CN215942635U

CN215942635U - Positioning and calibrating clamp for piston machining

Info

Publication number: CN215942635U
Application number: CN202121459882.XU
Authority: CN
Inventors: 魏明; 刘辉; 付伯洋; 姚亚军
Original assignee: Xi'an Yaojie Mechanical Equipment Co ltd
Current assignee: Xi'an Yaojie Mechanical Equipment Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-03-04
Anticipated expiration: 2031-06-29

Abstract

The application discloses a positioning and calibrating clamp for piston machining, which comprises a clamping structure, an adjusting structure and an installation frame, wherein a movable frame is arranged at the top end of the installation frame; the clamping structure comprises a mounting plate, a sliding groove is formed in the front side face of the mounting plate, a clamping plate is arranged on the front side of the mounting plate, a sliding block is fixedly connected to the bottom end of the clamping plate and is connected with the sliding groove in a sliding mode, and a threaded hole is formed in the side face of the sliding block; the inside screw rod that is equipped with of spout, the screw rod both ends all through the bearing with the mounting panel rotates to be connected, just the screw rod with the screw hole spiral shell closes. This application can directly place the piston between four splint, can drive the second gear through first motor this moment and rotate, can drive the screw rod under the meshing of second gear and four first gears and rotate in step, can drive splint and slide along the spout under the effect of screw rod and screw hole then, until with the fixed centre gripping of piston between four splint, be convenient for install and dismantle the piston.

Description

Positioning and calibrating clamp for piston machining

Technical Field

The application relates to the technical field of piston machining, in particular to a positioning and calibrating clamp for piston machining.

Background

The piston can be regarded as being composed of three parts, namely a top part, a head part and a skirt part; the shape of the top of the piston of the gasoline engine is related to the shape of a combustion chamber and the size of a compression ratio, most gasoline engines adopt a flat-top piston, the gasoline engine has the advantages of small heating area and simplicity in processing, and the compression ratio of the engine can be adjusted by changing the size of a pit on the top of the piston by adopting a concave-top piston; the part between the piston top and the lower end face of the oil ring groove is called a piston head, the piston head is provided with the gas ring groove and the oil ring groove which are used for installing the gas ring and the oil ring, the bottom of the oil ring groove is also provided with an oil return hole or a transverse cutting groove, and redundant engine oil scraped from the cylinder wall by the oil ring flows back to the oil pan through the oil return hole or the transverse cutting groove; the part below the piston head is a piston skirt part, the shape of the skirt part is to ensure that the piston obtains good guidance in the cylinder, and a uniform and proper clearance is kept between the cylinder and the piston under any working condition.

The structure of traditional piston location calibration anchor clamps is generally all comparatively simple, and the staff is manual usually to fix the piston and dismantle, and the dismouting is comparatively troublesome, and present piston location calibration anchor clamps are not convenient for adjust the processing according to the demand is supplementary, and the flexibility is not enough. Therefore, a positioning and calibrating clamp for piston machining is provided to solve the above problems.

Disclosure of Invention

A positioning and calibrating clamp for piston machining comprises a clamping structure, an adjusting structure and a mounting frame, wherein a movable frame is arranged at the top end of the mounting frame;

the clamping structure comprises a mounting plate, a sliding groove is formed in the front side face of the mounting plate, a clamping plate is arranged on the front side of the mounting plate, a sliding block is fixedly connected to the bottom end of the clamping plate and is connected with the sliding groove in a sliding mode, and a threaded hole is formed in the side face of the sliding block; a screw rod is arranged in the sliding groove, two ends of the screw rod are rotatably connected with the mounting plate through bearings, and the screw rod is screwed with the threaded hole; an installation cavity is formed in the installation plate, a first gear is sleeved at one end of the screw rod, a first motor is fixedly connected in the installation cavity, a second gear is sleeved at the output end of the first motor, and the first gear is in threaded connection with the second gear;

the adjusting structure comprises an air cylinder, the air cylinder is fixedly connected with the rear side face of the top end of the movable frame, a side groove is formed in the front side face of the top end of the movable frame, a movable plate is arranged in the side groove, and the output end of the air cylinder is fixedly connected with the side face of the movable plate; a movable cavity is arranged on the inner side of the side groove, a limiting plate is arranged in the movable cavity, the limiting plate is sleeved on the surface of the output end of the air cylinder, a spring is arranged on one side of the limiting plate, and the spring is sleeved on the surface of the output rod of the air cylinder; the mounting panel trailing flank with the equal rigid coupling of fly leaf lateral surface has the pinion rack, and is adjacent the pinion rack block is connected.

