A vertical rotary swaging machine

Abstract

The present invention relates to the technical field of machining, and in particular to a vertical rotary swaging machine, which mainly consists of an upper beam, a base and columns. The upper end of the base is connected to the upper beam through the columns to form a frame. A rotary swaging main body for performing rotary swaging on the workpiece on the base is slidably arranged on the columns. The upper beam is provided with a hydraulic cylinder for driving the rotary swaging main body to lift so as to apply a vertical swaging pressure to the workpiece. A blank pushing assembly is movably arranged on the base. When the hydraulic cylinder drives the rotary swaging main body to reset and rise, the blank pushing assembly is used to rise synchronously with the rotary swaging main body to push the workpiece away from the base, solving the problems that the hydraulic cylinder of the existing vertical rotary swaging machine is arranged at the bottom of the frame, resulting in high failure rate and high manufacturing cost.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and particularly to a vertical rotary forging machine.

Background Art

[0002] In the existing vertical rotary forging machine at present, a rotary forging machine is fixedly arranged on the upper part of the frame, and a hydraulic cylinder is installed on the lower part. The hydraulic cylinder is used to drive a backing plate for placing a workpiece to rise, and then after the backing plate is attached to the swing head of the rotary forging machine, the swing head is used to perform rotary forging on the workpiece. Its main disadvantages are that the hydraulic cylinder for driving the workpiece to rise is installed below the frame. Due to the extremely poor working environment of the forging process, the hydraulic cylinder of its hydraulic power is very prone to failure, and the manufacturing cost is high.

Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a vertical rotary forging machine, which solves the problems of high failure rate and high manufacturing cost existing in the existing vertical rotary forging machine where the hydraulic cylinder is arranged at the bottom of the frame.

[0004] To solve the above technical problem, the present invention adopts the following technical solution: A vertical rotary forging machine mainly consists of an upper beam, a base and columns. The upper end of the base is connected to the upper beam through the columns to form a frame. A rotary forging main body for performing rotary forging on the workpiece on the base is slidably arranged on the columns. The upper beam is provided with a hydraulic cylinder for driving the rotary forging main body to lift and lower so as to apply a vertical forging pressure to the workpiece. A blanking component is movably arranged on the base. When the hydraulic cylinder drives the rotary forging main body to reset and rise, the blanking component is used to synchronously rise with the rotary forging main body to lift the workpiece off the base.

[0005] In the above vertical rotary forging machine, the blanking component includes a movable rod movably arranged in the base and a pull rod movably connected to the rotary forging main body to drive the movable rod to extend out of the base when the rotary forging main body resets and rises.

[0006] In the above vertical rotary forging machine, a first limiting member is arranged at an axially adjustable position at the upper end of the pull rod. When the rotary forging main body resets and rises, it abuts against the first limiting member to drive the pull rod to rise.

[0007] In the above vertical rotary forging machine, the movable rod includes a blanking cross beam connected to the lower end of the pull rod and a ejector rod arranged on the blanking cross beam. A through hole for the ejector rod to pass through is provided on the upper end surface of the base.

[0008] In the above vertical rotary forging machine, the base is provided with a cavity for the vertical movement of the movable rod. A second limiting member is arranged at an axially adjustable position at the lower end of the pull rod. The second limiting member abuts against the upper end surface of the base to adjust the maximum insertion depth of the movable rod in the cavity.

[0009] In the above-mentioned vertical rotary swaging machine, the swaging main body includes a machine shell connected to the telescopic end of the hydraulic cylinder, an eccentric shaft arranged inside the machine shell, a motor located on the machine shell, and a swaging head arranged at the lower end of the eccentric shaft. An inclined included angle with an angle within one to five degrees is formed between the center line of the eccentric shaft and the center line of the motor output shaft. The motor is used to drive the eccentric shaft to perform conical rotation with the center line of the motor output shaft as the rotation center line, thereby driving the swaging head to perform a swaging action.

[0010] In the above-mentioned vertical rotary swaging machine, the eccentric shaft is connected to the machine shell through a rotating mechanism. The rotating mechanism includes a first rotating component arranged at the upper end of the eccentric shaft and a second rotating component arranged at the lower end of the eccentric shaft. The first rotating component and the second rotating component cooperate to guide the eccentric shaft to perform conical rotation under the drive of the motor.

[0011] In the above-mentioned vertical rotary swaging machine, the first rotating component includes an eccentric bushing and a transmission flange that rotates synchronously with the motor output shaft. The eccentric bushing is connected to the transmission flange and has an eccentric cavity formed inside. The upper end of the eccentric shaft is rotatably arranged in the eccentric cavity through a bearing. The second rotating component includes a passive bushing rotatably arranged inside the machine shell. An installation hole is formed at the center of the passive bushing, and the lower end of the eccentric shaft is correspondingly rotatably inserted into the installation hole.

