Replacing mechanism for pressing block of electric hydraulic machine

Abstract

The utility model provides a replacement mechanism for a pressing block of an electric hydraulic machine, and belongs to the technical field of hydraulic machines. Comprising a hydraulic machine body, a mounting plate is vertically and slidably arranged on the hydraulic machine body, a mounting table used for placing a workpiece is arranged on the hydraulic machine body and below the mounting plate, a pressing block is detachably connected to the mounting plate, two clamping plates are arranged on the mounting plate at intervals, and a mounting cavity used for allowing one end of the pressing block to be inserted in is formed between the two clamping plates; the two clamping plates are provided with driving pieces used for driving the two clamping plates to get close to each other to clamp the pressing block, the driving pieces comprise threaded sleeves, the two clamping plates are two symmetrical arc-shaped plates, and the arc-shaped outer walls of the two clamping plates are provided with external threads used for being connected with the threaded sleeves in a matched mode. One end of the threaded sleeve is provided with a spherical inner wall in extrusion contact with the edge of the arc-shaped outer wall of the clamping plate. The effect of improving the disassembly and assembly convenience of the pressing block is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a replacement mechanism for a pressing block of an electric hydraulic press. Background Art

[0002] A hydraulic press is a machine that uses the static pressure of liquid to process metal, plastic, rubber, wood, powder and other products. It is often used in pressing and forming processes such as forging, stamping, pressing and so on.

[0003] In modern industry, many factories use electrohydraulic presses to process workpieces. These presses consist of a main body, a pressure block, and a mounting platform. The mounting platform is mounted on one side of the main body, and the pressure block slides vertically on the main body, above the mounting platform. To enable the press to perform a variety of processing operations, workers need to replace the corresponding pressure blocks. Therefore, a mechanism for replacing the pressure blocks in an electrohydraulic press is needed. Utility Model Content

[0004] In view of the above problems, the utility model provides a replacement mechanism for a pressing block of an electric hydraulic press.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is as follows:

[0006] A replacement mechanism for an electric hydraulic press pressure block is provided, comprising a hydraulic press main body, a mounting plate vertically slidingly arranged on the hydraulic press main body, a mounting platform for placing a workpiece arranged below the mounting plate on the hydraulic press main body, a pressure block detachably connected to the mounting plate, two clamping plates spaced apart on the mounting plate, a mounting cavity for inserting one end of the pressure block is formed between the two clamping plates, and a driving member for driving the two clamping plates to approach each other to clamp the pressure block is provided on the two clamping plates.

[0007] Furthermore, the driving member includes a threaded sleeve, the two clamps are arranged as two symmetrical arc-shaped plates, and the arc-shaped outer walls of the two clamps are provided with external threads for cooperating with the threaded sleeve, and one end of the threaded sleeve is provided with a spherical inner wall for extrusion contact with the edge of the arc-shaped outer wall of the clamp.

[0008] Furthermore, an insert block is provided on the arc-shaped inner wall of the two splints, and a flat opening for avoiding the insert block is opened on the outer wall of the end of the pressure block for inserting into the installation cavity, and an insert groove is opened between the two flat openings on the outer wall of the pressure block, and one end of the pressure block can be rotated to allow the insert block to be inserted into the insert groove.

[0009] Furthermore, a flexible pad is provided on the arc-shaped inner wall of the clamping plate for being in compression contact with the outer wall of the pressing block.

[0010] Furthermore, a limiter is provided on the splint for limiting the rotation of the pressure block, and the limiter includes a plurality of pins. A plurality of grooves with inner diameters matching the pins are provided on the outer wall of the pressure block. Through holes for communicating with the grooves are provided on the splint and the flexible pad, and the plurality of pins pass through the through holes and are inserted into the grooves.

[0011] Furthermore, the groove is arranged at an angle, and the opening of the groove is higher than the inner bottom wall of the groove, so that the pin can be inserted into the groove at an angle, and the threaded sleeve is movably abutted against the outer wall of the pin.

[0012] The beneficial effects of the present invention are as follows: the staff can insert one end of the pressing block into the installation cavity, and then rotate the threaded sleeve so that it can be threadedly connected to the two clamping plates. In the process of rotating the threaded sleeve, the threaded sleeve moves vertically upward, which can make the spherical inner wall of its own end slide into contact with the edge of the arc-shaped outer wall of the clamping plate, and then squeeze each other, so as to achieve the purpose of driving the two clamping plates to clamp the pressing block together; when removing the pressing block, the staff can rotate the threaded sleeve in the opposite direction and make the two clamping plates loosen the pressing block, so as to replace the pressing block, which has the effect of improving the convenience of disassembly and assembly of the pressing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a replacement mechanism for an electric hydraulic press briquette according to an embodiment of the present application.

