Positioning and clamping mechanism for circular ring part polishing

Abstract

The utility model discloses a locating and clamping mechanism for polishing circular ring type parts, and relates to the technical field of part clamps, the locating and clamping mechanism comprises a bottom plate, the left end and the right end of the bottom plate are respectively provided with an outer clamping part, the two outer clamping parts are distributed in a bilateral symmetry mode, and a circular through groove is formed in the middle of the lower end of the bottom plate; a lifting component is jointly installed on the front portion and the rear portion of the lower end of the bottom plate, a circular truncated cone is movably arranged in the circular through groove in a sleeved mode, an inner clamping component is installed at the lower end of the circular truncated cone, and two second rectangular through grooves distributed in a bilateral symmetry mode are formed in the upper end of the circular truncated cone; first rectangular through grooves are formed in the left portion and the right portion of the upper end of the bottom plate correspondingly, a circular groove is formed in the middle of the upper end of the bottom plate, the outer surface, the inner surface and the outer surface of the circular ring part can be alternately clamped through joint cooperation of the outer clamping component, the inner clamping component and the lifting component, other clamping devices do not need to be replaced, operation is easy, and practicability is high. And the working efficiency and the flexibility of equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts clamps, in particular to a positioning clamping mechanism for polishing annular parts. Background Art

[0002] During the production of rings, a large number of burrs are generated on the surface of the ring workpiece due to the manufacturing process. Burrs are thorns or flash formed at the intersection of the surface of the part. The existence of burrs will cause the entire mechanical system to not work properly, reducing reliability and stability and directly affecting the quality of the product. Therefore, it is necessary to deburr the ring workpiece to improve the quality of the product. When polishing the ring parts, it is necessary to use a positioning clamping mechanism to fix the parts.

[0003] The prior art (publication number: CN 214054867 U) discloses a clamping and positioning device for workpiece polishing, which belongs to the field of positioning devices, and comprises a base, a turntable is rotatably connected to the upper end of the base, a workbench is fixedly connected to the upper end of the turntable, mounting plates are evenly fixedly connected around the workbench, moving blocks are movably sleeved on the surfaces of the four mounting plates, the right ends of the four moving blocks are all chiseled with I-shaped grooves, the four mounting plates are all "I"-shaped, the four I-shaped grooves are matched with the four mounting plates respectively, the adjacent ends of the four moving blocks are fixedly connected with long rods, the upper ends of the four mounting plates are fixedly connected with fixed blocks, the four long rods respectively movably penetrate the adjacent ends of the four fixed blocks and extend inwards, the adjacent ends of the four fixed blocks are fixedly connected with first limit plates, and the adjacent ends of the four first limit plates are provided with telescopic rods.

[0004] Although the four rubber blocks of the above patent can move flexibly to clamp workpieces of different sizes, there are the following disadvantages: the device can only fix the outer surface of the workpiece. When grinding a circular ring workpiece, only the non-clamping area of ​​the part can be ground. Since the outer surface of the workpiece is clamped, the outer surface of the workpiece cannot be ground, and other clamping devices need to be replaced. The process of replacing the clamping device is relatively cumbersome, which affects work efficiency and reduces the flexibility of the equipment. Further improvement is needed. For this reason, we propose a positioning clamping mechanism for polishing circular ring parts. Utility Model Content

[0005] The main purpose of the utility model is to provide a positioning clamping mechanism for polishing annular parts, which can effectively solve the problem that the clamping mechanism cannot fix the inner and outer surfaces of the annular parts.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A positioning and clamping mechanism for polishing annular parts comprises a base plate, the left and right ends of the base plate are both equipped with external clamping components, the two external clamping components are symmetrically distributed, a circular through groove is opened in the middle of the lower end of the base plate, the lower front and rear parts of the base plate are jointly equipped with a lifting component, a round table is movably sleeved in the circular through groove, the lower end of the round table is equipped with an internal clamping component, the upper end of the round table is provided with two second rectangular through grooves symmetrically distributed on the left and right, the upper left and right parts of the base plate are both equipped with a first rectangular through groove, the upper middle part of the base plate is equipped with a circular groove, and a dust suction component is installed at the rear end of the base plate, and the dust suction component extends into the circular groove.

