Cylindrical workpiece clamping device based on milling and boring machine

Abstract

The invention relates to the technical field of machining, in particular to a cylindrical workpiece clamping device based on a milling and boring machine, which comprises a milling and boring machine workbench, a clamping and supporting mechanism for supporting two ends of a cylindrical workpiece is arranged at the top of the milling and boring machine workbench, and the clamping and supporting mechanism comprises a V-shaped seat and clamping assemblies symmetrically arranged on the V-shaped seat. The clamping assembly is obliquely arranged on the V-shaped seat so as to limit the axial displacement of the cylindrical workpiece; an elastic supporting mechanism is further arranged on the top of the milling and boring machine workbench and comprises a lower supporting base, an upper supporting base and an elastic assembly, and the elastic assembly is arranged between the lower supporting base and the upper supporting base. The top of the milling and boring machine workbench is further provided with a workpiece pressing mechanism for limiting axial rotation of the cylindrical workpiece. According to the milling and boring machine workbench, cylindrical workpieces of different sizes can be clamped and fixed, milling and boring machining of the cylindrical workpieces of different sizes can be completed, the cylindrical workpieces can be conveniently and rapidly aligned, and the milling and boring machine workbench can be suitable for milling and boring machine workbenches of various specifications.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a cylindrical workpiece clamping device based on a milling and boring machine. Background Art

[0002] A boring and milling machine is a mechanical processing equipment that combines the functions of a boring machine and a milling machine in one, making the processing more efficient and accurate, greatly improving product quality and labor efficiency. The working principle of a boring and milling machine mainly depends on its design structure and functional characteristics. A boring and milling machine combines the functions of boring and milling, and usually has two types: vertical and horizontal. The tool axis of a vertical boring and milling machine is parallel to the processing plane, while the tool axis of a horizontal boring and milling machine is perpendicular to the processing plane. The purpose is to enable the boring and milling machine to complete multiple processing tasks on the same machine tool. The application areas of boring and milling machines include engineering machinery and equipment processing, mold processing, power generation equipment processing, vehicle and ship engine processing, and wind power component processing.

[0003] During the machining process of a cylindrical workpiece by a milling and boring machine, a workpiece clamping device of the milling and boring machine is required to clamp and fix the cylindrical workpiece on the worktable of the milling and boring machine to limit the movement of the cylindrical workpiece so as to facilitate the machining of the cylindrical workpiece by the milling and boring machine. When the workpiece clamping device of the prior art milling and boring machine clamps the cylindrical workpiece, the cylindrical workpiece cannot be effectively aligned, resulting in low machining accuracy of the cylindrical workpiece. Moreover, the workpiece clamping device cannot be applied to the milling and boring machining of cylindrical workpieces of different sizes, and also has the defect of not being compatible with different milling and boring machine worktables. Summary of the invention

[0004] In order to solve the problems that the existing workpiece clamping device of a milling and boring machine is inconvenient to align the cylindrical workpiece, cannot be applied to the milling and boring processing of cylindrical workpieces of different sizes, and cannot be universally used for different milling and boring machine worktables, the present invention provides a cylindrical workpiece clamping device based on a milling and boring machine. The device can clamp and fix cylindrical workpieces of different sizes, can complete the milling and boring processing of cylindrical workpieces of different sizes, is convenient for aligning the cylindrical workpiece, and can also be applied to milling and boring machine worktables of various specifications.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a cylindrical workpiece clamping device based on a milling and boring machine, comprising a milling and boring machine worktable, the top of which is provided with a clamping support mechanism for supporting both ends of the cylindrical workpiece, the clamping support mechanism comprising a V-shaped seat and a clamping assembly symmetrically arranged on the V-shaped seat, the clamping assembly being obliquely arranged on the V-shaped seat to limit the axial displacement of the cylindrical workpiece. The V-shaped seat supports the cylindrical workpiece, and the clamping assemblies of the clamping support mechanism at both ends of the cylindrical workpiece axially clamp the cylindrical workpiece to achieve the effect of limiting the axial displacement of the cylindrical workpiece.

[0006] The top of the milling and boring machine table is also provided with an elastic support mechanism, which includes a lower support seat, an upper support seat and an elastic component, and the elastic component is arranged between the lower support seat and the upper support seat. Through the cooperation of the elastic component with the lower support seat and the upper support seat, the upper support seat can elastically support the cylindrical workpiece, and the elastic support mechanism can prevent the middle part of the cylindrical workpiece from falling and deforming when the length of the cylindrical workpiece is too long.

[0007] The top of the milling and boring machine table is also provided with a workpiece clamping mechanism for limiting the circumferential rotation of the cylindrical workpiece, and the workpiece clamping mechanism includes an arc-shaped pressing plate and a tie rod member vertically arranged on the arc-shaped pressing plate. The arc-shaped pressing plate and the tie rod member cooperate to achieve the arc-shaped pressing plate to clamp the cylindrical workpiece, thereby preventing the cylindrical workpiece from circumferentially rotating during processing.

[0008] Furthermore, the V-shaped seat is symmetrically provided with a first strip-shaped hole; the clamping assembly includes a slide rail, a limit screw and an L-shaped slider, the slide rail is located on the outside of the V-shaped seat, the limit screw is connected to the middle position of the inside of the slide rail, one end of the limit screw passes through the first strip-shaped hole and is connected to a fastening nut. Through the cooperation of the limit screw and the first strip-shaped hole, the slide rail can be moved forward and backward through the limit screw to adjust the position of the slide rail, and the axial clamping of cylindrical workpieces of different lengths can be achieved.

[0009] Furthermore, a guide rod is symmetrically arranged on the inner side of the slide rail, one end of the guide rod passes through the first strip hole and extends to the outside of the first strip hole, and the guide rod guides the movement of the slide rail driven by the limiting screw.

[0010] Furthermore, the slide rail is in an "L"-shaped structure, the vertical portion of the slide rail is provided with a second strip hole, the horizontal portion of the slide rail is provided with an L-shaped slide groove, and the L-shaped slider is slidably arranged in the L-shaped slide groove; the vertical portion of the L-shaped slider is provided with an adjusting bolt, one end of the adjusting bolt passes through the second strip hole and is connected to the L-shaped slider. The L-shaped slider plays an axial clamping role on the cylindrical workpiece, and the L-shaped slider can slide in the L-shaped slide groove. The position of the L-shaped slider in the L-shaped slide groove can be adjusted by the adjusting bolt to achieve axial clamping of cylindrical workpieces of different diameters.

[0011] Furthermore, a clamping assembly is provided on both sides of the V-shaped seat, and the clamping assembly includes a clamping plate and a fixing piece, one end of the clamping plate is located at the top of the bottom plate of the V-shaped seat, and a plurality of third strip holes are provided on the clamping plate, and each of the third strip holes is provided with the fixing piece. The clamping plate clamps and fixes the V-shaped seat through the fixing piece, thereby achieving the effect of fixing the clamping support mechanism on the workbench of the milling and boring machine.

[0012] Furthermore, the fixing member includes a clamping block and an adjusting screw, wherein the clamping block is located at the bottom of the milling and boring machine table, the lower end of the adjusting screw is connected to the clamping block, and the upper end of the adjusting screw passes through the milling and boring machine table and the third strip hole in sequence, and is connected with a locking nut, which is located at the top of the clamping plate. The clamping plate is fixed by the cooperation of the adjusting screw, the clamping block and the locking nut.

[0013] Furthermore, the elastic component includes a guide screw, a limit nut and a spring. The upper and lower ends of the guide screw pass through the bottom plate of the upper support seat and the top plate of the lower support seat respectively, and the upper and lower ends of the guide screw are provided with the limit nuts; the spring is sleeved on the guide screw and is located between the upper support seat and the lower support seat. By changing the position of the limit nuts at both ends of the guide screw, the length of the spring can be controlled, thereby adjusting the supporting force of the upper support seat on the cylindrical workpiece.

[0014] Furthermore, a protective tube is provided on the top of the lower support seat and is sleeved on the outside of the spring; an arc-shaped groove is provided on the top of the upper support seat, and a first rubber pad is provided at the arc-shaped groove. The protective tube protects the spring, and the arc-shaped groove facilitates the upper support seat to support the cylindrical workpiece.

[0015] Furthermore, the pull rods are slidably arranged at both ends of the arc-shaped pressure plate, and the pull rods are double-headed screws, the lower ends of which are connected to T-shaped nuts clamped on the bottom of the milling and boring machine table, and the upper ends of which pass through the arc-shaped pressure plate and are connected to fixing nuts. The arc-shaped pressure plate can press and fix the cylindrical workpiece by cooperating with the double-headed screw, the T-shaped nut and the fixing nut, so as to press the cylindrical workpiece and prevent the cylindrical workpiece from rotating in the circumferential direction.

