CN213956712U - Adjustable universal fixture for vibration impact modal test of junction box and distribution box - Google Patents
Adjustable universal fixture for vibration impact modal test of junction box and distribution box Download PDFInfo
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- CN213956712U CN213956712U CN202022959136.9U CN202022959136U CN213956712U CN 213956712 U CN213956712 U CN 213956712U CN 202022959136 U CN202022959136 U CN 202022959136U CN 213956712 U CN213956712 U CN 213956712U
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Abstract
The utility model relates to a regulation formula junction box and block terminal vibration impact mode test universal fixturing, including the anchor clamps body, characterized by: the clamp body comprises a chassis, a front support, a rear support, a left support, a right support, a clamp upper connecting surface and a connecting rod, the chassis is fixedly connected with the front support, the rear support, the left support and the right support to form a frame type clamp body, the upper surface of the frame type clamp body forms a clamp upper connecting surface, a plurality of connecting long grooves are respectively arranged on four sides of the clamp upper connecting surface, the connecting long grooves are fixedly connected with the connecting rod through fastening bolts, and the clamp upper connecting surface and the connecting rod form a distance adjustable structure. Has the advantages that: the utility model discloses a connect face on the anchor clamps and constitute apart from adjustable structure with the connecting rod, the junction box/block terminal installation of the different models of cooperation that can be better, different width, different mounting means practices thrift the cost that corresponds design and add clamping apparatus greatly.
Description
Technical Field
The utility model belongs to the technical field of the mode test anchor clamps, especially, relate to an adjustable junction box and block terminal vibration impact mode test universal fixturing.
Background
At present, in the process of running of rail vehicles such as trains, products such as equipment and fasteners installed on the rail vehicles such as trains can cause random vibration excitation along with the acceleration of the whole train due to the friction resistance and the operation of an engine, so that a large amount of equipment and fasteners on the rail vehicles need to be subjected to vibration impact tests to check the structural fatigue strength of the equipment, namely whether the equipment can be subjected to fatigue failure or damage due to the simulated actual use environment.
In order to meet the requirement of a product on vibration impact in a laboratory, a technician usually designs a corresponding clamp to complete a test, fixes a test product on an existing vibration impact test bed through the clamp, and operates the vibration impact test bed to realize the measurement of environment and modal frequency simulating vibration impact. However, in the prior art, the requirement of the vibration impact fixture for clamping the test product is large, and different fixtures need to be correspondingly designed according to the shape, size, strength and the like of different test products, so that when vibration impact and modal test of junction box/distribution box products are performed, fixtures of different sizes and installation modes are often required to be designed, vibration impact and modal test on the junction box/distribution box can be realized, and thus, a large amount of manpower, material resources, financial resources and time are required to be spent, and the vibration test cost is remarkably increased.
Therefore, at present, an urgent need exists to develop a clamp, which can effectively connect and fix a junction box/distribution box, so that the fixing requirements of vibration impact and modal test on the junction box/distribution box are met, precious test time and test cost are saved, and the quality of the vibration impact and modal test is improved.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome not enough among the prior art, provide a regulation formula junction box and block terminal vibration impact mode test universal fixturing, can cooperate the junction box/the block terminal of different models, width and mounting means to be connected fixedly, can simulate the long-time durability test of rail transportation and bear destructively and strike and the mode test under the condition that bears the load.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme, a regulation formula junction box and block terminal vibration impact mode test universal fixturing, including the anchor clamps body, characterized by: the clamp body comprises a chassis, a front support, a rear support, a left support, a right support, a clamp upper connecting surface and a connecting rod, the chassis is fixedly connected with the front support, the rear support, the left support and the right support to form a frame type clamp body, the upper surface of the frame type clamp body forms a clamp upper connecting surface, a plurality of connecting long grooves are respectively arranged on four sides of the clamp upper connecting surface, the connecting long grooves are fixedly connected with the connecting rod through fastening bolts, and the clamp upper connecting surface and the connecting rod form a distance adjustable structure.
The front, back, left and right brackets are square, and 1-2 reinforcing support ribs are respectively and fixedly connected to the front, back, left and right brackets.
The frame type clamp body is formed by fixedly connecting square steel.
The reinforced support rib is made of channel steel materials.
The connecting surface on the clamp is symmetrically arranged relative to the connecting elongated slot on the frame.
The connecting rod is made of channel steel materials.
Has the advantages that: compared with the prior art, the distance adjustable structure is formed by the connecting surface and the connecting rod on the clamp, so that the clamp can be better matched with junction boxes/distribution boxes of different models, different widths and different mounting modes for mounting, and the cost of corresponding design and processing of the clamp is greatly saved; the frame type clamp body is of an integral structure formed by welding square steel, has a reliable structure and a stable installation effect, can simulate a long-time durability test of rail transportation under the condition of bearing load, and can also bear destructive ground impact and modal tests; the connecting rod and the reinforcing support rib are made of channel steel materials, so that the inherent frequency of the clamp is high, the test requirement of a junction box/distribution box is met, and the damage to a product caused by resonance of the product and a tool can be effectively avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a simulated installation diagram of the present invention.
In the figure: 1. the device comprises a chassis, 2-1, 2-2, 2-3 and 2-4 parts, a front support, a rear support, a left support and a right support, 3 parts, a clamp upper connecting surface, 4 parts, connecting rods, 5 parts, connecting elongated slots, 6 parts and reinforcing support ribs.
