Gripper for injection mold

Abstract

The utility model discloses a gripper for an injection mold, which comprises a first base plate, and a sucking mechanism and a clamping mechanism which are arranged on the first base plate at an interval, and the sucking mechanism is provided with a sucking piece capable of sucking and picking 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] The utility model relates to the technical field of injection molding, in particular to a gripper for an injection mold. Background Art

[0002] Currently, in the field of electrical connector technology, a process combining injection molding and press-fitting is generally used to implant metal terminals into plastic parts. Specifically, a plastic part is first made using an injection mold. Then, before the plastic part is completely solidified, the metal terminal is sent into the injection mold and press-fitted into the plastic part to produce an injection-molded product. The injection-molded product is then removed from the injection mold.

[0003] The following traditional operating modes are used for the operations of "feeding the metal terminal into the injection mold," "pressing the metal terminal into the plastic part," and "removing the finished injection molded product from the injection mold": 1) Manual loading and press-fitting of the metal terminal and unloading of the finished injection molded product. However, this manual operation is not only labor-intensive and inefficient, but also poses certain safety hazards to the operator due to the high temperature of the newly formed plastic part in the injection mold. 2) Mechanical retrieving and press-fitting mechanisms are used to load and press-fit the metal terminal and unload the finished injection molded product. However, since existing retrieving mechanisms generally only retrieve materials for one type of product, multiple retrieving mechanisms are required to complete the loading and unloading of the metal terminal and the finished injection molded product. This not only increases production costs but also occupies a large amount of production space, hindering equipment installation and layout. Furthermore, due to the irregular structure of the metal terminal, it is difficult to clamp it, resulting in poor operational stability of the retrieving mechanism, which is not conducive to production and processing.

[0004] In view of this, the present utility model is proposed. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the utility model provides a gripper for injection molds, which, on the one hand, has a compact structure and a high degree of automation and integration, which not only greatly improves the operating efficiency, loading and unloading and pressing accuracy, reduces production costs, and improves the quality of finished products, but also facilitates the installation layout and daily maintenance of the equipment; on the other hand, it can realize the clamping operation of the second material such as metal terminals without damage and with good clamping stability, which is beneficial to production implementation.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a gripper for an injection mold, comprising a first substrate, and a suction mechanism and a clamping mechanism spaced apart on the first substrate, the suction mechanism being provided with an adsorption member capable of adsorbing and picking up a first material, the clamping mechanism being provided with an elastic clamping claw capable of elastically clamping and picking up a second material, a positioning clamping claw capable of clamping, positioning or releasing the second material placed on the elastic clamping claw, and a stripping mechanism, wherein when the positioning clamping claw is in a released state, the stripping mechanism can drive the elastic clamping claw to perform a downward pressing movement to detach the second material from the elastic clamping claw and press it onto the plastic part.

[0007] As a further improvement of the present invention, the elastic clamp is provided with a base block fixedly connected to the power output end of the stripping mechanism, a plurality of pins provided on the base block and extending outside the first side of the base block to be plugged into and matched with the assembly holes on the second material, two clamps respectively connected to the second side of the base block through a first slider, and an elastic member connected between the two first sliders, both of the two clamps are provided with a plurality of clamping fingers arranged side by side, and every two of the clamping fingers belonging to different clamps and adjacent to each other constitute a pair of clamping fingers that can elastically clamp the second material, and the plurality of clamping finger pairs are respectively matched with the plurality of pins; 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, and the first direction, the second direction and the third direction are perpendicular to each other; the multiple clamping fingers in each of the clamping plates 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 in parallel along the third direction, and the multiple clamping fingers in the two clamping plates are also staggered and partially overlapped in the second direction; accordingly, the two clamping fingers in each of the clamping finger pairs are staggered.

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

[0010] The two clamping plates are respectively fixedly connected to the two first sliding blocks, and the plurality of clamping fingers in the two clamping plates are also beyond and perpendicular to the plane where the first side of the base block is located;

[0011] The elastic member adopts a spring screw and is elastically and adjustably connected between the two first sliding blocks.

