Automatic processing equipment for the cylinder barrel of a hydraulic cylinder

Abstract

The present invention relates to the technical field of hydraulic cylinder processing. The present invention provides an automatic processing equipment for the cylinder barrel of a hydraulic oil cylinder, which includes a CNC lathe body, a tailstock is arranged inside the CNC lathe body, and also includes a chuck, a coaxial clamping assembly, an adjusting assembly, a rotating cylinder and a grinding assembly. The chuck is arranged inside the CNC lathe body, and the chuck includes an inner chuck and an outer chuck. The outer chuck is fixed and coaxially installed on the outside of the inner chuck. The inner chuck is coaxially fixedly connected to the tail end of the main shaft of the CNC lathe body. The coaxial clamping assembly is arranged inside the inner chuck and the outer chuck, and the adjusting assembly is arranged inside the inner chuck and the outer chuck. The rotating cylinder is rotatably installed at the end of the tailstock, and a conical top block is detachably installed at the end of the rotating cylinder. The grinding assembly is installed inside the tailstock. Through the above technical scheme, the technical problem in the prior art that when processing the cylinder barrel of a hydraulic cylinder, the clamping positions are different when processing the outer circle and the inner hole respectively, which makes it difficult to ensure good coaxiality is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of hydraulic cylinder processing, and in particular, to an automatic processing device for the cylinder barrel of a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder is the core actuator of the hydraulic system. Its main function is to convert hydraulic energy into mechanical energy to drive the load to achieve linear reciprocating motion or swinging. It is often used in excavator bucket drive, stamping machine power output, etc. It consists of a cylinder, piston, piston rod, end cover and sealing system. Among them, the piston and piston rod are used to transmit push and pull forces, the end cover and sealing system use a combined sealing ring to ensure that the hydraulic oil does not leak. The cylinder is a high-pressure sealed cavity and is the core pressure-bearing component of the entire hydraulic cylinder.

[0003] In the prior art, when producing the cylinder barrel of a hydraulic cylinder, a band saw or a circular saw is first used to cut the steel pipe to obtain a billet of suitable size, which is then sent to a CNC lathe to process the outer circle and inner hole of the cylinder barrel, leaving a margin, and then the end face of the cylinder barrel is processed and chamfered to provide a reference for subsequent positioning. After heat treatment, the outer circle, inner hole and end face of the cylinder barrel are precision-turned by a lathe, and then the inner hole is precisely processed, for example, using a planetary honing machine and diamond grinding wheels to grind the inner hole, thereby trimming the inner hole, and then rolling is used to increase the hardness of the inner wall of the cylinder barrel, and then the end and functional structure are processed to complete the manufacture of the cylinder barrel.

[0004] When fine turning the outer circle, inner hole and end face of the cylinder and then precision machining the inner hole, the CNC lathe can complete the fine turning of the outer circle and fine boring of the inner hole in one clamping. However, when clamping the cylinder, the clamping jaws generally clamp the outer wall of the cylinder. In this way, when fine machining the outer circle, a part of it cannot be machined. Moreover, if the cylinder is long and the inner hole is deep, it is difficult to fine machine the inner hole and outer circle in one clamping. At this time, the outer circle of the cylinder is generally fine turned by CNC lathes and other equipment, and then it is transferred to the boring machine, and then the inner hole is fine bored and polished. However, since they are processed separately, it is difficult to ensure good coaxiality. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present invention provides an automatic processing equipment for the cylinder barrel of a hydraulic cylinder, which is used to solve the technical problem in the prior art that when processing the cylinder barrel of a hydraulic cylinder, the clamping positions are different when processing the outer circle and the inner hole respectively, which makes it difficult to ensure good coaxiality.

[0006] The technical solutions of the present invention are as follows:

[0007] An automatic processing device for the cylinder barrel of a hydraulic oil cylinder includes a CNC lathe body, a tailstock is provided inside the CNC lathe body, and further includes:

[0008] A chuck is provided inside the CNC lathe body, and the chuck includes an inner chuck and an outer chuck. The outer chuck is fixed and coaxially mounted on the outside of the inner chuck. The inner chuck is coaxially fixedly connected to the tail end of the spindle of the CNC lathe body.

[0009] Coaxial clamping assembly, the inner chuck and the outer chuck are both provided with the coaxial clamping assembly, the coaxial clamping assembly on the inner chuck is used to clamp the inner wall of the cylinder, and the coaxial clamping assembly on the outer chuck is used to clamp the outer wall of the cylinder, so as to match different processing conditions;

[0010] An adjustment assembly is provided inside the inner chuck and the outer chuck, and the adjustment assembly inside the inner chuck and the adjustment assembly inside the outer chuck are independently operated to control the position of the coaxial clamping assembly;

[0011] A rotating cylinder, the tailstock end portion of which is rotatably mounted, and the end portion of which is detachably mounted with a conical top block;

[0012] A grinding assembly is installed inside the tailstock and is used for grinding the inside of the cylinder.

[0013] On the basis of the above scheme, the coaxial clamping assembly includes:

[0014] A first slide and a second slide, wherein a plurality of the first slides and the second slides are fixedly mounted at equal angles in a circular shape between the inner chuck and the outer chuck, and the plurality of the first slides and the plurality of the second slides are staggered;

[0015] The first slide and the second slide are staggered in an evenly divided circle to ensure balanced force in three directions;

[0016] a first positioning frame and a second positioning frame, wherein the first positioning frame is slidably mounted inside each of the first slides, and the second positioning frame is slidably mounted inside each of the second slides, and the distances from several first positioning frames and several second positioning frames to the center position of the inner chuck are equal;

[0017] The clamping part is installed inside the plurality of the first positioning frames and the plurality of the second positioning frames, and is used to clamp the cylinder to be processed.

[0018] On the basis of the above solution, the clamping portion includes:

[0019] A claw is slidably mounted inside each of the first positioning frames and each of the second positioning frames, and the mounting directions of the claws in several of the first positioning frames and the claws in several of the second positioning frames are opposite;

[0020] A first driving member is fixedly installed inside each of the first positioning frames and each of the second positioning frames, and an output end of the first driving member is fixedly connected to the claw.

[0021] Based on the above solution, the adjustment component includes:

[0022] A flat threaded disc is rotatably mounted inside the inner chuck.

[0023] A tooth groove is provided on one side of each of the first positioning frames, and the tooth groove is engaged with the thread of the planar threaded disk;

[0024] a first helical gear, the first helical gear being coaxially and fixedly mounted on the planar threaded disk;

[0025] a first driving member, the first driving member being installed between the inner chuck and the outer chuck and configured to drive the first bevel gear to rotate;

[0026] An adjusting portion is installed inside the outer chuck and is used to adjust the position of the second positioning frame.

[0027] On the basis of the above solution, in order to adjust the first bevel gear to rotate, the first driving member includes:

[0028] A first sleeve, wherein a plurality of the first sleeves are fixedly mounted at equal angles in a circle between the inner chuck and the outer chuck, a first sleeve shaft is rotatably mounted inside each of the first sleeves, and a square hole is formed at the end of each first sleeve shaft;

[0029] A second helical gear is fixedly mounted on one end of each first sleeve shaft close to the first helical gear, the second helical gear is meshed with the first helical gear, and the first helical gear is located inside the inner chuck.

[0030] On the basis of the above solution, the adjustment unit includes:

[0031] A third helical gear, two of which are symmetrically and rotatably mounted inside the outer chuck, and are fixedly mounted together;

[0032] A fourth helical gear, wherein a plurality of the fourth helical gears are mounted in a circular shape and rotated at equal angles inside the outer chuck, wherein each of the plurality of the fourth helical gears is meshed with one of the third helical gears, and each of the plurality of the fourth helical gears corresponds one-to-one to a plurality of the second slides;

[0033] An adjusting screw, wherein the bottom of each of the fourth helical gears is fixedly mounted with the adjusting screw, the adjusting screw being rotatably connected to the inner bottom wall of the second slide, and an adjusting nut being threadedly sleeved on each of the adjusting screws, the adjusting nut being fixedly connected to the second adjusting frame;

[0034] A second driving member is mounted on the outer chuck and is used to drive the third bevel gear to rotate.

[0035] On the basis of the above solution, in order to adjust the third bevel gear to rotate, the second driving member includes:

[0036] Second sleeves: a plurality of second sleeves are fixedly mounted at equal angles in a circular shape inside the outer chuck, a second sleeve shaft is rotatably mounted inside each second sleeve, and a square hole is also opened at the end of each second sleeve shaft;

[0037] A fifth helical gear is fixedly mounted on one end of each second sleeve shaft close to the third helical gear, the fifth helical gear is meshed with another third helical gear, and the fifth helical gear is located inside the outer chuck.

[0038] On the basis of the above scheme, in order to process the inner wall of the cylinder, the grinding assembly includes:

[0039] An extension cylinder is slidably mounted on the tailstock, is located inside the rotating cylinder, and is coaxially arranged with the inner chuck;

[0040] A plurality of slide grooves are provided at equal angles on one end of the extending tube close to the inner chuck, a grinding frame is slidably installed in each slide groove, the bottom of each grinding frame is set as an inclined surface, and a grinding block is installed on the outside of each grinding frame;

[0041] A second driving member is fixedly installed inside the extending tube, and a conical push rack is fixedly installed on the output end of the second driving member. The conical push rack is coaxially arranged with the extending tube, and the conical push rack abuts against the bottom inclined surface of the grinding frame;

[0042] A pushing portion is mounted on the tailstock and is used to push the extending tube to move.

[0043] On the basis of the above solution, the pushing part includes:

[0044] A rotating motor, wherein the rotating motor is fixedly mounted on the tailstock;

[0045] A pushing screw is fixedly mounted on the output end of the driving motor, the pushing screw is located inside the extending tube, a pushing nut is threadedly sleeved on the pushing screw, and the pushing nut is fixedly connected to the extending tube.

[0046] The beneficial effects of the embodiments of the present invention are:

[0047] 1. In the present invention, the first driving member drives the first bevel gear to rotate, and the first bevel gear drives the flat threaded disk to rotate, thereby driving the first adjustment frame to move through the engagement of the threads on the flat threaded disk and the tooth grooves on the side of the first adjustment frame, thereby driving the corresponding clamping claws to move. The adjustment methods of the first adjustment frame and the second adjustment frame are independent of each other, thereby adapting to different clamping methods for processing outer circles and inner holes, and facilitating operation.

[0048] 2. In the present invention, the inner chuck and the outer chuck are coaxially mounted together. After the outer circle is processed, when the clamping position is changed, the coaxiality of the cylinder clamping can be ensured, so as to improve the processing accuracy.

[0049] 3. In the present invention, when processing the outer circle, several first positioning frames are driven to move. At this time, the first driving members in the several first positioning frames are started, and the first driving members drive the claws to move until the claws move to the clamping position, so that the cylinder can be clamped through the inner hole of the cylinder, thereby processing the outer circle. When it is necessary to process the inner hole, the third bevel gear is driven to drive the several fourth bevel gears to rotate, thereby driving the corresponding adjusting screws to rotate, and the corresponding second positioning frames are pushed to move through the adjusting nut, and then the first driving members in the several second positioning frames are started synchronously. The first driving members drive the claws to move until the claws move to the clamping position to clamp the outer circle of the cylinder, and then the claws in the first positioning frame are retracted, and the inner hole can be processed, thereby ensuring coaxiality.

[0050] 4. In the present invention, with the cooperation of the coaxial clamping assembly and the adjusting assembly, the inner wall of the cylinder is clamped by the claws on the first adjusting frame, and the outer wall of the cylinder is clamped by the claws on the second adjusting frame. In this way, by switching the clamping mode, the clamping area is prevented from overlapping with the processing area of ​​the outer circle and the inner hole, thereby realizing full surface processing of the outer circle and the inner hole. Under the action of the grinding assembly, the inner hole of the cylinder can be processed without replacing processing equipment such as a boring machine. While improving the processing efficiency, it also reduces the occurrence of excessive coaxiality errors caused by changing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0052] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0053] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0054] Figure 3 Schematic diagram of the structure of the coaxial clamping assembly in the present invention;

[0055] Figure 4 It is a cross-sectional structural diagram of the coaxial clamping assembly and the adjustment assembly in the present invention;

[0056] Figure 5 It is a cross-sectional structural diagram of the coaxial clamping assembly and the adjustment assembly in another angle in the present invention;

[0057] Figure 6 It is a schematic cross-sectional structural diagram of the cooperation between the first slide, the first position adjustment frame and the clamping portion in the present invention;

[0058] Figure 7 It is a cross-sectional structural diagram of the cooperation of the second slide, the second position adjustment frame, the adjustment portion and the clamping portion in the present invention;

[0059] Figure 8 It is a cross-sectional structural diagram of the cooperation between the grinding assembly and the pushing part in the present invention;

[0060] Figure 9 It is a schematic cross-sectional structural diagram of the grinding assembly in the present invention.

[0061] In the figure: 1. CNC lathe body; 2. Tailstock; 3. Inner chuck; 4. Outer chuck; 5. Rotating cylinder; 6. Conical top block; 7. First slide; 8. Second slide; 9. First adjustment frame; 10. Second adjustment frame; 11. Clamping claw; 12. First driving member; 13. Flat threaded disk; 14. Tooth groove; 15. First bevel gear; 16. First sleeve; 17. First sleeve shaft; 18. Second bevel gear; 19. Third bevel gear; 20. Fourth bevel gear; 21. Adjusting screw; 22. Adjusting nut; 23. Second sleeve; 24. Second sleeve shaft; 25. Fifth bevel gear; 26. Extending cylinder; 27. Slide; 28. Grinding frame; 29. ​​Grinding block; 30. Second driving member; 31. Conical push frame; 32. Driving motor; 33. Pushing screw; 34. Pushing nut. DETAILED DESCRIPTION

