CN219112651U - Automatic punching die for conical bearing retainer - Google Patents

Abstract

The utility model discloses an automatic punching die for a conical bearing retainer, which comprises an impact female die, an impact male die, a sliding mechanism and a driving mechanism. The impact female die is inwards recessed to form an arc-shaped bearing surface of the bearing retainer, and an impact hole is formed in the middle of the arc-shaped bearing surface; the impact male die is fixed to the stamping mechanism, is positioned right above the impact hole and can be inserted into the impact hole; the sliding mechanism is arranged between the impact male die and the impact female die, is mounted on the sliding platform and can do reciprocating linear motion towards the impact female die in the horizontal direction; the driving mechanism is connected to the sliding mechanism in a floating mode and floats up and down in the vertical direction relative to the sliding mechanism, the driving mechanism comprises a positioning disc used for fixing the retainer, a ratchet wheel connected with the positioning disc and a pawl matched with the ratchet wheel, the driving mechanism is obliquely arranged so that the retainer mounted to the driving mechanism is inclined relative to the impact male die, and the bottommost part of the retainer is flush with the impact female die to improve punching quality of the retainer.

Description

Automatic punching die for conical bearing retainer

Technical Field

The utility model belongs to the technical field of tapered roller bearings, and particularly relates to an automatic punching die for a tapered roller bearing retainer.

Background

The tapered roller bearing belongs to a split bearing, the inner ring and the outer ring of the bearing are both provided with tapered raceways, the retainer is a bearing part which wraps all or part of rolling bodies and moves along with the rolling bodies, and the retainer is required to be punched during processing so as to be convenient for placing the rolling bodies.

When the bearing retainer is punched, the cross section of the punched retainer is divided into a bright band and a tearing band, wherein the bright band is arranged on the upper surface, and the tearing band is arranged on the lower surface; all the existing punching machines are divided into an outer punching machine and an inner punching machine, wherein when the outer punching machine is adopted, the punched retainer bright band is arranged outside, and when the inner punching machine is adopted, the punched retainer bright band is arranged inside; when pressing the slope, if the pressing slope is on the bright band, the smoothness of the pressing slope is good, and if the pressing slope is on the tearing band, the smoothness of the pressing slope is poor. After the bearing is assembled, the rolling bodies are contacted with the pressing slope surface of the retainer, and the rolling bodies are contacted with the inner side of the retainer, so that the quality is more stable during inner punching.

In the prior art, when an inner punching machine is adopted to punch the retainer, because a gap for the retainer to rotate is formed between the retainer and the impact female die, when the impact male die impacts the retainer, the retainer and the positioning disc are easily connected unstably to generate dislocation, so that the error of the window hole of the retainer is increased, and the punching quality of the retainer is also influenced.

Disclosure of Invention

Aiming at the defects, the utility model provides an automatic punching die for a conical bearing retainer, which is used for solving the problem that the retainer is misplaced due to unstable connection between the retainer and a positioning disk.

Through floating the actuating mechanism to be connected to slide mechanism, make actuating mechanism can relative slide mechanism float from top to bottom in the vertical direction, the retainer has the floating distance in the vertical direction promptly with the positioning disk to have the rotation clearance when making the retainer autorotation with strike between the die, the retainer bottom with strike the die butt when punching a hole to the retainer, avoid the retainer atress big and lead to the unstable phenomenon of connection to appear between the positioning disk, reduce the bisection error of retainer window hole, and then promote the quality of punching a hole to the retainer.

The utility model is realized by the following technical scheme:

an automatic punching die for a conical bearing retainer comprises an impact female die, an impact male die, a sliding mechanism and a driving mechanism. The impact female die is inwards recessed to form an arc-shaped bearing surface of the bearing retainer, and an impact hole is formed in the middle of the arc-shaped bearing surface; the impact male die is fixed to the stamping mechanism, is positioned right above the impact hole and can be inserted into the impact hole; the sliding mechanism is arranged between the impact male die and the impact female die, is mounted on the sliding platform and can do reciprocating linear motion towards the impact female die in the horizontal direction; the driving mechanism is connected to the sliding mechanism in a floating mode and floats up and down in the vertical direction relative to the sliding mechanism, the driving mechanism comprises a positioning disc for fixing the retainer, a ratchet wheel connected with the positioning disc and a pawl matched with the ratchet wheel, the driving mechanism is obliquely arranged to enable the retainer mounted to the driving mechanism to be inclined relative to the impact male die, the bottommost part of the retainer is flush with the impact female die, so that the aliquotation error of window holes of the retainer caused by rotation of the retainer is reduced, and the punching quality of the retainer is improved.

Further, the holder attached to the driving mechanism is rotatable with respect to the driving mechanism, the distance between the holder in the rotated state and the arc-shaped bearing surface is L1, and the distance by which the driving mechanism floats up and down with respect to the sliding mechanism is L2, l1=l2. The retainer is separated from the arc bearing surface during rotation, and is abutted with the arc bearing surface during stamping.

Further, the driving mechanism further comprises a control rod connected with the pawl, the end part of the control rod is connected to the top of the sliding mechanism through a tension spring, the tension spring pulls the control rod to enable the control rod to limit the ratchet wheel to rotate through the pawl, and a compression rod for pressing the control rod is arranged on the side face of the stamping mechanism. The stamping machine presses the control rod through the pressing rod, so that the ratchet wheel drives the retainer to equally rotate.

Further, a sliding groove is formed in the side face of the stamping mechanism, a fixing frame is fixed in the sliding groove and is connected with a sliding frame in a sliding mode, a spring is connected between the fixing frame and the sliding frame, and a pressing rod is fixed to the bottom of the sliding frame. The compression bar can move up and down in the pressing area.

Further, the stamping mechanism can drive the impact male die to reciprocate in the vertical direction, the impact male die protrudes out of the stamping mechanism, the impact male die performs punching operation on the retainer in the retainer, the reciprocating travel of the impact male die is smaller than the minimum inner diameter of the retainer, and the impact male die is prevented from colliding with a non-punching area of the retainer.

Further, one side of the impact female die, which is close to the driving mechanism, is provided with an anti-collision slope, so that the retainer and the positioning disc are prevented from colliding to the impact female die.

Further, the ratchet has n spacing teeth, n apertures being formed corresponding to the impacting punch impact retainer. The adjustment of the aperture position of the retainer is achieved by replacing the ratchet.

Further, an elastic piece is arranged at the joint of the driving mechanism and the sliding mechanism, and the elastic piece can enable the driving mechanism to float to the uppermost side relative to the sliding mechanism, so that the rotation of the retainer is prevented from being influenced by the abutting of the retainer and the arc bearing surface.

Further, the automatic punching die further comprises a control device, wherein the control device is electrically connected with the punching mechanism, the driving mechanism and the sliding mechanism, so that the integral control of the punching mechanism, the driving mechanism and the sliding mechanism is realized.

Drawings

FIG. 1 is a schematic view illustrating the connection of an exemplary embodiment of a removal slide mechanism of an automatic pierce die for a conical bearing holder according to the present utility model;

FIG. 2 is a schematic view for illustrating a part of FIG. 1 at A;

FIG. 3 is a side view illustrating an exemplary embodiment of the removal slide mechanism of the present utility model;

FIG. 4 is a schematic view illustrating an exemplary embodiment of an automatic punching die for a conical bearing retainer according to the present utility model;

FIG. 5 is a front view of an exemplary embodiment of an automatic pierce die for a conical bearing retainer according to the present utility model;

fig. 6 is a schematic diagram illustrating the construction of an exemplary embodiment of the removal slide mechanism and drive mechanism of the present utility model.

Reference numerals:

1. impact the female die; 11. an arcuate bearing surface; 12. an impingement hole; 13. an anti-collision slope; 2. impact the male die; 3. a sliding mechanism; 4. a driving mechanism; 41. a positioning plate; 42. a ratchet wheel; 421. limit teeth; 43. a control lever; 44. a tension spring; 5. a retainer; 51. a window hole; 6. a punching mechanism; 61. a compression bar; 62. a chute; 63. a fixing frame; 64. a carriage; 65. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiments of the present utility model, terms such as left, right, up, down, front, and back are merely relative terms or references to a normal use state of a product, i.e. a traveling direction of the product, and should not be construed as limiting.

In addition, the dynamic terms such as "relative movement" in the embodiments of the present utility model include not only a change in position but also a movement in which a state is changed without a relative change in position such as rotation or rolling.

Finally, it is noted that when an element is referred to as being "on" or "disposed on" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

An automatic punching die for a conical bearing retainer as shown in fig. 1 to 6 comprises an impact female die 1, an impact male die 2, a sliding mechanism 3 and a driving mechanism 4. The impact female die 1 is inwards sunken to form an arc-shaped bearing surface 11 for bearing the retainer 5, and an impact hole 12 is formed in the middle of the arc-shaped bearing surface 11; the impact male die 2 is fixed to the punching mechanism 6, and the impact male die 2 is positioned right above the impact hole 12 and can be inserted into the impact hole 12; the sliding mechanism 3 is positioned between the impact male die 2 and the impact female die 1, and the sliding mechanism 3 is mounted on the sliding platform and can do reciprocating linear motion towards the impact female die 1 in the horizontal direction; the driving mechanism 4 is floatingly connected to the sliding mechanism 3 and floats up and down in the vertical direction relative to the sliding mechanism 3, the driving mechanism 4 comprises a positioning disk 41 for fixing the retainer 5, a ratchet wheel 42 connected with the positioning disk 41 and a pawl matched with the ratchet wheel 42, the driving mechanism 4 is obliquely arranged so that the retainer 5 mounted to the driving mechanism 4 is inclined relative to the impact male die 2, the bottommost part of the retainer 5 is flush with the impact female die 1, so that the halving error of the window holes 51 of the retainer 5 caused by rotation of the retainer 5 is reduced, and the punching quality of the retainer 5 is improved.

In one embodiment, first, the retainer 5 is mounted and fixed to the positioning plate 41 of the drive mechanism 4. Then, the sliding mechanism 3 drives the driving mechanism 4 to horizontally move in the direction approaching the impact die 1 until the position to be punched of the retainer 5 is located right above the impact hole 12. The punching mechanism 6 is started to enable the impact male die 2 to move downwards, the impact male die 2 is abutted to the region to be punched of the retainer 5 and then continues to move downwards, the retainer 5 drives the whole driving mechanism 4 to vertically move downwards along the sliding mechanism 3 under the extrusion of the impact male die 2 until the bottom surface of the retainer 5 is abutted to the arc-shaped bearing surface 11, and the impact male die 2 continues to impact the retainer 5 into the impact hole 12, so that the retainer 5 is punched. When the impact punch 2 is inserted into the impact hole 12, the punching mechanism 6 drives the impact punch 2 to move upward, the impact punch 2 is disengaged from the retainer 5, and the retainer 5 forms a punched hole, i.e., a window hole 51. When the impact male die 2 moves upwards, the driving mechanism 4 drives the retainer 5 to move upwards relative to the sliding mechanism 3 under the action of the elastic piece, so that a rotation gap is formed between the retainer 5 and the arc bearing surface 11. The ratchet wheel 42 drives the retainer 5 to rotate once through the positioning disc 41 in an equal proportion so as to facilitate the next punching operation of the retainer 5. The retainer 5 is arranged above the impact die 1 in a floating manner, so that damage such as breakage and the like between the retainer 5 and the positioning disk 41 is effectively prevented, normal equal-division rotation of the retainer 5 can be realized, and punching quality of the retainer 5 is improved.

When the retainer 5 is positioned directly above the punch die 1, the punch 2 is positioned in the concave space of the retainer 5, so that the punch 2 performs punching operation on the retainer 5 from the inside to the outside. Because the retainer 5 is a conical retainer, the retainer 5 is always in an inclined state so that the bottom of the retainer 5 is flush with the impact die 1, and punching of the retainer 5 is facilitated. The arc bearing surface 11 is matched with the outer wall of the retainer 5, so that the retainer 5 can be borne, and stress concentration between the retainer 5 and the bearing surface is avoided.

Preferably, the holder 5 attached to the driving mechanism 4 is rotatable with respect to the driving mechanism 4, the distance between the holder 5 in the rotated state and the arc-shaped bearing surface 11 is L1, and the distance by which the driving mechanism 4 floats up and down with respect to the sliding mechanism 3 is L2, l1=l2. The retainer 5 is separated from the arc-shaped bearing surface 11 when rotating, and the retainer 5 is abutted with the arc-shaped bearing surface 11 when stamping.

As is clear from the above description, the floating distance of the retainer 5 in the vertical direction with respect to the impact die 1 is equal to the distance between the retainer 5 and the arc-shaped bearing surface 11 in the rotated state. The retainer 5 is provided with a rotating state of being separated from the arc-shaped bearing surface 11 and a punching state of being abutted to the arc-shaped bearing surface 11, so that the accuracy of the equal rotation of the retainer 5 and the stability during punching are improved.

Preferably, the driving mechanism 4 further comprises a control lever 43 connected to a pawl, an end of the control lever 43 is connected to the top of the sliding mechanism 3 by a tension spring 44, the tension spring 44 pulls the control lever 43 to make the control lever 43 rotate by the pawl restricting the ratchet 42, and a pressing lever 61 for pressing the control lever 43 is mounted on a side of the pressing mechanism 6. The pressing machine presses the control lever 43 through the pressing lever 61, so that the ratchet 42 drives the retainer 5 to equally rotate.

In one embodiment, when the sliding mechanism 3 drives the driving mechanism 4 to move towards the impact die 1, the pressing rod 61 located on the pressing mechanism 6 is inserted into the area enclosed by the control rod 43, the tension spring 44 and the sliding mechanism 3. The control lever 43 is pulled by the tension spring 44 to cause the pawl connected to the control lever 43 to be engaged into the ratchet 42, inhibiting the rotation of the ratchet 42. When the pressing mechanism 6 moves down, the pressing rod 61 presses the control rod 43 to rotate downwards so that the pawl is separated from the ratchet wheel 42, and the ratchet wheel 42 rotates by a distance of one limiting tooth 421, so that the retainer 5 is equally rotated. I.e. once per reciprocation of the punch mechanism 6, the ratchet 42 drives the retainer 5 to rotate equally once.

Preferably, a sliding groove 62 is formed in the side surface of the stamping mechanism 6, a fixing frame 63 is fixed in the sliding groove 62 and is connected with a sliding frame 64 in a sliding manner, a spring 65 is connected between the fixing frame 63 and the sliding frame 64, and a pressing rod 61 is fixed to the bottom of the sliding frame 64. Up and down movement of the pressing lever 61 in the pressing area is achieved.

In one embodiment, when the pressing mechanism 6 moves downward, the sliding frame 64 drives the pressing rod 61 to press the control rod 43 downward, and when the pressing rod 61 presses the control rod 43 to the maximum pressing state of the control rod 43, the retainer 5 completes the equally-divided rotation. Then, the pressing mechanism 6 continues to move downward, and at this time, since the control lever 43 has been pressed to the maximum pressing state, the carriage 64 moves upward relative to the chute 62 to press the spring 65, preventing the pressing lever 61 from breaking. It should be noted that the sliding distance of the sliding frame 64 relative to the sliding groove 62 is greater than the thickness of the punched portion of the retainer 5.

Preferably, the punching mechanism 6 can drive the impact punch 2 to reciprocate in the vertical direction, the impact punch 2 protrudes out of the punching mechanism 6, the impact punch 2 punches the retainer 5 in the retainer 5, the reciprocating stroke of the impact punch 2 is smaller than the minimum inner diameter of the retainer 5, and the impact punch 2 is prevented from colliding with a non-punching area of the retainer 5.

Preferably, the side of the impact die 1 close to the driving mechanism 4 is provided with an anti-collision slope 13, avoiding that the retainer 5 and the positioning disk 41 collide with the impact die 1.

As is clear from the above description, the driving mechanism 4 and the retainer 5 fixed on the driving mechanism 4 are both arranged obliquely, when the sliding mechanism 3 drives the driving mechanism 4 to move horizontally towards the impact die 1, the retainer 5 and the positioning disk 41 are easy to collide with the impact die 1, and the side of the impact die 1, which is close to the driving mechanism 4, is provided with the anti-collision slope 13, so that the retainer 5 and the positioning disk 41 in an oblique state are effectively prevented from colliding with the impact die 1 when moving horizontally.

Preferably, the ratchet wheel 42 has n limiting teeth 421, n windows 51 being formed in correspondence with the impact holders 5 of the impact punches 2. The adjustment of the position of the aperture 51 of the holder 5 is achieved by replacing the ratchet 42.

Preferably, an elastic member is disposed at the connection between the driving mechanism 4 and the sliding mechanism 3, and the elastic member can enable the driving mechanism 4 to float to the uppermost side relative to the sliding mechanism 3, so as to avoid the rotation of the retainer 5 affected by the abutment of the retainer 5 with the arc-shaped bearing surface 11.

As is apparent from the above description, the elastic member is capable of floating the driving mechanism 4 upward relative to the sliding mechanism 3, floating the retainer 5 abutting to the arc-shaped bearing surface 11 upward, and the floating distance is the distance between the retainer 5 in a rotated state and the arc-shaped bearing surface 11.

Preferably, the automatic punching die further comprises a control device, and the control device is electrically connected with the punching mechanism 6, the driving mechanism 4 and the sliding mechanism 3, so that overall control of the punching mechanism 6, the driving mechanism 4 and the sliding mechanism 3 is realized.

It should be noted that, the system for controlling the operation of the stamping mechanism 6, the driving mechanism 4 and the sliding mechanism 3 by the control device belongs to the conventional technology, and the power supply, the circuit structure and the signal control system for controlling the operation of the control device in the automatic punching die are all conventional technical means, and do not belong to the protection scope of the present utility model, so that the description is omitted.

When the automatic punching die for the conical bearing retainer is adopted, the driving mechanism 4 is connected to the sliding mechanism 3 in a floating manner, so that the driving mechanism 4 can float up and down relative to the sliding mechanism 3 in the vertical direction, namely, the retainer 5 and the positioning disc 41 have a floating distance in the vertical direction, a rotating gap is formed between the retainer 5 and the impact female die 1 when the retainer 5 rotates, the bottom of the retainer 5 abuts against the impact female die 1 when the retainer 5 is punched, the phenomenon of unstable connection between the retainer 5 and the positioning disc 41 caused by large stress of the retainer 5 is avoided, the halving error of window holes 51 of the retainer 5 is reduced, and the punching quality of the retainer 5 is improved.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (9)

1. An automatic punching die for a conical bearing retainer, which is characterized by comprising:

the impact female die is inwards recessed to form an arc-shaped bearing surface of the bearing retainer, and an impact hole is formed in the middle of the arc-shaped bearing surface;

an impact punch fixed to the punching mechanism, the impact punch being located directly above the impact hole and being insertable into the impact hole;

the sliding mechanism is positioned between the impact male die and the impact female die, is mounted on the sliding platform and can do reciprocating linear motion towards the impact female die in the horizontal direction;

the driving mechanism is connected to the sliding mechanism in a floating mode and floats up and down in the vertical direction relative to the sliding mechanism, the driving mechanism comprises a positioning disc used for fixing the retainer, a ratchet wheel connected with the positioning disc and a pawl matched with the ratchet wheel, the driving mechanism is obliquely arranged so that the retainer mounted to the driving mechanism is inclined relative to the impact male die, and the bottommost part of the retainer is flush with the impact female die.

2. An automatic punching die for a conical bearing holder according to claim 1, characterized in that the holder mounted to the driving mechanism is rotatable with respect to the driving mechanism, a distance between the holder in a rotated state and the arc-shaped bearing surface is L1, and a distance by which the driving mechanism floats up and down with respect to the sliding mechanism is L2, l1=l2.

3. The automatic punching die for conical bearing retainers according to claim 1, wherein the driving mechanism further comprises a control rod connected to the pawl, an end of the control rod is connected to a top of the sliding mechanism by a tension spring, the tension spring pulls the control rod to limit the rotation of the ratchet wheel by the pawl, and a pressing rod for pressing the control rod is installed on a side surface of the punching mechanism.

4. The automatic punching die for the conical bearing retainer according to claim 3, wherein a sliding groove is formed in the side face of the punching mechanism, a fixing frame is fixed in the sliding groove and is connected with a sliding frame in a sliding mode, a spring is connected between the fixing frame and the sliding frame, and the pressing rod is fixed to the bottom of the sliding frame.

5. An automatic punching die for a conical bearing retainer according to claim 1, wherein the punching mechanism can drive the impact punch to reciprocate in a vertical direction, the impact punch protrudes from the punching mechanism, the impact punch performs punching operation on the retainer inside the retainer, and the reciprocating stroke of the impact punch is smaller than the minimum inner diameter of the retainer.

6. An automatic punching die for a conical bearing retainer according to claim 1, wherein an anti-collision slope is arranged on one side of the impact female die, which is close to the driving mechanism.

7. An automatic punching die for a conical bearing retainer according to claim 1, wherein the ratchet has n limit teeth, and n windows are formed in correspondence to the impact punch impacting the retainer.

8. An automatic punching die for a conical bearing retainer according to claim 1, wherein an elastic member is provided at a joint of the driving mechanism and the sliding mechanism, and the elastic member enables the driving mechanism to float to the uppermost side with respect to the sliding mechanism.

9. An automatic punching die for a conical bearing retainer according to claim 1, further comprising a control device electrically connected to the punching mechanism, the driving mechanism and the sliding mechanism.

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