Flexible clamping jaw device for injection molding and pre-burying of micro parts and operation method

Abstract

The invention belongs to the field of machining and manufacturing, and provides a flexible clamping jaw device for injection molding and pre-burying of micro parts and an operation method. The feeding mechanism is arranged on the tool plate, the feeding mechanism is provided with a material moving area and a material detecting area, a material moving plate is movably arranged in the material moving area, the material moving plate is used for symmetrically arranging a plurality of tiny parts at intervals, and the material moving plate is pushed to the material detecting area through the feeding mechanism; and the material detection area is used for detecting the positions of a plurality of micro parts subjected to pre-embedded injection molding. Compared with the prior art, the flexible clamping jaw has the advantages that the flexible clamping jaw can better adapt to parts of different sizes and shapes, higher compatibility and longer service life are achieved, the risk that the parts are damaged by clamping is reduced, magnetic interference is not likely to happen, an embedded part can be more stably placed in a mold, and the production efficiency is improved. And meanwhile, a large number of micro parts can be pre-embedded in place at a time, the whole working rhythm time is saved, and the production flexibility and efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the field of processing and manufacturing, and in particular relates to a flexible clamping claw device and an operating method for injection molding pre-embedding of tiny parts. Background Art

[0002] In the current micro-parts injection molding embedding process, the precise placement of embedded parts is a common problem. Especially when dealing with very small parts, the limitations of the metal elastic parts used in the traditional method as embedded fixtures become particularly obvious. On the one hand, due to the physical properties of the metal elastic parts themselves, they often cannot provide sufficient gripping force, causing the embedded parts to shift or fail to fully fall into place when placed in the mold. On the other hand, metal elastic parts are prone to wear after long-term use, shortening their service life and requiring frequent replacement, which undoubtedly increases maintenance costs and reduces production efficiency.

[0003] In addition, metal fixtures are easily affected by environmental magnetic fields, especially in some magnetic production environments, which may cause embedded parts to be incorrectly adsorbed or fall off. In this case, not only may the embedded parts not be correctly placed in the specified position, but they may even get stuck inside the mold, causing greater problems. In addition, the design of metal fixtures is usually relatively simple and difficult to adapt to tiny parts of different types and shapes. This also requires the corresponding fixture to be replaced when changing product types, adding additional workload. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a flexible clamping claw device and an operating method for pre-embedding of micro parts by injection molding.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a flexible clamping claw device for injection molding pre-embedded micro parts, comprising: a tooling plate; A feeding mechanism is arranged on the tooling plate, the feeding mechanism is provided with a material transfer area and a material inspection area, a material transfer plate is movably arranged in the material transfer area, the material transfer plate is used to arrange a plurality of tiny parts in an interval and symmetrical manner, and the material transfer plate is pushed to the material inspection area by the feeding mechanism; the material inspection area is used to detect the positions of a plurality of tiny parts to be pre-embedded and injection molded; A manipulator is arranged on the tooling plate and located on one side of the feeding mechanism, the movable end of the manipulator is connected to a rotating frame, one side of the rotating frame is connected to a plurality of flexible clamps, and the plurality of flexible clamps are arranged one-to-one with the plurality of tiny parts on the material transfer plate; at least two clamping members are installed on the other side of the rotating frame, and the clamping members are used to grab the workpiece processed in the injection molding machine and transfer it to the outside of the tooling plate; When the material transfer plate drives the plurality of the micro parts to approach the material inspection area, the movable end of the manipulator is used to drive the rotating frame to move and press against the material transfer plate, so that the plurality of the flexible clamps grasp the plurality of the micro parts one by one; When several tiny parts on the rotating frame have been inspected by the inspection area, the robot can synchronously transfer several tiny parts in the flexible clamps to the injection molding machine for pre-embedded injection molding, and take out the workpieces through the clamping member after the injection molding is completed.

