CN202527752U - Drill jig - Google Patents
Drill jig Download PDFInfo
- Publication number
- CN202527752U CN202527752U CN 201220193882 CN201220193882U CN202527752U CN 202527752 U CN202527752 U CN 202527752U CN 201220193882 CN201220193882 CN 201220193882 CN 201220193882 U CN201220193882 U CN 201220193882U CN 202527752 U CN202527752 U CN 202527752U
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- CN
- China
- Prior art keywords
- drill jig
- bushing plate
- utility
- model
- drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Drilling And Boring (AREA)
Abstract
The utility model provides a drill jig, comprising a drill plate, wherein the drill plate is provided with four locating holes with same sizes, and the lines among the hole centers of the four locating holes form a square. The drill jig effectively improves the machining precision and the manufacturing efficiency of a drill hole.
Description
Technical field
The utility model relates to the bore process technical field, in particular to a kind of drill jig.
Background technology
Heat exchanger tube sheet drilling accuracy and efficient are the most important links of restriction heat exchanger workmanship and production efficiency, are restriction heat exchanger manufacturer's bottleneck for many years always.
The reason of restriction drilling of tubesheet precision is the inaccurate and swing of drill bit in process in drill bit location.Adopt the tube sheet drill jig can effectively solve the borehole accuracy problem.
The reason of restriction tube sheet working (machining) efficiency is following:
One, the operation that before boring, has twice manually to accomplish by operating personnel:
(1), on tube sheet, rules according to drawing by operating personnel;
(2), operating personnel dash the location with appearance on tube sheet.
Because operating personnel's experience is limit or the labour intensity problem influences line and alignment quality easily.
Two, be owing in boring procedure, need also can directly not cause boring that deviation is not arranged if aim at very carefully with the top alignment appearance punch mark of drill bit.
The utility model content
The utility model aims to provide a kind of machining accuracy of effective raising boring and makes the drill jig of efficient.
To achieve these goals, the utility model provides a kind of drill jig, comprising: bushing plate, have four measure-alike locating holes on the bushing plate, and the hole heart line of four locating holes surrounds square.
Further, bushing plate is square.
Further, place, four of bushing plate angles has chamfering.
Further, the line between the hole heart of adjacent two locating holes is parallel with the edge of bushing plate.
Further, the thickness of bushing plate is 20mm.
In the technical scheme of the utility model, drill jig comprises: bushing plate, have four measure-alike locating holes on the bushing plate, and the hole heart line of four locating holes surrounds square.
When the drill jig of use the utility model is holed, need to cooperate two securing members to operate simultaneously.Particularly; Earlier use method of the prior art and get out two pores by operating personnel; Then two locating holes on the bushing plate are aimed at two pores that bored, utilize securing member that bushing plate and heat exchanger tube sheet are linked together, carry out the boring of tube sheet through two other locating hole location; After boring well, move bushing plate and continue boring until completion.Adopt the drill jig of the utility model only need utilize prior art to carry out the location of preceding two pores; Just can position afterwards through locating hole; Operating personnel's line and the operation of appearance in the prior art have been omitted towards the location; Greatly improved manufacturing efficient, in addition, omitted above-mentioned two operations of manually accomplishing and also be beneficial to the raising machining accuracy.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 shows the structural representation according to the embodiment of the drill jig of the utility model.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Requirement according to 5.6.3.1 stringing among design of heat exchanger and the manufacturing standard GB151-1999; The spread pattern of heat exchanger tube is by in 4: equilateral triangle arrangement, the arrangement of corner equilateral triangle, square arrangement, corner square arrangement; In fact conclude; Can be merged into two kinds: promptly equilateral triangle is arranged and square arrangement, and the drill jig of the utility model is applicable to square arrangement.
As shown in Figure 1, comprise according to the embodiment of the drill jig of the utility model: bushing plate 10, the hole heart line that has 11, four locating holes 11 of four measure-alike locating holes on the bushing plate 10 surrounds square.
When the drill jig of use present embodiment is holed, need to cooperate two securing members to operate simultaneously.Particularly; Earlier use method of the prior art and get out two pores by operating personnel; Then two locating holes 11 on the bushing plate 10 are aimed at two pores that bored, utilize fastener bolt and nut etc. that bushing plate 10 and heat exchanger tube sheet are linked together, carry out the boring of tube sheet through two other locating hole location; After boring well, move bushing plate 10 and continue boring until completion.Adopt the drill jig of present embodiment only need utilize prior art to carry out the location of preceding two pores; Just can position afterwards through locating hole 11; Operating personnel's line and the operation of appearance in the prior art have been omitted towards the location; Greatly improved manufacturing efficient, in addition, omitted above-mentioned two operations of manually accomplishing and also be beneficial to the raising machining accuracy.
As shown in Figure 1, bushing plate 10 is square.Further preferably, place, four of bushing plate 10 angles has chamfering.
Use for ease, the line between the hole heart of adjacent two borings 11 is parallel with the edge of bushing plate 10.
The thickness of bushing plate 10 is preferably 20mm.
For square arrangement, pore diameter commonly used is six kinds of 19mm, 20mm, 22mm, 25mm, 30mm, 32mm, and corresponding pitch of holes is six kinds of 25mm, 26mm, 28mm, 32mm, 38mm, 40mm.Use for ease, can make the drill jig of six sizes according to the pore diameter of correspondence with corresponding pitch of holes respectively,, like this, greatly improved manufacturing efficient to form the drill bushing series of tube sheet square arrangement commonly used.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. a drill jig is characterized in that, comprising: bushing plate (10), have four measure-alike locating holes (11) on the said bushing plate (10), and the hole heart line of said four locating holes (11) surrounds square.
2. drill jig according to claim 1 is characterized in that, said bushing plate (10) is square.
3. drill jig according to claim 2 is characterized in that, the place, four angles of said bushing plate (10) has chamfering.
4. drill jig according to claim 2 is characterized in that, the line between the hole heart of adjacent two said locating holes (11) is parallel with the edge of said bushing plate (10).
5. drill jig according to claim 1 is characterized in that, the thickness of said bushing plate (10) is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193882 CN202527752U (en) | 2012-04-28 | 2012-04-28 | Drill jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193882 CN202527752U (en) | 2012-04-28 | 2012-04-28 | Drill jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202527752U true CN202527752U (en) | 2012-11-14 |
Family
ID=47128960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220193882 Expired - Lifetime CN202527752U (en) | 2012-04-28 | 2012-04-28 | Drill jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202527752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070208A (en) * | 2013-03-25 | 2014-10-01 | 国家电网公司 | A bus punching positioning device |
-
2012
- 2012-04-28 CN CN 201220193882 patent/CN202527752U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070208A (en) * | 2013-03-25 | 2014-10-01 | 国家电网公司 | A bus punching positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |