CN219777734U - Clamping tool for testing PCB contacts and keys - Google Patents

Abstract

The utility model discloses a clamping tool for PCB contacts and key tests, which comprises a base, an operating mechanism, a lower pressing plate, a positioning plate, a supporting rod, contact ejector pins, a mounting plate and a key test rod, wherein the operating mechanism is fixedly arranged on the upper end face of the base, the lower pressing plate is connected with the operating mechanism and is parallel to the upper end face of the base, the lower pressing plate is provided with a vertically downward extrusion column, the mounting plate is fixedly arranged on two sides of the lower pressing plate, the mounting plate is provided with the key test rod, the key test rod is parallel to the lower end face of the lower pressing plate, the positioning plate is arranged above the base through the supporting rod, the positioning plate is positioned under the lower pressing plate, the positioning plate is provided with a positioning groove, the positioning groove is matched with the contour of the PCB, and the contact ejector pins vertically penetrate through the upper end face of the base and are oppositely arranged with test contacts on the PCB. The technical problems that in the existing PCB testing technology, a worker needs to press keys on a PCB by hand to enable testing to be carried out, so that operation is inconvenient, the PCB is easy to touch by mistake, and electric shock is caused are solved.

Description

Clamping tool for testing PCB contacts and keys

Technical Field

The utility model relates to the technical field of PCB performance test, in particular to a clamping tool for testing PCB contacts and keys.

Background

The PCB is called a printed circuit board, in the industrial field, the PCB is used as a supporting carrier and an electrical interconnection medium of other electronic components, and is one of core components which are not less than those in various control systems, in order to ensure that the PCB can be better used, the PCB must be tested before flowing into the market, in the existing PCB test technology, the PCB is usually placed in a positioning plate, and the PCB test contact is pressed down with the positioning plate through a pressing mechanism, so that the PCB test contact is in contact with a thimble, and multi-port simultaneous access data is realized, however, in the test process of some PCB, the contact is not only in contact with the thimble, but also in need of being matched with to press keys on the PCB, and in the test process, workers need to press the keys by bare hands, so that the next test can be performed, and the following problems are caused:

1. the operation space is small, and the operation of staff is inconvenient.

In the testing process of the PCB, in an electrified state, a worker presses a key by hand, so that the PCB is easy to touch by mistake, and electric shock occurs.

Disclosure of Invention

The utility model aims to provide a clamping tool for PCB contact and key testing, which is used for solving the technical problems that in the existing PCB testing technology, a worker is required to press keys on a PCB by hands to enable the test to be carried out, so that the operation is inconvenient, the PCB is easy to touch by mistake, and electric shock is caused.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a clamping tool for testing a PCB contact and a key, which comprises the following components:

a base;

the operating mechanism is fixedly arranged on the upper end face of the base;

the lower pressing plate is connected with the operating mechanism and is parallel to the upper end face of the base, and a plurality of extrusion columns are arranged on the lower end face of the lower pressing plate;

the mounting plate is fixedly mounted on two sides of the lower pressing plate, a plurality of mounting through holes are formed in the mounting plate, and the bottom end of the mounting plate is higher than the bottom end of the extrusion column;

the key test bars are arranged on the mounting plate through the mounting through holes;

the positioning plate is arranged above the base through a supporting rod and is positioned right below the lower pressing plate, and is provided with a positioning groove which is matched with the outline of the PCB;

the plurality of contact thimble, a plurality of contact thimble run through the base up end, contact thimble top with test contact on the PCB board sets up relatively.

Preferably, the operating mechanism comprises a fixing frame, a connecting frame and a pressing rod, wherein the fixing frame is fixedly arranged on the upper end face of the base, the connecting frame is fixedly connected with the fixing frame, a sleeve is arranged at the lower end of the connecting frame, the upper end of the pressing rod is hinged to the upper end of the connecting frame, the other end of the pressing rod penetrates through the sleeve and is fixedly connected with the pressing plate, the pressing plate is sleeved on the fixing frame (2), and the pressing plate can slide up and down along the fixing frame.

Preferably, the device further comprises a limiting column, one end of the limiting column is fixedly connected with the fixing frame, and the other end of the limiting column penetrates through the lower pressing plate and is fixedly connected with the base.

