Automatic metal support feeding device

Abstract

The invention discloses an automatic metal support feeding device, and belongs to the technical field of metal support feeding. The device comprises a workbench, a working turntable, a plurality of bracket positioning mechanisms and an air exhaust mechanism are arranged on the workbench, the working turntable is rotationally arranged on the workbench, and the bracket positioning mechanisms are circumferentially and uniformly distributed on the workbench; the air exhaust mechanism is used for adsorbing and fixing the metal bracket; the support positioning mechanism comprises a station platform, and a positioning block and an air suction hole are arranged on the station platform. The rotating disc driving mechanism comprises a driving cam, a grooved wheel shifting rod, a power main shaft, a rotating disc driving motor and a plurality of driven grooved wheels, and the driven grooved wheels are arranged at the bottom of the working rotating disc and correspond to the support positioning mechanisms. The automatic feeding device is compact in structure and convenient to operate, automatic feeding of the metal supports is achieved, the feeding efficiency of the metal supports is greatly improved, the production cost and the labor cost are reduced, feeding and positioning of the metal supports are stable, and the machining quality of the metal supports is greatly improved.

Description

Technical Field

[0001] The present invention relates to an automatic feeding device for metal brackets, belonging to the technical field of metal bracket feeding. Background Art

[0002] In the electronic systems, engines, etc. in the aerospace field, there are many circuits. Currently, metal brackets are mostly used to fix and support the circuits. For different installation spaces, there are different types of metal brackets, mainly two structures. One is the L-shaped metal bracket, and the other is a metal bracket with a structure similar to the Z-shaped and having two 90-degree bends. After the metal brackets are processed, they are generally marked on the metal bracket products according to requirements. Due to the special product shape of the metal brackets, when the metal brackets are placed at the processing position of the marking equipment, the center of gravity often shifts, and it is impossible to achieve the flat placement of the metal brackets, which brings great difficulties to the marking of the metal brackets.

[0003] Currently, the marking of metal brackets is carried out by manually clamping the workpiece with the hand and sending it to the front of the pad printer for marking. Manual clamping is used. Since the width of the metal bracket is small, the hand can only clamp a very small part, and it is laborious to clamp by hand. Moreover, due to the uneven placement of the workpiece, the marking position of the metal bracket often deviates, and even the marking content is blurred, which affects the marking quality of the metal bracket. In addition, manual processing can only be carried out for single-piece processing, and the processing efficiency is very low, and it cannot meet the requirements of the output of metal brackets. Therefore, an automatic feeding device for metal brackets that can realize automatic feeding of metal brackets, improve the feeding efficiency of metal brackets and the processing quality of metal brackets is needed. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automatic feeding device for metal brackets.

[0005] The technical solution for the present invention to solve the above technical problems is as follows: An automatic feeding device for metal brackets includes a workbench. A work turntable, a plurality of bracket positioning mechanisms and an air extraction mechanism are provided on the workbench. The work turntable is rotatably arranged on the workbench, and the work turntable can drive the metal brackets to rotate to each working position under the action of a turntable driving mechanism; a plurality of the bracket positioning mechanisms are circumferentially and evenly distributed on the workbench; the air extraction mechanism is used to adsorb and fix the metal brackets on the bracket positioning mechanisms; The bracket positioning mechanism includes a station platform. A positioning block for positioning the metal bracket and a suction hole for adsorbing the metal bracket are provided on the station platform. An air passage is provided inside the station platform. One end of the air passage communicates with the suction hole, and the other end communicates with the suction pipe of the air extraction mechanism; The turntable driving mechanism includes a driving cam, a groove wheel lever, a power spindle, a turntable driving motor and a plurality of driven groove wheels. The plurality of driven groove wheels are respectively arranged at the bottom of the working turntable and are arranged corresponding to the bracket positioning mechanism. The output shaft of the turntable driving motor is connected to the power spindle, one end of the groove wheel lever is connected to the power spindle, and a driving cam is provided on the other end. The driving cam can be inserted into the groove of the driven groove wheel to drive the working turntable to rotate.

[0006] The beneficial effects of the present invention are as follows: the turntable driving motor drives the power spindle to rotate, the power spindle drives the driving cam on the groove wheel lever to be inserted into the driven groove wheel at the bottom of the turntable one by one, and the working turntable is rotated. The groove wheel lever can realize a split motion each time it is toggled, and the metal bracket can rotate one station. Under the action of the turntable driving mechanism, the working turntable can stably and accurately drive the metal bracket to rotate at each station, ensuring the continuity and stability of the metal bracket feeding; the metal bracket is not only supported and positioned by the positioning block and the station platform, but also fixed on the station platform by adsorption through the exhaust mechanism, the metal bracket is stably positioned, and will not be displaced due to the rotation of the working turntable, which can meet the positioning requirements of the metal bracket at the processing station and ensure the processing quality of the metal bracket. In short, the present invention has a compact structure and is easy to operate. By setting the working turntable, the bracket positioning mechanism and the exhaust mechanism, the automatic feeding of the metal bracket is realized, the feeding efficiency of the metal bracket is greatly improved, the production cost and labor cost are reduced, the feeding positioning of the metal bracket is stable, and the processing quality of the metal bracket is greatly improved, which has significant economic and social benefits.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a supporting spindle is provided at the center of the workbench, a spindle bearing seat is provided on the outer side of the supporting spindle, and the working turntable is connected to the spindle bearing seat.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that the spindle bearing seat can not only support the working turntable, but also meet the requirement of the working turntable rotating relative to the worktable. The supporting spindle can support the spindle bearing seat. Not only that, the setting of the central supporting spindle also prepares for the arrangement of the vacuum mechanism for adsorbing and fixing the metal bracket.

