A quick-change structure for upper mold of a motherboard test fixture

Abstract

The present invention discloses a quick-change structure for the upper mold of a motherboard test fixture, which relates to the technical field of motherboard test fixtures and aims to solve the problem that when switching different types of products, it is necessary to use tools such as wrenches to loosen screws and replace the entire fixture due to the line layout from top to bottom along the fixture body, which results in long switching time and high production costs. The key points of the technical solution are that it includes an upper mold and an upper mold fixture frame, the upper mold fixture frame includes an upper frame rear plate and two upper frame side plates perpendicular to the upper frame rear plate, and the inner walls of the two upper frame side plates are provided with L-shaped slide rails along the length direction of the upper frame side plates, the upper mold includes an upper template and an upper needle plate connected to the bottom surface of the upper template and parallel to the upper template, the upper template is slidably arranged on the slide rail, and a fixing component is provided on the upper template to limit the movement of the upper template along the length direction of the slide rail. The upper template can be quickly pulled out along the slide rail, which is convenient to switch, saves switching time, and improves production and detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of motherboard test jigs, and in particular to an upper mold quick replacement structure of a motherboard test jig. Background Art

[0002] Computer motherboard testing includes circuit performance testing and motherboard function testing. Circuit performance testing is to test whether there are defects in the motherboard circuit, such as whether there are unnecessary short circuits, open circuits or switch failures, and to test whether the LED lights on the motherboard and fans on other hardware are working normally. The motherboard function test is to connect the motherboard with the CPU, hard disk, memory, and all hardware and external devices that the motherboard needs to fully function, and test whether the coordination between the motherboard and external devices is normal, such as testing whether the motherboard can normally drive the sound card, graphics card, network card, or whether it can normally read and write the hard disk and memory.

[0003] The existing test fixture generally includes an upper mold, a lower mold parallel to the upper mold, and a carrier. The motherboard to be tested is placed on the carrier and the carrier is located between the upper mold and the lower mold. A number of probes are arranged on the lower mold, and pinholes for the probes to pass through are opened on the carrier. The probes of the lower mold can pass through the pinholes of the carrier and contact the test points on the motherboard. The upper mold, the lower mold and the outer frame are fixed by screws, and the relevant circuit layout is arranged from top to bottom along the fixture body.

[0004] The above-mentioned existing technical solutions have the following defects: since the relevant lines are arranged from top to bottom along the fixture body, when different types of production products need to be switched, the staff needs to use external tools such as wrenches to loosen the screws and replace the entire test fixture. The switching time is long and the production cost is high, so further improvement is needed. Summary of the invention

[0005] The purpose of the present invention is to provide a quick replacement structure for an upper mold of a mainboard test fixture, which has the effects of quick replacement and time saving.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A quick-change structure for an upper mold of a motherboard test fixture comprises an upper mold and an upper mold fixture frame for installing the upper mold, the upper mold fixture frame comprises a relative upper frame rear plate and an upper frame front plate, and two upper frame side plates perpendicular to the upper frame front plate, and slide rails with L-shaped cross-sections are arranged on the relative inner walls of the two upper frame side plates along the length direction of the upper frame side plates, the upper mold comprises an upper template and an upper needle plate connected to the bottom surface of the upper template and parallel to the upper template, the upper template is slidably arranged on the slide rail, and a fixing component is arranged on the upper template to limit the movement of the upper template along the length direction of the slide rail.

[0008] The present invention is further configured as follows: the fixing assembly includes a plurality of positioning pins penetrating the upper template, and a plurality of positioning holes for the positioning pins to be inserted are formed on the top surface of the slide rail.

[0009] The present invention is further configured as follows: the fixing assembly further comprises a spring steel ball embedded on the side surface of the upper template, and a slot for the spring steel ball to be engaged is provided on the inner side wall of the slide rail.

[0010] The present invention is further configured as follows: a lateral automatic plug-in and pull-out module is arranged at the left and right sides of the lower surface of the upper needle plate, and the lateral automatic plug-in and pull-out module includes a first side cylinder fixed on the lower surface of the upper needle plate and a power adapter card connected to the driving end of the first side cylinder.

[0011] The present invention is further configured as follows: the horizontal automatic plug-in and pull-out module also includes a network cable adapter card, a USB adapter card and a probe module arranged on the side of the lower surface of the upper needle plate.

[0012] The present invention is further configured as follows: a second side cylinder is fixed on the upper surface of the upper needle plate, the driving end of the second side cylinder is connected to a cylinder connecting block, and the network cable adapter card, USB adapter card and probe module are all arranged through the cylinder connecting block and fixed on the cylinder connecting block.

[0013] The present invention is further configured as follows: an integrated switching module for switching electrical pipes, air pipes, optical fibers and signal lines is provided on the back of the upper template, and a clearance groove cooperating with the integrated switching module is provided on the rear plate of the upper frame.

