CN202343652U - Broaching tool straightening device - Google Patents
Broaching tool straightening device Download PDFInfo
- Publication number
- CN202343652U CN202343652U CN2011205179344U CN201120517934U CN202343652U CN 202343652 U CN202343652 U CN 202343652U CN 2011205179344 U CN2011205179344 U CN 2011205179344U CN 201120517934 U CN201120517934 U CN 201120517934U CN 202343652 U CN202343652 U CN 202343652U
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- China
- Prior art keywords
- slide rail
- broaching tool
- sliding seat
- slide
- workbench
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- Expired - Fee Related
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a broaching tool straightening device, which comprises a workbench, a slide rail arranged on the rear side of the workbench, two sliding seats in sliding fit with the slide rail, and two center sliding seats which are arranged corresponding to the sliding seats one by one and respectively synchronously move with the sliding seats in the direction of the slide rail, wherein the two sliding seats are sleeved on a connecting rod arranged in parallel to the slide rail; one end of each center sliding seat is in rotating fit with the connecting rod, the other ends of the center sliding seats are supported on the sliding seats through spring supporting devices, and the front ends of the center sliding seats facing to the workbench are provided with center devices for clamping a broaching tool; at least two V-shaped irons are arranged on the workbench; and locking devices for locking the sliding seats and the connecting rod are arranged on the sliding seats. Through the broaching tool straightening device, the point required to be straightened on the broaching tool can be conveniently found and directly straightened on the broaching tool straightening device; and only one-time clamping is required in the whole straightening process, so that the burden of workers is lightened, and the working efficiency is improved.
Description
Technical field
The utility model relates to a kind of coalignment, and concrete is a kind of broaching tool coalignment.
Background technology
Broaching tool generally is used to process endoporus, and is therefore flexible because of general thin length of broaching tool shape, no matter be in machining, still is to cause easily all that in heat treatment the bending that flexural deformation, particularly heat treatment causes is bigger.The straightener that uses after the existing broaching tool heat treatment needs pure artificial type operation fully, and efficient is low, and workman's labor load is big.Existing broaching tool straightener at first will find the point that needs alignment in use, and alignment below pressing hammer is lifted in manual work again, and to need the point of alignment be uncertain, needs the reciprocal product of moving, and the labour of waste is just more.Along with the enlarged diameter of broaching tool, the weight weightening finish, working strength of workers is increasing.How in the broaching tool alignment process, to realize mechanization, and use suitable alignment frock extremely urgent.
Given this; The utility model is intended to propose a kind of broaching tool coalignment, broaching tool is installed in this broaching tool coalignment after, not only can find the point that needs alignment easily; And directly alignment on this broaching tool coalignment; Only need disposable clamping in the whole alignment process, not only alleviated workman's burden, and improved operating efficiency.
Summary of the invention
The technical problem that the utility model will solve is to propose a kind of broaching tool coalignment; This broaching tool coalignment can not only find the point that needs alignment on the broaching tool easily; And directly alignment on this broaching tool coalignment; Only need disposable clamping in the whole alignment process, not only alleviated workman's burden, and improved operating efficiency.
Realize above-mentioned technical purpose; The broaching tool coalignment of the utility model; Two sliding seats that comprise workbench, be arranged on the slide rail of said workbench rear side, are slidingly matched with said slide rail and with the corresponding one by one setting of said sliding seat and respectively with said sliding seat along synchronization-moving two the top slides of slide rail direction; Said two sliding seats all are sleeved on the connecting rod that laterally arranges with said slide rail; Said top slide one end and said connecting rod are rotatably assorted, and the other end is supported on the said sliding seat through spring supporting device, and said top slide is provided with the Finial device that is used for the clamping broaching tool towards the front end of said workbench; Said workbench is provided with at least two V shape irons, and said sliding seat is provided with the locking device that is used for sliding seat and the locking of said connecting rod.
