JPS5851283A - Piston type fluid actuating apparatus - Google Patents

Abstract

PURPOSE:To render the coupling of a piston and a piston rod simple and reliable in an apparatus in which a cup-shaped diaphragm is interposed between the piston and a cylinder. CONSTITUTION:In the apparatus of this invension, a fixed flange 29 fixed to the outer circumference of a piston rod 28 in the manner that it is projected from the outer surface of the piston rod 28 is held tightly between a holding member 31 an a fixing member 24 so as to transmit the reciprocal movement of a piston 11 to the piston rod 28. By employing such an arrangement, it is enabled to prevent loosening of the piston rod 28 from the piston 11, to simplify the assembling operation and to reduce the number of component parts required for constituting the apparatus.

Description

[Detailed Description of the Invention] The present invention provides a piston in which the bottom plate of one end of two pairs of cup-shaped diaphragms is mounted on both ends of the piston in the moving direction of the piston, and the opening edge of the other end of the cup-shaped diaphragm is fixed to the cylinder via a folded part. Formula fluid operation B At 1iM, the cup-shaped diaphragm that places the bottom plate on the piston can be easily connected and fixed to the piston. The purpose is to interact with things.

Conventionally, in order to fix a piston rond to a piston, one end of the piston rond is removed from one end wall of the piston, a nut is screwed onto this protrusion, and a locking pin is inserted into the protrusion via the nut. This method has been used, but it not only requires a lot of effort to assemble, but also has the drawback that the nut, where the moving force of the piston rod is concentrated, tends to loosen.

The incidental invention eliminates the above-mentioned drawbacks, and an embodiment thereof will be described below with reference to FIG. A section cover 6'ft is connected to the front cover 4 which is attached to the front cover 4 and has a fixing flange 5 protruding outwardly at the other end.
Connect each fixed flange 3.5 with a bolt I and a nut 8.9. 4) Assemble the cylinder 1 into one piece with the small screw.

Reference numeral 11 denotes a piston inserted into the cylinder 1 through a piston 12, and a cut-shaped tire flamm 13c1 paper & 14 is placed on the outer surface of the cut-shaped tire flamm 13. is in contact with the outer cylindrical surface, and the other end of the cut-shaped tire flamm 13 is cut into a U-shaped glue part 15. It is inserted and fixed between the hot water surface of the main body 2 and the rear cover 6. 17 is the attachment 7 at the other end.
The flange 18 is inserted and fixed between the main body 2 of the cylinder 1 and the front cover 4 through the folded part 19, and a separate QI cut-off diaphragm is used, and the bottom plate 23 at one end is placed on the outer surface of the one end wall 22 of the piston 11. ing.

Reference numeral 24 denotes a fixing body having an annular collar 25 protruding from the outer periphery of one end for suppressing and fixing the bottom plate 23 to one end wall 22. The bottom wall 27, which has a U-shaped cross section and connects one end of the support wall 26, is attached to a piston rod. The fixed word 29 is in contact with one side of the fixed word 29 which is protruded from the outer periphery of the word 28. Reference numeral 31 denotes a clamping body that is in contact with the other surface of this fixed word 29, and is pre-formed separately from the yll and holds the bottom plate 14 of the cut-shaped diaphragm 13 placed on the piston 11.
The piston 11, the fixed body 24, and the histone rod 28 are integrally connected and fixed by being interposed between the piston 11 and the bottom wall 27 and fixed integrally with the fixed body 24 using a stopper 32 such as a stopper. ing. 33 is histone 1
Pressurized fluid is introduced into the pressurized chamber provided in the cylinder 1 of the above-mentioned clamping body 3111III of No. 1 IJ! It forms an inlet outlet 34. 35 is a fixed body 24 of the piston 11
1! The other pressurizing chamber provided in the cylinder 1 of +11 forms an introduction port 136 for introducing and discharging pressurized fluid. Move to 10,000 times and pressurize 10,000 pressurizing chamber 33 again?
When the +it body is introduced into the pressurized chamber, the piston 11 moves 1- on the other hand 350,000 times. 37 is a support that supports this piston rod 28 through the other end receptacle 38, which protrudes inside the front i11 cover 4 and connects the other end of the piston rod 28. It protrudes outward and is used as a haiku capital 39 for the purpose of making sweets.

In this case, the histone rod 2 is configured as described above).
8 to the piston 11 without using nara) f,
Fixture 1: #29 protruding from the outer periphery is connected to the clamping body 31 [i! ;
, + 5< being held between the body 24 and transmitting the forward and backward movement of the histone 11 to the piston rod 28, the piston rod 28 and the piston 11 are fixed t1. as in the conventional case. i
There is a possibility that the connection may become loose. In addition, the holding of the fixed word 29 by the holding body 31 and the fixed body 24 is achieved by simply demarcating the holding body 24 and the holding body 24 by a screw or the like stopper 32. Pressure contact between the bottom plate 23 and the wall 22 requires less work, and the assembly work is less than 1M, and the number of parts can be reduced compared to the conventional method.

In the above embodiment, b) the foot (i429 ct, r) is fixed to the piston 11 by firmly connecting the clamp 31 formed separately from the piston 11 to the bottom wall 27 of the body 24. However, in other different embodiments, the other end wall of the piston 11 is conveniently used as the clamping body 31, and the clamping body 312 is not formed separately as shown in FIG. This is done by fixing the flange 25 with a stopper 32 such as a screw.In this case, when the fixing member 29 contacts one side of the clamping body 31 formed integrally with the piston 11, the other side of the fixing member 29 contacts the clamping body 31 formed integrally with the piston 11. By abutting the bottom wall) T and tightening the stopper 41, the fixed rod 29 is strongly clamped between the circular surface of the clamping body 310 and the outer surface of the bottom wall 21, and the forward and backward movement of the piston 11 is controlled by the piston rod 2.
8 can be transmitted. According to this second embodiment, the clamping body 31 is formed integrally with the piston 11, and the stopper 32 passing through the clamping body 31 is not required. 28
This eliminates the need to form a notch for one end to be inserted, which prevents the pressurized liquid from percolating through the base fabric of the cup-shaped diaphragm 13 from the notch end face of the notch, and eliminates the need for drilling holes in the notch. Become. Further, the piston 110 stroke in the cylinder 1 can be made extra by the thickness of the clamping body 31 formed separately from the piston 11 and the stopper 32 that fixes it to the fixing body 244.
It is possible to downsize the entire AQ Ii'f. Also, in the first middle sister example, G-J, t^1 and flange 5 are shaped like ht, but the second one is! In the example, fixing rings 42 and 43 are inserted into the main body 2 and the front cover 4, and the cover 4 and b are fixed without connecting the body 2 and the front cover 4.6. No flange 3.5 required.

[Brief explanation of the drawing]

FIG.
FIG. 2 is a fully cutaway diagram showing an example of the second smile axis. 11...Piston

Claims (1)

[Claims] When the bottom plate of one end of the cup-shaped diaphragm is placed in the direction of both ends of the piston, which moves back and forth with a constant stroke due to the pressurizing force of the naso-pressure fluid, the opening edge of the other end of the cup-shaped diaphragm is moved by rolling. One end of the piston in those that are fixed to each cylinder via the folded part! -i, the annular flange on the outer periphery of one end of the fixed body is brought into contact with the other end of the fixed body, and the bottom wall of the other end of the fixed body is fixed on the outer periphery of the piston rond. A piston-type fluid operating device characterized in that a piston and a piston rond are connected by positioning a clamping body that can be connected and clamping a fixed collar between the clamping body and a fixed body.