multi-axis robot; 500 - needle type part; 600 - industrial camera. DETAILED DESCRIPTION

[0026] In order to make the purpose, advantages and characteristics of the utility model more clear, the utility model is further described in detail below in combination with the drawings and specific embodiments. It should be noted that the drawings are very simplified and all use non-precise proportions, and are only used to facilitate and clearly assist the purpose of explaining the embodiment of the utility model. In order to make the purpose, characteristics and advantages of the utility model more obvious and easy to understand, please refer to the drawings. It should be known that the structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not used to limit the conditions of the implementation of the utility model. Any modification of structure, change of proportion relationship or adjustment of size, in the case of being the same or similar to the effect and purpose that can be produced by the utility model and can be achieved, should still fall within the range that can be covered by the technical content disclosed by the utility model.

[0027] As used in the present application, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in the present application, the term "or" is generally employed in its sense of "and / or" unless the content clearly dictates otherwise. As used in the present application, the term "several" is generally employed in its sense of "at least one" unless the content clearly dictates otherwise. As used in the present application, the term "at least two" is generally employed in its sense of "two or more" unless the content clearly dictates otherwise. In addition, the terms "first," "second," "third," are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an implied indication of the number of technical features indicated. Thus, the features defined with "first," "second," "third" can explicitly or implicitly include one or at least two of the features.

[0028] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0029] Please refer to Figures 1-2 The embodiment provides an automatic feeding device, which comprises a stock bin 100, a flexible vibration disc 200, a vacuum adsorption mechanism 300 and a multi-axis robot 400. The stock bin 100 is used for conveying a plurality of needle-shaped parts 500 to the flexible vibration disc 200. The flexible vibration disc 200 is used for vibrating and spreading the needle-shaped parts 500. The vacuum adsorption mechanism 300 is installed at the end of the multi-axis robot 400. The multi-axis robot 400 is used for driving the vacuum adsorption mechanism 300 to rotate and lift to approach the needle-shaped parts 500 on the flexible vibration disc 200. The vacuum adsorption mechanism 300 is used for adsorbing the needle-shaped parts 500.

[0030] The working principle of the automatic feeding device provided by the embodiment is as follows:

[0031] The needle type parts 500 are conveyed to the flexible vibration disc 200 through the hopper 100, the flexible vibration disc 200 is vibrated and the needle type parts 500 thereon are spread to facilitate material taking, then the vacuum suction mechanism 300 is driven to rotate and lift by the multi-axis robot 400 to approach the needle type parts 500 on the flexible vibration disc 200, finally each needle type part 500 is sucked by the vacuum suction mechanism 300, and the subsequent cooperation of the multi-axis robot 400 and the vacuum suction mechanism 300 can realize the automatic feeding of the needle type parts 500. Since the flexible vibration disc 200 only needs to be slightly vibrated to spread the needle type parts 500 thereon, the whole process reduces the contact friction between the needle type parts 500 and the flexible vibration disc 200, the surface damage of the needle type parts 500 is small, and the noise is small. In addition, the hopper 100 and the flexible vibration disc 200 can be compatible with needle type parts 500 of various sizes.

[0032] Specifically, the top of the hopper 100 is provided with a feeding port 110 for the needle type parts 500 to enter, and the hopper 100 is built-in with a straight vibration feeder, and the feeding disc 120 of the straight vibration feeder extends outward to the upper side of the flexible vibration disc 200, and the straight vibration feeder is used to convey the needle type parts 500 to the flexible vibration disc 200. In this embodiment, the hopper 100 with the straight vibration feeder is a product, and the needle type parts 500 can be sent into the feeding disc 120 in the hopper 100 through the feeding port 110, and the needle type parts 500 on the feeding disc 120 are moved along the feeding disc 120 and conveyed to the flexible vibration disc 200 below by starting the straight vibration feeder.

[0033] In this embodiment, the hopper 100 can be compatible with needle type parts 500 of various sizes, which can save the time of changing types. At the same time, the flexible vibration disc 200 can also be compatible with needle type parts 500 of various sizes, which can automatically spread the needle type parts 500 to facilitate grabbing and save the time of changing types.

