Cold extrusion forming oil press

Abstract

The utility model discloses a cold extrusion forming oil press, and particularly relates to the technical field of oil presses, which comprises a machine body, and a control box, a processing platform and an extrusion mechanism which are arranged on the machine body, the clamping mechanism comprises clamping pieces symmetrically arranged on the two sides of the machining platform and a power piece driving the two clamping pieces to move relatively. Each clamping piece comprises a clamping plate, an arc-shaped clamping part is formed on one side of the clamping plate, a detachable base plate is arranged on the arc-shaped clamping part, and a straight clamping part is formed on the side, away from the arc-shaped clamping part, of the base plate; due to the arrangement of the clamping piece composed of the clamping plate and the base plate, and the base plate is of a detachable structure, the clamping piece can adapt to workpieces of different shapes, stable clamping of the workpieces of different shapes is achieved, the clamping effect of the clamping piece on the workpieces can be improved, and then efficient extrusion forming of the workpieces is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a cold extrusion forming hydraulic press. Background Art

[0002] A hydraulic press is a type of hydraulic machine. It mainly uses special hydraulic oil as the working medium, uses a hydraulic pump as the power source, and relies on the action of the pump to make the hydraulic oil enter the oil cylinder / piston through the hydraulic pipeline. Then, there are several groups of mutually cooperating seals in the oil cylinder / piston. The seals at different positions are different, but they all play a sealing role to prevent the hydraulic oil from leaking. Finally, the hydraulic oil circulates in the oil tank through a one-way valve to make the oil cylinder / piston perform cyclic work, so as to complete a certain mechanical action as a mechanical device for productivity.

[0003] For example, in the Chinese patent with the publication number CN217047569U, a cold extrusion forming hydraulic press is disclosed. A hydraulic tank is installed on the top of the device top plate. When the device is in use, the staff can drive the lead screw to rotate by rotating the runner. At this time, two threaded blocks can be driven to move in the direction of approaching each other. At this time, the fixed plates installed on the tops of the two connecting plates can be driven to clamp the hydraulic object, fix the hydraulic object, prevent the hydraulic deviation of the device, and improve the accuracy of the hydraulic pressure. However, during actual processing, the shapes of the workpieces may be different. However, the clamping plates of the above-mentioned hydraulic press can only stably clamp the workpieces with a square structure. If the workpiece is an arc-shaped structure, it is difficult for the clamping plate to stably clamp the workpiece, resulting in the clamping plate being unable to adapt to the clamping of workpieces with different shapes, resulting in poor clamping effect of the clamping plate, and thus being disadvantageous to the forming processing of workpieces with different shapes. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cold extrusion forming hydraulic press to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cold extrusion forming hydraulic press includes a machine body, as well as a control box, a processing platform and an extrusion mechanism arranged on the machine body. A clamping mechanism is also arranged on the machine body, and the clamping mechanism includes clamping members symmetrically arranged on both sides of the processing platform, and a power member for driving the two clamping members to move relatively;

[0006] Each clamping member includes a clamping plate. An arc-shaped clamping portion is formed on one side of the clamping plate, and a detachable cushion plate is arranged on the arc-shaped clamping portion. A flat clamping portion is formed on the side of the cushion plate away from the arc-shaped clamping portion.

[0007] Preferably, one side of the backing plate adjacent to the clamping plate forms an arc surface that cooperates with the arc-shaped clamping portion, and a plugging strip is installed on the arc surface. A plugging groove for the plugging strip to be plugged into is provided on the clamping plate. A screw hole is provided on the side of the clamping plate opposite to the arc-shaped clamping portion, and a locking screw is screwed in the screw hole. A threaded hole for the locking screw to be screwed into is provided on one side of the plugging strip.

[0008] Preferably, the power member includes two cavity grooves opened on the machine body and a bidirectional threaded rod rotatably installed in the two cavity grooves. Two moving plates are screwed to the bidirectional threaded rod through threads, and the two moving plates are respectively located in the two cavity grooves. One end of the bidirectional threaded rod extends to the outside of the machine body and is provided with an adjusting handwheel. The two clamping plates are respectively installed on the opposite sides of the two moving plates.

[0009] Preferably, the extrusion mechanism includes four sliding rods fixed on the machine body. A top plate is commonly installed at the tops of the four sliding rods, and a hydraulic cylinder is fixed on the top of the top plate. The telescopic end of the hydraulic cylinder extends below the top plate and is connected with a movable plate. A pressing plate corresponding to the processing platform is installed at the bottom of the movable plate. The movable plate is sleeved outside the four sliding rods.

[0010] Preferably, limiting strips are fixed on both sides of the inner wall of the cavity groove, and limiting grooves for the limiting strips to slide are opened on both sides of the bottom of the moving plate.

[0011] Preferably, reinforcing rib plates are installed on both sides of the moving plate, and one sides of the two reinforcing rib plates are fixedly connected with the clamping plate.

[0012] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0013] Through the arrangement of the clamping member composed of the clamping plate and the backing plate, and the backing plate is a detachable structure. When clamping a workpiece, if the workpiece is a square structure, the workpiece can be directly clamped through the straight clamping portion on one side of the backing plate. If the workpiece is an arc-shaped structure, the backing plate can be detached from the clamping plate, and the arc-shaped workpiece can be clamped through the arc-shaped clamping portion, so that the clamping member can adapt to workpieces of different shapes, realize stable clamping of workpieces of different shapes, improve the clamping effect of the clamping member on the workpiece, and further facilitate the efficient extrusion molding of the workpiece. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0015] Figure 1 One of the overall structural schematic diagrams of the present utility model;

[0016] Figure 2 Another overall structural schematic diagram of the present utility model;

[0017] Figure 3 For the present utility model Figure 1 The structural schematic diagram when the clamping member is adjusted in the present utility model;

[0018] Figure 4 The structural schematic diagram of the clamping member of the present utility model;

[0019] Figure 5 For the present utility model Figure 1 The partial cross-sectional view of the machine body in the present utility model;

[0020] Figure 6 For the present utility model Figure 3 The partial cross-sectional view of the machine body in the present utility model;

[0021] Figure 7 For the present utility model Figure 5 The enlarged view at position A in the present utility model;

[0022] Figure 8 For the present utility model Figure 6 The enlarged view at position B in the present utility model.

[0023] Explanation of reference numerals:

[0024] 1. Machine body; 2. Control box; 3. Top plate; 4. Hydraulic cylinder; 5. Processing platform; 6. Clamping mechanism; 61. Adjusting handwheel; 62. Moving plate; 63. Clamping member; 631. Clamping plate; 6311. Arc-shaped clamping part; 632. Pad; 6321. Straight clamping part; 633. Insertion bar; 634. Insertion groove; 635. Locking screw; 636. Screw hole; 64. Bidirectional threaded rod; 7. Movable plate; 8. Slide bar; 9. Pressing plate. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0026] The present utility model provides a cold extrusion forming hydraulic press as Figures 1 - 8 shown, including a machine body 1, a control box 2, a processing platform 5 and an extrusion mechanism arranged on the machine body 1. A clamping mechanism 6 is also arranged on the machine body 1, and the clamping mechanism 6 includes clamping members 63 symmetrically arranged on both sides of the processing platform 5, and a power member for driving the two clamping members 63 to move relatively;

[0027] Each clamping member 63 includes a clamping plate 631. An arc-shaped clamping portion 6311 is formed on one side of the clamping plate 631, and a detachable backing plate 632 is provided on the arc-shaped clamping portion 6311. A flat clamping portion 6321 is formed on the side of the backing plate 632 away from the arc-shaped clamping portion 6311.

[0028] Further, as Figure 4 , Figure 7 and Figure 8 shown, an arc surface matching the arc-shaped clamping portion 6311 is formed on the side of the backing plate 632 adjacent to the clamping plate 631, and a plug-in strip 633 is installed on the arc surface. A plug-in slot 634 for the plug-in strip 633 to be inserted into is formed on the clamping plate 631. A screw hole 636 is formed on the side of the clamping plate 631 opposite to the arc-shaped clamping portion 6311, and a locking screw 635 is screwed into the screw hole 636. A threaded hole for the locking screw 635 to be screwed into is formed on one side of the plug-in strip 633.

[0029] During processing, the workpiece can be placed on the processing platform 5, and then the two clamping members 63 are driven to move by the power member, so that the two clamping members 63 clamp and fix the workpiece. Subsequently, the control box 2 controls the extrusion mechanism to extrude the workpiece on the processing platform 5 to extrude the workpiece into the required shape, thereby completing the extrusion molding of the workpiece;

[0030] Moreover, when the clamping member 63 clamps the workpiece, if the workpiece is of a square structure, the workpiece can be directly clamped by the flat clamping portion 6321 on one side of the backing plate 632. If the workpiece is of an arc-shaped structure, the locking screw 635 is unscrewed from the screw hole 636, and then the backing plate 632 is pulled to drive the plug-in strip 633 to move out of the plug-in slot 634, so as to remove the backing plate 632 from the clamping plate 631, expose the arc-shaped clamping portion 6311 on one side of the clamping plate 631, and clamp the arc-shaped workpiece by the arc-shaped clamping portion 6311, so that the clamping member 63 can adapt to workpieces of different shapes, conveniently clamp workpieces of different shapes stably, without replacing the fixture, and thus is beneficial to the efficient extrusion molding of the workpiece.

[0031] Specifically, regarding the above-mentioned power member, as Figures 1 - 3 as well as Figure 5 and Figure 6 shown:

[0032] The power member includes two cavity grooves formed on the machine body 1 and a bidirectional threaded rod 64 rotatably installed in the two cavity grooves. Two moving plates 62 are threadedly engaged with the bidirectional threaded rod 64, and the two moving plates 62 are respectively located in the two cavity grooves. One end of the bidirectional threaded rod 64 extends to the outside of the machine body 1 and is provided with an adjusting handwheel 61. The two clamping plates 631 are respectively installed on the opposite sides of the two moving plates 62.

[0033] When the power component drives the clamping component 63 to move, the two-way threaded rod 64 can be rotated by adjusting the handwheel 61, so that the two-way threaded rod 64 drives the two moving plates 62 to move along the two cavity grooves respectively. Subsequently, the two moving plates 62 drive the two clamping components 63 to move relatively, so as to realize the clamping or loosening of the workpiece, thus facilitating the rapid clamping of the workpiece.

[0034] Specifically, regarding the above-mentioned extrusion mechanism, as Figures 1 - 3 shown:

[0035] The extrusion mechanism includes four slide rods 8 fixed on the machine body 1. The top of the four slide rods 8 is jointly provided with a top plate 3, and a hydraulic cylinder 4 is fixed on the top of the top plate 3. The telescopic end of the hydraulic cylinder 4 extends below the top plate 3 and is connected with a movable plate 7. A pressing plate 9 corresponding to the processing platform 5 is installed at the bottom of the movable plate 7, and the movable plate 7 is sleeved outside the four slide rods 8.

[0036] When the extrusion mechanism extrudes the workpiece into shape, the hydraulic cylinder 4 can be used to drive the movable plate 7 to descend along the slide rod 8, so that the movable plate 7 drives the pressing plate 9 to descend until the pressing plate 9 presses on the workpiece clamped on the top of the processing platform 5, so as to realize the cold extrusion forming of the workpiece. After forming, the hydraulic cylinder 4 is used to drive the movable plate 7 to rise along the slide rod 8 again, so that the movable plate 7 drives the pressing plate 9 to rise and reset, thus facilitating the removal of the workpiece from the processing platform 5 and realizing the rapid material taking of the hydraulic press;

[0037] It should be noted that the hydraulic cylinder 4 in this embodiment is connected to an external hydraulic system, and the opening and closing of the hydraulic pump in the hydraulic system can be controlled through the control box 2 to realize the telescopic movement of the telescopic end of the hydraulic cylinder 4. The principle and structure are both prior arts and will not be elaborated here.

[0038] Furthermore, in order to realize the stable movement of the moving plate 62 along the cavity groove, as Figure 5 and Figure 6 shown, limiting strips are fixed on both sides of the inner wall of the cavity groove, and limiting grooves for the limiting strips to slide are provided on both sides of the bottom of the moving plate 62.

[0039] Furthermore, in order to increase the stability during the installation between the moving plate 62 and the clamping plate 631, as Figure 5 and Figure 6 shown, reinforcing rib plates are installed on both sides of the moving plate 62, and one side of the two reinforcing rib plates is fixedly connected to the clamping plate 631.

[0040] Only some exemplary embodiments of the present utility model are described by way of illustration. Without doubt, for those of ordinary skill in the art, various modifications can be made to the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A cold extrusion forming hydraulic press, comprising a machine body (1), a control box (2), a processing platform (5) and an extrusion mechanism arranged on the machine body (1), characterized in that: A clamping mechanism (6) is further arranged on the machine body (1), and the clamping mechanism (6) includes clamping members (63) symmetrically arranged on both sides of the processing platform (5) and a power member for driving the two clamping members (63) to move relatively; Each of the clamping members (63) includes a clamping plate (631). An arc-shaped clamping portion (6311) is formed on one side of the clamping plate (631). A detachable cushion plate (632) is arranged on the arc-shaped clamping portion (6311). A flat clamping portion (6321) is formed on the side of the cushion plate (632) away from the arc-shaped clamping portion (6311).

2. The cold extrusion forming hydraulic press according to claim 1, characterized in that: An arc surface matching the arc-shaped clamping portion (6311) is formed on the side of the cushion plate (632) adjacent to the clamping plate (631). A plugging strip (633) is installed on the arc surface. A plugging groove (634) for the plugging strip (633) to be plugged into is formed on the clamping plate (631). A screw hole (636) is formed on the side of the clamping plate (631) opposite to the arc-shaped clamping portion (6311). A locking screw (635) is screwed in the screw hole (636). A threaded hole for the locking screw (635) to be screwed into is formed on one side of the plugging strip (633).

3. A cold extrusion forming hydraulic press according to claim 1, characterized in that: The power member includes two cavity grooves formed on the machine body (1) and a bidirectional threaded rod (64) rotatably installed in the two cavity grooves. Two moving plates (62) are threadedly engaged with the bidirectional threaded rod (64). The two moving plates (62) are respectively located in the two cavity grooves. One end of the bidirectional threaded rod (64) extends to the outside of the machine body (1) and is provided with an adjusting handwheel (61). The two clamping plates (631) are respectively installed on the opposite sides of the two moving plates (62).

4. A cold extrusion forming hydraulic press according to claim 1, characterized in that: The pressing mechanism includes four sliding rods (8) fixed on the machine body (1). A top plate (3) is jointly installed at the tops of the four sliding rods (8). A hydraulic cylinder (4) is fixed on the top of the top plate (3). The telescopic end of the hydraulic cylinder (4) extends below the top plate (3) and is connected with a movable plate (7). A pressing plate (9) corresponding to the processing platform (5) is installed at the bottom of the movable plate (7). The movable plate (7) is sleeved outside the four sliding rods (8).

5. The cold extrusion forming hydraulic press according to claim 3, wherein: Limiting strips are fixed on both sides of the inner wall of the cavity groove. Limiting grooves for the limiting strips to slide are formed on both sides of the bottom of the moving plate (62).

6. The cold extrusion forming hydraulic press according to claim 3, characterized in that: Reinforcing rib plates are installed on both sides of the moving plate (62). One sides of the two reinforcing rib plates are fixedly connected with the clamping plate (631).

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