CN116079393A - Bolt feeding device and bolt assembly system - Google Patents

Abstract

The invention discloses a bolt feeding device and a bolt assembling system, wherein the bolt feeding device comprises: the material supply part comprises a material channel, wherein the material channel is used for accommodating bolts; the feeding part comprises a storage bin and a first power part, wherein the storage bin is provided with a containing hole, the containing hole can be opposite to the material channel, the bolt in the material channel can be moved to the containing hole, and the first power part is used for pushing the bolt in the containing hole so that the head of the bolt and the storage bin are arranged in a clearance in the axial direction. The scheme can facilitate stable pickup of the downstream equipment on the bolts, and can avoid falling of the bolts in the transfer process of the downstream equipment to a greater extent, so that automatic assembly of the bolts is facilitated.

Description

Bolt feeding device and bolt assembly system

Technical Field

The invention relates to the technical field of automatic assembly, in particular to a bolt feeding device and a bolt assembly system.

Background

In an automated bolt assembly process, a bolt feeding device needs to be configured to feed the bolts, thereby facilitating the grabbing and using of the bolts by downstream equipment. However, the existing bolt feeding device generally has the problem of inconvenient grabbing, so that the bolts are easy to drop in the process of grabbing and moving the bolts by downstream equipment, and the automatic assembly of the bolts is not facilitated.

Therefore, how to provide a solution to overcome or alleviate the above-mentioned drawbacks is still a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a bolt feeding device and a bolt assembling system, wherein the bolt feeding device can facilitate stable pickup of downstream equipment on bolts, and is beneficial to automatic assembly of the bolts.

In order to solve the technical problem, the present invention provides a bolt feeding device, including: the material supply part comprises a material channel, wherein the material channel is used for accommodating bolts; the feeding part comprises a storage bin and a first power part, wherein the storage bin is provided with a containing hole, the containing hole can be opposite to the material channel, the bolt in the material channel can be moved to the containing hole, and the first power part is used for pushing the bolt in the containing hole so that the head of the bolt and the storage bin are arranged in a clearance in the axial direction.

By adopting the scheme, the first power part in the feeding part can push the bolt in the accommodating hole, so that the head part of the bolt and the bin can be arranged in a clearance way in the axial direction. Like this, downstream equipment is picking up the time of the bolt, can stretch into this clearance in to can directly pick up the pole portion of bolt, under this kind of mode of picking up, can naturally form the backstop between the head of bolt and the downstream equipment, can avoid the dropping of bolt in the downstream equipment transfer in-process to a great extent, in order to do benefit to the automated assembly of bolt.

Optionally, the feeding component further comprises a second power part, and the second power part is in transmission connection with the bin and is used for driving the bin to move relative to the material channel so as to switch between a first working position and a second working position; when in the first working position, the accommodating hole is opposite to the material channel, and when in the second working position, the accommodating hole is staggered with the material channel, and the material channel can be blocked by the material bin.

Optionally, the device further comprises a rack, wherein the rack is provided with a sliding rail, and the storage bin is slidably assembled on the sliding rail.

Optionally, the frame is provided with a limiting member, the limiting member being adapted to cooperate with the magazine to define at least the position of the first working position.

Optionally, the feeding component is further provided with a conveying part, and the conveying part is used for driving the bolt to displace in the material channel; and/or the material channel comprises two baffles which are oppositely arranged, an accommodating space is formed between the two baffles, and the bolt is positioned in the accommodating space; the distance between the two baffles is larger than the rod part of the bolt, and the distance between the two baffles is smaller than the head part of the bolt; and/or the first power part is arranged on the storage bin.

Optionally, the bin is further configured with a first detecting component for detecting a state of the accommodating hole; and/or the radial dimension of the accommodating hole is smaller than the head of the bolt, and the bolt moving to the accommodating hole is hung on the bin through the head.

The invention also provides a bolt assembly system which comprises a bolt taking and placing device, a bolt tightening device and a bolt feeding device, wherein the bolt feeding device is the bolt feeding device; the bolt taking and placing device is located at the downstream of the bolt feeding device and used for picking up bolts from the bolt feeding device, the bolt taking and placing device is also used for releasing the bolts, and the bolt tightening device is used for tightening the bolts released by the bolt taking and placing device.

Since the above-mentioned bolt feeding device has the above technical effects, the bolt assembly system with the bolt feeding device also has similar technical effects, and thus will not be described herein.

Optionally, the bolt picking and placing device comprises a first picking and placing mechanism, the first picking and placing mechanism comprises a first driving part and a tray, the first driving part is in transmission connection with the tray and is used for driving the tray to move, the tray is provided with a plurality of first picking and placing components with intervals, and the first picking and placing components are used for picking and placing the bolt.

Optionally, the first picking and placing component comprises a second driving part and two clamping claw parts which are oppositely arranged, and the second driving part is in transmission connection with the two clamping claw parts and is used for driving the two clamping claw parts to be close to or far away from each other; and/or the first driving part is used for driving the material tray to rotate.

Optionally, the first picking and placing mechanism further comprises a second detection component, and the second detection component is used for detecting the working state of the first picking and placing component.

Optionally, the bolt picking and placing device further comprises a second picking and placing mechanism, wherein the second picking and placing mechanism is provided with a second picking and placing component, and the second picking and placing component is used for picking and placing the bolt.

Optionally, the bolt tightening device comprises a pre-tightening mechanism and a tightening mechanism, wherein the pre-tightening mechanism is used for pre-tightening the bolt released by the bolt taking and placing device, and the tightening mechanism is used for tightening the pre-tightened bolt.

Optionally, the pre-screwing mechanism and the screwing mechanism each comprise a third driving part and a biasing sleeve, the biasing sleeve comprises an input member and an output member, the central axis of the input member is parallel to the central axis of the output member, the input member is in transmission connection with the third driving parts, and the output member is used for screwing the bolt.

Optionally, the device further comprises a mechanical arm, and the bolt taking and placing device and the bolt tightening device are assembled on the mechanical arm.

Optionally, the device further comprises a transition connector, wherein the transition connector is installed on the mechanical arm, and the bolt taking and placing device and the bolt tightening device are assembled on the transition connector.

Optionally, a visual detection component is further included, and the visual detection component is directly or indirectly assembled to the mechanical arm.

Optionally, the device further comprises a frame, wherein the frame comprises a top frame and a side frame, and the mechanical arm is hung on the top frame.

Drawings

FIG. 1 is a schematic view of a construction of an embodiment of a screw feeder according to the present invention;

FIG. 2 is a schematic diagram of one embodiment of a bolt assembly system according to the present invention;

FIG. 3 is a connection block diagram of the bolt pick-and-place device, the bolt tightening device, the transition connector, and the visual inspection component;

fig. 4 is a schematic structural view of the first pick-and-place mechanism.

The reference numerals are explained as follows:

100 bolt feeding devices, 110 feeding parts, 111 material channels, 111a baffles, 120 feeding parts, 121 bins, 122 first power parts, 123 second power parts, 124 first detection parts, 125 adapter plates, 130 racks, 131 bottom plates, 132 vertical plates, 132a sliding rails, 133 top blocks and 133a limiting parts;

200 bolt picking and placing devices, 210 first picking and placing mechanisms, 211 first driving parts, 212 trays, 213 first picking and placing components, 213a second driving parts, 213b clamping claw parts, 214 second detection components, 215 third detection components, 220 second picking and placing mechanisms and 221 second picking and placing components;

300 bolt tightening device, 310 pre-tightening mechanism, 311 third driving part, 312 offset sleeve, 312a output member, 320 tightening mechanism;

a 400 mechanical arm;

500 transition connectors, 510 connection arms;

600 visual inspection components;

700 frames, 710 roof frames, 720 side frames;

a bolt;

and B, an engine.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

In embodiments of the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and for example, "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium.

In the description of embodiments of the invention, the term "plurality" refers to two or more.

In the description of embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, M and/or N may indicate: m alone, M and N together, and N alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Example 1

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a screw feeding device according to the present invention.

As shown in fig. 1, the present invention provides a screw feeding device 100 including a feeding part 110 and a feeding part 120.

The feed member 110 includes a channel 111, the channel 111 for receiving the bolt a.

Referring to fig. 1, in some embodiments, the material channel 111 may include two baffles 111a disposed opposite to each other, and a receiving space may be formed between the two baffles 111a, and the bolt a may be disposed in the receiving space. In addition, in other embodiments of the present invention, the material channel 111 may take other forms, such as a U-shaped plate, as long as the receiving space of the bolt a can be formed.

The feeding member 120 includes a bin 121 and a first power portion 122, the bin 121 being provided with a receiving hole, which can be opposite to the material channel 111. The bolts a in the material passage 111 can be moved to the receiving holes. The first power portion 122 is used for pushing the bolt a in the accommodating hole, so that the head of the bolt a in the accommodating hole and the bin 121 can be in a clearance arrangement in the axial direction.

Like this, downstream equipment is picking up when bolt A, can stretch into in this clearance to can directly pick up bolt A's pole portion, under this kind of mode of picking up, can naturally form the backstop between bolt A's head and the downstream equipment, can avoid bolt A to a great extent at the dropping of downstream equipment transfer in-process.

In product design, the radial dimension of the receiving hole may be smaller than the head, so that the bolt a moved to the receiving hole can be hung on the bin 121 through the head, and thus the installation position of the bolt a in the receiving hole can be defined. Of course, a solution is also possible in which the radial dimension of the receiving hole is greater than that of the head, in which case the bolt a may be entirely introduced into the receiving hole, and a limiting member may be provided in the receiving hole for limiting the mounting position of the bolt a in the receiving hole, or the mounting position of the bolt a may be limited by means of the first power portion 122.

The embodiment of the present invention is not limited to the specific configuration of the first power unit 122, and in practical applications, those skilled in the art may determine the configuration according to specific needs, so long as the configuration can meet the requirements of use.

It should be noted that the first power portion 122 is linearly displaced for driving the bolt a, and therefore, the first power portion 122 only needs to be able to output the linear displacement. Based on this, the first power portion 122 may adopt driving elements in the form of a linear cylinder, etc., which can directly output the linear displacement required by the bolt a, and the structural form is relatively simple; alternatively, the first power unit 122 may employ driving elements in the form of rotary cylinders, motors, etc., and the displacement directly output by these driving elements may be rotary displacement, or in actual use, a displacement conversion mechanism in the form of a rack-and-pinion mechanism, a screw mechanism, etc. may be used in combination to convert the rotary displacement directly output by the driving elements into a desired linear displacement.

Taking the first power portion 122 as a linear cylinder as an example, the first power portion 122 may include a cylinder and a piston rod, where the cylinder is used to achieve the fixed installation of the first power portion 122, and the piston rod may generate an acting force on the bolt a to drive the bolt a to displace in the accommodating hole. In actual use, the piston rod may be located in the receiving hole all the time, or may extend into the receiving hole only when it is required to interact with the bolt a.

In addition, the embodiment of the present invention is not limited to a specific value of the gap between the head of the bolt a and the bin 121 after the first power portion 122 acts, and in practical application, a person skilled in the art may determine the gap in combination with a specific structural form of the downstream device, so long as the downstream device can conveniently pick up the bolt a.

The length of the bolt a required to be used may be different when applied to different scenarios. When feeding the bolts a with different lengths, the stroke of the first power portion 122 may be adjusted, or the installation position of the first power portion 122 may be adjusted, so as to avoid interference of the first power portion 122 on the bolts a entering the accommodating hole. Thus, the screw feeder 100 of the present invention may be adapted for use with screws a of different sizes.

The adjustment manners of the installation position of the first power portion 122 may include: matching scheme of the strip-shaped hole and the bolt, screw rod adjusting scheme and the like. The stroke adjustment of the first power unit 122 may be a control program using a variable stroke cylinder or an adjustment motor, or the like.

In some embodiments, the feeding part 110 may further include a conveying part (not shown in the drawings) for driving the bolts a to displace in the material channel 111 to move the bolts a in the material channel 111 to the feeding part 120.

The conveying part can specifically adopt a conveying belt, and the conveying belt can be contacted with the bolt A so as to drive the bolt A to displace in the material channel 111; alternatively, the conveying unit may be another type of conveying mechanism such as a roller conveyor, as long as the technical effect of displacing the bolts a in the material path 111 can be satisfied. In practical applications, the conveying portion is not necessarily disposed below each bolt a, and in fact, only a portion of the bolts a need to be driven by the conveying portion below the bolts a, so that the driving force can be generated on the bolts a in the material channel 111, and each bolt a is further driven to move toward the feeding member 120.

It will be appreciated that a bolt feeding device may also be provided upstream of the chute 111 for feeding the bolts a into the chute 111.

Based on this, in other embodiments, the conveying portion may be integrated in the upstream apparatus, that is, in the embodiment of the present invention, the material feeding part 110 may include only the material channel 111 (see fig. 1), and in this case, the structure of the material feeding part 110 may be simpler, and the bolt a may enter the material channel 111 by the driving force generated by the conveying portion in the upstream apparatus and be displaced in the material channel 111. The specific structural form of the upstream device is not particularly limited in this application, and in practical application, a person skilled in the art may refer to the related art to determine the specific structural form, so long as the requirement of use can be satisfied.

For the scheme that the feeding part 110 does not comprise a conveying part, the bottoms of the two baffles 111a can not be supported and limited, and the constraint on the axial direction of the bolt A can be relieved, so that the feeding channel 111 can be better adapted to feeding of bolts A with different lengths, and the adaptation range of the bolt feeding device 100 can be greatly expanded.

In this embodiment, the width of the receiving space formed between the two baffles 111a (i.e., the distance between the two baffles 111 a) may be smaller than the head of the bolt a, and the width may be larger than the shaft of the bolt a. So set up, bolt A's pole portion can get into accommodation space smoothly, and bolt A's head then can articulate on the roof of material way 111 to avoid bolt A to drop from the material way 111. Meanwhile, through the interaction of the head of the bolt A and the top wall of the bin 121, the posture of the bolt A in the material channel 111 can be limited, and the method has positive significance for ensuring that the bolt A smoothly enters the accommodating hole.

In some alternative embodiments, the feeding member 120 may further include a second power portion 123, where the second power portion 123 may be in driving connection with the bin 121 for driving the bin 121 to displace relative to the channel 111, so as to adjust the position of the bin 121 relative to the channel 111, so that the bin 121 may be switched between the first working position and the second working position.

In the first working position, the accommodating hole and the material channel 111 can be opposite, and the bolt A can enter the accommodating hole from the material channel 111; in the second working position, the receiving hole and the material channel 111 can be staggered, and the material channel 111 can be blocked by the material bin 121. By adopting the scheme, through switching to the second working position, the outer wall of the storage bin 121 can correct the posture of the bolt A in the material channel 111, so that the bolt A can enter the accommodating hole according to the set posture; so set up, on the one hand, can promote bolt A and get into the smoothness nature of holding the hole, can reduce bolt A and take place the condition of jamming, on the other hand also is favorable to guaranteeing that first power portion 122 can accurately act on with bolt A.

In a specific working process, the second power part 123 can drive the storage bin 121 to perform reciprocating motion. In detail, when one bolt a is picked up by the downstream equipment and the next bolt a has not yet entered the receiving hole, the second power portion 123 may drive the bin 121 to switch to the second working position, so as to perform posture adjustment on the next bolt a through the outer wall of the bin 121; then, the first power portion 122 may further drive the bin 121 to switch to the first working position, and at this time, the receiving hole may receive the bolt a with the adjusted posture.

