CN113579795A - Differential mechanism shell boring grab - Google Patents
Differential mechanism shell boring grab Download PDFInfo
- Publication number
- CN113579795A CN113579795A CN202110883986.1A CN202110883986A CN113579795A CN 113579795 A CN113579795 A CN 113579795A CN 202110883986 A CN202110883986 A CN 202110883986A CN 113579795 A CN113579795 A CN 113579795A
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- CN
- China
- Prior art keywords
- cone
- spring
- expansion
- hole
- positioning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Cutting Devices (AREA)
Abstract
The invention relates to a differential case drilling clamp, which solves the technical problems that the existing clamp has a complex structure and can not eliminate a pressing fit clearance and is provided with a base, a tension spring, a tension cone, a compression spring A, a compression spring B and a cutter hole, wherein the tension spring is in an inner cone shape, the lower part of the tension spring is provided with a sleeve with a through hole flange, and the upper part of the tension spring is provided with an open slot; the expansion cone is sequentially provided with a screw rod, a small cylinder, an outer cone, a cylinder and a short cylinder from top to bottom; the outer cone of the expansion cone is matched with the inner cone of the expansion spring, and the outer circle of the expansion spring presses the differential shell by the force generated by the rotation of the compression nut on the screw rod arranged on the expansion cone so as to ensure the correct position of the processed hole; the short cylinder of the expansion cone is sleeved with the compression spring A, and the differential mechanism can be used in the field of differential mechanism shell processing.
Description
Technical Field
The invention relates to a clamp, in particular to a differential case drilling clamp.
Background
The differential mechanism of the automobile is a device for forming speed difference, and is provided with four holes for mounting transmission shafts, and two output shafts are required to always output the same torque, so that the requirements on the size precision and the shape and position precision of the differential mechanism are strict in the manufacturing process.
The Chinese patent application with the publication number of CN109514289A discloses a drilling clamp for a differential case, which comprises a thickened nut, a die carrier, a positioning disc, a limiting block, a bearing block, a diamond pin, an opening pad, a guide pillar, a die plate, a pressing block, a small-end guide sleeve, a middle guide sleeve, a large-end guide sleeve, a bush, a pin shaft, a bolt spring, a handle, a support, a positioning key, a cover plate, a transmission shaft, a tapered roller bearing, a flange plate, a framework oil seal, an oil seal flange, a rotary table body, a rotary table top, a pressing plate gasket, a compression spring, a long screw and a short screw.
The above-mentioned clamp mainly has the following problems: firstly, the structure is complex; secondly, the key part can not eliminate the clearance of the compression fit, and certain defects exist in the process of ensuring the processing quality of the part.
Disclosure of Invention
The invention aims to solve the technical problems that the existing clamp is complex in structure and cannot eliminate a compression fit clearance, and provides a differential case drilling clamp which is reasonable in structure, convenient to operate and capable of being used for a horizontal machining center and special equipment.
The invention provides a differential case drilling clamp which is provided with a base, a tension spring, a tension cone, a compression spring A, a compression spring B and a cutter hole, wherein the lower part of the tension spring is provided with a sleeve with a through hole flange, and the upper part of the tension spring is provided with an inner cone and an open slot; the expansion cone is sequentially provided with a screw rod, a small cylinder, an outer cone, a cylinder and a short cylinder from top to bottom; the outer cone of the expansion cone is matched with the inner cone of the expansion spring, and the outer circle of the expansion spring is pressed on the differential shell by the force generated by the rotation of the compression nut on the screw rod arranged on the expansion cone; and the short cylinder of the expansion cone is sleeved with the compression spring A.
Preferably, the device is also provided with a supporting seat, the supporting seat is in a flange shape, and the upper end of the supporting seat is provided with a boss.
Preferably, the positioning seat is a cuboid, steps with through holes are arranged on two sides of the lower end of the positioning seat, a cutter hole is formed in the middle of the positioning seat, and a stepped hole, a compression spring B, a square groove and a semicircular arc are formed in the upper portion of the positioning seat.
Preferably, the positioning device is further provided with a positioning pin which is columnar, a positioning cone is arranged at the front part of the positioning pin, a step for blocking the compression spring B is arranged at the middle part of the positioning pin, a mounting blocking pin hole is arranged at the rear part of the positioning pin, and a hole is formed in the tail end of the positioning pin.
Preferably, the device is further provided with an expansion cone, and the upper part of the expansion cone is flat.
