CN207139298U - A kind of auxiliary support mechanism suitable for crankcase processing - Google Patents

Abstract

The utility model discloses a kind of auxiliary support mechanism suitable for crankcase processing, belong to crankcase processing technique field, it in crankcase clamp base by setting fixed seat, and accordingly matching sets the parts such as bushing, push rod, spring and cylinder in fixed seat, it is arranged to inclined-plane in mandrel ends and is abutted with the inclined-plane with crankcase end face, pass through the distance for controlling push rod to move, effectively realize the Auxiliary support to different size crankcases, and the part such as spring and cylinder and push rod cooperate, realize auxiliary support mechanism it is accurate in place and self-return.Auxiliary support mechanism of the present utility model suitable for crankcase processing, it is simple in construction, it is easily operated, Auxiliary support positive effect, the precision of crankcase processing is greatly improved, improves processing efficiency and passing rate of processing, the cost of processing is greatly reduced, has promoted the application of crankcase.

Description

A kind of auxiliary support mechanism suitable for crankcase processing

Technical field

The utility model belongs to crankcase processing technique field, and in particular to a kind of auxiliary branch suitable for crankcase processing Support mechanism.

Background technology

As the improvement of people's living standards, importance of the refrigerator in people live is also increasing, especially in inflammation The summer of heat, refrigerator also with the demand of people, also constantly updating and improving by its 26S Proteasome Structure and Function.It is well known that refrigerator compresses Machine is the important component that refrigerator can be run, and it is rotated by bent axle in motor driven crankshafts case, bent axle drivening rod again, is entered And moved reciprocatingly with piston in cylinder body, to realize the compression to refrigeration working medium.

The crankcase of freezer compressor carries highly important effect, almost all of compressor in its course of work Parts are assembled using it as matrix, but because crankcase species is various, complicated so that its difficulty of processing compared with Greatly, the processing especially to R grooves and silencing cavity on crankcase.Wherein, R grooves are mainly used to the piston of assembly connection piston and connecting rod Pin, silencing cavity are mainly used in that noise caused by the crankcase course of work is reduced or eliminated, and both are in compressor course of normal operation In carry highly important effect.But because R grooves and silencing cavity are higher to dimension precision requirement, along with crankcase It is complicated so that both difficulty of processing are larger, and product qualified rate is relatively low, especially for some serial crankcases, its Stator face only has two stator pin, and contact surface is smaller, and clamping stability is very poor, further improves difficulty of processing.

In the prior art, for only having the crankcase processing of two stator pin to use with crankcase cylinders on said stator face Head, the form of 3 points of compressions of cylinder tail carry out clamping and consolidated, although it can be realized in crankcase process to a certain extent Clamping fastens, and still, after fixing in a manner described, stability extreme difference during processing, adds when tool contact workpiece is subject to milling Apparent motion often occurs for man-hour, workpiece, occur it is serious allow knife phenomenon, it is unstable not only result in crankcase processing dimension, Also cutter can in itself be caused greatly to damage, the processing cost of crankcase be drastically increased, along with each shifting of workpiece Momentum is inconsistent, causes the size of processing and change in location to have no rule, greatly influences the passing rate of processing of crankcase sump.Though A kind of Manual auxiliary support mechanism is proposed in right patent document CN 201210143605.7, it on bearing by vertically setting Top set bar is matched with guide pin bushing, and Auxiliary support is provided to workpiece with support column, although said structure can meet pair to a certain extent In the Auxiliary support of part to be processed, but for the processing of crankcase, because crankcase size is smaller, it is fixed on fixture Later limited from the space of its side offer vertical supporting, above-mentioned auxiliary support mechanism can not be effectively applicable, along with above-mentioned auxiliary Supporting mechanism push rod bottom is helped to be placed on spring, mobility is larger, and it controls support column by the way of adjusting manually Highly, degree of regulation is poor, and support column has the risk that stress moves down in work pieces process, causes to process plane generation skew, So that machining accuracy reduces, and above-mentioned supporting mechanism needs hand-reset after work pieces process completion, and processing certainly will be caused to imitate The further reduction of rate.

