Automatic rotating arm switching mechanism for forging punch of hydraulic machine

Abstract

The utility model discloses a hydraulic press forging punch automatic switching rotating arm mechanism which comprises a sliding block and a working table of a hydraulic press, at least one set of automatic switching rotating arm mechanism is installed on the sliding block or the working table, and each automatic switching rotating arm mechanism comprises a fixing plate, a rotating shaft, a rotating arm, a cantilever and a swing oil cylinder. The automatic switching rotary arm mechanism has the advantages that a plurality of sets of automatic switching rotary arm mechanisms can be installed on the same hydraulic machine, and different types of punches can be installed on each set of automatic switching rotary arm mechanisms, so that automatic switching of the punches can be achieved, the chambering requirement of forgings is met, manual participation is not needed, switching of the punches is automatically completed, and labor cost is reduced; and 2, the punches are automatically switched on the same hydraulic machine, the error is controllable, the precision of the forge piece can be ensured, and the product quality and the production efficiency are improved.

Description

Technical field:

[0001] The utility model relates to the technical field of hydraulic presses, in particular to an automatic switching arm mechanism for a forging punch of a hydraulic press. Background technology:

[0002] When a hydraulic press forges a workpiece, it is necessary to heat the workpiece to above 800°C and punch the workpiece. If some workpieces need to be opened, punches of different diameters are needed to punch the workpiece so that the hole diameter is gradually expanded to reach the required diameter size. The current equipment requires the punch to be manually placed in the center of the equipment. Due to the high temperature of the workpiece, the upper and lower punches need to be sprayed and cooled outside the equipment before workers can replace the punches. Therefore, special staff are required to insert or remove the punches, which increases labor costs. The repetitive error of the punch placement is large and uncontrollable. The staff is close to the equipment, which is prone to accidents and reduces production efficiency. Summary of the invention:

[0003] The utility model aims to solve the existing problems and provides an automatic switching arm mechanism for a forging punch of a hydraulic press.

[0004] The technical solutions of the utility model are as follows:

[0005] A hydraulic press forging punch automatic switching arm mechanism comprises a slider and a workbench of the hydraulic press, at least one set of automatic switching arm mechanism is installed on the slider or the workbench, the automatic switching arm mechanism comprises a fixed plate, a rotating shaft, a rotating arm, a cantilever and a swing cylinder, the fixed plate is relatively installed on the slider, the rotating shaft is vertically installed between the fixed plates, the swing cylinder is installed on the top surface of the slider and drives the rotating shaft to rotate, the rotating arm can be installed on the rotating shaft with height adjustment, the cantilever can be detachably installed on the rotating arm, and a punch mounting hole is formed on it.

[0006] Preferably, the swing cylinder is connected to the rotating shaft via a pin key to drive the rotating shaft to rotate.

[0007] Preferably, spherical roller bearings are installed on the fixed plates.

[0008] Preferably, a first bushing and a first locking nut are installed above the upper fixing plate, and a flange is screwed on the bottom surface of the lower fixing plate, and a dust ring, a dustproof pressure plate and a second locking nut are installed inside the flange.

[0009] Preferably, a mounting frame is fixed to the top surface of the upper fixing plate, and the swing cylinder is fixed on the mounting frame.

[0010] Preferably, the pivot arm is sleeved on the rotating shaft via a pin key, a second bushing is sleeved on the rotating shaft between the flange and the pivot arm, and a third locking nut and a stop nut are threadedly connected to the lower end of the rotating shaft.

[0011] The beneficial effects of the utility model are:

[0012] 1. Multiple sets of automatic switching arm mechanisms can be installed on the same hydraulic press, and each set can be installed with punches of different types. This can realize automatic switching of punches to meet the hole expansion requirements of forgings. No manual intervention is required, and the punch switching is automatically completed, reducing labor costs.

[0013] 2. On the same hydraulic press, the punches are automatically switched and the error is controllable, which can ensure the accuracy of forgings and improve product quality and production efficiency. Description of the drawings:

[0014] Figure 1 It is a schematic diagram of the main view and partial cross-section of the slider and the automatic switching arm mechanism of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the hydraulic press and the automatic switching arm mechanism of the utility model;

[0016] Figure 3 for Figure 1 A local enlarged schematic diagram;

[0017] Figure 4 for Figure 1 A local enlarged schematic diagram of point B;

[0018] In the attached drawings: 1. Slider; 2. Fixed plate; 3. Rotating shaft; 4. Rotating arm; 5. Cantilever; 6. Swinging cylinder; 7. Mounting hole; 8. Self-aligning roller bearing; 9. First bushing; 10. First locking nut; 11. Flange; 12. Dustproof ring; 13. Dustproof pressure plate; 14. Second locking nut; 15. Mounting frame; 16. Second bushing; 17. Third locking nut; 18. Stop nut. Specific implementation method:

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] like Figure 1-4As shown, the automatic switching arm mechanism of the forging punch of the hydraulic press includes a slider 1 and a workbench of the hydraulic press, at least one set of automatic switching arm mechanism is installed on the slider 1 or the workbench, the automatic switching arm mechanism includes a fixed plate 2, a rotating shaft 3, a rotating arm 4, a cantilever 5 and a swing cylinder 6, the fixed plate 2 is relatively installed on the slider 1, the rotating shaft 3 is vertically installed between the fixed plates 2, the swing cylinder 6 is installed on the top surface of the slider 1 and drives the rotating shaft 3 to rotate, the rotating arm 4 can be installed on the rotating shaft 3 with height adjustment, the cantilever 5 can be detachably installed on the rotating arm 4, and a punch mounting hole 7 is formed thereon.

[0025] Specifically, the swing cylinder 6 is connected to the rotating shaft 3 via a pin key to drive the rotating shaft 3 to rotate.

[0026] Specifically, spherical roller bearings 8 are installed on the fixing plates 2 to ensure the verticality of the rotating shaft 3 .

[0027] Specifically, a first bushing 9 and a first locking nut 10 are installed above the upper fixing plate 2, and a flange 11 is screwed on the bottom surface of the lower fixing plate 2, and a dust ring 12, a dustproof pressure plate 13 and a second locking nut 14 are installed inside the flange 11.

[0028] Specifically, a mounting frame 15 is fixed on the top surface of the upper fixing plate 2 , and the swing cylinder 6 is fixed on the mounting frame 15 .

[0029] Specifically, the pivot arm 4 is sleeved on the rotating shaft 3 through a pin key, and the second bushing 16 is sleeved on the rotating shaft 3 between the flange 11 and the pivot arm 4. The lower end of the rotating shaft 3 is screwed to the third locking nut 17 and the stop nut 18. The height of the pivot arm 4 can be adjusted by selecting the height of the second bushing 16. When the height of the pivot arm 4 needs to be lowered, a longer second bushing 16 can be installed, otherwise a shorter second bushing 16 can be installed.

[0030] The automatic switching arm mechanism can be installed in multiple sets on the slider 1 or workbench of the hydraulic press to meet the needs of punches of various specifications. During operation, the swing cylinder 6 drives the shaft 3 to rotate, and the cantilever 5 moves outside the machine. According to the process height requirements, the second bushing 16 with appropriate height is replaced to adjust the height of the arm 4. After the punch sleeve is installed on the cantilever 5, the swing cylinder 6 drives the shaft 3, and the punch is transferred from the outside of the machine to the center position inside the machine. The slider 1 moves downward, and the punch contacts the forging and is lifted to the specified position. Then, the main cylinder of the hydraulic press presses the punch to expand the forging. If the punch needs to be replaced, the slider 1 moves upward, the current automatic switching arm mechanism moves outside the machine, and the punch of another set of automatic switching arm mechanism moves to the center position inside the machine. The above actions are repeated again to complete the punching of the forging. The punch moved outside the machine can also be sprayed to cool down, and different types of punches can be replaced again.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic switching arm mechanism for a forging punch of a hydraulic press, comprising a slide block and a workbench of the hydraulic press, wherein at least one set of automatic switching arm mechanism is installed on the slide block or the workbench, and is characterized in that: The automatic switching arm mechanism includes a fixed plate, a rotating shaft, a rotating arm, a cantilever and a swinging cylinder. The fixed plate is relatively installed on the slider, the rotating shaft is vertically installed between the fixed plates, the swinging cylinder is installed on the top surface of the slider and drives the rotating shaft to rotate, the rotating arm can be installed on the rotating shaft with height adjustment, and the cantilever can be detachably installed on the rotating arm, and a punch mounting hole is formed on it.

2. The automatic switching arm mechanism for forging punches of a hydraulic press according to claim 1 is characterized in that: The swing oil cylinder is connected to the rotating shaft through a pin key to drive the rotating shaft to rotate.

3. The automatic switching arm mechanism for forging punches of a hydraulic press according to claim 1 is characterized in that: The fixed plates are all equipped with spherical roller bearings.

4. The automatic switching arm mechanism for forging punches of a hydraulic press according to claim 1 is characterized in that: A first bushing and a first locking nut are installed above the upper fixing plate, and a flange is screwed on the bottom surface of the lower fixing plate. A dust ring, a dust pressure plate and a second locking nut are installed inside the flange.

5. The automatic arm switching mechanism for forging punches of a hydraulic press according to claim 4 is characterized in that: A mounting frame is fixed on the top surface of the upper fixing plate, and the swing oil cylinder is fixed on the mounting frame.

6. The automatic switching arm mechanism for forging punches of a hydraulic press according to claim 4 is characterized in that: The rotating arm is sleeved on the rotating shaft through a pin key, the second bushing is sleeved on the rotating shaft between the flange and the rotating arm, and the lower end of the rotating shaft is threadedly connected to a third locking nut and a stop nut.

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