The invention has the beneficial effects that:
(1) the expansion spring is in an inner cone shape, a sleeve with a through hole flange is arranged at the lower part of the expansion spring, and an open slot is formed at the upper part of the expansion spring; the expansion cone is sequentially provided with a screw rod, a small cylinder, an outer cone, a cylinder and a short cylinder from top to bottom; the outer cone of the expansion cone is matched with the inner cone of the expansion spring, and the outer circle of the expansion spring presses the differential shell by the force generated by the rotation of the compression nut on the screw rod arranged on the expansion cone so as to ensure the correct position of the processed hole; the short cylinder of the expansion cone is sleeved with the compression spring A, the compression spring A ensures that the outer cone of the expansion cone is in conical surface contact with the inner cone of the expansion spring with proper elasticity, and can ensure that the compression nut compresses the differential case with few turns of rotation, so that the labor intensity and the working hours are reduced;
(2) the supporting seat is in a flange shape, and three or four bosses are arranged at the upper end of the supporting seat, so that the supporting seat can be ensured to be in parallel contact with the bottom surface of the differential case;
(3) the positioning seat is a cuboid, steps with through holes are arranged on two sides of the lower end of the positioning seat, screws can be conveniently connected and pressed with corresponding screw holes of the base, a cutter relieving hole for feeding a drilling cutter is arranged in the middle of the positioning seat, and a stepped hole, a compression spring B square, a groove and a semi-circular arc are arranged on the upper portion of the positioning seat, so that the positioning pin can be accurately positioned;
(4) the positioning pin is columnar, the front part of the positioning pin is provided with a positioning cone, the middle part of the positioning pin is provided with a step for blocking the compression spring B, the rear part of the positioning pin is provided with a pin blocking hole, the tail end of the positioning pin is provided with a hole for mounting the handle, when the pull-out handle rotates 90 degrees, two sides of the pin block are tightly close to a semicircular arc arranged on the positioning seat, the positioning pin is withdrawn from a square hole arranged on the differential case, otherwise, the positioning pin is in a positioning state;
(5) the upper part of the expansion cone is provided with a flat shape which can be clamped by a spanner and does not rotate, and the expansion spring can expand to press the differential shell by rotating the compression nut without torsion.
Drawings
FIG. 1 is a schematic front view of the mounting structure of the present invention;
FIG. 2 is a schematic view of the present invention in the direction A;
FIG. 3a is a schematic front view of a backup pad of the present invention;
figure 3b is a schematic view of the bearing block of the present invention from the side.
Reference numerals:
1. a base; 2. a supporting seat; 3. a spring is expanded; 4, compressing the spring A; 5. a differential case; 6. expanding the cone; 7. an open loop; 8. a compression nut; 9. positioning pins; 10. a compression spring B; 11. a stop pin; 12. a handle; 13. drilling a cutter hole; 14. a positioning seat.
Detailed Description
As shown in fig. 1 to 3, the invention provides a differential case drilling fixture, which is provided with a base 1, a supporting seat 2, an expansion spring 3, a compression spring a4, a differential case 5, an expansion cone 6, an opening ring 7, a compression nut 8, a positioning pin 9, a compression spring B10, a stop pin 11, a handle 12, a cutter relieving hole 13 and a positioning seat 14.
The base 1 is a square body, screw holes for mounting various parts are arranged on the square body, the lower part of the expansion spring 3 is provided with a sleeve with a through hole flange, the upper part of the expansion spring is provided with an inner cone with 3-4 open slots, the expansion cone 6 is provided with threads, the lower part of the expansion cone is provided with an outer cone and a pull rod with a step cylinder, the expansion cone 6 is arranged in the hole of the expansion spring 3, the lower end of the expansion cone is sleeved with a compression spring A4, common screws are used for fixing the expansion cone and the corresponding screw holes of the base 1 through the flange hole arranged below the expansion spring 3, the differential case 5 is sleeved from the upper end of the expansion cone 6 to the slotted excircle of the expansion cone 3 to be in contact fit with the corresponding inner hole diameter size of the differential case 5, a positioning pin 9 is aligned with the square hole arranged on the differential case 5 for circumferential positioning, then an opening ring 7 is aligned with the excircle on the upper part of the expansion cone 6, a spanner is manually screwed down a compression nut 8 until the bottom end of the differential case 5 is close to the upper surface of the supporting seat 2, a machine is started, and a cutter is fed to process, the machine workbench is matched in a rotating way, so that the cross hole can be machined.
The supporting seat 2 is flange-shaped, and the upper end of the supporting seat is provided with three or four bosses which can ensure that the supporting seat is parallel to and limited by the bottom surface of the differential case 5.
The positioning seat 14 is a cuboid, steps with through holes are arranged on two sides of the lower end of the positioning seat, screws and corresponding screw holes of the base 1 are conveniently connected and compressed, a cutter relieving hole 13 for feeding a drilling cutter is formed in the middle of the positioning seat, a stepped hole is formed in the upper portion of the positioning seat, a compression spring B10 is installed on the stepped hole, and a square groove and a semi-circular arc are further arranged on the positioning seat and are used for achieving accurate positioning of the positioning pin 9.
The positioning pin 9 is columnar, the front part is provided with a positioning cone, the middle part is provided with a step for blocking the compression spring B10, the rear part is provided with an installation blocking pin hole, the tail end is provided with a hole for installing the handle 12, when the handle 12 is pulled out and rotated for 90 degrees, two sides of the blocking pin 11 are tightly close to the semicircular arc arranged on the positioning seat 14, the positioning pin 9 is withdrawn from the square hole arranged on the differential case 5, otherwise, the positioning pin is in a positioning state.
The upper part of the expansion cone 6 is flat and can be clamped by a spanner without rotating, and the expansion spring 3 can be expanded to compress the differential shell by rotating the compression nut without twisting.
However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (5)
1. A differential case drilling clamp is provided with a base and is characterized by further comprising a tension spring, a tension cone, a compression spring A, a compression spring B and a cutter hole, wherein the tension spring is in an inner conical shape, a sleeve with a through hole flange is arranged at the lower part of the tension spring, and an open slot is formed in the upper part of the tension spring; the expansion cone is sequentially provided with a screw rod, a small cylinder, an outer cone, a cylinder and a short cylinder from top to bottom; the outer cone of the expansion cone is matched with the inner cone of the expansion spring, the outer circle of the expansion spring presses the differential case by the force generated by the rotation of the compression nut on the screw rod arranged on the expansion cone, and the lower end of the expansion cone is sleeved with the compression spring A.
2. The differential carrier boring jig of claim 1 further comprising a support base, wherein the support base is flange-shaped and has a boss at an upper end thereof.
3. The differential case drilling jig according to claim 1, further comprising a positioning seat, wherein the positioning seat is a rectangular parallelepiped, steps with through holes are provided on both sides of a lower end of the positioning seat, a cutter relief hole is provided in a middle portion of the positioning seat, and a step hole, a compression spring B, a square groove, and a semicircular arc are provided in an upper portion of the positioning seat.
4. The differential case drilling jig according to claim 1, further comprising a positioning pin, wherein the positioning pin is columnar, the front portion of the positioning pin is provided with a positioning cone, the middle portion of the positioning pin is provided with a step for blocking the compression spring B, the rear portion of the positioning pin is provided with a pin blocking hole, and the tail end of the positioning pin is provided with a hole.
5. The differential carrier boring jig of claim 1 further comprising an expansion cone, wherein the upper portion of the expansion cone is flattened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110883986.1A CN113579795A (en) | 2021-08-03 | 2021-08-03 | Differential mechanism shell boring grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110883986.1A CN113579795A (en) | 2021-08-03 | 2021-08-03 | Differential mechanism shell boring grab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113579795A true CN113579795A (en) | 2021-11-02 |
Family
ID=78254071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110883986.1A Pending CN113579795A (en) | 2021-08-03 | 2021-08-03 | Differential mechanism shell boring grab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113579795A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203679354U (en) * | 2014-02-25 | 2014-07-02 | 徐小红 | Valve body drill jig of butterfly valve |
| CN205341975U (en) * | 2015-11-11 | 2016-06-29 | 上海大学 | Boring grab of differential mechanism shell |
| CN205798527U (en) * | 2016-07-22 | 2016-12-14 | 利欧集团浙江泵业有限公司 | bevel gear drilling tool |
| CN207104379U (en) * | 2017-05-11 | 2018-03-16 | 江苏高精机电装备有限公司 | A kind of Zhang Xin positioning compressions mechanism |
| CN209578240U (en) * | 2019-01-04 | 2019-11-05 | 江西昌河航空工业有限公司 | A kind of pair of disk part by performing clamps the device of drilling |
-
2021
- 2021-08-03 CN CN202110883986.1A patent/CN113579795A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203679354U (en) * | 2014-02-25 | 2014-07-02 | 徐小红 | Valve body drill jig of butterfly valve |
| CN205341975U (en) * | 2015-11-11 | 2016-06-29 | 上海大学 | Boring grab of differential mechanism shell |
| CN205798527U (en) * | 2016-07-22 | 2016-12-14 | 利欧集团浙江泵业有限公司 | bevel gear drilling tool |
| CN207104379U (en) * | 2017-05-11 | 2018-03-16 | 江苏高精机电装备有限公司 | A kind of Zhang Xin positioning compressions mechanism |
| CN209578240U (en) * | 2019-01-04 | 2019-11-05 | 江西昌河航空工业有限公司 | A kind of pair of disk part by performing clamps the device of drilling |
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