CN2606655Y - Bench type constant pitch tapping machine withy bottom protection - Google Patents
Bench type constant pitch tapping machine withy bottom protection Download PDFInfo
- Publication number
- CN2606655Y CN2606655Y CN 03239144 CN03239144U CN2606655Y CN 2606655 Y CN2606655 Y CN 2606655Y CN 03239144 CN03239144 CN 03239144 CN 03239144 U CN03239144 U CN 03239144U CN 2606655 Y CN2606655 Y CN 2606655Y
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- nut
- steel ball
- tapping
- main shaft
- pitch
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Abstract
A bench type constant pitch tapping machine withy bottom protection belongs to mechanical processing device technical field, which aims to solve the drawbacks of manual tapping and incapability of bottom over loading protection by a tap of the prior bench tapping machine. The utility model comprises a main shaft case, wherein, the main shaft case comprises a pitch guiding pole device which comprises a guiding pole, a nut, a nub bottom base, a spring, a regulation sheath, a lock sheath and a sliding sheath. The guiding pole and the nut match with each other by screw. The bolt on the head of the guiding pole is fastened on the main shaft. The lock sheath and the sliding sheath are flexibly fixed on the nut bottom base by a concave slot on the wall of the nut bottom base and a steel ball hole and a steel ball of the lock sheath. The regulation sheath is wringed on the lock sheath. The spring is pressed on the nut. When the tap contacts bottom due to over loading, the nut moves upward, the steel ball is pressed into a reversal angle slot opened in the nut to driven a control motor to rotate reversely, thereby realizing bottom over loading protection by the tap. The machine can feed tapping singly or continuously, which is of simple structure and the cost is close with that of the prior bench tapping machine.
Description
Technical field:
The utility model belongs to the machining equipment technical field, relates to a kind of bench tapping machine.
Background technology:
Existing bench tapping machine, the overwhelming majority adopts the feeding handle on the manual operation gear shaft, realizes the axis feeding tapping by the tooth bar on the gear driven rack sleeve on the gear shaft, so labour intensity is big, production efficiency is low, can not adapt to batch process; Manual operation feeding handle, the amount of feeding of feeding tapping is grasped with operator's sensation, so the thread surface roughness of the part to be processed that occurs now and then is inconsistent, even the generation screw thread breaks quality problems such as tooth; In addition, existing bench tapping machine does not have screw tap to touch baselap and carries protective device, in case screw tap touches the end or blind hole tapping, the screw tap phenomenon that fractures takes place easily.
Prior art also has the automatic tapping machine that adopts geared feed, but the structure more complicated, the manufacturing cost height, because of the price height not susceptible to user acceptance.
The utility model content:
At the above-mentioned disadvantage that existing bench tapping machine exists, the utility model one is the auto-feed tapping problem that will solve bench tapping machine.The 2nd, adapt to batch production requirement, the pitch of main shaft and screw tap feed motion, consistent with the pitch of processing parts tapping, even repeat tapping, part can not break tooth.Reduce loss due to spoiled work, guarantee the quality of tapping.The 3rd, there is screw tap to touch baselap and carries protection, even screw tap touches the end or the blind hole tapping can not fracture yet.The 4th, it is simple that structure is wanted, and making improvements design on existing bench tapping machine can achieve the above object, and makes its cost can be approaching with existing bench tapping machine.
The utility model is achieved through the following technical solutions: a kind of desk-top uniform pitch touches end protection tapping machine; comprise main spindle box; main spindle box is equipped with driving wheel; main shaft; gear shaft; two limit switches; the electrical equipment box; support; sleeve and driven pulley are housed on the main shaft; rack and pinion axle engagement on the sleeve; the gear shaft end is equipped with depthkeeping circle and dial; the depthkeeping circle; do not control the briquetting of the tapping degree of depth on the dial; press two limit switch actions respectively; the electrical equipment box is connected with floor push with two limit switches; its main points are to be equipped with on the support pitch guiding device; pitch guiding device is by guide rod; nut; the nut base; spring; adjust cover; the locking cover is formed; guide rod and nut are threaded engagement; guide rod by the bolt tightening of head on main shaft; and according to the different pitch of different part tapping; change the guide rod and the nut of corresponding pitch; the stop pin that prevents that nut from rotating is housed in nut base one hole; steel ball and needle roller are housed in another hole; needle roller one end and the microswitch contact that is connected with the electrical equipment box; the other end contacts with steel ball; nut has the chamfering groove that steel ball is headed into; the activity of locking cover is fixed on the nut base; nut; adjust between the cover spring is housed; the adjustment cover is screwed in locking by screw thread and puts, in order to adjust the elastic force pressure of spring.
