A small turbine disc broaching support device

Abstract

The present invention relates to the field of broaching equipment, and specifically discloses a small turbine disc broaching support device, comprising a support table, an upper surface of the support table is installed with a workbench, the upper surface of the workbench is arranged with a workpiece and a pressing mechanism, the pressing mechanism cooperates with the workpiece, and the pressing mechanism is used to press the workpiece on the upper surface of the workbench, and also comprises a lifting mechanism and a broach, the lifting mechanism is fixedly connected to the support table through a bracket, the cutter is connected to the lifting mechanism, and the lifting mechanism is used to drive the cutter to rise and fall, the transmission mechanism cooperates with the lifting mechanism and is connected to the workbench; during use, through the setting of the transmission mechanism, the workbench can be driven to rotate during the process of the broach descending, so that the inclined mortise and tenon groove can be smoothly broached on the surface of the workpiece, and when the broach rises, the workbench can also be driven to move horizontally to form an avoidance when the broach is reset, and the whole process is carried out in an integrated manner, thereby improving the processing efficiency of the workpiece.

Description

Technical Field

[0001] The present invention relates to the field of broaching equipment, and more particularly to a small turbine disc broaching support device. Background Art

[0002] Broaching is a highly efficient machining method that uses a special broach to cut off a very thin layer of metal from the workpiece, tooth by tooth, so that the surface achieves higher dimensional accuracy and lower roughness.

[0003] During broaching, the broach cuts and shapes the machined surface in one go, so the broaching machine only has main motion and no feed motion. The chips of broaching are thin and the cutting motion is smooth, resulting in higher machining accuracy and smaller surface structure value.

[0004] When broaching a turbine disk, since the mortise and tenon of some turbine disks have a certain inclination angle and the broach often moves in a linear manner, the position of the turbine disk needs to be adjusted every time a mortise and tenon of the turbine disk is processed to prevent the turbine disk from causing the broach to be unable to reposition. The adjustment process mostly needs to be performed manually, which reduces processing efficiency. Summary of the Invention

[0005] The present invention provides a small turbine disc broaching support device to solve the above-mentioned technical problems in the related art.

[0006] According to one aspect of the present invention, a small turbine disc broaching support device is provided, comprising a support table, the upper surface of the support table is equipped with a workbench, the upper surface of the workbench is provided with a workpiece and a pressing mechanism, the pressing mechanism cooperates with the workpiece, the pressing mechanism is used to press the workpiece on the upper surface of the workbench, and also comprises a lifting mechanism and a broach, the lifting mechanism is fixedly connected to the support table through a bracket, the cutter is connected to the lifting mechanism, the lifting mechanism is used to drive the cutter to lift and lower, the transmission mechanism cooperates with the lifting mechanism and is connected to the workbench, and the driving mechanism is used to drive the workbench to rotate and move horizontally.

[0007] Furthermore: the pressing mechanism includes a pressing plate, a supporting plate and a pressing block. The pressing plate and the supporting plate are respectively arranged on the upper and lower sides of the workpiece, and the pressing blocks are arranged on both sides of the workbench and pressed on the upper surface of the pressing plate.

[0008] Furthermore, a plurality of rubber rollers are installed on a side of the pressing block close to the pressing plate, and the rubber rollers are rotatably connected to the pressing block.

[0009] Furthermore, the transmission mechanism includes an active component, a transmission component and a passive component. The active component is connected to the passive component through the transmission component, and the passive component is connected to the workbench.

[0010] Furthermore: the active part includes a rack, a driving gear and a transmission shaft. The rack and the driving gear are both arranged on the inner wall of the bracket and are meshed with each other. One end of the rack is connected to the lifting mechanism and is slidably connected to the bracket. The driving gear is rotatably connected to the inside of the bracket. One end of the transmission shaft extends into the inside of the bracket. A connecting shaft is installed on the outer wall of the transmission shaft and is fixedly connected to the driving gear.

[0011] Furthermore: the transmission part includes a reciprocating screw rod, a fixed rod and a sliding rod, the connecting shaft is connected to the fixed rod, the reciprocating screw rod is connected to the transmission shaft, one end of the fixed rod is connected to the bracket, one end of the sliding rod extends into the interior of the fixed rod from the other end, and is slidably connected to the fixed rod, the transmission shaft is arranged inside the fixed rod and the sliding rod, the reciprocating screw rod is arranged inside the sliding rod, and is engaged with the sliding rod.

