Adjustable vibration impact test fixing device

Abstract

The utility model discloses an adjustable vibration impact test fixing device which comprises a base, the whole base is of a cross-shaped structure, first limiting rods with the adjustable distance are symmetrically arranged at the two ends of the top of each first limiting rod, and second limiting rods with the adjustable distance are symmetrically arranged at the two ends, perpendicular to the first limiting rods, of the top of the base. The top ends of the first limiting rod and the second limiting rod are connected with limiting plates, the limiting plates are slidably arranged on the outer sides of the first limiting rod and the second limiting rod, the two adjacent ends of the base are fixedly connected with vertical plates with length scales, and the ends of the limiting plates are slidably connected to the surfaces of the vertical plates. According to the fixing device, the distance between the limiting rods at the two corresponding ends of the base can be adjusted, and the limiting rods at the two corresponding ends are always in symmetrical positions, so that the external stable positioning of the to-be-tested part can be ensured, the to-be-tested part is positioned at the central position of the base, the subsequent accurate testing of the tested part of the part is facilitated, and the testing efficiency is improved. And the accuracy of vibration impact is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibration impact test, concretely to adjustable vibration impact test fixing device. BACKGROUND

[0002] Vibration and impact test has been widely applied to the production test link of various automobile parts. By using vibration and impact test to simulate the vibration conditions of automobile parts from road surface, engine, motor and the like in the automobile driving process, the fatigue life of automobile parts can be determined, and basis for evaluating the service life and driving mileage of the whole vehicle is provided.

[0003] When carrying out vibration and impact test, a fixing device needs to be used. Because of the diversity of product structure, a special mold needs to be made as a fixing device. However, the special fixing device has single applicability and can only be used for single mold, and the manufacturing cost is high.

[0004] According to the adjustable vibration impact test fixing device disclosed in patent No. CN 220893739 U, four slidable and adjustable limiting columns are arranged on the base, and a liftable and adjustable cover plate is arranged outside the four limiting columns to fix the parts to be tested. However, when fixing the parts to be tested, the positions of the four limiting columns in the four directions outside the parts need to be adjusted respectively. After adjustment, the position of the upper cover plate also needs to be adjusted and fixed. The operation process is relatively complicated, and after the parts to be tested are fixed, the deviation of the adjustment positions of the four limiting columns may cause the parts to be tested not to be located at the center position of the base, thereby affecting the accuracy of the test when the vibration and impact test is actually carried out. Therefore, we propose an adjustable vibration impact test fixing device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an adjustable vibration impact test fixing device to solve the problems in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an adjustable vibration impact test fixing device, comprising a base, the whole of the base is in a cross-shaped structure, and the top of the first limiting rod is symmetrically provided with a distance-adjustable first limiting rod at both ends, the top of the first limiting rod is symmetrically provided with a distance-adjustable second limiting rod at both ends, the top of the first limiting rod and the second limiting rod is connected with a limiting plate, and the limiting plate is slidably arranged outside the first limiting rod and the second limiting rod, the adjacent two ends of the base are fixedly connected with a stand plate with length scale, and the end of the limiting plate is slidably connected to the surface of the stand plate.

[0007] Preferably, horizontal mounting grooves are formed in the base, and a first bidirectional screw rod is rotatably connected in the mounting grooves, two ends of the first bidirectional screw rod are symmetrically connected with sliding seats, the sliding seats are slidably connected in the mounting grooves, two first limiting rods are fixedly connected at the top of the two sliding seats, a groove is formed in the vertical direction of the top of the base, a second bidirectional screw rod is rotatably connected in the groove through a bearing, two ends of the second bidirectional screw rod are symmetrically connected with moving seats, the moving seats are slidably connected in the groove, and two second limiting rods are fixedly connected at the top of the two moving seats.

[0008] Preferably, the end of the first bidirectional screw rod and the end of the second bidirectional screw rod are fixedly connected with a worm wheel through the base, the end of the worm wheel is fixedly connected with a rotating handle through the mounting plate, and the mounting plate is symmetrically fixed to the base outside the worm wheel.

[0009] Preferably, the limiting plate is in a cross-shaped structure, the limiting plate is located directly above the base, four adjusting grooves are equidistantly formed at the top of the limiting plate, adjusting seats are slidably connected in the adjusting grooves, the end of the first limiting rod and the end of the second limiting rod are slidably connected through the corresponding adjusting seat, and the end of the first limiting rod and the end of the second limiting rod are threadedly connected with nuts outside one end of the top of the adjusting seat.

[0010] Preferably, the side wall of the limiting plate is provided with a sliding groove, and the corresponding two side walls of the limiting plate are provided with a tightening bolt, the threaded rod of the tightening bolt is slidably connected in the sliding groove, and the corresponding two side walls of the adjusting seat are provided with a threaded hole, and the end of the tightening bolt is threadedly connected in the threaded hole of the adjusting seat.

[0011] Preferably, the surface of the vertical plate is provided with a lifting groove, the end of the limiting plate is provided with a fastening knob in the lifting groove, the threaded rod of the fastening knob is slidably connected in the lifting groove, and the end of the limiting plate is provided with a fixing hole, and the end of the fastening knob is threadedly connected in the fixing hole.

[0012] Preferably, the threaded rod of the fastening knob and the threaded rod of the tightening bolt are provided with a gasket, and the gaskets on the fastening knob and the tightening bolt are respectively in contact with the limiting plate and the surface of the vertical plate.

[0013] Preferably, the top center of the base and the four corners of the top of the base are provided with counterbores.

[0014] Compared with the prior art, the base has the advantages that:

[0015] 1. The utility model discloses a symmetrical position of the limiting of corresponding two ends can be guaranteed to the outside stable fixed position of the component to be tested, thereby make the component to be tested be located the position of the center of base, the accurate test of the component test site of subsequent is facilitated, and the accuracy of vibration impact is guaranteed.

[0016] 2. The utility model discloses a symmetrical position of the limiting of corresponding two ends can be guaranteed to the outside stable fixed position of the component to be tested, thereby make the component to be tested be located the position of the center of base, the accurate test of the component test site of subsequent is facilitated, and the accuracy of vibration impact is guaranteed. DRAWINGS

[0017] Figure 1 It is the whole picture structure schematic view of the utility model;

[0018] Figure 2 It is the whole picture structure schematic view of the utility model.

[0019] Figure 3 It is the whole picture structure schematic view of the utility model.

[0020] In the drawing: 1, base, 2, first limiting rod, 3, second limiting rod, 4, limiting plate, 5, riser, 6, fastening knob, 8, mounting groove, 9, first bidirectional screw rod, 11, sliding seat, 12, recess, 13, second bidirectional screw rod, 14, moving seat, 15, worm wheel, 16, mounting plate, 17, worm, 18, rotating handle, 19, adjusting groove, 20, adjusting seat, 21, sliding groove, 22, screw bolt. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figure 1 The utility model provides a kind of technical scheme: a kind of adjustable vibration impact test fixing device, including base 1, the whole of base 1 is cross-shaped structure, and the top two ends of first limiting rod 2 are symmetrically provided with distance adjustable first limiting rod 2, the top of base 1 is located the two ends of first limiting rod 2 vertical and symmetrically provided with distance adjustable second limiting rod 3;

[0023] The top ends of the first limiting rods 2 and the second limiting rods 3 are connected with a limiting plate 4, and the limiting plate 4 is slidably arranged outside the first limiting rods 2 and the second limiting rods 3; the adjacent two ends of the base 1 are fixedly connected with vertical plates 5 with length scales; and the end of the limiting plate 4 is slidably connected to the surface of the vertical plate 5.

[0024] Please refer to Figure 2 The base 1 is provided with a horizontal mounting groove 8, and the first bidirectional screw rod 9 is rotatably arranged in the mounting groove 8; the two ends of the first bidirectional screw rod 9 are symmetrically and threadedly connected with slide blocks 11, and the slide blocks 11 are slidably arranged in the mounting groove 8; the two first limiting rods 2 are fixedly arranged on the top of the two slide blocks 11; the base 1 is provided with a vertical recess 12 on the top of the mounting groove 8, and the second bidirectional screw rod 13 is rotatably arranged in the recess 12 through a bearing; the two ends of the second bidirectional screw rod 13 are symmetrically and threadedly connected with moving blocks 14, and the moving blocks 14 are slidably arranged in the recess 12; and the two second limiting rods 3 are fixedly arranged on the top of the two moving blocks 14.

[0025] It should be noted that, when the base 1 is fixedly arranged on the supporting surface through the countersunk head bolts, the test component is arranged on the top center of the base 1, the rotating handle 18 at one end of the base 1 is rotated, the worm 17 connected with the rotating handle 18 is rotated, the second bidirectional screw rod 13 is rotated through the meshing connection between the worm 17 and the worm gear 15, the distance between the two second limiting rods 3 on the two moving blocks 14 can be adjusted through the thread connection between the two moving blocks 14 and the two ends of the second bidirectional screw rod 13, the two second limiting rods 3 are tightly arranged on the two symmetrical sides of the test component, the rotating handle 18 at the adjacent end of the base 1 is rotated, the distance between the two first limiting rods 2 is adjusted, the two first limiting rods 2 are tightly arranged on the other two symmetrical sides of the test component, the periphery of the test component is stably fixed, then the fastening knobs 7 on the vertical plates 5 and the tightening bolts 22 are loosened, the limiting plate 4 is slid downward and tightly arranged on the top of the test component, then the fastening knobs 7 are tightened, and the corresponding tightening bolts 22 are tightened, so that the test component is stably fixed.

[0026] Please refer to Figure 1 The end of the first bidirectional screw rod 9 and the end of the second bidirectional screw rod 13 are fixedly connected with the worm gear 15 through the base 1, the base 1 is fixedly arranged on the outside of the worm gear 15 at the end, the two mounting plates 16 are rotatably arranged between the two mounting plates 16, the worm 17 is meshingly connected with the worm gear 15, the rotating handle 18 is rotatably arranged on the side wall of the mounting plate 16, and the end of the worm 17 is fixedly connected with the rotating handle 18 through the mounting plate 16.

[0027] It needs to be explained that when the component to be tested needs to be installed, the base 1 is fixedly installed on the supporting surface through the countersunk head bolt, the component to be tested is placed at the top center position of the base 1, the rotating handle 18 at one end of the base 1 is loosened, the rotating handle 18 is rotated, the worm 17 connected with the rotating handle 18 is rotated, the second bidirectional screw rod 13 is rotated through the meshing connection of the worm 17 and the worm gear 15, the distance between the second limiting rods 3 on the two moving seats 14 can be adjusted through the threaded connection of the two moving seats 14 and the two ends of the second bidirectional screw rod 13, the two second limiting rods 3 are respectively tightly clamped at the symmetrical two side positions of the component to be tested, and the rotating handle 18 at the adjacent end of the base 1 is rotated, the distance between the two first limiting rods 2 is adjusted, and the two first limiting rods 2 are tightly clamped at the other symmetrical two side positions of the component to be tested, so that the component to be tested is stably fixed.

[0028] Please refer to Figure 3 The overall shape of the limiting plate 4 is a cross structure, the limiting plate 4 is located directly above the base 1, four adjusting grooves 19 are equidistantly formed in the top of the limiting plate 4, adjusting seats 20 are slidably connected in the adjusting grooves 19, the ends of the first limiting rods 2 and the second limiting rods 3 respectively slide through the adjusting seats 20 corresponding to the first limiting rods 2 and the second limiting rods 3, and nuts are threadedly connected to the outer sides of the ends of the first limiting rods 2 and the second limiting rods 3 located at the top of the adjusting seats 20.

[0029] It needs to be explained that the limiting plate 4 can be pressed down on the top of the component to be tested to stably fix the component.

[0030] Please refer to Figure 3 Sliding grooves 21 are formed in the side walls of the limiting plate 4, and the corresponding two side walls of the limiting plate 4 are provided with the tightened bolts 22, the threaded rod portions of the tightened bolts 22 are slidably connected in the sliding grooves 21, and the corresponding two side walls of the adjusting seat 20 are provided with threaded holes, and the end portions of the tightened bolts 22 are threadedly connected in the threaded holes of the adjusting seat 20.

[0031] It needs to be explained that when the four sides of the component to be tested are stably fixed, the fastening knobs 7 on the two vertical plates 5 and the tightened bolts 22 are loosened, the limiting plate 4 is slid down to be tightly clamped on the top of the component to be tested, then the fastening knobs 7 are tightened, and the corresponding tightened bolts 22 are tightened, so that the component to be tested is stably fixed.

[0032] Please refer to Figure 3 The vertical lifting grooves 6 are formed in the surfaces of the vertical plates 5, the fastening knobs 7 are arranged at the ends of the limiting plate 4 in the lifting grooves 6, the threaded rod portions of the fastening knobs 7 are slidably connected in the lifting grooves 6, the ends of the limiting plate 4 are provided with fixing holes, and the end portions of the fastening knobs 7 are threadedly connected in the fixing holes.

[0033] Need to explain, the setting of the vertical plate 5 can preliminarily fix the position of the limiting plate 4, when installing the component to be tested, the limiting plate 4 is adjusted to the top of the first limiting rod 2 and the second limiting rod 3, and then the fastening knob 7 is tightened, the position of the limiting plate 4 is fixed, and the limiting plate 4 is prevented from being pressed on the component to be tested under the action of gravity when positioning the component to be tested, and the scale line on the vertical plate 5 also facilitates adjusting the height of the limiting plate 4 according to the height size of the component to be tested, so that the stable positioning of the component to be tested is realized.

[0034] Please refer to Figure 3 The fastening knob 7 and the threaded rod outside the tightening bolt 22 are provided with gaskets, and the gaskets on the fastening knob 7 and the tightening bolt 22 are in surface contact with the limiting plate 4 and the vertical plate 5 respectively.

