Flexible rapid positioning mechanism

Abstract

The utility model discloses a flexible quick positioning mechanism. The quick positioning mechanism comprises positioning fixing pin groups which are symmetrically arranged at two side suspension positions, the part tool coarse positioning devices are symmetrically arranged on the two side suspensions, the part tool coarse positioning devices distributed on the single side suspensions are provided with oppositely-distributed part tool coarse positioning blocks, and the part tool coarse positioning blocks are provided with upper extending parts extending towards the upper portions of the upper surfaces of the side suspensions and lower extending parts extending towards the lower portions of the lower surfaces of the side suspensions. The part tool rough positioning block is provided with a positioning flat plate and guide positioning slopes arranged at the upper end and the lower end of the positioning flat plate, trapezoidal side plates are distributed on the two sides of the positioning flat plate, end sealing plates connected with the trapezoidal side plates are arranged at the ends of the guide positioning slopes, and an assembly hole is formed in the middle of the positioning flat plate. And the pressing mechanisms are symmetrically arranged at the two side suspensions. According to the mechanism, part tools can be rapidly replaced, and the overall stability is high while the replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling equipment technology, and in particular to a flexible rapid positioning mechanism. Background Technology

[0002] The machining of the center tunnel assembly of the A5L car requires corresponding center tunnel assembly tooling. However, the traditional machining tooling for the A5L car center tunnel assembly has difficulties in positioning the parts, which is not conducive to improving efficiency. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems and provide a flexible and rapid positioning mechanism that can quickly complete the positioning and installation of parts and tooling.

[0004] To solve the above-mentioned technical problems, this utility model provides a flexible rapid positioning mechanism. This rapid positioning mechanism is installed in a machining fixture for an automotive center channel assembly. The machining fixture for the automotive center channel assembly has at least a rotating seat and a positioning fixing plate mounted on the rotating seat via a side suspension. The rapid positioning mechanism comprises:

[0005] The positioning and fixing pin groups are symmetrically arranged on the two side suspensions. The positioning pin groups distributed on a single side suspension have positioning pins respectively arranged on the upper and lower surfaces of the side suspension. The part tooling of the automotive center channel assembly machining tooling is provided with tooling positioning holes that cooperate with the positioning and fixing pin groups.

[0006] A part tooling rough positioning device symmetrically arranged at two side suspensions. The part tooling rough positioning device distributed at a single side suspension has relatively distributed part tooling rough positioning blocks. The part tooling rough positioning block has an upper extension extending upward toward the upper surface of the side suspension and a lower extension extending downward toward the lower surface of the side suspension. The part tooling rough positioning block has a positioning plate, guide positioning inclined surfaces set at the upper and lower ends of the positioning plate, trapezoidal side plates distributed on both sides of the positioning plate, and an end sealing plate connected to the trapezoidal side plate at the end of the guide positioning inclined surface. An assembly hole is provided in the middle of the positioning plate.

[0007] A clamping mechanism symmetrically positioned at the two side suspension points.

[0008] Furthermore, the spacing between the coarse positioning blocks of the part tooling located at a single side suspension point in the part tooling coarse positioning device is 3-5cm greater than the width of the part tooling base plate.

[0009] Furthermore, the rough positioning device for the parts and tooling is integrally stamped.

[0010] Furthermore, the surface of the coarse positioning block of the part tooling coarse positioning device is provided with carbon fiber cloth.

[0011] Furthermore, the clamping mechanism includes a clamping cylinder and a clamping block connected to the clamping cylinder.

[0012] The present invention has the following advantages: the present invention can quickly replace and install parts and tooling, improving replacement efficiency while maintaining high overall stability. Attached Figure Description

[0013] Figure 1 A 3D diagram of a flexible, rapid positioning mechanism.

[0014] Figure 2 A three-dimensional view of a flexible, rapid positioning mechanism distributed on one side of the machining tooling for the automotive center channel assembly.

[0015] Figure 3 for Figure 2 A schematic diagram of the bottom structure.

[0016] Figure 4 A 3D view of the rough positioning block for the part tooling.

[0017] Figure 5 for Figure 4 A schematic diagram of the structure on the other side.

[0018] Figure 6 A tooling fixture for assembling automotive center channel assemblies using a flexible, rapid positioning mechanism.

[0019] Figure 7 This is a schematic diagram showing the arrangement of two sets of part tooling in the machining tooling of the automotive center channel assembly.

[0020] Figure 8 This is a magnified view of a portion of the transition notch of the side suspension.

[0021] Figure 9 This is a partially enlarged view of the transition notch of the side suspension in another embodiment. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Will Figure 1 The left side is defined as the left side of the machining tooling for the automotive center channel assembly. Figure 1 The right side is defined as the right side of the machining tooling for the automotive center channel assembly. Figure 7 The diagram shows the effect of arranging two sets of part tooling in the machining tooling of the automotive center channel assembly.

[0024] An embodiment of this utility model provides a flexible rapid positioning mechanism, which is installed in the machining fixture of the automotive center channel assembly, and is designed to quickly complete the positioning and installation of part fixture 8. See [link to documentation]. Figure 1 The automotive center channel assembly machining fixture has a rotating seat 2 and a positioning and fixing plate 1 mounted on the rotating seat via a side suspension 3. The positioning and fixing plate is a frame structure with a central ridge extending in the length direction and longitudinal beams on both sides of the central ridge. Multiple crossbeams are set inside the frame structure to strengthen the structural strength in order to meet the lightweight requirements of the positioning and fixing plate. The positioning and fixing plate serves as the carrier for the part fixture 8, and the rotating seat allows the positioning and fixing plate to perform a flipping action, thereby allowing the part fixture to complete the corresponding flipping action.

[0025] See Figure 2-3 As shown, the quick positioning mechanism includes positioning and fixing pin groups 4 symmetrically arranged at two side suspensions. The positioning and fixing pin groups of this quick positioning mechanism can quickly complete the positioning and fixing of the part tooling 8. The positioning pin groups distributed on a single side suspension have positioning pins respectively arranged on the upper and lower surfaces of the side suspension. Figure 2 The positioning and fixing pins distributed on the left side of the positioning and fixing plate 1 are used to fix the left side of the part tooling 8, while the positioning and fixing pins on the right side of the automotive center channel assembly machining tooling are used to fix the right side of the part tooling 8. The part tooling 8 of the automotive center channel assembly machining tooling is provided with tooling positioning holes 7 that cooperate with the positioning and fixing pins. It should be noted that a set of part tooling 8 is distributed on the upper and lower surfaces of the positioning and fixing plate 1 respectively. Figure 6 The part fixture 8 is distributed on one surface of the positioning and fixing plate 1. The coarse positioning device 5 for the part fixture is symmetrically arranged at the two side suspension points, see [reference]. Figure 2-3 Distributed on a single side suspension (e.g.) Figure 2 The rough positioning device for the left-side suspension of the automotive center tunnel assembly machining fixture shown has relatively distributed rough positioning blocks for the fixture. The spacing between the rough positioning blocks is adapted to the width of the fixture. See [reference needed]. Figure 4-5 The rough positioning block of the part tooling has a positioning plate 5a (the part tooling 8 is positioned between two relatively distributed positioning plates on the surface of the positioning fixing plate 1) and guide positioning inclined surfaces 5b set at the upper and lower ends of the positioning plate. The guide positioning inclined surfaces 5b allow the part tooling to be smoothly guided to the positioning plate 5a until it is positioned on the surface of the positioning fixing plate 1. Trapezoidal side plates 5c are distributed on both sides of the positioning plate. This structure can improve the structural strength of the rough positioning block of the part tooling. The end of the guide positioning inclined surface is provided with an end sealing plate 5d connected to the trapezoidal side plate. The middle of the positioning plate is provided with an assembly hole 5e. The part tooling rough positioning block can be smoothly fixed to the side hanger by a nut through the assembly hole 5e. In order to improve the structural strength, the part tooling rough positioning device 5 can be formed by one-piece metal stamping.

[0026] It is worth mentioning that the spacing between the coarse positioning blocks of the part tooling at each individual side suspension point in the part tooling coarse positioning device 5 is 3-5cm wider than the width of the part tooling base plate, for example, 4cm wider. This provides a 2cm margin for each part tooling when it needs to be installed in place, facilitating the quick placement of the part tooling base plate. Of course, to prevent the coarse positioning blocks from damaging the part tooling, the surface of the coarse positioning blocks in the part tooling coarse positioning device 5 can be covered with carbon fiber cloth, which satisfies the device's own strength requirements while preventing scratches on the part tooling.

