CN203526640U

CN203526640U - Clamp for drilling

Info

Publication number: CN203526640U
Application number: CN201320649618.1U
Authority: CN
Inventors: 余晓飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-19
Filing date: 2013-10-19
Publication date: 2014-04-09
Anticipated expiration: 2023-10-19

Abstract

The utility model relates to a tool clamp applied to machine manufacturing, in particular to a tool clamp for drilling. The clamp for drilling comprises a rear supporting plate, a front supporting plate and a clamp body, the rear arc matching surface of the rear supporting plate is matched with the rear arc curve surface of a copper element, the front arc combining surface of the front supporting plate is matched with the front arc curve surface of the copper element, a rear cavity of the clamp body is matched with the rear supporting plate in appearance, and a front cavity of the clamp body is matched with the front supporting plate in appearance. Under the assembly state, the rear arc matching surface is matched with the rear arc curve surface, meanwhile, the front arc combining surface is matched with the front arc curve surface, a guide hole with the same diameter as a through hole is formed in the position, corresponding to the through hole, of the clamp body, and the guide hole penetrates through the clamp body.

Description

Fixture for drilling processing

Technical field

The utility model relates to a kind of frock clamp that is applied to machine-building, relates in particular to a kind of for boring frock clamp.

Background technology

In machining, the more machining hole that needs of part or parts, uses bit bore conventionally.It requires the centerline hole of drill axis and workpiece to be machined on same straight line, the processing large hole of diameter, and because bit diameter is large, its rigidity, as long as drill bit blade sharpening is correct, center, hole is just difficult for skew.When machining hole diameter is only when 1 millimeter or less hole, because bit diameter is little, be prone to center, hole and produce deviation, once produce deviation, be difficult to correct the center in hole.One of consequence producing is broken drill, and it is not an easy thing that the drill bit fractureing takes out from hole; Two are hole centre deviation out-of-size scopes of processing, cause the precision of processing parts reduce or scrap, to enterprise, bring loss.

And difficulty is the highest in Drilling operation, should just on curved surface, process at last dark aperture.The utility model, according to a deep hole machining difficult problem on the arc surface of the copper element running in production practices, designs and has come into operation for the fixture of drilling processing, obtains good result of use.

Utility model content

The purpose of this utility model is to be provided for the fixture of drilling processing, utilizes the utility model to realize and on arc surface, processes dark aperture, and the position in hole is accurate, drilling life of bit is long.

For achieving the above object, the utility model discloses the assembly structure schematic diagram for the fixture of drilling processing.For realizing the processing to the through hole on described copper element, the utility model discloses the fixture for drilling processing, it comprises: rear bearing sheet, front end panel and clamp body, the rear circular arc mating surface of described rear bearing sheet and the rear circular arc camber of described copper element match, the front circular arc camber that the front circular arc of described front end panel closes face and described copper element matches, the back cavity of described clamp body and the profile of described rear bearing sheet match, and the ante-chamber of described clamp body and the profile of described front end panel match; Under confined state, described rear circular arc mating surface and described rear circular arc camber match, and meanwhile, described front circular arc closes face and described front circular arc camber matches, position corresponding to described through hole on described clamp body is provided with the suitable pilot hole in aperture, and described pilot hole runs through described clamp body; On described clamp body, be provided with the air admission hole, the first venthole, the second venthole, the 3rd venthole that are interconnected.

Preferably, described rear bearing sheet is embedded in described back cavity, and in interference fit state; Described front end panel is embedded in described ante-chamber, and in interference fit state.The first end face of described rear bearing sheet protrudes from described clamp body, and the second end face of described front end panel protrudes from described clamp body, and described the first end face with the second end face in concordant state.

Preferably, on described front end panel, be also provided with move back cut groove and under move back and cut groove, move back on described cut groove with under move back and cut groove and become plumbness with described pilot hole, and run through described pilot hole.

The beneficial effects of the utility model are:

Utilize described pilot hole can improve the positioning precision in hole, reduce the beat amount of drill bit; Described in utilization, move back and cut groove and can effectively discharge the copper that boring produces and cut.So, utilizing the utility model to realize to process dark aperture on arc surface, the position in hole is accurate, drilling life of bit is long.

By following description also by reference to the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used for explaining embodiment of the present utility model.

Accompanying drawing explanation

Fig. 1 is that the utility model is for the structural representation under explosive view state of a specific embodiment of fixture of drilling processing;

Fig. 2 is that the utility model shown in Fig. 1 is for the assembly structure schematic diagram of the fixture of drilling processing;

Fig. 3 is that the fixture that the utility model is processed for drilling removes the structural representation after copper element.

In figure:

1, copper element, 2, rear bearing sheet, 3, front end panel, 4, clamp body, 12, through hole, 11, front circular arc camber, 13, rear circular arc camber, 21, rear circular arc mating surface, 32, front circular arc closes face, 33, pilot hole, 34, on move back and cut groove, 35, under move back and cut groove, 43, back cavity, 44, ante-chamber, the 22, first end face, the 36, second end face.

The specific embodiment

With reference now to accompanying drawing, describe embodiment of the present utility model, in accompanying drawing, similar copper element numbers represents similar copper element.As mentioned above, the utility model provides a kind of frock clamp that on electric copper element, Drilling operation is used that is applied to, use described frock clamp to realize the drilling processing to dark aperture on the circular arc camber of copper element, have advantages of that positioning precision is high, aperture size precision is high.

Fig. 3 is that the fixture that the utility model is processed for drilling removes the structural representation after copper element, and Fig. 1 is that the utility model is for the structural representation under explosive view state of a specific embodiment of fixture of drilling processing.On the described front circular arc camber 11 of described copper element 1, have a through hole 12, described through hole 12 runs through described front circular arc camber 11.

Fig. 2 is that the utility model shown in Fig. 1 is for the assembly structure schematic diagram of the fixture of drilling processing.For realizing the processing to the described through hole 12 on described copper element 1, the utility model discloses the fixture for drilling processing, it comprises: rear bearing sheet 2, front end panel 3 and clamp body 4, the rear circular arc mating surface 21 of described rear bearing sheet 2 and the rear circular arc camber 13 of described copper element 1 match, the front circular arc camber 11 that the front circular arc of described front end panel 3 closes face 32 and described copper element 1 matches, the back cavity 43 of described clamp body 4 and the profile of described rear bearing sheet 2 match, and the ante-chamber 44 of described clamp body 4 and the profile of described front end panel 3 match; Under confined state, described rear circular arc mating surface 21 and described rear circular arc camber 13 match, simultaneously, described front circular arc closes face 32 and described front circular arc camber 11 matches, position corresponding to described through hole 12 on described clamp body 4 is provided with the suitable pilot hole in aperture 33, and described pilot hole 33 runs through described clamp body 4; On described clamp body 4, be provided with the air admission hole 66, the first venthole 67, the second venthole 68, the 3rd venthole 69 that are interconnected.

Described rear bearing sheet 2 is embedded in described back cavity 43, and in interference fit state; Described front end panel 3 is embedded in described ante-chamber 44, and in interference fit state.The first end face 22 of described rear bearing sheet 2 protrudes from described clamp body 4, and the second end face 36 of described front end panel 3 protrudes from described clamp body 4, and described the first end face 22 with the second end face 36 in concordant state.

On described front end panel 3, be also provided with move back cut groove 34 and under move back and cut groove 35, move back on described cut groove 34 with under move back and cut 33 one-tenth plumbness of groove 35 and described pilot hole, and run through described pilot hole 33.

Below in conjunction with Fig. 1-3, further describe the utility model for the course of work and the operation principle of the fixture of drilling processing:

For the fixture of drilling processing, the back cavity 43 of described clamp body 4 and the profile of described rear bearing sheet 2 match, its two formation interference fit; The ante-chamber 44 of described clamp body 4 and the profile of described front end panel 3 match, its two formation interference fit.Rear circular arc mating surface 21 and described rear circular arc camber 13 on described copper element 1 match, and meanwhile, described front circular arc closes face 32 and described front circular arc camber 11 matches, and the position of described copper element 1 is fixed by frock clamp.Position corresponding to described through hole 12 on described clamp body 4 is provided with the suitable pilot hole in aperture 33, and described pilot hole 33 runs through described clamp body 4.

In drilling process, drill bit is entered by described pilot hole 33, and arrives described upper arc surface 11 and beginning drilling.Described pilot hole 33 is for locating the drilling position of drill bit, to improve the positioning precision of described through hole 12.The iron pin that drilling produces is discharged by moving back on described to cut in groove 34.When getting into described through hole 12 half degree of depth under drill bit, drill bit exits.Whole frock clamp is turned to 180 ° together with described copper element 1.Drill bit is entered by described pilot hole 33, and arrives described front circular arc camber 11 and beginning drilling.Described pilot hole 33 is for locating the drilling position of drill bit, to improve the positioning precision of described through hole 12.The iron pin that drilling produces is discharged by moving back under described to cut in groove 35.When getting into described through hole 12 half degree of depth under drill bit, drill bit exits.So far, complete the drilling processing of whole described through hole 12.

On described clamp body 4, be provided with the air admission hole 66, the first venthole 67, the second venthole 68, the 3rd venthole 69 that are interconnected.Workpiece, in carrying out the process of drilling processing, passes into gases at high pressure in described air admission hole 66, and gas flows out from described the first venthole 67, described the 3rd venthole 69, can blow away the impurity that drilling processing produces; Gas flows out from described the second venthole 68, can clean described clamp body 4.

Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all should think and belong to protection domain of the present utility model.

Claims

1. the fixture for drilling processing, it is characterized in that composed as follows: rear bearing sheet, front end panel and clamp body, the rear circular arc mating surface of described rear bearing sheet and the rear circular arc camber of copper element match, the front circular arc camber that the front circular arc of described front end panel closes face and described copper element matches, the back cavity of described clamp body and the profile of described rear bearing sheet match, and the ante-chamber of described clamp body and the profile of described front end panel match; Under confined state, described rear circular arc mating surface and described rear circular arc camber match, and meanwhile, described front circular arc closes face and described front circular arc camber matches, position corresponding to through hole on described clamp body is provided with the suitable pilot hole in aperture, and described pilot hole runs through described clamp body; On described clamp body, be provided with the air admission hole, the first venthole, the second venthole, the 3rd venthole that are interconnected.

2. the fixture for drilling processing according to claim 1, is characterized in that: described rear bearing sheet is embedded in described back cavity, and in interference fit state; Described front end panel is embedded in described ante-chamber, and in interference fit state, the first end face of described rear bearing sheet protrudes from described clamp body, and the second end face of described front end panel protrudes from described clamp body, and described the first end face with the second end face in concordant state.

3. the fixture for drilling processing according to claim 1, it is characterized in that: on described front end panel, be also provided with move back cut groove and under move back and cut groove, on described, move back cut groove with under move back and cut groove and become plumbness with described pilot hole, and run through described pilot hole.