Full-length welding tool clamp for mine truck frame

Abstract

The utility model discloses a full-length welding tool clamp for a mine truck frame. The full-length welding tool clamp comprises a head tool used for fixing the head of the frame and a tail tool used for fixing the tail of the frame. The head tool comprises a head tool body, a head supporting mechanism, a head clamping mechanism and a head centering mechanism, the head supporting mechanism, the head clamping mechanism and the head centering mechanism are installed on the head tool body, and the tail tool comprises a tail tool body and a tail clamping mechanism installed on the tail tool body. The head supporting mechanism, the head clamping mechanism and the head centering mechanism have no specific requirements for the first cross beam of the frame, can still be used after the size is adjusted, are good in compatibility, can meet the welding requirements of frames in different length, width and height states, and reduce time waste caused by tool switching. A tail supporting cylinder, an oil cylinder support taper pin, an overturning base taper pin and the like in the tail clamping mechanism can be independently detached, replaced and maintained, and a shaft sleeve is clamped through a conical inclined face, so that the tail clamping mechanism can adapt to frames of different sizes.

Description

Technical Field

[0001] The utility model relates to a full-welding fixture for a mining truck frame, belonging to the field of mining dump trucks. Background Art

[0002] In the field of mining dump trucks, with the continuous upgrading and replacement of products, the design states of the frames of new vehicle models are rich and diverse. In order to better weld the frame, the frame is often fixed on a positioner through a fixture and flipped to facilitate adjusting the appropriate welding posture. During the production process of frame welding, each time the product is changed, it greatly affects the fixture life, product quality, and production efficiency. Therefore, to achieve high-quality production, adjustable full-welding fixtures need to be made for frames of different lengths, widths, and heights to meet the production requirements. Summary of the Invention

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides a full-welding fixture for a mining truck frame, which can conveniently clamp and fix the frame accurately and quickly during the production process, and meet the production requirements of frames with diverse states.

[0004] To achieve the above purpose, a full-welding fixture for a mining truck frame adopted by the utility model includes a head fixture for fixing the head of the frame and a tail fixture for fixing the tail of the frame;

[0005] The head fixture includes a head fixture main body, a head support mechanism, a head clamping mechanism, and a head centering mechanism respectively installed on the head fixture main body. The head fixture main body includes a base, linear guide rails symmetrically installed at both ends of the base, and sliders slidably installed on the linear guide rails; the head support mechanism includes a lower support plate for supporting the lower end face of the frame, a front baffle for pressing against the front end face of the frame, and a front guide bracket for rough positioning of the left and right positions of the frame; the head clamping mechanism includes a height positioning screw, an adjustment screw, a pressing plate, and a nut. The pressing plate is respectively installed on the height positioning screw and the adjustment screw, and the nut is installed on the adjustment screw to squeeze the pressing plate and clamp the frame; the head centering mechanism includes a guide shaft support installed on the base and a support seat connected to the slider, and a centering adjustment structure is installed between the guide shaft support and the support seat;

[0006] The tail fixture includes a tail fixture main body and a tail clamping mechanism installed on the tail fixture main body. The tail clamping mechanism includes a rear guide bracket for rough positioning of the frame, a tail support cylinder for supporting the tail of the frame, and a taper pin structure for supporting the force during the rotation of the frame.

[0007] In some embodiments, a reinforcing plate and reinforcing ribs are installed on the base.

[0008] In some embodiments, a bellows cover for protecting the linear guide rails is installed on the base.

[0009] In some embodiments, a connecting plate for mounting a guide shaft support and a limiting plate for limiting the guide shaft support are mounted on the base.

[0010] In some embodiments, the centering adjustment structure includes a movable support mounted on a support base, a screw rod mounted on the movable support and the guide shaft support, a coupling mounted on the guide shaft support, and a copper nut mounted on the movable support.

[0011] In some embodiments, the taper pin structure includes a cylinder support taper pin and a tipping seat taper pin.

[0012] In some embodiments, a support base stiffener is mounted on the support base.

[0013] In some embodiments, a long circular hole for connecting an adjusting screw rod is formed in the pressing plate.

[0014] In some embodiments, a mounting plate is mounted on the slider, and the support base is mounted on the mounting plate.

[0015] Compared with the prior art, the full-welding fixture for a mining truck frame of the present utility model has the following beneficial effects:

[0016] 1) For the traditional head clamping fixture, usually a front taper pin is used to clamp a hole in the middle of the first cross beam. If the position and size of the hole are adjusted, the head clamping fixture cannot be compatible. The head support mechanism, head clamping mechanism and head centering mechanism of the present utility model have no specific requirements for the first cross beam of the frame and can still be used after size adjustment, with good compatibility, capable of meeting the welding requirements of frames in different length, width and height states, and reducing the time waste caused by tooling switching.

[0017] 2) The tail support cylinder, cylinder support taper pin, tipping seat taper pin, etc. in the tail clamping mechanism can be separately disassembled, replaced and repaired, and can adapt to frames of different sizes through a conical inclined plane clamping bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the use of the head tooling of the present utility model;

[0020] Figure 2Schematic diagram of the main body of the head tooling of the present utility model;

[0021] Figure 3 Schematic diagram of the head support mechanism, head clamping mechanism and head centering mechanism of the present utility model;

[0022] Figure 4 Schematic diagram of the tail tooling of the present utility model;

[0023] Figure 5 Schematic diagram of the usage state of the tail tooling of the present utility model;

[0024] Figure 6 Schematic diagram of the usage structure of the present utility model;

[0025] Figure 7 Schematic diagram of the centering adjustment structure of the present utility model;

[0026] In the figure: 1. Main body of the head tooling, 1-1. Base, 1-2. Linear guide rail, 1-3. Connecting plate, 1-4. Reinforcing plate, 1-5. Reinforcing rib, 1-6. Bellows cover, 1-7. Slide block, 1-8. Limiting plate, 2. Head support mechanism, 2-1. Lower support plate, 2-2. Front baffle, 2-3. Front guiding bracket, 3. Head clamping mechanism, 3-1. Height positioning screw, 3-2. Adjusting screw, 3-3. Pressure plate, 3-4. Nut, 4. Head centering mechanism, 4-1. Support seat, 4-2. Support seat reinforcing rib, 4-3. Screw, 4-4. Mounting plate, 4-5. Coupling, 4-6. Guide shaft support, 4-7. Copper nut, 4-8. Movable support, 5. Main body of the tail tooling, 6. Tail clamping mechanism, 6-1. Rear guiding bracket, 6-2. Tail support cylinder, 6-3. Oil cylinder support taper pin, 6-4. Flip seat taper pin, 7. Truck frame, 7-1. First cross beam, 7-2. Flip seat, 7-3. Oil cylinder support. Detailed implementation manners

[0027] To make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of this application will be described in detail below through the attached drawings and specific embodiments. It should be understood that the specific features in the embodiments of this application and the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. Without conflict, the technical features in the embodiments of this application and the embodiments can be combined with each other.

[0028] As Figures 1-6 shown, a full-welding fixture for a mining truck frame includes a head tooling for fixing the head of the truck frame 7 and a tail tooling for fixing the tail of the truck frame 7;

[0029] The head tooling includes a head tooling main body 1, a head support mechanism 2, a head clamping mechanism 3, and a head centering mechanism 4 that are respectively installed on the head tooling main body 1;

[0030] The head tooling main body 1 serves as the main structure for connecting other mechanisms, and it includes a base 1-1, linear guide rails 1-2 symmetrically installed at both ends of the base 1-1, and sliders 1-7 slidably installed on the linear guide rails 1-2;

[0031] The head support mechanism 2 is used to support the lower part of the front end of the vehicle frame and block the front end face, and it is the main stress position at 0° (the posture when the vehicle frame is placed flat, as Figure 6 shown). It includes a lower support plate 2-1 for supporting the lower end face of the vehicle frame, a front baffle 2-2 for pressing against the front end face of the vehicle frame, and a front guide bracket 2-3 for rough positioning of the left and right positions of the vehicle frame;

[0032] The head clamping mechanism 3 is used to press the upper part of the front end of the vehicle frame. It includes a height positioning screw 3-1, an adjustment screw 3-2, a pressing plate 3-3, and a nut 3-4. The pressing plate 3-3 is respectively installed on the height positioning screw 3-1 and the adjustment screw 3-2. The pressing plate 3-3 is threadedly connected to the height positioning screw 3-1. The nut 3-4 is installed on the adjustment screw 3-2 to squeeze the pressing plate 3-3 and clamp the vehicle frame 7. By adjusting the position of the nut 3-4, the height of the pressing plate 3-3 is changed, so that the head clamping mechanism 3 clamps the first cross beam 7-1 of the vehicle frame 7, and it is the main stress position at 180°;

[0033] The head centering mechanism 4 includes a guide shaft support 4-6 installed on the base 1-1 and a support seat 4-1 connected to the slider 1-7. A centering adjustment structure is installed between the guide shaft support 4-6 and the support seat 4-1. The head centering mechanism 4 is used to clamp both sides of the front end of the vehicle frame 7;

[0034] The tail tooling includes a tail tooling main body 5 and a tail clamping mechanism 6 installed on the tail tooling main body 5. The tail clamping mechanism 6 includes a rear guide bracket 6-1 for rough positioning of the vehicle frame 7, a tail support cylinder 6-2 for supporting the tail of the vehicle frame, and a taper pin structure for supporting the stress during the rotation of the vehicle frame.