[0010] Further, the air extraction mechanism includes an air distribution valve, a sliding sleeve, a main air pipe, an air extraction fan and an air extraction pipe. The support main shaft is provided with a counterbore and at least one radial shaft hole communicating with the counterbore. One end of the main air pipe communicates with the counterbore, and the other end is connected to the air extraction fan. The air distribution valve is sleeved on the support main shaft. The air distribution valve is provided with an air distribution through groove and a plurality of air distribution through holes. The work stations include a blanking station and a plurality of non-blanking stations. The air distribution through groove and the plurality of air distribution through holes are correspondingly arranged at the positions of the non-blanking stations. The sliding sleeve is slidably sleeved on the outside of the air distribution valve. The sliding sleeve is provided with a plurality of air extraction holes, and the plurality of air extraction holes are correspondingly arranged with the bracket positioning mechanism. The air extraction holes communicate with the work station platform through the air extraction pipe.

[0011] The beneficial effect of adopting the above further solution is that the metal bracket is placed on the work station platform, and the metal bracket on the work station platform is adsorbed by the air pressure difference generated by the air extraction mechanism. The rotation of the work turntable will rotate the metal bracket through each work station. Therefore, the air extraction mechanism needs to meet the rotation requirements of the work station platform at different work stations. The air distribution through groove of the air extraction mechanism is arranged at the work stations except the corresponding blanking station. The air distribution through groove is arranged circumferentially along the inner wall and the outer wall of the air distribution valve, which can meet the air path connection during the rotation process and when the rotation is in place of the work turntable. The air distribution through holes are arranged at the corresponding work stations except the blanking station, that is, at the non-blanking stations. No air pressure is generated at the blanking station for the blanking of the metal bracket. Therefore, there is no need to arrange the air distribution through groove and the air distribution through holes at the corresponding blanking station. The sliding sleeve is connected to the work station platform through the air extraction pipe. When the work turntable rotates, it can drive the sliding sleeve to rotate. The air extraction holes on the sliding sleeve will maintain the air path connection through the cooperation with the air distribution through groove during the rotation process. When the rotation is in place, the air extraction holes will have a better air path connection effect with the air distribution through holes, and the adsorption of the metal bracket is more stable. It is precisely through the synergistic effect of the air distribution valve, the sliding sleeve, the main air pipe, the air extraction fan and the air extraction pipe that the air extraction mechanism can maintain the adsorption and fixation effect on the metal bracket when the work station platforms drive the metal bracket to rotate, ensuring the stability of the automatic feeding of the metal bracket.

[0012] Further, a regulating valve is also provided on the air extraction pipe.

[0013] The beneficial effect of adopting the above further solution is that by adding a regulating valve on the air extraction pipe, the size of the pressure difference of each work station can be freely adjusted, so as to meet the requirements of the adsorption effects of metal brackets of different specifications, different materials and different weights, and realize the control of the pressure difference for adsorbing metal brackets at each work station. It not only improves the stability of the adsorption of the metal bracket, but also enhances the adaptability and flexibility of the feeding device.

[0014] Further, a positioning groove for positioning the metal bracket is also provided on the work station platform, and the air suction holes are arranged at the positioning groove.

[0015] The beneficial effects of adopting the above further scheme are as follows. The design of the positioning groove can ensure the precise positioning of the metal bracket on the station platform, improving the accuracy and stability of the adsorption of the metal bracket. At the same time, the suction holes are arranged at the positioning groove, which can more effectively adsorb the metal bracket, avoiding deviation or dropping during the feeding process, thus enhancing the reliability and working efficiency of the entire feeding device.

[0016] Further, the positioning block is arranged on the station platform through a position adjustment mechanism. The position adjustment mechanism includes a movable long hole arranged on the station platform, an adjustment bolt capable of moving along the length direction of the movable long hole, and an adjustment nut arranged at the rod end of the adjustment bolt. The adjustment nut is a square nut, the width direction of the adjustment nut is smaller than the width of the movable long hole, and its length direction is larger than the width of the movable long hole.

[0017] The beneficial effects of adopting the above further scheme are as follows. In order to ensure the positioning stability of metal brackets with different specifications and shapes on the station platform, the positioning block is designed as an adjustable structure. The position of the positioning block on the station platform can be conveniently adjusted through the position adjustment mechanism to adapt to metal brackets of different sizes or shapes, enhancing the versatility and flexibility of the feeding device. In addition, the design of the square nut facilitates its entry into the station platform through the movable long hole. By rotating the adjustment bolt, the adjustment nut can rotate a certain angle, preventing the adjustment nut from slipping out of the movable long hole, and being able to limit and constrain the positioning block. When the position of the positioning block needs to be adjusted, only the positioning block needs to be slid, and the position adjustment of the positioning block is convenient and fast.

[0018] Further, it also includes a locking and positioning mechanism for positioning the working turntable. The locking and positioning mechanism includes a locking slide plate, a locking cam arranged on the locking slide plate, and a locking cylinder for driving the radial movement of the locking slide plate. The working turntable is provided with a plurality of turntable grooves that can be engaged with the locking cam.

[0019] The beneficial effects of adopting the above further scheme are as follows. After the working turntable rotates to the designated position under the action of the turntable driving mechanism, the working turntable can be further limited and constrained through the locking mechanism, avoiding the shaking of the working turntable and affecting the processing quality of the metal bracket at the processing station. The locking and positioning mechanism has a simple structure and convenient operation, and can quickly realize the positioning and unlocking of the working turntable, improving the production efficiency and automation degree of the automatic feeding device for metal brackets. At the same time, the engagement design of the locking cam and the turntable groove makes the locking and positioning more firm and reliable, further ensuring the stability and accuracy of the rotated metal bracket.

[0020] Further, the locking and positioning mechanism also includes a locking bracket. The locking bracket is arranged on the workbench, and the locking slide plate is slidably arranged on the locking bracket through a locking guide rail.

[0021] The beneficial effects of adopting the above further scheme are that the introduction of the locking guide rail not only enhances the guiding property of the movement of the locking slide plate, but also reduces the friction and wear during the sliding process. As a supporting structure, the locking bracket provides an installation foundation for the locking slide plate, ensuring the stability and reliability of the entire locking and positioning mechanism during the working process.

[0022] Furthermore, it further includes a blanking mechanism arranged on the workbench. The blanking mechanism includes a blanking rack, a blanking shifting rod arranged on the blanking rack, a blanking driving mechanism for driving the blanking shifting rod to rotate, and a blanking driving cylinder for driving the blanking shifting rod to perform a lifting action. The piston rod of the blanking driving cylinder is connected to the blanking rack. A shifting rod lifting slot hole for the blanking shifting rod to penetrate is provided on the work turntable. The blanking shifting rod penetrates through the shifting rod lifting slot hole under the action of the blanking driving cylinder. Under the action of the blanking driving mechanism, the rotation of the blanking shifting rod can dial the metal bracket into a material box arranged on the workbench.

[0023] The beneficial effects of adopting the above further scheme are that the blanking mechanism can realize the automatic blanking of the metal bracket, improving the blanking efficiency of the automatic feeding device for the metal bracket. Specifically, the blanking driving cylinder drives the blanking shifting rod to lift, and in cooperation with the blanking driving mechanism, the blanking shifting rod rotates, enabling the metal bracket to be accurately dialed into the material box, realizing the automatic blanking of the metal bracket, saving labor costs, and at the same time preparing for the continuous feeding of the metal bracket. In addition, the blanking mechanism has a compact structure, occupies a small space, and does not interfere with the turnover of the metal bracket between each station.

[0024] Furthermore, there are two blanking shifting rods, namely a left shifting rod and a right shifting rod. The blanking driving mechanism includes a blanking motor. A transmission mechanism is also provided between the blanking motor and the left shifting rod and the right shifting rod. The transmission mechanism includes a driving gear, a left gear, a right gear, and an idler gear. The left gear and the right gear are respectively arranged on the left shifting rod and the right shifting rod. The driving gear is connected to the output shaft of the blanking motor. The driving gear meshes with the left gear through the idler gear, and the driving gear meshes with the right gear.

[0025] The beneficial effects of adopting the above further scheme are that in order to improve the processing efficiency of the metal bracket, there can be two workpiece positions for placing the metal bracket on each station platform. For two metal brackets, two shifting rods can be provided, namely a left shifting rod and a right shifting rod, and the transmission mechanism is used to enable the left shifting rod and the right shifting rod to have different rotation directions and both can dial the two metal brackets into the material box. The reasonable configuration of the transmission mechanism not only realizes the effective transmission of power, but also ensures the smoothness and reliability of the transmission. Description of the Drawings

