A planetary gear processing machine for cement mixer trucks

Abstract

The present patent application belongs to the technical field of gear processing, and specifically relates to a planetary gear processing machine for a cement mixer truck, comprising a clamping device, a processing device and a shielding assembly; the shielding assembly comprises a sealing box and a filter tube, the sealing box is arranged on one side of a support platform, an opening is provided on the side of the sealing box close to the support platform, the outer edge of the tooth blank extends into the opening, strip through grooves are provided on both sides of the sealing box, the drive shaft passes through two strip through grooves, and both ends of the drive shaft are equipped with a blocking structure for blocking the strip through grooves, the tool is located in the sealing box, an openable movable bottom plate is provided at the bottom of the sealing box, and the filter tube is connected to a drainage hole; its purpose is: by setting up the sealing box, the tooth blank extends into the sealing box through the opening, the processed part of the tooth blank and the tool are shielded, and during cutting, the coolant and metal chips are blocked to avoid splashing of the coolant and metal chips, which are difficult to clean.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing, and in particular to a planetary gear processing machine tool for a cement mixer truck. Background Art

[0002] The planetary reducer is one of the key components of a concrete mixer truck, which plays the role of stirring and supporting the mixing drum. The planetary reducer contains a planetary bracket, a sun gear and a planetary gear. The processing procedures of the planetary gear are generally forging to form a tooth blank, rough machining to form a tooth groove, and fine machining to process the surface.

[0003] The rough machining of planetary gears generally adopts gear hobbing. The gear blank is placed horizontally on a rotatable fixture. The fixture positions the inner ring of the gear blank and presses the upper end face of the gear blank. The tool is on one side of the gear blank. The tool moves up and down and rotates itself to make partial contact with the gear blank for cutting. As the fixture rotates, the tooth groove is processed section by section.

[0004] However, when performing gear hobbing, the metal chips and cutting coolant produced by cutting will splash during processing, which is not easy to collect and clean. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a planetary gear processing machine for a cement mixer truck. By setting a sealing box, the gear blank extends into the sealing box through an opening, and the processed part of the gear blank and the tool are shielded. During cutting, the coolant and metal chips are blocked to avoid splashing of the coolant and metal chips, which are difficult to clean.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A cement mixer planetary gear processing machine tool, comprising a clamping device and a processing device, the clamping device comprising a rotatable support platform, a first rotating mechanism, a first lifting mechanism and a clamping piece, the first lifting mechanism can drive the clamping piece to move along the Z-axis direction, the clamping piece presses the gear blank above the support platform, the first rotating mechanism can drive the clamping piece, the gear blank and the support platform to rotate; the processing device comprises a second lifting mechanism, a driving shaft and a tool, the second lifting mechanism can drive the driving shaft and the tool to move along the Z-axis direction, the driving shaft is arranged horizontally, can drive the tool to rotate, and the tool is arranged in the middle of the driving shaft;

[0008] It also includes a shielding component, which includes a sealing box and a filter tube, the sealing box is arranged on one side of the support platform, and an opening is provided on the side of the sealing box close to the support platform, when the tooth blank is placed on the support platform, the outer edge of the tooth blank extends into the opening, strip through grooves are provided on both sides of the sealing box, the drive shaft passes through two strip through grooves, and both ends of the drive shaft are equipped with sealing structures for sealing the strip through grooves, the tool is located in the sealing box, and an openable movable bottom plate is provided at the bottom of the sealing box, a drainage hole is provided on the movable bottom plate, the filter tube is connected to the drainage hole, and a coolant pipe is connected to the top of the sealing box.

[0009] Working principle: place the gear blank on the support table and extend it into the opening of the sealing box, preliminarily position the gear blank through the opening, drive the pressing part to press the gear blank by the first lifting mechanism, the initial position of the tool is below the gear blank, the driving shaft drives the tool to rotate, and the second lifting mechanism drives the rotating tool to move upward to cut the workpiece. The metal chips generated by the cutting are blocked by the sealing box and fall on the movable bottom plate. The coolant sprayed from the coolant pipe is blocked by the sealing box, flows to the bottom of the movable bottom plate, and is discharged through the filter tube. After the movable bottom plate is opened, the metal chips in the sealing box can be cleaned; by setting a blocking structure, when the second lifting mechanism drives the driving shaft to move up and down, the blocking structure always blocks the strip through groove.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. By setting up a sealing box, the gear blank extends into the sealing box through the opening, shielding the processed part of the gear blank and the tool. During cutting, the coolant and metal chips are blocked to avoid splashing of coolant and metal chips, which are difficult to clean;

[0012] 2. By setting up a movable bottom plate and a filter tube, the filter tube can separate the coolant and metal chips. Some metal chips will adhere to the inner wall of the sealed box. The splashing coolant can wash the metal chips to the movable bottom plate. The metal chips are accumulated on the movable bottom plate. After opening the movable bottom plate, it is easy to clean the metal chips.

