CN214814930U

CN214814930U - Split type jack catch structure of lathe chuck

Info

Publication number: CN214814930U
Application number: CN202120883758.XU
Authority: CN
Inventors: 曾海波; 郑玉辉; 唐培强; 曾祥博
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-11-23
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a split type jack catch structure of lathe chuck for along chuck radial movement's jack catch base body and be used for moving the soft claw of chuck that presss from both sides tight work piece along with jack catch base body, a plurality of mating holes has been seted up to jack catch base body's top is vertical. Has the advantages that: the clamping jaw base body and the soft jaw of the chuck adopt a split design, and are combined together in a mode of additionally installing the locking screw, so that the clamping stability is favorably increased, the processing auxiliary time is reduced, and the processing precision and speed are improved; because the claw base body and the chuck soft claw adopt a split type design, a proper material can be selected according to the actual requirements of processing parts, for example, aluminum materials are adopted when thin-walled parts and the like are easily clamped and damaged, steel materials are adopted when the rough machining amount is large or longer parts are processed, the use flexibility when the workpieces are clamped is improved, the clamping stability is further convenient to increase, and the processing precision and speed are improved.

Description

Split type jack catch structure of lathe chuck

Technical Field

The utility model relates to a lathe auxiliary assembly field, concretely relates to split type jack catch structure of lathe chuck.

Background

Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises chuck body, activity jack catch and 3 parts of jack catch actuating mechanism, and the chuck is installed usually and is used on lathe, cylindrical grinder and internal grinder, also can cooperate with various indexing means for on milling machine and the drilling machine, but present activity jack catch adopts the design of integral type usually, and reverse side clamping is inefficiency, and the alignment time is of a specified duration, can not guarantee the accuracy of part position behind the centre gripping part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a split type jack catch structure of lathe chuck for solving above-mentioned problem, adopt split type design with jack catch base body and the soft claw of chuck, combine together through the mode of installing locking screw additional, be favorable to increasing the centre gripping stability, reduce processing auxiliary time, improve machining precision and speed, see the following explanation for details.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a split type jack catch structure of lathe chuck, the jack catch base body that is used for along the radial movement of chuck and the soft claw of chuck that is used for moving along with jack catch base body and pressing from both sides tight work piece, a plurality of mating holes have been seted up vertically at the top of jack catch base body;

the chuck soft claws are attached to the top surface of the claw base body and are vertically provided with a plurality of connecting holes, and the connecting holes are through holes in the vertical direction and are coaxially matched with the matching holes one by one;

and each group of the connection holes and the matching blocks for comparison are fixedly inserted with locking screws for stably connecting the chuck soft claw and the jaw base body.

Preferably, the positioning grooves are transversely formed in two sides of the bottom surface of the chuck soft jaw, positioning parts are convexly formed in two sides of the top surface of the jaw base body, and the positioning parts are vertically matched with the positioning grooves in a one-to-one up-and-down contrast mode.

Preferably, the middle part of the bottom surface of the chuck soft jaw is provided with a downward convex limiting part, the middle part of the top surface of the jaw base body is longitudinally provided with a limiting groove, and the limiting groove and the limiting part are vertically matched in a sliding manner.

Preferably, the number of the locking screws is two, and the specification of the locking screws is M8 × 20.

Preferably, the jaw base body is made of high-speed steel.

Preferably, the chuck soft claws are made of aluminum.

Preferably, the chuck soft claws are made of steel.

Adopt above-mentioned split type jack catch structure of machine tool chuck, because jack catch base body with the soft claw of chuck adopts split type design, can select suitable material according to the actual requirement of processing part, if processing thin wall spare etc. and easily press from both sides when hindering the work piece and adopt the aluminum product, the processing is opened thick greatly or is processed longer part and adopt steel, use flexibility when having promoted the clamping work piece, is convenient for increase clamping stability and improvement machining precision and speed, simultaneously because the soft claw of chuck can dismantle the change, then in the course of working, the soft claw of chuck can allow along with the work piece together processed, then can pass through the damaged mode replacement cutter of the soft claw of chuck is damaged, is favorable to prolonging the life of cutter, and changes the concrete operation of the soft claw of chuck does: all locking screws are sequentially screwed out, then the locking screws can be separated from each other, the claw base body and the soft chuck jaws are simple and easy to operate in a dismounting and replacing mode, the soft chuck jaws are convenient to replace, then the claw base body and the soft chuck jaws are designed in a split mode, the locking screws are combined together in an additional installation mode, the clamping stability is favorably improved, the processing auxiliary time is reduced, the processing precision and the processing speed are improved, and the size of a workpiece clamping part is selected to be 3-4mm smaller than the size of an actual clamping part as much as possible in order to improve the clamping precision of the soft chuck jaws, so that a workpiece is positioned at a main shaft rotation center when being clamped, and the requirements of the process size and the position precision of the machined surface of the workpiece are met.

