Auxiliary spindle box adjusting mechanism of double-spindle double-tool-turret numerical control machine tool

Abstract

The utility model discloses an auxiliary spindle box adjusting mechanism of a double-spindle double-tool-turret numerical control machine tool. The adjusting mechanism is characterized by comprising a front-back precision adjusting mechanism for adjusting the precision of an auxiliary spindle upper body and a spindle unit in the front-back direction. Through the arrangement of the auxiliary main shaft adjusting pad in the device, the height error precision of the main shaft unit and another main shaft unit can be adjusted, and the angle inclination of the main shaft unit in the vertical direction can be adjusted through the size difference value between the adjusting pads; the front-back precision adjusting mechanism is used for adjusting the precision of the auxiliary main shaft upper body, the precision of the main shaft unit and the precision of the other main shaft unit in the front-back direction, and meanwhile the positioning pin is arranged so that the axial position of the auxiliary main shaft upper body can be positioned when the auxiliary main shaft upper body is adjusted.

Description

Technical Field

[0001] The utility model relates to a double-spindle double-turret machine tool, in particular to a sub-spindle box adjustment mechanism of a double-spindle double-turret numerically controlled machine tool. Background Art

[0002] The dual-spindle dual-turret turning and milling machine tool is a highly efficient and multifunctional CNC machine tool. It adopts a dual-turret layout and uses one device to complete the processing of multiple processes, thereby improving production efficiency and processing quality, improving production efficiency, and meeting the needs of high-precision processing. The dual-spindle dual-turret CNC machine tool has very high requirements on the position, height, coaxiality, etc. between the spindle units on the two spindle boxes when installing the spindle box. Once the installation accuracy of the two spindle units deviates, it will affect the processing accuracy of the workpiece. Therefore, there are very high requirements on the installation accuracy of the spindle unit during assembly.

[0003] At present, when assembling the spindle box, the first spindle box is first fixedly installed on the machine tool, and then the installation position of the sub-spindle box is adjusted according to the installation position of the first spindle box. Therefore, it is necessary to propose an adjustment mechanism that can accurately and easily adjust the installation accuracy of the sub-spindle box. To this end, a sub-spindle box adjustment mechanism for a dual-spindle dual-turret CNC machine tool is proposed. Utility Model Content

[0004] The utility model aims to solve the above problems and proposes a sub-spindle box adjustment mechanism for a double-spindle double-turret CNC machine tool.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solution: a sub-spindle box adjustment mechanism for a dual-spindle dual-turret CNC machine tool, which is characterized by comprising a spindle unit, a sub-spindle upper body, a sub-spindle lower body and an adjustment mechanism; the spindle unit is installed on the sub-spindle upper body;

[0006] The adjustment mechanism includes a front-to-back precision adjustment mechanism for adjusting the precision of the auxiliary spindle upper body and the spindle unit in the front-to-back direction;

[0007] The front-to-back precision adjustment mechanism comprises a positioning pin installed on the lower body of the sub-spindle to limit the left and right position of the upper body of the sub-spindle when the upper body of the sub-spindle is adjusted for front-to-back precision, a guide groove provided on the upper body of the sub-spindle to match the positioning pin, and an adjustment block installed on the lower body of the sub-spindle;

[0008] The invention also includes a pulling-top associated mechanism arranged on the upper body of the sub-spindle and the adjustment block for driving the upper body of the sub-spindle to move. The pulling-top associated mechanism includes a through hole and a threaded hole arranged on both sides of the upper body of the sub-spindle, a tightening threaded hole arranged on the adjustment block corresponding to the position of the through hole, a tightening member installed in the threaded hole and in contact with the adjustment block at one end, and a pulling member slidably installed in the through hole and threadedly connected to the tightening threaded hole on the adjustment block.

[0009] Further preferably, the adjustment mechanism further comprises a sub-spindle adjustment pad installed between the sub-spindle upper body and the sub-spindle lower body for adjusting the height and angular position of the spindle unit and the sub-spindle upper body.

