A drilling device for crankshaft machining

Abstract

The utility model discloses a kind of drilling device for crankshaft machining, it is related to crankshaft production field, including bottom plate, fixed plate, butt joint plate, feeding assembly and centering clamping assembly;The fixed plate and butt joint plate are oppositely installed on bottom plate, the fixed plate is fixedly connected with bottom plate, butt joint plate is movably connected with bottom plate, the feeding assembly is movably installed on bottom plate;Effectively solve the drill bit of the existing drilling equipment for crankshaft machining is not convenient to adjust drilling direction, so it is inconvenient to drill inclined oil hole to crankshaft, and when drilling to crankshaft, the two ends of crankshaft need to be fixed, but the existing drilling device cannot guarantee the coaxiality of the two ends of crankshaft, affect the drilling precision of crankshaft technical problem.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft production, specifically a drilling device for crankshaft machining. Background Technology

[0002] The crankshaft is the most critical, precise, and complex moving part in an internal combustion engine or compressor. Its function is to convert the linear reciprocating motion of the piston into rotational motion to output power. A crankshaft drilling device is a specialized tool for drilling lubrication holes in the crankshaft.

[0003] However, the drill bits of existing crankshaft drilling equipment are not easy to adjust the drilling direction, so it is not easy to drill angled oil holes in the crankshaft. Furthermore, when drilling the crankshaft, it is necessary to fix both ends of the crankshaft, but the existing drilling equipment cannot guarantee the coaxiality of both ends of the crankshaft, which affects the drilling accuracy of the crankshaft. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drilling device for crankshaft machining, which solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a drilling device for crankshaft machining, comprising a base plate, a fixing plate, a docking plate, a feeding assembly, and a centering clamping assembly; the fixing plate and the docking plate are mounted opposite to each other on the base plate, the fixing plate is fixedly connected to the base plate, the docking plate is movably connected to the base plate, and the feeding assembly is movably mounted on the base plate;

[0006] The centering clamping assembly is mounted on a fixed plate. The centering clamping assembly includes a first sliding groove and a pair of positioning plates. A groove is formed in the fixed plate, and a placement seat is fixedly installed in the groove. The first sliding groove is connected to the groove. A rotating shaft is rotatably mounted on the placement seat. A pair of hinge rods are hinged on the rotating shaft. The pair of positioning plates are respectively hinged to the pair of hinge rods. A pair of first sliding openings are formed on the fixed plate. A spring pressure strip is provided in each pair of first sliding openings. The pair of first sliding openings are connected to the inside of the first sliding groove. The pair of positioning plates are slidably connected to the pair of first sliding openings.

[0007] A rotating base is rotatably mounted on the docking plate, and a positioning rod is fixedly mounted on the rotating base.

[0008] Preferably, the feeding assembly includes a lifting seat, a first movable plate is slidably mounted on the base plate, a cylinder is fixedly mounted on one side of the first movable plate, the lifting seat is fixedly mounted on the telescopic end of the cylinder, a telescopic rod is fixedly mounted on the other side of the first movable plate, the telescopic end of the telescopic rod is fixedly connected to the lifting seat, and the lifting seat matches the shape of the crankshaft.

[0009] Preferably, a second movable plate is slidably mounted on the base plate, a chassis is movably mounted on the second movable plate, a turntable is rotatably mounted on the chassis, and a drill bit is fixedly mounted on the turntable.

[0010] Preferably, the base plate has a first cavity, and a pair of third threaded rods are rotatably installed in the first cavity. Each of the pair of third threaded rods is screwed with a first threaded block. The upper surface of the base plate has a third sliding opening. The first threaded block is slidably connected to the third sliding opening. The first threaded block is fixedly connected to the second moving plate. The pair of third threaded rods are driven by a synchronous transmission assembly.

[0011] Preferably, the synchronous transmission assembly includes a sprocket, a pair of third threaded rods extending to the outside of the fixed plate and respectively fixedly connected to the sprocket, the pair of sprockets being connected by a transmission chain, and a first motor for driving one of the sprockets being fixedly installed on the base plate.

[0012] Preferably, the second movable plate has a second cavity, a second threaded rod is rotatably installed in the second cavity, a second sliding groove is provided on the upper surface of the second movable plate, a second threaded block is screwed onto the second threaded rod, the second threaded block is slidably connected to the second sliding groove, and the second threaded block is fixedly connected to the chassis.

[0013] Preferably, the fixing plate has an installation groove, in which a first threaded rod is rotatably installed. A third threaded block is screwed onto the first threaded rod, and the third threaded block is fixedly connected to the mating plate. The upper surface of the fixing plate has a motor groove, in which a second motor for driving the first threaded rod is fixedly installed.

[0014] Beneficial effects

[0015] This utility model provides a drilling device for crankshaft machining, which has the following advantages:

[0016] 1. A base plate is installed, on which a fixing plate and a mating plate can be mounted. A centering clamping assembly is installed on the fixing plate to center and clamp one end of the crankshaft. A groove is provided for mounting a placement seat. A rotating shaft is rotatably mounted on the placement seat. Rotation of the rotating shaft drives a pair of hinge rods to swing, thereby moving a pair of positioning plates. A first sliding groove and a first sliding opening allow the positioning plates to move within the groove. The sliding mechanism guides the positioning plate. A spring pressure strip is installed in the first sliding opening to provide continuous clamping force to the positioning plate. When the hinge rod swings, the spring in the spring pressure strip is compressed, which can drive the positioning plate to move. When the hinge rod stops swinging, the spring in the spring pressure strip extends, and the positioning plate achieves self-locking through friction, thereby centering and clamping the crankshaft end. By installing a docking plate, after centering and clamping the crankshaft, moving the docking plate drives the positioning rod to move until the positioning rod is inserted into the positioning hole at the other end of the crankshaft, which can coaxially position the crankshaft.

[0017] 2. The first movable plate is installed. When the first movable plate moves, it can drive the cylinder, the telescopic rod, and the lifting seat to move together. The lifting seat can be installed to place the crankshaft on the lifting seat. The cylinder is installed and started. The telescopic end of the cylinder extends and retracts, driving the lifting seat to rise and fall. The telescopic rod can further play a guiding role during the rising and falling of the lifting seat. Attached Figure Description

[0018] Figure 1 This is a front view of the internal structure of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 for Figure 1 An enlarged diagram of A in the diagram.

[0021] In the diagram: 1. Base plate; 2. Fixing plate; 21. Groove; 22. Placement seat; 23. First sliding groove; 24. Hinge rod; 25. Positioning plate; 26. First sliding opening; 3. Connecting plate; 31. Rotary seat; 32. Positioning rod; 4. First moving plate; 41. Cylinder; 42. Lifting seat; 43. Telescopic rod; 5. Mounting groove; 51. First threaded rod; 52. Second motor; 6. Second moving plate; 61. Second sliding groove; 62. Second threaded rod; 7. Chassis; 71. Turntable; 72. Drill bit; 8. First motor; 81. Sprocket; 82. Transmission chain; 83. Third threaded rod; 100. Crankshaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Wherein, directional terms such as "upper" and "lower" mentioned herein are used in conjunction with... Figure 1 The orientation is used as a reference.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a drilling device for machining crankshaft 100, including a base plate 1, a fixing plate 2, a docking plate 3, a feeding assembly and a centering clamping assembly; the fixing plate 2 and the docking plate 3 are installed opposite to each other on the base plate 1, the fixing plate 2 is fixedly connected to the base plate 1, the docking plate 3 is movably connected to the base plate 1, and the feeding assembly is movably installed on the base plate 1.

[0024] The centering clamping assembly is installed on the fixed plate 2. The centering clamping assembly includes a first sliding groove 23 and a pair of positioning plates 25. The fixed plate 2 has a groove 21, and a placement seat 22 is fixedly installed in the groove 21. The first sliding groove 23 is connected to the groove 21. A rotating shaft is rotatably installed on the placement seat 22. A pair of hinge rods 24 are hinged on the rotating shaft. The pair of positioning plates 25 are respectively hinged to the pair of hinge rods 24. The fixed plate 2 has a pair of first sliding openings 26. A spring pressure strip is provided in each pair of first sliding openings 26. The pair of first sliding openings 26 are connected to the inside of the first sliding groove 23. The pair of positioning plates 25 are slidably connected to the pair of first sliding openings 26.

[0025] A rotating base 31 is rotatably mounted on the docking plate 3, and a positioning rod 32 is fixedly mounted on the rotating base 31.

[0026] With the base plate 1 installed, a fixing plate 2 and a docking plate 3 can be installed on the base plate 1. With the fixing plate 2 installed, a centering clamping assembly can be installed on the fixing plate 2. With the centering clamping assembly installed, one end of the crankshaft 100 can be centered and clamped. With the groove 21 provided, a placement seat 22 can be installed in the groove 21. With the placement seat 22 provided, a rotating shaft can be rotatably installed on the placement seat 22. With the rotating shaft provided, the drive motor drives the rotating shaft to rotate, which can drive a pair of hinge rods 24 to swing, thereby driving a pair of positioning plates 25 to move. With the first sliding groove 23 and the first sliding opening 26 provided, the positioning plates 25 can slide inside. The movement guides the positioning plate 25. A spring pressure strip is provided in the first sliding opening 26 to provide continuous clamping force to the positioning plate 25. When the hinge rod 24 swings, it can drive the positioning plate 25 to move. At this time, the spring in the spring pressure strip is compressed. When the hinge rod 24 stops swinging, the positioning plate 25 achieves self-locking through friction. At this time, the spring in the spring pressure strip extends, thereby centering and clamping the end of the crankshaft 100. After centering and clamping the crankshaft 100 by installing the docking plate 3, the docking plate 3 is moved to drive the positioning rod 32 to move until the positioning rod 32 is inserted into the positioning hole at the other end of the crankshaft 100, so that the crankshaft 100 can be coaxially positioned.

[0027] Furthermore, the feeding assembly includes a lifting seat 42, a first movable plate 4 is slidably mounted on the base plate 1, a cylinder 41 is fixedly mounted on one side of the first movable plate 4, the lifting seat 42 is fixedly mounted on the telescopic end of the cylinder 41, and a telescopic rod 43 is fixedly mounted on the other side of the first movable plate 4. The telescopic end of the telescopic rod 43 is fixedly connected to the lifting seat 42, and the lifting seat 42 matches the shape of the crankshaft 100.

[0028] The first movable plate 4 is installed, and when the first movable plate 4 moves, it can drive the cylinder 41, the telescopic rod 43, and the lifting seat 42 to move together. The crankshaft 100 can be placed on the lifting seat 42 by installing the lifting seat 42. The cylinder 41 is installed, and when the cylinder 41 is started, the telescopic end of the cylinder 41 extends and retracts, driving the lifting seat 42 to rise and fall. The telescopic rod 43 is installed, and during the rising and falling of the lifting seat 42, the telescopic rod 43 can further play a guiding role.

[0029] Furthermore, a second movable plate 6 is slidably mounted on the base plate 1, a chassis 7 is movably mounted on the second movable plate 6, a turntable 71 is rotatably mounted on the chassis 7, and a drill bit 72 is fixedly mounted on the turntable 71.

[0030] By installing a second movable plate 6, a chassis 7 can be installed on the second movable plate 6. The movement of the second movable plate 6 can drive the chassis 7 to move, thereby driving the drill bit 72 to move, so as to drill holes in the crankshaft 100. By installing the chassis 7, a turntable 71 can be installed on the chassis 7. By installing the turntable 71, starting the drive motor can drive the turntable 71 to rotate, thereby driving the drill bit 72 to rotate, so as to drill angled oil holes in the crankshaft 100.

