Wire processing device

Abstract

The present invention discloses a wire processing device, comprising: a holding base, which is used to connect to an external device and move along a preset processing trajectory driven by the external device; a vertically penetrating mounting hole is formed in the holding base; a columnar member, which penetrates through the mounting hole, and a tool for processing the edge of a workpiece is installed at the lower end of the columnar member; a ring body, which is arranged in the mounting hole and sleeved outside the columnar member; wherein: the ring body is pivotally connected to the holding base by a first pin shaft; the columnar member is pivotally connected to the ring body by a second pin shaft, so that the columnar member has a first pivot center corresponding to the axis of the first pin shaft and a second pivot center corresponding to the axis of the second pin shaft and perpendicular to the first pivot center; a damping mechanism, which is at least used to provide impedance for the columnar member to resist its swinging around the first pivot center and impedance to resist its swinging around the second pivot center.

Description

Technical Field

[0001] The present invention relates to the technical field of processing equipment, and particularly to a wire processing device. Background Art

[0002] A wire processing device is a device for processing the outer edge of a workpiece. For example, a wire processing device equipped with a grinding head (such as a grinding head with a columnar shape) grinds the outer edge of a casting to make the outer edge of such a workpiece obtain better appearance quality.

[0003] The entire wire processing device generally moves along a preset processing trajectory under the drive of an external device. This processing trajectory is usually designed and programmed according to the outer edge trajectory of the workpiece. However, due to manufacturing errors in the previous process of the workpiece, for example, for castings, the outer edges of each workpiece are almost different and have a certain error from the design dimensions. This makes the outer edge trajectory of the workpiece and the processing trajectory of the wire processing device generate errors. As Figure 1 shown, this results in: when the tool 1000 of the wire processing device processes the outer edge 2001 of the workpiece 2000, an impact will occur between the tool 1000 (such as a grinding head) and the workpiece 2000. On the one hand, this impact accelerates the wear of the tool and even damages the tool, such as breaking the tool. On the other hand, it causes the appearance quality of the outer edge of the processed workpiece to be uneven. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a wire processing device to solve the above problems in the prior art.

[0005] To achieve the above purpose, the present invention provides a wire processing device.

[0006] A wire processing device includes:

[0007] A holding seat, which is used to connect to an external device and moves along a preset processing trajectory under the drive of the external device; a vertically penetrating mounting hole is provided on the holding seat;

[0008] A columnar member, which penetrates through the mounting hole, and a tool for processing the edge of the workpiece is installed at the lower end of the columnar member;

[0009] A ring body, which is arranged in the mounting hole and sleeved outside the columnar member; wherein: the ring body is pivotally connected to the holding seat by a first pin shaft; the columnar member is pivotally connected to the ring body by a second pin shaft, so that the columnar member has a first pivot center corresponding to the axis of the first pin shaft and a second pivot center corresponding to the axis of the second pin shaft and perpendicular to the first pivot center;

[0010] A damping mechanism, which is at least used to provide impedance for the columnar component to resist its swinging around the first pivot center and impedance for the columnar component to resist its swinging around the second pivot center.

[0011] Preferably, the wire processing device further includes a sleeve body, which is wrapped outside the columnar component and fixedly connected to the columnar component; wherein:

[0012] The first pin shaft extends into the ring body from outside the holding seat so that the ring body is pivotally connected to the holding seat;

[0013] The second pin shaft extends into the sleeve body from outside the ring body so that the columnar component is pivotally connected to the ring body; wherein:

[0014] The damping mechanism provides impedance for the columnar component to resist its swinging around the first pivot center by applying force to the ring body on both sides of the first pivot center.

[0015] The damping mechanism provides impedance for the columnar component to resist its swinging around the second pivot center by applying force to the sleeve body on both sides of the second pivot center.

[0016] Preferably, embedding grooves are respectively formed at opposite positions on both sides of the second pivot center at the upper end of the ring body;

[0017] The ring body is sleeved outside the sleeve body, and radially extending plate portions are respectively formed at opposite positions on both sides of the second pivot center at the upper end of the sleeve body;

[0018] The two plate portions are respectively embedded in the two embedding grooves, and a gap is formed between the plate portion and the bottom of the embedding groove; wherein:

[0019] The damping mechanism is used to apply force to the opposite positions on both sides of the second pivot center at the upper end of the ring body and to apply force to the two plate portions at the upper end of the sleeve body.

[0020] Preferably, the damping mechanism includes:

[0021] A guiding cavity, which includes two first guiding cavities and two second guiding cavities formed in the holding seat; the two first guiding cavities are respectively located on both sides of the first pivot center and are opposite to the upper end of the ring body, and the two second guiding cavities are respectively located on both sides of the second pivot center and are opposite to the two plate portions of the sleeve body;

[0022] A force-applying cylinder body, which includes two first force-applying cylinder bodies respectively arranged in the two first guiding cavities and two second force-applying cylinder bodies respectively arranged in the two second guiding cavities; wherein:

[0023] The first force - applying cylinder applies force to the upper ends of the ring bodies located on both sides of the first pivot center by means of the pressurized gas entering the first guiding cavity;

[0024] The second force - applying cylinder applies force to the plate portions of the sleeve bodies located on both sides of the second pivot center by means of the pressurized gas entering the second guiding cavity.

[0025] Preferably, the damping mechanism further includes:

[0026] A cover, which is buckled on the holding seat to block the first guiding cavity and the second guiding cavity; a first sunk groove whose trajectory passes through the two first guiding cavities and a second sunk groove whose trajectory passes through the two second guiding cavities are formed on the upper end surface of the cover. First air inlet holes are formed at positions corresponding to the two first guiding cavities at the bottom of the first sunk groove, and second air inlet holes are formed at positions corresponding to the two second guiding cavities at the bottom of the second sunk groove;

[0027] A buckling cover, which is buckled on the cover to enclose a first air passage and a second air passage corresponding to the first sunk groove and the second sunk groove. A first air inlet interface and a second air inlet interface are formed on the buckling cover and are respectively communicated with the first air passage and the second air passage.

[0028] Preferably, sealing rings are arranged between the outer sides of the first sunk groove and the second sunk groove and the buckling cover.

[0029] Preferably, sealing rings are arranged between the outer sides of the first guiding cavity and the second guiding cavity and the cover.

[0030] Preferably, an arc - shaped notch is formed in the circumferential direction at the lower end of the sleeve body, and an arc - shaped locking strip is arranged at the arc - shaped notch. The arc - shaped locking strip is connected to the sleeve body by bolts so as to tightly wrap the columnar component by screwing the bolts.

[0031] Preferably, a first sealing sleeve is arranged between the upper end of the holding seat and the columnar component, and a second sealing sleeve is arranged between the lower end of the sleeve body and the columnar component.

[0032] Preferably, bushings are arranged between the first guiding cavity and the first force - applying cylinder and between the second guiding cavity and the second force - applying cylinder.

[0033] Compared with the prior art, the wire processing device provided by the present invention has the following advantages: The present invention enables the columnar component to perform "universal" movement relative to the holding seat. When an impact force is generated between the tool and the workpiece, the columnar component buffers the impact force by swinging in the direction of the impact force, so as to limit the sudden increase in the contact force between the tool and the workpiece. Furthermore, it can to a certain extent reduce the reduction of the appearance quality caused by the impact, and can also reduce the tool wear rate and to a certain extent avoid tool damage caused by the impact.

[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not intended to limit the present invention.

[0035] An overview of various implementations or examples of the technologies described in the present invention is not a full disclosure of the entire scope or all features of the disclosed technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In the drawings which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetical suffixes or different alphabetical suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example and not limitation, and are used together with the description and the claims to explain the embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be an exhaustive or exclusive embodiment of the device or method.

[0037] Figure 1 It is a state view when an impact occurs between the tool and the workpiece in the prior art.

[0038] Figure 2 It is a schematic perspective view of the wire processing device provided by the embodiment of the present invention.

[0039] Figure 3 It is a schematic exploded perspective view of the wire processing device provided by the embodiment of the present invention.

[0040] Figure 4 It is a top view of the wire processing device provided by the embodiment of the present invention.

