CN210115468U - A special cutting device for bearing of CNC lathe - Google Patents

Abstract

The utility model discloses a special cutting device for a bearing of a numerically controlled lathe, which comprises a spindle box arranged on a bed and an upper end thereof, and a cutting part installed on the spindle box through a fixing plate for cutting workpieces. It includes a lower guide rail set on the surface of the fixed plate and a cutting part set above it, the cutting part is installed on the lead screw part used to drive it to complete the cutting and feeding action; The screw nut sleeve is arranged on the upper end face of the lower guide rail. The upper end of the screw nut sleeve is provided with a mounting area for installing the cutting part. The screw nut sleeve is matched with a lead screw. The power component that drives it to rotate relative to the screw nut sleeve, and the other end is rotatably connected to the screw fixing seat arranged on the upper end of the lower guide rail. The utility model has the advantages of compact structure, reasonable design, sensitive and reliable, stable performance, low labor intensity and high production efficiency. Features.

Description

A special cutting device for bearing of CNC lathe

technical field

The utility model belongs to the field of numerically controlled lathes, in particular to a special cutting device for bearings of numerically controlled lathes.

Background technique

In the bearing industry, bearing rings are the most used workpieces. General machine tools are mostly single-piece machining bearing rings. Our company produces a special CNC lathe cutting device for bearings. This can make tube processing more convenient and efficient, and automation and multi-function machine tools are also the industry development trend.

In the prior art, the single-piece ferrule is manually fed into the machine tool chuck for clamping, the cutting tool holder performs the cutting process, and then the workpiece is manually taken down and other processing procedures. The disadvantage is that the equipment and manual assistance time are increased, resulting in low work efficiency and high labor intensity.

Utility model content

The utility model overcomes the above-mentioned shortcomings of the prior art, and provides an automatic cutting device for a numerically controlled lathe. The device can realize automatic cutting, and complete the continuous one-time processing by combining the workpiece cutting and cutting, thereby reducing labor intensity and improving production efficiency.

To achieve the above object, the utility model provides the following technical solutions:

A special cutting device for bearings of a numerically controlled lathe, comprising a spindle box arranged on a bed and an upper end thereof, and a cutting component installed on the spindle box through a fixing plate for cutting workpieces;

The cutting part comprises a lower guide rail arranged on the surface of the fixing plate and a cutting part arranged above it, and the cutting part is installed on the lead screw part for driving it to complete the cutting and feeding action;

The screw part includes a screw nut sleeve that is slidably arranged on the upper end surface of the lower guide rail through a screw nut seat, the upper end of the screw nut sleeve is provided with an installation area for installing the cutting part, and a screw nut is matched with the screw nut sleeve, so One end of the lead screw is connected through the bearing seat to drive the power component to rotate relative to the screw nut sleeve, and the other end is rotatably connected with the lead screw fixing seat arranged on the upper end of the lower guide rail;

The cutting part includes a knife block which is connected with a sliding plate on the top of the nut sleeve through a knife block fixing bolt, and a cutting knife for cutting is installed on the knife block through a knife block screwdriver.

As a further solution of the present utility model: between the lower guide rail and the upper slide plate, a slide rail assembly for improving the feeding progress of the cutting part is provided, and the slide rail assembly includes a slide rail set on the lower end face of the upper slide plate and a slide rail set on the lower guide rail. A sliding plate member composed of two sliding blocks on the end face, a linear guide rail is arranged between the upper and lower sliding plates, and the sliding rail assembly also includes a sliding block pressing plate arranged on the outer side of the upper sliding plate for pressing the sliding block. The slider is positioned.

As a further solution of the present utility model: the power assembly includes a servo motor connected to the upper slide plate through a motor fixing seat and a coupling arranged at the output end for connecting with the lead screw, and the end of the coupling is provided with The front end cover of the left screw fixing seat is connected by a spacer, and the other end of the screw fixing seat corresponding to the front end cover is also provided with a rear end cover. It also improves the sealing performance between the screw and the fixed seat.

As a further solution of the present invention: the fixing plate is provided with a displacement assembly for driving the lower guide rail to move along the cutting direction, the displacement assembly includes a top plate fixed on the left end of the lower guide rail by bolts, and the top plate is provided with screw holes. and an adjusting screw arranged therein, one end of the adjusting screw is rotatably connected to one end of the fixing plate through a fixed bearing, and the other end of the adjusting screw is provided with a knob which is convenient for hand-holding.

