CN213258205U - Special clamp for finish machining of small pressing plate parts - Google Patents
Special clamp for finish machining of small pressing plate parts Download PDFInfo
- Publication number
- CN213258205U CN213258205U CN202021695299.4U CN202021695299U CN213258205U CN 213258205 U CN213258205 U CN 213258205U CN 202021695299 U CN202021695299 U CN 202021695299U CN 213258205 U CN213258205 U CN 213258205U
- Authority
- CN
- China
- Prior art keywords
- reference surface
- front side
- positioning pin
- small
- screw holes
- 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.)
- Active
Links
Images
Abstract
The utility model provides a special fixture for finish machining small pressure plate parts, which comprises a cuboid-shaped positioning device, wherein the bottom and one side surface of the positioning device form a bottom reference surface and a front side reference surface, and the top of the positioning device is provided with a machining abdicating inclined surface; the front side part reference surface is provided with a plurality of screw holes, a plurality of horizontal measuring holes arranged on the lower sides of the screw holes, a first positioning pin, a second positioning pin, a third positioning pin and a vertical measuring hole, wherein the first positioning pin, the second positioning pin, the third positioning pin and the vertical measuring hole are used for positioning the side edge of the small pressing plate part; the second positioning pin and the third positioning pin are horizontally arranged in the transverse direction and are parallel to the bottom reference surface; the plurality of screw holes transversely penetrate through the positioning device, and the other ends of the plurality of screw holes form a square groove structure on the processing abdicating inclined plane; and the plurality of screw holes positioned at two sides are respectively connected with a first clamping block and a second clamping block which are used for fixing the small pressing plate part on the reference surface of the front side part through sunk screws. The fixture can improve the processing quality and the processing efficiency of high-precision thin plates.
Description
Technical Field
The utility model relates to an anchor clamps field, specific theory has related to a little clamp plate part special fixture of finish machining.
Background
The tobacco machinery manufacturing industry provides first-class technical equipment and equipment guarantee for the tobacco industry, leads scientific and technological innovation in the field of Chinese tobacco machinery, and actively promotes the continuous promotion of the manufacturing technology and the service level of Chinese tobacco equipment. In the tobacco machinery manufacturing, high-precision thin-plate workpieces are very important parts in filter stick forming products and are important components of core components of the products. The processing of the workpieces is an indispensable processing content. Wherein the small platen part is a core fabrication in the product. Generally, the clamping and positioning modes of the machining of the small pressure plate part generally include the following two modes:
adopting an assembled combined clamp: and positioning and clamping the small pressure plate part on the combined clamp, lapping the pressure plate, fixing the pressure plate on a workbench of a machine tool, and carrying out machining. Because the small pressure plate part is special in shape, the upper plane and the lower plane are not parallel, the upper surface of the small pressure plate part is in a slope shape, the slope surface needs finish machining, if a combined clamp is used for clamping, the pressure plate needs to be lapped on the upper plane and the lower plane, the pressure plate can interfere with the upper surface and the lower surface of the machined small pressure plate part, and finish machining cannot be carried out.
Clamping by adopting a vice: the small pressing plate part is fixed on a machine tool workbench for machining in a mode of directly clamping two planes of a workpiece by using a machine tool accessory vice. Because the small pressure plate part is thin, and the lower side edge is provided with an arc groove, the opening of the arc groove is more sharp and is in a blade shape, and if the small pressure plate part is clamped by a vice, the part is directly deformed.
In order to solve the above problems, people are always seeking an ideal technical solution.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a special fixture for finish machining of small pressing plate parts comprises a cuboid-shaped positioning device, wherein a bottom reference surface is formed on the side face of the bottom of the positioning device, a front side reference surface is formed on one side face of the positioning device, and a machining abdicating inclined plane extending downwards from the front side reference surface in an inclined mode is formed in the top of the positioning device;
two step planes and a plurality of semicircular grooves are respectively formed on the front side part reference surface and the edge clamped by the processing abdicating inclined surface;
the front side reference surface is provided with a plurality of screw holes and a plurality of horizontal measuring holes arranged on the lower side of the screw holes, and the screw holes and the horizontal measuring holes are parallel to the bottom reference surface and are horizontally arranged with the bottom reference surface;
the front side part reference surfaces positioned at two sides of the horizontal measuring holes are also provided with a second positioning pin and a third positioning pin for positioning the bottom edge of the small pressure plate part, and a first positioning pin and a vertical measuring hole for positioning the side edge of the small pressure plate part; the second positioning pin and the third positioning pin are horizontally arranged in the transverse direction and are parallel to the bottom reference surface;
a plurality of screw holes transversely penetrate through the positioning device, and the other ends of the screw holes form a square groove structure on the processing abdicating inclined plane; and the plurality of screw holes positioned at two sides are respectively connected with a first clamping block and a second clamping block which are used for fixing the small pressing plate part on the reference surface of the front side part through sunk screws.
Based on the above, the included angle between the processing abdicating inclined plane and the front side part reference plane is 45 degrees.
Based on the above, the plurality of horizontal measuring holes are distributed at equal intervals.
Based on the above, the plurality of semicircular grooves are distributed at equal intervals.
Based on the above, two step planes are respectively arranged on the front side reference surface and two sides of the edge clamped by the processing abdicating inclined surface.
Based on the above, the lower edge of the first clamping block coincides with the lower edge of the small pressure plate part positioned on the positioning device.
Based on the above, the distance between the first positioning pin and the top of the front side reference surface and the distance between the second positioning pin and the top of the front side reference surface are smaller than the width of the small pressing plate part, so that the top of the small pressing plate part forms a surface to be processed.
Based on the above, screw holes are formed in the first clamping block and the second clamping block.
Based on the above, the tops of the horizontal measuring holes are higher than the lower edge of the small pressure plate part, so that the lower edge of the small pressure plate part can be measured through the horizontal measuring holes.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model provides a finish machining little clamp plate part special fixture clamping location is accurate, reliable, can ensure to obtain the machining precision requirement of the work piece that needs after the alignment is rectified to the rethread infrared probe. Meanwhile, the positioning device and the clamping block are used together, and the screws and the nuts are used for locking, so that the position of the workpiece is accurate, firm and safe in the machining process. The screw and the nut are standard parts, so that the cost is low and the replacement is convenient; the service life of the special clamp is prolonged. Therefore, the small pressing plate part processed by the special clamp can obtain the required precision requirement, the processing quality of high-precision thin plates is greatly stabilized, and the processing efficiency of the high-precision thin plates is greatly improved.
Drawings
Fig. 1 is the utility model provides a finish machining little clamp plate part special fixture assembles spatial structure sketch map.
Fig. 2 is the utility model provides a side structure sketch map before little clamp plate part special fixture assembly of finish machining.
Fig. 3 is the utility model provides a side structure sketch map after little clamp plate part special fixture assembly of finish machining.
Fig. 4, fig. 5 and fig. 6 are schematic structural diagrams of the special fixture for fine machining small platen parts provided by the present invention.
Fig. 7 is a sectional view taken along a-a in fig. 6.
Fig. 8 and fig. 9 are schematic views of the assembly measurement state of the special fixture for the finish machining small-sized platen part provided by the present invention.
In the figure: 1. a positioning device; 2. a first positioning pin; 3. a second positioning pin; 4. a first clamping block; 5. countersunk head screws; 6. a second clamping block; 7. a third positioning pin; 8. a horizontal measuring hole; 9. a vertical measuring hole; 10. a small platen part; 11. a square groove; 12. a semicircular groove; 13. a step plane; 14. a bottom datum plane; 15. processing an abdication inclined plane; 16. screw holes; 17. a front side reference plane; 18. an infrared probe; 19. a vise.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
Example 1
The embodiment provides a special fixture for a small-sized finished press plate part, which comprises a positioning device 1 in a cuboid shape, and a bottom reference surface 14 is formed on the bottom side surface of the positioning device 1, as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9. A front side part reference surface 17 is formed on one side surface of the positioning device 1, and a processing yielding inclined surface 15 extending downwards from the front side part reference surface 17 is formed at the top of the positioning device 1.
Two step planes 13 and three semicircular grooves 12 are respectively arranged on the edge clamped by the front side reference surface 17 and the processing abdicating inclined surface 15.
A plurality of screw holes 16 and a plurality of horizontal measuring holes 8 arranged on the lower side of the screw holes 16 are formed in the front side reference surface 17, and the screw holes 16 and the horizontal measuring holes 8 are all parallel to the bottom reference surface 14 and are horizontally arranged. The number of the screw holes 16 is determined by the fitting holes of the small platen member itself.
