CN205684767U - A kind of boring cutter gap eliminates structure - Google Patents

Abstract

The utility model discloses a kind of boring cutter gap and eliminate structure, it is positioned at the Cutting tool installation manner groove that handle of a knife forward position is arranged including one, Cutting tool installation manner groove is used for installing cutter, it is characterized in that, Cutting tool installation manner groove front inner wall is obliquely installed and one end consistent with cutter radial direction of feed in front inner wall tilts toward near the direction of cutter, it is equipped with one piece of wedge between outer wall on front side of this Cutting tool installation manner groove front inner wall and cutter, it is that to be affixed side be face consistent with tool feeding direction for inclined-plane, wedge and cutter that wedge and Cutting tool installation manner groove front inner wall are affixed side.This utility model has simple in construction, it is possible to increase efficiency of assembling also eliminates fit-up gap to improve the advantages such as processing stability.

Description

A kind of boring cutter gap eliminates structure

Technical field

This utility model belongs to the boring manufacture field of complicated shape of hole wall, is specifically related to a kind of boring cutter gap and eliminates knot Structure.

Background technology

Boring is the internal diameter Cutting Process of a kind of cutter expanded hole or other circular contour, and its range of application is typically from half Roughing is to polish, and cutter for same is usually boring cutter or boring bar.Bore hole is to forging, and casts out or the adding further of drilling bore hole Work, belongs to the one of boring mode.Bore hole can expand aperture, improves precision, reduces surface roughness, it is also possible to preferably correct The originally deflection of axially bored line.

Common boring cutter structure, generally comprises handle of a knife and is arranged on the cutter of handle of a knife front end, and handle of a knife rear end is arranged on lathe On, provide power to carry out boring processing by lathe during use.But existing boring cutter, boring processing characteristics is limited, big for the degree of depth Deep hole boring processing in diameter more than 6 times, it is also difficult to ensure precision and working (machining) efficiency.

In order to solve the problems referred to above, applicant considers to devise a kind of deep hole boring single shaft motor mechanical arm, its structure bag Including overall cylindrical handle of a knife and cutter, Cutting tool installation manner is in the segment of cutting of handle of a knife front end, and its feature is, on described handle of a knife It is additionally provided with electric feeder, and for realizing the cutter stable supporting device in processed hole inner support.So use Time, handle of a knife rear end to be installed and is fixed on lathe, processed object is installed on lathe and offer master is rotated by lathe cut Cut motion, realize cutter radial feeding adjusting by the electronic feed of electric feeder, drive handle of a knife to realize axial feed by lathe, And then it is capable of electronic feed, it is achieved various inner hole structure borings.The cutter stable supporting device simultaneously arranged can improve Processing stability, it is achieved deep hole boring is processed, improves machining accuracy.

But wherein, in addition it is also necessary to consider while the most convenient raising efficiency of assembling, it is possible to eliminate fit-up gap to improve The problem of processing stability.

Utility model content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of knot Structure is simple, it is possible to increase efficiency of assembling, and eliminates fit-up gap to improve the boring cutter gap elimination structure of processing stability.

In order to solve above-mentioned technical problem, this utility model have employed following technical scheme:

A kind of boring cutter gap eliminates structure, is positioned at, including one, the Cutting tool installation manner groove that handle of a knife forward position is arranged, and cutter is pacified Tankage is used for installing cutter, it is characterised in that Cutting tool installation manner groove front inner wall is obliquely installed and in front inner wall and cutter radial One end that direction of feed is consistent tilts toward near the direction of cutter, on front side of this Cutting tool installation manner groove front inner wall and cutter between outer wall Being equipped with one piece of wedge, wedge and Cutting tool installation manner groove front inner wall and being affixed side is that inclined-plane, wedge and cutter are affixed side Face directly for consistent with tool feeding direction.

The wedge so arranged is finally inserted when mounted and realizes wedging, it is possible to preferably eliminate the axle that Cutting tool installation manner produces To gap and facilitate Cutting tool installation manner.

As optimization, the spacing spiral shell of the handle of a knife outer surface that the bigger one end of wedge is located close to Cutting tool installation manner groove front inner wall Follow closely spacing fixing.

So simple in construction and facilitate the spacing fixing of wedge.

As optimization, it is affixed side at wedge and cutter and multiple roller slot is set along being perpendicular to cutter radial direction of feed, The plurality of roller slot is arranged along cutter radial direction of feed uniform intervals, is provided with hollow rollers and hollow in described roller slot Roller outer surface is exposed to roller slot and for fitting with cutter leading flank.

Sliding friction during assembling process and subsequent tool radial feed is converted into rolling and rubs by so hollow rollers Wipe, improve tool assembly and the smoothness of feeding adjustment, rely on the elasticity of hollow rollers simultaneously, can preferably eliminate gap also Play damping effect.

Yet further, it is also possible to along being perpendicular to the setting of cutter radial direction of feed in the outer lateral side of Cutting tool installation manner groove Multiple second roller slots, the plurality of second roller slot is arranged along cutter radial direction of feed uniform intervals, in the second roller slot Second hollow rollers is installed and the second hollow rollers outer surface is exposed to the second roller slot and for being affixed with cutter lateral surface Close.In such manner, it is possible to the most preferably improve tool assembly and the smoothness of feeding adjustment, and improve damping effect.

Hollow rollers uses the spring steel material of 60Si2Mn further, preferably to produce elastic raising damping effect.

In sum, this utility model has simple in construction, it is possible to increase efficiency of assembling, and eliminates fit-up gap to improve The advantages such as processing stability.

Accompanying drawing explanation

Fig. 1 is the overall structure signal of a kind of deep hole boring single shaft motor mechanical arm that have employed this utility model structure Figure.

Fig. 2 is the A-A sectional view of tool position in Fig. 1.

Fig. 3 be in Fig. 1 the D of tool position to structural representation.

Detailed description of the invention

Below in conjunction with a kind of deep hole boring single shaft motor mechanical arm that have employed this utility model structure and accompanying drawing thereof to this Utility model is described in further detail.

As Figure 1-3, a kind of deep hole boring single shaft motor mechanical arm, including overall cylindrical handle of a knife 1 and cutter, Cutting tool installation manner is in the segment of cutting of handle of a knife 1 front end, and its feature is, described handle of a knife 1 is additionally provided with electric feeder, and For realizing the cutter stable supporting device in processed hole inner support.

So, when above-mentioned robot arm device uses, handle of a knife rear end is installed and is fixed on lathe, when being embodied as after handle of a knife Being provided with connector on the side of end and can be fixed on machine Z-axis feed box outfan by connector, processed object is pacified Install to offer principal cutting movement is rotated on lathe and by machine tool chief axis, realize cutter footpath by the electronic feed of electric feeder To feeding adjusting, drive handle of a knife to realize axial feed by lathe, and then be capable of electronic feed, it is achieved various inner hole structure borings Cut.The cutter stable supporting device simultaneously arranged can improve processing stability, it is achieved deep hole boring is processed, and improves processing essence Degree.

Wherein, described segment of cutting includes that is positioned at the Cutting tool installation manner groove that handle of a knife forward position is arranged, and Cutting tool installation manner groove is used In installing cutter, cutter includes the tool bit part 2 for forming cutting edge and for realizing installation and cutter radial feeding transmission Installing handle part 3, the cutting-edge of tool bit part 2 exposes outside Cutting tool installation manner groove, tool bit part 2 and installing handle part 3 points The design of body formula and employing bolt are connected to one, and the medial surface of installing handle part 3 are provided with driving rack for realizing Cutter radial feeding transmission.

So, cutter uses cutter head and installing handle two-part structure to realize, by tool bit part formation cutting edge, so, and can Each to use different materials for cutting and installing different requirements, reduce into while improving cutting edge processing intensity This.Cutter is divided into two parts simultaneously, facilitates and drive mechanism is set in installing handle part realizes cutter radial feeding transmission.Should Drive mechanism uses driving rack, can facilitate and the engagement of transmission input gear realizes tool feeding feeding transmission, simple in construction And beneficially gear ratio accurately controls.

Wherein, described Cutting tool installation manner groove and corresponding cutter have two sets and arrange around handle of a knife axial line reverse symmetry.So, may be used To improve cutter stress balance, improve processing stability and improve machining accuracy.

Wherein, tool bit part 2 uses Hardmetal materials to prepare, and installing handle part 3 uses No. 45 steels to obtain.So can Meet two parts each functional requirement, relatively low cost.

Wherein, described driving rack includes the first driving rack 4 and the second driving rack 5, the first driving rack 4 and second Driving rack 5 shifts to install and side by side simultaneously with for realizing the cutter radial feeding travelling gear 11 of cutter radial feeding transmission Engagement.

