CN206066003U - The boring tool of U-shaped workpiece bottom - Google Patents

Abstract

This utility model provides the boring tool of U-shaped workpiece bottom, belong to Digit Control Machine Tool process equipment field, including limiting stand, positioning table, positional cylinder and driving oil cylinder, the limiting stand is located at the two ends of U-shaped workpiece longitudinal direction to be clamped with the positional cylinder, the limiting stand is arranged with U-shaped absorption surface to be clamped, the positional cylinder is stretched out, the positioning table is located at the lower end of U-shaped workpiece to be clamped and the two contact is arranged, and the driving hydraulic oil cylinder driving covers that plate is movable with the upper surface of U-shaped workpiece to be clamped to contact setting.This utility model is capable of achieving being accurately positioned for U-shaped workpiece, and can ensure that workpiece is indeformable, is conducive to lifting machining accuracy and working (machining) efficiency.

Description

The boring tool of U-shaped workpiece bottom

Technical field

This utility model belongs to Digit Control Machine Tool process equipment field, more particularly, to the boring tool of U-shaped workpiece bottom.

Background technology

In automobile manufacture industry, the part process requirements of various shapes, wherein numerous parts can be run into because shape portion Irregularly, there is no the conventional clamp being suitable for meet the demand that machining center installs positioning, if matched somebody with somebody using other machine tools Manual processing is closed, machining accuracy and work efficiency can be substantially reduced again, affect to produce, the locating and machining of wherein U-shaped workpiece is exactly One of problem, existing frequently-used U-shaped part fixture be respectively the offside of U-tube part is clamped after again pipe fitting is carried out plus Work, but it is difficult to ensure that the pipeline of U-tube part is indeformable, in particular for thinner thickness and by the U-shaped part of certain depth for, In order to ensure machining accuracy, positioning fixture is even more and is even more important.

Utility model content

Problem to be solved in the utility model is to provide one kind and can be accurately positioned and can guarantee that the indeformable drilling of U-shaped workpiece Processing tool.

To reach above-mentioned purpose, what the technical solution of the utility model was realized in：U-shaped workpiece bottom is boring to be controlled Tool, including limiting stand, positioning table, positional cylinder and driving oil cylinder, the limiting stand is located at U-shaped workpiece to be clamped with the positional cylinder The two ends of longitudinal direction, the limiting stand arranged with U-shaped absorption surface to be clamped, the positional cylinder stretch out under state with U-shaped to be clamped Absorption surface is arranged, and the positioning table is located at the lower end of U-shaped workpiece to be clamped and the two contact is arranged, the driving hydraulic oil cylinder driving Cover that plate is movable with the upper surface of U-shaped workpiece to be clamped to contact setting.

Further, the limiting stand near one end of the positional cylinder be provided with the cushion pad of supporting setting, pressure strip and Spacing preiection, the cushion pad are located between the pressure strip and limiting stand, the spacing preiection be located on the pressure strip and Arrange with U-shaped absorption surface to be clamped.

Further, the quantity of the spacing preiection is two, two spacing preiections U-shaped workpiece relatively to be clamped Longitudinal center plane is symmetrical arranged, and the quantity of the positional cylinder is two, two positional cylinders U-shaped workpiece relatively to be clamped it is vertical It is symmetrical arranged to median plane.

Further, the positioning table includes the first locating piece, the width of first locating piece and the opening of U-shaped workpiece Width is consistent, and first locating piece is symmetrically arranged on two with the second locating piece, and the height of second locating piece is less than described The height of the first locating piece, the upper end of second locating piece are provided with two positioning convex of scattering device.

Further, described one end for covering plate is hinged with the force-output shaft for driving oil cylinder, and the plate that covers is with the driving Connecting rod is additionally provided between oil cylinder, described connecting rod one end is hinged near the end for driving oil cylinder with plate is covered, the other end It is hinged with the upper surface for driving oil cylinder, the plate that covers is provided with pinboard away from the lower end for driving oil cylinder one end, institute The two ends for stating pinboard bottom are provided with locating dowel, and the lower surface of the locating dowel is arc and the upper end with U-shaped workpiece to be clamped Face contact is arranged.

