CN111791164A - Clamp for machining top cover of inverter - Google Patents
Clamp for machining top cover of inverter Download PDFInfo
- Publication number
- CN111791164A CN111791164A CN202010841049.5A CN202010841049A CN111791164A CN 111791164 A CN111791164 A CN 111791164A CN 202010841049 A CN202010841049 A CN 202010841049A CN 111791164 A CN111791164 A CN 111791164A
- Authority
- CN
- China
- Prior art keywords
- pin
- hole
- bottom plate
- pressing plate
- ejector pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003754 machining Methods 0.000 title claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 4
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A clamp for machining a top cover of an inverter relates to the technical field of tool clamps and comprises a bottom plate, wherein a plurality of table nails for supporting workpieces are arranged on the bottom plate, one side of each table nail is correspondingly provided with a pressing mechanism, and a plurality of positioning mechanisms are arranged on the bottom plate; the pressing mechanism comprises an air cylinder arranged on the base, a pressing plate connected with the top end of a piston rod of the air cylinder and hinged plates respectively hinged to the middle of the pressing plate and the bottom plate, and the top end of the piston rod of the air cylinder is connected with the rear end of the pressing plate and can be pushed upwards to abut against the pressing plate, so that the front end of the pressing plate presses the workpiece onto the corresponding table nail. The invention can avoid the displacement caused by the driving of the elastic ejector pin to the maximum extent when the elastic ejector pin is fixed, and ensure the positioning accuracy.
Description
Technical Field
The invention relates to the technical field of tool fixtures, in particular to a fixture for machining a top cover of an inverter.
Background
In the production and processing process of the vehicle-mounted inverter, parts such as a shell, a top cover and the like of the vehicle-mounted inverter need to be processed, the existing processing method is to clamp a workpiece by a set of clamp and then process a surface and a hole of the workpiece, and for the top cover of the inverter, in order to clamp the workpiece on the clamp, an elastic ejector pin needs to be used at the bottom of the workpiece besides a clamping mechanism so as to play a role in assisting positioning and supporting.
Generally speaking, after placing the locating hole of work piece bottom on the elasticity knock pin (work piece bottom also can lean on other platform nails simultaneously), need fix the elasticity knock pin, general fixed mode all sets up a bolt in the side of elasticity knock pin, through the rotating bolt, make the side of one end of bolt support tight elasticity knock pin, however at the in-process of rotating bolt, the bolt is because self rotates and with the contact of elasticity knock pin, consequently can produce the slip friction force of certain torsion form to the elasticity knock pin, thereby can drive the elasticity knock pin to a certain extent and make the elasticity knock pin produce the displacement along its axial, finally cause the inaccurate problem of location.
Disclosure of Invention
The invention aims to provide a clamp for processing a top cover of an inverter, which can prevent an elastic ejector pin from being driven to generate displacement to a great extent when the elastic ejector pin is fixed, and ensure the accuracy of positioning.
In order to solve the technical problems, the invention adopts the following technical scheme: a clamp for machining a top cover of an inverter comprises a bottom plate, wherein a plurality of table nails used for supporting a workpiece are arranged on the bottom plate, one side of each table nail is correspondingly provided with a pressing mechanism, and a plurality of positioning mechanisms are arranged on the bottom plate; the pressing mechanism comprises an air cylinder arranged on the base, a pressing plate connected with the top end of a piston rod of the air cylinder and hinged plates respectively hinged to the middle part of the pressing plate and the bottom plate, and the top end of the piston rod of the air cylinder is connected with the rear end of the pressing plate and can push the pressing plate upwards so that the front end of the pressing plate presses the workpiece on the corresponding table nail; the positioning mechanism comprises a plurality of pin seats arranged on a bottom plate, each pin seat is provided with an elastic top pin for upwards abutting against a positioning hole at the bottom of a workpiece, the top end of each pin seat is downwards provided with a pin hole, the bottom end of each elastic top pin is inserted into the pin hole, the side surface of the bottom end of each elastic top pin is provided with a limiting block, the inner wall of the pin hole above the limiting block is provided with a limiting step for blocking the limiting block, a compression spring is arranged in the pin hole, the upper end and the lower end of the compression spring respectively abut against the bottom end of the elastic top pin and the bottom end of the pin hole, the side surface of each elastic top pin is axially provided with a strip-shaped groove, the pin seats are radially provided with threaded through holes communicated with the strip-shaped grooves, the threaded through holes are connected with bolts, a movable top pin is also arranged in the threaded through holes between the, the inner wall of the threaded through hole is correspondingly provided with a strip-shaped slideway used for clamping a strip-shaped sliding block in an axial direction, the strip-shaped sliding block can move along the strip-shaped slideway, the bolt rotates to push one end of the rod part of the bolt to the movable top pin, so that one end of the movable top pin extends into the strip-shaped groove and abuts against the elastic top pin.
