CN219417620U - Test fixture - Google Patents

Abstract

The utility model discloses a test fixture, which comprises a test seat and an adjusting mechanism, wherein the test seat comprises a circuit board and a socket arranged on the circuit board, a test shell is arranged on one side of the socket, which is away from the circuit board, and the test shell forms a test cavity with an opening, the test cavity is used for placing a product to be tested, and the opening is used for allowing the product to be tested to pass through; the adjusting mechanism comprises a driving assembly, a transmission structure and an adjusting rod group, the transmission structure and the adjusting rod group are positioned in the test cavity, the driving assembly movably penetrates through the test shell and is connected with the transmission structure, the adjusting rod group comprises a plurality of adjusting rods which are distributed in an array type and are movably connected, and a test probe is arranged at each intersection; the driving assembly is used for driving the transmission structure to drive the plurality of adjusting rods to move along the direction perpendicular to the extending direction of the adjusting rods so as to adjust the position of the test probe. The test fixture can be suitable for testing various types of products to be tested, has strong universality and wide application range, can avoid waste, reduces production cost and improves production efficiency.

Description

Test fixture

Technical Field

The utility model relates to the technical field of test equipment, in particular to a test tool.

Background

At present, the varieties of SIP products are more, and each type of SIP product corresponds to one type of test fixture when the electrical analysis is carried out on the SIP product. When the life cycle of one type of SIP product is finished, the test fixture corresponding to the type of SIP product cannot be used as the test fixture of other types of SIP products, so that the universality is low, the test fixture corresponding to the type of SIP product can be eliminated, the test fixture matched with the other types of SIP products needs to be manufactured again, waste is caused, the production cost is high, and the production efficiency is reduced when the test fixture of various types is manufactured.

Disclosure of Invention

The utility model mainly aims to provide a test fixture, and aims to solve the problems of high production cost and low production efficiency caused by low universality of the existing test fixture.

The test seat comprises a circuit board and a socket arranged on the circuit board, wherein a test shell is arranged on one side, away from the circuit board, of the socket, the test shell forms a test cavity with an opening, the test cavity is used for placing a product to be tested, and the opening is used for allowing the product to be tested to pass through;

the adjusting mechanism comprises a driving assembly, a transmission structure and an adjusting rod group, the transmission structure and the adjusting rod group are positioned in the test cavity, the driving assembly movably penetrates through the test shell and is connected with the transmission structure, the adjusting rod group comprises a plurality of adjusting rods which are distributed in an array type and are movably connected, and a test probe is arranged at each intersection; the driving assembly is used for driving the transmission structure to drive the plurality of adjusting rods to move along the direction perpendicular to the extending direction of the adjusting rods so as to adjust the position of the test probe.

Optionally, the drive assembly includes a first drive rod and a second drive rod; the transmission structure comprises a first transmission assembly and a second transmission assembly, wherein the plurality of adjusting rods are divided into a plurality of X-direction adjusting rods extending along the X direction and a plurality of Y-direction adjusting rods extending along the Y direction, the plurality of X-direction adjusting rods are distributed at intervals along the Y direction, and the plurality of Y-direction adjusting rods are distributed at intervals along the Y direction;

the first driving rod is used for driving the first transmission assembly to drive the plurality of X-direction adjusting rods to move along the Y direction; the second driving rod is used for driving the second transmission assembly to drive the plurality of Y-direction adjusting rods to move along the X direction; the test probes are slidably arranged on the corresponding X-direction adjusting rods along the X-direction, and each Y-direction adjusting rod can stretch and retract along the Y-direction.

Optionally, the test shell is provided with a first side shell wall arranged along the X direction, and the first driving rod penetrates through the first side shell wall along the Y direction and is in threaded connection with the first side shell wall; a test bench is arranged in the test cavity, the test bench is arranged opposite to the opening, and a plurality of test probes are distributed on the test bench;

the first transmission assembly comprises a plurality of first transmission rods, the plurality of first transmission rods are arranged in a crossing mode to form a first scissor-type structure which is telescopic along the Y direction, and one end of each first driving rod extending into the test cavity is connected with the end portion of the corresponding first scissor-type structure close to the test cavity; the intersection of two first transmission rods which are arranged in any intersection way is connected with one X-direction adjusting rod, one end of each first transmission rod is hinged to the test bench, and the other end of each first transmission rod faces the opening;

the first driving rod is rotated to drive the first scissor-type structure to stretch along the Y direction, so that the X-direction adjusting rods are driven to synchronously move along the Y direction.

Optionally, the test case is provided with a second side case wall arranged along the Y direction, the first side case wall is connected with the second side case wall, and the second driving rod penetrates through the second side case wall along the X direction and is in threaded connection with the second side case wall;

the second transmission assembly comprises a plurality of second transmission rods, the second transmission rods are arranged in a crossing mode to form a second scissor-type structure which is telescopic along the X direction, and one end of each second driving rod extending into the test cavity is connected with the end part of the second scissor-type structure which is close to the second driving rod; the intersection of two second transmission rods which are arranged in any intersection way is connected with one Y-direction adjusting rod, one end of each second transmission rod is hinged to the test bench, and the other end of each second transmission rod faces the opening;

the second driving rod is rotated to drive the second scissor-type structure to stretch along the X direction, so that the Y-direction adjusting rods are driven to synchronously move along the X direction.

