Linear friction welding clamp device for water-cooled shell of new energy automobile

Abstract

The linear friction welding clamp device for the water-cooling machine shell of the new energy automobile comprises a supporting seat, an air cylinder seat and a mounting seat are oppositely arranged on the supporting seat, an air cylinder is arranged on the air cylinder seat, and a pushing seat used for pushing a motor to move is arranged on an output shaft of the air cylinder. The mounting seat is connected with an adaptive seat matched with the through hole of the inner cavity of the motor through a connecting rod; a sliding rail is arranged on the portion, below the motor, of the supporting base, a sliding base is arranged on the sliding rail in a sliding mode, a base plate used for placing a machine shell on the outer side of the motor is arranged on the sliding base, an automatic synchronous clamping clamp is further arranged on the supporting base, and two positioning blocks used for clamping the machine shell are arranged on the automatic synchronous clamping clamp. And a gap corresponding to a shell welding seam is formed between the two positioning blocks after the two positioning blocks get close. The automatic welding machine has the beneficial effects that the automation degree is high, and the quality of welded products is stable.

Description

TECHNICAL FIELD

[0001] The present application relates to a new energy vehicle water-cooled machine shell linear friction welding fixture device. BACKGROUND

[0002] The water-cooled motor shell is a cooling structure for the motor, which absorbs and dissipates the heat generated during the operation of the motor by circulating water or other cooling liquid, so as to keep the motor working stably within a suitable temperature range. The manufacturing process of the water-cooled motor shell in the prior art mainly has the following two kinds:

[0003] (1) Inner and outer shell two-body welding process

[0004] This process needs to cast the inner shell and the outer shell respectively, then respectively carry out mechanical processing, process the spiral water channel on the inner shell, and finally carry out overall welding. This process has the following disadvantages: unstable welding quality, immature aluminum welding process, high welding difficulty, easy to appear defects such as porosity, crack, burning through, incomplete penetration, slag inclusion, etc., the weld strength is only 60-80% of the base material; poor sealing performance, easy to leak after welding, low qualified rate of air tightness detection, and the waste product rate can reach more than 10%; low production efficiency: need to punch the bevel, clean the butt joint surface, and go through complex procedures such as multiple turnover, which is time-consuming and laborious, high cost; many safety hazards, risks such as arc flying, harmful smoke inhalation, and poor mechanical properties of the butt joint surface.

[0005] (2) Pre-embedded copper pipe or stainless steel pipe embedded casting process

[0006] This process pre-embeds the copper pipe or stainless steel pipe in the motor shell, but has the following problems: poor heat dissipation performance, different water channel and body materials, different thermal conductivity and expansion coefficients, and unable to form an integral after embedding; process limitation, the cooling effect decreases sharply when the number of water channels exceeds 8 and the total length of the water channels exceeds 1.5 meters; high cost, special materials and complex process are needed, and the manufacturing cost is high.

[0007] Based on the disadvantages of the above two processes, if only a layer of shell is sleeved on the periphery of the motor, both the cost and the heat dissipation effect can be saved. If only a layer of shell is sleeved, the shell is very easy to be welded through due to its thinness, so the friction welding process needs to be used. Friction welding is a solid-phase welding method, which realizes the plastic connection of metal materials through the rotation and movement of the welding head under the action of friction and pressure. The specific process steps include: 1, roll the flat plate into a cylindrical body; 2, sleeve the cylindrical body on the outside of the motor; 3, weld the longitudinal seam in the middle of the cylindrical body and simultaneously weld the cylindrical body and the motor; 4, annular welding between the end of the cylindrical body and the end plate of the motor. To ensure the stable quality of the longitudinal seam welding in the middle of the cylindrical body, a special fixture device needs to be used. SUMMARY

[0008] The problem to be solved by the present invention is to provide a linear friction welding fixture device for water-cooled housings of new energy vehicles. The fixture device has a high degree of automation and produces products with stable quality.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a linear friction welding fixture device for water-cooled housings of new energy vehicles, comprising a support base, on which a cylinder seat and a mounting seat are arranged opposite to each other, characterized in that a cylinder is provided on the cylinder seat, and a push seat for driving the motor is provided on the output shaft of the cylinder; an adapter seat adapted to the through hole of the motor cavity is connected to the mounting seat through a connecting rod; a slide rail is provided on the support base below the motor, and a sliding seat is slidably provided on the slide rail; a seat plate for placing the outer housing of the motor is provided on the sliding seat; an automatic synchronous clamping clamp is also provided on the support base, and two positioning blocks for clamping the housing are provided on the automatic synchronous clamping clamp, and the two positioning blocks form a gap corresponding to the weld seam of the housing when they are brought together.

[0010] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housing of new energy vehicles, the push seat includes a first circular plate adapted to the inner cavity of the motor, and a second circular plate disposed on the first circular plate and the cylinder output shaft, wherein the diameter of the second circular plate is larger than the diameter of the first circular plate.

[0011] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housings of new energy vehicles, the sliding seat is further provided with a limiting seat, and a limiting space for accommodating the end plate of the motor is provided between the seat plate and the limiting seat.

[0012] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housings of new energy vehicles, a support plate is provided on the sliding seat within the limiting space, and a support protrusion adapted to the end plate of the motor is provided on the support plate.

[0013] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housing of new energy vehicles, a horizontal plate is provided on the mounting base, a guide post is provided on the horizontal plate, and a lifting block for supporting the housing is provided on the guide post.

[0014] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housings of new energy vehicles, the base plate is provided with a square hole adapted to the horizontal plate, and the base plate is also provided with an insertion hole adapted to the guide post.

[0015] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housings of new energy vehicles, the automated synchronous clamping clamp includes a hydraulic cylinder and two sliding blocks disposed on the output end of the hydraulic cylinder. Each sliding block is provided with an L-shaped seat plate, and the positioning block is mounted on the corresponding L-shaped seat plate.

[0016] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housing of new energy vehicles, the top of the mounting base is provided with a sliding groove, a slider is slidably disposed in the sliding groove, and the bottom of the slider is provided with a protrusion that can slide into the weld seam of the housing.

[0017] Preferably, in the above-mentioned linear friction welding fixture device for water-cooled housings of new energy vehicles, the positioning block is provided with a semi-circular groove that is adapted to the outer wall of the housing.

[0018] The main technical effects of this invention are as follows:

[0019] (1) Place the motor with the housing on the base plate. The movement of the cylinder can drive the pusher to move into the inner cavity of the motor and further push the motor to the automatic synchronous clamping clamp. At this time, the adapter is just in the through hole of the inner cavity of the motor. Next, the automatic synchronous clamping clamp drives the positioning block to move and clamp the housing. As can be seen from the above, the housing and the motor can be fixed. The whole process is automated, without human intervention, and the efficiency is high.

[0020] (2) The push seat and the adapter seat can fix the motor, and the positioning block can fix the housing, ensuring that the motor and the housing can always be relatively stable, avoiding relative movement between the two during the welding process and affecting the welding, thus improving the welding quality;

[0021] (3) The positioning block can securely wrap the casing, so that the gap between the two ends of the casing to be welded remains constant, further improving the welding quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0024] Figure 3 This is a schematic diagram of the structure of the housing in this invention when it is located inside the positioning block;

[0025] Figure 4 This is a schematic diagram of the structure of the mounting base, slider, and protrusion in this invention;

[0026] Figure 5 This is a schematic diagram of the sliding seat, seat plate, limiting seat, and support plate in this invention.

[0027] Figure 6 This is a schematic diagram of the automated synchronous clamping clamp and positioning block in this invention;

[0028] Figure 7 This is a schematic diagram of the structure after the positioning block in this invention has been removed. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0030] like Figures 1-7 As shown, a linear friction welding fixture for a water-cooled housing of a new energy vehicle includes a support base 11, on which a cylinder seat 12 and a mounting seat 13 are disposed opposite to each other, and the cylinder seat 12 and the mounting seat 13 are welded to the support base 11.

[0031] A cylinder 21 is fixed to the cylinder base 12 by screws, and a push seat 23 for driving the motor 22 is provided on the output shaft of the cylinder 21. An adapter seat 24 that is adapted to the through hole 42 of the inner cavity of the motor 22 is connected to the mounting base 13 by a connecting rod 41.

[0032] In this invention, a slide rail 45 is provided on the support base 11 below the motor 22. A sliding seat 46 is slidably provided on the slide rail 45. A seat plate 47 for placing the outer housing 40 of the motor 22 is provided on the sliding seat 46. An automatic synchronous clamping clamp 5 is also provided on the support base 11. The automatic synchronous clamping clamp 5 is provided with two positioning blocks 50 for clamping the housing. When the two positioning blocks 50 are brought together, a gap 60 corresponding to the weld of the housing 40 is formed between them.

[0033] The working principle of this invention is:

[0034] The motor 22, fitted with housing 40, is placed on base plate 47. The movement of cylinder 21 can drive push seat 23 to move into the inner cavity of motor 22 and further push motor 22 to the automatic synchronous clamping clamp 5. At this time, the adapter seat 24 is exactly in the through hole 42 of the inner cavity of motor 22. Next, the automatic synchronous clamping clamp 5 drives the positioning block 50 to move and clamp housing 40. As can be seen from the above, the housing 40 and motor 22 can be fixed. The whole process is automated, without human intervention, and has high efficiency.

[0035] The technical effects of this invention are as follows: the push base 23 and the adapter base 24 can fix the motor 22, and the positioning block 50 can fix the housing 40, ensuring that the motor 22 and the housing 40 can always be relatively stable, avoiding relative movement between the two during the welding process and affecting the welding, thus improving the welding quality; the positioning block 50 can firmly wrap the housing 40, so that the gap between the two ends of the housing 40 to be welded remains unchanged, further improving the welding quality.

[0036] The push base 23 includes a first circular plate 231 adapted to the inner cavity of the motor 22, and a second circular plate 232 disposed on the first circular plate 231 and the output shaft of the cylinder 21. The diameter of the second circular plate 232 is larger than the diameter of the first circular plate 231. This design ensures that the push base 23 can extend partially into the inner cavity of the motor 22 and can also push the motor 22 to move.

[0037] The sliding seat 46 of this invention is also provided with a limiting seat 71, and a limiting space for accommodating the end plate of the motor 22 is provided between the seat plate 47 and the limiting seat 71. A support plate 72 is provided on the sliding seat 46 within the limiting space, and a support protrusion 73 adapted to the end plate of the motor 22 is provided on the support plate 72. When working, the worker can quickly adapt the shape of the end plate of the motor 22 to the support protrusion 73, thereby realizing rapid material feeding without repeated movement or changing direction.

[0038] In this invention, a horizontal plate 81 is welded onto the mounting base 13, a guide post 82 is provided on the horizontal plate 81, and a lifting block 83 for supporting the housing 40 is provided on the guide post 82. This design allows the lifting block 83 to lift the housing 40 and move it together during the movement of the housing 40, thereby improving the stability of the structure.

[0039] The base plate 47 of this invention is provided with a square hole 91 that matches the horizontal plate 81, and the base plate 47 is also provided with an insertion hole 92 that matches the guide post 82. When the base plate 47 moves to the end point, the horizontal plate 81 is inserted into the square hole 91, and the guide post 82 is inserted into the insertion hole 92, making the processing more stable and avoiding shaking.

[0040] The automated synchronous clamping clamp 5 of this invention includes a hydraulic cylinder 95 and two sliding blocks 96 disposed on the output end of the hydraulic cylinder 95. The two sliding blocks 96 move in opposite directions, and each sliding block 96 is provided with an L-shaped seat plate 97. The positioning block 50 is mounted on the corresponding L-shaped seat plate 97 by screws. Through the above design, clamping can be guaranteed while reducing costs.

[0041] The mounting base 13 of the present invention is provided with a groove 131 at the top, a slider 132 is slidably disposed in the groove 131, and a protrusion 133 is provided at the bottom of the slider 132 that can slide into the weld of the housing 40.

[0042] The specific working principle is as follows: the slider 132 can be moved. If the protrusion 133 can be moved into the weld seam, it means that the weld seam is just aligned with the welding gun. If the protrusion 133 cannot be moved into the weld seam, then the position of the housing 40 needs to be adjusted.

[0043] The positioning block 50 in this invention is provided with a semi-circular groove 500 that is adapted to the outer wall of the housing 40. This design can ensure that the positioning block 50 better grips the housing 40.

[0044] It should be noted that the standard parts used in this invention can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0045] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A linear friction welding fixture for a water-cooled housing of a new energy vehicle, comprising a support base, wherein a cylinder seat and a mounting base are disposed opposite to each other on the support base, characterized in that: A cylinder is mounted on the cylinder base, and a pusher seat for moving the motor is mounted on the output shaft of the cylinder. An adapter seat that matches the through hole in the inner cavity of the motor is connected to the mounting base via a connecting rod. A slide rail is mounted on the support base below the motor, and a sliding seat is slidably mounted on the slide rail. A seat plate for placing the outer housing of the motor is mounted on the sliding seat. An automatic synchronous clamping clamp is also mounted on the support base. The automatic synchronous clamping clamp is equipped with two positioning blocks for clamping the housing. When the two positioning blocks are brought together, a gap corresponding to the weld seam of the housing is formed between them.

2. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 1, characterized in that: The push base includes a first circular plate adapted to the inner cavity of the motor, and a second circular plate disposed on the first circular plate and the cylinder output shaft, wherein the diameter of the second circular plate is larger than the diameter of the first circular plate.

3. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 1 or 2, characterized in that: The sliding seat is also provided with a limiting seat, and a limiting space is provided between the seat plate and the limiting seat to accommodate the end plate of the motor.

4. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 3, characterized in that: A support plate is provided on the sliding seat within the limiting space, and the support plate is provided with a support protrusion that is adapted to the end plate of the motor.

5. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 1, characterized in that: A horizontal plate is provided on the mounting base, a guide post is provided on the horizontal plate, and a lifting block for supporting the housing is provided on the guide post.

6. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 5, characterized in that: The base plate is provided with a square hole that matches the horizontal plate, and the base plate is also provided with an insertion hole that matches the guide post.

7. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 1, characterized in that: The automated synchronous clamping clamp includes a hydraulic cylinder and two sliding blocks disposed on the output end of the hydraulic cylinder. Each sliding block is provided with an L-shaped base plate, and the positioning block is mounted on the corresponding L-shaped base plate.

8. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 1, characterized in that: The top of the mounting base is provided with a sliding groove, and a slider is slidably disposed in the sliding groove. The bottom of the slider is provided with a protrusion that can slide into the weld seam of the housing.

9. The linear friction welding fixture device for water-cooled housings of new energy vehicles according to claim 1, characterized in that: The positioning block is provided with a semi-circular groove that fits the outer wall of the housing.

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