The displacement form to be output by the second power part 123 is also linear displacement, so that the second power part 123 can adopt driving elements in the forms of a linear cylinder, a linear oil cylinder and the like, and the driving elements can directly output the linear displacement required by the bolt A, and the structural form is relatively simple; alternatively, the second power unit 123 may employ driving elements in the form of a revolving cylinder, a motor, or the like, and the displacement directly output by these driving elements may be in the form of rotational displacement, or in actual use, may be combined with a displacement conversion mechanism in the form of a rack-and-pinion mechanism, a screw mechanism, or the like, so as to convert the rotational displacement directly output by the driving elements into a desired linear displacement.

Taking the second power portion 123 as a linear cylinder as an example, the second power portion 123 may include a cylinder and a piston rod, where the cylinder is used to realize the fixed installation of the second power portion 123, and the piston rod may generate an acting force on the bin 121 to drive the bin 121 to displace.

The second power part 123 and the bin 121 may be directly connected, and the number of parts of the connection manner is relatively small, and the structure is relatively simple.

Alternatively, the second power section 123 and the bin 121 may be indirectly connected, and in this embodiment, as shown in fig. 1, the second power section 123 may be connected to the bin 121 through the adapter plate 125. The setting of keysets 125 can adapt to the mounted position of second power portion 123 and feed bin 121, simultaneously, also can dodge corresponding part (such as first power portion 122 etc.), can make things convenient for the connection of second power portion 123 and feed bin 121.

The specific structural form of the adapter plate 125 is not limited herein, and in practical applications, those skilled in the art may configure the adapter plate according to specific needs, so long as the adapter plate can meet the requirements of use. Exemplary, as shown in fig. 1, the adapter plate 125 may be L-shaped, and includes a first plate portion and a second plate portion connected to each other and disposed at an included angle, where the first plate portion is configured to be connected to the second power portion 123, and the second plate portion is configured to be connected to the bin 121.

With continued reference to fig. 1, the bolt feeding apparatus 100 provided by the present invention may further include a first detecting component 124, where the first detecting component 124 may specifically be an infrared detecting component or the like, for detecting a state of the receiving hole, that is, detecting whether the bolt a exists in the receiving hole, and sending a corresponding signal to the outside, so as to facilitate operation of the device.

In practical application, if the first detecting component 124 detects that the bolt a exists in the accommodating hole, a signal may be sent to the downstream device, and the downstream device may pick up the bolt a in the accommodating hole; if the first detecting component 124 detects that the bolt a does not exist in the accommodating hole, a signal can be sent to the second power portion 123, the second power portion 123 can control the bin 121 to shift to the second working position, and then the second power portion 123 can drive the bin 121 to shift to the first working position again.

The first detecting part 124 may be installed at the bin 121, so that the integration of the apparatus is higher. When the bin 121 is displaced by the second power portion 123, the first detecting member 124 can be displaced synchronously, and interference between the first detecting member 124 and the bin 121 is not required to be considered in designing a product.

Of course, in some other implementations of the embodiment of the present invention, the first detecting component 124 may be installed independently, and at this time, the second power portion 123 does not need to drive the first detecting component 124 to displace, so that the load of the second power portion 123 is relatively small, which is also beneficial to reducing energy consumption and reducing the use cost of the device.

Likewise, the first power portion 122 and the bin 121 may be integrally assembled to further improve the integration and compactness of the apparatus. Meanwhile, the relative positions of the first power part 122 and the storage bin 121 are unchanged, so that accurate butt joint of the first power part 122 and the bolt A in the accommodating hole is guaranteed.

Of course, in some other implementations of the embodiments of the invention, the first power portion 122 and the bin 121 may also be assembled separately. In this embodiment, the second power unit 123 does not need to drive the first power unit 122 to operate, so that the load of the second power unit 123 can be reduced, and the power consumption of the second power unit 123 can be effectively reduced.

With continued reference to fig. 1, the screw feeder 100 of the present invention may further include a frame 130. The frame 130 forms the structural foundation of the screw feeder 100, and the frame 130 can realize positioning and installation of the screw feeder 100 in a production line, and meanwhile, the frame 130 can also provide an installation foundation for the feeding part 110, the feeding part 120 and the like, so that the whole screw feeder 100 is assembled in an integrated manner.

In this embodiment, the specific structural form of the rack 130 is not limited, and in practical application, those skilled in the art may design according to specific needs, so long as the requirements of use can be met.

In the embodiment of the drawings, as shown in fig. 1, the rack 130 may include a bottom plate 131, a vertical plate 132, and a top block 133. The bottom plate 131 is provided with a strip-shaped hole (not marked in the figure), and the bottom plate 131 can be installed and positioned on a production line by being matched with a connecting piece in the form of a bolt and the like; moreover, the displacement of the connecting piece in the strip-shaped hole can also conveniently adjust the installation position of the bottom plate 131 in the production line so as to increase the adjustability of the equipment. The vertical plate 132 may be mounted on the bottom plate 131, the specific mounting manner may be screw connection or welding, etc., the second power portion 123 may be mounted on the Yu Liban, and the storage bin 121 may also be slidably assembled with respect to the vertical plate 132, that is, the whole feeding member 120 may be mounted on the vertical plate 132 and located on the same side of the vertical plate 132, so that the structure is compact and convenient for maintenance. The top blocks 133 may be located on two sides of the material channel 111 to define the installation position of the material channel 111.

For the sliding connection scheme of the bin 121 and the vertical plate 132, the vertical plate 132 may be provided with a sliding rail 132a, and the bin 121 may be slidably assembled to the sliding rail 132a. The specific configuration of the slide rail 132a is not limited herein.

It should be understood that the sliding installation position of the bin 121 is not limited to the vertical plate 132, and may be slidably mounted at other positions of the rack 130, such as the bottom plate 131 or the top block 133, and the sliding rail 132a may be mounted on the bottom plate 131 or the top block 133, so as to meet the technical requirement of the sliding installation of the bin 121.

In some alternative embodiments, the rack 130 may further be provided with a limiting member 133a, and in conjunction with fig. 1, the limiting member 133a may be specifically mounted to the top block 133.

The limiting component 133a is used for matching with the bin 121, and can be used for limiting the bin 121 in a abutting mode, so that the position of the bin 121 relative to the material channel 111 under the first working position is limited at least, the accommodating hole can be accurately abutted with the material channel 111, and therefore the bolt A can accurately enter the accommodating hole.

In specific practice, two limiting members 133a may be provided, and the two limiting members 133a may be mounted to the frame 130 at intervals. One of the stop members 133a may be used to define the position of the first work site discharge bin 121 relative to the lane 111, and the other stop member 133a may be used to define the position of the second work site discharge bin 121 relative to the lane 111.

The embodiment of the present invention is not limited to the specific structure of the limiting member 133a, and in practical applications, those skilled in the art may set the limiting member according to specific needs, so long as the limiting member can meet the use requirements.

For example, the limiting component 133a may be a rigid limiting member in the form of a limiting plate, a limiting block, or the like, which is not prone to morphological changes; alternatively, the limiting component 133a may be a flexible limiting member with a certain elasticity and capable of undergoing a certain shape change, such as a spring, rubber or a damping limiter, and the flexible limiting member in this form can effectively absorb the impact force of the bin 121 in the displacement process, can reduce the collision damage of the bin 121 and the limiting component 133a, and is beneficial to reducing the collision noise so as to protect the field working environment.

Example two

Referring to fig. 2 to fig. 4, fig. 2 is a schematic structural diagram of an embodiment of a bolt assembling system according to the present invention, fig. 3 is a connection structure diagram of a bolt taking and placing device, a bolt tightening device, a transition connector and a visual detection component, and fig. 4 is a schematic structural diagram of a first taking and placing mechanism.

As shown in fig. 2, the present invention provides a bolt assembly system including a bolt picking and placing device 200, a bolt tightening device 300, and a bolt feeding device 100. The screw feeder 100 is a screw feeder according to each of the embodiments of the first embodiment; the bolt taking and placing device 200 is a downstream component of the bolt feeding device 100, and is used for picking up the bolt A from the bolt feeding device 100, conveying the obtained bolt A to a part to be connected, and then placing the obtained bolt A in a connecting hole of the part to be connected; the bolt tightening device 300 can tighten the bolt a in the connection hole to ensure reliable assembly of the bolt a.

Since the bolt feeding apparatus 100 of the first embodiment has the above technical effects, the bolt assembly system with the bolt feeding apparatus 100 also has similar technical effects, and thus will not be described herein.

Referring to fig. 3 and 4, the bolt picking and placing apparatus 200 may include a first picking and placing mechanism 210, and the first picking and placing mechanism 210 may include a first driving part 211 and a tray 212. The first driving part 211 and the tray 212 may be in transmission connection, so as to drive the tray 212 to move. The tray 212 may be provided with a plurality of first pick-and-place members 213 spaced apart from each other, and the first pick-and-place members 213 are used for picking and placing the bolts a.

In this way, the first pick-and-place members 213 of the tray 212 may be engaged with the screw feeder 100 to pick up the screw a under the driving of the first driving portion 211. That is, the first pick-and-place mechanism 210 can achieve the picking up of a plurality of bolts a, which has positive significance in improving the installation efficiency and saving the installation time.

The embodiment of the present invention is not limited to the specific configuration of the first driving portion 211, and in practical applications, those skilled in the art may set the configuration according to specific needs, so long as the configuration can meet the requirements of use.

In fact, the structural form of the first driving portion 211 is associated with the movement form required for the tray 212. It should be appreciated that the movement of the tray 212 is to implement the switching of the different first picking and placing members 213, so that each first picking and placing member 213 can pick up the bolt a supplied by the bolt feeding apparatus 100, and each first picking and placing member 213 can release the bolt a at the corresponding connection hole of the to-be-connected piece. Thus, the above technical purpose can be achieved by both linear displacement and rotational displacement, and the structural form of the first driving portion 211 used in combination can be different based on different displacement requirements.

When the displacement required by the tray 212 is in a linear displacement form, the first driving part 211 can adopt driving elements in the form of a linear cylinder, a linear oil cylinder and the like, and the driving elements can directly output the linear displacement required by the tray 212, so that the structure form is relatively simple; alternatively, the first driving unit 211 may employ driving elements in the form of a revolving cylinder, a motor, or the like, and the displacement directly output by these driving elements may be in the form of rotational displacement, or in actual use, a displacement conversion mechanism in the form of a rack-and-pinion mechanism, a screw mechanism, or the like may be incorporated so as to convert the rotational displacement directly output by the driving elements into a desired linear displacement.

When the displacement required by the tray 212 is in the form of rotational displacement, the first driving part 211 may directly employ a driving element in the form of a rotary cylinder, a motor, or the like, so as to directly output the rotational displacement required by the tray 212.

