CN215788236U

CN215788236U - Clamping and positioning device for crankshaft machining

Info

Publication number: CN215788236U
Application number: CN202120156520.7U
Authority: CN
Inventors: 刘珂
Original assignee: Wuxi Gulute Precision Machinery Co ltd
Current assignee: Wuxi Gulute Precision Machinery Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2022-02-11
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a clamping and positioning device for crankshaft machining, which relates to the technical field of crankshaft clamping and positioning, aims at the problems that the existing clamping and positioning device for crankshaft machining mostly uses screws and bolts, has complicated clamping and positioning steps and unchanged axial length, and can only machine a type of crankshaft, and provides the following scheme. The crankshaft clamping device is novel in structure, realizes clamping and positioning of crankshafts with different lengths, is more convenient and efficient in the clamping and positioning process, reduces labor consumption and improves working efficiency.

Description

Clamping and positioning device for crankshaft machining

Technical Field

The utility model relates to the technical field of crankshaft clamping and positioning, in particular to a clamping and positioning device for crankshaft machining.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load.

Aiming at the problems that the existing clamping and positioning device for crankshaft machining mostly uses screws and bolts, the clamping and positioning steps are complicated, the axial length is unchanged, and only a crankshaft of one type can be machined, the clamping and positioning device for crankshaft machining is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clamping and positioning device for crankshaft machining, which solves the problems that the existing clamping and positioning device for crankshaft machining mostly uses screws and bolts, the clamping and positioning steps are complicated, the axial length is unchanged, and only one type of crankshaft can be machined.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a press from both sides tight positioner that crankshaft machining used, includes first support frame and second support frame, first support frame top fixed mounting has spacing post, the spacing groove has been seted up to spacing post inside, slidable mounting has the slip post in the spacing groove, centering clamping device is installed to slip post circumference lateral wall, second support frame middle part slidable mounting has the bracing piece that runs through the setting, bracing piece tip fixed mounting has the backup pad, bracing piece other end fixed mounting has the fixed block, the fixed block mid-mounting has hydraulic means, second support frame top fixed mounting has the spacing ring, spacing ring tip rotates and installs the annular frame, annular frame mid-mounting has stop device, transmission is installed to annular frame circumference lateral wall.

Preferably, centering clamping device includes slip post, right angle pipe, support column, limiting plate and grip block, the inside slidable mounting of spacing post has the slip post, slip post circumference lateral wall articulates there is the right angle pipe, the support column that is the symmetric distribution is installed to right angle pipe corner, right angle pipe upper end fixed mounting has the limiting plate, first screw hole has been seted up to the limiting plate, the limiting plate has the grip block through screw fixed mounting, the arc wall has been seted up to grip block one side.

Preferably, the hydraulic device comprises a hydraulic cylinder and a hydraulic rod, the hydraulic cylinder is fixedly mounted in the middle of the fixing block, the hydraulic rod is slidably mounted in the hydraulic cylinder, and the end part of the hydraulic rod is fixedly connected with the second support frame.

Preferably, stop device includes fixed column, gag lever post, stop collar and round wheel, spacing ring tip fixed mounting has the fixed column, the fixed column articulates there is the gag lever post, the annular frame articulates there is the gag lever post, the gag lever post cup joints with the stop collar, the round wheel is installed in the rotation of gag lever post tip.

Preferably, the transmission device comprises a rotating block and a worm, the end part of the limiting ring is rotatably provided with the rotating block, the rotating block is sleeved with the worm, the circumferential side wall of the annular frame is fixedly provided with a fixing rod, the end part of the fixing rod is provided with a second threaded hole, and the worm is sleeved with the fixing rod.

The utility model has the beneficial effects that:

1. through the installation to hydraulic means, through changing the inside pressure of pneumatic cylinder, drive the second backup pad and remove, confirm the distance between two backup pads then, realized the tight location of clamp to different length bent axles.

2. Through the installation of centering clamping device, through the extrusion of axial to the slip post, accomplish the grip block centering and press from both sides tightly, press from both sides the convenient high efficiency of tight positioning process more.

3. Through the installation to stop device, the round wheel has radially realized spacingly to the bent axle, and the round wheel is connected with the tip roll of bent axle, has reduced the pivoted resistance of bent axle, has reduced the device wearing and tearing.

In conclusion, the clamping device is novel in structure, clamping and positioning of crankshafts with different lengths are achieved, the clamping and positioning process is more convenient and efficient, labor consumption is reduced, and working efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1 in accordance with the present invention;

FIG. 3 is a top view of the structure of the present invention;

FIG. 4 is a schematic view of a spacing device of the present invention;

fig. 5 is a schematic view of the centering and clamping device of the present invention.

Reference numbers in the figures: 1. a first support frame; 2. a sliding post; 3. a limiting column; 4. a right-angled tube; 5. a support pillar; 6. a limiting plate; 7. a clamping block; 8. a second support frame; 9. a support bar; 10. a support plate; 11. a fixed block; 12. a hydraulic cylinder; 13. a hydraulic lever; 14. a limiting ring; 15. an annular frame; 16. rotating the block; 17. a worm; 18. fixing a column; 19. a limiting rod; 20. a limiting sleeve; 21. a round wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a tight positioner that presss from both sides that bent axle processing was used, including first support frame 1 and second support frame 8, first support frame 1 top fixed mounting has spacing post 3, spacing groove has been seted up to spacing post 3 inside, slidable mounting has slip post 2 in the spacing groove, centering clamping device is installed to 2 circumference lateral walls of slip post, 8 middle part slidable mounting of second support frame has the bracing piece 9 that runs through the setting, bracing piece 9 tip fixed mounting has backup pad 10, bracing piece 9 other end fixed mounting has fixed

block

11, 11 mid-mounting of fixed block has hydraulic means, 8 top fixed mounting of second support frame has

spacing ring

14, 14 tip rotations of spacing ring are installed

annular frame

15, 15 mid-mounting of annular frame has stop device, transmission is installed to 15 circumference lateral walls of annular frame.

Centering clamping device includes slip post 2, right angle pipe 4, support column 5, limiting plate 6 and

grip block

7, and 3 inside slidable mounting of spacing post have

slip post

2, and 2 circumference lateral walls of slip post articulate has right angle pipe 4, and right angle pipe 4 corners installs support column 5 that is symmetric distribution, and right angle pipe 4 upper end fixed mounting has limiting plate 6, and first screw hole has been seted up to limiting plate 6, and limiting plate 6 has grip block 7 through screw fixed mounting, and the arc wall has been seted up to grip block 7 one side.

The hydraulic device comprises a hydraulic cylinder 12 and a hydraulic rod 13, the hydraulic cylinder 12 is fixedly mounted in the middle of the fixing block 11, the hydraulic rod 13 is slidably mounted in the hydraulic cylinder 12, and the end part of the hydraulic rod 13 is fixedly connected with the second support frame 8.

The limiting device comprises a fixing column 18, a limiting rod 19, a limiting sleeve 20 and a round wheel 21, the fixing column 18 is fixedly mounted at the end part of the limiting ring 14, the fixing column 18 is hinged with the limiting rod 19, the annular frame 15 is hinged with the limiting sleeve 20, the limiting rod 19 is sleeved with the limiting sleeve 20, and the round wheel 21 is rotatably mounted at the end part of the limiting rod 19.

The transmission device comprises a rotating block 16 and a worm 17, the end part of the limiting ring is rotatably provided with the rotating block 16, the rotating block 16 is sleeved with the worm 17, the circumferential side wall of the annular frame 15 is fixedly provided with a fixed rod, the end part of the fixed rod is provided with a second threaded hole, and the worm 17 is sleeved with the fixed rod.