Utility model content

For the disadvantages described above or Improvement requirement of prior art, the utility model provides a kind of crankcase that is applied to and processed Auxiliary support mechanism, wherein by setting fixed seat in crankcase clamp base, and accordingly match and set in fixed seat The parts such as bushing, push rod, spring and cylinder, it is arranged to inclined-plane in mandrel ends and is abutted with the inclined-plane with crankcase end face, it is real Now to the Auxiliary support of fixture upper crankcase, crankcase R grooves, the isostructural machining accuracy of silencing cavity are greatly improved, is improved Product qualified rate, the processing cost of crankcase is reduced, improves processing efficiency.

To achieve the above object, the utility model provides a kind of auxiliary support mechanism suitable for crankcase processing, sets In in the clamp base of clamping crankcase, it is characterised in that including：

Fixed seat, the fixed seat is fixed in the clamp base with its bottom and its top offers connection two side ends The through hole in face；

Bushing, the bushing are fixedly installed in one end of the through hole, and its middle part is axially offered in connection both ends Heart through hole；

Push rod, the push rod is through the central through hole on the bushing and can be slided with respect to its axial reciprocating, one side Portion is opened up as the inclined-plane with certain angle of inclination, for being contacted with the matching of the face to be supported of crankcase to be supported, its opposite side End, which is located in the through hole, and its end periphery is outwardly forms shaft shoulder structure；

Spring, it is set on the push rod and abutted with one side end with the shaft shoulder, its end side and institute The end face that bushing is located in the through hole is stated to abut；And

Cylinder, the cylinder are fixed on the end of the remote crankcase side of the fixed block hole, and it includes setting The piston in the fixed block hole is put, one end that the shaft shoulder can be provided with the push rod matches, and the push rod can be in the work The elastic force of the spring is overcome under the promotion of plug so as to the stretching from above-mentioned central through hole and the song is held out against with its end chamfer The face to be supported of axle box, so as to realize the Auxiliary support to the crankcase.

As further improvement of the utility model, the end set that the push rod is used for Auxiliary support is tied for cone Structure, i.e., the face to be supported of the crankcase is abutted with circular conical surface so as to realize the Auxiliary support to it.

As further improvement of the utility model, the angle of inclination on the mandrel ends inclined-plane is 15 °~25 °.

As further improvement of the utility model, the angle of inclination on the mandrel ends inclined-plane is 20 °.

As further improvement of the utility model, guide groove, the fixed seat and the lining are offered on the push rod Offer the first screw hole and the second screw hole in the side wall of set respectively, guider screw can sequentially pass through first screw hole, Second screw hole is simultaneously stretched into the guide groove with its end and realized to the guiding in the push rod reciprocatory movement With it is spacing.

As further improvement of the utility model, one end of the bushing is protruded from outside the end of the through hole, and should The end chamfer that end corresponds to the push rod is arranged to inclined plane shape, for the push rod from the central through hole stretching after institute Stating bushing does not influence Auxiliary support of its end chamfer to the crankcase, while the end of the bushing can be the push rod end The bottom surface in portion provides support.

As further improvement of the utility model, the inclined-plane of the gasket end is the arcwall face in certain radian, and Match with the end chamfer of the push rod.

In general, by the contemplated above technical scheme of the utility model compared with prior art, have with following Beneficial effect：

(1) auxiliary support mechanism of the present utility model suitable for crankcase processing, by setting fixed seat, push rod and lining Set is mutually matched effect, and sets inclined-plane to be abutted with crankcase away from the end face of machined surface in mandrel ends, so as to realize to it Auxiliary support, the fixation of crankcase machined surface in the structure process such as R grooves, silencing cavity has been effectively ensured, reduce because Machined surface shifts the mismachining tolerance brought, and improves the machining accuracy of R grooves and silencing cavity, reduces the life that defective products is brought Produce cost；

(2) auxiliary support mechanism of the present utility model suitable for crankcase processing, inclined-plane and the song of mandrel ends are passed through Axle box end face abuts carries out Auxiliary support so as to realize to it, and it can be further by controlling the distance of push rod transverse shifting, i.e., Change the contact position on mandrel ends inclined-plane and crankcase end face, so as to realize the Auxiliary support to different size crankcases, its It is compatible high, the processing cost of strong adaptability, further reduction crankcase；

(3) auxiliary support mechanism of the present utility model suitable for crankcase processing, by setting cylinder to realize auxiliary Support member is automatically moved, and the stability of support is greatly ensure that during Auxiliary support, further improves auxiliary The stability of support, the levelness in crankcase face to be processed is ensure that, greatly improve the machining accuracy of part dependency structure；

(4) auxiliary support mechanism of the present utility model suitable for crankcase processing, by being set between push rod and bushing Put spring and guide groove opened up on push rod, using spring come to push rod carry out it is spacing and realize push rod working condition terminate with Self-return afterwards, the efficiency of crankcase processing is greatly improved, and the setting of guide groove further improves push rod in work shape Precision under state；

(5) auxiliary support mechanism of the present utility model suitable for crankcase processing, it is simple in construction, it is easily operated, set Cost is relatively low, Auxiliary support positive effect, greatly improves the efficiency and precision of crankcase processing, reduces the processing of crankcase Cost, the application of crankcase is promoted.

Brief description of the drawings

Fig. 1 is the overall structure signal of the auxiliary support mechanism for being applied to crankcase processing of the utility model embodiment Figure；

Fig. 2 is the dress of the auxiliary support mechanism and crankcase fixture that are applied to crankcase processing of the utility model embodiment With relation front view；

Fig. 3 is the dress of the auxiliary support mechanism and crankcase fixture that are applied to crankcase processing of the utility model embodiment With relation top view；

Fig. 4 is the fixed seat structure signal of the auxiliary support mechanism for being applied to crankcase processing of the utility model embodiment Figure, wherein, Fig. 4 (a) is the right view of fixed seat, and Fig. 4 (b) is the axial sectional view of fixed seat；

Fig. 5 is the push rod structure signal of the auxiliary support mechanism for being applied to crankcase processing of the utility model embodiment Figure, wherein, Fig. 5 (a) is the front view of push rod, and Fig. 5 (b) is the top view of push rod；

Fig. 6 is the bush structure signal of the auxiliary support mechanism for being applied to crankcase processing of the utility model embodiment Figure, wherein, Fig. 6 (a) is the sectional view of bushing, and Fig. 6 (b) is bushing along B-B direction sectional view；

In all of the figs, same reference represents identical technical characteristic, is specially：1. fixed seat, 101. One screw hole, 102. connecting holes, 2. bushings, 201. second screw holes, 202. central through holes, 3. push rods, 301. guide grooves, 4. lead To screw, 5. springs, 6. cylinders, 7. fixtures, 8. clamp bases, 9. crankcases, 10.R grooves, 11. silencing cavities.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this Utility model, it is not used to limit the utility model.

As long as in addition, technical characteristic involved in each embodiment of the utility model disclosed below each other it Between do not form conflict can be mutually combined.

The primary structure such as accompanying drawing 1~6 of the auxiliary support mechanism for being applied to crankcase processing in one preferred embodiment It is shown, wherein, Fig. 1 is the overall structure signal of the auxiliary support mechanism for being applied to crankcase processing of the utility model embodiment Figure；Fig. 2 is that the assembling of the auxiliary support mechanism for being applied to crankcase processing and crankcase fixture of the utility model embodiment is closed Owner's view；Fig. 3 is the auxiliary support mechanism and crankcase fixture that are applied to crankcase processing of the utility model embodiment Assembly relation top view；Fig. 4 is the fixed seat of the auxiliary support mechanism for being applied to crankcase processing of the utility model embodiment Structural representation, wherein, Fig. 4 (a) is the right view of fixed seat, and Fig. 4 (b) is the axial sectional view of fixed seat；Fig. 5 is this practicality The push rod structure schematic diagram of the auxiliary support mechanism for being applied to crankcase processing of new embodiment, wherein, Fig. 5 (a) is push rod Front view, Fig. 5 (b) is the top view of push rod；Fig. 6 is the auxiliary branch for being applied to crankcase processing of the utility model embodiment The bush structure schematic diagram of support mechanism, wherein, Fig. 6 (a) is the sectional view of bushing, and Fig. 6 (b) is bushing along B-B direction sectional view.

Further, in a preferred embodiment be applied to crankcase processing auxiliary support mechanism as shown in figure 1, its Include fixed seat 1, bushing 2, push rod 3, guider screw 4, spring 5 and cylinder 6.Further specifically, fixed seat 1 is cut for longitudinal direction Face is rectangle, and lateral cross section is the column pedestal of square, and clamp base is fixed in its bottom surface with a number of fixture 7 On 8, the level altitude of the corresponding fixture upper crankcase 9 of setting height of fixed seat 1 is set；Laterally offered in fixed seat 1 certain The ladder hole of size, one end of ladder hole correspond to the position for the crankcase 9 fixed on fixture, set on the end face of the other end It is equipped with cylinder 6；It is further preferred that ladder hole is smaller close to the side internal diameter of crankcase 9, and on the side of fixed seat 1 Offer the first screw hole 101 of horizontal vertical riser through hole axis of pitch, the axis of the first screw hole 101 and ladder hole Axis is intersecting and vertical, and the outer surface of both ends connection fixed seat 1 of the first screw hole 101 and the internal face of ladder hole.

Further, the bushing 2 in a preferred embodiment is as shown in fig. 6, wherein, bushing 2 is that middle part offers center Through hole 202, its internal diameter match setting with the external diameter of push rod 3 so that push rod 3 can be penetrated from one end of central through hole 202 and from The other end passes；Further, the periphery wall of bushing 2 is designed as multi-diameter shaft form, and one is being provided with close to the place of a side end Determine the step surface of height, i.e. the external diameter of the one end of bushing 2 is more than the external diameter of the other end, and certain altitude is formed in the intersection for becoming external diameter Step surface, the axis of step surface preferred vertical bushing 2 sets；Further, the external diameter size of the smaller one end of the external diameter of bushing 2 with The less one end of internal diameter is adapted in ladder hole in fixed seat 1 so that it can be inserted in ladder hole, and with step surface with The wall of ladder hole side is in contact and bushing 2 is limited to certain position in fixed seat 1；Further, the external diameter of bushing 2 The second screw hole 201 of connection central through hole 202 is radially offered on the periphery wall of smaller one end, the second screw hole 201 is opened If position can cause bushing 2 to penetrate in fixed seat 1, ladder hole is behind one end of crankcase 9, the first screw hole 101 and Two screw holes 201 can be aligned and connected, i.e., guider screw 4 enters from the first screw hole 101 on the lateral surface of fixed seat 1, wears The second screw hole 201 for crossing on bushing 2 simultaneously passes.

