A nut feeding and positioning device

Abstract

The present invention relates to the technical field of industrial manufacturing equipment, and discloses a nut feeding and positioning device, which includes a feeding mechanism provided with a feeding channel, a positioning mechanism provided with a positioning groove, and a feeding mechanism for conveying nuts to the positioning groove one by one. The feeding mechanism includes a first feeding component and a second feeding component arranged above the feeding channel and the feeding channel, the first feeding component can push the nuts one by one to the nut feeding position, and the second feeding component can push the nuts located at the nut feeding position into the positioning groove along the feeding channel. The present invention conveys the nuts to the positioning groove one by one through the feeding mechanism, realizes automatic feeding of the nuts, and realizes accurate positioning of the nuts through the positioning groove, saves the labor cost of nut assembly, and improves production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of industrial manufacturing equipment, and in particular to a nut feeding and positioning device. Background Art

[0002] In the industrial production process, fasteners consisting of screws and nuts are widely used to assemble and process PCB boards (electronic circuit integrated boards).

[0003] At present, the loading and assembly of nuts are basically done by the operators of the production line using matching fixtures. Manual loading and assembly is time-consuming and labor-intensive, with low production efficiency. With the continuous increase in labor costs, it can no longer meet market demand. There are also some equipment that can realize automatic loading and positioning of nuts, but the loading and positioning stability of such equipment is poor, and the nut position often deviates, resulting in a high failure rate of the equipment, which in turn affects work efficiency.

[0004] Therefore, there is an urgent need to provide a nut feeding and positioning device that can accurately realize automatic feeding and accurate positioning of nuts, reduce labor costs, and improve production efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a nut feeding and positioning device, which can accurately realize automatic feeding and accurate positioning of nuts, reduce labor costs and improve production efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides a nut feeding and positioning device, which comprises:

[0008] A feeding mechanism, which is provided with a feeding channel for conveying nuts along a first direction;

[0009] A positioning mechanism, wherein a feeding channel is provided along the first direction, one end of the feeding channel is connected to the feeding channel, and the other end forms a positioning groove for positioning the nut;

[0010] The feeding mechanism includes a first feeding component and a second feeding component which are arranged above the feeding channel and the feeding channel, wherein the first feeding component is configured to push the nuts one by one to the nut feeding position; and the second feeding component is configured to push the nuts located at the nut feeding position into the positioning groove along the feeding channel.

[0011] Optionally, the nut feeding and positioning device further comprises:

[0012] The material blocking mechanism is arranged at an upstream position of the nut upper material position, and is configured so that when one of the nut on the feed channel is conveyed through the material blocking mechanism, the material blocking mechanism can limit the remaining nuts.

[0013] Optionally, the material blocking mechanism includes a positioning assembly, which is arranged at an upstream position of the nut loading position and is configured to move along a second direction and position the next nut adjacent to the nut pushed by the first loading assembly, and the second direction is perpendicular to the first direction.

[0014] Optionally, the positioning assembly includes a positioning cam, and a avoidance groove is opened along the second direction on the side wall at the upstream position of the nut loading position, the positioning cam is passed through the avoidance groove, and the positioning cam can move along the second direction to position the next nut adjacent to the nut pushed by the first loading assembly.

[0015] Optionally, the first loading component includes:

[0016] A first directional displacement member, a third directional displacement member of an insertion rod driven by the first directional displacement member to move along the first direction, and an insertion rod arranged at an output end of the third directional displacement member of the insertion rod;

[0017] The third-direction displacement member of the insertion rod is configured to enable the insertion rod to move along the third direction so as to be inserted into the screw hole of the nut;

[0018] The first direction displacement member is configured to enable the plunger to move above the nut and enable the plunger to push the nut to the nut upper position.

[0019] Optionally, the second loading assembly includes:

[0020] A third directional displacement member of the pushing rod driven by the driving member to move along the first direction and a pushing rod arranged at an output end of the third directional displacement member of the pushing rod;

[0021] The third direction displacement member of the push rod is configured to enable the push rod to move along the third direction so as to move the push rod into the feeding channel;

[0022] The driving member is configured to move the pushing rod along the first direction to above the loading channel and to be located on a side of the nut loading position away from the positioning groove, and to enable the pushing rod to push the nut located at the nut loading position and press it against the positioning groove.

