Positioning device for automobile welding process in cabin damping hole

Abstract

The utility model belongs to the technical field of automobile production, and particularly relates to a positioning device for an automobile welding process in a cabin damping hole, which comprises an air cylinder, a mounting seat, a supporting sleeve, a positioning pin, an air cylinder connecting piece, a pressing claw connecting piece and a pressing claw, the air cylinder is fixed to the bottom of the mounting base, a piston rod of the air cylinder penetrates through the interior of the mounting base to be connected with one end of the pressing claw connecting piece, the pressing claws are hinged to the upper portion of the pressing claw connecting piece in a circumferential mode, a guide groove is formed in the middle of each pressing claw, a sliding groove is formed in the supporting sleeve, a positioning rod is arranged in the sliding groove, and the positioning rod is connected with the pressing claw connecting piece. The positioning rod penetrates through the guide groove, the pressing claw penetrates through the sliding groove, the supporting sleeve is fixed to the upper portion of the installation base, the positioning pin is fixed to the upper portion of the supporting sleeve, a through groove is formed in the positioning pin, and the pressing claw penetrates through the through groove. The device is reasonable in design, simple in structure, easy and convenient to operate and convenient to maintain, and corresponding positioning devices can be designed for different parts of multiple vehicle types.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile production, and in particular relates to a positioning device for a shock-absorbing hole in a cabin in an automobile welding process. Background Art

[0002] In the production process of the welding workshop, the positioning process for the shock-absorbing holes of the cabin has always been relatively complicated. It depends on many factors such as the size of the parts, the size of the space, and the requirements of the production rhythm. At present, most of the positioning processes on the market adopt a composite positioning method, which consists of two separate mechanisms: positioning and clamping, which cooperate with each other to effectively position the shock-absorbing holes of the cabin.

[0003] Although the above positioning process is effective, considering the cost, the separate production of the positioning part and the clamping part, the multi-part processing and the purchase of the driving components used not only increase the production cost but also increase the production cost. Utility Model Content

[0004] The utility model aims to provide a positioning device for a shock-absorbing hole in a cabin during automobile welding process, so as to solve the problems existing in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for a shock-absorbing hole in a cabin in an automobile welding process, comprising a cylinder, a mounting seat, a support sleeve, a positioning pin, a cylinder connecting piece, a pressure claw connecting piece and a pressure claw; the cylinder is fixed to the bottom of the mounting seat, the piston rod of the cylinder passes through the interior of the mounting seat and is connected to one end of the pressure claw connecting piece, the upper part of the pressure claw connecting piece is hinged with the pressure claw around the circumference, the middle part of the pressure claw is provided with a guide groove, the support sleeve is provided with a slide groove, the slide groove is provided with a positioning rod, the positioning rod passes through the guide groove, the pressure claw passes through the slide groove, the support sleeve is fixed to the upper part of the mounting seat, the positioning pin is fixed to the upper part of the support sleeve, the positioning pin is provided with a through groove, and the pressure claw passes through the through groove.

[0006] Preferably, an adjustment gasket is provided between the support sleeve and the mounting seat.

[0007] Preferably, a mounting groove is formed on the side of the support sleeve, and the positioning rod is mounted on the support sleeve through the mounting groove.

[0008] Preferably, there are three pressing claws.

[0009] Preferably, a connecting plate is installed on the side of the mounting seat.

[0010] Preferably, the upper portion of the guide groove is vertical, and the lower portion is inclined outward.

[0011] The beneficial effects of the utility model are: compared with the existing manufacturing technology, the device is reasonably designed, simple in structure, easy to operate and maintain, and corresponding positioning devices can be designed for different parts of multiple vehicle models, saving space, saving manufacturing time and manufacturing costs, greatly improving the work efficiency of each link, the application effect is very significant, and the market prospect is very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection between the pressure claw connector and the pressure claw in the utility model;

[0014] Figure 3 It is a top view of the positioning pin in the utility model;

[0015] Figure 4 It is a three-dimensional diagram of the positioning pin in the utility model;

[0016] Figure 5 It is a top view of the support sleeve in the utility model;

[0017] Figure 6 It is a three-dimensional diagram of the support sleeve in the utility model. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0019] like Figure 1-6 As shown, a positioning device for the shock-absorbing hole of the cabin in the automobile welding process includes a cylinder 1, a first connecting plate 2, a second connecting plate 3, a mounting seat 4, an adjustment gasket 5, a support sleeve 6, a positioning pin 7, a cylinder connector 8, a pressure claw connector 9 and a pressure claw 10; the cylinder is fixed at the bottom of the mounting seat, the piston rod of the cylinder passes through the interior of the mounting seat and is connected to one end of the pressure claw connector, the upper part of the pressure claw connector is hinged with the pressure claw, the middle part of the pressure claw is provided with a guide groove 11, the support sleeve is provided with a slide groove 12, the slide groove is provided with a positioning rod (not shown in the figure), the positioning rod passes through the guide groove, the pressure claw passes through the slide groove, the support sleeve is fixed to the upper part of the mounting seat, the positioning pin is fixed to the upper part of the support sleeve, the positioning pin is provided with a through groove 13, and the pressure claw passes through the through groove. The side of the support sleeve is provided with a mounting groove 14, and the positioning rod is installed on the support sleeve from the mounting groove.

[0020] in:

[0021] Cylinder: purchased part, the only item purchased for this device, the model can be replaced according to the actual brand requirements of this device.

[0022] Mounting seat: Material Q235A, one-piece molded part, used to install the cylinder and positioning surface, an important part that is combined with the pressure claw positioning pin and connecting parts.

[0023] Special adjustment gasket: material 60Si2Mn, with dimensions such as (T=1+1+0.5+0.2) in mm, to facilitate adjustment of the gap between the part and the supporting surface, thereby ensuring the precise position size of the part on the positioning surface.

[0024] Support surface: Material 45# steel, the surface part is NC processed and the surface is high-frequency quenched, 40-50HRC. The quenching process makes it meet the technical requirements of contact with parts. It not only plays a positioning role for parts, but also is an important part for installing locating pins, so that the locating pins are combined with the mounting seat.

[0025] Locating pin: material 40Cr, quenching + low temperature tempering, HRC50~55, the surface of the effective positioning part is hard chrome plated with 0.02mm, CNC machining, and it is processed according to different positioning pin processing methods. It is characterized by high strength, wear resistance, and plays a role in positioning the shock-absorbing hole.

[0026] Cylinder connector: Material Q235A, one end of the threaded hole is used to connect the cylinder, and the other end of the external thread is used to connect the pressure claw connector.

[0027] Pressure claw connector: material Q235A, the middle threaded hole is used to install the cylinder connector, and three groups of pin holes are evenly distributed around it for installing the pressure claw. The three groups of pin holes all contain top screw holes to prevent the pins for installing the pressure claw from rotating and reduce wear.

[0028] Press jaws: Material 45# steel, three press jaws of equal size, the surface part is NC processed and the surface is high-frequency quenched, 40-50HRC, which makes it have high strength and high wear resistance.

[0029] The first and second connecting plates: material Q235A, common parts, which are used to fix the device on the fixture or other connecting parts on other mechanisms, and there is a gasket between the two connecting plates to facilitate the adjustment of the position of the positioning pin.

[0030] The above are all the components of the present invention, and the assembly process is as follows;

[0031] The first step is to install the pressure claw on the pressure claw connector, and then assemble the pressure claw connector and the cylinder connector into a whole.

[0032] The second step is to extend the cylinder piston rod, pass the entirety of the first step through one end of the mounting base, connect it to the cylinder at the other end, and then connect the cylinder and the mounting base tightly.

[0033] The third step is to install the special adjustment gasket, then install the positioning surface, tighten the positioning surface to the mounting base, and then use pins to fix the three pressure claws on the positioning surface.

[0034] Working process: Assemble the device according to the above technical solution, and install it on the fixture base or its fixed column through the first connecting plate. During the debugging process, first adjust the positioning surface of the locating pin and the pressure claw through three-coordinate measurement. The position of the locating pin can be adjusted through the gasket between the first and second connecting plates and the mounting seat. The positioning surface can be adjusted through special adjustment gaskets. The clamping size of the pressure claw can be adjusted by reducing the gasket at the bottom of the second connecting plate and adding special adjustment gaskets. After the above three points are adjusted through three-coordinate measurement, it can be put into use.

[0035] The working principle is as follows. After the cylinder is ventilated, the air inlet and outlet are electrically controlled. After the air is inlet, the cylinder piston rod extends out, pushing the middle connecting piece to drive the pressure claw to slide along the pin of the fixed pressure claw on the positioning surface. The pressure claw then moves closer to the middle and shrinks back to the inside of the positioning pin. During use, the parts of the cabin shock absorber hole are first sent to this station through transmission, and then the shock absorber hole is passed through the positioning pin of this device and fits with the positioning surface. At this time, the cylinder discharges air, and the cylinder piston rod retracts into the cylinder. The piston rod drives the cylinder connecting piece, and then pulls the pressure claw to slide along the pin of the fixed pressure claw, so that the pressure claw slides downward and the tip turns outward, and finally it is tightly pressed on the part, thereby achieving the purpose of positioning and clamping.

[0036] In summary, a positioning device for the shock absorbing hole in the engine cabin during the automobile welding process has an ingenious structure and is easy to operate, thus providing a better choice for the automobile manufacturing industry in positioning the shock absorbing hole in the engine cabin.

[0037] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A positioning device for the shock-absorbing hole in the engine compartment in the automobile welding process, characterized in that : It includes a cylinder, a mounting seat, a supporting sleeve, a positioning pin, a cylinder connecting piece, a pressure claw connecting piece and a pressure claw; the cylinder is fixed to the bottom of the mounting seat, the piston rod of the cylinder passes through the inside of the mounting seat and is connected to one end of the pressure claw connecting piece, the upper part of the pressure claw connecting piece is hinged with the pressure claw around the circumference, the middle part of the pressure claw is provided with a guide groove, the supporting sleeve is provided with a slide groove, the slide groove is provided with a positioning rod, the positioning rod passes through the guide groove, the pressure claw passes through the slide groove, the supporting sleeve is fixed to the upper part of the mounting seat, the positioning pin is fixed to the upper part of the supporting sleeve, the positioning pin is provided with a through groove, and the pressure claw passes through the through groove.

2. The positioning device for the shock-absorbing hole in the engine compartment in the automobile welding process according to claim 1 is characterized in that: An adjusting gasket is arranged between the supporting sleeve and the mounting seat.

3. The positioning device for the shock-absorbing hole in the engine compartment in the automobile welding process according to claim 1 is characterized in that: The side of the support sleeve is provided with an installation groove, and the positioning rod is installed on the support sleeve through the installation groove.

4. The positioning device for the shock-absorbing hole in the engine compartment in the automobile welding process according to claim 1 is characterized in that: The number of the pressing claws is three.

5. The positioning device for the shock-absorbing hole in the engine compartment in the automobile welding process according to claim 1, characterized in that: A connecting plate is installed on the side of the mounting seat.

6. The positioning device for the shock-absorbing hole in the engine compartment in the automobile welding process according to claim 1 is characterized in that: The upper part of the guide groove is vertical, and the lower part is inclined outwards.

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