[0006] In the above-mentioned flexible clamping jaw device for injection molding and embedding of tiny parts, each of the flexible clamping jaws is provided with a plurality of clamping blocks distributed in a ring-shaped interval, and each of the clamping blocks is provided with a locking arc surface and a buffer slope. The locking arc surface is arranged parallel to the axial direction of the flexible clamping jaw and is close to the clamping end of the flexible clamping jaw; the buffer slope is arranged in the flexible clamping jaw, one end of the buffer slope is connected to the locking arc surface, and the other end is close to the axial center line of the flexible clamping jaw.

[0007] In the above-mentioned flexible clamping device for pre-embedding of micro parts by injection molding, the material transfer area includes: An installation platform is arranged on the tooling plate, and both ends of the installation platform are equipped with fixing seats; A lead screw and a movable block, one end of the lead screw is connected to a driving motor, and the other end is movably connected to the fixed seat; the movable block is movably sleeved on the lead screw, and the movable block is connected to the material moving plate, so that when the driving motor is turned on, it can drive the material moving plate to reciprocate in the length direction of the lead screw; The guide posts are located on both sides of the lead screw and connected to the fixing seat. A guide hole is provided in the movable block, and the guide hole is movably sleeved on the guide posts.

[0008] In the above-mentioned flexible clamping claw device for injection molding pre-embedding of tiny parts, a mounting plate is provided on the rotating frame, and a plurality of assembly blocks are detachably connected to the mounting plate. The plurality of assembly blocks are evenly distributed and perpendicular to the mounting plate, so that a plurality of the flexible clamping claws can be installed one by one on the assembly blocks.

[0009] In the above-mentioned flexible clamping claw device used for injection molding pre-embedding of tiny parts, the mounting plate is also symmetrically provided with fixing blocks, the fixing blocks are connected with positioners, the material transfer plate is symmetrically provided with positioning grooves and positioning bosses, the positioners are movably inserted in the positioning grooves, so that a plurality of the flexible clamping claws can grasp a plurality of the tiny parts placed on the positioning bosses one by one.

[0010] In the above-mentioned flexible clamping claw device for pre-embedding of micro parts by injection molding, the material inspection area includes: A fixing bracket arranged in a triangular shape, connected to a side wall of the mounting bracket close to the manipulator; The detection platform is arranged on the fixed bracket, and a plurality of detection parts are spaced and symmetrically distributed on the detection platform. The positions of the plurality of detection parts are arranged corresponding to the positions of a plurality of tiny parts pre-embedded and injection-molded on the workpiece.

[0011] In the above-mentioned flexible clamping device for pre-embedding of injection molding of tiny parts, each of the clamping members includes a clamping cylinder and a first clamping jaw and a second clamping jaw arranged at the driving end of the clamping cylinder, and the opposite ends of the first clamping jaw and the second clamping jaw are detachably connected with a clamping block, and the clamping block can grasp the workpiece in the injection molding machine when the first clamping jaw and the second clamping jaw approach each other.

[0012] In the above-mentioned flexible clamping claw device for injection molding pre-embedding of tiny parts, the feeding mechanism also includes: A position sensor is arranged on the mounting platform, and the position sensor is used to transmit a signal that the material moving plate is at a position of the lead screw close to the end of the material checking area; A laser marking machine and a scanner are arranged on the tooling plate. The laser marking machine is used to mark and distinguish the workpieces after the injection molding is completed, and the scanner is used to scan and detect the codes.

[0013] In the above-mentioned flexible clamping device for pre-embedding of injection molding of tiny parts, a conveyor belt and several air coolers are also provided on the tooling plate. The air coolers are arranged on the conveyor belt and form a cooling chamber together with the conveyor belt, so that when the conveyor belt transfers the workpiece after injection molding, the workpiece can be cooled by the air coolers.

[0014] The technical solution adopted by the present invention to solve the technical problem is to also propose an operation method, comprising the following steps: S1. Place several tiny parts that need to be pre-embedded for injection molding on the material transfer plate, and move the material transfer plate closer to the manipulator when the movable block makes a linear motion on the lead screw; S2. The movable end of the manipulator moves the rotating frame close to the material transfer plate, so that one side of the rotating frame with a plurality of flexible clamps is parallel to the material transfer plate, and under the cooperation of the positioner and the movable insertion of the positioning groove, the plurality of flexible clamps can respectively and correspondingly grasp a plurality of tiny parts; S3, the movable end of the manipulator continues to drive the rotating frame to move above the detection platform, and detects the positions of several tiny parts to be embedded and injected through several detection parts; S4, the robot transfers the several tiny parts after the inspection to the injection molding machine for integral injection molding with the workpiece, and grabs the processed workpiece through the first clamp and the second clamp on the rotating frame; S5. After the one-piece injection molded workpiece is coded by the laser marking machine, the workpiece is transferred to the conveyor belt by the robot. During the transmission process of the conveyor belt, the air cooler can complete the cooling process of the workpiece at the same time.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The flexible clamping claw device and operation method for pre-embedding of tiny parts by injection molding of the present invention can better adapt to parts of different sizes and shapes through the flexible clamping claw, and has higher compatibility and longer service life. At the same time, the design of the flexible clamping claw reduces the risk of parts being pinched, and due to the characteristics of the material itself, they are not easily affected by magnetism, so that the embedded parts can be placed in the mold more stably. In addition, when the flexible clamping claw is used in conjunction with a manipulator, a large number of tiny parts can be pre-embedded in place at one time, which saves the overall work cycle time and greatly improves the flexibility and efficiency of production.

[0016] (2) The locking arc surface can make the flexible clamp close to the outer wall of the tiny parts, ensuring the stability of the flexible clamp when grasping the tiny parts. At the same time, the buffer slope can provide a buffering effect for the flexible clamp when grasping the tiny parts, and further effectively adapt to the pre-embedded injection molding process for parts of different sizes.

[0017] (3) The movable end of the manipulator is connected through a rotating frame, and the flexible gripper and the grasping member are installed on the opposite sides of the rotating frame respectively. This integrated design saves the space occupied by the components to a great extent, and at the same time can effectively improve the overall work efficiency under the operation mode of a single manipulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a stereogram of the present application; Figure 2 It is a schematic diagram of the installation structure of the feeding mechanism; Figure 3 It is an exploded view between the rotating rack and the material transfer plate; Figure 4 It is a structural schematic diagram of the flexible gripper.

[0019] In the figure, 1, tooling plate; 10, conveyor belt; 11, air cooler; 110, cooling chamber; 2. Feeding mechanism; 20. Material transfer area; 200. Material transfer plate; 201. Mounting platform; 202. Fixed seat; 203. Lead screw; 204. Movable block; 205. Guide hole; 206. Guide column; 207. Positioning groove; 208. Positioning boss; 21. Material inspection area; 210. Fixed bracket; 211. Detection platform; 212. Detection element; 22. Position sensor; 23. Laser marking machine; 24. Scanner; 3. Robotic arm; 4. Rotating frame; 40. Flexible clamping jaw; 400. Clamping block; 401. Locking arc surface; 402. Buffering slope; 41. Clamping piece; 410. Clamping cylinder; 411. First clamping jaw; 412. Second clamping jaw; 413. Clamping block; 42. Mounting plate; 43. Assembly block; 44. Fixed block; 440. Positioner. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figures 1 to 4 As shown, the present embodiment is a flexible clamping claw 40 device for pre-embedded injection molding of micro parts, comprising: a tooling plate 1; a feeding mechanism 2, which is arranged on the tooling plate 1, and the feeding mechanism 2 is provided with a material transfer area 20 and a material inspection area 21, and a material transfer plate 200 is movably arranged in the material transfer area 20, and the material transfer plate 200 is used to arrange a plurality of micro parts in an interval and symmetrical manner, and push the material transfer plate 200 to the material inspection area 21 through the feeding mechanism 2; the material inspection area 21 is used to detect the positions of a plurality of micro parts to be pre-embedded injection molding; a manipulator 3, which is arranged on the tooling plate 1 and is located on one side of the feeding mechanism 2, and the movable end of the manipulator 3 is connected to a rotating frame 4, and one side of the rotating frame 4 is connected to a plurality of flexible clamping claws 40, and the plurality of flexible clamping claws 40 Several tiny parts on the material transfer plate 200 are arranged one by one; at least two clamping members 41 are installed on the other side of the rotating frame 4, and the clamping members 41 are used to grab the workpiece after processing in the injection molding machine and transfer it to the outside of the tooling plate 1; when the material transfer plate 200 drives several tiny parts to approach the inspection area 21, the movable end of the manipulator 3 is used to drive the rotating frame 4 to move against the material transfer plate 200, so that several flexible claws 40 grab several tiny parts one by one; when several tiny parts on the rotating frame 4 have been inspected in the inspection area, the manipulator 3 can synchronously transfer the tiny parts in several flexible claws 40 to the injection molding machine for pre-embedded injection molding, and take out the workpiece through the clamping member 41 after the injection molding is completed.

