A rotary switching device

Abstract

The present application relates to a rotary switching device, including a connecting shaft and a rotating sleeve, the connecting shaft and the rotating sleeve are rotatably connected, a connecting hole is provided on the rotating sleeve, a pressurizing hole and a pressure relief hole are provided on the connecting shaft, the pressurizing hole is for compressed medium to pass through, the pressure relief hole is for compressed medium to be discharged from the connecting shaft, the pressurizing hole and the pressure relief hole are not connected, and as the rotating sleeve rotates, the connecting object of the connecting hole switches between the pressurizing hole and the pressure relief hole. The present application has the function of realizing the reaming and honing fixture of the reaming and honing machine, so that the loading and unloading workpiece station is always in a loose state during the processing, and the other processing stations are always in a clamped state, so as to facilitate the realization of automated operation.

Description

Technical Field

[0001] The present application relates to the technical field of tooling, and in particular to a rotary switching device. Background Art

[0002] The market demand for automation is getting higher and higher, and realizing the automatic operation of our reaming and honing machines is an urgent need of the market. We must solve the problem of facilitating the realization of automation of reaming and honing machines. Summary of the invention

[0003] In view of the shortcomings of the prior art, one of the purposes of the present application is to provide a rotary switching device, which has the function of automatically switching the workpiece state between loosening and tightening during the processing of the reaming and honing clamp of the reaming and honing machine. The workpiece can be directly loaded and unloaded when it is in a relaxed state, and can be processed when it is in a tightened state, thereby improving the advantage of the degree of automation.

[0004] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0005] A rotary switching device, characterized in that it includes a connecting shaft and a rotating sleeve, the connecting shaft and the rotating sleeve are rotatably connected, a connecting hole is provided on the rotating sleeve, and a pressurizing hole and a pressure relief hole are provided on the connecting shaft, the pressurizing hole is for compressed medium to pass through, and the pressure relief hole is for compressed medium to be discharged from the connecting shaft, the pressurizing hole and the pressure relief hole are not connected, and as the rotating sleeve rotates, the connected object of the connecting hole switches between the pressurizing hole and the pressure relief hole.

[0006] By adopting the above technical scheme, the connecting hole and the pressurizing hole are connected to form a conveying channel, and the conveying channel guides the compressed medium to flow to the driving member, so that the driving member at the workstation corresponding to the connecting hole applies pressure to the workpiece, thereby the workpiece is compressed or loosened, and the rotating sleeve drives the connecting hole to rotate. When the connecting hole and the pressure relief hole are connected, a discharge channel is formed. The discharge channel guides the compressed medium to be discharged from the driving member, so that the compressed or loosened workpiece changes state, thereby achieving the purpose of automatically switching the workpiece state between relaxation and compression, thereby improving the degree of automation.

[0007] In a preferred example, the present application can be further configured as follows: it also includes a base, a receiving cavity is provided on the base, one end of the connecting shaft is inserted into the receiving cavity, and the connecting shaft is fixedly connected to the base.

[0008] By adopting the above technical solution, the connecting shaft is fixedly connected to the base, so that the connecting shaft and the rotating sleeve can rotate.

[0009] In a preferred example, the present application can be further configured as follows: a cavity is also provided on the connecting shaft, the pressurizing hole is connected to the cavity, and the cavity is used to divert the compressed medium to the pressurizing hole.

[0010] By adopting the above technical solution, the connection between the delivery source and the pressurizing hole is more convenient, especially the delivery channel and the multiple pressurizing holes are connected to make it more convenient.

[0011] In a preferred example, the present application can be further configured as follows: the pressure relief hole includes channel one and channel two, channel one is connected to the connecting hole and is not connected to the pressurizing hole, one end of channel two is connected to channel one, and the other end penetrates the end face of the connecting shaft.

[0012] By adopting the above technical solution, the compressed medium is discharged outside the connecting shaft, thereby reducing the probability of the compressed medium flowing to other channels.

