Tray jacking and rotating device for terminal electric energy meter detection line

Abstract

The invention discloses a tray jacking and rotating device for a terminal electric energy meter detection line, which can position and support an electric energy meter tray, can lift the electric energy meter tray and a to-be-detected electric energy meter to a set height together, and can enable a terminal of the to-be-detected electric energy meter to face a corresponding electric energy meter crimping mechanism in a rotating manner, so that the terminal of the to-be-detected electric energy meter can be accurately positioned. The device is high in overall detection efficiency and good in adaptability, and has the capability of detecting various electric energy meters. The main structure comprises a lower mounting plate, a lifting air cylinder, a swing cylinder fixing plate, a rotating air cylinder and a rotating plate, two tray supporting and positioning columns are arranged at the top of the rotating plate, one tray supporting and positioning column comprises a tray supporting column and a first positioning column, and the other tray supporting and positioning column comprises a tray supporting column and a second positioning column; a cylinder body of the lifting cylinder is fixed with the lower mounting plate, a cylinder rod of the lifting cylinder is relatively fixed with the tilt cylinder fixing plate, a cylinder body of the rotating cylinder is fixed with the tilt cylinder fixing plate, and a working surface of the rotating cylinder is fixed with the rotating plate.

Description

Technical Field

[0001] The present invention belongs to the technical fields of electric energy meters and detection assembly lines, and particularly relates to a tray lifting and rotating device for a terminal electric energy meter detection line. Background Art

[0002] In an electric energy meter detection assembly line, considering factors such as cost and compatibility, multiple electric energy meter crimping mechanisms are often arranged simultaneously for detecting different types of electric energy meters. An electric energy meter crimping mechanism refers to a mechanism dedicated to detecting each terminal on an electric energy meter, which has a base, multiple detection needles, a data wire harness, etc. Among them, each detection needle corresponds one-to-one to each terminal on the electric energy meter to be tested. During crimping, the detection needle contacts and slightly presses the corresponding terminal, so as to perform detection to determine whether the electric energy meter is qualified.

[0003] The electric energy meter crimping mechanisms for detecting various electric energy meters such as single-phase meters, three-phase meters, and terminal meters are different (the single-phase meter crimping mechanism is used to detect single-phase meters, the three-phase meter crimping mechanism is used to detect three-phase meters, and the terminal meter crimping mechanism is used to detect terminal meters). In an electric energy meter detection assembly line, electric energy meters are transported through trays (the single-phase meter tray is used to transport single-phase meters, the three-phase meter tray is used to transport three-phase meters, and the terminal meter tray is used to transport terminal meters). After the electric energy meter to be tested (in the tray) is transported to the designated position by the electric energy meter detection assembly line, it is necessary to adjust the height and direction of the electric energy meter to align with the corresponding electric energy meter crimping mechanism. After that, the electric energy meter crimping mechanism can move so that the detection needles on it can contact the terminals on the electric energy meter to be tested to achieve detection. Summary of the Invention

[0004] The present invention provides a tray lifting and rotating device for a terminal electric energy meter detection line, which can position and support an electric energy meter tray, lift the electric energy meter tray together with the electric energy meter to be tested to a set height, and through rotation, make the terminals of the electric energy meter to be tested face the corresponding electric energy meter crimping mechanism. The overall detection efficiency is high, the adaptability is good, and it has the ability to detect multiple types of electric energy meters.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A tray lifting and rotating device for a terminal electric energy meter detection line can be used to lift and rotate a single-phase meter tray or a three-phase meter tray or a terminal meter tray. The bottom of the single-phase meter tray is provided with a first positioning hole and a second positioning hole. The bottom of the three-phase meter tray is provided with a first positioning hole and a second positioning hole. The bottom of the terminal meter tray is provided with a first positioning hole and a second positioning hole. The electric energy meter detection line can include a single-phase crimping plug, a three-phase crimping plug, and a terminal crimping plug;

[0007] It includes a lower mounting plate, a lifting cylinder arranged on the lower mounting plate, a swing cylinder fixing plate driven by the lifting cylinder to lift, a rotary cylinder arranged on the swing cylinder fixing plate, and a rotating plate driven by the rotary cylinder;

[0008] The rotating plate is horizontally arranged. There are two tray support columns and two tray support positioning columns on the top of the rotating plate. One of the tray support positioning columns includes a tray support column and a first positioning column adapted to the first positioning hole, and the other tray support positioning column includes a tray support column and a second positioning column adapted to the second positioning hole;

[0009] The cylinder block of the lifting cylinder is fixed to the lower mounting plate, the cylinder rod of the lifting cylinder is relatively fixed to the swing cylinder fixing plate, the cylinder block of the rotary cylinder is fixed to the swing cylinder fixing plate, and the working surface of the rotary cylinder is fixed to the rotating plate.

[0010] Preferably, the swing cylinder fixing plate is slidably connected to the lower mounting plate through a plurality of linear bearings. The linear bearing includes a vertically arranged optical axis and a sliding sleeve slidably connected to the optical axis, and the sliding sleeve is fixed to the swing cylinder fixing plate.

[0011] Preferably, the number of the linear bearings is four, and the four linear bearings are evenly distributed in a ring. There are lifting polyurethane buffer pads and fixed rings relatively fixed to the ground on the optical axis. On one optical axis: the sliding sleeve, the lifting polyurethane buffer pad and the fixed ring are arranged in sequence from top to bottom.

[0012] Preferably, the lifting cylinder is an ultra-thin cylinder. There is a cylinder joint on the cylinder rod of the lifting cylinder, and a connection head pressing plate is arranged on the swing cylinder fixing plate, and the cylinder joint is connected with the connection head pressing plate.

[0013] Preferably, there is a single-phase plate-shaped hard needle on the single-phase crimping plug, a three-phase plate-shaped hard needle on the three-phase crimping plug, and a terminal plate-shaped hard needle on the terminal crimping plug. On the tray support positioning column including the first positioning column: the tray support column is sleeved outside the first positioning column, and there is a receiving hole structure on the first positioning column for one end of the single-phase plate-shaped hard needle or one end of the three-phase plate-shaped hard needle or one end of the terminal plate-shaped hard needle to enter, and there is a large through-hole on the tray support column for the single-phase plate-shaped hard needle or the three-phase plate-shaped hard needle or the terminal plate-shaped hard needle to pass through.

[0014] Preferably, the receiving hole structure includes a single-phase corresponding hole, a three-phase corresponding hole and a terminal corresponding hole arranged in sequence from top to bottom. There is a single-phase pressing block in the first positioning hole at the bottom of the single-phase meter tray, a three-phase pressing block in the first positioning hole at the bottom of the three-phase meter tray, and a terminal pressing block in the first positioning hole at the bottom of the terminal meter tray. The single-phase plate-shaped hard needle is horizontally arranged and adapted to the single-phase corresponding hole, the three-phase plate-shaped hard needle forms an angle of 45 degrees with the horizontal plane and is adapted to the three-phase corresponding hole, and the terminal plate-shaped hard needle is vertically arranged and adapted to the terminal corresponding hole;

[0015] The first positioning post can move up and down along the tray support post, and a support spring is provided at the bottom of the first positioning post;

[0016] When the single-phase meter tray is supported by each support post and the single-phase pressing block presses the first positioning post, the single-phase plate-shaped hard needle is aligned with the single-phase corresponding hole; when the three-phase meter tray is supported by each support post and the three-phase pressing block presses the first positioning post, the three-phase plate-shaped hard needle is aligned with the three-phase corresponding hole; when the terminal meter tray is supported by each support post and the terminal pressing block presses the first positioning post, the terminal plate-shaped hard needle is aligned with the terminal corresponding hole.

[0017] Preferably, the diameter of the first positioning post is less than 2 cm. On the tray support positioning post including the first positioning post: there is a column hole on the tray support post, the first positioning post is in sliding fit with the column hole, the support spring is arranged in the column hole, the upper end of the support spring is connected to the lower end of the first positioning post, and the lower end of the support spring is connected to the top surface of the rotating plate.

[0018] Preferably, a first hydraulic buffer and a second hydraulic buffer are provided on the swing cylinder fixing plate, and a hard limit block for contacting the hydraulic buffer is provided on the rotating plate. When the rotating plate rotates from the position where it contacts the hard limit block of the first hydraulic buffer to the position where it contacts the hard limit block of the second hydraulic buffer, the angle rotated by the rotating plate is 180 degrees.

[0019] Preferably, the first hydraulic buffer is fixed on a buffer mounting seat, the second hydraulic buffer is fixed on another buffer mounting seat, and each buffer mounting seat is fixedly installed on the swing cylinder fixing plate by screws.

[0020] The beneficial effects of the present invention are: it can position and support the meter tray, and can lift the meter tray together with the meter to be measured to a set height, and can, in a rotating manner, make the terminals of the meter to be measured face the corresponding meter pressing mechanism. The overall detection efficiency is high, the adaptability is good, and it has the ability to detect multiple types of meters; it can automatically judge whether the tray is accurately positioned and whether the meter has risen in place, and can automatically judge whether the tray has rotated in place. Thus, during detection, if the position of the meter is incorrect, the detection needle protection function will be automatically triggered to protect the detection needle and the meter pressing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a front view of the present invention;

[0023] Figure 3 is a bottom view of the present invention;

[0024] Figure 4 is Figure 1 an enlarged view of part A in

[0025] Figure 5 is a schematic structural view of the first positioning post of the present invention;

[0026] Figure 6 is Figure 2 a cross-sectional view taken along line A-A in

[0027] Figure 7 is a schematic partial structural view of the present invention.

[0028] Reference numerals: lower mounting plate 1, lifting cylinder 2, cylinder joint 201, connecting head pressing plate 202, swing cylinder fixing plate 3, first hydraulic buffer 301, second hydraulic buffer 302, buffer mounting seat 303, rotary cylinder 4, rotary plate 5, hard limit block 501, tray support column 601, large through hole 601a, column hole 601b, support spring 601.1, first positioning post 602, single-phase corresponding hole 602a, three-phase corresponding hole 602b, terminal corresponding hole 602c, second positioning post 603, linear bearing 7, optical axis 701, sliding sleeve 702, lifting polyurethane buffer 703, fixing ring 704, single-phase plate-shaped hard needle 801, three-phase plate-shaped hard needle 802, terminal plate-shaped hard needle 803. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 shown,

[0031] A tray lifting and rotating device for a terminal electricity meter detection line can be used to lift and rotate a single-phase meter tray or a three-phase meter tray or a terminal meter tray. The bottom of the single-phase meter tray is provided with a first positioning hole and a second positioning hole. The bottom of the three-phase meter tray is provided with a first positioning hole and a second positioning hole. The bottom of the terminal meter tray is provided with a first positioning hole and a second positioning hole. The electricity meter detection line can include a single-phase crimping plug, a three-phase crimping plug, and a terminal crimping plug;

[0032] including a lower mounting plate 1, a lifting cylinder 2 provided on the lower mounting plate 1, a swing cylinder fixing plate 3 driven by the lifting cylinder 2 to lift, a rotary cylinder 4 provided on the swing cylinder fixing plate 3, and a rotary plate 5 driven by the rotary cylinder 4;

[0033] The rotating plate 5 is horizontally arranged. Two tray support columns 601 and two tray support positioning columns are provided on the top of the rotating plate 5. One of the tray support positioning columns includes the tray support column 601 and the first positioning column 602 adapted to the first positioning hole, and the other tray support positioning column includes the tray support column 601 and the second positioning column 603 adapted to the second positioning hole;

[0034] The upper end of the first tray positioning column, the upper end of any one of the tray support columns 601, the rotating plate 5, the swing cylinder fixing plate 3 and the lower mounting plate 1 are arranged in sequence from top to bottom. The upper end of the second tray positioning column, the upper end of any one of the tray support columns 601 and the rotating plate 5 are arranged in sequence from top to bottom;

[0035] The cylinder body of the lifting cylinder 2 is fixed to the lower mounting plate 1, the cylinder rod of the lifting cylinder 2 is relatively fixed to the swing cylinder fixing plate 3, the cylinder body of the rotating cylinder 4 is fixed to the swing cylinder fixing plate 3, and the working surface of the rotating cylinder 4 is fixed to the rotating plate 5.

[0036] The present invention can be arranged at the detection position of the electric energy meter detection production line. The electric energy meters are transported through trays (the single-phase meter tray is used to transport single-phase meters, the three-phase meter tray is used to transport three-phase meters, and the terminal meter tray is used to transport terminal meters. The trays are driven forward by the conveyor belt of the electric energy meter detection production line). After the tray is transported to the detection position, the tray is located above the present invention.

[0037] The lifting cylinder 2 works to drive structures such as the swing cylinder fixing plate 3, the rotating cylinder 4 and the rotating plate 5 to rise together. The first positioning column 602 on the rotating plate 5 extends into the first positioning hole at the bottom of the tray, and the second positioning column 603 on the rotating plate 5 extends into the second positioning hole at the bottom of the tray. Each tray support column 601 on the rotating plate 5 contacts the bottom surface of the tray (at this time, the tray is horizontally arranged and relatively fixed to the rotating plate 5). Then, the lifting cylinder 2 drives structures such as the swing cylinder fixing plate 3, the rotating cylinder 4 and the rotating plate 5 to continue to rise, and the tray together with the electric energy meter to be measured in the tray can be jacked up away from the electric energy meter detection production line. Then the rotating cylinder 4 works (the working surface of the rotating cylinder 4 is connected to the rotating plate 5, which means the connecting surface of the rotating structure of the rotating cylinder 4 is connected to the rotating plate 5), and the rotating cylinder 4 drives the rotating plate 5 and the tray and the electric energy meter to be measured on it to rotate together.

[0038] If a single-phase meter is to be tested, the corresponding action of the program selected by the operator is to rotate the single-phase meter tray to align the terminals of the meter to be tested with the corresponding detection pins on the single-phase meter crimping mechanism. If a three-phase meter is to be tested, the corresponding action of the program selected by the operator is to rotate the three-phase meter tray to align the terminals of the meter to be tested with the corresponding detection pins on the three-phase meter crimping mechanism. If a terminal meter is to be tested, the corresponding action of the program selected by the operator is to rotate the terminal meter tray to align the terminals of the meter to be tested with the corresponding detection pins on the terminal meter crimping mechanism.

[0039] Taking the detection of a single-phase meter as an example, after the terminals are aligned with the corresponding detection pins on the single-phase meter crimping mechanism, the single-phase meter crimping mechanism operates, and all the detection pins move towards the single-phase meter together until all the detection pins contact and slightly press the corresponding terminals, so that detection can be carried out. The same applies to detecting other types of watt-hour meters.

[0040] Taking Figure 7 the perspective in as an example, for example: in the current perspective, when the rotating plate 5 is lifted in place by the lifting cylinder 2, the rotating plate 5 remains stationary and the terminal meter can be detected; in the current perspective, when the rotating plate 5 is lifted in place by the lifting cylinder 2, the rotating plate 5 rotates 90 degrees clockwise and the three-phase meter can be detected; in the current perspective, when the rotating plate 5 is lifted in place by the lifting cylinder 2, the rotating plate 5 rotates 180 degrees clockwise and the single-phase meter can be detected.

[0041] After the detection is completed, the rotating cylinder 4 drives the rotating plate 5 to rotate and reset, and the lifting cylinder 2 drives the swing cylinder fixing plate 3, the rotating cylinder 4, the rotating plate 5 and other structures to descend and reset together, and the tray falls back to the watt-hour meter detection production line.

[0042] The swing cylinder fixing plate 3 is slidably connected to the lower mounting plate 1 through a plurality of linear bearings 7. The linear bearings 7 include a vertically arranged optical axis 701 and a sliding sleeve 702 slidably connected to the optical axis 701. The sliding sleeve 702 is fixed to the swing cylinder fixing plate 3.

[0043] The linear bearings 7 are used for auxiliary guiding, so as to ensure the stability during the working process.

[0044] The number of the linear bearings 7 is four, and the four linear bearings 7 are evenly distributed in a ring. An elevating polyurethane buffer pad 703 and a fixed ring 704 fixed relative to the ground are provided on the optical axis 701. On one optical axis 701, the sliding sleeve 702, the elevating polyurethane buffer pad 703 and the fixed ring 704 are arranged in sequence from top to bottom.

[0045] As mentioned above, "after the detection is completed, the rotary cylinder 4 drives the rotary plate 5 to rotate and reset, and the lifting cylinder 2 drives the swing cylinder fixing plate 3, the rotary cylinder 4, the rotary plate 5 and other structures to descend and reset together". In this solution, a lifting polyurethane buffer pad 703 is configured. When descending and resetting, the lifting polyurethane buffer pad 703 can contact the fixed ring 704, thereby realizing buffering and shock absorption, protecting structures such as the lifting cylinder 2, and at the same time reducing the negative impact on the electricity meter to be measured, etc.

[0046] The lifting cylinder 2 is an ultra-thin cylinder. A cylinder joint 201 is provided on the cylinder rod of the lifting cylinder, and a connection head pressing plate 202 is provided on the swing cylinder fixing plate 3. The cylinder joint 201 is connected to the connection head pressing plate 202.

[0047] There are many components in the electricity meter detection production line. Especially at the detection position, various structures such as the single-phase meter crimping mechanism, the three-phase meter crimping mechanism, the terminal meter crimping mechanism, and the present invention are assembled. Configuring an ultra-thin cylinder is beneficial to preventing interference, reducing the layout difficulty, and improving the rationality of the overall layout.

[0048] A single-phase plate-shaped hard needle 801 is provided on the single-phase crimping plug, a three-phase plate-shaped hard needle 802 is provided on the three-phase crimping plug, and a terminal plate-shaped hard needle 803 is provided on the terminal crimping plug. On the tray support positioning column including the first positioning column 602: the tray support column 601 is sleeved outside the first positioning column 602. An accommodating hole structure is provided on the first positioning column 602 for one end of the single-phase plate-shaped hard needle 801 or one end of the three-phase plate-shaped hard needle 802 or one end of the terminal plate-shaped hard needle 803 to enter. A large through-hole 601a is provided on the tray support column 601 for the single-phase plate-shaped hard needle 801 or the three-phase plate-shaped hard needle 802 or the terminal plate-shaped hard needle 803 to pass through.

[0049] As mentioned above, "the lifting cylinder 2 works, driving the swing cylinder fixing plate 3, the rotary cylinder 4, the rotary plate 5 and other structures to rise together. The first positioning column 602 on the rotary plate 5 extends into the first positioning hole at the bottom of the tray, and the second positioning column 603 on the rotary plate 5 extends into the second positioning hole at the bottom of the tray. Each tray support column 601 on the rotary plate 5 contacts the bottom surface of the tray (at this time, the tray is horizontally arranged and relatively fixed to the rotary plate 5)". Then, if the positioning column fails to align with the positioning hole occasionally, it will cause the tray to tilt (the position of the electricity meter is incorrect) although the tray is lifted. In this way, when the electricity meter crimping mechanism works, each detection needle cannot move to the proper position, contact and press the corresponding terminal well, and some or even all of the detection needles will directly hit the outer shell of the electricity meter during the movement, resulting in damage.

[0050] In view of this, various flat hard needles are configured in this solution. Before the detection needle touches the outer shell of the electricity meter, the flat hard needle will first pass through the large through-hole 601a and then try to enter the receiving hole structure. If the electricity meter is in the correct position, one end of the flat hard needle can smoothly enter the receiving hole structure, and then the subsequent detection needles can naturally smoothly contact and press the corresponding terminals. Otherwise, the flat hard needle will abut against the side wall of the first positioning post 602, and then the "last moving distance" of each detection needle cannot be achieved, that is, each detection needle cannot touch the outer shell of the electricity meter, thereby protecting the detection needle and the crimping structure of the electricity meter.

[0051] Supplementary note: In this solution, the receiving hole structure can be a single hole. Because its function is to determine whether the tray is at the correct height (and the tray is horizontal), during detection, only when the tray is at the correct height (and the tray is horizontal and other conditions also meet the detection standards), can the receiving hole structure accommodate one end of the flat hard needle.

[0052] The receiving hole structure includes a single-phase corresponding hole 602a, a three-phase corresponding hole 602b, and a terminal corresponding hole 602c arranged in sequence from top to bottom. A single-phase pressing block is provided in the first positioning hole at the bottom of the single-phase meter tray, a three-phase pressing block is provided in the first positioning hole at the bottom of the three-phase meter tray, and a terminal pressing block is provided in the first positioning hole at the bottom of the terminal meter tray. The single-phase flat hard needle 801 is horizontally arranged and adapted to the single-phase corresponding hole 602a, the three-phase flat hard needle 802 forms an angle of 45 degrees with the horizontal plane and is adapted to the three-phase corresponding hole 602b, and the terminal flat hard needle 803 is vertically arranged and adapted to the terminal corresponding hole 602c;

[0053] The first positioning post 602 can move up and down along the tray support post 601, and a support spring 601.1 is provided at the bottom of the first positioning post 602;

[0054] When the single-phase meter tray is supported by each support post and the single-phase pressing block presses the first positioning post 602, the single-phase flat hard needle 801 is aligned with the single-phase corresponding hole 602a; when the three-phase meter tray is supported by each support post and the three-phase pressing block presses the first positioning post 602, the three-phase flat hard needle 802 is aligned with the three-phase corresponding hole 602b; when the terminal meter tray is supported by each support post and the terminal pressing block presses the first positioning post 602, the terminal flat hard needle 803 is aligned with the terminal corresponding hole 602c.

[0055] As previously recorded, if a single-phase meter is to be tested, the action corresponding to the program selected by the operator is to rotate the single-phase meter tray to "align the terminals of the meter under test with the corresponding detection needles on the single-phase meter crimping mechanism". If a three-phase meter is to be tested, the action corresponding to the program selected by the operator is to rotate the three-phase meter tray to "align the terminals of the meter under test with the corresponding detection needles on the three-phase meter crimping mechanism". If a terminal meter is to be tested, the action corresponding to the program selected by the operator is to rotate the terminal meter tray to "align the terminals of the meter under test with the corresponding detection needles on the terminal meter crimping mechanism". It can be seen that when changing the type of the detection object, the operator needs to select the corresponding program. For example, after testing a batch of single-phase meters and now testing a three-phase meter, the action corresponding to the program selected by the operator is to rotate the single-phase meter tray to "align the terminals of the meter under test with the corresponding detection needles on the three-phase meter crimping mechanism". However, no matter how careful one is, mistakes are inevitable. For example, when testing a three-phase meter, the operator mistakenly selects the program corresponding to testing the terminal meter. In this way, the detection needles of the terminal meter crimping mechanism will press against the three-phase meter. Due to the misalignment of the terminals and the detection needles, some detection needles will directly press against the outer shell of the three-phase meter, resulting in damage to the detection needles.

[0056] In view of this, before the detection needle touches the outer shell of the meter, the plate-shaped hard needle will first pass through the large through-hole 601a and then try to enter the accommodation hole structure (the single-phase plate-shaped hard needle 801 can and can only enter the single-phase corresponding hole 602a, the three-phase plate-shaped hard needle can and can only enter the three-phase corresponding hole 602b, and the terminal plate-shaped hard needle 803 can and can only enter the terminal corresponding hole 602c). Only when the meter is in the correct position and the operator selects the correct program can one end of the plate-shaped hard needle smoothly enter the corresponding hole, and each detection needle can smoothly contact and press the corresponding terminal. Otherwise, the plate-shaped hard needle will press against the side wall of the first positioning post 602, and then the "last moving distance" of each detection needle cannot be achieved, that is, each detection needle cannot touch the outer shell of the meter, thus protecting the detection needles and the meter crimping structure.

[0057] Supplementary explanation: In this solution, the accommodation hole structure includes the single-phase corresponding hole 602a, the three-phase corresponding hole 602b, and the terminal corresponding hole 602c arranged in sequence from top to bottom. Because the function of this solution is to determine whether the tray has rotated to the correct position, during testing, only when the tray rotates to the correct position (and other conditions also meet the testing standards) can the plate-shaped hard needle be aligned with the corresponding hole.

[0058] In addition, some forms of trays can hold two identical electricity meters. After the tray is lifted by the present invention, the two electricity meters are symmetrically arranged about the rotation axis center of the working surface of the rotary cylinder. Therefore, the same accommodation hole structure and corresponding large through-holes and other structures as those at the first positioning post can also be arranged at the second positioning post. In this way, after one electricity meter on the tray is detected, the tray is rotated 180 degrees to detect the other electricity meter on the tray.

[0059] The diameter of the first positioning post 602 is less than 2 cm. On the tray support positioning post including the first positioning post 602: a column hole 601b is provided on the tray support post 601. The first positioning post 602 is in sliding fit with the column hole 601b. A support spring 601.1 is arranged in the column hole 601b. The upper end of the support spring 601.1 is connected to the lower end of the first positioning post 602, and the lower end of the support spring is connected to the top surface of the rotating plate 5.

[0060] The electricity meter crimping mechanism is usually driven by a cylinder. The diameter of the first positioning post 602 being less than 2 cm means that if a plate-shaped hard needle is pressed against the side wall of the first positioning post 602, the difference between the "should-have-moved distance" of the plate-shaped hard needle and the "already-moved distance" is also less than 2 cm. That is, the cylinder rod of the cylinder driving the plate-shaped hard needle (and the electricity meter crimping mechanism where the plate-shaped hard needle is located) has moved "less than 2 cm" less than the set situation. This distance is very small and is easily bearable for the cylinder driving the electricity meter crimping mechanism (the maximum stroke of the cylinder rod is usually not less than 20 cm). The impact between the plate-shaped hard needle and the first positioning post 602 will also be relatively small. In this way, the detection needle and the electricity meter crimping mechanism can be better protected.

[0061] A first hydraulic buffer 301 and a second hydraulic buffer 302 are provided on the swing cylinder fixing plate 3. A hard limit block 501 for contacting the hydraulic buffer is provided on the rotating plate 5. When the rotating plate 5 rotates from the position where the first hydraulic buffer 301 contacts the hard limit block 501 and the first hydraulic buffer 301 is in a fully compressed state to the position where the second hydraulic buffer 302 contacts the hard limit block 501 and the second hydraulic buffer 302 is in a fully compressed state, the angle turned by the rotating plate 5 is 180 degrees.

[0062] By using the contact damping between the first hydraulic buffer 301 and the hard limit block 501 and the contact damping between the second hydraulic buffer 302 and the hard limit block 501, the rotary cylinder 4 in the extreme working position can be effectively protected, which not only ensures the service life of the relevant structures but also ensures the stability of the working process through damping.

[0063] The first hydraulic buffer 301 is fixed on a buffer mounting seat 303, and the second hydraulic buffer 302 is fixed on another buffer mounting seat 303. Each buffer mounting seat 303 is fixedly installed on the swing cylinder fixing plate 3 by screws.

[0064] The buffer mounting seat 303 is used to fix the first hydraulic buffer 301 and the second hydraulic buffer 302, which is more convenient for disassembly and assembly, and is beneficial to maintenance and replacement.

[0065] The embodiments of the present invention have been described in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A tray lifting and rotating device for a terminal electric energy meter detection line, which can be used to lift and rotate a single-phase meter tray, a three-phase meter tray or a terminal meter tray. The bottom of the single-phase meter tray is provided with a first positioning hole and a second positioning hole. The bottom of the three-phase meter tray is provided with a first positioning hole and a second positioning hole. The bottom of the terminal meter tray is provided with a first positioning hole and a second positioning hole. The electric energy meter detection line may include a single-phase crimping plug, a three-phase crimping plug and a terminal crimping plug. Its characteristics are that it includes a lower mounting plate, a lifting cylinder arranged on the lower mounting plate, a swing cylinder fixing plate driven by the lifting cylinder to lift, a rotating cylinder arranged on the swing cylinder fixing plate and a rotating plate driven by the rotating cylinder; the rotating plate is horizontally arranged, and two tray support columns and two tray support positioning columns are arranged on the top of the rotating plate. One of the tray support positioning columns includes a tray support column and a first positioning column adapted to the first positioning hole, and the other tray support positioning column includes a tray support column and a second positioning column adapted to the second positioning hole; the cylinder body of the lifting cylinder is fixed to the lower mounting plate, the cylinder rod of the lifting cylinder is relatively fixed to the swing cylinder fixing plate, the cylinder body of the rotating cylinder is fixed to the swing cylinder fixing plate, and the working surface of the rotating cylinder is fixed to the rotating plate.

2. The pallet lifting and rotating device for the terminal electric energy meter detection line according to claim 1, wherein, The swing cylinder fixing plate is slidably connected to the lower mounting plate through a plurality of linear bearings. The linear bearings include a vertically arranged optical axis and a sliding sleeve slidably connected to the optical axis, and the sliding sleeve is fixed to the swing cylinder fixing plate.

3. The pallet lifting and rotating device for the terminal electric energy meter detection line according to claim 2, characterized in that, The number of the linear bearings is four, and the four linear bearings are evenly distributed in a ring. An elevating polyurethane buffer pad and a fixed ring relatively fixed to the ground are arranged on the optical axis. On one optical axis: the sliding sleeve, the elevating polyurethane buffer pad and the fixed ring are arranged in sequence from top to bottom.

4. A tray lifting and rotating device for a terminal electric energy meter detection line according to claim 1, characterized in that, The lifting cylinder is an ultra-thin cylinder. A cylinder joint is arranged on the cylinder rod of the lifting cylinder, and a connecting head pressing plate is arranged on the swing cylinder fixing plate. The cylinder joint is connected to the connecting head pressing plate.

5. A tray lifting and rotating device for a terminal electric energy meter detection line according to claim 1 or 2 or 3 or 4, characterized in that, The single-phase crimping plug is provided with a single-phase plate-shaped hard needle, the three-phase crimping plug is provided with a three-phase plate-shaped hard needle, and the terminal crimping plug is provided with a terminal plate-shaped hard needle. On the tray support positioning column including the first positioning column: the tray support column is sleeved outside the first positioning column, and a receiving hole structure for one end of the single-phase plate-shaped hard needle or one end of the three-phase plate-shaped hard needle or one end of the terminal plate-shaped hard needle to enter is arranged on the first positioning column. A large through hole for the single-phase plate-shaped hard needle or the three-phase plate-shaped hard needle or the terminal plate-shaped hard needle to pass through is arranged on the tray support column.

6. The tray lifting and rotating device for the terminal electric energy meter detection line according to claim 6, wherein, The receiving hole structure includes a single-phase corresponding hole, a three-phase corresponding hole and a terminal corresponding hole arranged in sequence from top to bottom. A single-phase pressing block is arranged in the first positioning hole at the bottom of the single-phase meter tray. A three-phase pressing block is arranged in the first positioning hole at the bottom of the three-phase meter tray. A terminal pressing block is arranged in the first positioning hole at the bottom of the terminal meter tray. The single-phase plate-shaped hard needle is horizontally arranged and adapted to the single-phase corresponding hole. The three-phase plate-shaped hard needle forms an angle of 45 degrees with the horizontal plane and is adapted to the three-phase corresponding hole. The terminal plate-shaped hard needle is vertically arranged and adapted to the terminal corresponding hole; The first positioning post can move up and down along the tray support post, and a support spring is provided at the bottom of the first positioning post; when the single-phase meter tray is supported by each support post and the single-phase pressing block presses the first positioning post, the single-phase plate-shaped hard needle is aligned with the single-phase corresponding hole; when the three-phase meter tray is supported by each support post and the three-phase pressing block presses the first positioning post, the three-phase plate-shaped hard needle is aligned with the three-phase corresponding hole; when the terminal meter tray is supported by each support post and the terminal pressing block presses the first positioning post, the terminal plate-shaped hard needle is aligned with the terminal corresponding hole.

7. The tray lifting and rotating device for the terminal electric energy meter detection line according to claim 6, characterized in that, The diameter of the first positioning post is less than 2 cm. On the tray support positioning post including the first positioning post: a column hole is provided on the tray support post, the first positioning post is in sliding fit with the column hole, the support spring is arranged in the column hole, the upper end of the support spring is connected to the lower end of the first positioning post, and the lower end of the support spring is connected to the top surface of the rotating plate.

8. A tray lifting and rotating device for a terminal electric energy meter detection line according to claim 1 or 2 or 3 or 4, characterized in that, A first hydraulic buffer and a second hydraulic buffer are provided on the swing cylinder fixing plate, and a hard limit block for contacting the hydraulic buffer is provided on the rotating plate. When the rotating plate rotates from the position where the first hydraulic buffer contacts the hard limit block to the position where the second hydraulic buffer contacts the hard limit block, the rotation angle of the rotating plate is 180 degrees.

9. The tray lifting and rotating device for the terminal electric energy meter detection line according to claim 8, characterized in that, The first hydraulic buffer is fixed on a buffer mounting seat, the second hydraulic buffer is fixed on another buffer mounting seat, and each buffer mounting seat is installed and fixed on the swing cylinder fixing plate by screws.

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