Disclosure of Invention
In order to improve the assembly efficiency and the accuracy of the bearing when being installed in the bearing seat, the invention provides a high-accuracy bearing seat, which comprises a base, wherein a top cover is detachably installed at the top of the base, a front group of connecting seats and a rear group of connecting seats are respectively arranged at the left end and the right end of the base and the top cover, a notch is formed in the top cover, and the inner end of the notch is communicated with the inner wall of the top cover up and down;
The top cover is provided with an accuracy self-testing mechanism, the accuracy self-testing mechanism comprises a first accuracy detection roller arranged in the notch, and the rolling surface of the first accuracy detection roller is overlapped with the inner cavity surface of the top cover;
The front end of the first precision detection roller penetrates out of the front side of the top cover, a sleeve roller is fixed at the front end of the first precision detection roller, the precision self-detection mechanism further comprises a flange plate sleeved on the sleeve roller, a sliding sleeve which is in sliding fit on the sleeve roller is arranged on the flange plate, a spring pin is arranged in the vertical direction of the sliding sleeve, and the inner end of the spring pin penetrates into the sliding sleeve;
The precision self-testing mechanism further comprises a second precision testing roller sleeved on the sleeve roller, wherein the second precision testing roller is positioned on the front side of the flange plate and the front side of the top cover, a inserted bar which stretches backwards horizontally is fixed at the rear end of the second precision testing roller, and a first inserting hole which is in the same straight line with the inserted bar and the spring pin is formed in the flange plate;
The precision self-testing mechanism further comprises an oil bag sleeved on the sleeve roller, one end of the oil bag is connected to the flange plate, the other end of the oil bag is connected to the second precision detection roller, a drip hole is formed in the top cover, an oil pipe is connected between the drip hole and the oil bag, color oil is filled in the oil bag, the inner end of the drip hole penetrates through the inner wall of the top cover, the oil bag is extruded when the second precision detection roller moves backwards, the color oil in the oil bag enters the drip hole through the oil pipe, and the inner end of the drip hole is dripped on the bearing.
Preferably, the top of the oil bag is provided with an oil nozzle, the oil bag is filled with steel wires, an assembly hole for assembling a bearing is formed between the base and the top cover, the axis of the first precision detection roller is parallel to the axis of the assembly hole, the bearing is arranged in the assembly hole, the transmission shaft is arranged on the bearing, the diameter edge of the second precision detection roller is close to the outer wall of the transmission shaft in the radial direction of the transmission shaft, and the diameter edge of the second precision detection roller is rubber.
Preferably, the inner wall surface of the top cover is arc-shaped, an oil duct is arranged along the middle part of the arc-shaped inner wall of the top cover, the inner end of the drip hole penetrates through the oil duct, and two ends of the oil duct respectively reach two sides of the notch along the arc-shaped inner wall of the top cover.
Preferably, a deep groove is formed along the circumferential direction of the first precision detection roller, the deep groove is positioned on the oil outlet path of the oil duct, and the bottom of the deep groove is higher than the oil duct.
Preferably, a buckle cover is arranged on the notch, and the buckle cover is a transparent cover.
Preferably, the rear face of the second precision detecting roller is parallel to the front face of the top cover.
Preferably, the front end and the rear end of the notch are respectively embedded with a rotating sleeve on the same straight line, the rear end of the first precision detection roller is assembled on the rotating sleeve on the rear side, and the front end of the first precision detection roller passes through and is assembled on the rotating sleeve on the front side.
Preferably, the second precision detecting roller is provided with a plurality of lightening holes.
Preferably, three screw rods which are parallel to each other are arranged on the annular array on the front end face of the flange plate, which faces the second precision detection roller, the screw rods are also parallel to the axis of the bearing seat, three second jacks are arranged on the annular array on the second precision detection roller, the three screw rods are respectively inserted into the three second jacks, a limit nut is arranged at the front end of each screw rod, the length of each plug rod is smaller than that of each screw rod, external threads for installing the limit nuts are arranged at the front end of each screw rod, and the rear section of each screw rod is an optical axis.
Compared with the prior art, the invention has the beneficial effects that:
1. The top cover of the bearing seat is provided with a notch, a first precision detection roller for correcting whether left, right, front and rear deflection occurs when the bearing is installed is arranged in the notch, the front side of the first precision detection roller is provided with a detection component consisting of a flange plate, a spring pin and a second precision detection roller, an operator places the bearing in an assembly hole of the bearing seat, then slowly tightens the left and right groups of bolts, each time the bolts are tightened, the operator pushes the second precision detection roller backwards once, the second precision detection roller pushes a plunger rod backwards, each time the plunger rod enters a first jack, the rear end of the plunger rod presses a spring pin once, the spring pin locks the flange plate onto the sleeve roller once due to the pressing, the second precision detection roller also presses an oil bag once, the oil bag compresses and discharges oil once, color oil is injected into the drip hole once through an oil pipe, when the second precision detection roller is pushed backwards and rotates, the flange plate is driven to rotate by the second precision detection roller, the sleeve roller is driven to rotate by the flange plate, the first precision detection roller is driven to rotate by the sleeve roller, if the first precision detection roller can rub the outer ring of the bearing to rotate in the assembly hole with the whole bearing carried by the outer ring, the outer circle surface of the first precision detection roller is proved to be completely in fit contact with the outer wall surface of the bearing when rotating for one circle, namely the outer wall surface of the bearing has the opportunity to accept the rolling friction of the first precision detection roller, the bearing does not generate front, back, left and right deflection in the assembly hole at this time, the fastening bolt is slowly rotated, the bearing is rotated at the same time, the bearing outer ring is completely locked in the assembly hole until the bolt is completely locked, and the bearing outer ring is completely fixed, so that the first precision detection roller does not rotate any more, the bearing is proved to be fixed in the bearing seat, and the fixed bearing is not deflected. If the rotation of the first precision detection roller can not rub the bearing to rotate during loosening adjustment, the bearing is proved to be in deflection in the assembly hole at the moment, the outer round surface of the bearing is not completely contacted by the rotating first precision detection roller, the tightness degree of four bolts on the left connecting seat and the right connecting seat needs to be sequentially adjusted, the angle of the bearing in the assembly hole is adjusted, and the second precision detection roller is rotated again until the first precision detection roller can rub the bearing to rotate.
2. In order to improve the distinguishing effect, if the bearing can smoothly complete the whole rotation, the color oil dropped on the bearing can leave a whole circle of track on the outer wall of the bearing, otherwise, if the bearing can not complete the whole rotation, the color oil dropped on the bearing can not leave a whole circle of track, and whether the bearing deflects front, back, left and right in the assembly hole or not is corrected by the two visual detection means, so that the bearing is synchronously corrected due to friction of the outer ring of the bearing by the first precision detection roller when being fixed in the assembly hole, the bearing is ensured not to deflect when being finally fixed in the assembly hole, and finally the assembly hole is thoroughly changed into a round shape due to thorough overlapping surface of the top cover and the base, and the inner ring of the bearing and the hole center of the assembly hole can be ensured on the same axis, namely, the precision of the bearing after being fixed in the bearing seat is improved.
3. The mounting precision is improved when the bearing is mounted in the bearing seat, the other bearing is assembled on the bearing seat on the other side by the same method, then the transmission shaft is mounted on the inner rings of the two bearings, finally the bolts on the left connecting seat and the right connecting seat are locked one by one in a diagonal locking mode, and the outer ring of the bearing is not rotated. After the detection is finished, the second precision detection roller is pulled forwards, the inserted link is separated from the flange plate, meanwhile, the inserted link is separated from the spring pin, at the moment, the spring pin does not lock the flange plate on the sleeve roller any more, the second precision detection roller changes the oil bag into extension from compression to lengthening due to forward reset motion, the oil nozzle is utilized to supplement color oil into the oil bag, at the same time, the flange plate is not locked on the sleeve roller due to the spring pin, therefore, the second precision detection roller can be free on the sleeve roller, the second precision detection roller can completely rotate on the sleeve roller, at the moment, the assembled transmission shaft can be rotated independently, whether the outer round surface of the transmission shaft can be in full contact with the outer round surface of the second precision detection roller when the transmission shaft rotates one round, if the transmission shaft can not completely drive the second precision detection roller to rotate, the transmission shaft is proved to be deflected between two bearings, and at the moment, the second precision detection roller after forward reset has the detection function of detecting whether the transmission shaft is eccentric or not, and the installation precision of the transmission shaft can be detected when the transmission shaft is assembled.
