A fast positioning tool and positioning method

Abstract

The present invention provides a quick positioning tool, comprising two left clamp arms arranged front and back and two right clamp arms arranged front and back, the left clamp arm and the right clamp arm are arranged opposite to each other, and the opposite ends of the left clamp arm and the right clamp arm clamp two pipes from both sides along the relative directions to prevent them from sliding up and down. The left clamp arm and the right clamp arm fix the two pipes inward from both sides to limit the upward and downward and outward movement of the pipes. It also includes a clamping mechanism that clamps the two pipes from the upper side to the lower side to prevent them from sliding toward each other. The upper side of the clamping mechanism is fixed to limit the inward movement of the two pipes. The positioning method of the above-mentioned round tube profile quick positioning tool in the trial production process comprises the following steps: a left clamp arm loading step, a right clamp arm loading step and an upper clamp arm loading step.

Description

Technical Field

[0001] The invention relates to the field of automobile round pipe positioning tooling, and in particular to a rapid positioning tooling and a positioning method. Background Art

[0002] During the research and development and trial production of new models of automobile products, it is often necessary to trial produce and verify body parts or some mid-term facelift parts of some models. Among them, round tube profile parts often need to be trial produced and verified. To trial produce and verify these round tube parts, we must first consider how to make the positioning fixtures for such parts. If we follow the conventional fixture development process of most car companies, not only will the cycle be long, but the cost of developing new fixtures will also be high. Focusing on how to shorten the production cycle of tooling and fixtures for round tube parts and significantly reduce the cost of developing fixtures through the design and process of self-made fixtures, it is very important to combine the existing equipment and the structural characteristics of the round tube parts themselves to design and design trial fixtures and novel production methods. How to reduce the design and manufacturing costs of positioning welding fixtures for trial production and welding of round tube profile parts for automobile bodies, and at the same time reduce the footprint of fixtures, is an urgent problem that technicians in this field need to solve. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a rapid positioning tool and a positioning method, which solves the problems existing in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a quick positioning tool, comprising two left clamping arms arranged front and back and two right clamping arms arranged front and back, wherein the left clamping arm and the right clamping arm are arranged opposite to each other, and the opposite ends of the left clamping arm and the right clamping arm clamp the two pipes from both sides along the opposite directions to prevent them from sliding up and down. The left clamping arm and the right clamping arm fix the two pipes inwardly from both sides to limit the upward and downward and outward movement of the pipes.

[0005] The utility model also comprises a clamping mechanism for clamping the two pipes downward from the upper side to prevent the two pipes from sliding toward each other. The upper side of the clamping mechanism is fixed to limit the inward movement of the two pipes.

[0006] Optionally, the left clamp arm and the right clamp arm have opposite ends each provided with a horizontal slot, and the horizontal slot has a horizontal length.

[0007] Optionally, the left clamp arm and the right clamp arm are both plate-shaped and fit with the vehicle body. The inner end of the horizontal clamping slot is in a "U" shape that fits the pipe, so as to better fit the pipe.

[0008] Optionally, the left clamp arm and the right clamp arm are installed on the vehicle body through positioning pins, and at least two positioning pins are arranged perpendicular to each other on the left clamp arm, and at least two positioning pins are arranged perpendicular to each other on the right clamp arm. The left clamp arm and the right clamp arm are also fixed with protrusions for positioning the contact end with the vehicle body and guide sleeves fixed on the protrusions for positioning the positioning pins.

[0009] Optionally, the clamping mechanism includes an upper clamping arm located on the upper side of the two pipes, and the lower end of the upper clamping arm is provided with two vertical clamping slots capable of clamping the pipes. The vertical clamping slots have a vertical length and can clamp the two pipes from the upper side.

[0010] Optionally, two upper clamping arms are provided along the length direction of the pipe, so that the fixing effect is better and more stable.

[0011] Optionally, the two upper clamping arms are connected by a pipe beam, so that the two upper clamping arms are more stable and not easy to fall apart.