[0026] Figure 1 Structural schematic diagram of the present invention; Figure 2 Stereoscopic structural schematic diagram of the present invention; Figure 3 Structural schematic diagram of the working turntable and bracket positioning mechanism of the present invention; Figure 4 Structural schematic diagram of the turntable driving mechanism of the present invention; Figure 5 Structural schematic diagram of the cooperation state of the turntable driving mechanism and the working turntable of the present invention; Figure 6 Structural schematic diagram of the working station platform of the present invention; Figure 7 Split structural schematic diagram of the working station platform of the present invention; Figure 8 Structural schematic diagram of the blanking mechanism of the present invention; Figure 9 is Figure 8 Cross-sectional structural schematic diagram along the A-A direction in; Figure 10 Stereoscopic structural schematic diagram of the blanking mechanism of the present invention; Figure 11 Structural schematic diagram of the air extraction mechanism of the present invention; Figure 12 is Figure 11 Top view structural schematic diagram of; Figure 13 is Figure 12 Cross-sectional structural schematic diagram along the B-B direction in; Figure 14 Structural schematic diagram of the air distribution valve and the sliding sleeve of the present invention; Figure 15 Structural schematic diagram of the support main shaft and the main shaft nut of the present invention; Figure 16 Structural schematic diagram of the locking and positioning mechanism of the present invention at Angle 1; Figure 17 Structural schematic diagram of the locking and positioning mechanism of the present invention at Angle 2; Figure 18 Structural schematic diagram of the specific implementation of the automatic feeding device of the present invention; Figure 19 is Figure 18 Top view structural schematic diagram of; In the figure, 100 is the workbench; 200 is the work turntable; 2011 is the turntable groove; 2012 is the lever lifting slot hole; 300 is the bracket positioning mechanism; 301 is the station platform; 3011 is the suction hole; 3012 is the positioning groove; 3013 is the movable long hole; 302 is the positioning block; 303 is the adjusting bolt; 304 is the adjusting nut; 400 is the turntable driving mechanism; 401 is the turntable driving motor; 402 is the grooved wheel lever; 403 is the driving cam; 404 is the driven grooved wheel; 500 is the air extraction mechanism; 501 is the air distribution valve; 5011 is the air distribution through groove; 5012 is the air distribution through hole; 502 is the sliding sleeve; 5021 is the air extraction hole; 503 is the main air pipe; 504 is the air extraction fan; 505 is the air extraction pipe; 506 is the regulating valve; 601 is the supporting main shaft; 6011 is the counterbore; 6012 is the radial shaft hole; 602 is the main shaft nut; 603 is the main shaft bearing seat; 700 is the locking and positioning mechanism; 701 is the locking slide plate; 702 is the locking cam; 703 is the locking cylinder; 704 is the locking bracket; 705 is the locking guide rail; 800 is the blanking mechanism; 801 is the blanking rack; 802 is the material box; 803 is the blanking driving cylinder; 804 is the blanking motor; 805 is the left lever; 806 is the right lever; 807 is the driving gear; 808 is the left gear; 809 is the right gear; 810 is the idler gear; 811 is the blanking slide rail; 900 is the metal bracket; 1001 is the loading station; 1002 is the processing station; 1003 is the drying station; 1004 is the blanking station; 1005 is the transition station; 1100 is the pad printer; 1200 is the manipulator. Detailed implementation mode

[0027] The principles and features of the present invention will be described below in conjunction with examples. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0028] As Figures 1-17 shown, an automatic feeding device for metal brackets includes a workbench 100. A work turntable 200, a plurality of bracket positioning mechanisms 300 and an air extraction mechanism 500 are provided on the workbench 100. The work turntable 200 is rotatably arranged on the workbench 100. Under the action of the turntable driving mechanism 400, the work turntable 200 can drive the metal bracket 900 to rotate to each station; the plurality of bracket positioning mechanisms 300 are circumferentially and evenly distributed on the workbench 100 and are correspondingly arranged with each station; the air extraction mechanism 500 is used to adsorb and fix the metal bracket 900 on the bracket positioning mechanism 300; The bracket positioning mechanism 300 includes a station platform 301, on which a positioning block 302 for positioning the metal bracket 900 and a suction hole 3011 for adsorbing the metal bracket 900 are provided. An air duct is provided inside the station platform 301. One end of the air duct communicates with the suction hole 3011, and the other end is communicated with the suction pipe 505 of the air extraction mechanism 500; The turntable driving mechanism 400 includes a driving cam 403, a grooved wheel lever 402, a power main shaft, a turntable driving motor 401 and a plurality of driven grooved wheels 404. The plurality of driven grooved wheels 404 are respectively arranged at the bottom of the working turntable 200 and are correspondingly arranged with the bracket positioning mechanism 300. The output shaft of the turntable driving motor 401 is connected to the power main shaft. One end of the grooved wheel lever 402 is connected to the power main shaft, and a driving cam 403 is provided at the other end. The driving cam 403 can be inserted and matched with the groove of the driven grooved wheel 404 to drive the working turntable 200 to rotate.

[0029] A support main shaft 601 is provided at the center of the workbench 100. A main shaft bearing seat 603 is sleeved outside the support main shaft 601. The working turntable 200 is connected to the main shaft bearing seat 603. The main shaft bearing seat 603 can not only support the working turntable 200, but also meet the requirement for the working turntable 200 to rotate relative to the workbench 100. The support main shaft 601 can support the main shaft bearing seat 603. Moreover, the setting of the central support main shaft 601 also prepares for the arrangement of the air extraction mechanism 500 for adsorbing and fixing the metal bracket 900.

