Crankshaft inclined oil hole drilling clamp

Abstract

The utility model discloses a crankshaft inclined oil hole drilling clamp which is characterized in that the crankshaft inclined oil hole drilling clamp comprises a bottom plate, angle vertical plates and a connecting plate, the number of the angle vertical plates is two, the angle vertical plates are vertically arranged on the bottom plate, the angle vertical plates are arranged in parallel, the connecting plate is arranged on inclined planes of the two angle vertical plates, and two V-shaped positioning blocks which are arranged at intervals are arranged on the connecting plate. A crank throw positioning block is arranged between the two V-shaped positioning blocks, a jacking mechanism used for jacking the crank throw part of the crankshaft to the crank throw positioning block is arranged on the connecting plate, a drill bushing support is arranged on the connecting plate, a mounting face parallel to the top face of the bottom plate is arranged on the top of the drill bushing support, and a drill bushing bearing plate is arranged on the mounting face. A vertically-arranged drill bushing is arranged on the drill bushing supporting plate, and the axis of the drill bushing intersects with the axis of the shaft rod part of the crankshaft. The crankshaft inclined oil hole drilling clamp has the advantages of being simple in structure, convenient to clamp, low in manufacturing cost, capable of guaranteeing that the crankshaft does not deviate in the inclined oil hole drilling process, high in drilling precision and capable of remarkably improving machining efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine adds the fixture field, concretely relates to a crankshaft drill inclined oil hole fixture. BACKGROUND

[0002] In the process that the crankshaft journal and the bearing shell cooperate, need lubricating oil to carry out lubrication, and the passage of lubricating oil needs to be provided with oil hole on the workpiece. Generally, the inclined oil hole is drilled on the front journal of the crankshaft, and a fixture is used to ensure the accuracy of the position of the crankshaft, so that the crankshaft does not deviate during the machining process. The existing inclined oil hole drilling fixture has a complex structure, is inconvenient to clamp, and has low machining efficiency. SUMMARY

[0003] In view of the above deficiencies in the prior art, the utility model provides a crankshaft drill inclined oil hole fixture, which has a simple structure, is convenient to clamp, has high positioning accuracy and high machining efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A crankshaft drill inclined oil hole fixture, characterized in that: comprising a bottom plate, an angle stand, a connecting plate, the angle stand is vertically arranged on the bottom plate, the angle stands are arranged in parallel, the connecting plate is arranged on the inclined surface of the two angle stands, two V-shaped positioning blocks are arranged on the connecting plate, a crankpin positioning block is arranged between the two V-shaped positioning blocks, a clamping mechanism for clamping the crankpin of the crankshaft on the crankpin positioning block is arranged on the connecting plate, a drill sleeve support is arranged on the connecting plate, the top of the drill sleeve support has a mounting surface parallel to the top surface of the bottom plate, a drill sleeve support plate is arranged on the mounting surface, a drill sleeve is arranged on the drill sleeve support plate in a vertical manner, and the axis of the drill sleeve intersects with the axis of the crankpin.

[0006] Further, the clamping mechanism comprises a cylinder support seat arranged on the connecting plate, the cylinder support seat has a cylinder mounting table, the included angle between the cylinder mounting table and the top surface of the connecting plate is 30°, a cylinder is arranged on the cylinder mounting table, the cylinder is installed upside down on the cylinder mounting table, and a pressure head is connected to the front end of the piston rod of the cylinder.

[0007] Further, a bushing is arranged between the drill sleeve and the drill sleeve support plate.

[0008] Further, a crankpin positioning support block is arranged on the connecting plate, and the crankpin positioning block is arranged on the crankpin positioning support block.

[0009] Further, the included angle between the inclined surface of the angle stand and the top surface of the bottom plate is 43°.

[0010] The utility model discloses beneficial effect includes: fixture structure is simple, clamping is convenient, and the manufacturing cost is low, can guarantee that the crankshaft does not occur deviation in the process of drilling inclined oil hole, and the drilling precision is high, has improved the processing efficiency remarkably. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural schematic diagram (cylinder is not shown) of the utility model,

[0012] Figure 2 It is Figure 1 The left view of the figure. PREFERRED EMBODIMENT

[0013] The utility model discloses beneficial effect includes: fixture structure is simple, clamping is convenient, and the manufacturing cost is low, can guarantee that the crankshaft does not occur deviation in the process of drilling inclined oil hole, and the drilling precision is high, has improved the processing efficiency remarkably.

[0014] A kind of as Figures 1-2 The inclined oil hole drilling fixture of crankshaft shown in the figure, including bottom plate 1, angle vertical board 2, connecting plate 3.The angle vertical board 2 is two, and vertically arranged on bottom plate 1, two angle vertical board 2 parallel arrangement.Connecting plate 3 is arranged on the inclined plane of two angle vertical board 2, and the included angle of the inclined plane of angle vertical board 2 and the top surface of bottom plate 1 is 43 °.The inclination angle of inclined plane and the angle of crankshaft upper shaft portion and inclined oil hole.Connecting plate 3 is provided with two interval arrangement V-shaped positioning block 4, and two V-shaped positioning block 4 position the two end shaft portions of crankshaft, wherein the inner side end surface of lower V-shaped positioning block 4 is used to position the crankpin end portion of crankshaft.

[0015] Two V-shaped positioning block 4 are provided with crankpin positioning block 5, and connecting plate 3 is provided with crankpin positioning support block 12, and crankpin positioning block 5 is installed on crankpin positioning support block 12.In natural state, crankpin position is lower than shaft portion, and the tangent of this crankpin positioning block 5 and crankpin portion of crankshaft.Connecting plate 2 is provided with the clamping mechanism for clamping the crankpin portion of crankshaft in crankpin positioning block 5, and the clamping mechanism includes cylinder support seat 9 provided on connecting plate 3, and the cylinder support seat 9 has cylinder installation table, and the included angle of cylinder installation table and the top surface of connecting plate 3 is 30 °, and the cylinder installation table is provided with cylinder 10, and the cylinder 10 is installed upside down on the cylinder installation table, and the front end of the piston rod of cylinder 10 is connected with pressure head.Crankshaft is fixed through pressure head, so as to guarantee that crankshaft does not displace in the processing.

[0016] Connecting plate 3 is provided with drill sleeve support 6, and the top of drill sleeve support 6 has installation surface parallel with the top surface of bottom plate 1, and drill sleeve support plate 7 is arranged on the installation surface, and drill sleeve 8 is arranged on drill sleeve support plate 7 in vertical arrangement, and bushing 11 is arranged between drill sleeve 8 and drill sleeve support plate 7.The axis of drill sleeve 8 intersects with the axis of the shaft rod portion of crankshaft.

[0017] The technical solutions provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the embodiments of the present application are described by applying specific examples; the above description of the embodiments is only applicable to helping understand the principles of the embodiments of the present application; meanwhile, for the general technical personnel in the art, the embodiments of the present application will have changes in the specific implementation manners and application ranges, and the above description should not be understood as the limitation of the embodiments of the present application.

Claims

1. A crankshaft drilling and tapping fixture characterized by: The utility model provides a connecting plate (3) is arranged on the inclined surface of two angle vertical boards (2), the connecting plate (3) is provided with two interval arrangement's V type positioning block (4) on, two V type positioning block (4) between being provided with the crank handle positioning block (5), the connecting plate (3) is provided with the top -tight mechanism for the crank handle of top -tight in the crank handle positioning block (5) on, the connecting plate (3) is provided with the drill bushing support (6), the top of drill bushing support (6) has the mounting surface parallel with the top surface of bottom plate (1), the mounting surface is provided with the drill bushing support plate (7), the drill bushing support plate (7) is provided with the vertical arrangement's drill bushing (8), the axis of drill bushing (8) with the axle rod department axis of crankshaft intersection.

2. A crankshaft drilling and tapping jig according to claim 1, wherein: The top -tight mechanism includes the cylinder support seat (9) being arranged on the connecting plate (3), the cylinder support seat (9) has the cylinder installation table on, the included angle between cylinder installation table and connecting plate (3) top surface is 30 DEG, the cylinder (10) is provided with on the cylinder installation table, the cylinder (10) is installed on the cylinder installation table in inversion, the piston rod front end of cylinder (10) is connected with the pressure head.

3. A crankshaft drilling and tapping jig according to claim 1, wherein: The drill bushing (8) and the drill bushing support plate (7) are provided with a bushing (11) therebetween.

4. The crankshaft bevel pinhole drilling jig according to claim 1, wherein: The connecting plate (3) is provided with a crank handle positioning support block (12), and the crank handle positioning block (5) is installed on the crank handle positioning support block (12).

5. The beveling fixture of claim 1 wherein: The included angle between the inclined surface of the angle vertical board (2) and the top surface of the bottom plate (1) is 43°.

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