[0013] 3. The opening on the sealing box has a positioning function when placing the gear blank, and when the first rotating mechanism drives the workpiece to rotate, the gear blank rests on both sides of the opening to avoid eccentricity of the gear blank.

[0014] As a preferred embodiment of the present invention, the two sealing structures both include a sliding plate, a guide rail is vertically arranged on the inner side of the sealing box, the strip-shaped through groove is located in the guide rail, the sliding plate is slidably installed in the guide rail, a through hole is opened in the middle of the sliding plate, and the drive shaft passes through the through hole and is rotatably connected to the sliding plate.

[0015] Beneficial effects:

[0016] 1. The sliding plate is slidably connected to the guide rail and rotatably connected to the drive shaft, so that the sliding plate can move up and down with the drive shaft and always block the strip groove to prevent coolant and metal chips from leaking from the strip groove;

[0017] 2. When the driving shaft drives the tool and the sliding plate to move upward, the upper end of the sliding plate and the sealing box are limited to prevent the second lifting mechanism from mistakenly driving the tool to rise. When the height is too high, the tool may damage the sealing box.

[0018] As a preferred embodiment of the present invention, the movable bottom plate includes a plate body and a compression spring vertically mounted on the base, the plate body is fixedly mounted on the top of the compression spring, and the compression spring presses the plate body against the bottom of the sealing box.

[0019] Beneficial effect: In the initial state, the elastic force of the compression spring is used to press the plate body against the bottom of the sealing box to ensure the sealing of the sealing box. When the second lifting mechanism drives the drive shaft to move to the lowest point of the strip through groove, the sliding plate moves downward with the drive shaft, and the lower end of the sliding plate pushes the plate body open, so that there is a gap between the plate body and the sealing box, which can clean the metal chips accumulated above the plate body.

[0020] As a preferred embodiment of the present invention, arc blocks are fixedly connected to both sides of the opening of the sealing box, and the two arc blocks are in contact with the side walls of the gear blank.

[0021] Beneficial effects:

[0022] 1. As the gear blank is processed, multiple tooth grooves are formed. When the clamping device drives the gear blank to rotate, when the tooth groove is located on the opening side of the sealing box, metal cutting and coolant may be discharged from the sealing box through the tooth groove. Therefore, by setting an arc block, the tooth groove at the opening position is blocked to ensure the sealing of the sealing box;

[0023] 2. The arc block cooperates with the opening of the sealing box, and the gear blank is always in contact with the inner wall of the arc block, which has a better positioning effect on the gear blank.

[0024] As a preferred embodiment of the present invention, a mounting groove is formed on the inner side of one of the arc-shaped blocks, a brush is fixedly connected in the mounting groove, and the brush contacts the side wall of the tooth blank.

[0025] Beneficial effect: The brush is flexible and always in contact with the side wall of the tooth blank. As the tooth blank rotates, the metal chips adhering to the tooth groove are cleaned.

[0026] As a preferred embodiment of the present invention, the arc blocks are elastic blocks, and the arc blocks on both sides clamp the gear blank inwards.

[0027] Beneficial effect: By setting the elastic arc block, the arc block has a certain clamping force on the gear blank, and the gear blank is initially positioned when the clamping device is not clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 2 is a schematic structural diagram of an embodiment of a planetary gear processing machine tool for a cement mixer truck according to the present invention;

[0029] Figure 2 2 is a schematic structural diagram of a processing device and a shielding assembly in an embodiment of a planetary gear processing machine for a cement mixer truck according to the present invention;

[0030] Figure 3 It is a schematic diagram of the processing inside the sealing box of the planetary gear processing machine tool embodiment of the cement mixer truck of the present invention.

[0031] The accompanying drawings include: a clamping device 1, a support table 11, a pressing member 12, a processing device 2, a second lifting mechanism 21, a drive shaft 22, a tool 23, a transmission box 24, a shielding assembly 3, a sealing box 31, a filter tube 32, an opening 33, a strip-shaped through groove 34, a blocking structure 35, a sliding plate 351, a guide rail 352, a movable bottom plate 36, a plate body 361, a compression spring 362, an arc block 37, a brush 38, a coolant pipe 39, a transfer device 4, a second rotating mechanism 41, a clamping claw 42, a tooth blank 5, and a base 6. DETAILED DESCRIPTION

[0032] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0033] In the description of the present application, the terms "first", "second", etc. are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] See also Figure 1 As shown, this embodiment discloses a cement mixer planetary gear processing machine tool, including a clamping device 1, a processing device 2, a shielding component 3 and a transfer device 4.

[0035] Among them, see Figure 3 As shown, the clamping device 1 includes a rotatable support platform 11, a first rotating mechanism, a first lifting mechanism and a clamping member 12. The first lifting mechanism can drive the clamping member 12 to move along the Z-axis direction. The clamping member 12 presses the tooth blank 5 above the support platform 11. The first rotating mechanism can drive the clamping member 12, the tooth blank 5 and the support platform 11 to rotate.

[0036] In this embodiment, the first rotating mechanism adopts a motor, and the first lifting mechanism adopts an electric cylinder; when the gear blank 5 is placed in the opening 33, the central axis direction of the gear blank 5 is the same as the Z-axis direction.

[0037] Among them, see Figure 1 and Figure 3 As shown, the processing device 2 includes a second lifting mechanism 21, a driving shaft 22 and a tool 23. The second lifting mechanism 21 can drive the driving shaft 22 and the tool 23 to move along the Z-axis direction. The driving shaft 22 is arranged horizontally and can drive the tool 23 to rotate. The tool 23 is arranged in the middle of the driving shaft 22. The tool 23 moves from bottom to top and rotates continuously to cut chips on a part of the gear blank 5. After the processing of this section of the tooth groove is completed, the first rotating mechanism drives the gear blank 5 to rotate to process the next section of the tooth groove.

[0038] In this embodiment, the second lifting mechanism 21 adopts an electric cylinder, and the driving shaft 22 is driven by a motor. The motor is arranged in a transmission box 24. A plurality of sets of bevel gears and transmission rods are also installed in the transmission box 24. The power of the motor is transmitted to the driving shaft 22 through the bevel gears and transmission rods.

[0039] Among them, see Figure 2 and Figure 3 As shown, the shielding assembly 3 includes a sealing box 31 and a filter tube 32, the sealing box 31 is arranged on one side of the support platform 11, and an opening 33 is provided on the side of the sealing box 31 close to the support platform 11. When the tooth blank 5 is placed on the support platform 11, the outer edge of the tooth blank 5 extends into the opening 33, and strip through grooves 34 are provided on both sides of the sealing box 31. The drive shaft 22 passes through two strip through grooves 34, and both ends of the drive shaft 22 are equipped with sealing structures 35 for sealing the strip through grooves 34. The tool 23 is located in the sealing box 31, and an openable movable bottom plate 36 is provided at the bottom of the sealing box 31, and a drainage hole is provided on the movable bottom plate 36. The filter tube 32 is connected to the drainage hole, and the top of the sealing box 31 is connected to a coolant pipe 39.

[0040] In this embodiment, one end of the tooth blank 5 in the processing state is located in the opening 33. During processing, the metal chips generated by cutting are blocked by the sealing box 31 and fall on the movable bottom plate 36. The coolant sprayed from the coolant pipe 39 is blocked by the sealing box 31, flows to the bottom of the movable bottom plate 36, and is discharged through the filter tube 32. After the movable bottom plate 36 is opened, the metal chips in the sealing box 31 can be cleaned.

[0041] Among them, see Figure 3As shown, the two blocking structures 35 each include a sliding plate 351, a guide rail 352 is vertically arranged on the inner side of the sealing box 31, the strip-shaped through groove 34 is located in the guide rail 352, the sliding plate 351 is slidably installed in the guide rail 352, a through hole is opened in the middle of the sliding plate 351, the driving shaft 22 passes through the through hole and is rotatably connected to the sliding plate 351.

