Hole milling device convenient to position and used for crankshaft machining

Abstract

The utility model relates to the technical field of crankshaft machining, and discloses a crankshaft machining hole milling device convenient to position, which comprises a working table and two positioning components, the two positioning components are respectively positioned on the left side and the right side in the working table, and the working table comprises a base, two supporting seats and two mounting plates. The bottoms of the two supporting seats are fixedly connected with the left side and the right side of the top of the base correspondingly, and the surfaces of the two mounting plates are movably connected with the interiors of the two supporting seats. According to the crankshaft hole milling device, the working table, the base, the supporting base, the mounting plate and other structural components are arranged, the positioning assembly is supported through the working table, a crankshaft is clamped and fixed through the positioning assembly, hole milling is conducted on the crankshaft through the hole milling assembly, the angle of the crankshaft is adjusted through the rotating assembly, and the effect of conveniently clamping and positioning the crankshaft is achieved; the problems that the crankshaft installation process is tedious, and the crankshaft cannot be conveniently disassembled and assembled are solved.

Description

Technical Field

[0001] This utility model belongs to the field of crankshaft machining technology, and in particular relates to a milling device for crankshaft machining that is easy to position. Background Technology

[0002] The crankshaft is a core component of an engine. It converts the reciprocating linear motion of the piston into circular rotational motion, and transmits the piston's force to the output shaft, thereby driving other components of the engine. In this process, the crankshaft is subjected to the combined action of centrifugal force from the rotating mass, periodically changing gas inertial force, and reciprocating inertial force, causing it to withstand bending and torsional loads.

[0003] During crankshaft machining, milling is required on the surface of the crankshaft. To prevent positional movement and hole displacement during milling, a clamping device is needed to clamp and fix both ends of the crankshaft. Existing crankshaft clamping devices use a screw and a clamping plate in combination. The screw drives the clamping plate to move, thereby clamping and fixing the crankshaft. A large force is required to rotate the screw to ensure the stability of the clamping plate. The crankshaft installation process is cumbersome and does not allow for convenient disassembly and assembly. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides a crankshaft milling device that can overcome or at least partially solve the above problems and facilitate positioning.

[0005] This utility model is implemented as follows: a milling device for crankshaft machining that facilitates positioning includes a worktable and two positioning components. The two positioning components are located on the left and right sides inside the worktable, respectively. The worktable includes a base, two support seats, and two mounting plates. The bottoms of the two support seats are fixedly connected to the left and right sides of the top of the base, respectively. The surfaces of the two mounting plates are movably connected to the interior of the two support seats. The left positioning component includes a positioning hydraulic cylinder, a pull plate, two pull rods, two connecting blocks, and two clamping blocks. The right side of the positioning hydraulic cylinder is fixedly connected to the left side of the left mounting plate. The left side of the pull plate is fixedly connected to the right side of the output end of the positioning hydraulic cylinder. The surfaces of the two pull rods are slidably connected to the top and bottom of the pull plate, respectively. The surfaces of the two connecting blocks are movably connected to the top and bottom of the left mounting plate, respectively. The sides of the two pull rods near the two connecting blocks are fixedly connected to the interior of the two connecting blocks. The left sides of the two clamping blocks are fixedly connected to the right sides of the two connecting blocks. A milling component is provided on the top of the worktable.

[0006] The workbench is used to support two positioning components;

[0007] The two positioning components are used to clamp and fix the crankshaft;

[0008] The milling assembly is used for milling holes in the crankshaft.

[0009] To facilitate crankshaft angle adjustment, preferably, a top plate is movably connected to the top of the left support base, and the right side of the bottom of the top plate is movably connected to the top of the right support base. A rotating component is provided inside the base, and a lifting component is provided on the rear side of the top of the base. The rotating component drives the two mounting plates to rotate, and the crankshaft is rotated and adjusted by two positioning components during the rotation of the two mounting plates.

[0010] For milling the crankshaft, preferably, the milling assembly includes a drive motor, a threaded rod, a moving block, and a milling machine. The left side of the drive motor is fixedly connected to the right side of the top plate. The surface of the threaded rod is movably connected to the interior of the top plate. The right side of the threaded rod is fixedly connected to the left side of the output end of the drive motor. The surface of the moving block is movably connected to the interior of the top plate. The interior of the moving block is threadedly connected to the surface of the threaded rod. The top of the milling machine is fixedly connected to the bottom of the moving block. The drive motor drives the threaded rod to rotate, and during the rotation of the threaded rod, it drives the moving block to move. During the movement of the moving block, the position of the milling machine is adjusted, and the milling machine performs milling on the crankshaft.