[0034] Preferably, the feeding disc 120 of the straight vibration feeder extends obliquely downward to the upper side of the flexible vibration disc 200, that is, the feeding disc 120 is designed to be inclined, so that the needle type parts 500 gradually slide down the slope of the feeding disc 120 to the flexible vibration disc 200, improving the work efficiency.

[0035] Please refer to Figure 3 and Figure 4The vacuum suction mechanism 300 comprises a fixing base 310 and a vacuum suction head 320. The fixing base 310 is installed at the end of the multi-axis robot 400, and the vacuum suction head 320 is installed on the fixing base 310. The vacuum suction head 320 is provided with a suction cavity for sucking the needle-shaped part 500, and the suction cavity is connected with a vacuum pumping device. When the needle-shaped part 500 needs to be sucked, the vacuum pumping device is used to extract the air in the suction cavity to form negative pressure, so that the needle-shaped part 500 is quickly sucked into the suction cavity. As long as the vacuum pumping device continues to work, the sucked needle-shaped part 500 will not fall off.

[0036] In the embodiment, the side wall of the vacuum suction head 320 is provided with a connecting head 330, and the suction cavity is connected with the vacuum pumping device through the connecting head 330.

[0037] In the embodiment, the needle-shaped part 500 comprises a head end and a tail end, and the diameter of the head end is larger than that of the tail end. The suction cavity is used for sucking the tail end. It should be noted that the automatic feeding device provided in the embodiment is compatible with needle-shaped parts 500 of various sizes. As long as the size of the tail end of the needle-shaped part 500 is adapted to the size of the suction cavity, the automatic feeding device can be used.

[0038] Preferably, the fixing base 310 is further provided with an industrial camera 600, which is in communication connection with the multi-axis robot 400. The industrial camera 600 is used to shoot the position of the needle-shaped part 500 on the flexible vibration disc 200 and send it to the multi-axis robot 400. By arranging the industrial camera 600 on the fixing base 310, the camera field of view can be effectively reduced, the recognition accuracy can be improved, and the positions of the needle-shaped parts 500 on the flexible vibration disc 200 can be accurately obtained, so that the multi-axis robot 400 drives the whole vacuum suction mechanism 300 to move, and then quickly sucks the needle-shaped parts 500. In the embodiment, the industrial camera 600 and the multi-axis robot 400 are both prior art. The multi-axis robot 400 is, for example, a four-axis robot, which has three rotational degrees of freedom and one lifting degree of freedom. The present application does not involve the improvement of the internal structure or program, and those skilled in the art should know how to realize the communication connection between the industrial camera 600 and the multi-axis robot 400.

[0039] Preferably, the vacuum suction head 320 and the fixing base 310 are in floating connection. By adopting the floating connection mode, the vacuum suction head 320 has a certain elastic floating ability. When the vacuum suction head 320 moves and contacts the flexible vibration disc 200 or the needle-shaped part 500, hard contact will not occur, thereby avoiding damage to the flexible vibration disc 200 or the needle-shaped part 500.

[0040] Further, the vacuum suction head 320 is arranged vertically, and the vacuum suction mechanism 300 further comprises a linear bearing 340, a baffle 350 and a spring 360, the linear bearing 340 is vertically arranged on the fixed base 310, the top end of the vacuum suction head 320 is connected with the baffle 350 after penetrating through the linear bearing 340, and the spring 360 is sleeved outside the vacuum suction head 320 and connected with the linear bearing 340 and the bottom end of the vacuum suction head 320 respectively. In the embodiment, the linear bearing 340 is sleeved outside the top end of the vacuum suction head 320, and due to the existence of the spring 360, the vacuum suction head 320 can slightly float vertically relative to the linear bearing 340 and can be automatically reset. It should be understood that the outer diameter of the baffle 350 should be greater than the hole diameter of the linear bearing 340, so as to limit the top end of the vacuum suction head 320 and prevent the whole vacuum suction head 320 from falling.