Further, the mounting bracket bottom is opened there is the mounting hole, the adjustable shelf is located the mounting panel top, mounting panel top side rigid coupling has the guide block, the adjustable shelf side is opened there is the guide way, just the guide block with guide way sliding connection.

Furthermore, a hydraulic rod is embedded at the top end of the mounting frame, and the output end of the hydraulic rod is fixedly connected with the bottom end of the movable frame.

Further, splint are the arc structure, four splint be the annular distribution in mounting panel leading flank, just the splint medial surface is equipped with the protection and fills up.

Further, mounting panel trailing flank rigid coupling has the connecting axle, the connecting axle outer end pass through the bearing with the adjustable shelf top rotates to be connected, adjustable shelf top trailing flank rigid coupling has the second motor, just the second motor output with connecting axle outer end rigid coupling.

Furthermore, the number of the cylinders is two, and the two cylinders are symmetrically distributed on two sides of the second motor.

Further, the movable plate is of an annular structure, and the outer side face of the movable plate and the rear side face of the mounting plate are annularly distributed with a plurality of toothed plates.

Further, the mounting bracket is convex character type structure, the adjustable shelf is concave character type structure, just the adjustable shelf with mounting bracket sliding connection.

Furthermore, the number of the first gears is four, the four first gears are annularly distributed on the surface of the second gear, and the four first gears are all in meshed connection with the second gear.

Further, the installation cavity is of a circular structure, the number of the sliding grooves is four, and the four sliding grooves are communicated with the inside of the installation cavity.

Furthermore, the protection pad and the elastic connecting band are made of heat-resistant silica gel materials.

Through the above-mentioned embodiment of this application, adopted directly to place the piston between four splint, can drive the second gear through first motor this moment and rotate, can drive the screw rod synchronous rotation under the meshing of second gear and four first gears, can drive splint to slide along the spout then under the effect of screw rod and screw hole, until with the fixed centre gripping of piston between four splint, be convenient for install and dismantle the piston.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall perspective view of an embodiment of the present application;

FIG. 2 is a schematic view of the internal structure of a mounting plate according to an embodiment of the present application;

FIG. 3 is an overall side view of one embodiment of the present application;

fig. 4 is a connection diagram of a mounting frame and a movable frame according to an embodiment of the present application.

In the figure: 1. mounting bracket, 2, mounting hole, 3, adjustable shelf, 31, guide way, 32, side groove, 33, activity, 4, mounting panel, 41, spout, 42, installation cavity, 5, splint, 51, slider, 52, screw hole, 6, screw rod, 7, bearing, 8, first gear, 9, second gear, 10, first motor, 11, pinion rack, 12, cylinder, 13, connecting axle, 14, second motor, 15, fly leaf, 16, limiting plate, 17, spring, 18, guide block, 19, hydraulic stem.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The clamp in the present embodiment can be applied to various pistons, for example, the following piston is provided in the present embodiment, and the clamp in the present embodiment can be used to clamp and fix the following piston.

