CN201082474Y - Heavy bearing bed head structure with eccentric fixture - Google Patents
Heavy bearing bed head structure with eccentric fixture Download PDFInfo
- Publication number
- CN201082474Y CN201082474Y CNU2007201735570U CN200720173557U CN201082474Y CN 201082474 Y CN201082474 Y CN 201082474Y CN U2007201735570 U CNU2007201735570 U CN U2007201735570U CN 200720173557 U CN200720173557 U CN 200720173557U CN 201082474 Y CN201082474 Y CN 201082474Y
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- China
- Prior art keywords
- head
- main axle
- bed
- machine head
- eccentric fixture
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- Expired - Lifetime
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Abstract
The utility model discloses a large load bearing machine head structure with an eccentric clamp. The structure comprises a selective headstock, a machine head main shaft structure, an eccentric clamp, and a clamping mechanism, wherein the machine head main shaft structure is arranged in the selective headstock, one end of the machine head main shaft structure extends out of the selective headstock, the machine head main shaft structure is connected with the eccentric clamp, the clamping mechanism is arranged on the eccentric clamp, the machine head main shaft structure is composed of double-row short cylindrical tapered bore bearings and angular contact grouped bearings, the double-row short cylindrical tapered bore bearings are arranged at the front end of the machine head main shaft structure, and the angular contact grouped bearings are arranged at the rear end thereof; in the large load bearing machine head structure, a gripping jaw cylinder is positioned at the front end of the machine head main shaft structure through an oil distributing jacket to control the clamping and the releasing of the eccentric clamp; aiming at high accuracy requirements by the user, the large load bearing machine head structure ensures the requirements on the eccentric distance and the parallelism of the processed parts through the adjustment to a bottom adjusting spacer of the eccentric clamp, and ensures the cylindricity requirements on the work piece for the adjustment to a side adjusting spacer.
Description
Technical field
The utility model relates to the metal cutting processing technique field, particularly relates to a kind of precision, high-precision, special-purpose equipment for grinding efficiently, relates in particular to a kind of processing and positioner.
Background technology
For adapting to the demand of the new industrial structure, the particularly rapid expansion of air conditioner refrigerating industry now improves constantly the requirement of corresponding work machine tool, and still, the lathe of present processing eccentric crankshaft is generally universal machine tools, and its rigidity is lower, low precision; Because there is not fixing eccentric fixture to make the installation of workpiece can only rely on manually, its machining accuracy and efficient are lower.
The utility model content
The purpose of this utility model is to provide a kind of rigidity strong, the precision height, and the efficient height can be processed a kind of large-load bearing bed head structure that eccentric fixture is housed of multiple eccentric crankshaft by adjusting local part.
In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of large-load bearing bed head structure that eccentric fixture is housed, comprise headstock, head of a bed main axle structure, eccentric fixture and clamping device, described head of a bed main axle structure is arranged in the headstock, one end of described head of a bed main axle structure stretches out headstock, head of a bed main axle structure connects eccentric fixture, eccentric fixture is provided with clamping device, described head of a bed main axle structure by biserial short cylindrical tapered bore bearing and angular contact in groups bearing form, the front end of head of a bed main axle structure is provided with biserial short cylindrical tapered bore bearing, and the rear end of described head of a bed main axle structure is provided with angular contact bearing in groups.
Described clamping device comprises clamping cylinder, crank, V-shaped groove and the clamping frame of fixation workpiece, clamping frame one end is connected with head of a bed main axle structure, the clamping frame is provided with clamping cylinder, the clamping cylinder connecting crank, the other end of crank is corresponding with V-shaped groove, and V-shaped groove is positioned at the top of clamping cylinder.
Eccentric fixture is provided with bottom surface adjusting pad and side adjusting pad.
Described bed head structure also comprises joins oil jacket, and the middle part of described head of a bed main axle structure is provided with joins oil jacket, and principal pressure oil is by joining oil jacket up to anchor clamps.
Described bed head structure also comprises the latch detent mechanism, and described latch detent mechanism is provided with taper pin-hole, positioning sleeve and cylinder.
Adopt the beneficial effect after the technique scheme to be: the bed head structure that eccentric fixture is housed of high accuracy of the present utility model, high rigidity, be by join oil jacket clamping cylinder is placed into the front end of head of a bed main axle structure with the clamping of control eccentric fixture, loosen; In addition, at the higher required precision of user,, the adjustment of side adjusting pad is guaranteed the post degree requirement of workpiece by the adjustment of eccentric fixture bottom surface adjusting pad being guaranteed the requirement of the eccentric throw and the depth of parallelism of processing parts.
Description of drawings
Fig. 1 is a kind of schematic diagram that the large-load bearing bed head structure of eccentric fixture is housed of the utility model;
Fig. 2 is the structure cutaway view of the utility model head of a bed main axle structure;
Fig. 3 is the structure cutaway view of the C-C direction of Fig. 1;
Fig. 4 is the structure cutaway view of latch detent mechanism of the present utility model.
Wherein, bearing, 6 clamping cylinders, 7 cranks, 8V shape groove, 9 clamping frames, 10 bottom surface adjusting pads, 11 side adjusting pads, 12 are joined oil jacket, 13 taper pin-holes, 14 positioning sleeves, 15 cylinders in groups for 1 headstock, 2 head of a bed main axle structures, 3 eccentric fixtures, 4 biserial short cylindrical tapered bore bearings, 5 angular contact.
The utility model is described in further detail below in conjunction with accompanying drawing.
The specific embodiment
As shown in Figure 1, a kind of large-load bearing bed head structure that eccentric fixture is housed of the present utility model, comprise headstock 1, head of a bed main axle structure 2, eccentric fixture 3 and clamping device, described head of a bed main axle structure 2 is arranged in the headstock 1, one end of described head of a bed main axle structure 2 stretches out headstock 1, head of a bed main axle structure 2 connects eccentric fixture 3, eccentric fixture 3 is provided with clamping device, described head of a bed main axle structure 2 by biserial short cylindrical tapered bore bearing 4 and angular contact in groups bearing 5 form, the front end of head of a bed main axle structure 2 is provided with biserial short cylindrical tapered bore bearing 4, and the rear end of described head of a bed main axle structure 2 is provided with angular contact bearing 5 in groups.
As shown in Figure 3, described clamping device comprises clamping cylinder 6, crank 7, V-shaped groove 8 and the clamping frame 9 of fixation workpiece, clamping frame 9 one ends are connected with head of a bed main axle structure 2, clamping frame 9 is provided with clamping cylinder 6, clamping cylinder 6 connecting cranks 7, the other end of crank 7 is corresponding with V-shaped groove 8, and V-shaped groove 8 is positioned at the top of clamping cylinder 6.
As shown in Figure 2, described bed head structure also comprises joins oil jacket 12, and the middle part of described head of a bed main axle structure 2 is provided with joins oil jacket 12, and principal pressure oil is by joining oil jacket 12 up to eccentric fixture 3, described structure not only can reduce the parts overall space, can also prevent that hydraulic pressure from leaking outside.
As shown in Figure 4, described bed head structure also comprises the latch detent mechanism, and described latch detent mechanism is provided with taper pin-hole 13, positioning sleeve 14 and cylinder 15.The accurate stop mechanism of described latch can guarantee the repetitive positioning accuracy that workpiece clamp is concrete; prevent that eccentric throw is wrong, during withdrawing, state is adjusted into low frequency and rotates in the course of work; speed slows down and stops until lathe, and pneumatic means acts on the V-shaped groove 8 maintenance levels that make by cylinder 15 at taper pin-hole 13.
As shown in Figure 2, preceding support adopts the short circle of biserial to lean on tapered bore bearing 4 (high accuracy), and bearing capacity is big, and by adjusting the axial location of bearing inner ring, main axle structure can realize not having the gap revolution, good rigidly, guarantees the main axle structure rotating accuracy; Suitably strengthen main axle structure diameter and span, the rigidity of integral bed header structure is strengthened; Angular contact bearing 5 is in groups selected at the main axle structure rear portion for use, can control the axial float of main axle structure very easily; Strengthen the power of head of a bed motor, can realize head of a bed heavy load starting; Join oil jacket 12 in the increase of main axle structure middle part, to realize the normal fuel injection of angling cylinder.
