Calibration device and PCB testing apparatus

Abstract

The utility model belongs to the PCB detection technical field relates to a kind of calibration device and PCB test equipment.The calibration device includes calibration plate and two calibration components, two the calibration component is oppositely arranged along first direction, the calibration component includes first calibration support, second calibration support and compression structure, second calibration support is movably connected in first calibration support along second direction, compression structure is installed in second calibration support, compression structure is used to cooperate with second calibration support to the edge of calibration plate is clamped, and compression structure can adjust the clamping force of the edge of calibration plate;First direction and second direction intersect.The calibration device can be more accurate control to the alignment of calibration plate, and can reduce debugging time, improve efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of PCB testing technology, and in particular relates to a calibration device and PCB testing equipment. Background Technology

[0002] When debugging PCB testing equipment, calibration is generally required using a glass calibration board. During calibration, the glass calibration board is first clamped by the clamping structure on the PCB testing equipment. Then, the edges of the glass calibration board are manually pried using a screwdriver or other tools to fine-tune its position, aligning the reference line on the glass calibration board with the reference line on the PCB testing equipment in the height direction. During this process, the position of the glass calibration board after prying can be identified using the vision components on the PCB testing equipment.

[0003] However, it is difficult to precisely control the distance when manually prying the glass calibration plate, which is inefficient and can easily damage the valuable and fragile glass calibration plate. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a calibration device and PCB testing equipment to address the low efficiency of existing manual alignment of glass calibration plates.

[0005] To solve the above-mentioned technical problems, on the one hand, this utility model provides a calibration device, including a calibration plate and two calibration components. The two calibration components are arranged opposite to each other along a first direction. Each calibration component includes a first calibration bracket, a second calibration bracket, and a clamping structure. The second calibration bracket is movably connected to the first calibration bracket along a second direction. The clamping structure is installed on the second calibration bracket. The clamping structure is used to cooperate with the second calibration bracket to clamp the edge of the calibration plate, and the clamping structure can adjust the clamping force on the edge of the calibration plate. The first direction intersects with the second direction.

[0006] According to the calibration device of this utility model embodiment, after the clamping structure cooperates with the second calibration bracket to clamp the edge of the calibration plate, the calibration plate is aligned by adjusting the position of the second calibration bracket relative to the first calibration bracket in at least one calibration component. Compared with manually prying the glass calibration plate, this calibration device can achieve more precise control over the alignment of the calibration plate, reduce debugging time, and improve efficiency. In addition, since the clamping structure can adjust the clamping force on the edge of the calibration plate, it can meet different clamping force requirements.

[0007] Optionally, the calibration component further includes a drive structure, which is mounted on the second calibration bracket. The output end of the drive structure is connected to the first calibration bracket, and the drive structure is used to drive the second calibration bracket to move relative to the first calibration bracket along the second direction.

[0008] Optionally, the first calibration bracket includes a base and a nut seat, wherein the nut seat is mounted on the base; The drive structure includes a drive bracket and a drive bolt. The drive bracket is mounted on the second calibration bracket. The first end of the drive bolt is rotatably connected to the drive bracket, and the second end of the drive bolt is threaded to the nut seat. The central axis of the drive bolt is parallel to the second direction.

[0009] Optionally, the drive bracket includes a connecting seat, a first connecting arm, and a second connecting arm. The connecting seat is mounted on the second calibration bracket, and the first connecting arm and the second connecting arm are connected to the connecting seat, with the first connecting arm and the second connecting arm spaced apart along the first direction. A transition groove is formed between the connecting seat, the first connecting arm, and the second connecting arm, and the first end of the drive bolt is rotatably connected to the transition groove. The first connecting arm is provided with a lock hole that communicates with the adapter groove; The drive structure also includes a locking bolt, which is threaded into the locking hole, and the end of the locking bolt near the adapter groove can abut against the drive bolt.

[0010] Optionally, the drive structure further includes an elastic element that is elastically connected between the second calibration bracket and the nut seat.

[0011] Optionally, the second calibration bracket includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate and the third connecting plate are respectively connected to opposite sides of the second connecting plate along the first direction. The first connecting plate is slidably connected to the first calibration bracket along the second direction. The clamping structure is installed on the second connecting plate and is used to cooperate with the third connecting plate to clamp the edge of the calibration plate.

[0012] Optionally, the clamping structure includes a clamping bracket and a clamping bolt. The clamping bracket is disposed opposite to the third connecting plate along a third direction. The clamping bolt is threadedly connected to the clamping bracket. One end of the clamping bolt near the third connecting plate can form a clamping gap with the third connecting plate. The edge of the calibration plate can be clamped in the clamping gap. The first direction, the second direction, and the third direction intersect each other.

[0013] Optionally, the central axis of the clamping bolt is parallel to the third direction.

[0014] Optionally, the clamping structure further includes an anti-wear pad, which is installed at one end of the clamping bolt near the third connecting plate.

[0015] Optionally, a plurality of clamping bolts are provided, and the plurality of clamping bolts are spaced apart along the second direction.

[0016] Optionally, the calibration assembly further includes a calibration slide rail and a calibration slider. The calibration slide rail is mounted on the first calibration bracket, and the calibration slider is mounted on the second calibration bracket. The calibration slider is slidably connected to the calibration slide rail along the second direction.

[0017] Optionally, the calibration slide rail is a linear slide rail.

[0018] Optionally, the calibration assembly further includes a locking structure mounted on the second calibration bracket, which locks the second calibration bracket to the first calibration bracket to restrict movement of the second calibration bracket relative to the first calibration bracket.

[0019] Optionally, the locking structure includes a locking member and a locking bolt. The locking member includes a first part and a second part connected to the first part. The first part is mounted on the second calibration bracket, and the second part is provided with a sliding hole extending along the second direction. The locking bolt passes through the sliding hole and is threadedly connected to the first calibration bracket.

[0020] On the other hand, this utility model embodiment provides a PCB testing device, which includes a workbench and the above-mentioned calibration device. A reference structure is provided on the workbench, the calibration device can be installed on the workbench, and the calibration board is provided with a comparison structure. The two calibration components cooperate with each other to make the orthographic projection of the comparison structure overlap with the orthographic projection of the reference structure in the same plane perpendicular to the third direction; The first direction, the second direction, and the third direction are perpendicular to each other.

[0021] According to an embodiment of the PCB testing equipment of this utility model, the calibration device, after the clamping structure cooperates with the second calibration bracket to clamp the edge of the calibration board, adjusts the position of the second calibration bracket relative to the first calibration bracket in at least one calibration component to align the calibration board. Compared with manually prying the glass calibration board, this calibration device can achieve more precise control over the alignment of the calibration board, reduce debugging time, and improve efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a calibration device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of a calibration component provided in an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the calibration component provided in one embodiment of the present invention from another angle.

[0023] The reference numerals in the accompanying drawings are as follows: 100. Calibration device; 10. Calibration components; 10a. First calibration components; 10b. Second calibration components; 20. Calibration plate; 1. First calibration bracket; 11. Base; 12. Nut seat; 2. Second calibration bracket; 21. First connecting plate; 22. Second connecting plate; 23. Third connecting plate; 3. Clamping structure; 31. Clamping bracket; 32. Clamping bolt; 33. Anti-wear pad; 4. Drive structure; 41. Drive bracket; 411. Connecting seat; 412. First connecting arm; 413. Second connecting arm; 414. Adapter groove; 42. Drive bolt; 43. Locking bolt; 44. Elastic element; 5. Calibrate the slide rails; 6. Calibrate the slider; 7. Limit screws; 8. Locking structure; 81. Locking component; 811. First part; 812. Second part; 82. Locking bolt; x, first direction; y, second direction; z, third direction. Detailed Implementation

[0024] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figures 1 to 4As shown, the calibration device 100 provided in this embodiment of the present invention includes a calibration plate 20 and two calibration components 10. The two calibration components 10 are arranged opposite each other along a first direction x. Each calibration component 10 includes a first calibration bracket 1, a second calibration bracket 2, and a clamping structure 3. The second calibration bracket 2 is movably connected to the first calibration bracket 1 along a second direction y. The clamping structure 3 is installed on the second calibration bracket 2. The clamping structure 3 is used to cooperate with the second calibration bracket 2 to clamp the edge of the calibration plate 20, and the clamping structure 3 can adjust the clamping force on the edge of the calibration plate 20.

[0026] The first direction x intersects the second direction y.

[0027] For example, the calibration plate 20 is a glass calibration plate, using high-purity soda glass or special ceramics as the substrate. It has an extremely low coefficient of thermal expansion (close to zero), maintaining sub-micron dimensional stability under extreme temperature changes. The surface is treated with nano-level frosting to eliminate reflective interference, ensuring that measurement accuracy is unaffected by ambient light. The glass calibration plate may be equipped with a reference structure, such as a cross-shaped reference line, a checkerboard pattern, or a dot matrix.

[0028] For ease of understanding, one of the two calibration components 10 can be designated as the first calibration component 10a, and the second calibration component 10b as the second calibration component 10b. The first calibration component 10a and the second calibration component 10b are arranged opposite each other along the first direction x. Specifically, the first calibration component 10a and the second calibration component 10b are mirror-symmetrically arranged, with their plane of symmetry perpendicular to the first direction x; or, the first calibration component 10a and the second calibration component 10b are centrally symmetrically arranged, with the line connecting their center of symmetry and the center of the calibration plate 20 parallel to the height direction of the calibration device 100 (i.e., the thickness direction of the calibration plate 20).

[0029] After the clamping structure 3 of each calibration component 10 engages with the second calibration bracket 2 to clamp the edge of the calibration plate 20, adjustments can be made in the following manner: When the position of the second calibration bracket 2 of the first calibration component 10a relative to the first calibration bracket 1 of the first calibration component 10a remains unchanged, and the position of the second calibration bracket 2 of the second calibration component 10b relative to the first calibration bracket 1 of the second calibration component 10b moves, the positions of the second calibration bracket 2 of the first calibration component 10a and the clamping structure 3 remain unchanged, and the second calibration bracket 2 of the second calibration component 10b moves synchronously with the clamping structure 3. Under the clamping action of each calibration component 10, the calibration plate 20 will undergo a slight deflection.

[0030] When the moving direction of the second calibration bracket 2 of the first calibration component 10a is consistent with that of the second calibration bracket 2 of the second calibration component 10b, the calibration plate 20 will move along the second direction y under the clamping action of each calibration component 10.

[0031] When the movement direction of the second calibration bracket 2 of the first calibration component 10a is opposite to that of the second calibration bracket 2 of the second calibration component 10b, the calibration plate 20 will undergo a slight deflection under the clamping action of each calibration component 10.

[0032] The calibration device 100 provided in this embodiment of the invention, after the clamping structure 3 cooperates with the second calibration bracket 2 to clamp the edge of the calibration plate 20, adjusts the position of the second calibration bracket 2 relative to the first calibration bracket 1 in at least one calibration component 10 to align the calibration plate 20. Compared with manually prying the glass calibration plate 20, the calibration device 100 can provide more precise control over the alignment of the calibration plate 20, reduce debugging time, and improve efficiency. In addition, since the clamping structure 3 can adjust the clamping force on the edge of the calibration plate 20, it can meet different clamping force requirements.

[0033] In one embodiment, such as Figures 2 to 4 As shown, the calibration component 10 also includes a drive structure 4, which is mounted on the second calibration bracket 2. The output end of the drive structure 4 is connected to the first calibration bracket 1. The drive structure 4 is used to drive the second calibration bracket 2 to move relative to the first calibration bracket 1 along the second direction y.

[0034] By setting up a drive structure 4 and driving the second calibration bracket 2 to move relative to the first calibration bracket 1 along the second direction y through the drive structure 4, the calibration device 100 can more accurately control the alignment of the calibration plate 20, and can reduce debugging time and improve efficiency.

