CN207479939U - A kind of exothermic welding mould clamping device - Google Patents

Abstract

The utility model discloses an exothermic welding mold clamping device, which comprises a movable fixed shaft, an upper mold and a lower mold; The fixed mounts are respectively used to fix the upper die and the lower die, and the fixed shafts above the two fixed mounts are also sleeved with cover frames that slide with the fixed shafts. The two fixed mounts and the cover mounts are Both are fixedly connected with the fixed shaft by bolts, and at least two horizontal insertion pins are provided on the two fixed frames, and at least two horizontal insertion pins are provided on the upper mold and the lower mold. The insertion hole corresponding to the joint pin, the upper mold is spliced by two mutually matched components, and the insertion hole of the upper mold runs through the two mutually matched components. The clamping operation of the exothermic welding mold of the utility model is convenient, and only one person is required to complete the operation during the process, thereby saving labor costs.

Description

A clamping device for exothermic welding mold

technical field

The utility model relates to the technical field of exothermic welding mold clamping equipment, in particular to an exothermic welding mold clamping device.

Background technique

Exothermic welding is a simple, high-efficiency, high-quality metal connection process. It uses the chemical reaction heat of metal compounds as a heat source, and through the overheated molten metal, directly or indirectly heats the work to form a certain amount in the cavity of a special mold. Fusion welded joints in shape, size, and engineering requirements. At present, exothermic welding has generally replaced the previous mechanical connection method between metals.

Currently known mold clamps for exothermic welding are used in actual use, especially when it is necessary to fasten the mold clamps after being put into the workpiece, the operator must use both hands together to achieve this, and this often results in The welding workpiece is displaced, so that the upper mold and the lower mold of the mold cannot be clamped, or although the mold is clamped, but because the position of the workpiece does not correspond, the mold needs to be released to move the workpiece to the specified position and then re-clamped, so the general welding operation One person operates the fixture, and the other person supports the workpiece to fix it, so that too much labor is wasted when the workpiece is fixed for exothermic welding. Therefore, it is necessary to do further research and improvement on the structure of the aforementioned exothermic welding mold clamp.

Utility model content

One of the purposes of the present utility model is to provide an exothermic welding mold clamping device for the above-mentioned deficiencies, in order to solve the inconvenient operation of the exothermic welding mold clamp in the prior art, two people are required to work at the same time during use, and there is too much waste Manual and other technical issues.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

An exothermic welding mold clamping device, comprising a movable fixed shaft, an upper mold, and a lower mold; two fixed frames sliding with the fixed shaft are sleeved on the fixed shaft, and the two fixed frames are respectively used for Fix the upper mold and the lower mold, and the fixed shafts above the two fixed frames are also sleeved with cover frames that slide with the fixed shafts, and the two fixed frames and the cover frames are all connected by bolts and the The fixed shafts are fixedly connected, and the two fixed frames are provided with at least two horizontal insertion pins, and the upper mold and the lower mold are provided with corresponding at least two horizontal insertion pins. The insertion hole, the upper mold is spliced by two mutually matched components, and the insertion hole of the upper mold runs through the two mutually matched components.

Further, a cover plate is fixedly connected to the cover frame, and the cover plate is used to cover the upper surface of the upper mold.

Further, the material of the splicing components forming the upper mold and the lower mold are both carbonaceous refractory materials.

Further, sliding handles are provided at the sliding connections between the two fixing brackets and the fixing shaft respectively.

Further, one of the at least two transverse socket pins is provided with a corner connecting piece for fixing with the upper mold or the lower mold, and the other of the at least two transverse socket pins is inserted A washer with the same thickness as the cross-section of the corner connection piece is provided on the connection pin.

Further, one end of the corner connecting piece and the gasket are both sleeved on the insertion pin, the other end of the corner connecting piece is provided with a plurality of pin holes, and the two components of the upper mold, the lower The molds are all provided with fixing holes corresponding to the positions of the pin holes.

Compared with the prior art, the beneficial effects of the utility model are:

1. The upper mold or the lower mold is not only inserted into the socket hole and fixed by the fixing frame through the insertion pin, but the upper mold or the lower mold is also fixed through the pin hole, the fixing hole and the corner connecting piece through the bolt, which further increases the upper mold or the lower mold. The stability of the mold on the fixed frame.

2. The cover plate covers the reaction chamber. When the reaction in the reaction chamber is violent, the ejection of the material in the reaction chamber is avoided, thereby avoiding the occurrence of safety accidents during the welding process.

3. The exothermic welding mold is produced with carbonaceous refractory materials, the production cost is low, and the heat transfer coefficient of carbonaceous refractory materials is large, which is conducive to the firm connection of the interface of the welded workpiece.

4. The clamping operation of the exothermic welding mold is convenient, and only one person can complete the operation during the process, saving labor costs.

Description of drawings

Fig. 1 is a structural diagram of the utility model.

Fig. 2 is a structural diagram of the exothermic welding mold of the present invention.

Fig. 3 is a split structure diagram of the exothermic welding mold of the present invention

In the figure, 1-fixed shaft, 2-fixed frame, 3-bolt, 4-cover frame, 5-plug pin, 6-corner connecting piece, 7-gasket, 8-sliding handle, 9-upper die, 10-cover plate, 11-lower mold, 12-socket hole, 13-component, 14-fixing hole.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1:

An exothermic welding mold clamping device, comprising a movable fixed shaft (1), an upper die (9), and a lower die (11); the fixed shaft (1) is sleeved with two and the fixed shaft (1 ) sliding fixing frame (2), the two fixing frames (2) are respectively used to fix the upper mold (9) and the lower mold (11), and the fixing shafts above the two fixing frames (2) ( 1) is also sleeved with a cover frame (4) that slides with the fixed shaft (1), and the two fixed frames (2) and the cover frame (4) are connected to the fixed shaft (1) by bolts. ) are fixedly connected, at least two horizontal insertion pins (5) are provided on the two fixed frames (2), and at least two The insertion hole (12) corresponding to the insertion pin (5) in the horizontal direction, the upper mold (9) is spliced by two components (13) that match each other, the insertion of the upper mold (9) The connection hole (12) runs through the two components (13) that fit together. In order to reduce the weight of the fixed shaft (1), the fixed shaft (1) can directly adopt a steel pipe, and the upper die (9) or the lower die (11) are inserted into the upper die (9) or the lower die ( 11) The upper mold (9) or the lower mold (11) is fixed in the insertion hole (12) provided on the top and fixed with the fixed frame (2), and then fixed stably after being fixed by the insertion pin (5).

Example 2:

On the basis of Embodiment 1, a cover plate (10) is fixedly connected to the cover frame (4), and the cover plate (10) is used to cover the upper surface of the upper mold (9). There is a reaction chamber for welding reaction on the upper surface of the upper mold (9). When the cover plate (10) is connected to the upper surface of the upper mold (9), the cover plate (10) covers the reaction chamber. When the reaction chamber reacts When it is violent, it avoids the ejection of the substance in the reaction chamber, thereby avoiding the safety accident in the welding process.

Example 3:

On the basis of Examples 1-2, the components ( 13 ) and lower mold ( 11 ) that are spliced to form the upper mold ( 9 ) are made of carbonaceous refractory materials. The heat transfer coefficient of carbonaceous refractories is large, which is conducive to the firm connection of the interface of the welded workpiece, and when the exothermic welding mold is produced with carbonaceous refractories, the production cost is low, and usually constitutes the upper mold of the exothermic welding mold ( 9) The component (13) and the lower mold (11) are both pressure-formed in different molds, which can be mass-produced.

Example 4:

On the basis of embodiments 1-3, sliding handles (8) are provided at the sliding connections between the two fixing frames (2) and the fixing shaft (1). Such structural arrangement facilitates the operation of the fixed frame (2) to slide up and down on the fixed shaft (1).

Example 5:

On the basis of Embodiments 1-4, one of the at least two horizontal insertion pins (5) is provided with a fixed The corner connection piece (6), and the other one of the at least two transverse insertion pins (5) (5) is provided with a gasket ( 7). The corner connecting piece (6) has a certain cross-sectional thickness, and a gasket (7) with the same thickness is set on the other plug pin (5), so as to ensure that the upper mold (9) or the lower mold (11) can be aligned with the fixed frame ( 2) Firm fixation.