[0030] The air extraction mechanism 500 includes an air distribution valve 501, a sliding sleeve 502, a main air pipe 503, an air extraction fan 504 and a suction pipe 505. A counterbore 6011 and at least one radial shaft hole 6012 communicating with the counterbore 6011 are provided on the support main shaft 601. If two radial shaft holes 6012 are provided on the support main shaft 601, one end of the main air pipe 503 communicates with the counterbore 6011, and the other end is connected to the air extraction fan 504. The air distribution valve 501 is sleeved on the support main shaft 601. An air distribution groove 5011 and a plurality of air distribution through holes 5012 are provided on the air distribution valve 501. The station includes a blanking station 1004 and a plurality of non-blanking stations. The air distribution groove 5011 and the plurality of air distribution through holes 5012 are correspondingly arranged at the positions of the non-blanking stations. The sliding sleeve 502 is slidably sleeved outside the air distribution valve 501. A plurality of suction holes 5021 are provided on the sliding sleeve 502. The plurality of suction holes 5021 are correspondingly arranged with the bracket positioning mechanism 300. The suction holes 5021 are communicated with the station platform 301 through the suction pipe 505.

[0031] The exhaust pipe 505 can be a flexible pipe. A limiting plate is provided on the sliding sleeve 502, pin holes for installing pins are provided on the working turntable 200, and bayonets adapted to the pins are provided on the limiting plate. The sliding sleeve 502 rotates synchronously with the working turntable 200 through the cooperation of the limiting plate and the pins.

[0032] Place the metal bracket 900 on the station platform 301, and adsorb the metal bracket 900 on the station platform 301 through the air pressure difference generated by the air extraction mechanism 500. The rotation of the working turntable 200 will rotate the metal bracket 900 through each station. Therefore, the air extraction mechanism 500 needs to meet the rotation requirements of the station platform 301 at different stations. The air distribution through groove 5011 of the air extraction mechanism 500 is provided at stations except the corresponding blanking station 1004. The air distribution through groove 5011 is arranged circumferentially along the inner and outer walls of the air distribution valve 501, which can meet the connection of the air path during the rotation process and when the rotation is in place of the working turntable 200. The air distribution through hole 5012 is provided at the corresponding stations except the blanking station 1004, that is, at non-blanking stations. No air pressure is generated at the blanking station 1004 for the blanking of the metal bracket 900. Therefore, there is no need to arrange the air distribution through groove 5011 and the air distribution through hole 5012 at the corresponding blanking station 1004. The sliding sleeve 502 is connected to the station platform 301 through the exhaust pipe 505. When the working turntable 200 rotates, it can drive the sliding sleeve 502 to rotate. The exhaust holes 5021 on the sliding sleeve 502 will maintain the connection of the air path through the cooperation with the air distribution through groove 5011 during the rotation process. When the rotation is in place, the exhaust holes 5021 will have a better corresponding air path connection with the air distribution through holes 5012, and the adsorption of the metal bracket 900 is more stable. It is precisely through the coordinated action of the air distribution valve 501, the sliding sleeve 502, the main air pipe 503, the air extraction fan 504 and the exhaust pipe 505 that the air extraction mechanism 500 can adsorb and fix the metal bracket 900 stably when the multiple station platforms 301 drive the metal bracket 900 to rotate, ensuring the stability of the automatic feeding of the metal bracket 900.

[0033] A regulating valve 506 is further provided on the exhaust pipe 505. When facing metal brackets 900 of different specifications, materials or weights, operators can easily adjust the pressure difference through the regulating valve 506 according to actual needs, ensuring that each metal bracket 900 can be firmly adsorbed and smoothly transported to the next station, effectively reducing the failure rate and material loss caused by unstable adsorption.

[0034] The working station platform 301 is further provided with a positioning groove 3012 for positioning the metal bracket 900, and the suction holes 3011 are arranged at the positioning groove 3012. The design of the positioning groove 3012 can ensure the accurate positioning of the metal bracket 900 on the working station platform 301, improving the accuracy and stability of the adsorption of the metal bracket 900. At the same time, the suction holes 3011 are arranged at the positioning groove 3012, which can more effectively adsorb the metal bracket 900, avoiding deviation or dropping during the feeding process, thereby enhancing the reliability and working efficiency of the entire feeding device.

[0035] The positioning block 302 is arranged on the working station platform 301 through a position adjustment mechanism. The position adjustment mechanism includes a movable long hole 3013 arranged on the working station platform 301, an adjustment bolt 303 capable of moving along the length direction of the movable long hole 3013, and an adjustment nut 304 arranged at the rod end of the adjustment bolt 303. The adjustment nut 304 is a square nut. The width direction of the adjustment nut 304 is smaller than the width of the movable long hole 3013, and its length direction is larger than the width of the movable long hole 3013. In order to ensure the positioning stability of metal brackets 900 with different specifications and shapes on the working station platform 301, the positioning block 302 is designed as an adjustable structure. The position of the positioning block 302 on the working station platform 301 can be conveniently adjusted through the position adjustment mechanism to adapt to metal brackets 900 of different sizes or shapes, enhancing the versatility and flexibility of the feeding device. In addition, the design of the square nut facilitates its entry into the working station platform 301 through the movable long hole 3013. By rotating the adjustment bolt 303, the adjustment nut 304 can rotate a certain angle, preventing the adjustment nut 304 from disengaging from the movable long hole 3013, and being able to limit and constrain the positioning block 302. When the position of the positioning block 302 needs to be adjusted, only the positioning block 302 needs to be slid, and the position adjustment of the positioning block 302 is convenient and fast.