[0041] Figure 5 For Figure 4 Cross-sectional view taken along line A-A.

[0042] Figure 6 Based on Figure 5 Schematic exploded plan view.

[0043] Figure 7 For Figure 4 Cross-sectional view taken along line B-B.

[0044] Figure 8 is a schematic diagram of plane decomposition based on Figure 7 .

[0045] Figure 9 is a schematic diagram of the assembly relationship among the ring body, the sleeve body and the force - applying column body in the wire processing device provided by the embodiment of the present invention.

[0046] Figure 10 is a schematic diagram of the processing state of the wire processing device provided by the embodiment of the present invention in the first posture.

[0047] Figure 11 is a schematic diagram of the processing state of the wire processing device provided by the embodiment of the present invention in the second posture.

[0048] Figure 12 is a schematic diagram of the swinging direction of the columnar component in the wire processing device provided by the embodiment of the present invention.

[0049] Reference numerals:

[0050] 10 - holding seat; 11 - mounting hole; 12 - threaded hole; 20 - ring body; 21 - relative position; 22 - embedding groove; 31 - first pin shaft; 311 - copper sleeve; 312 - gasket; 32 - second pin shaft; 321 - copper sleeve; 322 - gasket; 40 - sleeve body; 41 - plate part; 42 - arc - shaped locking strip; 43 - connecting sleeve; 50 - damping mechanism; 51 - first guiding cavity; 52 - first force - applying column body; 53 - bushing; 54 - sealing ring; 55 - cover; 561 - first air inlet hole; 562 - second air inlet hole; 563 - first air passage; 564 - second air passage; 565 - sealing ring; 57 - buckle cover; 571 - first air inlet interface; 572 - second air inlet interface; 58 - second guiding cavity; 59 - second force - applying column body; 61 - first sealing sleeve; 62 - second sealing sleeve; 100 - columnar component; 200 - cutter; 300 - workpiece; 301 - outer edge. Detailed implementation manners

[0051] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0052] Unless otherwise defined, technical terms or scientific terms used in the present invention shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0053] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted in the present invention.

[0054] As Figures 2 to 12 shown, an embodiment of the present invention discloses a wire processing device for processing the outer edge 301 of a workpiece 300.

[0055] The wire processing device includes: a holding seat 10, a columnar member 100, a ring body 20, and a damping mechanism 50.

[0056] As Figure 2 shown, the holding seat 10 has an installation side surface on which threaded holes 12 are arranged. By passing fasteners through the threaded holes 12, the holding seat 10 is fixed to an external device, which may be a manipulator of an industrial robot. The manipulator drives the entire wire processing device to move along a preset processing trajectory through a fixed connection with the holding seat 10 to perform processing on the outer edge 301 of the workpiece 300. A vertically penetrating installation hole 11 is formed in the holding seat 10.

[0057] The columnar member 100 passes through the installation hole 11 of the holding seat 10. The lower end of the columnar member 100 is used to install a tool 200, for example, a grinding head or a milling cutter, which is used to process the edge of the workpiece 300. The inside of the columnar member 100 can be used to fix a motor. The output shaft of the motor extends out of the lower end of the columnar member 100 and the tool 200 is fixedly connected to the output shaft. Then, under the drive of the motor, the tool 200 rotates to grind, mill, etc. the workpiece 300. Of course, the columnar member 100 itself can also be a motor with a columnar shape.

[0058] As Figure 5 and Figure 7As shown, the ring body 20 is disposed within the mounting hole 11 of the holding seat 10 and sleeved outside the columnar member 100, and a certain annular gap is formed between the ring body 20 and the mounting hole 11 and between the ring body 20 and the columnar member 100.

[0059] In this embodiment, the connection relationships among the holding seat 10, the columnar member 100, and the ring body 20 are as follows:

[0060] The ring body 20 is pivotally connected to the holding seat 10 by a first pin shaft 31; the columnar member 100 is pivotally connected to the ring body 20 by a second pin shaft 32, and the first pin shaft 31 and the second pin shaft 32 are perpendicularly arranged. Thus, the columnar member 100 has a first pivot center corresponding to the axis of the first pin shaft 31 and a second pivot center corresponding to the axis of the second pin shaft 32 and perpendicular to the first pivot center. That is to say, the columnar member 100 has two perpendicular pivot centers, which enables the columnar member 100 to have the following movement relationship relative to the holding seat 10: As Figure 12 shown, by rotating around the first pivot center and / or the second pivot center, the columnar member 100 can swing in any direction relative to the holding seat 10. In the mechanical field, this swinging characteristic of the columnar member 100 relative to the holding seat 10 is called "universal" movement. For example, a universal coupling also has this characteristic.

[0061] The above movement relationship of the columnar member 100 relative to the holding seat 10 enables: As Figure 10 and Figure 11 shown, when the tool 200 processes the edge of the workpiece 300 and generates an impact, the columnar member 100 swings in the direction of the impact force that the workpiece 300 reacts against the tool 200 to buffer the impact, thereby effectively buffering the impact force, and further being able to effectively reduce the reduction in the appearance quality of the outer edge 301 of the workpiece 300 caused by the impact.

[0062] It should be noted that if the columnar member 100 is rigidly connected to an external device as in the prior art (for example, connected to the external device in a fixed manner), when the tool 200 processes the outer edge 301 of the workpiece 300 and an impact occurs between the tool 200 and the workpiece 300 due to the inconsistent machining trajectory of the tool 200 and the outer edge 301 trajectory of the workpiece 300, this impact will cause the contact force between the tool 200 and the workpiece 300 to suddenly increase, thereby causing an increase in the machining amount (such as grinding amount or milling amount) of the tool 200 on the workpiece 300, and further causing a reduction in the appearance quality of the position of the processed outer edge 301. Moreover, this impact may also cause the following consequences: 1. The wear rate of the tool 200 increases; 2. The tool 200 breaks or shatters due to the impact.

[0063] The present invention enables the columnar component 100 to perform "universal" movement relative to the holding seat 10. When an impact force is generated between the tool 200 and the workpiece 300, the columnar component 100 buffers the impact force by swinging in the direction of the impact force, so as to limit the sudden increase in the contact force between the tool 200 and the workpiece 300. Furthermore, it can to a certain extent reduce the reduction of the appearance quality caused by the impact, and can also reduce the wear rate of the tool 200 and avoid the damage of the tool 200 due to the impact to a certain extent.

[0064] The damping mechanism 50 is used to provide impedance for the columnar component 100 to resist its swinging around the first pivot center and to resist its swinging around the second pivot center.

[0065] The above function of the damping mechanism 50 should be understood as:

[0066] Without the damping mechanism 50, when an impact occurs between the tool 200 and the workpiece 300, the columnar component 100 will swing in the direction of the impact force given by the workpiece 300 to the tool 200, so that the tool 200 will hardly have a contact force with the workpiece 300. Since the contact force is a necessary condition to ensure the machining of the workpiece 300 by the tool 200, this will inevitably cause the tool 200 to be unable to machine the workpiece 300 during the impact. That is, without the damping mechanism 50, the columnar component 100 is in a passive and free state.

[0067] By adding the damping mechanism 50, an impedance can be applied to the columnar component 100 to limit the swinging of the columnar component 100. Thus: when the tool 200 is impacted (it should be understood that the impact force corresponding to this impact is surely greater than the above-mentioned contact force required for machining the workpiece 300), by means of the impedance provided by the damping mechanism 50, while the columnar component 100 swings in the direction of the impact force, the tool 200 still has a certain contact force with the workpiece 300 to ensure that the tool 200 can still machine the workpiece 300 during the impact; when the tool 200 performs normal machining on the edge of the workpiece 300 (that is, no impact occurs between the tool 200 and the workpiece 300), by means of the impedance provided by the damping mechanism 50, a contact force for ensuring normal machining can also be obtained between the tool 200 and the workpiece 300 (without the damping mechanism 50, the columnar component 100 is in a free swinging state, resulting in no contact force being formed between the tool 200 and the workpiece 300).

[0068] In summary, the function of the damping mechanism 50 is actually at least to provide a certain stiffness between the columnar component 100 and the holding seat 10, so that a certain contact force can be formed between the tool 200 and the workpiece 300 in any machining situation to ensure that the tool 200 can perform real-time machining on the workpiece 300.

[0069] There are various ways for the damping mechanism 50 to provide impedance. For example, the damping mechanism 50 is configured to directly apply a force to the columnar member 100 to resist the swinging of the columnar member 100 around two pivot centers.

[0070] There are various types of forces provided by the damping mechanism 50. For example, the damping mechanism 50 is configured to apply a force to the columnar member 100 using a spring. At this time, the force resisting the columnar member 100 is the elastic force of the spring.

[0071] However, when using a spring to provide impedance to the columnar member 100 (or when applying a force to the columnar member 100 using a spring), the impedance provided to the columnar member 100 cannot be adjusted because the force of the spring on the columnar member 100 cannot be adjusted (unless the spring is replaced or the compression amount of the spring is changed).

[0072] In some embodiments:

[0073] The wire processing device further includes a sleeve 40. The sleeve 40 is wrapped around the columnar member 100. An arc-shaped notch is provided at the lower end of the sleeve 40 along the circumferential direction. As Figure 3 shown, an arc-shaped locking strip 42 is provided at the arc-shaped notch. The arc-shaped locking strip 42 is connected to the sleeve 40 by bolts to tightly wrap the columnar member 100 by screwing the bolts, so that the sleeve 40 and the columnar member 100 form a fixed connection.

[0074] The first pin shaft 31 extends from outside the holding seat 10 into the ring body 20 so that the ring body 20 is pivotally connected to the holding seat 10. A gasket 312 is provided between the holding seat 10 and the tail of the first pin shaft 31.

[0075] A copper sleeve 311 is provided between the head of the first pin shaft 31 and the ring body 20. Moreover, the first pin shaft 31 is threadedly connected to the holding seat 10 to prevent the first pin shaft 31 from freely disengaging from the ring body 20 and the holding seat 10.

[0076] The second pin shaft 32 extends from outside the ring body 20 into the sleeve 40 so that the columnar member 100 is pivotally connected to the ring body 20; a gasket 322 is provided between the ring body 20 and the tail of the second pin shaft 32. A copper sleeve 321 is provided between the head of the second pin shaft 32 and the sleeve 40. Moreover, the second pin shaft 32 is threadedly connected to the ring body 20 to prevent the second pin shaft 32 from disengaging from the sleeve 40 and the ring body 20.

[0077] As Figure 3 Combined with Figure 5 and Figure 7As shown, the ring body 20 is sleeved on the upper part of the sleeve body 40. Radially extending plate portions 41 are formed at opposite positions on both sides of the upper end of the sleeve body 40 and located on both sides of the second pivot center; embedding grooves 22 are provided at opposite positions on both sides of the upper end of the ring body 20 and located on both sides of the second pivot center; the two plate portions 41 are respectively embedded in the two embedding grooves 22, and a gap is formed between the plate portions 41 and the bottom of the embedding grooves 22.

[0078] As Figure 5 and Figure 7 shown, the damping mechanism 50 is used to apply force to the opposite positions 21 on both sides of the upper end of the ring body 20 and located on both sides of the second pivot center, and is also used to apply force to the two plate portions 41 at the upper end of the sleeve body 40.

[0079] In these embodiments, the damping mechanism 50 applies force to the upper ends of the ring body 20 and the sleeve body 40 by means of compressed gas. Specifically, the damping mechanism 50 includes a guiding cavity and a force-applying cylinder; the guiding cavity includes two first guiding cavities 51 and two second guiding cavities 58 opened in the holding seat 10; the two first guiding cavities 51 are respectively located on both sides of the first pivot center and opposite to the upper end of the ring body 20, and the two second guiding cavities 58 are respectively located on both sides of the second pivot center and opposite to the two plate portions 41 of the sleeve body 40; the force-applying cylinder includes two first force-applying cylinders 52 respectively arranged in the two first guiding cavities 51 and two second force-applying cylinders 59 respectively arranged in the two second guiding cavities 58; wherein: the first force-applying cylinder 52 applies force to the upper ends of the ring body 20 located on both sides of the first pivot center by means of the compressed gas entering the first guiding cavity 51; the second force-applying cylinder 59 applies force to the plate portions 41 of the sleeve body 40 located on both sides of the second pivot center by means of the compressed gas entering the second guiding cavity 58.

[0080] The advantages of the above embodiments are as follows:

[0081] 1. The pressure of the compressed gas is easy to adjust, so that the forces applied by the first force-applying cylinder 52 and the second force-applying cylinder 59 to the ring body 20 and the sleeve body 40 can be conveniently adjusted. Furthermore, the stiffness between the columnar component 100 and the holding seat 10 can be adjusted, and thus the swinging timing of the columnar component 100 when encountering an impact can be adjusted (for example, by increasing the pressure of the compressed gas, the tool 200 can swing to buffer the impact only when encountering a large impact; for another example, by reducing the pressure of the compressed gas, the tool 200 can swing to buffer the impact when encountering a small impact), and the maximum contact force between the tool 200 and the workpiece 300 can also be adjusted (the maximum contact force refers to that when the contact force exceeds this value, the tool 200 will swing along with the columnar component 100).

[0082] 2. By adding the sleeve body 40, the second pin shaft 32 does not need to directly penetrate the columnar component 100, and the columnar component 100 can be pivotally connected to the ring body 20 by means of the second pin shaft 32.

[0083] 3. The cooperation between the arc-shaped notch and the arc-shaped locking strip 42 enables the fixed connection between the sleeve body 40 and the columnar component 100 (while forming a clearance fit between the inner hole of the sleeve body 40 and the columnar component 100). By loosening the fastener, the columnar component 100 can be disengaged from the sleeve body 40, thereby improving the assemblability of the device.

[0084] 4. The cooperation between the upper-end structure of the sleeve body 40 and the upper-end structure of the ring body 20 facilitates the more concentrated application of force by the damping mechanism 50 to both of them, enabling the components of the damping mechanism 50 to be arranged more compactly.

[0085] In some embodiments, as Figure 3 and in combination with Figure 5 and Figure 7 shown, the damping mechanism 50 further includes: a cover 55 and a buckle cover 57. The cover 55 is buckled on the holding seat 10 for blocking the first guiding cavity 51 and the second guiding cavity 58 and is fixed on the holding seat 10 by fasteners; on the upper end surface of the cover 55, a first sunk groove whose trajectory passes through the two first guiding cavities 51 and a second sunk groove whose trajectory passes through the two second guiding cavities 58 are provided. At the positions corresponding to the two first guiding cavities 51 at the bottom of the first sunk groove, first air inlet holes 561 are provided, and at the positions corresponding to the two second guiding cavities 58 at the bottom of the second sunk groove, second air inlet holes 562 are provided; the buckle cover 57 is buckled on the cover 55 to enclose a first air passage 563 and a second air passage 564 corresponding to the first sunk groove and the second sunk groove. On the buckle cover 57, a first air inlet interface 571 and a second air inlet interface 572 corresponding to and communicating with the first air passage 563 and the second air passage 564 respectively are provided, and the buckle cover 57 is fixed on the cover 55 by fasteners. In these embodiments, the two first guiding cavities 51 are communicated with a first air passage 563 through the two first air inlet holes 561; the two second guiding cavities 58 are communicated with a second air passage 564 through the two second air inlet holes 562. Thus, the pressure gas entering the first air passage 563 through the first air inlet interface 571 makes the pressure received by the first force-applying cylinders 52 in the two first guiding cavities 51 the same, and further makes the forces applied to both sides of the first pivot center the same; the pressure gas entering the second air passage 564 through the second air inlet interface 572 makes the pressure received by the second force-applying cylinders 59 in the two second guiding cavities 58 the same, and further makes the forces applied to both sides of the second pivot center the same. Preferably, sealing rings 565 are provided between the outer sides of the first sunk groove and the second sunk groove and the buckle cover 57. Preferably, sealing rings 54 are provided between the outer sides of the first guiding cavity 51 and the second guiding cavity 58 and the cover 55.

