CN201333645Y

CN201333645Y - Telescopic supporting roller stand

Info

Publication number: CN201333645Y
Application number: CNU2009201427348U
Authority: CN
Inventors: 许一卫; 陈益
Original assignee: CHANGZHOU TENT HYDRAULIC MACHINERY Co Ltd
Current assignee: CHANGZHOU TENT HYDRAULIC MACHINERY Co Ltd
Priority date: 2009-01-13
Filing date: 2009-01-13
Publication date: 2009-10-28
Anticipated expiration: 2019-01-13

Abstract

The utility model discloses a telescopic supporting roller stand, which is used for supporting long-shaft workpieces with different specifications and diameters for grinding. The telescopic supporting roller stand comprises a base and a V-shaped stand for supporting the workpieces; the V-shaped stand is provided with a left sloping block and a right sloping block which are separated and arranged symmetrically; supporting rollers for supporting the workpieces are arranged on the inclined surfaces of the left sloping block and the right sloping block; an oil cylinder is arranged on the base, and the extending end thereof is fixed with the bottom part of the V-shaped stand; a limiting device for determining the lifting height of the V-shaped stand is arranged on the supporting roller stand; the retraction of the V-shaped stand is achieved through the up and down motion of the oil cylinder to keep away from a grinding head; and when the V-shaped stand is recovered, the limiting device can ensure that the V-shaped stand rises to a set height. The telescopic supporting roller stand not only can ensure the stable operation of the workpieces when the long-shaft workpieces are ground and processed, but also can automatically retract when the grinding head passes through, so as not to result in blockage, thereby improving the work efficiency and the processing quality.

Description

Telescopic roller frame

Technical field

The utility model relates to a kind of when long-axle workpieces is carried out grinding, is used for the telescopic roller frame of supporting workpiece.

Background technology

When overlength major diameter shaft-like workpiece is carried out grinding, for the running that guarantees workpiece steady, reduce the centrifugal force that workpiece produces because of rotation, improve crudy, generally all one roller frame is set with supporting workpiece, but traditional roller frame can not stretch automatically in the workpiece bottom, when grinding machine head by the time can cause obstruction, need often to adjust the position, thereby reduced operating efficiency, also influenced crudy.

The utility model content

The purpose of this utility model is: overcome the deficiencies in the prior art, a kind of telescopic roller frame is provided, it can guarantee workpiece running steadily when the grinding long-axle workpieces, and grinding machine head by the time can stretch automatically and can not cause obstruction grinding machine head.

The technical scheme that its purpose that realizes the utility model adopts is: a kind of telescopic roller frame, support when being used for the long-axle workpieces of grinding different size diameter, comprise base and the wishbone that is used for supporting workpiece, base is provided with oil cylinder, the external part of oil cylinder and wishbone bottom fix, and also are provided with the stopping means of determining the wishbone lifting height on the described roller frame.

Specifically, described wishbone comprises left skewback and the right skewback that base plate and split are provided with, has chute on the base plate, run through between left side skewback and the right skewback and be provided with screw mandrel, have between screw mandrel and left skewback and the right skewback and when screw mandrel rotates, make left skewback and right skewback make the structure that moves close or far away mutually, the horizontal synchronization on described chute of left skewback and right skewback is slided by rotary screw rod.

For guaranteeing the workpiece rotation flexibly, has the inclined-plane respectively on described left skewback and the right skewback, be symmetrical in the wishbone vertical centre on the inclined-plane and be provided with at least one pair of U-lag, the U-lag internal frame is provided with the support roller that is used for supporting workpiece, the material of support roller outer surface adopts engineering plastics, can hold up workpiece, not damage surface of the work again.

Furtherly, in order to limit the lifting height of wishbone, it is spacing accurate to guarantee, easy to adjust, described stopping means comprises pedestal, limiting plate and lead, pedestal is fixed on the base, limiting plate is fixed on the pedestal upper end, rotatable also can the qualification in lead upper end is arranged on the base plate, the lead lower end has screw thread and passes limiting plate and puts in the pedestal, is provided with guide rod between limiting plate and the pedestal bottom, and activity is with adjusting nut on the guide rod, adjusting nut is threaded with lead, regulates lead and can guarantee that workpiece centre is consistent with the pivot height of process equipment and limit this height when the answer of roller frame withdrawal back.