[0035] In one embodiment, such as Figures 2 to 4 As shown, the first calibration bracket 1 includes a base 11 and a nut seat 12, with the nut seat 12 mounted on the base 11.

[0036] The drive structure 4 includes a drive bracket 41 and a drive bolt 42. The drive bracket 41 is mounted on the second calibration bracket 2. The first end of the drive bolt 42 is rotatably connected to the drive bracket 41, and the second end of the drive bolt 42 is threadedly connected to the nut seat 12. The central axis of the drive bolt 42 is parallel to the second direction y.

[0037] When driving the second calibration bracket 2, by rotating the drive bolt 42, the drive bracket 41 can move relative to the nut seat 12 in the second direction y under the threaded engagement of the nut seat 12 and the drive bolt 42. Then, the drive bracket 41 drives the second calibration bracket 2 to move relative to the first calibration bracket 1 in the second direction y, thereby driving the second calibration bracket 2.

[0038] In one embodiment, to facilitate the rotation of the drive bolt 42, a drive handle can be installed at the first end of the drive bolt 42. The drive handle can be a straight line shape, an elliptical shape, or another non-circular cross-section structure, facilitating the rotation of both the drive handle and the drive bolt 42. Alternatively, the drive handle can also be a circular cross-section structure. In this case, the radius of the drive handle's cross-section can be larger than the radius of the drive bolt 42's cross-section, further facilitating the rotation of both the drive handle and the drive bolt 42. It should be noted that the "cross-section" here refers to the cross-section perpendicular to the axis of the drive bolt 42.

[0039] In other embodiments not shown in the figure, the drive structure may also adopt other structures, such as drive cylinder, drive motor, etc. Taking drive cylinder as an example, when the drive structure includes drive cylinder, the cylinder barrel of drive cylinder can be installed on the first calibration bracket, the piston rod of drive cylinder extends out of the cylinder barrel of drive cylinder and is connected to the second calibration bracket, and the second calibration bracket is moved relative to the first calibration bracket by the piston rod of drive cylinder.

[0040] In one embodiment, such as Figures 2 to 4 As shown, the drive bracket 41 includes a connecting seat 411, a first connecting arm 412, and a second connecting arm 413. The connecting seat 411 is mounted on the second calibration bracket 2. The first connecting arm 412 and the second connecting arm 413 are connected to the connecting seat 411, and the first connecting arm 412 and the second connecting arm 413 are spaced apart along a first direction x. A transition groove is formed between the connecting seat 411, the first connecting arm 412, and the second connecting arm 413. The first end of the drive bolt 42 is rotatably connected to the transition groove 414.

[0041] The first connecting arm 412 is provided with a lock hole that communicates with the adapter groove 414.

[0042] The drive structure 4 also includes a locking bolt 43, which is threaded into the lock hole. The end of the locking bolt 43 near the adapter groove 414 can abut against the drive bolt 42.

[0043] After the second calibration bracket 2 has been adjusted relative to the first calibration bracket 1 along the second direction y, the locking bolt 43 can be rotated to make the locking bolt 43 abut against the driving bolt 42, thereby locking the driving bolt 42 and preventing the driving bolt 42 from rotating.

[0044] In other embodiments, a through hole may be provided in the first connecting arm so that the locking bolt passes through the through hole and is threadedly connected to the second connecting arm. The first end of the driving bolt is placed in the space enclosed by the locking bolt, the first connecting arm, the second connecting arm and the connecting seat. The driving bolt is locked by the clamping of the first connecting arm and the second connecting arm to prevent the driving bolt from rotating.

[0045] In one embodiment, such as Figures 2 to 4 As shown, the drive structure 4 also includes an elastic element 44, which is elastically connected between the second calibration bracket 2 and the nut seat 12. The elastic element 44 is used to apply a force close to each other to the second calibration bracket 2 and the nut seat 12 along the first direction x, or the elastic element 44 is used to apply a force away from each other to the second calibration bracket 2 and the nut seat 12 along the first direction x.

[0046] The elastic element 44 can be a spring.

[0047] By setting up an elastic element 44 and making the elastic element 44 elastically connected between the second calibration bracket 2 and the nut seat 12, the thread gap between the drive bolt 42 and the nut seat 12 is eliminated, ensuring higher adjustment accuracy.

[0048] In one embodiment, such as Figures 2 to 4 As shown, the second calibration bracket 2 includes a first connecting plate 21, a second connecting plate 22, and a third connecting plate 23. The first connecting plate 21 and the third connecting plate 23 are respectively connected to the opposite sides of the second connecting plate 22 along the first direction x. The first connecting plate 21 is slidably connected to the first calibration bracket 1 along the second direction y. The clamping structure 3 is installed on the second connecting plate 22. The clamping structure 3 is used to cooperate with the third connecting plate 23 to clamp the edge of the calibration plate 20.

[0049] At this time, the second calibration bracket 2 is composed of the first connecting plate 21, the second connecting plate 22 and the third connecting plate 23. The second calibration bracket 2 can be slidably connected to the first calibration bracket 1 through the first connecting plate 21, the clamping structure 3 can be installed through the second connecting plate 22, and the edge of the calibration plate 20 can be clamped through the third connecting plate 23 and the clamping structure 3, which facilitates the subsequent alignment of the calibration plate 20.

[0050] In one embodiment, such as Figures 2 to 4 As shown, the clamping structure 3 includes a clamping bracket 31 and a clamping bolt 32. The clamping bracket 31 is disposed opposite to the third connecting plate 23 along the third direction z. The clamping bolt 32 is threadedly connected to the clamping bracket 31. The end of the clamping bolt 32 near the third connecting plate 23 can form a clamping gap with the third connecting plate 23, and the edge of the calibration plate 20 can be clamped in the clamping gap.

[0051] The first direction x, the second direction y, and the third direction z intersect each other in pairs.

[0052] For example, the third direction z is parallel to the thickness direction of the calibration plate 20, the first direction x is parallel to the length direction of the calibration plate 20, and the second direction y is parallel to the width direction of the calibration plate 20. At this time, the first direction x, the second direction y and the third direction z are perpendicular to each other.

[0053] After the edge of the calibration plate 20 is placed on the third connecting plate 23, the distance between the clamping bolt 32 and the third connecting plate 23 can be adjusted by rotating the clamping bolt 32, that is, the height of the clamping gap can be adjusted until the clamping bolt 32 and the third connecting plate 23 abut together. At this time, the edge of the calibration plate 20 is clamped by the cooperation of the clamping bolt 32 and the third connecting plate 23.

[0054] In one embodiment, such as Figures 2 to 4 As shown, the central axis of the clamping bolt 32 is parallel to the third direction z, so that when the clamping bolt 32 is rotated, the clamping bolt 32 can move along the third direction z and move closer to or away from the third connecting plate 23.

[0055] For example, the larger the distance between the clamping bolt 32 and the third connecting plate 23, the smaller the clamping force on the edge of the calibration plate 20; the smaller the distance between the clamping bolt 32 and the third connecting plate 23, the greater the clamping force on the edge of the calibration plate 20.

[0056] In one embodiment, such as Figures 2 to 4 As shown, the clamping structure 3 also includes an anti-wear pad 33, which is installed at one end of the clamping bolt 32 near the third connecting plate 23.

[0057] The anti-abrasion pad 33 can be made of polyurethane or other materials that can prevent damage to the calibration plate 20, such as silicone.

[0058] For example, the anti-wear pad 33 can be glued to one end of the clamping bolt 32 near the third connecting plate 23, or the anti-wear pad 33 can be sleeved on one end of the clamping bolt 32 near the third connecting plate 23.

[0059] When the clamping bolt 32 is rotated and moves closer to the third connecting plate 23 along the third direction z, the anti-wear pad 33 will contact the calibration plate 20 before the clamping bolt 32. At the same time, the anti-wear pad 33 can prevent the clamping bolt 32 from directly contacting the calibration plate 20, so as to protect the calibration plate 20 and avoid damage to the calibration plate 20.

