CN108562816B - PDU checking equipment and working method thereof - Google Patents
PDU checking equipment and working method thereof Download PDFInfo
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- CN108562816B CN108562816B CN201810731251.5A CN201810731251A CN108562816B CN 108562816 B CN108562816 B CN 108562816B CN 201810731251 A CN201810731251 A CN 201810731251A CN 108562816 B CN108562816 B CN 108562816B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses PDU (protocol data unit) inspection equipment, which comprises a die tooling, wherein the bottom of the die tooling is fixedly connected with a motion servo unit, the top end of the motion servo unit penetrates through the die tooling and extends into the die tooling, the top end of the motion servo unit is fixedly connected with a storage plate, the upper side and the lower side of the storage plate are fixedly connected with fixed discs through bolts, and one side, opposite to each fixed disc, of each fixed disc is fixedly connected with a first fixed sleeve and a second fixed sleeve from top to bottom, so that the PDU inspection equipment relates to the technical field of inspection equipment. This PDU check out test set through setting up first fixed cover and the fixed cover of second, can be convenient for install the sliding sleeve, and the screw thread cover can make first fixed cover and the fixed cover of second with the sliding sleeve chucking, after the fixed dish of reuse bolt fastening, alright firmly fasten the sliding sleeve, can avoid the sliding sleeve to rock, and sliding sleeve convenient to detach can regularly change, and then can avoid the stability of work after the sliding sleeve wearing and tearing, has kept the stability when putting the thing board and going up and down.
Description
Technical Field
The invention relates to the technical field of checking equipment, in particular to PDU checking equipment and a working method thereof.
Background
The distribution box is a massive parameter on data, generally forms a low-voltage forest according to electric wiring, and requires that switch equipment, a measuring instrument, protection electrical appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or on a screen, so as to form the low-voltage distribution box. The circuit can be switched on or off by means of a manual or automatic switch during normal operation. The distribution box has the characteristics of small volume, simple and convenient installation, special technical performance, fixed position, unique configuration function, no limit of sites, more common application, stable and reliable operation, high space utilization rate, small occupied area and environmental protection effect. The purpose of the distribution box is as follows: and the electric energy is reasonably distributed, so that the opening and closing operation of the circuit is convenient. The circuit has higher safety protection level and can intuitively display the conduction state of the circuit.
Some detection device for block terminal now adopts the elevating platform to transport the work piece to different detection positions, utilizes electric telescopic handle etc. to push, and the elevating platform leads through the guide pillar, but after long-time work, can make the interval increase between elevating platform internal surface and the guide pillar because of wearing and tearing, and then can lead to the elevating platform work unstable, appears tiny crooked phenomenon, can influence the grafting of some plugs, and then influence the detection.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides PDU checking equipment and a working method thereof, which solve the problems that after long-time working, the distance between the inner surface of a lifting platform and a guide post is increased due to abrasion, so that the lifting platform works unstably, the plugging of some plugs is influenced, and the detection is influenced.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a PDU check out test set, includes the mould frock, the bottom fixedly connected with motion servo unit of mould frock, the top of motion servo unit runs through the inside of mould frock and extends to the mould frock, and the top fixedly connected with of motion servo unit put the thing board, put the upper and lower both sides of thing board and all be connected with the fixed disk through the bolt fixedly, two the fixed cover of first fixed cover of one side from the top down of fixed disk fixedly connected with respectively and second, the top fixedly connected with thread bush of second, and the surface of thread bush and the internal surface threaded connection of first fixed cover, the standing groove with the sliding sleeve looks adaptation is all offered to the inside of first fixed cover, thread bush and the inside of second fixed cover, the bottom fixedly connected with linear slide rail guide pillar of mould frock internal surface, the both sides from the bottom up of mould frock all are fixedly connected with cylinder and plug motion servo unit in proper order.
Preferably, one side of the top end of the linear slide rail guide post penetrates through the fixed disc, the second fixed sleeve, the sliding sleeve and the first fixed sleeve and extends to the upper portion of the object placing plate.
Preferably, one end of the cylinder penetrates through the air inlet pipe, a piston is connected inside the cylinder in a sliding mode, one side, away from the air inlet pipe, of the piston is communicated with a push rod, and one end of the push rod penetrates through the cylinder and the die tooling in sequence and extends to the inside of the die tooling.
Preferably, a groove is formed in one side, close to the air inlet pipe, of the piston, an air inlet head is communicated with the inner surface of the groove, and vent holes are formed in the piston and the inside of the push rod.
Preferably, one end of the push rod located inside the die tool is communicated with a connecting pipe, one end of the connecting pipe is communicated with elastic sealant, a check ring is fixedly connected with one end of the surface of the push rod, a spring is fixedly connected between the connecting pipe and the check ring, and the spring is sleeved on the surface of the connecting pipe.
Preferably, one end of the plug motion servo unit penetrates through the die tooling and extends to the inside of the die tooling, and one end of the plug motion servo unit is rotatably connected with a floating error-making plug.
Preferably, the top of putting the thing board is provided with the work piece, the top of putting the thing board just is located the equal fixedly connected with supporting seat of both sides of work piece, two the equal fixedly connected with electric telescopic handle of one side that the supporting seat is relative, the one end fixedly connected with splint of electric telescopic handle, and one side fixedly connected with anti-skidding cushion of splint.
Preferably, the working method of the PDU checking device specifically includes the following steps:
step one, connect the device with control system, put the work piece on putting the thing board, adjust the work piece position, a key starts electric telescopic handle, electric telescopic handle drives splint removal, press from both sides the work piece tightly, then start the motion servo unit, the motion servo unit extension, will put thing board and work piece and jack-up upwards, make the work piece remove to cylinder horizontal position on, start the air pump and aerify for the cylinder, the internal atmospheric pressure of cylinder increases, promote the piston slip, and then utilize the push rod to promote the elastic seal glue, make its air inlet and the gas outlet of laminating work piece, the internal atmospheric pressure of cylinder continues to increase, the air then can get into the air inlet head, in entering the work piece through air vent, connecting pipe and elastic seal glue, and then the gas tightness of detectable work piece.
And step two, after the air tightness detection is finished, releasing air in the air cylinder to enable the push rod to retract, then controlling the motion servo unit to work again, pushing the object placing plate and the workpiece upwards to the horizontal position of the air cylinder, then starting the plug motion servo unit, pushing the floating error-prone plug to the surface of the workpiece by the plug motion servo unit, plugging the floating error-prone plug to the surface of the workpiece, detecting anti-plugging and other items of the workpiece, and resetting all electric appliances after the detection is finished.
And step three, regularly taking down the object placing plate, removing the bolts, reversely rotating the two fixing plates to separate the two fixing plates, taking down the two fixing plates, the first fixing sleeve and the second fixing sleeve, taking out the inner sliding sleeve, replacing the sliding sleeve with a new sliding sleeve, reversely operating and installing the two fixing plates, the first fixing sleeve and the second fixing sleeve, and sleeving the object placing plate back to the surface of the linear slide rail guide post.
(III) beneficial effects
The invention provides PDU checking equipment and a working method thereof. The beneficial effects are as follows:
(1) According to the PDU checking equipment and the working method thereof, the fixing plates are fixedly connected to the upper side and the lower side of the object placing plate through the bolts, the first fixing sleeve and the second fixing sleeve are fixedly connected to the opposite sides of the two fixing plates from top to bottom respectively, the threaded sleeve is fixedly connected to the top of the second fixing sleeve, the surface of the threaded sleeve is in threaded connection with the inner surface of the first fixing sleeve, the sliding sleeves are clamped in the first fixing sleeve, the threaded sleeve and the second fixing sleeve, the first fixing sleeve and the second fixing sleeve are provided with the placing grooves matched with the sliding sleeves, the bottom of the inner surface of the die tool is fixedly connected with the linear slide rail guide posts, the sliding sleeves can be conveniently installed through the first fixing sleeve and the second fixing sleeve, the sliding sleeves can be clamped tightly by the threaded sleeve through the first fixing sleeve and the second fixing sleeve, the sliding sleeves can be firmly fastened through the bolts after the fixing plates, the sliding sleeves can be prevented from shaking, the sliding sleeves are convenient to detach, the working stability after the sliding sleeves can be regularly replaced, and the abrasion of the object placing plate is maintained during lifting.
(2) According to the PDU checking equipment and the working method thereof, the piston is connected in the cylinder in a sliding manner, the push rod is communicated with one side, far away from the air inlet pipe, of the piston, the groove is formed in one side, close to the air inlet pipe, of the piston, the air inlet head is communicated with the inner surface of the groove, vent holes are formed in the piston and the inside of the push rod, the piston and the groove are matched, the protruding air inlet head is arranged in the center of the groove, so that air pressure in the cylinder pushes the piston to move first and then can be discharged through the air inlet head, the push rod pushes the elastic sealant to press the air inlet and the air outlet of a workpiece, then the workpiece can be directly inflated, two devices do not need to be respectively pressed and inflated, and the PDU is convenient to use.