[0036] It further includes a locking and positioning mechanism 700 for positioning the working turntable 200. The locking and positioning mechanism 700 includes a locking slide plate 701, a locking cam 702 provided on the locking slide plate 701, and a locking cylinder 703 for driving the radial movement of the locking slide plate 701. A plurality of turntable grooves 2011 capable of engaging with the locking cam 702 are provided on the working turntable 200. After the working turntable 200 rotates in place under the action of the turntable driving mechanism 400, the locking mechanism can further limit and restrain the working turntable 200 to avoid the shaking of the working turntable 200 from affecting the processing quality of the metal bracket 900 at the processing position. The locking and positioning mechanism 700 has a simple structure and is convenient to operate, and can quickly realize the positioning and unlocking of the working turntable 200, improving the production efficiency and automation degree of the automatic feeding device for metal brackets. At the same time, the engagement design of the locking cam 702 and the turntable groove 2011 makes the locking and positioning more firm and reliable, further ensuring the stability and accuracy of the metal bracket 900 that has rotated in place.

[0037] The locking and positioning mechanism 700 further includes a locking bracket 704. The locking bracket 704 is provided on the workbench 100. The locking slide plate 701 is slidably provided on the locking bracket 704 through a locking guide rail 705. The introduction of the locking guide rail 705 not only enhances the guiding property of the movement of the locking slide plate 701, but also reduces the friction and wear during the sliding process. The locking bracket 704, as a supporting structure, provides an installation basis for the locking slide plate 701, ensuring the stability and reliability of the entire locking and positioning mechanism 700 during the working process.

[0038] It further includes a blanking mechanism 800 disposed on the workbench 100. The blanking mechanism 800 includes a blanking frame 801, a blanking lever disposed on the blanking frame 801, a blanking driving mechanism for driving the blanking lever to rotate, and a blanking driving cylinder 803 for driving the blanking lever to perform a lifting action. The piston rod of the blanking driving cylinder 803 is connected to the blanking frame 801. The blanking driving cylinder 803 can be a cylinder. A lever lifting slot hole 2012 for the blanking lever to pass through is provided on the work turntable 200. The blanking lever passes through the lever lifting slot hole 2012 under the action of the blanking driving cylinder 803. Under the action of the blanking driving mechanism, the rotation of the blanking lever can dial the metal bracket 900 into the material box 802 disposed on the workbench 100. The blanking mechanism 800 can realize the automatic blanking of the metal bracket 900, improve the blanking efficiency of the automatic feeding device for the metal bracket. Specifically, the blanking driving cylinder 803 drives the blanking lever to lift, and cooperates with the blanking driving mechanism to realize the rotation of the blanking lever, which can accurately dial the metal bracket 900 into the material box 802, realizing the automatic blanking of the metal bracket 900, saving labor costs, and at the same time preparing for the continuous feeding of the metal bracket 900. In addition, the blanking mechanism 800 has a compact structure, occupies a small space, and does not interfere with the turnover of the metal bracket 900 between each working station.

[0039] Specifically, there are two blanking levers, namely a left lever 805 and a right lever 806. The blanking driving mechanism includes a blanking motor 804. There is also a transmission mechanism between the blanking motor 804 and the left lever 805 and the right lever 806. The transmission mechanism includes a driving gear 807, a left gear 808, a right gear 809, and an idler gear 810. The left gear 808 is correspondingly disposed on the left lever 805, and the right gear 809 is correspondingly disposed on the right lever 806. The driving gear 807 is connected to the output shaft of the blanking motor 804. The driving gear 807 is meshed with the left gear 808 through the idler gear 810, and the driving gear 807 is meshed with the right gear 809. In order to improve the processing efficiency of the metal bracket 900, there can be two workpiece positions for placing the metal bracket 900 on each working platform 301. For two metal brackets 900, two levers can be provided, namely a left lever 805 and a right lever 806, and the transmission mechanism is used to realize different rotation directions of the left lever 805 and the right lever 806, so as to realize that both can dial the two metal brackets 900 into the material box 802. The reasonable configuration of the transmission mechanism not only realizes the effective transmission of power, but also ensures the smoothness and reliability of the transmission.

[0040] The support spindle 601 is provided with a spindle nut 602, and the spindle nut 602 can constrain the gas distribution valve 501 and the sliding sleeve 502 on the support spindle 601. The spindle nut 602 is threadedly connected to the support spindle 601, so that the gas distribution valve 501 and the sliding sleeve 502 can be firmly constrained on the support spindle 601, avoiding looseness and displacement during the working process, and further improving the stability and reliability of the feeding device.

