Gripper for injection mold

Abstract

The gripper for the injection mold comprises a first base plate, a suction mechanism and a clamping mechanism, the suction mechanism and the clamping mechanism are arranged on the first base plate in a spaced mode, and the suction mechanism is provided with an adsorption part capable of adsorbing and picking up a first material; the clamping mechanism is provided with an elastic clamping jaw capable of elastically clamping and picking up a second material, a positioning clamping jaw capable of clamping, positioning or loosening the second material arranged on the elastic clamping jaw and a stripping mechanism, and when the positioning clamping jaw is in a loosening state, the stripping mechanism can drive the elastic clamping jaw to perform downward pressing movement; and the second material is separated from the elastic clamping jaw and is pressed on other materials. The gripper is compact in structure and high in automation and integration degree, greatly improves the working efficiency and the feeding, discharging and press-fitting precision, reduces the production cost and improves the quality of finished products; and moreover, second materials such as metal terminals can be clamped without damage, the clamping stability is good, and production implementation is facilitated.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and more particularly to a gripper for injection molds. Background Technology

[0002] Currently, in the field of electrical connector technology, a combination of injection molding and press fitting is generally used to implant metal terminals into plastic parts. Specifically, the process involves: first, using an injection mold to make a plastic part; then, before the plastic part is fully cured, sending the metal terminal into the injection mold and pressing it into the plastic part to obtain the injection molded product; and finally, removing the injection molded product from the injection mold.

[0003] In the aforementioned operations of "feeding metal terminals into the injection mold," "pressing metal terminals into the plastic part," and "removing the injection-molded product from the injection mold," the following traditional operating modes are used: 1) Manually loading and pressing metal terminals and unloading injection-molded products. However, this manual operation method is not only labor-intensive and inefficient, but also poses certain safety hazards to operators due to the high temperature of the newly formed plastic part in the injection mold. 2) Using mechanical material handling and pressing mechanisms to complete the loading and pressing of metal terminals and unloading of injection-molded products. However, since existing material handling mechanisms generally only handle one type of product, multiple material handling mechanisms are required to complete the loading and unloading operations of metal terminals and injection-molded products, which not only increases production costs but also occupies more production space and is not conducive to equipment installation and layout. In addition, since metal terminals have irregular structures, they are not easy to clamp, resulting in poor operational stability of the material handling mechanism, which is not conducive to production processing.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] To overcome the above-mentioned defects, the present invention provides a gripper for injection molds, which has a compact structure and a high degree of automation and integration, which not only greatly improves the efficiency of operation, loading and unloading and pressing accuracy, reduces production costs, and improves the quality of finished products, but also facilitates the installation and daily maintenance of equipment; on the other hand, it can perform non-destructive and highly stable clamping operations on secondary materials such as metal terminals, which is beneficial to production implementation.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a gripper for injection molds, including a first substrate, and a suction mechanism and a clamping mechanism spaced apart on the first substrate. The suction mechanism is provided with an suction element capable of adsorbing and picking up a first material. The clamping mechanism is provided with an elastic gripper capable of elastically clamping and picking up a second material, a positioning gripper capable of clamping and positioning or releasing the second material placed on the elastic gripper, and a material release mechanism. When the positioning gripper is in the released state, the material release mechanism can drive the elastic gripper to perform a downward pressing movement to detach the second material from the elastic gripper and press it onto other materials.

[0007] As a further improvement of the present invention, the elastic gripper is provided with a base block fixedly connected to the power output end of the unloading mechanism, a plurality of pins disposed on the base block and extending out of the first side of the base block to be inserted and engaged with the assembly holes on the second material, two clamping plates respectively slidably connected to the second side of the base block through a first slider, and an elastic element connected between the two first sliders. Each of the two clamping plates is provided with a plurality of clamping fingers arranged side by side, and each pair of clamping fingers belonging to different clamping plates and adjacent to each other forms a clamping finger pair capable of elastically clamping the second material, and the plurality of clamping finger pairs are respectively engaged with the plurality of pins one by one; in addition, the first side of the base block is adjacent to its second side.

[0008] As a further improvement of the present invention, a first direction, a second direction, and a third direction are defined, wherein the first direction, the second direction, and the third direction are perpendicular to each other; a plurality of clamping fingers in each clamping plate extend along the length of the first direction and are arranged side by side along the second direction, and the two clamping plates are also arranged parallel along the third direction, and the plurality of clamping fingers in the two clamping plates are also staggered and partially overlapped in the second direction; correspondingly, the two clamping fingers in each clamping finger pair are arranged in a staggered manner.

[0009] As a further improvement of the present invention, a guide rail extending in the second direction is fixedly connected to the second side of the base block, and the two first sliders are spaced apart and slidably connected to the guide rail;

[0010] The two clamping plates are respectively fixedly connected to the two first sliders, and the multiple clamping fingers in the two clamping plates also extend beyond and are perpendicular to the plane of the first side of the base block;

[0011] The elastic element is a spring screw and is elastically and adjustablely connected between the two first sliders.