[0062] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0063] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0064] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0065] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0066] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0067] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0068] like Figures 1 to 9As shown, it shows an automatic processing equipment for the cylinder barrel of a hydraulic cylinder in one embodiment of the present invention, including a CNC lathe body 1, a tailstock 2 is provided inside the CNC lathe body 1, and also includes a chuck, a coaxial clamping assembly, an adjustment assembly, a rotating cylinder 5 and a grinding assembly. A chuck is provided inside the CNC lathe body 1, and the chuck includes an inner chuck 3 and an outer chuck 4. The outer chuck 4 is fixed and coaxially installed on the outside of the inner chuck 3. The inner chuck 3 is coaxially fixedly connected to the tail end of the spindle of the CNC lathe body 1. Coaxial clamping assemblies are provided inside the inner chuck 3 and the outer chuck 4. The coaxial clamping assembly on the inner chuck 3 is used to clamp the inner wall of the cylinder barrel, and the coaxial clamping assembly on the outer chuck 4 is used to clamp the outer wall of the cylinder barrel, so as to match different The processing situation of the coaxial clamping assembly includes a first slide 7, a second slide 8, a first positioning frame 9, a second positioning frame 10 and a clamping part. Several first slides 7 and second slides 8 are fixedly installed at equal angles in a circular shape between the inner chuck 3 and the outer chuck 4. Several first slides 7 and several second slides 8 are staggered. A first positioning frame 9 is slidably installed inside each first slide 7, and a second positioning frame 10 is slidably installed inside each second slide 8. The distances from several first positioning frames 9 and several second positioning frames 10 to the center position of the inner chuck 3 are equal. Clamping parts are installed inside several first positioning frames 9 and several second positioning frames 10 for clamping the cylinder to be processed.

[0069] It should be noted that when processing the cylinder, first select a suitable blank, then cut and straighten it, clamp it on the lathe, and rough-process the outer circle and inner hole. After that, fine-process the outer circle, and then use a boring machine to fine-process the inner hole. Then, roll and hone the inner hole to complete the processing of the cylinder.

[0070] Specifically, when it is necessary to process the outer circle and inner hole of the cylinder, the first positioning frames 9 in the first slides 7 are driven to move by adjusting the setting of the assembly, until the first positioning frames 9 drive the corresponding clamping parts to contact the inner hole of the cylinder and fix the cylinder. Then, the tailstock 2 of the tailstock 2 can be adjusted, and the conical top block 6 on the tailstock 2 can be pressed against the tail end of the cylinder to ensure that the cylinder and the main shaft of the CNC lathe body 1 are coaxially arranged. Then, the driving device can be started to drive the main shaft to rotate, thereby driving the inner chuck 3 and the outer chuck 4 to rotate, thereby driving the clamped cylinder to rotate. At this time, the conical top block 6 rotates synchronously under the action of the rotating cylinder 5, and then the cylinder is rotated. Through the cooperation of the lathe saddle and the transverse slide, the outer circle of the cylinder is processed by the turning tool on the tool holder of the transverse slide until the processing is completed, and then the second positioning frames 10 in the several second slides 8 are driven to move through the setting of the adjustment component, thereby driving the clamping part to move, until the several second positioning frames 10 drive the corresponding clamping parts to contact the outer circle of the cylinder and fix the cylinder, and then use the center frame and other supporting structures to support the cylinder, and then retract the tailstock 2 to leave a certain gap between the conical top block 6 and the tail end of the cylinder, and then turn on the grinding component, and the inner hole of the cylinder can be ground as the cylinder rotates, thereby completing the processing of the outer circle and inner hole of the cylinder.

[0071] The above, such as Figure 6 、 Figure 7 As shown, the clamping portion includes a claw 11 and a first driving member 12. A claw 11 is slidably installed inside each first positioning frame 9 and each second positioning frame 10. The installation directions of the claws 11 in several first positioning frames 9 and the claws 11 in several second positioning frames 10 are opposite. A first driving member 12 is fixedly installed inside each first positioning frame 9 and each second positioning frame 10, and the output end of the first driving member 12 is fixedly connected to the claw 11.

[0072] Specifically, when it is necessary to clamp the cylinder, if it is the outer circle of the cylinder that needs to be clamped, it is necessary to start the first driving members 12 in several second positioning frames 10, and the first driving members 12 drive the claws 11 to move until the claws 11 move to the clamping position. If it is the inner hole of the cylinder that needs to be clamped, it is necessary to start the first driving members 12 in several first positioning frames 9, and the first driving members 12 drive the claws 11 to move until the claws 11 move to the clamping position. When clamping is not needed, the claws 11 are first removed to disconnect them from the cylinder, and then the corresponding first driving members 12 are retracted, and the claws 11 are moved back to the first slide 7 or the second slide 8 at the corresponding position.

[0073] It should be added that after fine turning the outer circle, when the inner hole needs to be fine bored, in order to ensure the surface quality of the fine turned surface, a copper sheet can be placed at the contact position between the clamping jaws and the outer circle to prevent the clamping jaws from damaging the surface.

[0074] like Figures 3 to 7 As shown, adjustment components are provided inside the inner chuck 3 and the outer chuck 4. The adjustment components inside the inner chuck 3 and the adjustment components inside the outer chuck 4 are independently operated to control the position of the coaxial clamping component. The adjustment component includes a flat threaded disk 13, a tooth groove 14, a first bevel gear 15, a first driving member and an adjusting part. The flat threaded disk 13 is rotatably installed inside the inner chuck 3. The flat threaded disk 13 and each first positioning frame 9 are provided with a tooth groove 14 on one side. The tooth groove 14 is engaged with the thread of the flat threaded disk 13. The first bevel gear 15 is coaxially and fixedly installed on the flat threaded disk 13. The first driving member is installed between the inner chuck 3 and the outer chuck 4 for driving the first bevel gear 15 to rotate. The adjusting part is installed inside the outer chuck 4 for adjusting the position of the second positioning frame 10.

[0075] Specifically, when adjusting the position of the first positioning frame 9, the first driving member is set to drive the first bevel gear 15 to rotate, and the first bevel gear 15 drives the flat threaded disk 13 to rotate, thereby driving the first positioning frame 9 to move through the engagement of the threads on the flat threaded disk 13 and the tooth grooves 14 on the side of the first positioning frame 9, and adjusting the position of the second positioning frame 10 through the setting of the adjustment part.

[0076] The above, such as Figure 4 、 Figure 5 As shown, the first driving member includes a first sleeve 16 and a second bevel gear 18. Several first sleeves 16 are fixedly installed at equal angles in a circular shape between the inner chuck 3 and the outer chuck 4. First sleeve shafts 17 are rotatably installed inside the several first sleeves 16. A square hole is provided at the end of each first sleeve shaft 17. A second bevel gear 18 is fixedly installed at one end of each first sleeve shaft 17 close to the first bevel gear 15. The second bevel gear 18 is meshed with the first bevel gear 15. The first bevel gear 15 is located inside the inner chuck 3.

[0077] Specifically, when adjusting the position of the first adjustment frame 9, a tool is used to insert into the square hole at the end of the first sleeve shaft 17, and then the tool is twisted to make the first sleeve shaft 17 rotate in the first sleeve 16, thereby driving the corresponding second bevel gear 18 to rotate, and the second bevel gear 18 can drive the first bevel gear 15 to rotate.

[0078] The above, such as Figure 4 、 Figure 5As shown, the adjusting part includes a third bevel gear 19, a fourth bevel gear 20, a positioning screw 21 and a second driving member. Two third bevel gears 19 are symmetrically and rotatably installed inside the outer chuck 4. The two third bevel gears 19 are fixedly installed together. Several fourth bevel gears 20 are installed in a circular and equal-angle rotation inside the outer chuck 4. Several fourth bevel gears 20 are engaged with one third bevel gear 19. Several fourth bevel gears 20 correspond one-to-one to several second slides 8 respectively. An adjusting screw 21 is fixedly installed at the bottom of each fourth bevel gear 20. The adjusting screw 21 is rotatably connected to the inner bottom wall of the second slide 8. An adjusting nut 22 is threadedly sleeved on each adjusting screw 21. The adjusting nut 22 is fixedly connected to the second adjusting frame 10. The second driving member is installed on the outer chuck 4 for driving the third bevel gear 19 to rotate.

[0079] Specifically, when adjusting the position of the second positioning frame 10, the second driving member is set to drive one of the third bevel gears 19 to rotate, so that the other third bevel gear 19 drives several fourth bevel gears 20 to rotate, and the fourth bevel gears 20 drive the corresponding adjusting screw 21 to rotate, thereby pushing the corresponding second positioning frame 10 to move through the setting of the adjusting nut 22.

[0080] The above, such as Figure 4 、 Figure 5 As shown, the second driving member includes a second sleeve 23 and a fifth bevel gear 25. Several second sleeves 23 are fixedly installed at equal angles in a circular shape inside the outer chuck 4. A second sleeve shaft 24 is rotatably installed inside each second sleeve 23. A square hole is also provided at the end of each second sleeve shaft 24. A fifth bevel gear 25 is fixedly installed at one end of each second sleeve shaft 24 close to the third bevel gear 19. The fifth bevel gear 25 is meshed with another third bevel gear 19. The fifth bevel gear 25 is located inside the outer chuck 4.

[0081] Specifically, when driving the third bevel gear 19 to rotate, use a tool to insert into the square hole at the end of the second sleeve shaft 24, and then twist the tool to make the second sleeve shaft 24 rotate in the second sleeve 23, thereby driving the corresponding fifth bevel gear 25 to rotate, and the fifth bevel gear 25 can drive the corresponding third bevel gear 19 to rotate.

[0082] like Figure 8 、 Figure 9As shown, a rotating cylinder 5 is rotatably mounted on the end of the tailstock 2, and a conical top block 6 is detachably mounted on the end of the rotating cylinder 5. The grinding assembly is mounted inside the tailstock 2 for grinding the inside of the cylinder. The grinding assembly includes an extension cylinder 26, a slide 27, a second driving member 30 and a pushing portion. An extension cylinder 26 is slidably mounted on the tailstock 2. The extension cylinder 26 is located inside the rotating cylinder 5. The extension cylinder 26 is coaxially arranged with the inner chuck 3. A plurality of slide grooves 27 are opened at equal angles on one end of the extension cylinder 26 close to the inner chuck 3. 7. A grinding frame 28 is slidably installed in each slide groove 27. The bottom of each grinding frame 28 is set to an inclined surface. A grinding block 29 is installed on the outside of each grinding frame 28. A second driving member 30 is fixedly installed inside the extending cylinder 26. A conical push frame 31 is fixedly installed at the output end of the second driving member 30. The conical push frame 31 is coaxially arranged with the extending cylinder 26. The conical push frame 31 abuts against the inclined surface of the bottom of the grinding frame 28. The pushing portion is installed on the tailstock 2 to push the extending cylinder 26 to move.

[0083] Specifically, when grinding the inner hole of the cylinder, the pushing part is started to extend one end of the protruding tube 26 out of the rotating cylinder 5, and then the second driving member 30 is started. The second driving member 30 pushes the conical pushing frame 31 to move, so that the conical pushing frame 31 and the inclined surface at the bottom of the grinding frame 28 cooperate with each other, and the grinding frame 28 slides in the slide groove 27 until the position of the grinding frame 28 is adjusted. At this time, the cylinder is driven to rotate, and then the protruding tube 26 is pushed to move through the setting of the pushing part, so that the inner wall of the cylinder is ground by the setting of the grinding block 29.

[0084] It should be noted that the first driving member 12 and the second driving member 30 are preferably in the form of electric cylinders.

[0085] The above, such as Figure 8 As shown, the pushing part includes a driving motor 32 and a pushing screw 33. The driving motor 32 is fixedly mounted on the tailstock 2. The output end of the driving motor 32 is fixedly mounted with a pushing screw 33. The pushing screw 33 is located inside the extending tube 26. A pushing nut 34 is threadedly sleeved on the pushing screw 33. The pushing nut 34 is fixedly connected to the extending tube 26.

[0086] Specifically, when the extending tube 26 is pushed to move, the driving motor 32 is started, and the driving motor 32 drives the pushing screw 33 to rotate, thereby pushing the extending tube 26 to move through the pushing nut 34.

[0087] The working principle or usage process of this application is as follows:

[0088] When processing the outer circle and inner hole of the cylinder, first place the cylinder to be processed on the clamping end of the chuck, then use a tool to insert it into the square hole at the end of the first sleeve shaft 17, and then twist the tool to make the first sleeve shaft 17 rotate in the first sleeve 16, thereby driving the corresponding second bevel gear 18 to rotate, and the second bevel gear 18 can drive the first bevel gear 15 to rotate, and the first bevel gear 15 drives the flat threaded disk 13 to rotate, so that the first adjusting frame 9 is driven to move through the engagement of the threads on the flat threaded disk 13 and the tooth grooves 14 on the side of the first adjusting frame 9. At this time, the first driving members 12 in several first adjusting frames 9 are started, and the first driving members 12 drive the claws 11 to move until the claws 11 move to the clamping position, so that the cylinder can be clamped through the inner hole of the cylinder, and then the tailstock 2 of the tailstock 2 is adjusted, and the conical top block 6 on the tailstock 2 is pushed against the tail end of the cylinder to ensure that the cylinder is coaxial with the main shaft of the CNC lathe body 1. At this time, the outer circle of the cylinder can be processed.

[0089] Start the driving device to drive the main shaft to rotate, thereby driving the inner chuck 3 and the outer chuck 4 to rotate, thereby driving the clamped cylinder to rotate. At this time, the conical top block 6 rotates synchronously under the action of the rotating cylinder 5, and then through the cooperation of the lathe saddle and the transverse slide, the outer circle of the cylinder is processed by the turning tool on the tool holder of the transverse slide until the outer circle of the cylinder is processed.

[0090] Then, the outer circle of the cylinder is clamped. At this time, a tool is inserted into the square hole at the end of the second sleeve shaft 24, and then the tool is twisted to make the second sleeve shaft 24 rotate in the second sleeve 23, thereby driving the corresponding fifth bevel gear 25 to rotate. The fifth bevel gear 25 can drive the corresponding third bevel gear 19 to rotate, so that another third bevel gear 19 drives several fourth bevel gears 20 to rotate, and the fourth bevel gear 20 drives the corresponding adjustment screw 21 to rotate, thereby pushing the corresponding second adjustment frame 10 to move through the setting of the adjustment nut 22, and synchronously starting the first driving members 12 in several second adjustment frames 10. The first driving member 12 drives the claw 11 to move until the claw 11 moves to the clamping position and clamps the outer circle of the cylinder. The position of the claw 11 in the first adjustment frame 9 can be adjusted, and then the first driving member 12 in the first adjustment frame 9 is retracted, the claw 11 is moved back to the first slide 7 at the corresponding position, and the tailstock 2 is retracted to leave a certain gap between the conical top block 6 and the tail end of the cylinder.

[0091] At this time, the inner hole of the cylinder is processed, and the driving motor 32 is started. The driving motor 32 drives the pushing screw 33 to rotate, thereby pushing the protruding tube 26 to move through the pushing nut 34, and extending one end of the protruding tube 26 out of the rotating cylinder 5, and then the second driving member 30 is started. The second driving member 30 pushes the conical push frame 31 to move, so that through the cooperation of the conical push frame 31 and the inclined surface at the bottom of the grinding frame 28, the grinding frame 28 slides in the slide groove 27 until the position of the grinding frame 28 is adjusted. At this time, the cylinder is driven to rotate, and then through the setting of the driving motor 32, with the cooperation of the pushing screw 33 and the pushing nut 34, the protruding tube 26 is pushed to move, so that the inner wall of the cylinder is polished by the setting of the grinding block 29, and the cylinder can be taken out after the processing is completed.

[0092] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic processing device for the cylinder barrel of a hydraulic oil cylinder, comprising a CNC lathe body (1), wherein a tailstock (2) is provided inside the CNC lathe body (1), and characterized in that: Also includes: A chuck is provided inside the CNC lathe body (1), and the chuck comprises an inner chuck (3) and an outer chuck (4), the outer chuck (4) being fixed and coaxially mounted outside the inner chuck (3), and the inner chuck (3) being coaxially fixedly connected to the tail end of the spindle of the CNC lathe body (1); A coaxial clamping assembly is provided inside the inner chuck (3) and the outer chuck (4). The coaxial clamping assembly on the inner chuck (3) is used to clamp the inner wall of the cylinder, and the coaxial clamping assembly on the outer chuck (4) is used to clamp the outer wall of the cylinder, so as to match different processing conditions. A first slide (7) and a second slide (8), wherein a plurality of the first slides (7) and the second slides (8) are fixedly installed at equal angles in a circular shape between the inner chuck (3) and the outer chuck (4), and the plurality of the first slides (7) and the plurality of the second slides (8) are arranged in a staggered manner; A first positioning frame (9) and a second positioning frame (10), wherein the first positioning frame (9) is slidably mounted inside each of the first slides (7), and the second positioning frame (10) is slidably mounted inside each of the second slides (8), and the distances from a plurality of the first positioning frames (9) and a plurality of the second positioning frames (10) to the center position of the inner chuck (3) are all equal; A rotating cylinder (5), the rotating cylinder (5) is rotatably mounted on the end of the tailstock (2), and a conical top block (6) is detachably mounted on the end of the rotating cylinder (5); A grinding assembly is installed inside the tailstock (2) and is used to grind the inside of the cylinder. The grinding assembly includes: An extension cylinder (26), the extension cylinder (26) is slidably mounted on the tailstock (2), the extension cylinder (26) is located inside the rotating cylinder (5), and the extension cylinder (26) is coaxially arranged with the inner chuck (3); A slide groove (27), a plurality of slide grooves (27) are provided at equal angles on one end of the protruding tube (26) close to the inner chuck (3), a grinding frame (28) is slidably installed in each of the slide grooves (27), the bottom of each of the grinding frames (28) is set as an inclined surface, and a grinding block (29) is installed on the outside of each of the grinding frames (28); A second driving member (30), the second driving member (30) is fixedly installed inside the extending tube (26), a conical push frame (31) is fixedly installed at the output end of the second driving member (30), the conical push frame (31) is coaxially arranged with the extending tube (26), and the conical push frame (31) abuts against the bottom inclined surface of the grinding frame (28); A pushing portion is mounted on the tailstock (2) and is used to push the extending cylinder (26) to move.

2. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: It also includes a clamping portion, wherein the clamping portion is installed inside a plurality of the first positioning frames (9) and a plurality of the second positioning frames (10) for clamping the cylinder to be processed, and the clamping portion includes: A clamping claw (11), wherein each of the first positioning frame (9) and each of the second positioning frame (10) is slidably mounted with the clamping claw (11); A first driving member (12) is fixedly installed inside each of the first positioning frames (9) and each of the second positioning frames (10), and an output end of the first driving member (12) is fixedly connected to the clamping claw (11).

3. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 2, characterized in that: The mounting directions of the clamping claws (11) in the plurality of first positioning frames (9) and the mounting directions of the clamping claws (11) in the plurality of second positioning frames (10) are opposite.

4. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 1, characterized in that: It also includes an adjustment component, which is provided inside the inner chuck (3) and the outer chuck (4). The adjustment component inside the inner chuck (3) and the adjustment component inside the outer chuck (4) are independently operated to control the position of the coaxial clamping component. The adjustment component includes: A flat threaded disc (13) is rotatably mounted inside the inner chuck (3). The flat threaded disc (13) A tooth groove (14), one side of each of the first positioning frames (9) is provided with the tooth groove (14), the tooth groove (14) being engaged with the thread of the planar threaded disk (13); a first helical gear (15), the first helical gear (15) being coaxially and fixedly mounted on the planar threaded disc (13); a first driving member, the first driving member being installed between the inner chuck (3) and the outer chuck (4) and being used to drive the first bevel gear (15) to rotate; An adjusting portion, which is installed inside the outer chuck (4) and is used to adjust the position of the second position adjustment frame (10).

5. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 4, characterized in that: The first driving member comprises: A first sleeve (16), wherein a plurality of the first sleeves (16) are fixedly installed at equal angles in a circular shape between the inner chuck (3) and the outer chuck (4), and a first sleeve shaft (17) is rotatably installed inside the plurality of the first sleeves (16), and a square hole is opened at the end of each first sleeve shaft (17); A second helical gear (18), wherein one end of each first sleeve shaft (17) close to the first helical gear (15) is fixedly mounted with the second helical gear (18), the second helical gear (18) being meshed with the first helical gear (15), and the first helical gear (15) being located inside the inner chuck (3).

6. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 5, characterized in that: The adjustment unit includes: A third helical gear (19), two third helical gears (19) are symmetrically and rotatably mounted inside the outer chuck (4), and the two third helical gears (19) are fixedly mounted together; A fourth helical gear (20), wherein a plurality of the fourth helical gears (20) are installed in a circular shape and rotated at equal angles inside the outer chuck (4), and the plurality of the fourth helical gears (20) are all engaged with one of the third helical gears (19), and the plurality of the fourth helical gears (20) correspond one to one with the plurality of the second slides (8); An adjusting screw (21), wherein the bottom of each of the fourth bevel gears (20) is fixedly mounted with the adjusting screw (21), the adjusting screw (21) is rotatably connected to the inner bottom wall of the second slide (8), and an adjusting nut (22) is threadedly sleeved on each of the adjusting screws (21), and the adjusting nut (22) is fixedly connected to the second adjusting frame (10); A second driving member is mounted on the outer chuck (4) and is used to drive the third bevel gear (19) to rotate.

7. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 6, characterized in that: The second driving member comprises: A second sleeve (23), wherein a plurality of the second sleeves (23) are fixedly mounted at equal angles in a circular shape inside the outer chuck (4), a second sleeve shaft (24) is rotatably mounted inside each of the second sleeves (23), and a square hole is also provided at the end of each of the second sleeve shafts (24); A fifth helical gear (25), wherein one end of each second sleeve shaft (24) close to the third helical gear (19) is fixedly mounted with the fifth helical gear (25), the fifth helical gear (25) being meshed with another third helical gear (19), and the fifth helical gear (25) being located inside the outer chuck (4).

8. The automatic processing equipment for the cylinder barrel of a hydraulic cylinder according to claim 7, characterized in that: The pushing portion includes: A rotating motor (32), wherein the rotating motor (32) is fixedly mounted on the tailstock (2); A pushing screw (33) is fixedly mounted on the output end of the driving motor (32), the pushing screw (33) is located inside the extending tube (26), a pushing nut (34) is threadedly sleeved on the pushing screw (33), and the pushing nut (34) is fixedly connected to the extending tube (26).

Images