阅读说明：本技术 套管式散热器芯子组件钻模及钻孔方法 (Bushing type radiator core subassembly drill jig and drilling method ) 是由 孙德明 黄志勇 郭文平 容涛 于 2021-09-24 设计创作，主要内容包括：本发明提供了一种套管式散热器芯子组件钻模及钻孔方法,钻模包括定位板、钻模套、锁紧螺钉、大定位圆柱销、小定位圆柱销、大检验插销和小检验插销。钻孔时以套管式散热器芯子组件两个自由端圆柱形内腔的轴线间距作为钻模的定位基准,从而确定钻模上的钻模孔相对套管式散热器芯子组件的空间位置；先通过钻模在套管式散热器芯子组件上钻一个孔,并以该孔作为剩余孔的定位基准孔和限位孔,然后通过钻模在套管式散热器芯子组件上加工剩余的孔。本发明的钻模结构简单,操作便利,兼备定位、限位、钻孔和检测功能,钻孔方法能够确保钻孔质量的一致性,满足性能需求。(The invention provides a drill jig of a sleeve type radiator core subassembly and a drilling method. During drilling, the axial distance between two cylindrical inner cavities at the free ends of the sleeve type radiator core subassembly is used as a positioning reference of a drill jig, so that the spatial position of a drill jig hole on the drill jig relative to the sleeve type radiator core subassembly is determined; firstly, drilling a hole on the sleeve type heat radiator core subassembly through a drill jig, taking the hole as a positioning datum hole and a limiting hole of the residual hole, and then processing the residual hole on the sleeve type heat radiator core subassembly through the drill jig. The drill jig disclosed by the invention is simple in structure and convenient to operate, has the functions of positioning, limiting, drilling and detecting, and the drilling method can ensure the consistency of the drilling quality and meet the performance requirements.)

1. Bushing type radiator core subassembly jig, bushing type radiator core subassembly is the U-shaped bending type, and two free ends of bushing type radiator core subassembly are cylindrical inner chamber, and one of them free end surface has the through hole of a plurality of different aperture sizes, its characterized in that: the drill jig comprises a drill plate, a drill rod,

the positioning plate (1) comprises a base plate, the length of the base plate is larger than the distance between the central axes of the cylindrical inner cavities at two free ends of the sleeve type heat radiator core assembly, one end of the base plate is provided with a positioning bulge, and the other end of the base plate is provided with positioning holes with different apertures;

the drill jig sleeve (2) is detachably connected with the positioning plate (1) through the positioning hole, the inner diameter of the drill jig sleeve (2) is larger than or equal to the outer diameter of the free end of the sleeve type heat radiator core component with the through hole, and the drill jig sleeve (2) is provided with a locking hole, a positioning pin hole and drill holes with different hole diameters;

the locking screw (3), the said locking screw (3) is connected with locking hole removably;

the positioning cylindrical pin comprises a large positioning cylindrical pin (4) and a small positioning cylindrical pin (5) with different outer diameters, and the large positioning cylindrical pin (4) and the small positioning cylindrical pin (5) are respectively spliced with positioning holes with different apertures on the substrate and positioning pin holes on the drill die sleeve (2);

the inspection bolt comprises a large inspection bolt (6) and a small inspection bolt (7) which are different in outer diameter, wherein the large inspection bolt (6) and the small inspection bolt (7) are respectively inserted into drill holes with different aperture sizes.

2. The tube-in-tube heat sink core subassembly jig of claim 1, wherein:

the positioning bulge comprises a first positioning cylindrical surface, and the outer diameter of the first positioning cylindrical surface is less than or equal to the inner diameter of a cylindrical inner cavity of a free end of the surface of the sleeve type heat radiator core assembly without a through hole;

the number of the positioning holes is two, the central connecting line of the two positioning holes is intersected with the axis of the first positioning cylindrical surface, and the vertical distance from the midpoint of the central connecting line of the two positioning holes to the central axis of the first positioning cylindrical surface is equal to the distance between the central axes of the two free-end cylindrical inner cavities of the sleeve type radiator core assembly.