[0012] As a further improvement of the present invention, the plurality of pins also extend along the length of the first direction and are arranged side by side along the second direction, and the ends of the plurality of pins extending out of the first side of the base are flush with each other, or the ends of each two adjacent pins extending out of the first side of the base have the same height difference.

[0013] In addition, when there is the same height difference between the ends of each two adjacent pins extending out of the first side of the base block, an anti-tilting block is selectively fixed on the first side of the base block and next to the pins to prevent the second material from tilting.

[0014] As a further improvement of the present invention, the positioning grippers are configured in two and symmetrically arranged on opposite sides of the elastic grippers along the second direction;

[0015] The gripping mechanism also includes a gripper drive mechanism capable of driving the positioning grippers. The gripper drive mechanism includes a gripping cylinder, a drive plate, and two transmission components. The piston rod of the gripping cylinder can extend and retract along the first direction and is fixedly connected to the drive plate. The drive plate is provided with two guide holes that extend at intervals relative to the first direction and are arranged in a figure-eight shape. The two transmission components are arranged at intervals along the second direction and are slidably connected to the two guide holes respectively through cam driven bearings. One side of each of the two transmission components is also placed on opposite sides of the elastic grippers along the second direction to be fixedly connected to the two positioning grippers. That is, by driving the drive plate to reciprocate along the first direction through the gripping cylinder, the two positioning grippers can be driven to move closer or further apart in the second direction, thereby enabling the two positioning grippers to grip, position, or release the second material placed in the elastic grippers.

[0016] As a further improvement of the present invention, the clamping mechanism is further provided with a first mounting plate, a lifting cylinder, a bracket A and a bracket B. The first mounting plate is slidably connected to one side of the cylinder body of the lifting cylinder through the bracket A, and the other side of the cylinder body of the lifting cylinder is fixedly connected to one side of the first base plate through the bracket B. The piston rod of the lifting cylinder can extend and retract along the first direction and is fixedly connected to the first mounting plate. In addition, a slide rail extending along the second direction is fixedly laid on the first mounting plate, and mounting holes A and B are spaced apart along the third direction on the first mounting plate, and a sliding sleeve block is fixedly installed in both mounting holes A and mounting holes B.

[0017] The unloading mechanism includes an unloading cylinder, which is fixedly mounted on one side of the first mounting plate, and the piston rod of the unloading cylinder can also extend and retract along the first direction; the base block is inserted into the mounting hole A and slidably connected to the sliding block in the mounting hole A, and one side of the base block is connected to the piston rod of the unloading cylinder, while the other side extends out of the opposite side of the first mounting plate;

[0018] The clamping cylinder is also fixedly mounted on one side of the first mounting plate. The drive plate passes through the mounting hole B and is slidably connected to the sliding sleeve block in the mounting hole B. The drive plate is fixedly connected to the piston rod of the clamping cylinder on one side along the first direction. The other sides of the two transmission components are slidably connected to the slide rail through the second slider. The cam follower bearing is also installed on the other side of the two transmission components.

[0019] As a further improvement of the present invention, the suction mechanism is further provided with upper and lower cylinders, a connecting frame, and a second mounting plate. The cylinder body of the upper and lower cylinders is fixedly connected to one side of the first base plate through the connecting frame, and the piston rod of the upper and lower cylinders can extend and retract along the first direction. The second mounting plate is fixedly connected to the piston rod of the upper and lower cylinders, and the second mounting plate is also slidably connected to the cylinder body of the upper and lower cylinders.

[0020] The adsorption element is a vacuum nozzle and is configured in multiple ways, with the multiple adsorption elements spaced apart on the second mounting plate.

[0021] As a further improvement of the present invention, the suction mechanism and the clamping mechanism are spaced apart on one side of the first substrate along the third direction, and both the suction mechanism and the clamping mechanism are provided with a plurality of precision positioning pins extending along the first direction and used to cooperate with positioning holes A on the external feeding platform and / or the injection mold.

[0022] As a further improvement of the present invention, the gripper further includes a second base plate for connecting with an external robot arm, a guide rail A extending along the third direction and fixedly laid on one side of the second base plate, and a misalignment cylinder fixedly disposed on the second base plate. The first base plate is slidably connected to the guide rail A and fixedly connected to the piston rod of the misalignment cylinder. In addition, a plurality of coarse positioning pins are provided at intervals on the second base plate, extending along the first direction and used to cooperate with positioning holes B on an external feeding platform and / or injection mold.