[0027] See Figure 8 The side suspension 3 is provided with a transition notch 3a for mounting a coarse positioning block for a part tooling, the transition notch being located at the side suspension length ( Figure 8 The sidewalls (in the left and right directions) can abut against the rough positioning block of the part tooling, avoiding the problem of unstable installation caused by relying solely on screws for fixation. To improve the connection stability between the positioning plate and the side suspension, a clamping plate assembly 3b is provided at the side suspension to clamp and fix the positioning plate. As an improvement, four fixing screw holes for fixing the rough positioning block are provided on the first sidewall 3a-1 of the transition notch 3a, while a guide rod 3a-3 can be vertically provided on the second sidewall 3a-2. Correspondingly, a matching positioning hole is provided on the rough positioning block of the part tooling. This ensures that the rough positioning block of the part tooling can be quickly installed in place, and the positioning rod can be used to enhance the installation stability of the rough positioning block of the part tooling. It should be noted that the distance between the positioning rod and the first sidewall 3a-1 is controlled at 4-6mm to facilitate the assembly requirements of the rough positioning block of the part tooling.

[0028] The part tooling coarse positioning block has an upper extension extending upward toward the upper surface of the side suspension and a lower extension extending downward toward the lower surface of the side suspension. This vertically extending structure can meet the part tooling fixing requirements on both sides without having to set different coarse positioning blocks separately. The one-piece structure is beneficial for the assembly and maintenance of the structure.

[0029] See also Figure 2 The clamping mechanism 6, symmetrically arranged at the two side suspension points, can move and clamp the workpiece. The clamping mechanism 6 can use a clamping cylinder in conjunction with a clamping block to achieve the clamping action. Figure 2 As can be seen from the diagram, the clamping mechanism includes a clamping cylinder 6a and a clamping block 6b connected to the clamping cylinder. Figure 2 The document specifies two positions for the clamping block 6b: open and closed. The upright position indicates the clamping cylinder is open, while the horizontal position indicates the clamping cylinder is pressing down to clamp the part / tooling. Figure 6 After the parts shown are installed in place, they are clamped by the clamping mechanism, and then the subsequent welding operations on the parts to be processed can be carried out.

[0030] During the installation of the tooling, the tooling is guided into the positioning hole by the tooling coarse positioning mechanism. After the tooling enters the tooling coarse positioning, the tooling positioning hole (i.e., tooling positioning hole 7) is guided into the tooling positioning pin (i.e., the positioning pin of the positioning and fixing pin group 4) by the guide. In this embodiment, there are two tooling positioning pins, one on each side, with a circular structure, which constrain the tooling in both the X and Y directions. Subsequently, the clamping mechanism fixes the tooling to the fixed positioning plate by the clamping block through the action of the cylinder.

[0031] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A flexible rapid positioning mechanism, wherein the rapid positioning mechanism is disposed in a machining fixture for an automotive center channel assembly, the machining fixture for the automotive center channel assembly having at least a rotating seat and a positioning fixing plate mounted on the rotating seat via a side suspension, characterized in that, The rapid positioning mechanism includes: The positioning and fixing pin groups are symmetrically arranged on the two side suspensions. The positioning pin groups distributed on a single side suspension have positioning pins respectively arranged on the upper and lower surfaces of the side suspension. The part tooling of the automotive center channel assembly machining tooling is provided with tooling positioning holes that cooperate with the positioning and fixing pin groups. A part tooling rough positioning device symmetrically arranged at two side suspensions, the part tooling rough positioning device distributed at a single side suspension has relatively distributed part tooling rough positioning blocks, the part tooling rough positioning block has an upper extension extending upward toward the upper surface of the side suspension and a lower extension extending downward toward the lower surface of the side suspension, the part tooling rough positioning block has a positioning plate, guide positioning inclined surfaces disposed at the upper and lower ends of the positioning plate, trapezoidal side plates distributed on both sides of the positioning plate, an end sealing plate connected to the trapezoidal side plates is provided at the end of the guide positioning inclined surface, and an assembly hole is provided in the middle of the positioning plate; A clamping mechanism symmetrically positioned at the two side suspension points.

2. The flexible rapid positioning mechanism according to claim 1, characterized in that, In the part tooling coarse positioning device, the spacing between the part tooling coarse positioning blocks located at a single side suspension point is 3-5cm greater than the width of the part tooling base plate.

3. The flexible rapid positioning mechanism according to claim 1, characterized in that, The part tooling rough positioning device is integrally stamped.

4. The flexible rapid positioning mechanism according to claim 1, characterized in that, The surface of the coarse positioning block of the part tooling coarse positioning device is covered with carbon fiber cloth.

5. A flexible rapid positioning mechanism according to claim 1, characterized in that, The side suspension is provided with a transition notch for installing a rough positioning block for the tooling.

6. The flexible rapid positioning mechanism according to claim 1, characterized in that, The clamping mechanism includes a clamping cylinder and a clamping block connected to the clamping cylinder.

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