CN205271723U - Fixing device for end cover polishes - Google Patents

Abstract

The utility model discloses a fixing device for end cover polishes, including hollow frame, pass through welded fastening between workstation and the frame upper portion, wherein the bracket is arranged in the cavity of frame, bracket circumference equipartition has three linking arm, press from both sides tight unit including the tight arm of arranging in proper order of clamp from bottom to top, the guide bar, extension spring and clamping jaw, wherein the guide bar is pegged graft between workstation and frame, it has the gliding through -hole of the three confession tight arm of clamp to open on the workstation, the clamping jaw passes through the fix with screw and is pressing from both sides tight arm upper end, it connects at the linking arm middle part to press from both sides tight underarm end hinge, cup joint on the guide bar linking arm outer end, and the extension spring is cup jointed on the guide bar, the extension spring upper end offsets with the workstation bottom surface, extension spring lower extreme and linking arm upper end counterbalance, location round platform lower extreme inlay work table center department, with the workstation finger setting and pass through the fix with screw, cup joint in push rod upper end and fixed through threaded cap and push rod at the bracket center, this scheme simple structure, the processing ease, the quick clamping cylinder end cap of being convenient for is raised the efficiency.

Description

Polishing end cap stationary installation

Technical field

The utility model relates to automobile part production technique field, is specifically related to a kind of polishing end cap stationary installation.

Background technology

Automobile refers to fuel or the novel energies such as battery, sun power such as using gasoline, diesel oil, Sweet natural gas, the transportation means being used as power by engine. Generally there is four or more wheel, do not rely on track or stringing and the vehicle that can travel on land.

Cylinder is the empty room of in-engine round shape, and there is a piston promoted by the pressure of working fluid or bulging force the inside, similar in some special h type engine h but the part of non-cylindrical.

Cylinder end cap is positioned at cylinder end, it is used to fixed crankshaft etc. and rotates parts, owing to cylinder end cap is generally what casting was made, there is burr in shaping rear surface, it is necessary to polishes, and usually adopts and twist the fixing mode of screw by folder pawl in currently available technology, need manually to turn screw to be fixed by cylinder end cap, then carrying out polishing processing, this kind of fixing mode efficiency is lower, and labour intensity is big.

Practical novel content

The utility model is intended to provide a kind of polishing end cap stationary installation, to improve fixed efficiency.

Polishing end cap stationary installation in this scheme, comprise the frame of hollow, also comprise the bracket being disposed with in frame from bottom to top, three clamping units, cam, cam permanent seat, worktable and positioning round table, by being welded and fixed between worktable and frame, wherein bracket is arranged in the cavity of frame, bracket circumference is evenly equipped with three connecting arms, clamping unit comprises the pull bar arranged successively from top to bottom, spring fixed seat, stage clip, folder pawl, roll up spring and it is positioned at the rest pad of bench top, wherein spring fixed seat welds with worktable bottom surface, and pull bar upper end also and presss from both sides in the middle part of pawl hinged through spring fixed seat, volume spring is arranged between in the middle part of pull bar upper end and folder pawl, the lower end of pull bar is then socketed with connecting arm and passes through nut anti-falling, folder pawl upper outer end can offset with rest pad, bench top is also bumped into positioning pin column, located by pin between positioning round table and worktable and pass through bolt-connection, cam permanent seat is bolted in worktable bottom surface, cam rotation is arranged on cam permanent seat and passes through driving stepper motor, cam and bracket offset.

Push rod is by air cylinder driven.

During use, cylinder end cap is placed on worktable, the middle part of cylinder end cap is buckled on positioning round table, then control cylinder drives push rod to move downward, due to, carrier center is socketed in push rod upper end and is fixed by threaded cap and push rod, and therefore bracket moves down, connecting arm overcome spring resistance drive clamp arm move down, folder pawl thus by cylinder end cap fixation together with worktable.

After machining, stopping to insufflation gas in cylinder, push rod is no longer applied downward power by cylinder, and under the action of the spring, connecting arm drives clamp arm to move up, thus unclamps workpiece, can take off workpiece.

This scheme structure is simple, and processing ease, is convenient to quick-clamping cylinder end cap, it is to increase efficiency.

Further, the lower end of frame has also been connected by screw dust guard; In the built on stilts chamber of dust ingress engine in burr that avoiding polishes gets off or air, cause abrasion.

Further, the lower end of frame is also raised with guiding pin, and on push rod, correspondence has bar-shaped trough, in guiding pin insertion bar-shaped trough; Anti-throw-out lever rotates, thus it is more steady that push rod is run.

Further, outside clamp arm, have wedge shape gap, in hook-shaped inside folder pawl the inner; Clamp arm along worktable by moving up time also can outwards swing, thus be more convenient to take out cylinder end cap, folder pawl the inner be more prone to be fixed by cylinder end cap or clamping more stable.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment.

