CN214444781U - Clamp for finish machining of front end face, rear end face and top cover face of gearbox middle shell - Google Patents
Clamp for finish machining of front end face, rear end face and top cover face of gearbox middle shell Download PDFInfo
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- CN214444781U CN214444781U CN202120578411.4U CN202120578411U CN214444781U CN 214444781 U CN214444781 U CN 214444781U CN 202120578411 U CN202120578411 U CN 202120578411U CN 214444781 U CN214444781 U CN 214444781U
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- bottom plate
- middle shell
- pressing mechanism
- upright posts
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- 238000003754 machining Methods 0.000 title claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 72
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000002441 reversible effect Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 4
- 230000004807 localization Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a fixture for finish machining of the front and rear end faces and the top cover face of a gearbox middle shell, which comprises a bottom plate fixed on a workbench, wherein the left and right sides of the bottom plate are relatively provided with three pairs of stand columns, and the stand columns on the two sides are provided with guide limiting plates; the left middle upright post is provided with a reversible pressing mechanism positioned above and a main pressing support nail matched below; the front and rear upright posts are respectively provided with an auxiliary pressing support nail and a reversible pressing mechanism, and the outer sides of the front and rear upright posts are provided with telescopic auxiliary support nails up and down; the front and rear upright posts on the right side of the bottom plate are respectively provided with a main pressing support nail and a reversible pressing mechanism, and the outer sides of the upright posts are vertically provided with telescopic auxiliary support nails; the right middle upright post is provided with an auxiliary pressing support nail and a reversible pressing mechanism; a plurality of vertical auxiliary supporting nails and two positioning pins are arranged between the left and right upright posts of the bottom plate. The utility model discloses rational in infrastructure, the clamping is swift, and the support and the locating position of part are established in same position, and greatly reduced part probability of quivering prolongs the cutter life-span.
Description
Technical Field
The utility model relates to an anchor clamps of gearbox mesochite processing, concretely relates to anchor clamps that are used for preceding, rear end face of finish machining gearbox mesochite and top cap face.
Background
The gearbox middle shell is an important part in a gearbox assembly and comprises a shell, wherein a plurality of reinforcing ribs are arranged on the top surface and the bottom surface of the shell, and the reinforcing ribs are connected with each other; the reinforcing ribs are positioned at different height positions of the top surface and the bottom surface of the shell. The front end face of the shell is provided with a flange connecting face, the flange connecting face is provided with a plurality of flange connecting holes, the flange connecting holes are used for fixing the front shell on the front end face of the middle shell, and two holes are used for positioning the position of the front shell on the middle shell.
In the process of implementing the present invention, the inventor finds that:
the gearbox middle shell vibrates greatly when being processed by a horizontal processing center, and the clamp has certain support property and can bear certain dynamic load and static load, so that the parts cannot move in the processing process; otherwise, the size of the part is out of tolerance, and the normal work of the assembled gearbox is influenced. The existing gearbox middle shell clamp is tensioned and positioned in a mode that a threaded hole on the left side surface is tensioned by a latin, and the tensioning surface is large, and the tensioning position is located at four positions, which belongs to over-positioning. Therefore, when the horizontal machining center machines parts, the parts can vibrate due to the large suspension area of the parts, and meanwhile, the parts are clamped and deformed due to over-positioning, so that the position degree, the flatness and the parallelism of the machined parts are finally easily out of tolerance.
Disclosure of Invention
In order to improve the tight stability of parts machining clamp, reduce the suspension region, avoid damaging other parts because of the product inefficacy, the utility model provides an anchor clamps that is used for preceding, rear end face of finish machining gearbox mesochite and top cap face.
