Surface processing device

Abstract

The present invention discloses a surface processing device, including: a retaining seat, on which a vertically penetrating mounting hole is opened; a columnar component, through which the mounting hole is penetrated, and a processing tool for processing the end face of a workpiece is installed at the lower end of the columnar component; the columnar component is pivotally connected to the retaining seat by a pin shaft, so that the columnar component has a pivot center consistent with the linear motion direction of the retaining seat, and the columnar component drives the processing tool to swing around the pivot center in a direction perpendicular to the linear motion; a damping mechanism, which is at least used to provide impedance for the columnar component to resist its swing around the pivot center. After the external equipment drives the surface processing device to move downward and the processing tool contacts the end face of the tool, the columnar component can correct the processing tool from an inclined state to a state consistent with the end face of the workpiece by swinging, so that the processing tool will not cause the end face to have the defect of multiple slopes in the background technology when processing the end face of the workpiece.

Description

Technical Field

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

[0002] The surface processing device is used to process the end surface of the workpiece. For example, the end surface of the workpiece is ground using the surface processing device equipped with a grinding tool, or the end surface of the workpiece is milled using the surface processing device equipped with a milling tool.

[0003] The entire surface processing device usually performs reciprocating linear motion under the drive of an external device, and implements end surface processing by contacting the end surface of the workpiece. However, in some unpredictable or unavoidable situations, such as Figure 1 As shown, the processing tool 1000 (such as a grinding tool) is often in an inclined state relative to the end face 2001 of the workpiece 2000 in a direction perpendicular to the moving direction (the reasons for these situations: for example, there is an installation error between the processing tool and the components in the surface processing device, which causes the processing tool and the end face of the workpiece to be tilted, for example, there is an installation error between the surface processing device and the external equipment, which causes the processing tool and the end face of the workpiece to be tilted, and for example, there is an installation error between the workpiece and the fixture, which causes the processing tool and the end face of the workpiece to be tilted). The processing tool in an inclined state performs reciprocating linear processing on the end face of the workpiece, which will inevitably cause the end face of the workpiece after processing to form the following Figure 1 The multi-channel slope surface 2002 is shown. Summary of the invention

[0004] In view of the above problems in the prior art, an object of the present invention is to provide a surface processing device to solve the above problems in the prior art.

[0005] In order to achieve the above object, the present invention provides a surface processing device, comprising:

[0006] A retaining seat, which is used to be connected to an external device and driven by the external device to perform linear motion; the retaining seat is provided with a vertically penetrating mounting hole;

[0007] A columnar component, through which the mounting hole is formed, and a processing tool for processing the end surface of the workpiece is installed at the lower end of the columnar component; the columnar component is pivotally connected to the retaining seat by a pin shaft, so that the columnar component has a pivot center that is consistent with the linear motion direction of the retaining seat, and the columnar component drives the processing tool to swing around the pivot center in a direction perpendicular to the linear motion;

[0008] The damping mechanism is at least used for providing the columnar component with resistance to the swinging of the columnar component around the pivot center.

[0009] Preferably, the surface processing device further comprises:

[0010] A ring body, which is arranged in the mounting hole and sleeved outside the columnar component, the pin shaft passes through the retaining seat from outside the retaining seat and extends into the ring body, and the damping mechanism is used to apply force to the ring body on both sides of the pivot center;

[0011] A sleeve body, which is covered outside the columnar component and fixedly connected to the columnar component; wherein:

[0012] The sleeve is connected to the ring so that the damping mechanism can provide resistance to the swinging of the columnar component through the sleeve by applying force to the ring.

[0013] Preferably, a step surface is formed in the middle of the sleeve body, and the ring body is sleeved on the sleeve body above the step surface; wherein:

[0014] A shaft retaining ring is arranged on the upper end of the sleeve body, and the shaft retaining ring is overlapped on the upper end of the ring body.

[0015] Preferably, an annular groove is provided at the upper end and the lower end of the inner hole of the ring body, and a shock absorbing ring is provided in the annular groove, wherein:

[0016] The shaft is overlapped with the shock absorbing ring located above by a retaining ring.