[0023] Optionally, a pushing groove matching the shape of the nut is formed at the end of the pushing rod.

[0024] Optionally, a buffer component is provided on the second feeding assembly, and the buffer component is configured to reduce the impact force of the pushing rod on the nut when the pushing rod pushes the nut located at the nut feeding position and abuts against the positioning groove.

[0025] Optionally, the buffer component includes:

[0026] An elastic member, one end of which is connected to the output end of the first directional displacement member, and the other end of which is connected to the third directional displacement member of the push rod, and the elastic member is configured to be able to perform telescopic movement along the first direction.

[0027] Optionally, a bolt avoidance hole is provided at the bottom of the positioning groove.

[0028] The beneficial effects of the present invention are:

[0029] The nut feeding and positioning device provided by the present invention has a feeding mechanism provided with a feeding channel for conveying nuts along a first direction. The positioning mechanism is provided with a feeding channel along a first direction, one end of which is connected to the feeding channel, and the other end forms a positioning groove for positioning the nuts. The feeding mechanism includes a first feeding component and a second feeding component provided above the feeding channel and the feeding channel, the first feeding component can push the nuts one by one to the nut feeding position, and the second feeding component can push the nuts located at the nut feeding position along the feeding channel into the positioning groove. The present invention conveys the nuts to the positioning groove one by one through the feeding mechanism, realizes automatic feeding of the nuts, and realizes the positioning of the nuts through the positioning groove, which can accurately realize automatic feeding and accurate positioning of the nuts, reduce labor costs, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the nut feeding and positioning device provided by the present invention;

[0031] Figure 2 It is a structural schematic diagram of the nut feeding and positioning device provided by the present invention, with the vibrating feeding plate and the linear vibrating feeding component hidden;

[0032] Figure 3 It is a schematic diagram of the disassembled structure of the feeding channel and the clamping assembly provided by the present invention;

[0033] Figure 4 It is a partial structural schematic diagram of the end portion of the positioning mechanism provided by the present invention connected to the feeding mechanism;

[0034] Figure 5 It is a schematic diagram of the connection structure of the first direction displacement member and the buffer component provided by the present invention;

[0035] Figure 6 It is a structural schematic diagram of the plug rod provided by the present invention;

[0036] Figure 7 It is a structural schematic diagram of the push rod provided by the present invention;

[0037] Figure 8 It is a structural schematic diagram of the positioning mechanism provided by the present invention.

[0038] In the figure:

[0039] X-first direction; Y-second direction; Z-third direction;

[0040] 100-feeding mechanism; 200-positioning mechanism; 300-blocking mechanism; 400-loading mechanism;

[0041] 110-feeding channel; 120-vibrating feeding plate; 130-linear vibrating feeding component; 140-upper baffle; 210-feeding channel; 220-positioning slot; 230-positioning sensor; 310-positioning assembly; 410-first feeding assembly; 420-second feeding assembly; 430-first direction displacement member; 440-buffer component;

[0042] 111-avoidance groove; 211-through hole for blocking material sensor; 221-avoidance hole for bolt; 231-translucent through hole; 311-positioning convex rod; 312-positioning linear cylinder; 313-positioning bracket; 411-third directional displacement member of the insertion rod; 412-insertion rod; 421-third directional displacement member of the push rod; 422-push rod; 431-bottom bracket of the displacement member; 432-servo drive motor; 433-first direction transmission screw rod; 434-first direction transmission slider; 435-first direction displacement support plate; 436-insertion rod support seat; 441-guide member; 442-elastic member; 443-push support seat; 444-positioning block;

[0043] 4121-plug; 4122-plug connecting arm; 4221-push groove; 4222-nut clamping part; 4223-push rod connecting part; 4411-slider; 4412-guide rail. DETAILED DESCRIPTION

