Novel vertical lathe cross beam grading positioning device

Abstract

The invention discloses a novel vertical lathe cross beam grading positioning device which comprises a lead screw, a positioning plate, an inductive switch, an inductive block, a screw b, an L-shaped positioning key, a bearing plate and an oil cylinder, the lead screw is installed in a cross beam, and the positioning plate is fixed at the position of the lead screw and below the cross beam through a screw a; the lead screw and a nut on the lead screw penetrate through the positioning plate, and the outer circle of the nut and a hole of the positioning plate are matched and installed in a floating mode. An inductive switch is arranged on one side of the positioning plate; an inductive block is arranged on one side below the nut; the positioning plate is in threaded connection with a screw b; a vertically-arranged bearing plate is fixed to the portion, on one side of the lead screw, of the stand column and located below the cross beam. An oil cylinder in the horizontal direction is fixedly installed on the side, away from the lead screw, of the bearing plate and below the cross beam, and a piston in the oil cylinder faces the bearing plate; an L-shaped positioning key with a downward right angle is arranged on the side, away from the bearing plate, of the lead screw and below the positioning plate. Through nut floating of the vertical lathe cross beam lifting lead screw, accurate horizontal positioning of the vertical lathe cross beam is achieved.

Description

Technical Field

[0001] The invention relates to a novel vertical lathe crossbeam grading positioning device, belonging to the technical field of machinery. Background Art

[0002] At present, the existing vertical lathe crossbeams with graded positioning all adopt a lifting screw floating structure. When the mechanical transmission structure is complex and limited or the crossbeam adopts a W-axis, the premise of screw floating cannot be achieved, so that the horizontal positioning of the vertical lathe crossbeam is not accurate enough. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a novel vertical lathe crossbeam grading positioning device, which realizes precise horizontal positioning of the vertical lathe crossbeam by floating the nut of the vertical lathe crossbeam lifting screw.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a new type of vertical lathe beam grading positioning device, including a lead screw, a positioning plate, an induction switch, an induction block, a screw b, an L-shaped positioning key, a bearing plate and an oil cylinder, the lead screw is installed in the beam in a vertical direction, and a positioning plate is fixed below the beam at the position of the lead screw by a screw a; the lead screw and the nut on the lead screw pass through the positioning plate, and the outer circle of the nut of the lead screw cooperates with the hole of the positioning plate for floating installation; an induction switch is installed on one side of the positioning plate, and an induction block is installed on the side below the nut of the lead screw, and the induction block and the induction switch are located on the same side; a vertical screw b is provided on the positioning plate, the screw b is located below the positioning plate, the screw b cooperates with the lower end of the nut passing through the lead screw, and the end of the screw b is threadedly connected to the positioning plate.

[0005] On one side of the screw, a vertically arranged bearing plate is fixed on the column on which the crossbeam is installed. The bearing plate is located below the crossbeam, and the bearing plate and the screw are spaced apart. On the side of the bearing plate away from the screw, a horizontal oil cylinder is fixedly installed below the crossbeam, and the piston in the oil cylinder faces the bearing plate.

[0006] An L-shaped positioning key facing downward at a right angle is provided below the positioning plate on a side of the lead screw away from the bearing plate.

[0007] Furthermore, the plate body of the positioning key in the horizontal direction is fixedly connected to the positioning plate, the vertical plate of the positioning key is close to the lower end of the nut of the screw, and the vertical plate of the positioning key can be fixed to the keyway at the lower end of the nut of the screw.

[0008] The beneficial effects of the present invention are as follows: the present invention realizes precise horizontal positioning of the vertical lathe crossbeam through the floating nut of the vertical lathe crossbeam lifting screw, the crossbeam precision is stable and reliable, and the retention is high, which solves the lifting and precise positioning problems of the vertical lathe crossbeam with graded positioning when the screw floating structure cannot be adopted. When the mechanical transmission structure is complex and limited or the crossbeam adopts a W-axis, the vertical lathe crossbeam can be precisely positioned horizontally by floating the nut of the vertical lathe crossbeam lifting screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Figure 2 yes Figure 1 Side view of.

[0012] Numbers in the figure: 1. Screw, 2. Positioning plate, 3. Induction switch, 4. Screw a, 5. Induction block, 6. Screw b, 7. Positioning key, 8. Loading plate, 9. Cylinder, 10. Piston, 11. Column, 12. Beam, 13. Position A, 14. Position B. DETAILED DESCRIPTION

[0013] like Figure 1 As shown in FIG. 2, a novel vertical lathe beam grading positioning device comprises a lead screw 1, a positioning plate 2, an induction switch 3, an induction block 5, a screw b6, an L-shaped positioning key 7, a bearing plate 8 and an oil cylinder 9, wherein the lead screw 1 is vertically mounted inside the beam 12, and at the position of the lead screw 1, a positioning plate 2 is fixed below the beam 12 by a screw a4; the lead screw 1 and the nut on the lead screw 1 pass through the positioning plate 2, and the outer circle of the nut of the lead screw 1 cooperates with the hole of the positioning plate 2 for floating installation; a sensing switch 3 is installed on one side of the positioning plate 2, and a sensing block 5 is installed on the side below the nut of the lead screw 1, and the sensing block 5 and the sensing switch 3 are located on the same side; a vertical screw b6 is provided on the positioning plate 2, and the screw b6 is located below the positioning plate 2, and the screw b6 cooperates to pass through the lower end of the nut of the lead screw 1, and the end of the screw b6 is threadedly connected to the positioning plate 2.

