CN201079846Y

CN201079846Y - Automatic broaching tool clamping device

Info

Publication number: CN201079846Y
Application number: CNU2007201130154U
Authority: CN
Inventors: 林绿高
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-09
Filing date: 2007-08-09
Publication date: 2008-07-02
Anticipated expiration: 2017-08-09

Abstract

The utility model discloses an automatic pulling holding device which includes a permanent seat (1) and a shaft body (2) which is fixedly connected with the permanent seat (1); the shaft body (2) is respectively and internally provided with an axial channel (22) and a transverse slideway (21); the axial channel (22) and the transverse slideway (21) which are communicated with each other respectively pass through the shaft body (2), the outer surfaces of a slide bushing (3) and the shaft body (2) are connected with each other in a sliding way; the slide bushing (3) is connected with a lifting mechanism (6) by a pulling claw (5); the slideway (21) is internally provided with a fixture block (4) which is connected with the slideway in a sliding way, and a transverse groove (31) which is meshed with the fixture block (4) is positioned in the slide bushing (3). The automatic pulling holding device of the utility model can easily and safely realize to clamp and disassemble a broach and ensure the broach to be effectively clamped.

Description

A kind of automatic tool-broaching clamping device

Technical field

The utility model relates to a kind of automatic tool-broaching clamping device, particularly a kind of automatic tool-broaching clamping device that is applicable to broaching machine.

Background technology

Broaching machine is the widely used a kind of operated implement of Mechanical Manufacturing Enterprises, and broaching machine is provided with the broaching tool clamping device that can realize fixed cutting tool.Because the special technological reason of broaching machine, when some workpiece of processing, broaching tool needs frequent clamping and unloads; Therefore when the above-mentioned workpiece of processing, adopt the automatic tool-broaching clamping device.At present, existing automatic tool-broaching clamping device is that spring drives.In this kind broaching tool clamping device when work,, after running into workbench or being arranged on block on the workbench, spring just is compressed and the broaching tool clamping device can be opened; In like manner, after leaving workbench or leaving the block that is arranged on the workbench, rely on the tension force of spring just the broaching tool clamping device can cut out.Therefore the spring of above-mentioned broaching tool clamping device must be provided with certain pretightning force ability operate as normal; And, therefore can the geometric accuracy of broaching machine be impacted because the collision frequency of broaching tool clamping device and workbench is very high.In addition, because the installation site of automatic tool-broaching clamping device on broaching machine is not easy to observe, therefore the machine operation person can't be not easy to realize Machinery Tool Automation control from intuitively judging whether the automatic tool-broaching clamping device is firm with the broaching tool clamping, and this just exists great potential safety hazard.

The utility model content

The technical problems to be solved in the utility model provides a kind of safe, practical automatic tool-broaching clamping device.

In order to solve the problems of the technologies described above, the utility model provides a kind of automatic tool-broaching clamping device, comprise holder, axis body and holder are fixedly linked, be respectively equipped with axial passage and horizontal slideway in the axis body, passage that is interconnected and slideway connect axis body respectively, and sliding sleeve slides with the outer surface of axis body and links to each other, and sliding sleeve links to each other with hoisting mechanism by pulling claw; Be provided with the fixture block that links to each other with its slip in the slideway, be provided with the horizontal groove that matches with fixture block in the sliding sleeve.

Improvement as automatic tool-broaching clamping device of the present utility model: on sliding sleeve or pulling claw, be provided with the stroke positioner.

Automatic tool-broaching clamping device of the present utility model can be realized the clamping of broaching tool easily, safely and unloads, and has guaranteed the effective clamping to broaching tool.Use automatic tool-broaching clamping device of the present utility model, can not produce bump, therefore can the precision of platen not impacted, thereby guaranteed the accuracy of lathe work workbench.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of automatic tool-broaching clamping device of the present utility model;

Fig. 2 is the work schematic diagram of Fig. 1 in clamp position;

Fig. 3 is the work schematic diagram of Fig. 1 at releasing orientation.

The specific embodiment

In Fig. 1～Fig. 3, all omission has shown the fixture block 4 that is positioned at left half side slideway 21.

Fig. 1 has provided a kind of automatic tool-broaching clamping device, comprises holder 1, is provided with through hole 11 in this holder 1, and the latter half of axis body 2 places in the above-mentioned through hole 11; Rely on locking nut 12, axis body 2 realizations are fixedly linked with holder 1.

In axis body 2, be respectively equipped with axial passage 22 and horizontal slideway 21, the perforation axis body 2 that passage 22 is axial, the perforation axis body 2 that slideway 21 is horizontal; Passage 22 and slideway 21 are interconnected.Left half side and right half side 1 fixture block 4 that respectively is provided with in slideway 21, fixture block 4 slide with the inner surface of slideway 21 and link to each other.For make fixture block 4 can be smoothly in slideway 21 outwards the axial line of axis body 2 (promptly away from) slide, slideway 21 has outwards designed very little gradient by the center, promptly slideway 21 is slightly high near the axial line place of axis bodies 2, slideway 21 is lower slightly away from the axial line place of axis body 2.Sliding sleeve 3 is enclosed within the outside of axis body 2, and sliding sleeve 3 and linking to each other that the outer surface of axis body 2 slides up and down.

Be provided with horizontal groove 31 in the sliding sleeve 3, the cross sectional shape that dissects along axis direction of groove 31 is equal to the cross sectional shape of slideway 21; Therefore when groove 31 and slideway 21 were in same plane, fixture block 4 can partly slip in the groove 31.One end of pulling claw 5 links to each other with the outer surface of sliding sleeve 3, the other end links to each other with hoisting mechanism 6; Therefore hoisting mechanism 6 can move up and down by pulling claw 5 drive sliding sleeves 3.This hoisting mechanism 6 can be selected hydraulic power supply or the like for use.

Be provided with the stroke positioner on pulling claw 5, this trip positioner comprises sensor block 71 and support 72, and sensor block 71 is fixed on the pulling claw 5, and support 72 is fixed on the broaching machine.Support 72 is provided with upper limit plane 73 and lower limit plane 74.Upper limit plane 73 can be done the adjusting of height up and down with respect to support 72, and is same, and lower limit plane 74 also can be done the adjusting of height up and down with respect to support 72.Sensor block 71 is between upper limit plane 73 and lower limit plane 74, and promptly sensor block 71 can move between upper limit plane 73 and lower limit plane 74.

Be provided with position limitation protection face 8 in the upper end of axis body 2, sliding sleeve 3 is positioned at the below of position limitation protection face 8.Promptly when moving on the sliding sleeve 3 when contacting, moved on just can't be again with position limitation protection face 8.Therefore, though stroke positioner generation maloperation, thus sliding sleeve 3 moves on also can be not unrestrictedly and causes slipping away axis body 2.Equally, the latter half owing to axis body 2 links to each other with holder 1; Therefore, when sliding sleeve 3 is displaced downwardly to when contacting with holder 1, just can't move down again; Even so just guaranteed stroke positioner generation maloperation, thereby sliding sleeve 3 can unrestrictedly not move down yet and causes slipping away axis body 2.

As shown in Figures 2 and 3, automatic tool-broaching clamping device of the present utility model is installed on the broaching machine during real work, regulates upper limit plane 73 and the height and position of lower limit plane 74 on support 72 respectively.When making the corresponding upper limit plane 73 of sensor block 71, slideway 21 is sealed by the inwall of sliding sleeve 3; When the corresponding lower limit plane 74 of sensor block 71, slideway 21 faces the groove 31 of sliding sleeve 3.The concrete course of work is as follows:

1, clamp position: hoisting mechanism 6 drives sliding sleeve 3 by pulling claw 5 and slides on the outer surface of axis body 2; When sensor block 71 was run into upper limit plane 73, sliding sleeve 3 stopped to go up sliding.This moment groove 31 with slideway 21 stagger in the horizontal direction (promptly not on same horizontal plane).Therefore, under the extruding of sliding sleeve 3 inwalls, fixture block 4 moves inward (i.e. the axial line of close axis body 2), and this moment, fixture block 4 admission passages 22 interior parts just in time were positioned at the groove location of broaching tool 9, therefore limit the motion of broaching tool 9 in passage 22, realized the clamping of broaching tool 9.

2, releasing orientation: hoisting mechanism 6 drives the outer surface downslide of sliding sleeve 3 along axis body 2 by pulling claw 5; When sensor block 71 was run into lower limit plane 74, sliding sleeve 3 stopped gliding.At this moment, the groove 31 in the sliding sleeve 3 is on the same horizontal plane with slideway 21.The fixture block 4 that is positioned at slideway 21 just outwards moves the axial line of axis body 2 (promptly away from), and this moment, fixture block 4 just no longer was positioned at passage 22, and therefore whole passage 22 keeps unimpeded.At this moment, broaching tool 9 can free in and out passage 22, realizes the dress cutter and unloads cutter.

At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.

Claims

1. automatic tool-broaching clamping device, it is characterized in that: comprise holder (1), axis body (2) is fixedly linked with holder (1), be respectively equipped with axial passage (22) and horizontal slideway (21) in the axis body (2), passage that is interconnected (22) and slideway (21) connect axis body (2) respectively, sliding sleeve (3) slides with the outer surface of axis body (2) and links to each other, and described sliding sleeve (3) links to each other with hoisting mechanism (6) by pulling claw (5); Be provided with the fixture block (4) that links to each other with its slip in the described slideway (21), be provided with the horizontal groove (31) that matches with fixture block (4) in the described sliding sleeve (3).

2. automatic tool-broaching clamping device according to claim 1 is characterized in that: described sliding sleeve (3) or pulling claw (5) are provided with stroke positioner (7).