The piston comprises a piston body, wherein a pair of through holes capable of allowing a piston pin to penetrate are symmetrically formed in the piston body, the through holes extend oppositely to form bulges, the bulges enable the piston body to be connected with the piston pin and not to be easily broken, meanwhile, the piston body is not easily deformed when being subjected to combustion pressure, and the strength of the piston body is improved. Be equipped with scrobicular ring, annular, cooler on the piston body, be equipped with the pressure release hole on through-hole and the scrobicular ring, the scrobicular ring is used for installing the piston ring usefulness, and the pressure release hole is used for releasing piston internal pressure and makes the piston difficult easy by the burst deformation, is equipped with fixed orifices, connecting hole, fixture block, lubricating part in each annular respectively, the cooler includes main part box, cooling tube, the cooling tube passes the connecting hole and is connected with the main part box, and the cooling tube is arranged in the coolant of circulating transport main part box.

The annular includes annular A, annular B, annular C, be equipped with the fixed orifices in the annular A, be equipped with connecting hole, fixture block in the annular B, the fixture block sets up and is used for the card to establish the cooling tube in annular B's both ends, and fixture block one side sets up in annular upper portion, and the opposite side sets up in annular B lower part, and one side setting is between annular B upper portion and cooling tube up end promptly, and the opposite side sets up between annular B lower part and the cooling tube lower extreme face.

The fixture block is used for enabling the left cooling pipe and the right cooling pipe to be different in height, enabling the coolant to flow in the cooling pipes and flow into the side which is relatively low from the side where the cooling pipes are high, the lubricating piece is arranged in the ring groove, the fixing piece is arranged in the fixing hole, and the fixing piece is used for fixing the main body box.

The lubricating part comprises a shell, a sponge and a pressing part, holes are formed in the shell, the sponge is arranged between the two pressing parts, the pressing part comprises a pressing sheet and an elastic part which is uniformly arranged, and the sponge is adsorbed with a lubricating agent. The main body box is communicated with the cooling pipe, and a coolant is arranged in the cooler.

Of course this embodiment can be used with other pistons as well. Here, description is not repeated, and the clamp according to the embodiment of the present application is described below.

Referring to fig. 1-4, a positioning and calibrating fixture for piston machining includes a clamping structure, an adjusting structure and an installation frame 1, wherein a movable frame 3 is arranged at the top end of the installation frame 1;

the clamping structure comprises a mounting plate 4, a sliding groove 41 is formed in the front side face of the mounting plate 4, a clamping plate 5 is arranged on the front side of the mounting plate 4, a sliding block 51 is fixedly connected to the bottom end of the clamping plate 5, the sliding block 51 is connected with the sliding groove 41 in a sliding mode, and a threaded hole 52 is formed in the side face of the sliding block 51; a screw 6 is arranged in the chute 41, two ends of the screw 6 are rotatably connected with the mounting plate 4 through bearings 7, and the screw 6 is screwed with the threaded hole 52; an installation cavity 42 is formed in the installation plate 4, one end of the screw 6 is sleeved with the first gear 8, the installation cavity 42 is fixedly connected with the first motor 10, the output end of the first motor 10 is sleeved with the second gear 9, and the first gear 8 is in threaded connection with the second gear 9;

the adjusting structure comprises an air cylinder 12, the air cylinder 12 is fixedly connected with the rear side face of the top end of the movable frame 3, a side groove 32 is formed in the front side face of the top end of the movable frame 3, a movable plate 15 is arranged in the side groove 32, and the output end of the air cylinder 12 is fixedly connected with the side face of the movable plate 15; a movable cavity 33 is arranged on the inner side of the side groove 32, a limiting plate 16 is arranged in the movable cavity 33, the limiting plate 16 is sleeved on the surface of the output end of the cylinder 12, a spring 17 is arranged on one side of the limiting plate 16, and the spring 17 is sleeved on the surface of the output rod of the cylinder 12; the mounting panel 4 trailing flank with the equal rigid coupling of fly leaf 15 lateral surface has pinion rack 11, and is adjacent pinion rack 11 block is connected.

