A pinch testing machine

Abstract

This invention provides a clamping test machine, including a base; a control cabinet is installed at one end of the base; a lifting channel steel rail is installed on the base and located near the control cabinet, with recessed track grooves on opposite sides inside; a lifting assembly is installed inside the lifting channel steel rail and driven to move up and down by a lifting hydraulic cylinder; a relative motion assembly is installed on the lifting assembly, forming a space to accommodate the test piece within the relative motion assembly; a pair of pressure plates are provided, respectively installed on side support plates within the relative motion assembly. This invention uses the lifting assembly installed in the lifting channel steel rail on the base to drive the relative motion assembly to meet the height requirements of the product to be tested. The clamping strength of the pressure plates driven by the relative motion assembly simulates the environmental pressure experienced during transportation, adapting to the clamping requirements of various products. The product is easy to install, the test operation is simple, and it facilitates rapid testing.

Description

Technical Field

[0001] This utility model relates to the field of testing machines, and in particular to the field of clamping testing machines, specifically a clamping testing machine. Background Technology

[0002] During the export transportation of large home appliances such as refrigerators and washing machines, the protective performance of the packaging directly affects the product's ability to withstand complex conditions such as bumps, collisions, and compression. Current technologies often use vibration tables to simulate vertical vibration, impact testing machines to detect unidirectional instantaneous impacts, or robotic arms to simulate multi-dimensional bumps. However, these devices generally suffer from problems such as limited testing dimensions, complex equipment structures, and high costs. For example, vibration tables struggle to reproduce multi-directional composite stresses during transportation, impact testing machines cannot simulate continuous dynamic loads, and while robotic arm systems can partially replicate complex conditions, their complex programming and poor adaptability make them difficult to flexibly adapt to home appliance packaging of different sizes and shapes.

[0003] Furthermore, traditional clamping devices mostly employ fixed structures, making it impossible to dynamically adjust the clamping force and contact area. This can lead to localized stress concentration or clamping failure during testing, affecting data accuracy. Therefore, there is an urgent need to develop a testing device that integrates multi-directional force application and operational condition simulation to comprehensively verify packaging protection performance in a low-cost and high-precision manner, meeting international transportation standards and reducing the risk of cargo damage due to packaging failure. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a clamping test machine to solve the difficulties of the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a clamping test machine, comprising:

[0006] Base 1;

[0007] Control cabinet 2, one end of the base 1 is equipped with control cabinet 2;

[0008] The lifting channel steel rail 3 is installed on the base 1 and is located near the control cabinet 2. Recessed track grooves are provided on the opposite sides of the interior.

[0009] The lifting assembly is installed inside the lifting channel steel rail 3 and moves up and down by the drive of the lifting hydraulic cylinder 4;

[0010] A relative motion assembly is mounted on a lifting assembly, and a space for accommodating the object to be detected is formed within the relative motion assembly;

[0011] Pressure plate 17, a pair of pressure plates 17 are provided, respectively installed on a pair of oppositely arranged side support plates 5 in the relative motion assembly.

[0012] According to the preferred embodiment, the lifting assembly includes:

[0013] The lifting hydraulic cylinder 4 is vertically installed inside the lifting channel steel rail 3, with the hydraulic shaft located at the top.

[0014] A toothed sprocket 6 is mounted on top of the hydraulic shaft of the lifting hydraulic cylinder 4, and a chain passes through the toothed sprocket 6;

[0015] The lifting plate assembly 7 has its two ends slidably set in the lifting channel steel rail 3, and the middle connecting plate 8 is installed with the chain through the assembly. The lifting plate assembly 7 is adjusted up and down as the lifting hydraulic cylinder 4 drives and moves with the chain.

[0016] According to the preferred embodiment, the lifting hydraulic cylinder 4 is installed on the central axis of the lifting channel steel rail 3.

[0017] According to the preferred embodiment, the relative motion component includes:

[0018] A pair of connecting plates 9 are provided and are respectively installed on both sides of the lifting plate group 7. A horizontal hydraulic connector 10 is integrally extended on one side of the connecting plate 9 toward the side support plate 5. The horizontal hydraulic connectors 10 of the pair of connecting plates 9 are staggered vertically.

[0019] A horizontal hydraulic cylinder 11 is horizontally mounted on a horizontal hydraulic connector 10, and a pair of horizontal hydraulic cylinders 11 are staggered vertically.

[0020] A horizontal guide rail 12 is installed on each of the connecting plates 9;

[0021] Slide rail 13, two sets of slide rail 13 are installed on each of the horizontal guide rails 12, and each of the side support plates 5 is respectively connected to a set of slide rail 13 located on the upper and lower horizontal guide rails 12.

[0022] According to the preferred embodiment, the side support plate 5 is provided with a serrated edge on the side near the horizontal guide rail 12, and the empty gap passes through the horizontal guide rail 12 and the horizontal hydraulic cylinder 11.

[0023] According to the preferred embodiment, the end of the side support plate 5 away from the horizontal guide rail 12 is configured as a V-shaped structure.

[0024] According to a preferred embodiment, the base 1 includes a front base 14 and a rear base 15. The front base 14 is equipped with a control cabinet 2 and a lifting channel steel rail 3, and the rear base 15 is used to place the equipment to be tested.

[0025] The front base 14 extends away from the control cabinet 2 at one end and is embedded below the rear base 15.

[0026] According to the preferred embodiment, the front base 14 and the rear base 15 are coaxially arranged.

[0027] According to the preferred embodiment, a clamping reinforcement plate 16 is installed between the pressure plate 17 and the side support plate 5.

[0028] According to the preferred embodiment, a protective net is installed on the outer side of the rear base 15.

[0029] This invention utilizes a lifting assembly installed within a lifting channel steel rail on a base to drive a relative motion assembly, thereby meeting the height requirements of the product to be tested. By employing the relative motion assembly to drive a pressure plate to clamp the product at the required height, the clamping strength simulates the environmental pressure experienced during transportation, adapting to the clamping needs of various products. The product is easy to install, the testing process is simple, and it facilitates rapid testing.

[0030] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0031] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0032] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0033] Figure 3 The diagram shown is a partial structural schematic of this utility model;

[0034] Figure 4 The diagram shown is an enlarged three-dimensional structural schematic of the lifting plate assembly in this utility model.

[0035] Figure 5 The diagram shown is an enlarged three-dimensional structural schematic of the lifting component and the relative motion component of this utility model.

[0036] Figure 6 This utility model is shown to be related to Figure 5 Another perspective of the three-dimensional structure diagram;

[0037] Label Explanation

[0038] 1. Base; 2. Control cabinet; 3. Lifting channel steel rail; 4. Lifting hydraulic cylinder; 5. Side support plate; 6. Toothed sprocket; 7. Lifting plate assembly; 8. Intermediate connecting plate; 9. Connecting plate; 10. Horizontal hydraulic connector; 11. Horizontal hydraulic cylinder; 12. Horizontal guide rail; 13. Slide rail; 14. Front base; 15. Rear base; 16. Clamping plate reinforcement plate; 17. Pressure plate. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0040] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0041] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0042] This utility model proposes a clamping test machine for use in the clamping test process of product packaging. This utility model does not limit the type of product, but the structure of the clamping test machine is particularly suitable for refrigerators or washing machines.

[0043] In general, the clamping testing machine proposed in this utility model mainly includes a base 1, a control cabinet 2, a lifting channel steel rail 3, a lifting assembly, a relative motion assembly, and a pressure plate 17. See also... Figure 1 It shows the arrangement of base 1, control cabinet 2, lifting channel steel rail 3, lifting assembly, relative motion assembly, and pressure plate 17.