[0031] Furthermore, a first cavity is provided in the base plate 1, and a pair of third threaded rods 83 are rotatably installed in the first cavity. Each pair of third threaded rods 83 is screwed with a first threaded block. A third sliding opening is provided on the upper surface of the base plate 1. The first threaded block is slidably connected to the third sliding opening. The first threaded block is fixedly connected to the second moving plate 6. The pair of third threaded rods 83 are driven by a synchronous transmission assembly.

[0032] By providing a first cavity, a third threaded rod 83 can be installed inside the first cavity. The rotation of the third threaded rod 83 can drive the first threaded block to move, and the movement of the first threaded block can drive the second moving plate 6 to move.

[0033] Furthermore, the synchronous transmission assembly includes a sprocket 81, a pair of third threaded rods 83 extending to the outside of the fixed plate 2 and fixedly connected to the sprocket 81 respectively, the pair of sprockets 81 being connected by a transmission chain 82, and a first motor 8 for driving one sprocket 81 being fixedly installed on the base plate 1.

[0034] The first motor 8 is installed. Starting the first motor 8 can drive a sprocket 81 to rotate. The sprocket 81 is connected to the transmission chain 82, which drives the transmission chain 82 to drive the other sprocket 81 to rotate. The synchronous rotation of the pair of sprockets 81 can drive the pair of third threaded rods 83 to rotate synchronously, which in turn can drive the second moving plate 6 to move.

[0035] Furthermore, a second cavity is provided inside the second movable plate 6, and a second threaded rod 62 is rotatably installed inside the second cavity. A second sliding groove 61 is provided on the upper surface of the second movable plate 6. A second threaded block is screwed onto the second threaded rod 62. The second threaded block is slidably connected to the second sliding groove 61, and the second threaded block is fixedly connected to the chassis 7.

[0036] By providing a second cavity, a second threaded rod 62 can be installed in the second cavity. By installing the second threaded rod 62, a second threaded block can be screwed onto the second threaded rod 62. The rotation of the second threaded rod 62 can drive the second threaded block to move. By providing a second sliding groove 61, the second threaded block can slide in the second sliding groove 61. The movement of the second threaded block can drive the chassis 7 to move.

[0037] Furthermore, the fixing plate 2 has an installation groove 5, in which a first threaded rod 51 is rotatably installed. A third threaded block is screwed onto the first threaded rod 51, and the third threaded block is fixedly connected to the docking plate 3. The upper surface of the fixing plate 2 has a motor groove, in which a second motor 52 for driving the first threaded rod 51 is fixedly installed.

[0038] The installation slot 5 allows the installation of a first threaded rod 51. The rotation of the first threaded rod 51 can move the third threaded block, which in turn moves the mating plate 3. The motor slot allows the installation of a second motor 52. Starting the second motor 52 can rotate the first threaded rod 51.

[0039] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0040] The working principle and usage process of this utility model are as follows: In use, the crankshaft 100 to be drilled is placed on the lifting seat 42. The driving cylinder 41 drives the lifting seat 42 to rise until it reaches a height suitable for fixing the crankshaft 100. The driving component (existing technology) is activated, which moves the first moving plate 4, thereby moving the lifting seat 42 and the crankshaft 100 to be drilled until they reach a position suitable for clamping between a pair of positioning plates 25. The motor is then started to rotate the shaft, causing a pair of hinge rods 24 to swing, thereby moving the pair of positioning plates 25 until one end of the crankshaft 100 is clamped and fixed. The second motor 52 is then started to rotate the first threaded rod 51, moving the mating plate 3. The crankshaft 100 is coaxially fixed by the positioning rod 32 inserted into the hole at the other end of the crankshaft 100. After fixing, the first motor 8 is started to drive the synchronous transmission assembly to work, thereby driving a pair of third threaded rods 83 to rotate, which in turn drives the second moving plate 6 to move, which in turn drives the chassis 7 and the drill bit 72 to move. When it moves to a suitable drilling position, the drill bit 72 is started to drill holes in the crankshaft 100. When drilling is required at different positions, the second threaded rod 62 can be started to rotate, thereby driving the chassis 7 to move, so as to drill holes at different positions of the crankshaft 100. The drive motor is started to drive the turntable 71 to rotate, thereby driving the drill bit 72 to rotate, which can also drill angled oil holes in the crankshaft 100.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling device for crankshaft machining, characterized in that, It includes a base plate (1), a fixing plate (2), a docking plate (3), a feeding assembly, and a centering clamping assembly; the fixing plate (2) and the docking plate (3) are installed opposite to each other on the base plate (1), the fixing plate (2) is fixedly connected to the base plate (1), the docking plate (3) is movably connected to the base plate (1), and the feeding assembly is movably installed on the base plate (1); The centering clamping assembly is installed on the fixed plate (2). The centering clamping assembly includes a first sliding groove (23) and a pair of positioning plates (25). The fixed plate (2) has a groove (21) and a placement seat (22) is fixedly installed in the groove (21). The first sliding groove (23) is connected to the groove (21). A rotating shaft is rotatably installed on the placement seat (22). A pair of hinge rods (24) are hinged on the rotating shaft. The pair of positioning plates (25) are respectively hinged to the pair of hinge rods (24). The fixed plate (2) has a pair of first sliding openings (26). A spring pressure strip is provided in each pair of first sliding openings (26). The pair of first sliding openings (26) are connected to the inside of the first sliding groove (23). The pair of positioning plates (25) are slidably connected to the pair of first sliding openings (26). A rotating base (31) is rotatably mounted on the docking plate (3), and a positioning rod (32) is fixedly mounted on the rotating base (31).

2. The drilling device for crankshaft machining according to claim 1, characterized in that, The feeding assembly includes a lifting seat (42), a first moving plate (4) is slidably mounted on the base plate (1), a cylinder (41) is fixedly mounted on one side of the first moving plate (4), the lifting seat (42) is fixedly mounted on the telescopic end of the cylinder (41), a telescopic rod (43) is fixedly mounted on the other side of the first moving plate (4), the telescopic end of the telescopic rod (43) is fixedly connected to the lifting seat (42), and the lifting seat (42) is matched with the shape of the crankshaft (100).

3. The drilling device for crankshaft machining according to claim 1, characterized in that, A second movable plate (6) is slidably mounted on the base plate (1), a chassis (7) is movably mounted on the second movable plate (6), a turntable (71) is rotatably mounted on the chassis (7), and a drill bit (72) is fixedly mounted on the turntable (71).

4. The drilling device for crankshaft machining according to claim 3, characterized in that, The base plate (1) has a first cavity, and a pair of third threaded rods (83) are rotatably installed in the first cavity. Each pair of third threaded rods (83) is screwed with a first threaded block. The upper surface of the base plate (1) has a third sliding opening. The first threaded block is slidably connected to the third sliding opening. The first threaded block is fixedly connected to the second moving plate (6). The pair of third threaded rods (83) are driven by a synchronous transmission assembly.

5. A drilling device for crankshaft machining according to claim 4, characterized in that, The synchronous transmission assembly includes a sprocket (81), a pair of third threaded rods (83) extending to the outside of the fixed plate (2) and fixedly connected to the sprocket (81) respectively, and the pair of sprockets (81) are connected by a transmission chain (82). A first motor (8) for driving one of the sprockets (81) is fixedly installed on the base plate (1).

6. A drilling device for crankshaft machining according to claim 3, characterized in that, The second movable plate (6) has a second cavity, and a second threaded rod (62) is rotatably installed in the second cavity. The upper surface of the second movable plate (6) has a second sliding groove (61). A second threaded block is screwed onto the second threaded rod (62). The second threaded block is slidably connected to the second sliding groove (61). The second threaded block is fixedly connected to the chassis (7).

7. The drilling device for crankshaft machining according to claim 1, characterized in that, The fixing plate (2) has an installation groove (5) in which a first threaded rod (51) is rotatably installed. A third threaded block is screwed onto the first threaded rod (51). The third threaded block is fixedly connected to the docking plate (3). The upper surface of the fixing plate (2) has a motor groove. A second motor (52) for driving the first threaded rod (51) is fixedly installed in the motor groove.

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