Detailed Description
The following detailed description of the embodiments according to the present invention with reference to the preferred embodiments is as follows: referring to the attached drawing 1 in detail, the embodiment provides an adjustable universal fixture for vibration impact modal tests of junction boxes and distribution boxes, which comprises a fixture body, wherein the fixture body comprises a chassis 1, a front support, a rear support, a left support 2-1, a right support 2-2, a left support 2-3, a right support 2-4, an upper connecting surface 3 of the fixture and a connecting rod 4, the chassis is fixedly connected with the front support, the rear support, the left support and the right support to form a frame-type fixture body, the upper surface of the frame-type fixture body forms the upper connecting surface of the fixture, four sides of the upper connecting surface of the fixture are respectively provided with a plurality of connecting elongated slots 5, the four sides of the upper connecting surface of the fixture are the upper sides of the front support, the rear support, the left support and the right support, the connecting elongated slots are fixedly connected with the connecting rod through fastening bolts, and the upper connecting surface of the fixture and the connecting rod form a distance adjustable structure. The connecting surface on the clamp is symmetrically arranged relative to the connecting elongated slot on the frame. The number of the connecting long grooves is uniformly distributed according to the length of the upper side of the frame type clamp body.
The preferred scheme of this embodiment is that the front, back, left and right brackets are square, and 1-2 reinforcing support ribs 6 are respectively fixed on the front, back, left and right brackets.
The preferable scheme of this embodiment is that, frame anchor clamps body adopts square steel rigid coupling to form. The reinforced support rib is made of channel steel materials. The connecting rod is made of channel steel materials.
The structure and operation of the present embodiment will be further explained with reference to the accompanying drawings
And reasonably welding the chassis of the clamp, the front bracket, the rear bracket, the left bracket, the right bracket and the upper connecting surface of the clamp to form a main body part of the clamp. The junction box/distribution box is fastened with the connecting rods through screws (not shown), the mounting positions of the two connecting rods are adjusted according to different connecting positions of products, and the connecting rods are connected through the screws.
After the test platform is installed, a long-time durability test for simulating rail transportation can be completed, and test failure of products caused by clamp problems is avoided.
In the frequency detection test, the clamp has very good transmissibility, and the clamp frequency does not influence the frequency detection of the test on the luggage rack.
The structure is very reliable in destructive impact tests and modal tests, and the elastic variable test result of the junction box/distribution box is not influenced by the deformation of the clamp caused by external force factors.
The key technology of the clamp lies in two adjustable connecting rods, and two connecting pieces which are flexibly adjusted are arranged on the basis of the whole clamp. The junction box/distribution box and the connecting piece are installed in the installation process, and then the junction box/distribution box and the connecting piece are integrally installed on the main body fixture after installation. The experimental junction box and the distribution box can be hoisted and hung.
The frame anchor clamps body adopts the square steel welding to be overall structure, makes its structure reliable, the installation effect is stable, can simulate the long-time durability test of rail transportation under the condition of bearing the load, can bear destructively ground impact and static test, also can satisfy the modal test demand.
The connecting rod and the reinforcing support rib are made of channel steel materials, so that the inherent frequency of the clamp is high, the test requirement of a junction box/distribution box is met, and the damage to a product caused by resonance of the product and a tool can be effectively avoided.
The above detailed description of the adjustable connection box and distribution box vibration impact mode test universal fixture with reference to the embodiments is illustrative and not restrictive, and several embodiments can be enumerated according to the limited scope, so that changes and modifications without departing from the general inventive concept shall fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a regulation formula junction box and block terminal vibration impact mode test universal fixturing, includes the anchor clamps body, characterized by: the clamp body comprises a chassis, a front support, a rear support, a left support, a right support, a clamp upper connecting surface and a connecting rod, the chassis is fixedly connected with the front support, the rear support, the left support and the right support to form a frame type clamp body, the upper surface of the frame type clamp body forms a clamp upper connecting surface, a plurality of connecting long grooves are respectively arranged on four sides of the clamp upper connecting surface, the connecting long grooves are fixedly connected with the connecting rod through fastening bolts, and the clamp upper connecting surface and the connecting rod form a distance adjustable structure.
2. The adjustable utility box and distribution box vibration impact modal test universal fixture of claim 1, wherein: the front, back, left and right brackets are square, and 1-2 reinforcing support ribs are respectively and fixedly connected to the front, back, left and right brackets.
3. The adjustable utility box and distribution box vibration impact modal test universal fixture of claim 1, wherein: the frame type clamp body is formed by fixedly connecting square steel.
4. The adjustable utility box and distribution box vibration impact modal test universal fixture of claim 2, wherein: the reinforced support rib is made of channel steel materials.
5. The adjustable utility box and distribution box vibration impact modal test universal fixture of claim 1, wherein: the connecting surface on the clamp is symmetrically arranged relative to the connecting elongated slot on the frame.
6. The adjustable utility box and distribution box vibration impact modal test universal fixture of claim 1, wherein: the connecting rod is made of channel steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022959136.9U CN213956712U (en) | 2020-12-11 | 2020-12-11 | Adjustable universal fixture for vibration impact modal test of junction box and distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022959136.9U CN213956712U (en) | 2020-12-11 | 2020-12-11 | Adjustable universal fixture for vibration impact modal test of junction box and distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213956712U true CN213956712U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022959136.9U Active CN213956712U (en) | 2020-12-11 | 2020-12-11 | Adjustable universal fixture for vibration impact modal test of junction box and distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213956712U (en) |
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2020
- 2020-12-11 CN CN202022959136.9U patent/CN213956712U/en active Active
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