(3) According to the PDU checking equipment and the working method thereof, the connecting pipe is communicated with one end of the push rod, which is positioned in the die tool, one end of the connecting pipe is communicated with the elastic sealant, the check ring is fixedly connected with one end of the surface of the push rod, the spring is fixedly connected between the connecting pipe and the check ring, the spring is sleeved on the surface of the connecting pipe, the workpiece can be prevented from being damaged due to overlarge pressure by arranging the spring and the elastic sealant which is elastic in the same way, the elastic sealant can be kept to be clung to the workpiece, and the elasticity characteristic of the elastic sealant can keep tightness and prevent air leakage.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of the motorized telescopic rod and clamping plate arrangement of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is a schematic view showing the internal structures of the first and second fixing sleeves according to the present invention;
FIG. 5 is a cross-sectional view of the piston of the present invention;
FIG. 6 is a top view of the holding pan structure of the present invention;
fig. 7 is an enlarged view of a portion of fig. 1 a of the present invention.
In the figure, 1-mould frock, 2-motion servo unit, 3-put thing board, 4-fixed disk, 5-first fixed cover, 6-second fixed cover, 7-thread bush, 8-sliding sleeve, 9-linear slide guide pillar, 10-cylinder, 11-plug motion servo unit, 12-intake pipe, 13-piston, 14-push rod, 15-recess, 16-air inlet head, 17-air vent, 18-connecting pipe, 19-elasticity sealant, 20-retaining ring, 21-spring, 22-unsteady plug that makes mistakes, 23-work piece, 24-supporting seat, 25-electric telescopic handle, 26-splint.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the embodiment of the present invention provides a technical solution: the utility model provides a PDU check out test set, including mould frock 1, the bottom fixedly connected with motion servo unit 2 of mould frock 1, motion servo unit 2 and plug motion servo unit 11 are the same with the nature of telescopic link, scalable work, the top of motion servo unit 2 runs through mould frock 1 and extends to the inside of mould frock 1, and the top fixedly connected with of motion servo unit 2 puts thing board 3, the top of putting thing board 3 is provided with work piece 23, the top of putting thing board 3 just is located the equal fixedly connected with supporting seat 24 of both sides of work piece 23, the equal fixedly connected with electric telescopic handle 25 of one side that two supporting seats 24 are relative, the one end fixedly connected with splint 26, and one side fixedly connected with anti-skidding cushion of splint 26, the upper and lower both sides of putting thing board 3 all are through bolt fixedly connected with fixed disk 4, the top down fixedly connected with first fixed sleeve 5 and second fixed sleeve 6 of one side opposite to two fixed disk 4, the top fixedly connected with thread bush 7 of second fixed sleeve 6, and the surface of thread bush 7 and the internal surface connection of first fixed sleeve 5, first fixed sleeve 7 and second fixed sleeve 5 are fixed with the inside diameter sleeve 8, can be fixed with the first fixed sleeve 8 through the first fixed sleeve 8, the fixed slot 9 is fixed with the inside diameter sleeve 8, the fixed sleeve 8 is fixed with the fixed sleeve 8, the inside diameter sleeve 8 is fixed with the fixed sleeve 8, the fixed sleeve is fixed with the slide rail 8 through the first fixed sleeve 8, can avoid the sliding sleeve 8 to shake, the sliding sleeve 8 is convenient to detach, can be replaced regularly, and further can avoid the stability of working after the sliding sleeve 8 is worn, the stability of the lifting of the object placing plate 3 is maintained, one side of the top end of the linear sliding rail guide post 9 penetrates through the fixed disc 4, the second fixed sleeve 6, the sliding sleeve 8 and the first fixed sleeve 5 and extends to the upper part of the object placing plate 3, the two sides of the die tooling 1 are sequentially and fixedly connected with the air cylinder 10 and the plug motion servo unit 11 from bottom to top, one end of the plug motion servo unit 11 penetrates through the die tooling 1 and extends to the inside of the die tooling 1, one end of the plug motion servo unit 11 is rotationally connected with the floating error plug 22, one end of the air cylinder 10 penetrates through the air inlet pipe 12, the inside of the air cylinder 10 is slidingly connected with the piston 13, one side of the piston 13 close to the air inlet pipe 12 is provided with the groove 15, the inner surface of the groove 15 is communicated with the air inlet head 16, the piston 13 and the push rod 14 are provided with vent holes 17, the piston 13 and the groove 15 are matched, the center of the groove 15 is provided with a raised air inlet head 16, so that air pressure in the air cylinder 10 pushes the piston 13 to move firstly, then the air can be discharged through the air inlet head 16, the push rod 14 pushes the elastic sealant 19 to press an air inlet and an air outlet of a workpiece 23, then the workpiece 23 can be directly inflated without arranging two devices to respectively press and inflate, the use is convenient, one side of the piston 13 away from the air inlet pipe 12 is communicated with the push rod 14, one end of the push rod 14 positioned in the die tooling 1 is communicated with a connecting pipe 18, one end of the connecting pipe 18 is communicated with the elastic sealant 19, one end of the surface of the push rod 14 is fixedly connected with a retainer ring 20, a spring 21 is fixedly connected between the connecting pipe 18 and the retainer ring 20, the spring 21 is sleeved on the surface of the connecting pipe 18, by arranging the spring 21 and the elastic sealant 19 with elasticity as well, the workpiece 23 can be prevented from being damaged due to overlarge pressure, the elastic sealant 19 can be kept to be clung to the workpiece 23, the elasticity characteristic of the elastic sealant 19 can be kept airtight, air leakage is prevented, and one end of the push rod 14 sequentially penetrates through the cylinder 10 and the die tooling 1 and extends to the inside of the die tooling 1.
The invention also discloses a working method of the PDU checking equipment, which comprises the following steps:
step one, connecting the device with a control system, placing a workpiece 23 on a placing plate 3, adjusting the position of the workpiece 23, starting an electric telescopic rod 25 by one key, driving a clamping plate 26 to move by the electric telescopic rod 25, clamping the workpiece 23, starting a motion servo unit 2, extending the motion servo unit 2, lifting the placing plate 3 and the workpiece 23 upwards, enabling the workpiece 23 to move to the horizontal position of a cylinder 10, starting an air pump to charge the cylinder 10, increasing the air pressure in the cylinder 10, pushing a piston 13 to slide, pushing an elastic sealant 19 by a push rod 14, enabling the elastic sealant to be attached to an air inlet and an air outlet of the workpiece 23, continuously increasing the air pressure in the cylinder 10, enabling the air to enter an air inlet head 16, and enabling the air to enter the workpiece 23 through an air hole 17, a connecting pipe 18 and the elastic sealant 19, so that the air tightness of the workpiece 23 can be detected.
And step two, after the air tightness detection is finished, releasing air in the air cylinder 10 to retract the push rod 14, then controlling the motion servo unit 2 to work again, pushing the object placing plate 3 and the workpiece 23 upwards to the horizontal position of the air cylinder 10, then starting the plug motion servo unit 11, pushing the floating error-prone plug 22 to the surface of the workpiece 23 by the plug motion servo unit 11, splicing with a wiring port of the workpiece 23, detecting anti-plugging and other items of the workpiece, and resetting all electric appliances after the detection is finished.
And thirdly, regularly taking down the object placing plate 3, removing bolts, reversely rotating the two fixing plates 4 to separate the two fixing plates, taking down the two fixing plates 4, the first fixing sleeve 5 and the second fixing sleeve 6, taking out the inner sliding sleeve 8, replacing the sliding sleeve 8 with a new sliding sleeve 8, reversely operating and installing the two fixing plates 4, the first fixing sleeve 5 and the second fixing sleeve 6, and sleeving the object placing plate 3 back to the surface of the linear slide guide post 9.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. PDU check-out set includes mould frock (1), its characterized in that: the bottom fixedly connected with motion servo unit (2) of mould frock (1), the top of motion servo unit (2) runs through mould frock (1) and extends to the inside of mould frock (1), and the top fixedly connected with of motion servo unit (2) put thing board (3), put thing board (3) upper and lower both sides all through bolt fixedly connected with fixed disk (4), two the relative one side from the top down of fixed disk (4) respectively fixedly connected with first fixed cover (5) and second fixed cover (6), the top fixedly connected with thread bush (7) of second fixed cover (6), and the surface of thread bush (7) and the internal surface threaded connection of first fixed cover (5), the inside equal joint of first fixed cover (5), thread bush (7) and second fixed cover (6) has sliding sleeve (8), and the inside of first fixed cover (5) and second fixed cover (6) all offered the standing groove with sliding sleeve (8) looks adaptation, the top fixedly connected with thread bush (7) of die frock (1) and the interior surface of die frock (1) is connected with linear slide rail (10) in proper order on the die frock (10), one end of the plug motion servo unit (11) penetrates through the die tooling (1) and extends to the inside of the die tooling (1), and one end of the plug motion servo unit (11) is rotatably connected with a floating error-making plug (22).
2. A PDU inspection device as claimed in claim 1, wherein: one side of the top end of the linear slide rail guide post (9) penetrates through the fixed disc (4), the second fixed sleeve (6), the sliding sleeve (8) and the first fixed sleeve (5) and extends to the upper part of the object placing plate (3).
3. A PDU checking apparatus according to claim 2, wherein: one end of cylinder (10) runs through has intake pipe (12), the inside sliding connection of cylinder (10) has piston (13), one side intercommunication that intake pipe (12) were kept away from to piston (13) has push rod (14), the one end of push rod (14) runs through cylinder (10) and mould frock (1) in proper order and extends to the inside of mould frock (1).
4. A PDU checking apparatus according to claim 3, wherein: a groove (15) is formed in one side, close to the air inlet pipe (12), of the piston (13), an air inlet head (16) is communicated with the inner surface of the groove (15), and vent holes (17) are formed in the piston (13) and the push rod (14).
5. The PDU checking apparatus as set forth in claim 4, wherein: the utility model discloses a mould frock, including push rod (14), connecting pipe (18) are located inside one end intercommunication of mould frock (1), the one end intercommunication of connecting pipe (18) has elastic sealant (19), the one end fixedly connected with retaining ring (20) on push rod (14) surface, fixedly connected with spring (21) between connecting pipe (18) and retaining ring (20), and spring (21) cover is established on the surface of connecting pipe (18).
6. The PDU checking apparatus as set forth in claim 5, wherein: the top of putting thing board (3) is provided with work piece (23), the top of putting thing board (3) and be located the equal fixedly connected with supporting seat (24) of both sides of work piece (23), two equal fixedly connected with electric telescopic handle (25) of one side that supporting seat (24) are relative, the one end fixedly connected with splint (26) of electric telescopic handle (25), and one side fixedly connected with anti-skidding cushion of splint (26).
7. The method of operation of a PDU inspection device of claim 6, wherein: the method specifically comprises the following steps:
step one, connecting a device with a control system, placing a workpiece (23) on a storage plate (3), adjusting the position of the workpiece (23), starting an electric telescopic rod (25) by one key, driving a clamping plate (26) to move by the electric telescopic rod (25), clamping the workpiece (23), starting a motion servo unit (2), extending the motion servo unit (2), lifting the storage plate (3) and the workpiece (23) upwards, enabling the workpiece (23) to move to the horizontal position of a cylinder (10), starting an air pump to inflate the cylinder (10), increasing the air pressure in the cylinder (10), pushing a piston (13) to slide, pushing an elastic sealant (19) by utilizing a push rod (14), enabling the elastic sealant to be attached to an air inlet and an air outlet of the workpiece (23), continuously increasing the air pressure in the cylinder (10), enabling the air to enter an air inlet head (16), and further detecting the air tightness of the workpiece (23) by a vent hole (17), a connecting pipe (18) and the elastic sealant (19);
step two, after the air tightness detection is finished, releasing air in the air cylinder (10), retracting the push rod (14), then controlling the motion servo unit (2) to work again, pushing the object placing plate (3) and the workpiece (23) upwards to the horizontal position of the air cylinder (10), then starting the plug motion servo unit (11), pushing the floating error-prone plug (22) to the surface of the workpiece (23) by the plug motion servo unit (11), inserting the floating error-prone plug into a wiring port of the workpiece (23), detecting anti-insertion and other items of the workpiece, and resetting all electric appliances after the detection is finished;
step three, regularly taking down the object placing plate (3) and removing the bolts, reversely rotating the two fixing plates (4) to separate the two fixing plates, taking down the two fixing plates (4), the first fixing sleeve (5) and the second fixing sleeve (6), taking out the inner sliding sleeve (8), replacing the sliding sleeve with the new sliding sleeve (8), reversely operating and installing the two fixing plates (4), the first fixing sleeve (5) and the second fixing sleeve (6) back, and sleeving the object placing plate (3) back to the surface of the linear sliding rail guide post (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731251.5A CN108562816B (en) | 2018-07-05 | 2018-07-05 | PDU checking equipment and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810731251.5A CN108562816B (en) | 2018-07-05 | 2018-07-05 | PDU checking equipment and working method thereof |
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| CN108562816A CN108562816A (en) | 2018-09-21 |
| CN108562816B true CN108562816B (en) | 2023-10-13 |
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Families Citing this family (2)
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| CN111208322A (en) * | 2018-11-22 | 2020-05-29 | 国网新疆综合能源服务有限公司 | Automatic positioning and crimping device for intelligent electric energy meter wiring terminal |
| CN115648660B (en) * | 2022-10-22 | 2023-12-05 | 江苏久山建筑材料有限公司 | Carbon fiber straw alumina furniture forming die and preparation process |
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