Optionally, the Y-direction adjusting rod includes a plurality of adjusting sections that can stretch out and draw back along the Y-direction, sets up same any adjacent two test probes on the Y-direction adjusting rod between all be connected with one the adjusting section.

Optionally, each adjusting section includes three sleeves that set up along the Y direction, and three the sleeve is middle sleeve and two end sleeve respectively, wherein, two end sleeve respectively connect to two adjacent that correspond on the test probe, middle sleeve's one end can be followed the Y and slided and locate in one of them end sleeve, just middle sleeve's the other end can be followed the Y and slided and locate outside the other end sleeve.

Optionally, the test shell is provided with a third side shell wall arranged along the X direction and a fourth side shell wall arranged along the Y direction, and the first side shell wall, the second side shell wall, the third side shell wall and the fourth side shell wall are sequentially connected end to form the test cavity;

the testing mechanism further comprises a limiting mechanism, the limiting mechanism comprises an X-direction limiting rod arranged along the X direction and a Y-direction limiting rod arranged along the Y direction, X-direction sliding grooves extending along the X direction are formed in the first side shell wall and the third side shell wall, Y-direction sliding grooves extending along the Y direction are formed in the second side shell wall and the fourth side shell wall, two ends of the X-direction limiting rod can respectively pass through the two Y-direction sliding grooves in a sliding mode along the Y direction, two ends of the Y-direction limiting rod can respectively pass through the two X-direction sliding grooves in a sliding mode along the X direction, and a limiting space is defined by the X-direction limiting rod, the third side shell wall and the fourth side shell wall so that products to be tested placed in the testing cavity are limited in the limiting space.

Optionally, the X-direction stop lever with the Y-direction stop lever all includes the pole body and divides to locate two butt strips of pole body along the both sides of Z direction, the pole body corresponds each the flexible inslot has all been seted up to the position of butt strip, the butt strip inserts in the flexible inslot that corresponds, just the butt strip with the cell wall of flexible groove that corresponds is connected through an elastic component, so that the butt strip can be relative the pole body is along Z direction flexible.

Optionally, a temperature sensor and a humidity sensor are further arranged on one side, away from the circuit board, of the socket, and the temperature sensor and the humidity sensor are both contained in the test cavity.

Optionally, the test seat further comprises a gland hinged to one side of the test shell and used for opening or closing the opening so as to correspondingly press or separate from the test product placed in the test cavity.

In the use process of the test fixture, the driving assembly drives the transmission structure to drive the plurality of adjusting rods to move, and the moving direction of each adjusting rod is perpendicular to the extending direction of the adjusting rod, so that the plurality of test probes at the intersection can move along the direction perpendicular to the extending direction of the adjusting rod. After the adjustment is finished, the product to be tested is placed into the test cavity of the test shell through the opening, so that each test point of the product to be tested is abutted against the corresponding test probe, the product to be tested is conducted with the circuit board, and further the electrical test of the product to be tested is realized.

If different types of products to be tested need to be replaced, the positions of the test probes are only required to be readjusted according to the mode, so that a plurality of test probes of the test tool are matched with a plurality of test points of the products to be tested one by one, the operation is simple and convenient, the test tool can be matched with the tests of the products to be tested of a plurality of types, the universality is strong, the application range is wide, the test tool can test the products to be tested of a plurality of types, the test tool of a plurality of types is not required to be manufactured, the waste is avoided, the production cost is greatly reduced, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a test fixture according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a part of a test fixture according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a part of the test seat and the adjusting mechanism in the test fixture according to an embodiment of the utility model

FIG. 4 is a schematic structural diagram of a test bench and an adjusting mechanism in a test fixture according to an embodiment of the utility model;

FIG. 5 is a schematic view of a part of a test bench and an adjusting mechanism in a test fixture according to an embodiment of the utility model;

FIG. 6 is a schematic structural diagram of a limiting mechanism in a test fixture according to an embodiment of the present utility model;

FIG. 7 is a schematic cross-sectional view of an X-direction stop lever or a Y-direction stop lever in a test fixture according to an embodiment of the utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The technical solutions of the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in this embodiment are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The description of the orientations of "up", "down", "front", "rear", "left", "right", etc. in the present utility model is based on the orientations shown in fig. 1 and 4, and is merely for explaining the relative positional relationship between the components in the orientations shown in fig. 1 and 4, and if the specific orientation is changed, the directional indication is changed accordingly.

The utility model provides a test fixture 100.

