Tailstock for machining four shafts of center

Abstract

The utility model relates to the field of four shafts of a machining center, in particular to a tailstock for four shafts of the machining center, which comprises a tailstock fixing base, a main body for mounting the tailstock on the four shafts of the machining center, a fixing bolt and a supporting body penetrating through the upper part of the tailstock fixing base and used for connecting and mounting the supporting body, a threaded rod penetrates through the interior of the center cavity. The tailstock for the four shafts of the machining center is provided with the center cavity, the threaded rod, the center head, the outer sleeve, the disc sleeve seat, the movable rotary disc, the disc frame and the locking disc, and when the tailstock for the four shafts of the machining center is used, a machining table can be installed on the tailstock for the four shafts of the machining center according to the types of workpieces needing to be machined currently and shaft workpieces needing to be machined currently; the twisting disc is twisted to enable the threaded rod to abut against the pushing block inside, so that the center head extends out of the center cavity, the center head abuts against the tail of the shaft workpiece, and the shaft workpiece is fixed in cooperation with a chuck of a machining center.

Description

Technical Field

[0001] The utility model relates to the field of four-axis machining centers, in particular to a tailstock used for the four-axis machining centers. Background Art

[0002] The four-axis machining center is a highly automated and multi-functional CNC machine tool. It realizes multi-directional processing of the workpiece through the linkage of the four coordinate axes X-axis, Y-axis, Z-axis and A-axis, thereby improving processing efficiency and precision. The tailstock of the four-axis machining center is an important component in machine tool processing. It is mainly used to support the workpiece and prevent it from vibration and deformation, thereby improving processing quality and efficiency. The tailstock of the four-axis machining center usually refers to a device for supporting and fixing the workpiece on the four-axis machining center. It usually consists of a base, a slide, a tool holder, a tail knife, etc., and can be adjusted according to the length and shape of the workpiece.

[0003] During use, the tailstock of the existing four-axis machining center needs to be frequently replaced when processing different workpieces due to the different types of workpiece shafts and blocks. If the tailstock does not have a multi-functional fixed structure, it will be necessary to replace the tailstock frequently when processing different workpieces. This will significantly increase the changeover time and reduce the overall production efficiency. Moreover, each replacement of the tailstock may cause the interruption of the processing process, thereby affecting the continuity and stability of the production line. At the same time, in order to meet the processing needs of different workpieces, it is necessary to purchase multiple types of tailstocks, which will increase the equipment procurement cost.

[0004] Therefore, it is necessary to invent a tailstock for a four-axis machining center to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a tailstock for a four-axis machining center, which realizes the effects of the top cavity, threaded rod, top head, outer sleeve, disc sleeve, movable turntable, disc rack and locking disc through the top cavity, threaded rod, top head, outer sleeve, disc sleeve, movable turntable, disc rack and locking disc, so as to solve the problem that during the use of the tailstock of the four-axis machining center in the prior art, due to facing different types of workpiece shafts and blocks, if the tailstock does not have a multi-functional fixing structure, it is necessary to frequently replace the tailstock when processing different workpieces, which will significantly increase the changeover time and reduce the overall production efficiency. Moreover, each replacement of the tailstock may cause the interruption of the machining process, thereby affecting the continuity and stability of the production line. At the same time, in order to meet the processing needs of different workpieces, it is also necessary to purchase multiple types of tailstocks, which will increase the equipment procurement cost.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a tailstock for a four-axis machining center, comprising a tailstock fixing base, a main body for mounting the tailstock on the four-axis machining center;

[0007] A fixing bolt passes through the top of the tailstock fixed base and is used to connect the mounting support body, and a top cavity is fixedly installed on the top of the support body. A threaded rod passes through the interior of the top cavity, one end of the threaded rod is fixedly installed with a torsion disk, and the other end of the threaded rod is fixedly installed with a propulsion block, and a top head is provided on one side of the propulsion block;

[0008] A fastening bolt passes through the outside of the top cavity and is used to connect and install the outer sleeve, and a stud bolt passes through the outside of the outer sleeve, one end of the stud bolt is movably connected to a disc sleeve, and a movable turntable is provided on the outside of the disc sleeve, and a disc frame is fixedly installed on one side of the movable turntable;

[0009] A cross slot is provided on the outside of the disc frame for connecting and installing a cross plug block, and a locking disk is fixedly installed on one end of the cross plug block, a reinforcing bolt passes through the outside of the locking disk, and a workpiece interference block is fixedly installed on the outside of the locking disk.