[0008] Preferably, the inner clamping component includes a bidirectional cylinder, which is installed at the lower end of the truncated table. Two movable plates are installed at the output end of the bidirectional cylinder. The upper ends of the two movable plates extend into two second rectangular through grooves respectively and are fixedly connected with internal fixed blocks.

[0009] Preferably, the lifting component includes a bracket, which is installed at the front and rear lower ends of the base plate, and an electric cylinder is installed at the lower end of the bracket, and the output end of the electric cylinder movably passes through the lower wall of the bracket and is fixedly connected to the lower end of the table.

[0010] Preferably, the external clamping component includes a motor, which is mounted on the base plate. The output end of the motor is movably inserted into the first rectangular through groove and fixedly connected to a screw rod. A moving block is threadedly sleeved on the outer surface of the screw rod. An external fixed block is installed on the upper end of the moving block. The end of the screw rod away from the motor is movably connected to the first rectangular through groove.

[0011] Preferably, the dust collection component includes a collecting box and a hollow ring, the collecting box is installed at the rear end of the base plate, a filter is provided inside the collecting box, an air pump is installed at the upper end of the collecting box, the suction end of the air pump extends into the collecting box, the hollow ring is arranged in a circular groove, the hollow ring is communicated with the collecting box, and a plurality of through holes are provided at the upper end and the inner cylindrical surface of the hollow ring.

[0012] Preferably, there is a gap between the outer surface of the truncated cone and the inner cylindrical surface of the hollow ring.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting the outer clamping component, the inner clamping component and the lifting component to cooperate with each other, the outer surface and the inner and outer surfaces of the circular ring part can be alternately clamped. During polishing, the circular ring is placed above the hollow ring, and the two conveying ends of the two-way air cylinder are controlled to extend to drive the two moving plates to move away from each other. The two moving plates respectively drive the inner fixing blocks to fix the inner surface of the circular ring, and then the non-clamping part of the circular ring is polished by the polishing device. When it is necessary to polish the outer surface of the circular ring, the two conveying ends of the two-way air cylinder are controlled to shorten so that the inner fixing block is away from the inner surface of the circular ring, and the output ends of the two motors are controlled to rotate so that the two moving blocks are close to each other. The two moving blocks respectively drive the two outer fixing blocks to fix the outer surface of the circular ring. At the same time, the output end of the electric cylinder is controlled to shorten to drive the round table and the inner clamping component to move downward, so that the inner surface of the circular ring can be polished without replacing other clamping devices. The operation is simple, and the work efficiency and equipment flexibility are improved.

[0015] 2. The dust generated by grinding can be absorbed by setting a dust suction component. When grinding, turn on the power of the air pump, and the suction end of the air pump forms a negative pressure in the hollow ring through the collection box. The dust generated by grinding is sucked into the hollow ring through the through hole, and then enters the collection box, avoiding dust accumulation above the bottom plate and the truncated table, ensuring that the external fixing block and the internal fixing block can move normally, and reducing the damage to the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the entire structure proposed in this embodiment;

[0017] Figure 2 is another perspective structural schematic diagram of this embodiment;

[0018] Figure 3 This is a schematic diagram of the structure of the inner and outer clamping components in this embodiment;

[0019] Figure 4 Schematic diagram of the structure of the dust collection component in this embodiment.

[0020] In the figure: 1, bottom plate; 2, lifting component; 3, first rectangular through groove; 4, outer clamping component; 5, dust collecting component; 6, circular groove; 7, circular through groove; 8, truncated cone; 9, second rectangular through groove; 10, inner clamping component; 101, two-way cylinder; 102, moving plate; 103, inner fixing block; 21, bracket; 22, electric cylinder; 41, motor; 42, moving block; 43, screw rod; 44, outer fixing block; 51, collecting box; 52, filter screen; 53, through hole; 54, air pump; 55, hollow ring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-Figure 4 As shown, a positioning and clamping mechanism for polishing annular parts comprises a base plate 1, outer clamping parts 4 are installed at the left and right ends of the base plate 1, and the two outer clamping parts 4 are symmetrically distributed. A circular through groove 7 is opened in the middle of the lower end of the base plate 1, and a lifting part 2 is installed together at the front and rear parts of the lower end of the base plate 1. A round table 8 is movably sleeved in the circular through groove 7, and an inner clamping part 10 is installed at the lower end of the round table 8. Two second rectangular through grooves 9 symmetrically distributed on the left and right are opened at the upper end of the base plate 1, a first rectangular through groove 3 is opened at the upper left and upper right parts of the base plate 1, a circular groove 6 is opened in the middle of the upper end of the base plate 1, and a dust suction part 5 is installed at the rear end of the base plate 1, and the dust suction part 5 extends into the circular groove 6.

[0025] The outer clamping component 4, the inner clamping component 10 and the lifting component 2 cooperate with each other to alternately clamp the outer surface and the inner and outer surfaces of the circular ring part, so as to facilitate the grinding of the inner and outer surfaces of the circular ring without replacing other clamping devices. The operation is simple, and the working efficiency and flexibility of the equipment are improved. The specific structure is as follows: the inner clamping component 10 includes a two-way cylinder 101, which is installed at the lower end of the round table 8. Two movable plates 102 are installed at the output end of the two-way cylinder 101. The upper ends of the two movable plates 102 extend into the two second rectangular through grooves 9 respectively and are fixedly connected with an inner fixing block 103. The lower end of the inner fixing block 103 is in active contact with the upper end of the round table 8. The lifting component 2 includes a bracket 21. The bracket 21 is installed at the front and rear of the lower end of the base plate 1, and an electric cylinder 22 is installed at the lower end of the bracket 21. The output end of the electric cylinder 22 movably penetrates the lower wall of the bracket 21 and is fixedly connected to the lower end of the truncated table 8; the external clamping component 4 includes a motor 41, and the motor 41 is installed on the base plate 1. The output end of the motor 41 is movably inserted into the first rectangular through groove 3 and is fixedly connected with a screw rod 43. The outer surface of the screw rod 43 is threadedly sleeved with a moving block 42, and the upper end of the moving block 42 is installed with an external fixed block 44. The end of the screw rod 43 away from the motor 41 is movably connected to the first rectangular through groove 3, and the screw rod 43 is movably connected to the first rectangular through groove 3 through a bearing, and the lower end of the external fixed block 44 is movably contacted with the upper end of the base plate 1.

[0026] During polishing, in order to prevent dust from accumulating above the base plate 1 and the truncated cone 8 and affecting the normal movement of the outer fixing block 44 and the inner fixing block 103, the dust generated by the grinding is absorbed by the dust suction component 5. The specific structure is as follows: the dust suction component 5 includes a collection box 51 and a hollow ring 55. The collection box 51 is installed at the rear end of the base plate 1. A detachable cover is provided at the lower end of the collection box 51. A filter screen 52 is provided inside the collection box 51. The filter screen 52 is used to isolate the dust in the collection box 51. An air pump 54 is installed at the upper end of the collection box 51. The suction end of the air pump 54 extends into the collection box 51. The hollow ring 55 is arranged in the circular groove 6. The hollow ring 55 is communicated with the collection box 51. There are several through holes 53 at the upper end and the inner cylindrical surface of the hollow ring 55.

[0027] In order to facilitate the up and down movement of the truncated cone 8 , there is a gap between the outer surface of the truncated cone 8 and the inner cylindrical surface of the hollow ring 55 .

[0028] The utility model provides a positioning and clamping mechanism for polishing annular parts. When in use, the annular ring is placed above the hollow ring 55, and the two conveying ends of the bidirectional cylinder 101 are controlled to extend to drive the two moving plates 102 to move away from each other. The two moving plates 102 respectively drive the inner fixing blocks 103 to fix the inner surface of the annular ring, and then the non-clamping part of the annular ring is polished by the polishing device. When the outer surface of the annular ring needs to be polished, the two conveying ends of the bidirectional cylinder 101 are controlled to shorten to make the inner fixing block 103 away from the inner surface of the annular ring, and the output ends of the two motors 41 are controlled to rotate so that the two moving blocks 42 The two movable blocks 42 are close to each other, and respectively drive the two outer fixed blocks 44 to fix the outer surface of the ring. At the same time, the output end of the electric cylinder 22 is controlled to shorten, and the truncated table 8 and the inner clamping component 10 are driven to move downward, so that the inner surface of the ring can be polished. During polishing, the power supply of the air pump 54 is turned on, and the suction end of the air pump 54 forms a negative pressure in the hollow ring 55 through the collecting box 51. The dust generated by polishing is sucked into the hollow ring 55 through the through hole 53, and then enters the collecting box 51, avoiding the accumulation of dust above the bottom plate 1 and the truncated table 8, and ensuring that the outer fixed block 44 and the inner fixed block 103 can move normally.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning and clamping mechanism for polishing annular parts, comprising a base plate (1), characterized in that: The left and right ends of the base plate (1) are both provided with external clamping components (4), and the two external clamping components (4) are symmetrically distributed on the left and right sides. A circular through groove (7) is provided in the middle of the lower end of the base plate (1), and a lifting component (2) is commonly installed at the front and rear parts of the lower end of the base plate (1). A round table (8) is movably sleeved in the circular through groove (7), and an internal clamping component (10) is installed at the lower end of the round table (8). The upper end of the round table (8) is provided with two second rectangular through grooves (9) symmetrically distributed on the left and right sides. The upper left and right parts of the base plate (1) are both provided with first rectangular through grooves (3), and the upper middle part of the base plate (1) is provided with a circular groove (6). A dust suction component (5) is installed at the rear end of the base plate (1), and the dust suction component (5) extends into the circular groove (6).

2. The positioning and clamping mechanism for polishing annular parts according to claim 1, characterized in that: The inner clamping component (10) comprises a bidirectional cylinder (101), the bidirectional cylinder (101) being mounted at the lower end of the truncated table (8), two movable plates (102) being mounted at the output end of the bidirectional cylinder (101), the upper ends of the two movable plates (102) respectively extending into two second rectangular through grooves (9) and being fixedly connected to an inner fixing block (103).

3. The positioning and clamping mechanism for polishing annular parts according to claim 2, characterized in that: The lifting component (2) comprises a bracket (21), the bracket (21) being mounted at the front and rear lower ends of the base plate (1), an electric cylinder (22) being mounted at the lower end of the bracket (21), the output end of the electric cylinder (22) movably passing through the lower wall of the bracket (21) and being fixedly connected to the lower end of the round table (8).

4. The positioning and clamping mechanism for polishing annular parts according to claim 1, characterized in that: The outer clamping component (4) comprises a motor (41), the motor (41) being mounted on the bottom plate (1), the output end of the motor (41) being movably inserted into the first rectangular through slot (3) and being fixedly connected to a screw rod (43), the outer surface of the screw rod (43) being threadedly sleeved with a moving block (42), the upper end of the moving block (42) being mounted with an outer fixed block (44), and the end of the screw rod (43) away from the motor (41) being movably connected to the first rectangular through slot (3).

5. The positioning and clamping mechanism for polishing annular parts according to claim 1, characterized in that: The dust collecting component (5) comprises a collecting box (51) and a hollow ring (55); the collecting box (51) is mounted at the rear end of the bottom plate (1); a filter screen (52) is arranged inside the collecting box (51); an air pump (54) is mounted at the upper end of the collecting box (51); the air suction end of the air pump (54) extends into the collecting box (51); the hollow ring (55) is arranged in a circular groove (6); the hollow ring (55) is communicated with the collecting box (51); and a plurality of through holes (53) are provided at the upper end and the inner cylindrical surface of the hollow ring (55).

6. The positioning and clamping mechanism for polishing annular parts according to claim 5, characterized in that: There is a gap between the outer surface of the truncated cone (8) and the inner cylindrical surface of the hollow ring (55).

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