A power strip switch feeding and detecting device for power strip assembly

Abstract

This utility model discloses a power strip switch supply and testing device for power strip assembly, belonging to the technical field of power strip assembly equipment. It includes a vibratory feeder, a material handling robot, and an assembly robot, as well as a continuity screening device disposed between the material handling robot and the assembly robot. The material handling robot picks up power strip switches from the vibratory feeder and places them into the continuity screening device. The assembly robot picks up power strip switches from the continuity screening device and installs the switches in the on / off state into the power strip's base shell. The continuity screening device distinguishes the on / off states of the power strip switches. This technical solution ensures that the on / off states of the power strip switches assembled into the power strip's base shell are consistent, improving power strip assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of power strip assembly equipment, specifically relating to a power strip switch supply and testing device for power strip assembly. Background Technology

[0002] Power strip products are equipped with corresponding power strip switches. Different models of power strip products are equipped with different models of power strip switches. According to the shape of the button shell of the power strip switch, there are power strip switches with square cap-shaped button shells and power strip switches with round cap-shaped button shells.

[0003] In the production of power strips, power strip switches need to be assembled into the power strips, specifically using power strip switch supply equipment for power strip assembly. For example, Chinese patent CN222320790U discloses a power strip switch assembly device. A vibratory feeder unifies the feeding direction, arranging the switch components according to a specific direction and position. The aligned switches flow into the switch feeding channel. A switch-correcting robot removes the switches from the feeding channel and moves them above a switch orientation correction camera. The camera identifies the switch's position and feeds back the offset to the robot for compensation and correction. The base shell flows into the equipment through the feeding channel, where a base shell positioning module positions the product. Finally, the robot assembles the corrected switch components with the base shell, completing the power strip switch assembly process.

[0004] The existing assembly equipment has the following problem: the power strip switch may be in a conducting state or an open state. When conducting power-on testing after assembly, the power strip switch in the open state cannot be tested, making it impossible to distinguish between unqualified products that cannot be powered on and qualified products that cannot be powered on when the switch is open. Utility Model Content

[0005] This invention provides a power strip switch supply and testing device for power strip assembly, which solves the problem of inconsistent on / off states of power strip switches in current power strip production lines.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a power strip switch supply and testing device for power strip assembly, including a vibratory feeder, a material handling robot, and an assembly robot, as well as a continuity screening device disposed between the material handling robot and the assembly robot. The material handling robot is used to pick up the power strip switch from the vibratory feeder and place it into the continuity screening device. The assembly robot is used to pick up the power strip switch from the continuity screening device and install the power strip switch in the conducting state into the bottom shell of the power strip. The continuity screening device is used to distinguish the on / off state of the power strip switch.

[0007] Specifically, the on / off screening device includes a carrier plate, a positioning hole on the carrier plate, a gripper for fixing the power strip switch, a gripper drive, a push rod assembly located below the positioning hole, a push rod lifting drive, and an optical fiber sensor. The push rod assembly is used to lift the button cap of the power strip switch, which naturally droops due to its own weight, and the optical fiber sensor is used to detect whether the button cap retracts.

[0008] Specifically, the driving force applied to the push rod assembly by the push rod lifting drive is less than the supporting force of the spring inside the power strip switch on the button cap.

[0009] Specifically, the push rod assembly includes a push rod and a contact. The push rod has a blind hole with the orifice facing upwards, and the contact is detachably installed in the blind hole.

[0010] Specifically, the on / off screening device further includes a carrier plate rotation drive, which is used to alternately change the material feeding position of the picking robot and the material picking position of the assembly robot.

[0011] Specifically, the carrier plate has several positioning holes at both ends for button caps that are adapted to different specifications of power strip switches, and each positioning hole is equipped with a gripper.

[0012] Specifically, the vibratory feeder includes an outer disk and a vibration drive that drives the outer disk to vibrate, as well as an inner disk embedded in the outer disk. The inner disk has a positioning groove with a diameter larger than the button cap of the power strip switch and a diameter smaller than the switch body of the power strip switch.