Preferably, the base is of a hollow structure, a data port is arranged on the side wall of the base, and the data port is electrically connected with the bottom end of the contact thimble.

Preferably, the number of the data ports is at least two.

Preferably, the data ports include at least uart ports and swd ports.

Preferably, the base further comprises a power interface and an energizing switch, and the power interface is electrically connected with the energizing switch.

Preferably, the contact thimble is made of elastic metal material.

Preferably, the support rod comprises a shell, a spring and a shaft rod, wherein the shell is fixedly arranged on the upper end face of the base, a limiting groove is formed in the shell, the spring is arranged inside the shell, one end of the shaft rod is arranged inside the shell, the shaft rod is arranged at one end inside the shell, is abutted to the spring, and the other end of the shaft rod is fixedly connected with the positioning plate.

Preferably, the base, the lower pressing plate, the positioning plate and the key test rod are all made of insulating materials.

Compared with the prior art, the utility model has the following beneficial effects:

according to the technical scheme, the clamping tool for testing the PCB contacts and the keys is provided, the operating mechanism is fixedly arranged on the upper end face of the base, the lower pressing plate is connected with the operating mechanism and is parallel to the upper end face of the base, the lower end face of the lower pressing plate is provided with the extrusion columns, the mounting plate is fixedly arranged on two sides of the lower pressing plate, the key test rod is arranged on the mounting plate through the mounting through hole, the positioning plate is arranged above the base through the supporting rod, the positioning plate is arranged right below the lower pressing plate, the positioning plate is provided with the positioning grooves matched with the contours of the PCB, the upper end face of the base is provided with the contact ejector pins, and the top ends of the contact ejector pins are opposite to the test contacts on the PCB.

Drawings

The following drawings are merely corresponding to some of the embodiments of the present utility model and are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of an embodiment of the present utility model.

Fig. 2 is a rear view of an embodiment of the present utility model.

Fig. 3 is a cross-sectional view of a support bar according to an embodiment of the present utility model.

The main reference numerals illustrate:

1. a base; 1.1, a data port; 1.2, a power interface; 1.3, powering on the switch; 2. a lower pressing plate; 2.1, extruding the column; 3. a positioning plate; 3.1, positioning grooves; 4. a support rod; 4.1, a shell; 4.11, a limit groove; 4.2, a spring; 4.3, a shaft lever; 5. a contact thimble; 6. a mounting plate; 7. a key test bar; 8. a fixing frame; 8.1 fixing a transverse plate; 8.2, fixing the vertical plate; 9. a connecting frame; 9.1, a sleeve; 10. pressing down a rod; 11. and a limit column.

Detailed Description

The embodiment of the utility model provides a clamping tool for testing a PCB contact and a key, which is used for solving the technical problems that in the existing PCB testing technology, a worker is required to press the key on a PCB by hand to enable the test to be carried out, so that the operation is inconvenient, the PCB is easy to touch by mistake, and electric shock is caused.

The embodiment of the utility model has the conception that the operating mechanism is fixedly arranged on the upper end surface of the base, the lower pressing plate is connected with the operating mechanism and is parallel to the upper end surface of the base, the lower end surface of the lower pressing plate is provided with the extrusion column, the mounting plate is fixedly arranged on two sides of the lower pressing plate, the key test rod is arranged on the mounting plate through the mounting through hole, the positioning plate is arranged above the base through the supporting rod, the positioning plate is arranged under the lower pressing plate, the positioning plate is provided with the positioning groove matched with the contour of the PCB, the upper end surface of the base is provided with the contact thimble, the top end of the contact thimble is opposite to the test contact on the PCB, the test function of the PCB test contact is realized, meanwhile, the key test rod is used for pressing the key on the PCB, so that the test is smoothly carried out, and the technical problems that the operation is inconvenient and the test is easy to be mistakenly touched to the PCB because a worker is required to press the key on the PCB by bare hands in the prior PCB test technology are solved.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

This example is merely one specific example of an embodiment of the present utility model, and the present utility model will be described in further detail below with reference to the accompanying drawings and the specific examples. 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.