The second precision detection roller not only can drive the sleeve roller for enabling the flange plate to drive the first precision detection roller to rotate by the first sleeve roller, the operation is more labor-saving, but also can compress the oil bag to provide color oil for the outer ring of the bearing when the second precision detection roller moves forwards, and has visual detection effect, and the second precision detection roller can correct whether the transmission is eccentric or not after the bearing is detected completely and is retracted.
Drawings
Fig. 1 is a schematic structural diagram of a high-precision bearing seat according to an embodiment of the present invention when in use;
FIG. 2 is a schematic view of a high precision bearing seat according to an embodiment of the present invention from another view angle of FIG. 1;
Fig. 3 is a schematic view of a high-precision bearing seat according to an embodiment of the present invention when a transparent buckle cover is installed under another view angle led out from fig. 2;
FIG. 4 is a schematic side plan view of a high precision bearing seat according to an embodiment of the present invention, which is drawn from FIG. 1;
fig. 5 is an enlarged schematic view of a portion a of the high-precision bearing seat according to the embodiment of the present invention, which is led out from fig. 3;
fig. 6 is an enlarged schematic view of a portion B of the high-precision bearing seat according to the embodiment of the present invention, which is led out from fig. 4.
1, A base, 2, a top cover, 3, a connecting seat, 4, a notch, 5, a precision self-testing mechanism, 6, a drop hole, 7, an oil bag, 8, a first precision detection roller, 9, a sleeve roller, 10, a flange plate, 11, a spring pin, 12, a second precision detection roller, 13, a plunger, 14, a first jack, 15, an oil duct, 16, a deep groove, 17, a buckle closure, 18, a rotating sleeve, 19, a weight reducing hole, 21, a screw, 22, a second jack, 23, a limit nut, 24, an oil pipe, 25, a sliding sleeve, 26, an oil nozzle, 27 and an assembly hole.
Detailed Description
The foregoing and other embodiments and advantages of the invention will be apparent from the following, more complete, description of the invention, taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention.
In one embodiment, as shown in fig. 1-6:
The embodiment provides a high-precision bearing seat, including base 1, the top detachable of base 1 installs top cap 2, the left and right sides both ends of base 1 and top cap 2 respectively are equipped with two sets of connecting seat 3 around, constitute the pilot hole 27 that is used for assembling the bearing between base 1 and the top cap 2, this is the general structure of current bearing seat, before the bearing is assembled to pilot hole 27, loosen the bolt on the connecting seat 3 about, demolish top cap 2 from base 1, perhaps loosen the bolt on the connecting seat 3 about, upwards separate top cap 2, make pilot hole 27 adjust to be greater than the bearing after, put the bearing in pilot hole 27 again, finally lock the bolt on the connecting seat 3 about again respectively, make the bearing fixed. Besides, the invention is provided with a notch 4 on the top cover 2, the inner end of the notch 4 is communicated with the inner wall of the top cover 2 up and down, the top cover 2 is provided with a precision self-testing mechanism 5, the precision self-testing mechanism 5 comprises a first precision testing roller 8 arranged in the notch 4, the axis of the first precision testing roller 8 is parallel to the assembly hole 27, the rolling surface of the first precision testing roller 8 is overlapped with the inner cavity surface of the top cover 2, and after the bearing is assembled into the assembly hole 27 (the bolts on the left connecting seat 3 and the right connecting seat 3 are not locked), the first precision testing roller 8 is rotated, at the moment, the bearing is not completely locked in the assembly hole 27, so that when the first precision testing roller 8 rotates, the bearing is rotated in the assembly hole 27 by friction of the rolling surface of the first precision testing roller 8.
