A high-precision positioning tool for friction welding of an OBC electric control shell water nozzle

Abstract

The utility model relates to a kind of high-precision positioning tool for OBC electric control shell water tap friction welding, including bottom plate and vertical plate, multiple lower support strips are arranged in parallel in the middle of bottom plate upper end, side top device is installed in the left side of bottom plate upper end, a vertical plate is vertically installed in the right side of bottom plate upper end, one supporting leg boss is installed in each corner of vertical plate left side wall, one hole position protrusion is set on each supporting leg boss, one compression device is installed in the outside of each supporting leg boss in vertical plate left side wall between upper two supporting leg bosses, water tap fixing device is installed in the vertical plate left side wall between upper two supporting leg bosses above.The utility model can accurately position OBC electric control shell by the cooperation of hole position protrusion on supporting leg boss and the circular through-hole of supporting leg, and the effect of limiting baffle;Water tap fixing device can accurately fix water tap, ensure the welding position precision of water tap and shell, and improve the qualified rate of product.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a high-precision positioning tool for friction welding of OBC electronic control housing water nozzles. Background Technology

[0002] In the production and manufacturing process of new energy vehicles, the OBC (On-Board Charger) electronic control housing is a key component, and its quality and performance directly affect the working efficiency and safety of the on-board charger.

[0003] like Figure 8 As shown, each of the four corners of the bottom of the OBC electrical control housing 30 is equipped with a foot 31, and each foot 31 has a circular through hole 32. The OBC electrical control housing 30 has an internal partition 34, and a water nozzle 33 is located on the side of the OBC electrical control housing 30. The water nozzle 33, as an important component of the OBC electrical control housing 30, needs to be connected to the housing by friction welding. In the friction welding process between the OBC electrical control housing 30 and the water nozzle 33, traditional tooling often has a simple structure and low positioning accuracy, leading to deviations in the welding position of the water nozzle 33 and the housing, affecting the product's sealing performance and service life. Furthermore, the clamping of traditional tooling is unstable, and the workpiece is prone to loosening during welding, which not only reduces welding quality but may also cause safety accidents. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a high-precision positioning fixture for friction welding of OBC electronic control housing water nozzles. It aims to solve the problems of low positioning accuracy, unreliable clamping, and poor versatility of existing new energy OBC electronic control housing friction welding water nozzle fixtures, so as to improve the welding quality and production efficiency of OBC electronic control housing and water nozzle.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A high-precision positioning fixture for friction welding of OBC electronic control housing water taps is provided, including a base plate and a vertical plate. Multiple lower support bars are arranged side-by-side in the middle of the upper part of the base plate. A side-top device is installed on the left side of the upper part of the base plate. A vertical plate is vertically installed on the right side of the upper part of the base plate. A leg protrusion is installed at each of the four corners of the left side wall of the vertical plate. Each leg protrusion has a hole protrusion. A clamping device is installed on the left side wall of the vertical plate outside each leg protrusion. A clamping device is installed between the two upper leg protrusions on the left side wall of the vertical plate. A water tap fixing device includes a spring-loaded block, an upper support, and a lower support. The upper support and the lower support are installed sequentially from top to bottom on the left side wall of the upright plate. A spring-loaded block that slides laterally is installed between the upper support and the lower support. A spring is installed between the spring-loaded block and the upright plate. A first pressing cylinder is vertically installed at the lower end of the lower support. The piston rod of the first pressing cylinder passes through the lower support and is rotatably connected to a first pressure plate. A first rotating seat is installed at the upper end of the lower support. A first connecting piece is rotatably installed on each side of the first rotating seat. The two first connecting pieces are rotatably connected to the two sides of the middle part of the first pressure plate, respectively.

[0006] As a supplement to the technical solution described in this utility model, a copper pressure block is installed at the lower part of the free end of the first pressure plate.

[0007] As a supplement to the technical solution described in this utility model, the pressing device includes a second pressing cylinder, a second rotating seat, and a second pressure plate. The second pressing cylinder is vertically installed on the side wall of the upright plate. The piston rod of the second pressing cylinder is rotatably connected to one end of the second pressure plate. A second rotating seat is provided on one side of the piston rod of the second pressing cylinder. A second connecting piece is rotatably installed on each side of the second rotating seat. The two second connecting pieces are rotatably connected to the two sides of the middle part of the second pressure plate, respectively.

[0008] As a supplement to the technical solution described in this utility model, the side-top device includes a base, a side-top cylinder, and a push block. The base is fixed to the upper end of the base plate. A horizontally sliding push block is installed inside the upper part of the base. A side-top cylinder is installed on the top of the base. The piston rod of the side-top cylinder is connected to the push block through a connecting rod. A pad is embedded in the upper part of the free end of the push block.

[0009] As a supplement to the technical solution described in this utility model, a lifting ring is installed at each of the two left corners of the upper end of the base plate, and a lifting ring is installed on both the front and rear sides of the upper end of the upright plate.

[0010] As a supplement to the technical solution described in this utility model, at least one limiting baffle is provided on both sides of the middle part of the left side wall of the upright plate.

[0011] As a supplement to the technical solution described in this utility model, notches are provided at the middle right end of the upper support and the middle right end of the spring block, and the first rotating seat and the first pressure plate are both located within the notches.

[0012] Beneficial effects: This utility model relates to a high-precision positioning fixture for friction welding of water taps on OBC electronic control housings. Through the engagement of the protruding holes on the support legs with the circular through holes of the support legs, and the function of the limiting baffle, the OBC electronic control housing can be accurately positioned. The water tap fixing device can precisely fix the water tap, ensuring the welding position accuracy between the water tap and the housing and improving the product qualification rate. The water tap is located above the connection between the OBC electronic control housing and the partition. When the pressure block presses the water tap, a large force is transmitted to the connection between the OBC electronic control housing and the partition. The pads and spring-loaded blocks, respectively pressing against the two sides of the upper part of the partition, can reduce the deformation of the upper part of the partition. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention before the product is installed;

[0014] Figure 2 This is a schematic diagram of the structure of the upright plate described in this utility model;

[0015] Figure 3 This is a schematic diagram of the water tap fixing device described in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the first pressing cylinder, the first rotating seat, the first connecting piece, and the first pressure plate described in this utility model;

[0017] Figure 5 This is a structural schematic diagram of the support leg boss and clamping device described in this utility model;

[0018] Figure 6 This is a schematic diagram of the side-top device described in this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the present invention after the product is installed;

[0020] Figure 8 This is a schematic diagram of the structure of the processed product of this utility model.

[0021] Diagram: 1. Base plate, 2. Lower support bar, 3. Pressing device, 4. Support leg boss, 5. Vertical plate, 6. Water nozzle fixing device, 7. Lifting ring, 8. Side top device, 9. Hole protrusion, 10. First pressing cylinder, 11. Lower support, 12. Spring block, 13. Upper support, 14. First pressure plate, 15. Limiting baffle, 16. Spring, 17. First rotating seat, 18. First connecting piece, 19. Pressing block, 20. Notch, 21. Second pressing cylinder, 22. Second rotating seat, 23. Second connecting piece, 24. Second pressure plate, 25. Base, 26. Side top cylinder, 27. Push block, 28. Pad block, 29. Connecting rod, 30. OBC electrical control housing, 31. Support leg, 32. Circular through hole, 33. Water nozzle, 34. Partition. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0023] The embodiments of this utility model relate to a high-precision positioning fixture for friction welding of OBC electronic control housing water taps, such as... Figure 1-8As shown, the device includes a base plate 1 and a vertical plate 5. Multiple lower support bars 2 are arranged side-by-side at the upper center of the base plate 1 to support the bottom of the OBC electronic control housing 30. The side-by-side arrangement of the lower support bars 2 ensures the stability of the support. A side-top device 8 is installed on the left side of the upper end of the base plate 1. A vertical plate 5 is vertically installed on the right side of the upper end of the base plate 1. A leg protrusion 4 is installed at each of the four corners of the left side wall of the vertical plate 5. Each leg protrusion 4 has a hole protrusion 9. A clamping device 3 is installed on the outer side of each leg protrusion 4 on the left side wall of the vertical plate 5. A water nozzle fixing device 6 is installed between the two upper leg protrusions 4 on the left side wall of the vertical plate 5. The water nozzle fixing device 6 includes a spring block 12, an upper support 13, and a lower support 11. The left side wall of the vertical plate 5 is arranged from top to bottom as follows: An upper support 13 and a lower support 11 are installed. A horizontally sliding spring block 12 is installed between the upper support 13 and the lower support 11. A spring 16 is installed between the spring block 12 and the upright plate 5. A first pressing cylinder 10 is vertically installed at the lower end of the lower support 11. The piston rod of the first pressing cylinder 10 passes through the lower support 11 and is rotatably connected to a first pressure plate 14. A first rotating seat 17 is installed at the upper end of the lower support 11. A first connecting piece 18 is rotatably installed on each side of the first rotating seat 17. The two first connecting pieces 18 are rotatably connected to the two sides of the middle part of the first pressure plate 14 respectively. When the pressing device 3 needs to press, the first pressing cylinder 10 is activated. The piston rod of the first pressing cylinder 10 extends, causing one end of the first pressure plate 14 to lift. Using the lever principle, the other end of the first pressure plate 14 is pressed downward.

[0024] A copper pressure block 19 is installed at the lower part of the free end of the first pressure plate 14; the first pressure plate 14 and the pressure block 19 are fixed together by fasteners, the copper pressure block 19 is replaceable, and the copper pressure block 19 can prevent damage to the water tap.

[0025] The clamping device 3 includes a second clamping cylinder 21, a second rotating seat 22, and a second pressure plate 24. The second clamping cylinder 21 is vertically mounted on the side wall of the upright plate 5. The piston rod of the second clamping cylinder 21 is rotatably connected to one end of the second pressure plate 24. The second rotating seat 22 is provided on one side of the piston rod of the second clamping cylinder 21. A second connecting piece 23 is rotatably mounted on each side of the second rotating seat 22. The two second connecting pieces 23 are rotatably connected to the two sides of the middle part of the second pressure plate 24, respectively. When clamping is required, the second clamping cylinder 21 is activated, and the piston rod of the second clamping cylinder 21 extends, causing one end of the second pressure plate 24 to lift. Using the lever principle, the other end of the second pressure plate 24 is pressed downward to achieve clamping.

[0026] The side-top device 8 includes a base 25, a side-top cylinder 26, and a push block 27. The base 25 is fixed to the upper end of the base plate 1. The push block 27, which slides horizontally, is installed in the upper part of the base 25. The side-top cylinder 26 is installed on the top of the base 25. The piston rod of the side-top cylinder 26 is connected to the push block 27 through a connecting rod 29. A pad 28 is embedded in the upper part of the free end of the push block 27. The side-top cylinder 26 drives the push block 27 to slide laterally through the connecting rod 29. The pad 28 at the free end of the push block 27 is inserted into the OBC electronic control housing 30 and presses against the upper part of the partition 34 to achieve side-top positioning.

[0027] A lifting ring 7 is installed at each of the two corners on the upper left side of the base plate 1, and a lifting ring 7 is installed on both the front and rear sides of the upper end of the vertical plate 5. The lifting rings 7 facilitate the handling of the tooling.

[0028] At least one limiting baffle 15 is provided on both sides of the middle part of the left side wall of the upright plate 5 to limit the front and rear sides of the OBC electronic control housing 30.

[0029] The upper support 13 and the spring block 12 are both provided with notches 20 at the middle right end. The first rotating seat 17 and the first pressure plate 14 are both located within the notches 20, making the structure more compact.

[0030] In use, the OBC electronic control housing 30 is placed upright on the lower support bar 2. At the same time, the four corner feet 31 of the OBC electronic control housing 30 are placed on the corresponding foot protrusions 4. The circular through holes 32 of the foot 31 are engaged with the hole protrusions 9 on the foot protrusions 4, completing the initial positioning of the OBC electronic control housing 30. Each foot protrusion 4 has a pressing device 3 on one side. Then, the four pressing devices 3 are activated to press the edge of the foot 31. Then, the side pressing cylinder 26 of the side pressing device 8 is activated, which drives the push block 27 to slide through the connecting rod 29. The pad block 28 and the spring pressing block 12 press against the two sides of the upper part of the partition 34 respectively. Next, the water nozzle 33 is placed in the center of the top of the OBC electronic control housing 30. The first pressing cylinder 10 is activated. The piston rod of the first pressing cylinder 10 extends, causing one end of the first pressure plate 14 to lift. Using the lever principle, the pressing block 19 at the other end of the first pressure plate 14 presses down to press the water nozzle 33. After the water nozzle 33 is fixed, friction welding can be performed. After welding is completed, each cylinder is reset and the workpiece is removed.

[0031] The water nozzle 33 is located above the connection between the OBC electronic control housing 30 and the partition 34. When the pressure block 19 presses the water nozzle 33, a large force will be transmitted to the connection between the OBC electronic control housing 30 and the partition 34. The deformation of the upper part of the partition 34 can be reduced by the pad block 28 and the spring pressure block 12 pressing against the two sides of the upper part of the partition 34 respectively.

[0032] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0033] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0035] The above provides a detailed description of a high-precision positioning fixture for friction welding of OBC electronic control housing water taps. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A high-precision positioning fixture for friction welding of water taps on OBC electronic control housings, comprising a base plate (1) and a vertical plate (5), characterized in that: The base plate (1) has multiple lower support bars (2) arranged side by side in the middle of its upper end. A side top device (8) is installed on the left side of the upper end of the base plate (1). A vertical plate (5) is installed on the right side of the upper end of the base plate (1). A leg protrusion (4) is installed at each of the four corners of the left side wall of the vertical plate (5). Each leg protrusion (4) has a hole protrusion (9). A clamping device (3) is installed on the left side wall of the vertical plate (5) outside each leg protrusion (4). A water nozzle fixing device (6) is installed on the left side wall of the vertical plate (5) between the two upper leg protrusions (4). The water nozzle fixing device (6) includes a spring block (12), an upper support (13), and a lower support (11). The vertical plate ( 5) An upper support (13) and a lower support (11) are installed sequentially from top to bottom on the left side wall. A horizontally sliding spring block (12) is installed between the upper support (13) and the lower support (11). A spring (16) is installed between the spring block (12) and the vertical plate (5). A first pressing cylinder (10) is vertically installed at the lower end of the lower support (11). The piston rod of the first pressing cylinder (10) passes through the lower support (11) and is rotatably connected to the first pressure plate (14). A first rotating seat (17) is installed at the upper end of the lower support (11). A first connecting piece (18) is rotatably installed on each side of the first rotating seat (17). The two first connecting pieces (18) are rotatably connected to the two sides of the middle part of the first pressure plate (14).

2. The high-precision positioning fixture for friction welding of OBC electronic control housing water taps according to claim 1, characterized in that: A copper pressure block (19) is installed at the lower part of the free end of the first pressure plate (14).

3. The high-precision positioning fixture for friction welding of OBC electronic control housing water taps according to claim 1, characterized in that: The pressing device (3) includes a second pressing cylinder (21), a second rotating seat (22), and a second pressure plate (24). The second pressing cylinder (21) is vertically installed on the side wall of the upright plate (5). The piston rod of the second pressing cylinder (21) is rotatably connected to one end of the second pressure plate (24). A second rotating seat (22) is provided on one side of the piston rod of the second pressing cylinder (21). A second connecting piece (23) is rotatably installed on each side of the second rotating seat (22). The two second connecting pieces (23) are rotatably connected to the two sides of the middle part of the second pressure plate (24).

4. A high-precision positioning fixture for friction welding of OBC electronic control housing water taps according to claim 1, characterized in that: The side-top device (8) includes a base (25), a side-top cylinder (26), and a push block (27). The base (25) is fixed to the upper end of the base plate (1). A horizontally sliding push block (27) is installed inside the upper part of the base (25). A side-top cylinder (26) is installed on the top of the base (25). The piston rod of the side-top cylinder (26) is connected to the push block (27) through a connecting rod (29). A pad (28) is embedded in the upper part of the free end of the push block (27).

5. A high-precision positioning fixture for friction welding of OBC electronic control housing water taps according to claim 1, characterized in that: A lifting ring (7) is installed at each of the two corners on the upper left side of the base plate (1), and a lifting ring (7) is installed on both the front and rear sides of the upper end of the upright plate (5).

6. A high-precision positioning fixture for friction welding of OBC electronic control housing water taps according to claim 1, characterized in that: At least one limiting baffle (15) is provided on both sides of the middle part of the left side wall of the upright plate (5).

7. A high-precision positioning fixture for friction welding of OBC electronic control housing water taps according to claim 1, characterized in that: The upper support (13) and the spring block (12) are both provided with notches (20), and the first rotating seat (17) and the first pressure plate (14) are both located in the notches (20).

Images