CN214349654U

CN214349654U - Knife rest for numerical control machine tool

Info

Publication number: CN214349654U
Application number: CN202120237708.4U
Authority: CN
Inventors: 封芳桂; 梁晓畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-08
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a knife rest for digit control machine tool, include: the cutter head is provided with a wedge-shaped groove, the bottom of the wedge-shaped groove is provided with a sliding groove, the opening of the sliding groove faces upwards and is communicated with the wedge-shaped groove, a limiting device is arranged in the sliding groove, one end of the limiting device is clamped into the sliding groove, and the other end of the limiting device extends upwards out of the wedge-shaped groove; the tool apron is embedded into the wedge-shaped groove and can slide along the wedge-shaped groove; the tool apron is provided with an open slot along the extending direction of the wedge-shaped slot, the part of the limiting device, which extends out of the wedge-shaped slot upwards, is embedded into the open slot, and the tool apron and the limiting device are connected through a nut so as to enable the tool apron to be screwed in the wedge-shaped slot. According to the utility model discloses knife rest for digit control machine tool can fixed connection on the blade disc through single slip bolt, and blade holder embedding wedge inslot has restricted reciprocating of blade holder, simple structure, convenient operation.

Description

Knife rest for numerical control machine tool

Technical Field

The utility model relates to a lathe knife rest technical field, in particular to knife rest for digit control machine tool.

Background

A numerical control machine is a short name for a numerical control machine, and is an automated machine equipped with a program control system capable of logically processing a program having control codes or other symbolic instructions, decoding it, expressing it in coded numbers, and inputting it to a numerical control device through an information carrier. After operation, the numerical control device sends out various control signals to control the action of the machine tool, and the parts are automatically machined according to the shape and the size required by the drawing. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, is a flexible and high-efficiency automatic machine tool, represents the development direction of the control technology of modern machine tools, and is a typical mechanical and electrical integration product. The existing cutter head is generally provided with a plurality of cutter seats, and different cutters are respectively arranged on the cutter seats to meet various processing requirements of workpieces; but the connection mode of the general tool apron and the cutter head is complicated and the disassembly is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a knife rest for digit control machine tool sets up the spout in the bottom of wedge groove, locates the stop device in the spout through the card and is connected with the blade holder to fix the blade holder, simple structure, it is convenient to dismantle.

According to the utility model discloses a knife rest for digit control machine tool of first aspect embodiment includes: the cutter head is provided with a wedge-shaped groove, the bottom of the wedge-shaped groove is provided with a sliding groove, the opening of the sliding groove faces upwards and is communicated with the wedge-shaped groove, a limiting device is arranged in the sliding groove, one end of the limiting device is clamped in the sliding groove, and the other end of the limiting device extends upwards out of the wedge-shaped groove; the bottom of the cutter holder is embedded into the wedge-shaped groove and can slide along the wedge-shaped groove; the cutter holder is provided with an open slot along the extending direction of the wedge-shaped slot, the part of the limiting device, which extends out of the wedge-shaped slot upwards, is embedded into the open slot, and the cutter holder and the limiting device are connected through a nut so as to enable the cutter holder to be screwed in the wedge-shaped slot.

According to the utility model discloses knife rest for digit control machine tool has following beneficial effect at least: at present, tool holders on most used tool pans are fastened through a plurality of nuts, accurate alignment is needed, disassembly is complex, time consumption is high, and production efficiency is affected; the utility model discloses a blade holder can fixed connection on the blade disc through stop device, and blade holder embedding wedge inslot has restricted reciprocating, simple structure, convenient operation of blade holder.

According to some embodiments of the utility model, the blade holder bottom be equipped with wedge groove section assorted embedding portion, the embedding portion embedding in the wedge groove.

According to some embodiments of the utility model, stop device is sliding bolt, sliding bolt includes head and pole body, the head card is gone into in the spout, pole body upwards extends wedge groove and embedding in the open slot.

According to some embodiments of the utility model, the spout section is the tongue, including the wide groove of bottom and the narrow groove on upper portion, the head embedding of sliding bolt in the wide groove, the pole body of sliding bolt passes the narrow groove upwards extends the wedge groove.

According to some embodiments of the utility model, the wide flute bottom is equipped with convex slide rail, sliding bolt's head be equipped with slide rail assorted recess, the slide rail embedding in the recess.

According to some embodiments of the present invention, the outer circumferential wall of the shaft body is provided with an external thread and a nut is screwed, and the tool holder is connected to the shaft body through the nut; the top of the open slot is provided with a circular slot, and a nut is arranged in the circular slot and is abutted against the bottom of the circular slot.

According to some embodiments of the utility model, blade holder upper portion is equipped with opening sword groove up for the lathe tool of processing work piece place in the sword inslot.

According to some embodiments of the present invention, the two sides of the tool holder are both provided with connecting plates extending in the radial direction of the wedge-shaped groove, and the connecting plates are provided with bar-shaped holes; the wedge groove both sides are equipped with the screw hole, the screw hole internal rotation is equipped with locking bolt, locking bolt passes the bar hole will the blade holder is screwed in the blade disc.

According to some embodiments of the utility model, the blade disc middle part is equipped with the rotation axis, the rotation axis is connected with power device in order to be used for the drive the rotation axis is rotatory, and then drives the blade disc is rotatory.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the tool holder of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a cross-sectional view at a-a in fig. 3.

Reference numerals:

the cutter head 100, the wedge-shaped groove 110, the sliding groove 120, the wide groove 121, the narrow groove 122, the sliding bolt 130, the head 131, the rod body 132, the groove 133, the sliding rail 140, the threaded hole 150, the locking bolt 151, the rotating shaft 160 and the connecting hole 170;

the tool holder 200, an open groove 210, an embedding part 220, a circular groove 230, a connecting plate 240, a strip-shaped hole 241 and a tool groove 250.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the utility model discloses a knife rest for digit control machine tool, include: the cutter head 100 is provided with a wedge-shaped groove 110, the bottom of the wedge-shaped groove 110 is provided with a sliding groove 120, an opening of the sliding groove 120 faces upwards and is communicated with the wedge-shaped groove 110, a limiting device is installed in the sliding groove 120, one end of the limiting device is clamped in the sliding groove 120, and the other end of the limiting device extends upwards out of the wedge-shaped groove 110. Specifically, the limiting device is a sliding bolt 130, the sliding bolt 130 includes a head 131 and a shaft 132, the head 131 is clamped in the sliding groove 120, and the shaft 132 extends upwards to form the wedge-shaped groove 110; the insert seat 200 is inserted into the wedge groove 110 and can slide along the wedge groove 110.

The tool holder 200 is provided with an open groove 210 along the extending direction of the wedge groove 110, the shaft 132 of the slide bolt 130 is inserted into the open groove 210, and the tool holder 200 and the slide bolt 130 are connected by a nut to fasten the tool holder 200 to the wedge groove 110. Further, the wedge-shaped groove 110 has a trapezoidal cross section, a wider lower portion and a narrower upper portion, and the tool holder 200 cannot move up and down after being embedded in the wedge-shaped groove 110 and can only slide along the extending direction of the wedge-shaped groove 110; the width of the opening groove 210 of the tool holder 200 is the same as the diameter of the shaft 132 of the sliding bolt 130, so that the shaft 132 can pass through the opening groove 210; the notches of the open slots 210 face away from the center of the impeller 100, and as the impeller 100 rotates, the centrifugal force of the rotation will cause the tool holder 200 to abut the slide bolt 130 and not to disengage from the impeller 100. The wedge-shaped grooves 110 are four in number and can be used for installing four tool holders 200, and the four tool holders 200 can be respectively provided with different turning tools to carry out different processing operations on a workpiece, so that various processing requirements are met. At present, most of the tool holders 200 on the tool pan 100 are fastened by a plurality of nuts, and accurate alignment is required, so that the tool pan is complex to disassemble, consumes more time, and affects the production efficiency; the utility model discloses a blade holder 200 can fixed connection on blade disc 100 through single sliding bolt 130, and blade holder 200 has restricted reciprocating of blade holder 200 in embedding wedge groove 110, simple structure, convenient operation.

In some embodiments of the present invention, the bottom of the tool holder 200 is provided with an insertion portion 220 matching with the profile of the wedge-shaped groove 110, and the insertion portion 220 is inserted into the wedge-shaped groove 110. As shown in fig. 2, the insertion portion 220 is also trapezoidal, the insertion portion 220 is provided at the bottom of the tool holder 200 and protrudes from the bottom surface of the tool holder 200, and after the insertion portion 220 is inserted into the wedge groove 110, the bottom surface of the tool holder 200 is attached to the upper surface of the tool pan 100.

