Single-support five-axis cradle NC rotary table

Abstract

The utility model provides a single support five -axis cradle numerical control rotary table, include: main part mechanism, response part is used for response workpiece's weight, first support seat and second support seat swing in the inside of fixed base, first threaded rod swing in the inside of fixed base, gear disc is installed in the inside of fixed base, push mechanism includes push pole, push pole connection in the surface of first support seat and second support seat, auxiliary mechanism includes locating plate, locating plate connection in the inside of first support seat and second support seat. The utility model provides a single support five -axis cradle numerical control rotary table through main part mechanism can realize five -axis processing, when processing to bulky workpiece, drive mechanism can drive support mechanism to move out the inside of fixed base, simultaneously, through transmission mechanism transmission, make push mechanism push second support seat remove, and realize the support to A axis cradle bottom through auxiliary mechanism, improved bearing capacity, and then improved processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of five-axis cradle CNC turntable design, and in particular to a single-support five-axis cradle CNC turntable. Background Technology

[0002] The five-axis cradle CNC rotary table is the core functional component of a five-axis machining center. It is named for its cradle-like structure and can achieve high-precision machining of complex curved surfaces. It mainly includes the cradle part, the rotary table part, the transmission part, and the control system.

[0003] The single-arm five-axis cradle CNC rotary table is an important functional component of a five-axis machining center. Compared with the double-arm five-axis cradle CNC rotary table, it has a more compact structure and occupies less space. It has an A swing axis and a C rotary axis, which are linked with the X, Y, and Z linear feed axes of the machine tool to achieve precise and flexible positioning and rotation of the workpiece in multiple directions.

[0004] However, the single-arm support structure connects the A-axis swing mechanism and the C-axis rotary table only through one side of the arm. Compared with the double-arm symmetrical support, its overall torsional stiffness and bending stiffness are lower. When bearing heavy workpieces or performing heavy cutting, it is prone to slight deformation due to uneven force, which affects the machining accuracy.

[0005] Therefore, it is necessary to provide a single-support five-axis cradle CNC turntable to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a single-support five-axis cradle CNC rotary table, which solves the problem that weak rigidity and load-bearing capacity affect machining accuracy.

[0007] To solve the above-mentioned technical problems, this utility model provides a single-support five-axis cradle CNC turntable, comprising: a main body mechanism, the main body mechanism including a fixed base and a sensing component, the sensing component being used to sense the weight of the workpiece; The support mechanism includes a first support base and a second support base, which are movably connected inside the fixed base. The drive mechanism includes a first threaded rod, which is movably connected inside the fixed base; A transmission mechanism, the transmission mechanism including a gear disk, the gear disk being installed inside the fixed base; A pushing mechanism, the pushing mechanism including a pushing rod, the pushing rod being connected to the surfaces of the first support base and the second support base; An auxiliary mechanism includes a positioning plate connected inside the first support base and the second support base.

[0008] Preferably, a first motor is installed inside the fixed base, one end of the first motor is connected to an A-axis cradle, a C-axis turntable is installed on the surface of the A-axis cradle, and the sensing component is installed inside the C-axis turntable.

[0009] Preferably, the first support base is connected to connecting plates at both ends, the first threaded rod is connected to a first transmission belt at one end, and a second motor is connected to the surface of the first transmission belt.

[0010] Preferably, the gear disk is connected to the surface of one end of the connecting plate, a rack is connected inside the fixed base, the gear disk is connected to the surface of the rack, and a second transmission belt is connected to the surface of the connecting plate.

[0011] Preferably, the first support base is internally connected to a second threaded rod, the surface of the second threaded rod is connected to a threaded block, and both ends of the push rod are connected to the surface of the threaded block.

[0012] Preferably, a pushing component is installed inside the first support base and the second support base, the positioning plate is connected to the top of the pushing component, and a positioning groove is opened at the bottom of the A-axis cradle, with the positioning plate embedded inside the positioning groove.

[0013] Preferably, the fixed base is provided with a sealing mechanism, the sealing mechanism including a gas cylinder, the gas cylinder is installed inside the fixed base, one end of the gas cylinder is connected to a gas supply pipe, and the surface of the gas supply pipe is connected to a jet nozzle.

[0014] Compared with related technologies, the single-support five-axis cradle CNC turntable provided by this utility model has the following beneficial effects: This utility model provides a single-support five-axis cradle CNC rotary table. The main body mechanism can realize five-axis machining. When machining large-volume workpieces, the drive mechanism can drive the support mechanism to move out of the fixed seat. At the same time, the transmission mechanism drives the push mechanism to move the second support seat. The auxiliary mechanism supports the bottom of the A-axis cradle, which improves the load-bearing capacity and thus improves the machining accuracy. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a first embodiment of a single-support five-axis cradle CNC turntable provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure on the lower side; Figure 3 for Figure 1 The diagram shows the internal structure of the mounting base 11. Figure 4This is a schematic diagram of the second embodiment of a single-support five-axis cradle CNC turntable provided by this utility model.

[0016] The diagram is labeled as follows: 1. Main body mechanism; 11. Fixed base; 12. First motor; 13. A-axis cradle; 14. C-axis turntable; 15. Sensing components. 2. Support mechanism; 21. First support seat; 22. Second support seat; 23. Connecting plate. 3. Drive mechanism; 31. First threaded rod; 32. First transmission belt; 33. Second motor. 4. Transmission mechanism, 41. Rack, 42. Gear disc, 43. Second transmission belt, 5. Pushing mechanism; 51. Second threaded rod; 52. Threaded block; 53. Push rod. 6. Auxiliary mechanism; 61. Positioning plate; 62. Pushing component; 63. Positioning groove. 7. Sealing mechanism; 71. Gas tank; 72. Gas pipe; 73. Jet nozzle. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] First Embodiment Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a single-support five-axis cradle CNC turntable provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure on the lower side; Figure 3 for Figure 1 The diagram shows the internal structure of the fixed base 11. A single-support five-axis cradle CNC rotary table includes: a main body mechanism 1, which includes a fixed base 11 and a sensing component 15, the sensing component 15 being used to sense the weight of the workpiece; Support mechanism 2, which includes a first support base 21 and a second support base 22, wherein the first support base 21 and the second support base 22 are movably connected inside the fixed base 11; The drive mechanism 3 includes a first threaded rod 31, which is movably connected inside the fixed base 11. Transmission mechanism 4, the transmission mechanism 4 includes a gear disk 42, the gear disk 42 is installed inside the fixed base 11; A pushing mechanism 5, which includes a pushing rod 53, which is connected to the surfaces of the first support 21 and the second support 22; The auxiliary mechanism 6 includes a positioning plate 61, which is connected inside the first support base 21 and the second support base 22.

[0019] The main body mechanism 1 drives the workpiece to rotate to achieve five-axis machining. The fixed seat 11 provides support and protection for the entire device. The sensing component 15 can be a resistance strain gauge weight sensor, a capacitive weight sensor, or a piezoelectric weight sensor, preferably a resistance strain gauge weight sensor. The support mechanism 2 provides auxiliary support to the main body mechanism 1 to increase its load-bearing capacity. The first support seat 21 and the second support seat 22 are the same size and shape, and both have an arc-shaped top. The drive mechanism 3 drives the support mechanism 2 to move. The first threaded rod 31 is rotatably connected inside the fixed seat 11. The transmission mechanism 4 connects the transmission to realize the movement of the push mechanism 5. There are two gear disks 42. The push mechanism 5 pushes the second support seat 22 to move. There are two push rods 53, which are connected to each other. The push and pull of the second support seat 22 is realized by the relative movement of one end of the two push rods 53. The auxiliary mechanism 6 improves the stability of the support mechanism 2 in supporting the A-axis cradle 13.

[0020] The first motor 12 is installed inside the fixed base 11. One end of the first motor 12 is connected to the A-axis cradle 13. The C-axis turntable 14 is installed on the surface of the A-axis cradle 13. The sensing component 15 is installed inside the C-axis turntable 14.

[0021] The A-axis cradle 13 is connected to the outside of one end of the fixed base 11 and can rotate up and down by the first motor 12. The A-axis cradle 13 has a drive component installed inside, which drives the C-axis turntable 14 to rotate left and right. The bottom of the A-axis cradle 13 is arc-shaped and fits against the bottom of the first support base 21 and the second support base 22. When the workpiece is placed on the C-axis turntable 14, the sensing component 15 can sense the weight of the workpiece and transmit a signal.

[0022] The first support base 21 has connecting plates 23 at both ends, the first threaded rod 31 has a first transmission belt 32 at one end, and a second motor 33 is connected to the surface of the first transmission belt 32.

[0023] There are two connecting plates 23, which are respectively connected to the two ends of the rear end of the first support 21, and each end is connected to a slider. A rod is fixedly connected inside a section of the fixed seat 11. The two sliders are respectively threaded to the surface of the first threaded rod 31 and slidably connected to the surface of the connecting rod. The first transmission belt 32 is composed of a gear belt with the surfaces of two gears meshing. One gear is fixedly connected to one end of the first threaded rod 31, and the second motor 33 is connected to the surface of the other gear. The second motor 33 drives the gear to rotate. After the gear belt meshes with the gear, it rotates and meshes with the gear at the end of the first threaded rod 31. The gear drives the first threaded rod 31 to rotate, and the slider drives the connecting plate 23 to push the first support 21 forward.

[0024] The gear disk 42 is connected to the surface of one end of the connecting plate 23. The rack 41 is connected inside the fixed base 11. The gear disk 42 is connected to the surface of the rack 41. The second transmission belt 43 is connected to the surface of the connecting plate 23.

[0025] The two gear disks 42 are rotatably connected to the surfaces of the two sliders respectively. There are two racks 41, which are fixedly connected to the inside of both ends of the fixed base 11 respectively. The two gear disks 42 are meshed with the two racks 41 respectively. The two second transmission belts 43 are both belts that mesh with the surfaces of the two gears and are respectively connected to the surfaces of the two connecting plates 23.

[0026] The first support 21 is internally connected to a second threaded rod 51, and the surface of the second threaded rod 51 is connected to a threaded block 52. The two ends of the push rod 53 are connected to the surface of the threaded block 52.

[0027] The second threaded rod 51 is rotatably connected inside the first support 21 and is divided into two opposite gear ends. The two threaded blocks 52 are respectively threadedly connected to the surfaces of the two opposite threads. One end of the two push rods 53 is rotatably connected to the surfaces of the two threaded blocks 52. A slide rod is fixedly connected inside the second support 22. The slide rod surface is slidably connected to the two threaded blocks 52. The other end of the two push rods 53 is rotatably connected to the surfaces of the two threaded blocks 52.

[0028] The first support base 21 and the second support base 22 are equipped with a pushing component 62. The positioning plate 61 is connected to the top of the pushing component 62. The bottom of the A-axis cradle 13 is provided with a positioning groove 63, and the positioning plate 61 is embedded in the positioning groove 63.

[0029] There are two auxiliary mechanisms 6. The two positioning plates 61 are slidably embedded in the first support base 21 and the second support base 22 respectively. The pushing component 62 can be a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod, etc., preferably a hydraulic cylinder. The first support base 21 and the second support base 22 are each equipped with two pushing components 62. The two positioning plates 61 are respectively connected to the top of the two sets of pushing components 62. The two positioning grooves 63 are respectively opened at the bottom of the A-axis cradle 13 near both ends. When the first support base 21 and the second support base 22 move to the bottom of the two positioning grooves 63 respectively, the two sets of pushing components 62 can push the two positioning plates 61 into the interior of the two positioning grooves 63 to achieve positioning and limiting.

[0030] The working principle of the single-support five-axis cradle CNC turntable provided by this utility model is as follows: First, the workpiece is placed on the C-axis turntable 14. The sensing component 15 senses its weight. If it is too heavy, a signal is sent to the controller. The controller controls the second motor 33 to start, and drives the first threaded rod 31 to rotate through the first transmission belt 32. At the same time, the connecting plate 23 drives the first support seat 21 to move outward, and the gear disk 42 meshes with the rack 41 to rotate. This drives the second threaded rod 51 to rotate through the second transmission belt 43. The threaded block 52 drives one end of the two push rods 53 to move relative to each other, and gives the second support seat 22 a forward thrust until the first support seat 21 and the second support seat 22 move to the bottom of the two positioning grooves 63 respectively. Then, the pushing component 62 is activated to push the positioning plate 61 upward to the inside of the positioning groove 63. Then, processing can be carried out. The A-axis cradle 13 rotates. Through the connection limit between the positioning plate 61 and the positioning groove 63 and the support of the first support seat 21 and the second support seat 22 for the A-axis cradle 13, the load-bearing capacity of the A-axis cradle 13 is increased.

[0031] Compared with related technologies, the single-support five-axis cradle CNC turntable provided by this utility model has the following beneficial effects: This utility model provides a single-support five-axis cradle CNC turntable. The main body mechanism 1 can realize five-axis machining. When machining large-volume workpieces, the drive mechanism 3 can drive the support mechanism 2 to move out of the fixed seat 11. At the same time, the transmission mechanism 4 drives the push mechanism 5 to move the second support seat 22. The auxiliary mechanism 6 supports the bottom of the A-axis cradle 13, which improves the load-bearing capacity and thus improves the machining accuracy.

[0032] Second Embodiment Please refer to the following: Figure 4 Based on the single-support five-axis cradle CNC rotary table provided in the first embodiment of this application, the second embodiment of this application proposes another single-support five-axis cradle CNC rotary table. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0033] Specifically, the second embodiment of this application provides a single-support five-axis cradle CNC turntable that differs in that the fixed base 11 of the single-support five-axis cradle CNC turntable is provided with a sealing mechanism 7, the sealing mechanism 7 includes an air tank 71, the air tank 71 is installed inside the fixed base 11, one end of the air tank 71 is connected to an air supply pipe 72, and the surface of the air supply pipe 72 is connected to an air jet head 73.

[0034] The gas supply pipe 72 is ring-shaped, and multiple jet nozzles 73 are connected to the surface in an array. The gas tank 71 is connected to the gas supply pipe 72 through a pipe, and a one-way valve is installed on the surface of the pipe. By opening the valve, the gas inside the gas tank 71 can enter the gas supply pipe 72 through the pipe, and then be ejected through the jet nozzles 73 to form an annular air curtain.

[0035] The working principle of the single-support five-axis cradle CNC turntable provided by this utility model is as follows: During operation, the first motor 12 drives the A-axis cradle 13 to rotate. The gas inside the gas tank 71 is ejected from the jet nozzle 73 at the connection between the first motor 12 and the A-axis cradle 13 through the gas pipe 72 to form an air curtain, which prevents the iron filings and cutting fluid flowing to the connection from entering the gap.

[0036] Compared with related technologies, the single-support five-axis cradle CNC turntable provided by this utility model has the following beneficial effects: This utility model provides a single-support five-axis cradle CNC turntable. By arraying multiple jet heads 73 at the connection between the first motor 12 and the A-axis cradle 13, the gas inside the gas tank 71 can be ejected, preventing iron filings and cutting fluid from entering the gap and improving the sealing performance.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A single-support five-axis cradle CNC rotary table, characterized in that, include: The main structure includes a fixed base and a sensing component, the sensing component being used to sense the weight of the workpiece; The support mechanism includes a first support base and a second support base, which are movably connected inside the fixed base. The drive mechanism includes a first threaded rod, which is movably connected inside the fixed base; A transmission mechanism, the transmission mechanism including a gear disk, the gear disk being installed inside the fixed base; A pushing mechanism, the pushing mechanism including a pushing rod, the pushing rod being connected to the surfaces of the first support base and the second support base; An auxiliary mechanism includes a positioning plate connected inside the first support base and the second support base.

2. The single-support five-axis cradle CNC turntable according to claim 1, characterized in that, The fixed base is equipped with a first motor, one end of which is connected to an A-axis cradle. A C-axis turntable is mounted on the surface of the A-axis cradle, and the sensing component is installed inside the C-axis turntable.

3. The single-support five-axis cradle CNC rotary table according to claim 1, characterized in that, The first support base has connecting plates at both ends, the first threaded rod has a first transmission belt at one end, and a second motor is connected to the surface of the first transmission belt.

4. The single-support five-axis cradle CNC turntable according to claim 3, characterized in that, The gear disk is connected to the surface of one end of the connecting plate, a rack is connected inside the fixed base, the gear disk is connected to the surface of the rack, and a second transmission belt is connected to the surface of the connecting plate.

5. A single-support five-axis cradle CNC rotary table according to claim 1, characterized in that, The first support base is internally connected to a second threaded rod, and the surface of the second threaded rod is connected to a threaded block. The two ends of the push rod are connected to the surface of the threaded block.

6. A single-support five-axis cradle CNC turntable according to claim 2, characterized in that, The first support base and the second support base are equipped with a pushing component inside. The positioning plate is connected to the top of the pushing component. The bottom of the A-axis cradle is provided with a positioning groove, and the positioning plate is embedded in the positioning groove.

7. A single-support five-axis cradle CNC rotary table according to claim 1, characterized in that, The fixed base is equipped with a sealing mechanism, which includes a gas cylinder installed inside the fixed base. One end of the gas cylinder is connected to a gas supply pipe, and a jet nozzle is connected to the surface of the gas supply pipe.

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