CN113909951A - Heavy truck drive axle final drive casing assembly adds clamping apparatus - Google Patents
Heavy truck drive axle final drive casing assembly adds clamping apparatus Download PDFInfo
- Publication number
- CN113909951A CN113909951A CN202111372022.7A CN202111372022A CN113909951A CN 113909951 A CN113909951 A CN 113909951A CN 202111372022 A CN202111372022 A CN 202111372022A CN 113909951 A CN113909951 A CN 113909951A
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- CN
- China
- Prior art keywords
- clamp
- speed reducer
- main speed
- reducer shell
- shell assembly
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a clamp for processing a main speed reducer shell assembly of a heavy truck drive axle, which mainly comprises a clamp body, a hoisting ring, lower cushion blocks, pressure plates and supports, wherein the periphery of the clamp body is respectively fixed with one lower cushion block; the cylindrical pin and the diamond pin are respectively fixed on the fixture body through the pin holes, the hollowed-out size of the fixture body is increased, the hollowed-out shape is symmetrical and simplified, namely, the fixture can be fixed on a machine tool without being disassembled, the processing of various holes and surfaces which are in various sizes and applied to speed reducer shells of different axles is completed, the convenience is improved, and the overall quality of the fixture body is reduced; the position of a fabrication hole matched with the main speed reducer shell is selected for positioning, so that clearance fit is realized, and the precision of pin hole positioning is improved; and meanwhile, the positioning control is carried out by matching with the pressing plate, so that the subsequent hole machining operation of the reducer shell is realized.
Description
Technical Field
The invention belongs to the technical field of heavy truck axles, and particularly relates to a machining clamp for a main speed reducer shell assembly of a heavy truck drive axle.
Background
The main reducer plays the roles of reducing the speed ratio and increasing the output torque in the working process of the drive axle of the heavy truck, a shell for arranging the main reducer and accessories is used as a basic part, the shape and the position precision of the shell are high and low, and the operation effect of the whole reducer can not be ignored; the processing of a qualified main reducer shell is an important premise for ensuring the mutual position relationship of parts such as shafts, bearings, gears, sleeves and the like, and the design and selection of a positioning clamp for processing the main reducer shell and an assembly are very important.
The machining mode of the main speed reducer shell in the current production practice is mainly that after positioning operation is carried out through a clamp, a machining center is reamed with planes, inner holes are bored, the internal structure is simple, the wall thickness is not uniform, the machining difficulty is high, and the position precision of the aperture and the hole pitch of various holes in the machining procedure is realized on the one hand, the machining procedure is accurate and reasonable, and more importantly, the position positioning accuracy and the simplicity of the clamp body are realized; generally, a single clamp body is generally configured for a single part of a shell type clamp body in a workshop, the universality is poor, and sometimes, the phenomenon of inaccurate positioning exists, so that the processing precision of the part is seriously influenced; meanwhile, the position adjustment and replacement of the process device for many times are not beneficial to realizing the continuous processing of various parts on one machine tool.
Disclosure of Invention
The invention provides a clamp for machining a main speed reducer shell assembly of a heavy truck drive axle, which aims to solve the technical problems that: the problems of single clamp, easiness in occurrence of processing deviation and low positioning and clamping efficiency are solved.
In order to solve the technical problem, the invention provides a clamp for machining a main speed reducer shell assembly of a heavy truck drive axle, which is characterized in that: the clamp mainly comprises a clamp body 1, a hoisting ring 2, lower cushion blocks 3, pressure plates and supports 7, wherein the periphery of the clamp body 1 is respectively fixed with one lower cushion block 3, each lower cushion block is provided with one pressure plate, the pressure plates are provided with slotted holes, and the positions corresponding to the pressure plates are provided with one support fixed on the clamp body; the cylindrical pin 8 and the diamond-shaped pin 9 are respectively fixed on the fixture body 1 through pin holes, and the positions of the two pin holes are coincided with the positions of the process holes of the main speed reducer shell assembly to be processed.
Has the advantages that: the clamp increases the hollowed-out size of the clamp body, simplifies the design by symmetrical hollowed-out shapes, and increases the universality compared with special clamps which are used in the existing workshop and follow the appearance of the reducer shell and are used for different parts, namely, the clamp can be fixed on a machine tool without being disassembled, so that the machining of various holes and surfaces on the reducer shell with various sizes and applied to different axles (such as a middle axle and a rear axle) is completed, the convenience is improved, and the overall quality of the clamp body is reduced; the positioning selects the position of a fabrication hole matched with the main speed reducer shell, the position is convenient for clamping, and meanwhile, positioning pins in different shapes are matched to realize clearance fit, so that the precision of pin hole positioning is improved; meanwhile, the positioning control is carried out by matching with the pressing plate, and the subsequent hole machining operation of the reducer shell is realized. The fixture device meets the technical requirements of the process in practical production, effectively solves the problems of single fixture, easiness in occurrence of processing deviation and low positioning and clamping efficiency, can control the clamping and positioning time within 1min each time, and effectively achieves the production preparation targets of uniform part processing datum and quick and accurate clamping.
Drawings
FIG. 1 is a schematic structural view of a main reduction housing assembly machining fixture.
Wherein: 1. the fixture body 2, the hoisting ring 3, the lower cushion block 4, the left pressing plate 5, the right pressing plate 6, the tightening nut 7, the support 8, the cylindrical pin 9 and the diamond-shaped pin 10 are used as positioning devices.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention is provided.
The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle is of an up-and-down symmetrical structure along a horizontal center line, mainly comprises a clamp body 1, a hoisting ring 2, a lower cushion block 3, a left pressing plate 4, a right pressing plate 5, a screwing nut 6, a support 7, a cylindrical pin 8, a diamond pin 9 and a positioning device 10, and can be commonly used for machining the main speed reducer shell assembly of the heavy truck type middle axle and the main speed reducer shell assembly of a rear axle.
The top of the clamp body 1 is connected with a hoisting ring 2 for matching transfer with a hoisting tool, and the machining clamp is hoisted and placed at a proper position; the bottom of the fixture body is connected with a positioning device 10, and the positioning device 10 consists of a positioning mandrel, a key and a screw and is used for positioning the bottom of the fixture device;
the periphery of the clamp body 1 is respectively fixed with a lower cushion block 3, the left pressing plate 4 or the right pressing plate 5 is installed on the lower cushion block, a slotted hole is formed in the lower cushion block, push-pull movable connection is achieved by screwing a nut 6, a support 7 is fixed on the clamp body 1 through a bolt hole and matched with the pressing plates, a cylindrical pin 8 and a diamond-shaped pin 9 are respectively fixed on the clamp body 1 through pin holes, and the positions of the two pin holes coincide with the position of a process hole of a main speed reducer shell assembly to be processed.
The middle part of the clamp body 1 is provided with a hollowed hole for placing a main speed reducing shell assembly.
The main reducer shell clamping and positioning specific implementation mode of the clamp is as follows: firstly, a main speed reducer shell assembly is flatly placed on a positioning surface of a fixture body by a lifting appliance, at the moment, the whole main speed reducer shell to be machined is accommodated in a hollowed-out part of the fixture body, an upper process hole and a lower process hole (precision requirement guarantee) of the main speed reducer shell to be machined are respectively aligned to a cylindrical pin and a diamond pin on the fixture, preliminary part positioning is completed, then further precise positioning is implemented through four pressing plates on the fixture, a left pressing plate 4 (or a right pressing plate 5) can complete four end surface positioning of the main speed reducer shell assembly through a push-pull mode and a support 7 under the matching of a lower cushion block 3, after the main speed reducer shell assembly is confirmed to be clamped, and finally, program operation and machining are controlled by a numerical control panel.
In the embodiment, the mode of four pressing plates is optimized, a limiting type press-mounting positioning mechanism can be selected, and the limiting type press-mounting positioning mechanism mainly comprises the pressing plates, a pressing plate bushing and corresponding supports.
In the above embodiment, the positions of the two positioning pin holes can be designed in a reversed way, that is, when the cylindrical pin is designed on the upper surface of the fixture body, the cylindrical pin is on the left side of the central shaft shown in fig. 1, and the diamond-shaped pin is designed on the right side of the lower surface of the fixture body; or the cylindrical pin is arranged on the right side of the central shaft, and the diamond pin is designed on the left side of the lower surface of the fixture body; when the cylindrical pin is designed on the lower surface of the clamp body, the cylindrical pin is on the left side of the central shaft, and the diamond-shaped pin is designed on the right side of the upper surface of the clamp body; or the cylindrical pin is arranged on the right side of the central shaft, the diamond pin is arranged on the left side of the upper surface of the clamp body, and the positioning before the machining of the main speed reducer shell assembly can be realized under the condition that the pin hole meets the clamping precision.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a heavy truck transaxle final drive ware shell assembly adds clamping apparatus which characterized in that: the clamp mainly comprises a clamp body 1, a hoisting ring 2, lower cushion blocks 3, pressure plates and supports 7, wherein the periphery of the clamp body 1 is respectively fixed with one lower cushion block 3, each lower cushion block is provided with one pressure plate, the pressure plates are provided with slotted holes, and the positions corresponding to the pressure plates are provided with one support fixed on the clamp body; the cylindrical pin 8 and the diamond-shaped pin 9 are respectively fixed on the fixture body 1 through pin holes, and the positions of the two pin holes are coincided with the positions of the process holes of the main speed reducer shell assembly to be processed.
2. The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle according to claim 1, wherein: the top of the clamp body 1 is connected with a hoisting ring 2.
3. The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle according to claim 1, wherein: the bottom of the fixture body is connected with a positioning device.
4. The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle according to claim 1, wherein: the middle part of the clamp body 1 is provided with a hollowed hole for placing a main speed reducing shell assembly.
5. The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle according to claim 1, wherein: the pressing plate and the support 7 complete the positioning of the four end surfaces of the main speed reducer shell assembly in a push-pull mode.
6. The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle according to claim 1, wherein: the pressure plate is replaced by a limiting press-mounting positioning mechanism.
7. The clamp for machining the main speed reducer shell assembly of the heavy truck drive axle according to claim 1, wherein: the positions of the two pin holes can be designed in an interchangeable way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372022.7A CN113909951A (en) | 2021-11-18 | 2021-11-18 | Heavy truck drive axle final drive casing assembly adds clamping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372022.7A CN113909951A (en) | 2021-11-18 | 2021-11-18 | Heavy truck drive axle final drive casing assembly adds clamping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113909951A true CN113909951A (en) | 2022-01-11 |
Family
ID=79247667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111372022.7A Pending CN113909951A (en) | 2021-11-18 | 2021-11-18 | Heavy truck drive axle final drive casing assembly adds clamping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113909951A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11104930A (en) * | 1997-10-01 | 1999-04-20 | Daihatsu Motor Co Ltd | Manufacture of positioning jig for panel member |
| CN201950235U (en) * | 2011-01-24 | 2011-08-31 | 开封畅丰车桥有限公司 | Boring fixture for cross holes on differential case |
| CN103009158A (en) * | 2012-12-27 | 2013-04-03 | 郑州精益达汽车零部件有限公司 | Work fixture for horizontal machining centre in processing passenger car differential housing |
| CN103934709A (en) * | 2014-04-03 | 2014-07-23 | 郑州精益达汽车零部件有限公司 | Fixture for rough boring of main cone bearing hole of main reducing gear of passenger car and machining of installation face of bearing pedestal |
| CN104690576A (en) * | 2014-12-01 | 2015-06-10 | 郑州精益达汽车零部件有限公司 | Tooling for machining bus final drive casing by VMC (vertical machining center) |
| CN207104403U (en) * | 2017-08-02 | 2018-03-16 | 庆铃汽车（集团）有限公司 | A kind of fixture for the processing of caliper clamping |
| CN208945643U (en) * | 2018-09-26 | 2019-06-07 | 西安昆仑工业（集团）有限责任公司 | A kind of ring parts inside skewed slot, which is processed, uses fraise jig |
-
2021
- 2021-11-18 CN CN202111372022.7A patent/CN113909951A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11104930A (en) * | 1997-10-01 | 1999-04-20 | Daihatsu Motor Co Ltd | Manufacture of positioning jig for panel member |
| CN201950235U (en) * | 2011-01-24 | 2011-08-31 | 开封畅丰车桥有限公司 | Boring fixture for cross holes on differential case |
| CN103009158A (en) * | 2012-12-27 | 2013-04-03 | 郑州精益达汽车零部件有限公司 | Work fixture for horizontal machining centre in processing passenger car differential housing |
| CN103934709A (en) * | 2014-04-03 | 2014-07-23 | 郑州精益达汽车零部件有限公司 | Fixture for rough boring of main cone bearing hole of main reducing gear of passenger car and machining of installation face of bearing pedestal |
| CN104690576A (en) * | 2014-12-01 | 2015-06-10 | 郑州精益达汽车零部件有限公司 | Tooling for machining bus final drive casing by VMC (vertical machining center) |
| CN207104403U (en) * | 2017-08-02 | 2018-03-16 | 庆铃汽车（集团）有限公司 | A kind of fixture for the processing of caliper clamping |
| CN208945643U (en) * | 2018-09-26 | 2019-06-07 | 西安昆仑工业（集团）有限责任公司 | A kind of ring parts inside skewed slot, which is processed, uses fraise jig |
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