Auxiliary insert mechanism for arc chute automated forming processing

Abstract

The present invention belongs to the technical field of arc extinguishing grid forming and processing, and specifically relates to an auxiliary inserting mechanism for automatic forming and processing of arc extinguishing grid. The automatic forming and processing equipment of arc extinguishing grid comprises a frame, a steel sheet stamping and forming die, a material guide trough, a first cylinder, an inserting piece, a green steel paper feeding assembly, a second cylinder and a third cylinder; the material guide trough is arranged at the discharge end of the steel sheet stamping and forming die, and a first driving assembly is arranged on the side of the material guide trough for driving the first cylinder to reciprocate along the material guiding direction of the straight section material guide trough; the inserting piece is driven by the second driving assembly to move toward or away from the outlet of the material guide trough; the second and third cylinders are respectively arranged above and below the inserting piece, and are used to cut the green steel paper and rivet it to the steel sheet respectively; in the present invention, by arranging a roller above the inserting piece, when the steel sheet is inserted into the inserting piece and moves to the right with it, the roller rotates in coordination and completely presses the steel sheet into the inserting piece, thereby improving the stability of equipment operation.

Description

Technical Field

[0001] The invention belongs to the technical field of arc extinguishing grid forming and processing, and in particular relates to an auxiliary inserting piece mechanism for automatic arc extinguishing grid forming and processing. Background Art

[0002] Arc extinguishing grid is a widely used arc extinguishing method in low voltage circuit breakers. In the air, the arc is pulled into the arc extinguishing grid under the action of hot air flow or electromagnetic force, and the long arc is divided into multiple short arcs. The arc is extinguished by the principle of near cathode effect. The arc extinguishing grid is generally composed of multiple layers of steel sheets, and the multiple layers of steel sheets are connected by green steel paper to form an integrated structure.

[0003] The production of existing arc extinguishing grids is generally divided into two steps, namely, first punching the raw material into a single steel sheet, collecting the processed steel sheets, and then placing multiple steel sheets at intervals through another device and connecting and fixing them through green steel paper. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an auxiliary inserting mechanism for the automatic forming process of an arc extinguishing grid.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An auxiliary inserting mechanism for automatic forming and processing of arc extinguishing grids, used for automatic forming and processing equipment of arc extinguishing grids, the automatic forming and processing equipment comprising:

[0007] frame;

[0008] A steel sheet stamping forming die is arranged on the frame and is used to stamp the raw steel strip to form a steel sheet;

[0009] A guide trough is provided at the discharge end of the steel sheet stamping die, wherein the guide trough includes a straight section guide trough and an arc section guide trough, and is used to guide and limit the steel sheet formed by stamping;

[0010] A first cylinder is arranged below the material guide trough and the telescopic direction of the cylinder axis is in the vertical direction. A first driving assembly is arranged beside the material guide trough to drive the first cylinder to reciprocate along the material guiding direction of the straight section material guide trough;

[0011] An insert piece is arranged at the discharge end of the material guide chute, and the insert piece is driven by a second driving assembly arranged on the frame to move toward or away from the outlet of the material guide chute;

[0012] A green steel paper feeding assembly is arranged on the frame;

[0013] The second cylinder and the third cylinder are respectively arranged above and below the insert piece, and are used to cut the green steel paper above and below the insert piece and rivet them to a plurality of spaced steel sheets respectively;

[0014] A fourth cylinder is arranged beside the guide groove, the cylinder axis of the fourth cylinder is extended in a direction perpendicular to the moving direction of the insert, and is used to push out the arc chute after forming;

[0015] The auxiliary inserting mechanism comprises:

[0016] A mounting seat, which is arranged above the insert piece;

[0017] The roller is arranged on the mounting seat so as to be movable up and down and to roll freely. The lower edge of the roller is arranged adjacent to the upper side of the insert piece and when the steel sheet is inserted into the insert piece and moves with it, the edge of the roller pushes the steel sheet and makes it completely inserted into the insert piece.

[0018] Preferably, a roller bracket is provided on the mounting seat, a strip-shaped through hole is provided on the roller bracket, and a rotating shaft of the roller is inserted into the strip-shaped through hole.

[0019] Preferably, the first drive assembly includes a first servo motor and a first lead screw transmission-connected thereto, the length direction of the first lead screw is consistent with the guiding direction of the straight segment guide groove, and a first nut is sleeved on the first lead screw, and the first nut is fixedly connected to the first cylinder.

[0020] Preferably, a first guide rail is provided on the frame, a sliding sleeve is provided below the first cylinder, and the sliding sleeve is sleeved on the first guide rail and forms a guide limit fit therewith.

