T-shaped groove one-time forming numerical control machine tool

Abstract

The utility model discloses a T-shaped groove one-time forming numerical control machine tool which comprises a machine tool body, a workbench and a stand column, a front cutter driving assembly controls a front movable beam to move up and down, a cutter tailstock, a milling power head and a combined cutter are installed on the front movable beam, and a power assembly drives the milling power head to rotate so as to drive the combined cutter to rotate. A five-axis spindle box is arranged in the middle of the rear movable beam, a motor is arranged on the upper portion of the five-axis spindle box, and two rows of T-opening cutters which are arranged in a staggered mode are installed on the lower portion of the five-axis spindle box. The double-moving-beam structure is adopted, the structure is more compact, the cost is saved, and the occupied space is reduced; the five-axis spindle box is connected to the movable beam B and integrally moves with the movable beam, the working efficiency is high during rough machining, the T-opening cutter is a center water outlet cutter, the service life of the cutter is prolonged, and the cost is reduced; the combined cutter on the movable beam A simultaneously adopts a cutter supporting shaft, so that deformation and vibration of the cutter can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe processing technical field especially, relates to a T -shaped groove one -off forming numerical control machine tool. BACKGROUND

[0002] T -shaped groove worktable is a cast flat plate with T -shaped groove on the surface, mainly used to fix workpiece, for worktable processing, the working hours of milling T -shaped groove process accounts for a large proportion, the traditional worktable T -shaped groove processing technology is to use vertical machining center or gantry machining center to process, and the machining tool handle is generally one to complete the forming of the whole worktable T -shaped groove, for the worktable with five T -shaped grooves, first, the bottom groove of five straight grooves is processed, and the time is 82 min, then, the five straight grooves are expanded, and the time is 14 min, finally, the five T -shaped grooves are opened, and the time is 30 min. The total time of conventional processing T -shaped groove of the part is 126 min.

[0003] Such processing method causes the problems of long working hours, low efficiency and fast tool wear, and the precision and service life of the machine tool are also affected. In the processing process, the machining precision deviation is large due to long-time continuous processing, so the precision deviation is formed on the machined part, which directly leads to the scrap of the machined part and increases the overall processing cost.

[0004] There is also a patent number 202220857280.8, a worktable T -shaped groove multi -station one -off forming numerical control machine tool, the utility model provides a worktable T -shaped groove multi -station one -off forming numerical control machine tool, belongs to metal processing technical field, mainly to make the processing time and processing cost in the process of T -shaped groove reasonable coordination. The utility model adopts double gantry frame structure as a whole, including first gantry and second gantry, and bed body part installation;The worktable for fixing workpiece driven by X direction movement mechanism is installed on the bed body part installation, and the worktable clamps the workpiece through the chuck arranged on the top;The slotting mechanism and the fine milling mechanism for processing the upper straight groove of T -shaped groove are arranged on the first gantry, and the milling groove mechanism for processing the lower horizontal groove of T -shaped groove is arranged on the second gantry. Although the scheme can process multiple T -shaped grooves at a time, the space occupation is large. SUMMARY

[0005] To solve the problem of long T -shaped groove processing time, the utility model provides a T -shaped groove one -off forming numerical control machine tool for multiple T -shaped grooves one -off clamping forming.

[0006] The utility model adopts the following technical scheme: a T -shaped groove one -off forming numerical control machine tool, including bed body 1, worktable 2, left stand 3, right stand 4, front movable beam 5, rear movable beam 6, connecting beam 7, combined tool 8, milling power head 9 and five -axis spindle box 10.

[0007] The bed body 1 is fixed on the ground, and the middle positions of the two sides of the bed body 1 in the width direction are provided with a left stand column 3 and a right stand column 4 in a relative manner. A connecting beam 7 is arranged above the left stand column 3 and the right stand column 4, and is fixedly connected between the left stand column 3 and the right stand column 4 at two ends of the connecting beam 7, so as to realize the installation stability of the connecting beam 7. The left stand column 3 and the right stand column 4 cooperate with the connecting beam 7 to form a portal frame for component installation. The bed body 1 is provided with a workbench 2 driven by an X-axis driving assembly 22 for fixing a workpiece, so that the workbench 2 can shuttle in the portal formed by the left stand column 3, the right stand column 4 and the connecting beam 7, and drive the workpiece to move below the portal frame.

[0008] The left stand column 3 and the right stand column 4 are respectively provided with vertical front tool sliding rails and rear tool sliding rails on the front and rear sides in the X direction. One side of the front moving beam 5 in the vertical direction is provided with a front tool sliding groove matched with the front tool sliding rail, and a front tool driving assembly controls the front moving beam 5 to move up and down along the front tool sliding rail. The front tool driving assembly comprises two Z1-axis driving assemblies 11 and two Z1-axis balance oil cylinders 12 respectively located on the front side of the left stand column 3 and the right stand column 4 in the X direction.

[0009] A tool tailstock 13 is mounted on the side of the front moving beam 5 away from the front tool sliding groove and opposite to the right stand column 4, and a milling power head 9 is mounted on the side of the front moving beam 5 away from the front tool sliding groove and opposite to the left stand column 3. A combined tool 8 is arranged between the milling power head 9 and the tool tailstock 13. A power assembly drives the milling power head 9 to rotate, so as to drive the combined tool 8 to rotate. The combined tool 8 comprises a tool support shaft 14 and five disc cutters 15 fixed on the tool support shaft 14 in a sleeved manner. The spacing between the center lines of adjacent disc cutters 15 is consistent with the spacing between the center lines of adjacent T-shaped grooves on the workbench to be machined. Tool auxiliary supports 16 sleeved on the tool support shaft 14 are arranged between the first and second tools and between the third and fourth tools. The tool auxiliary supports 16 are trapezoidal plates, which prevent the tools from deforming and vibrating.

[0010] One side of the rear moving beam 6 in the vertical direction is provided with a rear tool sliding groove matched with the rear tool sliding rail. The rear moving beam 6 moves up and down along the rear tool sliding rail under the drive of a rear tool driving assembly. The rear tool driving assembly comprises two Z2-axis driving assemblies 17 and two Z2-axis balance oil cylinders 18 respectively located on the rear side of the left stand column 3 and the right stand column 4 in the X direction. A five-axis spindle box 10 is arranged at the middle position of the rear moving beam 6. A motor 19 is arranged on the upper part of the five-axis spindle box 10, and two rows of staggered open T tools 20 are mounted on the lower part of the five-axis spindle box 10. The open T tools 20 are center-outlet tools. A five-axis synchronous transmission mechanism is adopted in the five-axis spindle box, so that the five shafts are driven by the same spindle motor, and high-precision and high-speed rotation cutting is realized in cooperation with high-precision and high-speed bearings.

[0011] Beneficial effects: the utility model discloses a combination cutter can form five straight grooves at one time, and the five-axis spindle box can form five T-shaped grooves at one time, so that two processes are completed on the same machine tool, the machining efficiency of the workbench T-shaped groove is greatly improved, the machining time of single part is saved by 102 min compared with conventional machining time, the machining efficiency is improved by about 5.4 times, according to the monthly order of 1000 of the company, about 102000 min (1700h) machining time can be saved every month, and the machining cost and labor cost are greatly reduced. The utility model adopts double moving beam structure, and the structure is more compact, cost is saved, and the occupied space is reduced. The five-axis spindle box is connected on the moving beam B and moves as a whole, the working efficiency is high during rough machining, the T-shaped cutter 20 is a center water cutter, the service life of the cutter is improved, and the cost is reduced. The combination cutter on the moving beam A simultaneously adopts a cutter supporting shaft, and the cutter deformation and vibration can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0013] Figure 2 It is a left view structure schematic view of the utility model.

[0014] Figure 3 It is a right view structure schematic view of the utility model.

