Precision hardware product strength detection device

Abstract

The utility model relates to the technical field of hardware product strength detection, in particular to a precision hardware product strength detection device which comprises a detection machine body, a hydraulic rod and a detection base, the detection machine body is fixed on the detection base, a movable opening is arranged at the bottom of the detection machine body, the hydraulic rod is fixed at the top of the detection machine body, and an output end of the hydraulic rod extends into the movable opening. Detection sliding grooves are formed in the two sides in the movable opening, detection racks are slidably connected into the detection sliding grooves, detection contacts are fixed to the bottoms of the two detection racks, a detection tooth column is engaged between the two detection racks, a U-shaped connecting piece is arranged on the detection tooth column, the detection tooth column is rotationally connected to the opening of the connecting piece, and the output end of the hydraulic rod is fixed to the connecting piece. According to the utility model, through the hydraulic rod, the detection tooth column and the two detection racks, a convex detection surface and a concave detection surface of a special-shaped workpiece in a hardware product can be detected at the same time, the detection precision is increased, and the problem that the detection precision is influenced because only the convex detection surface can be detected in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of strength detection of hardware products, in particular to a precision hardware product strength detection device. Background Art

[0002] Hardware products are widely used in construction, machinery, electronics, automobile and other industries. For example, common hardware products such as screws, nuts, hinges, door locks, handles, and knobs require repeated disassembly and assembly when testing existing hardware products. In addition, the pressure plates for general testing are designed to be horizontal and cannot be applied to products of different shapes, which has limitations.

[0003] Based on the above problems, the existing patent with publication number CN214622021U discloses a precision hardware product strength testing device. Through the arrangement of side panels, connecting plates, fixed seats, telescopic rods, connecting rods and sliding plates, when testing products, the products can be directly placed on the base. When the pressure plate approaches the product, the connecting rod is used to push the sliding plate to clamp the workpiece, thereby improving work efficiency.

[0004] However, when implementing the above-mentioned precision hardware product strength detection device, it was found that it still had at least the following problems. In hardware products, there are generally some special-shaped workpieces, such as L-shaped, concave or convex, and these special-shaped workpieces are generally in high demand and are often used as connectors or fixings. Then, in the process of detecting such special-shaped workpieces, it was found that these special-shaped workpieces usually have uneven detection surfaces and generally have 2-3 detection surfaces. This also results in the detection surfaces that can contact the pressure plate are generally convex detection surfaces, and other concave detection surfaces are difficult for the pressure plate to detect. This results in low accuracy when detecting special-shaped workpieces, and even the need to change other detection devices for detection. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a precision hardware product strength detection device, which can simultaneously detect the convex detection surface and the concave detection surface of the special-shaped workpiece, so as to solve the problem in the prior art that the special-shaped workpiece has a convex detection surface and a concave detection surface, and only the convex detection surface can be detected, thereby affecting the detection accuracy.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model provides a precision hardware product strength detection device, including: a detection body, a hydraulic rod and a detection base, the detection body is fixed on the detection base, a movable opening is provided at the bottom of the detection body, the hydraulic rod is fixed at the top of the detection body, and its output end extends into the movable opening, detection slide grooves are provided on both sides of the movable opening, and detection racks are slidably connected in the detection slide grooves. Detection contacts are fixed at the bottom of the two detection racks, a detection tooth column is meshed between the two detection racks, a U-shaped connecting piece is provided on the detection tooth column, the detection tooth column is rotatably connected to the opening of the connecting piece, and the output end of the hydraulic rod is fixed to the connecting piece.

[0009] Furthermore, a reset top block is provided on one side of the two detection racks facing the detection slide slot, and the reset top block is slidably connected to the detection slide slot.

[0010] Furthermore, a mounting plate and a support plate are provided on one side of the two detection racks toward the detection slot. The mounting plate is fixed at the bottom of the detection rack, and the support plate fixes the mounting plate and the detection rack. Both the mounting plate and the support plate can slide in the detection slot, and the detection contact is fixed at the bottom of the mounting plate.

[0011] Furthermore, the detection rack is located in the middle between the two detection racks in a normal state.

[0012] Furthermore, it also includes a protective plate, which is fixed on the detection body and on which a protective glass is fixed.

[0013] Furthermore, it also includes a fixed clamping group, which includes a clamping block, a threaded rod and a rotating wheel. A clamping groove is provided on the detection base. The threaded rod is rotatably connected in the clamping groove and one end partially protrudes from the detection base. One end of the threaded rod protruding from the detection base is fixed to the rotating wheel, and the clamping block is partially slidably connected in the clamping groove and is threadedly connected to the threaded rod.

[0014] Furthermore, a side of the detection base facing the clamping block and a side of the clamping block facing the detection base are both provided with anti-slip pads.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a precision hardware product strength detection device, which has the following beneficial effects:

[0017] 1. The utility model can simultaneously detect the convex detection surface and the concave detection surface of the special-shaped workpiece in the hardware product through the hydraulic rod, the detection tooth column and the two detection racks, thereby increasing the detection accuracy and solving the problem in the prior art that the special-shaped workpiece has a convex detection surface and a concave detection surface, but only the convex detection surface can be detected, thereby affecting the detection accuracy;

[0018] 2. The utility model increases the contact surface between the two detection racks and the detection body by resetting the top block, thereby reducing the depression caused by the force, and reduces the wear of the detection rack when sliding in the detection slide groove by sliding the top block with the detection slide groove;

[0019] 3. The utility model fixes protective glass on the protective plate, which can prevent the hardware products from splashing after breaking and causing damage to human eyes during the inspection of hardware products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 Shows Figure 1 A front view structural diagram of

[0022] Figure 3 A schematic diagram of the internal structure of the detection body is shown;

[0023] Figure 4 A schematic diagram of the cross-section structure of the detection base is shown.

[0024] In the figure: 1. Detection body; 2. Hydraulic rod; 3. Detection base; 4. Movable opening; 5. Detection slide; 6. Detection rack; 7. Detection contact; 8. Detection gear column; 9. Connector; 10. Reset top block; 11. Mounting plate; 12. Support plate; 13. Protective plate; 14. Protective glass; 15. Clamping block; 16. Threaded rod; 17. Rotating wheel; 18. Clamping slide; 19. Anti-slip pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: See Figures 1 to 4According to an embodiment of the utility model, a technical solution is provided: a precision hardware product strength detection device, comprising: a detection base 3, the detection base 3 can support the detection body 1, and the hardware product to be detected can be placed at the bottom of the detection base 3, the detection body 1 is used to connect the hydraulic rod 2 and the detection rack 6, the hydraulic rod 2 drives the detection tooth column 8 to move up and down by driving the connecting piece 9, when the detection contacts 7 at the bottom of the two detection racks 6 are in contact with the hardware product to be detected, the detection tooth column 8 can drive the two detection racks 6 to move downward at the same time, when the detection contact 7 on one of the detection racks 6 is in contact with the hardware product, but the other is not in contact, the hydraulic rod 2 continues to drive the detection tooth column 8 to move downward, because the detection tooth column 8 can rotate with the connecting piece 9, the detection tooth column 8 is in contact with the detection rack of the hardware product. 6 rolls, and the detection tooth column 8 drives the detection rack 6 that is not in conflict with each other to move downward, until the detection contact 7 on the detection rack 6 that is not in conflict with each other conflicts with the hardware product. At this time, since the two detection racks 6 cannot move, during the subsequent hydraulic process of the hydraulic rod 2, the detection tooth column 8 drives the two detection racks 6 to press down at the same time to detect the special-shaped hardware products. After the hydraulic rod 2 is retracted, at least one of the two detection racks 6 with inconsistent heights will first conflict with the detection body 1, and the other can be reset by the detection tooth column 8. It should be noted that the detection tooth column 8 and the rack on the detection rack 6 will not break due to strength testing in a short time. Taking copper as an example for metal testing, it is known that the maximum allowable tensile and compressive fatigue limit of copper is 96.4kg / c㎡<160kg / c㎡, and the detection does not damage or deform the hardware products.

[0027] The precision hardware product strength detection device adopting the above structure can simultaneously detect the convex detection surface and the concave detection surface of the special-shaped workpiece in the hardware product through the hydraulic rod 2, the detection tooth column 8 and the two detection racks 6, thereby increasing the detection accuracy and solving the problem in the prior art that because the special-shaped workpiece has a convex detection surface and a concave detection surface, only the convex detection surface can be detected, thereby affecting the detection accuracy.

[0028] In this embodiment, during multiple detection processes, since the two detection racks 6 need to be against the detection body 1 multiple times, the detection body 1 and / or the two detection racks 6 are likely to be concave, thereby affecting the flatness of the two detection racks 6 when they are reset. Therefore, a reset top block 10 is provided on the side of the two detection racks 6 facing the detection slide groove 5. The reset top block 10 increases the contact surface between the two detection racks 6 and the detection body 1, thereby reducing the depression caused by the force. The reset top block 10 is slidably connected to the detection slide groove 5 to reduce the wear of the detection rack 6 when sliding in the detection slide groove 5.

[0029] In this embodiment, in order to prevent the two detection racks 6 from bending or deforming when detecting hardware products, a mounting plate 11 and a support plate 12 are provided on the side of the two detection racks 6 facing the detection slot 5. The mounting plate 11 is fixed to the bottom of the detection rack 6, and the support plate 12 fixes the mounting plate 11 and the detection rack 6. Through the cooperation between the support plate 12 and the mounting plate 11, the compressive resistance of the two detection racks 6 is increased to prevent them from deformation. The mounting plate 11 and the support plate 12 can both slide in the detection slot 5, and the detection contact 7 is fixed to the bottom of the mounting plate 11.

[0030] In this embodiment, in order to ensure that during the detection process, one of the detection racks 6 cannot collide with the recessed detection surface of the special-shaped workpiece in the hardware product, the detection rack 6 needs to be located in the middle between the two detection racks 6 under normal conditions, so that the two detection racks 6 have a certain moving distance.

[0031] In this embodiment, the protective plate 13 is fixed on the detection body 1, and a protective glass 14 is fixed on the protective plate 13. During the detection of hardware products, the hardware products need to be under pressure. When detecting some small or easily broken hardware products, it is inevitable that the hardware products will break. Since hardware detection requires manual operation, in order to avoid splashing after the hardware products break and causing damage to human eyes, humans can observe through the protective glass 14 on the protective plate 13 to prevent injuries.

[0032] In this embodiment, in order to facilitate the fixation of hardware products, a fixed clamping group is provided on the detection base 3, and the fixed clamping group includes a clamping block 15, a threaded rod 16 and a rotating wheel 17. A clamping groove 18 is provided on the detection base 3, so that the clamping block 15 slides in the clamping groove 18, and is threadedly connected to the clamping block 15 through the threaded rod 16, so that the threaded rod 16 drives the clamping block 15 to move when it rotates, and the end of the threaded rod 16 protruding from the detection base 3 is fixed to the rotating wheel 17, and the threaded rod 16 is driven to rotate by rotating the rotating wheel 17.

[0033] In this embodiment, in order to prevent the hardware product from sliding left and right after clamping and to increase the friction between the detection base 3 and the clamping block 15 on the hardware product, anti-slip pads 19 are provided on the side of the detection base 3 facing the clamping block 15 and the side of the clamping block 15 facing the detection base 3.