[0014] The present invention is further configured as follows: a reinforcing strip is fixedly provided on one end of the top surface of the upper template away from the upper frame rear plate, and a handle is connected to the front side of the reinforcing strip.

[0015] In summary, the beneficial technical effects of the present invention are:

[0016] 1. Through the setting of the slide rail and the fixed component, the fixed component can be opened and the upper template can be quickly pulled out along the slide rail, which is convenient for switching, saves switching time, and improves production and inspection efficiency; the horizontal automatic plug-in module is fixed on the upper template, and when the upper mold is replaced, the horizontal automatic plug-in module can be quickly replaced as a whole, which is more convenient;

[0017] 2. Through the setting of spring steel balls, the upper template is inserted into the upper frame side plates along the slide rail, and the spring steel balls are also embedded in the corresponding slots, which limits the upper template from moving along the length direction of the slide rail and improves the stability of the upper template installation; when the upper template needs to be removed, pull out the positioning pin and pull the upper template outward. At this time, the ball head of the spring steel ball retreats after being squeezed outward from the slot, and the ball head compresses the spring to deform, so that the spring steel ball slowly slides out of the slot, so that the upper template and the slide rail are gradually separated, which is convenient and quick;

[0018] 3. Through the setting of the integrated transfer module, the electricity, air pipes, optical fibers, signal lines, etc. required for the upper mold test are all transferred through the integrated transfer module to achieve quick docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0021] Figure 3 It is a schematic diagram of a partial cross-section structure used to show a fixed component;

[0022] Figure 4 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 5 It is a schematic diagram for showing the structure of the upper needle plate and the horizontal automatic plug-in and pull-out module.

[0024] In the figure, 1. upper mold fixture frame; 11. upper frame side plate; 12. upper frame rear plate; 121. give way groove; 2. slide rail; 3. upper template; 31. integrated adapter module; 32. handle; 33. reinforcement strip; 4. upper needle plate; 41. network cable adapter card; 42. USB adapter card; 43. probe module; 5. positioning pin; 6. spring steel ball; 61. card slot; 7. first side cylinder; 71. power adapter card; 8. cylinder connecting block. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] Reference Figure 1 and Figure 2 , which is a quick-change structure of an upper mold of a motherboard test fixture disclosed in the present invention, including an upper mold and an upper mold fixture frame 1 for installing the upper mold, the upper mold fixture frame 1 includes an upper frame rear plate 12 and two upper frame side plates 11 perpendicular to the upper frame rear plate 12, and the opposite inner walls of the two upper frame side plates 11 are screwed with a slide rail 2 with an L-shaped cross section along the length direction of the upper frame side plates 11, and the upper mold includes an upper mold plate 3 and an upper needle plate 4 ( Figure 5As shown in the figure, the upper template 3 is slidably arranged on the slide rail 2. When the test fixture needs to be replaced, the upper template 3 can be quickly pulled out along the slide rail 2, which is convenient for switching, saves switching time, and improves production and inspection efficiency.

[0027] Reference Figure 1 and Figure 5 , the left and right sides of the lower surface of the upper needle plate 4 are provided with a lateral automatic plug-in module, which includes a first side cylinder 7 fixed on the lower surface of the upper needle plate 4 and a power adapter card 71 connected to the driving end of the first side cylinder 7. The lateral automatic plug-in module also includes a network cable adapter card 41, a USB adapter card 42 and a probe module 43 arranged at the side of the lower surface of the upper needle plate 4. A second side cylinder (not shown in the figure) is fixed on the upper surface of the upper needle plate 4, and the driving end of the second side cylinder is connected to a cylinder connection block 8, and the network cable adapter card 41, the USB adapter card 42 and the probe module 43 are all arranged through the cylinder connection block 8 and fixed on the cylinder connection block 8. After the lower template lifts the main board to be tested on the carrier upward, it starts the second side cylinder and introduces USB, mesh, power supply and other interfaces to the horizontal side, which reduces the operator's operation and greatly improves the test efficiency. The horizontal automatic plug-in module is fixed together with the upper template 3 to improve the efficiency of changing the model, and it is convenient to achieve the effect of overall rapid replacement when the upper template 3 is replaced.

[0028] Reference Figure 3 and Figure 4 , a fixing component is provided on the upper template 3 to limit the movement of the upper template 3 along the length direction of the slide rail 2. The fixing component includes a plurality of positioning pins 5 inserted through the upper template 3, and a plurality of positioning holes (not shown in the figure) for inserting the positioning pins 5 are provided on the top surface of the slide rail 2. The fixing component also includes a spring steel ball 6 embedded in the side surface of the upper template 3, and the spring steel ball 6 includes a sphere and a spring connected to the sphere. A slot 61 for the spring steel ball 6 to engage with is provided on the inner side wall of the slide rail 2. In this embodiment, the spring steel ball 6 is located at the midpoint of the side surface of the upper template 3. When installing the upper template 3, the upper template 3 is inserted into the upper frame side plate 11 along the slide rail 2, and the spring steel ball 6 is engaged in the slot 61, and then the positioning pin 5 is inserted into the corresponding positioning hole to further fix the upper template 3 and limit the movement of the upper template 3 along the length direction of the slide rail 2. When the upper template 3 needs to be replaced, pull out the positioning pin 5 and pull the upper template 3 outward in the horizontal direction. At this time, the ball head of the spring steel ball 6 retreats after being squeezed outward away from the slot 61, and the ball head compresses the spring to deform, causing the spring steel ball 6 to slowly slide out of the slot 61, so that the upper template 3 is gradually separated from the slide rail 2, and the upper template 3 can be removed quickly and conveniently.

