Special gripping apparatus device for double-color injection molding part

Abstract

The utility model relates to a special gripping apparatus device for a double-shot molded part, which comprises a mounting frame connected with the working end of a manipulator, a first gripping mechanism and a second gripping mechanism which are arranged at an interval are assembled at the bottom of the mounting frame, and a positioning pin component is assembled at the bottom of the mounting frame. The positioning pin assembly corresponds to the first positioning ring assembly arranged on the first injection molding working position, and the positioning pin assembly corresponds to the second positioning ring assembly arranged on the second injection molding working position. By arranging the first grabbing mechanism and the second grabbing mechanism, the second grabbing mechanism can grab the finished workpiece while the first grabbing mechanism grabs the semi-finished workpiece, so that the production takt is compact, the workpiece transfer time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a special gripper device for two-color injection molded parts. Background Art

[0002] EBM industrial fans play an important role in the heat dissipation system of new energy vehicles, ensuring the safety and performance of the vehicles. EBM industrial fans are usually equipped with controllers. As the core control components of the fans, they are responsible for receiving and processing signals from the outside, and controlling parameters such as the rotation speed, wind direction, and switch of the fans according to preset programs, so as to achieve precise and efficient operation. The structure of the controller includes a housing, and an electronic PC control board is installed inside the housing.

[0003] In the related art, the controller housing for EBM industrial fans is usually made by two-color injection molding process. During the injection molding process, the semi-finished workpiece needs to be transferred from the semi-finished injection molding working position to the finished injection molding working position for secondary injection molding. Two gripper devices are respectively equipped at the two injection molding working positions in the two-color injection molding process, which are used for workpiece transfer and transportation, so as to complete the injection molding of two different materials and achieve the appearance effects of different colors and touches.

[0004] However, during the working process of the above two gripper devices, the gripper device at the semi-finished injection molding working position needs to wait for the gripper device at the finished injection molding working position to transfer the finished workpiece first before it can transfer the semi-finished workpiece to the finished injection molding working position. Its production rhythm is discontinuous, and the time consumed for workpiece transfer and transportation is relatively long, resulting in low work efficiency. Summary of the Utility Model

[0005] The applicant of the present utility model aims at the above-mentioned shortcomings in the existing production technology, and provides a special gripper device for two-color injection molded parts. By setting a first grasping mechanism and a second grasping mechanism, the second grasping mechanism can grasp the finished workpiece while the first grasping mechanism grasps the semi-finished workpiece, so as to compact the production rhythm, save the workpiece transfer time, and improve the production efficiency.

[0006] The technical solution adopted by the present utility model is as follows:

[0007] A special gripper device for two-color injection molded parts includes a mounting frame connected to the working end of a manipulator. A first grasping mechanism and a second grasping mechanism arranged at intervals are installed at the bottom of the mounting frame. A positioning pin assembly is installed at the bottom of the mounting frame. The positioning pin assembly corresponds to a first positioning ring assembly arranged at a first injection molding working position, and the positioning pin assembly also corresponds to a second positioning ring assembly arranged at a second injection molding working position;

[0008] When the positioning pin assembly is docked with the first positioning ring assembly, the first grasping mechanism is aligned with the first injection molding working position. At the same time, the second grasping mechanism is aligned with the second injection molding working position. The manipulator drives the first grasping mechanism and the second grasping mechanism to move simultaneously through the mounting frame, so as to remove the workpiece on the first injection molding working position and the workpiece on the second injection molding working position at the same time;

[0009] When the positioning pin assembly is docked with the second positioning ring assembly, the first grasping mechanism is aligned with the second injection molding working position.

[0010] As a further improvement of the above technical solution:

[0011] The structure of the first grasping mechanism is as follows: It includes a first fixed seat, a first cylinder is fixed on the first fixed seat, the output end of the first cylinder is connected to a first movable plate, several first spring plungers are arranged on the first movable plate, the plunger head of a single first spring plunger is connected to a first suction cup, each first suction cup is connected to an external negative pressure source, and several push rods are also arranged on the first movable plate, and a rubber head is arranged at the end of a single push rod.