[0011] To drive the two mounting plates to rotate, preferably, the rotating assembly includes a dual-axis motor, two transmission gears, and two connecting gears. The bottom of the dual-axis motor is fixedly connected to the bottom of the base. The interiors of the two transmission gears are fixedly connected to the surfaces of the left and right output ends of the dual-axis motor, respectively. The surfaces of the two connecting gears are movably connected to the left and right sides of the base, respectively. The surfaces of both transmission gears mesh with the surfaces of the two connecting gears. The surfaces of both mounting plates mesh with the surfaces of the two connecting gears. The dual-axis motor drives the two transmission gears to rotate, which in turn drives the two connecting gears to rotate, and the rotation of the two connecting gears drives the two mounting plates to rotate.

[0012] To drive the milling machine to move up and down, preferably, the lifting assembly includes a fixed column, a connecting cylinder, and a lifting hydraulic cylinder. The bottom of the fixed column is fixedly connected to the rear side of the top of the base. The surface of the connecting cylinder is slidably connected to the inside of the fixed column. The bottom of the lifting hydraulic cylinder is fixedly connected to the bottom inside the fixed column. The top of the output end of the lifting hydraulic cylinder is fixedly connected to the top inside the connecting cylinder. The front side of the connecting cylinder is fixedly connected to the rear side of the top plate. The lifting hydraulic cylinder drives the connecting cylinder to move, and during the movement of the connecting cylinder, the top plate drives the milling machine to move.

[0013] To prevent the top plate from tilting, preferably, the top of each of the two support seats is fixedly connected to a limiting frame, and the surfaces of the two limiting frames are slidably connected to the left and right sides inside the top plate, respectively. The movement direction of the top plate is restricted by the two limiting frames to prevent the top plate from tilting.

[0014] To restrict the movement direction of the two connecting blocks, preferably, two sliding rods are fixedly connected inside the mounting plate on the left side. The surfaces of the two sliding rods are slidably connected to the inside of the two connecting blocks. The movement direction of the two connecting blocks is restricted by the two sliding rods to prevent the two connecting blocks from shifting during movement.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model achieves the effect of conveniently clamping and positioning the crankshaft by setting up structural components such as a worktable, base, support seat and mounting plate, using the worktable to support the positioning component, using the positioning component to clamp and fix the crankshaft, using the milling component to mill the crankshaft, using the rotation component to adjust the angle of the crankshaft, and using the lifting component to drive the milling machine to move. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the workbench provided in an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the mounting plate provided in an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the positioning component provided in an embodiment of the present utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the bottom of the top plate provided in an embodiment of the present invention.

[0022] In the diagram: 1. Workbench; 101. Base; 102. Support seat; 103. Mounting plate; 2. Positioning assembly; 201. Positioning hydraulic cylinder; 202. Pull plate; 203. Pull rod; 204. Connecting block; 205. Clamping block; 3. Milling assembly; 301. Drive motor; 302. Threaded rod; 303. Moving block; 304. Milling machine; 4. Top plate; 5. Rotation assembly; 501. Dual-axis motor; 502. Drive gear; 503. Connecting gear; 6. Lifting assembly; 601. Fixed column; 602. Connecting cylinder; 603. Lifting hydraulic cylinder; 7. Limiting frame; 8. Slide rod. Detailed Implementation

