CN113337926A - Rotary tooth punching machine capable of adjusting gap between matched bearings in box - Google Patents

Abstract

The invention relates to a rotary tooth punching machine capable of adjusting the clearance between matched bearings in a box, which effectively solves the problems that the existing clearance adjustment process for a main shaft box bearing of the rotary tooth punching machine is complicated and complicated, and the mounting precision of the bearing is reduced easily due to repeated assembly and disassembly; the technical scheme comprises the following steps: through set up the window lid on the box and establish the location with the round nut of lock ring formula round nut spanner in the box in the removal, then through the combination formula elasticity screens type drift afterburning spanner collaborative work who uses with it and then realize under the condition of not dismantling the box main shaft, accomplish the adjustment to the bearing clearance, for traditional adjustment mode reduced work load greatly and still avoided dismantling the box many times and lose the assembly precision of headstock structure and bearing.

Description

Rotary tooth punching machine capable of adjusting gap between matched bearings in box

Technical Field

The invention belongs to the technical field of bearing clearance adjustment, and particularly relates to a rotary tooth punching machine capable of adjusting a counter bearing clearance in a box.

Background

The metal rack for the carding machine is completed on a punching and quenching coil production line, the length of a large roller of the carding machine is required to be nearly ten thousand meters when the metal rack is fully wrapped, the product can be completed on the production line usually within 4-8 hours, the product is required to be continuously completed without stopping to keep the consistency of the full length of the product, once the production is suspended midway, the annealing and quenching abnormity of a section of the product at the suspended part is formed, such as a hard section with insufficient annealing, a soft section with insufficient quenching or a hard section with excessive quenching, and the stopping maintenance or overhaul of the production line midway is generally caused by rotating a punching station;

the running precision and reliability of the punching station directly restrict whether the whole production line can run continuously and efficiently, and the punching station is a key station of the whole production line. The operation precision and reliability of the punching station are determined by the working state of the punching die, except the grinding quality of the punching die, the key points are the jumping of an upper punching cutter and a punch, the punching machine which is just assembled and adjusted almost has no play to a matched bearing, the jumping is small, if the punching machine does not generate heat, the punching machine is in a good state, a small gap can be kept when an upper die and a lower die match the dies, the punching die is durable, after a plurality of working days, the bearing abrasion play is gradually increased, the jumping is increased along with the increase of the bearing, the gap is gradually increased when the dies match the dies, the durability of the punching die is reduced, the gap of the matched bearing is adjusted, a main shaft needs to be disassembled from a box, the structure of the punching machine is complex, the assembly precision is high, the repeated disassembly not only wastes time and labor, but also influences the cutting rate and damages the equipment precision;

in view of the above, we provide a rotary punching machine capable of adjusting the clearance of a counter bearing in a box to solve the above problems.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides a rotary tooth punching machine capable of adjusting the clearance between the paired bearings in a box, which is characterized in that a window cover is arranged on a box body, a lock ring type round nut wrench arranged in the box body is moved to position a round nut, and then a combined elastic clamping type punch force application wrench matched with the round nut wrench is cooperated to work so as to complete the adjustment of the clearance between the paired bearings under the condition of not disassembling a main shaft of the box body, thereby greatly reducing the workload compared with the traditional adjustment mode and avoiding the condition that the box body is disassembled for many times to lose the installation precision of the bearings.

The rotary tooth punching machine capable of adjusting the clearance between the paired bearings in the box comprises a box body and a fixed bearing in the box body, wherein a main shaft is installed in the paired bearings, a punch head disc is installed at the front end of the main shaft, the rotary tooth punching machine is characterized in that a circular nut matched with the main shaft is arranged in the box body, a stop washer matched with the circular nut is fixed on the upper portion of the main shaft in a sleeved mode, a window cover is detachably installed on the box body, a lock ring type circular nut wrench matched with the main shaft body is arranged below the window cover in the box body, a plurality of sliding keys are arranged in the lock ring type circular nut wrench in a surrounding mode at intervals, and a positioning device used for positioning the lock ring type circular nut wrench is arranged on the box body.