[0012] Several first pneumatic clamps are also arranged on the first movable plate.

[0013] The rubber head is frustum-shaped.

[0014] The structure of the second grasping mechanism is as follows: It includes a second cylinder fixed to the bottom of the mounting frame, the output end of the second cylinder is connected to a second movable plate, a suction cup assembly is arranged on the second movable plate, and the suction cup assembly sucks the corresponding workpiece by means of negative pressure adsorption.

[0015] The positioning pin assembly includes several positioning pins.

[0016] Several limit steel balls arranged in a circumferential manner are arranged at the end of a single positioning pin.

[0017] The mounting frame is in quick-release fit with the working end of the manipulator through a quick-change disk.

[0018] The first positioning ring assembly includes several first positioning rings.

[0019] The second positioning ring assembly includes several second positioning rings.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The utility model has a compact and reasonable structure and is convenient to operate. By integrating the first grasping mechanism and the second grasping mechanism on the installation frame and setting the positioning pin assembly and the positioning ring assembly, the second grasping mechanism can grasp the finished workpiece while the first grasping mechanism grasps the semi-finished workpiece, thereby shortening the production cycle, saving the workpiece transfer time and improving the production efficiency.

[0022] The utility model also has the following advantages:

[0023] (1) The utility model has a compact structure. The first grasping mechanism and the second grasping mechanism are integrated on the installation frame, without occupying much production space.

[0024] (2) By arranging the limit steel balls in the utility model, when the positioning pin is inserted into the positioning ring, the gap between the outer circumferential surface of the positioning pin and the inner side wall surface of the positioning ring can be filled, and the positioning accuracy can be improved.

[0025] (3) By arranging the first pneumatic clamp and the second pneumatic clamp in the utility model, the gate on the corresponding injection mold can be removed while grasping the workpiece, further saving the material taking time.

[0026] (4) By arranging the rubber head in the utility model, when the first grasping mechanism places the semi-finished workpiece on the second injection mold, the semi-finished workpiece can be pushed to ensure that the semi-finished workpiece can be stuck on the second injection mold.

[0027] (5) By arranging the spring plunger in the utility model, the corresponding suction cup can move along the axial direction of the spring plunger, so as to buffer when the suction cup contacts the corresponding workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural view of the utility model.

[0029] Figure 2 is Figure 1 the front view of

[0030] Figure 3 is a schematic structural view of the first grasping mechanism in the utility model.

[0031] Figure 4 is an exploded view of the first grasping mechanism in the utility model.

[0032] Figure 5 is a schematic structural view of the second grasping mechanism in the utility model.

[0033] Figure 6 is a schematic view of the utility model in the working state.

[0034] Wherein: 1. The first grasping mechanism; 2. The second grasping mechanism; 3. The mounting frame; 4. The quick-change disk; 5. The positioning pin; 6. The limiting steel ball; 7. The first positioning ring; 8. The second positioning ring;

[0035] 101. The first fixed seat; 102. The first movable plate; 103. The first cylinder; 104. The first pneumatic clamp; 105. The first spring plunger; 106. The first suction cup; 107. The push rod; 108. The rubber head;

[0036] 201. The second fixed seat; 202. The second movable plate; 203. The second cylinder; 204. The second pneumatic clamp; 205. The second spring plunger; 206. The second suction cup. Specific embodiments

[0037] The following combines with the attached drawings to illustrate the specific embodiments of the present utility model.