[0014] On one side of the screw 1, a vertically arranged bearing plate 8 is fixed on the column 11 on which the cross beam 12 is installed. The bearing plate 8 is located below the cross beam 12, and the bearing plate 8 is spaced apart from the screw 1. On the side of the bearing plate 8 away from the screw 1, a horizontal cylinder 9 is fixedly installed below the cross beam 12, and the piston 10 in the cylinder 9 faces the bearing plate 8.

[0015] On the side of the screw 1 away from the supporting plate 8, an L-shaped positioning key 7 facing downward at a right angle is provided below the positioning plate 2; the horizontal plate body of the positioning key 7 is fixedly connected to the positioning plate 2, and the vertical plate of the positioning key 7 is close to the lower end of the nut of the screw 1, and the vertical plate of the positioning key 7 can be fixed to the keyway at the lower end of the nut of the screw 1.

[0016] The horizontal precise positioning of the cross beam 12 on the column 11 is achieved by the oil cylinder 10, the piston 10 and the bearing plate 8 installed at the lower end of the cross beam 12; when the cross beam 12 needs to be raised or lowered, the lead screw 1 is first rotated, and the positioning key 7 is fixed to the keyway of the nut end of the lead screw 1 to prevent the nut from rotating in the circumferential direction, so as to achieve the axial movement of the nut of the lead screw 1 and move from the B position 14 to the A position 13. At this time, the nut and the end face of the positioning plate 2 are in contact with each other, and the induction block 5 triggers the induction switch 3 to generate an electrical signal, and the lead screw 1 continues to rotate in the same direction. The lead screw 1 drags the cross beam 12 upward under the action of the self-weight of the cross beam 12, and the piston 10 and The bearing surface of the bearing plate 8 is detached, and the piston 10 is retracted through the cylinder 9. After performing the above action, the crossbeam 12 can be raised or lowered at will; the above action is the opposite, that is, the crossbeam 12 falls accurately on the bearing plate 8 of the column 11, so that the lifting and lowering screw 1 is not affected by the gravity of the crossbeam 12. The horizontal accuracy of the crossbeam 12 is guaranteed by the bearing plate 8. The accuracy of the crossbeam 12 is stable and reliable, with high retention, and it also avoids the situation where the screw 1 is both load-bearing and force-bearing; the screw b6 is fixed on the positioning plate 2, which plays a role of limiting. When the nut is in position A13 and position B14, the screw b6 does not contact the screw 1, so as to prevent the screw 1 and the positioning plate 2 from falling off and causing danger.

Claims

1. A new type of vertical lathe beam grading positioning device, characterized in that: The invention comprises a lead screw (1), a positioning plate (2), an inductive switch (3), an inductive block (5), a screw b (6), an L-shaped positioning key (7), a bearing plate (8) and an oil cylinder (9), wherein the lead screw (1) is vertically mounted inside a cross beam (12), and a positioning plate (2) is fixed below the cross beam (12) at the position of the lead screw (1) by means of a screw a (4); the lead screw (1) and a nut on the lead screw (1) pass through the positioning plate (2), and the outer circle of the nut of the lead screw (1) cooperates with a hole of the positioning plate (2) for floating installation; the inductive switch (3) is mounted on one side of the positioning plate (2), and an inductive block (5) is mounted on one side below the nut of the lead screw (1), and the inductive block (5) and the inductive switch (3) are located on the same side; a screw b (6) in a vertical direction is arranged on the positioning plate (2), and the screw b (6) is located below the positioning plate (2), and the screw b (6) cooperates to pass through the lower end of the nut of the lead screw (1), and the end of the screw b (6) is threadedly connected to the positioning plate (2); On one side of the lead screw (1), a vertically arranged bearing plate (8) is fixed on a column (11) on which a cross beam (12) is mounted, the bearing plate (8) is located below the cross beam (12), and the bearing plate (8) and the lead screw (1) are arranged at a distance; on the side of the bearing plate (8) away from the lead screw (1), a horizontal oil cylinder (9) is fixedly mounted below the cross beam (12), and a piston (10) in the oil cylinder (9) faces the bearing plate (8); on the side of the lead screw (1) away from the bearing plate (8), an L-shaped positioning key (7) is provided below the positioning plate (2) at a right angle downward.

2. According to claim 1, a new type of vertical lathe beam grading positioning device is characterized in that: The plate body of the positioning key (7) in the horizontal direction is fixedly connected to the positioning plate (2), the vertical plate of the positioning key (7) is close to the lower end of the nut of the lead screw (1), and the vertical plate of the positioning key (7) can be fixed to the keyway at the lower end of the nut of the lead screw (1).

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