Scheme for enabling lathe to realize bevel grinding of gear rotor

Abstract

The invention discloses a scheme for enabling a lathe to realize bevel grinding of a gear rotor. The scheme comprises the following steps: firstly, mounting a first ejector pin in a center hole of a lathe chuck, mounting a second ejector pin on a lathe tailstock, mounting a motor on a lathe saddle, and fixing a turning tool on a transmission shaft part; a traveling crane is used for hoisting the gear rotor to a lathe, a first ejector pin and a second ejector pin abut against the two ends of the transmission shaft part correspondingly, and a to-be-ground inclined face on the gear part faces a grinding wheel on a motor; the angle of the motor on the lathe is adjusted through the tool rest; the lathe is started, and the lathe chuck drives the gear rotor to rotate through the turning tool; starting the motor to drive the grinding wheel to rotate; and driving the motor to axially move along the transmission shaft through the lathe saddle, so that the grinding wheel moves towards the gear part of the gear rotor until the inclined surface of the gear part is machined. By means of the arrangement, on the premise that equipment does not need to be additionally arranged, the large gear with the diameter larger than two meters can be rapidly produced, the production cost is effectively reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of large gear rotor grinding, and in particular to a solution for enabling a lathe to realize gear rotor bevel grinding. Background Art

[0002] With the continuous advancement of science and technology, the requirements for parts processing are getting higher and higher. When processing large parts, enterprises need to grind important parts of the parts in order to obtain higher dimensional accuracy and position accuracy. Especially for grinding the bevel of large gears of press machines with a diameter of more than 2 meters, large grinders are required for grinding. In the absence of large grinders, enterprises need to outsource or add equipment, which leads to increased production costs, long production cycles, and problems such as the inability to guarantee product accuracy. Summary of the invention

[0003] In order to solve the problems in the prior art, the purpose of the present invention is to improve a solution that enables a lathe to realize bevel grinding of gear rotors. This solution can utilize the company's existing lathes to perform bevel grinding on large gear rotors, thereby enabling the company to quickly complete production without the need to add equipment, effectively reducing production costs, improving production efficiency, and ensuring processing accuracy.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a scheme for enabling a lathe to realize the bevel grinding of a gear rotor, comprising a gear rotor, a lathe, an ejector, a turning tool, a motor and a grinding wheel; wherein the gear rotor comprises a transmission shaft and a gear part, the gear part is fixed on the transmission shaft, and the bevel to be ground is arranged on the gear part; the grinding wheel is installed on the output shaft of the motor; First, install the first thimble in the center hole of the lathe chuck, install the second thimble on the tailstock of the lathe, install the motor on the lathe tool holder, and fix the turning tool on the transmission shaft; then, use the crane to hoist the gear rotor on the lathe, and the first thimble and the second thimble respectively press the two ends of the transmission shaft against each other, and the inclined surface to be ground on the gear part is set toward the grinding wheel on the motor; adjust the angle of the motor on the lathe through the tool holder; then, start the lathe, and the lathe chuck drives the gear rotor to rotate through the turning tool; start the motor to drive the grinding wheel to rotate; then, drive the motor to move axially along the transmission shaft through the lathe tool holder, so that the grinding wheel moves toward the gear part of the gear rotor until the inclined surface of the gear part is processed.

[0005] Preferably, the turning tooling includes a driving sleeve and a driving rod, the driving rod is threadedly connected to the driving sleeve, and one end of the driving rod can extend into the driving sleeve; before the gear rotor is installed on the lathe, the driving sleeve is sleeved on the transmission shaft of the gear rotor, and then the driving sleeve is fixed to the gear rotor through the driving rod.

[0006] Preferably, two ends of the transmission shaft are provided with central positioning holes, and the tips of the two ejector pins are respectively inserted into the central positioning holes at the two ends of the transmission shaft.

[0007] Preferably, the motor is mounted on the lathe tool holder via a bracket, and the grinding wheel is located outside the bracket.

[0008] Preferably, the bracket includes a base, which is provided with two symmetrically arranged supporting parts, and the supporting parts are provided with mounting holes and locking holes, and the mounting holes and the locking holes are connected; the body of the motor passes through the mounting holes on the two supporting parts, and the fastener 30 is threadedly connected to the locking hole, and one end of the fastener extends into the mounting hole and is tightly pressed against the body of the motor.

[0009] Preferably, the fastener is a lifting lug, and the crane can transport the bracket to a specified location via the lifting lug.

[0010] Preferably, a clamping plate is fixed outside the bracket, and the bracket is installed on the tool holder of the lathe through the clamping plate.

[0011] Preferably, a third threaded hole is provided on the support portion of the bracket, and the clamping plate is fixedly mounted at the third threaded hole of the bracket by two bolts.

[0012] Preferably, the grinding wheel is a bowl-shaped grinding wheel made of corundum sand.

[0013] Preferably, the motor is a high-speed motor; and the lathe is a bedroom lathe.

[0014] The beneficial effects of the technical solution of the present invention are: it can effectively solve the problem of processing difficulties of large gears with a diameter of more than two meters due to the limitation of machine tool models, enable enterprises to complete production quickly without adding equipment, and can effectively reduce production costs, improve production efficiency, and ensure processing accuracy; the above solution increases the grinding function of the lathe, and has the characteristics of wide adaptability, reusability, low cost, easy maintenance, high processing efficiency and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the connection structure of the motor, bracket and clamp Figure 1 ; Figure 2 Schematic diagram of the connection structure of the motor, bracket and clamp Figure 2 ; Figure 3 is a schematic diagram of the structure of the bracket; Figure 4 It is a structural schematic diagram of the connecting shaft; Figure 5 This is a schematic diagram of the gear rotor assembly.

[0016] Figure numerals: 1. motor; 11. connecting shaft; 111. limiting portion; 112. first threaded portion; 113. mounting portion; 114. second threaded portion; 12. gasket; 13. nut; 2. grinding wheel; 3. bracket; 31. base; 32. supporting portion; 33. mounting hole; 34. locking hole; 35. third threaded hole; 4. clamping plate; 5. gear rotor; 51. gear portion; 511. inclined surface; 52. transmission shaft portion; 6. disk tooling; 61. driving sleeve; 62. driving rod; 7. first ejector pin; 8. second ejector pin; 9. lathe chuck. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Example

[0022] like Figures 1 to 5 A scheme for enabling a lathe to grind the bevel of a gear rotor is shown, comprising a gear rotor 5, a lathe, an ejector, a turning tool, a motor 1 and a grinding wheel 2; wherein the gear rotor 5 comprises a transmission shaft 52 and a gear part 51, the gear part 51 is fixed on the transmission shaft 52, and the bevel 511 to be ground is arranged on the gear part 51; the grinding wheel 2 is mounted on the output shaft of the motor 1; When grinding the inclined surface 511 of the gear rotor 5: First, install the first ejector pin 7 in the center hole of the lathe chuck 9, install the second ejector pin 8 on the lathe tailstock, install the motor 1 on the lathe tool rest, and fix the turning tooling on the transmission shaft 52; Then, the gear rotor 5 is hoisted on the lathe by using a crane, the first thimble 7 and the second thimble 8 respectively press the two ends of the transmission shaft 52 against each other, and the inclined surface 511 to be ground on the gear part 51 is set toward the grinding wheel 2 on the motor 1; the angle of the motor 1 on the lathe is adjusted by the tool holder; Then, the lathe is started, and the lathe chuck 9 drives the gear rotor 5 to rotate by turning the tooling; the motor 1 is started to drive the grinding wheel 2 to rotate; Then, the lathe tool holder drives the motor 1 to move along the axial direction of the transmission shaft, so that the grinding wheel 2 moves toward the gear part 51 of the gear rotor 5 until the inclined surface 511 on the gear part 51 meets the requirements.

[0023] Such a setting can effectively solve the problem of processing difficulties of large gears with a diameter of more than two meters due to the limitation of machine tool models; the above solution increases the grinding function of the lathe, and has the characteristics of wide adaptability, reusability, low cost, easy maintenance, high processing efficiency and simple operation.

