A full-automatic vehicle welding and press-fitting integrated machine

Abstract

The utility model relates to mechanical processing equipment technical field discloses a kind of full-automatic vehicle welding press-fitting integrated machine, including lathe base, adjusting assembly fixed in lathe base and two groups of processing assemblies symmetrically arranged on adjusting assembly. Adjusting assembly includes lower slide, upper slide, two-way screw rod one and two-way screw rod two. Two-way screw rod is driven two groups of processing assemblies synchronous movement by screw nut transmission cooperation with slide, so as to realize the turning of workpiece, automatic centering press-fitting and in situ welding. Processing assembly is integrally provided with lathe spindle, turning tool and welding torch. The device further includes a flat spin spindle for finishing after welding. The utility model highly integrates turning, press-fitting, welding and finishing, etc. multiple processes, compact structure, high degree of automation, effectively solves the problem of process separation, low production efficiency and large cumulative error in the prior art, significantly improves the processing efficiency and product precision.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a fully automatic integrated turning, welding and pressing machine. Background Technology

[0002] In modern mechanical manufacturing, the production of many critical components, such as flanged shafts or tubular members requiring sealing at both ends, typically involves multiple independent machining processes. These processes generally include turning the individual sub-components to obtain precise mating dimensions, then press-fitting them together, and finally welding them securely together as a whole.

[0003] In the existing production model, the aforementioned turning, press-fitting, and welding processes are typically completed separately by multiple dedicated machines with single functions. For example, the workpiece first needs to be turned on a lathe, then transferred to a press for press-fitting, and finally moved to a welding workstation or welded by a welding robot. This multi-equipment, multi-station production method is currently the mainstream practice in the industry.

[0004] However, this production method, which separates processes, has inherent shortcomings. First, the repeated transfer, hoisting, and repositioning of workpieces between different devices consumes a significant amount of time, resulting in long production cycles and low overall efficiency. Second, each repositioning introduces new positioning errors, which accumulate and ultimately affect key accuracy indicators such as coaxiality and perpendicularity of the product. Furthermore, multiple machines not only occupy a large amount of production workshop space but also make achieving full-process automation control more complex and expensive. Therefore, this invention proposes a fully automatic integrated turning, welding, and pressing machine to address the shortcomings of existing technologies. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fully automatic turning, welding and pressing integrated machine, which aims to improve the problem that in some existing fully automatic turning, welding and pressing integrated machines, turning, pressing and welding need to be completed step by step by multiple machines, resulting in a long production process, low degree of automation and easy accumulation of errors.

[0006] This utility model provides a fully automatic machining, welding and pressing integrated machine, including a machine tool base and an adjustment component fixedly connected to the top of the machine tool base; the adjustment component includes a lower slide plate and an upper slide plate slidably connected to the top of the lower slide plate along a predetermined guide path.

[0007] The device also includes two sets of symmetrically arranged processing components, as well as two bidirectional lead screws, one and two bidirectional lead screws, for driving the movement of the adjustment components.

[0008] Among them, the first bidirectional lead screw and the lower slide plate form a lead screw and nut transmission connection, and the second bidirectional lead screw and the upper slide plate form a lead screw and nut transmission connection.

[0009] Furthermore, the two sets of processing components are fixedly connected to the opposite ends of the upper slide plate. Through the synchronous rotation of the first and second bidirectional lead screws, the two sets of processing components can be driven to move stably towards or away from each other under the influence of the adjustment components, thereby integrating the independent processing unit, pressing unit and motion unit into an integrated structure.

[0010] Preferably, the machining assembly includes a turning spindle for clamping and rotating the workpiece, a turning tool fixedly mounted on the machining assembly for turning the workpiece, and a welding torch fixedly mounted on the machining assembly and adjacent to the working area of ​​the turning spindle. This layout allows turning, pressing and welding preparation to be completed at the same station, achieving internal integration of functions.

[0011] Preferably, the device further includes a pulse welding machine and an electric welding wire feeder. The pulse welding machine is fixedly connected to the outside of the machine tool base and electrically connected to the welding torch. The electric welding wire feeder is fixedly connected to the top of the machine tool base and communicates with the welding torch through a wire feeding pipe. Together with the welding torch, these two constitute a complete automated welding system, providing the necessary support for in-situ welding.

[0012] Preferably, the device also includes a rotary spindle fixedly connected to the outside of the machine tool base. The machining axis of the rotary spindle is parallel to the rotation axis of the turning spindle. This structure is specifically used for the final end face finishing of the welded workpiece. It is a key supplementary process to ensure the accuracy of the final product and to eliminate the effects of welding heat deformation.

[0013] Preferably, in order to improve the stability and accuracy of the movement, the top of the lower slide plate is provided with two parallel guide rails, and the bottom of the upper slide plate is provided with a slider that slides with the guide rails. This classic guide rail and slider structure ensures the stability and guiding accuracy of the upper slide plate during the movement of the processing components.

[0014] Preferably, as a specific driving implementation method, both the bidirectional lead screw one and the bidirectional lead screw two are integral lead screws, with threaded sections of opposite directions on both sides of the middle section, which respectively cooperate with the corresponding nut structures on the lower slide plate and the upper slide plate. This structural design is the mechanical basis for realizing the absolute synchronous movement of the processing components on both sides.

[0015] Preferably, to facilitate maintenance and reduce operating costs, the lathe tool structure includes a tool holder and a replaceable insert fixed to the end of the tool holder, which can be quickly replaced when the insert wears out, without replacing the entire lathe tool assembly.

[0016] Preferably, as a specific implementation of the rotary machining function, the internal structure of the rotary spindle includes a spindle housing, a spindle rotatably disposed in the spindle housing, and a rotary cutter head controlled by the spindle and capable of moving radially therein. By controlling the radial feed of the rotary cutter head, high-precision turning operations on the end face of the workpiece can be achieved.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of long production process and low automation caused by the separation of turning, pressing and welding processes in the prior art by setting an adjustment component to drive two sets of symmetrical processing components to achieve synchronous pressing in opposite directions. It achieves the technical effect of highly integrating multiple processes, significantly shortening the production cycle and improving the overall production efficiency.

[0018] 2. This utility model solves the problem in the prior art that the final precision of the product is difficult to guarantee due to welding thermal deformation by adding a horizontal rotary spindle to perform final precision machining on the workpiece after welding. It achieves the technical effect of effectively eliminating machining errors and significantly improving the dimensional accuracy and quality stability of the product.

[0019] 3. This utility model solves the problems of low processing efficiency on one side and easy accumulation of errors in step-by-step positioning in the prior art by adopting symmetrically arranged processing components and driving their synchronous movement by adjustment components. It achieves the technical effect of doubling processing efficiency, effectively ensuring the coaxiality and symmetry of the final product, and improving processing accuracy. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a fully automatic integrated welding and pressing machine proposed in this utility model; Figure 2 This is a schematic diagram of the lathe tool of a fully automatic turning, welding and pressing integrated machine proposed in this utility model; Figure 3 This is a schematic diagram of the horizontal rotary spindle of a fully automatic machining, welding and pressing integrated machine proposed in this utility model; Legend: 1. Machine tool base; 2. Welding wire feeder; 3. Machining components; 31. Lathe tool; 32. Turning spindle; 33. Welding torch; 4. Pulse welding machine; 5. Adjustment assembly; 51. Two-way lead screw one; 52. Lower slide plate; 53. Two-way lead screw two; 54. Upper slide plate; 6. Horizontal rotary spindle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Reference Figures 1 to 3 This utility model provides a fully automatic turning, welding and pressing integrated machine, which aims to solve the problem that the turning, pressing, welding and finishing processes in the prior art need to be completed by multiple machines in steps, resulting in a dispersed structure, low degree of automation and large footprint.

[0023] like Figure 1 As shown, the fully automatic machining, welding, and press-fitting integrated machine includes a machine base 1 and an adjustment assembly 5 fixedly connected to the top of the machine base 1. The machine base 1 serves as the mounting base for the entire device, providing stable support for each component. The adjustment assembly 5 is used to support and drive the machining components 3 to achieve precise relative movement. The adjustment assembly 5 includes a lower slide plate 52 and an upper slide plate 54 slidably connected to the top of the lower slide plate 52 along a predetermined guide path. To achieve precise sliding connection, the top of the lower slide plate 52 is provided with two parallel guide rails, and the bottom of the upper slide plate 54 is provided with a slider that slides in cooperation with the guide rails. The cooperation between the guide rails and the sliders together defines the predetermined guide path. Two symmetrically arranged machining components 3 are respectively fixedly connected to the upper slide plate 54. For both ends, so that they can move synchronously with the upper slide plate 54, the core drive mechanism of the adjustment component 5 includes a double-acting lead screw 1 51 and a double-acting lead screw 2 53. The double-acting lead screw 1 51 and the lower slide plate 52 form a lead screw and nut transmission engagement, and the double-acting lead screw 2 53 and the upper slide plate 54 form a lead screw and nut transmission engagement. By driving the double-acting lead screw 1 51 and the double-acting lead screw 2 53 to rotate through an external drive source, the two sets of processing components 3 can be driven to move synchronously towards or away from each other. Specifically, the double-acting lead screw 1 51 and the double-acting lead screw 2 53 are both integral lead screws, with threaded sections with opposite directions on both sides of the middle, which respectively engage with the corresponding nut structures on the lower slide plate 52 and the upper slide plate 54, thereby ensuring the accuracy and stability of synchronous drive.

[0024] Reference Figure 1 and Figure 2 The machining assembly 3 includes a turning spindle 32 for clamping and rotating the workpiece, and a turning tool 31 fixedly mounted on the machining assembly 3 for turning the workpiece. The machining assembly 3 also includes a welding torch 33. During turning, the turning spindle 32 clamps and rotates the workpiece, while the stationary turning tool 31 performs cutting on the rotating workpiece.

[0025] Reference Figure 2 The specific structure of the cutting tool 31 includes a tool holder and a replaceable insert fixed to the end of the tool holder. This structure facilitates quick replacement of the insert after it wears out. The welding torch 33 is fixedly installed on the machining assembly 3 and adjacent to the working area of ​​the turning spindle 32. Its position is preset at the weld seam after the workpiece is pressed. After the pressing process is completed, the welding torch 33 can immediately perform welding operations. To support the welding function, the device also includes a pulse welding machine 4 and an electric welding wire feeder 2. The pulse welding machine 4 is fixedly connected to the outside of the machine tool base 1 and electrically connected to the welding torch 33 to provide it with the electrical energy required for welding. The electric welding wire feeder 2 is fixedly connected to the top of the machine tool base 1 and is connected to the welding torch 33 through a wire feeding pipe to continuously supply welding wire for the welding process.

[0026] Reference Figure 3 The rotary spindle 6 is fixedly connected to the outside of the machine tool base 1, and its machining axis is parallel to the rotation axis of the turning spindle 32, which facilitates the transfer and positioning of the workpiece after welding. The internal structure of the rotary spindle 6 includes a spindle housing, a spindle rotatably set in the spindle housing, and a rotary cutter head controlled by the spindle and capable of moving radially along it. By controlling the radial feed of the rotary cutter head, the rotary machining of the workpiece end face is realized. In order to improve the motion accuracy and stability of the adjustment component 5, the top of the lower slide plate 52 is provided with two parallel guide rails, and the bottom of the upper slide plate 54 is provided with a slider that slides in cooperation with the guide rails.

[0027] Reference Figure 2 The lathe tool 31 adopts a split design, which includes a tool holder and a replaceable insert that is detachably fixed to the end of the tool holder by fasteners.

[0028] The implementation principle of this application embodiment is as follows: When processing is performed, two sets of symmetrical processing components 3 work respectively. The turning spindle 32 clamps and drives the workpiece to rotate at high speed. The fixed turning tool 31 performs turning processing on the workpiece. After the turning is completed, the bidirectional lead screw 51 and bidirectional lead screw 53 in the driving adjustment component 5 rotate. Since the lead screw has a threaded section with opposite rotation direction, it drives the lower slide plate 52 and the upper slide plate 54 to perform precise linear motion in opposite directions, thereby driving the two sets of processing components 3 fixed on the upper slide plate 54 to move closer to the center, realizing automatic centering and pressing of the two workpieces.

[0029] After the workpiece is pressed into place, the electric welding wire feeder 2 and the pulse welding machine 4 work together to automatically weld the pressing part of the workpiece through the welding gun 33 preset on the processing component 3. After the welding is completed, the robot arm transfers the welded whole workpiece to the rotary spindle 6. The rotary spindle 6 performs synchronous rotary precision machining on both ends of the workpiece to eliminate welding heat deformation and ensure the final dimensional accuracy. The whole process is integrated on the machine tool base 1, without the need for multiple transfers and repositioning, which significantly improves production efficiency and product consistency.

Claims

1. A fully automatic machining, welding, and press-fitting integrated machine, comprising a machine tool base (1) and an adjustment assembly (5) fixedly connected to the top of the machine tool base (1), the adjustment assembly (5) comprising a lower sliding plate (52) and an upper sliding plate (54) slidably connected to the top of the lower sliding plate (52) along a predetermined guide path; characterized in that, It also includes two symmetrically arranged processing components (3), which are respectively fixedly connected to the opposite ends of the upper slide plate (54); the adjustment component (5) also includes a bidirectional lead screw one (51) and a bidirectional lead screw two (53), which form a lead screw and nut transmission cooperation with the lower slide plate (52), and the bidirectional lead screw two (53) forms a lead screw and nut transmission cooperation with the upper slide plate (54) to drive the two processing components (3) to move towards or away from each other synchronously.

2. The fully automatic welding and press-fitting integrated machine according to claim 1, characterized in that, The processing assembly (3) includes a turning spindle (32) for clamping and rotating the workpiece, and a turning tool (31) fixedly disposed on the processing assembly (3) for turning the workpiece. The processing assembly (3) also includes a welding torch (33), which is fixedly disposed on the processing assembly (3) and adjacent to the working area of ​​the turning spindle (32).

3. The fully automatic welding and press-fitting integrated machine according to claim 2, characterized in that, It also includes a pulse welding machine (4) and an electric welding wire feeder (2); the pulse welding machine (4) is fixedly connected to the outside of the machine tool base (1) and electrically connected to the welding gun (33); the electric welding wire feeder (2) is fixedly connected to the top of the machine tool base (1) and communicates with the welding gun (33) via a wire feeding pipe.

4. The fully automatic machining, welding, and press-fitting integrated machine according to claim 2, characterized in that, It also includes a rotary spindle (6), which is fixedly connected to the outside of the machine tool base (1), and the machining axis of the rotary spindle (6) is parallel to the rotation axis of the turning spindle (32).

5. The fully automatic welding and press-fitting integrated machine according to claim 1, characterized in that, The lower slide plate (52) has two parallel guide rails at its top, and the upper slide plate (54) has a slider at its bottom that slides with the guide rails. The guide rails and the slider together define the predetermined guide path.

6. The fully automatic welding and press-fitting integrated machine according to claim 1, characterized in that, Both the first bidirectional lead screw (51) and the second bidirectional lead screw (53) are integral lead screws, with threaded sections of opposite directions on both sides of the middle part, which respectively cooperate with the corresponding nut structures on the lower slide plate (52) and the upper slide plate (54).

7. The fully automatic welding and press-fitting integrated machine according to claim 2, characterized in that, The cutting tool (31) includes a shank and a replaceable insert fixed to the end of the shank.

8. The fully automatic machining, welding, and press-fitting integrated machine according to claim 4, characterized in that, The rotary spindle (6) includes a spindle housing, a spindle rotatably disposed within the spindle housing, and a rotary cutter head controlled by the spindle and capable of moving radially therein.

Images