Bracket polishing clamping tooling and bracket polishing fixture

Abstract

The utility model belongs to the technical field of metal bracket polishing, and specifically relates to a bracket polishing clamping tool and a bracket polishing jig. The bracket polishing clamping tool is used to be at least partially placed in an electrolyte, and includes: a support; a rotating shaft, which is arranged on the support and is used to hang the bracket; a transmission assembly, which is used to drive the rotating shaft to rotate to change the contact position between the rotating shaft and the bracket. During the polishing process of the bracket polishing clamping tool and the bracket polishing jig of the utility model, the rotating shaft can rotate, and the bracket can continuously change its contact position with the rotating shaft in combination with the bracket's own gravity, the resistance of the polishing liquid, the friction between the rotating shaft and the bracket, etc., to achieve dynamic contact between the tool and the bracket, ensure that each position of the bracket can contact the polishing liquid, and generate an electrochemical reaction, so as to achieve uniform size and bright surface at each position of the metal bracket surface after polishing, and achieve a mirror effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal bracket polishing, and in particular relates to a bracket polishing clamping tool and a bracket polishing fixture. Background Art

[0002] The vascular stents used in the medical field are generally divided into coronary stents, renal artery stents, cerebrovascular stents, and aortic stents. Metal stents made by laser engraving technology account for a large proportion of them. After laser cutting or heat treatment, the metal stents will have defects such as pits, scratches, burrs and oxide layers on the surface. If they are not treated and directly implanted into the human body, it will cause platelet adhesion in the blood vessels, easily forming thrombosis and intimal hyperplasia, or it will easily scratch the blood vessels when mechanically removing thrombus through intracranial thrombectomy stent.

[0003] Patent CN113481584A provides a metal bracket polishing device and process, which can directly perform electrolytic polishing on the metal bracket without mechanical polishing, saving time and having high polishing efficiency. However, in the prior art, the clamping part of the clamping tool and the contact position of the bracket are fixed and unchanged, and the contact position of the clamping part and the bracket is isolated from the electrolyte, so the electrochemical reaction cannot be formed, and the surface close to the clamping position is very prone to corrosion, severe oxidation, and even blackening. Utility Model Content

[0004] The utility model aims to provide a bracket polishing clamping tool and a bracket polishing jig to solve the technical problem in the prior art that the clamping part of the clamping tool and the bracket contact position are fixed, resulting in the bracket isolating the electrolyte at this position and the electrochemical reaction cannot be formed.

[0005] The present application provides a bracket polishing clamping tool. The bracket polishing clamping tool is used to be at least partially placed in an electrolyte, and includes:

[0006] Support;

[0007] A rotating shaft is arranged on the support and used for hanging the bracket;

[0008] The transmission assembly is used to drive the rotating shaft to rotate so as to change the contact position between the rotating shaft and the bracket.

[0009] In one embodiment of the present application, one end of the rotating shaft is mounted on a support, and a gap is provided between the other end and the support;

[0010] The gap is used for the bracket to pass through so as to be hung on the rotating shaft.

[0011] In one embodiment of the present application, both ends of the rotating shaft are detachably connected to the support; or

[0012] One end of the rotating shaft is rotatably connected to the support, and the other end is detachably connected to the support.

[0013] In one embodiment of the present application, a transmission shaft and a clamping shaft are relatively arranged on the support, and the transmission shaft and the clamping shaft are both rotatably matched with the support;

[0014] One end of the transmission shaft is connected to the transmission assembly, and the other end is rotatably connected to one end of the rotating shaft;

[0015] One end of the clamping shaft is rotatably matched with the support, and the other end is provided with a clamping groove for clamping with the other end of the rotating shaft.

[0016] Accordingly, the present application provides a stent polishing jig, comprising: an electrolytic cell for placing the stent polishing clamping tooling as described above.

[0017] In one embodiment of the present application, the bracket polishing fixture further includes a driving device for driving a transmission assembly of the bracket polishing clamping tooling.

[0018] In one embodiment of the present application, the stent polishing jig further includes a moving device;

[0019] The driving device comprises a driving member;

[0020] The moving device is used to move the driving member until it is connected to the transmission assembly.

[0021] In one embodiment of the present application, the transmission assembly includes a driving gear rotatably disposed on a support, a plurality of transmission gears, and a shaft gear connected to a rotating shaft;

[0022] The moving device is used to move the driving member to be connected with the driving gear.

[0023] In one embodiment of the present application, the driving member is a driving shaft;

[0024] One end of the driving gear is mounted on the support, and the other end is provided with a docking groove;

[0025] The moving device is used to move the driving shaft until the end of the driving shaft is inserted into the docking groove.

[0026] In one embodiment of the present application, an insulating layer is provided at the end of the driving shaft and / or in the docking groove.

[0027] The beneficial effects of the utility model are:

[0028] During the polishing process of the bracket polishing clamping tool and the bracket polishing fixture of the utility model, the rotating shaft can rotate. Combined with the bracket's own gravity, the resistance of the polishing liquid, the friction between the rotating shaft and the bracket, etc., the bracket can continuously change its contact position with the rotating shaft, thereby realizing dynamic contact between the tool and the bracket, ensuring that each position of the bracket can contact the polishing liquid, causing an electrochemical reaction, and achieving uniform size and bright surface at each position of the metal bracket after polishing, achieving a mirror effect.

[0029] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a three-dimensional diagram of a bracket polishing clamping tooling of a preferred embodiment of the utility model;

[0033] Figure 2 It is a side view of a bracket polishing clamping tooling of a preferred embodiment of the utility model;

[0034] Figure 3 It is a side view of a bracket polishing clamping tooling of another preferred embodiment of the utility model;

[0035] Figure 4 It is a three-dimensional diagram of a bracket polishing jig of a preferred embodiment of the utility model;

[0036] Figure 5 It is a schematic diagram of the docking between the driving member and the driving gear of a preferred embodiment of the utility model.

[0037] In the figure:

[0038] Bracket 100, bracket polishing clamping tool 200;

[0039] Support 1, transmission shaft 11, clamping shaft 12, clamping groove 121, rotating shaft 2, transmission assembly 3, driving gear 31, docking groove 311, shaft gear 32, gap 4, electrolytic cell 5, driving device 6, driving member 61, insulating layer 611, moving device 7. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] In the prior art, when a metal bracket is electropolished, the contact position between the clamping part of the clamping tool and the bracket is fixed. Since the electrolyte is isolated from the clamping part and the bracket contact position, an electrochemical reaction cannot be formed, and the surface close to the clamping position is prone to corrosion, severe oxidation, and even blackening.

[0042] In order to solve the existing technical problems, the present application provides a bracket polishing clamping tool and a bracket polishing jig, which are described in detail below. It should be noted that the description order of the following embodiments is not used as a limitation on the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For the parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0043] See also Figure 1 The first aspect of the utility model provides a bracket polishing clamping tool for being at least partially placed in an electrolyte, which includes: a support 1; a rotating shaft 2, which is arranged on the support 1 and is used to hang the bracket 100; a transmission assembly 3, which is used to drive the rotating shaft 2 to rotate so as to change the contact position between the bracket 100 and the rotating shaft 2.

[0044] In this embodiment, during electrolytic polishing, the rotating shaft 2 can rotate, so that the bracket 100 can continuously change its contact position with the rotating shaft 2 due to its own gravity, polishing liquid resistance, friction between it and the rotating shaft 2, etc., thereby realizing dynamic contact between the tooling and the bracket, and ensuring that all positions of the bracket can contact the polishing liquid.

[0045] In this embodiment, it can be understood that the rotating shaft 2 needs to have a certain friction coefficient, so that the bracket 100 and the rotating shaft 2 can keep the contact position of the bracket 100 and the rotating shaft 2 relatively static due to the friction between them. After the rotating shaft 2 rotates a certain angle, the contact position of the bracket 100 and the rotating shaft 2 changes due to the gravity of the bracket 100, and another part of the bracket 100 contacts the rotating shaft 2, that is, the contact position of the bracket 100 and the rotating shaft 2 is changed. As the rotating shaft 2 keeps rotating, the contact position of the bracket 100 and the rotating shaft 2 is constantly changed, so that each position of the bracket can contact the polishing liquid for electrolytic polishing.

[0046] In this embodiment, at least part of the bracket 100 has an annular structure, so that the rotating shaft 2 can pass through the annular structure, that is, the bracket 100 is hung on the rotating shaft 2; the annular structure can be a closed ring or a non-closed gap. The non-closed gap should not be too large, which will cause the bracket 100 to be unable to be hung on the rotating shaft 2.

[0047] In this embodiment, the above-mentioned clamping method for the bracket 100 can adapt to brackets 100 of various sizes.

[0048] In this embodiment, the cross-section of the rotating shaft 2 can be circular, but it should be able to provide a sufficient friction coefficient; it can also be non-circular, such as a triangle, quadrilateral or other polygon, a circle segment, an irregular shape, etc., so that the contact point between the bracket 100 and the rotating shaft 2 will change with the rotation of the rotating shaft 2.

[0049] See also Figure 2 As an optional implementation of hanging the bracket 100, one end of the rotating shaft 2 is installed on the support 1, and a gap 4 is set between the other end and the support 1; the gap 4 is used for the bracket 100 to pass through and hang on the rotating shaft 2.

[0050] Optionally, one end of the rotating shaft 2 may be rotatably disposed on the support 1 via a bearing and cooperate with the transmission assembly 3 .

[0051] In some embodiments, as an optional implementation of hanging the bracket 100, the two ends of the shaft 2 are detachably connected to the support 1; that is, the support 1 can be provided with two detachable components, the bracket 100 is first hung on the shaft 2, and then the two ends of the shaft 2 are installed on the corresponding detachable components on the support 1, and the detachable components can cooperate with the transmission component 3; or

[0052] One end of the rotating shaft 2 is rotatably connected to the support 1, and the other end is detachably connected to the support 1; that is, the support 1 can be provided with a detachable component, the bracket 100 is first hung on the rotating shaft 2, and then the movable end of the rotating shaft 2 is installed on the detachable component on the support 1.

[0053] For details, see Figure 1and Figure 3 As an optional embodiment of the hanging bracket 100, a transmission shaft 11 and a clamping shaft 12 are relatively arranged on the support 1, and the transmission shaft 11 and the clamping shaft 12 are both rotatably matched with the support 1; one end of the transmission shaft 11 is connected to the transmission assembly 3, and the other end is rotatably connected to one end of the rotating shaft 2; one end of the clamping shaft 12 is rotatably matched with the support 1, and the other end is provided with a clamping groove 121 for clamping with the other end of the rotating shaft 2.

[0054] In this embodiment, optionally, the rotational connection between the other end of the transmission shaft 11 and one end of the rotating shaft 2 can be achieved through a hinged connection, or through the cooperation of a round head and a circular groove; the slot 121 can be an interference fit with the other end of the rotating shaft 2, so that the other end of the rotating shaft 2 can be fixed after being inserted into the slot 121.

[0055] In this embodiment, the support 1, the rotating shaft 2 and other components may be made of metal; the support 1 may be provided with a portion electrically connected to the electrode.

[0056] In this embodiment, the transmission assembly 3 can be a gear assembly, a synchronous wheel and synchronous belt assembly, a sprocket and transmission chain assembly, etc.

[0057] For example, in some embodiments, the transmission assembly 3 may include a driving gear 31 and a shaft gear 32. The driving gear 31 may be mounted on the support 1 via a bearing; the shaft gear 32 may be mounted on the rotating shaft 2, or on a detachable assembly or a transmission shaft 11, so that the driving gear 31 drives the shaft gear 32, and the shaft gear 32 may drive the rotating shaft 2 to rotate; the driving gear 31 and the shaft gear 32 may be directly meshed or may be transmitted through other gears.

[0058] See also Figure 4 On the basis of the above-mentioned embodiment, the second aspect of the embodiment of the present utility model provides a stent polishing fixture, comprising: an electrolytic cell 5 for placing the stent polishing clamping tool 200 as described above.

[0059] In this embodiment, electrolyte can be poured into the electrolytic cell 5, and then the bracket polishing clamping tool 200 equipped with the bracket 100 is placed in the electrolytic cell 5 as a whole, so that the bracket 100 can be immersed in the electrolyte for electrolysis; a positioning pin can be provided at the bottom of the electrolytic cell 5, and a pin hole that cooperates with the positioning pin can be provided at the bottom of the support 1.

[0060] In this embodiment, preferably, the bracket polishing fixture further includes a driving device 6 for driving the transmission assembly 3 of the bracket polishing clamping tool 200 .

[0061] Optionally, the driving device 6 can be a rotating driving device such as a motor, or a manual driving device such as a handwheel; the driving device 6 can drive the rotating shaft 2 to rotate through the transmission assembly 3; in this embodiment, the driving device 6 can also drive the rotating shaft 2 to rotate at a variable speed, further allowing each position of the metal bracket to fully contact the polishing liquid.

[0062] Preferably, the bracket polishing jig is characterized in that it further includes a moving device 7; the driving device 6 includes a driving member 61; and the moving device 7 is used to move the driving member 61 to connect with the transmission assembly 3.

[0063] Optionally, the driving device 6 can be installed on the moving device 7, and the moving device 7 can drive the driving device 6 to move; the driving device 6 can cooperate with the transmission assembly 3 through the driving member 61, and the driving member 61 can be a driving shaft, a driving gear, etc.

[0064] Optionally, the moving device 7 may be, but is not limited to, a cylinder or a push rod motor.

[0065] In an application scenario, after the bracket polishing clamping tool 200 equipped with the bracket 100 is placed as a whole into the electrolytic cell 5, the moving device 7 moves the driving member 61 to connect with the transmission assembly 3, and then the driving device 6 works to drive the rotating shaft 2 to rotate through the transmission assembly 3.

