Numerical control cylindrical grinding equipment

Abstract

The invention relates to the technical field of machining equipment, in particular to numerical control cylindrical grinding equipment which comprises a regular rectangular table horizontally arranged in the X direction, a clamping device and a center device. The side face of the other end of the correcting rectangular table is connected with a side inclination adjusting display device, the center positioning connecting line between the tip device and the clamping device and the X direction of the central axis of the correcting rectangular table in the horizontal direction are coincident, and a radial grinding device which slides in the Y direction is arranged on one side between the tip device and the clamping device. By adjusting the side inclination adjusting display device, the correcting rectangular table and the clamping device can be driven to synchronously rotate by taking the rotating shaft of the concentric connecting piece as the center, so that the inclination of the central axis of the correcting rectangular table relative to the grinding surface of the grinding device is adjusted. The cylindrical grinding taper can be accurately adjusted, and the cylindrical grinding taper adjusting device has the advantages of being reasonable in structural design, high in grinding precision, high in adjustability and the like.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical processing equipment, and in particular to a CNC cylindrical grinding device for grinding the taper of a workpiece surface. Background Art

[0002] As modern manufacturing demands increasingly higher workpiece processing accuracy and production efficiency, precise grinding of workpiece surface taper has become a key link in ensuring the performance of mechanical equipment.

[0003] In existing technology, some cylindrical grinding machines and some CNC equipment have achieved a certain degree of automated grinding capabilities. These typically achieve taper processing through mechanical structures (such as headstock rotation mechanisms and worktable tilting mechanisms) or simple CNC programming, and rely on grinding tools such as abrasive belts and grinding wheels to complete surface shaping. However, these traditional technologies have significant limitations. For one thing, structural design is irrational, and taper grinding accuracy is constrained by manual intervention and mechanical structure errors, making it difficult to achieve precise control of taper. This is especially true for complex curved surfaces or high-precision fit requirements, where surface roughness and dimensional consistency cannot be guaranteed. Furthermore, existing settings suffer from low precision, requiring frequent machine stops for measurement and parameter adjustments, which reduces production efficiency and increases the risk of human error. Therefore, current cylindrical grinding equipment still faces problems with taper processing, such as large precision fluctuations and cumbersome operation. This makes it difficult to meet the stringent quality stability standards of high-end manufacturing and hinders further improvements in production efficiency.

[0004] Therefore, there is an urgent need for an external cylindrical grinding equipment with reasonable equipment structure design and high processing precision. Summary of the Invention

[0005] The purpose of this application is to provide a CNC external cylindrical grinding device to solve the problems of unreasonable structural design and low machining accuracy in the prior art.

[0006] The embodiments of the present application can be implemented through the following technical solutions: A CNC cylindrical grinding device for grinding the surface of a clamped workpiece, comprising: A regular rectangular table, a clamping device, a roll adjustment display device, and a centering device are arranged horizontally along the X direction. One end of the regular rectangular table and the clamping device are concentrically connected to the rotating shaft of the concentric connector. The side surface of the other end of the regular rectangular table is connected to the roll adjustment display device. The centering device and the clamping device are arranged opposite to each other along the X direction, and the center positioning line between the top device and the clamping device is co-reflected with the horizontal center axis X direction of the regular rectangular table. A radial grinding device is provided on one side between the top device and the clamping device. By adjusting the roll adjustment display device, the regular rectangular table and the clamping device are driven to rotate synchronously with the rotation axis of the concentric connector as the center, so as to adjust the inclination of the central axis of the regular rectangular table relative to the grinding surface of the grinding device.

[0007] Furthermore, the concentric connecting member is slidably connected to the first workbench on the frame along the X direction, and is driven by the first displacement driving device to move back and forth along the X direction on the first workbench, so that the workpiece clamped on the regular rectangular table has a reciprocating relative displacement motion along the X direction relative to the grinding device.

[0008] Furthermore, the concentric connecting member includes a first connecting plate, a rotating shaft, a rotating shaft sleeve, and a second connecting plate. The upper part of the first connecting plate is fixedly connected to the clamping device, and the lower part is fixedly connected to the regular rectangular table. A rotating shaft is also fixed below the first connecting plate. The lower part of the rotating shaft is rotatably connected to the rotating shaft sleeve. The rotating shaft sleeve is fixedly connected to the second connecting plate. The second connecting plate is slidingly connected to the first workbench along the X direction, and the second connecting plate is fixedly connected to the X-direction displacement output end of the first displacement drive device.

[0009] Furthermore, the clamping device includes a clamping drive motor, a transmission assembly, and a first unpowered spindle. The output end of the clamping drive motor is connected to the input end of the first unpowered spindle through the transmission assembly. The output end of the first unpowered spindle is connected to an elastic clamping part facing the top device. The clamped workpiece is rotatably connected between the clamping device and the top device, and the clamping space between the clamping device and the top device has an adjustment margin along the X direction.

[0010] Furthermore, the transmission assembly includes a driving wheel, a driven wheel, and a transmission belt. The output end of the clamping drive motor is connected to the driving wheel, the input end of the first unpowered spindle is connected to the driven wheel, and the output end of the first unpowered spindle is connected to the spindle. The diameter of the driving wheel is smaller than the diameter of the driven wheel. The driving wheel transmits power to the driven wheel through the transmission belt, and drives the spindle to rotate through the first unpowered spindle. The end of the spindle is connected with a expansion sleeve.

[0011] Furthermore, the top device includes a body, a top part, and an adjusting part. The bottom of the body is slidably connected to the long track of the regular rectangular table along the X direction, and the connection position is locked by a first locking screw. The two ends of the top of the body are respectively connected to the top part and the adjusting part. The top part is arranged toward the clamping device along the X direction, and the adjusting part is rotatably connected to the top part through a transmission component. The adjusting part is rotated to drive the top part to axially telescopic displacement through the transmission component.

[0012] Furthermore, a support device with a fixed position adjustable along the X direction is provided between the clamping device and the top device, and the support position of the support device is adjustable along the Z direction; The supporting device includes a first bracket, a second bracket, a lower supporting roller, a telescopic cylinder, a fixed pressure plate, a lower pressure roller, and a third locking screw. The back side of the second bracket is slidably connected to the first bracket along the Z direction, and the connection position of the two is positioned by the third locking screw. The middle part of the second bracket is rotatably connected to the two lower supporting rollers, and the top is slidably connected to the fixed pressure plate. The fixed pressure plate is rotatably connected to the lower pressure roller, and the lower pressure roller is arranged above the roller gap between the two lower supporting rollers. The telescopic cylinder is fixedly connected to one side of the second bracket, and the output end of the telescopic cylinder is connected to the fixed pressure plate. Under the action of the telescopic cylinder, the lower pressure roller is displaced relative to the roller gap between the two lower supporting rollers; The first bracket is connected to the long track of the regular rectangular table in a sliding manner along the X direction, and the connection position is locked by a second locking screw.

[0013] Furthermore, the grinding device is slidably connected to the second workbench along the Y direction, and is driven by the second displacement drive device to move back and forth in the Y direction. A grating ruler is also provided between the grinding device and the second workbench, and the fixed scale component and the movable scale component of the grating ruler are respectively connected to the side of the second workbench and the bottom side of the grinding device along the Y direction; The grinding device includes a grinding drive motor, a second unpowered spindle, a transmission device, and a grinding part. The output end of the grinding drive motor is connected to the input end of the second unpowered spindle through the transmission device, and the output end of the second unpowered spindle is connected to the grinding part. The grinding surface of the grinding part is perpendicular to the central axis of the regular rectangular table when it is in zero position.

[0014] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0015] Furthermore, a positioning clamp and a positioning plate are respectively provided on both sides of the first mounting plate in the Y-axis direction, the positioning clamp is passed through in the Y-direction and has an open top, the sleeve outside the measuring rod of the dial indicator is located in the positioning clamp and is locked in position at the top opening of the positioning clamp by a bolt, the measuring rod of the dial indicator extends along the Y-direction to the reference surface on one side of the reference block, one end of the alignment bolt passes through one end of the positioning plate along the Y-direction, and abuts against the reference surface on the other side of the reference block through a positioning reference medium to perform zero position alignment, and in the zero position alignment state, the central axis of the regular rectangular table is perpendicular to the grinding surface of the grinding device; One end of the adjusting screw passes through the other end of the positioning plate along the Y direction and matches the reference surface of the end of the reference block. The connection position of the adjusting screw relative to the positioning plate is adjusted by rotation.

[0016] The embodiments of the present application provide a CNC cylindrical grinding device that has at least the following beneficial effects: On the one hand, the concentric connection design of the regular rectangular table, clamping device and concentric connecting part rotating axis in the present application ensures high-precision positioning of the equipment in the initial state, providing a solid and precise foundation for subsequent grinding processing. The center positioning connection line of the top device and the clamping device is "mirrored" with the horizontal center axis of the regular rectangular table, so that the X-direction position relationship of each component is closely related and precisely corresponds, which greatly improves the accuracy of workpiece positioning and processing and ensures grinding accuracy. The linkage design of the tilt adjustment display device and the regular rectangular table can not only zero-adjust the initial position of the regular rectangular table relative to the grinding surface of the grinding device, but also conveniently adjust the inclination of the center axis of the regular rectangular table relative to the grinding surface, effectively meet the grinding requirements of complex workpieces, optimize the grinding angle, improve the grinding quality and efficiency, and provide a reliable solution for high-precision and diversified mechanical processing needs. It has the advantages of reasonable structural design, high grinding accuracy, and strong adjustability.

[0017] On the other hand, the present application has creatively designed the roll adjustment display device, added a dial indicator, and cleverly combined the dial indicator with the positioning bolt and the adjusting screw in the Y direction. During adjustment, the dial indicator is like an accurate "eye", which can clearly and in real time present the slight changes of the measuring rod. The operator only needs to observe the swing of the dial pointer and the change of the value to intuitively understand the current adjustment status without relying on complex operations or subjective judgments. It greatly simplifies the adjustment process and lowers the operating threshold, so that each adjustment of the grinding taper can achieve extremely high precision standards, providing a solid guarantee for high-quality machining, and truly realizing accurate and fine adjustment of the inclination angle (grinding taper). BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a CNC cylindrical grinding device for this application; Figure 2 This is a schematic diagram of the regular rectangular table and the clamping device in this application being connected through concentric connectors; Figure 3 This is a schematic structural diagram of the first displacement driving device and the concentric connecting member in the present application; Figure 4 This is a schematic diagram of the structure of the top device in this application; Figure 5 This is a schematic structural diagram of the support device in this application; Figure 6 Schematic diagram of the structure of the grinding device in this application; Figure 7 This is a schematic structural diagram of the second displacement drive device connected to the second workbench in this application; Figure 8 This is a structural diagram of the roll adjustment display device in the present application in the zero position alignment state; Figure 9 This is a structural diagram of the roll adjustment display device in the present application in the grinding taper adjustment state; Figure 10 This is a schematic diagram of the method for calculating the grinding taper in this application.

