CN214743122U

CN214743122U - Precise electric cylinder structure

Info

Publication number: CN214743122U
Application number: CN202121268376.2U
Authority: CN
Inventors: 刘拥军
Original assignee: Dongguan Ruilian Intelligent Equipment Co ltd
Current assignee: Dongguan Ruilian Intelligent Equipment Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-16
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses an accurate electronic jar structure, it includes end cover, cylinder body, piston rod and guide block, the end cover sets up the preceding tip of cylinder body, the one end of piston rod is located in the cylinder body, and be equipped with the piston of cylinder body looks adaptation, the guide block sets up the one side that is close to the end cover in the cylinder body, the outer wall of this guide block with the inner chamber wall of cylinder body contacts, the central point of this guide block put be equipped with the guiding hole of piston rod looks adaptation. The utility model has the advantages of ingenious and reasonable structural design, the guide block is additionally arranged, the outer wall of the guide block is contacted with the inner cavity wall of the cylinder body, the guide hole of the guide block is matched with the piston rod, the piston rod can be well guided and supported, the stability of the piston rod during telescopic action is effectively improved, the action precision is high, and the working stability is good; and overall structure is simple, and is with low costs, easily realizes, does benefit to extensive popularization and application.

Description

Precise electric cylinder structure

Technical Field

The utility model relates to an electronic jar technical field, concretely relates to accurate electronic jar structure.

Background

The electric cylinder is a linear motion device which integrates a motor and a lead screw into a whole, has the advantages of high transmission precision, quick response, low noise, strong pollution resistance and the like, and has the advantage of being connected with a control circuit to realize high-precision motion control more easily. Due to the advantages of the electric cylinder, the electric cylinder has wider and wider application fields, such as the fields of industrial processing, aerospace, robots, simulation instruments, medical machinery and the like.

The publication No. CN105914939A, entitled "a novel structure of electric cylinder", discloses a novel structure of electric cylinder, which can realize the purpose of servo electric, but one end of the piston rod is movably arranged in the cylinder barrel through the piston body, the other end carries out spacing guidance to the telescopic action of the piston rod through the guide sleeve on the front end cover, the matching area of the guide sleeve and the piston rod is small, the guidance spacing effect is not ideal, the shaking phenomenon easily occurs when the piston rod carries out telescopic action, and the working stability is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to the aforesaid, the utility model aims to provide a structural design is ingenious, reasonable, promotes the stationarity of the flexible action of piston rod, the good accurate electronic jar structure of job stabilization nature.

In order to achieve the above purpose, the utility model provides a technical scheme is:

the utility model provides a precision electric cylinder structure, its includes end cover, cylinder body, piston rod and guide block, the end cover sets up the front end portion of cylinder body, the one end of piston rod is located in the cylinder body, and be equipped with the piston of cylinder body looks adaptation, the guide block sets up the one side that is close to the end cover in the cylinder body, the outer wall of this guide block with the inner chamber wall of cylinder body contacts, the central point of this guide block put be equipped with the guiding hole of piston rod looks adaptation.

As an optimized scheme of the utility model, be equipped with on the end cover and let the through-hole that the piston rod stretches out, this through-hole orientation the one end of cylinder body radially enlarges and forms the assembly chamber, and the opening in this assembly chamber radially enlarges and forms the diameter and is greater than the card chamber of the inner chamber diameter of cylinder body, nevertheless be less than the external diameter of this cylinder body, the guide block of easy to assemble.

As a preferred scheme of the utility model, the guide block orientation the one end of end cover be equipped with the insertion portion of assembly chamber looks adaptation and with the spacing portion of card chamber looks adaptation, the cooperation is effectual.

As a preferred scheme of the utility model, the tail end of cylinder body is equipped with the rotating assembly who is used for installing the lead screw, the piston rod is equipped with and lets the lead screw axial stretch into flexible chamber in it, the tail end setting of lead screw is on rotating assembly, and the front end stretches into flexible chamber, just flexible intracavity be equipped with the nut of lead screw looks adaptation, the cooperation is effectual.

As an optimized scheme of the utility model, the radial increase in opening in flexible chamber forms and is used for the installation the fixed chamber of nut brings the convenience for the nut installation.

As a preferred scheme of the utility model, the upper surface of end cover corresponds the position is equipped with the holding ring around the through-hole, this holding ring with the through-hole is concentric setting, fixes a position fast when easy to assemble.

As an optimized scheme of the utility model, be equipped with the mounting hole on the end cover, it is convenient to bring for the integral erection.

The utility model has the advantages that: the utility model has the advantages of ingenious and reasonable structural design, the guide block is additionally arranged, the outer wall of the guide block is contacted with the inner cavity wall of the cylinder body, the guide hole of the guide block is matched with the piston rod, the piston rod can be well guided and supported, the stability of the piston rod during telescopic action is effectively improved, the action precision is high, and the working stability is good; and overall structure is simple, and is with low costs, easily realizes, does benefit to extensive popularization and application.

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

Fig. 1 is a schematic sectional structure diagram of the present invention.

Fig. 2 is an exploded schematic view of the present invention.

Fig. 3 is a schematic diagram of the structure of the guide block in the present invention.

Detailed Description

Embodiment, referring to fig. 1 and 2, the present embodiment provides a precision electric cylinder structure, which includes an end cover 1, a cylinder body 2, a piston rod 3, a guide block 4, and a screw rod 5.

