A machine tool grinding device

Abstract

The present invention provides a machine tool grinding device, which relates to the field of machine tool grinding processing. The machine tool grinding device includes a processing table, a base is fixed to the middle of the surface of the processing table, a driven adjustment structure for fixing the pipe fitting is provided on the base, and a lower fixed plate is provided on the driven adjustment structure, and a linkage structure for driving the pipe fitting is provided on the lower fixed plate, and an upper bracket is fixed to the outer side of the surface of the processing table, and an active adjustment structure for adjusting the length of the pipe fitting is provided on the upper bracket. The machine tool grinding device can fix the pipe fitting by putting the pipe fitting on the driven adjustment structure, and can adjust the pipe fitting according to the length of the pipe fitting through the active adjustment structure, so that the pipe fitting can be driven to rotate through the linkage structure, and the outer surface and inner wall of the pipe fitting can be ground simultaneously, thereby improving the efficiency of the pipe fitting grinding processing.

Description

Technical Field

[0001] The invention relates to the field of machine tool grinding, in particular to a machine tool grinding device. Background Art

[0002] Machine tool grinding is a machine tool that uses abrasive tools to grind the surface of a workpiece. Machine tools are sometimes used to grind the surface of pipe fittings.

[0003] Application number CN202310120547.4 discloses a novel vertical grinding machine tool, comprising a base table, a positioning and rotating device mounted on the base table, a lifting support frame fixed to the base table, and an automatic grinding device mounted on the lifting movable end of the lifting support frame;

[0004] When the above patent structure is in use, it is mainly used to grind cylindrical tubular workpieces. It mainly clamps and fixes multiple groups of cylindrical tubular workpieces first, and then moves the grinding shaft to make it contact with the outer surface or inner wall of the cylindrical tubular workpiece, so as to achieve the purpose of grinding the cylindrical tubular workpiece. However, when the grinding shaft is grinding the cylindrical tubular workpiece, it can only grind the outer surface or inner wall of the cylindrical tubular workpiece separately first, and cannot grind the outer surface or inner wall of the cylindrical tubular workpiece at the same time, thereby reducing the efficiency of grinding the cylindrical tubular workpiece. In addition, the grinding shaft can only grind one place of the outer surface or inner wall of the cylindrical tubular workpiece, which is inconvenient to grind multiple places at the same time, further reducing the efficiency of grinding the cylindrical tubular workpiece. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In response to the deficiencies of the prior art, the present invention provides a machine tool grinding device that solves the problem that when a machine tool is grinding a cylindrical tubular workpiece, it is inconvenient to grind the outer surface or inner wall of the cylindrical tubular workpiece at the same time, and it is inconvenient to grind multiple locations at the same time.

[0007] (2) Technical solution

[0008] In order to achieve the purpose of facilitating simultaneous grinding of the outer surface or inner wall of a cylindrical tubular workpiece and simultaneously grinding multiple locations when the above machine tool grinds a cylindrical tubular workpiece, the present invention is achieved through the following technical solutions: a machine tool grinding device includes a processing table, a base is fixed to the middle of the surface of the processing table, a driven adjustment structure for fixing the pipe is provided on the base, and a lower fixed plate is provided on the driven adjustment structure, and a linkage structure for driving the pipe is provided on the lower fixed plate, an upper bracket is fixed to the outer side of the surface of the processing table, and an active adjustment structure for adjusting the length of the pipe is provided on the upper bracket;

[0009] Four table legs for supporting the processing table are fixed to the bottom surface thereof. The base is located in the middle of the surface of the processing table. Two groups of upper brackets are provided and are located on the left and right sides of the base.

[0010] Preferably, the base includes four groups of chassis, and the four groups of chassis are rectangular and fixed on the surface of the base. An outer universal joint is installed on the outer side of the upper end surface of the chassis, and a No. 1 electric rod is installed on the outer universal joint. A rotating shaft is rotated in the middle of the upper end surface of the chassis, and a driven gear disk is fixed at the bottom end of the rotating shaft. A driving shaft is rotated in the middle of the base, and a driving gear ring is fixed at the bottom end of the driving shaft, and a lower universal joint is installed on the top of the driving gear ring.

[0011] Preferably, the driven gear disc and the driving gear ring are located below the processing table, the driven gear disc is located on the inner side of the driving gear ring, the driving gear ring is engaged with the driven gear disc, and the No. 1 electric rod is arranged in four groups along the circumferential direction of the chassis, and an external universal joint is installed at the top of the No. 1 electric rod.

[0012] Preferably, the lower fixed plate is located above the base, and the two ends of the No. 1 electric rod are rotatably connected to the base and the lower fixed plate respectively through external universal joints. The lower fixed plate includes a guide groove, and the guide groove is opened on the inner and outer sides of the end surface of the lower fixed plate along the circumferential direction of the lower fixed plate. A guide block slides in the guide groove, and a screw rod is threadedly connected to the outer surface of the lower fixed plate. A sliding shaft slides on the outer surface of the lower fixed plate, and the screw rod is rotatably connected to the guide block through a bearing ring. The sliding shaft is fixedly connected to the guide block, an outer fastening ring is fixed on the outer guide block, an outer linkage ring slides between the outer fastening rings, and an inner fastening ring is fixed on the inner guide block. An inner linkage ring slides between the fastening rings, and a linkage gear plate is rotated between the end surface of the lower fixed plate and the outer fastening ring. An outer gear rod is fixed to the lower side of the inner surface of the outer fastening ring, and an inner gear rod is fixed to the lower side of the outer surface of the inner fastening ring, and the outer gear rod and the inner gear rod are located on both sides of the linkage gear plate and mesh with the linkage gear plate. An outer ball is rotated on the upper side of the inner surface of the outer fastening ring, and an inner ball is rotated on the upper side of the outer surface of the inner fastening ring. A fixing ring is provided between the outer fastening ring and the inner fastening ring, and a No. 2 electric rod is mounted and fixed on the fixing ring. Open sliding grooves are provided on the end surfaces of the outer fastening ring and the inner fastening ring.

[0013] Preferably, the outer fastening ring slides radially along the lower fixed plate through the guide groove and the guide block on one side thereof, and the inner fastening ring slides radially along the lower fixed plate through the guide groove and the guide block on one side thereof, the outer fastening ring and the outer linkage ring are staggered and arranged in four groups each, and the outer fastening ring and the outer linkage ring constitute an outer telescopic fastening ring, the inner fastening ring and the inner linkage ring are staggered and arranged in four groups each, and the inner fastening ring and the inner linkage ring constitute an inner telescopic fastening ring.

[0014] Preferably, the linkage structure includes a cavity, which is opened inside the lower fixed plate, and a linkage shaft is rotated inside the lower fixed plate, and a driving bevel gear is fixed on the surface of the linkage shaft and located inside the cavity, and a bidirectional bevel gear is rotated between the top and bottom surfaces of the cavity through a rotating pin, and a pin shaft is rotated inside the guide grooves on both sides, and a driven bevel gear is fixed at the bottom end of the pin shaft and located inside the cavity, and a rotating sleeve is rotated on the surface of the pin shaft and located inside the guide groove, and a sliding rod slides on the convex block on the surface of the rotating sleeve The top of the pin shaft is fixed with a screw sleeve, and the inner thread of the screw sleeve is connected with a screw rod, and a nut is fixed to the top of the screw rod, and the outer side of the outer screw rod is sleeved with an outer grinding roller, and the outer side of the inner screw rod is sleeved with an inner grinding roller. The top ends of the outer grinding roller and the inner grinding roller are provided with screw grooves, and a round tube workpiece is provided between the outer grinding roller and the inner grinding roller. A No. 3 electric rod is installed inside the upper screw rod, and a convex rod is fixed to the bottom end of the No. 3 electric rod, and a convex groove matching the convex rod is provided on the end face of the lower screw rod.

[0015] Preferably, the driving bevel gear is engaged with the bevel gear on the lower side of the bidirectional bevel gear, the bidirectional bevel gear is located between the inner and outer groups of driven bevel gears, and is engaged with the two groups of driven bevel gears, the guide block is located on the outside of the pin shaft, the pin shaft passes through the open slide groove and is slidably connected to it, the slide rod is fixedly connected to the guide block, the No. 2 electric rod is fixedly connected to the linkage shaft through the bracket, and the No. 2 electric rod is located between the upper and lower groups of inner grinding rollers.

[0016] Preferably, the upper bracket includes a longitudinal bracket, a transverse bracket is fixed on the longitudinal bracket, a forward and reverse motor is installed on the transverse bracket, an adjusting bevel gear is fixed on the output end of the forward and reverse motor, a telescopic spline shaft is rotated on the transverse bracket through the bracket, and transverse bevel gears are fixed on both ends of the telescopic spline shaft, a transverse forward and reverse motor is installed in the left and right directions of the longitudinal bracket, a longitudinal forward and reverse motor is installed in the left and front and rear directions of the longitudinal bracket, a transverse screw rod is fixed between the output ends of the transverse forward and reverse motor, a longitudinal screw rod is fixed between the output ends of the longitudinal forward and reverse motor, and the front and rear two The horizontal screw rod of the group is threadedly connected to a horizontal slide, and the left and right groups of longitudinal screw rods are threadedly connected to the longitudinal slide. A through groove is provided on the horizontal slide and the longitudinal slide. A horizontal moving seat is fixedly installed inside the through groove on one side of the horizontal slide, and a vertical moving seat is fixedly installed inside the through groove on one side of the longitudinal slide. Longitudinal bevel teeth are rotatable on the horizontal moving seat and the longitudinal moving seat, and an upper universal joint is installed at the bottom end of the longitudinal bevel teeth, and an upper fixed plate is rotatable at the bottom end of the upper universal joint, and an outer grinding roller and an inner grinding roller are provided on the upper fixed plate, and the outer grinding roller and the inner grinding roller on the upper and lower sides are symmetrically arranged.

[0017] Preferably, the upper fixed plate and the lower fixed plate are symmetrically arranged, and a No. 1 electric rod is provided on the upper fixed plate, and the top end of the No. 1 electric rod is rotatably connected to the transverse moving seat and the longitudinal moving seat through an external universal joint, and the bottom end of the No. 1 electric rod is rotatably connected to the upper fixed plate through an external universal joint, and the inner end of the telescopic spline shaft is rotatably connected to the transverse bracket through a bracket, and the outer end of the telescopic spline shaft is rotatably connected to the transverse moving seat and the longitudinal moving seat through a bracket, and the inner and outer ends of the telescopic spline shaft are rotatably connected to the adjusting bevel gear and the longitudinal bevel gear respectively through transverse bevel gears.

[0018] Preferably, a through slot is provided on the side of the transverse slide, and the longitudinal slide is slidably connected to the transverse slide inside the through slot, and the left and right groups of transverse slides and the front and rear groups of longitudinal slides are vertically slidably connected to each other.

[0019] (3) Beneficial effects

[0020] The present invention provides a machine tool grinding device having the following beneficial effects:

[0021] 1. The horizontal slide can be driven to move left and right by the horizontal screw rod, and the vertical slide can be driven to move forward and backward by the vertical screw rod. Therefore, the horizontal slide and the vertical slide can drive the upper fixed plate to move forward and backward or left and right through the upper universal joint, and the lower fixed plate can be swung forward and backward or left and right by the No. 1 electric rod below, and the upper fixed plate can be swung forward and backward or left and right by the No. 1 electric rod above. When the upper fixed plate is directly above the lower fixed plate, the distance between the outer grinding roller and the inner grinding roller on the upper and lower sides is the shortest, and a shorter round tube workpiece can be installed. Similarly, when the upper fixed plate is located obliquely above the lower fixed plate, the distance between the outer grinding roller and the inner grinding roller on the upper and lower sides becomes longer, and a longer round tube workpiece can be installed.

[0022] 2. After the circular tube workpiece is placed between the outer grinding roller and the inner grinding roller, the outer telescopic fastening ring composed of the outer fastening ring and the outer linkage ring is contracted, and the inner telescopic fastening ring composed of the inner fastening ring and the inner linkage ring is expanded. The top and bottom ends of the circular tube workpiece can be supported and rotated by the outer balls and the inner balls. At the same time, the No. 2 electric rod is started to make its outer end rest against the inner wall of the circular tube workpiece. The circular tube workpiece can be fixed to the linkage shafts on the upper and lower sides through the upper and lower groups of No. 2 electric rods. At this time, the circular tube workpiece is located between the outer grinding roller and the inner grinding roller. Therefore, the circular tube workpiece can be rotated while being clamped and fixed.

[0023] 3. The linkage shaft can drive the circular tube workpiece to rotate through the No. 2 electric rod on its surface. During the rotation of the circular tube workpiece, the linkage shaft engages with the bidirectional bevel gear, which can drive the bidirectional bevel gear to rotate. The driven bevel gear can then drive the screw sleeve, screw and nut, and can drive the outer grinding roller and the inner grinding roller to rotate at different speeds than the circular tube workpiece. Therefore, when the outer grinding roller and the inner grinding roller rotate at different speeds than the circular tube workpiece, different positions on the inner and outer surfaces of the circular tube workpiece can be ground simultaneously during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a bottom view of the structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the upper support structure of the present invention;

[0027] Figure 4 This is a combined diagram of the horizontal slide and the vertical slide structure of the present invention;

[0028] Figure 5 This is a diagram showing the assembly of the external grinding roller and the round tube workpiece according to the present invention;

[0029] Figure 6 This is a diagram showing the assembly of the inner grinding roller, outer grinding roller and round tube workpiece according to the present invention;

[0030] Figure 7 This is an exploded view of the screw and outer grinding roller of the present invention;

[0031] Figure 8 A top view of the outer fastening ring and outer linkage ring of the structure of the present invention;

[0032] Figure 9 This is a top sectional view of the outer fastening ring and the outer linkage ring of the structure of the present invention;

[0033] Figure 10 It is a partial cross-sectional view of the lower fixed plate of the structure of the present invention.

[0034] Among them, 1. processing table; 2. base; 201. chassis; 202. outer universal joint; 203. No. 1 electric rod; 204. rotating shaft; 205. driven gear plate; 206. driving shaft; 207. driving gear ring; 208. lower universal joint; 3. lower fixed plate; 301. guide groove; 302. guide block; 303. screw rod; 304. sliding shaft; 305. outer fastening ring; 306. outer linkage ring; 307. inner fastening ring; 308. inner linkage ring; 309. linkage gear plate; 310. outer gear rod; 311. inner gear rod; 312. outer ball bearing; 313. inner ball bearing; 314. fixing ring; 315. No. 2 electric rod; 316. open slide; 4. linkage structure; 401. cavity; 402. linkage shaft; 403. driving bevel gear; 404. bidirectional bevel gear; 4 05, pin; 406, driven bevel gear; 407, rotating sleeve; 408, slide rod; 409, screw sleeve; 410, screw rod; 411, nut; 412, outer grinding roller; 413, inner grinding roller; 414, screw groove; 415, round tube workpiece; 416, No. 3 electric rod; 417, protruding rod; 5, upper bracket; 501, vertical bracket; 502, horizontal bracket; 503, forward and reverse motor ; 504, adjusting bevel gear; 505, telescopic spline shaft; 506, transverse bevel gear; 507, transverse forward and reverse motor; 508, longitudinal forward and reverse motor; 509, transverse screw rod; 510, longitudinal screw rod; 511, transverse slide; 512, longitudinal slide; 513, through slot; 514, transverse moving seat; 515, longitudinal moving seat; 516, longitudinal bevel gear; 517, upper universal joint; 518, upper fixed plate. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed or operated in a specific direction, and therefore should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, for example, to mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] See also Figure 1 -- Figure 10The present invention provides a technical solution: a machine tool grinding device, comprising a processing table 1, a base 2 is fixed to the middle of the surface of the processing table 1, a driven adjustment structure for fixing a pipe is provided on the base 2, and a lower fixed plate 3 is provided on the driven adjustment structure, and a linkage structure 4 for driving the pipe is provided on the lower fixed plate 3, an upper bracket 5 is fixed to the outer side of the surface of the processing table 1, and an active adjustment structure for adjusting the length of the pipe is provided on the upper bracket 5;

[0037] The bottom surface of the processing table 1 is fixed with four table legs for supporting it. The base 2 is located in the middle of the surface of the processing table 1. There are two sets of upper brackets 5, which are located on the left and right sides of the base 2.

[0038] In this embodiment, the base 2 includes four sets of chassis 201, which are fixed to the surface of the base 2 in a rectangular shape. An outer universal joint 202 is installed on the outer side of the upper end surface of the chassis 201, and a first electric rod 203 is installed on the outer universal joint 202. A rotating shaft 204 rotates in the middle of the upper end surface of the chassis 201, and a driven gear plate 205 is fixed to the bottom end of the rotating shaft 204. A driving shaft 206 rotates in the middle of the base 2, and a driving gear ring 207 is fixed to the bottom end of the driving shaft 206. A lower universal joint 208 is installed on the top of the driving gear ring 207.