Further, push rod 3 matches setting with bushing 2, and the push rod 3 in a preferred embodiment is as shown in figure 5, wherein push up It is in cylindrical posts that bar 3 is overall, and the external diameter of push rod 3 matches setting with the internal diameter of bushing 2 so that push rod 3 can be from the one of bushing 2 It is inserted in central through hole 202 and is passed from the other end in end；Further, the both side ends of push rod 3 respectively with the piston of cylinder 6 and The bottom surface matching of crankcase 9, wherein, the end set that one end is matched with piston is slightly larger than the shaft shoulder shape of the external diameter of push rod 3 for external diameter Formula so that when push rod 3 matches with bushing 2, a side end of push rod 3 is unlikely to pass from the central through hole 202 of bushing 2；Enter One step, push rod 3 is provided with one end that spring 5 is set in push rod 3, and spring 5 is carried out by the shaft shoulder before being matched with bushing 2 It is spacing to cause spring 5 to be unlikely to skid off from the other end after being inserted in from one end of push rod 3, by the push rod 3 and bushing of sheathed spring 5 2 match so that one end of spring 5 contacts with the shaft shoulder of push rod 3, and the end contact of the other end and bushing 2 to push rod 3 so as to exist Position in bushing 2 is defined, and spring 5 is in relaxed state when initial, and the end of the side of central through hole 202 is passed through on push rod 3 Portion is away from crankcase 9；Further, one end end set of push rod 3 through central through hole 202 has in the oblique of certain angle of inclination Face, for when push rod 3 works, so that inclined-plane contacts with the bottom surface of crankcase 9 and realizes the Auxiliary support to crankcase 9, show and It is clear to, push rod 3 is inserted in after central through hole 202, and the inclined-plane on a side end is set upward；Further, the periphery wall of push rod 3 On along its axis direction offer certain length and guide groove 301 with certain depth so that under original state bushing 2 with it is solid After the matching connection of reservation 1, the second screw hole 201 on bushing 2 can lean on guide groove 301 on the push rod 3 that is inserted in bushing 2 The one end on close end inclined-plane aligns, i.e., now the first screw hole 101, the second screw hole 201 align with guide groove 301, is oriented to spiral shell Nail 4 can penetrate from the first screw hole 101 and pass through the second screw hole 201, be inserted with end in guide groove 301, so as to realize Push rod 3 is defined in bushing 2 during transverse shifting to its moving direction and movable length, prevents push rod 3 in moving process Rotate so as to ensure the inclined-plane of the one end of push rod 3 all the time upward, open up length and the depth of guide groove 301 do not do specific limit It is fixed, can be specifically chosen according to being actually needed.

Further, the end set of the larger side of ladder hole internal diameter has cylinder 6 in fixed seat 1, and it is with piston and top The shaft shoulder end of bar 3 matches effect, drives piston movement from cylinder 6 so as to promote push rod 3 to overcome the elastic force of spring 5 to close to bent The direction motion of axle box 9；It is further preferred that cylinder 6 is fixed with fixed seat 1 with connector, and accordingly, a preferred embodiment In fixed seat 1 on several through holes passed through for connector are offered along ladder hole axis direction, connector passes through above-mentioned Through hole is simultaneously connected with end with cylinder 6, cylinder 6 is fixed on the one end side of fixed seat 1.

It is further preferred that bushing 2 close to the end of crankcase 9, i.e., it stays in the side of fixed seat 1 after being matched with fixed seat 1 On part beyond face, the end portion of bushing 2 protrudes from the upper part of bushing 2, between end portion and upper part with Arcwall face is connected, so that after the end face of the inclined-plane protrusion bushing 2 of push rod 3, the perisporium of bushing 2 will not be higher by for the setting of arcwall face Inclined-plane and influence support of the inclined-plane to crankcase 9, further, the end construction of above-mentioned bushing 2 can be analogized in the end of bushing 2 Top intercepted a part along camber line, plane where the preferably concordant axis of bushing 2 in lower section of camber line or the slightly below plane, lining After set 2 intercepts the part, the end face both sides of bushing 2 are in same level, as shown in Figure 6；Further, the end of push rod 3 The upper side of one end connection push rod 3 on opened up inclined-plane, the plane or slightly higher where the concordant axis of push rod 3 of the other end on inclined-plane In the plane, as shown in Figure 5.

