Hydraulic machine guide structure

Abstract

The utility model discloses a kind of hydraulic machine guiding structure, it includes four guide rods mounted on punch forming machine, the surface of four The guide rod is slidably connected with sliding seat, the four corners of sliding seat bottom are all installed with the guide sleeve sliding on the surface of guide rod, the surface of guide sleeve annular array is equipped with three rectangular cavities, the inner cavity of rectangular cavity is fixedly connected with shaft pin. The utility model is rotated by operating threaded sleeve, threaded sleeve then because thread is moved downward on the surface of guide sleeve, it will be moved to the outside of rectangular cavity inner cavity in the process of moving, until with the inclined surface of clamping swing block contact, clamping swing block will be rotated with shaft pin as shaft, so that the positioning pulley on clamping swing block is attached on the surface of guide rod, three clamping swing blocks rotate simultaneously, play the purpose of central extrusion, positioning pulley can also roll on the surface of guide rod, that is, the way of central extrusion can be achieved, ensure the stability between guide sleeve and stand, and then ensure the purpose of guiding precision.

Description

Technical Field

[0001] This utility model belongs to the technical field of forming hydraulic press, and in particular relates to a hydraulic press guide structure. Background Technology

[0002] Common guiding structures for forming hydraulic presses include four-column guiding structures, which use round guide sleeves on four columns for guidance. When the slider moves up and down, the guide sleeves slide along the surface of the columns to guide the slider. When there is an off-center load, the guide sleeves provide precise and tight guidance. If there is a slight deviation between the guide sleeves and the guide rods, there will be a gap between the guide sleeves and the columns, which will affect the guiding accuracy. Therefore, we designed a guiding structure that uses a central extrusion method to ensure the stability between the guide sleeves and the columns, thereby ensuring the guiding accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic press guide structure that uses a centrally located extrusion method to ensure stability between the guide sleeve and the column, thereby ensuring guiding accuracy, in order to solve the aforementioned technical problems.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A hydraulic press guide structure includes four guide rods installed on a stamping forming machine. The surfaces of the four guide rods are slidably connected to sliding seats. Guide sleeves that slide on the surface of the guide rods are installed at the four corners of the bottom of the sliding seats. Three rectangular cavities are arranged in a circular array on the surface of the guide sleeves. A shaft pin is fixedly connected to the inner cavity of the rectangular cavity. A clamping block is slidably connected to the surface of the shaft pin. A rotatable positioning pulley is installed on the inner side of the clamping block. The surface of the guide sleeve is provided with external threads. A threaded sleeve is threadedly connected to the surface of the guide sleeve.

[0005] Preferably, the surface of the positioning pulley is provided with an arc-shaped groove that fits into the surface of the guide rod.

[0006] Preferably, the top of the clamping block is provided with a notch, and the inner cavity of the notch is provided with a torsion spring sleeved on the surface of the shaft pin. The two ends of the torsion spring are respectively fixedly connected to the clamping block and the side wall of the rectangular cavity.

[0007] Preferably, the outer side of the threaded sleeve is hexagonal.

[0008] Preferably, the outer side of the clamping block is set as an inclined surface, which is adapted to the threaded sleeve.

[0009] The beneficial effects of this utility model are: 1. This utility model operates by rotating the threaded sleeve, which moves downward on the surface of the guide sleeve due to the thread. During the movement, the threaded sleeve moves to the outside of the rectangular cavity until it contacts the inclined surface of the clamping block. The clamping block then rotates around the pivot pin, causing the positioning pulley on the clamping block to fit against the surface of the guide rod. The three clamping blocks rotate simultaneously, achieving the purpose of central compression. The positioning pulley can also roll on the surface of the guide rod, thus achieving the purpose of central compression to ensure the stability between the guide sleeve and the column, thereby ensuring the guiding accuracy. 2. By setting the arc groove, this utility model can increase the contact between the positioning pulley and the guide rod, improve the stability of the positioning pulley rolling on the surface of the guide rod, and thus improve the stability of the guide sleeve sliding on the surface of the guide rod. 3. By incorporating a torsion spring, this utility model enables the clamping blocks to rotate outward, thus preventing the three clamping blocks from swinging freely inward and affecting the installation between the guide sleeve and the guide rod. Attached Figure Description

