A hoisting and transferring device for forging machining

Abstract

The present application relates to the technical field of forging transfer, in particular to a hoisting and transferring device for forging processing, which comprises two cross beams and a display, the two cross beams are locked on the plant hoist, the cross beam bottom is provided with a rotating mechanism, and the display is installed on the front of the rotating mechanism, the display displays the inner diameter of the annular workpiece, the rotating mechanism center position is provided with a rotatable grabbing mechanism, and the grabbing mechanism is used for grabbing annular workpieces with different diameters. It can adapt to annular workpieces with different diameters, save time and labor, will not be deformed due to uneven lifting stress, maximally protects the processing precision of the annular workpiece, reduces the scrap rate, completely replaces the traditional manual measurement method of holding a micrometer ruler, completely eliminates the error caused by the difficulty in aligning the workpiece center during manual measurement, significantly improves the measurement accuracy, and effectively avoids the adverse effects caused by inaccurate inner diameter measurement on the subsequent processing precision judgment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forging transfer, in particular to a hoisting and transferring device for forging machining. BACKGROUND

[0002] Forging is a key machining process in the field of mechanical manufacturing. Through the upper and lower anvil of the forging equipment, external force is directly applied to the blank to cause plastic deformation of the blank, and finally a forging with specific geometric shape and excellent internal quality is obtained. Such forgings are widely used in automobile, mechanical manufacturing, aerospace, power, petrochemical, shipbuilding and other important industries due to their high strength and high toughness, and are the core basic components supporting high-end equipment manufacturing and major engineering construction.

[0003] In the forging production and machining process, large forgings (such as main shafts, gear rings, rotating seats, etc.) cannot be transferred between processes by manual handling due to their large quality and large volume, and must rely on the hoisting and transferring of the overhead crane to ensure the smooth development of subsequent machining processes (such as flaw detection, drilling, finishing, etc.). Among them, large annular workpieces matched with ship engines and rotating carousels face more prominent problems in the transfer process due to their annular structure and difficulty in controlling stress points.

[0004] At present, for the transfer of large annular workpieces, the industry generally uses the method of binding multiple iron chains. The workers need to fix the iron chains at different positions of the annular workpiece, and complete the grabbing and transferring through the overhead crane. However, this traditional method has obvious drawbacks: first, the iron chain binding needs to be repeatedly adjusted and tied to balance the stress, which is time-consuming and labor-intensive. If the iron chain is not evenly stressed, it can easily cause local extrusion deformation of the annular workpiece, damaging the precision of the workpiece. Second, the inner diameter size of the annular workpiece is a key machining parameter, but the traditional measurement method requires manual measurement with a ruler. Limited by the size and weight of large workpieces, it is difficult to accurately align the workpiece center with the ruler, resulting in a large error in the measurement result and affecting the subsequent machining precision judgment. Third, during the machining process of the annular workpiece, flaw detection and drilling are required. When using the traditional transfer method, the worker needs to move around the workpiece with a flaw detector, which can easily cause missed detection due to irregular movement paths. For drilling operations on large annular workpieces, the workpiece position needs to be frequently adjusted to align with the drilling point, which is tedious and time-consuming, seriously affecting production efficiency. SUMMARY

[0005] The purpose of the present application is to solve the problems of time-consuming and labor-intensive workpiece transfer, large inner diameter measurement error, and inability to assist in flaw detection and drilling.

[0006] The present invention achieves the above objectives through the following technical solution: a hoisting and transfer device for forging processing, comprising two crossbeams and a display. Both crossbeams are locked onto a factory hoisting device. A rotating mechanism is installed at the bottom of the crossbeams, and the display is installed on the front of the rotating mechanism. The display shows the inner diameter of the annular workpiece. A rotatable gripping mechanism is installed at the center of the rotating mechanism, which grips annular workpieces of different diameters.

[0007] The rotating mechanism includes a box installed at the bottom of the crossbeam. A rotatable annular seat is mounted on the bottom of the inner cavity of the box via a support. Several slots are equidistantly opened on the outer wall of the annular seat along the circumference. A driving component is installed on the right side of the inner cavity of the box. The driving component cooperates with the slots to drive the annular seat to rotate intermittently, which facilitates manual flaw detection and mechanical drilling.

[0008] Specifically, the drive assembly includes two first cylinders installed on the front and rear sides of the right inner wall of the housing. A support base is installed at the output end of the first cylinder, and a first motor is installed on the front of the support base. A spline shaft is locked to the output end of the first motor through a coupling. A rotating cylinder is sleeved on the outer wall of the spline shaft, and the rotating cylinder is rotated under the drive of the first motor. A second cylinder is installed on the rear side of the support base, and the output end of the second cylinder is installed to the rear end of the rotating cylinder through a bearing. Steel bars are installed on both the front and rear sides of the outer wall of the rotating cylinder, and the steel bars are inserted into the inner cavity of the slot. The rotating cylinder is driven to move back and forth by the second cylinder to realize the switching of the positions of the two steel bars. By controlling the slot with the steel bars, the ring seat can be rotated intermittently. The operator only needs to slide the probe back and forth to complete the workpiece flaw detection, preventing missed detections caused by human movement, and can also complete equidistant drilling.

[0009] Specifically, one end of the steel bar is horizontally wound around the outer wall of the rotating drum, and the other end is inclinedly distributed on the outer wall of the rotating drum, with different inclinations at the two inclined ends of the steel bar.

[0010] Specifically, the gripping mechanism includes a rotating seat mounted on the inner wall of the annular seat. A second motor is mounted at the center of the upper surface of the rotating seat, and a turntable is mounted at the output end of the second motor. A groove is formed on the lower surface of the turntable, which rotates under the drive of the second motor. Three ear plates are mounted circumferentially on the inner wall of the rotating seat. A rotatable gear is mounted on the inner side of the ear plates via a pin, and the gear meshes with the groove. One end of a connecting rod is mounted on the outer wall of the gear, and a clamping plate is mounted on the other end of the connecting rod via a pin. A measuring component is mounted on the outer wall of the rotating seat, and the measuring component rotates coaxially with one of the gears. The groove and the gear work together to make the connecting rod swing outward simultaneously, achieving a horizontal and stable clamping of the workpiece, allowing the drill bit to drill vertically and ensuring drilling accuracy.

[0011] Specifically, the grooves are distributed in a spiral shape on the lower surface of the turntable.

[0012] Specifically, the clamp is L-shaped and has anti-slip ridges on the outer side.

[0013] Specifically, the measuring component includes a circular plate mounted on the outer wall of the rotating seat. A resistance wire is mounted on the outer edge of the front of the circular plate and is connected to a power source. A rotating shaft that rotates coaxially with a gear is mounted on the center of the circular plate via a bearing. A pointer is mounted on the front end of the rotating shaft, and a contact tip that contacts the resistance wire is mounted on the tip of the pointer.

[0014] Specifically, the pointer and gear rotate synchronously, changing the energized length of the resistance wire, thus converting the diameter change when the workpiece is supported internally into a circuit change; this enables automatic measurement of the workpiece's inner diameter, saving time and effort, and making the measurement more accurate than manual measurement.

[0015] Specifically, the contact is externally connected to an ammeter, and the ammeter is electrically connected to the display.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention uses a second motor to drive the turntable to rotate clockwise. By utilizing the meshing transmission relationship between the groove on the lower surface of the turntable and the gear, the gear is driven to rotate synchronously, which in turn causes the connecting rod connected to the gear to swing outward. Ultimately, this pushes the clamping plate to expand outward and support the annular workpiece inward. It can adapt to annular workpieces of different diameters, saving time and effort in operation. It will not deform due to uneven lifting force, thus maximizing the protection of the processing accuracy of the annular workpiece and reducing the scrap rate.

[0018] 2. This invention links the measuring component with the gripping mechanism. When the gear rotates to drive the clamping plate to expand, the pointer connected to the gear's coaxial axis rotates synchronously, causing the contact position of the pointer tip on the resistance wire to change. Since the resistance wire is connected to a fixed external power source, its energized length changes with the contact position. The inner diameter of the ring-shaped workpiece can be analyzed in reverse by the change in current, completely replacing the traditional manual measurement method of holding a ruler. This completely eliminates the error caused by difficulty in aligning with the center of the workpiece during manual measurement, significantly improving measurement accuracy and effectively avoiding the adverse effects of inaccurate inner diameter measurement on subsequent processing accuracy judgment.

[0019] 3. The present invention can drive the rotating drum to rotate by the first motor. The position of the control slot on one side of the steel bar remains unchanged, while the other side squeezes the slot to move, so that the ring workpiece can rotate intermittently. This prevents the irregular movement path during flaw detection from causing missed detection, ensures accurate drilling position, and improves drilling efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a top cross-sectional view of the rotating mechanism of the present invention;

[0022] Figure 3 This is a top view of the driving component of the present invention;

[0023] Figure 4 This is a schematic diagram of the rotating drum structure of the present invention;

[0024] Figure 5 This is an exploded view of the gripping mechanism of the present invention;

[0025] Figure 6 This is a bottom view of the turntable of the present invention;

[0026] Figure 7 This is a schematic diagram of the measurement component structure of the present invention.