[0044] In order to make the technical problem solved by the present invention, the technical solution adopted and the technical effect achieved more clearly, the technical solution of the present invention is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, specific direction structure and operation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0048] like Figure 1 and Figure 2As shown, the structural schematic diagram of the nut feeding and positioning device of the present embodiment, in which the X direction represents the first direction, the Y direction represents the second direction, and the Z direction represents the third direction. The fastener assembly of the PCB board refers to the process of screwing and assembling the bolts and nuts in the holes of the PCB board during the assembly process. The nut feeding and positioning device of the present embodiment is mainly used for feeding and positioning nuts when the fasteners are assembled on the PCB board, and it includes a feeding mechanism 100, a positioning mechanism 200 and a feeding mechanism 400. The feeding mechanism 100 is provided with a feeding channel 110 for conveying nuts along the first direction, and the nuts are automatically conveyed through the feeding channel 110, avoiding the manual addition of nuts, saving time and labor. The positioning mechanism 200 is provided with a feeding channel 210 along the first direction, one end of the feeding channel 210 is connected to the feeding channel 110, and the other end forms a positioning groove 220 for positioning the nut. After the nut is transported to the positioning groove 220, the position is fixed. The feeding mechanism 400 includes a first feeding assembly 410 and a second feeding assembly 420 arranged above the feeding channel 110 and the feeding channel 210. The first feeding assembly 410 can push the nuts one by one to the nut loading position. The second feeding assembly 420 can push the nuts located at the nut loading position along the feeding channel 210 into the positioning groove 220.

[0049] In this embodiment, the nuts are transported to the positioning groove 220 one by one through the feeding mechanism 400, so that the nuts are automatically fed and positioned through the positioning groove 220, which can realize automatic feeding and accurate positioning of the nuts, reduce labor costs, and improve production efficiency. In addition, in this embodiment, the nuts enter the feeding channel 210 from the feeding channel 110 and are finally positioned in the positioning groove 220. The entire nut feeding and positioning process is simple, which effectively ensures the working efficiency of nut feeding and positioning.

[0050] In order to ensure that the nut can be automatically transported along the feeding channel 110, as shown in FIG. Figure 1 and Figure 2As shown, in this embodiment, the feeding mechanism 100 uses a vibrating feeding tray 120 and a linear vibrating feeding component 130. A plurality of nuts are contained in the vibrating feeding tray 120, and then the nuts are transported one by one to the feeding channel 110 through the vibration of the vibrating feeding tray 120. Furthermore, the linear vibration of the linear vibrating feeding component 130 is used to further drive the nuts in the feeding channel 110 to perform a conveying motion, thereby realizing automatic conveying and feeding of the nuts. Among them, the linear vibrating feeding component 130 is a linear vibrating feeder, and the vibrating feeding tray 120 is a disc feeder. Since the linear vibrating feeder and the disc feeder are prior arts in this field, their internal structures and constructions will not be described in detail. In addition, in other embodiments, a combination of a disc feeder and a stepping conveyor can also be used to realize automatic feeding of nuts. The nuts are continuously fed into the feeding channel 110 by the disc feeder, and a stepping conveyor is arranged at the bottom of the feeding channel 110. The nuts fall from the disc feeder onto the stepping conveyor in the feeding channel 110, and then the stepping conveyor realizes feeding of the nuts one by one. Specifically, the stepping conveyor can be a stepping belt conveyor. Since it is a prior art, its internal structure and connection relationship will not be described in detail.

[0051] Since the linear vibration feeding component 130 is used in the present embodiment to drive the nuts in the feeding channel 110 to perform conveying motion, in order to prevent the nuts from being vibrated out of the feeding channel 110 due to excessive vibration and to ensure that the nuts in the feeding channel 110 can be conveyed neatly and orderly, as shown in FIG. Figure 1 and Figure 2 As shown, in this embodiment, an upper baffle plate 140 is also provided directly above the feed channel 110. The upper baffle plate 140 blocks the nuts at the upper part of the feed channel 110, thereby preventing the nuts from being vibrated out of the feed channel 110 due to vibration, so that the nuts in the feed channel 110 can be neatly arranged and transported. In addition, the upper baffle plate 140 is fixed to the upper part of the feed channel 110 by bolts, which is easy to disassemble and convenient for maintenance by the operator.

