CN219037836U - Inspection tool for heating rod - Google Patents
Inspection tool for heating rod Download PDFInfo
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- CN219037836U CN219037836U CN202223468731.8U CN202223468731U CN219037836U CN 219037836 U CN219037836 U CN 219037836U CN 202223468731 U CN202223468731 U CN 202223468731U CN 219037836 U CN219037836 U CN 219037836U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model relates to the technical field of heating rod detection, in particular to a detection tool for a heating rod. The utility model provides an inspection tool for a heating rod, which comprises an inspection block, wherein one surface of the inspection block is a detection surface; at least one group of inspection holes are formed in the detection surface; a set of said inspection holes comprising a first through hole and a second through hole; the diameter of the first through hole is equal to the maximum diameter allowed by the heating rod, the diameter of the second through hole is equal to the minimum diameter allowed by the heating rod, and the depth of the first through hole and the depth of the second through hole are both larger than the length of the heating rod. The inspection block is any one of a rectangular block, a cylinder and a regular polygon. Whether the overall size of the heating rod is qualified can be detected, whether the overall outer diameter of the heating rod can meet the requirement or not can be judged through direct insertion, whether the use is influenced or not can be judged, and the detection process is simple and efficient.
Description
Technical Field
The utility model relates to the technical field of heating rod detection, in particular to a detection tool for a heating rod.
Background
The heating rod is a component which is frequently used in the industries of thermal fluid mechanical equipment, molds, semiconductors and the like, and particularly, a cylindrical heating rod is required to be installed for heating a plurality of equipment products. The size of the heating rod, particularly the size of the customized heating rod is usually determined whether the outer diameter size is qualified by a checker by measuring a plurality of positions along the axis direction of the heating rod, but because of the limitation of the detection of the vernier caliper, the diameter measurement can be selectively carried out on a plurality of positions of the heating rod, and the cylindricity of the whole heating rod can not be measured.
Because of inaccurate measurement results, the heating rod is not inserted into the part hole, especially, the longer heating rod can be inserted into a part and cannot be fully installed, so that parts of customers are required to be reamed, or the heating rod is reworked to repair a small diameter to solve the problem;
when the outer diameter of the heating rod is trimmed by the lathe grinder, if the trimming of the heating rod is carelessly performed, the gap between the heating rod and the hole wall is too large when the heating rod is used, so that the contact area is reduced, and the heating effect is affected.
Disclosure of Invention
The utility model solves the problems that: the existing inspection personnel use vernier calipers to measure a plurality of positions along the axis direction of the heating rod to judge whether the outer diameter size is qualified, but because of the limitation of the vernier calipers in detection, only the diameter measurement can be selectively carried out on a plurality of positions of the heating rod, and the cylindricity of the whole heating rod cannot be measured.
(II) technical scheme
The inspection tool for the heating rod comprises an inspection block, wherein one surface of the inspection block is a detection surface;
at least one group of inspection holes are formed in the detection surface;
a set of said inspection holes comprising a first through hole and a second through hole;
the diameter of the first through hole is equal to the maximum diameter allowed by the heating rod, and the diameter of the second through hole is equal to the minimum diameter allowed by the heating rod;
the depth of the first through hole and the depth of the second through hole are both larger than the length of the heating rod.
According to one embodiment of the utility model, the inspection block is any one of a rectangular block, a cylinder and a regular polygon.
According to one embodiment of the utility model, the inspection tool further comprises a handle connected to the inspection block.
According to one embodiment of the utility model, the inspection block is rectangular, the first through hole and the second through hole are formed along the length direction of the inspection block, and the handle is mounted on the upper surface of the inspection block.
According to one embodiment of the utility model, at least two screw holes are formed in the upper surface of the inspection block, fixing pieces are arranged on the lower surfaces of the two ends of the handle, and round holes for screws to pass through are formed in the fixing pieces.
According to one embodiment of the utility model, at least a first mark and a second mark are arranged on the detection surface, the first mark is close to the first through hole, and the second mark is close to the second through hole.
According to one embodiment of the utility model, the inspection holes are provided with three groups, the three groups of inspection holes are arranged at intervals, the circle centers of the first through holes in each group of inspection holes are on the same straight line, and the circle centers of the second through holes in each group of inspection holes are on the same straight line.
According to one embodiment of the utility model, the bottom of the proof mass is provided with a plurality of support blocks.
According to one embodiment of the utility model, the inspection block is provided with a plurality of lightening holes, and the lightening holes are staggered with the three groups of inspection holes.
According to one embodiment of the utility model, the lightening holes are elongated holes and are formed along the length direction of the test block, and the lightening holes penetrate through the test block.
The utility model has the beneficial effects that:
the utility model provides an inspection tool for a heating rod, which comprises the following components: the detection block, one surface of the detection block is a detection surface; at least one group of inspection holes are formed in the detection surface; the set of inspection holes includes a first through hole and a second through hole; the diameter of the first through hole is equal to the maximum diameter allowed by the heating rod, and the diameter of the second through hole is equal to the minimum diameter allowed by the heating rod. The heating rod with the specification and the size being qualified can be wholly inserted into the first through hole and cannot be completely inserted into the second through hole, the heating rod with the specification and the size exceeding the maximum allowable tolerance cannot be inserted into the first through hole and cannot be inserted into the second through hole, and the heating rod with the specification and the size being smaller than the minimum allowable tolerance can be wholly inserted into the first through hole and cannot be inserted into the second through hole.
Therefore, whether the whole size of the heating rod is qualified or not can be detected, the vernier caliper is not used for measurement, whether the whole outer diameter of the heating rod can meet the requirement or not can be judged by direct insertion, the detection process is simple and efficient, and the problem that the part of a customer must be reamed or the heating rod is reworked to repair a small diameter because the heating rod cannot be inserted into a part hole or can only be partially inserted into the part hole and cannot be completely filled due to inaccuracy of a measurement result when the vernier caliper is used for measurement is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first perspective view of an embodiment of the present utility model;
FIG. 2 is a second perspective view of an embodiment of the present utility model;
fig. 3 is a front view of an inspection tool according to an embodiment of the present utility model.
Icon: 1-a test block; 2-handle; 3-a screw; 4-a first through hole; 5-a second through hole; 6-lightening holes; 7-supporting blocks.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Currently, when measuring a heating rod, an inspector uses a vernier caliper to measure a plurality of positions along the axis direction of the heating rod to judge whether the outer diameter is qualified, for example, the outer diameter is measured once at two ends of the heating rod and then measured several times along the length direction of the heating rod, but because of the limitation of the vernier caliper detection, only the diameter of a plurality of positions of the heating rod can be selectively measured, and the cylindricity of the whole heating rod cannot be measured.
Because of inaccurate measurement results, the axial diameter of the whole heating rod cannot be guaranteed to be within an allowable tolerance, the heating rod and a part hole are often not matched, and particularly, the longer heating rod can be often only partially inserted but cannot be fully assembled, so that parts of customers are required to be reamed, or the heating rod is reworked to be small in diameter to solve the problem.
In order to solve the above problems, as shown in fig. 1-3, an embodiment of the present utility model provides an inspection tool for a heating rod, including an inspection block 1, where one surface of the inspection block 1 is a detection surface;
at least one group of inspection holes are formed in the detection surface;
the set of inspection holes comprises a first through hole 4 and a second through hole 5;
the diameter of the first through hole 4 is equal to the maximum diameter allowed by the heating rod, the diameter of the second through hole 5 is equal to the minimum diameter allowed by the heating rod, and the depth of each of the first through hole 4 and the second through hole 5 is larger than the length of the heating rod.
Therefore, the heating rod with the standard size being qualified can be entirely inserted into the first through hole 4 and cannot be completely inserted into the second through hole 5, the heating rod with the standard size exceeding the maximum allowable tolerance cannot be inserted into the first through hole 4 and cannot be inserted into the second through hole 5, and the heating rod with the standard size being smaller than the minimum allowable tolerance can be entirely inserted into the first through hole 4 and cannot be inserted into the second through hole 5.
