Feeding mechanism and feeding device

Abstract

The utility model relates to the technical field of automatic pilot valve assembly, in particular to a feeding mechanism and a feeding device.The feeding mechanism comprises a vibration feeding unit, an overturning unit and a taking and placing unit, the vibration feeding unit is used for conducting vibration feeding on workpieces, the workpieces are sequentially conveyed to the overturning unit in a horizontal state, and the overturning unit is used for overturning the workpieces; the overturning unit is used for sequentially overturning workpieces from a horizontal state to a vertical state, and the taking and placing unit is used for sequentially clamping the workpieces in the vertical state and placing the workpieces in a target position. According to the feeding mechanism, iron cores and springs of pilot valves can be fed, the working efficiency is high, the labor cost is low, and follow-up automatic assembling of the pilot valves is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic assembly of pilot valves, in particular to a feeding mechanism and a feeding device. Background Art

[0002] A pilot valve is a commonly used hydraulic component used to control the opening and closing of other valves in a hydraulic system. It is primarily composed of a valve seat, coil, seal, core, spring, and buckle.

[0003] Existing assembly methods are mostly manual. For example, first place the sealing ring on the valve seat, then place the spring in the groove on the top of the iron core, then place the iron core with the spring on the valve seat, and finally place the coil, and fix the valve seat and coil with a snap. Manual assembly has problems such as low efficiency and high labor costs. Therefore, there is an urgent need for an automated assembly equipment to automatically assemble the pilot valve. In order to achieve automated assembly, it is necessary to load the above components. The existing loading mechanism is inefficient. For example, the components need to be manually stacked and placed on a tray, and then the moving mechanism cooperates with the clamping claws to clamp the components in turn and place them in the target position. Utility Model Content

[0004] In order to solve the technical problems of low efficiency and high labor cost in the feeding mechanism in the prior art, the utility model proposes a feeding mechanism that does not require pre-stacking and traying, reduces labor cost, and has high feeding efficiency. The utility model is particularly suitable for feeding iron cores and springs in pilot valves.

[0005] The technical solution of this utility model:

[0006] A feeding mechanism, comprising:

[0007] A vibration loading unit, which is used to vibrate and load the workpieces, and transport the workpieces to the turning unit in a horizontal state in sequence;

[0008] A turning unit, which is used to turn the workpiece from a horizontal state to a vertical state in sequence;

[0009] The pick-and-place unit is used to sequentially clamp the vertical workpieces and place them at the target position.

[0010] Furthermore, the flipping unit includes a flipping disc and a flipping module. The outer side of the flipping disc is provided with a receiving groove, and the receiving groove is used to receive the workpiece in a horizontal state. The flipping disc is driven by the flipping module to flip the received workpiece to a vertical state.

[0011] Furthermore, the vibration loading unit includes a vibration plate and a conveyor line, and the vibration plate vibrates to convey the workpiece to the flip unit in sequence via the conveyor line; after the flip plate in the flip unit receives the workpiece, a part of the workpiece is located in the receiving groove, and the other part protrudes from the outer side of the flip plate, and the end of the conveyor line is also provided with an avoidance gap for avoiding the other part of the workpiece when the flip plate flips.

[0012] Furthermore, a receiving groove is provided on the outer side of the flip disk. The flip disk is driven by the flip module to rotate forward to flip the horizontal workpiece received by the receiving groove to a vertical state, and is driven by the flip module to reverse and reset to facilitate the receiving groove to receive the next workpiece.

[0013] Furthermore, the flipping unit further includes a first detection sensor for detecting whether the workpiece in a horizontal state is placed in the receiving slot, and further includes a second detection sensor for detecting whether the workpiece in a vertical state is located in the receiving slot.

[0014] Furthermore, the first detection sensor is a photoelectric sensor, and the flip disk is also provided with a corresponding detection hole vertically passing through the receiving slot.

[0015] Furthermore, the pick-and-place unit includes a moving module and a clamping claw, and the clamping claw, driven by the moving module, sequentially clamps the workpieces and places them at the target position.

[0016] Furthermore, the workpiece is an iron core or a spring of a pilot valve.

[0017] Another aspect of the present invention provides a loading device, comprising two loading mechanisms as described in any one of the above items, wherein the first loading mechanism is used to load the iron core of the pilot valve onto a carrier; the second loading mechanism is used to load the spring of the pilot valve into the groove at the top of the iron core on the carrier.

[0018] Furthermore, the carrier can move under the conveyance of the conveying mechanism, thereby receiving the iron core at a target position of the first feeding mechanism and receiving the spring at a target position of the second feeding mechanism.