[0019] Numbers in the figure 1-regulating rectangular table; 11-long track; 2-clamping device; 21-clamping drive motor; 22-driving wheel; 23-driven wheel; 24-transmission belt; 25-first unpowered spindle; 26-spindle; 27-expansion sleeve; 3 - Roll adjustment display device; 31 - First mounting plate; 311 - Mounting groove; 312 - Positioning clamp; 313 - Positioning plate; 32 - Dial indicator; 33 - Alignment bolt; 34 - Adjusting screw; 35 - Tension spring; 36 - Reference adjustment plate; 3611 - Displacement adjustment chute; 362 - Reference block; 37 - First locking device; 39 - Positioning reference medium; 4 - Top device; 40 - First locking screw; 41 - Fuselage body; 42 - Top portion; 43 - Adjustment portion; 44 - Third connecting plate; 45 - Fourth chute; 5-grinding device; 51-grinding drive motor; 52-second unpowered spindle; 53-transmission device; 54-grinding part; 55-grinding wheel fixing plate; 551-second chute; 6-concentric connector; 61-first connecting plate; 62-rotating shaft; 63-rotating shaft sleeve; 64-second connecting plate; 641-first slide; 65-locking cylinder; 66-positioning and alignment bolt; 67-first light shield; 68-manual valve; 7-first displacement drive device; 71-first drive motor; 72-first lead screw; 73-first slider; 8 - Support device; 80 - Second locking screw; 81 - First bracket; 812 - Positioning support; 813 - Positioning screw; 814 - Eighth slide; 82 - Second bracket; 822 - Positioning opening slot; 83 - Lower support roller; 84 - Telescopic cylinder; 85 - Fixed pressure plate; 86 - Lower pressure roller; 87 - Third locking screw; 9-second displacement drive device; 91-second drive motor; 92-second lead screw; 93-second slider; 94-second light shield; 95-second photoelectric sensor; 10-grating ruler; 101-fixed scale component; 102-movable scale component; S-rack; S1-first workbench; S11-first slide rail; S2-second workbench; S21-second slide rail; S3-third workbench; S31-third slide rail. DETAILED DESCRIPTION

[0020] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0021] In addition, various components in the drawings are enlarged or reduced in size for ease of understanding, but this is not intended to limit the scope of protection of this application.

[0022] Words importing the singular include the plural and vice versa.

[0023] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance. Their names may be different in the detailed description and claims of the present application.

[0024] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0025] Figure 1 This is a schematic diagram of the overall structure of a CNC cylindrical grinding device for this application, such as Figure 1 As shown, a CNC external cylindrical grinding equipment includes a horizontally arranged regular rectangular table 1 along the X direction, a clamping device 2 concentrically connected to one end of the regular rectangular table 1 through a concentric connector 6, a roll adjustment display device 3 connected to the side of the other end of the regular rectangular table 1, and a top device 4 connected above the regular rectangular table 1. The top device 4 and the clamping device 2 are arranged opposite to each other along the X direction, and the center positioning line between the top device 4 and the clamping device 2 is aligned with the horizontal center axis X direction of the regular rectangular table 1, so that the workpiece is stably and accurately fixed between the clamping device 2 and the top device 4, ensuring the coaxiality of the workpiece and the regular rectangular table 1.

[0026] In some preferred embodiments, a grinding device 5 slidably connected along the Y direction is provided on one side between the top device 4 and the clamping device 2 , and the grinding device 5 is used to perform radial grinding on the clamped workpiece.

[0027] Furthermore, one end of the regular rectangular table 1 and the clamping device 2 are concentrically connected to the rotating axis of the concentric connecting member 6, and the other end side of the regular rectangular table 1 is connected to the roll adjustment display device 3. By adjusting the roll adjustment display device 3, the regular rectangular table 1 and the clamping device 2 can be driven to rotate synchronously with the rotating axis of the concentric connecting member 6 as the center, so as to adjust the inclination of the central axis of the regular rectangular table 1 relative to the grinding surface of the grinding device 5, so that during the grinding process, the grinding device 5 only needs to adjust or calibrate the rotation angle of the regular rectangular table 1, so that the workpiece clamped between the clamping device 2 and the top device 4 can rotate synchronously, reducing the processing error caused by the eccentricity of the workpiece, thereby improving the accuracy of the grinding process and meeting the processing requirements of high-precision parts.

[0028] In some preferred embodiments, the regular rectangular table 1 is slidably connected to the workbench on the frame S along the X direction, so that the regular rectangular table 1 and the grinding device 5 have a reciprocating relative displacement motion along the X direction, so that the surface of the workpiece clamped on the regular rectangular table 1 is evenly ground, thereby improving the grinding quality and efficiency.

[0029] Specifically, such as Figure 2 、 Figure 3 As shown, the frame S is fixedly connected to a first workbench S1, the first workbench S1 is fixedly connected to a first slide rail S11 arranged along the X direction, and the first slide rail S1 is slidably connected to the concentric connector 6, as shown in FIG. Figure 2 As shown, the concentric connecting member 6 includes a first connecting plate 61, a rotating shaft 62, a rotating shaft sleeve 63, and a second connecting plate 64. The upper part of the first connecting plate 61 is fixedly connected to the clamping device 2, and the lower part is fixedly connected to the regular rectangular table 1. A rotating shaft 62 is also fixed below the first connecting plate 61. The lower part of the rotating shaft 62 is rotatably connected in the rotating shaft sleeve 63. The rotating shaft sleeve 63 is fixedly connected to the second connecting plate 64. A plurality of first sliding grooves 641 that pass through along the X direction are provided below the second connecting plate 64. The first sliding grooves 641 are slidably connected to the first slide rail S11, so that the regular rectangular table 1 and the clamping device 2 can be synchronously displaced along the X direction and can also be synchronously rotated with the rotating shaft 62 as the rotation center.

[0030] In some preferred embodiments, the rotating shaft 62 and the rotating shaft sleeve 63 are rotationally connected through a taper fit, that is, the lower part of the rotating shaft 62 is provided with a taper, which is used to enhance self-centering, enhance the tightness of fit, improve transmission accuracy and stability, and improve the performance of the mechanical system.

[0031] In some preferred embodiments, a locking cylinder 65 is provided at the bottom of the rotating shaft sleeve 63, and the output end of the locking cylinder 65 passes through the rotating shaft sleeve 63 and is connected to the end of the rotating shaft 62, so as to lock and fix the rotating shaft 62 to prevent it from unnecessary rotation or displacement due to vibration, external force and other factors during operation.

[0032] In some preferred embodiments, in order to facilitate the control of the locking cylinder 65, the present application further adds a manual valve 68, which is a switching switch for the locking cylinder 65. The manual valve 68 is pneumatically connected to the locking cylinder 65. Preferably, the manual valve 68 is arranged next to the roll adjustment display device 3. This is because it is necessary to rely on the roll adjustment display device 3 to frequently adjust the angle of rotation of the regular rectangular table 1 around the rotation axis. Setting the manual valve 68 next to the roll adjustment display device 3 can reduce the frequency of the operator's reciprocating movement between the operating area and the task execution point. The locking cylinder 65 can be operated in the relaxed state and the brake clamping state only next to the roll adjustment display device 3.

[0033] In some preferred embodiments, the concentric connecting member 6 also includes a positioning and alignment bolt 66, which passes through the second connecting plate 64 and cooperates with an alignment hole below the first connecting plate 61 for positioning. When the alignment bolt 66 cooperates with the alignment hole on the lower surface of the first connecting plate 61, the central axis of the regular rectangular table 1 and the extension line of the motion trajectory of the first slide rail S11 extend in the same direction for initial position positioning. After the positioning is adjusted, the positioning effect of the positioning and alignment bolt 66 on the first connecting plate 61 can be released.

[0034] In some preferred embodiments, Figure 3 As shown, the regular rectangular table 1 is driven by the first displacement driving device 7 to move back and forth along the X direction. The first displacement driving device 7 includes a first driving motor 71, a first lead screw 72, and a first slider 73. The bottom of the second connecting plate 64 is fixedly connected to the first slider 73. The first slider 73 is threadedly connected to the first lead screw 72. The first lead screw 72 is arranged along the X direction. Under the driving action of the first driving motor 71, the first slider 73 drives the concentric connecting member 6 to move back and forth along the X direction on the first lead screw 72, thereby driving the regular rectangular table 1 and the clamping device 2 to move back and forth synchronously along the X direction.

[0035] In some preferred embodiments, a first light blocking plate 67 is provided on the side of the second connecting plate 64, and a first photoelectric sensor 74 is provided at both ends of one side of the first screw 72. The first light blocking plate 67 moves back and forth between the first photoelectric sensors 74 at both ends to accurately detect and feedback the displacement position of the concentric connector 6.

[0036] In some preferred embodiments, the workpiece is rotatably connected between the clamping device 2 and the top device 4, such as Figure 2 、 Figure 3 As shown, the clamping device 2 includes a clamping drive motor 21, a transmission assembly, and a first unpowered spindle 25. The output end of the clamping drive motor 21 is connected to the input end of the first unpowered spindle 25 through the transmission assembly. The output end of the first unpowered spindle 25 is connected to an elastic clamping part, so that the elastic clamping part can adapt to the clamping of workpieces with different diameters, and under the driving action of the clamping drive motor 21, the elastic clamping part can drive the workpiece to rotate, thereby improving the grinding efficiency.

[0037] In some preferred embodiments, the transmission assembly includes a driving wheel 22, a driven wheel 23, and a transmission belt 24. The output end of the clamping drive motor 21 is connected to the driving wheel 22, the input end of the first unpowered main shaft 25 is connected to the driven wheel 23, and the output end of the first unpowered main shaft 25 is connected to the main shaft driving part 26. The diameter of the driving wheel 22 is smaller than the diameter of the driven wheel 23. The driving wheel 22 transmits power to the driven wheel 23 through the transmission belt 24, and drives the elastic clamping part to rotate through the first unpowered main shaft 25. The effect of deceleration and increasing torque is achieved through the diameter difference of the synchronous pulleys.

[0038] In some preferred embodiments, the output end of the first unpowered spindle 25 is connected to the spindle 26, and the end of the spindle 26 facing the top device 4 is connected to the expansion sleeve 27, and the expansion sleeve 27 is an elastic clamping part. The clamping end of the expansion sleeve 27 is provided with a plurality of axial stretching openings distributed along its circumference, so that the expansion sleeve 27 can adapt to workpieces of different diameters.

[0039] In some preferred embodiments, the clamping space between the clamping device 2 and the top device 4 has an adjustment margin along the X-direction, and the regular rectangular table 1 is also fixedly connected to a long rail 11 extending along the X-direction. The top device 4 is slidably connected to the long rail 11 along the X-direction, and the connection position of the top device 4 and the regular rectangular table 1 is positioned by a first locking screw 40 to adapt to workpieces of different lengths.

[0040] Specifically, such as Figure 4As shown, the top device 4 includes a body 41, a top portion 42, an adjusting portion 43, a third connecting plate 44, and a fourth slide groove 45. The top portion 42 is connected to one end of the top of the body 41 and is arranged toward the clamping device 2. The adjusting portion 43 is connected to the other end of the top of the body 41. The adjusting portion 43 is rotatably connected to the top portion 42 through a transmission component. Preferably, the transmission component is a screw and a nut that cooperate with each other. One end of the screw is connected to the adjusting portion 43, and the top portion 42 cooperates with the screw through a nut. The screw and the nut have matching threads. When the screw rotates, the nut will move along the axial direction of the screw, thereby driving the top portion 42 to extend or retract.

[0041] In some preferred embodiments, the bottom of the fuselage 41 is fixedly connected to the third connecting plate 44, the bottom of the third connecting plate is connected to the fourth slide groove 45, the fourth slide groove 45 is slidably connected to the long rail 11, and the first locking screw 40 passes through the third connecting plate 44 and is positioned and connected to the long rail 11 to lock the connection position of the top device 4.

[0042] In some preferred embodiments, a supporting device 8 is further provided between the clamping device 2 and the top device 4. Figure 5 As shown, the supporting device 8 is used to support the workpiece, and the bottom of the supporting device 8 is fixedly connected with an eighth slide groove 814. The supporting device 8 is connected to the long rail 11 by sliding along the X direction through the eighth slide groove 814, and the connection position is locked by the second locking screw 80. When locking, the second locking screw 80 passes through the bottom of the first bracket 81 and is positioned and connected with the long rail 11 to lock the connection position of the supporting device 8.

[0043] In some preferred embodiments, the supporting device 8 includes a first bracket 81, a second bracket 82, a lower supporting roller 83, a telescopic cylinder 84, a fixed pressure plate 85, a lower pressure roller 86, and a third locking screw 87. The back of the second bracket 82 is slidably connected to the first bracket 81 along the Z direction, and the connection position of the two is positioned by the third locking screw 87. The middle part of the second bracket 82 is rotatably connected to the two lower supporting rollers 83, and the top is slidably connected to the fixed pressure plate 85. The fixed pressure plate 85 is rotatably connected to the lower pressure roller 86. The lower pressure roller 86 is arranged above the roller gap between the two lower supporting rollers 83. The telescopic cylinder 84 is fixedly connected to one side of the second bracket 82, and the output end of the telescopic cylinder 84 is connected to the fixed pressure plate 85. Under the action of the telescopic cylinder 84, the lower pressure roller 86 is displaced relative to the roller gap between the two lower supporting rollers 83, so that the supporting device 8 can adjust its supporting position according to the clamping position of workpieces of different diameters, and has good adaptability.

[0044] In some preferred embodiments, the first bracket 81 is a bent plate, and a positioning pillar 812 and a positioning screw 813 are further provided on the vertical plate of the first bracket 81. The positioning pillar 812 extends along the X direction and is stuck in the positioning opening groove 822 opened on the side of the second bracket 82. The positioning screw 813 passes through the positioning pillar along the Z direction, and the bottom is supported on the horizontal plate of the first bracket 81. The relative position of the positioning screw 813 to the positioning pillar 812 is adjusted by rotating, and then the support position of the lower support roller 83 is adjusted.

[0045] In some preferred embodiments, the supporting device 8 is disposed between the clamping device 2 and the top device 4 and is located on the side of the grinding device 5 to avoid the grinding work of the grinding device 5.

[0046] In some preferred embodiments, Figure 6 As shown, the grinding device 5 is connected to the second workbench S2 in a sliding manner along the Y direction, and is driven by the second displacement drive device 9 to move back and forth in the Y direction. Preferably, the second workbench is arranged on one side of the regular rectangular table along the Y-axis direction, and second slide rails S21 extending along the Y-axis direction are respectively provided on both sides of the second workbench S2. Second slide grooves 551 cooperating with the second slide rails S21 are respectively provided on both sides of the bottom surface of the grinding device 5, and the second displacement drive device 9 is provided between the second slide rails S21 on both sides.

[0047] In some preferred embodiments, Figure 7 As shown, the second displacement drive device 9 includes a second drive motor 91, a second lead screw 92, and a second slider 93. The bottom of the grinding device 5 is fixedly connected to the second slider 93. The second slider 93 is threadedly connected to the second lead screw 92. The second lead screw 92 is arranged along the Y direction. Under the driving action of the second drive motor 91, the second slider 93 drives the grinding device 5 to move back to the original position on the second lead screw 92 along the Y direction.

[0048] In some preferred embodiments, a second light blocking plate 94 is provided on the side of the second slider 93, and second photoelectric sensors 95 are respectively provided at both ends of one side of the second screw 92. The second light blocking plate 94 moves back and forth between the second photoelectric sensors 95 at both ends to accurately detect and feedback the displacement position of the grinding device 5.

[0049] In some preferred embodiments, Figure 6As shown, a grating ruler 10 is further provided between the grinding device 5 and the second worktable S2. The grating ruler 10 includes a fixed-size component 101 and a movable-size component 102. The fixed-size component 101 is connected to the side of the second worktable S2 along the Y direction, and the fixed-size component 102 is connected to the bottom side of the grinding device 5 along the Y direction. The movable-size component 102 moves synchronously with the grinding device 5. The displacement of the grinding device 5 relative to the second worktable S2 is accurately read by the reading head of the grating ruler 10, ensuring that the displacement control error of the grinding device is less than the micron level, thereby improving the grinding accuracy.

[0050] In some preferred embodiments, the grinding device 5 includes a grinding drive motor 51, a second unpowered spindle 52, a transmission device 53, a grinding part 54, and a grinding wheel fixing plate 55. The output end of the grinding drive motor 51 is connected to the input end of the second unpowered spindle 52 through the transmission device 53, and the output end of the second unpowered spindle 52 is connected to the grinding part 54. The grinding surface of the grinding part 54 is perpendicular to the central axis of the regular rectangular table 1 when it is in zero position. Under the driving action of the grinding drive motor 51, the grinding part 54 radially grinds the workpiece on the side of the workpiece. When the regular rectangular table 1 moves the workpiece along the X direction, it can be radially ground along the axial direction of the workpiece. At this time, it is only necessary to adjust the rotation angle of the regular rectangular table 1 around its rotation axis to process the taper of its outer surface.

[0051] Furthermore, in order to ensure that the taper of the workpiece can be precisely processed, the applicant has creatively designed the structure of the tilt adjustment display device 3, so that the tilt adjustment display device 3 in this application can not only perform a reference calibration on the regular rectangular table 1, but also obtain the angle of rotation of the regular rectangular table 1 around the center axis.

[0052] like Figure 8 、 Figure 9 As shown, the roll adjustment display device 3 includes a first mounting plate 31, a reference adjustment plate 36, a first locking device 37, and a dial indicator 32, a positioning bolt 33, and an adjusting screw 34 fixed at a position on the first mounting plate 31 and adjustable along the Y direction. One end of the reference adjustment plate 36 is fixedly connected to the side of the regular rectangular table 1, and the other end is provided with a displacement adjustment slot 3611 extending along the Y direction. One end of the first locking device 37 passes through the displacement adjustment slot 3611 and is positioned and connected to the upper surface of the first mounting plate 31 to fix the connection position of the reference adjustment plate 36 on the first mounting plate 31.

[0053] Furthermore, one end of the reference adjustment plate 36 is provided with a reference block 362 extending along the X direction to above the first mounting plate 31. , the two side surfaces of the reference block 362 in the Y-axis direction are both reference surfaces, and the two reference surfaces of the reference block 362 are parallel to the central axis of the regular rectangular table 1. The measuring rod of the dial indicator 32 is set along the Y direction toward one of the reference surfaces, and the alignment bolt 33 and the adjusting screw 34 are set along the Y direction toward the other reference surface. By adjusting the connection position of the adjusting screw 34 or the alignment bolt 33 relative to the first mounting plate 31, the regular rectangular table 1 and the clamping device 2 can be driven to rotate synchronously with the rotation axis of the concentric connecting member 6 as the center. The above arrangement can not only provide a reliable reference for the positioning of the regular rectangular table 1 in the Y-axis direction, but also facilitate accurate monitoring of position changes through the dial indicator 32, which is conducive to reducing positioning errors and improving processing accuracy and assembly quality. At the same time, once the adjusting screw 34 pushes the reference block 362 to change its position angle, the adjustment distance can be read through the dial indicator 32, and then the rotation angle of the regular rectangular table 1 around the rotation axis can be calculated.

[0054] Specifically, the first mounting plate 31 is provided with a positioning clamp 312 and a positioning plate 313 on both sides of the Y-axis direction. The positioning clamp 312 is through-through in the Y-direction and has an open top. The sleeve outside the measuring rod of the dial indicator 32 is located in the positioning clamp 312 and is locked in the connection position at the top opening of the positioning clamp 312 by a bolt. The measuring rod of the dial indicator 32 extends along the Y-direction to the reference surface on one side of the reference block 362. The alignment bolt 33 is fixed to the datum surface of the datum block 362. One end portion passes through one end of the positioning plate 313 along the Y direction, and is abutted against the reference surface on the other side of the reference block 362 through the positioning reference medium 39, and is zero-position aligned by the cylindrical busbar positioning method. In the zero-position aligned state, the central axis of the regular rectangular table 1 is perpendicular to the grinding surface of the grinding device 5. When the regular rectangular table 1 is perpendicular to the grinding surface of the grinding device 5, the alignment bolt 33 and the positioning plate 313 are locked by a nut.

[0055] In some preferred embodiments, after the regular rectangular table 1 completes zero position alignment, the bolt on the positioning clamp 312 is loosened, and the connection position between the sleeve outside the measuring rod of the dial indicator 32 and the positioning clamp 312 is adjusted so that the pointer on the dial indicator 32 returns to zero, and then the bolt on the positioning clamp 312 is tightened.

[0056] In some preferred embodiments, one end of the adjusting screw 34 passes through the other end of the positioning plate 313 along the Y direction and cooperates with the reference surface at the end of the reference block 362. By rotating and adjusting the connection position of the adjusting screw 34 relative to the positioning plate 313, the thrust applied by the adjusting screw 34 to the end of the reference block 362 along the Y direction can be adjusted.

[0057] In some preferred embodiments, the adjusting screw 34 and the dial indicator 32 are both arranged at the free end of the reference block 362 and are arranged opposite to each other, so that the adjusting screw 34 only needs to apply a small thrust to make the free end of the reference adjustment plate 36 start to rotate, thereby driving the regular rectangular table 1 to rotate around its rotation axis, which has the advantages of facilitating precise adjustment and measurement at the same time, efficient calibration, and ensuring compact structure and convenient operation.

[0058] In some preferred embodiments, a downwardly recessed mounting groove 311 is provided on the upper surface of the first mounting plate 31, and the positioning clamp 312 is installed in the mounting groove 311, and the measuring rod of the dial indicator 32 connected in the positioning clamp 312 and the adjusting screw 34 are located in the same horizontal plane, so as to ensure that the adjustment direction of the positioning screw and the measuring direction of the dial indicator are strictly parallel in space, thereby avoiding measurement errors caused by the height difference between the two.

[0059] In some preferred embodiments, the roll adjustment display device 3 also includes a tension spring 35, the two ends of which are respectively connected to the reference adjustment plate 36 and the first mounting plate 31, for applying a pulling force along the Y direction to the reference adjustment plate 36, thereby ensuring that the thrust applied by the adjusting screw 34 to the end of the reference block 362 is balanced, enhancing positioning stability, flexibly adjusting the position of the positioning block, realizing bidirectional adjustment and dynamic compensation, and improving system adaptability and accuracy.

[0060] In some preferred embodiments, the roll adjustment display device 3 is slidably connected to the frame S along the X direction, a third workbench S3 is fixedly connected to the frame S, a third slide rail S31 is fixedly connected to the third workbench S3 along the X direction, and the bottom of the first mounting plate 31 is slidably connected to the third slide rail S31, so that the regular rectangular table 1 can drive the roll adjustment display device 3 to slide back and forth along the X direction.

[0061] The following combination Figure 10 The method of measuring the grinding taper in this application is described as follows: When zero degree is adjusted, the reference point where the dial indicator 32 and the reference block 362 meet is recorded as A, and the first vertical distance from point A to the central axis of the regular rectangular table 1 can be measured and recorded as a1. Since the distance value of a1 is constant after zeroing, there is no need to readjust and measure each time grinding. Therefore, it is only necessary to measure the changing distance of the measuring rod of the dial indicator 32 and the straight-line distance from the rotation center of the concentric connecting member 6 to point A, and the Pythagorean theorem can be used to calculate the inclination angle of the regular rectangular table 1 relative to the grinding device 5. In the process of the reference block 362 and the regular rectangular table 1 being pressed toward or away from the dial indicator 32 by the adjusting screw 34, the changing distance during the adjustment process can be read on the dial indicator 32, which is recorded as a2. The straight-line distance from the rotation center B of the concentric connecting member 6 to point A is constant and measurable, which is recorded as c1. Therefore, each time the grinding taper is adjusted, it is only necessary to read the value of the dial indicator 32 on the zeroed equipment, and the inclination angle of the regular rectangular table 1 relative to the grinding device 5 can be obtained by using trigonometric functions. The above data solving process can be achieved with the help of existing data tables. The inclination angle (grinding taper) can be accurately and finely adjusted in the above manner.

[0062] It should be added that, in order to verify whether the central axis of the regular rectangular table 1 is perpendicular to the grinding surface of the grinding device 5 during the zero position alignment process, while using the positioning reference medium 39 to perform busbar positioning alignment, it is also possible to choose to clamp the workpiece in the clamping device 2 and the top device 4 bracket for trial grinding to confirm whether the zero position alignment is accurate. In addition, even if the reading on the dial indicator 32 is not returned to zero after the zero position is aligned, it will not affect the statistics of subsequent data. It is only necessary to use the reading on the dial indicator 32 at this moment as the reference value for the subsequent adjustment data for addition. The above example description of taper adjustment is only used as a preferred example of the relevant technology for the purpose of assisting understanding, and should not be regarded as a limitation on the technical scope, implementation method, etc. of this application.

[0063] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A CNC cylindrical grinding device for grinding the surface of a clamped workpiece, characterized in that: include: A regular rectangular table (1), a clamping device (2), a roll adjustment display device (3), and a top device (4) are arranged horizontally along the X direction, one end of the regular rectangular table (1) and the clamping device (2) are concentrically connected to the rotation axis of the concentric connecting member (6), the other end side of the regular rectangular table (1) is connected to the roll adjustment display device (3), the top device (4) and the clamping device (2) are arranged opposite to each other along the X direction, and the center positioning connection line between the top device (4) and the clamping device (2) is aligned with the horizontal center axis X direction of the regular rectangular table (1), and a radial grinding device (5) is provided on one side between the top device (4) and the clamping device (2); By adjusting the roll adjustment display device (3), the regular rectangular table (1) and the clamping device (2) are driven to rotate synchronously with the rotation axis of the concentric connecting member (6) as the center, so as to adjust the inclination of the central axis of the regular rectangular table (1) relative to the grinding surface of the grinding device (5).

2. The CNC cylindrical grinding equipment according to claim 1, characterized in that: The concentric connecting member (6) is slidably connected to the first workbench (S1) on the frame (S) along the X direction, and is driven by the first displacement driving device (7) to move back and forth along the X direction on the first workbench (S1), so that the workpiece clamped on the regular rectangular table (1) has a reciprocating relative displacement motion along the X direction relative to the grinding device (5).

3. The CNC cylindrical grinding equipment according to claim 2, characterized in that: The concentric connecting member (6) includes a first connecting plate (61), a rotating shaft (62), a rotating shaft sleeve (63), and a second connecting plate (64). The upper portion of the first connecting plate (61) is fixedly connected to the clamping device (2), and the lower portion is fixedly connected to the regular rectangular table (1). A rotating shaft (62) is also fixedly provided below the first connecting plate (61). The lower portion of the rotating shaft (62) is rotatably connected to the rotating shaft sleeve (63). The rotating shaft sleeve (63) is fixedly connected to the second connecting plate (64). The second connecting plate (64) is slidably connected to the first workbench (S1) along the X direction, and the second connecting plate (64) is fixedly connected to the X-direction displacement output end of the first displacement driving device (7).

4. The CNC cylindrical grinding equipment according to claim 1, characterized in that: The clamping device (2) includes a clamping drive motor (21), a transmission assembly, and a first unpowered spindle (25). The output end of the clamping drive motor (21) is connected to the input end of the first unpowered spindle (25) through the transmission assembly. The output end of the first unpowered spindle (25) is connected to an elastic clamping portion facing the top device (4). The clamped workpiece is rotatably connected between the clamping device (2) and the top device (4), and the clamping space between the clamping device (2) and the top device (4) has an adjustment margin along the X direction.

5. The CNC cylindrical grinding equipment according to claim 4, characterized in that: The transmission assembly includes a driving wheel (22), a driven wheel (23), and a transmission belt (24). The output end of the clamping drive motor (21) is connected to the driving wheel (22), the input end of the first unpowered main shaft (25) is connected to the driven wheel (23), and the output end of the first unpowered main shaft (25) is connected to the main shaft (26). The diameter of the driving wheel (22) is smaller than the diameter of the driven wheel (23). The driving wheel (22) transmits power to the driven wheel (23) through the transmission belt (24), and drives the main shaft (26) to rotate through the first unpowered main shaft (25). The end of the main shaft (26) is connected to a sleeve (27).

