CN217702379U - Jacket and hydraulic clamp - Google Patents

Abstract

The utility model provides a press from both sides cover and hydraulically operated fixture, relates to machining anchor clamps technical field, in particular to press from both sides cover and hydraulically operated fixture. The inner part of the jacket is provided with a first through hole and a second through hole which extend along the axial direction of the jacket, the first through hole is communicated with the second through hole to form a stepped hole, the aperture of the first through hole is smaller than that of the second through hole, and the communicated part of the first through hole and the second through hole is provided with a stepped surface. The inner part of the jacket of the embodiment of the application is provided with a first through hole and a second through hole which are communicated with each other, the first through hole and the second through hole form a stepped hole, and a communicated part of the first through hole and the second through hole is provided with a stepped surface. When the part is inserted into the first through hole and the second through hole, the step surface is abutted to the part, meanwhile, the jacket clamps the part, the part is fixed in the axial direction and the radial direction, and the position of the part cannot be changed randomly, so that the installation precision is ensured.

Description

Jacket and hydraulically operated fixture

Technical Field

The application relates to the technical field of machining clamps, in particular to jacket and hydraulic clamp.

Background

The machining clamp is one of indispensable important technological equipment for automation of machining production processes, and has the characteristics of ensuring the machining quality, improving the production efficiency, reducing the production cost, lightening the labor intensity, reducing the over-high requirement of the technology of workers and the like. The machining clamp plays a role in limiting and clamping a machined workpiece. In the related art, a jacket of a clamp is matched with a part through internal threads, and the part rotates in the process of mounting the part, so that the position of the part in the jacket changes, and the mounting precision is affected.

Disclosure of Invention

The embodiment of the application provides a press from both sides cover and hydraulically operated fixture to solve the part and change in the position of pressing from both sides the cover, lead to the problem that the installation accuracy is low.

A jacket comprises a jacket body, wherein a first through hole and a second through hole which extend along the axial direction of the jacket body are formed in the jacket body, the first through hole is communicated with the second through hole to form a stepped hole, the aperture of the first through hole is smaller than that of the second through hole, and a step surface is formed at the communication position of the first through hole and the second through hole.

Furthermore, the inner edge of the step surface is provided with a chamfer.

Furthermore, the outer wall of the jacket body is provided with an expansion joint, and the expansion joint axially extends from the outer wall of the jacket body to the first through hole and the second through hole.

Furthermore, the number of the expansion joints is three, and the three expansion joints are uniformly arranged along the circumferential direction of the jacket body.

Further, the outer diameter of the jacket body gradually increases from the middle part to the end part of the jacket body to form an inverted frustum structure, and the end part is one end of the jacket body with a second through hole.

Furthermore, the first through hole and the second through hole are both cylindrical holes, and the first through hole and the second through hole are coaxially arranged.

There is also provided a hydraulic clamp, comprising:

the hydraulic long handle is internally provided with a containing hole extending along the axial direction of the hydraulic long handle, the containing hole penetrates through the end part of the hydraulic long handle, and the hydraulic long handle is provided with a bolt for adjusting hydraulic pressure in the containing hole;

and the jacket body of the jacket is inserted into the accommodating hole, and the end part of the jacket with the second through hole is exposed out of the liquid rolling long handle.

Further, the hydraulic rolling long handle is of a cylindrical structure.

Furthermore, the outer diameter of the jacket body gradually increases from the middle to the end of the jacket body to form an inverted frustum structure, and the inner edge of the accommodating hole is provided with a chamfer matched with the inverted frustum structure.

Furthermore, the accommodation hole is a cylindrical hole, the jacket body is of a cylindrical structure, the aperture of the accommodation hole is matched with the outer diameter of the jacket body, and the accommodation hole, the jacket body, the first through hole of the jacket body and the second through hole of the jacket body are coaxially arranged.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a jacket and a hydraulic clamp, the inside of the jacket body of the embodiment of the application is provided with a first through hole and a second through hole which are communicated, the first through hole and the second through hole form a stepped hole, and the communicated part of the first through hole and the second through hole is provided with a stepped surface. When the part is inserted into the first through hole and the second through hole, the step surface is abutted to the part, meanwhile, the jacket body clamps the part, the part is fixed in the axial direction and the radial direction, and the position of the part cannot be changed randomly, so that the installation precision is ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a jacket according to an embodiment of the present application;

fig. 2 is a schematic overall structure diagram of a hydraulic clamp according to an embodiment of the present application.

Reference numerals:

1. a jacket body; 11. a first through hole; 12. a second through hole; 2. expansion joints; 3. hydraulically rolling the long handle; 31. a receiving hole; 4. and (4) bolts.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a press from both sides cover and hydraulically operated fixture, and it can solve the part and change in the position that presss from both sides the cover, leads to the problem that the installation accuracy is low.

As shown in fig. 1, a jacket comprises a jacket body 1, wherein a first through hole 11 and a second through hole 12 extending along the axial direction of the jacket body 1 are arranged in the jacket body 1, the first through hole 11 is communicated with the second through hole 12 to form a stepped hole, the aperture of the first through hole 11 is smaller than that of the second through hole 12, and a step surface is arranged at the communication part of the first through hole 11 and the second through hole 12.

Specifically, in the embodiment of the present application, the jacket body 1 has a cylindrical structure. The first through hole 11 in the jacket body 1 may or may not penetrate the end of the jacket body 1, and may be determined according to actual circumstances. One end of the second through hole 12 in the jacket body 1 communicates with the first through hole 11, and the other end thereof penetrates the end of the jacket body 1. The first through hole 11 and the second through hole 12 inside the jacket body 1 form a space for accommodating parts.

Specifically, the length of the first through-hole 11 is much longer than the length of the second through-hole 12. In other embodiments, the ratio of the lengths of the first through hole 11 and the second through hole 12 may be determined according to practical situations. The diameters of the first through-hole 11 and the second through-hole 12 may be determined according to actual circumstances.

Further, the first through hole 11 and the second through hole 12 are coaxially provided.

Specifically, in the embodiment of the present application, the jacket body 1 has a cylindrical structure, and the first through hole 11 and the second through hole 12 are both cylindrical holes. The first through hole 11 and the second through hole 12 are coaxially arranged, so that the stress uniformity of the communication part of the first through hole 11 and the second through hole 12 can be ensured. In addition, when the part is inserted into the first through hole and the second through hole 12, the step surface is acted by the part, and the part is also acted by the step surface, and the first through hole 11 and the second through hole 12 are coaxially arranged, so that the uniform stress of the contact surface of the step surface and the part can be ensured, the step surface or the part is prevented from being damaged, and in addition, the part can be ensured to be fully abutted and fixed by the step surface at a plurality of positions.

In other embodiments, the shapes of the first through hole 11 and the second through hole 12 may be determined according to actual conditions. Preferably, the first through hole 11 and the second through hole 12 have the same shape and are coaxially arranged to ensure that the step surfaces are symmetrical.

Furthermore, the inner edge of the step surface is provided with a chamfer.

Specifically, when the part is inserted into the first through hole 11 and the second through hole 12, the inner edge of the step surface is in direct contact with the part, the inner edge is chamfered, and the chamfer is in surface contact with the part, so that the part can be protected, and the part is prevented from being damaged by the inner edge of the step surface. Moreover, the chamfering treatment can avoid the damage of the excessive stress concentration caused by the overlarge acting force of the part on the inner edge of the step surface. In addition, the chamfering process can play a role in guiding the arrangement of the parts.

Further, the outer wall of the jacket body 1 is provided with an expansion joint 2, and the expansion joint 2 axially extends from the outer wall of the jacket body 1 to the first through hole 11 and the second through hole 12.

Specifically, in this application embodiment, press from both sides cover body 1 and be used for inserting the inside of locating liquid calendering long handle 3, certain activity space can be reserved for the appearance change of the outer wall that presss from both sides cover body 1 to expansion joint 2, makes to press from both sides cover body 1 and adapt to the inside hydraulic pressure change of liquid calendering long handle 3 better, plays the effect of protection to pressing from both sides cover body 1, avoids pressing from both sides cover body 1 at the in-process that hydraulic pressure changed, suffers the damage. In a similar way, the expansion joint 2 extends from the outer wall of the jacket body 1 to the first through hole 11 and the second through hole 12 along the axial direction, and the expansion joint 2 also plays a role in protecting the first through hole 11 and the second through hole 12.

When the hydraulic pressure inside the hydraulic extension handle 3 is increased, the inner wall near the expansion joint 2 is pressed towards the expansion joint 2 under the action of the hydraulic pressure, and the jacket body 1 tightly clamps the part. Meanwhile, the expansion joint 2 can provide an extruded space for the inner wall, so that the inner wall is prevented from being extruded and deformed, and the structure of the jacket body 1 is prevented from being damaged.

It can be known that the expansion joint 2 does not completely separate the outer wall of the jacket body 1, and the jacket body 1 is always a complete structure. In this embodiment, the expansion joint 2 extends from the middle of the outer wall of the jacket body 1 to the first through hole 11 and the second through hole 12 along the axial direction, and in other embodiments, the length of the expansion joint 2 may be determined according to actual conditions.

Further, the number of expansion joints 2 is three, and three expansion joints 2 are evenly arranged along the circumferential direction of the jacket body 1.

Specifically, in this application embodiment, the quantity at expansion joint 2 is three to three expansion joints 2 evenly set up along the circumferencial direction who presss from both sides cover body 1, can guarantee that the outer wall atress that presss from both sides cover body 1 is even, thereby guarantee to press from both sides the structural integrity who overlaps body 1. In addition, when the parts are inserted into the first through hole 11 and the second through hole 12, the acting force applied to the parts is also uniform, and the parts are prevented from being damaged or changing positions due to uneven force. In other embodiments, the number of the expansion joints 2 may be set according to actual situations.

Further, the outer diameter of the jacket body 1 gradually increases from the middle to the end of the jacket body 1, forming an inverted frustum structure, the end being the end of the jacket body 1 having the second through hole 12.

Specifically, in the embodiment of the present application, the jacket body 1 is configured to be inserted inside the liquid-rolling long shank 3, and the inverted frustum structure enables the jacket body 1 to be positioned when inserted inside the liquid-rolling long shank 3, so as to ensure that the end portion of the jacket body 1 having the second through hole 12 is exposed outside the liquid-rolling long shank 3. Moreover, the end of the jacket body 1 is enlarged in volume due to the inverted frustum structure, the strength and stability of the end are enhanced, and the end of the jacket body 1 cannot be easily damaged after the parts are inserted.

It can be understood that the jacket body 1 is divided into a cylindrical structure and an inverted frustum structure, and the end of the inverted frustum structure with a smaller caliber is butted with the cylindrical structure. In other embodiments, the volume of the inverted frustum structure may be set according to actual conditions.

As shown in fig. 2, the present embodiment also provides a hydraulic clamp, which includes a hydraulic long shank 3 and the jacket.

The hydraulic extension stem 3 has a receiving hole 31 extending in the axial direction thereof, the receiving hole 31 penetrates an end portion of the hydraulic extension stem 3, and the hydraulic extension stem 3 is provided with a bolt 4 for adjusting the hydraulic pressure inside the receiving hole 31. The jacket body 1 of the jacket is inserted into the accommodating hole 31, and the end of the jacket body 1 having the second through hole 12 is exposed to the liquid-rolling long shank 3.

Specifically, in the present embodiment, the length of the hydraulic extension stem 3 having the receiving hole 31 extending in the axial direction thereof in the interior thereof may be set according to actual circumstances, for example, may be set according to the length of the jacket body 1, hydraulic pressure requirements, and the like. The side wall of the hydraulic extension handle 3 is provided with a through hole for inserting the bolt 4, when the bolt 4 is inserted into the through hole, the hydraulic pressure inside the hydraulic extension handle 3 is increased, so that the jacket body 1 inside is tightly clamped. It is understood that the amount of hydraulic pressure inside the receiving hole 31 can be adjusted by adjusting the insertion depth of the bolt 4.

Further, the hydraulic extension handle 3 is of a cylindrical structure.

Specifically, above-mentioned hydraulic pressure calendering long handle 3 is the cylinder structure, can be applicable to multiple operating mode, need not additionally overlap establish with hydraulic pressure extension handle 3 assorted cover, saved machining's time, improved machining efficiency.

Specifically, in this application embodiment, hydraulic pressure extension handle 3 is the cylinder structure, and its outside cover is equipped with the ring, and the ring link up with the inside of cylinder structure, and the lateral wall of ring is provided with and is used for adjusting the inside hydraulic bolt 4 of accommodation hole 31, can avoid the direct trompil in the lateral wall of cylinder structure, guarantees the structural integrity of cylinder structure.

Further, the outer diameter of the jacket body 1 gradually increases from the middle to the end of the jacket body 1 to form an inverted frustum structure, and the inner edge of the accommodating hole 31 has a chamfer matched with the inverted frustum structure.

Specifically, the inner edge of the accommodation hole 31 has a chamfer matching the outer wall of the inverted truncated cone structure. When pressing from both sides the inside of cover body 1 and inserting and locating accommodation hole 31, the interior border and the cover body 1 direct contact of accommodation hole 31, interior border chamfer is handled, and the chamfer contacts with pressing from both sides 1 face-to-face of cover body, can play the effect of protection to pressing from both sides cover body 1 to the interior border of accommodation hole 31 damages the part. Moreover, the chamfering process can prevent the inner edge of the accommodating hole 31 from being damaged due to too concentrated stress caused by too large acting force of parts.

Further, the accommodating hole 31 is a cylindrical hole, the jacket body 1 is a cylindrical structure, the hole diameter of the accommodating hole 31 is matched with the outer diameter of the jacket body 1, and the accommodating hole 31, the jacket body 1, the first through hole 11 and the second through hole 12 are coaxially arranged.

Specifically, the hole diameter of the accommodating hole 31 is matched with the outer diameter of the jacket body 1, so that the accommodating hole 31 can only clamp the jacket body 1, and the random change of the position of the jacket body 1 is avoided.

Specifically, in the embodiment of the present application, the jacket body 1 has a cylindrical structure, and the first through hole 11 and the second through hole 12 are both cylindrical holes. The first through hole 11 and the second through hole 12 are coaxially arranged, so that the stress uniformity of the communication part of the first through hole 11 and the second through hole 12 can be ensured, the uniform stress of the contact surface of the step surface and a part can be ensured, and the step surface or the part can be prevented from being damaged. The accommodating hole 31 is coaxially arranged with the jacket body 1, the first through hole 11 of the jacket body 1 and the second through hole 12 of the jacket body 1, so that when the jacket body 1 is inserted into the accommodating hole 31, the jacket body 1 is uniformly stressed, and the parts are uniformly stressed.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in this application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the phrase "comprising a. -. Said" to define an element does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A jacket, comprising: the clamping sleeve comprises a clamping sleeve body (1), wherein a first through hole (11) and a second through hole (12) which extend along the axial direction of the clamping sleeve body (1) are formed in the clamping sleeve body (1), the first through hole (11) is communicated with the second through hole (12) to form a stepped hole, the hole diameter of the first through hole (11) is smaller than that of the second through hole (12), and a step surface is arranged at the communication position of the first through hole (11) and the second through hole (12).

2. The jacket of claim 1, wherein: and the inner edge of the step surface is provided with a chamfer.

3. The jacket of claim 1, wherein: the expansion joint (2) is arranged on the outer wall of the jacket body (1), and the expansion joint (2) axially extends from the outer wall of the jacket body (1) to the first through hole (11) and the second through hole (12).

4. The jacket of claim 3, wherein: the number of the expansion joints (2) is three, and the three expansion joints (2) are uniformly arranged along the circumferential direction of the jacket body (1).

5. The jacket of claim 1, wherein: the outer diameter of the jacket body (1) gradually increases from the middle part to the end part of the jacket body (1) to form an inverted frustum structure, and the end part is one end of the jacket body (1) with a second through hole (12).

6. The jacket of claim 1, wherein: the first through hole (11) and the second through hole (12) are both cylindrical holes, and the first through hole (11) and the second through hole (12) are coaxially arranged.

7. A hydraulic clamp, comprising:

the hydraulic long handle (3) is internally provided with a containing hole (31) extending along the axial direction of the hydraulic long handle, the containing hole (31) penetrates through the end part of the hydraulic long handle (3), and the hydraulic long handle (3) is provided with a bolt (4) for adjusting the hydraulic pressure in the containing hole (31);

and the jacket according to any one of claims 1 to 6, the jacket body (1) of which is inserted in the accommodation hole (31), and an end of the jacket body (1) having the second through-hole (12) is exposed to the liquid-rolled shank (3).

8. The hydraulic clamp of claim 7, wherein: the hydraulic rolling long handle (3) is of a cylindrical structure.

9. The hydraulic clamp of claim 7, wherein: the outer diameter of the jacket body (1) gradually increases from the middle to the end of the jacket body (1) to form an inverted frustum structure, and the inner edge of the accommodating hole (31) is provided with a chamfer matched with the inverted frustum structure.

10. The hydraulic clamp of claim 7, wherein: the clamping sleeve is characterized in that the accommodating hole (31) is a cylindrical hole, the clamping sleeve body (1) is of a cylindrical structure, the hole diameter of the accommodating hole (31) is matched with the outer diameter of the clamping sleeve body (1), and the accommodating hole (31) is coaxially arranged with the clamping sleeve body (1), the first through hole (11) of the clamping sleeve body (1) and the second through hole (12) of the clamping sleeve body (1).

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