[0017] Preferably, the damping mechanism comprises:

[0018] A guide cavity, comprising two pairs of first guide cavities opened in the retaining seat, the two pairs of first guide cavities are respectively located on both sides of the pivot center and are symmetrically arranged, and are opposite to the upper end of the ring body;

[0019] A force-applying column, comprising two pairs of first force-applying columns respectively disposed in two pairs of the first guide cavities;

[0020] The two pairs of the first force-applying columns apply force to the upper end of the ring body by means of the pressurized gas entering the first guide cavity.

[0021] Preferably, the guide cavity further comprises two second guide cavities opened in the retaining seat and respectively located between each pair of the first guide cavities;

[0022] The force-applying column further includes two second force-applying columns respectively disposed in the two second guide cavities, and the two second force-applying columns are used to apply force to the upper end of the ring body; wherein:

[0023] A conical surface is formed in the middle of the second force-applying cylinder;

[0024] The surface processing device also includes two distance detectors, which radially extend from the outer side of the retaining seat into the two second guide cavities respectively, so as to obtain the axial displacement of the second force column by detecting the distance change between the distance detector and the peripheral surface of the second force column.

[0025] Preferably, two sleeve retaining rings are provided on the mounting hole of the retaining seat, and the surface processing device also includes a sealing ring, and a circle of bristles are arranged on the inner wall of the sealing ring. The sealing ring is located between the two shaft retaining rings so that the bristles block the gap between the mounting hole and the columnar component.

[0026] Preferably, the damping mechanism further comprises a cover, which is buckled on the retaining seat to block the first guide cavity and the second guide cavity; wherein:

[0027] The cover is provided with a first air inlet interface corresponding to the first guide cavity one by one, and a second air inlet interface corresponding to the second guide cavity one by one.

[0028] Preferably, an arc-shaped notch is opened in the circumferential direction at the lower end of the sleeve, and an arc-shaped locking strip is arranged at the arc-shaped notch. The arc-shaped locking strip is connected to the sleeve by bolts so as to tightly cover the columnar component by screwing the bolts.

[0029] Compared with the prior art, the surface processing device provided by the present invention has the following advantages:

[0030] By pivotally setting the columnar component on the retaining seat, if the processing tool is in an inclined state relative to the end face of the workpiece on a plane perpendicular to its movement direction, after the external equipment drives the surface processing device to move downward and makes the processing tool contact the end face of the tool, the columnar component can swing to correct the processing tool from the inclined state to a state consistent with the end face of the workpiece. In this way, when the processing tool processes the end face of the workpiece, the end face will not have the defect of multiple slopes as described in the background technology.

[0031] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

[0032] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0034] Figure 1 This is a view showing the machining effect of a machining tool in the prior art on the end face of a workpiece when the machining tool is in a tilted state.

[0035] Figure 2 A schematic diagram of the three-dimensional structure of a surface processing device provided in an embodiment of the present invention.

[0036] Figure 3 The present invention is a schematic three-dimensional exploded view of a surface processing device provided by an embodiment of the present invention.

[0037] Figure 4 A top view of a surface processing device provided by an embodiment of the present invention.

[0038] Figure 5 for Figure 4 AA section view.

[0039] Figure 6 Based on Figure 5 Schematic diagram of the plane decomposition.

[0040] Figure 7 for Figure 4 BB section view.

[0041] Figure 8 for Figure 7 An enlarged view of a portion C.

[0042] Fig. 9 Based on Figure 7 Schematic diagram of the plane decomposition.

[0043] Fig.10 A state view of a surface processing device provided by an embodiment of the present invention in which a processing tool is tilted due to a tilt of a retaining seat (installation error) before processing an end surface of a workpiece.

[0044] Fig.11 A state view of the surface processing device provided by the embodiment of the present invention when processing the end surface of a workpiece (a state in which the columnar member corrects the processing tool to be consistent with the end surface of the workpiece by means of contact force).

[0045] Reference numerals:

[0046] 10-retaining seat; 11-threaded hole; 20-ring body; 21-shock-absorbing ring; 30-pin shaft; 31-copper sleeve; 32-gasket; 40-sleeve body; 41-shaft retaining ring; 42-arc-shaped locking strip; 43-step surface; 50-damping mechanism; 51-first guide cavity; 52-second guide cavity; 53-first force-applying column; 54-second force-applying column; 541-conical surface; 55-bushing; 56-sealing ring; 57-cover; 581-first air inlet interface; 582-second air inlet interface; 61-first sealing sleeve; 62-second sealing sleeve; 70-sealing ring; 71-bristles; 72-sleeve retaining ring; 80-distance detector; 100-columnar component; 200-processing tool; 201-motor; O-pivot center; 300-workpiece; 301-end face. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0050] like Figures 2 to 11As shown, an embodiment of the present invention discloses a surface processing device, which is used to process the end face 301 of a workpiece, for example, milling the end face 301 of the workpiece or grinding the end face 301 of the workpiece. The surface processing device includes: a retaining seat 10, a columnar component 100, a damping mechanism 50 and a processing tool 200.