[0052] When the nuts can be automatically transported along the feeding channel 110, in order to realize automatic control of the nuts being fed into the positioning groove 220 one by one, as shown in FIG. Figure 1 and Figure 2As shown, the nut feeding and positioning device of this embodiment further includes a blocking mechanism 300, which is arranged at an upstream position of the nut feeding position. When a nut on the feeding channel 110 is transported through the blocking mechanism 300, the blocking mechanism 300 can limit the movement of the remaining nuts, and the movement of the remaining nuts is limited by the blocking mechanism 300, thereby realizing the feeding of the nuts one by one. The blocking mechanism 300 in this embodiment is arranged on one end of the feeding channel 110 connected to the feeding channel 210. In other embodiments, the blocking mechanism 300 can also be arranged on the feeding channel 210 located at an upstream position of the nut feeding position.

[0053] Among them, Figure 1 and Figure 2 As shown, in this embodiment, the material blocking mechanism 300 includes a positioning component 310, which is arranged on one end of the feed channel 110 connected to the loading channel 210. It can move along the second direction and position the next nut adjacent to the nut pushed by the first loading component 410.

[0054] Specifically, Figure 2 and Figure 3 As shown, the positioning assembly 310 includes a positioning convex rod 311, a positioning linear cylinder 312 and a positioning bracket 313. The positioning convex rod 311 is installed at the output end of the positioning linear cylinder 312, and the positioning linear cylinder 312 is fixed on the positioning bracket 313. The positioning bracket 313 is fixedly installed on one end of the feeding channel 110 connected to the feeding channel 210 by bolts. At the same time, the side wall of the feeding channel 110 corresponding to the positioning convex rod 311 is provided with a avoidance groove 111 connected to the feeding channel 110 along the second direction. The positioning convex rod 311 is penetrated in the avoidance groove 111, and the positioning convex rod 311 can reciprocate along the second direction to extend into or extend out of the feeding channel 110, thereby positioning the next nut adjacent to the nut pushed by the first feeding assembly 410. Among them, the positioning linear cylinder 312 is a common linear cylinder, which is used to provide a driving force for the movement of the positioning convex rod 311.

[0055] In order to realize that after a nut on the feeding channel 110 is conveyed through the positioning assembly 310 of the material blocking mechanism 300, the positioning assembly 310 can automatically limit the remaining nuts, such as Figure 3 and Figure 4As shown, the bottom of the loading channel 210 of this embodiment is provided with a material blocking sensor through hole 211 at one end connected to the feeding channel 110, and a material blocking sensor (not shown in the figure) is installed in the material blocking sensor through hole 211, and the distance from the sensing position of the material blocking sensor to the avoidance groove 111 along the first direction is the same as the outer diameter length of a nut in the feeding channel 110 along the first direction. This design enables a nut in the feeding channel 110 to enter the loading channel 210 and move a distance equal to the outer diameter length of a nut along the first direction, and the material blocking sensor can sense the nut and feedback a signal to the controller (not shown in the figure), and the controller controls the positioning linear cylinder 312 of the positioning assembly 310 to extend, so that the positioning convex rod 311 can move along the second direction to extend into the feeding channel 110 and press against the next nut adjacent to the nut pushed by the first loading assembly 410 to prevent it from moving. At the same time, the vibrating feeding plate 120 and the linear vibrating feeding component 130 in this embodiment stop vibrating, and then stop feeding. In this embodiment, the material blocking sensor is used to sense the feeding state of the nut in actual work, and then the locking convex rod 311 is automatically controlled to lock the nut, thereby realizing the automation of the locking process of the nut. Among them, the material blocking sensor in this embodiment is a position sensor, which belongs to the prior art, and the controller is also the prior art in this field, so its internal circuit and related structural connection relationship are not described in detail.

[0056] Under the premise that the blocking mechanism 300 and the feeding mechanism 100 transport the nuts on the feeding channel 110 one by one to the feeding channel 210 of the positioning mechanism 200, in order to continue to automatically transport the nuts to the nut loading position, such as Figure 2 and Figure 5 As shown, the first loading assembly 410 includes a first direction displacement member 430, a third direction displacement member 411 of an inserted rod that moves in a first direction driven by the first direction displacement member 430, and an inserted rod 412 disposed at the output end of the third direction displacement member 411 of the inserted rod. The third direction displacement member 411 of the inserted rod can move the inserted rod 412 in a third direction to be inserted into the screw hole of the nut. The first direction displacement member 430 can move the inserted rod 412 above the nut and push the nut to the nut loading position.

[0057] Specifically, Figure 5 and Figure 6 As shown, in this embodiment, the first direction displacement member 430 includes a displacement member bottom bracket 431, a servo drive motor 432, a first direction transmission screw 433, a first direction transmission slider 434, and a first direction displacement support plate 435. The plug 412 includes a plug 4121 and a plug connecting arm 4122. The plug 4121 is rod-shaped and can be inserted into the screw hole of the nut, and its diameter is smaller than the hole diameter of the screw hole of the nut.

[0058] The servo drive motor 432 is mounted on the bottom bracket 431 of the displacement member, and is in transmission connection with the first direction transmission screw 433 mounted on the bottom bracket 431 of the displacement member, the first direction transmission screw 433 is provided with a first direction transmission slider 434, the first direction displacement support plate 435 is bolted to the first direction transmission slider 434, the first direction displacement support plate 435 is provided with a plunger support seat 436 located directly above the feeding channel 110, the plunger third direction displacement member 411 is bolted and fixed to the plunger support seat 436, the plug connection arm 4122 is installed on the output end of the plunger third direction displacement member 411, and the plug 4121 is plugged into the plug connection arm 4122. Among them, the plunger third direction displacement member 411 is a linear cylinder.

[0059] During operation, the servo drive motor 432 drives the first direction transmission screw 433 to rotate, and then the first direction transmission slider 434 drives the first direction displacement support plate 435 to slide along the first direction, so that the insertion rod 412 can move along the first direction to above the nut that has been conveyed to the loading channel 210, and the third direction displacement member 411 of the insertion rod enables the insertion rod 412 to move along the third direction to be inserted into the screw hole of the nut, and then the servo drive motor 432 continues to drive the insertion rod 412 to move along the first direction toward the nut loading position, thereby conveying the nut to the nut loading position.

[0060] In order to realize the automatic conveying of the nut located at the nut upper position to the positioning groove 220, as shown in FIG. Figure 2 and Figure 7 As shown, the second feeding assembly 420 includes a third directional displacement member 421 of a pushing rod driven by a driving member to move along a first direction, and a pushing rod 422 arranged at the output end of the third directional displacement member 421 of the pushing rod. The third directional displacement member 421 of the pushing rod can move the pushing rod 422 along the third direction so as to move it into the feeding channel 210. The driving member can move the pushing rod 422 along the first direction to a side above the feeding channel 210 and located at a nut feeding position away from the positioning groove 220, and enable the pushing rod 422 to push and press the nut located at the nut feeding position into the positioning groove 220. Preferably, the driving member in this embodiment is a first directional displacement member 430. In other embodiments, a linear motion driving mechanism can also be designed separately to drive the pushing rod 422 to move along the first direction. This embodiment uses a first direction displacement member 430 to simultaneously drive the push rod 422 and the insertion rod 412 to move along the first direction, which simplifies the design structure of the nut feeding and positioning device, reduces the design cost, and makes the structure of the nut feeding and positioning device more compact.

[0061] Specifically, Figure 2 and Figure 7As shown, the third directional displacement member 421 of the push rod is a linear cylinder, and the push rod 422 includes a nut clamping portion 4222 and a push rod connecting portion 4223. The nut clamping portion 4222 and the push rod connecting portion 4223 are integrally formed, and the width of the nut clamping portion 4222 is smaller than the width of the feeding channel 210 to ensure that the nut clamping portion 4222 can fall into the feeding channel 210, and the push rod connecting portion 4223 is connected to the output end of the third directional displacement member 421 of the push rod. Preferably, the end of the nut clamping portion 4222 that presses the nut is provided with a pushing groove 4221 that matches the shape of the nut. In the process of pushing the nut, the pushing groove 4221 can play a role in calibrating the position of the nut, so that the nut can be more accurately delivered to the positioning groove 220.

