A turnover device based on forging finishing

Abstract

This utility model relates to a flipping device for finishing forgings. It includes a support plate for supporting the forging, a fixing device for fixing the forging, a rotating rod for driving the fixing device to rotate and flip, first bearing seats at both ends of the rotating rod, a connecting rod for driving the rotating rod to rotate, an external gear arranged around the connecting rod, and a transmission assembly installed on one side of the top of the support plate. The fixing device is installed at the center of the rotating rod; both sets of first bearing seats are installed on the top of the support plate; the connecting rod is connected to one end of the rotating rod; and the output end of the transmission assembly is connected to the external gear. This invention solves the technical problems of existing forging finishing flipping devices, where the flipping angle mostly relies on manual control, making it difficult to achieve high-precision indexing (such as 90° or 180° directional flipping), leading to deviations in the position of the machined surface. It also addresses the technical problems of uneven clamping force distribution, lack of buffer mechanisms, and insufficient transmission accuracy.

Description

Technical Field

[0001] This utility model relates to the field of forging finishing equipment, and in particular to a flipping device for forging finishing. Background Technology

[0002] In the precision machining of forgings, multi-faceted machining of the workpiece often requires flipping and positioning. Traditional flipping devices mostly employ manual operation or simple robotic arm structures, which have the following technical drawbacks: First, the flipping angle relies on manual control, making it difficult to achieve high-precision indexing (such as 90° or 180° directional flipping), leading to deviations in the position of the machined surface. Second, the clamping mechanism is mostly rigidly fixed, lacking adaptive adjustment capabilities; irregularly shaped forgings (such as crankshafts and cams) are prone to loosening or falling off due to center of gravity shift during flipping. Third, the transmission system uses chain or belt drive, which is susceptible to slippage due to oil and debris, resulting in poor positioning repeatability. Fourth, the smooth clamping contact surface makes the workpiece prone to displacement due to inertial forces during high-speed flipping, requiring frequent machine stops for adjustment. Fifth, the enclosed overall structure requires disassembling the main frame for maintenance and replacement of drive components, which is time-consuming and labor-intensive. Although existing improved solutions introduce hydraulic grippers or encoder control, problems such as uneven clamping force distribution, lack of buffer mechanisms, and insufficient transmission accuracy still exist. Utility Model Content

[0003] This application provides a flipping device for finishing forgings, which solves the technical problems of existing flipping devices for finishing forgings, which mostly rely on manual control when flipping the angle, making it difficult to achieve high-precision indexing (such as 90°, 180° directional flipping), resulting in deviation of the machining surface position, and still have technical problems such as uneven clamping force distribution, lack of buffer mechanism and insufficient transmission accuracy.

[0004] The technical solution adopted in the embodiments of this application is as follows: A forging finishing and turning device includes a support plate for supporting the forging, a fixing device for fixing the forging, a rotating rod for driving the fixing device to rotate and turn, first bearing seats at both ends of the rotating rod, a connecting rod for driving the rotating rod to rotate, an external gear arranged around the connecting rod, and a transmission assembly installed on one side of the top of the support plate; the fixing device is installed at the center of the rotating rod; both sets of first bearing seats are installed on the top of the support plate; the connecting rod is connected to one end of the rotating rod; and the output end of the transmission assembly is driven by the external gear.

[0005] A further technical solution is as follows: the transmission assembly includes a slider, a rack disposed on the top of the slider, a lead screw for driving the slider to slide back and forth, second bearing seats disposed at both ends of the lead screw, a limiting slide rail disposed on the top of the support plate, and a first driving device for driving the lead screw to rotate; the external gear is meshed with the rack; the slider is slidably connected to the limiting slide rail, and the slider is threadedly connected to the lead screw; one end of the lead screw is connected to the output shaft of the first driving device; the first driving device and two sets of second bearing seats are all mounted on the top of the support plate.

[0006] A further technical solution is as follows: the fixing device includes a U-shaped bending plate, a fixing rod disposed at the center of the rotating rod, and a positioning component for abutting the forging; the U-shaped bending plate is disposed on the fixing rod; and three sets of positioning components arranged in a straight line array are respectively disposed at both ends of the U-shaped bending plate.

[0007] A further technical solution is as follows: the positioning component includes a positioning block for abutting against the forging and a second driving device for driving the positioning block to move; the second driving device is mounted on the U-shaped bending plate; the driving end of the second driving device passes through the U-shaped bending plate and is connected to the positioning block in a transmission manner.

[0008] A further technical solution is that the positioning block is provided with several sets of protrusions arranged in a circular array.

[0009] A further technical solution is that the first driving device is a servo motor.

