Positioning and pressing device for lower protection assembly of light-weight composite commercial vehicle during accessory bonding and assembling

Abstract

The utility model discloses a positioning and pressing device for a lower protection assembly of a light-weight composite commercial vehicle during accessory bonding and assembling. Comprising a steel workbench surface, an aluminum alloy profile workbench, a linear guide rail, movable left and right bracket positioning clamps, an adjustable limiting baffle, left and right metal bracket clamping cylinders, a composite material cross beam, left and right metal brackets, a main pressurizing cylinder, a pressing block, a cylinder pressing pressure knob adjusting valve and a cross beam-metal bracket pressing time adjusting knob adjusting valve, the device comprises a metal supporting column, a left support clamping air cylinder action control button, a right support clamping air cylinder action control button, a main pressurization air cylinder pressing action control button, a main pressurization air cylinder exhaust return action control button, a power indicator, a positioning plug pin, a positioning electromagnetic suction device, a pressurization air cylinder fixing metal support, an adjusting rod and a metal tray. The positioning device has the advantages of high positioning precision, uniform pressing force, high universality and convenience in adjustment, and can improve the production efficiency and the product quality.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle parts manufacturing technology, specifically a positioning and clamping device for a lightweight composite material commercial vehicle underbody protection assembly during the bonding and assembly of its accessories. Background Technology

[0002] Currently, underbody protection assemblies for commercial vehicles are typically made of metal, resulting in significant weight. To reduce vehicle weight and improve fuel economy, an increasing number of commercial vehicles are adopting lightweight composite materials for their underbody protection assemblies. Composite material underbody protection assemblies are usually constructed by bonding composite material crossbeams and metal supports together. Due to the significant differences in physical properties between composite materials and metals, precise positioning and clamping during the bonding process are crucial.

[0003] Existing adhesive assembly methods have the following problems:

[0004] 1. Low positioning accuracy can easily lead to deviations in the position of the metal bracket, affecting the assembly quality of the lower protection assembly.

[0005] 2. Uneven clamping force can easily lead to insufficient bonding strength, affecting the service life of the lower protective assembly.

[0006] 3. Poor versatility, making it difficult to adapt to the assembly requirements of underbody protection assemblies for different models of commercial vehicles.

[0007] 4. Inconvenient to adjust, inefficient, and affects product production efficiency.

[0008] Therefore, this application proposes a positioning and clamping device for the lightweight composite material commercial vehicle underbody protection assembly during the bonding and assembly of its accessories to solve the problems existing in the background art. Utility Model Content

[0009] Purpose of the utility model: To overcome the shortcomings of the prior art and provide a positioning and clamping device for the lightweight composite material commercial vehicle underbody protection assembly during the bonding and assembly of its accessories, which features high positioning accuracy, uniform clamping force, strong versatility, and convenient adjustment, so as to improve production efficiency and product quality.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A positioning and clamping device for a lightweight composite material commercial vehicle underbody protection assembly during the bonding and assembly of its accessories, comprising:

[0012] Steel work surface;

[0013] An aluminum alloy profile workbench, wherein the steel workbench surface is fixed to the aluminum alloy profile workbench with bolts;

[0014] One linear guide rail at the front and one at the back are fixed to the aluminum alloy profile worktable.

[0015] Movable left and right bracket positioning clamps, one on each side, are mounted on the linear guide rail and can be moved and adjusted along the linear guide rail;

[0016] Adjustable limit baffles are used to limit the position of composite material crossbeams and can be locked after the position is adjusted.

[0017] Left and right metal bracket clamping cylinders, one on each side, are used to fit and fix the left and right metal brackets to the movable left and right bracket positioning clamps;

[0018] The composite material crossbeam is a key component of the lower protective assembly to be bonded and pressed together.

[0019] The left and right metal brackets, one on each side, are the main components of the lower protective assembly to be bonded and pressed together with the composite material crossbeam.

[0020] The main booster cylinder is used to apply a clamping force to bond and press the composite material crossbeam to the left and right metal brackets.

[0021] A clamping block is installed on the main booster cylinder to increase the contact area between the main booster cylinder and the composite material crossbeam;

[0022] Metal support columns are used to support the left and right metal brackets. They are fixed to the aluminum alloy profile workbench by bolts, and the bolts can be loosened to adjust the position of the metal support columns.

[0023] A metal tray is used to support the composite material beam, and a spring is provided underneath it. The tray is higher than the metal support column.

[0024] As a further improvement to the above technical solution:

[0025] It also includes: a cylinder clamping pressure knob adjustment valve, used to adjust the pressure of the main booster cylinder.

[0026] The beam-metal bracket clamping time adjustment knob is used to preset the time for bonding and clamping the composite material beam with the left and right metal brackets.

[0027] A positioning pin is provided on the movable left and right bracket positioning fixture for positioning the left and right metal brackets.

[0028] The positioning electromagnetic attractor is fixed on the metal support column and is used to attract and fix the left and right metal brackets.

[0029] A scale ruler for adjusting the position of the left and right positioning fixtures is used to assist in adjusting the position of the movable left and right support positioning fixtures.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] High positioning accuracy: Multiple positioning methods, including linear guide rails, movable left and right bracket positioning clamps, positioning pins, and positioning electromagnetic chucks, ensure the positioning accuracy of the left and right metal brackets and improve the assembly quality of the lower protective assembly.

[0032] Uniform clamping force: The main booster cylinder and clamping block apply uniform clamping force to the composite material crossbeam, ensuring bonding strength and improving the service life of the lower protection assembly.

[0033] High versatility: The size of the device can be easily adjusted by the movable left and right bracket positioning clamps and adjustable metal support columns to adapt to the assembly requirements of different models of commercial vehicle under-protection assemblies.

[0034] Easy to adjust: The various parameters of the device can be easily adjusted using the scale, rotary adjustment valve and action control button, which improves production efficiency.

[0035] Safe and reliable: The design of the metal tray prevents the composite beam from contacting the left and right metal supports before the left and right metal supports are fully positioned, thus avoiding waste caused by mis-adhesion. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of this utility model;

[0037] Figure 2 A schematic diagram of the structure of this utility model;

[0038] Figure 3 Front view of this utility model.

[0039] In the diagram: 1-Steel worktable, 2-Aluminum alloy profile worktable, 3-Linear guide rail, 4-Modible left and right support positioning clamp, 5-Adjustable limit baffle, 6-Left and right metal support clamping cylinder, 7-Composite material crossbeam, 8-Left and right metal supports, 9-Main booster cylinder, 10-Clamping block, 11-Cylinder clamping pressure knob adjustment valve, 12-Crossbeam-metal support clamping time adjustment knob adjustment valve, 13-Metal support column, 14-Left support 15-Right bracket clamping cylinder action control button; 16-Main booster cylinder clamping action control button; 17-Main booster cylinder exhaust return action control button; 19-Left and right positioning fixtures locking positioning bolts after adjustment of position; 20-Positioning pin; 21-Positioning electromagnetic chuck; 22-Scale for adjusting the position of the left and right positioning fixtures; 23-Metal support for fixing the booster cylinder; 24-Adjusting rod; 25-Metal tray. Detailed Implementation

[0040] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0041] Applicant's design Figure 1-3 As shown, the positioning and clamping device for the lightweight composite material commercial vehicle underbody protection assembly during the bonding and assembly of its accessories includes: a steel worktable 1; an aluminum alloy profile worktable 2, the steel worktable 1 being bolted to the aluminum alloy profile worktable 2; linear guide rails 3, one at the front and one at the back, fixed to the aluminum alloy profile worktable 2; movable left and right bracket positioning clamps 4, one on each side, set on the linear guide rails 3, which can be moved and adjusted along the linear guide rails 3; adjustable limit baffles 5, used to limit the position of the composite material crossbeam 7, which can be locked after the position is adjusted; left and right metal bracket clamping cylinders 6, one on each side, used to fit and fix the left and right metal brackets 8 to the movable left and right bracket positioning clamps 4; and composite material crossbeams 7. Beam 7 is one of the main components of the lower protective assembly to be bonded and pressed; left and right metal brackets 8, one on each side, are also main components of the lower protective assembly to be bonded and pressed with the composite material beam 7; main booster cylinder 9 is used to apply pressure to bond and press the composite material beam 7 with the left and right metal brackets 8; pressing block 10 is installed on the main booster cylinder 9 to increase the contact area between the main booster cylinder 9 and the composite material beam 7; metal support column 13 is used to support the left and right metal brackets 8, and is fixed to the aluminum alloy profile workbench 2 by bolts, and the bolts can be loosened to adjust the position of the metal support column 13; metal tray 25 is used to support the composite material beam 7, and has a spring underneath it, and is higher than the metal support column 13.

[0042] The positioning and clamping device for the lightweight composite material commercial vehicle underbody protection assembly in this embodiment during the bonding and assembly of its accessories further includes: a cylinder clamping pressure knob adjustment valve 11, used to adjust the pressure of the main booster cylinder 9; a beam-metal bracket clamping time adjustment knob adjustment valve 12, used to preset the bonding and clamping time between the composite material beam 7 and the left and right metal brackets 8; a positioning pin 20, set on the movable left and right bracket positioning clamp 4, used to position the left and right metal brackets 8; a positioning electromagnetic attractor 21, fixed on the metal support column 13, used to attract and fix the left and right metal brackets 8; a scale 22 for adjusting the position of the left and right positioning clamp, used to assist in adjusting the position of the movable left and right bracket positioning clamp 4; and metal supports 23 for fixing the two booster cylinders, used to fix and support the booster cylinders.

[0043] The specific work process is as follows:

[0044] Position Adjustment: According to the drawing requirements, adjust the position of the movable left and right bracket positioning clamps 4 on the linear guide rail 3, and refer to the scale 22 for adjusting the position of the left and right positioning clamps. Adjust the positioning clamps of the left and right brackets to the predetermined position, and then tighten the positioning bolts 19 after adjusting the position of the left and right positioning clamps to fix them. Adjust the position of the adjustable limit baffle 5 and the adjusting rod 24 to limit the position of the composite material crossbeam 7.