Compared with prior art, this utility model has the advantages and positive effects that：1st, this utility model is entirely processed During adopt machinery positioning, it is to avoid the error of artificial clamping, improve repetitive positioning accuracy, and then ensure that processing Precision, and drive using oil cylinder, great efforts are clamped, is clamped firmly, it is stable and reliable for performance；2nd, hole machined positioning component can be real Existing workpiece or so and upper and lower positioning, are conducive to the processing in back side hole, workpiece openings end to carry out using the built-in method of supporting-core It is internal to support, it is to avoid to cause workpiece to deform in clamping process, be conducive to the lifting of machining accuracy.

Description of the drawings

The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new The schematic description and description of type is used to explain this utility model, does not constitute to improper restriction of the present utility model. In accompanying drawing：

Fig. 1 is the top view of this utility model U-shaped workpiece；

Fig. 2 is the front view of this utility model U-shaped workpiece；

Fig. 3 is the front view that this utility model face locating and machining component is coordinated with big base plate；

Fig. 4 is the top view that this utility model face locating and machining component is coordinated with big base plate；

Fig. 5 is the left view that this utility model face locating and machining component is coordinated with big base plate；

Fig. 6 is the top view of this utility model face locating and machining component；

Fig. 7 is the front view of this utility model face locating and machining component；

Fig. 8 is the left view of this utility model face locating and machining component；

Fig. 9 is the A portions detail drawing of this utility model face locating and machining component；

Figure 10 is the structural representation that the first positioning boss of this utility model and the second positioning boss coordinate；

Figure 11 is the front view that this utility model hole machined positioning component is coordinated with big base plate；

Figure 12 is the left view that this utility model hole machined positioning component is coordinated with big base plate；

Figure 13 is the front view of this utility model hole machined positioning component；

Figure 14 is the top view of this utility model hole machined positioning component.

Description of reference numerals：

The big base plates of 1-；2- keys；3- turntables；31- stationary planes；4- clamping cylinders；41- clamping plates；5- locating racks；51- supporting-cores； The first positioning boss of 52-；The second positioning boss of 53-；6- bases；7- support bases；The first fixed plates of 71-；The second fixed plates of 72-； 8- rotates hold-down cylinder；81- hold-down heads；9- installing plates；91- pushes away cylinder；92- cuts somebody's hair；10- guide tables；21- drives oil cylinder；22- is covered Plate；221- connecting rods；23- pinboards；24- locating dowels：25- positioning tables；The first locating pieces of 251-；The second locating pieces of 252-； 253- positioning convex；26- positional cylinders；261- positioning heads；27- limiting stands；271- cushion pads；272- pressure strips；273- limit convexes Rise；60- U-shaped workpiece to be clamped；61- open ends；62- inner side planes；63- medial planes；64- rear ends；65- inner arcs Face.

Specific embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in this utility model can To be mutually combined.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " on ", D score, The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate Or the device or element of hint indication with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that It is to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating Or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately It is described, " multiple " are meant that two or more, in this utility model, the main tapping just to numerical control machining center, Uprights direction is for " afterwards ", main tapping direction is " front "；Left and right is also as benchmark.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, can be by concrete condition understanding State concrete meaning of the term in this utility model.

Below in conjunction with the accompanying drawings specific embodiment of the utility model is elaborated.

As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, this utility model is the boring tool of U-shaped workpiece bottom, including face processing is calmly Hyte part, hole machined positioning component and big base plate 1, big base plate 1 are fixed on the workbench of lathe and are entered by key 2 therebetween Row is oriented to, and face locating and machining component and hole machined positioning component are each attached to the upper surface of big base plate 1, face locating and machining component with Hole machined positioning component is directed to 60 two different process segments of U-shaped workpiece to be clamped；Face locating and machining component includes 3 He of turntable Clamp assemblies, turntable 3 are fixed on big base plate 1, and, perpendicular to the upper surface of big base plate, clamp assemblies are solid for the stationary plane 31 of turntable 3 It is scheduled on the stationary plane 31 of turntable 3 and drives rotation, clamp assemblies to include support base 7, the rear of 7 upper end of support base by turntable 3 Locating rack 5 is provided with, the front end face of locating rack 5 contacts setting with the open end 61 of U-shaped workpiece to be clamped 60, sets in front of support base Cylinder 91 is pushed away, cylinder 91 is pushed away and setting is contacted with the rear ends 64 of U-shaped workpiece to be clamped 60, the left and right sides of 7 upper end of support base is also Clamping cylinder 4 is arranged with, the front end of clamping cylinder 4 is provided with clamping plate 41, and clamping plate 41 is located at locating rack 5 and pushes away between cylinder 91, right Claim the minimum range between the clamping plate 41 for arranging consistent with the width of U-shaped workpiece to be clamped 60, i.e., between clamping plate 41 most Small distance is consistent with the distance between two medial planes 63, it is ensured that the fastness of clamping；The left and right sides of the upper end of support base 7 Rotation hold-down cylinder 8 is additionally provided with, hold-down cylinder 8 is rotated and is located at clamping cylinder 4 and pushes away between cylinder 91, the upper end for rotating hold-down cylinder 8 is provided with pressure Tight 81, under clamped condition, the lower surface of hold-down head 81 contacts setting, total with the upper surface of U-shaped workpiece to be clamped 60 Realize positioning of the U-shaped workpiece to be clamped 60 in up, down, left, right, before and after six direction, it is ensured that firm position and positioning Precision.

Preferably, as shown in figure 4, turntable 3 is provided with two stationary planes 31, each stationary plane 31 is arranged side by side above Clamp assemblies are provided with, are once shut down and two workpiece can be installed, while completing the processing of two workpiece, reduced the number of times shut down, carry Rise the efficiency of processing.

Preferably, as shown in figure 8, clamp assemblies also include base 6, base 6 is fixed on the stationary plane 31 of turntable 3, Support seat 7 includes that the first fixed plate 71 and the second fixed plate 72, the first fixed plate 71 and the second fixed plate 72 are vertically arranged and form L Shape, on base 6, the second fixed plate 72 is vertically with base 6 and horizontally disposed, and locating rack 5 is located at for 71 solid lock of the first fixed plate The upper surface of the second fixed plate 72, clamping cylinder 4 are installed in the left and right sides of locating rack 5, and the upper end of the second fixed plate 72 is away from One end of one fixed plate 71 is vertically provided with installing plate 9, and installing plate 9 is provided with and pushes away cylinder 91, and the force-output shaft axis for pushing away cylinder 91 is located Vertical plane overlap with the vertical median plane of U-shaped workpiece to be clamped 60 setting, be centrally located, uniform force, clamp more stable； It is highly preferred that the upper surface of the second fixed plate 72 is additionally provided with guide table 10, fore-and-aft direction guide table 10 is located at and pushes away cylinder 91 and positioning Between frame 5, left and right directions, guide table 10 are located at symmetrically arranged two and rotate between hold-down cylinder 8, the upper surface essence of guide table 10 Processing and milled processed.

Preferably, locating rack 5 includes the supporting-core 51 for being arranged on front center and is symmetricly set on the first positioning of both sides Boss 52, the distance of first fixed plate of front end distance 71 of supporting-core 51 are more than 52 the first fixed plate of distance 71 of the first positioning boss Distance, the width that the width of supporting-core 51 is open with U-shaped workpiece 60 to be clamped is consistent, i.e., the both sides of supporting-core 51 are put down with inner side Face 62 contacts, and plays certain supporting role, it is to avoid workpiece causes U-shaped workpiece to be clamped 60 to deform after the Set and Positioning of both sides, And then lifting the precision of processing, it is to avoid processing is because workpiece deformation, the qualification rate of improving product；It is highly preferred that supporting-core 51 Circular arc of the front end for indent, the diameter of interior concave arc are identical with the diameter of the inside cambered surface 65 of U-shaped workpiece to be clamped 60, and fill Under clip-like state, interior concave arc is overlapped with internal cambered surface 65 setting, and what is produced during link both sides clamping and positioning to a certain extent answers Impact of the force deformation to incision position.

Preferably, as illustrated in fig. 7 and fig. 10, the front end of the first positioning boss 52 is additionally provided with the second positioning boss 53, and second 53 one-tenth corners of positioning boss arrange and contact setting with the rear ends 64 of U-shaped workpiece to be clamped 60, and large-area face is connect Thixotroping is changed to the small area contact of corner, while reducing difficulty of processing, advantageously ensures that U-shaped workpiece 60 to be clamped is arranged flat Face degree.

Preferably, as shown in figure 9, the front end for pushing away 91 force-output shaft of cylinder is provided with and cuts somebody's hair 92, cut somebody's hair 92 with the force-output shaft for pushing away cylinder 91 Be coaxially disposed, cut somebody's hair 92 away from push away cylinder 91 one end be cambered surface, cambered surface contact with rear ends 64 for line face contact, frictional force It is little, impression will not be produced to the outer surface of U-shaped workpiece to be clamped 60, it is to avoid part is destroyed in clamping process.