[0013] Specifically, it also includes a direct-vibration hopper and a CCD camera. The CCD camera is used to detect whether the gripping posture of the power strip switch in the vibratory feeder is qualified, and to detect the number of power strip switches available for gripping in the vibratory feeder. The direct-vibration hopper is used to supply power strip switches to the vibratory feeder.

[0014] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0015] An on / off screening device is added between the vibratory feeder and the power strip switch assembly to detect the on / off status of the power strip switches. This ensures that the on / off status of the power strip switches assembled to the bottom shell is consistent, eliminating the need to screen the power strip switches on the production line. This avoids the rejection of power strip switches due to non-faulty reasons, which would lead to insufficient material supply for the next assembly process. It also ensures that faulty products can be accurately identified in the power-on testing process, thereby improving the efficiency of power strip assembly. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the power strip switch supply and testing equipment used for power strip assembly in this utility model embodiment;

[0017] Figure 2This is a structural diagram of the silo and the direct vibration silo in the embodiments of this utility model;

[0018] Figure 3 This is a structural diagram of the on / off screening device in an embodiment of this utility model;

[0019] Figure 4 This is a structural diagram of the gripper in an embodiment of this utility model;

[0020] Figure 5 This is a bottom view of the on / off screening device in an embodiment of this utility model;

[0021] Figure 6 This is a structural diagram of the push rod in an embodiment of this utility model;

[0022] Figure 7 This is a cross-sectional view of the top rod in an embodiment of this utility model.

[0023] The diagram shows: 10. Hopper; 11. Feed inlet; 12. Belt conveyor; 20. Vertical vibration hopper; 21. Baffle; 22. Through-beam photoelectric sensor; 30. Vibratory feeder; 31. Outer plate; 32. Inner plate; 33. Base; 40. Material handling robot; 50. On / off screening device; 51. Base plate; 52. Carrier plate; 53. Carrier plate rotation drive; 54. Gripper; 541. Linear slide rail; 542. First clamping block; 543. Rod base; 544. Second clamping block. 545. Elastic rod; 546. Strip guide groove; 547. Guide part; 55. Gripper drive; 551. Support base; 552. Gripper cylinder; 553. Y-shaped push rod; 56. Push rod; 561. Blind hole; 563. First pin hole; 564. Second pin hole; 57. Push rod lifting drive; 58. Contact; 59. Positioning hole; 60. Assembly robot; 70. CCD camera; 80. Fiber optic sensor; 90. First detection camera; 91. Second detection camera. Detailed Implementation

[0024] For ease of understanding, the following embodiments illustrate the power strip switch supply and testing equipment for power strip assembly. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation and positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1 As shown, the power strip switch supply and testing equipment used for power strip assembly in this embodiment includes a hopper 10, a belt conveyor line 12, a direct vibration hopper 20, a vibratory feeder 30, a picking robot 40, an on / off screening device 50, and an assembly robot 60. The picking robot 40 picks up the power strip switches from the vibratory feeder 30 and places them into the on / off screening device 50, which distinguishes the on / off state of the power strip switches. The assembly robot 60 picks up the power strip switches from the on / off screening device 50, installs the on-state power strip switches into the power strip's bottom shell, and discards the off-state power strip switches into a waste box. In this embodiment, the on / off screening device 50 is located between the vibratory feeder 30 and the assembly robot 60, avoiding errors caused by changes in the on / off state of the power strip switches due to vibration impact during the vibratory feeding process, and ensuring that the on / off state of the power strip switches on the power strip assembly production line is consistent.

[0028] In this embodiment, the power strip switch includes a switch body, a button cap, a button rod, and a spring. The button cap comes in two sizes: square and round. When the power strip switch is in the ON state, the spring inside the power strip switch is in a compressed state. When the power strip switch is in the OFF state, the spring inside the power strip switch is in an open state to support the button cap.