6. The CNC cylindrical grinding equipment according to claim 4, characterized in that: The top device (4) includes a body (41), a top portion (42), and an adjusting portion (43). The bottom of the body (41) is slidably connected to the long rail (11) of the regular rectangular table (1) along the X direction, and the connection position is locked by a first locking screw (40). The two ends of the top of the body (41) are respectively connected to the top portion (42) and the adjusting portion (43). The top portion (42) is arranged toward the clamping device (2) along the X direction, and the adjusting portion (43) is rotatably connected to the top portion (42) through a transmission component. The adjusting portion (43) is rotated to drive the top portion (42) to move in an axial direction through the transmission component.

7. The CNC cylindrical grinding equipment according to claim 1, characterized in that: A support device (8) whose fixed position is adjustable along the X direction is further provided between the clamping device (2) and the top device (4), and the support position of the support device (8) is adjustable along the Z direction; The supporting device (8) comprises a first bracket (81), a second bracket (82), a lower support roller (83), a telescopic cylinder (84), a fixed pressure plate (85), a lower pressure roller (86), and a third locking screw (87). The back of the second bracket (82) is connected to the first bracket (81) in a sliding manner along the Z direction, and the connection position of the two is positioned by the third locking screw (87). The middle part of the second bracket (82) is rotatably connected to the two lower support rollers (83), and the top is slidably connected to the fixed pressure plate (85). The fixed pressure plate (85) is rotatably connected to the lower pressure roller (86). The lower pressure roller (86) is arranged above the roller gap between the two lower support rollers (83). The telescopic cylinder (84) is fixedly connected to one side of the second bracket (82), and the output end of the telescopic cylinder (84) is connected to the fixed pressure plate (85). Under the action of the telescopic cylinder (84), the lower pressure roller (86) is displaced relative to the roller gap between the two lower support rollers (83). The first bracket (81) is slidably connected to the long rail (11) of the regular rectangular platform (1) along the X direction, and the connection position is locked by a second locking screw (80).

8. The CNC cylindrical grinding equipment according to claim 1, characterized in that: The grinding device (5) is connected to the second workbench (S2) in a sliding manner along the Y direction, and is driven to move back and forth along the Y direction by the second displacement driving device (9). A grating ruler (10) is also provided between the grinding device (5) and the second workbench (S2). The fixed scale component (101) and the movable scale component (102) of the grating ruler (10) are respectively connected to the side of the second workbench (S2) and the bottom side of the grinding device (5) along the Y direction. The grinding device (5) comprises a grinding drive motor (51), a second unpowered spindle (52), a transmission device (53), and a grinding portion (54). The output end of the grinding drive motor (51) is connected to the input end of the second unpowered spindle (52) through the transmission device (53), and the output end of the second unpowered spindle (52) is connected to the grinding portion (54). The grinding surface of the grinding portion (54) is perpendicular to the central axis of the regular rectangular table (1) when it is in a zero position.

9. The CNC cylindrical grinding equipment according to claim 1, characterized in that: The roll adjustment display device (3) comprises a first mounting plate (31), a reference adjustment plate (36), a first locking device (37), and a dial indicator (32) fixed on the first mounting plate (31) and adjustable in the Y direction, a positioning bolt (33), and an adjusting screw (34). One end of the reference adjustment plate (36) is fixedly connected to the side of the regular rectangular table (1), and the other end is provided with a displacement adjustment slot (3611) extending in the Y direction. One end of the first locking device (37) passes through the displacement adjustment slot (3611) and is positioned and connected to the upper surface of the first mounting plate (31). One end of the reference adjustment plate (36) is provided with a displacement adjustment slot (3611) extending in the X direction to the first A reference block (362) is provided above the mounting plate (31), and both side surfaces of the reference block (362) in the Y-axis direction are reference surfaces. Both reference surfaces of the reference block (362) are parallel to the central axis of the regular rectangular table (1). The measuring rod of the dial indicator (32) is arranged along the Y-direction toward one of the reference surfaces. The alignment bolt (33) and the adjusting screw (34) are arranged along the Y-direction toward the other reference surface. By adjusting the connection position of the adjusting screw (34) or the alignment bolt (33) relative to the first mounting plate (31), the regular rectangular table (1) and the clamping device (2) are driven to rotate synchronously with the rotation axis of the concentric connecting member (6) as the center.

10. The CNC cylindrical grinding equipment according to claim 9, characterized in that: The first mounting plate (31) is provided with a positioning clamp (312) and a positioning plate (313) on both sides of the Y-axis direction, respectively. The positioning clamp (312) is passed through in the Y-direction and has an open top. The sleeve outside the measuring rod of the dial indicator (32) is located in the positioning clamp (312) and is locked in position at the top opening of the positioning clamp (312) by a bolt. The measuring rod of the dial indicator (32) extends in the Y-direction to the reference surface on one side of the reference block (362). One end of the alignment bolt (33) passes through one end of the positioning plate (313) in the Y-direction and abuts against the reference surface on the other side of the reference block (362) through a positioning reference medium (39) for zero alignment. In the zero alignment state, the central axis of the regular rectangular table (1) is perpendicular to the grinding surface of the grinding device (5); One end of the adjusting screw (34) passes through the other end of the positioning plate (313) along the Y direction and matches the reference surface of the end of the reference block (362). The connection position of the adjusting screw (34) relative to the positioning plate (313) is adjusted by rotation.

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