[0035] In some embodiments, as Figure 2 shown, a reinforcing plate 1-4 and a reinforcing rib 1-5 are installed on the base 1-1. The strength of the main body is ensured by the reinforcing plate 1-4, and the strength of the bolted joint surface with the positioner is ensured by the reinforcing rib 1-5.

[0036] In some embodiments, as Figure 2 shown, a bellows guard 1-6 is installed on the base 1-1. The linear guide rail 1-2 is effectively protected by the bellows guard 1-6.

[0037] In some embodiments, such as Figure 2 , Figure 3 shown, a connecting plate 1-3 for mounting the guide shaft support 4-6 and a limiting plate 1-8 for limiting the guide shaft support 4-6 are mounted on the base 1-1.

[0038] In some embodiments, such as Figure 3 , Figure 7 shown, the centering adjustment structure includes a movable support 4-8 mounted on the support base 4-1, a screw 4-3 mounted on the movable support 4-8 and the guide shaft support 4-6. A coupling 4-5 is mounted on the guide shaft support 4-6, and a copper nut 4-7 is bolted to the movable support 4-8. One end of the screw 4-3 is rotatably connected to the coupling 4-5, and the other end is in transmission connection with the copper nut 4-7 through threads. Manually rotate the screw 4-3 of the centering adjustment structure to drive the support base 4-1 to move, so that the front ends on both sides of the head centering mechanism 4 are tightened synchronously towards the middle, and the first cross beam 7-1 of the vehicle frame 7 falls into the card slot of the support base 4-1, serving as the main stress positions at 90° and 270°.

[0039] In some embodiments, such as Figure 4 shown, the taper pin structure includes an oil cylinder support taper pin 6-3 and a swivel seat taper pin 6-4 for clamping the oil cylinder support 7-3 and the swivel seat 7-2. When the vehicle frame 7 rotates 180°, it is supported by the oil cylinder support taper pin 6-3; when the vehicle frame 7 rotates 90°, it is supported by the swivel seat taper pin 6-4. The functions of the oil cylinder support taper pin 6-3 and the swivel seat taper pin 6-4 are the same and can be replaced. Due to the production tolerance of the vehicle frame parts themselves, they are clamped and fixed by the tail support cylinder 6-2 and the oil cylinder support taper pin 6-3 or the tail support cylinder 6-2 and the swivel seat taper pin 6-4 to ensure the force at 0°, 90°, 180°, and 270°. In addition, the taper angles of the taper pin slopes of the oil cylinder support taper pin 6-3 and the swivel seat taper pin 6-4 are the same as the chamfer slopes of the bushings of the clamped oil cylinder support 7-3 and the swivel seat 7-2, which is used to increase the contact area and change from point contact to surface contact.

[0040] In some embodiments, such as Figure 3 shown, a support base reinforcing rib 4-2 is mounted on the support base 4-1 to increase the strength of the support base 4-1.

[0041] In some embodiments, a long circular hole is opened at the connection between the pressing plate 3-3 and the adjusting screw 3-2, and the position can be adjusted back and forth.

[0042] In some embodiments, such as Figure 3As shown, a mounting plate 4-4 is bolted to the slider 1-7, and a support seat 4-1 is bolted to the mounting plate 4-4. The connection stability between the slider 1-7 and the support seat 4-1 is improved through the mounting plate 4-4.

[0043] The usage process is as follows:

[0044] Bolting the tooling and the rotary surface of the positioner, adjusting to the position suitable for the frame length through the positioner, opening the head and tail toolings to the maximum stroke, hoisting the frame 7, determining the left and right positions of the frame 7 by approaching the front and rear guiding brackets, the whole frame landing on the cylindrical surface of the tail tooling and the head support mechanism 2, determining the front and rear positions of the frame by making the front end face of the first cross beam 7-1 of the frame 7 fit the front baffle 2-2 of the head support mechanism 2, and the cone pins 6-3 of the oil cylinder support seat at the tail and the cone pin 6-4 of the flipping seat being inserted into the oil cylinder support seat 7-3 and the flipping seat 7-2 of the frame 7 respectively. By adjusting the nut 3-4 of the head clamping mechanism 3, pressing the pressing plate 3-3 against the frame 7 and tightening the nut 3-4 to fix it. By means of the screw 4-3 on the head centering mechanism 4, making the slot hole on the support seat 4-1 fit the frame 7 to ensure clamping the frame 7 on both left and right sides.

[0045] In addition, those skilled in the art can understand that although some embodiments described herein include certain features contained in other embodiments rather than other features, the combination of features of different embodiments also means being within the protection scope of the present utility model and forms different embodiments. For example, in the above embodiments, those skilled in the art can use them in a combined manner according to the known technical solutions and the technical problems to be solved by this application.

Claims

1. A full-welding fixture for a mining truck frame, characterized in that It includes a head tooling for fixing the head of the vehicle frame (7) and a tail tooling for fixing the tail of the vehicle frame (7); The head tooling includes a head tooling main body (1), a head support mechanism (2), a head clamping mechanism (3) and a head centering mechanism (4) respectively installed on the head tooling main body (1). The head tooling main body (1) includes a base (1-1), linear guide rails (1-2) symmetrically installed at both ends of the base (1-1), and sliders (1-7) slidably installed on the linear guide rails (1-2); the head support mechanism (2) includes a lower support plate (2-1) for supporting the lower end face of the vehicle frame, a front baffle plate (2-2) for pressing against the front end face of the vehicle frame, and a front guide bracket (2-3) for rough positioning of the left and right positions of the vehicle frame; the head clamping mechanism (3) includes a height positioning screw (3-1), an adjusting screw (3-2), a pressing plate (3-3) and a nut (3-4). The pressing plate (3-3) is respectively installed on the height positioning screw (3-1) and the adjusting screw (3-2), and the nut (3-4) is installed on the adjusting screw (3-2) for pressing the pressing plate (3-3) and clamping the vehicle frame (7); the head centering mechanism (4) includes a guide shaft support (4-6) installed on the base (1-1) and a support seat (4-1) connected to the slider (1-7). A centering adjustment structure is installed between the guide shaft support (4-6) and the support seat (4-1); The tail tooling includes a tail tooling main body (5) and a tail clamping mechanism (6) installed on the tail tooling main body (5). The tail clamping mechanism (6) includes a rear guide bracket (6-1) for rough positioning of the vehicle frame (7), a tail support cylinder (6-2) for supporting the tail of the vehicle frame, and a taper pin structure for supporting the force during the rotation of the vehicle frame.

2. The full-welding tooling fixture for a mining truck frame according to claim 1, characterized in that, Reinforcing plates (1-4) and reinforcing ribs (1-5) are installed on the base (1-1).

3. A full-welding fixture for a mining truck frame according to claim 1 or 2, characterized in that, A bellows cover (1-6) for protecting the linear guide rails (1-2) is installed on the base (1-1).

4. A full-welding fixture for a mining truck frame according to claim 1, characterized in that, A connecting plate (1-3) for installing the guide shaft support (4-6) and a limiting plate (1-8) for limiting the guide shaft support (4-6) are installed on the base (1-1).

5. A full-welding fixture for a mining truck frame according to claim 1, characterized in that, The centering adjustment structure includes a movable support (4-8) installed on the support seat (4-1), a screw (4-3) installed on the movable support (4-8) and the guide shaft support (4-6). A coupling (4-5) is installed on the guide shaft support (4-6), and a copper nut (4-7) is installed on the movable support (4-8).

6. A full-welding fixture for a mining truck frame according to claim 1, characterized in that The taper pin structure includes an oil cylinder support taper pin (6-3) and a turning seat taper pin (6-4).

7. A full-welding tooling fixture for a mining truck frame according to claim 1, characterized in that, Support seat reinforcing ribs (4-2) are installed on the support seat (4-1).

8. A full-welding fixture for a mining truck frame according to claim 1, characterized in that, Long circular holes for connecting the adjusting screw (3-2) are opened on the pressing plate (3-3).

9. A full-welding tooling fixture for a mining truck frame according to claim 1, characterized in that, An installation plate (4-4) is installed on the slider (1-7), and the support seat (4-1) is installed on the installation plate (4-4).

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