Servo rotary friction welding machine

Abstract

This invention provides a servo rotary friction welding machine, which includes a column, a mounting bracket, a mounting base, and a rotary welding motor assembly. The mounting bracket is mounted on the column, and the mounting base is mounted on the mounting bracket. The mounting base includes a motor fixing part, a bracket connecting part, a first inclined pull part, and a second inclined pull part. The motor fixing part, the bracket connecting part, the first inclined pull part, and the second inclined pull part form a mounting position for the rotary welding motor assembly. The rotary welding motor assembly is mounted on the motor fixing part. The bracket connecting part can move along the plumb line on the mounting bracket. The motor fixing part and the bracket connecting part are perpendicularly connected and are also connected by the first inclined pull part and the second inclined pull part. The first inclined pull part is located on the first side of the mounting position, and the second inclined pull part is located on the second side of the mounting position. The first side and the second side of the mounting position are opposite to each other. Applying this invention can reduce the deformation of the mounting base used to mount the rotary welding motor assembly and ensure welding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of servo rotary friction welding machine technology, specifically, to a servo rotary friction welding machine. Background Technology

[0002] A servo rotary friction welding machine is a plastic welding device that uses mechanical rotational force to cause two plastic parts to rub against each other and generate heat, thereby achieving the purpose of melting. The rotary welding motor assembly drives the tooling plastic parts to rotate at high speed, causing rotational friction between the plastic parts. The increased friction causes the two plastic parts to heat up instantaneously. When the temperature reaches the melting point of the plastic product, the contact surfaces of the plastic workpieces fuse together. External pressure then forces the upper and lower workpieces to rotate and solidify into one piece.

[0003] However, during the operation of a servo rotary friction welding machine, it is necessary to frequently control the up and down movement of the rotary welding motor assembly. Since the rotary welding motor assembly is usually quite heavy, the mounting base used to install the rotary welding motor assembly is prone to deformation after long-term operation, which leads to a reduction in welding accuracy.

[0004] Therefore, a more optimized mounting structure for the spin-melting motor assembly needs to be considered. Utility Model Content

[0005] The main objective of this invention is to provide a servo rotary friction welding machine that can reduce the deformation of the mounting base used to install the rotary welding motor assembly and ensure welding accuracy.

[0006] To achieve the above-mentioned main objectives, the servo rotary friction welding machine provided by this utility model includes a column, a mounting bracket, a mounting base, and a rotary welding motor assembly. The mounting bracket is mounted on the column, and the mounting base is mounted on the mounting bracket. The mounting base includes a motor fixing part, a bracket connecting part, a first inclined pull part, and a second inclined pull part. The motor fixing part, the bracket connecting part, the first inclined pull part, and the second inclined pull part form a mounting position for the rotary welding motor assembly. The rotary welding motor assembly is mounted on the motor fixing part. The bracket connecting part can move along the plumb line on the mounting bracket. The motor fixing part and the bracket connecting part are vertically connected. The motor fixing part and the bracket connecting part are also connected by the first inclined pull part and the second inclined pull part. The first inclined pull part is located on the first side of the mounting position, and the second inclined pull part is located on the second side of the mounting position. The first side and the second side of the mounting position are arranged opposite to each other.

[0007] As can be seen from the above scheme, the mounting base of the servo rotary friction welding machine of this utility model is provided with a motor fixing part, a bracket connecting part, a first inclined brace and a second inclined brace. The first inclined brace and the second inclined brace transform the vertical connection between the motor fixing part and the bracket connecting part into a triangular mechanical structure. Through the tensile and compressive characteristics of the inclined brace, the load in the vertical direction is decomposed into the axial force of the inclined brace, thereby avoiding deformation of the mounting base and ensuring welding accuracy.

[0008] In a further embodiment, a groove is provided on the bottom of the motor mounting part facing away from the spin-welded motor assembly.

[0009] Therefore, setting a groove at the bottom of the motor mounting part can reduce the overall weight of the mounting base, thereby reducing the load on the lifting drive device.