As shown in fig. 1 to 5, the test fixture 100 of the present embodiment includes a test socket 10 and an adjusting mechanism 20, wherein the test socket 10 includes a circuit board 11 and a socket 12 disposed on the circuit board 11, a test shell 13 is disposed on a side of the socket 12 facing away from the circuit board 11, the test shell 13 forms a test cavity 131 with an opening 132, the test cavity 131 is used for placing a product to be tested, and the opening 132 is used for allowing the product to be tested to pass through; the adjusting mechanism 20 comprises a driving component 21, a transmission structure 22 and an adjusting rod group 23, the transmission structure 22 and the adjusting rod group 23 are positioned in the test cavity 131, the driving component 21 movably penetrates through the test shell 13 and is connected with the transmission structure 22, the adjusting rod group 23 comprises a plurality of adjusting rods which are distributed in an array type and are movably connected, and a test probe 24 is arranged at each intersection; the driving assembly 21 is used for driving the transmission structure 22 to drive the plurality of adjusting rods to move along a direction perpendicular to the extending direction of the adjusting rods so as to adjust the position of the test probe 24.

It should be noted that the product to be tested may be a SIP product or other products similar to the SIP product and needing to be electrically analyzed. The SIP product has a plurality of points to be tested, which are used for interfacing with the test probes 24 to realize electrical testing of the SIP product. The locations of the test points for different types of SIP products are different.

Specifically, as shown in fig. 1 to 5, the upper side of the circuit board 11 is provided with a socket 12, the upper side of the socket 12 is provided with a test case 13, and an opening 132 is formed at the top of the test case 13. In the adjusting mechanism 20, the adjusting rod group 23 includes a plurality of adjusting rods 231 which are distributed in an array type and cross, two adjusting rods 231 which are arranged in any cross are movably connected at the cross part, and each cross part is provided with a test probe 24, so that the adjusting mechanism 20 can include a plurality of rows and a plurality of columns of test probes 24 which are arranged in an array type. The two adjusting rods 231 which are arbitrarily crossed are movably connected, so that the adjusting rods 231 which are not crossed with each other cause obstruction and interference when each adjusting rod 231 moves along the direction perpendicular to the extending direction.

In the use process of the test fixture 100 of the embodiment, the positions of the plurality of test probes 24 of the test fixture 100 are adjusted according to the type of the product to be tested, such as a SIP product. Specifically, the driving assembly 21 drives the transmission structure 22 to drive the plurality of adjusting rods 231 to move, and the moving direction of each adjusting rod 231 is perpendicular to the extending direction of the adjusting rod 231, so that the plurality of test probes 24 at the intersection can move along the extending direction perpendicular to the adjusting rod 231. After the adjustment is completed, the SIP product is placed into the test cavity 131 of the test shell 13 through the opening 132, so that each test point of the SIP product is abutted against the corresponding test probe 24, and the SIP product is conducted with the circuit board 11, thereby realizing the electrical test of the SIP product.

It can be appreciated that if different types of SIP products need to be replaced, the positions of the test probes 24 need to be readjusted according to the above manner, so that a plurality of test probes 24 of the test tool 100 are adapted to a plurality of test points of the SIP products one by one, the operation is simple and convenient, the test tool 100 can be adapted to the testing of the SIP products of various types, the universality is strong, the application range is wide, the test tool 100 can test the SIP products of various types, and therefore, the test tool 100 of various types does not need to be manufactured, waste is avoided, the production cost is greatly reduced, and meanwhile, the production efficiency is improved.

In an embodiment, the plurality of adjusting rods 231 are arrayed and distributed in the X-direction and the Y-direction, and two adjusting rods 231 which are arbitrarily intersected are movably connected, so that the adjusting rods 231 do not intersect with each other when each adjusting rod 231 moves along the direction perpendicular to the extending direction, and obstruction and interference are caused between the adjusting rods 231. When the driving component 21 drives the transmission structure 22, the transmission structure 22 can drive the plurality of adjusting rods 231 extending along the X direction to move along the Y direction, and can also drive the plurality of adjusting rods 231 extending along the Y direction to move along the X direction, so that the test probes 24 can move along the X direction and the Y direction, and further the positions of the test probes 24 can be adjusted, and the plurality of test probes 24 of the test fixture 100 can meet the condition of one-to-one adaptation with a plurality of test points of the SIP product.

Specifically, as shown in fig. 2 to 5, in an embodiment, the driving assembly 21 includes a first driving lever 211 and a second driving lever 212; the transmission structure 22 comprises a first transmission assembly 221 and a second transmission assembly 222, wherein the plurality of adjusting rods 231 are divided into a plurality of X-direction adjusting rods 231a extending along the X direction and a plurality of Y-direction adjusting rods 231b extending along the Y direction, the plurality of X-direction adjusting rods 231a are distributed at intervals along the Y direction, and the plurality of Y-direction adjusting rods 231b are distributed at intervals along the Y direction; the first driving rod 211 is used for driving the first transmission assembly 221 to drive the plurality of X-direction adjusting rods 231a to move along the Y-direction; the second driving rod 212 is used for driving the second transmission assembly 222 to drive the plurality of Y-direction adjusting rods 231b to move along the X-direction; the test probes 24 are slidably disposed on the corresponding X-direction adjusting bars 231a along the X-direction, and each Y-direction adjusting bar 231b is retractable along the Y-direction.