[0019] After adopting the above technical solution, the feeding mechanism and feeding device provided by the present invention have the following beneficial effects compared with the prior art:

[0020] 1. The utility model provides a feeding mechanism, which sequentially conveys horizontal workpieces such as iron cores or springs to a flip unit by means of vibration feeding, and flips the workpiece to a vertical state by the flip unit. The workpiece in the vertical state is convenient for the clamping mechanism to clamp and is also convenient for subsequent assembly.

[0021] 2. The utility model provides a feeding device, which includes two feeding mechanisms, which respectively feed the iron core and the spring, and can also assemble the iron core and the spring, placing the spring in the groove on the top of the iron core, which is convenient for the subsequent automatic assembly of the pilot valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the feeding mechanism of the present invention from a first viewing angle;

[0023] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0024] Figure 3 This is a schematic structural diagram of the feeding mechanism of the present invention from a second viewing angle;

[0025] Figure 4 for Figure 3 Enlarged view of point B in FIG.

[0026] Figure 5 This is a schematic structural diagram of the flip disk of the present utility model;

[0027] Figure 6 This is a schematic diagram of the assembly of the iron core and spring of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the feeding device of the present utility model.

[0029] in,

[0030] Vibration loading unit 1, vibration plate 11, conveyor line 12, avoidance gap 121; flip unit 2, flip plate 21, receiving slot 211, flip module 22, first detection sensor 23, detection hole 231, second detection sensor 24; pick-and-place unit 3, moving module 31, clamping claw 32; workpiece 4, iron core 41, groove 411, spring 42.

[0031] A first loading mechanism 100 , a second loading mechanism 200 , a conveying mechanism 300 , and a carrier 400 . DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0035] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0036] Example 1:

[0037] like Figure 1-6 As shown, this embodiment provides a loading mechanism suitable for loading the iron core 41 and spring 42 of a pilot valve, facilitating the automated assembly of the pilot valve. Specifically, the loading mechanism includes a vibration loading unit 1, a flipping unit 2, and a pick-and-place unit 3. The vibration loading unit 1 is used to vibrate and load a plurality of workpieces 4, sequentially conveying each workpiece 4 in a horizontal state to the flipping unit 2; the flipping unit 2 is capable of sequentially receiving the workpieces 4 and flipping them from a horizontal state to a vertical state; the pick-and-place unit 3 is used to sequentially clamp the vertical workpieces 4 and place them in the target position.

[0038] Thus, the loading mechanism provided in this embodiment eliminates the need for pre-palletizing workpieces 4. Instead, workpieces 4 are conveyed sequentially via vibration loading, reducing costs and improving efficiency. Furthermore, each workpiece 4 is stably conveyed to the flip unit 2 in a horizontal position, where it is then flipped to a vertical position. The vertical workpiece 4 is easily gripped and facilitates subsequent assembly. For example, the spring 42 can be directly and vertically inserted into the corresponding groove 411 at the top of the core 41.

[0039] like Figure 3-4As shown, the flip unit 2 of this embodiment includes a flip disc 21 and a flip module 22. The flip disc 21 is mounted on the flip module 22. The flip module 22 can be, but is not limited to, a motor or a rotary cylinder, which can drive the flip disc 21 to rotate. The outer side of the flip disc 21 is provided with a receiving groove 211. The receiving groove 211 is adapted to the shape of the workpiece 4. For example, it is a non-through cylindrical groove when adapted to the iron core 41 or the spring 42. In the initial state, the receiving groove 211 is aligned with the output end of the vibrating feeding unit 1 and receives the horizontal workpiece 4. The depth of the receiving groove 211 is less than the height of the workpiece 4, so that a portion of the workpiece 4 is located within the receiving groove 211, while the other portion protrudes from the outer side of the flip disc 21, which facilitates subsequent gripping. The flip module 22 then drives the flip disc 21 to rotate a certain angle (specifically, 90 degrees), flipping the received horizontal workpiece 4 to a vertical state. The pick-and-place unit 3 can then grip the protruding portion of the workpiece 4 for pick-and-place.