[0041] In the embodiment, the top end of the vacuum suction head 320 is connected with the baffle 350 through a screw 370, and the utility model is not limited to this.

[0042] In conclusion, the utility model provides an automatic feeding device, the flexible vibration disc 200 only needs to be slightly vibrated to spread the needle type parts 500, and the automatic feeding of the needle type parts 500 can be realized through the cooperation of the multi-axis robot 400 and the vacuum suction mechanism 300, the whole process reduces the contact friction between the needle type parts 500 and the flexible vibration disc 200, the surface damage of the needle type parts 500 is small, and the utility model also has the advantages of small noise. In addition, the stock bin 100 and the flexible vibration disc 200 can be compatible with needle type parts 500 of various sizes.

[0043] In addition, it should be recognized that, although the utility model has been disclosed as above with preferred embodiments, the above embodiments are not used to limit the utility model. For any person skilled in the art, many possible changes and modifications or equivalent embodiments of equivalent changes can be made to the technical scheme of the utility model by using the disclosed technical content without departing from the scope of the technical scheme of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical scheme of the utility model, all still belong to the protection scope of the technical scheme of the utility model.

Claims

1. An automatic feeding device, characterized in that, The device includes a hopper, a flexible vibratory feeder, a vacuum adsorption mechanism, and a multi-axis robot. The hopper is used to feed several needle-shaped parts to the flexible vibratory feeder, which is used to vibrate and spread out the needle-shaped parts. The vacuum adsorption mechanism is installed at the end of the multi-axis robot, which is used to drive the vacuum adsorption mechanism to rotate and move up and down to approach the needle-shaped parts on the flexible vibratory feeder. The vacuum adsorption mechanism is used to adsorb the needle-shaped parts.

2. The automatic feeding device according to claim 1, characterized in that, The top of the hopper has an inlet for the needle-shaped parts to enter. The hopper is equipped with a direct vibration feeder. The feed plate of the direct vibration feeder extends outward to the top of the flexible vibrating plate. The direct vibration feeder is used to transport the needle-shaped parts to the flexible vibrating plate.

3. The automatic feeding device according to claim 2, characterized in that, The feed plate of the linear vibrating feeder extends obliquely downward to the top of the flexible vibrating plate.

4. The automatic feeding device according to claim 1, characterized in that, The vacuum adsorption mechanism includes a fixed base and a vacuum adsorption head. The fixed base is installed at the end of the multi-axis robot, and the vacuum adsorption head is installed on the fixed base. The vacuum adsorption head has an adsorption cavity for adsorbing the needle-shaped part, and the adsorption cavity is connected to a vacuum pump.

5. The automatic feeding device according to claim 4, characterized in that, The side wall of the vacuum adsorption head is provided with a connector, and the adsorption chamber is connected to the vacuum pumping device through the connector.

6. The automatic feeding device according to claim 4, characterized in that, The needle-shaped part includes a head end and a tail end, the diameter of the head end being larger than the diameter of the tail end, and the adsorption cavity being used to pick up the tail end.

7. The automatic feeding device according to claim 4, characterized in that, An industrial camera is also mounted on the fixed base. The industrial camera is communicatively connected to the multi-axis robot. The industrial camera is used to capture the position of the needle-shaped parts on the flexible vibrating plate and send the image to the multi-axis robot.

8. The automatic feeding device according to claim 4, characterized in that, The vacuum adsorption head and the fixed base are connected in a floating manner.

9. The automatic feeding device according to claim 8, characterized in that, The vacuum adsorption head is arranged vertically. The vacuum adsorption mechanism also includes a linear bearing, a baffle, and a spring. The linear bearing is installed vertically on the fixed base. The top end of the vacuum adsorption head passes through the linear bearing and is connected to the baffle. The spring is sleeved on the outside of the vacuum adsorption head and its two ends are respectively connected to the linear bearing and the bottom end of the vacuum adsorption head.

10. The automatic feeding device according to claim 9, characterized in that, The top of the vacuum suction head is connected to the baffle by a screw.

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