[0024] In this embodiment, the turning tool 6 includes a driving sleeve 61 and a driving rod 62. The driving rod 62 is threadedly connected to the driving sleeve 61, and one end of the driving rod 62 can extend into the driving sleeve 61. Before the gear rotor 5 is installed on the lathe, the driving sleeve 61 is sleeved on the transmission shaft 52 of the gear rotor 5, and then the driving sleeve 61 is fixed to the gear rotor 5 through the driving rod 62. Such an arrangement can effectively drive the gear rotor 5 to rotate and reduce the appearance loss of the gear rotor 5. In other embodiments, when installing the turning tool, the driving sleeve is first installed on the gear rotor. After the gear rotor 5 is installed on the lathe, the driving sleeve 61 is moved to allow the driving rod to extend between two adjacent claws on the chuck, and then the driving rod 62 is rotated to fix the driving sleeve and the gear rotor 5.

[0025] Further preferably, the drive sleeve 61 is provided with a first threaded hole communicating with its inner hole, and the drive rod 62 is threadedly connected to the first threaded hole. Specifically, the drive sleeve 61 and the gear rotor 5 are clearance-matched, and one end of the drive rod 62 can extend into the drive sleeve 61 and abut against the gear rotor 5.

[0026] In this embodiment, central positioning holes are provided at both ends of the transmission shaft 52, and the tips of the two ejector pins are respectively inserted into the central positioning holes at both ends of the transmission shaft 52. Such an arrangement can effectively ensure the parallel state of the gear rotor 5 and improve the processing accuracy.

[0027] In order to facilitate the installation of the motor 1 on the lathe tool holder, Figures 1 to 3 As shown, in this embodiment, the motor 1 is installed on the lathe tool holder through the bracket 3, and the grinding wheel 2 is located on the outside of the bracket 3; specifically, the bracket 3 includes a base 31, and two symmetrically arranged support parts 32 are provided on the base 31, and the support parts 32 are provided with mounting holes 33 and locking holes 34, and the mounting holes 33 and the locking holes 34 are connected; the body of the motor 1 passes through the two support parts 32, and the fastener 30 is threadedly connected with the locking hole 34, and one end of the fastener 30 extends into the mounting hole 33 and presses against the body of the motor 1, thereby fixing the motor 1 and the bracket 3.

[0028] Further preferably, the fastener 30 is a lifting lug, and the vehicle can transport the bracket 3 to a specified location via the lifting lug.

[0029] In this embodiment, a clamping plate 4 is fixed outside the bracket 3, and the bracket 3 is installed on the tool rest of the lathe through the clamping plate 4. Specifically, a third threaded hole 35 is provided on the support portion of the bracket 3, and the clamping plate 4 is fixedly installed at the third threaded hole 35 of the bracket 3 by two bolts. In this way, the bracket can be matched with lathes of different models by replacing the clamping plate.

[0030] In order to further improve the processing accuracy, such as Figure 1 , Figure 2 and Figure 4As shown, in this embodiment, the output shaft of the motor 1 is connected to the grinding wheel 2 through the connecting shaft 11, and the output shaft of the motor, the connecting shaft 11 and the grinding wheel 2 are coaxially arranged.

[0031] Further preferably, a limiting hole is opened at the end of the output shaft of the motor 1, and a second threaded hole coaxial with the limiting hole is arranged on the inner wall of the limiting hole; a limiting portion 111 is protruded at one end of the connecting shaft 11, and the limiting portion 111 matches the limiting hole, and a first threaded portion 112 coaxial with the limiting hole is protruded on the limiting portion 111; the first threaded portion 112 of the connecting shaft 11 is threadedly connected with the second threaded hole on the output shaft of the motor 1, and the limiting portion 111 is inserted into the limiting hole, and the end of the output shaft is butted against the end of the connecting shaft 11.

[0032] Further preferably, a mounting portion 113 is protruded from the other end of the connecting shaft 11, and the mounting portion 113 matches the inner hole of the grinding wheel 2, and a second threaded portion 114 is protruded from the mounting portion 113 and connected to the interior thereof; the grinding wheel 2 is sleeved on the mounting portion 113, and then the nut 13 is installed on the second threaded portion 114, and the nut 13 is tightened to tighten the grinding wheel 2 and the connecting shaft 11; a gasket 12 is arranged between the nut 13 and the grinding wheel 2, and the nut 13 is pressed against the grinding wheel 2 through the gasket.

[0033] In this embodiment, the grinding wheel 2 is a bowl-shaped grinding wheel made of corundum sand, and the specifications of the grinding wheel 2 are outer diameter 100mm, inner hole 30mm, bowl width 10mm, and bowl thickness 5mm. In this embodiment, the motor 1 is a high-speed motor; the lathe is a bedroom lathe, and the specific structure of the lathe can refer to the prior art with publication numbers CN218425648U, CN203621517U, CN211727494U, and CN1636656A.

[0034] In this embodiment, the motor 1 and the lathe are controlled by a frequency converter, and the frequency converter model is TOS-130G3-2-0.8.

[0035] In this embodiment, during the grinding process of the gear rotor 5, the bevel 511 is repeatedly tested by a dial indicator. The product requires that the relative journal runout of the bevel 511 to be ground is within 0.01 mm, the roughness is above Ra0.6, and the hardness of the bevel 511 to be ground is HRC58-63.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A solution for enabling a lathe to perform gear rotor bevel grinding, characterized in that: The invention comprises a gear rotor (5), a lathe, an ejector pin, a turning tool (6), a motor (1) and a grinding wheel (2); wherein the gear rotor (5) comprises a transmission shaft portion (52) and a gear portion (51), the gear portion (51) is fixed on the transmission shaft portion (52), and the inclined surface (511) to be ground is arranged on the gear portion (51); and the grinding wheel (2) is mounted on the output shaft of the motor (1); When grinding the bevel (511) of the gear rotor (5): First, install the first ejector pin (7) in the center hole of the lathe chuck (9), install the second ejector pin (8) on the lathe tailstock, install the motor (1) on the lathe tool holder, and fix the turning tool (6) on the transmission shaft (52); Then, the gear rotor (5) is hoisted onto a lathe using a crane, the first thimble (7) and the second thimble (8) respectively press the two ends of the transmission shaft (52) against each other, and the inclined surface (511) to be ground on the gear portion (51) is arranged toward the grinding wheel (2) on the motor (1); the angle of the motor (1) on the lathe is adjusted by the tool holder; Then, the lathe is started, and the lathe chuck (9) drives the gear rotor (5) to rotate by turning the tooling; the motor (1) is started to drive the grinding wheel (2) to rotate; Then, the lathe tool holder drives the motor (1) to move along the axial direction of the transmission shaft, so that the grinding wheel (2) moves toward the gear portion (51) of the gear rotor (5) until the inclined surface (511) on the gear portion (51) is processed.

2. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 1, characterized in that: The disk-moving tool (6) comprises a driving sleeve (61) and a driving rod (62), wherein the driving rod (62) is threadedly connected to the driving sleeve (61), and one end of the driving rod (62) can extend into the driving sleeve (61); Before the gear rotor (5) is mounted on a lathe, a drive sleeve (61) is sleeved onto a transmission shaft (52) of the gear rotor (5), and then the drive sleeve (61) is fixed to the gear rotor (5) via a drive rod (62).

3. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 1, characterized in that: Central positioning holes are provided at both ends of the transmission shaft (52), and the tips of the two ejector pins are respectively inserted into the central positioning holes at both ends of the transmission shaft (52).

4. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 1, characterized in that: The motor (1) is mounted on the lathe tool holder via a bracket (3), and the grinding wheel (2) is located outside the bracket (3).

5. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 4, characterized in that: The bracket (3) comprises a base (31), the base (31) is provided with two symmetrically arranged support parts (32), the support parts (32) are provided with mounting holes (33) and locking holes (34), and the mounting holes (33) and the locking holes (34) are connected; The body of the motor (1) passes through the mounting holes (33) on the two support parts (32), the fastener 30 is threadedly connected to the locking hole (34), and one end of the fastener (30) extends into the mounting hole (33) and is tightly pressed against the body of the motor (1).

6. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 5, characterized in that: The fastener (30) is a lifting lug, and the crane can transport the bracket (3) to a specified location via the lifting lug.

7. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 1, characterized in that: A clamping plate (4) is fixed outside the bracket (3), and the bracket (3) is installed on the tool holder of the lathe through the clamping plate (4).

8. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 7, characterized in that: A third threaded hole (35) is provided on the support portion of the bracket (3), and the clamping plate (4) is fixedly mounted on the third threaded hole (35) of the bracket (3) by means of two bolts.

9. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 1, characterized in that: The grinding wheel (2) is a bowl-shaped grinding wheel made of corundum sand.

10. A method for enabling a lathe to perform gear rotor bevel grinding according to claim 1, characterized in that: The motor (1) is a high-speed motor; the lathe is a bedroom lathe.

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