[0086] The advantages of the above embodiments are:

[0087] 1. By means of two air inlet interfaces, pressure gas is introduced into four guiding cavities, thereby effectively saving the number of connecting air pipes.

[0088] 2. Utilize an air passage to communicate with the guiding cavities on both sides of a pivot center at the same time. On the one hand, it can ensure as much as possible that the columnar body processes the workpiece 300 with the tool 200 in the middle position. On the other hand, when the columnar component 100 swings in two directions around the same pivot center, the stiffness between the columnar component 100 and the holding component is the same.

[0089] 3. The two air passages are respectively communicated with the guiding cavities on both sides of two pivot centers, and thus the stiffness of the columnar component 100 when swinging around the two different pivot centers can be adjusted respectively, so that when the columnar component 100 swings around the two different pivot centers, the stiffness between the columnar component 100 and the holding component is different. Furthermore, by introducing pressure gas with different pressures into the two air passages and adjusting the pressure of the pressure gas, the stiffness between the columnar component 100 and the holding component in any swinging direction can be adjusted.

[0090] Preferably, a first sealing sleeve 61 is arranged between the upper end of the holding seat 10 and the columnar component 100, and a second sealing sleeve 62 is arranged between the lower end of the sleeve body 40 and the columnar component 100 through the connecting sleeve 43; bushings 53 are arranged between the first guiding cavity 51 and the first force - applying cylinder 52 and between the second guiding cavity 58 and the second force - applying cylinder 59; the two sealing sleeves are used to limit external dust from entering the mounting hole 11. The wear - resistance degree of the bushing 53 is configured to be lower than that of the force - applying cylinder, so as to solve the air leakage problem between the bushing 53 and the force - applying cylinder caused by wear by replacing the bushing 53.

[0091] As Figure 12 shown, the columnar component 100 has two pivot centers, so that the columnar component 100 can swing in any direction as Figure 12 shown, and the above - mentioned damping mechanism 50 applies forces to both sides of the two pivot centers respectively. Thus, when the columnar component 100 swings in any direction, it has a certain stiffness relative to the holding seat 10, and the stiffness of the columnar component 100 relative to the holding seat 10 when swinging in any direction can be adjusted by comprehensively adjusting the pressure of the pressure gas in the two air passages.

[0092] However, it should be emphasized that: if it is already known that when the tool 200 processes the workpiece 300, most of the impact forces received by the tool 200 are in a roughly determined direction, try to adjust the attitude of the whole device to: as Figure 11 shown, make the swinging direction of the columnar component 100 around the first pivot center consistent with the impact force, as Figure 10As shown, or cause the columnar member 100 to swing around the second pivot center in the same direction as the impact force. The advantage of such a setting is that: the stiffness of the columnar member 100 that swings around the first pivot center or swings around the second pivot can be adjusted by adjusting the pressure of one air passage, thereby facilitating the adjustment of the maximum contact force between the tool 200 and the workpiece 300 (this maximum contact force means that when the contact force exceeds this value, the tool 200 will swing with the columnar member 100).

[0093] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention having equivalent elements, modifications, omissions, combinations (e.g., solutions where various embodiments intersect), adaptations or changes. The elements in the claims will be broadly interpreted based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and the examples are intended to be considered only as examples, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0094] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of their solutions) can be used in combination with each other. For example, those of ordinary skill in the art can use other embodiments when reading the above description. Additionally, in the above detailed description, various features can be grouped together to simplify the present invention. This should not be construed as an intention that an unclaimed disclosed feature is necessary for any claim. On the contrary, the subject matter of the present invention can be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein as examples or embodiments into the detailed description, where each claim independently serves as a separate embodiment, and considering these embodiments, they can be combined with each other in various combinations or permutations. The scope of the present invention should be determined with reference to the appended claims and the full scope of the equivalent forms empowered by these claims.

[0095] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A wire processing device, characterized in that, Comprising: A holding base, which is used to connect to an external device and moves along a preset processing trajectory driven by the external device; an installation hole penetrating vertically is formed on the holding base; A columnar member, which penetrates through the installation hole, and a tool for machining the edge of a workpiece is installed at the lower end of the columnar member; A ring body, which is arranged in the installation hole and sleeved outside the columnar member; wherein: the ring body is pivotally connected to the holding base by a first pin shaft; the columnar member is pivotally connected to the ring body by a second pin shaft, so that the columnar member has a first pivot center corresponding to the axis of the first pin shaft and a second pivot center corresponding to the axis of the second pin shaft and perpendicular to the first pivot center; A damping mechanism, which is at least used to provide impedance for the columnar member to resist its swinging around the first pivot center and impedance to resist its swinging around the second pivot center; The wire machining device further includes a sleeve body, which is coated outside the columnar member and fixedly connected to the columnar member; wherein: The first pin shaft extends from outside the holding base into the ring body so that the ring body is pivotally connected to the holding base; The second pin shaft extends from outside the ring body into the sleeve body so that the columnar member is pivotally connected to the ring body; wherein: The damping mechanism provides impedance for the columnar member to resist its swinging around the first pivot center by applying force to the ring body on both sides of the first pivot center; The damping mechanism provides impedance for the columnar member to resist its swinging around the second pivot center by applying force to the two plate parts of the sleeve body on both sides of the second pivot center; Embedding grooves are formed at relative positions on both sides of the second pivot center at the upper end of the ring body; The ring body is sleeved outside the sleeve body, and radial extending plate parts are formed at relative positions on both sides of the second pivot center at the upper end of the sleeve body; The two plate parts are respectively embedded in the two embedding grooves, and a gap is formed between the plate part and the bottom of the embedding groove; wherein: The damping mechanism is used to apply force to the relative positions on both sides of the second pivot center at the upper end of the ring body and is used to apply force to the two plate parts at the upper end of the sleeve body; The damping mechanism includes: A guiding cavity, which includes two first guiding cavities and two second guiding cavities formed on the holding base; the two first guiding cavities are respectively located on both sides of the first pivot center and are opposite to the upper end of the ring body, and the two second guiding cavities are respectively located on both sides of the second pivot center and are opposite to the two plate parts of the sleeve body; A force-applying column body, which includes two first force-applying column bodies respectively arranged in the two first guiding cavities and two second force-applying column bodies respectively arranged in the two second guiding cavities; wherein: The first force-applying column body applies force to the upper end of the ring body on both sides of the first pivot center by the pressure gas entering the first guiding cavity; The second force-applying column body applies force to the plate part of the sleeve body on both sides of the second pivot center by the pressure gas entering the second guiding cavity; The damping mechanism further includes: A cover is fastened to the holding seat for blocking the first guiding cavity and the second guiding cavity; a first sunk groove whose trajectory passes through the two first guiding cavities and a second sunk groove whose trajectory passes through the two second guiding cavities are formed on the upper end surface of the cover. First air inlet holes are formed at positions corresponding to the two first guiding cavities at the bottom of the first sunk groove, and second air inlet holes are formed at positions corresponding to the two second guiding cavities at the bottom of the second sunk groove; A snap cover is fastened to the cover to define a first air passage and a second air passage corresponding to the first sunk groove and the second sunk groove respectively. A first air inlet interface and a second air inlet interface are formed on the snap cover and are respectively communicated with the first air passage and the second air passage; Sealing rings are arranged between the outer sides of the first sunk groove and the second sunk groove and the snap cover; Sealing rings are arranged between the outer sides of the first guiding cavity and the second guiding cavity and the cover; 2. The wire processing device according to claim 1, characterized in that, An arc-shaped notch is formed in the circumferential direction at the lower end of the sleeve body, and an arc-shaped locking strip is arranged at the arc-shaped notch. The arc-shaped locking strip is connected to the sleeve body by bolts so as to tightly wrap the columnar component by screwing the bolts; 3. The wire processing device according to claim 1, characterized in that, A first sealing sleeve is arranged between the upper end of the holding seat and the columnar component, and a second sealing sleeve is arranged between the lower end of the sleeve body and the columnar component; 4. The wire processing device according to claim 1, characterized in that Bushings are arranged between the first guiding cavity and the first force-applying cylinder body and between the second guiding cavity and the second force-applying cylinder body;

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