[0027] In the diagram: 1. Crossbeam; 2. Display; 3. Rotating mechanism; 4. Gripping mechanism; 31. Housing; 32. Ring seat; 33. Slot; 34. Drive assembly; 341. First cylinder; 342. Support seat; 343. First motor; 344. Splined shaft; 345. Rotary cylinder; 346. Second cylinder; 347. Steel bar; 41. Rotating seat; 42. Second motor; 43. Turntable; 44. Groove; 45. Ear plate; 46. Gear; 47. Connecting rod; 48. Clamping plate; 49. Measuring assembly; 491. Circular plate; 492. Resistance wire; 493. Rotating shaft; 494. Pointer; 495. Contact. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of the present invention easier to understand, the preferred embodiments of the present invention are further described below in conjunction with specific embodiments and accompanying drawings.

[0029] Please see Figures 1-7 This invention provides a hoisting and transfer device for forging processing, comprising two crossbeams 1 and a display 2. Both crossbeams 1 are locked onto a hoisting device in the factory, and the hoisting device moves the annular workpiece. A rotating mechanism 3 is installed at the bottom of the crossbeams 1, and the display 2 is installed on the front of the rotating mechanism 3, displaying the inner diameter of the annular workpiece. A rotatable gripping mechanism 4 is installed at the center of the rotating mechanism 3, which grips annular workpieces of different diameters. The rotating mechanism 3 includes a box 31 installed at the bottom of the crossbeams 1. A rotatable annular seat 32 is mounted on the bottom of the inner cavity of the box 31 through a support. The annular seat 32 enables the gripping mechanism 4 to rotate. Several slots 33 are evenly spaced along the circumference on the outer wall of the annular seat 32. A drive assembly 34 is installed on the right side of the inner cavity of the box 31. The drive assembly 34 cooperates with the slots 33 to drive the annular seat 32 to rotate intermittently, which facilitates manual flaw detection and mechanical drilling.

[0030] As a preferred embodiment, the drive assembly 34 further includes two first cylinders 341 installed on the front and rear sides of the right inner wall of the housing 31. A support base 342 is mounted on the output end of each first cylinder 341. When the first cylinders 341 drive the support base 342 to move left and right, the steel bars 347 engage or disengage from the slots 33. A first motor 343 is mounted on the front of the support base 342. A splined shaft 344 is locked to the output end of the first motor 343 via a coupling. A rotating cylinder 345 is sleeved on the outer wall of the splined shaft 344. The rotating cylinder 345 can not only move linearly on the splined shaft 344, but also rotate synchronously with the splined shaft 344 under the drive of the first motor 343. A second cylinder 346 is installed on the rear side of the support base 342, and the output end of the second cylinder 346 is mounted to the rear end of the rotating cylinder 345 via a bearing. Steel bars 347 are installed on both the front and rear sides of the outer wall of the rotating cylinder 345, and the steel bars 347 are inserted into the slots. The inner cavity of 33 is driven by the second cylinder 346 to move the rotating drum 345 back and forth, thereby switching the positions of the two steel bars 347. One end of the steel bar 347 is horizontally wrapped around the outer wall of the rotating drum 345, and the other end is inclined and distributed on the outer wall of the rotating drum 345. As the rotating drum 345 rotates, the horizontal section of the steel bar 347 can keep the slot 33 stationary. When the horizontal section is disengaged from the slot 33, the inclined section can squeeze the slot 33 to move when rotating, so that the ring seat 32 can achieve intermittent rotation. The two steel bars 347 have different inclinations at their inclined ends, so the rotation angle of the ring seat 32 can be adjusted. When changing the single rotation angle of the ring seat 32, the first cylinder 341 drives the support seat 342 to move to the right, so that the steel bar 347 disengages from the slot 33 first. Then the second cylinder 346 drives the rotating drum 345 to move back and forth, changing the position of the steel bar 347 and then making the steel bar 347 contact the slot 33, thus achieving the purpose of adjusting the rotation angle.