For convenient by roller frame time monitoring at grinding machine head, on wishbone, also be provided be used to monitor grinding machine head near or away from the signal monitoring plate of roller frame.

The beneficial effects of the utility model are: the utility model can overcome the winding degree that long-axle workpieces produces when grinding, the center line and the process equipment pivot that guarantee workpiece remain in the rational center of rotation scope, make the workpiece running steadily, realize accessible pass through of grinding machine head when grinding, ensure the Grinding Machining Quality of workpiece effectively, improved operating efficiency.

Description of drawings

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

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

Fig. 2 is the structure for amplifying schematic diagram of part 4 stopping means among Fig. 1.

1. base 2.V shape framves, 21. base plates, 211. chutes, 22. left skewback 23. right skewback 24. screw mandrels 25. feed screw nut 26.U shape grooves 27. support rollers 3. oil cylinders 4. stopping means 41. pedestals 42. limiting plates 43. leads 44. pressing plates 45. guide rods 46. adjusting nuts 47. copper sheathings 5. monitor signal plates among the figure

The specific embodiment

A kind of telescopic roller frame as shown in Figure 1 comprises base 1 and is used for the wishbone 2 of supporting workpiece and the stopping means 4 of definite wishbone 2 lifting heights that base 1 is provided with oil cylinder 3, and the external part of oil cylinder 3 and wishbone 2 bottoms fix.

Specifically, described wishbone 2 comprises base plate 21 and symmetrically arranged left skewback 22 of split and right skewback 23, the external part of oil cylinder 3 is fixed in the center of base plate 21, have chute 211 on the base plate 21, between left skewback 22 and right skewback 23, run through and be provided with a rhizoid bar 24, have between screw mandrel 24 and left skewback 22 and the right skewback 23 and when screw mandrel 24 rotates, make left skewback 22 and right skewback 23 make the structure that moves close or far away mutually, by rotary screw rod 24 horizontal synchronization on the chute on the base plate 21 211 of left skewback 22 and right skewback 23 is slided, to regulate the distance between left skewback 22 and the right skewback 23, regulate for convenience, in the present embodiment, adopted the mode of screw mandrel 24 and feed screw nut's 25 transmissions, feed screw nut 25 is separately fixed at the lateral surface of left skewback 22 and right skewback 23, screw mandrel 24 is threaded with feed screw nut 25, screw mandrel 24 two ends have right-handed thread and left hand thread respectively, screw mandrel 24 two ends heads are processed into square toes shape and expose outside the lateral surface of left skewback 22 and right skewback 23 respectively, to make things convenient for rotary screw 24, when rotary screw 24, by the right-and-left threaded effect in screw mandrel 24 two ends, can realize the synchronous slip on base plate 21 of left skewback 22 and right skewback 23.Certainly; also can on left skewback 22 and right skewback 23, process left-handed and right-handed thread respectively; realize the synchronous slip on base plate 21 of left skewback 22 and right skewback 23 by cooperating with screw mandrel 24; structure like that is slided on base plate 21 synchronously as long as can realize left skewback 22 and right skewback 23; do close or mutually far away moving, all in protection domain of the present utility model.

Because workpiece is in rotation status when carrying out grinding, for guaranteeing the workpiece rotation flexibly, on left skewback 22 and right skewback 23, has the inclined-plane respectively, be symmetrical in wishbone 2 vertical centres on the inclined-plane and be provided with three pairs of U-lags 26, U-lag 26 internal frames are provided with the support roller 27 that is used for supporting workpiece, the material of support roller 27 outer surfaces adopts engineering plastics, can hold up workpiece, does not damage surface of the work again.

