CN211072673U

CN211072673U - Turning and milling clamp I for gear box of air compressor

Info

Publication number: CN211072673U
Application number: CN201921709415.0U
Authority: CN
Inventors: 黄涛
Original assignee: Liuzhou Yingli Machinery Casting Co ltd
Current assignee: Liuzhou Yingli Machinery Casting Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-07-24
Anticipated expiration: 2029-10-12

Abstract

The turning and milling clamp I for the gear box of the air compressor comprises a bottom plate and two side plates, a locating plate and set up the clamping device who is used for pressing from both sides tight air compressor gear box on the locating plate, the bottom plate upper surface is equipped with ejector pin device, two curb plates are connected perpendicularly in the relative both sides of bottom plate upper surface, be equipped with the logical groove that corresponds each other with the pending installation surface position of air compressor gear box casing both sides on two curb plates respectively, the perpendicular one side edge of connecting at the bottom plate upper surface of locating plate, the locating plate both ends still are connected perpendicularly with two curb plates respectively, the locating plate middle part is equipped with the circular big through-hole that corresponds each other with the inboard round hole position of butt joint face under the air compressor gear box, the peripheral ring shape step face that is equipped with butt joint face under the locating air compressor gear box of circular big through-hole, clamping device is. Adopt the utility model discloses can improve production efficiency and guarantee product machining precision.

Description

Turning and milling clamp I for gear box of air compressor

Technical Field

The utility model relates to a machining technical field, in particular to air compressor gear box turnning and milling anchor clamps.

Background

The air compressor gear box structure is shown in fig. 1 to 3 and comprises a shell 1, wherein a lower annular butt joint surface 4 is arranged at the bottom end of the shell 1, two upper butt joint surfaces 2 which are arranged side by side and located on the same plane are arranged at the upper end of the shell 1, and mounting surfaces 5 are further arranged on two sides of the surface of the shell 1 in a protruding mode. The air compressor gear box is obtained by firstly obtaining a casting through casting and then machining the casting. Wherein the lower butt joint face 4 and the connecting hole thereon, the inner side round hole 6 of the lower butt joint face, two coaxial round holes 7 in the inner side round hole of the lower butt joint face, the upper butt joint face 2 and the connecting hole thereon, and the mounting surface 5 and the connecting hole thereon all need to be machined. The machining method commonly used in the industry at present is to clamp an air compressor gear box workpiece by using a set of clamp I, and to machine an upper butt joint face and a connecting hole on the upper butt joint face. And then clamping the air compressor gear box workpiece by using a set of clamp II, and processing the lower butt joint surface and a connecting hole on the lower butt joint surface, a round hole on the inner side of the lower butt joint surface and two coaxial round holes in the round hole on the inner side of the lower butt joint surface. And then, clamping the workpiece of the gearbox of the air compressor by using a set of clamp III, and processing the mounting surfaces on two sides of the outer surface of the shell and connecting holes on the mounting surfaces. This prior art needs three sets of anchor clamps cubic clamping to just can accomplish the processing to the work piece, and work efficiency is low, and the work piece can have some accumulative machining errors through a lot of clamping simultaneously, also can reduce the machining precision of work piece.

Disclosure of Invention

The utility model aims at the defect that above-mentioned prior art exists, provide one kind and can effectively improve production efficiency and guarantee air compressor gear box turn-milling anchor clamps I of product machining precision.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a turning and milling clamp I for an air compressor gear box comprises a bottom plate, two side plates, a positioning plate and a clamping device arranged on the positioning plate and used for clamping the air compressor gear box, wherein a connecting through hole connected with a workbench is arranged on the bottom plate, an ejector rod device used for ejecting the outer surface of the air compressor gear box shell is vertically connected to the upper surface of the bottom plate close to the middle position, the two side plates are vertically connected to two opposite sides of the upper surface of the bottom plate, through grooves corresponding to the positions of mounting surfaces to be processed on the two sides of the air compressor gear box shell are respectively arranged on the two side plates, the positioning plate is vertically connected to one side edge of the upper surface of the bottom plate, the two ends of the positioning plate are also vertically connected with the two side plates respectively, a space for accommodating the air compressor gear box is formed by the bottom plate, the side plates and the positioning plate, the locating plate openly is equipped with the ring shape step face of locating air compressor gear box butt joint face down at circular big through-hole peripheral, is equipped with locating hole I that corresponds each other with the connecting hole position on the air compressor gear box butt joint face down on the ring shape step face, and clamping device is the ring shape step face periphery of annular matrix mode setting at the locating plate, and each clamping device includes the installation stand, the clamp plate of suit on the installation stand and connects the lock nut who is used for locking the clamp plate in the installation stand upper end.

