Automatic welding device for external parts of engine combustion chamber
By designing an automated welding device that utilizes laser alignment and a welding walking mechanism, the problems of low welding efficiency and poor quality of solid rocket engine combustion chamber components have been solved, achieving an efficient and stable automated welding process.
Patent Information
- Application Number
- CN202422493985.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In the existing technology, the welding efficiency of solid rocket engine combustion chamber components is low, the cost is high, and the welding quality is difficult to guarantee, especially due to the frequent occurrence of positional deviations and welding defects caused by manual operation.
An automatic welding device was designed, comprising a base, guide rail, laser alignment device, welding gun holder, and welding part clamping support. The laser alignment device is used for precise positioning, and the welding walking mechanism and welding gun oscillator achieve precise welding, reducing human operation errors and improving welding quality and efficiency.
The automated welding of solid rocket engine combustion chamber components has been achieved, reducing labor intensity, improving production efficiency, ensuring welding quality, reducing labor costs, avoiding welding defects, and improving the degree of automation.
Smart Images
Figure CN223441397U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to welding technical field, concretely relates to a kind of engine combustion chamber external component automatic welding device. BACKGROUND
[0002] Solid rocket engine combustion chamber component mainly includes wing seat, cable cover pad etc., for metal material combustion chamber, the mode of connection of component is still using welding method.At present, manual tungsten argon arc welding is the main method of solid rocket engine component field welding, it is a kind of welding method suitable for various welding positions, very flexible and feasible, but the welding method artificial efficiency is low, artificial cost is expensive, the welding technology requirement of welder is higher, and the probability of producing welding defect is big.This greatly limits the production efficiency of engine combustion chamber, improves production cost.
[0003] To realize the automatic welding of solid rocket engine combustion chamber component, there are the following difficulties for current technology:
[0004] Because wing seat, cable cover pad still adopts naked eye to determine component welding position in manual tungsten argon arc welding process, the welding straightness of wing seat, cable cover pad, directional knob is greatly influenced by uncertain factors, secondly, post-welding deformation further amplifies its position deviation.Engine wing and cable cover assembly exist size deviation, even cannot be assembled and other problems.
[0005] Manual tungsten argon arc welding field welding still uses manual wire feeding, and the precision of wire feeding is poor, and the skill level of welder is high, and the unstable factors of manual wire feeding easily cause welding defects, and the weld quality is poor, and the production efficiency is low.
[0006] At present, engine combustion chamber size is larger, and welding parts lack matching welding tool clamping and fixing, and welding relies on field cooperation personnel manual support, and the technical requirement of welder is higher, and the influence of uncertain factors is increased, and welding quality is difficult to guarantee, and mass production processing is difficult to realize. UTILITY MODEL CONTENT
[0007] In view of the deficiencies of prior art, in order to improve welding efficiency, reduce cost, obtain higher welding quality, the utility model provides a kind of engine combustion chamber external component automatic welding device.
[0008] The utility model aims at realizing through following technical scheme:
[0009] The utility model discloses an automatic welding device for engine combustion chamber external parts, including base, first horizontal guide rail of setting on the base upper surface, the second horizontal guide rail of setting the base front side, the third horizontal guide rail of setting the upper portion of base, the vertical guide rail of setting the right -hand member of base, two groups of combustion chamber fixed frame of connecting in the first horizontal guide rail upper end, the welding torch support of connecting on the second horizontal guide rail, the welding piece clamping support of connecting on the third horizontal guide rail, the laser centering device of connecting on the vertical guide rail,
[0010] The welding torch support is connected with a welding torch vertical moving mechanism through a vertical rod, and the welding torch vertical moving mechanism is connected with the welding torch through a welding swing device; the welding torch vertical moving mechanism is used for adjusting the vertical position of the welding torch on the vertical rod, and the welding swing device is used for adjusting the swing parameters of the welding torch.
[0011] The two combustion chamber fixed frames are connected with the two ends of the combustion chamber through combustion chamber rotating mechanisms respectively, and the combustion chamber rotating mechanisms are used for controlling the horizontal rotation of the combustion chamber around the axis.
[0012] The welding piece clamping support is connected with a welding piece vertical moving mechanism through a vertical rod, and the welding piece vertical moving mechanism is connected with the welding piece through a welding piece clamp; the welding piece vertical moving mechanism is used for adjusting the vertical position of the welding piece on the vertical rod, and the welding piece clamp is used for clamping the welding piece.
[0013] The position of the laser centering device on the vertical guide rail is adjusted, so that the emitted light of the laser centering device is aligned with the characteristic point of the end face of the combustion chamber.
[0014] Working process
[0015] Firstly, mark points matched with the circumferential position of the welding piece are drawn on the rear end face of the combustion chamber, then the positions of the two combustion chamber fixed frames on the first horizontal guide rail are adjusted, so that the interval of the two combustion chamber fixed frames is matched with the support length of the combustion chamber, and the combustion chamber is installed on the combustion chamber rotating mechanisms in the two combustion chamber fixed frames; then the position of the laser centering device on the vertical guide rail is adjusted, so that the emitted light of the laser centering device is vertically irradiated on the upper side of the rear end face of the combustion chamber; the combustion chamber is controlled to rotate horizontally around the axis through the combustion chamber rotating mechanisms, so that the emitted light of the laser centering device is aligned with the mark points on the rear end face of the combustion chamber; after the welding piece is clamped through the welding piece clamp, the horizontal position of the welding piece clamping support on the third horizontal guide rail and the vertical position of the welding piece are adjusted, so that the welding piece is located at the welding position of the combustion chamber; the horizontal position of the welding torch support on the second horizontal guide rail and the vertical position of the welding torch are adjusted, and finally the swing parameters of the welding torch are adjusted through the welding swing device, so that the welding of the welding piece is completed.