[0040] Furthermore, the vibration loading unit 1 of this embodiment includes a vibration disk 11 and a conveyor line 12. The vibration disk 11 conveys the workpiece 4 to the flip unit 2 in sequence through the conveyor line 12 by vibration. A avoidance gap 121 is also provided at the end of the conveyor line 12. Since the flip disk 21 will flip with the workpiece 4 when flipping, and the workpiece 4 has a protruding portion protruding from the outer side of the flip disk 21, the avoidance gap 121 can avoid the protruding portion of the workpiece 4 when the flip disk 21 flips. During the flipping process of the flip disk 21, its outer side contacts the next workpiece 4 on the conveyor line 12 to prevent the next workpiece 4 from falling out. The next workpiece 4 is received only when the receiving slot 211 of the flip disk 21 rotates again to align with the end of the conveyor line 12.

[0041] Preferably, in this embodiment, a receiving groove 211 is provided on the outer side of the flip plate 21, and the flip plate 21 is fed in order by forward and reverse rotation. Specifically, in the initial state, the receiving groove 211 of the flip plate 21 is aligned with the end of the conveyor line 12. After receiving the workpiece 4, the flip plate 21 is driven by the flip module 22 to rotate forward ( Figure 4 The horizontal workpiece 4 received by the receiving slot 211 is flipped to a vertical state by a certain angle in the counterclockwise direction; after the pick-and-place unit 3 takes away the workpiece 4, the flip plate 21 is driven to reverse by the flip module 22 ( Figure 4 The receiving slot 211 is reset at a certain angle (in the clockwise direction) so that the receiving slot 211 is realigned with the end of the conveying line 12 to facilitate receiving the next workpiece 4.

[0042] The flip unit 2 of this embodiment further includes a first detection sensor 23 and a second detection sensor 24. The first detection sensor 23 is used to detect whether the horizontal workpiece 4 has been placed in the receiving slot 211, and the second detection sensor 24 is used to detect whether the vertical workpiece 4 is still located in the receiving slot 211. If the first detection sensor 23 detects that the horizontal workpiece 4 has entered the receiving slot 211, the flip disc 21 is controlled to rotate forward by a certain angle to flip the horizontal workpiece 4 to a vertical position. If the second detection sensor 24 detects that the vertical workpiece 4 has left the receiving slot 211, the flip disc 21 is controlled to rotate backward by a certain angle to reset itself.

[0043] The first detection sensor 23 is preferably a photoelectric sensor, which is installed at the end of the conveyor line 12. A detection hole 231 for allowing light to pass through is also provided on the flip plate 21. The detection hole 231 is arranged parallel to the axis of the flip plate 21 and perpendicularly passes through the receiving slot 211. The second detection sensor 24 is also preferably a photoelectric sensor, which is installed on the side of the flip plate 21. Its light is aimed at the protruding part of the workpiece 4 on the flip plate 21 that has been flipped to a vertical state.

[0044] Furthermore, the pick-and-place unit 3 of this embodiment includes a movable module 31 and a clamp 32. The movable module 31 includes two linear modules that can move vertically and laterally. The movable module 31 drives the clamp 32 to flip the position of the unit 2 to clamp the vertical workpiece 4 in turn and place it at the target position.

[0045] Preferably, the loading mechanism of this embodiment is suitable for loading cylindrical workpieces 4, such as the iron core 41 and spring 42 of a pilot valve. In practice, one loading mechanism can be provided to load the iron core 41, and another loading mechanism can be provided to load the spring 42, with both loading mechanisms employing the aforementioned structure.

[0046] From the above content, it can be seen that the feeding assembly provided in this embodiment can feed the iron core and spring of the pilot valve, with high work efficiency, low labor cost, and convenience for subsequent assembly and automated assembly of the pilot valve.

[0047] Example 2:

[0048] like Figure 7 As shown, this embodiment provides a feeding device, which includes two feeding mechanisms as described in Example 1, and the two feeding mechanisms are a first feeding mechanism 100 and a second feeding mechanism 200. The first feeding mechanism 100 is used to feed the iron core 41, and the second feeding mechanism 200 is used to feed the spring 42. The spring 42 is a spring located between the coil and the iron core in the pilot valve. When the coil is energized, the iron core moves, and the spring is used to reset the iron core.

[0049] Specifically, the first loading mechanism 100 is disposed on one side of the second loading mechanism 200. The first loading mechanism 100 is used to load and transport the pilot valve's iron core 41 to a first target location. A carrier 400 is provided at the first target location, which has a notch for receiving the iron core 41. Specifically, the first target location is the receiving notch on the carrier 400. The second loading mechanism 200 is used to load and transport the pilot valve's spring 42 to a second target location. The carrier 400, which also has the iron core 41, is also provided at the second target location. The spring 42 is placed in a groove 411 at the top of the iron core 41. Specifically, the second target location is the groove 411 on the carrier 400 corresponding to the top of the iron core 41. This allows for assembly of the iron core 41 and its spring 42. The assembled iron core-spring assembly can then be used for the subsequent overall assembly of the pilot valve.