[0023] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0024] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 5As shown in the figure, the present invention provides a crankshaft milling device for easy positioning, including a worktable 1 and two positioning components 2. The two positioning components 2 are located on the left and right sides inside the worktable 1, respectively. The worktable 1 includes a base 101, two support seats 102, and two mounting plates 103. The bottoms of the two support seats 102 are fixedly connected to the left and right sides of the top of the base 101, respectively. The surfaces of the two mounting plates 103 are movably connected to the interior of the two support seats 102. The left positioning component 2 includes a positioning hydraulic cylinder 201, a pull plate 202, two pull rods 203, two connecting blocks 204, and two clamping blocks 205. The right side of the positioning hydraulic cylinder 201 is fixedly connected to the left side of the left mounting plate 103, and the left side of the pull plate 202 is fixedly connected to the positioning hydraulic cylinder 205. The right side of the output end of the pressure cylinder 201 is fixedly connected. The surfaces of the two pull rods 203 are slidably connected to the top and bottom of the inside of the pull plate 202, respectively. The surfaces of the two connecting blocks 204 are movably connected to the top and bottom of the inside of the left mounting plate 103, respectively. The sides of the two pull rods 203 near the two connecting blocks 204 are fixedly connected to the inside of the two connecting blocks 204. The left sides of the two clamping blocks 205 are fixedly connected to the right sides of the two connecting blocks 204. A milling assembly 3 is provided on the top of the worktable 1. The worktable 1 is used to support the two positioning assemblies 2. The two positioning assemblies 2 are used to clamp and fix the crankshaft. The milling assembly 3 is used to mill the crankshaft. To facilitate the adjustment of the crankshaft angle, a top plate 4 is movably connected to the top of the left support seat 102. The bottom right side of the top plate 4 is movably connected to the top of the right support base 102. A rotating assembly 5 is installed inside the base 101, and a lifting assembly 6 is installed on the rear side of the top of the base 101. The rotating assembly 5 drives the two mounting plates 103 to rotate. During the rotation of the two mounting plates 103, the crankshaft is adjusted by two positioning assemblies 2. For milling the crankshaft, the milling assembly 3 includes a drive motor 301, a threaded rod 302, a moving block 303, and a milling machine 304. The left side of the drive motor 301 is fixedly connected to the right side of the top plate 4. The surface of the threaded rod 302 is movably connected to the interior of the top plate 4. The right side of the threaded rod 302 is fixedly connected to the left side of the output end of the drive motor 301. The surface of the moving block 303 is movably connected to the interior of the top plate 4. The movable block 303 is threadedly connected to the surface of the threaded rod 302. The top of the milling machine 304 is fixedly connected to the bottom of the movable block 303. The threaded rod 302 is rotated by the drive motor 301, which in turn moves the movable block 303. During the movement of the movable block 303, the position of the milling machine 304 is adjusted, and the milling machine 304 performs milling on the crankshaft. To drive the two mounting plates 103 to rotate, the rotating assembly 5 includes a dual-axis motor 501, two drive gears 502, and two connecting gears 503. The bottom of the dual-axis motor 501 is fixedly connected to the bottom of the base 101. The interiors of the two drive gears 502 are fixedly connected to the surfaces of the left and right output ends of the dual-axis motor 501, respectively.The surfaces of the two connecting gears 503 are movably connected to the left and right sides of the interior of the base 101, respectively. The surfaces of the two transmission gears 502 are meshed with the surfaces of the two connecting gears 503. The surfaces of the two mounting plates 103 are meshed with the surfaces of the two connecting gears 503. The two transmission gears 502 are driven to rotate by the dual-axis motor 501. During the rotation of the two transmission gears 502, the two connecting gears 503 are driven to rotate. During the rotation of the two connecting gears 503, the two mounting plates 103 are driven to rotate. In order to drive the milling machine 304 to move up and down, the lifting assembly 6 includes a fixed column 601, a connecting cylinder 602, and a lifting hydraulic cylinder 603. The bottom of the fixed column 601 is fixedly connected to the rear side of the top of the base 101. The surface of the connecting cylinder 602 is slidably connected to the interior of the fixed column 601. The bottom of the lifting hydraulic cylinder 603 is fixedly connected to the bottom of the interior of the fixed column 601. The top of the output end of the pressure cylinder 603 is fixedly connected to the top of the interior of the connecting cylinder 602. The front side of the connecting cylinder 602 is fixedly connected to the rear side of the top plate 4. The connecting cylinder 602 is moved by the lifting hydraulic cylinder 603. During the movement of the connecting cylinder 602, the milling machine 304 is moved by the top plate 4. To prevent the top plate 4 from tilting, limit frames 7 are fixedly connected to the top of both support seats 102. The surfaces of the two limit frames 7 are slidably connected to the left and right sides of the interior of the top plate 4, respectively. The two limit frames 7 restrict the movement direction of the top plate 4 and prevent the top plate 4 from tilting. To restrict the movement direction of the two connecting blocks 204, two sliding rods 8 are fixedly connected to the interior of the left mounting plate 103. The surfaces of the two sliding rods 8 are slidably connected to the interior of the two connecting blocks 204. The two sliding rods 8 restrict the movement direction of the two connecting blocks 204 and prevent the two connecting blocks 204 from shifting during movement.

[0026] The working principle of this utility model:

[0027] When milling the crankshaft, the crankshaft is placed on top of the bottom clamping block 205. The positioning hydraulic cylinder 201 is activated, and its output end moves the pull plate 202 to the left. During this movement, the pull plate 202 moves the two connecting blocks 204 to opposite ends via the two pull rods 203. This movement of the connecting blocks 204 also moves the two clamping blocks 205, which clamp and position the crankshaft. The dual-axis motor 501 is then activated, and its output ends on both sides rotate the two transmission gears 502. This rotation of the transmission gears 502 then rotates the two connecting gears... When wheel 503 rotates, the two connecting gears 503 rotate, driving the two mounting plates 103 to rotate. During the rotation of the two mounting plates 103, the crankshaft is adjusted. The drive motor 301 is started, driving the threaded rod 302 to rotate. During the rotation of the threaded rod 302, the moving block 303 moves. During the movement of the moving block 303, the position of the milling machine 304 is adjusted. The lifting hydraulic cylinder 603 is started, and the output end of the lifting hydraulic cylinder 603 drives the top plate 4 to move downward through the connecting cylinder 602. During the movement of the top plate 4, the milling machine 304 moves, and the milling machine 304 performs milling processing on the crankshaft.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A hole milling device for crankshaft machining, facilitating positioning, comprising a workbench (1) and two positioning assemblies (2), the two positioning assemblies (2) are respectively located on the left and right sides inside the workbench (1), characterized in that: The workbench (1) comprises a base (101), two supporting seats (102), two mounting plates (103), the bottoms of the two supporting seats (102) are fixedly connected with the left and right sides of the top of the base (101) respectively, and the surfaces of the two mounting plates (103) are movably connected with the interiors of the two supporting seats (102), the left positioning assembly (2) comprises a positioning hydraulic cylinder (201), a pull plate (202), two pull rods (203), two connecting blocks (204) and two clamping blocks (205), the right side of the positioning hydraulic cylinder (201) is fixedly connected with the left side of the left mounting plate (103), the left side of the pull plate (202) is fixedly connected with the right side of the output end of the positioning hydraulic cylinder (201), the surfaces of the two pull rods (203) are slidably connected with the top and bottom of the interior of the pull plate (202) respectively, the surfaces of the two connecting blocks (204) are movably connected with the top and bottom of the interior of the left mounting plate (103) respectively, the side, close to the two connecting blocks (204), of the two pull rods (203) is fixedly connected with the interior of the two connecting blocks (204) respectively, and the left sides of the two clamping blocks (205) are fixedly connected with the right sides of the two connecting blocks (204). The workbench (1) is used for supporting two positioning assemblies (2); The two positioning assemblies (2) are used for clamping and fixing the crankshaft. The milling hole assembly (3) is used for milling hole processing on the crankshaft.

2. A hole milling device for crankshaft machining for easy positioning as claimed in claim 1 characterized in that: The top of the left supporting seat (102) is movably connected with a top plate (4), the right side of the bottom of the top plate (4) is movably connected with the top of the right supporting seat (102), the interior of the base (101) is provided with a rotating assembly (5), and the rear side of the top of the base (101) is provided with a lifting assembly (6).

3. A hole milling device for use in the machining of a crankshaft, which facilitates positioning, according to claim 2, characterized in that: The milling hole assembly (3) comprises a transmission motor (301), a threaded rod (302), a moving block (303) and a milling hole machine (304), the left side of the transmission motor (301) is fixedly connected with the right side of the top plate (4), the surface of the threaded rod (302) is movably connected with the interior of the top plate (4), the right side of the threaded rod (302) is fixedly connected with the left side of the output end of the transmission motor (301), the surface of the moving block (303) is movably connected with the interior of the top plate (4), the interior of the moving block (303) is screwedly connected with the surface of the threaded rod (302), and the top of the milling hole machine (304) is fixedly connected with the bottom of the moving block (303).

4. A hole milling device for crankshaft machining for easy positioning as claimed in claim 2 wherein: The rotating component (5) comprises a double-shaft motor (501), two transmission gears (502) and two connecting gears (503), the bottom of the double-shaft motor (501) is fixedly connected with the bottom of the inner bottom of the base (101), the inner portions of the two transmission gears (502) are fixedly connected with the surfaces of the left and right side output ends of the double-shaft motor (501) respectively, the surfaces of the two connecting gears (503) are movably connected with the left and right sides of the inner portion of the base (101) respectively, the surfaces of the two transmission gears (502) are movably connected with the surfaces of the two connecting gears (503) respectively, and the surfaces of the two mounting plates (103) are movably connected with the surfaces of the two connecting gears (503) respectively.

5. A hole milling device for use in the machining of a crankshaft, which facilitates positioning, as claimed in claim 3, characterized in that: The lifting component (6) comprises a fixing column (601), a connecting barrel (602) and a lifting hydraulic cylinder (603), the bottom of the fixing column (601) is fixedly connected with the rear side of the top of the base (101), the surface of the connecting barrel (602) is slidably connected with the inner portion of the fixing column (601), the bottom of the lifting hydraulic cylinder (603) is fixedly connected with the bottom of the inner portion of the fixing column (601), the top of the output end of the lifting hydraulic cylinder (603) is fixedly connected with the top of the inner portion of the connecting barrel (602), and the front side of the connecting barrel (602) is fixedly connected with the rear side of the top plate (4).

6. A hole milling device for crankshaft machining for easy positioning as claimed in claim 2 wherein: The top of each of the two supporting seats (102) is fixedly connected with a limiting frame (7), and the surfaces of the two limiting frames (7) are slidably connected with the left and right sides of the inner portion of the top plate (4) respectively.

7. A hole milling device for use in the machining of a crankshaft, which facilitates positioning, according to claim 1, characterized in that: The inner portion of the left mounting plate (103) is fixedly connected with two sliding rods (8), and the surfaces of the two sliding rods (8) are slidably connected with the inner portions of the two connecting blocks (204).

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