[0060] In one embodiment, to facilitate the rotation of the clamping bolt 32, a clamping handle can be installed at the end of the clamping bolt 32 away from the third connecting plate 23. This clamping handle can be a straight line shape, an elliptical shape, or another non-circular cross-section structure, facilitating the rotation of both the clamping handle and the clamping bolt 32. Alternatively, the clamping handle can also be a circular cross-section structure. In this case, the radius of the clamping handle's cross-section can be larger than the radius of the clamping bolt 32's cross-section, further facilitating the rotation of both the clamping handle and the clamping bolt 32. It should be noted that the "cross-section" here refers to the cross-section perpendicular to the axis of the clamping bolt 32.

[0061] In one embodiment, such as Figures 2 to 4 As shown, multiple clamping bolts 32 are provided, and the multiple clamping bolts 32 are spaced apart along the second direction y.

[0062] By setting multiple clamping bolts 32, multiple positions on the edge of the calibration plate 20 can be clamped, making the clamping more stable and subsequent fine-tuning more precise.

[0063] In other embodiments not shown in the figure, the clamping structure may also adopt other structures, such as clamping cylinders, clamping motors, etc. Taking a clamping cylinder as an example, when the clamping structure includes a clamping cylinder, the cylinder barrel of the clamping cylinder can be installed on the second calibration bracket, and the piston rod of the clamping cylinder extends out of the end of the cylinder barrel of the clamping cylinder facing the third connecting plate. By cooperating with the third connecting plate, the edge of the calibration plate can be clamped.

[0064] In one embodiment, such as Figures 2 to 4 As shown, the calibration assembly 10 also includes a calibration slide rail 5 and a calibration slider 6. The calibration slide rail 5 is mounted on the first calibration bracket 1, and the calibration slider 6 is mounted on the second calibration bracket 2. The calibration slider 6 is slidably connected to the calibration slide rail 5 along the second direction y.

[0065] By installing a calibration slide rail 5 on the first calibration bracket 1 and a calibration slider 6 on the second calibration bracket 2, and making the calibration slider 6 slide along the second direction y to be connected to the calibration slide rail 5, the second calibration bracket 2 can slide relative to the first calibration bracket 1 along the second direction y.

[0066] In one embodiment, such as Figures 2 to 4 As shown, a limiting screw 7 can be installed on the first calibration bracket 1 at the position corresponding to the end of the calibration slide rail 5. The limiting screw 7 prevents the calibration slider 6 from disengaging from the calibration slide rail 5 along the second direction y.

[0067] In one embodiment, such as Figures 2 to 4 As shown, the calibration slide rail 5 is a linear slide rail so that the second calibration bracket 2 can move linearly along the second direction y.

[0068] In one embodiment, such as Figures 2 to 4 As shown, the calibration assembly 10 also includes a locking structure 8, which is mounted on the second calibration bracket 2. The locking structure 8 can lock the second calibration bracket 2 to the first calibration bracket 1 to restrict the movement of the second calibration bracket 2 relative to the first calibration bracket 1.

[0069] After the second calibration bracket 2 has completed its position adjustment, it can be locked to the first calibration bracket 1 by the locking structure 8 to restrict the free movement of the second calibration bracket 2 relative to the first calibration bracket 1.

[0070] In one embodiment, such as Figures 2 to 4As shown, the locking structure 8 includes a locking member 81 and a locking bolt 82. The locking member 81 includes a first part 811 and a second part 812 connected to the first part 811. The first part 811 is mounted on the second calibration bracket 2. The second part 812 is provided with a sliding hole 8121 extending along the second direction y. The locking bolt 82 passes through the sliding hole 8121 and is threadedly connected to the first calibration bracket 1. Specifically, the locking bolt 82 passes through the sliding hole 8121 and is threadedly connected to the base 11.