[0045] Bracket Fixing: Place the left and right metal brackets 8 on the metal support column 13. Adjust the position of the metal support column 13 so that the upper surface of the metal support column 13 contacts the adhesive surface of the left and right metal brackets 8, and use the positioning electromagnetic clamp 21 to clamp and fix the left and right metal brackets 8. At the same time, align the mounting holes on the left and right metal brackets 8 with the holes on the movable left and right bracket positioning clamp 4, and insert the positioning pins 20 for fixation.

[0046] Bracket clamping: Press the left bracket clamping cylinder action control button 14 and the right bracket clamping cylinder action control button 15 respectively to activate the left and right metal bracket clamping cylinders 6, so that the left and right metal brackets 8 are attached and fixed to the movable left and right bracket positioning clamps 4.

[0047] Beam Placement: After applying liquid structural adhesive to the bonding surfaces of the left and right metal supports 8, place the composite material beam 7 on the metal tray 25. Since the height of the metal tray 25 is higher than that of the metal support column 13, the composite material beam 7 will not contact the left and right metal supports 8 before the left and right metal supports 8 are fully positioned.

[0048] Pressing and bonding: Press the main pressurizing cylinder pressing action control button 16 to activate the main pressurizing cylinder 9. The pressing block 10 applies a pressing force to the composite material crossbeam 7, making the composite material crossbeam 7 tightly bonded to the left and right metal supports 8. The pressing force can be adjusted by the cylinder pressing pressure adjustment knob valve 11.

[0049] Curing: Keep the pressure firmly on and wait for the liquid structural adhesive to initially cure for 3-5 minutes.

[0050] Depressurization: After the set curing time is reached, press the main booster cylinder exhaust return action control button 17 to release the pressure of the main booster cylinder 9.

[0051] Removal: Remove the positioning pin 20, take the glued lower protective assembly off the device, and store it until the adhesive has fully cured.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A positioning and clamping device for a lightweight composite commercial vehicle underbody assembly during adhesive bonding of its accessories, characterized in that, include: Steel work surface (1); An aluminum alloy profile workbench (2) is provided, and the steel workbench surface (1) is fixed to the aluminum alloy profile workbench (2) with bolts. Linear guide rails (3), one at the front and one at the back, are fixed on the aluminum alloy profile worktable (2); Movable left and right bracket positioning clamps (4), one on each side, are set on the linear guide rail (3) and can be moved and adjusted along the linear guide rail (3); An adjustable limiting baffle (5) is used to limit the position of the composite material beam (7), and can be locked after the position is adjusted; Left and right metal bracket clamping cylinders (6), one on each side, are used to fit and fix the left and right metal brackets (8) to the movable left and right bracket positioning clamps (4); The composite material crossbeam (7) is the main component of the lower protective assembly to be bonded and pressed. The left and right metal brackets (8), one on each side, are the main components of the lower protective assembly to be bonded and pressed together with the composite material beam (7); The main booster cylinder (9) is used to apply a clamping force to the bonding and pressing of the composite material beam (7) and the left and right metal brackets (8); A clamping block (10) is installed on the main booster cylinder (9) to increase the contact area between the main booster cylinder (9) and the composite material beam (7); Metal support column (13) is used to support the left and right metal brackets (8), and is fixed to the aluminum alloy profile workbench (2) by bolts. The bolts can be loosened to adjust the position of the metal support column (13). A metal tray (25) is used to support the composite beam (7), with a spring underneath and a height higher than the metal support column (13).

2. The lightweight composite material commercial vehicle lower protection assembly of claim 1, wherein the positioning and pressing device is used when the attachment is bonded and assembled. Also includes: The cylinder clamping pressure knob adjustment valve (11) is used to adjust the pressure of the main booster cylinder (9).

3. The lightweight composite commercial vehicle lower protection assembly of any one of claims 1-2, wherein the positioning and clamping device is configured to position and clamp the assembly during adhesive bonding of the assembly to the vehicle. 3 It also includes: a beam-metal bracket pressing time adjustment knob adjustment valve (12), used to preset the bonding and pressing time between the composite material beam (7) and the left and right metal brackets (8).

4. The positioning and clamping device for the lightweight composite material commercial vehicle underbody protection assembly according to claim 1 during the bonding and assembly of its accessories, characterized in that, Also includes: Positioning pins (20) are provided on the movable left and right bracket positioning fixtures (4) for positioning the left and right metal brackets (8).

5. The lightweight composite underguard assembly of any one of claims 1 or 4, wherein the positioning and clamping device is configured to position and clamp the underguard assembly to the vehicle during adhesive bonding of the underguard assembly to the vehicle. Also includes: The positioning electromagnetic attractor (21) is fixed on the metal support column (13) and is used to attract and fix the left and right metal brackets (8).

6. The lightweight composite material commercial vehicle lower defense assembly of claim 1, wherein the positioning and pressing device is used when the attachment is bonded and assembled. Also includes: A scale (22) for adjusting the position of the left and right positioning clamps is used to assist in adjusting the position of the movable left and right support positioning clamps (4).

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