[0012] In the above-mentioned vertical rotary swaging machine, an anti-rotation disk that moves synchronously with the eccentric shaft is sleeved in the middle of the eccentric shaft. An eccentric sleeve is rotatably arranged on one side of the anti-rotation disk on the machine shell. The anti-rotation disk and the eccentric sleeve are connected through a key. One end of the key is rotatably connected in the eccentric hole of the eccentric sleeve, and the other end is inserted into the side wall of the anti-rotation disk, so as to maintain the connection between the eccentric sleeve and the anti-rotation disk when the eccentric shaft is driven, thereby preventing the eccentric shaft from self-rotating during conical rotation.

[0013] In the above-mentioned vertical rotary swaging machine, an installation groove is arranged on the side surface of the machine shell. The installation groove is used to accommodate the eccentric sleeve and limit the axial direction of the eccentric sleeve to prevent it from generating axial displacement when circumferentially rotating in the installation groove under the drive of the key.

[0014] Advantages of the present invention:

[0015] In the present invention, a rotary swaging main body for rotary swaging a workpiece is slidably disposed on a column of a frame, and a hydraulic cylinder disposed on an upper beam is used to drive the rotary swaging main body to perform a lifting action. Thus, while the rotary swaging main body performs horizontal rotary swaging on the workpiece, when the hydraulic cylinder drives the rotary swaging main body to descend, a vertical extrusion force is applied to a swing head, thereby increasing the rolling forming speed of the swing head on the workpiece. At the same time, the way of setting the hydraulic cylinder at the upper end of the frame to drive the rotary swaging main body to move up and down also solves the problems of high failure rate and high manufacturing cost of the hydraulic cylinder when the hydraulic cylinder is disposed at the lower end of the frame.

[0016] In the present invention, compared with a traditional vertical rotary swaging machine that sets a hydraulic cylinder at the bottom of the frame and uses the hydraulic cylinder disposed at the bottom to drive the workpiece to rise and cooperate with the swing head for rolling, in the present invention, the hydraulic cylinder is disposed at the upper end of the rotary swaging main body, and a vertical extrusion force is applied to the workpiece when the hydraulic cylinder drives the rotary swaging main body to descend. In this way, when processing the workpiece to provide the same vertical extrusion force, the self-weight of the rotary swaging main body will also provide a vertical pressure on the workpiece. At this time, the vertical force acting on the workpiece is equal to the self-weight of the rotary swaging main body plus the output force of the hydraulic cylinder. Compared with the traditional method that only relies on a hydraulic press to provide the vertical pressure of the swing head on the workpiece, the present invention can utilize the self-weight of the rotary swaging main body, thereby reducing the output pressure of the hydraulic press. Under the condition of providing the same rotary swaging pressure, the present invention can select a hydraulic cylinder with a smaller specification and pressure to complete the pressing requirement of the workpiece, effectively saving the equipment cost.

[0017] After the workpiece is rotary swaged and extruded by the rotary swaging main body, the workpiece often adheres tightly to the base. In the prior art, in order to prevent the workpiece from displacing during rotary swaging, a slot for accommodating the workpiece is opened on the base and other methods are used. After rolling, it is more difficult for the workpiece to be separated from the base, and it is also necessary to manually operate a clamp or other equipment to manually peel the workpiece from the base before the workpiece can be transferred and moved. The operation of the staff is complex and cumbersome.

[0018] In the present invention, a blanking component is disposed on the base, and when the blanking component rises synchronously with the hydraulic cylinder during its reset, the workpiece is jacked up and separated from the base. Thus, when the hydraulic cylinder resets, the separation between the workpiece and the base is completed synchronously, and the workpiece and the base can be quickly separated without the staff using other auxiliary tools, effectively reducing the production and processing steps and improving the processing efficiency of the equipment.

[0019] Further, the blanking component includes a movable rod movably disposed in the base and a pull rod movably connected to the rotary swaging main body to drive the movable rod to extend out of the base when the rotary swaging main body resets and rises. Through the cooperation of the pull rod and the movable rod, when the hydraulic cylinder drives the rotary swaging main body to reset and rise, the pull rod drives the movable rod to lift the workpiece on the base, and the unloading work of the workpiece can be completed without using other auxiliary tools, effectively improving the production efficiency.

