CN220944186U - Clamp with limiting function - Google Patents

Abstract

The utility model discloses a clamp with a limiting function, which belongs to the technical field of positioning clamps and comprises a mounting base, wherein an outer clamping pipe is fixedly connected to the top of the mounting base, a plurality of sliding grooves are formed in the side face of the outer clamping pipe, an electric hydraulic rod is fixedly arranged on the top face of the mounting base and positioned in an inner cavity of the outer clamping pipe, and the output end of the electric hydraulic rod is fixedly connected with a supporting plate. According to the fixture with the limiting function, the first electric push rod is used for driving the extrusion plate to fix the shaft workpiece to be machined, the plurality of second electric push rods are used for driving the top balls to limit the side parts of the shaft workpiece, so that the shaft workpiece and the outer clamping tube are concentrically arranged, a cutter of a machining center is always used for machining the shaft workpiece above a supporting position of the top balls, the supporting and limiting positions of the shaft workpiece are used for supporting and limiting the machining position of the top balls, the stress deformation of the shaft workpiece is prevented from influencing the machining quality of the shaft workpiece, and the working quality of the fixture with the limiting function is improved.

Description

Clamp with limiting function

Technical Field

The utility model relates to the technical field of positioning fixtures, in particular to a fixture with a limiting function.

Background

The five-axis linkage machining center is also called a five-axis machining center, and the five-axis linkage numerical control machining center system is the only means for machining impellers, blades, marine propellers, heavy-duty generator rotors, turbine rotors, large diesel engine crankshafts and the like, and the shaft workpiece is required to be limited and fixed when the five-axis machining center is used for machining. Therefore, a five-axis machining center positioning jig for machining shaft-type workpieces is required.

The utility model patent with the bulletin number of CN219403380U discloses a five-axis machining center positioning clamp for machining shaft workpieces, which comprises a machining seat and a clamping mechanism; the clamping mechanism comprises a plurality of groups of rotating blocks which are detachably arranged on the first supporting piece, and are movably arranged on the first supporting piece, and clamping pieces which are rotationally connected with the rotating blocks, and also comprises a plurality of groups of cylinders which are detachably arranged on the top surface of the inner side of the processing seat and a plurality of groups of connecting rods which are movably arranged in the through holes; this five machining center positioning fixture is used in axle type work piece processing, cylinder, connecting rod, first support piece, turning block and clamping piece cooperation are used, can carry out spacing centre gripping to the axle type work piece that the size is different, and through bracing piece, second support piece, gag lever post and the clamping piece cooperation that sets up use, can carry out spacing support to axle type work piece, improved axle type work piece's stability, avoided axle type work piece to dismantle the condition of skew when processing, improved axle type work piece processing quality. However, the above patent has the following disadvantages: after the shaft parts are fixedly clamped, the machining center can slightly deform the stress of the shaft parts during the machining of the side parts of the shaft parts, so that the machining precision is affected. Therefore, we propose a clamp with a limiting function.

Disclosure of utility model

Aiming at the problems existing in the prior art, the utility model aims to provide a clamp with a limiting function.

In order to solve the problems, the utility model adopts the following technical scheme:

The utility model provides a fixture with limit function, includes the installation base, the top fixedly connected with of installation base presss from both sides the pipe outward, a plurality of spouts have been seted up to the side of outer clamp pipe, the top surface of installation base just is located the inner chamber fixed mounting of outer clamp pipe and has electric hydraulic stem, electric hydraulic stem's output fixedly connected with backup pad, the side fixedly connected with of backup pad a plurality of L shape mounting panels, the outside fixedly connected with of L shape mounting panel has first electric putter, the output fixedly connected with stripper plate of first electric putter, the top surface fixedly connected with of outer clamp pipe a plurality of mounting base, fixedly connected with second electric putter on the mounting base, the output fixedly connected with rotation base of second electric putter, the tip joint of rotation base has the kicking ball.

As a preferable scheme of the utility model, the side surface of the L-shaped mounting plate is attached to the inner wall of the chute.

As a preferable scheme of the utility model, the top surface of the mounting base is provided with a plurality of step mounting holes.

As a preferable scheme of the utility model, the plurality of second electric push rods and the ejector balls are uniformly arranged in a circle with the central axis of the outer clamping tube as the center of a circle.

As a preferable scheme of the utility model, the plurality of first electric push rods and the extrusion plates are uniformly arranged in a circle with the central axis of the outer clamping tube as the center of the circle.

As a preferable scheme of the utility model, the mounting base, the outer clamping tube and the electric hydraulic rod are concentrically arranged.

Compared with the prior art, the utility model has the advantages that:

According to the fixture with the limiting function, the extruding plate is driven by the first electric push rod to fix the shaft workpiece to be machined, the top balls are driven by the second electric push rods to limit the side parts of the shaft workpiece, so that the shaft workpiece and the outer clamping tube are concentrically arranged, a cutter of a machining center always processes the shaft workpiece above a supporting position of the top balls, the supporting and limiting positions of the shaft workpiece are utilized to support and limit the machining position of the shaft workpiece, the deformation of the machining quality caused by stress of the shaft workpiece is avoided, and the working quality of the fixture with the limiting function is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

fig. 4 is a schematic structural view of a rotating base according to the present utility model.

The reference numerals in the figures illustrate:

1. A mounting base; 2. an outer clamp tube; 3. a chute; 4. an electric hydraulic rod; 5. a support plate; 6. an L-shaped mounting plate; 7. a first electric push rod; 8. an extrusion plate; 9. a mounting base; 10. a second electric push rod; 11. rotating the base; 12. pushing a ball; 13. and a step mounting hole.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

Referring to fig. 1-4, a clamp with limiting function comprises a mounting base 1, wherein an outer clamping tube 2 is fixedly connected to the top of the mounting base 1, a plurality of sliding grooves 3 are formed in the side face of the outer clamping tube 2, an electric hydraulic rod 4 is fixedly mounted on the top face of the mounting base 1 and located in an inner cavity of the outer clamping tube 2, a supporting plate 5 is fixedly connected to the output end of the electric hydraulic rod 4, a plurality of L-shaped mounting plates 6 are fixedly connected to the side face of the supporting plate 5, a first electric push rod 7 is fixedly mounted on the outer side of the L-shaped mounting plates 6, an extrusion plate 8 is fixedly connected to the output end of the first electric push rod 7, a plurality of mounting bases 9 are fixedly connected to the top face of the outer clamping tube 2, a second electric push rod 10 is fixedly mounted on the mounting bases 9, a rotating base 11 is fixedly connected to the output end of the second electric push rod 10, and a top ball 12 is clamped at the end of the rotating base 11.

Specifically, referring to fig. 2, the side surface of the l-shaped mounting plate 6 is attached to the inner wall of the chute 3.

In this embodiment, the strength of the L-shaped mounting plate 6 and the support plate 5 is ensured by the fit between the L-shaped mounting plate 6 and the chute 3.

Specifically, referring to fig. 3, a plurality of stepped mounting holes 13 are formed in the top surface of the mounting base 1.

In this embodiment, the device is mounted on the processing apparatus by the step mounting hole 13 and the bolt fitting.

Specifically, referring to fig. 1 and 4, the plurality of second electric push rods 10 and the top balls 12 are uniformly arranged circumferentially around the central axis of the outer clip tube 2.

In this embodiment, the top ball 12 is guaranteed to uniformly support and limit the side portion of the shaft workpiece.

Specifically, referring to fig. 3, the plurality of first electric push rods 7 and the extrusion plates 8 are uniformly arranged circumferentially around the central axis of the outer clamping tube 2.

In the embodiment, the extruding plate 8 is ensured to fix the shaft workpiece at the middle part of the outer clamping tube 2.

Specifically, referring to fig. 2, the mounting base 1, the outer clip tube 2 and the electric hydraulic rod 4 are concentrically arranged.

In this embodiment, the electric hydraulic rod 4 is ensured to be located in the middle of the top surface of the mounting base 1, and meanwhile, the electric hydraulic rod 4 is also located in the middle of the outer clamping tube 2.

Working principle: when the device is used, firstly, the mounting base 1 is mounted on the machining center through bolts, then, a shaft workpiece to be machined is inserted into the outer clamping tube 2, the bottom end of the shaft workpiece to be machined is in contact with the top surface of the supporting plate 5, a plurality of first electric push rods 7 are started to drive the extrusion plates 8 to move, the shaft workpiece to be machined is fixed through the extrusion plates 8, the shaft workpiece is located in the middle of the top surface of the supporting plate 5, then, a plurality of second electric push rods 10 are started to drive the rotating base 11 and the top ball 12 to move, the side parts of the shaft workpiece are limited through the top ball 12, the shaft workpiece and the outer clamping tube 2 are concentrically arranged, finally, the electric hydraulic rods 4 are started to drive the supporting plate 5 and the shaft workpiece to move up and down, a cutter of the machining center is always located slightly above the supporting position of the top ball 12, and the supporting position of the shaft workpiece is limited through the top ball 12, so that the stress deformation of the shaft workpiece is avoided.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution and the modified concept thereof, within the scope of the present utility model.

Claims (6)

1. The utility model provides a fixture with limit function, includes installation base (1), its characterized in that: the utility model discloses a motor-driven push rod device, including installation base (1), outer clamp pipe (2) of top fixedly connected with of installation base (1), a plurality of spouts (3) have been seted up to the side of outer clamp pipe (2), the top surface of installation base (1) just is located the inner chamber fixed mounting of outer clamp pipe (2) and has electric hydraulic stem (4), the output fixedly connected with backup pad (5) of electric hydraulic stem (4), the side fixedly connected with of backup pad (5) L shape mounting panel (6), the outside fixedly connected with of L shape mounting panel (6) has first electric putter (7), the output fixedly connected with stripper plate (8) of first electric putter (7), the top surface fixedly connected with of outer clamp pipe (2) has a plurality of mounting base (9), fixed mounting has second electric putter (10) on mounting base (9), the output fixedly connected with rotation base (11) of second electric putter (10), the tip joint of rotation base (11) has kicking ball (12).

2. The clamp with limiting function according to claim 1, wherein: the side surface of the L-shaped mounting plate (6) is attached to the inner wall of the chute (3).

3. The clamp with limiting function according to claim 1, wherein: a plurality of step mounting holes (13) are formed in the top surface of the mounting base (1).

4. The clamp with limiting function according to claim 1, wherein: the second electric push rods (10) and the top balls (12) are uniformly arranged circumferentially by taking the central axis of the outer clamping tube (2) as the center of a circle.

5. The clamp with limiting function according to claim 1, wherein: the plurality of first electric push rods (7) and the extrusion plates (8) are uniformly arranged in a circle with the central axis of the outer clamping tube (2) as the center of a circle.

6. The clamp with limiting function according to claim 1, wherein: the mounting base (1), the outer clamping tube (2) and the electric hydraulic rod (4) are concentrically arranged.