CN209364380U - Fixture for grinding machine - Google Patents

Abstract

The utility model provides a kind of fixture for grinding machine, and fixture for grinding machine includes: collet, has putting hole, putting hole is for placing workpiece；Fixation kit, fixation kit are partly threaded through in putting hole, and fixation kit has the fixation position and the first evacuation position of fixed workpiece for fixing workpiece, fixation kit；Component is pre-tightened, is movably disposed on collet, component and fixation kit is pre-tightened and is arranged along the axis direction interval of collet, pre-tightens pre-stressed position and the second evacuation position that component has fixed workpiece.By technical solution provided by the present application, it is able to solve the low problem of positioning accuracy in the prior art.

Description

Fixture for grinding machine

Technical field

The utility model relates to technical fields of mechanical processing, in particular to a kind of fixture for grinding machine.

Background technique

Currently, the fixture of grinding machine relies primarily on and can be manually rotated screw rod, it is artificial using screw-pressing workpiece, and when being loaded Shaking will appear installation error, not can guarantee workpiece accurate positioning, and then cause the product qualification rate of processing lower, product need to be into Row is done over again, and production efficiency is lower.Therefore, it using positioning in the prior art and clamping device, asks there are positioning accuracy is low Topic.

Utility model content

The utility model provides a kind of fixture for grinding machine, to solve the problems, such as that positioning accuracy in the prior art is low.

The utility model provides a kind of fixture for grinding machine, and fixture for grinding machine includes: collet, has putting hole, and putting hole is used for Place workpiece；Fixation kit, fixation kit are partly threaded through in putting hole, and fixation kit is for fixing workpiece, fixation kit Fixation position and the first evacuation position with fixed workpiece；Component is pre-tightened, is movably disposed on collet, component is pre-tightened It is arranged with fixation kit along the axis direction interval of collet, pre-tightens pre-stressed position and the second evacuation that component has fixed workpiece Position.

Further, the side wall of collet has mounting hole, and mounting hole is connected to putting hole, and fixation kit is movably disposed In mounting hole.

Further, fixation kit includes: actuator, and actuator is movably disposed in mounting hole, and and mounting hole It is threadedly coupled；Fixing piece is movably disposed in putting hole, and actuator and fixing piece are drivingly connected, and fixing piece is used for putting The workpiece set in hole is fixed, and actuator moves between fixed position and the first evacuation position for driving fixing piece.

Further, fixing piece is elastic component, and fixing piece has a first end and second end being oppositely arranged, the of fixing piece One end is fixed on collet, and the second end of fixing piece is free end.

Further, the side towards workpiece of fixing piece is provided with limiting stand, and the second of fixing piece is arranged in limiting stand The surface towards workpiece side at end, limiting stand is arc, so that the outer surface of limiting stand and workpiece matches.

Further, the extending direction of fixing piece and the extending direction of putting hole are identical, and fixing piece part is located at installation On the extending direction in hole, the side of fixing piece towards mounting hole is provided with limiting groove, and limiting groove is for the end with actuator Portion's cooperation limit.

Further, be provided with boss on the lateral wall of collet, mounting hole is arranged on boss, the height of boss be greater than or Equal to the half of actuator length.

Further, pre-tightening component includes pressing piece, and pressing piece has the turning end being oppositely arranged and operating side, turning end It is rotatably arranged on collet, operating side has bending part, and pressing piece is in pre-stressed position, axis of the operating side towards collet Direction bending, to be clamped by operating side to workpiece.

Further, component is pre-tightened further include: shaft is arranged on collet, and pressing piece can be rotatably set by shaft On collet；One end of first elastic component, the first elastic component is connect with pressing piece, and the other end and collet of the first elastic component connect It connects.

Further, fixture for grinding machine further include: locating part, position are adjustably arranged in putting hole, and locating part is located at solid Determine the side of the separate preload component of component, locating part is for limiting position of the workpiece in putting hole.

Further, the extending direction of locating part and the extending direction of putting hole are identical, fixture for grinding machine further include: the second bullet Property part, be arranged in putting hole, and one end of the second elastic component is connect with locating part；Adsorption piece is arranged in putting hole, second The other end of elastic component is connect with adsorption piece, and adsorption piece is used to mutually adsorb with the end of workpiece.

Using the technical solution of the utility model, which includes collet, fixation kit and preload component.Wherein, For placing workpiece, fixation kit is partly threaded through in putting hole putting hole on collet, and fixation kit is used for regular worker Part pre-tightens component and is movably disposed on collet.When carrying out clamping to workpiece, workpiece is placed in putting in collet first It sets in hole, preload component is then made to be located at pre-stressed position, workpiece is clamped using the preload effect for pre-tightening component and axial Positioning, then by fixation kit is fixed workpiece and centralized positioning again.By above structure, using preload component to work Part is fixed and is positioned in advance, avoids installation error occur because of artificial shaking when being loaded, and then be able to ascend device Positioning accuracy.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:

Fig. 1 shows the structural schematic diagram according to fixture for grinding machine provided by the embodiment of the utility model；

Fig. 2 shows the structural schematic diagrams that the preload component in Fig. 1 is connected with collet；

Fig. 3 shows the cross-sectional view according to fixture for grinding machine provided by the embodiment of the utility model；

Fig. 4 shows the structural schematic diagram of the fixing piece in Fig. 1；

Fig. 5 shows another structural schematic diagram of the fixing piece in Fig. 1；

Fig. 6 shows another structural schematic diagram according to fixture for grinding machine provided by the embodiment of the utility model.

Wherein, the above drawings include the following reference numerals:

10, collet；11, workpiece；12, boss；

20, fixation kit；21, actuator；22, fixing piece；221, limiting stand；222, limiting groove；

30, component is pre-tightened；31, pressing piece；32, shaft；33, the first elastic component；

40, locating part；41, the second elastic component；42, adsorption piece.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.

As shown in Figures 1 to 6, the utility model embodiment provides a kind of fixture for grinding machine, which includes collet 10, fixation kit 20 and preload component 30.Wherein, collet 10 has putting hole, and putting hole is for placing workpiece 11.Fixation kit 20 are partly threaded through in putting hole, and fixation kit 20 is for fixing workpiece 11, and fixation kit 20 has fixed workpiece 11 Fixed position and the first evacuation position.It pre-tightens component 30 to be movably disposed on collet 10, pre-tightens component 30 and fixed group Part 20 is arranged along the axis direction interval of collet 10, and pre-tightens pre-stressed position and second of the component 30 with fixed workpiece 11 and keep away Allow position.Wherein, it pre-tightens component 30 and fixation kit 20 to be arranged along the axis direction interval of collet 10, for the ease of pre-tightening component 30 pairs of workpiece 11 pre-tighten, and in the present embodiment, will pre-tighten component 30 and are arranged on the axis direction of collet 10 close to workpiece 11 side.

Using fixture for grinding machine provided in this embodiment, which includes collet 10, fixation kit 20 and preload component 30.Wherein, for placing workpiece 11, the fixation kit 20 being partly threaded through in putting hole is used for the putting hole that collet 10 has Fixed workpiece 11, and pre-tighten component 30 in clamping workpiece 11 and play the role of preload and axially position.Specifically, to workpiece When 11 progress clamping, workpiece 11 is placed in putting hole, and presses preload component 30 and is located at pre-stressed position, to complete Then preload and axially position to workpiece 11 rotate fixation kit 20 and are located at fixed position, and then complete to workpiece 11 Fixation and centralized positioning, finally unclamp pre-tighten component 30 be located at the second evacuation position, prevent from colliding when washing mill. Using fixture for grinding machine provided by the present application, workpiece 11 is fixed and positioned in advance using component 30 is pre-tightened, is avoided because of dress Artificial shaking when card and there is installation error, and then be able to ascend the positioning accuracy of device.

Specifically, the side wall of collet 10 has mounting hole, and mounting hole is connected to putting hole, and fixation kit 20 is movably It is arranged in mounting hole.Also, screw thread is provided in mounting hole, the mode that fixation kit 20 is connected through a screw thread and collet 10 It is attached, moving up and down for fixation kit 20 can be realized by rotating fixation kit 20, make fixation kit 20 and workpiece 11 It abuts, and then fixed workpiece 11.