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

[0013] In addition, when the ends of each two adjacent pins extending outside the first side of the base block have the same height difference, an anti-tilt 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 clamps are provided in two pieces and are symmetrically arranged on opposite sides of the elastic clamp along the second direction;

[0015] The clamping mechanism is also provided with a clamping jaw driving mechanism capable of driving the positioning clamping jaws to move, and the clamping jaw driving mechanism is provided with a clamping cylinder, a driving plate and two transmission members, the piston rod of the clamping cylinder can telescopically move along the first direction and is fixedly connected to the driving plate, and two guide holes are provided at intervals on the driving plate, both of which extend obliquely relative to the first direction, and the two guide holes are also arranged in an eight-shaped shape; the two transmission members are arranged at intervals along the second direction and are respectively slidably connected to the two guide holes through cam follower bearings, and one side of the two transmission members is also respectively placed on the opposite sides of the elastic clamping jaws along the second direction to be fixedly connected to the two positioning clamping jaws; that is: the driving plate is driven to reciprocate along the first direction by the clamping cylinder, which can drive the two positioning clamping jaws to move closer or farther away in the second direction, thereby realizing that the two positioning clamping jaws can clamp, position or release the second material placed in the elastic clamping jaws.

[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, 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 telescopically move 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 mounting holes B are also spaced apart on the first mounting plate along the third direction, and sliding sleeve blocks are fixedly installed in both the mounting holes A and the mounting holes B;

[0017] The stripping mechanism includes a stripping cylinder, which is fixedly mounted on one side of the first mounting plate, and the piston rod of the stripping cylinder can also telescopically move along the first direction; the base block is inserted into the mounting hole A and is 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 stripping cylinder, and the other side extends out of the opposite side of the first mounting plate;

[0018] The clamping cylinder is also fixedly arranged on one side of the first mounting plate, the driving plate is passed through the mounting hole B and is slidably connected to the sliding block in the mounting hole B, and the driving 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 members are respectively slidably connected to the slide rail through a second slider, and the cam follower bearings are also respectively installed on the other sides of the two transmission members.

[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 bodies of the upper and lower cylinders are fixedly connected to one side of the first base plate through the connecting frame, and the piston rods of the upper and lower cylinders are capable of telescopic movement along the first direction; the second mounting plate is fixedly connected to the piston rods of the upper and lower cylinders, and the second mounting plate is also slidably connected to the cylinder bodies of the upper and lower cylinders;

[0020] The adsorption member adopts a vacuum suction nozzle and is provided in plurality, and the plurality of adsorption members are arranged on the second mounting plate at intervals.

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

[0022] As a further improvement of the present invention, the gripper also includes a second substrate for connecting to an external manipulator, a guide rail A extending along the third direction and fixedly laid on one side of the second substrate, and a staggered cylinder fixedly set on the second substrate. The first substrate is slidably connected to the guide rail A and fixedly connected to the piston rod of the staggered cylinder; in addition, a plurality of coarse positioning pins extending along the first direction and used to cooperate with the positioning holes B on the external feeding platform and / or the injection mold are arranged at intervals on the second substrate.

[0023] The beneficial effects of the present utility model are as follows: ① Compared with the prior art, the gripper of the present utility model integrates multiple functions such as "automatic material absorption", "automatic material clamping" and "automatic material pressing", that is, through one gripper, it is possible to realize automatic loading and unloading and pressing operations for various types of products, which not only greatly improves the working efficiency and reduces the production cost, but also ensures high loading and unloading accuracy and high pressing accuracy, thereby greatly improving the quality of the finished product. ② When the gripper of the present utility model picks up the second material such as the metal terminal, it first uses the elastic clamping claw that can be adaptively adjusted according to the shape of the second material to elastically clamp the second material, which can ensure accurate clamping and avoid damage to the surface of the second material due to excessive clamping force; then uses the positioning clamping claw to clamp and position the second material, which can ensure stable clamping of the second material. In short, the clamping mechanism of the present utility model can realize non-damaging and stable clamping operations for the second material such as the metal terminal, which is beneficial to production implementation. ③ The gripper of the present utility model has a reasonable and compact structure, does not take up too much production space, and is very beneficial to the installation layout and daily maintenance of the equipment. ④ Based on the gripper described in the utility model, the operator only needs to be responsible for remote monitoring and handling incidental events, without the need for on-site operations, which greatly reduces the labor intensity and labor costs of the operator and avoids the safety hazards of existing manual operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the gripper for the injection mold of the present invention from a first viewing angle;

