A feeding variable-pitch positioning system and operation method

Abstract

The application provides a feeding variable-distance positioning system and operation method, sequentially comprising a feeding bin, a plate moving device, a variable-distance material moving device and a secondary positioning device; the feeding bin and the plate moving device are linearly connected, the variable-distance material moving device is arranged above the plate moving device and is connected with the secondary positioning device, the secondary positioning device comprises a material carrying frame with an embedding plate, a plurality of cavities are arranged in the embedding plate, a plurality of clamping notches are arranged on the same side of the cavities, a transmission plate is slidably connected to the top surface of the material carrying frame, the transmission plate is driven and connected by a clamping cylinder, the transmission plate is connected with an X clamping rod through an X direction driving structure, the chuck of the X clamping rod extends into the cavity through the clamping notch, the X clamping rod is connected with a Y clamping block through a Y direction driving structure, and the clamping piece of the Y clamping block extends into the cavity from the bottom side. The secondary positioning adopts one driver to drive two directions to synchronously clamp, which can reduce the cost, reduce the fixing error, improve the clamping efficiency and positioning accuracy, and form clamping balance through bidirectional linkage.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of machinery, and relates to a full-automatic feeding and positioning production line, in particular to a feeding and distance-adjusting positioning system and an operation method. BACKGROUND

[0002] With the progress of society and the development of technology, intelligent electronic products have become an essential tool in human society. The requirements for modern full-automatic production of intelligent electronic products are becoming higher and higher, so as to meet the market consumer demand. Small electronic products need to be packaged and laminated, so as to complete the finished products. Before the mechanized assembly line packaging of small electronic products, batch products need to be accurately adjusted and positioned, so as to ensure the accuracy and effectiveness of the loading, so as to prevent a large number of empty box packaging.

[0003] For example, a kind of iron core assembling equipment is disclosed in Chinese patent document

Chinese patent number: 201910054992.9

[0004] The above technical scheme uses two clamping cylinders to drive two clamping devices to clamp and fix the product in different directions. The two clamping methods are independent of each other, and the actions of the two clamping methods have slight differences in clamping starting time and clamping force, which leads to lack of balance in clamping the product, and is prone to clamping positioning error, and is also prone to product surface damage due to different clamping forces. Therefore, the above technical scheme still needs to be further improved. SUMMARY

[0005] The present application aims to solve the above problems of the existing technology, and provides a feeding and distance-adjusting positioning system and an operation method, which adjusts the distance and accurately positions the product to ensure the accuracy of product loading, and improves the clamping effect by using linkage clamping.

[0006] The purpose of the present application can be achieved by the following technical solutions: a feeding variable-distance positioning system sequentially comprises a feeding bin, a plate moving device, a variable-distance material moving device and a secondary positioning device; the feeding bin is connected with the plate moving device in a straight line, the variable-distance material moving device is arranged above the plate moving device and connected with the secondary positioning device, the secondary positioning device comprises a material carrying frame with an embedding plate, a plurality of cavities are arranged in the embedding plate, a plurality of clamping notches are opened on the same side of the cavities, a transmission plate is slidably connected to the top surface of the material carrying frame, the transmission plate is driven and connected by a clamping cylinder, the transmission plate is connected with an X clamping rod through an X direction driving structure, the chuck of the X clamping rod extends into the cavity through the clamping notch, and the X clamping rod is connected with a Y clamping block through a Y direction driving structure, and the clamping piece of the Y clamping block extends into the cavity from the bottom side.

[0007] In the above-mentioned feeding variable-distance positioning system, the X direction driving structure comprises a plurality of inclined grooves arranged on the transmission plate, a plurality of the inclined grooves are arranged one by one corresponding to a plurality of the cavities, a guide column is inserted into the inclined groove to form a sliding connection, the guide column is fixedly connected with the X clamping rod, and an X groove is recessed on the top surface of the material carrying frame, the X clamping rod is embedded in the X groove to form an X direction sliding guide connection.

[0008] In the above-mentioned feeding variable-distance positioning system, the X clamping rod comprises a transversely arranged L-shaped rod body, the L-shaped rod body is embedded in the X groove through a long rod body, and the L-shaped rod body is fixedly connected with the chuck through a short rod body.

[0009] In the above-mentioned feeding variable-distance positioning system, the Y direction driving structure comprises a curved groove arranged on the X clamping rod, a guide pin is inserted into the curved groove to form a sliding connection, the guide pin is fixedly connected with the Y clamping block, a Y groove is arranged on the embedding plate, and the Y clamping block is embedded in the Y groove to form a Y direction sliding guide connection.

[0010] In the above-mentioned feeding variable-distance positioning system, a locking cylinder is arranged on the material carrying frame, the locking cylinder drives a locking plate to ascend and descend, a plurality of locking rods are vertically arranged on the locking plate, a plurality of positioning holes one are arranged on the material carrying frame, a plurality of positioning notches are arranged on the X clamping rod, and a plurality of positioning holes two are arranged on the embedding plate; the locking rods are sequentially inserted into the positioning holes one, the positioning notches and the positioning holes two from bottom to top.

[0011] In the above feeding variable-distance positioning system, the feeding bin comprises a bin frame with a feeding cavity, a stacked tray frame is connected in the feeding cavity in a lifting sliding manner, the stacked tray frame is driven and connected by a lifter below, a plurality of tray plates are arranged in the stacked tray frame in a longitudinal direction, a disc inserting station is formed above the tray plates, an inlet and an outlet corresponding to each disc inserting station are formed, a limiting rod is slidingly inserted into a side wall of the stacked tray frame, a limiting cylinder is fixed on the bin frame, a telescopic shaft is driven and connected by the limiting cylinder, a connecting disc is protruded on an end of the telescopic shaft, a notch is concave on an outer end of the limiting rod, and the connecting disc is embedded into the notch to form a flat pull hanging connection.

[0012] In the above feeding variable-distance positioning system, the disc moving device comprises a support with a guide sliding channel, a reciprocating driving mechanism is arranged below the guide sliding channel, the reciprocating driving mechanism comprises a disc pulling motor drivingly connected with a transmission belt assembly, the transmission belt assembly synchronously drives a disc pulling frame, a fulcrum seat is arranged on the disc pulling frame, a lever is hingedly connected to the fulcrum seat, one end of the lever is swingingly driven by a vertical cylinder, and the other end of the lever is swingingly connected with a pulling hook.

[0013] In the above feeding variable-distance positioning system, the variable-distance material moving device comprises a truss, a horizontal moving motor is fixed on the truss, a lifting cylinder is fixed on a horizontal moving block of the horizontal moving motor, a material taking frame is fixed on a telescopic end of the lifting cylinder, a plurality of material suction nozzles are slidingly arranged on the material taking frame, and the plurality of material suction nozzles are drivingly connected with a variable-distance assembly.

[0014] In the above feeding variable-distance positioning system, the variable-distance assembly comprises a variable-distance cylinder fixed on the material taking frame, a sliding block is fixedly sleeved on an outer periphery of each material suction nozzle, a sliding groove is concave on the material taking frame, a plurality of sliding blocks are embedded into the sliding groove, a first sliding block is fixed in the sliding groove, and the remaining sliding blocks are guidingly connected with the sliding groove, a limiting groove is concave on a back side of the sliding block, buckles are connected between adjacent limiting grooves, a relative telescopic displacement amount is left between the buckles and the limiting grooves, and a push-pull rod of the variable-distance cylinder is fixedly connected with a last sliding block.

[0015] An operation method of a feeding variable-distance positioning system comprises the following steps:

[0016] 1) The lifter is started to drive the stacked tray frame and the tray to ascend, and the lifter is stopped when the inductor senses that the tray plate ascends to a position; at this time, the limiting rod extends into the inlet and outlet of the disc inserting station to block the tray in the disc inserting station, and the limiting cylinder pulls out the limiting rod to make the inlet and outlet of the corresponding disc inserting station unobstructed;

[0017] 2) The disc pulling motor is started to drive the disc pulling frame to move forward and connect the tray in the stacked tray frame through the transmission belt assembly, the vertical cylinder is started to drive the pulling hook to hook the bottom edge of the tray, the disc pulling motor is started to drive the disc pulling frame to pull the tray to move backward through the transmission belt assembly, the tray is pulled out of the stacked tray frame and slides onto the guide sliding channel.

[0018] 3) Start the horizontal movement motor to drive the several suction nozzles to move horizontally above the tray, start the lifting cylinder to drive the several suction nozzles to descend and suck the several materials, the lifting cylinder drives the several suction nozzles to ascend, and the horizontal movement motor is started to drive the several suction nozzles to move horizontally above the embedding plate;

[0019] The variable-distance cylinder is started to drive the last sliding block and the suction nozzle to move, when the relative expansion displacement between the last buckle and the limiting groove reaches the limit, the second-to-last sliding block and the suction nozzle are driven to move by the clamping of the buckle, and thus the whole several suction nozzles are expanded to the maximum interval one by one, the lifting cylinder is started to drive the several suction nozzles to descend, and the materials are put into the cavities of the embedding plate one by one.

[0020] 4) Start the clamping cylinder to push the transmission plate, drive the X clamping rod to slide along the X groove and clamp the X edge of the product in the cavity; simultaneously drive the Y clamping block to slide along the Y groove and clamp the Y edge of the product in the cavity;

[0021] When the X clamping rod moves to the position along the X direction, the positioning notch communicates with the first positioning hole and the second positioning hole; the locking cylinder is started to ascend the locking rod, and the locking rod is inserted into the first positioning hole, the positioning notch and the second positioning hole to form clamping positioning.

[0022] Compared with the prior art, the present feeding variable-distance positioning system and operation method has the following beneficial effects:

[0023] 1. Through the reasonable layout of the feeding bin, the tray moving device, the variable-distance material moving device and the secondary positioning device, the product supply line is positioned on the processing line, the production space is reasonably utilized, the occupied area is reduced, the product moving path is saved, the overall structure is compact, the integration degree is high, the production line is optimized, the efficiency is improved, and the yield is increased.

[0024] 2. Through the close cooperation of the stacking tray feeding and the tray moving, the accurate movement of the tray is ensured under the premise of saving space, the precise positioning of the materials in the tray is further ensured, the suction empty phenomenon caused by misplacement of the materials is avoided, the problem of empty packaging caused by the suction empty phenomenon is finally avoided, and the effectiveness of the packaging is effectively ensured.

[0025] 3. Through the cooperation of the variable-distance suction and the secondary positioning, the precision after the variable-distance is ensured while adjusting the different intervals. The secondary positioning adopts one driver to drive two directions synchronously, which can reduce the number of drivers, reduce the cost, reduce the fixing error through synchronous clamping, improve the clamping efficiency, and form clamping balance in bidirectional linkage, avoid product damage caused by single clamping too tight, or positioning error caused by single clamping too loose, and further improve the positioning accuracy through bidirectional linkage clamping. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1is the overall overhead view of the feeding variable-distance positioning system.

[0027] Figure 2 is the overall overhead view of the feeding variable-distance positioning system.

[0028] Figure 3 is the three-dimensional structure of the tray moving device and the variable-distance material moving device in the feeding variable-distance positioning system Figure 1 .

[0029] Figure 4 is the three-dimensional structure of the tray moving device and the variable-distance material moving device in the feeding variable-distance positioning system Figure 2 .

[0030] Figure 5 is the internal variable-distance structure of the feeding variable-distance positioning system.

[0031] Figure 6 is the three-dimensional structure of the secondary positioning device in the feeding variable-distance positioning system.

[0032] Figure 7 is the overhead view of the secondary positioning device in the feeding variable-distance positioning system.

[0033] In the figure, 1, bin frame; 2, lifter; 3, stacked tray frame; 4, tray plate; 5, limiting rod; 6, limiting cylinder; 7, connecting disc; 8, guide slide; 9, pull tray motor; 10, driving wheel; 11, driven wheel; 12, belt; 13, connecting block; 14, pull tray frame; 15, lever; 16, vertical cylinder; 17, pull hook; 18, photoelectric switch; 19, horizontal moving motor; 20, lifting cylinder; 21, material taking frame; 22, material suction nozzle; 23, sliding block; 24, buckle; 25, variable-distance cylinder; 26, material carrying frame; 27, material embedding plate; 27a, cavity; 28, transmission plate; 28a, inclined groove; 29, clamping cylinder; 30, X clamping rod; 30a, curved groove; 31, Y clamping block; 32, locking cylinder; 33, locking plate; 34, locking rod. DETAILED DESCRIPTION

[0034] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0035] As Figure 1 shown, the feeding variable-distance positioning system sequentially includes a feeding bin, a tray moving device, a variable-distance material moving device, and a secondary positioning device; the feeding bin and the tray moving device are linearly connected, the variable-distance material moving device is arranged above the tray moving device and connected to the secondary positioning device.

[0036] As Figure 2As shown in the drawings, the feeding bin includes a bin frame 1 with a feeding cavity, a stacked tray frame 3 is connected to the feeding cavity in a lifting sliding manner, the stacked tray frame 3 is driven and connected by a lifter 2 below, a plurality of tray plates 4 are arranged in the stacked tray frame 3 in a longitudinal direction, a disc inserting station is formed above the tray plates 4, an inlet and an outlet corresponding to each disc inserting station, a limiting rod 5 is slidingly inserted into the side wall of the stacked tray frame 3, a limiting cylinder 6 is fixed on the bin frame 1, the limiting cylinder 6 is drivingly connected to a telescopic shaft, a connecting disc 7 is protruded on the shaft end of the telescopic shaft, a notch is concavely formed on the outer end of the limiting rod 5, and the connecting disc 7 is embedded into the notch to form a horizontal pull hanging connection.

[0037] The stacked tray frame 3 and the bin frame 1 are vertically and slidingly connected through vertical rails and vertical blocks. A plurality of sensors are fixed on the frame of the bin frame 1 at the feeding cavity, and are used for sensing the lifting position of the stacked tray frame 3. The stacked tray frame 3 is lifted in the feeding cavity through the lifter 2, and any tray plate 4 is sensed to be lifted to a precise position through the sensors. The limiting rod 5 is inserted into the inlet and outlet of the disc inserting station, and forms a blocking effect on the disc in the disc inserting station. The notches of the plurality of limiting rods 5 are vertically communicated, and the connecting disc 7 is moved up and down relative to the plurality of notches in the process of lifting the stacked tray frame 3. When any tray plate 4 reaches a precise position of disc ejection, the connecting disc 7 is embedded into the notch of the corresponding limiting rod 5 to form a horizontal clamping. The limiting cylinder 6 retracts the telescopic shaft to synchronously pull out the limiting rod 5, and the inlet and outlet of the corresponding disc inserting station are unblocked, so that the disc ejection operation is realized. After the disc is pulled out, the limiting cylinder 6 drives the limiting rod 5 to reset.

[0038] As shown in the drawings, Figure 3 and Figure 4 The disc moving device includes a support with a guide sliding way 8, a reciprocating driving mechanism is arranged below the guide sliding way 8, the reciprocating driving mechanism includes a disc pulling motor 9 drivingly connected to a transmission belt assembly, the transmission belt assembly synchronously drives a disc pulling frame 14, a fulcrum seat is arranged on the disc pulling frame 14, a lever 15 is hinged to the fulcrum seat, one end of the lever 15 is swingingly driven by a vertical cylinder 16, and the other end of the lever 15 is swingingly connected to a pulling hook 17.

[0039] The transmission belt assembly includes a driving wheel 10 fixedly sleeved to the rotating shaft of the disc pulling motor 9, and a driven wheel 11 hinged to the support, the driving wheel 10 and the driven wheel 11 are externally peripherally tensioned with a belt 12, and the belt 12 is fixedly connected to the disc pulling frame 14 through a connecting block 13. The rotating shaft of the disc pulling motor 9 is started to drive the driving wheel 10 to reverse, the belt 12 and the driven wheel 11 are synchronously operated through friction transmission, and the disc pulling frame 14 is driven to reciprocate by the connecting block 13. The disc pulling frame 14 is moved forward to approach the disc in the stacked tray frame 3, the vertical cylinder 16 swings one end of the lever 15 downward, and the pulling hook 17 at the other end of the lever 15 is hooked to the bottom edge of the disc. The disc pulling motor 9 is started to drive the belt 12 to move the disc pulling frame 14 backward, the hooked disc is pulled out of the stacked tray frame 3 and slides to the guide sliding way 8.

[0040] Photoelectric switch 18 is arranged above the front end of guide slide 8, and whether the tray is pulled out and whether the tray is accurately positioned are sensed by photoelectric switch 18.

[0041] The variable-distance material moving device comprises a truss, a horizontal moving motor 19 is fixed on the truss, a lifting cylinder 20 is fixedly connected to the horizontal moving block of horizontal moving motor 19, a material taking frame 21 is fixedly connected to the telescopic end of lifting cylinder 20, a plurality of material suction nozzles 22 are arranged in sliding mode on material taking frame 21, and the plurality of material suction nozzles 22 are driven and connected by a variable-distance assembly. The plurality of material suction nozzles 22 are driven by horizontal moving motor 19 to reciprocatingly translate between the tray moving device and the secondary positioning device; the plurality of material suction nozzles 22 are driven by lifting cylinder 20 to move up and down, so as to realize the material taking and placing action.