[0031] When flaw detection or equidistant drilling is required on a ring-shaped workpiece, the drive assembly 34 drives the ring seat 32 to achieve intermittent rotation through the following steps:

[0032] Two first cylinders 341 are activated. The output end of the first cylinder 341 extends and pushes the support seat 342 to move to the left in the horizontal direction until the horizontal section and the inclined section of one of the steel bars 347 (the front or rear steel bar is selected according to the processing requirements) on the outer wall of the rotating drum 345 are inserted into the inner cavity of the slot 33 of the ring seat 32. At this time, the first cylinder 341 stops moving and the support seat 342 remains in the positioning state.

[0033] The first motor 343 is started, which drives the spline shaft 344 to rotate. The spline shaft 344 drives the rotating drum 345 to rotate synchronously. At this time, the horizontal section of the steel bar 347 is in close contact with the inner wall of the slot 33. Since the horizontal section has no tilt angle, it cannot generate a thrust along the circumference of the annular seat 32 on the slot 33 during its rotation. Therefore, the annular seat 32 remains stationary. The operator can perform flaw detection or drilling on the annular workpiece at this stage.

[0034] Switching processing position: As the drum 345 continues to rotate, the horizontal section of the steel bar 347 gradually disengages from the slot 33, while the inclined section gradually enters the slot 33 and contacts the inner wall of the slot 33. Due to the preset inclination angle of the inclined section, it will exert a squeezing force on the inner wall of the slot 33 along the circumference of the ring seat 32 during its rotation, pushing the ring seat 32 to rotate around its own axis. When the inclined section completely disengages from the slot 33, the ring seat 32 stops rotating, thus completing one intermittent cycle from rest to rotation.

[0035] Intermittent cycle: The first motor 343 continuously drives the rotating drum 345 to rotate, and the horizontal and inclined sections of the steel bar 347 alternately contact the slot 33, driving the ring seat 32 to continuously perform intermittent motion of "stationary, rotating and stationary" until the flaw detection or drilling of the ring workpiece is completed.

[0036] When machining ring-shaped workpieces with different diameters or different drilling spacings, it is necessary to adjust the single rotation angle of the ring seat 32. The specific adjustment steps are as follows:

[0037] Start the first cylinder 341. The output end of the first cylinder 341 retracts, causing the support base 342 to move horizontally to the right until the steel strip 347 on the outer wall of the rotating cylinder 345 is completely disengaged from the slot 33 of the ring seat 32, avoiding interference between the steel strip and the slot during the adjustment process. Start the second cylinder 346 and select the corresponding steel strip 347 according to the required rotation angle (the steel strip with a larger inclination corresponds to a larger single rotation angle, and the steel strip with a smaller inclination corresponds to a smaller single rotation angle): If it is necessary to increase the single rotation angle, the output end of the second cylinder 346 extends and pushes the rotating cylinder 345 forward along the spline shaft 344, so that the rear steel strip 347 moves to the position corresponding to the slot 33; if it is necessary to decrease the single rotation angle, the output end of the second cylinder 346 retracts, pulling the rotating cylinder 345 backward along the spline shaft 344, so that the front steel strip 347 moves to the position corresponding to the slot 33.

[0038] After the position of the steel bar is switched, the first cylinder 341 is started again. The output end of the first cylinder 341 extends and pushes the support 342 to the left, so that the switched steel bar 347 is inserted into the slot 33 of the ring seat 32, completing the positioning of the rotation angle adjustment. The subsequent processing operation can be carried out according to the intermittent rotation process.

[0039] As a preferred embodiment, the gripping mechanism 4 further includes a rotating seat 41 mounted on the inner wall of the annular seat 32. A second motor 42 is mounted at the center of the upper surface of the rotating seat 41, and a turntable 43 is mounted at the output end of the second motor 42. The turntable 43 is horizontally positioned to ensure that the groove 44 and the gear 46 are always engaged. The lower surface of the turntable 43 has a groove 44, which rotates under the drive of the second motor 42. The groove 44 is spirally distributed on the lower surface of the turntable 43. When the turntable 43 rotates clockwise or counterclockwise, the groove 44 uses its own curvature to press the gear 46 inward or outward, thereby causing the connecting rod 47 to swing outward or inward. Three ear plates 45 are mounted circumferentially on the inner wall of the rotating seat 41, and the inner sides of the ear plates 45 are connected by pins. A rotatable gear 46 is installed, and the gear 46 meshes with the groove 44. One end of the connecting rod 47 is installed on the outer wall of the gear 46, and the other end of the connecting rod 47 is installed with a clamping plate 48 via a pin. The clamping plate 48 is L-shaped and has anti-slip ridges on the outside. When the ring-shaped workpiece is supported in the clamping plate 48, the anti-slip ridges play an anti-slip role, and the bottom surface of the clamping plate 48 can support the ring-shaped workpiece. A measuring component 49 is installed on the outer wall of the rotating seat 41, and the measuring component 49 rotates coaxially with one of the gears 46. When it is necessary to release the ring-shaped workpiece, the second motor 42 drives the turntable 43 to rotate counterclockwise, causing the groove 44 to squeeze the gear 46 outward, causing the connecting rod 47 to swing inward, thereby causing the clamping plate 48 to close inward, realizing the placement of the ring-shaped workpiece.