[0010] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a schematic diagram of one embodiment of the present utility model; Figure 2 This is a three-dimensional schematic diagram of the guide rod and guide sleeve according to an embodiment of the present invention; Figure 3 This is a three-dimensional disassembled schematic diagram of the guide rod and guide sleeve according to an embodiment of the present invention; Figure 4 This is a three-dimensional disassembled schematic diagram of the guide sleeve and the clamping block according to one embodiment of the present utility model.

[0011] The attached diagram lists the components represented by each number as follows: 1. Stamping forming machine; 2. Guide rod; 3. Sliding seat; 4. Guide sleeve; 5. Rectangular cavity; 6. Shaft pin; 7. Clamping block; 8. Positioning pulley; 9. Threaded sleeve; 10. Arc groove; 11. Notch; 12. Torsion spring. Detailed Implementation

[0012] In the following description, embodiments of the hydraulic press guide structure of the present invention will be described with reference to the accompanying drawings.

[0013] Figures 1-4This invention illustrates a hydraulic press guide structure according to an embodiment of the present invention. It includes four guide rods 2 mounted on a stamping machine 1. Sliding seats 3 are slidably connected to the surfaces of the four guide rods 2. Guide sleeves 4, which slide on the surfaces of the guide rods 2, are installed at the four corners of the bottom of the sliding seats 3. Three rectangular cavities 5 are arranged in a circular array on the surface of each guide sleeve 4. A shaft pin 6 is fixedly connected to the inner cavity of each rectangular cavity 5. A clamping block 7 is slidably connected to the surface of the shaft pin 6. A rotatable positioning pulley 8 is installed on the inner side of the clamping block 7. A notch 11 is provided at the top of the clamping block 7. A torsion spring 12, sleeved on the surface of the shaft pin 6, is provided inside the notch 11. The two ends of the torsion spring 12 are fixedly connected to the side walls of the clamping block 7 and the rectangular cavity 5, respectively. The setting of 2, the torsion spring 12 can make the clamping swing block 7 have an outward rotation force, which can prevent the three clamping swing blocks 7 from swinging freely inward, affecting the installation between the guide sleeve 4 and the guide rod 2. The surface of the positioning pulley 8 is provided with an arc groove 10 that fits with the surface of the guide rod 2. The setting of the arc groove 10 can increase the contact degree between the positioning pulley 8 and the guide rod 2, improve the rolling stability of the positioning pulley 8 on the surface of the guide rod 2, and thus improve the sliding stability of the guide sleeve 4 on the surface of the guide rod 2. The surface of the guide sleeve 4 is provided with an external thread, and the surface of the guide sleeve 4 is threadedly connected to a threaded sleeve 9. The outer side of the threaded sleeve 9 is hexagonal, and the outer side of the clamping swing block 7 is set as an inclined surface, which is adapted to the threaded sleeve 9.

[0014] The beneficial effects of this utility model are: 1. This utility model operates by rotating the threaded sleeve 9, which moves downward on the surface of the guide sleeve 4 due to the thread. During the movement, the threaded sleeve 9 moves to the outside of the inner cavity of the rectangular cavity 5 until it contacts the inclined surface of the clamping block 7. The clamping block 7 then rotates around the shaft pin 6, causing the positioning pulley 8 on the clamping block 7 to fit against the surface of the guide rod 2. The three clamping blocks 7 rotate simultaneously, achieving the purpose of central compression. The positioning pulley 8 can also roll on the surface of the guide rod 2, thus achieving the purpose of central compression to ensure the stability between the guide sleeve and the column, thereby ensuring the guiding accuracy. 2. By setting the arc groove 10, this utility model can increase the contact degree between the positioning pulley 8 and the guide rod 2, improve the stability of the positioning pulley 8 rolling on the surface of the guide rod 2, and thus improve the stability of the guide sleeve 4 sliding on the surface of the guide rod 2. 3. By setting the torsion spring 12, the torsion spring 12 can make the clamping swing block 7 have an outward rotation force, which can prevent the three clamping swing blocks 7 from swinging freely inward and affecting the installation between the guide sleeve 4 and the guide rod 2.

[0015] Working principle: When using this utility model, the threaded sleeve 9 is rotated by operating it. The hexagon on the outside of the threaded sleeve 9 makes it easy for the user to operate. The threaded sleeve 9 is the external thread on the surface of the guide sleeve 4. The threaded sleeve 9 moves downward and rotates on the surface of the guide sleeve 4. During the movement of the threaded sleeve 9, it will move to the outside of the inner cavity of the rectangular cavity 5 until it contacts the inclined surface of the clamping block 7. The three clamping blocks 7 will rotate on the inner side of the guide sleeve 4 around the shaft pin 6, so that the positioning pulley 8 on the clamping block 7 is in contact with the surface of the guide rod 2. The three clamping blocks 7 rotate at the same time, which achieves the purpose of central compression. The positioning pulley 8 can also roll on the surface of the guide rod 2, ensuring the stability of the guide sleeve 4 sliding on the surface of the guide rod 2.

[0016] In summary: This hydraulic press guide structure, by rotating the threaded sleeve 9, causes the threaded sleeve 9 to move downwards on the surface of the guide sleeve 4. During this movement, it moves to the outside of the inner cavity of the rectangular cavity 5 until it contacts the inclined surface of the clamping block 7. The clamping block 7 then rotates around the shaft pin 6, causing the positioning pulley 8 on the clamping block 7 to fit against the surface of the guide rod 2. The simultaneous rotation of the three clamping blocks 7 achieves the purpose of central compression. The positioning pulley 8 can also roll on the surface of the guide rod 2, thus achieving the purpose of central compression to ensure the stability between the guide sleeve and the column, thereby ensuring the guiding accuracy.

Claims

1. A hydraulic press guide structure, characterized in that, The device includes four guide rods (2) installed on a stamping machine (1). The surfaces of the four guide rods (2) are slidably connected to sliding seats (3). At the four corners of the bottom of the sliding seats (3), guide sleeves (4) that slide on the surface of the guide rods (2) are installed. The surface of the guide sleeves (4) has three rectangular cavities (5) arranged in a ring array. The inner cavity of the rectangular cavity (5) is fixedly connected to a shaft pin (6). The surface of the shaft pin (6) is slidably connected to a clamping block (7). The inner side of the clamping block (7) is equipped with a rotatable positioning pulley (8). The surface of the guide sleeves (4) is provided with external threads. The surface of the guide sleeves (4) is threadedly connected to a threaded sleeve (9).

2. The hydraulic press guide structure according to claim 1, characterized in that, The surface of the positioning pulley (8) is provided with an arc-shaped groove (10) that fits against the surface of the guide rod (2).

3. The hydraulic press guide structure according to claim 2, characterized in that, The top of the clamping block (7) is provided with a notch (11), and the inner cavity of the notch (11) is provided with a torsion spring (12) sleeved on the surface of the shaft pin (6). The two ends of the torsion spring (12) are respectively fixedly connected to the side wall of the clamping block (7) and the rectangular cavity (5).

4. The hydraulic press guide structure according to claim 3, characterized in that, The outer side of the threaded sleeve (9) is hexagonal.

5. A hydraulic press guide structure according to claim 4, characterized in that, The outer side of the clamping block (7) is set as an inclined surface, which is adapted to the threaded sleeve (9).

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