[0042] As shown in Figure 4 and Figure 5 , the variable-distance assembly comprises a variable-distance cylinder 25 fixed on material taking frame 21, a sliding block 23 is fixedly sleeved on the outer periphery of each material suction nozzle 22, a sliding groove is concavely arranged on material taking frame 21, the plurality of sliding blocks 23 are embedded in the sliding groove, the first sliding block 23 is fixed in the sliding groove, the remaining sliding blocks 23 are in guide sliding connection with the sliding groove, a limiting groove is concavely arranged on the back side of sliding block 23, a buckle 24 is connected between adjacent limiting grooves, a relative telescopic displacement amount is reserved between buckle 24 and the limiting groove, and the push-pull rod of variable-distance cylinder 25 is fixedly connected to the last sliding block 23.

[0043] The push-pull rod of variable-distance cylinder 25 is retracted, the last sliding block 23 and the material suction nozzle 22 are synchronously pulled to move, at this time, the remaining sliding blocks 23 do not move, when the relative telescopic displacement amount between the last buckle 24 and the limiting groove reaches the limit, the second-to-last sliding block 23 and the material suction nozzle 22 are driven to move by the clamping of buckle 24, and thus the driving is sequentially transmitted until the plurality of material suction nozzles 22 are unfolded to the maximum interval, so that the operation of changing the interval is realized. The push-pull rod of variable-distance cylinder 25 is extended, the last sliding block 23 and the material suction nozzle 22 are synchronously pushed to move, the clamping state of buckle 24 and the limiting groove is released, and the plurality of sliding blocks 23 are sequentially arranged in close contact, so that the plurality of material suction nozzles 22 are converged to the minimum interval, and the operation of changing the interval is realized.

[0044] As shown in Figure 6 and Figure 7 , the secondary positioning device comprises a material carrying frame 26 with an embedding plate 27, a plurality of cavities 27a are arranged in the embedding plate 27, the plurality of cavities 27a are open to clamping notches on the same side, a transmission plate 28 is slidably connected to the top surface of material carrying frame 26, a guide sliding groove is concavely arranged on the top surface of material carrying frame 26, the transmission plate 28 is embedded in the guide sliding groove to form reciprocating sliding connection, the transmission plate 28 is driven and connected by a clamping cylinder 29, the transmission plate 28 is arranged in parallel with the embedding plate 27, and the clamping cylinder 29 is fixedly connected to the side of material carrying frame 26.

[0045] The X-direction driving structure comprises a plurality of inclined grooves 28a arranged on the transmission plate 28, and the inclined grooves 28a are arranged one by one corresponding to the cavities 27a. The guiding columns are inserted into the inclined grooves 28a to form a sliding connection. The guiding columns are fixedly connected with the X clamping rods 30. The top surface of the material loading frame 26 is concavely provided with an X groove. The X clamping rods 30 are embedded into the X groove to form an X-direction guiding and sliding connection.

[0046] The X clamping rods 30 comprise horizontally arranged L-shaped rod bodies. The L-shaped rod bodies are embedded into the X groove through long rod bodies. The L-shaped rod bodies are bent back through short rod bodies to be fixedly connected with the clamping heads.

[0047] The Y-direction driving structure comprises a curve groove 30a arranged on the X clamping rod 30. The guiding pins are inserted into the curve groove 30a to form a sliding connection. The guiding pins are fixedly connected with the Y clamping blocks 31. The embedding plate 27 is provided with a Y groove. The Y clamping blocks 31 are embedded into the Y groove to form a Y-direction guiding and sliding connection.

[0048] The transmission plate 28 is connected with the X clamping rods 30 through the X-direction driving structure. The clamping heads of the X clamping rods 30 are inserted into the cavities 27a through the clamping gaps. The X clamping rods 30 are connected with the Y clamping blocks 31 through the Y-direction driving structure. The clamping pieces of the Y clamping blocks 31 are inserted into the cavities 27a through the bottom sides.