As shown in Figures 3 to 5, fixation kit 20 includes actuator 21 and fixing piece 22.Wherein, actuator 21 is movably Setting is provided with screw thread in mounting hole, and on actuator 21 and is threadedly coupled with mounting hole.Fixing piece 22 is movably arranged In putting hole, actuator 21 and fixing piece 22 are drivingly connected, and fixing piece 22 is used to that the workpiece 11 in putting hole to be fixed, Actuator 21 moves between fixed position and the first evacuation position for driving fixing piece 22.It is fixed when to workpiece 11 When, it needs rotary drive 21 to move down it, then drives fixing piece 22 mobile towards workpiece 11 using actuator 21, make solid Determine part 22 to compress it with the patch merga pass actuator 21 of workpiece 11, and then completes the fixation of workpiece 11.In the present embodiment In, for the ease of rotary drive 21, handle can be set in the end of the separate collet 10 of actuator 21, and will be on actuator 21 Screw thread be set as left hand thread, can prevent from encountering grinding wheel due to inertia when unscrewing actuator 21 manually after processing is completed and making At safety accident.Specifically, for the ease of assembly and later maintenance, the mode that can be connected through a screw thread is by handle and actuator 21 are installed together.

Specifically, fixing piece 22 is elastic component, fixing piece 22 has the first end and second end being oppositely arranged, fixing piece 22 First end be fixed on collet 10, the second end of fixing piece 22 is free end.Wherein, the first end of fixing piece 22 passes through screw thread The mode of connection is fixed with collet 10, is arranged such and was not only safeguarded convenient for assembly but also convenient for the later period.Wherein, fixing piece 22 Second end compress when with workpiece 11 be in close contact, can be restored to when not being driven the effect of 21 lower end load of part with The isolated state of workpiece 11.

Preferably, the side towards workpiece 11 of fixing piece 22 is provided with limiting stand 221, and limiting stand 221 is arranged in fixation The second end of part 22, the surface towards 11 side of workpiece of limiting stand 221 are arc, so that limiting stand 221 and workpiece 11 is outer Surface matches.Specifically, in the present embodiment, the radius of limiting stand 221 is identical as the radius of workpiece 11, using above-mentioned knot Structure can be close to the upper surface of workpiece 11 when compressing under the action of fixing piece 22 is in actuator 21 with workpiece 11, in this way can be with 22 lower end of fixing piece is contacted with the contact type of workpiece 11 by point/line and is converted to face contact, increases friction, so that clamping It is not easy to skid in journey, clamping is more firm, and machining accuracy is higher, improves the fixed effect of device.

Preferably, the extending direction of fixing piece 22 and the extending direction of putting hole are identical, and 22 part of fixing piece is located at peace On the extending direction for filling hole, the side of fixing piece 22 towards mounting hole is provided with limiting groove 222, limiting groove 222 be used for The end of actuator 21 cooperates limit.Specifically, the size of limiting groove 222 is with actuator 21 close to the end ruler of fixing piece 22 It is very little identical, it ensure that the screw-in of actuator 21 moves down its rear lower end and is embedded just below in limiting groove 222, further improve device Positioning accuracy and fixing piece 22 and 21 connective stability of actuator.

Preferably, boss 12 is provided on the lateral wall of collet 10, mounting hole is arranged on boss 12, the height of boss 12 More than or equal to the half of 21 length of actuator.By above structure, actuator 21 can be effectively reduced during screw-in The dancing of appearance, and reduce clamping error resulting from.

As depicted in figs. 1 and 2, pre-tightening component 30 includes pressing piece 31, pressing piece 31 have the turning end that is oppositely arranged and Operating side, turning end are rotatably arranged on collet 10, and operating side has bending part, and pressing piece 31 is in pre-stressed position, behaviour Make end to bend towards the axis direction of collet 10, to be clamped workpiece 11 by operating side.So set, hand can be reduced The displacement axially and longitudinally that workpiece 11 occurs in clamping position fixing process when dynamic pressing pressure head, guarantees the assembly precision of workpiece.

Specifically, pre-tightening component 30 further includes shaft 32 and the first elastic component 33.Wherein, shaft 32 is arranged in collet 10 On, pressing piece 31 is rotatably arranged on collet 10 by shaft 32.One end of first elastic component 33 is connect with pressing piece 31, The other end of first elastic component 33 is connect with collet 10.Specifically, can be using fixinig plate in such a way that fastener combines, it will The end of first elastic component 33 is fixed on pressing piece 31 and/or collet 10.Wherein it is possible to which the extending direction of shaft 32 is arranged Be it is perpendicular with the axis direction of collet 10, such setting can guarantee that the lower end of pressing piece 31 is parallel with workpiece surface, improve Axially position accuracy of the pressing piece 31 to workpiece 11.Preferably, the first elastic component 33 is spring, is being pressed from both sides to reduce workpiece 11 The offset axially and longitudinally occurred during tightening position, the structure design of spring is integrated, i.e., only a spring twines It is wound in shaft 32, symmetrical up and down, the uniform load that ensure that device is subject to is symmetrical, further improves The positioning accuracy of device.

Specifically, fixture for grinding machine further includes locating part 40,40 position of locating part is adjustably arranged in putting hole, locating part 40 are located at the side of the separate preload component 30 of fixation kit 20, and locating part 40 is for limiting position of the workpiece 11 in putting hole It sets.Wherein, locating part 40 is attached by way of being threadedly engaged with collet 10, and tune can be realized by rotary stopper part 40 Position of the whole workpiece 11 in putting hole.By the way that locating part 40 is arranged, it can guarantee the consistency of multiple clamping, so that workpiece 11 Axial position when clamping is fixed each time.

Preferably, the extending direction of locating part 40 and the extending direction of putting hole are identical, and fixture for grinding machine further includes the second bullet Property part 41 and adsorption piece 42.Wherein, the second elastic component 41 is arranged in putting hole, one end of the second elastic component 41 and locating part 40 Connection, adsorption piece 42 is arranged in putting hole, and the other end of the second elastic component 41 is connect with adsorption piece 42, and adsorption piece 42 is used for It is mutually adsorbed with the end of workpiece 11.Specifically, in the present embodiment, the second elastic component 41 is spring, subtracted using the buffering of spring Shake effect, can not only play buffer function, but also can reduce due to workpiece 11 and grinding wheel in grinding process when assembling workpiece 11 Between severe friction generate shock loading and vibration caused by trueness error.Also, adsorption piece 42 is magnet, is so set It sets convenient for enabling workpiece quickly to carry out axially position by the magnetic-adsorption workpiece of magnet.

As shown in fig. 6, in the present embodiment, V-type is set by the cross-sectional shape of 10 putting hole of collet, using above-mentioned knot The quick centralized positioning of workpiece 11 may be implemented in structure.

Embodiment provided by the utility model is illustrated below with reference to the specific clamping process of fixture for grinding machine:

(1) there is the one side of diamond upward workpiece 11 and be inserted into collet 10；

(2) according to the processing request of workpiece 11, the axial position of workpiece 11 is adjusted by screwing locating part 40, guarantees to press The bending part of operating side is clamped at the horizontal cross-section of workpiece 11 when casting die 31 pushes；

(3) pressing piece 31 is pressed, so that pressing piece 31 and 11 horizontal cross-section of workpiece is in " line-face contact " state, revolves simultaneously Handle is twisted, so that in the bottom end indentation limiting groove 222 of actuator 21, until limiting stand 221 and the cylindrical surface of workpiece 11 are close The clamping of workpiece is completed in contact, is unclamped pressing piece 31, so that pressing piece 31 is reset to the second evacuation position using the elastic force of spring It sets, to guarantee that pressing piece 31 does not touch grinding wheel in grinding, improves device security.

The fixture for grinding machine provided through this embodiment, the fixture for grinding machine have structure tight compared to existing fixture for grinding machine It gathers, advantage easy to operate, had not only improved the positioning accuracy of fixture for grinding machine, but also reduce production cost.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.

Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with In attached drawing afterwards do not need that it is further discussed.

In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself Wide is inside and outside.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.

In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this The limitation of utility model protection range.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (11)

1. a kind of fixture for grinding machine, which is characterized in that the fixture for grinding machine includes:

Collet (10) has putting hole, and the putting hole is for placing workpiece (11)；

Fixation kit (20), the fixation kit (20) are partly threaded through in the putting hole, and the fixation kit (20) is used In the fixation workpiece (11), the fixation kit (20) has fixation position and the first evacuation of the fixed workpiece (11) Position；

It pre-tightens component (30), is movably disposed on the collet (10), the preload component (30) and the fixation kit (20) it is arranged along the axis direction interval of the collet (10), described pre-tighten component (30) have the pre- of the fixed workpiece (11) Tight position and the second evacuation position.

2. fixture for grinding machine according to claim 1, which is characterized in that the side wall of the collet (10) has mounting hole, institute It states mounting hole to be connected to the putting hole, the fixation kit (20) is movably disposed in the mounting hole.

3. fixture for grinding machine according to claim 2, which is characterized in that the fixation kit (20) includes:

Actuator (21), the actuator (21) are movably disposed in the mounting hole, and connect with the mounting hole screw thread It connects；

Fixing piece (22), is movably disposed in the putting hole, and the actuator (21) and the fixing piece (22) drive Connection, the fixing piece (22) is for being fixed the workpiece (11) in the putting hole, and the actuator (21) is for driving It moves the fixing piece (22) and is moved between the fixed position and first evacuation position.

4. fixture for grinding machine according to claim 3, which is characterized in that the fixing piece (22) is elastic component, the fixation Part (22) has the first end and second end being oppositely arranged, and the first end of the fixing piece (22) is fixed on the collet (10) On, the second end of the fixing piece (22) is free end.

5. fixture for grinding machine according to claim 4, which is characterized in that the fixing piece (22) towards the workpiece (11) Side be provided with limiting stand (221), second end of the limiting stand (221) setting in the fixing piece (22), the limit The surface towards the workpiece (11) side of platform (221) is arc, so that the limiting stand (221) and the workpiece (11) Outer surface matches.

6. fixture for grinding machine according to claim 4, which is characterized in that the extending direction of the fixing piece (22) is put with described The extending direction for setting hole is identical, and the fixing piece (22) is partially located on the extending direction of the mounting hole, the fixing piece (22) it is provided with limiting groove (222) towards the side of the mounting hole, the limiting groove (222) is used for and the actuator (21) end cooperates limit.

7. fixture for grinding machine according to claim 3, which is characterized in that be provided with boss on the lateral wall of the collet (10) (12), the mounting hole is arranged on the boss (12), and the height of the boss (12) is greater than or equal to the actuator (21) half of length.

8. fixture for grinding machine according to claim 1, which is characterized in that the preload component (30) includes pressing piece (31), There is the pressing piece (31) turning end being oppositely arranged and operating side, the turning end to be rotatably arranged in the collet (10) on, the operating side has bending part, and for the pressing piece (31) in the pre-stressed position, the operating side is described in The axis direction of collet (10) is bent, to be clamped by the operating side to the workpiece (11).

9. fixture for grinding machine according to claim 8, which is characterized in that the preload component (30) further include:

Shaft (32) is arranged on the collet (10), and the pressing piece (31) can be rotatably set by the shaft (32) On the collet (10)；

One end of first elastic component (33), first elastic component (33) is connect with the pressing piece (31), first elasticity The other end of part (33) is connect with the collet (10).

10. fixture for grinding machine according to claim 1, which is characterized in that the fixture for grinding machine further include:

Locating part (40), position are adjustably arranged in the putting hole, and the locating part (40) is located at the fixation kit (20) the side far from preload component (30), the locating part (40) is for limiting the workpiece (11) in the placement Position in hole.

11. fixture for grinding machine according to claim 10, which is characterized in that the extending direction of the locating part (40) with it is described The extending direction of putting hole is identical, the fixture for grinding machine further include:

Second elastic component (41) is arranged in the putting hole, and one end of second elastic component (41) and the locating part (40) it connects；

Adsorption piece (42) is arranged in the putting hole, the other end of second elastic component (41) and the adsorption piece (42) Connection, the adsorption piece (42) are used to mutually adsorb with the end of the workpiece (11).