Automatic sand throwing device for commutator segments

Abstract

The utility model relates to the technical field of commutator processing, and discloses an automatic sand-reversing device for commutator segments, comprising a processing table, a reversing mechanism is arranged on the top of the processing table, a supporting mechanism is arranged on the front side of the top of the processing table, the reversing mechanism comprises a fixing component and a reversing component, the fixing component is arranged on the top of the processing table, and the reversing component is arranged on the rear side of the top of the processing table. When in use, the reversing mechanism can clamp and fix commutator segments of different sizes under the action of a clamp, a second servo motor and a first rotating rod, and can drive the commutator segments to rotate, and reversing work can be performed on the upper and lower sides of the commutator segments at the same time, and under the action of a grinding disc, the upper and lower sides of the commutator segments can be polished and sanded, and during the polishing and sanding process, under the action of a worm gear and a worm, the grinding disc can be driven to adjust the angle.

Description

Technical Field

[0001] The utility model relates to the technical field of commutator processing, in particular to an automatic sand-reversing device for commutator segments. Background Art

[0002] The commutator, commonly known as the rectifier, is a component on a DC permanent magnet series-excited motor that allows the motor to continue rotating. The commutator is surrounded by several contact plates in a circle, which are respectively connected to each contact on the motor rotor. The two electrodes connected on the outside are called brushes. In the production process of the commutator, the upper and lower ends need to be chamfered, polished and sanded. In the existing technology, manual operation is mainly used, that is, people hold the commutator and polish and sand it on a polishing machine and sanding machine. The efficiency is low and there are safety hazards, which affects the processing efficiency.

[0003] According to the description in an automated polishing device for automobile commutator production published on the patent website (authorization announcement number: CN220296794U), the automated polishing device for automobile commutator production includes a "base plate, a connecting frame, a polishing brush", etc., to polish the commutator.

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] The automated polishing device for automobile commutator production utilizes a base plate, a connecting frame, a polishing brush, etc. to polish the commutator. When the device is in use, the commutator is placed on the outside of a stabilizing column and a rod is inserted into a slot. This fixing method can only fix commutators of a fixed size, and when the other side of the commutator needs to be polished, the staff is required to manually adjust the direction of the commutator, which is inefficient. Therefore, the device needs to be improved. Utility Model Content

[0006] The utility model aims to provide an automatic sand-returning device for commutator segments to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic sand back-throwing device for a commutator segment, comprising a processing table, a back-throwing mechanism is arranged on the top of the processing table, and a supporting mechanism is arranged on the front side of the top of the processing table;

[0008] The inverted throwing mechanism includes a fixed component and an inverted throwing component, wherein the fixed component is arranged on the top of the processing table, and the inverted throwing component is arranged on the rear side of the top of the processing table;

[0009] The fixing assembly includes a first servo motor, which is fixedly connected to the right side of the processing table, a bidirectional threaded rod is fixedly connected to the left side of the first servo motor, the left side of the bidirectional threaded rod is rotatably connected to the inside of the processing table, the outer periphery of the bidirectional threaded rod is threadedly connected to a load-bearing plate, a second servo motor is fixedly connected to the right side of the load-bearing plate, a first rotating rod is fixedly connected to the left side of the second servo motor, the first rotating rod is rotatably connected to the inside of the load-bearing plate, a connecting plate is fixedly connected to the left side of the first rotating rod, an arc block is fixedly connected to the right side of the connecting plate, the arc block is slidably connected to the left side of the load-bearing plate, and a splint is fixedly connected to the left side of the connecting plate.

[0010] Preferably, a circular groove is opened on the left side of the load-bearing plate, and the arc block is slidably connected in the circular groove, so that the circular groove can limit the arc block, and the arc block can support and limit the connecting plate.

[0011] Preferably, the clamping plate is in an arc shape, and a wear-resistant and anti-skid pad is provided on the inner side of the clamping plate, so that commutator segments of different sizes can be clamped and fixed by the clamping plate.

[0012] Preferably, the inverted throwing assembly includes a first cylinder, which is fixedly connected to the rear side of the processing table, a fixed frame is fixedly connected to the front side of the first cylinder, the bottom of the fixed frame is slidably connected to the top of the processing table, the top of the fixed frame is fixedly connected to the second cylinder, the bottom of the second cylinder is fixedly connected to a load-bearing seat, the load-bearing seat is slidably connected in the fixed frame, the left side of the load-bearing seat is fixedly connected to a fixing plate, the rear side of the fixing plate is fixedly connected to a third servo motor, the front side of the third servo motor is fixedly connected to a worm, the worm is rotatably connected to the inside of the fixing plate, the top of the worm is meshed with a worm wheel, the worm wheel is fixedly connected to a second rotating rod, the second rotating rod is rotatably connected to the inside of the load-bearing seat, the outer periphery of the second rotating rod is fixedly connected to a rectangular frame, the rectangular frame is fixedly connected to a fourth servo motor, the front side of the fourth servo motor is fixedly connected to the third rotating rod, and the front side of the third rotating rod is fixedly connected to a grinding disc.

[0013] Preferably, a slide groove is provided on the top of the processing table, the bottom of the fixed frame is slidably connected to the slide groove, a limiting groove is provided in the fixed frame, and the load-bearing seat is slidably connected to the limiting groove, so that the slide groove and the limiting groove can respectively limit the fixed frame and the load-bearing seat, so that the movement of the fixed frame and the load-bearing seat is more stable.

[0014] Preferably, the supporting mechanism includes a fifth servo motor, the fifth servo motor is fixedly connected to the front side of the processing table, the rear side of the fifth servo motor is fixedly connected to a one-way threaded rod, the rear side of the one-way threaded rod is rotatably connected to the inside of the processing table, the outer periphery of the one-way threaded rod is threadedly connected to a moving seat, the top of the moving seat is fixedly connected to a third cylinder, and the top of the third cylinder is fixedly connected to a support plate.

[0015] Preferably, a movable groove is provided on the top of the processing table, the movable seat is slidably connected in the movable groove, and a wear-resistant protective pad is provided on the top of the support plate, so that the movable groove can limit the movable seat, so that the one-way threaded rod can drive the movable seat to move more stably.

[0016] Compared with the prior art, the utility model provides an automatic sand throwing device for commutator segments, which has the following beneficial effects:

[0017] 1. The automatic sanding and back-polishing device for the commutator commutator segments can clamp and fix commutator segments of different sizes under the action of the clamping plate, the second servo motor and the first rotating rod through the back-polishing mechanism, and can drive the commutator segments to rotate, and back-polish the upper and lower sides of the commutator segments at the same time, and under the action of the grinding disc, the upper and lower sides of the commutator segments can be polished and sanded. During the polishing and sanding process, under the action of the worm wheel and the worm, the grinding disc can be driven to adjust the angle, so that the upper and lower sides of the commutator segments can be chamfered, thereby realizing the chamfering, sanding and polishing of the commutator segments at the same time, thereby improving the processing efficiency of the commutator segments.

[0018] 2. The automatic sand-throwing device for the commutator segments can realize the support mechanism during the processing of the commutator segments. Under the action of the third cylinder and the support plate, the bottom of the commutator segments of different sizes can be supported, thereby ensuring that the commutator segments are in a stable state during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the reverse throwing mechanism;

[0022] Figure 3It is a schematic diagram of the fixed component structure;

[0023] Figure 4 It is a schematic diagram of the structure on the left side of the load-bearing plate;

[0024] Figure 5 It is a schematic diagram of the structure of the inverted throwing component;

[0025] Figure 6 It is a schematic diagram of the front structure of the fixed frame;

[0026] Figure 7 It is a schematic diagram of a rectangular frame cross-sectional structure;

[0027] Figure 8 Schematic diagram of the supporting mechanism structure.

[0028] In the figure: 1, processing table; 2, throwing mechanism; 3, supporting mechanism; 21, fixing assembly; 22, throwing assembly; 211, first servo motor; 212, load-bearing plate; 213, two-way threaded rod; 214, second servo motor; 215, first rotating rod; 216, arc block; 217, connecting plate; 218, clamping plate; 221, first cylinder; 222, fixing frame; 223, second cylinder; 224, bearing seat; 225, third servo motor; 226, fixing plate; 227, worm gear; 228, worm; 229, rectangular frame; 2291, second rotating rod; 2292, fourth servo motor; 2293, third rotating rod; 2294, grinding disc; 31, fifth servo motor; 32, one-way threaded rod; 33, moving seat; 34, third cylinder; 35, supporting plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The utility model provides the following technical solutions:

[0032] Embodiment 1

[0033] See also Figure 1-8 The utility model provides a technical solution: an automatic sand back-throwing device for a commutator segment, comprising a processing table 1, a back-throwing mechanism 2 is arranged on the top of the processing table 1, a supporting mechanism 3 is arranged on the front side of the top of the processing table 1, the back-throwing mechanism 2 comprises a fixing component 21 and a back-throwing component 22, the fixing component 21 is arranged on the top of the processing table 1, and the back-throwing component 22 is arranged on the rear side of the top of the processing table 1;

[0034] The fixing assembly 21 includes a first servo motor 211, which is fixedly connected to the right side of the processing table 1, a bidirectional threaded rod 213 is fixedly connected to the left side of the first servo motor 211, and the left side of the bidirectional threaded rod 213 is rotatably connected to the inside of the processing table 1, and the outer periphery of the bidirectional threaded rod 213 is threadedly connected to a load-bearing plate 212, and a second servo motor 214 is fixedly connected to the right side of the load-bearing plate 212, and a first rotating rod 215 is fixedly connected to the left side of the second servo motor 214, and the first rotating rod 215 is rotatably connected to the inside of the load-bearing plate 212, and a connecting plate 217 is fixedly connected to the left side of the connecting plate 217, and an arc block 216 is fixedly connected to the right side of the connecting plate 217, and the arc block 216 is slidably connected to the left side of the load-bearing plate 212, and a clamping plate 218 is fixedly connected to the left side of the connecting plate 217.

[0035] A circular groove is provided on the left side of the load-bearing plate 212, and the arc block 216 is slidably connected in the circular groove, so that the circular groove can limit the arc block 216, and the arc block 216 can support and limit the connecting plate 217. The clamping plate 218 is arc-shaped, and a wear-resistant and anti-slip pad is provided on the inner side of the clamping plate 218, so that the commutator segments of different sizes can be clamped and fixed by the clamping plate 218.

[0036] See also Figure 1-8The utility model provides a technical solution: the inverted throwing component 22 includes a first cylinder 221, the first cylinder 221 is fixedly connected to the rear side of the processing table 1, the front side of the first cylinder 221 is fixedly connected to a fixed frame 222, the bottom of the fixed frame 222 is slidably connected to the top of the processing table 1, the top of the fixed frame 222 is fixedly connected to a second cylinder 223, the bottom of the second cylinder 223 is fixedly connected to a load-bearing seat 224, the load-bearing seat 224 is slidably connected to the fixed frame 222, the left side of the load-bearing seat 224 is fixedly connected to a fixed plate 226, the rear side of the fixed plate 226 is fixedly connected to a third servo motor 225, the front side of the third servo motor 225 is fixedly connected to a worm 228, the worm 228 is rotatably connected to the inside of the fixed plate 226, the top of the worm 228 is meshed with a worm wheel 227, and the worm A second rotating rod 2291 is fixedly connected inside the wheel 227, and the second rotating rod 2291 is rotatably connected to the inside of the load-bearing seat 224. A rectangular frame 229 is fixedly connected to the periphery of the second rotating rod 2291, and a fourth servo motor 2292 is fixedly connected inside the rectangular frame 229. A third rotating rod 2293 is fixedly connected to the front side of the fourth servo motor 2292, and a grinding disc 2294 is fixedly connected to the front side of the third rotating rod 2293. A slide groove is provided on the top of the processing table 1, and the bottom of the fixed frame 222 is slidably connected to the slide groove. A limiting groove is provided in the fixed frame 222, and the load-bearing seat 224 is slidably connected to the limiting groove, so that the fixed frame 222 and the load-bearing seat 224 can be limited by the slide groove and the limiting groove respectively, so that the movement of the fixed frame 222 and the load-bearing seat 224 is more stable.

