A grinding device and a grinding method for electric heating tube contact

Abstract

The present invention discloses a grinding device and a grinding method for electric heating tube contacts. The grinding device includes a frame, a rotating motor is fixed at the center of the frame, the output shaft of the rotating motor is fixedly supported by a tray, the tray is symmetrically supported by two supporting vertical shafts with the output shaft as the symmetry center, cylindrical gears are fixed on the outside of the shaft body of the supporting vertical shafts, the frame is located on the outside of the tray and is fixed with an inner gear ring, the two cylindrical gears are respectively meshed with the inner tooth grooves of the inner gear ring, a horizontal bevel gear is fixed on the top of the supporting vertical shaft, a vertical plate is symmetrically fixed to the tray, the upper part of the vertical plate is supported by a driven horizontal shaft, one end of the driven horizontal shaft is fixed with a vertical bevel gear, and the other end is fixed with a grinding brush. The structural design of the present invention is scientific and reasonable, the two grinding brushes are rotating while also revolving, the oxide film on the surface of the electric heating tube contact located between the two grinding brushes is evenly stressed, the grinding effect is good, and the efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a grinding device and a grinding method for a contact of an electric heating tube. Background Art

[0002] In the prior art, the polishing of the contacts of the electric heating tube mainly adopts two methods: chemical method and mechanical method. The chemical method includes three acid (sulfuric acid + nitric acid + hydrochloric acid) pickling, nitric acid + hydrofluoric acid pickling, and alkali boiling. The chemical method has the problems of high cost and large pollution. The mechanical method is to remove the oxide scale manually. This removal method requires special personnel to operate. Although there is no technical requirement, the disadvantage is that it increases the labor cost of the enterprise invisibly, and also increases the work pressure of the staff. Moreover, when removing by manual method, the uniformity of removal cannot be guaranteed. This will also make the quality of the workpiece uneven, and the quality of the product cannot be guaranteed, and the manual production efficiency is also relatively low.

[0003] To this end, the patent specification with publication number CN109277915A discloses a grinding device and a grinding method for the contact of an electric heating tube, including a grinding mechanism and a conveying mechanism connected to each other, wherein the column in the conveying mechanism is connected to the shaft through bearings and bearing seats, the shaft is connected to the conveyor belt, and the conveyor belt is evenly distributed with multiple groups of double-hole structures; the two outer frames in the grinding mechanism are arranged in a "[]" shape on both sides of the conveyor belt, and the upper end of the outer frame is connected to an iron brush through a slider, so that the two opposite iron brushes in each group cooperate with the double-hole structure on the conveyor belt.

[0004] However, the above-mentioned grinding equipment and grinding method for the electric heating tube contact have shortcomings. First, two sets of steel brushes are used for grinding. The first set of steel brushes rotates one clockwise and the other counterclockwise; the second set of steel brushes rotates one counterclockwise and the other clockwise. The electrode heads to be ground pass through the middle of the two sets of steel brushes respectively. The steel brushes rotate at high speed to grind the electrode heads. The friction force of the steel brushes on the oxide film at different positions on the surface of the electrode heads is different, resulting in some oxide films that cannot be removed and some over-grinding, which has very low efficiency. Second, the machine is large in size and complex in structure. It cannot grind electrode heads that are too small or too thin, and has poor applicability. Summary of the invention

[0005] The purpose of the present invention is to overcome the above problems existing in the conventional technology and to provide a grinding device and a grinding method for the contact of an electric heating tube.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] A grinding device for electric heating tube contacts comprises a frame, a rotating motor is fixed at the center of the frame, the output shaft of the rotating motor is fixedly supported by a tray, the tray is symmetrically rotatably supported with two supporting vertical shafts around the output shaft as the symmetry center, cylindrical gears are fixed on the outside of the shaft body of the supporting vertical shafts, the frame is located on the outside of the tray and is fixed with an internal gear ring, the two cylindrical gears are respectively meshed with the internal tooth grooves of the internal gear ring, a horizontal bevel gear is fixed to the top of the supporting vertical shaft, a vertical plate is symmetrically fixed to the tray, a driven horizontal shaft is rotatably supported on the upper part of the vertical plate, a vertical bevel gear meshed with the horizontal bevel gear is fixed to one end of the driven horizontal shaft, and a removable and replaceable grinding brush is fixed to the other end.

[0008] Furthermore, in the above-mentioned polishing equipment for the electric heating tube contact, the tray is provided with a support bearing for supporting the rotation of the vertical axis.

[0009] Furthermore, in the above-mentioned grinding device for the electric heating tube contact, a positioning bearing is provided in the vertical plate to facilitate the rotation of the driven horizontal axis.

[0010] Furthermore, in the above-mentioned grinding device for the electric heating tube contact, a horizontal plate is vertically fixed to the outer side of the vertical plate, and a guide bearing is provided in the horizontal plate to facilitate supporting the rotation of the vertical axis.

[0011] Furthermore, in the above-mentioned electric heating tube contact polishing equipment, the tray, the vertical plate and the horizontal plate are made of stainless steel material and fixed by welding.

[0012] Furthermore, in the above-mentioned electric heating tube contact polishing equipment, the horizontal bevel gear and the vertical bevel gear constitute a right-angle steering gear set.

[0013] Furthermore, in the above-mentioned grinding device for the electric heating tube contact, a gap is left between the two grinding brushes to facilitate the electric heating tube contact to be inserted in the vertical direction.

[0014] Furthermore, in the above-mentioned grinding device for the electric heating tube contact, a chip box for collecting grinding dust is fixed to the outer side of the tray.

[0015] Furthermore, in the above-mentioned grinding equipment for the electric heating tube contact, the chip box includes a box body, a drawer box and a mounting plate, the drawer box is slidably connected to the box body, the lower end of the box body is fixed to the tray through the mounting plate, and through holes cooperating with the driven horizontal axis are provided on both sides of the upper part of the box body, and a material hole for conveniently removing the electric heating tube contact is provided at the top end.

[0016] A method for polishing an electric heating tube contact comprises the following steps:

[0017] 1) Check the grinding equipment and power status, make sure there is no foreign matter in the equipment, and turn on the power after everything is normal;

[0018] 2) Insert the electric heating tube contact into the upper hole of the equipment until the contact touches the grinding brush;

[0019] 3) Start the rotating motor, the rotating motor drives the tray to rotate, the tray drives the cylindrical gear to rotate through the supporting vertical shaft, the cylindrical gear meshes with the inner gear ring and revolves with the output shaft of the rotating motor, the horizontal bevel gear is connected with the cylindrical gear through the supporting vertical shaft and revolves together, the horizontal bevel gear meshes with the vertical bevel gear, so that the vertical bevel gear rotates, so that the grinding brush fixed on the driven horizontal shaft grinds the electric heating tube contact;

[0020] 4) After polishing, pull out the heating tube contacts.

[0021] The beneficial effects of the present invention are:

[0022] The structural design of the present invention is scientific and reasonable. On the one hand, the two grinding brushes rotate while also revolving, and the oxide film on the surface of the electric heating tube contact between the two grinding brushes is evenly stressed, which is conducive to maintaining the roundness of the contact, and the grinding effect is good and the efficiency is high. On the other hand, the overall volume of the equipment is small, and it can grind relatively small electric heating tube contacts, and it has high applicability.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure viewed from above after sectioning along AA;

[0027] Figure 3 It is a schematic diagram of the use state of the chip box in the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the chip box in the present invention;

[0029] In the accompanying drawings, the reference numerals of the various components are as follows:

[0030] 1-frame, 2-rotating motor, 3-tray, 4-support vertical shaft, 5-column gear, 6-inner gear ring, 7-horizontal bevel gear, 8-vertical bevel gear, 9-driven horizontal shaft, 10-grinding brush, 11-vertical plate, 12-horizontal plate, 13-chip box, 131-box body, 132-drawer box, 133-mounting plate, 134-perforation, 135-material hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-4 As shown, this embodiment is a grinding device for electric heating tube contacts, including a frame 1, a rotating motor 2 is fixed at the center of the frame 1, and a tray 3 is fixedly supported on the output shaft of the rotating motor 2. The tray 3 symmetrically rotates and supports two supporting vertical shafts 4 with the output shaft as the symmetry center, and a cylindrical gear 5 is fixed on the outside of the shaft body of the supporting vertical shaft 4. The frame 1 is located on the outside of the tray 3 and is fixed with an inner gear ring 6. The two cylindrical gears 5 are respectively meshed with the inner tooth grooves of the inner gear ring 6. A horizontal bevel gear 7 is fixed to the top of the supporting vertical shaft 4, and a vertical plate 11 is symmetrically fixed to the tray 3. The upper part of the vertical plate 11 is rotatably supported by a driven horizontal shaft 9. A vertical bevel gear 8 meshing with the horizontal bevel gear 7 is fixed to one end of the driven horizontal shaft 9. The horizontal bevel gear 7 and the vertical bevel gear 8 constitute a right-angle steering gear set. A detachable and replaceable grinding brush 10 is fixed to the other end of the driven horizontal shaft 9. A gap is left between the two grinding brushes 10 to facilitate the insertion of the electric heating tube contact in the vertical direction. The grinding brush 10 is a steel brush.

[0033] In this embodiment, the tray 3 is provided with a support bearing for supporting the rotation of the vertical shaft 4. The vertical plate 11 is provided with a positioning bearing for facilitating the rotation of the driven horizontal shaft 9. A horizontal plate 12 is vertically fixed to the outer side of the vertical plate 11, and the horizontal plate 12 is provided with a guide bearing for supporting the rotation of the vertical shaft 4.

[0034] In this embodiment, the tray 3, the vertical plate 11 and the horizontal plate 12 are made of stainless steel and fixed by welding.

[0035] In this embodiment, the grinding brush 10 is fixed to the driven horizontal shaft 9 by screw connection or clamping, and can be quickly replaced when it is worn out due to long-term use.

[0036] In this embodiment, a chip box 13 for collecting grinding dust is fixed on the outside of the tray 3. The chip box 13 includes a box body 131, a drawer box 132 and a mounting plate 133. The drawer box 132 matching its shape is slidably connected in the box body 131, and the lower end of the box body 131 is fixed to the tray 3 through the mounting plate 133. The box body 131 is in a "convex" shape, and the two sides of the protruding upper part are provided with through holes 134 matching the driven horizontal axis 9, and the top of the upper part is provided with a material hole 135 for conveniently taking out the contact of the electric heating tube.

[0037] This embodiment also provides a method for polishing a contact of an electric heating tube, comprising the following steps:

[0038] 1) Check the grinding equipment and power status, make sure there is no foreign matter in the equipment, and turn on the power after everything is normal;

[0039] 2) Insert the electric heating tube contact into the upper hole of the equipment until the contact touches the grinding brush 10;

[0040] 3) Start the rotating motor, the rotating motor 2 drives the tray 3 to rotate, the tray 3 drives the cylindrical gear 5 to rotate through the supporting vertical shaft 4, the cylindrical gear 5 meshes with the inner gear ring 6 and revolves with the output shaft of the rotating motor 2, the horizontal bevel gear 7 is connected to the cylindrical gear 5 through the supporting vertical shaft 4 and revolves together, the horizontal bevel gear 7 meshes with the vertical bevel gear 8, so that the vertical bevel gear 8 rotates, so that the grinding brush 10 fixed on the driven horizontal shaft 9 grinds the electric heating tube contact;

[0041] 4) After polishing, pull out the heating tube contacts.

[0042] A specific application of this embodiment is: the structural design of this embodiment is scientific and reasonable. On the one hand, the two grinding brushes 10 are rotating while also revolving. The oxide film on the surface of the electric heating tube contact between the two grinding brushes 10 is evenly stressed, which is conducive to maintaining the roundness of the contact, with good grinding effect and high efficiency. On the other hand, the overall volume of the equipment is small, and it can grind relatively small electric heating tube contacts, with high applicability. All parts of the entire equipment are detachable, and most of them use standard parts. If any part is worn or lost, the corresponding standard parts can be easily found for replacement, thereby reducing the difficulty of repair.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A grinding device for electric heating tube contacts, comprising a frame, characterized in that: A rotating motor is fixed at the center of the frame, and the output shaft of the rotating motor is fixedly supported by a tray, and the tray is symmetrically rotatably supported with two supporting vertical shafts with the output shaft as the symmetry center, and a cylindrical gear is fixed on the outside of the shaft body of the supporting vertical shaft, and the frame is fixed with an internal gear ring on the outside of the tray, and the two cylindrical gears are respectively meshed with the internal tooth grooves of the internal gear ring, and a horizontal bevel gear is fixed to the top of the supporting vertical shaft, and a vertical plate is symmetrically fixed to the tray, and a driven horizontal shaft is rotatably supported on the upper part of the vertical plate, and a vertical bevel gear meshed with the horizontal bevel gear is fixed to one end of the driven horizontal shaft, and a grinding brush that can be removed and replaced is fixed to the other end; The horizontal bevel gear and the vertical bevel gear constitute a right-angle steering gear set; A gap is left between the two grinding brushes to facilitate the insertion of the electric heating tube contact in the vertical direction; A chip box for collecting grinding dust is fixed on the outer side of the tray; The chip box includes a box body, a drawer box and a mounting plate. The drawer box is slidably connected to the box body. The lower end of the box body is fixed to the tray through the mounting plate. Through holes cooperating with the driven horizontal axis are provided on both sides of the upper part of the box body, and a material hole for conveniently removing the contacts of the electric heating tube is provided at the top of the upper part.

2. The grinding device for the electric heating tube contact according to claim 1, characterized in that: The tray is provided with a supporting bearing for supporting the rotation of the vertical shaft.

3. The grinding device for the electric heating tube contact according to claim 1, characterized in that: The vertical plate is provided with a positioning bearing for facilitating the rotation of the driven horizontal shaft.

4. The grinding device for the electric heating tube contact according to claim 1, characterized in that: A horizontal plate is vertically fixed on the outer side of the vertical plate, and a guide bearing for supporting the rotation of the vertical shaft is arranged in the horizontal plate.

5. The grinding device for the electric heating tube contact according to claim 1, characterized in that: The tray, the vertical plate and the horizontal plate are made of stainless steel and fixed by welding.

6. A method for grinding a contact of an electric heating tube, using the grinding device according to any one of claims 1 to 5, characterized in that: The steps include: 1) Check the grinding equipment and power status, make sure there is no foreign matter in the equipment, and turn on the power after everything is normal; 2) Insert the electric heating tube contact into the upper hole of the equipment until the contact touches the grinding brush; 3) Start the rotating motor, which drives the tray to rotate. The tray drives the cylindrical gear to rotate through the supporting vertical shaft. The cylindrical gear meshes with the inner gear ring and revolves with the output shaft of the rotating motor. The horizontal bevel gear is connected to the cylindrical gear through the supporting vertical shaft and revolves together. The horizontal bevel gear meshes with the vertical bevel gear, so that the vertical bevel gear rotates, so that the grinding brush fixed on the driven horizontal shaft grinds the contact of the electric heating tube; 4) After grinding, pull out the heating tube contacts.

Images