Numerical control surface grinding machine for shaft machining

Abstract

The invention relates to the technical field of shaft machining, in particular to a numerical control surface grinding machine for shaft machining, which comprises a grinding machine body, a worktable movably connected to the grinding machine body, two rotating discs mounted at two ends of the top of the worktable and used for supporting and rotating a slender shaft, and a grinding wheel, a supporting mechanism used for supporting a grinding wheel is installed on the grinding machine body, the supporting mechanism supports the grinding wheel, and the grinding wheel is used for grinding a slender shaft. According to the numerical control surface grinding machine for shaft machining, the adjusting supporting mechanism not only can support a slender shaft, but also can adjust the grinding position of the slender shaft according to the diameter change of the grinding position of the slender shaft in the process that the slender shaft rotates and moves and is matched with a grinding wheel for grinding; and a plurality of second balls at the position of the adjusting supporting mechanism can adjust the clamping force of the second balls on the slender shaft in time, so that the slender shaft is stably supported, and meanwhile, the phenomenon of vibration deformation of the slender shaft in the grinding process is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of shaft processing, in particular to a CNC surface grinder for shaft processing. Background Art

[0002] A surface grinder is a type of grinder that mainly uses a grinding wheel to rotate and grind the workpiece to achieve the required flatness. The surface grinder can process various types of shafts during the grinding process, including but not limited to ordinary shafts, slender shafts, crankshafts, etc. These shafts are usually used in various mechanical equipment, such as automobiles, aerospace, precision instruments and other fields.

[0003] When the existing slender shaft is ground on a CNC surface grinder, the slender shaft has a large length-to-diameter ratio and poor rigidity. During the cutting process, although the staff uses auxiliary support tools to support the shaft body of the slender shaft, the contact force between the grinding wheel and the slender shaft can easily cause the slender shaft to vibrate. In particular, during the grinding process, the diameter of the slender shaft at the grinding position is gradually reduced, and the existing auxiliary support tools cannot adjust their support contact force in time according to the diameter change of the slender shaft, which causes the vibration force of the slender shaft to increase during the grinding rotation, and then causes the slender shaft to bend and deform during the grinding process, making it difficult to ensure the dimensional accuracy of the slender shaft. Summary of the invention

[0004] The object of the present invention is to provide a CNC surface grinder for shaft processing to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC surface grinder for shaft processing, comprising a grinder body, a worktable movably connected to the grinder body, two rotating disks and a grinding wheel installed at both ends of the top of the worktable and used to support and rotate the slender shaft, the grinder body is installed with a supporting mechanism for supporting the grinding wheel, and the supporting mechanism supports the grinding wheel, the grinding wheel is used to grind the slender shaft, a supporting guide rail is installed on the side of the worktable away from the grinding wheel, and a plurality of moving seats are slidably connected to the supporting guide rail, a locking mechanism is installed on the moving seat, and the moving seat is fixed to the supporting guide rail through the locking mechanism;

[0006] An adjusting support mechanism is installed on the movable seat, and the adjusting support mechanism is used for auxiliary support of the slender shaft, and the adjusting support mechanism is adjusted according to the change of the grinding diameter of the slender shaft.

[0007] Among them, an internal threaded hole is provided on the side of the movable seat away from the grinding wheel, the locking mechanism is connected to the internal threaded hole, the locking mechanism includes a locking bolt, and one end of the locking bolt is threadedly connected to the internal threaded hole, and one end of the locking bolt abuts against the guide rail.

[0008] Wherein, the adjusting support mechanism comprises a support seat, a moving mechanism, a support frame, a lifting mechanism and a support detection mechanism, the support seat is slidably connected to the upper surface of the moving seat, the moving mechanism is located on the moving seat, and the moving mechanism is used to drive the support seat;

[0009] The support frame is located above the support seat, and the lifting mechanism is installed on the support seat. The lifting mechanism is used to adjust the vertical height of the support frame relative to the support seat, and the adjusting support mechanism is provided to absorb the function of adjusting the support of the slender shaft;

[0010] The support detection mechanism is installed on one side of the support frame, and is used to perform support detection on the slender shaft.

[0011] Among them, the moving mechanism includes a fixed block, a moving screw and a handle. There are two fixed blocks, and the two fixed blocks are respectively fixedly mounted at both ends of the upper surface of the moving seat. The moving screw is rotatably connected between the two fixed blocks, and one end of the moving screw is located on the outside of one of the fixed blocks and is fixedly connected to the handle. The moving screw is threadedly connected to the two fixed blocks, and the bottom of the support seat is threadedly sleeved on the outside of the moving screw. Through the moving mechanism, the position of the support seat relative to the moving seat can be adjusted.

[0012] Among them, the lifting mechanism includes a sliding rod, a lifting screw rod, a first connecting ear and a second connecting ear. The sliding rod is fixedly installed on the support seat, and the lifting screw rod is rotatably connected to the support seat. The first connecting ear and the second connecting ear are respectively fixedly installed on both ends of the support frame. The first connecting ear is slidably sleeved on the outside of the sliding rod, and the second connecting ear is threadedly sleeved on the outside of the lifting screw rod. The outside of the bottom of the lifting screw rod is provided with anti-slip grooves. Through the lifting mechanism, the function of supporting and connecting the support frame is realized.

[0013] Wherein, the support detection mechanism comprises an electric push rod, a support sleeve, a detection member and a positioning member, the electric push rod is fixedly mounted on the support frame, and the output end of the electric push rod passes through the support frame and is fixedly connected to the support sleeve, the output end of the electric push rod is slidably connected to the support frame, a receiving groove is provided on the side of the support sleeve facing the slender shaft, the detection member is located at the receiving groove, and the detection member is used to detect the outer surface position of the slender shaft;

[0014] There are two positioning members, which are respectively located outside the supporting sleeve and connected to the supporting frame. Through the supporting detection mechanism, the slender shaft can be supported on the grinding machine body and detected at the same time.

[0015] Among them, the detection part includes a pressure sensor, a rubber pad, a receiving sleeve and a first ball. The pressure sensor is installed inside the receiving groove, and one side of the receiving sleeve is connected to the pressure sensor through the rubber pad. The receiving sleeve passes through one side of the receiving groove, and the first ball passes through the receiving sleeve, and the first ball is rotatably connected to the receiving sleeve. Through the detection part, the function of detecting the change in the outer diameter of the slender shaft is realized.

[0016] Among them, the positioning member includes a connecting member, a pulling plate, a limiting sleeve and a clamping member, the connecting member is installed between the pulling plate and the supporting sleeve, the pulling plate is L-shaped, and the two ends of the pulling plate are respectively a supporting end and a moving end, the limiting sleeve is slidably sleeved on the outside of the moving end, and the limiting sleeve is fixedly installed on the supporting frame, the clamping member is located at the supporting end, and the positioning member is provided to realize the function of connecting the supporting frame.

[0017] Among them, the connecting member includes a connecting seat, a connecting support rod and a connecting shaft. The connecting seat is fixedly installed on the outside of the supporting sleeve. Two connecting support rods are provided. One end of the two connecting support rods is hinged to the connecting seat through a pin shaft, and the other end of the connecting support rod is rotatably connected to the outside of the pulling plate through the connecting shaft. Through the provided connecting member, the function of connecting the supporting sleeve and the pulling plate to each other is realized.

[0018] Wherein, the clamping member includes a limit frame, a positioning support rod, a swing shaft, a swing block, a contact block, a connecting rod, a connecting spring, a connecting sleeve and a second ball. The limit frame is fixedly installed at the supporting end of the pulling plate. Two positioning support rods are provided. One end of the two positioning support rods is hinged to the limit frame through a pin shaft. The swing shaft is fixedly connected to one end of the two positioning support rods.

[0019] The swing block is rotatably sleeved on the outside of the swing shaft, and both ends of the swing block are round ends. The contact block is slidably connected at the round end. One end of the connecting rod is fixedly connected to the contact block, and the other end of the connecting rod passes through the pulling plate and is fixedly connected to the connecting sleeve. The second ball is rotatably connected to the connecting sleeve, and the second ball contacts the outer surface of the slender shaft.

[0020] The connecting spring is sleeved on the outside of the connecting rod, and the two ends of the connecting spring are located between the contact block and the pulling plate. Through the provided clamping piece, the slender shaft is clamped and positioned.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. When the present invention is in use, a support rail is provided on the workbench, and a plurality of movable seats are slidably connected to the support rail, and an adjusting support mechanism is correspondingly installed on the movable seat. Therefore, when the grinder body grinds the slender shaft, the adjusting support mechanism can not only support the slender shaft, but also, in the process of the slender shaft rotating and moving and cooperating with the grinding wheel for grinding, the plurality of second balls at the adjusting support mechanism can timely adjust the clamping force of the slender shaft according to the diameter change of the grinding position of the slender shaft, thereby achieving stable support for the slender shaft and preventing the slender shaft from vibrating and deforming during the grinding process.

[0023] 2. When the present invention is in use, the adjustment support mechanism can not only support the slender shaft during grinding, but also reduce the vibration force generated during the grinding process of the slender shaft, further ensure the stable grinding of the slender shaft, and at the same time ensure the dimensional accuracy of the grinding of the slender shaft. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 It is a schematic diagram of the structure of the workbench of the present invention;

[0026] Figure 3 It is a schematic diagram of the side view structure of the slender shaft of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the mobile seat of the present invention;

[0028] Figure 5 This is a schematic diagram of the support base structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the lifting screw structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the support detection mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the support sleeve structure of the present invention;

[0032] Fig. 9 This is an exploded schematic diagram of the internal parts of the support sleeve of the present invention;

[0033] Fig.10 It is a schematic diagram of the structure of the limiting frame of the present invention;

[0034] Fig.11 It is a schematic diagram of the cross-sectional structure of the support frame of the present invention.

[0035] In the figure: 1. grinder body; 2. workbench; 21. support rail; 22. moving seat; 3. slender shaft; 4. rotating disk; 5. grinding wheel; 6. locking mechanism; 61. locking bolt; 7. adjusting support mechanism; 71. support seat; 72. moving mechanism; 721. fixing block; 722. moving screw rod; 723. handle; 73. support frame; 74. lifting mechanism; 741. slide rod; 742. lifting screw rod; 743. first connecting ear; 744. second connecting ear; 8. supporting detection mechanism; 81. electric push rod; 82. supporting sleeve; 83. detection member; 831. pressure sensor; 83 2. Rubber pad; 833. Accommodating sleeve; 834. First ball; 84. Positioning member; 841. Connecting member; 8411. Connecting seat; 8412. Connecting support rod; 8413. Connecting shaft; 842. Pulling plate; 843. Limiting sleeve; 9. Clamping member; 91. Limiting frame; 92. Positioning support rod; 93. Swinging shaft; 94. Swinging block; 95. Contact block; 96. Connecting rod; 97. Connecting spring; 98. Connecting sleeve; 99. Second ball; 10. Connecting screw; 101. Rotating motor; 102. First rotating gear; 103. Second rotating gear; 104. Internally threaded sleeve. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] See also Figures 1 to 3 , a CNC surface grinder for shaft processing, comprising a grinder body 1, a workbench 2 movably connected to the grinder body 1, two rotating disks 4 and a grinding wheel 5 installed at both ends of the top of the workbench 2 and used to support and rotate the slender shaft 3, a supporting mechanism for supporting the grinding wheel 5 is installed on the grinder body 1, and the supporting mechanism supports the grinding wheel 5, the grinding wheel 5 is used to grind the slender shaft 3, and the supporting mechanism is an existing mechanism, used to support the grinding wheel 5, and at the same time, the position of the grinding wheel 5 relative to the workbench 2 can be adjusted, so that the grinding wheel 5 can rotate and grind the slender shaft 3, for which no further elaboration is made, a supporting guide rail 21 is installed on the workbench 2 and on one side away from the grinding wheel 5, and a plurality of moving seats 22 are slidably connected to the supporting guide rail 21, a locking mechanism 6 is installed on the moving seat 22, and the moving seat 22 is fixed to the supporting guide rail 21 through the locking mechanism 6;

