Automatic edge rolling machine for bushing production

Abstract

The utility model provides an automatic edge rolling machine for bushing production, and relates to the field of bushing production equipment. The die set and the hydraulic cylinder are arranged on the outer side of the workbench, a storage frame used for storing blanks is arranged on the workbench, and the blanks are stacked in the vertical direction; a push rod of the hydraulic cylinder is connected with a bedplate, the mold group is arranged below the bedplate, and the hydraulic cylinder pushes the bedplate to move in the vertical direction and drives the mold to be assembled and opened; a material pushing plate and a driving mechanism are arranged on the workbench, and the driving mechanism drives the material pushing plate to be inserted into the bottom of the material storage frame. The edge rolling device has the effects of improving the edge rolling machining efficiency and improving the operation safety.

Description

Technical Field

[0001] The present application relates to the field of bushing production equipment, and in particular to an automatic rolling machine for bushing production. Background Art

[0002] Bushings are ring sleeves that act as cushions and are widely used in sliding parts of various machines, such as automobiles, motorcycles, printing presses, textile machines, agricultural and forestry machinery, etc.

[0003] At present, when processing the bushing, it is necessary to roll the rectangular sheet blank into a ring. The rolling process is mainly divided into three steps, namely the initial pre-bending, the secondary pre-bending and forming. The rolling device mainly includes a workbench, a hydraulic cylinder and a mold. When rolling the blank, the operator pushes the blank into the mold, moves away from the mold and controls the mold closing through the hydraulic cylinder.

[0004] However, this operation method requires many steps of manual intervention and has the problem of low rolling efficiency. In order to improve the rolling efficiency, the operator will try to shorten the connection and transition time between the steps. However, after the operator operates quickly for a period of time, the probability of operating errors will increase significantly, posing a major safety hazard. Utility Model Content

[0005] In order to improve the problems of low efficiency and great safety hazards caused by manual loading, the present application provides an automatic rolling machine for bushing production.

[0006] The present application provides an automatic rolling machine for bushing production, which adopts the following technical solution:

[0007] An automatic rolling machine for bushing production comprises a workbench and a mold group and a hydraulic cylinder arranged on the outside of the workbench. The workbench is provided with a storage rack for storing blanks, and the blanks are stacked in a vertical direction. A table is connected to the push rod of the hydraulic cylinder, and the mold group is arranged under the table. The hydraulic cylinder pushes the table to move in the vertical direction and drives the mold combination and mold opening. A push plate and a driving mechanism are provided on the workbench, and the driving mechanism drives the push plate to insert into the bottom of the storage rack.

[0008] By adopting the above technical solution, under the driving action of the driving mechanism on the push plate, the blank to be rolled can be automatically pushed into the die group and rolled without the need for manual pushing of the blank, which improves operating efficiency and reduces safety risks.

[0009] Optionally, the material storage rack includes a pair of vertical plates, and the blank is adaptively stored between the pair of vertical plates. A limiting groove is provided on the side of the vertical plate facing the driving mechanism, and the limiting groove extends in a horizontal direction. A bolt is provided in the limiting groove, and an extension direction of the bolt is perpendicular to the extension direction of the limiting groove. The outer edge of the blank is in contact with the bolt.

[0010] By adopting the above technical solution, a pair of vertical plates form a clamping effect on the blanks, ensuring that the blanks can be neatly stacked and that the push plate can reliably push the blanks into the mold group; the bolts can slide in the limit grooves, ensuring that the storage rack can store blanks of different widths.

[0011] Optionally, a clamping plate is provided on the side of the vertical plate facing the blank, and a plurality of limiting holes are provided on the clamping plate. The bolt slides in the limiting groove and is adaptively screwed into any of the limiting holes.

[0012] By adopting the above technical solution, the bolt and the limiting hole are threadedly connected, and the position of the clamping plate can be adjusted by controlling the screw-in amount of the bolt, thereby ensuring that blanks of different lengths can be stored in the storage rack.

[0013] Optionally, a sensor is provided on the clamping plate, and the sensor is used to collect the movement data of the blank and transmit it to the control end, and the control end controls the movement of the hydraulic cylinder and the driving mechanism.

[0014] By adopting the above technical solution, when the push plate pushes a piece of blank into the mold group and resets, the remaining blank will automatically fall down, and the sensor collects and transmits this signal, which facilitates the hydraulic cylinder to perform mold closing operation in time, thereby improving the overall continuity.

[0015] Optionally, the bottom of the push plate is in contact with the top of the workbench, and the top of the push plate is located below the sensor.

[0016] By adopting the above technical solution, there is no interference between the push plate and the sensor, ensuring that both are in a stable working state.

[0017] Optionally, a slide groove is provided on the workbench, the extension direction of the slide groove is consistent with the moving direction of the blank, a slider is provided in the slide groove, the push plate is connected to the slider, the lower part of the slider extends to the bottom of the workbench, and the driving mechanism drives the slider to slide in the slide groove.

[0018] By adopting the above technical solution, the cooperation between the slide groove and the slider can improve the accuracy of the movement of the push plate, ensuring that the push plate can reliably push the blank into the die set under the drive of the driving mechanism.

[0019] Optionally, the driving mechanism includes a cylinder, the cylinder is connected to the side wall of the workbench, a push rod of the cylinder is connected to the slider, and a pushing direction of the push rod of the cylinder is consistent with an extending direction of the slide groove.

[0020] By adopting the above technical solution, the cylinder can drive the push plate quickly and stably.

[0021] Optionally, the driving mechanism includes a first airbag and a second airbag, both of which are cylindrical, and the first airbag and the second airbag are connected by an air pipe; the first airbag is arranged on the top of the workbench and extends in the vertical direction, and a pressing plate is provided on the side of the table plate facing the workbench, one end of the second airbag is connected to the workbench, and the other end of the second airbag is connected to the pressing plate, and the pressing plate is used to compress the first airbag; the second airbag is arranged at the bottom of the workbench and extends in the horizontal direction, one end of the second airbag is connected to the workbench, and the other end of the second airbag is connected to the slider.

[0022] By adopting the above technical solution, when the table is pressed down to close the mold, the gas in the first airbag is pressed into the second airbag, the second airbag expands and pushes the push plate to load the material. After the rolling is completed, the table moves up and the gas in the second airbag is drawn back to the first airbag to achieve the reset of the push plate.

[0023] Optionally, a vertical shell is provided on one side of the workbench close to the table top, the first airbag is provided in the vertical shell, a notch extending in a vertical direction is provided on the outer wall of the vertical shell, and the pressing sheet extends to the inner side of the vertical shell through the notch; a horizontal shell is also provided at the bottom of the workbench, the second airbag is provided in the horizontal shell, and the slider is located on the outer side of the horizontal shell.

[0024] By adopting the above technical solution, the vertical shell can limit the first airbag, ensuring that the first airbag can be compressed and reset along its own axial direction; the horizontal shell can limit the second airbag, ensuring that the second airbag can be compressed and reset along its own axial direction.

[0025] In summary, this application has the following beneficial effects:

[0026] 1. The driving mechanism pushes the push plate on the workbench, which pushes the blank to ensure that the blank can enter the die set accurately and quickly, realize automatic loading, and do not need manual loading, which improves processing efficiency and operation safety.

[0027] 2. The sensor collects the movement data of the blanks in the storage rack, which makes it easier for the control end to control the movement of the hydraulic cylinder and the drive mechanism, improves the continuity of the loading and mold closing process, and effectively improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic three-dimensional diagram of embodiment 1;

[0029] Figure 2 is a reference diagram of the assembly state of the driving mechanism in the first embodiment;

[0030] Figure 3 is a schematic three-dimensional diagram of the second embodiment;

[0031] Figure 4 is a reference diagram of the assembly state of the driving mechanism in the second embodiment;

[0032] Figure 5 is a schematic perspective view of a first airbag and a second airbag;

[0033] In the figure: 1. workbench; 11. slide; 12. slider; 2. mold set; 3. hydraulic cylinder; 31. table; 32. pressing sheet; 4. blank; 5. storage rack; 51. vertical plate; 510. limiting groove; 52. bolt; 53. clamping plate; 531. limiting hole; 532. sensor; 6. push plate; 7. driving mechanism; 71. cylinder; 72. first airbag; 720. air pipe; 73. second airbag; 74. vertical shell; 740. notch; 75. horizontal shell. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] An embodiment of the present application provides an automatic rolling machine for bushing production.

[0036] Embodiment 1:

[0037] Figure 1 is a schematic three-dimensional diagram of the first embodiment, Figure 2 1 is a reference diagram of the assembly state of the driving mechanism in the first embodiment. Figure 1 and Figure 2 An automatic rolling machine for bushing production includes a workbench 1, a mold group 2 is arranged on the outside of the workbench 1, a hydraulic cylinder 3 is arranged above the mold group 2, a push rod of the hydraulic cylinder 3 is connected with a table plate 31, the hydraulic cylinder 3 pushes the table plate 31 to realize the mold closing and mold opening of the mold group 2, and the mold group 2 has a pre-bending mold and a rounding mold. The plate-shaped blank 4 is first pre-bent by the pre-bending mold, and then rolled into a tube by the rounding mold, so that the rolling accuracy is higher.

[0038] A storage rack 5 for storing blanks 4 is provided on the top of the workbench 1. Several blanks 4 are placed from the top of the storage rack 5 and stacked in the vertical direction. The storage rack 5 includes a pair of vertical plates 51 and a pair of clamping plates 53. The pair of vertical plates 51 are arranged at intervals. A clamping plate 53 is provided on the opposite side of the pair of vertical plates 51. The clamping plate 53 and the vertical plates 51 fit each other. A limiting groove 510 is provided on the vertical plate 51. One end of the limiting groove 510 is connected to the side of the vertical plate 51 facing the workbench 1. A bolt 52 is provided in the limiting groove 510. The bolt 52 can slide directly into the limiting groove 510 from the outside and slide in the limiting groove 510. A plurality of limiting holes 531 are provided on the clamping plate 53. The arrangement direction of the plurality of limiting holes 531 is consistent with the extension direction of the limiting groove 510. When the bolt 52 slides in the limiting groove 510, it can be threadedly connected with any limiting hole 531, and the bolt 52 can maintain a horizontal state. By the bolt 52 cooperating with different limiting holes 531 and the bolt 52 sliding and fixing in the limiting groove 510, the horizontal position of the clamping plate 53 can be adjusted, so that the storage rack can accommodate blanks 4 of different widths. By screwing nuts on the bolt 52 and on both sides of the vertical plate 51, the bolt 52 can push and limit the vertical plate 51, so that the storage rack can accommodate blanks 4 of different lengths.

[0039] The workbench 1 is provided with a chute 11, the extension direction of which is consistent with the moving direction of the blank 4, and a push plate 6 is provided on the top of the chute 11, which fits the top of the workbench 1, and a slider 12 is provided in the chute 11, the top of which is connected to the bottom of the push plate 6, and the bottom of which extends to the bottom of the workbench 1. A driving mechanism 7 is also provided on the workbench 1, which drives the slider 12 to slide in the chute 11, thereby driving the push plate 6 to push the blank 4 located at the bottom of the storage rack into the mold set 2, avoiding the defects of low processing efficiency and great safety hazards caused by the use of manual pushing.

[0040] See also Figure 1 Furthermore, a sensor 532 is provided on any vertical plate 51, and the sensor 532 is used to collect the movement data of the blank 4. Specifically, when the push plate 6 pushes the blank 4 into the mold group 2, the push plate 6 is at the position of the blank 4 in the storage rack. Since the push plate 6 has the same thickness as the blank 4, at this time, the other blanks 4 will not move. When the blank 4 in the mold group 2 is processed and the hydraulic cylinder 3 drives the table 31 to open the mold, the push plate 6 is reset. At this time, the other blanks 4 in the storage rack will move downward to fill the position in turn, and the falling action of the blank 4 will be recognized by the sensor 532. The sensor 532 transmits this signal to the control end, and the control end can control the driving mechanism 7 to push the push plate 6 again and control the hydraulic cylinder 3 to press the table 31 down within a reasonable interval time, which effectively improves the degree of automation and significantly improves the processing efficiency.

[0041] The distance between the bottom of the sensor 532 and the top of the workbench 1 is not less than the thickness of the push plate 6. In this way, when the push plate 6 is inserted into the storage rack and pushes the blank 4, the push plate 6 will not interfere with the sensor 532, thereby ensuring that the sensor 532 and the push plate 6 are both in a stable working state.

[0042] The driving mechanism 7 is a cylinder 71, which is arranged on the side wall of the workbench 1. The push rod of the cylinder 71 is connected to the lower part of the slider 12. The moving direction of the push rod of the cylinder 71 is parallel to the extension direction of the slide groove 11. In this way, under the push of the cylinder 71, the slider 12 can slide smoothly in the slide groove 11, thereby driving the push plate 6 to push the blank 4 to realize automatic loading.

[0043] Embodiment 2:

[0044] Figure 3 is a schematic three-dimensional diagram of the second embodiment, Figure 4 2 is a reference diagram of the assembly state of the drive mechanism in the second embodiment. Figure 3 and Figure 4 The difference between this embodiment and the first embodiment is that the driving mechanism 7 includes a first airbag 72 and a second airbag 73, the first airbag 72 and the second airbag 73 are connected through an air pipe 720, and the first airbag 72 and the second airbag 73 are both columnar, that is, the first airbag 72 and the second airbag 73 can only expand or contract in the axial direction. A horizontal shell 75 is provided at the bottom of the workbench 1, and a vertical shell 74 is provided at the top of the workbench 1. The horizontal shell 75 is arranged away from the storage rack, and the vertical shell 74 is arranged close to the table 31.

[0045] Figure 5 is a schematic perspective view of the first airbag and the second airbag. Figure 5 Combined with Figure 3 The first airbag 72 is disposed in the horizontal shell 75, one end of the first airbag 72 is connected to the workbench 1, and the other end of the first airbag 72 is connected to the side wall of the slider 12. The slider 12 is located outside the horizontal shell 75. When the first airbag 72 expands, it will extend to the outside of the horizontal shell 75 along the axial direction of the horizontal shell 75. The second airbag 73 is disposed in the vertical shell 74, and a pressing sheet 32 ​​is welded on the table 31. One end of the second airbag 73 is connected to the workbench 1, and the other end of the second airbag 73 is connected to the pressing sheet 32. A notch 740 is provided on the side of the vertical shell 74 facing the table 31. The pressing sheet 32 ​​extends to the inside of the vertical shell 74 through the notch 740 and is connected to the second airbag 73. The contraction and expansion of the second airbag 73 are both limited to the inside of the vertical shell 74.

[0046] In the initial state, the platen 31 is away from the mold set 2 and the push plate 6 is away from the storage rack, so that the first airbag 72 is in an extended state and the second airbag 73 is in a compressed state. The hydraulic cylinder 3 drives the platen 31 to move downward, and the mold set 2 will be closed only after the platen 31 moves down a certain distance. In this way, within this distance, the pressing sheet 32 ​​will move down synchronously with the platen 31 and form a pressing effect on the first airbag 72, so that the gas in the first airbag 72 is pressed into the second airbag 73, and then the second airbag 73 expands and forms a pushing effect on the push plate 6 to realize the loading operation. After the loading is completed, the platen 31 continues to move down to realize the closing of the mold set 2.

[0047] See also Figure 3 and Figure 5 After the rolling process is completed, the hydraulic cylinder 3 drives the platen 31 to reset. The pressing sheet 32 ​​will pull the first airbag 72 to reset during the reset process. The first airbag 72 will draw the gas in the second airbag 73 back into the first airbag 72 during the reset process. In this way, the push plate 6 can be reset, so as to perform the rolling process on the next blank 4. The first airbag 72 and the second airbag 73 are both elastic, that is, after the first airbag 72 and the second airbag 73 are compressed or expanded, they can automatically recover. In this way, when the pressing sheet 32 ​​moves upward, under the pulling action of the pressing sheet 32, the volume of the second airbag 73 will gradually increase, thereby realizing the gas withdrawal and the reset of the push plate 6. The setting of the horizontal shell 75 and the vertical shell 74 ensures that the second airbag 73 and the first airbag 72 can both extend and contract in a straight line direction, thereby ensuring the pushing effect on the push plate 6.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic rolling machine for bushing production, characterized in that: It comprises a workbench (1), a die set (2) and a hydraulic cylinder (3) arranged outside the workbench (1), wherein a material storage rack (5) for storing blanks (4) is provided on the workbench (1), and the blanks (4) are stacked in a vertical direction; A push rod of the hydraulic cylinder (3) is connected to a table plate (31), the mold group (2) is arranged below the table plate (31), and the hydraulic cylinder (3) pushes the table plate (31) to move in a vertical direction and drives the mold group (2) to close and open the mold; The workbench (1) is provided with a push plate (6) and a driving mechanism (7), and the driving mechanism (7) drives the push plate (6) to be inserted into the bottom of the material storage rack (5).

