CN213672015U

CN213672015U - Combined drilling jig for double-sided ectopic holes of front cover of gear pump

Info

Publication number: CN213672015U
Application number: CN202022574620.XU
Authority: CN
Inventors: 杜昂瑾; 潘春霞; 杜广新; 邵淑芬; 万曙东
Original assignee: FUXIN HENGBAIDA MACHINERY CO LTD
Current assignee: FUXIN HENGBAIDA MACHINERY CO LTD
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-07-13
Anticipated expiration: 2030-11-10

Abstract

The utility model belongs to the machinery manufacturing technology equipment, in particular to two-sided heterotopic hole combination jig of gear pump protecgulum. The support columns are fixedly and vertically arranged at four corners of the upper surface of the drill jig base in an interference fit mode respectively, four base drill jig holes are uniformly distributed in the bottom surface of the drill jig base, a positioning pin II is vertically arranged at the middle left side of the upper surface of the drill jig base in a threaded connection mode, a positioning pin I is vertically arranged at the middle right side of the upper surface of the drill jig base in a threaded connection mode, the positioning pin II of the upper cover of the drill jig is sleeved at the upper end of the positioning pin II in a penetrating mode, the positioning pin I of the upper cover of the drill jig is sleeved at the upper end of the positioning pin I and locked and fixed through a flat pad and a fastening nut, and the four base drill jig holes in the drill jig base and. The drill jig has a simple structure, two sets of drill jigs are changed into one set of drill jig, one-time clamping procedures are reduced, time and labor are saved, form and position tolerance between processed holes can be guaranteed, and production efficiency and assembly precision are improved.

Description

Combined drilling jig for double-sided ectopic holes of front cover of gear pump

Technical Field

The utility model belongs to the machinery manufacturing technology equipment, in particular to two-sided heterotopic hole combination jig of gear pump protecgulum.

Background

One end face of a front cover of the gear pump is provided with a pump body connecting hole, the other end face of the front cover of the gear pump is provided with an outer connecting hole, the previous drilling process is implemented by means of two sets of drill jigs in a distributed mode, after the drill jig penetrates through the pump body connecting hole on one end face, the drill jig is replaced for secondary clamping to drill the outer connecting hole on the other end face, the clamping is required twice by using the mode of two sets of drill jigs, time and labor are wasted, the production and processing efficiency is seriously influenced, and the form and position tolerance of a product is.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned technique not enough, provide a simple structure, not only save time but also laborsaving, efficient, can effectively guarantee machining precision's gear pump protecgulum two-sided heterotopic hole combination jig.

The utility model provides a technical scheme that technical problem adopted is: the gear pump front cover double-sided different-position hole combined drill jig comprises a drill jig base, a flat pad and a fastening nut, and is characterized in that four corners on the upper surface of the drill jig base are respectively fixed with a vertical supporting column in an interference fit manner, four base drill jig holes are uniformly distributed on the bottom surface of the drill jig base, a positioning pin II is vertically connected with the left side of the middle of the upper surface of the drill jig base in a threaded manner, a positioning pin I is vertically connected with the right side of the middle of the upper surface of the drill jig base in a threaded manner, the front cover is movably penetrated and installed below the positioning pin I, the lower end surface of the front cover is arranged on the upper end surface of the drill jig base, four front covers to be processed and pump body connecting holes are arranged on the upper end surface of the front cover, four external connecting holes to be processed are arranged on the lower end surface of the front cover, a drill jig upper cover is penetrated and installed above the positioning pin II together, the lower end surface of, The upper cover drill jig holes are sleeved at the upper ends of the positioning pins II, the positioning pins I of the upper cover drill jig are sleeved at the upper ends of the positioning pins I and are locked and fixed by flat pads and fastening nuts, the four upper cover drill jig holes on the upper cover drill jig correspond to the four front covers to be processed on the upper end face of the front cover and the pump body connecting holes one by one, and the four base drill jig holes on the base drill jig correspond to the four outer connecting holes to be processed on the lower end face of the front cover one by one.

The utility model has the advantages that: the gear pump front cover double-sided ectopic hole combination drill jig has a simple structure, two sets of drill jigs are changed into one set of drill jig, one-time clamping procedures are reduced, time and labor are saved, form and position tolerance between processed holes can be guaranteed, and production efficiency and assembly precision are improved.

Drawings

The following description is made in detail by way of example with reference to the accompanying drawings.

FIG. 1 is a front sectional view of a gear pump front cover double-sided ectopic hole combined drill jig.

Fig. 2 is a top view of the drill jig of fig. 1 with the upper cover removed.

Fig. 3 is a bottom view of fig. 1.

Fig. 4 is a structural view of the upper cover of the jig of fig. 1.

In the figure, 1-the jig base; 1-1-drilling a die hole on a base; 2-a second positioning pin; 3-a support column; 4-drilling jig upper cover; 4-1-a through hole of the positioning pin; 4-2-a second positioning pin penetrating hole; 4-3-drilling a die hole on the upper cover; 5-fastening a nut; 6-flat cushion; 7-front cover; 7-1-connecting a front cover to be processed with a pump body connecting hole; 7-2-connecting holes outside the front cover to be processed; 8-a first positioning pin.