The structure that the activity of locking cover is fixed on the nut base is the hole that locking cover lower end has the dress steel ball, have the selenodont groove of a circle on the outer wall of nut base, steel ball is embedded between hole and the groove, sliding sleeve is enclosed within locking cover outer wall, block steel ball, locking cover be fixed on the nut base by steel ball, on carry sliding sleeve, steel ball is promptly deviate from from the groove of nut base, makes the locking cover, adjusts and overlap and can unload from the nut base.
Said structure further be that locking puts and has stopper slot, sliding sleeve is equipped with stop screw, sliding sleeve end inwall has been split chamfering, make the height that is controlled at stop screw activity in stopper slot when proposing on the sliding sleeve, steel ball is deviate from partial volume from the groove of nut base and is fallen into sliding sleeve chamfering position, and steel ball can not come off.
Operation sequence tapping process of the present utility model, to touch end protection action as follows:
One way tapping: according to the screw requirement of processing parts, corresponding screw tap and guide rod, nut are installed, and, regulate the scale of dial to the required tapping degree of depth by adjusting the safe pressure that cover regulates spring, the change-over switch on the electrical equipment box is pushed the one way position.Open power switch and one way starting switch on the electrical equipment box, this moment, motor just changeed, main shaft also just changes thereupon, because guide rod is by being bolted on the main shaft, so guide rod just changes thereupon, because be fixed on nut base under the effect of stop pin, locking cover and spring with the guide rod nut engaged this moment, so can only guide rod, main shaft and sleeve move downward, and carries out the tapping feeding.Sleeve moves downward, tooth bar on it also moves downward, thereby driven gear axle, dial, depthkeeping circle rotate, after screw tap arrives the predetermined tapping degree of depth, briquetting on the dial presses the limit switch action, motor reverses immediately, main shaft is counter-rotating thereupon also, and move upward, sleeve and top tooth bar move upward, and gear shaft and depthkeeping circle are rotated thereupon round about, when sleeve rises to the extreme higher position, briquetting on the depthkeeping circle presses the action of another limit switch, and main shaft stops operating, and finishes an one way tapping.
Tapping continuously: the change-over switch on the electrical equipment box is pushed continuous position, open the power switch on the electrical equipment box, motor just changes, and main shaft just changes thereupon, and following operation program is same as described above.When on the sleeve during to the extreme higher position, the briquetting of depthkeeping circle presses the limit switch action, and motor recovers just to change immediately, realizes continuously circulating tapping.
Touch baselap and carry protection: do not have alignment pieces thread Pilot hole or blind hole tapping at screw tap; the silk dimension withstands surface of the work or blind hole is touched the end; or screw tap is blocked up resistance by smear metal midway in tapping; main shaft still was in and just changeed state this moment; main shaft; guide rod can't continue to move downward; load as a result increases; the axial compressive force that this moment, guide rod produced to nut is greater than the spring safe pressure of setting up; thereby force nut to move upward; when nut moved upward to steel ball and heads into its chamfering groove, steel ball made the microswitch action by needle roller, and main shaft reverses immediately with motor; withdraw from tapping, avoid screw tap to fracture and the workpiece damage.
The floor push protection: in tapping process, being in an emergency maybe to stop the tapping operation, as long as step on floor push, main shaft reverses immediately with motor and withdraws from tapping.
From above structure and operation sequence, tapping process, touch baselap and carry protection action as can be seen, the utlity model has the function of auto-feed tapping, need not manual operation feeding tapping, and can realize continuous tapping, can adapt to the needs of batch process; The supporting manufacturing of guide rod and nut, and consistent with the pitch of processing parts tapping can be avoided the deviation of pitch, guarantees the tapping precision, and foramen primum repeats tapping and can not break tooth; Have screw tap to touch baselap in addition and carry defencive function, screw tap runs into the situation of tapping downwards, and main shaft can be auto-reverse, screw tap is risen automatically withdraw from tapping; Substantially kept the structure of existing bench tapping machine on the structure, improved part-structure is uncomplicated, and is so cost is low, approaching with existing bench tapping machine.
