阅读说明：本技术 一种电气化红外精控曲轴抛光操作平台 (Electrified infrared fine control crankshaft polishing operation platform ) 是由 张军粱 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种电气化红外精控曲轴抛光操作平台,包括操作平台和电气柜,所述操作平台底部连接有平台支撑板,所述操作平台侧壁上连接有抛光轮支架,所述抛光轮支架上连接有可上下移动的防尘盖和抛光轮,所述抛光轮贯穿所述防尘盖,所述操作平台上设有滑槽,所述滑槽上设有可移动的曲轴夹紧模块,所述防尘盖内部上表面连接有红外线发射器,所述曲轴夹紧模块上连接有若干红外线接收器,所述抛光轮、曲轴夹紧模块以及红外线接收器分别通过数据线与所述电气柜相连。本发明采用红外电气化控制,可以更精确的控制曲轴夹紧模块的移动,确保抛光轮上的主轴颈通槽能精确的卡在主轴颈/连杆轴颈上。(The invention discloses an electrified infrared precise control crankshaft polishing operating platform which comprises an operating platform and an electric cabinet, wherein a platform supporting plate is connected to the bottom of the operating platform, a polishing wheel support is connected to the side wall of the operating platform, a dustproof cover and a polishing wheel which can move up and down are connected to the polishing wheel support, the polishing wheel penetrates through the dustproof cover, a sliding groove is formed in the operating platform, a movable crankshaft clamping module is arranged on the sliding groove, an infrared transmitter is connected to the upper surface inside the dustproof cover, a plurality of infrared receivers are connected to the crankshaft clamping module, and the polishing wheel, the crankshaft clamping module and the infrared receivers are respectively connected with the electric cabinet through data lines. The invention adopts infrared electrification control, can more accurately control the movement of the crankshaft clamping module, and ensures that the main journal through groove on the polishing wheel can be accurately clamped on the main journal/connecting rod journal.)

1. The utility model provides an infrared accurate accuse bent axle polishing operation platform of electrification which characterized in that: comprises an operating platform (1) and an electric cabinet (2), wherein the bottom of the operating platform (1) is connected with a platform supporting plate (3), the side wall of the operating platform (1) is connected with a polishing wheel bracket (4), the polishing wheel bracket (4) is connected with a dust cover (5) and a polishing wheel (8) which can move up and down, the polishing wheel (8) penetrates through the dust cover (5), a sliding groove (11) is arranged on the operating platform (1), a movable crankshaft clamping module (12) is arranged on the sliding chute (11), the upper surface inside the dustproof cover (5) is connected with an infrared emitter (15), the crankshaft clamping module (12) is connected with a plurality of infrared receivers (24), the polishing wheel (8), the crankshaft clamping module (12) and the infrared receiver (24) are respectively connected with the electrical cabinet (2) through data lines (13).

2. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 1, wherein: the width of shield (5) is more than or equal to the width of operation platform (1), operation platform (1) upper surface is equipped with two shield spacing grooves (28), be equipped with relative arc type on two relative left and right two lateral walls of shield (5) and lead to groove (16), be equipped with observation window (30) on shield (5) upper surface, be equipped with on observation window (30) and throw aureola and lead to groove (14).

3. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 1, wherein: the polishing wheel support (4) is of a hollow structure, a first hydraulic cylinder (32) is connected in the polishing wheel support (4), two limiting pin through grooves (33) and a connecting rod through groove (31) are formed in the side wall, connected with the operating platform (1), of the polishing wheel support (4), the two limiting pin through grooves (33) are respectively located on the left side and the right side of the connecting rod through groove (31), a connecting rod (6) penetrates through the connecting rod through groove (31), one end, located in the polishing wheel support (4), of the connecting rod (6) is connected with the first hydraulic cylinder (32), one end, located outside the polishing wheel support (4), of the connecting rod (6) is connected with a cross beam (7), the polishing wheel (8) is fixed on the cross beam (7), and a dust cover limiting pin (17) is connected to the side wall, adjacent to the polishing wheel support (4), of the dust cover (5), the dustproof cover limiting pin (17) is embedded in the limiting pin through groove (33), and the first hydraulic cylinder (32) is connected with the electric cabinet (2) through a data line (13).

4. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 3, wherein: a main journal through groove (9) is formed in the bottom of the polishing wheel (8), a connecting rod groove (34) is formed in the inner end face of the polishing wheel (8), the connecting rod groove (34) is located right above the main journal through groove (9) and communicated with the main journal through groove (9), an L-shaped connecting rod (35) is embedded in the connecting rod groove (34), a pressure sensor (36) is connected to the bottom of the L-shaped connecting rod (35), a cylinder groove (37) is formed in the cross beam (7), a second hydraulic cylinder (38) is connected in the cylinder groove (37), a connecting rod through groove (39) is formed in the side wall of the cross beam (7) adjacent to the polishing wheel (8), the connecting rod through groove (39) is communicated with the cylinder groove (37), the horizontal section of the L-shaped connecting rod (35) penetrates through the connecting rod through groove (39) and is connected with the second hydraulic cylinder (38), the pressure sensor (36) and the second hydraulic cylinder (38) are respectively connected with the electrical cabinet (2) through data lines (13).

5. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 4, wherein: the polishing wheel protective cover is characterized in that a polishing wheel protective cover (10) is connected to the cross beam (7), the polishing wheel (8) is sleeved in the polishing wheel protective cover (10), the connecting rod groove (34) is located outside the polishing wheel protective cover (10), and the length of the connecting rod groove (34) is larger than that of the vertical section of the L-shaped connecting rod (35).

6. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 1, wherein: the crankshaft clamping module (12) comprises a left upper clamping plate (18-1) and a right upper clamping plate (18-2), the bottoms of the left upper clamping plate (18-1) and the right upper clamping plate (18-2) are both connected with a clamping plate connecting rod (21), the bottom of the clamping plate connecting rod (21) is connected with a lower clamping plate (20), a horizontal plate (23) is connected between the left upper clamping plate (18-1) and the right upper clamping plate (18-2), a plurality of infrared receivers (24) are uniformly distributed on the upper surface of the horizontal plate (23), a crankshaft front end shaft clamping plate (19-1) is fixedly connected onto the left upper clamping plate (18-1), a crankshaft rear end shaft clamping plate (19-2) capable of moving back and forth is connected onto the right upper clamping plate (18-2), and a servo motor (25) is connected onto the crankshaft front end shaft clamping plate (19-1), the left upper clamping plate (18-1) and the right upper clamping plate (18-2) are all abutted to the upper surface of the operating platform (1), the clamping plate connecting rod (21) penetrates through the sliding groove (11), the lower clamping plate (20) is abutted to the lower surface of the operating platform (1), the bottom of the operating platform (1) is connected with a third hydraulic cylinder (29), the third hydraulic cylinder (29) is connected with the lower clamping plate (20) located at the bottom of the right upper clamping plate (18-2), and the servo motor (25) and the third hydraulic cylinder (29) are connected with the electric cabinet (2) through data lines (13).

7. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 6, wherein: the crankshaft front end shaft clamping plate (19-1) and the crankshaft rear end shaft clamping plate (19-2) are provided with crankshaft limiting grooves (40) on opposite end faces, the upper surface and the lower surface of the operating platform (1) are provided with two pulley grooves (27), the two pulley grooves (27) are respectively located on the left side and the right side of the sliding groove (11), the left upper clamping plate (18-1) and the lower surface of the right upper clamping plate (18-2) and the upper surface of the lower clamping plate (20) are respectively connected with two pulleys (22), and the pulleys (22) are embedded in the pulley grooves (27).

8. The electrified infrared fine control crankshaft polishing operating platform as claimed in claim 6, wherein: the bottom of the crankshaft rear end shaft clamping plate (19-2) is connected with a fixing plate (26), and the fixing plate (26) is fixed on the right upper clamping plate (18-2) through a threaded pin.

Technical Field

The invention relates to a crankshaft polishing operation platform, in particular to an electrified infrared precise control crankshaft polishing operation platform, and belongs to the field of crankshaft production equipment application.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well.

The crankshaft mainly comprises a main journal, a connecting rod journal, a crankshaft balance weight, a crank and the like, wherein a lubricating oil hole is further formed in the main journal, the crankshaft journal is usually hollow, in order to reduce the mass of the crankshaft and the centrifugal force generated during movement, the joints of the main journal, the crank pin and a crank arm are connected through transition arcs, the crankshaft balance weight is used for balancing the rotating centrifugal force and the moment thereof, the reciprocating inertia force and the moment thereof can be balanced at times, and when the forces and the moment are balanced, the balance weight can be used for lightening the load of a main bearing. The number, size and placement of the counterweights are considered based on the number of cylinders in the engine, the arrangement of the cylinders, and the shape of the crankshaft. The counterweight is generally cast or forged as one piece with the crankshaft, and the counterweight for high power diesel engines is manufactured separately from the crankshaft and then bolted together.

The special structure of the crankshaft leads to long polishing time when the crankshaft is polished by using a common connecting shaft polishing mode, the polishing effect of the crankshaft balance weight and the contact end of the crank and the main journal/connecting rod journal is not ideal, and if manual polishing is adopted, the efficiency is low and the labor cost is high.

Disclosure of Invention

The invention aims to solve the problems and provide an electrified infrared precise control crankshaft polishing operation platform.

The invention realizes the purpose through the following technical scheme, and the electrified infrared precise control crankshaft polishing operation platform comprises an operation platform and an electric cabinet, wherein the bottom of the operation platform is connected with a platform supporting plate, the side wall of the operation platform is connected with a polishing wheel support, the polishing wheel support is connected with a dustproof cover and a polishing wheel which can move up and down, the polishing wheel penetrates through the dustproof cover, the operation platform is provided with a chute, a movable crankshaft clamping module is arranged on the chute, the upper surface inside the dustproof cover is connected with an infrared emitter, the crankshaft clamping module is connected with a plurality of infrared receivers, and the polishing wheel, the crankshaft clamping module and the infrared receivers are respectively connected with the electric cabinet through data lines.

Preferably, the width of shield is greater than or equal to operation platform's width, the operation platform upper surface is equipped with two shield spacing grooves, be equipped with relative arc type logical groove on two relative left and right lateral walls of shield, be equipped with observation window on the shield upper surface, be equipped with the throwing aureola logical groove on the observation window.

Preferably, the polishing wheel support is of a hollow structure, a hydraulic cylinder is connected in the polishing wheel support, the polishing wheel support is provided with two limit pin through grooves and a connecting rod through groove on the side wall connected with the operating platform, the two limit pin through grooves are respectively located on the left side and the right side of the connecting rod through groove, a connecting rod penetrates through the connecting rod through groove, the connecting rod is located at one end in the polishing wheel support and connected with the hydraulic cylinder, the connecting rod is located at one end outside the polishing wheel support and connected with a cross beam, the polishing wheel is fixed on the cross beam, a dust cover limiting pin is connected on the side wall adjacent to the polishing wheel support, the dust cover limiting pin is embedded in the limit pin through groove, and the hydraulic cylinder is connected with the electrical cabinet through a data line.

Preferably, a main journal through groove is formed in the bottom of the polishing wheel, a connecting rod groove is formed in the inner end face of the polishing wheel, the connecting rod groove is located right above the main journal through groove and is communicated with the main journal through groove, an L-shaped connecting rod is embedded in the connecting rod groove, the bottom of the L-shaped connecting rod is connected with a pressure sensor, a cylinder groove is formed in the cross beam, a second hydraulic cylinder is connected in the cylinder groove, a connecting rod through groove is formed in the side wall, adjacent to the polishing wheel, of the cross beam, the connecting rod through groove is communicated with the cylinder groove, the horizontal section of the L-shaped connecting rod penetrates through the connecting rod through groove and is connected with the second hydraulic cylinder, and the pressure sensor and the second hydraulic cylinder are connected with the electrical cabinet through data lines respectively.

Preferably, the beam is connected with a polishing wheel protective cover, the polishing wheel is sleeved in the polishing wheel protective cover, the connecting rod groove is located outside the polishing wheel protective cover, and the length of the connecting rod groove is greater than that of the vertical section of the L-shaped connecting rod.