[0049] The clamping cylinder 29 is started to push the transmission plate 28. Due to the constraint of the X groove on the X clamping rods 30 in the Y direction, the guiding columns are driven to slide along the inclined grooves 28a. The X clamping rods 30 slide along the X groove and clamp the X edges of the products in the cavities 27a. The X clamping rods 30 slide along the X groove. Due to the constraint of the Y groove on the Y clamping blocks 31 in the X direction, the guiding pins are driven to slide along the curve groove 30a. The Y clamping blocks 31 slide along the Y groove and clamp the Y edges of the products in the cavities 27a.

[0050] The locking cylinder 32 is arranged on the material loading frame 26. The locking cylinder 32 drives the locking plate 33 to ascend and descend. A plurality of locking rods 34 are vertically arranged on the locking plate 33. A plurality of positioning holes one are correspondingly arranged on the material loading frame 26. A plurality of positioning notches are correspondingly arranged on the X clamping rods 30. A plurality of positioning holes two are correspondingly arranged on the embedding plate 27. The locking rods 34 are sequentially inserted into the positioning holes one, the positioning notches and the positioning holes two from bottom to top.

[0051] The products are synchronously clamped in the X direction and the Y direction by using the bidirectional constraint of the guiding tracks. When the X clamping rods 30 are moved to the position in the X direction, the positioning notches are communicated with the positioning holes one and the positioning holes two. The locking cylinder 32 is started to ascend the locking rods 34. The locking rods 34 are inserted into the positioning holes one, the positioning notches and the positioning holes two to form clamping positioning. The clamping position of the products is avoided. The products are prevented from being damaged due to excessive clamping and loosened due to insufficient clamping force.

[0052] Embodiment two

[0053] Based on the embodiment one, the difference of the embodiment two is that:

[0054] An operation method of a feeding variable-distance positioning system, comprising the following steps:

[0055] 1) Start the lifter 2 to drive the stacked tray rack 3 and the tray to rise, and stop the lifter 2 when the inductor senses that the tray plate 4 rises to the position; at this time, the limiting rod 5 extends into the inlet and outlet of the disc inserting station, and blocks the tray in the disc inserting station, and the limiting cylinder 6 pulls out the limiting rod 5 to make the inlet and outlet of the corresponding disc inserting station unblocked;

[0056] 2) Start the tray pulling motor 9 to drive the tray pulling rack 14 to move forward and connect the tray in the stacked tray rack 3 through the transmission belt assembly, start the vertical cylinder 16 to drive the pulling hook 17 to hook the bottom edge of the tray, start the tray pulling motor 9 to drive the tray pulling rack 14 to pull the tray to move backward through the transmission belt assembly, pull the tray out of the stacked tray rack 3 and slide to the guide slide 8;

[0057] 3) Start the horizontal moving motor 19 to drive a plurality of suction nozzles 22 to horizontally move above the tray, start the lifting cylinder 20 to drive a plurality of suction nozzles 22 to descend and suck a plurality of materials, the lifting cylinder 20 drives a plurality of suction nozzles 22 to rise, and the horizontal moving motor 19 drives a plurality of suction nozzles 22 to horizontally move above the embedding plate 27;

[0058] Start the variable-distance cylinder 25 to pull the last sliding block 23 and the suction nozzle 22 to move, when the relative extension displacement between the last buckle 24 and the limiting groove reaches the limit, the next-to-last sliding block 23 and the suction nozzle 22 are driven to move by the clamping of the buckle 24, thereby sequentially driving until the plurality of suction nozzles 22 are expanded to the maximum interval, and the lifting cylinder 20 drives the plurality of suction nozzles 22 to descend and put the materials into the hole cavities 27a of the embedding plate 27 one by one;

[0059] 4) Start the clamping cylinder 29 to push the transmission plate 28, drive the X clamping rod 30 to slide along the X groove and clamp the X edge of the product in the hole cavity 27a; simultaneously drive the Y clamping block 31 to slide along the Y groove and clamp the Y edge of the product in the hole cavity 27a;

[0060] When the X clamping rod 30 moves to the position along the X direction to make the positioning recess and the positioning hole one and the positioning hole two communicate; start the locking cylinder 32 to rise the locking rod 34, make the locking rod 34 pass through the positioning hole one, the positioning recess and the positioning hole two to form clamping positioning.

[0061] Compared with the prior art, the feeding variable-distance positioning system and the operation method have the following beneficial effects:

[0062] 1) Through the reasonable layout of the feeding bin, the tray moving device, the variable-distance material moving device and the secondary positioning device, the product supply line positioning processing line is realized, the production space is reasonably utilized, the occupied area is reduced, the product moving path is saved, the overall structure is compact, the integration degree is high, the production line is optimized, the efficiency is improved, and the yield is increased.