The displacement forms of the trays 212 are different, and the layout modes of the corresponding first pick-and-place members 213 on the trays 212 may also be different. Taking the displacement form of the tray 212 as a rotational displacement as an example, the first pick-and-place members 213 may be arranged at intervals in the circumferential direction of the tray 212.

In addition, the embodiment of the present invention is not limited to the specific structural form of the first pick-and-place member 213, and in practical application, those skilled in the art may set the first pick-and-place member according to specific needs, so long as the first pick-and-place member can meet the use requirements. The first pick-and-place unit 213 may be a magnetic pick-and-place member or a jaw type pick-and-place member, for example.

Taking a clamping jaw type picking and placing component as an example, referring to fig. 4, the first picking and placing component 213 may include a second driving portion 213a and two oppositely disposed clamping jaw portions 213b, where the second driving portion 213a may be in driving connection with the two clamping jaw portions 213b, so as to drive the two clamping jaw portions 213b to approach each other or separate from each other. The second driving portion 213a may specifically be a clamping cylinder or the like; alternatively, the second driving portion 213a may be designed with reference to the first driving portion 211, and the jaw portions 213b may be linearly displaced to be close to or apart from each other, or the jaw portions 213b may be rotationally displaced to be close to or apart from each other.

When the bolt a needs to be picked up, the two clamping jaw portions 213b can extend into an axial gap between the head of the bolt a and the bin 121, and under the action of the second driving portion 213a, the two clamping jaw portions 213b can be close to each other so as to clamp the rod portion of the bolt a, and the head of the bolt a and the two clamping jaw portions 213b can form a limit, so that the possibility that the bolt a falls from the first picking and placing component 213 can be reduced. When the bolt a needs to be released, the two jaw portions 213b can be separated from each other by the second driving portion 213a to release the restriction of the head of the bolt a, so that the bolt a can be naturally separated from the first picking and placing member 213.

In some alternative embodiments, the first pick-and-place mechanism 210 may further include a second detecting component 214, where the second detecting component 214 may specifically be an infrared detecting component, and the second detecting component 214 is configured to detect an operating state of the first pick-and-place component 213, so as to determine whether the first pick-and-place component 213 picks up or releases the bolt a.

In detail, after the second detecting part 214 determines that the first picking and placing part 213 picks up or releases the bolt a, a signal may be transmitted to the first driving part 211, and the first driving part 211 may control the tray 212 to move so as to switch the different first picking and placing parts 213 to pick up or release the bolt a.

There may be a one-to-one correspondence between the second detecting elements 214 and the first picking and placing elements 213, so that each second detecting element 214 only needs to detect the working state of the corresponding first picking and placing element 213. Such an embodiment may be seen in fig. 4, where each of the second detecting members 214 may be mounted to the tray 212.

Alternatively, there may be only one second detecting member 214, and the second detecting member 214 may be mounted on the first driving portion 211, where the detecting direction may be determined, and the second detecting member 214 may detect the operating state of the corresponding first picking and placing member 213 when the corresponding first picking and placing member 213 moves and passes the second detecting member 214.

In some alternative embodiments, the first pick-and-place mechanism 210 may further include a third detecting member 215, where the third detecting member 215 may detect the moving position of the tray 212, so as to control which of the first pick-and-place members 213 is specifically operated. Taking the displacement of the tray 212 as a rotational displacement as an example, the third detecting member 215 may specifically be an angle sensor for detecting the rotation angle of the tray 212.

As shown in fig. 3, in the embodiment of the present invention, the bolt taking and placing device 200 may further include a second taking and placing mechanism 220, where the second taking and placing mechanism 220 may be configured with only one second taking and placing component 221, and the second taking and placing component 221 may also be used to take and place the bolt a.

The second pick-and-place unit 221 may be constructed as described above with reference to the first pick-and-place unit 213, and will not be repeated here. Since the second picking and placing mechanism 220 is configured with only one second picking and placing component 221, the structural size of the second picking and placing mechanism 220 can be relatively smaller, which is more suitable for picking and placing the bolt a in a narrow space, and further can promote the application scenario of the bolt picking and placing device 200 in the embodiment of the invention.

In specific practice, the first pick-and-place mechanism 210 and the second pick-and-place mechanism 220 may be used in combination, or alternatively, may be used, which specifically needs to be determined in combination with an actual application scenario.

Referring to fig. 3, the bolt tightening device 300 may include a pre-tightening mechanism 310 and a tightening mechanism 320, wherein the pre-tightening mechanism 310 is used for pre-tightening the bolt a, so that the position of the bolt a on the to-be-connected member can be relatively fixed, and the tightening mechanism 320 can be used for tightening the bolt a according to a set torque so as to fasten the bolt a on the to-be-connected member. The scheme of pre-screwing and then screwing is beneficial to ensuring the assembly precision of the to-be-connected piece, and is particularly suitable for use environments in which a plurality of bolts A are used for connection.

It should be appreciated that the bolt tightening device 300 may also employ a one-step tightening scheme, in which case the bolt tightening device 300 may also include only the tightening mechanism 320.