When the position of the test probe 24 in the X direction needs to be adjusted, the second driving rod 212 is used to drive the second transmission assembly 222 to drive the plurality of Y-direction adjusting rods 231b to move along the X direction, so as to drive the test probe 24 at each intersection to slide along the X direction in the corresponding X-direction adjusting rod 231a, thereby avoiding interference between the X-direction adjusting rods 231a and the Y-direction adjusting rods 231b and realizing the position adjustment of the test probe 24 in the X direction. When the position of the test probe 24 in the Y direction needs to be adjusted, the first driving rod 211 is used for driving the first transmission assembly 221 to drive the plurality of X-direction adjusting rods 231a to move along the Y direction, and the Y-direction adjusting rods 231b can stretch along the Y direction along with the movement of the X-direction adjusting rods 231a, so that the interference between the X-direction adjusting rods 231a and the Y-direction adjusting rods 231b is avoided, and further the test probe 24 at each intersection is driven to move along the Y direction, so that the position adjustment of the test probe 24Y in the direction is realized. The adjusting mechanism 20 in the test fixture 100 of the embodiment can realize the position adjustment of the test probe 24 in the X direction and the Y direction while avoiding interference, and has a reasonable and ingenious structure.

In one embodiment, the test case 13 has a first side wall 133 disposed along the X direction, and the first driving rod 211 penetrates the first side wall 133 along the Y direction and is screwed with the first side wall 133; a test bench 14 is arranged in the test cavity 131, the test bench 14 is arranged opposite to the opening 132, and a plurality of test probes 24 are distributed on the test bench 14; the first transmission assembly 221 comprises a plurality of first transmission rods 2211, the plurality of first transmission rods 2211 are arranged in a crossing mode to form a first scissor-type structure which is telescopic along the Y direction, and one end of the first driving rod 211 extending into the test cavity 131 is connected with the end portion of the first scissor-type structure which is arranged close to the first driving rod 211; an X-direction adjusting rod 231a is connected to the intersection of two first transmission rods 2211 which are arranged in an arbitrary intersection manner, one end of each first transmission rod 2211 is hinged to the test bench 14, and the other end of each first transmission rod 2211 is arranged towards the opening 132; the first driving rod 211 is rotated to drive the first scissor structure to stretch and retract along the Y direction, so as to drive the plurality of X-direction adjusting rods 231a to synchronously move along the Y direction.

The X direction is the left-right direction shown in fig. 1 and 4, the Y direction is the front-rear direction shown in fig. 1 and 4, and the Z direction is the up-down direction shown in fig. 1 and 4.

As shown in fig. 1 to 5, the test bench 14 is located at the bottom of the test chamber 131, and the top of the test chamber 131 is provided with an opening 132. The first transmission component 221 is of a first scissor type structure, the first scissor type structure can stretch along the Y direction, specifically, a plurality of first transmission rods 2211 in the first scissor type structure are arranged in a crossing mode, each crossing is connected with an X-direction adjusting rod 231a, the lower end of each first transmission rod 2211 is hinged to the test bench 14, the upper end of each first transmission rod 2211 is arranged towards the opening 132, and rotation of the first transmission rods 2211 relative to the test bench 14 is achieved. It should be noted that, the first scissor-type structure may adopt a scissor-type structure in the prior art, and pushing one of the intersections along the Y direction may drive the first scissor-type structure to integrally stretch along the Y direction, and this principle belongs to the prior art and will not be described herein.

The first side wall 133 is a front side wall of the test case 13, and a rear end of the first driving rod 211 extends into the test chamber 131 through the front side wall and is connected to a front end of the first scissor structure. The first driving lever 211 may employ a screw in the related art. When adjustment is needed, the first driving rod 211 is rotated, and the first driving rod 211 is in threaded connection with the first side shell wall 133, so that the first driving rod 211 moves back and forth relative to the first side shell wall 133 in the rotating process, and the first scissor structure is pushed to stretch along the Y direction, namely stretch back and forth, so that the plurality of X-direction adjusting rods 231a are driven to synchronously move along the Y direction, and the adjustment of the front and back positions of the test probe 24 is realized. The adjusting mechanism 20 in the test fixture 100 of the embodiment can realize the position adjustment of the test probe 24 in the Y direction by using the first driving rod 211 and the first scissor-type structure, and has flexible and smart structural design and easy operation.

Further, the test case 13 has a second side case wall 134 provided along the Y-direction, the first side case wall 133 is connected to the second side case wall 134, and the second driving rod 212 penetrates the second side case wall 134 along the X-direction and is screwed to the second side case wall 134; the second transmission assembly 222 includes a plurality of second transmission rods 2221, the plurality of second transmission rods 2221 are arranged in a pair-wise crossing manner to form a second scissor-type structure which is telescopic along the X-direction, and one end of the second driving rod 212 extending into the test cavity 131 is connected with an end part of the second scissor-type structure arranged close to the second driving rod 212; the intersection of two second transmission rods 2221 which are arranged at random in a crossing way is connected with a Y-direction adjusting rod 231b, one end of each second transmission rod 2221 is hinged with the test bench 14, and the other end of each second transmission rod 2221 faces the opening 132; the second driving rod 212 is rotated to drive the second scissor structure to stretch and retract along the X direction, so as to drive the plurality of Y-direction adjusting rods 231b to synchronously move along the X direction.

As shown in fig. 1 to 5, the second transmission assembly 222 is a second scissor-type structure, the second scissor-type structure can stretch along the X direction, specifically, a plurality of second transmission rods 2221 in the second scissor-type structure are arranged in a crossing manner, each crossing is connected with a Y-direction adjusting rod 231b, the lower end of each second transmission rod 2221 is hinged to the test bench 14, and the upper end of each second transmission rod 2221 is arranged towards the opening 132, so that the second transmission rods 2221 can rotate relative to the test bench 14. It should be noted that, the second scissor type structure may adopt a scissor type structure in the prior art, and pushing one of the intersections along the X direction will drive the second scissor type structure to stretch and retract along the X direction, and this principle belongs to the prior art and will not be described herein.

The second side wall 134 is a right side wall of the test case 13, and a left end of the second driving rod 212 extends into the test chamber 131 through the right side wall and is connected to a right end of the second scissor-type structure. The second drive rod 212 may be a screw as in the prior art. When adjustment is needed, the second driving rod 212 is rotated, and the second driving rod 212 is in threaded connection with the second side shell wall 134, so that the second driving rod 212 moves left and right relative to the second side shell wall 134 in the rotating process, and the second scissor structure is pushed to stretch along the X direction, namely stretch left and right, so that the plurality of Y-direction adjusting rods 231b are driven to synchronously move along the X direction, and the adjustment of the left and right positions of the test probe 24 is realized. The adjusting mechanism 20 in the test fixture 100 of the embodiment can realize the position adjustment of the test probe 24 in the X direction by using the second driving rod 212 and the second scissor-type structure, and has flexible and smart structural design and easy operation.

Further, the Y-direction adjusting lever 231b includes a plurality of adjusting sections 2311 that are retractable along the Y-direction, and one adjusting section 2311 is connected between any two adjacent test probes 24 disposed on the same Y-direction adjusting lever 231 b. When the X-direction adjustment lever 231a moves in the Y-direction, the plurality of adjustment sections 2311 of the Y-direction adjustment lever 231b can extend and retract in the Y-direction, thereby avoiding obstruction or interference with the X-direction adjustment lever 231a.

Specifically, each adjusting section 2311 includes three sleeves disposed along the Y direction, the three sleeves being a middle sleeve 23112 and two end sleeves 23111, wherein the two end sleeves 23111 are respectively connected to two corresponding adjacent test probes 24, one end of the middle sleeve 23112 is slidably sleeved in one of the end sleeves 23111 along the Y direction, and the other end of the middle sleeve 23112 is slidably sleeved outside the other end sleeve 23111 along the Y direction.

It can be appreciated that each adjustment section 2311 has a three-section structure, including three sleeves, wherein the inner diameter of one end sleeve 23111, the middle sleeve 23112 and the other end sleeve 23111 is gradually reduced or increased, such that the middle sleeve 23112 can slidably extend or retract in the Y direction one of the end sleeves 23111 with larger inner diameter than the middle sleeve 23112, and the other end sleeve 23111 with smaller inner diameter than the middle sleeve 23112 can slidably extend or retract in the Y direction the middle sleeve 23112, thereby realizing the Y-direction telescoping process of the adjustment section 2311 and further realizing the Y-direction telescoping process of the Y-direction adjustment rod 231b, and the structure is simple and reasonable.

In one embodiment, the test housing 13 has a third side housing wall 135 disposed along the X direction and a fourth side housing wall 136 disposed along the Y direction, and the first side housing wall 133, the second side housing wall 134, the third side housing wall 135, and the fourth side housing wall 136 are sequentially connected end to form the test chamber 131; the testing mechanism further comprises a limiting mechanism 30, the limiting mechanism 30 comprises an X-direction limiting rod 31 arranged along the X direction and a Y-direction limiting rod 32 arranged along the Y direction, X-direction sliding grooves 137 extending along the X direction are formed in the first side shell wall 133 and the third side shell wall 135, Y-direction sliding grooves 138 extending along the Y direction are formed in the second side shell wall 134 and the fourth side shell wall 136, two ends of the X-direction limiting rod 31 respectively penetrate through the two Y-direction sliding grooves 138 in a sliding mode along the Y direction, two ends of the Y-direction limiting rod 32 respectively penetrate through the two X-direction sliding grooves 137 in a sliding mode along the X direction, and a limiting space is formed by the X-direction limiting rod 31, the Y-direction limiting rod 32, the third side shell wall 135 and the fourth side shell wall 136 in a surrounding mode so that a product to be tested placed in the testing cavity 131 is limited in the limiting space.