Preferably, a key groove is formed in the spindle along the axial direction of the spindle, a positioning key matched with the key groove is arranged on the stop washer, and a plurality of sliding grooves matched with the sliding keys are formed in the outer circular surface of the round nut along the axial direction of the round nut.

Preferably, still include with the supporting combination formula elasticity screens type drift afterburning spanner that uses of lock ring formula round nut spanner, combination formula elasticity screens type drift afterburning spanner includes that the ring seat and the ring seat axial both sides an organic whole that cooperate with the drift dish are equipped with radial extension's socket hole, be equipped with the snap ring in first ring groove and the ring groove with the axle center in the socket hole, the jack seat interpolation is equipped with on being equipped with the stress application pole and the stress application pole with snap ring matched with second ring groove.

Preferably, the end of the stress application rod, which is far away from the second annular clamping groove, is provided with a reticulate pattern, and the end of the stress application rod, which is close to the second annular clamping groove, is provided with a smooth surface.

Preferably, the positioning device comprises a positioning screw which is arranged on the side wall of the box body and corresponds to the window cover, and a positioning hole matched with the positioning screw is formed in the lock ring type round nut wrench.

A method for in-box adjusting counter-bearing clearance, comprising the steps of:

s1: detaching the die cutter and opening the window cover;

s2: prying a stop lug of the stop washer from a sliding groove on the round nut, and then unscrewing a positioning screw;

s3: moving the lock ring type round nut wrench from a standby position to a working position and enabling a sliding key on the lock ring type round nut wrench to be clamped in a sliding groove on the round nut;

s4: installing the combined elastic clamping type punch stressing wrench on the punch disc

S5: the adjustment of the clearance of the matched bearing can be realized by slightly rotating and moving the punch plate under the synergistic action of the lock ring type round nut wrench and the combined elastic clamping type punch stressing wrench;

s6: after the adjustment is finished, the lock ring type round nut wrench is moved to the standby position from the working position again, and then the lock ring type round nut wrench is fixed and positioned again through the positioning screw;

s7: and (5) installing a window cover, and detaching the combined elastic clamping type punch stressing wrench.

The beneficial effects of the technical scheme are as follows:

(1) the positioning of the round nut is realized by arranging a window cover on the original box body and moving a lock ring type round nut wrench arranged in the box body, and then the adjustment of the clearance of the bearing is completed under the condition of not disassembling a main shaft of the box body by the cooperative work of a combined elastic clamping type punch force application wrench matched with the window cover, so that the workload of equipment maintenance is greatly reduced compared with the traditional adjustment mode, and the condition that the assembling precision of a main shaft box body structure body and the bearing is lost due to repeated disassembly of the box body is also avoided;

(2) through not dismantling the box and directly carrying out clearance adjustment to the counter bearing in this scheme, reduced maintenance of equipment's work load promptly, also make the towards tooth machine who accomplishes clearance adjustment can drop into the production process of metal rack with faster speed, improved production efficiency.

Drawings

FIG. 1 is a schematic sectional view of the internal structure of the case according to the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the present invention with the locking ring type ring nut wrench positioned;

FIG. 4 is a schematic view of the present invention illustrating the adjustment of the clearance between the bearings of the tooth punching machine;

FIG. 5 is a schematic view of the combined type elastic retaining punch force application wrench of the present invention;

FIG. 6 is a schematic view of the fitting relationship between the locking washer and the round nut according to the present invention;

FIG. 7 is a schematic view of a lock ring type round nut wrench according to the present invention;

FIG. 8 is a schematic view of a round nut according to the present invention;

FIG. 9 is a schematic view of the mounting relationship of the lock washer and the spindle according to the present invention;

FIG. 10 is a schematic view of a stop washer configuration of the present invention;

FIG. 11 is a schematic view of a cross-hatched portion on the force-applying rod according to the present invention;

FIG. 12 is a schematic view of the structure of the main shaft box with windows according to the present invention.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be described in detail with reference to the accompanying drawings, in which fig. 1 to 12 are incorporated.