[0038] The structure and function of the present utility model are as follows:

[0039] As Figures 1-6 shown, a special gripper device for two-color injection molded parts includes a mounting frame 3 connected to the working end of the manipulator. The bottom of the mounting frame 3 is equipped with a first grasping mechanism 1 and a second grasping mechanism 2 arranged at intervals. The bottom of the mounting frame 3 is equipped with a positioning pin assembly, and the positioning pin assembly corresponds to a first positioning ring assembly arranged at the first injection molding working position, and the positioning pin assembly also corresponds to a second positioning ring assembly arranged at the second injection molding working position; when the positioning pin assembly is docked with the first positioning ring assembly, the first grasping mechanism 1 is aligned with the first injection molding working position, and at the same time, the second grasping mechanism 2 is aligned with the second injection molding working position. The manipulator drives the first grasping mechanism 1 and the second grasping mechanism 2 to move simultaneously through the mounting frame 3, so as to simultaneously remove the workpiece at the first injection molding working position and the workpiece at the second injection molding working position; when the positioning pin assembly is docked with the second positioning ring assembly, the first grasping mechanism 1 is aligned with the second injection molding working position. By integrating the first grasping mechanism 1 and the second grasping mechanism 2 on the mounting frame 3 and simultaneously setting the positioning pin assembly and the positioning ring assembly, the present utility model can enable the second grasping mechanism 2 to grasp the finished workpiece while the first grasping mechanism 1 grasps the semi-finished workpiece, thereby compacting the production rhythm, saving the workpiece transfer time, and improving the production efficiency.

[0040] The positioning pin assembly includes several positioning pins 5; the end of a single positioning pin 5 is equipped with several limiting steel balls 6 arranged along the circumference; the first positioning ring assembly includes several first positioning rings 7; the second positioning ring assembly includes several second positioning rings 8. The positioning pin 5 is used to cooperate with the first positioning ring 7 and the second positioning ring 8;

[0041] A single limiting steel ball 6 is assembled with a positioning pin 5 through a spring. When the positioning pin 5 is inserted into the first positioning ring 7 and the second positioning ring 8, the limiting steel ball 6 can fill the gap between the outer circumferential surface of the positioning pin 5 and the inner side wall surface of the positioning ring, improving the positioning accuracy.

[0042] When the positioning pin 5 is inserted into the corresponding first positioning ring 7, it indicates that the first grasping mechanism 1 is already aligned with the first injection molding working position at this time, which can ensure that the first grasping mechanism 1 stably grasps the workpiece at the first injection molding working position.

[0043] When the positioning pin 5 is inserted into the corresponding second positioning ring 8, it indicates that the first grasping mechanism 1 is already aligned with the second injection molding working position at this time, which can ensure that the first grasping mechanism 1 stably places the workpiece already grasped from the first injection molding working position onto the second injection molding working position.

[0044] In order to achieve two-color injection molding in the present utility model, a first injection molding working position and a second injection molding working position are provided inside the injection molding machine. As Figure 6 shown, the first injection molding working position corresponds to the first injection mold (the first injection mold in the attached drawing is a partial structure), the second injection molding working position corresponds to the second injection mold (the first injection mold in the attached drawing is a partial structure), the first positioning ring assembly is arranged on the first injection mold, and the second positioning ring assembly is arranged on the second injection mold.

[0045] A semi-finished workpiece is obtained by injection molding through the first injection mold, and a finished workpiece is obtained by injection molding the semi-finished workpiece through the second injection mold.

[0046] The first grasping mechanism 1 is used to remove the semi-finished workpiece from the first injection molding working position and transfer it to the second injection molding working position for secondary injection molding of the semi-finished workpiece.

[0047] As Figures 3-4 shown, the structure of the first grasping mechanism 1 is as follows: it includes a first fixed seat 101, a first cylinder 103 is fixed on the first fixed seat 101, the output end of the first cylinder 103 is connected to a first movable plate 102, several first spring plungers 105 are assembled on the first movable plate 102, the plunger head of a single first spring plunger 105 is connected to a first suction cup 106, each first suction cup 106 is connected to an external negative pressure source, and several push rods 107 are also assembled on the first movable plate 102, and a rubber head 108 is provided at the end of a single push rod 107. The first fixed seat 101 is fixedly installed at the bottom of the installation frame 3 and is used to install the first cylinder 103; the first cylinder 103 drives the first movable plate 102 to move linearly, so that the first suction cups 106 and rubber heads 108 on the first movable plate 102 move linearly closer to or farther away from the workpiece.

