A camshaft vertical grinder upper shaft device and camshaft production line

Abstract

The present application relates to camshaft production technical field, disclose a kind of camshaft vertical grinder is used with the shaft device and camshaft production line, including the fixed plate being vertically installed on the workbench of vertical grinder, the clamping mechanism is slidably arranged on the fixed plate, characterized by: the fixed plate is provided with drive assembly and shaft assembly, the workbench is provided with storage shaft component, the shaft assembly includes box, the box is drivingly connected with drive assembly, the end of the box close to clamping mechanism is provided with accommodating groove, the accommodating groove is provided with reset component, first shaft clamping mechanism and second shaft clamping mechanism, the workbench is provided with shaft connecting component.The present application solves the problem of low automation degree in prior art, the worker manually installs camshaft on clamping device, after grinding, manually remove camshaft on clamping device again.

Description

Technical Field

[0001] This invention relates to the field of camshaft manufacturing technology, and in particular to an upper shaft device for a vertical camshaft grinding machine and a camshaft production line. Background Technology

[0002] With economic development, the automotive industry has also developed rapidly. This rapid development has led to the rapid growth of various automotive parts industries. The camshaft is a major component of an engine. As the trend in engine development is towards multi-cylinder, multi-valve designs, and the intake and exhaust of each valve must be controlled by the shape of the cam on the camshaft, the development trend of the camshaft is to arrange more and more cams on the camshaft.

[0003] In the camshaft manufacturing process, the camshaft needs to be ground, which requires the use of a grinding machine. To grind a camshaft, it is first clamped in the clamping device of the grinding machine, and then ground by the grinding wheel.

[0004] Camshaft grinding machines include vertical grinding machines and horizontal grinding machines. Vertical grinding machines have advantages in terms of processing efficiency, quality, and floor space, and are especially suitable for mass production and high-precision applications. Horizontal grinding machines, on the other hand, excel in terms of ease of operation and maintenance, lower cutting forces, and cost control, making them more suitable for a wider range of processing needs and for operators with varying skill levels.

[0005] Currently, in the vertical grinding process, most workers manually install the camshaft onto the clamping device, and then manually remove the camshaft from the clamping device after grinding. The level of automation needs to be improved. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide an upper shaft device and a camshaft production line for a vertical camshaft grinding machine, so as to solve the problem of low automation caused by workers manually installing the camshaft on the clamping device and then manually removing the camshaft from the clamping device after grinding.

[0007] The present invention solves the above-mentioned technical problems through the following technical means: an upper shaft device and camshaft production line for a vertical camshaft grinding machine, comprising a fixed plate vertically mounted on the worktable of the vertical grinding machine, wherein a clamping mechanism is slidably disposed on the fixed plate, characterized in that: a drive assembly and an upper shaft assembly are disposed on the fixed plate, a shaft storage assembly is disposed on the worktable, the upper shaft assembly comprises a housing, the housing is drively connected to the drive assembly, a receiving groove is opened at one end of the housing near the clamping mechanism, a reset assembly, a first shaft clamping mechanism and a second shaft clamping mechanism are disposed in the receiving groove, and a shaft receiving assembly is disposed on the worktable.

[0008] Furthermore, the storage shaft assembly includes a vertically mounted and rotatable shaft on the workbench. The shaft is located on one side of the housing. An upper sleeve and a lower sleeve are fixedly sleeved on the shaft. Several support plates are arranged circumferentially on the lower sleeve. A lower plate is provided above each support plate on the lower sleeve. An upper plate is provided on the upper sleeve corresponding to each lower plate. A sliding groove is provided on both the lower plate and the upper plate. A slot is provided at the end of the sliding groove away from the shaft. A first elastic protrusion is provided at both ends of the slot. A push rod and a first spring are provided at the end of the sliding groove near the shaft. One end of the first spring is fixedly connected to the upper / lower sleeve, and the other end is fixedly connected to the push rod.

[0009] Furthermore, the reset assembly includes a rod and a reset plate. The rod passes through the outer casing of the housing and is fitted with a second spring. One end of the second spring is connected to the housing and the other end is connected to the reset plate. The reset plate is provided with a plurality of correction blocks, and the correction blocks are provided with correction grooves.

[0010] Furthermore, several second elastic protrusions are provided on the left and right sides of the outlet end of the receiving groove, and an inclined surface is provided on the side of the box body away from the fixed plate.

[0011] Furthermore, the first clamping shaft mechanism includes first clamping components symmetrically arranged on the left and right sides of the receiving groove. The first clamping components are located at the outlet end of the receiving groove and are slidably connected to the box body. The first clamping components include a movable seat, and the movable seat has a first cavity inside. A first magnetic block is slidably connected in the first cavity. A first clamping rod is fixedly connected to the outer end of the first magnetic block. The outer end of the first clamping rod extends through the cavity wall of the first cavity into the receiving groove. A first arc-shaped clamping plate is fixed to one end of the first clamping rod located in the receiving groove. A first electromagnet is embedded in the cavity wall of the first cavity. A third spring is fitted on the surface of the first clamping rod. One end of the third spring is fixedly connected to the first magnetic block, and the other end is fixedly connected to the cavity wall of the first cavity.

[0012] Furthermore, dovetail grooves are provided on the side walls of the receiving groove on both the left and right sides. The movable seat is slidably embedded in the dovetail groove. A fourth spring is provided in the dovetail groove. One end of the fourth spring is fixedly connected to the groove wall of the dovetail groove, and the other end is fixedly connected to the movable seat. The part of the first arc-shaped clamp near the outlet end of the receiving groove is made of elastic material.

[0013] Furthermore, a battery is installed inside the side wall of the box near the fixed plate, and a groove is provided on the surface of the side wall away from the fixed plate. A pressing block is slidably embedded in the groove. A fifth spring is provided between the inner end of the pressing block and the groove wall, and the outer end protrudes outside the groove. The two ends of the fifth spring are fixedly connected to the pressing block and the groove wall, respectively. A pair of first conductive sheets are embedded in the two side walls of the groove. A first conductive strip is embedded in the inner end of the pressing block. The first conductive sheets are electrically connected to the first electromagnet and the output end of the battery through wires.

[0014] Furthermore, the second clamping shaft mechanism and the first clamping shaft mechanism are arranged at intervals in the vertical direction. The second clamping shaft mechanism includes second clamping components symmetrically arranged on the left and right sides of the receiving groove. The second clamping components are located at the outlet end of the receiving groove. The side walls on both sides of the receiving groove are provided with second cavities. The second clamping components include a second electromagnet embedded in the cavity wall of the second cavity and a second magnetic block slidably installed in the second cavity. The outer end of the second magnetic block is fixedly connected to a second clamping rod. The outer end of the second clamping rod extends through the cavity wall of the second cavity into the receiving groove. A second arc-shaped clamping plate is fixed to one end of the second clamping rod located in the receiving groove. A sixth spring is fitted on the surface of the second clamping rod. One end of the sixth spring is fixedly connected to the second magnetic block, and the other end is fixedly connected to the cavity wall of the second cavity. A pair of second conductive plates are embedded in the side walls on both sides of the receiving groove. A second conductive strip is provided on the reset plate. The second conductive plates are electrically connected to the second electromagnet and the output end of the battery through wires.

[0015] Furthermore, a mounting groove is provided on the surface of the pressing block at the end away from the outlet end of the receiving groove. A spherical block is slidably embedded in the mounting groove. The spherical block protrudes outside the mounting groove. A seventh spring is provided between the inner end of the spherical block and the groove wall of the mounting groove. The two ends of the seventh spring are fixedly connected to the spherical block and the groove wall of the mounting groove, respectively. A push rod is fixed to the inner end of the spherical block. The other end of the push rod passes through the groove wall of the mounting groove and the groove wall in sequence and extends into the receiving groove. A lever is inclinedly provided in the receiving groove. The middle part of the lever is rotatably mounted on the side wall of the receiving groove. One end of the lever is hinged to the end of the push rod located in the receiving groove, and the other end forms a suspended end and is located at the position of the second conductive sheet.

[0016] The present invention also discloses a camshaft production line that uses the upper shaft device as described above.

[0017] The beneficial effects of this invention are as follows: By configuring a drive assembly, an upper shaft assembly, a shaft storage assembly, a first shaft clamping mechanism, and a second shaft clamping mechanism, the drive assembly can drive the housing to transport the camshaft to be ground from the shaft storage assembly to the clamping mechanism. When the camshaft to be ground in the shaft storage assembly is inserted into the receiving groove of the housing, the first shaft clamping mechanism clamps and fixes the camshaft to be ground to prevent it from falling vertically. Under the action of the drive mechanism, the housing continues to move and inserts the ground camshaft into the receiving groove of the housing. At this time, the second shaft clamping mechanism clamps and fixes the ground camshaft to prevent it from falling vertically. After the clamping mechanism releases the ground camshaft, the drive assembly continues to drive the housing forward to the receiving shaft assembly. At this time, the second shaft clamping mechanism releases, and the ground camshaft falls onto the receiving shaft assembly and is collected. At the same time, the spring pushes the camshaft to be ground to the outlet end of the receiving groove, and the housing moves back to the position of the clamping mechanism so that the clamping mechanism can clamp the camshaft to be ground securely. The drive motor then drives the housing to move back to realize the camshaft replacement. No manual operation by the operator is required, and the degree of automation is high. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0020] Figure 2 This is a cross-sectional view of the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0021] Figure 3 This is a schematic diagram of the clamping mechanism in the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0022] Figure 4 This is a schematic diagram of the shaft storage assembly in the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0023] Figure 5 This is a partial structural schematic diagram of the shaft storage assembly in the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0024] Figure 6 yes Figure 5 A magnified structural diagram of point A in the middle.

[0025] Figure 7 This is a schematic diagram of the structure of the housing in the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0026] Figure 8 This is a schematic diagram of the resetting component in the upper shaft device of a vertical camshaft grinding machine according to the present invention.

