Connecting rod crankshaft edge grinding auxiliary device

Abstract

The utility model relates to the field of crankshaft machining auxiliary equipment, in particular to a connecting rod crankshaft edge grinding auxiliary device. According to the connecting rod crankshaft edge polishing auxiliary device, the eccentricity can be adjusted according to the position of an eccentric journal on a crankshaft, the eccentric journals at different positions can be conveniently polished, weight balancing can be carried out according to the adjusted position of the eccentric journal, and the stability of the device is improved. A connecting rod crankshaft edge grinding auxiliary device comprises a base, a motor and the like, and the motor is connected to the upper side of the left portion of the base. The sliding block is controlled by the trackless cylinder to move, so that the position of the eccentric journal on the crankshaft is flush with the conveying shaft, and when the lower part of the crankshaft is heavier, the electric push rod at the upper part drives the balancing weight to move upwards, so that the eccentricity can be adjusted according to the position of the eccentric journal on the crankshaft; and eccentric journals at different positions can be polished conveniently, weight balancing can be carried out according to the adjusted positions of the eccentric journals, and the stability effect of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of crankshaft processing auxiliary equipment, especially to a connecting rod crankshaft edge polishing auxiliary device. BACKGROUND

[0002] In the mechanical manufacturing industry, the crankshaft as the key component of the rotating machinery equipment such as the engine, its machining precision and quality directly affect the overall performance and running stability of the equipment, the eccentric journal on the crankshaft is an important part of connecting the connecting rod and realizing energy conversion, and the surface finish and dimensional accuracy thereof are extremely high.

[0003] The existing connecting rod crankshaft edge polishing is usually to install the crankshaft between the clamps, then stick the polishing device to the eccentric journal on the crankshaft, and then drive the clamp to rotate to drive the crankshaft to rotate to polish the eccentric journal on the crankshaft. Different eccentric journals need to be rotated with different eccentric journals as the center. However, the current device cannot adjust the eccentricity according to the position of the eccentric journal on the crankshaft, and different equipment needs to be replaced to fix and rotate the crankshaft. When rotating with the eccentric journal as the center, the overall gravity center will be offset, so that the upper and lower parts of the crankshaft have different weights, which easily affects the stability.

[0004] Therefore, a connecting rod crankshaft edge polishing auxiliary device is needed, which can adjust the eccentricity according to the position of the eccentric journal on the crankshaft, facilitate polishing of eccentric journals at different positions, and can counterweight according to the position adjusted by the eccentric journal to improve the stability of the device. INVENTION CONTENTS

[0005] In order to overcome the shortcomings that the current device cannot adjust the eccentricity according to the position of the eccentric journal on the crankshaft, different equipment needs to be replaced to fix and rotate the crankshaft, and when rotating with the eccentric journal as the center, the overall gravity center will be offset, so that the upper and lower parts of the crankshaft have different weights, which easily affects the stability, the utility model provides a connecting rod crankshaft edge polishing auxiliary device which can adjust the eccentricity according to the position of the eccentric journal on the crankshaft, facilitate polishing of eccentric journals at different positions, and can counterweight according to the position adjusted by the eccentric journal to improve the stability of the device.

[0006] Technical scheme: a connecting rod crankshaft edge polishing auxiliary device, comprising a base, a motor, a transmission shaft, an eccentric component, a counterweight component and an adjusting component, the left side of the base is connected with the motor, the output shaft of the motor is connected with the transmission shaft, the transmission shaft output shaft is provided with the eccentric component which can adjust the eccentricity according to the position of the eccentric journal, the eccentric component is provided with the counterweight component which can counterweight according to the position adjusted by the eccentric journal, and the right part of the base is provided with the adjusting component which can adjust the position according to the length of the crankshaft.

[0007] Furthermore, particularly preferably, the eccentric assembly comprises a support disc, an air tank, screws and a trackless air cylinder, the right part of the transmission shaft is detachably connected with the support disc through the screws, the right side of the front and back parts of the support disc is connected with the air tank, the right side of the middle part of the support disc is connected with the trackless air cylinder, and the air tank is connected with the trackless air cylinder through the air pipes.

[0008] Furthermore, particularly preferably, the support frame and the support wheel frame are further included, the left part of the base is connected with the support frame, the upper part of the support frame is rotatably connected with a plurality of support wheel frames, and the support wheel frames are in contact with the support disc.

[0009] Furthermore, particularly preferably, the counterweight assembly is further included, the counterweight assembly comprises a connecting block, an outer disc, an electric push rod and a counterweight block, the outer disc is connected with the sliding block of the trackless air cylinder, the inner side of the middle part of the outer disc is connected with the connecting block, the front and back four sides of the outer disc are connected with the electric push rod, the extension end of the electric push rod is connected with the counterweight block, and the counterweight block is located in the outer disc.

[0010] Furthermore, particularly preferably, the adjusting assembly is further included, the adjusting assembly comprises a claw disc, an extension support column, a sliding groove plate and a pin, the right side of the outer disc is connected with the claw disc, the right part of the base is connected with two sliding groove plates, the extension support column is slidably connected between the sliding groove plates, and the pin is connected between the sliding groove plate and the fixed end of the extension support column.

[0011] Furthermore, particularly preferably, a plurality of butt joints are formed in the upper and lower parts of the sliding groove plate.

[0012] Beneficial effects: 1. The utility model discloses a trackless air cylinder control sliding block moves, makes the position of eccentric journal on the crankshaft and the transmission shaft are level, when the weight of the lower part of the crankshaft is heavier, drives the counterweight block to move up through the electric push rod of upper part, reaches the eccentricity of being able to be adjusted according to the position of eccentric journal on the crankshaft, is convenient for the polishing of eccentric journal of different positions, and can be counterweighted according to the position of eccentric journal, improves the stability effect of the device.

[0013] 2. The utility model discloses a claw disc is fixed to the crankshaft, and then the extension support column is moved and adjusted on the sliding groove plate, so that the right end of the crankshaft is sleeved on the extension end of the extension support column, and then the pin is inserted between the sliding groove plate and the extension support column for fixation, so that the position can be adjusted according to the length of the crankshaft, and the crankshaft of different lengths can be fixed conveniently. DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a three-dimensional structure schematic view of the support frame and the support wheel frame of the utility model.

[0016] Figure 3 It is a three-dimensional structure schematic view of eccentric assembly of the utility model.

[0017] Figure 4 It is a sectional three-dimensional structure schematic view of counterweight assembly of the utility model.

[0018] Figure 5 It is a sectional three-dimensional structure schematic view of adjusting assembly of the utility model.

[0019] Among them, the above-mentioned drawing includes the following sign: 1, base, 2, motor, 3, transmission shaft, 4, support frame, 5, support wheel frame, 6, support disc, 7, gas tank, 8, screw, 9, trackless air cylinder, 10, connecting block, 11, outer disc, 12, electric push rod, 13, counterweight block, 14, claw disc, 15, telescopic support column, 16, sliding groove plate, 17, pin. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further described in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] A connecting rod crankshaft edge polishing auxiliary device, as shown in Figures 1-5 shown, including base 1, motor 2, transmission shaft 3, support frame 4, support wheel frame 5, support disc 6, gas tank 7, screw 8, trackless air cylinder 9, connecting block 10, outer disc 11, electric push rod 12, counterweight block 13, claw disc 14, telescopic support column 15, sliding groove plate 16 and pin 17, the left upper side of base 1 is connected with motor 2, the output shaft of motor 2 is connected with transmission shaft 3, the left upper side of base 1 is connected with support frame 4, three support wheel frames 5 are rotatably connected to the upper part of support frame 4, support wheel frames 5 are in contact with support disc 6, support disc 6 is detachably connected with support disc 6 through eight screws 8 on the right part of transmission shaft 3, support disc 6 is connected with gas tank 7 on the right side of the front and rear two parts, trackless air cylinder 9 is connected with the right side of the middle part of support disc 6, gas tank 7 is connected with trackless air cylinder 9 through the air pipe, outer disc 11 is connected with the sliding block of trackless air cylinder 9, connecting block 10 is connected with the inner side of the middle part of outer disc 11, electric push rod 12 is connected with the upper and lower four sides, trackless air cylinder 9 is connected with the inner part of outer disc 11, claw disc 14 is connected with the right side of outer disc 11, two sliding groove plates 16 are connected with the right part of base 1, telescopic support column 15 is slidingly connected between sliding groove plates 16, pin 17 is connected between the fixed end of telescopic support column 15 and sliding groove plate 16, five docking grooves are opened on the upper and lower two parts of sliding groove plate 16, which facilitates the clamping of sliding groove plate 16 and adjacent pin 17 through the docking groove.