[0051] like Figure 2 and Figure 3 As shown, the retaining seat 10 has a mounting side surface, on which a threaded hole 11 is arranged. The retaining seat 10 is fixed to an external device by fasteners penetrating the threaded hole 11. The external device can be a manipulator of an industrial robot or a moving part on a linear guide with two feeding directions. The external device is used to make the mounting seat reciprocate linearly on a plane to drive the above-mentioned processing tool 200 of the surface processing device to process the end face 301 of the workpiece. The retaining seat 10 is provided with a vertically penetrating mounting hole.

[0052] The columnar component 100 passes through the mounting hole of the holder 10, and the processing tool 200 is installed at the lower end of the columnar component 100. For example, Figure 5 and Figure 7 As shown, the processing tool 200 is a grinding tool 300, which includes two transmission wheels, abrasive cloths mounted on the two transmission wheels, and a motor 201 for driving one of the transmission wheels to rotate and move the abrasive cloth. The abrasive cloth contacts the end face 301 of the workpiece with a certain pressure (or contact force) along with the transmission wheel to grind the end face 301 of the workpiece; of course, the processing tool 200 can also be a milling cutter that contacts the workpiece with a certain pressure. At this time, the inside of the columnar component 100 can be used to fix the motor, and the output shaft of the motor extends out of the lower end of the columnar component 100. The milling cutter is connected to the output shaft, and then driven by the motor, the milling cutter rotates on its own and performs reciprocating linear motion with the retaining seat 10 to mill the end face 301 of the workpiece. It is also possible that: the columnar component 100 itself is a columnar motor that drives the milling cutter to rotate.

[0053] In the present invention, the columnar component 100 is pivotally connected to the retaining seat 10 via the pin 30, and as shown in FIG. Figure 5 As shown, the pivot center O of the columnar component 100 is consistent with the direction in which the holder 10 moves linearly with the external device (ie, the linear travel direction of the processing tool 200). Figure 7 As shown, this enables the columnar component 100 and the above-mentioned processing tool 200 to swing around the pivot center O in a direction perpendicular to the linear motion (the linear travel direction of the processing tool 200) (or in other words, the columnar component 100 and the processing tool 200 swing in a plane perpendicular to the linear motion direction).

[0054] Thus, if the machining tool 200 is in an inclined state relative to the end surface 301 of the workpiece on a plane perpendicular to its moving direction, as shown in FIG. Fig.10 and Fig.11 As shown, after the external equipment drives the surface processing device to move downward so that the processing tool 200 contacts the end face 301 of the tool 300, the columnar component 100 can correct the processing tool 200 from an inclined state to a state consistent with the end face 301 of the workpiece by swinging. In this way, when the processing tool 200 processes the end face 301 of the workpiece, the end face 301 will not have the defect of multiple slopes as described in the background technology.

[0055] The damping mechanism 50 is used to provide resistance to the swing of the column component 100 around the pivot center O.

[0056] The function of the damping mechanism 50 should be understood as follows: without the damping mechanism 50, when the processing tool 200 contacts the end face 301 of the workpiece, the processing tool 200 will move laterally on a plane perpendicular to the linear motion, and the contact between the processing tool 200 and the end face 301 will be unstable, which will cause the processing process of the end face 301 to be unstable, that is, without the damping mechanism 50, the columnar component 100 will cause the processing tool 200 to be in an unstable free state.

[0057] By adding the damping mechanism 50, an impedance can be applied to the columnar component 100 to limit the swing of the columnar component 100, so that a certain rigidity is formed between the columnar component 100 and the retaining seat 10. This can not only limit the lateral movement of the processing tool 200 during reciprocating linear motion to a certain extent, but also enable the processing tool 200 to always maintain stable contact with the end face 301 of the workpiece during the entire processing process.

[0058] The damping mechanism 50 may provide impedance in various ways. For example, the damping mechanism 50 is configured to directly apply a force to the columnar component 100 to resist the swinging of the columnar component 100 around the pivot center O.

[0059] There may be various types of force provided by the damping mechanism 50 . For example, the damping mechanism 50 is configured to apply force to the columnar component 100 using a spring. At this time, the force resisting the swing of the columnar component 100 is provided by the elastic force of the spring.

[0060] However, when the spring is used to provide impedance for the columnar component 100 (or when the spring is used to apply force to the columnar component 100), the force of the spring on the columnar component 100 cannot be adjusted (unless the spring is replaced or the compression amount of the spring is changed), so the impedance provided for the columnar component 100 cannot be adjusted, and the stiffness between the columnar component 100 and the retaining seat 10 cannot be adjusted.

[0061] In some embodiments:

[0062] like Figure 3 , 5 6, the surface processing device further includes a ring body 20 and a sleeve body 40. The ring body 20 is arranged in the mounting hole of the retaining seat 10 and sleeved outside the columnar component 100, the pin 30 extends from the outside of the retaining seat 10 into the ring body 20, a gasket 32 ​​is arranged between the retaining seat 10 and the tail of the pin 30, a copper sleeve 31 is arranged between the head of the pin 30 and the ring body 20, and the pin 30 is threadedly connected with the retaining seat 10 to limit the pin 30 from coming out of the retaining seat 10.

[0063] like Figure 3 and Figure 6 As shown, the sleeve 40 is wrapped around the columnar component 100, and an arc-shaped notch is opened circumferentially at the lower end of the sleeve 40, and 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 so as to tightly wrap the columnar component 100 by screwing the bolts, thereby forming a fixed connection between the sleeve 40 and the columnar component 100.

[0064] like Figures 6 to 8 As shown, a step surface 43 is formed in the middle of the sleeve body 40, and the ring body 20 is sleeved on the sleeve body 40 above the step surface 43; a shaft retaining ring 41 is installed on the upper end of the sleeve body 40, and the shaft retaining ring 41 overlaps the upper end of the ring body 20. Specifically, as shown in FIG. Figure 8 As shown, an annular groove is provided at the upper and lower ends of the inner hole of the ring body 20, and a shock absorbing ring 21 is provided in the annular groove, and a shaft retaining ring 41 is overlapped on the shock absorbing ring 21 located above. In this way, the ring body 20, the sleeve body 40 and the columnar component 100 can swing synchronously, and because the sleeve body 40 is overlapped on the shock absorbing ring 21 by the shaft retaining ring 41, the sleeve body 40 can generate a slight floating relative to the ring body 20, and because of the existence of the shock absorbing ring 21, it can effectively avoid the sleeve body 40 from having a serious impact with the ring body 20 when performing a slight floating.

[0065] In the above embodiments, the damping mechanism 50 is used to apply force to the upper end of the ring body 20 located on both sides of the pivot center O to provide impedance.

[0066] In the above embodiments, the damping mechanism 50 may be configured as follows:

[0067] like Figure 3 , 610, the damping mechanism 50 includes a guide cavity and a force-applying column. The guide cavity includes two pairs of first guide cavities 51 opened in the retaining seat 10, the two pairs of first guide cavities 51 are respectively located on both sides of the pivot center O and are symmetrically arranged, and are opposite to the upper end of the ring body 20; the force-applying column includes two pairs of first force-applying columns 53 respectively arranged in the two pairs of first guide cavities 51; the two pairs of first force-applying columns 53 apply force to the upper end of the ring body 20 by the pressure gas entering the first guide cavity 51.

[0068] The advantages of the above embodiment are:

[0069] 1. The pressure of the pressurized gas is easy to adjust, so that the force applied by the first force-applying column to the ring body 20 can be easily adjusted, thereby adjusting the stiffness between the columnar component 100 and the retaining seat 10 (while using a spring as a force-applying component cannot adjust the stiffness between the columnar component 100 and the retaining seat 10).

[0070] 2. The sleeve 40 can slightly float relative to the ring 20 to cushion the vibration or impact of the processing tool 200 transmitted to the ring 20 through the sleeve 40 .

[0071] 3. The fixed connection between the sleeve 40 and the columnar component 100 can be achieved by the cooperation between the arc-shaped notch and the arc-shaped locking strip 42 (at the same time, the inner hole of the sleeve 40 and the columnar component 100 form a clearance fit), and the columnar component 100 can be removed from the sleeve 40 by loosening the fastener, thereby improving the assemblability of the device.