In this way, whether the size of the heating rod is qualified or not can be detected rapidly, the vernier caliper is not used for measurement, whether the whole outer diameter of the heating rod can meet the requirement or not can be judged through direct insertion, the detection process is simple and efficient, and the problem that the small diameter of a part must be reamed or reworked by the heating rod is solved because the heating rod is not inserted into a part hole or only a part of the heating rod can be inserted into the part hole and cannot be completely filled when the vernier caliper is used for measurement is avoided.
In this embodiment, as shown in fig. 1, the inspection block 1 is a cuboid, the cross section of the cuboid is rectangular, the first through hole 4 and the second through hole 5 are formed along the length direction of the inspection block 1, specifically, the first through hole 4 and the second through hole 5 are formed from the left side surface of the inspection block 1 towards the right side surface, that is, the left side surface of the inspection block 1 is a detection surface, the first through hole 4 and the second through hole 5 completely penetrate the inspection block 1, on the detection surface, the first through hole 4 is located right above the second through hole 5, and a space of 3-5cm is formed between the first through hole 4 and the second through hole 5, preferably, the space distance is 4cm.
Preferably, all edges and corners of the inspection block 1 are polished and chamfered, sharp edges and corners are removed, and hand scratches are avoided.
Specifically, in this embodiment, as shown in fig. 1, three groups of inspection holes are formed on the inspection surface, the three groups of inspection holes are respectively used for detecting heating rods with three different specifications, the three groups of inspection holes are arranged at intervals, the axes of the first through holes 4 in each group of inspection holes are on the same straight horizontal plane, the axes of the second through holes 5 in each group of inspection holes are on the same horizontal plane, and when the holes are punched, the three first through holes 4 with different sizes are sequentially punched according to the order from small diameter to large diameter, and similarly, the three second through holes 5 with different sizes are sequentially punched according to the order from small diameter to large diameter.
Optionally, each group of inspection holes is provided with a first mark and a second mark on the detection surface, three groups of inspection holes are provided with three first marks and three second marks in total, the three first marks are respectively used for marking three first through holes 4 with different sizes, and the three second marks are respectively used for marking three second through holes 5 with different sizes;
preferably, the three first marks and the three second marks are formed integrally with the inspection block 1, and specifically, the three first marks and the three second marks are formed by directly machining and carving on the inspection surface after punching;
or the three first marks and the three second marks are plastic marks and are adhered to the detection surface through glue;
or the three first marks and the three second marks are stainless steel marks and are welded to the detection surface in a welding mode.
The diameter hole of the inspection block 1 is finished according to the diameter of the heating rod, and is finished according to the maximum diameter size (upper tolerance limit) and the minimum diameter (lower tolerance limit) of the allowable heating rod, and the inner wall of the hole is subjected to grinding, polishing and other treatments, so that the low roughness and cylindricity of the inner wall of the hole are ensured to meet the requirements. Since conventional heating bars are generally classified into user's usual specifications of 1/4 inch, 3/8 inch, and 1/2 inch in diameter.
Thus, of the three sets of inspection holes, the first set of inspection holes is used to detect 1/4 inch heating bars, the second set of inspection holes is used to detect 3/8 inch heating bars, and the third set of inspection holes is used to detect 1/2 inch heating bars.
As shown in fig. 2, on the detection surface, a first group of inspection holes, a second group of inspection holes and a third group of inspection holes are sequentially arranged from left to right;
in the first set of inspection holes, the first label is specifically 1/4MAX representing the maximum diameter dimension allowed for a 1/4 inch heating rod, and the second label is 1/4MIN representing the minimum diameter dimension allowed for a 1/4 inch heating rod;
in the second set of inspection holes, the first label is specifically 3/8MAX representing the maximum diameter dimension allowed for a 3/8 inch heating rod, and the second label is 3/8MIN representing the minimum diameter dimension allowed for a 3/8 inch heating rod;
in the third set of inspection holes, the first label is specifically 1/2MAX representing the maximum diameter dimension allowed for a 1/2 inch heating rod, and the second label is 1/2MIN representing the minimum diameter dimension allowed for a 1/2 inch heating rod;
in this embodiment, as shown in fig. 1, a handle 2 is installed on the upper surface of a test block 1, the handle 2 is a stainless steel handle, specifically, two screw holes are formed on the upper surface of the test block 1, fixing sheets are respectively arranged on the lower surfaces of two ends of the handle 2, and round holes for passing screws 3 are formed on the fixing sheets;
when the handle 2 is installed, the handle 2 is placed on the upper surface of the inspection block 1, the round holes on the fixing plate are aligned with the screw holes on the inspection block 1, then two screws 3 are respectively inserted into the round holes on the fixing plate by using a screwdriver, then the screwdriver is rotated, and the screws are screwed into the screw holes to fix the fixing plate.
Alternatively, the handle 2 may be welded directly to the proof mass 1;
in this embodiment, the material of the inspection block 1 may be high-quality carbon structural steel, carbon tool steel, alloy structural steel, high-speed steel, etc., and since the hardness of the high-quality carbon structural steel, carbon tool steel, alloy structural steel, and high-speed steel after quenching is higher than the hardness of the stainless steel material on the surface of the heating rod, the problem of dimensional error caused by abrasion due to long-term insertion use is avoided. Preferably, the high-quality carbon structural steel material is adopted.
Alternatively, as shown in fig. 1, four lightening holes 6 are formed in the inspection block 1, the lightening holes 6 are staggered from the three groups of inspection holes, the lightening holes 6 are elongated holes, wherein two lightening holes 6 in the middle are positioned between adjacent inspection holes, one lightening hole 6 is positioned at the left side of the first group of inspection holes, and the other lightening hole 6 is positioned at the right side of the third group of inspection holes, namely, the lightening holes 6 are not communicated with the three groups of inspection holes.
It should be noted that, the lightening hole 6 is formed along the length direction of the inspection block 1 while penetrating the inspection block 1, and compared with the situation that the inspection block 1 is not penetrated, the lightening hole 6 is penetrated, so that dust on the upper surface of the inspection block 1 cannot accumulate in the lightening hole 6 after penetrating the lightening hole 6, and the weight of the inspection block 1 is heavier and inconvenient to carry because the whole inspection block 1 is made of high-quality carbon structural steel, therefore, the lightening hole 6 is designed for lightening the weight of the inspection block 1 and bringing convenience to carry.
Preferably, as shown in fig. 2, four supporting blocks 7 are installed at the bottom of the lower surface of the inspection block 1, the four supporting blocks 7 are respectively close to four corners of the bottom of the inspection block 1, and the supporting blocks 7 are round table blocks and play a role in supporting the inspection block 1.
When the inspection tool is used for detecting the heating rod, the specific steps are as follows:
the detection principle of the heating rod of the other two sizes is the same by taking the heating rod of 3/8 inch as an example, so that the detection principle is not described one by one.
Step 1: inserting the heating rod into the corresponding 3/8MAX hole above, completely inserting the heating rod, and then inserting the heating rod into the corresponding 3/8MIN hole below but not inserting the heating rod, wherein the size of the heating rod is considered to be qualified;
step 2: when the heating rod with the nominal diameter of 3/8 inch is inspected, the heating rod is inserted into the corresponding 3/8MAX hole above, and the heating rod cannot be completely inserted, so that the heating rod is considered to be large in size and unqualified.
Step 3: when the heating rod with the nominal diameter of 3/8 inch is checked, the heating rod is inserted into the corresponding 3/8MIN hole below, and the heating rod can be completely inserted, so that the size of the heating rod is considered to be smaller and is not qualified.
Therefore, whether the heating rod is qualified in size can be simply and efficiently judged.
As a specific embodiment, unlike the above embodiment, the inspection block 1 is a cylinder, three groups of inspection holes are all opened from one circular surface of the cylinder toward the other circular surface, one circular surface of the cylinder is a detection surface, the three groups of inspection holes are not arranged transversely any more, but are arranged vertically, that is, three groups of inspection holes are opened on the detection surface according to the direction from top to bottom, on the detection surface, first marks are arranged beside the first through holes 4 of each group of inspection holes, second marks are arranged beside the second through holes of each group of inspection holes, and the handle 2 is welded on the side surface of the cylinder.