Further; Also be provided with slide rail regulating device between said slide rail and the said workbench; Said slide rail regulating device comprises at least two adjusting slide rails and is fixedly connected with said workbench rear side and L-shaped back-up block; Said adjusting slide rail is the L type; And be respectively equipped with vertically the waist shape button head screw hole I that extends on the two side of said adjusting slide rail and along waist shape button head screw hole II perpendicular to said slide rail direction, threaded fastener extend through this waist shape button head screw hole I and waist shape button head screw hole II respectively be arranged on said slide rail on screwed hole and the screwed hole that is arranged on the said back-up block match;
Further; Said spring supporting device comprises spring lever and is sleeved on the spring on this spring lever; The two ends of said spring lever are set in the through hole that is arranged on said sliding seat and the top slide, and said spring is between said sliding seat and top slide;
Further, said locking device comprises lock handle and is threaded with this lock handle and is arranged on the locking hole on the said sliding seat, said locking hole be arranged on said sliding seat on and the connecting hole that is used for the said connecting rod of suit communicate;
Further, said sliding seat is provided with the chute that matches with said slide rail, is equipped with single-row radial ball bearing between the two side of said chute and chute top and the said slide rail;
Further, said top slide front end is provided with the installing hole that is used to install Finial device, and said Finial device comprises the center sleeve that is sleeved in the said installing hole and be installed in top in the center sleeve that said top axis is parallel with said slide rail;
Further; Said top slide front end is provided with the installing hole that is used to install Finial device; Said Finial device comprises the center sleeve that is sleeved in the said installing hole, be installed in top in the center sleeve and be used to promote said top and center sleeve along installing hole thrust unit in axial sliding, and said top axis is parallel with said slide rail;
Further; Said thrust unit comprises the adjusting nut that is fixedly mounted in the said center sleeve, the screw rod that cooperates with this adjusting nut; And handwheel that circumferentially is fixedly connected with said screw rod and the handle that is arranged on the handwheel edge, be provided with rotary axle box between said screw rod and the said installing hole and be arranged on said screw rod and said rotary axle box between bearing;
Further, said center sleeve and saidly be provided with bellmouth and the tapered rod that cooperatively interacts between top, the diameter of said bellmouth and the tapered rod all direction along top head to afterbody successively decreases;
Further, said workbench is provided with guide rail, and said V shape iron is provided with the slide block that matches with said guide rail.
The beneficial effect of the utility model is:
1, two sliding seats of the broaching tool coalignment of the utility model through slide rail being set and cooperating with slide rail; Single sliding seat all can slide on slide rail separately; And after being locked at two sliding seats on the connecting rod through locking device, can same moved further between two sliding seats, broaching tool by clamping on the Finial device of two top slides; And two top slides respectively with sliding seat along the same moved further of slide rail; Can drive broaching tool along slide rail direction move left and right, and broaching tool can overturn between Finial device also, can on broaching tool, find the point that needs alignment easily; Find after the point that needs alignment, it moved to press below the hammer, with broaching tool to pressing down; Because top slide one end and connecting rod are rotatably assorted, an end is through the spring supporting device support, under the downward pressure of weight; Top slide is that rotating shaft is rotated with the connecting rod, and broaching tool is pressed between two V shape irons, continues to pressing down; Broaching tool will occur bending and deformation, and finally reaches the purpose of alignment; Therefore; The broaching tool coalignment of the utility model can not only find the point that needs alignment on the broaching tool easily, and directly alignment on this broaching tool coalignment, only needs disposable clamping in the whole alignment process; Not only alleviate workman's burden, and improved operating efficiency;
2, through between slide rail and workbench, slide rail regulating device being set; All adopt threaded fastener to be connected between the adjusting slide rail of slide rail regulating device and back-up block and the slide rail; And be arranged on the screw hole I and the screw hole II that regulate on the slide rail and all be waist shape circle; Therefore can change the fixed position of regulating between slide rail and back-up block and the slide rail, and then regulate the position up and down of slide rail;
3,, when the clamping broaching tool, shake the handwheel of thrust unit through thrust unit is set on Finial device; Make top moving forward withstand broaching tool, when pulling down broaching tool, top moving backward separated with broaching tool; Therefore, through being set, thrust unit can be convenient to the clamping and the dismounting of broaching tool.
Description of drawings
Fig. 1 is the utility model broaching tool coalignment example structure sketch map;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is first kind of structural representation of Finial device;
Fig. 4 is second kind of structural representation of Finial device;
Stressed sketch map when Fig. 5 is the broaching tool alignment.