The utility model discloses a further technical scheme is: the height of the ejector rod device is adjustable, the ejector rod device comprises a positioning nut welded on the upper surface of the bottom plate and a bolt connected in the positioning nut, and the whole height of the ejector rod device can be adjusted by rotating the bolt.

The utility model discloses a further technical scheme is: the air compressor gear box lower butt joint device is characterized by further comprising an annular positioning ring which is arranged in the annular step surface and matched with the annular step surface, a positioning hole II which corresponds to the positioning hole I in the annular step surface is formed in the annular positioning ring, and the lower butt joint surface of the air compressor gear box is in butt joint with the annular positioning ring in the annular step surface.

The utility model discloses a further technical scheme is: the two side plates are respectively in a right-angle trapezoidal shape, the trapezoidal bevel edges of the side plates are connected between two right-angle edges which are not connected with the bottom plate and the positioning plate, the weight-reducing through holes are further formed in one sides of the through grooves of the side plates, and the triangular counterweight plates are connected between the top ends of the two side plates and the top end of the positioning plate respectively.

The utility model discloses air compressor gear box turn-milling anchor clamps I has following beneficial effect: by adopting the turning and milling clamp I, only the lower butt joint face of the air compressor gear box workpiece needs to be roughly machined, the air compressor gear box workpiece can be positioned and clamped in the turning and milling clamp I, the lower butt joint face of the air compressor gear box workpiece is positioned on the annular positioning ring on the annular step face, the boss on the back face of the lower butt joint face of the air compressor gear box workpiece is pressed by the pressing plate of the clamping device, and the bolt of the ejector rod device is adjusted to prop against one side of the shell of the air compressor gear box workpiece, so that the inner side circular hole of the lower butt joint face, two coaxial circular holes in the inner side circular hole of the lower butt joint face, the upper butt joint face and the connecting holes on the upper butt joint face, the mounting surface and the connecting holes on the; all processing can be finished by one-time clamping by adopting one set of clamp, so that the production efficiency is effectively improved, accumulated errors caused by multiple times of clamping can be avoided, and the processing precision of products is effectively ensured.

The turning and milling clamp I for the air compressor gearbox of the present invention will be further described with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural view of an air compressor gearbox;

FIG. 2 is another directional structural schematic of an air compressor gearbox;

FIG. 3 is a schematic view of a further directional structure of the air compressor gearbox;

FIG. 4 is a schematic structural view of the turning and milling clamp I for the air compressor gearbox of the present invention;

FIG. 5 is a schematic structural view of the air compressor gearbox turning and milling fixture I in another direction;

FIG. 6 is a schematic view of another direction structure of the turning and milling clamp I for the air compressor gearbox of the present invention;

FIG. 7 is a partially exploded view of the turning and milling fixture I for the air compressor gearbox of the present invention;

FIG. 8 is a schematic structural diagram of an air compressor gear box clamped in the turning and milling clamp I for the air compressor gear box of the present invention;

FIG. 9 is another directional schematic of FIG. 8;

FIG. 10 is a schematic view of the further directional structure of FIG. 8;

the reference numbers illustrate: 1-shell, 2-upper butt joint face, 3-boss on back of lower butt joint face, 4-lower butt joint face, 5-installation face, 6-round hole on inner side of lower butt joint face, 7-two coaxial round holes in round hole on inner side of lower butt joint face, 8-bottom plate, 9-connecting through hole, 10-weight-reducing through hole, 11-side plate, 12-through groove, 13-positioning plate, 14-round large through hole, 15-ejector rod device, 16-annular positioning ring, 17-counterweight plate, 18-clamping device, 19-annular step face, 20-bolt, 21-positioning nut, 22-pressing plate, 23-installation upright post and 24-locking nut.

