Moment-controllable floating main shaft

Abstract

The utility model provides a controllable torque floating spindle, which belongs to the technical field of floating spindles and comprises a mounting seat, a torque adjusting component and a sliding component, a bearing sleeve is fixedly mounted in the mounting seat, a knuckle bearing is mounted in the middle of the bearing sleeve, and a spindle is inserted in the middle of the knuckle bearing; when the torque of the spindle needs to be adjusted, the spindle is connected with an external air source through an air delivery pipe, compressed air enters the joint bearing through a connector connected with the air delivery pipe, an air pressure chamber is formed in the joint bearing, and the connector is communicated with the air pressure chamber through an air channel. A uniform pressure film is formed between the knuckle bearing and the main shaft, so that floating of the shaft is achieved, the pressure of compressed air is adjusted through the air pressure valve, the buoyancy can be changed, the floating degree of the main shaft and the response to torque are controlled, adjustment according to use requirements is facilitated, and the machining requirements of different materials are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to floating spindle technical field, concretely is controllable torque floating spindle. BACKGROUND

[0002] Plastic products, metal products in the production process because of all aspects, will produce burr, concave-convex and other defects, remove this kind of defect currently mainly adopts manual polishing and the way of polishing robot, since robot belongs to position control mode's movement mechanism, therefore when carrying out deburring operation to workpiece, robot and polishing tool are difficult to adapt to the error existing in workpiece, and it is easy to lead to the event of collision, therefore in deburring operation, usually adopt the spindle with radial floating function to carry out operation, the most front end of floating spindle can swing 360 degrees, and have certain centering restoring force, when spindle contacts workpiece and deviates from the center of gravity, it will have a restoring torque to restore to the axis, the restoring torque can guarantee the preset contact pressure between spindle and workpiece, avoid the event of collision, but the existing floating spindle is inconvenient for torque adjustment, so that it is impossible to satisfy the production and processing of different materials, thereby reducing the scope of application. SUMMARY

[0003] The utility model discloses a controllable torque floating spindle, to solve the problem that the existing floating spindle inconvenient for torque adjustment, so that it is impossible to satisfy the production and processing of different materials, thereby reducing the scope of application.

[0004] To achieve the above object, the utility model provides the following technical scheme: a controllable torque floating spindle, including mounting seat, torque adjusting assembly and sliding assembly,

[0005] Among them: the inside fixed mounting of mounting seat has bearing sleeve, the middle installation of bearing sleeve has joint bearing, the middle part of joint bearing is inserted with spindle;

[0006] Torque adjusting assembly includes the connecting head fixedly installed at the top of bearing sleeve, the surface of connecting head is fixedly installed with gas pipe, one end of gas pipe is connected with external gas source, the surface of gas pipe is installed with gas pressure valve, the inside of joint bearing is provided with gas pressure chamber, the inside of joint bearing is provided with gas channel that communicates with gas pressure chamber, and the connecting head is connected with the corresponding gas channel.

[0007] Sliding assembly includes the sliding groove that surrounds and is set up in the inner wall of joint bearing, the surface of spindle is installed with a plurality of sliding blocks, and the sliding block is slidably installed in the inside sliding groove.

[0008] As one preferred scheme of the utility model, a first dust cover is mounted at the front end of the mounting seat, a second dust cover is mounted at one end of the bearing sleeve, and the two ends of the main shaft are respectively inserted into the first dust cover and the second dust cover.

[0009] As one preferred scheme of the utility model, an annular lubricating groove is formed in the joint bearing, and one end of the plurality of sliding grooves is communicated with the annular lubricating groove.

[0010] As one preferred scheme of the utility model, a cooling water channel is formed in the middle of the surface of the bearing sleeve, sealing grooves are formed at both ends of the surface of the bearing sleeve, and a sealing ring is embedded in the sealing groove.

[0011] As one preferred scheme of the utility model, the first dust cover and the second dust cover are detachable rubber sleeve bodies.

[0012] As one preferred scheme of the utility model, an oil injection hole is formed in the surface of the joint bearing and communicated with the annular lubricating groove.

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

[0014] (1) The connecting head is mounted at the top of the bearing sleeve, the gas conveying pipe is mounted on the surface of the connecting head, when the main shaft torque needs to be adjusted, the gas conveying pipe is connected with the external gas source, the compressed gas enters the joint bearing position through the connecting head connected with the gas conveying pipe, the gas pressure chamber is formed in the joint bearing, the connecting head is communicated with the gas pressure chamber through the gas channel, when the compressed gas enters the gas pressure chamber, the uniform pressure film is formed between the joint bearing and the main shaft, so that the shaft floating is realized, the size of the floating force can be changed by adjusting the pressure of the compressed air through the gas pressure valve, the floating degree of the main shaft and the response to the torque are controlled, the adjustment according to the use demand is facilitated, and the different material processing demands are met.

[0015] (2) The first dust cover is mounted at the front end of the mounting seat, the second dust cover is mounted at one end of the bearing sleeve, and the two ends of the main shaft are respectively inserted into the first dust cover and the second dust cover after being mounted in the joint bearing, the dust cover can be used to isolate the dust and impurities from entering the main shaft. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 It is the sectional structure schematic view of the utility model;

[0018] Figure 3 It is the torque adjusting assembly structure schematic view of the utility model;

[0019] Figure 4 The utility model discloses a sliding assembly structure schematic diagram.

[0020] In the drawing: 1, mounting seat, 2, bearing sleeve, 3, joint bearing, 4, main shaft,

[0021] 5, torque adjusting assembly, 51, connecting head, 52, gas pipe, 53, gas pressure valve, 54, gas chamber, 55, gas channel,

[0022] 6, sliding assembly, 61, sliding groove, 62, sliding block, 7, first dust cover, 8, second dust cover,

[0023] 9, annular lubricating groove,

[0024] 10, cooling water channel, 11, sealing groove, 12, oil injection hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the following will combine the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0026] Please refer to Figure 1 , Figure 4 A controllable torque floating main shaft, including: mounting seat 1, torque adjusting assembly 5 and sliding assembly 6, the inside fixed mounting of mounting seat 1 has bearing sleeve 2, the middle part of bearing sleeve 2 is installed with joint bearing 3, the middle part of joint bearing 3 is inserted with main shaft 4,

[0027] Please refer to Figure 2 , Figure 3 Torque adjusting assembly 5 includes connecting head 51 fixedly installed at the top of bearing sleeve 2, the surface of connecting head 51 is fixedly installed with gas pipe 52, one end of gas pipe 52 is connected with external gas source, the surface of gas pipe 52 is installed with gas pressure valve 53, the inside of joint bearing 3 is provided with gas chamber 54, the inside of joint bearing 3 is provided with gas channel 55 communicated with gas chamber 54, and connecting head 51 is connected with gas channel 55 correspondingly.

[0028] Specific use: the top of the bearing sleeve 2 is provided with a connecting head 51, and the surface of the connecting head 51 is provided with a gas conveying pipe 52. When it is necessary to adjust the torque of the main shaft 4, the gas conveying pipe 52 is connected with an external gas source, compressed gas enters the position of the joint bearing 3 through the connecting head 51 connected with the gas conveying pipe 52, a gas pressure chamber 54 is formed in the joint bearing 3, and the connecting head 51 is in communication with the gas pressure chamber 54 through a gas channel 55. When the compressed gas enters the inside of the gas pressure chamber 54, a uniform pressure film is formed between the joint bearing 3 and the main shaft 4, so that the shaft is floating. The size of the floating force can be changed by adjusting the pressure of the compressed air through the gas pressure valve 53, so that the floating degree of the main shaft 4 and the response to the torque can be controlled, and the adjustment can be facilitated according to the use requirement, so that the different material processing requirements can be met.

[0029] Please refer to Figure 1 , Figure 4 , the sliding assembly 6 comprises a sliding groove 61 formed around the inner wall of the joint bearing 3, and a plurality of sliding blocks 62 are arranged around the surface of the main shaft 4 and are slidably arranged in the sliding groove 61.

[0030] Specific use: the inner wall of the joint bearing 3 is provided with a sliding groove 61, and the main shaft 4 is slidably arranged in the sliding groove 61 through the sliding blocks 62 arranged on the surface, so that the main shaft 4 can be adjusted to float up and down in the joint bearing 3.

[0031] Please refer to Figure 1 , the front end of the mounting seat 1 is provided with a first dust cover 7, one end of the bearing sleeve 2 is provided with a second dust cover 8, and the two ends of the main shaft 4 are respectively inserted into the first dust cover 7 and the second dust cover 8.

[0032] Specific use: the front end of the mounting seat 1 is provided with a first dust cover 7, one end of the bearing sleeve 2 is provided with a second dust cover 8, and the two ends of the main shaft 4 are respectively inserted into the first dust cover 7 and the second dust cover 8 after the main shaft 4 is arranged in the joint bearing 3. The dust cover can be used to isolate dust and impurities from entering the inside of the main shaft 4.

[0033] Please refer to Figure 4 , the inside of the joint bearing 3 is provided with an annular lubricating groove 9, one end of the sliding groove 61 is in communication with the annular lubricating groove 9, the surface of the joint bearing 3 is provided with an oil injection hole 12, and the oil injection hole 12 is in communication with the annular lubricating groove 9.

[0034] Specific use: the inside of the joint bearing 3 is provided with an annular lubricating groove 9, and the sliding groove 61 is in communication with the annular lubricating groove 9. When the annular lubricating groove 9 is filled with lubricating liquid through the oil injection hole 12, the lubricating liquid can flow into the sliding groove 61, so as to lubricate the sliding blocks 62 and reduce the wear of the main shaft 4 and the joint bearing 3.

[0035] Please refer to Figure 2 ,Figure 3 The surface of the bearing sleeve 2 is provided with a cooling water channel 10 in the middle, and the surface of the bearing sleeve 2 is provided with a sealing groove 11 at both ends of the cooling water channel 10, and a sealing ring is embedded in the sealing groove 11.

[0036] In specific use: the surface of the bearing sleeve 2 is provided with a cooling water channel 10 in the middle, and the surface of the bearing sleeve 2 is provided with a sealing groove 11 at both ends of the cooling water channel 10, and a sealing ring is embedded in the sealing groove 11 to prevent the cooling water from leaking.

[0037] Please refer to Figure 1 The first dust cover 7 and the second dust cover 8 are detachable rubber sleeves.

[0038] In specific use: the first dust cover 7 and the second dust cover 8 are rubber sleeves, which can be detached and replaced during subsequent maintenance.

[0039] When the torque of the main shaft 4 needs to be adjusted, the gas conveying pipe 52 is connected with an external gas source, and the compressed gas enters the position of the joint bearing 3 through the connecting head 51 connected with the gas conveying pipe 52. The joint bearing 3 is provided with a gas pressure chamber 54 inside, and the connecting head 51 is in communication with the gas pressure chamber 54 through a gas channel 55. When the compressed gas enters the inside of the gas pressure chamber 54, a uniform pressure film is formed between the joint bearing 3 and the main shaft 4, so as to realize the floating of the shaft. The pressure of the compressed air is adjusted through the gas pressure valve 53, so as to change the size of the floating force, and then control the floating degree of the main shaft 4 and the response to the torque, so as to adjust according to the use requirement, and meet the processing requirement of different materials.

[0040] The contents not described in detail in the description belong to the prior art known by the person skilled in the art, although the utility model has been described in detail with reference to the foregoing embodiments, the person skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A controllable torque floating spindle, characterized in that, include: Mounting base (1), inside which a bearing sleeve (2) is fixedly installed, a spherical bearing (3) is installed in the middle of the bearing sleeve (2), and a main shaft (4) is inserted through the middle of the spherical bearing (3); Torque adjustment assembly (5), the torque adjustment assembly (5) includes a connector (51) fixedly installed on the top of the bearing sleeve (2), an air supply pipe (52) fixedly installed on the surface of the connector (51), one end of the air supply pipe (52) is connected to an external air source, a pressure valve (53) is installed on the surface of the air supply pipe (52), a pressure chamber (54) is opened inside the joint bearing (3), an air passage (55) communicating with the pressure chamber (54) is opened inside the joint bearing (3), and the connector (51) is correspondingly connected to the air passage (55); The sliding assembly (6) includes a sliding groove (61) surrounding the inner wall of the spherical bearing (3), and a plurality of sliders (62) are mounted around the surface of the main shaft (4), the sliders (62) being slidably mounted inside the sliding groove (61).

2. The controllable torque floating spindle according to claim 1, characterized in that: The front end of the mounting base (1) is equipped with a first dust cover (7), one end of the bearing sleeve (2) is equipped with a second dust cover (8), and the two ends of the main shaft (4) are respectively inserted into the first dust cover (7) and the second dust cover (8).

3. The controllable torque floating spindle according to claim 1, characterized in that: The joint bearing (3) has an annular lubrication groove (9) inside, and one end of each of the sliding grooves (61) is connected to the annular lubrication groove (9).

4. The controllable torque floating spindle according to claim 1, characterized in that: A cooling water channel (10) is provided in the middle of the surface of the bearing sleeve (2), and a sealing groove (11) is provided at both ends of the cooling water channel (10) on the surface of the bearing sleeve (2), and a sealing ring is embedded in the sealing groove (11).

5. A controllable torque floating spindle according to claim 2, characterized in that: The first dust cover (7) and the second dust cover (8) are detachable rubber sleeves.

6. A controllable torque floating spindle according to claim 1, characterized in that: The surface of the spherical bearing (3) is provided with an oil injection hole (12), which is connected to the annular lubrication groove (9).

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