High efficiency grinding apparatus with easy access

Abstract

The application relates to a high-efficiency grinding device with easy material taking, which comprises a machine table, a positioning disc arranged on the machine table, and a liftable grinding disc arranged above the positioning disc, wherein a driving shaft is arranged at the center of the positioning disc, a driving gear is fixedly sleeved at the top end of the driving shaft, a plurality of workpiece discs are uniformly distributed in a circle on the positioning disc, a through storage opening is arranged on the workpiece disc and used for placing a workpiece, gear teeth are arranged on the outer periphery of the workpiece disc and engaged with the driving gear, a connecting shaft is arranged on the outer periphery of the driving shaft and connected with the center of the workpiece disc, the connecting shaft supports the workpiece disc to ensure that the outer periphery of the workpiece disc is stably engaged with the driving gear, a liftable material pushing mechanism is arranged on the outer periphery of the connecting shaft, a giving-up hole is arranged on the positioning disc and opposite to the storage opening, and the material pushing mechanism pushes out from the giving-up hole by rising to push the workpiece out from the storage opening. The application has the advantages and effects that the workpiece can be conveniently taken out after being ground.

Description

Technical Field

[0001] This invention relates to the field of grinding technology, and more specifically to a high-efficiency grinding device that is easy to handle materials. Background Technology

[0002] Metal workpieces are generally processed by casting. During the casting process, burrs may be generated on the workpiece due to factors such as the impact of casting pressure, insufficient clamping force of the equipment, and mold precision. Therefore, after the workpiece is formed, the end face of the workpiece needs to be ground by grinding equipment to make the end face of the workpiece smooth.

[0003] For example, Chinese patent document CN223834253U discloses a bearing cover end face grinding device, including a grinding box and a grinding disc movably disposed above the grinding box. The grinding box has an annular grinding shell at its upper end, an elliptical plate rotatably disposed inside the annular grinding shell, and multiple gears movably disposed inside the annular grinding shell. Multiple storage holes for storing bearing covers are opened through the upper end of the gears. A toothed ring is fixedly disposed on the outer side of the elliptical plate. The toothed ring and the gear mesh with each other. A grinding motor is fixedly disposed inside the grinding box.

[0004] In the above technical solution, multiple bearing covers can be ground simultaneously by setting multiple gears and storage holes on the gears. Multiple gears are driven to rotate by the gear ring, which can further improve the grinding efficiency when grinding multiple bearing covers at the same time. The bearing covers can be ground on both sides by setting an annular grinding shell and a grinding disc.

[0005] To ensure that the workpiece to be ground can rotate precisely following the rotation of the gear, the specifications of the storage hole must be adapted to the specifications of the workpiece, that is, the outer circumference of the workpiece can be tightly attached to the inner circumference of the storage hole. Since sandblasting coolant is required during the grinding process, the surface of the workpiece is relatively wet after grinding. Furthermore, because the outer circumference of the workpiece is tightly attached to the inner circumference of the storage hole, there is no point of force when the workpiece needs to be removed from the storage hole, making it very inconvenient to remove the workpiece. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an efficient grinding device that is easy to remove after grinding.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an efficient grinding device that is easy to handle, comprising a machine base, a positioning plate on the machine base, a liftable grinding plate above the positioning plate, a drive shaft at the center of the positioning plate, a drive gear fixedly mounted on the top of the drive shaft, multiple workpiece discs evenly distributed circumferentially on the positioning plate, a through storage opening on each workpiece disc for placing workpieces, teeth on the outer periphery of each workpiece disc meshing with the drive gear, a connecting shaft on the outer periphery of the drive shaft connecting to the center of the workpiece discs to support the workpiece discs and ensure stable meshing between the outer periphery of the workpiece discs and the drive gear, a liftable ejector mechanism on the outer periphery of the connecting shaft, and a clearance hole on the positioning plate that is opposite to the storage opening. The ejector mechanism pushes the workpiece out of the storage opening by rising out of the clearance hole.

[0008] The present invention is further configured such that: the top end of the connecting shaft is provided with an axially extending through groove, the center of the workpiece disk is provided with a through connecting hole, and a locking device is provided between the connecting hole and the through groove. The locking device achieves a quick connection between the workpiece disk and the connecting shaft by pressing and releasing.

[0009] The invention is further configured such that: the locking device includes a locking male head fixed to the center of the workpiece disc and a locking female head embedded in the through groove; the locking male head has a through opening; a retractable locking rod is provided in the through opening; a wedge-shaped top is provided at the bottom end of the locking rod; the outer periphery of the wedge-shaped top gradually shifts towards the axis towards the top of the locking rod to form a pressing peripheral wall; a locking steel ball is provided between the locking rod and the inner wall of the locking male head; the peripheral wall of the locking male head has a top outlet for the locking steel ball to be partially ejected; a clearance annular groove is provided on the outer periphery of the locking rod to connect with one end of the wedge-shaped top; a locking groove is provided in the locking female head; the peripheral wall of the locking groove has a coupling side wall adapted to the pressing peripheral wall; when the locking rod is reset, the wedge-shaped top pushes the locking steel ball out from the top outlet, so that the locking steel ball abuts between the coupling side wall and the pressing peripheral wall, thereby achieving axial positioning between the connecting shaft and the workpiece disc.

[0010] The invention is further configured such that: a lock rod return spring is fitted around the outer periphery of the lock rod, and a positioning step is provided on the inner periphery of the locking male head for the lock rod return spring to abut against.

[0011] The present invention is further configured such that: a base is fixed at the bottom of the machine tool, the base is fitted around the outer periphery of the drive shaft, a support plate is provided around the outer periphery of the base, and the connecting shaft is rotatably connected to the support plate.

[0012] The present invention is further configured such that: the ejector mechanism includes a collar fitted around the outer periphery of the connecting shaft, the outer periphery of the collar is provided with a connecting flange, the clearance hole is provided with an ejector rod, a connecting rod is provided between the ejector rod and the collar, the two ends of the connecting rod are respectively connected to the bottom end of the ejector rod and the connecting flange, and a drive assembly is provided on the support plate, the drive assembly being used to drive the collar to move axially along the connecting shaft.

[0013] The present invention is further configured such that: the driving component includes a cylinder, a push block is installed at the output end of the cylinder, the push block is provided with an arc-shaped push surface, the bottom end of the collar is provided with a transmission rod extending to the bottom of the connecting shaft, the end of the transmission rod is embedded with a transmission steel ball, and the transmission steel ball can be coupled with the push surface.

[0014] The present invention is further configured such that: a positioning flange is provided on the outer periphery of the connecting shaft, the positioning flange is located above the collar, a push rod return spring is provided between the positioning flange and the collar, and the push rod return spring is fitted on the outer periphery of the connecting shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By setting a liftable ejector mechanism on the outer periphery of the connecting shaft, after grinding is completed, the ejector mechanism rises and ejects from the clearance hole, pushing the workpiece upward from the storage port, avoiding the outer periphery of the workpiece from being tightly attached to the inner periphery of the storage hole, thereby achieving convenient material retrieval;

[0017] 2. By setting a locking device between the connecting hole and the through groove, the workpiece disc and the connecting shaft can be quickly connected by pressing and releasing, thereby enabling the quick assembly and disassembly of the workpiece disc for replacement according to different workpiece specifications;

[0018] 3. By setting the relief opening in an arc shape, after the workpiece is ground by the rotation of the workpiece disc, the ejector rod can enter the storage opening more quickly after ejection without the relief opening being aligned with the center of the storage opening, thus pushing the workpiece out. This further improves the convenience of workpiece retrieval. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the machine tool of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure between the positioning disk, the workpiece disk, and the drive gear in this invention;

[0022] Figure 4 This is a schematic diagram of the overall structure of the ejector mechanism in this invention;

[0023] Figure 5 This is a cross-sectional structural diagram of the top material mechanism in this invention;

[0024] Figure 6 This is a partial enlarged structural diagram of point A in the present invention.

