A combined fixture for welding a nozzle seat and a nozzle head

Abstract

A combined clamp for welding a nozzle seat and a nozzle head belongs to the technical field of parts welding. The bottom plate is fixed to the positioning block, support plate one and support plate two. The positioning block is provided with a cylindrical pin, a slider and a pressure plate. Support plate one and support plate two are both inserted with a push pin and screwed with an adjusting screw. The adjusting screw is arranged at the outer end of the push pin. The method is as follows: the nozzle seat is placed on the bottom plate and installed on the positioning block through a cylindrical pin for preliminary positioning; the slider is pushed to fix the nozzle seat angularly; the nozzle seat is pressed by the pressure plate; the nozzle head is installed on the nozzle seat; the nozzle head is pushed to be pressed on the nozzle seat by the adjusting screw; and the nozzle seat and the nozzle head are welded. The present invention provides precise and stable positioning, so that the parts can be processed stably and efficiently, ensuring the final welding quality, improving the processing efficiency, reducing the processing difficulty, and improving the processing qualification rate of the product.

Description

Technical Field

[0001] The invention relates to a combined clamp for welding a nozzle seat and a nozzle head, belonging to the technical field of parts welding. Background Art

[0002] The traditional welding positioning method between the nozzle seat and the nozzle head is mainly visual or adhesive positioning. Although it can ensure the relative position relationship of the parts to a certain extent, it has the following disadvantages:

[0003] 1. Visual positioning is greatly affected by human factors and its accuracy is difficult to guarantee;

[0004] 2. During the glue positioning, since the glue liquid is difficult to completely clean after welding, it not only affects the appearance quality of the product, but may also have an adverse effect on the performance of the product, thus leading to problems of low efficiency and high scrap rate, which not only increases the production cost of the enterprise, but may also cause delays in production progress. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention provides a combined clamp for welding a nozzle seat and a nozzle head.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a combined fixture for welding a nozzle seat and a nozzle head, comprising a base plate, a positioning block, a cylindrical pin, a slider, a support plate one, a push pin, an adjusting screw, a support plate two and a pressure plate; the base plate is fixedly connected to the positioning block, the support plate one and the support plate two, a cylindrical pin, a slider and a pressure plate are provided at the upper end of the positioning block, a push pin is inserted at the upper end of the support plate one and the upper end of the support plate two, and an adjusting screw is threadedly screwed at the upper end of the support plate one and the upper end of the support plate two, and each of the adjusting screws is respectively arranged at the outer end of the corresponding push pin.

[0007] The sliding block and the pressing plate are both provided with waist-shaped holes, each of the waist-shaped holes is provided with a mounting screw, and each of the mounting screws is screwed to the positioning block thread.

[0008] The upper end of the second support plate is bent inwardly.

[0009] A method for using a combined fixture for welding a nozzle seat and a nozzle head of the present invention comprises the following steps:

[0010] S1: Fix the welding assembly fixture on the workbench;

[0011] S2: Place the nozzle holder on the base plate and install it on the positioning block by means of a cylindrical pin;

[0012] S3: Push the slider to make it fit with the corresponding position of the nozzle holder and then fix the nozzle holder in an angular direction;

[0013] S4: Press the nozzle seat onto the positioning block through the pressing plate;

[0014] S5: Install the two nozzle heads on the corresponding positions of the nozzle holder respectively;

[0015] S6: Push the corresponding ejector pins through the corresponding adjusting screws, and then push the corresponding nozzle heads to press the nozzle heads tightly to the corresponding positions of the nozzle seats;

[0016] S7: Weld the nozzle seat and the two nozzle heads.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention installs the nozzle seat on the base plate, fixes its position by means of a positioning block and a slider, and then presses it against the base plate by means of a pressing plate; after the nozzle head is pre-installed at the corresponding position of the nozzle seat, a push pin is used to ensure the correct positional relationship between it and the nozzle head, thereby providing precise and stable positioning, enabling parts to be processed stably and efficiently, ensuring the final welding quality, improving processing efficiency, reducing processing difficulty, and improving the processing qualification rate of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 yes Figure 1 AA section view;

[0021] Figure 3 yes Figure 1 BB cross-sectional view;