[0029] like Figure 2 As shown, the hopper 10 is funnel-shaped, with an inlet 11 at its upper end. A belt conveyor 12 is laid at the lower end of the hopper 10. Plug-in switches enter the hopper 10 through the inlet 11, fall onto the belt conveyor 12, and are then transported out of the hopper 10 by the belt conveyor 12. A vertical vibrating hopper 20 is installed at the outlet end of the belt conveyor 12, and a vibrating plate 30 is installed at the output end of the vertical vibrating hopper 20. A CCD camera 70 is installed above the vibrating plate 30. Plug-in switches flow into the vertical vibrating hopper 20 through the belt conveyor 12, and are then supplied to the vibrating plate 30 by the vertical vibrating hopper 20. The CCD camera 70 is used to detect the number of plug-in switches available for gripping in the vibrating plate 30, and controls the vertical vibrating hopper 20 to supply plug-in switches to the vibrating plate 30 based on this information. Simultaneously, the CCD camera 70 can also detect whether the gripping posture of the plug-in switches in the vibrating plate 30 is qualified.

[0030] Continue as Figure 2 As shown, the discharge port of the direct-vibration hopper 20 is equipped with a baffle 21. The baffle 21 can be manually installed onto or removed from the direct-vibration hopper 20. Placing the baffle 21 prevents the direct-vibration hopper 20 from feeding power strip switches into the vibrating plate 30. Removing the baffle 21 allows the direct-vibration hopper 20 to smoothly feed power strip switches into the vibrating plate 30. The direct-vibration hopper 20 is equipped with a through-beam photoelectric sensor 22, which detects whether there is a shortage of material in the direct-vibration hopper 20, ensuring that a certain number of power strip switches are maintained in the direct-vibration hopper 20. Through the baffle 21 and the through-beam photoelectric sensor 22, the feeding of power strip switches from the direct-vibration hopper 20 into the vibrating plate 30 can be controlled. Ensure that there is neither a shortage nor an excess of power strip switches inside the vibratory feeder 30. This is to prevent insufficient material in the vibratory feeder 30 from affecting the normal operation of the equipment, and also to prevent an excess of power strip switches inside the vibratory feeder 30 from causing them to collide and be damaged during the tossing process.

[0031] like Figure 1 As shown, the vibratory feeder 30 includes a vibration drive, an outer disk 31, an inner disk 32, and a base 33. The vibration drive (not shown in the figure) is located in the base 33. The vibration drive is used to drive the outer disk 31 and the inner disk 32 to vibrate relative to the base 33. The inner disk 32 is embedded in the outer disk 31. The inner disk 32 has a positioning groove with a diameter larger than the button cap of the power strip switch and a diameter smaller than the switch body of the power strip switch. The positioning groove is used to accommodate the button cap and can accommodate both square and round caps.

[0032] Working principle of vibratory feeder 30: Vibration drive is used to drive the outer disk 31 to vibrate relative to the base 33. The inner disk 32 vibrates synchronously with the outer disk 31. The power strip switch that is not embedded in the guide hole in the inner disk 32 is thrown upward. When the power strip switch is in free fall, it adjusts its own posture under the action of gravity. The button cap is downward and the switch body is upward. If the button cap falls into the positioning groove, the posture adjustment is completed. Otherwise, the power strip switch is continuously thrown up and down until the button cap falls into the positioning groove.

[0033] like Figure 3 As shown, the on / off screening device 50 includes a base plate 51, a carrier plate 52, a carrier plate rotation drive 53, a gripper 54 mounted on the carrier plate 52, a gripper drive 55, a top rod assembly, a top rod lifting drive 57, and an optical fiber sensor 80.

[0034] like Figures 3 to 5 As shown, the carrier plate 52 has two positioning holes 59 at each end, which are adapted to two different specifications of power strip switches: one with a square cap and the other with a round cap. The positioning holes 59 are used to limit the power strip switches and achieve pre-positioning of the power strip switches.

