Moving column type swing head five-axis machining center

Abstract

The utility model discloses a moving column type swing head five-axis machining center which comprises a base, a sliding seat installed on the top of the base in a sliding mode, a vertical seat installed on the top of the sliding seat in a sliding mode, a Z-axis sliding table installed on the front surface of the vertical seat in a sliding mode, a spindle box assembly installed in front of the Z-axis sliding table and a first spindle box fixed to the front surface of the Z-axis sliding table. The rotary table bracket is mounted on the front surface of the base; according to the machining center, on the basis of X / Y / Z linear axis movement, B-axis and C-axis rotation movement is added, the cutter swings around the Y axis, the angle of the cutter can be adjusted, and the machining center is suitable for complex curved surface machining; the workbench rotates around the Z axis, multi-face machining can be achieved, the clamping frequency is reduced, precision is improved, the workbench only rotates and does not incline or swing, the mechanical structure is more compact, and rigidity is higher. Five-axis linkage can be achieved, a cutter always cuts into a complex curved surface at the optimal angle, five-face machining is achieved through one-time clamping, repeated positioning errors are reduced, and machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining center, concretely relates to a dynamic column type swing head five -axis machining center. BACKGROUND

[0002] In the field of machining, along with the manufacturing industry to the high -end, the precision and the high -efficient direction development, the processing demand of complex curved surface parts and polyhedral parts is increasing day by day, and machine tool is the core processing equipment of manufacturing industry, and the number of its shaft configuration directly determines its movement degree of freedom and processing capacity, and then influences processing efficiency, precision and the complexity of processable parts, and traditional three -axis machining center has once occupied an important position in the machining industry owing to the advantages such as simple structure, relatively low cost and relatively convenient operation;

[0003] However, three -axis machining center only has the movement ability of X, Y, Z three linear axes, and can only process three orthogonal surfaces of workpiece, and when facing parts with complex curved surfaces such as impeller, aeroengine blade and complex mold cavity, three -axis machining center is not up to the task, and due to the limitation of tool movement track, the tool angle cannot be flexibly adjusted to adapt to the processing demand of complex curved surface, and due to once clamping, only one surface of workpiece can be processed, and if the processing of other surfaces is completed, the workpiece must be disassembled from the machine tool, and then the clamping position is adjusted and processed again, so that the overall processing efficiency is reduced, and therefore the utility model provides a dynamic column type swing head five -axis machining center. UTILITY MODEL CONTENTS

[0004] The utility model is aimed at providing a dynamic column type swing head five -axis machining center to solve the problems in the above background technology.

[0005] To realize the above -mentioned purpose, the utility model provides the following technical scheme: a dynamic column type swing head five -axis machining center, including base, sliding seat that is slidingly installed at the top of base, stand that is slidingly installed at the top of sliding seat, Z -axis sliding table that is slidingly installed at the front surface of stand, X -axis servo motor that is installed at one side of base and is used to drive the transverse movement of sliding seat, Y -axis servo motor that is installed at the rear of sliding seat and is used to drive the transverse movement of stand, Z -axis servo motor that is installed at the top of stand and is used to drive the lifting of Z -axis sliding table, still including

[0006] The main shaft box assembly installed in front of Z -axis sliding table includes main shaft box one fixed at the front surface of Z -axis sliding table and main shaft box two rotatably installed in front of main shaft box one, torque motor one is installed in main shaft box one, and the output end of torque motor one is connected with support shaft one, and the front end of support shaft one extends to the front surface of main shaft box one and is connected with main shaft box two;

[0007] And the rotating table support is installed on the front surface of the base, and the top end of the rotating table support is rotatably installed with a rotating workbench, a torque motor two is installed in the rotating table support, and a support shaft two is connected to the output end of the torque motor two, and the top end of the support shaft two extends to the top of the rotating table support and is connected with the rotating workbench.

[0008] Preferably, the rear end of the support shaft one is fixed with a brake disc, and the inner side of the Z-axis sliding table is installed with a plurality of clamps matched with the brake disc.

[0009] Preferably, the bottom end of the support shaft two is also installed with a brake disc, and the inner side of the rotating table support is installed with a clamp matched with the brake disc.

[0010] Preferably, the clamp comprises a U-shaped seat, two movable cavities opened in the U-shaped seat, two clamping pistons movably installed in the two movable cavities, an oil channel opened in the U-shaped seat and communicated with the movable cavities, and a hydraulic oil port connected to the outside of the U-shaped seat and communicated with the oil channel.

[0011] Preferably, the inner wall of the movable cavity is installed with a sealing ring, and the sealing ring is in extrusion contact with the clamping piston.

[0012] Preferably, the rear end of the support shaft one is installed with an annular encoder, and the bottom end of the support shaft two is also installed with an annular encoder.

[0013] Preferably, the bottom surface of the rotating workbench is opened with an annular bottom groove, and the top end surface of the rotating table support is fixed with an annular protrusion corresponding to the annular bottom groove, the top end surface of the rotating table support is opened with an annular mounting groove relative to the inner side of the annular protrusion, and an annular rubber ring is installed in the annular mounting groove, and the top end of the annular rubber ring is in extrusion contact with the bottom surface of the rotating workbench.

[0014] Preferably, the bottom surface of the annular rubber ring is provided with a plurality of integral L-shaped clamping blocks, and the inner wall of the bottom end of the annular mounting groove is opened with a plurality of L-shaped clamping grooves for the L-shaped clamping blocks to be clamped into.

[0015] Compared with the prior art, the machining center increases the rotation movement of B and C shafts on the basis of X / Y / Z linear shaft movement, the tool swings around the Y shaft (B shaft) to adjust the tool angle, which is suitable for complex curved surface machining; the workbench rotates around the Z shaft (C shaft) to realize multi-surface machining, reduce clamping times, improve precision, and the workbench only rotates without tilting and swinging, so that the mechanical structure is more compact and the rigidity is higher; five-axis linkage can be realized, the tool always cuts into the complex curved surface at the best angle, one clamping realizes five-surface machining, reduces repeated positioning error, and improves machining efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model.

[0017] Figure 2 is a sectional view of the main shaft box assembly of the utility model;

[0018] Figure 3 is a structural schematic view of the support shaft one braking disc and the holder of the utility model;

[0019] Figure 4 is a sectional view of the holder of the utility model;

[0020] Figure 5 is a sectional view of the rotary table support and the rotary workbench of the utility model;

[0021] Figure 6 is the utility model Figure 5 is a local enlarged view of the A area in the middle;

[0022] In the figure: 1, base; 2, sliding seat; 3, stand; 4, Z-axis sliding table; 5, X-axis servo motor; 6, Y-axis servo motor; 7, Z-axis servo motor; 81, main shaft box one; 82, main shaft box two; 83, torque motor one; 84, support shaft one; 91, rotary table support; 911, annular protrusion; 912, annular mounting groove; 913, annular rubber ring; 914, L-shaped clamping block; 915, L-shaped clamping groove; 92, rotary workbench; 921, annular bottom groove; 93, torque motor two; 94, support shaft two; 10, brake disc; 11, holder; 111, U-shaped seat; 112, hydraulic oil port; 113, movable cavity; 114, clamping piston; 115, oil passage; 12, annular encoder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1 to 5For the first embodiment of the utility model, this embodiment provides a technical scheme: a movable column type swing head five-axis machining center, including base 1, sliding seat 2 slidingly installed on the top of base 1, vertical seat 3 slidingly installed on the top of sliding seat 2, Z-axis sliding table 4 slidingly installed on the front surface of vertical seat 3, X-axis servo motor 5 for driving sliding seat 2 to move horizontally and installed on one side of base 1, Y-axis servo motor 6 for driving vertical seat 3 to move horizontally and installed behind sliding seat 2, Z-axis servo motor 7 for driving Z-axis sliding table 4 to move up and down and installed on the top of vertical seat 3, the above structure is a technology that has been fully disclosed in the prior art, and the specific structure principle will not be described in detail here, simply speaking, sliding seat 2 is slidingly installed on base 1 through a sliding table and a linear rail, and the bottom of sliding seat 2 is fixed with a nut seat, the inside of base 1 is rotatably installed with a lead screw penetrating through the nut seat through a bearing, the output end of X-axis servo motor 5 is connected with the lead screw, and the lead screw on the inside of base 1 is driven to rotate when X-axis servo motor 5 operates subsequently, so that sliding seat 2 and the nut seat at the bottom of sliding seat 2 are driven to move horizontally under the action of threads; the displacement principle of vertical seat 3 and Z-axis sliding table 4 is the same, the lead screw on the inside of sliding seat 2 is driven to rotate when Y-axis servo motor 6 operates, so that the nut seat at the bottom of vertical seat 3 and vertical seat 3 are driven to move horizontally under the action of threads, and the lead screw on the inside of vertical seat 3 is driven to rotate when Z-axis servo motor 7 operates, so that the nut seat on the rear surface of Z-axis sliding table 4 and Z-axis sliding table 4 are driven to move up and down under the action of threads;

[0026] Further comprising

[0027] Spindle box assembly installed in front of Z-axis sliding table 4, including spindle box one 81 fixed on the front surface of Z-axis sliding table 4, spindle box two 82 rotatably installed in front of spindle box one 81, the spindle box two 82 is internally provided with a direct drive motor for driving a tool to process subsequently, torque motor one 83 is installed in the spindle box one 81, and a support shaft one 84 is connected to the output end of torque motor one 83, the front end of support shaft one 84 extends to the front surface of spindle box one 81 and is connected with spindle box two 82 through bolts, so that torque motor one 83 can drive support shaft one 84 to rotate around Y axis (B axis) with spindle box two 82 subsequently, realizing the function of processing inclined holes and the like;

[0028] And rotary table support 91 fixedly installed on the front surface of base 1, and rotary workbench 92 rotatably installed on the top end of rotary table support 91, torque motor two 93 installed in rotary table support 91, and support shaft two 94 connected to the output end of torque motor two 93, the top end of support shaft two 94 extends to the top of rotary table support 91 and is connected with rotary workbench 92, so that torque motor two 93 can drive support shaft two 94 to rotate around Z axis (C axis) with rotary workbench 92 subsequently, which can drive the workpiece on rotary workbench 92 to rotate 360 degrees, so as to cooperate with X\Y\Z and B axis, realize one-time clamping and process five surfaces.

[0029] In this embodiment, preferably, the rear end of the support shaft one 84 is fixed with a brake disc 10, and the inner side of the Z-axis sliding table 4 is installed with a plurality of clamps 11 matched with the brake disc 10, and the brake of the support shaft one 84 is realized by matching the brake disc 10 with the plurality of clamps 11, and the bottom end of the support shaft two 94 is also installed with a brake disc 10, and the inner side of the rotary table support 91 is installed with a clamp 11 matched with the brake disc 10, and the brake of the support shaft two 94 is realized by matching the brake disc 10 with the clamp 11.

[0030] In this embodiment, preferably, the clamp 11 comprises a U-shaped seat 111, two movable cavities 113 opened in the U-shaped seat 111, two clamping pistons 114 movably installed in the two movable cavities 113, an oil passage 115 opened in the inside of the U-shaped seat 111 and communicated with the movable cavities 113, and a hydraulic oil port 112 connected to the outside of the U-shaped seat 111 and communicated with the oil passage 115, and in actual operation, the oil is imported and exported through the hydraulic oil port 112, when the oil is imported, the two clamping pistons 114 are pushed to the middle by the hydraulic pressure to press tightly, and then the brake disc 10 is locked, and when the oil is exported, the vacuum is formed in the inside of the movable cavity 113, and the atmospheric pressure pushes the clamping piston 114 to shrink backward to loosen the brake disc 10.

[0031] In this embodiment, preferably, the inner wall of the movable cavity 113 is installed with a sealing ring, and the sealing ring is in extrusion contact with the clamping piston 114 to prevent oil leakage.

[0032] In this embodiment, preferably, the rear end of the support shaft one 84 is installed with an annular encoder 12, and the bottom end of the support shaft two 94 is also installed with an annular encoder 12, and the annular encoder 12 converts the rotation angle of the support shaft one 84 and the support shaft two 94 into digital signals, cooperates with the original control system of the machining center, accurately controls the rotation angle of the spindle box two 82 and the rotary workbench 92, and ensures the consistency of multi-surface machining.

[0033] Explanation definition: The five axes of this machining center are X, Y, Z, B, and C axes, the X / Y / Z axes move along the straight line; the B axis rotates around the Y axis (the spindle box assembly part); and the C axis rotates around the Z axis (the rotary workbench 92 part).

[0034] Embodiment 2

[0035] Please refer to Figures 1 to 6For the second embodiment of the utility model, this embodiment is based on the last embodiment, and the difference is that the bottom surface of the rotating workbench 92 is provided with an annular bottom groove 921, and the top end surface of the rotating table support 91 is fixed with an annular protrusion 911 corresponding to the annular bottom groove 921, and the two form an annular fence to prevent foreign matter from entering between the rotating workbench 92 and the rotating table support 91, the top end surface of the rotating table support 91 is provided with an annular mounting groove 912 relative to the inner side of the annular protrusion 911, and the annular mounting groove 912 is provided with an annular rubber ring 913, the top end of the annular rubber ring 913 is in extrusion contact with the bottom surface of the rotating workbench 92, further improving the sealing performance, preventing dust and other foreign matter from entering between the rotating workbench 92 and the rotating table support 91, and not affecting the normal rotation of the rotating workbench 92.

[0036] In the embodiment, preferably, the bottom surface of the annular rubber ring 913 is provided with a plurality of integral L-shaped clamping blocks 914, both of which are made of fluorine rubber material and will be elastically deformed when being extruded, the bottom end inner wall of the annular mounting groove 912 is provided with a plurality of L-shaped clamping grooves 915 for the L-shaped clamping blocks 914 to be clamped into, so that the annular rubber ring 913 can be stably installed in the annular mounting groove 912, avoiding falling and displacement, and ensuring the sealing effect.

[0037] Although the embodiments of the utility model have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A moving column swing head five-axis machining center, comprising a base (1), a sliding seat (2) slidingly mounted on the top of the base (1), a vertical seat (3) slidingly mounted on the top of the sliding seat (2), a Z-axis sliding table (4) slidingly mounted on the front surface of the vertical seat (3), an X-axis servo motor (5) mounted on one side of the base (1) for driving the sliding seat (2) to move transversely, a Y-axis servo motor (6) mounted behind the sliding seat (2) for driving the vertical seat (3) to move transversely, and a Z-axis servo motor (7) mounted on the top of the vertical seat (3) for driving the Z-axis sliding table (4) to move up and down, characterized in that: Also include The main shaft box assembly is installed in front of the Z-axis sliding table (4), including the main shaft box one (81) fixed on the front surface of the Z-axis sliding table (4), the main shaft box two (82) rotatably installed in front of the main shaft box one (81), the torque motor one (83) installed in the main shaft box one (81), and the support shaft one (84) connected to the output end of the torque motor one (83), the front end of the support shaft one (84) extending to the front surface of the main shaft box one (81) and connecting with the main shaft box two (82); And the rotary table support (91) is installed on the front surface of the base (1), and the rotary table support (91) is rotatably installed on the top end of the rotary table support (91), the torque motor two (93) is installed in the rotary table support (91), and the support shaft two (94) is connected to the output end of the torque motor two (93), the top end of the support shaft two (94) extending to the top of the rotary table support (91) and connecting with the rotary table (92).

2. A dynamic column and swing beam five axis machining center according to claim 1 characterized in that: The rear end of the support shaft one (84) is fixed with a brake disc (10), and the inner side of the Z-axis sliding table (4) is provided with a plurality of clamps (11) matched with the brake disc (10).

3. A dynamic column and swing head five axis machining center according to claim 2, characterized in that: The bottom end of the support shaft two (94) is also provided with a brake disc (10), and the inner side of the rotary table support (91) is provided with a clamp (11) matched with the brake disc (10).

4. A tilting column five-axis machining center according to claim 3, characterized in that: The clamp (11) includes a U-shaped seat (111), two movable cavities (113) opened in the U-shaped seat (111), two clamping pistons (114) movably installed in the two movable cavities (113), an oil channel (115) opened in the U-shaped seat (111) and communicated with the movable cavity (113), and a hydraulic oil port (112) connected to the outside of the U-shaped seat (111) and communicated with the oil channel (115).

5. A swiveling column type five-axis machining center according to claim 4, characterized in that: The inner wall of the movable cavity (113) is provided with a sealing ring, and the sealing ring is in extrusion contact with the clamping piston (114).

6. A dynamic column and swing head five axis machining center according to claim 1 characterized in that: The rear end of the support shaft one (84) is provided with an annular encoder (12), and the bottom end of the support shaft two (94) is also provided with an annular encoder (12).

7. A dynamic column and swing head five axis machining center according to claim 1 characterized by: The bottom surface of the rotary table (92) is provided with an annular bottom groove (921), and the top end surface of the rotary table support (91) is fixed with an annular protrusion (911) corresponding to the annular bottom groove (921), the top end surface of the rotary table support (91) is provided with an annular mounting groove (912) on the inner side of the annular protrusion (911), and the annular mounting groove (912) is provided with an annular rubber ring (913), the top end of the annular rubber ring (913) is in extrusion contact with the bottom surface of the rotary table (92).

8. A dynamic column and swing head five axis machining center according to claim 7, characterized in that: The bottom surface of the annular rubber ring (913) is provided with a plurality of integral L-shaped clamping blocks (914), and the inner wall of the bottom end of the annular mounting groove (912) is provided with a plurality of L-shaped clamping grooves (915) for clamping the L-shaped clamping blocks (914).

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