Annular part self-centering, self-clamping and self-detecting integrated tool

Abstract

The utility model discloses a self-centering, self-clamping and self-detecting integrated tool for an annular part, which relates to the technical field of machining and comprises a base, a rotary through hole is formed in the middle of the base; the rotating body is rotationally connected into the rotating through hole, and a first air channel and a second air channel are formed in the rotating body; and the supporting ring is arranged on the base, the top face of the supporting ring is used for supporting the lower end face of the part, an annular groove air channel is formed in the top face of the supporting ring, and the annular groove air channel communicates with the first air channel. According to the utility model, air is sprayed out through each positioning air channel, so that a part moves towards an air pressure center, automatic centering is completed, air pressure in each positioning air channel is detected at the same time, centering detection is carried out, the part is adsorbed and fixed through air extraction and negative pressure generation, and flatness detection can be carried out on the end face of the part at the same time. The air cylinder drives the fixing rod to rotate and press down to fix the part, the situation that the annular part is shrunken due to clamping is avoided, the part can rotate along with the base during part machining, and machining is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a self-centering, self-clamping and self-detecting integrated tooling for annular parts. Background Art

[0002] When machining ring parts, it is necessary to use measuring instruments such as dial indicators and micrometers to position the parts, that is, the measuring instruments are rotated around the axis of the ring parts, and the surface runout of the ring parts is detected by the measuring instruments to determine the axis of the parts. After the axis is determined, the parts are positioned through the core expansion structure or the clamping structure for subsequent processing.

[0003] The existing method of using measuring instruments such as dial indicators and micrometers is limited by the coaxiality and roundness requirements of parts and tooling. At the same time, the position of the parts needs to be adjusted manually to adjust the axis of the parts. Therefore, it is more troublesome to center the parts, and it is not easy to perform centering detection and end surface flatness detection on the parts. When the parts are fixed by the core expansion structure or the clamping structure, the parts are easily clamped and deformed due to stress release after the parts are processed. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes an integrated tooling for automatic centering, centering detection and end surface flatness detection of annular parts, which is not easy to damage the parts when fixing the parts.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A self-centering, self-clamping and self-detecting integrated tooling for annular parts, comprising:

[0007] A base, wherein a rotation through hole is provided in the middle thereof;

[0008] A rotating body, which is rotatably connected to the rotating through hole and has a first airway and a second airway disposed therein;

[0009] A support ring is arranged on the base, and the top surface of the support ring is used to support the lower end surface of the part, and the top surface of the support ring is provided with an annular groove air channel, and the annular groove air channel is connected with the first air channel;

[0010] A positioning ring is arranged on the supporting ring, and a plurality of positioning air channels are arranged around the inner wall of the positioning ring, the positioning air channels are connected with the second air channels, and each positioning air channel faces the outer wall of the part;

[0011] A plurality of gas pressure sensors, each gas pressure sensor is connected to a positioning airway to detect the pressure of each positioning airway;

[0012] And a plurality of fixing components, which are used for fixing the upper end surface of the part.

[0013] Furthermore, a plurality of first communicating air channels are provided in the positioning ring, and a plurality of second communicating air channels are provided in the supporting ring. Both ends of each first communicating air channel are respectively connected to a positioning air channel and a second communicating air channel, and one end of each second communicating air channel is connected to the second air channel.

[0014] Furthermore, a third annular air channel is provided on the inner wall of the support ring, one end of each second connecting air channel is connected to the third annular air channel, and multiple third connecting air channels are provided around the second air channel on the upper part of the rotating body, and both ends of each third connecting air channel are respectively connected to the third annular air channel and the second air channel.

[0015] Furthermore, the gas pressure sensors are arranged on the support ring at equal intervals around the support ring, and each gas pressure sensor is communicated with a second communication air passage.

[0016] Furthermore, each positioning air channel is arranged on the inner wall of the positioning ring at equal intervals in an annular shape, and each positioning air channel is perpendicular to the outer wall of the component.

