Oil-driven clamping block linkage control mechanism for clamp

Abstract

The utility model relates to the technical field of clamps, and provides an oil-driven clamping block linkage control mechanism for a clamp, which is used for receiving oil leaked from a sealing position of an oil way plate, and comprises a main body, a pressure relief groove is arranged on the side wall of a cavity, and a collecting piece is arranged below the main body, the cavity is internally provided with a cavity, a protective plate is movably arranged in the cavity, and the protective plate is movably arranged in the cavity; the protection plate can be switched to a first working position or a second working position in the cavity; when the protection plate is located at the first working position, leaked oil flows on the protection plate, when the protection plate is located at the second working position, the leaked oil can flow from the upper area of the protection plate to the lower area of the protection plate through the pressure relief groove, and the collecting piece is arranged below the main body, communicates with the cavity and can effectively collect oil flowing into the cavity. Through cooperation of the protection plate and the pressure relief groove and effective collection of leaked oil liquid by the collecting piece, the control mechanism in the scheme can effectively prevent environmental pollution and equipment damage caused by oil liquid leakage.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and particularly relates to an oil-driven clamp block linkage control mechanism for a fixture. Background Art

[0002] In the field of modern industrial manufacturing, fixtures, as indispensable key components in equipment such as machine tools and machining centers, are widely used in the positioning and clamping processes of various workpieces. Their performance directly affects the machining accuracy, production efficiency, and operational stability of the equipment. With the continuous improvement of the requirements for machining accuracy and efficiency in the manufacturing industry, especially in high-precision manufacturing industries such as aerospace, automotive manufacturing, and precision machining, more stringent requirements are imposed on the functions and performance of fixtures.

[0003] In the prior art, hydraulic clamp blocks, as common clamping actuators in fixtures, have been widely used in various industrial scenarios due to their advantages such as large clamping force, fast response speed, and stable operation. Most hydraulic clamp block control mechanisms achieve precise control of the actions of each clamp block through a hydraulic system. The oil circuit board (also known as a hydraulic valve block or hydraulic manifold block) is a key component in the hydraulic system that controls the flow direction and distribution of hydraulic oil. It is usually made of metal materials (such as steel or aluminum) and connects multiple hydraulic components (such as pumps, valves, actuators, etc.) through a complex internal oil passage design. The sealing performance of the oil circuit board directly affects the stability and efficiency of the system, so it must be highly emphasized.

[0004] However, under the influence of various factors such as long-term high-load operation, hydraulic oil pollution, and seal aging, oil leakage from the oil circuit board occurs frequently. Especially under high-pressure conditions, a large amount of hydraulic oil will leak from the seals of the oil circuit board, which not only pollutes the ground or mechanical equipment, but may even pose safety hazards and affect the normal operation of the production environment and equipment. Summary of the Utility Model

[0005] Aiming at the above deficiencies existing in the prior art, the technical problem to be solved by the utility model is: to propose an oil-driven clamp block linkage control mechanism for a fixture. Through the cooperative design of a protection plate and a pressure relief groove, and the effective collection of leaked oil by a collection member, the control mechanism in this solution can not only effectively prevent environmental pollution and equipment damage caused by oil leakage, but also flexibly cope with oil leakage situations of different magnitudes. In addition, this design can naturally achieve pressure balance through the accumulation and flow of oil, thereby reducing the maintenance frequency and cost caused by oil leakage.

[0006] The technical solution adopted by the utility model to solve its technical problem is to propose an oil-driven clamp block linkage control mechanism for a fixture, which is used to receive the oil leaked from the seal of the oil circuit board. The control mechanism includes:

[0007] A main body with a cavity provided therein;

[0008] A protection plate movably arranged in the cavity, and the protection plate has a first working position and a second working position in the cavity, and the protection plate is used for receiving leaked oil;

[0009] A pressure relief groove arranged on the side wall of the cavity;

[0010] One side of the protection plate can abut between the inner wall of the cavity and the pressure relief groove due to the protection plate being in the first working position, and can be located on the side of the pressure relief groove due to the protection plate being in the second working position, for allowing the oil to flow from the upper area of the protection plate to the lower area of the protection plate through the pressure relief groove;

[0011] A collecting member arranged below the main body and communicated with the cavity, for collecting the oil flowing into the cavity.

[0012] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, an elastic member is arranged in the cavity, a bottom plate is arranged at the bottom of the cavity, one end of the elastic member is connected to the protection plate, and the other end is connected to the bottom plate. The elastic member can be in a pre-compressed state due to the protection plate being in the first working position, for providing support for the protection plate, and can be further compressed to generate elastic deformation due to the protection plate being converted from the first working position to the second working position.

[0013] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, a positioning rod is further arranged in the cavity, the elastic member is sleeved on the positioning rod, a through hole is arranged on the protection plate, the diameter of the through hole is larger than the diameter of the positioning rod, and the protection plate is movably sleeved on the positioning rod through the through hole.

[0014] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, a diversion groove is arranged on the protection plate, and the diversion groove can be communicated with the pressure relief groove due to the protection plate being in the second working position.

[0015] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, the diversion groove has a transverse part and a longitudinal part perpendicular to each other, for providing a flow path for the leaked oil.

[0016] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, the diversion groove has a discharge part extending towards the side wall of the cavity, and one end of the discharge part away from the diversion groove can abut against the inner wall of the cavity due to the protection plate being in the first working position, and can be communicated with the pressure relief groove due to the protection plate being in the second working position.

[0017] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, the bottom of the pressure relief groove has an inverted triangular structure.

[0018] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, the cavity has a first part above the protection plate and a second part below the protection plate. The first part and the second part can communicate with each other through the pressure relief groove when the protection plate is in the second working position.

[0019] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, the collecting member has a cavity for collecting leaked oil.

[0020] In the above-mentioned oil-driven clamp block linkage control mechanism for a fixture, the bottom plate of the cavity has a hollowed-out part, and the cavity communicates with the cavity through the hollowed-out part.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] (1) By arranging a protection plate in the main body cavity and a pressure relief groove on the side wall of the cavity; the protection plate can be switched to the first working position or the second working position in the cavity and automatically adjust its position according to the flow rate of the leaked oil; the design of the pressure relief groove enables the leaked oil to flow from the upper area to the lower area of the protection plate through the pressure relief groove when the protection plate is in the second working position; the collecting member is arranged below the main body and communicates with the cavity, which can effectively collect the oil flowing into the cavity; through the cooperative design of the protection plate and the pressure relief groove, and the effective collection of the leaked oil by the collecting member, the control mechanism in this solution can not only effectively prevent environmental pollution and equipment damage caused by oil leakage, but also flexibly cope with different magnitudes of oil leakage situations. In addition, this design can naturally achieve pressure balance through the accumulation and flow of oil, thereby reducing the maintenance frequency and cost caused by oil leakage.

[0023] (2) Through the arrangement of the elastic member and utilization of its elastic characteristics, the automatic switching of the protection plate between the first working position and the second working position is realized; the arrangement of the positioning rod further ensures the accuracy and stability of the movement of the protection plate and the elastic member, avoiding the phenomenon of offset or jamming of the protection plate during the switching process.

[0024] (3) By arranging a diversion groove on the protection plate and, when the protection plate is in the second working position, the diversion groove communicates with the pressure relief groove through the discharge part, this arrangement not only enhances the ability of the control mechanism in this solution to handle oil leakage, but also improves the stability and safety of the system, reduces the maintenance requirements, and can effectively prevent the leaked oil from flowing to other equipment due to excessive pressure, thereby avoiding damage to other equipment. Description of the Drawings

[0025] Figure 1 is the perspective view of this solution.

[0026] Figure 2 is Figure 1 the partial structural schematic diagram in

[0027] Figure 3 is Figure 1 the partial structural schematic diagram in

[0028] In the figure, 1. main body; 2. cavity; 3. protection plate; 4. pressure relief groove; 5. collection member; 6. elastic member; 7. bottom plate; 8. positioning rod; 9. diversion groove; 10. horizontal part; 11. vertical part; 12. discharge part; 13. first part; 14. second part; 15. accommodation cavity; 16. hollow part. Specific embodiments

[0029] The following are specific embodiments of the present utility model and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If this specific posture changes, then the directional indication will also change accordingly.

[0031] As Figure 1 shown, an oil-driven clamp block linkage control mechanism for a fixture in this solution is installed at the bottom of the oil circuit board to effectively receive the oil leakage that may occur at the sealed part of the oil circuit board.

[0032] As Figures 1 to 3 shown, an oil-driven clamp block linkage control mechanism for a fixture in this solution is used to receive the oil leaked from the sealed part of the oil circuit board. The control mechanism includes: a main body 1, in which a cavity 2 is provided; a protection plate 3, which is movably arranged in the cavity 2, and the protection plate 3 has a first working position and a second working position in the cavity 2, and the protection plate 3 is used to receive the oil leakage; a pressure relief groove 4, which is arranged on the side wall of the cavity 2; one side of the protection plate 3 can be abutted between the inner wall of the cavity 2 and the pressure relief groove 4 due to the protection plate 3 being in the first working position, and is located on the side of the pressure relief groove 4 due to the protection plate 3 being in the second working position, and is used for the oil liquid to flow from the upper area of the protection plate 3 to the lower area of the protection plate 3 through the pressure relief groove 4; a collection member 5, which is arranged below the main body 1 and is communicated with the cavity 2, and is used to collect the oil flowing into the cavity 2.

[0033] The main body 1 is installed at the bottom of the sealing part of the oil circuit board, and a sealing ring is provided between the main body 1 and the oil circuit board; during operation, the initial position of the protection plate 3 in the cavity 2 is the first working position; when a small amount of leakage occurs at the sealing part of the oil circuit board, the leaked oil will be received by the protection plate 3 in the first working position and accumulate on it, and part of the oil slowly flows to the area below the protection plate 3 along the gap between the side wall of the protection plate 3 and the side wall of the cavity 2; when a large amount of oil leaks from the sealing part of the oil circuit board, the impact force of the leaked oil acts on the protection plate 3, causing the protection plate 3 to switch from the first working position to the second working position. At this time, the oil flows from the area above the protection plate 3 to the area below the protection plate 3 through the pressure relief groove 4 and is finally effectively collected by the collecting part 5. As the flow rate of the leaked oil decreases, the liquid thrust acting on the protection plate 3 weakens, and the protection plate 3 automatically returns to the first working position. During this process, while receiving the leaked oil, the protection plate 3 can play a role in initially buffering and assisting in pressure relief for a large amount of leaked oil. Subsequently, the oil enters the pressure relief groove 4, and through the pressure relief groove 4, flow guidance and further pressure release are achieved, thereby completing secondary pressure relief; through the above-mentioned oil receiving method, the control mechanism in this solution can not only effectively prevent environmental pollution and equipment damage caused by oil leakage, but also has the ability to handle different leakage amounts. In addition, this design can achieve the pressure balance of the system through the natural accumulation and flow of oil, which helps to reduce the maintenance frequency and cost caused by leakage.

[0034] In order to enable the protection plate 3 to switch between the first working position and the second working position, an elastic member 6 is provided in the cavity 2, and a bottom plate 7 is provided at the bottom of the cavity 2; one end of the elastic member 6 is connected to the protection plate 3, and the other end is connected to the bottom plate 7; when the protection plate 3 is in the first working position, the elastic member 6 is in a pre-compressed state due to supporting the weight of the protection plate 3 and provides support for the protection plate 3; when the leaked oil received by the protection plate 3 generates sufficient pressure on the protection plate 3, this pressure further compresses the elastic member 6, causing the protection plate 3 to switch from the first working position to the second working position. At this time, the oil flows from the area above the protection plate 3 to the area below the protection plate 3 through the pressure relief groove 4 and is effectively collected by the collecting part 5; when the pressure of the leaked oil acting on the protection plate 3 decreases to a certain extent, the elastic member 6 returns to the pre-compressed state, driving the protection plate 3 in the second working position back to the first working position; through this design, not only can the flow path of the leaked oil be effectively controlled, but also the automatic switching of the protection plate 3 between the first working position and the second working position can be realized by using the characteristics of the elastic member 6; the elastic member 6 is preferably a spring.

[0035] Further preferably, a positioning rod 8 is also provided in the cavity 2. The elastic member 6 is sleeved on the positioning rod 8. The protection plate 3 is provided with a through hole, and the diameter of the through hole is larger than that of the positioning rod 8, so that the protection plate 3 can be movably sleeved on the positioning rod 8 through the through hole. This design allows the protection plate 3 to slide up and down along the positioning rod 8, ensuring smooth switching between different working positions, preventing lateral offset at the same time, and guaranteeing the accuracy and stability of the movement. Specifically, the elastic member 6 is sleeved on the positioning rod 8, enabling it to freely expand and contract along the direction of the positioning rod 8. When the protection plate 3 is subjected to the pressure of the leaked oil, the elastic member 6 is further compressed. When the pressure of the leaked oil decreases, the elastic member 6 returns to the pre-compressed state, pushing the protection plate 3 back to the initial position. In this way, the protection plate 3 can automatically switch between the first working position and the second working position, ensuring the reliability and efficiency of the system operation.

[0036] Further preferably, a diversion groove 9 is provided on the protection plate 3. When the protection plate 3 is in the first working position, the leaked oil received by the protection plate 3 will flow in the diversion groove 9. When the protection plate 3 switches to the second working position, the diversion groove 9 is communicated with the pressure relief groove 4, so that the oil in the diversion groove 9 can flow to the area below the protection plate 3 through the pressure relief groove 4. The main purpose of this design is to ensure that the protection plate 3 can manage the oil flow path more effectively, thereby improving the working efficiency and reliability of the entire mechanism.

[0037] The diversion groove 9 has a transverse portion 10 and a longitudinal portion 11 that are perpendicular to each other. This design provides a clear and direct flow path for the leaked oil, and when a large amount of leakage occurs at the oil circuit board seal, it performs preliminary pressure relief on the oil, effectively controlling the flow direction of the leaked oil and avoiding the problem of contaminating other components caused by the disorderly diffusion of the oil.

[0038] In order to communicate the diversion groove 9 with the pressure relief groove 4, the diversion groove 9 also has a discharge portion 12 extending towards the side wall of the cavity 2. When the protection plate 3 is in the first working position, the end of the discharge portion 12 away from the diversion groove 9 is in movable contact with the inner wall of the cavity 2. When the protection plate 3 is in the second working position, the diversion groove 9 is communicated with the pressure relief groove 4 through the discharge portion 12, performing secondary pressure relief on the oil while allowing the oil to flow out smoothly.

[0039] When a large amount of oil leaks from the seal of the oil circuit board, the leaked oil is received by the protection plate 3 and flows on the diversion groove 9, reducing the impact force of the leaked oil to achieve preliminary pressure relief. The design of the horizontal part 10 and the vertical part 11 on the diversion groove 9 extends the flow path of the oil, increases the local resistance, and thus controls the pressure relief speed. As the pressure generated by the leaked oil on the protection plate 3 increases, the protection plate 3 switches from the first working position to the second working position. At this time, the oil flows through the discharge part 12 on the diversion groove 9 to the pressure relief groove 4. The pressure relief groove 4 further relieves the pressure of the received oil and guides the oil to the area below the protection plate 3. The setting of the diversion groove 9 not only enhances the ability of the control mechanism in this solution to handle oil leakage, but also improves the stability and safety of the system, reduces maintenance requirements, and can effectively prevent the leaked oil from flowing to other equipment due to excessive pressure, thereby avoiding damage to other equipment.

[0040] Further preferably, the bottom of the pressure relief groove 4 has an inverted triangular structure. The inverted triangular structure enables the oil to smoothly transition from the wider side to the narrower side, thereby reducing the retention and accumulation of oil in the pressure relief groove 4 and significantly improving the oil discharge efficiency. In addition, the inverted triangular structure can be adaptively guided according to the actual flow rate, enabling the pressure relief groove 4 to maintain good oil discharge performance under high-flow or low-flow conditions.

[0041] Further preferably, the cavity 2 has a first part 13 above the protection plate 3 and a second part 14 below the protection plate 3. When the protection plate 3 is in the first working position, the leaked oil will accumulate on the protection plate 3 and flow in the diversion groove 9, and part of the oil will slowly flow to the second part 14 along the gap between the side wall of the protection plate 3 and the side wall of the cavity 2. When the protection plate 3 switches to the second working position, the first part 13 and the second part 14 are interconnected through the pressure relief groove 4. At this time, the leaked oil accumulated above the protection plate 3 can quickly flow into the second part 14 through the pressure relief groove 4 and is finally collected by the collector 5.

[0042] The advantage of this design is that by controlling the position of the protection plate 3, the flow direction of the leaked oil can be precisely managed. When a small amount of leakage occurs, the protection plate 3 can temporarily store the leaked oil to prevent it from spreading rapidly. When a large amount of leakage occurs, due to the increased pressure generated by the leaked oil on the protection plate 3, the protection plate 3 will automatically switch to the second working position, allowing the oil to flow from the first part 13 through the pressure relief groove 4 to the second part 14, thereby reducing the risk of excessive system pressure. This design not only enables the control mechanism in this solution to more effectively respond to different levels of oil leakage, but also significantly improves the stability and safety of the system, while reducing potential damage and maintenance costs caused by the leaked oil.

[0043] To effectively collect the leaked oil, a cavity 15 is provided inside the collector 5.

[0044] In order to connect the cavity 2 with the collecting member 5, the bottom plate 7 of the cavity 2 is provided with a hollow portion 16. The cavity 2 is connected to the cavity 15 through the hollow portion 16, and the leaked oil can smoothly flow from the cavity 2 into the cavity 15 of the collecting member 5 through the hollow portion 16. Specifically, when the protection plate 3 is in the second working position, the oil accumulated above the protection plate 3 and guided down through the pressure relief groove 4 will enter the cavity 15 of the collecting member 5 through the hollow portion 16 at the bottom of the cavity 2. This design ensures the effective collection of the leaked oil.

[0045] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. Terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A hydraulic clamp linkage control mechanism for a clamp, used to receive oil leaking from the seal of an oil circuit board, characterized in that: The control mechanism comprises: a main body, in which a cavity is disposed; A protection plate, which is movably arranged in the cavity, and the protection plate has a first working position and a second working position in the cavity, and the protection plate is used to receive the leaked oil; A pressure relief groove, which is arranged on the side wall of the cavity; One side of the protection plate may abut between the inner wall of the cavity and the pressure relief groove when the protection plate is in the first working position, and is located on the side of the pressure relief groove when the protection plate is in the second working position, so as to allow the oil to flow from the area above the protection plate to the area below the protection plate through the pressure relief groove; A collecting member is arranged below the main body and communicated with the cavity, and is used for collecting the oil flowing into the cavity.

2. A hydraulic clamp linkage control mechanism for a clamp as claimed in claim 1, characterized in that: An elastic member is arranged in the cavity, and a bottom plate is arranged at the bottom of the cavity. One end of the elastic member is connected to the protective plate, and the other end is connected to the bottom plate. The elastic member can be in a pre-compressed state because the protective plate is in the first working position, and is used to provide support for the protective plate. The elastic member is further compressed and elastically deformed because the protective plate is converted from the first working position to the second working position.

3. A hydraulic clamp linkage control mechanism for a clamp as claimed in claim 2, characterized in that: A positioning rod is also provided in the cavity, the elastic member is sleeved on the positioning rod, a through hole is provided on the protection plate, the diameter of the through hole is larger than the diameter of the positioning rod, and the protection plate is movably sleeved on the positioning rod through the through hole.

4. The oil-operated clamp linkage control mechanism for a clamp as claimed in claim 1, characterized in that: The protection plate is provided with a guide groove, and the guide groove can be communicated with the pressure relief groove because the protection plate is in the second working position.

5. A hydraulic clamp linkage control mechanism for a clamp as claimed in claim 4, characterized in that: The guide groove has a transverse portion and a longitudinal portion which are perpendicular to each other and is used to provide a flow path for leaking oil.

6. A hydraulic clamp linkage control mechanism for a clamp as claimed in claim 4, characterized in that: The guide groove has a discharge portion extending toward the side wall of the cavity. One end of the discharge portion away from the guide groove can be movably abutted against the inner wall of the cavity when the protection plate is in the first working position, and is connected to the pressure relief groove when the protection plate is in the second working position.

7. The oil-operated clamping block linkage control mechanism for a clamp as claimed in claim 1, characterized in that: The bottom of the pressure relief groove has an inverted triangle structure.

8. The oil-operated clamping block linkage control mechanism for a clamp as claimed in claim 1, characterized in that: The cavity has a first portion located above the protection plate and a second portion located below the protection plate. The first portion and the second portion can be communicated with each other through the pressure relief groove because the protection plate is in the second working position.

9. The oil-operated clamp linkage control mechanism for a clamp as claimed in claim 2, characterized in that: The collecting member has a cavity therein, and the cavity is used to collect leaked oil.

10. A hydraulic clamp linkage control mechanism for a clamp as claimed in claim 9, characterized in that: The bottom plate of the cavity is provided with a hollow portion, and the cavity is communicated with the containing cavity through the hollow portion.

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