Crankshaft inclined oil hole drilling tool

By designing a crankshaft drilling inclined oil hole tooling including a support frame, a support block, and a limiting member, the problem of frequent replacement of positioning devices when drilling inclined oil holes in the crankshaft in the prior art is solved, and stable positioning and efficient processing of crankshafts of different sizes are achieved.

CN222767807UActive Publication Date: 2025-04-18CHONGQING YUNYANG CRANKSHAFT CO LTD
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Patent Information

Application Number
CN202420864549.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-24
Publication Date
2025-04-18
Estimated Expiration
2034-04-24

AI Technical Summary

Technical Problem

In the prior art, when drilling inclined oil holes in the crankshaft, the drilling machine processing direction can only be vertical, resulting in the need for auxiliary positioning devices for processing inclined holes. Different models of crankshaft spindle diameters and connecting rod diameters are different, and different types of positioning devices need to be replaced frequently, which is less versatile.

Method used

A crankshaft drilling inclined oil hole tooling is designed, including a support frame, a support block, a first limiting member and a second limiting member. Through the support inclined plate, a support block, a positioning rod and a threaded hole of the support frame, the limit fixation of the axial and radial directions of the crankshaft is achieved.

Benefits of technology

The tooling can be installed and disassembled simply, easy to operate, adapt to crankshafts of different sizes, improves machining stability and accuracy, reduces the replacement frequency of positioning devices, and enhances versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an inclined oil hole drilling tool for a crankshaft, which comprises a support frame, an inclined oil hole drilling tool and an inclined oil hole drilling tool, the two supporting blocks are vertically arranged on the supporting inclined plate in a spaced mode and used for supporting the bent neck of the crankshaft; the first limiting piece is arranged on the supporting inclined plate, located between the two supporting blocks and used for limiting the crankshaft in the axial direction; and the second limiting piece is arranged on the supporting inclined plate, is spaced from the first limiting piece and is used for limiting the crankshaft in the radial direction. When the inclined oil hole drilling tool for the crankshaft is used, a bent neck of the crankshaft is firstly placed on the supporting block, then the crankshaft is limited and fixed in the axial direction and the radial direction through the first limiting piece and the second limiting piece respectively, follow-up drilling machining is facilitated, and the inclined oil hole drilling tool for the crankshaft is easy to assemble and disassemble and convenient to operate.
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Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing equipment, in particular to a crankshaft inclined oil hole drilling tool. Background Art

[0002] In the prior art, the crankshaft is drilled with a vertical drilling machine. When drilling, the crankshaft is first positioned using a positioning fixture, then the crankshaft is clamped with a vise, and then the drill bit is adjusted to the position where the inclined oil hole needs to be drilled. However, the processing direction of the drilling machine can only be vertical, so the processing of the inclined hole requires a device to assist in positioning to ensure processing accuracy and ease of operation. In the actual production and research and development process, different models of crankshafts have different spindle diameters and connecting rod diameters, and different types of positioning devices need to be frequently replaced or multiple sets of devices with similar structures need to be prepared, which has poor versatility. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a crankshaft inclined oil hole drilling tool to solve the technical problem in the related technology that different models of crankshafts have different sizes of main shaft diameters and connecting rod diameters, and different types of positioning devices need to be frequently replaced or multiple sets of positioning devices with similar structures need to be prepared, resulting in poor versatility.

[0004] The utility model provides a crankshaft inclined oil hole drilling tool, comprising:

[0005] A support frame, the support frame comprising a support inclined plate;

[0006] Two support blocks are vertically arranged on the support inclined plate and spaced apart to support the crankshaft neck;

[0007] A first limiting member, provided on the supporting inclined plate and located between the two supporting blocks, for limiting the axial direction of the crankshaft;

[0008] The second limiting member is arranged on the supporting inclined plate and is spaced apart from the first limiting member, and is used for limiting the radial direction of the crankshaft.

[0009] Furthermore, the first limiting member includes a positioning rod arranged on the supporting inclined plate, and a threaded hole is opened on the upper part of the positioning rod perpendicular to its axis. A locking bolt is freely passed through the threaded hole, and a locking nut is threadedly connected to the locking bolt.

[0010] Furthermore, the second limiting member includes a first fixing rod and a second fixing rod and a pressure plate which are spaced apart from each other, wherein one end of the first fixing rod is connected to the supporting inclined plate, and the other end is connected to the pressure plate, and one end of the second fixing rod is connected to the supporting inclined plate, and the other end is abutted against the pressure plate, and one side of the pressure plate has a pressure head.

