Device capable of rapidly replacing upper hydraulic clamp and lower hydraulic clamp simultaneously

Abstract

The utility model relates to the technical field of clamp dismounting devices, and discloses a device capable of simultaneously and quickly replacing upper and lower hydraulic clamps, which comprises a base, the base is of a frame structure consisting of a plurality of upright posts, and the end parts of any group of relatively parallel upright posts at the top of the base extend outwards to form a track base; each track base is further provided with a protruding part to form a sliding rail, and the sliding rail is provided with a sliding block capable of moving in the length direction of the sliding rail. The clamp supporting base is detachably connected to the sliding block so as to move in the length direction of the sliding rail. The device can be adapted to various gantry frame testing machines through the design of modularized cross-beam-free sliding rail base stand columns and an adjustable structure, and the universality of equipment is remarkably improved; the clamp is lifted by utilizing the linkage of the cross beam of the testing machine, and the clamp can be pushed to a proper position along the sliding rail after falling down, so that quick disassembly and assembly are realized.

Description

Technical Field

[0001] This utility model relates to the technical field of clamp disassembly devices, and in particular to a device that can simultaneously and quickly replace upper and lower hydraulic clamps. Background Technology

[0002] In the field of modern materials mechanical property testing, electronic universal testing machines and fatigue testing machines, as core testing equipment, have expanded their application scenarios from standard specimen testing to multi-dimensional testing of complex structural components. Due to the varying requirements of different specimens for clamping methods and force application directions, testing machines need to frequently change hydraulic clamps to achieve functional conversion. Currently, there are no dedicated hydraulic clamp changing fixtures for electronic universal testing machines or fatigue testing machines; operations must be performed manually or with simple general-purpose tools, resulting in low efficiency. Hydraulic clamps are generally heavy, often requiring multiple people to work together. During manual operation, if the clamps lack effective support, workplace accidents are highly likely. CN 217225351 U discloses a quick clamp changing device with a trolley, which utilizes a lifting structure to quickly change electrical, pneumatic, hydraulic, and tooling mechanical components. However, this device includes a frame beam, occupying too much space, and cannot be used for clamp changing in gantry-type electronic universal testing machines or fatigue testing machines. Furthermore, existing technologies also suffer from problems such as difficulty in moving the changed clamps.

[0003] Therefore, there is a need in the prior art for improvements to devices that can simultaneously and quickly change upper and lower hydraulic clamps. Utility Model Content

[0004] In view of this, the purpose of this utility model embodiment is to provide a device that can simultaneously and quickly change the upper and lower hydraulic clamps. The device is designed without a crossbeam, has strong applicability, and realizes the support and rapid movement of the clamps through the clamp support seat and slide rail structure.

[0005] To achieve the above objectives, this utility model provides a device capable of simultaneously and quickly changing upper and lower hydraulic clamps, comprising:

[0006] The base is a frame structure composed of multiple columns. The ends of any group of relatively parallel columns at the top of the base extend outward to form a track base. Each track base is further provided with a protrusion to form a slide rail. The slide rail has a slider that can move along the length of the slide rail.

[0007] The clamp support is detachably connected to the slider so that it can move along the length of the slide rail.

[0008] In some implementations, the slide rail has multiple positioning holes and removable positioning pins spaced apart, with the positioning pins inserted into the positioning holes to lock the position of the clamp support.

[0009] In some embodiments, the clamp support includes a support top seat and two parallel connecting plates that are perpendicularly connected to the support top seat. The two connecting plates are respectively fixed on two slide rails by sliders.

[0010] In some embodiments, the clamp support includes a support top and four connecting posts perpendicularly connected to the support top. Each slide rail is provided with two sliders, and two connecting posts on one side are fixed to the two sliders of the same slide rail by an adapter plate.

[0011] In some embodiments, the support top includes two opposing support vertical beams and a plurality of support horizontal beams disposed between the support vertical beams.

[0012] In some implementations, the surface of the clamp support beam is covered with an elastic cushioning pad.

[0013] In some embodiments, the adapter plate includes a first mounting hole located at the center and second mounting holes located on both sides. The first mounting hole is used to fix the adapter plate to the slide rail, and the second mounting holes are used to fix the adapter plate to the connecting post.

[0014] In some implementations, the length of the track base is 2 to 3 times the length of the column.

[0015] In some implementations, the base is provided with multiple casters at its bottom.