As a further solution of the present invention: the cutting member is also provided with a travel limit component that is electrically connected with the lead screw component to limit the cutting feed stroke, and the travel limit component includes a bracket connected to the outer side of the lower guide rail. The limit board is arranged along the cutting and feeding direction, and the limit board is provided with two relative to the detection end of the limit switch and used to limit the movement stroke of the cutting member. limit block.

As a further solution of the present invention: the upper slide plate is provided with a fine-tuning assembly for adjusting the verticality of the upper knife table of the cutting part, the fine-tuning assembly comprises an adjustment fixing seat arranged on the upper sliding plate, and the adjustment fixing seat penetrates through a direction knife The fine-tuning screw hole of the table is matched with a fine-tuning screw hole. One end of the fine-tuning screw is provided with a knob for easy hand-holding.

Compared with the prior art, the beneficial effects of the present utility model are: the present utility model improves the existing requirements, optimizes the processing technology of the lathe, and can also perform workpiece cutting after loading and cutting. The utility model has the advantages of compact structure, reasonable design, sensitive and reliable, stable performance, low labor intensity and high production efficiency.

Description of drawings

FIG. 1 is a main view of the structure of the utility model.

FIG. 2 is a top view of the structure of the utility model.

FIG. 3 is a schematic structural diagram of the cutting part in the utility model.

FIG. 4 is a structural cross-sectional view of the cutting member in the utility model.

FIG. 5 is a top view of the structure of the cutting member in the utility model.

Among them: servo motor 1, coupling 2, spacer 3, front end cover 4, motor fixing seat 5, upper slide plate 6, screw nut sleeve 7, lead screw 8, tool table fixing bolt 9, cutting knife 10, screw nut seat 11, lower guide rail 12, adjusting screw 13, top plate 14, bracket 15, adjusting plate 16, fixing plate 17, knife block 18, knife block screw 19, adjusting fixing seat 20, adjusting bolt 21, travel switch 22, rear end cover 23 , Screw holder 24, linear guide 25, slider 26, limit plate 27, limit block 28, slider pressure plate 29.

The machine bed 100 , the headstock 200 , the cutting member 300 , and the cutting tool rest 400 .

Detailed ways

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility. The novel and simplified description does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

Referring to FIGS. 1-5 , in the embodiment of the present invention, a special cutting device for a bearing of a numerically controlled lathe includes a bed 100 , a spindle box 200 and a cutting tool rest 400 arranged on the upper end thereof, and the upper end of the spindle box 200 is fixed by a The plate 17 is provided with a cutting member 300 for cutting the workpiece;

The cutting member 300 includes a lower guide rail 12 disposed on the surface of the fixing plate 17 and a cutting member disposed above it, and the cutting member is mounted on the lead screw member for driving it to complete the cutting and feeding action;

The screw part includes a screw nut sleeve 7 which is slidably arranged on the upper end surface of the lower guide rail 12 through the screw nut seat 11 , the upper end of the screw nut sleeve 7 is provided with an installation area for installing the cutting part, and the screw nut sleeve 7 is matched with a mounting area. There is a lead screw 8, one end of the lead screw 8 is connected through the bearing seat to drive the power assembly for relative rotation with the lead nut sleeve 7, and the other end is rotatably connected with the lead screw fixing seat 24 arranged on the upper end of the lower guide rail 12. Driven by the assembly, the lead screw 8 and the nut sleeve 7 rotate relative to each other. Under the action of the thread, the nut sleeve 7 drives the cutting part to slide along the lower guide rail 12, thereby completing the cutting and feeding.

The cutting part includes a knife block 18 connected to the sliding plate 6 on the top of the nut sleeve 7 through knife block fixing bolts 9 , and a cutting knife 10 for cutting is installed on the knife block 18 through a knife block screwdriver 19 .

In order to improve the accuracy of cutting, between the lower guide rail 12 and the upper sliding plate 6 is provided a sliding rail assembly for improving the feeding progress of the cutting part. 12. A sliding plate member composed of two sliding blocks 26 on the upper end surface, a linear guide rail 25 is arranged between the upper and lower sliding plates, and the sliding rail assembly also includes a sliding block pressing plate 29 arranged on the outer side of the upper sliding plate 16 for pressing the sliding block. , the sliding block is positioned by the sliding block pressing plate 29, and the guide of the sliding block 16 and the linear guide rail 25 is matched, so that the feeding of the cutting part is more accurate, and the cutting accuracy is improved.

The power assembly includes a servo motor 1 connected to the sliding plate 6 through a motor fixing base 5 and a coupling 2 arranged at its output end for driving connection with the lead screw 8, and the end of the coupling 2 is provided with a pass through The sleeve 3 is connected to the front end cover 4 of the left screw fixing seat. The other end of the screw fixing seat 24 corresponding to the front end cover 4 is also provided with a rear end cover 23. The arrangement of the front and rear end covers helps to improve the screw fixing The service life of the bearing on the seat 24 is improved, and the sealing performance between the lead screw 8 and the fixed seat 24 is also improved.

The fixing plate 17 is provided with a displacement assembly for driving the lower guide rail 12 to move along the cutting direction. The displacement assembly includes a top plate 14 fixed on the left end of the lower guide rail 12 by bolts, and the top plate 14 is provided with screw holes and matching arrangements. In the adjusting screw 13, one end of the adjusting screw 13 is rotatably connected to one end of the fixing plate 17 through a fixed bearing, and the other end of the adjusting screw 13 is provided with a knob that is easy to hold. In actual use, the adjusting screw 13 and the top plate are driven by the knob. 14 rotates relatively, under the action of the thread, the top plate 14 will drive the lower guide rail 12 to move on the upper end face of the fixed plate 17, so that the position of the entire cutting member 300 on the spindle box 200 can be adjusted, thereby adjusting the cutting reference.

The cutting member 300 is also provided with a stroke limit component (shown in FIG. 3 and FIG. 4 ) that is electrically connected with the lead screw component to limit the cutting feed stroke. The stroke limit component includes a connection through the bracket 15 . The travel switch 22 on the outer side of the lower guide rail 12 and the limit plate 27 arranged on the outer side of the upper slide plate 6 are arranged along the cutting and feeding direction. Relative to the two limit blocks 28 used to limit the movement stroke of the cutting member, when cutting, the lead screw member drives the cutting member to move along the lower guide rail 12, and the limit block 27 on the limit plate 27 approaches and punishes the travel switch 22. , the screw part stops the feeding work, so as to avoid the problem of overfeeding.

The upper slide plate 6 is provided with a fine adjustment assembly (shown in FIG. 4 ) for adjusting the verticality of the upper knife table 18 of the cutting part. There is a fine-tuning screw hole facing the tool table 18, and a fine-tuning screw 21 is fitted through the fine-tuning screw hole. One end of the fine-tuning screw 21 is provided with a knob for easy hand-holding, and the other end of the fine-tuning screw 21 is rotated and provided with a push block that is in contact with the knife table 18. By rotating the fine-tuning screw 21, the push block at the end thereof exerts a force on the tool table 18 to offset it, so as to adjust its verticality. As shown in FIG. 5, the fine-tuning screw 21 is used for fine adjustment. , Loosen the four bolts on the tool table 18. When the adjusting bolt 21 on the adjusting fixing seat 20 rotates left and right, the pushing tool rest 18 will be pulled and rotated left and right. Tighten the four fixing bolts on the tool post 18 by fine-tuning the rotational offset.

The bed 100 is also provided with a hydraulic chuck for fixing the workpiece. The CNC lathe puts the pipe material into the hydraulic chuck by the automatic feeding equipment, and then clamps the pipe material. After the pipe material is clamped by the cutting tool holder 400, the pipe material is clamped. The control system program on the bed 100 automatically cuts the tube material. After cutting, the cutting parts on the body 100 can accurately cut the workpiece in the processing area to complete the processing, which not only improves the work efficiency, but also reduces the labor intensity. , greatly reducing production costs and improving work efficiency.

The utility model has the characteristics of compact structure, reasonable design, sensitive and reliable, stable performance, low labor intensity and high production efficiency, and further optimizes the processing of the numerical control lathe.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. A special cutting device for a bearing of a numerically controlled lathe, characterized in that it comprises a headstock (200) arranged on a bed (100) and an upper end thereof, and a headstock (200) installed on the headstock (200) by a fixing plate (17) for A cutting part (300) for cutting a workpiece; The cutting member (300) comprises a lower guide rail (12) arranged on the surface of the fixing plate (17) and a cutting member arranged above it, the cutting member is mounted on a screw member for driving it to complete the cutting and feeding action superior; The lead screw component includes a lead nut sleeve (7) that is slidably arranged on the upper end face of the lower guide rail (12) through a lead nut seat (11), the upper end of the lead nut sleeve (7) is provided with an installation area for installing the cutting component, so The screw nut (7) is matched with a lead screw (8), one end of the lead screw (8) passes through the bearing seat and is connected to a power assembly for driving it to rotate relative to the screw nut (7), and the other end is connected to the power assembly. The lead screw fixing seat (24) arranged on the upper end of the lower guide rail (12) is rotatably connected; The cutting part includes a knife block (18) connected with the sliding plate (6) on the top of the nut sleeve (7) through the knife block fixing bolt (9), and the knife block (18) is installed by a knife block screwdriver (19). There is a cutting knife (10) for cutting. 2. The special cutting device for CNC lathe bearings according to claim 1, wherein a slide rail assembly for improving the feeding progress of the cutting part is provided between the lower guide rail (12) and the upper slide plate (6), so The slide rail assembly includes a slide plate member consisting of a slide plate arranged on the lower end face of the upper slide plate (6) and two sliders (26) arranged on the upper end face of the lower guide rail (12), and a linear guide rail (25) is arranged between the upper and lower slide plates. ), the slide rail assembly further comprises a slider pressing plate (29) arranged on the outer side of the upper sliding plate (6) for pressing the slider, and the slider is positioned by the slider pressing plate (29). 3. The special cutting device for bearing of a numerically controlled lathe according to claim 1, wherein the power assembly comprises a servo motor (1) connected to the upper slide plate (6) through a motor holder (5) and a servo motor (1) arranged at the output end thereof A coupling (2) for driving connection with the lead screw (8), the end of the coupling (2) is provided with a front end cover (4) connected to the left lead screw fixing seat through a spacer (3), The other end of the lead screw fixing seat (24) corresponding to the front end cover (4) is also provided with a rear end cover (23), and the arrangement of the front and rear end covers helps to improve the use of the bearing on the lead screw fixing seat (24). life, and at the same time, the sealing performance between the lead screw (8) and the lead screw fixing seat (24) is improved. 4. The special cutting device for bearing of a numerically controlled lathe according to claim 1, characterized in that, a displacement assembly for driving the lower guide rail (12) to move along the cutting direction is provided on the fixed plate (17), and the displacement assembly It comprises a top plate (14) fixed on the left end of the lower guide rail (12) by bolts, the top plate (14) is provided with screw holes and an adjusting screw (13) arranged therein, and one end of the adjusting screw (13) passes through a fixed bearing It is rotatably connected with one end of the fixing plate (17), and the other end of the adjusting screw (13) is provided with a knob which is easy to handle. 5 . The special cutting device for a bearing of a numerically controlled lathe according to claim 1 , wherein the cutting member ( 300 ) is further provided with a stroke limiter that is electrically connected with the screw member to limit the cutting feed stroke. 6 . The travel limit assembly includes a travel switch (22) connected to the outer side of the lower guide rail (12) through a bracket (15) and a limit plate (27) arranged on the outer side of the upper slide plate (6), the limit plate ( 27) Arranged along the cutting and feeding direction, the limit plate (27) is provided with two limit blocks (28) opposite to the detection end of the travel switch (22) and used to limit the movement stroke of the cutting member. 6. The special-purpose cutting device for CNC lathe bearings according to any one of claims 1-5, wherein the upper slide plate (6) is provided with a fine-tuning assembly for adjusting the verticality of the upper knife rest (18) of the cutting part, The fine adjustment assembly includes an adjustment fixing seat (20) arranged on the upper slide plate (6), the adjustment fixing seat (20) is pierced with a fine adjustment screw hole facing the tool table (18), and a fine adjustment screw hole is fitted through the fine adjustment screw hole. A fine adjustment screw (21), one end of the fine adjustment screw (21) is provided with a knob which is easy to hold, and a push block arranged to rotate at the other end is in contact with the knife table (18).

Images