As shown in fig. 1 to 5, the first side casing wall 133, the second side casing wall 134, the third side casing wall 135, and the fourth side casing wall 136 are the front side casing wall, the right side casing wall, the rear side casing wall, and the left side casing wall of the test casing 13, respectively. Because the model of the product to be measured is inconsistent, the size of the product to be measured is inconsistent. After the product to be tested is placed in the test cavity 131, in order to stably limit the product to be tested in the limit space, at this time, the positions of the X-direction limit rod 31 and the Y-direction limit rod 32 may be adjusted according to the outer peripheral dimension of the product to be tested. Specifically, the two Y-direction sliding grooves 138 provide sliding conditions for the X-direction limiting rod 31, and push the X-direction limiting rod 31 along the Y-direction, so that the X-direction limiting rod 31 can slide along the Y-direction, and further the position adjustment of the X-direction limiting rod 31 is realized; similarly, the two X-direction sliding grooves 137 provide sliding conditions for the Y-direction limiting rod 32, and the Y-direction limiting rod 32 is pushed along the X-direction, so that the Y-direction limiting rod 32 can slide along the X-direction, and further, the position adjustment of the Y-direction limiting rod 32 is realized.

It can be appreciated that the X-direction limiting rod 31, the Y-direction limiting rod 32, the third side casing wall 135 and the fourth side casing wall 136 enclose a limiting space, and since the positions of the X-direction limiting rod 31 and the Y-direction limiting rod 32 are adjustable, the size adjustment of the limiting space is realized, so that the product to be tested is limited in the limiting space by the cooperation of the X-direction limiting rod 31, the Y-direction limiting rod 32, the third side casing wall 135 and the fourth side casing wall 136, so that the test point of the product to be tested is accurately aligned with the test probe 24, and the test accuracy is improved.

As shown in fig. 1, 2, 6 and 7, in an embodiment, the X-direction limiting rod 31 and the Y-direction limiting rod 32 each include a rod body 33 and two abutting strips 34 respectively disposed on two sides of the rod body 33 along the Z-direction, the rod body 33 is provided with a telescopic slot 35 corresponding to each abutting strip 34, the abutting strips 34 are inserted into the corresponding telescopic slots 35, and the abutting strips 34 are connected with the walls of the corresponding telescopic slots 35 through an elastic member 36, so that the abutting strips 34 can extend and retract along the Z-direction relative to the rod body 33.

Two abutting strips 34 are respectively arranged on the upper side and the lower side of the rod body 33, two telescopic grooves 35 are respectively formed on the upper side and the lower side of the rod body 33, and the two abutting strips 34 are respectively inserted into the two telescopic grooves 35 in a telescopic manner. When the abutting strips 34 are not pressed, the two abutting strips 34 of the X-direction limiting rod 31 slide along the Y-direction respectively

The upper and lower groove walls of the groove 138 are abutted tightly, so that stable assembly of the X-direction limiting rod 31 and the test shell 13 is realized; similarly, under the condition that the abutting strips 34 are not extruded, the two abutting strips 34 of the Y-direction limiting rod 32 are respectively abutted against the upper groove wall and the lower groove wall of the X-direction sliding groove 137, so that stable assembly of the Y-direction limiting rod 32 and the test shell 13 is realized.

When the X-direction limiting rod 31 needs to be adjusted, the upper abutting strip 34 is pressed downwards and the upper abutting strip 34 is pressed upwards, the two elastic pieces 36 are in a compressed state, so that the two abutting strips 34 are separated

The two abutting strips 34 are respectively retracted into the two telescopic grooves 35, so that the two abutting strips 34 are not abutted against the upper groove 0 wall and the lower groove 0 wall of the Y-direction sliding groove 138, so that after the X-direction limiting rod 31 is pushed to move to a required position, the two abutting strips 34 are loosened,

the abutting strip 34 extends out of the corresponding telescopic groove 35 and abuts against the corresponding groove wall again under the action of the elastic restoring force of the corresponding elastic piece 36, so that the structure design is reasonable and ingenious, and the operation is convenient.

Similarly, when the Y-direction stop lever 32 needs to be adjusted, the upper abutting strip 34 is pressed downward and the upper abutting strip 34 is pressed upward, the two elastic members 36 are in compressed state, so that the two abutting 5 strips 34 are respectively retracted into the two expansion slots 35, and the two abutting strips 34 are respectively connected with the upper and lower sides of the X-direction sliding slot 137

The two groove walls are not abutted any more, so that after the Y-direction limiting rod 32 is pushed to move to a required position, the two abutting strips 34 are loosened, and the abutting strips 34 extend out of the corresponding telescopic grooves 35 and are abutted again with the corresponding groove walls under the action of elastic restoring force of the corresponding elastic pieces 36. In one embodiment, the resilient member 36 may be a spring as known in the art.

0 in order to avoid the obstruction and interference generated by the X-direction limit rod 31 and the Y-direction limit rod 32 in the moving process, the rods

The body 33 may be provided as a telescopic rod body 33 such that the rod body 33 of the X-direction stopper rod 31 may be telescopic in the X-direction and the rod body 33 of the Y-direction stopper rod 32 may be telescopic in the Y-direction. Specifically, the rod body 33 includes a limiting section 331 and an inserting section 332, wherein the abutting strip 34 and the expansion groove 35 are disposed on the limiting section 331, the X-direction limiting rod 31 is disposed at one end of the limiting section 331 far away from the inserting section 332 and one end of the inserting section 332 far away from the limiting section 331 are respectively 5 and slidably penetrate through the two Y-direction sliding grooves 138 along the Y-direction, one end of the inserting section 332, facing the limiting section 331, is disposed in a hollow cylinder shape, and the other end of the limiting section 331 is telescopically inserted into the inserting section 332. Similarly, on the Y-direction limiting rod 32, one end of the limiting section 331 away from the inserting section 332 and one end of the inserting section 332 away from the limiting section 331 can respectively pass through the two X-direction sliding grooves 137 in a sliding manner along the X direction, and the inserting section 332 faces to

One end of the limiting section 331 is configured as a hollow cylinder, so that the other end of the limiting section 331 can be telescopically inserted into the 0 inserting section 332.

In an embodiment, a temperature sensor 15 and a humidity sensor 16 are further disposed on a side of the socket 12 facing away from the circuit board 11, and the temperature sensor 15 and the humidity sensor 16 are both accommodated in the test cavity 131. As shown in fig. 3, a temperature sensor 15 and a humidity sensor 16 are disposed on the upper side of the socket 12, wherein the temperature sensor 15 and the humidity sensor 16 are both contained in the test cavity 131, and in the test process, the temperature sensor 15 and the humidity sensor 16 can respectively test the temperature and the humidity of the product to be tested in the cavity 131 in real time, thereby improving the accuracy of electrical analysis of the product to be tested and facilitating failure analysis of the product to be tested. Moreover, compared with the prior art that the temperature and humidity of the product to be tested in the test tool cannot be detected in real time, the product to be tested can only be placed in the constant temperature and humidity box, and after waiting for a long time, the temperature and humidity in the test tool cavity is estimated, the test tool 100 of the embodiment can test the temperature and humidity of the product to be tested in the cavity 131 in real time by arranging the temperature sensor 15 and the humidity sensor 16 in the cavity 131 without waiting, thereby greatly shortening the test time and improving the test efficiency.

In one embodiment, the test socket 10 further includes a pressing cover 17 hinged to one side of the test housing 13 and adapted to open or close the opening 132 to correspond to press-fit or release of the test product placed in the test cavity 131. As shown in fig. 1 and 2, the gland 17 is hinged to the rear side wall of the test piece. Before testing the product to be tested, the test fixture 100 rotates the gland 17 upwards, so that the gland 17 opens the opening 132, and the product to be tested is conveniently placed into the test cavity 131 from the opening 132. In the testing process, the pressing cover 17 is rotated downwards, so that the pressing cover 17 closes the opening 132, at this time, the pressing cover 17 can press down the product to be tested, so that the test point at the bottom of the product to be tested is ensured to be effectively abutted with the corresponding test probe 24, the reliability is high, and the testing accuracy and the effectiveness are ensured.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. A test fixture, characterized in that the test fixture comprises:

the test seat comprises a circuit board and a socket arranged on the circuit board, wherein a test shell is arranged on one side, away from the circuit board, of the socket, the test shell forms a test cavity with an opening, the test cavity is used for placing a product to be tested, and the opening is used for allowing the product to be tested to pass through;

the adjusting mechanism comprises a driving assembly, a transmission structure and an adjusting rod group, the transmission structure and the adjusting rod group are positioned in the test cavity, the driving assembly movably penetrates through the test shell and is connected with the transmission structure, the adjusting rod group comprises a plurality of adjusting rods which are distributed in an array type and are movably connected, and a test probe is arranged at each intersection; the driving assembly is used for driving the transmission structure to drive the plurality of adjusting rods to move along the direction perpendicular to the extending direction of the adjusting rods so as to adjust the position of the test probe.

2. The test fixture of claim 1, wherein the drive assembly comprises a first drive rod and a second drive rod; the transmission structure comprises a first transmission assembly and a second transmission assembly, wherein the plurality of adjusting rods are divided into a plurality of X-direction adjusting rods extending along the X direction and a plurality of Y-direction adjusting rods extending along the Y direction, the plurality of X-direction adjusting rods are distributed at intervals along the Y direction, and the plurality of Y-direction adjusting rods are distributed at intervals along the Y direction;

the first driving rod is used for driving the first transmission assembly to drive the plurality of X-direction adjusting rods to move along the Y direction; the second driving rod is used for driving the second transmission assembly to drive the plurality of Y-direction adjusting rods to move along the X direction; the test probes are slidably arranged on the corresponding X-direction adjusting rods along the X-direction, and each Y-direction adjusting rod can stretch and retract along the Y-direction.

3. The test fixture of claim 2, wherein the test housing has a first side wall disposed along an X-direction, and the first drive rod extends through and is threadably coupled to the first side wall along a Y-direction; a test bench is arranged in the test cavity, the test bench is arranged opposite to the opening, and a plurality of test probes are distributed on the test bench;

the first transmission assembly comprises a plurality of first transmission rods, the plurality of first transmission rods are arranged in a crossing mode to form a first scissor-type structure which is telescopic along the Y direction, and one end of each first driving rod extending into the test cavity is connected with the end portion of the corresponding first scissor-type structure close to the test cavity; the intersection of two first transmission rods which are arranged in any intersection way is connected with one X-direction adjusting rod, one end of each first transmission rod is hinged to the test bench, and the other end of each first transmission rod faces the opening;

the first driving rod is rotated to drive the first scissor-type structure to stretch along the Y direction, so that the X-direction adjusting rods are driven to synchronously move along the Y direction.

4. A test fixture according to claim 3, wherein the test housing has a second side housing wall arranged along the Y-direction, the first side housing wall being connected to the second side housing wall, the second drive rod extending through the second side housing wall along the X-direction and being threadedly connected to the second side housing wall;

the second transmission assembly comprises a plurality of second transmission rods, the second transmission rods are arranged in a crossing mode to form a second scissor-type structure which is telescopic along the X direction, and one end of each second driving rod extending into the test cavity is connected with the end part of the second scissor-type structure which is close to the second driving rod; the intersection of two second transmission rods which are arranged in any intersection way is connected with one Y-direction adjusting rod, one end of each second transmission rod is hinged to the test bench, and the other end of each second transmission rod faces the opening;

the second driving rod is rotated to drive the second scissor-type structure to stretch along the X direction, so that the Y-direction adjusting rods are driven to synchronously move along the X direction.

5. The test fixture of claim 4, wherein the Y-direction adjusting rod comprises a plurality of adjusting sections which can extend and retract along the Y-direction, and one adjusting section is connected between any two adjacent test probes arranged on the same Y-direction adjusting rod.

6. The test fixture of claim 5, wherein each of the adjustment sections includes three sleeves disposed along a Y direction, the three sleeves being a middle sleeve and two end sleeves, respectively, wherein the two end sleeves are respectively connected to two adjacent test probes, one end of the middle sleeve is slidably sleeved in one of the end sleeves along the Y direction, and the other end of the middle sleeve is slidably sleeved outside the other end sleeve along the Y direction.

7. The test fixture of claim 4, wherein the test housing has a third side housing wall disposed along an X-direction and a fourth side housing wall disposed along a Y-direction, the first side housing wall, the second side housing wall, the third side housing wall, and the fourth side housing wall being connected end to end in sequence to form the test cavity;

the testing mechanism further comprises a limiting mechanism, the limiting mechanism comprises an X-direction limiting rod arranged along the X direction and a Y-direction limiting rod arranged along the Y direction, X-direction sliding grooves extending along the X direction are formed in the first side shell wall and the third side shell wall, Y-direction sliding grooves extending along the Y direction are formed in the second side shell wall and the fourth side shell wall, two ends of the X-direction limiting rod can respectively pass through the two Y-direction sliding grooves in a sliding mode along the Y direction, two ends of the Y-direction limiting rod can respectively pass through the two X-direction sliding grooves in a sliding mode along the X direction, and a limiting space is defined by the X-direction limiting rod, the third side shell wall and the fourth side shell wall so that products to be tested placed in the testing cavity are limited in the limiting space.

8. The test fixture of claim 7, wherein the X-direction stop lever and the Y-direction stop lever each comprise a lever body and two abutting strips respectively arranged on two sides of the lever body along the Z-direction, the positions of the lever body corresponding to the abutting strips are provided with telescopic slots, the abutting strips are inserted into the corresponding telescopic slots, and the abutting strips are connected with the walls of the corresponding telescopic slots through an elastic piece, so that the abutting strips can extend and retract along the Z-direction relative to the lever body.

9. The test fixture of any one of claims 1-8, wherein a temperature sensor and a humidity sensor are further disposed on a side of the socket facing away from the circuit board, and the temperature sensor and the humidity sensor are both contained in the test cavity.

10. The test fixture of any one of claims 1-8, wherein the test seat further comprises a gland hinged to one side of the test shell and adapted to open or close the opening to correspond to crimping or disengaging a test product placed within the test cavity.