[0042] In this embodiment, the sliding plate 351 is slidably connected to the guide rail 352 and is rotationally connected to the drive shaft 22, so that the sliding plate 351 can move up and down with the drive shaft 22 and always block the strip groove 34 to prevent coolant and metal chips from leaking out of the strip groove 34.

[0043] Among them, see Figure 3 As shown, the movable bottom plate 36 includes a plate body 361 and a compression spring 362 vertically mounted on the base 6 , the plate body 361 is fixedly mounted on the top of the compression spring 362 , and the compression spring 362 presses the plate body 361 against the bottom of the sealing box 31 .

[0044] In this embodiment, in the initial state, the elastic force of the compression spring 362 is used to press the plate body 361 against the bottom of the sealing box 31, thereby ensuring the sealing of the sealing box 31. When the second lifting mechanism 21 drives the drive shaft 22 to move to the lowest point, it drives the sliding plate 351 to move downward, and the sliding plate 351 pushes the plate body 361 open, so that there is a gap between the plate body 361 and the sealing box 31, so that the metal chips accumulated above the plate body 361 can be cleaned.

[0045] In other embodiments, the plate body 361 may be a plate body 361 with an inclined angle, and the plate body 361 is inclined toward one side. After the movable bottom plate 36 is opened, the metal chips are automatically discharged along the inclined surface. A collection box is placed below the lowest point of the plate body 361 to collect the metal chips.

[0046] Among them, see Figure 2 As shown, the sealing box 31 is fixedly connected with arc blocks 37 on both sides of the opening 33, and the two arc blocks 37 are in contact with the side walls of the tooth blank 5; a mounting groove is opened on the inner side of one of the arc blocks 37, and a brush 38 is fixedly connected in the mounting groove, and the brush 38 is in contact with the side wall of the tooth blank 5.

[0047] In this embodiment, as the tooth blank 5 is processed, a plurality of tooth grooves are formed. When the clamping device 1 drives the tooth blank 5 to rotate, when the tooth groove is located on the side of the opening 33 of the sealing box 31, metal cutting and coolant may be discharged from the sealing box 31 through the tooth groove. Therefore, by setting an arc block 37, the tooth groove at the opening 33 is blocked to ensure the sealing of the sealing box 31. The brush 38 is bendable and always in contact with the side wall of the tooth blank 5. As the tooth blank 5 rotates, the brush 38 can clean the metal chips adhered to the tooth groove.

[0048] Among them, see Figure 1 As shown, the rotating device includes a second rotating mechanism 41 and a clamping claw 42, the clamping claw 42 is used to clamp or loosen the two sides of the tooth blank 5, the second rotating mechanism 41 is arranged on one side of the support platform 11, the second rotating mechanism 41 drives the clamping claw 42 to rotate, so that the tooth blank 5 is placed in or out of the support platform 11, and the arc block 37 is an elastic block. When putting in and taking out, the arc block 37 will be squeezed, and the arc block 37 will deform to avoid, so as to avoid the movement interference between the tooth blank 5 and the sealing box 31.

[0049] In this embodiment, the second rotating mechanism 41 is a motor, and the clamping claw 42 is a cylinder clamping claw.

[0050] The usage and principle of this embodiment are as follows:

[0051] The clamping claw 42 clamps the tooth blank 5, and puts the tooth blank 5 into the opening 33 of the sealing box 31, so that the outer edge of the tooth blank 5 is located in the opening 33, and the first lifting mechanism drives the pressing member 12 to press against the tooth blank 5, and the loading is completed;

[0052] When the tool 23 is in the initial state, it is located below the tooth blank 5. The drive shaft 22 drives the tool 23 to rotate. The second lifting mechanism 21 drives the drive shaft 22 and the tool 23 to rise, and the tooth blank 5 in the sealing box 31 is cut. The coolant is sprayed out of the coolant pipe 39 to cool the processing part. The metal chips generated by cutting are blocked by the sealing box 31 and fall on the movable bottom plate 36. The coolant sprayed out of the coolant pipe 39 is blocked by the sealing box 31, flows to the bottom of the movable bottom plate 36, and is discharged through the filter tube 32. The opening 33 on the sealing box 31 has a positioning function when the tooth blank 5 is placed. When the first rotating mechanism drives the workpiece to rotate, the tooth blank 5 rests on both sides of the opening 33 to avoid eccentricity of the tooth blank 5. During cutting, part of the metal chips will adhere to the inner wall of the sealing box 31, and the metal chips can be washed to the movable bottom plate 36 by the splashing coolant.

