CN202491081U

CN202491081U - Workpiece compacting device

Info

Publication number: CN202491081U
Application number: CN2012200025700U
Authority: CN
Inventors: 邬波涛
Original assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Current assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Priority date: 2012-01-05
Filing date: 2012-01-05
Publication date: 2012-10-17
Anticipated expiration: 2022-01-05

Abstract

The utility model relates to a workpiece compacting device which comprises a compacting arm and a piston rod that is pin-jointed with one end of the compacting arm and drives the compacting arm to move. The workpiece compacting device is characterized by further comprising a fixing stand; inverted U-shaped guide grooves are disposed on the fixing stand; a distribution direction on two sides of the guide grooves is consistent with a motion direction of the piston rod; the top of each guide groove is designed to be inclined; a guide rod is arranged in the center of the compacting arm; and the guide rod can be movably inserted into the guide grooves. Compared with the prior art, the workpiece compacting device can limit a motion track of the compacting arm through cooperation of the guide rod and the guide grooves, can satisfy a requirement about force for compacting a workpiece, can enlarge an opening angle of the compacting arm, allows the workpiece to be taken and placed conveniently, and is compact in structure, small in size and low in cost. According to the preferred scheme, a structure between the compacting arm and the fixing stand is designed to be more optimized, thereby further minimizing the size of the workpiece compacting device and enables the compacting device to be conveniently arranged.

Description

A kind of workpiece pressuring clamping device

Technical field

The utility model relates to a kind of workpiece pressuring clamping device.

Background technology

When workpiece is processed on lathe, need be to the workpiece clamping and positioning, with the precision of convenient processing and assurance processing.Existing workpiece pressuring clamping device generally includes the clamping arm that is driven by piston rod, and this clamping arm rotates around pivot pin, thereby compresses or unclamp workpiece.Because the idle space on the machining tool is certain, all smaller usually, this has just limited the anglec of rotation of clamping arm, and the anglec of rotation of clamping arm directly has influence on the easy degree that product picks and places.The open angle of clamping arm also receives the qualification of the stroke and the pivot pin desired location of piston cylinder simultaneously; Pivot pin is near more from point of application position, and open angle will be big more, and requisite space is less relatively, but the thrust of clamping arm will correspondingly reduce simultaneously; And if the intensifying cylinder stroke improves the thrust of clamping arm, guarantee the open angle of clamping arm simultaneously, then the volume of whole hold down gag will strengthen, not only raise the cost, and with machining tool between cooperate also relatively difficulty.

Summary of the invention

The utility model technical problem to be solved is that the present situation to prior art provides a kind of and conveniently picks and places workpiece, volume is little, cost is low and can influence the workpiece pressuring clamping device of thrust.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this workpiece pressuring clamping device; Comprise clamping arm, be articulated and drive the piston rod that this clamping arm moves with an end of said clamping arm; It is characterized in that this workpiece pressuring clamping device also comprises holder; Said holder is provided with the gathering sill that is " ∩ " shape structure, and the both sides distribution arrangement of this gathering sill is consistent with the direction of motion of piston rod, and top design becomes skewed; The middle part of said clamping arm is provided with guide post, and this guide post can be plugged in the described gathering sill movably.

In order further to reduce the volume of this hold down gag, preferably, described holder has and the corresponding to through hole of the direction of motion of said piston rod, and described gathering sill is arranged on the relative two side of this through hole; Described clamping arm is contained in the described through hole, and makes the compressed part of clamping arm expose to through hole, and the two ends of said guide post are plugged in respectively in the gathering sill on the said through hole two lateral walls.

In the above-mentioned scenarios, described clamping arm can be " L " shape structure, and the long-armed of said clamping arm is contained in the described through hole, and the galianconism of said clamping arm is described compressed part.

The long-armed part of said clamping arm all is contained in the described through hole, and the port position of said through hole is provided with corresponding to described compressed part, and convenient said clamping arm rotates and the breach of spacing said clamping arm rotational angle.