[0071] For example, the locking member 81 has an "L" shaped cross section, with the first part 811 perpendicular to the second part 812, so that the first part 811 can fit with the second calibration bracket 2 and the second part 812 can fit with the first calibration bracket 1.

[0072] The locking bolt 82 includes a nut portion and a screw portion. One end of the screw portion is connected to the nut portion, and the other end of the screw portion passes through the sliding hole 8121 and is threadedly connected to the first calibration bracket 1. The second part 812 is located between the nut portion and the base 11. When the locking bolt 82 is rotated, the nut portion and the second part 812 can be moved closer and closer to the base 11 until the nut portion and the second part 812 abut against each other, and the second part 812 abuts against the base 11. At this time, the friction generated when the second part 812 abuts against the base 11 prevents the second part 812 from moving relative to the base 11 in the second direction y, thereby restricting the free movement of the second calibration bracket 2 relative to the first calibration bracket 1.

[0073] The operation steps of the calibration device 100 provided in this embodiment of the utility model are as follows: (1) The first calibration bracket 1 is fixed to the worktable of the PCB test equipment by screws.

[0074] (2) The calibration plate 20 is placed on the third connecting plate 23 of the second calibration bracket 2.

[0075] (3) Adjust the clamping bolt 32 to make the anti-wear pad 33 press against the calibration plate 20.

[0076] (4) By adjusting the drive bolt 42 to rotate clockwise or counterclockwise, the drive bolt moves forward or backward, and at the same time drives the second calibration bracket 2 to move forward or backward along the second direction y, so as to align the calibration plate 20.

[0077] (5) After adjusting and aligning the calibration plate 20, tighten the locking bolt 43 and secure the drive bolt 42.

[0078] (6) After adjusting and aligning the calibration plate 20, tighten the locking bolt 82 to secure the locking part 81. The locking part 81 is connected to the second calibration bracket 2 and the locking part 81 is secured to the first calibration bracket 1. Thus, the entire glass calibration device 100 is fixed. After the PCB testing equipment aligns the calibration plate 20, the positioning accuracy of the equipment is corrected by software compensation.

[0079] This utility model embodiment also provides a PCB testing device, which includes a workbench and the above-mentioned calibration device 100. A reference structure is provided on the workbench, the calibration device 100 can be installed on the workbench, and the calibration board 20 is provided with a comparison structure.

[0080] The two calibration components 10 cooperate with each other to make the orthographic projection of the control structure overlap with the orthographic projection of the reference structure in the same plane perpendicular to the third direction z.

[0081] The first direction x, the second direction y, and the third direction z are all perpendicular to each other.

[0082] For example, the first calibration bracket 1 can be fixed to the workbench with screws.

[0083] The reference structure can be a cross-shaped reference line, and the comparison structure can be a cross-shaped comparison line.

[0084] The PCB testing equipment provided in this embodiment of the invention includes a calibration device 100 that, after the clamping structure 3 and the second calibration bracket 2 cooperate to clamp the edge of the calibration board 20, adjusts the position of the second calibration bracket 2 relative to the first calibration bracket 1 in at least one calibration component 10 to align the calibration board 20. Compared to manually prying the glass calibration board 20, this calibration device 100 allows for more precise control over the alignment of the calibration board 20, reduces debugging time, and improves efficiency.

[0085] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A calibration device, characterized in that, The device includes a calibration plate and two calibration components. The two calibration components are arranged opposite to each other along a first direction. Each calibration component includes a first calibration bracket, a second calibration bracket, and a clamping structure. The second calibration bracket is movably connected to the first calibration bracket along a second direction. The clamping structure is mounted on the second calibration bracket and is used to cooperate with the second calibration bracket to clamp the edge of the calibration plate. The clamping structure can adjust the clamping force on the edge of the calibration plate. The first direction intersects with the second direction.

2. The calibration device according to claim 1, characterized in that, The calibration component further includes a drive structure, which is mounted on the second calibration bracket. The output end of the drive structure is connected to the first calibration bracket, and the drive structure is used to drive the second calibration bracket to move relative to the first calibration bracket along the second direction.