[0029] Reference Figure 1 and Figure 4The back of the upper template 3 is provided with an integrated adapter module 31 for connecting electrical and gas pipes, optical fibers, and signal lines to achieve quick docking. The upper frame rear plate 12 is provided with a clearance groove 121 that cooperates with the integrated adapter module 31. In order to facilitate the operator to pull the upper template 3 outward, a reinforcing strip 33 is fixedly provided on the top surface of the upper template 3 away from the upper frame rear plate 12, and a handle 32 is screwed to the front of the reinforcing strip 33.

[0030] The implementation principle of this embodiment is: when the upper template 3 needs to be replaced, the positioning pin 5 is pulled out, and the upper template 3 is pulled outward in the horizontal direction. At this time, the ball head of the spring steel ball 6 retreats after being squeezed outward from the slot 61, and the ball head compresses the spring to deform, so that the spring steel ball 6 slowly slides out of the slot 61, so that the upper template 3 is gradually separated from the slide rail 2, and the upper template 3 can be removed. The switching is convenient, saving switching time and improving production and detection efficiency; the horizontal automatic plug-in module is fixed on the upper template 3, and when the upper mold is replaced, the horizontal automatic plug-in module can be quickly replaced as a whole, which is more convenient.

[0031] When installing the upper template 3, the upper template 3 is inserted between the upper frame side plates 11 along the slide rail 2, the spring steel ball 6 is embedded in the slot 61, and then the positioning pin 5 is inserted into the corresponding positioning hole to further fix the upper template 3, limit the movement of the upper template 3 along the length direction of the slide rail 2, and improve the stability of the installation of the upper template 3.

[0032] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A quick-change structure for an upper mold of a motherboard test fixture, comprising an upper mold and an upper mold fixture frame (1) for mounting the upper mold, wherein the upper mold fixture frame (1) comprises an upper frame rear plate (12) and two upper frame side plates (11) perpendicular to the upper frame rear plate (12), characterized in that: A slide rail (2) with an L-shaped cross section is arranged on the opposite inner walls of the two upper frame side plates (11) along the length direction of the upper frame side plates (11); the upper mold comprises an upper mold plate (3) and an upper needle plate (4) connected to the bottom surface of the upper mold plate (3) and parallel to the upper mold plate (3); the upper mold plate (3) is slidably arranged on the slide rail (2); and a fixing component is arranged on the upper mold plate (3) to limit the movement of the upper mold plate (3) along the length direction of the slide rail (2); The fixing assembly comprises a plurality of positioning pins (5) which are inserted through the upper template (3); and a plurality of positioning holes for inserting the positioning pins (5) are provided on the top surface of the slide rail (2); The fixing assembly also includes a spring steel ball (6) embedded on the side of the upper template (3), and a slot (61) for the spring steel ball (6) to engage is provided on the inner side wall of the slide rail (2); A transverse automatic plug-in / pull-out module is provided at the left and right sides of the lower surface of the upper needle plate (4), and the transverse automatic plug-in / pull-out module comprises a first side cylinder (7) fixed to the lower surface of the upper needle plate (4) and a power adapter card (71) connected to the driving end of the first side cylinder (7); The horizontal automatic plug-in and pull-out module also includes a network cable adapter card (41), a USB adapter card (42) and a probe module (43) arranged on the side edge of the lower surface of the upper needle plate (4).

2. The upper mold quick replacement structure of a motherboard test fixture according to claim 1, characterized in that: A second side cylinder is fixed on the upper surface of the upper needle plate (4), and a driving end of the second side cylinder is connected to a cylinder connecting block (8). The network cable adapter card (41), the USB adapter card (42) and the probe module (43) are all arranged through the cylinder connecting block (8) and fixed on the cylinder connecting block (8).

3. The upper mold quick replacement structure of a motherboard test fixture according to claim 1, characterized in that: An integrated switching module (31) for switching electrical and gas pipes, optical fibers and signal lines is arranged on the back of the upper template (3), and a clearance groove (121) cooperating with the integrated switching module (31) is provided on the upper frame rear plate (12).

4. The upper mold quick replacement structure of a motherboard test fixture according to claim 3, characterized in that: A reinforcing strip (33) is fixedly provided on the top surface of the upper template (3) at one end away from the upper frame rear plate (12), and a handle (32) is connected to the front side of the reinforcing strip (33).

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