[0020] Further, a first limiting member is provided at the upper end of the pull rod in an axially adjustable manner. When the rotary swaging main body resets and rises, it abuts against the first limiting member to drive the pull rod to rise. By setting the first limiting member at different positions on the pull rod, the time when the hydraulic press triggers the action of the ejector assembly when driving the rotary swaging main body to reset and rise to different positions can be changed. That is, the longer the distance of the pull rod reserved above the first limiting member, the shorter the distance of the pull rod below the first limiting member. The shorter the distance of the lower end of the pull rod, the closer the distance between the ejector assembly at its lower end and the bottom of the rotary swaging main body. Therefore, when the hydraulic cylinder drives the rotary swaging main body to rise, it can drive the ejector assembly to extend from the backing plate faster to eject the workpiece. In this way, when performing rotary swaging operations on some small workpieces, by using the first limiting member to change the distance between the ejector assembly and the rotary swaging main body, it is possible to drive the ejector assembly to eject the workpiece without resetting the rotary swaging main body to the extreme position, meeting the processing requirements of different workpieces.

[0021] Further, the movable rod includes a blanking cross beam connected to the lower end of the pull rod and a push rod provided on the blanking cross beam. A through hole for the push rod to pass through is provided on the upper end surface of the base. After the push rod passes through the through hole, it can extend out of the base, thereby ejecting the workpiece to separate it from the base. The blanking cross beam facilitates the connection between the push rod and the pull rod, so that when the pull rod rises, it drives the push rod to extend out of the through hole.

[0022] Further, the base is provided with a cavity for the vertical movement of the movable rod. A second limiting member is provided at the lower end of the pull rod in an axially adjustable manner. The second limiting member abuts against the upper end surface of the base to adjust the maximum insertion depth of the movable rod in the cavity. By setting the second limiting member at different positions on the pull rod, after the second limiting member abuts against the base, it can limit the further downward movement of the pull rod into the base, and thus can change the initial position of the blanking cross beam in the base. When processing workpieces of different specifications, by changing the vertical initial height of the blanking cross beam in the cavity, the time when the pull rod drives the push rod on the blanking cross beam to extend out of the base can be adjusted.

[0023] Further, the rotary swaging main body includes a machine shell connected to the telescopic end of the hydraulic cylinder, an eccentric shaft provided in the machine shell, a motor located on the machine shell, and a swaging head provided at the lower end of the eccentric shaft. An inclined angle within 1 to 5 degrees is formed between the center line of the eccentric shaft and the center line of the output shaft of the motor. The motor is used to drive the eccentric shaft to perform conical rotation with the center line of the output shaft of the motor as the rotation center line, thereby driving the swaging head to perform rotary swaging operations. By using a single eccentric shaft inclined in the machine shell and then driving the eccentric shaft to perform conical rotation around the center line of the output shaft of the motor by the motor, the swaging head can be driven to perform rotary swaging operations. Its driving transmission structure for the swaging head is simpler and more convenient for driving and transmitting the swaging head.

[0024] Furthermore, the eccentric shaft is connected to the machine housing through a rotating mechanism. The rotating mechanism includes a first rotating component disposed at the upper end of the eccentric shaft and a second rotating component disposed at the lower end of the eccentric shaft. The first rotating component and the second rotating component cooperate to guide the eccentric shaft to perform conical rotation under the drive of the motor. The first rotating component and the second rotating component facilitate cooperation with the motor to guide the eccentric shaft seat to perform conical rotation.

[0025] Furthermore, the first rotating component includes an eccentric bushing and a transmission flange that rotates synchronously with the motor output shaft. The eccentric bushing is connected to the transmission flange and has an eccentric cavity formed therein. The upper end of the eccentric shaft is rotatably disposed in the eccentric cavity through a bearing. The second rotating component includes a passive bushing rotatably disposed in the machine housing. An installation hole is formed at the center of the passive bushing. The lower end of the eccentric shaft is correspondingly rotatably inserted into the installation hole. By inserting the upper end of the eccentric shaft into the eccentric cavity of the eccentric bushing, the eccentric shaft is inclinedly disposed in the machine housing, and when the eccentric bushing rotates under the drive of the motor, it can drive the eccentric shaft to generate conical rotation around the center line of the motor output shaft.