Has the advantages that: 1. the clamping jaw base body and the soft jaw of the chuck adopt a split design, and are combined together in a mode of additionally installing the locking screw, so that the clamping stability is favorably increased, the processing auxiliary time is reduced, and the processing precision and speed are improved;

2. the jaw base body and the chuck soft jaw adopt a split design, so that a proper material can be selected according to the actual requirements of parts to be processed, for example, aluminum materials are adopted when thin-walled parts and other workpieces which are easy to clamp are processed, and steel materials are adopted when the rough amount is large or longer parts are processed, so that the use flexibility of the workpiece to be clamped is improved, the clamping stability is further improved, and the processing precision and speed are improved;

3. the claw base body and the chuck soft claw can be detached only after the locking screw is taken down, the dismounting and replacing mode is simple and easy to operate, and the chuck soft claw is convenient to replace.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall isometric view of the present invention;

figure 2 is a front cross-sectional view of the present invention from figure 1;

figure 3 is a left external view of figure 1 of the present invention;

fig. 4 is a top external view of fig. 1 of the present invention.

The reference numerals are explained below:

1. soft jaws of the chuck; 101. positioning a groove; 102. a limiting part; 103. connecting holes; 2. a jaw base body; 201. a positioning part; 202. a limiting groove; 203. a mating hole; 3. and locking the screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a split type jack catch structure of lathe chuck for along chuck radial movement's jack catch base body 2 with be used for along the jack catch base body 2 remove the chuck soft claw 1 of pressing from both sides tight work piece, preferably jack catch base body 2 cooperatees with the supporting ring flange of lathe, a plurality of mating holes 203 has vertically been seted up at the top of jack catch base body 2. The soft jaw 1 of chuck is attached 2 top surfaces of jack catch base body and the vertical a plurality of connecting holes 103 of having seted up, connecting hole 103 vertically be the through-hole and with the coaxial contrast of mating holes 203 one-to-one. And each group of the connection holes 103 and the matching blocks which are compared are fixedly inserted with locking screws 3 which are used for stably connecting the chuck soft jaw 1 and the jaw base body 2.

As a preferable scheme of the scheme, the positioning grooves 101 are transversely formed in two sides of the bottom surface of the soft chuck jaw 1, the positioning portions 201 are convexly formed in two sides of the top surface of the jaw base body 2, the positioning portions 201 are vertically matched with the positioning grooves 101 in a one-to-one up-and-down manner and are in vertical sliding fit, so that the soft chuck jaw 1 is longitudinally aligned when being combined with the jaw base body 2 in a manner that the positioning portions 201 are vertically matched with the positioning grooves 101, the positioning portion 102 protrudes from the middle of the bottom surface of the soft chuck jaw 1, the limiting groove 202 is longitudinally formed in the middle of the top surface of the jaw base body 2, the limiting groove 202 is vertically matched with the limiting portion 102 in a vertically sliding fit manner, and so that the soft chuck jaw 1 is transversely aligned when being combined with the jaw base body 2 in a manner that the limiting portion 102 is vertically matched with the limiting groove 202 in a sliding manner.

Locking screw 3's quantity is two, just locking screw 3's specification is M8 x 20, and preferred mating holes 203 is the screw thread blind hole, and connecting hole 103 is the counter bore, so sets up, is convenient for come the soft claw 1 of firm connection chuck and jack catch base body 2 of compressing tightly through locking screw 3, jack catch base body 2 is high-speed steel material, and preferred jack catch base body 2 carries out the heat and follows, so sets up, is convenient for prevent jack catch base body 2 at the in-process wearing and tearing that use repeatedly and influence the clamping precision.

The material of the soft jaw 1 of the chuck is aluminum, so the soft jaw is convenient to adapt to easily clamping and damaging workpieces such as thin-walled workpieces, the material of the soft jaw 1 of the chuck is steel, so the soft jaw is convenient to adapt to machining and opening large-thickness or machining long parts.

Adopt above-mentioned structure, because jack catch base body 2 with soft claw 1 of chuck adopts split type design, can select suitable material according to the actual requirement of processing part, adopt the aluminum product when easily pressing from both sides the wounded work piece such as processing thin wall spare, the processing is opened the thick volume and is big or process longer part and adopt steel, use flexibility when having promoted the clamping work piece, be convenient for increase clamping stability and improve machining precision and speed, simultaneously because soft claw 1 of chuck can dismantle the change, then in the course of working, soft claw 1 of chuck can allow along with the work piece together processing, then can pass through the damaged mode of soft claw 1 of chuck is replaced the cutter and is damaged, is favorable to prolonging the life of cutter, and changes the concrete operation of soft claw 1 of chuck does: all the locking screws 3 are sequentially screwed out, and then the jaw base body 2 and the soft chuck jaw 1 can be separated from each other, the dismounting and replacing modes are simple and easy to operate, the soft chuck jaw 1 is convenient to replace, and then the jaw base body 2 and the soft chuck jaw 1 are combined together in a split type design by additionally installing the locking screws 3, so that the clamping stability is improved, the processing auxiliary time is reduced, and the processing precision and speed are improved, and it should be noted that in order to improve the clamping precision of the soft chuck jaw 1, the size of a workpiece clamping part is selected to be 3-4mm smaller than the size of an actual clamping part as much as possible, so that a workpiece is positioned at the rotation center of a main shaft when being clamped, the requirements on the process size and the position precision of the processed surface of the workpiece are ensured, and in the actual processing process, the working main shaft of a ball mechanism is phi 43.5mm, in order to improve the clamping precision of the clamping jaws and the clamping position of the boring clamping jaws, the size of a clamping part is selected to be 3-4mm smaller than that of an actual clamping part as much as possible, the automatic centering function of the three-jaw chuck is utilized, a workpiece is positioned at the center of a clamp and the rotation center of a main shaft when clamped, the requirements of the process size and the position precision of the machined surface of the workpiece are met, and the clamping part clamped by the soft jaw 1 of the chuck is phi 40 mm.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a split type jack catch structure of lathe chuck for follow jack catch base body (2) of chuck radial movement and be used for moving the soft claw (1) of chuck that presss from both sides tight work piece along with jack catch base body (2), its characterized in that: the top of the jaw base body (2) is vertically provided with a plurality of matching holes (203);

the chuck soft claw (1) is attached to the top surface of the claw base body (2) and is vertically provided with a plurality of connecting holes (103), and the connecting holes (103) are through holes in the vertical direction and are coaxially matched with the matching holes (203) one by one;

and each group of the connection holes (103) and the matching holes are fixedly inserted with locking screws (3) which are used for stably connecting the chuck soft claw (1) and the claw base body (2).

2. The split jaw structure of a machine tool chuck according to claim 1, wherein: locating slot (101) have been seted up along transversely to the bottom surface both sides of the soft claw of chuck (1), location portion (201) have all been stood by the epirelief in the top surface both sides of jack catch base body (2), location portion (201) with locating slot (101) contrast from top to bottom one by one and vertical sliding fit.

3. The split jaw structure of a machine tool chuck according to claim 2, wherein: the middle of the bottom surface of the chuck soft claw (1) is provided with a downward protruding limiting part (102), the middle of the top surface of the claw base body (2) is longitudinally provided with a limiting groove (202), and the limiting groove (202) is vertically matched with the limiting part (102) in a sliding manner.

4. The split jaw structure of a machine tool chuck according to claim 3, wherein: the number of the locking screws (3) is two, and the specification of the locking screws (3) is M8 multiplied by 20.

5. The split jaw structure of a machine tool chuck according to claim 4, wherein: the jaw base body (2) is made of high-speed steel.

6. The split jaw structure of a machine tool chuck according to any one of claims 1 to 5, wherein: the chuck soft claw (1) is made of aluminum.

7. The split jaw structure of a machine tool chuck according to any one of claims 1 to 5, wherein: the chuck soft claw (1) is made of steel.