CN210413617U - Thin-wall part drilling clamp - Google Patents
Thin-wall part drilling clamp Download PDFInfo
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- CN210413617U CN210413617U CN201921430622.2U CN201921430622U CN210413617U CN 210413617 U CN210413617 U CN 210413617U CN 201921430622 U CN201921430622 U CN 201921430622U CN 210413617 U CN210413617 U CN 210413617U
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- expansion sleeve
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Abstract
The utility model discloses a thin wall spare boring grab, including base and drilling mandrel, its characterized in that, be equipped with screw hole, pinhole and T type groove on the base, the drilling mandrel is by hexagon socket head cap screw fixed mounting on the base, supreme spring, packing ring, the round hole cover, locating piece, opening packing ring and the little bead nut of rising of being equipped with in proper order are followed on drilling mandrel upper portion, packing ring and spring set up in the inside that the round hole rises the cover, the round hole rises the cover and sets up in the below of locating piece, just packing ring and spring set up in the below of locating piece, the top of locating piece is equipped with the opening packing ring, the top of opening packing ring is equipped with little bead nut, little bead nut sets up in the top of drilling mandrel. Thin wall spare boring grab simple structure, low, the handling time of manufacturing cost short, can realize evenly drilling out dozens of or even hundreds of apertures in thin wall spline tooth's socket.
Description
Technical Field
The utility model relates to a boring grab specifically relates to a thin wall spare boring grab.
Background
The clutch gear with the external splines is characterized in that the spline part is a thin-wall part, the length of the thin wall reaches 70 mm, the minimum thickness of the thin wall is only 3 mm, dozens of or even hundreds of phi 3 small holes need to be uniformly distributed and drilled in the tooth grooves of the external splines at the thin wall part, when a machine tool is used for directly drilling holes in the thin-wall part, the thin-wall part is easy to swing, the tooth groove width at the root part of the spline is only 3.2 mm, the spline can be easily drilled during drilling, and simultaneously, the twist drill with the diameter of phi 3 is too thin, so that the spline is easy to break in the machining process, and the waste loss of products. The quality of the processed product is unstable, the qualification rate is low, the processing time is long, and the cost is high. Therefore, a drilling fixture with a simple structure and convenience in use is needed to ensure that the thin-wall part does not swing in the drilling process, the drill bit can uniformly drill the middle part of the spline tooth groove, the requirement of customers is met, the small hole machining precision is ensured, the qualification rate of products is improved, and the manufacturing cost is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an above-mentioned technical problem of solution to a thin wall spare boring grab is provided.
The utility model discloses the technical scheme who adopts as follows:
the utility model provides a thin wall spare boring grab, includes base and drilling mandrel, be equipped with screw hole, pinhole and T type groove on the base, the drilling mandrel is by hexagon socket head cap screw fixed mounting on the base, supreme spring, packing ring, the round hole cover, locating piece, opening packing ring and the little bead nut of rising are equipped with in proper order down followed on drilling mandrel upper portion, packing ring and spring set up in the inside that the round hole rises the cover, the round hole rises the cover and sets up in the below of locating piece, just packing ring and spring set up in the below of locating piece, the top of locating piece is equipped with the opening packing ring, the top of opening packing ring is equipped with little bead nut, little bead nut sets up in the top of drilling mandrel.
Furthermore, one side of the drilling mandrel is provided with a tooth aligning positioning unit, the tooth aligning positioning unit is arranged at the left part of the base, and the tooth aligning positioning unit is fixedly arranged on the base through a hexagon head bolt and a cylindrical pin.
Furthermore, the base is provided with a threaded hole, a pin hole and a T-shaped groove, the tooth aligning positioning unit comprises a support, a cylindrical pin, a rocker, a nut and a tooth aligning rod, the support is fixedly installed in the threaded hole and the pin hole which are formed in the base through a hexagon head bolt and the cylindrical pin, the lower end of the rocker is installed on the support through the cylindrical pin, the rocker rotates by taking the support and the cylindrical pin as the circle center, the upper end of the rocker is connected with the left end of the tooth aligning rod through the nut, and the right end of the tooth aligning rod is matched with a spline tooth groove of a processed product.
