Mechanical part machining and welding device

Abstract

The utility model relates to the technical field of mechanical part welding, in particular to a mechanical part machining and welding device which comprises a base, two L-shaped parts and an L-shaped welding support are symmetrically arranged at the top of the base, and a first welding head and a second welding head are connected to the welding support in a sliding mode. Clamping plates are symmetrically and slidably connected to the top of the base, pressing columns are symmetrically and rotatably connected to one side of the top of the base, and back plates are symmetrically fixed to the other side of the top of the base; a driving assembly is mounted in the welding bracket; according to the mechanical part machining and welding device, the clamping plate and the pressing column are driven by the clamping assembly to move synchronously, L-shaped parts are stably fixed in cooperation with the back plate, the two welding heads are driven by the driving assembly to move synchronously to complete welding, and the welding device can be adjusted through the rotary knob to adapt to parts with different lengths; the device has the advantages of being firm in fixation, synchronous and efficient in welding, high in adaptability and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical parts welding, in particular to a mechanical parts processing and welding device. Background Art

[0002] Mechanical parts processing and welding equipment is a special equipment used for welding mechanical parts (such as L-shaped parts, etc.). Its main function is to fix the position of the parts to be welded and drive the welding head to perform welding operations on the interface of the parts, thereby realizing the connection and forming of the parts. It is widely used in mechanical manufacturing, automobile production, engineering machinery and other fields, providing efficient and stable welding process support for the assembly of various mechanical structures.

[0003] Existing mechanical parts processing and welding devices have many shortcomings in practical applications. First, the fixing effect of parts is poor, and fixation is often achieved only through clamping in a single direction or a simple pressing structure. It is difficult to adapt to the complex structure of special-shaped parts such as L-shaped parts. During the welding process, the interface alignment accuracy is easily reduced due to loosening or displacement of parts, affecting the welding quality; second, the welding synchronization and adaptability are insufficient. The multiple welding heads of most devices need to be driven separately, and it is difficult to ensure that the welding actions of different interfaces of the parts are completely synchronized. It is easy to cause stress concentration and deformation of the parts due to differences in welding timing or progress; at the same time, for L-shaped parts of different sizes, the position adjustment of the welding head is mostly independent operation, lacking a linkage mechanism. The adjustment process is cumbersome and the accuracy is difficult to control, which greatly increases the changeover time and restricts production continuity.

[0004] Therefore, it is necessary to provide a new mechanical parts processing and welding device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a mechanical parts processing and welding device.

[0006] The mechanical parts processing and welding device provided by the utility model includes: a base, two identical L-shaped parts are symmetrically placed on the top of the base; a welding bracket is fixedly connected to the middle of the base, and the welding bracket is L-shaped; the welding bracket is slidably connected to a first welding head and a second welding head on one side of the welding bracket close to the L-shaped part, the first welding head is located at the bottom of the L-shaped part, and the second welding head is located on one side of the L-shaped part; a clamping plate is symmetrically slidably connected to the top of the base, and the clamping plate is used to push the two L-shaped parts to align so that the interfaces of the two L-shaped parts are aligned with the first welding head and the second welding head; a pressure column is symmetrically rotated on one side of the top of the base, and a back plate is symmetrically fixed on the other side of the top of the base, and the pressure column squeezes the corner of the L-shaped part so that the L-shaped part is tightly attached to the back plate; the clamping plate, pressure column and back plate jointly realize the fixing of the L-shaped part; a clamping assembly is installed inside the base, and the clamping assembly is used to drive the clamping plate and the pressure column to move synchronously to achieve the fixing of the L-shaped part; a driving assembly is installed inside the welding bracket, and the driving assembly is used to drive the first welding head and the second welding head to move synchronously to achieve welding of the L-shaped part.

[0007] Preferably, the clamping assembly includes: a threaded rod; a first sliding groove is symmetrically opened on the top of the base, the bottom end of the splint slides in the first sliding groove, the threaded rod is rotatably arranged inside the first sliding groove, and the threaded rod is threadedly connected to the bottom end of the splint; one end of the pressure column is fixedly connected to a gear, and the inside of the base is symmetrically slidably connected to a rack, and the gear and the rack are meshed; the inside of the rack is rotatably connected to a hollow stud, and the inside of the rack is slidably connected to a slider, and the slider is threadedly connected to the outer wall of the hollow stud; one end of the bottom of the splint is rotatably connected to a connecting rod, and one end of the connecting rod is rotatably connected to the slider.

[0008] Preferably, the driving assembly includes: an active screw; the active screw is rotatably arranged at the bottom of the welding bracket, and the active screw is threadedly connected to the first welding head; one side of the welding bracket is rotatably connected to a driven screw, and the driven screw is threadedly connected to the second welding head; one end of the active screw is fixedly connected to a driving bevel wheel, and the bottom of the driven screw is fixedly connected to a driven bevel wheel, and the active bevel wheel is meshed with the driven bevel wheel.

[0009] Preferably, a spline rod is symmetrically rotatably connected inside the base, and the spline rod is slidingly connected to the inner wall of the hollow stud via a spline.

[0010] Preferably, one end of the spline rod extends out of the base and is rotatably connected to a knob, and an outer wall of the knob is provided with anti-slip grooves.

[0011] Preferably, a clamping motor is symmetrically fixedly connected to the interior of the base, and an output end of the clamping motor is fixedly connected to the threaded rod.

[0012] Preferably, both the active screw and the driven screw are reciprocating screws.

[0013] Preferably, a driving motor is fixedly connected to the interior of the welding bracket, and an output end of the driving motor is fixedly connected to the active screw rod.

[0014] Compared with the related art, the mechanical parts processing and welding device provided by the present invention has the following beneficial effects:

[0015] The fixing effect is stable and the welding accuracy is improved

[0016] The utility model realizes three-dimensional fixation of L-shaped parts through the coordinated action of the splint, pressure column and back plate, solving the problem of weak fixation of the single clamping structure of the existing device; the splint slides along the first slide groove under the drive of the clamping assembly, pushing the two L-shaped parts to align, ensuring that the interface is accurately aligned with the welding head; the pressure column squeezes the corners of the parts under the transmission of the rack and gear, and cooperates with the back plate to achieve close fit of the side of the part; this multi-directional fixing method can effectively avoid loosening or displacement of parts during welding, significantly improve the interface alignment accuracy, and fundamentally guarantee the welding quality; at the same time, the clamping assembly realizes the synchronous movement of the splint and the pressure column through structures such as threaded rods, connecting rods, racks, etc., reduces the errors of independent operation of multiple components, and further enhances the stability of fixation.

[0017] Welding is synchronous and efficient, reducing part deformation

[0018] The driving assembly adopts the meshing transmission of the active bevel gear and the driven bevel gear, so that the active screw and the driven screw rotate synchronously, driving the first welding head (bottom) and the second welding head (side) to move synchronously, realizing the synchronous welding of the bottom and side interfaces of the L-shaped part; compared with the poor synchronization problem caused by the separate driving of multiple welding heads in the existing device, the movement speed and stroke of the dual welding heads of the utility model are completely consistent, avoiding the stress concentration of the parts caused by differences in welding timing or progress; in addition, the active screw and the driven screw are both reciprocating screws, which can drive the welding head to automatically complete the secondary welding reinforcement. While improving the welding strength, there is no need to adjust the welding head position additionally, which greatly improves the welding efficiency and ensures the structural integrity of the parts.

[0019] Strong adaptability, shortening changeover time

[0020] For L-shaped parts of different lengths, the utility model realizes rapid adjustment through the cooperation of the spline rod, hollow stud and knob; when the size of the part changes, rotating the knob can drive the spline rod to drive the hollow stud to rotate, and through the linkage of the slider and the connecting rod, the relative position of the clamping plate and the pressure column is adjusted synchronously to ensure that the clamping assembly always adapts to the part size; this linkage adjustment mechanism solves the problem of cumbersome and low-precision independent adjustment of the welding head or clamping parts of the existing device, and can complete the switching of parts of different specifications without multiple debugging, which significantly shortens the changeover time, enhances the adaptability of the device to diversified production needs, and effectively improves production continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the mechanical parts processing and welding device provided by the utility model;

[0022] Figure 2 for Figure 1 A schematic cross-sectional view of the base shown;

[0023] Figure 3 for Figure 2 The schematic diagram of the gear structure shown;

[0024] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the rack shown;

[0025] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the welding bracket shown.

[0026] Numbers in the figure: 1. Base; 2. L-shaped part; 3. Welding bracket; 4. First welding head; 5. Second welding head; 6. Clamp; 7. Pressure column; 8. Back plate; 9. Threaded rod; 10. First slide groove; 11. Gear; 12. Rack; 13. Hollow stud; 14. Slider; 15. Connecting rod; 16. Spline rod; 17. Knob; 18. Clamping motor; 19. Active screw; 20. Driven screw; 21. Active bevel gear; 22. Driven bevel gear; 23. Drive motor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0029] See also Figures 1 to 5, a mechanical parts processing and welding device, the mechanical parts processing and welding device comprises: a base 1, two identical L-shaped parts 2 are symmetrically placed on the top of the base 1; a welding bracket 3 is fixedly connected to the middle of the base 1, and the welding bracket 3 is L-shaped; the welding bracket 3 is slidably connected to a first welding head 4 and a second welding head 5 on the side close to the L-shaped part 2, the first welding head 4 is located at the bottom of the L-shaped part 2, and the second welding head 5 is located on one side of the L-shaped part 2; a clamping plate 6 is symmetrically slidably connected to the top of the base 1, and the clamping plate 6 is used to push the two L-shaped parts 2 to align, so that the interfaces of the two L-shaped parts 2 are aligned with the first The welding head 4 and the second welding head 5; a pressure column 7 is symmetrically connected to the top of the base 1 on one side, and a back plate 8 is symmetrically fixedly connected to the other side of the top of the base 1. The pressure column 7 squeezes the corner of the L-shaped part 2 so that the L-shaped part 2 is tightly attached to the back plate 8; the clamping plate 6, the pressure column 7, and the back plate 8 jointly fix the L-shaped part 2; a clamping assembly is installed inside the base 1, and the clamping assembly is used to drive the clamping plate 6 and the pressure column 7 to move synchronously to fix the L-shaped part 2; a driving assembly is installed inside the welding bracket 3, and the driving assembly is used to drive the first welding head 4 and the second welding head 5 to move synchronously to achieve welding of the L-shaped part 2.

[0030] It should be noted that the first welding head 4 and the second welding head 5 move along the interface of the two L-shaped parts 2 .

[0031] See also Figures 1 to 4 The clamping assembly includes: a threaded rod 9; a first slide groove 10 is symmetrically opened on the top of the base 1, the bottom end of the splint 6 slides in the first slide groove 10, the threaded rod 9 is rotatably set inside the first slide groove 10, and the threaded rod 9 is threadedly connected to the bottom end of the splint 6; one end of the pressure column 7 is fixedly connected to a gear 11, and the interior of the base 1 is symmetrically slidably connected to a rack 12, and the gear 11 is meshed with the rack 12; the rack 12 is internally rotatably connected to a hollow stud 13, and the rack 12 is internally slidably connected to a slider 14, and the slider 14 is connected to the hollow The outer wall of the core stud 13 is threadedly connected; one end of the bottom of the splint 6 is rotatably connected to the connecting rod 15, and one end of the connecting rod 15 is rotatably connected to the slider 14; the inside of the base 1 is symmetrically rotatably connected to the spline rod 16, and the spline rod 16 is slidably connected to the inner wall of the hollow stud 13 through a spline; one end of the spline rod 16 extends out of the base 1 and is rotatably connected to the knob 17, and the outer wall of the knob 17 is provided with anti-slip grooves; the inside of the base 1 is symmetrically fixedly connected to the clamping motor 18, and the output end of the clamping motor 18 is fixedly connected to the threaded rod 9.

[0032] It should be noted that the anti-slip grooves of the knob 17 improve the practicality of the knob 17 , and the spline rod 16 can only drive the hollow stud 13 to rotate.

[0033] See also Figure 1 and Figure 5The driving assembly includes: an active screw 19; the active screw 19 is rotatably arranged at the bottom of the welding bracket 3, and the active screw 19 is threadedly connected to the first welding head 4; one side of the welding bracket 3 is rotatably connected to a driven screw 20, and the driven screw 20 is threadedly connected to the second welding head 5; one end of the active screw 19 is fixedly connected to a driving bevel wheel 21, and the bottom of the driven screw 20 is fixedly connected to a driven bevel wheel 22, and the active bevel wheel 21 is meshed with the driven bevel wheel 22; the active screw 19 and the driven screw 20 are both reciprocating screws; a driving motor 23 is fixedly connected to the inside of the welding bracket 3, and the output end of the driving motor 23 is fixedly connected to the active screw 19.

[0034] It should be noted that both the active screw rod 19 and the driven screw rod 20 are reciprocating screw rods. When secondary welding is required, the operation can be completed without reversing the motor.

[0035] The working principle of the mechanical parts processing and welding device provided by the utility model is as follows:

[0036] Clamping process:

[0037] The core of the clamping process is to use the clamping assembly to drive the clamping plate 6 and the pressure column 7 to move synchronously, and cooperate with the back plate 8 to achieve a stable fixation of the L-shaped part 2, thereby ensuring that the welding interface can be accurately aligned with the welding head;

[0038] When the clamping motor 18 is started synchronously, power is transmitted to the clamping assembly: the output end of the clamping motor 18 drives the threaded rod 9 to rotate. Since the threaded rod 9 is threadedly connected to the bottom end of the clamping plate 6, and the clamping plate 6 is confined in the first slide groove 10, the rotational movement of the threaded rod 9 is converted into horizontal sliding of the clamping plate 6 along the first slide groove 10; the clamping plates 6 on both sides move synchronously toward the center, pushing the two L-shaped parts 2 closer to each other, completing the centering adjustment of the interface and ensuring that the part interface is accurately aligned with the first welding head 4 (bottom) and the second welding head 5 (side);

[0039] As the two clamping plates 6 approach each other, the connecting rod 15 at one end of their bottom pushes the slider 14 to move toward the knob 17. Because the slider 14 is threadedly connected to the outer wall of the hollow stud 13, and the inner wall of the hollow stud 13 is slidably connected to the spline rod 16, the slider 14 drives the rack 12 to slide along the spline rod 16 inside the base 1 through the hollow stud 13. During the sliding process of the rack 12, the gear 11 is rotated, which in turn causes the pressure column 7 to rotate toward the corner of the L-shaped part 2 and apply a squeezing force, forcing the L-shaped part 2 to fit tightly against the fixed back plate 8.

[0040] Finally, the centering thrust of the clamping plate 6, the corner squeezing force of the pressure column 7 and the supporting force of the back plate 8 form a three-dimensional fixing effect, firmly locking the L-shaped part 2 in the welding position, providing a stable reference for subsequent welding operations.

[0041] Welding process:

[0042] During the welding process, the driving assembly drives the first welding head 4 and the second welding head 5 to move synchronously to complete the automated welding of the interface of the L-shaped part 2;

[0043] After the drive motor 23 is started, its output end drives the active screw 19 to rotate; because the active screw 19 is threadedly connected to the first welding head 4, and the first welding head 4 is confined within the sliding track of the welding bracket 3, the rotation of the active screw 19 drives the first welding head 4 to move horizontally along the bottom of the welding bracket 3 to weld the bottom interface of the L-shaped part 2;

[0044] At the same time, the active bevel wheel 21 at one end of the active screw 19 meshes with the driven bevel wheel 22 at the bottom of the driven screw 20. The rotation of the active screw 19 drives the driven screw 20 to rotate synchronously through the bevel wheel transmission. The driven screw 20 is threadedly connected to the second welding head 5, and the second welding head 5 is confined in the side track of the welding bracket 3. Therefore, the rotation of the driven screw 20 is converted into a vertical movement of the second welding head 5 along the side of the welding bracket 3 to weld the side interface of the L-shaped part 2.

[0045] Since both the active screw 19 and the driven screw 20 are reciprocating screws, the two welding heads will automatically move in the opposite direction after moving to the end of the interface, achieving secondary welding reinforcement of the interface and further improving the welding strength. During the entire process, the movement speed and stroke of the two welding heads are completely synchronized, ensuring that the welding progress of the bottom and side interfaces is consistent, effectively avoiding part deformation caused by asynchronous welding.

[0046] If secondary welding is not required, the welding work is completed when the two welding heads move to the end of the interface. At this time, the welded L-shaped part 2 can be taken out, and a new L-shaped part 2 can be placed and clamped. The two welding heads can be moved in the opposite direction to perform the welding operation again.

[0047] Adjustment process:

[0048] When the length of the L-shaped part 2 changes, the linkage relationship of the clamping assembly can be adjusted by the knob 17 to ensure that the device can still achieve stable fixation of the part;

[0049] When the new L-shaped part 2 is longer, it is placed on the base 1 and the clamping motor 18 is started to drive the clamping assembly so that the clamping plate 6 moves closer to the L-shaped part 2. When the clamping plate 6 clamps the L-shaped part 2, if the pressure column 7 has not reached the corner of the part, the knob 17 is rotated counterclockwise at this time, and the knob 17 drives the hollow stud 13 to rotate through the spline rod 16, so that the slider 14 has a movement trend away from the knob 17. Since the length of the connecting rod 15 is fixed, and the position of the clamping plate 6 remains unchanged at this time, the distance between the clamping plate 6 and the spline rod 16 is constant, and the hollow stud 13 is slidably connected to the spline rod 16, the length of one hypotenuse and one right-angled side of the right-angled triangle formed by the axis of the spline rod 16, the axis of the threaded rod 9, and the connecting rod 15 is determined, and the triangle shape is uniquely fixed, so the position of the slider 14 remains unchanged. At this time, the hollow stud 13 will drive the rack 12 to move along the spline rod 16 in the direction close to the knob 17 until the pressure column 7 reaches the corner of the L-shaped part 2.