[0010] In a further design, reinforcing ribs are provided at the bottom of the groove.

[0011] It is evident that the groove design reduces the cross-sectional area of ​​the material at the bottom of the motor mounting part, which may reduce its bending stiffness and torsional stiffness. Therefore, by using reinforcing ribs, the stiffness can be significantly improved with a small amount of material. Compared with the solution of thickening the base plate, this can reduce the amount of material used while meeting the strength requirements.

[0012] In a further embodiment, the side of the bracket connection that faces away from the mounting position is connected to the mounting bracket via a first guide rail assembly.

[0013] Therefore, the first guide rail assembly is used to connect the bracket connection part to the mounting bracket on the side facing away from the mounting position. The guide rail assembly restricts the horizontal displacement and rotation of the bracket connection part through the cooperation of the guide block and the guide rail, allowing it to move linearly in the vertical direction only, thus ensuring the accuracy and stability of the spin-melting motor assembly in the vertical direction.

[0014] In a further embodiment, the first guide rail assembly includes a first guide rail and a first guide block. The first guide rail is mounted on the bracket connection part, and the first guide block is mounted on the mounting bracket. The first guide block is slidably connected to the first guide rail.

[0015] Therefore, by setting the first guide rail and the first guide block, the straightness of the spin welding motor assembly in the direction of the plumb bob can be ensured, and the welding accuracy deviation caused by shaking can be avoided.

[0016] In a further embodiment, there are two first guide rail assemblies, which are arranged in parallel.

[0017] Therefore, by setting two first guide rail assemblies in parallel, the stability of the spin-melting motor assembly in the plumb direction can be further improved.

[0018] In a further embodiment, a first limiting block is provided on the side of the bracket connection facing away from the mounting position, and a second limiting block is provided on the mounting bracket. The first limiting block and the second limiting block are engaged in a limiting cooperation in the plumb direction.

[0019] Therefore, by setting the first limit block and the second limit block to cooperate in the upper limit direction of the plumb bob, it is possible to prevent the spin-melting motor assembly from moving beyond the limit stroke, which could lead to product damage.

[0020] In a further embodiment, the servo rotary friction welding machine also includes a servo motor, which is mounted on a mounting bracket. The drive end of the servo motor is connected to the bracket connection part, and the servo motor is used to drive the bracket connection part to move along the direction of the plumb bob.

[0021] Therefore, by setting the servo motor to drive the bracket connection to move along the plumb line, the stroke accuracy of the spin welding motor assembly can be further improved, thus improving the welding accuracy.

[0022] In a further embodiment, the column is equipped with a second guide rail, a drive motor, and a lead screw. Both the second guide rail and the lead screw extend along the direction of the plumb bob, and the drive motor drives the lead screw to rotate. The mounting bracket is equipped with a second guide block and a lead screw connector. The second guide block is slidably connected to the second guide rail, and the lead screw connector is screwed to the lead screw.

[0023] Therefore, by setting a second guide rail, a drive motor, and a lead screw on the column, and setting a second guide block and a lead screw connector on the mounting bracket, it is easy to drive the mounting bracket to move along the plumb line on the column by the drive motor, thereby adjusting the position of the spin-melting motor assembly.

[0024] In a further embodiment, a braking assembly is also provided on the mounting bracket, which is used to lock the mounting bracket to the second guide rail.

[0025] Therefore, by locking the mounting bracket with the braking component, the mounting bracket can be fixed at any height on the column, ensuring the stability of the fixed position. Attached Figure Description

[0026] Figure 1 This is a structural diagram of an embodiment of the servo rotary friction welding machine of this utility model.

[0027] Figure 2 This is an exploded view of an embodiment of the servo rotary friction welding machine of this utility model.

[0028] Figure 3 This is an installation structure diagram of the mounting bracket, mounting base, and rotary welding motor assembly in an embodiment of the servo rotary friction welding machine of this utility model.

[0029] Figure 4 This is an installation structure diagram of the braking assembly, lead screw, second guide rail assembly, and mounting bracket in an embodiment of the servo rotary friction welding machine of this utility model.

[0030] Figure 5 This is an exploded view of the braking component in an embodiment of the servo rotary friction welding machine of this utility model.

[0031] Figure 6 This is a sectional view of the braking component in the disassembled state in an embodiment of the servo rotary friction welding machine of this utility model.

[0032] Figure 7 This is a cross-sectional view of the brake assembly and the second guide rail in the installation state of an embodiment of the servo rotary friction welding machine of this utility model.

[0033] Figure 8 This is a structural cross-sectional view of the mounting bracket and mounting base in an embodiment of the servo rotary friction welding machine of this utility model.

[0034] Figure 9 This is an exploded view of the mounting bracket, mounting base, and rotary welding motor assembly in an embodiment of the servo rotary friction welding machine of this utility model.

[0035] Figure 10 This is a structural diagram of the mounting base from one perspective in an embodiment of the servo rotary friction welding machine of this utility model.

[0036] Figure 11 This is a structural diagram of the mounting base from another perspective in an embodiment of the servo rotary friction welding machine of this utility model.

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0038] Example of a servo rotary friction welding machine:

[0039] like Figure 1 As shown, in this embodiment, the servo rotary friction welding machine includes a column 1, a mounting bracket 2, a mounting base 3, and a rotary welding motor assembly 4. The mounting bracket 2 is mounted on the column 1 and can move along the direction of the plumb bob on the column 1. The mounting base 3 is mounted on the mounting bracket 2 and can move along the direction of the plumb bob on the mounting bracket 2. The rotary welding motor assembly 4 is mounted on the mounting base 3.

[0040] In this embodiment, see Figure 2 The mounting bracket 2 is mounted on the column 1 via the second guide rail assembly 6. The second guide rail assembly 6 includes a second guide rail 61 and a second guide block 62. The second guide rail 61 extends along the plumb line and is mounted on the column 1. The second guide block 62 is mounted on the mounting bracket 2 and is slidably connected to the second guide rail 61.

[0041] A drive motor 11 and a lead screw 12 are mounted on the column 1. The lead screw 12 extends along the direction of the plumb bob, and the drive motor 11 drives the lead screw 12 to rotate. A lead screw connector 21 is mounted on the mounting bracket 2. The lead screw connector 21 has a screw hole 211, and the lead screw connector 21 is screwed to the lead screw 12 through the screw hole 211. By setting a second guide rail 61, a drive motor 11, and a lead screw 12 on the column 1, and a second guide block 62 and a lead screw connector 21 on the mounting bracket 2, it is convenient to drive the mounting bracket 2 to move along the direction of the plumb bob on the column 1 via the drive motor 11, thereby adjusting the position of the spin-melting motor assembly 4.

[0042] See Figure 3 and Figure 4 The mounting bracket 2 is also equipped with a braking assembly 22, which is used to lock the mounting bracket 2 to the second guide rail 61. By locking the mounting bracket 2 with the braking assembly 22, the mounting bracket 2 can be fixed at any height of the column 1, ensuring the stability of the fixed position.

[0043] In this embodiment, see Figure 5 , Figure 6 and Figure 7 The braking assembly 22 includes a brake handle 221, a brake block 222, and a fixing block 223. The fixing block 223 is provided with a receiving cavity 2231, a guide rail groove 2232, and a threaded blind hole 2233. The receiving cavity 2231 communicates with the guide rail groove 2232 and extends from the first side of the fixing block 223 to the guide rail groove 2232. The brake block 222 is inserted into the receiving cavity 2231. The threaded blind hole 2233 is provided in the receiving cavity 2231. The brake block 222 is provided with a through hole 2221 coaxial with the threaded blind hole 2233. The brake handle 221 is provided with a bolt part 2211 and a handle part 2212. The bolt part 2211 and the handle part 2212 are connected. The bolt part 2211 passes through the through hole 2221 and engages with the threaded blind hole 2233. When it is necessary to lock the mounting bracket 2 and the second guide rail 61, the bolt part 2211 is rotated by the handle part 2212, so that the bolt part 2211 is screwed into the threaded blind hole 2233, and the handle part 2212 pushes the brake block 222 toward the guide rail slot 2232, thereby abutting against the second guide rail 61 for locking.

[0044] See Figure 8 , Figure 9 and Figure 10The mounting base 3 includes a motor fixing part 31, a bracket connecting part 32, a first inclined pull part 33, and a second inclined pull part 34. The motor fixing part 31, the bracket connecting part 32, the first inclined pull part 33, and the second inclined pull part 34 form a mounting position 35 for the spin-melting motor assembly 4. The spin-melting motor assembly 4 is mounted on the motor fixing part 31. The bracket connecting part 32 can move along the plumb line on the mounting bracket 2. The motor fixing part 31 and the bracket connecting part 32 are vertically connected. The motor fixing part 31 and the bracket connecting part 32 are also connected by the first inclined pull part 33 and the second inclined pull part 34. The first inclined pull part 33 is located on the first side of the mounting position 35, and the second inclined pull part 34 is located on the second side of the mounting position 35. The first side and the second side of the mounting position 35 are arranged opposite to each other.

[0045] The bracket connecting part 32, facing away from the mounting position 35, is connected to the mounting bracket 2 via a first guide rail assembly 7. The first guide rail assembly 7 includes a first guide rail 71 and a first guide block 72. The first guide rail 71 is mounted on the bracket connecting part 32, and the first guide block 72 is mounted on the mounting bracket 2, with the first guide block 72 slidably connected to the first guide rail 71. The first guide rail assembly 7 connects the bracket connecting part 32 to the mounting bracket 2 on the side facing away from the mounting position 35. Through the cooperation of the first guide block and the first guide rail 71, the guide rail assembly restricts the horizontal displacement and rotation of the bracket connecting part 32, allowing it to move linearly only in the plumb direction, ensuring the accuracy and stability of the spin-melting motor assembly 4 in the plumb direction. Preferably, there are two first guide rail assemblies 7, arranged in parallel. By arranging two first guide rail assemblies 7 in parallel, the stability of the spin-melting motor assembly 4 in the plumb direction can be further improved.

[0046] In this embodiment, see Figure 11 A groove 36 is provided at the bottom of the motor mounting part 31 facing away from the spin-welded motor assembly 4. Providing a groove 36 at the bottom of the motor mounting part 31 reduces the overall weight of the mounting base 3, thereby reducing the load on the lifting drive device. A reinforcing rib 37 is provided at the bottom of the groove 36. Since the groove 36 design reduces the material cross-sectional area at the bottom of the motor mounting part 31, potentially reducing its bending and torsional stiffness, the reinforcing rib 37 compensates for this, significantly increasing stiffness with a small amount of material. Compared to thickening the base plate, this reduces material usage while still meeting strength requirements.

[0047] A first limiting block 38 is provided on the side of the bracket connecting part 32 facing away from the mounting position 35, and a second limiting block 23 is provided on the mounting bracket 2. The first limiting block 38 and the second limiting block 23 are engaged in a limiting fit in the plumb direction. By setting the first limiting block 38 and the second limiting block 23 to engage in a limiting fit in the plumb direction, the movement of the spin-melting motor assembly 4 beyond the limited stroke can be prevented, which would cause damage to the product.

[0048] In addition, by Figure 2 and Figure 3 As can be seen, the servo rotary friction welding machine also includes a servo motor 5, which is mounted on the mounting bracket 2. The drive end of the servo motor 5 is connected to the bracket connection part 32, and the servo motor 5 is used to drive the bracket connection part 32 to move along the plumb line. By setting the servo motor 5 to drive the bracket connection part 32 to move along the plumb line, the stroke accuracy of the rotary welding motor assembly 4 can be further improved, thereby improving the welding accuracy.

