CN203357075U - Edge milling clamp of main speed reducer shell of engineering truck - Google Patents
Edge milling clamp of main speed reducer shell of engineering truck Download PDFInfo
- Publication number
- CN203357075U CN203357075U CN 201320432527 CN201320432527U CN203357075U CN 203357075 U CN203357075 U CN 203357075U CN 201320432527 CN201320432527 CN 201320432527 CN 201320432527 U CN201320432527 U CN 201320432527U CN 203357075 U CN203357075 U CN 203357075U
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- China
- Prior art keywords
- final drive
- drive casing
- bolt
- engineering truck
- mills
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- Expired - Fee Related
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Abstract
The utility model discloses an edge milling clamp of a main speed reducer shell of an engineering truck. The main speed reducer shell is provided with a top hole, the edge milling clamp comprises a main clamp body and an L-shaped clamp body which are fixedly arranged on a machine tool workbench in a spaced mode, the main clamp body is formed by fixedly and coaxially connecting a stepped round base and a bolt, and the diameter of the small-diameter section of the round base is 0.6-1.2mm smaller than the inner diameter of the top hole; one edge of the L-shaped clamp body is fixedly connected with the machine tool workbench, and 3-6 counter bored holes are formed in the upper end of the other edge of the L-shaped clamp body. The edge milling clamp is specially used for the main speed reducer shell, and is simple in structure, convenient to operate and high in machining precision and qualified rate of finished products.
Description
Technical field
the utility model relates to a kind of frock clamp, is specifically related to a kind of engineering truck final drive casing and mills the limit fixture, clamps the location final drive casing during for the side of milling final drive casing centre bore.
Background technology
main reducing gear is to reduce rotating speed in automotive transmission, utilize Bevel Gear Transmission to change power direction and to increase the critical piece of moment of torsion.Wherein, main reducing gear is comprised of differential assembly, speed reducer assembly (master, driven gear), main reducing gear housing assy etc., and the main reducing gear housing assy is the installation basis of differential assembly and speed reducer assembly.Must guarantee in main reducing gear that driving and driven gear has good engagement situation, just can make their good work.The correct engagement of main reducing gear middle gear, except the crudy with gear, equipment adjustment and bearing are relevant, also have close relationship with rigidity and the machining accuracy of main reducing gear housing assy.For the needs that assemble, the main reducing gear housing assy usually by final drive casing and pair of bearings, is covered and related fittings forms.
as illustrated in fig. 1 and 2, final drive casing is provided with apical pore 1, be provided with centre bore 2 in it, for not interfering with assembling differential assembly in the inner, distance L between the side of centre bore and the axis of centre bore needs to control, and control mode commonly used is that the side to centre bore utilizes milling machine to carry out Milling Process.This milling operation need be used Special tooling clamp, to improve machining accuracy, process velocity and product qualified rate.
Summary of the invention
the utility model purpose is to provide a kind of simple in structure, easy to operate, machining accuracy and product qualified rate engineering truck final drive casing high, that enhance productivity mills the limit fixture.
for achieving the above object, the technical solution adopted in the utility model is: a kind of engineering truck final drive casing mills the limit fixture, described final drive casing is provided with apical pore, the described limit fixture that mills comprises that interval is fixedly arranged on main clamp and the L shaped fixture on platen, described main clamp coaxially is connected and forms by step cup dolly and bolt, and the path section diameter of described cup dolly is less than described apical pore internal diameter 0.6 ~ 1.2mm;
wherein being fixedly connected with described platen on one side of described L shaped fixture, the upper end of another side is provided with 3 ~ 6 counterbores.
in technique scheme, described final drive casing is provided with on ，Gai great plane, large plane and is provided with vertically installing hole, has at least the centre-to-centre spacing between a described counterbore and bolt to equate with the centre-to-centre spacing between described installing hole and apical pore.
preferably, the upper end of described L shaped fixture is provided with the described counterbore of 4 circles.
in technique scheme, the two ends of described bolt all have screw thread, and the lower end of this bolt is fixedly connected with described cup dolly by lower nut, and the upper end of this bolt is bolted with the top nut be installed with on described final drive casing.
utilize the operation of side of the centre bore of the utility model milling final drive casing, comprise the steps:
(1) at first the apical pore of workpiece is sheathed on to the path section of cup dolly, then screws top nut, by piece-holder on main clamp;
(2) utilize bolt by the large plane positioning of workpiece in the upper end of L shaped fixture;
(3) utilize the side in the slotting cutter Milling Centre hole of milling machine, guarantee the distance of side and centre bore axis;
(4) workpiece after processing is taken off on milling the limit fixture, complete the milling of final drive casing centre bore side.
because technique scheme is used, the advantage that the utility model compared with prior art has is:
the utility model be the final drive casing special use mill the limit fixture, simple in structure, easy to operate, machining accuracy and product qualified rate are high.