As a specific embodiment, in this embodiment, the inspection block 1 is a cuboid, but the cross section of the cuboid is square, the square surface of the cuboid is a detection surface, the three groups of inspection holes are not arranged transversely any more, that is, the three groups of inspection holes are arranged vertically on the detection surface according to the direction from top to bottom, the first through hole 4 and the second through hole 5 of each group of inspection holes are provided with the first mark and the second mark, and the handle 2 is welded on the upper surface of the cuboid.
As a specific embodiment, in this embodiment, the inspection block 1 is a quadrangular prism, the cross section of the quadrangular prism is an isosceles trapezoid, the inspection surface is one end surface of the quadrangular prism, that is, the inspection surface is located on one isosceles trapezoid surface, three groups of inspection holes are formed in the inspection surface according to the direction from top to bottom, and the first identifier and the second identifier are also disposed beside the first through hole 4 and the second through hole 5 of each group of inspection holes, and the handle 2 is mounted on the upper surface of the quadrangular prism.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The inspection tool for the heating rod is characterized by comprising an inspection block (1), wherein one surface of the inspection block (1) is a detection surface;
at least one group of inspection holes are formed in the detection surface;
the group of inspection holes comprises a first through hole (4) and a second through hole (5);
the diameter of the first through hole (4) is equal to the maximum diameter allowed by the heating rod, and the diameter of the second through hole (5) is equal to the minimum diameter allowed by the heating rod;
the depth of the first through hole (4) and the depth of the second through hole (5) are both larger than the length of the heating rod.
2. The inspection tool for the heating rod according to claim 1, wherein the inspection block (1) is any one of a rectangular block, a cylinder and a regular polygon.
3. The tool according to claim 1, further comprising a handle (2), said handle (2) being connected to said test block (1).
4. A tool for inspecting a heating rod according to claim 3, wherein the inspection block (1) is rectangular, the first through hole (4) and the second through hole (5) are formed along the length direction of the inspection block (1), and the handle (2) is mounted on the upper surface of the inspection block (1).
5. The inspection tool for the heating rod according to claim 4, wherein at least two screw holes are formed in the upper surface of the inspection block (1), fixing pieces are arranged on the lower surfaces of the two ends of the handle (2), and round holes for the screws (3) to pass through are formed in the fixing pieces.
6. An inspection tool for heating rods according to any one of claims 1-5, characterized in that at least a first and a second mark are provided on the inspection surface, the first mark being close to the first through hole (4) and the second mark being close to the second through hole (5).
7. The inspection tool for heating rods according to claim 5, wherein three groups of inspection holes are arranged at intervals, the centers of the first through holes (4) in each group of inspection holes are on the same straight line, and the centers of the second through holes (5) in each group of inspection holes are on the same straight line.
8. The inspection tool for heating rods according to claim 7, wherein a plurality of support blocks (7) are mounted at the bottom of the inspection block (1).
9. The inspection tool for the heating rod according to claim 8, wherein a plurality of lightening holes (6) are formed in the inspection block (1), and the lightening holes (6) are staggered with the three groups of inspection holes.
10. The inspection tool for the heating rod according to claim 9, wherein the lightening hole (6) is a strip hole, the lightening hole (6) is formed along the length direction of the inspection block (1), and the lightening hole (6) penetrates through the inspection block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223468731.8U CN219037836U (en) | 2022-12-23 | 2022-12-23 | Inspection tool for heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223468731.8U CN219037836U (en) | 2022-12-23 | 2022-12-23 | Inspection tool for heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219037836U true CN219037836U (en) | 2023-05-16 |
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ID=86273638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223468731.8U Active CN219037836U (en) | 2022-12-23 | 2022-12-23 | Inspection tool for heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219037836U (en) |
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2022
- 2022-12-23 CN CN202223468731.8U patent/CN219037836U/en active Active
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