Fixing jig

Abstract

The utility model provides a fixing jig, the fixing jig includes base, cantilever and fixing mechanism, the base is used for bearing the product to be tested, and the base is internally provided with the circuit to facilitate the electrical connection with the product to be tested, the cantilever is fixed on the base, and the fixing mechanism is fixed on the cantilever. The fixing mechanism is arranged on the cantilever, so that the fixing mechanism is suspended above the base; the fixing mechanism comprises a driving rod, a telescopic rod and a linkage rod, the linkage rod is hinged to the cantilever and the driving rod, the driving rod is further hinged to the telescopic rod, and the telescopic rod is arranged on the cantilever in a penetrating mode and can move in the axial direction of the telescopic rod. The driving rod is driven to drive the linkage rod to rotate relative to the cantilever so as to enable the telescopic rod to move, and the telescopic rod can abut against the to-be-tested product. When a tester drives the driving rod, most stress points are on the cantilever, so that the tester can apply force conveniently.

Description

Technical Field

[0001] The utility model relates to the field of fixture fixing, in particular to a fixing fixture. Background Art

[0002] In the prior art, some electronic products need to be tested to determine whether they are qualified. High voltage and large current are usually involved in the process of testing electronic products. The testing of electromagnetic products usually requires maintaining stable electrical connection, so some structures are needed to fix the electronic products to be tested. Currently, it is common to use buckles or press the electronic products to keep the circuit connection stable during testing. The electronic product to be tested first needs to complete electrical connection, and generally, it is pin contact. In order to maintain the stability of the pin connection, the pins usually have elasticity, so it takes a lot of effort to press the electronic product to be tested into the test position. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a fixing fixture to achieve the purpose of enabling testers to more easily press the product to be tested into the position to be tested.

[0004] To this end, in one embodiment, a fixing fixture is provided, including a base, a cantilever and a fixing mechanism. The base is used to carry the product to be tested, and a circuit is built in the base for easy electrical connection with the product to be tested. The cantilever is fixed on the base, and the fixing mechanism is arranged on the cantilever so that the fixing mechanism is suspended above the base.

[0005] The fixing mechanism includes a driving rod, a telescopic rod and a linkage rod. The linkage rod is respectively hinged to the cantilever and the driving rod. The driving rod is also hinged to the telescopic rod. The telescopic rod passes through the cantilever and can move along the axial direction of the telescopic rod. Driving the driving rod can drive the linkage rod to rotate relative to the cantilever, and then move the telescopic rod. The telescopic rod can abut against the product to be tested.

[0006] As a further optional solution of the fixing fixture, the fixing mechanism further includes a pressing plate, and the pressing plate is fixed to the end of the telescopic rod away from the driving rod.

[0007] As a further optional solution of the fixing fixture, the fixing mechanism is further provided with a buffer pad, and the buffer pad is fixed under the pressing plate and is made of a flexible material.

[0008] As a further optional solution of the fixing fixture, the pressing plate is provided with a guide groove, and a guide rod is arranged on the cantilever and / or the base. The guide rod passes through the guide groove to guide the pressing plate to move along the length direction of the telescopic rod.

[0009] As a further alternative embodiment of the fixing fixture, the fixing mechanism further includes a base, a locking buckle is further provided on the pressing plate, a limiting portion corresponding to the locking buckle is provided on the base, and the locking buckle can be snapped into the limiting portion to relatively fix the pressing plate and the base, and a part of the bottom of the product to be tested is always supported by the base.

[0010] As a further alternative embodiment of the fixing fixture, the locking buckle is rotatably connected to the pressing plate, and rotating the locking buckle can cause the locking buckle to latch onto the limiting portion.

[0011] As a further alternative embodiment of the fixing fixture, a pin is further provided on the pressing plate, pin holes are provided on both the pressing plate and the locking buckle, and the pin is inserted into the pin holes on both the pressing plate and the locking buckle at the same time to rotatably connect the locking buckle to the pressing plate.

[0012] As a further alternative embodiment of the fixing fixture, a guiding member is further provided on the base, the guiding member has an inclined surface, and the inclined surface is used to slide with the locking buckle to drive the locking buckle to tightly engage with the limiting portion.

[0013] As a further alternative embodiment of the fixing fixture, a guiding column is provided on the base, and the guiding column is adapted to the product to be tested so that the product to be tested can be positioned during installation.

[0014] As a further alternative embodiment of the fixing fixture, the telescopic rod includes a first section and a second section, the first section is inserted into the second section, and there is a sealed gas between the first section and the second section.

