Fixture for fine grinding of conical surface of air valve

Abstract

The utility model relates to the technical field of valve machining, in particular to a valve conical surface accurate grinding clamp which comprises a clamping table. Second inclined blocks are symmetrically arranged on the two sides of the upper end of the middle of the clamping table, and a clamping mechanism is arranged outside the side, close to the second inclined blocks, of the clamping table in the same direction; and the clamping head is fixedly installed at the ends, away from the clamping mechanism, of the two second inclined blocks, and a discharging mechanism is arranged in the middle of the side, close to the clamping head, of the clamping table. The second inclined block, the first inclined block, the cam, the worm and the worm gear are used in cooperation, a valve to be polished is placed on the movable plate and located between the two chucks, then the hand wheel is rotated, the hand wheel controls the transmission shaft to rotate, the transmission shaft drives the worm to rotate when rotating, the worm drives the worm gear to rotate when rotating, and the worm gear drives the cam to swing when rotating. When the cam swings, the ejector block is pushed forwards, the ejector block controls the two second inclined blocks to move in the same direction through the first inclined block, the two second inclined blocks drive the chuck to clamp the valve when moving, and therefore the valve can be quickly centered during clamping.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve machining technical field, concretely is a kind of clamp for valve cone surface fine grinding. BACKGROUND

[0002] The function of valve is specially responsible for inputting air into engine and discharging waste gas after combustion. From engine structure, it is divided into intake valve and exhaust valve. The function of intake valve is to suck air into engine and burn with fuel;The function of exhaust valve is to discharge waste gas after combustion and radiate heat, clamp is needed when valve cone surface is finely ground.

[0003] As the authorized announcement No. CN220762317U discloses a kind of valve body machining clamp, it includes main body, including support frame, the surface of support frame is fixedly connected with fixed block;Anti-deviation mechanism, including knob, the surface of fixed block is movably connected with the knob, the surface of the knob is fixedly connected with gear, the surface of support frame is slidably connected with first rack. After the above technical scheme, the beneficial effects of the utility model are as follows: the valve head part will not deviate during processing, improve the quality of valve body processing, reduce the waste of material.

[0004] The above-mentioned patent can clamp valve, but fixed block and extrusion block cannot automatically keep in the middle when clamping, and the position of fixed block needs to be manually adjusted every time when clamping valves of different specifications, so that the operation is complicated when clamping. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of clamp for valve cone surface fine grinding to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of clamp for valve cone surface fine grinding, including

[0008] Clamping table;

[0009] The middle upper end of the clamping table is symmetrically provided with inclined block two on both sides, and the same side outside close to inclined block two of the clamping table is provided with clamping mechanism;

[0010] Chuck, the chuck is fixedly installed at one end of two inclined blocks two away from clamping mechanism, and the middle part of the side close to chuck of clamping table is provided with blanking mechanism.

[0011] Preferably, the clamping mechanism includes inclined block one, the inclined block one is movably installed on the side of clamping table away from two chucks, and the end of two inclined blocks one away from inclined block two is provided with top block, and cam is movably installed on the outside close to top block of clamping table;

[0012] Preferably, the clamping mechanism further comprises a transmission shaft movably mounted to the inside of the middle part of the clamping table, one end of the transmission shaft near the cam is provided with a hand wheel, one end of the transmission shaft near the hand wheel is provided with a worm, the bottom end of the cam is provided with a worm wheel, and the worm wheel is movably connected with the worm;

[0013] Preferably, the discharging mechanism comprises a discharging groove, the discharging groove is arranged at the end of the clamping table away from the cam, and the inside of the discharging groove is movably provided with a movable plate; and the side of the transmission shaft near the movable plate is transversely provided with a blocking strip.

[0014] Preferably, the middle part of the clamping table is transversely provided with a guide groove, the guide groove is fixedly provided with a guide rod, the bottom end of each of the two inclined blocks one is movably sleeved with the guide rod, and the back of the inclined block two is provided with a spring outside the guide groove and the guide rod.

