CN203665166U

CN203665166U - Fixture structure for machining of chute of plunger

Info

Publication number: CN203665166U
Application number: CN201320892039.XU
Authority: CN
Inventors: 马军; 沈环
Original assignee: WUXI WEIFU MASHAN OIL PUMP AND OIL NOZZLE Co Ltd
Current assignee: WUXI CITY PEIJI MACHINERY CO., LTD.
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-06-25
Anticipated expiration: 2023-12-31

Abstract

The utility model relates to a fixture structure for machining of a chute of a plunger. The fixture structure comprises a base plate, wherein the base plate is connected with a bottom plate through a locating round pin in a locating mode. A first tip mechanism and a fixture mechanism are located on the bottom plate and fixedly connected to the bottom plate. A second tip mechanism is arranged in the fixture mechanism. A locating mechanism is further arranged on the fixture mechanism. According to the fixture structure, a negative tip and a positive tip are used for clamping a center hole in one end of the plunger and a cap at the other end of the plunger respectively, so that the centers of circle at the two ends of the plunger are located, and the locating datum is consistent with the reference datum. By the adoption of the locating mechanism, a locating block of the locating mechanism is attached to the flat surface of the plunger, the relative position of the plunger in the axis direction is adjustable through the negative tip and the positive tip, and the rotation direction and the machining angle are adjustable through a dial.

Description

A kind of clamp structure for the processing of plunger skewed slot

Technical field

The utility model relates to clamp structure, especially a kind of clamp structure for the processing of plunger skewed slot.

Background technology

At present, plunger skewed slot clamp for machining is to utilize " V " shape piece to coordinate plunger end face to position, and is coordinated and is compressed plunger by pressing plate and screw, and the installation way of this fixture exists following shortcoming:

(1) processing of plunger is with excircle orientation, high to the excircle dimension coherence request of plunger.

(2) pretightning force providing when operating personnel put plunger needs consistent, crosses pine or tension and all can cause gauge to scrap in the time measuring skewed slot.

(3) plunger easily moves in clamping process, causes gauge size overproof.

(4) because piston structure need to be processed two sides skewed slot, therefore need clamping twice, cause clamping frequency high, greatly waste process time, waste time and energy, and reduced machining accuracy.

(5) because plunger kind is more, angle between the flat position of its processing skewed slot and plunger (flat position is a flat plane on plunger) is different, therefore a sleeve clamp is only applicable to a kind, plunger for inhomogeneity kind need to be processed different fixtures, design and manufacture cost is large, stock buildup amount.

Utility model content

The applicant, for above-mentioned existing issue, is studied improvement, and a kind of clamp structure for the processing of plunger skewed slot is provided, and its easy operating utilizes its precision of product, the symmetry of the utility model processing high, and dimensional uniformity is good.

The technical scheme that the utility model adopts is as follows:

A kind of clamp structure for the processing of plunger skewed slot, comprise chassis, described chassis is connected with the finger setting of base plate setting circle, be positioned at affixed the first tip mechanism of difference and clamp mechanism on described base plate, the second tip mechanism is installed on the inside of described clamp mechanism, returning apparatus detent mechanism on described clamp mechanism;

The concrete structure of described clamp mechanism is as follows: comprise by securing member and the affixed clamp body of described base plate, one end of clamp body is connected with cylinder, the other end of clamp body and the raised head face of dial connect, and one end of described dial stretches out and stretches in described clamp body;

The concrete structure of described the second tip mechanism is as follows: comprise the sliding sleeve being installed in dial; One end of connecting rod is threaded with the output of described cylinder, and the other end of connecting rod stretches in described dial, and top connection of the moon in being installed on sliding sleeve by spring catch with device;

The concrete structure of described the first tip mechanism is as follows: comprise the tailstock affixed with base plate, center sleeve through-going device is in described tailstock, and the interior arrangement sun that is positioned at described center sleeve is top, and positive top one end is by the second spring and stretch into the locking cap butt in tailstock.

Its further technical scheme is:

The structure of described detent mechanism is as follows: comprise the positioning base being connected with dial, install positioning sleeve on positioning base, the end of locating piece is stretched in described positioning sleeve and is connected with one end of the second spring, and the other end of described the second spring is connected with plug screw.

The beneficial effects of the utility model are as follows:

The utility model is simple in structure, easy for installation, and it has the following advantages:

(1) the utility model, by cloudy top and positive top, clamps respectively centre bore and the other end block of plunger one end, has realized the location, the center of circle to plunger two ends, makes positioning datum and to relate to benchmark consistent.

(2) by adopting detent mechanism, and utilize the locating piece of detent mechanism and the flat plane of plunger to fit, and by the moon, top and positive top to have realized plunger axis direction relative position adjustable, realized the controllability of gyratory directions and machining angle by dial.

(3) by location, the center of circle is carried out in plunger two ends, avoid conventional brace to use pressing plate clamping to be prone to the problem of axial displacement, the utility model contacts not on the outer round surface of plunger with the hard power of workpiece, therefore also avoid plunger surface to be scratched scratch and cause scrap phenomenon.

(4) because the moon is top and the positive top relative position at plunger axis direction is adjustable, therefore be applicable to the plunger of banker various sizes, the different control oil grooves (as straight trough, skewed slot, helicla flute, bottom clearance groove etc.) that require of processing, reduce the design cost of enterprise, reduce memory space, be convenient to management.