Therefore, the technical scheme of the utility model is that: the utility model provides a anchor clamps that is used for preceding, rear end face of finish machining gearbox mesochite and top cap face, is including fixing the bottom plate on the workstation, its characterized in that:
three groups of upright columns which are horizontally arranged and have the same height with the middle shell of the gearbox are oppositely arranged on the left side and the right side of the bottom plate, mounting cavities are arranged in the upright columns, and guide limit plates which are matched with the outlines of the two sides of the shell of the middle shell of the gearbox are arranged on the inner sides of the upright columns on the two sides;
a reversible pressing mechanism is arranged above the position, corresponding to the left horizontal rib plate surface of the middle shell of the gearbox, of the middle upright column on the left side of the bottom plate, and a main pressing support nail matched with the middle upright column is arranged below the middle upright column; the upper parts of the positions, corresponding to the front and rear horizontal rib plate surfaces on the left side of the middle shell of the gearbox, of the front and rear upright posts are respectively provided with a turnover pressing mechanism, and the lower parts of the front and rear upright posts are provided with matched auxiliary pressing support nails; telescopic auxiliary supporting nails extending out towards the gap direction of rib plates on the left side of the middle shell of the gearbox are arranged on the outer sides of the front and rear upright posts up and down and are connected with hydraulic cylinders arranged on the upright posts;
the front and rear upright posts on the right side of the bottom plate are respectively provided with a reversible pressing mechanism above the position corresponding to the right horizontal rib plate surface of the middle shell of the gearbox and a main pressing support nail below the reversible pressing mechanism; telescopic auxiliary support nails extending out towards the gap direction of rib plates at the right side of the middle shell of the gearbox are arranged at the upper part and the lower part of the outer sides of the front upright post and the rear upright post and are connected with hydraulic cylinders arranged on the upright posts; a reversible pressing mechanism is arranged above the position corresponding to the right horizontal rib plate surface of the middle shell of the gearbox on the right middle upright post, and a matched auxiliary pressing support nail is arranged below the right middle upright post;
a plurality of auxiliary supporting nails in the vertical direction are respectively arranged between the front and back upright posts and between the upright posts on the two sides of the bottom plate, and positioning pins are respectively arranged at the positions corresponding to the assembly threaded holes and the pipe threaded holes on the bottom surface of the middle shell of the gearbox;
wherein: the main compression support nail is a fixed support nail and is fixed on the bottom plate through a mounting seat; the auxiliary pressing support nail and the auxiliary support nail are floating support nails and are connected with corresponding hydraulic cylinders, and the hydraulic cylinders are fixed on the bottom plate through mounting seats;
during the use, the direction limiting plate is used for advancing the primary localization when putting into the gearbox mesochite, and the locating pin is used for carrying out the horizontal direction to the gearbox mesochite and removes spacingly, and three main compresses tightly supporting nail and is used for supporting the location in the vertical direction of gearbox mesochite, and the hold-down mechanism that can overturn compresses tightly supporting nail cooperation with the main and is used for pressing from both sides tight location in the vertical direction of gearbox mesochite, supplementary compress tightly supporting nail and the hold-down mechanism cooperation that can overturn, scalable supplementary supporting nail all is used for supplementary compressing tightly, prevent vibrating in the processing.
The technical scheme is further improved as follows: the turnover pressing mechanism comprises a base fixed on the stand column, a hydraulic cylinder is arranged in the base, a tongue depressor is fixed at the top of a piston rod of the hydraulic cylinder and hinged to the base, and the tongue depressor is turned over through the extension of the piston rod. The reversible pressing mechanism is simple and practical in structure and low in manufacturing cost.
The technical scheme is further improved as follows: and the oil circuit of the hydraulic cylinder is provided with a sequence valve, and the sequence valve is arranged on the bottom plate. The method is realized by a sequence valve: the main pressing pressure of the main pressing support nail and the main pressing pressure of the reversible pressing mechanism are greater than the auxiliary supporting pressure of the telescopic auxiliary support nail, and the auxiliary supporting pressure is greater than the auxiliary pressing pressure of the auxiliary pressing support nail and the auxiliary pressing pressure of the reversible pressing mechanism.
The technical scheme is further improved as follows: and the bottom plate is also fixedly provided with an energy accumulator capable of compensating pressure loss, and the energy accumulator is connected with the sequence valve and is used for compensating the clamping pressure of the pressing mechanism.
The technical scheme is further improved as follows: the positioning pin is an elastic taper pin, and a built-in spring is arranged in a mounting seat for mounting the positioning pin, so that a clamping gap can be eliminated.
Has the advantages that: the utility model discloses the structure adopts pure mechanical structure design and control, and the clamping is swift, need not to install other control system, has hydraulic oil just can move, has improved the security and the reliability of system operation. Meanwhile, the supporting position and the positioning position of the gearbox middle shell are arranged at the same place through the clamp, so that the probability of part vibration in machining is greatly reduced, and the service life of the cutter is prolonged.
Drawings
Fig. 1 is a usage state diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a view from a-a in fig. 4.
Fig. 6 is a perspective view of the middle shell of the transmission of the present invention.
Fig. 7 is a schematic view of the corresponding positioning portion of the clamp of fig. 6.
Shown in the figure: 1. a base plate; 2. a column; 3. a guide limit plate; 4. a main compression support nail; 5. the pressing mechanism can be turned over; 51. a tongue depressor; 6. auxiliary pressing support nails; 7. a retractable auxiliary support nail; 8. auxiliary support nails; 9. positioning pins; 10. a sequence valve; 11. an accumulator;
A. a gearbox middle shell; B. a horizontal rib plate surface; C. a tube threaded hole; D. and assembling position threaded holes.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiment should not be construed as limiting the present invention.
It should be noted that: the connection surface of the gearbox middle shell and the front shell is defined as a front end surface, the connection surface of the gearbox middle shell and the rear shell is defined as a rear end surface, two side surfaces are provided with a plurality of rib plates which are longitudinally and transversely connected, and one side of the bottom is provided with rib plates which are arranged in a crossed mode and is provided with an assembly threaded hole and a pipe threaded hole. (as shown in FIGS. 6-7)
The utility model discloses as shown in fig. 1 to 5:
a clamp for finish machining of the front end surface, the rear end surface and the top cover surface of a middle shell of a gearbox comprises a bottom plate 1 fixed on a workbench,
the left side and the right side of the bottom plate are respectively and oppositely provided with three upright posts 2 which are horizontally arranged and have the height corresponding to that of the middle shell of the gearbox, mounting cavities are arranged in the upright posts, and the inner sides of the upright posts at the two sides are provided with guide limit plates 3 which are matched with the profiles of the two sides of the shell of the middle shell A of the gearbox;
a reversible pressing mechanism 5 is arranged above a position, corresponding to the horizontal rib plate surface B on the left side of the middle shell of the gearbox, of the middle upright column on the left side of the bottom plate, a main pressing support nail 4 which is vertically upward is arranged on the bottom surface of the horizontal rib plate surface right below the reversible pressing mechanism, and the main pressing support nail is fixed on the bottom plate 1 through a base; the upper parts of the front and rear upright posts, which correspond to the position B of the horizontal rib plate surface at the left side of the middle shell of the gearbox, are respectively provided with a turnover pressing mechanism 5, the bottom surface of the horizontal rib plate surface right below the turnover pressing mechanism is provided with a vertical upward auxiliary pressing support nail 6, the lower end of the auxiliary pressing support nail is connected with a hydraulic cylinder, and the hydraulic cylinder is fixed on the bottom plate; telescopic auxiliary supporting nails 7 extending out towards the gap direction of rib plates on the left side of the middle shell of the gearbox are arranged on the outer sides of the front and rear upright posts up and down and are connected with hydraulic cylinders arranged on the upright posts;
the front and rear upright posts on the right side of the bottom plate 1 are respectively provided with a reversible pressing mechanism 5 at the position corresponding to the horizontal rib plate surface on the right side of the middle shell of the gearbox, and a main pressing support nail 4 matched with the reversible pressing mechanism is arranged right below the reversible pressing mechanism; the upper part and the lower part of the outer side of the upright post are provided with telescopic auxiliary supporting nails 7 which extend out towards the gap direction of the rib plate at the right side of the middle shell of the gearbox; a reversible pressing mechanism 5 is arranged above the position corresponding to the right horizontal rib plate surface of the middle shell of the gearbox on the right middle upright post, a matched auxiliary pressing support nail 6 is arranged right below the reversible pressing mechanism, the lower end of the auxiliary pressing support nail is connected with a hydraulic cylinder, and the hydraulic cylinder is fixed on the bottom plate;
a plurality of auxiliary supporting nails 8 in the vertical direction are respectively arranged between the front and back upright posts on the outer side of the bottom plate 1 and between the upright posts on the outer side of the bottom plate, the lower ends of the auxiliary supporting nails are connected with hydraulic cylinders, the hydraulic cylinders are fixed on the bottom plate through mounting seats, positioning pins 9 are respectively arranged at positions corresponding to the positions of a middle shell bottom surface assembling threaded hole D and a pipe threaded hole C of the gearbox, the positioning pins are elastic taper pins, and built-in springs are arranged in the mounting seats for mounting the positioning pins;
wherein: the main compression support nail is a fixed support nail, and the auxiliary compression support nail and the auxiliary support nail are floating support nails (the floating support nails are standard parts).
