CN102601251B - Centering device for positioning sheet material in automatic punching line - Google Patents

Abstract

The invention relates to a sheet material positioning and centering platform device used in a stamping automation line. The top surface of the frame of the device is slope-shaped, and two rows of roller strips are evenly distributed; the middle parts of the left and right sides of the frame are respectively equipped with rotating arm adjustment mechanisms, and the upper side and the lower side of the frame are respectively equipped with two rotating arms. Arm adjustment mechanism; the bottom plate of the rotating arm adjustment mechanism is provided with a screw and a guide rail; one end of the screw is provided with a rotary encoder, and the other end is connected to a motor reducer; the guide rail is equipped with a positioning plate, and the positioning plate is provided with a screw Nut, movable arm and cylinder, the connecting rod end of the cylinder is connected to the middle and lower part of the movable arm; the movable arms of the arm adjustment mechanism on the left and right sides of the frame are respectively located in the distance between the two rows of roller bars; The movable arms of the arm adjusting mechanism at the upper and lower parts of the frame are correspondingly located in the gaps between the roller bars. The invention solves the problem that the special-shaped sheet cannot be stably positioned; the flapping positioning impact force of the rotating arm adjustment mechanism is small, and the damage to the edge of the sheet is reduced.

Description

Sheet metal positioning and centering device for stamping automation line

technical field

The invention belongs to the technical field of action execution of stamping automation equipment, and in particular relates to a plate positioning and centering platform device for stamping automation lines.

Background technique

At present, in order to ensure that the robot can accurately and stably grab the sheet and feed it to the stamping equipment every time, a centering device must be installed in front of the material robot on the automotive stamping automation line. The traditional centering device adopts gravity automatic positioning method. The rectangular table of this kind of centering table device has a large inclination angle with the horizontal plane along its diagonal line. Linear stoppers are set up on the two sides of the lower end respectively. Universal rollers are arranged on the table. The self-gravity slides to the lower end, and the two linear stops collide with the edge of the sheet, so that the sheet is positioned. This gravity centering device is suitable for the positioning of rectangular sheets, but cannot realize the stable positioning of non-rectangular special-shaped sheets, and the edge of the sheet is prone to collision damage.

Contents of the invention

In order to solve the technical problem of difficulty in the positioning of special-shaped sheet metal on the automobile stamping automation line, the invention provides a sheet material positioning centering device for the stamping automation line.

Concrete structure of the present invention is as follows:

The specific structure of the sheet metal positioning centering device used in the stamping automation line is as follows; the frame of the device is a cubic frame, and its top surface is slope-shaped, and two rows of roller bars are evenly distributed along the slope direction of the top surface of the frame. , one row of rollers is located on the top of the rack, and the other row of rollers is located on the lower part of the top of the rack, forming a roller slope. There is a gap between two rows of rollers; there is a gap between two adjacent rollers The roller bar includes a channel steel-shaped roller groove, and rollers are evenly distributed in the roller groove, and the rolling direction of the rollers is the slope direction at the top of the frame; Two rotating arm adjustment mechanisms are evenly distributed on the frame corresponding to the row of roller bars on the top surface of the top surface, and two rotating arm adjustment mechanisms are evenly distributed on the frame corresponding to the other row of roller bars on the lower part of the top surface of the frame; The arm adjustment mechanism includes a strip-shaped bottom plate, one side of the bottom plate is provided with a lead screw through the lead screw bracket, and the other side is provided with a guide rail; one end of the lead screw is provided with a rotary encoder, and the other end is connected to a motor. Reducer; positioning holes are evenly distributed on the guide rail, and a positioning plate is provided on the guide rail. On one side of the positioning plate, there is a lead screw nut that cooperates with the lead screw, and on the other side, the front part is provided with a movable rotating shaft through the support plate. There is a cylinder at the rear of the other side, and the connecting rod end of the cylinder is connected to the middle and lower part of the movable arm; the movable arms of the arm adjustment mechanism on the left and right sides of the frame correspond to each other, and are located between the two rows of roller bars within the interval; the movable arms of the two boom adjustment mechanisms on the top of the rack correspond to the movable arms of the two boom adjustment mechanisms on the lower part of the rack top, and the movable arms are located between the roller bars within the gap.

The included angle between the inclined surface of the roller bar and the horizontal plane is 7-10 degrees.

Proximity switches A are provided on the upper parts of the movable arms of the two arm adjustment mechanisms corresponding to a row of roller bars on the lower part of the frame top surface.

A proximity switch B is provided on the lead screw bracket.

The distance between two rows of roller bars is 100mm; the gap between two adjacent roller bars 1 is 100mm.

Beneficial technical effect of the present invention is embodied in the following aspects:

1. The position of the movable arm of the present invention can be adjusted along the guide rail, which solves the problem that the special-shaped sheet cannot be positioned stably, and is especially suitable for the stamping automation line for the collinear production of multi-variety special-shaped sheets;

2. The slapping positioning action of the arm adjustment mechanism is driven by the cylinder assembly, and the slapping impact is small, which effectively alleviates the impact force of the arm adjustment mechanism on the edge of the sheet, and overcomes the traditional gravity centering table's linear stopper that is easy to damage the sheet fringe flaws;

3. Two proximity switches are used to limit the limit position of the straight-line movement of the rotary arm adjustment mechanism, and the rotary encoder records the position parameters of the rotary arm adjustment mechanism. When the sheet is produced again, this position parameter can be directly called to facilitate the automation of the centering platform .

Description of drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a sectional view along A-A of Fig. 1 .

Figure 3 is an enlarged view of the roller bar.

Figure 4 is an axonometric view of the arm adjustment mechanism.

Fig. 5 is an axonometric view of the present invention when it is used for positioning special-shaped sheet metal.

Serial number in the above picture: Roller bar 1, U-shaped bracket 2, frame 3, Y direction right front swing arm adjustment mechanism 4, adjustment block 5, Y direction left front swing arm adjustment mechanism, X direction left swing arm adjustment mechanism 7, Y direction Left rear arm adjustment mechanism 8, Y to right rear arm adjustment mechanism 9, X to right arm adjustment mechanism 10, sheet material 11, motor reducer 41, cylinder 42, movable arm 43, proximity switch A44, guide rail 45 , Lead screw 46, rotary encoder 47, lead screw bracket 48, base plate 49, proximity switch B50.

Detailed ways

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

Example:

Referring to Fig. 1, the frame 3 used for the sheet metal positioning and centering device of the stamping automation line is a cubic frame, and its top surface is slope-shaped. Roller bar 1, one row of roller bars is located at the upper part of the frame top surface, and the other row of roller bars is located at the lower part of the frame top surface, forming a roller bar slope, and the included angle between the roller bar slope and the horizontal plane is 7 degrees. The distance between two rows of roller bars is 100mm; the gap between two adjacent roller bars 1 is 100mm; the roller bars include channel steel-shaped roller grooves, and rollers are evenly distributed in the roller grooves, and the rolling direction of the rollers is The direction of the slope at the top of the rack. Adjustment blocks 5 are installed at the bottom of each leg of the frame 3; rotating arm adjustment mechanisms are respectively installed in the middle parts of the left and right sides of the frame, that is, the X-direction left rotation arm adjustment mechanism 7 and the X-right rotation arm adjustment mechanism 10, which are connected with the top surface of the frame. The rack corresponding to the row of roller bars on the upper part is evenly equipped with two pivoting arm adjustment mechanisms, that is, the Y-towards left rear pivoting arm adjustment mechanism 8 and the Y-towards right rear pivoting arm adjustment mechanism 9, which are separated from the lower part of the top surface of the rack. The frame corresponding to a row of roller bars is evenly equipped with two pivoting arm adjustment mechanisms, that is, the Y front pivoting arm adjustment mechanism 6 and the Y front right pivoting arm adjustment mechanism 4 . The basic structures of the six pivoted arm adjustment mechanisms are the same. The pivoted arm adjustment mechanism includes a strip-shaped bottom plate 49 , one side of the bottom plate 49 is provided with a leading screw 46 through a leading screw bracket 48 , and the other side is fixedly equipped with a guide rail 45 . One end of the lead screw 46 is equipped with a rotary encoder 47 , and the other end is connected with a motor reducer 41 . Positioning holes are evenly distributed on the guide rail 45, and a positioning plate is installed on the guide rail 45. A screw nut that cooperates with the lead screw 46 is installed on one side of the positioning plate, and a movable arm 43 is installed on the front of the other side through a support plate. , the other side rear portion is equipped with cylinder 42, and the connecting rod end of cylinder 42 is connected with the middle and lower part of movable pivot arm 43. X corresponds to the movable arm of the left arm adjustment mechanism 7 and the movable arm of the X right arm adjustment mechanism 10, and is located in the space between the two rows of roller bars; Y on the top surface of the frame is left rear The movable boom of the boom adjustment mechanism 8, the movable boom of the Y-to-right rear boom adjustment mechanism 9, and the Y-to-left front boom adjustment mechanism 6's movable boom and Y-to-right front boom adjustment mechanism at the lower part of the frame top surface The movable rotating arms of 4 correspond respectively, and the four movable rotating arms are all positioned at the gap between the roller bars. Proximity switch A44 is installed respectively to the movable pivoted arm of Y front pivoted arm adjustment mechanism 6 to the left and the movable pivoted arm top inner side of Y right front pivoted arm adjustment mechanism 4. Proximity switches B50 are installed on the leading screw brackets 48 of all boom adjustment mechanisms.

