Welding wire feeding performance evaluation device

Abstract

The utility model discloses a welding wire feeding performance evaluation device, and belongs to the technical field of welding and manufacturing of railway vehicles. The device comprises a bottom plate and a center fixing rod fixedly connected to the bottom plate. A plurality of dimension lines radially extend from the upper surface of the bottom plate in the circumferential direction by taking the central fixing rod as the center; the winding shell is arranged outside the center fixing rod in a sleeving mode and comprises a plurality of sheet bodies, and the sheet bodies are sequentially in end-to-end contact to form a circular structure; the number of the ejector rods is matched with that of the sheet bodies, one end of each ejector rod is fixedly connected with the center fixing rod, and the other end of each ejector rod is fixedly connected with the winding shell, so that the sheet bodies are supported to displace through extension or contraction of the ejector rods, and the diameter of the winding shell is changed; the wire feeding performance testing device has the advantages of being simple in structure and convenient to use, and the purposes of rapidly testing the wire feeding performance of a used welding wire under different automatic welding postures and evaluating the wire feeding performance can be achieved through the variable diameter of the winding shell.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle welding manufacturing, in particular to a welding wire feeding performance evaluation device. Background Art

[0002] The manufacture of rail vehicle bodies and frame steel structures mainly adopts welding process technology, and uses a large number of automatic welding equipment to improve production efficiency and product quality.

[0003] At present, in automatic welding, the weld length is longer and the welding speed is faster, and the matching wire feeding speed is also higher than manual welding. Therefore, the wire feeding performance of the welding wire has a significant impact on the smoothness of automatic welding production and the quality after welding. The current welding wire standard only has qualitative requirements for the evaluation of welding wire feeding performance, and there is no actual detection method, detection standard and detection device. In the actual production process, problems such as poor formation of the same weld and multiple joints may occur due to poor wire feeding;

[0004] Therefore, there is an urgent need to develop a welding wire feeding performance evaluation device. Utility Model Content

[0005] The utility model aims to overcome the defects of the prior art and provide a welding wire feeding performance evaluation device which can ensure a smooth welding manufacturing process of a vehicle steel structure and reliable product quality.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a welding wire feeding performance evaluation device, comprising:

[0008] A bottom plate, and a central fixing rod fixedly connected to the bottom plate;

[0009] The upper surface of the bottom plate has a plurality of dimension lines extending radially in the circumferential direction with the central fixing rod as the center;

[0010] A winding shell sleeved on the outside of the central fixing rod comprises a plurality of sheets, wherein the plurality of sheets are sequentially contacted end to end to form a circular structure; and

[0011] A retractable top rod, the number of which matches the number of the sheets, one end of which is fixedly connected to the central fixed rod, and the other end of which is fixedly connected to the winding shell, so that the sheet body can be displaced by extending or contracting the top rod to change the diameter of the winding shell.

[0012] Furthermore, the ejector rod comprises an ejector head, a threaded sleeve and an ejector rod housing;

[0013] One end of the push rod housing is fixedly connected to the central fixing rod, and the other end is fixedly connected to the screw sleeve. The end of the screw sleeve is threadedly connected to the push head, and is fixedly connected to the sheet body through the push head.

[0014] Furthermore, the top end of the pin is connected to a screw via a screw hole, and a through hole through which the screw can pass is provided at a position of the sheet body corresponding to the screw hole.

[0015] Furthermore, the dimension line is punched on the bottom plate corresponding to the lower side of the push rod.

[0016] Furthermore, the sheet body and the push rods each include four, and two of the push rods form a group, and the two groups of push rods are arranged in a cross shape.

[0017] Furthermore, the cross section of the central fixing rod is a quadrilateral structure, and each side wall of the central fixing rod is fixedly connected to the top rod.

[0018] In the above technical solution, the utility model provides a welding wire feeding performance evaluation device, which has the following beneficial effects:

[0019] The utility model designs a welding wire feeding performance evaluation device, a bottom plate of which is welded with a central fixing rod, the central fixing rod is located above the dimension line of the bottom plate and is fixedly connected with a retractable top rod, a winding shell is sleeved on the outside of the central fixing rod, and the diameter change of the winding shell is achieved by extending the top rod. The device has a simple structure and is easy to use. Through the diameter change of the winding shell, the wire feeding performance test of the used welding wire in different automatic welding postures can be quickly realized and evaluated, which solves the problem that the welding wire meets the existing welding wire standard requirements but still has poor wire feeding in the current rail vehicle production and manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a top view of a welding wire feeding performance evaluation device disclosed in the utility model;

[0022] Figure 2 It is a front view of a welding wire feeding performance evaluation device disclosed in the utility model;

[0023] Figure 3 It is a front view of a push rod of a welding wire feeding performance evaluation device disclosed in the utility model;

[0024] Figure 4It is a schematic diagram of adjusting the push rod of a welding wire feeding performance evaluation device disclosed in the utility model;

[0025] Figure 5 The utility model discloses a schematic diagram of a process of measuring a push rod of a welding wire feeding performance evaluation device.

[0026] Description of reference numerals:

[0027] 1. Base plate; 2. Center fixing rod; 3. Push rod; 31. Push head; 32. Screw sleeve; 33. Push rod housing; 4. Dimension line; 5. Winding housing; 51. Sheet body; 6. Screw. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] See also Figure 1 , 2 As shown;

[0030] The utility model discloses a welding wire feeding performance evaluation device, comprising:

[0031] A bottom plate 1, a central fixing rod 2 fixed to the bottom plate 1, and a plurality of dimension lines 4 extending radially from the center of the central fixing rod 2 on the upper surface of the bottom plate 1; and

[0032] The winding shell 5 is sleeved outside the central fixed rod 2, and includes a plurality of sheets 51, and the plurality of sheets 51 are sequentially contacted end to end to form a circular structure; and

[0033] The push rod 3 is retractable, and the number of the push rods 3 matches the number of the sheet bodies 51. One end of the push rod 3 is fixedly connected to the central fixed rod 2, and the other end is fixedly connected to the winding shell 5, so that the support sheet body 51 can be displaced by extending or contracting the push rod 3 to change the diameter of the winding shell 5.

[0034] like Figure 1 As shown, in a specific embodiment, the bottom plate 1 is a quadrilateral steel plate supporting the entire device, and the central fixing rod 2 is vertically fixed to the center position of the bottom plate 1 by a welding process, which can prevent the movement of the winding shell 5 during the test. The upper surface of the bottom plate 1 has multiple dimension lines 4 extending radially in the circumferential direction with the central fixing rod 2 as the center, which can realize the rapid confirmation of the displacement of the sheet 51 after the top rod 3 is extended and retracted. The winding shell 5 includes a plurality of sheet bodies 51, and the plurality of sheet bodies 51 are contacted end to end in sequence to form a circular structure and are sleeved on the outside of the central fixing rod 2, wherein the number of the top rods 3 matches the number of the sheet bodies 51, one end of the top rod 3 is fixedly connected to the central fixing rod 2, and the other end is fixedly connected to the sheet body 51. When in use, the top rod 3 extends or contracts to support the displacement of the sheet body 51, thereby realizing the diameter change of the winding shell 5, see Figure 1As shown, the top rod 3 is in a retracted state, see Figure 4 As shown, the push rod 3 is in an extended state.

[0035] See also Figure 3 As shown:

[0036] Preferably, the ejector rod 3 includes an ejector head 31, a threaded sleeve 32 and an ejector rod housing 33;

[0037] One end of the push rod housing 33 is fixedly connected to the central fixing rod 2, and the other end is fixedly connected to a screw sleeve 32. The end of the screw sleeve 32 is threadedly connected to a plug 31. The top of the plug 31 is fixedly connected to the sheet body 51. A screw hole is provided at the top of the plug 31, and the screw 6 is connected to the plug 31 through the screw hole. The sheet body 51 has a through hole corresponding to the screw hole, through which the screw 6 can pass. When assembling, the screw 6 passes through the through hole of the sheet body 51 and is threadedly connected to the screw hole on the plug 31, so that the plug 31 is fixedly connected to the sheet body 51.

[0038] See also Figure 4 As shown, when in use, the push rod 3 can control the extension length of the entire push rod 3 by adjusting the screw-in depth of the push head 31, so as to obtain different diameters of the winding shell 5, and the welding wire feeding line is wound on the winding shell 5.

[0039] Preferably, the bottom plate 1 has a dimension line 4 punched below the corresponding top rod 3, which means that the dimension line 4 matches the number of the sheet bodies 51;

[0040] See also Figure 1 , 4 As shown:

[0041] Preferably, the sheet body 51 and the top rods 3 each include four, and two top rods 3 form a group, and the two groups of top rods 3 are arranged in a cross. Specifically, the projection cross section of the central fixed rod 2 on the bottom plate 1 is a quadrilateral structure, and the side walls of the central fixed rod 2 are fixedly connected with the top rods 3, so that the two groups of top rods 3 are arranged in a cross.

[0042] In the above technical solution, the utility model provides a welding wire feeding performance evaluation device, the working principle of which is:

[0043] See also Figure 5 As shown in the schematic diagram of the measurement implementation process, first, determine the diameter of the winding shell 5, adjust the mandrel 3 to reach the set diameter, then wind the wire feeding line onto the winding shell 5, start the electric welding machine to feed the wire, and compare the motor current of the wire feeding mechanism fed back by the electric welding machine with the process standard current to obtain the wire feeding performance under the diameter of the winding shell 5;

[0044] In the above technical solution, the utility model provides a welding wire feeding performance evaluation device, which has the following beneficial effects:

[0045] The utility model designs a welding wire feeding performance evaluation device, a base plate 1 is welded with a central fixing rod 2, the central fixing rod 2 is located above a dimension line 4 of the base plate 1 and is fixedly connected with a retractable push rod 3, a winding shell 5 is sleeved on the outside of the central fixing rod 2, and the diameter change of the winding shell 5 is achieved by stretching the push rod 3. The device has a simple structure and is easy to use. By changing the diameter of the winding shell 5, the wire feeding performance test of the welding wire in different automatic welding postures can be quickly realized and evaluated, which solves the problem that the welding wire meets the existing welding wire standard requirements but still has poor wire feeding in the current rail vehicle production and manufacturing.

[0046] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A welding wire feeding performance evaluation device, characterized in that: include: A base plate (1), and a central fixing rod (2) fixedly connected to the base plate (1); The upper surface of the bottom plate (1) has a plurality of dimension lines (4) extending radially in the circumferential direction with the central fixing rod (2) as the center; and further includes A winding shell (5) sleeved on the outside of the central fixed rod (2), comprising a plurality of sheets (51), wherein the plurality of sheets (51) are sequentially contacted end to end to form a circular structure; as well as A telescopic push rod (3), the number of which matches the number of the sheet bodies (51), one end of which is fixedly connected to the central fixed rod (2), and the other end of which is fixedly connected to the winding shell (5), so that the push rod (3) can be extended or contracted to support the displacement of the sheet body (51), so that the winding shell (5) can change its diameter.

2. A welding wire feeding performance evaluation device according to claim 1, It is characterized by: The push rod (3) comprises a push head (31), a threaded sleeve (32) and a push rod housing (33); One end of the push rod housing (33) is fixedly connected to the central fixed rod (2), and the other end is fixedly connected to the screw sleeve (32). The end of the screw sleeve (32) is threadedly connected to the push head (31) and is fixedly connected to the sheet body (51) via the push head (31).

3. A welding wire feeding performance evaluation device according to claim 2, It is characterized by: The top end of the top head (31) is connected to the screw (6) via a screw hole, and the sheet body (51) is provided with a through hole corresponding to the position of the screw hole, through which the screw (6) can pass.

4. A welding wire feeding performance evaluation device according to claim 1 or 2, It is characterized by: The dimension line (4) is punched on the bottom plate (1) corresponding to the lower side of the top rod (3).

5. A welding wire feeding performance evaluation device according to claim 1, It is characterized by: The sheet body (51) and the push rods (3) each include four pieces, two push rods (3) form a group, and the two groups of push rods (3) are arranged in a cross shape.

6. A welding wire feeding performance evaluation device according to claim 5, characterized in that ； The cross section of the central fixing rod (2) is a quadrilateral structure, and each side wall of the central fixing rod (2) is fixedly connected to the top rod (3).

Images