CN208514125U - A kind of part processing clamp - Google Patents

Abstract

The utility model discloses a kind of part processing clamps, including jig main body and clamping assembly, multiple clamping assemblies are circumferentially distributed on jig main body, clamping assembly includes support device, hold-down devices and elastic pre-tightening apparatus, support device and hold-down devices are liftably set to jig main body respectively, and the seal face of hold-down devices can mutually be drawn close with the supporting surface of support device with retaining element, elastic pre-tightening apparatus is used for be set in the seal face of hold-down devices and the supporting surface of support device one between part；Above-mentioned part processing clamp includes pre- clamping and two processes of centering when in use, during centering, it does not need to unclamp fixture repeatedly, pad thin slice is not needed yet, it only needs to be adjusted one not be engaged with elastic pre-tightening apparatus in hold-down devices and support device after pre- clamp, it is more efficient convenient for operation, it can be effectively reduced the dependence to operator's experience and proficiency, and avoid the risk of the part sliding in processing.

Description

A kind of part processing clamp

Technical field

The utility model relates to part processing technique field, in particular to a kind of part processing clamp.

Background technique

After brazing, due to passing through high temperature, part rests against face can occur irregular deformation to certain type diffuser class part, rear When continuous turner process, since part wall thickness is relatively thin, it is not available soft pawl, fixture can only be used, in order to guarantee runner and installation side Precise measure requirement, carry out processing preceding centering, to guarantee runner and install the positional relationship on side, but since part rests against Face deformation is larger, and centering is difficult.

As described above, in the prior art, diffuser class part is fixed using fixture, referring to Fig. 1, the fixture packet Clamp body 01 and claw 02 are included, multiple claws 02 are disposed in the circumferential direction of clamp body 01, when in use, part 03 is placed in Clamp body 01, then claw 02 is mobile with Clamp blocks to 01 direction of clamp body, then plays table and measures the low spot for determining part, so After unclamp each claw 02, thin slice is padded on the clamp body 01 in part low spot respective direction, then again by claw 02 by part 03 compresses and plays table measurement, until reaching alignment requirements, it can be seen that, above-mentioned fixture operation is cumbersome, and whole process is to operator Skill requirement is higher, and it is necessary to have the operators of certain skills and experience can just carry out, and is difficult disposably success, needs repeatedly Loose claw pads thin slice, time and effort consuming, in addition, the mode of pad thin slice centering deposits the risk of part sliding in process.

Utility model content

In view of this, the present invention provides a kind of part processing clamps, so that its is easy to operate, time saving and energy saving, drop The low dependence to operator's experience and proficiency, and avoid the risk of the part sliding in processing.

To achieve the above object, the utility model provides the following technical solutions:

A kind of part processing clamp, comprising:

Jig main body；

Clamping assembly, multiple clamping assemblies are circumferentially distributed on the jig main body, and the clamping assembly includes branch Support arrangement, hold-down devices and elastic pre-tightening apparatus, the support device and the hold-down devices are liftably arranged respectively It can mutually be drawn close with the supporting surface of the support device with fixation in the seal face of the jig main body, and the hold-down devices Part, the elasticity pre-tightening apparatus is for being set in the seal face of the hold-down devices and the supporting surface of the support device One between part.

Preferably, the support device includes adjusting screw rod and adjusting lock nut, the adjusting screw rod and the folder Have main body screw cooperation, the adjusting lock nut and the adjusting screw rod cooperation for by the adjusting screw rod relative to described Jig main body is locked.

Preferably, one end of the adjusting screw rod towards the hold-down devices is provided with backing plate.

Preferably, the backing plate and the adjusting lock nut are located at the two sides of the jig main body.

Preferably, the elastic pre-tightening apparatus includes elastic component and pressing plate, and the pressing plate is used to cooperate with feature contacts, The elastic component is set to one in the hold-down devices and the support device between the pressing plate.

Preferably, the hold-down devices include mounting rod and down pressure nut, the mounting rod first end and the fixture Main body connection, second end are threadedly engaged with the down pressure nut.

Preferably, the elastic component is spring washer, and the second end of the mounting rod passes through the pressing plate and the bullet Spring washer and the down pressure nut cooperate.

Preferably, the first end of the mounting rod is threadedly engaged with the jig main body.

It preferably, further include support rod, described support rod one end is spirally connected with the jig main body, and the other end is connected to described Pressing plate.

It preferably, further include support locking nut, the support locking nut is threadedly engaged with the support rod will be described Support rod is locked relative to the jig main body.

