A detection device for electric energy metering device production

Abstract

The present application relates to the technical fields of electric energy metering device detection, and especially relates to a detection device for electric energy metering device production, which comprises a base, an ultrasonic heat sealing machine, a pushing table, a pushing rod, a pulling table, a pulling rod and the like; the ultrasonic heat sealing machine, the pushing table and the pulling table are fixedly connected to the base; the pushing rod for pushing the current transformer to the ultrasonic heat sealing machine is slidably connected to the pushing table; the pulling rod is slidably connected to the pulling table; the pulling rod is used for pulling the welded current transformer to the pulling table for detection. The device can automatically feed and assemble the upper shell and the lower shell of the current transformer, and can automatically transport the assembled current transformer to the welding station and the detection station, solving the defects of manual assembly and transfer station in the prior art, and the automatic detection mode of the device is more convenient and faster compared with the workers connecting the current transformer by using the wire clamp and the terminal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric energy metering device detection, and particularly relates to a detection device for electric energy metering device production. BACKGROUND

[0002] A current transformer is an instrument for converting a large current on a primary side into a small current on a secondary side for measurement according to the principle of electromagnetic induction. In power generation, power transformation, power transmission, power distribution and power consumption circuits, the current size is greatly different, and high voltage may be accompanied. In order to facilitate measurement, protection and control of the circuit, it is necessary to convert it into a relatively uniform current. The current transformer plays a role of current conversion and electrical isolation.

[0003] At present, a plastic shell type current transformer needs to wind a core first in the production process, and then the wound core is bonded and fixed in the lower shell through the point gluing mode. Then the upper shell and the lower shell are manually assembled together and placed on an ultrasonic heat sealing machine. The upper shell and the lower shell are welded together by the ultrasonic heat sealing machine to form a finished product of the current transformer. Finally, the finished product of the current transformer is transferred to a detection station for detection.

[0004] The defects of the current production method are that workers need to manually assemble the upper shell and the lower shell together, and after welding by the ultrasonic heat sealing machine, the workers need to manually transfer to the detection station for detection. In addition, during detection, workers usually need to use a wire clamp or a terminal to connect two poles of the current transformer. Manual operation connection leads to low detection efficiency and consumes human resources. SUMMARY

[0005] In order to overcome the shortcomings that the current transformer needs to be manually transferred to the detection station after welding and the detection efficiency is low in the prior art, the present application aims to provide a detection device for electric energy metering device production, which can automatically detect the welded current transformer.

[0006] The technical scheme is as follows: a detection device for electric energy metering device production, comprising a base, an ultrasonic heat sealing machine, a pushing table, a pushing rod, a pulling table, a pulling rod, a pneumatic clamping jaw, a support frame, a conductive cylinder, a conductive rod, a pneumatic sliding plate, a detection touch rod and a control box, the base is fixedly connected with the ultrasonic heat sealing machine, the pushing table and the pulling table, the pushing table is slidably connected with the pushing rod for pushing the current transformer to the ultrasonic heat sealing machine, the pulling table is slidably connected with the pulling rod, the pulling rod is used for pulling the welded current transformer to the pulling table for detection, the pulling rod is slidably connected with the pneumatic clamping jaw, the pulling table is fixedly connected with the conductive cylinder through the support frame, two conductive cylinders correspond to the positive and negative poles of the circuit respectively, the conductive cylinder is inserted with the conductive rod, the pushing table is slidably connected with the pneumatic sliding plate, the pneumatic sliding plate is fixedly connected with two detection touch rods, the detection touch rods are used for butt joint with the positive and negative poles of the current transformer, the control box is arranged on the base, the control box can provide large current for a group of circuits, and also can detect the value of another group of small current circuits, the control box is electrically connected with the conductive cylinder and the detection touch rod, the conductive cylinder, the conductive rod and the control box form a group of circuits, the detection touch rod, the current transformer and the control box form another group of circuits, and the control box can identify the current value of the circuit to judge whether the current transformer is qualified.

[0007] As preferred, the feeding mechanism for automatically placing the upper shell on the lower shell is further included, the feeding mechanism comprises a material box, a lifting sliding plate, a feeding clamp plate, a feeding cylinder and a material blocking assembly, the material box is fixedly connected on the pushing table, the lifting sliding plate is slidably connected on the material box, the feeding clamp plate is slidably connected on the lifting sliding plate, the feeding clamp plate is used for clamping the upper shell in the material box, the feeding cylinder for driving the feeding clamp plate is fixedly connected on the lifting sliding plate, the material blocking assembly is installed on the material box, and the material blocking assembly is used for blocking the upper shell in the material box from falling out.

