Device for chamfering end face of guide wire

Abstract

The utility model provides a guide wire end face chamfering device, and relates to the technical field of medical instrument chamfering equipment, the guide wire end face chamfering device comprises a bottom plate, a carbon brush seat, a driving mechanism and a clamping mechanism, the carbon brush seat, the driving mechanism and the clamping mechanism are arranged on the bottom plate, a rotating shaft is arranged on the carbon brush seat, the output end of the driving mechanism is connected with the rotating shaft, and a conductive adapter plate is arranged on the rotating shaft; a micro motor is arranged on the conductive adapter plate, a grinding wheel is arranged at the output end of the micro motor, the clamping mechanism clamps a guide wire, the chamfering end of the guide wire extends out of the clamping mechanism to be attached to the grinding face of the grinding wheel, the extending direction of the chamfering end of the guide wire is coaxial with the axis of the rotating shaft, and the driving mechanism drives the rotating shaft to rotate. And meanwhile, the micro motor drives the grinding wheel to rotate, so that uniform chamfering of the guide wire is realized.

Description

Technical Field

[0001] This application relates to the technical field of medical device chamfering equipment, and particularly to a device for chamfering the end face of a guide wire. Background Art

[0002] Guide wire chamfering refers to chamfering the end or specific part of a guide wire to form an inclined or arc-shaped edge. The purposes of chamfering include improving safety, improving assembly performance, and increasing the aesthetics of the product, etc.

[0003] In the medical field, guide wire chamfering is commonly used in the manufacture of medical devices, such as guide wires used in vascular intervention surgeries. Chamfering can reduce the damage to the blood vessel wall during the insertion of the guide wire, and improve the safety and success rate of the surgery.

[0004] The existing guide wire chamfering devices are relatively complex in operation, have low chamfering efficiency, and moreover, the chamfering is not uniform enough. For this reason, a device for chamfering the end face of a guide wire is specifically proposed. Utility Model Content

[0005] The embodiment of this application provides a device for chamfering the end face of a guide wire. By driving the rotation of a rotating shaft through a driving mechanism, the grinding wheel revolves around the chamfered end of the guide wire. At the same time, a micro motor drives the grinding wheel to rotate, so as to realize uniform chamfering of the guide wire. This guide wire end face chamfering device is simple in operation, convenient to use, has uniform chamfering, and high chamfering efficiency, solving the problems that the existing guide wire chamfering devices are relatively complex in operation, have low chamfering efficiency, and moreover, the chamfering is not uniform enough.

[0006] The embodiment of this application provides a device for chamfering the end face of a guide wire, including a base plate, and a carbon brush holder, a driving mechanism, and a clamping mechanism arranged on the base plate;

[0007] A rotating shaft is arranged on the carbon brush holder. The output end of the driving mechanism is connected to the first end of the rotating shaft. A conductive adapter plate is arranged at the second end of the rotating shaft. A micro motor is arranged on the conductive adapter plate. The output end of the micro motor is provided with a grinding wheel. The axis of the rotating shaft passes through the grinding surface of the grinding wheel and forms a certain angle with the grinding surface of the grinding wheel;

[0008] The clamping mechanism clamps the guide wire. The chamfered end of the guide wire extends out of the clamping mechanism and fits the grinding surface of the grinding wheel, and the extending direction of the chamfered end of the guide wire is coaxial with the axis of the rotating shaft;

[0009] The carbon brush holder, the conductive adapter plate, and the micro motor are electrically connected in sequence. The grinding wheel rotates around the chamfered end of the guide wire while rotating itself.

[0010] In a feasible implementation manner, the clamping mechanism includes a quick clamp seat, a pull rod, a clamping plate, a spring, a quick clamp head, and a guide rod;

[0011] The quick clamping seat includes a longitudinal plate and a connecting plate. Through holes and feeding holes are respectively provided in the upper and middle parts of the longitudinal plate. Two connecting plates are arranged in parallel at the upper and lower parts of the longitudinal plate facing the grinding wheel side. Trapezoidal through grooves are provided in the middle parts of the two connecting plates. Guide inclined grooves are relatively provided on both sides of the two connecting plates. The extending direction of the guide inclined groove is parallel to the inner wall of the adjacent inclined surface of the trapezoidal through groove;

[0012] The quick clamping head includes a main body, a semi-cone, an ear plate and a clamping block. The main body has opposite first plane and inclined surface. The semi-cone has a second plane and a conical surface. The semi-cone is located at the first end of the main body, and the first plane and the second plane are in the same plane, forming a clamping surface. A clamping groove is provided on the clamping surface. The clamping groove starts from the conical end of the semi-cone and ends at the second end of the main body;