[0010] Further preferably, the sub-spindle adjustment pad comprises one or more adjustment pads arranged between the sub-spindle upper body and the sub-spindle lower body.

[0011] Further preferably, circular deep holes with a diameter larger than that of the positioning pin are provided on both sides of the guide groove to facilitate the disassembly and assembly of the auxiliary spindle upper body.

[0012] Further preferably, the auxiliary spindle upper body is fixedly mounted on the auxiliary spindle lower body by bolts.

[0013] Further preferably, the sub-spindle adjustment pad is also provided with a U-shaped groove.

[0014] Further preferably, the through holes and threaded holes are both countersunk holes.

[0015] Further preferably, the jacking member is a jacking bolt or a jacking screw or a jacking screw; the pulling member is a pulling bolt or a pulling screw or a pulling screw.

[0016] The beneficial effects of the utility model are as follows: by setting the sub-spindle adjustment pad in the device, the height error accuracy between the spindle unit and another spindle unit can be adjusted, and the angle inclination of the spindle unit in the up and down direction can be adjusted by adjusting the size difference between the pads;

[0017] The front and rear precision adjustment mechanism is used to adjust the precision of the sub-spindle upper body and the main spindle unit and another main spindle unit in the front and rear directions. At the same time, the positioning pin is set to position the axial position of the sub-spindle upper body when adjusting the sub-spindle upper body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0019] Attached Figure 2 It is a partial structural schematic diagram of the utility model;

[0020] Attached Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Attached Figure 4 This utility model is attached Figure 3 A partial enlarged structural diagram of the positioning pin in FIG.

[0022] Legend: 1. Spindle unit; 2. Sub-spindle upper body; 3. Sub-spindle lower body; 4. Sub-spindle adjustment pad; 5. Front and rear precision adjustment mechanism; 51. Positioning pin; 52. Guide groove; 53. Adjustment block; 54. Through hole; 55. Threaded hole; 56. Tensioning threaded hole; 57. Clamping piece; 58. Pulling piece; 59. Circular deep hole. DETAILED DESCRIPTION

[0023] Next, we will further explain the sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool described in the utility model in conjunction with the accompanying drawings.

[0024] See also Figure 1-4 As shown in the figure, the sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool is characterized in that it includes a spindle unit 1, a sub-spindle upper body 2, a sub-spindle lower body 3 and an adjustment mechanism; the spindle unit 1 is installed on the sub-spindle upper body 2; through the setting of the sub-spindle adjustment pad 4 in the device, it can be used to adjust the height error accuracy of the spindle unit 1 and another spindle unit, and the angular inclination of the spindle unit 1 in the up and down directions can be adjusted by adjusting the size difference between the pads;

[0025] The adjustment mechanism comprises a sub-spindle adjustment pad 4 installed between the sub-spindle upper body 2 and the sub-spindle lower body 3 for adjusting the height and angular position of the spindle unit 1 and the sub-spindle upper body 2, and a front-to-back precision adjustment mechanism 5 for adjusting the front-to-back precision of the sub-spindle upper body 2 and the spindle unit 1; the front-to-back precision adjustment mechanism 5 is used to adjust the precision of the sub-spindle upper body 2 and the spindle unit 1 and another spindle unit in the front-to-back direction, and the positioning pin 51 is used to position the axial position of the sub-spindle upper body 2 when adjusting the sub-spindle upper body 2;

[0026] The sub-spindle adjustment pad 4 comprises one or more adjustment pads arranged between the sub-spindle upper body 2 and the sub-spindle lower body 3; when four separate adjustment pads are used, the four adjustment pads are installed at four corners, and when adjusting the height accuracy error and the angle tilt, the height and the angle tilt can be adjusted by applying the tightening force of the bolts at the corresponding positions to adjust the deformation of the position adjustment pad;