[0023] The beneficial effects of this invention are as follows: ① Compared with the prior art, the gripper of this invention integrates multiple functions such as "automatic material picking," "automatic material clamping," and "automatic material pressing," meaning that one gripper can automate the loading, unloading, and pressing operations of various types of products, greatly improving work efficiency, reducing production costs, and ensuring high loading and unloading accuracy and high pressing accuracy, thereby significantly improving the quality of finished products. ② When picking up a second material such as a metal terminal, the gripper of this invention first uses the elastic gripper, which can adaptively adjust according to the shape of the second material, to elastically clamp the second material, ensuring accurate clamping and avoiding damage to the surface of the second material due to excessive clamping force; then, the positioning gripper is used to clamp and position the second material, ensuring stable clamping. In summary, the clamping mechanism of this invention can achieve non-damaging clamping operations with excellent clamping stability for second materials such as metal terminals, which is beneficial for production implementation. ③ The gripper of this invention has a reasonable and compact structure, does not occupy too much production space, and is very conducive to equipment installation, layout, and daily maintenance. ④ Based on the gripper described in this invention, operators only need to remotely monitor and handle occasional events without on-site operations, which greatly reduces the labor intensity and labor costs of operators and avoids the safety hazards of existing manual operations. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the gripper for injection molds according to the present invention from a first-view perspective;

[0025] Figure 2 This is a schematic diagram of the gripper for injection molds according to the present invention from a second perspective;

[0026] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the image;

[0027] Figure 4 This is a partial structural diagram of the gripper for injection molds described in this invention;

[0028] Figure 5 for Figure 4 The enlarged structural schematic of the suction mechanism shown;

[0029] Figure 6 for Figure 4 A schematic diagram of the enlarged structure of the gripping mechanism shown;

[0030] Figure 7 for Figure 4 The diagram shows a partial structure of the gripper from another perspective.

[0031] Figure 8 for Figure 6One of the partial structural schematic diagrams of the clamping mechanism shown;

[0032] Figure 9 for Figure 6 The second partial structural schematic diagram of the clamping mechanism shown;

[0033] Figure 10 for Figure 6 The third partial structural schematic diagram of the clamping mechanism shown;

[0034] Figure 11 for Figure 6 The fourth partial structural schematic diagram of the clamping mechanism shown;

[0035] Figure 12 This is a schematic diagram showing the state of the pin initially positioning the second material according to the present invention;

[0036] Figure 13 for Figure 12 The diagram shows the pin initially positioning the second material and its position from another perspective.

[0037] Figure 14 This is a schematic diagram showing the state of the clamping plate of the present invention when it elastically clamps the second material;

[0038] Figure 15 This is a schematic diagram of the layout of the clamping plate described in this invention.

[0039] Referring to the accompanying drawings, the following explanations are provided:

[0040] 1. First substrate; 2. Suction mechanism; 20. Adsorption component; 21. Upper and lower cylinders;

[0041] 22. Connecting frame; 23. Second mounting plate; 3. Clamping mechanism; 30. Elastic gripper; 300. Base block; 301. Pin; 302. First slider; 303. Clamping plate; 3030. Gripper finger; 3031. Gripper pair; 304. Elastic element; 3040. Screw; 3041. Spring; 305. Guide rail; 306. Anti-skewing block; 31. Positioning gripper; 32. Unloading cylinder; 330. Clamping cylinder; 331. Drive plate; 3310. Guide hole; 332. Transmission element; 333. Cam driven bearing; 34. First mounting plate; 340. Slide rail; 341. Sliding sleeve block; 35. Lifting cylinder; 36. Bracket A; 37. Bracket B; 4. Precision positioning pin; 5. Second base plate; 6. Guide rail A; 7. Misalignment cylinder; 8. Coarse positioning pin. Detailed Implementation

[0042] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Example 1:

[0044] Please see the appendix Figure 1 To be continued Figure 15 As shown, this embodiment 1 provides a gripper for injection molds, which includes a first substrate 1, and a suction mechanism 2 and a clamping mechanism 3 spaced apart on the first substrate 1. The suction mechanism 2 is provided with a suction member 20 capable of adsorbing and picking up a first material (such as a plastic part P). The clamping mechanism 3 is provided with an elastic gripper 30 capable of elastically clamping and picking up a second material (such as a metal terminal T), a positioning gripper 31 capable of clamping, positioning, or releasing the second material placed on the elastic gripper 30, and a material release mechanism. When the positioning gripper 31 is in the released state, the material release mechanism can drive the elastic gripper 30 to perform a downward pressing movement to remove the second material from the elastic gripper 30 and press it onto other materials (such as the plastic part P). Understandably, the gripper described in this embodiment integrates multiple functions such as "automatic material picking," "automatic material clamping," and "automatic material pressing." A single gripper can automate the loading, unloading, and pressing operations for various types of products, significantly improving operational efficiency, reducing production costs, and ensuring high precision in loading, unloading, and pressing, thereby greatly enhancing the quality of the finished product. Furthermore, when using the clamping mechanism 3 to pick up a second material such as a metal terminal, the elastic gripper, which can adaptively adjust according to the shape of the second material, first elastically clamps it, ensuring precise clamping and preventing damage to the surface of the second material due to excessive clamping force. Then, the positioning gripper clamps position the second material, ensuring stable clamping. In other words, the clamping mechanism 3 in the gripper of this embodiment can perform non-damaging clamping operations on second materials such as metal terminals with excellent clamping stability, which is highly beneficial for production implementation.

