Adjustable drop test fixture

Abstract

The utility model discloses an adjustable drop test fixture, which relates to the technical field of fixtures, and comprises a placing base, a mounting rack and a driving motor, the upper side of the placing base is connected with the mounting rack, the top of the mounting rack is provided with the driving motor, the bottom of the driving motor is connected with the top of a first adjusting screw rod through a coupler, and the first adjusting screw rod is provided with a second adjusting screw rod. The outer side of the first adjusting screw rod is in threaded connection with a connecting base, and a clamp body is installed on one side of the connecting base. According to the adjustable drop test fixture, after a metal product falls to the upper side of the test bed, the test bed exerts rebounding force on the metal product, the metal product will make contact with the inclined baffle at the moment, and the force unloading layer arranged on the side, close to the test bed, of the inclined baffle is made of rubber, so that the good buffering and force unloading effects are achieved; the adjustable drop test clamp solves the problems that a metal product bounces after falling to the surface of a simulation material, later collection is inconvenient, and meanwhile an operator is accidentally injured.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an adjustable drop test clamp. Background Art

[0002] The metal product drop test is a test method to evaluate the tolerance and safety of metal products during a drop process. When conducting a drop test, the appropriate drop height, angle and conditions can be set according to the characteristics of the metal product and the use environment to simulate the drop situation that may occur during actual use. The durability and safety of the metal product can be evaluated. The wear resistance of the surface protective layer of the metal product and the protection capability of the internal components can be evaluated, helping manufacturers to improve product design, optimize material selection and processing technology, and improve the durability and safety of metal products.

[0003] According to patent No. 202220792303.1, a drop test fixture includes a protective shell, a lifting mechanism is installed inside the protective shell, a load-bearing column is fixed under the protective shell, a driving plate is slidably connected to the surface of the load-bearing column, a clamping mechanism is installed at one end of the driving plate, and a base is fixed at the bottom of the load-bearing column; when in use, it is raised to a suitable height by the lifting mechanism, and then moved in the opposite direction by the connecting rod device, driving the clamp seat assembly to release the object so that it falls freely onto the simulated material set on the surface of the base; but the test fixture is not provided with an anti-bounce structure, and when the metal product falls to the surface of the simulated material, it will bounce, which is not convenient for later collection and may accidentally injure the operator. Summary of the invention

[0004] The utility model aims to provide an adjustable drop test fixture to solve the problem in the background art that metal products will bounce after falling onto the surface of a simulated material, which is inconvenient for later collection and may accidentally injure the operator.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: an adjustable drop test fixture, including a placement base, a mounting frame and a drive motor,

[0006] A mounting frame is connected to the upper side of the placement base, a driving motor is installed on the top of the mounting frame, the bottom of the driving motor is connected to the top of the first adjusting screw through a coupling, the outer side of the first adjusting screw is threadedly connected to the connecting seat, a fixture body is installed on one side of the connecting seat, and a test bench is arranged on the inner side of the placement base.

[0007] Preferably, an anti-jumping-off mechanism is arranged on the outside of the test bench, and the anti-jumping-off mechanism consists of a plug-in slot, a protective frame, a mounting slot, an inclined baffle and a force unloading layer, and a plug-in slot is opened inside the placement base.

[0008] Preferably, a protective frame is inserted into the plug-in slot, a mounting slot is provided inside the protective frame, an inclined baffle is hinged to the pin shaft through a connecting block inside the mounting slot, a force unloading layer is installed on the side of the inclined baffle close to the test bench, and the force unloading layer is made of rubber.

[0009] Preferably, a follow-up mechanism is provided at the bottom of the mounting frame, and the follow-up mechanism is composed of a second adjusting screw, a driving roller, a transmission roller, a transmission belt, an extension layer and a gas strut. One side of the protective frame is connected to the extension layer, and the protective frame and the extension layer are threadedly connected to the first adjusting screw and the second adjusting screw through threaded holes respectively.

[0010] Preferably, both ends of the second adjusting screw are rotatably connected to the mounting frame and the test bench through bearing seats, and a transmission roller and a driving roller are respectively installed on the top of the second adjusting screw and the first adjusting screw.

[0011] Preferably, a transmission belt is sleeved on the outer side of the transmission roller and the driving roller, a gas strut is provided on one side of the oblique baffle, and both ends of the gas strut are hinged to the protection frame and the oblique baffle through a mounting block and a connecting shaft respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the adjustable drop test fixture, after the metal product falls to the upper side of the test bench, the test bench gives the metal product a rebound force, at which time the metal product will contact the inclined baffle plate, and the force unloading layer arranged on the side of the inclined baffle plate close to the test bench is made of rubber material, which has a good buffering and force unloading effect, and solves the problem that the metal product will bounce after falling onto the surface of the simulated material, which is inconvenient for later collection and may accidentally injure the operator.

[0013] 1. In order to prevent the metal product from bouncing violently after falling from a high place and colliding with the test bench, the adjustable drop test fixture is provided with a protective frame inside the plug-in slot provided inside the placement base, and a mounting slot is provided inside the protective frame and an oblique baffle is installed in the mounting slot. When the metal product falls to the upper side of the test bench, the test bench gives the metal product a rebound force, and the metal product will contact the oblique baffle at this time. The unloading layer provided on the side of the oblique baffle close to the test bench is made of rubber material, which has a good buffering and unloading effect. The adjustable drop test fixture is provided with an anti-jump mechanism, which can effectively prevent the metal product from bouncing and improve the safety of the drop test fixture when in use;

[0014] 2. In order to improve the protective effect of the protective frame on metal products, the protective frame and the extension layer on one side are threadedly connected to the first adjusting screw and the second adjusting screw through a threaded hole. When the driving motor drives the first adjusting screw to rotate through the coupling and acts on the thread of the connecting seat on which the fixture body is installed, the second adjusting screw is driven to rotate through the transmission action between the driving roller, the transmission roller and the transmission belt. When the first adjusting screw and the second adjusting screw rotate, the protective frame is driven to move with the movement of the connecting seat by the threaded action of the threaded hole. At this time, the oblique baffle can be smoothly folded and the angle adjusted under the action of the gas strut. The adjustable drop test fixture is provided with a follow-up mechanism, and the protective frame can move simultaneously with the movement and adjustment of the connecting seat and the fixture body, thereby improving the flexibility of the protective frame when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the drop test fixture of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the drop test fixture of the utility model from top view;

[0017] Figure 3 It is a schematic diagram of the main cross-sectional structure of the protective frame of the utility model.

[0018] In the figure: 1. placing base; 2. mounting frame; 3. driving motor; 301. first adjusting screw; 4. connecting seat; 401. fixture body; 101. test bench; 5. anti-jumping mechanism; 501. plug-in slot; 502. protection frame; 503. mounting slot; 504. oblique baffle; 505. force unloading layer; 6. follow-up mechanism; 601. second adjusting screw; 602. driving roller; 603. transmission roller; 604. transmission belt; 605. extension layer; 606. gas strut. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: an adjustable drop test fixture, comprising a placing base 1, a mounting frame 2 and a driving motor 3,

[0021] The upper side of the placement base 1 is connected to a mounting frame 2, the top of the mounting frame 2 is installed with a driving motor 3, the bottom of the driving motor 3 is connected to the top of the first adjusting screw 301 through a coupling, the outer side of the first adjusting screw 301 is threadedly connected to the connecting seat 4, one side of the connecting seat 4 is installed with a fixture body 401, and the inner side of the placement base 1 is provided with a test bench 101.

[0022] An anti-jumping mechanism 5 is arranged on the outside of the test bench 101, and the anti-jumping mechanism 5 consists of a plug-in slot 501, a protective frame 502, a mounting slot 503, an inclined baffle 504 and a force unloading layer 505. The placing base 1 is provided with a plug-in slot 501, a protective frame 502 is inserted in the plug-in slot 501, a mounting slot 503 is arranged in the protective frame 502, an inclined baffle 504 is hinged to the pin shaft through a connecting block in the mounting slot 503, and a force unloading layer 505 is installed on the side of the inclined baffle 504 close to the test bench 101, and the force unloading layer 505 is made of rubber.

[0023] During specific implementation, in order to prevent the metal product from strongly bouncing after falling from a height and colliding with the test bench 101, a protective frame 502 is arranged inside the plug-in slot 501 opened inside the placement base 1, and an installation slot 503 is opened inside the protective frame 502 and an oblique baffle 504 is installed in the installation slot 503. When the metal product falls to the upper side of the test bench 101, the test bench 101 gives the metal product a rebound force, and the metal product will contact the oblique baffle 504 at this time. The unloading layer 505 arranged on the side of the oblique baffle 504 close to the test bench 101 is made of rubber material, which has good buffering and unloading effects, and can effectively prevent the metal product from jumping out of the test bench 101. At the same time, the unloading layer 505 can provide good protection for the oblique baffle 504. The adjustable drop test fixture is provided with an anti-jump mechanism 5, which can effectively prevent the metal product from bouncing and improve the safety of the drop test fixture when in use.

[0024] See also Figure 1 and Figure 2It can be seen that a follow-up mechanism 6 is provided at the bottom of the mounting frame 2, and the follow-up mechanism 6 is composed of a second adjusting screw 601, a driving roller 602, a transmission roller 603, a transmission belt 604, an extension layer 605 and a gas strut 606. An extension layer 605 is connected to one side of the protective frame 502. The interiors of the protective frame 502 and the extension layer 605 are threadedly connected to the first adjusting screw 301 and the second adjusting screw 601 through threaded holes respectively. The two ends of the second adjusting screw 601 are rotatably connected to the mounting frame 2 and the test bench 101 through bearing seats respectively. The tops of the second adjusting screw 601 and the first adjusting screw 301 are respectively installed with a transmission roller 603 and a driving roller 602. The outer sides of the transmission roller 603 and the driving roller 602 are sleeved with a transmission belt 604. A gas strut 606 is provided on one side of the oblique baffle 504. The two ends of the gas strut 606 are respectively hinged to the protective frame 502 and the oblique baffle 504 through a mounting block and a connecting shaft.

[0025] In specific implementation, in order to improve the protective effect of the protective frame 502 on metal products, the protective frame 502 and the extension layer 605 on one side are threadedly connected with the first adjusting screw 301 and the second adjusting screw 601 through threaded holes. When the driving motor 3 drives the first adjusting screw 301 to rotate through the coupling and acts on the connection seat 4 on which the clamp body 401 is installed, the second adjusting screw 601 is driven to rotate through the transmission action between the driving roller 602, the transmission roller 603 and the transmission belt 604. When the first adjusting screw 301 and the second adjusting screw 601 rotate, the threaded action of the threaded hole drives the protective frame 502 to move with the movement of the connection seat 4. At this time, the oblique baffle 504 can smoothly complete the folding and angle adjustment under the action of the gas strut 606, thereby improving the flexibility of the protective frame 502 when in use;

[0026] The setting of the first adjusting screw 301 and the second adjusting screw 601 can improve the stability of the connecting seat 4 and the protective frame 502 during movement, and enhance the supporting effect of the connecting seat 4 on the fixture body 401. The adjustable drop test fixture is provided with a follow-up mechanism 6, and the protective frame 502 can move simultaneously with the movement and adjustment of the connecting seat 4 and the fixture body 401, thereby improving the flexibility of the protective frame 502 when in use.

[0027] To summarize, when using the adjustable drop test fixture, first place the metal product to be tested on the inside of the fixture body 401 for clamping, start the drive motor 3 to drive the first adjusting screw 301, the drive roller 602, the transmission roller 603, the transmission belt 604 and the second adjusting screw 601 to rotate through the coupling, and after moving the connecting seat 4 and the fixture body 401 to a suitable height, the fixture body 401 can release the clamping of the metal product. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable drop test fixture, comprising a placement base (1), a mounting frame (2) and a drive motor (3), characterized in that: The upper side of the placement base (1) is connected to a mounting frame (2), the top of the mounting frame (2) is equipped with a driving motor (3), the bottom of the driving motor (3) is connected to the top of a first adjusting screw (301) via a coupling, the outer side of the first adjusting screw (301) is threadedly connected to a connecting seat (4), a fixture body (401) is installed on one side of the connecting seat (4), and a test bench (101) is arranged on the inner side of the placement base (1).

2. An adjustable drop test fixture according to claim 1, characterized in that: An anti-jumping mechanism (5) is arranged on the outside of the test bench (101), and the anti-jumping mechanism (5) is composed of a plug-in slot (501), a protection frame (502), a mounting slot (503), an oblique baffle (504), and a force-releasing layer (505). The placement base (1) is provided with a plug-in slot (501) inside.

3. An adjustable drop test fixture according to claim 2, characterized in that: A protection frame (502) is inserted into the insertion slot (501), a mounting slot (503) is provided inside the protection frame (502), an oblique baffle (504) is hinged to a pin shaft via a connecting block inside the mounting slot (503), a force unloading layer (505) is installed on a side of the oblique baffle (504) close to the test bench (101), and the force unloading layer (505) is made of rubber.

4. The adjustable drop test fixture according to claim 3, characterized in that: A follow-up mechanism (6) is arranged at the bottom of the mounting frame (2), and the follow-up mechanism (6) is composed of a second adjusting screw (601), a driving roller (602), a transmission roller (603), a transmission belt (604), an extension layer (605) and a gas strut (606); one side of the protection frame (502) is connected to the extension layer (605), and the protection frame (502) and the extension layer (605) are respectively threadedly connected to the first adjusting screw (301) and the second adjusting screw (601) via threaded holes.

5. The adjustable drop test fixture according to claim 4, characterized in that: The two ends of the second adjusting screw (601) are rotatably connected to the mounting frame (2) and the test bench (101) respectively through bearing seats, and a transmission roller (603) and a driving roller (602) are respectively installed on the top of the second adjusting screw (601) and the first adjusting screw (301).

6. The adjustable drop test fixture according to claim 5, characterized in that: A transmission belt (604) is sleeved on the outside of the transmission roller (603) and the driving roller (602), a gas strut (606) is provided on one side of the oblique baffle (504), and two ends of the gas strut (606) are respectively hinged to the protection frame (502) and the oblique baffle (504) via a mounting block and a connecting shaft.

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