[0040] Initial state: The second motor 42 is not started, and the three clamping plates 48 are in an inward retracted state (minimum spacing) to ensure that they can be inserted into the inner hole of the annular workpiece;

[0041] The second motor 42 is started, controlling its output shaft to rotate clockwise, which drives the turntable 43 to rotate clockwise synchronously. The spiral groove 44 on the lower surface of the turntable 43 rotates with the turntable, and the spiral surface of the groove 44 generates an outward squeezing force on the three meshing gears 46, causing the three gears 46 to rotate outward synchronously around the pin shaft of their respective ear plates 45. When the gears 46 rotate outward, they push the three clamping plates 48 to expand outward synchronously through the connecting rod 47 until the anti-slip edge of the vertical section of the clamping plate 48 is tightly fitted with the inner wall of the annular workpiece. At this time, the horizontal section of the clamping plate 48 just supports the bottom of the annular workpiece, forming a double fixation of "internal support and lifting", completing the workpiece gripping. Since the three clamping plates 48 expand synchronously and the spiral trajectory of the groove 44 can be adapted to different diameters, when the inner diameter of the workpiece changes, the second motor 42 can continuously drive the turntable to rotate, causing the clamping plates 48 to expand to fit with the inner wall of the hole, realizing adaptive gripping of annular workpieces of different diameters.

[0042] As a preferred embodiment, the measuring assembly 49 further includes a circular plate 491 mounted on the outer wall of the rotating seat 41. A resistance wire 492 is mounted on the outer edge of the front side of the circular plate 491, and the resistance wire 492 is externally connected to a power source. The resistance of the resistance wire 492 is not affected by temperature, preventing errors when measuring the inner diameter of the annular workpiece. A rotating shaft 493, which rotates coaxially with the gear 46, is mounted at the center of the circular plate 491 via a bearing. A pointer 494 is mounted at the front end of the rotating shaft 493, and a contact 495 that contacts the resistance wire 492 is mounted at the tip of the pointer 494. The pointer 494 rotates synchronously with the gear 46, changing the energized length of the resistance wire 492, thus converting the diameter change when the annular workpiece is internally supported into a circuit change. An ammeter is externally connected to the contact 495, and the ammeter is electrically connected to the display 2 to measure the current of the energized resistance wire 492. The inner diameter of the annular workpiece is calculated based on the current change.

[0043] Working principle:

[0044] Step 1: Move the gripping mechanism 4 in the factory using the lifting device. When the gripping mechanism 4 reaches the gripping point of the annular workpiece, the second motor 42 drives the turntable 43 to rotate clockwise. The groove 44 uses its own inclined surface to squeeze the gear 46 inward, causing the gear 46 to drive the connecting rod 47 to swing outward until the clamping plate 48 contacts the inner diameter of the annular workpiece, and then the annular workpiece can be gripped. Since the clamping plate 48 spreads outward synchronously, it is suitable for the transfer of annular workpieces with various inner diameters.

[0045] Step 2: When gripping the ring-shaped workpiece, the pointer 494 and the gear 46 rotate synchronously, which changes the contact point between the contact 495 and the resistance wire 492. The energized length of the resistance wire 492 changes, and the current changes under the premise that the external power supply voltage remains unchanged. The inner diameter of the ring-shaped workpiece is analyzed based on the change in current and displayed on the display 2 to avoid the measurement error problem that occurs when manually measuring the inner diameter.

[0046] Step 3: When flaw detection or drilling is required on the annular workpiece, the first motor 343 drives the spline shaft 344 to rotate. The rotating drum 345 rotates coaxially with the spline shaft 344. The rotation of the steel bar 347 on one side does not cause the slot 33 to be positioned, keeping the annular seat 32 stationary. When the steel bar 347 enters the slot 33 on the other side, the inclined surface of the steel bar 347 pushes the slot 33, causing the annular seat 32 to rotate. As the rotating drum 345 rotates continuously, the rotating seat 41 is rotated intermittently, preventing flaw detection from being missed and also completing equidistant drilling.

[0047] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A hoisting and transferring device for forging processing, comprising two crossbeams (1) and a display (2), wherein both crossbeams (1) are locked onto a factory hoisting device, characterized in that, The bottom of the crossbeam (1) is equipped with a rotating mechanism (3), and the display (2) is installed on the front of the rotating mechanism (3). The display (2) shows the inner diameter of the ring workpiece. The rotating mechanism (3) is equipped with a rotating gripping mechanism (4) at the center position. The gripping mechanism (4) can grip ring workpieces of different diameters. The rotating mechanism (3) includes a box (31) installed at the bottom of the crossbeam (1). A rotatable ring seat (32) is installed at the bottom of the inner cavity of the box (31) by a support. A number of slots (33) are equidistantly opened on the outer side wall of the ring seat (32) along the circumference. A drive assembly (34) is installed on the right side of the inner cavity of the box (31). The drive assembly (34) cooperates with the slots (33) to drive the ring seat (32) to rotate intermittently, which facilitates manual flaw detection and mechanical drilling. The drive assembly (34) includes two first cylinders (341) installed on the front and rear sides of the right inner wall of the housing (31). The output end of the first cylinder (341) is equipped with a support base (342). The front of the support base (342) is equipped with a first motor (343). The output end of the first motor (343) is locked with a spline shaft (344) through a coupling. A rotating cylinder (345) is sleeved on the outer wall of the spline shaft (344). The rotating cylinder (345) is rotated under the drive of the first motor (343). A second cylinder (346) is installed on the rear side of the support base (342). The output end of the second cylinder (346) is installed with the rear end of the rotating cylinder (345) through a bearing. Steel bars (347) are installed on both the front and rear sides of the outer wall of the rotating cylinder (345). The steel bars (347) are inserted into the inner cavity of the slot (33). The rotating cylinder (345) is driven to move back and forth by the second cylinder (346) to realize the switching of the positions of the two steel bars (347). One end of the steel bar (347) is horizontally wound around the outer wall of the rotating drum (345), and the other end is inclinedly distributed on the outer wall of the rotating drum (345). The inclinations of the two inclined ends of the steel bar (347) are different. The gripping mechanism (4) includes a rotating seat (41) installed on the inner wall of the ring seat (32). A second motor (42) is installed at the center of the upper surface of the rotating seat (41). A turntable (43) is installed at the output end of the second motor (42). A groove (44) is opened on the lower surface of the turntable (43). The groove (44) rotates under the drive of the second motor (42). Three ear plates (45) are installed circumferentially on the inner wall of the rotating seat (41). A rotatable gear (46) is installed on the inner side of the ear plate (45) through a pin. The gear (46) meshes with the groove (44). One end of a connecting rod (47) is installed on the outer wall of the gear (46). A clamping plate (48) is installed on the other end of the connecting rod (47) through a pin. A measuring component (49) is installed on the outer wall of the rotating seat (41). The measuring component (49) rotates coaxially with one of the gears (46).

2. The hoisting and transferring device for forging processing according to claim 1, characterized in that, The grooves (44) are spirally distributed on the lower surface of the turntable (43).

3. A hoisting and transferring device for forging processing according to claim 2, characterized in that, The clamp (48) is L-shaped and has anti-slip ridges on the outside.

4. A hoisting and transferring device for forging processing according to claim 3, characterized in that, The measuring assembly (49) includes a circular plate (491) mounted on the outer wall of a rotating seat (41). A resistance wire (492) is mounted on the outer edge of the front side of the circular plate (491), and the resistance wire (492) is connected to a power source. A rotating shaft (493) that rotates coaxially with a gear (46) is mounted at the center of the circular plate (491) via a bearing. A pointer (494) is mounted at the front end of the rotating shaft (493), and a contact (495) that contacts the resistance wire (492) is mounted at the tip of the pointer (494).

5. A hoisting and transferring device for forging processing according to claim 4, characterized in that, The pointer (494) rotates synchronously with the gear (46), changing the energized length of the resistance wire (492) and converting the diameter change of the inner ring workpiece into a circuit change.

6. A hoisting and transferring device for forging processing according to claim 5, characterized in that, The contact (495) is externally connected to an ammeter, and the ammeter is electrically connected to the display (2).

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