[0063] 2. By closely coordinating stacked tray feeding and pull tray transfer, the accurate movement of the trays is ensured while saving space, further guaranteeing the precise placement of materials in the trays. This avoids the phenomenon of suction-out caused by misplaced material, which ultimately leads to empty packaging boxes, effectively ensuring the effectiveness of packaging.

[0064] 3. By combining variable-pitch suction with secondary positioning, the system can handle different pitch adjustments while ensuring accuracy after the pitch change. Secondary positioning uses a single driver to simultaneously clamp in two directions. This reduces the number of drivers required, lowering costs, and minimizes fixing errors through synchronous clamping, improving clamping efficiency. Furthermore, the bidirectional linkage creates clamping balance, preventing product damage from excessively tight clamping teeth or positioning errors from excessively loose clamping teeth. The bidirectional linkage further enhances positioning accuracy.

[0065] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0066] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A loading variable-distance positioning system, sequentially comprising a loading bin, a plate moving device, a variable-distance material moving device, and a secondary positioning device; characterized in that, The feeding bin is connected with the plate moving device in a straight line, the distance changing material moving device is arranged above the plate moving device and connected with the secondary positioning device, the secondary positioning device comprises a material carrying frame (26) with a material embedding plate (27), a plurality of cavities (27a) are arranged in the material embedding plate (27), a plurality of the cavities (27a) are connected with clamping notches on the same side, a transmission plate (28) is slidably connected to the top surface of the material carrying frame (26), the transmission plate (28) is driven and connected by a clamping cylinder (29), the transmission plate (28) is connected with an X clamping rod (30) through an X direction driving structure, the clamping head of the X clamping rod (30) is inserted into the cavity (27a) through the clamping notch, the X clamping rod (30) is connected with a Y clamping block (31) through a Y direction driving structure, the clamping piece of the Y clamping block (31) is inserted into the cavity (27a) from the bottom side; The X direction driving structure comprises a plurality of inclined grooves (28a) arranged on the transmission plate (28), a plurality of the inclined grooves (28a) are arranged in one-to-one correspondence with a plurality of the cavities (27a), the inclined grooves (28a) are slidably connected by inserting guide columns, the guide columns are fixedly connected with the X clamping rod (30), an X groove is recessed in the top surface of the material carrying frame (26), the X clamping rod (30) is embedded in the X groove to form X direction sliding connection; The Y direction driving structure comprises a curved groove (30a) arranged on the X clamping rod (30), the curved groove (30a) is slidably connected by inserting a guide pin, the guide pin is fixedly connected with the Y clamping block (31), a Y groove is arranged on the material embedding plate (27), the Y clamping block (31) is embedded in the Y groove to form Y direction sliding connection; the X clamping rod (30) comprises a horizontally arranged L-shaped rod body, the L-shaped rod body is embedded in the X groove through a long rod body, and the L-shaped rod body is fixedly connected with the clamping head through a short rod body; a locking cylinder (32) is arranged on the material carrying frame (26), the locking cylinder (32) drives a locking plate (33) to ascend and descend, a plurality of locking rods (34) are vertically arranged on the locking plate (33), a plurality of positioning holes one are arranged on the material carrying frame (26), a plurality of positioning notches are arranged on the X clamping rod (30), and a plurality of positioning holes two are arranged on the material embedding plate (27). The locking rods (34) are sequentially inserted into the positioning holes one, the positioning notches and the positioning holes two from bottom to top.

2. The loading variable-stroke positioning system of claim 1, wherein The upper feeding bin comprises a bin frame (1) with an upper feeding cavity, a stacked tray frame (3) in sliding connection is arranged in the upper feeding cavity, the stacked tray frame (3) is driven and connected by a lifter (2) below, a plurality of tray plates (4) are arranged in the stacked tray frame (3) in the longitudinal direction, a tray inserting station is formed above the tray plates (4), an inlet and an outlet corresponding to each tray inserting station are formed, a limiting rod (5) is slidably inserted into the side wall of the stacked tray frame (3), a limiting cylinder (6) is fixed on the bin frame (1), a telescopic shaft is driven and connected by the limiting cylinder (6), a connecting disc (7) is protruded on the shaft end of the telescopic shaft, a notch is recessed on the outer end of the limiting rod (5), the connecting disc (7) is embedded into the notch to form a flat pull hanging connection.