[0012] Optionally, a fixing mechanism is also included between the left clamp arm and the upper clamp arm, and between the right clamp arm and the upper clamp arm. The fixing mechanism can fix the left clamp arm and the upper clamp arm together, and fix the right clamp arm and the upper clamp arm together. The contact points between the left clamp arm and the upper clamp arm, and the contact points between the right clamp arm and the upper clamp arm are fixed by the fixing mechanism to prevent loosening.

[0013] Optionally, the fixing mechanism includes a manual caliper, which can fix the left clamp arm and the upper clamp arm together and the right clamp arm and the upper clamp arm together when the manual caliper is tightened. The manual caliper includes a generally U-shaped clamp frame and a knob threadedly connected to the clamp frame, and the knob can clamp the object to be clamped against the clamp frame when the knob is tightened.

[0014] A method for quickly positioning a tool comprises the following steps:

[0015] The left clamp arm installation step is to install the two left clamp arms on the vehicle body through the positioning pins, and put the first pipe into the horizontal clamping groove;

[0016] The right clamp arm installation step is to install the right clamp arm on the vehicle body through the positioning pin, and put the second pipe into the horizontal clamping groove;

[0017] The steps for installing the upper clamp arm are as follows: place the upper clamp arm on the upper side of the two pipes, clamp the vertical clamping slot on the two pipes, fix the left clamp arm and the upper clamp arm by manual calipers, and fix the right clamp arm and the upper clamp arm.

[0018] One of the above technical solutions has the following advantages or beneficial effects:

[0019] 1. The left clamp arm and the right clamp arm are attached to the car body to achieve linear positioning. The left clamp arm and the right clamp arm fix the pipe from both sides, and the upper clamp arm fixes the pipe from the upper side. Compared with the traditional fixation, this is detachable and uses a lower cost to effectively solve the problem of high cost caused by the original large round pipe purchased from outside and the trial welding tooling of the car body. At the same time, it is installed on the car and occupies a small area;

[0020] 2. At least two vertical positioning pins are provided on the left clamp arm and the right clamp arm to achieve vertical positioning. The projections used for installing the positioning pins fit the vehicle body to achieve surface positioning.

[0021] 3. Manual calipers can better fix the upper clamp arm to avoid loosening. Moreover, the overall structure is simple, the weight is light, and it is easy to install and disassemble, and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the connection between the left clamp arm and the right clamp arm of the quick positioning tool provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of the quick positioning tooling after installation provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the connection between the left clamp arm and the positioning pin after the quick positioning tooling provided in an embodiment of the present invention is installed;

[0025] Figure 4 A schematic diagram of the operation of a positioning method for a rapid positioning tool provided in an embodiment of the present invention.

[0026] In the figure: 1, left clamp arm; 11, horizontal slot; 12, positioning pin; 2, right clamp arm; 3, upper clamp arm; 31, vertical slot; 32, pipe beam; 4, manual caliper. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-4As shown, an embodiment of the present invention provides a quick positioning tool, including two left clamp arms 1 arranged front and back and two right clamp arms 2 arranged front and back, the left clamp arm 1 and the right clamp arm 2 are arranged opposite to each other, and the opposite ends of the left clamp arm 1 and the right clamp arm 2 clamp the two pipes from both sides along the opposite direction to prevent up and down sliding. The left clamp arm 1 and the right clamp arm 2 fix the two pipes inward from both sides to limit the upward and downward and outward movement of the pipes. A horizontal clamping groove 11 is provided at the opposite ends of the left clamp arm 1 and the right clamp arm 2. The horizontal clamping groove 11 has a horizontal length. The left clamp arm 1 and the right clamp arm 2 are both plate-shaped and fit with the vehicle body. The left clamp arm 1 and the right clamp arm 2 are perpendicular to the vehicle body to achieve linear contact with the vehicle body, and the inner end of the horizontal clamping groove 11 is "U"-shaped to fit the pipe. Better fit to the pipe. The left clamp arm 1 and the right clamp arm 2 are installed on the vehicle body through the positioning pins 12, and at least two positioning pins 12 are arranged perpendicularly on the left clamp arm 1, and at least two positioning pins 12 are arranged perpendicularly on the right clamp arm 2. The left clamp arm 1 and the right clamp arm 2 are also fixed with protrusions for positioning the contact end of the vehicle body and guide sleeves fixed on the protrusions for positioning the positioning pins 12. This mutually perpendicular positioning function can fully realize the technical requirements of the fixture for precise positioning. After all the positioning units on both sides are inserted into the positioning pins 12, they together with the upper clamp arm 3 groups on the upper part constitute the stability of the Y-direction and Z-direction positions of the pipe body coordinate direction, and the only technical requirements of the fixture.