[0013] In a preferred example, the present application can be further configured as follows: a groove one is provided on the connecting shaft, the groove one is arranged in an arc shape on the connecting shaft, the pressure hole and the groove one are connected, and the groove one is connected to the connecting hole.

[0014] By adopting the above technical solution, the groove 1 increases the communication range between the pressurizing hole and the connecting hole, so that the pressurizing hole and the connecting hole are quickly connected.

[0015] In a preferred example, the present application can be further configured as follows: a second groove is provided on the connecting shaft, the first groove is arranged in an arc shape on the connecting shaft, the pressure relief hole is connected to the second groove, and the second groove is connected to the connecting hole.

[0016] By adopting the above technical solution, the second groove increases the communication range between the pressure relief hole and the connecting hole, so that the pressure relief hole and the connecting hole are quickly connected.

[0017] In a preferred example, the present application can be further configured as follows: the pressure holes are divided into two rows, the connection holes are divided into two rows, the groove one is connected to the lower row of pressure holes, and the groove one is connected to the corresponding lower row of connection holes.

[0018] By adopting the above technical solution, the lower row of pressurizing holes and the lower row of connecting holes corresponding to the groove one are quickly connected.

[0019] In a preferred example, the present application can be further configured as follows: the pressure relief holes are divided into two rows, the connecting holes are divided into two rows, the groove two is connected to the upper row of connecting holes, and the groove two is connected to the corresponding upper row of connecting holes.

[0020] By adopting the above technical solution, the upper pressure relief hole and the upper row of connecting holes corresponding to the groove 1 are quickly connected.

[0021] In a preferred example, the present application can be further configured as follows: seal 1 and seal 2 are provided on the connecting shaft, seal 1 and seal 2 are used to form a closed space between the connecting shaft and the rotating sleeve, and the pressurizing hole and the pressure relief hole are respectively connected to the closed space.

[0022] By adopting the above technical solution, the probability of leakage of the compressed medium flowing from the pressurizing hole to the driving member and from the driving member to the pressure relief hole is reduced.

[0023] In a preferred example, the present application can be further configured as follows: a seal three is also provided on the connecting shaft, and the seal three is used to divide the enclosed space formed between the connecting shaft and the rotating sleeve into two sealed chambers.

[0024] By adopting the above technical solution, the probability of the compressed medium flowing to other chambers is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of Example 1 of the present application.

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of Example 1 of the present application.

[0027] Figure 3 It is a schematic diagram of the connecting shaft structure of Example 1 of the present application.

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the second embodiment of the present application.

[0029] Figure 5 This is a schematic diagram of the connecting shaft structure of Example 2 of the present application.

[0030] Figure numerals: 1. connecting shaft; 11. pressurizing hole; 12. pressure relief hole; 121. channel one; 122. channel two; 13. cavity; 14. groove one; 15. groove two; 16. seal one; 17. seal two; 18. seal three; 2. rotating sleeve; 21. connecting hole; 22. conveying channel; 23. discharge channel; 24. mounting hole; 25. threaded hole; 3. base; 4. accommodating chamber; 5. bearing; 6. retaining ring; 7. end cover. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] Reference Figure 1 , Figure 2 and Figure 4, Embodiment 1 is a rotary switching device disclosed in the present application, comprising a base 3, a connecting shaft 1 and a rotating sleeve 2, the connecting shaft 1 and the rotating sleeve 2 are rotatably connected, in this embodiment, the connecting shaft 1 and the rotating sleeve 2 are rotatably connected through a bearing 5, two bearings 5 ​​are provided on the connecting shaft 1, the bearing 5 is installed on the connecting shaft 1 by a retaining ring 6, an end cover 7 and a mounting hole 24 are provided on the rotating sleeve 2, the end cover 7 is installed on the rotating sleeve 2 by bolting the threaded hole 25 on the rotating sleeve 2, the end cover 7 is used to prevent impurities from entering the rotating sleeve 2, the base 3 is fixed on the reaming and honing machine, the base 3 is provided with a accommodating cavity 4, one end of the connecting shaft 1 extends into the accommodating cavity 4, the connecting shaft 1 is fixed to the base 3 by a screw passing through the connecting sleeve, the connecting rod connects the rotating sleeve 2 and the rotary worktable through the mounting hole 24, so that the rotary sleeve 2 can rotate with the rotary worktable.