[0041] The power spindle is key-connected with the grooved wheel lever 402. As a driving component, the grooved wheel lever 402 is connected to the power spindle through a key connection, which ensures the effective transmission of power and the accuracy of rotation, so that the grooved wheel lever 402 can accurately respond to the rotation of the power spindle, thereby realizing the shifting of the working turntable 200.

[0042] The material unloading rack 801 is connected to the workbench 100 through a material unloading guide mechanism, and the material unloading guide mechanism includes a pair of material unloading slide rails 811. Both sides of the material unloading rack 801 are respectively provided with material unloading sliders adapted to the material unloading slide rails 811. The material unloading rack 801 is installed on the workbench 100 through the material unloading guide mechanism, and can guide and limit the lifting and lowering of the material unloading rack 801, further enhancing the stability and accuracy of the up and down movements of the material unloading rack 801; reducing the radial force of the material unloading drive cylinder 803, extending the service life of the material unloading drive cylinder 803, and making the unloading process of the metal bracket 900 smoother and more stable.

[0043] The metal bracket automatic feeding device can be used for marking and processing of metal bracket 900, such as Figure 18 and Figure 19As shown in the figure, it is used to feed the marks of the metal bracket 900. At this time, the workstations include a blanking workstation 1004 and non-blanking workstations. The non-blanking workstations include a loading workstation 1001, a processing workstation 1002, and a drying workstation 1003. During the processing of marking the metal bracket 900, the processing workstation 1002 is the workstation where the pad printer 1100 marks the metal bracket 900. The non-blanking workstations also include a transition workstation 1005 arranged between the loading workstation 1001, the processing workstation 1002, and the drying workstation 1003. The work turntable 200 rotates between each workstation under the action of the turntable driving mechanism 400. According to the shape, specification, and weight of the metal bracket 900 to be marked, the positioning position and adsorption force of the metal bracket 900 are adjusted. The metal bracket 900 is placed on the workstation platform 301 corresponding to the loading workstation 1001 by the manipulator 1200 or manually. The air extraction mechanism 500 acts to adsorb the metal bracket 900 on the workstation platform 301. The turntable driving mechanism 400 acts, and the work turntable 200 rotates to drive the workstation platform 301 to rotate to the next workstation. Each time the grooved wheel lever 402 of the turntable driving mechanism 400 toggles, a sub-motion is achieved. When the metal bracket 900 rotates to the processing workstation 1002, the locking and positioning mechanism 700 acts, and the locking cam 702 is inserted into the turntable groove 2011 to lock the work turntable 200. The pad printer 1100 can mark the metal bracket 900. After the marking of the metal bracket 900 is completed, the locking and positioning mechanism 700 resets, and the work turntable 200 continues to rotate under the action of the grooved wheel lever 402. The marked metal bracket 900 rotates to the next workstation. When the marked metal bracket 900 rotates to the drying workstation 1003, the marking on the metal bracket 900 is dried and processed by the drying mechanism. The drying mechanism can use ultraviolet lamps. The dried metal bracket 900 continues to rotate to the next workstation. When the dried metal bracket 900 rotates to the blanking workstation 1004, the blanking driving cylinder 803 acts, the blanking lever moves upward, the blanking motor 804 acts, and the blanking lever rotates to act on the dried metal bracket 900 to dial it into the material box 802. A plurality of bracket positioning mechanisms 300 are arranged on the metal bracket automatic feeding device. After the previous bracket positioning mechanism 300 feeds the material and rotates to the next workstation, the next bracket positioning mechanism 300 will rotate to the loading workstation 1001 to continue feeding the material. Each bracket positioning mechanism 300 automatically rotates between each workstation, and can complete the stable positioning, marking, drying, and automatic blanking actions of the metal bracket 900, ensuring the continuous operation of the metal bracket automatic feeding device and improving the automatic feeding efficiency of the metal bracket 900.

[0044] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for a metal bracket, comprising a workbench (100), characterized in that, A workbench (100) is provided with a work turntable (200), a plurality of bracket positioning mechanisms (300) and an air extraction mechanism (500). The work turntable (200) is rotatably arranged on the workbench (100), and under the action of a turntable driving mechanism (400), the work turntable (200) can drive a metal bracket (900) to rotate to each working station; the plurality of bracket positioning mechanisms (300) are circumferentially and uniformly distributed on the workbench (100); the air extraction mechanism (500) is used to adsorb and fix the metal bracket (900) on the bracket positioning mechanism (300). The bracket positioning mechanism (300) includes a station platform (301). The station platform (301) is provided with a positioning block (302) for positioning the metal bracket (900) and a suction hole (3011) for adsorbing the metal bracket (900). An air duct is arranged inside the station platform (301). One end of the air duct communicates with the suction hole (3011), and the other end communicates with an air extraction pipe (505) of the air extraction mechanism (500). The turntable driving mechanism (400) includes a driving cam (403), a grooved wheel lever (402), a power main shaft, a turntable driving motor (401) and a plurality of driven grooved wheels (404). The plurality of driven grooved wheels (404) are respectively arranged at the bottom of the work turntable (200) and are arranged corresponding to the bracket positioning mechanism (300). The output shaft of the turntable driving motor (401) is connected to the power main shaft. One end of the grooved wheel lever (402) is connected to the power main shaft, and a driving cam (403) is arranged at the other end. The driving cam (403) can be inserted and matched with the groove of the driven grooved wheel (404) to drive the work turntable (200) to rotate.