[0062] In addition, when the push rod 422 pushes and presses the nut into the positioning groove 220, if the displacement of the push rod 422 in the first direction is too large, on the one hand, it is easy to cause the push rod 422 to push the nut against the positioning groove 220 due to excessive force, resulting in crushing damage, and on the other hand, it is easy to cause the nut to pop out of the positioning groove 220 due to excessive impact and squeezing force, thereby failing to complete the normal positioning of the nut and the subsequent assembly of the bolt and nut on the PCB board. Moreover, if the push rod 422 cannot move after directly pressing the nut into the positioning groove 220, it is easy to cause the nut to be squeezed and restricted too tight and unable to move. This makes it difficult to correct the position of the nut and the bolt when the relative position of the screw hole of the nut deviates from the hole position on the PCB board and the screw rod of the subsequently installed bolt. Figure 2 and Figure 5 As shown, in this embodiment, a buffer component 440 is provided on the second feeding assembly 420, and the buffer component 440 is configured to reduce the impact force of the push rod 422 on the nut when the push rod 422 pushes the nut located at the nut feeding position and abuts against the positioning groove 220. On the one hand, the buffer component 440 can reduce the impact force to prevent the nut from being impacted and pressed out of the positioning groove 220 or the push rod 422 from being crushed and damaged by excessive force. On the other hand, the buffer component 440 enables the positions of the nut and the push rod 422 to be properly moved after the push rod 422 presses the nut against the positioning groove 220, and then when the screw hole of the nut is relative to the hole position of the PCB board or the screw rod of the bolt is offset, the position can be properly moved to correct the deviation, which is conducive to improving the assembly efficiency of the PCB board assembly bolt and nut fasteners, and improving the assembly success rate and assembly efficiency.

[0063] Among them, Figure 5As shown, the buffer component 440 includes a guide component 441, an elastic component 442, a push support seat 443 and a positioning block 444, and the guide component 441 includes a slider 4411 and a guide rail 4412. The guide component 441 is used to enable the third directional displacement component 421 of the push rod to move along the first direction relative to the first directional displacement support plate 435. The positioning block 444 allows the third directional displacement component 421 of the push rod to limit the reciprocating movement on the guide component 441.

[0064] Specifically, Figure 5 As shown, the guide rail 4412 is arranged on the first direction displacement support plate 435 along the first direction and is located on one side of the elastic member 442, the slider 4411 is slidably inserted on the guide rail 4412, the pushing support seat 443 is arranged on the slider 4411, the pushing rod third direction displacement member 421 is arranged on the pushing support seat 443, and the positioning block 444 is arranged at one end of the guide rail 4412 close to the positioning groove 220, and the pushing support seat 443 abuts against the positioning block 444. One end of the elastic member 442 is connected to the positioning block 444, and the other end is connected to the slider 4411, so that the pushing support seat 443 equipped with the pushing rod third direction displacement member 421 can reciprocate on the guide rail 4412, realizing the buffering function when the pushing rod 422 pushes and presses the nut into the positioning groove 220.

[0065] In addition, in other embodiments, the buffer component 440 may also be designed with only the elastic member 442. Specifically, the elastic member 442 is installed between the third directional displacement member 421 of the push rod and the push support seat 443. The elastic member 442 may be an elastic buffer rubber pad, which can also play a buffering function.

[0066] Finally, after the nut is conveyed and positioned in the positioning groove 220, in order to realize accurate positioning of the nut in the positioning groove 220, it is convenient for subsequent PCB board fastener assembly work to proceed. Figure 8 As shown, the nut is a hexagonal nut, and the positioning groove 220 is a V-shaped groove that matches the shape of the nut. The nut delivered into the positioning groove 220 is first positioned by the positioning groove 220. The correct position of the nut ensures that when the fastener is assembled on the subsequent PCB board, the bolt will not be unable to be inserted into the screw hole of the nut due to excessive deviation of the nut.

[0067] In this embodiment, the positioning of the nut is more accurate and reliable through the coordinated positioning of the positioning groove 220 and the pushing groove 4221 on the pushing rod 422, thereby improving the accuracy of positioning, thereby improving the accuracy of inserting the bolt into the screw hole of the nut during PCB board assembly, thereby improving the overall work efficiency.

[0068] Furthermore, during the process of fastener assembly on the PCB board, the screw knob of the bolt is screwed into the screw hole of the nut. As the screwing depth increases, the end of the screw will extend out of the nut. Since the nut is located in the positioning groove 220, when the screw rod extends out of the screw hole, it is easy to abut against the bottom of the positioning groove 220, thereby affecting the further screwing of the bolt, resulting in the knob not being tightened in place. Preferably, as Figure 8 As shown, a bolt avoidance hole 221 is provided at the bottom of the positioning groove 220 of the present embodiment, so that the knob screw can be turned when the screw rod extends out of the screw hole without the problem of the screw rod abutting against the bottom of the positioning groove 220, so that the bolt and the nut can be better connected with the knob, ensuring the assembly of the PCB board fasteners.