Description of reference numerals:
The 1-workbench; The 2-slide rail; The 3-sliding seat; The top slide of 4-; The 5-connecting rod; 6-V shape iron; The 7-through hole; The 8-through hole; The 9-spring lever; The 10-spring; The 11-chute; The 12-single-row radial ball bearing; The 13-back-up block; The 14-adjusting slider; 15-screw hole I; 16-screw hole II; The 17-lock handle; The 18-locking hole; The 19-connecting hole; The 20-installing hole; The 21-center sleeve; 22-is top; The 23-adjusting nut; The 24-screw rod; The 25-handwheel; The 26-handle; The 27-rotary axle box; The 28-bearing; The 29-bellmouth; The 30-tapered rod; The 31-guide rail.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model.
As shown in Figure 1, be the utility model broaching tool coalignment example structure sketch map; Fig. 2 is the A-A cutaway view of Fig. 1.The broaching tool coalignment of present embodiment; Two sliding seats 3 that comprise workbench 1, be arranged on the slide rail 2 of said workbench 1 rear side, are slidingly matched with said slide rail 2 and with the corresponding one by one setting of said sliding seat 3 and respectively with said sliding seat 3 along synchronization-moving two the top slides 4 of slide rail direction; Said two sliding seats 3 all are sleeved on the connecting rod 5 that laterally arranges with said slide rail 2; Said top slide 4 one ends and said connecting rod 5 are rotatably assorted; The other end is supported on the said sliding seat 3 through spring supporting device; Said top slide 4 is provided with the Finial device that is used for the clamping broaching tool towards the front end of said workbench 1, and said workbench 1 is provided with at least two V shape irons 6, and said sliding seat 3 is provided with the locking device that is used for locking between sliding seat 3 and the said connecting rod 5.
As shown in the figure, the sliding seat 3 of the broaching tool coalignment of present embodiment is the L type, and a side of sliding seat 3 is parallel with workbench 1; Connecting rod 5 is sleeved on the opposite side top of sliding seat 3; The front end of top slide 3 is provided with the through hole 7 that is used for the mounting spring bracing or strutting arrangement, is provided with through hole 8 accordingly with this through hole 7 on the sliding seat 3, and spring supporting device comprises the spring lever 9 that is sleeved in through hole 7 and the through hole 8; And spring 10 is sleeved on the spring lever 9 and between sliding seat 3 and top slide 4; Through spring supporting device is set, not only can supports top slide 4, and make that top slide 4 can be that rotating shaft is rotated with connecting rod 5 under external force.
Two sliding seats 3 of the broaching tool coalignment of present embodiment through slide rail 2 being set and cooperating with slide rail 2; Single sliding seat 3 all can slide on slide rail separately; And after being locked at two sliding seats 3 on the connecting rod 5 through locking device, can same moved further between two sliding seats 3, broaching tool by clamping on the Finial device of two top slides 4; And two top slides respectively with sliding seat 3 along slide rail 2 same moved further; Can drive broaching tool along slide rail 2 direction move left and right, and broaching tool can overturn between Finial device also, can on broaching tool, find the point that needs alignment easily; Find after the point that needs alignment, it moved to press below the hammer, with broaching tool to pressing down; Because top slide 4 one ends and connecting rod 5 are rotatably assorted, an end is through the spring supporting device support, under the downward pressure of weight; Top slide 4 is that rotating shaft is rotated with connecting rod 5, and broaching tool is pressed between two V shape irons 6, continues to pressing down; Broaching tool will occur bending and deformation, and finally reaches the purpose of alignment; Therefore; The broaching tool coalignment of present embodiment can not only find the point that needs alignment on the broaching tool easily, and directly alignment on this broaching tool coalignment, only needs disposable clamping in the whole alignment process; Not only alleviate workman's burden, and improved operating efficiency.
Preferably; Said sliding seat 3 is provided with the chute 11 that matches with said slide rail 2; Be equipped with single-row radial ball bearing 12 between the two side of said chute 11 and chute 11 tops and the said slide rail 2; And the two side of chute 11 and chute 11 tops are equipped with the core bar that is used for suit single-row radial ball bearing 12, through chute 11 being set on the sliding seat 3 and between chute 11 and slide rail 2, single-row radial ball bearing 12 being set, can make that sliding seat 3 resistance to sliding on slide rail 2 is littler.