[0027] Figure 9 This is a partial cross-sectional view of the housing in the upper shaft device for a vertical camshaft grinding machine according to the present invention.

[0028] Figure 10 yes Figure 9 A magnified structural diagram at point B in the middle.

[0029] Figure 11 yes Figure 9 A magnified structural diagram at point C.

[0030] Figure 12 This is a schematic diagram of a camshaft production line according to the present invention.

[0031] In the above attached figures: 1. Workbench; 11. Fixing plate; 12. First clamping component; 13. Second clamping component; 14. Slide rail; 15. Cylinder; 16. Track; 17. Material discharge hole; 2. Storage shaft assembly; 21. Rotating shaft; 22. Rotary motor; 23. Upper sleeve; 24. Lower sleeve; 25. Upper plate; 26. Lower plate; 27. Slide groove; 28. Groove; 29. ​​First elastic protrusion; 210. Support plate; 211. Push rod; 212. First spring; 3. Reset assembly; 31. Rod; 32. Reset plate; 33. Second spring; 34. Correction block; 35. Correction groove; 36. Clearance opening; 4. Box body; 41. Receiving groove; 42. Second elastic protrusion; 43. Sloping surface; 44. Dovetail groove; 45. Fourth spring; 46. Storage battery; 5. Camshaft; 6. First clamping assembly; 61. Movable seat; 62. First cavity; 63. First electromagnet; 64. First magnetic block; 65. First clamping rod; 66. Third spring; 67. First arc-shaped clamping plate; 671. Left clamping plate; 672. Right clamping plate; 71. Groove; 72. Pressing block; 73. Fifth spring; 74. First conductive sheet; 75. First conductive strip; 81. Mounting slot; 82. Spherical block; 83. Seventh spring; 84. Push rod; 85. Lever; 9. Second clamping assembly; 91. Second clamping rod; 92. Second arc-shaped clamping plate; 93. Second conductive sheet; 94. Second conductive strip. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged, or reduced, and do not represent the actual product size; it is understandable for those skilled in the art that some well-known mechanisms and their descriptions may be omitted in the figures.

[0033] In the figures of this invention, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the figures are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In the description of this application, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Example 1: As Figure 1-11 As shown, the present invention provides an upper shaft device for a vertical grinding machine with a camshaft 5, comprising a fixed plate 11 vertically fixedly mounted on the worktable 1 of the vertical grinding machine. A clamping mechanism is provided on the fixed plate 11, comprising a first clamping member 12 and a second clamping member 13, both of which are slidably mounted on the fixed plate 11. In this embodiment, a slide rail 14 is fixedly mounted on the fixed plate 11, the slide rail 14 being vertically arranged. The first clamping member 12 and the second clamping member 13 are both slidably mounted on the slide rail 14, achieving a sliding connection. Both the first clamping member 12 and the second clamping member 13 are driven by a pneumatic or hydraulic system to achieve vertical lifting and lowering, so as to clamp or release the camshaft 5. The structural features of the first clamping member 12 and the second clamping member 13 in this embodiment have been fully disclosed in the prior art, and therefore will not be described in detail here.

[0035] A drive assembly and an upper shaft assembly are mounted on the fixed plate 11. A shaft storage assembly 2 is mounted on the worktable 1. The upper shaft assembly includes a housing 4, which is connected to the drive assembly. A receiving groove 41 is provided at one end of the housing 4 near the clamping mechanism. A reset assembly 3, a first shaft clamping mechanism, and a second shaft clamping mechanism are mounted inside the receiving groove 41. The reset assembly 3 includes a rod 31 and a reset plate 32. The rod 31 passes through the housing 4 and is fitted with a second spring 33. One end of the second spring 33 is fixedly connected to the inner wall of the housing 4, and the other end is fixedly connected to the reset plate 32. Several correction blocks 34 are provided on the reset plate 32, and correction grooves 35 are provided on the correction blocks 34. The receiving groove 41 is used to store camshafts 5, and the reset assembly 3 is used to keep the camshafts 5 in the receiving groove 41 at the outlet end of the receiving groove 41. A shaft receiving assembly is provided on the worktable 1, located in front of the clamping mechanism, and is used to receive camshafts 5 that fall out of the receiving groove 41.

[0036] In one feasible implementation, the drive assembly includes a cylinder 15 and a track 16. The cylinder 15 is fixed to the fixed plate 11 by bolts, and the telescopic end of the cylinder 15 is fixedly connected to the rear end face of the box 4. The track 16 is horizontally fixed to the fixed plate 11, and the cross-section of the track 16 is wedge-shaped. The box 4 is slidably mounted on the track 16, providing stable support for the box 4. With this structural design, the extension and retraction of the cylinder 15 can drive the box 4 to move forward or backward.

[0037] In other feasible embodiments, the drive assembly includes a drive motor, a lead screw, and a guide rod. The drive motor is fixed to the fixed plate 11 by bolts. The drive motor lead screw is rotatably mounted on the fixed plate 11 by a bracket. The lead screw is horizontally set. The guide rod is fixed to the fixed plate 11 and is parallel to the lead screw. The housing 4 passes through a threaded hole for the lead screw to pass through and a through hole for the guide rod to pass through in the front-back direction. When the motor rotates, it can drive the lead screw to move forward or backward.