[0045] The specific structure of the gripper described in this embodiment will be described in detail below.

[0046] First, regarding the clamping mechanism 3.

[0047] In the gripping mechanism 3 structure described in this embodiment, the elastic gripper 30 preferably adopts the following implementation structure: Please refer to the appendix. Figure 6 Appendix Figure 8 To be continued Figure 15As shown, the elastic gripper 30 includes a base block 300 fixedly connected to the power output end of the unloading mechanism, a plurality of pins 301 disposed on the base block 300 and extending out of the first side of the base block 300 to be inserted into the mounting holes on the second material, two clamping plates 303 respectively slidably connected to the second side of the base block 300 (the second side of the base block 300 is adjacent to its first side) via first sliders 302, and an elastic element 304 connected between the two first sliders 302. Each of the two clamping plates 303 is provided with a plurality of clamping fingers 3030 arranged side by side, and every two clamping fingers 3030 belonging to different clamping plates 303 and adjacent to each other form a clamping finger pair 3031 that can elastically clamp the second material, and the plurality of clamping finger pairs 3031 are respectively corresponding to and engaged with the plurality of pins 301. Understandably, in the elastic gripper 30, the pin 301 is used to insert and position the first part of the second material (such as a metal terminal) (see Appendix). Figure 12 As shown), the multiple clamping fingers 3031 formed by the two clamping plates 303 together are used to adaptively and elastically clamp the second part of the second material (see Appendix). Figure 14 As shown); by combining the pin 301 with the clamping plate 303 (the clamping finger pair 3031), a precise, undamaged clamping operation with a certain clamping force can be achieved on the second material.

[0048] Furthermore, in this embodiment, the specific molding structure of the finger clamp pair 3031 is as follows: first, define a first direction, a second direction, and a third direction that are perpendicular to each other, such as: with attachment Figure 1 The gripper arrangement shown is a baseline. The first direction can be vertical, the second direction can be forward / backward, and the third direction can be left / right. Based on the above direction definitions, please refer to the appendix. Figure 14 and attached Figure 15 As shown, the plurality of clamping fingers 3030 in each clamping plate 303 extend along the length of the first direction and are arranged side by side along the second direction. It can be understood that the plurality of clamping fingers 3030 in each clamping plate 303 are vertical strips and arranged side by side along the front-back direction. Furthermore, the two clamping plates 303 are also arranged parallel to each other along the third direction, and the plurality of clamping fingers 3030 in the two clamping plates 303 are also staggered and partially overlapped in the second direction. It can be understood that the two clamping plates 303 are parallel in the left-right direction and staggered and partially overlapped in the front-back direction. The phrase "staggered and partially overlapped in the front-back direction" can be understood as: (The text abruptly ends here, likely due to an incomplete translation or source material.) Figure 15Taking the example of two clamping plates 303 each having four clamping fingers 3030, the last three clamping fingers 3030 in the left clamping plate 303 are arranged in a one-to-one overlapping configuration with the first three clamping fingers 3030 in the right clamping plate 303. The remaining two clamping fingers 3030 are arranged separately. The first clamping finger 3030 in the left clamping plate 303 is misaligned with the first clamping finger 3030 in the right clamping plate 303, forming the first clamping finger pair 3031, and so on. Similarly, the fourth clamping finger 3030 in the left clamping plate 303 is misaligned with the fourth clamping finger 3030 in the right clamping plate 303, forming the fourth clamping finger pair 3031. In short, the two clamping plates 303 in this embodiment form a total of four clamping finger pairs 3031. The two clamping fingers 3030 in each clamping finger pair 3031 belong to different clamping plates 303 and are arranged adjacent to each other but staggered.

[0049] Furthermore, in this embodiment, the specific assembly method between the base block 300, the clamping plate 303, and the elastic element 304 is as follows: Please refer to the appendix. Figure 9 To be continued Figure 11 As shown, in this embodiment, a guide rail 305 extending along the second direction is fixedly connected to the second side of the base block 300. Two first sliders 302 are spaced apart and slidably connected to the guide rail 305 (understandably, the two first sliders 302 are spaced apart along the second direction). Two clamping plates 303 are respectively fixedly connected to the two first sliders 302 (preferably integrally connected), and a plurality of clamping fingers 3030 in the two clamping plates 303 extend outward and are perpendicular to the plane of the first side of the base block 300. The elastic element 304 is a spring screw and is elastically adjustable between the two first sliders 302 to provide elastic force to the two first sliders 302 / two clamping plates 303 (specifically, the clamping finger pair 3031).

[0050] Note: ① Based on the above directional definition, the first side of the base block 300 can be its lower side, and the second side of the base block 300 can be its left or right side. ② The spring screw is a known component; see attached document. Figure 14 As shown, it typically includes a screw 3040 and a spring 3041 sleeved on the screw 3040. By tightening or loosening the screw 3040, the compression degree of the spring 3041 can be adjusted, thereby adjusting the elastic force between the two clamping plates 303 (specifically the clamping finger pair 3031).

[0051] Furthermore, in this embodiment, the specific assembly method between the pin 301 and the base block 300 is as follows: Please refer to the appendix. Figure 12 and attached Figure 13 As shown, in this embodiment, multiple pins 301 are partially embedded in the base block 300 using an injection molding process. One end of each pin 301 extends out of the first side of the base block 300 to engage with the mounting holes on the second material. Based on the above directional definition, it can be understood that the multiple pins 301 extend along the vertical direction (the first direction), and the lower ends of the multiple pins 301 extend out of the lower side of the base block 300.

[0052] Furthermore, based on the fact that the plurality of clamping fingers 3030 in the clamping plate 303 are arranged side by side along the second direction, the plurality of pins 301 are also arranged side by side along the second direction, so that the plurality of pins 301 can correspond one-to-one with the plurality of clamping fingers 3031. In addition, according to the arrangement of the metal terminal group, the structure / layout of the pins 301 is further limited in the following ways: ① When the metal terminal group is arranged in a row, the ends of the plurality of pins 301 extending out of the first side of the base block 300 are flush with each other, that is, the lower ends of the plurality of pins 301 are flush with each other; ② When the metal terminal group is arranged in two rows, there is the same height difference between the ends of each two adjacent pins 301 extending out of the first side of the base block 300, that is, the lower ends of the plurality of pins 301 are uneven and not flush. Furthermore, when there is the same height difference between the ends of each pair of adjacent pins 301 extending beyond the first side of the base block 300, an anti-tilting block 306 is selectively fixed on the first side of the base block 300 and next to the pins 301 to prevent the second material from tilting. (See attached drawing.) Figure 3 As shown. Understandably, when the lower ends of the multiple pins 301 are not aligned, the distance between the lower ends of the multiple pins 301 and the lower side of the base block 300 is not the same, varying in size. When the distance between the lower ends of the pins 301 and the lower side of the base block 300 is small, after the pins 301 are inserted into the assembly holes on the second material, the second material can be pressed against the lower side of the base block 300. However, when the distance between the lower ends of the pins 301 and the lower side of the base block 300 is large, after the pins 301 are inserted into the assembly holes on the second material, there is still a gap between the second material and the lower side of the base block 300, and the second material is at risk of tilting and swaying. In this case, by setting the anti-tilting block 306, the second material can be pressed against the anti-tilting block 306 to avoid tilting and instability.

[0053] In the gripping mechanism 3 structure described in this embodiment, the preferred implementation structure of the positioning gripper 31 is as follows: Please refer to the appendix. Figure 8 To be continued Figure 10 As shown, two positioning claws 31 are configured and are arranged in a mirror-symmetrical manner on opposite sides of the elastic claw 30 along the second direction. Furthermore, both positioning claws 31 have U-shaped fork structures at their opposite ends for clamping and positioning the second material.

[0054] Furthermore, the structure that enables the two positioning jaws 31 to clamp, position, or release the second material placed on the elastic jaws 30 is as follows: Please refer to the appendix. Figure 8 To be continued Figure 11 As shown, the clamping mechanism 3 also includes a clamping drive mechanism capable of driving the positioning clamping jaw 31. The clamping drive mechanism includes a clamping cylinder 330, a drive plate 331, and two transmission components 332. The piston rod of the clamping cylinder 330 can extend and retract along the first direction and is fixedly connected to the drive plate 331. The drive plate 331 has two guide holes 3310 that extend obliquely relative to the first direction at intervals, and the two guide holes 3310 are arranged in a figure-eight shape. The two transmission components 332 are spaced apart along the second direction and are respectively driven by cams. The bearing 333 is slidably connected to the two guide holes 3310, and one side of each of the two transmission components 332 is respectively placed on opposite sides of the elastic gripper 30 along the second direction to be fixedly connected to the two positioning grippers 31; that is, by driving the drive plate 331 to reciprocate along the first direction through the gripping cylinder 330, the two positioning grippers 31 can be driven to move closer or further apart in the second direction, thereby realizing that the U-shaped fork structure on the two positioning grippers 31 can clamp, position or release the second material placed in the elastic gripper 30. Specifically, based on the above directional definition, when the gripping cylinder 330 drives the drive plate 331 to move downward, it can drive the two positioning claws 31 to move closer together, so that the U-shaped fork structures on the two positioning claws 31 are both sleeved on the second material to clamp and position the second material; while when the gripping cylinder 330 drives the drive plate 331 to move upward, it can drive the two positioning claws 31 to move away from each other, so that the two positioning claws 31 are both disengaged from / released from the second material.

[0055] For further details, please refer to the appendix. Figure 6 and attached Figure 7As shown, the clamping mechanism 3 also includes a first mounting plate 34, a lifting cylinder 35, a bracket A36, and a bracket B37. The first mounting plate 34 supports the gripper drive mechanism, the material removal mechanism, the elastic gripper 30, and the positioning gripper 31. The first mounting plate 34 is slidably connected to one side of the cylinder body of the lifting cylinder 35 via the bracket A36. The other side of the cylinder body of the lifting cylinder 35 is fixedly connected to one side of the first base plate 1 via the bracket B37. The piston rod of the lifting cylinder 35 can extend and retract along the first direction and is fixedly connected to the first mounting plate 34. Understandably, based on the above direction definition, the lifting cylinder 35 can drive the first mounting plate 34 to perform lifting movements, thereby enabling the structures mounted on the first mounting plate 34 (such as the gripper drive mechanism, the material removal mechanism, the elastic gripper 30, and the positioning gripper 31) to perform synchronous lifting movements. Specifically, when the elastic gripper 30 and the positioning gripper 31 are required to pick up the second material, the lifting cylinder 35 drives the first mounting plate 34 and its structure to move down to a predetermined position. After the second material is picked up, the lifting cylinder 35 drives the first mounting plate 34 and its structure to move up and reset.

[0056] Furthermore, relative to the first mounting plate 34, the specific installation method of the unloading mechanism, the elastic gripper 30, the gripper drive mechanism, etc. in this embodiment is as follows: Please refer to the appendix. Figure 8 To be continued Figure 10 As shown, in this embodiment, a slide rail 340 extending along the second direction is fixedly laid on the first mounting plate 34, and mounting holes A and B are also provided at intervals along the third direction on the first mounting plate 34. Sliding sleeve blocks 341 are fixedly installed in both mounting holes A and B. According to design requirements, mounting holes A and B can be designed to be interconnected or separated. The unloading mechanism includes an unloading cylinder 32, which is fixedly disposed on one side (such as the upper side) of the first mounting plate 34, and the piston rod of the unloading cylinder 32 can extend and retract along the first direction; the base block 300 passes through the mounting hole A and is slidably connected to the sliding sleeve block 341 in the mounting hole A, and one side (such as the upper side) of the base block 300 is also connected to the piston rod of the unloading cylinder 32, and the other side (such as the lower side) extends out of the opposite side of the first mounting plate 34.

[0057] The clamping cylinder 330 is also fixedly mounted on one side (such as the upper side) of the first mounting plate 34. The drive plate 331 passes through the mounting hole B and is slidably connected to the sliding block 341 in the mounting hole B. The drive plate 331 is fixedly connected to the piston rod of the clamping cylinder 330 on one side (such as the upper side) along the first direction. The other side (such as the left or right side) of the two transmission components 332 is slidably connected to the slide rail 340 through the second slider. The cam follower bearing 333 is also installed on the other side (correspondingly the right or left side) of the two transmission components 332.

[0058] In addition, this embodiment also provides a plurality of precision positioning pins 4 on the first mounting plate 34 in the clamping mechanism 3, extending along the first direction (vertical direction) and used to mate with positioning holes A on the external feeding platform and / or injection mold, to improve material picking accuracy. See attached drawing. Figure 4 and attached Figure 7 As shown.

[0059] Next, regarding the suction mechanism 2.

[0060] Please continue to refer to the appendix. Figure 4 and attached Figure 5 As shown, the preferred implementation structure of the suction mechanism 2 in this embodiment is as follows: the suction mechanism 2 is provided with upper and lower cylinders 21, a connecting frame 22, a second mounting plate 23, and an adsorption element 20. The cylinder body of the upper and lower cylinders 21 is fixedly connected to one side of the first substrate 1 via the connecting frame 22, and the piston rod of the upper and lower cylinders 21 can extend and retract along the first direction. The second mounting plate 23 is fixedly connected to the piston rod of the upper and lower cylinders 21, and the second mounting plate 23 is also slidably connected to the cylinder body of the upper and lower cylinders 21. The adsorption element 20 is a vacuum nozzle and is configured in multiples, with multiple adsorption elements 20 spaced apart on the second mounting plate 23. Based on the above directional definition, the upper and lower cylinders 21 drive the second mounting plate 23 and the adsorption elements 20 on it to move up and down, enabling the adsorption element 20 to pick up the first material.

[0061] Furthermore, the second mounting plate 23 in the suction mechanism 2 is also provided with a plurality of precision positioning pins 4 extending along the first direction (vertical direction) and used to mate with positioning holes A on the external feeding platform and / or injection mold, so as to improve the material picking accuracy. See Appendix Figure 4 and attached Figure 7 As shown.

[0062] In addition, please continue to refer to the appendix. Figure 1 and attached Figure 2As shown, in this embodiment, both the suction mechanism 2 and the clamping mechanism 3 are configured in two sets, and the suction mechanism 2 and the clamping mechanism 3 are also spaced apart on one side of the first substrate 1 along the third direction (left-right direction). Of course, this embodiment limits the specific number and arrangement of the suction mechanism 2 and the clamping mechanism 3, which is determined according to product design requirements.

[0063] Next, regarding other structures.

[0064] Please continue to refer to the appendix. Figure 1 and attached Figure 2 As shown, in this embodiment, the gripper further includes a second base plate 5 for connection with an external robotic arm, a guide rail A6 extending along the third direction and fixedly laid on one side of the second base plate 5, and a misalignment cylinder 7 fixedly disposed on the second base plate 5. The first base plate 1 is slidably connected to the guide rail A6 and fixedly connected to the piston rod of the misalignment cylinder 7. It can be understood that the misalignment cylinder 7 can drive the suction mechanism 2 and the gripping mechanism 3 to move synchronously upwards along the third direction, thereby adjusting the position of the suction mechanism 2 and the gripping mechanism 3 relative to the external feeding platform and / or injection mold.

[0065] Furthermore, in this embodiment, a plurality of coarse positioning pins 8 are provided at intervals on the second substrate 5 (such as at the four corners), extending along the first direction (vertical direction) and used to cooperate with the positioning holes B on the external feeding platform and / or the injection mold, so as to improve the material picking accuracy.

[0066] Note: The prefixes "first", "second", etc. (e.g., first substrate, second substrate, etc.) and the suffixes "A", "B", etc. (e.g., bracket A, bracket B, etc.) of the component names in this specification are only for clarity of description and are not intended to limit the scope of implementation of this invention.

[0067] In summary, the gripper for injection molds described in this invention features a compact structure and a high degree of automation and integration. This not only significantly improves operational efficiency, material handling and pressing accuracy, and reduces production costs, but also enhances finished product quality. Furthermore, it facilitates equipment installation, layout, and routine maintenance. Moreover, the gripper can perform non-destructive gripping operations on secondary materials such as metal terminals with excellent clamping stability, which is beneficial for production implementation.

[0068] Many specific details have been set forth in the foregoing description to provide a thorough understanding of the present invention. However, the above description is merely a preferred embodiment of the present invention, and the present invention can be implemented in many other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A gripper for injection molds, characterized in that: The device includes a first substrate (1), and a suction mechanism (2) and a clamping mechanism (3) spaced apart on the first substrate (1). The suction mechanism (2) is provided with an suction member (20) capable of adsorbing and picking up a first material. The clamping mechanism (3) is provided with an elastic gripper (30) capable of elastically clamping and picking up a second material, a positioning gripper (31) capable of clamping, positioning or releasing the second material placed on the elastic gripper (30), and a material release mechanism. When the positioning gripper (31) is in the released state, the material release mechanism can drive the elastic gripper (30) to perform a downward pressing movement to remove the second material from the elastic gripper (30) and press it onto other materials.

2. The gripper for injection molds according to claim 1, characterized in that: The elastic gripper (30) is provided with a base block (300) fixedly connected to the power output end of the unloading mechanism, a plurality of pins (301) provided on the base block (300) and extending out of the first side of the base block (300) to be inserted and engaged with the assembly holes on the second material, two clamping plates (303) respectively slidably connected to the second side of the base block (300) through the first slider (302), and an elastic element (304) connected between the two first sliders (302). Each of the two clamping plates (303) is provided with a plurality of clamping fingers (3030) arranged side by side, and every two clamping fingers (3030) belonging to different clamping plates (303) and adjacent to each other form a pair of clamping fingers (3031) that can elastically clamp the second material, and the plurality of clamping finger pairs (3031) are respectively engaged with the plurality of pins (301); in addition, the first side of the base block (300) is adjacent to its second side.

3. The gripper for injection molds according to claim 2, characterized in that: Define a first direction, a second direction, and a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other; Each clamping plate (303) has a plurality of clamping fingers (3030) extending along the length of the first direction and arranged side by side along the second direction, and the two clamping plates (303) are also arranged parallel to each other along the third direction, and the plurality of clamping fingers (3030) in the two clamping plates (303) are also staggered and partially overlapped in the second direction; correspondingly, the two clamping fingers (3030) in each clamping finger pair (3031) are arranged in a staggered manner.

4. The gripper for injection molds according to claim 3, characterized in that: A guide rail (305) extending in the second direction is fixedly connected to the second side of the base block (300), and two first sliders (302) are spaced apart and slidably connected to the guide rail (305); The two clamping plates (303) are respectively fixedly connected to the two first sliders (302), and the multiple clamping fingers (3030) in the two clamping plates (303) also extend beyond and are perpendicular to the plane of the first side of the base block (300); The elastic element (304) is a spring screw and is elastically and adjustablely connected between the two first sliders (302).

5. The gripper for injection molds according to claim 3, characterized in that: The plurality of pins (301) also extend along the length of the first direction and are arranged side by side along the second direction. The ends of the plurality of pins (301) extending out of the first side of the base block (300) are flush with each other, or the ends of each two adjacent pins (301) extending out of the first side of the base block (300) have the same height difference. In addition, when there is the same height difference between the ends of each two adjacent pins (301) extending out of the first side of the base block (300), an anti-tilting block (306) for preventing the second material from tilting is selectively fixed on the first side of the base block (300) and next to the pins (301).

6. The gripper for injection molds according to claim 3, characterized in that: Two positioning grippers (31) are provided and symmetrically arranged on opposite sides of the elastic gripper (30) along the second direction; The clamping mechanism (3) is further provided with a clamping drive mechanism capable of driving the positioning clamp (31) to move. The clamping drive mechanism is provided with a clamping cylinder (330), a drive plate (331), and two transmission components (332). The piston rod of the clamping cylinder (330) can extend and retract along the first direction and is fixedly connected to the drive plate (331). The drive plate (331) is provided with two guide holes (3310) that extend obliquely relative to the first direction at intervals, and the two guide holes (3310) are also arranged in a figure-eight shape. The two transmission components (332) are arranged at intervals along the second direction and respectively pass through The cam follower bearing (333) is slidably connected to the two guide holes (3310), and one side of each of the two transmission members (332) is respectively placed on opposite sides of the elastic gripper (30) along the second direction to be fixedly connected to the two positioning grippers (31); that is, by driving the drive plate (331) to reciprocate along the first direction through the gripping cylinder (330), the two positioning grippers (31) can be driven to move closer or further apart in the second direction, thereby enabling the two positioning grippers (31) to clamp, position or release the second material placed in the elastic gripper (30).

7. The gripper for injection molds according to claim 6, characterized in that: The clamping mechanism (3) is further provided with a first mounting plate (34), a lifting cylinder (35), a bracket A (36) and a bracket B (37). The first mounting plate (34) is slidably connected to one side of the cylinder body of the lifting cylinder (35) through the bracket A (36). The other side of the cylinder body of the lifting cylinder (35) is fixedly connected to one side of the first base plate (1) through the bracket B (37). The piston rod of the lifting cylinder (35) can extend and retract along the first direction and is fixedly connected to the first mounting plate (34). In addition, a slide rail (340) extending along the second direction is fixedly laid on the first mounting plate (34), and mounting holes A and B are spaced apart along the third direction on the first mounting plate (34). Sliding blocks (341) are fixedly installed in both mounting holes A and mounting holes B. The unloading mechanism includes an unloading cylinder (32), which is fixedly mounted on one side of the first mounting plate (34), and the piston rod of the unloading cylinder (32) can also extend and retract along the first direction; the base block (300) is inserted into the mounting hole A and slidably connected to the sliding sleeve block (341) in the mounting hole A, and one side of the base block (300) is connected to the piston rod of the unloading cylinder (32), and the other side extends out of the opposite side of the first mounting plate (34); The clamping cylinder (330) is also fixedly mounted on one side of the first mounting plate (34). The drive plate (331) passes through the mounting hole B and is slidably connected to the sliding block (341) in the mounting hole B. The drive plate (331) is fixedly connected to the piston rod of the clamping cylinder (330) on one side along the first direction. The other side of the two transmission components (332) is slidably connected to the slide rail (340) through the second slider. The cam follower bearing (333) is also installed on the other side of the two transmission components (332).

8. The gripper for injection molds according to claim 3, characterized in that: The suction mechanism (2) is further provided with upper and lower cylinders (21), a connecting frame (22), and a second mounting plate (23). The cylinder body of the upper and lower cylinders (21) is fixedly connected to one side of the first base plate (1) through the connecting frame (22), and the piston rod of the upper and lower cylinders (21) can extend and retract along the first direction. The second mounting plate (23) is fixedly connected to the piston rod of the upper and lower cylinders (21), and the second mounting plate (23) is also slidably connected to the cylinder body of the upper and lower cylinders (21). The adsorption element (20) is a vacuum nozzle and is configured in multiple ways, with the multiple adsorption elements (20) spaced apart on the second mounting plate (23).

9. The gripper for injection molds according to claim 3, characterized in that: The suction mechanism (2) and the clamping mechanism (3) are spaced apart on one side of the first substrate (1) along the third direction, and the suction mechanism (2) and the clamping mechanism (3) are also provided with a plurality of precision positioning pins (4) extending along the first direction and used to cooperate with positioning holes A on the external feeding platform and / or the injection mold.

10. The gripper for injection molds according to claim 3, characterized in that: The gripper also includes a second base plate (5) for connecting with an external robotic arm, a guide rail A (6) extending along the third direction and fixedly laid on one side of the second base plate (5), and a misalignment cylinder (7) fixedly disposed on the second base plate (5). The first base plate (1) is slidably connected to the guide rail A (6) and fixedly connected to the piston rod of the misalignment cylinder (7). In addition, a plurality of coarse positioning pins (8) are provided at intervals on the second substrate (5) extending along the first direction and used to cooperate with positioning holes B on the external feeding platform and / or injection mold.

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