A forging feeding and discharging clamp for engine flywheel ring gear

Abstract

The utility model discloses a kind of forging and beating feeding and discharging clamps of engine flywheel gear ring, it is related to engine accessory technical field.A kind of forging and beating feeding and discharging clamps of engine flywheel gear ring, comprising: cylinder, two frame plates, two clamping arms, adjusting plate and two clamping units;Two frame plates are fixedly connected in the cylinder body end portion of cylinder with parallel interval, and are respectively located at the radial two sides of cylinder driving rod;Two clamping arms are symmetrically arranged between two frame plates, and each clamping arm includes mutually connected vertical rod and cross bar.The utility model is precisely adapted gear ring profile by the annular clamping groove of gyro wheel peripheral wall, then cooperate with the synchronous transmission of two clamping arms, realize that clamping force is evenly distributed, effectively avoid high-temperature workpiece slip and deformation;Rely on cylinder drive adjusting plate, two clamping arms are guided to symmetrically unfold or close by splay-shaped limit hole, the distance of two clamping units is dynamically changed and clamping operation is realized, different specifications gear ring clamping operation can be adapted, reduce production preparation time and cost.

Description

Technical Field

[0001] This utility model relates to the field of engine parts technology, specifically to a forging and unloading fixture for an engine flywheel gear ring. Background Technology

[0002] In the manufacturing process of engine flywheel gear rings, forging is a crucial step in ensuring their mechanical properties, and the loading and unloading operations during forging directly affect production efficiency, workpiece quality, and operational safety. Currently, the loading and unloading of flywheel gear ring forging largely relies on specialized fixtures for automated or semi-automated operations, but existing fixtures still have the following shortcomings in practical applications:

[0003] (1) Insufficient clamping stability: The flywheel gear ring is in a high-temperature state during forging and is mostly a thin-walled annular structure. The existing clamping components often have unreasonable structural design, resulting in uneven clamping force distribution, which can easily cause the workpiece to slip or deform locally, affecting the subsequent forging accuracy.

[0004] (2) Poor adaptability: The flywheel gear rings of different models have different sizes. The existing clamping unit positions are mostly fixed structures, which are difficult to adjust quickly to adapt to various specifications of workpieces. The clamps need to be changed frequently, which increases the production preparation time and cost.

[0005] Therefore, given the specific requirements of the engine flywheel gear ring forging process, how to develop a stable and adaptable loading and unloading fixture is a technical problem that urgently needs to be solved by those skilled in the art.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model provides a forging and unloading fixture for an engine flywheel gear ring, thereby solving the problems mentioned in the background section.

[0008] This utility model provides the following technical solution: a forging and unloading fixture for an engine flywheel gear ring, comprising: a cylinder, two frame plates, two clamping arms, an adjusting plate, and two clamping units;

[0009] Two frame plates are fixedly connected to the cylinder body end of the cylinder in parallel and spaced apart, and are located on both radial sides of the cylinder drive rod respectively.

[0010] Two clamping arms are symmetrically arranged between two frame plates. Each clamping arm includes a vertical bar and a horizontal bar that are connected to each other. The inner side of the vertical bar of each clamping arm is hinged to the frame plate through a pin fixed between the two frame plates.

[0011] The adjusting plate is located between the two frame plates, and its bottom middle position is fixedly connected to the end of the cylinder drive rod. The adjusting plate has two symmetrically distributed and figure-eight-shaped elongated limiting holes.

[0012] The lower ends of the vertical rods of the two clamping arms are respectively connected to the corresponding elongated limiting holes through pin two, and pin two can slide back and forth along the length of the elongated limiting hole;

[0013] Two gripping units are fixedly connected to the crossbars of the two gripping arms to cooperate in gripping the engine flywheel gear ring.

[0014] Preferably, the clamping unit includes a fixed plate and a roller fixed to the outside of the fixed plate; the roller has an annular clamping groove on its peripheral wall.

