CN214032623U - Thermal treatment device for screw tap drill of surgical operation instrument with large length-diameter ratio - Google Patents
Thermal treatment device for screw tap drill of surgical operation instrument with large length-diameter ratio Download PDFInfo
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- CN214032623U CN214032623U CN202022985784.1U CN202022985784U CN214032623U CN 214032623 U CN214032623 U CN 214032623U CN 202022985784 U CN202022985784 U CN 202022985784U CN 214032623 U CN214032623 U CN 214032623U
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Abstract
The utility model belongs to the technical field of the thermal treatment technique and specifically relates to a heat treatment device of big length-diameter ratio surgical instruments screw tap drill bit, including the carriage, the screw tap drill bit passes through the vertical inside of placing in the furnace chamber of carriage. The utility model discloses a heat treatment device, the screw tap drill bit passes through the vertical placing of carriage, can avoid original conditions such as extrusion, the collision that the mode takes place easily that stacks, can make every screw tap drill bit all be heated better moreover, effectively reduces and warp, shortens process time, improves yields and production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the thermal treatment technique and specifically relates to a thermal treatment device of big length-diameter ratio surgical instruments screw tap drill bit.
Background
Aiming at the existing stainless steel wire conical drill bit series products of medical instruments, the length-diameter ratio of the stainless steel wire conical drill bit series products can reach 180 (the length: the diameter = 180), the tap drill bits are all transversely overlapped together in the existing heat treatment process, the treatment process time is long, and the products are easily deformed (the straightness of the products after deformation is about 0.7 mm) after heat treatment under the action of thermal stress and internal stress, and the rejection rate of the products is high. Therefore, in order to reduce deformation and improve yield, it is necessary to develop a special heat treatment apparatus for a tap drill having a large aspect ratio.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a heat treatment device of big length-diameter ratio surgical instruments screw tap drill bit, through set up the clip on hanging the pole, clip the one end of screw tap drill bit with the clip, make the screw tap drill bit hang perpendicularly inside the furnace chamber, the screw tap drill bit is contactless each other, not only can avoid taking place the circumstances such as extrusion, collision between the screw tap drill bit, can also make every screw tap drill bit be heated better, effectively reduce and warp, shorten heat treatment time, improve yields and production efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a heat treatment device for a tap drill of a surgical instrument with a large length-diameter ratio comprises a supporting frame, wherein the tap drill is vertically placed in an oven cavity through the supporting frame.
Specifically, the support frame is provided with at least one row of hanging rods, each hanging rod is provided with a plurality of detachable clamps, and the clamps are used for clamping one end of the screw tap drill bit to enable the screw tap drill bit to be vertically hung in the furnace chamber.
Specifically, the top and the periphery of the supporting frame keep a certain distance with the inner wall of the furnace chamber.
Specifically, the heat treatment device for the tap drill of the surgical instrument with the large length-diameter ratio further comprises a furnace temperature uniformity detection device for detecting the temperature uniformity in the furnace.
Specifically, the furnace temperature uniformity detection device comprises a plurality of process temperature test blocks, a plurality of thermocouples and a multi-channel temperature recorder, wherein the process temperature test blocks are fixed at different positions of a support frame and used for collecting temperatures of different areas in the furnace, temperature measurement holes are formed in the process temperature test blocks, one ends of the thermocouples are inserted into the temperature measurement holes to measure the internal temperature of the process temperature test blocks, the other ends of the thermocouples are connected with the multi-channel temperature recorder, and the internal temperature of the process temperature test blocks is displayed through the multi-channel temperature recorder.
Specifically, above-mentioned carriage is the cuboid structure, process temperature test piece is equipped with five, and one of them sets up the geometric centre at the cuboid, and four other settings are on four summits that the cuboid is not adjacent to each other respectively.
Specifically, the temperature measuring hole is a blind hole, the bottom of the blind hole is located at the geometric center of the process temperature measuring block, and one end of the thermocouple is inserted into and fixed at the bottom of the blind hole.
Specifically, the process temperature testing block is cylindrical, and the temperature measuring hole is a blind hole formed in the cylindrical process temperature testing block along the axial direction from one bottom surface of the cylindrical process temperature testing block.
Specifically, the temperature measuring hole is located in the center of the bottom surface, the depth of the temperature measuring hole is half of the height of the cylindrical process temperature measuring block, and the diameter of the temperature measuring hole is equal to that of the thermocouple.
Specifically, the cylindrical process temperature test block is vertically fixed on the support frame, so that the temperature measurement hole is positioned at the top of the cylindrical process temperature test block.
The utility model has the advantages that:
(1) the utility model discloses a heat treatment device, the screw tap drill bit is vertically placed through the carriage, can avoid the extrusion that original mode of stacking easily takes place, condition such as collision, can make every screw tap drill bit be heated better moreover, effectively reduce the deformation, shorten processing time, improve yields and production efficiency;
(2) the support frame is provided with at least one row of suspension rods, the suspension rods are provided with the clamps, and one end of the screw tap drill bit is clamped by the clamps, so that the screw tap drill bit is vertically suspended in the furnace chamber, the screw tap drill bits can be kept from being contacted with each other, extrusion, collision and the like are avoided, each screw tap drill bit can be better heated, deformation is effectively reduced, and the heat treatment time is shortened;
(3) the heat treatment device of the utility model also comprises a furnace temperature uniformity detection device which is used for detecting the temperature uniformity in the furnace and is beneficial to the smooth proceeding of the heat treatment process;
(4) the utility model provides an oven temperature homogeneity detection device has set up the process temperature test piece to set up the temperature measurement hole on the process temperature test piece, insert the temperature measurement downthehole with the one end of thermocouple, thereby detect the inside temperature of process temperature test piece, with the true temperature of representing the part, detect the actual temperature that the result is more close to the part, it is more accurate.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the apparatus for detecting the uniformity of furnace temperature in the present invention;
FIG. 3 is a schematic structural diagram of a process temperature test block according to the present invention;
in the figure: 1. a support frame; 11. a suspension rod; 12. a clip; 2. a process temperature test block; 21. a temperature measuring hole; 3. a thermocouple; 4. a multi-channel temperature recorder; 8. a tap drill; 9. a furnace chamber.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
A thermal treatment device for a tap drill of a surgical instrument with a large length-diameter ratio is shown in figure 1 and comprises a supporting frame 1, wherein a tap drill 8 is vertically placed in an oven cavity 9 through the supporting frame 1. The tap drill 8 is vertically placed through the supporting frame 1, the conditions of extrusion, collision and the like which are easy to occur in the original stacking mode can be avoided, each tap drill 8 can be heated better, deformation is effectively reduced, the processing time is shortened, and the yield and the production efficiency are improved.
In a specific embodiment, as shown in fig. 1, at least one row of hanging rods 11 is arranged on the supporting frame 1, each hanging rod 11 is provided with a plurality of detachable clamps 12, and the clamps 12 are used for clamping one end of the tap drill 8, so that the tap drill 8 is vertically suspended inside the furnace chamber 9. The screw tap drill bits 8 are vertically suspended inside the furnace chamber 9 through the clamps 12, the screw tap drill bits 8 are not in contact with each other, the situations of extrusion, collision and the like between the screw tap drill bits 8 can be avoided, each screw tap drill bit 8 can be heated better, deformation is effectively reduced, the heat treatment time is shortened, and the yield and the production efficiency are improved.
After one end of the tap drill 8 is clamped by the clamp 12 and is vertically suspended in the furnace chamber 9, various mechanical performance and mechanical performance indexes of the product can meet the standards, but the deformation in the straightness direction is greatly reduced, and the size and the quality of the product are effectively ensured.
In a specific embodiment, as shown in fig. 1, two rows of hanging rods 11 are arranged on the supporting frame 1 at intervals.
In one embodiment, as shown in fig. 2, the top and the periphery of the support frame 1 are spaced apart from the inner wall of the cavity 9.
In a specific embodiment, the device further comprises a furnace temperature uniformity detection device for detecting the temperature uniformity in the furnace.
In a specific embodiment, as shown in fig. 2, the furnace temperature uniformity detection device includes a plurality of process temperature test blocks 2, a plurality of thermocouples 3 and a multi-channel temperature recorder 4, the process temperature test blocks 2 are fixed at different positions of the support frame 1 for collecting temperatures of different areas in the furnace, temperature measurement holes 21 are formed in the process temperature test blocks 2, one ends of the thermocouples 3 are inserted into the temperature measurement holes 21 to measure the internal temperature of the process temperature test blocks 2, the other ends of the thermocouples are connected to the multi-channel temperature recorder 4, and the internal temperature of the process temperature test blocks 2 is displayed by the multi-channel temperature recorder 4.
In the testing process, the process temperature testing blocks 2 are fixed at different parts of the supporting frame 1 by steel wires, then the supporting frame 1 is placed in the furnace chamber 9, the top and the periphery of the supporting frame 1 keep a certain distance (about 6-8 cm) with the inner wall of the furnace chamber 9, then one end of the thermocouple 3 is inserted into the temperature measuring hole 21 of the process temperature testing block 2 through the furnace wall, the other end is inserted into the multichannel temperature recorder 4, the parts are placed on the supporting frame 1, the furnace door is closed, the multichannel temperature recorder 4 is opened, the temperature is raised to the target temperature according to the specified requirements, the temperature is kept for a period of time, the temperatures of the different process temperature testing blocks 2 displayed on the multichannel temperature recorder 4 are recorded at any time in the process, and the highest temperature point and the lowest temperature point in the furnace in the heat treatment process can be rapidly and accurately identified. After the high and low temperature points are determined, the stainless steel wire conical drill bit of the medical instrument is placed into a heat treatment furnace. The optimized multi-stage heating and heat-preserving heat treatment process is adopted, one end of the screw tap drill bit 8 is clamped by the clamp, and the transverse stacking mode is changed into vertical clamping.
In a specific embodiment, as shown in fig. 2, the support frame 1 is a rectangular parallelepiped structure, and the process temperature test block 2 is provided with five blocks, one of which is arranged at the geometric center of the rectangular parallelepiped, and the other four blocks are respectively arranged at four vertexes of the rectangular parallelepiped, which are not adjacent to each other. In a specific embodiment, an inclined rod passing through the geometric center of the rectangular parallelepiped as shown in fig. 2 may be disposed in the supporting frame 1, so as to fix the process temperature testing block 2.
The conventional furnace temperature uniformity detection device is generally provided with thermocouples at eight vertexes and a geometric center of a cuboid, and the number of the thermocouples is 9, but the inventor finds that detection results obtained by arranging 5 test points at the geometric center of the cuboid and four vertexes which are not adjacent to each other are basically consistent with detection results obtained by arranging 9 test points, so that the number of the thermocouples is reduced on the premise of ensuring the detection results by arranging 5 test points in a reasonable layout.
In a specific embodiment, the temperature measuring hole 21 is a blind hole, the bottom of which is located at the geometric center of the process temperature measuring block 2, and one end of the thermocouple 3 is inserted into and fixed at the bottom of the blind hole. The bottom of the temperature measuring hole 21 (blind hole) is positioned at the geometric center of the process temperature testing block 2, and the thermocouple 3 is inserted and fixed at the bottom of the blind hole, i.e. the detection part of the thermocouple 3 can be the geometric center of the process temperature testing block 2, and can represent the actual temperature of the part. In a particular embodiment, the shape of the process temperature test block 2 may be configured to conform to the shape of the heat treated part.
In a particular embodiment, as shown in FIG. 3, the process temperature test block 2 is cylindrical and the temperature measurement bore 21 is a blind bore formed axially from a bottom surface of the cylindrical process temperature test block 2. The process temperature test block 2 is cylindrical and is suitable for cylindrical parts.
In one particular embodiment, as shown in FIG. 3, the temperature sensing hole 21 is located in the center of the bottom surface at a depth of half the height of the cylindrical process temperature test block 2, and the diameter of the temperature sensing hole 21 is equal to the diameter of the thermocouple 3.
The diameter of the temperature measuring hole 21 is equal to that of the thermocouple 3, and after the thermocouple 3 is inserted into the temperature measuring hole 21, the measuring result can be closer to the actual temperature of the part, and the detection result is more accurate.
In a particular embodiment, as shown in fig. 2, a cylindrical process temperature test block 2 is vertically fixed to the support frame 1 such that the temperature measuring hole 21 is located at the top of the cylindrical process temperature test block 2.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A heat treatment device for a tap drill of a surgical instrument with a large length-diameter ratio is characterized in that: including carriage (1), screw tap drill bit (8) are through the inside of carriage (1) vertical placement in furnace chamber (9), be equipped with one row at least suspension rod (11), every on carriage (1) be equipped with a plurality of detachable clip (12) on suspension rod (11), clip (12) are used for cliping the one end of screw tap drill bit (8), make screw tap drill bit (8) hang the inside of perpendicular to furnace chamber (9).
2. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 1, wherein: the top and the periphery of the supporting frame (1) keep a certain distance with the inner wall of the furnace chamber (9).
3. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 1, wherein: the device also comprises a furnace temperature uniformity detection device used for detecting the temperature uniformity in the furnace.
4. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 3, wherein: the furnace temperature uniformity detection device comprises a plurality of process temperature test blocks (2), a plurality of thermocouples (3) and a multi-channel temperature recorder (4), wherein the process temperature test blocks (2) are fixed at different positions of a support frame (1) and used for collecting temperatures of different areas in the furnace, temperature measurement holes (21) are formed in the process temperature test blocks (2), one ends of the thermocouples (3) are inserted into the temperature measurement holes (21) to measure the internal temperature of the process temperature test blocks (2), the other ends of the thermocouples are connected with the multi-channel temperature recorder (4), and the internal temperature of the process temperature test blocks (2) is displayed through the multi-channel temperature recorder (4).
5. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 4, wherein: the supporting frame (1) is of a cuboid structure, the process temperature testing blocks (2) are five, one of the five blocks is arranged at the geometric center of the cuboid, and the other four blocks are respectively arranged on four non-adjacent vertexes of the cuboid.
6. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 4, wherein: the temperature measuring hole (21) is a blind hole, the bottom of the blind hole is positioned at the geometric center of the process temperature measuring block (2), and one end of the thermocouple (3) is inserted into and fixed at the bottom of the blind hole.
7. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 6, wherein: the process temperature testing block (2) is cylindrical, and the temperature measuring hole (21) is a blind hole formed in the cylindrical process temperature testing block (2) along the axial direction from one bottom surface.
8. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 7, wherein: the temperature measuring hole (21) is positioned in the center of the bottom surface, the depth of the temperature measuring hole is half of the height of the cylindrical process temperature measuring block (2), and the diameter of the temperature measuring hole (21) is equal to that of the thermocouple (3).
9. The thermal management apparatus for a large aspect ratio surgical instrument tap bit according to claim 7, wherein: the cylindrical process temperature testing block (2) is vertically fixed on the supporting frame (1), and the temperature measuring hole (21) is located at the top of the cylindrical process temperature testing block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022985784.1U CN214032623U (en) | 2020-12-10 | 2020-12-10 | Thermal treatment device for screw tap drill of surgical operation instrument with large length-diameter ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022985784.1U CN214032623U (en) | 2020-12-10 | 2020-12-10 | Thermal treatment device for screw tap drill of surgical operation instrument with large length-diameter ratio |
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| Publication Number | Publication Date |
|---|---|
| CN214032623U true CN214032623U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022985784.1U Active CN214032623U (en) | 2020-12-10 | 2020-12-10 | Thermal treatment device for screw tap drill of surgical operation instrument with large length-diameter ratio |
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| CN (1) | CN214032623U (en) |
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- 2020-12-10 CN CN202022985784.1U patent/CN214032623U/en active Active
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