CN212824089U - Workpiece clamping device - Google Patents

Abstract

The utility model discloses a work piece clamping device, including the fixed block, form two mutually perpendicular's terminal surface, the transfer line that can control the removal, one end is connected with first drive arrangement, and the other end is provided with first tight briquetting, first sticising the piece and keeping away from the one end of transfer line with the one end of fixed block sets up relatively, but the second of back-and-forth movement tight briquetting, and one end is connected with second drive arrangement, the other end with a side of fixed block sets up relatively, the tight briquetting of third that can reciprocate, set up in the below of fixed block, one end is connected with third drive arrangement, the other end with two terminal surfaces of fixed block first tight briquetting with the second sticiss the piece and encloses into the standing groove. Use the utility model discloses, can realize automatic centre gripping work piece to effectively improve centre gripping work piece's efficiency.

Description

Workpiece clamping device

Technical Field

The utility model relates to a machining's technical field, in particular to work piece clamping device.

Background

At present, to the processing of accurate hardware, generally need a clamping mechanism to press from both sides this work piece earlier, then carry out processing operations such as drilling and attack the tooth through processingequipment to this work piece, but current work piece clamping mechanism still needs artificial cooperation when using, can not realize automatic accurate clamp material, and it is lower to press from both sides material efficiency to can only process to a direction of work piece, thereby influence the holistic machining efficiency of work piece.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a workpiece clamping device can realize automatic centre gripping work piece to effectively improve the efficiency of centre gripping work piece.

According to the utility model provides a work piece clamping device is provided, include:

the fixing block is used for forming two end faces which are vertical to each other;

one end of the transmission rod capable of moving left and right is connected with the first driving device, the other end of the transmission rod is provided with a first pressing block, and one end, far away from the transmission rod, of the first pressing block is arranged opposite to one end of the fixing block;

one end of the second pressing block capable of moving back and forth is connected with the second driving device, and the other end of the second pressing block is arranged opposite to one side face of the fixing block;

and the third pressing block capable of moving up and down is arranged below the fixing block, one end of the third pressing block is connected with the third driving device, and the other end of the third pressing block, the two end faces of the fixing block, the first pressing block and the second pressing block form a placing groove in a surrounding mode.

According to the utility model discloses work piece clamping device has following beneficial effect at least: before the placing groove is placed into a workpiece, the distance between the first pressing block, the second pressing block and the third pressing block and the fixing piece is large, namely the placing groove is large in size, and the workpiece can be easily placed in the placing groove through the arrangement. After the workpiece is sent into the placing groove, under the action of the first driving device, the second driving device and the third driving device, the first pressing block and the second pressing block tightly fix the workpiece on the fixing block, then the third pressing block is far away from the workpiece, so that the lower part of the workpiece is suspended, and the workpiece can be sent to the processing module for processing. Because the first pressing block, the second pressing block and the third pressing block are respectively matched with the first driving device, the second driving device and the third driving device for use, the workpiece can be automatically clamped, the workpiece clamping efficiency is improved, and the overall machining efficiency of the workpiece is also improved.

According to some embodiments of the utility model, the fixed block is kept away from one side of first tight pressing block is provided with the stiff end, the second is sticis the piece and is included two mutually perpendicular's first tight pressing portion and second tight pressing portion, a terminal surface of first tight pressing portion with the fixed block sets up relatively, a side of second tight pressing portion with second drive arrangement's output shaft, the second sticis another side in the opposite direction with stiff end elastic connection.

According to some embodiments of the utility model, the third drive arrangement includes first drive structure, lever and fixing base, the fixing base sets up the below at lever middle part, and with lever rotatable coupling, the one end of lever with the output shaft of first drive structure, the other end set up the balancing weight, the one end of third briquetting with the balancing weight is connected.

According to some embodiments of the utility model, the lower part of third briquetting with the junction of balancing weight is provided with the slotted hole, the third briquetting with the balancing weight passes through the mounting the slotted hole is connected fixedly.

