Flywheel drilling tool

Abstract

The flywheel drilling tool is characterized in that a center hole tensioning and positioning device, a positioning column, a plurality of groups of hydraulic pressure plate assemblies, a plurality of guide anti-collision assemblies and a plurality of positioning support columns are arranged on a tool bottom plate, the tensioning and positioning device is fixedly connected with the tool bottom plate, the positioning column is fixedly connected, and the hydraulic pressure plate assemblies are fixedly connected with the positioning support columns. The hydraulic pressing plate assemblies are circumferentially distributed around the center of the center hole tensioning and positioning device, the positioning supporting columns are circumferentially distributed around the center of the center hole tensioning and positioning device, the positioning supporting columns and the hydraulic pressing plate assemblies are in one-to-one correspondence, and the hydraulic pressing plate assemblies are fixed to the tool bottom plate and can be adjusted in the radial direction. The guide anti-collision assembly is fixed to the tool bottom plate and is adjustable in position, and the positioning supporting column is fixed to the tool bottom plate and is adjustable in radial position. According to the flywheel drilling tool, flywheel products of different types and sizes can be positioned and clamped by changing the positions of the hydraulic pressing plate assembly, the guiding anti-collision assembly and the positioning supporting column, compatibility is high, and production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a flywheel drilling tooling. Background Art

[0002] The engine flywheel is installed at the power output end of the engine. Its function is to store part of the energy generated during the power stroke of the engine to overcome the resistance of other auxiliary strokes, make the crankshaft rotate evenly, and improve the engine's ability to overcome short-term overloads, making it easier for the vehicle to start. In flywheel processing, it is necessary to drill holes on the flywheel. Usually, the flywheel is first positioned, clamped and fixed to the tooling, and then drilled using drilling equipment.

[0003] At present, the compatibility of tooling for positioning and clamping flywheels is low. When drilling holes in flywheel products of different models and sizes (especially different radial sizes), it is usually necessary to replace most of the parts of the tooling, or even the entire tooling, which is costly. Utility Model Content

[0004] In order to overcome the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a flywheel drilling processing tooling, which can be suitable for the positioning and clamping of flywheel products of different models and sizes, has high compatibility, and can reduce production costs.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A flywheel drilling tool, comprising a tool base plate, characterized in that:

[0007] The tooling bottom plate is provided with a center hole tensioning and positioning device, a positioning column, multiple groups of hydraulic pressure plate assemblies, multiple guide anti-collision assemblies and multiple positioning support columns.

[0008] The tensioning and positioning device is fixedly connected to the tooling bottom plate, and the positioning column is fixedly connected.

[0009] Multiple groups of hydraulic pressure plate assemblies are distributed along the circumference around the center of the center hole tensioning and positioning device.

[0010] A plurality of positioning support columns are distributed along the circumference around the center of the center hole tensioning and positioning device, and the positioning support columns correspond to the hydraulic pressure plate assemblies one by one.

[0011] The hydraulic pressure plate assembly is fixed on the tooling base plate and can be adjusted in radial position, the guide anti-collision assembly is fixed on the tooling base plate and can be adjusted in radial position, and the positioning support column is fixed on the tooling base plate and can be adjusted in radial position.

[0012] Preferably, the guide anti-collision assembly comprises a guide anti-collision rod and a guide seat, wherein the guide anti-collision rod is fixedly connected to the guide seat.

[0013] The hydraulic pressure plate assembly includes a cylinder seat, a hydraulic angular cylinder and a pressure plate. The hydraulic angular cylinder is fixedly connected to the cylinder seat, and the pressure plate is movably connected to the hydraulic angular cylinder. The hydraulic angular cylinder can drive the pressure plate to move up and down, and the pressure plate can rotate relative to the hydraulic angular cylinder.

[0014] Preferably: a plurality of first adjustment slot hole groups are provided on the tooling base plate, each of the first adjustment slot hole groups is provided with two parallel first adjustment slot holes, a connecting hole corresponding to the first adjustment slot hole is provided on the cylinder seat, and the first adjustment slot hole and the connecting hole are connected by bolts and nuts.