[0016] Furthermore, a gasket is arranged between the fixing nut and the arc-shaped pressure plate; a second rubber pad is arranged at the arc-shaped surface at the bottom of the arc-shaped pressure plate, and the arc-shaped pressure plate combined with the second rubber pad limits the circumferential rotation of the cylindrical workpiece, and the second rubber pad also protects the cylindrical workpiece.

[0017] Through the above technical solution, the beneficial effects of the present invention are: 1. The present invention has a simple structure, convenient operation, and strong applicability. It can clamp and fix cylindrical workpieces of different lengths and diameters, thereby completing milling and boring processing of cylindrical workpieces of different sizes. When the sizes of the cylindrical workpieces to be processed are not much different, the clamping operation of the cylindrical workpiece can be completed without moving the position of the device. At the same time, it is also convenient to align the cylindrical workpiece, thereby improving the processing accuracy of the cylindrical workpiece. It is also easy to disassemble and assemble, and can be applied to milling and boring machine tables of different sizes.

[0018] 2. The present invention supports the cylindrical workpiece through the V-shaped seats of the two clamping support mechanisms, and the clamping assemblies of the clamping support mechanisms at both ends of the cylindrical workpiece play an axial clamping role on the cylindrical workpiece, thereby achieving the effect of limiting the axial displacement of the cylindrical workpiece; through the cooperation of the limit screw and the first strip hole, the limit screw can drive the slide rail to move back and forth to adjust the position of the slide rail, thereby achieving the effect of axial clamping of cylindrical workpieces of different lengths, and at the same time achieving the effect of completing the cylindrical workpiece clamping operation without moving the position of the device when the sizes of the cylindrical workpieces are not much different.

[0019] 3. The adjusting bolt in the present invention plays the role of fixing or loosening the L-shaped slider, and the movement of the adjusting bolt in the second strip hole can drive the L-shaped slider to slide in the L-shaped slide groove, thereby achieving the purpose of adjusting the position of the L-shaped slider; thereby achieving the effect of axial clamping of cylindrical workpieces of different diameters.

[0020] 4. The clamping assembly in the present invention has the function of clamping and fixing the V-seat. The clamping plate and the fixing piece cooperate to fix the V-seat, so as to facilitate the disassembly or installation of the V-seat and adjust the position of the V-seat, thereby achieving the effect of being suitable for clamping cylindrical workpieces of different lengths and being suitable for milling and boring machine worktables of different sizes.

[0021] 5. The elastic support mechanism of the present invention realizes the elastic support of the upper support seat to the cylindrical workpiece through the cooperation of the elastic component with the lower support seat and the upper support seat; the length of the spring can be controlled by changing the position of the limit nuts at both ends of the guide screw of the elastic component, thereby realizing the adjustment of the supporting force of the upper support seat on the cylindrical workpiece, thereby preventing the middle part of the cylindrical workpiece from bowing or falling and causing deformation due to excessive or insufficient supporting force.

[0022] 6. The workpiece clamping mechanism of the present invention achieves the effect of the arc pressure plate clamping and fixing the cylindrical workpiece through the cooperation of the arc pressure plate and the double-headed screw, prevents the circumferential rotation of the cylindrical workpiece during processing, and improves the processing accuracy of the cylindrical workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a cylindrical workpiece clamping device based on a milling and boring machine of the present invention. Figure 1 ; Figure 2 The present invention is a schematic diagram of a cylindrical workpiece clamping device based on a milling and boring machine. Figure 2 ; Figure 3 It is a structural schematic diagram of the clamping support mechanism of the present invention; Figure 4 It is a structural schematic diagram of the clamping assembly of the present invention; Figure 5It is a structural schematic diagram of the elastic support mechanism of the present invention; Figure 6 It is a structural schematic diagram of the workpiece clamping mechanism of the present invention; Figure 7 yes Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0024] The numbers in the accompanying drawings are: 1 is a milling and boring machine table, 2 is a V-shaped seat, 201 is a first strip hole, 3 is a clamping assembly, 301 is a slide rail, 302 is a second strip hole, 303 is an L-shaped slide groove, 304 is an L-shaped slider, 305 is an adjusting bolt, 306 is a limit screw, 307 is a fastening nut, 308 is a guide rod, 4 is a clamping assembly, 401 is a clamping plate, 402 is a third strip hole, 403 is a clamping block, 404 is Adjusting screw, 405 is locking nut, 5 is elastic supporting mechanism, 501 is lower supporting seat, 502 is upper supporting seat, 503 is first rubber pad, 504 is guide screw, 505 is limiting nut, 506 is spring, 507 is protective tube, 6 is workpiece clamping mechanism, 601 is arc pressure plate, 602 is second rubber pad, 603 is double-headed screw, 604 is T-nut, 605 is fixing nut, 606 is gasket. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "horizontal", "vertical" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] like Figure 1 to Figure 7As shown, a cylindrical workpiece clamping device based on a milling and boring machine includes a milling and boring machine worktable 1, and a clamping support mechanism for supporting the two ends of the cylindrical workpiece is arranged on the top of the milling and boring machine worktable 1. The clamping support mechanism includes a V-shaped seat 2 and a clamping assembly 3 symmetrically arranged on the V-shaped seat 2, and the clamping assembly 3 is tilted on the V-shaped seat 2 to limit the axial displacement of the cylindrical workpiece. In this embodiment, the number of the clamping support mechanisms is two. During the processing of the cylindrical workpiece, the two clamping support mechanisms are respectively located at the two ends of the cylindrical workpiece to achieve the purpose of supporting and clamping the cylindrical workpiece; wherein the number of the clamping assemblies 3 on the V-shaped seat 2 is two and is located on the outside of the V-shaped seat 2. The two clamping assemblies 3 on the V-shaped seat 2 are symmetrically installed to clamp the cylindrical workpiece, and the four-point clamping method is adopted to improve the effect of clamping and fixing the cylindrical workpiece, which can effectively limit the axial displacement of the cylindrical workpiece during processing.

[0027] In this embodiment, the milling and boring machine table 1 is composed of a plurality of plates in a "T"-shaped structure, a gap exists between two adjacent plates, and a concave groove is formed at the bottom between two adjacent plates.

[0028] The top of the milling and boring machine worktable 1 is also provided with an elastic support mechanism 5, which includes a lower support seat 501, an upper support seat 502 and an elastic component, and the elastic component is arranged between the lower support seat 501 and the upper support seat 502. In this embodiment, the number of the elastic support mechanism 5 is one, and the elastic support mechanism 5 is located at the middle position between the two clamping support mechanisms. Two fixing members are respectively installed at both ends of the upper support seat 502, and the upper support seat 502 is fixed to the top of the milling and boring machine worktable by the fixing members, the purpose of which is to facilitate the disassembly of the elastic support mechanism 5, and through the cooperation of the elastic component with the lower support seat 501 and the upper support seat 502, the upper support seat 502 can elastically support the middle part of the cylindrical workpiece, thereby preventing the middle part of the cylindrical workpiece from falling and deforming when the length of the cylindrical workpiece is too long.

[0029] A workpiece clamping mechanism 6 for limiting the circumferential rotation of the cylindrical workpiece is also arranged on the top of the milling and boring machine worktable 1. The workpiece clamping mechanism 6 includes an arc-shaped pressure plate 601 and a tie rod member vertically arranged on the arc-shaped pressure plate 601. In this embodiment, there are two workpiece clamping mechanisms 6, and the two workpiece clamping mechanisms 6 are respectively located on both sides of the elastic support mechanism 5, that is, the workpiece clamping mechanism 6 is located between the elastic support mechanism 5 and the clamping support mechanism; the arc-shaped pressure plate 601 is made of wood material, and there are two tie rod members on the arc-shaped pressure plate 601. A through hole for the tie rod member to pass through is opened on the arc-shaped pressure plate 601. The tie rod member is slidably connected to the arc-shaped pressure plate 601, and the lower end of the tie rod member is connected to the milling and boring machine worktable 1. The arc-shaped pressure plate 601 cooperates with the tie rod member to achieve the effect of clamping the cylindrical workpiece to limit the circumferential rotation of the cylindrical workpiece.

[0030] The V-shaped seat 2 is symmetrically provided with a first strip hole 201; the clamping assembly 3 includes a slide rail 301, a limit screw 306 and an L-shaped slider 304, the slide rail 301 is located on the outer side of the V-shaped seat 2, and the limit screw 306 is connected to the middle position of the inner side of the slide rail 301, one end of the limit screw 306 passes through the first strip hole 201 and is connected to a fastening nut 307. The first strip hole 201 is obliquely opened on the V-shaped seat 2, and the first strip hole 201 is parallel to the table surface of the V-shaped seat 2; wherein the slide rail 301 is obliquely installed on the outer side of the V-shaped seat 2 through a limiting screw 306, and the two ends of the limiting screw 306 are respectively threadedly connected to the slide rail 301 and the fastening nut 307, and the fastening nut 307 plays a fixing role on the limiting screw 306, and the position of the slide rail 301 can be adjusted according to the length of the cylindrical workpiece. When adjusting the front and rear position of the slide rail 301, the fastening nut 307 is rotated to release the restriction on the limiting screw 306, and the position of the slide rail 301 can be adjusted by the limiting screw 306. When the limiting screw 306 moves back and forth in the first strip hole 201, it simultaneously drives the slide rail 301 to move back and forth, thereby achieving the purpose of adjusting the position of the slide rail 301, and then achieving the effect of axial clamping of cylindrical workpieces of different lengths.

[0031] A guide rod 308 is symmetrically arranged on the inner side of the slide rail 301, and one end of the guide rod 308 passes through the first strip hole 201 and extends to the outside of the first strip hole 201. In this embodiment, there are two guide rods 308 on the inner side of the slide rail 301, and the guide rods 308 are fixedly connected to the slide rail 301; while the limit screw 306 drives the slide rail 301 to move forward and backward, it also drives the guide rod 308 to move forward and backward in the first strip hole 201, and the guide rod 308 guides the movement of the slide rail 301 driven by the limit screw 308 to move forward and backward.

[0032] The slide rail 301 has an "L"-shaped structure, a second strip hole 302 is provided in the vertical portion of the slide rail 301, an L-shaped slide groove 303 is provided in the horizontal portion of the slide rail 301, and the L-shaped slider 304 is slidably arranged in the L-shaped slide groove 303; an adjusting bolt 305 is provided in the vertical portion of the L-shaped slider 304, one end of the adjusting bolt 305 passes through the second strip hole 302 and is connected to the L-shaped slider 304. In this embodiment, the purpose of adopting the "L"-shaped structure of the L-shaped slide groove 303 and the L-shaped slider 304 is to avoid the rotation of the L-shaped slider 304 during the movement, and to limit the L-shaped slider 304; the number of adjusting bolts 305 on the vertical part of the L-shaped slider 304 is two, and the adjusting bolts 305 are threadedly connected to the L-shaped slider 304. The L-shaped slider 304 is provided with a threaded hole, and the movement of the L-shaped slider 304 is clamped and limited by adjusting the screw-in depth of the adjusting bolts 305; the adjusting bolts 305 fix the L-shaped slider 304, and can be adjusted according to the straightness of the cylindrical workpiece. The position of the L-shaped slider 304 is adjusted by adjusting the diameter to ensure that the L-shaped slider 304 can clamp the cylindrical workpiece; when adjusting the position of the L-shaped slider 304, the adjustment bolt 305 is rotated to release the restriction on the L-shaped slider 304, and the position of the L-shaped slider 304 can be adjusted by adjusting the bolt 305. While the adjustment bolt 305 moves up and down in the second strip hole 302, it simultaneously drives the L-shaped slider 304 to move up and down in the L-shaped slide groove 303, thereby achieving the purpose of adjusting the position of the L-shaped slider 304, and then achieving the effect of axially clamping cylindrical workpieces with different diameters.

[0033] The horizontal portion of the L-shaped slider 304 can be embedded in the first strip hole 201, that is, the width of the first strip hole 201 is greater than the thickness of the horizontal portion of the L-shaped slider 304. The purpose is to ensure that the L-shaped slider 304 can still clamp and fix the cylindrical workpiece when the length of the cylindrical workpiece is small and the end of the cylindrical workpiece does not extend out of the V-shaped seat 2.