As shown in fig. 1, a clamping tool for testing PCB contacts and keys according to an embodiment of the present utility model includes: base 1, operating device, holding down plate 2, locating plate 3, bracing piece 4, a plurality of contact thimble 5, mounting panel 6 and four button test bars 7.

As shown in fig. 1 and fig. 2, the base 1 is a flip hollow structure, and comprises a box body and an upper end face of the base 1 hinged with the box body, the specific shape is a cuboid, two data ports 1.1 are arranged on a rear side wall (one side of the box body hinged with the upper end face) of the base 1, the data ports 1.1 comprise uart ports and swd ports, the number and types of the data ports 1.1 are not fixed, the number of the data ports 1.1 can be properly increased according to actual situation needs, and USB ports and the like can be added to the type of the data ports 1.1.

As shown in fig. 2, a power interface 1.2 is further disposed on the rear side wall of the base 1 and beside the data port 1.1, an energizing switch 1.3 is disposed on the upper end surface of the base 1, the energizing switch 1.3 penetrates through the upper end surface of the base 1, a terminal of the energizing switch 1.3 is disposed inside the base 1, and the power interface 1.2 is electrically connected with the energizing switch 1.3 through a connecting wire.

As shown in fig. 1 and 2, the operating mechanism is fixedly mounted on the upper end surface of the base 1, the operating mechanism comprises a fixing frame 8, a connecting frame 9 and a pressing rod 10, the fixing frame 8 is composed of a fixed transverse plate 8.1 and a fixed vertical plate 8.2, the fixed transverse plate 8.1 and the fixed vertical plate 8.2 are mutually perpendicular, the fixed vertical plate 8.2 is disposed on one side of the fixed transverse plate 8.1, which is close to the data port 1.1, the fixed vertical plate 8.2 plays a role of supporting and fixing the fixed transverse plate 8.1, the fixing frame 8 is vertically and fixedly mounted on one side of the upper end surface of the base 1, which is close to the data port 1.1, the connecting frame 9 is far away from one side of the data port 1.1, the connecting frame 9 is provided with a sleeve 9.1 at the lower end, the upper end of the pressing rod 10 is hinged with the upper end of the connecting frame 9, and the lower end of the pressing rod 10 penetrates through the sleeve 9.1 and is fixedly connected with the lower end surface of the pressing plate 2.

As shown in fig. 1 and 2, the upper end surface of the lower pressing plate 2 is fixedly connected with the lower pressing rod 10, one side, close to the lower end surface, of the lower pressing plate 2 is sleeved on the fixed transverse plate 8.1, the lower pressing plate 2 can slide up and down along the fixed transverse plate 8.1, the lower pressing plate 2 is parallel to the upper end surface of the base 1, six pressing columns 2.1 are fixedly mounted on the lower end surface of the lower pressing plate 2, the pressing columns 2.1 are perpendicular to the upper end surface of the base 1, mounting plates 6 are fixedly mounted on the left side and the right side of the lower pressing plate 2, two mounting through holes are formed in one side, close to the lower end surface, of the mounting plates 6, the lower end surface of the mounting plates 6 is higher than the bottom end of the pressing columns 2.1, so that when the lower pressing plate is prevented from being pressed down, the pressing columns 2.1 are not contacted with a PCB, the mounting plates 6 are abutted against the positioning plates 3, four key test rods 7 are fixedly mounted on the two keys 6 through the four mounting through the mounting through holes, and the lower end surfaces of the four key test rods 7 are parallel to the lower end surfaces of the mounting plates 2.

As shown in fig. 1 and 3, four through holes are formed in the positioning plate 3, the positioning plate 3 is mounted above the base 1 through the through holes and the supporting rod 4, the positioning plate 3 is located right below the lower pressing plate 2, the supporting rod 4 comprises a shell 4.1, a spring 4.2 and a shaft lever 4.3, the shell 4.1 is cylindrical, a circular groove is formed in the shell 4.1, the circular groove is matched with the spring 4.2, a limit groove 4.11 is further formed in the shell 4.1, the shell 4.1 is fixedly mounted on the upper end face of the base 1, the spring 4.2 is arranged inside the circular groove of the shell 4.1, one end of the shaft lever 4.3 is arranged in the circular groove of the shell 4.1 and is in butt joint with the spring 4.2, the shaft lever 4.3 is prevented from being separated from the shell 4.1 through the limit groove 4.11, the other end of the shaft lever 4.3 is fixedly connected with the positioning plate 3 through the limit groove, and the positioning plate 3 is fixedly connected with the positioning plate 1 through the profile groove.