[0037] Embodiment 2

[0038] See also Figure 1-8 , and on the basis of the first embodiment, the supporting mechanism 3 further comprises a fifth servo motor 31, the fifth servo motor 31 is fixedly connected to the front side of the processing table 1, a one-way threaded rod 32 is fixedly connected to the rear side of the fifth servo motor 31, the rear side of the one-way threaded rod 32 is rotatably connected to the inside of the processing table 1, a movable seat 33 is threadedly connected to the outer periphery of the one-way threaded rod 32, a third cylinder 34 is fixedly connected to the top of the movable seat 33, a support plate 35 is fixedly connected to the top of the third cylinder 34, a movable groove is opened on the top of the processing table 1, the movable seat 33 is slidably connected in the movable groove, and a wear-resistant protective pad is arranged on the top of the support plate 35, so that the movable groove can limit the movable seat 33, so that the one-way threaded rod 32 drives the movable seat 33 to move more stably.

[0039] In actual operation, when the device is used, when the commutator needs to be reversed, the commutator is first placed on the top of the support plate 35, and the fifth servo motor 31 drives the movable seat 33 connected to the outer thread of the one-way threaded rod 32 to move back and forth in the movable groove on the top of the processing table 1, so that the commutator is on the inner side of the clamping plate 218, and at the same time, the third cylinder 34 drives the support plate 35 to rise and fall, and lifts the commutator to a suitable position inside the clamping plate 218, and then the first servo motor 211 drives the bearing seat 33 connected to the outer thread of the bidirectional threaded rod 213 to move forward and backward in the movable groove on the top of the processing table 1. The weight plate 212 moves left and right, and the spacing between the clamping plates 218 is adjusted, so that the inner side of the clamping plates 218 and the outer side of the commutator are in contact with each other, and the clamping plates 218 are located in the middle of the commutator, so that the upper and lower sides of the commutator are located outside the clamping plates 218, and the commutator is clamped and fixed. When the fixation is completed, the fixing frame 222 is driven to move forward and backward in the slide slot by the first cylinder 221, and the grinding disc 2294 is driven to move to a suitable position, and then the worm 228 is driven to rotate by the third servo motor 225, so that the worm 228 drives the third servo motor 227 fixedly connected to the worm wheel 227. The second rotating rod 2291 drives the rectangular frame 229 to rotate, so as to adjust the angle of the grinding disc 2294, so that the grinding disc 2294 is in a vertical state. At the same time, the second cylinder 223 drives the load-bearing seat 224 to rise and fall in the limit groove in the fixed frame 222, so that the bottom of the grinding disc 2294 and the top of the commutator segment contact each other, and then the fourth servo motor 2292 drives the grinding disc 2294 at the bottom of the third rotating rod 2293 to rotate, so as to polish and sand the commutator segment. Under the action of the worm 228 and the worm wheel 227, the grinding disc 2294 can be polished and sanded. By adjusting the angle of the grinding disc 2294, the top of the commutator segment can be chamfered. When the other side of the commutator segment needs to be processed, it is only necessary to drive the connecting plate 217 fixedly connected to the left side of the first rotating rod 215 to rotate through the second servo motor 214, so that the connecting plate 217 drives the commutator segment fixed on the inner side of the clamping plate 218 to rotate, and the same polishing, sanding and chamfering work can be performed on the other side of the commutator segment. The operation is efficient and convenient. When the commutator segment rotates, the support plate 35 can be kept away from the bottom of the commutator segment to avoid affecting the rotation of the commutator segment.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. An automatic sand-returning device for commutator segments, comprising a processing table (1), characterized in that: The top of the processing table (1) is provided with a throwing mechanism (2), and the front side of the top of the processing table (1) is provided with a supporting mechanism (3); The inverted throwing mechanism (2) comprises a fixed component (21) and an inverted throwing component (22), wherein the fixed component (21) is arranged on the top of the processing table (1), and the inverted throwing component (22) is arranged on the rear side of the top of the processing table (1); The fixing assembly (21) comprises a first servo motor (211), the first servo motor (211) is fixedly connected to the right side of the processing table (1), a bidirectional threaded rod (213) is fixedly connected to the left side of the first servo motor (211), the bidirectional threaded rod (213) is rotatably connected to the inside of the processing table (1) on the left side, the bidirectional threaded rod (213) is threadedly connected to a load-bearing plate (212) on the periphery of the bidirectional threaded rod (213), the right side of the load-bearing plate (212) is fixedly connected to a second servo motor (214), the left side of the second servo motor (214) is fixedly connected to a first rotating rod (215), the first rotating rod (215) is rotatably connected to the inside of the load-bearing plate (212), the left side of the first rotating rod (215) is fixedly connected to a connecting plate (217), the right side of the connecting plate (217) is fixedly connected to an arc block (216), the arc block (216) is slidably connected to the left side of the load-bearing plate (212), and the left side of the connecting plate (217) is fixedly connected to a clamping plate (218).

2. The automatic sand-returning device for commutator segments according to claim 1, characterized in that: A circular groove is provided on the left side of the load-bearing plate (212), and the arc block (216) is slidably connected in the circular groove.

3. The automatic sand-returning device for commutator segments according to claim 1, characterized in that: The clamping plate (218) is in an arc shape, and a wear-resistant and anti-skid pad is arranged on the inner side of the clamping plate (218).

4. The automatic sand-returning device for commutator segments according to claim 1, characterized in that: The inverted throwing assembly (22) comprises a first cylinder (221), the first cylinder (221) is fixedly connected to the rear side of the processing table (1), the front side of the first cylinder (221) is fixedly connected to a fixed frame (222), the bottom of the fixed frame (222) is slidably connected to the top of the processing table (1), the top of the fixed frame (222) is fixedly connected to a second cylinder (223), the bottom of the second cylinder (223) is fixedly connected to a bearing seat (224), the bearing seat (224) is slidably connected in the fixed frame (222), the left side of the bearing seat (224) is fixedly connected to a fixed plate (226), the rear side of the fixed plate (226) is fixedly connected to a third servo motor (225), the third servo motor ( A worm (228) is fixedly connected to the front side of the fixing plate (225), and the worm (228) is rotatably connected to the inside of the fixing plate (226). A worm wheel (227) is meshed on the top of the worm (228). A second rotating rod (2291) is fixedly connected to the inside of the worm wheel (227). The second rotating rod (2291) is rotatably connected to the inside of the load-bearing seat (224). A rectangular frame (229) is fixedly connected to the periphery of the second rotating rod (2291). A fourth servo motor (2292) is fixedly connected to the inside of the rectangular frame (229). A third rotating rod (2293) is fixedly connected to the front side of the fourth servo motor (2292), and a grinding disc (2294) is fixedly connected to the front side of the third rotating rod (2293).

5. The automatic sand-returning device for commutator segments according to claim 4, characterized in that: The top of the processing table (1) is provided with a slide groove, the bottom of the fixed frame (222) is slidably connected in the slide groove, the fixed frame (222) is provided with a limiting groove, and the load-bearing seat (224) is slidably connected in the limiting groove.

6. The automatic sand-returning device for commutator segments according to claim 1, characterized in that: The support mechanism (3) comprises a fifth servo motor (31), the fifth servo motor (31) is fixedly connected to the front side of the processing table (1), the rear side of the fifth servo motor (31) is fixedly connected to a one-way threaded rod (32), the rear side of the one-way threaded rod (32) is rotatably connected to the inside of the processing table (1), the outer periphery of the one-way threaded rod (32) is threadedly connected to a movable seat (33), the top of the movable seat (33) is fixedly connected to a third cylinder (34), and the top of the third cylinder (34) is fixedly connected to a support plate (35).

7. The automatic sand-returning device for commutator segments according to claim 6, characterized in that: A movable groove is provided on the top of the processing table (1), the movable seat (33) is slidably connected in the movable groove, and a wear-resistant protective pad is provided on the top of the support plate (35).

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