[0026] Furthermore, an anti-rotation disc that moves synchronously with the eccentric shaft is sleeved on the middle part of the eccentric shaft. An eccentric sleeve is rotatably disposed on one side of the anti-rotation disc on the machine housing. The anti-rotation disc and the eccentric sleeve are connected by a key. One end of the key is rotatably connected to the eccentric hole of the eccentric sleeve, and the other end is inserted into the side wall of the anti-rotation disc, so as to use the key to maintain the connection between the eccentric sleeve and the anti-rotation disc during the transmission of the eccentric shaft, thereby preventing the eccentric shaft from self-rotating during conical rotation. The settings of the anti-rotation disc, the key, and the eccentric sleeve are to ensure that when the eccentric shaft performs conical rotation, if it rotates self, it will drive the swing head to rotate self, and then when the swing head performs rotary swaging on the workpiece, the machining accuracy of the workpiece will deteriorate due to self-rotation.

[0027] Furthermore, an installation groove is provided on the side surface of the machine housing. The installation groove is used to receive the eccentric sleeve and limit the axial direction of the eccentric sleeve to prevent it from generating axial displacement when circumferentially rotating in the installation groove under the drive of the key. The installation groove facilitates the limiting and accommodation of the eccentric sleeve. When the eccentric shaft performs conical rotation, it synchronously drives the anti-rotation disc to move, and the key connected to the side surface of the anti-rotation disc will generate circumferential rotation or swing corresponding to the circumferential rotation trajectory of the eccentric sleeve. One end of the key is rotatably connected to the eccentric hole of the eccentric sleeve, and the other end is connected to the anti-rotation disc. Therefore, when the key moves, it will drive the eccentric sleeve to circumferentially rotate in the installation groove. In order to prevent the two ends of the key from detaching from the eccentric sleeve or the anti-rotation disc when the eccentric sleeve is driven to move by the key, so as to ensure the self-rotation limitation of the anti-rotation disc by the key, the installation groove can be used to limit the axial displacement of the eccentric sleeve.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and the accompanying drawings.

Description of the Drawings

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] Figure 1 It is the main structural view of the embodiment of the present invention;

[0031] Figure 2 It is the top structural view of the embodiment of the present invention;

[0032] Figure 3 It is the schematic diagram of the internal structure of the casing of the embodiment of the present invention.

[0033] Reference numerals:

[0034] 100 Frame, 101 Upper beam, 102 Base, 103 Column, 110 Hydraulic cylinder, 120 Installation groove;

[0035] 200 Casing, 201 Motor, 210 Transmission flange, 220 Eccentric bushing, 230 Eccentric shaft, 240 Anti-rotation plate, 241 Card slot, 250 Eccentric sleeve, 251 Key, 260 Driven bushing, 270 Bearing, 280 Swing head;

[0036] 300 Connecting seat, 310 Pull rod, 311 First limiting part, 312 Second limiting part, 320 Stripping cross beam, 321 Stripping rod;

[0037] 400 Cushion plate.

Specific Embodiments

[0038] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise clearly defined.

[0041] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0043] Referring to Figure 1 and 3 , a vertical rotary swaging machine proposed in an embodiment of the present invention includes a frame 100. The frame 100 is generally in a cuboid structure and includes a base 102, columns 103 and an upper beam 101. The upper end of the base 102 is connected to the upper beam 101 through the columns 103. The columns 103 are arranged in a rectangle between the base 102 and the upper beam 101. An accommodating space is formed among its four columns 103. A rotary swaging main body for horizontally swaging a workpiece by the rotary swaging machine is arranged in the accommodating space and can slide along the columns 103 in the accommodating space. The upper end of the rotary swaging main body is connected to the upper beam 101 through a hydraulic cylinder 110. Further, the rotary swaging main body is driven by the hydraulic cylinder 110 to rise or fall along the columns 103 so as to perform rotary swaging processing on the workpiece on the base 102. A cushion plate 400 is provided at the upper end of the base 102 for placing the workpiece.

[0044] In the prior art, there are many compositional structures of the rotary swaging main body. In this embodiment, the rotary swaging main body includes a housing 200, a driver, an eccentric shaft 230, a first rotating member, a second rotating member, and a swaging head 280. A driver is provided at the upper end of the housing 200, and the driver is generally a motor 201 or a hydraulic motor. The eccentric shaft 230 is obliquely arranged in the housing 200. A swaging head 280 is provided at the lower end of the eccentric shaft 230 and located at the bottom of the housing 200. The upper and lower ends of the eccentric shaft 230 are respectively rotationally connected to the housing 200 through the first rotating member and the second rotating member so that it is obliquely arranged in the housing 200. At the same time, the eccentric shaft 230 is connected to the output end of the motor 201 through the first rotating member.