According to some embodiments of the utility model, the transfer line still is connected with fourth drive arrangement, the side of transfer line is provided with gear portion, fourth drive arrangement includes second drive structure and rack, the rack with the gear portion cooperation is connected, the one end of rack with the output shaft of second drive structure, the rotatable setting of fixed block.

According to some embodiments of the present invention, the driving rod further comprises an angle limiting structure for limiting the rotation angle of the driving rod.

According to some embodiments of the utility model, the transfer line is kept away from the one end of first briquetting is provided with angle locating piece and through-hole, the angle locating piece passes the through-hole, angle limit structure includes two mutually perpendicular's gag lever post, the angle locating piece is followed the transfer line rotate the back with the gag lever post butt.

According to some embodiments of the utility model, the first piece that sticiss sets up to the U-shaped, the part of fixed block extends to the U-shaped inslot of first piece that sticiss.

According to the utility model discloses a some embodiments still include down the hopper, down the hopper setting is in the below of standing groove.

According to some embodiments of the invention, the first drive structure is a cylinder.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a workpiece clamping device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a workpiece clamping device according to an embodiment of the present invention at a second angle;

fig. 3 is a schematic view of a third angle of the workpiece clamping device according to the embodiment of the present invention;

fig. 4 is a schematic view of a fourth angle of the workpiece clamping device according to the embodiment of the present invention;

fig. 5 is a schematic view of a workpiece holding device according to another embodiment of the present invention.

Reference numerals:

the device comprises a fixed block 100, a fixed end 110, a transmission rod 200, a gear part 210, an angle positioning block 220, a first driving device 300, a sliding table 310, a sliding rail 320, a first pressing block 400, a second pressing block 500, a first pressing block 510, a second pressing block 520, a second driving device 530, a third pressing block 600, a long through hole 610, a third driving device 700, a first driving structure 710, a lever 720, a fixed seat 730, a balancing weight 740, a fourth driving device 800, a second driving structure 810, a rack 820, an angle limiting structure 900, a limiting rod 910, a discharging hopper 1000, a workpiece 2000

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 2, 3 and 4, an embodiment of the present invention provides a workpiece 2000 clamping device, including a fixed block 100, forming two end faces perpendicular to each other, a transmission rod 200 capable of moving left and right, one end of which is connected to a first driving device 300, and the other end of which is provided with a first pressing block 400, wherein one end of the first pressing block 400 away from the transmission rod 200 is opposite to one end of the fixed block 100; a second pressing block 500 capable of moving forward and backward, one end of which is connected to the second driving device 530 and the other end of which is disposed opposite to one side of the fixing block 100; the third pressing block 600 capable of moving up and down is disposed below the fixing block 100, one end of the third pressing block is connected to the third driving device 700, and the other end of the third pressing block encloses a placing groove with the two end surfaces of the fixing block 100, the first pressing block 400 and the second pressing block 500. In some embodiments, the first driving device 300 includes an air cylinder, a sliding table 310 and a sliding rail 320, the sliding table 310 is connected to the transmission rod 200 and is disposed on the sliding rail 320, and an output shaft of the air cylinder is connected to the sliding table 310, so as to push the transmission rod 200 to move left and right.

Wherein, the third pressing block 600 may be a limiting ejector pin device. The center of the feed opening of the blanking groove is positioned at the center of the transmission rod, and when the transmission rod 200 rotates, the cylindrical surface is always horizontally opposite to the feed opening, so that the discharging is limited; the feeding groove is rigidly fixed on the large base, when the clamping device clamps, the whole workpiece clamping device returns to the position below the feeding groove under the thrust of the air cylinder to stop, the feeding opening is limited by the tangent plane of the transmission rod 200, and workpieces fall into the placing groove under the action of gravity.

According to the utility model discloses 2000 clamping device of work piece has following beneficial effect at least: before the placing groove is placed into the workpiece 2000, the first pressing block 400, the second pressing block 500 and the third pressing block 600 are far away from the fixing part, that is, the placing groove is large in size. The open clamp space is slightly greater than the maximum overall dimension of the workpiece, so that the blanking is prevented from turning on one side, and meanwhile, the blanking can smoothly fall into the placing groove. This arrangement allows the workpiece 2000 to be easily placed in the placement groove. After the workpiece 2000 is loaded into the placement slot, the first and second clamping blocks 400 and 500 tightly fix the workpiece 2000 to the fixing block 100 under the action of the first, second and third driving devices 300, 530 and 700. Then, the third pressing block 600 is far away from the workpiece 2000, wherein the ejector pin is far away from the placing groove for a certain distance to avoid the space required by the rotation of the transmission rod 200; the tail end of the connecting rod of the third driving device adjusts the depth of the ejector pin of the third pressing block 600 jacked into the placing groove by using a bolt and a nut, the adjustable range is 0-30mm, and hard materials are arranged below the adjusting bolt to increase the wear resistance. The lower part of the workpiece 2000 is suspended, and the workpiece 2000 can be sent to the processing module for processing. Because the first pressing block 400, the second pressing block 500 and the third pressing block 600 are respectively matched with the first driving device 300, the second driving device 530 and the third driving device 700 for use, the workpiece 2000 can be automatically clamped, the efficiency of clamping the workpiece 2000 is improved, and the overall processing efficiency of the workpiece 2000 is also improved.

In some embodiments of the present invention, one side of the fixed block 100 away from the first pressing block 400 is provided with the fixed end 110, the second pressing block 500 includes two mutually perpendicular first pressing parts 510 and second pressing parts 520, one end face of the first pressing part 510 is disposed opposite to the fixed block 100, one side face of the second pressing part 520 is connected to the output shaft of the second driving device 530, and the other side face of the second pressing part 520 in the opposite direction is elastically connected to the fixed end 110. It is understood that the fixing block 100 and the fixing end 110 may be integrally or separately disposed, and the elastic connection may be a connection through a spring, a connection through a spring plate, or an elastic structure having similar performance to a spring. When in use, the second driving device 530 may be an air cylinder, and before the workpiece 2000 is installed, an output shaft of the air cylinder extends out to enable the second pressing portion 520 to compress the spring, so that the first pressing portion 510 tilts away from the fixed block 100, thereby increasing the space of the placement groove to be larger than the size of the workpiece 2000 to be installed, where the size of the workpiece 2000 may be the length of the workpiece 2000 or the width of the workpiece 2000. After the workpiece 2000 is placed, the cylinder controls the retraction of the output shaft, so that the second pressing part 520 is lifted up by the elastic force of the spring, and since the second pressing part 520 is perpendicular to the first pressing part 510, the first pressing part 510 applies a pressing force to the workpiece 2000 by the second pressing part 520.

The other side face of the second pressing part 520 in the opposite direction is elastically connected with the fixed end 110 and is in free contact connection, the second driving device 530 is used for outputting power of an air cylinder, the second pressing block 500 is connected with the fixed block 100 through a rotating pin, a second pressing block 500 is loaded into one end of the rotating pin, a normally closed mechanism is obtained, when the mechanism is opened, the air cylinder of the second driving device 530 is ejected out, the second pressing block 500 is opened, when a workpiece falls into the placing groove, the air cylinder resets, the second pressing block 500 keeps pressing the workpiece under the reaction force of the pressure spring and is not prone to sliding, the air cylinder of the first driving device 300 is ejected out, the workpiece can slightly slide in the placing groove, the workpiece is pressed by the flexible force of the pressure spring, and the first driving device 300 drives the first pressing block 400 to push the workpiece and is not.

