CN200963758Y - Machine tool fixture - Google Patents
Machine tool fixture Download PDFInfo
- Publication number
- CN200963758Y CN200963758Y CN 200620148605 CN200620148605U CN200963758Y CN 200963758 Y CN200963758 Y CN 200963758Y CN 200620148605 CN200620148605 CN 200620148605 CN 200620148605 U CN200620148605 U CN 200620148605U CN 200963758 Y CN200963758 Y CN 200963758Y
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- CN
- China
- Prior art keywords
- screw rod
- clamping element
- base
- anchor clamps
- supporter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Jigs For Machine Tools (AREA)
Abstract
The utility model provides a machine tool fixture, which comprises compression components, a base and a screw rod connected and fixed with a lower end locking component. The screw rod and the compression component is threaded and coupled. The screw rod and the base in kinetic connection enable the screw rod not to detach the base for the upward movement through the lower end locking component. In the machine tool fixture provided in the utility model, the base and the compression component are connected through a screw rod. Thus only by fastening the screw, the compression component can be driven through the screw transmission formed from the threaded and coupled linkage, so that the purpose of clamping the work piece can be achieved. The fixture has compact structure and high stiffness, which is easy to use at the same time.
Description
Technical field
The utility model relates to a kind of anchor clamps, relates in particular to a kind of jig that workpiece is carried out clamping and positioning at universal machine tools that is applicable to.
Background technology
In mechanical processing process,, need guarantee that workpiece installs on lathe in order to guarantee the machining accuracy of workpiece.What is called installs, and comprises two aspects, is the location on the one hand, promptly determines the tram of workpiece with respect to cutter on lathe; Be to clamp on the other hand, promptly on the position of having had good positioning, workpiece clamped reliably.To the location and the clamping of workpiece, be called the clamping of workpiece.The quality of clamping workpiece and operability directly influence the precision and the production efficiency of workpiece machining, thereby very important.
In general, the method for clamping workpiece mainly contains two kinds.A kind of is centering clamping method, and it is simple, flexible that this method is implemented, but precision is not high, and productivity ratio is lower, generally is used for not high single-piece of required precision and small lot batch manufacture; Another kind is widely used to be anchor clamps clamping method, this method can accurately, promptly be located workpiece, thereby make the correct position of the relative cutter of workpiece, lathe and stablize, guarantee higher processing precision, easy in installation process, laborsaving, safety can be saved non-cutting time, improves working conditions, improves working (machining) efficiency, be reduced production costs simultaneously.Therefore, in machining, be extensive use of various jigs, both be used for large-scale production, also be used for single-piece and small lot batch manufacture.
In universal machine tools, the direction of jig development is flexibility and versatility, to be used for the various different workpieces of clamping, is applicable to all kinds of machinings, also requires fixture operation easy simultaneously, to reduce the time of machining, enhances productivity.In order to satisfy the requirement of jig flexibility and versatility, in jig, often comprise a plurality of module components, for example: as the positioning screw of keeper or base, as the pressing plate of compressing member or briquetting etc., these module components all have degree of precision and wearability, can be assembled into nipper.
Disclose a kind of jig among the CN1171319A, as shown in Figure 1, described anchor clamps comprise: a fastening screw 57, and this fastening screw 57 is connected in the workbench 50 of lathe; A fixture 70; With a pad 60, also comprise a height regulating part 40.In these anchor clamps, pad 60 longitudinally groove slides on a pair of main body of fixture 70 and shifts to fastening screw 57, and clamp nut is installed on the fastening screw 57 with fixation workpiece 400, but also comprises height regulating part 40, in order to regulate the height of main body.
During this anchor clamps work, the front end of fixture 70 is pressed on the workpiece 400, the middle part of fixture 70 cooperates with fastening screw 57, and the rear portion of fixture cooperates with height regulating part 40, and does not have annexation closely between fastening screw 57 and the described fixture 70.During workpiece pressing, fixture 70 is compressed downwards by turning clamp nut.Thereby, fastening screw 57, fixture 70 and the 40 independent dispersions of height regulating part, thus cause whole anchor clamps rigidity relatively poor; Simultaneously when regulating the application height of these anchor clamps, need to regulate simultaneously the relative position relation between the pad 60 of height regulating part 40 and fastening screw 57, adjustment process is loaded down with trivial details and complicated, makes that the anchor clamps operating efficiency is lower, can not satisfy the requirement that anchor clamps clamp fast.
The utility model content
The purpose of this utility model is to overcome the defective of the relatively poor and complex operation of rigidity in the jig of prior art, and provides a kind of rigidity jig higher and easy and simple to handle.
The utility model provides a kind of jig, wherein, described anchor clamps comprise clamping element, base and are fixedly connected with the screw rod of the locked element in lower end, described screw rod is that screw thread pair connects with described clamping element, and described screw rod and described base be movable to be connected and make described screw rod can not break away from described base by described locked element and move up.
In the anchor clamps that the utility model provides, the base of anchor clamps is connected in the workbench of lathe, and screw rod connects with this base is movable, described screw rod also connects with the clamping element screw thread pair simultaneously, so only need to turn described screw rod and just can drive clamping element, the purpose of workpiece thereby realization is fixedly clamped by connecting the worm drive that form by screw thread pair.The jig that the utility model provides connects base and clamping element by a screw rod, and compact conformation has higher rigidity, and is simultaneously easy and simple to handle.
Description of drawings
Fig. 1 is the in running order view of the disclosed jig of CN1171319A;
Fig. 2 is the overall perspective view of the jig that provides of the utility model;
Fig. 3 is the decomposition diagram of the jig that provides of the utility model;
Fig. 4 is the in running order view of jig that the utility model provides;
Fig. 5 is the perspective view of the supporter of clamp body in the jig that provides of the utility model;
Fig. 6 is the perspective view of the clamping element of clamp body in the jig that provides of the utility model;
Fig. 7 is the broken-open perspective view of base in the jig that provides of the utility model;
The specific embodiment
As shown in Figures 2 and 3, the jig 100 that the utility model provides comprises base 10, clamping element 20 and the screw rod 30 that is fixedly connected with the locked element 31 in lower end, wherein, described screw rod 30 and clamping element 20 be for screw thread pair connects, and described screw rod 30 and base 10 be movable to be connected and make described screw rod 30 can not break away from described base 10 by the locked element 31 in described lower end and move up.
In the jig that the utility model provides, screw rod 30 connects for screw thread pair with clamping element 20, and the formation worm drive, described screw rod 30 also activity is connected in base 10, be fixedly connected with simultaneously the locked element 31 in lower end, thereby stop screw rod 30 under the screw pair effect and move up in the lower end of screw rod 30.Thereby, only need turn screw rod 30 and just can drive clamping element 20 and move, thereby realize the purpose of workpiece pressing along described screw rod 30.
Preferably, described anchor clamps 100 also comprise supporter 21, and described clamping element 20 is between at least a portion of base 10 and supporter 21, and described screw rod 30 passes this part and the clamping element 20 of supporter 21.Be fixedly connected with the locked element 32 in upper end in the upper end of screw rod 30, and the locked element 32 in described upper end is positioned at the top of supporter 21, thereby prevents screw rod 30 downward plaies.
The locked element 32 in described upper end can be identical or inequality with the locked element 31 in lower end, but the two all extremely cooperates with described screw rod 30, the possibility that does not have relative motion, this matching relationship can be realized by multiple mechanical attachment, such as, locked element includes but not limited to following mode with the dead implementation that cooperates between the screw rod 30: locked element can be nut, itself is dead the cooperation between nut and the screw rod; Locked element can be a nut, by draw-bore on nut and screw rod, and passes the locked location of this pin-and-hole with straight pin, or destroys the screw thread pair between nut and the screw rod and form dead the cooperation, for example can destroy screw thread pair by the method for welding.