In some embodiments of the present invention, the sliding groove 120 is a convex groove in cross section, and includes a bottom wide groove 121 and an upper narrow groove 122, the head 131 of the sliding bolt 130 is embedded in the wide groove 121, and the shaft 132 of the sliding bolt 130 passes through the narrow groove 122 and extends upward out of the wedge groove 110 and is embedded in the open groove 210.

In some embodiments of the present invention, the bottom of the wide groove 121 is provided with a convex sliding rail 140, the head 131 of the sliding bolt 130 is provided with a groove 133 matching with the sliding rail 140, and the sliding rail 140 is embedded in the groove 133. Specifically, as shown in fig. 4, the wide groove 121 and the narrow groove 122 are both rectangular grooves; the head 131 of the sliding bolt 130 is a rectangular structure, the width of the two opposite sides of the head 131 is exactly the same as the width of the wide groove 121, and when the sliding bolt 130 slides in the wide groove 121, the two sides of the head 131 in the width direction are attached to the side walls of the two sides of the wide groove 121; the upper surface of the head 131 is attached to the upper wall of the wide groove 121, and the lower surface contacts the lower wall of the wide groove 121, so that the sliding bolt 130 is limited to slide only along the extending direction of the wide groove 121, and the tool holder 200 is prevented from shaking during operation. The slide rail 140 is disposed on the bottom wall of the wide groove 121 and along the extending direction of the wide groove 121, and the slide rail 140 is embedded in the groove 133 of the head 131 to reduce the friction force when the slide bolt 130 slides along the wide groove 121. In addition, when the nut is screwed, the sliding bolt 130 cannot rotate, and the nut screwing failure caused by synchronous rotation of the nut and the sliding bolt 130 is avoided.

In some embodiments of the present invention, the outer circumferential wall of the shaft 132 is provided with an external thread and a nut is screwed, and the tool holder 200 is connected to the shaft 132 through the nut; the top of the open slot 210 is provided with a circular slot 230, and the nut is arranged in the circular slot 230 and is attached to the bottom of the circular slot 230. The nut is screwed on the shank 132 of the sliding bolt 130, and the outer diameter of the nut is smaller than the straight drop of the circular groove 230 but much larger than the groove width of the open groove 210. The bottom of the opening groove 210 is a cambered wall, the diameter of the cambered wall is consistent with that of the shaft 132, and the cambered wall is attached to the shaft 132 of the sliding bolt 130 during connection. After the cambered wall of the groove bottom of the open groove 210 is attached to the rod body 132, the nut is screwed to lock the tool holder 200 at the current position.

In some embodiments of the present invention, the tool holder 200 is provided with a tool groove 250 with an upward opening at the upper portion, and a turning tool for processing a workpiece is placed in the tool groove 250. As shown in fig. 2, the siping 250 is provided on the circular groove 230, or it can be understood that the circular groove 230 is provided on the bottom of the siping 250. It should be noted that the tip of the sliding bolt 130 does not extend beyond the upper surface of the circular groove 230, and the nut is also disposed in the circular groove 230 and does not protrude from the upper surface of the circular groove 230, so as to prevent interference with the lathe tool disposed in the tool groove 250.

In some embodiments of the present invention, the tool holder 200 is provided with connecting plates 240 at both sides thereof, the connecting plates 240 extending in the radial direction of the wedge groove 110, and the connecting plates 240 are provided with bar-shaped holes 241; threaded holes 150 are formed in two sides of the wedge-shaped groove 110, locking bolts 151 are screwed in the threaded holes 150, and the locking bolts 151 penetrate through the strip-shaped holes 241 to lock the cutter holder 200 with the cutter 100. Specifically, as shown in fig. 1 and 3, an external thread is provided on the outer peripheral wall of the locking bolt 151, an internal thread matching the external thread of the locking bolt 151 is provided in the threaded hole 150, and one end of the locking bolt 151 passes through the strip-shaped hole 241 and is screwed into the threaded hole 150; a nut is then screwed in from the upper portion of the lock bolt 151 to lock the tool holder 200 with the tool pan 100.

It can be understood that the tool holder 200 can be fixed after the sliding bolt 130 is locked on the tool holder 200 by the nut, and therefore the locking bolt 151 is not required, and the locking bolt 151 is only used as a protection way to stabilize the position of the tool holder 200.

In some embodiments of the present invention, the middle of the cutter head 100 is provided with a rotating shaft 160, and the rotating shaft 160 is connected with a power device for driving the rotating shaft 160 to rotate, so as to drive the cutter head 100 to rotate.

In some embodiments of the present invention, the cutter head 100 further has a connecting hole 170, and an internal thread is provided in the connecting hole 170 for connecting different cutter holders 200. Specifically, as shown in fig. 1, the connecting hole 170 is used for connecting a tool holder 200 that is screwed to the cutter head 100, and the tool holder 200 used is different from the tool holder 200 described above.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a knife rest for digit control machine tool which characterized in that includes:

the cutter head (100) is provided with a wedge-shaped groove (110), a sliding groove (120) is formed in the bottom of the wedge-shaped groove (110), an opening of the sliding groove (120) faces upwards and is communicated with the wedge-shaped groove (110), a limiting device is installed in the sliding groove (120), one end of the limiting device is clamped into the sliding groove (120), and the other end of the limiting device extends upwards out of the wedge-shaped groove (110);

the bottom of the tool apron (200) is embedded into the wedge-shaped groove (110) and can slide along the wedge-shaped groove (110); an open groove (210) is formed in the tool holder (200) along the extending direction of the wedge-shaped groove (110), the part of the limiting device, which extends out of the wedge-shaped groove (110) upwards, is embedded into the open groove (210), and the tool holder (200) and the limiting device are connected through nuts so that the tool holder (200) is screwed in the wedge-shaped groove (110).

2. The tool post for a numerical control machine tool according to claim 1, wherein: the bottom of the tool apron (200) is provided with an embedding part (220) matched with the section of the wedge-shaped groove (110), and the embedding part (220) is embedded into the wedge-shaped groove (110).

3. The tool post for a numerical control machine tool according to claim 1, wherein: the limiting device is a sliding bolt (130), the sliding bolt (130) comprises a head (131) and a rod body (132), the head (131) is clamped in the sliding groove (120), and the rod body (132) extends upwards out of the wedge-shaped groove (110) and is embedded in the open groove (210).

4. The tool post for a numerical control machine tool according to claim 3, wherein: the cross section of the sliding groove (120) is a convex groove and comprises a wide groove (121) at the bottom and a narrow groove (122) at the upper part, the head (131) of the sliding bolt (130) is embedded into the wide groove (121), and the shaft body (132) of the sliding bolt (130) penetrates through the narrow groove (122) and extends out of the wedge-shaped groove (110) upwards.

5. The tool post for a numerical control machine tool according to claim 4, wherein: the bottom of the wide groove (121) is provided with a convex sliding rail (140), the head (131) of the sliding bolt (130) is provided with a groove (133) matched with the sliding rail (140), and the sliding rail (140) is embedded into the groove (133).

6. The tool post for a numerical control machine tool according to claim 5, wherein: the outer peripheral wall of the rod body (132) is provided with external threads and a nut is screwed on the outer peripheral wall of the rod body (132), and the cutter holder (200) is connected with the rod body (132) through the nut; the top of the open slot (210) is provided with a circular slot (230), and a nut is arranged in the circular slot (230) and is abutted against the bottom of the circular slot (230).

7. The tool post for a numerical control machine tool according to claim 6, wherein: the upper part of the tool apron (200) is provided with a tool groove (250) with an upward opening, and a turning tool for processing a workpiece is placed in the tool groove (250).

8. The tool post for a numerical control machine tool according to claim 7, wherein: connecting plates (240) extending towards the radial direction of the wedge-shaped groove (110) are arranged on two sides of the cutter holder (200), and the connecting plates (240) are provided with strip-shaped holes (241); wedge groove (110) both sides are equipped with screw hole (150), screw hole (150) internal rotation is equipped with locking bolt (151), locking bolt (151) pass bar hole (241), will blade holder (200) screw in blade disc (100).

9. The tool post for a numerical control machine tool according to claim 1, wherein: the rotary cutter is characterized in that a rotary shaft (160) is arranged in the middle of the cutter head (100), and the rotary shaft (160) is connected with a power device for driving the rotary shaft (160) to rotate so as to drive the cutter head (100) to rotate.