[0008] As preferred, the material blocking assembly comprises a blocking plate, a first spring and a top plate, the blocking plate is slidably connected on the material box, the first spring is sleeved on the blocking plate, the top plate is fixedly connected on the feeding clamp plate, and the top plate and the blocking plate are extruded and matched, so that the blocking plate no longer blocks the upper shell from falling out.

[0009] As preferred, the control mechanism for allowing the feeding mechanism to take out only one upper shell at a time is further included, the control mechanism is connected with the feeding clamp plate, the control mechanism comprises a guide rod, a second spring and a control clamp block, the control clamp block is slidably connected with the guide rod on the feeding clamp plate, the second spring is sleeved on the guide rod, the control clamp block is slidably connected on the material box in the horizontal direction, and the control clamp block is used for clamping the upper shell of the same height in the material box.

[0010] Preferably, it also includes a pushing mechanism for pushing the lower housing. The pushing mechanism is connected to the material box. The pushing mechanism includes a pushing rod and a pushing block. The material box has two cavities of different lengths, which are used to stack the upper housing and the lower housing respectively. The pushing rod is slidably connected to the pushing platform. The pushing rod is used to push the lower housing at the bottom to the bottom of the other cavity. The pushing block is fixedly connected to the pushing platform for positioning the lower housing.

[0011] Preferably, the pushing mechanism also includes a transmission guide frame and a transmission frame. The transmission guide frame is fixedly connected to the lifting slide plate, and the transmission frame is fixedly connected to the pushing rod. The upper side of the transmission frame is slidably connected to the slide rail on the transmission guide frame. When the lifting slide plate moves, the transmission frame will drive the pushing rod to move horizontally under the action of the transmission guide frame.

[0012] Preferably, the system also includes a drive mechanism for driving the lifting slide plate and the conductive rod to lift. The drive mechanism is mounted on the base and includes a drive plate, a main cylinder and a drive bracket. The drive bracket is fixedly connected to the base, and the drive plate is slidably connected to the drive bracket. The main cylinder for controlling the lifting of the drive plate is fixedly connected to the drive bracket. The conductive rod and the transmission guide frame are both fixedly connected to the drive plate.

[0013] Preferably, the device also includes a support mechanism for automatically unloading the current transformer after testing. The support mechanism is connected to the feeding platform and includes a feeding plate, a positioning block, and a feeding stop. The feeding plate is slidably connected to the feeding platform. The positioning block is fixed to the feeding plate to prevent the current transformer from moving. The feeding stop is fixed to the feeding platform to push the current transformer off the feeding plate. The feeding platform has a through hole that allows the current transformer to fall onto the base.

[0014] Preferably, the supporting mechanism also includes a torsion bar, a torsion spring, a telescopic bar, a No. 3 spring, a hinged rod, a fixed block, and a lever. The torsion bar is rotatably connected to the drive bracket, and a torsion spring is connected between the torsion bar and the drive bracket. The telescopic bar is slidably connected to the torsion bar, and a No. 3 spring is sleeved on the telescopic bar. The telescopic bar is rotatably connected to the feed plate through the hinged rod. A lever is fixed to the drive plate through the fixed block. The lever and the torsion bar are pressed together to drive the torsion bar to rotate, thereby driving the feed plate to slide.

[0015] Preferably, the device also includes an electric slide for driving the push rod and the pull rod. The electric slide structure includes a lead screw, an internal thread plate, and a motor. The pull rod and the push rod are rotatably connected to the lead screw, and the lead screw is threadedly connected to the internal thread plate. When the lead screw rotates, it will drive the two internal thread plates to move synchronously in opposite directions. One internal thread plate is fixedly connected to the pull rod, and the other internal thread plate is fixedly connected to the push rod. A motor for driving the lead screw to rotate is fixedly connected to the push rod.

[0016] The beneficial effects of this invention are:

[0017] 1. This device can automatically feed and assemble the upper and lower housings of current transformers, and can automatically transport the assembled current transformers to the welding and testing stations. This solves the problem of manual assembly and station transfer required by existing technologies. Moreover, compared with workers using wire clamps and terminals to connect current transformers, the automated testing method of this device is more convenient and faster.

[0018] 2. With the upper and lower housings placed horizontally for quick assembly, the conductive rod is set vertically so that it can quickly pass through the current transformer and connect with the two conductive cylinders to start the test when the current transformer is moved to the bottom, thus improving the testing efficiency.

[0019] 3. When the feeding clamping plate clamps the upper shell, the top plate squeezes the baffle plate, so that the baffle plate no longer blocks the upper shell in the material box from falling downward. The feeding clamping plate will also drive the control clamping block to clamp the upper shell above, so that the feeding clamping plate can realize the function of feeding the upper shell in the material box individually.