[0012] Furthermore: a guide groove is opened inside the fixed rod, the groove direction of the guide groove is consistent with the rod length direction of the fixed rod, and a protrusion is installed on the end of the sliding rod extending into the fixed rod. The protrusion is located inside the guide groove and forms a sliding guide fit with the guide groove.

[0013] Furthermore: the passive component includes a first bevel gear at the bottom, a second bevel gear and a fixed plate, the first bevel gear engages with the second bevel gear, the first bevel gear is rotatably installed on the outer wall of the fixed plate, one end of the sliding rod passes through the fixed plate and is connected to the first bevel gear, the second bevel gear is installed at the bottom of the fixed rod and is rotatably connected to the support platform.

[0014] Furthermore: a turntable is installed at the bottom of the second bevel gear, a slider is installed for the rotation of the turntable, a slide groove is opened on the upper surface of the support platform, the slider is arranged on the inner wall of the slide groove and forms a sliding guide with the slide groove.

[0015] Furthermore, movable wedges are installed between the fixed rod and the bracket, between the connecting shaft and the fixed rod, and between the transmission shaft and the reciprocating screw rod. The movable wedges are used to control the rotation of the fixed rod and the reciprocating screw rod.

[0016] The beneficial effect of the present invention is that: during use, through the setting of the transmission mechanism, the workbench can be driven to rotate when the broach is lowered, so that the inclined mortise and tenon can be smoothly broached on the surface of the workpiece, and when the broach rises, the workbench can also be driven to move horizontally to avoid the broach when it is reset. The whole process is carried out in an integrated manner, thereby improving the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a small turbine disc broaching support device of the present invention;

[0018] Figure 2 This is a schematic diagram of the top view of the workbench structure of a small turbine disc broaching support device of the present invention;

[0019] Figure 3 It is a side view of a partial structural diagram of a small turbine disc broaching support device of the present invention;

[0020] Figure 4 This invention is a small turbine disc broaching support device Figure 3 A magnified view of point A in the figure;

[0021] Figure 5 This invention is a small turbine disc broaching support device Figure 4 Enlarged view of point B in .

[0022] In the figure: 1. Support table; 2. Workbench; 3. Workpiece; 4. Pressing mechanism; 41. Covering plate; 42. Support plate; 43. Pressing block; 5. Lifting mechanism; 6. Broach; 7. Bracket; 8. Transmission mechanism; 81. Active part; 811. Rack; 812. Active gear; 813. Transmission shaft; 814. Connecting shaft; 82. Transmission part; 821. Reciprocating screw; 822. Fixed rod; 823. Sliding rod; 83. Passive part; 831. First bevel gear; 832. Second bevel gear; 833. Fixed plate; 84. Movable wedge; 841. Protrusion; 843. Wedge body; 843. Spring. DETAILED DESCRIPTION

[0023] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0024] Example 1

[0025] like Figure 1-Figure 5 As shown, a small turbine disc broaching support device includes a support table 1, the upper surface of the support table 1 is installed with a workbench 2, the upper surface of the workbench 2 is arranged with a workpiece 3 and a pressing mechanism 4, the pressing mechanism 4 cooperates with the workpiece 3, and the pressing mechanism 4 is used to press the workpiece 3 on the upper surface of the workbench 2, and also includes a lifting mechanism 5 and a broach 6, the lifting mechanism 5 is fixedly connected to the support table 1 through a bracket 7, the cutter is connected to the lifting mechanism 5, and the lifting mechanism 5 is used to drive the cutter to rise and fall, the transmission mechanism 8 cooperates with the lifting mechanism 5 and is connected to the workbench 2, and the driving mechanism is used to drive the workbench 2 to rotate and move horizontally.

[0026] The pressing mechanism 4 includes a pressing plate 41, a supporting plate 42 and a pressing block 43. The pressing plate 41 and the supporting plate 42 are respectively arranged on the upper and lower sides of the workpiece 3. The pressing block 43 is arranged on both sides of the workbench 2 and pressed on the upper surface of the pressing plate.

[0027] A plurality of rubber rollers are mounted on a side of the pressing block 43 close to the pressing plate 41 , and the rubber rollers are rotatably connected to the pressing block 43 .

[0028] The transmission mechanism 8 includes an active member 81 , a transmission member 82 and a passive member 83 . The active member 81 is connected to the passive member 83 via the transmission member 82 , and the passive member 83 is connected to the workbench 2 .

[0029] The active member 81 includes a rack 811, a driving gear 812 and a transmission shaft 813. The rack 811 and the driving gear 812 are both arranged on the inner wall of the bracket 7 and are engaged with each other. One end of the rack 811 is connected to the lifting mechanism 5 and is slidably connected to the bracket 7. The driving gear 812 is rotatably connected to the inside of the bracket 7. One end of the transmission shaft 813 extends into the inside of the bracket 7. A connecting shaft 814 is installed on the outer wall of the transmission shaft 813 and is fixedly connected to the driving gear 812.

[0030] The transmission part includes a reciprocating screw rod 821, a fixed rod 822 and a sliding rod 823. The connecting shaft 814 is connected to the fixed rod 822, the reciprocating screw rod 821 is connected to the transmission shaft 813, one end of the fixed rod 822 is connected to the bracket 7, one end of the sliding rod 823 extends into the interior of the fixed rod 822 from the other end, and is slidably connected to the fixed rod 822, the transmission shaft 813 is arranged inside the fixed rod 822 and the sliding rod 823, and the reciprocating screw rod 821 is arranged inside the sliding rod 823 and engages with the sliding rod 823.

[0031] A guide groove is provided inside the fixed rod 822, and the direction of the guide groove is consistent with the rod length direction of the fixed rod 822. A protrusion is installed on the end of the sliding rod 823 extending into the fixed rod 822. The protrusion is located inside the guide groove and forms a sliding guide fit with the guide groove.

[0032] The passive component 83 includes a first bevel gear 831 at the bottom, a second bevel gear 832 and a fixed plate 833. The first bevel gear 831 engages with the second bevel gear 832. The first bevel gear 831 is rotatably mounted on the outer wall of the fixed plate 833. One end of the sliding rod 823 passes through the fixed plate 833 and is connected to the first bevel gear 831. The second bevel gear 832 is mounted on the bottom of the fixed rod 822 and is rotatably connected to the support platform 1.

[0033] A turntable is installed at the bottom of the second bevel gear 832, and a slider is installed for the rotation of the turntable. A slide groove is opened on the upper surface of the support platform 1, and the slider is arranged on the inner wall of the slide groove and forms a sliding guide with the slide groove.

[0034] Movable wedges 84 are installed between the fixed rod 822 and the bracket 7, between the connecting shaft 814 and the fixed rod 822, and between the transmission shaft 813 and the reciprocating screw rod 821. The movable wedges 84 are used to control the rotation of the fixed rod 822 and the reciprocating screw rod 821.

[0035] During use of the support device of the present invention, the support plate 42 is first placed on the upper surface of the workbench 2, and then the workpiece 3 to be processed is placed on the support plate 42. Finally, the cover plate 41 is pressed onto the workpiece 3. After pressing, the pressing block 43 is driven down and pressed onto the cover plate 41. The pressing block 43 can be driven by a linear drive device such as an electric telescopic rod, a cylinder, and a hydraulic cylinder.

[0036] When the workpiece 3 is installed, the lifting mechanism 5 drives the broach 6 and the rack 811 to descend synchronously. The lifting mechanism 5 can be a pressure block 43 and can be a linear drive device such as an electric telescopic rod, a cylinder and a hydraulic cylinder. When the broach 6 contacts the workpiece 3, the rack 811 contacts the gear. At this time, when the cutter continues to move and broaches the workpiece 3, the rack 811 meshes with the driving gear 812 and drives it to rotate forward, and drives the fixed rod 822 and the sliding rod 823 to rotate through the transmission shaft 813 and the connecting shaft 814. The sliding rod 823 drives the first bevel gear 831 to rotate, and the first bevel gear 831 meshes with the second bevel gear 832 to rotate. The second bevel gear 832 will drive the worktable 2 to rotate on the support platform 1. Therefore, when the broach 6 moves linearly and broaches the workpiece 3, the workpiece 3 rotates synchronously under the drive of the worktable 2, so that the broach 6 can smoothly broach an inclined mortise and tenon groove on the workpiece 3;