[0035] like Figure 1 and Figure 3As shown, a base plate 51 is provided below the carrier plate 52, and a carrier plate rotation drive 53 is mounted on the base plate 51. The carrier plate rotation drive 53 is a motor or a rotary cylinder, and its output end is connected to the center of the bottom surface of the carrier plate 52 to drive the carrier plate 52 to rotate. The rotation of the carrier plate 52 realizes the alternating changing of the material placement position of the picking robot 40 and the material picking position of the assembly robot 60. Specifically, the picking robot 40 places a plug-in switch with a square cap in the positioning hole 59 at the left end of the carrier plate 52, and then the carrier plate 52 rotates 180 degrees, so that the plug-in switch with the square cap is in the positioning hole 59 at the right end of the carrier plate 52, which speeds up the operation rhythm of the robot's picking and placing, and improves efficiency.

[0036] like Figures 3 to 5 As shown, each positioning hole 59 is correspondingly provided with a gripper 54. The gripper 54 includes a linear slide rail 541 fixed on the carrier plate 52, a first clamping block 542, and a rod seat 543, as well as a second clamping block 544 slidably connected to the linear slide rail 541. One end of the linear slide rail 541 is provided with the first clamping block 542, and the other end is provided with the rod seat 543. An elastic rod 545 is installed on the rod seat 543. The elastic rod 545 includes a sleeve fixed on the rod seat 543, a first spring placed in the sleeve, and a rod body. One end of the first spring is fixedly connected to the rod body, and the other end is fixedly connected to the bottom of the sleeve. The direction of the rod body is consistent with that of the linear slide rail 541, and the end of the rod body is fixedly connected to the second clamping block 544. The carrier plate 52 has a strip-shaped guide groove 546, and the direction of the strip-shaped guide groove 546 is also consistent with that of the linear slide rail 541. The second clamping block 544 protrudes downward to form a guide portion 547 passing through the strip-shaped guide groove 546. In this embodiment, the elastic rod 545 can be any structure that can be directionally elastically stretched and contracted, and the specific structure of the elastic rod 545 is not limited here.

[0037] Continue as Figure 3 and Figure 5As shown, the two grippers 54 at the same end of the carrier plate 52 correspond to the same gripper drive 55. The gripper drive 55 includes a support base 551 fixedly installed on the base plate 51, a gripper cylinder 552 fixedly installed on the support base 551, and a Y-shaped push rod 553 connected to the output end of the gripper cylinder 552. The working principle of the gripper drive 55: The output end of the gripper cylinder 552 pushes the Y-shaped push rod 553 to move. The Y-shaped push rod 553 pushes the guide part 547 to move along the strip guide groove 546. The second gripper block 544 then moves along the linear slide rail 541. The first spring of the elastic rod 545 is compressed, and the second gripper block 544 separates from the first gripper block 542. The positioning hole 59 between the first gripper block 542 and the second gripper block 544 is exposed. The picking robot 40 places the power strip switch into the positioning hole 59. The output end of the gripper cylinder 552 resets, the Y-shaped push rod 553 resets, and the first spring resets, pushing the second gripper block 544 to move along the linear slide rail 541 until the first gripper block 542 and the second gripper block 544 clamp the power strip switch in the positioning hole 59. Conversely, the second gripper block 544 and the first gripper block 542 separate first, the assembly robot 60 removes the power strip switch from the positioning hole 59, and the second gripper block 544 and the first gripper block 542 close again.

[0038] like Figure 1 As shown, a first detection camera 90 is provided above the on / off screening device 50, and a second detection camera 91 is provided below each positioning hole 59.

[0039] like Figure 4 , Figure 6 and Figure 7 As shown, the push rod assembly includes a push rod 56 and a contact 58. The push rod 56 has a blind hole 561 with its opening facing upwards, and the contact 58 is installed in the blind hole 561. The push rod lifting drive 57 is a cylinder mounted on the base plate 51. Opposite first pin holes 563 are provided on both sides of the blind hole 561, and the contact 58 also has a second pin hole 564 at the corresponding position. By inserting a pin into the first pin hole 563 and the second pin hole 564, the contact 58 is fixed to the push rod 56. By removing the pin, the contact 58 can be detached from the push rod 56.

[0040] The power strip switch inside the positioning hole 59 has a structure consisting of a switch body, a button rod, and a button cap, from top to bottom.

[0041] Continuity detection principle: When the power strip switch inside the positioning hole 59 is in the ON state, the spring of the power strip switch is in a compressed state. The button cap of the power strip switch hangs down naturally due to its own weight. The push rod assembly moves upward, and the contact 58 moves upward. The contact 58 pushes the button cap upward, that is, pushes the button cap back. The detection point of the fiber optic sensor 80 is projected onto the outer wall of the button cap. When the power strip switch inside the positioning hole 59 is in the OFF state, the spring of the power strip switch is not compressed. The button cap of the power strip switch is pushed downward by the spring. The driving force applied by the push rod lifting drive 57 to the push rod assembly is less than the supporting force of the spring on the button cap inside the power strip switch. The contact 58 cannot push the button cap back, and the button cap cannot cover part of the button rod. The detection point of the fiber optic sensor 80 is projected onto the outer wall of the button rod. The fiber optic sensor 80 obtains information about whether the button cap has retracted by the color difference between the contact and the outer wall of the button cap. If it retracts, it means that the power strip switch is in the ON state. If it does not retract, it means that the power strip switch is in the OFF state, and the detection is completed.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A power strip switch supply, detection device for power strip assembly, characterized in that, The device includes a vibratory feeder, a material handling robot, and an assembly robot, as well as a continuity screening device disposed between the material handling robot and the assembly robot. The material handling robot is used to pick up a power strip switch from the vibratory feeder and place it into the continuity screening device. The assembly robot is used to pick up a power strip switch from the continuity screening device and install the power strip switch in the on state into the power strip bottom shell. The continuity screening device is used to distinguish the on and off states of the power strip switch.

2. The power strip switch feeding and detecting apparatus for power strip assembly according to claim 1, wherein The on / off screening device includes a carrier plate, a positioning hole on the carrier plate, a gripper for fixing the power strip switch, a gripper drive, a push rod assembly located below the positioning hole, a push rod lifting drive, and an optical fiber sensor. The push rod assembly is used to lift the button cap of the power strip switch, which naturally droops due to its own weight, and the optical fiber sensor is used to detect whether the button cap retracts.

3. The power strip switch feeding and detecting apparatus for power strip assembly according to claim 2, wherein The driving force applied to the push rod assembly by the push rod lifting drive is less than the supporting force of the spring inside the power strip switch on the button cap.

4. The power strip switch feeding and detecting apparatus for power strip assembly according to claim 3, wherein The push rod assembly includes a push rod and a contact. The push rod has a blind hole with the opening facing upwards, and the contact is detachably installed in the blind hole.

5. The power strip switch feeding and detecting apparatus for power strip assembly according to claim 2, wherein The on / off screening device also includes a carrier plate rotation drive, which is used to alternately change the material feeding position of the picking robot and the material picking position of the assembly robot.

6. The power strip switch feeding and detecting apparatus for power strip assembly according to claim 5, wherein The carrier plate has several positioning holes at both ends to accommodate button caps of different specifications of power strip switches, and each positioning hole is equipped with a corresponding gripper.

7. The power strip switch feeding and detecting apparatus for power strip assembly according to claim 1, wherein The vibratory feeder includes an outer disc and a vibration drive that drives the outer disc to vibrate, as well as an inner disc embedded in the outer disc. The inner disc has a positioning groove with a diameter larger than the button cap of the power strip switch and a diameter smaller than the switch body of the power strip switch.

8. The power strip switch feeding and detecting apparatus for power strip assembly of claim 1, wherein, It also includes a direct-vibration hopper and a CCD camera. The CCD camera is used to detect whether the gripping posture of the power strip switch in the vibratory feeder is qualified, and to detect the number of power strip switches available for gripping in the vibratory feeder. The direct-vibration hopper is used to supply power strip switches to the vibratory feeder.

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