[0017] Furthermore, a second annular air channel is provided on the inner wall of the rotating through hole, one end of the first air channel is connected to the second annular air channel, a plurality of negative pressure air channels are provided in the base, one end of each negative pressure air channel is connected to the second annular air channel, a plurality of negative pressure connecting air channels are provided in the support ring, and the lower end of each negative pressure connecting air channel is connected to a negative pressure air channel, and the upper end is connected to the annular groove air channel.

[0018] Furthermore, each fixing assembly is arranged on the base at equal intervals around the base, and each fixing assembly includes a cylinder and a fixing rod, the fixing rod is arranged on the output end of the cylinder, and the cylinder drives the fixing rod to press the part down and fix it on the support ring.

[0019] Furthermore, the cylinder is a rotary clamping cylinder.

[0020] Furthermore, the rotating body is provided with a third air passage, and the base is provided with a cylinder connecting port, one end of the cylinder connecting port is connected to each cylinder, and the other end is communicated with the third air passage.

[0021] Furthermore, a first annular air channel is provided on the inner wall of the rotating through hole, one end of the cylinder connecting port is communicated with the first annular air channel, and the first annular air channel is communicated with the third air channel.

[0022] The beneficial effects of the utility model are:

[0023] The self-centering, self-clamping and self-detecting integrated tooling for annular parts in the utility model sprays gas through each positioning air channel to move the parts toward the air pressure center, thereby completing the automatic centering of the parts, and the gas pressure sensor connected to the gas can detect the air pressure inside each positioning air channel, so it can be detected whether the centering of the parts is completed;

[0024] By extracting air, negative pressure is generated in the annular groove air channel, so that the negative pressure adsorbs and fixes the parts, thereby pre-tightening the parts. At the same time, the flatness of the end face of the part can be detected. If the lower end face of the part is not flat, external air will enter the annular groove air channel, so whether the end face of the part is flat can be measured;

[0025] The rotary clamping cylinder drives the fixing rod to rotate and descend, thereby pressing and fixing the end face of the part on the support ring, avoiding the situation where the part is pinched when the annular part is clamped and fixed through the outer wall;

[0026] When processing parts, the base and the rotating body can rotate relative to each other, so the parts can rotate with the base, making it convenient to perform rotation processing on the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional structural schematic diagram of a self-centering, self-clamping and self-detecting integrated tooling for annular parts proposed by the utility model;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the positioning airway of a self-centering, self-clamping and self-detecting integrated tooling for an annular part proposed by the utility model;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of a negative pressure airway of a self-centering, self-clamping and self-detecting integrated tooling for an annular part proposed by the utility model;

[0030] Figure 4 A schematic diagram of the three-dimensional structure of a positioning ring and a supporting ring of a self-centering, self-clamping and self-detecting integrated tooling for an annular part proposed by the utility model;

[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of a negative pressure connecting airway of a self-centering, self-clamping and self-detecting integrated tooling for an annular part proposed by the utility model.

[0032] In the figure: 1 base, 101 cylinder connection port, 102 first annular air channel, 103 second annular air channel, 104 negative pressure air channel, 2 fixed cylinder, 201 fixed rod, 3 gas pressure sensor, 4 parts, 5 positioning ring, 501 first connecting air channel, 502 positioning air channel, 6 support ring, 601 annular groove air channel, 602 second connecting air channel, 603 third annular air channel, 604 negative pressure connecting air channel, 7 rotating body, 8 first air channel, 9 second air channel, 10 third air channel, 11 third connecting air channel. DETAILED DESCRIPTION

[0033] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0036] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0037] Reference Figure 1-5 A self-centering, self-clamping and self-detecting integrated tooling for annular parts is used for the centering and clamping processing of annular parts, in order to facilitate the automatic centering and clamping of annular parts, as well as the centering and end surface flatness detection.

[0038] The annular part self-centering, self-clamping and self-detecting integrated tooling comprises a base 1, a rotating body 7, a support ring 6, a positioning ring 5, a plurality of gas pressure sensors 3 and a plurality of fixing components;

[0039] The base 1 is in the shape of a stepped truncated cone and has a rotating through hole in the middle. The rotating body 7 is rotatably connected in the rotating through hole. A deep groove ball bearing and a Gley ring are provided between the rotating body 7 and the rotating through hole. The deep groove ball bearing facilitates the rotation of the rotating body 7 inside the rotating through hole, and the Gley ring facilitates the sealing between the rotatable rotating body 7 and the base 1 to avoid gas leakage.

[0040] A first air channel 8 is provided inside the rotating body 7, and a second annular air channel 103 is provided on the inner wall of the rotating through hole. The first air channel 8 is connected to the second annular air channel 103, so that when the rotating body 7 is rotated to any angle, the first air channel 8 can still be connected to the second annular air channel 103, which is convenient for gas to pass through. A plurality of negative pressure air channels 104 are provided in the base 1, and one end of each negative pressure air channel 104 is connected to the second annular air channel 103. The support ring 6 is fixedly connected to the base 1. The top surface of the support ring 6 is flat and is provided with an annular groove air channel 601. A plurality of negative pressure connecting air channels 604 are provided inside the support ring 6. The lower end of each negative pressure connecting air channel 604 is connected to a negative pressure air channel 104, and the upper end is connected to the annular groove air channel 601. The part 4 is placed on the support ring 6 , the lower end surface of part 4 will cover the annular groove air channel 601. At this time, air is extracted through the first air channel 8 to generate negative pressure. Since the annular groove air channel 601 is connected to the first air channel 8 through the negative pressure connecting air channel 604, the negative pressure air channel 104 and the second annular air channel 103 in sequence, negative pressure will be generated in the annular groove air channel 601. Since the lower end surface of part 4 is located on the annular groove air channel 601, the negative pressure will adsorb and fix part 4 at this time, thereby pre-tightening part 4. Moreover, if the lower end surface of part 4 is not flat, a gap will be generated between part 4 and the support ring 6, and external gas will enter the annular groove air channel 601 through the gap. At this time, part 4 cannot be adsorbed and fixed. Therefore, the negative pressure fixing method can also perform flatness detection on the end surface of part 4.

[0041] A second air channel 9 is provided inside the rotating body 7, and a plurality of third connecting air channels 11 are provided around the second air channel 9 at the upper end of the second air channel 9. A third annular air channel 603 is provided on the inner wall of the supporting ring 6, and the two ends of each third connecting air channel 11 are respectively connected to the third annular air channel 603 and the second air channel 9. The positioning ring 5 is fixedly connected to the supporting ring 6, and a plurality of second connecting air channels 602 are provided inside the supporting ring 6, and one end of each second connecting air channel 602 is connected to the third annular air channel 603. A plurality of first connecting air channels 501 and positioning air channels 502 are provided inside the positioning ring 5, and the two ends of each first connecting air channel 501 are respectively connected to a positioning air channel 502 and a second connecting air channel 602. Each positioning air channel 502 is arranged on the inner wall of the positioning ring 5 at equal intervals in an annular manner, and each positioning air channel 502 is vertically facing the outer wall of the part 4. Each gas pressure sensor 3 is arranged on the supporting ring 6 at equal intervals around the supporting ring 6, and each gas pressure sensor 3 is connected to a second connecting air channel 602. When the part 4 is connected and the part 4 is centered, gas is injected from the second air channel 9, and the gas passes through the third connecting air channel 11, the third annular air channel 603, the second connecting air channel 602 and the first connecting air channel 501 in sequence, and is finally ejected through the positioning air channel 502. Since the positioning air channel 502 is arranged on the positioning ring 5 in a surrounding manner, and the positioning ring 5 is located outside the part 4, each positioning air channel 502 ejects gas toward the part 4, and therefore each positioning air channel 502 will move the part 4 toward the air pressure center, so that the part 4 is automatically centered. At this time, since the part 4 is located at the center position of each positioning air channel 502, resistance will be generated to the gas, and the gas pressure sensor 3 connected to the gas can detect the air pressure inside each positioning air channel 502, so it can be detected whether the part 4 is centered. Only when the part 4 is in the center position, that is, after centering, the internal pressure of each positioning air channel 502 will be consistent. Therefore, the device can be centered by air pressure and perform centering detection at the same time.

[0042] Each fixed component is arranged on the base 1 at equal intervals around the base 1, and each fixed component includes a rotary clamping cylinder and a fixed rod 201, the fixed rod 201 is arranged on the output end of the cylinder, the rotating body 7 is provided with a third air channel 10, and the inner wall of the rotating through hole is provided with a first annular air channel 102, and the base 1 is provided with a cylinder connecting port 101, one end of the cylinder connecting port 101 is connected to each cylinder, and the other end is connected to the first annular air channel 102, the first annular air channel 102 is connected to the third air channel 10, and air pressure can be generated through the third air channel 10, and the air pressure controls each cylinder in turn through the third air channel 10, the first annular air channel 102 and the cylinder connecting port 101. After the part 4 is centered, the cylinder can be controlled to drive the fixed rod 201 to rotate and descend, so that the part 4 is pressed and fixed on the support ring 6.

[0043] The working principle of the self-centering, self-clamping and self-detecting tooling for annular parts:

[0044] First, the first air channel 8, the second air channel 9 and the third air channel 10 are connected to external air pressure devices to control the gas in each air channel 8, and then the part 4 is placed on the support ring 6;

[0045] When centering a part, gas is injected into the second gas channel 9 through an external air pressure device, and the gas passes through the third connecting gas channel 11, the third annular gas channel 603, the second connecting gas channel 602 and the first connecting gas channel 501 in sequence, and finally ejected through the positioning gas channel 502. Since the positioning gas channel 502 surrounds the outer wall of the part 4, the ejected gas will move the part 4 to the air pressure center, that is, the part 4 is automatically centered, and the gas pressure sensor 3 connected to the gas can detect the air pressure inside each positioning gas channel 502, so it can be detected whether the part 4 is centered;

[0046] Part 4 can be pre-tightened during centering, that is, after the centering of part 4 is completed, air is extracted through the external air pressure device and the first air channel 8 to generate negative pressure. Since the annular groove air channel 601 is connected with the first air channel 8 through the negative pressure connecting air channel 604, the negative pressure air channel 104 and the second annular air channel 103 in sequence, negative pressure will be generated in the annular groove air channel 601. Since the lower end surface of part 4 is located on the annular groove air channel 601, the negative pressure will adsorb and fix part 4 at this time, thereby pre-tightening part 4.

[0047] Then, the part 4 can be fixed by the fixing assembly, so as to facilitate processing. When fixing, the third air channel 10 generates air pressure through the external air pressure device, and the air pressure controls each cylinder through the third air channel 10, the first annular air channel 102 and the cylinder connecting port 101 in sequence. After the centering of the part 4 is completed, the cylinder can be controlled to drive the fixing rod 201 to rotate and descend, so as to press and fix the part 4 on the support ring 6, so as to facilitate processing of the part 4;

[0048] When processing the part 4, since the base 1 and the rotating body 7 can rotate relative to each other, the part 4 can rotate along with the base 1, which facilitates the rotation processing of the part 4, and the first annular air channel 102, the second annular air channel 103 and the third annular air channel 603 can always ensure the uninterrupted communication of the gas when the rotating body 7 rotates;