[0025] Figure 2 This is a schematic structural diagram of the gripper for the injection mold of the present invention at a second viewing angle;

[0026] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A shown in FIG;

[0027] Figure 4 This is the partial structural intention of the gripper for the injection mold of the utility model;

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

[0029] Figure 6 for Figure 4 The enlarged structural intention of the clamping mechanism shown in FIG;

[0030] Figure 7 for Figure 4 The schematic diagram of the structure of the partial structure of the gripper shown in FIG is from another perspective;

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

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

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

[0034] Figure 11 for Figure 6 The fourth schematic diagram of the partial structure of the clamping mechanism shown in FIG.

[0035] Figure 12 This is a schematic diagram of the state when the latch of the utility model is initially positioning the second material;

[0036] Figure 13 for Figure 12 Schematic diagram of the state in which the latch is initially positioning the second material and is in another viewing angle;

[0037] Figure 14 This is a schematic diagram of the state when the clamping plate of the utility model elastically clamps the second material;

[0038] Figure 15 This is a schematic diagram of the layout of the splint of the present invention.

[0039] The following description is made with reference to the accompanying drawings:

[0040] 1. First substrate; 2. Suction mechanism; 20. Adsorption element; 21. Upper and lower cylinders; 22. Connecting frame; 23. Second mounting plate; 3. Clamping mechanism; 30. Elastic clamping claw; 300. Base block; 301. Latch; 302. First slider; 303. Clamping plate; 3030. Clamping finger; 3031. Clamping finger pair; 304. Elastic element; 3040. Screw; 3041. Spring; 305. Guide rail; 306. Anti-locking mechanism Inclined block; 31. Positioning clamp; 32. Stripping cylinder; 330. Clamping cylinder; 331. Drive plate; 3310. Guide hole; 332. Transmission member; 333. Cam follower bearing; 34. First mounting plate; 340. Slide rail; 341. Slide block; 35. Lifting cylinder; 36. Bracket A; 37. Bracket B; 4. Fine positioning pin; 5. Second base plate; 6. Guide rail A; 7. Offset cylinder; 8. Coarse positioning pin. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] Example 1:

[0043] Please see the attached Figure 1To the attached Figure 15 As shown, this embodiment 1 provides a gripper for an injection mold, 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 sucking and picking up a first material (such as a plastic part P), the clamping mechanism 3 is provided with an elastic clamping claw 30 capable of elastically clamping and picking up a second material (such as a metal terminal T), a positioning clamping claw 31 capable of clamping, positioning or releasing the second material placed on the elastic clamping claw 30, and a stripping mechanism, and when the positioning clamping claw 31 is in a released state, the stripping mechanism can drive the elastic clamping claw 30 to perform a downward pressing movement to detach the second material from the elastic clamping claw 30 and press it onto other materials (such as the plastic part P). It is understandable that the gripper described in this embodiment integrates multiple functions such as "automatic material absorption", "automatic material clamping" and "automatic material pressing". Through one gripper, it is possible to realize automatic loading and unloading and pressing operations for various types of products, which not only greatly improves the working efficiency and reduces the production cost, but also ensures high loading and unloading accuracy and high pressing accuracy, thereby greatly improving the quality of the finished product. In addition, when using the clamping mechanism 3 to pick up the second material such as the metal terminal, the elastic clamping claw that can be adaptively adjusted according to the shape of the second material is first used to elastically clamp the second material, which can ensure accurate clamping and avoid damage to the surface of the second material due to excessive clamping force; then the positioning claw is used to clamp and position the second material, which can ensure stable clamping of the second material; that is, the clamping mechanism 3 in the gripper described in this embodiment can realize a non-damaging and stable clamping operation for the second material such as the metal terminal, which is very beneficial for production implementation.

[0044] The specific structure of the gripper described in this embodiment is described in detail below.

[0045] First, let's discuss the clamping mechanism 3 .

