CN218964050U

CN218964050U - Adjustable center assembly in crankshaft machining device

Info

Publication number: CN218964050U
Application number: CN202122572568.9U
Authority: CN
Inventors: 雒应学
Original assignee: Wuhu Deshan Cnc Technology Co ltd
Current assignee: Wuhu Deshan Cnc Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2023-05-05
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses an adjustable center assembly in a crankshaft machining device, which relates to the technical field of crankshaft machining and comprises a mounting plate, a heightening strip, a guide rail, a sliding plate, a hydraulic cylinder, a fixing sheet, a connecting sheet, a bearing seat and a center, wherein the heightening strip is provided with a pair of heightening strips and is symmetrically installed on the upper side of the mounting plate front and back, the guide rail is provided with a pair of heightening strips which are correspondingly installed on two sides, sliding blocks are slidably installed on the guide rail, the sliding plate is horizontally installed on the upper sides of the sliding blocks on two sides, the hydraulic cylinder is horizontally arranged towards the left and is positioned between the mounting plate and the sliding plate, the tail end of a cylinder barrel of the hydraulic cylinder is fixed on the right side of the mounting plate through the fixing sheet, the tail end of a piston rod of the hydraulic cylinder is connected with the lower side of the sliding plate through the connecting sheet, the bearing seat is vertically installed on a protruding part of the sliding plate, and the center is horizontally arranged towards the left and is rotationally connected onto the bearing seat through a pair of precision bearings. In conclusion, the adjustable fixing clamp assembly has the characteristics of ingenious design, reasonable structure and convenience in adjustment.

Description

Adjustable center assembly in crankshaft machining device

Technical Field

The utility model relates to the technical field of crankshaft machining, in particular to an adjustable center assembly in a crankshaft machining device.

Background

The main rotary parts of the crankshaft and engine consist of main journal, connecting rod neck, crank arm, balance weight, front shaft end and back shaft end. The crankshaft is in an integral type and a combined type, wherein the integral type crankshaft is required to process two parts of a main journal and a connecting rod journal simultaneously during processing, because the existing center cannot be propped against the end part of the connecting rod journal under the condition of keeping coaxial distribution with the connecting rod journal, so that the center can only keep coaxial distribution with the main journal, the processed main journal result can be ensured, but the connecting rod journal during processing rotates around the center, namely, the connecting rod journal is processed while revolving, and the processed connecting rod journal result is difficult to ensure.

Disclosure of Invention

The present utility model is directed to an adjustable center assembly for a crankshaft machining apparatus that overcomes the above-mentioned drawbacks of the prior art.

The utility model provides a top subassembly with adjustable among crank processing device, includes mounting panel, rim strip, guided way, sliding plate, pneumatic cylinder, stationary blade, connection piece, bearing frame, precision bearing and top, mounting panel horizontal installation is on the lathe tailstock, the rim strip is equipped with a pair of and front and back symmetry installs in the upside of mounting panel, the guided way is equipped with a pair of and corresponds the upside of installing the rim strip on both sides, equal slidable mounting has the sliding block on the guided way, the sliding plate horizontal installation is in the upside of the sliding block on both sides, the pneumatic cylinder level sets up towards left and is located between mounting panel and the sliding plate, the cylinder tail end of pneumatic cylinder is fixed in the right side of mounting panel through the stationary blade, the piston rod end of pneumatic cylinder passes through the connection piece and connects in the downside of sliding plate, the sliding plate is "protruding" style of calligraphy structure and the protruding portion lean on left setting, the bearing frame is perpendicular to the protruding portion of sliding plate, the top level sets up towards left and rotates through a pair of precision bearing and connects on the bearing frame.

Preferably, the guide rail is a dovetail guide rail.

Preferably, the front and rear sides of the sliding plate are symmetrically connected with hand-screwed screws.

Compared with the prior art, the adjustable center assembly in the crankshaft machining device has the following advantages:

(1) When the main shaft neck part of the crankshaft needs to be processed, the piston rod of the hydraulic cylinder is contracted to a proper position to drive the sliding plate to be positioned at the middle position of the mounting plate, then the hand screw is screwed down to limit the relative movement of the sliding plate, and then the lathe tailstock is moved to push the tip to the front end shaft of the crankshaft, so that the main shaft neck part of the crankshaft can be processed.

(2) When the connecting rod neck of the crankshaft needs to be machined, a piston rod of the hydraulic cylinder stretches to a proper position to drive the sliding plate to be positioned at the left side of the mounting plate, then the hand screw is screwed down to limit the relative movement of the sliding plate, the lathe tailstock is moved to push the tip to the connecting rod neck of the crankshaft, and then the connecting rod neck of the crankshaft can be machined.

In conclusion, the adjustable fixed clamp assembly in the application has the characteristics of ingenious design, reasonable structure and convenient adjustment, and the main journal result and the connecting rod neck result of the processed crankshaft can be ensured.

Drawings

Fig. 1 and 2 are three-dimensional schematic structural views of the present utility model.