The front end of the first precision detection roller 8 penetrates out of the front side of the top cover 2, the sleeve roller 9 is fixed at the front end of the first precision detection roller 8, the sleeve roller 9 is virtually sleeved and fixed on the front end rotating shaft of the first precision detection roller 8, when the first precision detection roller 8 rotates, the sleeve roller 9 is also rotated, namely the sleeve roller 9 rotates, namely the sleeve roller 9 rotates, the first precision detection roller 8 rotates, the precision self-testing mechanism 5 further comprises a flange plate 10 sleeved on the sleeve roller 9, the flange plate 10 is provided with a sliding sleeve 25 in sliding fit with the sleeve roller 9, a spring pin 11 is installed in the vertical direction of the sliding sleeve 25, the inner end of the spring pin 11 penetrates into the sliding sleeve 25, the spring pin 11 is of the prior art, the specific structure is not repeated, once the outer end of the spring pin 11 is touched, an extrusion effect is generated, the inner end of the spring pin 11 is pressed on the sleeve roller 9, at the moment, the flange plate 10 is equivalent to being connected with the sleeve roller 9 through the spring pin 11, namely the sleeve roller 9, when the sleeve roller 9 rotates, namely the inner end 10 rotates, namely the sleeve roller 9 rotates, namely the inner end 10 rotates, namely the sleeve roller 9 rotates, and the inner end of the spring pin 11 rotates, namely the sleeve roller 9 is not in the vertical direction, and the rotation, namely the inner end of the sleeve roller is separated from the flange plate, and the inner end of the sleeve roller 9 rotates, and the inner end of the inner end is touched.
The precision self-testing mechanism 5 further comprises a second precision testing roller 12 sleeved on the sleeve roller 9, the second precision testing roller 12 is positioned on the front side of the flange plate 10 and the front side of the top cover 2, a inserted link 13 extending horizontally backwards is fixed at the rear end of the second precision testing roller 12, and a first inserting hole 14 on the same straight line with the inserted link 13 and the spring pin 11 is formed in the flange plate 10; the second precision detection roller 12 is pushed backwards, the inserted rod 13 passes through the first insertion hole 14 to be pushed onto the spring pin 11, at the moment, the second precision detection roller 12 is connected with the flange plate 10 under the connection of the inserted rod 13, meanwhile, the rear end of the inserted rod 13 is pressed onto the spring pin 11, the inner end of the spring pin 11 is pushed onto the sleeve roller 9 to lock the flange plate 10 on the sleeve roller 9, the second precision detection roller 12 is connected onto the flange plate 10 through the inserted rod 13, at the moment, the second precision detection roller 12 is rotated, the flange plate 10 drives the sleeve roller 9 to rotate through the inserted rod 13, the sleeve roller 8 is driven to rotate through the sleeve roller 9, at the moment, the second precision detection roller 12 has the function of pushing the inserted rod 13, triggering the spring pin 11 to fix the flange plate 10 on the sleeve roller 9, at the moment, the inserted rod 13 drives the flange plate 10 to rotate through the sleeve roller 9, the sleeve roller 9 is driven by the flange plate 10, the sleeve roller 9 is driven by the sleeve roller 9 to rotate, the sleeve roller 9 drives the first precision detection roller 8 to rotate through the sleeve roller 9, and the first precision detection roller 8 is driven by the sleeve roller 8 to rotate, whether the shaft center 27 is rotatably driven by the shaft center 27 is rotatably, and the first precision detection roller is mounted in the bearing hole 27 or not, and the bearing hole can be assembled accurately or not is assembled.
The precision self-testing mechanism 5 further comprises an oil bag 7 sleeved on the sleeve roller 9, one end of the oil bag 7 is connected to the flange plate 10, the other end of the oil bag 7 is connected to the second precision testing roller 12, the top cover 2 is provided with a drip hole 6, an oil pipe 24 is connected between the drip hole 6 and the oil bag 7, color oil is filled in the oil bag 7, the inner end of the drip hole 6 penetrates through the inner wall of the top cover 2, the oil bag 7 is extruded when the second precision testing roller 12 moves backwards, the color oil in the oil bag 7 enters the drip hole 6 through the oil pipe 24, and the inner end of the drip hole 6 is dripped on a bearing.
The specific working principle is as follows: the operator loosens the bolts on the left and right connecting seats 3, releases the top cover 2 upwards from the base 1, enlarges the size of the assembly hole 27 (the assembly hole 27 is elliptical at this time), installs the bearing in the assembly hole 27 from the front side or the rear side of the bearing seat, recloses the top cover 2 on the base 1, sequentially adjusts and locks the bolts on the left and right connecting seats 3, pushes the second precision detection roller 12 backwards once every time the bolts are tightly regulated, pushes the inserted rod 13 backwards once by the second precision detection roller 12, pushes the spring pin 11 once the rear end of the inserted rod 13 once the inserted rod 13 enters the first insertion hole 14, locks the flange plate 10 onto the sleeve roller 9 once due to the extrusion of the spring pin 11, and further pushes the oil bag 7 once after the second precision detection roller 12, the oil bag 7 is compressed to discharge oil once, and color oil is injected into the drip hole 6 once through the oil pipe 24, when the second precision detection roller 12 is pushed backwards and rotates, the flange plate 10 is driven by the second precision detection roller 12, the sleeve roller 9 is driven by the flange plate 10 to rotate, the first precision detection roller 8 is driven by the sleeve roller 9 to rotate, if the first precision detection roller 8 rotates and can rub the outer ring of the bearing to rotate in the assembly hole 27 with the whole bearing by the outer ring, the outer ring surface of the first precision detection roller 8 is proved to be completely contacted with the outer wall surface of the bearing in an anastomotic manner when rotating for one circle, namely, the outer wall surface (the outer ring wall surface) of the bearing has the opportunity to accept the rolling friction of the first precision detection roller 8, and the bearing does not generate before the bearing is arranged in the assembly hole 27 at the moment, The back, left and right skew, four bolts on the fastening left and right connecting seat 3 slowly to simultaneously rotate first precision detection roller 8 friction bearing and rotate always, until four bolts thoroughly lock, the bearing outer lane thoroughly is locked in mounting hole 27, because the bearing outer lane is thoroughly fixed, consequently first precision detection roller 8 no longer rotates, proves that the bearing finishes in the bearing frame internal fixation, and the bearing after fixing does not take place the skew. If the bearing can not synchronously rotate along with the first precision detecting roller 8 for one circle, the bearing is proved to be in deflection in the assembly hole 27 at the moment, the outer circular surface of the bearing is not completely contacted by the rotating first precision detecting roller 8, the tightness degree of four bolts on the left connecting seat 3 and the right connecting seat 3 is required to be sequentially adjusted, the angle of the bearing in the assembly hole 27 is adjusted, the second precision detecting roller 12 is rotated again, the flange plate 10 is driven to rotate again by the second precision detecting roller 12, the sleeve roller 9 is driven to rotate again by the flange plate 10, the first precision detecting roller 8 is driven to rotate again, whether the bearing is rubbed by the first precision detecting roller 8 to complete the whole circle is watched, in order to improve the distinguishing effect, if the bearing can successfully complete the whole circle rotation, the color oil dripped on the bearing can leave a whole circle track on the outer wall of the bearing, otherwise, if the bearing can not complete the whole circle rotation, the color oil dripped on the bearing can not leave a whole circle track, and by the two visual detecting means, whether the bearing happens before the whole circle in the assembly hole 27 is corrected, back, left and right deflection; if the bearing is in a reasonable position within the mounting hole 27 (i.e., front, rear, left, right, left, etc. of the bearing