[0033] Reference Figures 2 to 5 A pressurizing hole 11, a pressure relief hole 12 and a cavity 13 are provided on the connecting shaft 1. The number and positions of the pressurizing hole 11 and the pressure relief hole 12 can be set as needed. The cavity 13 is connected to the delivery source to divert the compressed medium to the pressurizing hole 11. The pressurizing hole 11 and the pressure relief hole 12 are not connected. In an embodiment, the compressed medium can be compressed air. The pressure relief hole 12 includes a channel 121 and a channel 2 122. The channel 1 121 is connected to the connecting hole 21 and is not connected to the pressurizing hole 11. One end of the channel 2 122 is connected to the channel 1 121, and the other end passes through the end face of the connecting shaft 1.

[0034] A connecting hole 21 is provided on the rotary sleeve 2. In the embodiment, the number of the connecting holes 21 can be set as needed. One end of the connecting hole 21 is connected to the driving member, and the connecting object at the other end switches between the pressurizing hole 11 and the pressure relief hole 12 as the rotary sleeve 2 rotates. When the connecting hole 21 is connected to the pressurizing hole 11, a conveying channel 22 is formed. When the connecting hole 21 is connected to the pressure relief hole 12, a discharge channel 23 is formed. The conveying channel 22 is used to guide the compressed medium to flow to the driving member, and the discharge channel 23 is used to guide the compressed medium to be discharged from the driving member. The conveying channel 22 and the discharge channel 23 cooperate with the driving member to compress or release the workpiece.

[0035] A groove 14 and a cavity 13 are also provided on the connecting shaft 1. The groove 14 is arranged in an arc shape on the connecting shaft 1. In other embodiments, the groove 14 can be set to other groove structures with a connecting function as needed. The pressurizing hole 11 is arranged in the groove 14, and the groove 14 is used to connect the connecting hole 21 and the pressurizing hole 11.

[0036] A seal 16 and a seal 2 17 are also provided on the connecting shaft 1. The seal 16 and the seal 2 17 are used to form a closed space between the connecting shaft 1 and the rotating sleeve 2. The pressurized hole 11 and the pressure relief hole 12 are respectively connected to the closed space. In this embodiment, the seal 16 and the seal 2 17 can use a sealing ring to cooperate with a sealing groove to achieve the purpose of sealing.

[0037] In this embodiment, the driving member can adopt a one-way acting cylinder, which includes a chamber one. When the compressed medium flows from the conveying channel 22 to the chamber one, the driving member presses the workpiece, and when the compressed medium flows from the chamber one to the discharge channel 23, the driving member releases the workpiece.

[0038] Embodiment 2 is different from Embodiment 1 in that: a groove 2 15 is further provided on the connecting shaft 1, and the groove 2 15 is arranged in an arc shape on the connecting shaft 1. In other embodiments, the groove 2 15 can be arranged as other groove structures with a connecting function as needed. The groove 2 15 is used to connect the connecting hole 21 and the pressure relief hole 12. The pressurized holes 11 are divided into two rows, and the connecting holes 21 are divided into two rows. The groove 1 14 is connected to the lower row of pressurized holes 11, and the groove 1 14 is connected to the corresponding lower row of connecting holes 21. The pressure relief holes 12 are divided into two rows, and the groove 2 15 is connected to the upper row of connecting holes 21, and the groove 2 15 is connected to the corresponding upper row of connecting holes 21.

[0039] The connecting shaft 1 also has a sealing member 3 18, which is used to divide the closed space formed between the connecting shaft 1 and the rotary sleeve 2 into two sealed chambers. In this embodiment, the sealing member 3 18 can be a sealing ring in combination with a sealing groove to achieve the purpose of sealing.

[0040] In this embodiment, the driving member can adopt a double-acting cylinder, which includes chamber one and chamber two. When the compressed medium flows to chamber one and chamber two discharges the compressed medium, the workpiece is compressed. When the compressed medium flows to chamber two and chamber one discharges the compressed medium, the workpiece is loosened. The number of connecting holes 21 is not less than two, the number of pressurizing holes 11 is not less than one, and the number of pressure relief holes 12 is not less than one. The connecting holes 21 are arranged in two rows on the rotating sleeve 2, and the pressurizing holes 11 and the pressure relief holes 12 are arranged in two rows on the connecting shaft 1. The conveying channel 22 is used to guide the compressed medium to flow to chamber one, and the discharge channel 23 is used to guide the compressed medium to be discharged from chamber two. When the conveying channel 22 is used to guide the compressed medium to flow to chamber two, the discharge channel 23 is used to guide the compressed medium to be discharged from chamber one.

[0041] During installation, the rotating sleeve 2 and the connecting shaft 1 are rotated to connect, and then the end cover 7 used to prevent impurities from entering the rotating sleeve 2 is installed on the rotating sleeve, one end of the connecting shaft 1 is fixedly connected to the base 3, and the base 3 is installed to a suitable position to connect the rotating sleeve 2 to the rotary worktable.

[0042] When the first embodiment is working, the compressed medium is diverted from the cavity 13 to the pressurized hole 11, and the connecting hole 21 is connected with the pressurized hole 11, so that the compressed medium flows from the pressurized hole 11 to the connecting hole 21, and then flows from the connecting hole 21 to the chamber 1 of the driving member, so that the driving member presses the workpiece, and the rotary worktable drives the rotary sleeve 2 to rotate, and the connecting hole 21 is connected with the pressure relief hole 12, so that the compressed medium flows from the chamber 1 of the driving member to the connecting hole 21, and then flows from the connecting hole 21 to the channel 1 121, and flows from the channel 1 121 to the channel 2 122, and is discharged from the connecting shaft 1 from the channel 2 122, so that the workpiece is changed from the compressed state to the loosened state, thereby achieving the purpose of automatically switching the workpiece state between relaxation and compression, thereby improving the degree of automation.

[0043] When the second embodiment is working, the lower row connection holes 21 and the lower row pressure holes 11 are connected to form the lower row conveying channel 22. When the lower row conveying channel 22 and the chamber 1 of the driving member are connected, the upper row connection holes 21 and the upper discharge pressure holes 12 are connected to form the upper row discharge channel 23. The upper row discharge channel 23 and the chamber 2 of the driving member are connected. The compressed medium flows to the chamber 1 through the lower row conveying channel 22, and the compressed medium of the chamber 2 is discharged through the upper row discharge channel 23, so that the driving member presses the workpiece, and the rotary table drives the rotary sleeve 2 to rotate. The upper row connection holes 21 and The upper row of pressurizing holes 11 are connected to form an upper row of conveying channels 22, and the upper row of conveying channels 22 are connected to chamber two of the driving member, and the lower row of connecting holes 21 and the lower discharge pressure holes 12 are connected to form a lower row of discharge channels 23, and the lower row of discharge channels 23 are connected to chamber one of the driving member. The compressed medium flows to chamber two through the upper row of conveying channels 22, and the compressed medium in chamber one is discharged through the lower row of discharge channels 23, so that the compressed workpiece is transformed into a loosened state, thereby achieving the purpose of automatically switching the workpiece state between relaxation and compression, thereby improving the degree of automation.

[0044] The implementation principle of Example 1 and Example 2 is as follows: through the cooperation between the connecting shaft 1 and the rotating sleeve 2, the compressed medium controls the state of the driving member according to the combination of the hole positions on the rotating sleeve 2 and the connecting shaft 1, and then the compressed medium can control the state of the work station. The rotating sleeve 2 can rotate with the rotary worktable, and the corresponding work station can be transformed into a relaxed state or a fixed state according to processing needs. The number of connecting holes 21, pressurizing holes 11 and pressure relief holes 12 can be set as needed, so that the number of loading and unloading stations and processing stations can be set as needed.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary switching device, characterized in that: The invention comprises a connecting shaft (1) and a rotating sleeve (2), wherein the connecting shaft (1) and the rotating sleeve (2) are rotatably connected, the rotating sleeve (2) is provided with a connecting hole (21), the connecting shaft (1) is provided with a cavity (13), a pressurizing hole (11) and a pressure relief hole (12), the pressurizing hole (11) and the cavity (13) are connected to allow a compressed medium to pass through, the cavity (13) is used to divert the compressed medium to the pressurizing hole (11), the pressure relief hole (12) is used to allow the compressed medium to be discharged from the connecting shaft (1), and the pressurizing hole (11) is used to allow the compressed medium to be discharged from the connecting shaft (1). The connecting hole (21) is connected to the pressure-relief hole (12) and is not connected to the pressure-relief hole (11). As the rotating sleeve (2) rotates, the connecting hole (21) switches between the pressure-relief hole (12) and the pressure-relief hole (12). The pressure-relief hole (12) includes a channel 1 (121) and a channel 2 (122). The channel 1 (121) is connected to the connecting hole (21) and is not connected to the pressure-relief hole (11). One end of the channel 2 (122) is connected to the channel 1 (121), and the other end thereof penetrates the end surface of the connecting shaft (1).

2. A rotary steering device according to claim 1, characterized in that: It also comprises a base (3), the base (3) is provided with a receiving cavity (4), one end of the connecting shaft (1) is inserted into the receiving cavity (4), and the connecting shaft (1) is fixedly connected to the base (3).

3. A rotary steering device according to claim 1, characterized in that: A groove one (14) is provided on the connecting shaft (1), and the groove one (14) is arranged in an arc shape on the connecting shaft (1). The pressure hole (11) and the groove one (14) are connected, and the groove one (14) and the connecting hole (21) are connected.

4. A rotary steering device according to claim 1, characterized in that: A second groove (15) is provided on the connecting shaft (1). The second groove (15) is arranged in an arc shape on the connecting shaft (1). The pressure relief hole (12) and the second groove (15) are connected. The second groove (15) and the connecting hole (21) are connected.

5. A rotary steering device according to claim 3, characterized in that: The pressure holes (11) are divided into two rows, the connection holes (21) are divided into two rows, the groove one (14) is connected to the pressure holes (11) in the lower row, and the groove one (14) is connected to the corresponding connection holes (21) in the lower row.

6. A rotary steering device according to claim 1, characterized in that: The pressure relief holes (12) are divided into two rows, the connection holes (21) are divided into two rows, the second groove (15) is connected to the upper row of connection holes (21), and the second groove (15) is connected to the corresponding upper row of connection holes (21).

7. A rotary steering device according to claim 1, characterized in that: The connecting shaft (1) is provided with a seal 1 (16) and a seal 2 (17), the seal 1 (16) and the seal 2 (17) are used to form a closed space between the connecting shaft (1) and the rotating sleeve (2), and the pressure hole (11) and the pressure relief hole (12) are respectively connected to the closed space.

8. A rotary steering device according to claim 5, characterized in that: A sealing member 3 (18) is also provided on the connecting shaft (1), and the sealing member 3 (18) is used to divide the closed space formed between the connecting shaft (1) and the rotating sleeve (2) into two sealed chambers.

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