[0014] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A.

[0015] Figure 3 This is a schematic diagram of the assembly of a pressing block and a mounting plate of a pressing block replacement mechanism for an electric hydraulic press according to an embodiment of the present application.

[0016] Among them, 1. Hydraulic press body; 11. Mounting table; 12. Pressure block; 121. Flat mouth; 122. Insertion slot; 123. Groove; 2. Mounting plate; 3. Clamp; 31. Through hole; 4. Driving part; 41. Threaded sleeve; 411. Spherical inner wall; 5. Insert block; 6. Flexible pad; 7. Pin. DETAILED DESCRIPTION

[0017] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] The present application discloses a replacement mechanism for a pressure block of an electric hydraulic press, referring to Figure 1 、 Figure 2 and Figure 3The hydraulic press comprises a main body 1 on which a mounting plate 2 is vertically slidably mounted. A mounting platform 11 for placing a workpiece is integrally fixed to the main body 1 below the mounting plate 2. A pressure block 12 is detachably connected to the mounting plate 2. Two clamping plates 3 are spaced apart and mounted on the mounting plate 2. A mounting cavity for inserting one end of the pressure block 12 is formed between the two clamping plates 3. A driving member 4 is mounted on the two clamping plates 3 for driving the two clamping plates 3 toward each other to clamp the pressure block 12.

[0019] In this embodiment of the present application, a worker inserts one end of the pressing block 12 into the mounting cavity. The driver 4 then drives the two clamping plates 3 toward each other, clamping the pressing block 12, thereby mounting the pressing block 12 on the mounting plate 2. Finally, the hydraulic press body 1 is activated to drive the mounting plate 2 to move vertically, allowing the pressing block 12 to process the workpiece on the mounting table 11. This improves the ease of installation of the pressing block 12.

[0020] Specifically, the driving member 4 includes a threaded sleeve 41, the two clamps 3 are set as two symmetrical arc-shaped plates, and the arc-shaped outer walls of the two clamps 3 are provided with external threads for cooperating with the threaded sleeve 41, and one end of the threaded sleeve 41 is provided with a spherical inner wall 411 for extrusion contact with the edge of the arc-shaped outer wall of the clamp 3.

[0021] In the embodiment of the present application, after inserting the pressure block 12 into the installation cavity, the staff can rotate the threaded sleeve 41 so that it can be threadedly connected to the two clamping plates 3. During the rotation of the threaded sleeve 41, the threaded sleeve 41 moves vertically upward, allowing the spherical inner wall 411 at its end to slide into contact with the curved outer wall edge of the clamping plate 3, thereby squeezing each other, thereby driving the two clamping plates 3 to jointly clamp the pressure block 12. When removing the pressure block 12, the staff can rotate the threaded sleeve 41 in the opposite direction to loosen the pressure block 12 between the two clamping plates 3, and then replace the pressure block 12. This has the effect of improving the convenience of disassembly and assembly of the pressure block 12.

[0022] Furthermore, an insert block 5 is integrally fixed on the arc-shaped inner wall of the two splints 3, and a flat opening 121 for avoiding the insert block 5 is provided on the outer wall of the end of the pressure block 12 for inserting into the installation cavity, and an insertion groove 122 is provided on the outer wall of the pressure block 12 between the two flat openings 121, and one end of the pressure block 12 can be rotated to allow the insert block 5 to be inserted into the insertion groove 122.

[0023] In the embodiment of the present application, after inserting one end of the pressing block 12 into the installation cavity, the operator can rotate the pressing block 12 to allow the inserting block 5 to be inserted into the insertion groove 122 to limit the vertical movement of the pressing block 12 relative to the clamping plate 3. Then, the threaded sleeve 41 is rotated to drive the two clamping plates 3 to clamp the pressing block 12. In this way, the installation stability of the pressing block 12 between the two clamping plates 3 can be improved.

[0024] Furthermore, a flexible pad 6 is provided on the arc-shaped inner wall of the clamping plate 3 for being in compression contact with the outer wall of the pressing block 12 .

[0025] In the embodiment of the present application, the flexible pad 6 can be made of a flexible material such as rubber. The flexible pad 6 can increase the friction force on the outer wall of the pressing block 12, further improving the installation stability of the pressing block 12 between the two clamping plates 3.

[0026] Furthermore, a stopper is mounted on the clamping plate 3 to limit the rotation of the pressure block 12. The stopper includes multiple pins 7. The outer wall of the pressure block 12 is provided with multiple grooves 123 with inner diameters matching those of the pins 7. Through holes 31 are formed in both the clamping plate 3 and the flexible pad 6 to communicate with the grooves 123. The multiple pins 7 pass through the through holes 31 and are then inserted into the grooves 123.

[0027] In the embodiment of the present application, multiple pins 7 pass through the through hole 31 and are inserted into the groove 123, which can limit the rotation of the pressure block 12 in the installation cavity, further improving the installation stability of the pressure block 12 between the two clamping plates 3.

[0028] Furthermore, the groove 123 is arranged at an angle, and the opening of the groove 123 is higher than the inner bottom wall of the groove 123 , so that the latch 7 can be inserted into the groove 123 at an angle, and the threaded sleeve 41 is movably abutted against the outer wall of the latch 7 .

[0029] In the embodiment of the present application, when the staff rotates the threaded sleeve 41 to clamp the two clamping plates 3 to the pressure block 12, one end of the threaded sleeve 41 can also abut the outer wall of the pin 7, thereby improving the installation stability of the pin 7 on the pressure block 12 and the clamping plates 3.

[0030] The implementation principle of the replacement mechanism of the pressure block of an electric hydraulic press in the embodiment of the present application is as follows: the staff can insert one end of the pressure block 12 into the installation cavity, and then rotate the threaded sleeve 41 so that it can be threadedly connected to the two clamping plates 3. In the process of rotating the threaded sleeve 41, the threaded sleeve 41 moves vertically upward, which can make the spherical inner wall 411 at its end slide and contact with the edge of the curved outer wall of the clamping plate 3, and then squeeze each other, so as to achieve the purpose of driving the two clamping plates 3 to clamp the pressure block 12 together. When removing the pressure block 12, the staff can rotate the threaded sleeve 41 in the opposite direction and make the two clamping plates 3 loosen the pressure block 12, and then replace the pressure block 12. This has the effect of improving the convenience of disassembly and assembly of the pressure block 12.

[0031] Those skilled in the art will appreciate that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the underlying inventive concepts. Therefore, the appended claims are intended to be interpreted as encompassing the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, the present invention is intended to encompass such changes and modifications as fall within the scope of the claims and their equivalents.

Claims

1. A mechanism for replacing a briquette of an electric hydraulic press, characterized by: The invention comprises a hydraulic press body (1), a mounting plate (2) is vertically slidably provided on the hydraulic press body (1), a mounting platform (11) for placing a workpiece is provided on the hydraulic press body (1) below the mounting plate (2), a pressure block (12) is detachably connected to the mounting plate (2), two clamping plates (3) are spaced apart on the mounting plate (2), a mounting cavity for inserting one end of the pressure block (12) is formed between the two clamping plates (3), and a driving member (4) is provided on the two clamping plates (3) for driving the two clamping plates (3) to approach each other to clamp the pressure block (12).

2. The mechanism for replacing a briquette of an electro-hydraulic press according to claim 1, characterized in that: The driving member (4) includes a threaded sleeve (41), the two clamping plates (3) are configured as two symmetrical arc-shaped plates, and the arc-shaped outer walls of the two clamping plates (3) are provided with external threads for cooperating with the threaded sleeve (41), and one end of the threaded sleeve (41) is provided with a spherical inner wall (411) for extruding and contacting the edge of the arc-shaped outer wall of the clamping plate (3).

3. The mechanism for replacing a briquette of an electro-hydraulic press according to claim 2, characterized in that: An insert block (5) is provided on the arc-shaped inner wall of each of the two clamping plates (3); a flat opening (121) for avoiding the insert block (5) is provided on the outer wall of the end of the pressure block (12) for inserting into the installation cavity; an insertion groove (122) is provided on the outer wall of the pressure block (12) between the two flat openings (121); one end of the pressure block (12) can be rotated to allow the insert block (5) to be inserted into the insertion groove (122).

4. The mechanism for replacing a briquette of an electro-hydraulic press according to claim 2, characterized in that: A flexible pad (6) is provided on the arc-shaped inner wall of the clamping plate (3) for extrusion contact with the outer wall of the pressing block (12).

5. The mechanism for replacing a briquette of an electro-hydraulic press according to claim 3, characterized in that: The clamping plate (3) is provided with a limiter for limiting the rotation of the pressure block (12), and the limiter includes a plurality of latches (7). The outer wall of the pressure block (12) is provided with a plurality of grooves (123) whose inner diameters match the latches (7). The clamping plate (3) and the flexible pad (6) are both provided with through holes (31) for communicating with the grooves (123). The plurality of latches (7) pass through the through holes (31) and are inserted into the grooves (123).

6. The mechanism for replacing a briquette of an electro-hydraulic press according to claim 5, characterized in that: The groove (123) is arranged at an angle, and the opening of the groove (123) is higher than the inner bottom wall of the groove (123), so that the latch (7) can be inserted into the groove (123) at an angle, and the threaded sleeve (41) is in movable contact with the outer wall of the latch (7).

Images