Automatic blanking device for punch forming of bearing outer ring
By designing an automatic discharge device, the automatic discharge of the outer ring of the bearing is achieved by using the discharge guide rail and the retractor drive device, the problems of uncontrollable discharge and large rotation angle of the discharge rail in the prior art are solved, and the controllability and efficiency of production are improved.
Patent Information
- Application Number
- CN202421218638.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the stamping and forming process of the external ring of the existing bearing, the material deduplication mechanism is triggered when the stamping machine is reset, resulting in uncontrollable drop of finished material, resulting in processing errors and material structure damage. At the same time, the rotation angle of the discharge track is large, which increases the burden on the stamping machine.
An automatic cutting device for stamping and forming bearing outer ring is designed, using a cutting guide rail and a retractor drive device. Automatic cutting of the bearing outer ring is achieved through automatic loading and cutting devices, reducing the rotation range of the cutting track, and ensuring the controllability of the cutting process through light curtain sensors and telescopic cylinders.
It effectively reduces the distance of the bearing outer ring falling during stamping and its impact on finished materials, reduces the wear and collision of the cutting track, and improves the controllability and efficiency of production.
Smart Images
Figure CN222587933U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bearing manufacturing, in particular to an automatic blanking device for stamping and forming a bearing outer ring. Background Art
[0002] The specific production process of bearings: raw materials, inner and outer ring processing, steel ball or roller processing, cage (stamping or solid) processing, bearing assembly, bearing finished product. The traditional ring processing process varies depending on the raw material or blank form. The entire inner and outer ring processing process is: bar or tube material (some bar materials need to be forged and annealed, normalized), turning, heat treatment, grinding, fine lapping or polishing, final inspection of parts, rust prevention, and storage. The outer ring blank of the bearing stamped out of the sheet needs further stamping before it can be Figure 6 The state shown in a is transformed into Figure 6 In the state shown in b, the existing unloading mechanism is often triggered when the stamping machine or punch press is reset, which means that it usually falls from a high point. In order to avoid the problem of the finished material falling on the lower mold due to the uncontrollable landing point, it is usually necessary to design a swinging or linkage unloading track to receive the finished material after unloading. However, the above two structures have the problem of a large track rotation angle, which will form certain requirements for the upper and lower formations of the stamping machine. For this reason, it is necessary to design an automatic unloading device to solve the problem that the unloading track needs to be connected during unloading, while reducing the rotation amplitude of the unloading track. Summary of the invention
[0003] The utility model is an automatic unloading device for stamping and forming bearing outer rings, which is designed because a stamping machine needs an unloading track when unloading the material after stamping the bearing outer ring blank, so as to reduce the material falling onto the lower die to cause processing errors, reduce the impact of the falling on the material structure itself, and reduce the collision of the unloading track itself.
[0004] An automatic unloading device for stamping and forming a bearing outer ring, using an automatic loading device to load the lower die of a stamping machine, and using the automatic unloading device to unload the processed bearing outer ring that falls off the stripping plate of the stamping machine;
[0005] Automatic unloading device includes:
[0006] The blanking guide rail goes deep into the punching range of the punching machine and is in the shape of a U. A long waist hole is opened on the guide rail, and the long waist hole matches the size of the punching machine die;
[0007] A pair of guide grooves are provided on the bottom surface of the unloading guide rail for inserting the flap;
[0008] The flap is arranged on the bottom surface of the unloading guide rail, cooperates with the long waist hole, and is driven by the flap driving device;
[0009] The flap driving device transmits power to the telescopic end and the flap.
[0010] Preferably, the flap driving device comprises:
[0011] Telescopic cylinder, the cylinder body is arranged on the bottom surface of the unloading guide rail, and the telescopic end is fixedly connected with the movable plate;
[0012] The light curtain sensor is set on the periphery of the working cylinder of the stamping machine. The light curtain is set horizontally. The vertical height of the light curtain is between the top surface of the lower mold and the bottom surface of the unloading guide within the range of the stamping machine mold or between the highest point of the unloading guide within the range of the stamping machine mold and the unloading point of the stripping plate.
[0013] Preferably, the flap driving device comprises: a pipeline device and a return spring;
[0014] The return spring is installed on the bottom surface of the unloading guide rail and is used to return the flap;
[0015] The pipeline device includes an outer sleeve and a cable, wherein the first end of the sleeve is fixedly connected to the lower die bed of the punching machine, and the second end is fixedly connected to the blanking guide rail, and the first end of the cable is fixedly connected to the upper die plate of the punching machine, and the second end is fixedly connected to the flap;
[0016] The pipeline device is used for the press to drive the flap to extend and retract.
[0017] Preferably, the unloading guide rail further includes a hinge platform and a limit platform;
[0018] The handover table is arranged outside the range of the punching machine, the handover table is hinged to the unloading guide rail, and the center of gravity of the unloading guide rail is arranged between the output port and the hinge point;
[0019] A limiting platform is arranged at the bottom between the output port and the hinge point, and a rubber pad is arranged on the top surface of the limiting platform.
[0020] Preferably, an inner flap is further provided in the unloading guide rail, the inner flap matches the size and position of the flap and is detachably connected through the long waist hole.
[0021] The beneficial effects of the utility model are: the swing amplitude of the unloading guide rail is compressed to within 60°, thereby reducing the rotation collision and wear of the rail itself; the unloading guide rail will not affect the operation of the automatic loading device; the width of the unloading guide rail is larger than the size of the lower template, so it can effectively catch the boring material dropped from the stripping plate and unload it along the track, and can effectively reduce the distance when the material falls, thereby reducing the impact of the fall on the structure of the finished material. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 State diagram of the punching machine when it is reset in Example 1;
[0023] Figure 2 State diagram of the punching machine when pressing down in Example 1;
[0024] Figure 3 Structural diagram of the blanking guide rail used in Example 1;
[0025] Figure 4 Structural diagram of the feed guide rail used in Example 3
[0026] Figure 5 This is the modification diagram of the long waist hole when using the inner flap;
[0027] Figure 6 Structural diagram of the material processed by the utility model and the material after processing;
[0028] In the figure: 1. punching machine, 2. unloading guide rail, 3. articulated table, 4. limit table, 5. movable plate, 6. telescopic cylinder, 7. pipeline device, 8. return spring. DETAILED DESCRIPTION
[0029] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example
[0030] like Figure 1 and Figure 2 As shown, the automatic unloading device for stamping and forming a bearing outer ring uses an automatic loading device to load the lower mold of a punching machine 1, and uses the automatic unloading device to unload the processed bearing outer ring that falls off the stripping plate of the punching machine;
[0031] The automatic unloading device includes: an unloading guide rail 2, which extends deep into the punching range of the punching machine, is in the shape of a U, and is provided with a long waist hole, and the long waist hole matches the size of the mold of the punching machine; a pair of guide grooves are provided on the bottom surface of the unloading guide rail for inserting a movable plate; a movable plate 5, which is arranged on the bottom surface of the unloading guide rail, cooperates with the long waist hole, and is driven by a movable plate driving device; the movable plate driving device, the telescopic end is transmitted to the movable plate.
[0032] The specific working process of the device is as follows: Use the automatic feeding device to clamp the bearing outer ring blank a and press it onto the lower mold (the feeding position is as follows Figure 1 The dotted area shown by label c), and then the punching machine starts to press down, the upper die passes through the long waist hole of the blanking guide rail to punch the bearing outer ring blank a on the lower die and reset. At the same time, the long waist hole of the blanking guide rail is covered by the movable plate. When the stripper plate is at the working height, the rough-processed material b of the bearing outer ring falls from the upper die and falls into the blanking guide rail and is discharged along the blanking guide rail.
[0033] like Figure 3 The flap drive device shown comprises:
[0034] Telescopic cylinder 6, the cylinder body is arranged on the bottom surface of the unloading guide rail, and the telescopic end is fixedly connected to the flap;
[0035] The light curtain sensor is set on the periphery of the working cylinder of the stamping machine. The light curtain is set horizontally. The vertical height of the light curtain is between the top surface of the lower mold and the bottom surface of the unloading guide within the range of the stamping machine mold or between the highest point of the unloading guide within the range of the stamping machine mold and the unloading point of the stripping plate.
[0036] When there is no upper mold within the range of the light curtain sensor, the telescopic cylinder is started.
[0037] The unloading guide rail further includes a hinge platform 3 and a limit platform 4;
[0038] The handover table is arranged outside the range of the punching machine, the handover table is hinged to the unloading guide rail, and the center of gravity of the unloading guide rail is arranged between the output port and the hinge point;
[0039] A limiting platform is arranged at the bottom between the output port and the hinge point, and a rubber pad is arranged on the top surface of the limiting platform.
[0040] When the upper machine tool of the punch press presses down, it can touch the high point of the unloading guide rail, so that the unloading guide rail will rotate with the hinge point of the articulation table. When the unloading guide rail is reset, it will maintain a large angle with the horizontal plane, which is conducive to unloading and reduces the vertical distance between the unloading point and the contact surface of the unloading guide rail. Generally speaking, the reset adopts an eccentric method, and the cylinder body of the telescopic cylinder can also be used as a counterweight.
[0041] The unloading guide rail is also provided with an inner flap, which matches the size and position of the flap and is detachably connected through the long waist hole. Figure 5 As shown, in order to facilitate the movement of the connecting point of the two movable plates, a rectangular hole is extended on the long waist hole, which is on the same axis as the long waist hole, so as to facilitate the movement of the connecting point so that the long waist hole can remain unobstructed by the partner. Example
[0042] This embodiment is a supplement to the embodiment 1. For the structure without using the blanking guide articulated table, there may be a problem of a small gap between the blanking guide and the lower mold. In this case, the lower mold can be loaded from the space above the blanking guide and below the upper mold through the long waist hole of the blanking guide.
[0043] Figure 1 The original loading point shown is on the left, while loading from above the unloading guide is suitable on the right, which is the unloading direction. Example
[0044] The difference between this embodiment and embodiment 1 is that a different flap driving device is used. Figure 4The pipeline device shown includes: a pipeline device 7 and a reset spring 8; the reset spring is installed on the bottom surface of the blanking guide rail and is used to reset the flap; the pipeline device includes an outer sleeve and a cable, wherein the first end of the sleeve is fixedly connected to the lower die bed of the punching machine, and the second end is fixedly connected to the blanking guide rail, the first end of the cable is fixedly connected to the upper die plate of the punching machine, and the second end is fixedly connected to the flap; the pipeline device is used for the punching machine to drive the flap to extend and retract. The pipeline device adopts a sleeve and cable structure similar to that of a bicycle brake line. And a scheme of using two pipeline devices at the same time is adopted to avoid the long waist hole of the blanking guide rail.
[0045] When the punch presses down, the pipeline device relaxes and the return spring pulls the flap, so that the long waist hole remains uncovered.
[0046] When the punch press is reset, before the stripping height, the cable in the pipeline device is pulled by the punch press, driving the flap to cover the long waist hole. When stripping, the material can be unloaded through the unloading guide rail without being affected by the long waist hole.
[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An automatic unloading device for stamping and forming a bearing outer ring, which uses an automatic loading device to load the lower die of a stamping machine, characterized in that: Use the automatic unloading device to unload the processed bearing outer ring that falls off the stripping plate of the punching machine; Automatic unloading device includes: The blanking guide rail goes deep into the punching range of the punching machine and is in the shape of a U. A long waist hole is opened on the guide rail, and the long waist hole matches the size of the punching machine die; A pair of guide grooves are provided on the bottom surface of the unloading guide rail for inserting the flap; The flap is arranged on the bottom surface of the unloading guide rail, cooperates with the long waist hole, and is driven by the flap driving device; The flap driving device transmits power to the telescopic end and the flap.
2. The automatic blanking device for stamping and forming a bearing outer ring according to claim 1, characterized in that: The flap driving device comprises: Telescopic cylinder, the cylinder body is arranged on the bottom surface of the unloading guide rail, and the telescopic end is fixedly connected with the movable plate; The light curtain sensor is set on the periphery of the working cylinder of the stamping machine. The light curtain is set horizontally. The vertical height of the light curtain is between the top surface of the lower mold and the bottom surface of the unloading guide within the range of the stamping machine mold or between the highest point of the unloading guide within the range of the stamping machine mold and the unloading point of the stripping plate.
3. The automatic blanking device for stamping and forming a bearing outer ring according to claim 1 is characterized in that: The flap driving device comprises: a pipeline device and a return spring; The return spring is installed on the bottom surface of the unloading guide rail and is used to return the flap; The pipeline device includes an outer sleeve and a cable, wherein the first end of the sleeve is fixedly connected to the lower die bed of the punching machine, and the second end is fixedly connected to the blanking guide rail, and the first end of the cable is fixedly connected to the upper die plate of the punching machine, and the second end is fixedly connected to the flap; The pipeline device is used for the press to drive the flap to extend and retract.
4. The automatic blanking device for stamping and forming a bearing outer ring according to claim 2 or 3, characterized in that: The unloading guide rail also includes a hinged platform and a limit platform; The articulated platform is arranged outside the range of the punching machine, the articulated platform is articulated with the unloading guide rail, and the center of gravity of the unloading guide rail is arranged between the output port and the articulated point; A limiting platform is arranged at the bottom between the output port and the hinge point, and a rubber pad is arranged on the top surface of the limiting platform.
5. The automatic blanking device for stamping and forming a bearing outer ring according to claim 4, characterized in that: The unloading guide rail is also provided with an inner flap, which matches the size and position of the flap and is detachably connected through the long waist hole.