3. The loading variable-stroke positioning system of claim 1, wherein, The tray moving device comprises a support with a guide slide (8), a reciprocating driving mechanism is arranged below the guide slide (8), the reciprocating driving mechanism comprises a pull tray motor (9) drivingly connected with a transmission belt assembly, the transmission belt assembly synchronously drives a pull tray frame (14), a fulcrum seat is arranged on the pull tray frame (14), a lever (15) is hingedly connected to the fulcrum seat, one end of the lever (15) is swingingly driven by a vertical cylinder (16), the other end of the lever (15) is swingingly connected with a pull hook (17).

4. The loading variable-stroke positioning system of claim 1, wherein, The variable-distance material moving device comprises a truss, a horizontal moving motor (19) is fixed on the truss, a lifting cylinder (20) is fixed on the horizontal moving block of the horizontal moving motor (19), a material taking frame (21) is fixed on the telescopic end of the lifting cylinder (20), a plurality of material suction nozzles (22) are slidably arranged on the material taking frame (21), and the plurality of material suction nozzles (22) are drivingly connected with a variable-distance assembly.

5. The loading variable-stroke positioning system of claim 4, wherein, The variable-distance assembly comprises a variable-distance cylinder (25) fixed on the material taking frame (21), a sliding block (23) is fixedly sleeved on the outer periphery of each material suction nozzle (22), a sliding groove is recessed on the material taking frame (21), the plurality of sliding blocks (23) are embedded into the sliding groove, the first sliding block (23) is fixed in the sliding groove, and the remaining sliding blocks (23) are guidingly connected with the sliding groove, a limiting groove is recessed on the back side of the sliding block (23), a buckle (24) is connected between adjacent limiting grooves, a relative telescopic displacement amount is reserved between the buckle (24) and the limiting groove, and a push-pull rod of the variable-distance cylinder (25) is fixedly connected with the last sliding block (23).

6. A method for operating a variable-stroke positioning system for loading, characterized in that, The method comprises the following steps: 1) starting the lifter (2) to drive the stacked tray frame (3) and the tray to ascend, and stopping the lifter (2) when the inductor senses that the tray plate (4) has ascended to the position; at this time, the limiting rod (5) is inserted into the inlet and outlet of the tray inserting station to block the tray in the tray inserting station, and the limiting cylinder (6) pulls out the limiting rod (5) to make the inlet and outlet of the corresponding tray inserting station unobstructed; 2) starting the pull tray motor (9) to drive the tray through the transmission belt assembly, driving the pull tray frame (14) to move forward and connect the tray in the stacked tray frame (3), starting the vertical cylinder (16) to drive the pull hook (17) to hook the bottom edge of the tray, and starting the pull tray motor (9) to drive the pull tray frame (14) to pull the tray to move backward, pulling the tray out of the stacked tray frame (3) and sliding the tray to the guide slide (8); 3), start the horizontal moving motor (19) drive several suction nozzle (22) horizontal moving to the material disc, start the lifting cylinder (20) drive several suction nozzle (22) down and take several materials, lifting cylinder (20) drive several suction nozzle (22) up, start the horizontal moving motor (19) drive several suction nozzle (22) horizontal moving to the material embedding plate (27) above; Start the variable distance cylinder (25) to pull the last slider (23) and suction nozzle (22) to move, when the relative expansion displacement between the last buckle (24) and the limiting slot reaches the limit, drive the second last slider (23) and suction nozzle (22) to move through the clamping of the buckle (24), thus drive one by one until the whole several suction nozzles (22) are expanded to the maximum interval, start the lifting cylinder (20) to drive several suction nozzles (22) to descend, and put the materials into the hole cavity (27a) of the material embedding plate (27) one by one; 4), start the clamping cylinder (29) to push the transmission plate (28), drive the X clamping rod (30) to slide along the X slot and clamp the X edge of the product in the hole cavity (27a); simultaneously drive the Y clamping block (31) to slide along the Y slot and clamp the Y edge of the product in the hole cavity (27a); When the X clamping rod (30) moves to the position along the X direction, the positioning notch communicates with the first positioning hole and the second positioning hole; start the locking cylinder (32) to rise the locking rod (34), so that the locking rod (34) penetrates the first positioning hole, the positioning notch and the second positioning hole to form clamping positioning.

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