The working principle is as follows: the device is when using, at first put into spacing post (3) with bent axle one end, then promote slip post 2 and remove, it is rotatory around support column 5 to drive right angle pipe 4, drive tip limiting plate 6 inward movement, grip block 7 synchronous motion, accomplish bent axle one end axial and radially press from both sides tightly, press close to second support frame 8 with the bent axle other end after that, then increase pneumatic cylinder 12 pressure, hydraulic stem 13 slides, it slides to promote second support frame 8 to slide to the bent axle on bracing piece 9, run through spacing ring 14 until the bent axle, rotate worm 17 after that, drive annular frame 15 and rotate, it rotates to drive rotatory piece 16, it rotates to drive stop collar 20, it is rotatory to drive gag lever post 19, until round wheel 21 restriction bent axle radial displacement, accomplish and press from both sides tight location.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The clamping and positioning device for crankshaft machining comprises a first support frame (1) and a second support frame (8) and is characterized in that a limiting column (3) is fixedly mounted at the top of the first support frame (1), a limiting groove is formed in the limiting column (3), a sliding column (2) is slidably mounted in the limiting groove, a centering clamping device is mounted on the circumferential side wall of the sliding column (2), a supporting rod (9) penetrating through the limiting column is slidably mounted in the middle of the second support frame (8), a supporting plate (10) is fixedly mounted at the end part of the supporting rod (9), a fixing block (11) is fixedly mounted at the other end of the supporting rod (9), a hydraulic device is mounted in the middle of the fixing block (11), a limiting ring (14) is fixedly mounted at the top end of the second support frame (8), and an annular frame (15) is rotatably mounted at the end part of the limiting ring (14), the middle of the annular frame (15) is provided with a limiting device, and the circumferential side wall of the annular frame (15) is provided with a transmission device.

2. The clamping and positioning device for crankshaft machining according to claim 1, wherein the centering and clamping device comprises a sliding column (2), a right-angle tube (4), a supporting column (5), a limiting plate (6) and a clamping block (7), the sliding column (2) is slidably mounted inside the limiting column (3), the right-angle tube (4) is hinged to a circumferential side wall of the sliding column (2), the supporting columns (5) are symmetrically arranged at corners of the right-angle tube (4), the limiting plate (6) is fixedly mounted at the upper end of the right-angle tube (4), a first threaded hole is formed in the limiting plate (6), the clamping block (7) is fixedly mounted on the limiting plate (6) through screws, and an arc-shaped groove is formed in one side of the clamping block (7).

3. The clamping and positioning device for crankshaft machining according to claim 1, wherein the hydraulic device comprises a hydraulic cylinder (12) and a hydraulic rod (13), the hydraulic cylinder (12) is fixedly mounted in the middle of the fixing block (11), the hydraulic rod (13) is slidably mounted in the hydraulic cylinder (12), and the end of the hydraulic rod (13) is fixedly connected with the second support frame (8).

4. The clamping and positioning device for crankshaft machining according to claim 1, wherein the limiting device comprises a fixing column (18), a limiting rod (19), a limiting sleeve (20) and a round wheel (21), the fixing column (18) is fixedly mounted at the end of the limiting ring (14), the limiting rod (19) is hinged to the fixing column (18), the limiting sleeve (20) is hinged to the annular frame (15), the limiting rod (19) is sleeved with the limiting sleeve (20), and the round wheel (21) is rotatably mounted at the end of the limiting rod (19).

5. The clamping and positioning device for crankshaft machining according to claim 1, wherein the transmission device comprises a rotating block (16) and a worm (17), the rotating block (16) is rotatably mounted at the end of the limiting ring (14), the worm (17) is sleeved on the rotating block (16), a fixing rod is fixedly mounted on the circumferential side wall of the annular frame (15), a second threaded hole is formed in the end of the fixing rod, and the worm (17) is sleeved with the fixing rod.