[0039] Specifically, the top end of the drive shaft 206 is fixedly connected to the adjusting bevel gear 504, as shown in the attached manual. Figure 1 And the instruction manual Figure 5 As shown, the lower fixed plate 3 can be swung forward and backward or left and right by the No. 1 electric rod 203 at the bottom, and the upper fixed plate 518 can be swung forward and backward or left and right by the No. 1 electric rod 203 at the top, and the axis of the lower fixed plate 3 is parallel to the axis of the upper fixed plate 518, so that round tube workpieces 415 of different lengths can be inserted between the outer grinding roller 412 and the inner grinding roller 413.

[0040] In this embodiment, the driven gear disc 205 and the driving gear ring 207 are located below the processing table 1. The driven gear disc 205 is located inside the driving gear ring 207. The driving gear ring 207 is engaged with the driven gear disc 205. Four groups of No. 1 electric rods 203 are provided along the circumference of the chassis 201, and an outer universal joint 202 is installed at the top of the No. 1 electric rod 203.

[0041] Specifically, the forward and reverse motor 503 can drive the drive shaft 206 to rotate by adjusting the bevel gear 504, and the drive shaft 206 can drive the driven gear plate 205 to rotate through the driving gear ring 207, so that the lower universal joints 208 on the upper and lower sides can rotate at the same time, so that the lower universal joint 208 can drive the circular tube workpiece 415 to rotate from the upper and lower sides at the same time through the No. 2 electric rod 315 on the linkage shaft 402.

[0042] In this embodiment, the lower fixed plate 3 is located above the base 2, and the two ends of the No. 1 electric rod 203 are rotatably connected to the base 2 and the lower fixed plate 3 respectively through the outer universal joint 202. The lower fixed plate 3 includes a guide groove 301. The guide groove 301 is arranged on the inner and outer sides of the end surface of the lower fixed plate 3 along the circumferential direction of the lower fixed plate 3. A guide block 302 slides in the guide groove 301, and a screw rod 303 is threadedly connected to the outer surface of the lower fixed plate 3. A sliding shaft 304 slides on the outer surface of the lower fixed plate 3, and the screw rod 303 is rotatably connected to the guide block 302 through a bearing ring. The sliding shaft 304 is fixedly connected to the guide block 302. An outer fastening ring 305 is fixed on the outer guide block 302, and an outer linkage ring 306 slides between the outer fastening rings 305. An inner fastening ring 307 is fixed on the inner guide block 302, and the inner fastening rings 307 slide between An inner linkage ring 308 is provided, and a linkage gear disc 309 is rotated on the end surface of the lower fixed plate 3 and is located between the outer fastening ring 305 and the inner fastening ring 307. An outer gear rod 310 is fixed to the lower side of the inner surface of the outer fastening ring 305, and an inner gear rod 311 is fixed to the lower side of the outer surface of the inner fastening ring 307. The outer gear rod 310 and the inner gear rod 311 are located on both sides of the linkage gear disc 309 and mesh with the linkage gear disc 309. An outer ball 312 is rotated on the upper side of the inner surface of the outer fastening ring 305, and an inner ball 313 is rotated on the upper side of the outer surface of the inner fastening ring 307. A fixing ring 314 is provided between the outer fastening ring 305 and the inner fastening ring 307, and a No. 2 electric rod 315 is mounted and fixed on the fixing ring 314. An open sliding groove 316 is provided on the end surfaces of the outer fastening ring 305 and the inner fastening ring 307.

[0043] For details, see the attached manual. Figure 6 , Instruction Manual Figure 8 And the instruction manual Figure 9 As shown, when the outer fastening ring 305 moves inward, the outer fastening ring 305 can drive the linkage gear plate 309 to rotate through the outer gear rod 310, and then the linkage gear plate 309 can drive the inner fastening ring 307 to move outward through the inner gear rod 311, so that the outer fastening ring 305 and the inner fastening ring 307 can be brought close to each other, and the outer balls 312 on the outer fastening ring 305 and the inner balls 313 on the inner fastening ring 307 can simultaneously support the circular tube workpiece 415 from both the inside and the outside, so While clamping the circular tube workpiece 415, the circular tube workpiece 415 can also be rotated. In the process of the outer fastening ring 305 and the inner fastening ring 307 moving closer to each other, the guide block 302 moves inside the guide groove 301, and the guide block 302 can slide with the screw sleeve 409 through the slide rod 408. At this time, the pin shaft 405 slides inside the open slide groove 316. Therefore, when the outer fastening ring 305 and the inner fastening ring 307 move closer to each other, there will be no interference with the pin shaft 405.

[0044] In this embodiment, the outer fastening ring 305 slides radially along the lower fixed plate 3 through the guide groove 301 and the guide block 302 on one side thereof, and the inner fastening ring 307 slides radially along the lower fixed plate 3 through the guide groove 301 and the guide block 302 on one side thereof. The outer fastening ring 305 and the outer linkage ring 306 are staggered and arranged in four groups each, and the outer fastening ring 305 and the outer linkage ring 306 constitute an outer telescopic fastening ring, and the inner fastening ring 307 and the inner linkage ring 308 are staggered and arranged in four groups each, and the inner fastening ring 307 and the inner linkage ring 308 constitute an inner telescopic fastening ring;

[0045] Specifically, the circular tube workpiece 415 can be clamped from the outside through the outer telescopic fastening ring composed of the outer fastening ring 305 and the outer linkage ring 306. At this time, the outer ball 312 presses against the circular tube workpiece 415. The circular tube workpiece 415 can be clamped from the inside through the inner telescopic fastening ring composed of the inner fastening ring 307 and the inner linkage ring 308. At this time, the inner ball 313 presses against the circular tube workpiece 415, so that the circular tube workpiece 415 can be rotated later.