[0046] In the structure of the clamping mechanism 3 described in this embodiment, the elastic clamping claw 30 preferably adopts the following implementation structure: Figure 6 , Attachment Figure 8 To the attached Figure 15As shown, the elastic clamp 30 is provided with a base block 300 fixedly connected to the power output end of the stripping 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 plugged into the assembly holes on the second material, two clamps 303 respectively connected to the second side of the base block 300 (the second side of the base block 300 is adjacent to its first side) through a first slider 302, and an elastic member 304 connected between the two first sliders 302, both of the two clamps 303 are provided with a plurality of clamping fingers 3030 arranged side by side, and every two of the clamping fingers 3030 belonging to different clamps 303 and adjacent to each other constitute a clamping finger pair 3031 capable of elastically clamping the second material, and the plurality of clamping finger pairs 3031 are also respectively matched with the plurality of pins 301. It is understandable that in the elastic clamp 30, the pin 301 is used to insert and position the first portion of the second material (such as a metal terminal) (see attached Figure 12 As shown in FIG2 ), the two clamping plates 303 together form a plurality of clamping finger pairs 3031 for adaptively elastically clamping the second portion of the second material (see FIG2 ). Figure 14 As shown); by combining the latch 301 and the clamping plate 303 (the clamping finger pair 3031), a precise, damage-free, and clamping operation with a certain clamping force can be achieved on the second material.

[0047] Furthermore, the specific forming structure of the clamping finger pair 3031 in this embodiment is as follows: first define a first direction, a second direction and a third direction perpendicular to each other, such as: Figure 1 The first direction can be the vertical direction, the second direction can be the front-back direction, and the third direction can be the left-right direction. Figure 14 and attached Figure 15 As shown, the multiple clamping fingers 3030 in each of the clamping plates 303 are all extended along the first direction and arranged side by side along the second direction. It can be understood that the multiple clamping fingers 3030 in each of the clamping plates 303 are all vertical strips and arranged side by side along the front-to-back direction; and the two clamping plates 303 are also arranged in parallel along the third direction, and the multiple 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 arranged in parallel in the left-right direction and staggered and partially overlapped in the front-to-back direction. As for "staggered and partially overlapped in the front-to-back direction", it can be understood as: Figure 15In the example of the 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 manner with the first three clamping fingers 3030 in the right clamping plate 303, and the remaining two clamping fingers 3030 are arranged separately. Thus, the first clamping finger 3030 in the left clamping plate 303 is offset from the first clamping finger 3030 in the right clamping plate 303, and together they form the first clamping finger pair 3031. Similarly, the fourth clamping finger 3030 in the left clamping plate 303 is offset from the fourth clamping finger 3030 in the right clamping plate 303, and together they form 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 , and the two clamping fingers 3030 in each clamping finger pair 3031 belong to different clamping plates 303 and are arranged adjacent to each other and staggered.

[0048] Furthermore, the specific assembly method between the base block 300, the clamping plate 303 and the elastic member 304 in this embodiment is as follows: Figure 9 To the attached 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, and the two first sliders 302 are spaced apart and slidably connected to the guide rail 305 (it can be understood that the two first sliders 302 are spaced apart and arranged along the second direction); the two splints 303 are respectively fixedly connected to the two first sliders 302 (such as preferably being connected as one piece), and the multiple clamping fingers 3030 in the two splints 303 also exceed (extend) and are perpendicular to the plane where the first side of the base block 300 is located; the elastic member 304 adopts a spring screw and is elastically and adjustably connected between the two first sliders 302 to provide elastic force to the two first sliders 302 / the two splints 303 (specifically the clamping finger pairs 3031).

[0049] Note: ① Based on the above direction 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 side or right side. ② The spring screw is a well-known part, see the attached Figure 14 As shown, it conventionally includes a screw 3040 and a spring 3041 sleeved outside the screw 3040. By tightening or loosening the screw 3040, the compression degree of the spring 3041 can be adjusted, and then the elastic force between the two clamps 303 (specifically, the clamping finger pair 3031) can be adjusted.

[0050] Furthermore, the specific assembly method between the latch 301 and the base block 300 in this embodiment is as follows: Figure 12 and attached Figure 13 As shown, in this embodiment, multiple latches 301 are partially embedded in the base block 300 through an injection molding process. One end of each of the latches 301 extends outside the first side of the base block 300 to engage with the assembly holes in the second material. Based on the above directional definitions, it can be understood that the multiple latches 301 extend in the vertical direction (the first direction), and the lower ends of the multiple latches 301 extend outside the lower side of the base block 300.