Preferably, the crankshaft clamping module comprises a left upper clamping plate and a right upper clamping plate, the bottoms of the left upper clamping plate and the right upper clamping plate are both connected with a clamping plate connecting rod, the bottom of the clamping plate connecting rod is connected with a lower clamping plate, a horizontal plate is connected between the left upper clamping plate and the right upper clamping plate, the infrared receivers are uniformly distributed on the upper surface of the horizontal plate, the left upper clamping plate is fixedly connected with a crankshaft front end shaft clamping plate, the right upper clamping plate is connected with a crankshaft rear end shaft clamping plate capable of moving back and forth, the crankshaft front end shaft clamping plate is connected with a servo motor, the left upper clamping plate and the right upper clamping plate are both propped against the upper surface of the operating platform, the clamping plate connecting rod penetrates through the chute, the lower clamping plate is propped against the lower surface of the operating platform, the bottom of the operating platform is connected with a third hydraulic cylinder, and the third hydraulic cylinder is connected with the lower clamping plate positioned at the bottom of the right upper clamping plate, the servo motor and the third hydraulic cylinder are connected with the electrical cabinet through data lines.

Preferably, the crankshaft front end shaft clamping plate and the crankshaft rear end shaft clamping plate are provided with crankshaft limiting grooves on opposite end faces, the upper surface and the lower surface of the operating platform are provided with two pulley grooves, the two pulley grooves are respectively located on the left side and the right side of the sliding groove, the lower surface of the left upper clamping plate and the lower surface of the right upper clamping plate are respectively connected with two pulleys, and the pulleys are embedded in the pulley grooves.

Preferably, the bottom of the shaft clamping plate at the rear end of the crankshaft is connected with a fixing plate, and the fixing plate is fixed on the right upper clamping plate through a threaded pin.

The invention has the beneficial effects that: the invention discloses an electrified infrared precise control crankshaft polishing operating platform which has the following advantages,

1. the polishing wheel is provided with a pressure sensor and a main journal through groove, so that the polishing wheel is conveniently nested on the main journal/connecting rod journal with different heights on the crankshaft, and polishes the main journal, the connecting rod journal, the crankshaft counterweight and the crank connected with the main journal and the connecting rod journal, and can adapt to the special structure of the crankshaft;

2. by adopting infrared electrification control, the movement of the crankshaft clamping module can be more accurately controlled, and the main journal through groove on the polishing wheel can be accurately clamped on the main journal/connecting rod journal;

3. the dust cover is additionally arranged, dust generated during polishing is shielded in the dust cover by the dust cover, the dust is prevented from entering air, and the concentration of dust particles in the environment is greatly reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the internal structure of the dust cap of the present invention.

FIG. 3 is a schematic view of the upper surface structure of the operation platform of the present invention.

FIG. 4 is a schematic view of a lower surface structure of the operation platform of the present invention.

FIG. 5 is a schematic view of a crankshaft clamping module according to the present invention.

FIG. 6 is a schematic view of a polishing wheel support according to the present invention.

FIG. 7 is a schematic view of a connection structure of the polishing wheel and the beam according to the present invention.

FIG. 8 is a schematic view of the connection structure of the L-shaped connecting rod and the polishing wheel according to the present invention.

Fig. 9 is a schematic view of a beam structure according to the present invention.

In the figure: 1. an operation platform, 2, an electrical cabinet, 3, a platform support plate, 4, a polishing wheel bracket, 5, a dustproof cover, 6, a connecting rod, 7, a cross beam, 8, a polishing wheel, 9, a main journal through groove, 10, a polishing wheel protective cover, 11, a sliding groove, 12, a crankshaft clamping module, 13, a data line, 14, a polishing wheel through groove, 15, an infrared emitter, 16, an arc-shaped through groove, 17, a dustproof cover limiting pin, 18-1, an upper left clamping plate, 18-2, an upper right clamping plate, 19-1, a crankshaft front end shaft clamping plate, 19-2, a crankshaft rear end shaft clamping plate, 20, a lower clamping plate, 21, a clamping plate connecting rod, 22, a pulley, 23, a horizontal plate, 24, an infrared receiver, 25, a servo motor, 26, a fixing plate, 27, a pulley groove, 28, a dustproof cover limiting groove, 29, a third hydraulic cylinder, 30, an observation window, 31, an observation window, 32, a third hydraulic cylinder, a, The hydraulic cylinder I33, the limiting pin through groove 34, the connecting rod groove 35, the L-shaped connecting rod 36, the pressure sensor 37, the cylinder groove 38, the hydraulic cylinder II 39, the connecting rod through groove 40 and the crankshaft limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, 2 and 5, an electrified infrared precise control crankshaft polishing operation platform comprises an operation platform 1 and an electrical cabinet 2, wherein the bottom of the operation platform 1 is connected with a platform support plate 3, a polishing wheel support 4 is connected to the side wall of the operation platform 1, a dustproof cover 5 and a polishing wheel 8 which can move up and down are connected to the polishing wheel support 4, the polishing wheel 8 penetrates through the dustproof cover 5, a chute 11 is arranged on the operation platform 1, a movable crankshaft clamping module 12 is arranged on the chute 11, an infrared emitter 15 is connected to the upper surface inside the dustproof cover 5, a plurality of infrared receivers 24 are connected to the crankshaft clamping module 12, and the polishing wheel 8, the crankshaft clamping module 12 and the infrared receivers 24 are respectively connected to the electrical cabinet 2 through data lines 13.