Referring to fig. 3, both the pre-screw mechanism 310 and the screw mechanism 320 may include a third drive portion 311 and a biasing sleeve 312. The third driving unit 311 may be a servo motor or the like. The biasing sleeve 312 may include an input member and an output member 312a, where the input member and the third driving portion 311 may be disposed substantially coaxially, and a central axis of the input member and a central axis of the output member 312a may be parallel, and the input member and the output member 312a may be in driving connection, and a specific driving connection manner may be, for example, gear driving, pulley driving, sprocket driving, and the like. The input member is in driving connection with the third driving part 311 for receiving power input from the third driving part 311, and the output member 312a is connected with the bolt a for screwing the bolt a, thereby realizing pre-screwing and tightening of the bolt a.

By adopting the above-mentioned scheme of biasing sleeve 312, the output member 312a and the input member (i.e. the third driving portion 311) may be different from each other, which is more beneficial to screwing the bolt a in a small space, and can promote the application range of the above-mentioned bolt tightening device 300.

A torque sensor or the like may be further provided inside the tightening mechanism 320 for detecting a specific value of the torque applied by the third driving portion 311, so that the accuracy of the torque applied by the tightening mechanism 320 may be improved.

Referring to fig. 2, in some alternative embodiments, the bolt assembling system provided by the present invention may further include a mechanical arm 400, where the bolt picking and placing device 200 and the bolt tightening device 300 may be assembled on the mechanical arm 400, so as to improve the integration and compactness of the apparatus, and the mechanical arm 400 may drive the bolt picking and placing device 200 and the bolt tightening device 300 to perform synchronous displacement. Of course, in other implementations of the embodiment of the present invention, the mechanical arm 400 may be configured for the bolt picking and placing device 200 and the bolt tightening device 300, respectively, which is also possible.

The specific structural form of the robot arm 400 is not limited herein, and in practical applications, a person skilled in the art can make a determination with reference to the related art. Illustratively, the robotic arm 400 may employ a six-axis robot or the like.

Further, the bolt assembly system provided by the invention can further comprise a transition connector 500, wherein the transition connector 500 can be mounted on the mechanical arm 400, and the bolt taking-out and placing device 200 and the bolt tightening device 300 can be assembled on the transition connector 500. The transition connector 500 may provide mounting points to enable integrated assembly of the bolt pick and place device 200 and the bolt tightening device 300, and then the transition connector 500 may be further connected to the robot arm 400.

Of course, in some other implementations of the embodiments of the present invention, the bolt picking and placing device 200 and the bolt tightening device 300 may be directly connected to the mechanical arm 400, respectively, which is also possible.

In particular practice, referring to fig. 3, the transitional coupling 500 may be further configured with a connecting arm 510, and each of the bolt pick-and-place device 200 and the bolt tightening device 300 may be mounted on the connecting arm 510 so as to adjust the respective mounting positions by using the connecting arm 510, thereby avoiding interference between the bolt pick-and-place device 200 and the bolt tightening device 300 during the mounting process to a large extent.

For ease of understanding, the following embodiments of the present invention will describe how the bolt assembly system provided by the present invention works specifically, taking the installation of the oil pan of the engine B as an example. In detail, the mechanical arm 400 may drive the bolt picking and placing device 200 and the bolt tightening device 300 to approach the bolt feeding device 100; then, by means of the action adjustment of the mechanical arm 400, or the mechanical arm 400 drives the transition connector 500 to rotate, so that the first picking and placing mechanism 210 and/or the second picking and placing mechanism 220 approach to the bolt feeding device 100, and the picking up of the bolt A is completed at the bolt feeding device 100 by the first picking and placing mechanism 210 and/or the second picking and placing mechanism 220; then, the mechanical arm 400 may drive the bolt picking and placing device 200 and the bolt tightening device 300 to approach the engine B, and release the bolt a in the mounting hole of the engine B by the first picking and placing mechanism 210 and/or the second picking and placing mechanism 220; when the bolts a are released (the bolts a are placed in the mounting holes), the movement of the mechanical arm 400 is used for adjusting, or the mechanical arm 400 drives the transition connector 500 to rotate, so that the pre-screwing mechanism 310 and the screwing mechanism 320 can be moved to the positions of the bolts a to be screwed of the engine B successively, and in specific operation, the pre-screwing mechanism 310 can pre-screw the bolts a in sequence, and then the screwing mechanism 320 screws the bolts a in sequence.

The bolt assembly system provided by the invention can further comprise a visual detection component 600, the visual detection component 600 can be an industrial camera, and the like, and the visual detection component 600 can be directly or indirectly assembled to the mechanical arm 400. In the embodiment shown in the drawings, the visual inspection unit 600 may be mounted to the transition connector 500.

The visual inspection unit 600 described above can realize positional guidance for accurate positional movement of the bolt pick-and-place device 200 and the bolt tightening device 300.

With continued reference to fig. 2, the bolt assembly system provided by the present invention may further include a frame 700, the frame 700 may include a top frame 710 and side frames 720, the number of the side frames 720 may be two, and the two side frames 720 may be arranged at a distance from each other and may be connected to the top frame 710. The mechanical arm 400 can be hung below the top frame 710, so that the occupation of the ground space can be reduced, the production space can be saved, and the production safety can be guaranteed.

The bolt assembly system provided by the invention can be used for unmanned production, the bolt feeding device 100 can automatically complete feeding of the bolt A, the bolt taking and placing device 200 can automatically complete taking and placing of the bolt A, and the bolt tightening device 300 can automatically complete tightening of the bolt A, so that the automation degree of equipment is high, errors caused by manual participation can be reduced, and the reliability of bolt connection can be improved.