[0049] As can be seen from the above, the mounting base 3 of the servo rotary friction welding machine of this utility model is provided with a motor fixing part 31, a bracket connecting part 32, a first inclined brace part 33 and a second inclined brace part 34. The first inclined brace part 33 and the second inclined brace part 34 are used to transform the vertical connection between the motor fixing part 31 and the bracket connecting part 32 into a triangular mechanical structure. Through the tensile and compressive characteristics of the inclined brace, the load in the vertical direction is decomposed into the axial force of the inclined brace part, thereby avoiding deformation of the mounting base 3 and ensuring welding accuracy.

[0050] It should be noted that the above are only preferred embodiments of the present utility model, but the design concept of the utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall also fall within the protection scope of the present utility model.

Claims

1. A servo-rotary friction welding machine characterized by: It includes a column, a mounting bracket, a mounting base, and a spin-welding motor assembly, wherein the mounting bracket is mounted on the column, and the mounting base is mounted on the mounting bracket; The mounting base includes a motor fixing part, a bracket connecting part, a first inclined pull part, and a second inclined pull part. The motor fixing part, the bracket connecting part, the first inclined pull part, and the second inclined pull part form a mounting position for the spin-melted motor assembly. The spin-melted motor assembly is mounted on the motor fixing part. The bracket connecting part can move along the plumb line on the mounting bracket. The motor fixing part and the bracket connecting part are perpendicularly connected. The motor fixing part and the bracket connecting part are also connected through the first inclined pull part and the second inclined pull part. The first inclined pull part is located on the first side of the mounting position, and the second inclined pull part is located on the second side of the mounting position. The first side and the second side of the mounting position are arranged opposite to each other.

2. The servo rotary friction welding machine according to claim 1, characterized in that: The motor fixing part has a groove on the bottom facing away from the spin-melting motor assembly.

3. The servo rotary friction welding machine according to claim 2, characterized in that: The bottom of the groove is provided with reinforcing ribs.

4. The servo rotary friction welding machine according to any one of claims 1 to 3, characterized in that: The side of the bracket connecting part facing away from the mounting position is connected to the mounting bracket via a first guide rail assembly.

5. The servo rotary friction welding machine according to claim 4, characterized in that: The first guide rail assembly includes a first guide rail and a first guide block. The first guide rail is mounted on the bracket connection part, and the first guide block is mounted on the mounting bracket. The first guide block is slidably connected to the first guide rail.

6. The servo rotary friction welding machine according to claim 5, characterized in that: There are two first guide rail assemblies, and the two first guide rail assemblies are arranged in parallel.

7. The servo rotary friction welding machine according to any one of claims 1 to 3, characterized in that: The bracket connecting part is provided with a first limiting block on the side facing away from the mounting position, and the mounting bracket is provided with a second limiting block. The first limiting block and the second limiting block are engaged in a limiting cooperation in the plumb direction.

8. The servo rotary friction welding machine according to any one of claims 1 to 3, characterized in that: The servo rotary friction welding machine also includes a servo motor, which is mounted on the mounting bracket. The drive end of the servo motor is connected to the bracket connection part, and the servo motor is used to drive the bracket connection part to move along the plumb line.

9. The servo rotary friction welding machine according to any one of claims 1 to 3, characterized in that: The column is provided with a second guide rail, a drive motor and a lead screw. The second guide rail and the lead screw both extend along the direction of the plumb bob. The drive motor drives the lead screw to rotate. The mounting bracket is provided with a second guide block and a lead screw connector. The second guide block is slidably connected to the second guide rail, and the lead screw connector is screwed to the lead screw.

10. The servo-rotary friction welding machine of claim 9, wherein: The mounting bracket is further provided with a brake assembly, and the brake assembly is used for locking the mounting bracket and the second guide rail.

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