阅读说明：本技术 一种用于内燃机活塞加工用辅助工装 (Auxiliary tool for processing internal combustion engine piston ) 是由 陈兆真 于 2020-06-04 设计创作，主要内容包括：本发明提供一种用于内燃机活塞加工用辅助工装,包括:机床主体,所述机床主体上端面前侧转动连接有旋转机构。本发明通过杠杆机构与固定机构的配合,当其中一个活塞加工完后,将杠杆机构持握端进行向下按压,使固定机构带动限位柱向上滑动离开第二限位孔和第一限位孔,然后再顺时针转动旋转机构,将加工好的一个活塞转动带出,当旋转机构顺时针转动九十度时,固定机构在弹簧作用下带动限位柱再次插入到第二限位孔和第一限位孔内,且此时左侧的一个待加工活塞也被顺时针转动带动到铣孔设备正前方,然后再通过铣孔设备进行加工即可,然后提前将加工好的一个活塞从三爪卡盘上拆掉,再夹持上新的待加工活塞,进而有效提高了活塞加工时的加工效率。(The invention provides an auxiliary tool for processing a piston of an internal combustion engine, which comprises a machine tool main body, wherein a rotating mechanism is rotatably connected to the front side of the upper end surface of the machine tool main body. According to the invention, through the matching of the lever mechanism and the fixing mechanism, after one piston is machined, the holding end of the lever mechanism is pressed downwards, the fixing mechanism drives the limiting column to slide upwards to leave the second limiting hole and the first limiting hole, then the rotating mechanism is rotated clockwise to take out the machined piston, when the rotating mechanism rotates ninety degrees clockwise, the fixing mechanism drives the limiting column to be inserted into the second limiting hole and the first limiting hole again under the action of the spring, and at the moment, one piston to be machined on the left side is also driven to be right in front of the hole milling equipment by clockwise rotation, then the piston is machined through the hole milling equipment, then one piston to be machined is detached from the three-jaw chuck in advance, and a new piston to be machined is clamped, so that the machining efficiency of the piston during machining is effectively improved.)

1. The utility model provides a be used for internal-combustion engine piston processing to use auxiliary fixtures which characterized in that: the three-jaw chuck is characterized by comprising a machine tool main body (1), wherein a rotating mechanism (2) is rotatably connected to the front side of the upper end surface of the machine tool main body (1), and four three-jaw chucks (3) are fixedly arranged on the edge part of the upper end surface of the rotating mechanism (2) in an annular array shape; the three-jaw chuck (3) further comprises jaw sliding sleeves (301), adjusting jaws (302), a shaft sleeve (303), adjusting bolts (304), strip-shaped sliding blocks (305), strip-shaped sliding grooves (306), annular clamping blocks (307), threaded blind holes (308) and annular clamping grooves (309), wherein the three jaw sliding sleeves (301) are installed on the three-jaw chuck (3), each jaw sliding sleeve (301) is internally and slidably connected with one adjusting jaw (302), the left side and the right side of each adjusting jaw (302) are respectively provided with one strip-shaped sliding block (305), the left side and the right side of the inner part of each jaw sliding sleeve (301) are respectively provided with one strip-shaped sliding groove (306), the strip-shaped sliding grooves (306) are slidably connected with the strip-shaped sliding blocks (305), the front end faces of the jaw sliding sleeves (301) are provided with the shaft sleeve (303), the inner parts of the shaft sleeves (303) are rotatably connected with the adjusting bolts (304), the threaded, the threaded blind hole (308) is connected with the adjusting bolt (304) through threads, an annular clamping groove (309) is formed in the shaft sleeve (303), an annular clamping block (307) is arranged at the front end of the outer portion of the adjusting bolt (304), and the annular clamping block (307) is rotatably connected with the annular clamping groove (309); each three-jaw chuck (3) is clamped with a piston (4); the middle part of the upper end face of the rotating mechanism (2) is provided with a fixing mechanism (5), and the middle part of the upper end face of the rotating mechanism (2) is provided with four lever mechanisms (6) in an annular array shape.

2. The auxiliary tool for machining the piston of the internal combustion engine as claimed in claim 1, wherein: machine tool body (1) still includes hole milling equipment (101), connection disc (102), T type draw-in groove (103) and first spacing hole (104), hole milling equipment (101) is installed to machine tool body (1) up end rear side, and installs milling cutter on hole milling equipment (101), machine tool body (1) up end front side fixedly connected with connection disc (102), and connection disc (102) up end center part has seted up T type draw-in groove (103), connection disc (102) up end edge part is the annular array form and has still seted up four first spacing holes (104), T type draw-in groove (103) degree of depth account for two-thirds of connection disc (102) thickness, and connection disc (102) diameter accounts for seven tenths of rotary mechanism (2) diameter.

3. The auxiliary tool for machining the piston of the internal combustion engine as claimed in claim 1, wherein: the rotary mechanism (2) further comprises an annular rotating handle (201), a T-shaped clamping block (202) and a second limiting hole (203), the annular rotating handle (201) is arranged outside the rotary mechanism (2), the edge of the upper end face of the rotary mechanism (2) is provided with the second limiting hole (203) matched with the first limiting hole (104) in an annular array shape, the T-shaped clamping block (202) is arranged at the center of the bottom end face of the rotary mechanism (2), and when the rotary mechanism (2) and the machine tool main body (1) are in an installation state, the T-shaped clamping block (202) is connected with the T-shaped clamping groove (103) in a rotating mode.

4. The auxiliary tool for machining the piston of the internal combustion engine as claimed in claim 1, wherein: the rear end face of each adjusting clamping jaw (302) is provided with a triangular bayonet, the depth of each threaded blind hole (308) accounts for four-seventeen of the length of each adjusting clamping jaw (302), and when the three-jaw chuck (3) and the piston (4) are in an installation state, the bayonet of each adjusting clamping jaw (302) is tightly contacted with the lower part of the outer peripheral face of the piston (4).

5. The auxiliary tool for machining the piston of the internal combustion engine as claimed in claim 1, wherein: fixed establishment (5) still include square traveller (501), spring (502), arch backup pad (503), square opening (504) and spacing post (505), fixed establishment (5) are disc structure, and fixed establishment (5) periphery personally submits the annular array form and is equipped with four arch backup pad (503), every the equal fixedly connected with of arch backup pad (503) bottom end face outside spacing post (505), fixed establishment (5) up end edge position is the annular array form and has seted up four square opening (504), and equal sliding connection has a square traveller (501) of fixing at rotary mechanism (2) up end in every square opening (504), every spring (502) are all installed to square traveller (501) outside, and every square traveller (501) upper end all is equipped with circular stopper, works as fixed establishment (5) the square traveller (501) upper end, When the rotating mechanism (2) and the machine tool main body (1) are in an installation state, each limiting column (505) sequentially penetrates through one second limiting hole (203) and one first limiting hole (104).

6. The auxiliary tool for machining the piston of the internal combustion engine as claimed in claim 1, wherein: lever mechanism (6) still include square piece (601), concave type and carry and draw piece (602), stay cord (603) and handle (604), lever mechanism (6) lower part is connected with two square pieces (601) of fixing at rotary mechanism (2) up end through the pivot rotation, and lever mechanism (6) one side bottom face fixedly connected with stay cord (603), block (602) fixed connection is carried to the concave type at fixed establishment (5) up end, and just block (602) is carried to the concave type is connected with stay cord (603) lower extreme, lever mechanism (6) other end is equipped with handle (604), and handle (604) outer peripheral face is equipped with anti-skidding stripe.

7. The auxiliary tool for machining the piston of the internal combustion engine as claimed in claim 1, wherein: when the holding end of the lever mechanism (6) is in a downward pressing state, four limiting columns (505) on the fixing mechanism (5) are respectively in a separation state with four second limiting holes (203) on the rotating mechanism (2) and four first limiting holes (104) on the connecting disc (102).

Technical Field

The invention belongs to the technical field of piston machining tools, and particularly relates to an auxiliary tool for machining a piston of an internal combustion engine.

Background

The piston is a reciprocating element in the cylinder body of the automobile engine. The basic structure of the piston can be divided into a crown, a crown and a skirt. The piston crown is the main part that makes up the combustion chamber and its shape is related to the combustion chamber form chosen. The gasoline engine mostly adopts a flat-top piston, and has the advantage of small heat absorption area. The top of the piston of a diesel engine often has various pits, the specific shape, position and size of which must be adapted to the requirements of the mixture formation and combustion of the diesel engine.

For example, application No.: the invention provides a steel piston skirt pin hole machining clamp, and particularly relates to the technical field of clamps. The positioning device comprises a base and a supporting plate, wherein the top end of the base is provided with the supporting plate, positioning holes are symmetrically arranged on the supporting plate from left to right, three mounting seats are uniformly arranged on the positive end surface of the supporting plate, a spigot positioning mold core is arranged on the positive end surface of each positioning hole, a rear connecting seat is arranged at the rear side end of each positioning hole, an inner cavity of each positioning hole is provided with an inner supporting device which is respectively matched with the spigot positioning mold core and the rear connecting seat, an intermediate clamping device is arranged on the mounting seat between the two positioning holes, and edge clamping devices are respectively arranged on; according to the piston body clamping device, the piston body can be effectively prevented from rotating by the two positioning mold cores which are internally supported and clamped, the spigot positioning mold core is used for propping against one end of the piston body, and the other end of the piston body is tightly propped by the middle clamp matched with the edge clamp, so that the stability of piston body clamping is ensured.

Based on the search of the above-mentioned patent to and the equipment discovery among the combination prior art, at present internal-combustion engine piston is in the course of working, will use auxiliary fixtures to fix it usually to work such as better completion milling hole. The existing auxiliary tool has the following defects in the actual use process, such as: 1. when a small factory processes a piston, because the cost is limited, automatic equipment with higher cost cannot be used, while the existing auxiliary tool is used, the piston is usually clamped on the auxiliary tool firstly and then processed by the processing equipment, and when the piston is processed, a worker is in a waiting idle state and cannot clamp another piston in advance, so that the processing efficiency of the piston during processing is reduced; 2. the piston is generally used three-jaw chuck type auxiliary tool to clamp and fix during machining, and after the three-jaw chuck type auxiliary tool is used for a long time, abrasion errors can occur between three jaws, and then the stability of the three-jaw chuck type auxiliary tool during piston clamping is reduced.

Disclosure of Invention

In order to solve the technical problems, the invention provides an auxiliary tool for processing a piston of an internal combustion engine, which aims to solve the following defects existing in the actual use process of the conventional auxiliary tool, such as: 1. when a small factory processes a piston, because the cost is limited, automatic equipment with higher cost cannot be used, while the existing auxiliary tool is used, the piston is usually clamped on the auxiliary tool firstly and then processed by the processing equipment, and when the piston is processed, a worker is in a waiting idle state and cannot clamp another piston in advance, so that the processing efficiency of the piston during processing is reduced; 2. the piston is generally used three-jaw chuck type auxiliary tool to clamp and fix during machining, and after the three-jaw chuck type auxiliary tool is used for a long time, abrasion errors can occur between three jaws, and then the stability of the three-jaw chuck type auxiliary tool during piston clamping is reduced.

The invention relates to an auxiliary tool for processing a piston of an internal combustion engine, which is realized by the following specific technical means:

an auxiliary tool for processing a piston of an internal combustion engine comprises a machine tool main body, wherein a rotating mechanism is rotatably connected to the front side of the upper end face of the machine tool main body, and four three-jaw chucks are fixedly mounted at the edge of the upper end face of the rotating mechanism in an annular array shape; the three-jaw chuck also comprises a jaw sliding sleeve, an adjusting jaw, a shaft sleeve, an adjusting bolt, a strip-shaped sliding block, a strip-shaped sliding groove, an annular clamping block, a threaded blind hole and an annular clamping groove, wherein the three jaw sliding sleeves are arranged on the three-jaw chuck, and an adjusting claw is connected inside each claw sliding sleeve in a sliding manner, a strip-shaped sliding block is arranged on the left side and the right side of each adjusting claw, a strip-shaped sliding groove is arranged on the left side and the right side of the inside of each claw sliding sleeve, the strip-shaped sliding groove is connected with the strip-shaped sliding block in a sliding manner, the front end face of the jaw sliding sleeve is provided with a shaft sleeve, the inside of the shaft sleeve is rotatably connected with an adjusting bolt, the center part of the front end face of the adjusting jaw is provided with a threaded blind hole, the threaded blind hole is connected with the adjusting bolt through threads, an annular clamping groove is arranged in the shaft sleeve, an annular clamping block is arranged at the front end of the outer part of the adjusting bolt and is rotationally connected with the annular clamping groove; each three-jaw chuck is clamped with a piston; the middle part of the upper end face of the rotating mechanism is provided with a fixing mechanism, and the middle part of the upper end face of the rotating mechanism is provided with four lever mechanisms in an annular array shape.

Furthermore, the machine tool main body further comprises hole milling equipment, a connecting disc, a T-shaped clamping groove and first limiting holes, the hole milling equipment is installed on the rear side of the upper end face of the machine tool main body, a milling cutter is installed on the hole milling equipment, the connecting disc is fixedly connected to the front side of the upper end face of the machine tool main body, the T-shaped clamping groove is formed in the center of the upper end face of the connecting disc, four first limiting holes are further formed in the edge of the upper end face of the connecting disc in an annular array shape, the depth of the T-shaped clamping groove is two thirds of the thickness of the connecting disc, and the diameter of the connecting disc is seven tenths of the diameter of;

furthermore, the rotating mechanism also comprises an annular rotating handle, a T-shaped clamping block and a second limiting hole, the annular rotating handle is arranged outside the rotating mechanism, the edge part of the upper end face of the rotating mechanism is provided with the second limiting hole matched with the first limiting hole in an annular array shape, the central part of the bottom end face of the rotating mechanism is provided with the T-shaped clamping block, and when the rotating mechanism and the machine tool main body are in an installation state, the T-shaped clamping block is rotatably connected with the T-shaped clamping groove;