[0016] In some embodiments, a latch is also provided between the slider and the slide rail. The slider latch includes: a manual knob exposed on the side of the slider; and an eccentric locking block, which is driven by rotating the manual knob to press the slide rail to achieve self-locking.

[0017] This utility model has at least the following beneficial technical effects:

[0018] This device, through its modular, beamless slide rail base column design and adjustable structure, breaks through the compatibility limitations of traditional testing machines in terms of fixture changing devices. It can be seamlessly adapted to various gantry frame testing machines, significantly improving the equipment's versatility. Utilizing the testing machine's own beam linkage, the fixture is raised and lowered. After the fixture is lowered, it can be pushed to the appropriate position along the slide rail. The entire system can quickly complete high-precision centering and heavy-duty fixture assembly and disassembly under single-person operation, greatly reducing reliance on manpower and operation time. This device solves the problems of low efficiency and poor adaptability of traditional fixture changing, and extends service life through structural optimization, providing a reliable solution for the intelligent and lightweight upgrade of auxiliary equipment for testing machines. Attached Figure Description

[0019] 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 embodiments can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of an embodiment of the device provided by this utility model that can simultaneously and quickly change upper and lower hydraulic clamps;

[0021] Figure 2 A schematic diagram of an embodiment of the adapter plate provided by this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the adapter plate provided by this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Fixture support base; 1.1. Support top base; 1.2. Connecting column; 2. Adapter plate; 2.1. Mounting hole; 3. Slide rail; 3.1. Track base; 3.2. Protrusion; 3.3. Positioning hole; 4. Base; 4.1. Column; 5. Caster wheel; 6. Slider. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to specific examples and accompanying drawings.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0027] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.

[0029] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] Figure 1 The device for simultaneously and quickly changing upper and lower hydraulic clamps provided by this utility model includes:

[0031] The base 4 is a frame structure composed of multiple columns 4.1. The ends of any group of relatively parallel columns 4.1 at the top of the base 4 extend outward to form a track base. Each track base 3.1 is further provided with a protrusion 3.2 to form a slide rail 3. The slide rail 3 has a slider 6 that can move along the length of the slide rail.

[0032] The clamp support 1 is detachably connected to the slider 6 and is movable in the length direction of the slide rail 3.

[0033] Furthermore, the slide rail 3 has multiple positioning holes 3.3 and detachable positioning pins distributed at intervals. The positioning pins are inserted into the positioning holes 3.3 to lock the position of the clamp support 1.

[0034] Furthermore, the clamp support 1 includes a support top seat 1.1 and four connecting posts 1.2 perpendicularly connected to the support top seat 1.1. Each slide rail 3 is provided with two sliders 6, and the two connecting posts 1.2 located on one side are fixed to the two sliders 6 of the same slide rail 3 by the adapter plate 2.

[0035] In other embodiments, the clamp support 1 may also include a support top seat and two relatively parallel connecting plates that are perpendicularly connected to the support top seat, and the two connecting plates are respectively fixed on two slide rails 3 by sliders.

[0036] Furthermore, the support top seat 1.1 includes two opposing support vertical beams and multiple support horizontal beams disposed between the support vertical beams, such as... Figure 1 As shown, the supporting beam is a beam parallel to the slide rail 3.

[0037] Furthermore, the surface of the clamp support beam is covered with an elastic cushioning pad.

[0038] Furthermore, the adapter plate 2 includes multiple mounting holes 2.1, such as... Figure 2 As shown, in some embodiments, it specifically includes a first mounting hole located in the center and second mounting holes located on both sides. The first mounting hole is used to fix the adapter plate to the slide rail, such as... Figure 3 The following is along Figure 2 The diagram shows a cross-section of the adapter plate cut with dashed lines. The mounting holes can be wider at the top and narrower at the bottom to facilitate the placement of the locking pin. The second mounting holes are used to fix the adapter plate to the connecting post. Specifically, the left side of the mounting plate includes four second mounting holes, and the right side includes four second mounting holes.

[0039] Furthermore, the length of the track base 3.1 is 2 to 3 times the length of the column 4.1. The track base provides a longer extended track foundation to allow the clamp support to move arbitrarily in this direction. In addition, depending on the actual weight of the clamp, it is possible to consider adding a counterweight to the base to balance the weight, or to consider adding a fixing rod to the track base below the clamp support.

[0040] Furthermore, the bottom of the base 4 is equipped with multiple casters 5.

[0041] Furthermore, a latch is provided between the slider 6 and the slide rail 3. The slider latch includes: a manual knob exposed on the side of the slider; and an eccentric locking block. The latch is driven by rotating the manual knob to press the slide rail to achieve self-locking. This latch structure is a common technical means, so it is not shown in the attached figure.

[0042] The method of using this device to disassemble the clamp includes:

[0043] 1. Pre-adjustment and safety preparation

[0044] Adjust the load-bearing casters to ensure that the base of the device is completely level with the test machine table.

[0045] Operate the control panel of the testing machine, slowly move the crossbeam to reduce the distance between the upper and lower hydraulic clamps to within 5cm, and vertically insert the pre-prepared flat load-bearing steel plate into the clamping area of ​​the upper and lower clamps, and lock the upper and lower clamps by the steel plate.

[0046] Remove the bolts or pins connecting the hydraulic clamp to the base of the testing machine. When disassembling, use the diagonal loosening method to release the preload in stages to avoid stress concentration.

[0047] 2. Lower clamp transfer and temporary fixation

[0048] Slowly raise the crossbeam of the test machine at a low speed, and observe the gap between the steel plate and the fixture in real time, until the bottom of the lower fixture is completely higher than the upper surface of the fixture support crossbeam, for example, at least 20mm higher.

[0049] Push the clamp support along the slide rail until its center line is aligned with the lifting hole of the lower clamp, and lock it in place using the latch;

[0050] The crossbeam descends at a low speed, causing the bottom surface of the lower clamp to contact the elastic buffer pad of the support crossbeam of the clamp support seat.

[0051] 3. Disengage and release the clamp linkage.

[0052] Remove the load-bearing steel plate, fine-tune the descent speed of the testing machine beam to an ultra-low speed, so that the bottom surface of the upper clamp and the top surface of the lower clamp make slight contact, and remove the bolts or pins connecting the upper clamp and the beam. Use guide pins to help maintain the stability of the clamp posture during disassembly.

[0053] 4. Device Reset and Status Confirmation

[0054] Unlock the latch and slowly push the clamp support to the target position along the slide rail.

[0055] The loading fixture is the reverse of the above steps.

[0056] The above are exemplary embodiments disclosed in this utility model. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this utility model as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this utility model may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0057] It should be understood that, as used herein, the singular form “a” is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, “and / or” refers to any and all possible combinations of one or more of the associated listed items.

[0058] The embodiment numbers disclosed in the above-described embodiments of the present utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0059] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the framework of the present invention, technical features of the above embodiments or different embodiments can also be combined, and many other variations of different aspects of the present invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device capable of simultaneously and quickly changing upper and lower hydraulic clamps, characterized in that, include: The base is a frame structure composed of multiple columns. The ends of any group of relatively parallel columns at the top of the base extend outward to form a track base. Each track base is further provided with a protrusion to form a slide rail. The slide rail has a slider that can move along the length of the slide rail. A clamp support is detachably connected to the slider and movable along the length of the slide rail.

2. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 1, characterized in that, The slide rail has multiple positioning holes and detachable positioning pins spaced apart. The positioning pins are inserted into the positioning holes to lock the position of the clamp support.

3. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 1, characterized in that, The clamp support base includes a support top base and two parallel connecting plates that are perpendicularly connected to the support top base. The two connecting plates are respectively fixed on two slide rails by the slider.

4. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 1, characterized in that, The clamp support base includes a support top base and four connecting columns perpendicularly connected to the support top base. Each slide rail is provided with two sliders, and the two connecting columns located on one side are fixed to the two sliders of the same slide rail by an adapter plate.

5. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 3 or 4, characterized in that, The support top includes two opposing support vertical beams and a plurality of support horizontal beams disposed between the support vertical beams.

6. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 5, characterized in that, The surface of the clamp support beam is covered with an elastic buffer pad.

7. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 4, characterized in that, The adapter plate includes a first mounting hole located in the center and second mounting holes located on both sides. The first mounting hole is used to fix the adapter plate to the slide rail, and the second mounting holes are used to fix the adapter plate to the connecting column.

8. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 1, characterized in that, The length of the track base is 2 to 3 times the length of the column.

9. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 1, characterized in that, The base is equipped with multiple casters at its bottom.

10. The device for simultaneously and quickly changing upper and lower hydraulic clamps according to claim 1, characterized in that, A latch is also provided between the slider and the slide rail. The slider latch includes: a manual knob exposed on the side of the slider; and an eccentric locking block, which is driven by rotating the manual knob to press the slide rail to achieve self-locking.

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