CN212793429U - Non-rotating thread machining mechanism for small-size pipe body - Google Patents

Abstract

The utility model relates to a non-rotating thread processing mechanism for small-sized pipe bodies, which comprises a toothed belt wheel, a driving shaft, a pull rod, a connecting disc and a facing head shell, wherein the facing head shell is fixedly connected with the connecting disc; a screw rod is arranged in the driving shaft in a penetrating manner; the screw rod is sleeved with a nut, and the nut is fixedly connected with the driving shaft; the front end of the lead screw is provided with a bearing; the bearing is provided with a flange plate, the rear end of the pull rod is sleeved on the bearing, and the pull rod is fixedly connected with the flange plate; two gears are arranged in the facing head shell, and two sliding seats are arranged at the front end of the facing head shell; the front end of the pull rod is arranged in the facing head shell, a rack shaft is fixedly connected to the front end of the pull rod, the upper part and the lower part of the rack shaft are respectively meshed with two gears, and racks are arranged at the rear ends of the two sliding seats; the two gears are respectively meshed with racks at the rear ends of the two sliding seats. The processing mechanism is suitable for high rotating speed, reduces the power consumed by the main motor and improves the processing efficiency.

Description

Non-rotating thread machining mechanism for small-size pipe body

Technical Field

The utility model belongs to the technical field of the machine tool equipment and specifically relates to a thread machining mechanism that is used for irrotational of small dimension body.

Background

The processing of pipe thread is an important component of the mechanical industry, the processing ability of small-size pipe body directly influences the development of the mechanical industry, and a good processing mechanism can not only improve the processing efficiency, but also reduce the labor intensity.

At small dimension body processing, because quantity is great relatively, traditional processing agency goes up unloading, dress card and wastes time and energy, influences machining efficiency, and thread machining mechanism has the restriction to part length simultaneously, and the machining precision can not reach the requirement, influences pipe thread product quality.

Disclosure of Invention

In order to compensate the deficiency of the prior art, the utility model provides a thread machining mechanism for small dimension body is irrotational is suitable for high rotational speed, has reduced the power that main motor consumed, has improved machining efficiency.

The utility model aims at realizing the thread processing mechanism which is used for the irrotational small-sized pipe body and comprises a toothed belt wheel, a driving shaft, a pull rod, a connecting disc and a facing head shell, wherein the facing head shell is fixedly connected with the connecting disc; the technical key points are as follows:

a screw rod is arranged in the driving shaft in a penetrating manner; the screw rod is sleeved with a nut, and the nut is fixedly connected with the driving shaft; the front end of the lead screw is provided with a bearing; the bearing is provided with a flange plate, the rear end of the pull rod is sleeved on the bearing, and the pull rod is fixedly connected with the flange plate;

two gears are arranged in the facing head shell, and two sliding seats are arranged at the front end of the facing head shell; the front end of the pull rod is arranged in the facing head shell, a rack shaft is fixedly connected to the front end of the pull rod, the upper part and the lower part of the rack shaft are respectively meshed with two gears, and racks are arranged at the rear ends of the two sliding seats; the two gears are respectively meshed with racks at the rear ends of the two sliding seats.

Furthermore, the pull rod is connected with the flange plate through threads.

The utility model has the advantages that:

1. the machining mode of the mechanism is that a workpiece does not rotate, and the main shaft drives the numerical control facing head to drive the cutter to rotate so as to realize continuous machining. Compared with other mechanisms, the mechanism has the advantages that: the main shaft bearing is small and is suitable for high rotating speed; the processed workpiece does not rotate along with the main shaft, the power consumed by the main motor is small, and the noise is low in the processing process; the two cutters can participate in cutting at the same time, so that the machining efficiency is high; because the pipe body does not rotate, so this thread machining mechanism does not do the restriction to part length.

2. The machine tool has higher flexibility, reliable performance and high processing precision, and can machine metric system threads, imperial system threads, straight threads, tapered threads, multi-start threads and the like. The method is suitable for medium-batch production in small-diameter pipe processing in the pipe thread processing industry.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial view of the present invention (driving shaft, lead screw, etc.);

fig. 3 is a partial view of the present invention (pull rod, facing head housing, etc.).

In fig. 1 to 3, specific names of the respective structures are: the gear type wheel comprises a toothed belt wheel 1, a screw 2, a pull rod 3, a rack shaft 4, a connecting disc 5, a gear I6, a rack I7, a sliding seat I8, a sliding seat II 9, a rack II 10, a facing head shell 11, a gear II 12, a main shaft 13, a bearing 14, a flange plate 14-1, a driving shaft 15 and a lead screw 16.

Detailed Description

Referring to fig. 1-3, the specific structure of this embodiment is: a thread machining mechanism for non-rotation of a small-size pipe body comprises a toothed belt wheel 1, a driving shaft 15, a bearing 14, a pull rod 3, a connecting disc 5 and a facing head shell 11, wherein the facing head shell 11 is fixedly connected with the connecting disc 5;

the driving shaft 15 is provided with a lead screw 16 in a penetrating way; the screw 16 is sleeved with a nut 2, and the nut 2 is fixedly connected with the driving shaft 15; the front end of the lead screw 16 is provided with a bearing 14; the bearing 14 is provided with a flange 14-1, the rear end of the pull rod 3 is sleeved on the bearing 14, the bearing 14 is connected with the pull rod 3 in a matching way, and the pull rod 3 is connected with the flange 14-1 by threads;

a gear I6 and a gear II 12 are arranged inside the facing head shell 11, and a sliding seat I8 and a sliding seat II 9 are arranged at the front end of the facing head shell 11; the front end of the pull rod 3 is arranged in the facing head shell 11, a rack shaft 4 is fixedly connected to the front end of the pull rod 3, the rack shaft 4 is vertically meshed with a gear I6 and a gear II 12 respectively, and racks I7 and II 10 are arranged at the rear ends of the sliding seat I8 and the sliding seat II 9 respectively; the gear I6 and the gear II 12 are meshed with the rack I7 and the rack II 10 respectively.

The utility model discloses a theory of operation:

motors adopted by a common pipe body processing machine tool comprise an X-axis motor, a Z-axis motor and a main shaft motor, wherein the main shaft motor drives a main shaft 13 to rotate; the facing head shell 11 is fixed on a main shaft 13 through a connecting disc 5, and the pull rod 3 and the rack shaft 4 rotate along with the main shaft 13; the toothed belt wheel 1 driven by an X-axis servo motor drives a driving shaft 15 to rotate, the driving shaft 15 drives a nut 2 of a lead screw to rotate, the nut 2 only does rotary motion on the driving shaft, the nut rotates to drive a lead screw 16 to do axial linear motion, so that a pull rod 3 in a spindle 13 is driven to do linear feeding, the pull rod 3 drives a rack shaft 4 inside a facing head shell 11 to do axial linear motion, the rack shaft 4 drives gears I6 and II 12 on two sides to rotate, the gears I6 and II 12 respectively drive a rack I7 and a rack II 10 to do radial linear motion, the rack I7 and the rack II 10 drive a sliding seat I8 and a sliding seat II 9 to do radial motion, and the X-axis feeding function is completed. The pan housing 11 rotates as a whole while the shaft 15 can produce a controlled rotational speed for X-axis feed.

The utility model discloses be applied to the irrotational thread machining mechanism of small dimension body, the processing mode of this mechanism is the work piece irrotational, and the main shaft drives the rotatory continuous processing that realizes of numerical control facing head drive cutter, and this thread machining mechanism can be used to the batch production processing of the pipe thread machining trades small diameter tubular product such as natural gas pipe, oil pipe of small dimension.

The utility model discloses a working process:

firstly, a tool holder is fixed on a sliding seat I8 and a sliding seat II 9, then a spindle 13 drives the front part of a facing head to rotate, a Z-axis motor starts to feed, an X-axis motor starts to drive a screw nut 2 to rotate, the screw nut 2 rotates to drive a lead screw to do axial linear motion, so that a pull rod 3 in the spindle 13 is driven to do linear feed, a rack shaft 4 drives gears I6 and II 12 on two sides to rotate, the gears I6 and II 12 respectively drive a rack I7 and a rack II 10 to do radial linear motion, the rack I7 and the rack II 10 drive the sliding seat I8 and the sliding seat II 9 to do radial motion, the facing head rotates and the X-axis feeding function is completed, parts are machined, the moving direction is to move towards the center or away from the center simultaneously, and two tools can cut simultaneously during machining.

Claims (2)

1. The thread machining mechanism for non-rotation of the small-size pipe body comprises a toothed belt wheel, a driving shaft, a pull rod, a connecting disc and a facing head shell, wherein the facing head shell is fixedly connected with the connecting disc; the method is characterized in that:

a screw rod is arranged in the driving shaft in a penetrating manner; the screw rod is sleeved with a nut, and the nut is fixedly connected with the driving shaft; the front end of the lead screw is provided with a bearing; the bearing is provided with a flange plate, the rear end of the pull rod is sleeved on the bearing, and the pull rod is fixedly connected with the flange plate;

two gears are arranged in the facing head shell, and two sliding seats are arranged at the front end of the facing head shell; the front end of the pull rod is arranged in the facing head shell, a rack shaft is fixedly connected to the front end of the pull rod, the upper part and the lower part of the rack shaft are respectively meshed with two gears, and racks are arranged at the rear ends of the two sliding seats; the two gears are respectively meshed with racks at the rear ends of the two sliding seats.

2. A thread forming mechanism for non-rotation of small-gauge pipe bodies as claimed in claim 1, wherein: the pull rod is connected with the flange plate through threads.

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