CN115609049A

CN115609049A - Clamp

Info

Publication number: CN115609049A
Application number: CN202211387790.4A
Authority: CN
Inventors: 曾家文; 周朝富; 覃鸿; 李少青; 陈锦泉
Original assignee: South China Marine Machinery Co Ltd
Current assignee: South China Marine Machinery Co Ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-01-17

Abstract

The invention provides a clamp which comprises a tool rest and a base, wherein no balancing weight is required to be arranged, the structure is light, the centrifugal force generated when a facing head rotates is small, vibration is not easy to occur, and the machining precision is good; the base is provided with a guide block and a connecting device which are matched with a sliding groove of a facing head of the boring machine, and the connecting device is used for limiting the clamp on the boring machine; the connecting device is provided with an annular limiting part, the guide block is matched with the guide groove of the sliding groove, the annular limiting part is matched with the limiting groove of the sliding groove, and the base can be quickly and preliminarily connected with the flat rotating disc under the combined action of the annular limiting part and the guide block; the clamping part is used for fixing the cutter, and a first accommodating area, a second accommodating area and a third accommodating area are formed on the clamping part; therefore, the cutter is arranged in different areas of the accommodating groove according to different processing requirements, and the use is convenient.

Description

Clamp

Technical Field

The invention relates to the field of boring machines, in particular to a clamp.

Background

The boring machine is a machine tool for boring the existing prefabricated holes of the workpiece by mainly using a boring cutter, generally, the rotation of the boring cutter is a main motion, the movement of the boring cutter or the workpiece is a feed motion, and the boring machine is mainly used for machining high-precision holes or finishing finish machining of a plurality of holes by positioning once; the cutter base of the existing boring machine is installed on the facing head through the balancing weight, so that the installation and the disassembly of the cutter base are inconvenient, and meanwhile, because the balancing weight is heavy, when the facing head rotates, the balancing weight can generate stronger centrifugal force, so that the rotating speed of a main shaft can be increased, the main shaft can be selected at first easily to vibrate at this time, and then the cutter can vibrate. Resulting in tool wear and further workpiece accuracy problems. Meanwhile, the cutter base is only provided with one cutter clamping position, so that the cutter base is inconvenient to use.

Disclosure of Invention

The invention provides a clamp which is light in structure; the tool rest is stably connected with the base, and the base is stably connected with the facing head; the clamping part is provided with a plurality of cutter clamping positions, and the use is convenient.

In order to achieve the purpose, the technical scheme of the invention is as follows: a fixture is installed on a boring machine for use, a facing head of the boring machine is provided with a sliding groove, the sliding groove comprises a guide groove and a limiting groove, the limiting groove is arranged on one side of the guide groove and communicated with the guide groove, the width of the limiting groove is larger than that of the guide groove, the fixture comprises a tool rest and a base, the tool rest is detachably installed on the base, the base comprises a bottom plate and a fixed seat, and the fixed seat is arranged at the top of the bottom plate; the fixed seat is internally provided with an assembly hole which penetrates through the fixed seat and the bottom plate; the tool rest comprises a clamping part and an inserting part, and one end of the inserting part is connected with the clamping part.

An assembly fixing hole is formed in the fixing seat along the radial direction of the assembly hole and is communicated with the assembly hole; the second connecting piece penetrates through the assembly fixing hole to be in contact with the flat position and fix the inserting part in the assembly hole.

Connecting holes are respectively formed in the two ends of the bottom plate, and a guide block is arranged at the bottom of the bottom plate in an outward protruding mode and used for being arranged in the guide groove in a sliding mode; one connecting hole penetrates through the guide block; a connecting device penetrates through the connecting hole and comprises a first connecting piece and a first locking piece, and the first connecting piece penetrates through the connecting hole from the bottom of the bottom plate and is connected with the first locking piece; the peripheral wall of the first connecting piece is convexly provided with an annular limiting piece, and the annular limiting piece is arranged at one end of the first connecting piece, which is far away from the first locking piece; the annular limiting part is arranged in the limiting groove in a sliding mode and limits the base along the axial direction of the assembling hole.

The clamping part comprises a first clamping part, a second clamping part and a blocking part, the first clamping part is arranged on one side of the clamping part, the second clamping part is arranged on the other side of the clamping part, and the blocking part is arranged between the first clamping part and the second clamping part.

An accommodating cavity arranged around the stop piece is formed between the first clamping piece and the second clamping piece, and the accommodating cavity comprises a first accommodating area, a second accommodating area and a third accommodating area; the first accommodating area is arranged at one side of the abutting piece, the second accommodating area is arranged at the other side of the abutting piece, and the third accommodating area is arranged at one end of the abutting piece and is communicated with the first accommodating area and the second accommodating area; the first clamping piece is provided with more than two cutter fixing holes, the first accommodating area, the second accommodating area and the third accommodating area are respectively communicated with the at least two cutter fixing holes, and the cutter fixing holes are provided with third connecting pieces for fixing cutters.

Above setting, anchor clamps pass through the base and the knife rest is constituteed, directly is connected with the facing head through the base, need not set up the balancing weight, and the structure is light, and then the centrifugal force that the facing head produced when rotatory is little, is difficult to take place vibrations, and machining precision is good. Through the cooperation of second connecting piece and assembly fixed orifices, realize the stable installation of second connecting piece on the fixing base, the second connecting piece compresses tightly simultaneously and fixes inserting portion on flat position, realizes the stable connection of knife rest and base.

The base is provided with a guide block, the guide block is matched with the guide groove, and the sliding groove has a limiting effect on the guide block along the radial direction of the assembling hole; the guide block is arranged in the sliding groove in a sliding mode, and guiding is achieved for the base to be installed on the facing head.

The annular limiting piece is matched with the limiting groove; through connecting device and pedestal connection, cyclic annular locating part slides and sets up in the spacing groove, along the radial direction of pilot hole, spacing groove and spout carry on spacingly to the base simultaneously, advance the guide effect when promoting the installation base. Under the combined action of the annular limiting part and the guide block, the base can be quickly and preliminarily connected with the facing head.

Because the width of the limiting groove is greater than that of the guide groove, and the annular limiting part is matched with the limiting groove, the size of the annular limiting part is greater than that of the sliding groove, and the sliding groove can limit the annular limiting part along the axial direction of the assembling hole; the limiting groove can limit the annular limiting part along the axial direction of the assembly hole, and can also limit the annular limiting part along the radial direction of the assembly hole. Therefore, the connection reliability of the base and the facing head is good.

The clamping part is used for fixing the cutter, and a first accommodating area, a second accommodating area and a third accommodating area are formed on the clamping part; the clamping part is provided with a plurality of tool clamping positions, so that the tools are arranged in the first accommodating area, the second accommodating area or the third accommodating area according to different processing requirements; the operation is convenient; the resisting piece plays a role in supporting the first clamping piece and the second clamping piece, the overall strength of the tool rest is improved, and meanwhile, when a tool is installed, the tool is resisted through the resisting piece; the tool is conveniently and preliminarily mounted on the clamping part, and then the tool is fixed through the third connecting piece to realize the stable connection between the tool and the clamping part; the cutter is convenient to install.

Furthermore, the assembly fixing hole is provided with an internal thread, and the second connecting piece is a bolt. The structure is simple, and the connection is stable

Furthermore, the cutter fixing hole is provided with internal threads, and the third connecting piece is a bolt. Therefore, the structure is simple and the connection is stable.

Furthermore, an avoiding part is connected between the clamping part and the inserting part, the avoiding part comprises a first avoiding part and a second avoiding part, the first avoiding part is connected with the first clamping part and the inserting part, the second avoiding part is connected with the second clamping part and the inserting part, and the blocking part extends into the avoiding part and is connected with the first avoiding part and the second avoiding part; form first dodge groove and second dodge the groove between first dodge piece and second dodge the piece, first dodge the groove setting and keep off one side of piece and with first holding region intercommunication, the second dodge the groove setting and keep off the opposite side of piece and with second holding region intercommunication.