The turnable pressing mechanism 5 comprises a base fixed on the stand column, a hydraulic cylinder is arranged in the base, a tongue depressor 51 is fixed at the top of a piston rod of the hydraulic cylinder, the tongue depressor is hinged to the base at the same time, and the tongue depressor is turned over through the stretching of the piston rod (the text description of the turnable pressing mechanism can be known as the conventional technology in the field, so that drawings are not provided independently).
The oil circuit of the hydraulic cylinder is provided with a sequence valve 10 which is arranged on the bottom plate 1. The method is realized by a sequence valve: the main pressure of compressing tightly the support nail and can overturn hold-down mechanism compresses tightly pressure and is greater than the supplementary support pressure of scalable supplementary support nail, and supplementary support pressure is greater than the supplementary pressure that compresses tightly the support nail and can overturn hold-down mechanism, simultaneously according to this pressure size characteristic, realize the order of operation successively, promptly: the action of the reversible pressing mechanism is matched with the main pressing support nail for pressing, the telescopic auxiliary support nail is ejected out after 5 seconds, the auxiliary support nail stops and is automatically locked after being contacted with a workpiece, meanwhile, the action of the reversible pressing mechanism is matched with the auxiliary pressing support nail for auxiliary pressing, the auxiliary support nail extends out for auxiliary limiting, and the action can be realized without other control systems and hydraulic oil.
An energy accumulator 11 which can compensate pressure loss is also fixed on the bottom plate, and the energy accumulator is connected with the sequence valve and is used for compensating the clamping pressure of the pressing mechanism.
A pressure gauge is arranged on an oil way of the clamp, so that the pressure of the oil way can be observed conveniently; hanging rings 12 are further arranged on two sides of the bottom plate, so that the clamp can be moved conveniently.
The utility model discloses a theory of operation:
when the hydraulic press is used, the front end face and the rear end face of a gearbox middle shell to be machined are horizontally placed, the gearbox middle shell is placed into a clamp for primary positioning under the guiding action of a guiding limiting plate, two positioning pins of the clamp are inserted into an assembly threaded hole and a pipe threaded hole of the gearbox middle shell under the guiding action of the guiding limiting plate, horizontal rib plate surfaces on two sides of the gearbox middle shell are attached to three-point supporting surfaces formed by three main pressing supporting nails on the clamp (the lowest position of the gearbox middle shell is in a suspended state after supporting is formed), then a hydraulic station is started, a workpiece clamping button is clicked, hydraulic oil sequentially enters each hydraulic cylinder through a sequence valve, each hydraulic cylinder starts to act to press the gearbox middle shell to be machined, an oil way is disconnected from the hydraulic station, the gearbox middle shell is in a pressure maintaining state, and machining is started; after the machining is finished, a hydraulic station is started (normally opened in actual machining), an oil path is connected, a workpiece loosening button is clicked, piston rods of all hydraulic cylinders retract, a machined gearbox middle shell is loosened, and then the material can be discharged.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a anchor clamps that is used for preceding, rear end face of finish machining gearbox mesochite and top cap face, is including fixing the bottom plate on the workstation, its characterized in that:
three groups of upright columns which are horizontally arranged and have the same height with the middle shell of the gearbox are oppositely arranged on the left side and the right side of the bottom plate, mounting cavities are arranged in the upright columns, and guide limit plates which are matched with the outlines of the two sides of the shell of the middle shell of the gearbox are arranged on the inner sides of the upright columns on the two sides;
a reversible pressing mechanism is arranged above the position, corresponding to the left horizontal rib plate surface of the middle shell of the gearbox, of the middle upright column on the left side of the bottom plate, and a main pressing support nail matched with the middle upright column is arranged below the middle upright column; the upper parts of the positions, corresponding to the front and rear horizontal rib plate surfaces on the left side of the middle shell of the gearbox, of the front and rear upright posts are respectively provided with a turnover pressing mechanism, and the lower parts of the front and rear upright posts are provided with matched auxiliary pressing support nails; telescopic auxiliary supporting nails extending out towards the gap direction of rib plates on the left side of the middle shell of the gearbox are arranged on the outer sides of the front and rear upright posts up and down and are connected with hydraulic cylinders arranged on the upright posts;
