Quick alignment device for two-way connector and three-way connector

Abstract

The utility model discloses a quick alignment device for a two-way connector and a three-way connector. The quick alignment device comprises a chuck main body, a clamping jaw driving mechanism and a movable clamping jaw fixed in a spiral groove of the chuck main body. The movable clamping jaw comprises a conventional clamping jaw body and two milling clamping jaw bodies machined on the basis of the conventional clamping jaw body. A milling surface is arranged at one end of each milling clamping jaw for clamping a part to be processed, an included angle between each milling surface and a certain side surface of each milling clamping jaw is 120 degrees, and the milling surfaces of the two milling clamping jaws are parallel in an assembly state. According to the utility model, the problem that the clamping jaws need to be respectively driven in each clamping process is solved, and the times of repeatedly correcting parts by operators in the machining process are reduced. While the part machining quality is ensured, the device has the remarkable characteristics of saving manpower, improving the machining efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, in particular to a device for quickly aligning two-way joints and three-way joints. BACKGROUND

[0002] For the machining of two-way joints and three-way joints of full machine, the joint shape is machined first, which aims to meet the part shape size requirements and provide the positioning surface and reference surface for turning.

[0003] The turning of the non-rotary joint body is usually clamped by a four-jaw chuck, but the four claws of the four-jaw chuck need to be driven separately when clamping the part, and it does not have the function of self-centering. After each four-jaw clamping is completed, the part needs to be corrected, so a lot of auxiliary time is wasted, the working hours are greatly increased, and the work efficiency is reduced. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a device for quickly aligning two-way joints and three-way joints, which comprises a chuck body, a claw driving mechanism and a movable claw.

[0005] The movable claw is fixed in the spiral groove of the chuck body.

[0006] The movable claw comprises a conventional claw and two milling claws machined on the basis of the conventional claw.

[0007] One end of the milling claw clamping the machined part has a milling surface.

[0008] The included angle between the milling surface and the side surface of the milling claw is 120°.

[0009] In the assembled state, the milling surfaces of the two milling claws are parallel.

[0010] Further, the milling surface and the side surface of the milling claw are adjacent surfaces.

[0011] Further, in the assembled state, the two milling claws are symmetrical about the lathe spindle.

[0012] Further, in the clamped state, the milling surface is in contact with the surface of the machined part.

[0013] Further, in the clamped state, the number of teeth engaged by the bottom racks of the two milling claws is the same.

[0014] Further, in the state where the conventional claw cannot clamp the machined part, a spacer is placed between the conventional claw and the machined part.

[0015] Further, the center of rotation of the machined part is coaxial with the center of the lathe spindle.

[0016] Further, in the assembled state, a positioning block is assembled on the lathe spindle.

[0017] The bottom of the machined part is fixed with the positioning block through bolts and locking nuts.

[0018] Further, the chuck body and the claw driving mechanism are the chuck body and the claw driving mechanism of a three-jaw chuck.

[0019] The technical effect of the utility model is self-evident, and the beneficial effects of the utility model are as follows:

[0020] The utility model solves the auxiliary time of driving the claw every time clamping, reduces the number of repeated correction of parts in the processing process of the operator, guarantees the part processing quality, and has the remarkable characteristics of saving manpower and improving processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a device clamping schematic diagram (not drawn chuck body and claw driving mechanism);

[0022] Figure 2 It is a three-view of a conventional claw;

[0023] Figure 2 (a) is the front view, (b) is the side view, and (c) is the top view;

[0024] Figure 3 It is a milling claw schematic diagram;

[0025] Figure 4 It is a machined part and positioning block assembly schematic diagram;

[0026] Figure 5 It is a two-way joint and three-way joint schematic diagram;

[0027] Figure 5 (a), (b), (d) are schematic diagrams of a plane of a two-way joint or a three-way joint, and (c) is a schematic diagram of a plane of a three-way joint.

[0028] In the figure: 1-active claw; 2-conventional claw; 3-milling claw; 301-milling surface; 302-some side surface of the milling claw; 4-pad; 5-positioning block; 6-machined part; 7-bolt; 8-locking nut. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with examples, but should not be understood as the above-mentioned subject range of the utility model is limited to the following examples. Without departing from the above-mentioned technical thought of the utility model, according to the ordinary technical knowledge and conventional means in the art, various substitutions and changes are made, which should be included in the protection scope of the utility model.

[0030] Example 1:

[0031] A two-way joint and three-way joint quick alignment device, including chuck main body, chuck jaw driving mechanism and movable chuck jaw 1.

[0032] The movable chuck jaw 1 is fixed in the spiral groove of the chuck main body.

[0033] Referring to Figure 1 , the movable chuck jaw 1 includes a conventional chuck jaw 2 and two milling chuck jaws 3 processed on the basis of the conventional chuck jaw 2.

[0034] One end of the milling chuck jaw 3 clamping the machined part 6 has a milling surface 301, referring to Figure 3 .

[0035] The included angle between the milling surface 301 and a side surface 302 of the milling chuck jaw is 120 °.

[0036] In the assembled state, the milling surfaces 301 of the two milling chuck jaws 3 are parallel.

[0037] Example 2:

[0038] The main structure of the embodiment is the same as that of example 1, further, referring to Figure 3 , the milling surface 301 and the side surface 302 of the milling chuck jaw are adjacent surfaces.

[0039] Example 3:

[0040] The main structure of the embodiment is the same as that of any one of examples 1-2, further, in the assembled state, the two milling chuck jaws 3 are symmetrical about the lathe main shaft.

[0041] Example 4:

[0042] The main structure of the embodiment is the same as that of any one of examples 1-3, further, referring to Figure 1 , in the clamping state, the milling surface 301 is attached to the surface of the machined part 6.

[0043] Example 5:

[0044] The main structure of the embodiment is the same as that of any one of examples 1-4, further, in the clamping state, the number of teeth engaged by the bottom rack of the two milling chuck jaws 3 is the same.

[0045] Example 6:

[0046] The main structure of this embodiment is the same as any one of embodiments 1-5, further, refer to Figure 1 In the state that the conventional chuck 2 cannot clamp the machined part 6, the cushion block 4 is placed between the conventional chuck 2 and the machined part.

[0047] Embodiment 7:

[0048] The main structure of this embodiment is the same as any one of embodiments 1-6, further, the rotation center of the machined part 6 is coaxial with the center of the lathe spindle.

[0049] Embodiment 8:

[0050] The main structure of this embodiment is the same as any one of embodiments 1-7, further, in the assembled state, the positioning block 5 is assembled on the lathe spindle. The blind hole is opened on the positioning block 5.

[0051] Refer to Figure 4 The bottom of the machined part 6 is fixed with the positioning block 5 through the bolt 7 and the locking nut 8.

[0052] Embodiment 9:

[0053] The main structure of this embodiment is the same as any one of embodiments 1-8, further, the chuck body and the chuck jaw driving mechanism are the chuck body and the chuck jaw driving mechanism of the three-jaw chuck.

[0054] Embodiment 10:

[0055] The main structure of this embodiment is the same as any one of embodiments 1-9, further, the machined part 6 is a two-way joint or a three-way joint.

[0056] Embodiment 11:

[0057] The main structure of this embodiment is the same as any one of embodiments 1-10, further, since the three-jaw chuck is composed of three parts of the chuck body, the movable chuck jaw and the chuck jaw driving mechanism, and the three chuck jaws are linked, the three-jaw chuck can automatically align the part, and there is no need to correct again after clamping. By changing the structure of the chuck jaw on the existing three-jaw chuck, the quick turning and clamping of the joint structure is realized.

[0058] Select any two of the chuck jaws on the three-jaw chuck, and press the positive jaw surface according to Figure 3Milling into a plane, and the angle between the milling surface and one of the two sides of the chuck is 120°, the two chucked surfaces are installed on the chuck and must be parallel, and the center of the main shaft of the device is axisymmetric, the first time the part is clamped, the chuck is corrected, that is, the modified chuck is completed. Before processing the part, prepare a certain amount of gasket adjustment, so that the center of the part being processed is coaxial with the center of the lathe main shaft, so as to achieve the purpose of quickly, stably and accurately clamping two-way joints and three-way joints.

[0059] The specific operation steps are as follows:

[0060] Step one: install the two chucks (such as Figure 3 ) and a conventional chuck (such as Figure 2 ) in the spiral groove of the chuck body (the milled surface of the two chucks after installation must be parallel, and the number of teeth engaged by the two chucks must be the same), and then fix the chuck by tightening the socket head bolt on the chuck.

[0061] Step two: adjust the screw four-hole hole of the wrench to rotate the small bevel gear, drive the large bevel gear to rotate, and the large bevel gear drives the spiral groove to rotate, and the spiral groove drives the chuck to rotate, so that the three chucks are close to the center or exit.

[0062] Then adjust the number of teeth of the conventional chuck that is clamped according to the processed part (if there is no tooth number that can just position the part, a gasket can be milled for positioning), until the three chucks reach the appropriate opening for clamping the processed part.

[0063] Finally, insert the positioning block provided by the machine tool itself into the main shaft, and position the bottom of the processed part (such as Figure 4 ) by adjusting the length of the adjusting bolt and locking the nut.

[0064] Complete the above step two special device clamping of semi-processed part blank, and the subsequent part processing can achieve the effect of quick and stable clamping.

Claims

1. A device for quick alignment of two-way and three-way connectors, characterized in that: It includes the chuck body, the chuck drive mechanism and the movable chuck (1); The movable jaw (1) is fixed in the spiral groove of the chuck body; The movable jaw (1) includes a conventional jaw (2) and two milled jaws (3) that are machined based on the conventional jaw (2); The milling jaw (3) has a milling surface (301) at one end where it clamps the workpiece (6); The angle between the milling surface (301) and one side (302) of the milling jaw is 120°; In the assembled state, the milling surfaces (301) of the two milling jaws (3) are parallel.

2. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: The milling surface (301) is adjacent to one side (302) of the milling chuck.

3. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: In the assembled state, the two milling jaws (3) are symmetrical about the lathe spindle.

4. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: In the clamped state, the milled surface (301) is in contact with the surface of the workpiece (6).

5. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: In the clamped state, the number of teeth engaged by the bottom racks of the two milling jaws (3) is the same.

6. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: When the conventional jaws (2) are unable to clamp the workpiece (6), a pad (4) is placed between the conventional jaws (2) and the workpiece.

7. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: The rotation center of the workpiece (6) is coaxial with the center of the lathe spindle.

8. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: In the assembled state, a positioning block (5) is mounted on the lathe spindle; the positioning block (5) is provided with a blind hole; The bottom of the workpiece (6) is fixed to the positioning block (5) by bolts (7) and locking nuts (8).

9. The device for quick alignment of two-way and three-way connectors according to claim 1, characterized in that: The chuck body and jaw drive mechanism are those of a three-jaw chuck.

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