[0051] Furthermore, based on the fact that the plurality of 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 be matched one-to-one with the plurality of finger pairs 3031. In addition, based on the arrangement of the metal terminal groups, the structure / layout of the pins 301 is further defined as follows: ① When the metal terminal groups are arranged in a row, the ends of the plurality of pins 301 extending outside the first side of the base block 300 are flush, that is, the lower ends of the plurality of pins 301 are flush; ② When the metal terminal groups are arranged in two rows, the ends of each two adjacent pins 301 extending outside the first side of the base block 300 have the same height difference, that is, the lower ends of the plurality of pins 301 are uneven and not flush. Furthermore, when the height difference between the ends of each two adjacent latches 301 extending out of the first side of the base block 300 is the same, an anti-tilt block 306 for preventing the second material from tilting is selectively fixedly provided on the first side of the base block 300 and located next to the latches 301. Figure 3 As can be understood, when the lower ends of the plurality of latches 301 are not aligned, the spacing between the lower ends of the plurality of latches 301 and the lower side of the base block 300 varies, with some being larger and some being smaller. When the spacing between the lower ends of the latches 301 and the lower side of the base block 300 is smaller, the second material can be pressed against the lower side of the base block 300 after the latches 301 are inserted into the assembly holes on the second material. However, when the spacing between the lower ends of the latches 301 and the lower side of the base block 300 is larger, a gap still exists between the second material and the lower side of the base block 300 after the latches 301 are inserted into the assembly holes on the second material, and the second material may tilt or swing. In this case, the anti-tilt block 306 can be provided to press the second material against the anti-tilt block 306, thereby preventing tilting and instability.

[0052] In the structure of the clamping mechanism 3 of this embodiment, the preferred implementation structure of the positioning clamp 31 is: Figure 8 To the attached Figure 10 As shown, the positioning jaws 31 are provided in two pieces and are arranged mirror-symmetrically on opposite sides of the elastic jaw 30 along the second direction. Furthermore, the two positioning jaws 31 have U-shaped fork structures at opposite ends for clamping and positioning the second material.

[0053] The structure for achieving the two positioning jaws 31 to clamp and position or release the second material placed on the elastic jaws 30 is as follows: Figure 8 To the attached Figure 11 As shown, the clamping mechanism 3 is also provided with a clamping claw driving mechanism capable of driving the positioning clamping claw 31 to move, and the clamping claw driving mechanism is provided with a clamping cylinder 330, a driving plate 331 and two transmission members 332. The piston rod of the clamping cylinder 330 can move telescopically along the first direction and is fixedly connected to the driving plate 331. Two guide holes 3310 are provided on the driving plate 331 at intervals, both of which extend obliquely relative to the first direction, and the two guide holes 3310 are also arranged in an eight-shaped shape; the two transmission members 332 are arranged at intervals along the second direction and are driven by cams respectively. The bearing 333 is slidably connected to the two guide holes 3310, and one side of the two transmission members 332 is also respectively placed on the opposite sides of the elastic clamp 30 along the second direction to be fixedly connected to the two positioning clamps 31; that is: the driving plate 331 is driven to reciprocate along the first direction by the clamping cylinder 330, which can drive the two positioning clamps 31 to move closer or farther away from each other in the second direction, thereby realizing that the U-shaped fork structure on the two positioning clamps 31 can clamp, position or release the second material placed in the elastic clamp 30. Specifically, based on the above-mentioned direction definition, when the clamping cylinder 330 drives the driving plate 331 to move downward, it can drive the two positioning jaws 31 to move closer to each other, so that the U-shaped fork structures on the two positioning jaws 31 are both inserted into the outside of the second material to clamp and position the second material; and when the clamping cylinder 330 drives the driving plate 331 to move upward, it can drive the two positioning jaws 31 to move away from / away from each other, so that the two positioning jaws 31 are both separated from / released from the second material.

[0054] For further information, please refer to the attached Figure 6 and attached Figure 7As shown, the clamping mechanism 3 is further provided with a first mounting plate 34, a lifting cylinder 35, a bracket A36 and a bracket B37, wherein the first mounting plate 34 is used to bear the clamping claw drive mechanism, the stripping mechanism, the elastic clamping claw 30 and the positioning clamping claw 31, the first mounting plate 34 is slidably connected to one side of the cylinder body of the lifting cylinder 35 through the bracket A36, and 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 B37, and the piston rod of the lifting cylinder 35 can telescopically move along the first direction and is fixedly connected to the first mounting plate 34. It can be understood that based on the above-mentioned direction definition, the lifting cylinder 35 can drive the first mounting plate 34 to perform lifting and lowering movements, thereby realizing the synchronous lifting and lowering movements of the structures provided on the first mounting plate 34 (such as the above-mentioned clamping claw drive mechanism, the stripping mechanism, the elastic clamping claw 30 and the positioning clamping claw 31). Specifically, when the elastic clamp 30 and the positioning clamp 31 are needed to pick up the second material in combination, the lifting cylinder 35 drives the first mounting plate 34 and the structure thereon to move down to a predetermined position. After picking up the second material, the lifting cylinder 35 drives the first mounting plate 34 and the structure thereon to move up and reset.

[0055] Furthermore, relative to the first mounting plate 34, the specific installation method of the stripping mechanism, the elastic clamping claw 30, the clamping claw driving mechanism, etc. in this embodiment is as follows: Please continue to refer to the attached Figure 8 To the attached 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 a mounting hole A and a mounting hole B are also spaced apart along the third direction on the first mounting plate 34. Sliding blocks 341 are fixedly installed in the mounting hole A and the mounting hole B, and according to design requirements, the mounting hole A and the mounting hole B can be designed to be mutually connected or isolated. The stripping mechanism includes a stripping cylinder 32, which is fixedly set on one side (such as the upper side) of the first mounting plate 34, and the piston rod of the stripping cylinder 32 can be telescopically moved along the first direction; the base block 300 is inserted into the mounting hole A and is slidably connected to the sliding 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 stripping cylinder 32, and the other side (such as the lower side) extends out of the opposite side of the first mounting plate 34.

[0056] The clamping cylinder 330 is also fixedly arranged on one side (such as the upper side) of the first mounting plate 34, the driving plate 331 is inserted into the mounting hole B and is slidingly connected to the sliding block 341 in the mounting hole B, and the driving plate 331 is fixedly connected to the piston rod of the clamping cylinder 330 along one side (such as the upper side) of the first direction; the other side (such as the left side or the right side) of the two transmission members 332 is respectively slidably connected to the slide rail 340 through a second slider, and the cam follower bearing 333 is also respectively installed on the other side (correspondingly the right side or the left side) of the two transmission members 332.

[0057] In addition, in this embodiment, a plurality of precision positioning pins 4 extending in the first direction (up and down direction) are arranged on the first mounting plate 34 of the clamping mechanism 3 to cooperate with the positioning holes A on the external feeding platform and / or the injection mold to improve the picking accuracy. Figure 4 and attached Figure 7 shown.

[0058] Next, let's discuss the suction mechanism 2 .

[0059] Please continue to refer to the attached Figure 4 and attached Figure 5 As shown, the preferred implementation structure of the suction mechanism 2 of this embodiment is as follows: the suction mechanism 2 is provided with an upper and lower cylinder 21, a connecting frame 22, a second mounting plate 23, and an adsorbent 20, wherein the cylinder bodies of the upper and lower cylinders 21 are fixedly connected to one side of the first base plate 1 via the connecting frame 22, and the piston rods of the upper and lower cylinders 21 are capable of telescopic movement along the first direction; the second mounting plate 23 is fixedly connected to the piston rods of the upper and lower cylinders 21, and the second mounting plate 23 is also slidably connected to the cylinder bodies of the upper and lower cylinders 21; the adsorbent 20 is a vacuum suction nozzle and is provided in a plurality, with the plurality of adsorbents 20 being spaced apart on the second mounting plate 23. Based on the above-mentioned direction definition, the upper and lower cylinders 21 drive the second mounting plate 23 and the adsorbent 20 thereon to perform lifting and lowering movements, so that the adsorbent 20 can pick up the first material.

[0060] Furthermore, the second mounting plate 23 in the suction mechanism 2 is also provided with a plurality of precision positioning pins 4 extending in the first direction (up and down direction) and used to cooperate with the positioning holes A on the external feeding platform and / or the injection mold to improve the picking accuracy. Figure 4 and attached Figure 7 shown.

[0061] In addition, please refer to the attached Figure 1 and attached Figure 2As shown, in this embodiment, the suction mechanism 2 and the clamping mechanism 3 are each provided in two groups, and the suction mechanism 2 and the clamping mechanism 3 are further spaced apart along the third direction (left-right direction) on one side of the first substrate 1. Of course, this embodiment limits the specific number and arrangement of the suction mechanism 2 and the clamping mechanism 3, which are determined based on product design requirements.

[0062] Next, let’s talk about other structures.

[0063] Please continue to refer to the attached Figure 1 and attached Figure 2 As shown, in this embodiment, the gripper further includes a second base plate 5 for connecting to an external manipulator, a guide rail A6 extending along the third direction and fixedly laid on one side of the second base plate 5, and a displacement cylinder 7 fixedly provided 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 displacement cylinder 7. It can be understood that the displacement cylinder 7 can drive the suction mechanism 2 and the clamping mechanism 3 to move synchronously in the third direction, so that the suction mechanism 2 and the clamping mechanism 3 can be adjusted relative to the external feeding platform and / or the injection mold.

[0064] Furthermore, this embodiment also has a plurality of coarse positioning pins 8 extending along the first direction (up and down direction) spaced apart on the second substrate 5 (such as at the four corners) and used to cooperate with the positioning holes B on the external feeding platform and / or the injection mold to improve the picking accuracy.

[0065] Note: In this specification, the prefixes "first", "second", etc. of component names (such as the first substrate, the second substrate, etc.), and the suffixes "A", "B", etc. of component names (such as bracket A, bracket B, etc.) are only for the convenience of description and are not intended to limit the scope of implementation of this utility model patent.

[0066] In summary, the gripper for injection molds of the present invention boasts a compact structure and a high degree of automation and integration. This significantly improves operational efficiency, loading and unloading, and press-fitting accuracy, reduces production costs, and enhances finished product quality. It also facilitates equipment installation and routine maintenance. Furthermore, the gripper can achieve non-destructive, stable gripping of secondary materials, such as metal terminals, facilitating production operations.

[0067] In the above description, many specific details are set forth in order to fully understand the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person skilled in the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A gripper for an injection mold, characterized in that: The invention comprises a first substrate (1), and a suction mechanism (2) and a clamping mechanism (3) arranged at intervals on the first substrate (1), wherein the suction mechanism (2) is provided with an adsorption member (20) capable of adsorbing and picking up a first material, and the clamping mechanism (3) is provided with an elastic clamping claw (30) capable of elastically clamping and picking up a second material, a positioning clamping claw (31) capable of clamping, positioning or releasing the second material placed on the elastic clamping claw (30), and a stripping mechanism, wherein when the positioning clamping claw (31) is in a released state, the stripping mechanism can drive the elastic clamping claw (30) to perform a downward pressing movement, so as to separate the second material from the elastic clamping claw (30) and press it onto the plastic part.

2. The gripper for injection mold according to claim 1, characterized in that: The elastic clamp (30) is provided with a base block (300) fixedly connected to the power output end of the stripping mechanism, a plurality of latches (301) provided on the base block (300) and extending outside the first side of the base block (300) to be plugged into and matched with the assembly holes on the second material, two clamps (303) respectively connected to the second side of the base block (300) through first sliders (302), and an elastic member (304) connected between the two first sliders (302), the two clamps (303) are provided with a plurality of clamping fingers (3030) arranged side by side, and every two of the clamping fingers (3030) belonging to different clamps (303) and adjacent to each other together form a clamping finger pair (3031) capable of elastically clamping the second material, and the plurality of clamping finger pairs (3031) are respectively matched with the plurality of latches (301) in a one-to-one manner; in addition, the first side of the base block (300) is adjacent to its second side.

3. The gripper for injection mold according to claim 2, characterized in that: defining 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; The plurality of clamping fingers (3030) in each of the clamping plates (303) extend along the length of the first direction and are arranged side by side along the second direction, and the two clamping plates (303) are also arranged in parallel 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; accordingly, the two clamping fingers (3030) in each of the clamping finger pairs (3031) are staggered.

