CN211218863U

CN211218863U - Fixture for machining T-shaped milling grooves of thin-wall plates

Info

Publication number: CN211218863U
Application number: CN201922233930.2U
Authority: CN
Inventors: 胡宏亮; 罗宏松; 王耀武; 黑玉龙; 陈瑾; 付丽秋; 韩微; 马春超; 殷嘉源; 黄颖
Original assignee: Qiqihar North Machinery Corp ltd
Current assignee: Qiqihar North Machinery Corp ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-08-11
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a clamp for processing T-shaped milling grooves of thin-wall plates, belonging to the technical field of mechanical processing clamps; the fixture comprises a fixture body, wherein three supports are respectively arranged at the upper end and the lower end of the surface of the fixture body, a first double-head bolt and a second double-head bolt are sequentially arranged below each upper end support and above each lower end support, the second double-head bolt is connected with a straight pressing plate through a hexagonal nut with a shoulder, a supporting plate is arranged between every two supports which correspond up and down, the height of the supporting plate is lower than that of the supports, a baffle is arranged at the upper end between every two adjacent supporting plates, the rear side face of the baffle is parallel and level to the upper side face of the supporting plate, the height of the transverse plate is consistent with that of the supporting plate, the height of the upright post is consistent with that of the support, a first threaded hole is formed in the middle between every two adjacent supporting plates, the first double-head bolt is connected with a flat pressing plate through the hexagonal nut.

Description

Fixture for machining T-shaped milling grooves of thin-wall plates

Technical Field

The utility model relates to a processing thin wall board class T type anchor clamps for milling flutes belongs to machining anchor clamps technical field.

Background

The thin-wall plate T-shaped groove milling processing has the advantages that the wall is thin, the required precision of the T-shaped groove is high, the requirement on form and position tolerance is strict, the T-shaped groove is arranged on two side faces of a workpiece, the workpiece is stressed and deformed, in addition, a threaded hole needs to be repositioned, the original thin-wall plate T-shaped groove processing and the original threaded hole processing need to be aligned and clamped twice according to marking lines, errors are caused by the two-time alignment, the processing qualified rate of the T-shaped groove is only 20%, the rest 40% are scrapped, 40% is treated and used, the T-shaped groove processing qualification rate is low, the processing time is long, the production efficiency is low, the product quality is difficult.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies existing in the prior art, the utility model provides a processing thin wall board class T type anchor clamps for milling flutes treats through this anchor clamps that the processing work piece carries out T type groove processing, can one shot forming, avoids marking off the deviation that probably takes place after aligning again many times, has improved the product percent of pass.

The utility model provides a technical scheme that its technical problem adopted is: a clamp for processing a T-shaped milling groove of a thin-wall plate type comprises a clamp body, a first double-headed bolt, a second double-headed bolt, a hexagonal nut with a shoulder, a straight pressing plate, a flat pressing plate and a positioning counter cutter pin; the bottom of the clamp body is a bottom plate, the upper end and the lower end of the surface of the bottom plate are respectively provided with three evenly distributed supports, each support is a square column, a third threaded hole and a second threaded hole are sequentially formed below each upper support, a third threaded hole and a second threaded hole are sequentially formed above each lower support, a support plate is arranged between every two supports which correspond up and down, each support plate is a long strip-shaped column, the height of each support plate is lower than that of each support, a baffle is arranged at the upper end between every two adjacent support plates, the baffle is L-shaped and can be seen to be composed of a transverse plate and an upright post, the transverse plate is arranged below the upright post, the rear side surface of the upright post is flush with the upper side surface of each support plate, the height of the transverse plate is consistent with that of each support plate, the height of each upright post is consistent with that of each support, a, the shaft hole is a threaded hole.

The clamp comprises a clamp body and is characterized in that a first stud is arranged in a third threaded hole of the clamp body, the first stud is connected with a flat pressing plate through a hexagonal nut with a shoulder, a slotted hole is formed in the center of the flat pressing plate, a second stud is arranged in a first threaded hole of the clamp body, the second stud is connected with a straight pressing plate through the hexagonal nut with the shoulder, a round hole is formed in the center of the straight pressing plate, a positioning counter cutter pin is arranged in the shaft hole, and a thread is arranged at one end of the positioning counter cutter.

Treat that the processing work piece is for being equipped with the square plate in U type groove at length direction, two rectangular holes of U type tank bottom surface evenly distributed, in advance at the both sides medial surface fluting in U type groove, treat that processing work piece upper end is equipped with three lug, treat that processing work piece lower extreme also is equipped with three lug, set up the screw hole on every lug in advance.

Placing a workpiece to be processed on a supporting plate of the clamp body, wherein the left end of the workpiece to be processed is aligned with the tool setting positioning pin, and the upper end of the workpiece to be processed is aligned with the stop block; tightening the hexagonal nut with the shoulder, pressing the lifting lug of the workpiece to be processed through the flat pressing plate and pressing the edge of the rectangular hole of the workpiece to be processed through the straight pressing plate so as to further press the workpiece to be processed, carrying out tool setting by using a T-shaped milling cutter according to the tool setting positioning pin, and processing a T-shaped groove; the hexagonal nut with the shoulder is loosened, and the flat pressing plate rotates ninety degrees, so that the threaded hole is not prevented from being machined, and the threaded hole in the lifting lug is machined.

The utility model has the advantages that: the original thin-wall plate type T-shaped groove machining and threaded hole machining need to be performed twice according to scribing alignment clamping, the T-shaped groove machining yield is only 20%, the other 40% are scrapped, and 40% are processed and used. The utility model discloses can guarantee to fix a position the work piece accurate, need not the alignment, work piece atress direction and size are reasonable, and T type groove is adding the deformation little man-hour, and thread machining does not need alignment again, only need change the clamp plate can, reduced the occupancy of equipment, guarantee product quality, shortened processing cycle, reduced the processing cost. Through the utility model discloses an use, only need once place the work piece on anchor clamps, the clamping can, the processing qualification rate is 90%, and remaining 10% is more or less than just, and through handling the use, the quality obtains very big improvement, adopts the utility model discloses with the preceding, back result contrast of anchor clamps, the work piece qualification rate is improved to 95% by 20%, adopts this anchor clamps to process T type groove and screw hole processing man-hour and reduces to 20 hours from original 30 hours, and machining efficiency has improved 1.5 times approximately. The utility model discloses it is little, with low costs, the maneuverability is strong to make the degree of difficulty, and production efficiency is high, is applicable to mass production's requirement.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the clamp body.

Fig. 3 is a schematic view of the installation and application of the present invention.

Fig. 4 is a schematic structural diagram of a workpiece to be processed.

Reference numbers in the figures:

1. the fixture comprises a fixture body, 101, a support, 102, a baffle plate, 103, a support plate, 104, a pin hole, 105, a first bolt hole, 106, a second bolt hole, 107, a bottom plate, 2, a first stud, 3, a second stud, 4, a hexagon nut with a shoulder, 5, a straight pressing plate, 6, a flat pressing plate, 7, a tool setting positioning pin, 8 and a workpiece to be processed.

Detailed Description

As shown in fig. 1-3, a clamp for processing a thin-walled plate type T-shaped milling groove comprises a clamp body 1, a first stud 2, a second stud 3, a hexagonal nut with shoulder 4, a straight pressing plate 5, a flat pressing plate 6 and a positioning counter-cutter pin 7; the bottom of the clamp body 1 is a bottom plate 107, the upper end and the lower end of the surface of the bottom plate 107 are respectively provided with three evenly distributed support seats 101, each support seat 101 is a square column, a third threaded hole 108 and a second threaded hole 106 are sequentially arranged below each upper support seat 101, a third threaded hole 108 and a second threaded hole 106 are sequentially arranged above each lower support seat 101, a support plate 103 is arranged between every two vertically corresponding support seats 101, each support plate 103 is a long strip-shaped column, the height of each support plate 103 is lower than that of each support seat 101, a baffle plate 102 is arranged at the upper end between every two adjacent support plates 103, the baffle plate 102 is L-shaped and can be considered to be composed of a transverse plate and an upright column, the transverse plate is arranged at the lower part, the upright column is arranged at the upper part, the rear side surface of the upright column is flush with the upper side surface of each support plate 103, the height of the transverse plate is consistent with, the middle position of the left end of the surface of the first bottom plate 107 is provided with a shaft hole 104, and the shaft hole 104 is a threaded hole.

Be equipped with first stud 2 in the 1 third screw hole 108 of anchor clamps body, first stud 2 is connected with the concora crush board 6 through taking shoulder hexagon nut 4, the slotted hole has been seted up at concora crush board 6 center, be equipped with second stud 3 in the 1 first screw hole 105 of anchor clamps body, second stud 3 is connected with straight clamp plate 5 through taking shoulder hexagon nut 4, straight clamp plate 5 center has been seted up the round hole, be equipped with the location in the shaft hole 104 and be equipped with to the cutter pin 7, the location is equipped with to cutter pin 7 one end for the screw thread.

As shown in fig. 4, the workpiece 8 to be processed is a square plate with a U-shaped groove in the length direction, two rectangular holes are uniformly distributed on the bottom surface of the U-shaped groove, grooves are formed in the inner side surfaces of the two sides of the U-shaped groove in advance, three lifting lugs are arranged at the upper end of the workpiece 8 to be processed, three lifting lugs are arranged at the lower end of the workpiece 8 to be processed, and a threaded hole is formed in each lifting lug in advance.

Placing a workpiece 8 to be processed on a supporting plate 103 of the clamp body 1, wherein the left end of the workpiece 8 to be processed is aligned with the tool setting positioning pin 7, and the upper end of the workpiece 8 to be processed is aligned with the stop block 102; tightening the hexagonal nut with the shoulder 4, pressing the lifting lug of the workpiece 8 to be processed and the edge of the rectangular hole of the workpiece 8 to be processed through the flat pressing plate 6 and the straight pressing plate 5, further pressing the workpiece 8 to be processed, carrying out tool setting by using a T-shaped milling cutter according to the tool setting positioning pin 7, and processing a T-shaped groove; the hexagonal nut 4 with the shoulder is loosened, and the flat pressing plate 6 rotates ninety degrees, so that the threaded hole is not prevented from being machined, and the threaded hole in the lifting lug is machined.

Claims

1. The utility model provides a processing thin wall board type T type anchor clamps for milling flutes which characterized by: the clamp comprises a clamp body (1), a first stud (2), a second stud (3), a hexagonal nut with a shoulder (4), a straight pressing plate (5), a flat pressing plate (6) and a positioning counter pin (7); the bottom of the clamp body (1) is a bottom plate (107), the upper end and the lower end of the surface of the bottom plate (107) are respectively provided with three evenly distributed support seats (101), the support seats (101) are square columns, a third threaded hole (108) and a second threaded hole (106) are sequentially formed below each upper support seat (101), a third threaded hole (108) and a second threaded hole (106) are sequentially formed above each lower support seat (101), a support plate (103) is arranged between every two vertically corresponding support seats (101), the support plate (103) is a long-strip-shaped column, the height of the support plate (103) is lower than that of each support seat (101), a baffle plate (102) is arranged at the upper end between every two adjacent support plates (103), the baffle plate (102) is L-shaped and can be considered to be composed of a transverse plate and an upright column, the transverse plate is arranged below the upright column, the rear side face of the upright column is flush with the upper side face of each support plate, the height of the upright column is consistent with that of the support (101), a first threaded hole (105) is formed in the middle between every two adjacent support plates (103), a shaft hole (104) is formed in the middle of the left end of the surface of the first base plate (107), and the shaft hole (104) is a threaded hole.

2. The clamp for machining the T-shaped milling groove of the thin-wall plate as claimed in claim 1, wherein: be equipped with first stud (2) in third screw hole (108) of anchor clamps body (1), first stud (2) are connected with flat clamp plate (6) through taking shoulder hexagon nut (4), the slotted hole has been seted up at flat clamp plate (6) center, be equipped with second stud (3) in anchor clamps body (1) first screw hole (105), second stud (3) are connected with straight clamp plate (5) through taking shoulder hexagon nut (4), the round hole has been seted up at straight clamp plate (5) center, be equipped with location in shaft hole (104) and to cutter pin (7), the location is equipped with for the screw thread to cutter pin (7) one end.