The bottom end of the mounting frame 1 is provided with a mounting hole 2, the movable frame 3 is positioned at the top end of the mounting plate 4, the side surface of the top end of the mounting plate 4 is fixedly connected with a guide block 18, the side surface of the movable frame 3 is provided with a guide groove 31, the guide block 18 is in sliding connection with the guide groove 31, and the guide block 18 and the guide groove 31 can play a role in guiding the movable frame 3; a hydraulic rod 19 is embedded in the top end of the mounting frame 1, the output end of the hydraulic rod 19 is fixedly connected with the bottom end of the movable frame 3, and the movable frame 3 can be driven to slide through the hydraulic rod 19; the clamping plates 5 are of arc-shaped structures, the four clamping plates 5 are annularly distributed on the front side surface of the mounting plate 4, the inner side surfaces of the clamping plates 5 are provided with protective pads, and the pistons can be clamped and fixed through the clamping plates 5; the mounting plate 4 is fixedly connected with a connecting shaft 13 at the rear side face, the outer end of the connecting shaft 13 is rotatably connected with the top end of the movable frame 3 through a bearing 7, a second motor 14 is fixedly connected with the rear side face at the top end of the movable frame 3, the output end of the second motor 14 is fixedly connected with the outer end of the connecting shaft 13, and the mounting plate 4 can be driven to rotate through the second motor 14; the number of the cylinders 12 is two, the two cylinders 12 are symmetrically distributed on two sides of the second motor 14, and the movable plate 15 can be driven to move by the cylinders 12; the movable plate 15 is of an annular structure, a plurality of toothed plates 11 are annularly distributed on the outer side surface of the movable plate 15 and the rear side surface of the mounting plate 4, and the mounting plate 4 can be fixed in an auxiliary manner through the toothed plates 11; the mounting frame 1 is of a convex structure, the movable frame 3 is of a concave structure, and the movable frame 3 is in sliding connection with the mounting frame 1, so that the stability between the movable frame 3 and the mounting frame 1 is enhanced; the number of the first gears 8 is four, the four first gears 8 are annularly distributed on the surface of the second gear 9, and the four first gears 8 are all meshed with the second gear 9, so that the screw 6 can be driven to synchronously rotate through the first gears 8 and the second gear 9; installation cavity 42 is circular structure, 41 figure of spout is four, and four spout 41 all with the installation cavity 42 is inside to be communicated, is convenient for its inner structure's installation.

When the piston mounting device is used, firstly, the mounting frame 1 can be fixed through the mounting hole 2, then, the piston is placed between the four clamping plates 5, meanwhile, the first motor 10 works, the first motor 10 can drive the second gear 9 to rotate, the screw 6 can be driven to synchronously rotate under the meshing of the second gear 9 and the four first gears 8, then, the clamping plates 5 can be driven to slide along the sliding grooves 41 under the action of the screw 6 and the threaded holes 52 until the piston is fixedly clamped between the four clamping plates 5, and the piston is convenient to mount and dismount;

then, the second motor 14 works to drive the mounting plate 4 to rotate through the connecting shaft 13, so that the machining angle of the piston is adjusted, after the angle adjustment is completed, the air cylinder 12 works, the air cylinder 12 drives the movable plate 15 to move until the toothed plate 11 on the outer side surface of the movable plate 15 and the toothed plate 11 on the rear side surface of the mounting plate 4 are mutually clamped and connected, and therefore the stability between the mounting plate 4 and the movable frame 3 is enhanced; then, the hydraulic rod 19 works to drive the movable frame 3 to slide along the guide groove 31, so that the overall height of the mounting plate 4 is adjusted, and the piston is convenient to process.

The application has the advantages that:

1. according to the piston clamping device, the piston can be directly placed between the four clamping plates, the second gear can be driven to rotate through the first motor, the screw rod can be driven to synchronously rotate under the meshing of the second gear and the four first gears, and then the clamping plates can be driven to slide along the sliding grooves under the action of the screw rod and the threaded holes until the piston is fixedly clamped between the four clamping plates, so that the piston can be conveniently installed and detached;

