An external cylindrical grinder auxiliary centering device
By using a laser pointer and a calibration center to center and calibrate the workpiece, combined with an electric slide rail and a motor-driven grinding disc, the problems of inaccurate grinding position and poor workpiece fixation in external cylindrical grinding machines are solved, achieving precise grinding and stable fixation, and improving the grinding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGYANG DINGHENG ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-03
Smart Images
Figure CN224445453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding machine technology, and in particular to an auxiliary centering device for an external cylindrical grinding machine. Background Technology
[0002] External cylindrical grinding machines are used to process the outer surfaces and shoulder end faces of workpieces formed by the generatrices of cylindrical, conical, or other shapes. When positioning cylindrical workpieces, existing external cylindrical grinding machines require one end of the workpiece to be positioned with a chuck, and the other end to be pressed against a center. This achieves clamping and positioning of the cylindrical workpiece under the action of the chuck and center.
[0003] In the prior art, such as the external cylindrical grinding machine disclosed in Chinese Patent Publication No. CN113442005B, a protective isolation cover is movably connected to the upper middle part of the equipment housing. A control panel is fixedly connected to one side of the upper end of the equipment housing. An air inlet is opened on the upper side of the middle rear end of the equipment housing. A housing door is movably connected to the lower rear end of the equipment housing. A partition is fixedly connected to the middle of the interior of the equipment housing, and a slide rail is fixedly connected to the middle of the upper end of the partition. The external cylindrical grinding machine of the present invention can blow sputtered metal debris and metal powder into the interior of the through hole. The metal debris and metal powder mixed in the air can be filtered through the filter screen to prevent metal powder from drifting out and causing damage to the operator's respiratory system. Furthermore, the metal debris inside the collection box can be collected and recycled.
[0004] However, existing cylindrical grinding machines cannot calibrate the grinding position of the workpiece when grinding, resulting in poor grinding effect. At the same time, the existing cylindrical grinding machines do not have a good fixation effect on the workpiece, which makes the workpiece prone to displacement during the grinding process. Therefore, the above problems need to be improved. Utility Model Content
[0005] The purpose of this invention is to provide an auxiliary centering device for an external cylindrical grinding machine, which has the effect of centering and calibrating the workpiece.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an auxiliary centering device for an external cylindrical grinding machine, comprising a housing, a grinding table disposed inside the housing, a first mounting block fixedly connected to one side of the outer side of the housing, a mounting buckle fixedly connected to the first mounting block, a laser pointer disposed inside the mounting buckle, a second mounting block fixedly connected to the other side of the outer side of the housing, a calibration center fixedly connected to the top of the second mounting block, a ring fixedly fixed to the outer side of the housing, a cutting frame fixedly connected to the top of the ring, an electric slide rail fixedly mounted on the inner top wall of the cutting frame, a movable shell fixedly connected to the output end of the electric slide rail, a motor fixedly mounted on the outer side of the movable shell, a grinding disc fixedly connected to the output end of the motor, inner rails fixedly connected to both sides of the inner wall of the cutting frame, and sliders fixedly connected to both sides of the outer side of the movable shell, the sliders being slidably connected inside the inner rails.
[0007] By adopting the above technical solution, the laser pointer is installed on the top of the first mounting block via a mounting clip, and the calibration center is fixed on the top of the second mounting block. The laser pointer and the calibration center are positioned symmetrically on both sides of the machine housing, so that the laser beam irradiates the inside of the calibration center and the centerline of the grinding table, ensuring uniform symmetry on both sides of the grinding table. The operator places the workpiece on top of the grinding table and irradiates the area to be ground with the laser pointer, thereby centering and calibrating the grinding position of the workpiece, improving the grinding accuracy during the grinding process. The cutting frame is fixed to the outside of the machine housing via a ring. The electric slide rail is activated, causing the moving shell to move. The motor is started, causing the grinding disc to rotate. By rotating and displacing the grinding disc, the grinding disc contacts the workpiece, achieving the grinding effect. During the displacement of the moving shell, the slider will move inside the inner rail, and the slider and the inner rail support the moving shell during the movement.
[0008] A further feature of this invention is that an anti-slip pad is fixedly connected to the top of the grinding table, and anti-slip particles are provided on the outside of the anti-slip pad.
[0009] By adopting the above technical solution, when grinding the workpiece, the workpiece is placed on top of the anti-slip mat, and the friction is increased by the anti-slip particles.
[0010] A further feature of this invention is that: both sides of the top of the grinding table are fixedly connected to a connecting frame, a pressure plate is rotatably connected inside the connecting frame, and a limit track is fixedly connected to the bottom of the pressure plate.
[0011] By adopting the above technical solution, the pressure plate is rotatably connected inside the connecting frame, thereby enabling the pressure plate to flip inside the connecting frame.