The crankshaft is clamped on the crankshaft clamping module 12, the infrared receivers 24 on the crankshaft clamping module 12 are opposite to the crankshaft counterweight/crank side wall on the crankshaft, taking the infrared receiver 24 marked on fig. 5 as an example, the infrared receiver 24 is opposite to the crank side wall, the distance between the infrared emitter 15 and the polishing wheel 8 is the same as the thickness of the crank, during the moving process of the crankshaft clamping module 12, the infrared emitted by the infrared emitter 15 is received by the infrared receiver 24, the infrared receiver 24 transmits the signal to the electrical cabinet 2, the electrical cabinet 2 controls the downward movement of the polishing wheel 8 after signal processing, the polishing wheel 8 is clamped on the main journal located at the front end of the crank, and the polishing main journal polishes the main journal and the cranks on two sides of the main journal while rotating the crankshaft.

The polishing method of the connecting rod journal and the crankshaft balance weight is the same as above.

As shown in fig. 1 and 2, the width of the dust cap 5 is greater than or equal to the width of the operating platform 1, the upper surface of the operating platform 1 is provided with two dust cap limiting grooves 28, two opposite left and right side walls of the dust cap 5 are provided with opposite arc-shaped through grooves 16, the upper surface of the dust cap 5 is provided with an observation window 30, and the observation window 30 is provided with a polishing wheel through groove 14.

Before polishing begins, the crankshaft clamping module 12 is located in the dust cover 5, the crankshaft clamping module 12 moves outwards of the dust cover 5 in a staged mode along with polishing operation, and the arc-shaped through grooves 16 facilitate penetrating movement of the crankshaft clamping module 12.

The dust cover 5 is embedded in the dust cover limiting groove 28, and the stability of the dust cover 5 is improved.

The observation window 30 is a filter lens, which can filter out infrared rays and facilitate the real-time monitoring and polishing operation of the operator, thereby protecting the eyes of the operator.

As shown in fig. 2, 6 and 7, the polishing wheel bracket 4 is a hollow structure, a first hydraulic cylinder 32 is connected in the polishing wheel bracket 4, two limiting pin through grooves 33 and a connecting rod through groove 31 are arranged on the side wall of the polishing wheel bracket 4 connected with the operating platform 1, the two limiting pin through grooves 33 are respectively located on the left side and the right side of the connecting rod through groove 31, a connecting rod 6 penetrates through the connecting rod through groove 31, one end of the connecting rod 6 located in the polishing wheel bracket 4 is connected with the first hydraulic cylinder 32, one end of the connecting rod 6 located outside the polishing wheel bracket 4 is connected with a cross beam 7, the polishing wheel 8 is fixed on the cross beam 7, the side wall of the dust cover 5 adjacent to the polishing wheel bracket 4 is connected with a dust cover limiting pin 17, the dust cover limiting pin 17 is embedded in the limiting pin through groove 33, the first hydraulic cylinder 32 is connected with the electrical cabinet 2 through a data line 13.

The up and down movement of the polishing wheel 8 can be controlled by using a hydraulic cylinder 32.

When the crankshaft clamping module 12 needs to be debugged, the dustproof cover 5 can be lifted upwards, after the crankshaft clamping module 12 is debugged, the acting force on the dustproof cover 5 is loosened, and the dustproof cover 5 falls back under the action of self gravity.

