Auxiliary positioning device of lathe chuck

Abstract

The utility model discloses an auxiliary positioning device of a lathe chuck, which comprises a machine tool body, a working area and a chuck clamp arranged in the working area, and further comprises a sliding track which is arranged in the working area and can be folded or unfolded, and a telescopic positioning table which is folded or unfolded from the inside of the sliding track is arranged on the sliding track. The telescopic positioning table is provided with an adjusting device for driving the telescopic positioning table to centralize the extending part of the workpiece, and the telescopic positioning table can be unfolded or folded from the working area through the sliding track, so that the whole telescopic positioning table has a hiding function and does not occupy the space of the working area. The telescopic positioning table can be folded from the sliding rail to be matched with the hiding function of the sliding rail, and after being pulled out, the telescopic positioning table can be matched with a user to position and centralize the workpiece to a straighter state through the adjusting device. In addition, after positioning, the long-size workpiece can be directly machined through slow rotation of the chuck clamp, and the telescopic positioning table is provided with a positioning roller capable of allowing the workpiece to rotate.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary devices for machining machine tools, in particular to an auxiliary positioning device for a lathe chuck. Background Art

[0002] Lathes are divided into ordinary lathes and CNC lathes. Both are equipped with a chuck fixture for clamping the workpiece on the processing work area. The chuck fixture is rotated to cooperate with the tool to achieve the cutting of the workpiece. Since the cutting of the workpiece is achieved by rotation, the clamping of the workpiece position will greatly affect the accuracy of the workpiece size. Since there is no device for assisting the positioning of the workpiece, although the workpiece can be bitten when the chuck fixture clamps the workpiece, a certain degree of deviation is inevitable, causing the workpiece to vibrate or swing when rotating at high speed. For workpieces that require precision processing, the processing effect is very unsatisfactory, especially for the processing of longer workpieces.

[0003] Therefore, the auxiliary positioning device of the existing lathe chuck needs to be further improved. Utility Model Content

[0004] In view of the above-mentioned prior art, the technology to be realized by the utility model is: it can assist the clamping of the workpiece on the chuck fixture and reduce the error.

[0005] In order to achieve the above purpose, the utility model adopts the following scheme:

[0006] An auxiliary positioning device for a lathe chuck comprises a machine tool body, a working area and a chuck fixture arranged therein, and also comprises a sliding track arranged in the working area and capable of being folded or opened, a telescopic positioning platform which is folded or opened from the inside is arranged on the sliding track, and an adjusting device which drives the telescopic positioning platform to straighten the extended part of a workpiece is arranged on the telescopic positioning platform.

[0007] Furthermore, the sliding track in the utility model includes a tube groove arranged in the machine tool body and located below the chuck fixture, a slide plate that can move linearly and limit position is provided in the tube groove, a slide rail and a slide groove are respectively provided on the tube groove and the slide plate, and a plurality of balls are embedded between the slide rail and the slide groove.

[0008] Furthermore, a groove is arranged on the slide plate of the utility model, and the telescopic positioning platform is hinged on one side of the inner part of the groove.

[0009] Furthermore, the telescopic positioning platform in the utility model includes a rotating base hinged on one side of the groove, a telescopic sleeve and a telescopic part arranged therein are arranged on the rotating base, a roller support frame is arranged on the top of the telescopic part, and positioning rollers that can rotate at a fixed point are arranged at both ends of the top of the roller support frame.

[0010] Furthermore, a vertical groove is arranged on the telescopic sleeve in the utility model, a size scale is arranged on one side of the vertical groove, and a scale mark pointing to the size scale is arranged on the outer wall of the telescopic member and located in the vertical groove.

[0011] Furthermore, the adjusting device in the utility model includes a avoidance groove arranged on a side wall of the telescopic part, teeth are arranged on one side of the avoidance groove, a gear with meshing teeth is arranged in the telescopic sleeve and in the avoidance groove, and the gear is inserted into the outer wall of the telescopic sleeve through a rotating shaft and a screw handle is fixedly provided.

[0012] Furthermore, a hand handle is provided on the slide board of the utility model and is located near one end of the groove.

[0013] Furthermore, the groove in the utility model is provided with side grooves on both sides, and a push rod which can be supported on the side wall of the rotating base is hinged in the side groove.

[0014] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0015] The utility model can be opened or retracted from the working area through the sliding track, so that the whole has a hidden function and does not occupy the space of the working area. The telescopic positioning table can also be retracted from the sliding track to cooperate with the hiding function of the sliding track. After being pulled out, the user can use the adjustment device to position and straighten the workpiece to a straighter state. In addition, after positioning, long-sized workpieces can also be directly processed by slowly rotating the chuck fixture. The telescopic positioning table has a positioning roller setting for the workpiece to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the three-dimensional schematic diagrams of the utility model.

[0017] Figure 2 This is the second stereoscopic schematic diagram of the present utility model.

[0018] Figure 3 It is a three-dimensional analysis schematic diagram of the utility model.

[0019] Figure 4 It is a three-dimensional schematic diagram of the skateboard of the utility model.

[0020] Figure 5 It is a three-dimensional exploded schematic diagram of the telescopic positioning platform of the utility model.

[0021] Figure 6 It is a three-dimensional schematic diagram of the regulating device of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0023] like Figures 1 to 6 The auxiliary positioning device of a lathe chuck shown in the figure comprises a machine tool body 1, a working area 11 and a chuck fixture 12 arranged therein, and also comprises a sliding track 2 arranged in the working area 11 and can be folded or opened, a telescopic positioning platform 3 is arranged on the sliding track 2 and can be folded or opened from the inside, and an adjusting device 4 is arranged on the telescopic positioning platform 3 to drive it to straighten the extended part of the workpiece. The machine tool body can be a common lathe or a CNC lathe, and the working area is the processing area of ​​the machine tool body, including components such as a tool, a tool fixture, a chuck fixture, and a tool moving track. The sliding track in the technical solution is arranged on the machine tool body and is located below the chuck fixture, which can be inserted into the machine tool body to be hidden and folded, and is in the working area after opening. When in use, the sliding track is pulled out, and then the telescopic positioning platform is pulled out from the sliding track and the workpiece is placed on its two positioning rollers. The telescopic positioning platform is telescoped up and down by the adjusting device so as to gradually align the workpiece, and the chuck fixture is gradually clamped in the process, thereby achieving the purpose of reducing the installation error of the workpiece.

[0024] The sliding track 2 described in the utility model includes a pipe groove 21 arranged in the machine tool body 1 and located below the chuck fixture 12. A slide plate 22 capable of linear limited movement is arranged in the pipe groove 21. A slide rail 23 and a slide groove 24 are arranged on the pipe groove 21 and the slide plate 22, respectively. A plurality of balls are embedded between the slide rail 23 and the slide groove 24. The pipe groove is arranged in the machine tool body and connected to the working area. The slide plate is inserted into the pipe groove for installation and can be linearly moved to open or close. When in use, the slide plate should be pulled out to open, and when not in use, the slide plate should be pushed in to close and hide. There are balls between the slide rail and the slide groove to make the slide plate smoother when opening or closing.

[0025] The slide plate 22 of the utility model is provided with a groove 5, and the telescopic positioning platform 3 is hinged on one side of the inner part of the groove 5. The groove is used to install the telescopic positioning platform, and the groove is arranged on one side close to the pull-out end of the slide plate.

[0026] The telescopic positioning platform 3 described in the utility model includes a rotating base 31 hinged on one side of the inner groove 5, a telescopic sleeve 32 and a telescopic member 33 arranged therein are arranged on the rotating base 31, a roller support 34 is arranged on the top of the telescopic member 33, and positioning rollers 35 that can rotate at a fixed point are arranged at both ends of the top of the roller support 34. The rotating base is used to drive the entire telescopic positioning platform to rotate, the telescopic sleeve is fixed on the rotating base, and the telescopic member is movably inserted in the telescopic sleeve, and its up and down movement can be achieved by an adjustment device. The roller support on the top of the movable member can rotate two positioning rollers at a fixed point, so that the workpiece can rotate on it, and can support the workpiece upward until the workpiece is clamped by the chuck fixture. According to actual conditions, when the chuck rotates slowly, the two positioning rollers can not be separated from the workpiece, and the workpiece can be supported during cutting to keep it in a flat position, reduce vibration and swing, and is suitable for long-sized workpieces.

