阅读说明：本技术 一种轴承套圈碾环机 (Bearing ring rolling machine ) 是由 马桢明 方进 史洪军 倪林 于 2020-04-07 设计创作，主要内容包括：本发明公开了一种轴承套圈碾环机,包括驱动装置、床身、支架、主轧辊、抱辊和芯轴；所述床身上设置有抱辊以及可沿水平方向移动的支架；所述支架上安装有纵向设置的主轧辊；所述驱动装置与主轧辊连接；支架上设置有与芯轴同轴心的左右两个抱臂,且抱臂可以抱紧设置在芯轴上端的轴承；所述芯轴的初始加工位置的正上方设置有连续添料装置,且连续添料装置位于抱臂的上方；上料时,抱臂左右方向打开,连续添料装置把从锻造冲压后的待加工件垂直向下套到芯轴上。本发明可以大大降低上料时的时间间隔,保持碾环机持续作业,加工时间可以降低到原来常规加工方式的80％左右；而且加工过程动力消耗少,节约了能源,加工出来的轴承套圈的质量更好,更稳定。(The invention discloses a bearing ring rolling mill which comprises a driving device, a lathe bed, a support, a main roller, a holding roller and a mandrel, wherein the main roller is arranged on the main roller; the machine body is provided with a holding roller and a bracket capable of moving along the horizontal direction; the bracket is provided with a main roller which is longitudinally arranged; the driving device is connected with the main roller; the bracket is provided with a left holding arm and a right holding arm which are coaxial with the mandrel, and the holding arms can hold a bearing arranged at the upper end of the mandrel tightly; a continuous feeding device is arranged right above the initial processing position of the mandrel and is positioned above the arm; during feeding, the arm is opened in the left-right direction, and the continuous feeding device vertically downwards sleeves the workpiece to be machined after forging and stamping onto the mandrel. The invention can greatly reduce the time interval during feeding, keep the ring rolling mill to operate continuously, and reduce the processing time to about 80 percent of the original conventional processing mode; and the power consumption is less in the processing process, the energy is saved, and the processed bearing ring has better and more stable quality.)

1. A bearing ring rolling mill comprises a driving device, a lathe bed, a support, a main roller, a holding roller and a mandrel; the machine body is provided with a holding roller and a bracket capable of moving along the horizontal direction; the bracket is provided with a main roller which is longitudinally arranged; the driving device is connected with the main roller; the method is characterized in that: the bracket is provided with a left holding arm and a right holding arm which are coaxial with the mandrel, and the holding arms can hold a bearing arranged at the upper end of the mandrel tightly; a continuous feeding device is arranged right above the initial processing position of the mandrel and is positioned above the arm; during feeding, the arm is opened in the left-right direction, and the continuous feeding device vertically downwards sleeves the workpiece to be machined after forging and stamping onto the mandrel.

2. A bearing ring rolling mill according to claim 1, characterized in that: the continuous feeding device comprises a feeding device and a loading device; the feeding device conveys the workpiece to be machined after forging and stamping to the upper part of the feeding device; the feeding device vertically downwards sleeves the workpiece to be machined, which is sent from the feeding device, on the mandrel.

3. A bearing ring rolling mill according to claim 2, characterized in that: the feeding device comprises a first square pipe, a first chain plate conveyor, a screw, a connecting plate and a locking block; a group of first chain plate conveyors arranged side by side is arranged in the first square pipe; corresponding connecting plates are arranged on the two first chain plate conveyors along the inner wall positions of the two sides of the first square pipe; the connecting plate is connected with a screw through an internal thread; one end of the screw rod penetrates through the connecting plate and then is fixed with the locking blocks, and the distance between the two corresponding locking blocks is larger than the outer diameter of the workpiece to be machined.

4. A bearing ring rolling mill according to claim 3, characterized in that: the other end of the screw is provided with an inner hexagonal hole; the side surfaces of two ends of the first square pipe are respectively provided with a guide pipe; the diameter of the inner hole of the guide pipe is larger than the diameter of the circumscribed circle of the hexagon socket hole of the screw, and the axis of the guide pipe is the same as the axis of the hexagon socket hole of the screw.

5. A bearing ring rolling mill according to claim 4, characterized in that: and a limiting plate is arranged on the outer surface of one end, provided with the hexagon socket, of the screw rod.

6. A bearing ring rolling mill according to claim 3, characterized in that: the feeding device comprises a second square pipe, a second chain plate conveyor and a discharging mechanism; the second square pipe is vertically arranged, and the upper end of the second square pipe is connected with the discharge end of the first square pipe of the feeding device; a group of second chain plate conveyors for carrying out vertical downward transportation is arranged in the second square pipe; the left side surface and the right side surface of the second chain plate conveyor are respectively and correspondingly provided with a blanking mechanism; the vertical central line of the second square pipe is superposed with the axis of the mandrel; the blanking mechanism supports the left side and the right side of the lower surface of the workpiece to be machined, conveys the workpiece to be machined to a discharge hole of the feeding device, releases the workpiece to be machined, and enables the workpiece to be machined to be sleeved on the mandrel.

7. A bearing ring rolling mill according to claim 6, characterized in that: the blanking mechanism comprises a connecting block, a hydraulic cylinder, a hinge, a fixing plate, a supporting block and a locking block; one side of the connecting block is fixed with the second chain plate conveyor, and the lower surface of the other side surface is movably connected with a supporting block through a hinge; the upper surface of the supporting block is fixed with one end of the inclined fixing plate; the other end of the fixing plate is provided with a through hole; the connecting rod arranged on the hydraulic cylinder on the front side of the connecting block can pass through the through hole of the fixing plate to be locked with the locking block.

8. A bearing ring rolling mill according to claim 6, characterized in that: the discharge end of the first square pipe is provided with an opening corresponding to the feed end of the second square pipe.

Technical Field

The invention relates to the technical field of machining, in particular to a bearing ring rolling machine.

Background

The bearing ring is a ring-shaped part of a centripetal rolling bearing with one or more raceways, and the production process sequentially comprises the working procedures of forging, stamping, ring rolling and finish machining. The rolling of the ring (also called ring rolling, reaming and ring rolling) is a plastic processing technology which makes the ring produce continuous local plastic deformation by means of a ring rolling machine (also called ring rolling machine, ring rolling mill and reaming machine) so as to realize wall thickness reduction, diameter enlargement and cross section profile forming. The conventional ring rolling mill in the market is disconnected with the forging and stamping processes, the forging and stamping rhythm is much higher than the ring rolling rhythm, so that a workpiece to be machined after forging and stamping needs to wait for a long time to enter the ring rolling mill for ring rolling, a lot of waiting time is left in the operation process of an operator, and manpower is wasted; in addition, the workpiece to be machined after forging and stamping is cooled again after a long waiting time, so that the machining difficulty of the ring rolling machine is greatly increased, and the working efficiency is seriously influenced.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a bearing ring rolling mill.

The invention is realized by adopting the following technical scheme:

a bearing ring rolling mill comprises a driving device, a lathe bed, a support, a main roller, a holding roller and a mandrel; the machine body is provided with a holding roller and a bracket capable of moving along the horizontal direction; the bracket is provided with a main roller which is longitudinally arranged; the driving device is connected with the main roller; the bracket is provided with a left holding arm and a right holding arm which are coaxial with the mandrel, and the holding arms can hold a bearing arranged at the upper end of the mandrel tightly; a continuous feeding device is arranged right above the initial processing position of the mandrel and is positioned above the arm; during feeding, the arm is opened in the left-right direction, and the continuous feeding device vertically downwards sleeves the workpiece to be machined after forging and stamping onto the mandrel.

Further, the continuous feeding device comprises a feeding device and a loading device; the feeding device conveys the workpiece to be machined after forging and stamping to the upper part of the feeding device; the feeding device vertically downwards sleeves the workpiece to be machined, which is sent from the feeding device, on the mandrel.