[0050] Furthermore, the feeding device of this embodiment also includes a conveying mechanism 300, which is arranged on the side of the two feeding mechanisms. The carrier 400 is movably arranged on the conveying mechanism 300. The carrier 400 can move under the conveyance of the conveying mechanism 300, first moving to the first target position of the first feeding mechanism 100 to receive an iron core 41, and then moving downstream to the second target position of the second feeding mechanism 200 to receive a spring 42. The second feeding mechanism 200 directly places the spring 42 into the groove 411 on the top of the iron core 41. The iron core 41 and the spring 42 thereon form an assembly, and the carrier 400 can also continue to move downstream along the conveying mechanism 300 with the assembly for subsequent assembly.

[0051] From the above content, it can be seen that the feeding device provided in this embodiment includes two feeding mechanisms and a conveying mechanism. In addition to being able to feed the iron core and the spring, it can also assemble the iron core and the spring, thereby facilitating the subsequent automated assembly of the entire pilot valve product.

[0052] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A feeding mechanism, characterized in that: include: A vibration loading unit (1), the vibration loading unit (1) is used to perform vibration loading on the workpiece (4), and sequentially transport the workpiece (4) in a horizontal state to the turning unit (2); A turning unit (2), the turning unit (2) being used to turn the workpiece (4) from a horizontal state to a vertical state in sequence; A pick-and-place unit (3) is used to sequentially clamp vertical workpieces (4) and place them at target positions.

2. The feeding mechanism according to claim 1, characterized in that: The flip unit (2) comprises a flip disc (21) and a flip module (22). The outer side surface of the flip disc (21) is provided with a receiving groove (211). The receiving groove (211) is used to receive the workpiece (4) in a horizontal state. The flip disc (21) is driven by the flip module (22) to flip, and flips the received workpiece (4) to a vertical state.

3. The feeding mechanism according to claim 2, characterized in that: The vibrating loading unit (1) comprises a vibrating plate (11) and a conveying line (12); the vibrating plate (11) vibrates to convey the workpiece (4) to the turning unit (2) in sequence via the conveying line (12); after the turning plate (21) in the turning unit (2) receives the workpiece (4), a portion of the workpiece (4) is located in the receiving groove (211), and another portion protrudes from the outer side surface of the turning plate (21); and an avoidance notch (121) is further provided at the end of the conveying line (12) for avoiding the other portion of the workpiece (4) when the turning plate (21) turns over.

4. The feeding mechanism according to claim 2 or 3, characterized in that: The outer side of the flip disc (21) is provided with a receiving groove (211). The flip disc (21) is driven by the flip module (22) to rotate forward to flip the horizontal workpiece (4) received by the receiving groove (211) to a vertical state, and is driven by the flip module (22) to rotate backward to reset the workpiece so that the receiving groove (211) can receive the next workpiece (4).

5. The feeding mechanism according to claim 4, characterized in that: The turning unit (2) further comprises a first detection sensor (23) for detecting whether the workpiece (4) in a horizontal state is placed in the receiving slot (211), and a second detection sensor (24) for detecting whether the workpiece (4) in a vertical state is located in the receiving slot (211).

6. The feeding mechanism according to claim 5, characterized in that: The first detection sensor (23) is a photoelectric sensor, and the flip disk (21) is also provided with a corresponding detection hole (231) that vertically passes through the receiving slot (211).

7. The feeding mechanism according to claim 1, characterized in that: The pick-and-place unit (3) comprises a moving module (31) and a clamping claw (32), and the clamping claw (32) is driven by the moving module (31) to sequentially clamp the workpieces (4) and place them at a target position.

8. The feeding mechanism according to claim 1, characterized in that: The workpiece (4) is an iron core (41) or a spring (42) of a pilot valve.

9. A feeding device, characterized in that: The invention comprises two feeding mechanisms as described in any one of claims 1 to 8, wherein the first feeding mechanism is used to feed the iron core (41) of the pilot valve onto a carrier (400); and the second feeding mechanism is used to feed the spring (42) of the pilot valve into a groove (411) at the top of the iron core (41) on the carrier (400).

10. The feeding device according to claim 9, characterized in that: The carrier (400) is capable of moving under the conveyance of the conveying mechanism (300), thereby receiving the iron core (41) at a target position of a first loading mechanism and receiving the spring (42) at a target position of a second loading mechanism.

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