Workpiece strength detection device capable of automatically stopping

Abstract

The invention discloses a workpiece strength detection device capable of automatically stopping, and belongs to the technical field of workpiece strength detection. The detection mechanism comprises a lower pressure head arranged on the main bracket and is used for carrying out pressure test on the workpiece; the detection mechanism is further provided with an adjusting part which comprises a pressing plate arranged on the main support and is used for adjusting the threshold value of pressure borne by the workpiece. The pressurizing assembly comprises a pressurizing pipe arranged on the main bracket and is used for conveying hydraulic oil; according to the device, when hydraulic oil is continuously pressurized to enable a pressing plate to move downwards to a preset threshold value, a nut on the pressing plate can make contact with the inclined face of a wedge-shaped plate, the wedge-shaped plate is pushed to drive a connecting rod to move, then a conversion head in a containing pipe slides, a through hole of the conversion head is aligned with a pressure relief pipe, and the hydraulic oil in a pressurizing pipe is rapidly guided back to a hydraulic oil tank; therefore, damage conditions such as breakage and deformation of the workpiece due to excessive pressure are avoided, and the loss of the workpiece in the detection process is reduced.

Description

Technical Field

[0001] This invention belongs to the field of workpiece strength testing technology, specifically a workpiece strength testing device that can automatically stop. Background Technology

[0002] In industrial production, workpiece strength is a core indicator that determines product quality, safety, and service life. All kinds of products, from mechanical parts and building components to packaging materials, must undergo rigorous strength testing to ensure they meet application requirements.

[0003] Currently, workpiece strength testing devices on the market are mainly divided into two categories: manual control type and semi-automatic control type. However, they generally have obvious limitations: manual control type devices rely on operators' experience to judge the pressure and shutdown time, which not only results in low detection accuracy and large human error, but also easily leads to workpiece breakage and damage due to excessive pressure, resulting in material waste; semi-automatic control type devices can initially achieve pressure automation, but most lack precise pressure threshold adjustment function, making it difficult to adapt to the testing needs of workpieces with different materials and different strength requirements. Moreover, in complex industrial environments, they are easily affected by electromagnetic interference, power outages and other factors, resulting in delayed shutdown response or failure. Summary of the Invention

[0004] The purpose of this invention is to provide a workpiece strength testing device that can automatically stop, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a workpiece strength testing device capable of automatic stopping, comprising: The main support frame is used to support the components; The testing mechanism includes a pressure head arranged on the main support for pressure testing of the workpiece; the testing mechanism is also equipped with adjustment components, including a pressure plate arranged on the main support for adjusting the pressure threshold that the workpiece can withstand. The pressurization assembly includes a pressurization pipe arranged on the main support for delivering hydraulic oil; a stop feedback assembly, including a wedge plate, is also provided for depressurizing the hydraulic oil in the pressurization pipe. Fixed components, including a support frame arranged on the main support, are used to support the workpiece.

[0006] As a further preferred embodiment of this technical solution, the testing mechanism further includes: A slide bar is used to move the lower pressure head, and the lower pressure head is fixedly arranged at the lower end of the slide bar; The outer casing is installed through the main support to accommodate the slide rod, and the upper piston of the slide rod is connected inside the outer casing, as is the middle piston of the pressure plate.

[0007] As a further preferred embodiment of this technical solution, the bottom of the pressing head is provided with a rubber layer.

[0008] As a further preferred embodiment of this technical solution: the adjustment component further includes: A receiving groove is formed on the slide bar, and the lower end of the pressure plate is slidably connected in the receiving groove; The pressure spring is fixedly arranged at the middle of the pressure plate at its upper end and at the upper end of the slide rod at its lower end. Nuts, located at the upper end of the pressure plate, are used to adjust the pressure threshold. The tension gauge is mounted on the vertical plate of the main support, and the hook at the lower end of the tension gauge is connected to the pull ring at the upper end of the pressure plate.

[0009] As a further preferred embodiment of this technical solution: the upper end of the pressure plate is provided with a threaded structure, and the nut is threadedly connected to the threaded structure of the pressure plate.

[0010] As a further preferred embodiment of this technical solution, the pressurization structure further includes: The pressure relief pipe is installed through the pressure pipe and is connected to the pressure pipe; A receiving pipe is installed on the pressure relief pipe and is connected to the pressure relief pipe; The adapter, which is slidably connected inside the receiving tube, is used to control the direction of hydraulic oil.

[0011] As a further preferred embodiment of this technical solution, the converter head is provided with a through hole.

[0012] As a further preferred embodiment of this technical solution: the stop feedback component further includes: The connecting rod has one end slidably connected to the receiving tube and the other end slidably connected to the vertical plate at the top of the outer shell, and one end of the connecting rod is fixedly arranged on the conversion head; The return spring has one end fixedly attached to one side of the adapter and the other end fixedly attached to the receiving tube. The hydraulic oil tank, mounted on the main support, is used to store hydraulic oil; The hydraulic oil pump has its inlet end fixedly connected to the bottom of the hydraulic oil tank, and its outlet end fixedly connected to the pressure pipe. It is used to transport the hydraulic oil in the hydraulic oil tank to the outer casing through the pressure pipe.

[0013] As a further preferred embodiment of this technical solution: the wedge plate is fixedly arranged at the other end of the connecting rod, and the upper end of the wedge plate is set with an inclined surface.

[0014] As a further preferred embodiment of this technical solution, the fixing component further includes: The support plate is fixedly mounted on the support frame and is used to fix the workpiece. The fixed plate is slidably connected in the T-slot opened on the support frame and is used to fix the workpiece in conjunction with the support plate; The fixing bolts are threaded through the support plate and used to fix the fixing plate. The adjusting bolt, threaded onto one side of the support frame, is used to limit the position of the adjusted support frame; Threaded holes are provided on both sides of the main bracket, and the adjusting bolts are threaded onto the threaded holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, when the hydraulic oil is continuously pressurized and the pressure plate moves down to a preset threshold, the nut on the pressure plate will contact the inclined surface of the wedge plate, pushing the wedge plate to drive the connecting rod to move, thereby causing the conversion head in the receiving tube to slide. Its through hole is aligned with the pressure relief pipe, quickly guiding the hydraulic oil in the pressurization pipe back to the hydraulic oil tank, immediately stopping the pressure of the lower pressure head on the workpiece, avoiding damage such as cracking or deformation of the workpiece due to excessive pressure, and reducing workpiece loss during the testing process.

[0016] 2. In this invention, the pressure threshold required for different workpieces can be changed by turning the nut, which can adapt to the strength testing requirements of workpieces of different materials. At the same time, the tension gauge on the main support vertical plate is connected to the pressure plate pull ring through the pull hook, which can display the pressure data in real time during the testing process, allowing the operator to clearly grasp the loading force. Moreover, the tension gauge is detachably connected by bolts, and different specifications of tension gauges can be replaced according to the requirements of testing accuracy or strength range, further expanding the applicable testing scenarios.

[0017] 3. In this invention, by adjusting the bolts and the threaded holes on both sides of the main support, the support frame can be moved by loosening the adjusting bolts, and the distance between the two sets of support frames can be adjusted to meet the support requirements of workpieces of different lengths and sizes. In addition, after adjusting the distance between the support frames, the compressive strength test can be performed on different span positions of the workpiece, which solves the limitation of traditional fixing devices that can only test a single specification and a single position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a workpiece strength testing device that can automatically stop according to the present invention. Figure 1 ; Figure 2 This is a partial structural cross-sectional view of a workpiece strength testing device that can automatically stop according to the present invention; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the structure of a workpiece strength testing device that can automatically stop according to the present invention. Figure 2 ; Figure 6This is a partial exploded view of the workpiece strength testing device with automatic stopping capability according to the present invention. Figure 7 This is a partial structural schematic diagram of a workpiece strength testing device that can automatically stop according to the present invention.