[0016] Beneficial effects
[0017] 1. The utility model utilizes welding fixtures and laser centering devices to solve the operational errors of manually fixing weldments during welding and eliminate the problem of welding size deviation.
[0018] 2. The utility model utilizes a welding travel mechanism in conjunction with a welding gun oscillator to realize a linear oscillating welding process for fillet welds. When welding on a thin-walled tube, a fish-scale fillet weld with shallow penetration and wide width is formed, thereby ensuring welding quality, beautiful welds, and a stable welding process.
[0019] 3. The utility model solves the welding problem of parts on the combustion chamber of solid rocket engines by using automatic welding equipment, which can reduce labor intensity and improve the working environment; improve labor productivity, avoid welding defects caused by human factors, and has a high degree of automation, ensuring the stability of the welding process and guaranteeing welding quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural diagram of the automatic welding device of the utility model. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Example
[0023] like Figure 1 As shown, the utility model is an automatic welding device for external parts of an engine combustion chamber, comprising a base 1, a first horizontal guide rail 8 provided on the upper surface of the base 1, a second horizontal guide rail 3 provided on the front side of the base 1, a third horizontal guide rail 2 provided above the base 1, a vertical guide rail 10 provided at the right end of the base 1, two sets of combustion chamber fixing frames 7 connected to the upper ends of the first horizontal guide rail 8, a welding gun holder 4 connected to the second horizontal guide rail 3, a welding part clamping support 6 connected to the third horizontal guide rail 2, and a laser centering device 9 connected to the vertical guide rail 10;
[0024] The welding gun holder 4 is connected to the welding gun vertical movement mechanism 5 via a vertical rod, and the front end of the welding gun vertical movement mechanism 5 is connected to the welding gun via a welding oscillator; the welding gun vertical movement mechanism is used to adjust the vertical position of the welding gun on the vertical rod, and the welding oscillator is used to adjust the oscillation parameters of the welding gun;
[0025] The two combustion chamber fixing frames 7 are connected to the two ends of the combustion chamber through the combustion chamber rotating mechanism, and the combustion chamber rotating mechanism is used to control the horizontal rotation of the combustion chamber around the axis;
[0026] The welding piece clamping support 6 is connected with a welding piece vertical moving mechanism through a vertical rod, and the lower end of the welding piece vertical moving mechanism is connected with a welding piece clamp which clamps the welding piece; the welding piece vertical moving mechanism is used to adjust the vertical position of the welding piece on the vertical rod, and the welding piece clamp clamps the welding piece;
[0027] The position of the laser centering device 9 on the vertical guide rail 10 is adjusted so that the emitted light of the laser centering device 9 is aligned with the characteristic point of the end face of the combustion chamber.
[0028] First, mark points matching the circumferential position of the welding piece are drawn on the rear end face of the combustion chamber, then the positions of the two combustion chamber fixing frames 7 on the first horizontal guide rail 8 are adjusted so that the distance between the two combustion chamber fixing frames 7 matches the support length of the combustion chamber, and the combustion chamber is installed on the combustion chamber rotating mechanism inside the two combustion chamber fixing frames 7; then the position of the laser centering device 9 on the vertical guide rail 10 is adjusted so that the emitted light of the laser centering device 9 is vertically irradiated on the upper side of the rear end face of the combustion chamber; the combustion chamber is controlled to rotate horizontally around the axis through the combustion chamber rotating mechanism, so that the emitted light of the laser centering device 9 is aligned with the mark points on the rear end face of the combustion chamber; after the welding piece is clamped through the welding piece clamp, the horizontal position of the welding piece clamping support 6 on the third horizontal guide rail 2 and the vertical position of the welding piece are adjusted, so that the welding piece is located at the welding position of the combustion chamber; the horizontal position of the welding gun support 4 on the second horizontal guide rail 3 and the vertical position of the welding gun are adjusted, and finally the swing parameters of the welding gun are adjusted through the welding swing device, so that the welding of the welding piece is completed.
Claims
1. An automatic welding device for external parts of an engine combustion chamber, characterized by: The device comprises a base, a first horizontal guide rail arranged on the upper surface of the base, a second horizontal guide rail arranged on the front side of the base, a third horizontal guide rail arranged above the base, a vertical guide rail arranged on the right end of the base, two sets of combustion chamber fixing brackets connected to the upper ends of the first horizontal guide rails, a welding gun holder connected to the second horizontal guide rail, a welding part clamping support connected to the third horizontal guide rail, and a laser centering device connected to the vertical guide rail. The welding gun seat is connected to the welding gun vertical movement mechanism via a vertical rod, and the front end of the welding gun vertical movement mechanism is connected to the welding gun via a welding oscillator; the welding gun vertical movement mechanism is used to adjust the vertical position of the welding gun on the vertical rod, and the welding oscillator is used to adjust the oscillation parameters of the welding gun; The two combustion chamber fixing frames are respectively connected to the two ends of the combustion chamber through a combustion chamber rotating mechanism, and the combustion chamber rotating mechanism is used to control the horizontal rotation of the combustion chamber around the axis; The welding part clamping support is connected to the welding part vertical moving mechanism via a vertical rod, and the lower end of the welding part vertical moving mechanism is connected to the welding part via a welding part clamp; the welding part vertical moving mechanism is used to adjust the vertical position of the welding part on the vertical rod, and the welding part clamp clamps the welding part; The position of the laser centering device on the vertical guide rail is adjusted so that the emitted light of the laser centering device is aligned with the characteristic point of the end face of the combustion chamber.