[0020] 4. During the process of the lifting slide plate driving the feeding clamp to convey the upper housing downward, it can drive the push rod through the transmission guide frame and transmission frame to push the lower housing directly below the upper housing, which not only realizes the function of automatically assembling the current transformer, but also further improves the assembly efficiency.

[0021] 5. When the main cylinder realizes the function of synchronously driving the conductive rod and the lifting slide plate through the drive plate, the drive plate can also drive the unloading plate to slide through the lever, torsion bar and torsion spring, so that the unloading plate can first support the current transformer for detection, and then release the support to let the current transformer fall and be unloaded. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram showing the positional relationship of the pusher platform according to the present invention.

[0024] Figure 3 This is a schematic diagram showing the positional relationship of the support frame according to the present invention.

[0025] Figure 4 This is a schematic diagram of the conductive cylinder structure of the present invention.

[0026] Figure 5 This is a schematic diagram showing the positional relationship of the material bins in this invention.

[0027] Figure 6 This is a schematic cross-sectional view of the material box structure of the present invention.

[0028] Figure 7 This is a schematic diagram showing the positional relationship of the feeding clamps in this invention.

[0029] Figure 8 This is a schematic diagram of the baffle plate structure of the present invention.

[0030] Figure 9 This is a schematic diagram showing the positional relationship of the feed plate in this invention.

[0031] Figure 10 This is a schematic diagram of the upper and lower shell structures of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1_Base, 101_Ultrasonic heat sealing machine, 102_Pushing platform, 103_Pushing rod, 104_Pulling platform, 105_Pulling rod, 106_Pneumatic gripper, 107_Support frame, 108_Conductive cylinder, 109_Conductive rod, 110_Pneumatic slide plate, 111_Detection contact rod, 112_Control box, 2_Screw, 201_Internal thread plate, 202_Motor, 3_Material box, 301_Lifting slide plate, 302_Feeding clamp, 303_Feeding cylinder, 4_Baffle plate, 401_No. 1 spring Spring, 402_Top Plate, 5_Guide Rod, 501_Spring No. 2, 502_Material Control Clamp Block, 6_Upper Housing, 601_Lower Housing, 7_Transmission Guide Frame, 701_Transmission Frame, 702_Push Stop Block, 703_Push Rod, 8_Drive Plate, 801_Main Cylinder, 802_Drive Bracket, 9_Torsion Rod, 901_Torsion Spring, 902_Telescopic Rod, 903_Spring No. 3, 904_Hinge Rod, 905_Fixing Block, 906_Pulley Rod, 907_Discharge Plate, 908_Positioning Block, 909_Discharge Stop Block. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Example 1: A testing device for the production of electricity metering devices, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 10As shown, the device includes a base 1, an ultrasonic heat sealing machine 101, a pusher table 102, a pusher rod 103, a puller table 104, a puller rod 105, a pneumatic gripper 106, a support frame 107, a conductive cylinder 108, a conductive rod 109, a pneumatic slide plate 110, a detection contact rod 111, and a control box 112. The ultrasonic heat sealing machine 101, the pusher table 102, and the puller table 104 are fixedly connected to the base 1. The ultrasonic heat sealing machine 101 is located between the pusher table 102 and the puller table 104, and the work surfaces of all three are at the same height to facilitate the pushing of the current transformer. The ultrasonic heat sealing machine 101 is used to weld the upper housing 6 and the lower housing 601 together. The ultrasonic heat sealing machine 101 is existing technology. A push rod 103 is slidably connected to the pusher table 102. The push rod 103 is used to push the current transformer assembled on the pusher table 102 onto the ultrasonic heat sealing machine 101 for welding. A pull rod 105 is slidably connected to the pull table 104. The pull rod 105 is used to pull the current transformer on the ultrasonic heat sealing machine 101 onto the pull table 104 for testing. A pneumatic gripper 106 for holding the current transformer is slidably connected to the pull rod 105. Support frames 107 are fixed to both the upper and lower sides of the pull table 104. Conductive cylinders 108 are fixed to the support frames 107. The two conductive cylinders 108 correspond to the positive and negative poles of the circuit, respectively. Circular holes are opened on the conductive cylinders 108. A conductive rod 109 is inserted into the circular hole of the flashlight 108. Both the conductive rod 109 and the conductive cylinder 108 are made of conductive metal. A pneumatic slide plate 110 is slidably connected to the pusher table 102 in the horizontal direction. Two detection rods 111 are symmetrically fixed on the pneumatic slide plate 110. The two detection rods 111 correspond to the positive and negative poles of the circuit. The detection rods 111 are used to connect with the positive and negative poles of the current transformer. A control box 112 is set on the base 1. The control box 112 can provide a large current to one circuit while also detecting the value of another circuit with a small current. This is a prior art technique and will not be described in detail. The control box 112, the conductive cylinder 108, and the detection rods... All components 111 are electrically connected via wires. The conductive cylinder 108, conductive rod 109, and control box 112 form a circuit. When the conductive rod 109 is inserted into both conductive cylinders 108, it can connect the circuit to form a large primary current. The detection contact rod 111, current transformer, and control box 112 form another circuit. The two circuits are not connected. The current transformer converts the large primary current into a smaller secondary current. When the detection contact rod 111 is connected to the positive and negative poles of the current transformer, the value of the secondary current will be displayed on the screen of control box 112. The value displayed on control box 112 is used to determine whether the current transformer is qualified.