[0035] Need to explain, the setting of the gasket ensures the stable effect of the fastening knob 7 and the tightening bolt 22 after being connected, and prevents the fastening knob 7 and the tightening bolt 22 from being loose due to vibration and impact.

[0036] Please refer to Figure 3 The top center of the base 1 and the four corners of the top of the base 1 are provided with counterbores.

[0037] Need to explain, the setting of the counterbores on the base 1 facilitates fixing the position of the base 1 through the counterbores, so as to ensure the stability of the component to be tested after installation.

[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, structure and operation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms "first", "second", "third", "fourth" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly included at least one feature.

[0040] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0041] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable vibration shock test fixture, comprising: The application relates to a cross-shaped base (1) which is provided with distance-adjustable first limiting rods (2) at the top of two ends of the base (1), distance-adjustable second limiting rods (3) at the top of two ends of the base (1) which are perpendicular to the first limiting rods (2), limiting plates (4) connected to the top ends of the first limiting rods (2) and the second limiting rods (3), and the limiting plates (4) being slidably arranged outside the first limiting rods (2) and the second limiting rods (3), length-scaled vertical plates (5) fixedly connected to the adjacent two ends of the base (1), and the end of the limiting plate (4) being slidably connected to the surface of the vertical plate (5).

2. The adjustable vibration shock test fixture of claim 1, wherein: A horizontal mounting groove (8) is formed in the base (1), a first bidirectional screw rod (9) is rotatably connected in the mounting groove (8), sliding seats (11) are symmetrically and threadedly connected to the two ends of the first bidirectional screw rod (9), the sliding seats (11) are slidably connected in the mounting groove (8), the two first limiting rods (2) are fixedly connected to the top of the two sliding seats (11), a recess (12) is formed in the top of the base (1) which is perpendicular to the mounting groove (8), a second bidirectional screw rod (13) is rotatably connected in the recess (12) through a bearing, moving seats (14) are symmetrically and threadedly connected to the two ends of the second bidirectional screw rod (13), and the moving seats (14) are slidably connected in the recess (12), and the two second limiting rods (3) are fixedly connected to the top of the two moving seats (14).

3. An adjustable vibration shock test fixture as defined in claim 2, wherein: The end of the first bidirectional screw rod (9) and the end of the second bidirectional screw rod (13) are fixedly connected with a worm wheel (15) penetrating through the base (1), the end of the worm wheel (15) is fixedly connected with a rotating handle (18) penetrating through a mounting plate (16) fixedly connected to the base (1) outside the worm wheel (15), and the worm wheel (15) is meshingly connected with a worm (17) rotatably connected between the two mounting plates (16).

4. The adjustable shock and vibration test fixture of claim 1, wherein: The limiting plate (4) is in a cross-shaped structure, the limiting plate (4) is located directly above the base (1), four adjusting grooves (19) are equidistantly formed in the top of the limiting plate (4), adjusting seats (20) are slidably connected in the adjusting grooves (19), the end of the first limiting rod (2) and the end of the second limiting rod (3) are slidably connected through the corresponding adjusting seat (20), and a nut is threadedly connected to the outside of the end of the first limiting rod (2) and the end of the second limiting rod (3) which is located at one end of the top of the adjusting seat (20).

5. An adjustable vibration shock test fixture as defined in claim 4, wherein: Sliding grooves (21) are formed in the side walls of the limiting plate (4), and a screw bolt (22) is arranged on the corresponding two side walls of the limiting plate (4), the threaded rod of the screw bolt (22) is slidably connected in the sliding groove (21), and the end of the screw bolt (22) is threadedly connected in the threaded hole of the adjusting seat (20).

6. The adjustable shock and vibration test fixture of claim 1, wherein: The vertical plate (5) is provided with a lifting groove (6) in the vertical direction on the surface, the end of the limiting plate (4) is provided with a fastening knob (7) in the lifting groove (6), the threaded rod of the fastening knob (7) is slidably connected in the lifting groove (6), the end of the limiting plate (4) is provided with a fixing hole, and the end of the fastening knob (7) is threadedly connected in the fixing hole.

7. An adjustable vibration shock test fixture as defined in claim 6, wherein: The threaded rods outside the fastening knob (7) and the screw bolt (22) are both provided with gaskets, and the gaskets on the fastening knob (7) and the screw bolt (22) are respectively in contact with the surfaces of the limiting plate (4) and the vertical plate (5).

8. The adjustable shock testing fixture of claim 1, wherein: The top center of the base (1) and the top corners of the base (1) are all provided with countersunk holes.

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