So, two driving racks are set and engage with cutter radial feeding travelling gear simultaneously, two driving cogs can be leaned on Shifting to install of bar so that it is adjacent two gear teeth that misplace in two driving racks fit to cutter radial feeding driving cog respectively Take turns both sides before and after a teeth groove；Thus eliminating the need the back lash using meshed transmission gear easily to exist, nibble less The requirement to gear manufacture precision is significantly reduced while closing the driving error that gap causes.

Wherein, Cutting tool installation manner groove front inner wall is obliquely installed and in front inner wall consistent with cutter radial direction of feed one End tilts toward near the direction of cutter, is equipped with one piece tiltedly on front side of this Cutting tool installation manner groove front inner wall and cutter between outer wall Ferrum 6, wedge 6 and Cutting tool installation manner groove front inner wall be affixed side be inclined-plane, wedge and cutter be affixed side for and tool feeding side Face directly to consistent；So can preferably eliminate the axial gap of Cutting tool installation manner generation and facilitate Cutting tool installation manner.

Wherein, the bigger one end of wedge is limited by the stop screw of the handle of a knife outer surface being located close to Cutting tool installation manner groove front inner wall Position fixes 8；So simple in construction and facilitate the spacing fixing of wedge.

Wherein, the concave-convex fit structure that the first driving rack 4 and the second driving rack 5 are correspondingly arranged by the side that connects side by side 7 realize interlocking coordinates, and has the oblique face that is slidably matched favouring the side that connects in described concave-convex fit structure 7；So, When assembling, first by good to the first driving rack and the second driving rack laid out in parallel, and the concavo-convex of the two side that connects is joined The conjunction structure the most diagonally face of being slidably matched is affixed insertion and completes to be partially submerged into cooperation, is installed to by cutter radial feeding travelling gear Position, less one end of wedge is inserted from bigger one end of wedge installing space, rely on and Cutting tool installation manner groove when wedge inserts The two pieces of driving racks of extruding that are slidably matched of the tilt internal wall of front side mutually close up, and two pieces of driving racks depend on during mutually closing up Cooperation by the oblique face that is slidably matched in concave-convex fit structure therebetween drives two pieces of driving racks along self transmission direction Dislocation is mobile, until the both sides of cutter radial one teeth groove of feeding travelling gear are simultaneously by a gear teeth phase of two pieces of driving racks Stick to tight；Now wedge cannot go insertion again, completes assembling after fixing for wedge holding position.Such assembling process is straight Connect and rely on inserting while cooperation eliminates the need for the fit clearance that gear drive causes of wedge to eliminate Cutting tool installation manner the most together Axial gap；And drastically increase efficiency of assembling, it is ensured that assembly reliability.

During enforcement, it is also possible to be affixed side at wedge 6 and cutter and multiple rolling is set along being perpendicular to cutter radial direction of feed Post groove, the plurality of roller slot is arranged along cutter radial direction of feed uniform intervals, is provided with hollow rollers 9 in described roller slot And hollow rollers 9 outer surface is exposed to roller slot and for fitting with cutter leading flank.So hollow rollers will assemble process It is converted into the smooth and easy of rolling friction, raising tool assembly and feeding adjustment with the sliding friction during subsequent tool radial feed Property, rely on the elasticity of hollow rollers simultaneously, can preferably eliminate gap and play damping effect.

Yet further, it is also possible to along being perpendicular to the setting of cutter radial direction of feed in the outer lateral side of Cutting tool installation manner groove Multiple second roller slots, the plurality of second roller slot is arranged along cutter radial direction of feed uniform intervals, in the second roller slot Second hollow rollers is installed and the second hollow rollers outer surface is exposed to the second roller slot and for being affixed with cutter lateral surface Close.In such manner, it is possible to the most preferably improve tool assembly and the smoothness of feeding adjustment, and improve damping effect.

Hollow rollers uses the spring steel material of 60Si2Mn further, preferably to produce elastic raising damping effect.

In present embodiment, electric feeder includes that one is coaxially rotatably installed in the internally installed chamber of handle of a knife Power transmission shaft 10, power transmission shaft 10 front end is fixedly installed cutter radial feeding travelling gear 11, cutter radial feeding travelling gear 11 Engage and realize cutter radial feeding transmission with the driving rack in the installing handle part of cutter, shaft coupling is leaned in power transmission shaft 10 rear end 12 and the output shaft of a motor 13 being fixed on handle of a knife rear end is fixing connects.So, motor is used to realize cutter radial Feeding transmission, simple in construction and transmission accurately and can utilize the auto-lock function of motor to realize counteresteer, it is ensured that cutter enters Give and the reliability in work process.

Wherein, cutter stable supporting device includes that the outer support mechanism being formed at one section of minor diameter of handle of a knife outer surface is installed Section, outer support mechanism construction section is the most uniformly provided with the outer support mechanism of many groups, and outer support mechanism includes being controlled radially Outwardly directed support member 15.So convenient realization is to the handle of a knife support in processed hole certainly.As preferably during enforcement, outward Support mechanism construction section can be arranged on the handle of a knife outer surface of power transmission shaft position, and preferably supporting & stablizing can be played in this position The effect of handle of a knife.

Described outer support mechanism is the outer support mechanism of link-type, and the outer support mechanism of described link-type includes axially disposed hydraulic cylinder 16 and two bar linkage structures, two bar linkage structures include first connecting rod 17, second connecting rod 18 and support member 15, one end of first connecting rod 17 It is hinged on the outer support mechanism construction section in hydraulic cylinder extension arm front, before one end of second connecting rod 18 is hinged on hydraulic cylinder extension arm End position, the other end of first connecting rod 17 and second connecting rod 18 is the most jointly hinged on inside support member 15 and makes liquid on same hinge The relatively far-end relative movement of first connecting rod 17 and second connecting rod 18 can be driven and by support member edge when cylinder pressure telescopic arm is protruding Radially outward jack-up.So there is simple in construction, the advantage such as easy to control, simultaneously two bar linkage structures can make further by Support member overhangs to hold out against to present at processed hole inwall back link as far as possible and holds out against close to radial direction, so produces self-locking effect, Hydraulic cylinder need not undertake and bigger push against counteracting force, it is ensured that support effect is reliable and stable.Further, described hydraulic cylinder 16 is Dual-rod hydraulic cylinder, before described two bar linkage structures are symmetrically arranged in the telescopic arm at hydraulic cylinder two ends.So, it is achieved front and back support at two Point preferably improves stability of strutting system.As optimization, hydraulic cylinder extension arm front end connects has a coaxial sleeve to be located at outer support mechanism The synchronization collar 19 on construction section, second connecting rod 18 is hinged on the synchronization collar 19.So can better ensure that and support outside each group Mechanism's concordance.

Yet further, the overall rectangular-blocklike of described support member 15 and outer surface are the arcwall face of evagination, the most permissible Preferably it is beneficial to support member outer surface and inwall laminating in hole to be processed realizes supporting.The most described support member 15 outer surface There is one layer of elastomeric layer.So, the internal diameter change of processing in present age hole causes support member outer surface arc can lean on time inconsistent Elastic deformation realizes laminating, improves support strength.

Claims (5)

1. boring cutter gap eliminates a structure, is positioned at the Cutting tool installation manner groove that handle of a knife forward position is arranged, Cutting tool installation manner including one Groove is used for installing cutter, it is characterised in that Cutting tool installation manner groove front inner wall is obliquely installed and enters with cutter radial in front inner wall One end consistent to direction tilts toward near the direction of cutter, joins on front side of this Cutting tool installation manner groove front inner wall and cutter between outer wall Conjunction is provided with one piece of wedge, wedge and Cutting tool installation manner groove front inner wall and is affixed side is that inclined-plane, wedge and cutter are affixed side and are Consistent with tool feeding direction faces directly.

2. boring cutter gap as claimed in claim 1 eliminates structure, it is characterised in that the bigger one end of wedge is located close to cutter The stop screw of the handle of a knife outer surface of mounting groove front inner wall is spacing fixing.

3. boring cutter gap as claimed in claim 2 eliminates structure, it is characterised in that be affixed side along vertical at wedge and cutter Arranging multiple roller slot in cutter radial direction of feed, the plurality of roller slot is arranged along cutter radial direction of feed uniform intervals Cloth, hollow rollers is installed in described roller slot and hollow rollers outer surface be exposed to roller slot and for cutter leading flank phase Laminating.

4. boring cutter gap as claimed in claim 3 eliminates structure, it is characterised in that edge in the outer lateral side of Cutting tool installation manner groove Being perpendicular to cutter radial direction of feed and arrange multiple second roller slot, the plurality of second roller slot is along cutter radial direction of feed Uniform intervals is arranged, and is provided with the second hollow rollers and the second hollow rollers outer surface is exposed to the second roller in the second roller slot Groove also is used for fitting with cutter lateral surface.

5. boring cutter gap as claimed in claim 3 eliminates structure, it is characterised in that hollow rollers uses the spring of 60Si2Mn Steel material.