[0019] Legend: 1. Main support frame; Testing components: 201. Lower pressure head; 202. Slide rod; 203. Housing; Adjustment components: 204, receiving groove; 205, pressure plate; 206, pressure spring; 207, nut; 208, tension gauge; Pressurization structure: 301, pressurization pipe; 302, pressure relief pipe; 303, adapter; 309, receiving pipe; Stop feedback components: 304, connecting rod; 305, return spring; 306, wedge plate; 307, hydraulic oil tank; 308, hydraulic oil pump; Fixed components: 401, support frame; 402, support plate; 403, fixing plate; 404, fixing bolt; 405, adjusting bolt; 406, threaded hole. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example

[0023] Please see Figures 1-7 As shown, the present invention provides a technical solution: a workpiece strength testing device that can automatically stop, comprising: Main support 1, used to support the components; The testing mechanism includes a pressure head 201 arranged on the main support 1 for performing pressure tests on the workpiece; the testing mechanism is also provided with an adjustment component, including a pressure plate 205 arranged on the main support 1 for adjusting the pressure threshold that the workpiece can withstand. The pressurization assembly includes a pressurization pipe 301 arranged on the main support 1 for conveying hydraulic oil; a stop feedback assembly is also provided, including a wedge plate 306 for depressurizing the hydraulic oil in the pressurization pipe 301. The fixing component includes a support frame 401 arranged on the main support 1 for supporting the workpiece.

[0024] It should be noted that the pressure plate 205 is cross-shaped.

[0025] In this embodiment, the detection mechanism further includes: a slide rod 202 for moving the lower pressure head 201, and the lower pressure head 201 is fixedly arranged at the lower end of the slide rod 202; a housing 203, which is disposed through the main support 1 for accommodating the slide rod 202, and the upper end of the slide rod 202 is piston-connected inside the housing 203, and the middle part of the pressure plate 205 is piston-connected inside the housing 203.

[0026] The connection between the slide rod 202 and the outer casing 203 is provided with a sealing gasket, and the upper end of the pressure plate 205 slides through the upper end of the outer casing 203, with a sealing gasket at the connection.

[0027] In this embodiment, specifically, the bottom of the pressing head 201 is provided with a rubber layer.

[0028] In this embodiment, specifically: the adjustment component further includes: a receiving groove 204, which is formed on the slide rod 202, and the lower end of the pressure plate 205 is slidably connected in the receiving groove 204; a pressure spring 206, the upper end of which is fixedly arranged in the middle of the pressure plate 205, and the lower end of which is fixedly arranged in the upper end of the slide rod 202; a nut 207, which is arranged in the upper end of the pressure plate 205, and is used to adjust the pressure threshold; and a tension gauge 208, which is set on the vertical plate on the main support 1, and the hook at the lower end of the tension gauge 208 is connected to the pull ring at the upper end of the pressure plate 205.

[0029] It should be noted that the tensile gauge 208 is connected to the vertical plate on the main bracket 1 by a thread, and the tensile gauge 208 with different test strengths can be replaced by removing the bolts as needed.

[0030] The receiving groove 204 is T-shaped, the bottom of the pressure plate 205 is T-shaped to fit the receiving groove 204, and a sealing gasket is provided at the connection between the pressure plate 205 and the receiving groove 204.

[0031] In this embodiment, specifically: the upper end of the pressure plate 205 is provided with a threaded structure, and the nut 207 is threadedly connected to the threaded structure of the pressure plate 205.

[0032] In this embodiment, the pressurization structure further includes: a pressure relief pipe 302, which is disposed through the pressure relief pipe 301 and communicates with the pressure relief pipe 301; a receiving pipe 309, which is disposed on the pressure relief pipe 302 and communicates with the pressure relief pipe 302; and a conversion head 303, which is slidably connected in the receiving pipe 309 and is used to control the direction of the hydraulic oil.

[0033] It should be noted that one end of the pressure relief pipe 302 is fixedly connected to one side of the hydraulic oil tank 307, and is used to transport the depressurized hydraulic oil back into the hydraulic oil tank 307.

[0034] In this embodiment, specifically: the adapter 303 is provided with a through hole.

[0035] In this embodiment, specifically, the stop feedback component further includes: a connecting rod 304, one end of which is slidably connected to the receiving tube 309, and the other end of which is slidably connected to the vertical plate at the upper end of the outer shell 203, and one end of the connecting rod 304 is fixedly arranged on the conversion head 303; a reset spring 305, one end of which is fixedly arranged on one side of the conversion head 303, and the other end of which is fixedly arranged on the receiving tube 309; a hydraulic oil tank 307, which is set on the main support 1 and is used to store hydraulic oil; and a hydraulic oil pump 308, with its inlet end fixedly connected to the bottom of the hydraulic oil tank 307 and its outlet end fixedly connected to the pressure pipe 301, for transporting the hydraulic oil in the hydraulic oil tank 307 into the outer shell 203 through the pressure pipe 301.

