Eight-face guiding mechanism of upper cylinder of hydraulic press

By using a circumferentially distributed limiting structure and extrusion rollers, the problem of high frictional wear in the hydraulic press's guiding mechanism is solved, achieving accurate guidance and stable connection, and reducing the wear rate.

CN224392027UActive Publication Date: 2026-06-23ZHEJIANG HELI INTELLIGENT MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HELI INTELLIGENT MASCH CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing hydraulic press's upper cylinder guide mechanism suffers from significant frictional wear during use, leading to a decrease in guiding accuracy.

Method used

By employing a circumferentially distributed limiting structure and a pressing roller structure, and through the cooperation of an electric telescopic rod and a spring, accurate guidance of the hydraulic press connection structure is achieved, reducing frictional loss.

Benefits of technology

It improves the guiding accuracy and stability of the hydraulic press, reduces the wear rate, and is easy to install with accurate positioning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of eight face guiding mechanism of upper cylinder of hydraulic press, including base and its bottom is connected with mounting plate, base top is connected with support bracket, base top is connected with connecting bolt, connecting bolt is connected with mounting plate threadedly, support bracket top is connected with top plate, top plate center is equipped with through-hole, top plate top is connected with extrusion component, top plate bottom is connected with limiting component, for combination limit, belong to guiding mechanism technical field, to the problem of fast abrasion speed when using traditional guiding structure, the utility model realizes the guiding effect of the device by the limiting structure of circumferential distribution, the friction loss between the device and connecting structure can be reduced by the structure of extrusion roller, so as to reduce the abrasion speed of the device.
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Description

Technical Field

[0001] This utility model relates to the field of guiding mechanism technology, specifically to an eight-sided guiding mechanism for the upper cylinder of a hydraulic press. Background Technology

[0002] Hydraulic presses are widely used in stamping, stretching and other work applications. A hydraulic press includes an upper die, which is fixed to a slider by a mounting plate. The slider can be raised and lowered, usually driven by an upper hydraulic cylinder, and is equipped with a lifting guide mechanism, such as a guide column or an eight-sided guide rail. However, wear will occur between the slider and the guide rail during the lifting process, resulting in gaps, which will affect the stability of the hydraulic system.

[0003] Chinese patent CN217495304U discloses an eight-sided guide mechanism for the upper cylinder of a hydraulic press, used to guide the connecting structure of the hydraulic press.

[0004] However, the above-disclosed solutions have the following shortcomings: In actual use, when the device performs its guiding function, the degree of friction between its guiding part and the outer wall of the hydraulic press connection structure is relatively large, which leads to a large frictional wear of the guiding structure during actual use, and consequently, the guiding accuracy of the device decreases due to wear.

[0005] This utility model proposes an eight-sided guide mechanism for the upper cylinder of a hydraulic press to solve the problem. Utility Model Content

[0006] The purpose of this invention is to achieve the guiding effect of the device through the circumferentially distributed limiting structure, and to reduce the frictional loss between the device and the connecting structure through the extrusion roller structure, thereby reducing the wear rate of the device and overcoming the problems in the background art.

[0007] Based on the above technical concept, the technical solution adopted by this utility model is as follows:

[0008] An eight-sided guide mechanism for the upper cylinder of a hydraulic press includes a base and a mounting plate connected to its bottom. A support bracket is connected to the top of the base, and a connecting bolt is threaded through the top of the base and threaded to the mounting plate. A top plate is connected to the top of the support bracket, and a through hole is provided at the center of the top plate. An extrusion component is connected to the top of the top plate, and a limit component is connected to the bottom of the top plate for combined limit positioning.

[0009] Further defining the above technical solution, the extrusion component includes an extrusion base connected to the top of the top plate, a connecting bracket connected to the top of the extrusion base, an electric telescopic rod connected to the connecting bracket, and the telescopic end of the electric telescopic rod passing through the connecting bracket and connected to a roller bracket.

[0010] Further defining the above technical solution, the roller bracket is U-shaped, with sliding waist-shaped holes through both ends of the roller bracket. A rotating shaft is slidably connected to the inner wall of the sliding waist-shaped hole, and a pressing roller is rotatably connected to one end of the rotating shaft. The outer arc surface of the pressing roller is provided with a groove.

[0011] Further defining the above technical solution, the end of the rotating shaft away from the extrusion roller is rotatably connected to a rotating connector, the rotating connector is slidably connected to the outer side of the roller bracket, a spring is connected to the side of the rotating connector, the other end of the spring is connected to a spring bracket, the spring bracket is connected to the outer side of the roller bracket, and the extrusion roller is used for guiding transmission.

[0012] Further defining the above technical solution, the limiting component includes a limiting bracket connected to the inner wall of the support bracket, the limiting bracket being connected to an electric transmission rod, the telescopic end of the electric transmission rod being connected to a sliding member, the inner wall of the support bracket being provided with a sliding groove, and the sliding groove being slidably connected to the sliding member.

[0013] Further defining the above technical solution, the inner wall of the support bracket is provided with a sliding groove, the sliding groove is slidably connected to the sliding member, the sliding member is rotatably connected to a rotating connecting rod, the sliding member and the rotating connecting rod are symmetrically arranged on the inner side wall of the support bracket, and the two symmetrical sets of rotating connecting rods are rotatably connected to each other at their centers.

[0014] Further defining the above technical solution, the end of the rotating connecting rod away from the sliding member is connected to a rotating abutment with rotational damping, and an arc-shaped contact member is connected to the side of the rotating abutment for contact limiting.

[0015] Further defining the above technical solution, the limiting component and the extrusion component are circumferentially distributed at the top and bottom of the top plate, and the multiple sets of the circumferentially distributed limiting component and the extrusion component move synchronously to ensure accurate guidance.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Easy installation: This device can be installed by combining the base and the mounting plate, thereby reducing the difficulty of connecting the device with the hydraulic press through the structure of connecting bolts;

[0018] 2. Accurate positioning: This device achieves accurate guiding effect through circumferentially distributed extrusion components, thereby controlling the electric telescopic rod to achieve guiding and limiting effect on the hydraulic press connection structure;

[0019] 3. Reduce friction: The structure of the extrusion rollers in this device can reduce the friction between the limiting guide structure and the connecting structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the support bracket in the eight-sided guide mechanism of the upper cylinder of a hydraulic press according to the present invention;

[0022] Figure 2 This is a schematic diagram of the mounting plate in the eight-sided guide mechanism of the upper cylinder of a hydraulic press according to the present invention;

[0023] Figure 3 This is a schematic diagram of the limiting component in the eight-sided guide mechanism of the upper cylinder of a hydraulic press according to the present invention;

[0024] The components include: 1. Base; 2. Mounting plate; 3. Connecting bolts; 4. Support bracket; 5. Top plate; 6. Through hole; 7. Extrusion component; 701. Extrusion base; 702. Connecting bracket; 703. Electric telescopic rod; 704. Roller bracket; 705. Sliding waist-shaped hole; 706. Extrusion roller; 707. Rotating connecting component; 708. Spring; 709. Spring bracket; 8. Limiting component; 801. Limiting bracket; 802. Electric transmission rod; 803. Sliding groove; 804. Sliding component; 805. Rotating connecting rod; 806. Rotating abutment component; 807. Arc-shaped contact component. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0026] Example 1: This example provides an eight-sided guide mechanism for the upper cylinder of a hydraulic press, such as... Figure 1-3 As shown, it includes a base 1 and a mounting plate 2 connected to its bottom. A support bracket 4 is connected to the top of the base 1. A connecting bolt 3 is connected through the top of the base 1. The connecting bolt 3 is threadedly connected to the mounting plate 2. A top plate 5 is connected to the top of the support bracket 4. A through hole 6 is provided in the center of the top plate 5. A pressing component 7 is connected to the top of the top plate 5. A limiting component 8 is connected to the bottom of the top plate 5 for combined limiting.

[0027] The extrusion component 7 includes an extrusion base 701 connected to the top of the top plate 5. A connecting bracket 702 is connected to the top of the extrusion base 701. An electric telescopic rod 703 is connected to the connecting bracket 702. The telescopic end of the electric telescopic rod 703 passes through the connecting bracket 702 and is connected to a roller bracket 704.

[0028] The roller bracket 704 is U-shaped, and sliding waist-shaped holes 705 are provided through both ends of the roller bracket 704. A rotating shaft is slidably connected to the inner wall of the sliding waist-shaped hole 705. One end of the rotating shaft is rotatably connected to a pressing roller 706. The outer arc surface of the pressing roller 706 is provided with a groove.

[0029] The end of the rotating shaft away from the extrusion roller 706 is rotatably connected to a rotating connector 707. The rotating connector 707 is slidably connected to the outer side of the roller bracket 704. A spring 708 is connected to the side of the rotating connector 707. The other end of the spring 708 is connected to a spring bracket 709. The spring bracket 709 is connected to the outer side of the roller bracket 704. The extrusion roller 706 is used for guiding transmission.

[0030] The limiting component 8 includes a limiting bracket 801 connected to the inner wall of the support bracket 4. The limiting bracket 801 is connected to an electric transmission rod 802. The telescopic end of the electric transmission rod 802 is connected to a sliding member 804. The inner wall of the support bracket 4 is provided with a sliding groove 803, and the sliding groove 803 is slidably connected to the sliding member 804.

[0031] The specific working principle is as follows: This device can effectively improve the stability of the hydraulic press connection structure. When this device is used, the base 1 can be installed on the top of the hydraulic press by combining the mounting plate 2 and the connecting bolts 3. At this time, the hydraulic press connection structure is placed inside the through hole 6, and the connection structure is coarsely limited by the through hole 6.

[0032] At this time, the electric telescopic rod 703 is activated, which drives the roller bracket 704 to slide towards the through hole 6. At this time, the extrusion roller 706 contacts the outer end face of the connecting structure. Under the action of the roller bracket 704, the spring 708 is compressed, thereby ensuring that the extrusion roller 706 can stably extrude the outer side of the connecting structure.

[0033] The device can achieve eight-sided guiding and limiting effect through the staggered distribution of limiting components 8. The limiting components 8 drive the rotating connecting rod 805 to rotate through the electric transmission rod 802, so that the arc-shaped contact 807 contacts the outer end face of the connecting structure, thereby preventing the connecting structure from tilting or other problems.

[0034] Example 2: This example provides an eight-sided guide mechanism for the upper cylinder of a hydraulic press, such as... Figure 1-3 As shown, the inner wall of the support bracket 4 is provided with a sliding groove 803, which is slidably connected to the sliding member 804. The sliding member 804 is rotatably connected to a rotating connecting rod 805. The sliding member 804 and the rotating connecting rod 805 are symmetrically arranged on the inner side wall of the support bracket 4, and the two sets of symmetrical rotating connecting rods 805 are rotatably connected to each other at their center.

[0035] The rotating connecting rod 805 is connected to a rotating abutment 806 at one end away from the sliding member 804 with rotational damping. An arc-shaped contact member 807 is connected to the side of the rotating abutment 806 for contact limiting.

[0036] The limiting component 8 and the pressing component 7 are circumferentially distributed at the top and bottom of the top plate 5. The multiple sets of the circumferentially distributed limiting component 8 and pressing component 7 move synchronously to ensure accurate guidance.

[0037] The specific working principle is as follows: This device can achieve a uniform guiding and limiting effect on the connecting structure. In actual use, this device can achieve a uniform guiding effect on the connecting structure through the circumferentially distributed extrusion parts 7. The structure of the through hole 6 can reduce the difficulty of assembling and docking this device.

[0038] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments, which is intended to enable those skilled in the art to understand and apply the present invention. However, it should not be assumed that the specific implementation of the present invention is limited to these descriptions.

Claims

1. An octagonal guide mechanism for the upper cylinder of a hydraulic press, comprising a base (1) and a mounting plate (2) connected to its bottom, and a support bracket (4) connected to the top of the base (1), characterized in that, The top of the base (1) is connected by a connecting bolt (3), which is threaded to the mounting plate (2). The top of the support bracket (4) is connected to a top plate (5), which has a through hole (6) at the center. The top of the top plate (5) is connected to a pressing component (7), and the bottom of the top plate (5) is connected to a limiting component (8) for combined limiting.

2. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 1, characterized in that, The extrusion component (7) includes an extrusion base (701) connected to the top of the top plate (5), a connecting bracket (702) connected to the top of the extrusion base (701), an electric telescopic rod (703) connected to the connecting bracket (702), and the telescopic end of the electric telescopic rod (703) passing through the connecting bracket (702) and connected to a roller bracket (704).

3. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 2, characterized in that, The roller bracket (704) is U-shaped, and sliding waist-shaped holes (705) are provided through both ends of the roller bracket (704). A rotating shaft is slidably connected to the inner wall of the sliding waist-shaped hole (705), and a pressing roller (706) is rotatably connected to one end of the rotating shaft. The outer arc surface of the pressing roller (706) is provided with a groove.

4. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 3, characterized in that, The end of the rotating shaft away from the extrusion roller (706) is rotatably connected to a rotating connector (707). The rotating connector (707) is slidably connected to the outer side of the roller bracket (704). A spring (708) is connected to the side of the rotating connector (707). The other end of the spring (708) is connected to a spring bracket (709). The spring bracket (709) is connected to the outer side of the roller bracket (704). The extrusion roller (706) is used for guiding transmission.

5. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 4, characterized in that, The limiting component (8) includes a limiting bracket (801) connected to the inner wall of the support bracket (4), the limiting bracket (801) is connected to an electric transmission rod (802), the telescopic end of the electric transmission rod (802) is connected to a sliding member (804), the inner wall of the support bracket (4) is provided with a sliding groove (803), and the sliding groove (803) is slidably connected to the sliding member (804).

6. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 5, characterized in that, The inner wall of the support bracket (4) is provided with a sliding groove (803), the sliding groove (803) is slidably connected to the sliding member (804), the sliding member (804) is rotatably connected to a rotating connecting rod (805), the sliding member (804) and the rotating connecting rod (805) are symmetrically arranged on the inner side wall of the support bracket (4), and the two sets of symmetrical rotating connecting rods (805) are rotatably connected to each other at their center.

7. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 6, characterized in that, The rotating connecting rod (805) is connected to a rotating abutment (806) at one end away from the sliding member (804) with rotational damping. An arc-shaped contact member (807) is connected to the side of the rotating abutment (806) for contact limiting.

8. The upper cylinder eight-sided guide mechanism of a hydraulic press according to claim 7, characterized in that, The limiting component (8) and the squeezing component (7) are circumferentially distributed at the top and bottom of the top plate (5). The multiple sets of the limiting component (8) and the squeezing component (7) distributed circumferentially move synchronously to ensure accurate guidance.

Citation Information

Patent Citations

  • Upper cylinder octahedral guide mechanism of hydraulic machine

    CN217495304U