Specifically, in the present embodiment, the front side reference surface 17 located on both sides of the plurality of horizontal measurement holes 8 is further provided with a second positioning pin 3 and a third positioning pin 7 for positioning the bottom edge of the small platen part, and a first positioning pin 2 and a vertical measurement hole 9 for positioning the side edge of the small platen part. And the second positioning pin 3 and the third positioning pin 7 are horizontally arranged in the transverse direction and are parallel to the bottom reference surface 14.
A plurality of screw holes 16 transversely run through positioner 1 sets up and the other end of a plurality of screw holes 16 forms square groove 11 structure on processing abdicating inclined plane 15. The screw holes 16 on both sides are also respectively connected with a first clamping block 4 and a second clamping block 6 which are used for fixing the small pressure plate part on a front side reference surface 17 through countersunk head screws 5.
Specifically, in this embodiment, an included angle between the processing abdicating inclined plane 15 and the front side reference plane 17 is 45 degrees.
The plurality of horizontal measuring holes are distributed at equal intervals. The plurality of semicircular grooves are distributed at equal intervals. The two step planes are respectively arranged on the front side reference surface and two sides of the edge clamped by the processing abdicating inclined surface.
The lower edge of the first clamping block is coincided with the lower edge of the small pressure plate part positioned on the positioning device.
The distance between the first positioning pin and the top of the front side part reference surface, the distance between the second positioning pin and the top of the front side part reference surface are smaller than the width of the small pressing plate part, so that a surface to be processed is formed at the top of the small pressing plate part.
Screw holes are formed in the first clamping block and the second clamping block. The tops of the horizontal measuring holes are higher than the lower edge of the small pressure plate part, so that the lower edge of the small pressure plate part can be measured through the horizontal measuring holes. Specifically, in the present embodiment, the distance between the bottom surfaces of the small pressure plate parts exceeds the upper edges of the plurality of horizontal measuring holes by 0.5 mm.
In this embodiment, the specific structure of the small platen part 10 is as shown in fig. 1, and a positioning structure is formed by a first positioning pin, a second positioning pin and a third positioning pin, so that the workpiece is tightly abutted by three cylindrical pins by using the design principle of three-pin positioning, and the workpiece is corrected and straightened by using an infrared probe, thereby ensuring the positioning accuracy of the small platen part.
Meanwhile, in the actual operation process, the distance between the bottom surfaces of the small pressure plate parts exceeds the upper edges of the plurality of horizontal measuring holes by 0.5mm, and the purpose is to straighten and correct the clamped workpiece by using an infrared probe before processing and after clamping and positioning so as to detect whether the clamping of the workpiece is completely correct or not; and secondly, the infrared probe is used for measuring the workpiece in the machining process of the workpiece so as to prevent the workpiece machining precision and machining quality from being influenced by dimension errors of the part in the machining process.
Furthermore, a plurality of semicircular grooves are designed at the top of the front side reference surface, so that the workpiece can be straightened and corrected by using the infrared probe; and secondly, the processing quality of the workpiece is detected on a machine tool after the flue groove on the small pressing plate part is processed.
In the specific processing process, firstly, clamping the small pressure plate part on the special clamp, and clamping the special clamp by using a vice 19 which is an accessory of a machine tool, so as to fix the special clamp on a workbench of the machine tool; the infrared probe 18 is used to correct and straighten the part, so as to ensure that the part is located on the machine tool accurately, firmly and stably, and the required machining precision and machining quality are obtained.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (9)
1. The utility model provides a little clamp plate part special fixture of finish machining which characterized in that: the positioning device comprises a cuboid positioning device, wherein a bottom reference surface is formed on the side surface of the bottom of the positioning device, a front side reference surface is formed on one side surface of the positioning device, and a processing abdicating inclined plane extending downwards from the front side reference surface in an inclined manner is arranged at the top of the positioning device;
two step planes and a plurality of semicircular grooves are respectively formed on the front side part reference surface and the edge clamped by the processing abdicating inclined surface;
the front side reference surface is provided with a plurality of screw holes and a plurality of horizontal measuring holes arranged on the lower side of the screw holes, and the screw holes and the horizontal measuring holes are parallel to the bottom reference surface and are horizontally arranged;
the front side part reference surfaces positioned at two sides of the horizontal measuring holes are also provided with a second positioning pin and a third positioning pin for positioning the bottom edge of the small pressure plate part, and a first positioning pin and a vertical measuring hole for positioning the side edge of the small pressure plate part; the second positioning pin and the third positioning pin are horizontally arranged in the transverse direction and are parallel to the bottom reference surface;
a plurality of screw holes transversely penetrate through the positioning device, and the other ends of the screw holes form a square groove structure on the processing abdicating inclined plane; and the plurality of screw holes positioned at two sides are respectively connected with a first clamping block and a second clamping block which are used for fixing the small pressing plate part on the reference surface of the front side part through sunk screws.