[0012] A further feature of this invention is that a cylinder is fixedly installed inside the grinding table, and a push rod is fixedly connected to the output end of the cylinder.
[0013] By adopting the above technical solution, the cylinder is activated, which in turn drives the push rod to extend and retract.
[0014] A further feature of this invention is that a limit block is hinged to one end of the push rod.
[0015] By adopting the above technical solution, the limiting block is connected to the end of the push rod, and the limiting block extends into the limiting track at the bottom of the pressure plate. At the same time, the extension and retraction of the push rod causes the limiting block to move inside the limiting track, thereby causing the limiting track to drive the pressure plate to flip. When the workpiece is placed on top of the anti-slip mat, the pressure plate applies pressure to the workpiece to achieve the effect of fixing the workpiece.
[0016] A further feature of this invention is that a pressure block is fixedly connected to the edge of the bottom of the pressure plate, and the bottom of the pressure block is provided with anti-slip texture.
[0017] By adopting the above technical solution, the pressure block comes into contact with the workpiece, and the anti-slip texture increases the friction to achieve an anti-slip effect.
[0018] A further feature of this invention is that columns are fixedly connected to both sides of the outer side of the casing.
[0019] By adopting the above technical solution, the column supports the casing, so that the casing can be supported on the base surface.
[0020] A further feature of this invention is that a positioning block is fixedly connected to the outer side of the column, and a screw pin is threadedly connected to the inside of the positioning block.
[0021] By adopting the above technical solution, the screw pin is threaded to the inside of the positioning block and extends into the base surface, thereby fixing the column and the housing to the base surface.
[0022] A further feature of this invention is that the number of columns is four, and the four columns are distributed in a circular array.
[0023] By adopting the above technical solution, four columns are distributed around the outside of the casing, improving the support effect.
[0024] A further feature of this invention is that the bottom of the grinding table is provided with heat dissipation holes, and the number of heat dissipation holes is several.
[0025] By adopting the above technical solution, the heat dissipation holes are used to dissipate heat from the cylinder inside the grinding table.
[0026] The beneficial effects of this utility model are:
[0027] 1. This utility model, through the arrangement of a housing, grinding table, first mounting block, mounting buckle, laser pointer, second mounting block, calibration handle, ring, cutting frame, electric slide rail, moving shell, motor, grinding disc, inner rail, and slider, allows the laser pointer to be mounted to the top of the first mounting block via the mounting buckle. The calibration handle is fixed to the top of the second mounting block. The laser pointer and calibration handle are positioned symmetrically on opposite sides of the outer surface of the housing, ensuring that the laser beam irradiates the inside of the calibration handle and the centerline of the grinding table, resulting in uniform symmetry on both sides of the grinding table. The operator places the workpiece on top of the grinding table. The laser pointer illuminates the area of the workpiece to be polished, allowing for centering and calibration of the polishing position, thus improving polishing accuracy. The cutting frame is fixed to the outside of the machine housing by a ring. Activating the electric slide rail moves the moving housing, and starting the motor drives the grinding disc to rotate. By rotating and displacing the grinding disc, it comes into contact with the workpiece, achieving the polishing effect. During the movement of the moving housing, the slider moves within the inner rail, and the slider and inner rail support the moving housing during movement.
[0028] 2. This utility model, through the arrangement of an anti-slip mat, connecting frame, pressure plate, limiting track, cylinder, push rod, limiting block, and pressure block, allows the workpiece to be placed on top of the anti-slip mat during grinding. The anti-slip particles increase friction. The pressure plate is rotatably connected to the inside of the connecting frame, allowing it to flip within the frame. Activating the cylinder causes the push rod to extend and retract. The limiting block is connected to the end of the push rod and extends into the limiting track at the bottom of the pressure plate. Simultaneously, the extension and retraction of the push rod causes the limiting block to move within the limiting track, which in turn causes the pressure plate to flip. When the workpiece is placed on top of the anti-slip mat, the pressure plate applies pressure to the workpiece, achieving a fixed effect. The pressure block contacts the workpiece, and the anti-slip texture increases friction, achieving an anti-slip effect. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of this utility model;
[0031] Figure 2This is a schematic diagram of the internal structure of the cutting frame of this utility model;
[0032] Figure 3 This is a schematic diagram of the internal structure of the grinding table of this utility model;
[0033] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.
