CN114147453A - Device for pressing three-ball pin - Google Patents
Device for pressing three-ball pin Download PDFInfo
- Publication number
- CN114147453A CN114147453A CN202210008239.8A CN202210008239A CN114147453A CN 114147453 A CN114147453 A CN 114147453A CN 202210008239 A CN202210008239 A CN 202210008239A CN 114147453 A CN114147453 A CN 114147453A
- Authority
- CN
- China
- Prior art keywords
- pressing
- sleeve
- sliding groove
- pressing head
- hole
- 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.)
- Pending
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 111
- 238000001514 detection method Methods 0.000 claims description 36
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 230000008093 supporting effect Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 17
- 230000001976 improved effect Effects 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 10
- 238000011161 development Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 101100489867 Mus musculus Got2 gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 208000010727 head pressing Diseases 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a device for pressing a three-ball pin, and belongs to the technical field of automobile part processing. A device for pressing a three-ball pin comprises a vertical frame, a feeding manipulator and a pressing head; according to the invention, the support seat and the pressing driver with the pressing head are respectively arranged at the lower part and the upper part of the vertical frame, the intermediate shaft to be processed and sleeved with the three-fork joint ball ring is vertically installed through the support seat and the pressing head, and then the three-ball pin clamped by the feeding manipulator is automatically pressed into the clamping groove at one end of the intermediate shaft through the pressing head, so that the automatic installation of the three-ball pin on the intermediate shaft is realized, the processing efficiency is improved, the manual pressing is not needed, the working burden of operators is effectively reduced, the problem of damage to hands caused by manual operation is avoided, the labor and the time are saved, the labor cost is reduced, the safety guarantee is improved, and the processing requirement of high-speed development of the automobile industry is met.
Description
Technical Field
The invention relates to the technical field of automobile part processing, in particular to a device for pressing a three-ball pin.
Background
The automobile driving shaft assembly is used as a main structural part of an automobile, is an indispensable structure for automobile operation, and has large market demand and high requirement.
The drive shaft assembly includes terminal universal joint, installs trident joint ball ring in the one end of jackshaft promptly, and both carry out circumference spacingly through mutually supporting of gear spline, simultaneously, locate the axial spacing to trident joint ball ring through the step of jackshaft and the card three ball round pin realization on the jackshaft. However, current tripod is the jump ring structure, and the process of installing trident joint ball ring on the jackshaft is mainly manual operation, is about to locate the back on the tip of jackshaft at trident joint ball ring cover, and the artifical tripod of taking cover is located on the end of jackshaft and is pushed down to the draw-in groove in, realizes the installation of trident joint ball ring on the jackshaft. Although the installation can be realized by the mode, the efficiency is low, the labor cost is high, meanwhile, the working strength is increased, the problem of hand damage is easily caused, and the requirement of the automobile industry of high-speed development is difficult to meet.
Disclosure of Invention
To the above-mentioned problem that exists among the prior art, it aims at providing a device of pressure three ball round pins now, with upper portion and the lower part at the grudging post are provided with down driver and supporting seat respectively, and install the pressure head on pushing down the driver, realized pressing in the automatic draw-in groove of three ball round pins that the manipulator clamp was got through the pressure head, realized the automatic installation to three ball round pins, both improved machining efficiency, still alleviateed operating personnel's work burden, it is laborsaving and time-saving, the problem of artifical manual operation adversary's damage has been avoided, the safety guarantee nature is higher, the demand of the high-speed development of automobile industry has been satisfied better.
The specific technical scheme is as follows:
a device for pressing a tripod ball, characterized in that it comprises:
the vertical frame is vertically arranged, a supporting seat is arranged at the lower part of the vertical frame, and a downward pressing driver which is vertically arranged downwards and corresponds to the supporting seat is arranged at the upper part of the vertical frame;
the feeding manipulator is arranged on the vertical frame and positioned between the supporting seat and the lower pressing driver, and the feeding manipulator moves between the material storage part and the lower pressing driver;
the pressure head is arranged on the downward pressing driver and comprises a connecting plate, a pressure head sleeve, a top tip body, a top tip and a first telescopic spring, the upper end of the connecting plate is fixed on a driving shaft of the downward pressing driver, the upper end of the pressure head sleeve is fixed at the lower end of the connecting plate, the upper end of the top tip body is inserted into the hollow part of the pressure head sleeve, the lower end of the top tip body extends out of the pressure head sleeve, moreover, a vertically sunken embedding hole is arranged on the end surface of the lower end of the centre body, the upper end of the centre is slidably arranged in the embedding hole, the lower end of the centre extends out of the embedding hole, moreover, a first expansion spring is arranged in the embedding hole, two ends of the first expansion spring are respectively propped against the top and the bottom of the embedding hole, meanwhile, a first sliding groove is formed in the center body along the axial direction of the center body, an anti-rotation pin is arranged in the first sliding groove and extends out of the first sliding groove, and one end, extending out of the first sliding groove, of the anti-rotation pin is fixed on the pressure head sleeve.
The utility model provides a foretell device of pressing three ball round pins, wherein, the pressure head still includes detection assembly, detection assembly is including detecting the sleeve, second expanding spring and displacement sensor, it is outer to detect the sleeve cover and locate the pressure head cover, set up the second spout of arranging along its axial on the telescopic lateral wall of detection, the one end that is fixed in the anti-rotation pin on the pressure head cover extends to in the second spout and slides in the second spout, the second expanding spring cover is located outside the pressure head cover and its lower extreme and upper end lean on respectively to be sheathe in the upper end and the pressure head that detect the sleeve, displacement sensor installs on the drive shaft or the connecting plate of pushing down the driver, and displacement sensor's inductive head and detection muffjoint.
In the device for pressing the three-ball pin, the first chute is a through groove which penetrates through the center body in the radial direction, the middle part of the anti-rotation pin is positioned in the first chute, and two ends of the anti-rotation pin are respectively fixed on the pressure head sleeve.
The device for pressing the three-ball pin is characterized in that an adjusting rod is arranged between an induction head of the displacement sensor and the detection sleeve, the lower end of the adjusting rod is fixed on the detection sleeve, and the induction head of the displacement sensor is abutted against the upper end of the adjusting rod.
The device for pressing the three-ball pin is characterized in that a third sliding groove is formed in the outer wall of the detection sleeve along the axial direction of the detection sleeve, a plurality of locking holes are formed in the bottom of the third sliding groove, the lower end of the adjusting rod is slidably arranged in the third sliding groove, a plurality of adjusting holes corresponding to the locking holes are formed in the lower end of the adjusting rod, the locking holes and the corresponding adjusting holes are locked through threaded fasteners, and the adjusting holes are runway-shaped strip-shaped holes arranged along the third sliding groove.
The device for pressing the three-ball pin comprises a supporting seat, a pressing head sleeve and a pressing head, wherein the pressing head sleeve is arranged on the supporting seat, and the pressing head sleeve is arranged on the supporting seat.
The device for pressing the three-ball pin is characterized in that concave avoidance notches are formed in the small cross section end of the pressing portion and located on the two sides of the outer wall of the pressing portion, the two avoidance notches are symmetrically arranged, and meanwhile, the distance between the two avoidance notches is smaller than or equal to the opening distance of the three-ball pin to be installed.
In the device for pressing the tripod ball, the lower opening edge of each avoidance notch is arranged in a downward inclined manner.
The utility model provides a foretell device of three ball round pins, wherein, has seted up the card hole on the inner wall of the orifice department of the hole of inlaying on the top body, is provided with the fender spring in the card hole, and top is located to be provided with round annular bulge on the outer wall of the one end of inlaying in the hole, and the one end of first expanding spring is supported and is leaned on annular bulge to, annular bulge deviates from the one end of first expanding spring and supports and lean on keeping off the spring.
The device of foretell pressure tripod, wherein, the lower extreme of connecting plate is provided with the boss of outstanding downwards, and a plurality of first connecting holes have been seted up in the outside that just is located the boss on the connecting plate, sets up the shrinkage pool that corresponds with the boss on the terminal surface of the upper end of pressure headgear cover, and the outside that just is located the shrinkage pool on the terminal surface of the upper end of pressure headgear cover sets up a plurality of second connecting holes that correspond with first connecting hole, and first connecting hole and second connecting hole pass through threaded fastener locking.
The positive effects of the technical scheme are as follows:
foretell device of pressing three ball round pins, through upper portion and the lower part at the grudging post set up the push down driver and the supporting seat that have the pressure head respectively, the jackshaft that will overlap the three fork joint ball ring is vertical to be installed between supporting seat and pressure head, the automatic draw-in groove of impressing on the jackshaft of three ball round pins that gets with the feeding manipulator clamp through the pressure head, the automatic installation to three ball round pins has been realized, need not manual operation, machining efficiency is higher, operating personnel's work burden has effectively been alleviateed, it is laborsaving and timesaving, the cost of labor has been reduced, the problem that manual operation adversary caused the damage has been avoided, the safety guarantee nature has been improved, do benefit to the high-speed development of auto industry.
Drawings
FIG. 1 is a block diagram of an embodiment of an apparatus for pressing a tripod ball according to the present invention;
FIG. 2 is a block diagram of a ram in accordance with a preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a ram in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a pressing head cover according to a preferred embodiment of the present invention;
FIG. 5 is a block diagram of the tip body in accordance with a preferred embodiment of the present invention;
FIG. 6 is a block diagram of a testing sleeve according to a preferred embodiment of the present invention;
fig. 7 is a structural diagram of a supporting base according to a preferred embodiment of the invention.
In the drawings: 1. erecting a frame; 11. a supporting seat; 12. pressing down the driver; 111. a base; 112. fixing an end cover; 113. expanding sleeves; 114. an elastic ring; 115. a bolt; 116. a top block; 117. ejecting the head; 118. a third extension spring; 119. a fourth extension spring; 1111. a first cavity; 1121. a second cavity; 1131. a limiting step; 1161. a retainer ring; 1162. inclining and chamfering; 1163. a third cavity; 1164. moving the hole; 1171. a limiting hole; 2. a feeding manipulator; 3. a pressure head; 31. a connecting plate; 32. pressing a head sleeve; 33. a tip body; 34. a tip; 35. a first extension spring; 36. a detection component; 311. a fourth chute; 312. a boss; 313. a first connection hole; 321. concave holes; 322. a second connection hole; 331. embedding holes; 332. a first chute; 333. an anti-rotation pin; 334. a pressing part; 335. a clamping hole; 336. a catch spring; 341. an annular projection; 361. detecting the sleeve; 362. a second extension spring; 363. a displacement sensor; 364. adjusting a rod; 3341. avoiding the notch; 3611. a second chute; 3612. a third chute; 3613. a locking hole; 3641. and adjusting the hole.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solutions provided by the present invention with reference to fig. 1 to 7, but the following contents are not to be taken as limitations of the present invention.
Fig. 1 is a structural view of an embodiment of an apparatus for pressing a tripod ball according to the present invention. As shown in fig. 1, the apparatus for pressing a tripod in this embodiment includes: the vertical frame 1, the loading manipulator 2 and the press head 3.
Specifically, the vertical arrangement of grudging post 1, the lower part of grudging post 1 is provided with supporting seat 11, and the upper portion of grudging post 1 is provided with vertical arranging down and with the lower pressure driver 12 that supporting seat 11 corresponds, acts on the upper and lower both ends of the jackshaft of treating the processing respectively through supporting seat 11 and lower pressure driver 12 promptly, provides the condition in the draw-in groove of jackshaft one end for follow-up impressing the tripod.
Specifically, material loading manipulator 2 sets up on grudging post 1 and is located between supporting seat 11 and the push down driver 12, at this moment, material loading manipulator 2 comes and goes between storage portion and push down driver 12, when the three ball round pins of transmission come on the conveyer belt of storage portion, three ball round pins can be got to the hand grab among material loading manipulator 2, then transport the three ball round pins of getting to push down driver 12 department, the follow-up three ball round pins of transferring material loading manipulator 2 through push down pressure head 3 on driver 12 and coming of impressing in the epaxial draw-in groove of jackshaft provides the condition, the automatic feeding of three ball round pins has been realized, it is more convenient to operate, the efficiency is improved, work burden has been alleviateed, time saving and labor saving, the structural design is more reasonable.
FIG. 2 is a block diagram of a ram in accordance with a preferred embodiment of the present invention; FIG. 3 is a cross-sectional view of a ram in accordance with a preferred embodiment of the present invention; FIG. 4 is a schematic diagram of a pressing head cover according to a preferred embodiment of the present invention; fig. 5 is a structural view of the tip body according to a preferred embodiment of the present invention. As shown in fig. 2, 3, 4 and 5, the pressing head 3 is disposed on the pressing driver 12, so that the pressing head 3 can move along with the driving shaft of the pressing driver 12, providing conditions for subsequently pressing the three-ball pin into the corresponding slot. At this time, the ram 3 further includes a connecting plate 31, a ram sleeve 32, a ram body 33, a ram 34, and a first extension spring 35, and the upper end of the connecting plate 31 is fixed to the driving shaft of the down driver 12, that is, the ram 3 is connected to the driving shaft of the down driver 12 through the connecting plate 31, so that the ram 3 is mounted on the down driver 12. Meanwhile, the upper end of the pressure head sleeve 32 is fixed at the lower end of the connecting plate 31, so that the stable installation of the pressure head sleeve 32 on the connecting plate 31 is realized, the upper end of the top point body 33 is inserted into the hollow of the pressure head sleeve 32, the top point body 33 can slide in the hollow of the pressure head sleeve 32 in the vertical direction, and the lower end of the top point body 33 extends out of the pressure head sleeve 32, namely when the subsequent top point body 33 slides in the hollow of the pressure head sleeve 32, the lower end of the top point body 33 can gradually retract into the hollow of the pressure head sleeve 32, so that the lower end face of the pressure head sleeve 32 can downwards extrude the three-ball pin sleeved on the lower end of the top point body 33, the three-ball pin is extruded into the clamping groove of the intermediate shaft to be processed, and conditions are provided for the installation of the three-ball pin. In addition, a vertically recessed embedding hole 331 is formed in the end face of the lower end of the tip body 33, and the upper end of the tip 34 is slidably arranged in the embedding hole 331, that is, the tip 34 can slide in the embedding hole 331, so that a buffer space is provided for the tip 34, and the problem that the tip 34 or an intermediate shaft is crushed in the subsequent processing process is solved.
In addition, the lower end of the center 34 extends out of the embedding hole 331, that is, the lower end of the center 34 protrudes out of the embedding hole 331 on the center body 33, so that when the pressing head 3 presses down, the lower end of the center 34 can be abutted against the processing center hole of the intermediate shaft to be processed, thereby ensuring the concentricity of the center body 33 and the intermediate shaft to be processed, and providing conditions for the three-ball pin sleeved on the subsequent center body 33 to be extruded into the clamping groove on the central shaft by the pressing head sleeve 32. And, be provided with first expanding spring 35 in the inlay hole 331, the both ends of first expanding spring 35 support respectively and lean on top 34 and the hole bottom of inlay hole 331 for support tightly through first expanding spring 35 between top 34 and the inlay hole 331, thereby make top 34 have certain mobility in inlay hole 331, the structure is more nimble, can adapt to the tight demand of support of difference, can also prevent the structure problem of crushing.
Meanwhile, the first sliding groove 332 is formed in the center body 33 along the axial direction of the center body, so that the first sliding groove 332 has a certain length in the vertical direction, and the use requirement of the center body 33 moving in the hollow space of the pressing head sleeve 32 is met, in addition, an anti-rotation pin 333 is arranged in the first sliding groove 332, the anti-rotation pin 333 extends out of the first sliding groove 332, one end of the anti-rotation pin 333 extending out of the first sliding groove 332 is fixed on the pressing head sleeve 32, namely, the anti-rotation pin 333 can limit the circumferential rotation of the center body 33 while ensuring the telescopic motion of the center body 33 in the vertical direction, a condition is provided for the feeding manipulator 2 to accurately sleeve the transferred three-ball pin on the lower end of the center body 33, the problem that the three-ball pin cannot be sleeved after the center body 33 rotates is avoided, and the structural design is more reasonable.
FIG. 6 is a block diagram of a detecting sleeve according to a preferred embodiment of the present invention. As shown in fig. 3 to 6, the ram 3 further includes a detection component 36, and the detection component 36 detects whether the three-ball pin transferred by the feeding manipulator 2 is sleeved on the lower end of the center body 33, so as to prevent the subsequent no-load operation. At this moment, the detecting component 36 further includes a detecting sleeve 361, a second extension spring 362 and a displacement sensor 363, the detecting sleeve 361 is sleeved outside the pressure head sleeve 32, and the detecting sleeve 361 can slide along the vertical direction outside the pressure head sleeve 32, and meanwhile, a second sliding groove 3611 arranged along the axial direction of the detecting sleeve 361 is provided on the side wall of the detecting sleeve 361, so that the second sliding groove 3611 also has a certain length in the vertical direction, and meets the sliding requirement of the detecting sleeve 361 on the pressure head sleeve 32. In addition, one end of the anti-rotation pin 333 fixed to the head pressing sleeve 32 extends into the second sliding groove 3611 and slides in the second sliding groove 3611, that is, the anti-rotation pin 333 also limits the circumferential rotation of the detection sleeve 361, so that a condition is provided for the subsequent detection sleeve 361 to be stably matched with the displacement sensor 363, the problem that the displacement sensor 363 cannot detect after the detection sleeve 361 rotates is avoided, and the structural design is more reasonable.
In addition, the second extension spring 362 is sleeved outside the pressure head sleeve 32, and the lower end and the upper end of the second extension spring are respectively abutted to the upper end of the detection sleeve 361 and the pressure head sleeve 32, that is, the detection sleeve 361 and the pressure head sleeve 32 are abutted tightly by the second extension spring 362, so that the condition that the subsequent detection sleeve 361 can be automatically reset after moving on the pressure head sleeve 32 is provided.
In addition, the displacement sensor 363 is installed on the driving shaft or the connecting plate 31 of the push-down driver 12, and the sensing head of the displacement sensor 363 is connected to the detecting sleeve 361, that is, when the pressure head sleeve 32 moves down along with the driving shaft of the push-down driver 12, the pressure head sleeve 32 is blocked by the three-ball pin sleeved at the lower end of the push-tip body 33, so that the pressure head sleeve 32 slides relative to the detecting sleeve 361, so that the distance between the detecting sleeve 361 and the driving shaft or the connecting plate 31 of the push-down driver 12 is reduced, so that the displacement sensor 363 senses and generates an electrical signal, and determines that the lower end of the push-tip body 33 is already sleeved with the three-ball pin, the subsequent push-down operation can be continued, if the three-ball pin is missed at the lower end of the push-tip body 33 when the pressure head sleeve 32 moves down along with the driving shaft of the push-down driver 12, the detecting sleeve 361 cannot move down synchronously along with the push-tip sleeve 32, so that the distance between the detecting sleeve 361 and the driving shaft or the connecting plate 31 of the push-down driver 12 is unchanged, the displacement sensor 363 does not sense, and then judges that the lower end of the center body 33 is not sleeved with the three-ball pin, and blocks subsequent pressing operation, so that no-load operation is prevented, the cost is saved while the safety is improved, the anti-missing detection of the three-ball pin is realized, and the automation degree is higher.
More specifically, first spout 332 is the logical groove that radially runs through along the apex body 33, and the middle part of preventing rotating pin 333 is located first spout 332 for apex body 33 both sides receive the limiting displacement of preventing rotating pin 333 the same, and the atress is more even, and the restriction effect is better, and stability is higher, and in addition, the processing of first spout 332 as the logical groove that runs through is more convenient. Meanwhile, two ends of the anti-rotation pin 333 are respectively fixed on the pressure head sleeve 32, so that two connecting points are arranged between the anti-rotation pin 333 and the pressure head sleeve 32, the connecting strength of the anti-rotation pin 333 and the pressure head sleeve is enhanced, and the structural design is more reasonable.
More specifically, be provided with between displacement sensor 363's inductive head and the detection sleeve 361 and adjust pole 364, simultaneously, adjust the lower extreme of pole 364 and be fixed in on the detection sleeve 361, displacement sensor 363's inductive head supports and leans on in the upper end of adjusting pole 364, has realized the connection between displacement sensor 363 and the detection sleeve 361 through adjusting pole 364 promptly for certain interval has between displacement sensor 363 and the detection sleeve 361, has provided installation and working space for second expanding spring 362, and structural design is more reasonable.
More specifically, a third sliding groove 3612 is formed in the outer wall of the detection sleeve 361 along the axial direction thereof, so that the third sliding groove 3612 can cover all or most of the area in the length direction of the detection sleeve 361, a plurality of locking holes 3613 are formed in the groove bottom of the third sliding groove 3612, the lower end of the adjusting rod 364 is slidably arranged in the third sliding groove 3612, the adjusting rod 364 can move in the third sliding groove 3612 along the axial direction of the detection sleeve 361, the installation position of the adjusting rod 364 on the detection sleeve 361 is adjusted, the distance between the adjusting rod 364 and the displacement sensor 363 is adjusted, and different processing requirements are met. In addition, the lower end of the adjusting rod 364 is provided with a plurality of adjusting holes 3641 corresponding to the locking holes 3613, the locking holes 3613 and the corresponding adjusting holes 3641 are locked by threaded fasteners, that is, after the locking holes 3613 and the adjusting holes 3641 are fixed by the threaded fasteners, the stable installation of the adjusting rod 364 on the detecting sleeve 361 can be realized. In addition, the adjusting holes 3641 are track-shaped strip-shaped holes arranged along the arrangement direction of the third sliding groove 3612, at this time, the adjusting holes 3641 arranged in the track-shaped strip-shaped holes can better adapt to the moving direction of the adjusting rod 364 during adjustment, so that the adjusting flexibility is higher, and the adaptability is better.
More specifically, the connecting plate 31 is provided with a fourth sliding groove 311 on one side thereof, and the upper end of the adjusting rod 364 is slidably disposed in the fourth sliding groove 311, that is, when the adjusting rod 364 moves along with the detecting sleeve 361, the upper end of the adjusting rod 364 can be guided by the fourth sliding groove 311, so that the moving stability of the adjusting rod 364 is ensured, and therefore the adjusting rod 364 can be better matched with the displacement sensor 363 to detect more accurately and reliably.
More specifically, the portion of the lower end of the center body 33 extending out of the pressing head sleeve 32 is a pressing portion 334, at this time, the pressing portion 334 is arranged in a circular truncated cone shape, meanwhile, the small cross-section end of the pressing portion 334 is the end close to the pressing head sleeve 32, the large cross-section end of the pressing portion 334 is the end facing the support seat 11, that is, the large head end of the pressing portion 334 is the lower end thereof, and the small head end thereof is the upper end thereof, so that when the three-ball pin subsequently sleeved on the lower end of the center body 33 is pressed down by the pressing head sleeve 32, the three-ball pin can be gradually expanded by the pressing portion 334, thereby expanding the inner diameter of the three-ball pin to be the same as the diameter of the end of the intermediate shaft to be processed, and being sleeved in the clamping groove of the end of the intermediate shaft to be processed, thereby realizing automatic installation of the three-ball pin. In addition, the hollow of the lower end of the pressing head sleeve 32 is arranged in a hole expansion manner in a circular truncated cone shape corresponding to the pressing part 334, so that when the tip 34 on the tip body 33 abuts against the end part of the intermediate shaft to be processed, and the pressing head sleeve 32 vertically moves downwards under the action of the driving shaft of the pressing driver 12, the tip body 33 retracts towards the hollow of the pressing head sleeve 32 relative to the pressing head sleeve 32, namely the pressing part 334 arranged in a circular truncated cone shape can be better accommodated by the hollow arranged in the hole expansion manner in which the lower end of the pressing head sleeve 32 is in a circular truncated cone shape, the pressing part 334 of the tip body 33 can smoothly enter the hollow of the pressing head sleeve 32, a sufficiently long stroke is provided for the pressing head sleeve 32, and conditions are provided for the subsequent pressing head sleeve 32 to press the three-ball pins on the pressing part 334.
More specifically, the both sides that the tip of the little cross-section of the portion 334 that pushes down served and lie in its outer wall all set up the indent dodge breach 3341, and, two dodge breach 3341 symmetrical arrangement, the thickness of the little cross-section end of the portion 334 that pushes down has been reduced through two dodge breachs 3341, and simultaneously, two dodge the opening distance that the distance between the breach 3341 is less than or equal to the tripod head of waiting to install, make in the follow-up automatic working process, the tripod head that material loading manipulator 2 transported and come can pass through its opening and dodge the position between the breach 3341 on the portion 334 down through two, thereby locate the tripod head 334 with the tripod head smoothly on, the material loading of tripod head has been made things convenient for, structural design is more reasonable.
More specifically, the lower opening edge of each avoidance notch 3341 is arranged in a downward inclined manner, that is, after the tripod pin is sleeved on the lower pressing portion 334 and in the process of moving down the pressure head sleeve 32, the lower opening edge of each avoidance notch 3341 arranged in a downward inclined manner can provide a guide for the downward movement of the tripod pin, so that the tripod pin can be smoothly pressed down, and the structural design is more reasonable.
More specifically, seted up card hole 335 on the inner wall of the accent of the hole 331 that inlays on the top body 33, simultaneously, be provided with in the card hole 335 and keep off spring 336, top 34 is located and is provided with round annular bulge 341 on the outer wall of the one end in inlaying the hole 331, the one end of first expanding spring 35 supports and leans on annular bulge 341, provides for first expanding spring 35 on top 34 through annular bulge 341 promptly and supports the basis, has improved first expanding spring 35 and top 34 complex stability. Moreover, one end of the annular protrusion 341 away from the first extension spring 35 abuts against the stop spring 336, and the tip 34 can be limited in the embedding hole 331 through the cooperation of the stop spring 336 and the annular protrusion 341, so that the tip 34 is prevented from falling out of the embedding hole 331. Preferably, a gasket is further disposed between the blocking spring 336 and the annular protrusion 341, and a contact area between the blocking spring 336 and the annular protrusion 341 is further increased by the gasket, so that structural strength and stability are improved, and structural design is more reasonable.
More specifically, the lower extreme of connecting plate 31 is provided with the boss 312 that is outstanding downwards, a plurality of first connecting holes 313 have been seted up in the outside that just is located boss 312 on connecting plate 31, and simultaneously, set up the shrinkage pool 321 that corresponds with boss 312 on the terminal surface of the upper end of pressure head cover 32, a plurality of second connecting holes 322 that correspond with first connecting hole 313 have been seted up in the outside that just is located shrinkage pool 321 on the terminal surface of the upper end of pressure head cover 32, and first connecting hole 313 and second connecting hole 322 pass through threaded fastener locking, make when installing pressure head cover 32 on connecting plate 31, can realize the location through boss 312 and shrinkage pool 321, the accuracy of connection has been guaranteed, the assembly efficiency is improved, and simultaneously, lock first connecting hole 313 and second connecting hole 322 through threaded fastener, the dismouting has been made things convenient for, the structural design is more reasonable.
More specifically, because the lower extreme of jackshaft also need overlap and establish a snap ring, consequently, need realize the installation to the snap ring through supporting seat 11 when pushing down driver 12 to realize the synchronous installation to the three ball round pins at jackshaft both ends and snap ring, improve machining efficiency. Fig. 7 is a structural view of a support base according to a preferred embodiment of the present invention, as shown in fig. 1 and 7, the support base 11 includes a base 111, a fixed end cap 112, an expansion sleeve 113, an elastic ring 114, a bolt 115, a top block 116, a top 117, a third expansion spring 118 and a fourth expansion spring 119, at this time, the base 111 is installed on the lower portion of the stand 1, a first cavity 1111 with an upper opening is opened on the upper surface of the base 111, the third expansion spring 118 is disposed in the first cavity 1111, the top block 116 is arranged in a cylindrical manner, a ring-shaped retainer ring 1161 is disposed on the outer wall of the middle portion of the top block 116, the top block 116 is vertically arranged and the lower end thereof is inserted into the first cavity 1111, meanwhile, the third expansion spring 118 abuts against the retainer ring 1111, in addition, the expansion sleeve 113 is arranged in a cylindrical manner, the expansion sleeve 113 is sleeved on the upper end of the top block 116 and is located above the retainer ring 1161, so that the top block 116 can move up and down in the expansion sleeve 113, the condition is provided for the clamping ring to be clamped into the limiting groove of the intermediate shaft by the relative movement of the jacking block 116 and the expansion sleeve 113 when the intermediate shaft is pressed down subsequently. Meanwhile, a plurality of cutting grooves are formed in the side wall of the expansion sleeve 113 in the axial direction, each cutting groove extends from the opening of the upper end of the cutting groove to the middle end, the plurality of cutting grooves are distributed in an annular array by taking the axis of the expansion sleeve 113 as the axis, the elastic ring 114 is sleeved outside the upper end of the expansion sleeve 113, so that the elastic ring 114 can compress the upper end of the expansion sleeve 113, the inner cavity of the expansion sleeve 113 can be expanded when the middle shaft is pressed downwards subsequently, the clamping ring can be matched with the expansion sleeve 113 and pushed into the limiting groove in the middle shaft by the expansion sleeve 113, conditions are provided for installation of the clamping ring on the middle shaft, the elastic ring 114 can be used for resetting after the operation is completed, and the reuse requirements are met. In addition, the bottom end of the fixed end cover 112 is provided with a second cavity 1121 with a lower opening and an upper opening, the lower opening of the second cavity 1121 is larger than the upper opening of the first cavity 1111, the upper opening of the second cavity 1121 is arranged in a necking manner, the expansion sleeve 113 is arranged in the second cavity 1121, the upper end of the expansion sleeve 113 extends out of the upper opening of the second cavity 1121, the lower end of the expansion sleeve 113 abuts against the base 111, the fixed end cover 112 is fixed on the base 111, and the fixed end cover 112 limits and protects the expansion sleeve 113.
In addition, the edge of the top surface of the upper end of the top block 116 is provided with an inclined chamfer 1162, the orifice of the inner cavity of the upper end of the expansion sleeve 113 is provided with a limit step 1131, when the intermediate shaft is not pressed down, the limit step 1131 is lower than or consistent with the lower edge of the inclined chamfer 1162, so that when the snap ring is subsequently installed, the snap ring is initially sleeved on the inclined chamfer 1162 of the top block 116 and the outer edge of the snap ring extends to the range of the limit step 1131 of the expansion sleeve 113, then when the intermediate shaft presses down the top block 116, the snap ring moves downwards along with the top block 116 and abuts against the limit step 1131, when the top block 116 continues to move downwards, the snap ring is limited by the limit step 1131, the edge of the end part of the intermediate shaft extrudes the snap ring downwards, so that the snap ring is expanded and extrudes the orifice of the inner cavity of the expansion sleeve 113 to be increased in adaptability, so that the intermediate shaft continues to move downwards so that the snap ring moves relative to the intermediate shaft until the position of the limit groove on the intermediate shaft relatively moves, the snap ring is automatically clamped into the limiting groove on the intermediate shaft under the self retraction action and the compression action of the elastic ring 114 on the expansion sleeve 113, and after the pressing driver 12 releases the pressing action on the intermediate shaft, the intermediate shaft and the top block 116 are automatically reset under the action of the third expansion spring 118, so that the end part of the intermediate shaft rises to the upper part of the limiting step 1131, and the expansion sleeve 113 is automatically reset under the action of the elastic ring 114 to wait for the next operation.
In addition, the center of the top block 116 is provided with a concave third cavity 1163, meanwhile, the sidewall of the upper portion of the top block 116 is provided with a moving hole 1164 communicated with the third cavity 1163 along the radial direction thereof, the moving hole 1164 is a strip-shaped hole, the length direction of the moving hole 1164 is the vertical direction, the fourth expansion spring 119 is disposed in the third cavity 1163, the lower end of the top 117 is slidably disposed in the third cavity 1163 and abuts against the fourth expansion spring 119, the upper end of the top 117 extends out of the top block 116, the lower end of the top 117 is provided with a limit hole 1171 along the axial direction of the top block 116, the middle portion of the bolt 115 is fixedly inserted in the limit hole 1171, and the end portion of the bolt 115 extends into the moving hole 1164, preferably, the upper end of the top 117 extending out of the top block 116 is arranged in a conical shape, so that the top 117 can be automatically inserted into the central positioning hole of the intermediate shaft when the subsequent intermediate shaft is mounted on the top block 116, thereby make the jackshaft can arrange with ejector pad 116 is concentric to make the jackshaft follow-up when contacting with the snap ring everywhere area of contact the same, the snap ring atress is more even, thereby makes the snap ring can be expanded smoothly, has made things convenient for the snap ring card to go into to the epaxial spacing inslot of jackshaft, and the structure sets up more rationally. It should be noted that the positions of the moving hole 1164 on the top block 116 and the position-limiting hole 1171 on the top block 117 can be interchanged, that is, the moving hole 1164 is disposed on the top block 117, and the position-limiting hole 1171 is disposed on the top block 116, at this time, the end portion of the pin is fixed in the position-limiting hole 1171, and the middle portion of the pin slides in the moving hole 1164, thereby achieving the installation of the top block 117 on the top block 116.
The device for pressing the three-ball pin provided by the embodiment comprises a vertical frame 1, a feeding manipulator 2 and a pressing head 3; through setting up supporting seat 11 respectively and having the push down driver 12 of pressure head 3 in the lower part and the upper portion at grudging post 1, will treat processing and cover through supporting seat 11 and pressure head 3 and be equipped with the vertical installation of jackshaft of trident joint ball ring, the automatic draw-in groove of jackshaft one end of impressing of the three ball round pins that rethread pressure head 3 got 2 clamps of material loading manipulator, the automatic installation of three ball round pins on the jackshaft has been realized, machining efficiency has been improved, need not the manual work and impress, operating personnel's work burden has effectively been alleviateed, the problem of artifical manual operation adversary's damage has been avoided, labor and time are saved, labor cost is reduced, safety guarantee nature has been improved, the processing demand of the high-speed development of automobile industry is satisfied.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A device for pressing a tripod ball, comprising:
the vertical frame is vertically arranged, a supporting seat is arranged at the lower part of the vertical frame, and the pressing driver which is vertically arranged downwards and corresponds to the supporting seat is arranged at the upper part of the vertical frame;
the feeding manipulator is arranged on the vertical frame and positioned between the supporting seat and the lower pressing driver, and the feeding manipulator moves between the material storage part and the lower pressing driver;
the pressing head is arranged on the downward pressing driver and comprises a connecting plate, a pressing head sleeve, a tip body, a tip and a first telescopic spring, the upper end of the connecting plate is fixed on a driving shaft of the downward pressing driver, the upper end of the pressing head sleeve is fixed at the lower end of the connecting plate, the upper end of the tip body is inserted into the hollow part of the pressing head sleeve, the lower end of the tip body extends out of the pressing head sleeve, a vertically recessed embedding hole is formed in the end face of the lower end of the tip body, the upper end of the tip is slidably arranged in the embedding hole, the lower end of the tip extends out of the embedding hole, the first telescopic spring is arranged in the embedding hole, two ends of the first telescopic spring respectively abut against the bottoms of the tip and the embedding hole, and meanwhile, a first sliding groove is formed in the tip body along the axial direction of the tip body, an anti-rotation pin is arranged in the first sliding groove and extends out of the first sliding groove, and one end of the anti-rotation pin extending out of the first sliding groove is fixed on the pressure head sleeve.
2. The device for pressing the tripod ball according to claim 1, wherein the pressing head further comprises a detection assembly, the detection assembly comprises a detection sleeve, a second expansion spring and a displacement sensor, the detection sleeve is sleeved outside the pressing head sleeve, a second chute arranged along the axial direction of the detection sleeve is formed in the side wall of the detection sleeve, the detection sleeve is fixed on the pressing head sleeve, one end of the anti-rotation pin extends into the second chute and slides in the second chute, the second expansion spring is sleeved outside the pressing head sleeve, the lower end and the upper end of the second expansion spring respectively abut against the upper end of the detection sleeve and the pressing head sleeve, the displacement sensor is mounted on the driving shaft of the pressing driver or the connecting plate, and the sensing head of the displacement sensor is connected with the detection sleeve.
3. The apparatus according to claim 2, wherein the first sliding groove is a through groove passing through the center body in a radial direction, a middle portion of the anti-rotation pin is located in the first sliding groove, and two ends of the anti-rotation pin are respectively fixed to the indenter sleeve.
4. The device for pressing a tripod ball according to claim 3, wherein an adjusting rod is arranged between the sensing head of the displacement sensor and the detecting sleeve, the lower end of the adjusting rod is fixed on the detecting sleeve, and the sensing head of the displacement sensor abuts against the upper end of the adjusting rod.
5. The device for pressing a tripod ball according to claim 4, wherein a third sliding groove is formed on the outer wall of the detection sleeve along the axial direction thereof, a plurality of locking holes are formed at the bottom of the third sliding groove, the lower end of the adjustment rod is slidably disposed in the third sliding groove, a plurality of adjustment holes corresponding to the locking holes are formed at the lower end of the adjustment rod, the locking holes and the corresponding adjustment holes are locked by threaded fasteners, and the adjustment holes are track-shaped strip-shaped holes arranged along the arrangement direction of the third sliding groove.
6. The apparatus according to claim 1, wherein the portion of the lower end of the tip body extending out of the pressing head sleeve is a pressing portion, the pressing portion is arranged in a truncated cone shape, the small cross-section end of the pressing portion is an end close to the pressing head sleeve, the large cross-section end of the pressing portion is an end facing the supporting seat, and the lower end of the pressing head sleeve is hollow and arranged in a truncated cone-shaped hole-expanding manner corresponding to the pressing portion.
7. The device for pressing the tripod ball according to claim 6, wherein concave avoiding notches are formed in the small-section end of the pressing portion and located on two sides of the outer wall of the pressing portion, the two avoiding notches are symmetrically arranged, and the distance between the two avoiding notches is smaller than or equal to the opening distance of the tripod ball to be installed.
8. The apparatus according to claim 6 or 7, wherein the lower opening of each of the escape notches is arranged to be inclined downward.
9. The device for pressing a tripod ball as claimed in claim 1, wherein a locking hole is formed on an inner wall of the opening of the embedding hole of the center body, a stop spring is disposed in the locking hole, a ring-shaped protrusion is disposed on an outer wall of an end of the center body located in the embedding hole, one end of the first expansion spring abuts against the ring-shaped protrusion, and an end of the ring-shaped protrusion, which is away from the first expansion spring, abuts against the stop spring.
10. The apparatus according to claim 1, wherein a boss protruding downward is disposed at a lower end of the connecting plate, a plurality of first connecting holes are formed in the connecting plate and located at an outer side of the boss, a concave hole corresponding to the boss is formed in an end surface of an upper end of the pressing head sleeve, a plurality of second connecting holes corresponding to the first connecting holes are formed in an end surface of an upper end of the pressing head sleeve and located at an outer side of the concave hole, and the first connecting holes and the second connecting holes are locked by a screw fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210008239.8A CN114147453A (en) | 2022-01-05 | 2022-01-05 | Device for pressing three-ball pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210008239.8A CN114147453A (en) | 2022-01-05 | 2022-01-05 | Device for pressing three-ball pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114147453A true CN114147453A (en) | 2022-03-08 |
Family
ID=80449732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210008239.8A Pending CN114147453A (en) | 2022-01-05 | 2022-01-05 | Device for pressing three-ball pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114147453A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008272857A (en) * | 2007-04-27 | 2008-11-13 | Aisin Aw Co Ltd | Oil seal press-in tool |
| CN201175830Y (en) * | 2008-04-11 | 2009-01-07 | 万向集团公司 | Closing ring device for auto assembling three-ball pin and shaft |
| CN204725422U (en) * | 2015-06-12 | 2015-10-28 | 利欧集团股份有限公司 | O type circle quick-fitting device |
| CN207616078U (en) * | 2017-11-29 | 2018-07-17 | 上海纳铁福传动系统有限公司 | Snap spring of transmission shaft neglected loading error-proof detection device |
| CN108772680A (en) * | 2018-08-01 | 2018-11-09 | 昆山捷云智能装备有限公司 | Adaptive pressing machine, automation press mounting system and its pressing method |
| CN208902897U (en) * | 2018-09-25 | 2019-05-24 | 格力电器（芜湖）有限公司 | Detection device |
| CN208913506U (en) * | 2018-09-20 | 2019-05-31 | 毕勤自动化设备（上海）有限公司 | A kind of cold slotting indenter device |
| CN209157612U (en) * | 2018-10-23 | 2019-07-26 | 武汉联航机电有限公司 | A kind of press-loading apparatus |
| CN110614497A (en) * | 2019-09-18 | 2019-12-27 | 天永机械电子（太仓）有限公司 | Automatic press fitting and pressing depth measuring device for valve oil seal |
| CN210172939U (en) * | 2019-05-29 | 2020-03-24 | 苏州飞鼎汽车零部件有限公司 | Special press fitting positioning tool |
| CN112091576A (en) * | 2020-09-09 | 2020-12-18 | 安徽航大智能科技有限公司 | Clamp spring pressure head for shaft and clamp spring assembling method thereof |
| CN212371575U (en) * | 2020-06-02 | 2021-01-19 | 重庆圆恒精密工具有限公司 | Manual clamp spring press-fitting mechanism |
| CN214489514U (en) * | 2021-01-18 | 2021-10-26 | 博格华纳联合传动系统有限公司 | Small snap ring press-fitting device for double-clutch gearbox |
-
2022
- 2022-01-05 CN CN202210008239.8A patent/CN114147453A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008272857A (en) * | 2007-04-27 | 2008-11-13 | Aisin Aw Co Ltd | Oil seal press-in tool |
| CN201175830Y (en) * | 2008-04-11 | 2009-01-07 | 万向集团公司 | Closing ring device for auto assembling three-ball pin and shaft |
| CN204725422U (en) * | 2015-06-12 | 2015-10-28 | 利欧集团股份有限公司 | O type circle quick-fitting device |
| CN207616078U (en) * | 2017-11-29 | 2018-07-17 | 上海纳铁福传动系统有限公司 | Snap spring of transmission shaft neglected loading error-proof detection device |
| CN108772680A (en) * | 2018-08-01 | 2018-11-09 | 昆山捷云智能装备有限公司 | Adaptive pressing machine, automation press mounting system and its pressing method |
| CN208913506U (en) * | 2018-09-20 | 2019-05-31 | 毕勤自动化设备（上海）有限公司 | A kind of cold slotting indenter device |
| CN208902897U (en) * | 2018-09-25 | 2019-05-24 | 格力电器（芜湖）有限公司 | Detection device |
| CN209157612U (en) * | 2018-10-23 | 2019-07-26 | 武汉联航机电有限公司 | A kind of press-loading apparatus |
| CN210172939U (en) * | 2019-05-29 | 2020-03-24 | 苏州飞鼎汽车零部件有限公司 | Special press fitting positioning tool |
| CN110614497A (en) * | 2019-09-18 | 2019-12-27 | 天永机械电子（太仓）有限公司 | Automatic press fitting and pressing depth measuring device for valve oil seal |
| CN212371575U (en) * | 2020-06-02 | 2021-01-19 | 重庆圆恒精密工具有限公司 | Manual clamp spring press-fitting mechanism |
| CN112091576A (en) * | 2020-09-09 | 2020-12-18 | 安徽航大智能科技有限公司 | Clamp spring pressure head for shaft and clamp spring assembling method thereof |
| CN214489514U (en) * | 2021-01-18 | 2021-10-26 | 博格华纳联合传动系统有限公司 | Small snap ring press-fitting device for double-clutch gearbox |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH11129136A (en) | Clamping device | |
| US5901628A (en) | Die lifting system for a turret punch press | |
| EP3078449B1 (en) | Clamp device | |
| EP1588794A1 (en) | Positioning device | |
| CN112008461A (en) | Tool clamp for machining thin-wall workpiece | |
| CN110449931B (en) | Automatic positioning and clamping mechanism for inner hole of workpiece | |
| CN114147453A (en) | Device for pressing three-ball pin | |
| CN220481503U (en) | Pipe fitting internal stay clamping and positioning device and processing equipment | |
| CN210703442U (en) | Automatic assembling device for sealing ring for plug of brake alarm | |
| KR102099898B1 (en) | Blind bolt auto-assembly and caulking device | |
| CN209180152U (en) | A kind of bitubular clamping structure hydraulic support cylinder | |
| CN110722059A (en) | Annular clamp mold processing | |
| US5605068A (en) | Apparatus for rolling a ring-shaped work | |
| CN107825205B (en) | Self-expanding positioning pin mechanism | |
| CN214133651U (en) | Cylinder rounding device | |
| CN210524537U (en) | Automatic positioning and clamping mechanism for inner hole of workpiece | |
| CN210010729U (en) | A biconical frock clamp for cylinder liner processing | |
| EP0319710A2 (en) | Hydraulic clamp | |
| CN105729151B (en) | A kind of inner hole of workpiece positioning tool | |
| JPH08150520A (en) | Part press-in device | |
| CN210081170U (en) | Quick stabilizing mechanism for connecting angle head | |
| CN205551511U (en) | Circular bar stock clamping device | |
| CN218509906U (en) | Positioning mechanism suitable for mesopore location | |
| CN218575987U (en) | Double-positioning expanding positioner | |
| CN219685254U (en) | Thin-wall end cover machining tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220308 |