Positioning and clamping chuck

Abstract

The utility model provides a positioning and clamping chuck which comprises a chuck assembly, a chuck ring frame is arranged in the chuck assembly, and the inner side of the chuck ring frame is fixedly connected with three sets of clamping air cylinders used for controlling clamping of workpieces in a telescopic mode. Compared with the prior art, the clamping device has the advantages that the chuck assembly, the clamping fixing piece and the replacement contact pads are additionally arranged, the appropriate replacement contact pads are selected to be connected with the clamping fixing piece according to the specifications of workpieces to be clamped in batches, and the adjusting columns are made to move in the adjusting holes in a telescopic mode according to the specifications of the workpieces; according to the clamping device, the first connecting plate and the second connecting plate are arranged, the positioning studs are screwed to the inner sides of the corresponding positioning threaded holes, the clamping air cylinder is adjusted to be located at the position of the first connecting plate in the longest telescopic state, and then the maximum moving position of the clamping fixing piece is adjusted, so that the clamping stability can be improved; and the embedding seat and the embedding hole are embedded to complete the installation of the replacement contact pad, so that the replacement contact pad can be conveniently disassembled and assembled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to clamping chuck technical field, especially relate to a positioning clamping chuck. BACKGROUND

[0002] In the mechanical processing production according to different use demand, need to cut off the specific workpiece such as pipe, the traditional cutting is through manual fixing by artificial, and it exists the poor workpiece cutting accuracy and the greater security risk caused by the fixed force deficiency, therefore the modern mechanical production will help such as clamping chuck equipment, through clamping chuck pre-clamping fixed to workpiece, then using the cutting equipment of relevant workpiece cutting operation is carried out again.But the common clamping chuck in use its stroke and the moving distance of clamping part are limited by telescopic equipment in design, such as cylinder, it has fixed stroke, when the cutting of small diameter pipe appears, the limited stroke of clamping chuck may exist the problem of not clamping or not completely stable clamping, leading to the use range of clamping chuck is limited, cannot be applicable to the clamping and fixing of larger range of workpiece size, and in actual clamping use, because it involves the clamping use of different outer diameter workpiece, there may be the problem of small contact surface between arc clamping structure and pipe and the insufficient clamping stability of arc clamping structure contact surface due to the friction force reduction of long time use.

[0003] In view of the above, there is clamping chuck with insufficient clamping stability in use, so it is hoped that a new structure is proposed to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a positioning clamping chuck to solve the problems in the background art.

[0005] The utility model realizes the following technical scheme: a positioning clamping chuck, comprising: a chuck assembly, a chuck ring frame is arranged in the chuck assembly, three groups of clamping cylinders for telescopic control of workpiece clamping are fixedly connected to the inner side of the chuck ring frame, each group of clamping cylinders is fixedly connected to a group of adjusting seats at the end close to the center of the chuck ring frame, the adjusting seat is provided with an adjusting column for increasing the telescopic stroke at the end close to the center of the chuck ring frame, the adjusting column is fixedly connected to a connecting plate one for mounting clamping fixtures at the end close to the center of the chuck ring frame, the connecting plate one is provided with clamping fixtures for clamping and fixing workpieces at the end close to the center of the chuck ring frame, and the clamping fixtures are provided with replacement contact pads at the end close to the center of the chuck ring frame.

[0006] As a preferred implementation, the three sets of clamping cylinders are circumferentially equidistributed, the adjusting seat is provided with an adjusting hole on one side surface near one end of the chuck ring frame center, and the adjusting seat and the adjusting column are respectively provided with a set of and several sets of positioning screw holes on one side surface of the outer side surface.

[0007] As a preferred implementation, the inside of the positioning screw hole is provided with a positioning stud for fixing the position after the internal and external adjustment of the adjusting column, and the positioning stud is threadedly connected with the positioning screw hole.