[0015] Preferably, the clamping table is provided with a guide rail outside the side of the inclined block one, and the back of the inclined block one is provided with a guide strip in sliding connection with the guide rail.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1. The clamp for valve cone surface fine grinding, through cooperation between the inclined block two, the inclined block one, the cam, the worm and the worm wheel, the valve to be polished is placed on the movable plate and located between the two clamping heads, then the hand wheel is rotated, the hand wheel controls the rotation of the transmission shaft, the transmission shaft drives the rotation of the worm when rotating, the worm drives the rotation of the worm wheel when rotating, the worm wheel drives the swinging of the cam when rotating, the cam pushes the front pushing block when swinging, the pushing block controls the same-direction movement of the two inclined blocks two through the inclined block one, and the two inclined blocks two drive the clamping head to clamp the valve when moving, so that the valve can be quickly centered when clamped.

[0018] 2. The clamp for valve cone surface fine grinding, through cooperation between the transmission shaft, the blocking strip, the discharging groove and the movable plate, when the hand wheel controls the swinging of the cam, the blocking strip at the end of the transmission shaft swings synchronously and supports below the movable plate, after polishing is completed, the hand wheel drives the movable plate to rotate through the transmission shaft, at this time, the movable plate is turned down to discharge the polished valve from the discharging groove, so that the purpose of convenient discharging is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a blocking strip installation structural schematic diagram of the utility model;

[0021] Figure 3 It is a Figure 1 It is an enlarged schematic diagram of the middle A;

[0022] Figure 4 The utility model discloses a Figure 1 Amplification schematic view of B place.

[0023] In the figure: 1, clamp table; 2, inclined block two; 3, chuck; 4, inclined block one; 5, top block; 6, cam; 7, transmission shaft; 8, hand wheel; 9, worm; 10, worm wheel; 11, blanking groove; 12, movable plate; 13, baffle; 14, guide groove; 15, guide rod; 16, spring; 17, guide rail; 18, guide strip. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] As Figures 1-4 indicated, a technical scheme provided by the utility model discloses a kind of:

[0026] A kind of clamp for valve cone precision grinding, including clamp table 1;The middle part upper end both sides of clamp table 1 are symmetrically provided with inclined block two 2, clamp table 1 is close to the same side outside of inclined block two 2 and is provided with clamping mechanism, clamping mechanism includes inclined block one 4, inclined block one 4 is movably installed in the side of clamp table 1 away from two chucks 3, two inclined block one 4 is provided with top block 5 away from inclined block two 2 one end, cam 6 is movably installed in the outside of clamp table 1 close to top block 5, clamping mechanism further includes transmission shaft 7, transmission shaft 7 is movably installed in the middle part one side inside of clamp table 1, transmission shaft 7 is provided with hand wheel 8 close to cam 6 one end, transmission shaft 7 is provided with worm 9 close to hand wheel 8 one end, the bottom of cam 6 is provided with worm wheel 10, worm wheel 10 is movably connected with worm 9, the middle part of clamp table 1 is provided with guide groove 14 transversely, guide groove 14 is movably connected with guide rod 15 and is fixedly installed in the inside, the bottom of two inclined block one 4 is movably connected with guide rod 15, spring 16 is movably connected with guide groove 14 and is located outside guide rod 15 on the back of inclined block two 2, guide rail 17 is provided on the outside of clamp table 1 close to inclined block one 4, the back of inclined block one 4 is provided with guide strip 18 and is slidably connected with guide rail 17;

[0027] In this embodiment, the valve to be polished is placed on the movable plate 12 between the two clamping heads 3, and the hand wheel 8 is turned to control the rotation of the transmission shaft 7, which drives the rotation of the worm 9, which drives the rotation of the worm gear 10, which drives the oscillation of the cam 6, which drives the forward pushing of the top block 5, which controls the same direction movement of the two inclined blocks two 2 through the inclined block one 4, and the two inclined blocks two 2 drive the clamping head 3 to clamp the valve, so that the valve can be quickly centered when clamped.