3. The tube-in-tube heat sink core subassembly jig of claim 1, wherein: the drill jig sleeve (2) is cylindrical and comprises a first cylindrical surface and a second cylindrical surface, a drill hole is formed in the first cylindrical surface, a locking hole is formed in the second cylindrical surface, and a positioning pin hole is formed in the bottom surface of the drill jig sleeve (2).

4. The tube-in-tube heat sink core subassembly jig of claim 3, wherein: the number of the drill holes on the first cylindrical surface and the included angle between the drill holes are completely consistent with the number of the through holes on the free end surface of the sleeve type heat radiator core assembly and the included angle between the through holes.

5. The tube-in-tube heat sink core subassembly jig of claim 3, wherein: the locking holes on the second cylindrical surface are multiple and are uniformly distributed on the second cylindrical surface at equal included angles.

6. The tube-in-tube heat sink core subassembly jig of claim 1, wherein: one end of the drill die sleeve (2) is provided with a first chamfer.

7. The tube-in-tube heat sink core subassembly jig of claim 1, wherein: and one end of the positioning bulge is provided with a second chamfer.

8. The tube-in-tube heat sink core subassembly jig of claim 1, wherein: and the surfaces of the locking screw (3), the large checking bolt (6) and the small checking bolt (7) are provided with knurls.

9. The utility model provides a bushing type radiator core subassembly drilling method, bushing type radiator core subassembly is the U-shaped bending, and two free ends of bushing type radiator core subassembly are cylindrical inner chamber, and one of them free end surface has a plurality of through holes of different aperture sizes, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the axial distance between two free-end cylindrical inner cavities of the sleeve type radiator core subassembly is used as a positioning reference of a drill jig, so that the spatial position of a drill jig hole on the drill jig relative to the sleeve type radiator core subassembly is determined;

when drilling, firstly, drilling a hole on the sleeve type heat radiator core subassembly through a drill jig, taking the hole as a positioning reference hole and a limiting hole of the residual hole, and then processing the residual hole on the sleeve type heat radiator core subassembly through the drill jig.

10. A method of drilling a tube-in-tube heat sink core assembly using the jig of claim 1, wherein: comprises the following steps of (a) carrying out,

step one, installing the free end of the sleeve type heat radiator core assembly needing drilling into a drill die sleeve (2);

step two, the sleeve type heat radiator core assembly and the drill die sleeve (2) in the step one are installed on the positioning plate (1) together, the positioning cylindrical pin and the locking screw (3) are inserted, and the relative position of the drill die sleeve (2) and the sleeve type heat radiator core assembly is fixed;

step three, optionally drilling a drill die hole on the drill die sleeve (2), drilling a hole on the sleeve type heat radiator core subassembly, then inserting an inspection plug pin, and simultaneously enabling the inspection plug pin to penetrate through the drill die sleeve (2) and the sleeve type heat radiator core subassembly;

step four, keeping the locking screw (3) and one checking bolt still, disassembling the positioning cylindrical pin, and disassembling the sleeve type heat radiator core subassembly and the drill die sleeve (2) from the positioning plate (1);

step five, drilling the residual holes on the sleeve type radiator core assembly by using the drill die sleeve (2);

and step six, inserting other checking bolts into the drill die sleeve (2) to check whether the position of the drill hole on the sleeve type heat radiator core component meets the requirement.

Technical Field

The invention relates to a drill jig and a drilling method, in particular to a drill jig and a drilling method which ensure that a sleeve type radiator on an airplane meets the temperature control and temperature regulation performance requirement and are used for a core assembly of the sleeve type radiator, are convenient for positioning and processing holes with different apertures on the core assembly, improve the working efficiency and improve the product performance consistency.

Background

The sleeve type radiator is one part of an aircraft environmental control system, a core subassembly in the sleeve type radiator is an important assembly responsible for temperature sensing regulation, the manufacturing quality and the performance consistency of the core subassembly are very important, particularly the consistency of drilling holes on the core subassembly, the integral structure of the core subassembly is similar to a U-shaped bent pipe and is provided with two free ends, the two free ends are connected through a bending section, through holes with different hole diameters are drilled on the surface of one free end, and the problems of hole diameter mixing, hole diameter inconsistency and the like frequently occur in the processing process due to the large number of the through holes.