Embodiment

Below by embodiment, the utility model is described in further detail:

Reference numeral in Figure of description comprises: frame 10, anti-ship and resell on another market 11, push rod 20, threaded cap 21, clamp arm 30, bracket 31, spring 32, worktable 40, positioning round table 41, cylinder end cap workpiece 50.

Embodiment is substantially as shown in Figure 1: polishing end cap stationary installation, comprise the frame 10 of hollow, also comprise in frame 10 push rod 20 being disposed with from bottom to top, threaded cap 21, bracket 31, three clamping units, worktable 40 and positioning round table 41, by being welded and fixed between worktable 40 and frame 10 top, wherein bracket 31 is arranged in the cavity of frame 10, bracket 31 circumference is evenly equipped with three connecting arms, clamping unit comprises the clamp arm 30 arranged successively from bottom to top, tail rod, extension spring and folder pawl, wherein tail rod is plugged between worktable 40 and frame 10, worktable 40 has three through holes slided for clamp arm 30, folder pawl is fixed by screws in clamp arm 30 upper end, clamp arm 30 times ends are hinged in the middle part of connecting arm, connecting arm outer end is socketed on the guide bar, and extension spring is socketed on the guide bar, extension spring upper end and worktable 40 bottom surface offset, the lower end of extension spring and connecting arm upper end offset, positioning round table 41 times ends are bumped into worktable 40 center, sell location with worktable 40 and fixed by screw, frame 10 times ends have also been connected by screw dust guard, bracket 31 center is connected on push rod 20 upper end and is fixed by threaded cap 21 and push rod 20, frame 10 times ends are also raised with guiding pin, and correspondence has bar-shaped trough on push rod 20, in guiding pin insertion bar-shaped trough, in hook-shaped inside folder pawl the inner, wedge shape gap is had outside clamp arm 30.

Being one side two pin location between positioning round table 41 and worktable 40, axles and the holes (pilot hole) of two pins are running fit closely; One of them is cylinder pin, and another is rhombus pin, and pilot hole width between centers exists tolerance (error), if two pins are all cylinder pins, then, two pins on fixture just can not coordinate with the holes " accurately " of workpiece, and dress is not entered. After one of them makes rhombus pin, pilot hole width between centers error just can not interfere having coordinated of two pins and holes. Analyzing from location, restraint of liberty degree, two cylinder pins were location. The major axis of rhombus pin, with two pin-and-hole lines of centres, it is necessary to be vertical, otherwise just lose the effect of rhombus pin. Push rod 20 is by air cylinder driven.

During use, cylinder end cap is placed on worktable 40, the middle part of cylinder end cap is buckled on positioning round table 41, then control cylinder drives push rod 20 to move downward, due to, bracket 31 center is connected on push rod 20 upper end and is fixed by threaded cap 21 and push rod 20, and therefore bracket 31 moves down, connecting arm overcome spring 32 resistance drive clamp arm 30 move down, folder pawl thus by cylinder end cap fixation together with worktable 40.

After machining, stopping to insufflation gas in cylinder, push rod 20 is no longer applied downward power by cylinder, and under spring 32 acts on, connecting arm drives clamp arm 30 to move up, thus unclamps workpiece, can take off workpiece.

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, it is also possible to make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the novel practicality of practicality that the utility model is implemented. The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification sheets etc. record the content that may be used for explaining claim.

Claims (4)

1. polishing end cap stationary installation, it is characterized in that: the frame comprising hollow, also comprise the push rod being disposed with in frame from bottom to top, threaded cap, bracket, three clamping units, worktable and positioning round table, by being welded and fixed between worktable and upper rack, wherein bracket is arranged in the cavity of frame, bracket circumference is evenly equipped with three connecting arms, clamping unit comprises the clamp arm arranged successively from bottom to top, tail rod, extension spring and folder pawl, wherein tail rod is plugged between worktable and frame, worktable has three through holes slided for clamp arm, folder pawl is fixed by screws in clamp arm upper end, the lower end of clamp arm is hinged in the middle part of connecting arm, connecting arm outer end is socketed on the guide bar, and extension spring is socketed on the guide bar, extension spring upper end and worktable bottom surface offset, the lower end of extension spring and connecting arm upper end offset, the lower end of positioning round table is bumped into table core place, locate with worktable pin and fixed by screw, carrier center is socketed in push rod upper end and is fixed by threaded cap and push rod.

2. polishing end cap stationary installation according to claim 1, it is characterised in that: the lower end of frame has also been connected by screw dust guard.

3. polishing end cap stationary installation according to claim 2, it is characterised in that: the lower end of frame is also raised with guiding pin, and on push rod, correspondence has bar-shaped trough, in guiding pin insertion bar-shaped trough.

4. polishing end cap stationary installation according to claim 3, it is characterised in that: have wedge shape gap outside clamp arm, in hook-shaped inside folder pawl the inner.