CN101386079A

CN101386079A - Drilling jig for drilling deep hole on medium-thickness reinforcement bar in vacuum pump

Info

Publication number: CN101386079A
Application number: CNA2008101554786A
Authority: CN
Inventors: 张笑山
Original assignee: LIYANG KEHUA MACHINE MANUFACTURE CO Ltd
Current assignee: Kehua Holdings Co ltd; Kelong Holdings Ltd
Priority date: 2008-10-06
Filing date: 2008-10-06
Publication date: 2009-03-18
Anticipated expiration: 2028-10-06
Also published as: CN100586622C

Abstract

The invention provides a drilling die which drills deep holes on a stiffener of internal casting of middle wall of a vacuum pump. Two sides of a vertical plate are respectively provided with a guiding frame; the guiding frame is provided with a guiding column which is provided with a sliding block which is provided with a V-shaped positioning block; the rear part of the vertical plate is provided with a cam plate; the center of the cam plate is sleeved on the shaft of a pulling rod; two sides of the cam plate are provided with a curved slot respectively; two pins are fixed at two V-shaped positioning blocks respectively and are respectively sheathed in the curved slot; the cam plate at one side is provided with a cam plate handle and a spring is arranged between the cam plate at the other side and the vertical plate; the upper part of the vertical plate is provided with a drilling die block and the middle of which is provided with a drilling sleeve; the upper part of the drilling sleeve is provided with a drilling bit; the middle part of the vertical plate is provided with a pulling rod which is provided with a slotted washer and a nut; the drilling die has the advantages that the drilled holes can be ensured to be at the central position of the whole length of the stiffener and not to lead the middle wall of the vacuum pump to be abandoned caused by misaligned drilling or drilling through.

Description

A kind of on vavuum pump mesospore reinforcement the drill jig of drilling deep hole

Technical field

The invention belongs to the Machining Technology field, it be a kind of in vavuum pump the drill jig of drilling deep hole on the reinforcement of pars intramuralis foundry goods, the hole of being bored will remain on the place, centre on the whole reinforcement length.

Background technology

The mesospore of vavuum pump is a hollow casting.Middle pars intramuralis at vavuum pump has a reinforcement that radially protrudes the plane.To get out one by the thin deep hole of outer ring downwards at this place, reinforcement centre along the straight-through middle part of reinforcement dead eye.Require the whole length centre place of hole drill at reinforcement.General boring method all is to utilize the dead eye location that processes, and the flange of side is withstood with pin control angle again.But dead eye and reinforcement do not have the casting perimeter of direct size contact and external diameter bigger tolerance are arranged, and reinforcement is at middle pars intramuralis, so can't guarantee reinforcement is positioned on the stable upright position.The reinforcement physical dimension is less again, and the deflection of holing so very easily or reinforcement drilled is scrapped the mesospore of vavuum pump.

Summary of the invention

The purpose of this invention is to provide a kind of in vavuum pump the reinforcement centre place of pars intramuralis foundry goods bore the drill jig of a deep hole.This drill jig can be guaranteed the place, whole length centre at reinforcement, the hole of being bored, not can because of hole drill partially or drill the mesospore of vavuum pump is scrapped.

Technical scheme of the present invention is: the leading truck that identical horizontal direction is provided with all is equipped with on the riser both sides.Lead all is housed on the leading truck of both sides.All being equipped with on the lead of both sides can be along the mobile to the left and right sides slide block of lead.The V-type locating piece all is housed on two slider edges.Lobe plate is equipped with at the riser rear portion.The lobe plate center has the hole, and this borehole jack is contained in the axle of pull bar and goes up and can rotate on pull rod shaft.The lobe plate both sides have the archimedes curve groove of symmetry.Two pins are fixed on the V-type locating piece of both sides and are set in the curved groove on lobe plate both sides.On the lobe plate lobe plate handle is housed on one side.Between another side lobe plate and the riser spring is housed.The drill jig piece is equipped with on riser top.Drill bushing is housed in the middle of the drill jig piece.Drill bushing top is drill bit.Pull bar is equipped with at the riser middle part, and fluting packing ring and nut are housed on the pull bar.

Operation principle of the present invention is: make lobe plate overcome spring tension by the lobe plate handle downwards during work and the clockwise direction rotation.The archimedes curve groove of its both sides was also along with rotation when lobe plate rotated.Curved groove rotates pin is moved to the left and right sides.The mobile drive V-block of pin and slide block also move on lead synchronously to the left and right sides.Pitch enlargement between the V-block of both sides is to the width that surpasses vavuum pump mesospore foundry goods at this moment.Install to the dead eye cover of vavuum pump mesospore foundry goods on the pull bar and make foundry goods be close to riser.Unclamp the lobe plate handle, spring pulling lobe plate is to counterclockwise rotating.Driving pin when the curved groove of lobe plate both sides rotates moves to center position.The mobile drive V-block and the slide block of pin move to center position on lead synchronously.V-block is just in time clamped the semicircular flanges of vavuum pump mesospore foundry goods both sides simultaneously and the mesospore foundry goods is located when center position moves.This moment is at dress fluting packing ring on the pull bar and screw nut vavuum pump mesospore foundry goods is pressed on the riser.The drill bit of drilling machine just can pass through riser top drill bushing, directly gets out deep hole downwards from the mesospore top.Take down nut and fluting packing ring after boring is finished, depress handle again, V-block just can take off workpiece after two side shiftings.Change new workpiece and just can continue deep hole processing.

Advantage of the present invention has provided a kind of drill jig that bores a deep hole in vavuum pump on the reinforcement of pars intramuralis foundry goods.The locking phase of this drill jig makes the vertical position of shape flange energy automatic capturing reinforcement, symmetry half garden of workpiece to the V-block that moves.Utilizing the both sides half garden shape flange and the reinforcement of mesospore is same die casting, can keep both sides half garden shape flange and reinforcement to be in the relative fixed position like this.The hole of boring with regard to making like this is in the center position of reinforcement, not can because of hole drill partially or drill the mesospore of vavuum pump is scrapped.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left TV structure schematic diagram of Fig. 1.

Among the figure: 1, spring, 2, pin, 3, curved groove, 4, lobe plate, 5, drill bit, 6, drill bushing, 7, drill jig piece, 8, riser, 9, leading truck, 10, the lobe plate handle, 11, the V-type locating piece, 12, lead, 13, slide block, 14, workpiece, 15, pull bar, 16, the fluting packing ring, 17, nut.

The specific embodiment

As shown in Figure 1 and Figure 2: a kind of on vavuum pump mesospore reinforcement the drill jig of drilling deep hole.The leading truck 9 that identical horizontal direction is provided with all is equipped with on riser 8 both sides.Lead 12 all is housed on the both sides leading truck 9.All being equipped with on the both sides lead 12 can be along the mobile to the left and right sides slide block 13 of lead 12.On two slider edges 13 V-type locating piece 11 is housed all.Lobe plate 4 is equipped with at riser 8 rear portions.Lobe plate 4 centers have the hole, and the axle that this borehole jack is contained in pull bar 15 is gone up and can be rotated on 15 on pull bar.Lobe plate 4 both sides have the archimedes curve groove 3 of symmetry.Two pins 2 are fixed on the both sides V-type locating piece 11 and are set in the curved groove 3 on lobe plate 4 both sides.On the lobe plate 4 lobe plate handle 10 is housed on one side.Between another side lobe plate 4 and the riser 8 spring 1 is housed.Drill jig piece 7 is equipped with on riser 8 tops, in the middle of the drill jig piece 7 drill bushing 6 is housed, and drill bushing 6 tops are drill bit 5.Pull bar 15 is equipped with at riser 8 middle parts, and fluting packing ring 16 and nut 17 are housed on the pull bar 15.

Claims

1, a kind of on vavuum pump mesospore reinforcement the drill jig of drilling deep hole, it is characterized in that: the leading truck that identical horizontal direction is provided with all is equipped with on the riser both sides, lead all is housed on the leading truck of both sides, all being equipped with on the lead of both sides can be along the mobile to the left and right sides slide block of lead, the V-type locating piece all is housed on two slider edges, lobe plate is equipped with at the riser rear portion, the lobe plate center has the hole, this borehole jack is contained in the axle of pull bar and goes up and can rotate on pull rod shaft, the lobe plate both sides have the archimedes curve groove of symmetry, two pins are fixed on the V-type locating piece of both sides and are set in the curved groove on lobe plate both sides, on the lobe plate lobe plate handle is housed on one side, between another side lobe plate and the riser spring is housed, the drill jig piece is equipped with on riser top, in the middle of the drill jig piece drill bushing is housed, and drill bushing top is drill bit, pull bar is equipped with at the riser middle part, and fluting packing ring and nut are housed on the pull bar.