CN213729705U - Combined hard alloy broach - Google Patents
Combined hard alloy broach Download PDFInfo
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- CN213729705U CN213729705U CN202021918568.9U CN202021918568U CN213729705U CN 213729705 U CN213729705 U CN 213729705U CN 202021918568 U CN202021918568 U CN 202021918568U CN 213729705 U CN213729705 U CN 213729705U
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- blade
- hilt
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- guide block
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Abstract
The utility model relates to a combined hard alloy broach, which comprises a hilt, wherein a first end of the hilt is fixedly connected with a plurality of mounting rods arranged according to an annular array, a plurality of groups of blade combinations are mounted on the mounting rods, the outer diameters of the blade combinations are gradually increased from one side close to the hilt to one side away from the hilt, one end of the mounting rod, which is far away from the hilt, is provided with a rear guide block, and one end of the mounting rod, which is far away from the hilt, is screwed with a nut which is abutted to the rear guide block; the center of the cutter handle is provided with a first liquid supply hole, the center of the blade combination is provided with a second liquid supply hole communicated with the first liquid supply hole, the end face of the blade combination is provided with a plurality of liquid discharge grooves, and the liquid discharge grooves are communicated with the second liquid supply hole. The beneficial effects are that: the assembled connection is adopted, so that the blade combination can be independently replaced, and the use cost of the broach is reduced; lubricating liquid or cooling liquid sequentially passes through the first liquid supply hole, the second liquid supply hole and the liquid discharge groove and is sprayed onto the cutting blade and the alloy blade, so that the lubricating liquid or the cooling liquid can be sprayed onto the broach located in the workpiece.
Description
Technical Field
The utility model relates to a broach technical field especially relates to a modular carbide broach.
Background
Broaches are shaped tools used for broaching. The surface of the cutter is provided with a plurality of rows of cutter teeth, the size and the shape of each row of cutter teeth are sequentially increased and changed from a cutting-in end to a cutting-out end, when the broach makes broaching movement, each cutter tooth cuts a certain thickness of metal from a workpiece, and finally the required size and shape are obtained, the broach is commonly used for processing round holes, spline holes, key slots, planes, forming surfaces and the like in batch and mass production, the productivity is high, and the broach is divided into an inner broach and an outer broach according to different processing surface parts; according to different stress modes during working, the method is divided into a broach and a push broach, the push broach is commonly used for calibrating a heat-treated molded hole, the abrasion of the broach mainly occurs on a rear tool face, particularly the corner of a chip dividing groove is more serious, the broach is reground when the abrasion VB exceeds 0.3mm, and the regrind is generally carried out on a special grinder.
The wear amount of the broach is large, and the cost is high because the whole broach needs to be discarded once the local cutting edge of the traditional broach is damaged; lubricating liquid or cooling liquid of a traditional broach is sprayed to a broach feeding position through a spray pipe, and the lubricating liquid or the cooling liquid cannot be sprayed to the broach located in a workpiece.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above problems existing in the prior art and provide a combined hard alloy broach.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a combined hard alloy broach comprises a hilt, wherein a plurality of mounting rods arranged according to an annular array are fixedly connected to a first end of the hilt, a plurality of blade combinations are mounted on the mounting rods, the outer diameters of the blade combinations are sequentially increased from one side close to the hilt to the side far away from the hilt, a rear guide block is mounted at one end, far away from the hilt, of the mounting rod, and a nut in butt joint with the rear guide block is screwed at one end, far away from the hilt, of the mounting rod; the center of handle of a knife is equipped with first confession liquid hole, the center of blade combination is equipped with the second confession liquid hole with first confession liquid hole intercommunication, be equipped with the outage groove of multichannel along the radial arrangement of blade combination on the terminal surface of blade combination, outage groove and second confession liquid hole intercommunication.
Further, each blade combination comprises a cutting blade and an alloy blade, and the outer diameter of the cutting blade in the same blade combination is smaller than that of the alloy blade.
Further, a second liquid supply hole is formed in the center of the cutting blade and the center of the alloy blade, and a plurality of liquid discharge grooves are formed in each end face of the cutting blade and each end face of the alloy blade.
Further, cutting blade, alloy blade, back guide block have a positioning fixture block towards the one end rigid coupling of handle, cutting blade, alloy blade, handle are equipped with positioning slot towards the one end of back guide block, positioning fixture block and positioning slot looks block.
Furthermore, round holes for the installation rod to penetrate are formed in the cutting blade and the alloy blade.
Furthermore, a connecting pipe communicated with the first liquid supply hole is fixedly connected to the second end of the handle.
Further, the handle is divided into a front guide part, a neck part and a front handle from the first end to the second end in sequence.
Furthermore, a counter bore for accommodating a nut is arranged in the rear guide block.
The utility model has the advantages that: the handle, the mounting rod, the blade combination, the rear guide block and the nut are connected in an assembling manner, so that the blade combination can be independently replaced, and the use cost of the broach is reduced; lubricating liquid or cooling liquid sequentially passes through the first liquid supply hole, the second liquid supply hole and the liquid discharge groove and is sprayed onto the cutting blade and the alloy blade, so that the lubricating liquid or the cooling liquid can be sprayed onto the broach located in the workpiece.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural diagram of a first view angle of a hard alloy broach according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second view angle of the hard alloy broach according to the embodiment of the present invention;
FIG. 3 is a schematic structural view of a handle according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a rear guide block in an embodiment of the present invention;
fig. 5 is a schematic view of a first view of a cutting blade according to an embodiment of the present invention;
fig. 6 is a schematic view of a second view of a cutting blade according to an embodiment of the present invention;
FIG. 7 is a schematic view of an alloy blade according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an alloy blade according to an embodiment of the present invention at a second viewing angle.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1 to 8, a combined hard alloy broach comprises a hilt 1, wherein three mounting rods 2 arranged in an annular array are fixedly connected to a first end of the hilt 1, ten groups of blade combinations 3 are mounted on the mounting rods 2, the outer diameters of the ten groups of blade combinations 3 are sequentially increased from one side close to the hilt 1 to one side far away from the hilt 1, a rear guide block 4 is mounted at one end of the mounting rod 2 far away from the hilt 1, and a nut 5 abutted against the rear guide block 4 is screwed at one end of the mounting rod 2 far away from the hilt 1; the center of handle of a knife 1 is equipped with first confession liquid hole 6, and the center of blade combination 3 is equipped with the second confession liquid hole 7 with first confession liquid hole 6 intercommunication, is equipped with six flowing back grooves 8 along the radial arrangement of blade combination 3 on the terminal surface of blade combination 3, and flowing back groove 8 and second confession liquid hole 7 intercommunication.
Each set of blade assembly 3 comprises a cutting blade 9 and an alloy blade 10, and the outer diameter of the cutting blade 9 in the same blade assembly 3 is smaller than the outer diameter of the alloy blade 10.
The center of cutting blade 9 and the center of alloy blade 10 have all seted up second confession liquid hole 7, have all seted up six drainage grooves 8 on cutting blade 9 and each terminal surface of alloy blade 10.
One end of the cutting blade 9, the alloy blade 10 and the rear guide block 4 facing the handle is fixedly connected with a positioning clamping block 11, one end of the cutting blade 9, the alloy blade 10 and the handle 1 facing the rear guide block 4 is provided with a positioning clamping groove 12, and the positioning clamping block 11 is clamped with the positioning clamping groove 12. The stability of connection among the handle, the cutting blade, the alloy blade, the back guide block is improved.
The second end of the handle 1 is fixedly connected with a connecting pipe 14 communicated with the first liquid supply hole 6, so that the connecting pipe is conveniently connected with a pipeline for supplying lubricating liquid or cooling liquid.
The handle 1 is divided into a leading portion 15, a neck portion 16, and a front grip 17 in this order from a first end to a second end.
The rear guide block 4 is provided with a counter bore 18 for receiving a nut.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a modular carbide broach which characterized in that: the tool comprises a tool shank, wherein a plurality of mounting rods arranged in an annular array are fixedly connected to a first end of the tool shank, a plurality of groups of blade combinations are mounted on the mounting rods, the outer diameters of the blade combinations are sequentially increased from one side close to the tool shank to one side far away from the tool shank, a rear guide block is mounted at one end of the mounting rod far away from the tool shank, and a nut abutted against the rear guide block is screwed at one end of the mounting rod far away from the tool shank; the center of handle of a knife is equipped with first confession liquid hole, the center of blade combination is equipped with the second confession liquid hole with first confession liquid hole intercommunication, be equipped with the outage groove of multichannel along the radial arrangement of blade combination on the terminal surface of blade combination, outage groove and second confession liquid hole intercommunication.
2. The composite cemented carbide broach according to claim 1, characterized in that: each blade combination comprises a cutting blade and an alloy blade, and the outer diameter of the cutting blade in the same blade combination is smaller than that of the alloy blade.
3. The composite cemented carbide broach according to claim 2, characterized in that: the second confession liquid hole has all been seted up at cutting blade's center and alloy blade's center, all seted up multichannel outage on cutting blade and alloy blade's each terminal surface.
4. The composite cemented carbide broach according to claim 2, characterized in that: the one end rigid coupling of cutting blade, alloy blade, back guide block orientation handle has the positioning fixture block, cutting blade, alloy blade, handle orientation back guide block's one end is equipped with positioning slot, positioning fixture block and positioning slot looks block.
5. The composite cemented carbide broach according to claim 2, characterized in that: and round holes for the installation rod to pass through are formed in the cutting blade and the alloy blade.
6. The composite cemented carbide broach according to claim 4, characterized in that: and a connecting pipe communicated with the first liquid supply hole is fixedly connected at the second end of the handle.
7. The composite cemented carbide broach according to claim 4, characterized in that: the handle is divided into a front guide part, a neck part and a front handle from the first end to the second end in sequence.
8. The composite cemented carbide broach according to claim 1, characterized in that: and a counter bore for accommodating the nut is arranged in the rear guide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021918568.9U CN213729705U (en) | 2020-09-05 | 2020-09-05 | Combined hard alloy broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021918568.9U CN213729705U (en) | 2020-09-05 | 2020-09-05 | Combined hard alloy broach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213729705U true CN213729705U (en) | 2021-07-20 |
Family
ID=76841915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021918568.9U Active CN213729705U (en) | 2020-09-05 | 2020-09-05 | Combined hard alloy broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213729705U (en) |
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2020
- 2020-09-05 CN CN202021918568.9U patent/CN213729705U/en active Active
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