Detailed Description

In the embodiment, referring to the attached drawings 1-4, four corners of the upper surface of a drill jig base 1 of a gear pump front cover double-surface ectopic hole combined drill jig are respectively fixed and vertically provided with supporting columns 3 in an interference fit mode, and four base drill jig holes 1-1 are uniformly distributed on the bottom surface of the drill jig base 1. The middle left side of the upper surface of the drill jig base 1 is in threaded connection with a vertically-installed positioning pin II 2, the middle right side of the upper surface of the drill jig base 1 is in threaded connection with a vertically-installed positioning pin I8, and a front cover 7 is movably arranged below the positioning pin I8 in a penetrating mode. The lower end face of the front cover 7 is arranged on the upper end face of the drill jig base 1, four front cover and pump body connecting holes 7-1 to be machined are formed in the upper end face of the front cover 7, and four external connecting holes 7-2 to be machined are formed in the lower end face of the front cover 7. The upper part of the first positioning pin 8 and the upper part of the second positioning pin 2 are jointly penetrated and installed with the upper drill jig cover 4, the lower end surface of the upper drill jig cover 4 is arranged on the upper end surface of the front cover 7, and the upper drill jig cover 4 is respectively provided with a first positioning pin penetrating and installing hole 4-1, a second positioning pin penetrating and installing hole 4-2 and an upper cover drill jig hole 4-3. A second positioning pin penetrating hole 4-2 of the upper drill jig cover 4 is sleeved at the upper end of the second positioning pin 2, and a first positioning pin penetrating hole 4-1 of the upper drill jig cover 4 is sleeved at the upper end of a first positioning pin 8 and is locked and fixed by a flat gasket 6 and a fastening nut 5. Four upper cover drilling die holes 4-3 on the drilling die upper cover 4 correspond to four front covers to be processed on the upper end face of the front cover 7 and pump body connecting holes 7-1 one by one, and four base drilling die holes 7-1 on the die base 1 correspond to four external connecting holes 7-2 to be processed on the lower end face of the front cover 7 one by one.

The use method of the gear pump front cover double-sided ectopic hole combined drill jig comprises the following steps: during the use, arrange the lower terminal surface of jig base 1 in the workstation of drilling machine on, protecgulum 7 suit is on locating pin 8, and jig upper cover 4 is arranged in on the up end of protecgulum 7, and is spacing and fixed with flat pad 6 and fastening nut 5 locking through locating pin 8 and locating pin two 2. And drilling the front cover to be machined and the pump body connecting hole 7-1 on the upper end surface of the front cover 7 through an upper cover drilling jig hole 4-3 on the drilling jig upper cover 4. After the machining is finished, the drill jig is turned over by 180 degrees, the upper end face of the support column 3 is arranged on a workbench of a drilling machine, and then the base drill jig hole 1-1 in the drill jig base 1 is used for drilling a front cover external connecting hole 7-2 to be machined in the lower end face of the front cover 7, so that the double-face ectopic hole combination drill jig machining of the front cover of the gear pump is realized.

Claims

1. A gear pump front cover double-sided ectopic hole combined drill jig comprises a drill jig base (1), a flat gasket (6) and a fastening nut (5), and is characterized in that four support columns (3) are fixedly and vertically arranged at four corners on the upper surface of the drill jig base (1) in an interference fit manner respectively, four base drill jig holes (1-1) are uniformly distributed on the bottom surface of the drill jig base (1), a second positioning pin (2) is vertically arranged at the middle left side of the upper surface of the drill jig base (1) in a threaded connection manner, a first positioning pin (8) is vertically arranged at the middle right side of the upper surface of the drill jig base (1) in a threaded connection manner, a front cover (7) is movably arranged below the first positioning pin (8) in a penetrating manner, the lower end surface of the front cover (7) is arranged on the upper end surface of the drill jig base (1), four front covers to be machined and pump body connecting holes (7-1) are arranged on the upper end surface of the front cover (, a drill jig upper cover (4) is commonly penetrated and installed above the positioning pin I (8) and the positioning pin II (2), the lower end face of the drill jig upper cover (4) is arranged on the upper end face of the front cover (7), a positioning pin I penetrating hole (4-1), a positioning pin II penetrating hole (4-2) and an upper cover drill jig hole (4-3) are respectively arranged on the drill jig upper cover (4), the positioning pin II penetrating hole (4-2) of the drill jig upper cover (4) is sleeved at the upper end of the positioning pin II (2), a positioning pin I penetrating hole (4-1) of the drill jig upper cover (4) is sleeved at the upper end of the positioning pin I (8) and is locked and fixed by a flat gasket (6) and a fastening nut (5), the four upper cover drill jig holes (4-3) on the drill jig upper cover (4) and four front covers to be processed on the upper end face of the front cover (7) are in one-to-one correspondence with the pump body connecting hole (7-1), four base drilling jig holes (1-1) on the drilling jig base (1) and four external connecting holes (7-2) to be processed on the lower end face of the front cover (7) are in one-to-one correspondence.