furthermore, a triangular bayonet is formed in the rear end face of each adjusting jaw, the depth of each threaded blind hole accounts for four-sevenths of the length of each adjusting jaw, and when the three-jaw chuck and the piston are in an installation state, each adjusting jaw bayonet is tightly contacted with the lower part of the outer peripheral surface of the piston;

furthermore, the fixing mechanism further comprises square sliding columns, springs, arch supporting plates, square through holes and limiting columns, the fixing mechanism is of a disc-shaped structure, the periphery of the fixing mechanism is in an annular array shape, the four arch supporting plates are arranged, a limiting column is fixedly connected to the outer side of the bottom end face of each arch supporting plate, the edge of the upper end face of the fixing mechanism is in an annular array shape, the four square through holes are formed in the edge of the upper end face of the fixing mechanism, a square sliding column fixed to the upper end face of the rotating mechanism is connected in each square through hole in a sliding mode, the springs are arranged on the outer portion of each square sliding column, a circular limiting block is arranged at the upper end of each square sliding column, and when the fixing mechanism, the rotating mechanism and the machine tool main body are in an installation state, each limiting column sequentially;

the lower part of the lever mechanism is rotatably connected with two square supporting blocks fixed on the upper end surface of the rotating mechanism through a rotating shaft, the bottom end surface of one side of the lever mechanism is fixedly connected with a pull rope, the concave lifting block is fixedly connected on the upper end surface of the fixing mechanism, the concave lifting block is connected with the lower end of the pull rope, the other end of the lever mechanism is provided with the handle, and the peripheral surface of the handle is provided with anti-skid stripes;

furthermore, when the holding end of the lever mechanism is in a downward pressing state, four limiting columns on the fixing mechanism are respectively in a separation state with four second limiting holes on the rotating mechanism and four first limiting holes on the connecting disc.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, through the matching of the lever mechanism and the fixing mechanism, after one piston is machined, the holding end of one lever mechanism is pressed downwards, the fixing mechanism drives the limiting column to slide upwards to leave the second limiting hole and the first limiting hole, then the rotating mechanism is rotated clockwise, a machined piston is taken out in a clockwise rotating mode, when the rotating mechanism rotates ninety degrees clockwise, the fixing mechanism drives the limiting column to be inserted into the second limiting hole and the first limiting hole again under the action of the spring, and at the moment, a piston to be machined on the left side is also driven to be right in front of the hole milling equipment in a clockwise rotating mode, then machining is carried out through the hole milling equipment, then a machined piston is detached from the three-jaw chuck in advance, a new piston to be machined is clamped, and further, the machining efficiency during piston machining is effectively improved.

According to the invention, through the matching of the adjusting bolt and the adjusting jaw, when one adjusting jaw bayonet on the three-jaw chuck is worn, the adjusting bolt connected with the worn adjusting jaw is rotated anticlockwise through the tool, so that the worn adjusting jaw slides from the jaw sliding sleeve to the bayonet end under the action of the thread, the length of the worn adjusting jaw is increased, and the stability of the three-jaw chuck type auxiliary tool in clamping the piston is further improved.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic top view of the present invention.

FIG. 3 is a partial cross-sectional structural schematic view of the connecting disk of the present invention.

Fig. 4 is a schematic structural view of the rotating mechanism of the present invention.

Fig. 5 is a schematic structural view of the jaw sliding sleeve of the invention.

Fig. 6 is a partial sectional structural schematic view of the jaw sliding sleeve and the adjusting jaw of the invention.

Fig. 7 is a schematic structural view of the rotating mechanism and the fixing mechanism of the present invention in a disassembled state.

Fig. 8 is a schematic structural view of a rotating mechanism, a fixing mechanism and a lever mechanism of the invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a machine tool main body; 101. hole milling equipment; 102. connecting the disks; 103. a T-shaped clamping groove; 104. a first limit hole; 2. a rotation mechanism; 201. a ring-shaped rotating handle; 202. a T-shaped fixture block; 203. a second limiting hole; 3. a three-jaw chuck; 301. a jaw sliding sleeve; 302. adjusting the clamping jaw; 303. a shaft sleeve; 304. adjusting the bolt; 305. a bar-shaped slider; 306. a strip-shaped chute; 307. an annular fixture block; 308. a threaded blind hole; 309. an annular neck; 4. a piston; 5. a fixing mechanism; 501. a square sliding column; 502. a spring; 503. an arched support plate; 504. a square through opening; 505. a limiting column; 6. a lever mechanism; 601. a square supporting block; 602. a concave lifting block; 603. pulling a rope; 604. a handle.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.