Insert feeding and positioning mechanism

Abstract

The invention discloses an insert feeding and positioning mechanism which comprises a rack, two metal piece vibration discs, two plastic piece vibration discs and a positioning tool are installed on the rack, and the metal piece vibration discs and the plastic piece vibration discs are connected with the positioning tool through a first rail and a second rail correspondingly. The lower ends of the first rails and the lower ends of the second rails are installed on the linear feeding vibrator, the first rails are lower than the second rails, the two first rails are located in the middle, and the two second rails are symmetrically arranged on the two sides of the two first rails. The problem that the inserts are clamped is solved, and meanwhile conveying interference of the multiple inserts is avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, particularly to the injection molding of inserts for charging ports of new energy vehicles, and specifically to an insert feeding and positioning mechanism. Background Technology

[0002] Insert molding is an injection molding technology that involves placing prefabricated inserts (such as metal, plastic, or glass) into a mold and injecting resin to create a single, integrated product from dissimilar materials. It is widely used in the electrical, automotive, medical, and consumer electronics industries. This process combines the plasticity of resin with the rigidity of inserts to achieve a combination of insulation and conductivity, meeting the requirements of complex structures. Therefore, inserts include both metal and plastic inserts. When injection molding requires multiple feeds, including both metal and plastic inserts, the feeder and vibratory feeder must be separated to avoid mixing metal and plastic inserts on a single vibratory feeder and conveying them via a single feeder, which could easily lead to confusion. Therefore, multiple feeders are currently used. Current insert conveying methods have the following problems:

[0003] 1. Inserts are prone to getting stuck in the track;

[0004] 2. Multiple sets of tracks need to be arranged in a small space to transport multiple inserts. A robot is used to pick up the inserts at the end of the transport. However, due to the small space, interference is likely to occur at the end when transporting multiple inserts. Summary of the Invention

[0005] This invention provides an insert feeding and positioning mechanism that solves the problem of insert jamming and avoids interference in the conveying of multiple inserts.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The insert feeding and positioning mechanism includes a frame on which a metal vibratory feeder, a plastic vibratory feeder, and a positioning fixture are mounted. There are two metal vibratory feeders and two plastic vibratory feeders. The metal vibratory feeders and the plastic vibratory feeders are connected to the positioning fixture via rail one and rail two, respectively. The lower ends of rail one and rail two are mounted on a linear feeding vibrator. Rail one is lower than rail two. The two rails one are located in the middle, and the two rails two are symmetrically arranged on both sides of the two rails one.

[0008] Preferably, the positioning fixture includes a positioning plate, the lower end of which is mounted on two positioning plate mounting plates, the lower end of which is mounted on a positioning mounting base plate, the lower end of which is mounted on a mounting base plate support plate, and the lower end of the mounting base plate support plate is mounted on a frame. The positioning plate is provided with an insert entry groove corresponding to the end of the track, and each insert entry groove is provided with an insert lifting rod through hole. The insert lifting rod passes through the insert lifting rod through hole, and the bottom of the insert lifting rod is connected to the output end of a cylinder. The cylinder is mounted on the positioning mounting base plate.

[0009] Preferably, the positioning plate has two lifting block through holes, each lifting block through hole has a lifting block, the bottom of the lifting block is connected to the output end of the cylinder, and the top of the lifting block has an insert placement groove corresponding to the second track.

[0010] Preferably, the bottom two sides of the lifting block are provided with limiting parts, and the upper end of the lifting block is provided with a lifting limiting block mounting groove, and a lifting limiting block is installed in the lifting limiting block mounting groove.

[0011] Preferably, the positioning plate is provided with two fiber optic sensors corresponding to the lifting block, and the end of the insert entering the slot is provided with a fiber optic sensor.

[0012] Preferably, the top of track one is provided with two insert moving slots, and the upper end of the two insert moving slots is equipped with a cover plate one. The width of the cover plate one is smaller than the width of track one, and the end of each insert moving slot is inserted into slot one for docking.

[0013] Preferably, the frame is equipped with two positioning plate mounting posts, the positioning plates are mounted on the positioning plate mounting posts, and the positioning plates are provided with positioning holes.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] To solve the problem of insert conveying jamming and improve conveying stability: Linear feeding vibrators are installed at the lower end of both track 1 and track 2. The continuous vibration provides stable power for insert conveying and prevents inserts from getting stuck in the track. At the same time, there are two moving slots at the top of track 1, and each moving slot is equipped with a cover plate. This not only restricts the conveying path of the insert and prevents it from jumping out of the track, but also prevents the inserts from squeezing each other through independent channels, further reducing the risk of jamming and ensuring the continuous and smooth conveying of metal and plastic inserts.

[0016] Optimize track layout to avoid interference in the transport of multiple inserts: Adopt a layout of "one central double track + two symmetrical double tracks on both sides", with track one lower than track two, to achieve layered transport of metal inserts and plastic inserts. In a limited space, multiple sets of tracks are rationally planned, which completely solves the problem of easy interference at the end of transport of multiple inserts in a small space, and provides sufficient operating space for subsequent robot grasping.

