Welding tool for automobile engine hood assembly
By designing a multi-directional pneumatic fixture set and a car hood assembly welding tool with support for the compacting part structure, the problem of traditional welding tooling requires multiple clamping, and the welding is completed in one clamping, which improves accuracy and reduces costs.
Patent Information
- Application Number
- CN202421538393.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Traditional automotive hood assembly welding tooling requires multiple fixtures, resulting in high costs and increased time costs. In addition, multiple clamps are required during welding, which reduces the assembly dimensional accuracy.
A kind of welding tool for the automotive hood assembly is designed, using a mobile base and a multi-directional pneumatic fixture group, including a side, bottom end and top pneumatic fixture group, and the middle supports the compacting part structure, so that the entire welding work can be completed in one clamping.
It avoids the over-positioning of welding fixtures, improves welding accuracy, reduces the development cost and cycle of fixtures and measurement support, and saves time and costs.
Smart Images

Figure CN222767618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a welding tool for automobile parts, in particular to a welding tool for an automobile engine cover assembly. Background Art
[0002] The car hood is generally composed of an outer panel, an inner panel and several reinforcing panels that are combined into one by biting and welding. The outer panel of the hood reflects the styling design, while the inner panel and reinforcing panels provide support and reinforcement for the outer panel.
[0003] The cost of the traditional structural steel structure of the automobile hood assembly is low, but the weight is large, which is not conducive to the lightweight tailgate. In addition, the number of parts required is large, the manufacturing process is complicated, and the welding process leads to tolerance accumulation, which reduces the assembly size accuracy of the tailgate. An existing automobile hood assembly welding tool requires multiple clamps to complete the entire welding process. The cost is high, and the time cost increases due to the need for multiple clamping during the welding process, which is time-consuming and labor-intensive. Utility Model Content
[0004] The utility model aims to provide a welding tool for an automobile engine hood assembly, which can complete the entire welding work by clamping the tool once.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a kind of automobile hood assembly welding tool, including a mobile base and an automobile hood assembly fixing structure arranged on the upper part of the mobile base, the automobile hood assembly fixing structure includes an edge pneumatic clamp group, a bottom end pneumatic clamp group, a top pneumatic clamp group and a middle supporting clamp structure arranged on the upper part of the mobile base, the edge pneumatic clamp group includes a left edge pneumatic clamp group and a right edge pneumatic clamp group, the bottom end pneumatic clamp group includes a left bottom pneumatic clamp structure, a right bottom pneumatic clamp structure and a middle bottom pneumatic clamp structure, and an auxiliary component is also arranged on the upper part of the mobile base.
[0006] The left side pneumatic clamping tool set includes a left upper side clamping body, a left middle side clamping body and a left lower side clamping body;
[0007] The right side edge pneumatic clamping tool set comprises a right upper edge clamping body, a right middle edge clamping body and a right lower edge clamping body.
[0008] The left upper edge clamp body has the same structure as the right upper edge clamp body and is mirror-imaged, and the left lower edge clamp body has the same structure as the right lower edge clamp body and is mirror-imaged.
[0009] A group of bottom supporting platforms are arranged at the lower end of the upper part of the mobile base.
[0010] The auxiliary component comprises an air source interface, a movable push rod, an outer protective cover and a pneumatic control console arranged on the movable base.
[0011] The central supporting and pressing member structure comprises a central supporting seat body arranged at the central position of the movable base and a central supporting bracket body arranged on the upper part of the central supporting seat body.
[0012] The beneficial effects of the utility model are as follows: the automobile hood assembly welding tool avoids the over-positioning phenomenon when using the welding fixture as a measuring support, objectively reflects the real accuracy in the free state; reduces the total development cost and total development cycle of the fixture and the measuring support; the automobile hood assembly welding tool is provided with a multi-directional workpiece positioning on the mobile base for clamping the hood assembly, which only needs to be clamped once, without the need to replace the fixture, saving time, labor and cost.
[0013] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model.
[0015] Figure 2 for Figure 1 Top view of the .
[0016] Figure 3 for Figure 1 Side view of.
[0017] Figure 4 for Figure 1 Stereoscopic diagram.
[0018] Figure 5 for Figure 1 Usage status diagram.
