CN213380394U - Work fixture for processing crank side step surface - Google Patents
Work fixture for processing crank side step surface Download PDFInfo
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- CN213380394U CN213380394U CN202022384210.9U CN202022384210U CN213380394U CN 213380394 U CN213380394 U CN 213380394U CN 202022384210 U CN202022384210 U CN 202022384210U CN 213380394 U CN213380394 U CN 213380394U
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- crank
- long screw
- heightened
- bottom plate
- supporting
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Abstract
The utility model relates to a frock clamp is used in processing of crank side step face belongs to machining technical field. Frock clamp includes the bottom plate, be fixed with increase V type iron, long screw and parallels on the bottom plate in proper order, the top of increasing V type iron is equipped with ascending V type opening, the cover has the clamp plate on the long screw, and the long screw has fastening nut at the upside threaded connection of clamp plate. The utility model discloses a frock clamp is used for the crank to fix when horizontal milling machine adds man-hour, increases V type iron and parallels and supports articulate downside both ends respectively, and the long screw rod passes from the crank in the middle of, and clamp plate on it pushes down the crank from the upside down through fastening nut and fixes convenient to use is reliable.
Description
Technical Field
The utility model relates to the technical field of machining, concretely relates to frock clamp is used in processing of crank side step face.
Background
In the modern machining process, the two-plane machining of the crank is usually carried out on vertical machining equipment such as a planer type milling machine (a machine tool machining spindle is vertical), and a crank workpiece is horizontally placed during machining.
When a horizontal (machine tool machining spindle horizontal) milling machine needs to be used for machining, a crank needs to be placed vertically, and a machining surface is perpendicular to the machine tool machining spindle. Due to the size limitation of the ram of the boring and milling machine, when a cutter is to be milled to the lowest edge of a crank plane, the ram collides with a workbench, so that a workpiece needs to be lifted, and when the cutter is fed to the lowest edge, a sufficient safety gap exists between the ram and the workbench.
In order to heighten the crank, the existing method is to stack various cushion blocks together, place the cushion blocks under the crank, and press the cushion blocks by using a screw and a pressing plate to fix the crank. However, in most cases, the lower edge of the crank is not a plane, so that after the crank is very high in padding, the crank is easy to displace in the machining process due to the transverse cutting force of the cutter, and the machining effect is affected due to unstable position.
Disclosure of Invention
For solving the problem that exists among the prior art, the utility model discloses a frock clamp is used in processing of crank side step face has been designed, and the crank to processing on the horizontal milling machine that can be fine is fixed, and it is convenient to use, and the effect is reliable.
The utility model adopts the technical proposal that: frock clamp includes the bottom plate, be fixed with increase V type iron, long screw and parallels on the bottom plate in proper order, the top of increasing V type iron is equipped with ascending V type opening, the cover has the clamp plate on the long screw, and the long screw has fastening nut at the upside threaded connection of clamp plate. The crank is clamped when the crank is fixed, the other end of the crank is supported through the heightened sizing block, the middle of the crank is fastened through a pressing plate of the long screw, and the crank is firmly fixed on the workbench, so that the crank is stable and reliable. Meanwhile, the tool clamp is integrally arranged on the bottom plate, and can be integrally hoisted to the workbench to be installed and fixed during use, so that the application is convenient.
Furthermore, a jack is arranged at the top of the sizing block. The supporting height of the jack is adjustable, and the jack is well suitable for cranks of different sizes and heights.
Furthermore, the bottom plate is provided with a heightened supporting top between the heightened V-shaped iron and the long screw, the lower part of the heightened supporting top is in a cone shape, the top is provided with an internal thread hole along the axis, and the supporting screw is in threaded connection with the top. The supporting height of the heightening supporting top is adjusted by screwing the supporting screw rod, the range of adjustable height is large, the heightening supporting top can be used for supporting the lower sides of cranks of different models, and when the supporting height is large, the stability is reduced, so that the heightening supporting top is arranged between the heightening V-shaped iron and the sizing block, and plays a role in auxiliary supporting of a crank workpiece.
Furthermore, the bottom plate is provided with a through hole at the joint of the long screw rod, and the bottom of the long screw rod penetrates through the through hole and is connected to a T-shaped groove of a milling machine workbench during application. Therefore, the crank workpiece can be directly fixed on the workbench through the long screw, and the stability of the crank workpiece is improved.
Furthermore, a plurality of internal thread mounting holes are respectively formed in the connecting positions of the bottom plate corresponding to the heightened V-shaped iron, the heightened supporting top and the sizing block, and the bottoms of the heightened V-shaped iron, the heightened supporting top and the sizing block are respectively fixed on the bottom plate through bolts. The frock clamp can set up the heightened V type iron of co-altitude, heighten supporting crown and parallels according to the user demand, and the bolt installation is changed conveniently.
Compared with the prior art, the utility model discloses a crank side step face processing is with frock clamp's progress part lies in:
(1) the V-shaped opening of the heightened V-shaped iron can be well adapted to the crank journal of the crank, and the crank journal is clamped when being fixed, so that the problem of unstable fixation of the curved surface is solved.
(2) The jack with adjustable height is arranged on the sizing block, so that the supporting and fixing requirements of different sizes of crank throw necks of different models can be met.
(3) And a heightened supporting top is arranged for auxiliary supporting, so that the stability of crank clamping is further improved.