[0015] Preferably, the crossbar has multiple mounting holes spaced apart; the fixing plate is detachably fixed to the mounting holes on the crossbar by screws, and the fixing position of the fixing plate can be adjusted by selecting different mounting holes.

[0016] Preferably, the drive rod has an elongated guide hole along its axial direction; a guide rod is fixed between the two frame plates at the position corresponding to the elongated guide hole, and the guide rod passes through the elongated guide hole and forms a sliding fit with the elongated guide hole.

[0017] Preferably, a reinforcing rod is fixed between the two frame plates at their top positions.

[0018] The forging and unloading fixture for an engine flywheel gear ring provided in this embodiment of the invention has the following beneficial effects:

[0019] (1) This utility model uses the annular clamping groove on the peripheral wall of the roller to accurately fit the profile of the gear ring, and with the synchronous transmission of the two clamping arms, it achieves a uniform distribution of clamping force, effectively preventing the high-temperature workpiece from slipping and deforming.

[0020] (2) This utility model relies on the cylinder to drive the adjustment plate, and guides the two clamping arms to unfold or move closer together symmetrically through the figure-eight limiting hole, dynamically changing the distance between the two clamping units and realizing the clamping operation. It can be adapted to clamping operations of different specifications of gear rings, reducing production preparation time and cost. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the present invention from angle one;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from angle two;

[0023] Figure 3 This is a structural schematic diagram of angle three of this utility model;

[0024] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 5 This utility model Figure 4 A magnified view of part B in the image. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] See Figures 1-5 To address the problems mentioned in the background section, this utility model provides a forging and unloading fixture for an engine flywheel gear ring to solve the aforementioned technical problems. The technical solution is as follows:

[0028] A forging and unloading fixture for an engine flywheel gear ring is characterized by comprising: a cylinder 110, two frame plates 160, two clamping arms 130, an adjusting plate 120, and two clamping units.

[0029] Two frame plates 160 are fixedly connected to the cylinder body end of the cylinder 110 in parallel and at intervals, and are respectively located on both sides of the drive rod 111 of the cylinder 110.

[0030] Two clamping arms 130 are symmetrically arranged between two frame plates 160. Each clamping arm 130 includes a vertical bar and a horizontal bar 131 connected to each other. The inner side of the vertical bar of each clamping arm 130 is hinged to the frame plate 160 through a pin 115 fixed between the two frame plates 160.

[0031] The adjusting plate 120 is located between two frame plates 160, and its bottom middle position is fixedly connected to the end of the drive rod 111 of the cylinder 110. Two symmetrically distributed and figure-eight-shaped limiting holes 121 are provided on the adjusting plate 120.

[0032] The lower ends of the vertical rods of the two clamping arms 130 are respectively connected to the corresponding elongated limiting holes 121 by pins 116. Pins 116 can slide back and forth along the length of the elongated limiting holes 121.

[0033] Two gripping units are fixedly connected to the crossbars 131 of the two gripping arms 130 to cooperate in gripping the engine flywheel ring gear.

[0034] In this embodiment, the clamping unit includes a fixing plate 140 and a roller 150 fixed to the outside of the fixing plate 140; an annular clamping groove is provided on the peripheral wall of the roller 150.

[0035] It should be noted that the roller 150 was chosen as the clamping structure of the clamping unit because the annular clamping groove on the circumferential wall of the roller 150 can accurately fit the annular outer edge of the flywheel gear ring. This not only forms a radial limit on the gear ring through the groove to prevent the workpiece from slipping during clamping, but also allows the clamping force to be evenly distributed along the groove surface, avoiding deformation of the thin-walled gear ring due to excessive local force under high temperature conditions. At the same time, the roller structure can also reduce frictional damage to the surface of the gear ring during clamping and transportation.

[0036] In this embodiment, a plurality of mounting holes 132 are spaced apart on the crossbar 131; the fixing plate 140 is detachably fixed to the mounting holes 132 on the crossbar 131 by screws, and the fixing plate 140 can be adjusted in position by selecting different mounting holes 132.

[0037] It should be noted that by selecting different positions of the mounting holes 132, the distance between the two clamping units can be changed, thereby adapting to flywheel gear rings with different outer diameter specifications, and meeting the production needs of multiple models without replacing the entire set of fixtures.

[0038] In this embodiment, a long strip-shaped guide hole 113 is provided on the drive rod 111 along its axial direction; a guide rod 114 is fixedly connected between the two frame plates 160 at the position corresponding to the long strip-shaped guide hole 113, and the guide rod 114 passes through the long strip-shaped guide hole 113 and forms a sliding fit with the long strip-shaped guide hole 113.

[0039] In this embodiment, a reinforcing rod 112 is fixedly connected between the two frame plates 160 at their top positions to improve the structural strength of the connection between the two frame plates 160.

[0040] The present invention provides a method for storing a forging loading and unloading fixture for an engine flywheel gear ring, as follows:

[0041] (1) First, assemble this fixture on the drive end of the robotic arm. When the flywheel gear ring (hot forging billet or forged workpiece) to be clamped is sent to the clamping station, the robotic arm controls the two clamping units of the fixture to be placed into the gear ring of the flywheel gear ring.

[0042] (2) Control cylinder 110 drives rod 111 to extend, driving adjustment plate 120 to move forward; because the two long strip-shaped limiting holes 121 on adjustment plate 120 are in the shape of the number eight, during the movement, the second pin 116 will be driven to move to the outside of the limiting hole, forcing the two clamping arms 130 to rotate outward symmetrically around the first pin 115, so that the annular clamping groove of the roller 150 on the clamping unit fits the outer edge of the flywheel gear ring, realizing radial constraint.

[0043] (3) When the fixture carries the workpiece to the target station, the drive rod 111 of the control cylinder 110 drives the adjustment plate 120 to retract. At this time, the second pin 116 slides along the figure-eight limiting hole to the inner end point, and the clamping arm 130 rotates in the opposite direction around the first pin 115 under the pull of the adjustment plate to release the workpiece.

[0044] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A forging and unloading fixture for an engine flywheel gear ring, characterized in that, include: Cylinder, two frame plates, two clamping arms, adjusting plate, and two clamping units; Two frame plates are fixedly connected to the cylinder body end of the cylinder in parallel and spaced apart, and are located on both radial sides of the cylinder drive rod respectively. Two clamping arms are symmetrically arranged between two frame plates. Each clamping arm includes a vertical bar and a horizontal bar that are connected to each other. The inner side of the vertical bar of each clamping arm is hinged to the frame plate through a pin fixed between the two frame plates. The adjusting plate is located between the two frame plates, and its bottom middle position is fixedly connected to the end of the cylinder drive rod. The adjusting plate has two symmetrically distributed and figure-eight-shaped elongated limiting holes. The lower ends of the vertical rods of the two clamping arms are respectively connected to the corresponding elongated limiting holes through pin two, and pin two can slide back and forth along the length of the elongated limiting hole; Two gripping units are fixedly connected to the crossbars of the two gripping arms to cooperate in gripping the engine flywheel gear ring.

2. The forging and unloading fixture for the engine flywheel gear ring according to claim 1, characterized in that, The clamping unit includes a fixed plate and a roller fixed to the outside of the fixed plate; the roller has an annular clamping groove on its peripheral wall.

3. The forging and unloading fixture for the engine flywheel gear ring according to claim 2, characterized in that, The crossbar has multiple mounting holes spaced apart; the fixing plate is detachably fixed to the mounting holes on the crossbar by screws, and the fixing position of the fixing plate can be adjusted by selecting different mounting holes.

4. The forging and unloading fixture for the engine flywheel gear ring according to claim 1, characterized in that, The drive rod has an elongated guide hole along its axial direction; a guide rod is fixed between the two frame plates at the position corresponding to the elongated guide hole, and the guide rod passes through the elongated guide hole and forms a sliding fit with the elongated guide hole.

5. The forging and unloading fixture for the engine flywheel gear ring according to claim 1, characterized in that, A reinforcing bar is fixed between the two frame panels at their top positions.

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