As shown in fig. 1 and fig. 2, a plurality of contact thimble 5 penetrate through the upper end face of the base 1, the top ends of the contact thimble 5 are in one-to-one correspondence with the test contacts on the PCB board, the bottom ends of the contact thimble 5 are electrically connected with the data port 1.1 through connecting wires, and a plurality of contact thimble 5 are perpendicular to the upper end face of the base 1 and are parallel to each other.

The using process of the clamping tool for testing the PCB contacts and the keys is as follows: through external power supply of power source, utilize signal line connection computer and data port, put into frock positioning groove department with the PCB board, the depression bar drives down the clamp plate and moves down, the extrusion post supports and leans on the PCB board, downwardly extrude the PCB board, the PCB board is along with the positioning plate downward movement, make contact thimble and the test contact on the PCB board, open the switch that circular telegram, begin the test, in the test step, corresponding button on the PCB board is pressed through button test lever when button test, until the test is finished, close the switch that circular telegram, lift up the depression bar down, the PCB board resets under the bracing piece effect with the positioning plate, take out the PCB board, end whole test procedure.

In the technical scheme of the embodiment of the utility model, the data port 1.1, the power interface 1.2 and the power switch 1.3 are arranged on the base 1, the power interface 1.2 is electrically connected with the power switch 1.3 through the connecting wire, after one PCB is tested, the power switch 1.3 is closed, then the PCB is taken out and the next PCB to be tested is put in, so that the danger of electric shock caused by the contact of workers to the top needle in the process of taking out and putting in is avoided; the fixing frame 8 is fixedly arranged on the upper end face of the base 1, the fixing frame 8 is fixedly arranged on the connecting frame 9, the sleeve 9.1 is arranged at the lower end of the connecting frame 9, the upper end of the lower pressing rod 10 is hinged with the upper end of the connecting frame 9, the lower end of the lower pressing rod penetrates through the sleeve 9.1 and is fixedly connected with the lower pressing plate 2, the lower pressing plate 2 is parallel to the upper end face of the base 1, the pressing column 2.1 is arranged on the lower end face of the lower pressing plate 2, the mounting plate 6 is fixedly arranged on two sides of the lower pressing plate 2, the key test rod 7 is arranged on the mounting plate 6 and is parallel to the lower end face of the lower pressing plate 2, the positioning plate 3 is arranged above the base 1 through the supporting rod 4, the positioning plate 3 is arranged under the lower pressing plate 2, the positioning plate 3 is provided with the positioning groove 3.1 matched with the contour of the PCB, the upper end face of the base 1 is provided with the contact thimble 5, the top end of the contact thimble 5 is oppositely arranged with a test contact on the PCB, the bottom end of the contact thimble 5 is electrically connected with the data port 1.1 through a connecting wire, the function of the PCB contact test is realized, meanwhile, the key test of the PCB is carried out through the key test rod 7, the key test board, the PCB is required by a worker to press the key test operation, the PCB is carried out, the key test operation is carried out in the existing test technology, the problem that the operation is easy, and the problem that the PCB is caused by the error operation is caused, and the error operation caused by the PCB is caused.

In some preferred embodiments, as shown in fig. 2, the device further includes two limiting columns 11, two limiting columns 11 are disposed on one side of the fixed transverse plate 8.1 opposite to the connecting frame 9, two limiting columns 11 are disposed on two sides of the fixed vertical plate 8.2, the limiting columns 11 are perpendicular to the upper end face of the base 1, the upper ends of the limiting columns 11 are fixedly connected with the fixed frame 8, the other ends penetrate through the lower pressing plate 2 and are fixedly connected with the base 1, and the limiting columns 11 play a limiting role on the lower pressing plate 2, so that the lower pressing plate 2 is not lifted too high.

In some preferred embodiments, the contact thimble 5 is made of an elastic metal material, and when the contacts of the test on the PCB are inconsistent due to manual operation errors, the contact thimble 5 made of the elastic metal material can automatically adjust the height of the thimble, so as to ensure that each contact thimble 5 can be in contact with the test contacts of the PCB.