[0036] It should also be understood that a sealing gasket is provided at the connection between the connecting rod 304 and the receiving tube 309.

[0037] The upper end of the hydraulic oil tank 307 is provided with a cover connected by bolts, and the cover is provided with a feeding port, which is sealed by a threaded cap.

[0038] In this embodiment, specifically: the wedge plate 306 is fixedly arranged at the other end of the connecting rod 304, and the upper end of the wedge plate 306 is set as an inclined surface.

[0039] In this embodiment, specifically: the fixing component further includes: a support plate 402, fixedly arranged on the support frame 401, used to fix the workpiece; a fixing plate 403, slidably connected in the T-slot opened on the support frame 401, used to cooperate with the support plate 402 to fix the workpiece; a fixing bolt 404, threadedly connected to the support plate 402, used to fix the fixing plate 403; an adjusting bolt 405, threadedly connected to one side of the support frame 401, used to limit the adjusted support frame 401; and threaded holes 406, opened on both sides of the main bracket 1, with the adjusting bolt 405 threadedly connected to the threaded holes 406.

[0040] Working principle or structural principle: When in use, first place the workpiece on the two sets of support frames 401, then move the fixing plate 403 in turn to slide on the groove on the support frame 401. When one end of the fixing plate 403 is engaged in the groove on the support plate 402, tighten the fixing bolt 404 to fix the fixing plate 403. The distance between the two sets of support frames 401 can be adjusted and fixed by tightening the adjusting bolt 405 in conjunction with several sets of threaded holes 406, which is convenient for users to test the compressive strength of the workpiece at different spans. Then, according to the material of the workpiece being tested, the nut 207 is tightened. The nut 207 moves through the threaded structure at the upper end of the pressure plate 205. When the nut 207 moves to the pressure threshold corresponding to the tension gauge 208, the hydraulic oil pump 308 is then turned on. The hydraulic oil pump 308 delivers hydraulic oil from the hydraulic oil tank 307 to the pressure pipe 301, and then through the pressure pipe 301 into the outer casing 203. With the continuous output of hydraulic oil, the hydraulic oil compresses the pressure plate 205. The pressure plate 205 drives the slide rod 202 to slide downward on the outer shell 203 through the pressure spring 206. When the lower pressure head 201 contacts the surface of the workpiece, the pressure plate 205 is continuously squeezed by the continuous output of hydraulic oil, so that the lower end of the pressure plate 205 slides in the receiving groove 204. At the same time, the pressure plate 205 is continuously pressed down, squeezing the pressure spring 206. The reverse pressure of the pressure spring 206 continuously applies pressure to the slide rod 202, so that the lower pressure head 201 continuously applies pressure to the workpiece. Simultaneously, as the pressure plate 205 moves downward, it drives the hook on the tension gauge 208 to move downward, causing the tension gauge 208 to display the applied pressure data. As pressure is continuously applied to the pressure plate 205, when the nut 207, which has reached the preset pressure threshold, contacts the wedge plate 306, the inclined surface on the wedge plate 306 causes the wedge plate 306 to move to one side. The wedge plate 306 drives the connecting rod 304 to slide on the vertical plate on the receiving tube 309 and the outer shell 203. The connecting rod 304 drives the conversion head 303 to slide to one side in the receiving tube 309 and compress the return spring 305. When the through hole on the conversion head 303 corresponds to the pressure relief pipe 302, the hydraulic oil pressurized in the pressure pipe 301 is released back into the hydraulic oil tank 307 through the pressure relief pipe 302, thereby stopping the continuous pressure applied to the workpiece by the pressure head 201. Pressure is released when the workpiece reaches the preset pressure threshold to prevent damage to the workpiece.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A workpiece strength testing device capable of automatic stopping, characterized in that: include: Main support (1) is used to support components; The testing mechanism includes a pressure head (201) arranged on the main support (1) for performing pressure tests on the workpiece; the testing mechanism is also provided with an adjustment component, including a pressure plate (205) arranged on the main support (1) for adjusting the pressure threshold that the workpiece can withstand. The pressurization assembly includes a pressurization pipe (301) arranged on the main support (1) for conveying hydraulic oil; and a stop feedback assembly including a wedge plate (306) for depressurizing the hydraulic oil in the pressurization pipe (301); The fixing component includes a support frame (401) arranged on the main support (1) for supporting the workpiece.

2. The workpiece strength testing device with automatic stopping capability according to claim 1, characterized in that: The testing institution also includes: The slide bar (202) is used to drive the lower pressure head (201) to move, and the lower pressure head (201) is fixedly arranged at the lower end of the slide bar (202); The outer casing (203) is installed through the main support (1) to accommodate the slide rod (202), and the upper end of the slide rod (202) is connected to the piston inside the outer casing (203), and the middle part of the pressure plate (205) is connected to the piston inside the outer casing (203).

3. The workpiece strength testing device with automatic stopping capability according to claim 2, characterized in that: The bottom of the pressure head (201) is provided with a rubber layer.

4. The workpiece strength testing device with automatic stopping capability according to claim 3, characterized in that: The adjustment component further includes: A receiving groove (204) is formed on the slide bar (202), and the lower end of the pressure plate (205) is slidably connected in the receiving groove (204); The pressure spring (206) is fixedly arranged at the middle of the pressure plate (205) at its upper end and fixedly arranged at the upper end of the slide rod (202) at its lower end; Nut (207), located at the upper end of pressure plate (205), is used to adjust the pressure threshold; A tension gauge (208) is set on the vertical plate of the main support (1), and the hook at the lower end of the tension gauge (208) is connected to the pull ring at the upper end of the pressure plate (205).

5. The workpiece strength testing device with automatic stopping capability according to claim 4, characterized in that: The upper end of the pressure plate (205) is provided with a threaded structure, and the nut (207) is threadedly connected to the threaded structure of the pressure plate (205).

6. The workpiece strength testing device with automatic stopping capability according to claim 5, characterized in that: The pressurization structure also includes: The pressure relief pipe (302) is installed through the pressure pipe (301) and is connected to the pressure pipe (301); A receiving pipe (309) is installed on the pressure relief pipe (302) and is connected to the pressure relief pipe (302); The converter (303) is slidably connected inside the receiving tube (309) and is used to control the direction of hydraulic oil.

7. The workpiece strength testing device with automatic stopping capability according to claim 6, characterized in that: The converter head (303) is provided with a through hole.

8. The workpiece strength testing device with automatic stopping capability according to claim 7, characterized in that: The stop feedback component also includes: The connecting rod (304) has one end slidably connected to the receiving tube (309) and the other end slidably connected to the vertical plate at the upper end of the outer shell (203), and one end of the connecting rod (304) is fixedly arranged on the adapter (303); The return spring (305) has one end fixedly arranged on one side of the converter head (303) and the other end fixedly arranged on the receiving tube (309); A hydraulic oil tank (307) is installed on the main support (1) and is used to store hydraulic oil; The hydraulic oil pump (308) has its inlet end fixedly connected to the bottom of the hydraulic oil tank (307) and its outlet end fixedly connected to the pressure pipe (301). It is used to transport the hydraulic oil in the hydraulic oil tank (307) to the outer shell (203) through the pressure pipe (301).

9. The workpiece strength testing device with automatic stopping capability according to claim 8, characterized in that: The wedge plate (306) is fixedly arranged at the other end of the connecting rod (304), and the upper end of the wedge plate (306) is set with an inclined surface.

10. The workpiece strength testing device with automatic stopping capability according to claim 9, characterized in that: The fixing component also includes: The support plate (402) is fixedly arranged on the support frame (401) and is used to fix the workpiece; The fixing plate (403) is slidably connected in the T-shaped groove opened on the support frame (401) and is used to fix the workpiece in conjunction with the support plate (402); The fixing bolt (404) is threaded through and connected to the support plate (402) to fix the fixing plate (403). Adjusting bolt (405), threadedly connected to one side of support frame (401), is used to limit the adjustment of support frame (401); Threaded holes (406) are provided on both sides of the main bracket (1), and adjusting bolts (405) are threaded onto the threaded holes (406).

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