In some embodiments of the present invention, the third driving device 700 includes a first driving structure 710, a lever 720 and a fixing base 730, the fixing base 730 is disposed in the middle of the lever 720 and is rotatably connected to the lever 720, one end of the lever 720 is connected to the output shaft of the first driving structure 710, the other end is provided with a weight block 740, and one end of the third pressing block 600 is connected to the weight block 740. The joint of the lower part of the third pressing block 600 and the balancing weight 740 is provided with a long through hole 610, and the third pressing block 600 and the balancing weight 740 pass through the long through hole 610 through a fixing member to be connected and fixed. The transmission rod 200 is further connected with a fourth driving device 800, a gear portion 210 is disposed on a side surface of the transmission rod 200, the fourth driving device 800 includes a second driving structure 810 and a rack 820, the rack 820 and the gear portion 210 are connected in a matching manner, one end of the rack 820 is connected with an output shaft of the second driving structure 810, and the fixing block 100 is rotatably disposed.

The driving structure may be a cylinder, and the cylinder may be disposed above one end of the lever 720 or below one end of the lever 720. Before work piece 2000 is put into to the standing groove, if the cylinder sets up the top at the one end of lever 720, then the output shaft of cylinder stretches out, supports lever 720's one end, makes lever 720 use fixing base 730 as the center of rotation, down rotates to up rotate lever 720's the other end, drive balancing weight 740, and the third briquetting 600 of being connected with balancing weight 740 up moves, make third briquetting 600 and two terminal surfaces of fixed block 100, first briquetting 400 and second briquetting 500 enclose into the standing groove. After the workpiece 2000 is clamped, the cylinder controls the output rod to contract, and the counterweight block 740 and the third pressing block 600 rotate downwards under the action of the gravity of the counterweight block 740, so that the lower part of the workpiece 2000 is suspended, and the processing operations such as drilling are facilitated. The third pressing block 600 and the balancing weight 740 pass through the long through hole 610 through the fixing piece to be connected and fixed, the fixing piece can be a fixing part of a bolt or a screw and is connected through the long through hole 610, and when the relative position of the third pressing block 600 and the balancing weight 740 needs to be moved under the condition that only one fixed screw hole is arranged, the third pressing block 600 and the balancing weight 740 can be moved through the long through hole 610 without being re-perforated.

Referring to fig. 5, in some embodiments of the present invention, the first pressing block 400 is provided in a U-shape, and a portion of the fixing block 100 extends into the U-shaped groove of the first pressing block 400. The transmission rod 200 is further connected with a fourth driving device 800, a gear portion 210 is disposed on a side surface of the transmission rod 200, the fourth driving device 800 includes a second driving structure 810 and a rack 820, the rack 820 and the gear portion 210 are connected in a matching manner, one end of the rack 820 is connected with an output shaft of the second driving structure 810, and the fixing block 100 is rotatably disposed. The drive structure may be a pneumatic cylinder. Through the cooperation of the gear portion 210 and the rack 820, the transmission rod 200 may be rotated, and the first presser block 400 is provided in a U-shape, and a portion of the fixing block 100 extends into the U-shaped groove of the first presser block 400, so that the placing groove may be rotated. When one surface of the workpiece 2000 is machined, the other surface can be rotated to be machined through the rotation of the transmission rod 200, and the workpiece 2000 does not need to be dismounted and then reinstalled, so that the machining efficiency of the workpiece 2000 is improved.

In some embodiments of the present invention, the side of the transmission rod 200 away from the end of the first pressing block 400 is provided with an angle limiting structure 900. An angle positioning block 220 and a through hole are arranged at one end, away from the first pressing block 400, of the transmission rod 200, the angle positioning block 220 penetrates through the through hole, the angle limiting structure 900 comprises two limiting rods 910 which are perpendicular to each other, and the angle positioning block 220 abuts against the limiting rods 910 after rotating along with the transmission rod 200. Through setting up angle limit structure 900, when transfer line 200 rotated to the removal angle, for example 180 degrees, angle locating piece 220 followed transfer line 200 and rotated the back and the gag lever post 910 butt to restriction transfer line 200 continues to rotate, conveniently processes at the preset position of work piece 2000. It is understood that the angle limiting structure 900 can be realized by other specific structures, such as a gear-shaped structure arranged on the transmission rod 200, a rack-shaped structure arranged on the side surface of the gear-shaped structure, and a gear-shaped structure arranged with a tooth surface capable of rotating only 180 degrees, so as to realize the angle limiting function of the transmission rod 200.

The fourth driving device 800 outputs power for the air cylinder, the power of the air cylinder can be limited at any position and can also be prevented from loosening by matching the gear rack 820 and amplifying a rotating force arm, and the transmission rod 200 converts linear displacement into rotary displacement under the matching of the gear rack 820 mechanism; the rear end of the transmission rod 200 is provided with a spacing adjusting bolt and a stop strip, the adjustable range is 0-360 degrees, and the transmission rod can be matched and used at will.

A workpiece 2000 holding apparatus according to an embodiment of the present invention will be described in detail with a specific embodiment with reference to fig. 1 to 5. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

A workpiece 2000 clamping device comprises a fixed block 100, a transmission rod 200 which forms two end faces which are perpendicular to each other and can move left and right, a first pressing block 400 which is arranged at one end of the transmission rod 400 and is connected with a first driving device 300 and at the other end of the transmission rod 200, a second pressing block 500 which can move back and forth and is arranged at one end of the first pressing block 400 and opposite to one end of the fixed block 100, a second driving device 530 which is connected with one end of the second pressing block and at the other end of the second pressing block and opposite to one side face of the; the third pressing block 600 capable of moving up and down is disposed below the fixing block 100, one end of the third pressing block is connected to the third driving device 700, and the other end of the third pressing block encloses a placing groove with the two end surfaces of the fixing block 100, the first pressing block 400 and the second pressing block 500. One side of the fixed block 100, which is far away from the first pressing block 400, is provided with a fixed end 110, the second pressing block 500 comprises a first pressing part 510 and a second pressing part 520 which are perpendicular to each other, one end surface of the first pressing part 510 is arranged opposite to the fixed block 100, one side surface of the second pressing part 520 is connected with an output shaft of the second driving device 530, and the other side surface of the second pressing part 520 in the opposite direction is elastically connected with the fixed end 110. The third driving device 700 includes a first driving structure 710, a lever 720 and a fixing base 730, the fixing base 730 is disposed in the middle of the lever 720 and rotatably connected to the lever 720, one end of the lever 720 is connected to the output shaft of the first driving structure 710, the other end is provided with a weight block 740, and one end of the third pressing block 600 is connected to the weight block 740. The joint of the lower part of the third pressing block 600 and the balancing weight 740 is provided with a long through hole 610, and the third pressing block 600 and the balancing weight 740 pass through the long through hole 610 through a fixing member to be connected and fixed. The transmission rod 200 is further connected with a fourth driving device 800, a gear portion 210 is disposed on a side surface of the transmission rod 200, the fourth driving device 800 includes a second driving structure 810 and a rack 820, the rack 820 and the gear portion 210 are connected in a matching manner, one end of the rack 820 is connected with an output shaft of the second driving structure 810, and the fixing block 100 is rotatably disposed. The side of the transmission rod 200 away from one end of the first presser block 400 is provided with an angle limiting structure 900. An angle positioning block 220 and a through hole are arranged at one end, away from the first pressing block 400, of the transmission rod 200, the angle positioning block 220 penetrates through the through hole, the angle limiting structure 900 comprises two limiting rods 910 which are perpendicular to each other, and the angle positioning block 220 abuts against the limiting rods 910 after rotating along with the transmission rod 200. The first pressing block 400 is provided in a U-shape, and a portion of the fixing block 100 extends into the U-shaped groove of the first pressing block 400. The material discharging device further comprises a material discharging hopper 1000, and the material discharging hopper 1000 is arranged below the placing groove. The driving structure is a cylinder.