[0034] In the diagram, 1. Housing; 2. Grinding table; 3. First mounting block; 4. Mounting buckle; 5. Laser pointer; 6. Second mounting block; 7. Calibration center; 8. Ring; 9. Cutting frame; 10. Electric slide rail; 11. Moving shell; 12. Motor; 13. Grinding disc; 14. Inner rail; 15. Slider; 16. Anti-slip pad; 17. Connecting frame; 18. Pressure plate; 19. Limiting rail; 20. Cylinder; 21. Push rod; 22. Limiting block; 23. Pressure block; 24. Column; 25. Positioning block; 26. Screw pin; 27. Heat dissipation hole. Detailed Implementation
[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0036] Reference Figure 1-4An auxiliary centering device for an external cylindrical grinding machine includes a housing 1, a grinding table 2 inside the housing 1, a first mounting block 3 fixedly connected to one side of the outer side of the housing 1, a mounting buckle 4 fixedly connected to the first mounting block 3, a laser pointer 5 inside the mounting buckle 4, a second mounting block 6 fixedly connected to the other side of the outer side of the housing 1, a calibration center 7 fixedly connected to the top of the second mounting block 6, a ring 8 fixedly fixed to the outer side of the housing 1, a cutting frame 9 fixedly connected to the top of the ring 8, an electric slide rail 10 fixedly mounted on the inner top wall of the cutting frame 9, a movable housing 11 fixedly connected to the output end of the electric slide rail 10, a motor 12 fixedly mounted on the outer side of the movable housing 11, a grinding disc 13 fixedly connected to the output end of the motor 12, and grinding discs 13 fixedly connected to both sides of the inner wall of the cutting frame 9. Slider 15s are fixedly connected to both sides of the inner rail 14 and the outer side of the movable housing 11. The slider 15s are slidably connected inside the inner rail 14. The laser pointer 5 is installed on the top of the first mounting block 3 via the mounting buckle 4. The calibration center 7 is fixed on the top of the second mounting block 6. The laser pointer 5 and the calibration center 7 are set on both sides of the outer side of the housing 1 and are symmetrical to each other, so that the rays generated by the laser pointer 5 irradiate the inside of the calibration center 7 and the rays generated by the laser pointer 5 irradiate the center line of the grinding table 2, so that the two sides of the grinding table 2 are uniformly symmetrical. The operator places the workpiece on the top of the grinding table 2 and irradiates the area of the workpiece to be ground with the laser pointer 5, so as to center and calibrate the grinding position of the workpiece, thereby improving the grinding accuracy of the workpiece during the grinding process. The cutting frame 9 is fixed to the outside of the machine housing 1 by the ring 8. The electric slide rail 10 is activated, causing the moving housing 11 to move. The motor 12 is activated, driving the grinding disc 13 to rotate. Through the rotation and displacement of the grinding disc 13, it contacts the workpiece, achieving the grinding effect. During the displacement of the moving housing 11, the slider 15 moves inside the inner rail 14, supporting the moving housing 11 during movement. An anti-slip pad 16 is fixedly connected to the top of the grinding table 2. Anti-slip particles are provided on the outside of the anti-slip pad 16. When grinding the workpiece, the workpiece is placed on top of the anti-slip pad 16, and the anti-slip particles increase friction. Both sides of the top of the grinding table 2 are fixedly connected to connecting frames 17. A pressure plate 18 is rotatably connected inside the connecting frame 17. A limit track 19 is fixedly connected to the bottom of the pressure plate 18. The pressure plate 18 is rotatably connected inside the connecting frame 17, allowing it to rotate within the frame. A cylinder 20 is fixedly installed inside the grinding table 2. A push rod 21 is fixedly connected to the output end of the cylinder 20. Activating the cylinder 20 causes the push rod 21 to extend and retract. A limit block 22 is hinged to one end of the push rod 21, and extends into the limit track 19 at the bottom of the pressure plate 18. Simultaneously, the extension and retraction of the push rod 21 causes the limit block 22 to move within the limit track 19.This causes the limiting track 19 to rotate the pressure plate 18. When the workpiece is placed on top of the anti-slip pad 16, the pressure plate 18 applies pressure to the workpiece, achieving the effect of fixing the workpiece. A pressure block 23 is fixedly connected to the bottom edge of the pressure plate 18. The bottom of the pressure block 23 has anti-slip texture. The pressure block 23 contacts the workpiece, and the anti-slip texture increases the friction to achieve the anti-slip effect. Columns 24 are fixedly connected to both sides of the outer side of the machine housing 1. The columns 24 support the machine housing 1, allowing it to be supported on the base surface. A positioning block 25 is fixedly connected to the side. A screw pin 26 is threaded into the interior of the positioning block 25 and extends into the base surface, thereby fixing the column 24 and the housing 1 to the base surface. There are four columns 24 arranged in a circular array around the perimeter of the housing 1, enhancing support. Several heat dissipation holes 27 are provided at the bottom of the grinding table 2 to dissipate heat from the cylinder 20 inside the grinding table 2.