Detailed Description

As shown in fig. 4 to 10, the utility model discloses air compressor gear box turn-milling fixture I, including a bottom plate 8, two blocks of curb plates 11, a locating plate 13 and set up the clamping device 18 that is used for pressing from both sides tight air compressor gear box on locating plate 13.

The bottom plate 8 is provided with a connecting through hole 9 connected with the workbench, and the upper surface of the bottom plate 8 is vertically connected with a mandril device 15 which is used for propping the outer surface of the gearbox shell 1 of the air compressor near the middle part. The height of the ejector rod device 15 can be adjusted, the ejector rod device 15 comprises a positioning nut 21 welded on the upper surface of the bottom plate 8 and a bolt 20 connected in the positioning nut 21, and the whole height of the ejector rod device 15 can be adjusted by rotating the bolt 20. Adjusting the bolts 20 to the proper positions, the outer surface of the gearbox housing 1 can be propped against by the tail ends of the bolts 20, so that the balance of the gearbox housing 1 is ensured.

Two side plates 11 are vertically connected to two opposite sides of the upper surface of the bottom plate 8, and through grooves 12 corresponding to the positions of the mounting surfaces 5 to be processed on the two sides of the gearbox shell 1 of the air compressor are respectively arranged on the two side plates 11. The positioning plate 13 is vertically connected to one side edge of the upper surface of the bottom plate 8, two ends of the positioning plate 13 are also vertically connected with the two side plates 11 respectively, and the bottom plate 8, the side plates 11 and the positioning plate 13 jointly enclose a space for accommodating an air compressor gear box. Wherein two blocks of curb plates 11 are right trapezoid respectively, and the trapezoidal hypotenuse of curb plate 11 is connected between two right-angle sides that are not connected with bottom plate 8 and locating plate 13, and logical groove 12 one side of curb plate 11 still is equipped with subtracts heavy through-hole 10, is connected with the counterweight 17 of triangle-shaped form respectively between two blocks of curb plate 11 tops and locating plate 13 tops, sets up counterweight 17 on curb plate 11 and locating plate 13 top, can alleviate the holistic vibration volume of course of working air compressor gear box and turnning and milling anchor clamps I.

The middle part of the positioning plate 13 is provided with a large circular through hole 14 corresponding to the position of the circular hole 6 on the inner side of the lower butt joint face of the gear box of the air compressor, the front surface of the positioning plate 13 is provided with a circular step face 19 for positioning the lower butt joint face 4 of the gear box of the air compressor at the periphery of the large circular through hole 14, and the circular step face 19 is provided with a positioning hole I corresponding to the position of a connecting hole on the lower butt joint face 4 of the gear box of the air. The utility model discloses still including setting up the ring shape position circle 16 of mutually supporting with ring shape step face 19 in ring shape step face 19, ring shape position circle 16 is the smooth standard component in surface, be equipped with on the ring shape position circle 16 with the locating hole II that I positions of locating hole on the ring shape step face 19 correspond each other, the ring shape position circle 16 of butt joint face 4 and ring shape step face 19 butt joint each other under the air compressor gear box. The clamping devices 18 are arranged on the periphery of the circular step surface 19 of the positioning plate 13 in an annular matrix manner, and each clamping device 18 comprises a mounting upright 23, a pressing plate 22 sleeved on the mounting upright 23 and a locking nut 24 connected to the upper end of the mounting upright 23 and used for locking the pressing plate 22.