[0049] When it is necessary to detect the flatness of the end face of part 4, part 4 is placed on the support ring 6, and the end face to be detected is fitted with the top surface of the support ring 6. Air is drawn through external air pressure equipment and the first air duct 8 to generate negative pressure in the annular groove air duct 601. If the lower end face of part 4 is uneven, a gap will be generated between part 4 and the support ring 6, and external air will enter the annular groove air duct 601 through the gap. At this time, part 4 cannot be adsorbed and fixed, so that the flatness of the end face of part 4 can be detected.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-centering, self-clamping and self-detecting integrated tooling for annular parts, characterized in that: include: A base (1) having a rotation through hole at its center; A rotating body (7) which is rotatably connected to the rotating through hole and has a first air passage (8) and a second air passage (9) arranged therein; A support ring (6) is arranged on the base (1), and the top surface of the support ring (6) is used to support the lower end surface of the part (4), and the top surface of the support ring (6) is provided with an annular groove air channel (601), and the annular groove air channel (601) is connected to the first air channel (8); A positioning ring (5) is arranged on the supporting ring (6), and a plurality of positioning air channels (502) are arranged around the inner wall of the positioning ring (5), the positioning air channels (502) are connected with the second air channels (9), and each positioning air channel (502) faces the part (4); A plurality of gas pressure sensors (3), each of the gas pressure sensors (3) being connected to one of the positioning air channels (502) to detect the pressure of each of the positioning air channels (502); And a plurality of fixing components, which are used to fix the upper end surface of the part (4).

2. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 1, characterized in that: The positioning ring (5) is provided with a plurality of first connecting air channels (501), and the supporting ring (6) is provided with a plurality of second connecting air channels (602). The two ends of each of the first connecting air channels (501) are respectively connected to a positioning air channel (502) and a second connecting air channel (602), and one end of each of the second connecting air channels (602) is connected to the second air channel (9).

3. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 2, characterized in that: The inner wall of the support ring (6) is provided with a third annular air channel (603), one end of each of the second connecting air channels (602) is connected to the third annular air channel (603), and a plurality of third connecting air channels (11) are provided around the second air channel (9) on the upper part of the rotating body (7), and two ends of each of the third connecting air channels (11) are respectively connected to the third annular air channel (603) and the second air channel (9).

4. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 3, characterized in that: The gas pressure sensors (3) are arranged on the support ring (6) at equal intervals around the support ring (6), and each gas pressure sensor (3) is connected to a second connecting air channel (602).

5. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 1, characterized in that: Each of the positioning air channels (502) is arranged on the inner wall of the positioning ring (5) at equal intervals in an annular shape, and each of the positioning air channels (502) is perpendicular to the outer wall of the component (4).

6. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 1, characterized in that: A second annular air channel (103) is provided on the inner wall of the rotating through hole, one end of the first air channel (8) is connected to the second annular air channel (103), a plurality of negative pressure air channels (104) are provided in the base (1), one end of each of the negative pressure air channels (104) is connected to the second annular air channel (103), and a plurality of negative pressure connecting air channels (604) are provided in the support ring (6), the lower end of each of the negative pressure connecting air channels (604) is connected to a negative pressure air channel (104), and the upper end is connected to the annular groove air channel (601).

7. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 1, characterized in that: The fixing components are arranged on the base (1) at equal intervals around the base (1), and each fixing component comprises a cylinder and a fixing rod (201). The fixing rod (201) is arranged on the output end of the cylinder, and the cylinder drives the fixing rod (201) to press the part (4) down and fix it on the support ring (6).

8. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 7, characterized in that: The cylinder is a rotary clamping cylinder.

9. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 7, characterized in that: The rotating body (7) is provided with a third air passage (10), and the base (1) is provided with a cylinder connection port (101), one end of the cylinder connection port (101) is connected to each of the cylinders, and the other end is communicated with the third air passage (10).

10. The self-centering, self-clamping and self-detecting integrated tooling for annular parts according to claim 9, characterized in that: A first annular air channel (102) is provided on the inner wall of the rotating through hole, one end of the cylinder connecting port (101) is in communication with the first annular air channel (102), and the first annular air channel (102) is in communication with the third air channel (10).

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