Embodiment 1, a rotary tooth punching machine capable of adjusting a clearance between a pair of bearings in a box, as shown in fig. 1, comprises a box 10, wherein the pair of bearings 8 (7210 AC/P4DBA with high precision grade) are fixedly arranged in the box 10 and are back-to-back matched with the bearings 8 and are assembled in a back-to-back manner, when the pair of bearings are put into use again after maintenance in one service cycle, a purple copper foil gasket is required to be added between two outer rings, the thickness of the gasket is 0.05mm, a main shaft 4 is arranged in the pair of bearings 8, a punch head disc 2 is arranged at the front end of the main shaft 4, the rotary tooth punching machine is characterized in that a round nut 14 matched with the main shaft 4 (the round nut 14 is arranged in a threaded fit with the main shaft 4) is arranged in the box 10, a stop washer 13 matched with the round nut 14 is sleeved on the main shaft 4 (the stop washer 13 realizes the positioning of the round nut 14 relative to the main shaft 4, the round nut 14 is matched with the stop washer 13 to realize the axial positioning of the pair of bearings 8, to avoid axial runout of the counter bearing 8 during operation), as shown in fig. 1, for a spindle 4 box assembly of a rotary punching machine: in the figure, 1 is a punching tool, namely an upper punching die, which can be 1-6, 2 is a punching head disc used for installing the punching tool 1, 3 is a combined elastic clamping type punching head stress application wrench, 4 is a main shaft, 5 is a sealing ring, 6 is a left end oil seal, 7 is a front-left end cover, 5-6-7 are combined to realize the oil mist lubrication sealing of a front-left end main bearing, 8 is a high-precision 7210AC/P4DBA back-to-back matching bearing, 9 is a purple copper foil washer, 10 is a box body, 11 is a front (left) shaft sleeve, 12 is a front (left) oil baffle ring, 7-8-9-12 are combined to realize the outer ring positioning of the front (left) end main bearing, 13 is a stop washer, 14 is a round nut, and B and A are respectively the working position and the standby position of a lock ring type round nut wrench 15;

4-5-8-11-13-14, wherein the window cover 17, the oil mist lubrication interface 18 (one at each of the left end and the right end), the rear oil baffle ring 19, the rear shaft sleeve 20, the D308 bearing 21, the right oil baffle shaft sleeve 22, the rear end cover 23, the right oil seal 24, the oil baffle disc 25 and the right oil baffle disc 19-20-22-23-24-25 are combined to realize the oil mist lubrication sealing of the right end D308 bearing;

in this embodiment, a window cover 17 is detachably installed on the box body 10 (note: the horizontal plane of the installation position of the window cover 17 is not lower than the top generatrix of the outer contour of the box body 10, and is too low to cause the reduction of the strength and rigidity of the box body 10), as shown in fig. 3, a lock ring type round nut wrench 15 matched with the spindle 4 is arranged below the window cover 17 (the spindle 4 penetrates through the lock ring type round nut wrench 15 and is not contacted with the same, the gap between the inner wall of the lock ring type round nut wrench 15 and the outer circumferential surface of the round nut 14 is about 0.5-1mm, the lock ring type round nut wrench 15 is slidably installed in the inner cavity of the box body 10, and the outer wall thereof and the inner cavity of the box body 10 are slidably separated by about 1 mm), as shown in fig. 7, a plurality of sliding keys 16 are arranged on the inner wall of the lock ring type round nut wrench 15, and when the box body 4 of the rotary tooth punching machine is in the working state, the lock ring type round nut wrench 15 is at the position a as shown in fig. 1 (at this time, the lock ring type round nut wrench 15 is not contacted with the spindle 4) and is installed When the positioning device is in a standby positioning state (making it immovable in the box 10), and clearance adjustment needs to be performed on the counter bearing 8 in the box of the rotary tooth punching machine spindle 4, a maintenance person opens the window cover 17 and first releases the locking of the stop washer 13 on the round nut 14, then releases the positioning of the positioning device on the lock ring type round nut 14 and pushes the lock ring type round nut wrench 15 to move in the box 10 in the direction close to the round nut 14 to move to the position B shown in FIG. 1, in the process, the lock ring positioning of the round nut 14 is realized by the matching of a plurality of sliding keys 16 arranged on the inner wall of the lock ring type round nut wrench 15 and the round nut 14, so that the lock ring type round nut cannot be rotated in the box 10, and the acting force [ A1] (i.e. the micro-rotation of the punch disc 2) on the lock ring type round nut wrench 15 along the circumferential direction is added, The intermittent fine adjustment of the paired bearings 8 is realized by matching (note: the outer ring of the paired bearings 8 is fixedly arranged in the box body 10, and the axial adjustment is carried out on the inner ring of the paired bearings 8 in the process);

because the round nut 14 can not rotate under the action of the lock ring type round nut wrench 15, the action force applied to the punch disc 2 along the circumferential direction of the punch disc by an operator further realizes the purpose of driving the inner ring of the counter bearing 8 to move slightly along the axial direction of the main shaft 4, the effect of adjusting the axial clearance of the counter bearing 8 is realized, after the adjustment of the axial clearance of the counter bearing 8 is finished, the operator moves the ring nut 14 wrench from the B position (working position) shown in figure 1 to the a position (standby position) again, then, the locking ring type round nut 14 is positioned again through the positioning device, and the locking of the round nut 14 is realized again through the stop washer 13 (so that the round nut 14 does not move relative to the main shaft 4 in the working process of the main shaft 4 box of the rotary tooth punching machine), and the adjustment of the axial clearance of the matching bearing 8 is completed;

in the embodiment, through innovative design of an original rotary gear punching main shaft box body, the main shaft box body is not required to be disassembled, but a window cover 17 is arranged on the box body 10, when gap adjustment is carried out, only the window cover 17 needs to be opened, then a built-in lock ring type round nut wrench 15 is used for locking a round nut 14, and then acting force along the circumferential direction of the outer circumferential surface of the punch head disc 2 is applied, so that the axial gap of the matched bearing 8 is adjusted, and the gap adjustment of the matched bearing 8 and the recovery of the running precision of the punch head disc 2 become timely, convenient and reliable;

note: as the punch disc 2 is arranged at the left end of the main shaft 4 as shown in the attached drawing 1, the matching bearing 8 is a main positioning bearing, and the right end D308 bearing 21 is an auxiliary positioning bearing, and the outer ring of the auxiliary positioning bearing leaves a sliding space in the box body 10, so that the axial expansion and contraction of the main shaft 4 body in the box body are dissolved.

In embodiment 2, as shown in fig. 9, on the basis of embodiment 1, a key groove 26 is formed in the spindle 4 along the axial direction thereof, and a positioning key 27 engaged with the key groove 26 is provided on the lock washer 13, when the mounting is carried out, firstly, the stop washer 13 is sleeved on the main shaft 4 and the positioning key 27 which is arranged with the stop washer 13 is inserted into the key groove 26 which is arranged on the surface of the main shaft 4, thereby realizing that the stop washer 13 can not rotate relative to the main shaft 4, a plurality of chutes 29 matched with the sliding keys 16 are arranged on the outer circular surface of the round nut 14 at intervals, when the operator moves the ring-type ring nut runner 15 from the standby position (a) to the working position (B) and positions the ring nut 14, namely, a plurality of sliding keys 16 on the inner wall of the lock ring type round nut wrench 15 slide into a sliding groove 29 arranged on the outer circular surface of the round nut 14, so as to realize the locking effect on the round nut 14;

note: in the process that an operator drives the lock ring type round nut wrench 15 to move towards the round nut 14, the operator may need to slightly rotate the punch disc 2 to realize that the sliding grooves 29 on the round nut 14 are matched with the sliding keys 16 on the lock ring type round nut 14 (namely, the positions of the sliding grooves 29 and the sliding keys are matched);

as shown in fig. 10, the outer circumferential surface of the lock washer 13 is provided with a plurality of lock lugs 38, when the lock washer 13 positions the round nut 14, one lock lug 38 must be inserted into the slide slot 29 formed on the outer circumferential surface of the round nut 14, so as to achieve a locking effect between the round nut 14 and the spindle 4.

Embodiment 3, on the basis of embodiment 2, as shown in fig. 4, further includes a combined elastic clamping type punch force application wrench 3 (which is used to apply a force to the punch disc 2 along the circumferential direction thereof and drive the main shaft 4 to rotate slightly) used in cooperation with the lock ring type round nut wrench 15, as shown in fig. 5, the combined elastic clamping type punch force application wrench 3 includes a ring seat 30 (for being sleeved on the punch disc 2) matched with the punch disc 2, and radially extending socket holes 31 are integrally formed on both axial sides of the ring seat 30, a first annular clamping groove 32 is formed in the socket hole 31, an elastic clamping ring 33 is installed in the first annular clamping groove 32, a second annular clamping groove 35 is formed on the outer circumferential surface of the clamping rod 34, and when an operator needs to slightly rotate the punch disc 2, the combined elastic clamping type punch force application wrench 3 is firstly sleeved on the punch disc 2 (note: a suitable angle needs to be selected in this process, as shown in fig. 4, a circular hole matched with the force applying rod 34 is formed in the punch disc 2, when the ring seat 30 is sleeved, the angle of the two force applying rods 34 can be adjusted to be inserted into the circular hole formed in the punch disc 2, and then an operator can drive the punch disc 2 to slightly rotate by applying a certain degree of acting force to the two force applying rods 34 (the process is performed on the premise that the lock ring type round nut wrench 15 locks the round nut 14), so that the axial clearance of the counter bearing 8 is adjusted;

when the combined elastic clamping type punch stressing wrench 3 is not used, the combined elastic clamping type punch stressing wrench can be disassembled, namely, the two stressing rods 34 are disassembled from the ring seat 30, so that the placing space of the combined elastic clamping type punch stressing wrench can be reduced, the elastic clamping ring 33 ensures that the combined elastic clamping type punch stressing wrench can be accurately positioned during assembly, and the double stressing rods 34 ensure the symmetry and balance during stressing.

Embodiment 4, based on embodiment 3, as shown in fig. 11, it is preferable that one end of the force applying rod 34, which is far away from the second annular groove 35, is provided with a cross-hatched portion 36 (to increase frictional resistance) and one end of the force applying rod, which is close to the second annular groove 35, is provided with a smooth surface, so that when an operator applies force through the two force applying rods 34, the operator can be helped to hold the force applying rod 34 more stably.

Embodiment 5, on the basis of embodiment 1, as shown in fig. 3, the positioning device includes a positioning screw 28 installed on a side wall of the box 10 and corresponding to the window cover 17, as shown in fig. 7, a positioning hole 37 matched with the positioning screw 28 is provided on the ring-type ring nut wrench 15, when the ring-type ring nut wrench 15 is in a standby position, i.e., a position a in fig. 1, the positioning screw 28 is inserted into the positioning hole 37 corresponding thereto to achieve a positioning effect on the ring-type ring nut wrench 15, and when it needs to be moved, an operator withdraws the positioning screw 28 from the positioning hole 37 corresponding thereto to release the positioning on the ring-type ring nut wrench 15;

in this embodiment, the positioning screw 28 is installed in a threaded fit with the box 10, and the positioning screw 28 is screwed to achieve the effect of moving (the threaded hole formed in the box 10 is the threaded hole M5).

Embodiment 6, there is provided a method for in-box adjustment of a paired bearing gap, comprising the steps of:

s1: the die cutter 1 is detached and the window cover 17 is opened;

s2: prying the stop lug 38 of the stop washer 13 from the slide slot 29 on the round nut 14 and then unscrewing the set screw 28;

s3: moving the lock ring type round nut wrench 15 from a standby position to a working position and enabling the sliding key 16 on the lock ring type round nut wrench 15 to be clamped in the sliding groove 29 on the round nut 14;

s4: installing a combined elastic clamping type punch stressing wrench 3 on a punch disc 2

S5: the clearance of the counter bearing 8 can be adjusted by slightly rotating the punch disc 2 under the synergistic action of the lock ring type round nut wrench 15 and the combined elastic clamping type punch stressing wrench 3;

s6: after the adjustment is finished, the lock ring type round nut wrench 15 is moved from the working position to the standby position again, and then the lock ring type round nut wrench 15 is fixed and positioned again through the positioning screw 28;

s7: the window cover 17 is installed, and the combined elastic clamping type punch stressing wrench 3 is disassembled.

The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims (6)

1. A rotary tooth punching machine capable of adjusting the clearance of a counter bearing in a box comprises a box body (10), the counter bearing (8) is fixedly arranged in the box body (10), a main shaft (4) is arranged in the matching bearing (8), a punch disc (2) is arranged at the front end of the main shaft (4), it is characterized in that a round nut (14) matched with the main shaft (4) is arranged in the box body (10), a stop washer (13) matched with the round nut (14) is fixedly sleeved on the main shaft (4), a window cover (17) is detachably arranged on the box body (10), a lock ring type round nut wrench (15) matched with the main shaft (4) is arranged below the window cover (17) in the box body (10), a plurality of sliding keys (16) are arranged on the inner circle surface of the lock ring type round nut wrench (15) in a surrounding way at intervals, and a positioning device for positioning the lock ring type round nut wrench (15) is arranged in the box body (10).

2. The rotary tooth punching machine capable of adjusting the clearance between the paired bearings in the box according to claim 1, wherein the main shaft (4) is provided with a key groove (26) along the axial direction thereof, the lock washer (13) is provided with a positioning key (27) engaged with the key groove (26), and the outer circumferential surface of the round nut (14) is provided with a plurality of sliding grooves (29) engaged with the sliding keys (16) along the axial direction thereof.

3. The rotary tooth punching machine capable of adjusting the clearance between the paired bearings in the box according to claim 2, further comprising a combined elastic clamping type punch force application wrench (3) used in cooperation with the lock ring type round nut wrench (15), wherein the combined elastic clamping type punch force application wrench (3) comprises a ring base (30) matched with the punch disc (2), radially extending socket holes (31) are integrally formed in two axial sides of the ring base (30), a first annular clamping groove (32) is formed in the socket holes (31) coaxially, an elastic clamping ring (33) is arranged in the annular clamping groove, a force application rod (34) is inserted into the socket holes, and a second annular clamping groove (35) matched with the elastic clamping ring (33) is formed in the force application rod (34).

4. A rotary tooth punching machine capable of adjusting the clearance between a counter bearing and a counter bearing in a box according to claim 3, wherein the force applying rod (34) is provided with a mesh (36) at the end far away from the second annular clamping groove (35) and is provided with a smooth surface at the end close to the second annular clamping groove (35).

5. A rotary tooth punching machine capable of adjusting the clearance between the paired bearings in a box according to claim 1, wherein the positioning means comprises a positioning screw (28) mounted on the side wall of the box (10) and corresponding to the window cover (17), and the lock ring type round nut wrench (15) is provided with a positioning hole (37) for engaging with the positioning screw (28).

6. A method for adjusting a counter bearing clearance in a tank, comprising the steps of:

s1: detaching the die cutter and opening the window cover;

s2: prying a stop lug of the stop washer from a sliding groove on the round nut, and then unscrewing a positioning screw;

s3: moving the lock ring type round nut wrench from a standby position to a working position and enabling a sliding key on the lock ring type round nut wrench to be clamped in a sliding groove on the round nut;

s4: installing the combined elastic clamping type punch stressing wrench on a punch disc;

s5: the adjustment of the clearance of the matched bearing can be realized by slightly rotating and moving the punch plate under the synergistic action of the lock ring type round nut wrench and the combined elastic clamping type punch stressing wrench;

s6: after the adjustment is finished, the lock ring type round nut wrench is moved to the standby position from the working position again, and then the lock ring type round nut wrench is fixed and positioned again through the positioning screw;

s7: and (5) installing a window cover, and detaching the combined elastic clamping type punch stressing wrench.

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