CN202125482U

CN202125482U - Simple rotary cylinder

Info

Publication number: CN202125482U
Application number: CN2011202043319U
Authority: CN
Inventors: 杜继涛; 朱正龙; 黄灿
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-01-25
Anticipated expiration: 2021-06-16

Abstract

The utility model discloses a simple rotary cylinder. A piston and a piston rod are installed in a cylinder barrel, a front cylinder cover and a rear cylinder cover are installed at the front end and the rear end of the cylinder barrel to form a cylinder body, the cylinder body is connected with a ball screw through a connecting sleeve, and the piston rod and a lead screw are connected through threads and fixed through a conical pin. When compressed gas is exerted at the right end of the cylinder, the piston drives the piston rod to move forwards, and the piston rod pushes the lead screw to move forwards, when the lead screw passes through a ball screw nut pair, the lead screw performs rotary motion due to the effect of a ball and an inclined helical groove, and accordingly the piston rod is driven to perform rotary motion. The simple rotary cylinder can finish reciprocating and rotary motion without the match of external power machinery, and is simple in structure, low in construction cost and convenient in operation.

Description

A kind of simple and easy rotary cylinder

Technical field

The utility model relates to a kind of cylinder, particularly a kind of simple and easy rotary cylinder.

Background technique

Often need workpiece be screwed in assembling in automatic field; Generally be to utilize rotary cylinder to realize in the production; The rotary cylinder structure of selling in the market is more complicated all generally; Fabricating cost is higher, and the piston rod of cylinder can only be done straight line motion usually, needs other parts to cooperate and could accomplish rotatablely moving of cylinder.

China model utility specification CN2104336U has disclosed a kind of rotary cylinder, and it is in being provided with the cylinder body of vent, to be provided with piston.Seal ring all is housed on cylinder body and the piston, is adorning the input shaft that stretches in the piston cavity with bearing bracket stand in the cylinder body, the other end in the piston cavity is being adorned the output shaft that is connected with input shaft with bearing bracket stand.Pressurized air promotes piston and realizes to-and-fro motion, starts the dynamic power machine that is connected with input shaft and realizes rotatablely moving of this cylinder.Though this cylinder just can realize that at the compressed-air actuated dynamic power machine that starts simultaneously cylinder accomplishes the purpose back and forth add rotary motion.But external impetus machinery need be installed just can realize the purpose of rotating, complex structure involves great expense.

Summary of the invention

The technical problem that the utility model will solve provides a kind of simple and easy rotary cylinder, and it does not need outside dynamic power machine to cooperate just can accomplish back and forth to add rotary motion, and simple in structure, cheap.

For solving the problems of the technologies described above, the technological scheme that the utility model provides is that existing generic linear motion cylinder is transformed, and designs a kind of simple and easy rotary cylinder; Piston and piston rod are housed in cylinder barrel, and the cylinder barrel front end and back end is equipped with front end housing and back cylinder cover, forms a cylinder body; It is characterized in that: said cylinder body utilizes coupling sleeve to be connected with ball screw; Wherein, piston rod and leading screw be through being threaded, and fix with taper pin.

Said cylinder body utilizes hexagon nut and bolt shank to connect with coupling sleeve.

Said ball screw and coupling sleeve are through screw attachment, and angle of bevel is 40 degree on the ball screw.

Said piston rod two ends are equipped with front roll bearing and rear rolling bearing, and the front roll bearing inner ring is installed on the piston rod, and the outer ring is installed on the front end housing; The bearing right-hand member is fixed through multidiameter shaft; Left end is fixed through bearing cap and socket head screw, and the rear rolling bearing inner ring is installed on the piston rod, and the outer ring is installed on the piston; Left end is through the multidiameter shaft axial restraint, and right-hand member is fixed through axle sleeve.

Said piston is to utilize magnet to be installed on the piston rod.

Guide pin bushing and back guide pin bushing before said piston rod right ends is equipped with.

On said piston rod and the piston buffer plunger is installed, between buffer plunger and the cylinder barrel guide ring is installed.

O type sealing cover is installed between said cylinder barrel and front end housing and back cylinder cover.

Beneficial effect

When the cylinder right-hand member applies pressurized gas; Piston can drive piston rod and travel forward, and is rigid joint between piston rod and the leading screw, and piston rod will promote leading screw and travel forward; When leading screw passes through ball guide screw nat; Receive ball and tiltedly spin slot effect, can rotate motion, rotatablely move thereby drive piston rod.

The utility model does not need outside dynamic power machine to cooperate just can accomplish back and forth to add rotary motion, and simple in structure, cheap, easy to operate.

Description of drawings

Accompanying drawing 1 is the utility model structural representation.

Wherein: 1, piston, 2, piston rod, 3, front end housing, 4, back cylinder cover, 5, coupling sleeve, 6, leading screw, 7, taper pin; 8, hexagon nut, 9, bolt shank, 10, screw, 11, front roll bearing, 12, rear rolling bearing, 13, magnet, 14, bearing cap; 15, socket head screw, 16, axle sleeve, 17, preceding guide pin bushing, 18, the back guide pin bushing, 19, buffer plunger, 20, cylinder barrel; 21, guide ring, 22, O type sealing cover, 23, ball screw, 24, rubber pad, 25, the O RunddichtringO, 26, piston packing; 27, baffle plate, 28, hex head bolt, 29, buffer throttling valve, 30, seal ring, 31, buffer throttling valve, 32, ball guide screw nat.

Embodiment

Below in conjunction with specific embodiment, the utility model is further set forth.