[0019] In the figure: 1. Mobile base, 2. Air source interface, 3. Mobile push rod, 4. Outer protective cover, 5. Pneumatic control console, 6. Left upper edge clamp body, 7. Left middle edge clamp body, 8. Left lower edge clamp body, 9. Right upper edge clamp body, 10. Right middle edge clamp body, 11. Right lower edge clamp body, 12. Bottom supporting platform, 13. Center supporting seat body, 14. Center supporting bracket body, 15. Left bottom pneumatic clamp structure, 16. Right bottom pneumatic clamp structure, 17. Top pneumatic clamp group, 18. Middle bottom pneumatic clamp structure, 19. Automobile hood assembly. DETAILED DESCRIPTION
[0020] The directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like in the application text are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] Embodiment 1, as Figure 1-5 As shown, a welding tool for an automobile hood assembly includes a mobile base 1 and an automobile hood assembly fixing structure disposed on the upper portion of the mobile base, and the automobile hood assembly fixing structure performs robot welding for fixing the automobile hood assembly 19;
[0023] The automobile hood assembly fixing structure includes an edge pneumatic clamp group, a bottom pneumatic clamp group, a top pneumatic clamp group 17 and a middle supporting and pressing member structure arranged on the upper part of the mobile base, the edge pneumatic clamp group includes a left edge pneumatic pressing member group and a right edge pneumatic pressing member group, the bottom pneumatic clamp group includes a left bottom pneumatic pressing member structure 15, a right bottom pneumatic pressing member structure 16 and a middle bottom pneumatic pressing member structure 18, and an auxiliary component is also arranged on the upper part of the mobile base. The auxiliary component includes an air source interface 2, a mobile push rod 3, an outer protective cover 4 and a pneumatic control console 5 arranged on the mobile base.
[0024] The left side pneumatic clamping tool set includes a left upper side clamp body 6, a left middle side clamp body 7 and a left lower side clamp body 8;
[0025] The right side edge pneumatic clamping tool set comprises a right upper edge clamping body 9, a right middle edge clamping body 10 and a right lower edge clamping body 11.
[0026] The left upper edge clamp body has the same structure as the right upper edge clamp body and is mirror-imaged, and the left lower edge clamp body has the same structure as the right lower edge clamp body and is mirror-imaged.
[0027] A group of bottom supporting platforms 12 are arranged at the lower end of the upper part of the mobile base.
[0028] The central supporting and pressing member structure comprises a central supporting seat body 13 arranged at the central position of the movable base and a central supporting bracket body 14 arranged at the upper part of the central supporting seat body.
[0029] The automobile hood assembly welding fixture avoids the over-positioning phenomenon when using the welding fixture as a measuring support, objectively reflects the real accuracy in a free state, reduces the total development cost and total development cycle of the fixture and the measuring support; the automobile hood assembly welding fixture is provided with multi-directional workpiece positioning on the mobile base for clamping the hood assembly, which only needs to be clamped once without changing the fixture, saving time, labor and cost.
[0030] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.
[0031] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.
Claims
1. A welding tool for an automobile hood assembly, comprising a movable base and an automobile hood assembly fixing structure arranged on the upper part of the movable base, characterized in that: The automobile hood assembly fixing structure includes an edge pneumatic clamp group, a bottom end pneumatic clamp group, a top pneumatic clamp group and a middle supporting clamp structure arranged on the upper part of the mobile base. The edge pneumatic clamp group includes a left edge pneumatic clamp group and a right edge pneumatic clamp group. The bottom end pneumatic clamp group includes a left bottom pneumatic clamp structure, a right bottom pneumatic clamp structure and a middle bottom pneumatic clamp structure. Auxiliary components are also arranged on the upper part of the mobile base.
2. The automobile hood assembly welding tool as claimed in claim 1, characterized in that: The left side pneumatic clamping tool set includes a left upper side clamping body, a left middle side clamping body and a left lower side clamping body; The right side edge pneumatic clamping tool set comprises a right upper edge clamping body, a right middle edge clamping body and a right lower edge clamping body.
3. The automobile hood assembly welding tool as claimed in claim 2, characterized in that: The left upper edge clamp body has the same structure as the right upper edge clamp body and is mirror-imaged, and the left lower edge clamp body has the same structure as the right lower edge clamp body and is mirror-imaged.
4. The automobile hood assembly welding tool as claimed in claim 1, characterized in that: A group of bottom supporting platforms are arranged at the lower end of the upper part of the mobile base.
5. The automobile hood assembly welding tool as claimed in claim 1, characterized in that: The auxiliary components include an air source interface, a movable push rod, an outer protective cover and a pneumatic control console arranged on the movable base.
6. The automobile hood assembly welding tool as claimed in claim 1, characterized in that: The central supporting and pressing member structure comprises a central supporting seat body arranged at the central position of the movable base and a central supporting bracket body arranged on the upper part of the central supporting seat body.