[0046] In this embodiment, the linkage structure 4 includes a cavity 401, which is opened inside the lower fixed plate 3, and a linkage shaft 402 is rotated inside the lower fixed plate 3. The surface of the linkage shaft 402 is located inside the cavity 401 and a driving bevel gear 403 is fixed thereto. A bidirectional bevel gear 404 is rotated between the top and bottom surfaces of the cavity 401 through a rotating pin. A pin 405 is rotated inside the inner and outer guide grooves 301, and a driven bevel gear 406 is fixed thereto at the bottom end of the pin 405 and located inside the cavity 401. A rotating sleeve 407 is rotated on the surface of the pin 405 and located inside the guide groove 301, and a slide rod 408 slides on the convex block on the surface of the rotating sleeve 407. A screw sleeve 409 is fixed to the top of the shaft 405, and the screw sleeve 409 is internally threaded; a screw rod 410, a nut 411 is fixed to the top of the screw rod 410, an outer grinding roller 412 is sleeved on the outer side of the outer screw rod 410, and an inner grinding roller 413 is sleeved on the outer side of the inner screw rod 410. A screw groove 414 is provided at the top of the outer grinding roller 412 and the inner grinding roller 413, and a round tube workpiece 415 is provided between the outer grinding roller 412 and the inner grinding roller 413. A No. 3 electric rod 416 is installed inside the upper screw rod 410, and a convex rod 417 is fixed to the bottom end of the No. 3 electric rod 416. The end surface of the lower screw rod 410 is provided with a convex groove adapted to the convex rod 417;

[0047] For details, see the attached manual. Figure 6 , Instruction Manual Figure 7 And the instruction manual Figure 10As shown, the outer grinding roller 412 or the inner grinding roller 413 is first placed on the screw sleeve 409, and then the screw 410 is inserted into the outer grinding roller 412 or the inner grinding roller 413, and then the nut 411 is rotated to thread the bottom end of the screw 410 into the screw sleeve 409, and the nut 411 is threaded into the screw groove 414, so that the outer grinding roller 412 or the inner grinding roller 413 can be installed and fixed, so that the surface of the circular tube workpiece 415 can be ground from both the inside and the outside at the same time through the outer grinding roller 412 or the inner grinding roller 413.

[0048] In this embodiment, the driving bevel gear 403 meshes with the bevel gear on the lower side of the bidirectional bevel gear 404. The bidirectional bevel gear 404 is located between the inner and outer sets of driven bevel gears 406 and meshes with the two sets of driven bevel gears 406. The guide block 302 is located on the outer side of the pin shaft 405. The pin shaft 405 passes through the open slide groove 316 and is slidably connected thereto. The slide rod 408 is fixedly connected to the guide block 302. The second electric rod 315 is fixedly connected to the linkage shaft 402 through a bracket and is located between the upper and lower sets of inner grinding rollers 413.

[0049] Specifically, the linkage shaft 402 can drive the bidirectional bevel gear 404 to rotate by driving the bevel gear 403, and the bidirectional bevel gear 404 can drive the screw sleeve 409 to rotate through the pin shaft 405 by engaging with the driven bevel gear 406 on both sides thereof, and then the screw sleeve 409 can drive the outer grinding roller 412 or the inner grinding roller 413 fixed thereon to rotate.

[0050] In this embodiment, the upper bracket 5 includes a longitudinal bracket 501, a transverse bracket 502 is fixed on the longitudinal bracket 501, a forward and reverse motor 503 is installed on the transverse bracket 502, an adjusting bevel gear 504 is fixed to the output end of the forward and reverse motor 503, a telescopic spline shaft 505 is rotated on the transverse bracket 502 through the bracket, and transverse bevel gears 506 are fixed to both ends of the telescopic spline shaft 505, a transverse forward and reverse motor 507 is installed in the left and right directions of the longitudinal bracket 501, a longitudinal forward and reverse motor 508 is installed in the left and front and rear directions of the longitudinal bracket 501, a transverse screw rod 509 is fixed between the output ends of the transverse forward and reverse motor 507, a longitudinal screw rod 510 is fixed between the output ends of the longitudinal forward and reverse motor 508, and screws on the front and rear two sets of transverse screw rods 509 are fixed. The thread is connected to the transverse slide 511, and the left and right sets of longitudinal screw rods 510 are threadedly connected to the longitudinal slide 512. A through slot 513 is provided on the transverse slide 511 and the longitudinal slide 512. A transverse moving seat 514 is fixedly installed inside the through slot 513 on one side of the transverse slide 511, and a longitudinal moving seat 515 is fixedly installed inside the through slot 513 on one side of the longitudinal slide 512. Longitudinal bevel teeth 516 are rotatable on the transverse moving seat 514 and the longitudinal moving seat 515. An upper universal joint 517 is installed at the bottom end of the longitudinal bevel teeth 516. An upper fixed plate 518 is rotatably installed at the bottom end of the upper universal joint 517. An outer grinding roller 412 and an inner grinding roller 413 are provided on the upper and lower fixed plates 518, and the outer grinding rollers 412 and the inner grinding rollers 413 on the upper and lower sides are symmetrically arranged.