[0069] In addition, when a PCB board is fastened and assembled and the PCB is removed, so that the nut is removed from the positioning groove 220, the nut feeding and positioning device can automatically transport the next nut to the positioning groove 220. Figure 8 As shown, a positioning sensor 230 is provided on one side of the positioning groove 220 of the present embodiment, and the positioning sensor 230 is used to sense the nut in the positioning groove 220. Specifically, a light-transmitting through hole 231 is provided on one side of the positioning groove 220, and the positioning sensor 230 can sense whether there is a nut in the positioning groove 220 through the light-transmitting through hole 231. When the positioning sensor 230 senses that there is a nut in the positioning groove 220, the nut feeding and positioning device stops automatically conveying the next nut. When the positioning sensor 230 senses that there is no nut in the positioning groove 220, the nut feeding and positioning device can automatically convey the next nut, thereby realizing the continuous automatic feeding and positioning of the nut by the nut feeding and positioning device. Since the positioning sensor 230 is a position sensor, and since it is a prior art, its structure and connection relationship will not be described in detail.

[0070] In this embodiment, two feed channels 110 and two loading channels 210 are arranged side by side, and there are two corresponding positioning grooves 220. The nuts can be synchronously conveyed to the respective positioning grooves 220 through the first loading assembly 410 and the second loading assembly 420. In other embodiments, only one or more feed channels 110 and loading channels 210 can be designed, and the specific number can be designed according to the actual fastener processing requirements of the PCB board.

[0071] The working process of nut loading, positioning and PCB board fastener assembly in this embodiment is as follows:

[0072] 1) The nut feeding and positioning device is in the initial working state, and the first feeding assembly 410 and the second feeding assembly 420 are located above the feeding channel 110 and the feeding channel 210. The vibrating feeding tray 120 and the linear vibrating feeding component 130 start to work, and the nuts in the vibrating feeding tray 120 are arranged in a row and successively transported to the feeding channel 110 through vibration, and the nuts are further transported to the feeding channel 210 through the linear vibrating feeding component 130.

[0073] 2) After a nut in the feeding channel 110 enters the feeding channel 210 and moves a distance equal to the outer diameter length of a nut along the first direction, the blocking sensor senses the nut and feeds back a signal to the controller, which controls the linear cylinder 312 of the positioning assembly 310 to extend, thereby enabling the positioning convex rod 311 to move along the second direction into the feeding channel 110 and press against the next nut adjacent to the nut to prevent it from moving, thereby achieving the limited positioning of the nut. At the same time, the vibrating feeding plate 120 and the linear vibrating feeding component 130 stop vibrating and stop feeding.

[0074] 3) The servo drive motor 432 drives the first direction transmission screw 433 to rotate, thereby causing the first direction transmission slider 434 to drive the first direction displacement support plate 435 to slide along the first direction, so that the insertion rod 412 can move along the first direction to above the nut that has been conveyed to the loading channel 210, and the insertion rod third direction displacement member 411 enables the insertion rod 412 to move along the third direction to be inserted into the screw hole of the nut, and then the servo drive motor 432 continues to drive the insertion rod 412 to move along the first direction toward the nut loading position, thereby conveying the nut to the nut loading position.

[0075] 4) The servo drive motor 432 drives the first direction transmission screw 433 to rotate, thereby causing the first direction transmission slider 434 to drive the first direction displacement support plate 435 to slide along the first direction, so that the pushing rod 422 moves along the first direction to above the loading channel 210 and is located on the side of the nut loading position away from the positioning groove 220, and the pushing rod third direction displacement member 421 causes the pushing rod 422 to move into the loading channel 210, and then the servo drive motor 432 continues to drive the pushing rod 422 to move along the first direction, thereby pushing and pressing the nut against the positioning groove 220.

[0076] 5) The operator places the PCB board on the positioning mechanism 200 and adjusts the position of the PCB board so that the holes on the PCB board are aligned with the screw holes of the nuts in the positioning slots 220 and communicate with each other.