[0048] A plurality of first pneumatic clamps 104 are also installed on the first movable plate 102. A gate is installed on the injection mold, and the gate is used for injecting plastic feed. The first pneumatic clamp 104 is used to remove the gate on the first injection mold after one injection molding is completed.

[0049] The rubber head 108 is frustum-shaped. The rubber head 108 is used to push the semi-finished workpiece when the first grasping mechanism 1 places the semi-finished workpiece on the second injection mold, so as to ensure that the semi-finished workpiece can be stuck on the second injection mold.

[0050] The second grasping mechanism 2 is used to grasp the finished workpiece at the second injection working position and transfer the finished workpiece to the centralized storage working position;

[0051] As Figure 5 shown, the structure of the second grasping mechanism 2 is: including a second cylinder 203 fixed to the bottom of the installation frame 3, the output end of the second cylinder 203 is connected to the second movable plate 202, and a suction cup assembly is installed on the second movable plate 202. The suction cup assembly uses a negative pressure adsorption method to suck the corresponding workpiece. In the present invention, the second cylinder 203 is fixed to the bottom of the installation frame 3 through a second fixed seat 201; the second cylinder 203 drives the second movable plate 202 to move linearly, so as to drive the suction cup assembly on the second movable plate 202 to move linearly closer to or away from the workpiece;

[0052] The suction cup assembly includes several second spring plungers 205. The plunger head of a single second spring plunger 205 is connected to the second suction cup 206, and each second suction cup 206 is connected to an external negative pressure source.

[0053] In the present invention, by setting the spring plunger, the corresponding suction cup can move along the axial direction of the spring plunger, so as to buffer when the suction cup contacts the corresponding workpiece.

[0054] The installation frame 3 is quickly disassembled and assembled with the working end of the manipulator through a quick-change disk 4. By setting the quick-change disk 4, the quick disassembly and assembly of the installation frame 3 and the manipulator can be realized, and the disassembly and assembly efficiency can be improved; in addition, in the present invention, a positioning element made of high-strength steel is arranged inside the quick-change disk 4, which is wear-resistant and can realize the high-precision repeat positioning function.

[0055] The working process of the present invention is as follows:

[0056] As Figure 6 shown, when the injection molding machine completes one injection molding, at this time, the semi-finished workpiece at the first injection working position and the finished workpiece at the second injection working position inside it are simultaneously completed with injection molding;

[0057] The movable mold in the first injection mold drives the semi-finished workpiece to demold, and at the same time, the movable mold in the second injection mold drives the finished workpiece to demold;

[0058] After the demolding is completed, the manipulator drives the first grasping mechanism 1 and the second grasping mechanism 2 to move simultaneously through the mounting frame 3. When the positioning pin assembly is inserted into the first positioning ring assembly, the first cylinder 103 extends, driving the first movable plate 102 to move linearly in the vertical direction towards the semi-finished workpiece, thereby driving the first suction cup 106 towards the semi-finished workpiece until the first suction cup 106 stably sucks the semi-finished workpiece. At this time, there is a gap between the end of the rubber head 108 and the semi-finished workpiece;

[0059] Meanwhile, the second cylinder 203 extends, driving the second movable plate 202 to move linearly in the vertical direction towards the finished workpiece, thereby driving the second suction cup 206 towards the finished workpiece until the second suction cup 206 stably sucks the finished workpiece;

[0060] Subsequently, the manipulator drives the first grasping mechanism 1 and the second grasping mechanism 2 to move simultaneously through the mounting frame 3 again. When the positioning pin assembly is inserted into the second positioning ring assembly, the first cylinder 103 continues to extend, driving the first movable plate 102 to move linearly in the vertical direction towards the second injection mold, thereby driving the semi-finished workpiece close to the second injection mold through the first suction cup 10 until the semi-finished workpiece is placed on the second injection mold;