Description of drawings:
Fig. 1: be the complete machine front view that desk-top uniform pitch touches end protection tapping machine
Fig. 2: be main spindle box Facad structure schematic diagram among Fig. 1
Fig. 3: the structural representation that is pitch guiding device among Fig. 1
Among the accompanying drawing 1-3: 1-main spindle box, 2-driving wheel, 3-main shaft, 4-gear shaft, the 5-limit switch, 6-limit switch, 7-electrical equipment box, 8-support, the 9-sleeve, 10-driven pulley, 11-depthkeeping circle, the 12-dial, 13-floor push, 14-pitch guiding device, the 15-guide rod, 16-nut, 17-nut base, the 18-spring, 19-adjusts cover, and 20-locks cover, the 21-stop pin, 22-steel ball, 23-needle roller, the 24-microswitch, 25-chamfering groove, 26-hole, the 27-groove, 28-steel ball, 29-sliding sleeve, the 30-stopper slot, 31-stop screw, 32-chamfering.
The specific embodiment:
By Fig. 1-3 represented be the specific embodiment of the utility model " desk-top uniform pitch touch the end protection tapping machine ", it comprises main spindle box 1, main spindle box 1 is equipped with driving wheel 2, main shaft 3, gear shaft 4, limit switch 5, limit switch 6, electrical equipment box 7, support 8.Sleeve 9 and driven pulley 10 are housed, rack and pinion axle 4 engagements on the sleeve 9 on the main shaft 3.Gear shaft 4 ends are equipped with depthkeeping circle 11 and dial 12.Depthkeeping circle 11, dial 12 are provided with the briquetting of the control tapping degree of depth, press limit switch 5 and 6 actions respectively.Electrical equipment box 7 is connected with floor push 13 with limit switch 5,6.Pitch guiding device 14 is installed on the support 8.Pitch guiding device 14 is made up of guide rod 15, nut 16, nut base 17, sliding sleeve 28, spring 18, adjustment cover 19, locking cover 20.Guide rod 15 is a threaded engagement with nut 16, and guide rod 15 is bolted on the main shaft 3 by head.The stop pin 21 that prevents that nut 16 from rotating is housed in one hole of nut base 17, steel ball 22 and needle roller 23 are housed in another hole, microswitch 24 contacts that needle roller 23 1 ends are connected with electrical equipment box 7, the other end contacts with steel ball 22.Nut 16 has the chamfering groove 25 that steel ball 22 is headed into.Locking cover 20 lower ends have the hole 26 of dress steel ball 28, have the selenodont groove 27 of a circle on the outer wall of nut base 17, and steel ball 28 is embedded between hole 26 and the groove 27.Sliding sleeve 29 is enclosed within locking cover 20 outer walls, blocks steel ball 28, and locking cover 20 is fixed on the nut base 17 by steel ball 28.Have stopper slot 30 on locking cover 20 walls, sliding sleeve 29 is equipped with stop screw 31.Sliding sleeve 29 end inwalls have been split chamfering 32.Between nut 16, the adjustment cover 19 spring 18 is housed, adjustment cover 19 is screwed in locking by screw thread and overlaps on 20, in order to adjust the elastic force pressure of spring 18.
The loading, unloading operation of the pitch guiding device 14 of the foregoing description is as follows:
According to the required pitch of tapping part, select guide rod 15, the nut 16 of identical pitch, nut 16 is contained on the nut base 17, guide rod 15 meshes with nut 16, and the bolt of its head is tightened on the main shaft 3.Lock sleeve 20 is contained on the nut base 17, steel ball 28 is embedded between their hole 26 and groove 27.Sliding sleeve 29 is enclosed within the outer wall of locking cover 20, blocks steel ball 28 and deviate from, locking cover 20 is fixed on the nut base 17 by steel ball 28, on sliding sleeve 29, load onto stop screw 31 again.
As guide rod 15 and the nut 16 that will change different pitch, then sliding sleeve 29 is up drawn, because the stop screw 31 on the sliding sleeve 29 can only be movable in the stopper slot 30 of locking cover 20, so sliding sleeve 29 up can only arrive the top position position of stop screw 31 at stopper slot 30, this moment, the chamfering 32 of sliding sleeve 29 just arrived steel ball 28 positions, so steel ball 28 is deviate from from groove 27, but still in the hole 26 of locking cover 20, can not come off.Lock cover 20 this moment and be connected with 17 disengagements of nut base, locking cover 20, spring 18, sliding sleeve 29, adjustment cover 19 can unload in the lump, unclamp the bolt of guide rod 15 heads, and guide rod 15 and nut 16 can unload from main shaft 3 and nut base 17.
Claims (3)
1; a kind of desk-top uniform pitch touches end protection tapping machine; comprise main spindle box (1); main spindle box (1) is equipped with driving wheel (2); main shaft (3); gear shaft (4); limit switch (5) (6); electrical equipment box (7); support (8); sleeve (9) and driven pulley (10) are housed on the main shaft (3); rack and pinion axle (4) engagement on the sleeve (9); gear shaft (4) end is equipped with depthkeeping circle (11) and dial (12); depthkeeping circle (11); dial (12) is provided with the briquetting of the control tapping degree of depth; press limit switch (5) (6) action respectively; electrical equipment box (7) is connected with floor push (13) with limit switch (5) (6); it is characterized in that being equipped with on the support (8) pitch guiding device (14); pitch guiding device (14) is by guide rod (15); nut (16); nut base (17); spring (18); adjust cover (19); locking cover (20) is formed; guide rod (15) is a threaded engagement with nut (16); guide rod (15) is bolted on the main shaft (3) by head; and according to the different pitch of different part tapping; change the guide rod (15) of corresponding pitch; nut (16); the stop pin (21) that prevents that nut (16) from rotating is housed in nut base (17) one holes; steel ball (22) and needle roller (23) are housed in another hole; microswitch (24) contact that needle roller (23) one ends are connected with electrical equipment box (7); the other end contacts with steel ball (22); nut (16) has the chamfering groove (25) that steel ball (22) is headed into; (20) activity of locking cover is fixed on the nut base (17); nut (16); adjust between the cover (19) spring (18) is housed; adjust cover (19) and be screwed on the locking cover (20), in order to adjust the elastic force pressure of spring (18) by screw thread.
2, desk-top uniform pitch according to claim 1 touches end protection tapping machine; it is characterized in that locking cover (20) lower end has hole (26); have a circle selenodont groove (27) on the outer wall of nut base (17); steel ball (28) is embedded between hole (26) and the groove (27); sliding sleeve (29) is enclosed within locking cover (20) outer wall; block steel ball (28), locking cover (20) is fixed on the nut base (17) by steel ball (28).
3, desk-top uniform pitch according to claim 2 touches end protection tapping machine, it is characterized in that having stopper slot (30) on locking cover (20) wall, and sliding sleeve (29) is equipped with stop screw (31), and sliding sleeve (29) end inwall has been split chamfering (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03239144 CN2606655Y (en) | 2003-03-04 | 2003-03-04 | Bench type constant pitch tapping machine withy bottom protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03239144 CN2606655Y (en) | 2003-03-04 | 2003-03-04 | Bench type constant pitch tapping machine withy bottom protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606655Y true CN2606655Y (en) | 2004-03-17 |
Family
ID=34167497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03239144 Expired - Lifetime CN2606655Y (en) | 2003-03-04 | 2003-03-04 | Bench type constant pitch tapping machine withy bottom protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606655Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110123374A (en) * | 2019-05-28 | 2019-08-16 | 西安工业大学 | A kind of ultrasonic probe and supersonic detection method |
| CN112518049A (en) * | 2020-12-17 | 2021-03-19 | 陕西宝成航空仪表有限责任公司 | Tapping machine for small thread with screw tap anti-breaking protection function |
| CN115026555A (en) * | 2021-06-21 | 2022-09-09 | 国网安徽省电力有限公司 | Climbing operation platform with automatic sleeve replacement function and operation method |
-
2003
- 2003-03-04 CN CN 03239144 patent/CN2606655Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110123374A (en) * | 2019-05-28 | 2019-08-16 | 西安工业大学 | A kind of ultrasonic probe and supersonic detection method |
| CN110123374B (en) * | 2019-05-28 | 2021-09-03 | 西安工业大学 | Ultrasonic probe and ultrasonic detection method |
| CN112518049A (en) * | 2020-12-17 | 2021-03-19 | 陕西宝成航空仪表有限责任公司 | Tapping machine for small thread with screw tap anti-breaking protection function |
| CN115026555A (en) * | 2021-06-21 | 2022-09-09 | 国网安徽省电力有限公司 | Climbing operation platform with automatic sleeve replacement function and operation method |
| CN115026555B (en) * | 2021-06-21 | 2024-05-10 | 国网安徽省电力有限公司 | Climbing operation platform with sleeve automatic replacement function and operation method |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130304 Granted publication date: 20040317 |