[0051] For details, see the attached manual. Figure 3 And the instruction manual Figure 4 As shown, the horizontal forward and reverse motor 507 can drive the horizontal slide 511 to move left and right through the horizontal screw rod 509, and the vertical forward and reverse motor 508 can drive the vertical slide 512 to move forward and backward through the vertical screw rod 510. Therefore, the horizontal slide 511 and the vertical slide 512 can drive the upper fixed plate 518 to move forward and backward or left and right through the upper universal joint 517. Therefore, the position of the upper fixed plate 518 can be adjusted. When the upper fixed plate 518 is located directly above the lower fixed plate 3, the distance between the outer grinding roller 412 and the inner grinding roller 413 on the upper and lower sides is the shortest, and a shorter circular tube workpiece 415 can be installed. Similarly, when the upper fixed plate 518 is located obliquely above the lower fixed plate 3, the distance between the outer grinding roller 412 and the inner grinding roller 413 on the upper and lower sides becomes longer, and a longer circular tube workpiece 415 can be installed.

[0052] In this embodiment, the upper fixed plate 518 is symmetrically arranged with the lower fixed plate 3. The upper fixed plate 518 is provided with a No. 1 electric rod 203, and the top end of the No. 1 electric rod 203 is rotatably connected to the transverse movable seat 514 and the longitudinal movable seat 515 via the outer universal joint 202. The bottom end of the No. 1 electric rod 203 is rotatably connected to the upper fixed plate 518 via the outer universal joint 202. The inner end of the telescopic spline shaft 505 is rotatably connected to the transverse bracket 502 via a bracket, and the outer end of the telescopic spline shaft 505 is rotatably connected to the transverse movable seat 514 and the longitudinal movable seat 515 via a bracket. The inner and outer ends of the telescopic spline shaft 505 are rotatably connected to the adjusting bevel gear 504 and the longitudinal bevel gear 516 respectively via the transverse bevel gear 506.

[0053] Specifically, the transverse slide 511 and the longitudinal slide 512 slide perpendicularly to each other. During this process, the telescopic spline shaft 505 extends or contracts, so that the telescopic spline shaft 505 can always engage with the adjustment bevel teeth 504 and the longitudinal bevel teeth 516 through the transverse bevel teeth 506 at both ends of the telescopic spline shaft 505, and the lower fixed plate 3 can be swung forward and backward or left and right through the No. 1 electric rod 203 below, and the upper fixed plate 518 can be swung forward and backward or left and right through the No. 1 electric rod 203 above, and the axis of the lower fixed plate 3 is parallel to the axis of the upper fixed plate 518.

[0054] In this embodiment, a through slot is formed on the side of the horizontal slide 511, and the vertical slide 512 is slidably connected to the horizontal slide 511 inside the through slot. The left and right sets of horizontal slides 511 and the front and rear sets of vertical slides 512 are vertically slidably connected to each other.

[0055] Specifically, when the horizontal slide 511 slides left and right, it will not interfere with the vertical slide 512 sliding in the front and back directions. Therefore, the horizontal slide 511 can drive the horizontal movable seat 514 to move left and right, and the vertical slide 512 can drive the vertical movable seat 515 to move front and back.