As shown in fig. 8 and 9, a main journal through groove 9 is formed at the bottom of the polishing wheel 8, a connecting rod groove 34 is formed on the inner end surface of the polishing wheel 8, the connecting rod groove 34 is located right above the main journal through groove 9 and communicates with the main journal through groove 9, an L-shaped connecting rod 35 is embedded in the connecting rod groove 34, the bottom of the L-shaped connecting rod 35 is connected with a pressure sensor 36, a cylinder groove 37 is arranged in the cross beam 7, a second hydraulic cylinder 38 is connected in the cylinder groove 37, the side wall of the beam 7 adjacent to the polishing wheel 8 is provided with a connecting rod through groove 39, the connecting rod through groove 39 is communicated with the cylinder groove 37, the horizontal section of the L-shaped connecting rod 35 penetrates through the connecting rod through groove 39 and is connected with the second hydraulic cylinder 38, the pressure sensor 36 and the second hydraulic cylinder 38 are respectively connected to the electrical cabinet 2 through data lines 13.

After the infrared ray emitted by the infrared emitter 15 is received by the infrared receiver 24, the signal is transmitted to the electrical cabinet 2 by the infrared receiver 24, the electrical cabinet 2 controls the first hydraulic cylinder 32 to retract after signal processing, the connecting rod 6 moves downwards and drives the polishing wheel 8 to move downwards, when the polishing wheel 8 moves downwards and is clamped on the main journal/the connecting rod journal, the main journal/the connecting rod journal extrudes the pressure sensor 36, the pressure sensor 36 transmits the generated pressure signal to the electrical cabinet 2, the electrical cabinet 2 controls the second hydraulic cylinder 38 to move upwards to the highest point after information analysis, at this time, the L-shaped connecting rod 35 is located at the uppermost end of the connecting rod groove 34, and the pressure sensor 36 retracts into the connecting rod groove 34, so that abrasion caused by mutual friction between the pressure sensor 36 and a crankshaft during rotation and polishing of the crankshaft is prevented.

As shown in fig. 7 and 8, a polishing wheel shield 10 is connected to the beam 7, the polishing wheel 8 is sleeved in the polishing wheel shield 10, the connecting rod groove 34 is located outside the polishing wheel shield 10, and the length of the connecting rod groove 34 is greater than the length of the vertical section of the "L" -shaped connecting rod 35.

As shown in fig. 4 and 5, the crankshaft clamping module 12 includes a left upper clamping plate 18-1 and a right upper clamping plate 18-2, the bottoms of the left upper clamping plate 18-1 and the right upper clamping plate 18-2 are both connected with a clamping plate connecting rod 21, the bottom of the clamping plate connecting rod 21 is connected with a lower clamping plate 20, a horizontal plate 23 is connected between the left upper clamping plate 18-1 and the right upper clamping plate 18-2, a plurality of infrared receivers 24 are uniformly distributed on the upper surface of the horizontal plate 23, the left upper clamping plate 18-1 is fixedly connected with a crankshaft front end shaft clamping plate 19-1, the right upper clamping plate 18-2 is connected with a crankshaft rear end shaft clamping plate 19-2 capable of moving back and forth, the crankshaft front end shaft clamping plate 19-1 is connected with a servo motor 25, the left upper clamping plate 18-1 and the right upper clamping plate 18-2 are both abutted against the upper surface of the operating platform 1, the clamp plate connecting rod 21 penetrates through the sliding groove 11, the lower clamp plate 20 abuts against the lower surface of the operating platform 1, the bottom of the operating platform 1 is connected with a third hydraulic cylinder 29, the third hydraulic cylinder 29 is connected with the lower clamp plate 20 located at the bottom of the right upper clamp plate 18-2, and the servo motor 25 and the third hydraulic cylinder 29 are connected with the electrical cabinet 2 through data lines 13.

The crankshaft is embedded and clamped between a crankshaft front end shaft clamping plate 19-1 and a crankshaft rear end shaft clamping plate 19-2, the servo motor 25 is connected with the crankshaft front end shaft, when the electric cabinet 2 controls the second hydraulic cylinder 38 to move up to the highest point after information analysis, the electric cabinet 2 controls the servo motor 25 to rotate, the rotation speed of the servo motor 25 is 20-25 rpm/min, the rotation time is 30-45 s, after the servo motor 25 rotates, the electric cabinet 2 controls the third hydraulic cylinder 29 to push forwards to the next infrared receiver 24 to receive infrared rays sent by the infrared emitter 15, the infrared receiver 24 transmits signals to the electric cabinet 2, and after the electric cabinet 2 is subjected to information analysis, the third hydraulic cylinder 29 is controlled to stop pushing forwards, and the next round of polishing program is started.