In some preferred embodiments, the base 1, the lower pressing plate 2, the positioning plate 3 and the key test bar 7 are all made of insulating materials, so as to further prevent the phenomenon that workers generate electric shock due to false triggering.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art to which the utility model pertains will appreciate that numerous variations and modifications can be made without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims (10)

1. A centre gripping frock for PCB contact and button test, its characterized in that includes:

a base (1);

the operating mechanism is fixedly arranged on the upper end face of the base (1);

the lower pressing plate (2) is connected with the operating mechanism and is parallel to the upper end face of the base (1), and a plurality of extrusion columns (2.1) are arranged on the lower end face of the lower pressing plate (2);

the mounting plates (6) are fixedly mounted on two sides of the lower pressing plate (2), a plurality of mounting through holes are formed in the mounting plates (6), and the bottom ends of the mounting plates (6) are higher than the bottom ends of the extrusion columns (2.1);

a plurality of key test bars (7), wherein the key test bars (7) are arranged on the mounting plate (6) through a plurality of mounting through holes;

the positioning plate (3), the positioning plate (3) is installed above the base (1) through a supporting rod (4), the positioning plate (3) is located under the lower pressing plate (2), the positioning plate (3) is provided with a positioning groove (3.1), and the positioning groove (3.1) is matched with the outline of the PCB;

the plurality of contact thimble (5), a plurality of contact thimble (5) run through base (1) up end, contact thimble (5) top with test contact on the PCB board sets up relatively.

2. The clamping tool for testing the PCB contacts and keys according to claim 1, wherein the operating mechanism comprises a fixing frame (8), a connecting frame (9) and a pressing down rod (10), the fixing frame (8) is fixedly installed on the upper end face of the base (1), the connecting frame (9) is fixedly connected with the fixing frame (8), a sleeve (9.1) is arranged at the lower end of the connecting frame (9), the upper end of the pressing down rod (10) is hinged to the upper end of the connecting frame (9), the other end of the pressing down rod (10) penetrates through the sleeve (9.1) and is fixedly connected with the pressing down plate (2), the pressing down plate (2) is sleeved on the fixing frame (8), and the pressing down plate (2) can slide up and down along the fixing frame (8).

3. The clamping tool for testing the PCB contacts and the keys according to claim 2, further comprising a limiting column (11), wherein one end of the limiting column (11) is fixedly connected with the fixing frame (8), and the other end of the limiting column (11) penetrates through the lower pressing plate (2) to be fixedly connected with the base (1).

4. The clamping tool for testing the PCB contacts and the keys according to claim 1, wherein the base (1) is of a hollow structure, a data port (1.1) is arranged on the side wall of the base (1), and the data port (1.1) is electrically connected with the bottom end of the contact thimble (5).

5. Clamping fixture for PCB contact and key testing according to claim 4, characterized in that the number of data ports (1.1) is at least two.

6. Clamping fixture for PCB contact and key testing according to claim 4 or 5, characterized in that the data port (1.1) comprises at least a uart port and a swd port.

7. Clamping fixture for PCB contact and key testing according to claim 1, characterized in that the base (1) further comprises a power interface (1.2) and an energizing switch (1.3), the power interface (1.2) being electrically connected with the energizing switch (1.3).

8. The clamping tool for testing the PCB contacts and the keys according to claim 1, wherein the contact ejector pins (5) are made of elastic metal materials.

9. The clamping tool for testing the PCB contacts and the keys according to claim 1, wherein the supporting rod (4) comprises a shell (4.1), a spring (4.2) and a shaft lever (4.3), the shell (4.1) is fixedly installed on the upper end face of the base (1), a limit groove (4.11) is formed in the shell (4.1), the spring (4.2) is arranged in the shell (4.1), one end of the shaft lever (4.3) is arranged in the shell (4.1) and is abutted to the spring (4.2), and the other end of the shaft lever is fixedly connected with the positioning plate (3).

10. The clamping tool for testing the PCB contacts and the keys according to claim 1, wherein the base (1), the lower pressing plate (2), the positioning plate (3) and the key testing rod (7) are all made of insulating materials.