[0035] In this application, the upper housing 6 and the lower housing 601 are schematically shown as two parts of a current transformer. The wound iron core is first glued and fixed inside the lower housing 601. The remaining steps only require assembling the upper housing 6 and the lower housing 601 together, and then testing the assembled current transformer. The upper housing 6 and the lower housing 601 are first assembled into a current transformer, then placed on the pusher table 102 within the working stroke of the pusher rod 103. The pusher rod 103 is then controlled to push the assembled current transformer into the ultrasonic heat sealing machine. Simultaneously, the pull rod 105 moves closer to the ultrasonic heat sealing machine 101, and then the ultrasonic heat sealing machine 101 is controlled to weld the two together. After welding, the pneumatic gripper 106 is activated to clamp the welded current transformer. Then, the push rod 103 and pull rod 105 are controlled to reset away from the ultrasonic heat sealing machine 101. The pull rod 105 will move the welded current transformer out of the ultrasonic heat sealing machine 101 and move the current transformer directly below the conductive rod 109 so that... The conductive rod 109 passes through the middle of the current transformer, with the two poles of the current transformer directly facing the two detection contacts 111. Then, the upper housing 6 and lower housing 601 are assembled into a current transformer and placed on the pusher table 102. Simultaneously, the conductive rod 109 is controlled to pass through the conductive cylinder 108 and the current transformer. When the conductive rod 109 connects with the two conductive cylinders 108, a closed circuit is formed. This circuit has a large primary current. At the same time, the pneumatic slide plate 110 is controlled to approach the current transformer, causing the detection contacts 111 to... 11 contacts the two poles of the current transformer. The small secondary current, which is converted by the current transformer, can be transmitted to the control box 112 and displayed on the display screen of the control box 112 in the form of data to determine whether the current transformer is qualified. After the test is completed, the control conductive rod 109 is reset upward and the tested current transformer is removed from the pulling table 104. Then, the control pull rod 105 and push rod 103 are moved towards the ultrasonic heat sealing machine 101 again to form a complete working cycle.

[0036] like Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, it also includes a feeding mechanism for automatically placing the upper housing 6 onto the lower housing 601. The feeding mechanism includes a material box 3, a lifting slide plate 301, a feeding clamping plate 302, a feeding cylinder 303, and a baffle assembly. The material box 3 is fixedly connected to the pushing platform 102, and an F-shaped bracket is fixedly installed on the base 1 to stabilize the material box 3. The lifting slide plate 301 is slidably connected to the outer wall of the material box 3 in the vertical direction. Two feeding clamping plates 302 are symmetrically slidably connected to the lifting slide plate 301. Two feeding clamps 302 slide horizontally and can extend into the material box 3 to clamp the upper housing 6. Two feeding cylinders 303 are symmetrically fixed on the lifting slide plate 301. The telescopic shaft of the feeding cylinder 303 is fixed to an adjacent feeding clamp 302. A material blocking assembly is installed on the material box 3. The material blocking assembly is used to prevent the upper housing 6 from falling out of the material box 3. The material blocking assembly can release the obstruction of the upper housing 6 in the material box 3 under the action of the feeding clamps 302.

[0037] The upper housing 6 is stacked in the material box 3 in advance, and the material blocking mechanism will prevent the upper housing 6 from falling directly out of the material box 3. After the push rod 103 and pull rod 105 have completed their reset and the current transformer has been moved to be directly below the conductive rod 109, the lower housing 601 is placed below the material box 3. The lower housing 601 is located within the stroke of the push rod 103 and directly below the upper housing 6 in the material box 3. Then, the feeding cylinder 303 is controlled to drive the feeding clamp 302 to clamp the upper housing 6 at the same height in the material box 3. This upper housing 6 is the one at the bottom. Then, the lifting slide plate 301 is controlled to slide down to assemble the clamped upper housing 6 and the lower housing 601 below it together. Then, the feeding cylinder 303 is controlled to drive the feeding clamp 302 to release the clamp on the upper housing 6, and then the lifting slide plate 301 is controlled to reset upward.