[0015] Implementing the embodiments of the present invention will have the following beneficial effects:

[0016] According to the fixing fixture in the above embodiments, the tester only needs to rotate the driving rod, so that the driving rod drives the linkage rod to rotate around the hinge point with the cantilever, so that the driving rod can drive the telescopic rod to move up and down on the base. During the downward movement of the telescopic rod, it can abut against the product to be tested, thereby pressing down the product to be tested and completing the electrical connection between the product to be tested and the base. When the tester drives the driving rod, the main force is applied to the cantilever, so it is convenient for the tester to apply force. Implementing the fixing fixture in the present invention can achieve the purpose of making it easier for the tester to press the product to be tested into the position to be tested. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Among them:

[0019] Figure 1 Shows a schematic structural diagram of a fixing jig in a compressed state according to an embodiment of the present invention;

[0020] Figure 2 Shows Figure 1 A partial enlarged view of part A in

[0021] Figure 3 Shows a schematic structural diagram of a fixing jig in a compressed state from another angle according to an embodiment of the present invention;

[0022] Figure 4 Shows a schematic structural diagram of a fixing jig in a compressed state from another angle according to an embodiment of the present invention;

[0023] Figure 5 Shows a schematic structural diagram of a fixing jig in a released state according to an embodiment of the present invention;

[0024] Figure 6 Shows a schematic structural diagram of a fixing jig in a released state from another angle according to an embodiment of the present invention.

[0025] Main element symbol description:

[0026] Base - 10; Cantilever - 20; Fixing mechanism - 30; Product to be tested - 40; Driving rod - 310; Telescopic rod - 320; Linking rod - 330; Pressing plate - 340; Buffer pad - 350; Guide rod - 121; Lock - 3420; Limiting part - 110; Pin - 3430; Guide part - 120; First section 3210; Second section - 3220; Base - 360. Detailed implementation manners

[0027] To facilitate the understanding of the present invention, the following will describe the present invention more comprehensively with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] In an embodiment of this utility model, a fixing jig is provided. Please refer to Figure 1 and Figure 5 , the fixing jig includes a base 10, a cantilever 20 and a fixing mechanism 30. The base 10 is used to carry a product 40 to be tested, and a circuit is built in the base 10 to facilitate electrical connection with the product 40 to be tested. The cantilever 20 is fixed on the base 10, and the fixing mechanism 30 is arranged on the cantilever 20 so that the fixing mechanism 30 is suspended above the base 10;

[0031] The fixing mechanism 30 includes a driving rod 310, a telescopic rod 320 and a linkage rod 330. The linkage rod 330 is respectively hinged to the cantilever 20 and the driving rod 310. The driving rod 310 is also hinged to the telescopic rod 320. The telescopic rod 320 passes through the cantilever 20 and can move along the axial direction of the telescopic rod 320. Driving the driving rod 310 can drive the linkage rod 330 to rotate relative to the cantilever 20 and then move the telescopic rod 320. The telescopic rod 320 can abut against the product 40 to be tested.

[0032] According to the fixing jig in the above embodiments, the tester only needs to rotate the driving rod 310 to make the driving rod 310 drive the linkage rod 330 to rotate around the hinge point connected to the cantilever 20, so that the driving rod 310 can drive the telescopic rod 320 to move up and down on the base 10. During the descending process of the telescopic rod 320, it can abut against the product 40 to be tested, thereby pressing the product 40 to be tested and completing the electrical connection between the product 40 to be tested and the base 10. When the tester drives the driving rod 310, the main force is applied to the cantilever 20, so it is convenient for the tester to apply force. Implementing the fixing jig in this utility model can achieve the purpose of making it easier for the tester to press the product 40 to be tested into the position to be tested.

[0033] It should be noted that when the fixing mechanism 30 fixes the product 40 to be tested, the driving rod 310 generally leans towards one side of the telescopic rod 320, and the linkage rod 330 is provided with an anti-rotation portion. When the driving rod 310 deviates from the telescopic rod 320 to a certain extent, the anti-rotation portion abuts against the cantilever 20, thereby preventing the further rotation of the linkage rod 330. Finally, the further deflection of the driving rod 310 is prevented. At this time, if the product 40 to be tested wants to bounce up, it first has to overcome the gravity of the telescopic rod 320 and the driving rod 310, which further ensures the stability of the product 40 to be tested when it is fixed.

[0034] Furthermore, the lever principle can be adopted. For example, the length from the end of the driving rod 310 far away from the linkage rod 330 to the hinge joint of the driving rod 310 and the telescopic rod 320 should be greater than the distance between the two hinge joints on the driving rod 310. On the one hand, it can reduce the force exerted by the tester to drive the driving rod 310. On the other hand, it increases the acting force that the product 40 to be tested needs to overcome to lift the fixing mechanism 30.

[0035] In some specific embodiments, please refer to Figure 1 and Figure 4 , the fixing mechanism 30 further includes a pressing plate 340, and the pressing plate 340 is fixed to the end of the telescopic rod 320 far away from the driving rod 310.

[0036] In actual situations, most of the products 40 to be tested are in the shape of a PCB or wrapped with a plastic shell. If the product 40 to be tested is locally stressed, it is likely to be deformed and damaged. Therefore, the pressing plate 340 is needed to share the stress pressure of the product 40 to be tested. In most cases, the size of the pressing plate 340 can completely cover the product 40 to be tested.

[0037] In some specific embodiments, please refer to Figure 5 and Figure 6 , the fixing mechanism 30 is further provided with a buffer pad 350. The buffer pad 350 is fixed below the pressing plate 340, and the buffer pad 350 is made of a flexible material.

[0038] The flexible material can play a buffering role and avoid damaging the product 40 to be tested by the fixing mechanism 30.

[0039] Furthermore, the flexible material can be made of insulating materials such as rubber and silica gel. It can not only play a buffering role but also achieve the purpose of insulation protection.

[0040] Generally speaking, the flexible material is adhered to the pressing plate 340 with glue.

[0041] In some specific embodiments, the pressing plate 340 is provided with a guiding groove (not shown in the figures), and the guiding rod 121 is provided on the cantilever 20 and / or the base 10. The guiding rod 121 passes through the guiding groove (not shown in the figures) to guide the pressing plate 340 to move along the length direction of the telescopic rod 320.

[0042] In this embodiment, the interaction between the guiding groove (not shown in the figures) and the guiding rod 121 defines that the pressing plate 340 and the telescopic rod 320 can only move along the length direction of the telescopic rod 320. Among them, the guiding rod 121 can be fixed on the base 10, or fixed on the cantilever 20, or both.

[0043] In some specific embodiments, please refer to Figures 1-4 , the fixing mechanism 30 further includes a base 360, the pressing plate 340 is further provided with a latch 3420, and the base 360 is provided with a limiting portion 110 corresponding to the latch 3420. The latch 3420 can be snapped into the limiting portion 110 to relatively fix the pressing plate 340 and the base 360, and a part of the bottom of the product 40 to be tested is always supported by the base 360.

[0044] In this embodiment, the latch 3420 latches the limiting portion 110 on the base 360, so as to realize that the product 40 to be tested can be lifted by the base 360 and separated from the base 10.

[0045] It is very laborious to take the product 40 to be tested manually, and improper operation may also cause the pin feet of the device to be tested to deform and damage the device. Generally, the base 360 supports the edge of the product 40 to be tested, so as to avoid damage caused by excessive local stress on the product 40 to be tested.

[0046] When the product 40 to be tested is pulled out, the latch 3420 and the limiting portion 110 are separated, so as to take out the product 40 to be tested.

[0047] It should be noted that the latch 3420 here can actually be non-elastic and can be rigid. There is a claw on the latch 3420, and the claw latches on the limiting portion 110, thereby preventing the pressing plate 340 and the base 10 from moving in the separating direction. Of course, preferably, the latch 3420 is elastic.

[0048] In some specific embodiments, the latch 3420 is rotatably connected to the pressing plate 340, and rotating the latch 3420 can make the latch 3420 latch the limiting portion 110.

[0049] In this embodiment, the latch 3420 does not need to be elastic, as long as it can rotate, it can lock the pressing plate 340 and the base 10.

[0050] In some specific embodiments, a pin member 3430 is further provided on the pressing plate 340. Pin holes (not shown in the figure) are provided on both the pressing plate 340 and the locking buckle 3420. The pin member 3430 is inserted into the pin holes (not shown in the figure) on both the pressing plate 340 and the locking buckle 3420 so that the locking buckle 3420 is rotatably connected to the pressing plate 340.

[0051] In some cases, considering that the thicknesses of the products 40 to be tested of different models are different, it is necessary to replace the locking buckles 3420 with different lengths, so as to conveniently adapt to the products 40 to be tested of different models. The pin member 3430 is inserted into the pin holes (not shown in the figure) on the pressing plate 340 and the locking buckle 3420, which can realize the quick installation and adaptation between the locking buckle 3420 and the pressing plate 340.