[0027] The front-to-back precision adjustment mechanism 5 comprises a positioning pin 51 installed on the sub-spindle lower body 3 to limit the left and right position of the sub-spindle upper body 2 when the front-to-back precision adjustment is performed, a guide groove 52 provided on the sub-spindle upper body 2 and adapted to the positioning pin 51, and an adjustment block 53 installed on the sub-spindle lower body 3; through the setting of the positioning pin 51 and the guide groove, the front-to-back movement of the sub-spindle upper body 2 is guided when the front-to-back position adjustment is performed, and at the same time, the axial position of the sub-spindle upper body 2 is limited, and the positioning pin 51 is arranged in a circular shape, and when the sub-spindle upper body 2 is adjusted, the angle line of the sub-spindle upper body 2 can also be adjusted to enable it to swing.

[0028] The pull-up associated mechanism is also provided on the sub-spindle upper body 2 and the adjustment block 53 for driving the sub-spindle upper body 2 to move. The pull-up associated mechanism includes through holes 54 and threaded holes 55 provided on both sides of the sub-spindle upper body 2, tightening threaded holes 56 provided on the adjustment block 53 and corresponding to the positions of the through holes 54, a tightening member 57 installed in the threaded hole 55 and in contact with the adjustment block 53 at one end, and a pulling member 58 slidably installed in the through hole 54 and threadedly connected to the tightening threaded hole 56 on the adjustment block 53; when adjusting the front and rear position of the sub-spindle upper body 2, the tightening member 57 or the pulling member 58 can be used for adjustment; by providing the pull-up associated mechanism, the sub-spindle upper body 2 can be adjusted, and after the adjustment is completed, the position of the sub-spindle upper body 2 can be strengthened and fixed to prevent displacement;

[0029] The said jacking member 57 is a jacking bolt or a jacking screw or a jacking screw; the said pulling member 58 is a pulling bolt or a pulling screw or a pulling screw;

[0030] When the pressing member 57 is used as a driving member, the pressing member 57 on the other side is first screwed to move it backwards so that there is a certain space between the end of the pressing member 57 and the adjusting block 53, and at the same time, the pulling member 58 is disconnected from the adjusting block 53 or a certain moving distance is made between the head of the pulling member 58 and the end of the countersunk hole, and then the pressing member 57 on the adjusting side is screwed by a tool, and the pressing member 57 forms a thrust on the adjusting block 53 under the threaded cooperation with the threaded hole 55. After receiving the thrust, the adjusting block 53 reacts the force to the pressing member 57, and the pressing member 57 drives the sub-spindle upper body 2 to move backwards for adjustment. When the position accuracy adjustment is completed, the other pressing member 57 is screwed until its end is pressed against the adjusting block 53, and then the other two pulling members 58 are moved and screwed until the two pulling members 58 are matched with the tightening threaded holes 56 on the adjusting block 53 and tightened to complete the front and rear position accuracy adjustment of the sub-spindle upper body 2 and the spindle unit 1.

[0031] When the pulling member 58 is used as the driving member, the tightening member 57 is first screwed so that the end of the tightening member 57 and the adjustment block 53 have a certain moving distance, and then the pulling member 58 on the other side is screwed so that the head of the pulling member 58 on the other side and the end of the countersunk hole have a certain moving distance, and then the pulling member 58 on the adjustment side is screwed by the tool, and the pulling member 58 drives the pulling member 58 to move through the threaded cooperation with the tightening threaded hole 56 on the adjustment block 53. During the movement, the head of the pulling member 58 contacts the end of the countersunk hole and drives the sub-spindle upper body 2 to move and adjust. After the adjustment is completed, the other pulling member 58 is screwed to tighten the adjustment block 53 and the sub-spindle upper body 2, and then the other two tightening members 57 are screwed in turn until the tightening member 57 presses the adjustment seat to complete the front and rear position accuracy adjustment of the sub-spindle upper body 2 and the spindle unit 1.

[0032] In one embodiment, circular deep holes 59 with a diameter larger than that of the positioning pin 51 are provided on both sides of the guide groove 52 to facilitate the disassembly and assembly of the sub-spindle upper body 2; through the provision of the circular deep holes 59, the positioning pin 51 is placed in the circular deep holes 59 when the sub-spindle upper body 2 is disassembled and assembled, so that the circular deep holes 59 on the sub-spindle upper body 2 are aligned with the positioning pin 51, thereby ensuring assembly efficiency and avoiding collision and damage caused by deviation between the positioning pin 51 and the guide groove 52.

[0033] In one embodiment, the sub-spindle upper body 2 is fixedly mounted on the sub-spindle lower body 3 by bolts.

[0034] In one embodiment, the sub-spindle adjustment pad 4 is further provided with a U-shaped groove.

[0035] In one embodiment, the through hole 54 and the threaded hole 55 are both countersunk holes.

[0036] The adjustment and installation process of the sub-spindle of the utility model is as follows: first, the sub-spindle upper body 2 is preliminarily installed on the sub-spindle lower body 3 by means of a hoisting device, and during installation, the circular deep hole 59 on the sub-spindle upper body 2 corresponds to the position of the positioning pin 51, so that the positioning pin 51 extends into the circular deep hole 59;

[0037] Then, the sub-spindle upper body 2 and the sub-spindle lower body 3 are preliminarily connected by bolts but are not tightened, so that the sub-spindle upper body 2 and the sub-spindle lower body 3 can be adjusted after being connected;

[0038] Then, one end of the pulling member 58 is passed through the through hole 54 and preliminarily connected to the tightening threaded hole 56 on the adjusting block 53, and the pressing member 57 is connected to the threaded hole 55, but the end thereof does not contact the adjusting block 53;

[0039] The front and rear positions of the secondary spindle upper body 2 are detected by a measuring instrument, and according to the detection result, the threaded engagement between the pulling members 58 on both sides and the adjustment block 53 is driven by the tool to drive the secondary spindle upper body 2 to perform fine position adjustment;

[0040] During adjustment: when the pressing member 57 is used as a driving member, firstly, the pressing member 57 on the other side is screwed to move it backwards, so that there is a certain space between the end of the pressing member 57 and the adjusting block 53, and at the same time, the pulling member 58 is disconnected from the adjusting block 53 or a certain moving distance is made between the head of the pulling member 58 and the end of the countersunk hole, and then the pressing member 57 on the adjusting side is screwed by a tool, and the pressing member 57 forms a thrust on the adjusting block 53 under the cooperation with the thread of the threaded hole 55. After receiving the thrust, the adjusting block 53 reacts the force to the pressing member 57, and the pressing member 57 drives the sub-spindle upper body 2 to move backwards for adjustment. When the position accuracy adjustment is completed, the other pressing member 57 is screwed until its end is pressed against the adjusting block 53, and then the other two pulling members 58 are moved and screwed until the two pulling members 58 are matched with the tightening threaded holes 56 on the adjusting block 53 and tightened to complete the front and rear position accuracy adjustment of the sub-spindle upper body 2 and the spindle unit 1.

[0041] When the pulling member 58 is used as the driving member, the pressing member 57 is first screwed to make the end of the pressing member 57 and the adjustment block 53 have a certain moving distance, and then the pulling member 58 on the other side is screwed to make the head of the pulling member 58 on the other side and the end of the countersunk hole have a certain moving distance, and then the pulling member 58 on the adjustment side is screwed by the tool, and the pulling member 58 drives the pulling member 58 to move through the threaded cooperation between the pulling member 58 and the tightening threaded hole 56 on the adjustment block 53. During the movement, the pulling member 58 drives the sub-spindle upper body 2 to move and adjust after the head of the pulling member 58 contacts the end of the countersunk hole. After the adjustment is completed, the other pulling member 58 is screwed to tighten the adjustment block 53 and the sub-spindle upper body 2, and then the other two pressing members 57 are screwed in turn until the pressing member 57 presses against the adjustment seat to complete the front and rear position accuracy adjustment of the sub-spindle upper body 2 and the spindle unit 1.