[0015] Figure 4 It is a front moving beam structure schematic view of the utility model.

[0016] Figure 5 It is a five-axis spindle box structure schematic view of the utility model.

[0017] In the drawing: bed body 1, workbench 2, left stand column 3, right stand column 4, front moving beam 5, rear moving beam 6, connecting beam 7, combination cutter 8, milling power head 9, five-axis spindle box 10, Z1 axis driving assembly 11, Z1 axis balance oil cylinder 12, cutter tailstock 13, cutter supporting shaft 14, disc milling cutter 15, cutter auxiliary support 16, Z2 axis driving assembly 17, Z2 axis balance oil cylinder 18, motor 19, T-shaped cutter 20, machined workpiece 21, X-axis driving assembly 22. DETAILED DESCRIPTION

[0018] The utility model is further described below in combination with the drawings and examples.

[0019] Example 1: a T-shaped groove one-time forming numerical control machine tool, including bed body 1, workbench 2, left stand column 3, right stand column 4, front moving beam 5, rear moving beam 6, connecting beam 7, combination cutter 8, milling power head 9 and five-axis spindle box 10.

[0020] The bed body 1 is fixed on the ground, and the middle positions of the two sides of the bed body 1 in the width direction are provided with a left stand column 3 and a right stand column 4 in a relative manner. A connecting beam 7 is arranged above the left stand column 3 and the right stand column 4, and is fixedly connected between the left stand column 3 and the right stand column 4 at two ends of the connecting beam 7, so as to realize the installation stability of the connecting beam 7. The left stand column 3 and the right stand column 4 cooperate with the connecting beam 7 to form a portal frame for component installation. The bed body 1 is provided with a workbench 2 driven by an X-axis driving assembly 22 for fixing a workpiece, so that the workbench 2 can shuttle in the portal formed by the left stand column 3, the right stand column 4 and the connecting beam 7, and drive the workpiece to move below the portal frame.

[0021] The left stand column 3 and the right stand column 4 are respectively provided with vertical front tool sliding rails and rear tool sliding rails on the front and rear sides in the X direction. One side of the front moving beam 5 in the vertical direction is provided with a front tool sliding groove matched with the front tool sliding rail. A front tool driving assembly controls the front moving beam 5 to move up and down along the front tool sliding rail.

[0022] The front moving beam 5 is provided with a tool tailstock 13 at the side opposite to the front tool sliding groove and opposite to the right stand column 4, and is provided with a milling power head 9 opposite to the left stand column 3. A combined tool 8 is arranged between the milling power head 9 and the tool tailstock 13. A power assembly drives the milling power head 9 to rotate, so as to drive the combined tool 8 to rotate. The combined tool 8 comprises a tool support shaft 14 and five disc cutters 15 fixed on the tool support shaft 14 in a sleeved manner. The spacing between the center lines of adjacent disc cutters 15 is consistent with the spacing between the center lines of adjacent T-shaped grooves on the workbench to be machined. Tool auxiliary supports 16 sleeved on the tool support shaft 14 are arranged between the first and second tools and between the third and fourth tools. The tool auxiliary supports 16 are trapezoidal plates, which prevent the tools from deforming and vibrating.

[0023] One side of the rear moving beam 6 in the vertical direction is provided with a rear tool sliding groove matched with the rear tool sliding rail. The rear moving beam 6 moves up and down along the rear tool sliding rail under the drive of a rear tool driving assembly. The rear tool driving assembly comprises two Z2-axis driving assemblies 17 and two Z2-axis balance oil cylinders 18 respectively located on the rear sides of the left stand column 3 and the right stand column 4 in the X direction. A five-axis spindle box 10 is arranged at the middle position of the rear moving beam 6. A motor 19 is arranged on the upper part of the five-axis spindle box 10, and two rows of staggered open T tools 20 are arranged on the lower part of the five-axis spindle box 10. The open T tools 20 are center-outlet tools. A five-axis synchronous transmission mechanism is arranged in the five-axis spindle box, so that the five shafts are driven by the same spindle motor, and high-precision and high-speed rotation cutting is realized.

[0024] After the workpiece 21 is clamped, the front moving beam 5 and the rear moving beam 6 move to a safe position; the workpiece 21 follows the workbench to move to a designated machining position; the front moving beam 5 moves to the machining position while the milling power head 9 drives the combined cutter 8 to work, the workpiece follows the workbench 2 to feed and machine a straight groove; after the straight groove is machined, the front moving beam 5 moves to the safe position and stops moving, while the rear moving beam 6 moves to the machining position, the five-axis spindle box 10 starts working, and the workpiece feeds with the workbench 2 to complete the machining of five T-shaped grooves; after the T-shaped grooves are machined, the rear moving beam 6 moves to the safe position, the five-axis spindle box 10 stops working, and the machining is completed.

Claims

1. A T-slot one-time forming numerical control machine tool, comprising a bed body (1), a worktable (2), a left vertical column (3), a right vertical column (4), a front moving beam (5), a rear moving beam (6), a connecting beam (7), a combined cutter (8), a milling power head (9) and a five-axis spindle box (10), characterized in that: The bed body (1) is fixed on the ground, and the middle positions of the two sides of the bed body (1) in the width direction are provided with a left stand column (3) and a right stand column (4) in a relative manner, and a connecting beam (7) is erected on the left stand column (3) and the right stand column (4); the bed body (1) is provided with a workbench (2) for fixing a workpiece driven by an X-axis driving assembly (22); The left stand column (3) and the right stand column (4) are provided with vertical front tool sliding rails and rear tool sliding rails on the front and rear sides in the X direction, respectively, one side of the front moving beam (5) in the vertical direction is provided with front tool sliding grooves matched with the front tool sliding rails, and a front tool driving assembly controls the front moving beam (5) to move up and down along the front tool sliding rails; the front tool driving assembly comprises two Z1-axis driving assemblies (11) and two Z1-axis balance oil cylinders (12) located on the front sides in the X direction of the left stand column (3) and the right stand column (4), respectively. The front moving beam (5) is provided with a tool tailstock (13) mounted on the opposite end of the right stand column (4) and a milling power head (9) mounted on the opposite end of the left stand column (3) on the side away from the front tool sliding grooves, a combined tool (8) is arranged between the milling power head (9) and the tool tailstock (13), and a power assembly drives the milling power head (9) to rotate so as to drive the combined tool (8) to rotate; One side of the rear moving beam (6) in the vertical direction is provided with rear tool sliding grooves matched with the rear tool sliding rails, the rear moving beam (6) moves up and down along the rear tool sliding rails under the drive of a rear tool driving assembly, and the rear tool driving assembly comprises two Z2-axis driving assemblies (17) and two Z2-axis balance oil cylinders (18) located on the rear sides in the X direction of the left stand column (3) and the right stand column (4), respectively; a five-axis spindle box (10) is arranged at the middle position of the rear moving beam (6), a motor (19) is arranged on the upper portion of the five-axis spindle box (10), and two rows of staggered open T tools (20) are arranged on the lower portion of the five-axis spindle box (10).

2. A T-slot one-time forming numerical control machine tool according to claim 1, characterized in that: The combined tool (8) comprises a tool support shaft (14) and five disc cutters (15) equally sleeved on the tool support shaft (14), the spacing between the center lines of adjacent disc cutters (15) is consistent with the spacing between the center lines of adjacent T-shaped grooves on the workbench to be machined, and a tool auxiliary support (16) sleeved on the tool support shaft (14) is further arranged between the first and second disc cutters (15) and between the third and fourth disc cutters (15), and the tool auxiliary support (16) is a trapezoidal plate.

3. A T-slot one-time forming numerical control machine tool according to claim 1 or 2, characterized in that: The open T tool (20) is a center water outlet tool.

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