CN213135896U

CN213135896U - Clamping device for machining composite angle hole

Info

Publication number: CN213135896U
Application number: CN202021762320.8U
Authority: CN
Inventors: 彭小彦; 彭湘; 段良辉; 刘国栋; 杨芳; 伍浩; 何少华; 凡永磊; 王敏辉
Original assignee: Jiangnan Industries Group Co Ltd
Current assignee: Jiangnan Industries Group Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-07
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a clamping device in compound angle hole of processing, including the anchor clamps body, the locating pin, the screw, the anchor clamps body includes diaphragm and riser, the diaphragm bottom surface is beta with the contained angle of horizontal plane, be equipped with the centre bore in the middle of the riser upper portion, riser upper portion uses the centre bore symmetry to be equipped with two location pinhole, two location pinhole center lines are alpha with the contained angle of horizontal plane, the locating pin turns right from a left side and passes the location pinhole on the riser and insert in the pinhole of part, the screw turns right from a left side and passes the centre bore on the riser in proper order, the through-hole at part center, the screw right-hand member passes through clamp plate and nut and fasten. The utility model utilizes the alpha angle of the bottom surface of the clamp body and the beta angle of the central connecting line of the two positioning pins to offset the alpha and beta space angles of the holes on the part, and ensures that the axis and the end surface of the machine tool spindle are in a vertical state when the part is processed; therefore, the processing of the spatial compound angle hole system can be rapidly and conveniently carried out.

Description

Clamping device for machining composite angle hole

Technical Field

The utility model relates to a clamping device, in particular to clamping device in compound angle hole of processing.

Background

Along with the development of science and technology, the types of mechanical processing products also change rapidly, the complexity degree of the mechanical processing products is higher and higher, the requirement of a hole system with a space compound angle on a part on equipment is high, and common equipment, even a three-axis numerical control milling machine and a four-axis numerical control machine, cannot meet the processing requirement but needs to be processed by a five-axis processing center machine tool. But the five-axis machining center has high equipment cost and high machining cost, and does not meet the requirements of lean production and cost reduction of manufacturing enterprises.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a simple structure, with low costs clamping device in compound angle hole of processing.

The utility model provides a technical scheme of above-mentioned problem is: the utility model provides a clamping device in compound angle hole of processing, includes anchor clamps body, locating pin, screw, clamp plate, nut, the anchor clamps body includes the diaphragm and is located the left riser of diaphragm upper surface, the diaphragm bottom surface is beta with the contained angle of horizontal plane, riser upper portion middle be equipped with the corresponding centre bore of through-hole at part center, riser upper portion is equipped with two location pinhole that correspond with the pinhole of part with the centre bore symmetry, the locating pin turns right from a left side and passes the location pinhole on the riser and insert in the pinhole of part, and two locating pin center lines are alpha with the contained angle of horizontal plane, the screw turns right from a left side and passes the through-hole at centre bore, part center on the riser in proper order, and the screw right-hand member passes through clamp plate and nut and.

According to the clamping device for machining the composite angle hole, the radial included angle and the radial included angle beta of the composite angle hole of the part are the same in value.

According to the clamping device for machining the composite angle hole, the composite angle hole of the part is identical in numerical value with the pin hole arc angle and the included angle alpha of the part closest to the composite angle hole.

According to the clamping device for machining the composite angle hole, the clamp body is formed by welding or integrally machining.

According to the clamping device for machining the composite angle hole, the positioning pin is matched with the positioning pin hole in the clamp body by adopting H7/g 6.

The beneficial effects of the utility model reside in that: the utility model provides a clamping device for processing a spatial composite angle hole system, which utilizes an alpha angle of the bottom surface of a clamp body 3 and a beta angle of a central connecting line of two positioning pins to offset the alpha and beta spatial angles of holes on a part, and ensures that an axis is in a vertical state with the end surface of a machine tool spindle when the part is processed; therefore, the three-axis numerical control milling machine, the four-axis numerical control machine tool and even common equipment can be rapidly and conveniently used for processing the spatial composite angle hole system, the precision and the qualification rate of the three-axis numerical control milling machine are not lower than those of a five-axis processing center, the processing cost is greatly saved while the product quality is ensured, and the idea of lean production of enterprises is met.

Drawings

Fig. 1 is an overall assembly drawing of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a schematic view of a part.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a sectional view a-a in fig. 4.

Fig. 6 is a front view of the clamp body of fig. 1.

Fig. 7 is a left side view of the clamp body of fig. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 3-5, a spatial compound angle hole needs to be processed on the part 6, the angle α is in the vertical direction, and the included angle between the compound angle hole and the radial direction of the part 6 is β; the compound angle hole and the pin hole arc angle of the part 6 closest to the compound angle hole are alpha.

As shown in figures 1 and 2, the clamping device for machining the holes with the composite angles comprises a clamp body 3, positioning pins 1, screws 2, a pressing plate 4 and nuts 5, wherein the clamp body 3 comprises a transverse plate 3-1 and a vertical plate 3-2 positioned on the left side of the upper surface of the transverse plate 3-1, the upper surface of the transverse plate 3-1 is horizontal, the included angle between the bottom surface of the transverse plate 3-1 and the horizontal plane is beta, a central hole 7 corresponding to a through hole 8 in the center of a part 6 is formed in the middle of the upper portion of the vertical plate 3-2, two positioning pin holes 10 corresponding to pin holes 9 of the part 6 are symmetrically formed in the upper portion of the vertical plate 3-2 through the central hole 7, the positioning pins 1 penetrate through the positioning pin holes 10 in the vertical plate 3-2 from left to right and are inserted into the pin holes 9 of the part 6, the included angle between the central connecting line of the two positioning, The part 6 is fastened on the clamp body 3 through a through hole 8 in the center of the part 6 and the right end of the screw 2 through the pressing plate 4 and the nut 5.

The clamp body 3 is formed by welding or integral processing to ensure a beta angle of the bottom surface. The positioning pin 1 is matched with the positioning pin hole 10 on the clamp body 3 by adopting H7/g 6. At the same time, the upper end face 31 of the clamp body 3 ensures that the geometric tolerance requirement of fig. 7 is met.

In operation, the part 6 is placed on the clamp body 3 through the two positioning pins 1, and the part 6 is fixed on the clamp body 3 through the screw 2, the nut 5 and the pressing plate 4.

The bottom surface of the clamping device is directly attached to the equipment workbench and fixed through the fixing piece, and because the equipment workbench is in a horizontal state, the beta angle of the bottom surface of the clamping device and the alpha angle of the connecting line between the two positioning pins 1 counteract the alpha angle and the beta angle in the spatial direction of the processing hole of the part 6, after the part 6 is clamped, the axis of the hole with the composite angle to be processed and the end surface of the machine tool spindle are in a vertical state, the upper end surface 31 of the clamp body 3 and the workbench are in a horizontal state, and the setting of the original point of a processing coordinate system is facilitated.

Claims

1. The utility model provides a clamping device in compound angle hole of processing which characterized in that: including anchor clamps body, locating pin, screw, clamp plate, nut, the anchor clamps body includes the diaphragm and is located the left riser of diaphragm upper surface, the diaphragm bottom surface is beta with the contained angle of horizontal plane, riser upper portion middle be equipped with the through-hole corresponding centre bore at part center, riser upper portion is equipped with two locating pin holes that correspond with the pinhole of part with the centre bore symmetry, the locating pin turns right from a left side and passes the locating pin hole on the riser and insert in the pinhole of part, two locating pin center lines are alpha with the contained angle of horizontal plane, the screw turns right from a left side and passes the through-hole at centre bore, part center on the riser in proper order, and the screw right-hand member passes through clamp plate and nut and fastens the part.

2. The clamping device for machining the composite angle hole according to claim 1, wherein: the radial included angle and the radial included angle beta of the composite angle hole of the part are the same in value.

3. The clamping device for machining the composite angle hole according to claim 1, wherein: the compound angle hole of the part is the same in value with the pin hole arc angle and the included angle alpha of the part closest to the compound angle hole.

4. The clamping device for machining the composite angle hole according to claim 1, wherein: the clamp body is formed by welding or integral processing.

5. The clamping device for machining the composite angle hole according to claim 1, wherein: the positioning pin is matched with a positioning pin hole on the clamp body by adopting H7/g 6.