[0072] In some embodiments, the guide cavity also includes two second guide cavities 52 opened in the retaining seat 10 and respectively located between each pair of first guide cavities 51; the force column also includes two second force columns 54 respectively arranged in the two second guide cavities 52, and the two second force columns 54 are used to apply force to the upper end of the ring body 20; wherein: a conical surface 541 is formed in the middle portion of the second force column 54; the surface processing device also includes two distance detectors 80, and the two distance detectors 80 extend radially from the outside of the retaining seat 10 into the two second guide cavities 52 respectively, so as to obtain the axial displacement of the second force column by detecting the distance change between the distance detector 80 and the circumferential surface of the second force column 54.

[0073] It should be explained that: it is easy to understand that when the second force-applying column 54 is in different axial positions, the distance detector 80 will obtain different detection results, and the specific axial position of the second force-applying column 54 can be calculated based on these detection results. Since the lower end of the second force-applying column 54 is always in contact with the ring body 20, the posture of the ring body 20, the columnar component 100 and the processing tool 200 can be obtained, that is, the inclination angle perpendicular to the movement direction of the processing tool 200.

[0074] It should be noted that: since the columnar component 100 and the retaining seat 10 are in a pivoted state, in the initial state before the processing tool 200 processes the end face 301 of the workpiece, the inclination of the columnar component 100 may cause the processing tool 200 to have a larger inclination angle relative to the end face 301 of the workpiece. Although, when the processing tool 200 is brought into contact with the end face 301 of the workpiece with a certain contact force, this inclination state can be eliminated so that the processing tool 200 is consistent with the end face 301. However, since the columnar component 100 has a certain rigidity relative to the retaining seat 10, the columnar component 100 always has a tendency to return to the inclined state during the entire processing process. This tendency causes the contact force between the processing tool 200 and the end face 301 of the workpiece in a direction perpendicular to the linear motion to be uneven. Moreover, before processing the workpiece, the greater the inclination angle of the processing tool 200, the more uneven the contact force between the processing tool 200 and the end face 301 of the workpiece during processing, which is bound to affect the processing quality.

[0075] The above-mentioned detection of the axial position of the second force-applying cylinder 54 by the distance detector 80 is used to adjust the inclination angle of the processing tool 200 before processing the workpiece, so as to minimize the inclination angle. According to the above, when the distance detector 80 detects that the inclination angle of the columnar component 100 is too large through calculation, the axial position of the corresponding second force-applying cylinder 54 can be adjusted by increasing or reducing the pressure in one of the second guide cavities 52, thereby reducing the inclination angle of the columnar component 100, so that the processing tool 200 will not form a large inclination angle with the end face 301 of the workpiece before processing the workpiece, which is conducive to reducing the unevenness of the contact force during the processing, and thus is conducive to improving the processing quality.

[0076] As can be seen from the above, the second guide cavity 52 , the second force-applying cylinder 54 and the distance detector 80 are added to minimize the inclination angle between the processing tool 200 and the processing plane before the processing tool 200 processes the end surface 301 of the workpiece.

[0077] In some embodiments, two sleeve retaining rings 72 are arranged on the mounting hole of the retaining seat 10, and the surface processing device further includes a sealing ring 70, and a circle of bristles 71 are arranged on the inner wall of the sealing ring 70, and the sealing ring 70 is interposed between the two shaft retaining rings 41, so that the bristles 71 block the gap between the mounting hole and the columnar component 100. The sealing ring 70 is used to prevent dust from passing through.

[0078] In some embodiments, the damping mechanism 50 further includes a cover 57, which is buckled on the retaining seat 10 to block the first guide cavity 51 and the second guide cavity 52; wherein: the cover 57 is provided with a first air inlet interface 581 corresponding to the first guide cavity 51 and a second air inlet interface 582 corresponding to the second guide cavity 52. ​​In this way, each first guide cavity 51 can provide pressurized gas through a corresponding air pipe connected to each first air inlet interface 581, and each second guide cavity 52 can provide pressurized gas through a corresponding air pipe connected to each second air inlet interface 582. Preferably, a sealing ring 56 is provided between the outer sides of the first guide cavity 51 and the second guide cavity 52 and the cover 57.