(5) can realize the coupled columns just processing of two skewed slots beyond the Great Wall by clamped one time, process time is short, has reduced clamping frequency, has realized people's multi-machine operation, has improved personnel's utilization ratio, has reduced entreprise cost, has improved production efficiency.

Accompanying drawing explanation

Fig. 1 is sectional structure schematic diagram of the present utility model.

Wherein: 1, chassis; 2, base plate; 3, round pin; 4, the first spring; 5, plug screw; 6, securing member; 7, spring catch; 8, cylinder; 9, connecting rod; 10, clamp body; 11, dial; 111, raised head face; 12, locating piece; 13, positioning sleeve; 14, locking nut; 15, plunger; 16, center sleeve; 17, sun is top; 18, the second spring; 19, locking cap; 20, tailstock; 21, positioning base; 22, cloudy top; 23, sliding sleeve.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.

As shown in Figure 1, a kind of clamp structure for the processing of plunger skewed slot, comprise chassis 1, chassis (1) is located round pin 3 with base plate 2 and is located by connecting, be positioned at affixed the first tip mechanism of difference and clamp mechanism on base plate 2, the second tip mechanism is installed on the inside of clamp mechanism, returning apparatus detent mechanism on described clamp mechanism;

The concrete structure of described clamp mechanism is as follows: comprise the clamp body 10 affixed by securing member 6 and base plate 2, one end of clamp body 10 is connected with cylinder 8, the raised head face 111 of the other end of clamp body 10 and dial 11 connects, and one end of dial 11 stretches out and stretches in clamp body 10;

The concrete structure of the second tip mechanism is as follows: comprise the sliding sleeve 23 being installed in dial 11; One end of connecting rod 9 is threaded with the output of cylinder 8 and by nut check, the other end of connecting rod 9 stretches in dial 11, and the moon top 17 being installed in sliding sleeve 23 by spring catch 7 and device is connected;

The concrete structure of the first tip mechanism is as follows: comprise the tailstock 20 affixed with base plate 2, center sleeve 16 through-going devices are in described tailstock 20, be positioned at the interior arrangement sun of described center sleeve 16 top 17, one end of sun top 17 by the second spring 18 with stretch into locking cap 19 butts in tailstock 20.

The structure of detent mechanism is as follows: comprise the positioning base 21 being connected with dial 11, on positioning base 21, install positioning sleeve 13, the end of locating piece 12 is stretched in positioning sleeve 13 and is connected with one end of the second spring 18, and the other end of described the second spring 18 is connected with plug screw 5.

Specific works process of the present utility model is as follows:

As shown in Figure 1, first cylinder 8 is worked, its output moves and drives connected connecting rod 9 at sliding sleeve 23 intrinsic displacements, drive thus cloudy top 22 to stretch out, the one end then plunger 15 to 60 ° of caps is stretched in cloudy top 22, then the other end of plunger 15 is contacted with sun top 17, sun top 17 is inwardly shunk by the power of the second spring 18, then stretching out and basis mutually, the center of circle of plunger 15 other ends, then pass through manually rotary plunger 15 slightly, make the seamless butt of plane of the flat plane of plunger 15 and the locating piece 12 of detent mechanism, then according to the angle of skewed slot on required processing plunger, by rotation scale 11, locating piece 12 by detent mechanism is with turning, make the angle of plunger 15 rotations to required processing, can process skewed slot.

More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection domain of the present utility model, can be done any type of modification.

Claims

1. the clamp structure for the processing of plunger skewed slot, it is characterized in that: comprise chassis (1), described chassis (1) is located by connecting with base plate (2) location round pin (3), be positioned at described base plate (2) upper affixed the first tip mechanism and clamp mechanism respectively, the second tip mechanism is installed on the inside of described clamp mechanism, returning apparatus detent mechanism on described clamp mechanism;

The concrete structure of described clamp mechanism is as follows: comprise the clamp body (10) affixed by securing member (6) and described base plate (2), one end of clamp body (10) is connected with cylinder (8), the raised head face of the other end of clamp body (10) and dial (11) connects, and one end of described dial (11) stretches out and stretches in described clamp body (10);

The concrete structure of described the second tip mechanism is as follows: comprise the sliding sleeve (23) being installed in dial (11); One end of connecting rod (9) is threaded with the output of described cylinder (8), and the other end of connecting rod (9) stretches in described dial (11), and the moon top (17) being installed in sliding sleeve (23) by spring catch (7) and device is connected;

The concrete structure of described the first tip mechanism is as follows: comprise the tailstock (20) affixed with base plate (2), center sleeve (16) through-going device is in described tailstock (20), be positioned at the interior arrangement sun top (17) of described center sleeve (16), one end of sun top (17) is by the second spring (18) and locking cap (19) butt stretching in tailstock (20).

2. a kind of clamp structure for the processing of plunger skewed slot as claimed in claim 1, it is characterized in that: the structure of described detent mechanism is as follows: comprise the positioning base (21) being connected with dial (11), the upper device positioning sleeve (13) of positioning base (21), the end of locating piece (12) is stretched in described positioning sleeve (13) and is connected with one end of the second spring (18), and the other end of described the second spring (18) is connected with plug screw (5).