[0045] In the above embodiment, a single eccentric shaft 230 is obliquely arranged in the housing 200, and then the eccentric shaft 230 is driven by the motor 201 and the first rotating member to perform a conical rotation around the center line of the motor output shaft, so as to drive the swaging head 280 to perform a rotary swaging action. The driving and transmission structure for the swaging head 280 is simpler, which is convenient for driving and transmitting the swaging head 280.

[0046] In this embodiment, the housing 200 and the column 103 can be slidably connected to each other by a sliding block and a four-corner and eight-sided guide rail in a sliding fit manner.

[0047] Compared with the traditional vertical rotary swaging machine in which the hydraulic cylinder 110 is arranged at the bottom of the frame 100 and the workpiece is driven to rise by the extended hydraulic cylinder 110 at the bottom for rolling cooperation with the swaging head 280, in this embodiment, the hydraulic cylinder 110 is arranged at the upper end of the rotary swaging main body, and when the hydraulic cylinder 110 drives the rotary swaging main body to descend, the swaging head 280 is used to apply a vertical extrusion force to the workpiece. In this way, when processing the workpiece to provide the same vertical extrusion force, the self-weight of the rotary swaging main body will also provide a vertical pressure to the workpiece. At this time, the vertical force acting on the workpiece is equal to the self-weight of the rotary swaging main body plus the output force of the hydraulic cylinder 110. Compared with the traditional method that only relies on the hydraulic press to provide the vertical pressure of the swaging head 280 on the workpiece, the present invention can utilize the self-weight of the rotary swaging main body, thereby reducing the output pressure of the hydraulic press. Under the condition of providing the same swaging pressure, the present invention can select a hydraulic cylinder 110 with a smaller specification and pressure to complete the pressing requirement of the workpiece, effectively saving the equipment cost.

[0048] Specifically, refer to Figure 2, the first rotating member includes an eccentric bushing 220 and a transmission flange 210 that rotates synchronously with the output shaft of the motor 201. The upper end of the transmission flange 210 is connected to the output shaft of the motor 201, and the lower end of the transmission flange 210 is connected with an eccentric bushing 220. An eccentric cavity that deviates from its center is provided inside the eccentric bushing 220. The upper end of the eccentric shaft 230 is rotatably arranged in the eccentric cavity through a bearing 270. The second transmission part includes a passive bushing 260 rotatably arranged in the machine housing 200. An installation hole is provided at the center of the passive bushing 260. The lower end of the eccentric shaft 230 is correspondingly rotatably inserted into the installation hole. Thus, the upper end of the eccentric shaft 230 is inserted into the eccentric cavity, and the lower end is inserted into the installation hole. The extension line of the center line of the eccentric shaft 230 intersects with the center line of the output shaft of the motor 201 at point O. For the convenience of description, the line from point O to the center line of the output shaft of the motor 201 is called OA, and the line from the center line of the eccentric shaft 230 to point O is called OB. An inclined angle is formed between OA and OB. After the motor 201 starts and drives the transmission flange 210 to rotate, it drives the eccentric bushing 220 to rotate, and then causes the eccentric shaft 230 to generate a conical rotation with OA as the rotation center line and OB as the generatrix (the conical rotation of the eccentric shaft 230 with OB as the generatrix around OA as the rotation center line is actually a conical shape).

[0049] To prevent the anti-rotating plate 240 from swinging too much when the eccentric shaft 230 rotates in a conical shape and thus disengaging from the key 251, the inclined angle is limited within 1 - 5 degrees to limit the inclination angle of the eccentric shaft 230. Further, the situation where the anti-rotating plate 240 swings too much and disengages from the key 251 can be avoided, improving the motion stability of the device. At the same time, the problem that the inclination angle of the eccentric shaft 230 is too large, causing excessive vibration of the device during operation, is also avoided, making the device operate more smoothly.

[0050] Furthermore, the inclined angle is preferably within 2 - 3 degrees. While ensuring that the key 251 can stably drive the eccentric shaft 230 and the anti-rotating plate 240, the eccentric shaft 230 rotates relatively stably during conical rotation. With this angle setting, the eccentric shaft 230 can effectively drive the swing head 280 to perform a swing forging action. At the same time, the problems of excessive vibration and noise of the device during operation caused by too large an inclined angle are avoided, and the problem that the swing amplitude of the swing head 280 at the lower end of the eccentric shaft 230 is too small, resulting in a long swing forging processing time and inability to meet the normal swing forging pressing requirements, is also avoided.

[0051] In this embodiment, in order to increase the connection stability of the eccentric shaft 230 within the eccentric bushing 220, while also reducing the contact friction between the eccentric bushing 220 and the eccentric shaft 230 during rotation, and preventing the eccentric shaft 230 from self-rotating during conical rotation, a bearing 270 is installed between the upper end of the eccentric shaft 230 and the inner wall of the eccentric cavity. Similarly, a bearing 270 can be installed between the lower end of the eccentric shaft 230 and the inner wall of the mounting hole to reduce the contact friction between the lower end of the eccentric shaft 230 and the driven bushing 260.

[0052] It can be conceived that in order to reduce the contact friction between the driven bushing 260 and the eccentric bushing 220 and the housing 200, bearings 270 can also be sleeved between the inner wall of the driven bushing 260 and the housing 200 and between the inner wall of the eccentric bushing 220 and the housing 200, or other equivalent bearings or non-bearings.

[0053] In this embodiment, in order to prevent the eccentric shaft 230 from self-rotating when it rotates in a conical shape with OB as the generatrix and OA as the rotation center line, a mounting groove 120 is provided on the side wall of the housing 200. An eccentric sleeve 250 is rotatably arranged in the mounting groove 120. The eccentric sleeve 250 can rotate circumferentially in the mounting groove 120 around its center without axial displacement. Its circumferential rotation direction is perpendicular to the rotation direction of the transmission flange 210. The eccentric sleeve 250 and the eccentric shaft 230 are connected by an anti-rotation disc 240 sleeved in the middle of the eccentric shaft 230 and a key 251 for connecting the anti-rotation disc 240 and the eccentric sleeve 250. The anti-rotation disc 240 is on one side of the mounting groove 120, and the two are in the same plane. A slot 241 is opened on the side surface of the anti-rotation disc 240 corresponding to the eccentric sleeve 250. One end of the key 251 is inserted into the slot 241, and the other end of the key 251 passes through the mounting groove 120 and is rotatably connected to the eccentric hole on the eccentric sleeve 250. When the eccentric shaft 230 rotates in a conical shape with OB as the generatrix and OA as the rotation center line under the drive of the motor, at this time, the movement trajectory of the slot 241 on the side surface of the anti-rotation disc 240 is the same as the movement trajectory of the eccentric sleeve 250 in its circumferential direction. Therefore, after connecting the two through the key 251, when the eccentric shaft 230 rotates in a conical shape, the anti-rotation disc 240 and the key 251 can drive the eccentric sleeve 250 to rotate circumferentially in the mounting groove 120. Furthermore, by connecting the two ends of the key 251 to the eccentric sleeve 250 and the anti-rotation disc 240 respectively, the anti-rotation disc 240 is restricted from self-rotating, so as to achieve the purpose of restricting the eccentric shaft 230 from self-rotating, that is, the eccentric shaft 230 can only revolve in a conical shape with OB as the generatrix and OA as the rotation center line without self-rotating.

[0054] The axial limitation of the eccentric sleeve 250 by the installation groove 120 can be achieved by providing two convex rings on the inner wall of the installation groove 120, with the convex rings distributed on both axial sides of the eccentric sleeve 250 to limit its axial position. Of course, it is also possible to connect the eccentric sleeve 250 and the installation groove 120 through a bearing, which not only helps reduce the rolling friction between the eccentric sleeve 250 and the installation groove 120 but also limits the position of the eccentric sleeve 250.

[0055] In this embodiment, a pin connection or a key connection can be adopted between the anti-rotation disc 240 and the eccentric shaft 230 to enable them to move synchronously without circumferential rotation. When the anti-rotation disc 240 rotates conically with the eccentric shaft 230, the movement trajectory of its card slot 241 may be an arc swing or a circular motion. That is, the movement of the eccentric sleeve 250 driven by the card key 251 in the installation groove 120 by the anti-rotation disc 240 may be an arc swing or a circumferential rotation.

[0056] In the above embodiment, the card slot 241 is a non-circular blind hole, and the insertion end of the corresponding card key 251 into the card slot 241 is also non-cylindrical. When the card key 251 is inserted into the card slot 241, the card key 251 cannot rotate around its axis within the card slot 241. The other end of the card key 251 is cylindrical, and the eccentric hole of the corresponding eccentric sleeve 250 is also a circular hole. When the cylindrical end of the card key 251 is inserted into the circular hole of the eccentric sleeve 250, the card key 251 can rotate within the eccentric hole and can also drive the eccentric sleeve 250 to rotate circumferentially in the installation groove 120 with the center of the eccentric sleeve 250 as the rotation point. To ensure that when the eccentric shaft 230 and the anti-rotation disc 240 rotate conically with OA as the rotation center line, the eccentric sleeve 250 can be driven to rotate circumferentially in the installation groove 120 through the card key 251, and then the rotation of the eccentric shaft 230 can be prevented by the restriction of the card key 251 on the anti-rotation disc 240 during conical rotation.

[0057] Based on the above embodiment, when the equipment is in use, the workpiece to be processed is placed on the backing plate 400, and then the housing 200 is lowered by the hydraulic cylinder 110, so that the swing head 280 is in contact with the workpiece. The motor 201 is started to drive the eccentric shaft 230 to rotate conically within the housing 200, and then drive the swing head 280 at its lower end to perform spiral swing rolling pressing on the workpiece. The horizontal extrusion deformation force on the workpiece is provided by the spiral annular motion of the swing head 280, and the hydraulic cylinder 110 can provide a vertical extrusion force on the workpiece for the swing head 280, so that the workpiece can be quickly formed.

[0058] In this embodiment, when the workpiece is completed after pressing, its bottom often forms a fit with the backing plate 400, which further causes problems for personnel to pick up the workpiece. Further, referring to Figure 1, a cavity is provided inside the base 102, and a blanking component is provided inside the cavity. After a connection is formed between the blanking component and the casing 200, when the hydraulic cylinder 110 drives the casing 200 to reset, the blanking component is synchronously driven to extend out of the base 102, thereby separating the workpiece from the backing plate 400.

[0059] Specifically, as Figure 1 , the blanking component includes a pull rod 310 penetrating through the base 102. The lower end of the pull rod 310 is located inside the cavity and is provided with a blanking cross beam 320. A push rod 321 is provided in the middle of the blanking cross beam 320. (The blanking cross beam 320 and the push rod 321 form a movable rod member) And a through hole is provided at the center of the backing plate 400 of the base 102 corresponding to the position of the push rod 321. Connecting seats 300 are provided on both sides of the casing 200, and through holes are opened in the connecting seats 300. The upper end of the pull rod 310 passes through the through hole and is provided with a first limiting member 311. The size of the first limiting member 311 is larger than the size of the through hole and cannot pass through the through hole. The position of the first limiting member 311 is adjustably arranged on the pull rod 310. After the workpiece is processed, the hydraulic cylinder 110 drives the casing 200 to reset and rise. After the casing 200 drives the connecting seat 300 to rise and touches the first limiting member 311, the first limiting member 311 drives the pull rod 310 to rise. When the pull rod 310 rises, it drives the blanking cross beam 320 to rise, so that the push rod 321 rises and extends out of the through hole of the backing plate 400 to lift the workpiece on the backing plate 400.

[0060] This embodiment refers to Figure 1 , multiple pull rods 310 can be provided, Figure 1 and are set to two in

[0061] In this embodiment, the first limiting member 311 is arranged at different positions on the pull rod 310. Furthermore, when the hydraulic cylinder 110 drives the rotary swaging main body to reset and rise to different positions, the time to trigger the rising action of the blanking cross beam 320 can be changed. That is, after the first limiting member 311 and the pull rod 310 are fixed in position, the longer the distance of the pull rod 310 reserved at the upper end of the first limiting member 311, the shorter the distance of the pull rod 310 at the lower end of the first limiting member 311. The shorter the distance at the lower end of the pull rod 310, the closer the blanking cross beam 320 at its lower end is to the swing head 280. Therefore, when the hydraulic cylinder 110 drives the casing 200 to rise, it can more quickly drive the blanking component to extend out of the backing plate 400 to eject the workpiece. In this way, when performing rotary swaging on some small workpieces, by adjusting the first limiting member 311, the distance between the blanking cross beam 320 and the swing head 280 can be changed. Furthermore, it is not necessary to drive the casing 200 to reset and rise to the limit position, and the blanking cross beam 320 can be driven to rise and the workpiece can be ejected using the push rod 321, meeting the processing requirements of different workpieces.

[0062] Based on the above embodiments, a second limiting member 312 is provided at the lower end of the pull rod 310. The second limiting member 312 is adjustably arranged on the pull rod 310. After connecting the second limiting member 312 to the pull rod 310, by making the second limiting member 312 abut against the upper end surface of the base 102, the insertion depth of the pull rod 310 in the cavity of the base 102 can be changed, and then the initial position of the ejecting cross beam 320 in the cavity of the base 102 can be changed to meet the processing requirements of workpieces of different specifications.

[0063] In the above embodiments, the first limiting member 311 and the second limiting member 312 are adjustably connected to the pull rod 310. The connection method can be that screw holes are formed on the surface of the pull rod 310, and the first limiting member 311 and the second limiting member 312 are nuts, which are connected to the pull rod 310 by screwing to change the setting positions of the first limiting member 311 and the second limiting member 312 on the pull rod 310.

[0064] In this embodiment, the first limiting member 311 and the second limiting member 312 can also be adjustably connected to the pull rod 310 in such a way that the first limiting member 311 and the second limiting member 312 can also be pins penetrating the pull rod 310. A plurality of pin holes are axially formed in the pull rod 310. After the pins penetrate the pin holes and protrude from the surface of the pull rod 310, the pins abut against the connecting seat 300 or the base 102, and the above limiting effect can also be achieved. Of course, the adjustable connection method between the first limiting member 311 and the second limiting member 312 and the pull rod 310 can also be other forms, which will not be elaborated here.

[0065] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A vertical rotary swaging machine mainly consists of an upper beam, a base and columns. The upper end of the base is connected to the upper beam through the columns to form a frame. It is characterized in that a rotary swaging main body for rotary swaging the workpiece on the base is slidably arranged on the column. The upper beam is provided with a hydraulic cylinder for driving the rotary swaging main body to lift so as to apply a vertical swaging pressure to the workpiece. A blanking component is movably arranged on the base. When the hydraulic cylinder drives the rotary swaging main body to reset and rise, the blanking component is used to synchronously rise with the rotary swaging main body to eject the workpiece from the base. The blanking component includes a movable rod movably arranged in the base and a pull rod movably connected to the rotary swaging main body to drive the movable rod to extend out of the base when the rotary swaging main body resets and rises. The rotary swaging main body includes a machine shell connected to the telescopic end of the hydraulic cylinder, an eccentric shaft arranged in the machine shell, a motor located on the machine shell, and a swaging head arranged at the lower end of the eccentric shaft. An inclined included angle within one to five degrees is formed between the center line of the eccentric shaft and the center line of the motor output shaft. The motor is used to drive the eccentric shaft to perform a conical rotation with the center line of the motor output shaft as the rotation center line, thereby driving the swaging head to perform a rotary swaging action. A anti-rotation disk synchronized with the eccentric shaft is sleeved in the middle of the eccentric shaft. An eccentric sleeve is rotatably arranged on one side of the anti-rotation disk on the machine shell. The anti-rotation disk and the eccentric sleeve are connected by a key. One end of the key is rotatably connected in the eccentric hole of the eccentric sleeve, and the other end is inserted into the side wall of the anti-rotation disk to maintain the connection between the eccentric sleeve and the anti-rotation disk when the eccentric shaft is driven, thereby preventing the eccentric shaft from self-rotating during conical rotation.

2. A vertical rotary swaging machine according to claim 1, It is characterized in that a first limiting member is arranged at the upper end of the pull rod in an axially adjustable manner. When the rotary swaging main body resets and rises, it abuts against the first limiting member to drive the pull rod to rise.

3. A vertical rotary swaging machine according to claim 1, It is characterized in that the movable rod includes a blanking cross beam connected to the lower end of the pull rod and a ejector rod arranged on the blanking cross beam. A through hole for the ejector rod to pass through is provided on the upper end surface of the base.

4. A vertical rotary swaging machine according to claim 1, It is characterized in that the base is provided with a cavity for the vertical movement of the movable rod. A second limiting member is arranged at the lower end of the pull rod in an axially adjustable manner. The second limiting member abuts against the upper end surface of the base to adjust the maximum insertion depth of the movable rod in the cavity.

5. A vertical rotary swaging machine according to claim 1, It is characterized in that the eccentric shaft is connected to the machine shell through a rotating mechanism. The rotating mechanism includes a first rotating component arranged at the upper end of the eccentric shaft and a second rotating component arranged at the lower end of the eccentric shaft. The first rotating component and the second rotating component cooperate to guide the eccentric shaft to perform a conical rotation under the drive of the motor.

6. A vertical rotary swaging machine according to claim 5, It is characterized in that The first rotating member includes an eccentric bushing and a transmission flange that rotates synchronously with the motor output shaft. The eccentric bushing is connected to the transmission flange and has an eccentric cavity formed therein. The upper end of the eccentric shaft is rotatably disposed in the eccentric cavity through a bearing. The second rotating member includes a passive bushing rotatably disposed in the housing. A mounting hole is formed at the center of the passive bushing, and the lower end of the eccentric shaft is correspondingly rotatably inserted into the mounting hole.

7. A vertical rotary swaging machine according to claim 1, characterized in that, an installation groove is provided on the side surface of the housing. The installation groove is used for receiving the eccentric sleeve and limiting the axial direction of the eccentric sleeve to prevent axial displacement when it rotates circumferentially in the installation groove under the drive of the key.

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