[0010] Preferably, a mounting groove is provided above the tailstock fixing base, a reinforcement sheet is provided above the mounting groove, and a positioning bolt passes through the top of the reinforcement sheet.

[0011] Preferably, a buffer rod is fixedly installed on the outside of the support body, a movable frame is provided on one side of the buffer rod, a telescopic rod is movably connected inside the movable frame, an external fixed plate is fixedly installed on the outside of the telescopic rod, and a torsion spring is provided on one side of the external fixed plate.

[0012] Preferably, the torsion spring is movably connected to the buffer rod, and the buffer rod is symmetrically arranged with respect to the central axis of the support body.

[0013] Preferably, the propulsion block is movably connected to the top cavity, and the center line of the propulsion block coincides with the center line of the top head.

[0014] Preferably, a cross slot provided on the outside of the disc frame is engaged with a cross plug block fixedly installed on the outside of the locking disc, and the cross plug block is used in conjunction with the cross slot.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model is provided with a top cavity, a threaded rod, a top head, an outer sleeve, a disc sleeve, a movable turntable, a disc rack and a locking disc. When the tailstock of the four-axis machining center is used, according to the type of workpiece currently to be processed, in the case of a shaft workpiece, after the tailstock of the four-axis machining center is installed on the machining table, the twisting disc is twisted to make the threaded rod hit the internal propulsion block so that the top head extends out of the top cavity, and the top head hits the tail of the shaft workpiece, and the chuck of the machining center is cooperated to complete the fixation of the shaft workpiece. Conversely, in the case of a block-shaped workpiece, the disc sleeve and the disc rack can be installed on the outer sleeve outside the top cavity through stud bolts. , and then use the cross slot and cross insert block to fit the locking disk and the disc frame, so that the original top tailstock is replaced with a disc tailstock, and the tail of the block-shaped workpiece can be fixed by the workpiece contact block. In this way, the four-axis tailstock of the machining center has a multi-functional fixed structure. Not only does it not need to frequently change the tailstock when processing different workpieces, but it also ensures the smoothness of the machining process and the continuity and stability of the production line. This design significantly reduces the changeover time, improves the overall production efficiency, meets the processing needs of different workpieces, and reduces the need to purchase multiple types of tailstocks, which leads to increased equipment procurement costs.

[0017] The utility model is provided with a tailstock fixing base, a fixing bolt, a mounting groove, a reinforcement plate, a positioning bolt, a buffer rod, a telescopic rod and a torsion spring. When the tailstock of the four-axis machining center is used, the tailstock fixing base facilitates the docking and installation of the tailstock of the four-axis machining center with different machining center workbenches through the mounting groove, the reinforcement plate and the positioning bolt, thereby fixing the workpiece. Moreover, the telescopic rod and the torsion spring arranged on the outside of the support body can alleviate the vibration and impact force of the support body through the expansion and contraction of the telescopic rod and the torsion spring when the tailstock of the four-axis machining center is subjected to external vibration, thereby effectively absorbing and isolating vibration, improving machining stability, and also ensuring the stability of the connection between the tailstock of the four-axis machining center and the machining center machining table, thereby improving the fixing ability of the workpiece and reducing errors caused by shaking during workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the reinforcement sheet of the present utility model;

[0021] Figure 3 This is a schematic diagram of the torsion spring structure of the present utility model;

[0022] Figure 4 This is a schematic diagram of the propulsion block structure of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the locking disk of the present utility model.

[0024] Description of reference numerals:

[0025] 1. Tailstock fixed base; 2. Fixing bolts; 3. Support body; 4. Mounting slot; 5. Reinforcement plate; 6. Positioning bolt; 7. Buffer rod; 8. Movable frame; 9. Telescopic rod; 10. External fixed plate; 11. Torsion spring; 12. Center cavity; 13. Threaded rod; 14. Twisting plate; 15. Push block; 16. Center head; 17. Fastening bolt; 18. Outer sleeve; 19. Stud bolt; 20. Disc sleeve; 21. Movable turntable; 22. Disc frame; 23. Cross slot; 24. Cross insert; 25. Locking plate; 26. Reinforcement bolt; 27. Workpiece contact block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The utility model provides Figure 1-5 The tailstock shown is used for a four-axis machining center, comprising a tailstock fixing base 1, a main body for mounting the tailstock on the four-axis machining center;

[0028] The fixing bolt 2 passes through the top of the tailstock fixed base 1 and is used to connect the mounting support 3. A top cavity 12 is fixedly installed on the top of the support 3. A threaded rod 13 passes through the interior of the top cavity 12. A torsion disk 14 is fixedly installed on one end of the threaded rod 13. A propulsion block 15 is fixedly installed on the other end of the threaded rod 13. A top head 16 is provided on one side of the propulsion block 15.

[0029] A fastening bolt 17 passes through the outside of the top cavity 12 and is used to connect and install an outer sleeve 18. A stud bolt 19 passes through the outside of the outer sleeve 18. One end of the stud bolt 19 is movably connected to a disc sleeve 20. A movable turntable 21 is provided on the outside of the disc sleeve 20. A disc frame 22 is fixedly installed on one side of the movable turntable 21.

[0030] A cross slot 23 is provided on the outside of the disc frame 22 for connecting and installing a cross plug block 24, and a locking disk 25 is fixedly installed on one end of the cross plug block 24, and a reinforcing bolt 26 passes through the outside of the locking disk 25, and a workpiece contact block 27 is fixedly installed on the outside of the locking disk 25. The disc sleeve 20 and the disc frame 22 can be installed on the outer sleeve 18 outside the top cavity 12 through the stud bolts 19, and then the locking disk 25 is matched with the disc frame 22 by using the cross slot 23 and the cross plug block 24. In this way, the original top tailstock is replaced with a disc tailstock, and the tail of the block-shaped workpiece can be fixed by the workpiece contact block 27.

[0031] like Figure 1 、 Figure 2 and Figure 3 As shown, a mounting groove 4 is provided above the tailstock fixed base 1, a reinforcement sheet 5 is provided above the mounting groove 4, and a positioning bolt 6 is passed through the top of the reinforcement sheet 5. The tailstock fixed base 1 is convenient for the four-axis tailstock of the machining center to be docked and installed with different machining center workbenches through the mounting groove 4, the reinforcement sheet 5 and the positioning bolt 6, so as to fix the workpiece. A buffer rod 7 is fixedly installed on the outside of the support body 3, and a movable frame 8 is provided on one side of the buffer rod 7. The internal movability of the movable frame 8 is connected with a telescopic rod 9, and the outside of the telescopic rod 9 is fixedly installed with An external fixed disk 10 is provided with a torsion spring 11 on one side of the external fixed disk 10. When the tailstock of the four-axis machining center is subjected to external vibration, the vibration and impact force of the support body 3 can be alleviated by the extension and contraction of the telescopic rod 9 and the torsion spring 11, thereby effectively absorbing and isolating the vibration and improving the processing stability. The torsion spring 11 is movably connected to the buffer rod 7, and the buffer rod 7 is symmetrically arranged with respect to the central axis of the support body 3. The structure of the torsion spring 11 and the buffer rod 7 is simple and easy to operate, which also reduces the maintenance difficulty of the maintenance personnel in case of a fault.

[0032] like Figure 1 、 Figure 4 and Figure 5 As shown, the push block 15 is movably connected to the top cavity 12, and the center line of the push block 15 coincides with the center line of the top head 16. For an axial workpiece, after the tailstock of the four-axis machining center is installed on the machining table, the twisting disk 14 is twisted to allow the threaded rod 13 to contact the internal push block 15 so that the top head 16 extends out of the top cavity 12, and the top head 16 contacts the tail end of the axial workpiece, and cooperates with the chuck of the machining center to complete the fixation of the axial workpiece. The cross slot 23 opened on the outside of the disc frame 22 is engaged with the cross plug block 24 fixedly installed on the outside of the locking disk 25, and the cross plug block 24 is used in conjunction with the cross slot 23. The disc frame 22 is more stably connected to the cross plug block 24 and the locking disk 25 through the cross slot 23, and the movable turntable 21 set on one side of the disc frame 22 can also rotate synchronously with the workpiece fixed by the chuck of the machining center after the tailstock of the four-axis machining center fixes the workpiece.

[0033] The working principle of this utility model is: first, take out the tailstock of the four-axis machining center on the workbench of the machining center where the tailstock of the four-axis machining center needs to be installed, and connect the tailstock of the four-axis machining center to the workbench of the machining center through the mounting groove 4, the reinforcement plate 5 and the positioning bolt 6. Then, according to the type of workpiece currently to be processed, if it is an axial workpiece, after the tailstock of the four-axis machining center is installed on the machining table, twist the twisting disk 14 to make the threaded rod 13 hit the internal propulsion block 15 so that the top head 16 extends from the top cavity 12, and let the top head 16 hit the tail of the axial workpiece, and cooperate with the chuck of the machining center to complete the fixation of the axial workpiece. Then, if it is a block-shaped workpiece, the disc sleeve 20 and the disc frame 22 can be installed on the outer sleeve 18 outside the top cavity 12 through the stud bolts 19, and then the cross slot 23 and the cross are used. The insert block 24 fits the locking disk 25 with the disc frame 22, so that the original top tailstock is replaced with a disc tailstock, and the tail of the block-shaped workpiece can be fixed by the workpiece contact block 27. In this way, the tailstock of the four-axis machining center has a multi-functional fixing structure. Not only does it not need to frequently replace the tailstock when processing different workpieces, but it also ensures the smoothness of the machining process and the continuity and stability of the production line. Subsequently, when the tailstock of the four-axis machining center is subjected to external vibration, the telescopic rod 9 and the torsion spring 11 can be extended and retracted to alleviate the vibration and impact force of the support body 3, thereby effectively absorbing and isolating vibration and improving machining stability. Finally, after completing the installation and use of the tailstock of all four axes of the machining center according to the above operations, the device can be maintained daily, and the use process of the tailstock for the four axes of the machining center is completed.

[0034] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tailstock for a four-axis machining center, characterized by: include Tailstock fixed base (1), used for the main body of the tailstock installed on the fourth axis of the machining center; A fixing bolt (2) passes through the top of the tailstock fixed base (1) and is used to connect and install the support body (3), and a top cavity (12) is fixedly installed on the top of the support body (3), a threaded rod (13) passes through the inside of the top cavity (12), a torsion disk (14) is fixedly installed on one end of the threaded rod (13), and a propulsion block (15) is fixedly installed on the other end of the threaded rod (13), and a top head (16) is provided on one side of the propulsion block (15); A fastening bolt (17) passes through the outside of the top cavity (12) and is used to connect and install the outer sleeve (18), and a stud bolt (19) passes through the outside of the outer sleeve (18), one end of the stud bolt (19) is movably connected to a disc sleeve (20), and a movable turntable (21) is provided on the outside of the disc sleeve (20), and a disc frame (22) is fixedly installed on one side of the movable turntable (21); A cross slot (23) is provided on the outside of the disc frame (22) for connecting and installing a cross plug block (24), and a locking disk (25) is fixedly installed on one end of the cross plug block (24), a reinforcing bolt (26) passes through the outside of the locking disk (25), and a workpiece contact block (27) is fixedly installed on the outside of the locking disk (25).

2. The tailstock for a four-axis machining center according to claim 1, characterized in that: A mounting groove (4) is provided above the tailstock fixed base (1), a reinforcement plate (5) is provided above the mounting groove (4), and a positioning bolt (6) passes through the top of the reinforcement plate (5).

3. The tailstock for a four-axis machining center according to claim 1, characterized in that: A buffer rod (7) is fixedly mounted on the outside of the support body (3), a movable frame (8) is provided on one side of the buffer rod (7), a telescopic rod (9) is movably connected to the inside of the movable frame (8), an external fixed plate (10) is fixedly mounted on the outside of the telescopic rod (9), and a torsion spring (11) is provided on one side of the external fixed plate (10).

4. The tailstock for a four-axis machining center according to claim 3, characterized in that: The torsion spring (11) is movably connected to the buffer rod (7), and the buffer rod (7) is symmetrically arranged with respect to the central axis of the support body (3).

5. The tailstock for a four-axis machining center according to claim 1, characterized in that: The propulsion block (15) is movably connected to the top cavity (12), and the center line of the propulsion block (15) coincides with the center line of the top head (16).

6. The tailstock for a four-axis machining center according to claim 1, characterized in that: The cross slot (23) provided on the outside of the disc frame (22) is engaged with a cross insert block (24) fixedly installed on the outside of the locking disc (25), and the cross insert block (24) is used in conjunction with the cross slot (23).

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