[0042] After the front and rear position adjustment of the sub-spindle upper body 2 is completed, slightly tighten the bolts fixing the sub-spindle upper body 2 and the sub-spindle lower body 3, and then use the detection tool to adjust the height and angular tilt of the sub-spindle upper body 2 and the spindle unit 1. During the adjustment, different tightening forces are applied to the adjustment pads at the four corners to cause different deformations of the adjustment pads to compensate for the height and angular tilt errors of the spindle unit 1 until the precision adjustment is completed. After the adjustment is completed, the installation and adjustment of the sub-spindle box are completed.

[0043] The protection scope of the present utility model is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present utility model.

Claims

1. The sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool is characterized by It comprises a main spindle unit (1), a sub-spindle upper body (2), a sub-spindle lower body (3) and an adjustment mechanism; the main spindle unit (1) is mounted on the sub-spindle upper body (2); The adjustment mechanism comprises a front-to-back precision adjustment mechanism (5) for adjusting the precision of the auxiliary spindle upper body (2) and the spindle unit (1) in the front-to-back direction; The front-to-back precision adjustment mechanism (5) comprises a positioning pin (51) mounted on the sub-spindle lower body (3) and limiting the left-right position of the sub-spindle upper body (2) when the sub-spindle upper body (2) is subjected to front-to-back precision adjustment, a guide groove (52) provided on the sub-spindle upper body (2) and adapted to the positioning pin (51), and an adjustment block (53) mounted on the sub-spindle lower body (3); It also includes a pulling and lifting associated mechanism arranged on the secondary spindle upper body (2) and the adjustment block (53) for driving the secondary spindle upper body (2) to move, the pulling and lifting associated mechanism comprising a through hole (54) and a threaded hole (55) arranged on both sides of the secondary spindle upper body (2), a tightening threaded hole (56) arranged on the adjustment block (53) and corresponding to the position of the through hole (54), a tightening member (57) installed in the threaded hole (55) and having one end in contact with the adjustment block (53), and a pulling member (58) slidably installed in the through hole (54) and threadedly connected to the tightening threaded hole (56) on the adjustment block (53).

2. The sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool according to claim 1 is characterized in that: The adjustment mechanism further comprises a sub-spindle adjustment pad (4) installed between the sub-spindle upper body (2) and the sub-spindle lower body (3) for adjusting the height and angular position of the main spindle unit (1) and the sub-spindle upper body (2).

3. The sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool according to claim 2 is characterized in that: The auxiliary spindle adjustment pad (4) comprises one or more adjustment pads arranged between the auxiliary spindle upper body (2) and the auxiliary spindle lower body (3).

4. The sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool according to claim 1 is characterized in that: Circular deep holes (59) having a diameter greater than that of the positioning pin (51) are provided on both sides of the guide groove (52) to facilitate the disassembly and assembly of the auxiliary spindle upper body (2).

5. The sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool according to claim 1, characterized in that: The auxiliary spindle upper body (2) is fixedly mounted on the auxiliary spindle lower body (3) by means of bolts.

6. The sub-spindle box adjustment mechanism of the dual-spindle dual-turret CNC machine tool according to claim 3, characterized in that: The secondary spindle adjustment pad (4) is also provided with a U-shaped groove.

7. The sub-spindle box adjustment mechanism of a dual-spindle dual-turret CNC machine tool according to claim 1, characterized in that: The through hole (54) and the threaded hole (55) are both countersunk holes.

8. The sub-spindle box adjustment mechanism of a dual-spindle dual-turret CNC machine tool according to claim 1, characterized in that: The jacking member (57) is a jacking bolt, a jacking screw rod, or a jacking screw; the pulling member (58) is a pulling bolt, a pulling screw rod, or a pulling screw.

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