[0056] The working principle and usage process of the present invention are as follows: the horizontal forward and reverse motor 507 can drive the horizontal slide 511 to move left and right through the horizontal screw rod 509, and the vertical forward and reverse motor 508 can drive the vertical slide 512 to move forward and backward through the vertical screw rod 510. Therefore, the horizontal slide 511 and the vertical slide 512 can drive the upper fixed plate 518 to move forward and backward or left and right through the upper universal joint 517. During this process, the telescopic spline shaft 505 can be extended or contracted, so that the telescopic spline shaft 505 can always engage with the adjustment bevel gear 504 and the vertical bevel gear 516 through the horizontal bevel gear 506 at both ends, and the lower fixed plate 3 can be swung forward and backward or left and right through the No. 1 electric rod 203 below, and the upper fixed plate 518 can be swung forward and backward or left and right through the No. 1 electric rod 203 above. The outer grinding roller 412 and the inner grinding roller 413 on each side of the lower fixed plate 3 and the upper fixed plate 518 are parallel to each other. When the length of the circular tube workpiece 415 is short, the outer grinding roller 412 and the inner grinding roller 413 are vertically upward. When the length of the circular tube workpiece 415 is long, the outer grinding roller 412 and the inner grinding roller 413 can be placed at an angle. Therefore, by adjusting the inclination angles of the upper and lower outer grinding rollers 412 and the inner grinding rollers 413 according to the length of the circular tube workpiece 415, the upper and lower outer grinding rollers 412 and the inner grinding rollers 413 can be made close to or far away from each other, so that the circular tube workpiece 415 can be placed on the outer grinding roller according to the length of the circular tube workpiece 415. 412 and the inner grinding roller 413 so as to clamp and fix it later. When the inclination angles of the outer grinding roller 412 and the inner grinding roller 413 are adjusted and the circular tube workpiece 415 is placed between the outer grinding roller 412 and the inner grinding roller 413, the outer telescopic fastening ring composed of the outer fastening ring 305 and the outer linkage ring 306 is driven to contract by rotating the screw rod 303 through the guide block 302, and the inner telescopic fastening ring composed of the inner fastening ring 307 and the inner linkage ring 308 is expanded by meshing the linkage gear plate 309, the outer gear rod 310 and the inner gear rod 311. Therefore, when the outer telescopic fastening ring contracts, the outer ball 312 is driven to press against the outer surface of the circular tube workpiece 415, and when the inner telescopic fastening ring expands, the inner ball 313 is driven The inner surface of the circular tube workpiece 415 is pressed against the outer ball 312 and the inner ball 313 on one side of the lower fixed plate 3 and the upper fixed plate 518, respectively, so that the top and bottom ends of the circular tube workpiece 415 can be supported and rotated. At the same time, starting the No. 2 electric rod 315 can make its outer end press against the inner wall of the circular tube workpiece 415. The circular tube workpiece 415 can be fixed to the linkage shafts 402 on the upper and lower sides through the upper and lower groups of No. 2 electric rods 315. At this time, the circular tube workpiece 415 is located between the outer grinding roller 412 and the inner grinding roller 413. Then starting the No. 3 electric rod 416 can drive the convex rod 417 to move outward and insert it into the convex groove of the lower screw 410, so that the outer grinding roller 412 and the inner grinding roller 413 on the upper and lower sides can be linked together.Then, the forward and reverse motor 503 is started and the bevel gear 504 is adjusted to mesh with the transverse bevel gear 506 on the telescopic spline shaft 505, which can drive the longitudinal bevel gear 516 to rotate, and then the longitudinal bevel gear 516 can drive the linkage shaft 402 on the upper fixed plate 518 side to rotate through the upper universal joint 517. When the bevel gear 504 is rotated, the driving gear ring 207 can be driven to rotate through the driving shaft 206, and then the driving gear ring 207 can be meshed with the driven gear plate 205, so that the rotating shaft 204 can drive the linkage shaft 402 on the lower fixed plate 3 side to rotate through the lower universal joint 208. Therefore, the linkage shaft 402 is connected to the second electric rod 31 on its surface. 5 can drive the circular tube workpiece 415 to rotate. During the rotation of the circular tube workpiece 415, the linkage shaft 402 meshes with the bidirectional bevel gear 404, causing the bidirectional bevel gear 404 to drive the driven bevel gear 406 to rotate. The driven bevel gear 406 can then drive the screw sleeve 409, the screw rod 410, and the nut 411 to drive the outer grinding roller 412 and the inner grinding roller 413 to rotate at different speeds than the circular tube workpiece 415. Therefore, when the outer grinding roller 412 and the inner grinding roller 413 rotate at different speeds than the circular tube workpiece 415, different positions on the inner and outer surfaces of the circular tube workpiece 415 can be ground simultaneously during the rotation process.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A machine tool grinding device, comprising a processing table (1), characterized in that: A base (2) is fixed to the middle of the surface of the processing table (1), a driven adjustment structure for fixing the pipe is provided on the base (2), and a lower fixed plate (3) is provided on the driven adjustment structure, the lower fixed plate (3) includes a guide groove (301), the guide groove (301) is opened on both sides of the inner and outer ends of the end surface of the lower fixed plate (3) along the circumferential direction of the lower fixed plate (3), a guide block (302) slides in the guide groove (301), a screw rod (303) is threadedly connected to the outer surface of the lower fixed plate (3), a sliding shaft (304) slides on the outer surface of the lower fixed plate (3), and the screw rod (303) is rotatably connected to the guide block (302) through a bearing ring, the sliding shaft (304) is fixedly connected to the guide block (302), and the outer guide block (302) is fixedly connected to the guide block (302). 02) is fixed with an outer fastening ring (305), an outer linkage ring (306) is slid between the outer fastening rings (305), an inner fastening ring (307) is fixed on the inner guide block (302), an inner linkage ring (308) is slid between the inner fastening rings (307), an end surface of the lower fixed plate (3) is located between the outer fastening ring (305) and the inner fastening ring (307) and a linkage gear disk (309) is rotated, an outer gear rod (310) is fixed on the lower side of the inner surface of the outer fastening ring (305), an inner gear rod (311) is fixed on the lower side of the outer surface of the inner fastening ring (307), and the outer gear rod (310) and the inner gear rod (311) are located on both sides of the linkage gear disk (309) and mesh with the linkage gear disk (309). The outer ball (312) is rotated on the upper side of the inner surface of the outer fastening ring (305), and the inner ball (313) is rotated on the upper side of the outer surface of the inner fastening ring (307). A fixing ring (314) is provided between the outer fastening ring (305) and the inner fastening ring (307), and a second electric rod (315) is fixedly mounted on the fixing ring (314). The end surfaces of the outer fastening ring (305) and the inner fastening ring (307) are provided with open sliding grooves (316). The lower fixed plate (3) is provided with a linkage structure (4) for driving the pipe fitting, and the linkage structure (4) includes a cavity (401). The cavity (401) is provided inside the lower fixed plate (3), and a linkage shaft ( 402), a driving bevel gear (403) is fixed on the surface of the linkage shaft (402) and located inside the cavity (401), a bidirectional bevel gear (404) is rotated between the top and bottom surfaces of the cavity (401) through a rotating pin, a pin shaft (405) is rotated inside the guide groove (301) on both sides, a driven bevel gear (406) is fixed at the bottom end of the pin shaft (405) and located inside the cavity (401), a rotating sleeve (407) is rotated on the surface of the pin shaft (405) and located inside the guide groove (301), a sliding rod (408) slides on the convex block on the surface of the rotating sleeve (407), a screw sleeve (409) is fixed on the top end of the pin shaft (405), and the screw sleeve (409) is internally threaded;A screw rod (410) is provided, wherein a nut (411) is fixed to the top end of the screw rod (410), an outer grinding roller (412) is sleeved on the outer side of the screw rod (410), and an inner grinding roller (413) is sleeved on the outer side of the screw rod (410), a screw groove (414) is provided at the top end of the outer grinding roller (412) and the inner grinding roller (413), a round tube workpiece (415) is provided between the outer grinding roller (412) and the inner grinding roller (413), a third electric rod (416) is installed inside the upper screw rod (410), a protruding rod (417) is fixed to the bottom end of the third electric rod (416), and a screw rod (416) is provided on the lower screw rod (410). The end surface of the processing table (1) is provided with a convex groove adapted to the convex rod (417), an upper bracket (5) is fixed on the outer side of the surface of the processing table (1), and an active adjustment structure for adjusting the length of the pipe is provided on the upper bracket (5), the upper bracket (5) includes a longitudinal bracket (501), a transverse bracket (502) is fixed on the longitudinal bracket (501), a forward and reverse motor (503) is installed on the transverse bracket (502), an adjusting bevel gear (504) is fixed at the output end of the forward and reverse motor (503), a telescopic spline shaft (505) is rotated by the bracket on the transverse bracket (502), and transverse bevel gears (504) are fixed at both ends of the telescopic spline shaft (505). 6), a horizontal forward and reverse motor (507) is installed in the left and right directions of the longitudinal bracket (501), a vertical forward and reverse motor (508) is installed in the left front and rear directions of the longitudinal bracket (501), a horizontal screw rod (509) is fixed between the output ends of the horizontal forward and reverse motor (507), a vertical screw rod (510) is fixed between the output ends of the vertical forward and reverse motor (508), a horizontal slide (511) is threadedly connected to the front and rear two groups of the horizontal screw rods (509), and a vertical slide (512) is threadedly connected to the left and right two groups of the vertical screw rods (510), a through slot (513) is provided on the horizontal slide (511) and the vertical slide (512), and the horizontal slide A transverse moving seat (514) is fixedly installed inside the through slot (513) on one side of the frame (511), and a longitudinal moving seat (515) is fixedly installed inside the through slot (513) on one side of the longitudinal slide (512). A longitudinal bevel gear (516) is rotatably mounted on the transverse moving seat (514) and the longitudinal moving seat (515). An upper universal joint (517) is mounted on the bottom end of the longitudinal bevel gear (516). An upper fixed plate (518) is rotatably mounted on the bottom end of the upper universal joint (517). An outer grinding roller (412) and an inner grinding roller (413) are arranged on the upper and lower sides of the outer grinding roller (412) and the inner grinding roller (413) are symmetrically arranged. Four table legs for supporting the processing table (1) are fixed to the bottom surface thereof, the base (2) is located in the middle of the surface of the processing table (1), and two groups of upper brackets (5) are provided and are located on the left and right sides of the base (2).

2. A machine tool grinding device according to claim 1, characterized in that: The base (2) comprises four sets of chassis (201), the four sets of chassis (201) being fixed on the surface of the base (2) in a rectangular shape, an outer universal joint (202) being installed on the outer side of the upper end surface of the chassis (201), a No. 1 electric rod (203) being installed on the outer universal joint (202), a rotating shaft (204) being rotated in the middle of the upper end surface of the chassis (201), a driven gear disc (205) being fixed at the bottom end of the rotating shaft (204), a driving shaft (206) being rotated in the middle of the base (2), a driving gear ring (207) being fixed at the bottom end of the driving shaft (206), and a lower universal joint (208) being installed at the top end of the driving gear ring (207).

3. The machine tool grinding device according to claim 2, characterized in that: The driven gear disc (205) and the driving gear ring (207) are located below the processing table (1), the driven gear disc (205) is located inside the driving gear ring (207), and the driving gear ring (207) is engaged with the driven gear disc (205). Four groups of the No. 1 electric rod (203) are provided along the circumferential direction of the chassis (201), and an outer universal joint (202) is installed at the top end of the No. 1 electric rod (203).

4. The machine tool grinding device according to claim 2, characterized in that: The lower fixed plate (3) is located above the base (2), and the two ends of the first electric rod (203) are rotatably connected to the base (2) and the lower fixed plate (3) respectively through external universal joints (202).

5. The machine tool grinding device according to claim 2, characterized in that: The outer fastening ring (305) slides radially along the lower fixed plate (3) through the guide groove (301) and the guide block (302) on one side thereof, and the inner fastening ring (307) slides radially along the lower fixed plate (3) through the guide groove (301) and the guide block (302) on one side thereof. The outer fastening ring (305) and the outer linkage ring (306) are staggered and arranged in four groups, and the outer fastening ring (305) and the outer linkage ring (306) form an outer telescopic fastening ring. The inner fastening ring (307) and the inner linkage ring (308) are staggered and arranged in four groups, and the inner fastening ring (307) and the inner linkage ring (308) form an inner telescopic fastening ring.

6. The machine tool grinding device according to claim 5, characterized in that: The driving bevel gear (403) meshes with the bevel gear on the lower side of the bidirectional bevel gear (404); the bidirectional bevel gear (404) is located between the inner and outer groups of driven bevel gears (406) and meshes with the two groups of driven bevel gears (406); the guide block (302) is located outside the pin shaft (405); the pin shaft (405) passes through the open slide groove (316) and is slidably connected thereto; the slide rod (408) is fixedly connected to the guide block (302); the second electric rod (315) is fixedly connected to the linkage shaft (402) through a bracket, and the second electric rod (315) is located between the upper and lower groups of inner grinding rollers (413).

7. The machine tool grinding device according to claim 6, characterized in that: The upper fixed plate (518) and the lower fixed plate (3) are symmetrically arranged. A No. 1 electric rod (203) is arranged on the upper fixed plate (518), and the top end of the No. 1 electric rod (203) is rotatably connected to the transverse movable seat (514) and the longitudinal movable seat (515) through an external universal joint (202). The bottom end of the No. 1 electric rod (203) is rotatably connected to the upper fixed plate (518) through an external universal joint (202). The inner end of the telescopic spline shaft (505) is rotatably connected to the transverse bracket (502) through a bracket. The outer end of the telescopic spline shaft (505) is rotatably connected to the transverse movable seat (514) and the longitudinal movable seat (515) through a bracket. The inner and outer ends of the telescopic spline shaft (505) are rotatably connected to the adjusting bevel gear (504) and the longitudinal bevel gear (516) through transverse bevel gears (506).

8. The machine tool grinding device according to claim 7, characterized in that: A through slot is provided on the side of the transverse slide (511), and the longitudinal slide (512) is slidably connected to the transverse slide (511) inside the through slot. The left and right groups of transverse slides (511) and the front and rear groups of longitudinal slides (512) are vertically slidably connected to each other.

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