[0038] like Figures 6-8 As shown, the baffle assembly includes a baffle plate 4, a first spring 401, and a top plate 402. Two baffle plates 4 are symmetrically slidably connected to the outside of the material box 3 via a bracket. The baffle plates 4 are used to prevent the upper shell 6 inside the material box 3 from falling out. A first spring 401 is sleeved on the guide rod of the baffle plate 4. When the two baffle plates 4 move in opposite directions, the first spring 401 will be compressed. The top plate 402 is fixed to the feeding clamp 302. Both ends of the baffle plate 4 are provided with inclined surfaces. When the feeding clamp 302 clamps the upper shell 6, it will drive the top plate 402 to squeeze the inclined surfaces on the baffle plate 4, so that the baffle plate 4 moves away from the bottom of the material box 3 and no longer prevents the upper shell 6 from falling out.

[0039] When the feeding clamp 302 clamps the upper housing 6, it will drive the top plate 402 to squeeze the baffle plate 4, causing the two baffle plates 4 to move away from below the upper housing 6 so as not to block the upper housing 6 from moving downward out of the material box 3. During the process of the feeding clamp 302 driving the upper housing 6 to move downward out of the material box 3, since the baffle plate 4 has a certain thickness, the top plate 402 will first maintain contact with the baffle plate 4 so that the upper housing 6 can move downward out. Then the baffle plate 4 will reset under the action of the first spring 401 to continue to prevent the upper housing 6 from falling out of the material box 3.

[0040] like Figure 6 and Figure 7 As shown, it also includes a material control mechanism to ensure that the feeding mechanism only takes out one upper shell 6 at a time. The material control mechanism is connected to the feeding clamp 302. The material control mechanism includes a guide rod 5, a second spring 501, and a material control clamp 502. Two guide rods 5 are symmetrically fixed on the feeding clamp 302. A second spring 501 is sleeved on each of the two guide rods 5. The two guide rods 5 on the same feeding clamp 302 are slidably connected to a material control clamp 502. The second spring 501 is located above the material control clamp 502. The material control clamp 502 is slidably connected to the L-shaped bracket on the side wall of the material box 3 in the horizontal direction, so that the material control clamp 502 can only move in the horizontal direction. When the feeding clamp 302 and the material control clamp 502 move away from each other, the second spring 501 will be compressed. The material control clamp 502 can extend into the material box 3 to clamp the upper shell 6 of the same height.

[0041] When the feeding clamp 302 clamps the upper housing 6, it drives the material control clamp 502 through the guide rod 5, so that the material control clamp 502 clamps the second upper housing 6 from bottom to top. Since the material control clamp 502 cannot move downward, the second spring 501 will be compressed during the process of the feeding clamp 302 conveying the upper housing 6 downward, and the material control clamp 502 will keep clamping the upper housing 6 to prevent the stacked upper housings 6 in the material box 3 from falling out together. When the feeding clamp 302 releases the clamp on the upper housing 6, it will drive the two material control clamps 502 to move in opposite directions through the guide rod 5. At this time, the baffle plate 4 has completed its reset, so that the upper housing 6 above can fall onto the baffle plate 4 for the feeding clamp 302 to pick up.

[0042] Example 2: Based on Example 1, such as Figure 5 and Figure 6As shown in the figure, it further includes a pushing mechanism for pushing the lower housing 601. The pushing mechanism is connected to the material box 3. The pushing mechanism includes a pushing rod 703 and a pushing stopper 702. There are two cavities with different lengths in the material box 3. One of the cavities with a shorter length is used for stacking the upper housing 6, and the other cavity with a longer length is used for stacking the lower housing 601. And the height of the cavity with a shorter length is higher than that of the cavity with a longer length, so as to push the lower housing 601 under the upper housing 6. The pushing rod 703 is slidably connected to the pushing platform 102 along the horizontal direction through a bracket. The direction in which the pushing rod 703 slides is perpendicular to the direction in which the pushing rod 103 slides. The pushing rod 703 is slidably connected to the material box 3. The pushing rod 703 is used to push the lowermost lower housing 601 in the material box 3 to directly below another cavity, so that the feeding mechanism can dock the upper housing 6 and the lower housing 601 together. The pushing stopper 702 is fixedly connected to the pushing platform 102. The pushing stopper 702 and the pushing rod 703 cooperate to position the lower housing 601.

[0043] During the process of the feeding clamping plate 302 driving the upper housing 6 to move downward, control the pushing rod 703 to push the lowermost lower housing 601 in the material box 3 towards the direction of the pushing stopper 702. The cooperation of the pushing rod 703 and the pushing stopper 702 can play a positioning role, so that the lower housing 601 can just move directly below the upper housing 6.