The end cover 1 is arranged at the front end part of the cylinder body 2 through a screw, one end of the piston rod 3 is arranged in the cylinder body 2 and is provided with a piston matched with the cylinder body 2, and a through hole 11 allowing the piston rod 3 to extend out is formed in the center of the end cover 1.

The guide block 4 is arranged at one side of the cylinder body 2 close to the end cover 1, the outer wall of the guide block 4 is contacted with the inner cavity wall of the cylinder body 2, and a guide hole 43 matched with the piston rod 3 is arranged at the center of the guide block 4.

In this embodiment, in order to facilitate the installation of the guide block 4, an end of the through hole 11 facing the cylinder block 2 is radially enlarged to form an assembly cavity 12, and an opening of the assembly cavity 12 is radially enlarged to form a clamping cavity 13 having a diameter larger than the diameter of the inner cavity of the cylinder block 2 but smaller than the outer diameter of the cylinder block 2. Referring to fig. 3, the end of the guide block 4 facing the end cover 1 is radially reduced to form an insertion portion 41 adapted to the assembly cavity 12, and the front portion is radially increased to form a limiting portion 42 adapted to the clamping cavity 13, during assembly, the insertion portion 41 is inserted into the assembly cavity 12, and the limiting portion 42 is located in the clamping cavity 13 and can be pressed against the edge of the opening of the inner cavity of the cylinder body 2, so that the assembly is tight, the matching effect is good, the working accuracy is effectively improved, and the guide block is simple in structure, easy to assemble and disassemble, and convenient for daily maintenance. In other embodiments, in order to limit the position of the guide block 4, the guide block 4 may be fixed to the end cover 1 or the cylinder body 2 by screws, or a positioning cavity or a clamping protrusion with a shape matched with that of the guide block 4 is formed in the housing, so as to achieve the purpose of installing the guide block 4 in a limited manner.

Preferably, a positioning ring 14 is arranged on the upper surface of the end cover 1 corresponding to the periphery of the through hole 11, and the positioning ring 14 and the through hole 11 are arranged concentrically, so that the quick positioning is convenient to mount. The edge position of the end cover 1 is provided with a mounting hole 15, which brings convenience to the whole installation.

The rear end of cylinder body 2 is equipped with the rotating assembly 6 that is used for installing lead screw 5, like bearing or axle sleeve etc, piston rod 3 is equipped with and lets 5 axial of lead screw stretch into flexible chamber 31 in it, the tail end setting of lead screw 5 is on rotating assembly 6, and the front end stretches into flexible chamber 31, just be equipped with in the flexible chamber 31 with the nut 7 of 5 looks adaptations of lead screw, it is concrete the radial increase in opening in flexible chamber 31 forms and is used for installing the fixed chamber 32 of nut 7, brings the convenience for nut 7 installation, and the cooperation is effectual.

During operation, because of the additional arrangement of the guide block 4, the outer wall of the guide block 4 is in contact with the inner cavity wall of the cylinder body 2, the guide hole 43 of the guide block 4 is matched with the piston rod 3, so that the piston rod 3 can be well guided and supported, the stability of the piston rod 3 during telescopic action is effectively improved, the action precision is high, and the working stability is good.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the description, the terms are used for convenience of description and do not limit the invention, and other structures that are the same as or similar to the terms are also within the scope of the invention.

Claims

1. The utility model provides a precision electric cylinder structure, its includes end cover, cylinder body and piston rod, its characterized in that, it still includes the guide block, the end cover sets up the front end portion of cylinder body, the one end of piston rod is located in the cylinder body, and be equipped with the piston of cylinder body looks adaptation, the guide block sets up the one side that is close to the end cover in the cylinder body, the outer wall of this guide block with the inner chamber wall of cylinder body contacts, the central point of this guide block put be equipped with the guiding hole of piston rod looks adaptation.

2. The precision electric cylinder structure according to claim 1, characterized in that: the end cover is provided with a through hole for the piston rod to extend out, the through hole is radially expanded towards one end of the cylinder body to form an assembly cavity, and an opening of the assembly cavity is radially expanded to form a clamping cavity with the diameter larger than the diameter of the inner cavity of the cylinder body but smaller than the outer diameter of the cylinder body.

3. The precision electric cylinder structure according to claim 2, characterized in that: one end of the guide block, which faces the end cover, is provided with an insertion part matched with the assembly cavity and a limiting part matched with the clamping cavity.

4. The precision electric cylinder structure according to claim 1, characterized in that: the tail end of the cylinder body is provided with a rotating assembly used for installing a screw rod, the piston rod is provided with a telescopic cavity allowing the screw rod to axially extend into the piston rod, the tail end of the screw rod is arranged on the rotating assembly, the front end of the screw rod extends into the telescopic cavity, and a nut matched with the screw rod is arranged in the telescopic cavity.

5. The precision electric cylinder structure according to claim 4, characterized in that: the opening of the telescopic cavity is radially enlarged to form a fixing cavity for mounting the nut.

6. The precision electric cylinder structure according to claim 2, characterized in that: and the upper surface of the end cover is provided with a positioning ring corresponding to the periphery of the through hole, and the positioning ring and the through hole are arranged in the same circle center.

7. The precision electric cylinder structure according to any one of claims 1 to 6, characterized in that: the end cover is provided with a mounting hole.