Grinding equipment

Abstract

The utility model relates to the technical field of metal surface treatment, and discloses a grinding device which comprises a rack, a lower connecting seat is arranged in the middle of the rack, a grinding groove used for storing grinding liquid is formed in the lower connecting seat, an annular lower grinding disc is fixedly arranged in the grinding groove, a gear ring is fixedly arranged at the edge of the grinding groove, and the lower grinding disc is connected with the gear ring. A gear driven to rotate through rotating power is arranged in the center of the grinding groove, a plurality of planetary gear discs are arranged between the gear and the gear ring, a plurality of positioning through holes used for storing metal plates are formed in the planetary gear discs, and the thickness of the planetary gear discs is smaller than that of the metal plates; an upper connecting base is arranged at the upper end of the machine frame, an upper grinding disc corresponding to the lower grinding disc is arranged on the lower side of the upper connecting base, and lifting power for driving the upper grinding disc to ascend and descend is arranged on the upper connecting base. The grinding device has the advantages of being high in grinding efficiency and good in grinding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of surface treatment of metal parts, in particular to a grinding device. Background Art

[0002] After many metal plates are machined mechanically, the surface roughness cannot meet the requirements. Therefore, subsequent grinding operations need to be carried out on their surfaces so that the surfaces of the metal plates meet the usage requirements. Currently, when grinding metal plates, the metal plates are usually fixed on the grinding table of the grinding device, and then the surface is ground by a grinding plate and grinding fluid. After one side is ground well, another side is ground. This kind of grinding device has low grinding efficiency and poor grinding uniformity. Content of the Utility Model

[0003] The utility model provides a grinding device with high grinding efficiency and good grinding effect to solve the above problems existing in the prior art.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A grinding device includes a frame. A lower connecting seat is arranged in the middle of the frame. A grinding groove for storing grinding fluid is arranged on the lower connecting seat. An annular lower grinding disc is fixedly arranged in the grinding groove. A gear ring is fixedly arranged at the edge of the grinding groove. A gear driven by a rotating power to rotate is arranged at the center of the grinding groove. A plurality of planetary gear discs are arranged between the gear and the gear ring. A plurality of positioning through holes for storing metal plates are arranged on the planetary gear discs. The thickness of the planetary gear discs is less than the thickness of the metal plates;

[0006] An upper connecting seat is arranged at the upper end of the frame. An upper grinding disc corresponding to the lower grinding disc is arranged on the lower side of the upper connecting seat. A lifting power for driving the upper grinding disc to lift is arranged on the upper connecting seat.

[0007] Preferably, an outer support ring for supporting the planetary gear discs is arranged on the lower side of the gear ring. An inner support ring for supporting the planetary gear discs is arranged on the lower side of the gear. The top surface of the outer support ring and the top surface of the inner support ring are coplanar. The top surface of the outer support ring is higher than the upper surface of the lower grinding disc, so that a gap is formed between the surface of the planetary gear discs and the surface of the lower grinding disc.

[0008] Preferably, a protection groove is arranged on the lower connecting seat. The grinding groove is arranged in the protection groove. A base is arranged at the bottom of the frame. A liquid storage tank is arranged on the base. The bottom of the protection groove is connected with the liquid storage tank through a pipeline. A valve is arranged in the pipeline.

[0009] Preferably, a connecting plate is fixedly provided on the upper side of the upper grinding disc. A pressing plate fixedly connected to the shaft end of the lifting power is provided on the upper side of the connecting plate. A plurality of guide rods slidably passing through the pressing plate and the upper connecting seat are provided on the connecting plate. A limiting ring is fixedly provided on the part of the guide rod between the pressing plate and the upper connecting seat. A compression spring is sleeved on the part of the guide rod between the connecting plate and the pressing plate.

[0010] Preferably, a medium channel is provided in the guide rod. An annular pipe is provided at the upper end of the guide rod. An interface connected to an external grinding fluid pipeline is provided on the annular pipe. The upper end of the medium channel in each conduit is communicated with the annular pipe.

[0011] A central concave cavity is provided at the center of the lower side surface of the connecting plate. A plurality of diversion channels connecting the medium channel and the central concave cavity are provided in the connecting plate.

[0012] Preferably, an annular groove is provided on the lower side surface of the connecting plate outside the central concave cavity. The opening of the annular groove is closed by the upper grinding disc. The diversion channel is communicated with the annular groove. A plurality of liquid outlet holes uniformly distributed in the circumferential direction and communicated with the annular groove are provided on the side wall of the central concave cavity.

[0013] Preferably, an impeller disc is fixedly provided on the top surface of the gear. When the upper grinding disc descends to contact the metal plate and is in the grinding state, the impeller disc is located in the central concave cavity.

[0014] Preferably, a plurality of drainage grooves radially distributed in the circumferential direction are provided on the grinding surfaces of the upper grinding disc and the lower grinding disc.

[0015] Preferably, a plurality of annular micro-grooves concentrically distributed and penetrating the drainage grooves are provided on the grinding surfaces of the upper grinding disc and the lower grinding disc.

[0016] Therefore, the utility model has the following beneficial effects: (1) During grinding, the upper grinding disc and the lower grinding disc synchronously grind the upper side surface and the lower side surface of the metal plate respectively. Each metal plate only needs to be ground once, and the grinding efficiency is high; (2) Multiple planetary gear discs are configured, and multiple metal plates to be ground can be installed on each planetary gear disc, realizing batch grinding of metal plates; (3) Each metal plate is independently installed in the positioning through hole, and the metal plates will not collide with each other during the grinding process; (4) During the grinding process, the upper grinding disc and the lower grinding disc do not move, and the metal plates rotate and revolve synchronously under the action of the planetary gear disc, and the grinding effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model.

[0018] Figure 2 is Figure 1 a three-dimensional view of.

[0019] Figure 3 It is a schematic diagram of the separated state between the upper grinding plate and the metal sheet.

[0020] Figure 4 It is a schematic diagram of the grinding state when the upper grinding plate descends and contacts the metal sheet.

[0021] Figure 5 It is Figure 4 The sectional view taken along A-A in

[0022] Figure 6 It is a schematic diagram of the installation of the gear ring, gear, planetary gear disc, and metal sheet.

[0023] Figure 7 It is a schematic diagram of the connection between the grinding groove and the electromagnet.

[0024] Figure 8 It is Figure 7 The explosion diagram of

[0025] Figure 9 It is Figure 6 The sectional view of

[0026] Figure 10 It is a schematic diagram of the metal sheet installed on the planetary gear disc.

[0027] Figure 11 It is a schematic diagram of the structure of the lower grinding plate (upper grinding plate).

[0028] Figure 12 It is a schematic diagram of the installation of the upper grinding plate.

[0029] Figure 13 It is Figure 12 The explosion diagram of

[0030] Figure 14 It is Figure 12 The sectional view of

[0031] Figure 15 It is a state diagram of the upper grinding plate and the lower grinding plate in the grinding state. Specific embodiments

[0032] In order to make the technical problems, technical solutions, and beneficial technical effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, rather than to limit the protection scope of the present utility model.

[0033] It should be understood that in this text, expressions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the quantity of the indicated technical features. Features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0034] As Figures 1 - 10 shown, a grinding device includes a frame 10. An under-connecting seat 100 is provided in the middle part of the frame 10. A grinding groove 11 for storing grinding liquid is provided on the under-connecting seat 100. An annular lower grinding disc 12 is fixedly provided in the grinding groove 11. A gear ring 110 is fixedly provided at the edge of the grinding groove 11. A gear 111 driven to rotate by a rotational power 13 is provided at the center of the grinding groove 11. A number of planetary gear discs 112 are provided between the gear and the gear ring. A number of positioning through holes 1120 for storing metal plates 14 are provided on the planetary gear discs 112. The thickness of the planetary gear discs 112 is less than the thickness of the metal plates 14. The rotational power 13 in this embodiment is configured as a motor.

[0035] As Figure 8 and Figure 9 shown, an outer support ring 113 for supporting the planetary gear discs is provided on the lower side of the gear ring 110. An inner support ring 114 for supporting the planetary gear discs is provided on the lower side of the gear 111. The top surface of the outer support ring 113 and the top surface of the inner support ring 114 are coplanar. The top surface of the outer support ring 113 is higher than the upper surface of the lower grinding disc, so that a gap is formed between the surface of the planetary gear discs 112 and the surface of the lower grinding disc. In this way, when the gear drives the planetary gear discs to rotate, friction between the planetary gear discs and the lower grinding disc is prevented.

[0036] A protective groove 15 is provided on the under-connecting seat 100. The grinding groove 11 is arranged in the protective groove 15. A base 101 is provided at the bottom of the frame 10. A liquid storage tank 16 is provided on the base 101. The bottom of the protective groove 15 is connected to the liquid storage tank 16 through a pipeline 17. A valve is provided in the pipeline. Grinding liquid is injected into the grinding groove. When the grinding liquid needs to be replaced, the valve is opened to drain the waste grinding liquid into the liquid storage tank 16.