[0021] Preferably, the second driving assembly comprises a second servo motor and a second lead screw transmission-connected thereto, the second lead screw is sleeved with a second nut, and the second nut is fixedly connected to the insert piece;

[0022] When the second servo motor drives the second lead screw to rotate, the second nut drives the insert piece to move toward or away from the discharge end of the material guide groove.

[0023] Compared with the prior art, the present invention has the following technical effects:

[0024] The auxiliary inserting mechanism for the automatic forming processing of the arc extinguishing grid provided by the present invention moves up and down above the inserting piece through the roller, and the mechanism itself can rotate. When the steel sheet is inserted into the inserting piece and moves to the right with the inserting piece, the roller rotates in coordination and presses the steel sheet completely into the inserting piece, thereby avoiding interference between the steel sheet that is not completely inserted into the inserting piece and the surrounding equipment, thereby improving the stability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of the automated forming and processing equipment for the arc quenching grid provided by the present invention;

[0026] Figure 2 for Figure 1 Side view of the automated forming and processing equipment for the middle arc quenching grid;

[0027] Figure 3 for Figure 2 A magnified schematic diagram of position A in the middle;

[0028] Figure 4 It is a structural schematic diagram of the insert piece in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the second and third cylinders riveting and connecting the steel sheet and the green steel paper in the present invention;

[0030] Explanation of the numbers in the figure: 1-steel sheet stamping mold, 2-steel sheet, 3-green steel paper feeding assembly, 4-green steel paper, 10-frame, 101-first guide rail, 11-guide trough, 111-straight segment guide trough, 112-arc segment guide trough, 14-second cylinder, 15-third cylinder, 16-fourth cylinder, 17-first cylinder, 171-sleeve, 18-locating needle, 19-push block, 20-insert piece, 201-insert piece body, 202-slot, 30-first servo motor, 31-first lead screw, 311-first nut, 40-second servo motor, 41-second lead screw, 411-second nut, 50-mounting seat, 501-strip through hole, 51-roller. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific drawings.

[0032] It should be noted that, in the present invention, when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] The present invention provides an auxiliary inserting mechanism for the automatic forming and processing of arc extinguishing grids, which is used in the automatic forming and processing equipment of arc extinguishing grids. Figure 1 , 2 As shown, in the present invention, the automated forming processing equipment includes a frame 10, a steel sheet stamping forming die 1, a material guide trough 11, a first cylinder 17, an insert 20, a green steel paper feeding assembly 3, a second cylinder 14 and a fourth cylinder 16;

[0035] The frame 10 mainly plays a supporting role and is used to support components such as the steel sheet stamping forming mold 1, the material guide trough 11, the first cylinder 17, the insert piece 20, the green steel paper feeding assembly 3, the second cylinder 14 and the fourth cylinder 16.

[0036] The steel sheet stamping die 1 is mainly used for stamping raw steel strips, and is arranged on a frame 10 to stamp the raw steel strips to form steel sheets 2. The present invention does not specifically limit the structure of the steel sheet stamping die 1, and the existing die structure can be used.

[0037] The guide trough 11 is arranged at the discharge end of the steel sheet stamping forming die 1, and the guide trough 11 includes a straight section guide trough 111 and a circular arc section guide trough 112, which are used to guide and limit the stamped steel sheet 2; the first cylinder 17 is arranged below the guide trough 11 and the telescopic direction of its cylinder axis is the vertical direction, and a first driving component is provided beside the guide trough 11 for driving the first cylinder 17 to reciprocate along the guiding direction of the straight section guide trough 111;

[0038] The insert piece 20 is arranged at the discharge end of the material guide trough 11, and the insert piece 20 is driven by a second driving assembly arranged on the frame 10 to move toward or away from the outlet of the material guide trough 11;

[0039] Specifically, the insert 20 is used to pre-position the plurality of steel sheets 2 constituting the arc extinguishing grid. Figure 4As shown, the insert piece 20 includes an insert piece body 201 and a plurality of slots 202 with openings pointing upwards arranged on the insert piece body 201. When the second driving component drives the insert piece 20 to move in a direction away from the outlet of the guide groove 11, the steel sheets 2 falling from the guide groove 11 are inserted into the slots 202 one by one. In order to ensure that the steel sheets 2 can be stably and reliably inserted into the slots 202, the end tangent of the circular arc section guide groove 112 has an inclination angle of 80°-85° with the horizontal direction. In this way, the steel sheets 2 guided out through the circular arc section guide groove 112 are arranged in an inclined manner as a whole, and the moving insert piece 20 can more stably realize the insertion of the steel sheets 2.

[0040] The green steel paper feeding assembly 3 is arranged on the frame 10 , and the green steel paper feeding assembly 3 is used for feeding green steel paper 4 .

[0041] The second cylinder 14 and the third cylinder 15 are respectively arranged above and below the insert 20, and are used to cut the green steel paper 4 above and below the insert 20 and riveted to a plurality of spaced steel sheets 2 respectively; specifically, in combination with Figure 5 As shown, the second cylinder 14 and the third cylinder 15 are mainly used to provide power, and cooperate with the positioning needle 18 and the push block 19 arranged on the corresponding cylinder shaft. When the cylinder shafts of the second cylinder 14 and the third cylinder 15 are extended, the positioning needle 18 cuts off the green steel paper 4, and the push block 19 pushes the green steel paper 4, and rivets it to the steel sheets 2 stacked at intervals to fix them into one.

[0042] The fourth cylinder 16 is disposed beside the guide groove 11 , and the extension direction of the cylinder axis of the fourth cylinder 16 is perpendicular to the moving direction of the insert 20 , and is used to push out the arc extinguishing grid after molding.

[0043] Combination Figure 3 As shown, the auxiliary insert mechanism includes a mounting seat 50 and a roller 51, the mounting seat 50 is arranged above the insert piece 20, and the roller 51 can move up and down and is freely rolled on the mounting seat 50, the lower edge of the roller 51 is arranged adjacent to the upper side of the insert piece 20, and when the steel sheet 2 is inserted into the insert piece 20 and moves therewith, the edge of the roller 51 pushes the steel sheet 2 and makes it completely inserted into the insert piece 20.

[0044] The arc extinguishing grid automatic forming processing equipment provided by the present invention, in a specific working process, the servo feeder cooperates with the stamping movement of the steel sheet stamping forming mold 1 to feed the material, and pushes the stamped steel sheet 2 into the guide groove 11. The cylinder shaft of the first cylinder 17 extends out and holds the steel sheet 2 located in the guide groove 11. At this time, the first driving component drives the first cylinder 17 to move from left to right, driving the steel sheet 2 in the guide groove 11 to move along the direction defined by the guide groove 11. At the same time, the second driving component drives the insert 20 to move from left to right to supply the steel sheets 2 in the guide groove 11 one by one. Insert it into the insert piece 20, and after the insertion is completed, the second drive assembly drives the insert piece 20 to continue to move right to the riveting station between the second cylinder 14 and the third cylinder 15. At the same time, the first drive assembly drives the first cylinder 17 to quickly reset; then the second cylinder 14 and the third cylinder 15 act at the same time to cut off the green steel paper 4 and rivet it to the spaced steel sheet 2 to fix it. After the riveting is completed, the second drive assembly drives the insert piece 20 again to quickly reset it and move it further to the left, and then the fourth cylinder 16 acts to push the processed arc extinguishing grid product out of the insert piece 20.

[0045] In the automated forming and processing equipment provided by the present invention, the forming and processing efficiency of the arc extinguishing grid is improved by connecting the stamping forming of the steel sheet 2 and the riveting connection process of the steel sheet 2 and the green steel paper 4 in series. The forming and processing equipment can realize fully automated production, which is beneficial to reducing the production cost of the arc extinguishing grid.

[0046] In the automatic forming processing equipment provided by the present invention, the combination of the straight section guide trough 111 and the arc section guide trough 112 can not only stably output the steel sheet 2 processed by the steel sheet stamping forming die 1, but also pre-position the steel sheet by using the arc section guide trough 112 and the insert piece 20 arranged at the outlet thereof. The automatic forming processing equipment is ingeniously designed and simple in structure.

[0047] In the present invention, by setting an auxiliary inserting mechanism, the roller 51 can move up and down above the inserting piece 20, and it can rotate itself. When the steel sheet 2 is inserted into the inserting piece 20 and moves to the right with the inserting piece 20, the roller 51 rotates and completely presses the steel sheet 2 into the inserting piece 20, thereby avoiding the steel sheet 2 that is not fully inserted into the inserting piece 20 from interfering with the surrounding equipment, thereby improving the stability of the equipment operation.

[0048] Furthermore, in the present invention, as a specific arrangement of the roller 51, a roller bracket is provided on the mounting seat 50, and a strip-shaped through hole 501 is provided on the roller bracket. The rotating shaft of the roller 51 is inserted into the strip-shaped through hole 501. Specifically, it can be seen from the accompanying drawings that the strip-shaped through hole 501 extends in the up and down directions. When the wheel rim of the roller 51 squeezes the steel sheet 2, it itself can move in the up and down directions.

[0049] Further, according to the present invention, in the present invention, the function of the first driving component is to drive the first cylinder 17 to move along the straight segment guide groove 11. Specifically, the first driving component includes a first servo motor 30 and a first lead screw 31 connected to the first servo motor 30. The length direction of the first lead screw 31 is consistent with the guiding direction of the straight segment guide groove 111, and a first nut 311 is sleeved on the first lead screw 31. The first nut 311 is fixedly connected to the first cylinder 17.

[0050] Furthermore, in order to improve the stability of the first cylinder 17 during reciprocating movement, a first guide rail 101 is provided on the frame 10, and a sliding sleeve 171 is provided below the first cylinder 17. The sliding sleeve 171 is sleeved on the first guide rail 101 and forms a guide limit fit therewith.

[0051] In the present invention, the function of the second driving component is to drive the insert piece 20 to move back and forth. The second driving component includes a second servo motor 40 and a second lead screw 41 transmission-connected thereto. The second lead screw 41 is sleeved with a second nut 411, and the second nut 411 is fixedly connected to the insert piece 20. When the second servo motor 40 drives the second lead screw 41 to rotate, the second nut 411 drives the insert piece 20 to move closer to or away from the discharge end of the guide groove 11.

[0052] The above shows and describes the basic principles, main features and characteristics of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. An auxiliary inserting mechanism for automatic forming and processing of arc extinguishing grid, used for automatic forming and processing equipment of arc extinguishing grid, characterized in that: The automated molding processing equipment includes: Rack (10); A steel sheet stamping and forming die (1), arranged on the frame (10), and used for stamping a raw steel strip to form a steel sheet (2); A material guide trough (11) is arranged at the discharge end of the steel sheet stamping die (1), the material guide trough (11) comprising a straight section material guide trough (111) and an arc section material guide trough (112), and is used to guide and limit the steel sheet (2) formed by stamping; A first cylinder (17) is arranged below the material guide trough (11) and the extension direction of the cylinder axis is in the vertical direction. A first driving assembly is provided beside the material guide trough (11) for driving the first cylinder (17) to reciprocate along the material guiding direction of the straight section material guide trough (111); An insert piece (20) is arranged at the discharge end of the material guide chute (11), and the insert piece (20) is driven by a second driving assembly arranged on the frame (10) to move in a direction close to or away from the outlet of the material guide chute (11); A green steel paper feeding assembly (3) is arranged on the frame (10); The second cylinder (14) and the third cylinder (15) are respectively arranged above and below the insert piece (20) and are used to cut the green steel paper (4) above and below the insert piece (20) and respectively rivet them to a plurality of spaced steel sheets (2); A fourth cylinder (16) is arranged beside the material guide groove (11), the cylinder axis of the fourth cylinder (16) has a telescopic direction perpendicular to the moving direction of the insert piece (20), and is used to push out the arc extinguishing grid after forming; The auxiliary inserting mechanism comprises: A mounting seat (50) disposed above the insert piece (20); A roller (51) is arranged on the mounting seat (50) so as to move up and down and to roll freely, the lower edge of the roller (51) being arranged adjacent to and spaced from the upper side of the insert piece (20), and when the steel sheet (2) is inserted into the insert piece (20) and moves therewith, the edge of the roller (51) pushes the steel sheet (2) and causes it to be completely inserted into the insert piece (20); A first guide rail (101) is provided on the frame (10), a sliding sleeve (171) is provided below the first cylinder (17), and the sliding sleeve (171) is sleeved on the first guide rail (101) and forms a guide limit fit therewith; The second driving assembly comprises a second servo motor (40) and a second lead screw (41) transmission-connected thereto, a second nut (411) being sleeved on the second lead screw (41), and the second nut (411) being fixedly connected to the insert piece (20); When the second servo motor (40) drives the second lead screw (41) to rotate, the second nut (411) drives the insert piece (20) to move closer to or farther from the discharge end of the material guide groove (11).

2. The auxiliary inserting mechanism for arc extinguishing grid automated forming processing according to claim 1, characterized in that: The mounting seat (50) is provided with a roller bracket, the roller bracket is provided with a strip-shaped through hole (501), and the rotating shaft of the roller (51) is inserted into the strip-shaped through hole (501).

3. The auxiliary inserting mechanism for arc extinguishing grid automated forming processing according to claim 1, characterized in that: The first driving assembly comprises a first servo motor (30) and a first lead screw (31) transmission-connected thereto, the length direction of the first lead screw (31) being consistent with the guide direction of the straight-segment guide groove (111), and a first nut (311) is sleeved on the first lead screw (31), and the first nut (311) is fixedly connected to the first cylinder (17).

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