[0010] A further technical solution is that the second driving device is a cylinder.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. This flipping device, employing a support plate, fixing device, rotating rod, first bearing seat, connecting rod, external gear, and transmission components, achieves high-precision indexing and flipping of forgings through a linear-rotation transmission structure of a lead screw and rack, meeting the positioning requirements for multi-faceted machining. The circumferential protrusion design of the positioning component, combined with cylinder drive, enhances the clamping stability of irregularly shaped forgings and prevents inertial displacement during flipping. The modular transmission components and detachable drive device design simplify maintenance procedures and reduce downtime. The U-shaped bending plate, along with multiple sets of positioning blocks, adapts to the flexible clamping of forgings with complex contours. The closed-loop control of the limit slide rail and servo motor ensures a smooth and vibration-free flipping process. This device can significantly improve the multi-faceted machining efficiency of forgings such as crankshafts and gearboxes, reduce manual intervention, and thus largely avoid surface damage to the workpiece. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of a forging finishing turning device according to an embodiment of the present utility model.

[0013] Figure 2 This is a partial structural diagram illustrating the transmission component in an embodiment of this utility model.

[0014] Figure 3 This is a partial structural diagram illustrating the fixing device in an embodiment of this utility model.

[0015] Figure 4 This is a partial structural diagram illustrating the positioning element in an embodiment of this utility model.

[0016] In the diagram: 1. Support plate; 2. Fixing device; 21. U-shaped bending plate; 22. Fixing rod; 23. Positioning component; 231. Positioning block; 232. Second driving device; 3. Rotating rod; 4. First bearing seat; 5. Connecting rod; 6. External gear; 7. Transmission assembly; 71. Slider; 72. Rack; 73. Lead screw; 74. Second bearing seat; 75. Limiting slide rail; 76. First driving device. Detailed Implementation

[0017] This application provides a flipping device for finishing forgings, which solves the technical problems of existing flipping devices for finishing forgings, which mostly rely on manual control when flipping the angle, making it difficult to achieve high-precision indexing (such as 90°, 180° directional flipping), resulting in deviation of the machining surface position, and still have technical problems such as uneven clamping force distribution, lack of buffer mechanism and insufficient transmission accuracy.

[0018] The technical solution in this application is to solve the above problems, and the overall approach is as follows: To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] A flipping device for finishing forgings, such as Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, the device includes a support plate 1 for supporting the forging, a fixing device 2 for fixing the forging, a rotating rod 3 for driving the fixing device 2 to rotate and flip, first bearing seats 4 set at both ends of the rotating rod 3, a connecting rod 5 for driving the rotating rod 3 to rotate, an external gear 6 arranged around the connecting rod 5, and a transmission assembly 7 installed on one side of the top of the support plate 1; the fixing device 2 is installed at the center of the rotating rod 3; both sets of first bearing seats 4 are installed on the top of the support plate 1; the connecting rod 5 is connected to one end of the rotating rod 3; the output end of the transmission assembly 7 is connected to the external gear 6.

[0020] The transmission assembly 7 includes a slider 71, a rack 72 disposed on the top of the slider 71, a lead screw 73 for driving the slider 71 to slide back and forth, second bearing seats 74 disposed at both ends of the lead screw 73, a limiting slide rail 75 disposed on the top of the support plate 1, and a first drive device 76 for driving the lead screw 73 to rotate; the external gear 6 is meshed with the rack 72; the slider 71 is slidably connected to the limiting slide rail 75, and the slider 71 is threadedly connected to the lead screw 73; one end of the lead screw 73 is connected to the output shaft of the first drive device 76; the first drive device 76 and the two sets of second bearing seats 74 are both mounted on the top of the support plate 1.

[0021] The fixing device 2 includes a U-shaped bending plate 21, a fixing rod 22 set at the center of the rotating rod 3, and a positioning element 23 for abutting the forging; the U-shaped bending plate 21 is set on the fixing rod 22; and three sets of positioning elements 23 arranged in a straight line array are respectively set at both ends of the U-shaped bending plate 21.

[0022] The positioning component 23 includes a positioning block 231 for abutting against the forging and a second driving device 232 for driving the positioning block 231 to move; the second driving device 232 is mounted on the U-shaped bending plate 21; the driving end of the second driving device 232 passes through the U-shaped bending plate 21 and is connected to the positioning block 231.

[0023] The positioning block 231 is provided with several sets of protrusions arranged in a circular array.

[0024] The first drive unit 76 is a servo motor.

[0025] The second drive unit 232 is a cylinder.

[0026] This flipping device includes a support plate 1, on the top of which two sets of first bearing seats 4 support a rotating rod 3. A fixing device 2 is fixed at the center of the rotating rod 3. The fixing device 2 consists of a U-shaped bending plate 21, a fixing rod 22, and three sets of positioning components 23. The positioning components 23 include a second drive device 232 (cylinder) and a positioning block 231 with a circumferential protrusion. The cylinder drives the positioning block 231 to press against the forging. One end of the rotating rod 3 is connected to a connecting rod 5, and an external gear 6 is fitted around its periphery. The transmission assembly 7 includes a slider 71, a rack 72, a lead screw 73, and a first drive device 76 (servo motor). The lead screw 73 is fixed to the support plate 1 through a second bearing seat 74. The servo motor drives the lead screw 73 to rotate, causing the slider 71 to move along the limit slide rail 75. The rack 72 meshes with the external gear 6, converting linear motion into precise rotation of the rotating rod 3. Both the first drive device 76 and the second drive device 232 are detachable for easy maintenance.