2. The automatic feeding device for the metal bracket according to claim 1, wherein, A support main shaft (601) is arranged at the center of the workbench (100). A main shaft bearing seat (603) is sleeved outside the support main shaft (601). The work turntable (200) is connected to the main shaft bearing seat (603).

3. The automatic feeding device for the metal bracket according to claim 2, wherein, The air extraction mechanism (500) includes an air distribution valve (501), a sliding sleeve (502), a main air pipe (503), an air extraction fan (504) and the air extraction pipe (505). A counterbore (6011) and at least one radial shaft hole (6012) communicating with the counterbore (6011) are provided on the support main shaft (601). One end of the main air pipe (503) communicates with the counterbore (6011), and the other end is connected to the air extraction fan (504). The air distribution valve (501) is sleeved on the support main shaft (601). An air distribution through groove (5011) and a plurality of air distribution through holes (5012) are provided on the air distribution valve (501). The work stations include a blanking station (1004) and a plurality of non-blanking stations. The air distribution through groove (5011) and the plurality of air distribution through holes (5012) are correspondingly arranged at the positions of the non-blanking stations. The sliding sleeve (502) is slidably sleeved outside the air distribution valve (501). A plurality of air extraction holes (5021) are provided on the sliding sleeve (502). The plurality of air extraction holes (5021) are correspondingly arranged with the bracket positioning mechanism (300). The air extraction holes (5021) communicate with the work station platform (301) through the air extraction pipe (505).

4. The automatic feeding device for metal brackets according to claim 1, characterized in that, A regulating valve (506) is further provided on the air extraction pipe (505).

5. The automatic feeding device for the metal bracket according to claim 1, characterized in that A positioning groove (3012) for positioning the metal bracket (900) is further provided on the work station platform (301). The air suction hole (3011) is arranged at the positioning groove (3012).

6. The automatic feeding device for metal brackets according to any one of claims 1-5, characterized in that, The positioning block (302) is arranged on the work station platform (301) through a position adjusting mechanism. The position adjusting mechanism includes a movable long hole (3013) arranged on the work station platform (301), an adjusting bolt (303) capable of moving along the length direction of the movable long hole (3013), and an adjusting nut (304) arranged at the rod end of the adjusting bolt (303). The adjusting nut (304) is a square nut. The width direction of the adjusting nut (304) is smaller than the width of the movable long hole (3013), and its length direction is larger than the width of the movable long hole (3013).

7. The automatic feeding device for the metal bracket according to any one of claims 1-5, characterized in that, A locking and positioning mechanism (700) for positioning the work turntable (200) is further included. The locking and positioning mechanism (700) includes a locking slide plate (701), a locking cam (702) arranged on the locking slide plate (701), and a locking cylinder (703) for driving the locking slide plate (701) to move radially. A plurality of turntable grooves (2011) capable of being engaged with the locking cam (702) are provided on the work turntable (200).

8. The automatic feeding device for the metal bracket according to claim 7, wherein, The locking and positioning mechanism (700) further includes a locking bracket (704). The locking bracket (704) is arranged on the workbench (100). The locking slide plate (701) is slidably arranged on the locking bracket (704) through a locking guide rail (705).

9. The automatic feeding device for metal brackets according to any one of claims 1-5, characterized in that It further includes a blanking mechanism (800) disposed on the workbench (100). The blanking mechanism (800) includes a blanking rack (801), a blanking lever disposed on the blanking rack (801), a blanking driving mechanism for driving the blanking lever to rotate, and a blanking driving cylinder (803) for driving the blanking lever to perform a lifting action. The piston rod of the blanking driving cylinder (803) is connected to the blanking rack (801). A lever lifting slot hole (2012) for the blanking lever to pass through is provided on the work turntable (200). The blanking lever passes through the lever lifting slot hole (2012) under the action of the blanking driving cylinder (803). Under the action of the blanking driving mechanism, the rotation of the blanking lever can dial the metal bracket (900) into the material box (802) disposed on the workbench (100).

10. The automatic feeding device for the metal bracket according to claim 9, characterized in that, There are two blanking levers, namely a left lever (805) and a right lever (806). The blanking driving mechanism includes a blanking motor (804). A transmission mechanism is further provided between the blanking motor (804) and the left lever (805) and the right lever (806). The transmission mechanism includes a driving gear (807), a left gear (808), a right gear (809), and an idle gear (810). The left gear (808) and the right gear (809) are respectively disposed on the left lever (805) and the right lever (806). The driving gear (807) is connected to the output shaft of the blanking motor (804). The driving gear (807) is meshed with the left gear (808) through the idle gear (810). The driving gear (807) is meshed with the right gear (809).

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