2. The special fixture for small finished press plate parts as claimed in claim 1, wherein: the included angle between the processing abdication inclined plane and the front side part reference plane is 45 degrees.
3. The special fixture for small finished press plate parts as claimed in claim 2, wherein: the plurality of horizontal measuring holes are distributed at equal intervals.
4. The special fixture for small finished press plate parts as claimed in claim 3, wherein: the plurality of semicircular grooves are distributed at equal intervals.
5. The special fixture for small finished press plate parts as claimed in claim 4, wherein: the two step planes are respectively arranged on the front side reference surface and two sides of the edge clamped by the processing abdicating inclined surface.
6. The special fixture for small finished press plate parts as claimed in claim 5, wherein: the lower edge of the first clamping block is coincided with the lower edge of the small pressure plate part positioned on the positioning device.
7. The special fixture for small finished press plate parts as claimed in claim 6, wherein: the distance between the first positioning pin and the top of the front side part reference surface, the distance between the second positioning pin and the top of the front side part reference surface are smaller than the width of the small pressing plate part, so that a surface to be processed is formed at the top of the small pressing plate part.
8. The special fixture for small finished press plate parts as claimed in claim 7, wherein: screw holes are formed in the first clamping block and the second clamping block.
9. The special fixture for small finished press plate parts as claimed in claim 8, wherein: the tops of the horizontal measuring holes are higher than the lower edge of the small pressure plate part, so that the lower edge of the small pressure plate part can be measured through the horizontal measuring holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021695299.4U CN213258205U (en) | 2020-08-14 | 2020-08-14 | Special clamp for finish machining of small pressing plate parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021695299.4U CN213258205U (en) | 2020-08-14 | 2020-08-14 | Special clamp for finish machining of small pressing plate parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213258205U true CN213258205U (en) | 2021-05-25 |
Family
ID=75973222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021695299.4U Active CN213258205U (en) | 2020-08-14 | 2020-08-14 | Special clamp for finish machining of small pressing plate parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213258205U (en) |
-
2020
- 2020-08-14 CN CN202021695299.4U patent/CN213258205U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110774027B (en) | Boring clamp and operation method thereof | |
| CN110936108B (en) | Machining method for improving assembly precision of thin-wall annular casing type parts | |
| CN213258205U (en) | Special clamp for finish machining of small pressing plate parts | |
| CN212705560U (en) | Vertical machining center milling fixture for machining special-shaped pieces | |
| CN213470935U (en) | Blade optical detection positioning fixture | |
| CN210603072U (en) | Quick measuring device for residual burrs of forged piece | |
| CN105032987B (en) | A kind of detection instrument of punching parts size | |
| CN204353833U (en) | The quick-clamping positioning fixture of position degree test | |
| CN108971999B (en) | Eccentric inclined plane machining device and method for sliding ring | |
| CN109822366B (en) | Quick positioning mechanism for clamping workpiece by machine tool and application thereof | |
| CN110614389B (en) | Boring processing method for crosshead bearing cover of large-scale low-speed marine diesel engine | |
| CN201609833U (en) | Tool used for processing and inspecting steam turbine blade root go-gauge | |
| CN220462959U (en) | Milling plane machining positioning tool for upper tube seat supporting plate spring thinning | |
| CN211540361U (en) | Tapered wedge positioning device | |
| CN218363429U (en) | A kind of tool | |
| CN214792946U (en) | Detection and adjustment device for ensuring gasket processing parallelism | |
| CN113334116B (en) | Double-inclined-surface workpiece and machining method of clamp body thereof | |
| CN218822105U (en) | Auxiliary detection device for workpiece quality inspection | |
| CN217371923U (en) | Clamp for accurate grinding thread measuring head | |
| CN215847720U (en) | Auxiliary positioning device suitable for polygonal workpiece | |
| CN212420450U (en) | Clamp for finish milling of inner side surface of tool rest | |
| CN214080303U (en) | Portable workpiece positioning clamp | |
| CN113579852B (en) | Auxiliary measuring device for automatic processing of lugs and using method thereof | |
| CN218874557U (en) | Graphite plate machining clamp | |
| CN210878669U (en) | Special mould for boring crosshead bearing cover of large-scale low-speed marine diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |