CN212735777U - Clamp for machining top cover of inverter - Google Patents
Clamp for machining top cover of inverter Download PDFInfo
- Publication number
- CN212735777U CN212735777U CN202021744979.0U CN202021744979U CN212735777U CN 212735777 U CN212735777 U CN 212735777U CN 202021744979 U CN202021744979 U CN 202021744979U CN 212735777 U CN212735777 U CN 212735777U
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- Prior art keywords
- pin
- bottom plate
- hole
- pressing plate
- plate
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- Withdrawn - After Issue
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- 238000003754 machining Methods 0.000 title claims abstract description 6
- 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 6
- 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
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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 utility model discloses can avoid elasticity knock pin to be driven and produce the displacement to very big degree when fixed elasticity knock pin, guarantee the accuracy of location.
Description
Technical Field
The utility model belongs to the technical field of the frock clamp technique and specifically relates to indicate an anchor clamps are used in processing of dc-to-ac converter top cap.
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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anchor clamps are used in processing of dc-to-ac converter top cap can avoid the elasticity knock pin to be driven and produce the displacement to a very big degree when fixed elasticity knock pin, guarantees the accuracy of location.
In order to solve the technical problem, the utility model discloses a 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 bottom plate, 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 bottom plate 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 utility model discloses a theory of operation is: 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, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature therebetween. 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 the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention 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 present 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 bottom plate 1, a pressing plate 4b connected with the top end of a piston rod of the air cylinder 4a and a hinged plate 4c respectively hinged to the middle of the pressing plate 4b and the bottom 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 upwards push the pressing plate 4b 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 plate 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-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content 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 bottom plate (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 bottom plate (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 |
|---|---|---|---|
| CN202021744979.0U CN212735777U (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 |
|---|---|---|---|
| CN202021744979.0U CN212735777U (en) | 2020-08-20 | 2020-08-20 | Clamp for machining top cover of inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212735777U true CN212735777U (en) | 2021-03-19 |
Family
ID=74989233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021744979.0U Withdrawn - After Issue CN212735777U (en) | 2020-08-20 | 2020-08-20 | Clamp for machining top cover of inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212735777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791164A (en) * | 2020-08-20 | 2020-10-20 | 湖南省嘉力机械有限公司 | Clamp for machining top cover of inverter |
| CN116252166A (en) * | 2023-02-20 | 2023-06-13 | 江苏广大鑫盛精密智造有限公司 | Tool clamp for disc parts and application method |
-
2020
- 2020-08-20 CN CN202021744979.0U patent/CN212735777U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791164A (en) * | 2020-08-20 | 2020-10-20 | 湖南省嘉力机械有限公司 | Clamp for machining top cover of inverter |
| CN111791164B (en) * | 2020-08-20 | 2024-04-26 | 湖南省嘉力机械有限公司 | Clamp for machining top cover of inverter |
| CN116252166A (en) * | 2023-02-20 | 2023-06-13 | 江苏广大鑫盛精密智造有限公司 | Tool clamp for disc parts and application method |
| CN116252166B (en) * | 2023-02-20 | 2024-01-16 | 江苏广大鑫盛精密智造有限公司 | Tool clamp for disc parts and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210319 Effective date of abandoning: 20240426 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210319 Effective date of abandoning: 20240426 |