CN205237612U

CN205237612U - Crankshaft drilling fixture

Info

Publication number: CN205237612U
Application number: CN201521082858.3U
Authority: CN
Inventors: 赵文兴
Original assignee: Zhejiang Jinlan Auto Part Co Ltd
Current assignee: Zhejiang Jinlan Auto Part Co Ltd
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2016-05-18
Anticipated expiration: 2025-12-22

Abstract

The utility model discloses a crankshaft drilling fixture has solved prior art and has held up the work piece through artificial mode and make the work piece keep horizontal state, and it is troublesome that the comparison is got up in the operation, and expends the problem of manpower, and its technical scheme main points are crankshaft drilling fixture, the large -scale motor assembly jig comprises an operation bench, be provided with the clamping device and drive clamping device pivoted driving piece that press from both sides tight back rachis on the operation panel, be provided with the supporting part that supports the preceding rachis of bent axle on the operation panel, the supporting part rotates with preceding rachis to be connected, be provided with on the operation panel with the butt spare of bent axle bottom butt and drive butt spare and bent axle bottom butt and the drive division that breaks away from the butt, put up the both ends of bent axle, make the bent axle keep the state of level, the convenient dismantlement and the installation.

Description

Crank shaft drilling clamp

Technical field

The utility model relates to a kind of Crankshaft Machining equipment, and more particularly, it relates to a kind of crank shaft drilling clamp.

Background technology

Along with engine is towards diesel oil, the future development of high-power, as the heart of engine, the more and more large-scale change of kind of bent axle, heavy-duty, and required precision is also more and more higher, bent axle is the axial workpiece with two stomidium location, generally by front end axle, rod journal, crankshaft journal, crank, balance weight, the part such as rear end axle composition, it bears the power that connecting rod transmits, and changed into torque and exported and drive other annex work on engine by bent axle, Crankshaft Machining extensively adopts numerically controlled lathe, milling machine in numerical control, the sophisticated equipments such as numerical control lathe broaching machine are to trunnion, rod journal carries out numerical control turning, interior milling, car-broaching processing, effectively to reduce the deflection of Crankshaft Machining, for reducing the centrifugal force that bent axle quality and when motion produce, crankshaft journal is often as hollow, in each journal surface, have oilhole, to machine oil is introduced or is drawn, in order to lubricated journal surface.

At present, crankshaft flange end face all needs auger shell hole and dowel hole, conventionally regulation subdrilling dowel hole, auger shell hole bottom outlet again, then attack screw with screw tap, complete these processing, need on drilling machine, join a set of boring grab, most of boring grabs adopt that workpiece is fixed, the mode of bit is carried out boring work more, exist the not high problem of precision of position, hole, meanwhile, in order to increase work efficiency, can be by overlapping several workpiece boring simultaneously together, this also exists the problem of workpiece hole position concentricity deficiency.

In order to address the above problem, be in one section of Chinese patent document of " 201320074337.8 " at number of patent application, record a kind of drilling tool, comprise operating desk, motor, rotating disc one, Workpiece clamping device, clamp, fastener hole, buffer solution pipe, drill bit adjusting device, drill bit fixed block, drill bit and rotating disc two, when drilling tool work, Workpiece clamping device is set to rotatable, drill bit is non-rotatable, motor, rotating disc one is arranged on operating desk, motor can regulate its position, left and right on operating desk by rotating disc one, clamp, fastener hole is evenly arranged on Workpiece clamping device, by regulating fastener hole, can expand or shrink the scope of clamp, adapt to the workpiece of different sizes, can regulate the position of drill bit by rotating disc two, in the time of boring work, Workpiece clamping device rotation, motor does not rotate, precision and the concentricity of workpiece hole position are not only improved, also improve the operating efficiency of boring.

But, the weak point of this drilling tool is in the time dismantling or relatively large workpiece is installed, the state of clamp in unclamping, one end of workpiece is in clamping device, the other end you outside clamping device, workpiece is because of self gravitation effect, the one end being positioned at outside clamping device can hang downwards automatically, when clamp unclamps, easily cause producing and wearing and tearing between workpiece and clamp, conventionally people hold up workpiece by artificial mode and make workpiece maintenance level, operate cumbersome, and labor intensive.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of two ends of supporting bent axle, makes the state of bent axle maintenance level, for convenience detach and be installed to the crank shaft drilling clamp on clamping device.

For achieving the above object, the utility model provides following technical scheme: a kind of crank shaft drilling clamp, comprise operating desk, on described operating desk, be provided with and clamp the clamping device of rear end axle and the actuator that drives clamping device to rotate, it is characterized in that: on described operating desk, be provided with the support portion of supporting crankshaft front end axle, described support portion and front end axle are rotationally connected, and are provided with fitting and driving fitting and bent axle bottom butt and the drive division that departs from butt with bent axle bottom butt on described operating desk.

By adopting technique scheme, fitting is butt piece, the bottom butt of the upper surface of butt piece and bent axle, in the time that bent axle is dismantled and is installed on this fixture, support bent axle by support portion and butt piece, make the state of bent axle maintenance level, facilitate bent axle to disassemble or be installed on clamping device from clamping device.

Further, be provided with the guide rail for fitting slippage on described operating desk, described guide rail edge is perpendicular to extending in crankshaft center line direction.

By adopting technique scheme, guide rail, along perpendicular to extending to form in crankshaft center line direction, is fixed on operating desk surface, the slippage on guide rail of butt piece, and guide rail plays the effect of guiding to butt piece.

Further, described drive division is cylinder, and the piston rod of described cylinder is fixedly connected with fitting, described air cylinder driven fitting on guide rail near and away from slippage in the direction of bent axle bottom.

By adopting technique scheme, the piston rod of cylinder drives the slippage on guide rail of butt piece, butt piece by air cylinder driven slippage to bent axle bottom and connect with the bottomland of bent axle, after installation or dismounting have been moved, the slippage on guide rail of air cylinder driven butt piece, the bottom of butt piece and bent axle departs from butt, thereby does not affect the boring of bent axle.

Further, described clamping device comprises the placement section of horizontal positioned rear end axle, described placement section is recessed to form downwards, the surface laminating of described placement section and rear end axle, on described placement section, be provided with rear end axle is fixed on to the fixture in placement section, one end and the placement section of described fixture are rotationally connected, and the other end of described fixture is detachably fixedly connected with placement section.

By adopting technique scheme, placement section is used for preventing rear end axle, placement section is recessed to form downwards, rear end axle is placed in placement section, the surface of placement section and rear end axle fits, and by fixture, rear end axle is fixed in placement section to fixture and rear end axle butt, in the process of rotating at clamping device, avoid bent axle self to rotate.

Further, one end and the placement section of described fixture are hinged, and the other end of described fixture is threaded with placement section.

By adopting technique scheme, one end and the placement section of determining part are rotationally connected, the other end of fixture is detachably fixedly connected with placement section, in the present embodiment, one end and the placement section of fixture are hinged, the other end is threaded with placement section, on fixture, be provided with through hole, bolt is threaded with the screwed hole on placement section through after through hole, by the threaded engagement of bolt and screwed hole, realize being detachably fixedly connected with of fixture and placement section, demounting bolt, rotational fixture, facilitate bent axle to take out from clamping device, tight a bolt, can be by fixing between fixture and placement section, thereby bent axle is wherein fixedly clamped.

Further, on described fixture, be provided with the clamp that clamps rear end axle.

By adopting technique scheme, on fixture, be provided with clamp, live rear end axle by clamp butt, on clamping device, rear end axle is maintained static rear end axle clamp, strengthen rear end axle and be fixed on the fastness in placement section.

Further, on described fixture, point on the axle axis direction of rear end and be provided with pin-and-hole, described pin-and-hole and clamp interference fit, described clamp through after pin-and-hole with rear end axle butt.

By adopting technique scheme, on fixture, be provided with the clamp that clamps rear end axle, fixture is provided with a pin-and-hole on the axle axis direction of sensing rear end, pin-and-hole and clamp interference fit, clamp is arranged on fixture by pin-and-hole, and between fixture and bent axle, clamp through after pin-and-hole with the surperficial butt of rear end axle, unclamp bolt, fixture is rotated, placement section is opened, bent axle can be taken out from clamping device, tight a bolt, live the rear end axle of bent axle by the clamp butt on fixture, rear end axle and clamping device are fixed up, avoid bent axle in boring procedure to rotate, improve the crudy of bent axle.

Brief description of the drawings

Fig. 1 is the structural representation one of crank shaft drilling clamp;

Fig. 2 is the structural representation two of crank shaft drilling clamp;

Fig. 3 is the structural representation three of crank shaft drilling clamp.

In figure: 1, operating desk; 2, cylinder; 3, butt piece; 4, guide rail; 5, drive motors; 6, clamping device; 61, placement section; 62, fixture; 63, clamp; 64, bolt; 72, rear end axle; 71, front end axle; 7, bent axle; 8, drill bit; 9, support portion.

Detailed description of the invention

Referring to figs. 1 through Fig. 3, the embodiment of crank shaft drilling clamp is described further.

As shown in figures 1 and 3, a kind of crank shaft drilling clamp, comprise operating desk 1, on operating desk 1, be provided with and clamp the clamping device 6 of rear end axle 72 on bent axle 7 and the actuator that drives clamping device 6 to rotate, actuator is drive motors 5, rotating shaft on drive motors 5 is fixedly connected with clamping device 6, drive clamping device 6 to rotate by motor, thereby drive axle 72 axis around rear end axle 72 in rear end to rotate, on operating desk 1, be provided with the support portion 9 of supporting front end axle 71, front end axle 71 on bent axle 7 is placed on support portion 9, front end axle 71 can rotate by the axis around front end axle 71 on support portion 9, on operating desk 1, be also provided with and the fitting of bent axle 7 bottom butts and the drive division of driving fitting and bent axle 7 bottom butts or disengaging butt, in the present embodiment, fitting is butt piece 3, the bottom butt of the upper surface of butt piece 3 and bent axle 7, in the time that bent axle 7 is dismantled and is installed on this fixture, support bent axle 7 by support portion 9 and butt piece 3, make the state of bent axle 7 maintenance levels, facilitate bent axle 7 to disassemble or be installed on clamping device 6 from clamping device 6.

As shown in Figure 1, on operating desk 1, be provided with the guide rail 4 being connected with 3 slippages of butt piece, guide rail 4 is along extending to form on the axis direction perpendicular to bent axle 7, butt piece 3 slippage on guide rail 4, drive division is cylinder 2, the piston rod of cylinder 2 is fixedly connected with butt piece 3, cylinder 2 drive butt piece 3 on guide rail 4 near or away from bent axle 7 bottom slippages, the piston rod of cylinder 2 extends, butt piece 3 is to the bottom slippage of bent axle 7, make the bottom of butt piece 3 slippages to bent axle 7, by lifting rope, bent axle 7 is slowly placed on support portion 9 and butt piece 3, the bottom butt of butt piece 3 and bent axle 7, support portion 9 and butt piece 3 play the effect of supporting bent axle 7 jointly, make the state of bent axle 7 maintenance levels, by clamping device 6, the rear end axle 72 on bent axle 7 is clamped again, support fixed crankshaft 7 by support portion 9 and clamping device 6, now, the piston rod of cylinder 2 shrinks, butt piece 3 is from the outside slippage in bottom of bent axle 7, depart from butt with the bottom of bent axle 7, avoid butt piece 3 to impact the rotation of bent axle 7.

As depicted in figs. 1 and 2, clamping device 6 comprises the placement section 61 for rear end axle 72 horizontal positioned, placement section 61 is recessed to form downwards, placement section 61 fits with the surface of rear end axle 72, rear end axle 72 is placed in placement section 61, limit the movement in rear end axle 72 horizontal directions by placement section 61, on placement section 61, be provided with rear end axle 72 is fixed on to the fixture 62 in placement section 61, fixture 62 be shaped as semi-circular, one end of fixture 62 and placement section 61 are rotationally connected, the other end of fixture 62 is detachably fixedly connected with placement section 61, in the present embodiment, one end of fixture 62 and placement section 61 are hinged, the other end is threaded with placement section 61, on fixture 62, be provided with through hole, bolt 64 is threaded with the screwed hole on placement section 61 through after through hole, by the threaded engagement of bolt 64 and screwed hole, realize being detachably fixedly connected with of fixture 62 and placement section 61, on fixture 62, be provided with the clamp 63 that clamps rear end axle 72, fixture 62 is provided with a pin-and-hole on axle 72 axis directions of sensing rear end, pin-and-hole and clamp 63 interference fit, clamp 63 is arranged on fixture 62 by pin-and-hole, and between fixture 62 and bent axle 7, clamp 63 through after pin-and-hole with the surperficial butt of rear end axle 72, unclamp bolt 64, fixture 62 is rotated, placement section 61 is opened, bent axle 7 can be taken out from clamping device 6, tight a bolt 64, live the rear end axle 72 of bent axle 7 by clamp 63 butts on fixture 62, rear end axle 72 and clamping device 6 are fixed up, avoid bent axle 7 in boring procedure to rotate, improve the crudy of bent axle 7.

The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model. It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a crank shaft drilling clamp, comprise operating desk, on described operating desk, be provided with and clamp the clamping device of rear end axle and the actuator that drives clamping device to rotate, it is characterized in that: on described operating desk, be provided with the support portion of supporting crankshaft front end axle, described support portion and front end axle are rotationally connected, and are provided with fitting and driving fitting and bent axle bottom butt and the drive division that departs from butt with bent axle bottom butt on described operating desk.

2. crank shaft drilling clamp according to claim 1, is characterized in that: on described operating desk, be provided with the guide rail for fitting slippage, described guide rail edge is perpendicular to extending in crankshaft center line direction.

3. crank shaft drilling clamp according to claim 2, is characterized in that: described drive division is cylinder, and the piston rod of described cylinder is fixedly connected with fitting, described air cylinder driven fitting on guide rail near and away from slippage in the direction of bent axle bottom.

4. crank shaft drilling clamp according to claim 1, it is characterized in that: described clamping device comprises the placement section of horizontal positioned rear end axle, described placement section is recessed to form downwards, the surface laminating of described placement section and rear end axle, on described placement section, be provided with rear end axle is fixed on to the fixture in placement section, one end and the placement section of described fixture are rotationally connected, and the other end of described fixture is detachably fixedly connected with placement section.

5. crank shaft drilling clamp according to claim 4, is characterized in that: one end and the placement section of described fixture are hinged, and the other end of described fixture is threaded with placement section.

6. crank shaft drilling clamp according to claim 5, is characterized in that: on described fixture, be provided with the clamp that clamps rear end axle.

7. crank shaft drilling clamp according to claim 6, is characterized in that: described fixture is provided with pin-and-hole pointing on rear end axle axis direction, described pin-and-hole and clamp interference fit, and described clamp passes after pin-and-hole and rear end axle butt.