[0027] Operating procedures Step 1: Place the forging inside the U-shaped bending plate 21, start the three sets of second drive devices 232 (cylinders), push the positioning block 231 to press against the workpiece, and the protrusion is embedded in the surface to prevent slipping; Step 2: Set the flip angle, start the first drive device 76 (servo motor), drive the lead screw 73 to rotate, and the slider 71 drives the rack 72 to move linearly; Step 3: The rack 72 meshes with the external gear 6 to drive the rotating rod 3 to drive the fixing device 2 and the forging to rotate precisely to the target angle; Step 4: After processing is completed, the servo motor reverses and resets the rotating rod 3 to its initial position; Step 5: Retract the cylinder positioning block 231 and remove the forging.

[0028] Beneficial effects By employing a support plate 1, fixing device 2, rotating rod 3, first bearing seat 4, connecting rod 5, external gear 6, and transmission assembly 7, this flipping device achieves high-precision indexing and flipping of forgings through a linear-rotation transmission structure of lead screw 73 and rack 72, meeting the positioning requirements of multi-faceted processing. The circumferential protrusion design of the positioning component 23, combined with cylinder drive, enhances the clamping stability of irregularly shaped forgings and prevents inertial displacement during flipping. The modular transmission assembly 7 and detachable drive device design simplify maintenance procedures and reduce downtime. The U-shaped bending plate 21, in conjunction with multiple sets of positioning blocks 231, adapts to the flexible clamping of forgings with complex contours. The closed-loop control of the limit slide rail 75 and servo motor ensures a smooth and vibration-free flipping process. This device can significantly improve the multi-faceted processing efficiency of forgings such as crankshafts and gearboxes, reduce manual intervention, and thus largely avoid surface damage to the workpiece.

[0029] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A flipping device for finishing forgings, characterized in that, The device includes a support plate (1) for supporting the forging, a fixing device (2) for fixing the forging, a rotating rod (3) for driving the fixing device (2) to rotate and flip, first bearing seats (4) set at both ends of the rotating rod (3), a connecting rod (5) for driving the rotating rod (3) to rotate, an external gear (6) set around the connecting rod (5), and a transmission assembly (7) installed on one side of the top of the support plate (1); the fixing device (2) is installed at the center of the rotating rod (3); both sets of first bearing seats (4) are installed on the top of the support plate (1); the connecting rod (5) is connected to one end of the rotating rod (3); the output end of the transmission assembly (7) is connected to the external gear (6).

2. The forging finishing turning device as described in claim 1, characterized in that, The transmission assembly (7) includes a slider (71), a rack (72) disposed on the top of the slider (71), a lead screw (73) for driving the slider (71) to slide back and forth, second bearing seats (74) disposed at both ends of the lead screw (73), a limiting slide rail (75) disposed on the top of the support plate (1), and a first driving device (76) for driving the lead screw (73) to rotate; the external gear (6) is meshed with the rack (72); the slider (71) is slidably connected to the limiting slide rail (75), and the slider (71) is threadedly connected to the lead screw (73); one end of the lead screw (73) is connected to the output shaft of the first driving device (76); the first driving device (76) and the two sets of second bearing seats (74) are both mounted on the top of the support plate (1).

3. The forging finishing turning device as described in claim 1, characterized in that, The fixing device (2) includes a U-shaped bending plate (21), a fixing rod (22) located at the center of the rotating rod (3), and a positioning member (23) for abutting against the forging; the U-shaped bending plate (21) is located on the fixing rod (22); and three sets of positioning members (23) arranged in a straight line array are respectively provided at both ends of the U-shaped bending plate (21).

4. The forging finishing turning device as described in claim 3, characterized in that, The positioning element (23) includes a positioning block (231) for abutting against the forging and a second driving device (232) for driving the positioning block (231) to move; the second driving device (232) is mounted on the U-shaped bending plate (21); the driving end of the second driving device (232) passes through the U-shaped bending plate (21) and is connected to the positioning block (231) in a transmission manner.

5. A forging finishing turning device as described in claim 4, characterized in that, The positioning block (231) is provided with several sets of protrusions arranged in a circular array.

6. A forging finishing turning device as described in claim 2, characterized in that, The first driving device (76) is a servo motor.

7. A forging finishing turning device as described in claim 4, characterized in that, The second drive device (232) is a cylinder.

Images