CN2680409Y

CN2680409Y - Corner clamp

Info

Publication number: CN2680409Y
Application number: CN 200420042800
Authority: CN
Inventors: 黄慕宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-20
Filing date: 2004-02-20
Publication date: 2005-02-23
Anticipated expiration: 2014-02-20

Abstract

The utility model relates to a corner clamp, of which a base is provided with a directing piece. The directing piece matches with the combination of a piston rod and an inner shaft tube. The periphery of the corner clamp is sheathed with a casing and positioned by locking together. A plurality of adjustment sheets are provided between the casing and a base. Before the utility model is used, the number of adjustment sheets is changed for changing the relative position of one end of the piston rod to the directing piece. When the utility model is used, the turning angles of the piston rod and inner shaft tube can be changed for making a pressing plate which is arranged on the inner shaft tube change the turning angle according to needs.

Description

Corner clamp

Technical field

The utility model relates to a kind of Corner clamp.

Background technology

Generally workpiece is being added man-hour, regular meeting utilizes tool to come holding workpiece, in order to the carrying out of procedure.

See also shown in Figure 12ly, the main composition of these anchor clamps comprises the base of using for the assembling of other assemblies 92; One is installed in this base 92 and has the guiding piece 94 of ball 942; One is assembled in this base 92 and has the piston rod 96 of track 962, and the track 962 of this piston rod 96 is fitted in described ball 942.Central siphon 98 cover groups are in described piston rod 96 peripheries in another, and should in central siphon 98 in order to accepting the oil pressure active force, and drive piston rod 96 in view of the above, central siphon 98 and piston rod 96 synchronous shift and rotation in making; One shell 91 is located on the base 92 and in order to be set in the axial of interior central siphon 98, circulates but its inside is provided with oil circuit fuel feeding press liquid; In 93 groups of one pressing plates are located on the central siphon 98 and pass ends of shell 91, and rotate and to bottom offset with 98 motions of central siphon in this.

These anchor clamps have the motion morphology that impels pressing plate 93 to rotate and suppress downwards.In the time will suppressing workpiece, anchor clamps make pressing plate 93 be begun to rotate towards the tool position by initial position and to bottom offset under the ordering about of oil pressure power, after turning to predetermined angular, pressing plate 93 only again to bottom offset with the compacting workpiece.

Why this pressing plate 93 can rotate and to bottom offset, be because ball 942 relative displacements of track of piston rod 96 962 and guiding piece 94 cause.In other words, working environment can't provide than the large space supply plate and rotate, or in the path of pressing plate 93 rotations barrier is arranged, make in the time of to adjust the rotational angle of pressing plate 93, the worker must change piston rod 96 and change the rotational angle of piston rod 96 with the curvature of utilizing different tracks 962, thereby makes pressing plate 93 can turn to preposition.

Therefore, the disclosed clamp structure of prior art must be equipped with the demand that several piston rod 96 just can meet the different operating environment to the user, needs higher purchase cost relatively.And for the producer, need deposit the piston rod 96 of how different track 962 curvatures and stroke fully to choose for the buyer, inventory cost significantly improves relatively.The more important thing is,, just must make a new piston rod 96, not meet the manufacturing demand if when new stroke demand is arranged.

The utility model content

The purpose of this utility model is to provide a kind of Corner clamp of adjusting the anglec of rotation, and it can change the rotational angle of pressing plate easily under the situation of not changing guiding piece, makes to make and use more realistic demand.

For achieving the above object, technical solution of the present utility model is:

A kind of Corner clamp, it includes:

One base;

One guiding piece, its group is located on the base, and this guiding piece is a hollow member, and offers relative track along wall, and one section corner portion and one section pressing down section that provides to the bottom offset function that the rotational angle function is provided is provided this track;

One piston rod, one end group is provided with one and leads the tip, is located in the guiding piece disposing this end group of leading the tip, and leads the tip and be installed in the track;

Central siphon in one, itself and piston rod suit make up and rotate synchronously with piston rod, and are formed with an oil pressure anchor ring in this on the outer surface of central siphon;

One shell, it is the pipe fitting of a hollow structure, and central siphon is outer and affixed with base in being sleeved on, and should pass outside the shell by interior central siphon one end;

One pressing plate, in order to pin joint in the interior central siphon end of exposing shell;

One group of trimmer, it builds up the one group and is located between shell and the base.

The inside group of central siphon is provided with a spacer in being somebody's turn to do, and this spacer surface offers one group of hole of bead; And piston rod top group is provided with one group of steel ball, and when piston rod and interior central siphon assembly, steel ball is entrenched in the hole of bead.

This piston rod axially be equipped with a back-moving spring.

This base is provided with a protuberance, and the end face of this protuberance is formed with relative edge clipping; And the end face of guiding piece is provided with relative Ka Gou, and this Ka Gou forms with this edge clipping and engages configuration.

The oil pressure anchor ring of central siphon can be subjected to the oil pressure effect by single or double in being somebody's turn to do.

The phase angle in the corner portion start position of this guide tracks and the final position of this corner portion differs 90 degree.

The pressing down section of this guide tracks connects this corner portion, and along guiding piece axially.

After adopting such scheme,,, can change the assembly relative position of piston rod and guiding piece by changing the quantity of trimmer owing to be equipped with one group of trimmer in the anchor clamps described in the utility model; In other words, change the initial position of piston rod rotational motion, and do not change the final position of piston rod rotational motion, thus, the rotational angle of this piston rod changes, and the pressing plate that central siphon and group were located on this interior central siphon in nature can make changes rotational angle; This and prior art compare, and the utility model can be made a plurality of guiding pieces, so there is not the problem of inventory cost.

In addition, on the adjustment of angle changes, select the bigger trimmer of thickness for use, then every change a slice trimmer just can obtain bigger angle change amount, and select the less trimmer of thickness for use, then every change a slice trimmer then can obtain less angle change amount, therefore angle of the present utility model change can trimmer the thickness decision, more easier than the disclosed structure of prior art.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 A is a vertical view of the present utility model;

Fig. 2 B is a structure cutaway view of the present utility model;

Fig. 3 is a stereo appearance figure of the present utility model;

Fig. 4 is an action diagram one of the present utility model;

Fig. 4 A is the vertical view of Fig. 4;

Fig. 5 is an action diagram two of the present utility model;

Fig. 5 A is the vertical view of Fig. 5;

Fig. 6 is an action diagram three of the present utility model;

Fig. 6 A is the vertical view of Fig. 6;

Fig. 7 A is the schematic diagram of another embodiment pressing plate initial angle of the utility model;

Fig. 7 B is that another embodiment of the utility model leads the tip and track relation schematic diagram one;

Fig. 8 is the structural representation of another embodiment of the utility model;

Fig. 8 A is the vertical view of Fig. 8;

Fig. 9 A is the schematic diagram of another embodiment pressing plate final angle of the utility model;

Fig. 9 B is that another embodiment of the utility model leads the tip and track relation schematic diagram two;

Figure 10 is the structural representation one that the utility model acts on two-way oil pressure effect;

Figure 10 A is the vertical view of Figure 10;

Figure 11 is the structural representation two that the utility model acts on two-way oil pressure effect;

Figure 11 A is the vertical view of Figure 11;

Figure 12 is the three-dimensional exploded view of conventional construction.

Among the figure:

10 bases 12 connect hole 14 protuberances

16 edge clippings, 182 first oilholes, 184 second oilholes

20 guiding pieces, 22 tracks, 222 corner portion

224 pressing down sections, 24 card ditches, 30 trimmers

32 perforation, 40 piston rods 42 are led the tip

44 platforms, 46 steel balls, 48 springs

Central siphon 52 oil pressure anchor rings 54 screw threads in 50

56 spacers, 58 hole of beads, 60 shells

62 oil pressure fluid paths, 64 bolts, 70 pressing plates

72 perforation, 74 screw lock elements, 90 anchor clamps

91 shells, 92 bases, 93 pressing plates

94 guiding pieces, 942 balls, 96 piston rods

Central siphon in 962 tracks 98

The specific embodiment

See also shown in Fig. 1 and Fig. 2 A, the 2B, anchor clamps described in the utility model are mainly formed member and are comprised base 10, guiding piece 20, a plurality of trimmer 30, piston rod 40, interior central siphon 50, shell 60 and pressing plate 70.Wherein:

This base 10 offers and connects hole 12 in order to the winding oil pipeline, and these base 10 surfaces are provided with the protuberance 14 of a hollow structure, and the end face of this protuberance 14 is provided with two projectioies and relative edge clipping 16.

This guiding piece 20 is short tubes of a hollow structure, its surface offers two relative tracks 22, and be provided with two relative card ditches 24 in body top system, when 20 groups of guiding pieces are located in the protuberance 14 of described base 10, the edge clipping 16 of base 10 is to engage mutually with card ditch 24, thereby makes guiding piece 20 location and do not rotate.It should be noted that, this track 22 includes corner portion 222 and pressing down section 224, and the start position of this corner portion 222 is at the top of guiding piece 20, and final position and start position differ 90 degree, this pressing down section 224 then is engaged on the final position of corner portion 222, and along guiding piece 20 axially.

These a plurality of trimmer 30 cover groups are in the periphery of described protuberance 14, and offer a plurality of perforation 32 on the anchor ring of each trimmer 30.

One end of this piston rod 40 is equipped with one and leads the tip 42, and its other end forms a platform 44, and group is provided with a plurality of steel balls 46 on this platform 44.In addition, 48 groups of back-moving springs be located at this piston rod 40 axially, and its two ends are led the restriction of the tip 42 and platform 44 respectively, thereby spring 48 is not deviate from.When the combination of this piston rod 40 and back-moving spring 48 is assembled in the axial space of described guiding piece 20, this leads the corner portion 222 that the tip 42 just is arranged in this track 22.

Should interior central siphon 50 be bodys of a hollow structure, one end outer surface be provided with oil pressure anchor ring 52, and the outer surface system of the other end is provided with screw thread 54.Secondly should in central siphon 50 assembly one spacer 56 be arranged, and this spacer 56 is provided with the hole of bead 58, when interior central siphon 50 cover groups during in piston rod 40 axial, the steel ball 46 that is positioned at piston rod 40 tops can be fastened togather with the hole of bead 58 of described spacer 56.

This shell 60 is one to have the hollow tube of big thickness, and inner wall surface thereof system is provided with oil pressure fluid path 62.In 60 groups on this shell is located at during central siphon 50 axial, can cooperate a plurality of bolts 64 with these shell 60 lockings on base 10, and the bottom surface of this shell 60 is pressed against on this trimmer 30.An end of central siphon 50 can pass shell 60 in being somebody's turn to do in addition.But above-mentioned oil pressure fluid path 62 fuel feeding press liquids flow in the spacing passage of shell 60 inner faces and interior central siphon 50 outer surfaces.

One end of this pressing plate 70 offers a perforation 72, and an end of interior central siphon 50 can pass this perforation 72 and cooperate a screw lock element 74 sealed, makes this pressing plate 70 and should combine by interior central siphon 50.

See also shown in Figure 3ly, after above-mentioned each combination of components, pressing plate 70 can be positioned at the top of shell 60, and a plurality of trimmer 30 is fitted between shell 60 and the base 10.

See also shown in Fig. 4, the 4A, when on the oil pressure anchor ring 52 of oil pressure liquid effects at interior central siphon 50, impel then that central siphon 50 moves downward in this, and since piston rod 40 combine with interior central siphon 50, so this piston rod 40 also can be followed together to bottom offset.

Because 42 groups at the tip of leading of piston rod 40 is located in the track 22 of guiding piece 20, so leading the tip 22, this will move along the track of track 22, in other words, this is led the tip 42 and can rotate along the track of corner portion 222, impels piston rod 40 to rotate simultaneously.This piston rod 40 has a plurality of steel balls to engage with 50 of interior central siphons again, and therefore interior central siphon 50 also can rotate thereupon.

Description by above-mentioned motion state as can be known, under the action of oil pressure, interior central siphon 50 will produce to bottom offset and rotate two kinds of motion states, and will be relative, the pressing plate 70 in group is located on the central siphon 50 can rotate and to bottom offset.

See also shown in Fig. 5, the 5A, under the continuous action of oil pressure, this leads the final position that the tip 42 can continue to move to corner portion 222, and this moment, pressing plate 70 also rotated 90 degree by original position.

See also shown in Fig. 6, the 6A, when oil pressure active force continuous action, this is led the tip 42 beginnings and moves in pressing down section 224, and this moment is because pressing down section 224 is a straight path, so piston rod 40, interior central siphon 50 and pressing plate 70 all move downward as straight line.Just can provide suppression to workpiece thus.And above-mentioned enforcement state, pressing plate 70 has rotated 90 degree.

See also Fig. 7 B, shown in Figure 8, when using the quantity of preceding change trimmer 30 (making a slice into by two among the figure).After the assembling, this initial position of leading the tip 42 can drop within the corner portion 222, and this moment, pressing plate 70 rotated an angle (shown in Fig. 7 A) in advance.In the oil pressure active force acts on the oil pressure anchor ring 52 of central siphon 50 time, piston rod 40 and in promptly rotatable, the displacement of central siphon 50.See also shown in Fig. 8, the 8A, move to pressing down section 224 when terminal when leading the tip 42, pressing plate can provide suppression power.And comparison diagram 7A, 7B and Fig. 9 A, 9B, can find pressing plate 70 move by original position turn to the final position angle less than 90 degree.

By above explanation as can be known, the utility model is by changing the quantity of trimmer 30, just can change the original position that piston rod 40 is positioned at track 22, therefore under the constant condition in the final position that pressing plate 70 rotates, pressing plate 70 can obtain the adjustment of angle really by the change of trimmer 30 quantity.Compare with prior art, the utility model can be made a plurality of guiding pieces 20, so there is not the problem of inventory cost, and on the adjustment of angle changes, select the bigger trimmer of thickness 30 for use, then every change a slice trimmer 30 just can obtain bigger angle change amount, and select the less trimmer of thickness 30 for use, then every change a slice trimmer 30, then can obtain less angle change amount, therefore angle of the present utility model change can trimmer 30 the thickness decision, more easier than the disclosed structure of prior art.

In addition, above-mentioned clamp structure reaches " two moving " because of the oil pressure binding mode is distinguished into " single action ", and wherein single action is meant that the oil pressure anchor ring 52 of central siphon 50 in this only is subjected to the oil pressure effect with the one side, when replying initial position then by the restoring force of back-moving spring 48.Anchor clamps as for " two moving " structure, see also shown in Figure 10,10A and Figure 11, the 11A, its anchor clamps of mainly forming member and single action structure are suitable, have base 10, guiding piece 20, a plurality of trimmer 30, piston rod 40, interior central siphon 50, shell 60 and pressing plate 70 equally.Wherein, this base 10 is provided with first oilhole 182 and second oilhole 184, but these first oilhole, 182 fuel feeding press liquids enter in the anchor clamps, and act on oil pressure anchor ring 52 tops, central siphon 50 and piston rod 40 are to bottom offset in making.Otherwise when oil pressure liquid entered in the anchor clamps by second oilhole 184, it acted on this oil pressure anchor ring 52 belows, thereby made this interior central siphon 50 and piston rod 40 to top offset.In other words, the anchor clamps of two moving structures, be meant a kind of in oil pressure anchor ring 52 both sides of central siphon 50 all be subjected to the oil pressure effect and reach the anchor clamps of displacement purpose.

For the anchor clamps of two oil pressure effects, can change the rotational angle of pressing plate 70 equally by the trimmer 30 of assembly varying number.

Claims

1, a kind of Corner clamp is characterized in that these anchor clamps include:

One base;

2, Corner clamp as claimed in claim 1 is characterized in that: inside group of central siphon is provided with a spacer in this, and this spacer surface offers one group of hole of bead; And piston rod top group is provided with one group of steel ball, and when piston rod and interior central siphon assembly, steel ball is entrenched in the hole of bead.

3, Corner clamp as claimed in claim 1 is characterized in that: this piston rod axially be equipped with a back-moving spring.

4, Corner clamp as claimed in claim 1 is characterized in that: this base is provided with a protuberance, and the end face of this protuberance is formed with relative edge clipping; And the end face of guiding piece is provided with relative Ka Gou, and this Ka Gou forms with this edge clipping and engages configuration.

5, Corner clamp as claimed in claim 1 is characterized in that: oil pressure anchor ring single face of central siphon is subjected to the oil pressure effect in this.

6, Corner clamp as claimed in claim 1 is characterized in that: the oil pressure anchor ring of central siphon is two-sided in this is subjected to the oil pressure effect.

7, Corner clamp as claimed in claim 1 is characterized in that: the phase angle in the corner portion start position of this guide tracks and the final position of this corner portion differs 90 degree.

8, Corner clamp as claimed in claim 1 is characterized in that: the pressing down section of this guide tracks connects this corner portion, and along guiding piece axially.