[0027] In the present invention, the telescopic sleeve 32 is provided with a vertical groove 6, a size scale 61 is provided on one side of the vertical groove 6, and a scale mark 62 pointing to the size scale 61 is provided on the outer wall of the telescopic member 33 and located in the vertical groove 6. The vertical groove allows the scale mark to be exposed, and the exposed scale mark can point to different size scales as the telescopic member is extended and retracted, so that people can identify and adjust.

[0028] The adjustment device 4 in the utility model includes a position-avoiding groove 41 arranged on a side wall of the telescopic member 33, a tooth 42 is arranged on one side of the position-avoiding groove 41, a gear 43 meshing with the tooth 42 is arranged in the telescopic sleeve 32 and in the position-avoiding groove 41, and the gear 43 is inserted through a rotating shaft to the outer wall of the telescopic sleeve 32 and fixed with a screw handle 44. The position-avoiding groove is used for the position-avoiding tooth and the gear, and the user rotates the screw handle to rotate the gear, and then the telescopic member is driven to extend and retract up and down through the tooth, thereby realizing the adjustment function.

[0029] A hand pull handle 7 is provided on the slide plate 22 described in the utility model and is located near one end of the groove 5. The hand pull handle is used to pull out the slide plate.

[0030] In the utility model, the groove 5 is provided with side grooves 8 on both sides, and a push rod 81 is hinged in the side groove 8 and can be pressed against the side wall of the rotating base 31. The push rod is used to keep the rotating base vertically upward to the slide plate. It can be folded in the side groove, or it can be rotated from the side groove and pressed against the rotating base.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An auxiliary positioning device for a lathe chuck, comprising a machine tool body (1), a working area (11) and a chuck fixture (12) arranged therein, characterized in that It also includes a sliding track (2) arranged in the working area (11) and capable of being folded or opened, a telescopic positioning platform (3) which is folded or opened from the inside of the sliding track (2) is arranged on the sliding track (2), and an adjusting device (4) which drives the telescopic positioning platform (3) to straighten the extended part of the workpiece is arranged on the telescopic positioning platform (3).

2. The auxiliary positioning device for a lathe chuck according to claim 1, characterized in that The sliding track (2) comprises a tube groove (21) arranged in the machine tool body (1) and located below the chuck fixture (12); a slide plate (22) capable of linear limited movement is arranged in the tube groove (21); a slide rail (23) and a slide groove (24) are respectively arranged on the tube groove (21) and the slide plate (22); and a plurality of balls are embedded between the slide rail (23) and the slide groove (24).

3. The auxiliary positioning device for a lathe chuck according to claim 2, characterized in that A groove (5) is provided on the slide plate (22), and the telescopic positioning platform (3) is hinged on one side inside the groove (5).

4. The auxiliary positioning device for a lathe chuck according to claim 3, characterized in that The telescopic positioning platform (3) comprises a rotating base (31) hinged to one side of the interior of the groove (5); a telescopic sleeve (32) and a telescopic member (33) arranged therein are arranged on the rotating base (31); a roller support frame (34) is arranged on the top of the telescopic member (33); and positioning rollers (35) that can rotate at a fixed point are arranged at both ends of the top of the roller support frame (34).

5. The auxiliary positioning device for a lathe chuck according to claim 4, characterized in that A vertical groove (6) is provided on the telescopic sleeve (32), a size scale (61) is provided on one side of the vertical groove (6), and a scale mark (62) pointing to the size scale (61) is provided on the outer wall of the telescopic member (33) and located in the vertical groove (6).

6. The auxiliary positioning device for a lathe chuck according to claim 4 or 5, characterized in that The adjusting device (4) comprises a position-avoiding groove (41) arranged on a side wall of the telescopic member (33), teeth (42) being arranged on one side of the position-avoiding groove (41), a gear (43) meshing with the teeth (42) being arranged in the telescopic sleeve (32) and in the position-avoiding groove (41), and the gear (43) is inserted through a rotating shaft to the outer wall of the telescopic sleeve (32) and is fixedly provided with a screw handle (44).

7. The auxiliary positioning device for a lathe chuck according to claim 3, characterized in that A hand handle (7) is provided on the slide plate (22) and is located at one end close to the groove (5).

8. The auxiliary positioning device for a lathe chuck according to claim 4, characterized in that Side grooves (8) are arranged on both sides of the groove (5), and a push rod (81) is hinged in the side groove (8) and can be abutted against the side wall of the rotating base (31).

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