[0008] As a preferred implementation, the adjusting column and the adjusting hole are movably embedded with each other, the several sets of positioning screw holes on the outer side surface of the adjusting column are linearly equidistributed, the adjusting column is adjusted by telescopic movement in the inside of the adjusting hole, and the positioning stud is screwed into the inside of the corresponding positioning screw hole for fixation.

[0009] As a preferred implementation, the clamping fixing part is provided with a second connecting plate for connecting and fixing, the first connecting plate and the second connecting plate are attached to each other and fixed by bolts, the first connecting plate and the second connecting plate are fixed by bolts, and the clamping fixing part can be independently disassembled.

[0010] As a preferred implementation, the clamping fixing part is further provided with a support ring seat for installing a replacement contact pad, and the support ring seat and the second connecting plate are fixedly connected through a connecting column;

[0011] The replacement contact pad is provided with a pad body, the pad body is provided with anti-skid lines near one end of the side surface of the chuck ring frame center for improving the friction between the pad body and the workpiece, the pad body in the replacement contact pad is in direct contact with the workpiece, and the clamping stability is improved through the effect of the anti-skid lines.

[0012] As a preferred implementation, the chuck ring frame is fixedly connected with two sets of symmetrically arranged support columns below, and the installation plate for installing and fixing the chuck assembly is fixedly connected below the support columns.

[0013] As a preferred implementation, the support ring seat is provided with several sets of embedded holes near one end of the side surface of the chuck ring frame center for conveniently disassembling and replacing the contact pad;

[0014] The pad body and the support ring seat are fixedly connected with embedded seats corresponding to the several sets of embedded holes at one end of the side surface of the attachment, the embedded seats are made of rubber material and are embedded with the embedded holes, the installation of the replacement contact pad is completed by embedding the embedded seat with the embedded hole, and the disassembly and assembly of the replacement contact pad are facilitated.

[0015] After the above technical solutions are adopted, the beneficial effects of the present application are as follows:

[0016] 1、By increasing chuck assembly, clamping fixed part and replacing contact pad, according to the batch to be clamped workpiece specification selects the appropriate replacement contact pad and clamping fixed part connection, and according to the workpiece specification makes the adjusting column telescopic movement in the adjusting hole, and makes the positioning screw column spin to the corresponding positioning screw hole inside, adjusts the position of the clamping cylinder in the longest telescopic state connecting plate one, and then adjusts the maximum moving position of the clamping fixed part, so as to improve the clamping stability.

[0017] 2、By increasing clamping fixed part and replacing contact pad, the installation of replacement contact pad is completed by embedding the embedding seat and embedding hole, which can facilitate the disassembly and assembly of replacement contact pad. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0019] Figure 1 It is a whole structure schematic diagram of the positioning and clamping chuck of the present application.

[0020] Figure 2 It is a structure schematic diagram of the chuck assembly in the positioning and clamping chuck of the present application.

[0021] Figure 3 It is a structure schematic diagram of the chuck assembly in the positioning and clamping chuck of the present application.

[0022] Figure 4 It is a structure schematic diagram of the clamping fixed part in the positioning and clamping chuck of the present application.

[0023] Figure 5 It is a structure schematic diagram of the replacement contact pad in the positioning and clamping chuck of the present application.

[0024] In the figure, 100-chuck assembly, 101-chuck ring frame, 102-clamping cylinder, 103-adjusting seat, 104-adjusting hole, 105-positioning screw hole, 106-positioning screw column, 107-adjusting column, 108-connection plate one, 109-supporting column, 110-mounting plate;

[0025] 200-clamping fixed part, 201-connection plate two, 202-supporting ring seat, 203-embedding hole;

[0026] 300-replacement contact pad, 301-pad body, 302-anti-skid pattern, 303-embedding seat. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figures 1 to 5 The utility model provides a kind of technical solutions: a positioning clamping chuck, comprising: chuck assembly 100, chuck assembly 100 is equipped with a chuck ring frame 101, chuck ring frame 101 inner side is fixedly connected with three groups of clamping cylinder 102 for telescopic control to workpiece clamping;

[0029] Each group of clamping cylinder 102 is fixedly connected with a group of adjusting seat 103 near the center end of chuck ring frame 101, adjusting seat 103 is equipped with adjusting column 107 for increasing telescopic stroke near the center end of chuck ring frame 101;

[0030] Adjusting column 107 is fixedly connected with the connecting plate one 108 for installing clamping fixing piece 200 near the center end of chuck ring frame 101, the connecting plate one 108 is equipped with clamping fixing piece 200 for clamping and fixing workpiece near the center end of chuck ring frame 101, and clamping fixing piece 200 is equipped with replacement contact pad 300 near the center end of chuck ring frame 101.

[0031] Three groups of clamping cylinder 102 are circumferentially equidistributed, adjusting hole 104 is formed in the side surface of adjusting seat 103 near the center end of chuck ring frame 101, and a group and a plurality of groups of positioning screw holes 105 are formed in the outer side surface of adjusting seat 103 and adjusting column 107 respectively.

[0032] Positioning screw column 106 for fixing the position after adjusting column 107 is adjusted is arranged in the inner side of positioning screw hole 105, and positioning screw column 106 is connected with positioning screw hole 105 in screw thread.

[0033] Adjusting column 107 and adjusting hole 104 are movably embedded, and the plurality of groups of positioning screw holes 105 formed in the outer side surface of adjusting column 107 are linearly equidistributed, so that adjusting column 107 is telescopically moved and adjusted in the inner side of adjusting hole 104, and positioning screw column 106 is rotated to be fixed in the inner side of corresponding positioning screw hole 105.

[0034] Clamping fixing piece 200 is equipped with connecting plate two 201 for connecting and fixing with connecting plate one 108, connecting plate one 108 and connecting plate two 201 are mutually pasted and fixed by bolt connection, connecting plate one 108 and connecting plate two 201 are fixed by bolt connection, and clamping fixing piece 200 can be independently disassembled.

[0035] The clamping fixing piece 200 is further provided with a support ring seat 202 for mounting the replacement contact pad 300, and the support ring seat 202 and the connecting plate two 201 are fixedly and integrally connected through a connecting column;

[0036] The replacement contact pad 300 is provided with a pad body 301, and the pad body 301 is provided with anti-skid lines 302 for improving friction with a workpiece near a center end side of the chuck ring frame 101, so that the pad body 301 in the replacement contact pad 300 is directly in contact with the workpiece, and the clamping stability is improved through the effect of the anti-skid lines 302.

[0037] The chuck ring frame 101 is fixedly connected with two groups of symmetrically arranged support columns 109 below, and the support columns 109 are fixedly connected with a mounting plate 110 for mounting and fixing the chuck assembly 100 below.

[0038] Please refer to Figures 1-5 , as the first embodiment of the utility model: first, the user can install and fix the chuck assembly 100 through the mounting plate 110, then select the appropriate replacement contact pad 300 and connect and fix it between the clamping fixing piece 200 according to the specification of the current batch of workpieces to be processed, adjust the adjusting column 107 to move in and out of the adjusting hole 104 according to the specification of the workpiece, and make the positioning stud 106 rotate to the corresponding positioning threaded hole 105 and fix it, adjust the position of the clamping fixing piece 200 under the maximum extension length of the clamping cylinder 102, secondly, the connecting plate one 108 and the connecting plate two 201 are fixedly connected by bolts, the clamping fixing piece 200 can be independently disassembled and assembled, the pad body 301 in the replacement contact pad 300 is directly in contact with the workpiece, and the clamping stability is improved through the effect of the anti-skid lines 302, so that the clamping stability can be improved.

[0039] The support ring seat 202 is provided with a plurality of groups of embedded holes 203 near a center end side of the chuck ring frame 101 for conveniently disassembling and assembling the replacement contact pad 300;

[0040] The pad body 301 is fixedly connected with an embedded seat 303 corresponding to the plurality of groups of embedded holes 203 at one end side of the adhesion position with the support ring seat 202, the embedded seat 303 is made of rubber material and is embedded with the embedded hole 203, so that the embedded seat 303 and the embedded hole 203 are embedded to complete the installation of the replacement contact pad 300.

[0041] Please refer to Figure 1 and Figures 4-5As a second embodiment of the utility model: based on the above first embodiment, the pad body 301 in the contact pad 300 directly contacts with the workpiece, the corresponding replacement contact pad 300 can be selected according to the model specification of the workpiece to be clamped to improve the clamping adaptability and further improve the clamping stability, and the replacement contact pad 300 and the clamping fixing part 200 are installed through the embedding seat 303 and the embedding hole 203 embedding, which can be conveniently replaced according to the wear degree of the pad body 301 in the later use, and the problem of insufficient friction caused by high wear degree is prevented.

[0042] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A positioning chucking chuck, comprising: The chuck assembly (100) is characterized in that: the chuck assembly (100) is provided with a chuck ring frame (101), and three groups of clamping cylinders (102) for telescopic control of workpiece clamping are fixedly connected to the inner side of the chuck ring frame (101); Each group of clamping cylinders (102) is fixedly connected to a group of adjusting seats (103) near one end of the center of the chuck ring frame (101), and the adjusting seat (103) is provided with an adjusting column (107) near one end of the center of the chuck ring frame (101) for increasing the telescopic stroke; The adjusting column (107) is fixedly connected to a connecting plate I (108) for mounting a clamping fixing part (200) near one end of the center of the chuck ring frame (101), the connecting plate I (108) is provided with a clamping fixing part (200) near one end of the center of the chuck ring frame (101) for clamping and fixing the workpiece, and the clamping fixing part (200) is provided with a replacement contact pad (300) near one end of the center of the chuck ring frame (101).

2. A positioning chuck as claimed in claim 1, characterized in that: The three groups of clamping cylinders (102) are circumferentially equidistributed, the adjusting seat (103) is provided with an adjusting hole (104) on one side near the center of the chuck ring frame (101), and the adjusting seat (103) and the adjusting column (107) are respectively provided with a group and a plurality of groups of positioning threaded holes (105) on one side of the outer side.

3. A positioning chuck as claimed in claim 2, characterized in that: The positioning threaded holes (105) are provided with positioning studs (106) inside for adjusting the position of the adjusting column (107) inside and outside, and the positioning studs (106) are threadedly connected with the positioning threaded holes (105).

4. A positioning chuck as claimed in claim 3, characterized in that: The adjusting column (107) and the adjusting hole (104) are movably embedded, and the plurality of groups of positioning threaded holes (105) provided on the outer side of the adjusting column (107) are linearly equidistributed.

5. A positioning chuck as claimed in claim 1, characterized in that: The clamping fixing part (200) is provided with a connecting plate II (201) for connecting and fixing with the connecting plate I (108), and the connecting plate I (108) and the connecting plate II (201) are mutually attached and fixed by bolts.

6. A positioning chuck as claimed in claim 5, characterized in that: The clamping fixing part (200) is also provided with a support ring seat (202) for mounting the replacement contact pad (300), and the support ring seat (202) and the connecting plate II (201) are integrally fixedly connected through a connecting column; The replacement contact pad (300) is provided with a pad body (301), and the pad body (301) is provided with anti-skid lines (302) on one side near the center of the chuck ring frame (101) for improving the friction between the workpiece.

7. A positioning chuck as claimed in claim 1, characterized in that: Two groups of symmetrical support columns (109) are fixedly connected below the chuck ring frame (101), and a mounting plate (110) for mounting and fixing the chuck assembly (100) is fixedly connected below the support column (109).

8. A positioning chuck as claimed in claim 6, characterized in that: The support ring seat (202) is provided with a plurality of groups of embedded holes (203) on one side near the center of the chuck ring frame (101) for conveniently disassembling and replacing the contact pad (300); The one end side surface fixed connection of the pad body (301) and the support ring seat (202) has the corresponding embedded seat (303) with several groups of embedded holes (203), the embedded seat (303) is made of rubber material and is embedded with embedded hole (203).

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