[0017] Precise positioning of inserts ensures reliable gripping: In the positioning fixture, metal inserts are lifted by an insert lifting rod with a permanent magnet. The magnetic attraction can hold the tail of the metal insert, and the chamfered protrusion in the middle of the lifting rod helps to limit the insertion and prevent it from flying out due to inertia during the lifting process. Plastic inserts are supported by a lifting block with an insert placement groove, and a vacuum adsorption channel can be added for further fixation to ensure the stability of the insert during the lifting process. At the same time, the lifting block is equipped with a limiting part and a lifting limit block to strictly control the lifting stroke, so that the insert finally stops at the preset gripping position, improving positioning accuracy.

[0018] Improve production efficiency: A single track can simultaneously transport two sets of inserts through a double insert moving slot. With the help of two metal part vibratory feeders and two plastic part vibratory feeders, four metal inserts and two plastic inserts can be fed synchronously at one time, which greatly improves the production efficiency of multi-insert molding process.

[0019] To assist the robot in precise grasping and reduce product errors: The positioning plate mounting column on the frame and the positioning hole on the positioning plate allow the positioning pin to be inserted into the positioning hole before the robot grasps to complete precise positioning. This ensures that the relative position of the robot gripper and the insert is consistent, reduces grasping deviation, avoids product forming defects caused by misalignment of the insert, and improves the final product qualification rate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram from another perspective of an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is a top view of an embodiment of the present invention.

[0024] Figure 5 yes Figure 4 Enlarged diagram of point B in the middle.

[0025] Figure 6 This is a schematic diagram of the combination of the end of track one and cover plate one in an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the end of track one in an embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram of the positioning plate in an embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram of the lifting metal insert at the lifting block in an embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] As shown in the figure, this invention discloses an insert feeding and positioning mechanism, including a frame 1. A metal vibratory feeder 2, a plastic vibratory feeder 3, and a positioning fixture 4 are mounted on the frame 1. Two metal vibratory feeders 2 and two plastic vibratory feeders 3 are provided. The metal vibratory feeders 2 and 3 are connected to the positioning fixture 4 via a first track 5 and a second track 6, respectively. The lower ends of the first track 5 and the second track 6 are mounted on a linear feeding vibrator 7. The first track 5 is lower than the second track 6, with the two first tracks 5 located in the middle, and the two second tracks 6 symmetrically arranged on both sides of the two first tracks 5. The metal insert is M, and the plastic insert is N.

[0031] During feeding, the metal insert M and the plastic insert N are vibrated and moved out from the metal vibrating plate 2 and the plastic vibrating plate 3, respectively, and conveyed to the positioning fixture 4 via track 5 and track 6. Moreover, track 5 is lower than track 6, so the metal insert M moves in one plane and the plastic insert N moves in another plane, realizing multi-level movement of the metal insert M and the plastic insert N, and solving the interference problem caused by the limited space.

[0032] In one embodiment of the present invention, the positioning fixture 4 includes a positioning plate 8. The lower end of the positioning plate 8 is mounted on two positioning plate mounting plates 9. The lower ends of the two positioning plate mounting plates 9 are mounted on a positioning mounting base plate 10. The lower end of the positioning mounting base plate 10 is mounted on a mounting base plate support plate 11. The lower end of the mounting base plate support plate 11 is mounted on a frame 1. The positioning plate 8 is provided with an insert entry groove 81 corresponding to the end of the track 5. Each insert entry groove 81 is provided with an insert lifting rod through hole 82. The insert lifting rod 12 passes through the insert lifting rod through hole 82. The bottom of the insert lifting rod 12 is connected to the output end of a cylinder 13. The cylinder 13 is mounted on the positioning mounting base plate 10.

[0033] A permanent magnet is installed on the inner top of the insert lifting rod 12. Magnetic-assisted positioning is used to attract the tail of the metal insert M, preventing it from flying off due to inertia during lifting. A chamfered protrusion in the middle of the lifting positioning post passes through the center of the metal insert M, limiting and supporting it. The metal insert M here is a screw. The permanent magnet design ensures accurate positioning and prevents the insert from falling off during movement.

[0034] In one embodiment of the present invention, the positioning plate 8 is provided with two lifting block through holes 83, and each lifting block through hole 83 is provided with a lifting block 14. The bottom of the lifting block 14 is connected to the output end of the cylinder 13, and the top of the lifting block 14 is provided with an insert placement groove 141 corresponding to the track 6.

[0035] To ensure stable adsorption of the insert, a vacuum adsorption channel can be provided at the lifting block 14. The vacuum adsorption channel is connected to the vacuum generator through a pipe. During the ascent, the vacuum adsorption channel adsorbs the insert, ensuring that the lifting block 14 can stably drive the insert to rise.