3. The calibration device according to claim 2, characterized in that, The first calibration bracket includes a base and a nut seat, wherein the nut seat is mounted on the base; The drive structure includes a drive bracket and a drive bolt. The drive bracket is mounted on the second calibration bracket. The first end of the drive bolt is rotatably connected to the drive bracket, and the second end of the drive bolt is threaded to the nut seat. The central axis of the drive bolt is parallel to the second direction.

4. The calibration device according to claim 3, characterized in that, The drive bracket includes a connecting seat, a first connecting arm, and a second connecting arm. The connecting seat is mounted on the second calibration bracket. The first connecting arm and the second connecting arm are connected to the connecting seat, and the first connecting arm and the second connecting arm are spaced apart along the first direction. A transition groove is formed between the connecting seat, the first connecting arm, and the second connecting arm. The first end of the drive bolt is rotatably connected to the transition groove. The first connecting arm is provided with a lock hole that communicates with the adapter groove; The drive structure also includes a locking bolt, which is threaded into the locking hole, and the end of the locking bolt near the adapter groove can abut against the drive bolt.

5. The calibration device according to claim 3, characterized in that, The drive structure also includes an elastic element, which is elastically connected between the second calibration bracket and the nut seat.

6. The calibration device according to claim 1, characterized in that, The second calibration bracket includes a first connecting plate, a second connecting plate, and a third connecting plate. The first connecting plate and the third connecting plate are respectively connected to opposite sides of the second connecting plate along the first direction. The first connecting plate is slidably connected to the first calibration bracket along the second direction. The clamping structure is installed on the second connecting plate and is used to cooperate with the third connecting plate to clamp the edge of the calibration plate.

7. The calibration device according to claim 6, characterized in that, The clamping structure includes a clamping bracket and a clamping bolt. The clamping bracket is disposed opposite to the third connecting plate along a third direction. The clamping bolt is threadedly connected to the clamping bracket. One end of the clamping bolt near the third connecting plate can form a clamping gap with the third connecting plate. The edge of the calibration plate can be clamped in the clamping gap. The first direction, the second direction, and the third direction intersect each other.

8. The calibration device according to claim 7, characterized in that, The central axis of the clamping bolt is parallel to the third direction.

9. The calibration device according to claim 7, characterized in that, The clamping structure also includes an anti-wear pad, which is installed at one end of the clamping bolt near the third connecting plate.

10. The calibration device according to claim 7, characterized in that, Multiple clamping bolts are provided, and the multiple clamping bolts are spaced apart along the second direction.

11. The calibration device according to claim 1, characterized in that, The calibration assembly further includes a calibration slide rail and a calibration slider. The calibration slide rail is mounted on the first calibration bracket, and the calibration slider is mounted on the second calibration bracket. The calibration slider is slidably connected to the calibration slide rail along the second direction.

12. The calibration device according to claim 11, characterized in that, The calibration slide rail is a linear slide rail.

13. The calibration device according to claim 1, characterized in that, The calibration assembly further includes a locking structure mounted on the second calibration bracket. The locking structure is capable of locking the second calibration bracket to the first calibration bracket to restrict the movement of the second calibration bracket relative to the first calibration bracket.

14. The calibration device according to claim 13, characterized in that, The locking structure includes a locking member and a locking bolt. The locking member includes a first part and a second part connected to the first part. The first part is mounted on the second calibration bracket. The second part is provided with a sliding hole extending along the second direction. The locking bolt passes through the sliding hole and is threadedly connected to the first calibration bracket.

15. A PCB testing device, characterized in that, The device includes a workbench and a calibration device as described in any one of claims 1-14, wherein a reference structure is provided on the workbench, the calibration device can be mounted on the workbench, and the calibration plate is provided with a comparison structure. The two calibration components cooperate with each other to make the orthographic projection of the comparison structure overlap with the orthographic projection of the reference structure in the same plane perpendicular to the third direction; The first direction, the second direction, and the third direction are perpendicular to each other.

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