[0037] In this invention, a laser pointer 5 is mounted to the top of the first mounting block 3 via a mounting clip 4, and a calibration core 7 is fixed to the top of the second mounting block 6. The laser pointer 5 and the calibration core 7 are positioned symmetrically on both sides of the outer casing 1, allowing the laser beam generated by the laser pointer 5 to irradiate the inside of the calibration core 7 and the centerline of the grinding table 2, ensuring uniform symmetry on both sides of the grinding table 2. The operator places the workpiece on top of the grinding table 2 and irradiates the area to be ground using the laser pointer 5, thus centering and calibrating the grinding position and improving grinding accuracy. The cutting frame 9 is fixed to the outer side of the casing 1 via a ring 8. The electric slide rail 10 is activated, causing the moving housing 11 to move. The motor 12 is activated, driving the grinding disc 13 to rotate. This rotation and displacement of the grinding disc 13 brings it into contact with the workpiece, achieving the grinding effect. During the displacement of the shell 11, the slider 15 will move inside the inner rail 14. The slider 15 and the inner rail 14 support the moving shell 11 during the movement. When grinding the workpiece, the workpiece is placed on top of the anti-slip pad 16. The anti-slip particles increase the friction. The pressure plate 18 is rotatably connected inside the connecting frame 17, so that the pressure plate 18 can flip inside the connecting frame 17. The cylinder 20 is activated, which drives the push rod 21 to extend and retract. The limiting block 22 is connected to the end of the push rod 21 and extends into the limiting track 19 at the bottom of the pressure plate 18. At the same time, the extension and retraction of the push rod 21 causes the limiting block 22 to move inside the limiting track 19, which in turn causes the limiting track 19 to drive the pressure plate 18 to flip. When the workpiece is placed on top of the anti-slip pad 16, the pressure plate 18 applies pressure to the workpiece to fix it. The pressure block 23 contacts the workpiece, and the anti-slip texture increases the friction to achieve the anti-slip effect.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An external cylindrical grinder auxiliary centering device comprising a housing (1), characterized in that: The housing (1) is equipped with a grinding table (2) inside. A first mounting block (3) is fixedly connected to one side of the housing (1). A mounting buckle (4) is fixedly connected to the first mounting block (3). A laser pointer (5) is installed inside the mounting buckle (4). A second mounting block (6) is fixedly connected to the other side of the housing (1). A calibration core (7) is fixedly connected to the top of the second mounting block (6). A ring (8) is fixedly fixed to the outside of the housing (1). A cutting frame is fixedly connected to the top of the ring (8). 9) An electric slide rail (10) is fixedly installed on the inner top wall of the cutting frame (9). A movable shell (11) is fixedly connected to the output end of the electric slide rail (10). A motor (12) is fixedly installed on the outside of the movable shell (11). A grinding disc (13) is fixedly connected to the output end of the motor (12). Inner rails (14) are fixedly connected to both sides of the inner wall of the cutting frame (9). Slider blocks (15) are fixedly connected to both sides of the outside of the movable shell (11). The sliders (15) are slidably connected inside the inner rails (14).
2. The centering device for an external cylindrical grinder according to claim 1, characterized in that: The top of the grinding table (2) is fixedly connected to an anti-slip pad (16), and the outside of the anti-slip pad (16) is provided with anti-slip particles.
3. The centering device for an external cylindrical grinder according to claim 1, characterized in that: The grinding table (2) has a connecting frame (17) fixedly connected to both sides of the top. The connecting frame (17) is rotatably connected to a pressure plate (18). The bottom of the pressure plate (18) is fixedly connected to a limit track (19).
4. The centering device for an external cylindrical grinder according to claim 1, characterized in that: A cylinder (20) is fixedly installed inside the grinding table (2), and a push rod (21) is fixedly connected to the output end of the cylinder (20).
5. The centering device for an external cylindrical grinder according to claim 4, characterized in that: One end of the push rod (21) is hinged to a limit block (22).
6. The centering device for an external cylindrical grinder according to claim 3, characterized in that: A pressure block (23) is fixedly connected to the bottom edge of the pressure plate (18), and the bottom of the pressure block (23) is provided with anti-slip texture.
7. The centering device for an external cylindrical grinder according to claim 1, characterized in that: The outer sides of the casing (1) are fixedly connected with columns (24).
8. The centering device for an external cylindrical grinder according to claim 7, characterized in that: A positioning block (25) is fixedly connected to the outside of the column (24), and a screw pin (26) is threadedly connected inside the positioning block (25).
9. The centering device for an external cylindrical grinder according to claim 7, characterized in that: The number of the columns (24) is four, and the four columns (24) are distributed in a ring array.
10. The centering device for an external cylindrical grinder according to claim 1, characterized in that: The bottom of the grinding table (2) is provided with heat dissipation holes (27), and the number of heat dissipation holes (27) is several.