A workpiece platform mechanism

Abstract

The present invention discloses a workpiece platform mechanism, which comprises a platform base, a workpiece spindle supporting mechanism and a workpiece supporting mechanism. Two workpiece spindle supporting mechanisms arranged opposite to each other are arranged on the platform base. At least two workpiece supporting mechanisms are arranged between the two workpiece spindle supporting mechanisms on the platform base. By arranging a slidable workpiece spindle supporting mechanism and a workpiece supporting mechanism on the platform base, an aircraft engine turbine blade is connected to a turbine blade processing spindle outside a machine tool. By arranging a workpiece spindle support horizontal driving mechanism on the workpiece spindle supporting mechanism and a support frame lifting mechanism on the workpiece supporting mechanism, the workpiece and the workpiece spindle are adjusted to the same height and the same axis, so that the workpiece and the workpiece processing spindle can be accurately installed.

Description

Technical Field

[0001] The invention relates to the technical field of turbine machining, and in particular to a workpiece platform mechanism. Background Art

[0002] At present, China is in urgent need of a large number of advanced aircraft engines, which require high performance, high reliability and long life. As an important component of aircraft engines, the turbine rotor is responsible for sucking high-temperature and high-pressure airflow into the gas engine with high-speed rotating blades to maintain the operation of the engine. In order to ensure long-term stable operation under extreme conditions of high temperature and high pressure, it is necessary to install it on the machine tool during the processing of the aircraft engine, and grind the blade tip of the aircraft engine with a grinding wheel during the high-speed rotation to ensure the processing accuracy of the turbine rotor. Because the workpiece support mechanism cannot be installed inside the machine tool, it is not convenient to directly install the turbine rotor with the workpiece spindle on the machine tool. Summary of the invention

[0003] The present invention provides a workpiece platform mechanism to overcome the technical problem that a workpiece support mechanism cannot be installed inside a machine tool and is inconvenient to be directly installed with a workpiece spindle on the machine tool.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A workpiece platform mechanism, comprising: a platform base, a workpiece spindle support mechanism and a workpiece support mechanism, wherein the platform base is provided with two workpiece spindle support mechanisms arranged opposite to each other, and at least two workpiece support mechanisms are provided on the platform base between the two workpiece spindle support mechanisms;

[0006] The workpiece spindle support mechanism includes a workpiece spindle support, a support block and a workpiece spindle support horizontal drive mechanism, the workpiece spindle support is arranged on the platform base, the workpiece spindle support is provided with a support block, and the workpiece spindle support horizontal drive mechanism is arranged on the workpiece spindle support and can drive the workpiece spindle support to move horizontally on the platform base;

[0007] The workpiece supporting mechanism includes a supporting frame base, a supporting frame, a supporting block and a supporting frame lifting mechanism. The supporting frame base is arranged on the platform base, the supporting frame is provided on the supporting frame base, the supporting frame is provided on the supporting block, and the supporting frame lifting mechanism is arranged on the supporting frame base and can drive the supporting frame to rise and fall.

[0008] Furthermore, a linear rail and a rack are provided on the platform base, and the horizontal driving mechanism of the workpiece spindle support includes a first handwheel, a core shaft and a gear. One end of the core shaft extends into the interior of the workpiece spindle support, and the gear is connected to the core shaft through a expansion sleeve. The other end of the core shaft passes through a handle bearing seat and is connected to the first handwheel. A first fixed handle is provided on the handle bearing seat, and the rack is meshed with the gear.

[0009] Furthermore, the support frame lifting mechanism includes a second hand wheel, a support frame core shaft, a wedge block and a screw rod, the support frame core shaft extends into a cavity formed by connecting the support frame base and the support seat, a support sleeve is fixed to the other end of the support frame core shaft, a wedge block is fixed to the support frame core shaft by a screw, a screw rod fixed to a connecting plate is provided above the wedge block, the connecting plate is fixed to the bottom of the support frame, the second hand wheel is fixed to the support sleeve, a handle fixing seat is provided between the support sleeve and the support frame base, and a second fixed handle is provided on the handle fixing seat.

[0010] Furthermore, the workpiece support mechanism is also provided with a locking mechanism, and the locking mechanism includes a fixing bolt, and the fixing bolt passes through the support frame base and contacts with a fixed pressure plate on the platform base.

[0011] Furthermore, the workpiece spindle support mechanism and the bottom of the workpiece support mechanism are each provided with four adjustment mechanisms, and the adjustment mechanism includes a slider and a slider pressure block, the slider is slidably connected to the linear rail on the platform base, and the slider pressure block is fixed to the outer side of the slider by screws.

[0012] Furthermore, a handwheel locking block is fixed to the middle of the first handwheel and the second handwheel by screws.

[0013] Furthermore, a circular arc support is provided on the top of the workpiece spindle support, and a positioning block is provided on the circular arc support.

[0014] Furthermore, outer anti-collision blocks are provided at both ends of the platform base, and nylon blocks are fixed on the inner sides of the outer anti-collision blocks.

[0015] Furthermore, two inner anti-collision blocks are provided between the two workpiece supporting mechanisms, nylon blocks are fixed to the outer sides of the inner anti-collision blocks, and a certain distance is provided between the two inner anti-collision blocks.

[0016] Beneficial effects: The present invention provides a workpiece platform mechanism, which is used for connecting an aircraft engine turbine rotor with a machining spindle outside a machine tool by arranging a slidable workpiece spindle support mechanism and a workpiece support mechanism on a platform base; a workpiece spindle support horizontal drive mechanism is provided on the workpiece spindle support mechanism, and a support frame lifting mechanism is provided on the workpiece support mechanism, so that the workpiece and the workpiece spindle are adjusted to the same height and the same axis, so that the workpiece and the workpiece machining spindle can be accurately installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the structure of a workpiece platform mechanism disclosed in the present invention;

[0019] Figure 2 A top view of a workpiece platform mechanism disclosed in the present invention;

[0020] Figure 3 It is a side view of a workpiece spindle support mechanism of a workpiece platform mechanism disclosed in the present invention;

[0021] Figure 4 It is a side view of a workpiece support mechanism of a workpiece platform mechanism disclosed in the present invention;

[0022] Figure 5 It is a cross-sectional view of the middle part of a workpiece platform mechanism disclosed in the present invention;

[0023] Figure 6 A cross-sectional view of a workpiece platform mechanism driving structure disclosed in the present invention;

[0024] Figure 7 It is a cross-sectional view of a lifting structure of a workpiece platform mechanism disclosed in the present invention;

[0025] In the figure: 1. platform base, 2. workpiece spindle support mechanism, 3. workpiece support mechanism, 4. linear rail, 5. rack fixing block, 6. rack, 7. adjustment foot, 8. slider, 9. workpiece spindle support horizontal drive mechanism, 10. gear, 11. support frame lifting mechanism, 12. guide pressure plate, 13. connecting plate, 14. support frame, 15. expansion sleeve, 16. oil-free bushing, 17. slider pressure block, 18. arc support, 19. positioning block, 20. support block, 21. outer anti-collision plate, 22. nylon block, 23. inner anti-collision block, 24. Fixed pressure plate, 25, handwheel locking block, 26, support seat, 27, fixed seat pressure cover, 28, workpiece spindle support, 901, first handwheel, 902, core shaft, 903, handle bearing seat, 904, first fixed handle, 1101, second handwheel, 1102, support frame core shaft, 1103, wedge block, 1104, support sleeve, 1105, support frame base, 1106, screw, 1107, handle fixing seat, 1108, second fixed handle, 1109, fixing bolt, 1110, flat key, 1111, limit screw. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] This embodiment provides a workpiece platform mechanism, such as Figure 1 and Figure 2 As shown, it comprises: a platform base 1, a workpiece spindle supporting mechanism 2 and a workpiece supporting mechanism 3. The platform base 1 is provided with two workpiece spindle supporting mechanisms 2 which are arranged opposite to each other. At least two workpiece supporting mechanisms 3 are provided between the two workpiece spindle supporting mechanisms 2 on the platform base 1. It should be noted that this device is used to support the turbine rotor of an aircraft engine and to process the ends of high-speed rotating turbine blades. The workpiece supporting mechanism is mainly used to support the workpiece. The workpiece spindle supporting mechanisms on both sides respectively support the workpiece spindle at the power end and the workpiece spindle at the support end. The specific usage method is: first, the workpiece is supported by the workpiece supporting mechanism and adjusted to the same height as the workpiece spindle supporting mechanism. The workpiece spindle supporting mechanisms on both sides are moved to the two ends of the workpiece. The two ends of the workpiece are respectively connected to the workpiece spindle at the power end and the workpiece spindle at the support end through static pressure clamps.

[0028] The workpiece spindle support mechanism 2 includes a workpiece spindle support 28, a support block 20 and a workpiece spindle support horizontal drive mechanism 9. The workpiece spindle support 28 is arranged on the platform base 1. The workpiece spindle support 28 is provided with a support block 20. The workpiece spindle support horizontal drive mechanism 9 is arranged on the workpiece spindle support 28 and can drive the workpiece spindle support 28 to move horizontally on the platform base 1.

[0029] The workpiece supporting mechanism 3 includes a supporting frame base 1105, a supporting frame 14, a supporting block 20 and a supporting frame lifting mechanism 11. The supporting frame base 1105 is arranged on the platform base 1, the supporting frame 14 is arranged on the supporting frame base 1105, the supporting block 20 is arranged on the supporting frame 14, and the supporting frame lifting mechanism 11 is arranged on the supporting frame base 1105 and can drive the supporting frame 14 to rise and fall.

[0030] Two linear rails 4 are provided on the upper surface of the platform base 1, and a rack fixing block 5 is provided between the linear rails 4. A rack 6 is fixed on the rack fixing block 5. An adjustment foot 7 is also provided at the bottom of the platform base 1. A fixed pressure plate 24 is provided on the transverse axis of the platform base 1. By providing two linear rails 4 on the platform base 1, the workpiece spindle support mechanism 2 and the workpiece support mechanism 3 can slide left and right on the linear rails 4. By adjusting the positions of the workpiece spindle support mechanism 2 and the workpiece support mechanism 3, workpieces to be processed of different lengths can be supported; by providing a rack 6 between the linear rails 4, the workpiece spindle support mechanism 2 can be moved left and right on the rack by shaking the first hand wheel 901. By providing a rack fixing block 5 to fix the rack 6, the stability of the rack 6 can be increased to prevent the rack from being loosened due to excessive force, thereby affecting the processing accuracy of the workpiece to be processed; an adjustment foot 7 is provided at the bottom of the platform base 1, and the horizontality, straightness and distortion of the platform base 1 can be adjusted by adjusting the foot 7;

[0031] The bottom of the workpiece spindle support mechanism 2 is slidably connected to the linear rail 4 through a slider 8, and the workpiece spindle support mechanism 2 is also provided with a workpiece spindle support horizontal driving mechanism 9, and the workpiece spindle support horizontal driving mechanism 9 is provided with a gear 10, and the workpiece spindle support mechanism 2 is meshed with the rack 6 through the gear 10 to realize the left and right movement of the workpiece spindle support mechanism;

[0032] The bottom of the workpiece support mechanism 3 is slidably connected to the linear rail 4 through a slider 8. The workpiece support mechanism 3 is also provided with a support frame lifting mechanism 11. The support frame lifting mechanism 11 is in contact with a guide pressure plate 12. The guide pressure plate 12 is connected to a support frame 14 through a connecting plate 13. The workpiece support mechanism 3 can be moved up and down through the support frame lifting mechanism 11.

[0033] In a specific embodiment, Figure 6 As shown, the workpiece spindle support horizontal drive mechanism 9 includes a first hand wheel 901 and a mandrel 902, one end of the mandrel 902 extends into the workpiece spindle support mechanism 2, and the other end of the mandrel 902 passes through the handle bearing seat 903, the outer end of the mandrel 902 is fixedly connected to the first hand wheel 901 through an oil-free bushing 16, the other end of the mandrel 902 passes through the oil-free bushing 16 and the gear 10 and the expansion sleeve 15, and the handle bearing seat 903 is provided with The first fixed handle 904 is provided with an oil-free bushing 16 for supporting and lubricating the core shaft. The specific moving method is to rotate the first hand wheel 901, and the first hand wheel 901 drives the core shaft 902 to rotate. Since the gear 10 and the core shaft 902 are fixed on the core shaft 902 through the expansion sleeve 15, the gear 10 rotates with the core shaft 902. Since the gear 10 is engaged with the rack 6 on the platform base 1, when the first hand wheel 901 is rotated, the workpiece spindle support mechanism 2 will move left and right on the platform base 1.

[0034] In a specific embodiment, Figure 7As shown, the support frame lifting mechanism 11 includes a second hand wheel 1101, a support frame core shaft 1102 wedge 1103, one end of the support frame core shaft 1102 is fixed on the support sleeve 1104, and the other end of the support frame core shaft 1102 is fixed on the support frame base 1105, and the support frame base 1105 and the support seat 26 are fixed by the fixed seat pressure cover 27. The bottom of the support frame base 1105 is provided with a groove, and the two sides of the support frame core shaft 1102 of the groove part are supported by oil-free bushings 16, and on the middle of the two oil-free bushings 16, the support frame core shaft 1102 is provided with a second hand wheel 1101, and the support frame core shaft 1102 is provided with a second hand wheel 1101, and the support frame core shaft 1102 is provided with a second hand wheel 1101, and the support frame core shaft 1102 is provided with a second hand wheel 1101. A wedge block 1103 is fixed by screws, and a limit screw 1111 is also provided on the left side of the wedge block 1103 to prevent the screw rod 1106 from falling on the wedge block 1103 during the movement of the support frame core shaft 1102. A screw rod 1106 fixed on the connecting plate 13 is provided above the wedge block 1103. The screw rod 1106 is connected to the connecting plate 13 by threads, and the screw rod 1106 can also realize the lifting and lowering of the connecting plate 13 by threads. A screw for tightening is provided on the side of the screw rod 1106 to prevent slippage between the screw rod 1106 and the connecting plate 13. The second hand wheel 1 101 is fixed on the support sleeve 1104, and a common flat key 1110 is provided between the second hand wheel 1101 and the support sleeve 1104, which is used to realize synchronous rotation between the support sleeve 1104 and the second hand wheel 1101. A handle fixing seat 1107 is provided between the support sleeve 1104 and the support frame base 1105, and a second fixed handle 1108 is provided on the handle fixing seat 1107. It should be noted that the workpiece support mechanism 3 is moved left and right on the linear rail 4 by external force, and the specific lifting function is lifted and lowered by shaking the second hand wheel 1101. The specific lifting method The formula is that the support sleeve 1104 is connected to the support frame core shaft 1102 by a threaded connection, and the support sleeve 1104 is fixedly connected to the second hand wheel 1101. The support sleeve 1104 is rotated by rotating the second hand wheel 1101. During the rotation of the support sleeve 1104, the support frame core shaft 1102 will move left and right in the lateral direction. Because a wedge block 1103 in contact with the screw 1106 on the connecting plate 13 is fixed on the support frame core shaft 1102, during the left and right movement of the support frame core shaft 1102, the screw 1106 will also move left and right on the wedge block 1103, thereby realizing the lifting and lowering of the workpiece support mechanism 3.

[0035] In a specific embodiment, Figure 5 As shown, the workpiece support mechanism 3 is also provided with a locking mechanism, and the locking mechanism includes a fastening bolt 1109. A fixing bolt 1109 is provided in the middle of the left side of the support frame base 1105. The fixing bolt 1109 arranged on the support frame base 1105 is in contact with the fixed pressure plate 24 on the platform base 1. By tightening the fixing bolt 1109, the fixed pressure plate 24 is pressed to determine the lateral position and prevent the workpiece support mechanism from moving.

[0036] In a specific embodiment, four adjustment mechanisms are provided at the bottom of the workpiece spindle support mechanism 2 and the workpiece support mechanism 3, and the adjustment mechanism includes a slider 8 and a slider pressure block 17. The slider pressure block 17 is fixed to the outer side of the slider 8 by screws. Since sliders 8 are provided at the four corners of the bottom of the workpiece spindle support mechanism 2 and the workpiece support mechanism 3, the slider 8 is slidably connected to the linear rail 4. By adjusting the tightness of the slider pressure block 17 by screws, the coaxiality and straightness of the workpiece spindle support mechanism 2 and the workpiece support mechanism 3 can be adjusted.

[0037] In a specific embodiment, a handwheel locking block 25 is fixed to the middle of the first handwheel 901 and the second handwheel 1101 by screws. The workpiece spindle support mechanism 2 and the workpiece support mechanism 3 are adjusted to meet the coaxial requirement. By tightening the handwheel locking block 25 with screws, it can be ensured that the first handwheel 901 and the second handwheel 1101 will not loosen.

[0038] In a specific embodiment, Figure 3 As shown, the top of the workpiece spindle supporting mechanism 2 is an arc support 18, and a positioning block 19 is provided on the arc support 18 for fixing the spindle of the workpiece to be processed.

[0039] In a specific embodiment, a support block 20 is provided on the support frame 14 of the workpiece support mechanism 3 for supporting the workpiece to be processed.

[0040] In a specific embodiment, Figure 4 As shown, outer anti-collision blocks 21 are provided at both ends of the platform base 1, and nylon blocks 22 are fixed on the inner side of the outer anti-collision blocks 21. By providing outer anti-collision blocks 21 on both sides of the platform base, the workpiece spindle support mechanism 2 is prevented from detaching from the linear rail 4.

[0041] In a specific embodiment, two inner anti-collision blocks 23 are provided between the two workpiece support mechanisms 3, and a nylon block 22 is fixed to the outer side of the inner anti-collision block 23. There is a certain distance between the two inner anti-collision blocks 23. By arranging the inner anti-collision blocks 23 between the workpiece support mechanisms 3, the two workpiece support mechanisms 3 can be prevented from colliding.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A workpiece platform mechanism, characterized in that: include: A platform base (1), a workpiece spindle support mechanism (2) and a workpiece support mechanism (3), wherein the platform base (1) is provided with two workpiece spindle support mechanisms (2) arranged opposite to each other, and at least two workpiece support mechanisms (3) are provided on the platform base (1) between the two workpiece spindle support mechanisms (2); The workpiece spindle support mechanism (2) comprises a workpiece spindle support (28), a support block (20) and a workpiece spindle support horizontal drive mechanism (9); the workpiece spindle support (28) is arranged on the platform base (1); the workpiece spindle support (28) is provided with a support block (20); and the workpiece spindle support horizontal drive mechanism (9) is arranged on the workpiece spindle support (28) and can drive the workpiece spindle support (28) to move horizontally on the platform base (1); The workpiece support mechanism (3) comprises a support frame base (1105), a support frame (14), a positioning block (19) and a support frame lifting mechanism (11); the support frame base (1105) is arranged on the platform base (1); the support frame (14) is arranged on the support frame base (1105); the support block (20) is arranged on the support frame (14); and the support frame lifting mechanism (11) is arranged on the support frame base (1105) and is capable of driving the support frame (14) to rise and fall; The platform base (1) is provided with a linear rail (4) and a rack (6); the workpiece spindle support horizontal drive mechanism (9) comprises a first hand wheel (901), a core shaft (902) and a gear (10); one end of the core shaft (902) extends into the interior of the workpiece spindle support (28); the gear (10) is connected to the core shaft (902) via an expansion sleeve (15); the other end of the core shaft (902) passes through a handle bearing seat (903) and is connected to the first hand wheel (901); a first fixed handle (904) is provided on the handle bearing seat (903); and the rack (6) is meshed with the gear (10); The support frame lifting mechanism (11) comprises a second hand wheel (1101), a support frame core shaft (1102), a wedge block (1103) and a screw rod (1106); the support frame core shaft (1102) extends into a cavity formed by connecting the support frame base (1105) and the support seat (26); a support sleeve (1104) is fixed to the other end of the support frame core shaft (1102); and a wedge block (1103) is fixed to the support frame core shaft (1102) by means of screws. A screw rod (1106) fixed to a connecting plate (13) is provided above the wedge block (1103); the connecting plate (13) is fixed below the support frame (14); the second hand wheel (1101) is fixed to the support sleeve (1104); a handle fixing seat (1107) is provided between the support sleeve (1104) and the support frame base (1105); and a second fixed handle (1108) is provided on the handle fixing seat (1107).

2. A workpiece platform mechanism according to claim 1, characterized in that: The workpiece support mechanism (3) is further provided with a locking mechanism, the locking mechanism comprising a fixing bolt (1109), the fixing bolt (1109) passing through the support frame base (1105) and contacting a fixed pressure plate (24) on the platform base (1).

3. A workpiece platform mechanism according to claim 1, characterized in that: The bottom of the workpiece spindle support mechanism (2) and the workpiece support mechanism (3) are each provided with four adjustment mechanisms, the adjustment mechanisms comprising a slider (8) and a slider pressure block (17), the slider (8) being slidably connected to a linear rail (4) on the platform base (1), and the slider pressure block (17) is fixed to the outer side of the slider (8) by screws.

4. A workpiece platform mechanism according to claim 1, characterized in that: A handwheel locking block (25) is fixed to the middle of each of the first handwheel (901) and the second handwheel (1101) via screws.

5. A workpiece platform mechanism according to claim 1, characterized in that: A circular arc support (18) is also provided on the top of the workpiece spindle support (28), and a positioning block (19) is provided on the circular arc support (18).

6. A workpiece platform mechanism according to claim 1, characterized in that: Outer anti-collision blocks (21) are provided at both ends of the platform base (1), and nylon blocks (22) are fixed inside the outer anti-collision blocks (21).

7. A workpiece platform mechanism according to claim 1, characterized in that: Two inner anti-collision blocks (23) are provided between the two workpiece support mechanisms (3), a nylon block (22) is fixed to the outer side of the inner anti-collision blocks (23), and a certain distance is provided between the two inner anti-collision blocks (23).

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