Automatic stretching device for bearing outer ring

Abstract

The utility model provides an automatic stretching device for a bearing outer ring, which is used for feeding materials to a punching machine through automatic feeding equipment and automatically discharging materials by improving a die aiming at the problem that the existing sheet material processing adopts manual feeding and discharging. The automatic stretching device for the bearing outer ring comprises the punching machine, the punching die and an automatic sheet material feeding device, the automatic sheet stock feeding device is arranged on the front face of the stamping die and comprises a stacking barrel, an automatic push plate and a push plate control air cylinder. The connecting piece face of the central axis of the stacking cylinder and the central axis of the stamping die is the plane where the automatic push plate is located. The automatic push plate is wrapped with a fixed rail, the width of the rail is matched with the inner diameter of the stacking cylinder, and the stacking cylinder is arranged on the top face of the rail. And the automatic push plate is embedded into the fixed rail to slide.

Description

Technical Field

[0001] The utility model relates to the field of bearing manufacturing, in particular to an automatic stretching device for 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 processing process of the rings varies depending on the raw materials or blank forms. The entire inner and outer ring processing process is: bar or tube (some bar needs to be forged and annealed, normalized), turning, heat treatment, grinding, lapping or polishing, final inspection of parts, rust prevention, and storage. The outer ring of the bearing involved in the utility model does not use traditional bar processing, but is close to tube processing - by stamping the sheet into a seamless round tube, and then undergoing other processing to make the outer ring of the bearing. Summary of the invention

[0003] The utility model is designed to solve the existing sheet material processing by manual loading and unloading, and is a bearing outer ring automatic stretching device which uses automatic loading equipment to load materials for a punching machine and improves the mold to automatically unload materials.

[0004] An automatic bearing outer ring stretching device comprises a punching machine, a punching die, and a sheet material automatic feeding device;

[0005] The automatic sheet material feeding device is arranged on the front of the stamping die, and the automatic sheet material feeding device comprises: a stacking barrel, an automatic push plate and a push plate control cylinder;

[0006] The connecting plane of the central axis of the stacking tube and the central axis of the punching die is the plane where the automatic push plate is located;

[0007] The automatic push plate is wrapped with a fixed track, the width of the track matches the inner diameter of the stacking tube, and the stacking tube is set on the top surface of the track;

[0008] The automatic push plate is embedded in the fixed track and slides.

[0009] As a preference,

[0010] The stacking tube is cylindrical, with a through hole vertically opened along the cylindrical surface, the through hole and the top edge are in a bell-mouth shape, and the inner wall surface and the outer wall surface of the top surface of the cylinder are transitioned only by a circular arc;

[0011] A circular plate-shaped base is provided at the bottom of the stacking cylinder, and is fixed to a fixed track wrapped outside the automatic push plate through the circular plate-shaped base;

[0012] The short side of the automatic push plate and the stacking barrel is arranged to be a concave arc side.

[0013] Preferably, a micro switch is arranged on the top surface of the fixed track, and the micro switch cooperates with a push head of a push plate control cylinder, wherein an automatic push plate embedded in the fixed track is fixed on the push head.

[0014] Preferably, a countersunk hole is provided at the top of the stamping die, and a forming hole is provided concentrically therewith, the forming hole is provided on the bottom surface of the countersunk hole, and the bottom surface of the countersunk hole and the inner wall of the forming hole are transitioned by a rounded corner;

[0015] A stripping mechanism is provided in the forming hole;

[0016] The stripping mechanisms are arranged rotationally symmetrically around the central axis of the forming hole, and there are at least four of them;

[0017] The column of the forming hole is provided with an embedding hole, and the stripping mechanism includes a movable baffle and a limiting rod;

[0018] The movable baffle is L-shaped, wherein the vertical side of the L shape matches the inner wall of the forming hole, the horizontal side is arranged at the upper end of the vertical side, and a hinge axis is arranged at the intersection, so that the movable baffle is arranged in the embedded hole;

[0019] A limiting rod is fixed in the embedded hole, and the limiting rod is matched with the horizontal edge of the movable baffle.

[0020] Preferably, the lower end angle of the vertical side of the movable baffle is set to between 70° and 80°.

[0021] Preferably, a transfer groove is provided on the stamping die, the width of the transfer groove matches the automatic push plate, and the depth of the transfer groove is less than or equal to 1 / 2 of the depth of the countersunk hole;

[0022] The transfer groove is communicated with the placement counterbore.

[0023] The beneficial effects of the utility model are: the purpose of automatically stretching the outer ring of the bearing is achieved through the automatic feeding of the sheet material and the automatic operation of the punching machine. The opening of the stacking barrel is conducive to intuitively observing the number of remaining sheets, which is convenient for replenishment and convenient for taking out sheets from the inside for maintenance. The micro switch is used as the control of the cylinder stroke to avoid complex controllers and simplify the control of the cylinder. The setting of the stripping mechanism is convenient for the punch of the punching machine to automatically strip the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall front assembly diagram of the device;

[0025] Figure 2 Placement of the countersunk hole and transfer slot structure diagram;

[0026] Figure 3 Schematic diagram of stamping die cross section;

[0027] In the figure: 1. punching machine, 2. punching die, 3. stacking barrel, 4. micro switch, 5. fixed track, 6. automatic push plate, 7. push plate control cylinder, 8. movable baffle, 9. embedding hole. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0029] like Figure 1 and Figure 2 As shown, the automatic bearing outer ring stretching device comprises a punching machine 1, a punching die 2, and an automatic sheet material feeding device;

[0030] The automatic sheet material feeding device is arranged on the front of the stamping die, and the automatic sheet material feeding device comprises: a stacking cylinder, an automatic push plate and a push plate control cylinder 7;

[0031] The plane connecting the central axis of the stacking tube 3 and the central axis of the punching die is the plane where the automatic push plate is located;

[0032] The automatic push plate 6 is wrapped with a fixed track 5, the width of the track matches the inner diameter of the stacking tube, and the stacking tube is arranged on the top surface of the track;

[0033] The automatic push plate is embedded in the fixed track and slides.

[0034] The telescopic end of the push plate control cylinder 7 fixes the second end of the automatic push plate 6, and the first end of the automatic push plate 6 is used to push the sheet for stamping.

[0035] The stacking tube 3 is cylindrical, with a through hole vertically opened along the cylindrical surface, the through hole and the top edge are in a bell-mouth shape, and only a circular arc is used to transition between the inner wall surface and the outer wall surface of the top surface of the cylinder;

[0036] A circular plate-shaped base is provided at the bottom of the stacking cylinder, and is fixed to a fixed track wrapped outside the automatic push plate through the circular plate-shaped base;

[0037] The short side (first end) of the automatic push plate that cooperates with the stacking barrel is set to be a concave arc side.

[0038] A micro switch 4 is arranged on the top surface of the fixed track, and the micro switch 4 cooperates with the push head of the push plate control cylinder, wherein an automatic push plate embedded in the fixed track is fixed on the push head.

[0039] like Figure 2 and Figure 3 As shown, a countersunk hole is provided on the top of the stamping die, and a forming hole is provided concentrically therewith. The forming hole is provided on the bottom surface of the countersunk hole, and the bottom surface of the countersunk hole and the inner wall of the forming hole are transitioned by a rounded corner.

[0040] A stripping mechanism is provided in the forming hole;

[0041] The stripping mechanisms are arranged rotationally symmetrically around the central axis of the forming hole, and there are at least four of them;

[0042] The column of the forming hole is provided with an embedding hole 9, and the stripping mechanism includes a movable baffle 8 and a limiting rod;

[0043] The movable baffle is L-shaped, wherein the vertical side of the L shape matches the inner wall of the forming hole, the horizontal side is arranged at the upper end of the vertical side, and a hinge axis is arranged at the intersection, so that the movable baffle is arranged in the embedded hole;

[0044] A limiting rod is fixed in the embedded hole, and the limiting rod is matched with the horizontal edge of the movable baffle.

[0045] The lower end angle of the vertical side of the movable baffle is set to 80°. The angle is set so that when the movable baffle is rotated to abut against the limit rod, the lower end surface of the vertical side is horizontal, which is convenient for demoulding. The actual design angle should be determined according to the rotation angle of the vertical side.

[0046] A transfer groove is provided on the stamping die, the width of the transfer groove matches the automatic push plate, the depth of the transfer groove is equal to 1 / 2 of the depth of the placement countersink; the transfer groove is connected to the placement countersink.

[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 stretching device for a bearing outer ring, characterized in that: It includes a punching machine, a punching die, and an automatic sheet material feeding device; The automatic sheet material feeding device is arranged on the front of the stamping die, and the automatic sheet material feeding device comprises: a stacking barrel, an automatic push plate and a push plate control cylinder; the plane connecting the central axis of the stacking barrel and the central axis of the stamping die is the plane where the automatic push plate is located; The automatic push plate is wrapped with a fixed track, the width of the track matches the inner diameter of the stacking tube, and the stacking tube is set on the top surface of the track; The automatic push plate is embedded in the fixed track and slides.

2. The automatic bearing outer ring stretching device according to claim 1, characterized in that: The stacking barrel is cylindrical and has a through hole vertically opened along the cylindrical surface. The through hole and the top edge are in a trumpet shape, and only a circular arc is used to transition between the inner wall and the outer wall of the top surface of the cylinder. A circular plate-shaped base is provided at the bottom of the stacking barrel, which is fixed to the fixed track wrapped around the automatic push plate through the circular plate-shaped base; the short side of the automatic push plate and the stacking barrel that cooperate is set to a concave arc edge.

3. The automatic bearing outer ring stretching device according to claim 1, characterized in that: A micro switch is arranged on the top surface of the fixed track, and the micro switch cooperates with a push head of a push plate control cylinder, wherein an automatic push plate embedded in the fixed track is fixed on the push head.

4. The automatic bearing outer ring stretching device according to claim 1, characterized in that: A countersink is provided on the top of the stamping die, and a forming hole is provided concentrically. The forming hole is provided on the bottom surface of the countersink, and the bottom surface of the countersink and the inner wall of the forming hole are transitioned by a rounded corner; a stripping mechanism is provided in the forming hole; the stripping mechanism is rotationally symmetrically provided around the central axis of the forming hole, and there are at least 4 stripping mechanisms; the column of the forming hole is provided with an embedded hole, and the stripping mechanism includes a movable baffle and a limit rod; The movable baffle is L-shaped, wherein the vertical side of the L shape cooperates with the inner wall of the forming hole, the horizontal side is arranged at the upper end of the vertical side, and a hinge axis is arranged at the intersection so that the movable baffle is arranged in the embedded hole; a limit rod is fixed in the embedded hole, and the limit rod cooperates with the horizontal side of the movable baffle.

5. The automatic bearing outer ring stretching device according to claim 4, characterized in that: The lower end angle of the vertical side of the movable baffle is set to between 70° and 80°.

6. The automatic bearing outer ring stretching device according to claim 4, characterized in that: A transfer groove is provided on the stamping die, the width of the transfer groove matches the automatic push plate, the depth of the transfer groove is less than or equal to 1 / 2 of the depth of the countersink, and the transfer groove is connected with the countersink.

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