[0038] The storage shaft assembly 2 includes a vertically mounted and rotatable shaft 21 on the worktable 1. Specifically, the shaft 21 is rotatably mounted on the worktable 1 via bearings. A rotary motor 22 is installed at the bottom of the worktable 1, and the bottom end of the shaft 21 passes through the worktable 1 and is fixedly connected to the output end of the rotary motor 22. The shaft 21 is located on one side of the housing 4, and the shaft 21 and the housing 4 are located on the same side of the fixing plate 11. An upper sleeve 23 and a lower sleeve 24 are fixedly sleeved on the shaft 21. Several support plates 210 are evenly arranged along the circumference of the lower sleeve 24. In this embodiment, the support plates 210 are horizontally arranged, and there are four support plates 210. The surface of the support plates 210 is smooth. The lower sleeve 24 is provided with a lower plate body 26 above each support plate 210, and the upper sleeve 23 is provided with an upper plate body 25 corresponding to each lower plate body 26. Both the lower plate body 26 and the upper plate body 25 are provided with a sliding groove 27. In this embodiment, a retaining strip (not shown in the figure) can be provided on the upper surface of the support plate 210. The retaining strip is provided in the middle of the support plate 210 along the length direction of the support plate 210. The retaining strip corresponds to the positioning groove of the camshaft 5. The retaining strip is locked in the positioning groove to prevent the camshaft 5 to be ground in the sliding groove 27 from rotating.

[0039] The slide groove 27 has a slot 28 at the end away from the rotating shaft 21. Both ends of the slot 28 have first elastic protrusions 29. In this embodiment, the receiving groove 41 corresponds to the positions of the camshafts 5 to be ground at the inner and outer ends of the slide groove 27. When the drive assembly drives the housing 4 to move towards the clamping mechanism and to the shaft storage assembly 2, the camshaft 5 at the outermost end of the slide groove 27 facing the fixed plate 11 enters the receiving groove 41, pressing the reset plate 32 and the second spring 33 until the outermost camshaft 5 passes through the first elastic protrusions 29 at both ends of the slot 28, leaving the camshaft 5 in the receiving groove 41. The housing 4 has a slope 43 on the side away from the fixed plate 11. By setting the slope 43, when the housing 4 passes the shaft storage assembly 2, the camshafts 5 except for the outermost end can be pushed into the slide groove 27, preventing the inner camshaft 5 from blocking the housing 4 from continuing to move. Among them, the end of the slide groove 27 closer to the rotating shaft 21 is the inner end, and the end farther away from the rotating shaft 21 is the outer end.

[0040] A push rod 211 and a first spring 212 are provided at the inner end of the slide groove 27. One end of the first spring 212 is fixedly connected to the upper sleeve 23 / lower sleeve 24, and the other end is fixedly connected to the push rod 211. In this embodiment, the push rod 211 is semi-cylindrical in shape, and the first spring 212 is in a compressed state. The diameter of the push rod 211 is the same as the shaft diameter of the camshaft 5. The arc-shaped sidewall of the push rod 211 is used to abut against the camshaft 5 to be ground, and the straight sidewall is connected to the first spring 212. By setting the push rod 211 and the first spring 212, after the outermost camshaft 5 to be ground is taken away by the housing 4, the push rod 211 is pushed by the first spring 212 in subsequent processes, which can push the inner camshaft 5 to be ground to the outer end, so that the housing 4 can take the camshaft 5 to be ground from the shaft storage assembly 2 in the next cycle.

[0041] In the above embodiment, two camshafts 5 to be ground are placed in the slide groove 27 at one time, which makes it convenient for the staff to put the camshafts 5 to be ground into the slide groove 27.

[0042] The first clamping mechanism includes first clamping components 6 symmetrically arranged on the left and right sides of the receiving groove 41. The first clamping components 6 are located at the outlet end of the receiving groove 41 and are slidably connected to the box body 4. Specifically, the side walls on both sides of the receiving groove 41 are provided with inwardly recessed dovetail grooves 44 along the moving direction of the box body 4. The shape of the movable seat 61 matches the dovetail groove 44 and is slidably embedded in the dovetail groove 44. A fourth spring 45 is provided in the dovetail groove 44. One end of the fourth spring 45 is fixedly connected to the groove wall of the dovetail groove 44, and the other end is fixedly connected to the movable seat 61. The fourth spring 45 is used to keep the movable seat 61 at the outlet end of the receiving groove 41.

[0043] The first clamping assembly 6 includes a movable base 61, inside which is a first cavity 62. A first magnetic block 64 is slidably connected within the first cavity 62. A first clamping rod 65 is fixedly connected to the outer end of the first magnetic block 64. The outer end of the first clamping rod 65 extends through the cavity wall of the first cavity 62 into a receiving groove 41. A first arc-shaped clamping plate 67 is fixed to one end of the first clamping rod 65 located within the receiving groove 41. The portion of the first arc-shaped clamping plate 67 near the outlet end of the receiving groove 41 is made of an elastic material. Specifically, the first arc-shaped clamping plate 67... The axis of plate 67 is parallel to the vertical direction. The first arc-shaped clamping plate 67 is used to clamp and fix the shaft part of the camshaft 5 to be ground in the upper shaft assembly, so that the camshaft 5 to be ground will not fall vertically from the receiving groove 41. The first arc-shaped clamping plate 67 includes a left clamping plate 671 and a right clamping plate 672. The left clamping plate 671 is closer to the outlet end of the receiving groove 41. The left clamping plate 671 is made of elastic material, so that when the camshaft 5 to be ground is sent to the clamping mechanism for clamping and fixing, the box 4 can be separated from the camshaft 5 to be ground. A first electromagnet 63 is embedded in the cavity wall of the first cavity 62, and a third spring 66 is fitted on the surface of the first clamping rod 65. The third spring 66 is located inside the first cavity 62. One end of the third spring 66 is fixedly connected to the first magnetic block 64, and the other end is fixedly connected to the cavity wall of the first cavity 62. In this embodiment, when no power is applied, the first magnetic block 64 is located at the inner end of the first cavity 62 and is in contact with the first electromagnet 63 under the action of the third spring 66. When power is applied, the first electromagnet 63 and the magnetic block repel each other, causing the first magnetic block 64, the first clamping rod 65, and the first arc-shaped clamping plate 67 to move along the middle of the horizontal receiving groove 41, thereby enabling the first arc-shaped clamping plate 67 to clamp and fix the camshaft 5 to be ground.

[0044] A battery 46 is installed inside the side wall of the box 4 near the fixing plate 11. A recessed groove 71 is provided on the side wall surface away from the fixing plate 11 along the moving direction of the box 4. A pressing block 72 is slidably embedded in the groove 71. A fifth spring 73 is provided between the inner end of the pressing block 72 and the groove wall of the groove 71, with its outer end protruding outside the groove 71. The two ends of the fifth spring 73 are fixedly connected to the pressing block 72 and the groove wall of the groove 71, respectively. A pair of first conductive sheets 74 are embedded in the two side walls of the inner end of the groove 71. A first conductive strip 75 is embedded in the inner end of the pressing block 72. The first conductive sheets 74 are electrically connected to the output terminals of the first electromagnet 63 and the battery 46 via wires. A wire-passing hole is provided on the movable base 61 to facilitate the passage of wires. The pressing block 72 near the outlet end of the receiving groove 41 is also provided with a slope 43. When the box 4 passes through the storage shaft assembly 2, it can push the camshaft 5 to be ground, except for the outermost end, into the slide groove 27, so as to prevent the inner camshaft 5 from blocking the box 4 from continuing to move. At this time, the camshaft 5 to be ground located at the inner end of the slide groove 27 abuts against the surface of the box 4, and just presses the pressing block 72 inward. Then the first conductive strip 75 contacts the first conductive sheet 74, and the circuit is connected. The magnetism generated by the first electromagnet 63 after being energized is repelled by the magnetism of the first magnetic block 64. When the first electromagnet 63 is not energized, the first electromagnet 63 is equivalent to an iron core, which has ferromagnetism to attract the first magnetic block 64 to keep it in a close state.

[0045] The second clamping mechanism is vertically spaced from the first clamping mechanism. The second clamping mechanism includes second clamping components 9 symmetrically arranged on the left and right sides of the receiving groove 41. The second clamping components 9 are located at the outlet end of the receiving groove 41. The side walls on both sides of the receiving groove 41 have second cavities. The second clamping components 9 include a second electromagnet embedded in the cavity wall of the second cavity and a second magnetic block slidably installed in the second cavity. The outer end of the second magnetic block is fixedly connected to a second clamping rod 91. The outer end of the second clamping rod 91 extends through the cavity wall of the second cavity into the receiving groove 41. A second arc-shaped clamping plate 92 is fixed to one end of the second clamping rod 91 in the receiving groove 41. A sixth spring is fitted on the surface of the second clamping rod 91. The sixth spring is located in the second cavity. One end of the sixth spring is fixedly connected to the second magnetic block, and the other end is fixedly connected to the cavity wall of the second cavity. A pair of second conductive plates 93 are embedded in the side walls on both sides of the receiving groove 41. A second conductive strip 94 is provided on the reset plate 32. The second conductive plates 93 are electrically connected to the second electromagnet and the output end of the battery 46 through wires. The structure of the second clamping component 9 is similar to that of the first clamping component 6. Their working principle is that after the electromagnet is energized, it repels the magnetic block, thereby driving the arc-shaped clamping plate to clamp the camshaft 5.

[0046] A mounting groove 81 is provided on the surface of the end of the pressing block 72 away from the outlet end of the receiving groove 41. A spherical block 82 is slidably embedded in the mounting groove 81. The outside of the spherical block 82 protrudes outside the mounting groove 81. A seventh spring 83 is provided between the inner end of the spherical block 82 and the groove wall of the mounting groove 81. The two ends of the seventh spring 83 are fixedly connected to the spherical block 82 and the groove wall of the mounting groove 81, respectively. A push rod 84 is fixed to the inner end of the spherical block 82. The other end of the push rod 84 passes through the groove wall of the mounting groove 81 and the groove wall of the groove 71 in sequence and extends into the receiving groove 41. A lever 85 is inclinedly provided in the receiving groove 41. The middle part of the lever 85 is rotatably mounted on the side wall of the receiving groove 41. One end of the lever 85 is hinged to the end of the push rod 84 located in the receiving groove 41, and the other end forms a suspended end and is located at the position of the second conductive sheet 93. The spherical block 82 is pressed down, which drives the top rod 84 to move, thereby causing the suspended end of the lever 85 to swing. Since the conductive strip is a thin metal sheet, it has a certain elasticity. The swing of the suspended end of the lever 85 can just separate the second conductive strip 94 from the second conductive sheet 93.

[0047] When the box 4 passes through the shaft storage assembly 2, the camshaft 5 to be ground in the shaft storage assembly 2 is left in the receiving groove 41. The reset assembly 3 keeps the camshaft 5 to be ground at the outlet end of the receiving groove 41. The reset plate 32 of the reset assembly 3 moves backward a certain distance. At the same time, the remaining camshaft 5 in the slide groove 27 or the push rod 211 presses the pressing block 72. The two first clamping groups just clamp and fix the camshaft 5 to be ground left in the receiving groove 41. The box 4 continues to move forward, and the pressing block 72 always remains in the pressing state. When the box 4 reaches the clamping mechanism, the ground camshaft 5 on the clamping mechanism will be squeezed into the receiving groove 41 and push the camshaft 5 to be ground, the reset assembly 3 and the two first clamping assemblies 6 to move away from the clamping mechanism. At this time, the second conductive strip 94 on the reset plate 32 just connects with the second conductive sheet 93. The two second clamping groups just clamp and fix the ground camshaft 5 left in the receiving groove 41. When the clamping mechanism releases the ground camshaft 5, the second clamping component 9 clamps and fixes the ground camshaft 5, and the reset component 3 cannot push the camshaft 5 to be ground to the outlet end of the receiving groove 41. The box body 4 continues to move forward to the shaft receiving component. At this time, the spherical block 82 is squeezed by the camshaft 5 to be ground or the push rod 211 at the inner end of the groove 27 of the shaft storage component 2. Then the second electromagnet is de-energized, the clamping effect of the second clamping component 9 on the ground camshaft 5 disappears, and the ground camshaft 5 falls vertically onto the shaft receiving component.

[0048] In the above embodiments, clearance openings 36 are provided on the reset plate 32 at the positions corresponding to the first arc-shaped clamping plate 67 and the second arc-shaped clamping plate 92.

[0049] In one feasible implementation, the shaft assembly includes a chain conveyor. The worktable 1 has a material leakage hole 17 in front of the clamping mechanism. The chain conveyor is located below the worktable 1. Several collection bags are spaced apart on the chain conveyor. Each collection bag is used to hold a ground camshaft 5. As the chain conveyor moves, the opening of the collection bag is located just below the material leakage hole 17. The ground camshaft 5, which falls vertically from the receiving groove 41, enters the collection bag and is conveyed to the next process.

[0050] In other feasible embodiments, the receiving assembly includes a receiving plate and a guide rod. A material leakage hole 17 is opened in front of the clamping mechanism on the worktable 1. The receiving plate is located at the material leakage hole 17, and its surface is inclined. A return spring is fixed to the bottom of the receiving plate. A mounting plate is provided at the bottom of the worktable 1, and an arc-shaped groove is opened on the mounting plate. The guide rod slides through the arc-shaped groove, and another return spring is provided between the end of the guide rod away from the receiving plate and the mounting plate. When the ground camshaft 5 falls onto the receiving plate through the material leakage hole 17, the camshaft 5 presses down on the receiving plate until it is completely below the worktable 1. At this time, under the action of the inclined surface of the receiving plate, the ground camshaft 5 tilts and falls onto the guide rod. Guided by the guide rod, it falls downwards and finally rolls horizontally. A collecting device or conveyor belt can be set at the rolling point. Under the action of the return spring, the receiving plate and guide rod return to their original positions to collect the next ground camshaft 5.

[0051] In the above embodiment, the elasticity of the second elastic protrusion 42 is less than that of the first elastic protrusion 29, so as to ensure that the camshaft 5 to be ground in the storage shaft assembly 2 can smoothly enter the receiving groove 41. The shape of the correction groove 35 on the reset plate 32 matches the shape of the cam on the camshaft 5. When the camshaft 5 to be ground enters the receiving groove 41, the correction groove 35 can correct the angle of the camshaft 5 to be ground, so that the clamping mechanism can smoothly and securely clamp the camshaft 5 to be ground.

[0052] When using the upper shaft device for a vertical grinding machine with a camshaft 5 in this embodiment, firstly, the cylinder 15 extends and drives the housing 4 to move forward. When the housing 4 moves to the shaft storage assembly 2, the camshaft 5 to be ground at the outermost end of the slide groove 27 enters the receiving groove 41 and squeezes the reset plate 32 and the second spring 33. At this time, the housing 4 pushes the camshaft 5 to be ground, except for the outermost end, inward towards the inclined surface 43 of the shaft receiving assembly, to prevent the inner camshaft 5 from blocking the housing 4 from continuing to move. The camshaft 5 to be ground at the inner end of the slide groove 27 or the push rod 211 squeezes the pressing block 72. The first electromagnet 63 is energized so that the first arc-shaped clamping plate 67 clamps and fixes the camshaft 5 to be ground located in the receiving groove 41, so that it will not fall vertically. The housing 4 continues to move forward until the outermost camshaft 5 to be ground passes through the first elastic protrusions 29 on the left and right sides of the slot 28, so that the camshaft 5 to be ground is left in the receiving groove 41. When the box 4 moves to the clamping mechanism, the ground camshaft 5 on the clamping mechanism will be squeezed into the receiving groove 41, and push the camshaft 5 to be ground and the reset assembly 3 to move away from the clamping mechanism. At this time, the second conductive strip 94 and the second conductive sheet 93 are connected, and the second clamping assembly 9 clamps and fixes the ground camshaft 5 so that it will not fall vertically.

[0053] Subsequently, the vertical grinding machine drives the first clamping member 12 and the second clamping member 13 to move away from each other through a pneumatic or hydraulic system. The first clamping member 12 and the second clamping member 13 release their clamping of the ground camshaft 5, and the box body 4 continues to move forward to above the material discharge hole 17. At this time, the spherical block 82 is just squeezed by the camshaft 5 to be ground or the push rod 211 in the slide groove 27. The spherical block 82 separates the second conductive strip 94 from the second conductive sheet 93 through the push rod 84 and the lever 85. The second clamping assembly 9 releases the ground camshaft 5, allowing it to fall naturally. After passing through the material discharge hole 17, it is collected and transferred by the shaft receiving assembly. The second spring 33 pushes the camshaft 5 to be ground to the outlet end of the receiving groove 41.

[0054] Finally, the box 4 moves back to the clamping mechanism. The vertical grinder controls the first clamping member 12 and the second clamping member 13 to move closer to each other, clamping both ends of the camshaft 5 to be ground. The box 4 continues to move back, and the clamped and fixed camshaft 5 pushes open the elastic left clamping plate 671 of the first arc-shaped clamping plate 67, realizing the separation from the first arc-shaped clamping plate 67. The first box 4 continues to move back until the box 4 separates from the shaft storage assembly 2. The pressing block 72 is no longer squeezed and returns to its original position under the action of the fifth spring 73. The first electromagnet 63 is de-energized, and the first arc-shaped clamping plate 67 is reset.

[0055] Example 2: Figure 12As shown, a camshaft 5 production line of the present invention includes an input shaft conveying unit, a robotic arm unit, a grinding machine unit, a gear hobbing unit, a gear shaving unit, a quenching unit, an external grinding unit, and an output shaft unit. Through the cooperation of the input shaft conveying unit, the robotic arm unit, the grinding machine unit, the gear hobbing unit, the gear shaving unit, the quenching unit, the external grinding unit, and the output shaft unit, the efficient and intelligent production of camshaft 5 is achieved.

[0056] In this embodiment of the camshaft 5 production line, during operation, the feed shaft conveying unit transports the rough blank camshaft to be processed to the grinding unit. A robotic arm unit then places the rough blank camshaft sequentially onto the grinding unit, where it is machined into a camshaft 5 rough blank. After the camshaft 5 rough blank is processed, the second transmission component of the gear hobbing unit sequentially performs gear hobbing on the camshaft 5. After the gear hobbing is completed, the robotic arm unit removes the hobbed camshaft 5. The hobbed camshaft 5 is then transferred to the gear shaving unit via the robotic arm unit to remove burrs from the gears. It is then transferred to the quenching unit via the robotic arm unit to quench the entire camshaft 5. After quenching, it is transferred to the external grinding unit via the robotic arm unit for further grinding. Finally, it is transferred to the output shaft unit to output the processed camshaft 5.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A camshaft upper shaft device for a vertical grinding machine, characterized in that: The invention includes a fixed plate vertically mounted on the worktable of a vertical grinding machine, wherein a clamping mechanism is slidably disposed on the fixed plate. The fixed plate is characterized by having a drive assembly and an upper spindle assembly, and the worktable has a spindle storage assembly. The upper spindle assembly includes a housing, which is connected to the drive assembly. A receiving groove is provided at one end of the housing near the clamping mechanism, and a reset assembly, a first spindle clamping mechanism, and a second spindle clamping mechanism are disposed within the receiving groove. A spindle receiving assembly is also provided on the worktable. The reset assembly includes a rod and a reset plate. The rod passes through the box body and a second spring is sleeved on the rod body. One end of the second spring is connected to the box body and the other end is connected to the reset plate. The reset plate is provided with a plurality of correction blocks and correction slots are formed on the correction blocks. The first clamping mechanism includes first clamping components symmetrically arranged on the left and right sides of the receiving groove. The first clamping components are located at the outlet end of the receiving groove and are slidably connected to the box body. The first clamping components include a movable seat. The movable seat has a first cavity inside. A first magnetic block is slidably connected in the first cavity. A first clamping rod is fixedly connected to the outer end of the first magnetic block. The outer end of the first clamping rod extends through the cavity wall of the first cavity into the receiving groove. A first arc-shaped clamping plate is fixed to one end of the first clamping rod in the receiving groove. A first electromagnet is embedded in the cavity wall of the first cavity. A third spring is fitted on the surface of the first clamping rod. One end of the third spring is fixedly connected to the first magnetic block, and the other end is fixedly connected to the cavity wall of the first cavity. The portion of the first arc-shaped clamp near the outlet end of the receiving groove is made of an elastic material; A battery is installed inside the side wall of the box near the fixed plate, and a groove is provided on the surface of the side wall away from the fixed plate. A pressing block is slidably embedded in the groove. A fifth spring is provided between the inner end of the pressing block and the groove wall, and the outer end protrudes out of the groove. The two ends of the fifth spring are fixedly connected to the pressing block and the groove wall, respectively. A pair of first conductive plates are embedded in the two side walls of the groove. A first conductive strip is embedded in the inner end of the pressing block. The first conductive plates are electrically connected to the first electromagnet and the output end of the battery through wires. The second clamping mechanism and the first clamping mechanism are arranged vertically at intervals. The second clamping mechanism includes second clamping components symmetrically arranged on the left and right sides of the receiving groove. The second clamping components are located at the outlet end of the receiving groove. The side walls on both sides of the receiving groove are provided with second cavities. The second clamping components include a second electromagnet embedded in the cavity wall of the second cavity and a second magnetic block slidably installed in the second cavity. The outer end of the second magnetic block is fixedly connected to a second clamping rod. The outer end of the second clamping rod extends through the cavity wall of the second cavity into the receiving groove. A second arc-shaped clamping plate is fixed to one end of the second clamping rod in the receiving groove. A sixth spring is fitted on the surface of the second clamping rod. One end of the sixth spring is fixedly connected to the second magnetic block, and the other end is fixedly connected to the cavity wall of the second cavity. A pair of second conductive plates are embedded in the side walls on both sides of the receiving groove. A second conductive strip is provided on the reset plate. The second conductive plates are electrically connected to the second electromagnet and the output end of the battery through wires. The pressing block has an installation groove on one end surface away from the outlet end of the receiving groove. A spherical block is slidably embedded in the installation groove. The spherical block protrudes outside the installation groove. A seventh spring is provided between the inner end of the spherical block and the groove wall of the installation groove. The two ends of the seventh spring are fixedly connected to the spherical block and the groove wall of the installation groove, respectively. A push rod is fixed to the inner end of the spherical block. The other end of the push rod passes through the groove wall of the installation groove and the groove wall in sequence and extends into the receiving groove. A lever is inclinedly arranged in the receiving groove. The middle part of the lever is rotatably mounted on the side wall of the receiving groove. One end of the lever is hinged to the end of the push rod located in the receiving groove, and the other end forms a suspended end and is located at the position of the second conductive sheet.

2. The upper shaft device for a vertical camshaft grinding machine according to claim 1, characterized in that: The storage shaft assembly includes a vertically mounted and rotatable shaft on a workbench. The shaft is located on one side of the housing. An upper sleeve and a lower sleeve are fixedly sleeved on the shaft. Several support plates are arranged circumferentially on the lower sleeve. A lower plate is provided above each support plate on the lower sleeve. An upper plate is provided on the upper sleeve corresponding to each lower plate. A sliding groove is provided on both the lower and upper plates. A slot is provided at the end of the sliding groove away from the shaft. A first elastic protrusion is provided at both ends of the slot. A push rod and a first spring are provided at the end of the sliding groove near the shaft. One end of the first spring is fixedly connected to the upper / lower sleeve, and the other end is fixedly connected to the push rod.

3. The upper shaft device for a vertical camshaft grinding machine according to claim 1, characterized in that: Several second elastic protrusions are provided on the left and right sides of the outlet end of the receiving groove, and an inclined surface is provided on the side of the box away from the fixed plate.

4. The upper shaft device for a vertical camshaft grinding machine according to claim 1, characterized in that: The side walls on both sides of the receiving groove are provided with dovetail grooves. The movable seat is slidably embedded in the dovetail groove. A fourth spring is provided in the dovetail groove. One end of the fourth spring is fixedly connected to the groove wall of the dovetail groove, and the other end is fixedly connected to the movable seat.

5. A camshaft production line, characterized in that: The upper shaft device as described in any one of claims 1-4 is used.

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