[0050] When the new L-shaped part 2 is shorter, it is placed on the base 1, and the clamping motor 18 is started to drive the clamping assembly to make the pressure column 7 approach the L-shaped part 2; when the pressure column 7 reaches the corner of the part, if the spline 6 has not yet contacted the part, the knob 17 is rotated clockwise at this time. As mentioned above, in the right triangle formed by the axis of the spline rod 16, the axis of the threaded rod 9, and the connecting rod 15, the pressure column 7 cannot continue to rotate, and the position of the rack 12 remains unchanged. The slider 14 will slide in the rack 12 toward the direction close to the knob 17, and drive the splint 6 to approach the L-shaped part 2 through the connecting rod 15.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mechanical parts processing and welding device, characterized in that: include: A base (1), wherein two identical L-shaped parts (2) are symmetrically placed on the top of the base (1); a welding bracket (3) is fixedly connected to the middle of the base (1), and the welding bracket (3) is L-shaped; a first welding head (4) and a second welding head (5) are slidably connected to the side of the welding bracket (3) close to the L-shaped part (2), the first welding head (4) is located at the bottom of the L-shaped part (2), and the second welding head (5) is located on one side of the L-shaped part (2); a clamping plate (6) is symmetrically slidably connected to the top of the base (1), and the clamping plate (6) is used to push the two L-shaped parts (2) to align so that the interfaces of the two L-shaped parts (2) are aligned with the first welding head (4) and the second welding head (5); the base (1 ) is symmetrically connected to a pressure column (7) on one side of the top of the base (1), and is symmetrically fixedly connected to a back plate (8) on the other side of the top of the base (1). The pressure column (7) squeezes the corner of the L-shaped part (2) so that the L-shaped part (2) and the back plate (8) are in close contact; the clamping plate (6), the pressure column (7), and the back plate (8) together fix the L-shaped part (2); a clamping assembly is installed inside the base (1), and the clamping assembly is used to drive the clamping plate (6) and the pressure column (7) to move synchronously to fix the L-shaped part (2); a driving assembly is installed inside the welding bracket (3), and the driving assembly is used to drive the first welding head (4) and the second welding head (5) to move synchronously to achieve welding of the L-shaped part (2).

2. The mechanical parts processing and welding device according to claim 1, characterized in that: The clamping assembly comprises: a threaded rod (9); a first sliding groove (10) is symmetrically opened on the top of the base (1); the bottom end of the clamping plate (6) slides in the first sliding groove (10); the threaded rod (9) is rotatably arranged inside the first sliding groove (10), and the threaded rod (9) is threadedly connected to the bottom end of the clamping plate (6); one end of the pressure column (7) is fixedly connected to a gear (11), and the base (1) is symmetrically slidably connected to a rack (12) inside, and the gear (11) is meshed with the rack (12); the rack (12) is rotatably connected to a hollow stud (13) inside, and the rack (12) is slidably connected to a slider (14) inside, and the slider (14) is threadedly connected to the outer wall of the hollow stud (13); one end of the bottom of the clamping plate (6) is rotatably connected to a connecting rod (15), and one end of the connecting rod (15) is rotatably connected to the slider (14).

3. The mechanical parts processing and welding device according to claim 1, characterized in that: The driving assembly comprises: an active screw (19); the active screw (19) is rotatably arranged at the bottom of the welding bracket (3), and the active screw (19) is threadedly connected to the first welding head (4); a driven screw (20) is rotatably connected to one side of the welding bracket (3), and the driven screw (20) is threadedly connected to the second welding head (5); one end of the active screw (19) is fixedly connected to the active cone wheel (21), and the bottom of the driven screw (20) is fixedly connected to the driven cone wheel (22), and the active cone wheel (21) is meshed with the driven cone wheel (22).

4. The mechanical parts processing and welding device according to claim 2, characterized in that: The base (1) is internally symmetrically rotatably connected with a spline rod (16), and the spline rod (16) is slidably connected to the inner wall of the hollow stud (13) via a spline.

5. The mechanical parts processing and welding device according to claim 4, characterized in that: One end of the spline rod (16) extends out of the base (1) and is rotatably connected to a knob (17), and an outer wall of the knob (17) is provided with anti-slip grooves.

6. The mechanical parts processing and welding device according to claim 2, characterized in that: A clamping motor (18) is symmetrically fixedly connected inside the base (1), and an output end of the clamping motor (18) is fixedly connected to the threaded rod (9).

7. The mechanical parts processing and welding device according to claim 3, characterized in that: Both the active screw rod (19) and the driven screw rod (20) are reciprocating screw rods.

8. The mechanical parts processing and welding device according to claim 7, characterized in that: A driving motor (23) is fixedly connected to the interior of the welding bracket (3), and an output end of the driving motor (23) is fixedly connected to the active screw rod (19).

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