CN218312220U

CN218312220U - Novel power transmission mechanism

Info

Publication number: CN218312220U
Application number: CN202222803181.4U
Authority: CN
Inventors: 曾秋生
Original assignee: Quanzhou Gemei Machinery Equipment Co ltd
Current assignee: Quanzhou Gemei Machinery Equipment Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-01-17
Anticipated expiration: 2032-10-24

Abstract

The utility model relates to a machine tool technical field, the utility model provides a novel power transmission mechanism, including the lead screw, screw-nut, the transmission shaft, sleeve and power unit, the lead screw can supply the transmission shaft to pass for the cavity passageway of hollow lead screw and lead screw, lead screw one end external diameter is equipped with the mounting groove of connecting the power unit output, the power unit output is connected with the one end that the lead screw set up the mounting groove and drives the lead screw rotatory, screw-nut rotationally overlaps to locate on the lead screw and transversely comes and goes on the lead screw by the rotatory screw-nut that drives of lead screw, the transmission shaft rotationally wears to locate in the cavity passageway of lead screw and the lead screw both ends are outstanding respectively at the transmission shaft both ends, sleeve rear end cover is located on the lead screw and sleeve rear end and screw-nut fixed connection, sleeve front end warp bearing rotationally overlaps locates the transmission shaft front portion and the anterior joint of sleeve front end and transmission shaft. The utility model provides a poor problem of current power transmission mechanism transmission axiality.

Description

Novel power transmission mechanism

Technical Field

The utility model relates to a machine tool technical field of processes such as tooth is attacked in drilling especially relates to a novel power transmission mechanism.

Background

As two common machining processes in machining, drilling machining and tapping machining are very common in the machining process; wherein, drilling processing is mainly realized by a drilling machine, and tapping processing is mainly realized by a tapping machine. In the process of machining the internal threaded hole, drilling is required firstly, and then tapping is required; in the prior art, the machining of an internal thread hole is generally completed by two drilling machines and a tapping machine which are independent of each other, so that the working efficiency and the machining precision are low. In order to overcome the defects of the processing mode, the drilling and tapping all-in-one machine is developed at the same time, namely, the drilling and processing all-in-one machine can complete the processing of the internal thread hole by one machine, and the drilling and tapping all-in-one machine is high in working efficiency and processing precision. The drilling and processing integrated machine is generally provided with a hydraulic drilling and tapping power head, and the technical defects of the drilling and processing integrated machine are mainly reflected in the following aspects: 1. in the aspect of operation, a common drilling and tapping power head is of a split structure, when a workpiece is machined, two working procedures of drilling and tapping are required, the use is inconvenient, the labor intensity is high, and particularly for common operators, other technical problems such as installation and debugging of equipment can be caused in the use process. 2. In the aspect of machining precision, the machining precision of a common drilling and tapping power head is controlled manually and limited mechanically, certain deviation exists in the machining precision, and the machining accuracy is guaranteed mainly by means of the operation experience of technical workers. 3. The clearance of the cutter holder fixing seat on the power head is unchanged, processing chips are not easy to clear away when being accumulated on the cutter holder fixing seat, the maintenance is unchanged, the chips drop on the cutter holder fixing seat when the installation cutter is replaced, and the processing precision can be influenced after the installation cutter. With the increased competition in recent years and the higher and higher requirements for mass and streamlined operation, the requirements for a common drilling power head are continuously increased, the equipment cost is reduced, the operation process is simplified, and the expansion of the application range becomes a development trend. Therefore, the new power transmission mechanism is suitable for being transported, as shown in Chinese patent documents: CN201721389779.6 discloses a novel power transmission mechanism, including the casing, locate rotary main shaft, main shaft sleeve, cutter holder fixing base, main shaft power unit, main shaft axial transmission mechanism and CNC controller on the casing, still include air blowing mechanism, connecting piece and drive unit, the through-hole has been seted up along axial direction to rotary main shaft, the drive unit output is connected with the one end of connecting piece, the through-hole that the connecting piece other end was worn to locate rotary main shaft center is connected with the clamp handle of cutter holder fixing base, the seat body center of cutter holder fixing base has been seted up and has been linked to its centre gripping cutter's the through-hole of giving vent to anger, air blowing mechanism's gas blow pipe is worn to locate rotary main shaft's through-hole and is linked together with the venthole on the seat body of cutter holder fixing base and is used for clearing up the cutter holder fixing base. The utility model discloses a solved the inconvenient problem of current power transmission mechanism change cutter, but its rotation and feed transmission structure occupation space are great, and it feeds and adopts the lateral part to connect and cause easily after coming and going promotion formula live time to feed the axle center skew, and power transmission mechanism's transmission axiality is poor promptly, causes the machining precision to descend.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a convenient to use, commonality are strong, occupation space is less, the accurate novel power transmission mechanism of transmission.

In order to solve the technical problem, the utility model discloses take following scheme: the utility model provides a novel power transmission mechanism, includes lead screw, screw-nut, transmission shaft, sleeve and power unit, the cavity passageway that the lead screw is hollow lead screw and lead screw can supply the transmission shaft to pass, lead screw one end external diameter is equipped with the mounting groove of connecting the power unit output, the power unit output is connected with the one end that the lead screw set up the mounting groove and drives the lead screw rotatory, screw-nut rotationally overlaps and transversely comes and goes on locating the lead screw and drive screw-nut by the lead screw rotation on locating the lead screw, the transmission shaft rotationally wears to locate in the cavity passageway of lead screw and the outstanding lead screw both ends respectively in transmission shaft both ends, sleeve rear end cover is located on the lead screw and sleeve rear end and screw-nut fixed connection, the anterior and sleeve front end of transmission shaft and the anterior joint of transmission shaft are located to sleeve front end warp beam bearing rotationally.

The improved structure further comprises a transmission shaft power mechanism, wherein the output end of the transmission shaft power mechanism and the rear end of the transmission shaft are connected with a movable transmission shaft to rotate.

In a further improvement, the transmission shaft power mechanism comprises a first servo motor, a first synchronizing wheel, a second synchronizing wheel and a first synchronizing belt, an output shaft of the first servo motor is connected with the first synchronizing wheel, the second synchronizing wheel is sleeved on the rear end of the transmission shaft, and the first synchronizing belt is sleeved on the first synchronizing wheel and the second synchronizing wheel.

In a further improvement, the power mechanism comprises a second servo motor, a third synchronous wheel, a fourth synchronous wheel and a second synchronous belt, an output shaft of the second servo motor is connected with the third synchronous wheel, the fourth synchronous wheel is sleeved on the mounting groove at the rear end of the screw rod, and the second synchronous belt is sleeved on the third synchronous wheel and the fourth synchronous wheel.

By adopting the technical scheme, the beneficial effects of the utility model are that: through inciting somebody to action the utility model discloses a power transmission mechanism installs on board casing, design in the cavity passageway of lead screw is worn to locate by the transmission shaft, and power unit drives the lead screw and rotates the stable axial that realizes screw-nut and feed, and then drive the stable coaxial feeding of transmission shaft by screw-nut cooperation sleeve, make transmission shaft and lead screw keep feeding with the axle center, do not have the lateral part to connect and cause the skew problem that causes the machining precision to descend of feeding axle center easily after coming and going promotion formula live time, effective guarantee and increase machining precision, only need during the use with cutter etc. need rotatory driven part install in the transmission shaft front end can, need not artifical debugging, high durability, therefore, the clothes hanger is convenient to use, high versatility, the overall structure is greatly simplified, occupation space is less, good transmission effect, high durability, and reasonable design. Through further setting, be about to power unit and transmission shaft power unit all locate the lead screw below or lead screw top in step and can further reduce holistic occupation space, can extensively popularize and apply.

Drawings

FIG. 1 is a schematic cross-sectional structural view of an embodiment of the present invention;