[0011] Furthermore, a through waist-shaped hole groove is opened on the pressure plate, and a threaded rod is provided at the end of the first fixing rod away from the supporting inclined plate. The end of the threaded rod away from the supporting inclined plate passes through the waist-shaped hole groove and is screwed with a clamping nut. The clamping nut can move back and forth along the axial direction of the threaded rod so that it can be against or away from the pressure plate.

[0012] Furthermore, a slide groove is provided on the pressing plate, and the slide groove extends from one end of the pressing plate along its length direction. One end of the second fixing rod away from the supporting inclined plate abuts against the slide groove and can slide along the extension direction of the slide groove.

[0013] Furthermore, a V-shaped groove is provided in the middle of the upper ends of the two support blocks, and the upper ends of the V-shaped groove have an opening.

[0014] Furthermore, mounting grooves are provided on two inner walls facing each other of the V-shaped groove, and the mounting grooves extend from one end of the support block to the other end, and a plug-in block matching with the mounting groove is inserted into the mounting groove.

[0015] Furthermore, the support frame also includes a support bottom plate and two support side plates arranged on the support bottom plate, and the support inclined plate is arranged on the inclined surfaces of the two support side plates.

[0016] Furthermore, U-shaped notches are provided at opposite ends of the support base plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] When the crankshaft inclined oil hole drilling tool of the utility model is used, the crank neck of the crankshaft is first placed on the support block, and then the axial and radial directions of the crankshaft are limited and fixed by the first limit member and the second limit member respectively, so as to facilitate subsequent drilling processing. The installation and disassembly are simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a crankshaft oblique oil hole drilling tool according to an embodiment of the utility model;

[0020] Figure 2 It is a partial schematic diagram of a crankshaft oblique oil hole drilling tool according to an embodiment of the utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of a pressure plate in a crankshaft oblique oil hole drilling tooling according to an embodiment of the utility model;

[0022] Figure 4 This is a front view of a support block in a crankshaft oblique oil hole drilling tooling according to an embodiment of the utility model;

[0023] Figure 5 This is a cross-sectional schematic diagram of a crankshaft clamping tool for drilling inclined oil holes in a crankshaft according to an embodiment of the utility model;

[0024] Description of Figure Numbers:

[0025] 100, support frame; 110, support inclined plate; 120, support side plate; 130, support bottom plate; 131, U-shaped notch;

[0026] 200, support block; 210, V-shaped groove; 220, mounting groove; 230, plug-in block;

[0027] 300, first position limiting member; 310, positioning rod; 320, locking bolt; 330, locking nut;

[0028] 400, second position-limiting member; 410, first fixing rod; 420, second fixing rod; 430, pressing plate; 431, waist-shaped hole groove; 432, sliding groove; 440, pressing head; 450, threaded rod; 460, clamping nut;

[0029] 500. Crankshaft.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] In the description of the utility model, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions that the utility model can be implemented, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effect that the utility model can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0033] like Figure 1As shown, an embodiment of the utility model provides a crankshaft inclined oil hole drilling tool, including a support frame 100, a support block 200, a first limit member 300 and a second limit member 400, the support frame 100 includes a support inclined plate 110, two support blocks 200 are arranged, which are vertically arranged on the support inclined plate 110 and arranged at intervals, for supporting the crank neck of the crankshaft 500; the first limit member 300 is arranged on the support inclined plate 110 and is located between the two support blocks 200, for limiting the axial direction of the crankshaft 500; the second limit member 400 is arranged on the support inclined plate 110 and is spaced from the first limit member 300, for limiting the radial direction of the crankshaft 500.

[0034] In the embodiment of the utility model, when in use, the crank neck of the crankshaft 500 is first placed on the support block 200, and then the axial and radial directions of the crankshaft 500 are limited and fixed respectively by the first limit member 300 and the second limit member 400 to facilitate subsequent drilling processing. The installation and disassembly are simple and easy to operate.

[0035] like Figure 2 As shown, in the embodiment of the utility model, the first limiting member 300 includes a positioning rod 310 arranged on the supporting inclined plate 110, the positioning rod 310 is threadedly connected to the supporting inclined plate 110, and a threaded hole is opened on the upper part of the positioning rod 310 perpendicular to its axis, and a locking bolt 320 is freely passed through the threaded hole, and a locking nut 330 is threadedly connected to the locking bolt 320, and the locking nut 330 is located between the bolt head of the locking bolt 320 and the positioning rod 310. When in use, by rotating the clamping bolt, the clamping bolt abuts against the crank of the crankshaft along its axial direction to limit and fix it, and by adjusting the distance of the locking nut 330 on the locking bolt 320, the distance that the locking bolt 320 is screwed into the threaded hole can be limited, thereby limiting the moving distance of the clamping bolt along its axial direction.