[0066] Optional, see Figure 4 The transmission assembly 3 includes a driving gear 31 rotatably arranged on the support 1 and a shaft gear 32 connected to the rotating shaft 2, and the driving gear 31 and the shaft gear 32 are connected; the moving device 7 is used to move the driving member 61 to connect with the driving gear 31.

[0067] In this embodiment, optionally, the driving gear 31 and the shaft gear 32 may be directly meshed or connected via a plurality of intermediate transmission gears.

[0068] In this embodiment, optionally, the driving member 61 may be a gear mounted on the driving device 6 , which may be engaged with the driving gear 31 under the drive of the moving device 7 .

[0069] See also Figure 5 As another preferred embodiment of the driving member 61, the driving member 61 is a driving shaft; one end of the driving gear 31 is installed on the support 1, and the other end is provided with a docking groove 311; the moving device 7 is used to move the driving shaft until the end of the driving shaft is inserted into the docking groove 311.

[0070] Optionally, the docking groove 311 may be polygonal, such as hexagonal; the end cross-section of the driving shaft may be adapted to the shape of the docking groove 311, so that the driving gear 31 may be driven to rotate by the driving shaft.

[0071] In this embodiment, an insulating layer 611 is provided at the end of the driving shaft and / or in the docking groove 311 .

[0072] Optionally, the insulating layer 611 may be a silicone sleeve disposed at the end of the driving shaft.

[0073] To sum up, the bracket polishing clamping tool and bracket polishing fixture of the utility model can ensure that each position of the metal bracket is fully in contact with the polishing liquid, so that each position of the metal bracket can achieve a bright surface effect; at the same time, according to the size and shape of different brackets, the size and shape of the rotating shaft are changed to achieve simultaneous polishing of different brackets and multiple brackets.

[0074] It should be noted that the various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0075] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0076] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0077] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A bracket polishing clamping tool for being at least partially placed in an electrolyte, characterized in that: include: Support (1); A rotating shaft (2) is arranged on the support (1) and is used for hanging the bracket (100); The transmission assembly (3) is used to drive the rotating shaft (2) to rotate so as to change the contact position between the bracket (100) and the rotating shaft (2).

2. The bracket polishing clamping tool according to claim 1, characterized in that: One end of the rotating shaft (2) is mounted on the support (1), and a gap (4) is provided between the other end and the support (1); The gap (4) is used for the bracket (100) to pass through so as to be hung on the rotating shaft (2).

3. The bracket polishing clamping tool according to claim 1, characterized in that: The two ends of the rotating shaft (2) are detachably connected to the support (1); or One end of the rotating shaft (2) is rotatably connected to the support (1), and the other end is detachably connected to the support (1).

4. The bracket polishing clamping tool according to claim 1, characterized in that: A transmission shaft (11) and a clamping shaft (12) are arranged on the support (1) in a relative manner, and the transmission shaft (11) and the clamping shaft (12) are both rotatably matched with the support (1); One end of the transmission shaft (11) is connected to the transmission assembly (3), and the other end is rotatably connected to one end of the rotating shaft (2); One end of the clamping shaft (12) is rotatably matched with the support (1), and the other end is provided with a clamping groove (121) for clamping with the other end of the rotating shaft (2).

5. A bracket polishing jig, characterized in that: include: An electrolytic cell (5) for placing the support polishing clamping tool as described in any one of claims 1 to 4.

6. The stent polishing jig according to claim 5, characterized in that: It also includes a driving device (6) for driving a transmission assembly (3) of a bracket polishing clamping tool.

7. The stent polishing jig according to claim 6, characterized in that: Also includes a moving device (7); The driving device (6) comprises a driving member (61); The moving device (7) is used to move the driving member (61) to connect with the transmission assembly (3).

8. The stent polishing jig according to claim 7, characterized in that: The transmission assembly (3) comprises a driving gear (31) rotatably arranged on the support (1) and a shaft gear (32) connected to the rotating shaft (2), wherein the driving gear (31) and the shaft gear (32) are connected; The moving device (7) is used to move the driving member (61) to connect with the driving gear (31).

9. The stent polishing jig according to claim 8, characterized in that: The driving member (61) is a driving shaft; One end of the driving gear (31) is mounted on the support (1), and the other end is provided with a docking groove (311); The moving device (7) is used to move the driving shaft until the end of the driving shaft is inserted into the docking groove (311).

10. The stent polishing jig according to claim 9, characterized in that: An insulating layer (611) is provided at the end of the driving shaft and / or in the docking groove (311).

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