[0025] In the diagram: 1. Machine base; 2. Positioning plate; 21. Clearance hole; 3. Grinding plate; 4. Drive shaft; 5. Drive gear; 6. Workpiece plate; 61. Storage port; 7. Connecting shaft; 71. Positioning flange; 71. Locking male head; 81. Top outlet; 811. Positioning step; 812. Locking female head; 821. Locking groove; 83. Locking rod; 831. Wedge-shaped top head; 832. Clearance ring groove; 84. Locking steel ball; 91. Collar; 911. Connecting flange; 92. Top rod; 93. Connecting rod; 94. Cylinder; 95. Push block; 96. Transmission rod; 97. Transmission steel ball; 10. Locking rod return spring; 11. Base; 12. Support plate; 13. Top rod return spring. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] like Figures 1 to 6As shown, this invention discloses an efficient grinding device that is easy to handle. It includes a machine base 1, on which a positioning disk 2 is fixedly mounted. A liftable grinding disk 3 is positioned above the positioning disk 2. A drive shaft 4 is vertically mounted at the center of the positioning disk 2, and a drive gear 5 is fixed to the top of the drive shaft 4 via a keyway. Multiple workpiece disks 6 are evenly distributed circumferentially on the positioning disk 2. Each workpiece disk 6 has multiple through-holes 61 for placing workpieces to be ground. The outer circumference of the workpiece disk 6 is machined with teeth that mesh with the drive gear 5. A connecting shaft 7 is provided on the outer circumference of the drive shaft 4, connecting to the center of the workpiece disk 6, thereby providing stable support for the workpiece disk 6 and ensuring stable meshing between the outer circumference of the workpiece disk 6 and the drive gear 5. A liftable top-feeding mechanism is also provided on the outer circumference of the connecting shaft 7, and a clearance hole 21 is provided on the positioning disk 2 that aligns with the storage hole 61. After grinding is completed, the ejector mechanism rises and ejects the workpiece from the relief hole 21, pushing the workpiece upward from the storage port 61, thus avoiding the outer circumference of the workpiece from being tightly attached to the inner circumference of the storage hole, thereby achieving convenient material removal.

[0029] In this embodiment, the structure connecting the connecting shaft 7 to the center of the workpiece disk 6 is as follows: an axially extending through groove is provided at the top of the connecting shaft 7, and a through connecting hole is provided at the center of the workpiece disk 6. A locking device is provided between the connecting hole and the through groove. This locking device can achieve quick connection between the workpiece disk 6 and the connecting shaft 7 through pressing and releasing operations, thereby enabling quick assembly and disassembly of the workpiece disk 6 for replacement according to different workpiece specifications.

[0030] Specifically, the locking device includes a locking male head 81 fixed to the center of the workpiece disk 6 and a locking female head 82 embedded in a through groove. The locking male head 81 has a through opening, within which a retractable locking rod 83 is installed. The bottom end of the locking rod 83 has a wedge-shaped top 831, the outer periphery of which gradually offsets towards the axis towards the top of the locking rod 83, forming a pressing peripheral wall. A locking steel ball 84 is disposed between the locking rod 83 and the inner wall of the locking male head 81. The peripheral wall of the locking male head 81 has a top outlet 811 for partially ejecting the locking steel ball 84. The outer periphery of the locking rod 83 also has a clearance ring groove 832 that connects to one end of the wedge-shaped top 831. The locking female head 82 has a locking groove 821 inside, and the peripheral wall of the locking groove 821 is machined with a coupling sidewall adapted to the pressing peripheral wall. When the locking rod 83 is in the reset state, the wedge-shaped top 831 pushes the locking steel ball 84 outward from the top outlet 811, so that the locking steel ball 84 simultaneously abuts against the coupling side wall and the top pressure peripheral wall, thereby achieving axial positioning between the connecting shaft 7 and the workpiece disk 6.

[0031] Therefore, when it is necessary to connect and fix the workpiece disc 6 to the connecting shaft 7, first press the locking rod 83 so that the clearance ring groove 832 is aligned with the locking steel ball 84. This allows the locking steel ball 84 to roll into the clearance ring groove 832 and retract from the top outlet 811. At this time, the locking male head 81 can be inserted into the locking female head 82. Then, by releasing the locking rod 83, the locking rod 83 is reset, thus achieving axial positioning between the connecting shaft 7 and the workpiece disc 6. In addition, to ensure the reliability of locking, a locking rod return spring 10 is fitted on the outer periphery of the locking rod 83, and a positioning step 812 is provided on the inner periphery of the locking male head 81 for the locking rod return spring 10 to abut against. The locking rod return spring 10 can apply axial force to the locking rod 83 to prevent the locking rod 83 from malfunctioning and ensure the stability of the connection between the connecting shaft 7 and the workpiece disc 6. At the same time, when the locking rod 83 is released, it can automatically drive the locking rod 83 to reset.