Furthermore, the drilling mandrel comprises a fixed section, a limiting section and a positioning section, the fixed section is step-shaped and is fixedly connected with the base through an inner hexagon screw, a first step is formed at the joint of the upper part of the fixed section and the limiting section, and a second step is formed at the joint of the upper part of the limiting section and the lower part of the positioning section.
The positioning section is provided with a spring and a gasket, and the spring is arranged below the gasket;
the lower part of the circular hole expansion sleeve is in a gamma shape, the inner conical surface of the lower part of the circular hole expansion sleeve is matched with the outer conical surface of the drilling mandrel, and the outer circle of the lower part of the circular hole expansion sleeve is matched with the inner hole of a product, so that the effects of positioning and tensioning the product are achieved. The upper part of the circular hole expansion sleeve is provided with an annular limiting plate, and the limiting plate is abutted against the gasket, so that the gasket and the spring are arranged inside the circular hole expansion sleeve under the action of the circular hole expansion sleeve;
the positioning block is arranged on the round hole expansion sleeve and is in clearance fit with the thin wall of a clamped product, and when the thin wall deforms in a drilling hole, the positioning block plays a role in auxiliary support.
An opening washer is arranged on the positioning block, a small flange nut is arranged on the opening washer, and the spring, the washer, the circular hole expansion sleeve, the positioning block and the opening washer are fixed on the drilling mandrel through the small flange nut.
Further, the top of the drilling mandrel is provided with threads, and the small flange nut is matched with the threads arranged at the top of the drilling mandrel.
Compared with the prior art, the utility model discloses following beneficial effect has:
thin wall spare boring grab simple structure, low, the product handling time of manufacturing cost are short, can realize evenly drilling out dozens of supreme hundreds apertures in thin wall spare spline tooth's socket.
Drawings
Fig. 1 is the utility model discloses a thin wall spare boring grab's schematic structure.
Fig. 2 is the assembly structure schematic diagram of the thin-wall part drilling clamp and the clamped workpiece of the present invention.
Fig. 3 is a schematic view of the cross-sectional structure a-a of the present invention.
Fig. 4 is a schematic view of the E-E cross section structure of the present invention.
Fig. 5 is a schematic structural diagram of the base of the present invention.
Fig. 6 is a schematic structural view of the gasket of the present invention.
Fig. 7 is a schematic structural view of the split washer of the present invention.
Fig. 8 is a schematic structural view of the drilling mandrel of the present invention.
Fig. 9 is a schematic structural view of the circular hole expansion sleeve of the present invention.
Fig. 10 is a schematic structural diagram of the positioning block of the present invention.
In the drawings:
1. the workpiece clamping device comprises a base, 2 parts of a support, 3 parts of a cylindrical pin, 4 parts of a rocker, 5 parts of a nut, 6 parts of a toothed bar, 7 parts of a small-flange nut, 8 parts of an opening gasket, 9 parts of a positioning block, 10 parts of a gasket, 11 parts of a spring, 12 parts of a circular hole expansion sleeve, 13 parts of a drilling mandrel, 14 parts of an inner hexagon screw, 15 parts of a hexagon head bolt, 16 parts of a fixing section, 17 parts of a limiting section, 18 parts of a positioning section, 19 parts of a first step, 20 parts of a second step, 21 parts of a limiting plate, 22 parts of a positioning plate and 23 parts of a clamped.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the practice of the invention, certain features of the drawings may be omitted, enlarged or reduced, and do not represent actual product dimensions; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1-10, the utility model provides a thin-wall part drilling jig, which comprises a base 1 and a drilling mandrel 13, the base 1 is provided with a threaded hole, a pin hole and a T-shaped groove, the base 1 is fixed on a machine tool through the T-shaped groove and a T-shaped screw, the drilling mandrel 13 is fixedly arranged on the base 1 by an inner hexagon screw 14, the upper part of the drilling mandrel 13 is sequentially sleeved with a spring 11, a washer 10, a round hole expansion sleeve 12, a positioning block 9, an opening washer 8 and a small flange nut 7 from bottom to top, the washer 10 and the spring 11 are arranged inside the round hole expansion sleeve 12, the round hole expansion sleeve 12 is arranged below the positioning block 9, the gasket 10 and the spring 11 are arranged below the positioning block 9, the opening gasket 8 is arranged above the positioning block 9, a small flange nut 7 is arranged above the opening washer 8, and the small flange nut 7 is arranged at the top of the drilling mandrel 13.