[0044] As Figure 5 and Figure 6 As shown in the figure, the pushing mechanism further includes a transmission guide frame 7 and a transmission frame 701. The transmission guide frame 7 is fixedly connected to the lifting slide plate 301. A '丿'-shaped slideway is provided on the transmission guide frame 7. The transmission frame 701 is fixedly connected to the pushing rod 703. The upper side of the transmission frame 701 is slidably connected in the slideway on the transmission guide frame 7. When the lifting slide plate 301 moves downward, the transmission frame 701 will drive the pushing rod 703 to extend into the material box 3 under the guiding action of the slideway.

[0045] The lifting slide plate 301 and the transmission guide frame 7 will move downward synchronously. The slideway on the transmission guide frame 7 consists of two sections. One section is inclined, so that the transmission guide frame 7 can drive the pushing rod 703 into the material box 3 through the transmission frame 701. The other section is vertical, so that the pushing rod 703 will no longer move after pushing the lower housing 601 to the set position, while the lifting slide plate 301 can continue to move downward to assemble the upper housing 6 and the lower housing 601 together.

[0046] As Figure 2As shown, it also includes a drive mechanism for driving the lifting slide plate 301 and the conductive rod 109 to lift. The drive mechanism is mounted on the base 1 and includes a drive plate 8, a main cylinder 801 and a drive bracket 802. The drive bracket 802 is fixedly connected to the base 1. The drive plate 8 is slidably connected to the drive bracket 802 in the vertical direction. The drive plate 8 is U-shaped. The main cylinder 801 is fixedly connected to the top of the drive bracket 802. The telescopic shaft of the main cylinder 801 is fixedly connected to the top of the drive plate 8. The upper end of the conductive rod 109 is fixedly connected to the drive plate 8. In order to avoid the drive plate 8 from interfering with the circuit, an insulating material is used to isolate the conductive rod 109 and the drive plate 8. The top of the transmission guide frame 7 is also fixedly connected to the drive plate 8.

[0047] When the main cylinder 801 extends or retracts, it drives the drive plate 8 to move in the vertical direction, thereby driving the conductive rod 109, the transmission guide frame 7 and the lifting slide plate 301 to move synchronously.

[0048] Example 3: Based on Example 2, such as Figure 2 and Figure 9 As shown, it also includes a support mechanism for automatically unloading the current transformer after testing. The support mechanism is connected to the feeding table 104. The support mechanism includes a feeding plate 907, a positioning block 908, and a feeding stop block 909. The feeding table 104 has a through-hole type slide rail, through which the current transformer can fall from the feeding table 104. The feeding plate 907 is slidably connected in the slide rail. The positioning block 908 is fixed on the feeding plate 907. The positioning block 908 is used to prevent the current transformer from moving so that the detection contact rod 111 can dock. Two feeding stops 909 are fixed on the feeding table 104. One half of the feeding stop block 909 is fixed on the feeding table 104, and the other half is in contact with the top of the feeding plate 907. The feeding stop block 909 is used to prevent the current transformer from falling from the feeding plate 907.

[0049] When the pull rod 105 and pneumatic gripper 106 move the current transformer to a position where its two poles are directly opposite the two detection contacts 111, the current transformer is located above the slide opening on the pull table 104. First, stop the pull rod 105 from moving, then control the unloading plate 907 to move closer to the pneumatic slide plate 110. The unloading plate 907 will support the current transformer from below. Then, control the pneumatic gripper 106 to release the clamp and allow the pull rod 105 to continue resetting. During the docking process between the detection contacts 111 and the two poles of the current transformer, the positioning block 908 can restrict the movement of the current transformer to facilitate full docking. After the detection is completed, control the unloading plate 907 to reset. However, the current transformer cannot follow the unloading plate 907 due to the action of the unloading stop block 909, causing the current transformer to fall onto the base 1 through the slide opening on the pull table 104. The operator can set a guide plate below to allow the current transformer to flow out.

[0050] like Figure 2 and Figure 9 As shown, the supporting mechanism also includes a torsion bar 9, a torsion spring 901, a telescopic rod 902, a No. 3 spring 903, a hinge rod 904, a fixing block 905, and a lever 906. The torsion bar 9 is rotatably connected to the drive bracket 802. The torsion bar 9 is L-shaped. A torsion spring 901 is sleeved on the rotating shaft of the torsion bar 9. One end of the torsion spring 901 is fixed to the torsion bar 9, and the other end of the torsion spring 901 is fixed to the drive bracket 802. When the torsion bar 9 is in a vertical state, the torsion spring 901 is in a stored state, and the inside of the torsion bar 9 slides axially. A telescopic rod 902 is connected, which can retract into the torsion rod 9. A No. 3 spring 903 is sleeved on the telescopic rod 902. A hinge rod 904 is fixedly connected to the end of the telescopic rod 902 away from the torsion rod 9. The end of the hinge rod 904 away from the torsion rod 9 is rotatably connected to the feed plate 907. A fixed block 905 is fixedly connected to the drive plate 8. Two levers 906 are symmetrically fixed to the fixed block 905. When the levers 906 move upward, they will squeeze the torsion rod 9 to make it rotate and reset, thereby driving the feed plate 907 to slide.

[0051] In the diagram, the torsion spring 901 is in a charged state. When the drive plate 8 moves downward, it will drive the fixed block 905 and the lever 906 to move downward. Then, the torsion spring 901 will drive the torsion rod 9 to rotate, thereby driving the unloading plate 907 to move towards the pneumatic slide plate 110 to support the current transformer. During the upward movement of the drive plate 8, the lever 906 will squeeze the torsion rod 9, thereby driving the unloading plate 907 to reset so that the current transformer falls down, and the torsion spring 901 will be charged.

[0052] like Figure 2 , Figure 3 and Figure 5 As shown, it also includes an electric slide table for driving the push rod 103 and the pull rod 105. The electric slide table structure includes a lead screw 2, an internal thread plate 201 and a motor 202. The pull table 104 and the push table 102 are rotatably connected to the lead screw 2. The lead screw 2 has two symmetrically opened threads, and each thread is threaded with an internal thread plate 201. When the lead screw 2 rotates, it will drive the two internal thread plates 201 to move synchronously in opposite directions or relative to each other. One internal thread plate 201 is fixedly connected to the pull rod 105, and the other internal thread plate 201 is fixedly connected to the push rod 103. The motor 202 is fixedly connected to the push table 102, and the output shaft of the motor 202 is fixedly connected to the lead screw 2.

[0053] The motor 202 drives the lead screw 2 to rotate, which enables the internal thread plate 201 to drive the push rod 103 and the pull rod 105 to move synchronously in opposite directions.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A testing device for the production of electricity metering devices, comprising a base (1), an ultrasonic heat sealer (101), and a control box (112), characterized in that, It also includes a pusher platform (102), a pusher rod (103), a puller platform (104), a puller rod (105), a pneumatic gripper (106), a support frame (107), a conductive cylinder (108), a conductive rod (109), a pneumatic slide plate (110), and a detection contact rod (111). An ultrasonic heat sealing machine (101), a pusher platform (102), and a puller platform (104) are fixedly connected to the base (1). A pusher rod (103) for pushing current transformers onto the ultrasonic heat sealing machine (101) is slidably connected to the pusher platform (102). A puller rod (105) is slidably connected to the puller platform (104). The puller rod (105) is used to pull the welded current transformers onto the puller platform (104) for testing. A pneumatic gripper (106) is slidably connected to the puller rod (105). A support frame (107) is connected to the puller platform (108). 7) A conductive cylinder (108) is fixedly connected. The two conductive cylinders (108) correspond to the positive and negative poles of the circuit respectively. A conductive rod (109) is inserted inside the conductive cylinder (108). A pneumatic slide plate (110) is slidably connected on the pusher table (102). Two detection rods (111) are fixedly connected on the pneumatic slide plate (110). The detection rods (111) are used to connect with the positive and negative poles of the current transformer. A control box (112) is set on the base (1). The control box (112) can provide a large current for one circuit and can also detect the value of another small current circuit. The conductive cylinder (108), the conductive rod (109) and the control box (112) form one circuit. The detection rods (111), the current transformer and the control box (112) form another circuit. The control box (112) can identify the current value of the circuit to determine whether the current transformer is qualified. It also includes a feeding mechanism for automatically placing the upper shell (6) onto the lower shell (601). The feeding mechanism includes a material box (3), a lifting slide plate (301), a feeding clamp plate (302), a feeding cylinder (303), and a baffle assembly. The material box (3) is fixedly connected to the push platform (102). The lifting slide plate (301) is slidably connected to the material box (3). The feeding clamp plate (302) is slidably connected to the lifting slide plate (301). The feeding clamp plate (302) is used to clamp the upper shell (6) inside the material box (3). The feeding cylinder (303) for driving the feeding clamp plate (302) is fixedly connected to the lifting slide plate (301). A baffle assembly is installed on the material box (3). The baffle assembly is used to prevent the upper shell (6) inside the material box (3) from falling out. It also includes a drive mechanism for driving the lifting slide (301) and the conductive rod (109) to rise and fall. The drive mechanism is mounted on the base (1). The drive mechanism includes a drive plate (8), a main cylinder (801) and a drive bracket (802). The drive bracket (802) is fixedly connected to the base (1). The drive plate (8) is slidably connected to the drive bracket (802). The main cylinder (801) for controlling the rise and fall of the drive plate (8) is fixedly connected to the drive bracket (802). The conductive rod (109) is fixedly connected to the drive plate (8).