(4) The middle part of the bottom plate is provided with a through hole, the bottom of the long screw rod can pass through the T-shaped groove which is directly connected with the milling machine workbench, the workpiece is directly connected with the workbench into a whole, and the clamping stability is further improved.
(5) Each supporting piece on the tool clamp is fixed on the bottom plate through a bolt, and can be directly and integrally hoisted to the workbench when in use, so that the use is convenient; meanwhile, the replacement of the supporting piece is more convenient.
Drawings
FIG. 1 is a schematic view of a sectional structure of a work fixture for machining a step surface on a side surface of a crank
In the figure, a bottom plate 1, 2 heightened V-shaped iron, 3 sizing blocks, 4 long screws, 5 heightened supporting jacks, 6 crank workpieces, 11 perforations, 12 internal thread mounting holes, 21-V-shaped openings, 31 jacks, 41 pressing plates, 42 fastening nuts and 51 supporting screws
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.
As shown in FIG. 1, the utility model discloses an embodiment of a work fixture for processing crank side step surface has been designed, the work fixture includes bottom plate 1, increases V type iron 2, parallels 3, long screw 4 and increases the support top 5. A plurality of internal thread mounting holes 12 are formed in the bottom plate 1, and the bottoms of the heightened V-shaped iron 2, the sizing block 3 and the heightened supporting top 5 are respectively mounted on the bottom plate 1 through bolts. The heightened V-shaped iron 2 and the sizing block 3 are respectively positioned at two ends of the bottom plate 1, and the heightened supporting top 5 is positioned between the heightened V-shaped iron and the sizing block. The middle part of the bottom plate 1 is provided with a through hole 11, the long screw rod 4 is connected with the middle part of the through hole 11 of the bottom plate 1, and the bottom of the long screw rod passes through the through hole 11 of the bottom plate 1 downwards.
The top of the heightened V-shaped iron 2 is provided with an upward opening V-shaped opening 21 for supporting a crank journal. The top of the sizing block 3 is connected with a jack 31 through a bolt, and the height of the jack 31 is adjustable and is used for supporting the lower surfaces of the two crank arms of the crank.
The lower part of the heightened supporting top 5 is in a round table shape, the top is provided with an internal thread hole along the axis, and is in threaded connection with a supporting screw 51. The supporting height of the heightening supporting top 5 is adjusted by screwing the supporting screw rod 51, the height-adjustable range of the supporting screw rod 51 is large, the heightening supporting top can be used for supporting the lower sides of cranks of different models, and when the supporting height is large, the stability is reduced, so that the heightening supporting top is arranged between the heightening V-shaped iron 2 and the sizing block 3, and the heightening supporting top plays a role in auxiliary supporting for the crank workpiece.
The long screw 4 is fitted with a pressing plate 41, and a fastening nut 42 is screwed to the upper side of the pressing plate 41.
When the tool clamp is installed and applied, the tool clamp can be integrally hoisted to a workbench of a milling machine, the V-shaped iron 2 is heightened to support the crank journal of the crank workpiece 6, the jack 31 of the sizing block 3 supports the lower surfaces of the two crank arms of the crank workpiece 6, and the heightened support jack 5 is used for carrying out auxiliary support on the middle part of the crank workpiece 6 by adjusting the height of the support screw 51. The pressing plate 41 of the long screw rod 4 presses the crank from the upper side downwards through the fastening nut 42, and the bottom of the long screw rod 4 penetrates through the bottom plate 1 and then is connected into a T-shaped groove of a milling machine workbench.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and the description of the invention.
Claims (5)
1. The utility model provides a work fixture is used in processing of crank side step face, a serial communication port, work fixture includes the bottom plate, be fixed with in proper order on the bottom plate and increase V type iron, long screw and parallels, the top of increasing V type iron is equipped with ascending V type opening, the cover has the clamp plate on the long screw, and long screw has fastening nut at the upside threaded connection of clamp plate.
2. The tool clamp for machining the step face on the side face of the crank, according to claim 1, is characterized in that a jack is arranged at the top of the sizing block.
3. The tool clamp for machining the step surface on the side surface of the crank, according to claim 2, is characterized in that a heightened supporting top is arranged between the heightened V-shaped iron and the long screw on the bottom plate, the lower portion of the heightened supporting top is in a shape of a circular truncated cone, an internal thread hole is formed in the top portion along the axis, and the supporting screw is in threaded connection with the top plate.
4. The tool clamp for machining the step surface on the side surface of the crank, according to claim 3, is characterized in that a through hole is formed in the connecting portion of the long screw on the bottom plate, and the bottom of the long screw penetrates through the through hole downwards.
5. The tool clamp for machining the crank side step surface as claimed in claim 4, wherein a plurality of internal thread mounting holes are respectively formed in the connecting portions of the bottom plate corresponding to the heightened V-shaped iron, the heightened supporting top and the sizing block, and the bottoms of the heightened V-shaped iron, the heightened supporting top and the sizing block are respectively fixed to the bottom plate through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022384210.9U CN213380394U (en) | 2020-10-23 | 2020-10-23 | Work fixture for processing crank side step surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022384210.9U CN213380394U (en) | 2020-10-23 | 2020-10-23 | Work fixture for processing crank side step surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213380394U true CN213380394U (en) | 2021-06-08 |
Family
ID=76190171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022384210.9U Active CN213380394U (en) | 2020-10-23 | 2020-10-23 | Work fixture for processing crank side step surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213380394U (en) |
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2020
- 2020-10-23 CN CN202022384210.9U patent/CN213380394U/en active Active
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