[0053] After the processing of the tooth groove section is completed, a plurality of tooth grooves are formed as the tooth blank 5 is processed. When the clamping device 1 drives the tooth blank 5 to rotate, when the tooth groove is located on the side of the opening 33 of the sealing box 31, metal cutting and coolant may be discharged from the sealing box 31 through the tooth groove. Therefore, by setting the arc block 37, the tooth groove at the position of the opening 33 is blocked to ensure the sealing of the sealing box 31, and the inner wall of the arc block 37 is always in contact with the side wall of the tooth blank 5. When the tooth blank 5 rotates, it cooperates with the opening 33, so that the tooth blank 5 is not easy to be eccentric. The brush 38 is always in contact with the side wall of the tooth blank 5 due to its bendability. As the tooth blank 5 rotates, the brush 38 can clean the metal chips adhered to the tooth groove;

[0054] After completing the processing of the entire tooth blank 5, the second lifting mechanism 21 drives the driving shaft 22 to descend to the lowest point of the strip through groove 34, driving the sliding plate 351 to move downward, and the sliding plate 351 pushes open the plate body 361, so that there is a gap between the plate body 361 and the sealing box 31, and the metal chips accumulated above the plate body 361 can be cleaned; the sliding plate 351 plays a role in sealing the sealing box 31, limiting the protection of the tool 23, and has the function of automatically opening the plate body 361.

[0055] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A cement mixer planetary gear processing machine, comprising a clamping device and a processing device, wherein the clamping device comprises a rotatable support platform, a first rotating mechanism, a first lifting mechanism and a clamping piece, wherein the first lifting mechanism can drive the clamping piece to move along the Z-axis direction, wherein the clamping piece presses the gear blank above the support platform, and the first rotating mechanism can drive the clamping piece, the gear blank and the support platform to rotate; the processing device comprises a second lifting mechanism, a driving shaft and a tool, wherein the second lifting mechanism can drive the driving shaft and the tool to move along the Z-axis direction, wherein the driving shaft is arranged horizontally and can drive the tool to rotate, and wherein the tool is arranged in the middle of the driving shaft, wherein: It also includes a shielding component, which includes a sealing box and a filter tube, the sealing box is arranged on one side of the support platform, and an opening is provided on the side of the sealing box close to the support platform. When the tooth blank is placed on the support platform, the outer edge of the tooth blank extends into the opening, and strip through grooves are provided on both sides of the sealing box, and the drive shaft passes through two strip through grooves, and both ends of the drive shaft are equipped with a blocking structure for blocking the strip through grooves, the tool is located in the sealing box, and an openable movable bottom plate is provided at the bottom of the sealing box, and a drainage hole is provided on the movable bottom plate, the filter tube is connected to the drainage hole, and the top of the sealing box is connected to a coolant pipe; The two blocking structures both include a sliding plate, a guide rail is vertically arranged on the inner side of the sealing box, the strip-shaped through groove is located in the guide rail, the sliding plate is slidably installed in the guide rail, a through hole is opened in the middle of the sliding plate, the drive shaft passes through the through hole and is rotatably connected to the sliding plate, and the sliding plate always blocks the strip-shaped through groove during the process of sliding following the drive shaft.

2. The planetary gear processing machine tool for cement mixer truck according to claim 1, characterized in that: The movable bottom plate comprises a plate body and a compression spring vertically mounted on a base, the plate body is fixedly mounted on the top end of the compression spring, and the compression spring presses the plate body against the bottom of the sealing box.

3. The planetary gear processing machine tool for cement mixer truck according to claim 1, characterized in that: The sealing box is fixedly connected with arc blocks on both sides of the opening, and the two arc blocks are in contact with the side walls of the gear blank.

4. The planetary gear processing machine tool for cement mixer truck according to claim 3, characterized in that: A mounting groove is provided on the inner side of one of the arc-shaped blocks, a brush is fixedly connected in the mounting groove, and the brush contacts the side wall of the tooth blank.

5. The planetary gear processing machine tool for cement mixer truck according to claim 4, characterized in that: The arc blocks are elastic blocks, and the arc blocks on both sides clamp the gear blank inwards.

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