[0015] Preferably, the tooling bottom plate is provided with a plurality of groups of second adjustment slot holes, each group of the second adjustment slot holes is provided with two parallel second adjustment slot holes, and the two second adjustment slot holes in each group are located between the two first adjustment slot holes in each group.

[0016] A threaded hole corresponding to the second adjustment slot hole is formed at the bottom of the positioning support column, and the second adjustment slot hole and the threaded hole are connected by bolts.

[0017] Preferably, at least two auxiliary positioning support columns are fixed on the tooling bottom plate, the auxiliary positioning support columns are arranged on the same circumference as the positioning support columns, and the auxiliary positioning support columns have the same structure as the positioning support columns.

[0018] Preferably: a third adjustment slot is provided on the guide seat of the guide anti-collision assembly, a threaded hole is provided on the tooling base plate, at least two threaded holes are provided on the tooling base plate corresponding to each third adjustment slot, and the third adjustment slot is connected to the threaded hole by bolts.

[0019] Preferably, a threaded connecting rod portion is provided at the bottom end of the guide anti-collision rod, and a threaded hole connected to the threaded connecting rod portion is provided on the guide seat.

[0020] Preferably, the center hole tightening and positioning device comprises an expansion sleeve conical core seat, a spring injection expansion sleeve, a power device, a pull rod assembly and a reset assembly, the expansion sleeve conical core seat comprises a conical portion, the spring injection expansion sleeve is sleeved on the conical portion, and the inner wall of the spring injection expansion sleeve has the same slope as the outer wall of the conical portion.

[0021] The pull rod assembly includes a pull rod and a cover, the pull rod and the cover are fixedly connected, and the pull rod is connected to the power device.

[0022] The reset assembly includes a limit connecting block and a limit long hole opened on the expansion sleeve cone core seat, the limit connecting block is located in the limit long hole and is fixedly connected to the pull rod, and the limit connecting block is located below the spring injection expansion sleeve.

[0023] When the power device drives the pull rod to move downward, the blocking cover pushes the spring glue injection expansion sleeve to move downward along the outer wall of the tapered portion, so that the spring glue injection expansion sleeve moves radially outward to tighten and position the flywheel.

[0024] When the power device drives the pull rod to move upward, the limiting connection block moves upward in the limiting long hole and pushes the spring glue injection expansion sleeve to return to its original position.

[0025] Preferably, the center hole tensioning and positioning device comprises a gasket ring, which is sleeved on the expansion sleeve cone seat, and the gasket ring is located below the spring injection expansion sleeve and above the limit connecting block.

[0026] Preferably, the flywheel drilling tool further comprises an anti-error column, and the anti-error column and the positioning column are fixed on the expansion sleeve cone seat.

[0027] After adopting the above technical solution, the beneficial effects of the utility model are:

[0028] The flywheel drilling tooling of the utility model has multiple groups of hydraulic pressure plate assemblies distributed along the circumference around the center of the center hole tensioning and positioning device, multiple positioning support columns distributed along the circumference around the center of the center hole tensioning and positioning device, and the positioning support columns correspond to the hydraulic pressure plate assemblies one by one to position, support and clamp the flywheel. The hydraulic pressure plate assembly is fixed on the tooling base plate and its radial position is adjustable, the guide anti-collision assembly is fixed on the tooling base plate and its position is adjustable, and the positioning support columns are fixed on the tooling base plate and its radial position is adjustable. Therefore, flywheel products of different models and sizes can be positioned and clamped by changing the positions of the hydraulic pressure plate assembly, the guide anti-collision assembly and the positioning support columns, which has high compatibility and can reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the flywheel drilling tooling of the utility model;

[0030] Figure 2 yes Figure 1 A top view of the flywheel drilling tooling;

[0031] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the central center hole tensioning and positioning device;

[0032] Figure 4 It is a cross-sectional schematic diagram of the guide anti-collision rod in the utility model;

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the positioning support column in the utility model;