As a further improvement of the above embodiment, one side of the drilling mandrel 13 is provided with a tooth alignment positioning unit, and the tooth alignment positioning unit is arranged at the left part of the base 1, and the tooth alignment positioning unit is fixedly installed on the base 1 through a hexagon head bolt 15 and a cylindrical pin 3.
As a further improvement of the above embodiment, the base 1 is provided with a bolt hole and a pin hole, the tooth alignment positioning unit includes a support 2, a cylindrical pin 3, a rocker 4, a nut 5 and a tooth alignment rod 6, the support 2 is fixedly mounted in the bolt hole and the pin hole on the base 1 through a hexagon bolt 15 and the cylindrical pin 3, the lower end of the rocker 4 is mounted on the support 2 through the cylindrical pin 3, the rocker 4 rotates around the support 2 and the cylindrical pin 3, the upper end of the rocker 4 is connected with the left end of the tooth alignment rod 6 through the nut 5, and the right end of the tooth alignment rod 6 is in spline fit with the tooth space of the processed product 23.
As a further improvement of the above embodiment, the drilling mandrel 13 includes a fixing section 16, a limiting section 17 and a positioning section 18, the fixing section 16 is step-shaped, the fixing section 16 is fixedly connected with the base 1 through a socket head cap screw 14, a first step 19 is formed at the joint of the upper part of the fixing section 16 and the limiting section 17, and a second step 20 is formed at the joint of the upper part of the limiting section 17 and the lower part of the positioning section 18.
The positioning section 18 is provided with a spring 11 and a gasket 10, and the spring 11 is arranged below the gasket 10.
The lower part of the circular hole expansion sleeve 12 is in a gamma shape, the lower part of the circular hole expansion sleeve 12 is matched with the second step 20, the inner conical surface of the lower part of the circular hole expansion sleeve 12 is matched with the outer conical surface of the drilling mandrel 13, and the outer circle of the lower part of the circular hole expansion sleeve 12 is matched with the inner hole of the product 23, so that the positioning and tensioning effects on the product 23 are achieved. The upper portion of the round hole expansion sleeve 12 is provided with an annular limiting plate 21, the limiting plate 21 is abutted to the gasket 10, so that the gasket 10 and the spring 11 are arranged inside the round hole expansion sleeve 12 under the action of the round hole expansion sleeve 12.
The positioning block 9 is arranged on the circular hole expansion sleeve 12, the upper part of the positioning block 9 is in clearance fit with the thin wall of the clamped product 23, and when the thin wall of the product 23 is deformed during drilling, the positioning block 9 plays a role in auxiliary support.
An opening washer 8 is arranged on the positioning block 9, a small flange nut 7 is arranged on the opening washer 8, and the spring 11, the washer 10, the circular hole expansion sleeve 12, the positioning block 9 and the opening washer 8 are fixed on the drilling mandrel 13 by the small flange nut 7.
As a further improvement of the above embodiment, the top of the drilling spindle 13 is provided with a thread, and the small flange nut 7 is adapted to the thread provided on the top of the drilling spindle 13.
The clamp base 1 is connected to the machine tool by means of T-screws so that the clamp and the machine tool are connected as a unit. Thin-wall products 23 are loaded into the lower part of a circular hole expansion sleeve 12, a positioning block 9 is installed on the circular hole expansion sleeve 12, an opening gasket 8 is installed on the positioning block 9, a small flange nut 7 is connected to the upper part of a drilling mandrel 13 through internal threads, the tooth bar 6 is aligned to the tooth grooves of the product splines on the opening gasket 8, the small flange nut 7 is screwed, and therefore the products are firmly fixed on a clamp and a machine tool. The relative position of the external spline and the drill bit is fixed, the first product is aligned to the position and adjusted when the machine is adjusted every time, and the relative positions of the external spline and the drill bit are adjusted without wasting time for subsequent products. After the product is processed, the small flange nut 7 is loosened, the opening washer 8 and the positioning block 9 are taken down, and then the product can be taken down from the clamp, so that the product processing is completed. Thin wall spare boring grab simple structure, low, the product handling time of manufacturing cost are short, can realize evenly drilling out dozens of or even hundreds of apertures in thin wall spline tooth's socket.