[0037] As Figures 12 - 15 shown, an upper connecting seat 102 is provided at the upper end of the frame 10. A upper grinding disc 20 corresponding to the lower grinding disc is provided on the lower side of the upper connecting seat 102. A lifting power 21 for driving the upper grinding disc to lift is provided on the upper connecting seat 102. The lifting power 21 can be any one of a cylinder, an electric cylinder, and an oil cylinder. The lifting power in this embodiment is configured as an electric cylinder.

[0038] A connecting plate 22 is fixedly arranged on the upper side of the upper grinding plate 20. A pressing plate 23 fixedly connected to the shaft end of the lifting power is arranged on the upper side of the connecting plate 22. A plurality of guide rods 24 slidably passing through the pressing plate 23 and the upper connecting seat are arranged on the connecting plate 22. A limiting ring 25 is fixedly arranged on the part of the guide rod 24 between the pressing plate 23 and the upper connecting seat. A compression spring 26 is sleeved on the part of the guide rod 24 between the connecting plate 22 and the pressing plate 23.

[0039] A medium channel 240 is arranged inside the guide rod 24. An annular pipe 27 is arranged at the upper end of the guide rod 24. An interface 270 connected to an external grinding fluid pipeline is arranged on the annular pipe 27. The upper end of the medium channel 240 in each conduit is communicated with the annular pipe. A central concave cavity 220 is arranged at the center of the lower side surface of the connecting plate 22. A plurality of diversion channels 221 connecting the medium channel 240 and the central concave cavity are arranged inside the connecting plate 22. An annular groove 222 is arranged on the lower side surface of the connecting plate 22 outside the central concave cavity. The opening of the annular groove 222 is closed by the upper grinding plate 20. The diversion channel 221 is communicated with the annular groove 222. A plurality of liquid outlet holes 223 uniformly distributed in the circumferential direction and communicated with the annular groove are arranged on the side wall of the central concave cavity 220.

[0040] As Figure 6 and Figure 15 shown, an impeller disc 18 is fixedly arranged on the top surface of the gear 111. When the upper grinding plate 20 descends to contact the metal sheet and is in the grinding state, the impeller disc is located in the central concave cavity. The grinding fluid enters the central concave cavity 220 through the annular pipe 27, the medium channel 240, the diversion channel 221, the annular groove 222, and the liquid outlet holes 223. The impeller disc 18 rotates with the rotation of the gear, so as to uniformly convey the grinding fluid in the central concave cavity to the area between the upper grinding plate and the lower grinding plate, so that the grinding fluid is more uniformly distributed and the grinding effect is effectively improved.

[0041] During the grinding process, the lifting power drives the upper grinding plate to descend and elastically presses the upper grinding plate on the metal sheet through the compression spring. The pressure of the upper grinding plate can be changed by controlling the extension length of the shaft end of the lifting power (electric cylinder); in some embodiments, the pressure of the upper grinding plate on the metal sheet can be further adjusted through the following structure. Specifically: the connecting plate 22 is configured as a ferromagnetic body, and an electromagnet 30 is fixedly arranged at the bottom of the grinding groove 11; when the electromagnet 30 is energized, it can magnetically adsorb the ferromagnetic body. Usually, when the metal sheet to be ground is a non-ferromagnetic material (such as copper, aluminum, stainless steel, etc.), the pressure of the upper grinding plate on the metal sheet can be further adjusted and enhanced through the electromagnet to better meet the grinding requirements.

[0042] As Figure 11As shown, the upper grinding plate 20 and the lower grinding plate 12 are both in a ring structure. A number of drainage grooves 120 radially distributed along the circumferential direction are provided on the grinding surfaces of the upper grinding plate 20 and the lower grinding plate 12; a number of annular micro-grooves 121 distributed in concentric circles and penetrating the drainage grooves are provided on the grinding surfaces of the upper grinding plate and the lower grinding plate. The grinding fluid flowing out from the central concave cavity flows into the grinding surface along the drainage grooves 120 and the annular micro-grooves 121, and the grinding fluid can better grind the surface of the metal sheet.

[0043] Combined with the attached drawings, the principle of the present utility model is as follows: In the initial state, the upper grinding plate 20 is in the state as Figure 3 shown. In the initial state, the metal sheet 14 to be ground is placed into the positioning through-hole on the planetary gear disk. The shape of the positioning through-hole is adapted to the shape of the sheet. The upper grinding plate is driven to descend by the lifting power until it elastically abuts against the upper surface of the metal sheet; the grinding fluid is injected into the grinding groove through the annular pipe. At the same time, the motor is started to make the gear rotate. The gear drives the planetary gear disk to rotate and revolve, and then drives the rotation and revolution of the metal sheet. The gear also drives the impeller disk to rotate. The impeller disk evenly transports the grinding fluid to the grinding surfaces of the upper grinding plate and the lower grinding plate, thereby also stirring the grinding fluid and preventing the grinding particles in the grinding fluid from precipitating. Through this kind of grinding equipment, the two sides of a batch of metal sheets can be ground synchronously, the grinding efficiency is significantly improved, the grinding quality is good, and the pressure of the upper grinding plate can be adjusted by changing the height of the pressing plate during the grinding process, or the pressure can be increased by energizing the electromagnet.