[0034] Working principle: When it is necessary to test the hardware products, the hardware products can be placed on the testing base 3, and then the rotating wheel 17 is rotated, so that the rotating wheel 17 drives the threaded rod 16 to rotate and drive the clamping block 15 to clamp the hardware products. After the clamping is stable, the hydraulic rod 2 drives the connecting piece 9 to press down, driving the detection tooth column 8 to move downward, thereby driving the detection contacts 7 at the bottom of the two detection racks 6 to detect the hardware products;

[0035] When a special-shaped hardware product appears, the detection contact 7 on one of the detection racks 6 will first come into contact with the hardware product, while the other one will not. The hydraulic rod 2 will continue to drive the detection tooth column 8 to move downward. Since the detection tooth column 8 can rotate with the connecting piece 9, the detection tooth column 8 rolls on the detection rack 6 that comes into contact with the hardware product, and the detection tooth column 8 thereby drives the detection rack 6 that does not come into contact with the hardware product to move downward until the detection contact 7 on the detection rack 6 that does not come into contact with the hardware product comes into contact with the hardware product. At this time, since both detection racks 6 cannot move, in the subsequent hydraulic process of the hydraulic rod 2, the detection tooth column 8 drives the two detection racks 6 to press down at the same time to detect the special-shaped hardware product. During resetting, since at least one of the two detection racks 6 with inconsistent heights comes into contact with the detection body 1 first, the other one can be reset by the detection tooth column 8.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision hardware product strength testing device, characterized in that: include: A detection body (1), a hydraulic rod (2) and a detection base (3), wherein the detection body (1) is fixed on the detection base (3), a movable opening (4) is provided at the bottom of the detection body (1), the hydraulic rod (2) is fixed at the top of the detection body (1), and its output end extends into the movable opening (4), detection slide grooves (5) are provided on both sides of the movable opening (4), detection racks (6) are slidably connected in the detection slide grooves (5), detection contacts (7) are fixed at the bottom of the two detection racks (6), a detection tooth column (8) is meshed between the two detection racks (6), a U-shaped connecting piece (9) is provided on the detection tooth column (8), the detection tooth column (8) is rotatably connected to the opening of the connecting piece (9), and the output end of the hydraulic rod (2) is fixed to the connecting piece (9).

2. A precision hardware product strength detection device according to claim 1, characterized in that: A reset top block (10) is provided on one side of the two detection racks (6) facing the detection slide groove (5), and the reset top block (10) is slidably connected to the detection slide groove (5).

3. A precision hardware product strength detection device according to claim 2, characterized in that: A mounting plate (11) and a support plate (12) are provided on one side of the two detection racks (6) facing the detection chute (5); the mounting plate (11) is fixed to the bottom of the detection rack (6); the support plate (12) fixes the mounting plate (11) and the detection rack (6); both the mounting plate (11) and the support plate (12) can slide in the detection chute (5); and the detection contact (7) is fixed to the bottom of the mounting plate (11).

4. A precision hardware product strength detection device according to claim 3, characterized in that: The detection rack (6) is located in the middle between the two detection racks (6) in a normal state.

5. A precision hardware product strength detection device according to claim 1, characterized in that: It also comprises a protection plate (13), wherein the protection plate (13) is fixed on the detection body (1), and a protection glass (14) is fixed on the protection plate (13).

6. A precision hardware product strength detection device according to claim 1, characterized in that: It also includes a fixed clamping group, which includes a clamping block (15), a threaded rod (16) and a rotating wheel (17); a clamping groove (18) is provided on the detection base (3); the threaded rod (16) is rotatably connected in the clamping groove (18) and one end of the threaded rod (16) partially protrudes from the detection base (3); the end of the threaded rod (16) protruding from the detection base (3) is fixed to the rotating wheel (17); the clamping block (15) is partially slidably connected in the clamping groove (18) and is threadedly connected to the threaded rod (16).

7. A precision hardware product strength detection device according to claim 6, characterized in that: A side of the detection base (3) facing the clamping block (15) and a side of the clamping block (15) facing the detection base (3) are both provided with anti-slip pads (19).

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