CN113118804A - Positioning tool for machining of top tooth workpiece of sewing machine - Google Patents
Positioning tool for machining of top tooth workpiece of sewing machine Download PDFInfo
- Publication number
- CN113118804A CN113118804A CN201911390752.2A CN201911390752A CN113118804A CN 113118804 A CN113118804 A CN 113118804A CN 201911390752 A CN201911390752 A CN 201911390752A CN 113118804 A CN113118804 A CN 113118804A
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- China
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- fixed block
- positioning unit
- workpiece
- pressing
- sewing machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
A positioning tool for machining a top tooth workpiece of a sewing machine comprises a bottom plate and a fixed block, wherein the fixed block is fixedly installed on the top surface of the bottom plate, and the workpiece is positioned and clamped on the top surface of the fixed block; the inside lift sliding connection of fixed block has the pressfitting positioning unit and the jacking positioning unit that upwards stretches out the fixed block top surface, pierces through and swivelling joint has the eccentric shaft that provides the power of pushing down for pressfitting positioning unit on this fixed block lateral wall, and pierces through and threaded connection has the locking bolt that compresses tightly jacking positioning unit on the lateral wall of fixed block. The positioning tool is matched with the pressing positioning unit and the jacking positioning unit to position and clamp the workpiece on the top surface of the fixed block, so that the function of the milling positioning tool for the top teeth of the sewing machine is realized, and the positioning tool is suitable for large-batch milling positioning clamping of the top teeth of the sewing machine.
Description
Technical Field
The invention relates to the technical field of mechanical tools, in particular to a positioning tool for machining a top tooth workpiece of a sewing machine.
Background
The sewing machine top tooth is one of a plurality of complex structure workpieces of sewing machine, and the machined surface of this work piece is numerous, including the spatial structure cambered surface, and the locating surface is more when milling face processing, and the size is difficult to hold, and sewing machine top tooth structure is slim and long type, and its structural strength is not high, can't press from both sides through the bench vice among the prior art and adorn the location, and this just gives the milling face of sewing machine top tooth and presss from both sides the dress and bring not little degree of difficulty.
Through published patent search, no relevant comparison documents are found.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a positioning tool for machining a top tooth workpiece of a sewing machine.
A positioning tool for machining a top tooth workpiece of a sewing machine comprises a bottom plate and a fixed block, wherein the fixed block is fixedly installed on the top surface of the bottom plate, and the workpiece is positioned and clamped on the top surface of the fixed block; the inside lift sliding connection of fixed block has the pressfitting positioning unit and the jacking positioning unit that upwards stretches out the fixed block top surface, pierces through and swivelling joint has the eccentric shaft that provides the power of pushing down for pressfitting positioning unit on this fixed block lateral wall, and pierces through and threaded connection has the locking bolt that compresses tightly jacking positioning unit on the lateral wall of fixed block.
The pressing and positioning unit comprises a pressing plate, the pressing plate is installed inside the fixed block in a lifting and sliding mode, a pressing head which extends out of the top face of the fixed block upwards and is pressed on the workpiece is arranged at the top of the pressing plate, and an arc-shaped hole which is communicated transversely is formed in the bottom of the pressing plate; the middle part of the eccentric shaft horizontally penetrates through the arc-shaped hole, an eccentric wheel in sliding fit with the inner wall of the arc-shaped hole is integrally manufactured in the middle part of the eccentric shaft, two ends of the eccentric shaft are respectively in rotating fit connection with the side wall of the fixing block, and a handheld handle is fixedly mounted at one end of the eccentric shaft.
The lifting positioning unit comprises a top plate, the top plate is arranged inside the fixed block in a lifting sliding mode, a spring long hole which is horizontally communicated and is arranged in the vertical direction is formed in the middle of the top plate, and a locking bolt is supported on the side wall of the top plate in a jacking mode; the spring slot is internally and elastically connected with a jacking spring, the top of the jacking spring is supported on the top surface of the spring slot in a buffering manner, and the bottom of the jacking spring is connected with an adjusting unit.
The joint unit comprises an adjusting long hole and an adjusting bolt, wherein the adjusting long hole is formed in the side wall of the fixed block in the vertical direction, and the adjusting long hole penetrates through the adjusting bolt and is in threaded connection with the adjusting bolt; the threaded end of the adjusting bolt penetrates through the adjusting long hole and extends into the spring long hole, and the upper part of the circumferential outer wall of the adjusting bolt supports and props against the spring in a buffering mode.
The invention has the advantages and technical effects that:
the invention relates to a positioning tool for processing a top tooth workpiece of a sewing machine, which provides basic support for the workpiece through a bottom plate and a fixed block, presses and locks the workpiece by a pressing and positioning unit, elastically supports the workpiece by a lifting and positioning unit, and fixes the workpiece on the top surface of the fixed block by matching the pressing and positioning unit and the lifting and positioning unit, wherein:
1. a pressing positioning unit: the eccentric shaft is driven to rotate by the handheld handle, the arc-shaped hole is driven to move downwards by the eccentric wheel in the middle of the eccentric shaft, the pressing plate and the pressing head are further driven to move downwards, and the workpiece is pressed and locked by the pressing head;
2. jacking positioning unit: the top plate is used for supporting the workpiece, the jacking spring in the long hole of the plate spring of the top plate is used for providing upward force for the top plate, the pre-tightening force of the jacking spring is controlled by the adjusting long hole and the adjusting bolt, and finally the top plate is locked by the locking bolt in a positioning mode, so that the workpiece is prevented from vibrating in the face milling process.
The positioning tool for machining the top tooth workpiece of the sewing machine effectively reduces the tool positioning difficulty of large-batch top tooth face milling of the sewing machine, avoids the problem of deformation of the top tooth of the sewing machine caused by opposite clamping, is convenient to position and disassemble, greatly improves the machining efficiency and the machining precision, and is a positioning tool for machining the top tooth workpiece of the sewing machine with higher creativity.
Drawings
FIG. 1 is a perspective view (workpiece positioning state) of the present invention;
FIG. 2 is a top view of the present invention (workpiece positioned state);
FIG. 3 is a cross-sectional view of section A-A of FIG. 2;
FIG. 4 is a partial cross-sectional view of the jacking-positioning unit of the present invention;
FIG. 5 is a schematic view of the construction of the platen of the present invention;
FIG. 6 is a schematic structural view of the eccentric shaft of the present invention;
in the figure: 1-a handle; 2-a pressure head; 3-a workpiece; 4-locking the bolt; 5, fixing blocks; 6-a bottom plate; 7-an eccentric shaft; 8-pressing a plate; 9-arc-shaped holes; 10-a top plate; 11-adjusting the long hole; 12-spring slot hole; 13-adjusting the bolt; 14-a jacking spring; 15-eccentric wheel.
Detailed Description
For a further understanding of the contents, features and effects of the present invention, reference will now be made to the following examples, which are to be considered in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.
A positioning tool for machining a top tooth workpiece of a sewing machine comprises a bottom plate 6 and a fixed block 5, wherein the fixed block is fixedly installed on the top surface of the bottom plate, and a workpiece 3 is positioned and clamped on the top surface of the fixed block; the inside lift sliding connection of fixed block has the pressfitting positioning unit and the jacking positioning unit that upwards stretches out the fixed block top surface, pierces through and swivelling joint has the eccentric shaft 7 that provides the power of pushing down for pressfitting positioning unit on this fixed block lateral wall, and pierces through and threaded connection has the locking bolt 4 that compresses tightly jacking positioning unit on the lateral wall of fixed block.
The pressing and positioning unit comprises a pressing plate 8 which is installed inside the fixed block in a lifting and sliding manner, the top of the pressing plate is provided with a pressing head 2 which extends out of the top surface of the fixed block upwards and is pressed on the workpiece, and the bottom of the pressing plate is provided with an arc-shaped hole 9 which is transversely penetrated; the middle part of the eccentric shaft horizontally penetrates through the arc-shaped hole, an eccentric wheel 15 in sliding fit with the inner wall of the arc-shaped hole is integrally manufactured in the middle part of the eccentric shaft, two ends of the eccentric shaft are respectively in rotating fit connection with the side wall of the fixing block, and a handheld handle 1 is fixedly arranged at one end of the eccentric shaft.
Moreover, the lifting and positioning unit comprises a top plate 10 which is arranged inside the fixed block in a lifting and sliding manner, a spring long hole 12 which is horizontally communicated and is arranged along the vertical direction is formed in the middle of the top plate, and a locking bolt is supported on the side wall of the top plate in a jacking manner; the spring slot is internally and elastically connected with a jacking spring 14, the top of the jacking spring is supported on the top surface of the spring slot in a buffering way, and the bottom of the jacking spring is connected with an adjusting unit.
Moreover, the joint unit comprises an adjusting long hole 11 and an adjusting bolt 13, wherein the adjusting long hole is formed in the side wall of the fixed block along the vertical direction, and the adjusting long hole penetrates through the adjusting bolt and is in threaded connection with the adjusting bolt; the threaded end of the adjusting bolt penetrates through the adjusting long hole and extends into the spring long hole, and the upper part of the circumferential outer wall of the adjusting bolt supports and props against the spring in a buffering mode.
To more clearly illustrate the embodiments of the present invention, an example is provided below:
according to the positioning tool for machining the top tooth workpiece of the sewing machine, when the workpiece is locked, the workpiece needs to be placed on the top surface of the fixing block, the top surface of the top plate is higher than the top surface of the fixing block, the workpiece needs to be manually pressed downwards, the height of the top plate is ensured to be consistent with the height of the top surface of the fixing block, then the hand-held handle is manually pressed downwards, the pressing plate moves downwards, the pressing head at the top of the pressing plate is tightly pressed on the top surface of the workpiece, and finally the puller bolt is screwed, so that the phenomenon that the workpiece vibrates as the top plate moves upwards in.
It should be noted that the pretightening force of the jacking spring should not be too large, and only the fixed height of the adjusting bolt in the adjusting long hole needs to be controlled when the pretightening force of the jacking spring is adjusted.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides a sewing machine top tooth processing is with location frock which characterized in that: the fixture comprises a bottom plate and a fixed block, wherein the fixed block is fixedly arranged on the top surface of the bottom plate, and a workpiece is positioned and clamped on the top surface of the fixed block; the inner part of the fixed block is connected with a pressing positioning unit and a jacking positioning unit which extend upwards to the top surface of the fixed block in a lifting and sliding manner, the side wall of the fixed block is penetrated and rotatably connected with an eccentric shaft which provides pressing power for the pressing positioning unit, and the side wall of the fixed block is penetrated and connected with a locking bolt of the pressing jacking positioning unit in a threaded manner.
2. The positioning tool for machining the top tooth workpiece of the sewing machine according to claim 1, characterized in that: the pressing and positioning unit comprises a pressing plate, the pressing plate is installed inside the fixed block in a lifting and sliding mode, a pressing head which extends out of the top face of the fixed block upwards and is pressed on the workpiece is arranged at the top of the pressing plate, and an arc-shaped hole which is transversely communicated is formed in the bottom of the pressing plate; the middle part of the eccentric shaft horizontally penetrates through the arc-shaped hole, an eccentric wheel in sliding fit with the inner wall of the arc-shaped hole is integrally manufactured in the middle part of the eccentric shaft, two ends of the eccentric shaft are respectively in rotating fit connection with the side wall of the fixing block, and a handheld handle is fixedly mounted at one end of the eccentric shaft.
3. The positioning tool for machining the top tooth workpiece of the sewing machine according to claim 1, characterized in that: the lifting positioning unit comprises a top plate, the top plate is arranged in the fixed block in a lifting sliding mode, a spring long hole which is horizontally communicated and is arranged in the vertical direction is formed in the middle of the top plate, and a locking bolt is supported on the side wall of the top plate in a jacking mode; the top of the jacking spring is supported on the top surface of the spring long hole in a buffering manner, and the bottom of the jacking spring is connected with an adjusting unit.
4. The positioning tool for machining the top tooth workpiece of the sewing machine according to claim 3, characterized in that: the adjusting unit comprises an adjusting long hole and an adjusting bolt, wherein the adjusting long hole is formed in the side wall of the fixed block in the vertical direction, and the adjusting long hole penetrates through the adjusting bolt and is in threaded connection with the adjusting bolt; the threaded end of the adjusting bolt penetrates through the adjusting long hole and extends into the spring long hole, and the upper part of the circumferential outer wall of the adjusting bolt supports and props against the spring in a buffering mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390752.2A CN113118804A (en) | 2019-12-30 | 2019-12-30 | Positioning tool for machining of top tooth workpiece of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390752.2A CN113118804A (en) | 2019-12-30 | 2019-12-30 | Positioning tool for machining of top tooth workpiece of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113118804A true CN113118804A (en) | 2021-07-16 |
Family
ID=76767465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390752.2A Pending CN113118804A (en) | 2019-12-30 | 2019-12-30 | Positioning tool for machining of top tooth workpiece of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113118804A (en) |
-
2019
- 2019-12-30 CN CN201911390752.2A patent/CN113118804A/en active Pending
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