As shown in Figure 3, adjust bottom surface adjusting pad 10,, adjust side adjusting pad 11 to guarantee the post degree requirement of workpiece with eccentric throw and the workpiece off-centre operation and the concentrically ringed depth of parallelism of control eccentric fixture.By guaranteeing the machining accuracy of eccentric element to the adjustment of eccentric fixture bottom surface, circularity 0.002mm, post degree 0.002mm, eccentric throw A ± 0.006mm, the eccentric center of circle and benchmark center of circle depth of parallelism 0.005mm.
The fine finishining of eccentric crankshaft, inseparable with machine-tool, and the precision of machine-tool, performance are inseparable with precision, the performance of functional part, and as the special purpose machine tool of the type, the head of a bed main axle structure of lathe and special-purpose eccentric fixture are the cores of such lathe.In sum, the high accuracy main axle structure is inseparable with the workpiece eccentric fixture, and is indispensable, and good condition has been created in their processing that exists for eccentric element.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (5)
1. large-load bearing bed head structure that eccentric fixture is housed, comprise headstock (1), head of a bed main axle structure (2), eccentric fixture (3) and clamping device, described head of a bed main axle structure (2) is arranged in the headstock (1), one end of described head of a bed main axle structure (2) stretches out headstock (1), head of a bed main axle structure (2) connects eccentric fixture (3), eccentric fixture (3) is provided with clamping device, it is characterized in that: described head of a bed main axle structure (2) by biserial short cylindrical tapered bore bearing (4) and angular contact in groups bearing (5) form, the front end of head of a bed main axle structure (2) is provided with biserial short cylindrical tapered bore bearing (4), and the rear end of described head of a bed main axle structure (2) is provided with angular contact bearing (5) in groups.
2. a kind of large-load bearing bed head structure that eccentric fixture is housed according to claim 1, it is characterized in that: described clamping device comprises clamping cylinder (6), crank (7), V-shaped groove (8) and the clamping frame (9) of fixation workpiece, clamping frame (9) one ends are connected with head of a bed main axle structure (2), clamping frame (9) is provided with clamping cylinder (6), clamping cylinder (6) connecting crank (7), the other end of crank (7) is corresponding with V-shaped groove (8), and V-shaped groove (8) is positioned at the top of clamping cylinder (6).
3. a kind of large-load bearing bed head structure that eccentric fixture is housed according to claim 1 is characterized in that: eccentric fixture (3) is provided with bottom surface adjusting pad (10) and side adjusting pad (11).
4. a kind of large-load bearing bed head structure that eccentric fixture is housed according to claim 1, it is characterized in that: described bed head structure also comprises joins oil jacket (12), the middle part of described head of a bed main axle structure (2) is provided with joins oil jacket (12), and principal pressure oil is by joining oil jacket (12) up to anchor clamps (3).
5. a kind of large-load bearing bed head structure that eccentric fixture is housed according to claim 1, it is characterized in that: described bed head structure also comprises the latch detent mechanism, described latch detent mechanism is provided with taper pin-hole (13), positioning sleeve (14) and cylinder (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201735570U CN201082474Y (en) | 2007-10-09 | 2007-10-09 | Heavy bearing bed head structure with eccentric fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201735570U CN201082474Y (en) | 2007-10-09 | 2007-10-09 | Heavy bearing bed head structure with eccentric fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201082474Y true CN201082474Y (en) | 2008-07-09 |
Family
ID=39624939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201735570U Expired - Lifetime CN201082474Y (en) | 2007-10-09 | 2007-10-09 | Heavy bearing bed head structure with eccentric fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201082474Y (en) |
-
2007
- 2007-10-09 CN CNU2007201735570U patent/CN201082474Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080709 |