[0034] Figure 6 It is a schematic diagram of the flywheel drilling tooling of the utility model for clamping and positioning the flywheel;

[0035] In the figure: 1. tooling base plate; 101. first adjustment slot; 102. second adjustment slot; 2. center hole tensioning and positioning device; 201. expansion sleeve cone seat; 2011. conical part; 2012. limiting long hole; 202. spring injection expansion sleeve; 203. pull rod; 204. baffle; 205. limiting connecting block; 206. gasket; 207. cylinder body; 208. piston rod; 3. hydraulic pressure plate assembly; 301. cylinder seat; 3011. connecting hole; 302. hydraulic angle cylinder; 303. pressure plate; 4. guide anti-collision assembly; 401. guide anti-collision rod; 4011. wrench clamping groove; 402. guide seat; 4021. third adjustment slot; 5. positioning support column; 501. threaded hole; 6. auxiliary positioning support column; 7. anti-mistake column; 8. flywheel; 9. positioning column. DETAILED DESCRIPTION

[0036] The utility model discloses some embodiments, which will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] like Figure 1 to Figure 2 The flywheel drilling tool shown in the figure comprises a tool base plate 1, on which a center hole tightening and positioning device 2, a positioning column 9, a plurality of hydraulic pressure plate assemblies 3, a plurality of guide anti-collision assemblies 4 and a plurality of positioning support columns 5 are arranged.

[0038] The tensioning positioning device 2 is fixedly connected to the tooling bottom plate 1, and the positioning column 9 is fixedly connected. The positioning column 9 cooperates with the positioning hole on the flywheel for positioning.

[0039] Multiple groups of hydraulic pressure plate assemblies 3 are distributed along the circumference around the center of the center hole tensioning and positioning device 2. In this embodiment, three groups of hydraulic pressure plate assemblies 3 are distributed along the circumference around the center of the center hole tensioning and positioning device 2.

[0040] A plurality of positioning support columns 5 are distributed along the circumference around the center of the center hole tensioning positioning device 2, and the positioning support columns 5 correspond one-to-one to the hydraulic pressure plate assemblies 3. In this embodiment, three positioning support columns 5 are used, and the three positioning support columns 5 correspond one-to-one to the three hydraulic pressure plate assemblies 3.

[0041] The hydraulic pressure plate assembly 3 is fixed on the tooling base plate 1 and its radial position is adjustable (along the circle in which it is distributed). If the diameter of the flywheel to be subsequently processed is larger than the diameter of the flywheel currently processed, the hydraulic pressure plate assembly 3 can be moved outward, that is, the above three hydraulic pressure plate assemblies 3 need to be distributed on a circle with a larger diameter (larger than the diameter of the circle in which the hydraulic pressure plate assemblies 3 are currently distributed).

[0042] The guide anti-collision component 4 is fixed on the tooling base plate 1 and its position is adjustable. The positioning support column 5 is fixed on the tooling base plate 1 and its position is adjustable along the radial direction.

[0043] like Figure 4 As shown, the guide anti-collision assembly 4 includes a guide anti-collision rod 401 and a guide seat 402. The guide anti-collision rod 401 is fixedly connected to the guide seat 402. In some embodiments, the guide anti-collision rod 401 is preferably threadedly fixedly connected to the guide seat 402. Specifically, a threaded connecting rod portion is provided at the bottom end of the guide anti-collision rod 401, and a threaded hole connected to the threaded connecting rod portion is provided on the guide seat 402.

[0044] like Figure 1 As shown, the hydraulic pressure plate assembly 3 includes a cylinder seat 301, a hydraulic angle cylinder 302 and a pressure plate 303. The hydraulic angle cylinder 302 is fixedly connected to the cylinder seat 301, and the pressure plate 303 is movably connected to the hydraulic angle cylinder 302. The hydraulic angle cylinder 302 can drive the pressure plate 303 to move up and down, and the pressure plate 303 can rotate relative to the hydraulic angle cylinder 302.

[0045] like Figure 1 and Figure 2 As shown, the tooling base plate 1 is provided with multiple groups of first adjustment slot holes, each group of first adjustment slot holes is provided with two parallel first adjustment slot holes 101, and the oil cylinder seat 301 is provided with connecting holes 3011 corresponding to the first adjustment slot holes 101, and the connecting holes 3011 are preferably configured as long holes, and the first adjustment slot holes 101 and the connecting holes 3011 are connected by bolts and nuts. By disassembling the bolts and nuts and moving the oil cylinder seat 301, flywheels of different diameters can be press-fitted.

[0046] The tooling bottom plate 1 is provided with a plurality of second adjustment slot hole groups, each of which is provided with two parallel second adjustment slot holes 102, and the two second adjustment slot holes 102 of each group are located between the two first adjustment slot holes 101 of each group.

[0047] like Figure 5 As shown, a threaded hole 501 corresponding to the second adjustment slot 102 is formed at the bottom of the positioning support column 5, and the second adjustment slot 102 and the threaded hole 501 are connected by bolts. By disassembling and assembling the bolts and moving the positioning support column 5, flywheels of different diameters can be supported. The positioning support column 5 can be used to support and press-fit flywheels of different diameters in conjunction with the hydraulic pressure plate assembly 3.

[0048] like Figure 2 As shown, at least two auxiliary positioning support columns 6 are fixed on the tooling base plate 1, and the auxiliary positioning support columns 6 are arranged on the same circumference as the positioning support columns 5, and the auxiliary positioning support columns 6 have the same structure as the positioning support columns 5. The position of the auxiliary positioning support columns 6 can be adjusted, and can be adjusted to be close to or away from the position of the center hole tensioning and positioning device 2 to provide auxiliary support for the flywheel, and the adjustment structure refers to the connection relationship between the positioning support columns 5 and the tooling base plate.

[0049] like Figure 1 and Figure 2 As shown, a third adjustment slot 4021 is provided on the guide seat 402 of the guide anti-collision assembly 4, a threaded hole is provided on the tooling base plate 1, and at least two threaded holes are provided on the tooling base plate 1 corresponding to each third adjustment slot 4021, and the third adjustment slot 4021 is connected to the threaded hole by bolts.

[0050] like Figure 1 As shown, a wrench clamping groove 4011 is provided on the guide anti-collision rod 401 for easy installation.

[0051] The guide anti-collision rod 401 is usually made of rubber or other soft materials to prevent the workpiece from bumping. In this embodiment, three guide anti-collision components 4 are preferably provided, and the three guide anti-collision components 4 are distributed along the circumference around the center of the center hole tensioning and positioning device 2, which can play the role of pre-positioning flywheel.

[0052] like Figure 3 As shown, the center hole tightening and positioning device 2 includes an expansion sleeve conical core seat 201, a spring injection expansion sleeve 202, a power device, a pull rod assembly and a reset assembly. The expansion sleeve conical core seat 201 includes a conical portion 2011, and the spring injection expansion sleeve 202 is sleeved on the conical portion 2011. The inner wall of the spring injection expansion sleeve 202 has the same slope as the outer wall of the conical portion 2011.

[0053] The pull rod assembly includes a pull rod 203 and a cover 204. The pull rod 203 and the cover 204 are fixedly connected. The pull rod 203 is connected to the power device.

[0054] The reset assembly includes a limit connection block 205 and a limit long hole 2012 opened on the expansion sleeve cone seat 201. The limit connection block 205 is located in the limit long hole 2012 and is fixedly connected to the pull rod 203. The limit connection block 205 is located below the spring injection expansion sleeve 202.

[0055] When the power device drives the pull rod 203 to move downward, the stop cover 204 pushes the spring glue injection expansion sleeve 202 to move downward along the outer wall of the conical portion 2011, so that the spring glue injection expansion sleeve 202 moves radially outward to tighten and position the flywheel.

[0056] When the power device drives the pull rod 203 to move upward, the limit connection block 205 moves upward in the limit slot 2012 and pushes the spring injection expansion sleeve 202 to reset. The power device is set as a hydraulic cylinder, which includes a cylinder body 207 and a piston rod 208. The pull rod 203 is fixedly connected with the piston rod 208 by thread.

[0057] In some embodiments, the limiting connection block 205 is configured as a pin.

[0058] The spring glue injection expansion sleeve 202 changes the size of the outer diameter through the taper of the conical portion 2011 during the downward or upward movement along the axial direction of the expansion sleeve cone seat 201, and the workpiece is loosened, clamped and positioned by changing the size of the outer diameter. In addition, the distance of the spring glue injection expansion sleeve 202 moving radially outward can be controlled by controlling the downward movement distance of the spring glue injection expansion sleeve 202, so that flywheels of different specifications can be clamped and positioned.

[0059] In some embodiments, the center hole tensioning and positioning device 2 includes a gasket 206, which is sleeved on the expansion sleeve cone seat 201, and the gasket 206 is located below the spring injection expansion sleeve 202 and above the limit connection block 205. When the hydraulic cylinder drives the pull rod 203 to move upward, the pin moves upward in the limit long hole 2012, and pushes the gasket 206 and the spring injection expansion sleeve 202 to move upward, thereby resetting the spring injection expansion sleeve 202. During the resetting process, the gasket 206 can prevent the spring injection expansion sleeve 202 from directly contacting the limit connection block 205, and prevent the lower end of the spring injection expansion sleeve 202 from being worn after long-term use.

[0060] The flywheel drilling tooling also includes an anti-mistake column 7, which is fixed on the expansion sleeve cone seat 201. Since the flywheel is round, it is very easy to put the wrong circumferential angle when placed on the tooling, and the anti-mistake column 7 can prevent the flywheel from being placed at the wrong angle.

[0061] like Figure 1 and Figure 6 As shown, when the flywheel drilling tooling is used to position and clamp the flywheel, the pressure plate is first rotated to a certain angle to avoid interference when placing the flywheel, and then the flywheel is placed on the tooling, and the guide anti-collision rod 401 is used to pre-position the flywheel. At the same time, the conical portion 2011 of the center hole tensioning and positioning device 2 and the spring injection expansion sleeve 202 are inserted into the center hole of the flywheel, and the positioning column 9 cooperates with the positioning hole on the flywheel 8. When the center hole tensioning and positioning device 2 is tightened, the positioning and clamping of the flywheel center is completed. A plurality of positioning support columns 5 and auxiliary positioning support columns 6 support the flywheel 8, and then the pressure plate 303 is rotated to the right, and the hydraulic drive presses the pressure plate 303 downward to cooperate with the positioning support column 5 to clamp the flywheel 8, and the entire flywheel drilling tooling positioning and clamping process is completed.

[0062] The flywheel drilling tooling of the utility model has an adjustable radial position of the hydraulic pressure plate assembly 3 on the tooling base plate 1, an adjustable position of the guide anti-collision assembly 4 on the tooling base plate 1, and an adjustable radial position of the positioning support column 5 on the tooling base plate 1. Therefore, flywheel products of different types and sizes can be positioned and clamped by changing the positions of the hydraulic pressure plate assembly 3, the guide anti-collision assembly 4 and the positioning support column 5. The utility model has high compatibility and can reduce production costs.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flywheel drilling tool, comprising a tool base plate, characterized in that: The tooling bottom plate is provided with a center hole tensioning and positioning device, a positioning column, multiple groups of hydraulic pressure plate assemblies, multiple guide anti-collision assemblies and multiple positioning support columns. The tensioning and positioning device is fixedly connected to the tooling bottom plate, and the positioning column is fixedly connected. Multiple groups of hydraulic pressure plate assemblies are distributed along the circumference around the center of the center hole tensioning and positioning device. A plurality of positioning support columns are distributed along the circumference around the center of the center hole tensioning and positioning device, and the positioning support columns correspond to the hydraulic pressure plate assemblies one by one. The hydraulic pressure plate assembly is fixed on the tooling base plate and can be adjusted in radial position, the guide anti-collision assembly is fixed on the tooling base plate and can be adjusted in radial position, and the positioning support column is fixed on the tooling base plate and can be adjusted in radial position.

2. The flywheel drilling tool as claimed in claim 1, characterized in that: The guide anti-collision assembly comprises a guide anti-collision rod and a guide seat, wherein the guide anti-collision rod is fixedly connected to the guide seat. The hydraulic pressure plate assembly includes a cylinder seat, a hydraulic angular cylinder and a pressure plate. The hydraulic angular cylinder is fixedly connected to the cylinder seat, and the pressure plate is movably connected to the hydraulic angular cylinder. The hydraulic angular cylinder can drive the pressure plate to move up and down, and the pressure plate can rotate relative to the hydraulic angular cylinder.

3. The flywheel drilling tool as claimed in claim 2, characterized in that: The tooling bottom plate is provided with a plurality of first adjustment slot hole groups, each of which is provided with two parallel first adjustment slot holes, and the cylinder seat is provided with connecting holes corresponding to the first adjustment slot holes, and the first adjustment slot holes and the connecting holes are connected by bolts and nuts.

4. The flywheel drilling tool as claimed in claim 3, characterized in that: The tooling bottom plate is provided with a plurality of second adjustment slot hole groups, each of which is provided with two parallel second adjustment slot holes, and the two second adjustment slot holes in each group are located between the two first adjustment slot holes in each group. A threaded hole corresponding to the second adjustment slot hole is formed at the bottom of the positioning support column, and the second adjustment slot hole and the threaded hole are connected by bolts.

5. The flywheel drilling tool as claimed in claim 2, characterized in that: At least two auxiliary positioning support columns are also fixed on the tooling bottom plate. The auxiliary positioning support columns are arranged on the same circumference as the positioning support columns, and the auxiliary positioning support columns have the same structure as the positioning support columns.

6. The flywheel drilling tool as claimed in claim 2, characterized in that: A third adjustment slot is provided on the guide seat of the guide anti-collision assembly, a threaded hole is provided on the tooling base plate, at least two threaded holes are provided on the tooling base plate corresponding to each third adjustment slot, and the third adjustment slot is connected to the threaded hole by bolts.

7. The flywheel drilling tool as claimed in claim 2, characterized in that: A threaded connecting rod portion is provided at the bottom end of the guide anti-collision rod, and a threaded hole connected to the threaded connecting rod portion is provided on the guide seat.

8. The flywheel drilling tool as claimed in claim 1, characterized in that: The center hole tightening and positioning device comprises an expansion sleeve conical core seat, a spring injection expansion sleeve, a power device, a pull rod assembly and a reset assembly. The expansion sleeve conical core seat comprises a conical portion, the spring injection expansion sleeve is sleeved on the conical portion, and the inner wall of the spring injection expansion sleeve has the same slope as the outer wall of the conical portion. The pull rod assembly includes a pull rod and a cover, wherein the pull rod and the cover are fixedly connected, and the pull rod is connected to the power device. The reset assembly includes a limit connecting block and a limit long hole opened on the expansion sleeve cone core seat, the limit connecting block is located in the limit long hole and is fixedly connected to the pull rod, and the limit connecting block is located below the spring injection expansion sleeve. When the power device drives the pull rod to move downward, the blocking cover pushes the spring glue injection expansion sleeve to move downward along the outer wall of the tapered portion, so that the spring glue injection expansion sleeve moves radially outward to tighten and position the flywheel. When the power device drives the pull rod to move upward, the limiting connection block moves upward in the limiting long hole and pushes the spring glue injection expansion sleeve to reset.

9. The flywheel drilling tool as claimed in claim 8, characterized in that: The center hole tensioning and positioning device comprises a gasket ring, which is sleeved on the expansion sleeve cone seat, and is located below the spring glue injection expansion sleeve and above the limiting connection block.

10. The flywheel drilling tool as claimed in claim 8, characterized in that: The flywheel drilling tool also includes an anti-error column, and the anti-error column and the positioning column are fixed on the expansion sleeve cone core seat.

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