A surface grinder that is easy to change materials

Abstract

This application relates to the field of surface grinding machine technology and discloses a surface grinding machine that facilitates material change, thereby solving the problem of low work efficiency caused by the long time wasted in changing workpieces. When placing the workpiece, the workpiece slides on a fixed component, and the workpiece pushes the stop bar and movable component to move. This causes the cleaning electromagnetic strip on the fixed component to clean the lower end face of the workpiece, and the cleaning electromagnetic strip on the movable component to clean the upper end face of the magnetic chuck. This simplifies the cleaning process of the magnetic chuck and the workpiece, thus speeding up the workpiece changeover. Furthermore, when the movable component moves, it pulls the strap between the movable and fixed components, causing the sliding frames, rotating shafts, and straps at both ends of the fixed and movable components to move towards the center. Simultaneously, the straps on both sides are parallel, creating a contrast between the straps and the edge of the workpiece, ensuring that the workpiece is placed flush and preventing workpiece tilting that would extend the grinding path of the grinding device, thus avoiding unnecessary grinding time.

Description

Technical Field

[0001] This application relates to the field of surface grinding technology, and more particularly to a surface grinding machine that is easy to change materials. Background Technology

[0002] A surface grinder is a machine tool used for precision grinding of flat or shaped surfaces of workpieces. It is widely used in machining, mold making, and tool production. Its core function is to perform high-precision, high-surface-quality machining on workpieces through the high-speed rotation of the grinding wheel in the grinding device and the precision feed of the motion device. A surface grinder generally includes a bed, motion device, fixing mechanism, grinding device, and control system. The fixing mechanism can be divided into magnetic chucks, mechanical clamps, vacuum chucks, and adhesive fixing, etc. When fixing magnetic workpieces, magnetic chucks are usually selected.

[0003] During the grinding process, some grinding debris falls off the workpiece and lands on the magnetic chuck. After grinding one side of the workpiece, it needs to be changed. During this process, the upper surface of the magnetic chuck and the ground surface of the workpiece need to be cleaned twice to prevent debris from remaining between the magnetic chuck and the workpiece and affecting the workpiece's levelness. However, when changing the workpiece or changing its surface, this cleaning process needs to be repeated. Each cleaning of the magnetic chuck and the workpiece wastes a considerable amount of time, greatly affecting the efficiency of workpiece changeover. Summary of the Invention

[0004] This application proposes a surface grinder that facilitates material change, which has the advantage of easy workpiece replacement, thereby solving the problem of low work efficiency caused by the long time wasted in workpiece replacement.

[0005] To achieve the above objectives, this application adopts the following technical solution: a surface grinder that facilitates material changing, comprising a bed, a motion device, a magnetic chuck, a grinding device, a control system, and a display system. The magnetic chuck has grooves on both sides, and its upper end is equipped with a cleaning mechanism for cleaning the lower surface of the workpiece and the upper surface of the magnetic chuck. The cleaning mechanism includes: a fixed component with sliders fixedly connected to both ends, the sliders being fixedly installed at one end of the groove; a movable component with sliders fixedly connected to both ends, the sliders being slidably installed within the groove; two cleaning electromagnetic strips, one embedded in the top of the fixed component and the other embedded in the bottom of the movable component; and a calibration mechanism for referencing the workpiece placement angle within the fixed and movable components.

[0006] Furthermore, the top of the fixing member is movably embedded with a plurality of arrayed ball bearings.

[0007] Furthermore, a stop bar is fixedly installed at the upper end of the movable component, and the height of the stop bar is higher than the height of the upper surface of the fixed component.

[0008] Furthermore, the alignment mechanism includes: a rack, fixedly installed on the inner sidewalls of the fixed component and the movable component, which are opposite to each other; a sliding frame, slidably installed at both ends within the fixed component and the movable component, wherein the upper and lower inner walls of the fixed component and the movable component are provided with slide tracks, and the top and bottom ends of the sliding frame are slidably installed within the slide tracks; a rotating shaft, vertically inserted into the sliding frame; a gear, fixedly sleeved on the rotating shaft, the gear meshing with the rack; and a coil spring, sleeved on the rotating shaft, one end of which is fixedly connected to the rotating shaft, and a bandage is movably wound around the outer side of the coil spring.

[0009] Furthermore, the bandages on the same side of the fixed component and the movable component are connected to each other, the length of the bandage is greater than the length of the magnetic chuck, the bandage is close to the upper surface of the magnetic chuck, and the width of the bandage is less than the thickness of the workpiece.

[0010] Furthermore, a reinforcing mechanism is provided between the two sliding frames to enhance the cleaning of the upper surface of the magnetic chuck. The reinforcing mechanism includes: an air reservoir, located between the two sliding frames and fixedly connected at its end to the air reservoir; several air jet valves, fixedly installed at the bottom of the fixed component and the movable component and arranged at equal intervals, the air jet valves communicating with the air reservoir; and a one-way valve, fixedly installed on the side wall of the fixed component and the movable component, the one-way valve communicating with the air reservoir.

[0011] Furthermore, the air reservoir is equipped with a support spring, which is always in a compressed state and is used to push the sliding frame to reset.

[0012] Furthermore, the jet valves on the fixed and movable components are oriented towards the center of the magnetic chuck.

[0013] Furthermore, a number of dial indicators arranged at equal intervals are fixedly installed at the bottom end of the movable component. The bottom end of the dial indicator is close to the upper surface of the magnetic chuck. The dial indicator is electrically connected to the control system and the display system. A vertical groove is opened at the end of the sliding groove of the magnetic chuck away from the fixed component. A number of storage slots are opened at equal intervals on the upper surface of the magnetic chuck.

[0014] This application has the following beneficial effects:

[0015] 1. The surface grinder provided in this application is easy to change materials. When placing the workpiece, the lower end face of the workpiece slides on the fixed component, and one end of the workpiece pushes the stop bar and the movable component to move, so that the cleaning electromagnetic bar on the fixed component cleans the lower end face of the workpiece, and the cleaning electromagnetic bar on the movable component cleans the upper end face of the magnetic chuck. This simplifies the cleaning process of the upper end face of the magnetic chuck and the lower end face of the workpiece, thereby speeding up the workpiece change speed.

[0016] 2. The surface grinder provided in this application is easy to change materials. When the moving component moves, the strap between the moving component and the fixed component is pulled. At the same time, the sliding frames, rotating shafts and straps at both ends of the fixed component and the moving component move towards the middle. During the movement, the straps on both sides are parallel, so that the straps form a contrast with the edge of the workpiece, ensuring that the workpiece can be placed flat and preventing the workpiece from being skewed, which would cause the grinding path of the grinding device to be extended, thereby avoiding unnecessary grinding time.

[0017] 3. The surface grinder provided in this application is easy to change materials. When the sliding frames at both ends of the fixed component and the movable component move towards the middle, the sliding frames squeeze the air storage bag, causing the gas in the air storage bag to be ejected through the jet valve. The ejected gas cleans non-magnetic impurities and further cleans the upper surface of the magnetic chuck, preventing non-magnetic impurities on the upper surface of the magnetic chuck from affecting the levelness of the workpiece. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0019] This application can be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the magnetic chuck and cleaning mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the fixing component and the slider of the present invention;

[0023] Figure 4 This is a cross-sectional view of the fixing component of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of the local structure at point A in the middle;

[0025] Figure 6 For the present invention Figure 3 Rear view;

[0026] Figure 7 This is a schematic diagram of the structure of the movable component and slider of the present invention.

[0027] In the diagram: 1. Bed; 2. Motion device; 3. Magnetic chuck; 301. Slide; 302. Storage slot; 4. Grinding device; 5. Control system; 6. Display system; 7. Cleaning mechanism; 71. Fixed component; 72. Moving component; 73. Slider; 74. Cleaning electromagnetic strip; 75. Ball bearing; 76. Alignment mechanism; 761. Rack; 762. Sliding frame; 763. Rotating shaft; 764. Gear; 765. Bandage; 77. Reinforcing mechanism; 771. Air reservoir; 772. Jet valve; 773. One-way valve; 78. Stop bar; 79. Dial indicator. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Example

[0029] Please see Figure 1 A surface grinder for easy material changing includes a bed 1, a motion device 2, a magnetic chuck 3, a grinding device 4, a control system 5, and a display system 6. The motion device 2 is movably installed at the middle position of the upper end of the bed 1. The magnetic chuck 3 is fixedly installed at the middle position of the top of the motion device 2. A support column is fixedly connected to the bed 1 behind the motion device 2. The grinding device 4, which can move up and down, is installed on the support column and is located directly above the magnetic chuck 3. The control system 5 for controlling the surface grinder is fixedly installed on one side of the bed 1, and the display system 6 is fixedly installed on one side of the support column. The motion device 2, the magnetic chuck 3, the grinding device 4, the control system 5, and the display system 6 are electrically connected.

[0030] Please see Figures 2-7The magnetic chuck 3 has grooves 301 on both sides. The upper end of the magnetic chuck 3 is equipped with a cleaning mechanism 7 for cleaning the lower surface of the workpiece and the upper surface of the magnetic chuck 3. The cleaning mechanism 7 includes a fixed component 71, a movable component 72, sliders 73, and a cleaning electromagnetic strip 74. Sliders 73 are fixedly connected to both ends of the fixed component 71 and the movable component 72. The sliders 73 at both ends of the fixed component 71 are fixedly installed at one end of the grooves 301 on both sides of the magnetic chuck 3. The sliders 73 at both ends of the movable component 72 are slidably installed within the grooves 301 on both sides of the magnetic chuck 3. The cleaning electromagnetic strip 74 is embedded in the top end of the fixed component 71 and in the bottom end of the movable component 72. When changing the surface of the workpiece... When changing workpieces, one end of the lower surface of the workpiece is placed on the fixed component 71, and the other end of the workpiece abuts against the movable component 72. Pushing the workpiece causes the movable component 72 and the slider 73 to slide. During the sliding process, the cleaning electromagnetic strip 74 on the fixed component 71 attracts the magnetic particles adhering to the lower surface of the workpiece. When the movable component 72 slides on the upper surface of the magnetic chuck 3, the cleaning electromagnetic strip 74 on the movable component 72 attracts the residual magnetic particles on the upper surface of the magnetic chuck 3. This cleans the magnetic particles on the lower surface of the workpiece and the upper surface of the magnetic chuck 3, simplifying the cleaning process of the upper surface of the magnetic chuck 3 and the lower surface of the workpiece when changing workpieces, thereby speeding up the workpiece change process.

[0031] The top of the fixed component 71 is movably embedded with a number of arrayed ball bearings 75; the ball bearings 75 provide certain support for the workpiece, so that there is a certain distance between the workpiece and the upper surface of the fixed component 71, ensuring that the magnetic particles on the workpiece can be attracted by the cleaning electromagnetic strip 74 on the fixed component 71, and the ball bearings 75 can reduce the friction force on the lower surface of the workpiece, preventing scratches from being generated on the lower surface of the workpiece.

[0032] A stop bar 78 is fixedly installed on the upper end of the movable component 72, and the height of the stop bar 78 is higher than the height of the upper end face of the fixed component 71. When the workpiece abuts against the movable component 72, the stop bar 78 limits the workpiece, so that the workpiece can push the stop bar 78 and the movable component 72 to move.

[0033] The working principle of Embodiment 1 of the present invention is as follows:

[0034] Please see Figures 1-7When changing or replacing a workpiece, one end of the lower surface of the workpiece is placed on the fixed component 71, and the other end of the workpiece abuts against the movable component 72. Pushing the workpiece causes the movable component 72 and the slider 73 to slide. During the sliding process, the cleaning electromagnetic strip 74 on the fixed component 71 attracts the magnetic particles adhering to the lower surface of the workpiece. When the movable component 72 slides on the upper surface of the magnetic chuck 3, the cleaning electromagnetic strip 74 on the movable component 72 attracts the residual magnetic particles on the upper surface of the magnetic chuck 3. This cleans the magnetic particles on the lower surface of the workpiece and the upper surface of the magnetic chuck 3, simplifying the cleaning process of the upper surface of the magnetic chuck 3 and the lower surface of the workpiece when changing workpieces, thereby speeding up the workpiece replacement process. Example

[0035] Example 2 is a further improvement based on Example 1.

[0036] Unlike Example 1, please refer to Figures 2-7 The fixed component 71 and the movable component 72 are equipped with a benchmarking mechanism 76 for referencing the workpiece placement angle. The benchmarking mechanism 76 includes a rack 761, a sliding frame 762, a rotating shaft 763, a gear 764, and a bandage 765. The rack 761 is fixedly installed on the opposing inner sidewalls of the fixed component 71 and the movable component 72. Slide tracks are provided on the upper and lower inner walls of the fixed component 71 and the movable component 72, and the sliding frame 762 is slidably installed at both ends of the fixed component 71 and the movable component 72. The top and bottom ends of the sliding frame 762 are slidably installed in the slide rail. A vertical rotating shaft 763 is inserted into the sliding frame 762. A gear 764 is fixedly sleeved on the rotating shaft 763 and meshes with the rack 761. A coil spring is sleeved on the rotating shaft 763 below the gear 764. One end of the inner side of the coil spring is fixedly connected to the rotating shaft 763. The coil spring has a certain strength. When the outer end of the coil spring is subjected to a small tension, the coil spring will not coil up. A bandage 765 is movably wrapped around the outer side of the coil spring.

[0037] The bandages 765 on the same side of the fixed member 71 and the movable member 72 are connected to each other, and the length of the bandage 765 is greater than the length of the magnetic chuck 3. The bandage 765 is close to the upper surface of the magnetic chuck 3, and the width of the bandage 765 is less than the thickness of the workpiece. When the workpiece pushes the stop bar 78 and the movable member 72 to move away from the fixed member 71, the bandage 765 inside the fixed member 71 and the movable member 72 is pulled out. Since the coil spring inside the bandage 765 has a certain strength, the coil spring does not coil up. At this time, the pulled-out bandage 765 pulls the coil spring and the rotating shaft 763 to rotate. The rotating shaft 763 drives the gear 764 to rotate synchronously. Since the gear 764 meshes with the rack 761, the gear 764 drives the sliding frame 762 to move towards the middle of the fixed member 71 or the movable member 72. The straps 765 on both sides of the fixed member 71 and the movable member 72 extend out. The straps 765 on both sides are parallel, and the straps 765 at both ends of the fixed member 71 and the movable member 72 contrast with the edge of the workpiece to ensure that the workpiece can be placed flat and to prevent the workpiece from being tilted, which would cause the grinding path of the grinding device 4 to be extended, thereby avoiding unnecessary grinding time.

[0038] A reinforcing mechanism 77 for cleaning the upper surface of the magnetic chuck 3 is provided between the two sliding frames 762. The reinforcing mechanism 77 includes an air reservoir 771, a jet valve 772, and a one-way valve 773. The air reservoir 771 is located between the two sliding frames 762, and its two ends are fixedly connected to the sliding frames 762 on both sides. Several jet valves 772 arranged at equal intervals are fixedly installed at the bottom ends of the fixed member 71 and the movable member 72, and the jet valves 772 communicate with the air reservoir 771. One-way valves 773 are fixedly installed on the side walls of the fixed member 71 and the movable member 72, and the one-way valves 773 communicate with the air reservoir 771. When the sliding frame 762 at the end moves towards the middle, it squeezes the air storage bag 771, causing the gas inside the air storage bag 771 to be compressed. The gas pressure inside the air storage bag 771 increases and is discharged from the jet valve 772. The jet valve 772 on the fixed member 71 blows at an angle toward the upper surface of the magnetic chuck 3, and the jet valve 772 on the movable member 72 is tilted in the same direction as the moving direction of the movable member 72. The jet valve 772 on the fixed member 71 cooperates with the jet valve 772 on the movable member 72 to blow off the non-magnetic impurities on the upper surface of the magnetic chuck 3, further cleaning the upper surface of the magnetic chuck 3 and preventing the non-magnetic impurities on the upper surface of the magnetic chuck 3 from affecting the levelness of the workpiece.

[0039] The air reservoir 771 is equipped with a support spring, which is always in a compressed state. The support spring is used to push the sliding frame 762 to reset. When the support spring pushes the sliding frame 762 to reset, it simultaneously supports the air reservoir 771. The extended air reservoir 771 generates negative pressure, which allows external gas to enter the air reservoir 771 through the one-way valve 773 to replenish the gas in the air reservoir 771.

[0040] The air valves 772 on the fixed member 71 and the movable member 72 are oriented toward the middle position of the magnetic chuck 3; this ensures that the gas ejected from the air valves 772 can blow off the non-magnetic impurities on the upper surface of the magnetic chuck 3, and prevents the air valves 772 on the fixed member 71 and the movable member 72 from blowing in a different direction than moving, which would cause impurities to remain on the magnetic chuck 3.

[0041] Several dial indicators 79 are fixedly mounted at the bottom of the movable component 72, with the bottom of each dial indicator 79 in close contact with the upper surface of the magnetic chuck 3. The dial indicators 79 are electrically connected to the control system 5 and the display system 6. A vertical groove is provided at the end of the slide groove 301 of the magnetic chuck 3 away from the fixed component 71. The vertical groove is used to hold the slider 73 on the movable component 72. Several storage slots 302 are provided at equal intervals on the upper surface of the magnetic chuck 3, and the axis of the storage slots 302 is aligned with the vertical groove at the end of the slide groove 301. On the same vertical plane; when the movable component 72 moves, the movable component 72 drives the dial indicator 79 to move synchronously, and the bottom ends of several dial indicators 79 make rolling contact with the upper end surface of the magnetic chuck 3, thereby detecting the flatness of the upper end surface of the magnetic chuck 3. When the movable component 72 slides to the end of the slide groove 301, the slider 73 on the movable component 72 is pushed to the vertical groove at the end of the slide groove 301 to limit the movable component 72. At the same time, the dial indicator 79 below the movable component 72 enters the storage groove 302.

[0042] The working principle of Embodiment 2 of the present invention is as follows:

[0043] Please see Figures 1-7When the workpiece pushes the stop bar 78 and the movable component 72 to move away from the fixed component 71, the bandage 765 inside the fixed component 71 and the movable component 72 is pulled out. Since the coil spring inside the bandage 765 has a certain strength, the coil spring does not coil. At this time, the pulled-out bandage 765 pulls the coil spring and the rotating shaft 763 to rotate. The rotating shaft 763 drives the gear 764 to rotate synchronously. Since the gear 764 meshes with the rack 761, the gear 764 drives the sliding frame 762 to move as a whole towards the middle of the fixed component 71 or the movable component 72. The bandages 765 on both sides of the fixed component 71 and the movable component 72 extend out. The bandages 765 on both sides are parallel, and the bandages 765 at both ends of the fixed component 71 and the movable component 72 form a contrast with the edge of the workpiece, ensuring that the workpiece can be placed flat and preventing the workpiece from being crooked, which would cause the grinding path of the grinding device 4 to be extended, thereby avoiding unnecessary grinding time.

[0044] When the sliding frames 762 at both ends of the fixed component 71 or the movable component 72 move towards the middle, the sliding frames 762 squeeze the air storage bladder 771, causing the gas inside the air storage bladder 771 to be compressed. The gas pressure inside the air storage bladder 771 increases and is discharged from the jet valve 772. The jet valve 772 on the fixed component 71 blows at an angle toward the upper surface of the magnetic chuck 3, and the jet valve 772 on the movable component 72 is tilted in the same direction as the moving direction of the movable component 72. The jet valve 772 on the fixed component 71 and the jet valve 772 on the movable component 72 cooperate to blow off the non-magnetic impurities on the upper surface of the magnetic chuck 3, further cleaning the upper surface of the magnetic chuck 3 and preventing the non-magnetic impurities on the upper surface of the magnetic chuck 3 from affecting the levelness of the workpiece.