[0022] This solution mainly realizes that the flexible clamp 40 embeds a large number of embedded parts (i.e., small parts) in place at one time through the injection molding machine and the workpiece. Specifically, Figures 1 to 4As shown in FIG. 1 , when a worker distributes a plurality of small parts on the material transfer plate 200 at intervals, the feeding mechanism 2 can drive the material transfer plate 200 to move from the material transfer plate 200 to the material transfer plate 200. Figure 2 The rightmost end of the middle material transfer area 20 is transferred to Figure 2 The current position shown (i.e., close to the material inspection area 21) is so that the manipulator 3 can drive the rotating frame 4 to move quickly and smoothly above the material transfer plate 200. Driven by the active end of the manipulator 3 (a six-axis manipulator 3 is used in this scheme), the several flexible clamps 40 on the rotating frame 4 are perpendicular to the material transfer plate 200 and are placed one by one with the several tiny parts on the material transfer plate 200. Therefore, as the rotating frame 4 moves closer to the material transfer plate 200, a large number of tiny parts can be grabbed at one time by the flexible clamps 40, which saves the overall working cycle time and can also utilize the characteristic that the flexible clamps 40 are not easily affected by magnetic interference, effectively ensuring that the embedded parts can be more stably placed in the injection molding machine and injection molded as a whole with the workpiece. After the workpiece is injection molded, the manipulator 3 can drive the rotating frame 4 to move closer to the injection molding machine again. At this time, the clamping member 41 on the other side of the rotating frame 4 can be used to unload the workpiece. The device integrates loading and unloading on the rotating frame 4, saving space occupied by the overall components and improving production flexibility and efficiency.

[0023] Each flexible clamping jaw 40 is provided with a plurality of clamping blocks 400 distributed in a ring-shaped manner. Each clamping block 400 is provided with a locking arc surface 401 and a buffer slope 402. The locking arc surface 401 is arranged parallel to the axial direction of the flexible clamping jaw 40 and close to the clamping end of the flexible clamping jaw 40; the buffer slope 402 is arranged in the flexible clamping jaw 40, one end of the buffer slope 402 is connected to the locking arc surface 401, and the other end is close to the axial center line of the flexible clamping jaw 40.

[0024] like Figure 3 to Figure 4As shown, in this embodiment, three clamping blocks 400 are distributed on the flexible clamping claw 40, and the three clamping blocks 400 are arranged in a ring-shaped interval, and a locking arc surface 401 and a buffer slope 402 are formed on each clamping block 400. Specifically, when the rotating frame 4 drives the flexible clamping claw 40 to approach the material transfer plate 200, the locking arc surface 401 can be effectively attached to the outer wall of the tiny part to ensure the stability of the flexible clamping claw 40 when grasping the tiny part. It is worth noting that during the grasping process, the rotating frame 4 needs to maintain an absolute constant value with the material transfer plate 200 to ensure that each flexible clamping claw 40 They can all stably grasp the corresponding tiny parts, and when pre-embedded injection molding is performed on parts of different sizes, in the process of the rotating frame 4 gradually approaching the material transfer plate 200, the buffer slope 402 can be used to buffer the tiny parts grasped by the flexible clamping claw 40. In other words, the buffer slope 402 can adapt to parts of different sizes and shapes, and at the same time, it also provides the clamping block 400 with a buffer space when grasping tiny parts, effectively avoiding damage to parts caused by rigid grasping between the clamping block 400 and the tiny parts, thereby meeting the pre-embedded injection molding process for parts of different sizes and improving production flexibility.