[0036] like Figure 2 As shown, in an embodiment of the utility model, the second limit member 400 includes a first fixing rod 410 and a second fixing rod 420 and a pressure plate 430 which are spaced apart. One end of the first fixing rod 410 is connected to the supporting inclined plate 110, and the other end is connected to the pressure plate 430. One end of the second fixing rod 420 is connected to the supporting inclined plate 110, and the other end is abutted against the pressure plate 430. One side of the pressure plate 430 has a pressure head 440, wherein the first fixing rod 410 and the second fixing rod 420 are both threadedly connected to the supporting inclined plate 110 for easy installation and disassembly. The pressure plate 430 is horizontally positioned by the first fixing rod 410 and the second fixing rod 420 so that the pressure head 440 can better press the connecting rod neck of the crankshaft 500 to improve stability.

[0037] like Figure 2As shown, in the embodiment of the utility model, a through waist-shaped hole groove 431 is opened on the pressure plate 430, and a threaded rod 450 is provided at the end of the first fixing rod 410 away from the supporting inclined plate 110, and a clamping nut 460 is screwed through the waist-shaped hole groove 431 at the end of the threaded rod 450 away from the supporting inclined plate 110, and the clamping nut 460 can reciprocate along the axial direction of the threaded rod 450 so as to abut or separate from the pressure plate 430. When in use, by rotating the clamping nut 460, the pressure plate 430 can move upward along the axial direction of the threaded rod 450, and then the connecting rod neck of the crankshaft 500 is located under the pressure head 440 of the pressure plate 430, and then the clamping nut 460 is rotated again, and the clamping nut 460 moves downward along the axial direction of the threaded rod 450 until the pressure head 440 of the pressure plate 430 is pressed down onto the connecting rod neck of the crankshaft 500, so as to limit and fix it in the radial direction.

[0038] like Figure 3 As shown, in the embodiment of the utility model, a slide groove 432 is provided on the pressure plate 430, and the slide groove 432 extends from one end of the pressure plate 430 along its length direction. The end of the second fixing rod 420 away from the supporting inclined plate 110 abuts against the slide groove 432, and can slide along the extension direction of the slide groove 432. When in use, the pressure plate 430 can adjust the position of its pressure head 440 away from the connecting rod neck axis of the crankshaft 500 under the action of the slide groove 432 and the waist-shaped hole groove 431, and can be adaptively adjusted according to the crankshafts 500 of different sizes to improve practicality.

[0039] like Figure 2 and 4 As shown, in the embodiment of the utility model, a V-groove 210 is provided in the middle of the upper end of the two support blocks 200, and the upper end of the V-groove 210 has an opening. The crank necks at both ends of the crankshaft 500 are supported by the cooperation between the V-grooves 210 of the two support blocks 200, and the crankshaft 500 is fixed and limited by the limiting members for subsequent processing. Moreover, since the crank size of the crankshaft 500 is larger than the crank neck of the crankshaft 500, under the action of gravity, the crank of the crankshaft 500 will abut against the support block 200 located on the downwardly inclined end of the support inclined plate 110 for support, which can adapt to crankshafts 500 of different sizes and improve practicality.

[0040] like Figure 2 and 4As shown, in the embodiment of the utility model, mounting grooves 220 are provided on the two opposing inner walls of the V-shaped groove 210, and the mounting grooves 220 extend from one end of the support block 200 to the other end, and a plug-in block 230 matching therewith is inserted in the mounting groove 220, wherein the mounting groove 220 has a trapezoidal structure, that is, the mounting groove 220 is in a shape that gradually widens downward from one end of the bottom of the V-shaped groove 210, and the corresponding plug-in block 230 has an inverted trapezoidal structure, that is, one end of the plug-in block 230 is in a structure that gradually narrows downward from bottom to top. By setting the mounting groove 220 in a trapezoidal structure, it can be ensured that the mounting block of the inverted trapezoidal structure can be firmly inserted and provide stable support. At the same time, the inverted trapezoidal shape makes it easier to install and disassemble the mounting block.

[0041] In the embodiment of the utility model, when in use, the plug-in block 230 contacts the neck of the crankshaft 500, so that the crankshaft 500 can be supported in the V-groove 210, and cooperates with the limit piece to prevent the crankshaft 500 from shaking or swinging during the processing, thereby ensuring stability and precision. At the same time, the contact between the plug-in block 230 and the crankshaft 500 can reduce the direct contact between the crankshaft 500 and the V-groove 210, reduce friction and wear, help to extend the service life of the crankshaft 500 and the V-groove 210, reduce maintenance costs, and facilitate replacement.

[0042] like Figure 1 As shown, in an embodiment of the utility model, the support frame 100 also includes a support base plate 130 and two support side plates 120 arranged on the support base plate 130, and the support inclined plate 110 is arranged on the inclined surfaces of the two support side plates 120. The support base plate 130 and the support side plates 120 can ensure the stability of the support inclined plate 110 and facilitate the movement of the tooling.

[0043] like Figure 1 As shown, in the embodiment of the utility model, U-shaped slots 131 are provided at opposite ends of the support base plate 130, and the support base plate 130 can be positioned and fixed on the workbench of the vertical drilling machine by fasteners through the U-shaped slots 131 for subsequent drilling processing.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A crankshaft inclined oil hole drilling tool, characterized in that: include: A support frame (100), the support frame (100) comprising a support inclined plate (110); Two support blocks (200) are vertically disposed on the support inclined plate (110) and spaced apart to support the crankshaft (500); A first limiting member (300) is provided on the supporting inclined plate (110) and is located between the two supporting blocks (200), and is used for limiting the axial direction of the crankshaft (500); The second limiting member (400) is arranged on the supporting inclined plate (110) and is spaced apart from the first limiting member (300), and is used for limiting the radial direction of the crankshaft (500).

2. A crankshaft oblique oil hole drilling tool as claimed in claim 1, characterized in that: The first limiting member (300) comprises a positioning rod (310) arranged on the supporting inclined plate (110), the upper part of the positioning rod (310) is provided with a threaded hole perpendicular to its axis, a locking bolt (320) is freely passed through the threaded hole, and the locking bolt (320) is threadedly connected with a locking nut (330).

3. A crankshaft oblique oil hole drilling tool as claimed in claim 1, characterized in that: The second limiting member (400) includes a first fixing rod (410) and a second fixing rod (420) which are spaced apart and a pressure plate (430); one end of the first fixing rod (410) is connected to the supporting inclined plate (110), and the other end is connected to the pressure plate (430); one end of the second fixing rod (420) is connected to the supporting inclined plate (110), and the other end is abutted against the pressure plate (430); one side of the pressure plate (430) has a pressure head (440).

4. A crankshaft oblique oil hole drilling tool as claimed in claim 3, characterized in that: The pressure plate (430) is provided with a through waist-shaped hole groove (431), and the end of the first fixing rod (410) away from the supporting inclined plate (110) is provided with a threaded rod (450), and the end of the threaded rod (450) away from the supporting inclined plate (110) passes through the waist-shaped hole groove (431) and is screwed with a clamping nut (460), and the clamping nut (460) can move back and forth along the axial direction of the threaded rod (450) so as to abut against or separate from the pressure plate (430).

5. A crankshaft oblique oil hole drilling tool as claimed in claim 4, characterized in that: The pressing plate (430) is provided with a slide groove (432), and the slide groove (432) extends from one end of the pressing plate (430) along its length direction. One end of the second fixing rod (420) that is away from the supporting inclined plate (110) abuts against the slide groove (432) and can slide along the extension direction of the slide groove (432).

6. A crankshaft oblique oil hole drilling tool as claimed in claim 1, characterized in that: A V-shaped groove (210) is provided in the middle of the upper ends of the two support blocks (200), and the upper ends of the V-shaped grooves (210) have openings.

7. A crankshaft oblique oil hole drilling tool as claimed in claim 6, characterized in that: Mounting grooves (220) are provided on two inner walls facing each other of the V-shaped groove (210), and the mounting groove (220) extends from one end of the support block (200) to the other end, and a plug-in block (230) matching with the mounting groove (220) is inserted into the mounting groove (220).

8. A crankshaft oblique oil hole drilling tool as claimed in claim 1, characterized in that: The support frame (100) further comprises a support bottom plate (130) and two support side plates (120) arranged on the support bottom plate (130), and the support inclined plate (110) is arranged on the inclined surfaces of the two support side plates (120).

9. A crankshaft oblique oil hole drilling tool as claimed in claim 8, characterized in that: The supporting bottom plate (130) is provided with U-shaped notches (131) at opposite ends thereof.