Switch cabinet contact arm assembly tool

Abstract

The utility model relates to the field of switch cabinets, in particular to a switch cabinet contact arm assembly tool. Comprising a base, a supporting mechanism and a positioning mechanism. A horizontal guide mechanism for guiding the handcart to a preset position is arranged on the base; the positioning mechanism comprises a first support fixedly installed on the base, a back plate connected to the first support in a vertical sliding mode, a first limiting piece and a plurality of positioning shaft sleeves fixedly installed on the back plate, the positioning shaft sleeves are used for being inserted into ports of the contact arms, and the ends of the contact arms make contact with the back plate to form limiting; the supporting mechanism comprises a second support fixedly installed on the base, a transverse rod connected to the first support in a vertical sliding mode, a second limiting piece and a plurality of supporting blocks fixedly installed on the transverse rod, each supporting block has an upward moving state and a downward moving state, and the supporting blocks are used for supporting the periphery of the contact arm when moving upwards so that the contact arm and the positioning shaft sleeve can be coaxial. The installation accuracy of the contact arm can be improved, and the installation efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of switch cabinets, and particularly to an assembly tooling for the contact arm of a switch cabinet. Background Art

[0002] When assembling the contact arm of a draw-out switch cabinet device, the various parts are fixed by bolt connection. Since there is a gap between the bolt and the bolt hole in the part, with the continuous assembly of the parts, the cumulative assembly error caused by this gap becomes larger and larger. On the other hand, the contact arms of the draw-out switch are relatively long, and it is very difficult to completely align the contact arms during assembly, and they are prone to deflection. Due to the length of the contact arm itself, a small-angle deflection will magnify the position error dimension. These two aspects will ultimately cause the position of the contact to deviate.

[0003] The tooling in the related art cannot ensure the accuracy of the contact arm during assembly. When a position deviation occurs, continuous debugging is required to achieve the purpose of the cooperation between the switch cabinet and the draw-out switch, which is a cumbersome process and has low efficiency, increasing the cost of the enterprise. Summary of the Invention

[0004] In view of this, the present application provides an assembly tooling for the contact arm of a switch cabinet, which can increase the accuracy of the contact arm installation and improve the installation efficiency.

[0005] To achieve the above object, the present application is realized through the following technical solutions:

[0006] An assembly tooling for the contact arm of a switch cabinet, characterized in that: it includes a base, a support mechanism and a positioning mechanism; a horizontal guiding mechanism for guiding the draw-out switch to a preset position is arranged on the base; the positioning mechanism includes a first bracket fixedly installed on the base, a back plate connected to the first bracket in a vertically sliding manner, a first limiting member for fixing the back plate at a preset height, and a plurality of positioning bushings fixedly installed on the back plate, and the positioning bushings are used for inserting into the ports of the contact arms, and the ends of the contact arms touch the back plate to form a limit; the support mechanism includes a second bracket fixedly installed on the base, a cross bar connected to the first bracket in a vertically sliding manner, a second limiting member for fixing the cross bar at a preset vertical position, and a plurality of supporting blocks fixedly installed on the cross bar, and the supporting blocks have two states of moving up and down. When the supporting blocks move up, they are used for supporting on the outer periphery of the contact arm to make the contact arm coaxial with the positioning bushing.

[0007] For the above assembly tooling for the contact arm of a switch cabinet in the present application, by inserting the positioning bushing into the contact arm and the supporting blocks supporting the outer wall of the contact arm, it can ensure that the contact arm is coaxial with the positioning bushing, thereby ensuring the accuracy of the installation position of the contact arm. Subsequently, the draw-out switch is guided to a suitable position through the horizontal guiding mechanism. In this way, the assembly accuracy of the draw-out switch and the contact arm is high, and the supporting blocks can move down to facilitate the withdrawal of the draw-out switch with the assembled contact arm. Moreover, the back plate can be adjusted up and down, with higher compatibility, and can be applicable to draw-out switches with different ground clearances of the contact arms.

[0008] In some embodiments, the first bracket includes two rear columns arranged at intervals left and right, and a first guide rail extending vertically is provided on each of the rear columns. First sliders are respectively fixedly provided at the left and right ends of the back plate, and the first sliders at both ends are respectively slidably connected to the two first guide rails. The first limiting member includes a limiting block slidably connected to the first slider and located below the first slider, and a screw threadedly connected to the limiting block. The screw presses against the first guide rail, so that the limiting block is fixed to the first guide rail.

[0009] In some embodiments, a vertically distributed scale is further provided on the rear column. It provides a reliable dimensional position for the up and down adjustment of the back plate.

[0010] In some embodiments, an external thread is provided on the outer periphery of the positioning bushing, and it is locked to the back plate by a nut. The positioning bushing is of a detachable structure, and different sizes of positioning bushings can be replaced according to different specifications of the contact arms.

[0011] In some embodiments, the second bracket includes two front columns arranged at intervals left and right, and a second guide rail extending vertically is provided on each of the front columns. Second sliders are respectively fixedly provided at the left and right ends of the cross bar, and the second sliders at both ends are respectively slidably connected to the two second guide rails. The second limiting member includes a locking plate fixedly installed on the front column and an automatic spring latch fixedly installed on the cross bar. The locking plate has two upper and lower holes. When the automatic spring latch is respectively inserted into the two holes, the support block is in an upward or downward movement state. Among them, the automatic spring latch is used for position locking, and the operation is more efficient and convenient, saving working hours.

[0012] In some embodiments, a long groove with an upward opening is provided in the middle of the cross bar, the support block is installed in the long groove and locked by screws, and a V-shaped opening is provided on the support block.

[0013] In some embodiments, the horizontal guiding mechanism includes two third guide rails installed on the base at intervals left and right for the walking trolley, the third guide rails extend in the front-rear direction, the outer sides of the two third guide rails are of an open structure, a limiting frame protruding upward is provided at the end of the third guide rail, and a guiding block is provided on the inner side of the end of the third guide rail, and the guiding block is inclined inward.

[0014] Among them, the outer sides of the third guide rails are of an open structure, and the trolley can be directly transferred to the third guide rails through a hoisting mechanism, which is convenient for transfer. And a limiting frame is also provided on the third guide rails, which can effectively limit the extreme distance of the trolley's rocking in to prevent the contact arm and the tooling positioning bushing from being damaged by misoperation. Moreover, a guiding block is also provided on the inner side of the third guide rail. When the trolley rocks to the assembly position, it ensures that the trolley is in the central position to ensure the reliability of the assembly.

[0015] As can be seen from the above technical solutions, the present application has at least the following advantages and positive effects:

[0016] An assembly tooling for a switch cabinet contact arm in the present application inserts a positioning bushing into the contact arm, and a supporting block holds the outer wall of the contact arm to ensure the coaxiality of the contact arm and the positioning bushing, thereby ensuring the accuracy of the installation position of the contact arm. Subsequently, the trolley is guided to a suitable position through a horizontal guiding mechanism. In this way, the assembly accuracy of the trolley and the contact arm is high, and the supporting block can be moved down to facilitate the withdrawal of the trolley with the assembled contact arm. Moreover, the back plate can be adjusted up and down, with higher compatibility, and can be applied to trolleys with different contact arm-to-ground spacings. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the use state of an embodiment of the present application;

[0019] Figure 3 is a schematic structural diagram of a positioning mechanism in an embodiment of the present application;

[0020] Figure 4 is a schematic structural diagram of a supporting mechanism in an embodiment of the present application;

[0021] Figure 5 is Figure 4 an enlarged schematic diagram at position B in

[0022] Figure 6 is Figure 2 an enlarged schematic diagram at position A in

[0023] Reference numerals: 1, base; 2, supporting mechanism; 21, second bracket; 22, cross bar; 221, long groove; 23, second limiting member; 231, locking plate; 232, automatic spring bolt; 2321, hole position; 24, supporting block; 241, V-shaped opening; 25, second slider; 26, second guide rail; 3, positioning mechanism; 31, first bracket; 32, back plate; 33, first limiting member; 331, limiting block; 332, screw; 34, positioning bushing; 35, first slider; 36, scale; 37, nut; 38, first guide rail; 4, horizontal guiding mechanism; 41, third guide rail; 42, limiting frame; 43, guiding block; 5, trolley; 51, roller; 511, large wheel; 512, small wheel; 6, contact arm. Detailed Embodiments

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings. The terms used in the implementation part of this application are only used to explain the specific embodiments of this application, rather than aiming to limit this application.

[0025] Referring to Figures 1 to 6 , an assembly tool for the switch cabinet contact arm according to an embodiment of this application includes a base 1, a support mechanism 2, and a positioning mechanism 3; a horizontal guiding mechanism 4 for guiding the handcart 5 to a preset position is arranged on the base 1; the positioning mechanism 3 includes a first bracket 31 fixedly installed on the base 1, a back plate 32 connected to the first bracket 31 in a vertically sliding manner, a first limiting member 33 for fixing the back plate 32 at a preset height, and a plurality of positioning bushings 34 fixedly installed on the back plate 32. The positioning bushings 34 are used to be inserted into the ports of the contact arm 6, and the end of the contact arm 6 touches the back plate 32 to form a limit; the support mechanism 2 includes a second bracket 21 fixedly installed on the base 1, a cross bar 22 connected to the first bracket 31 in a vertically sliding manner, a second limiting member 23 for fixing the cross bar 22 at a preset vertical position, and a plurality of supporting blocks 24 fixedly installed on the cross bar 22. The supporting blocks 24 have two states of moving up and down. When the supporting blocks 24 move up, they are used to support the outer periphery of the contact arm 6 to make the contact arm 6 coaxial with the positioning bushing 34.

[0026] For this assembly tool, by inserting the positioning bushing 34 into the contact arm 6 and the supporting block 24 supporting the outer wall of the contact arm 6, it can ensure that the contact arm 6 is coaxial with the positioning bushing, thereby ensuring the accuracy of the installation position of the contact arm 6. Subsequently, the handcart 5 is guided to a suitable position through the horizontal guiding mechanism 4. In this way, the assembly accuracy of the handcart 5 and the contact arm 6 is high, and the supporting block 24 can move down to facilitate the withdrawal of the handcart 5 with the contact arm 6 assembled. Moreover, the back plate 32 can be adjusted up and down, with higher compatibility, and can be applicable to the handcart 5 with different ground spacings of the contact arm 6.

[0027] In some embodiments, the first bracket 31 includes two rear columns arranged at intervals left and right. A first guide rail 38 extending vertically is arranged on each of the rear columns. First sliders 35 are respectively fixedly arranged at the left and right ends of the back plate 32. The two first sliders 35 are respectively slidably connected to the two first guide rails 38. The first limiting member 33 includes a limiting block 331 slidably connected to the first slider 35 and located below the first slider 35, and a screw 332 threadedly connected to the limiting block 331. The screw 332 abuts against the first guide rail 38, so that the limiting block 331 is fixed to the first guide rail 38.

[0028] In some embodiments, a vertically distributed scale 36 is further arranged on the rear column. It provides a reliable dimensional position for the up and down adjustment of the back plate 32.

[0029] In some embodiments, an external thread is provided on the outer periphery of the positioning bushing 34, and it is locked on the back plate 32 by a nut 37. The positioning bushing 34 has a detachable structure, and positioning bushings 34 of different sizes can be replaced according to different specifications of the contact arm 6.

[0030] In some embodiments, the second bracket 21 includes two front columns arranged at intervals left and right. A second guide rail 26 extending vertically is provided on each of the front columns. Second sliders 25 are respectively fixedly arranged at the left and right ends of the cross bar 22, and the second sliders 25 at both ends are respectively slidably connected to the two second guide rails 26. The second limiting member 23 includes a locking plate 231 fixedly installed on the front column and an automatic spring bolt 232 fixedly installed on the cross bar 22. The locking plate 231 has two upper and lower holes 2321. When the automatic spring bolt 232 is respectively inserted into the two holes 2321, the support block 24 is in an upward or downward movement state. Among them, the automatic spring bolt 232 is used for position locking, and the operation is more efficient and convenient, saving working hours.

[0031] In some embodiments, a long groove 221 with an upward opening is provided in the middle of the cross bar 22. The support block 24 is installed in the long groove 221 and locked by screws. A V-shaped opening 241 is provided on the support block 24.

[0032] In some embodiments, the horizontal guiding mechanism 4 includes two third guide rails 41 installed on the base 1 at intervals left and right for the traveling trolley 5. The third guide rails 41 extend in the front-rear direction. The outer sides of the two third guide rails 41 are of an open structure. A limiting frame 42 protruding upward is provided at the end of the third guide rail 41, and a guiding block 43 is provided on the inner side of the end of the third guide rail 41. The guiding block 43 is inclined inward. Refer to Figure 6 , it can be known that the rollers 51 of the trolley 5 include an integrally formed large wheel 511 and a small wheel 512. The small wheel 512 is formed on the third guide rail 41, and the large wheel 511 is located inside the third guide rail 41.

[0033] Among them, the outer sides of the third guide rails 41 are of an open structure, and the trolley 5 can be directly transferred onto the third guide rails 41 through a hoisting mechanism, which is convenient for transfer. And a limiting frame 42 is also provided on the third guide rails 41, which can effectively limit the maximum distance of the trolley 5 from being shaken in, so as to avoid damaging the contact arm 6 and the tooling positioning bushing 34 due to misoperation. Moreover, a guiding block 43 is also provided on the inner side of the third guide rail 41. When the trolley 5 is shaken to the assembly position, it ensures that the trolley 5 is in the central position to ensure the reliability of the assembly.

[0034] The working process and usage method of the switch cabinet contact arm assembly tooling in the above embodiment are briefly described as follows:

[0035] During assembly, adjust the height of the backplane 32 to a proper position so that the positioning bushings 34 on the backplane 32 can be positioned with the positions of the contact arms 6 to be installed on the handcart 5. Pull out the automatic spring latch 232, move the cross bar 22 upward to the upward movement state, release the automatic spring latch 232, and cooperate with the upper hole position 2321 on the locking plate 231 to fix the cross bar 22. Then, place the contact arms 6 to be installed on the support blocks 24 in sequence. The heads of the contact arms 6 extend into the positioning sleeves and stop when they touch the backplane 32. Transfer the handcart 5 to the third guide rail 41. The handcart 5 stops when it touches the limit frame 42. Under the action of the guide block 43, the handcart 5 is in the central position. Subsequently, assemble the handcart 5 and the contact arms 6.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A switch cabinet contact arm assembly tool, characterized in that: The invention comprises a base, a supporting mechanism and a positioning mechanism; the base is provided with a horizontal guiding mechanism for guiding the trolley to a preset position; the positioning mechanism comprises a first bracket fixedly mounted on the base, a back plate connected to the first bracket in a vertical sliding manner, a first limiter for fixing the back plate at a preset height, and a plurality of positioning sleeves fixedly mounted on the back plate, the positioning sleeves being used to be inserted into the port of the contact arm, and the end of the contact arm touches the back plate to form a limit; the supporting mechanism comprises a second bracket fixedly mounted on the base, a cross bar connected to the first bracket in a vertical sliding manner, a second limiter for fixing the cross bar at a preset vertical position, and a plurality of support blocks fixedly mounted on the cross bar, the support blocks having two states of upward movement and downward movement, and when the support blocks move upward, they are used to support the outer periphery of the contact arm so that the contact arm is coaxial with the positioning sleeve.

2. A switch cabinet contact arm assembly tool according to claim 1, characterized in that: The first bracket includes two rear columns spaced apart from each other, each of the rear columns is provided with a first guide rail extending vertically, first sliders are fixedly provided at the left and right ends of the back plate, the first sliders at the two ends are slidably connected to the two first guide rails, the first limiting member includes a limiting block slidably connected to the first slider and located below the first slider, and a screw threadedly connected to the limiting block, the screw presses against the first guide rail to fix the limiting block to the first guide rail.

3. A switch cabinet contact arm assembly tool according to claim 2, characterized in that: The rear column is also provided with a vertically distributed scale.

4. The switch cabinet contact arm assembly tool according to claim 1, characterized in that: The outer periphery of the positioning sleeve is provided with external threads and is locked on the back plate by a nut.

5. The switch cabinet contact arm assembly tool according to claim 1, characterized in that: The second bracket includes two front columns spaced apart on the left and right, each of the front columns is provided with a second vertically extending guide rail, the left and right ends of the cross bar are respectively fixed with second sliders, the second sliders at both ends are respectively slidably connected to the two second guide rails, the second limiter includes a locking plate fixedly mounted on the front column, and an automatic spring latch fixedly mounted on the cross bar, the locking plate has two upper and lower hole positions, when the automatic spring latch is respectively inserted into the two holes, the support block is in an upward or downward state.

6. The switch cabinet contact arm assembly tool according to claim 1, characterized in that: A long groove opening upward is provided in the middle of the crossbar, the support block is installed in the long groove and is locked by screws, and a V-shaped opening is provided on the support block.

7. The switch cabinet contact arm assembly tool according to claim 1, characterized in that: The horizontal guide mechanism includes two third guide rails installed on the base at intervals on the left and right for walking the trolley. The third guide rails extend in the front-to-back direction. The outer sides of the two third guide rails are open structures. An upwardly protruding limit frame is provided at the end of the third guide rail, and a guide block is provided on the inner side of the end of the third guide rail, and the guide block is inclined inward.

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