As is illustrated by figs. 11 and 12, hole machined positioning component includes limiting stand 27, positioning table of the solid lock on big base plate 1 25th, positional cylinder 261 and driving oil cylinder 21, limiting stand 27 are located at the two ends of 60 longitudinal direction of U-shaped workpiece to be clamped, limit with positional cylinder 261 Position platform 27 contacts setting with U-shaped workpiece to be clamped 60, and positional cylinder 261 to stretch out and contact setting with U-shaped workpiece to be clamped 60 under state, Positioning table 25 is located at the lower end of U-shaped workpiece to be clamped 60 and the two contact is arranged, and drives oil cylinder 21 to drive and covers plate 22 and wait to press from both sides The movable contact in upper surface of tight U-shaped workpiece 60 is arranged, position up and down while, carry out left and right positioning, it is ensured that in vertical direction The processing in hole, registration are firm, good stability.

Preferably, as shown in figure 13, limiting stand 27 near one end of positional cylinder 261 be provided with supporting setting cushion pad 271, Pressure strip 272 and spacing preiection 273, cushion pad 271 are located between pressure strip 272 and limiting stand 27, and spacing preiection 273 is located at pressure Setting is contacted on tight plate 272 and with U-shaped workpiece to be clamped 60, bump contact positioning is converted to into small area contact positioning, drop The difficulty of low processing, and be conducive to the point location of workpiece, more precisely；The positional cylinder of cushion pad 271 and the other end is set 261 are equipped with, and are capable of achieving certain buffering, it is to avoid after positional cylinder 261 is moved during clamping, workpiece and spacing preiection The hard contact of machinery, the probability of reduction surface damage are produced during 273 compressions.

Preferably, as shown in figure 14, the quantity of spacing preiection 273 is two, two spacing preiections 273 U relatively to be clamped The longitudinal center plane of shape workpiece 60 is symmetrical arranged, and the quantity of positional cylinder 261 is two, two positional cylinders 261 U-shaped relatively to be clamped The longitudinal center plane of workpiece 60 is symmetrical arranged, and symmetrical structure is more uniformly stressed, and clamps firmly, reliable and stable.

Preferably, positioning table 25 includes the first locating piece 251, the width of the first locating piece 251 and U-shaped workpiece to be clamped 60 A/F it is consistent, i.e., it is consistent with the spacing of two inner side planes 62, play internal supporting role, the both sides of locating piece 251 The second locating piece 252 is arranged with, the height of the second locating piece 252 is less than the height of the first locating piece 251, the second locating piece 252 upper end is provided with two positioning convex 253 of scattering device, and positioning convex 253 contacts setting with end plane 61,

Preferably, cover one end of plate 22 and drive the force-output shaft of oil cylinder 21 to be hinged, cover plate 22 with drive oil cylinder 21 it Between be additionally provided with connecting rod 221,221 one end of connecting rod is hinged near the end for driving oil cylinder 21 with plate 22 is covered, the other end with drive The upper surface of dynamic oil cylinder 21 is hinged, and covers plate 22 and is provided with pinboard 23 away from the lower end for driving 21 one end of oil cylinder, under pinboard 23 The two ends in portion are provided with locating dowel 24, and the lower surface of locating dowel 24 is that arc and being contacted with the upper surface of U-shaped workpiece to be clamped 60 is set Put, the cambered design of 24 lower end of locating dowel, the face face of two workpiece is converted to into the contact of line face, friction is reduced, it is to avoid treat The contact for clamping U-shaped workpiece 60 frays；It is highly preferred that the 23 of pinboard are centrally positioned in the upper surface of U-shaped workpiece to be clamped 60, And pinboard 23 is angularly disposed, the longitudinal centre line of pinboard 23 is 45 with the longitudinal center plane angle of U-shaped workpiece to be clamped 60 Degree, it is angularly disposed in the case of, the interval of two locating dowels 24 is larger, covers effect more stable.

During actual use, first-selection is fixed on big base plate 2 on the workbench of lathe, and arranges between Key is oriented to, it is ensured that the positioning precision of installation, and then turntable 3 is fixed on big base plate 2, then installs two clamping groups U-shaped workpiece to be clamped 60 is placed on the upper surface of guide table 10 by part, and above guide table 10, coating butter reduces frictional force, Then start and push away cylinder 91, cutting somebody's hair 92 contacts with back flat 64, drive U-shaped workpiece to be clamped 60 to move backward, complete end flat Face 61 contact with the second positioning boss 53 is arranged, while complete the contact with inner side plane 62 of supporting-core 51 setting, it is forward and backward with After the completion of lower three directions positioning, start and rotate hold-down cylinder 8, hold-down head 81 rotates after rising and completes to U-shaped workpiece to be clamped 60 The positioning of upper end, finally starts clamping cylinder 4, and clamping plate 41 completes the positioning to medial plane 63, is finally completed six direction Positioning and internal support, registration and avoid pinching deformation, carry out the processing of internal cambered surface 65, process after the completion of clamping After the completion of U-shaped workpiece to be clamped 60 is removed, be installed on hole machined component, on hole machined component, U-shaped workpiece to be clamped 60 Open Side Down and horizontally set, and end plane 61 contacts setting with positioning table 51, and open end 61 contacts setting with positioning convex, One end contacts setting with spacing preiection, then starts positional cylinder 26, and positioning head 261 is set with the end thereof contacts for clamping U-shaped workpiece 60 Put, so as to complete the positioning of left and right directions, finally start and drive oil cylinder 21, drive covers plate 22 and rotates, it is ensured that locating dowel 24 is pressed Tight rear ends 24, so as to complete the processing in hole in rear ends 24, registration favorably lifts machining accuracy, whole to process Process adopts machinery positioning, it is to avoid the error that artificial operation brings, it is ensured that repetitive positioning accuracy, improves part processing Precision, concordance and qualification rate.

Above one embodiment of the present utility model is described in detail, but the content is only of the present utility model Preferred embodiment, it is impossible to be considered as limiting practical range of the present utility model.It is all to be made according to this utility model application range Impartial change with improve etc., still all should belong within patent covering scope of the present utility model.

Claims (5)

1. The boring tool of 1.U shape workpiece bottoms, it is characterised in that：Including limiting stand (27), positioning table (25), positional cylinder (261) With drive oil cylinder (21), the limiting stand (27) and the positional cylinder (261) to be located at the two ends of U-shaped workpiece longitudinal direction to be clamped, institute State limiting stand (27) to arrange with U-shaped absorption surface to be clamped, the positional cylinder (261) stretch out under state with U-shaped workpiece to be clamped Contact is arranged, and the positioning table (25) is located at the lower end of U-shaped workpiece to be clamped and the two contact is arranged, driving oil cylinder (21) Driving covers that plate (22) is movable with the upper surface of U-shaped workpiece to be clamped to contact setting.
2. 2. the boring tool of U-shaped workpiece bottom according to claim 1, it is characterised in that：The limiting stand (27) is close One end of the positional cylinder (261) is provided with cushion pad (271), pressure strip (272) and the spacing preiection (273) of supporting setting, institute State cushion pad (271) to be located between the pressure strip (272) and limiting stand (27), the spacing preiection (273) is located at the pressure Arrange on tight plate (272) and with U-shaped absorption surface to be clamped.
3. 3. the boring tool of U-shaped workpiece bottom according to claim 2, it is characterised in that：The spacing preiection (273) Quantity is two, and the longitudinal center plane of two spacing preiections (273) U-shaped workpiece relatively to be clamped is symmetrical arranged, described fixed The quantity of position cylinder (261) is two, and the longitudinal center plane of two positional cylinders (261) U-shaped workpiece relatively to be clamped symmetrically sets Put.
4. 4. the boring tool of U-shaped workpiece bottom according to claim 1, it is characterised in that：The positioning table (25) includes First locating piece (251), the width of first locating piece (251) are consistent with the A/F of U-shaped workpiece, the locating piece (251) be symmetrically arranged on two with the second locating piece (252), the height of second locating piece (252) is less than the described first positioning The height of block (251), the upper end of second locating piece (252) are provided with two positioning convex (253) of scattering device.
5. 5. the boring tool of U-shaped workpiece bottom according to claim 1, it is characterised in that：It is described to cover the one of plate (22) Holding and being hinged with the force-output shaft for driving oil cylinder (21), described covering connecting rod is additionally provided between plate (22) and driving oil cylinder (21) (221), described connecting rod (221) one end with cover plate (22) near it is described drive oil cylinder (21) end be hinged, the other end with The upper surface for driving oil cylinder (21) is hinged, and the plate (22) that covers is provided with away from the lower end for driving oil cylinder (21) one end Pinboard (23), the two ends of pinboard (23) bottom are provided with locating dowel (24), and the lower surface of the locating dowel (24) is arc Shape and setting is contacted with the upper surface of U-shaped workpiece to be clamped.