[0079] In some embodiments, a first sealing sleeve 61 is disposed between the upper end of the retaining seat 10 and the columnar component 100, and a second sealing sleeve 62 is disposed between the lower end of the sleeve body 40 and the columnar component 100, and the two sealing sleeves are used to limit external dust from entering the mounting hole. .

[0080] In some embodiments, a bushing 55 is provided between the first guide cavity 51 and the first force column 53 and between the second guide cavity 52 and the second force column 54, so that the wear resistance of the bushing 55 is configured to be lower than that of the force column so that the air leakage problem between the bushing 55 and the force column caused by wear can be solved by replacing the bushing 55.

[0081] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and their examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0082] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0083] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A surface processing device, characterized in that: include: A retaining seat, which is used to be connected to an external device and driven by the external device to perform linear motion; the retaining seat is provided with a vertically penetrating mounting hole; A columnar component, through which the mounting hole is formed, and a processing tool for processing the end surface of the workpiece is installed at the lower end of the columnar component; the columnar component is pivotally connected to the retaining seat by a pin shaft, so that the columnar component has a pivot center that is consistent with the linear motion direction of the retaining seat, and the columnar component drives the processing tool to swing around the pivot center in a direction perpendicular to the linear motion; a damping mechanism, which is at least used to provide impedance for the columnar member to resist the swing of the columnar member around the pivot center; The surface processing device also includes: A ring body, which is arranged in the mounting hole and sleeved outside the columnar component, the pin shaft passes through the retaining seat from outside the retaining seat and extends into the ring body, and the damping mechanism is used to apply force to the ring body on both sides of the pivot center; A sleeve body, which is covered outside the columnar component and fixedly connected to the columnar component; wherein: The sleeve is connected to the ring so that the damping mechanism can provide resistance to the swing of the columnar component through the sleeve by applying force to the ring; The damping mechanism comprises: A guide cavity, comprising two pairs of first guide cavities opened in the retaining seat, the two pairs of first guide cavities are respectively located on both sides of the pivot center and are symmetrically arranged, and are opposite to the upper end of the ring body; A force-applying column, comprising two pairs of first force-applying columns respectively disposed in two pairs of the first guide cavities; The two pairs of the first force-applying columns apply force to the upper end of the ring body by means of pressurized gas entering the first guide cavity; The guide cavity further comprises two second guide cavities opened in the retaining seat and respectively located between each pair of the first guide cavities; The force-applying column further includes two second force-applying columns respectively disposed in the two second guide cavities, and the two second force-applying columns are used to apply force to the upper end of the ring body; wherein: A conical surface is formed in the middle of the second force-applying cylinder; The surface processing device also includes two distance detectors, which radially extend from the outer side of the retaining seat into the two second guide cavities respectively, so as to obtain the axial displacement of the second force column by detecting the distance change between the distance detector and the peripheral surface of the second force column.

2. The surface processing device according to claim 1, characterized in that: A step surface is formed in the middle of the sleeve body, and the ring body is sleeved on the sleeve body above the step surface; wherein: A shaft retaining ring is arranged on the upper end of the sleeve body, and the shaft retaining ring is overlapped on the upper end of the ring body.

3. The surface processing device according to claim 2, characterized in that: The upper and lower ends of the inner hole of the ring body are both provided with an annular groove, and a shock absorbing ring is arranged in the annular groove, wherein: The shaft is overlapped with the shock absorbing ring located above by a retaining ring.

4. The surface processing device according to claim 1, characterized in that: Two sleeve retaining rings are arranged on the mounting hole of the retaining seat, and the surface processing device also includes a sealing ring, and a circle of bristles are arranged on the inner wall of the sealing ring. The sealing ring is located between the two sleeve retaining rings so that the bristles can block the gap between the mounting hole and the columnar component.

5. The surface processing device according to claim 1, characterized in that: The damping mechanism further includes a cover, which is buckled on the retaining seat to block the first guide cavity and the second guide cavity; wherein: The cover is provided with a first air inlet interface corresponding to the first guide cavity one by one, and a second air inlet interface corresponding to the second guide cavity one by one.

6. The surface processing device according to claim 1, characterized in that: An arc-shaped notch is opened circumferentially at the lower end of the sleeve, and an arc-shaped locking strip is arranged at the arc-shaped notch. The arc-shaped locking strip is connected to the sleeve by bolts so as to tightly cover the columnar component by screwing the bolts.

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