Preferably; Also be provided with slide rail regulating device between said slide rail 2 and the said workbench 1; Said slide rail regulating device comprises and being fixedly connected with said workbench 1 rear side and L-shaped back-up block 13 and at least two adjusting slide rails 14 that are connected through threaded fastener with said slide rail 2; Connect through threaded fastener between said adjusting slide rail 14 and the said back-up block 13; Further, said adjusting slide rail 14 is the L type, and is respectively equipped with vertically the waist shape button head screw hole I 15 that extends on the two side of said adjusting slide rail 14 and along the waist shape button head screw hole II 16 perpendicular to said slide rail 2 directions; Said threaded fastener extends through this waist shape button head screw hole I 15 back and cooperates with screwed hole on being arranged on said slide rail 2; To regulate slide rail 14 and link together with slide rail 2, threaded fastener extends through waist shape button head screw hole II 16 backs and matches with screwed hole on being arranged on said back-up block 13, and adjusting slider 14 and back-up block 13 are linked together.Because screw hole I 15 and screw hole II 16 all are waist shape circle; Therefore can change respectively and regulate slide rail 14 and back-up block and regulate the fixed position between slide rail 14 and the slide rail 2; And then the position up and down of adjusting slide rail 2; Make the job requirement that to satisfy the alignment broaching tool that is positioned at of slide rail 2, promptly make the broaching tool behind the clamping be positioned at the top of V shape iron 6.
Further; Said locking device comprises lock handle 17 and is threaded with this lock handle 17 and is arranged on the locking hole 18 on the said sliding seat 3; Said locking hole 18 be arranged on said sliding seat 3 on and the connecting hole 19 that is used for the said connecting rod 5 of suit communicate; Through lock handle 17 is set, rotation lock handle 17, the time between lock handle 17 and the locking hole 18 to be connected length elongated; Lock handle 17 is withstood on the connecting rod 5, can prevent to take place between connecting rod 5 and the sliding seat 3 to slide relatively; Opposite, rotation lock handle 17 makes lock handle 17 shorten with the length that is connected between the locking hole 18, and can lock handle 17 and connecting rod 5 be unclamped, and makes and can slide relatively between sliding seat 3 and the connecting rod 5.
Further; Said top slide 4 front ends are provided with the installing hole 20 that is used to install Finial device; Said Finial device comprises the center sleeve 21 that is sleeved in the said installing hole 20 and is installed in top 22 in the center sleeve 21; Said top 22 axis are parallel with said slide rail 2, are provided with stop screw between top slide 4 and the center sleeve 21, and are as shown in Figure 4.Finial device can also adopt another kind of structure: said Finial device comprises the center sleeve 21 that is sleeved in the said installing hole 20, be installed in top 22 in the center sleeve 21 and be used to promote said top 22 and center sleeve 21 at the thrust unit that slides along installing hole 20 axial directions; Said top 22 axis are parallel with said slide rail 2; Be provided with stop screw between center sleeve 21 and the top slide 4; And center sleeve 21 be provided be used to limit thrust unit promote top 22 with the groove of center sleeve 21 movement travels, as shown in Figure 3.On two top slides 4, can adopt above-mentionedly, also can on two Finial devices 4, adopt the Finial device of two kinds of different structures respectively, all can satisfy the instructions for use of clamping broaching tool with a kind of Finial device.Be respectively equipped with two kinds of Finial devices on two top slides 4 of the broaching tool coalignment of present embodiment.
Preferably; Said thrust unit comprises the adjusting nut 23 that is fixedly mounted in the said center sleeve 21, the screw rod 24 that cooperates with this adjusting nut 23; And handwheels 25 that circumferentially are fixedly connected with said screw rod 24 and the handle 26 that is arranged on handwheel 25 edges; Be provided with rotary axle box 27 between said screw rod 24 and the said installing hole 20 and be arranged on the bearing 28 between said screw rod 24 and the said rotary axle box 27, make that handwheel 25 rotary resistances are littler.When the clamping broaching tool, shake the handwheel 25 of thrust unit, make top 22 to move forward and withstand broaching tool, when pulling down broaching tool, can make top 22 to move backward and separate with broaching tool, therefore,, thrust unit can be convenient to the clamping and the dismounting of broaching tool through being set.