[0037] It should be noted that, since movable wedges 84 are installed between the fixed rod 822 and the bracket 7, between the connecting shaft 814 and the fixed rod 822, and between the transmission shaft 813 and the reciprocating screw rod 821, the movable wedge 84 is used to control the rotation of the fixed rod 822 and the reciprocating screw rod 821. The movable wedge 84 includes a protrusion 841, a wedge body 843 and a spring 843. In the movable wedge 84 between the fixed rod 822 and the bracket 7, the protrusion 841 is fixedly installed inside the reciprocating screw rod 821, the wedge body 843 and the spring 843 are installed inside one end of the transmission shaft 813 extending into the reciprocating screw rod 821. When the transmission shaft 813 rotates forward, the wedge The inclined surface of the block body 843 contacts the protrusion 841, and the wedge block body 843 is retracted into the transmission shaft 813 under the resistance of the protrusion 841. At the same time, the spring 843 contracts. After passing over the protrusion 841, the protrusion 841 extends again. Therefore, the forward rotation of the transmission shaft 813 will not drive the reciprocating screw 821 to rotate; when the transmission shaft 813 rotates in the reverse direction, the vertical surface of the wedge block body 843 contacts the protrusion 841. At this time, under the resistance of the protrusion 841, the reverse rotation of the wedge block body 843 will drive the protrusion 841 and the reciprocating screw 821 to rotate. Therefore, when the transmission shaft 813 rotates in the reverse direction, the reciprocating screw 821 will rotate synchronously with the transmission shaft 813.

[0038] When the connecting shaft 814 is driven by the transmission shaft 813 to rotate forward, the vertical surface of the wedge body 843 contacts the protrusion 841. Therefore, the forward rotation of the connecting shaft 814 will drive the fixed rotation. Conversely, when the connecting shaft 814 rotates in the opposite direction, the fixed rod 822 will not rotate with the connecting shaft 814 under the cooperation of the inclined surface of the wedge body 843 and the protrusion 841. In the movable wedge 84 between the fixed rod 822 and the bracket 7, the protrusion 841 is installed on the bracket 7, the wedge body 843 and the spring 843 are installed in the fixed rod 822. When the fixed rod 822 rotates forward with the connecting shaft 814, the inclined surface of the wedge body 843 When the cam 821 is in the forward and reverse direction, the cam 822 is in the forward and reverse direction, so the cam 822 does not rotate in the reverse direction on the support 7. When the cam 821 is in the forward and reverse direction, the cam 822 is in the forward and reverse direction, so the cam 822 does not rotate in the reverse direction on the support 7. When the cam 821 is in the forward and reverse direction, the cam 822 is in the forward and reverse direction, so the cam 822 does not rotate in the reverse direction on the support 7. When the cam 821 is in the forward and reverse direction, the cam 822 is in the forward and reverse direction, so the cam 822 is in the reverse ...

[0039] When the broach 6 needs to be reset after broaching, the lifting mechanism 5 drives the broach 6 to reset and move, and the rack 811 resets and moves synchronously in the bracket 7, and drives the driving gear 812 to rotate in the opposite direction. The reverse rotation of the driving gear 812 drives the reciprocating screw 821 to rotate with the cooperation of the movable wedge block 84. The reciprocating screw 821 engages with the protrusion set inside the sliding rod 823. Therefore, the rotation of the reciprocating screw 821 drives the sliding rod 823 to gradually retract into the fixed rod 822, and pulls the entire workbench 2 horizontally through the fixed plate 833, so that the workbench 2 and the workpiece 3 deviate from the reset and rising trajectory of the broach 6, avoiding affecting the reset of the broach 6. When the broach 6 is reset to a certain height, the reciprocating screw 821 drives the sliding rod 823 to reset horizontally and push the workbench 2 to reset. Then the lifting mechanism 5 drives the broach 6 to descend again, and the rack 811 descends synchronously, and reciprocates in sequence.

[0040] The embodiment of the present embodiment is described above in conjunction with the accompanying drawings, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms without departing from the purpose of this embodiment and the scope of protection of the claims, all of which are protected by this embodiment.

Claims

1. A small turbine disc broaching support device, characterized in that: The invention comprises a support platform (1), an upper surface of the support platform (1) is provided with a workbench (2), an upper surface of the workbench (2) is provided with a workpiece (3) and a pressing mechanism (4), the pressing mechanism (4) cooperates with the workpiece (3), and the pressing mechanism (4) is used to press the workpiece (3) on the upper surface of the workbench (2), and further comprises a lifting mechanism (5) and a broach (6), the lifting mechanism (5) is fixedly connected to the support platform (1) through a bracket (7), the cutter is connected to the lifting mechanism (5), and the lifting mechanism (5) is used to drive the cutter to move up and down, a transmission mechanism (8) cooperates with the lifting mechanism (5) and is connected to the workbench (2), and the transmission mechanism is used to drive the workbench (2) to rotate horizontally; The transmission mechanism (8) includes an active member (81), a transmission member (82) and a passive member (83), wherein the active member (81) is connected to the passive member (83) via the transmission member (82), and the passive member (83) is connected to the workbench (2); The active member (81) includes a rack (811), a driving gear (812) and a transmission shaft (813). The rack (811) and the driving gear (812) are both arranged on the inner wall of the bracket (7) and mesh with each other. One end of the rack (811) is connected to the lifting mechanism (5) and is slidably connected to the bracket (7). The driving gear (812) is rotatably connected to the inside of the bracket (7). One end of the transmission shaft (813) extends into the inside of the bracket (7). A connecting shaft (814) is installed on the outer wall of the transmission shaft (813) and is fixedly connected to the driving gear (812). The transmission member (82) includes a reciprocating screw rod (821), a fixed rod (822) and a sliding rod (823); the connecting shaft (814) is connected to the fixed rod (822); the reciprocating screw rod (821) is connected to the transmission shaft (813); one end of the fixed rod (822) is connected to the bracket (7); one end of the sliding rod (823) extends from the other end of the fixed rod (822) into the interior thereof and is slidably connected to the fixed rod (822); the transmission shaft (813) is arranged inside the fixed rod (822) and the sliding rod (823); the reciprocating screw rod (821) is arranged inside the sliding rod (823) and meshes with the sliding rod (823); A guide groove is provided inside the fixed rod (822), and the direction of the guide groove is consistent with the length direction of the fixed rod (822). A protrusion is installed on one end of the sliding rod (823) that extends into the fixed rod (822). The protrusion is located inside the guide groove and forms a sliding guide with the guide groove. The passive component (83) includes a first bevel gear (831), a second bevel gear (832) and a fixed plate (833). The first bevel gear (831) engages with the second bevel gear (832). The first bevel gear (831) is rotatably mounted on the outer wall of the fixed plate (833). One end of the sliding rod (823) passes through the fixed plate (833) and is connected to the first bevel gear (831). The second bevel gear (832) is mounted on the bottom of the fixed rod (822) and is rotatably connected to the support platform (1). A turntable is installed at the bottom of the second bevel gear (832), and a slider is installed for the rotation of the turntable. A slide groove is opened on the upper surface of the support platform (1), and the slider is arranged on the inner wall of the slide groove and forms a sliding guide with the slide groove.

2. A small turbine disc broaching support device according to claim 1, characterized in that: The pressing mechanism (4) comprises a pressing plate (41), a supporting plate (42) and a pressing block (43); the pressing plate (41) and the supporting plate (42) are respectively arranged on the upper and lower sides of the workpiece (3); the pressing block (43) is arranged on both sides of the workbench (2) and pressed on the upper surface of the pressing plate.

3. A small turbine disc broaching support device according to claim 2, characterized in that: A plurality of rubber rollers are installed on one side of the pressing block (43) close to the pressing cover plate (41), and the rubber rollers are rotatably connected to the pressing block (43).

4. A small turbine disc broaching support device according to claim 3, characterized in that: Movable wedges (84) are installed between the fixed rod (822) and the bracket (7), between the connecting shaft (814) and the fixed rod (822), and between the transmission shaft (813) and the reciprocating screw rod (821). The movable wedges (84) are used to control the rotation of the fixed rod (822) and the reciprocating screw rod (821).

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