Further, the feeding device comprises a first square pipe, a first chain plate conveyor, a screw, a connecting plate and a locking block; a group of first chain plate conveyors arranged side by side is arranged in the first square pipe; corresponding connecting plates are arranged on the two first chain plate conveyors along the inner wall positions of the two sides of the first square pipe; the connecting plate is connected with a screw through an internal thread; one end of the screw rod penetrates through the connecting plate and then is fixed with the locking blocks, and the distance between the two corresponding locking blocks is larger than the outer diameter of the workpiece to be machined.

Further, the other end of the screw is provided with an inner hexagonal hole; the side surfaces of two ends of the first square pipe are respectively provided with a guide pipe; the diameter of the inner hole of the guide pipe is larger than the diameter of the circumscribed circle of the hexagon socket hole of the screw, and the axis of the guide pipe is the same as the axis of the hexagon socket hole of the screw.

Furthermore, the surface that the screw rod was provided with the one end of interior hexagonal hole sets up the limiting plate.

Further, the feeding device comprises a second square pipe, a second chain plate conveyor and a discharging mechanism; the second square pipe is vertically arranged, and the upper end of the second square pipe is connected with the discharge end of the first square pipe of the feeding device; a group of second chain plate conveyors for carrying out vertical downward transportation is arranged in the second square pipe; the left side surface and the right side surface of the second chain plate conveyor are respectively and correspondingly provided with a blanking mechanism; the vertical central line of the second square pipe is superposed with the axis of the mandrel; the blanking device supports the left side and the right side of the lower surface of the workpiece to be machined, conveys the workpiece to be machined to a discharge port of the feeding device, and releases the workpiece to be machined to enable the workpiece to be machined to be sleeved on the mandrel.

Further, the blanking mechanism comprises a connecting block, a hydraulic cylinder, a hinge, a fixing plate, a supporting block and a locking block; one side of the connecting block is fixed with the second chain plate conveyor, and the lower surface of the other side surface is movably connected with a supporting block through a hinge; the upper surface of the supporting block is fixed with one end of the inclined fixing plate; the other end of the fixing plate is provided with a through hole; the connecting rod arranged on the hydraulic cylinder on the front side of the connecting block can pass through the through hole of the fixing plate to be locked with the locking block.

Furthermore, the discharge end of the first square pipe is provided with an opening corresponding to the feed end of the second square pipe.

In conclusion, the invention has the following beneficial effects: (1) the invention changes the original feeding mode, the mandrel is tightly held by the left holding arm and the right holding arm, and then the mandrel is processed, so that the time interval during feeding can be greatly reduced, and the continuous operation of the ring rolling mill is kept; (2) the running time of the workpiece to be machined between the working procedures can be reduced through the continuous feeding device; the processing time can be reduced to about 80 percent of the original conventional processing mode; (3) the heat loss of the parts to be machined in the continuous feeding device is low, the optimal machining stability of each part to be machined can be guaranteed, the machining is easier, the power consumption in the machining process is low, the energy is saved, the quality of the machined bearing ring is better and more stable, and the assembly line type operation can be realized.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a partial structure schematic diagram of a conventional product.

Fig. 3 is a schematic structural view of the continuous feeding device of the present invention.

Fig. 4 is a schematic structural view of the feeding device of the present invention.

FIG. 5 is a schematic structural diagram of a loading device according to the present invention.

Fig. 6 is a schematic top view of the feeding device a of the present invention.

Fig. 7 is a schematic structural view of the blanking mechanism of the present invention.

Fig. 8 is a schematic structural view of the feeding mechanism of the present invention moving to different positions.

FIG. 9 is a schematic structural diagram of a member to be machined of the bearing ring according to the present invention.

Wherein: a feeding device 100; a feeding device 200; a driving device 300; a bed 400; a bracket 500; a main roll 600; a wrap around roller 700; a mandrel 800; the arm 900; a first square tube 101; a first apron conveyor 102; a stopper plate 103; a guide tube 104; a screw 105; a connecting plate 106; an opening 107; a locking block 108; a second square tube 201; a second apron conveyor 202; a blanking mechanism 203; a connecting block 2031; a hydraulic cylinder 2032; a hinge 2033; a fixing plate 2034; a support block 2035; the locking blocks 2036.

Detailed Description

As shown in fig. 1 to 9, the present invention is further explained in conjunction with the embodiments and the accompanying drawings.