[0032] In addition, a positioning groove is provided in the center of the workpiece tray 6, and an integrally formed positioning ring is provided on the outer periphery of the top of the locking male head 81. Thus, when the locking male head 81 is installed in the center of the workpiece tray 6, the bottom end face of the positioning ring can abut against the bottom of the positioning groove to position the installation position of the locking male head 81, thereby facilitating the installation of the locking male head 81. Then, the positioning ring is fastened to the bottom of the positioning groove by the corresponding locking components.

[0033] In this embodiment, a base 11 is fixed at the bottom of the machine base 1. The base 11 is fitted around the outer periphery of the drive shaft 4, and a support plate 12 is mounted on the outer periphery of the base 11. The connecting shaft 7 is rotatably connected to the support plate 12 via bearings. The ejector mechanism includes a collar 91 fitted around the outer periphery of the connecting shaft 7. The collar 91 and the connecting shaft 7 can rotate relative to each other. A connecting flange 911 is provided on the outer periphery of the collar 91. A push rod 92 is slidably fitted in the clearance hole 21 of the positioning plate 2. The push rod 92 is connected to the collar 91 via a connecting rod 93. The two ends of the connecting rod 93 are respectively connected to the bottom end of the push rod 92 and the connecting flange 911. A drive assembly is provided on the support plate 12 to drive the collar 91 to move axially along the connecting shaft 7.

[0034] Specifically, the drive assembly includes a cylinder 94, with a push block 95 mounted on the output end of the cylinder 94. The push block 95 has an arc-shaped push surface machined on it. A transmission rod 96 extending below the connecting shaft 7 is fixed to the bottom end of the collar 91. A transmission steel ball 97 is embedded at the end of the transmission rod 96, and the transmission steel ball 97 can couple with the push surface. When the cylinder 94 is actuated, the push surface pushes the collar 91 upward through the transmission steel ball 97, thereby driving the push rod 92 located below the same workpiece disc 6 to simultaneously push out the workpiece, effectively improving the workpiece picking efficiency. Furthermore, the above structure allows the cylinder 94 to be installed horizontally, thus effectively utilizing the space between the connecting shaft 7 and the drive shaft 4, resulting in a more compact overall structure and a more rational design.

[0035] The bottom end of the transmission rod 96 is provided with a first groove, and the bottom end of the transmission rod 96 is connected to a detachable cover plate by a locking member. The cover plate is provided with a second groove, the diameter of which is smaller than that of the transmission steel ball 97. This allows a portion of the transmission steel ball 97 to extend out from the second groove and cooperate with the push block 95, while preventing the transmission steel ball 97 from detaching. The first groove is adapted to the transmission steel ball 97, allowing the transmission steel ball 97 to rotate freely within the first groove. The clearance opening is arc-shaped, so that after the workpiece is ground by the rotation of the workpiece disk 6, the center of the clearance opening does not need to be aligned with the center of the storage opening 61. This allows the push rod 92 to enter the storage opening 61 more quickly after being pushed out, thus pushing the workpiece out. This further improves the convenience of workpiece retrieval.

[0036] Furthermore, a positioning flange 71 is provided on the outer periphery of the connecting shaft 7. This positioning flange 71 is located above the collar 91, and a push rod return spring 13 is fitted between the positioning flange 71 and the collar 91. When the collar 91 rises, the spring is compressed. After the cylinder 94 returns to its original position, the spring force pushes the collar 91 down, causing the push rod 92 to retract into the clearance hole 21, below the upper surface of the positioning plate 2, in preparation for the next grinding, making the overall operation more consistent.

[0037] In actual use, the appropriate workpiece disc 6 is quickly installed on the connecting shaft 7 using the locking device, and the workpiece to be ground is placed into the storage port 61. Then, the hydraulic cylinder drives the grinding disc 3 to descend, the corresponding motor drives the drive shaft 4 to rotate, and the drive gear 5 drives each workpiece disc 6 to rotate, so that the workpiece on the workpiece disc 6 can fully contact the grinding disc 3. After grinding is completed, the grinding disc 3 rises, and the cylinder 94 drives the ejector mechanism to eject the workpiece, which can then be easily removed by the operator.

[0038] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A high-efficiency grinding device that is easy to handle materials, comprising a machine base, a positioning plate on the machine base, and a liftable grinding plate above the positioning plate, characterized in that, The positioning disk has a drive shaft at its center, and a drive gear is fixedly mounted on the top of the drive shaft. The positioning disk has multiple workpiece disks evenly distributed around its circumference, and each workpiece disk has a through storage opening for placing workpieces. The outer circumference of each workpiece disk has teeth that mesh with the drive gear. The outer circumference of the drive shaft has a connecting shaft that connects to the center of the workpiece disk to support the workpiece disk and ensure stable meshing between the outer circumference of the workpiece disk and the drive gear. The outer circumference of the connecting shaft has a liftable ejector mechanism. The positioning disk has a clearance hole that is opposite to the storage opening. The ejector mechanism pushes the workpiece out of the storage opening by rising out of the clearance hole.

2. The efficient grinding equipment with easy material handling according to claim 1, characterized in that, The top end of the connecting shaft is provided with an axially extending through groove, and the center of the workpiece disc is provided with a through connecting hole. A locking device is provided between the connecting hole and the through groove. The locking device achieves a quick connection between the workpiece disc and the connecting shaft by pressing and releasing.

3. The efficient grinding equipment with easy material handling according to claim 2, characterized in that, The locking device includes a locking male head fixed to the center of the workpiece disc and a locking female head embedded in a through groove. The locking male head has a through opening, and a retractable locking rod is provided in the through opening. The bottom end of the locking rod has a wedge-shaped top. The outer periphery of the wedge-shaped top gradually shifts towards the axis towards the top of the locking rod to form a pressing peripheral wall. A locking steel ball is provided between the locking rod and the inner wall of the locking male head. The peripheral wall of the locking male head has a top outlet for the locking steel ball to be partially ejected. The outer periphery of the locking rod has a clearance annular groove that connects to one end of the wedge-shaped top. The locking female head has a locking groove. The peripheral wall of the locking groove has a coupling side wall that matches the pressing peripheral wall. When the locking rod is reset, the wedge-shaped top pushes the locking steel ball out from the top outlet, so that the locking steel ball abuts between the coupling side wall and the pressing peripheral wall, thereby achieving axial positioning between the connecting shaft and the workpiece disc.

4. The efficient grinding equipment with easy material handling according to claim 3, characterized in that, A lock rod return spring is fitted around the outer periphery of the lock rod, and a positioning step is provided on the inner periphery of the locking male head for the lock rod return spring to abut against.

5. A high-efficiency grinding device for easy material handling according to claim 2 or 4, characterized in that, The machine base is fixed at the bottom, the base is fitted around the outer periphery of the drive shaft, and a support plate is provided around the outer periphery of the base. The connecting shaft is rotatably connected to the support plate.

6. The efficient grinding equipment with easy material handling according to claim 5, characterized in that, The ejector mechanism includes a collar fitted around the outer periphery of the connecting shaft. The collar has a connecting flange on its outer periphery. A push rod is provided in the clearance hole. A connecting rod is provided between the push rod and the collar. The two ends of the connecting rod are respectively connected to the bottom end of the push rod and the connecting flange. A drive assembly is provided on the support plate. The drive assembly is used to drive the collar to move axially along the connecting shaft.

7. The efficient grinding equipment for easy material handling according to claim 6, characterized in that, The drive assembly includes a cylinder, a push block is installed at the output end of the cylinder, the push block is provided with an arc-shaped push surface, the bottom end of the collar is provided with a transmission rod extending to the bottom of the connecting shaft, the end of the transmission rod is embedded with a transmission steel ball, and the transmission steel ball can be coupled with the push surface.

8. The efficient grinding equipment for easy material handling according to claim 7, characterized in that, The connecting shaft has a positioning flange on its outer periphery, which is located above the collar. A push rod return spring is provided between the positioning flange and the collar, and the push rod return spring is fitted on the outer periphery of the connecting shaft.

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