The accompanying drawing explanation
fig. 1 is the structural representation of final drive casing in the utility model background technology;
fig. 2 is the upward view of Fig. 1;
wherein: 1, apical pore; 2, centre bore;
fig. 3 is the top view of L shaped fixture in the utility model embodiment mono-;
fig. 4 is the structural scheme of mechanism that mills the limit fixture that the cutaway view rotation is rear and main clamp forms of A-A along the line in Fig. 3;
wherein: 3, main clamp; 30, cup dolly; 31, bolt; 32, lower nut; 33, top nut; 4, L shaped fixture; 40, counterbore.
The specific embodiment
below in conjunction with drawings and Examples, the utility model is further described:
embodiment mono-: shown in Fig. 3, Fig. 4, a kind of engineering truck final drive casing mills the limit fixture, described final drive casing is provided with apical pore, the described limit fixture that mills comprises that interval is fixedly arranged on main clamp 3 and the L shaped fixture 4 on platen, described main clamp 3 coaxially is connected and forms by step cup dolly 30 and bolt 31, and the path section diameter of described cup dolly 30 is less than described apical pore internal diameter 0.6 ~ 1.2mm.
in the present embodiment, the two ends of described bolt 31 all have screw thread, and the lower end of this bolt 31 is fixedly connected with described cup dolly 30 by lower nut 32, and the upper end of this bolt 31 is bolted with the top nut 33 be installed with on described final drive casing.
wherein being fixedly connected with described platen on one side of described L shaped fixture 4, the upper end of another side is provided with the counterbore 40 of 4 circles.
described final drive casing is provided with on ，Gai great plane, large plane and is provided with vertically installing hole, has at least the centre-to-centre spacing between a described counterbore 40 and bolt 31 to equate with the centre-to-centre spacing between described installing hole and apical pore, for the location of final drive casing.
utilize the operation of side of the centre bore of the present embodiment one milling final drive casing, comprise the steps:
(1) at first the apical pore of workpiece is sheathed on to the path section of cup dolly, then screws top nut, by piece-holder on main clamp;
(2) utilize bolt by the large plane positioning of workpiece in the upper end of L shaped fixture;
(3) utilize the side in the slotting cutter Milling Centre hole of milling machine, guarantee the distance of side and centre bore axis;
(4) workpiece after processing is taken off on milling the limit fixture, complete the milling of final drive casing centre bore side.
the utility model be the final drive casing special use mill the limit fixture, simple in structure, easy to operate, machining accuracy and product qualified rate are high.
the above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvement or replacement, these improvement or replacement also should be considered as protection domain of the present utility model.
Claims (4)
1. an engineering truck final drive casing mills the limit fixture, described final drive casing is provided with apical pore, it is characterized in that: the described limit fixture that mills comprises that interval is fixedly arranged on main clamp (3) and the L shaped fixture (4) on platen, described main clamp (3) coaxially is connected and forms by step cup dolly (30) and bolt (31), and the path section diameter of described cup dolly (30) is less than described apical pore internal diameter 0.6 ~ 1.2mm;
Wherein being fixedly connected with described platen on one side of described L shaped fixture (4), the upper end of another side is provided with 3 ~ 6 counterbores (40).
2. engineering truck final drive casing according to claim 1 mills the limit fixture, it is characterized in that: described final drive casing is provided with large plane, be provided with vertically installing hole on this large plane, have at least the centre-to-centre spacing between a described counterbore (40) and bolt (31) to equate with the centre-to-centre spacing between described installing hole and apical pore.
3. engineering truck final drive casing according to claim 1 mills the limit fixture, it is characterized in that: the upper end of described L shaped fixture (4) is provided with the described counterbore (40) of 4 circles.
4. engineering truck final drive casing according to claim 1 mills the limit fixture, it is characterized in that: the two ends of described bolt (31) all have screw thread, the lower end of this bolt (31) is fixedly connected with described cup dolly (30) by lower nut (32), and the upper end of this bolt (31) is bolted with the top nut (33) be installed with on described final drive casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320432527 CN203357075U (en) | 2013-07-21 | 2013-07-21 | Edge milling clamp of main speed reducer shell of engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320432527 CN203357075U (en) | 2013-07-21 | 2013-07-21 | Edge milling clamp of main speed reducer shell of engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203357075U true CN203357075U (en) | 2013-12-25 |
Family
ID=49804896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320432527 Expired - Fee Related CN203357075U (en) | 2013-07-21 | 2013-07-21 | Edge milling clamp of main speed reducer shell of engineering truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203357075U (en) |
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2013
- 2013-07-21 CN CN 201320432527 patent/CN203357075U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160721 |