Compared with prior art, the utility model limits the movement locus of clamping arm, the requirement of power in the time of can either satisfying workpiece pressing through the cooperation of guide post and gathering sill; Can enlarge the open angle of clamping arm again, make things convenient for picking and placeing of workpiece, compact conformation; Volume is little, and cost is low; And the structural design between clamping arm and the holder is optimized more in the preferred version, has further reduced the volume of this workpiece pressuring clamping device, makes things convenient for the layout of this hold down gag.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model embodiment assembly structure;

Fig. 2 is the schematic perspective view of the utility model embodiment decomposition texture;

Fig. 3 is the perspective view of holder among the utility model embodiment;

Sketch map when Fig. 4 moves to peak for guide post among Fig. 1 in gathering sill;

Fig. 5 is displaced downwardly to the sketch map that clamping arm is opened to maximum angle for guide post among Fig. 4 from the second limit groove.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

To shown in Figure 3, this workpiece pressuring clamping device comprises like Fig. 1:

Clamping arm 1 is " L " shape structure, and a long-armed end of clamping arm and the piston rod of piston cylinder 31 link together through axle, and clamping arm 1 can rotate around this axle.Clamping arm long-armed 12 on also be provided with guide post 11, the two ends of this guide post expose to the both sides of clamping arm 1.

Holder 2, cross section are the rectangular ring structure, and the center has longitudinal hole 21, and through hole 21 is respectively equipped with gathering sill 22 on the relative two side, and two relative in addition sidewalls are provided with breach 23.The galianconism 13 of clamping arm exposes to through hole 21, and the long-armed of clamping arm all is contained in the through hole 21.Gathering sill 22 is " ∩ " shape structure roughly; The first limit groove 221 of gathering sill 22 and the second limit groove 222 are the dual-side groove; Both are parallel to each other; And the length of the first limit groove 221 is less than the length of the second limit groove 222, and top sides groove 223 is from the line tilt on the second limit groove 222 of the first limit groove 221, and the corner is a rounding off.The two ends of guide post 11 are contained in respectively in two gathering sills 22.In the present embodiment, holder 2 is arranged on the cylinder body 32 of piston rod.

During use, the overhanging motion of piston rod promotes the long-armed of clamping arm and moves up, and guide post moves to position as shown in Figure 4 from the first limit groove through the top sides groove in gathering sill; Piston rod bounces back then; Guide post moves down in the second limit groove, and the galianconism of clamping arm is opened to maximum angle, sees also shown in Figure 5; At this moment, put into workpiece; The overhanging again back of piston rod retraction drives the clamping arm counter motion then, when piston rod resets, and the lucky workpiece pressing of clamping arm.

Claims

1. workpiece pressuring clamping device; Comprise clamping arm, be articulated and drive the piston rod that this clamping arm moves that it is characterized in that this workpiece pressuring clamping device also comprises holder, said holder is provided with the gathering sill that is " ∩ " shape structure with an end of said clamping arm; The both sides distribution arrangement of this gathering sill is consistent with the direction of motion of piston rod; And it is skewed that top design becomes, and the middle part of said clamping arm is provided with guide post, and this guide post can be plugged in the described gathering sill movably.

2. workpiece pressuring clamping device according to claim 1 is characterized in that described holder has and the corresponding to through hole of the direction of motion of said piston rod, and described gathering sill is arranged on the relative two side of this through hole; Described clamping arm is contained in the described through hole, and makes the compressed part of clamping arm expose to through hole, and the two ends of said guide post are plugged in respectively in the gathering sill on the said through hole two lateral walls.

3. workpiece pressuring clamping device according to claim 1 and 2 is characterized in that described clamping arm is " L " shape structure, and the long-armed of said clamping arm is contained in the described through hole, and the galianconism of said clamping arm is described compressed part.

4. workpiece pressuring clamping device according to claim 3; The long-armed part that it is characterized in that said clamping arm all is contained in the described through hole, and the port position of said through hole is provided with corresponding to described compressed part, and convenient said clamping arm rotates and the breach of spacing said clamping arm rotational angle.