[0039] See also Figures 5 and 6An internal threaded hole is provided on the movable seat 22 and on a side away from the grinding wheel 5, and a locking mechanism 6 is connected to the internal threaded hole. The locking mechanism 6 includes a locking bolt 61, and one end of the locking bolt 61 is threadedly connected to the internal threaded hole, and one end of the locking bolt 61 abuts against the guide rail;

[0040] Specific implementation process: When the movable seat 22 is moved relative to the supporting guide rail 21, the movable seat 22 can be moved to the position on the workbench 2 where the slender shaft 3 is required to be supported by loosening the locking bolt 61. After the position is adjusted, the locking bolt 61 can be tightened to fix the movable seat 22 relative to the supporting guide rail 21 to prevent the movable seat 22 from moving.

[0041] See also Figures 4 to 10 , an adjusting support mechanism 7 is installed on the moving seat 22, the adjusting support mechanism 7 is used to provide auxiliary support for the slender shaft 3, and the adjusting support mechanism 7 is adjusted according to the change of the grinding diameter of the slender shaft 3, the adjusting support mechanism 7 includes a support seat 71, a moving mechanism 72, a support frame 73, a lifting mechanism 74 and a support detection mechanism 8, the support seat 71 is slidably connected to the upper surface of the moving seat 22, the moving mechanism 72 is located on the moving seat 22, and the moving mechanism 72 is used to drive the support seat 71;

[0042] The support frame 73 is located above the support seat 71, and the lifting mechanism 74 is installed on the support seat 71, and the lifting mechanism 74 is used to adjust the vertical height of the support frame 73 relative to the support seat 71;

[0043] The support detection mechanism 8 is installed on one side of the support frame 73 , and the support detection mechanism 8 is used to perform support detection on the slender shaft 3 .

[0044] Please refer to Figures 5 and 6 The moving mechanism 72 includes a fixed block 721, a moving screw rod 722 and a handle 723. There are two fixed blocks 721, and the two fixed blocks 721 are respectively fixedly mounted on the two ends of the upper surface of the moving seat 22. The moving screw rod 722 is rotatably connected between the two fixed blocks 721, and one end of the moving screw rod 722 located on the outside of one of the fixed blocks 721 is fixedly connected to the handle 723. The moving screw rod 722 is threadedly connected to the two fixed blocks 721, and the bottom of the support seat 71 is threadedly sleeved on the outside of the moving screw rod 722.

[0045] The lifting mechanism 74 includes a sliding rod 741, a lifting screw rod 742, a first connecting ear 743 and a second connecting ear 744. The sliding rod 741 is fixedly mounted on the support seat 71, and the lifting screw rod 742 is rotatably connected to the support seat 71. The first connecting ear 743 and the second connecting ear 744 are respectively fixedly mounted on both ends of the support frame 73. The first connecting ear 743 is slidably sleeved on the outside of the sliding rod 741, and the second connecting ear 744 is threadedly sleeved on the outside of the lifting screw rod 742. The outside of the bottom of the lifting screw rod 742 is provided with anti-slip grooves.

[0046] When the lifting lever 742 is in the state of being lifted up, the lifting lever 744 is in the state of being lifted up, and the lifting lever 744 is in the state of being lifted up, so that the lifting lever 744 can be ... can be lifted up, so that the lifting lever 744 can be lifted up, and the lifting lever 744 can be lifted up, so that the lifting lever 744 can be lifted up, and the lifting lever 744 can be lifted up, so that the lifting lever 744 can be lifted up, and the lifting lever 744 can be lifted up, so that the lifting lever 744 can be lifted up, and the lifting lever 744 can be lifted up, so that the lifting lever 744 can be lifted up, and the lifting lever 744 can be lifted up, so that the lifting lever 744 can be lifted up, and the lifting lever 7

[0047] See also Figures 7 to 10 The support detection mechanism 8 includes an electric push rod 81, a support sleeve 82, a detection member 83 and a positioning member 84. The electric push rod 81 is fixedly mounted on the support frame 73, and the output end of the electric push rod 81 passes through the support frame 73 and is fixedly connected to the support sleeve 82. The output end of the electric push rod 81 is slidably connected to the support frame 73. A receiving groove is provided on the side of the support sleeve 82 facing the slender shaft 3. The detection member 83 is located at the receiving groove, and the detection member 83 is used to detect the outer surface position of the slender shaft 3.

[0048] The detection member 83 includes a pressure sensor 831, a rubber pad 832, a receiving sleeve 833 and a first ball 834. The pressure sensor 831 is installed inside the receiving groove, and one side of the receiving sleeve 833 is connected to the pressure sensor 831 through the rubber pad 832. The receiving sleeve 833 passes through one side of the receiving groove, and the first ball 834 passes through the receiving sleeve 833, and the first ball 834 is rotatably connected to the receiving sleeve 833.

[0049] In this example, an outer edge is provided at one end of the accommodating sleeve 833 located outside the accommodating groove, so as to limit the accommodating sleeve 833. Meanwhile, the rubber pad 832 can be deformed, and the rubber pad 832 is used to connect the accommodating sleeve 833 and the pressure sensor 831.

[0050] Specific implementation process: when the slender shaft 3 is ground on the surface grinder, the first ball 834 contacts the outer side of the slender shaft 3, and at this time, the pressure sensor 831 detects that its pressure value is the set value, and the rubber pad 832 is relatively in a compressed state. When the grinding wheel 5 grinds the slender shaft 3, the diameter of the slender shaft 3 is reduced. Under the connection action of the rubber pad 832, the first ball 834 moves along the direction of the slender shaft 3 through the accommodating sleeve 833. At this time, the pressure sensor 831 detects that the pressure value it is subjected to becomes smaller. At this time, the electric push rod 81 runs, and the output end of the electric push rod 81 drives the supporting sleeve 82 to move along the direction of the slender shaft 3 until the first ball 834 contacts the outer side of the slender shaft 3 and can rotate relative to the slender shaft 3. The pressure sensor 831 detects that the pressure value is the set value, and the electric push rod 81 stops running. When the diameter of the slender shaft 3 continues to decrease, this embodiment can continuously detect the slender shaft 3 and provide auxiliary support.

[0051] See also Figures 7 and 8 There are two positioning members 84 , and the two positioning members 84 are respectively located outside the supporting sleeve 82 , and the two positioning members 84 are connected to the supporting frame 73 .

[0052] The positioning member 84 includes a connecting member 841, a pulling plate 842, a limiting sleeve 843 and a clamping member 9. The connecting member 841 is installed between the pulling plate 842 and the supporting sleeve 82. The pulling plate 842 is L-shaped, and the two ends of the pulling plate 842 are respectively a supporting end and a moving end. The limiting sleeve 843 is slidably sleeved on the outside of the moving end, and the limiting sleeve 843 is fixedly installed on the supporting frame 73. The clamping member 9 is located at the supporting end.

[0053] The connecting member 841 includes a connecting seat 8411, a connecting support rod 8412 and a connecting shaft 8413. The connecting seat 8411 is fixedly installed on the outside of the supporting sleeve 82. Two connecting support rods 8412 are provided. One end of the two connecting support rods 8412 is hinged to the connecting seat 8411 through a pin shaft, and the other end of the connecting support rod 8412 is rotatably connected to the outside of the pulling plate 842 through the connecting shaft 8413.

[0054] The clamping member 9 includes a limit frame 91, a positioning support rod 92, a swing shaft 93, a swing block 94, a contact block 95, a connecting rod 96, a connecting spring 97, a connecting sleeve 98 and a second ball 99. The limit frame 91 is fixedly installed at the supporting end of the pulling plate 842. Two positioning support rods 92 are provided. In this example, the positioning support rods 92 are L-shaped. One end of the two positioning support rods 92 is hinged to the limit frame 91 through a pin shaft. The swing shaft 93 is fixedly connected to one end of the two positioning support rods 92.

[0055] The swing block 94 is rotatably sleeved on the outside of the swing shaft 93, and both ends of the swing block 94 are round ends, the contact block 95 is slidably connected at the round end, one end of the connecting rod 96 is fixedly connected to the contact block 95, and the other end of the connecting rod 96 passes through the pulling plate 842 and is fixedly connected to the connecting sleeve 98, the second ball 99 is rotatably connected to the connecting sleeve 98, and the second ball 99 contacts the outer surface of the slender shaft 3,

[0056] The connecting spring 97 is sleeved on the outside of the connecting rod 96 , and both ends of the connecting spring 97 are located between the contact block 95 and the pulling plate 842 .

[0057] Specific implementation process: when the electric push rod 81 runs and drives the support sleeve 82 to move along the direction of the slender axis 3, the support sleeve 82 synchronously drives the connecting rod 8412 to move through the two connecting seats 8411 on its outer side, and because the other end of the connecting rod 8412 is limited by the pulling plate 842, the connecting rod 8412 further drives the pulling rod to move, and then the two pulling plates 842 move in opposite directions, that is, the supporting end of the pulling plate 842 slides relative to the limiting sleeve 843;

[0058] While the two pulling plates 842 move along the direction of the slender shaft 3, the second balls 99 at the connecting rod 96 on the pulling plate 842 move relative to the direction of the slender shaft 3 until the four second balls 99 clamp and support the slender shaft 3, and the slender shaft 3 can rotate relative to the four second balls 99, so that the four second balls 99 play a role in supporting and limiting the slender shaft 3 with a certain force;

[0059] At the same time, when the slender shaft 3 vibrates due to the grinding of the grinding wheel 5 and the rotation of the slender shaft 3 relative to the grinding wheel 5, the multiple second balls 99 in contact with the slender shaft 3, due to the connecting sleeve 98 on the outer side of the second ball 99 under the connection action of the connecting rod 96, the connecting spring 97 and the contact block 95, the vibration of the slender shaft 3 causes the second ball 99 and the connecting rod 96 to move a certain amplitude relative to the moving end of the elongated plate, thereby causing the connecting spring 97 to undergo elastic deformation. In this process, the vibration force of the slender shaft 3 is buffered and eliminated, thereby reducing the vibration force of the slender shaft 3 and ensuring the stability of the slender shaft 3.

[0060] In this embodiment, due to the limiting effect of the positioning support rod 92, the swing shaft 93 and the swing block 94, the plurality of second balls 99 independently support the slender shaft 3, further ensuring the stability of the grinding of the slender shaft 3.

[0061] Embodiment 2

[0062] See also Fig.11 , Embodiment 2 is another implementation method for connecting the support sleeve 82 in Embodiment 1, specifically: In this embodiment 2, the support sleeve 82 is connected with a connecting screw 10, and the connecting screw 10 passes through the support frame 73, the support frame 73 is rotatably connected with an internal threaded sleeve 104, a rotating motor 101 is installed on the support frame 73, the output end of the rotating motor 101 is fixedly connected with a first rotating gear 102, the outer side of the first rotating gear 102 is meshedly connected with a second rotating gear 103, and the second rotating gear 103 is fixedly sleeved on the outer side of the internal threaded sleeve 104;

[0063] Then, when the pressure sensor 831 detects a change in its pressure value, the rotating motor 101 runs at this time, so that the first rotating gear 102 drives the second rotating gear 103 to rotate. When the second rotating gear 103 rotates, the internal threaded sleeve 104 rotates relative to the connecting screw 10. Because the connecting screw 10 is limited by the support sleeve 82, the support sleeve 82 is further driven to move along the direction of the slender axis 3 or away from the slender axis 3 until the model value of the pressure sensor 831 reaches the set value, and the rotating motor 101 stops running.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC surface grinder for shaft processing, comprising a grinder body (1), a worktable (2) movably connected to the grinder body (1), two rotating disks (4) and a grinding wheel (5) mounted at both ends of the top of the worktable (2) and used to support and rotate a slender shaft (3), wherein a supporting mechanism for supporting the grinding wheel (5) is mounted on the grinder body (1), and the supporting mechanism supports the grinding wheel (5), and the grinding wheel (5) is used to grind the slender shaft (3), characterized in that: A support rail (21) is installed on the side of the workbench (2) away from the grinding wheel (5), and a plurality of movable seats (22) are slidably connected to the support rail (21), a locking mechanism (6) is installed on the movable seats (22), and the movable seats (22) are fixed to the support rail (21) via the locking mechanism (6); An adjusting support mechanism (7) is installed on the movable seat (22). The adjusting support mechanism (7) is used to provide auxiliary support for the slender shaft (3), and the adjusting support mechanism (7) is adjusted according to the change in the grinding diameter of the slender shaft (3).

2. The CNC surface grinder for shaft processing according to claim 1, characterized in that: An internal threaded hole is provided on the movable seat (22) at a side away from the grinding wheel (5), the locking mechanism (6) is connected to the internal threaded hole, the locking mechanism (6) comprises a locking bolt (61), one end of the locking bolt (61) is threadedly connected to the internal threaded hole, and one end of the locking bolt (61) abuts against the guide rail.

3. The CNC surface grinder for shaft processing according to claim 1, characterized in that: The adjusting support mechanism (7) comprises a support seat (71), a moving mechanism (72), a support frame (73), a lifting mechanism (74) and a support detection mechanism (8); the support seat (71) is slidably connected to the upper surface of the moving seat (22); the moving mechanism (72) is located on the moving seat (22); and the moving mechanism (72) is used to drive the support seat (71); The support frame (73) is located above the support seat (71), and the lifting mechanism (74) is installed on the support seat (71), and the lifting mechanism (74) is used to adjust the vertical height of the support frame (73) relative to the support seat (71); The support detection mechanism (8) is installed on one side of the support frame (73), and the support detection mechanism (8) is used to perform support detection on the slender shaft (3).

4. The CNC surface grinder for shaft processing according to claim 3, characterized in that: The moving mechanism (72) comprises a fixed block (721), a moving screw rod (722) and a handle (723). Two fixed blocks (721) are provided. The two fixed blocks (721) are respectively fixedly mounted on two ends of the upper surface of the moving seat (22). The moving screw rod (722) is rotatably connected between the two fixed blocks (721), and one end of the moving screw rod (722) located on the outside of one of the fixed blocks (721) is fixedly connected to the handle (723). The moving screw rod (722) is threadedly connected to the two fixed blocks (721), and the bottom of the support seat (71) is threadedly sleeved on the outside of the moving screw rod (722).

5. The CNC surface grinder for shaft processing according to claim 3, characterized in that: The lifting mechanism (74) comprises a sliding rod (741), a lifting screw rod (742), a first connecting ear (743) and a second connecting ear (744); the sliding rod (741) is fixedly mounted on the support seat (71), and the lifting screw rod (742) is rotatably connected to the support seat (71); the first connecting ear (743) and the second connecting ear (744) are respectively fixedly mounted on two ends of the support frame (73); the first connecting ear (743) is slidably sleeved on the outside of the sliding rod (741), and the second connecting ear (744) is threadedly sleeved on the outside of the lifting screw rod (742); and the outside of the bottom of the lifting screw rod (742) is provided with anti-slip grooves.

6. The CNC surface grinder for shaft processing according to claim 3, characterized in that: The support detection mechanism (8) comprises an electric push rod (81), a support sleeve (82), a detection member (83) and a positioning member (84); the electric push rod (81) is fixedly mounted on the support frame (73); the output end of the electric push rod (81) passes through the support frame (73) and is fixedly connected to the support sleeve (82); the output end of the electric push rod (81) is slidably connected to the support frame (73); a receiving groove is provided on a side of the support sleeve (82) facing the slender shaft (3); the detection member (83) is located at the receiving groove; and the detection member (83) is used to detect the position of the outer surface of the slender shaft (3); Two positioning members (84) are provided, and the two positioning members (84) are respectively located outside the supporting sleeve (82), and the two positioning members (84) are connected to the supporting frame (73).

7. The CNC surface grinder for shaft processing according to claim 6, characterized in that: The detection member (83) comprises a pressure sensor (831), a rubber pad (832), a receiving sleeve (833) and a first ball (834); the pressure sensor (831) is installed inside the receiving groove, and one side of the receiving sleeve (833) is connected to the pressure sensor (831) via the rubber pad (832); the receiving sleeve (833) passes through one side of the receiving groove; the first ball (834) passes through the receiving sleeve (833), and the first ball (834) is rotatably connected to the receiving sleeve (833).

8. The CNC surface grinder for shaft processing according to claim 6, characterized in that: The positioning member (84) comprises a connecting member (841), a pulling plate (842), a limiting sleeve (843) and a clamping member (9); the connecting member (841) is installed between the pulling plate (842) and the supporting sleeve (82); the pulling plate (842) is L-shaped, and the two ends of the pulling plate (842) are respectively a supporting end and a moving end; the limiting sleeve (843) is slidably sleeved on the outer side of the moving end, and the limiting sleeve (843) is fixedly installed on the supporting frame (73); and the clamping member (9) is located at the supporting end.

9. The CNC surface grinder for shaft processing according to claim 7, characterized in that: The connecting member (841) comprises a connecting seat (8411), a connecting support rod (8412) and a connecting shaft (8413); the connecting seat (8411) is fixedly mounted on the outside of the supporting sleeve (82); two connecting support rods (8412) are provided; one end of each of the two connecting support rods (8412) is hinged to the connecting seat (8411) via a pin, and the other end of the connecting support rod (8412) is rotatably connected to the outside of the pulling plate (842) via the connecting shaft (8413).

10. The CNC surface grinder for shaft processing according to claim 8, characterized in that: The clamping member (9) comprises a limit frame (91), a positioning support rod (92), a swing shaft (93), a swing block (94), a contact block (95), a connecting rod (96), a connecting spring (97), a connecting sleeve (98) and a second ball (99); the limit frame (91) is fixedly installed at the supporting end of the pulling plate (842); two positioning support rods (92) are provided; one end of the two positioning support rods (92) is hinged to the limit frame (91) through a pin shaft; and the swing shaft (93) is fixedly connected to one end of the two positioning support rods (92); The swing block (94) is rotatably sleeved on the outside of the swing shaft (93), and both ends of the swing block (94) are circular ends. The contact block (95) is slidably connected to the circular end. One end of the connecting rod (96) is fixedly connected to the contact block (95), and the other end of the connecting rod (96) passes through the pulling plate (842) and is fixedly connected to the connecting sleeve (98). The second ball (99) is rotatably connected to the connecting sleeve (98), and the second ball (99) contacts the outer surface of the slender shaft (3). The connecting spring (97) is sleeved on the outside of the connecting rod (96), and the two ends of the connecting spring (97) are located between the contact block (95) and the pulling plate (842).

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