A kind of rotary fixture device
Technical field
The utility model relates to the digital control processing field, particularly relates to a kind of device of the rotary fixture for machine tooling.
Background technology
In the machine tooling field, often need to carry out to workpiece the processing of multiterminal face, multi-angle, multiple operation, because the machine direction of equipment such as boring, mill, cut, cut is certain, this will repeatedly clamp workpiece.The processing mode that face of this every processing or angle will clamp workpiece again obviously not only increases and has had a strong impact on working (machining) efficiency, all there is certain error owing to clamping the determined center line of workpiece at every turn simultaneously, the final like this product quality processed just is difficult to assurance, and the technical staff has developed the fitting device with spinfunction for this reason.
As Chinese patent literature CN2843734Y discloses a kind of hydraulic rotating chuck, it mainly comprises base plate, one end of base plate is equipped with bearing, in this making, rotating shaft is installed, the other end of base plate is equipped with NC dividing head, the side that described bearing is relative with described NC dividing head is separately installed with the first carriage, the second carriage, can be arranged at the fixture template that workpiece adapts on this first carriage two plate faces relative with the second carriage, this first carriage, the second carriage are clamped workpiece by hydraulic-driven.The first carriage in this patent documentation and the second carriage can be with the rotating in a circumferential direction of index dial, and then realize the processing to workpiece multiterminal face, multi-angle.Compare and clamp technique in the past, the working (machining) efficiency of this technical scheme increases, and product percent of pass is corresponding improvement also, but this clamp body can only clamp a workpiece at every turn, and for large batch of workpiece to be processed, efficiency is still not high enough, is difficult to meet Production requirement.
The utility model content
For this reason, the technical problems to be solved in the utility model is that existing fitting device once can only be processed a workpiece, and working (machining) efficiency is lower, and a kind of two workpiece of simultaneously processing are provided, thereby significantly improves the rotary fixture device of working (machining) efficiency.
For achieving the above object, the utility model is by the following technical solutions:
A kind of rotary fixture device, comprise base and the bearing be oppositely arranged on described base and index dial; The side that described bearing is relative with described index dial is respectively equipped with the frock connecting lateral plate, and two described frock connecting lateral plates frock by eccentric setting connects base plate and is fixedly connected with, and described frock connecting lateral plate is rotatable under the control of described index dial; Be provided with two groups of fixtures between two described frock connecting lateral plates.
In above-mentioned rotary fixture device, described fixture comprises that being fixedly installed on the frock that described frock connects on base plate determine plate, and determines plate with described frock and coordinate the frock of holding workpiece to move plate; The moving plate of described frock can move along the close/direction of away from described frock, determining plate under the drive of drive unit.
In above-mentioned rotary fixture device, described frock connects the position corresponding with holding workpiece on base plate and offers the machining hole that enters and workpiece is processed for process tool.
In above-mentioned rotary fixture device, described drive unit is cylinder, and two described cylinders are fixedly installed on respectively the outside of described bearing and described index dial, and the drive end of described cylinder drives described frock to move plate.
In above-mentioned rotary fixture device, described bearing and described index dial form through hole on the position corresponding with described air cylinder driven end, be provided with connecting rod in axial sliding in described through hole, an end of described connecting rod is connected with the drive end of described cylinder, and the other end is connected with the moving plate of described frock.
In above-mentioned rotary fixture device, described fixture also comprises clamping, described clamping is put together by two members, and it is detachable fixing respectively that two described members and described frock are moved plate, described frock is determined plate, the cavity volume that described clamping has holding workpiece and adapts with the workpiece profile.
In above-mentioned rotary fixture device, the medial surface that the moving plate of described frock and described frock determine plate has several the first detents, and the described member of described clamping and described frock are moved plate, described frock and determined to be provided with accordingly several the second detents on face that plate fits; Described the first detent and described the second detent amalgamation form locating hole, are suitable for inserting locating piece in described locating hole.
In above-mentioned rotary fixture device, described frock connects base plate and is provided with the guide rail that the moving plate of the described frock of guiding slides.
In above-mentioned rotary fixture device, the dovetail type groove of described guide rail for offering along the moving plate direction of motion of described frock, the shape matched with described dovetail type groove is arranged in the bottom of the moving plate of described frock.
In above-mentioned rotary fixture device, described index dial is the computer numerical controlled index dial of CNC.
Technique scheme of the present utility model has the following advantages compared to existing technology:
1. rotary fixture device of the present utility model arranges two groups of fixtures between two frock connecting lateral plates, can clamp simultaneously and process two workpiece, has so just greatly improved working (machining) efficiency.
2. rotary fixture device of the present utility model, wherein frock connects the position corresponding with holding workpiece on base plate and offers the machining hole that enters and workpiece is processed for process tool.By this machining hole is set, process tool just can pass the bottom of this machining hole to workpiece, and the side that workpiece is covered by frock connection base plate is processed, thereby has increased the quantity of the end face processed of workpiece, and working (machining) efficiency is further.
3. rotary fixture device of the present utility model, wherein fixture also comprises clamping, and clamping is put together by two members, and two members and the moving plate of frock, frock determine plate and are detachably fixed respectively, the cavity volume that clamping has holding workpiece and adapts with the workpiece profile.Fixture of the present utility model can have according to the workpiece setting of different profiles the clamping of different cavity volume shapes, increase the contact area of fixture and workpiece, what workpiece was clamped is more firm, avoid workpiece to occur loosening because of vibrations in process, improve crudy, enlarged the scope of application of the utility model fitting device.
4, rotary fixture device of the present utility model, the medial surface that wherein the moving plate of frock and frock determine plate has several the first detents, and clamping member and frock are moved plate, frock and are determined to be provided with accordingly several the second detents on face that plate fits; The first detent and the second detent amalgamation form locating hole, are suitable for inserting locating piece in locating hole.Said structure design, two member positions that can make clamping accurately and correspondence as one man determine plate and be fixed together with the moving plate of frock, frock respectively, thereby guarantee clamping can be accurately, holding workpiece reliably, the machining accuracy of assurance whole workpiece.
5, rotary fixture device of the present utility model, connect on base plate and be provided with and the guide rail that guides the moving plate of frock to slide in frock, thereby guarantee the moving plate of frock to frock, determine plate move and clamp the process of workpiece in can not be offset, and then raising clamps efficiency, assurance clamps firm stable.
6, rotary fixture device of the present utility model, wherein index dial adopts the computer numerical controlled index dial of CNC, in advance procedure is inputted to computer before processing, in processing, index dial can automatically complete rotation and workpiece is processed under computer is controlled like this, has improved automaticity and machining precision.
The accompanying drawing explanation
For the content that makes utility model is more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Structural representation when Fig. 1 is the utility model rotary fixture device holding workpiece;
Fig. 2 is the cutaway view of the utility model rotary fixture device;
Fig. 3 is the structural representation of the second detent on the clamping member in the utility model rotary fixture device;
Fig. 4 is the structural representation that in the utility model rotary fixture device, frock is determined the another kind of embodiment of plate.
In figure, Reference numeral is expressed as:
The 1-base, the 2-bearing, the 3-index dial, 4-frock connecting sideplate, the 5-frock connects base plate, and the 6-frock is moved plate, the 61-connecting rod, the 7-frock is determined plate, 8-cylinder, 9-guide rail, 10-clamping, 121-the first detent, 122-the second detent.
The specific embodiment
As shown in Figure 1-2, be the preferred embodiment of the utility model rotary fixture device.
Described rotary fixture device comprises base 1 and the bearing 2 be oppositely arranged on described base 1 and index dial 3; Described index dial 3 is the computer numerical controlled index dial of CNC in the present embodiment.The side that described bearing 2 is relative with described index dial 3 is respectively equipped with the frock of 4, two described frock connecting lateral plates 4 of frock connecting lateral plate by eccentric setting and connects base plate 5 and be fixedly connected with, and described frock connecting lateral plate 4 is rotatable under the control of described index dial 3; Be provided with two groups of fixtures between two described frock connecting lateral plates 4.
In the present embodiment, described fixture comprises that being fixedly installed on described frock connects frock on base plate 5 and determine plate 7, determine plate 7 with described frock and coordinate the frock of holding workpiece to move plate 6 and clamping 10.The moving plate 6 of described frock under the drive of drive unit can along near or away from the direction that described frock is determined plate 7, move.Two described frocks in two groups of described fixtures are determined plate 7 and are fixed on side by side dorsad the middle part that described frock connects base plate 5, can coordinate and clamp workpiece with the moving plate 6 of the described frock of a corresponding side respectively.Described frock connects base plate 5 and is provided with the guide rail 9 that the moving plate 6 of the described frock of guiding slides, the dovetail type groove that described guide rail 9 in the present embodiment is offered along moving plate 6 directions of motion of described frock for the surface that connects base plate 5 in described frock, the shape matched with described dovetail type groove is arranged in the bottom of the moving plate 6 of described frock.And described frock connects the position corresponding with holding workpiece on base plate 5 and offers the machining hole that enters and workpiece is processed for process tool.
Described drive unit is cylinder 8, two described cylinders 8 are fixedly installed on respectively the outside of described bearing 2 and described index dial 3, the drive end of described cylinder 8 drive the moving plate 6 of described frock to described frock determine plate 7 near or away from, thereby realization clamps or dismantles workpiece.Described bearing 2 and described index dial 3 form through hole on the position corresponding with described cylinder 8 drive ends, be provided with connecting rod 61 in axial sliding in described through hole, one end of described connecting rod 61 is connected with the drive end of described cylinder 8, and the other end is connected with the moving plate 6 of described frock.Described connecting rod 61 is set to be convenient to described cylinder 8 and to promote the moving plate 6 of described frock and described frock and determine plate 7 and coordinate and clamp workpiece.
Again as shown in Figure 1, described clamping 10 is put together by two members, and it is detachable fixing respectively that two described members and described frock are moved plate 6, described frock is determined plate 7, the cavity volume that described clamping 10 has holding workpiece and adapts with the workpiece profile.The fixture of the present embodiment can have according to the workpiece setting of different profiles the clamping of different cavity volume shapes, in Fig. 1, illustrated clamp the threeway series products (another opening of this product below, in figure, fail to illustrate) structural representation, for forming the cavity volume adapted with this product design after described clamping 10 amalgamations that clamp this product, Workpiece clamping is in described cavity volume.Thisly clamp the contact area that mode can increase described clamping 10 and described workpiece, what described workpiece was clamped is more firm, has avoided workpiece to occur looseningly because of vibrations in process, and then affects crudy.
As Figure 2-3, the medial surface that the moving plate 6 of described frock and described frock determine plate 7 has several the first detents 121, and the described member of described clamping 10 and described frock are moved plate 6, described frock and determined to be provided with accordingly several the second detents 122 on face that plate 7 fits; Described the first detent 121 forms locating hole with described the second detent 122 amalgamations, is suitable for inserting locating piece in described locating hole.
Details are as follows to utilize the detailed process that rotary fixture device of the present utility model processed special-shaped workpiece:
1, fixedly clamping
Two described members of the described clamping 10 that cavity volume shape and described special-shaped workpiece profile are adapted determine plate 7 with the moving plate 6 of described frock, described frock respectively and are fixedly mounted.At first, the moving plate 6 of described the second described frock of detent 122 aligning on described member, described frock are determined to described the first detent 121 on plate 7, thereby formed several described locating holes; Then by the described locating hole of several described locating pieces horizontal and vertical insertions of difference; After location, use screw that described member and the moving plate 6 of described frock, described frock are determined to plate 7 and carried out respectively fastening.
2, clamp workpiece
A workpiece to be processed is placed in to described frock and determines in the cavity volume of described clamping 10 of plate 7 one sides, operation and this side cylinder 8 promote described frock and move plate 6 and determine plate 7 with described frock and coordinate clamping work pieces; In like manner, by next Workpiece clamping in addition a pair ofly stating the moving plate 6 of frock, described frock is determined between plate 7.
3, processing work
Operation index dial 3 drives described frock connecting lateral plate 4 and 5 rotations of described frock connection base plate, and clamped workpiece is rotated to the end face that needs processing and locates simultaneously, and then the operating numerical control lathe is processed workpiece.
4, dismounting workpiece
After completion of processing, at first withdrawing, then operate cylinder 8 and shrink, and takes off successively the workpiece of the completion of processing in clamping 10.
According to above-mentioned steps, cycling is processed the next group workpiece.
Certainly, described clamping 10 is set is mainly to have distinctive appearance, be not easy to clamp fastening workpiece for some for above embodiment.In other embodiments, for some, there is the workpiece of regular shape, as the workpiece of rectangular structure, can be directly by described frock, determine plate 6 and described frock and determine plate 7 and coordinate and clamp, and without described clamping 10 is set in addition.
In other embodiment, it can be also integral structure that described frock is determined plate 7, and as shown in Figure 4, the described frock of integral type is determined plate 7 and is fixedly installed on the middle part that described frock connects base plate 5, can determine plate 6 with described frock equally and coordinate and clamp workpiece.
In other embodiment, drive unit can also be selected the devices such as fluid cylinder, electric cylinder.
In other embodiment, guide rail 9 can be also to connect in frock the projection that the cross section the surface of base plate 5 offered along moving plate 6 directions of motion of frock is dovetail type, and the bottom of the moving plate 6 of described frock is provided with the dovetail groove matched with the projection of described dovetail type.The concrete shape of this inner guide rail 9 is without concrete setting, it is apparent to those skilled in the art that guide rail 9 herein just plays the effect of guiding, little with the relation of the specific constructive form of this guide rail 9.
In other embodiment, described clamping 10 is determined plate 7 and can also be adopted other dismountable mode to be fixed with the moving plate 6 of described frock, described frock.Yet, if be applied to the processing of single product, also can make the moving plate 6 of described clamping 10 and described frock, described frock determine that plate 7 is fixed all the time or one-body molded.
The above-mentioned specific embodiment just is explained in detail the technical solution of the utility model; the utility model has more than and only is confined to above-described embodiment; those skilled in the art should be understood that; the above-mentioned principle of every foundation and the improvement of spirit on the utility model basis, substitute, all should be within protection domain of the present utility model.