Shown in accompanying drawing 1, a kind of simple and easy rotary cylinder partly is made up of cylinder portion and ball screw, and cylinder portion and ball screw partly connect through coupling sleeve 5.

Cylinder portion is made up of piston 1, piston rod 2, front end housing 3, back cylinder cover 4, bolt shank 10, front roll bearing 11, rear rolling bearing 12, magnet 13, bearing cap 14, socket head screw 15, axle sleeve 16, preceding guide pin bushing 17, back guide pin bushing 18, buffer plunger 19, cylinder barrel 20, guide ring 21, O type sealing cover 22, O RunddichtringO 25, piston packing 26, baffle plate 27, hex head bolt 28, buffer throttling valve 29, seal ring 30.Piston 1 is installed on the piston rod 2 through magnet 13 connections; O RunddichtringO 25 is installed between piston 1 and the piston rod 2, and buffer plunger 19 is installed on piston 1 and the piston rod 2, and guide ring 21 is installed between buffer plunger 19 and the cylinder; Rear rolling bearing 12 inner rings are installed on the piston rod 2; The outer ring is installed on the piston 1, and rear rolling bearing 12 left ends are through the multidiameter shaft axial restraint, and right-hand member is fixing through axle sleeve 16; Back guide pin bushing 18 is installed in piston rod 2 right-hand members, and back guide pin bushing 18 right-hand members are fixed through baffle plate 27, hex head bolt 28, spring washer.Back cylinder cover 4 is fixed through bolt shank 10, spring washer and hexagon nut, between back cylinder cover 4 and buffer plunger 19, seal ring is installed.Buffer throttling valve 29 is installed on the back cylinder cover 4, in order to the pilot pressure size.Cylinder barrel 20 connects with front end housing 3 and back cylinder cover 4, and 4 of cylinder barrel 20 and front end housing 3 and back cylinder covers are installed O type sealing cover 22.Preceding guide pin bushing 17 is installed on the piston rod 2, and front roll bearing 11 inner rings are installed on the piston rod 2, and the outer ring is installed on the front end housing 3, and the bearing right-hand member is fixed through multidiameter shaft, and left end is fixing with socket head screw 16 through bearing cap 14.Buffer throttling valve 31 is installed on the front end housing 3, the pilot pressure size.

The ball screw part is made up of leading screw 6, rubber pad 24, ball guide screw nat 32 etc.Connect through skewed slot and ball between ball guide screw nat 32 and the leading screw 6, rubber pad 24 is installed in the groove that leading screw 6 front ends process.Cylinder portion and ball screw partly connect through coupling sleeve 5, and coupling sleeve 5 connects through hexagon nut 8 and bolt shank 9 with cylinder portion, and coupling sleeve 5 connects through screw 10 with ball guide screw nat 32.Leading screw 6 passes through screw thread and taper pin 7 rigid joint with piston rod 2.

When right-hand member applied pressurized gas, piston 1 can drive piston 2 bars and travel forward, owing to be rigid joint between piston rod 2 and the leading screw 6; Piston rod 2 will promote leading screw 6 and travel forward; When leading screw 6 passes through ball guide screw nat 32, receive ball and the oblique spin slot effect of 40 degree, can rotate motion.In the Front-end Design of leading screw 6 outside thread and internal thread, and rubber pad 24.When assembling, just select internal thread if screw in outside thread; If just select outside thread when screwing in internal thread, can lock through the effect of block rubber 24 when screwing in outside thread.

Claims

1. simple and easy rotary cylinder; Piston (1) and piston rod (2) are housed in cylinder barrel (20); Cylinder barrel (20) front end and back end is equipped with front end housing (3) and back cylinder cover (4), forms a cylinder body, it is characterized in that: said cylinder body utilizes coupling sleeve (5) to be connected with ball screw (23); Piston rod (2) and leading screw (6) be through being threaded, and fixing with taper pin (7).

2. a kind of simple and easy rotary cylinder according to claim 1 is characterized in that: said cylinder body utilizes hexagon nut (8) and bolt shank (9) to connect with coupling sleeve (5).

3. a kind of simple and easy rotary cylinder according to claim 1 is characterized in that: said ball screw (23) connects through screw (10) with coupling sleeve (5), and it is 40 degree that ball screw (23) is gone up angle of bevel.

4. a kind of simple and easy rotary cylinder according to claim 1; It is characterized in that: said piston rod (2) two ends are equipped with front roll bearing (11) and rear rolling bearing (12), and front roll bearing (11) inner ring is installed on the piston rod (2), and the outer ring is installed on the front end housing (3); The bearing right-hand member is fixed through multidiameter shaft; Left end is fixing through bearing cap (14) and socket head screw (15), and rear rolling bearing (12) inner ring is installed on the piston rod (2), and the outer ring is installed on the piston (1); Left end is through the multidiameter shaft axial restraint, and right-hand member is fixing through axle sleeve (16).

5. a kind of simple and easy rotary cylinder according to claim 1 is characterized in that: said piston (1) is to utilize magnet (13) to be installed on the piston rod (2).

6. according to claim 1 or 4 described a kind of simple and easy rotary cylinders, it is characterized in that: said piston rod (2) right ends is equipped with preceding guide pin bushing (17) and back guide pin bushing (18).

7. a kind of simple and easy rotary cylinder according to claim 1 is characterized in that: on said piston rod (2) and the piston (1) buffer plunger (19) is installed, between buffer plunger (19) and the cylinder barrel (20) guide ring (21) is installed.

8. a kind of simple and easy rotary cylinder according to claim 1 is characterized in that: O type sealing cover (22) is installed between said cylinder barrel (20) and front end housing (3) and back cylinder cover (4).