CN216771040U - Be applied to split type air bearing performance and detect frock - Google Patents

Abstract

The utility model relates to a performance detection tool applied to a split type air bearing, which comprises an installation seat, a positioning sleeve, a thrust cylinder, a left rotating cylinder, a right rotating cylinder and a test tube, wherein the installation seat consists of an upper bottom plate, a lower bottom plate and two side plates; a pressing plate locked by screws is arranged on the core column of the rotary air cylinder, and a push plate locked by screws is arranged on the push rod of the thrust air cylinder; the clamping device has the advantages that the clamping speed of the workpiece during detection is increased through the clamping form of tensioning and pushing the air cylinder, the structure is simple, the universality is strong, the semi-automation characteristic is realized, the integral production and use cost is reduced, and the integral production efficiency is increased.

Description

Be applied to split type air bearing performance and detect frock

Technical Field

The utility model relates to the technical field of detection tools, in particular to a high-efficiency detection tool which is applied to performance detection of a split type air bearing, can quickly and accurately detect and improve the overall production efficiency.

Background

The performance of the air bearing, which is one of the most important accessories of the air spindle, directly affects the processing precision and the use performance of the spindle. Compressed air forms an air film between the rotor and the bearing through a damper on an inner hole of the bearing, and the support rigidity of the air film to the rotor is directly influenced by the magnitude of air flow; due to the characteristic of high rotating speed of the air spindle, heat generated by friction between the rotor and air is very large, and sufficient cooling is very necessary for reducing the influence of heat generation on the dimensional accuracy of the air bearing. The split air bearing water route is located inside the bearing, blocks by the sealing washer between gas circuit and the water route, and the bearing is in the assembling process, and the damaged phenomenon of friction can appear in partial sealing washer, causes the water gas circuit to communicate with each other, finally influences the main shaft precision. In order to ensure the quality of the air bearing, the bearing is required to be detected quickly and efficiently.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a performance detection tool applied to a split type air bearing, aiming at the defects of the prior art.

The embodiment of the utility model provides a performance detection tool applied to a split type air bearing, which comprises a mounting seat, wherein a thrust cylinder is assembled on the bottom surface of the mounting seat, a positioning sleeve and at least one rotary cylinder are assembled on the top surface of the mounting seat, a pressure plate is assembled on an output shaft of the rotary cylinder and used for pressing and positioning the air bearing on the positioning sleeve, an annular boss for bearing the air bearing is arranged on the inner wall of the positioning sleeve, the mounting seat is provided with a through hole, a push plate is assembled on the output shaft of the thrust cylinder and used for being controlled by the thrust cylinder to sequentially penetrate through the through hole and a central hole of the annular boss and push the air bearing borne on the annular boss out of the positioning sleeve; the positioning sleeve is provided with a positioning sleeve air inlet air passage and a positioning sleeve air outlet air passage, the positioning sleeve air inlet air passage is communicated with a compressed air source through a positioning sleeve air inlet, the positioning sleeve air passage is communicated with an air bearing air passage of the air bearing, the positioning sleeve air outlet air passage is communicated with an air bearing water passage of the air bearing, the positioning sleeve air outlet air passage is communicated with the lower part of the liquid level in the container through a positioning sleeve air outlet, and the air bearing air passage and the air bearing water passage are blocked by a sealing ring.

In some embodiments, the mounting seat comprises an upper bottom plate, a lower bottom plate and two side plates, wherein the two side plates are vertically arranged on the lower bottom plate, the upper bottom plate is assembled at the tops of the two side plates, a space for assembling the thrust cylinder is arranged between the upper bottom plate and the lower bottom plate, and the upper bottom plate is provided with a through hole; the thrust cylinder is assembled on the lower bottom plate, and the positioning sleeve and the rotary cylinder are assembled on the upper bottom plate.

In some embodiments, two rotary cylinders are respectively assembled at the left side and the right side of the positioning sleeve.

In some of these embodiments, the press face of the platen has a cushion of rubber.

In some embodiments, the rotary cylinder comprises a rotary cylinder shell, a guide core column, a pull rod and a pressure plate, an inner hole at a shaft shoulder end of the pull rod is matched with a shaft neck of the guide core column, the guide core column is fixedly arranged on the rotary cylinder shell, at least one guide groove is arranged on the excircle of the shaft neck of the guide core column, the guide groove is of a continuous straight groove and spiral groove structure, at least one ball mounting hole leading to the inner hole is formed in the shaft shoulder of the pull rod, the ball is fastened in the ball mounting hole and is arranged in the guide groove, and the pull rod does reciprocating linear motion under the action of air pressure and does rotary motion around an axis under the action of the guide groove.

In some of these embodiments, the rotary cylinder housing has a rotary cylinder working inlet port and a rotary cylinder reset inlet port communicating to the inner cylinder block.

In some embodiments, the thrust cylinder comprises a thrust cylinder shell, an inner bushing, a front cover, a rear cover, a push rod and a push plate, the thrust cylinder shell is fixed on the bottom surface of the mounting seat, the front cover and the rear cover are positioned at two ends of the inner bushing and fixed in the thrust cylinder shell, the push rod is installed in the inner bushing and performs reciprocating linear motion under the action of air pressure, and the push plate is fastened at the end part of the push rod.

In some of these embodiments, the thrust cylinder casing has an inner liner service inlet passage and an inner liner reset inlet passage that communicate to the inner cylinder block.

In some of these embodiments, the container stores a liquid and is mounted on a mounting.

Compared with the prior art, the tool applied to performance detection of the split air bearing provided by the embodiment of the utility model has the advantages that the clamping speed of a workpiece during detection is increased through the clamping form of tensioning and pushing the cylinder, the structure is simple, the universality is strong, the semi-automatic characteristic is realized, the integral production and use cost is reduced, and the integral production efficiency is increased.

The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a reverse view of the overall structure of the present invention.

Fig. 2 is a front view of the overall structure of the present invention.

Fig. 3 is a cross-sectional view of the overall structure of the present invention.

Fig. 4 is a structural view of the guide stem of the present invention.

In the figure, 1, an air bearing outer sleeve; 2. a rubber pad; 3. pressing a plate; 4. a pull rod; 5. a rotating cylinder; 6. the rotary cylinder resets the air inlet joint; 7. rotating the working air inlet joint of the air cylinder; 8. an upper base plate; 9. a side plate; 10. a lower base plate; 11. the thrust cylinder resets the air inlet joint; 12. the thrust cylinder works and enters the air union; 13. a thrust cylinder; 14. a positioning sleeve gas path inlet joint; 15. a positioning sleeve waterway exhaust joint; 16. a conduit; 17. a test tube; 18. a test tube clamp; 19. a positioning sleeve; 20. rotating the cylinder housing; 21. a working air inlet of a rotary cylinder; 22. steel balls; 23. headless screws; 24. a rotary cylinder reset air inlet; 25. guiding the core column; 26. a thrust cylinder working air inlet; 27. a thrust cylinder reset air inlet; 28. a thrust cylinder housing; 29. an inner liner; 30. the inner bushing works and enters the gas circuit; 31. a rear cover; 32. a C-shaped snap ring; 33. the inner bushing resets and enters the gas circuit; 34. pushing the plate; 35. a front cover; 36. a push rod; 37. a positioning sleeve exhaust port; 38. an air bearing waterway; 39. an air bearing inner container; 40. an air bearing air passage; 41. a positioning sleeve air inlet path; 42. an air inlet of the positioning sleeve; 43. a guide groove; 44. an exhaust gas path of the positioning sleeve; 45. and an annular boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention. Moreover, it should be appreciated that such a development effort might be complex and tedious, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, given the benefit of this disclosure, without departing from the scope of this disclosure.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the utility model are not to be construed as limiting in number, and may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description of the utility model are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means greater than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in reference to the present invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1 to 4, an embodiment of the present invention provides a performance detection tool applied to a split type air bearing, which includes a mounting seat, a thrust cylinder 13 is assembled on a bottom surface of the mounting seat, a positioning sleeve 19 and two rotary cylinders 5 are assembled on a top surface of the mounting seat, a pressure plate 3 is assembled on an output shaft of each rotary cylinder 5, the pressure plate 3 is used for pressing and positioning the air bearing on the positioning sleeve 19, an annular boss 45 for bearing the air bearing is arranged on an inner wall of the positioning sleeve 19, the mounting seat has a through hole, a push plate 34 is assembled on the output shaft of the thrust cylinder 13, and the push plate 34 is used for pushing the air bearing borne on the annular boss 45 out of the positioning sleeve 19 by the thrust cylinder 13 sequentially passing through the through hole and a central hole of the annular boss 45; the positioning sleeve 19 is provided with a positioning sleeve air inlet air path 41 and a positioning sleeve air outlet air path 44, the positioning sleeve air inlet air path 41 is communicated with a compressed air source through a positioning sleeve air inlet 42, the positioning sleeve air inlet air path 41 is communicated with an air bearing air path 40 of the air bearing outer sleeve 1, the positioning sleeve air outlet air path 44 is communicated with an air bearing water path 38 between the air bearing outer sleeve 1 and the air bearing inner liner 39, the positioning sleeve air outlet air path 44 is communicated with the lower part of the liquid level in the container through a positioning sleeve air outlet 37, and the air bearing air path 40 is blocked with the air bearing water path 38 through a sealing ring. The positioning sleeve air inlet 42 is connected with a positioning sleeve air path air inlet joint 14. The positioning sleeve exhaust air passage 44 is connected with a positioning sleeve waterway exhaust joint 15.

In the embodiment, the mounting seat comprises an upper bottom plate 8, a lower bottom plate 10 and two side plates 9, wherein the two side plates 9 are erected on the lower bottom plate 10, the upper bottom plate 8 is assembled at the tops of the two side plates 9, a space for assembling a thrust cylinder 13 is arranged between the upper bottom plate 8 and the lower bottom plate 10, and the upper bottom plate 8 is provided with a through hole; the thrust cylinder 13 is assembled on the lower bottom plate 10, the positioning sleeve 19 is assembled above the center of the upper bottom plate 8, namely the through hole, the two rotary cylinders 5 are respectively assembled on the left side and the right side of the positioning sleeve 19, and the symmetrical pressing plates 3 are respectively controlled by the rotary cylinders 5 which are symmetrical on the left side and the right side to realize reliable pressing of the air bearing outer sleeve 1 in the positioning sleeve 19 so as to improve the stability of the air bearing in the positioning sleeve 19.

In the present embodiment, in order to avoid rigid collision between the pressure plate 3 and the air bearing housing 1, the rubber pad 2 is disposed on the pressing surface of the pressure plate 3, and the pressure plate 3 and the air bearing housing 1 are buffered by the rubber pad 2, so as to reduce rigid collision.

In this embodiment, the rotary cylinder 5 includes a rotary cylinder housing 20, a guide stem 25, a pull rod 4 and a pressing plate 3, an inner hole at a shaft shoulder end of the pull rod 4 is matched with a shaft neck of the guide stem 25, a flange of the guide stem 25 is fastened on the rotary cylinder housing 20 through a screw, three guide grooves 43 are formed in an outer circle of the shaft neck of the guide stem 25, the guide grooves 43 are of a continuous straight groove and spiral groove structure, three ball mounting holes leading to the inner hole are formed in a shaft shoulder of the pull rod 4, balls are fastened in the ball mounting holes through headless screws 23, and the balls are mounted in the guide grooves 43, and the pull rod 4 makes a reciprocating linear motion under the action of air pressure and simultaneously makes a rotational motion around an axis under the action of the guide grooves 43. In this embodiment, the balls are steel balls 22, and the steel balls 22 are fastened by headless screws 23. In addition, the rotary cylinder housing 20 has a rotary cylinder operation inlet port 21 and a rotary cylinder reset inlet port 24 communicated to the inner cylinder body, the rotary cylinder operation inlet port 21 and the rotary cylinder reset inlet port 24 are respectively communicated with a compressed air source, when compressed air enters from the rotary cylinder operation inlet port 21, the pull rod 4 is made to rotate and descend under the guiding action of the guide groove 43 of the guide stem 25 to press the press plate 3 on the upper end face of the air bearing housing 1, and when compressed air enters from the rotary cylinder reset inlet port 24, the pull rod 4 is made to lift and rotate under the guiding action of the guide groove 43 of the guide stem 25 to remove the press plate 3 from the upper end face of the air bearing housing 1. The rotary cylinder working air inlet 21 is connected with a rotary cylinder working air inlet joint 7, and the rotary cylinder resetting air inlet 24 is connected with a rotary cylinder resetting air inlet joint 6.

In this embodiment, the thrust cylinder 13 includes a thrust cylinder housing 28, an inner bushing 29, a front cover 35, a rear cover 31, a push rod 36 and a push plate 34, the thrust cylinder housing 28 is fixed on the bottom surface of the mounting seat, the front cover 35 and the rear cover 31 are located at two ends of the inner bushing 29 and fixed in the thrust cylinder housing 28 by a C-shaped snap ring 32, the push rod 36 is installed in the inner bushing 29 and makes a reciprocating linear motion under the action of air pressure, and the push plate 34 is fastened at the end of the push rod 36. The thrust cylinder housing 28 has an inner liner working inlet passage 30 and an inner liner reset inlet passage 33 communicating to the inner cylinder block. The inner bush working air inlet path 30 is connected with a thrust air cylinder working air inlet joint 11, and the inner bush resetting air inlet path 33 is connected with a thrust air cylinder resetting air inlet joint 12.

In this embodiment, the test tube 17 is used as a container and stores liquid, the liquid is water, and the test tube 17 is fixed on the upper plate 8 by fitting the test tube holder 18. One end of a guide pipe 16 is inserted into the test tube 17, and the other end of the guide pipe 16 is communicated with the positioning sleeve waterway exhaust joint 15.

The working principle of the embodiment of the utility model is as follows: when the tool is used, firstly, the electromagnetic valve is opened to enable compressed air to enter a lower cavity between the pull rod 4 and the rotary cylinder shell 20 from the rotary cylinder working air inlet joint 7, the pull rod 4 moves linearly upwards under the action of air pressure, and simultaneously, the pull rod performs rotary motion around an axis under the action of the guide groove 43 on the guide core column 25, and the tool state is shown in the figure at this time. Firstly, a sealing ring is arranged on the outer circle of the air bearing, then the air bearing is arranged in the positioning sleeve 19, the reversing valve is opened to enable compressed air to enter a lower cavity between the pull rod 4 and the rotary cylinder shell 20, the air bearing is pressed tightly through downward linear motion and rotary motion around an axis under the action of air pressure and the guide core column 25, at the moment, the air valve is opened to enable the compressed air to enter an air bearing air passage 40 from an air inlet 42 of the positioning sleeve through an air inlet 41 of the positioning sleeve, and the air flow of the air bearing is detected by a flow meter. The test tube 17 is filled with a proper amount of clean water, if two sealing rings in the middle of the air bearing inner container 39 are damaged (the air bearing outer sleeve 1 and the air bearing inner container 39 can rotate relatively, when the air bearing outer sleeve 1 is fixed by the pressing plate 3, the air bearing inner container 39 is damaged due to the fact that the performance of the air bearing inner container 39 is poor after the air bearing outer sleeve rotates at a high speed), the pressure of the air path leaks into the air bearing water path 38, and at the moment, bubbles can appear in the test tube 17. When the next air bearing is replaced, the reversing valve is opened firstly, the pull rod 4 of the rotary cylinder 5 is reset, the air valve is opened, the working air inlet 26 of the thrust cylinder is used for air inlet, compressed air enters the lower cavity between the push rod 36 and the inner bushing 29 through the inner bushing working air inlet path 30, the push rod 36 moves linearly upwards under the action of air pressure and pushes out the air bearing, the reversing valve is opened, the resetting air inlet 27 of the thrust cylinder is used for air inlet, compressed air enters the upper cavity between the push rod 36 and the inner bushing 29 through the inner bushing resetting air inlet path 33, and the thrust cylinder 13 is reset.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (9)

1. A performance detection tool applied to a split type air bearing is characterized by comprising an installation seat, a thrust cylinder (13) is assembled on the bottom surface of the mounting seat, a positioning sleeve (19) and at least one rotary cylinder (5) are assembled on the top surface of the mounting seat, the output shaft of the rotary cylinder (5) is provided with a pressure plate (3), the pressure plate (3) is used for pressing and positioning the air bearing on the positioning sleeve (19), the inner wall of the positioning sleeve (19) is provided with an annular boss (45) for bearing the air bearing, the mounting seat is provided with a through hole, the output shaft of the thrust cylinder (13) is provided with a push plate (34), the push plate (34) is used for being controlled by the thrust cylinder (13) to sequentially penetrate through the through hole and the central hole of the annular boss (45) so as to push the air bearing borne on the annular boss (45) out of the positioning sleeve (19); position sleeve (19) have position sleeve air inlet gas circuit (41) and position sleeve exhaust gas circuit (44), position sleeve air inlet gas circuit (41) communicate with compressed air source through position sleeve air inlet (42), position sleeve (19) gas circuit be used for with air bearing's air bearing gas circuit (40) intercommunication, position sleeve exhaust gas circuit (44) be used for with air bearing's air bearing water route (38) intercommunication, position sleeve exhaust gas circuit (44) communicate through below the liquid level in position sleeve gas vent (37) and the container, air bearing gas circuit (40) with block up by the sealing washer between air bearing water route (38).

2. The tool applied to the performance detection of the split air bearing in claim 1, wherein the mounting seat comprises an upper bottom plate (8), a lower bottom plate (10) and two side plates (9), the two side plates (9) are erected on the lower bottom plate (10), the upper bottom plate (8) is assembled on the tops of the two side plates (9), a space for assembling the thrust cylinder (13) is formed between the upper bottom plate (8) and the lower bottom plate (10), and the upper bottom plate (8) is provided with the through hole; the thrust cylinder (13) is assembled on the lower bottom plate (10), and the positioning sleeve (19) and the rotary cylinder (5) are assembled on the upper bottom plate (8).

3. The tool applied to the performance detection of the split type air bearing is characterized in that the two rotary cylinders (5) are respectively assembled at the left side and the right side of the positioning sleeve (19).

4. The tool applied to the performance detection of the split air bearing is characterized in that a rubber gasket (2) is arranged on the pressing surface of the pressing plate (3).

5. The tool for detecting the performance of the split air bearing is characterized in that the rotating cylinder (5) comprises a rotating cylinder shell (20), a guide core column (25), a pull rod (4) and a pressure plate (3), an inner hole at the shaft shoulder end of the pull rod (4) is matched with a shaft neck of the guide core column (25), the guide core column (25) is fixed on the rotating cylinder shell (20), at least one guide groove (43) is formed in the outer circle of the shaft neck of the guide core column (25), the guide groove (43) is of a continuous straight groove and spiral groove structure, at least one ball mounting hole leading to the inner hole is formed in the shaft shoulder of the pull rod (4), balls are fastened in the ball mounting holes, the balls are mounted in the guide groove (43), and the pull rod (4) performs reciprocating linear motion under the action of air pressure, while being rotated about the axis by the guide groove (43).

6. The tool applied to the performance detection of the split type air bearing is characterized in that the rotating cylinder shell (20) is provided with a rotating cylinder working air inlet (21) and a rotating cylinder resetting air inlet (24) which are communicated with the inner cylinder body.

7. The tool applied to the performance detection of the split air bearing is characterized in that the thrust cylinder (13) comprises a thrust cylinder shell (28), an inner bushing (29), a front cover (35), a rear cover (31), a push rod (36) and a push plate (34), the thrust cylinder shell (28) is fixed to the bottom surface of the mounting seat, the front cover (35) and the rear cover (31) are located at two ends of the inner bushing (29) and fixed in the thrust cylinder shell (28), the push rod (36) is mounted in the inner bushing (29) and moves in a reciprocating linear mode under the action of air pressure, and the push plate (34) is fastened to the end portion of the push rod (36).

8. The tool for detecting the performance of the split air bearing is applied to the split air bearing and is characterized in that the thrust cylinder shell (28) is provided with an inner lining working air inlet path (30) and an inner lining resetting air inlet path (33) which are communicated with the inner cylinder body.

9. The tool for detecting the performance of the split air bearing as claimed in claim 1, wherein the container stores liquid and is assembled on the mounting seat.

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