[0044] In the description of the present utility model, it should be understood that the directions or position relationships indicated by up and down, left and right, inner end, outer end, one end, the other end, etc. are the azimuth or position relationships based on the azimuth shown in the attached drawings. It is only for more clearly facilitating the description of the technical solution of the present utility model, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific azimuth, and cannot be construed as a limitation to the present utility model.

[0045] Although specific embodiments of the present utility model are described in detail here, they are only given for the purpose of explanation and should not be considered as constituting a limitation to the scope of the present utility model. Various substitutions, changes and modifications can be conceived without departing from the spirit and scope of the present utility model.

Claims

1. A grinding device, comprising a frame, characterized in that: A lower connecting seat is provided in the middle of the frame, a grinding groove for storing grinding liquid is provided on the lower connecting seat, a ring-shaped lower grinding disc is fixedly provided in the grinding groove, a gear ring is fixedly provided at the edge of the grinding groove, a gear driven to rotate by a rotary power is provided at the center of the grinding groove, a plurality of planetary gear plates are provided between the gear and the gear ring, a plurality of positioning through holes for storing metal plates are provided on the planetary gear plates, and the thickness of the planetary gear plates is less than the thickness of the metal plates; An upper connecting seat is provided at the upper end of the frame, an upper grinding disc corresponding to the lower grinding disc is provided at the lower side of the upper connecting seat, and a lifting power for driving the upper grinding disc to rise and fall is provided on the upper connecting seat.

2. A grinding device according to claim 1, characterized in that: An outer support ring for supporting the planetary gear plate is provided on the lower side of the gear ring, and an inner support ring for supporting the planetary gear plate is provided on the lower side of the gear. The top surface of the outer support ring is coplanar with the top surface of the inner support ring, and the top surface of the outer support ring is higher than the upper surface of the lower grinding plate, so that a gap is formed between the surface of the planetary gear plate and the lower grinding plate.

3. A grinding device according to claim 1, characterized in that: The lower connecting seat is provided with a protective groove, the grinding groove is arranged in the protective groove, the bottom of the frame is provided with a base, the base is provided with a liquid storage tank, the bottom of the protective groove is connected to the liquid storage tank through a pipeline, and a valve is provided in the pipeline.

4. A grinding device according to claim 1, characterized in that: A connecting plate is fixedly provided on the upper side of the upper grinding disc, and a pressure plate fixedly connected to the shaft end of the lifting power is provided on the upper side of the connecting plate. A plurality of guide rods sliding through the pressure plate and the upper connecting seat are provided on the connecting plate, and a limiting ring is fixedly provided on the portion of the guide rod located between the pressure plate and the upper connecting seat, and a compression spring is sleeved on the portion of the guide rod located between the connecting plate and the pressure plate.

5. A grinding device according to claim 4, characterized in that: The guide rod is provided with a medium channel, the upper end of the guide rod is provided with an annular tube, the annular tube is provided with an interface connected to an external grinding liquid pipeline, and the upper end of the medium channel in each conduit is connected to the annular tube; A central concave cavity is provided at the center of the lower side surface of the connecting plate, and a plurality of flow guide channels connecting the medium channel and the central concave cavity are provided in the connecting plate.

6. A grinding device according to claim 5, characterized in that: The lower side of the connecting plate is located outside the central cavity and is provided with an annular groove, the opening of which is closed by the upper grinding disc, the guide channel is connected to the annular groove, and the side wall of the central cavity is provided with a plurality of liquid outlet holes evenly distributed along the circumference and connected to the annular groove.

7. A grinding device according to claim 6, characterized in that: An impeller disc is fixedly arranged on the top surface of the gear. When the upper grinding disc descends to contact with the metal plate and is in a grinding state, the impeller disc is located in the central concave cavity.

8. A grinding device according to claim 5 or 6, characterized in that: The grinding surfaces of the upper grinding disc and the lower grinding disc are both provided with a plurality of drainage grooves which are radially distributed along the circumferential direction.

9. A grinding device according to claim 8, characterized in that: The grinding surfaces of the upper grinding disc and the lower grinding disc are both provided with a plurality of annular micro grooves which are distributed in concentric circles and penetrate the drainage groove.

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