[0036] The plastic insert N moves to the lifting block 14, and then the cylinder 13 drives the lifting block 14 to rise, moving the plastic insert N to the gripping position.

[0037] In one embodiment of the present invention, the bottom sides of the lifting block 14 are provided with limiting parts 142, the upper end of the lifting block 14 is provided with a lifting limiting block mounting groove 143, and a lifting limiting block 15 is installed at the lifting limiting block mounting groove 143.

[0038] The function of the limiting part 142 is to limit the upward movement of the lifting block 14. The lifting limiting block 15 is used to limit the downward movement of the lifting limiting block 14.

[0039] In one embodiment of the present invention, the positioning plate 8 is provided with two fiber optic sensors 16 corresponding to the lifting block 14. When the fiber optic sensor 16 senses the insert, the cylinder drives the lifting block 14 to rise.

[0040] An optical fiber sensor 17 is provided at the end of the insert entering the slot 81. When the optical fiber sensor 17 senses the insert, the cylinder drives the insert lifting rod 12 to rise.

[0041] In one embodiment of the present invention, the top of the track 5 is provided with two insert moving slots 51, and the upper end of the two insert moving slots 51 is equipped with a cover plate 18. The width of the cover plate 18 is smaller than the width of the track 5, and the end of each insert moving slot 51 is inserted into slot 81 for docking.

[0042] Cover plate 18 prevents the inserts from jumping out of the insert movement slot 51. Each insert moves in one insert movement slot 51, so one track 5 can feed two sets of inserts. Therefore, the present invention can feed four metal inserts M and two plastic inserts N at a time.

[0043] The lower part of the six positioning fixtures is designed with a lifting mechanism. By controlling the lifting stroke of the lifting mechanism, the inserts in the six insert positioning fixtures are lifted to the appropriate positions to match the gripper's grasping.

[0044] In one embodiment of the present invention, two positioning plate mounting posts 19 are installed on the frame 1, and positioning plates 20 are installed on the positioning plate mounting posts 19. Positioning plates 20 are provided with positioning holes 201.

[0045] When the robot needs to grasp, first insert the robot's positioning pin into the positioning hole 201 to ensure the robot's precise positioning, and then the robot's gripper will grasp the insert. By positioning the robot first, it is ensured that the gripper can accurately grasp the insert.

[0046] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An insert feeding and positioning mechanism, characterized in that: The device includes a frame on which metal vibratory feeders, plastic vibratory feeders, and positioning fixtures are mounted. There are two metal vibratory feeders and two plastic vibratory feeders. The metal vibratory feeders and plastic vibratory feeders are connected to the positioning fixtures via rail one and rail two, respectively. The lower ends of rail one and rail two are mounted on a linear feeding vibrator. Rail one is lower than rail two. The two rails one are located in the middle, and the two rails two are symmetrically arranged on both sides of the two rails one.

2. The insert feeding and positioning mechanism according to claim 1, characterized in that: The positioning fixture includes a positioning plate. The lower end of the positioning plate is mounted on two positioning plate mounting plates. The lower end of the two positioning plate mounting plates is mounted on a positioning mounting base plate. The lower end of the positioning mounting base plate is mounted on a mounting base plate support plate. The lower end of the mounting base plate support plate is mounted on a frame. The positioning plate is provided with an insert entry slot corresponding to the end of the track. Each insert entry slot is provided with an insert lifting rod through hole. The insert lifting rod passes through the insert lifting rod through hole. The bottom of the insert lifting rod is connected to the output end of a cylinder. The cylinder is mounted on the positioning mounting base plate.

3. The insert feeding and positioning mechanism according to claim 2, characterized in that: The positioning plate has two lifting block through holes, and each lifting block through hole has a lifting block. The bottom of the lifting block is connected to the output end of the cylinder, and the top of the lifting block has an insert placement groove corresponding to the second track.

4. The insert feeding and positioning mechanism according to claim 3, characterized in that: The bottom of the lifting block is provided with a limiting part on both sides, and the upper end of the lifting block is provided with a lifting limiting block mounting groove, and a lifting limiting block is installed in the lifting limiting block mounting groove.

5. The insert feeding and positioning mechanism according to claim 3, characterized in that: The positioning plate is equipped with two fiber optic sensors corresponding to the lifting block, and the end of the insert entering the slot is equipped with a fiber optic sensor.

6. The insert feeding and positioning mechanism according to claim 2, characterized in that: The top of track one is provided with two insert moving slots. The upper end of the two insert moving slots is covered with a cover plate one. The width of the cover plate one is smaller than the width of track one. The end of each insert moving slot is inserted into slot one for docking.

7. The insert feeding and positioning mechanism according to claim 1, characterized in that: The frame is equipped with two positioning plate mounting posts, and the positioning plates are mounted on the positioning plate mounting posts. The positioning plates are provided with positioning holes.

8. The insert feeding and positioning mechanism according to claim 2, characterized in that: A permanent magnet is provided on the inner side of the top of the insert lifting rod.

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