4. The gripper for injection mold according to claim 3, characterized in that: A guide rail (305) extending along the second direction is fixedly connected to the second side of the base block (300), and two first sliding blocks (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 sliding blocks (302), and the plurality of clamping fingers (3030) in the two clamping plates (303) are also extended beyond and perpendicular to the plane where the first side of the base block (300) is located; The elastic member (304) adopts a spring screw and is elastically and adjustably connected between the two first sliding blocks (302).

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

6. The gripper for injection mold according to claim 3, characterized in that: The positioning clamps (31) are provided in two pieces and are symmetrically arranged on opposite sides of the elastic clamps (30) along the second direction; The clamping mechanism (3) is further provided with a clamping claw driving mechanism capable of driving the positioning clamping claw (31) to move. The clamping claw driving mechanism is provided with a clamping cylinder (330), a driving plate (331) and two transmission members (332). The piston rod of the clamping cylinder (330) can move telescopically along the first direction and is fixedly connected to the driving plate (331). Two guide holes (3310) are provided on the driving plate (331) at intervals and both extend obliquely relative to the first direction. The two guide holes (3310) are also arranged in an eight-shaped shape. The two transmission members (332) are arranged at intervals along the second direction and are respectively connected by The cam follower bearing (333) is slidably connected to the two guide holes (3310), and one side of the two transmission members (332) is also respectively placed on the opposite sides of the elastic clamping jaw (30) along the second direction to be fixedly connected to the two positioning clamping jaws (31); that is, the driving plate (331) is driven to reciprocate along the first direction by the clamping cylinder (330), which can drive the two positioning clamping jaws (31) to move closer to or away from each other in the second direction, thereby realizing that the two positioning clamping jaws (31) can clamp, position or release the second material placed in the elastic clamping jaw (30).

7. The gripper for injection mold 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 substrate (1) through the bracket B (37); the piston rod of the lifting cylinder (35) is capable of telescopic movement 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 a mounting hole A and a mounting hole B are also provided on the first mounting plate (34) at intervals along the third direction, and a sliding sleeve block (341) is fixedly installed in each of the mounting hole A and the mounting hole B; The stripping mechanism includes a stripping cylinder (32), the stripping cylinder (32) is fixedly arranged on one side of the first mounting plate (34), and the piston rod of the stripping cylinder (32) can also move telescopically along the first direction; the base block (300) is inserted into the mounting hole A and is slidably connected to the sliding block (341) in the mounting hole A, and one side of the base block (300) is connected to the piston rod of the stripping cylinder (32), and the other side extends out of the other side opposite to the first mounting plate (34); The clamping cylinder (330) is also fixedly arranged on one side of the first mounting plate (34), the driving plate (331) is inserted into the mounting hole B and is slidably connected to the sliding block (341) in the mounting hole B, and the driving plate (331) is fixedly connected to the piston rod of the clamping cylinder (330) along one side of the first direction; the other sides of the two transmission members (332) are respectively slidably connected to the slide rail (340) through a second slider, and the other sides of the two transmission members (332) are also respectively installed with the cam follower bearing (333).

8. The gripper for injection mold according to claim 3, characterized in that: The suction mechanism (2) is further provided with an upper and lower cylinder (21), a connecting frame (22) and a second mounting plate (23); the cylinder bodies of the upper and lower cylinders (21) are fixedly connected to one side of the first base plate (1) via the connecting frame (22), and the piston rods of the upper and lower cylinders (21) are capable of telescopic movement along the first direction; the second mounting plate (23) is fixedly connected to the piston rods of the upper and lower cylinders (21), and the second mounting plate (23) is also slidably connected to the cylinder bodies of the upper and lower cylinders (21); The adsorption member (20) adopts a vacuum suction nozzle and is provided in a plurality, and the plurality of adsorption members (20) are arranged on the second mounting plate (23) at intervals.

9. The gripper for injection mold according to claim 3, characterized in that: The suction mechanism (2) and the clamping mechanism (3) are arranged on one side of the first substrate (1) at intervals 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 the positioning holes A on the external feeding platform and / or the injection mold.

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

Images