Embodiment 6:

On the basis of Examples 1-5, one end of the corner connecting piece (6) and the gasket (7) are both socketed on the insertion pin (5), and the other end of the corner connecting piece (6) One end is provided with a plurality of pin holes, and the two components (13) of the upper mold (9) and the lower mold (11) are both provided with fixing holes (14) corresponding to the positions of the pin holes. The upper mold (9) or the lower mold (11) is not only inserted into the insertion hole (12) by the plug pin (5) and fixed by the fixing bracket (2), but also the upper mold (9) or the lower mold (11) is also fixed by the plug (5). 3) Fix through the pin hole, the fixing hole (14) and the corner connecting piece (6), further increasing the stability of fixing the upper mold (9) or the lower mold (11) on the fixing frame (2).

The working process of the present utility model is:

Fix the upper mold (9) and the lower mold (11) of the exothermic welding mold respectively on the upper and lower fixing frames (2) on the fixed shaft (1), and then place the welding workpiece on the lower mold (11), Hold the welding workpiece with your hand, and the other hand slides the fixed frame (2) with the upper mold (9) to drive the upper mold (9) to move downward, and choose the correct position to drive the upper mold (9) and the lower mold ( 11) Close and fix the workpiece. At this time, the welding workpiece is fixed. The hand that originally held the workpiece can be released. After loosening, slide the fixed frame (2) on the fixed shaft (1) downward, and pass the bolt Fix the fixed frame (2) at a certain position on the fixed shaft (1), at this time the upper mold (9) and the lower mold (11) are clamped by the mold clamp, and the next welding work can be carried out, exothermic welding mold The clamping operation is convenient, and only one person can complete the operation in the process, saving labor costs.

Although the invention has been described herein with reference to a number of illustrative embodiments of the invention, it should be understood that many other modifications and implementations can be devised by those skilled in the art which will fall within the scope of this application. within the scope and spirit of the principles disclosed. More specifically, within the scope of the disclosure, drawings and claims of the present application, various modifications and improvements can be made to the components and/or layout of the subject combination layout. In addition to variations and modifications to the component parts and/or layout, other uses will be apparent to those skilled in the art.

Claims (6)

1. An exothermic welding mold clamping device, characterized in that: it includes a movable fixed shaft (1), an upper die (9), and a lower die (11); the fixed shaft (1) is sleeved with two and The fixed shaft (1) slides the fixed frame (2), the two fixed frames (2) are respectively used to fix the upper mold (9) and the lower mold (11), and the two fixed frames (2 ) above the fixed shaft (1) is also sleeved with a cover frame (4) that slides with the fixed shaft (1), and the two fixed frames (2) and the cover frame (4) are both connected by bolts and The fixed shaft (1) is fixedly connected, and the two fixed frames (2) are provided with at least two transverse insertion pins (5), and the upper mold (9) and the lower mold (11) are both There are socket holes (12) corresponding to at least two horizontal socket pins (5), and the upper mold (9) is spliced by two components (13) that match each other. The insertion hole (12) of the mold (9) runs through the two components (13) that match each other. 2. An exothermic welding mold clamping device according to claim 1, characterized in that: a cover plate (10) is fixedly connected to the cover frame (4), and the cover plate (10) is used for Connect with the upper surface of the upper mold (9). 3. An exothermic welding mold clamping device according to claim 1, characterized in that: the components (13) and lower mold (11) formed by splicing the upper mold (9) are made of carbon refractory Material. 4. An exothermic welding mold clamping device according to claim 1, characterized in that: sliding connections between the two fixed frames (2) and the fixed shaft (1) are provided with sliding handle (8). 5. An exothermic welding mold clamping device according to claim 1, characterized in that: one of the at least two transverse insertion pins (5) is provided with a The upper mold (9) or the lower mold (11) is fixed to the corner connection piece (6), and the other one (5) of the at least two horizontal insertion pins (5) is provided with a corner connection The cross-sectional thickness of the sheet (6) is the same as that of the gasket (7). 6. The exothermic welding mold clamping device according to claim 5, characterized in that: one end of the corner connecting piece (6) and the gasket (7) are both socketed on the socket pin (5) ), the other end of the corner connecting piece (6) is provided with a plurality of pin holes, and the two components (13) and the lower die (11) of the upper die (9) are provided with the same Fixing holes (14) corresponding to the positions of the pin holes.