Grabbing device for demoulding of 90-degree elbow electric smelting pipe fitting

Abstract

The utility model discloses a grabbing device for demolding of a 90-degree elbow electric melting pipe fitting, which is used for grabbing the 90-degree elbow electric melting pipe fitting and a combined mold core in the 90-degree elbow electric melting pipe fitting and comprises a grabbing robot, a robot grabbing connecting plate, an integral frame and two sets of grabbing mechanisms, the end of the grabbing robot is connected with the upper surface of the overall frame through a robot grabbing connecting plate, the two sets of grabbing mechanisms are arranged on the lower surface of the overall frame and used for grabbing the two ends of a combined mold core correspondingly, and therefore the 90-degree elbow electric smelting pipe fitting and the combined mold core in the 90-degree elbow electric smelting pipe fitting are taken and placed at the same time. The device has the functions of automatically grabbing and moving the combined mold core and the 90-degree elbow electric melting pipe fitting and safely limiting and preventing falling, and is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical grabbing devices, and in particular relates to a grabbing device for demoulding a 90-degree elbow electric fusion pipe fitting. Background Art

[0002] During the production process of 90-degree elbow electric fusion pipe fittings, the combined mold core needs to be placed in the injection molding machine mold for production injection molding. After the injection molding is completed, the combined mold core and the molded 90-degree elbow electric fusion pipe fitting are removed from the injection molding machine mold together, and then placed in the corresponding demoulding device to separate the left part of the combined mold core from the right part of the combined mold core so that the 90-degree elbow electric fusion pipe fitting is detached from the combined mold core. Manually removing and placing the combined mold core and the combined mold core together with the 90-degree elbow electric fusion pipe fitting is time-consuming, labor-intensive, and cannot be seamlessly integrated with the movement of the injection molding machine, which will also affect the production efficiency of the injection molding machine. On the other hand, the combined mold core together with the 90-degree elbow electric fusion pipe fitting is heavy, and manual removal and placement is prone to safety accidents, causing damage to personnel and equipment. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a gripping device for demoulding a 90-degree elbow electric fusion pipe fitting.

[0004] The specific technical solutions are as follows:

[0005] A grabbing device for demoulding a 90-degree elbow electric fusion pipe fitting is used to grab the 90-degree elbow electric fusion pipe fitting and the combined mold core inside it. The grabbing device includes a grabbing robot, a robot grabbing connecting plate, an overall frame and two sets of grabbing mechanisms. The end of the grabbing robot is connected to the upper surface of the overall frame through the robot grabbing connecting plate. The two sets of grabbing mechanisms are respectively arranged on the lower surface of the overall frame, and are respectively used to grab the two ends of the combined mold core, thereby realizing the simultaneous picking and placing of the 90-degree elbow electric fusion pipe fitting and the combined mold core inside it.

[0006] Furthermore, the grasping mechanism includes a first grasping jaw cylinder, a first movable jaw structure, a second movable jaw structure and a first slide rail. The first grasping jaw cylinder and the first slide rail are respectively fixed on the overall frame, and the first movable jaw structure and the second movable jaw structure are respectively mounted on the first slide rail. The front movable finger of the first grasping jaw cylinder is connected to the first movable jaw structure, and the rear movable finger of the first grasping jaw cylinder is connected to the second movable jaw structure, thereby realizing the first movable jaw structure and the second movable jaw structure to move toward each other along the first slide rail.

[0007] Furthermore, the first movable clamping jaw structure includes a first clamping jaw connecting frame, a first clamping jaw and a first slider. The upper end of the first clamping jaw connecting frame is connected to the front movable finger of the first grabbing clamping jaw cylinder, and the lower end is connected to the first clamping jaw. The first slider is connected to the first clamping jaw and is mounted on the first slide rail; the second movable clamping jaw structure includes a second clamping jaw connecting frame, a second clamping jaw and a second slider. The upper end of the second clamping jaw connecting frame is connected to the rear movable finger of the first grabbing clamping jaw cylinder, and the lower end is connected to the second clamping jaw. The second slider is connected to the second clamping jaw and is mounted on the first slide rail.