2. this application drives the mounting panel through second motor work accessible connecting axle and rotates to this adjusts piston processing angle, accomplishes the back at angle modulation, makes the cylinder work again, and the cylinder can promote the fly leaf and move to the outside, until with the pinion rack of fly leaf lateral surface and the pinion rack mutual block of mounting panel trailing flank, with this stability between reinforcing mounting panel and the adjustable shelf.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a piston processing is with location calibration anchor clamps which characterized in that: the clamping device comprises a clamping structure, an adjusting structure and a mounting rack (1), wherein a movable rack (3) is arranged at the top end of the mounting rack (1);

the clamping structure comprises a mounting plate (4), a sliding groove (41) is formed in the front side face of the mounting plate (4), a clamping plate (5) is arranged on the front side of the mounting plate (4), a sliding block (51) is fixedly connected to the bottom end of the clamping plate (5), the sliding block (51) is in sliding connection with the sliding groove (41), and a threaded hole (52) is formed in the side face of the sliding block (51); a screw rod (6) is arranged in the sliding groove (41), two ends of the screw rod (6) are rotatably connected with the mounting plate (4) through bearings (7), and the screw rod (6) is screwed with the threaded hole (52); an installation cavity (42) is formed in the installation plate (4), one end of the screw rod (6) is sleeved with a first gear (8), a first motor (10) is fixedly connected in the installation cavity (42), the output end of the first motor (10) is sleeved with a second gear (9), and the first gear (8) is in threaded connection with the second gear (9);

the adjusting structure comprises an air cylinder (12), the air cylinder (12) is fixedly connected with the rear side face of the top end of the movable frame (3), a side groove (32) is formed in the front side face of the top end of the movable frame (3), a movable plate (15) is arranged in the side groove (32), and the output end of the air cylinder (12) is fixedly connected with the side face of the movable plate (15); a movable cavity (33) is arranged on the inner side of the side groove (32), a limiting plate (16) is arranged in the movable cavity (33), the limiting plate (16) is sleeved on the surface of the output end of the cylinder (12), a spring (17) is arranged on one side of the limiting plate (16), and the spring (17) is sleeved on the surface of the output rod of the cylinder (12); mounting panel (4) trailing flank with the equal rigid coupling of fly leaf (15) lateral surface has pinion rack (11), and is adjacent pinion rack (11) block is connected.

2. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

mounting bracket (1) bottom is opened there are mounting hole (2), adjustable shelf (3) are located mounting panel (4) top, mounting panel (4) top side rigid coupling has guide block (18), adjustable shelf (3) side is opened there are guide way (31), just guide block (18) with guide way (31) sliding connection.

3. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

hydraulic stem (19) are inlayed on mounting bracket (1) top, just hydraulic stem (19) output with adjustable shelf (3) bottom rigid coupling.

4. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

splint (5) are the arc structure, four splint (5) are the annular distribution in mounting panel (4) leading flank, just splint (5) medial surface is equipped with the protection and fills up.

5. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

mounting panel (4) trailing flank rigid coupling has connecting axle (13), connecting axle (13) outer end pass through bearing (7) with adjustable shelf (3) top is rotated and is connected, adjustable shelf (3) top trailing flank rigid coupling has second motor (14), just second motor (14) output with connecting axle (13) outer end rigid coupling.

6. The positioning and calibrating jig for piston machining according to claim 5, characterized in that:

the number of the air cylinders (12) is two, and the two air cylinders (12) are symmetrically distributed on two sides of the second motor (14).

7. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

the movable plate (15) is of an annular structure, and a plurality of toothed plates (11) are annularly distributed on the outer side surface of the movable plate (15) and the rear side surface of the mounting plate (4).

8. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

the mounting bracket (1) is of a convex structure, the movable frame (3) is of a concave structure, and the movable frame (3) is in sliding connection with the mounting bracket (1).

9. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

the number of the first gears (8) is four, the four first gears (8) are annularly distributed on the surface of the second gear (9), and the four first gears (8) are meshed and connected with the second gear (9).

10. The positioning and calibrating jig for piston machining according to claim 1, characterized in that:

the installation cavity (42) is of a circular structure, the number of the sliding grooves (41) is four, and the sliding grooves (41) are communicated with the interior of the installation cavity (42).