Welding spot tension detection device for welding lead type MLCC product

Abstract

The utility model discloses a welding spot tension detection device for welding a lead-type MLCC product, and the device comprises a bottom plate which is provided with a vertical column at one side; the product clamping assembly is installed on the bottom plate and used for clamping an MLCC product; the tension meter assembly is installed on the stand column in a lifting mode through the linear motion module, the bottom end of the tension meter assembly is connected with the lead clamping assembly through the spring self-adaption assembly, and the lead clamping assembly is used for clamping a lead of an MLCC product. The device is simple in structure and convenient to operate, can realize accurate testing of the welding spot tension of the lead of the MLCC product, effectively avoids the problem that the strength cannot be controlled due to manual testing, and greatly improves the testing efficiency of the welding spot tension of the lead of the MLCC product. Meanwhile, through the spring self-adaptive assembly, continuous force parameter changes corresponding to tensioning of the lead of the MLCC product can be matched, sudden change of force generated by rigid connection is avoided, and the stability of mechanical strength detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead type MLCC production, and in particular to a solder joint tension detection device for welding lead type MLCC products. Background Art

[0002] In the design and manufacture of PCB circuit boards for electronic devices, lead-type MLCC products (100) are one of the important electronic components. They are composed of a single or multiple MLCC products (100) connected in parallel, and metal leads (101) are welded at both ends of the terminal electrodes to adapt to specific spatial layout and technical parameter requirements (such as Figure 1 In the production process of leaded MLCC products (100), it is very important to ensure the mechanical strength of the solder joints, because the fracture of the solder joints may lead to the failure of the entire assembly.

[0003] At present, the mechanical strength test of lead-type MLCC solder joints mainly relies on manual operation. The specific method is to place the MLCC product (100) and the lead (101) on a simple fixture, then manually apply tension and read and record the data using a tensile gauge. However, this method has some problems: first, the strength is difficult to control during manual testing, which can easily lead to inaccurate test results; second, the operation process is relatively cumbersome and inefficient. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a solder joint tension detection device for welding lead type MLCC products.

[0005] The utility model discloses a solder joint tension detection device for welding lead type MLCC products, comprising:

[0006] a base plate having a column mounted on one side thereof;

[0007] A product clamping component mounted on the base plate for clamping MLCC products;

[0008] The dynamometer assembly is installed on the column in a liftable manner through a linear motion module, and its bottom end is connected to a lead clamping assembly through a spring adaptive assembly, and the lead clamping assembly is used to clamp the leads of the MLCC product.

[0009] As a further improvement of the utility model, the product clamping assembly includes a clamp seat, a clamp track and a product pressing block;

[0010] The clamp track is installed on the base plate and is located on a side away from the column; the clamp seat is installed on the clamp track and can move in a direction toward and away from the column; the product pressing block is installed in the clamp seat, and the product pressing block can cooperate with the clamp seat to clamp and release the MLCC product through a first adjustment piece.

[0011] As a further improvement of the present invention, the top of the clamp seat is concave to form an inner groove, and the extension direction of the inner groove is perpendicular to the moving direction of the clamp seat; a guide shaft is installed between the two side walls of the inner groove, and the product pressing block is placed in the inner groove and sleeved on the guide shaft; the product pressing block can be moved along the guide shaft toward the column through the first adjusting member; a return spring is also sleeved on the guide shaft between the side wall of the inner groove close to the column and the product pressing block.

[0012] As a further improvement of the utility model, the inner wall of the inner groove on one side close to the column bulges inward to form a pressing portion that cooperates with the product pressing block; a plurality of ridges are provided up and down along the length direction of the product pressing block on one side close to the pressing portion; the product pressing block can be moved along the guide shaft toward the pressing portion through the first adjusting member to cooperate with the pressing portion to press the MLCC product.

[0013] As a further improvement of the utility model, the linear motion module is installed on the column, and includes a servo motor and a moving part; the servo motor can drive the moving part to move up and down in the vertical direction; the dynamometer assembly is installed on the moving part.

[0014] As a further improvement of the present invention, the dynamometer assembly includes a module adapter plate, a dynamometer fixing plate and a dynamometer; the module adapter plate is installed on the linear motion module, and the upper part of the dynamometer fixing plate is rotatably installed on the module adapter plate; the upper part of the dynamometer is installed on the dynamometer fixing plate, and the spring adaptive assembly is fixedly installed on the bottom end of the dynamometer.

[0015] As a further improvement of the utility model, the spring adaptive component includes a spring sleeve, a spring sealing plate and a first hook;

[0016] The top of the spring sleeve is connected to the bottom end of the dynamometer assembly, and the spring sealing plate is installed at the bottom of the spring sleeve; the straight rod portion of the first hook passes through the spring sealing plate and is placed in the spring sleeve, and a locking nut is installed at the end of the straight rod portion; a spring is sleeved on the straight rod portion located between the locking nut and the spring sealing plate, and the hook portion of the first hook is connected to the lead clamping assembly.

[0017] As a further improvement of the utility model, the lead clamping assembly includes a clamping portion and a second hook, and the second hook cooperates with the first hook;

[0018] The straight rod portion of the second hook is installed at the top end of the clamping portion, and the bottom end of the clamping portion is concave to form a cavity for the lead wire of the MLCC product to pass through. A second adjusting member is provided on one side of the clamping portion; one end of the second adjusting member passes through the clamping portion and is placed in the cavity, and presses the lead wire in the cavity against an inner wall on one side of the cavity.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model has a simple structure and is easy to operate. By setting a product clamping component, a tensile gauge component, a spring adaptive component, and a lead clamping component, and cooperating with a linear motion module, accurate testing of the tension of the solder joints of the MLCC product leads can be achieved, effectively avoiding the problem of uncontrollable force due to manual testing, and greatly improving the testing efficiency of the tension of the solder joints of the MLCC product leads.

[0021] The utility model can match the continuous force parameter changes corresponding to the lead tensioning of the MLCC product by setting a spring adaptive component, avoid the sudden change of force size caused by the rigid connection, and improve the stability of mechanical strength detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of MLCC products;

[0023] Figure 2 It is a structural schematic diagram of a solder joint tension detection device for welding lead-type MLCC products disclosed in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the bottom plate and column structure of a solder joint tension detection device for soldering lead-type MLCC products disclosed in one embodiment of the utility model;

[0025] Figure 4 A schematic diagram of the structure of a product clamping assembly of a solder joint tension detection device for soldering lead-type MLCC products disclosed in one embodiment of the utility model;

[0026] Figure 5 It is a structural schematic diagram of a linear motion module of a solder joint tension detection device for soldering lead-type MLCC products disclosed in one embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the structure of a tensile gauge assembly of a solder joint tensile force detection device for soldering lead-type MLCC products disclosed in an embodiment of the utility model;

[0028] Figure 7 A schematic diagram of the structure of a spring adaptive component of a solder joint tension detection device for soldering lead-type MLCC products disclosed in one embodiment of the utility model;

[0029] Figure 8 The present invention is a schematic structural diagram of a lead clamping assembly of a solder joint tension detection device for welding lead-type MLCC products disclosed in an embodiment of the present invention.

[0030] In the figure:

[0031] 100. MLCC products; 101. Leads; 1. Bottom plate; 2. Columns; 3. Ribs; 4. Product clamping components; 4-1. Clamp rails; 4-2. Clamp seat; 4-21. Inner groove; 4-22. Pressing part; 4-3. Guide shaft; 4-4. Product pressing block; 4-41. Ridge; 4-5. Reset spring; 4-6. First adjusting member; 5. Tension gauge assembly; 5-1. Module adapter plate; 5-2. Tension gauge fixing plate; 5-3. Tension gauge Force gauge; 5-4, contour pin screw; 6, linear motion module; 6-1, moving part; 6-2, servo motor; 7, spring adaptive assembly; 7-1, spring sleeve; 7-2, spring sealing plate; 7-3, first hook; 7-4, locking nut; 7-5, spring; 8, lead clamping assembly; 8-1, first clamping block; 8-2, second clamping block; 8-3, second hook; 8-4, locking piece; 8-5, second adjusting piece; 8-6, chamber. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0036] like Figure 2 As shown, according to the utility model, a solder joint tension detection device for welding lead-type MLCC products includes a base plate 1, a column 2, a product clamping assembly 4, a tensile gauge assembly 5, a linear motion module 6, a spring adaptive assembly 7 and a lead clamping assembly 8, wherein the column 2 is installed on one side of the base plate 1, the product clamping assembly 4 is installed on the base plate 1, and the product clamping assembly 4 is used to clamp the MLCC product 100; the linear motion module 6 is fixedly installed on the column 2, and the tensile gauge assembly 5 is installed on the column 2 in a liftable manner through the linear motion module 6, and the bottom end of the tensile gauge assembly 5 is connected to the lead clamping assembly 8 through the spring adaptive assembly 7, and the lead clamping assembly 8 is used to clamp the lead 101 of the MLCC product 100.

[0037] In this embodiment, the structure is simple and the operation is convenient. By setting the product clamping component 4, the tensile gauge component 5, the spring adaptive component 7, the lead clamping component 8, and cooperating with the linear motion module 6, the accurate test of the tension of the solder joints of the MLCC product leads can be achieved, effectively avoiding the problem of uncontrollable force due to manual testing, and greatly improving the test efficiency of the tension of the solder joints of the MLCC product leads.

[0038] Specific:

[0039] like Figure 3 As shown, in the above embodiment, preferably, a reinforcing rib 3 is also installed on the side of the base plate 1 corresponding to the column 2. The reinforcing rib 3, the base plate 1 and the column 2 together constitute the installation base of the weld point tensile detection device. The setting of the reinforcing rib 3 can ensure the bearing capacity of the column 2.

[0040] like Figure 4As described above, in the above embodiment, preferably, the product clamping assembly 4 includes a clamp rail 4-1, a clamp seat 4-2, a guide shaft 4-3, a product pressure block 4-4, a return spring 4-5 and a first adjustment member 4-6; wherein the clamp rail 4-1 is installed on the base plate 1 and is located on the side away from the column 2; the clamp seat 4-2 is installed on the clamp rail 4-1 and can move in a direction toward and away from the column 2; the product pressure block 4-4 is installed in the clamp seat 4-2, and the product pressure block 4-4 can cooperate with the clamp seat 4-2 through the first adjustment member 4-6 to clamp and release the MLCC product 100.

[0041] In the above embodiment, preferably, the clamp rail 4-1 includes a first clamp rail and a second clamp rail respectively arranged on both sides of the clamp seat 4-2, and the middle part of the first clamp rail and the second clamp rail close to the clamp seat 4-2 protrudes inward to form a track for the clamp seat 4-2 to be placed and slide.

[0042] In the above embodiment, preferably, the top of the clamp seat 4-2 is concave to form an inner groove 4-21, and the extension direction of the inner groove 4-21 is perpendicular to the moving direction of the clamp seat 4-2; a guide shaft 4-3 is installed between the two side walls of the inner groove 4-21. In this embodiment, two guide shafts 4-3 are provided, and the two guide shafts 4-3 are respectively provided between the two side walls at both ends of the inner groove 4-21; the product pressing block 4-4 is placed in the inner groove 4-21 and is sleeved on the two guide shafts 4-3; the product pressing block 4-4 can be moved along the guide shaft 4-3 toward the column through the first adjusting member 4-6; a return spring 4-5 is also sleeved on the guide shaft 4-3 between the side wall of the inner groove 4-21 close to the column 2 and the product pressing block 4-4.

[0043] In the above embodiment, preferably, the inner wall of the inner groove 4-21 on one side close to the column 2 bulges inward to form a pressing portion 4-22 that cooperates with the product pressing block 4-4; a plurality of ridges 4-41 are provided up and down along the length direction of the product pressing block 4-4 on one side close to the pressing portion 4-22; the product pressing block 4-4 can be moved along the guide shaft 4-3 toward the pressing portion 4-22 through the first adjusting member 4-6 to cooperate with the pressing portion 4-22 to press the MLCC product 100.

[0044] In the above embodiment, preferably, the first adjusting member 4-6 includes two plum screws, and the screw ends of the two plum screws pass through the side wall of the inner groove 4-21 away from the pressing part 4-22 and are fixedly connected to the product block 4-4. The side wall of the inner groove 4-21 away from the pressing part 4-22 is provided with threaded holes corresponding to the positions where the screw ends of the two plum screws pass through; during actual adjustment, by rotating the two plum screws, the product block 4-4 can be pushed to move along the guide shaft 4-3 toward the pressing part 4-22 through the cooperation of the screws and the threaded holes.

[0045] like Figure 5 As shown, in the above embodiment, preferably, the linear motion module 6 is installed on the column 2, which includes a servo motor 6-2 and a moving component 6-1; the servo motor 6-2 can drive the moving component 6-1 to move up and down in the vertical direction; the dynamometer assembly 5 is installed on the moving component 6-1.

[0046] like Figure 6 As shown, in the above embodiment, preferably, the dynamometer assembly 5 includes a module adapter plate 5-1, a dynamometer fixing plate 5-2 and a dynamometer 5-3; the module adapter plate 5-1 is mounted on the moving component 6-1 of the linear motion module 6, the upper part of the dynamometer fixing plate 5-2 is rotatably mounted on the module adapter plate 5-1 through the equal height pin screw 5-4, the upper part of the dynamometer 5-3 is mounted on the dynamometer fixing plate 5-2, and the bottom end of the dynamometer 5-3 is fixedly mounted with a spring adaptive assembly 7. The setting of the equal height pin screw 5-4 allows the dynamometer fixing plate 5-2 to rotate around the equal height pin screw 5-4, so that the dynamometer assembly 5 naturally moves downward under the action of gravity in the normal state.

[0047] like Figure 7 As shown, in the above embodiment, preferably, the spring adaptive component 7 includes a spring sleeve 7-1, a spring sealing plate 7-2, a first hook 7-3, a locking nut 7-4, and a spring 7-5; wherein, the top of the spring sleeve 7-1 is connected to the bottom end of the dynamometer 5-3 in the dynamometer assembly 5, and the bottom of the spring sleeve 7-1 is installed with a spring sealing plate 7-2 by bolts; the straight rod portion of the first hook 7-3 passes through the spring sealing plate 7-2 and is placed in the spring sleeve 7-1, and the end of the straight rod portion of the first hook 7-3 is installed with a locking nut 7-4; the straight rod portion between the locking nut 7-4 and the spring sealing plate 7-2 is sleeved with a spring 7-5, and the hook portion of the first hook 7-3 is connected to the lead clamping component 8. In this embodiment, by setting the spring adaptive component 7, the continuous force parameter change corresponding to the tightening of the lead 101 of the MLCC product 100 can be matched, avoiding the sudden change of force size caused by the rigid connection, and improving the stability of mechanical strength detection.

[0048] like Figure 8 As shown, in the above embodiment, preferably, the lead clamping assembly includes a clamping portion and a second hook 8-3, and the second hook 8-3 cooperates with the first hook 7-3; the straight rod portion of the second hook 8-3 is installed at the top of the clamping portion, and the bottom end of the clamping portion is concave to form a cavity 8-6 for the lead 101 of the MLCC product 100 to pass through, and a second adjusting member 8-5 is provided on one side of the clamping portion; one end of the second adjusting member 8-5 passes through the clamping portion and is placed in the cavity 8-6, and presses the lead 101 in the cavity 8-6 against an inner wall on one side of the cavity 8-6.

[0049] In the above embodiment, preferably, the clamping portion includes a first clamping block 8-1 and a second clamping block 8-2, wherein the middle and lower part of a side wall of the first clamping block 8-1 is recessed inward to form an inner concave portion, the shape of the inner concave portion is adapted to the shape of the second clamping block 8-2, and the second clamping block 8-2 is embedded and installed in the inner concave portion, and a chamber 8-6 for inserting the lead 101 is formed between the first clamping block 8-1 and the second clamping block 8-2, and a second adjusting member 8-5 is provided on the outer side of the second clamping block 8-2. In this embodiment, the second adjusting member 8-5 is a plum screw, and the screw end of the plum screw passes through the second clamping block 8-2 and is placed in the chamber 8-6 to press the lead 101 against the inner wall of one side of the chamber 8-6. The second clamping block 8-2 is provided with a threaded hole corresponding to the screw end of the plum screw.

[0050] The welding point tension detection device disclosed by the utility model can also be applied to the mechanical property test of other products.

[0051] The method of using this embodiment is as follows:

[0052] 1) Prepare the lead-shaped MLCC product 100 to be tested, and manually bend one of the leads 101 of the MLCC product 100 to Figure 8 state;

[0053] 2) Clamp the lead of the MLCC product 100 by the lead clamping assembly 8, and hang the lead clamping assembly 8 on the spring adaptive assembly 7 by the second hook 8-3;

[0054] 3) Adjust the linear motion module 6 so that the upper end of the main body of the MLCC product 100 is flush with the upper surface of the fixture seat 4-2;

[0055] 4) Manually adjust the position of the fixture seat 4-2 on the fixture track 4-1, and clamp the main body of the MLCC product 100 with the product pressing block 4-4 and the pressing part 4-22 through the plum screw, and make the lead 101 to be tested in a vertical state;

[0056] 5) Control the servo motor 6-2 of the linear motion module 6 to start the test.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A solder joint tension detection device for welding lead type MLCC products, characterized in that: include: a base plate having a column mounted on one side thereof; A product clamping component mounted on the base plate for clamping MLCC products; The dynamometer assembly is installed on the column in a liftable manner through a linear motion module, and its bottom end is connected to a lead clamping assembly through a spring adaptive assembly, and the lead clamping assembly is used to clamp the leads of the MLCC product.

2. The welding point tension detection device according to claim 1, characterized in that: The product clamping assembly includes a clamp seat, a clamp track and a product pressing block; The clamp track is installed on the base plate and is located on a side away from the column; the clamp seat is installed on the clamp track and can move in a direction toward and away from the column; the product pressing block is installed in the clamp seat, and the product pressing block can cooperate with the clamp seat to clamp and release the MLCC product through a first adjustment piece.

3. The welding point tension detection device according to claim 2, characterized in that: The top of the clamp seat is concave to form an inner groove, and the extension direction of the inner groove is perpendicular to the moving direction of the clamp seat; a guide shaft is installed between the two side walls of the inner groove, and the product pressing block is placed in the inner groove and sleeved on the guide shaft; the product pressing block can move along the guide shaft toward the column through the first adjusting member; a return spring is also sleeved on the guide shaft between the side wall of the inner groove close to the column and the product pressing block.

4. The welding point tension detection device according to claim 3, characterized in that: The inner wall of the inner groove on one side close to the column bulges inward to form a pressing portion that cooperates with the product pressing block; a plurality of ridges are provided up and down along the length direction of the product pressing block on one side close to the pressing portion; the product pressing block can be moved along the guide shaft toward the pressing portion through the first adjusting member to cooperate with the pressing portion to press the MLCC product.

5. The welding point tension detection device according to claim 1, characterized in that: The linear motion module is installed on the column, and comprises a servo motor and a moving part; the servo motor can drive the moving part to move up and down in the vertical direction; the dynamometer assembly is installed on the moving part.

6. The welding point tension detection device according to claim 1, characterized in that: The dynamometer assembly includes a module adapter plate, a dynamometer fixing plate and a dynamometer; the module adapter plate is installed on the linear motion module, and the upper part of the dynamometer fixing plate is rotatably installed on the module adapter plate; the upper part of the dynamometer is installed on the dynamometer fixing plate, and the spring adaptive assembly is fixedly installed on the bottom end of the dynamometer.

7. The welding point tension detection device according to claim 1, characterized in that: The spring adaptive component includes a spring sleeve, a spring sealing plate and a first hook; The top of the spring sleeve is connected to the bottom end of the dynamometer assembly, and the spring sealing plate is installed at the bottom of the spring sleeve; the straight rod portion of the first hook passes through the spring sealing plate and is placed in the spring sleeve, and a locking nut is installed at the end of the straight rod portion; a spring is sleeved on the straight rod portion located between the locking nut and the spring sealing plate, and the hook portion of the first hook is connected to the lead clamping assembly.

8. The welding point tension detection device according to claim 7, characterized in that: The lead clamping assembly includes a clamping portion and a second hook, and the second hook cooperates with the first hook; The straight rod portion of the second hook is installed at the top end of the clamping portion, and the bottom end of the clamping portion is concave to form a cavity for the lead wire of the MLCC product to pass through. A second adjusting member is provided on one side of the clamping portion; one end of the second adjusting member passes through the clamping portion and is placed in the cavity, and presses the lead wire in the cavity against an inner wall on one side of the cavity.

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