[0022] In use of the device, first, the base 1 is placed at the connecting rod crank edge polishing area, then the support disc 6 is fixed on the transmission shaft 3 through the screw 8, then the crank is fixed through the claw disc 14, then the telescopic support column 15 is moved and adjusted on the sliding groove plate 16, so that the right end of the crank is sleeved on the telescopic end of the telescopic support column 15, then the pin 17 is inserted between the sliding groove plate 16 and the telescopic support column 15 for fixation, so that the position can be adjusted according to the length of the crank, and different length cranks can be fixed conveniently, after the fixation is completed, the motor 2 is started, the transmission shaft 3 is driven to rotate, the support wheel frame 5 on the support frame 4 is driven to rotate, the support disc 6 is rotated, the outer disc 11, the claw disc 14 and the crank are rotated, the most central journal on the crank is polished through the polishing device, when the eccentric journal on the crank needs to be polished, the gas in the gas storage tank 7 and the trackless air cylinder 9 are cooperated to control the sliding block to move up and down, the outer disc 11 is moved up and down, the telescopic support column 15 is extended or contracted, the position of the eccentric journal on the crank is flush with the transmission shaft 3, so that the eccentric journal can be taken as the center to rotate, when the crank is moved downward to adjust the weight of the lower part of the crank to be heavier, the upper electric push rod 12 is started, the counterweight 13 is moved upward, on the contrary, when the weight of the upper part of the crank is heavier, the lower electric push rod 12 is started, the counterweight 13 is moved downward to counterweight, so that the eccentricity can be adjusted according to the position of the eccentric journal on the crank, the eccentric journal at different positions can be polished conveniently, and the counterweight can be adjusted according to the position of the eccentric journal, the stability of the device is improved.

[0023] The above is only an embodiment of the present application and is not used to limit the present application. Any equivalent replacement within the principle of the present application should be included in the protection scope of the present application. The contents not described in detail in the present application are the existing technology known by the technical personnel in the field.

Claims

1. An auxiliary device for grinding the edge of a connecting rod crankshaft, characterized in that: It includes a base (1), a motor (2), a transmission shaft (3), an eccentric component, a counterweight component, and an adjustment component. The upper left side of the base (1) is connected to the motor (2), and the output shaft of the motor (2) is connected to the transmission shaft (3). The output shaft of the transmission shaft (3) is provided with an eccentric component that can adjust the eccentricity according to the position of the eccentric journal. The eccentric component is provided with a counterweight component that can adjust the counterweight according to the adjusted position of the eccentric journal. The right side of the base (1) is provided with an adjustment component that can adjust the position according to the length of the crankshaft.

2. The connecting rod crankshaft edge grinding auxiliary device as described in claim 1, characterized in that: The eccentric assembly includes a support plate (6), an air tank (7), screws (8) and a trackless cylinder (9). The right side of the transmission shaft (3) is detachably connected to the support plate (6) by multiple screws (8). The right sides of both the front and rear sides of the support plate (6) are connected to the air tanks (7). The right side of the middle part of the support plate (6) is connected to the trackless cylinder (9). The air tanks (7) are all connected to the trackless cylinder (9) through air pipes.

3. The connecting rod crankshaft edge grinding auxiliary device as described in claim 1, characterized in that: It also includes a support frame (4) and a support wheel frame (5). The support frame (4) is connected to the upper left side of the base (1). Multiple support wheel frames (5) are rotatably connected to the upper part of the support frame (4). All support wheel frames (5) are in contact with the support plate (6).

4. The connecting rod crankshaft edge grinding auxiliary device as described in claim 1, characterized in that: It also includes a counterweight assembly, which includes a connecting block (10), an outer plate (11), an electric push rod (12), and a counterweight block (13). The slider of the trackless cylinder (9) is connected to the outer plate (11), the inner side of the middle of the outer plate (11) is connected to the connecting block (10), and the four sides of the upper, lower, front, and back are all connected to the electric push rod (12). The telescopic end of the electric push rod (12) is connected to the counterweight block (13), and the counterweight block (13) is located inside the outer plate (11).

5. The connecting rod crankshaft edge grinding auxiliary device as described in claim 1, characterized in that: It also includes an adjustment component, which includes a claw plate (14), a telescopic support column (15), a slide plate (16), and a locking pin (17). The claw plate (14) is connected to the right side of the outer plate (11), and two slide plates (16) are connected to the right side of the base (1). The telescopic support column (15) is slidably connected between the slide plates (16), and the sliding plates (16) are all connected to the fixed end of the telescopic support column (15) by a locking pin (17).

6. The connecting rod crankshaft edge grinding auxiliary device as described in claim 5, characterized in that: The upper and lower parts of the slide plate (16) have multiple docking grooves.

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