It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a thin wall spare boring grab, a serial communication port, including base and drilling mandrel, be equipped with screw hole, pinhole and T type groove on the base, the drilling mandrel is by hexagon socket head cap screw fixed mounting on the base, supreme spring, packing ring, the round hole cover, locating piece, opening packing ring and the little bead nut of rising are equipped with in proper order down followed on drilling mandrel upper portion, packing ring and spring set up in the inside that the round hole rises the cover, the round hole rises the cover and sets up in the below of locating piece, just packing ring and spring set up in the below of locating piece, the top of locating piece is equipped with the opening packing ring, the top of opening packing ring is equipped with little bead nut, little bead nut sets up in the top of drilling.
2. A thin-walled workpiece drilling clamp as claimed in claim 1, wherein one side of the drilling mandrel is provided with a tooth aligning positioning unit, the tooth aligning positioning unit is arranged at the left part of the base, and the tooth aligning positioning unit is fixedly mounted on the base through a hexagon head bolt and a cylindrical pin.
3. A thin-walled workpiece drilling clamp as claimed in claim 2, wherein the base is provided with a threaded hole, a pin hole and a T-shaped groove, the tooth aligning positioning unit comprises a support, a cylindrical pin, a rocker, a nut and a tooth aligning rod, the support is fixedly mounted in the threaded hole and the pin hole formed in the base through a hexagon bolt and the cylindrical pin, the lower end of the rocker is mounted on the support through the cylindrical pin, the rocker rotates around the support and the cylindrical pin, the upper end of the rocker is connected with the left end of the tooth aligning rod through the nut, and the right end of the tooth aligning rod is matched with a spline tooth groove of a machined product.
4. A thin-walled workpiece drilling clamp according to claim 1, wherein the drilling mandrel comprises a fixing section, a limiting section and a positioning section, the fixing section is step-shaped and is fixedly connected with the base through a socket head cap screw, a first step is formed at the joint of the upper part of the fixing section and the limiting section, and a second step is formed at the joint of the upper part of the limiting section and the lower part of the positioning section;
the positioning section is provided with a spring and a gasket, and the spring is arranged below the gasket;
the lower part of the circular hole expansion sleeve is in a gamma shape, the inner conical surface of the lower part of the circular hole expansion sleeve is matched with the outer conical surface of the drilling mandrel, the outer circle of the lower part of the circular hole expansion sleeve is matched with the inner hole of a product to play roles in positioning and tensioning the product, the upper part of the circular hole expansion sleeve is provided with an annular limiting plate, and the limiting plate is abutted to a gasket, so that the gasket and a spring are arranged inside the circular hole expansion sleeve under the effect of the circular hole expansion sleeve;
the positioning block is arranged on the circular hole expansion sleeve and is in clearance fit with the thin wall of the clamped product, and when the thin wall is deformed in a drilling hole, the positioning block plays a role in auxiliary support;
an opening washer is arranged on the positioning block, a small flange nut is arranged on the opening washer, and the spring, the washer, the circular hole expansion sleeve, the positioning block and the opening washer are fixed on the drilling mandrel through the small flange nut.
5. A thin walled workpiece drilling fixture as claimed in claim 4, wherein the top of the drilling mandrel is threaded and the small flange nut is adapted to the threads provided on the top of the drilling mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921430622.2U CN210413617U (en) | 2019-08-30 | 2019-08-30 | Thin-wall part drilling clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921430622.2U CN210413617U (en) | 2019-08-30 | 2019-08-30 | Thin-wall part drilling clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210413617U true CN210413617U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921430622.2U Active CN210413617U (en) | 2019-08-30 | 2019-08-30 | Thin-wall part drilling clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210413617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621122A (en) * | 2020-12-11 | 2021-04-09 | 重庆江增船舶重工有限公司 | Machining method of guide sleeve type thin-wall part |
-
2019
- 2019-08-30 CN CN201921430622.2U patent/CN210413617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621122A (en) * | 2020-12-11 | 2021-04-09 | 重庆江增船舶重工有限公司 | Machining method of guide sleeve type thin-wall part |
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