Fig. 3 is a schematic structural view of the present utility model.

Wherein:

1-a mounting plate; 2-heightening strips; 3-guide rails; 4-sliding blocks; 5-a sliding plate; 6-a hydraulic cylinder; 7-fixing sheets; 8-connecting sheets; 9, screwing the screw by hand; 10-bearing seats; 11-precision bearings; 12-center.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1 to 3, an adjustable center assembly in a crankshaft machining device comprises a mounting plate 1, a lifting strip 2, a guide rail 3, a sliding plate 5, a hydraulic cylinder 6, a fixing plate 7, a connecting sheet 8, a bearing seat 10, a precision bearing 11 and a center 12, wherein the mounting plate 1 is horizontally mounted on a tailstock of a lathe, the lifting strip 2 is provided with a pair of lifting strips which are symmetrically mounted on the upper side of the mounting plate 1, the guide rail 3 is provided with a pair of lifting strips which are correspondingly mounted on two sides, the guide rail 3 is provided with sliding blocks 4 in a sliding manner, the sliding plate 5 is horizontally mounted on the upper sides of the sliding blocks 4 on two sides, the hydraulic cylinder 6 is horizontally arranged towards the left and is positioned between the mounting plate 1 and the sliding plate 5, the tail end of a cylinder barrel of the hydraulic cylinder 6 is fixed on the right side of the mounting plate 1 through the fixing sheet 7, the tail end of a piston rod of the hydraulic cylinder 6 is connected on the lower side of the sliding plate 5 through the center 8, the sliding plate 5 is in a convex structure and a protruding part is arranged on the left side, the bearing seat 10 is vertically mounted on the sliding plate 5, the sliding plate 4 is horizontally arranged on the upper side of the connecting sheet 11 through the connecting sheet 11, and the sliding plate is horizontally arranged towards the left side of the precision bearing seat 11.

In this embodiment, the guide rail 3 is a dovetail-shaped guide rail. The dovetail-shaped guide rail has the advantages of good guidance quality, strong loading force and anti-overturning moment, and is very suitable for the design.

In this embodiment, the front and rear sides of the sliding plate 5 are symmetrically connected with hand screws 9. The relative sliding between the slide plate 5 and the guide rail 3 is further restricted by tightening the hand screw 9 downwards.

The adjustable center assembly in the crankshaft machining device is in practical application:

(1) When the main shaft neck part of the crankshaft needs to be machined, the piston rod of the hydraulic cylinder 6 is contracted to a proper position, the sliding plate 5 is driven to be positioned in the middle of the mounting plate 1, the hand screw 9 is screwed down to limit the relative movement of the sliding plate 5, the lathe tailstock is moved to press the center 12 to the front end shaft of the crankshaft, and then the main shaft neck part of the crankshaft can be machined.

(2) When the connecting rod neck of the crankshaft needs to be machined, the piston rod of the hydraulic cylinder 6 stretches to a proper position to drive the sliding plate 5 to be positioned at the left side of the mounting plate 1, then the hand screw 9 is screwed down to limit the relative movement of the sliding plate 5, then the lathe tailstock is moved to press the center 12 to the connecting rod neck of the crankshaft, and then the connecting rod neck of the crankshaft can be machined.

Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.

Claims

1. An adjustable center subassembly in bent axle processingequipment, its characterized in that: the device comprises a mounting plate (1), a heightening strip (2), a guide rail (3), a sliding plate (5), a hydraulic cylinder (6), a fixing plate (7), a connecting sheet (8), a bearing seat (10), a precision bearing (11) and a center (12), wherein the mounting plate (1) is horizontally arranged on a tail frame of a lathe, the heightening strip (2) is provided with a pair of upper sides which are symmetrically arranged on the mounting plate (1) front and back, the guide rail (3) is provided with a pair of upper sides which are correspondingly arranged on the heightening strips (2) on two sides, the guide rail (3) is provided with sliding blocks (4) in a sliding manner, the sliding plate (5) is horizontally arranged on the upper sides of the sliding blocks (4) on two sides, the hydraulic cylinder (6) is horizontally arranged towards the left and is positioned between the mounting plate (1) and the sliding plate (5), the tail end of a cylinder barrel of the hydraulic cylinder (6) is fixed on the right side of the mounting plate (1) through the fixing plate (7), the tail end of the piston rod of the hydraulic cylinder (6) is connected with the sliding plate (5) through the connecting sheet (8), the sliding plate (5) is provided with a protruding part (10) which is arranged on the vertical protruding part, the center (12) is horizontally arranged towards the left and is rotationally connected to the bearing seat (10) through a pair of precision bearings (11).

2. An adjustable center assembly in a crankshaft machining apparatus according to claim 1, wherein: the guide rail (3) is a dovetail-shaped guide rail.

3. An adjustable center assembly in a crankshaft machining apparatus according to claim 1, wherein: the front side and the rear side of the sliding plate (5) are symmetrically connected with hand screws (9).