the front and rear upright posts on the right side of the bottom plate are respectively provided with a reversible pressing mechanism above the position corresponding to the right horizontal rib plate surface of the middle shell of the gearbox and a main pressing support nail below the reversible pressing mechanism; telescopic auxiliary support nails extending out towards the gap direction of rib plates at the right side of the middle shell of the gearbox are arranged at the upper part and the lower part of the outer sides of the front upright post and the rear upright post and are connected with hydraulic cylinders arranged on the upright posts; a reversible pressing mechanism is arranged above the position corresponding to the right horizontal rib plate surface of the middle shell of the gearbox on the right middle upright post, and a matched auxiliary pressing support nail is arranged below the right middle upright post;
a plurality of auxiliary supporting nails in the vertical direction are respectively arranged between the front and back upright posts and between the upright posts on the two sides of the bottom plate, and positioning pins are respectively arranged at the positions corresponding to the assembly threaded holes and the pipe threaded holes on the bottom surface of the middle shell of the gearbox;
wherein: the main compression support nail is a fixed support nail and is fixed on the bottom plate through a mounting seat; the auxiliary pressing support nail and the auxiliary support nail are floating support nails and are connected with corresponding hydraulic cylinders, and the hydraulic cylinders are fixed on the bottom plate through mounting seats;
during the use, the direction limiting plate is used for advancing the primary localization when putting into the gearbox mesochite, and the locating pin is used for carrying out the horizontal direction to the gearbox mesochite and removes spacingly, and three main compresses tightly supporting nail and is used for supporting the location in the vertical direction of gearbox mesochite, and the hold-down mechanism that can overturn compresses tightly supporting nail cooperation with the main and is used for pressing from both sides tight location in the vertical direction of gearbox mesochite, supplementary compress tightly supporting nail and the hold-down mechanism cooperation that can overturn, scalable supplementary supporting nail all is used for supplementary compressing tightly, prevent vibrating in the processing.
2. The jig for finish machining front and rear end faces and a top cover face of a transmission center housing according to claim 1, wherein: the turnover pressing mechanism comprises a base fixed on the stand column, a hydraulic cylinder is arranged in the base, a tongue depressor is fixed at the top of a piston rod of the hydraulic cylinder and hinged to the base, and the tongue depressor is turned over through the extension of the piston rod.
3. A jig for finish machining front and rear end faces and a top cover face of a transmission center housing according to claim 1 or 2, wherein: and the oil circuit of the hydraulic cylinder is provided with a sequence valve, and the sequence valve is arranged on the bottom plate.
4. A jig for finish machining front and rear end faces and a top cover face of a transmission center housing according to claim 1 or 2, wherein: and the bottom plate is also fixedly provided with an energy accumulator capable of compensating pressure loss, and the energy accumulator is connected with the sequence valve and is used for compensating the clamping pressure of the pressing mechanism.
5. A jig for finish machining front and rear end faces and a top cover face of a transmission center housing according to claim 3, wherein: and the bottom plate is also fixedly provided with an energy accumulator capable of compensating pressure loss, and the energy accumulator is connected with the sequence valve and is used for compensating the clamping pressure of the pressing mechanism.
6. A jig for finish machining the front and rear end faces and the top cover face of a transmission casing according to claim 1, 2 or 5 wherein: the positioning pin is an elastic taper pin, and a built-in spring is arranged in a mounting seat for mounting the positioning pin.
7. The jig for finish machining gearbox center housing front and rear end faces and a top cover face according to claim 4, characterized in that: the positioning pin is an elastic taper pin, and a built-in spring is arranged in a mounting seat for mounting the positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578411.4U CN214444781U (en) | 2021-03-22 | 2021-03-22 | Clamp for finish machining of front end face, rear end face and top cover face of gearbox middle shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578411.4U CN214444781U (en) | 2021-03-22 | 2021-03-22 | Clamp for finish machining of front end face, rear end face and top cover face of gearbox middle shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214444781U true CN214444781U (en) | 2021-10-22 |
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ID=78157389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120578411.4U Active CN214444781U (en) | 2021-03-22 | 2021-03-22 | Clamp for finish machining of front end face, rear end face and top cover face of gearbox middle shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214444781U (en) |
-
2021
- 2021-03-22 CN CN202120578411.4U patent/CN214444781U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 442004 No.60 Xinjiang road, Zhangwan District, Shiyan City, Hubei Province Patentee after: Dongshi Automotive Power Parts (Hubei) Co.,Ltd. Address before: 442004 No.60 Xinjiang road, Zhangwan District, Shiyan City, Hubei Province Patentee before: DONGFENG (SHIYAN) ENGINE PARTS LTD. |
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| CP01 | Change in the name or title of a patent holder |