[0029] The utility model also comprises a clamping mechanism for clamping the two pipes downward from the upper side to prevent the two pipes from sliding toward each other. The upper side of the clamping mechanism is fixed to limit the inward movement of the two pipes.

[0030] The clamping mechanism includes an upper clamping arm 3 located on the upper side of the two pipes, and the lower end of the upper clamping arm 3 is provided with two vertical clamping grooves 31 capable of clamping the pipes. The vertical clamping groove 31 has a vertical length and can clamp the two pipes from the upper side. Two upper clamping arms 3 are arranged along the length direction of the pipe. The fixing effect is better and more stable. The two upper clamping arms 3 are connected by a pipe beam 32. The two upper clamping arms 3 are more stable and not easy to fall apart. The left clamping arm 1 and the right clamping arm 2 are provided with mounting holes for installing the pipe beam 32, and then welded and connected. Here, two parallel pipe beams 32 are arranged. The left clamping arm 1, the right clamping arm 2 and the upper clamping arm 3 are all in plate shape.

[0031] It also includes a fixing mechanism between the left clamp arm 1 and the upper clamp arm 3 and between the right clamp arm 2 and the upper clamp arm 3. The fixing mechanism can fix the left clamp arm 1 and the upper clamp arm 3 together and the right clamp arm 2 and the upper clamp arm 3 together. The contact between the left clamp arm 1 and the upper clamp arm 3 and the contact between the right clamp arm 2 and the upper clamp arm 3 are fixed by the fixing mechanism to prevent loosening. The fixing mechanism includes a manual caliper 4. When the manual caliper 4 is tightened, the left clamp arm 1 and the upper clamp arm 3 can be fixed together and the right clamp arm 2 and the upper clamp arm 3 can be fixed together. The manual caliper includes a generally U-shaped clamp frame and a knob threadedly connected to the clamp frame. When the knob is tightened, the support object can be clamped against the clamp frame.

[0032] The left clamp arm 1, the right clamp arm 2 and the upper clamp arm 3 are made of steel plates. The design size and data structure are completed by sheet metal bending technology using 3 mm thick steel plates. At the same time, laser processing technology is used according to the accuracy requirements of the fixture (the laser accuracy is ±0.1, which is higher than the general accuracy value of the fixture ±0.2). The card slots are directly processed on the plate itself to achieve the quick plug-in requirements. Laser processing can not only ensure the function of high-precision positioning of pipes, but also achieve the quick plug-in and clamping positioning requirements when installing the fixture.

[0033] Taking the rapid positioning of tooling for round tube profiles in a trial production process as an example, the positioning method proposed by the present invention includes the following steps:

[0034] Left clamp arm installation step, installing the two left clamp arms 1 on the vehicle body through the positioning pins 12, and placing the first pipe into the horizontal slot 11, installing the two left clamp arms 1 on the vehicle body, and then placing the pipe into the horizontal slots 11 of the two left clamp arms 1;

[0035] Right clamp arm installation step: install the right clamp arm 2 on the vehicle body through the positioning pin 12, and put the second pipe into the horizontal slot 11. The two right clamp arms 2 are installed on the vehicle body, and the second pipe is put into the horizontal slots 11 of the two right clamp arms 2;

[0036] The upper clamp arm installation step is to place the upper clamp arm 3 on the upper side of the two pipes, and clamp the vertical slot 31 on the two pipes, fix the left clamp arm 1 and the upper clamp arm 3 by the manual caliper 4, and fix the right clamp arm 2 and the upper clamp arm 3, clamp the upper clamp arm 3 on the two pipes from the upper side, clamp it through the vertical slot 31, and then clamp it with the manual caliper 4 to prevent it from loosening.

