Quick positioning magnetic chuck for numerical control precision surface grinding machine

Abstract

The utility model relates to the technical field of mechanical fixing clamps, and discloses a quick positioning magnetic chuck for a numerical control precision surface grinding machine, which comprises a magnetic chuck, a positioning cleaning mechanism is arranged below the magnetic chuck, and the positioning cleaning mechanism comprises a motor, a driving gear, a first lower sliding rack, a second lower sliding rack and a first U-shaped sliding plate. A driving gear is driven by the output end of a motor to rotate clockwise, a first lower sliding rack and a second lower sliding rack which are meshed on the two sides contract inwards, first U-shaped sliding plates at the two ends drive a first extension plate to slide along the upper surface of a magnetic suction cup, and the driving gear rotates to drive a meshed bevel gear to rotate; and the driven gear engaged above is driven to rotate anticlockwise, the first upper sliding rack and the second upper sliding rack on the two sides are driven to expand outwards through anticlockwise rotation of the driven gear, the driving gear is driven to rotate clockwise or anticlockwise through the motor, and a workpiece adsorbed to the upper surface of the magnetic suction cup is located.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical fixing fixtures, in particular to a rapid positioning magnetic chuck for a numerically controlled precision surface grinder. Background Art

[0002] The electric permanent magnetic chuck is designed based on the principle of continuity of magnetic flux and the principle of superposition of magnetic field. The magnetic circuit of the electric permanent magnetic chuck is designed into multiple magnetic systems. Through the relative movement of the magnetic systems, the magnetic field strength on the working magnetic pole surface is added or cancelled, thereby achieving the purpose of holding and unloading. When the electric permanent magnetic chuck is working, when the electric permanent magnetic chuck is in the adsorption state, the magnetic lines of force come out from the N pole of the magnet, pass through the ferromagnetic workpiece, and then enter the S pole of the magnet, so that the workpiece can be firmly adsorbed on the working pole surface of the electric permanent magnetic chuck to achieve adsorption.

[0003] For example, the electric permanent magnetic chuck of a grinder disclosed in Chinese patent application CN213828538U records: first, the excitation coil is installed on the outer surface of the excitation core, then the magnetization device is installed between the protection box and the carrier box, then the power of the magnetization device is turned on, and then the permanent magnetic chuck is installed on the grinder through the mounting plate. When in use, the workpiece needs to be placed on the contact block, and the magnetic force is conducted by the contact block. Moreover, the equipment can only be started when the workpiece blocks the photoelectric sensor, so as to avoid the workpiece being displaced during grinding and not being discovered in time to damage the material. It can also increase the safety of the equipment and avoid the danger of accidental startup. During the grinding process, the temperature sensor detects the temperature of the permanent magnetic chuck, and automatically cuts off the power when the temperature is too high to protect the equipment.

[0004] When the magnetic suction cup of the above-mentioned surface grinder adsorbs the workpiece, the workpiece cannot be accurately positioned on the contact block, which will cause the position of the workpiece to be inconsistent after each clamping, making it difficult to ensure the consistency and repeatability of the processing results. More adjustment and calibration time is required, which reduces production efficiency and increases processing time. In addition, when the adsorbed workpiece is being ground, the metal powder generated will fly onto the protective shell and accumulate on the surface of the contact block, causing the next adsorbed workpiece to tilt, resulting in errors in grinding and affecting the work quality. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a rapid positioning magnetic chuck for a CNC precision surface grinder, which has the advantages of positioning the adsorbed workpiece, etc., and solves the problems that the adsorbed workpiece cannot be positioned and metal powder affects the adsorption of the workpiece.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, not only the problem of the adsorbed workpiece being unable to be positioned is solved, but also the powder generated by grinding can be cleaned in time is ensured. The utility model provides the following technical solutions: a quick positioning magnetic chuck for a CNC precision surface grinder, comprising a magnetic chuck, a positioning and cleaning mechanism is arranged below the magnetic chuck, the positioning and cleaning mechanism comprises a motor, a driving gear, a lower sliding rack one, a lower sliding rack two and a U-shaped slide plate one, the motor is arranged below the magnetic chuck, the driving gear is plugged into the output end of the motor, the lower sliding rack one is meshed with one side of the driving gear, the lower sliding rack two is meshed with the driving gear on the side away from the lower sliding rack one, and one end of the lower sliding rack one is sleeved with a U-shaped slide plate one.

[0009] As a preferred solution for the quick positioning magnetic chuck for the CNC precision surface grinder described in the utility model, the end of the lower sliding rack 2 away from the lower sliding rack 1 is sleeved with a U-shaped slide plate 1, and an extension plate 1 is fixedly connected to the U-shaped slide plate 1.

[0010] As a preferred solution for the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, a positioning plate 1 is fixedly connected to one side of the extension plate 1, and the positioning plate 1 is slidably connected to the upper surface of the magnetic chuck.

[0011] As a preferred solution for the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, a limiting rod is rotatably connected to the driving gear, and one end of the limiting rod is rotatably connected to a bevel gear.

[0012] As a preferred solution of the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, a driven gear is meshed above the bevel gear, and the driven gear is rotatably connected to the driving gear.

[0013] As a preferred solution for the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, one side of the driven gear is meshed with an upper sliding rack 1, and the other side of the driven gear is meshed with an upper sliding rack 2.

[0014] As a preferred solution for the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, one end of the upper sliding rack is fixedly connected to a U-shaped slide plate 2, and an extension plate 2 is fixedly connected to the U-shaped slide plate 2.

[0015] As a preferred solution of the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, a positioning plate 2 is fixedly connected to one side of the extension plate 2, and a brush plate is embedded and installed on the lower surface of the positioning plate 2.

[0016] As a preferred solution for the rapid positioning magnetic chuck for the CNC precision surface grinder of the utility model, the brush plate is slidably connected to the upper surface of the magnetic chuck, and a grid plate is embedded and installed on the magnetic chuck.

[0017] As a preferred solution of the quick positioning magnetic chuck for the CNC precision surface grinder of the utility model, a collection box is slidably connected inside the magnetic chuck, and a handle is fixedly connected to one side of the collection box.

[0018] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0019] 1. The output end of the motor drives the driving gear to rotate clockwise, so that the meshing lower sliding racks 1 and 2 on both sides shrink inward, so that the U-shaped slide plates 1 at both ends drive the extension plate 1 to slide along the upper surface of the magnetic suction cup. The meshing bevel gear is rotated by the driving gear, and the meshing driven gear above is driven to rotate counterclockwise. The driven gear rotates counterclockwise to drive the upper sliding racks 1 and 2 on both sides to expand outward. The motor drives the driving gear to rotate clockwise or counterclockwise respectively, and the plane positions of the workpiece adsorbed on the upper surface of the magnetic suction cup are positioned respectively, to ensure the consistency and repeatability of the processing results.

[0020] 2. Use the brush plate to slide inward along the upper surface of the magnetic chuck to clean and collect the metal powder remaining on the surface of the magnetic chuck when the workpiece is polished. Pull the handle on one side of the collection box to slide the collection box out of the magnetic chuck and pour out the metal powder collected in the collection box to reduce resource waste, prevent the residual metal powder from tilting the adsorbed workpiece, and ensure work quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional overall structural schematic diagram of the utility model;

[0023] Figure 2 This is a structural diagram of the positioning and cleaning mechanism of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the driving gear of the utility model;

[0025] Figure 4It is a structural schematic diagram of the magnetic chuck of the utility model.

[0026] In the figure: 100, magnetic suction cup; 200, positioning and cleaning mechanism; 201, motor; 202, driving gear; 203, lower sliding rack one; 204, lower sliding rack two; 205, U-shaped slide plate one; 206, extension plate one; 207, positioning plate one; 208, limiting rod; 209, bevel gear; 210, driven gear; 211, upper sliding rack one; 212, upper sliding rack two; 213, U-shaped slide plate two; 214, extension plate two; 215, positioning plate two; 216, brush plate; 217, grid plate; 218, collection box; 219, handle. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model is further described below in conjunction with embodiments.

[0029] Example 1

[0030] Reference Figure 1-3 , which is the first embodiment of the utility model, provides a rapid positioning magnetic chuck for a CNC precision surface grinder, including a magnetic chuck 100, a positioning and cleaning mechanism 200 is arranged below the magnetic chuck 100, and the positioning and cleaning mechanism 200 includes a motor 201, a driving gear 202, a lower sliding rack 1 203, a lower sliding rack 204 and a U-shaped slide plate 1 205. The motor 201 is arranged below the magnetic chuck 100, the driving gear 202 is plugged into the output end of the motor 201, the lower sliding rack 1 203 is meshed on one side of the driving gear 202, the lower sliding rack 204 is meshed on the driving gear 202 away from the side of the lower sliding rack 1 203, and one end of the lower sliding rack 1 203 is sleeved with a U-shaped slide plate 1 205, and the driving gear 202 is driven to rotate clockwise through the output end of the motor 201, so that the lower sliding rack 1 203 and the lower sliding rack 204 meshed on both sides are retracted inward.

[0031] One end of the lower sliding rack 204 away from the lower sliding rack 1 203 is sleeved with a U-shaped slide plate 205, and an extension plate 206 is fixedly connected to the U-shaped slide plate 205. The lower sliding rack 203 and the lower sliding rack 204 shrink and slide inward, so that the U-shaped slide plates 205 at both ends drive the extension plate 206 to slide along the upper surface of the magnetic suction cup 100.

[0032] A positioning plate 207 is fixedly connected to one side of the extension plate 206, and the positioning plate 207 is slidably connected to the upper surface of the magnetic suction cup 100. The positioning plate 207 is driven to move by the extension plates 206 on both sides to position the workpiece adsorbed on the upper surface of the magnetic suction cup 100.

[0033] The driving gear 202 is rotatably connected to a limiting rod 208 , one end of which is rotatably connected to a bevel gear 209 . The limiting rod 208 plays a limiting role, so that the bevel gear 209 is driven to rotate when the driving gear 202 rotates.

[0034] A driven gear 210 is meshed above the bevel gear 209, and the driven gear 210 is rotatably connected to the driving gear 202. The driving gear 202 rotates to drive the meshed bevel gear 209 to rotate, and drives the meshed driven gear 210 above to rotate counterclockwise.

[0035] An upper sliding rack 1 211 is meshed on one side of the driven gear 210, and an upper sliding rack 2 212 is meshed on the other side of the driven gear 210. When the driven gear 210 rotates counterclockwise, the upper sliding rack 1 211 and the upper sliding rack 2 212 on both sides are driven to expand outward.

[0036] One end of the second upper sliding rack 212 is fixedly connected to a second U-shaped slide plate 213 , and a second extension plate 214 is fixedly connected to the second U-shaped slide plate 213 .

[0037] During use, the output end of the motor 201 drives the driving gear 202 to rotate clockwise, so that the meshing lower sliding rack 1 203 and the lower sliding rack 204 on both sides shrink inward, so that the U-shaped slide plate 1 205 at both ends drives the extension plate 1 206 to slide along the upper surface of the magnetic suction cup 100, and the meshing bevel gear 209 is driven to rotate by the driving gear 202, and the meshing driven gear 210 above is driven to rotate counterclockwise, and the driven gear 210 rotates counterclockwise, driving the upper sliding rack 1 211 and the upper sliding rack 2 212 on both sides to expand outward, and the motor 201 drives the driving gear 202 to rotate clockwise or counterclockwise respectively, so as to position the workpiece adsorbed on the upper surface of the magnetic suction cup 100 respectively.

[0038] Example 2

[0039] Reference Figure 1-4, which is the second embodiment of the utility model, provides a quick positioning magnetic suction cup for a CNC precision surface grinder, including a second extension plate 214, one side of which is fixedly connected to a second positioning plate 215, and the lower surface of the second positioning plate 215 is embedded with a brush plate 216, and the brush plate 216 is respectively installed on the lower surfaces of the two second positioning plates 215 and the lower surfaces of the two first positioning plates 207.

[0040] The brush plate 216 is slidably connected to the upper surface of the magnetic suction cup 100, and a grid plate 217 is embedded in the magnetic suction cup 100. The brush plate 216 slides inward along the upper surface of the magnetic suction cup 100 to clean and collect the metal powder remaining on the surface of the magnetic suction cup 100 when the workpiece is polished.

[0041] A collection box 218 is slidably connected inside the magnetic suction cup 100, and a handle 219 is fixedly connected to one side of the collection box 218. The collection box 218 can be slid out of the magnetic suction cup 100 by pulling the handle 219 on one side of the collection box 218, and the metal powder collected in the collection box 218 can be poured out, thereby reducing resource waste and preventing the residual metal powder from causing the adsorbed workpiece to tilt.

[0042] During use, the brush plate 216 slides inward along the upper surface of the magnetic suction cup 100 to clean and collect the metal powder remaining on the surface of the magnetic suction cup 100 when the workpiece is polished. The collection box 218 is slid out of the magnetic suction cup 100 by pulling the handle 219 on one side of the collection box 218, and the metal powder collected in the collection box 218 is poured out, thereby reducing resource waste, preventing the residual metal powder from causing the adsorbed workpiece to tilt, and increasing the usability of the equipment.

[0043] The remaining structure is the same as that of Example 1.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid positioning magnetic chuck for a CNC precision surface grinder, comprising a magnetic chuck (100), characterized in that: A positioning and cleaning mechanism (200) is provided below the magnetic chuck (100); The positioning and cleaning mechanism (200) comprises a motor (201), a driving gear (202), a lower sliding rack (203), a lower sliding rack (204) and a U-shaped slide plate (205); the motor (201) is arranged below the magnetic chuck (100); the driving gear (202) is plugged into the output end of the motor (201); the lower sliding rack (203) is meshed with one side of the driving gear (202); the lower sliding rack (204) is meshed with the driving gear (202) on a side away from the lower sliding rack (203); and one end of the lower sliding rack (203) is sleeved with the U-shaped slide plate (205).

2. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 1, characterized in that: One end of the lower sliding rack 2 (204) away from the lower sliding rack 1 (203) is sleeved with a U-shaped slide plate 1 (205), and an extension plate 1 (206) is fixedly connected to the U-shaped slide plate 1 (205).

3. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 2, characterized in that: One side of the extension plate 1 (206) is fixedly connected to a positioning plate 1 (207), and the positioning plate 1 (207) is slidably connected to the upper surface of the magnetic suction cup (100).

4. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 1, characterized in that: The driving gear (202) is rotatably connected to a limiting rod (208), and one end of the limiting rod (208) is rotatably connected to a bevel gear (209).

5. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 4, characterized in that: A driven gear (210) is meshed above the bevel gear (209), and the driven gear (210) is rotatably connected to the driving gear (202).

6. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 5, characterized in that: One side of the driven gear (210) is meshed with an upper sliding rack 1 (211), and the other side of the driven gear (210) is meshed with an upper sliding rack 2 (212).

7. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 6, characterized in that: One end of the second upper sliding rack (212) is fixedly connected to a second U-shaped slide plate (213), and an extension plate (214) is fixedly connected to the second U-shaped slide plate (213).

8. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 7, characterized in that: A second positioning plate (215) is fixedly connected to one side of the second extension plate (214), and a brush plate (216) is embedded and installed on the lower surface of the second positioning plate (215).

9. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 8, characterized in that: The brush plate (216) is slidably connected to the upper surface of the magnetic suction cup (100), and a grid plate (217) is embedded and installed on the magnetic suction cup (100).

10. The rapid positioning magnetic chuck for a CNC precision surface grinder according to claim 1, characterized in that: A collection box (218) is slidably connected inside the magnetic suction cup (100), and a handle (219) is fixedly connected to one side of the collection box (218).

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