Preferably, be provided with the bellmouth 29 and tapered rod 30 that cooperatively interact between the said center sleeve 21 and said top 22, the diameter of said bellmouth 29 and tapered rod 30 all successively decreases to the direction of afterbody along top 22 heads.With cooperating through pyramidal structure between the center sleeve 21 and top 22, not only can bear and bigger act on the active force on top 22 by broaching tool, and top 22 and center sleeve 21 between more easily to the dress of feeling at ease.
Preferably; Said workbench 1 is provided with guide rail 31, and said V shape iron 6 is provided with the slide block that matches with said guide rail 31, through guide rail 31 and slide block are set; V shape iron 6 can be slided along the direction parallel with slide rail on workbench 1; Also can adjust the distance between adjacent two V shape irons 6, make things convenient for the broaching tool alignment, and the V shape iron 6 of present embodiment is provided with two.
Introduce the procedure of the broaching tool coalignment alignment broaching tool that adopts present embodiment below.
According to broaching tool length; Unclamp locking handgrip 17, regulate two top 22 position, make the distance between two top 22 a little longer than broach length; Lock two locking handgrips 17 again; This moment, two sliding seats 3 just became the integral body that can on slide rail 2, slide synchronously, moved a sliding seat 3, and another sliding seat 3 also slides together; Top two central aperture two of broaching tool, shake handle 26, drive handwheel 25 rotations, make screw rod 24 rotations and drive adjusting nut 23 and move, center sleeve 21 is moved with top 22 together, withstand the broaching tool centre bore up to top 22.
Not need with top 22 and broaching tool between push up too tightly, broaching tool can rotate between two top 22, also can on broaching tool, find the point that needs alignment easily with sliding seat 3 move left and right; On broaching tool, find after the point that needs alignment, this is needed the point of alignment to move to press below the hammer, to pressing down, making top slide 4 be that rotating shaft is rotated down with connecting rod 5 with broaching tool, make need on the broaching tool point of alignment to be and two V shape irons 6 between; Broaching tool is depressed after the certain distance, just acts directly on the V shape iron 6, and is as shown in Figure 3; When broaching tool was depressed, weight was G to the broaching tool active force, and two ends V shape iron 6 is given broaching tool opposition N; The effect certain hour, broaching tool will occur bending and deformation, and finally reaches the purpose of alignment.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (10)
1. broaching tool coalignment; It is characterized in that: two sliding seats that comprise workbench, be arranged on the slide rail of said workbench rear side, are slidingly matched with said slide rail and with the corresponding one by one setting of said sliding seat and respectively with said sliding seat along synchronization-moving two the top slides of slide rail direction; Said two sliding seats all are sleeved on the connecting rod that laterally arranges with said slide rail; Said top slide one end and said connecting rod are rotatably assorted; The other end is supported on the said sliding seat through spring supporting device; Said top slide is provided with the Finial device that is used for the clamping broaching tool towards the front end of said workbench, and said workbench is provided with at least two V shape irons, and said sliding seat is provided with the locking device that is used for sliding seat and the locking of said connecting rod.
2. broaching tool coalignment according to claim 1; It is characterized in that: also be provided with slide rail regulating device between said slide rail and the said workbench; Said slide rail regulating device comprises at least two adjusting slide rails and is fixedly connected with said workbench rear side and L-shaped back-up block; Said adjusting slide rail is the L type; And be respectively equipped with vertically the waist shape button head screw hole I that extends on the two side of said adjusting slide rail and along waist shape button head screw hole II perpendicular to said slide rail direction, threaded fastener extend through this waist shape button head screw hole I and waist shape button head screw hole II respectively be arranged on said slide rail on screwed hole and the screwed hole that is arranged on the said back-up block match.
3. broaching tool coalignment according to claim 2; It is characterized in that: said spring supporting device comprises spring lever and is sleeved on the spring on this spring lever; The two ends of said spring lever are set in the through hole that is arranged on said sliding seat and the top slide, and said spring is between said sliding seat and top slide.
4. broaching tool coalignment according to claim 1; It is characterized in that: said locking device comprises lock handle and is threaded with this lock handle and is arranged on the locking hole on the said sliding seat, said locking hole be arranged on said sliding seat on and the connecting hole that is used for the said connecting rod of suit communicate.
5. broaching tool coalignment according to claim 1 is characterized in that: said sliding seat is provided with the chute that matches with said slide rail, is equipped with single-row radial ball bearing between the two side of said chute and chute top and the said slide rail.
6. broaching tool coalignment according to claim 1; It is characterized in that: said top slide front end is provided with the installing hole that is used to install Finial device; Said Finial device comprises the center sleeve that is sleeved in the said installing hole and is installed in top in the center sleeve that said top axis is parallel with said slide rail.
7. broaching tool coalignment according to claim 1; It is characterized in that: said top slide front end is provided with the installing hole that is used to install Finial device; Said Finial device comprises the center sleeve that is sleeved in the said installing hole, be installed in top in the center sleeve and be used to promote said top and center sleeve along installing hole thrust unit in axial sliding, and said top axis is parallel with said slide rail.
8. broaching tool coalignment according to claim 7; It is characterized in that: said thrust unit comprises the adjusting nut that is fixedly mounted in the said center sleeve, the screw rod that cooperates with this adjusting nut; And handwheel that circumferentially is fixedly connected with said screw rod and the handle that is arranged on the handwheel edge, be provided with rotary axle box between said screw rod and the said installing hole and be arranged on said screw rod and said rotary axle box between bearing.
9. according to claim 6 or 7 or 8 described broaching tool coalignments, it is characterized in that: said center sleeve and saidly be provided with bellmouth and the tapered rod that cooperatively interacts between top, the diameter of said bellmouth and the tapered rod all direction along top head to afterbody successively decreases.
10. broaching tool coalignment according to claim 1 is characterized in that: said workbench is provided with guide rail, and said V shape iron is provided with the slide block that matches with said guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205179344U CN202343652U (en) | 2011-12-13 | 2011-12-13 | Broaching tool straightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205179344U CN202343652U (en) | 2011-12-13 | 2011-12-13 | Broaching tool straightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343652U true CN202343652U (en) | 2012-07-25 |
Family
ID=46532678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205179344U Expired - Fee Related CN202343652U (en) | 2011-12-13 | 2011-12-13 | Broaching tool straightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513412A (en) * | 2011-12-13 | 2012-06-27 | 重庆工具厂有限责任公司 | Broach straightening device |
| CN104070084B (en) * | 2013-03-25 | 2016-05-18 | 金东纸业（江苏）股份有限公司 | Paper knife linearity means for correcting |
| CN111975902A (en) * | 2020-09-02 | 2020-11-24 | 湘潭大学 | Automatic bamboo flute blank straightener |
| CN113458489A (en) * | 2021-07-09 | 2021-10-01 | 浙江工贸职业技术学院 | Automatic correction device and method for spline broach and circular hole broach |
-
2011
- 2011-12-13 CN CN2011205179344U patent/CN202343652U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513412A (en) * | 2011-12-13 | 2012-06-27 | 重庆工具厂有限责任公司 | Broach straightening device |
| CN102513412B (en) * | 2011-12-13 | 2014-04-30 | 重庆工具厂有限责任公司 | Broach straightening device |
| CN104070084B (en) * | 2013-03-25 | 2016-05-18 | 金东纸业（江苏）股份有限公司 | Paper knife linearity means for correcting |
| CN111975902A (en) * | 2020-09-02 | 2020-11-24 | 湘潭大学 | Automatic bamboo flute blank straightener |
| CN111975902B (en) * | 2020-09-02 | 2023-11-10 | 湘潭大学 | Automatic bamboo flute blank straightener |
| CN113458489A (en) * | 2021-07-09 | 2021-10-01 | 浙江工贸职业技术学院 | Automatic correction device and method for spline broach and circular hole broach |
| CN113458489B (en) * | 2021-07-09 | 2022-05-27 | 浙江工贸职业技术学院 | Automatic correction device and method for spline broach and circular hole broach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131213 |