[0052] In some specific embodiments, a guiding member 120 is further provided on the base 10. The guiding member 120 has an inclined surface, and the inclined surface is used for sliding with the locking buckle 3420 to drive the locking buckle 3420 to tightly engage with the limiting portion 110.

[0053] When the pressing plate 340 approaches the base 10, the locking buckle 3420 begins to abut against the inclined surface of the guiding member 120. Under the guiding action of the inclined surface, the locking buckle 3420 gradually rotates towards the limiting portion 110 until the locking buckle 3420 and the limiting portion 110 are locked. In this way, the locking action between the locking buckle 3420 and the limiting portion 110 can be quickly realized.

[0054] In some specific embodiments, guiding columns (not shown in the figure) are provided on the base 10. The guiding columns (not shown in the figure) are adapted to the product 40 to be tested so that the product 40 to be tested can be positioned during installation.

[0055] The setting of the guiding columns (not shown in the figure) is mainly to guide the installation and positioning of the product 40 to be tested, so that when the product 40 to be tested is fixed, each pin can just complete the electrical connection with the product 40 to be tested.

[0056] In some specific embodiments, please refer to Figure 6 , the telescopic rod 320 includes a first section 3210 and a second section 3220. The first section 3210 is inserted into the second section 3220, and there is sealed gas between the first section 3210 and the second section 3220.

[0057] The telescopic rod 320 includes a first section 3210 and a second section 3220, which refers to the principle of the air suspension of an automobile. Through the compression and expansion of the air between the first section 3210 and the second section 3220, a buffering effect is achieved. It avoids damage to the product 40 to be tested caused by the violent operation of the tester.

[0058] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0059] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A fixing fixture, characterized in that: The device comprises a base, a cantilever and a fixing mechanism, wherein the base is used to carry the product to be tested, and the base is provided with a circuit for electrical connection with the product to be tested, the cantilever is fixed on the base, and the fixing mechanism is arranged on the cantilever so that the fixing mechanism is suspended above the base; The fixing mechanism includes a driving rod, a telescopic rod and a linkage rod, wherein the linkage rod is hinged to the cantilever and the driving rod respectively, and the driving rod is also hinged to the telescopic rod. The telescopic rod is passed through the cantilever and can move along the axial direction of the telescopic rod. Driving the driving rod can drive the linkage rod to rotate relative to the cantilever and then move the telescopic rod, and the telescopic rod can abut the product to be tested.

2. The fixing fixture according to claim 1, characterized in that: The fixing mechanism further comprises a pressing plate, and the pressing plate is fixed to an end of the telescopic rod away from the driving rod.

3. The fixing fixture according to claim 2, characterized in that: The fixing mechanism is also provided with a buffer pad, which is fixed below the pressing plate and is made of a flexible material.

4. The fixing fixture according to claim 2, characterized in that: The pressing plate is provided with a guide groove, and the cantilever and / or the base are provided with a guide rod, and the guide rod is inserted into the guide groove to guide the pressing plate to move along the length direction of the telescopic rod.

5. The fixing fixture according to claim 2, characterized in that: The fixing mechanism also includes a base, the pressure plate is also provided with a lock, the base is provided with a limiting portion corresponding to the lock, the lock can be snapped into the limiting portion to relatively fix the pressure plate and the base, and part of the bottom of the product to be tested is always supported by the base.

6. The fixing fixture according to claim 5, characterized in that: The lock buckle is rotatably connected to the pressure plate, and rotating the lock buckle can cause the lock buckle to buckle the limiting portion.

7. The fixing fixture according to claim 6, characterized in that: The pressure plate is also provided with a pin, and pin holes are provided on the pressure plate and the lock buckle. The pin is inserted into the pin holes on the pressure plate and the lock buckle at the same time to enable the lock buckle to be rotatably connected to the pressure plate.

8. The fixing fixture according to claim 5, characterized in that: A guide member is also provided on the base, and the guide member has an inclined surface, and the inclined surface is used to slide with the lock buckle to drive the lock buckle to be tightly buckled with the limiting part.

9. The fixing fixture according to claim 5, characterized in that: The base is provided with a guide column, and the guide column is adapted to the product to be tested so that the product to be tested can be positioned during installation.

10. The fixing fixture according to claim 1, characterized in that: The telescopic rod includes a first section and a second section, the first section is inserted into the second section, and there is a sealed gas between the first section and the second section.

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