The existing processing thought adopts a traditional marking and punching point drilling method, namely, after manual marking and punching points, each hole is drilled by hands respectively, the product quality of the processing method is poor, particularly the hole diameter of the drilled hole is easy to be mistaken, the drilling position degree difference of different parts is large during batch production, and the condition that the product is scrapped occurs, and in order to meet the actual production requirement, a set of drilling jig and a method for drilling the sleeve type radiator core subassembly are urgently needed to be designed.

Disclosure of Invention

The invention aims to provide a bushing type radiator core subassembly drill jig and a drilling method, wherein the drill jig has the functions of split, limiting and the like after combined positioning and locking, is convenient for manual drilling processing, and can be used for inspection after drilling.

The invention is realized by the following technical scheme:

the bushing type radiator core subassembly drill jig is bent in a U shape, two free ends of the bushing type radiator core subassembly are cylindrical inner cavities, the surface of one free end is provided with a plurality of through holes with different aperture sizes, the drill jig comprises,

the positioning plate comprises a base plate, the length of the base plate is greater than the distance between the central axes of the cylindrical inner cavities at the two free ends of the sleeve type heat radiator core assembly, one end of the base plate is provided with a positioning bulge, and the other end of the base plate is provided with positioning holes with different apertures;

the drill jig sleeve is detachably connected with the positioning plate through the positioning hole, the inner diameter of the drill jig sleeve is larger than or equal to the outer diameter of the free end of the sleeve type radiator core subassembly with the through hole, and the drill jig sleeve is provided with a locking hole, a positioning pin hole and drill holes with different hole diameters;

the locking screw is detachably connected with the locking hole;

the positioning cylindrical pin comprises a large positioning cylindrical pin and a small positioning cylindrical pin with different outer diameters, and the large positioning cylindrical pin and the small positioning cylindrical pin are respectively spliced with positioning holes with different apertures on the substrate and positioning pin holes on the drill jig sleeve;

the inspection bolt comprises a large inspection bolt and a small inspection bolt with different outer diameters, and the large inspection bolt and the small inspection bolt are respectively inserted into the drill holes with different aperture sizes.

Alternatively, the positioning protrusion comprises a first positioning cylindrical surface, and the outer diameter of the first positioning cylindrical surface is smaller than or equal to the inner diameter of a cylindrical inner cavity of a free end of the surface of the sleeve type heat radiator core assembly without a through hole;

the number of the positioning holes is two, the central connecting line of the two positioning holes is intersected with the axis of the first positioning cylindrical surface, and the vertical distance from the midpoint of the central connecting line of the two positioning holes to the central axis of the first positioning cylindrical surface is equal to the distance between the central axes of the two free-end cylindrical inner cavities of the sleeve type radiator core assembly.

As an option, the drill jig sleeve is cylindrical and comprises a first cylindrical surface and a second cylindrical surface, a drill hole is formed in the first cylindrical surface, a locking hole is formed in the second cylindrical surface, and a positioning pin hole is formed in the bottom surface of the drill jig sleeve.

Alternatively, the number of the drill holes and the included angle between the drill holes on the first cylindrical surface are completely consistent with the number of the through holes on the free end surface of the sleeve type heat radiator core assembly and the included angle between the through holes.

Alternatively, a plurality of locking holes are formed in the second cylindrical surface, and the locking holes are uniformly distributed on the second cylindrical surface at equal included angles.

Alternatively, one end of the drill jig sleeve is provided with a first chamfer.

Alternatively, one end of the positioning protrusion has a second chamfer.

Alternatively, the surfaces of the locking screw, the large checking bolt and the small checking bolt are knurled.

A method for drilling a sleeve type radiator core component, wherein the sleeve type radiator core component is bent in a U shape, two free ends of the sleeve type radiator core component are cylindrical inner cavities, the surface of one free end is provided with a plurality of through holes with different aperture sizes, the method for drilling the hole comprises the following steps,

the axial distance between two free-end cylindrical inner cavities of the sleeve type radiator core subassembly is used as a positioning reference of a drill jig, so that the spatial position of a drill jig hole on the drill jig relative to the sleeve type radiator core subassembly is determined;

when drilling, firstly, drilling a hole on the sleeve type heat radiator core subassembly through a drill jig, taking the hole as a positioning reference hole and a limiting hole of the residual hole, and then processing the residual hole on the sleeve type heat radiator core subassembly through the drill jig.

A sleeve type radiator core component drilling method adopting the drill jig comprises the following steps,

step one, installing the free end of the sleeve type heat radiator core assembly needing drilling into a drill die sleeve;

step two, the sleeve type heat radiator core subassembly and the drill jig sleeve in the step one are installed on a positioning plate together, a positioning cylindrical pin and a locking screw are inserted, and the relative position of the drill jig sleeve and the sleeve type heat radiator core subassembly is fixed;

step three, optionally drilling a die hole on the die sleeve, drilling a hole on the sleeve type heat radiator core subassembly, then inserting an inspection plug pin, and simultaneously enabling the inspection plug pin to penetrate through the die sleeve and the sleeve type heat radiator core subassembly;

step four, keeping the locking screw and the check bolt still, disassembling the positioning cylindrical pin, and disassembling the sleeve type heat radiator core assembly and the drill jig sleeve from the positioning plate;

step five, drilling the residual holes on the sleeve type radiator core assembly by using a drill jig sleeve;

and step six, inserting other checking bolts into the drill die sleeve, and checking whether the position of the drill hole on the sleeve type heat radiator core subassembly meets the requirements.

Compared with the prior art, the drill jig and the drilling method have the following characteristics:

1. the bushing type radiator core subassembly drill jig is relatively simple to manufacture, convenient to assemble and disassemble in the using process and capable of reducing the complexity of drilling operation;

2. when the sleeve type radiator core assembly is independently arranged in the drill jig sleeve for drilling, the coordination and the limit are conveniently adjusted;

3. the drill jig has the advantages that the positioning cylindrical pin is matched with the locking screw to press and lock the core subassembly, the relative position relation between the core subassembly and the drill jig sleeve is ensured, the drill jig is simple and compact in structure, and the positioning and clamping operation is convenient and applicable;

4. the bushing type heat radiator core subassembly drill jig is convenient to reset again, has good use effect and reliable and stable quality, and ensures two different drill holes (16-Well and 28-Holes) and the requirements of shape, position and size can meet the performance requirements of the sleeve type radiator;

5. the drill jig of the sleeve type radiator core subassembly not only ensures the smooth delivery of the product with quality, but also creates good economic benefit;

6. according to the drilling method, according to the shape characteristics of the core assembly, the drilling positioning reference is reasonably selected, the spatial positions of the drill die sleeve and the core assembly are accurately positioned, one hole is firstly machined during drilling, then the remaining drill holes are machined by taking the hole as the reference and limiting, and the reference and limiting in the whole process are consistent, so that the consistency of the drilling quality is ensured;

7. the drill jig disclosed by the invention has the functions of positioning, clamping, limiting, drilling, detecting and the like, and the processing efficiency of the sleeve type radiator core assembly is improved.

Drawings

FIG. 1 is a front view of a bushing-type heat sink core subassembly drill jig;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a perspective view of a bushing-type heat sink core subassembly drill jig;

FIG. 5 is a front view of a sleeved heat sink core assembly with product mounted on a jig;

FIG. 6 is a right side view of FIG. 5;

FIG. 7 is a perspective view of FIG. 5;

FIG. 8 is a perspective view of a sleeve heat sink core assembly product;

FIG. 9 is a front view of the positioning plate;

FIG. 10 is a left side view of FIG. 9;

FIG. 11 is a top view of FIG. 9;

FIG. 12 is a cross-sectional view taken along the axis of FIG. 11;

FIG. 13 is a perspective view of FIG. 9;

FIG. 14 is a perspective view and a cross-sectional view of a drill sleeve;

FIG. 15 is a distribution diagram of the drill jig holes in the drill jig housing;

FIG. 16 is a bottom and axial cross-sectional view of the drill sleeve;

FIG. 17 is a detail view of a locking screw;

FIG. 18 is a detail view of a large check bolt;

FIG. 19 is a detail view of a small check pin;

FIG. 20 is a schematic view of the drilling process of the present invention;

in the figure: 1. the device comprises a positioning plate, 2. a drill die sleeve, 3. a locking screw, 4. a large positioning cylindrical pin, 5. a small positioning cylindrical pin, 6. a large inspection bolt and 7. a small inspection bolt.

Detailed Description

The embodiments of the present invention will be further described with reference to the drawings attached to the specification, but the scope of the claims of the present invention is not limited to the contents listed in the examples.

The invention is characterized in that the drill jig has a combined positioning function, the product and the drill jig are separated after positioning and locking, only the product and the drill jig sleeve are combined together, then the manual drill is used for processing, and finally the drill jig is used for inspection.

As shown in fig. 1 to 20, the bushing type heat sink core assembly jig includes: the device comprises a positioning plate 1, a drill jig sleeve 2, a locking screw 3, a large positioning cylindrical pin 4, a small positioning cylindrical pin 5, a large inspection bolt 6 and a small inspection bolt 7. The drill jig of the sleeve type radiator core assembly is schematically shown in figures 1-4; schematic diagrams of the core assembly product mounted on a sleeve type heat sink core assembly jig are shown in fig. 5-8, wherein the components are characterized as follows:

a positioning plate 1 (see fig. 9-13), wherein the positioning plate 1 is an installation underframe of a bushing type radiator core subassembly drill jig, and mainly has the functions of installing a positioning drill jig sleeve 2 subassembly and positioning and adjusting a limiting bushing type radiator core subassembly, one end of the positioning plate 1 in the length direction is a positioning bulge, the surface of the positioning bulge comprises a first positioning cylindrical surface, and the other end of the positioning plate in the length direction is two positioning holes with different hole diameters;

a drill jig sleeve 2 (refer to fig. 14-16), wherein the drill jig sleeve 2 is an integral positioning drill jig component of a bushing type heat radiator core subassembly drill jig, and the main function of the drill jig sleeve is to install a positioning bushing type heat radiator core subassembly and drill through holes in a guiding manner;

a locking screw 3 (see fig. 17), wherein the locking screw 3 is a locking part of the drill jig of the sleeve type heat radiator core subassembly, and the main function of the locking screw presses and locks and limits the core subassembly of the sleeve type heat radiator;

big positioning cylindrical pin 4 (size is) The positioning component is a positioning component of a bushing type radiator core subassembly drill jig, and has the main function of positioning the drill jig sleeve 2 subassembly on the positioning plate 1 in an angular direction to ensure the mutual position relation of the drill jig sleeve 2 and the positioning plate 1;

small positioning cylindrical pin 5 (with the size of) The positioning component is a positioning component of a bushing type radiator core subassembly drill jig, and has the main functions that an angular positioning drill jig sleeve 2 subassembly is arranged on a positioning plate 1, the mutual position relation of the drill jig sleeve 2 and the positioning plate 1 is ensured, the position of the drill jig sleeve 2 on the positioning plate 1 is determined under the combined action of a large positioning cylindrical pin 4 and a small positioning cylindrical pin 5, and the space position positioning of the drill jig sleeve 2 is realized by controlling the distance from the middle point of the connecting line of the large positioning cylindrical pin 4 and the small positioning cylindrical pin 5 to a first positioning cylindrical surface on the positioning plate 1 to be equal to the distance from the axial lines of cylindrical inner cavities at two free ends of the bushing type radiator core subassembly, namely the coaxiality of the drill jig sleeve 2 and the cylindrical inner cavity at the free end to be drilled is realized;

a large inspection pin 6 (see fig. 18), the large inspection pin 6 being an inspection part of the drill jig of the sleeve type heat sink core assembly, the main function of which is to inspect the product sleeve type heat sink core 28The mutual position size relationship of the hole sites;

a small inspection pin 7 (see fig. 19), the small inspection pin 7 being an inspection part of the drill jig of the sleeve type heat sink core subassembly, the main function of which is to inspect the product sleeve type heat sink core 16-The mutual position size relationship of the hole sites.