It can be seen from the above technical scheme that part processing clamp provided by the utility model, including jig main body with And clamping assembly, wherein jig main body is for installing clamping assembly and providing support；Clamping assembly has multiple, multiple clampings Component is circumferentially distributed on jig main body, and clamping assembly includes support device, hold-down devices and elastic pre-tightening apparatus, support dress It sets and hold-down devices is liftably set to jig main body respectively, and the seal face of hold-down devices can be with the branch of support device Support face is mutually drawn close with retaining element, and elastic pre-tightening apparatus is used to be set to the seal face of hold-down devices and the support of support device One in face is between part；

When in use, hold-down devices are adjusted be not engaged with elastic pre-tightening apparatus in support device one to phase Then same position makes a band being engaged in hold-down devices and support device with elastic pre-tightening apparatus as base position A direction not being engaged with elastic pre-tightening apparatus in the downward pressure device of dynamic elasticity pre-tightening apparatus and support device is mobile, directly Part deformation occurs to elastic pre-tightening apparatus to clamp part realization in advance, then part is carried out to play table measurement, determines part Low spot or high point, then moving one not be engaged with elastic pre-tightening apparatus in hold-down devices and support device makes its promotion Part continues elasticity of compression pre-tightening apparatus, until part correction meets the requirements；

Above-mentioned part processing clamp includes two processes when in use, and first process is pre- clamping, and second process is Centering process after pre- clamping does not need to unclamp fixture repeatedly during centering, does not need pad thin slice, it is only necessary to pre- yet One not be engaged with elastic pre-tightening apparatus in hold-down devices and support device is adjusted after clamping, convenient for behaviour Make, it is more efficient, it can be effectively reduced the dependence to operator's experience and proficiency, and avoid the wind of the part sliding in processing Danger.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is fixture in the prior art and parts fixation structural schematic diagram；

Fig. 2 is the top view of part processing clamp provided by the embodiment of the utility model；

Fig. 3 is the cross-sectional view in Fig. 2 at A-A；

Fig. 4 is part processing clamp provided by the embodiment of the utility model and parts fixation structural schematic diagram.

In figure:

01 is clamp body；02 is claw；03 is part；

10 be jig main body；20 be clamping assembly；210 be support device；211 be adjusting screw rod；212 be adjusting locking screw It is female；213 be backing plate；220 be hold-down devices；221 be mounting rod；222 be down pressure nut；230 be elastic pre-tightening apparatus；231 are Pressing plate；232 be spring washer；240 be support rod；250 be support locking nut.

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.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 2 and Fig. 3 are please referred to, Fig. 2 is the top view of part processing clamp provided by the embodiment of the utility model, and Fig. 3 is Cross-sectional view in Fig. 2 at A-A.

Part processing clamp provided by the embodiment of the utility model, including jig main body 10 and clamping assembly 20.

Wherein, jig main body 10 is for installing clamping assembly 20 and providing support；Clamping assembly 20 has multiple, multiple dresses Clip assembly 20 is circumferentially distributed on jig main body 10, and clamping assembly 20 includes support device 210, hold-down devices 220 and elasticity Pre-tightening apparatus 230, support device 210 and hold-down devices 220 are liftably set to jig main body 10, support device respectively 210 and the liftables of hold-down devices 220 refer to support device 210 or 220 part-structure of hold-down devices using liftable structure Or entirety uses liftable structure, as long as the supporting surface of guarantee support device 210 and the lower pressure surface of hold-down devices 220 can Lifting, the seal face of hold-down devices 220 can be mutually drawn close with the supporting surface of support device 210 with retaining element, elasticity Be used to be set in the seal face of hold-down devices 220 and the supporting surface of support device 210 one of pre-tightening apparatus 230 and part it Between.

It can be seen from the above technical scheme that compared with prior art, part provided by the embodiment of the utility model adds Clamping apparatus, when in use, one will not to be engaged with elastic pre-tightening apparatus 230 in hold-down devices 220 and support device 210 Adjust to identical position as base position, then make in hold-down devices 220 and support device 210 with elastic pre-tightening apparatus 230 be engaged the one downward pressure devices 220 of band dynamic elasticity pre-tightening apparatus 230 with do not pre-tightened with elasticity in support device 210 The direction that device 230 is engaged is mobile, realizes pre- folder to part until part deformation occurs for elastic pre-tightening apparatus 230 Tightly, then part is carried out playing table measurement, determines the low spot or high point of part, then moves hold-down devices 220 and support device One not be engaged with elastic pre-tightening apparatus 230 in 210 makes it that part be pushed to continue elasticity of compression pre-tightening apparatus 230, directly It meets the requirements to part correction, as shown in Figure 4；Above-mentioned part processing clamp includes two processes, first process when in use To clamp in advance, second process is that the centering process after pre- clamp does not need to unclamp fixture repeatedly, not during centering yet Need to pad thin slice, it is only necessary to after pre- clamp to hold-down devices 220 with do not connect with elastic pre-tightening apparatus 230 in support device 210 One of touching cooperation is adjusted, more efficient convenient for operation, can be effectively reduced to operator's experience and proficiency It relies on, and avoids the risk of the part sliding in processing.

As described above, for guarantee clamping stabilization, clamping assembly 20 should be provided with it is multiple, in the utility model embodiment In, as shown in Fig. 2, the setting of clamping assembly 20 is evenly distributed with there are three and along the circumferential direction of jig main body 10, thus right in clamping process Part forms 3 points of structures rested against, to reduce the quantity of clamping assembly 20 while providing stable support, reaches convenient for adjusting Whole purpose.

As long as support device 210 and hold-down devices 220 can be gone up and down, various structures can be used, such as manually Structure or automatic structure, such as piston cylinder, cam link mechanism, in the utility model embodiment, to improve adjustment Precision, support device 210 and hold-down devices 220 are all made of screw slider structure and realize lifting, i.e., will be rotated by helicitic texture Conversion of motion is elevating movement.

As shown in figure 3, the main adjusting screw rod by being threadedly engaged with jig main body 10 of the lifting structure of support device 210 211 are constituted, and when adjusting screw rod 211 is rotated relative to jig main body 10, helicitic texture between the two can will reconcile screw rod It is converted into elevating movement of the adjusting screw rod 211 relative to jig main body 10.

It is understood that in part process, when receiving the influence of external factor, adjusting screw rod 211 and fixture Thread matching structure between main body 10 is easy to loosen, and influences the positioning of part, and then cause adverse effect to the quality of part, is This, in the utility model embodiment, support device 210 further includes adjusting lock nut 212, adjusting lock nut 212 and tune Screw rod 211 is saved to cooperate for adjusting screw rod 211 to be locked relative to jig main body 10, after adjusting screw rod 211 is adjusted in place, Cooperate adjusting lock nut 212 and adjusting screw rod 211 until adjusting lock nut 212 abuts with jig main body 10, passes through tune The pressure saved between locking nut 212 and jig main body 10 realizes mutually locking.

Above-mentioned technical proposal is advanced optimized, in the utility model embodiment, to realize the secure support to part, In the utility model embodiment, one end of adjusting screw rod 211 towards hold-down devices 220 is provided with backing plate 213, utilizes the backing plate 213 can increase the contact area between 211 end of adjusting screw rod and part.

Preferably, between backing plate 213 and adjusting screw rod 211 to be detachably connected, such as backing plate 213 and adjusting screw rod It can be threaded connection between 211, pin connection etc., in order to replace.

It is understood that when support device 210 and 220 Clamp blocks of hold-down devices, clamping device and hold-down devices Gap between 220 is smaller, is not easy to other operations, for this purpose, backing plate 213 and adjusting are locked in the utility model embodiment Nut 212 is located at the two sides of jig main body 10, i.e., while adjusting screw rod 211 and jig main body 10 are threadedly engaged, two End is located at the two sides of jig main body 10, and the side close to the lower pressure surface of hold-down devices 220 is connect with backing plate 213, is located at fixture One end of 10 other side of main body and adjusting lock nut 212 cooperate, and when in use, can be located at folder by operation adjusting screw rod 211 The lifting of adjusting screw rod 211 is realized in the one end for having 10 other side of main body, and operation adjusting lock nut 212 locks afterwards in place in lifting Determine adjusting screw rod 211.

It should be noted that elastic pre-tightening apparatus 230 can be shrinkable for part-structure, being also possible to overall structure can be received Contracting, in the utility model embodiment, to avoid elastic pre-tightening apparatus 230 from scratching piece surface when clamping, elasticity pre-tightens dress It sets 230 to be made of elastic component and 231 two parts of pressing plate, wherein pressing plate 231 is used to cooperate with feature contacts, to increase and zero The contact area of part, elastic component are set to one in hold-down devices 220 and support device 210 between pressing plate 231, elastic component It is not contacted directly with part.

Preferably, pressing plate 231 is used for and is provided with cushion on the surface of feature contacts.

Above-mentioned technical proposal is advanced optimized, in the utility model embodiment, hold-down devices 220 include mounting rod 221 And down pressure nut 222,221 first end of mounting rod are connect with jig main body 10, second end is threadedly engaged with down pressure nut 222, When in use, down pressure nut 222 is converted into the shifting axial along mounting rod 221 of down pressure nut 222 relative to mounting rod 221 It is dynamic, to realize pushing.

Above-mentioned hold-down devices 220 are only preferred embodiment provided by the embodiment of the utility model, practical not office It is limited to this, the automatic or manuals such as hold-down devices 220 or piston cylinder, cam link structure similar with support device 210 Structure.

Elastic component can use compressed spring, spring washer etc., in the utility model embodiment, as shown in figure 3, bullet Property part be spring washer 232, the second end of mounting rod 221 passes through pressing plate 231 and spring washer 232 is matched with down pressure nut 222 It closes.

Above-mentioned technical proposal is advanced optimized, it is real in the utility model for the adjusting convenient for 220 integral position of hold-down devices It applies in example, first end and the jig main body 10 of mounting rod 221 are threadedly engaged, so as to adjust the entirety of hold-down devices 220 at any time Highly.

It is understood that being moving up and down convenient for pressing plate 231, in the above-described embodiments, pressing plate 231 and mounting rod To be slidably matched between 221, when in use, pressing plate 231 is easy to swing due to both ends unbalance stress, it is pushing The support device 210 for being used to support pressing plate 231 should be also arranged in the side of device 220, as shown in figure 3, support device 210 includes Support rod 240,240 one end of support rod are spirally connected with jig main body 10, and the other end is connected to pressing plate 231, can be first in Clamp blocks Support rod 240 is adjusted to suitable position, when pressing plate 231 is with 220 downlink of hold-down devices and feature contacts, the support rod 240, which provide support, avoids pressing plate 231 from swinging.

Further, support device 210 further includes support locking nut 250, support locking nut 250 and support rod 240 It is threadedly engaged and locks support rod 240 relative to jig main body 10.

It should be noted that as shown in figure 3, above-described embodiment is set to hold-down devices substantially with elastic pre-tightening apparatus 230 For between 220 seal face and part, and elastic pre-tightening apparatus 230 is set to the supporting surface and part of support device 210 Between mode of operation or each component arrangement it is similar to the above embodiments, repeat no more.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (10)

1. a kind of part processing clamp characterized by comprising

Jig main body；

Clamping assembly, multiple clamping assemblies are circumferentially distributed on the jig main body, and the clamping assembly includes support dress It sets, hold-down devices and elastic pre-tightening apparatus, the support device and the hold-down devices are liftably set to institute respectively Jig main body is stated, and the seal face of the hold-down devices can mutually be drawn close with the supporting surface of the support device with constant zero Part, the elasticity pre-tightening apparatus are used to be set to the seal face of the hold-down devices and one in the supporting surface of the support device It is a between part.

2. part processing clamp according to claim 1, which is characterized in that the support device include adjusting screw rod and Adjusting lock nut, the adjusting screw rod are threadedly engaged with the jig main body, the adjusting lock nut and the adjusting spiral shell Bar cooperates for the adjusting screw rod to be locked relative to the jig main body.

3. part processing clamp according to claim 2, which is characterized in that the adjusting screw rod is towards the hold-down devices One end be provided with backing plate.

4. part processing clamp according to claim 3, which is characterized in that the backing plate and the adjusting lock nut point Not Wei Yu the jig main body two sides.

5. part processing clamp according to any one of claims 1-4, which is characterized in that the elasticity pre-tightening apparatus packet Elastic component and pressing plate are included, the pressing plate is used to cooperate with feature contacts, and the elastic component is set to the hold-down devices and institute One in support device is stated between the pressing plate.

6. part processing clamp according to claim 5, which is characterized in that the hold-down devices include mounting rod and under Nut is pressed, the mounting rod first end is connect with the jig main body, and second end is threadedly engaged with the down pressure nut.

7. part processing clamp according to claim 6, which is characterized in that the elastic component is spring washer, the peace The second end for filling bar passes through the pressing plate and the spring washer and the down pressure nut cooperates.

8. part processing clamp according to claim 6, which is characterized in that the first end of the mounting rod and the fixture Main body screw cooperation.

9. part processing clamp according to claim 5, which is characterized in that it further include support rod, described support rod one end It is spirally connected with the jig main body, the other end is connected to the pressing plate.

10. part processing clamp according to claim 9, which is characterized in that further include support locking nut, the support Locking nut and the support rod, which are threadedly engaged, locks the support rod relative to the jig main body.