[0044] To simulate the impact of collisions during the transportation of packaged refrigerators or washing machines, this paper addresses the issue that packaging performance directly affects the product's ability to withstand complex conditions such as bumps, collisions, and compression during the export transportation of large household appliances like refrigerators and washing machines. Current technologies often use vibration tables to simulate vertical vibration, impact testing machines to detect unidirectional instantaneous impacts, or robotic arms to simulate multi-dimensional bumps. However, these devices generally suffer from problems such as limited testing dimensions, complex structures, and high costs. For example, vibration tables struggle to reproduce multi-directional composite stresses during transportation, impact testing machines cannot simulate continuous dynamic loads, and while robotic arm systems can partially replicate complex conditions, their complex programming and poor adaptability make them difficult to flexibly adapt to packaging of different sizes and shapes of household appliances. Furthermore, traditional clamping devices often employ fixed structures, making it impossible to dynamically adjust the clamping force and contact area. This can lead to localized stress concentration or clamping failure during testing, affecting data accuracy. Therefore, there is an urgent need to develop a testing device that integrates multi-directional force application and working condition simulation to comprehensively verify the protective performance of packaging in a low-cost and high-precision manner, meet international transportation standards, and reduce the risk of cargo damage caused by packaging failure. To this end, the technical solution provided in this embodiment uses a lifting component installed in the lifting channel steel rail 3 on the base 1 to drive a relative motion component to meet the height requirements of the product to be tested. The clamping strength of the pressure plate 17 driven by the relative motion component simulates the environmental pressure during transportation, adapting to the clamping requirements of various products. The product is easy to install, the test operation process is simple, and it is conducive to achieving rapid testing results. After the test is completed, the packaging can be opened to check whether there are marks, dents, scratches, etc. on the surface of the refrigerator.

[0045] like Figure 1 As shown, the base 1 includes a front base 14 and a rear base 15, which are coaxially arranged. The control cabinet 2 and the lifting channel steel rail 3 are installed at one end of the front base 14, and the other end extends and is embedded under the rear base 15 to form a stable support structure. The nested design and coaxial layout of the front base 14 and the rear base 15 here ensure the overall center of gravity is balanced. The rear base 15 is used to place the equipment to be tested. A protective net 17 is welded on its outside to prevent external objects from interfering with the testing process, and also to protect the operators.

[0046] Next, the control cabinet 2 is fixedly installed on one end of the front base 14 near the lifting channel steel rail 3. It integrates a hydraulic control system and electrical components to drive the hydraulic cylinder and coordinate the movement of each component.

[0047] In order to enable the lifting assembly and the relative motion assembly to move stably, a lifting channel steel rail 3 is vertically installed on the front base 14 on the side near the control cabinet 2. At the same time, the lifting channel steel rail 3 has symmetrical recessed rail grooves on both sides inside to guide the lifting assembly to move smoothly.

[0048] Next, this embodiment provides a lifting assembly installed within the lifting channel steel rail 3 and moved up and down by a lifting hydraulic cylinder 4. The lifting assembly includes a lifting hydraulic cylinder 4, a toothed sprocket 6, and a lifting plate assembly 7. The lifting hydraulic cylinder 4 is vertically fixed on the central axis of the lifting channel steel rail 3, with its hydraulic axis extending upwards. The toothed sprocket 6 is installed at the top, meshing with the chain. The chain rises and falls with the rise and fall of the toothed sprocket. The figures in this embodiment are not shown, but represent the prior art, namely a chain-type hydraulic lifting platform. The lifting hydraulic cylinder 4 serves as the power source. The piston movement of the lifting hydraulic cylinder 4 drives the chain to rotate, thereby realizing the movement of the lifting platform. At the same time, the lifting plate assembly 7 consists of a middle connecting plate and two sliding blocks on both sides. The sliding blocks are embedded in the rail groove, and the middle connecting plate is connected to the chain through a pin. In use, when the lifting hydraulic cylinder 4 drives the toothed sprocket 6 to rotate, the chain drives the lifting plate assembly 7 to move up and down along the rail groove, realizing height adjustment.

[0049] Based on this, the relative motion components installed on the lifting assembly include: a pair of connecting plates 9, a horizontal hydraulic connector 10, a horizontal hydraulic cylinder 11, a horizontal guide rail 12, and a slide rail 13. The specific structure is as follows: the connecting plates 9 are symmetrically fixed on both sides of the lifting plate assembly 7. Each connecting plate 9 extends a horizontal hydraulic connector 10 integrally from one side facing the side support plate 5, and they are staggered vertically. The horizontal hydraulic cylinder 11 is horizontally installed on the horizontal hydraulic connector 10, also staggered vertically, and its hydraulic shaft is connected to the side support plate 5. The horizontal guide rail 12 is fixed on the connecting plate 9, and two sets of slide rails 13 are installed on each set of guide rails, which are respectively connected to the top and bottom of the side support plate 5. The side of the side support plate 5 near the horizontal guide rail 12 is designed with a sawtooth shape, and the sawtooth gap is used to pass through the horizontal guide rail 12 and the horizontal hydraulic cylinder 11. The end away from the guide rail has a V-shaped structure, which facilitates the rapid and stable installation of workpieces on the pressure plate 2 and can also adapt to various workpiece shapes.

[0050] As mentioned above, a pair of pressure plates 17 are provided, respectively mounted on a pair of opposing side support plates 5 within the relative motion assembly. The side support plates 5 and pressure plates 17 are reinforced by clamping reinforcement plates 16 to ensure clamping stability. In use, the side support plates 5 are driven by the horizontal hydraulic cylinder 11 to move towards or away from each other along the slide rail 13, adjusting the distance between the pair of pressure plates 17 to accommodate test pieces of different sizes.

[0051] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A clamping test machine, characterized in that, include: Base (1); Control cabinet (2), the control cabinet (2) is installed at one end of the base (1); The lifting channel steel rail (3) is installed on the base (1) and is located close to the control cabinet (2). The inner side surfaces are provided with recessed rail grooves. The lifting assembly is installed in the lifting channel steel rail (3) and moves up and down by the drive of the lifting hydraulic cylinder (4); A relative motion assembly is mounted on a lifting assembly, and a space for accommodating the object to be detected is formed within the relative motion assembly; Pressure plate (17), the pressure plate (17) is provided in a pair, which are respectively installed on a pair of oppositely arranged side support plates (5) in the relative motion assembly.

2. The clamping test machine according to claim 1, characterized in that, The lifting assembly includes: The lifting hydraulic cylinder (4) is vertically installed in the lifting channel steel rail (3), with the hydraulic shaft located above. A toothed sprocket (6) is mounted on the top of the hydraulic shaft of the lifting hydraulic cylinder (4), and a chain passes through the toothed sprocket (6); The lifting plate assembly (7) has its two ends slidably set in the lifting channel steel rail (3), and the middle connecting plate (8) is installed with the chain through the assembly. The lifting plate assembly (7) is driven by the lifting hydraulic cylinder (4) and moves up and down with the chain.

3. The clamping test machine according to claim 2, characterized in that, The relative motion component includes: A pair of connecting plates (9) are provided and are respectively installed on both sides of the lifting plate assembly (7). A horizontal hydraulic connector (10) is integrally extended on one side of the connecting plate (9) toward the side support plate (5). The horizontal hydraulic connectors (10) of the pair of connecting plates (9) are staggered vertically. A horizontal hydraulic cylinder (11) is horizontally mounted on a horizontal hydraulic connector (10), and a pair of horizontal hydraulic cylinders (11) are staggered vertically. A horizontal guide rail (12) is installed on each of the connecting plates (9); Slide rails (13), two sets of slide rails (13) are installed on each of the horizontal guide rails (12), and each of the side support plates (5) is respectively connected to a set of slide rails (13) located on the upper and lower horizontal guide rails (12).

4. The clamping test machine according to claim 3, characterized in that, The side support plate (5) is configured in a V-shape at the end away from the horizontal guide rail (12).

5. The clamping test machine according to claim 4, characterized in that, The base (1) includes a front base (14) and a rear base (15). The front base (14) is equipped with a control cabinet (2) and a lifting channel steel rail (3). The rear base (15) is used to place the equipment to be tested. The front base (14) extends away from the control cabinet (2) and is embedded below the rear base (15).

6. The clamping test machine according to claim 5, characterized in that, A clamping reinforcement plate (16) is installed between the pressure plate (17) and the side support plate (5).

7. The clamping test machine according to claim 6, characterized in that, A protective net is installed on the outside of the rear base (15).

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