[0025] The rotating frame 4 is provided with a mounting plate 42 , and a plurality of assembly blocks 43 are detachably connected to the mounting plate 42 . The plurality of assembly blocks 43 are evenly distributed and perpendicular to the mounting plate 42 , so that a plurality of flexible clamps 40 can be mounted on the assembly blocks 43 in a one-to-one correspondence.

[0026] like Figure 3 As shown, when the manipulator 3 drives the rotating frame 4 to approach the material transfer plate 200, the mounting plate 42 and the material transfer plate 200 are placed in parallel, thereby ensuring that the multiple flexible clamps 40 correspondingly grasp the multiple tiny parts. It should be noted that the multiple flexible clamps 40 in this embodiment are integrated on the mounting plate 42 through the assembly block 43. On the one hand, the mounting plate 42 can realize the one-time pre-embedded injection molding of multiple tiny parts with the rotation of the rotating frame 4, and on the other hand, it provides convenience for the installation and disassembly of multiple flexible clamps 40. That is to say, when the flexible clamps 40 are worn or damaged, the corresponding flexible clamps 40 can be quickly removed and replaced from the assembly block 43. Preferably, the flexible clamps 40 and the assembly block 43 in this solution can be installed and fixed by interference fit.

[0027] A fixing block 44 is symmetrically arranged on the mounting plate 42, and a positioner 440 is connected to the fixing block 44. A positioning groove 207 and a positioning boss 208 are symmetrically opened on the material transfer plate 200. The positioner 440 is movably inserted in the positioning groove 207, so that a plurality of flexible clamps 40 can grasp a plurality of tiny parts placed on the positioning boss 208 one by one.

[0028] Further reference Figure 3 Since the rotating frame 4 needs to maintain an absolute constant value with the material transfer plate 200, a positioner 440 is provided in the fixed block 44 on the mounting plate 42. When the rotating frame 4 drives the mounting plate 42 and the material transfer plate 200 to be placed in a parallel posture, as the mounting plate 42 and the material transfer plate 200 approach each other, the positioner 440 can be movably inserted in the positioning groove 207. For this reason, this structure provides a one-to-one correspondence between the flexible clamping claw 40 and the positioning boss 208 to ensure stable clamping of tiny parts, ensuring that the flexible clamping claw 40 has enough space and distance to cooperate with the above-mentioned locking arc surface 401 and the buffer slope 402 to achieve compatibility with multiple parts.

[0029] The material transfer area 20 includes: an installation platform 201, which is arranged on the tooling plate 1, and a fixed seat 202 is installed at both ends of the installation platform 201; a screw 203 and a movable block 204, one end of the screw 203 is connected to the drive motor, and the other end is movably connected in the fixed seat 202; the movable block 204 is movably sleeved on the screw 203, and the movable block 204 is connected to the material transfer plate 200, so that when the drive motor is turned on, it can drive the material transfer plate 200 to reciprocate in the length direction of the screw 203; a guide column 206, which is located on both sides of the screw 203 and is connected to the fixed seat 202, and a guide hole 205 is opened in the movable block 204, and the guide hole 205 is movably sleeved on the guide column 206.

[0030] like Figure 1 to Figure 2 As shown, in this embodiment, workers can stand Figure 2 The rightmost end of the mounting platform 201 is used to load several tiny parts. After the loading operation is completed, when the driving motor (not shown in the figure) drives the lead screw 203 to rotate, the movable block 204 and the material transfer plate 200 can be driven to move back and forth in a straight line along the length direction of the lead screw 203. The overall structure is simple, and the accuracy of the moving position of the material transfer plate 200 is effectively guaranteed. In this process, the guide hole 205 in the movable block 204 is movably inserted in the guide column 206. Since the guide hole 205 and the guide column 206 are distributed on both sides of the movable block 204, they can not only guide the reciprocating movement of the movable block 204, but also effectively prevent the movable block 204 from tilting during the movement process, which causes the material transfer plate 200 to be stuck when moving.

