CN204338965U - A kind of casting counterweight drilling tool - Google Patents
A kind of casting counterweight drilling tool Download PDFInfo
- Publication number
- CN204338965U CN204338965U CN201420831785.2U CN201420831785U CN204338965U CN 204338965 U CN204338965 U CN 204338965U CN 201420831785 U CN201420831785 U CN 201420831785U CN 204338965 U CN204338965 U CN 204338965U
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- hole
- casting
- backstay
- drilling tool
- counterweight
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Abstract
The utility model discloses a kind of casting counterweight drilling tool, comprise at least one backstay and at least one boring bar, described backstay is fixedly connected with boring bar, described boring bar is fixedly connected with backstay or other boring bar respectively, the surface that the shape of an outer surface of described backstay is corresponding with casting counterweight matches, described boring bar is provided with calibration hole, and described calibration hole is corresponding with the installing hole or hole for hoist of casting counterweight respectively.The utility model can save crossed process, only needs simple alignment centering calibration hole, can actualizing technology require in the boring of each locus, production efficiency can improve 30-50%, and steady quality, significantly reduces the fraction defective of casting counterweight.
Description
Technical field
The utility model belongs to drilling tool field, specifically refers to a kind of casting counterweight drilling tool.
Background technology
Casting counterweight, as the important component part of excavator, serves the function gaining in weight and maintain balance.
Cast counterweight because of complex structure, out-of-shape, each installing hole, hole for hoist mutual size Existential Space geometrical relationship.At present, the drilling operating of casting counterweight adopts line boring always, adopts line to hole not only inefficiency, and cannot ensure the space geometry relation of casting bulk between counterweight installing hole and hole for hoist.
Utility model content
The purpose of this utility model is: overcome the above-mentioned defect of prior art, provides that a kind of drilling efficiency is high, drilling result is accurate, can ensure casting counterweight installing hole and hole for hoist space geometry relation casting counterweight drilling tool.
The utility model is achieved through the following technical solutions:
A kind of casting counterweight drilling tool, comprise at least one backstay and at least one boring bar, described backstay is fixedly connected with boring bar, described boring bar is fixedly connected with backstay or other boring bar respectively, the surface that the shape of an outer surface of described backstay is corresponding with casting counterweight matches, described boring bar is provided with calibration hole, and described calibration hole is corresponding with the installing hole or hole for hoist of casting counterweight respectively.
According to space geometry knowledge, a plane and one not point on this plane can determine a spatial relationship.Casting counterweight drilling tool in use, matched by the surface that the outer surface of backstay is corresponding with casting counterweight and can determine a plane, a point can be determined by the calibration hole on boring bar, therefore the locus of fixed cast counterweight drilling tool is got final product by a calibration hole on backstay and boring bar, i.e. fixed cast counterweight drilling tool.In addition, because calibration hole is corresponding with the installing hole or hole for hoist of casting counterweight respectively, therefore between calibration hole, the space geometry relation of bulk is corresponding with the space geometry relation of bulk between casting counterweight installing hole and hole for hoist respectively.Because the space geometry relation of bulk between calibration hole is corresponding with the space geometry relation of bulk between casting counterweight installing hole and hole for hoist respectively, and casting counterweight drilling tool is fixed, therefore, by all the other calibration holes, the space geometry relation of casting bulk between counterweight installing hole and hole for hoist after boring just can ensure boring is carried out to casting counterweight, ensure to hole accurately.
As the preferred mode of one, described casting counterweight drilling tool is formed in one frock.When using casting counterweight drilling tool, if between backstay with boring bar be fixedly connected with and being fixedly connected with between boring bar with other boring bars there occurs the changing of the relative positions, this will cause the space geometry relation of bulk between calibration hole to change, thus the space geometry relation of bulk between casting counterweight installing hole and hole for hoist cannot be ensured, boring is by not accurate enough.To be formed in one frock by casting counterweight drilling tool, can effectively avoid between backstay with boring bar be fixedly connected with and being fixedly connected with between boring bar with other boring bars there occurs the changing of the relative positions, ensure the space geometry relation of bulk between casting counterweight installing hole and hole for hoist, ensure the correctness of drilling result.
As the preferred mode of one, the quantity of described backstay is at least two.By adopting at least two backstays, the fixed effect casting counterweight drilling tool can not only be strengthened further, can also avoid causing whole casting counterweight drilling tool to use because certain backstay damages.When certain backstay damages, casting counterweight drilling tool can also the continuation of whole casting counterweight drilling tool uses by using remaining backstay to ensure, can extend the service life of casting counterweight drilling tool.
The utility model compared with prior art, has the following advantages and beneficial effect:
The utility model can save crossed process, only needs simple alignment centering calibration hole, can actualizing technology require in the boring of each locus, production efficiency can improve 30-50%, and steady quality, significantly reduces the fraction defective of casting counterweight.
Accompanying drawing explanation
Fig. 1 is use schematic diagram of the present utility model.
Wherein: 1 casting counterweight, 2 backstays, 3 boring bars, 4 calibration holes.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
See Fig. 1, a kind of casting counterweight drilling tool, comprise at least one backstay 2 and at least one boring bar 3, described backstay 2 is fixedly connected with boring bar 3, described boring bar 3 is fixedly connected with backstay 2 or other boring bar 3 respectively, the surface that the shape of an outer surface of described backstay 2 is corresponding with casting counterweight 1 matches, and described boring bar 3 is provided with calibration hole 4, and described calibration hole 4 is corresponding with the installing hole or hole for hoist of casting counterweight 1 respectively.
According to space geometry knowledge, a plane and one not point on this plane can determine a spatial relationship.Casting counterweight drilling tool in use, matched by the surface that the outer surface of backstay 2 is corresponding with casting counterweight 1 and can determine a plane, a point can be determined by the calibration hole 4 on boring bar 3, therefore the locus of fixed cast counterweight drilling tool is got final product by the calibration hole 4 on backstay 2 and boring bar 3, i.e. fixed cast counterweight drilling tool.In addition, because calibration hole 4 is corresponding with the installing hole or hole for hoist of casting counterweight 1 respectively, therefore between calibration hole 4, the space geometry relation of bulk is corresponding with the space geometry relation of bulk between casting counterweight 1 installing hole and hole for hoist respectively.Because the space geometry relation of bulk between calibration hole 4 is corresponding with the space geometry relation of bulk between casting counterweight 1 installing hole and hole for hoist respectively, and casting counterweight drilling tool is fixed, therefore, by all the other calibration holes 4, the space geometry relation of casting bulk between counterweight 1 installing hole and hole for hoist after boring just can ensure boring is carried out to casting counterweight 1, ensure to hole accurately.
As the preferred mode of one, described casting counterweight drilling tool is formed in one frock.When using casting counterweight drilling tool, if between backstay 2 with boring bar 3 be fixedly connected with and being fixedly connected with between boring bar 3 with other boring bars 3 there occurs the changing of the relative positions, this will cause the space geometry relation of bulk between calibration hole 4 to change, thus the space geometry relation of bulk between casting counterweight 1 installing hole and hole for hoist cannot be ensured, boring is by not accurate enough.To be formed in one frock by casting counterweight drilling tool, can effectively avoid between backstay 2 with boring bar 3 be fixedly connected with and being fixedly connected with between boring bar 3 with other boring bars 3 there occurs the changing of the relative positions, ensure the space geometry relation of bulk between casting counterweight 1 installing hole and hole for hoist, ensure the correctness of drilling result.
As the preferred mode of one, the quantity of described backstay 2 is at least two.By adopting at least two backstays 2, the fixed effect casting counterweight drilling tool can not only be strengthened further, can also avoid causing whole casting counterweight drilling tool to use because certain backstay 2 damages.When certain backstay 2 damages, casting counterweight drilling tool can also the continuation of whole casting counterweight drilling tool uses by using remaining backstay 2 to ensure, can extend the service life of casting counterweight drilling tool.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls into protection domain of the present utility model.
Claims (3)
1. a casting counterweight drilling tool, it is characterized in that: comprise at least one backstay (2) and at least one boring bar (3), described backstay (2) is fixedly connected with boring bar (3), described boring bar (3) is fixedly connected with backstay (2) or other boring bar (3) respectively, the surface that the shape of an outer surface of described backstay (2) is corresponding with casting counterweight (1) matches, described boring bar (3) is provided with calibration hole (4), and described calibration hole (4) is corresponding with the installing hole or hole for hoist of casting counterweight (1) respectively.
2. one casting counterweight drilling tool according to claim 1, is characterized in that: described casting counterweight drilling tool is formed in one frock.
3. one casting counterweight drilling tool according to claim 1, is characterized in that: the quantity of described backstay (2) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831785.2U CN204338965U (en) | 2014-12-25 | 2014-12-25 | A kind of casting counterweight drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420831785.2U CN204338965U (en) | 2014-12-25 | 2014-12-25 | A kind of casting counterweight drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338965U true CN204338965U (en) | 2015-05-20 |
Family
ID=53222267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420831785.2U Active CN204338965U (en) | 2014-12-25 | 2014-12-25 | A kind of casting counterweight drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204338965U (en) |
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2014
- 2014-12-25 CN CN201420831785.2U patent/CN204338965U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |