CN204308337U - Chasing bar - Google Patents
Chasing bar Download PDFInfo
- Publication number
- CN204308337U CN204308337U CN201420735538.2U CN201420735538U CN204308337U CN 204308337 U CN204308337 U CN 204308337U CN 201420735538 U CN201420735538 U CN 201420735538U CN 204308337 U CN204308337 U CN 204308337U
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- CN
- China
- Prior art keywords
- hole
- shaft
- motor
- driving shaft
- bearing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of chasing bar, comprise bearing, motor, transmission mechanism, fixture and cutter, transmission mechanism comprises power transmission shaft, motor drives cutter to rotate by power transmission shaft, power transmission shaft comprises the driving shaft for being connected with motor and the driven shaft for being connected with cutter, and driving shaft is connected by release mechanism with driven shaft; Release mechanism comprise the master be connected with described driving shaft connect coil, the pair that is connected with driven shaft connects and coils and steel ball, the main dish that connects is respectively equipped with corresponding status of a sovereign hole and hole, secondary position with the end face that pair connects dish, steel ball snaps in described status of a sovereign hole with hole, secondary position to be connected described driving shaft and driven shaft, pair connect dish be also provided be communicated with hole, secondary position establish female adjustment hole, be equipped with adjusting bolt in adjustment hole, between steel ball and adjusting bolt, be provided with spring; The utility model can prevent the damage of motor and other component, ensures carrying out smoothly of tapping operation, improves operating efficiency.
Description
Technical field
The utility model relates to a kind of mechanical production devices, particularly a kind of chasing bar.
Background technology
Chasing bar is a kind of machining equipment processing internal thread, screw at various medial surfaces with the hole of the through hole of different size or the part of blind hole such as parts housing, equipment end face, nut, ring flanges or make tooth buckle.Existing chasing bar generally comprise bearing and be located at motor on bearing, transmission mechanism, for the fixture of holding workpiece and the cutter for carrying out tapping to workpiece, transmission mechanism comprises power transmission shaft, motor drives cutter to rotate by power transmission shaft, and cutter advances to workpiece direction gradually and carries out screwing operation in rotary course; But, make because resistance is excessive when tapping operation cutter stop the rotation sometimes, now power transmission shaft stall and cause motor generation stall, produce the damage that big current causes motor and other component, affect carrying out smoothly of tapping operation, reduce operating efficiency.
Utility model content
In view of this, for solving the problem, the purpose of this utility model is to provide a kind of chasing bar, set up release mechanism, when workpiece produces larger resistance to cutter, release mechanism produces skidding effect, transmission is stopped, prevents the damage of motor and other component, ensure carrying out smoothly of tapping operation, improve operating efficiency.
Chasing bar of the present utility model, comprise bearing and be located at motor on bearing, transmission mechanism, for the fixture of holding workpiece and the cutter for carrying out tapping to workpiece, described transmission mechanism comprises power transmission shaft, described motor drives cutter to rotate by power transmission shaft, described power transmission shaft comprises the driving shaft for being connected with motor and the driven shaft for being connected with cutter, and described driving shaft is connected by release mechanism with driven shaft; Described release mechanism comprise the master be connected with described driving shaft connect coil, the pair that is connected with described driven shaft connects and coils and steel ball, described master connects dish and is respectively equipped with corresponding status of a sovereign hole and hole, secondary position with the end face that pair connects dish, described steel ball snaps in described status of a sovereign hole with hole, secondary position to be connected described driving shaft and driven shaft, described pair connect dish be also provided be communicated with hole, described secondary position establish female adjustment hole, be equipped with adjusting bolt in described adjustment hole, between described steel ball and adjusting bolt, be provided with spring.
The beneficial effects of the utility model: chasing bar of the present utility model, power transmission shaft be divided into two sections and be connected by the release mechanism newly established, when workpiece produces larger resistance to cutter, release mechanism produces skidding effect, namely the carry-over moment between driving shaft and driven shaft exceeds main dish and the pair of connecing when connecing the moment preset between dish, main connect the transmission that dish and pair connect between dish and throw off, to stop transmission process, now motor still autobiography, prevents the damage of motor and other component; Can tapping be proceeded by after removal of obstacle, ensure carrying out smoothly of tapping operation, improve operating efficiency; Main connect the default moment that dish and pair connect between dish and then determined by the elastic force of spring, easy to adjust, reliable.
As further improvement, brace table is provided with between described fixture and bearing, described brace table by be connected vertically move platform and transverse shifting platform forms, the described platform that vertically moves is connected with holder top and can vertically moving along bearing, and described transverse shifting platform is connected with clamp base also can along the transverse shifting of bearing; Brace table can carry out transverse direction, vertically move in bearing plane, just with the position adjusting fixture, ensures the precision of tapping.
As further improvement, described transmission mechanism also comprises gear-box, and the output shaft of described motor is in transmission connection by the gear in gear-box and driving shaft; Gear drive makes the arrangement of motor more diversified, realizes the compactedness requirement of this device; Meanwhile, select also can realize multiple speed change by the concrete model of the gear matched.
As further improvement, described transmission mechanism also comprises the axle box be fixed on bottom described gear-box, and described power transmission shaft is located in axle box; Axle box protection power transmission shaft and release mechanism, make this device more durable, increase the service life.
As further improvement, the longitudinal direction front side of described bearing is provided with vertical column, and described motor, gear-box and axle box are all connected with column by connecting plate, and described connecting plate can along the axially-movable of column; Connecting plate motion makes cutter can to workpiece motion s.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A place enlarged drawing in Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2: in the preferred embodiment, chasing bar comprise bearing 1 and be located at motor 2 on bearing 1, transmission mechanism, for the fixture 4 of holding workpiece and the cutter 5 for carrying out tapping to workpiece, described transmission mechanism comprises power transmission shaft, described motor 2 drives cutter 5 to rotate by power transmission shaft, described power transmission shaft comprises the driving shaft 31 for being connected with motor 2 and the driven shaft 32 for being connected with cutter 5, and described driving shaft 31 is connected by release mechanism with driven shaft 32; Described release mechanism comprises that the master be connected with described driving shaft 31 connects dish 61, the pair that is connected with described driven shaft 32 connects dish 62 and steel ball 63, described master connects dish 61 and is respectively equipped with corresponding status of a sovereign hole and hole, secondary position with the end face that pair connects dish 62, described steel ball 63 snaps in described status of a sovereign hole with hole, secondary position to be connected described driving shaft 31 and driven shaft 32, described pair connect dish 62 be also provided be communicated with hole, described secondary position establish female adjustment hole, be equipped with adjusting bolt 64 in described adjustment hole, between described steel ball 63 and adjusting bolt 64, be provided with spring 65; Brace table is provided with between described fixture 4 and bearing 1, described brace table by be connected vertically move platform 71 and transverse shifting platform 72 forms, the described platform 71 that vertically moves is connected with bearing 1 top and can vertically moving along bearing 1, and described transverse shifting platform 72 is be connected bottom fixture 4 also can along the transverse shifting of bearing 1; Described transmission mechanism also comprises gear-box 30, and the output shaft of described motor 2 is in transmission connection by the gear in gear-box 30 and driving shaft 31, and described transmission mechanism also comprises the axle box 39 be fixed on bottom described gear-box 30, and described power transmission shaft is located in axle box 39; The longitudinal direction front side of described bearing 1 is provided with vertical column 8, and described motor 2, gear-box 30 and axle box 39 are all connected with column 8 by connecting plate 9, and described connecting plate 9 can along the axially-movable of column 8.
What finally illustrate is; although be described in detail detailed description of the invention of the present utility model by reference to the accompanying drawings; but should not be construed as the restriction of the protection domain to this patent; in the scope described by claims, the various amendment that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (5)
1. a chasing bar, comprise bearing and be located at motor on bearing, transmission mechanism, for the fixture of holding workpiece and the cutter for carrying out tapping to workpiece, described transmission mechanism comprises power transmission shaft, described motor drives cutter to rotate by power transmission shaft, it is characterized in that: described power transmission shaft comprises the driving shaft for being connected with motor and the driven shaft for being connected with cutter, described driving shaft is connected by release mechanism with driven shaft; Described release mechanism comprise the master be connected with described driving shaft connect coil, the pair that is connected with described driven shaft connects and coils and steel ball, described master connects dish and is respectively equipped with corresponding status of a sovereign hole and hole, secondary position with the end face that pair connects dish, described steel ball snaps in described status of a sovereign hole with hole, secondary position to be connected described driving shaft and driven shaft, described pair connect dish be also provided be communicated with hole, described secondary position establish female adjustment hole, be equipped with adjusting bolt in described adjustment hole, between described steel ball and adjusting bolt, be provided with spring.
2. chasing bar according to claim 1, it is characterized in that: between described fixture and bearing, be provided with brace table, described brace table by be connected vertically move platform and transverse shifting platform forms, the described platform that vertically moves is connected with holder top and can vertically moving along bearing, and described transverse shifting platform is connected with clamp base also can along the transverse shifting of bearing.
3. chasing bar according to claim 2, is characterized in that: described transmission mechanism also comprises gear-box, and the output shaft of described motor is in transmission connection by the gear in gear-box and driving shaft.
4. chasing bar according to claim 3, is characterized in that: described transmission mechanism also comprises the axle box be fixed on bottom described gear-box, and described power transmission shaft is located in axle box.
5. chasing bar according to claim 4, is characterized in that: the longitudinal direction front side of described bearing is provided with vertical column, and described motor, gear-box and axle box are all connected with column by connecting plate, and described connecting plate can along the axially-movable of column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735538.2U CN204308337U (en) | 2014-11-28 | 2014-11-28 | Chasing bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735538.2U CN204308337U (en) | 2014-11-28 | 2014-11-28 | Chasing bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204308337U true CN204308337U (en) | 2015-05-06 |
Family
ID=53130669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735538.2U Expired - Fee Related CN204308337U (en) | 2014-11-28 | 2014-11-28 | Chasing bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204308337U (en) |
-
2014
- 2014-11-28 CN CN201420735538.2U patent/CN204308337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20151128 |