According to the arrangement, the avoidance part is provided with the first avoidance groove and the second avoidance groove, the first avoidance groove is communicated with the first accommodating area, and the second avoidance groove is communicated with the second accommodating area; therefore, when the cutter is clamped in the first accommodating area and the second accommodating area, the cutter can extend into the first avoidance groove and the second avoidance groove, and avoidance of the cutter is further realized; therefore, the cutters with different lengths can be assembled on the first accommodating area and the second accommodating area without influencing the use.

Furthermore, the first portion of dodging is connected with connecting portion between the one end that is close to grafting portion and the one end that the second portion of dodging is close to grafting portion, and connecting portion are connected with grafting portion, and the piece that keeps out extends to in the connecting portion.

Above setting, through forming connecting portion, in the piece extends to the connecting portion that keeps out simultaneously, promote the intensity of dodging the portion.

Furthermore, one side of the connecting part close to the stop part is a plane.

Above setting, the end of cutter with be used for the plane contact time, produce frictional force between connecting portion and the cutter, promote the cutter under the effect of frictional force and install the stability at first holding area or second holding area.

Furthermore, the connecting part is arranged in a protruding mode outwards along the direction perpendicular to the length direction of the inserting part. This can increase the contact area of the cutter with the connecting portion.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the base of the present invention. .

Fig. 3 is a top view of the base of the present invention.

FIG. 4 is a front view of a base of the present invention

Fig. 5 is a top view of the tool holder of the present invention.

Fig. 6 is a cross-sectional view of a tool holder according to the present invention.

Fig. 7 is a front view of the blade holder of the present invention.

Fig. 8 is a schematic view of a first connecting member according to the present invention.

Fig. 9 is a schematic view of a chute in a facing head.

Fig. 10 is a schematic view of the present invention in connection with a facing head.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-10; a clamp is mounted on a boring machine for use, referring to fig. 9 and 10, a facing head 1 of the boring machine is provided with a sliding groove 11, the sliding groove 11 comprises a guide groove 12 and a limiting groove 13, the limiting groove 13 is arranged on one side of the guide groove 12 and is communicated with the guide groove 12, and the width of the limiting groove 13 is larger than that of the guide groove 12.

The fixture comprises a tool rest 2 and a base 3, wherein the tool rest 2 is detachably mounted on the base 3, the base 3 comprises a bottom plate 31 and a fixed seat 32, and the fixed seat 32 is arranged at the top of the bottom plate 31; an assembly hole 33 is formed in the fixed seat 32, and the assembly hole 33 penetrates through the fixed seat 32 and the bottom plate 31; the tool holder 2 comprises a clamping part 21 and an insertion part 22, one end of the insertion part 22 is connected with the clamping part 21, and the insertion part 22 is detachably arranged in the assembly hole 33 through a second connecting piece 4.

In the present embodiment, the fitting fixing holes 34 are provided on the fixing base 32 in the radial direction of the fitting holes 33, and in the present embodiment, two fitting fixing holes 34 are provided. The fitting fixing hole 34 communicates with the fitting hole 33; the inserting part 22 is provided with a flat position 221 arranged along the length direction of the inserting part 22, the flat position 221 corresponds to the assembling fixing hole 34, the assembling fixing hole 34 is provided with internal threads, the second connecting piece 4 is a bolt, and the second connecting piece 4 is installed in the assembling fixing hole 34 to fix the inserting part 22. Through the cooperation of second connecting piece 4 and assembly fixed orifices 34, realize the stable installation of second connecting piece 4 on fixing base 32, second connecting piece 4 compresses tightly fixes inserting portion 22 on flat position 221 simultaneously, realizes the stable connection of knife rest 2 and base 3.

The bottom plate 31 has two connecting holes 35 at its two ends, respectively, and in this embodiment, two connecting holes 35 are provided at one end of the bottom plate 31 and two connecting holes 35 are provided at the other end of the bottom plate 31. A guide block 36 is convexly arranged at the bottom of the bottom plate 31 outwards, and the guide block 36 is used for being arranged in the guide groove 12 in a sliding manner; a guide block 36 is arranged on the base 3, the guide block 36 is matched with the guide groove 12, and the sliding groove 11 plays a limiting role on the guide block 36 along the radial direction of the assembling hole 33; the guide block 36 is slidably arranged in the sliding groove 11 to guide the base 3 to be mounted on the facing head 1.

Two connecting holes 35 at one end of the bottom plate 31 are arranged through the guide block 36; a connecting device 5 is arranged on the connecting hole 35 in a penetrating manner, the connecting device 5 comprises a first connecting piece 51 and a first locking piece 52, and the first connecting piece 51 penetrates through the connecting hole 35 from the bottom of the bottom plate 31 to be connected with the first locking piece 52; in the present embodiment, the first connecting member 51 is a bolt, and the first locking member 52 is a nut. An annular limiting piece 511 is convexly arranged on the peripheral wall of the first connecting piece 51, and the annular limiting piece 511 is arranged at one end of the first connecting piece 51 far away from the first locking piece 52; the annular limiting member 511 is slidably disposed in the limiting groove 13 and limits the base 3 in the axial direction of the mounting hole 33. The annular limiting piece 511 is matched with the limiting groove 13; through connecting device 5 and base 3 be connected, annular locating part 511 slides and sets up in spacing groove 13, along the radial direction of pilot hole 33, and spacing groove 13 and spout 11 carry out spacingly to base 3 simultaneously, advance the guide effect when promoting installation base 3. Under the combined action of the annular limiting piece 511 and the guide block 36, the base 3 can be quickly and preliminarily connected with the facing head 1.

Because the width of the limiting groove 13 is greater than that of the guide groove 12, and the annular limiting piece 511 is matched with the limiting groove 13, the size of the annular limiting piece 511 is greater than that of the sliding groove 11, and the sliding groove 11 limits the annular limiting piece 511 along the axial direction of the assembly hole 33; the stopper groove 13 can restrict the annular stopper 511 in either the axial direction of the fitting hole 33 or the radial direction of the fitting hole 33. Thus, the base 3 and the facing head 1 are connected with good reliability.

The clamping portion 21 includes a first clamping member 211, a second clamping member 212 and a resisting member 213, the first clamping member 211 is disposed on one side of the clamping portion 21, the second clamping member 212 is disposed on the other side of the clamping portion 21, and the resisting member 213 is disposed between the first clamping member 211 and the second clamping member 212.

A receiving cavity 214 disposed around the stopper 213 is formed between the first clamping member 211 and the second clamping member 212, and the receiving cavity 214 includes a first receiving area 215, a second receiving area 216, and a third receiving area 217; the first accommodating area 215 is arranged on one side of the blocking piece 213, the second accommodating area 216 is arranged on the other side of the blocking piece 213, and the third accommodating area 217 is arranged at one end of the blocking piece 213 and is communicated with the first accommodating area 215 and the second accommodating area 216; one end of the first receiving region 215 overlaps one end of the third receiving region 217, and one end of the second receiving region 216 overlaps one end of the third receiving region 217.

The first clamping piece 211 is provided with two or more tool fixing holes 23, the first accommodating area 215, the second accommodating area 216 and the third accommodating area 217 are respectively communicated with the at least two tool fixing holes 23, and the tool fixing holes 23 are provided with third connecting pieces 6 for fixing tools. In this embodiment, the tool fixing hole 23 is provided with an internal thread, and the third connecting member 6 is a bolt. Therefore, the structure is simple and the connection is stable.

A first accommodating area 215, a second accommodating area 216 and a third accommodating area 217 are formed on the clamping part 21 by arranging the clamping part 21 for fixing the cutter; in this way, the tool is arranged in the first accommodation area 215, the second accommodation area 216 or the third accommodation area 217 for different machining requirements; the operation is convenient; the stop member 213 plays a role of supporting the first clamping member 211 and the second clamping member 212, so as to improve the overall strength of the tool holder 2, and at the same time, when a tool is mounted, the tool is stopped by the stop member 213; the tool is convenient to be initially installed on the clamping part 21, and then the tool is fixed through the third connecting piece 6 to realize the stable connection between the tool and the clamping part 21; the cutter is convenient to install.

An avoiding part 24 is connected between the clamping part 21 and the inserting part 22, the avoiding part 24 comprises a first avoiding piece 241 and a second avoiding piece 242, the first avoiding piece 241 is connected with the first clamping piece 211 and the inserting part 22, the second avoiding piece 242 is connected with the second clamping piece 212 and the inserting part 22, and the blocking piece 213 extends into the avoiding part 24 and is connected with the first avoiding piece 241 and the second avoiding piece 242; a first avoiding groove 244 and a second avoiding groove 245 are formed between the first avoiding member 241 and the second avoiding member 242, the first avoiding groove 244 is disposed at one side of the stopper 213 and is communicated with the first accommodating area 215, and the second avoiding groove 245 is disposed at the other side of the stopper 213 and is communicated with the second accommodating area 216.

The first avoiding groove 244 is communicated with the first accommodating area 215, and the second avoiding groove 245 is communicated with the second accommodating area 216; thus, when the tool is clamped in the first accommodation region 215 and the second accommodation region 216, the tool can extend into the first avoidance groove 244 and the second avoidance groove 245, so as to avoid the tool; this allows tools of different lengths to be fitted in the first 215 and second 216 housing regions without compromising use.

A connecting portion 243 is connected between one end of the first avoiding portion 24 close to the plugging portion 22 and one end of the second avoiding portion 24 close to the plugging portion 22, the connecting portion 243 is connected with the plugging portion 22, and the blocking piece 213 extends into the connecting portion 243. By forming the connecting portion 243 while the stopper 213 extends into the connecting portion 243, the strength of the escape portion 24 is improved.

In the present embodiment, a side of the connecting portion 243 close to the stopper 213 is a plane. When the end of the tool is in contact with the plane, a friction force is generated between the connecting portion 243 and the tool, and the stability of the tool mounted in the first receiving area 215 or the second receiving area 216 is improved by the friction force.

In this embodiment, the connecting portion 243 protrudes outward along a direction perpendicular to the length direction of the inserting portion 22. This can increase the contact area of the cutter with the connecting portion 243.

The assembling method of the clamp comprises the following steps:

s1, corresponding an assembly fixing hole of a base fixing seat on a flat position of a tool rest insertion part;

s2, installing the tool rest inserting part in the assembling hole of the base;

s3, mounting and locking a second connecting piece on the assembly fixing hole, wherein the second connecting piece fixes the inserting part in the fixing part;

s4, installing and inserting a first connecting piece on the bottom plate, wherein the first connecting piece penetrates through the connecting hole to be connected with the first locking piece and locks the first connecting piece;

s5, repeating S4, and after the connecting devices are installed on the four connecting holes, carrying out S6;

s6, enabling the guide block to correspond to the guide groove, and enabling the annular limiting piece to correspond to the limiting groove;

s7, presetting an installation position on the facing head, installing the clamp on the facing head in a sliding manner, and locking the clamp by the facing head when the clamp moves to the installation position; in this embodiment, the method of locking the clamp by the facing head is prior art and will not be described herein in a repeated manner.

S8, installing a cutter in the clamping part, and if the cutter is installed in the first accommodating area, carrying out S9; if a cutter is installed in the second accommodating area, S10 is carried out; if a tool is installed in the third accommodating area, S11 is performed;

s9, enabling the cutter handle end of the cutter to correspond to the first avoidance groove, and enabling the cutter tip end of the cutter to extend out of the clamping part; attaching the side wall of the cutter to the resisting part; then adjusting the position of the cutter; and then, a third connecting piece is arranged in the cutter fixing hole corresponding to the first accommodating area and locked, and the cutter is fixed in the clamping part by the third connecting piece.

S10, enabling the cutter handle end of the cutter to correspond to the second avoidance groove, and enabling the cutter tip end of the cutter to extend out of the clamping part; attaching the side wall of the cutter to the resisting part; then adjusting the position of the cutter; and then, a third connecting piece is arranged in the cutter fixing hole corresponding to the second accommodating area and locked, and the cutter is fixed in the clamping part by the third connecting piece.

S11, enabling a cutter handle end of the cutter to correspond to the first accommodating area, enabling a cutter point end of the cutter to correspond to the second accommodating area, and enabling a cutter point end of the cutter to extend out of the clamping part; attaching the side wall of the cutter to the resisting part; then adjusting the position of the cutter; and then, a third connecting piece is arranged in the cutter fixing hole corresponding to the third accommodating area and locked, and the cutter is fixed in the clamping part by the third connecting piece.

Claims

1. The utility model provides an anchor clamps installs and uses on the boring machine, and the facing head of boring machine is equipped with the spout, the spout includes guide way and spacing groove, the spacing groove setting in one side of guide way and with the guide way intercommunication, the width of spacing groove is greater than the width of guide way, anchor clamps include knife rest and base, knife rest demountable installation on the base, its characterized in that: the base comprises a bottom plate and a fixed seat, and the fixed seat is arranged at the top of the bottom plate; an assembly hole is formed in the fixed seat and penetrates through the fixed seat and the bottom plate; the tool rest comprises a clamping part and an inserting part, one end of the inserting part is connected with the clamping part,

an assembly fixing hole is formed in the fixing seat along the radial direction of the assembly hole and communicated with the assembly hole; the second connecting piece penetrates through the assembly fixing hole to be in contact with the flat position and fix the inserting part in the assembly hole;

the two ends of the bottom plate are respectively provided with a connecting hole, the bottom of the bottom plate is outwards provided with a guide block in a protruding mode, and the guide block is arranged in the guide groove in a sliding mode; one connecting hole penetrates through the guide block; a connecting device penetrates through the connecting hole and comprises a first connecting piece and a first locking piece, and the first connecting piece penetrates through the connecting hole from the bottom of the bottom plate and is connected with the first locking piece; the peripheral wall of the first connecting piece is convexly provided with an annular limiting piece, and the annular limiting piece is arranged at one end of the first connecting piece, which is far away from the first locking piece; the annular limiting piece is arranged in the limiting groove in a sliding mode and limits the base along the axial direction of the assembling hole;

the clamping part comprises a first clamping piece, a second clamping piece and a blocking piece, the first clamping piece is arranged on one side of the clamping part, the second clamping piece is arranged on the other side of the clamping part, and the blocking piece is arranged between the first clamping piece and the second clamping piece;

an accommodating cavity arranged around the stop piece is formed between the first clamping piece and the second clamping piece, and the accommodating cavity comprises a first accommodating area, a second accommodating area and a third accommodating area; the first accommodating area is arranged on one side of the abutting piece, the second accommodating area is arranged on the other side of the abutting piece, and the third accommodating area is arranged at one end of the abutting piece and is communicated with the first accommodating area and the second accommodating area; the first clamping piece is provided with more than two cutter fixing holes, the first accommodating area, the second accommodating area and the third accommodating area are respectively communicated with the at least two cutter fixing holes, and the cutter fixing holes are provided with third connecting pieces for fixing cutters.

2. A clamp as claimed in claim 1, wherein: the assembly fixing hole is provided with internal threads, and the second connecting piece is a bolt.

3. A clamp as claimed in claim 1, wherein: the cutter fixing hole is provided with internal threads, and the third connecting piece is a bolt.

4. A clamp as claimed in claim 1, wherein: an avoiding part is connected between the clamping part and the inserting part, the avoiding part comprises a first avoiding piece and a second avoiding piece, the first avoiding piece is connected with the first clamping piece and the inserting part, the second avoiding piece is connected with the second clamping piece and the inserting part, and the blocking piece extends into the avoiding part and is connected with the first avoiding piece and the second avoiding piece; form first dodge groove and second dodge the groove between first dodge piece and second dodge the piece, first dodge the groove setting and keep off one side of piece and with first holding region intercommunication, the second dodge the groove setting and keep off the opposite side of piece and with second holding region intercommunication.

5. A clamp according to claim 4, wherein: the first avoidance part is connected with the connecting part between one end close to the inserting part and one end close to the inserting part of the second avoidance part, the connecting part is connected with the inserting part, and the abutting part is connected with the connecting part.

6. A clamp according to claim 5, wherein: one side of the connecting part close to the stop part is a plane.

7. A clamp according to claim 5, wherein: the connecting part is arranged in a protruding mode outwards along the vertical direction of the length direction of the inserting part.