Because the two ends of screw rod 30 have locked element 32 in upper end and the locked element 31 in lower end respectively, thereby the supporter 21, clamping element 20 and the base 10 that are connected in screw rod be able to fasteningly, can prevent screw rod play about in the of 30 simultaneously.
As Fig. 3 and shown in Figure 5, described supporter 21 is the single housing parts by the one of at least one side opening of cover plate be combined into, thereby has higher rigidity.Preferably, the housing with relative opening of supporter 21 for forming by four cover plates.
According to the application operating mode of anchor clamps, each cover plate of supporter 21 can be made by metal material or nonmetallic materials, as cast iron, carbon steel, pottery etc.If cover plate is a metal material, can each cover plate be combined by the multiple technologies means, for example, welding, splicing, riveted joint etc.; If cover plate is nonmetallic materials, can couple together by splicing.Consider the interchangeability and the processing cost of parts, select 25 steel, 45 steel and steel alloy etc. for use, the employing welding is connected together each bridge welding and makes supporter 21.
Described supporter 21 also has through hole 210, and screw rod 30 passes this through hole 210 and extends, thereby realizes that screw rod 30 connects with the activity of supporter 21, and screw rod 30 can freely rotate with respect to supporter 21, and described through hole 210 is a unthreaded hole.
The part of described clamping element 20 is positioned at the enclosure interior of described supporter 21, and another part protrudes from the outside of this housing by the opening of described housing.
Preferably, fit with described clamping element 20 respectively in two relative sides of the inside of described supporter 21 housings, and described clamping element 20 can slide relatively in described enclosure interior simultaneously.The both sides of supporter 21 inside are equivalent to the rail plate of clamping element 20 like this, thereby make clamping element 20 have motion accurately.The matching relationship of clamping element 20 and supporter 21 can be realized by machining accuracy and tolerance fit, has been well known to those of ordinary skill in the art, no longer is described in detail at this.
Another part of described clamping element 20 outwards protrudes from the outside of described housing from the opening of described supporter 21 housings, this part is the working portion 201 of clamping element 20, as shown in Figure 6, the working portion 201 of described clamping element 20 directly is pressed on the surface of workpiece, thereby realizes the effect of described clamp fixation workpiece.
As shown in Figure 6, described clamping element 20 also has screwed hole 220, described screw rod 30 passes this screwed hole 220 and connects clamping element 20, and screw rod 30 connects with clamping element 20 screw thread pairs by this screwed hole 220, thereby forms worm drive between screw rod 30 and clamping element 20.
As shown in Figure 3, described clamping element 20 connects with the screw thread pair of screw rod 30 owing to hide within supporter 21, thereby well is protected, and the smear metal double thread by-product of avoiding producing when workpiece is carried out machining is given birth to and destroyed.
Described screwed hole 220 can be positioned at the optional position that clamping element 20 is positioned at supporter 21 hollow spaces part, so that the connection of screw rod 30 gets final product.Preferably, described screwed hole 220 is positioned on the longitudinal axis of clamping element 20, in order to avoid owing to clamping element 20 non-uniform mass described screw thread pair is had a negative impact.More preferably, described screwed hole 220 passes the position at described clamping element 20 center of gravity places, when clamping element 20 when screw rod 30 moves up and down, eliminated the adverse effect of the self gravitation of clamping element 20 to described screw thread pair.
Preferably, described clamping element 20 has the afterbody 202 that stretches out in outside the described supporter 21, comprises that also described supporter 21 comprises the flange 215 that cooperates with this chute 225 along the axial chute 225 of screw rod 30.Chute 225 can be one or more pairs of with flange 215, is preferably two couple of symmetric arrangement.The pair of flanges 215 of described supporter 21 extend within a pair of chute 225 of described clamping element 20, fit mutually in the surface of the surface of described flange 215 and chute 225, can be free to slide simultaneously, thereby this plays the effect of guiding clamping element 20 motion to chute 225 with flange 215, thereby clamping element 20 has accurately and stably motion.
In addition, when described anchor clamps workpiece pressing, workpiece can produce reaction forces to the working portion 201 of described clamping element 20, thereby effect has moment on clamping element 20, under the effect of this moment, the working portion 201 of clamping element 20 can uprise, simultaneously afterbody 202 step-downs of clamping element 20.This deformation meeting of described clamping element 20 connects with screw thread pair between the screw rod 30 clamping element 20 and produces heavy damage, thereby influences the result of use and the life-span of described anchor clamps.
Yet, because described clamping element 20 has afterbody 202, and there is the cooperation between pair of flanges 215 and the chute 225, when above-mentioned deformation takes place in clamping element 20, the surface of the rear surface of described flange 215 and described afterbody 202 is in contact with one another, and generation acts on the active force of clamping element 20, the formed moment of this active force is just offset the moment that produces at described working portion 201, thereby on clamping element 20, reach the balance of moment, thereby avoid above-mentioned screw thread pair being connected the destruction of generation because of clamping work pieces.
Described clamping element 20 can be made by metal material or nonmetallic materials, has enough rigidity and intensity and gets final product, and considers cost and is convenient to processing and manufacturing, select carbon steel or steel alloy for use, for example 25 steel, 45 steel, and clamping element 20 is whole single part, thus have higher rigidity.
Below, with reference to figure 3, Fig. 4 and Fig. 7 base 10 is described in detail.
As shown in Figure 4, described anchor clamps 100 are connected in the workbench 300 of lathe by described base 10.The T-shape of the cross section of base 10 for standing upside down is so that be connected in the interior (see figure 4) of the T type groove of platen 300.Base 10 closely cooperates in the T of workbench 300 type groove, thereby whole anchor clamps 100 are positioned accurate position on the workbench 300, and whole anchor clamps 100 are supported in the effect of base 10 simultaneously in addition.
Be positioned at the intersection of base aperture 101 with base 10 bottom surfaces, base aperture 10 has holds the described shape chamber 102 of locked element 31 down, and the size in described shape chamber 102 is greater than the diameter of described base aperture 101, as shown in Figure 7.
Described screw rod 30 is after passing supporter 21, clamping element 20, be connected in base 10 by described base aperture 101, and the end of described screw rod 30 can not stretch out in outside the bottom surface of described base 10, with cooperating between the T type groove of avoiding influencing described base 10 and workbench 300, and influence the location of whole anchor clamps 100.The end of described screw rod 30 is positioned at described shape chamber 102.
The size in described shape chamber 102 can realize by multiple design greater than the diameter of base aperture 101, such as, shape chamber 102 can be circular hole, thereby is the shoulder hole part of base aperture 101; Perhaps can be processed with groove in the bottom surface of base 10, the width of this groove gets final product greater than the diameter of base aperture 101.
Below in conjunction with Fig. 3 the assembly method of the jig that the utility model provides is described, step is: screw rod 30 is passed base 10; Pass a cover plate of supporter 21 then; Reconnect clamping element 20 then, screw rod 30 is screwed into screwed hole 220 with screwed hole 220; Then, all the other cover plates are combined, to form supporter 21; Adjust the position relation of supporter 21, clamping element 20 and base 10 then; The last locked element in the locked element 32 in upper end and lower end 31 of using respectively at the two ends of screw rod 30 is locked, thereby supporter 21 closely links together with base 10, makes the jig 100 that the utility model provides.
Below in conjunction with Fig. 2 and Fig. 4 explanation, the using method of the jig that the utility model provides.When jig 100 clamping work pieces 200 that use the utility model to provide, the step that adopts is: base 10 is installed in the T type groove of workbench 300, thereby base 10 closely cooperates together with T type groove, and supporter 21 contacts with the upper surface of workbench 300 simultaneously; Move these anchor clamps 100 to the tram along T type groove, so that clamping work pieces 200; The top of rotating screw bolt 30 (forming dead the cooperation with locked element) under the effect of worm drive, drives clamping element 20 and moves up, and moves to the position of being convenient to clamp workpiece 200 and gets final product; Adjust the position of anchor clamps 100, so that correct clamping work pieces 200, the top of counter-rotation screw rod 30 drives clamping element 20 and moves down, and after clamping element 20 contact workpieces 200, is rotated further screw rod 30 to the appropriate location, to obtain enough chucking powers.
The clamping range of described anchor clamps 100 depends on the length of screw rod 30 and the height of supporter 21 hollow spaces, specifically, when clamping element 20 is positioned at the uppermost position in fig-ure of supporter 21 hollow spaces, is the maximum grip height of anchor clamps 100; When clamping element 20 is positioned at the extreme lower position of supporter 21 hollow spaces, be the minimum its clamped height of anchor clamps 100.Therefore when design, can determine the size of screw rod 30 and the fit dimension of supporter 21 and clamping element 20 according to the concrete application operating mode of these anchor clamps 100.
Because the jig that the utility model provides is an integral structure, thereby has higher rigidity, can realize better clamping effect, the adjusting owing to these anchor clamps working range simultaneously only gets final product by adjusting screw(rod) 30, thereby easy and simple to handle, and operating efficiency is higher.
Claims (7)
1. jig, it is characterized in that, described anchor clamps (100) comprise clamping element (20), base (10) and are fixedly connected with the screw rod (30) of the locked element in lower end (31), described screw rod (30) and described clamping element (20) be for screw thread pair connects, and described screw rod (30) and described base (10) be movable to be connected and make described screw rod (30) can not break away from described base (10) by the locked element in described lower end (31) and move up.
2. anchor clamps according to claim 1, it is characterized in that, described anchor clamps also comprise supporter (21), and described clamping element (20) is positioned between at least a portion of base (10) and supporter (21), and described screw rod (30) passes this part and the clamping element (20) of supporter (21).
3. anchor clamps according to claim 2 is characterized in that, the upper end of described screw rod also is fixedly connected with upper end locked element (32), and the locked element in this upper end (32) is positioned at the top of described supporter (21).
4. anchor clamps according to claim 2, it is characterized in that, described supporter (21) is for having the housing of upper and lower surface and at least one side opening, the part of described clamping element (20) is positioned at this enclosure interior, another part protrudes from hull outside by this opening, and described screw rod (30) passes the upper and lower surface and the clamping element (20) of this housing.
5. anchor clamps according to claim 4 is characterized in that, fit with described clamping element (20) respectively in two relative sides of described enclosure interior.
6. according to claim 2 or 4 described anchor clamps, it is characterized in that, described clamping element (20) comprises along the axial chute (225) of screw rod (30), described supporter (21) comprises the flange (215) that cooperates with described chute (225), and described chute (225) can slide relatively with flange (215).
7. anchor clamps according to claim 2, it is characterized in that, described base has the shape chamber (102) that holds the locked element in lower end (31), and screw rod (30) passes the locked element of base (10) and lower end (31) and is positioned at described shape chamber (102) and makes described screw rod (30) be no more than the bottom surface of described base (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620148605 CN200963758Y (en) | 2006-10-13 | 2006-10-13 | Machine tool fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620148605 CN200963758Y (en) | 2006-10-13 | 2006-10-13 | Machine tool fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200963758Y true CN200963758Y (en) | 2007-10-24 |
Family
ID=38867772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620148605 Expired - Lifetime CN200963758Y (en) | 2006-10-13 | 2006-10-13 | Machine tool fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200963758Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605092A (en) * | 2018-12-12 | 2019-04-12 | 成都飞机工业（集团）有限责任公司 | A kind of General hydraulic quick clamping tool |
-
2006
- 2006-10-13 CN CN 200620148605 patent/CN200963758Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605092A (en) * | 2018-12-12 | 2019-04-12 | 成都飞机工业（集团）有限责任公司 | A kind of General hydraulic quick clamping tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071024 |
|
| EXPY | Termination of patent right or utility model |