[0077] 6) The bolt is delivered to the top of the positioning groove 220 by other automated equipment, and the knob assembly of the bolt and the nut is completed, thereby completing the loading and positioning of a nut and the fastener assembly of the PCB board.

[0078] 7) The operator removes the assembled PCB board, and there is no nut in the positioning slot 220. When the positioning sensor 230 senses that there is no nut in the positioning slot 220, the nut feeding and positioning device can automatically start the next nut and convey it, thereby realizing the continuous automatic feeding and positioning of the nuts by the nut feeding and positioning device.

[0079] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A nut feeding and positioning device, characterized in that: include: A feeding mechanism (100), which is provided with a feeding channel (110) for conveying nuts along a first direction; A positioning mechanism (200), which is provided with a feeding channel (210) along the first direction, one end of the feeding channel (210) is connected to the feeding channel (110), and the other end forms a positioning groove (220) for positioning the nut; A feeding mechanism (400) comprising a first feeding assembly (410) and a second feeding assembly (420) arranged above the feeding channel (110) and the feeding channel (210), wherein the first feeding assembly (410) is configured to push the nuts one by one to a nut feeding position; and the second feeding assembly (420) is configured to push the nuts located at the nut feeding position along the feeding channel (210) into the positioning groove (220); The first loading component (410) comprises: A first directional displacement member (430), a third directional displacement member (411) for an insertion rod that is driven by the first directional displacement member (430) to move along the first direction, and an insertion rod (412) disposed at an output end of the third directional displacement member (411) for the insertion rod; The insertion rod third direction displacement member (411) is configured to enable the insertion rod (412) to move along the third direction so as to be inserted into the screw hole of the nut; The first direction displacement member (430) is configured to enable the insertion rod (412) to move above the nut and enable the insertion rod (412) to push the nut to the nut upper position; The second loading component (420) comprises: A third directional displacement member (421) of the pushing rod driven by the driving member to move along the first direction, and a pushing rod (422) arranged at the output end of the third directional displacement member (421) of the pushing rod; The pushing rod third direction displacement member (421) is configured to enable the pushing rod (422) to move along the third direction so as to move it into the loading channel (210); The driving member is configured to move the pushing rod (422) along the first direction to above the loading channel (210) and to be located on a side of the nut loading position away from the positioning groove (220), and to enable the pushing rod (422) to push the nut located at the nut loading position and press it against the positioning groove (220).

2. The nut feeding and positioning device according to claim 1, characterized in that: The nut feeding and positioning device also includes: The material blocking mechanism (300) is disposed upstream of the nut upper material position and is configured such that when one of the nut on the feed channel (110) is transported through the material blocking mechanism (300), the material blocking mechanism (300) can limit the positions of the remaining nuts.

3. The nut feeding and positioning device according to claim 2, characterized in that: The material blocking mechanism (300) comprises a positioning assembly (310), which is arranged at an upstream position of the nut loading position and is configured to move along a second direction and position the next nut adjacent to the nut pushed by the first loading assembly (410), wherein the second direction is perpendicular to the first direction.

4. The nut feeding and positioning device according to claim 3, characterized in that: The locking assembly (310) includes a locking protrusion (311), and a avoiding groove (111) is opened along the second direction on the side wall at the upstream position of the nut loading position, the locking protrusion (311) is inserted into the avoiding groove (111), and the locking protrusion (311) can move along the second direction to lock the next nut adjacent to the nut pushed by the first loading assembly (410).

5. The nut feeding and positioning device according to claim 1, characterized in that: The end of the pushing rod (422) is provided with a pushing groove (4221) matching the shape of the nut.

6. The nut feeding and positioning device according to claim 1, characterized in that: A buffer component (440) is provided on the second loading assembly (420), and the buffer component (440) is configured to reduce the impact force of the pushing rod (422) on the nut when the pushing rod (422) pushes the nut located at the nut loading position and abuts against the positioning groove (220).

7. The nut feeding and positioning device according to claim 6, characterized in that: The buffer component (440) comprises: An elastic member (442) has one end connected to the output end of the first-direction displacement member (430) and the other end connected to the third-direction displacement member (421) of the push rod. The elastic member (442) is configured to be capable of telescopic movement along the first direction.

8. The nut feeding and positioning device according to claim 1, characterized in that: A bolt avoidance hole (221) is provided at the bottom of the positioning groove (220).

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