CN202702160U - Broken screw tap picking device - Google Patents
Broken screw tap picking device Download PDFInfo
- Publication number
- CN202702160U CN202702160U CN 201220257918 CN201220257918U CN202702160U CN 202702160 U CN202702160 U CN 202702160U CN 201220257918 CN201220257918 CN 201220257918 CN 201220257918 U CN201220257918 U CN 201220257918U CN 202702160 U CN202702160 U CN 202702160U
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- CN
- China
- Prior art keywords
- screw tap
- wire drawing
- insertion hole
- hole
- hole groups
- 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 - Fee Related
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Abstract
The utility model discloses a broken screw tap picking device. The broken screw tap picking device is characterized by comprising a spanner (1), a first hole-inserting group (2) and a second hole-inserting hole group (3) are arranged on the spanner (1), holes of the first hole-inserting group (2) are connected to be a square shape, holes of the second hole-inserting hole group (3) are connected to be an equilateral triangle shape, wire drawing rods (4) are arranged on the first hole-inserting group (2) and the second hole-inserting hole group (3) in matching mode, and an effective wire drawing part (5) of the wire drawing rods (4) is matched with the shape of grooves (6) of screw taps. The broken screw tap picking device is a tool which is simple in structure, ingenious in design, convenient and fast to operate, and capable of picking broken screw taps without physical damage of the screw taps and holes.
Description
Technical field
The utility model relates to a kind of machinery industry aid, particularly a kind of fracture screw tap fetching tool.
Background technology
Screw tap is the conventional tool of processing column shape and conical internal thread.Tapping belongs to the relatively manufacturing procedure of difficulty, because almost needing all to be embedded in the workpiece, cuts by screw tap, the machining load of its per tooth is all larger than other cutter, and screw tap is very large along screw thread and workpiece contact-making surface, can say that the working environment of screw tap is very abominable.Screw tap must hold and get rid of smear metal when screw cutting, therefore screw tap axially be provided with groove, these grooves might be to be three of triangular arranged, also may be to be four of square arrangement, the shape of groove may be straight line simultaneously, also might be curve.And in the process of tapping, in case the screw tap fracture is stayed the fracture screw tap that inside workpiece divides and just can't be taken out, can only be that the screw tap that breaks in the hole is smashed, perhaps with electric welding the hole is piled up.These two kinds of methods all might cause to a certain degree destruction to the hole that processes, in case this situation occurs, also need to strengthen, reaming, carry out again tapping, and very trouble has seriously influenced operating efficiency.Now also there is not the special-purpose fetching tool of a kind of fracture screw tap that can address the above problem.
Summary of the invention
The utility model is in order to solve the existing above-mentioned deficiency of prior art, propose a kind of simple in structure, design ingenious, easy to operate, quick, the instrument that can be under the prerequisite of screw tap and hole not being carried out physical damage the screw tap of fracture be taken out.
Technical solution of the present utility model is: a kind of fracture screw tap fetching tool, it is characterized in that: described fracture screw tap fetching tool comprises a spanner 1, offer the first insertion hole groups 2 and the second insertion hole groups 3 at spanner 1, each hole link group quadrate of one group of insertion hole groups 2, each hole line of the second insertion hole groups 3 forms equilateral triangle, be provided with hot candied bar 4 with the first insertion hole groups 2 and the second insertion hole groups 3 match, and groove 6 shapes of effective wire drawing part 5 of fixing hot candied bar 4 and screw tap match.
Effective wire drawing part 5 of described hot candied bar 4 is linear.
Effective wire drawing part 5 of described wire drawing bar 4 is shaped form.
Be provided with correcting sheet 7 with described wire drawing bar 4 also matches, the end of correcting sheet 7 offers the correction hole 8 that the projection with the second insertion hole groups 3 matches.
The utility model is compared with prior art, has following advantage:
The fracture screw tap fetching tool of this kind of version, it is simple in structure, design ingenious, if it is for screw tap fracture in tapping process, can't be in the technological deficiency of not carrying out taking out under the prerequisite of physical damage, design a cover flexibly, conveniently, and be applicable to the structure of multiple different size screw tap, it can be in situation about fracture screw tap, workpiece to be machined not being destroyed, the take screw tap of three or four grooves, but also the groove of can taking is the screw tap of curve, and the scope of application is comparatively extensive.And the manufacture craft of this instrument is simple, and is cheap for manufacturing cost, therefore can say that it has possessed multiple advantage, is particularly suitable for applying in the art, and its market prospects are very wide.
Description of drawings
Fig. 1 is the top view of the utility model embodiment spanner part.
Fig. 2 is the schematic diagram of the utility model embodiment wire drawing bar embodiment one.
Fig. 3 is the schematic diagram of the utility model embodiment wire drawing bar embodiment two.
Fig. 4 is the schematic diagram of the utility model embodiment correcting sheet.
Fig. 5 is the schematic diagram of the applied three kinds of multi-form screw taps of the utility model embodiment.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model.Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5: a kind of fracture screw tap fetching tool, it comprises the spanner 1 of a strip, offer the first insertion hole groups 2 and the second insertion hole groups 3 at spanner 1, wherein the first insertion hole groups 2 has four jacks, and the line of these four jacks forms a square; The second insertion hole groups 3 has three jacks, and the line of these three jacks forms an equilateral triangle; Be provided with wire drawing bar 4 with the jack of these two insertion hole groups matches, the top of wire drawing bar 4 can after be plugged in the jack, effective wire drawing part 5 is formed at the bottom, and effectively the shape of wire drawing part 5 is mutually identical with groove 6 shapes of screw tap.Because the groove 6 of screw tap has linear and two kinds of forms of shaped form, therefore effectively the shape of wire drawing part 5 also is divided into two kinds of linear and shaped forms according to the shape of groove 6.For convenient in when work, be provided with correcting sheet 7 with wire drawing bar 4 also matches, offer the correction hole 8 that the projection with the second insertion hole groups 3 matches at the end portion of correcting sheet 7.
The course of work of the fracture screw tap fetching tool of the utility model embodiment is as follows: when screw tap during fracture, is selected with any wire drawing bar 4 according to the specification of screw tap in tapping process.
Embodiment one
When screw tap is four linear grooves, select four effective wire drawing parts 5 to be rectilinear wire drawing bar 4, these wire drawing bars 4 at first are plugged in the first insertion hole groups 2, then effective wire drawing part 5 also is plugged in the screwed hole that has processed, allow each effective wire drawing part 5 enter groove 6, then the backward rotation spanner 1, while screw tap rotates and withdraws under the effect of wire drawing bar 4, until the screw tap of fracture is taken out from the hole.
Embodiment two
When screw tap is three linear grooves, select three effective wire drawing parts 5 to be rectilinear wire drawing bar 4, these wire drawing bars 4 at first are plugged in the second insertion hole groups 3, then effective wire drawing part 5 also is plugged in the screwed hole that has processed, allow each effective wire drawing part 5 enter groove 6, then the backward rotation spanner 1, while screw tap rotates and withdraws under the effect of wire drawing bar 4, until the screw tap of fracture is taken out from the hole.
Embodiment three
When screw tap is three shaped form grooves, select three effective wire drawing parts 5 to be curved wire drawing bar 4, in the screwed hole that these wire drawing bars 4 have been processed at first, and allow each curved effective wire drawing part 5 enter groove 6, then correcting sheet 7 is placed on the mid portion of three wire drawing bars 4, what allow each wire drawing bar 4 enters correction hole 8, under the effect of correction hole 8, the relative position of three wire drawing bars 4 is fixed, then from top to bottom the second insertion hole groups 3 on the spanner 1 is enclosed within on three wire drawing bars 4, and backward rotation spanner 1, while screw tap rotates and withdraws under the effect of wire drawing bar 4, until the screw tap of fracture is taken out from the hole.
Claims (4)
1. fracture screw tap fetching tool, it is characterized in that: described fracture screw tap fetching tool comprises a spanner (1), offer the first insertion hole groups (2) and the second insertion hole groups (3) at spanner (1), each hole link group quadrate of one group of insertion hole groups (2), each hole line of the second insertion hole groups (3) forms equilateral triangle, be provided with hot candied bar (4) with the first insertion hole groups (2) and the second insertion hole groups (3) match, and groove (6) shape of effective wire drawing part (5) of fixing hot candied bar (4) and screw tap matches.
2. fracture screw tap fetching tool according to claim 1 is characterized in that: effective wire drawing part (5) of described hot candied bar (4) is linear.
3. fracture screw tap fetching tool according to claim 1 is characterized in that: effective wire drawing part (5) of described wire drawing bar (4) is shaped form.
4. according to claim 2 or 3 described fracture screw tap fetching tools, it is characterized in that: be provided with correcting sheet (7) with described wire drawing bar (4) also matches, the end of correcting sheet (7) offers the correction hole (8) that the projection with the second insertion hole groups (3) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257918 CN202702160U (en) | 2012-06-04 | 2012-06-04 | Broken screw tap picking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257918 CN202702160U (en) | 2012-06-04 | 2012-06-04 | Broken screw tap picking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202702160U true CN202702160U (en) | 2013-01-30 |
Family
ID=47582499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220257918 Expired - Fee Related CN202702160U (en) | 2012-06-04 | 2012-06-04 | Broken screw tap picking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202702160U (en) |
-
2012
- 2012-06-04 CN CN 201220257918 patent/CN202702160U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20160604 |