As shown in fig. 3-5, opposite end surfaces of the crankshaft front end shaft clamping plate 19-1 and the crankshaft rear end shaft clamping plate 19-2 are respectively provided with a crankshaft limiting groove 40, the upper surface and the lower surface of the operating platform 1 are respectively provided with two pulley grooves 27, the two pulley grooves 27 are respectively located on the left side and the right side of the sliding groove 11, the lower surfaces of the left upper clamping plate 18-1 and the right upper clamping plate 18-2 and the upper surface of the lower clamping plate 20 are respectively connected with two pulleys 22, and the pulleys 22 are embedded in the pulley grooves 27 to assist the movement of the left upper clamping plate 18-1, the right upper clamping plate 18-2 and the lower clamping plate 20.

As shown in fig. 5, the fixing plate 26 is connected to the bottom of the crankshaft rear end shaft clamping plate 19-2, and the fixing plate 26 is fixed to the right upper clamping plate 18-2 through a threaded pin, so that the crankshaft rear end shaft clamping plate 19-2 can be moved to the right upper clamping plate 18-2, and the crankshaft can be conveniently mounted and dismounted.

Examples

The dust cap 5 is lifted upwards, the threaded pin on the fixing plate 26 is unscrewed, the crankshaft is clamped in the crankshaft limiting groove 40 on the crankshaft front end shaft clamping plate 19-1 and the crankshaft rear end shaft clamping plate 19-2, the crankshaft rear end shaft clamping plate 19-2 is moved towards the middle, the threaded pin on the fixing plate 26 is screwed after the crankshaft is clamped, the crankshaft is fixed between the crankshaft front end shaft clamping plate 19-1 and the crankshaft rear end shaft clamping plate 19-2, and the dust cap 5 is put down.

The electrical cabinet 2 is debugged and the rotation speed of the servo motor 25 is set to be 25rpm/min, and the rotation time is set to be 30 s.

Before polishing begins, the first hydraulic cylinder 32 is in an extended state.

The electrical cabinet 2 controls the third hydraulic cylinder 29 to push forwards to the forward end of the horizontal plate 23, the first infrared receiver 24 receives the infrared rays emitted by the infrared emitter 15, the infrared receiver 24 transmits the signals to the electrical cabinet 2, the electrical cabinet 2 controls the third hydraulic cylinder 29 to stop pushing after signal processing and analysis, and simultaneously controls the first hydraulic cylinder 32 to retract, at the same time, the connecting rod 6 moves downwards and drives the polishing wheel 8 to move downwards, when the polishing wheel 8 moves downwards and is clamped on the main journal/connecting rod journal, the main journal/connecting rod journal extrudes the pressure sensor 36, the pressure sensor 36 transmits the generated pressure signals to the electrical cabinet 2, the electrical cabinet 2 controls the first hydraulic cylinder 32 to stop retracting after information analysis, controls the second hydraulic cylinder 38 to move upwards, at the moment, the L-shaped connecting rod 35 is located at the uppermost end of the connecting rod groove 34, the pressure sensor 36 is retracted into the connecting rod groove 34;

after the electrical cabinet 2 is subjected to information analysis and controls the second hydraulic cylinder 38 to move upwards to the highest point, the electrical cabinet 2 controls the servo motor 25 to rotate, the rotation speed of the servo motor 25 is 25rpm/min, the rotation time is 30s, the servo motor 25 rotates and simultaneously drives the crankshaft to rotate, the polishing wheel polishes the crankshaft, after 30s, the rotation of the servo motor 25 is finished, the electrical cabinet 2 controls the first hydraulic cylinder 32 to extend upwards, the polishing wheel 8 leaves the crankshaft, simultaneously controls the second hydraulic cylinder 38 to retract to the bottommost part, the pressure sensor 36 is flush with the upper surface of the main journal through groove 9, controls the third hydraulic cylinder 29 to push forwards until the next infrared receiver 24 receives infrared rays sent by the infrared emitter 15, the infrared receiver 24 transmits signals to the electrical cabinet 2, and after the electrical cabinet 2 is subjected to information analysis and processing, controls the third hydraulic cylinder 29 to stop pushing forwards, and the polishing process of the next round is started.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.