Power module marking tool

Abstract

The utility model relates to a power module marking tool, and relates to the field of power module production. According to the technical scheme, the device comprises an X-direction moving mechanism, a Y-direction moving mechanism arranged on the X-direction moving mechanism, a rotating platform arranged on the Y-direction moving mechanism, a positioning assembly arranged on the rotating platform and a marking jig arranged on the positioning assembly. Wherein the marking jig and the positioning assembly can be rapidly disassembled and assembled, the marking jig comprises a jig body, the jig body is provided with a jig cavity matched with the power module, a fool-proof rod corresponding to a glue filling hole of the power module is arranged in the jig cavity, and a knob plunger used for fixing the power module is further arranged on the side, located on the jig cavity, of the jig body. Under the condition, the rapid remodeling of the power module can be realized, and the production efficiency is improved; and moreover, the power module can be prevented from being reversely placed, and the yield is improved.

Description

Technical Field

[0001] This utility model relates to the field of power module manufacturing technology, and in particular to a marking fixture for power modules. Background Technology

[0002] Power modules, as key components formed by encapsulating power electronic devices according to their corresponding functions, play a vital role in power electronics, frequency converters, and high-frequency power supply systems. In recent years, with the rapid development of the hybrid vehicle market, the demand for high-performance, low-risk electrical components has exploded. Market research data shows that users are increasingly concerned about the safety performance of hybrid vehicles in high-voltage application scenarios. To effectively meet the core demands of automakers and consumers, and to open up new development space for future production, significantly improving the production efficiency of power modules has become a crucial issue that the industry urgently needs to address.

[0003] Laser marking is an indispensable and crucial step in the production process of power modules. Currently, the industry commonly uses bolts to fix the marking fixture to the marking platform. However, this traditional method has significant drawbacks: during product changeovers, operators need to spend a considerable amount of time disassembling the bolts, and after replacing the marking fixture, precise repositioning is required. The entire process is cumbersome and complex, severely extending the changeover cycle and significantly reducing production efficiency. Furthermore, during manual operation, due to the lack of effective error prevention mechanisms, operators are prone to placing products in the wrong orientation, leading to an increased marking defect rate. This not only affects product quality but also significantly increases production costs. Summary of the Invention

[0004] The purpose of this invention is to provide a power module marking fixture to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A power module marking fixture includes: an X-direction moving mechanism, a Y-direction moving mechanism disposed on the X-direction moving mechanism, a rotating platform disposed on the Y-direction moving mechanism, a positioning component disposed on the rotating platform, and a marking fixture disposed on the positioning component;

[0007] The marking fixture can be quickly assembled and disassembled with the positioning component. The marking fixture includes a fixture body with a fixture cavity adapted to the power module. The fixture cavity has a foolproof rod corresponding to the glue-filling hole of the power module. The fixture body also has a knob plunger for fixing the power module on one side of the fixture cavity.

[0008] In one possible implementation, the positioning component includes:

[0009] A positioning seat, which is mounted on the rotating platform;

[0010] A recessed positioning groove, formed on the positioning seat, is used for quick positioning of the fixture body; and

[0011] A quick-release clamp is located at the edge of the recessed positioning groove and is used for quick assembly and disassembly of the fixture body.

[0012] In one possible implementation, there are two quick-press clamps, located near both ends of the fixture body, to avoid interference with the placement and removal of the power module.

[0013] In one possible implementation, the X-direction moving mechanism includes: a base plate, a first lead screw module and a first guide rail module mounted on the base plate, and an X-direction moving plate connected to the first lead screw module and the first guide rail module.

[0014] In one possible implementation, the first lead screw module includes: two first bearing seats mounted on the base plate, a first lead screw rotatably connected to the two first bearing seats via bearings, a first nut assembly threaded onto the first lead screw, a first handwheel mounted on one of the first bearing seats, and a first locking pin mounted on the first handwheel.

[0015] The X-direction moving plate is connected to the first nut pair.

[0016] In one possible implementation, the first guide rail module includes: a first guide rail mounted on the base plate, and a first slider slidably connected to the first guide rail;

[0017] The X-direction moving plate is connected to the first slider.

[0018] In one possible implementation, the Y-direction moving mechanism includes: a second lead screw module and a second guide rail module mounted on the X-direction moving plate, and a Y-direction moving plate connected to the second lead screw module and the second guide rail module.

[0019] In one possible implementation, the second lead screw module includes: two second bearing seats mounted on the X-direction moving plate, a second lead screw rotatably connected to the two second bearing seats via bearings, a second nut assembly threadedly connected to the second lead screw, a second handwheel mounted on one of the second bearing seats, and a second locking pin mounted on the second handwheel;

[0020] The Y-direction moving plate is connected to the second nut pair.

[0021] In one possible implementation, the second guide rail module includes: a second guide rail mounted on the X-direction moving plate, and a second slider slidably connected to the second guide rail;

[0022] The Y-direction moving plate is connected to the second slider.

[0023] In one possible implementation, the rotating platform includes: a rotating fixed seat mounted on the Y-direction moving plate, a turntable rotatably connected to the rotating fixed seat via a bearing, an adjusting seat fixed to one side of the rotating fixed seat, an adjusting rod and a locking rod mounted on the adjusting seat, and an adjusting protrusion fixed to one side of the turntable.

[0024] The adjusting protrusion is located in the adjusting groove of the adjusting seat, and the positioning component is disposed on the turntable.

[0025] The beneficial effects of the technical solution provided by this utility model include at least the following:

[0026] This technical solution includes an X-direction moving mechanism, a Y-direction moving mechanism mounted on the X-direction moving mechanism, a rotating platform mounted on the Y-direction moving mechanism, a positioning component mounted on the rotating platform, and a marking fixture mounted on the positioning component. The marking fixture can be quickly assembled and disassembled from the positioning component. The marking fixture includes a fixture body with a fixture cavity adapted to the power module. The fixture cavity has a foolproof rod corresponding to the glue-filling hole of the power module. A knob plunger for fixing the power module is also located on one side of the fixture cavity on the fixture body. This design enables rapid power module changeover, improving production efficiency; furthermore, it avoids reversed power module placement, increasing the yield rate. Attached Figure Description

[0027] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0028] Figure 1 A schematic diagram of the front axle side of a power module marking fixture provided in an exemplary embodiment of the present invention is shown.

[0029] Figure 2 A rear axle side schematic diagram of a power module marking fixture provided in an exemplary embodiment of the present invention is shown.

[0030] In the picture:

[0031] 1. X-direction moving mechanism; 2. Y-direction moving mechanism; 3. Rotating platform; 4. Positioning component; 5. Marking fixture;

[0032] 11. Base plate; 12. First lead screw module; 13. First guide rail module; 14. X-direction moving plate; 21. Second lead screw module; 22. Second guide rail module; 23. Y-direction moving plate; 31. Rotary fixed seat; 32. Turntable; 33. Adjusting seat; 34. Adjusting rod; 35. Locking rod; 36. Adjusting protrusion; 37. Adjusting groove; 41. Positioning seat; 42. Recessed positioning groove; 43. Quick-press clamp; 51. Fixture body; 52. Fixture cavity; 53. Anti-fooling rod; 54. Knob plunger;

[0033] 121. First bearing housing; 122. First lead screw; 123. First nut assembly; 124. First handwheel; 125. First locking pin; 131. First guide rail; 132. First slider; 211. Second bearing housing; 212. Second lead screw; 213. Second nut assembly; 214. Second handwheel; 215. Second locking pin; 221. Second guide rail; 222. Second slider. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] Figure 1 This diagram shows a front axle side view of a power module marking fixture provided in an exemplary embodiment of the present invention. Figure 2This diagram shows a rear axle side view of a power module marking fixture provided in an exemplary embodiment of the present invention. The power module marking fixture includes: an X-direction moving mechanism 1, a Y-direction moving mechanism 2 disposed on the X-direction moving mechanism 1, a rotating platform 3 disposed on the Y-direction moving mechanism 2, a positioning component 4 disposed on the rotating platform 3, and a marking fixture 5 disposed on the positioning component 4. The marking fixture 5 can be quickly assembled and disassembled from the positioning component 4. The marking fixture 5 includes a fixture body 51, which has a fixture cavity 52 adapted to the power module. The fixture cavity 52 has a foolproof rod 53 corresponding to the glue-filling hole of the power module. A knob plunger 54 for fixing the power module is also provided on one side of the fixture body 51 located in the fixture cavity 52.

[0038] In this embodiment, the X-direction and Y-direction moving mechanisms, based on a lead screw module and a guide rail module, allow manual adjustment of the horizontal and vertical coordinates of the marking position to ensure marking accuracy. The rotating platform supports angle adjustment to adapt to different marking requirements. The positioning component enables rapid loading and unloading of the marking fixture, improving changeover efficiency. The fixture cavity of the fixture body conforms to the shape of the power module, an anti-fooling rod inserted into the potting hole prevents reverse installation, and a knob plunger secures the module from the side to prevent shaking during marking. Mechanical positioning ensures consistent and reliable marking position.

[0039] In detail, the positioning component 4 includes: a positioning seat 41, which is mounted on the rotating platform 3; a recessed positioning groove 42, which is formed on the positioning seat 41, for quick positioning of the fixture body 51; and a quick-press clamp 43, which is disposed at the edge of the recessed positioning groove 42, for quick assembly and disassembly of the fixture body 51. In one example, there are two quick-press clamps 43, located near both ends of the fixture body 51, to avoid interference with the placement and removal of the power module.

[0040] In this embodiment, the positioning seat serves as the basic carrier, securely mounted on the rotating platform to provide rigid support for the entire component. The recessed positioning groove adopts a concave structure, precisely matching the shape of the fixture body. Physical positioning enables rapid fixture alignment, reducing manual calibration time and ensuring the positional accuracy of the fixture installation. The quick-press clamp at the edge is designed using a lever principle, allowing for rapid clamping or release of the fixture body via a pressing operation. The symmetrical arrangement at both ends ensures uniform distribution of clamping force while avoiding the power module's loading and unloading area, preventing interference with the operating space and significantly improving fixture replacement efficiency.

[0041] Furthermore, the X-direction moving mechanism 1 includes: a base plate 11, a first lead screw module 12 and a first guide rail module 13 mounted on the base plate 11, and an X-direction moving plate 14 connected to the first lead screw module 12 and the first guide rail module 13. The first lead screw module 12 includes: two first bearing seats 121 mounted on the base plate 11, a first lead screw 122 rotatably connected to the two first bearing seats 121 via bearings, a first nut assembly 123 threadedly connected to the first lead screw 122, a first handwheel 124 mounted on one of the first bearing seats 121, and a first locking pin 125 mounted on the first handwheel 124; wherein, the X-direction moving plate 14 is connected to the first nut assembly 123. The first guide rail module 13 includes: a first guide rail 131 mounted on the base plate 11, and a first slider 132 slidably connected to the first guide rail 131; wherein, the X-direction moving plate 14 is connected to the first slider 132.

[0042] In this embodiment, the base plate serves as the basic frame, providing an installation reference for the first lead screw module and the first guide rail module. The first lead screw module drives the first lead screw to rotate via a first handwheel, converting the rotational motion into linear motion of the first nut pair, thereby driving the X-direction moving plate to precisely displace along the X direction. The first guide rail module, through the cooperation of the first slider and the first guide rail, provides rigid guidance for the X-direction moving plate, reducing swaying and deviation during movement and ensuring the stability of displacement. The first locking pin on the first handwheel can fix the first lead screw after positioning, preventing positional shift due to vibration during marking.

[0043] Furthermore, the Y-direction moving mechanism 2 includes: a second lead screw module 21 and a second guide rail module 22 mounted on the X-direction moving plate 14, and a Y-direction moving plate 23 connected to the second lead screw module 21 and the second guide rail module 22. The second lead screw module 21 includes: two second bearing seats 211 mounted on the X-direction moving plate 14; a second lead screw 212 rotatably connected to the two second bearing seats 211 via bearings; a second nut assembly 213 threadedly connected to the second lead screw 212; a second handwheel 214 mounted on one of the second bearing seats 211; and a second locking pin 215 mounted on the second handwheel 214; wherein the Y-direction moving plate 23 is connected to the second nut assembly 213. The second guide rail module 22 includes: a second guide rail 221 mounted on the X-direction moving plate 14, and a second slider 222 slidably connected to the second guide rail 221; wherein the Y-direction moving plate 23 is connected to the second slider 222.

[0044] In this embodiment, the X-direction moving plate serves as a mounting carrier, providing a stable base for the second lead screw module and the second guide rail module. The second lead screw module drives the second lead screw to rotate via the second handwheel, which in turn drives the second nut pair to convert the rotational motion into linear displacement in the Y direction, achieving precise longitudinal adjustment of the marking position. The second guide rail module, through the high-precision cooperation between the second slider and the second guide rail, reduces lateral offset during movement, ensuring smooth sliding of the Y-direction moving plate and improving the rigidity of the mechanism. The second locking pin on the second handwheel locks the second lead screw after positioning, preventing positional changes due to external interference during marking.

[0045] Specifically, the rotating platform 3 includes: a rotating fixed seat 31 mounted on the Y-direction moving plate 23, a turntable 32 rotatably connected to the rotating fixed seat 31 via bearings, an adjusting seat 33 fixed to one side of the rotating fixed seat 31, an adjusting rod 34 and a locking rod 35 mounted on the adjusting seat 33, and an adjusting protrusion 36 fixed to one side of the turntable 32; wherein, the adjusting protrusion 36 is located in the adjusting groove 37 of the adjusting seat 33, and the positioning component 4 is disposed on the turntable 32.

[0046] In this embodiment, the rotating fixed base serves as a basic component, securely mounted on the Y-direction moving plate to provide rotational support for the turntable. The turntable is connected to the rotating fixed base via bearings, allowing free rotation and driving the positioning components and marking fixture to adjust the marking orientation. An adjusting seat and adjusting protrusion cooperate to form an angle positioning mechanism. When the adjusting rod is rotated, the protrusion moves within the adjusting groove, thereby driving the turntable to rotate. The locking rod can fix the turntable after angle adjustment, preventing angular deviation due to vibration during marking. This rotating platform, in conjunction with the X-direction and Y-direction moving mechanisms, achieves precise combined control of planar position and rotation angle, significantly improving the tooling's adaptability to marking complex-shaped power modules.

[0047] In one example, the model of the rotating platform 3 is MISUMI-RPGT100.

[0048] Next, the working principle of a power module marking fixture involved in the embodiments of this utility model will be explained.

[0049] Manual feeding involves placing the power module into the cavity of the marking fixture and securing it using a rotary plunger.

[0050] The marking fixture is fixed in the recessed positioning groove of the positioning component by a quick-press clamp;

[0051] Open the laser marking file, preview the marking pattern with red light, and adjust the position of the marking fixture by rotating the platform, moving the X-axis mechanism, and moving the Y-axis mechanism to make the marking pattern correspond to the marking position of the power module. After positioning is completed, marking production begins.

[0052] It is worth mentioning that if the operator places the power module backwards, the anti-fooling rod will not align with the potting hole of the power module, causing the power module to be unable to be placed in the cavity of the marking fixture and marking will not be possible. The power module must be adjusted before marking can begin.

[0053] In summary, this technical solution includes an X-direction moving mechanism, a Y-direction moving mechanism mounted on the X-direction moving mechanism, a rotating platform mounted on the Y-direction moving mechanism, a positioning component mounted on the rotating platform, and a marking fixture mounted on the positioning component. The marking fixture can be quickly assembled and disassembled from the positioning component. The marking fixture includes a fixture body with a fixture cavity adapted to the power module. The fixture cavity has a foolproof rod corresponding to the glue-filling hole of the power module. A knob plunger for fixing the power module is also located on one side of the fixture cavity on the fixture body. This design enables rapid power module changeover, improving production efficiency; furthermore, it avoids reversed power module placement, improving yield.

[0054] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0055] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A marking fixture for power modules, characterized in that, include: An X-direction moving mechanism (1), a Y-direction moving mechanism (2) disposed on the X-direction moving mechanism (1), a rotating platform (3) disposed on the Y-direction moving mechanism (2), a positioning component (4) disposed on the rotating platform (3), and a marking fixture (5) disposed on the positioning component (4); The marking fixture (5) can be quickly assembled and disassembled with the positioning component (4). The marking fixture (5) includes a fixture body (51), which has a fixture cavity (52) adapted to the power module. The fixture cavity (52) has a foolproof rod (53) corresponding to the glue-filling hole of the power module. The fixture body (51) also has a knob plunger (54) for fixing the power module on one side of the fixture cavity (52).

2. The power module marking fixture according to claim 1, characterized in that, The positioning component (4) includes: Positioning seat (41), which is mounted on the rotating platform (3); A recessed positioning groove (42), formed on the positioning seat (41), is used for quick positioning of the fixture body (51); and A quick-release clamp (43) is provided at the edge of the recessed positioning groove (42) for quick assembly and disassembly of the fixture body (51).

3. The power module marking fixture according to claim 2, characterized in that, There are two quick-press clamps (43), which are located near both ends of the fixture body (51) to avoid interference with the placement and removal of the power module.

4. The power module marking fixture according to claim 1, characterized in that, The X-direction moving mechanism (1) includes: a base plate (11), a first lead screw module (12) and a first guide rail module (13) mounted on the base plate (11), and an X-direction moving plate (14) connected to the first lead screw module (12) and the first guide rail module (13).

5. The power module marking fixture according to claim 4, characterized in that, The first lead screw module (12) includes: two first bearing seats (121) mounted on the base plate (11), a first lead screw (122) rotatably connected to the two first bearing seats (121) via bearings, a first nut assembly (123) threadedly connected to the first lead screw (122), a first handwheel (124) mounted on one of the first bearing seats (121), and a first locking pin (125) mounted on the first handwheel (124). The X-direction moving plate (14) is connected to the first nut pair (123).

6. The power module marking fixture according to claim 4, characterized in that, The first guide rail module (13) includes: a first guide rail (131) mounted on the base plate (11) and a first slider (132) slidably connected to the first guide rail (131). The X-direction moving plate (14) is connected to the first slider (132).

7. The power module marking fixture according to claim 4, characterized in that, The Y-direction moving mechanism (2) includes: a second lead screw module (21) and a second guide rail module (22) mounted on the X-direction moving plate (14), and a Y-direction moving plate (23) connected to the second lead screw module (21) and the second guide rail module (22).

8. The power module marking fixture according to claim 7, characterized in that, The second lead screw module (21) includes: two second bearing seats (211) mounted on the X-direction moving plate (14), a second lead screw (212) rotatably connected to the two second bearing seats (211) via bearings, a second nut pair (213) threadedly connected to the second lead screw (212), a second handwheel (214) mounted on one of the second bearing seats (211), and a second locking pin (215) mounted on the second handwheel (214); The Y-direction moving plate (23) is connected to the second nut pair (213).

9. The power module marking fixture according to claim 7, characterized in that, The second guide rail module (22) includes: a second guide rail (221) mounted on the X-direction moving plate (14), and a second slider (222) slidably connected to the second guide rail (221); The Y-direction moving plate (23) is connected to the second slider (222).

10. The power module marking fixture according to claim 7, characterized in that, The rotating platform (3) includes: a rotating fixed seat (31) mounted on the Y-direction moving plate (23), a turntable (32) rotatably connected to the rotating fixed seat (31) via a bearing, an adjusting seat (33) fixed to one side of the rotating fixed seat (31), an adjusting rod (34) and a locking rod (35) mounted on the adjusting seat (33), and an adjusting protrusion (36) fixed to one side of the turntable (32). The adjusting protrusion (36) is located in the adjusting groove (37) of the adjusting seat (33), and the positioning component (4) is disposed on the turntable (32).

Images