2. The automatic rolling machine for bushing production according to claim 1, characterized in that: The material storage rack (5) comprises a pair of vertical plates (51), and the blank (4) is adaptively stored between the pair of vertical plates (51). A limiting groove (510) is provided on the side of the vertical plate (51) facing the driving mechanism (7), and the limiting groove (510) extends in a horizontal direction. A bolt (52) is provided in the limiting groove (510), and the extension direction of the bolt (52) is perpendicular to the extension direction of the limiting groove (510). The outer edge of the blank (4) contacts the bolt (52).

3. The automatic rolling machine for bushing production according to claim 2, characterized in that: A clamping plate (53) is provided on the side of the vertical plate (51) facing the blank (4), and a plurality of limiting holes (531) are provided on the clamping plate (53). The bolt (52) slides in the limiting groove (510) and is adaptively screwed into any of the limiting holes (531).

4. The automatic rolling machine for bushing production according to claim 3, characterized in that: The clamping plate (53) is provided with a sensor (532), and the sensor (532) is used to collect the movement data of the blank (4) and transmit it to the control end, and the control end controls the movement of the hydraulic cylinder (3) and the driving mechanism (7).

5. The automatic rolling machine for bushing production according to claim 4, characterized in that: The bottom of the push plate (6) is in contact with the top of the workbench (1), and the top of the push plate (6) is located below the sensor (532).

6. The automatic rolling machine for bushing production according to claim 4, characterized in that: The workbench (1) is provided with a slide groove (11), the extension direction of the slide groove (11) is consistent with the moving direction of the blank (4), a slider (12) is provided in the slide groove (11), the push plate (6) is connected to the slider (12), the lower part of the slider (12) extends to the bottom of the workbench (1), and the driving mechanism (7) drives the slider (12) to slide in the slide groove (11).

7. The automatic rolling machine for bushing production according to claim 6, characterized in that: The driving mechanism (7) comprises a cylinder (71), the cylinder (71) is connected to the side wall of the workbench (1), a push rod of the cylinder (71) is connected to the slider (12), and a pushing direction of the push rod of the cylinder (71) is consistent with an extending direction of the slide groove (11).

8. The automatic rolling machine for bushing production according to claim 6, characterized in that: The driving mechanism (7) comprises a first airbag (72) and a second airbag (73) both of which are cylindrical, and the first airbag (72) and the second airbag (73) are connected via an air pipe (720); The first airbag (72) is arranged on the top of the workbench (1) and extends in the vertical direction; a pressing sheet (32) is arranged on the side of the table plate (31) facing the workbench (1); one end of the second airbag (73) is connected to the workbench (1); the other end of the second airbag (73) is connected to the pressing sheet (32); and the pressing sheet (32) is used to compress the first airbag (72); The second airbag (73) is arranged at the bottom of the workbench (1) and extends in the horizontal direction; one end of the second airbag (73) is connected to the workbench (1), and the other end of the second airbag (73) is connected to the slider (12).

9. The automatic rolling machine for bushing production according to claim 8, characterized in that: A vertical shell (74) is provided on one side of the workbench (1) close to the table plate (31); the first airbag (72) is arranged in the vertical shell (74); a notch (740) extending in a vertical direction is provided on the outer wall of the vertical shell (74); the pressing sheet (32) extends to the inner side of the vertical shell (74) through the notch (740); A horizontal shell (75) is also provided at the bottom of the workbench (1), the second airbag (73) is arranged in the horizontal shell (75), and the slider (12) is located outside the horizontal shell (75).

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