[0034] A clamping assembly 4 is provided on both sides of the V-shaped seat 2. The clamping assembly 4 includes a clamping plate 401 and a fixing piece. One end of the clamping plate 401 is located at the top of the bottom plate of the V-shaped seat 2. A plurality of third strip holes 402 are provided on the clamping plate 401. The fixing piece is provided at each of the third strip holes 402. In this embodiment, there are two clamping assemblies 4 on both sides of the V-shaped seat 2, and there are four third strip holes 402 and fixing pieces on the clamping plate 401. The fixing piece fixes the clamping plate 401, so that the clamping plate 401 fixes the V-shaped seat 2.

[0035] The fixing member includes a clamping block 403 and an adjusting screw 404. The clamping block 403 is located at the bottom of the milling and boring machine worktable 1. The lower end of the adjusting screw 404 is connected to the clamping block 403. The upper end of the adjusting screw 404 passes through the milling and boring machine worktable 1 and the third strip hole 402 in sequence, and is connected with a locking nut 405. The locking nut 405 is located at the top of the clamping plate 401. In this embodiment, the clamping block 403 is clamped in a concave groove formed at the bottom between two adjacent plates of the milling and boring machine worktable 1. The adjusting screw 404 is threadedly connected with the locking nut 405. The clamping block 403 is fixedly installed at the bottom of the adjusting screw 404. The two are an integrated structure. The adjusting screw 404 can move back and forth in the third strip hole 402 to achieve clamping of the clamping plate 401 at any position. The clamping plate 401 is fixed by the locking nut 405. The locking nut 405 is located at the upper end of the adjusting screw 404 and is engaged with the clamping plate 401. The clamping plate 401 is in contact only during operation; when the position of the V-shaped seat 2 needs to be changed according to the length of the cylindrical workpiece or the V-shaped seat 2 needs to be installed on a milling and boring machine table 1 of other sizes, the locking nut 405 of each clamping assembly 4 fixing part is rotated to release the restriction on the clamping plate 401, and then the clamping plate 401 is removed, so that the position of the V-shaped seat 2 can be changed or it can be installed on a milling and boring machine table 1 of other sizes, thereby achieving the effect of clamping cylindrical workpieces of different lengths and being suitable for milling and boring machine tables 1 of different sizes.

[0036] The elastic component includes a guide screw 504, a limit nut 505 and a spring 506. The upper and lower ends of the guide screw 504 respectively pass through the bottom plate of the upper support seat 502 and the top plate of the lower support seat 501. The upper and lower ends of the guide screw 504 are both provided with the limit nuts 505; the spring 506 is sleeved on the guide screw 504 and is located between the upper support seat 502 and the lower support seat 501. In this embodiment, there are two elastic components. Circular holes for the guide screw 504 to pass through are opened on the bottom plate of the upper support seat 502 and the top plate of the lower support seat 501. The upper support seat 502 achieves elastic support of the cylindrical workpiece through the action of the spring 506. By rotating the position of the limit nuts 505 at the upper and lower ends of the guide screw 504, the compression degree of the spring 506 can be adjusted, and the length of the spring 506 can be changed, so that the elastic force of the spring 506 on the upper support seat 502 can be adjusted, thereby changing the size of the supporting force of the upper support seat 502 on the cylindrical workpiece, and preventing the middle part of the cylindrical workpiece from bending or falling and deforming due to excessive or insufficient supporting force.

[0037] The top of the lower support seat 501 is provided with a protective tube 507 sleeved on the outside of the spring 506; the top of the upper support seat 502 is provided with an arc groove, and the arc groove is provided with a first rubber pad 503. In this embodiment, the protective tube 507 is bolted to the top of the lower support seat 501, and the protective tube 507 plays a role in protecting and limiting the spring 506; the arc groove allows the upper support seat 501 to support the cylindrical workpiece, and the first rubber pad 503 plays a role in protecting the cylindrical workpiece to prevent deformation and scratches during the processing of the cylindrical workpiece.

[0038] The pull rods are slidably arranged at both ends of the arc pressure plate 601. The pull rods are double-headed screws 603. The lower ends of the double-headed screws 603 are connected to T-nuts 604 clamped on the bottom of the milling and boring machine table 1. The upper ends of the double-headed screws 603 pass through the arc pressure plate 601 and are connected to fixing nuts 605. In this embodiment, the two ends of the double-headed screw 603 are threadedly connected to the T-nut 604 and the fixing nut 605 respectively, and the T-nut 604 is stuck in the concave groove formed at the bottom between the two adjacent plates of the milling and boring machine table 1; when the cylindrical workpiece is pressed by the arc pressure plate 601, the arc pressure plate 601 is mounted on the two double-headed screws 603 through the through hole, and the arc pressure plate 601 is in contact with the top of the cylindrical workpiece, and then the fixing nuts 605 are respectively installed on the two double-headed screws, and the arc pressure plate 601 is fixed by the fixing nuts 605, so that the arc pressure plate 601 presses the cylindrical workpiece, thereby achieving the effect of limiting the circumferential rotation of the cylindrical workpiece.

[0039] A gasket 606 is provided between the fixing nut 605 and the arc-shaped pressing plate 601; a second rubber pad 602 is provided at the arc-shaped surface at the bottom of the arc-shaped pressing plate 601. In this embodiment, the gasket 606 is sleeved on the double-headed screw 603, and the effect of the fixing nut 605 on the arc-shaped pressing plate 601 can be improved through the action of the gasket 606; the arc-shaped pressing plate 601 can be used to press the cylindrical workpiece through the arc-shaped surface at the bottom of the arc-shaped pressing plate 601, and the second rubber pad 602 plays a protective role on the cylindrical workpiece to prevent deformation and scratches during the processing of the cylindrical workpiece. At the same time, the arc-shaped pressing plate 601 and the second rubber pad 602 are combined to improve the effect of pressing the cylindrical workpiece, thereby limiting the circumferential rotation of the cylindrical workpiece.

[0040] The working principle of the present invention is as follows: when a cylindrical workpiece needs to be installed on the milling and boring machine table 1 for milling and boring processing, first, two clamping support mechanisms are installed on the milling and boring machine table 1 according to the length of the cylindrical workpiece. After the two clamping support mechanisms are aligned, two clamping assemblies 4 are installed on both sides of the V-shaped seat 2 of the two clamping support mechanisms, and the V-shaped seat 2 is fixed by the clamping plate 401 and the fixing part of the clamping assembly 4, and then the elastic support mechanism 5 is placed between the two clamping support mechanisms and fixed in the center on the milling and boring machine table 1, and then the lower support seat 501 is fixed by four fixing parts.

[0041] Then the cylindrical workpiece can be placed on the V-shaped seats 2 of the two clamping support mechanisms, and the V-shaped seats 2 are used to support the two ends of the cylindrical workpiece; then the cylindrical workpiece is clamped by the arc-shaped pressure plate 601 of the workpiece clamping mechanism 6, that is, the arc-shaped pressure plate 601 is mounted on the two double-headed screws 603 through the through hole, and the arc-shaped pressure plate 601 is in contact with the top of the cylindrical workpiece, and then the fixing nuts 605 are respectively installed on the two double-headed screws, and the arc-shaped pressure plate 601 is fixed by the fixing nuts 605, so that the arc-shaped pressure plate 601 presses the cylindrical workpiece.

[0042] Then, the position of the slide rail 301 is adjusted according to the length of the cylindrical workpiece, and the fastening nut 307 is rotated to release the restriction on the limit screw 306, and the limit screw 306 is pushed or pulled to move in the first strip hole 201. The movement of the limit screw 306 synchronously drives the slide rail 301 to move forward and backward, thereby achieving the purpose of adjusting the position of the slide rail 301, and further achieving the effect of axial clamping of cylindrical workpieces of different lengths.

[0043] Then, the position of the L-shaped slider 304 is adjusted according to the diameter of the cylindrical workpiece, and the cylindrical workpiece is clamped using the L-shaped slider 304. The adjusting bolt 305 is rotated to release the restriction on the L-shaped slider 304. While the adjusting bolt 305 moves up and down in the second strip hole 302, it simultaneously drives the L-shaped slider 304 to move up and down in the L-shaped slide groove 303, thereby achieving the purpose of adjusting the position of the L-shaped slider 304, and further achieving the effect of axial clamping of cylindrical workpieces of different diameters.

[0044] The embodiments described above are only preferred embodiments of the invention and are not intended to limit the scope of implementation of the invention. Therefore, any equivalent changes or modifications made according to the technical solutions described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A cylindrical workpiece clamping device based on a milling and boring machine, comprising a milling and boring machine worktable (1), characterized in that: The top of the milling and boring machine worktable (1) is provided with a clamping support mechanism for supporting both ends of the cylindrical workpiece, the clamping support mechanism comprising a V-shaped seat (2) and a clamping assembly (3) symmetrically arranged on the V-shaped seat (2), the clamping assembly (3) being obliquely arranged on the V-shaped seat (2) to limit the axial displacement of the cylindrical workpiece; The top of the milling and boring machine worktable (1) is also provided with an elastic support mechanism (5), the elastic support mechanism (5) comprising a lower support seat (501), an upper support seat (502) and an elastic component, the elastic component being arranged between the lower support seat (501) and the upper support seat (502); A workpiece clamping mechanism (6) for limiting the circumferential rotation of the cylindrical workpiece is also arranged on the top of the milling and boring machine worktable (1). The workpiece clamping mechanism (6) comprises an arc-shaped pressing plate (601) and a pull rod member vertically arranged on the arc-shaped pressing plate (601).

2. A cylindrical workpiece clamping device based on a milling and boring machine according to claim 1, characterized in that: The V-shaped seat (2) is symmetrically provided with first strip-shaped holes (201); the clamping assembly (3) comprises a slide rail (301), a limit screw (306) and an L-shaped slider (304); the slide rail (301) is located on the outside of the V-shaped seat (2); the limit screw (306) is connected to the middle position of the inside of the slide rail (301); one end of the limit screw (306) passes through the first strip-shaped hole (201) and is connected to a fastening nut (307).

3. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 2, characterized in that: A guide rod (308) is also symmetrically arranged on the inner side of the slide rail (301), and one end of the guide rod (308) passes through the first strip-shaped hole (201) and extends to the outside of the first strip-shaped hole (201).

4. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 2, characterized in that: The slide rail (301) is in an "L"-shaped structure. The vertical portion of the slide rail (301) is provided with a second strip hole (302). The horizontal portion of the slide rail (301) is provided with an L-shaped slide groove (303). The L-shaped slider (304) is slidably arranged in the L-shaped slide groove (303). The vertical portion of the L-shaped slider (304) is provided with an adjusting bolt (305). One end of the adjusting bolt (305) passes through the second strip hole (302) and is connected to the L-shaped slider (304).

5. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 1, characterized in that: A clamping assembly (4) is provided on both sides of the V-shaped seat (2), the clamping assembly (4) comprising a clamping plate (401) and a fixing piece, one end of the clamping plate (401) is located at the top of the bottom plate of the V-shaped seat (2), a plurality of third strip holes (402) are provided on the clamping plate (401), and the fixing piece is provided at each of the third strip holes (402).

6. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 5, characterized in that: The fixing member comprises a clamping block (403) and an adjusting screw (404); the clamping block (403) is located at the bottom of the milling and boring machine worktable (1); the lower end of the adjusting screw (404) is connected to the clamping block (403); the upper end of the adjusting screw (404) passes through the milling and boring machine worktable (1) and the third strip hole (402) in sequence and is connected to a locking nut (405); the locking nut (405) is located at the top of the clamping plate (401).

7. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 1, characterized in that: The elastic component comprises a guide screw (504), a limit nut (505) and a spring (506); the upper and lower ends of the guide screw (504) respectively pass through the bottom plate of the upper support seat (502) and the top plate of the lower support seat (501); the upper and lower ends of the guide screw (504) are both provided with the limit nut (505); the spring (506) is sleeved on the guide screw (504) and is located between the upper support seat (502) and the lower support seat (501).

8. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 7, characterized in that: The top of the lower support seat (501) is provided with a protective tube (507) sleeved on the outside of the spring (506); the top of the upper support seat (502) is provided with an arc-shaped groove, and a first rubber pad (503) is provided at the arc-shaped groove.

9. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 1, characterized in that: The pull rods are slidably arranged at both ends of the arc-shaped pressure plate (601), and the pull rods are double-headed screws (603). The lower end of the double-headed screw (603) is connected to a T-shaped nut (604) clamped on the bottom of the milling and boring machine table (1), and the upper end of the double-headed screw (603) passes through the arc-shaped pressure plate (601) and is connected to a fixing nut (605).

10. The cylindrical workpiece clamping device based on a milling and boring machine according to claim 9, characterized in that: A gasket (606) is provided between the fixing nut (605) and the arc-shaped pressing plate (601); and a second rubber pad (602) is provided on the arc-shaped surface at the bottom of the arc-shaped pressing plate (601).

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