Before the workpiece 2000 is placed into the placing groove, the first pressing block 400, the second pressing block 500 and the third pressing block 600 are far away from the fixing part, that is, the placing groove is large in size, so that the workpiece 2000 can be easily placed in the placing groove. After the workpiece 2000 is sent into the placing groove, under the action of the first driving device 300, the second driving device 530 and the third driving device 700, the first pressing block 400 and the second pressing block 500 tightly fix the workpiece 2000 on the fixing block 100, and then the third pressing block 600 is far away from the workpiece 2000, so that the lower part of the workpiece 2000 is suspended, and at this time, the workpiece 2000 can be sent to the processing module for processing. Because first briquetting 400, second briquetting 500, third briquetting 600 use with first drive arrangement 300, second drive arrangement 530, the cooperation of third drive arrangement 700 respectively for can automatic centre gripping work piece 2000, promote centre gripping work piece 2000's efficiency, thereby also promoted work piece 2000's whole machining efficiency, and can quick replacement direction of processing, thereby improve production efficiency fast.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A workpiece holding device, comprising:

the fixing block is used for forming two end faces which are vertical to each other;

one end of the transmission rod capable of moving left and right is connected with the first driving device, the other end of the transmission rod is provided with a first pressing block, and one end, far away from the transmission rod, of the first pressing block is arranged opposite to one end of the fixing block;

one end of the second pressing block capable of moving back and forth is connected with the second driving device, and the other end of the second pressing block is arranged opposite to one side face of the fixing block;

and the third pressing block capable of moving up and down is arranged below the fixing block, one end of the third pressing block is connected with the third driving device, and the other end of the third pressing block, the two end faces of the fixing block, the first pressing block and the second pressing block form a placing groove in a surrounding mode.

2. The workpiece holding apparatus according to claim 1, wherein: one side of the fixed block, which is far away from the first pressing block, is provided with a fixed end, the second pressing block comprises a first pressing part and a second pressing part which are perpendicular to each other, one end face of the first pressing part is opposite to the fixed block, one side face of the second pressing part is connected with an output shaft of the second driving device, and the other side face of the second pressing part, which is opposite to the second pressing part, is elastically connected with the fixed end.

3. The workpiece holding apparatus according to claim 1, wherein: the third driving device comprises a first driving structure, a lever and a fixed seat, the fixed seat is arranged below the middle part of the lever and is rotatably connected with the lever, one end of the lever is connected with an output shaft of the first driving structure, the other end of the lever is provided with a balancing weight, and one end of a third pressing block is connected with the balancing weight.

4. The workpiece holding apparatus according to claim 3, wherein: and a long through hole is formed in the joint of the lower part of the third pressing block and the balancing weight, and the third pressing block and the balancing weight penetrate through the long through hole through a fixing part to be fixedly connected.

5. The workpiece holding apparatus according to any one of claims 1 to 4, wherein: the first pressing block is U-shaped, and part of the fixing block extends into the U-shaped groove of the first pressing block.

6. The workpiece holding apparatus according to claim 5, wherein: the transmission rod is further connected with a fourth driving device, a gear portion is arranged on the side face of the transmission rod, the fourth driving device comprises a second driving structure and a rack, the rack is connected with the gear portion in a matched mode, one end of the rack is connected with an output shaft of the second driving structure, and the fixing block is arranged in a rotatable mode.

7. The workpiece holding apparatus according to claim 6, wherein: the angle limiting structure is used for limiting the rotation angle of the transmission rod.

8. The workpiece holding apparatus of claim 7, wherein: the angle limiting structure comprises two limiting rods which are perpendicular to each other, and the angle positioning block abuts against the limiting rods after the transmission rod rotates.

9. The workpiece holding apparatus according to any one of claims 1 to 4, wherein: still include down the hopper, it sets up to descend the hopper the below of standing groove.

10. The workpiece holding apparatus according to claim 3 or 4, wherein: the first driving structure is a cylinder.

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