fig. 2 is a schematic structural view of a screw rod and a screw nut according to an embodiment of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 and 2, a preferred novel power transmission mechanism of the present invention comprises a screw rod 1, a screw nut 2, a transmission shaft 3, a sleeve 4, a power mechanism and a transmission shaft power mechanism, wherein the screw rod 1 is a hollow screw rod, the hollow channel of the screw rod 1 can be passed by the transmission shaft 3, the screw rod 1 is rotatably disposed on a housing 7 of a pre-installed application machine platform, an outer diameter of one end of the screw rod 1 is provided with a mounting groove 11 for connecting an output end of the power mechanism, the screw nut 2 is rotatably sleeved on the screw rod 1 and is rotated by the screw rod 1 to drive the screw nut 2 to transversely reciprocate on the screw rod 1, the transmission shaft 3 is rotatably disposed in the hollow channel of the screw rod 1, two ends of the transmission shaft 3 respectively protrude from two ends of the screw rod 1, the transmission shaft power mechanism comprises a first servo motor 61, a first synchronizing wheel 62, a second synchronizing wheel 63 and a first synchronizing belt 64, the first servo motor 61 is arranged on the shell 7 and positioned below the screw rod 1, an output shaft of the first servo motor 61 is connected with the first synchronous wheel 62, the second synchronous wheel 63 is sleeved on the rear end of the transmission shaft 3, the first synchronous belt 64 is sleeved on the first synchronous wheel 62 and the second synchronous wheel 63, the rear end of the sleeve 4 is sleeved on the screw rod 1, the rear end of the sleeve 4 is fixedly connected with the screw nut 2, the front end of the sleeve 4 is rotatably sleeved on the front part of the transmission shaft 3 through a bearing 8, the front end of the sleeve 4 is clamped with the front part of the transmission shaft 3, the power mechanism comprises a second servo motor 51, a third synchronous wheel 52, a fourth synchronous wheel 53 and a second synchronous belt 54, the second servo motor 51 is arranged on the shell 7 and positioned below the screw rod 1, an output shaft of the second servo motor 51 is connected with the third synchronous wheel 52, and the fourth synchronous wheel 53 is sleeved on a mounting groove 11 at the rear end of the screw rod 1, the second timing belt 54 is sleeved on the third timing wheel 52 and the fourth timing wheel 53.

When the feeding mechanism is used, only parts needing rotary transmission, such as a cutter and the like, are arranged at the front end of the transmission shaft 3, the transmission shaft power mechanism drives the transmission shaft to rotate, the power mechanism drives the screw rod to rotate to push the screw rod nut to feed back and forth, further, the sleeve and the transmission shaft are driven to synchronously rotate with the rotation axis of the transmission shaft to realize coaxial feeding, and the coaxial non-offset stable feeding of the rotation axis is realized.

The utility model discloses well transmission shaft can adopt the straight axis and also can adopt the straight axis front end to set up tools such as other rotatory cutters, drill bits that feed that need of connecting piece erection joint at the connecting piece of the front end of straight axis setting mountable knife rest fixing base, and power unit and transmission shaft power unit do all locate on the casing and lie in the lead screw top, set up with the holistic occupation space of the same side of being convenient for reduce.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a novel power transmission mechanism, includes lead screw, screw-nut, transmission shaft, sleeve and power unit, its characterized in that: the lead screw can supply the transmission shaft to pass for the cavity passageway of hollow lead screw and lead screw, lead screw one end external diameter is equipped with the mounting groove of connecting the power unit output, the power unit output sets up the one end of mounting groove with the lead screw and is connected and drive the lead screw rotatory, screw-nut rotationally overlaps to be located on the lead screw and transversely reciprocates on the lead screw by the rotatory screw-nut that drives of lead screw, the transmission shaft rotationally wears to locate in the cavity passageway of lead screw and the lead screw both ends of transmission shaft are outstanding respectively, sleeve rear end cover is located on the lead screw and sleeve rear end and screw-nut fixed connection, sleeve front end warp bearing rotationally overlaps locates the anterior and sleeve front end of transmission shaft and the anterior joint of transmission shaft.

2. The novel power transmission mechanism of claim 1, wherein: the transmission mechanism is characterized by further comprising a transmission shaft power mechanism, and the output end of the transmission shaft power mechanism is connected with the rear end of the transmission shaft to drive the transmission shaft to rotate.

3. The novel power transmission mechanism of claim 2, wherein: the transmission shaft power mechanism comprises a first servo motor, a first synchronizing wheel, a second synchronizing wheel and a first synchronizing belt, wherein an output shaft of the first servo motor is connected with the first synchronizing wheel, the second synchronizing wheel is sleeved on the rear end of the transmission shaft, and the first synchronizing belt is sleeved on the first synchronizing wheel and the second synchronizing wheel.

4. The novel power transmission mechanism of claim 1, wherein: the power mechanism comprises a second servo motor, a third synchronous wheel, a fourth synchronous wheel and a second synchronous belt, an output shaft of the second servo motor is connected with the third synchronous wheel, the fourth synchronous wheel is sleeved on the mounting groove at the rear end of the screw rod, and the second synchronous belt is sleeved on the third synchronous wheel and the fourth synchronous wheel.