Preferably, the outer wall surface of the movable knock pin is a smooth surface.
More preferably, the length of the strip-shaped groove is smaller than that of the elastic knock pin.
More preferably, the base is provided with a support member, and the bottom end of the hinge plate is hinged to the support member.
More preferably, the pin base is detachably connected with the bottom plate.
The working principle of the invention is as follows: when a workpiece is placed on the clamp, the elastic ejector pin can be ejected into the positioning hole at the bottom of the workpiece, meanwhile, the workpiece can be placed on each table nail, then, the bolt can be made to push against the movable ejector pin and extend into the strip-shaped groove to tightly abut against the elastic ejector pin in the pin hole by rotating the bolt, so that the elastic ejector pin is kept stable, then, each pressing mechanism is made to tightly press the workpiece on the corresponding table nail, and the workpiece can be clamped. In the process, the bolt is not directly contacted with the elastic ejector pin, but the movable ejector pin is used as an intermediate piece, and the movable ejector pin cannot rotate due to the movable ejector pin, so that sliding friction force in a torsion mode cannot be generated on the elastic ejector pin, the elastic ejector pin can be prevented from being driven to displace to the greatest extent, and the positioning accuracy is guaranteed.
Drawings
FIG. 1 is a schematic overall structure diagram in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a positioning mechanism in an embodiment;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
fig. 4 is a schematic structural view of the movable knock pin in the embodiment.
The reference signs are:
1-base plate 2-workpiece 3-table nail
4 a-cylinder 4 b-pressing plate 4 c-hinged plate
6 a-limiting block 6 b-strip groove 7-compression spring
8-bolt 9-movable top pin 9 a-strip slide block
9 b-strip slideway.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 1-4, the clamp for processing the top cover of the inverter comprises a bottom plate 1, wherein a plurality of table nails 3 used for supporting a workpiece 2 are arranged on the bottom plate 1, one side of each table nail 3 is correspondingly provided with a pressing mechanism, and a plurality of positioning mechanisms are arranged on the bottom plate 1; the pressing mechanism comprises an air cylinder 4a arranged on the base 1, a pressing plate 4b connected with the top end of a piston rod of the air cylinder 4a and hinged plates 4c respectively hinged to the middle of the pressing plate 4b and the base plate 1, and the top end of the piston rod of the air cylinder 4a is connected with the rear end of the pressing plate 4b and can push the pressing plate 4b upwards so that the front end of the pressing plate 4b presses the workpiece 2 on the corresponding table nail 3; the positioning mechanism comprises a plurality of pin seats 5 arranged on a bottom plate 1, each pin seat 5 is provided with an elastic top pin 6 used for upwards abutting against a positioning hole at the bottom of a workpiece 2, the top end of each pin seat 5 is downwards provided with a pin hole, the bottom end of each elastic top pin 6 is inserted into the pin hole, the side surface of the bottom end of each elastic top pin 6 is provided with a limiting block 6a, the inner wall of the pin hole positioned above the limiting block 6a is provided with a limiting step used for blocking the limiting block 6a, a compression spring 7 is arranged in the pin hole, the upper end and the lower end of the compression spring 7 respectively abut against the bottom end of the elastic top pin 6 and the bottom end of the pin hole, the side surface of each elastic top pin 6 is axially provided with a strip-shaped groove 6b, the pin seats 5 are radially provided with threaded through holes communicated with the strip-shaped grooves 6b, each threaded through hole is connected with a bolt 8, a movable top pin 9 is, the inner wall of the threaded through hole is correspondingly provided with a strip-shaped slideway 9b for clamping a strip-shaped sliding block 9a along the axial direction, the strip-shaped sliding block 9a can move along the strip-shaped slideway 9b, the bolt 8 is rotated, one end of the rod part of the bolt 8 can be pushed against the movable top pin 9, and therefore one end of the movable top pin 9 extends into the strip-shaped groove 6b and tightly abuts against the elastic top pin 6.
When the clamp for machining the top cover of the inverter provided by the embodiment is used, a workpiece is placed on the clamp, the elastic ejector pin 6 can be ejected into the positioning hole at the bottom of the workpiece 2, meanwhile, the workpiece 2 can be placed on each table of nail 3, then, by rotating the bolt 8, the bolt 8 can push the movable ejector pin 9 and enable the movable ejector pin 9 to extend into the strip-shaped groove 6b so as to tightly abut the elastic ejector pin 6 in the pin hole, so that the elastic ejector pin 6 is kept stable, then, each pressing mechanism presses the workpiece 2 onto the corresponding table of nail 3, and the work of clamping the workpiece 2 can be completed. In the process, the bolt 8 is not directly contacted with the elastic ejector pin 6, but the movable ejector pin 9 is used as an intermediate piece, and the movable ejector pin 9 cannot rotate due to the fact that the movable ejector pin 9 does not rotate, so that sliding friction in a torsion mode cannot be generated on the elastic ejector pin 6, the elastic ejector pin 6 can be prevented from being driven to displace to the greatest extent, and therefore the positioning accuracy is guaranteed.
Preferably, the outer wall surface of the movable knock pin 9 is smooth to reduce friction with the inner wall of the threaded through hole, so that the movable knock pin can move more smoothly.
More preferably, the length of the strip-shaped groove 6b is less than the length of the elastic knock pin 6, and the depth of the strip-shaped groove 6b is less than half the length of the movable knock pin 9, so that when the movable knock pin 9 abuts against the bottom of the strip-shaped groove 6b, a large part of the movable knock pin 9 itself remains in the threaded through hole, enabling the movable knock pin 9 to be more stable.
More preferably, the base 1 is provided with a support 4d, and the bottom end of the hinge plate 4c is hinged to the support 4 d.
In addition, in this embodiment, the pin boss 5 is detachably connected to the bottom plate 1, so that the pin boss 5 can be easily disassembled and assembled for maintenance or replacement.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (5)
1. Anchor clamps are used in processing of inverter top cap, including bottom plate (1), its characterized in that: a plurality of table nails (3) used for supporting the workpiece (2) are arranged on the bottom plate (1), a pressing mechanism is correspondingly arranged on one side of each table nail (3), and a plurality of positioning mechanisms are arranged on the bottom plate (1);
the pressing mechanism comprises an air cylinder (4 a) arranged on the base (1), a pressing plate (4 b) connected with the top end of a piston rod of the air cylinder (4 a) and hinged plates (4 c) respectively hinged to the middle of the pressing plate (4 b) and the bottom plate (1), and the top end of the piston rod of the air cylinder (4 a) is connected with the rear end of the pressing plate (4 b) and can upwards push against the pressing plate (4 b) so that the front end of the pressing plate (4 b) presses the workpiece (2) on the corresponding table nail (3);
the positioning mechanism comprises a plurality of pin bases (5) arranged on a bottom plate (1), each pin base (5) is provided with an elastic ejector pin (6) used for upwards abutting against a positioning hole at the bottom of a workpiece (2), the top end of each pin base (5) is downwards provided with a pin hole, the bottom end of each elastic ejector pin (6) is inserted into each pin hole, the side surface of the bottom end of each elastic ejector pin (6) is provided with a limit block (6 a), the inner wall of each pin hole above each limit block (6 a) is provided with a limit step used for blocking each limit block (6 a), each pin hole is internally provided with a compression spring (7), the upper end and the lower end of each compression spring (7) respectively abut against the bottom end of each elastic ejector pin (6) and the bottom end of each pin hole, the side surface of each elastic ejector pin (6) is provided with a strip-shaped groove (6 b) along the axial direction, and each pin, the screw thread through-hole is connected with bolt (8), still is equipped with one activity knock pin (9) in being located the screw thread through-hole between bar groove (6 b) and bolt (8), the side of activity knock pin (9) is provided with bar slider (9 a) along its axial, be equipped with bar slide (9 b) that are used for supplying bar slider (9 a) card to go into along its axial correspondence on the inner wall of screw thread through-hole, bar slider (9 a) can be followed bar slide (9 b) and removed, the rotating bolt (8), can make the one end in bolt (8) pole portion pushes away to activity knock pin (9), thereby makes the one end of activity knock pin (9) stretches into in bar groove (6 b) and supports tight elasticity knock pin (6).
2. The inverter top cover machining jig according to claim 1, characterized in that: the outer wall surface of the movable ejector pin (9) is a smooth surface.
3. The jig for processing an inverter top cover according to claim 2, characterized in that: the length of the strip-shaped groove (6 b) is less than that of the elastic ejector pin (6).
4. The jig for processing an inverter top cover according to claim 3, characterized in that: and a supporting piece (4 d) is arranged on the base (1), and the bottom end of the hinged plate (4 c) is hinged to the supporting piece (4 d).
5. The jig for processing an inverter top cover according to claim 4, characterized in that: the pin seat (5) is detachably connected with the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841049.5A CN111791164B (en) | 2020-08-20 | 2020-08-20 | Clamp for machining top cover of inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841049.5A CN111791164B (en) | 2020-08-20 | 2020-08-20 | Clamp for machining top cover of inverter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111791164A true CN111791164A (en) | 2020-10-20 |
| CN111791164B CN111791164B (en) | 2024-04-26 |
Family
ID=72833795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010841049.5A Active CN111791164B (en) | 2020-08-20 | 2020-08-20 | Clamp for machining top cover of inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111791164B (en) |
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| CN210081222U (en) * | 2019-06-17 | 2020-02-18 | 湖南省嘉力机械有限公司 | Controller case anchor clamps |
| CN210081224U (en) * | 2019-06-17 | 2020-02-18 | 湖南省嘉力机械有限公司 | Ignition lock seat clamp |
| CN210147496U (en) * | 2019-06-17 | 2020-03-17 | 湖南省嘉力机械有限公司 | Clamp for machining shaft hole of rear end cover of motor |
| CN210147530U (en) * | 2019-06-17 | 2020-03-17 | 湖南省嘉力机械有限公司 | Clamp for processing junction box |
| CN210550567U (en) * | 2019-06-03 | 2020-05-19 | 宝鸡法士特齿轮有限责任公司 | Anchor clamps prevent interfering floating support device |
| CN212735777U (en) * | 2020-08-20 | 2021-03-19 | 湖南省嘉力机械有限公司 | Clamp for machining top cover of inverter |
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2020
- 2020-08-20 CN CN202010841049.5A patent/CN111791164B/en active Active
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| JP2002372010A (en) * | 2001-06-18 | 2002-12-26 | Toshiba Mach Co Ltd | Collet clamp device |
| KR20050039994A (en) * | 2003-10-27 | 2005-05-03 | 한국항공우주산업 주식회사 | Spring l-pin for settling parts |
| CN103586703A (en) * | 2012-08-15 | 2014-02-19 | 新兴重工湖北三六一一机械有限公司 | Adjustable floating supporting device |
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| CN203622259U (en) * | 2013-11-13 | 2014-06-04 | 重庆迪科机电设备有限公司 | Pressure plate clamping device |
| CN203611011U (en) * | 2013-11-15 | 2014-05-28 | 云南西仪工业股份有限公司 | Floating positioning boring clamp for connection rod |
| CN103801613A (en) * | 2013-12-18 | 2014-05-21 | 浙江吉利控股集团有限公司 | Machining tool in incremental forming device |
| CN203621975U (en) * | 2013-12-31 | 2014-06-04 | 广西玉柴机器股份有限公司 | Cylinder block fixture |
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| US20170165801A1 (en) * | 2015-12-10 | 2017-06-15 | Hsu-Pin Chuang | Float type clamping mechanism |
| CN205600348U (en) * | 2016-03-31 | 2016-09-28 | 陕西法士特齿轮有限责任公司 | Unsteady supporting that can lock |
| CN205904666U (en) * | 2016-08-10 | 2017-01-25 | 安徽中鼎减震橡胶技术有限公司 | Pneumatics is torn open and is traded screw frock |
| CN107160309A (en) * | 2017-07-07 | 2017-09-15 | 苏州华徕光电仪器有限公司 | A kind of clamping structure |
| CN207283419U (en) * | 2017-09-20 | 2018-04-27 | 昆山鸿图电子有限公司 | Clamp-type inverter |
| CN207508714U (en) * | 2017-11-02 | 2018-06-19 | 内蒙古北方重工业集团有限公司 | The element floating support device adjusted with wedge mechanism |
| CN209223615U (en) * | 2018-11-06 | 2019-08-09 | 湖南省嘉力机械有限公司 | A kind of oil pump drive end bearing bracket fixture |
| CN210550567U (en) * | 2019-06-03 | 2020-05-19 | 宝鸡法士特齿轮有限责任公司 | Anchor clamps prevent interfering floating support device |
| CN210147496U (en) * | 2019-06-17 | 2020-03-17 | 湖南省嘉力机械有限公司 | Clamp for machining shaft hole of rear end cover of motor |
| CN210081224U (en) * | 2019-06-17 | 2020-02-18 | 湖南省嘉力机械有限公司 | Ignition lock seat clamp |
| CN210081222U (en) * | 2019-06-17 | 2020-02-18 | 湖南省嘉力机械有限公司 | Controller case anchor clamps |
| CN210147530U (en) * | 2019-06-17 | 2020-03-17 | 湖南省嘉力机械有限公司 | Clamp for processing junction box |
| CN110216508A (en) * | 2019-07-05 | 2019-09-10 | 南京欧创机电有限公司 | Auxiliary support and clamping linkage device |
| CN212735777U (en) * | 2020-08-20 | 2021-03-19 | 湖南省嘉力机械有限公司 | Clamp for machining top cover of inverter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111791164B (en) | 2024-04-26 |
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