Claims

1. A surface grinder that facilitates material changing, comprising a bed (1), a motion device (2), a magnetic chuck (3), a grinding device (4), a control system (5), and a display system (6), characterized in that: The magnetic chuck (3) has grooves (301) on both sides, and the upper end of the magnetic chuck (3) is provided with a cleaning mechanism (7) for cleaning the lower end face of the workpiece and the upper end face of the magnetic chuck (3). The cleaning mechanism (7) includes: The fixed component (71) has sliders (73) fixedly connected to both ends, and the sliders (73) are fixedly installed at one end of the slide groove (301); The movable component (72) has sliders (73) fixedly connected to both ends, and the sliders (73) are slidably installed in the groove (301); Two cleaning electromagnetic strips (74), one embedded in the top of the fixed component (71) and the other embedded in the bottom of the movable component (72); The fixed component (71) and the movable component (72) are provided with a calibration mechanism (76) for referencing the placement angle of the workpiece. The benchmarking organization (76) includes: The rack (761) is fixedly installed on the inner sidewalls of the fixed member (71) and the movable member (72) that are opposite to each other; The sliding frame (762) is slidably installed at both ends within the fixed component (71) and the movable component (72). The upper inner wall and lower inner wall of the fixed component (71) and the movable component (72) are provided with slide rails, and the top and bottom ends of the sliding frame (762) are slidably installed within the slide rails. The rotating shaft (763) is vertically inserted into the sliding frame (762); A gear (764) is fixedly sleeved on a rotating shaft (763), and the gear (764) meshes with a rack (761); A coil spring is sleeved on a rotating shaft (763), with one end of its inner side fixedly connected to the rotating shaft (763), and a bandage (765) is movably wrapped around the outer side of the coil spring. The bandages (765) on the same side of the fixed component (71) and the movable component (72) are connected to each other. The length of the bandage (765) is greater than the length of the magnetic chuck (3). The bandage (765) is close to the upper surface of the magnetic chuck (3). The width of the bandage (765) is less than the thickness of the workpiece. A reinforcing mechanism (77) for strengthening the cleaning of the upper surface of the magnetic chuck (3) is provided between the two sliding frames (762). The reinforcing mechanism (77) includes: An air reservoir (771) is disposed between two sliding frames (762), and its end is fixedly connected to the air reservoir (771); Several jet valves (772) are fixedly installed at the bottom ends of the fixed component (71) and the movable component (72) and are arranged at equal intervals. The jet valves (772) are connected to the air reservoir (771). A one-way valve (773) is fixedly installed on the side wall of the fixed component (71) and the movable component (72), and the one-way valve (773) is connected to the air reservoir (771).

2. The surface grinder for easy material changing according to claim 1, characterized in that: The top of the fixed member (71) is movably embedded with a plurality of arrayed ball bearings (75).

3. The surface grinder for easy material changing according to claim 1, characterized in that: A stop bar (78) is fixedly installed on the upper end of the movable component (72), and the height of the stop bar (78) is higher than the height of the upper surface of the fixed component (71).

4. A surface grinder for easy material changing according to claim 1, characterized in that: The air reservoir (771) is provided with a support spring, which is always in a compressed state and is used to push the sliding frame (762) to reset.

5. A surface grinder for easy material changing according to claim 1, characterized in that: The jet valves (772) on the fixed member (71) and the movable member (72) are oriented toward the middle position of the magnetic chuck (3).

6. A surface grinder for easy material changing according to claim 1, characterized in that: The bottom end of the movable component (72) is fixedly equipped with several dial indicators (79) arranged at equal intervals. The bottom end of the dial indicator (79) is close to the upper surface of the magnetic chuck (3). The dial indicator (79) is electrically connected to the control system (5) and the display system (6). The end of the slide groove (301) of the magnetic chuck (3) away from the fixed component (71) is provided with a vertical groove. The upper surface of the magnetic chuck (3) is provided with several storage slots (302) arranged at equal intervals.

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