[0022] Figure 4 yes Figure 1 CC cross-sectional view. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] A combined clamp for welding a nozzle seat and a nozzle head, comprising a base plate 1, a positioning block 4, a cylindrical pin 5, a slider 6, a support plate 1 8, a top pin 9, an adjusting screw 10, a support plate 2 11 and a pressing plate 13; the base plate 1 is fixedly connected with the positioning block 4, the support plate 1 8 and the support plate 2 11 by corresponding screws and positioning pins, the upper end of the positioning block 4 is provided with a cylindrical pin 5, a slider 6 and a pressing plate 13, and the cylindrical pin 5 and the slider 6 form a main positioning unit; the pressing plate 13 is used to clamp the nozzle seat. The upper end of the support plate 1 8 and the upper end of the support plate 2 11 are both plugged with a top pin 9, and the upper end of the support plate 1 8 and the upper end of the support plate 2 11 are both threaded with an adjusting screw 10, and each of the adjusting screws 10 is respectively arranged at the outer end of the corresponding top pin 9. The top pin 9, the adjusting screw 10, the support plate 1 8 and the support plate 2 11 form a nozzle head clamping device.

[0025] The slider 6 and the pressure plate 13 are both provided with waist-shaped holes penetrating through their respective thicknesses. A mounting screw 7 is provided in each waist-shaped hole, and each mounting screw 7 is threadedly screwed to the positioning block 4 .

[0026] The upper end of the second support plate 11 is bent inward.

[0027] A method for using a combined fixture for welding a nozzle seat and a nozzle head of the present invention comprises the following steps:

[0028] S1: Fixing the welding assembly fixture of the present invention on a workbench;

[0029] S2: Place the nozzle holder 17 on the base plate 1 and preliminarily position and install it on the positioning block 4 through the cylindrical pin 5;

[0030] S3: Pushing the slider 6 to make it fit into the corresponding position of the nozzle seat 17 and then angularly fixing the nozzle seat 17, thereby restricting all six degrees of freedom of the nozzle seat 17;

[0031] S4: Press the nozzle seat 17 onto the positioning block 4 through the pressing plate 13;

[0032] S5: Install the two nozzle heads 18 at corresponding positions of the nozzle holder 17 respectively;

[0033] S6: Push the corresponding ejector pin 9 through the corresponding adjusting screw 10, and then push the corresponding nozzle head 18, so that the nozzle head 18 is stably pressed on the corresponding position of the nozzle seat 17; ensure the correct and stable assembly relationship between the three parts of the nozzle seat 17 and the two nozzle heads 18, so as to ensure the final welding quality.

[0034] S7: Weld the nozzle holder 17 and the two nozzle heads 18.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A combined fixture for welding a nozzle seat and a nozzle head, characterized in that: The invention comprises a bottom plate (1), a positioning block (4), a cylindrical pin (5), a slider (6), a support plate 1 (8), a top pin (9), an adjusting screw (10), a support plate 2 (11) and a pressing plate (13); the bottom plate (1) is fixedly connected to the positioning block (4), the support plate 1 (8) and the support plate 2 (11); the upper end of the positioning block (4) is provided with a cylindrical pin (5), a slider (6) and a pressing plate (13); the upper end of the support plate 1 (8) and the upper end of the support plate 2 (11) are both plugged with a top pin (9); the upper end of the support plate 1 (8) and the upper end of the support plate 2 (11) are both threadedly screwed with an adjusting screw (10); each of the adjusting screws (10) is respectively arranged at the outer end of the corresponding top pin (9); the method for using the combined clamp for welding the nozzle seat and the nozzle head comprises the following steps: S1: Fix the welding assembly fixture on the workbench; S2: placing the nozzle holder (17) on the base plate (1) and preliminarily positioning and installing it on the positioning block (4) through the cylindrical pin (5); S3: Pushing the slider (6) to make it fit into the corresponding position of the nozzle seat (17) and then angularly fixing the nozzle seat (17); S4: Pressing the nozzle seat (17) onto the positioning block (4) by means of the pressing plate (13); S5: installing the two nozzle heads (18) at corresponding positions of the nozzle holder (17); S6: Pushing the corresponding ejector pin (9) through the corresponding adjusting screw (10), and then pushing the corresponding nozzle head (18), so as to press the nozzle head (18) to the corresponding position of the nozzle seat (17); S7: Welding the nozzle seat (17) and the two nozzle heads (18).

2. The combined fixture for welding a nozzle seat and a nozzle head according to claim 1, characterized in that: The sliding block (6) and the pressing plate (13) are both provided with waist-shaped holes, each waist-shaped hole is provided with a mounting screw (7), and each mounting screw (7) is threadedly connected to the positioning block (4).

3. The combined fixture for welding a nozzle seat and a nozzle head according to claim 2, characterized in that: The upper end of the second support plate (11) is bent inwards.

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