It should be noted that, the embodiment of the present invention is not limited to the application scenario of the bolt assembly system, that is, the application field of the bolt assembly system, and in practical application, a person skilled in the art may perform configuration according to specific needs, so long as the requirement of use can be met. The bolt-mounting system is applicable to, for example, the mounting of an oil pan in an engine B (refer to fig. 2).

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (13)

1. A screw feeder, comprising:

-an incoming part (110) comprising a channel (111), said channel (111) being adapted to receive a bolt (a);

the feeding component (120) comprises a storage bin (121) and a first power part (122), wherein the storage bin (121) is provided with a containing hole, the containing hole can be opposite to the material channel (111), a bolt (A) in the material channel (111) can move to the containing hole, and the first power part (122) is used for pushing the bolt (A) in the containing hole so that the head of the bolt (A) and the storage bin (121) are arranged in a clearance way in the axial direction.

2. The screw feeder according to claim 1, wherein the feeder member (120) further comprises a second power section (123), the second power section (123) being in driving connection with the magazine (121) for driving the magazine (121) to displace with respect to the channel (111) for switching between a first working position and a second working position;

in the first working position, the accommodating hole is opposite to the material channel (111), in the second working position, the accommodating hole is staggered from the material channel (111), and the material channel (111) can be blocked by the material bin (121).

3. The screw feeder according to claim 2, further comprising a frame (130), the frame (130) being provided with a slide rail (132 a), the magazine (121) being slidingly mounted to the slide rail (132 a).

4. A screw feeder according to claim 3, characterized in that the frame (130) is provided with a stop member (133 a), the stop member (133 a) being adapted to cooperate with the magazine (121) to define at least the position of the first working position.

5. The screw feeder according to any one of claims 1-4, wherein the feed member (110) is further provided with a conveying portion for driving the screw (a) into displacement within the channel (111); and/or the number of the groups of groups,

The material channel (111) comprises two baffles (111 a) which are oppositely arranged, an accommodating space is formed between the two baffles (111 a), and the bolt (A) is positioned in the accommodating space; the distance between the two baffles (111 a) is larger than the rod part of the bolt (A), and the distance between the two baffles (111 a) is smaller than the head part of the bolt (A); and/or the number of the groups of groups,

the first power part (122) is mounted on the stock bin (121).

6. The screw feeder according to any one of claims 1-4, wherein the magazine (121) is further provided with a first detection means (124) for detecting the condition of the receiving hole; and/or the number of the groups of groups,

the radial dimension of the accommodating hole is smaller than the head of the bolt (A), and the bolt (A) moving to the accommodating hole is hung on the bin (121) through the head.

7. A bolt assembly system, characterized by comprising a bolt pick-and-place device (200), a bolt tightening device (300) and a bolt feeding device (100), the bolt feeding device (100) being a bolt feeding device according to any one of claims 1-6;

the bolt taking and placing device (200) is located at the downstream of the bolt feeding device (100), the bolt taking and placing device (200) is used for picking up a bolt (A) from the bolt feeding device (100), the bolt taking and placing device (200) is further used for releasing the bolt (A), and the bolt tightening device (300) is used for tightening the bolt (A) after the bolt taking and placing device (200) is released.

8. The bolt assembly system according to claim 7, wherein the bolt pick-and-place device (200) comprises a first pick-and-place mechanism (210), the first pick-and-place mechanism (210) comprises a first driving part (211) and a tray (212), the first driving part (211) and the tray (212) are in transmission connection and are used for driving the tray (212) to move, the tray (212) is provided with a plurality of first pick-and-place components (213) which are spaced apart, and the first pick-and-place components (213) are used for picking and placing the bolts (a).

9. The screw assembly system according to claim 8, wherein the first pick-and-place member (213) comprises a second driving portion (213 a) and two oppositely arranged clamping jaw portions (213 b), the second driving portion (213 a) being in driving connection with the two clamping jaw portions (213 b) for driving the two clamping jaw portions (213 b) towards each other or away from each other; and/or the number of the groups of groups,

the first driving part (211) is used for driving the tray (212) to rotate.

10. The bolt assembly system of claim 8, wherein the first pick-and-place mechanism (210) further comprises a second detection member (214), the second detection member (214) being configured to detect an operational state of the first pick-and-place member (213).

11. The bolt assembly system of claim 8, wherein the bolt pick-and-place device (200) further comprises a second pick-and-place mechanism (220), the second pick-and-place mechanism (220) being configured with a second pick-and-place member (221), the second pick-and-place member (221) being configured to pick and place the bolt (a).

12. The bolt assembly system according to any one of claims 7 to 11, wherein the bolt tightening device (300) includes a pre-tightening mechanism (310) and a tightening mechanism (320), the pre-tightening mechanism (310) being configured to pre-tighten the bolt (a) after the release of the bolt pick-and-place device (200), the tightening mechanism (320) being configured to tighten the pre-tightened bolt (a).

13. The screw assembly system according to claim 12, wherein the pre-tightening mechanism (310) and the tightening mechanism (320) each comprise a third driving portion (311) and a biasing sleeve (312), the biasing sleeve (312) comprising an input member and an output member (312 a), the central axes of the input member and the output member (312 a) being parallel, the input member and the third driving portion (311) being in driving connection, the output member (312 a) being for screwing the screw (a).

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