[0028] As shown in Figure 2 The clamping head 3 is fixedly installed at the end of the two inclined blocks two 2 away from the clamping mechanism, and the clamping table 1 is provided with a discharging mechanism at the middle of the side close to the clamping head 3, and the discharging mechanism comprises a discharging groove 11, which is formed at the end of the clamping table 1 away from the cam 6, and the inside of the discharging groove 11 movably installs a movable plate 12, and the transmission shaft 7 is provided with a blocking strip 13 transversely at the side close to the movable plate 12.

[0029] In this embodiment, when the hand wheel 8 controls the oscillation of the cam 6, the blocking strip 13 at the end of the transmission shaft 7 oscillates synchronously and supports under the movable plate 12, and when the polishing is completed, the hand wheel 8 is turned over to drive the movable plate 12 to rotate through the transmission shaft 7, and at this time the movable plate 12 is turned down to discharge the polished valve from the discharging groove 11, so as to achieve the purpose of convenient discharging.

[0030] Working principle: when working, the valve to be polished is placed on the movable plate 12 between the two clamping heads 3, and the hand wheel 8 is turned to control the rotation of the transmission shaft 7, which drives the rotation of the worm 9, which drives the rotation of the worm gear 10, which drives the oscillation of the cam 6, which drives the forward pushing of the top block 5, which controls the same direction movement of the two inclined blocks two 2 through the inclined block one 4, and the two inclined blocks two 2 drive the clamping head 3 to clamp the valve; when the hand wheel 8 controls the oscillation of the cam 6, the blocking strip 13 at the end of the transmission shaft 7 oscillates synchronously and supports under the movable plate 12, and when the polishing is completed, the hand wheel 8 is turned over to drive the movable plate 12 to rotate through the transmission shaft 7, and at this time the movable plate 12 is turned down to discharge the polished valve from the discharging groove 11.

[0031] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A valve cone lapping jig characterized by: The utility model provides a kind of clamp, including Clamp (1); The middle upper end of the clamp (1) is symmetrically provided with inclined block two (2), and the same side of the clamp (1) close to inclined block two (2) is provided with clamping mechanism outside; Chuck (3), the chuck (3) is fixedly installed at the end of two inclined block two (2) away from clamping mechanism, and the middle of the side of the clamp (1) close to chuck (3) is provided with blanking mechanism; The clamping mechanism includes inclined block one (4), the inclined block one (4) is movably installed at the side of the clamp (1) away from two chuck (3), and the end of two inclined block one (4) away from inclined block two (2) is provided with top block (5), and the outer side of the clamp (1) close to top block (5) is movably installed with cam (6); The clamping mechanism further includes transmission shaft (7), the transmission shaft (7) is movably installed at the middle side of the clamp (1) inside, the end of the transmission shaft (7) close to cam (6) is provided with hand wheel (8), the end of the transmission shaft (7) close to hand wheel (8) is provided with worm (9), the bottom end of the cam (6) is provided with worm wheel (10), and the worm wheel (10) is movably connected with worm (9); The blanking mechanism includes blanking groove (11), the blanking groove (11) is opened at the end of the clamp (1) away from cam (6), the inside of the blanking groove (11) is movably installed with movable plate (12), and the side of the transmission shaft (7) close to movable plate (12) is transversely provided with baffle (13); The middle of the clamp (1) is transversely provided with guide groove (14), the inside of the guide groove (14) is fixedly installed with guide rod (15), the bottom end of two inclined block one (4) is movably sleeved with guide rod (15), and the back of inclined block two (2) and guide groove (14) are provided with spring (16) outside guide rod (15); The outer side of the clamp (1) close to inclined block one (4) is provided with guide rail (17), and the back of the inclined block one (4) is provided with guide strip (18) slidably connected with guide rail (17).

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