In operation, the base plate 8 is connected to a table (not shown) of a machine tool by means of connecting bolts. The annular positioning ring 16 is positioned on the annular step surface 19 of the positioning plate 13, and the positioning holes I and the positioning holes II are in one-to-one correspondence. And then the lower butt joint surface 4 of the air compressor gearbox workpiece is positioned on an annular positioning ring 16 on an annular step surface 19, and the mounting surfaces 5 on the two sides of the air compressor gearbox shell 1 respectively correspond to the positions of the through grooves 12 of the side plates 11, so that a cutter can conveniently pass through the through grooves 12 to process the mounting surfaces 5 and upper connecting holes thereof. And then adjusting a bolt 20 of the ejector rod device 15 to be abutted against one side of the air compressor gearbox workpiece shell 1, rotating a pressing plate 22 of the clamping device 18 to enable the pressing plate 22 to be pressed on the boss 3 on the back surface of the lower abutting surface, and twisting a locking nut 24 at the upper end of the mounting upright column 23 to enable the pressing plate 22 to be pressed on the boss 3 on the back surface of the lower abutting surface of the air compressor gearbox workpiece. Namely, the inner round hole 6 of the lower butt joint face, the two coaxial round holes 7 in the inner round hole of the lower butt joint face, the upper butt joint face 2 and the connecting hole thereon, and the mounting surface 5 and the connecting hole thereon can be respectively machined.

The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. A turning and milling clamp I for an air compressor gear box is characterized by comprising a bottom plate (8), two side plates (11), a positioning plate (13) and a clamping device (18) arranged on the positioning plate (13) and used for clamping the air compressor gear box, wherein a connecting through hole (9) connected with a workbench is formed in the bottom plate (8), a jacking rod device (15) used for jacking the outer surface of the air compressor gear box shell (1) is vertically connected to the middle position of the upper surface of the bottom plate (8), the two side plates (11) are vertically connected to two opposite sides of the upper surface of the bottom plate (8), through grooves (12) corresponding to the positions of mounting surfaces (5) to be processed on the two sides of the air compressor gear box shell (1) are respectively arranged on the two side plates (11), the positioning plate (13) is vertically connected to one side edge of the upper surface of the bottom plate (8), and two ends of the positioning plate (13) are also vertically connected with, the bottom plate (8), the side plates (11) and the positioning plate (13) jointly enclose a space for containing a gear box of the air compressor, a large circular through hole (14) corresponding to the position of an inner side circular hole (6) of a lower butt joint face of the gear box of the air compressor is arranged in the middle of the positioning plate (13), a circular ring-shaped step face (19) for positioning the lower butt joint face (4) of the gear box of the air compressor is arranged on the periphery of the large circular through hole (14) in the front face of the positioning plate (13), a positioning hole I corresponding to the position of a connecting hole on the lower butt joint face (4) of the gear box of the air compressor is arranged on the circular ring-shaped step face (19) of the positioning plate (13), and the clamping, each clamping device (18) comprises an installation upright post (23), a pressure plate (22) sleeved on the installation upright post (23) and a locking nut (24) connected to the upper end of the installation upright post (23) and used for locking the pressure plate (22).

2. The air compressor gearbox turn-milling fixture I as claimed in claim 1, wherein the ejector rod device (15) is adjustable in height, the ejector rod device (15) comprises a positioning nut (21) welded on the upper surface of the bottom plate (8) and a bolt (20) connected in the positioning nut (21), and the whole height of the ejector rod device (15) can be adjusted by rotating the bolt (20).

3. The turning and milling fixture I for the air compressor gearbox as defined in claim 1, further comprising a circular positioning ring (16) arranged in the circular stepped surface (19) and matched with the circular stepped surface (19), wherein the circular positioning ring (16) is provided with a positioning hole II corresponding to the positioning hole I in the circular stepped surface (19), and the lower butt joint surface (4) of the air compressor gearbox is butted with the circular positioning ring (16) in the circular stepped surface (19).

4. The turning and milling fixture I for the air compressor gearbox as defined in claim 1, wherein the two side plates (11) are respectively in a right trapezoid shape, the trapezoidal bevel edge of the side plate (11) is connected between the two right-angle edges which are not connected with the bottom plate (8) and the positioning plate (13), a weight-reducing through hole (10) is further formed in one side of the through groove (12) of the side plate (11), and a triangular counterweight plate (17) is respectively connected between the top ends of the two side plates (11) and the top end of the positioning plate (13).