[0013] The main bodies of the two quick clamping heads are relatively arranged in the trapezoidal through groove. The clamping grooves of the two quick clamping heads and the feeding hole are in the same plane. The two clamping grooves clamp the guide wire. The semi-cones of the two quick clamping heads form a cone. The chamfered end of the guide wire penetrates through the cone. The inclined surfaces of the two quick clamping heads are slidably connected with the inner walls of the inclined surfaces of the trapezoidal through groove;

[0014] The ear plate is arranged on the inclined surface of the main body and is inserted between the two connecting plates. Two guide rods are respectively arranged on the ear plates of the two quick clamping heads. The outer wall of the guide rod is slidably connected with the inner wall of the guide inclined groove;

[0015] The clamping block is located at the upper part of the main body. The pull rod penetrates through the through hole. The clamping plate is fixed at the first end of the pull rod. The second side outer wall of the clamping plate is clamped with the first side outer walls of the two clamping blocks;

[0016] The spring sleeves the pull rod. The two ends of the spring respectively abut against the first side outer wall of the longitudinal plate and the second side outer walls of the two clamping blocks.

[0017] In a feasible implementation manner, an avoidance groove matching the ear plate is provided on the connecting plate. The avoidance groove is communicated with the guide inclined groove;

[0018] The ear plate passes through the avoidance groove and is inserted between the two connecting plates.

[0019] In a feasible implementation manner, a connecting hole is provided on the ear plate. The guide rod is inserted into the connecting hole;

[0020] The clamping mechanism further includes cover plates, two of the cover plates are respectively arranged on the outer walls of the two connecting plates, and two ends of the guiding rod respectively abut against the opposite surfaces of the two cover plates.

[0021] In a feasible implementation manner, the cover plate and the connecting plate are respectively provided with a first bolt hole and a second bolt hole, and a bolt penetrates through the first bolt hole and the second bolt hole so that the cover plate is fixed on the quick-clamping seat.

[0022] In a feasible implementation manner, the clamping mechanism further includes a slide rail, a rotating plate, a positioning plate, a tension spring and a blocking block;

[0023] The quick-clamping seat further includes a transverse plate, the transverse plate is located at the second end of the longitudinal plate, and the transverse plate is fixed on the slider of the slide rail;

[0024] The rotating plate includes an arcuate plate and rotating plates arranged at both ends of the arcuate plate. The bottom ends of the two rotating plates are respectively rotatably arranged on both sides of the longitudinal plate. Two ends of the tension spring are respectively arranged on the outer wall of the transverse plate and the top end of the rotating plate; the positioning plate is fixed on the arcuate plate, and the positioning plate is clamped with the cover plate;

[0025] The blocking block is arranged on the bottom plate, and the rotating plate is slidably connected with the blocking block.

[0026] In a feasible implementation manner, the clamping mechanism further includes a handle seat, a handle and a connecting rod;

[0027] The handle seat is fixed on the bottom plate, the middle part of the handle is rotatably connected with the handle seat, the end part of the handle is hinged with the first end of the connecting rod, and the second end of the connecting rod is hinged with the second end of the pull rod.

[0028] In a feasible implementation manner, the clamping mechanism further includes a positioning block and a limit screw;

[0029] The positioning block is fixed on the transverse plate, the blocking block is provided with an adjusting screw hole, and the limit screw is screwed with the adjusting screw hole;

[0030] The end part of the limit screw abuts against the positioning block.

[0031] In a feasible implementation manner, the driving mechanism includes a reduction motor and a speed regulator;

[0032] The reduction motor is arranged on the bottom plate, the output end of the reduction motor is connected with the first end of the rotating shaft through a transmission belt, and the speed regulator is electrically connected with the reduction motor.

[0033] In a feasible implementation, the device further includes a power supply, a power switch, and a protective cover;

[0034] The power supply and the protective cover are both arranged on the bottom plate. The protective cover covers the power supply, the reduction motor, the carbon brush holder, and the micro motor. The power switch and the speed regulator are both arranged on the protective cover;

[0035] The power supply is electrically connected to the power switch, and the power switch is respectively connected to the speed regulator and the carbon brush holder.

[0036] In a device for chamfering the end face of a guide wire provided by an embodiment of the present application, a rotating shaft is provided on the carbon brush holder. The output end of the driving mechanism is connected to the rotating shaft. A conductive adapter plate is provided on the rotating shaft. A micro motor is provided on the conductive adapter plate. A grinding wheel is provided at the output end of the micro motor. The clamping mechanism clamps the guide wire. The chamfered end of the guide wire extends out of the clamping mechanism and fits the grinding surface of the grinding wheel. And the extending direction of the chamfered end of the guide wire is coaxial with the axis of the rotating shaft. The driving mechanism drives the rotating shaft to rotate, so that the grinding wheel revolves around the chamfered end of the guide wire. At the same time, the micro motor drives the grinding wheel to rotate self - sufficiently, thereby realizing uniform chamfering of the guide wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic structural diagram of a device for chamfering the end face of a guide wire provided by the present application;

[0038] Figure 2 is a schematic diagram of the internal structure of the protective cover;

[0039] Figure 3 is a schematic diagram of the cooperation state between the grinding wheel and the clamping mechanism;

[0040] Figure 4 is a schematic structural diagram of the clamping mechanism;

[0041] Figure 5 is a sectional view of the quick - clamp seat and its connection structure;

[0042] Figure 6 is a schematic structural diagram of the quick - clamp seat;

[0043] Figure 7 is a schematic structural diagram of the quick - clamp head;

[0044] Figure 8 is a schematic structural diagram of the clamping mechanism in the state of clamping the guide wire;

[0045] Figure 9 is a schematic structural diagram of the open state of the clamping mechanism;

[0046] Figure 10 is a schematic structural diagram of the quick - clamp head in the state of clamping the guide wire;

[0047] Figure 11 It is a schematic structural diagram of the quick chuck in the open state.

[0048] Explanation of the reference numerals in the drawings:

[0049] 1 - Base plate; 2 - Carbon brush holder; 3 - Conductive adapter plate; 4 - Micro motor; 5 - Grinding wheel; 6 - Quick clamp seat; 7 - Pull rod; 8 - Card plate; 9 - Spring; 10 - Quick chuck; 11 - Guide rod; 12 - Cover plate; 13 - Slide rail; 14 - Rotating plate; 15 - Positioning plate; 16 - Tension spring; 17 - Blocking block; 18 - Handle seat; 19 - Handle; 20 - Link rod; 21 - Positioning block; 22 - Limit screw; 23 - Reduction motor; 24 - Speed governor; 25 - Power supply; 26 - Power switch; 27 - Protective cover;

[0050] 61 - Longitudinal plate; 62 - Connecting plate; 63 - Through hole; 64 - Feeding hole; 65 - Trapezoidal through groove; 66 - Guide inclined groove; 67 - Avoidance groove; 68 - Transverse plate;

[0051] 101 - Main body; 102 - Semi - cone; 103 - Ear plate; 104 - Clamping block; 105 - Clamping groove;

[0052] 141 - Bow - shaped plate; 142 - Rotating plate. Detailed implementation manners

[0053] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0054] A guide wire is a medical supply, mainly used to guide other instruments into human body lumens, such as blood vessels, ureters, etc. The guide wire is usually made of metal or polymer materials, has flexibility and bendability, and can pass through narrow lumens. One end of the guide wire usually has a soft tip to reduce damage to the lumen wall, and the other end is connected to a handle for doctors to operate.

[0055] Chamfering is a machining process used to remove sharp edges at the edges of metals or other materials, making them smoother and rounder. In the medical field, chamfering is also used in the manufacture of some medical devices, such as surgical instruments, implants, etc. By chamfering, the damage of medical devices to human tissues can be reduced, and the safety and effectiveness of surgeries can be improved.

[0056] Therefore, chamfering the medical guide wire means processing the medical guide wire to make its tip smoother and rounder, reducing the damage to the lumen wall of the human body. The existing guide wire chamfering devices are relatively complex in operation, have low chamfering efficiency, and the chamfering is not uniform enough.

[0057] The guide wire end chamfering device provided by this application drives the rotating shaft to rotate through the driving mechanism, so that the grinding wheel 5 revolves around the chamfering end of the guide wire. At the same time, the micro motor 4 drives the grinding wheel 5 to rotate, so as to achieve uniform chamfering of the guide wire. This guide wire end chamfering device is simple in operation, convenient to use, has uniform chamfering, and high chamfering efficiency.

[0058] The following will describe in detail the specific structure of the device for chamfering the end face of the guide wire provided by this application with reference to the accompanying drawings.

[0059] Refer to Figures 1-11 As shown, the embodiment of this application provides a device for chamfering the end face of a guide wire, including a bottom plate 1, a carbon brush holder 2, a driving mechanism, and a clamping mechanism arranged on the bottom plate 1;

[0060] As Figure 2 shown, the bottom plate 1 can be a rectangular bottom plate. The driving mechanism and the carbon brush holder 2 are arranged at the right end of the upper surface of the bottom plate 1. The carbon brush holder 2 is provided with a rotating shaft, and the output end of the driving mechanism is connected to the right end of the rotating shaft. The driving mechanism drives the rotating shaft to rotate. The left end of the rotating shaft is provided with a conductive adapter plate 3. The conductive adapter plate 3 includes a disk body and a mounting plate. The disk body is arranged on the rotating shaft and is coaxial with the rotating shaft. The mounting plate can be a V-shaped plate body, and the mounting plate is fixed on the left side surface of the disk body. The conductive adapter plate 3 is provided with a micro motor 4. The output end of the micro motor 4 is provided with a grinding wheel 5. The axis of the rotating shaft passes through the grinding surface of the grinding wheel 5 and forms a certain angle with the grinding surface of the grinding wheel 5. The output end of the micro motor 4 is inclined, and the inclination angle can be 45°, that is, the grinding wheel 5 is inclined 45°;

[0061] The clamping mechanism clamps the guide wire. The chamfering end of the guide wire extends out of the clamping mechanism and fits the grinding surface of the grinding wheel 5, and the extending direction of the chamfering end of the guide wire is coaxial with the axis of the rotating shaft;

[0062] The carbon brush holder 2, the conductive adapter plate 3, and the micro motor 4 are electrically connected in sequence. The driving mechanism drives the rotating shaft to rotate, so that the grinding wheel 5 revolves around the chamfering end of the guide wire. At the same time, the micro motor 4 drives the grinding wheel 5 to rotate, so as to achieve uniform chamfering of the guide wire.

[0063] Refer to Figures 3-7 As shown, in some embodiments, the clamping mechanism includes a quick clamp seat 6, a pull rod 7, a clamping plate 8, a spring 9, a quick clamp head 10, and a guide rod 11;

[0064] As Figure 6As shown, the quick clamping seat 6 includes a longitudinal plate 61 and a connecting plate 62. The longitudinal plate 61 is a rectangular plate arranged longitudinally. A through hole 63 and a feeding hole 64 are respectively provided in the upper and middle parts of the longitudinal plate 61. The through hole 63 is a circular hole, and the left end of the feeding hole 64 is conical. The connecting plate 62 is a rectangular plate arranged horizontally. Two connecting plates 62 are arranged in parallel in the upper and lower parts of the longitudinal plate 61 facing the grinding wheel 5 side, that is, the two connecting plates 62 are respectively arranged in the upper and lower parts of the right side surface of the longitudinal plate 61;

[0065] A trapezoidal through groove 65 is provided in the middle of each connecting plate 62. The trapezoidal through groove 65 is an isosceles trapezoid. The trapezoidal through groove 65 penetrates the connecting plate up and down, and the right end of the trapezoidal through groove 65 penetrates the connecting plate, and the length of the left straight side of the trapezoidal through groove 65 is greater than the length of the right straight side;

[0066] In some embodiments, the longitudinal plate 61 and the connecting plate 62 are of an integral structure, and a trapezoidal through groove 65 is provided on the longitudinal plate 61 and the connecting plate 62, that is, the left end of the trapezoidal through groove 65 is located on the longitudinal plate 61;

[0067] Guide inclined grooves 66 are oppositely provided on the front and rear sides of the two connecting plates 62. The guide inclined grooves 66 have a certain length. The extending direction of the guide inclined grooves 66 is parallel to the inner wall of the adjacent inclined surface of the trapezoidal through groove 65, that is, the long axis of the front guide inclined groove 66 is parallel to the front inclined inner wall of the trapezoidal through groove 65, and the long axis of the rear guide inclined groove 66 is parallel to the rear inclined inner wall of the trapezoidal through groove 65;

[0068] As Figure 7 As shown, two quick clamping heads 10 are oppositely arranged. The quick clamping head 10 includes a main body 101, a semi-cone 102, an ear plate 103 and a clamping block 104. The top view of the main body 101 is a right trapezoid. The main body 101 has opposite first plane and inclined surface, that is, the opposite surfaces of the main bodies 101 of the two quick clamping heads 10 are the first plane, and the opposite surfaces of the main bodies 101 of the two quick clamping heads 10 are the inclined surfaces, and the inclination of the inclined surface of the main body 101 is the same as the inclination of the inner wall of the trapezoidal through groove 65. The length of the inclined surface of the main body 101 is less than the length of the inclined inner wall of the trapezoidal through groove 65. The left and right side surfaces of the main bodies 101 of the two quick clamping heads 10 are parallel planes;

[0069] The semi-cone 102 is a 1 / 2 cone. The semi-cone 102 has a second plane and a conical surface. The opposite surfaces of the semi-cones 102 of the two quick clamping heads 10 are the second plane, and the opposite surfaces of the semi-cones 102 of the two quick clamping heads 10 are the conical surfaces. The semi-cone 102 is located at the right end of the main body 101, and the first plane and the second plane are in the same plane to form a clamping surface. A clamping groove 105 is provided on the clamping surface. The clamping groove 105 is a semi-circular straight groove body. The clamping groove 105 starts from the conical end of the semi-cone 102 and ends at the left end of the main body 101;

[0070] As Figure 5As shown, the bodies 101 of two quick chucks 10 are oppositely arranged in the trapezoidal through groove 65. The clamping grooves 105 of the two quick chucks 10 and the feeding hole 64 are in the same plane. The two clamping grooves 105 clamp the guide wire. The semi-cones 102 of the two quick chucks 10 form a cone. The chamfered end of the guide wire penetrates through the cone. The inclined surfaces of the two quick chucks 10 are slidably connected to the inclined inner walls of the trapezoidal through groove 65.

[0071] As Figure 5 and Figure 7 shown, the ear plate 103 can be an annular plate body. The ear plate 103 is arranged on the inclined surface of the body 101 and is inserted between the two connecting plates 62. The guide rod 11 is a vertical cylinder. The two guide rods 11 are respectively arranged on the ear plates 103 of the two quick chucks 10. The outer wall of the guide rod 11 is slidably connected to the inner wall of the guide inclined groove 66.

[0072] The clamping block 104 is located at the upper part of the body 101. There is a certain gap between the clamping blocks 104 of the two quick chucks 10. The pull rod 7 passes through the through hole 63 and the gap. The clamping plate 8 is a rectangular clamping plate. The clamping plate 8 is fixedly arranged at the right end of the pull rod 7. The left side surface of the clamping plate 8 is clamped with the right side surfaces of the two clamping blocks 104.

[0073] The spring 9 is sleeved on the pull rod 7. The two ends of the spring 9 respectively abut against the right outer wall of the longitudinal plate 61 and the left outer walls of the two clamping blocks 104.

[0074] When the left end of the pull rod 7 is pulled to the left, the clamping plate 8 is clamped with the clamping blocks 104 of the two quick chucks 10, so that the two quick chucks 10 move to the left. Moreover, the guide inclined groove 66 limits the guide rod 11, and the inclined outer walls of the quick chucks 10 are attached to and limited by the inclined inner walls of the trapezoidal through groove 65. When the two quick chucks 10 move to the left synchronously, they gradually open, so that the two clamping grooves 105 are opened, reaching the Figure 11 state shown in Figure 11 where A is the guide wire;

[0075] Insert the polished end of the guide wire from left to right into the feeding hole 64, so that the polished end of the guide wire extends out of the quick chuck 10. Release the pull rod 7. The spring 9 pushes the clamping block 104, so that the two quick chucks 10 move to the right in the trapezoidal through groove 65. The inner walls of the two quick chucks 10 are attached to each other until reaching the Figure 10 state shown in Figure 10 where A is the guide wire, and the guide wire is quickly clamped.

[0076] Referring to Figure 6 shown, in some embodiments, an avoidance groove 67 matching the ear plate 103 is arranged on the connecting plate 62. The avoidance groove 67 is communicated with the guide inclined groove 66.

[0077] When assembling the clamping mechanism, there are two quick clamps 10 inside the quick clamp seat 6. When assembling the first quick clamp 10, the first quick clamp 10 can be inserted into the trapezoidal through groove 65 from the right ends of the two connecting plates 62, and the ear plate 103 of the first quick clamp 10 is inserted between the two connecting plates 62;

[0078] Since the first quick clamp 10 occupies a certain space in the trapezoidal through groove 65, the second quick clamp 10 cannot be inserted into the trapezoidal through groove 65 from the right end of the connecting plate 62. At this time, an avoidance groove 67 is provided on the upper connecting plate 62, and the second quick clamp 10 is assembled from top to bottom. The main body 101 of the second quick clamp 10 is inserted into the trapezoidal through groove 65 from top to bottom, and the ear plate 103 passes through the avoidance groove 67 and is inserted between the two connecting plates 62, so as to facilitate the assembly of the clamping mechanism.

[0079] In some embodiments, a connection hole is provided on the ear plate 103, and the guide rod 11 is inserted into the connection hole;

[0080] The clamping mechanism further includes a cover plate 12. The two cover plates 12 are respectively arranged on the outer walls of the two connecting plates 62. The two ends of the guide rod 11 respectively abut against the opposite surfaces of the two cover plates 12, so as to limit the guide rod 11 and prevent the guide rod 11 from detaching from the ear plate 103.

[0081] In some embodiments, the cover plate 12 and the connecting plate 62 are respectively provided with a first bolt hole and a second bolt hole, and the bolt passes through the first bolt hole and the second bolt hole to fix the cover plate 12 on the quick clamp seat 6.

[0082] Refer to Figure 3 and Figure 4 As shown, in some embodiments, the clamping mechanism further includes a slide rail 13, a rotating plate 14, a positioning plate 15, a tension spring 16 and a blocking block 17;

[0083] The slide rail 13 is horizontally arranged on the left side of the upper surface of the bottom plate 1. The quick clamp seat 6 further includes a transverse plate 68. The transverse plate 68 can be a horizontally arranged rectangular plate body. The transverse plate 68 is located at the left end of the longitudinal plate 61, and the transverse plate 68 is fixed on the slider of the slide rail 13;

[0084] The rotating plate 14 includes an arcuate plate 141 and rotating plates 142 arranged at both ends of the arcuate plate 141. The width of the arcuate plate 141 matches the width of the quick clamp seat 6. The rotating plate 142 is a long plate strip. The middle upper part of the rotating plate 142 is connected to the end of the arcuate plate 141, and the two form a T shape;

[0085] The bottom ends of the two rotating plates 142 are respectively rotatably arranged on the front and back sides of the longitudinal plate 61. The two ends of the tension spring 16 are respectively arranged on the outer wall of the transverse plate 68 and the top end of the rotating plate 142;

[0086] The positioning plate 15 is an L-shaped plate body. The bottom end of the positioning plate 15 is fixedly arranged on the bow-shaped plate 141, and the upper part of the positioning plate 15 is located above the cover plate 12. The positioning plate 15 is clamped with the cover plate 12.

[0087] The blocking block 17 is arranged on the bottom plate 1, and the rotating plate 142 is slidably connected with the blocking block 17.

[0088] As Figure 4 and Figure 8 shown, Figure 8 in which A is a guide wire. In the natural state, the clamping mechanism is in a balanced state. At this time, the two quick clamping heads 10 are in a clamping state under the elastic force of the spring 9. The bow-shaped plate 141 and the rotating plate 142 are both in an inclined state, and the bow-shaped plate 141 is located above the cover plate 12. When the pull rod 7 is pulled to the left, the quick clamping seat 6 moves to the left on the slide rail 13. The upper end of the rotating plate 142 contacts the blocking block 17. Continuing to pull the pull rod 7, the upper part of the rotating plate 142 rotates to the right, stretching the tension spring 16 to store energy. The bow-shaped plate 141 drives the positioning plate 15 to rotate to the right until the bow-shaped plate 141 reaches a horizontal state. The extension line of the clamping groove 105 passes through the bow-shaped plate 141. The positioning plate 15 is clamped with the cover plate 12 of the clamping mechanism, making the positioning plate 15, the bow-shaped plate 141 and the rotating plate 142 unable to rotate further, and making the quick clamping seat 6 unable to move to the left on the slide rail 13. At this time, continuing to pull the pull rod 7, the clamping plate 8 drives the two quick clamping heads 10 to move to the left. While the two quick clamping heads 10 move to the left synchronously, they gradually open, opening the two clamping grooves 105 to reach Figure 9 the state shown, Figure 9 in which A is a guide wire;

[0089] At this time, the distance between the bow-shaped plate 141 and the tapered end of the half-cone 102 is equal to the preset length of the chamfered end of the guide wire extending out of the clamping mechanism. Insert the polished end of the guide wire from left to right into the feeding hole 64, so that the polished end of the guide wire extends out of the quick clamping head 10 and fits against the bow-shaped plate 141. Release the pull rod 7. The two quick clamping heads 10 move to the right in the trapezoidal through groove 65 under the elastic force of the spring 9. The inner walls of the two quick clamping heads 10 are in contact with each other, clamping the guide wire. At the same time, the tension spring 16 pulls the rotating plate 142 to rotate counterclockwise, making the quick clamping seat 6 move to the right on the slide rail 13 until it returns to the position, reaching Figure 8 the state.

[0090] In some embodiments, the clamping mechanism further includes a handle seat 18, a handle 19 and a connecting rod 20;

[0091] The handle seat 18 can be a square seat body. The handle seat 18 is fixedly arranged on the bottom plate 1. The middle part of the handle 19 is rotatably connected with the handle seat 18. The end part of the handle 19 is hinged with the first end of the connecting rod 20. The second end of the connecting rod 20 is hinged with the second end of the pull rod 7. When the handle 19 is pushed to the right, the connecting rod 20 can be pulled to the left.

[0092] Refer to Figure 8 As shown, in some embodiments, the clamping mechanism further includes a positioning block 21 and a limit screw 22;

[0093] The positioning block 21 is fixedly arranged on the transverse plate 68, an adjusting screw hole is arranged on the blocking block 17, and the limit screw 22 is screwed with the adjusting screw hole;

[0094] The left end of the limit screw 22 abuts against the right side surface of the positioning block 21;

[0095] When the tension spring 16 pulls the rotating plate 142 to rotate counterclockwise, the quick clamp seat 6 and the positioning block 21 move rightward on the slide rail 13. When the right side surface of the positioning block 21 contacts the left end of the limit screw 22, the clamping mechanism reaches the reset state. At this time, the tension spring 16 is still in a stretched state and applies a pulling force to the rotating plate 142, thereby fixing the position of the quick clamp seat 6.

[0096] Refer to Figure 1 As shown, in some embodiments, the driving mechanism includes a reduction motor 23 and a speed regulator 24;

[0097] Both the reduction motor 23 and the speed regulator 24 are conventional devices. The reduction motor 23 is arranged on the bottom plate 1, the output end of the reduction motor 23 is connected to the right pulley of the rotating shaft through a transmission belt. The transmission belt can be a belt. The speed regulator 24 is electrically connected to the reduction motor 23. When the reduction motor 23 works, it drives the rotating shaft to rotate through the transmission belt.

[0098] In some embodiments, the device further includes a power supply 25, a power switch 26 and a protective cover 27;

[0099] The power supply 25 can be a 4V power supply. Both the power supply 25 and the protective cover 27 are arranged on the bottom plate 1. The protective cover 27 covers the power supply 25, the reduction motor 23, the carbon brush holder 2 and the micro motor 4. The power switch 26 and the speed regulator 24 are both arranged on the protective cover 27;

[0100] The power supply 25 is electrically connected to the power switch 26, and the power switch 26 is respectively connected to the speed regulator 24 and the carbon brush holder 2.

[0101] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application based on several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0102] In the above specific embodiments, the objectives, technical solutions, and beneficial effects of the embodiments of the present application have been further described in detail. It should be understood that the above are only the specific embodiments of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A device for chamfering the end face of a guide wire, characterized in that: It comprises a base plate (1), a carbon brush holder (2) arranged on the base plate (1), a driving mechanism and a clamping mechanism; The carbon brush holder (2) is provided with a rotating shaft, the output end of the driving mechanism is connected to the first end of the rotating shaft, the second end of the rotating shaft is provided with a conductive adapter plate (3), the conductive adapter plate (3) is provided with a micro motor (4), the output end of the micro motor (4) is provided with a grinding wheel (5), the axis of the rotating shaft passes through the grinding surface of the grinding wheel (5) and forms a certain angle with the grinding surface of the grinding wheel (5); The clamping mechanism clamps the guide wire, and the chamfered end of the guide wire extends out of the clamping mechanism to fit the grinding surface of the grinding wheel (5), and the extension direction of the chamfered end of the guide wire is coaxial with the axis of the rotating shaft; The carbon brush holder (2), the conductive adapter plate (3) and the micro motor (4) are electrically connected in sequence, and the grinding wheel (5) revolves around the chamfered end of the guide wire while rotating on its own.

2. The device for chamfering the end face of a guide wire according to claim 1, characterized in that: The clamping mechanism comprises a quick clamp seat (6), a pull rod (7), a clamping plate (8), a spring (9), a quick clamp head (10) and a guide rod (11); The quick clamp seat (6) comprises a longitudinal plate (61) and a connecting plate (62), the upper part and the middle part of the longitudinal plate (61) are respectively provided with a through hole (63) and a feeding hole (64), the two connecting plates (62) are arranged in parallel at the upper part and the lower part of the longitudinal plate (61) facing the grinding wheel (5), the middle part of the two connecting plates (62) are both provided with a trapezoidal through groove (65), the two sides of the two connecting plates (62) are both oppositely provided with a guide inclined groove (66), and the extension square of the guide inclined groove (66) is parallel to the inner wall of the adjacent inclined surface of the trapezoidal through groove (65); The quick clamp (10) comprises a main body (101), a semi-cone (102), an ear plate (103) and a clamping block (104); the main body (101) has a first plane and an inclined plane opposite to each other; the semi-cone (102) has a second plane and a conical surface; the semi-cone (102) is located at a first end of the main body (101); the first plane and the second plane are located on the same plane, forming a clamping surface; a clamping groove (105) is provided on the clamping surface; the clamping groove (105) starts from the conical end of the semi-cone (102) and ends at the second end of the main body (101); The main bodies (101) of the two quick clamps (10) are relatively arranged in the trapezoidal through groove (65), the clamping grooves (105) of the two quick clamps (10) and the feeding hole (64) are located in the same plane, the two clamping grooves (105) clamp the guide wire, the semi-cones (102) of the two quick clamps (10) form a cone, the chamfered end of the guide wire passes through the cone, and the inclined surfaces of the two quick clamps (10) are slidably connected to the inner wall of the inclined surface of the trapezoidal through groove (65); The ear plate (103) is arranged on the inclined surface of the main body (101) and inserted between the two connecting plates (62). The two guide rods (11) are respectively arranged on the ear plates (103) of the two quick clamps (10). The outer wall of the guide rod (11) is slidably connected to the inner wall of the guide inclined groove (66). The clamping block (104) is located at the upper part of the main body (101), the pull rod (7) passes through the through hole (63), the clamping plate (8) is fixed to the first end of the pull rod (7), and the second side outer wall of the clamping plate (8) is clamped with the first side outer walls of the two clamping blocks (104); The spring (9) is sleeved on the pull rod (7), and two ends of the spring (9) are respectively in contact with the first side outer wall of the longitudinal plate (61) and the second side outer walls of the two clamping blocks (104).

