CN206065997U - U-shaped workpiece face fixture for processing - Google Patents

Abstract

This utility model provides U-shaped workpiece face fixture for processing, belong to Digit Control Machine Tool process equipment field, including turntable and clamp assemblies, turntable is fixed on the workbench of lathe by big base plate, the stationary plane of turntable is perpendicular to the upper surface of big base plate, clamp assemblies are fixed on the stationary plane of turntable and are driven by turntable and rotate, clamp assemblies include support base, the rear of support base upper end is provided with locating rack, front is provided with and pushes away cylinder, the left and right sides of support base upper end is also arranged with clamping cylinder, the front end of clamping cylinder is provided with clamping plate, minimum range between symmetrically arranged clamping plate is consistent with the width of U-shaped workpiece to be clamped, the left and right sides of the upper end of support base is additionally provided with rotation hold-down cylinder, the upper end for rotating hold-down cylinder is provided with hold-down head.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

U-shaped workpiece face fixture for processing

Technical field

This utility model belongs to Digit Control Machine Tool process equipment field, more particularly, to U-shaped workpiece face fixture for processing.

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 processing of U-shaped workpiece Use tool.

To reach above-mentioned purpose, what the technical solution of the utility model was realized in：U-shaped workpiece face fixture for processing, Including turntable and clamp assemblies, the turntable is fixed on the workbench of lathe by big base plate, and the stationary plane of the turntable hangs down Directly in the upper surface of the big base plate, the clamp assemblies are fixed on the stationary plane of the turntable and are driven by the turntable and revolve Turn, the clamp assemblies include support base, and the rear of the support base upper end is provided with locating rack, and front is provided with and pushes away cylinder, described The left and right sides of support seat upper end is also arranged with clamping cylinder, and the front end of the clamping cylinder is provided with clamping plate, and the clamping plate is located at The locating rack and it is described push away between cylinder, the minimum range between the symmetrically arranged clamping plate and U-shaped workpiece to be clamped Width is consistent, and the left and right sides of the upper end of the support base is additionally provided with rotation hold-down cylinder, and the rotation hold-down cylinder is located at the folder Tight cylinder and it is described push away between cylinder, the upper end for rotating hold-down cylinder is provided with hold-down head, under clamped condition, the lower end of the hold-down head Face contacts setting with the upper surface of U-shaped workpiece to be clamped.

Further, the turntable is provided with two stationary planes, and each stationary plane is arranged side by side and is equipped with the folder above Hold component.

Further, the clamp assemblies also include base, and the base is fixed on the stationary plane of the turntable, described Support base includes that the first fixed plate and the second fixed plate, first fixed plate and second fixed plate are vertically arranged and are formed L shape, on the base, second fixed plate is perpendicular to the base and horizontally disposed for the first fixed plate solid lock, Described to position the upper surface for being erected at second fixed plate, the clamping cylinder is installed in the left and right sides of the locating rack, institute The upper end for stating the second fixed plate is vertically provided with installing plate away from one end of first fixed plate, and the installing plate is provided with and pushes away Cylinder, the vertical plane that the force-output shaft axis for pushing away cylinder is located are overlapped with the vertical median plane of U-shaped workpiece to be clamped setting.

Further, the locating rack includes the supporting-core for being arranged on front center and is symmetricly set on the first of both sides determining Position boss, the front end of the supporting-core apart from first fixed plate distance more than first positioning boss apart from described the The distance of one fixed plate, the width of the supporting-core are consistent with the width of U-shaped workpiece openings to be clamped.

Further, the front end of first positioning boss is additionally provided with the second positioning boss, second positioning boss into Corner arranges and contacts setting with the rear end face of U-shaped workpiece to be clamped.

Further, the front end for pushing away cylinder force-output shaft is provided with and cuts somebody's hair, it is described cut somebody's hair it is coaxial with the force-output shaft for pushing away cylinder Arrange, described cutting somebody's hair away from described one end for pushing away cylinder is cambered surface.

Compared with prior art, this utility model has the advantages and positive effects that：1st, this utility model arranges whole Machinery positioning is adopted in the course of processing, it is to avoid the error of artificial clamping, improves repetitive positioning accuracy, so ensure that plus The precision of work, and drive using oil cylinder, great efforts are clamped, is clamped firmly, it is stable and reliable for performance；2nd, the two of clamp assemblies Side is positioned using clamping cylinder, and lower end is supported positioning, and upper end drives hold-down head to be compressed by hold-down cylinder is rotated, rear end Positioning is carried out by locating rack to give, front end is carried out movement and the positioning of fore-and-aft direction by cylinder is pushed away, six direction is positioned, positioning accurate Degree is high, and workpiece openings end carries out internal support using the built-in method of supporting-core, it is to avoid cause workpiece to become in clamping process Shape, is 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 U-shaped workpiece face fixture for processing, including face locating and machining Component, hole machined positioning component and big base plate 1, big base plate 1 are fixed on the workbench of lathe and are carried out by key 2 therebetween Guiding, 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 and hole Locating and machining component is directed to 60 two different process segments of U-shaped workpiece to be clamped；Face locating and machining component includes turntable 3 and folder Component is held, turntable 3 is fixed on big base plate 1, the stationary plane 31 of turntable 3 perpendicular to the upper surface of big base plate, fix by clamp assemblies On the stationary plane 31 of turntable 3 and by turntable 3 rotation, clamp assemblies is driven to include support base 7, the rear of 7 upper end of support base sets There is locating rack 5, the front end face of locating rack 5 contacts setting with the open end 61 of U-shaped workpiece to be clamped 60, is provided with 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 right Title is provided with clamping cylinder 4, and 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, symmetrically Minimum range between the clamping plate 41 of setting is consistent with the width of U-shaped workpiece to be clamped 60, i.e., the minimum between clamping plate 41 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 is also Rotation hold-down cylinder 8 is 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 compression 81, under clamped condition, the lower surface of hold-down head 81 contacts setting, total reality with the upper surface of U-shaped workpiece to be clamped 60 Positioning of the U-shaped workpiece to be clamped 60 in up, down, left, right, before and after six direction is showed, it is ensured that firm position and positioning accurate Degree.

Preferably, as shown in figure 4, turntable 3 is provided with two stationary planes 31, each stationary plane 31 is arranged side by side and is all provided with above There are clamp assemblies, once shut down and two workpiece can be installed, while completing the processing of two workpiece, reduce the number of times shut down, lifted 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 perpendicular to 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 The contact with the second positioning boss 53 of face 61 is arranged, while the contact with inner side plane 62 of supporting-core 51 setting is completed, it is forward and backward After the completion of the positioning of lower three directions, start and rotate hold-down cylinder 8, hold-down head 81 rotates after rising and completes to U-shaped workpiece to be clamped The positioning of 60 upper ends, 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, after the completion of clamping, carry out the processing of internal cambered surface 65, plus U-shaped workpiece to be clamped 60 is removed after the completion of work, 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 is contacted with positioning convex and set Put, one end contacts setting with spacing preiection, then start positional cylinder 26, positioning head 261 and the end thereof contacts for clamping U-shaped workpiece 60 Arrange, 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 Rear ends 24 are compressed, so as to complete the processing in hole in rear ends 24, registration favorably lifts machining accuracy, it is whole to add Work process adopts machinery positioning, it is to avoid the error that artificial operation brings, it is ensured that repetitive positioning accuracy, improves part and adds The precision of work, 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 (6)

1.U shape workpiece face fixture for processing, it is characterised in that：Including turntable (3) and clamp assemblies, the turntable (3) is by big Base plate (1) is fixed on the workbench of extra bed, and the stationary plane (31) of the turntable (3) is perpendicular to the upper end of the big base plate (1) Face, the clamp assemblies are fixed on the stationary plane (31) of the turntable (3) and are driven by the turntable (3) and rotate, the folder Holding component includes support base (7), and the rear of support base (7) upper end is provided with locating rack (5), and front is provided with and pushes away cylinder (91), institute The left and right sides for stating support base (7) upper end is also arranged with clamping cylinder (4), and the front end of the clamping cylinder (4) is provided with clamping plate (41), the clamping plate (41) be located at the locating rack (5) and it is described push away between cylinder (91), the symmetrically arranged clamping plate (41) minimum range between is consistent with the width of U-shaped workpiece to be clamped, and the left and right sides of the upper end of the support base (7) also sets Have a rotation hold-down cylinder (8), rotation hold-down cylinder (8) be located at the clamping cylinder (4) and it is described push away between cylinder (91), the rotation The upper end of hold-down cylinder (8) is provided with hold-down head (81), under clamped condition, lower surface and the U-shaped work to be clamped of the hold-down head (81) The upper surface contact of part is arranged.

2. U-shaped workpiece face fixture for processing according to claim 1, it is characterised in that：The turntable (3) is provided with two Stationary plane (31), each stationary plane (31) are arranged side by side and are equipped with the clamp assemblies above.

3. U-shaped workpiece face fixture for processing according to claim 1, it is characterised in that：The clamp assemblies also include bottom Seat (6), the base (6) are fixed on the stationary plane (31) of the turntable (3), and the support base (7) is including the first fixed plate (71) and the second fixed plate (72), first fixed plate (71) and second fixed plate (72) are vertically arranged and form L-shaped Shape, on the base (6), second fixed plate (72) is perpendicular to the base (6) for the first fixed plate (71) solid lock And it is horizontally disposed, the locating rack (5) is located at the upper surface of second fixed plate (72), and the clamping cylinder (4) is installed in institute The left and right sides of locating rack (5) is stated, the upper end of second fixed plate (72) is vertical away from one end of first fixed plate (71) Installing plate (9) is provided with directly, the installing plate (9) is provided with and pushes away cylinder (91), what the force-output shaft axis for pushing away cylinder (91) was located Vertical plane is overlapped with the vertical median plane of U-shaped workpiece to be clamped setting.

4. U-shaped workpiece face fixture for processing according to claim 3, it is characterised in that：The locating rack (5) is including setting Front center supporting-core (51) and be symmetricly set on first positioning boss (52) of both sides, the front end of the supporting-core (51) It is more than first positioning boss (52) apart from first fixed plate (71) apart from the distance of first fixed plate (71) Distance, the width of the supporting-core (51) are consistent with the width of U-shaped workpiece openings to be clamped.

5. U-shaped workpiece face fixture for processing according to claim 4, it is characterised in that：First positioning boss (52) Front end be additionally provided with the second positioning boss (53), second positioning boss (53) arrange into corner and with U-shaped work to be clamped The rear end face contact of part is arranged.

6. U-shaped workpiece face fixture for processing according to claim 3, it is characterised in that：Cylinder (91) force-output shaft of pushing away Front end is provided with cut somebody's hair (92), and cut somebody's hair (92) are coaxially disposed with the force-output shaft for pushing away cylinder (91), it is described cut somebody's hair (92) away from Described one end for pushing away cylinder (91) is cambered surface.