2. The testing device for the production of an electricity metering device according to claim 1, characterized in that, The baffle assembly includes a baffle plate (4), a first spring (401) and a top plate (402). The baffle plate (4) is slidably connected to the material box (3). The first spring (401) is sleeved on the baffle plate (4). The top plate (402) is fixedly connected to the feeding clamp plate (302). The top plate (402) and the baffle plate (4) are pressed together so that the baffle plate (4) no longer prevents the upper shell (6) from falling out.

3. The testing device for the production of an electricity metering device according to claim 1, characterized in that, It also includes a material control mechanism for ensuring that the feeding mechanism takes out only one upper shell (6) at a time. The material control mechanism is connected to the feeding clamp (302). The material control mechanism includes a guide rod (5), a second spring (501), and a material control clamp (502). The material control clamp (502) is slidably connected to the feeding clamp (302) via the guide rod (5). The guide rod (5) is fitted with a second spring (501), and the material control clamp (502) is slidably connected to the material box (3) in the horizontal direction. The material control clamp (502) is used to clamp the upper shell (6) of the same height in the material box (3).

4. The testing device for the production of an electricity metering device according to claim 1, characterized in that, It also includes a pushing mechanism for pushing the lower housing (601), the pushing mechanism is connected to the material box (3), the pushing mechanism includes a pushing rod (703) and a pushing block (702), the material box (3) has two cavities of different lengths, which are used to stack the upper housing (6) and the lower housing (601) respectively, the pushing platform (102) is slidably connected to the pushing rod (703), the pushing rod (703) is used to push the lower housing (601) at the bottom to the bottom of the other cavity, and the pushing platform (102) is fixedly connected to the pushing block (702) for positioning the lower housing (601).

5. The testing device for the production of an electricity metering device according to claim 4, characterized in that, The pushing mechanism also includes a transmission guide frame (7) and a transmission frame (701). The transmission guide frame (7) is fixedly connected to the lifting slide plate (301), and the transmission frame (701) is fixedly connected to the pushing rod (703). The upper side of the transmission frame (701) is slidably connected to the slide rail on the transmission guide frame (7). When the lifting slide plate (301) moves, the transmission frame (701) will drive the pushing rod (703) to move under the action of the transmission guide frame (7).

6. The testing device for the production of an electricity metering device according to claim 5, characterized in that, The transmission guide frame (7) is fixed to the drive plate (8).

7. A testing device for the production of an electricity metering device according to claim 6, characterized in that, It also includes a support mechanism for automatically unloading the current transformer after testing. The support mechanism is connected to the feeding platform (104). The support mechanism includes a feeding plate (907), a positioning block (908), and a feeding stop block (909). The feeding plate (907) is slidably connected to the feeding platform (104). The positioning block (908) for blocking the movement of the current transformer is fixed on the feeding plate (907). The feeding stop block (909) for pushing the current transformer off the feeding plate (907) is fixed on the feeding platform (104). The feeding platform (104) has a through hole that allows the current transformer to fall onto the base (1).

8. The testing device for the production of an electricity metering device according to claim 7, characterized in that, The supporting mechanism also includes a torsion bar (9), a torsion spring (901), a telescopic bar (902), a No. 3 spring (903), a hinge bar (904), a fixing block (905), and a lever (906). The torsion bar (9) is rotatably connected to the drive bracket (802). A torsion spring (901) is connected between the torsion bar (9) and the drive bracket (802). A telescopic bar (902) is slidably connected to the torsion bar (9). A No. 3 spring (903) is sleeved on the telescopic bar (902). The telescopic bar (902) is rotatably connected to the feed plate (907) through the hinge bar (904). A lever (906) is fixedly connected to the drive plate (8) through the fixing block (905). The lever (906) and the torsion bar (9) are pressed together to drive the rotation, thereby driving the feed plate (907) to slide.

9. A testing device for the production of an electricity metering device according to claim 1, characterized in that, It also includes an electric slide table for driving the push rod (103) and the pull rod (105). The electric slide table structure includes a lead screw (2), an internal thread plate (201) and a motor (202). The pull table (104) and the push table (102) are rotatably connected to the lead screw (2). The lead screw (2) is threadedly connected to the internal thread plate (201). When the lead screw (2) rotates, it will drive the two internal thread plates (201) to move synchronously in opposite directions. One internal thread plate (201) is fixedly connected to the pull rod (105), and the other internal thread plate (201) is fixedly connected to the push rod (103). The push table (102) is fixedly connected to the motor (202) for driving the lead screw (2) to rotate.

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