CN106505414B - An automatic clamping and conveying device for the busbar of a power distribution cabinet - Google Patents

Abstract

The invention relates to an automatic clamping and conveying device for a power distribution cabinet bus, which comprises a substrate, wherein two first linear slide rails are arranged on the upper end surface of the substrate, a moving column is arranged on each first linear slide rail, a moving die is arranged at the upper ends of the two moving columns of the two first linear slide rails, a first lead screw is arranged in the middle of the moving die through threads, a hand wheel is arranged at the left end of the first lead screw, a fixed die is arranged at the right end of the first lead screw through a bearing, two fixed posts are symmetrically welded on the rear end surface of the fixed die, and the lower ends of the two fixed posts are arranged on; two mounting panels are installed to the up end of base plate, and two guiding axles are installed to the symmetry between two mounting panels, are located and install No. two screws through the bearing on the left mounting panel inner wall of base plate, and the right-hand member of No. two screws installs the moving motor through the shaft coupling. The automatic clamping and conveying device can realize the automatic clamping and conveying function of the bus of the power distribution cabinet, and has the advantages of high clamping and conveying speed, high automation degree, high working efficiency and the like.

Description

An automatic clamping and conveying device for the busbar of a power distribution cabinet

technical field

The invention relates to the technical field of distribution cabinets, in particular to an automatic clamping and conveying device for a busbar of a distribution cabinet.

Background technique

The power distribution cabinet is a kind of electrical equipment. It is the general control center of various electrical appliances. It provides protection, monitoring and control for various electrical appliances. It is also an indispensable power distribution auxiliary equipment for automated production. The main structure includes cabinets, instruments, and busbars. , busbar, grounding busbar and electrical components and other components, among which the busbar is the conductor for the collection, distribution and transmission of electrical energy by various electrical components, so the quality of the busbar directly affects the working performance of the power distribution cabinet. Among the existing types of busbars The most widely used is the copper busbar. The copper busbar is mainly composed of a conductive ring with an Ω-shaped structure at both ends and a flat copper busbar wire in the middle. The busbar usually requires quality inspection before application. The quality inspection mainly includes: For conductivity detection and surface damage detection, the current busbar quality inspection is mainly manual inspection of auxiliary tooling. This manual busbar inspection method has the following defects: it is necessary to manually take the busbar from the collection box with wire clamps and place it on the auxiliary tooling. Inspection, this manual clamping and placement method has defects such as complicated operation, high labor intensity, slow clamping and placement speed, low degree of automation, and low work efficiency.

Contents of the invention

In order to solve the above problems, the present invention provides an automatic clamping and conveying device for the busbar of the power distribution cabinet, which can solve the problems of complicated operation, high labor intensity, slow clamping and placement speed and low degree of automation existing in the manual detection method of the busbar of the power distribution cabinet and low work efficiency, it can realize the automatic clamping and conveying function of the busbar of the power distribution cabinet. It is easy to operate and does not require manual operation. It has the advantages of fast clamping and conveying speed, high degree of automation and high work efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions: an automatic clamping and conveying device for the busbar of a power distribution cabinet, including a base plate, two No. 1 linear slide rails are installed on the upper surface of the base plate, each A moving column is installed on the slide rails, and a moving mold is installed on the upper ends of the two moving columns of the two No. 1 linear slide rails. The middle part of the moving mold is installed with a No. 1 screw through the thread, and the left end of the No. 1 screw is provided with a hand wheel. The right end of the No. 1 lead screw is installed with a fixed mold through a bearing. The rear end of the fixed mold is symmetrically welded with two fixed columns. The lower ends of the two fixed columns are installed on the base plate. The two fixed columns play the role of fixing and supporting the fixed mold. Workers drive the No. 1 screw to rotate on the fixed mold through the hand wheel, and the No. 1 screw drives the fixed mold to move, and the fixed mold moves smoothly on the two No. The distance between the molds makes the present invention suitable for busbar blanking of different lengths. At the same time, the hand wheel in the present invention can also be replaced by an existing servo motor for direct drive to realize automatic adjustment of the distance between the fixed mold and the movable mold; The inner wall of the movable mold is provided with a No. 1 cavity, and the inner wall of the fixed mold is provided with a No. 2 cavity corresponding to the No. 1 cavity. The No. 1 cavity and the No. 2 cavity serve as the feeding channel for the busbar. A first lifting guide mechanism is installed on the outer wall of the mold, and a second lifting guide mechanism corresponding to the first lifting guide mechanism is installed on the outer wall of the fixed mold. No. 1 cavity and No. 2 cavity blanking busbar, and then the busbar is lifted and transported to the specified height through the first lifting guide mechanism and the second lifting guide mechanism; two mounting plates are installed on the upper end of the base plate, two There are two guide shafts installed symmetrically between the mounting plates. The No. 2 screw is installed on the inner wall of the mounting plate on the left side of the base plate through a bearing. The right end of the No. 2 screw is equipped with a moving motor through a coupling. The moving motor passes through the motor seat It is installed on the inner wall of the mounting plate on the right side of the base plate, and the No. 2 screw is located between the two guide shafts; the No. 2 screw is threaded with a moving block, and the upper and lower ends of the moving block are separated by sliding fit. Installed on two guide shafts, the two guide shafts play a limited auxiliary movement, so that the moving block can move smoothly and horizontally without turning. With the help of the limited position, the No. 2 lead screw drives the moving block to move stably from side to side; the inner wall of the moving block is equipped with a clamping mechanism, which can move left and right on the moving block. Clamp the busbar that is lifted and transmitted by the first lifting guide mechanism and the second lifting guide mechanism. The clamping mechanism includes two No. 2 hydraulic cylinders installed on the inner wall of the moving block. The middle parts of the two No. 2 hydraulic cylinders are fixed on the fixed frame. Above, the fixed frame is welded on the inner wall of the moving block, and the fixed frame plays the role of fixing and supporting the two No. 2 hydraulic cylinders. The tops of the two No. The clamping base plate is stably driven to perform telescopic movement. The inner wall of the clamping base plate is welded with a fixed splint. Two clamping support plates are symmetrically installed on the inner wall of the clamping base plate. Each clamping support plate has a Two No. 3 hydraulic cylinders are installed, and the top of the four No. 3 hydraulic cylinders holding the support plate is equipped with a movable splint through the flange. The movable splint is stably driven by the four No. 3 hydraulic cylinders to move up and down, thereby adjusting the movable splint. The distance between the fixed splint and the clamping force formed between the movable splint and the fixed splint automatically clamps the transmitted busbar, and the two sides of the lower end of the movable splint are respectively connected to the two clamping support plates through two buffer springs , The buffer spring plays a good buffering role to prevent the phenomenon that the movable splint is too fast to damage the busbar copper bar.

As a preferred technical solution of the present invention, the No. 1 mold cavity penetrates from the upper end surface of the movable mold to the lower end surface, and the No. 2 mold cavity penetrates from the upper end surface of the fixed mold to the lower end surface. The No. 1 mold cavity and the No. 2 mold cavity are The Ω-shaped structure with equal shape and size makes the structures of the No. There is a guide formwork extending obliquely outward. The guide formwork is an Ω-shaped structure corresponding to the No. 1 cavity and the No. 2 cavity. On the inner wall of the mold base, it can automatically slide into the No. 1 mold cavity and the No. 2 mold cavity by means of the inclined extension structure of the guide mold base, thereby improving the efficiency of busbar blanking.

As a preferred technical solution of the present invention, the shape, structure and size of the first lifting guide mechanism and the second lifting guide mechanism are the same, and the first lifting guide mechanism and the second lifting guide mechanism are the same mechanism, which is convenient for synchronous movement , the first lifting guide mechanism includes a guide base block welded on the outer wall of the movable mold, on which there is a No. 1 hydraulic cylinder, and the middle part of the No. 1 hydraulic cylinder is fixed on the guide fixed plate, which is welded on the outer wall of the movable mold , the guide fixed plate plays the role of fixing and supporting the middle part of the No. 1 hydraulic cylinder. The top of the No. 1 hydraulic cylinder is equipped with a lifting plate through the flange, and the right end of the lifting plate is just below the No. 1 cavity. Drive the lifting plate to carry out the lifting and lowering transmission work on the busbar.

As a preferred technical solution of the present invention, rubber pads are provided on the inner walls of the fixed splint and the movable splint, and the rubber pads play a role in protecting the surface of the busbar copper bars, preventing the clamping force between the fixed splint and the movable splint from being too high. A phenomenon that greatly damages the surface of the busbar copper bar.

When working, first determine the width between the fixed mold and the movable mold according to the length of the busbar. The operator drives the No. 1 screw to rotate on the fixed mold through the hand wheel, and the No. 1 screw drives the movable mold to move. The column moves smoothly on the two No. 1 linear slide rails, thereby adjusting the distance between the fixed mold and the moving mold, thereby adjusting the width between the No. 1 cavity and the No. 2 cavity. After the distance is adjusted, the busbar two The two ends of the busbar are put into the No. 1 and No. 2 mold cavities, and the two ends of the busbar pass through the No. 1 and No. 2 mold cavities and drop onto the first lifting guide mechanism and the second lifting guide mechanism respectively, and then the first lifting guide The mechanism and the second lifting guide mechanism start to work synchronously to lift and transmit the busbar to the specified height, and then the clamping mechanism starts to work, the two No. At the upper and lower ends of the bus bar, the four No. 3 hydraulic cylinders start to work at this time. Under the buffer force of the two buffer springs, the four No. 3 hydraulic cylinders drive the moving splint to move down slowly. The clamping force formed between clamps the middle part of the transmitted busbar. At this time, the two No. 2 hydraulic cylinders move and stretch back to the original position again, and then the moving motor starts to work, and the moving motor drives the No. 2 screw to rotate. With the help of the limited position, the No. 2 lead screw drives the moving block to move stably left and right, and the moving block drives the clamping mechanism to transfer the busbar to the designated position, so as to facilitate the next detection work and realize the automatic clamping of the busbar of the power distribution cabinet Conveying function, easy to operate, no manual movement, high degree of automation, fast clamping and conveying speed.

The beneficial effects of the present invention are: compared with the prior art, the present invention adjusts the distance between the fixed die and the movable die to an appropriate distance through the No. 1 screw, and the two ends of the bus bar can automatically slide into a The material is unloaded in the No. 1 cavity and the No. 2 cavity, and then automatically catches the busbar that is unloaded from the No. 1 cavity and the No. 2 cavity through the first lifting guide mechanism and the second lift guide mechanism and transports it downward to a suitable position. , then the clamping mechanism will automatically clamp the busbar, and finally, under the action of the moving motor, the No. 2 screw drives the moving block to move, and the moving block drives the clamping mechanism to move the busbar to a suitable position, realizing the automatic clamping of the busbar in the power distribution cabinet Holding and conveying function, easy to operate, no need for manual movement, high degree of automation, fast clamping and conveying speed, which solves the problems of complex operation, high labor intensity, slow clamping and placement speed, and low degree of automation existing in the existing manual detection method of the busbar of the power distribution cabinet and low work efficiency.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the first structural representation of the present invention;

Fig. 2 is the second structural representation of the present invention;

Fig. 3 is a structural schematic diagram of the clamping mechanism of the present invention.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

As shown in Figures 1 to 3, an automatic clamping and conveying device for the busbar of a power distribution cabinet includes a base plate 31. Two No. 1 linear slide rails 32 are installed on the upper surface of the base plate 31. A moving column 33 is installed on the 32, and the upper ends of the two moving columns 33 of the two No. 1 linear slide rails 32 are equipped with a moving mold 34, and the middle part of the moving mold 34 is threaded with a No. The left end is provided with a hand wheel 36, the right end of the No. 1 leading screw 35 is equipped with a fixed mold 37 through a bearing, and the rear end face of the fixed mold 37 is welded with two fixed columns 38 symmetrically, and the lower ends of the two fixed columns 38 are installed on the base plate 31. The fixed column 38 plays the role of fixing and supporting the fixed mold 37. The operator drives the No. 1 screw 35 to rotate on the fixed mold 37 through the hand wheel 36, and the No. 1 screw 35 drives the fixed mold 37 to move. The fixed mold 37 passes through two The moving column 33 moves smoothly on the two No. 1 linear slide rails 32, thereby adjusting the distance between the fixed mold 37 and the moving mold 34, so that the present invention is suitable for busbar blanking of different lengths, and the handwheel in the present invention 36 can also be replaced with existing servo motors and carry out direct drive to realize the automatic regulation of the distance between the fixed mold 37 and the movable mold 34; The No. 2 mold cavity corresponding to the No. 1 mold cavity, the No. 1 mold cavity and the No. 2 mold cavity are used as the feeding channel of the busbar, the first lifting guide mechanism 39 is installed on the outer wall of the movable mold 34, and the first lifting guide mechanism 39 is installed on the outer wall of the fixed mold 37. The second lifting guide mechanism 310 corresponding to the first lifting guide mechanism 39 is installed, and the bus bar that is unloaded from the first and second mold cavities is automatically caught by the first lifting guide mechanism 39 and the second lifting guide mechanism 310 , and then the busbar is lifted and transmitted to the specified height through the first lifting guide mechanism 39 and the second lifting guide mechanism 310; two mounting plates 311 are installed on the upper surface of the base plate 31, and two mounting plates 311 are symmetrically installed between them. A guide shaft 312, on the inner wall of the mounting plate 311 on the left side of the base plate 31, a No. 2 screw 313 is installed through a bearing, and a mobile motor 314 is installed on the right end of the No. 2 screw 313 through a coupling, and the mobile motor 314 is installed through a motor base On the inner wall of the mounting plate 311 located on the right side of the base plate 31, and the No. 2 lead screw 313 is located between the two guide shafts 312; the No. 2 lead screw 313 is threadedly equipped with a moving block 315, and the upper and lower sides of the moving block 315 The ends are respectively installed on two guide shafts 312 by sliding fit, and the two guide shafts 312 play a limited auxiliary movement, so that the moving block 315 can move smoothly and horizontally without turning. No. leading screw 313 rotates, and under the position-limiting assistance of two guide shafts 312, No. 2 leading screw 313 drives moving block 315 to stably move left and right; a clamping mechanism 316 is installed on the inner wall of said moving block 315, and the clamping mechanism 316 can move left and right on the moving block 315, and the present invention automatically clamps the first lifting guide mechanism 39 and the second lifting guide mechanism 310 through the clamping mechanism 316 and lifts them down. The clamping mechanism 316 includes two No. 2 hydraulic cylinders 3161 installed on the inner wall of the moving block 315, the middle parts of the two No. 2 hydraulic cylinders 3161 are fixedly installed on the fixed frame 3162, and the fixed frame 3162 is welded on the inner wall of the moving block 315 Above, the fixed frame 3162 plays the role of fixing and supporting the two No. 2 hydraulic cylinders 3161. The top of the two No. 2 hydraulic cylinders 3161 is equipped with a clamping base plate 3163 through the flange, and the two No. 2 hydraulic cylinders 3161 stably drive and clamp The base plate 3163 performs telescopic movement, and the inner wall of the clamping base plate 3163 is welded with a fixed splint 3164, and two clamping support plates 3165 are symmetrically installed on the inner wall of the clamping base plate 3163, and each clamping support plate 3165 is equipped with two three No. hydraulic cylinder 3166, four No. three hydraulic cylinders 3166 tops of two clamping support plates 3165 are equipped with movable splints 3167 through flanges, and four No. three hydraulic cylinders 3166 stably drive movable splints 3167 to move up and down, thereby adjusting the dynamic The distance between the clamping plate 3167 and the fixed clamping plate 3164 automatically clamps the transmitted bus through the clamping force formed between the movable clamping plate 3167 and the fixed clamping plate 3164. The two clamping support plates 3165 are connected, and the buffer spring 3168 plays a good buffering role to prevent the phenomenon that the moving splint 3167 is too fast and damages the busbar copper bars.

The No. 1 mold cavity penetrates from the upper end surface of the movable mold 34 to the lower end surface, and the No. 2 mold cavity penetrates from the upper end surface of the fixed mold 37 to the lower end surface. The No. 1 mold cavity and the No. 2 mold cavity are Ω-shaped with equal shape and size. structure, so that the structures of the No. 1 and No. 2 die cavities are the same as those of the two ends of the bus bar, so that the limit and precise cutting can be carried out, and the upper ends of the No. 1 and No. 2 die cavities are inclined outwards and provided with guide dies. Frame 341, the guide mold frame 341 is an Ω-shaped structure corresponding to the No. 1 mold cavity and the No. 2 mold cavity. , can automatically slide into the No. 1 mold cavity and the No. 2 mold cavity by means of the inclined extension structure of the guide mold frame 341, thereby improving the efficiency of busbar blanking.

The shape, structure, and size of the first lifting guide mechanism 39 and the second lifting guiding mechanism 310 are all the same, and the first lifting guiding mechanism 39 and the second lifting guiding mechanism 310 are the same mechanism, which is convenient for synchronous movement. 39 includes a guide base block 391 welded on the outer wall of the movable mold 34, a No. 1 hydraulic cylinder 392 is installed on the guide base block 391, the middle part of the No. 1 hydraulic cylinder 392 is fixed on the guide fixed plate 393, and the guide fixed plate 393 is welded on the movable mold On the outer wall of 34, the guide fixed plate 393 plays the role of fixing and supporting the middle part of the No. 1 hydraulic cylinder 392. The top of the No. 1 hydraulic cylinder 392 is equipped with a lifting plate 394 through the flange, and the right end of the lifting plate 394 is just at the top of the No. 1 cavity. Directly below, the lifting plate 394 is driven by the No. 1 hydraulic cylinder 392 to carry out the work of lifting and lowering the busbar.

Rubber pads are provided on the inner walls of the fixed splint 3164 and the movable splint 3167, and the rubber pads play a role in protecting the surface of the busbar copper bars, preventing the excessive force between the fixed splint 3164 and the movable splint 3167 from damaging the surface of the busbar copper bars The phenomenon.

When working, first determine the width between the fixed mold 37 and the movable mold 34 according to the length of the busbar, the operator drives the No. 1 screw 35 to rotate on the fixed mold 37 through the handwheel 36, and the No. 1 screw 35 drives the movable mold 34 to move , the moving mold 34 moves smoothly on the two No. 1 linear slide rails 32 through the two moving columns 33, thereby adjusting the distance between the fixed mold 37 and the moving mold 34, thereby adjusting the No. 1 mold cavity and the No. 2 mold cavity After the width and the distance are adjusted, put the two ends of the busbar into the No. 1 mold cavity and the No. 2 mold cavity. and the second lift guide mechanism 310, then the first lift guide mechanism 39 and the second lift guide mechanism 310 start to work synchronously to lift the busbar to the specified height, then the clamping mechanism 316 starts to work, and the two No. 2 hydraulic cylinders 3161 drive The clamping base plate 3163 performs a telescopic movement, and the clamping base plate 3163 drives the movable splint 3167 and the fixed splint 3164 to move to the upper and lower ends of the busbar copper bar. At this time, the four No. 3 hydraulic cylinders 3166 start to work, and the four No. 3 hydraulic cylinders 3166 Under the action of the buffering force of the two buffer springs 3168, the movable splint 3167 moves down slowly, and the middle part of the transmitted bus is clamped by the clamping force formed between the movable splint 3167 and the fixed splint 3164. At this time, the two No. 2 hydraulic pressure The cylinder 3161 moves and stretches back to the original position again, and then the moving motor 314 starts to work, and the moving motor 314 drives the No. 2 lead screw 313 to rotate. With the limit assistance of the two guide shafts 312, the No. 2 lead screw 313 drives the moving block 315 to move steadily. Moving left and right, the moving block 315 drives the clamping mechanism 316 to transfer the busbar to the designated position, so as to facilitate the next step of detection work, and realizes the automatic clamping and conveying function of the busbar of the power distribution cabinet, which is easy to operate, does not require manual movement, and has a high degree of automation , The clamping and conveying speed is fast, which solves the problems of complex operation, high labor intensity, slow clamping and placement speed, low degree of automation and low work efficiency existing in the existing manual detection method of the busbar of the distribution cabinet, and achieves the goal.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the specification only illustrate the principles of the present invention, and without departing from the spirit and scope of the present invention, the present invention will also There are various changes and improvements which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. conveying device is clamped in a kind of power distribution cabinet busbar automatically, it is characterised in that：Including substrate (31), the substrate (31) it is upper End face is equipped with two No.1 line slide rails (32), is mounted on a dynamic column (33) on every No.1 line slide rail (32), and two Two dynamic column (33) upper ends of root No.1 line slide rail (32) are equipped with dynamic model (34), are equipped with by screw thread in the middle part of dynamic model (34) The left end of No.1 leading screw (35), No.1 leading screw (35) is provided with handwheel (36), and the right end of No.1 leading screw (35) is installed by bearing There are cover half (37), the rear end face of cover half (37) to be symmetrically welded with two fixed columns (38), two fixed column (38) lower ends are mounted on substrate (31) on；It is provided with No.1 die cavity on the inner wall of the dynamic model (34), is provided on the inner wall of cover half (37) and No.1 die cavity phase Corresponding No. two die cavitys are equipped with the first lifting guide mechanism (39) on the outer wall of dynamic model (34), pacify on the outer wall of cover half (37) Equipped with the second lifting guide mechanism (310) corresponding with the first lifting guide mechanism (39)；The upper surface of the substrate (31) Installation is symmetrically installed with two guiding axis (312) there are two mounting plate (311) between two mounting plates (311), is located at substrate (31) No. two leading screws (313) are equipped with by bearing on mounting plate (311) inner wall on the left of, the right end of No. two leading screws (313) is logical It crosses shaft coupling and mobile motor (314) is installed, mobile motor (314) is mounted on the peace on the right side of substrate (31) by motor cabinet On loading board (311) inner wall, and No. two leading screws (313) are located between two guiding axis (312)；Lead on No. two leading screws (313) It crosses screw thread and movable block (315) is installed, the upper and lower ends of movable block (315) are separately mounted to two by sliding matching mode and lead To on axis (312)；Clamping device (316) is installed, clamping device (316) includes installation on the inner wall of the movable block (315) The middle part of two No. two hydraulic cylinders (3161) on movable block (315) inner wall, two No. two hydraulic cylinders (3161) is fixedly mounted On fixed frame (3162), fixed frame (3162) is welded on movable block (315) inner wall, the top of two No. two hydraulic cylinders (3161) End is equipped with clamping substrate (3163) by flange, and clamp plate (3164) is welded on the inner wall of clamping substrate (3163), is clamped It is symmetrically installed with two pieces of clamping support plates (3165) on substrate (3163) inner wall, is each clamped on support plate (3165) there are two being respectively mounted No. three hydraulic cylinders (3166), two pieces of four No. three hydraulic cylinder (3166) tops that support plates (3165) are clamped are equipped with dynamic by flange Support plates are clamped with two pieces respectively by two buffer springs (3168) in clamping plate (3167), the lower end both sides for moving clamping plate (3167) (3165) it is connected.

2. conveying device is clamped in a kind of power distribution cabinet busbar according to claim 1 automatically, it is characterised in that：The No.1 mould Chamber is through to lower face from dynamic model (34) upper surface, and No. two die cavitys are through to lower face, No.1 die cavity from cover half (37) upper surface It is the Ω type structures that shape, size are equal with No. two die cavitys, and No.1 die cavity and No. two die cavity upper ends are inclined outwardly extension It is provided with and is oriented to mould bases (341), being oriented to mould bases (341) is and No.1 die cavity and the corresponding Ω types structure of No. two die cavitys.

3. conveying device is clamped in a kind of power distribution cabinet busbar according to claim 1 automatically, it is characterised in that：Described first liter Shape, structure, the size all same of guiding mechanism (39) and the second lifting guide mechanism (310), the first lifting guide mechanism drop (39) include the guiding matrix (391) being welded on dynamic model (34) outer wall, be oriented on matrix (391) and No.1 hydraulic cylinder is installed (392), it is fixed on and is oriented on fixed board (393) in the middle part of No.1 hydraulic cylinder (392), be oriented to fixed board (393) and be welded on dynamic model (34) On outer wall, the top of No.1 hydraulic cylinder (392) is equipped with lifter plate (394) by flange, and the right end of lifter plate (394) is just Positioned at the underface of No.1 die cavity.

4. conveying device is clamped in a kind of power distribution cabinet busbar according to claim 1 automatically, it is characterised in that：The clamp plate (3164) and on the inner wall of dynamic clamping plate (3167) it is both provided with rubber pad.