Referring to fig. 8, the dual-tube heat sink core assembly to be processed according to the present invention is a dual-tube heat sink core assembly, which is bent in a U-shape, and two free ends of the dual-tube heat sink core assembly are cylindrical cavities, wherein one free end surface has a plurality of through holes (16-Well and 28-A hole).

As shown in fig. 1 to 4, the drill jig of the sleeve type radiator core subassembly is composed of a positioning plate 1, a drill jig sleeve 2, a locking screw 3, a large positioning cylindrical pin 4, a small positioning cylindrical pin 5, a large inspection plug pin 6 and a small inspection plug pin 7, and all the components are assembled together according to the following scraping.

1. The drill die sleeve 2 is detachably arranged at one end of the positioning plate 1;

2. the locking screw 3 is inserted into a circumferential hole on the surface of the drill die sleeve 2;

3. a large positioning cylindrical pin 4 is inserted into a positioning hole with a larger aperture at one end of the positioning plate 1, and the drill die sleeve 2 is limited angularly;

4. the small positioning cylindrical pin 5 is inserted into a positioning hole with a smaller aperture at one end of the positioning plate 1, the drill die sleeve 2 is limited in an angular direction, and the large positioning cylindrical pin 4 and the small positioning cylindrical pin 5 are matched to realize the limitation of the drill die sleeve 2;

5. the large inspection plug 6 is used for inspecting the product sleeve type heat radiator core 28The mutual position size relation of the hole sites is inserted into the drill jig holes of the drill jig sleeve 2 after all the holes are processed;

6. the small inspection plug 7 is used for inspecting the product sleeve type radiator core 14The mutual position size relation of the hole sites is inserted into the drill jig holes of the drill jig sleeve 2 after all the holes are processed.

The basic idea of the drilling method is as follows: the method comprises the steps of firstly determining the space position of a drill jig and the free end to be drilled of a sleeve type heat radiator core subassembly, wherein the space between the drill jig and the axis of a cylindrical inner cavity at the two free ends of the sleeve type heat radiator core subassembly is used as a reference, when the distance from the drill jig to the axis of the cylindrical inner cavity at the other free end is equal to the reference distance, the space position of the drill jig is determined, then the position relation is kept, one drill jig hole in the drill jig is selected to drill a hole on the sleeve type heat radiator core subassembly, the hole is used as a positioning reference hole and a limiting hole, and the rest hole positions are machined.

As shown in fig. 20, the method of drilling the bushing type heat sink core assembly using the aforementioned jig is as follows:

firstly, detaching the drill jig sleeve 2 from a drill jig, and installing the sleeve type radiator core subassembly into the drill jig sleeve 2;

secondly, the sleeve type radiator core assembly and the drill jig sleeve 2 are installed on the positioning plate 1 together for coordinated positioning, and are preliminarily pressed and limited by the locking screw 3;

thirdly, manually drilling a hole(or) A small checking bolt 7 (or a large checking bolt 6) is used for inserting, positioning and limiting;

fourthly, the sleeve type radiator core component and the drill jig sleeve 2 are dismounted from the positioning plate 1 together;

fifthly, drilling 16-shaped fins on the product sleeve type radiator core component by using the drill mold sleeve 2Well and 28- An aperture;

the sixth step, utilizing the large check pin 6 and the small check pin 7 to detect the products 16-Well and 28-Whether the mutual positions of the drill jig sleeve and the drill jig sleeve meet the requirements of the relation form and position size on the drill jig sleeve 2 or not; and unloading the product after drilling from the drill jig sleeve 2, and cleaning and checking.

The above embodiments are not intended to limit the scope of the present invention, and any variations, modifications, or equivalent substitutions made on the technical solutions of the present invention should fall within the scope of the present invention.