Auxiliary feeding and discharging device for stamping bearing protection frame

Abstract

The invention relates to the field of bearing protection frame machining, in particular to an auxiliary feeding and discharging device for bearing protection frame stamping. The auxiliary feeding and discharging device for stamping of the bearing protection frame comprises a storing and supplying unit and a feeding and discharging unit. The feeding and discharging unit comprises a supporting frame fixed to the ground surface, a feeding mechanism and a discharging mechanism. The mechanical arm structure is rotatably mounted on the supporting frame; the feeding and discharging mechanism is rotatably mounted on the mechanical arm structure, the feeding and discharging mechanism comprises a first mounting disc and a second mounting disc, and a suction cup is mounted at the lower end of the first mounting disc; and a plurality of annularly distributed electromagnetic suction heads are mounted at the lower end of the second mounting disc. The protection frame raw materials are fed and discharged through intelligent grabbing and releasing actions of the rotating arm, meanwhile, different grabbing mechanisms are arranged according to the geometrical shapes of the raw materials before punching and after punching, the feeding and discharging precision is guaranteed, and the taking and placing precision is improved in cooperation with arrangement of a second positioning probe.

Description

Technical Field

[0001] The invention relates to the field of bearing protection frame processing, and in particular to an auxiliary loading and unloading device for stamping a bearing protection frame. Background Art

[0002] The bearing cage, also known as the retainer, is used to isolate the rolling elements and guide them to move on their normal tracks. The cage is a small part of the bearing. Although it is only a small part, its role cannot be ignored. It can prevent the rolling elements from falling off, guide the rolling elements to roll on the correct rollers, keep the distance between the rolling elements equal, and achieve the purpose of even load distribution. At the same time, it can also prevent the rolling elements from rubbing and colliding with each other when working.

[0003] Traditional bearing protection frame processing is mainly automated mechanical processing, which improves the efficiency of production and processing. However, for the loading and unloading structure in the entire production system, there are shortcomings such as insufficient integrated design of automatic loading and unloading of workpieces, difficulty in ensuring the positioning accuracy of workpiece stamping during loading, and a single shape of the workpiece grabbing mechanism.

[0004] Therefore, it is necessary to provide a new auxiliary loading and unloading device for stamping a bearing protection frame to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an auxiliary loading and unloading device for stamping a bearing protection frame.

[0006] The auxiliary loading and unloading device for stamping a bearing protection frame provided by the present invention comprises a material storage and feeding unit and a material loading and unloading unit, and plate raw materials are stacked in the material storage and feeding unit; The loading and unloading unit is located between the material storage and feeding unit and the stamping processing center; The loading and unloading unit comprises: A support frame, wherein the support frame is fixed to the ground surface; A mechanical arm structure, wherein the mechanical arm structure is rotatably mounted on the support frame; A loading and unloading mechanism, which is rotatably mounted on the mechanical arm structure, and comprises a first mounting plate and a second mounting plate, wherein a suction cup is mounted at the lower end of the first mounting plate, and the plate raw material in the material storage and feeding unit is adsorbed by negative pressure; and a plurality of annularly distributed electromagnetic suction heads are mounted at the lower end of the second mounting plate, and the stamped workpiece in the stamping machining center is adsorbed by magnetic attraction; A plurality of second positioning probes distributed in an annular shape are fixed to the lower ends of the first mounting plate and the second mounting plate near the edges.

[0007] Preferably, the robotic arm structure includes a base, the base is horizontally rotatably mounted on a support frame, a first transmission arm is vertically rotatably mounted on the base, a second transmission arm is vertically rotatably mounted on the other end of the first transmission arm, and a mounting base is vertically rotatably mounted on the other end of the second transmission arm.

[0008] Preferably, the loading and unloading mechanism further comprises a connecting shaft, which is rotatably mounted on the mounting seat in the horizontal direction, and a first rack rod and a second rack rod distributed vertically are fixed at the other end of the connecting shaft; A vacuum pump is fixed on the first rack rod near the other end, the first mounting plate is also fixed on the first rack rod, and the vacuum pump is connected to the suction cup; The second mounting plate is fixed on the second rack rod.

[0009] Preferably, the material storage and feeding unit comprises a base frame, a material storage rack and a lifting and feeding mechanism.

[0010] Preferably, the base frame includes a base plate, a plurality of supporting feet are fixed at the lower end of the base plate, a plurality of vertical bars distributed in a U-shape are fixed to the upper end of the base plate, a horizontal bar is fixed between adjacent vertical bars and near the top, the vertical bars and the horizontal bars form an outer frame, and an auxiliary bar is fixed between two of the vertical bars through an angle bracket.

[0011] Preferably, the material storage rack comprises a bottom plate and a top plate which are located inside the outer frame, distributed up and down and arranged concentrically, there is a certain distance between the bottom plate and the bottom plate, and the bottom plate and the top plate are connected by a rotatable fixed shaft; The bottom plate is provided with a plurality of annularly distributed notches, and the plate raw material is placed on the bottom plate and corresponds to the notches; the top plate is provided with through holes corresponding to the positions and numbers of the notches, and the diameter of the through holes is larger than the diameter of the plate raw material, so that the plate raw material can move along the through holes to the top of the top plate; A plurality of groups of reinforcing rods are fixed between the bottom plate and the top plate, and any group of reinforcing rods are symmetrically arranged on both sides of the notch; The upper end of the fixed shaft is also rotatably connected to a positioning plate frame for supporting and positioning, and the positioning plate frame is fixed on the cross bar.

[0012] Preferably, the lifting and feeding mechanism comprises a top frame fixed on the auxiliary rod and a bottom frame fixed on the bottom plate, a threaded rod is rotatably connected between the top frame and the bottom frame, a transmission seat is threadedly connected to the threaded rod, and a support block for supporting the plate raw material is fixed on the transmission seat; A polished rod is also fixed between the top frame and the bottom frame, and the polished rod is slidably connected to the transmission seat.

[0013] Preferably, the transmission seat can be moved into the gap between the base plate and the chassis through the notch.

[0014] Preferably, a first positioning probe for positioning the transmission seat is fixed on the bottom plate and one of the cross bars; A control box is fixed on the outer frame composed of the vertical bars and the horizontal bars.

[0015] Compared with the related art, the auxiliary loading and unloading device for stamping the bearing protection frame provided by the present invention has the following beneficial effects: The intelligent grabbing and releasing action of the rotating arm is used to load and unload the raw materials of the protective frame. At the same time, different grabbing mechanisms are set according to the geometric shapes of the raw materials before and after stamping to ensure the accuracy of loading and unloading, and the setting of the second positioning probe is used to improve the pick-and-place accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of an auxiliary loading and unloading device for stamping a bearing protection frame provided by the present invention; Figure 2 It is a structural schematic diagram of the material storage and feeding unit shown in the present invention; Figure 3 It is a structural schematic diagram of the base frame shown in the present invention; Figure 4 It is a structural schematic diagram of the discharging rack shown in the present invention; Figure 5 It is a structural schematic diagram of the lifting and feeding mechanism shown in the present invention; Figure 6 It is a structural schematic diagram of the loading and unloading unit shown in the present invention; Figure 7 The present invention shows Figure 1 A schematic diagram of the structure enlarged at point A; Figure 8 It is a structural schematic diagram of the loading and unloading mechanism shown in the present invention; Fig. 9 It is a structural schematic diagram of the first installation disk shown in the present invention; Fig.10 It is a structural schematic diagram of the second installation disk shown in the present invention.

[0017] Numbers in the figure: 1, material storage and feeding unit; 11. base frame; 111. bottom plate; 112. supporting feet; 113. vertical rod; 114. horizontal rod; 115. auxiliary rod; 12. Material storage rack; 121. Chassis; 122. Top plate; 123. Fixed shaft; 124. Notch; 125. Through hole; 126. Reinforcement rod; 127. Positioning plate frame; 13. Lifting and feeding mechanism; 131. Top frame; 132. Bottom frame; 133. Threaded rod; 134. Polished rod; 135. Transmission seat; 136. Support block; 14. First positioning probe; 15. Control box; 2. Loading and unloading unit; 21. Support frame; 22. Mechanical arm structure; 221. Base; 222. First transmission arm; 223. Second transmission arm; 224. Mounting seat; 23. Loading and unloading mechanism; 231. Connecting shaft; 232. First support rod; 233. Vacuum pump; 234. Suction cup; 235. First mounting plate; 236. Second support rod; 237. Second mounting plate; 238. Electromagnetic suction head; 239. Second positioning probe; 3. Plate raw materials. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] See also Figures 1 to 10 , an auxiliary loading and unloading device for stamping a bearing protection frame provided in an embodiment of the present invention, the auxiliary loading and unloading device for stamping a bearing protection frame comprises a material storage and feeding unit 1 and a loading and unloading unit 2, sheet raw materials 3 are stacked in the material storage and feeding unit 1, and the loading and unloading unit 2 is located between the material storage and feeding unit 1 and the stamping processing center; The material storage and feeding unit 1 comprises: The base frame 11 can be placed directly on the ground surface; A material storage rack 12, the material storage rack 12 is rotatably mounted on the base frame 11, and the plate material 3 is centrally placed on the material storage rack 12; A lifting and feeding mechanism 13, which is installed on the base frame 11 and is used to lift the plate material 3 on the storage rack 12; The loading and unloading unit 2 comprises: A support frame 21, the support frame 21 is located on one side of the base frame 11 and is fixed to the ground surface; A mechanical arm structure 22, the mechanical arm structure 22 is rotatably mounted on the support frame 21; The loading and unloading mechanism 23 is rotatably mounted on the mechanical arm structure 22, and absorbs the sheet material 3 in the material storage and feeding unit 1 by means of negative pressure, and absorbs the stamped workpiece in the stamping machining center by means of magnetic attraction.

[0021] It should be noted that the material storage and feeding unit 1 and the loading and unloading unit 2 are loading and unloading devices in the entire stamping system, that is, the sheet raw material 3 is transferred to the stamping processing center, and the stamped workpiece in the stamping processing center can be taken out to realize automatic loading and unloading; As for the material storage and feeding unit 1, it is mainly used to concentrate the plate material 3 and at the same time to lift the plate material 3, so as to better cooperate with the loading and unloading mechanism 23 to transfer the plate material 3; As for the loading and unloading unit 2, it is the main loading and unloading device. It fixes the plate raw material 3 on the storage rack 12 by negative pressure adsorption, and then transfers it to the stamping processing center. At the same time, it fixes the stamped workpiece by magnetic attraction, and then transfers it to a container for collection. It has higher transfer accuracy and a wider range of applications.

[0022] In the embodiments of the present invention, please refer to Figure 3 and Figure 4 The base frame 11 includes a bottom plate 111, a plurality of supporting legs 112 are fixed at the lower end of the bottom plate 111, a plurality of vertical rods 113 distributed in a square shape are fixed at the upper end of the bottom plate 111, and a horizontal rod 114 is fixed between adjacent vertical rods 113 and near the top. The vertical rods 113 and the horizontal rods 114 form an outer frame, and an auxiliary rod 115 is fixed between two vertical rods 113 through an angle bracket; The storage rack 12 includes a bottom plate 121 and a top plate 122 which are located inside the outer frame, distributed up and down and concentrically arranged. There is a certain distance between the bottom plate 121 and the bottom plate 111, and the bottom plate 121 and the top plate 122 are connected by a rotatable fixed shaft 123; A plurality of annularly distributed notches 124 are provided on the bottom plate 121, and the plate material 3 is placed on the bottom plate 121 and corresponds to the notches 124; a through hole 125 corresponding in position and number to the notches 124 is provided on the top plate 122, and the diameter of the through hole 125 is larger than the diameter of the plate material 3, so that the plate material 3 can move along the through hole 125 to the top of the top plate 122; A plurality of reinforcing rods 126 are fixed between the bottom plate 121 and the top plate 122, and any one group of reinforcing rods 126 is symmetrically arranged on both sides of the notch 124; A positioning plate frame 127 for supporting and positioning is also rotatably connected to the upper end of the fixed shaft 123 , and the positioning plate frame 127 is fixed on the cross bar 114 .

[0023] It should be noted that: the base frame 11 is the basic frame structure in the material storage and feeding unit 1, and the bottom plate 121 arranged inside it is used to place the plate material 3. The reinforcing rod 126 arranged between the bottom plate 121 and the top plate 122 can improve the stability of both, and can also play a positioning role for the stacked plate material 3 to avoid its deviation, so that it can better cooperate with the lifting and feeding mechanism 13 to realize the lifting of the plate material 3. After the plate material 3 at the top moves up to the top of the top plate 122, it can be adsorbed and fixed by the loading and unloading mechanism 23; It should also be noted that the bottom plate 121 and the top plate 122 are both mounted on a fixed shaft 123, and the fixed shaft 123 is rotatable (the rotation of the fixed shaft 123 is driven by a motor), thereby driving the bottom plate 121 and the plate material 3 thereon to rotate. Therefore, after a portion of the plate material 3 is used up, the remaining unused portion can be replaced, and timely material replenishment can be carried out to further improve the efficiency of the stamping process.

[0024] In the embodiments of the present invention, please refer to Figure 3 and Figure 5 The lifting and feeding mechanism 13 includes a top frame 131 fixed on the auxiliary rod 115 and a bottom frame 132 fixed on the bottom plate 111, a threaded rod 133 is rotatably connected between the top frame 131 and the bottom frame 132, the threaded rod 133 is threadedly connected to a transmission seat 135, and a support block 136 for supporting the plate raw material 3 is fixed on the transmission seat 135; A polished rod 134 is fixed between the top frame 131 and the bottom frame 132, and the polished rod 134 is slidably connected to the transmission seat 135; The transmission seat 135 can be moved into the gap between the bottom plate 111 and the bottom plate 121 through the notch 124; A first positioning probe 14 for positioning the transmission seat 135 is fixed on the bottom plate 111 and one of the cross bars 114; A control box 15 is fixed on the outer frame formed by the vertical rods 113 and the horizontal rods 114 .

[0025] It should be noted that when the plate material 3 is lifted by the lifting feeding mechanism 13, the rotation of the threaded rod 133 (the rotation of the threaded rod 133 is driven by a motor) drives the transmission seat 135 to move up and down, and the support block 136 on the transmission seat 135 can directly support the plate material 3 at the bottom. When the transmission seat 135 moves upward, the plate material 3 can be lifted to achieve continuous supply of the plate material 3. After a portion of the plate material 3 is used up, the transmission seat 135 needs to be moved from the notch 124 to below the chassis 121, and then the chassis 121 is rotated to update the plate material 3, while the transmission seat 135 will not cause any obstruction; The first positioning probe 14 is set for the transmission seat 135. There are two first positioning probes 14 distributed upper and lower. After the first positioning probe 14 located at the upper side detects the transmission seat 135, it is the highest position of the transmission seat 135. At this time, the transmission seat 135 cannot continue to rise; and the first positioning probe 14 located at the lower side monitors the lowest position of the transmission seat 135.

[0026] In the embodiments of the present invention, please refer to Figures 6 to 10 The mechanical arm structure 22 includes a base 221, which is horizontally rotatably mounted on the support frame 21, a first transmission arm 222 is vertically rotatably mounted on the base 221, a second transmission arm 223 is vertically rotatably mounted on the other end of the first transmission arm 222, and a mounting base 224 is vertically rotatably mounted on the other end of the second transmission arm 223.

[0027] Meanwhile, the loading and unloading mechanism 23 includes a connecting shaft 231, which is rotatably mounted on the mounting seat 224 in a horizontal direction, and a first frame rod 232 and a second frame rod 236 which are vertically distributed are fixed at the other end of the connecting shaft 231; A vacuum pump 233 is fixed on the first support rod 232 near the other end. A first mounting plate 235 is fixed on the first support rod 232. A suction cup 234 connected to the vacuum pump 233 is installed at the lower end of the first mounting plate 235. A second mounting plate 237 is fixed on the second frame rod 236, and a plurality of annularly distributed electromagnetic suction heads 238 are fixed on the lower end of the second mounting plate 237; A plurality of second positioning probes 239 distributed in an annular shape are fixed to the lower ends of the first mounting plate 235 and the second mounting plate 237 near the edges.

[0028] It should be noted that: in the mechanical arm structure 22, the base 221 can rotate horizontally, and the first transmission arm 222, the second transmission arm 223 and the mounting seat 224 can all rotate in the vertical direction, which has very high flexibility. At the same time, the loading and unloading mechanism 23 is installed on the mounting seat 224, so that the loading and unloading mechanism 23 can be accurately adjusted; When loading and unloading, the suction cup 234 firstly absorbs the sheet material 3 on the storage rack 12, and then the mechanical arm structure 22 is used to transfer it. When it reaches the position of the stamping processing center, the electromagnetic suction head 238 is used to magnetically fix and take out the stamped workpiece, and then the position can be adjusted by rotating the connecting shaft 231, that is, the suction cup 234 enters the stamping processing center, so that the sheet material 3 can be placed in the stamping area; and the electromagnetic suction head 238 is transferred to the side position, so that a container can be placed at this position, and then the stamped workpiece is transferred to the container to complete the loading and unloading operation; A second positioning probe 239 is provided on both the first mounting disk 235 and the second mounting disk 237; the second positioning probe 239 on the first mounting disk 235 is mainly used for positioning the plate raw material 3 when it is placed, that is, when the plate raw material 3 is transferred to the stamping area, it is ensured that the plate raw material 3 and the stamping boss are concentrically corresponding; and the second positioning probe 239 on the second mounting disk 237 is mainly used for the detection of the finished workpiece, that is, the concentric detection of the finished workpiece and the stamping boss. If it is in a concentric state, then the finished product is a qualified product, and if it is not concentric, it is a defective product, and then the qualified products and the defective products need to be collected separately.

[0029] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An auxiliary loading and unloading device for stamping a bearing protection frame, comprising a material storage and feeding unit (1) and a material loading and unloading unit (2), wherein plate raw materials (3) are stacked in the material storage and feeding unit (1), and characterized in that: The loading and unloading unit (2) is located between the material storage and feeding unit (1) and the stamping processing center; The loading and unloading unit (2) comprises: A support frame (21), wherein the support frame (21) is fixed to the ground surface; A mechanical arm structure (22), wherein the mechanical arm structure (22) is rotatably mounted on the support frame (21); A loading and unloading mechanism (23), the loading and unloading mechanism (23) being rotatably mounted on the mechanical arm structure (22), the loading and unloading mechanism (23) comprising a first mounting plate (235) and a second mounting plate (237), a suction cup (234) being mounted at the lower end of the first mounting plate (235) for sucking the plate material (3) in the material storage and feeding unit (1) by means of negative pressure; and a plurality of annularly distributed electromagnetic suction heads (238) being mounted at the lower end of the second mounting plate (237) for sucking the workpiece after stamping in the stamping machining center by means of magnetic suction; A plurality of second positioning probes (239) distributed in an annular shape are fixed to positions close to the edges of the lower ends of the first mounting plate (235) and the second mounting plate (237).

2. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 1 is characterized in that: The mechanical arm structure (22) comprises a base (221), the base (221) being mounted on a support frame (21) so as to be rotatable in a horizontal direction, a first transmission arm (222) being mounted on the base (221) so as to be rotatable in a vertical direction, a second transmission arm (223) being mounted on the other end of the first transmission arm (222) so as to be rotatable in a vertical direction, and a mounting seat (224) being mounted on the other end of the second transmission arm (223) so as to be rotatable in a vertical direction.

3. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 1 is characterized in that: The loading and unloading mechanism (23) further comprises a connecting shaft (231), the connecting shaft (231) being mounted on the mounting seat (224) so ​​as to be rotatable in the horizontal direction, and a first frame rod (232) and a second frame rod (236) being fixed vertically to the other end of the connecting shaft (231); A vacuum pump (233) is fixed on the first rack rod (232) at a position close to the other end, the first mounting plate (235) is also fixed on the first rack rod (232), and the vacuum pump (233) is connected to the suction cup (234); The second mounting plate (237) is fixed on the second rack rod (236).

4. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 1 is characterized in that: The material storage and feeding unit (1) comprises a base frame (11), a material storage frame (12) and a lifting and feeding mechanism (13).

5. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 4 is characterized in that: The base frame (11) comprises a bottom plate (111), a plurality of supporting legs (112) are fixed at the lower end of the bottom plate (111), a plurality of vertical rods (113) distributed in a square shape are fixed at the upper end of the bottom plate (111), a horizontal rod (114) is fixed between adjacent vertical rods (113) and near the top, the vertical rods (113) and the horizontal rods (114) form an outer frame, and an auxiliary rod (115) is fixed between two of the vertical rods (113) via an angle bracket.

6. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 4 is characterized in that: The material storage rack (12) comprises a bottom plate (121) and a top plate (122) located inside the outer frame, distributed up and down and arranged concentrically, a certain distance being provided between the bottom plate (122) and the bottom plate (111), and a rotatable fixed shaft (123) being connected between the bottom plate (121) and the top plate (122); The bottom plate (121) is provided with a plurality of annularly distributed notches (124), and the plate material (3) is placed on the bottom plate (121) and corresponds to the notches (124); the top plate (122) is provided with through holes (125) corresponding in position and number to the notches (124), and the diameter of the through holes (125) is larger than the diameter of the plate material (3), so that the plate material (3) can move along the through holes (125) to above the top plate (122); A plurality of groups of reinforcing rods (126) are also fixed between the bottom plate (121) and the top plate (122), and any group of reinforcing rods (126) are symmetrically arranged on both sides of the notch (124); A positioning plate frame (127) for supporting and positioning is also rotatably connected to the upper end of the fixed shaft (123), and the positioning plate frame (127) is fixed on the crossbar (114).

7. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 4 is characterized in that: The lifting and feeding mechanism (13) comprises a top frame (131) fixed on the auxiliary rod (115) and a bottom frame (132) fixed on the bottom plate (111); a threaded rod (133) is rotatably connected between the top frame (131) and the bottom frame (132); a transmission seat (135) is threadedly connected to the threaded rod (133); a support block (136) for supporting the plate material (3) is fixed to the transmission seat (135); A polished rod (134) is also fixed between the top frame (131) and the bottom frame (132), and the polished rod (134) is slidably connected to a transmission seat (135).

8. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 7 is characterized in that: The transmission seat (135) can be moved into the gap between the bottom plate (111) and the bottom plate (121) through the notch (124).

9. The auxiliary loading and unloading device for stamping a bearing protection frame according to claim 5, characterized in that: A first positioning probe (14) for positioning the transmission seat (135) is fixed on both the bottom plate (111) and one of the cross bars (114); A control box (15) is fixed on the outer frame formed by the vertical rod (113) and the horizontal rod (114).

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