3. The device for chamfering the end face of a guide wire according to claim 2, characterized in that: The connecting plate (62) is provided with an avoidance groove (67) matching the ear plate (103), and the avoidance groove (67) is communicated with the guide inclined groove (66); The ear plate (103) passes through the avoidance groove (67) and is inserted between the two connecting plates (62).

4. The device for chamfering the end face of a guide wire according to claim 3, characterized in that: The ear plate (103) is provided with a connection hole, and the guide rod (11) is plugged into the connection hole; The clamping mechanism further comprises a cover plate (12), wherein the two cover plates (12) are respectively arranged on the outer walls of the two connecting plates (62), and the two ends of the guide rod (11) are respectively in contact with the opposite surfaces of the two cover plates (12).

5. The device for chamfering the end face of a guide wire according to claim 4, characterized in that: The cover plate (12) and the connecting plate (62) are respectively provided with a first bolt hole and a second bolt hole, and a bolt passes through the first bolt hole and the second bolt hole so that the cover plate (12) is fixed on the quick clamp seat (6).

6. The device for chamfering the end face of a guide wire according to claim 4, characterized in that: The clamping mechanism also includes a slide rail (13), a rotating plate (14), a positioning plate (15), a tension spring (16) and a blocking block (17); The quick clamp seat (6) further comprises a transverse plate (68), wherein the transverse plate (68) is located at the second end of the longitudinal plate (61), and the transverse plate (68) is fixedly mounted on a slide block of the slide rail (13); The rotating plate (14) comprises an arched plate (141) and rotating plates (142) arranged at both ends of the arched plate (141), the bottom ends of the two rotating plates (142) are respectively rotatably arranged on both sides of the longitudinal plate (61), and the two ends of the tension spring (16) are respectively arranged on the outer wall of the transverse plate (68) and the top of the rotating plate (142); the positioning plate (15) is fixedly arranged on the arched plate (141), and the positioning plate (15) is clamped with the cover plate (12); The blocking block (17) is arranged on the bottom plate (1), and the rotating plate (142) is slidably connected to the blocking block (17).

7. The device for chamfering the end face of a guide wire according to claim 6, characterized in that: The clamping mechanism also includes a handle seat (18), a handle (19) and a connecting rod (20); The handle seat (18) is fixed on the base plate (1), the middle part of the handle (19) is rotatably connected to the handle seat (18), the end of the handle (19) is hinged to the first end of the connecting rod (20), and the second end of the connecting rod (20) is hinged to the second end of the pull rod (7).

8. The device for chamfering the end face of a guide wire according to claim 6, characterized in that: The clamping mechanism also includes a positioning block (21) and a limiting screw (22); The positioning block (21) is fixed on the transverse plate (68), the blocking block (17) is provided with an adjusting screw hole, and the limiting screw rod (22) is screwed to the adjusting screw hole; The end of the limiting screw (22) abuts against the positioning block (21).

9. The device for chamfering the end face of a guide wire according to claim 1, characterized in that: The driving mechanism comprises a reduction motor (23) and a speed regulator (24); The reduction motor (23) is arranged on the base plate (1), the output end of the reduction motor (23) is connected to the first end of the rotating shaft via a transmission belt, and the speed regulator (24) is electrically connected to the reduction motor (23).

10. The device for chamfering the end face of a guide wire according to claim 9, characterized in that: The device also includes a power supply (25), a power switch (26) and a protective cover (27); The power source (25) and the protective cover (27) are both arranged on the base plate (1); the protective cover (27) covers the power source (25), the reduction motor (23), the carbon brush holder (2) and the micro motor (4); the power switch (26) and the speed regulator (24) are both arranged on the protective cover (27); The power source (25) is electrically connected to the power switch (26), and the power switch (26) is respectively connected to the speed regulator (24) and the carbon brush holder (2).

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