[0061] Then, the first cylinder 103 continues to extend, driving the first movable plate 102 to move linearly in the vertical direction towards the second injection mold until the end of the rubber head 108 abuts against the semi-finished workpiece on the second injection mold, thereby stably placing the semi-finished workpiece on the second injection mold; At this time, under the action of the first spring plunger 105, the first suction cup 106 can move along the axial direction of the first spring plunger 105, so that the rubber head 108 can contact the workpiece;

[0062] Finally, the manipulator transfers the finished workpiece to the centralized storage working position through the second grasping mechanism 2.

[0063] The above description is an explanation of the present utility model, not a limitation of the utility model. The scope defined by the present utility model can be seen in the claims. Within the protection scope of the present utility model, any form of modification can be made.

Claims

1. A special gripper device for two-color injection molded parts, characterized in that: It includes a mounting frame (3) connected to the working end of the manipulator. At the bottom of the mounting frame (3), a first grasping mechanism (1) and a second grasping mechanism (2) arranged at intervals are equipped. At the bottom of the mounting frame (3), a positioning pin assembly is equipped. The positioning pin assembly corresponds to a first positioning ring assembly arranged at a first injection molding working position, and the positioning pin assembly also corresponds to a second positioning ring assembly arranged at a second injection molding working position; When the positioning pin assembly is docked with the first positioning ring assembly, the first grasping mechanism (1) is aligned with the first injection molding working position. At the same time, the second grasping mechanism (2) is aligned with the second injection molding working position. The manipulator drives the first grasping mechanism (1) and the second grasping mechanism (2) to move simultaneously through the mounting frame (3), so as to simultaneously remove the workpiece at the first injection molding working position and the workpiece at the second injection molding working position; When the positioning pin assembly is docked with the second positioning ring assembly, the first grasping mechanism (1) is aligned with the second injection molding working position.

2. The special gripper device for two-color injection molded parts according to claim 1, characterized in that: The structure of the first grasping mechanism (1) is as follows: it includes a first fixed seat (101). A first cylinder (103) is fixed on the first fixed seat (101). The output end of the first cylinder (103) is connected to a first movable plate (102). Several first spring plungers (105) are equipped on the first movable plate (102). The plunger head of a single first spring plunger (105) is connected to a first suction cup (106). Each first suction cup (106) is connected to an external negative pressure source. Several push rods (107) are also equipped on the first movable plate (102). The end of a single push rod (107) is provided with a rubber head (108).

3. The special gripper device for two-color injection molded parts according to claim 2, characterized in that: Several first pneumatic clamps (104) are also equipped on the first movable plate (102).

4. The special gripper device for two-color injection molded parts according to claim 2, characterized in that: The rubber head (108) is frustum-shaped.

5. The special gripper device for two-color injection molded parts according to claim 1, characterized in that: The structure of the second grasping mechanism (2) is as follows: it includes a second cylinder (203) fixed to the bottom of the mounting frame (3). The output end of the second cylinder (203) is connected to a second movable plate (202). A suction cup assembly is equipped on the second movable plate (202). The suction cup assembly sucks the corresponding workpiece by means of negative pressure adsorption.

6. The special gripper device for two-color injection molded parts according to claim 1, characterized in that: The positioning pin assembly includes several positioning pins (5).

7. The dedicated gripper device for two-color injection molded parts according to claim 6, characterized in that: The end of a single positioning pin (5) is equipped with several limiting steel balls (6) arranged in a circumferential manner.

8. The special gripper device for two-color injection molded parts according to claim 1, characterized in that: The mounting frame (3) is in quick-release fit with the working end of the manipulator through a quick-change disk (4).

9. The special gripper device for two-color injection molded parts according to claim 1, characterized in that: The first positioning ring assembly includes several first positioning rings (7).

10. A special gripper device for two-color injection molded parts according to claim 1, characterized in that: The second positioning ring assembly includes several second positioning rings (8).

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