CN212121718U - Boring device - Google Patents

Abstract

The utility model discloses a boring device, including the guide arm, the guide seat, be equipped with the direction through-hole on the guide seat, the direction through-hole cover is established on the guide arm, the front end of guide arm is equipped with connecting portion, still includes the boring bar, one section end of boring bar is equipped with cutter mounting groove and spliced eye, the spliced eye with connecting portion detachably connects. The boring device does not depend on a workpiece to be processed to support the boring bar, the boring bar and the workpiece to be processed do not have a friction effect, and the boring device is more suitable for high-speed boring and has the advantage of energy conservation.

Description

Boring device

Technical Field

The utility model relates to a machining equipment field especially relates to a bore hole device.

Background

Boring is a method of machining a hole, which refers to further machining of a forged, cast or drilled hole. And (3) extending the boring cutter into the hole, and cutting the metal in the hole by utilizing the mutual rotation of the boring cutter and the workpiece to enlarge the hole. The boring hole can enlarge the aperture, improve the precision, reduce the surface roughness and better correct the deflection of the original hole axis.

The deep hole boring needs to use a boring bar, a boring cutter is arranged on the boring bar, and a hydraulic pump station is added to discharge scrap iron from a machined hole by using cooling liquid. When processing the deep hole, the length of boring bar is great, and under the rotatory condition of motor drive boring bar, in order to avoid boring bar vibration, prior art sets up bearing structure at the tip of boring bar usually, and bearing structure butt is downthehole at the processing. For example, chinese patent publication No. CN208613806U discloses a roller inner hole processing device, which includes a boring bar, a boring tool is mounted at a processing end of the boring bar, a sinking table is disposed on an outer surface of the boring bar near the processing end, a boring tool holder with an opening is clamped on the sinking table, a connecting hole is disposed on the opposite side of the opening of the boring tool holder along an axial direction of the boring bar, and at least three supporting seats are mounted on an outer peripheral surface of the boring tool holder and used for adapting to a diameter of an inner hole of a roller to be processed and having adjustable height.

The problem that prior art exists is that, in the relative rotatory in-process of boring bar and work piece, can produce a large amount of heats because of the friction effect between bearing structure and the work piece, can only increase the volume of coolant liquid or reduce the rotational speed of bore hole this moment, so can cause cost increase, efficiency to reduce. In addition, the friction force of the workpiece is increased, so that the load of a motor is increased, the energy consumption is increased, the cost is increased, and the efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the supporting structure on the existing boring bar has the problems of high energy consumption and low processing efficiency due to the friction between the supporting structure and the processed hole.

The utility model provides a solution of its technical problem is:

the boring device comprises a guide rod and a guide seat, wherein a guide through hole is formed in the guide seat, the guide through hole is sleeved on the guide rod, a connecting part is arranged at the front end of the guide rod, the boring device further comprises a boring rod, a cutter mounting groove and an inserting hole are formed in one section of the end of the boring rod, and the inserting hole is detachably connected with the connecting part.

As a further improvement of the technical scheme, a copper sleeve is arranged in the guide through hole and sleeved on the guide rod.

As an optional technical scheme, a ball bearing is arranged in the guide through hole and sleeved on the guide rod.

As a further improvement of the technical scheme, the inner ring of the ball bearing is made of copper.

As an optional technical solution, the number of the guide seats is at least two.

As an optional technical solution, the longitudinal section of the guide seat is trapezoidal.

As an optional technical solution, the connecting parts are prisms, and the number of the connecting parts is at least two.

The utility model has the advantages that: the boring device does not depend on a workpiece to be machined to support the boring bar, does not have a friction effect between the boring bar and the workpiece to be machined, is more suitable for high-speed boring, and has the advantage of energy conservation.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

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

fig. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view of a portion of the guide bar of the present invention;

fig. 4 is a partially enlarged view of the boring bar of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

With reference to fig. 1 to 4, this is an embodiment of the invention, in particular:

the boring device comprises a guide rod 1 and a guide seat 2, wherein a guide through hole 21 is formed in the guide seat 2, the guide through hole 21 is sleeved on the guide rod 1, a connecting part 11 is arranged at the front end of the guide rod 1, the boring device further comprises a boring rod 4, a cutter mounting groove 41 and an inserting hole 42 are formed in one section of the boring rod 4, and the inserting hole 42 is detachably connected with the connecting part 11.

When in use, an external boring cutter is mounted in the cutter mounting groove 41, and the end of the boring bar 4 is connected by the connecting part 11. The guide rod 1 and the boring rod 4 respectively extend into a hole to be processed from two ends of a workpiece to be processed, the guide rod 1 and the boring rod 4 are connected with each other through the connecting part 11 and the inserting hole 42, the boring rod 4 is driven to rotate by an external motor, and the guide seat 2 and the external motor are respectively arranged on two sides of the hole to be processed. In the boring process, the boring bar 4 gradually goes deep into a processed hole, the guide rod 1 slides along the guide through hole 21 under the pushing of the boring bar 4, the guide rod 1 is supported by the guide seat 2, the end part of the boring bar 4 is supported by the guide rod 1, the boring bar 4 is not easy to vibrate or bend, and the guide rod 1 can replace a support structure in the prior art to play a role in supporting the boring bar 4. When boring, under the condition that the workpiece rotates and the boring rod 4 is static, the guide rod 1 and the guide seat 2 do not move relatively, the load of a motor cannot be increased, and the boring machine is energy-saving and suitable for high-speed machining; the structure of this application does not rely on by the processing work piece to support boring bar 4, and boring bar 4 and by not having the friction between the processing work piece, be applicable to high-speed bore hole more, machining efficiency is high to energy-conserving benefit has.

Furthermore, a copper sleeve is arranged in the guide through hole 21 and sleeved on the guide rod 1. During boring, under the condition that the boring rod 4 rotates and a workpiece is static, the guide rod 1 and the guide seat 2 move relatively, and the copper sleeve is arranged to reduce friction between the guide through hole 21 and the guide rod 1, reduce energy consumption and improve efficiency.

In some embodiments, the guiding through hole 21 is provided with a ball bearing 3, and the ball bearing 3 is sleeved on the guide rod 1. In the case where the boring bar 4 is rotated and the workpiece is stationary at the time of boring, the provision of the ball bearing 3 is also a way of reducing the friction between the guide through-hole 21 and the guide bar 1, and since the movement between the guide through-hole 21 and the guide bar 1 includes a linear movement in the horizontal direction as well as a rotational movement, the ball bearing 3 can reduce the friction of the rotational movement.

Further, the material of the inner ring of the ball bearing 3 is copper. So set up, can reduce the frictional force of rotary motion, also can reduce the frictional force of the rectilinear motion of horizontal direction.

In some embodiments, the number of said guides 2 is at least two. The requirement for the form and position tolerance of the guide through holes 21 can be reduced by increasing the number of the guide seats 2, in the case that the number of the guide seats 2 is only one, the precision of the guide through holes 21 must be very high, the inclination of the guide through holes 21 can cause the axis of the support guide rod 1 to deviate from the horizontal direction, and the small inclination amount of the guide through holes 21 can also cause the height deviation of the two ends of the support guide rod 1 to be large due to the large length of the support guide rod 1. By arranging the two guide seats 2 on the support guide rod 1, under the condition that the lowest heights of the two guide seats 2 are different, the deviation angle between the axis of the support guide rod 1 and the horizontal direction can be reduced by increasing the distance between the two guide seats 2. Therefore, the number of the guide seats 2 of at least two pieces can reduce the accuracy requirement of the guide through holes 21, and can reduce the deviation angle of the axis of the support guide 1 from the horizontal direction.

In some embodiments, the longitudinal section of the guide seat 2 is trapezoidal. This structure can reduce the focus of guide 2, improves guide 2's stability.

In some embodiments, the connecting portion 11 is a prism, and the number of the connecting portions 11 is at least two. The two or more connecting parts 11 can well transmit the rotation of the boring bar 4 to the support guide bar 1, and the prism-shaped connecting parts 11 can limit the degree of freedom of connection between the connecting parts 11 and the boring bar 4 by using the side surfaces thereof, so that the connection precision is high.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (7)

1. A boring device is characterized in that: including guide arm (1), guide holder (2), be equipped with direction through-hole (21) on guide holder (2), direction through-hole (21) cover is established on guide arm (1), the front end of guide arm (1) is equipped with connecting portion (11), still includes boring bar (4), one section end of boring bar (4) is equipped with cutter mounting groove (41) and spliced eye (42), spliced eye (42) with connecting portion (11) detachably connect.

2. A boring device as claimed in claim 1, wherein: a copper sleeve is arranged in the guide through hole (21), and the guide rod (1) is sleeved with the copper sleeve.

3. A boring device as claimed in claim 1, wherein: a ball bearing (3) is arranged in the guide through hole (21), and the ball bearing (3) is sleeved on the guide rod (1).

4. A boring device as claimed in claim 3, wherein: the inner ring of the ball bearing (3) is made of copper.

5. A boring device as claimed in claim 1, wherein: the number of the guide seats (2) is at least two.

6. A boring device as claimed in claim 1, wherein: the longitudinal section of the guide seat (2) is trapezoidal.

7. A boring device as claimed in claim 1, wherein: the connecting parts (11) are prisms, and the number of the connecting parts (11) is at least two.

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