, first will be solid the course of work of the auxiliary support mechanism suitable for crankcase processing in one preferred embodiment Reservation 1 fix with the clamp base 8 of the fixture side of crankcase 9, it is firm with fixture 7, assemble successively bushing 2, push rod 3, Guider screw 4 and spring 5, and cylinder 6 is fastened in fixed seat 1, it is matched with piston with the end of push rod 3, bent axle After case 9 is fixed on fixture, cylinder 6 is started working, and promotes push rod 3 to overcome the elastic force of spring 5 along guide groove 301 with piston Direction it is mobile and close to crankcase 9, and crankcase R grooves 10 to be processed and/or silencing cavity are gently held out against with the end chamfer of push rod 3 The back side of 11 1 side end faces, cylinder 6 keep pressure push rod 3 is provided Auxiliary support for crankcase 9, then carried out to R grooves 10 and/or the manufacturing procedure of silencing cavity 11, after machining, cylinder 6 is stopped, and push rod 3 is made in the recovery elastic force of spring 5 With lower remote crankcase 9, and in the spacing lower return of guider screw 4, crankcase 9 is removed from fixture, completes the R of crankcase 9 Groove 10 and/or silencing cavity 11 process overall process.

As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change Enter, should be included within the scope of protection of the utility model.

Claims (7)

1. a kind of auxiliary support mechanism suitable for crankcase processing, it is arranged in the clamp base (8) of clamping crankcase (9), It is characterised in that it includes：

Fixed seat (1), the fixed seat (1) is fixed in the clamp base (8) with its bottom and its top offers connection The through hole of both sides end face；

Bushing (2), the bushing (2) are fixedly installed in one end of the through hole, and its middle part axially offers connection both ends Central through hole (202)；

Push rod (3), the push rod (3) is through the central through hole (202) on the bushing (2) and can be slided with respect to its axial reciprocating Dynamic, one side end is opened up as the inclined-plane with certain angle of inclination, for being matched with the face to be supported of crankcase to be supported (9) Contact, its end side, which is located in the through hole, and its end periphery is outwardly forms shaft shoulder structure；

Spring (5), it is set on the push rod (3) and abutted with one side end with the shaft shoulder, its end side with The end face that the bushing (2) is located in the through hole abuts；And

Cylinder (6), the cylinder (6) are fixed on the end of remote crankcase (9) side of the fixed seat (1) through hole, It includes the piston being arranged in the fixed seat (1) through hole, and one end that the shaft shoulder can be provided with the push rod (3) matches, described Push rod (3) can overcome the elastic force of the spring (5) so as to the stretching from above-mentioned central through hole (202) under the promotion of the piston And the face to be supported of the crankcase (9) is held out against with its end chamfer, so as to realize the Auxiliary support to the crankcase (9).

2. the auxiliary support mechanism according to claim 1 suitable for crankcase processing, wherein, the push rod (3) is used for The end set of Auxiliary support is conical structure, i.e., the face to be supported of the crankcase (9) is abutted with circular conical surface so as to realize To its Auxiliary support.

3. the auxiliary support mechanism according to claim 1 or 2 suitable for crankcase processing, wherein, push rod (3) end The angle of inclination on portion inclined-plane is 15 °~25 °.

4. the auxiliary support mechanism according to claim 1 or 2 suitable for crankcase processing, wherein, push rod (3) end The angle of inclination on portion inclined-plane is 20 °.

5. the auxiliary support mechanism according to claim 1 or 2 suitable for crankcase processing, wherein, on the push rod (3) Offer guide groove (301), the first screw hole (101) is offered respectively in the side wall of the fixed seat (1) and the bushing (2) With the second screw hole (201), guider screw (4) can sequentially pass through first screw hole (101), second screw hole (201) and stretched into its end in the guide groove (301) and realize to the guiding in the push rod (3) reciprocatory movement and It is spacing.

6. the auxiliary support mechanism according to claim 1 or 2 suitable for crankcase processing, wherein, the bushing (2) One end is protruded from outside the end of the fixed seat (1) through hole, and the end corresponds to the end chamfer of the push rod (3) and is arranged to oblique Face shape, its end chamfer is not influenceed from the bushing (2) after the central through hole (202) stretching for the push rod (3) The end of the Auxiliary support of the crankcase (9), while the bushing (2) can be provided for the bottom surface of the push rod (3) end Support.

7. the auxiliary support mechanism according to claim 6 suitable for crankcase processing, wherein, bushing (2) end Inclined-plane be arcwall face in certain radian, and match with the end chamfer of the push rod (3).