[0008] Furthermore, the combined mold core includes a first mold core and a second mold core, a positioning hole is provided at one end of the first mold core, and a first grabbing block is provided at the other end, a mold core positioning pin is provided at one end of the second mold core, and a second grabbing block is provided at the other end, and the mold core positioning pin is inserted into the positioning hole to realize the connection between the first mold core and the second mold core, grabbing holes are provided on the first grabbing block and the second grabbing block, and clamping jaw positioning pins are provided on the inner sides of the first clamping jaw and the second clamping jaw, and when the first clamping jaw and the second clamping jaw grab the combined mold core, the clamping jaw positioning pin is inserted into the grabbing hole to realize stable grabbing.

[0009] Furthermore, the gripping mechanism also includes a clamping jaw limiting structure, which includes a safety limiting cylinder, a limiting connecting frame, a limiting clamp, a second slide rail and a limiting slider. The safety limiting cylinder and the second slide rail are respectively fixed on the overall frame. The movable block of the safety limiting cylinder is connected to the limiting connecting frame, and the limiting connecting frame is connected to the limiting clamp. The limiting clamp is a U-shaped plate with an opening facing the first clamping jaw and the second clamping jaw to limit the first clamping jaw and the second clamping jaw. The limiting slider is mounted on the second slide rail and is fixedly connected to the limiting clamp.

[0010] The beneficial effects of the present invention are:

[0011] The combination of the positioning pin and the positioning hole of the clamping jaw of the utility model can ensure that the clamping jaw is accurately positioned and firmly grasped when grasping. The limit clamp can perform a secondary limit on the retracted clamping jaw to prevent loosening, thereby improving the stability and reliability of grasping. With the combination of the first slide rail, the first slider and the second slider, the smooth telescopic movement of the clamping jaw can be ensured, thereby improving the stability of the clamping jaw grasping. With the combination of the second slide rail and the limit slider, the smooth movement of the limit clamp can be ensured, thereby improving the stability of the limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the grabbing mechanism of the present utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the combined mold core with a pipe fitting of the utility model;

[0015] Figure 4 This is a disassembly diagram of the combined mold core with pipe fitting structure for this practical application.

[0016] Figure: 1. 90-degree elbow electric fusion pipe fitting; 2. Combined mold core; 21. First mold core; 211. Positioning hole; 212. First grabbing block; 22. Second mold core; 221. Mold core positioning pin; 222. Second grabbing block; 23. Grasping hole; 3. Grasping robot; 4. Robot grabbing connecting plate; 5. Overall frame; 6. Grasping mechanism; 61. First grabbing jaw cylinder; 62. First movable jaw structure; 621 , first clamping jaw connecting frame; 622, first clamping jaw; 623, first slider; 63, second movable clamping jaw structure; 631, second clamping jaw connecting frame; 632, second clamping jaw; 633, second slider; 64, first slide rail; 65, clamping jaw positioning pin; 66, clamping jaw limiting structure; 661, safety limiting cylinder; 662, limiting connecting frame; 663, limiting clamp; 664, second slide rail; 665, limiting slider. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0018] like Figure 1 As shown, a 90-degree elbow electric fusion pipe demoulding grasping device is used to grasp the 90-degree elbow electric fusion pipe 1 and the combined mold core 2 inside it. The grasping device includes a grasping robot 3, a robot grasping connecting plate 4, an overall frame 5 and two sets of grasping mechanisms 6. The end of the grasping robot 3 is connected to the upper surface of the overall frame 5 through the robot grasping connecting plate 4. The grasping robot 3 is fixed to the ground through 10 sets of expansion screws and bolts. The two sets of grasping mechanisms 6 are respectively provided on the lower surface of the overall frame 5, and are respectively used to grasp the two ends of the combined mold core 2. Figure 2As shown, each group of gripping mechanisms 6 includes a first gripping claw cylinder 61, a first movable gripping claw structure 62, a second movable gripping claw structure 63, a first slide rail 64 and a group of gripping claw limiting structures 66. The first gripping claw cylinder 61 and the first slide rail 64 are respectively fixed to the overall frame 5. The first gripping claw cylinder 61 is located above the first slide rail 64. The first movable gripping claw structure 62 includes a first gripping claw connecting frame 621, a first gripping claw 622 and a first slide block 623. The upper end of the first gripping claw connecting frame 621 is connected to the first gripping claw. The front movable finger of the claw cylinder 61 is connected, the lower end of the first clamping claw connecting frame 621 is connected to the upper end of the first clamping claw 622, the lower end of the first clamping claw 622 extends vertically downward, the first slider 623 is connected to the first clamping claw 622 and is sleeved on the first slide rail 64, the second movable clamping claw structure 63 includes a second clamping claw connecting frame 631, a second clamping claw 632 and a second slider 633, the upper end of the second clamping claw connecting frame 631 is connected to the rear movable finger of the first grabbing clamping claw cylinder 61, the second clamping claw connecting frame 631 The lower end of the second clamping jaw 632 is connected to the lower end of the second clamping jaw 632, and the lower end of the second clamping jaw 632 extends vertically downward. The second slider 633 is connected to the second clamping jaw 632 and is sleeved on the first slide rail 64. The first slide rail 64 passes through the first clamping jaw connecting frame 621 and the second clamping jaw connecting frame 631; Each set of clamping jaw limiting structures 66 includes a safety limiting cylinder 661, a limiting connecting frame 662, a limiting clamp 663, a second slide rail 664 and a limiting slider 665. The safety limiting cylinder 661 and the second slide rail 664 are respectively fixed to the overall On the frame 5, the safety limit cylinder 661 is located above the second slide rail 664, the movable block of the safety limit cylinder 661 is connected to the limit connecting frame 662, the limit connecting frame 662 is connected to the limit clamp 663, the limit clamp 663 is a U-shaped plate with an opening facing the first clamping jaw 622 and the second clamping jaw 632, which limits the first clamping jaw 622 and the second clamping jaw 632, the limit slider 665 is sleeved on the second slide rail 664, and is fixedly connected to the limit clamp 663, and the second slide rail 664 passes through the limit connecting frame 662; Figure 3 and Figure 4 As shown, the combined mold core 2 includes a first mold core 21 and a second mold core 22. A positioning hole 211 is provided at one end of the first mold core 21, and a first grabbing block 212 is provided at the other end. A mold core positioning pin 221 is provided at one end of the second mold core 22, and a second grabbing block 222 is provided at the other end. The mold core positioning pin 221 is inserted into the positioning hole 211 to realize the combined connection of the first mold core 21 and the second mold core 22. A grabbing hole 23 is provided on the first grabbing block 212 and the second grabbing block 222. The inner sides of the first clamping jaw 622 and the second clamping jaw 632 are provided with a clamping jaw positioning pin 65. The clamping jaw positioning pin 65 is inserted into the grabbing hole 23 to realize stable grabbing.

[0019] The specific implementation process of the grabbing device in the production process is as follows: when the 90-degree elbow electric fusion pipe fitting 1 completes injection molding production in the injection molding machine mold, the injection molding machine automatically opens the mold and sends the mold opening signal to the grabbing robot 3, and then the grabbing robot 3 drives the overall frame 5 together with the grabbing mechanism 6 to enter the fixed position in the injection molding machine, and the first grabbing claw cylinder 61 of the two groups of grabbing mechanisms 6 shrinks, and under the guidance of the first slide rail 64, the first slider 623 and the second slider 633, the first clamping claw 622 and the second clamping claw 632 move inward toward each other, and the clamping claw locating pin 65 is inserted into the locating hole 211 to realize the grabbing of the combined mold core 2 and the 90-degree elbow electric fusion pipe fitting 1, and the two groups of safety limit cylinders 661 extend out, and under the guidance of the second slide rail 664 and the limit slider 665, the limit clamp 663 moves forward to move the first A clamp 622 and a second clamp 632 are limited to prevent the first clamp 622 and the second clamp 632 from loosening during the grabbing and moving process. After completing the grabbing and limiting, the grabbing robot 3 drives the overall frame 5 together with the grabbing mechanism 6 to grab the combined mold core 2 and the 90-degree elbow electric fusion pipe fitting 1 from the inside of the injection molding machine and place them on the demoulding device at the rear end. The safety limit cylinder 661 drives the limit clamp 663 to return to its original position, and the first grabbing clamp cylinder 61 drives the first moving clamp structure 62 and the second moving clamp structure 63 to return to their original position, so that the combined mold core 2 is released from the grabbing mechanism 6, and then the combined mold core 2 is separated from the 90-degree elbow electric fusion pipe fitting 1 through the demoulding device, and finally the separated combined mold core 2 is put back into the injection molding machine mold through the grabbing device to start the injection molding production of the next mold of 90-degree elbow electric fusion pipe fitting 1.

Claims

1. A 90-degree elbow electrofusion pipe demoulding grabbing device, characterized in that: The invention relates to a device for grasping a 90-degree elbow electric fusion pipe fitting (1) and a combined mold core (2) therein. The grasping device comprises a grasping robot (3), a robot grasping connecting plate (4), an overall frame (5), and two sets of grasping mechanisms (6). The ends of the grasping robot (3) are connected to the upper surface of the overall frame (5) via the robot grasping connecting plate (4). The two sets of grasping mechanisms (6) are respectively arranged on the lower surface of the overall frame (5) and are respectively used to grasp the two ends of the combined mold core (2), thereby realizing simultaneous picking and placing of the 90-degree elbow electric fusion pipe fitting (1) and the combined mold core (2) therein.

2. A 90-degree elbow electrofusion pipe demoulding grabbing device according to claim 1, characterized in that: The gripping mechanism (6) comprises a first gripping jaw cylinder (61), a first movable jaw structure (62), a second movable jaw structure (63) and a first slide rail (64). The first gripping jaw cylinder (61) and the first slide rail (64) are respectively fixed on the overall frame (5). The first movable jaw structure (62) and the second movable jaw structure (63) are respectively sleeved on the first slide rail (64). The front movable finger of the first gripping jaw cylinder (61) is connected to the first movable jaw structure (62), and the rear movable finger of the first gripping jaw cylinder (61) is connected to the second movable jaw structure (63), thereby realizing the first movable jaw structure (62) and the second movable jaw structure (63) moving toward each other along the first slide rail (64).

3. A 90-degree elbow electrofusion pipe demoulding grabbing device as claimed in claim 2, characterized in that: The first movable clamping jaw structure (62) comprises a first clamping jaw connecting frame (621), a first clamping jaw (622) and a first slider (623), wherein the upper end of the first clamping jaw connecting frame (621) is connected to the front movable finger of the first grabbing clamping jaw cylinder (61), and the lower end is connected to the first clamping jaw (622), and the first slider (623) is connected to the first clamping jaw (622) and is sleeved on the first slide rail (64); the second movable clamping jaw structure (63) comprises a second clamping jaw connecting frame (631), a second clamping jaw (632) and a second slider (633), wherein the upper end of the second clamping jaw connecting frame (631) is connected to the rear movable finger of the first grabbing clamping jaw cylinder (61), and the lower end is connected to the second clamping jaw (632), and the second slider (633) is connected to the second clamping jaw (632) and is sleeved on the first slide rail (64).

4. A 90-degree elbow electrofusion pipe demoulding grabbing device as claimed in claim 3, characterized in that: The combined mold core (2) comprises a first mold core (21) and a second mold core (22). A positioning hole (211) is provided at one end of the first mold core (21) and a first grab block (212) is provided at the other end. A mold core positioning pin (221) is provided at one end of the second mold core (22) and a second grab block (222) is provided at the other end. The mold core positioning pin (221) is inserted into the positioning hole (211) to achieve connection between the first mold core (21) and the second mold core (22). The first grab block (212) and the second grab block (222) are both provided with a grab hole (23). The inner sides of the first clamping jaw (622) and the second clamping jaw (632) are both provided with a clamping jaw positioning pin (65). When the first clamping jaw (622) and the second clamping jaw (632) grab the combined mold core (2), the clamping jaw positioning pin (65) is inserted into the grabbing hole (23) to achieve stable grabbing.

5. A 90-degree elbow electrofusion pipe demoulding grabbing device as claimed in claim 3, characterized in that: The gripping mechanism (6) further comprises a clamping jaw limiting structure (66), the clamping jaw limiting structure (66) comprising a safety limiting cylinder (661), a limiting connecting frame (662), a limiting clamp (663), a second slide rail (664) and a limiting slider (665), the safety limiting cylinder (661) and the second slide rail (664) being fixed on the overall frame (5), respectively, the movable block of the safety limiting cylinder (661) being connected to the limiting connecting frame (662), the limiting connecting frame (662) being connected to the limiting clamp (663), the limiting clamp (663) being a U-shaped plate with an opening facing the first clamping jaw (622) and the second clamping jaw (632), for limiting the first clamping jaw (622) and the second clamping jaw (632), the limiting slider (665) being sleeved on the second slide rail (664) and fixedly connected to the limiting clamp (663).

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