Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a special lathe for processing a crankshaft connecting rod neck, and a plurality of groups of limiting rollers are arranged, so that shaking of crankshaft raw materials is avoided, and the processing precision is improved.
The invention discloses a special lathe for machining a crankshaft connecting rod neck, which comprises a lathe body, wherein a chuck body is arranged on the lathe body, a first guide rail is arranged on the surface of the lathe body, a sliding seat is connected onto the first guide rail in a sliding manner, a rear center is arranged at the top of the sliding seat, a cutting assembly positioned above the chuck body is arranged on the lathe body, a support seat positioned between the chuck body and the sliding seat is connected onto the first guide rail in a sliding manner, a limiting roller is arranged on the support seat, the limiting roller is connected with the support seat through a driving mechanism, the limiting roller can be close to or far away from a crankshaft connecting rod through the driving mechanism, the driving mechanism comprises a driving motor, the driving motor is fixedly arranged on the support seat, a bidirectional screw rod is fixedly sleeved on an output shaft of the driving motor, square plates are sleeved on two sides of the outer surface of the bidirectional screw rod in a threaded manner, a guide rod is fixedly connected onto the square plates and is in sliding connection with the support seat, and the limiting roller is connected with the square plates through an adjusting mechanism.
Optionally, the cutting assembly includes the diaphragm, diaphragm fixed mounting is on the bed body, the bottom sliding connection of diaphragm has first electric putter, the cutter is installed to the flexible end of first electric putter.
Optionally, the adjustment mechanism includes the second guide rail, second guide rail fixed mounting is on the square board surface, sliding connection has the slider on the second guide rail, spacing gyro wheel rotates to be connected on the slider.
Optionally, a brake motor is fixedly installed on the square plate, a rotating shaft is fixedly sleeved on an output shaft of the brake motor, and the other end of the rotating shaft penetrates through the square plate and is fixedly connected with a rotating rod.
Optionally, both ends of the rotating rod are hinged with first connecting rods, and the other ends of the first connecting rods are hinged on the sliding blocks.
Optionally, a first baffle is hinged on the support, and the first baffle is connected with the guide rod through a push-pull assembly.
Optionally, the push-pull assembly comprises a folded plate fixedly connected to the guide rod, and a second connecting rod is hinged between the folded plate and the first baffle.
Optionally, a second baffle is slidably connected to the first baffle, and the height of the second baffle is the same as that of the first baffle.
Optionally, a second electric push rod is fixedly installed on the first baffle, and the telescopic end of the second electric push rod is fixedly connected to the second baffle.
Optionally, the bed body is fixedly provided with a scrap tray, and the bed body is provided with a blanking hole above the scrap tray.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the limiting roller, the driving motor, the bidirectional screw rod, the square plates and the guide rod are arranged, and the driving motor is started to enable the bidirectional screw rod to rotate, so that the two square plates can move in opposite directions under the guide of the guide rod, the limiting roller can move close to the crankshaft connecting rod raw material, the limiting roller is attached to the surface of a main journal formed by turning, as shown in fig. 7, the crankshaft connecting rod raw material can be limited, the integral shaking of the raw material caused by the centrifugal force generated by the rotation of the connecting rod neck is avoided, and the subsequent processing precision can be improved.
2. According to the invention, the brake motor, the rotary rod, the first connecting rod, the second guide rail and the sliding blocks are arranged, the rotary rod is driven to rotate by the rotary shaft through starting the brake motor, and the two sliding blocks are driven to move in opposite directions or in opposite directions along the surface of the second guide rail through the first connecting rod due to the rotation of the rotary rod, so that the distance between the two limiting rollers is adjusted, and therefore, for main journals with different diameters, workers can adjust the distance between the limiting rollers, and the limiting rollers can be uniformly distributed around the surface of the main journal when clamping the main journal, so that the limiting effect on the raw materials of a crankshaft is improved, and the applicability is improved.
3. According to the invention, the folded plate, the second connecting rod, the first baffle, the second baffle and the second electric push rod are arranged, when the square plate drives the guide rod and the limiting roller to move close to the crankshaft raw material, the guide rod drives the folded plate to move, so that the second connecting rod pushes the first baffle to rotate, the first baffle is enabled to be far away from the supports and rotate to be in an unfolding state, a gap between two adjacent supports can be shielded, the possibility of outward splashing of metal scraps generated by turning is reduced, when the distance between the two adjacent supports is large, when the gap is difficult to be shielded after the first baffle rotates and unfolds, a worker can start the second electric push rod to push the second baffle to move outwards, the second baffle and the first baffle jointly shield the metal scraps, and the influence of the outward splashing of the metal scraps on the surrounding processing environment is reduced.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
The structure of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, a special lathe for processing a crankshaft connecting rod neck provided by the embodiment of the invention comprises a lathe body 1, wherein a chuck body 2 is arranged on the lathe body 1, a first guide rail 3 is arranged on the surface of the lathe body 1, a sliding seat 4 is connected to the first guide rail 3 in a sliding manner, a rear center 5 is arranged on the top of the sliding seat 4, a cutting component positioned above the chuck body 2 is arranged on the lathe body 1, a support 9 positioned between the chuck body 2 and the sliding seat 4 is connected to the first guide rail 3 in a sliding manner, a limit roller 14 is arranged on the support 9, the limit roller 14 is connected with the support 9 through a driving mechanism, the limit roller 14 can be close to or far away from the crankshaft connecting rod through the driving mechanism, the driving mechanism comprises a driving motor 10, the driving motor 10 is fixedly arranged on the support 9, a bidirectional lead screw 11 is fixedly sleeved on an output shaft of the driving motor 10, square plates 12 are sleeved on two sides of the outer surface of the bidirectional lead screw 11 in a threaded manner, a guide rod 13 is fixedly connected to the square plate 12, the guide rod 13 is slidingly spliced on the support 9, the limit roller 14 is connected with the square plate 12 through an adjusting mechanism.
Through starting driving motor 10, can make two-way lead screw 11 rotate to can make two square plates 12 move in opposite directions, thereby can make spacing gyro wheel 14 be close to the motion of bent axle connecting rod raw materials, make spacing gyro wheel 14 laminating at the main journal surface that the turning formed, thereby can be spacing with bent axle connecting rod raw materials, avoid producing centrifugal force and causing the whole shake of raw materials because of the connecting rod neck rotates, thereby can promote follow-up machining precision.
Further, the cutting assembly comprises a transverse plate 7, the transverse plate 7 is fixedly arranged on the bed body 1, a first electric push rod 8 is connected to the bottom of the transverse plate 7 in a sliding mode, and a cutter is arranged at the telescopic end of the first electric push rod 8. When the crankshaft connecting rod is machined, after the crankshaft connecting rod is clamped and fixed by the chuck body 2, the first electric push rod 8 can slide on the transverse plate 7 to the position above the position where the crankshaft connecting rod needs to be turned, so that the first electric push rod 8 can push a cutter to the surface of the crankshaft connecting rod, and turning is carried out on the cutter when the crankshaft connecting rod rotates.
Further, the adjusting mechanism comprises a second guide rail 15, the second guide rail 15 is fixedly arranged on the surface of the square plate 12, a sliding block 16 is connected to the second guide rail 15 in a sliding manner, and the limiting roller 14 is connected to the sliding block 16 in a rotating manner. The distance between the two limit rollers 14 on the square plate 12 can be changed by adjusting the distance between the two sliding blocks 16 on the second guide rail 15, so that the square plate can adapt to crankshaft connecting rods with different processing diameters, and the applicability is improved.
Further, a brake motor 17 is fixedly mounted on the square plate 12, a rotating shaft 18 is fixedly sleeved on an output shaft of the brake motor 17, and the other end of the rotating shaft 18 penetrates through the square plate 12 and is fixedly connected with a rotating rod 19. By activating the brake motor 17, the rotary shaft 18 can be rotated, and the rotary lever 19 can be driven to rotate.
Further, both ends of the rotating rod 19 are hinged with a first connecting rod 20, and the other end of the first connecting rod 20 is hinged on the sliding block 16. Through the design of first connecting rod 20, when the dwang 19 rotates, can drive two sliders 16 through first connecting rod 20 and move in opposite directions or in opposite directions to automatically regulated the interval of two sliders 16, and then realized the automatically regulated of two spacing gyro wheels 14 interval, made things convenient for staff's operation processing, the change of two spacing gyro wheels 14 interval can adapt to the bent axle connecting rod of processing out different diameter sizes simultaneously.
Further, the support 9 is hinged with a first baffle plate 21, and the first baffle plate 21 is connected with the guide rod 13 through a push-pull assembly. When the first baffle 21 rotates to the unfolded state, the gap between the two supports 9 can be closed, so that metal scraps generated by turning can be shielded, and the possibility of outward splashing of the metal scraps is reduced.
Further, the push-pull assembly comprises a folded plate 24, the folded plate 24 is fixedly connected to the guide rod 13, and a second connecting rod 25 is hinged between the folded plate 24 and the first baffle 21. When the driving motor 10 is operated to enable the square plate 12 to drive the guide rod 13 and the limiting roller 14 to be close to the crankshaft connecting rod for clamping, the folded plate 24 moves along with the guide rod 13, so that the second connecting rod 25 can push the first baffle 21 to rotate, the first baffle 21 is enabled to be far away from the support 9 and rotate to be in an unfolding state, and then the first baffle 21 can shield metal scraps generated in subsequent processing.
Further, the first baffle 21 is slidably connected with a second baffle 22, and the height of the second baffle 22 is the same as that of the first baffle 21.
Further, a second electric push rod 23 is fixedly installed on the first baffle 21, and a telescopic end of the second electric push rod 23 is fixedly connected to the second baffle 22. When processing the crank connecting rod of longer size, when the distance between two supports 9 on same first guide rail 3 is great, if first baffle 21 rotates and still is difficult to shelter from the space between two supports 9 after expanding the state, the staff can start second electric push rod 23 to can promote second baffle 22 motion, make second baffle 22 shelter from the space between two supports 9 with first baffle 21 jointly, and then promoted the adaptability.
Further, the bed body 1 is fixedly provided with a scrap tray 6, and the bed body 1 is provided with a blanking hole above the scrap tray 6. Most of the metal scraps generated by turning the crankshaft connecting rod fall into the scrap tray 6 through the blanking hole, so that the workers can clean the scraps in a concentrated mode.
The working principle and the using flow of the invention are as follows:
Firstly, the staff is fixed the raw materials centre gripping for the bent axle processing in chuck body 2, adjust the position of sliding seat 4 simultaneously, use back top 5 butt at raw materials one end, further fixed it, then control the bed body 1 and make chuck body 2 drive the raw materials and rotate, adjust the position of first electric putter 8 on diaphragm 7 afterwards, make first electric putter 8 remove the raw materials and wait to process the position top, start first electric putter 8 and make first electric putter 8 promote the cutter and be close to the raw materials, carry out turning to the raw materials.
After processing some main journals and connecting rod necks, in order to avoid the raw materials shake that produces because of the connecting rod neck rotates and influence subsequent machining precision, the staff can at first through starting brake motor 17, because the operation of brake motor 17, can make pivot 18 drive the dwang 19 and rotate, because the rotation of dwang 19 will drive two sliders 16 along second guide rail 15 surface opposite directions or the motion of being away from each other through first connecting rod 20, thereby the interval of two spacing gyro wheels 14 has been adjusted, the staff can adjust spacing gyro wheel 14's interval according to the diameter of main journal, then move support 9 to the position that corresponds with the main journal, then start driving motor 10, because driving motor 10's operation, can make two-way lead screw 11 rotate, because the screw thread connection between two-way lead screw 11 and the square plate 12 and the screw direction of two-way lead screw 11 surface both sides is opposite, therefore the rotation of two square plate 12 is at 13 guide arm in opposite directions, thereby can make spacing gyro wheel 14 be close to the motion of bent axle connecting rod raw materials, thereby spacing gyro wheel 14 laminating is seven surfaces that form, as shown in the figure, thereby can be according to the diameter adjustment spacing gyro wheel 14, and can make the whole and can produce the centre gripping effect to the main journal at the distance of rotation when the main journal, the distance is continued to the distance of the main journal, can be rotated, the distance can be carried out to the whole and can be rotated to the main journal because the distance evenly to the distance is adjusted to the raw materials is adjusted, and can be rotated to the raw materials to the main spindle diameter has been processed, and can be guaranteed, and can be rotated and has the whole and has been processed and has good overall distance vibration precision to the required to the precision to the surface and has good to the precision to the required to the main spindle, and has high.
Meanwhile, when the driving motor 10 operates, the square plate 12 drives the guide rod 13 and the limiting roller 14 to move close to the crankshaft raw material, the guide rod 13 can drive the folded plate 24 to move, so that the second connecting rod 25 pushes the first baffle plate 21 to rotate, the first baffle plate 21 is far away from the support 9 and rotates to be in an unfolding state, the gap between two adjacent support seats 9 can be closed and shielded, the possibility of outward splashing of metal scraps produced by subsequent turning is reduced, when the gap between the two adjacent support seats 9 is large, when the first baffle plate 21 rotates and is difficult to shield the gap after being unfolded, a worker can start the second electric push rod 23, the second baffle plate 22 is pushed to move outwards, the second baffle plate 22 and the first baffle plate 21 jointly shield the metal scraps, the peripheral processing environment is reduced, most of the metal scraps produced by turning can drop downwards to the inside of the scrap disk 6, and the subsequent worker is convenient to process in a concentrated manner.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.