within the mounting hole 27), The right position is not deflected), the first precision detecting roller 8 rotates to friction the bearing outer ring to make the bearing rotate around the whole circle in the assembly hole 27, and the dropped color oil will leave a circle track on the bearing outer ring, meanwhile, the top cover 2 and the base 1 are gradually locked and fixed by the operator in a pairing mode, and the first precision detecting roller 8 is always rubbed on the bearing outer ring to make the bearing rotate in the assembly hole 27, and the top cover 2 is thoroughly fastened on the base 1 by the four bolts, the bearing outer ring is thoroughly fixed by the top cover 2 and the base 1, namely the bearing is thoroughly fixed in the assembly hole 27, therefore, the bearing is guaranteed not to deflect when the bearing is finally fixed in the assembly hole 27 due to the fact that the outer ring is rubbed and corrected by the first precision detecting roller 8, and finally, the overlapping surface of the top cover 2 and the base 1 is thoroughly overlapped and locked, the hole center of the bearing inner ring and the assembly hole 27 is thoroughly changed into a round shape, and the bearing center of the bearing seat is also guaranteed to be on the same axis, namely the bearing seat is improved after the bearing is fixed inwards.
The mounting accuracy is improved when the bearings are mounted in the bearing seats, the other bearing is assembled to the bearing seat on the other side in the same way (in the mechanical industry, one bearing is arranged at each end of the same transmission shaft, and in order to fix the two bearings to the mechanism, one bearing seat is mounted on each bearing), then the transmission shaft is mounted on the inner rings of the two bearings, finally, bolts on the left connecting seat and the right connecting seat 3 are locked one by one in a diagonal locking mode, and the outer rings of the bearings are not rotated any more. After the detection, the second precision detection roller 12 is pulled forward, the inserted link 13 is separated from the flange plate 10, and meanwhile, the inserted link 13 is separated from the spring pin 11, at the moment, the spring pin 11 does not lock the flange plate 10 on the sleeve roller 9 any more, the second precision detection roller 12 changes the oil bag 7 into the extension from the compression to the extension due to the forward reset motion, the oil nozzle 26 is utilized to supplement color oil into the oil bag 7, at the same time, the flange plate 10 is not locked on the sleeve roller 9 due to the spring pin 11, so that the second precision detection roller 12 can be free on the sleeve roller 9, the second precision detection roller 12 can completely rotate on the sleeve roller 9 independently, at the moment, the transmission shaft can rotate independently for one circle, whether the outer circular surface of the transmission shaft can be fully contacted with the outer circular surface of the second precision detection roller 12 or not, and whether the second precision detection roller 12 can be driven to rotate independently or not can be driven, and if at the moment, the second precision detection roller 12 can synchronously rotate under the rotation friction of the transmission shaft, the transmission shaft is corrected to be installed between two bearings.
In this embodiment, the second precision detecting roller 12 is not only for making the flange plate 10 drive the sleeve roller 9, and when the first precision detecting roller 8 is driven to rotate by the first sleeve roller 9, the operation is more labor-saving, but also the second precision detecting roller 12 can compress the oil bag 7 to provide color oil for the outer ring of the bearing when moving forward, and is used for detecting whether the bearing can be driven by the first precision detecting roller 8 to complete the whole rotation when the first precision detecting roller 8 rotates, and the precision detection is completed after the bearing is installed in the bearing seat. And the color oil, rotation and precision detection are synchronous, so that the operation is convenient.
The inner wall surface of top cap 2 is the arc, has offered an oil duct 15 along the middle part of the arc inner wall of top cap 2, and the inner of drip hole 6 link up oil duct 15, and the both ends of oil duct 15 reach the both sides of notch 4 respectively along the arc inner wall of top cap 2. The color oil from the oil bag 7 falls into the oil duct 15 through the drip hole 6, and after being limited by the oil duct 15, the color oil ensures that a regular oil trace can be left when the bearing outer ring rotates. If the oil trace left on the outer ring of the bearing is regular and is a complete circle, the accuracy of the bearing when installed in the assembly hole 27 is qualified.
Along the circumferential direction of the first accuracy detecting roller 8, deep grooves 16 are formed, the deep grooves 16 are located on the oil outlet path of the oil duct 15, and the bottoms of the deep grooves 16 are higher than the oil duct 15. The first precision detection roller 8 rubs the bearing outer ring by using a rolling surface (an outer circular surface), and when the bearing rotates with the whole bearing, the bearing outer ring is rubbed by using the areas on two sides of the deep groove 16 as effective rolling surfaces, and the bearing rotates with the whole bearing, so that the color oil track dropped on the surface of the bearing outer ring can avoid the deep groove 16 of the first precision detection roller 8, and the first precision detection roller 8 is prevented from trowelling the track or rubbing cleanly, thereby influencing the observation effect.
The notch 4 is provided with a buckle cover 17, the buckle cover 17 is a transparent cover, the buckle cover 17 is used for covering dust, the dust is prevented from passing through the notch 4 and entering the oil duct 15, and one end of the buckle cover 17 is hinged on one side of the notch 4.
The front end and the rear end of the notch 4 are respectively embedded with a rotating sleeve 18 on the same straight line, the rear end of the first precision detection roller 8 is assembled on the rotating sleeve 18 on the rear side, the front end of the first precision detection roller 8 penetrates through and is assembled on the rotating sleeve 18 on the front side, rotating parts are formed at the front end and the rear end of the first precision detection roller 8, and the rotating effect is improved.
The second precision detecting roller 12 is provided with a plurality of lightening holes 19.
In another embodiment, three screw rods 21 parallel to each other are annularly arranged on the front end face of the flange plate 10 facing the second precision detecting roller 12, the screw rods 21 are also parallel to the axis of the bearing seat, three second insertion holes 22 are annularly arranged on the second precision detecting roller 12, the three screw rods 21 are respectively inserted into the three second insertion holes 22, a limit nut 23 is arranged at the front end of each screw rod 21, the length of the inserting rod 13 is smaller than that of the screw rod 21, external threads for installing the limit nuts 23 are formed at the front end of the screw rod 21, and the rear section of the screw rod 21 is an optical axis. The three screws 21 are inserted on the second precision detecting roller 12 through the second insertion holes 22, so that the second precision detecting roller 12 can use the three screws 21 as positioning guide in the front-back sliding process besides the positioning guide in the front-back sliding process of the middle position sliding on the sleeve roller 9, and meanwhile, the second precision detecting roller 12 is ensured to be parallel to the front side of the bearing seat.
It should be further noted that the oil nozzle 26 is also referred to as an oil can, the bottom of the oil can is connected to the oil bag 7 through a pipe, the pipe is provided with a one-way valve, the oil can be discharged once every time the oil bag 7 is compressed, the one-way valve can be opened once every time the oil bag 7 is stretched and reset, and the oil nozzle 26 can supplement color oil to the oil bag 7 once. The oil bag 7 adopts the rubber bellows, and the inside filled steel wire can be understood as the spring that distributes along the ripple trend, has improved the intensity of oil bag 7, when second precision detection roller 12 resets forward, also can be convenient for the quick recovery of oil bag 7 to elongate.
It should be further noted that, when the plunger 13 is pushed onto the inclined surface, the top end of the spring pin 11 (the top end of the inner plunger) pushes the plunger of the spring pin 11 onto the sleeve roller 9, and other structures of the spring pin 11 are not changed, and the existing locking principle of the spring pin 11 is not affected.
The above orientation is not intended to represent a specific orientation of each component in the present embodiment, but the present embodiment is merely for convenience of description of the embodiments, and is set by referring to the orientation in the drawings, and it is essential that the specific orientation of each component is described in terms of its actual installation and actual use and orientation that are habitual to those skilled in the art, and this is described in detail.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the foregoing is only illustrative of the present invention and is not intended to limit the scope of the present invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.