Referring to Fig. 5, the movable arm of the Y-towards left front arm adjustment mechanism 6 and the movable arm of the Y-to-right front arm adjustment mechanism 4 are always in a state of 90° with respect to their respective bottom plates. At this time, the centering platform is in a ready state; X to the movable arm of the left arm adjustment mechanism 7, X to the movable arm of the right arm adjustment mechanism 10, Y to the movable arm of the left rear arm adjustment mechanism 8 and Y to the right rear arm adjustment mechanism 9 The movable arms are inclined at a 45° angle relative to their respective base plates and are located below the ramps of the roller bars. When the sheet material 11 enters the roller bar slope, the proximity switch A of the Y-to-left front arm adjustment mechanism 6 and the proximity switch A on the Y-to-right front arm adjustment mechanism 4 detect the signal of the sheet material 11, and the X-to-left arm adjustment mechanism 7, X to the movable arm of the right pivoted arm adjustment mechanism 10, Y to the movable pivoted arm of the left rear pivoted arm adjustment mechanism 8 and Y to the movable pivoted arm of the right rear pivoted arm adjustment mechanism 9 in the respective cylinders Under the action, it rotates from 45° inclination angle to 90° angle with respect to the respective bottom plates to complete the beating action and realize the positioning of the sheet material 11.

As can be seen from Figure 4, the motor reducer 41 drives the lead screw 46 to rotate, and the cooperation of the lead screw nut and the lead screw on the positioning plate drives the movable arm 43 to realize linear reciprocating motion along the guide rail 45, and the proximity switch B50 on the lead screw bracket limits The limit position of the linear movement of the movable arm 43, the rotary encoder 47 records the position parameter of the movable arm 43, and this position parameter can be directly called when producing the sheet material 11 of the same specification again, so that the centering station can realize automatic centering.

Claims (5)

1. for the plate of punching automation line, locate alignment table device, it is characterized in that: the frame of this device is cube frame, its end face is ramped shaped, slope direction along frame end face is laid with two row's roller bars, one row's roller bars is positioned at frame end face top, another row's roller bars is positioned at frame end face bottom, forms roller bars inclined-plane, between two row's roller bars, is provided with spacing; Between adjacent two roller bars, be provided with gap; Described roller bars comprises the roller groove of channel-section steel shape, is laid with roller in roller groove, the slope direction that the rotating direction of roller is frame top; Middle part, the frame left and right sides is respectively equipped with pivoted arm guiding mechanism, in the frame corresponding with row's roller bars on frame end face top, be laid with two pivoted arm guiding mechanisms, in the frame corresponding with another row's roller bars of frame end face bottom, be laid with two pivoted arm guiding mechanisms; Described pivoted arm guiding mechanism comprises the base plate of strip, and on described base plate, a side is provided with leading screw by leading screw support, and opposite side is provided with guide rail; One end of described leading screw is provided with rotary encoder, and the other end is connecting motor reducer; The uniform locating hole that offers on described guide rail, on guide rail, coordinate and be provided with location-plate, on location-plate, a side is provided with the feed screw nut coordinating with leading screw, and opposite side front portion is provided with movable rotation arm by support plate, opposite side rear portion is provided with cylinder, and the connecting-rod head of cylinder is connecting the middle and lower part of movable rotation arm; The movable rotation arm of the pivoted arm guiding mechanism of the frame left and right sides is corresponding respectively, and in the spacing between two row's roller bars; The movable rotation arm that the movable rotation arm of two pivoted arm guiding mechanisms on frame end face top and frame are pushed up basifacial two pivoted arm guiding mechanisms is corresponding respectively, and movable rotation arm is all in the gap between roller bars.

2. the plate for punching automation line according to claim 1 location alignment table device, is characterized in that: the angle between described roller bars inclined-plane and horizontal plane is 7～10 degree.

3. the plate for punching automation line according to claim 1 location alignment table device, is characterized in that: the movable rotation arm top of two the pivoted arm guiding mechanisms corresponding with basifacial another row's roller bars in frame top is provided with approach switch A.

4. the plate for punching automation line according to claim 1 location alignment table device, is characterized in that: described leading screw support is provided with approach switch B.

5. the plate for punching automation line according to claim 1 location alignment table device, is characterized in that: the spacing between two row's roller bars is 100 ㎜; Gap between adjacent two roller bars 1 is 100 ㎜.

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