For guaranteeing at grinding machine head by behind the roller frame, the height that wishbone 2 can accurately be returned to setting supports workpiece, as shown in Figure 2, described stopping means 4 is positioned at oil cylinder 3 both sides and oil cylinder 3 is provided with in the same way, it comprises pedestal 41, limiting plate 42 and lead 43, pedestal 41 is fixed on the base 1, limiting plate 42 is fixed on pedestal 41 upper ends, lead 43 upper ends are arranged in the cavity of base plate 21 lower planes rotationally, lead 43 lower ends have screw thread and pass limiting plate 42 and put in the pedestal 41, be provided with guide rod 45 between limiting plate 42 and pedestal 41 bottoms, activity is with adjusting nut 46 on the guide rod 45, adjusting nut 46 is threaded with lead 43, regulate lead 43 and can guarantee that workpiece centre is consistent with the pivot height of process equipment, after the workpiece height regulates, with pressing plate 44 lead 43 upper ends are fixed in the base plate 21 lower plane cavitys, in addition for guaranteeing that lead 43 slides flexibly when passing through limiting plate 42, between lead 43 and limiting plate 42, a copper sheathing 47 can be set, by this stopping means 4, by behind the roller frame, the height that wishbone 2 can accurately be returned to setting supports workpiece at grinding machine head.For convenient by roller frame time monitoring at grinding machine head, on wishbone 2, also be provided be used to monitor grinding machine head near or away from the signal monitoring plate 5 of roller frame, in the present embodiment this signal monitoring plate 5 is fixed in right skewback 23 sides.

During use, roller frame is placed on the lathe bed of grinding machine, earlier according to the preliminary centre-to-centre spacing of determining between two support rollers 27 of diameter of work size, utilize the wrench square head of lead 43 upper ends then, rotary steering post 43, by the up and down screw of lead 43 with adjusting nut 46, regulating the workpiece pivot makes its pivot height with process equipment consistent, at this moment, the last plane of adjusting nut 46 contacts with the lower plane of limiting plate 42, and adjusting finishes is fixed in lead 43 upper ends in the base plate 21 lower plane cavitys with pressing plate 44.During work, when grinding machine head is about to by roller frame, monitor signal plate 5 is sent to apparatus control system with the signal that monitors, control system is sent instruction, oil cylinder 3 retractions, driving wishbone 2 descends, this moment, adjusting nut 46 descended simultaneously with lead 43, away from limiting plate 42, after the wait grinding machine head passes through, control system is sent instruction once more, oil cylinder 3 jack-up, wishbone 2 rises, when plane on the adjusting nut 46 contacts once more with the lower plane of limiting plate 42, illustrate promptly that wishbone 2 got back to the height of original setting, thereby guaranteed the consistent of workpiece pivot and process equipment pivot height.

Claims

1. telescopic roller frame, support when being used for the long-axle workpieces of grinding different size diameter, it is characterized in that: comprise base (1) and be used for the wishbone (2) of supporting workpiece, base (1) is provided with oil cylinder (3), the external part of oil cylinder (3) and wishbone (2) bottom fix, and also are provided with the stopping means (4) of definite wishbone (2) lifting height on the described roller frame.

2. telescopic roller frame according to claim 1, it is characterized in that: described wishbone (2) comprises left skewback (22) and the right skewback (23) that base plate (21) and split are provided with, has chute (211) on the base plate (21), run through between left side skewback (22) and the right skewback (23) and be provided with screw mandrel (24), have between screw mandrel (24) and left skewback (22) and the right skewback (23) and when screw mandrel (24) rotates, make left skewback (22) and right skewback (23) make the structure that moves close or far away mutually, can make left skewback (22) and right skewback (23) on described chute (211), do the horizontal synchronization slip by rotary screw rod (24).

3. telescopic roller frame according to claim 2, it is characterized in that: have the inclined-plane respectively on described left skewback (22) and the right skewback (23), be symmetrical in wishbone (2) vertical centre on the inclined-plane and be provided with at least one pair of U-lag (26), U-lag (26) internal frame is provided with the support roller (27) that is used for supporting workpiece.

4. telescopic roller frame according to claim 3 is characterized in that: the material of described support roller (27) outer surface is engineering plastics.

5. telescopic roller frame according to claim 1, it is characterized in that: described stopping means (4) comprises pedestal (41), limiting plate (42) and lead (43), pedestal (41) is fixed on the base (1), limiting plate (42) is fixed on pedestal (41) upper end, rotatable also can the qualification in lead (43) upper end is arranged on the base plate (21), lead (43) lower end has screw thread and passes limiting plate (42) and puts in the pedestal (41), be provided with guide rod (45) between limiting plate (42) and pedestal (41) bottom, guide rod (45) is gone up activity and is with adjusting nut (46), and adjusting nut (46) is threaded with lead (43).

6. telescopic roller frame according to claim 1 is characterized in that: described wishbone be provided be used to monitor grinding machine head near or away from the signal monitoring plate (5) of roller frame.