[0031] Preferably, in this embodiment, a control switch may be provided at the rightmost end of the mounting platform 201, and the control switch may control the opening and closing of the material shifting plate 200 in real time during its movement, thereby ensuring the stability of the entire material loading process.

[0032] The inspection area 21 includes: a fixed bracket 210 arranged in a triangular shape, connected to the side wall of the mounting bracket close to the manipulator 3; a detection platform 211, arranged on the fixed bracket 210, and a plurality of detection members 212 are spaced and symmetrically distributed on the detection platform 211, and the positions of the plurality of detection members 212 are arranged corresponding to the positions of a plurality of tiny parts pre-embedded and injection-molded on the workpiece.

[0033] Continue to refer Figure 1 and Figure 2 The fixed bracket 210 is arranged in a triangular shape as a whole. The characteristics of the triangle shape are used to improve the firmness of the overall structure of the inspection area 21. It is worth noting that the several detection pieces 212 on the detection platform 211 correspond to the positions of the tiny parts pre-embedded in the workpiece for injection molding. Therefore, when the several flexible clamps 40 grab the corresponding tiny parts one by one, the manipulator 3 needs to drive the rotating frame 4 to move to the top of the detection platform 211 again. Similarly, when the mounting frame and the detection platform 211 are in a parallel placement posture, the several detection pieces 212 can detect the accuracy of the positions of the tiny parts in the corresponding flexible clamps 40 one by one. If the position of the tiny parts is offset or the flexible clamps 40 have an empty clamping phenomenon, it is necessary to rework by manual or secondary clamping operations to ensure that the tiny parts are in the required position for pre-embedded injection molding, thereby ensuring that the quality of the workpiece after one-piece injection molding can meet the usage requirements required by customers.

[0034] Each clamping member 41 includes a clamping cylinder 410 and a first clamping jaw 411 and a second clamping jaw 412 arranged at the driving end of the clamping cylinder 410. The opposite ends of the first clamping jaw 411 and the second clamping jaw 412 are detachably connected with a clamping block 413, and the clamping block 413 can grasp the workpiece in the injection molding machine when the first clamping jaw 411 and the second clamping jaw 412 approach each other.

[0035] like Figure 3As shown, each clamping member 41 in this embodiment is composed of a clamping cylinder 410, a first clamping jaw 411 and a second clamping jaw 412, wherein there is a certain gap between the clamping cylinder 410 and the mounting plate 42, which effectively avoids the jamming phenomenon between the two when implementing different functions, and ensures the smoothness and stability of the entire operation process. In addition, in this embodiment, two clamping cylinders 410 are respectively installed on both sides of the rotating frame 4, so that multiple workpieces can be quickly unloaded, and the cooperation of the two clamping cylinders 410 can be used to ensure the stability of the first clamping jaw 411 and the second clamping jaw 412 when grasping the workpiece. Preferably, a clamping block 413 is detachably connected to the clamping ends of the first clamping jaw 411 and the second clamping jaw 412. The clamping block 413 replaces the clamping jaws to contact the workpiece after injection molding, effectively preventing the workpiece from being scratched due to excessive contact between the clamping jaws and the workpiece. In the event that the clamping block 413 is damaged, the clamping block 413 can be quickly replaced by removing screws and other connecting parts, thereby providing a guarantee for the stability of the workpiece during unloading.

[0036] Preferably, if Figure 1 As shown, the feeding mechanism 2 in this embodiment also includes: a position sensor 22 arranged on the mounting platform 201, the position sensor 22 is used to transmit a signal that the material moving plate 200 is at the end position of the lead screw 203 close to the material checking area 21, so that the material moving plate 200 reaches Figure 2 When in the leftmost position, the robot 3 can immediately drive the rotating frame 4 to grab tiny parts through the flexible clamping claws 40, effectively saving the overall work cycle time; and after the one-piece injection-molded workpiece is grabbed by the above-mentioned clamping cylinder 410, it can be quickly moved to the laser marking machine 23 on the tooling plate 1 to complete the automatic coding and differentiation operation of the workpiece, and after the scanner 24 scans the code and detects that it is correct, the subsequent unloading operation can be implemented. This structure does not require human intervention, which greatly improves production efficiency.

[0037] Preferably, if Figure 1 As shown, a conveyor belt 10 and a plurality of air coolers 11 are also provided on the tooling plate 1 in this embodiment, wherein the air coolers 11 are all provided on the conveyor belt 10, and together with the conveyor belt 10 form a cooling chamber 110. When the workpiece scanned correctly by the scanner 24 is sent to the conveyor belt 10 by the manipulator 3, the workpiece can be cooled by the air cooler 11 during the process of the conveyor belt 10 transferring the workpiece, so as to avoid deformation of the workpiece.

[0038] Based on the above structure, this solution also provides an operation method, including the following steps: S1, placing a number of tiny parts that need to be pre-embedded for injection molding on the material transfer plate 200, and moving the material transfer plate 200 closer to the manipulator 3 when the movable block 204 makes a linear motion on the lead screw 203; S2, the movable end of the manipulator 3 moves the rotating frame 4 close to the material transfer plate 200, so that one side of the rotating frame 4 with a plurality of flexible clamps 40 is parallel to the material transfer plate 200, and under the cooperation of the locator 440 and the locating groove 207, the plurality of flexible clamps 40 can respectively and correspondingly grasp a plurality of tiny parts; S3, the movable end of the manipulator 3 continues to drive the rotating frame 4 to move to the top of the detection platform 211, and detects the positions of several tiny parts to be embedded and injected through several detection parts 212; S4, the robot 3 transfers the several small parts after the inspection to the injection molding machine for integral injection molding with the workpiece, and grabs the processed workpiece through the first clamping jaw 411 and the second clamping jaw 412 on the rotating frame 4; S5. After the integrally-injected workpiece is coded by the laser marking machine 23, the workpiece is transferred to the conveyor belt 10 by the robot 3. During the transmission process of the conveyor belt 10, the cooling fan 11 can simultaneously complete the cooling process for the workpiece.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A flexible clamping device for injection molding of small parts, characterized in that: include: Tooling board; A feeding mechanism is arranged on the tooling plate, the feeding mechanism is provided with a material transfer area and a material inspection area, a material transfer plate is movably arranged in the material transfer area, the material transfer plate is used to arrange a plurality of tiny parts in an interval and symmetrical manner, and the material transfer plate is pushed to the material inspection area by the feeding mechanism; the material inspection area is used to detect the positions of a plurality of tiny parts to be pre-embedded and injection molded; A manipulator is arranged on the tooling plate and located on one side of the feeding mechanism, the movable end of the manipulator is connected to a rotating frame, one side of the rotating frame is connected to a plurality of flexible clamps, and the plurality of flexible clamps are arranged one-to-one with the plurality of tiny parts on the material transfer plate; at least two clamping members are installed on the other side of the rotating frame, and the clamping members are used to grab the workpiece processed in the injection molding machine and transfer it to the outside of the tooling plate; When the material transfer plate drives the plurality of the micro parts to approach the material inspection area, the movable end of the manipulator is used to drive the rotating frame to move and press against the material transfer plate, so that the plurality of the flexible clamps grasp the plurality of the micro parts one by one; When several tiny parts on the rotating frame have been inspected by the inspection area, the robot can synchronously transfer several tiny parts in the flexible clamps to the injection molding machine for pre-embedded injection molding, and take out the workpieces through the clamping member after the injection molding is completed.

2. A flexible clamping device for pre-embedding of micro parts by injection molding according to claim 1, characterized in that: Each of the flexible clamping jaws is provided with a plurality of clamping blocks distributed in a ring-like manner, and each of the clamping blocks is provided with a locking arc surface and a buffer slope. The locking arc surface is arranged parallel to the axial direction of the flexible clamping jaw and is close to the clamping end of the flexible clamping jaw; the buffer slope is arranged in the flexible clamping jaw, one end of the buffer slope is connected to the locking arc surface, and the other end is close to the axial center line of the flexible clamping jaw.

3. A flexible clamping device for injection molding pre-embedded micro parts according to claim 1, characterized in that: The material transfer area includes: An installation platform is arranged on the tooling plate, and both ends of the installation platform are equipped with fixing seats; A lead screw and a movable block, one end of the lead screw is connected to a driving motor, and the other end is movably connected to the fixed seat; the movable block is movably sleeved on the lead screw, and the movable block is connected to the material moving plate, so that when the driving motor is turned on, it can drive the material moving plate to reciprocate in the length direction of the lead screw; The guide posts are located on both sides of the lead screw and connected to the fixing seat. A guide hole is provided in the movable block, and the guide hole is movably sleeved on the guide posts.

4. A flexible clamping device for pre-embedding of micro parts by injection molding according to claim 2, characterized in that: The rotating frame is provided with a mounting plate, on which a plurality of assembly blocks are detachably connected, and the plurality of assembly blocks are evenly distributed and perpendicular to the mounting plate, so that a plurality of the flexible clamps can be mounted on the assembly blocks in a one-to-one correspondence.

5. A flexible clamping device for pre-embedding of micro parts by injection molding according to claim 4, characterized in that: The mounting plate is also symmetrically provided with fixing blocks, to which a positioner is connected, and the material transfer plate is symmetrically provided with positioning grooves and positioning bosses, and the positioner is movably inserted in the positioning grooves, so that a plurality of the flexible clamps can grasp a plurality of the tiny parts placed on the positioning bosses one by one.

6. A flexible clamping device for pre-embedding of micro parts by injection molding according to claim 3, characterized in that: The inspection area includes: A fixing bracket arranged in a triangular shape, connected to a side wall of the mounting bracket close to the manipulator; The detection platform is arranged on the fixed bracket, and a plurality of detection parts are spaced and symmetrically distributed on the detection platform. The positions of the plurality of detection parts are arranged corresponding to the positions of a plurality of tiny parts pre-embedded and injection-molded on the workpiece.

7. A flexible clamping device for pre-embedding of micro parts by injection molding according to claim 1, characterized in that: Each of the clamping members includes a clamping cylinder and a first clamping jaw and a second clamping jaw arranged at the driving end of the clamping cylinder. The opposite ends of the first clamping jaw and the second clamping jaw are detachably connected with a clamping block, and the clamping block can grasp the workpiece in the injection molding machine when the first clamping jaw and the second clamping jaw approach each other.

8. The flexible clamping device for pre-embedding of micro parts by injection molding according to claim 3 is characterized in that: The feeding mechanism also includes: A position sensor is arranged on the mounting platform, and the position sensor is used to transmit a signal that the material moving plate is at a position of the lead screw close to the end of the material checking area; A laser marking machine and a scanner are arranged on the tooling plate. The laser marking machine is used to mark and distinguish the workpieces after the injection molding is completed, and the scanner is used to scan and detect the codes.

9. A flexible clamping device for pre-embedding of micro parts by injection molding according to claim 6, characterized in that: A conveyor belt and a plurality of air coolers are also provided on the tooling plate. The air coolers are provided on the conveyor belt and together with the conveyor belt form a cooling chamber, so that when the conveyor belt transfers the workpiece after injection molding, the workpiece can be cooled by the air coolers.

10. A method of operation, comprising the following steps: S1. Place several tiny parts that need to be pre-embedded for injection molding on the material transfer plate, and move the material transfer plate closer to the manipulator when the movable block makes a linear motion on the lead screw; S2. The movable end of the manipulator moves the rotating frame close to the material transfer plate, so that one side of the rotating frame with a plurality of flexible clamps is parallel to the material transfer plate, and under the cooperation of the positioner and the movable insertion of the positioning groove, the plurality of flexible clamps can respectively and correspondingly grasp a plurality of tiny parts; S3, the movable end of the manipulator continues to drive the rotating frame to move above the detection platform, and detects the positions of several tiny parts to be embedded and injected through several detection parts; S4, the robot transfers the several tiny parts after the inspection to the injection molding machine for integral injection molding with the workpiece, and grabs the processed workpiece through the first clamp and the second clamp on the rotating frame; S5. After the one-piece injection molded workpiece is coded by the laser marking machine, the workpiece is transferred to the conveyor belt by the robot. During the transmission process of the conveyor belt, the air cooler can complete the cooling process of the workpiece at the same time.

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