[0037] Compared with traditional fixation, this one is detachable and uses lower cost, effectively realizing and solving the high cost problem caused by the original use of purchased large round pipes and automobile body welding trial production tooling. At the same time, it is installed on the vehicle, occupies a small area, has a simple overall structure, is light in weight, and is easy to install and disassemble.

[0038] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A rapid positioning tool, characterized in that: The invention comprises two left clamping arms (1) arranged front and back and two right clamping arms (2) arranged front and back, and is characterized in that: the left clamping arm (1) and the right clamping arm (2) are arranged opposite to each other, and the opposite ends of the left clamping arm (1) and the right clamping arm (2) clamp the two pipes from both sides along the opposite direction to prevent them from sliding up and down; It also includes a clamping mechanism for clamping the two pipes downward from the upper side to prevent them from sliding toward each other; The left clamping arm (1) and the right clamping arm (2) are both provided with a horizontal clamping groove (11) at the opposite ends thereof; The clamping mechanism comprises an upper clamping arm (3) located on the upper side of the two pipes, and the lower end of the upper clamping arm (3) is provided with two vertical clamping grooves (31) capable of clamping the pipes; The left clamp arm (1) and the right clamp arm (2) are both plate-shaped and fit closely to the vehicle body.

2. The rapid positioning tool according to claim 1, characterized in that: The left clamp arm (1) and the right clamp arm (2) are mounted on the vehicle body via positioning pins (12), and at least two positioning pins (12) are arranged perpendicular to each other on the left clamp arm (1), and at least two positioning pins (12) are arranged perpendicular to each other on the right clamp arm (2). The left clamp arm (1) and the right clamp arm (2) are also fixed with protrusions for positioning the contact end with the vehicle body and guide sleeves fixed on the protrusions for positioning the positioning pins (12).

3. The rapid positioning tool according to claim 1, characterized in that: Two upper clamping arms (3) are arranged along the length direction of the pipe.

4. The rapid positioning tool according to claim 3, characterized in that: The two upper clamping arms (3) are connected via a pipe beam (32).

5. The rapid positioning tool according to claim 4, characterized in that: The invention also comprises a fixing mechanism between the left clamp arm (1) and the upper clamp arm (3) and between the right clamp arm (2) and the upper clamp arm (3), wherein the fixing mechanism can fix the left clamp arm (1) and the upper clamp arm (3) together and fix the right clamp arm (2) and the upper clamp arm (3) together.

6. The rapid positioning tool according to claim 5, characterized in that: The fixing mechanism comprises a manual caliper (4), which can fix the left clamp arm (1) and the upper clamp arm (3) together and fix the right clamp arm (2) and the upper clamp arm (3) together when the manual caliper (4) is tightened.

7. A positioning method for the rapid positioning tool as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: The left clamp arm installation step comprises installing the two left clamp arms (1) on the vehicle body via the positioning pins (12), and placing the first pipe into the horizontal clamping groove (11); The right clamp arm installation step comprises installing the right clamp arm (2) on the vehicle body through the positioning pin (12), and placing the second pipe into the horizontal clamping groove (11); The upper clamp arm installation step includes placing the upper clamp arm (3) on the upper side of the two pipes, clamping the vertical clamping groove (31) on the two pipes, fixing the left clamp arm (1) and the upper clamp arm (3) by a manual clamp (4), and fixing the right clamp arm (2) and the upper clamp arm (3).

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