Welding bolt stroke detection device

Abstract

The utility model discloses a welding bolt stroke detection device, which particularly relates to the technical field of welding, and comprises a central column, the top of the central column is provided with an accommodating pipe, the top of the accommodating pipe is provided with an air cylinder, the bottom of the air cylinder is provided with a stroke sensor, the bottom of the central column is provided with a mounting pipe, and the outer wall of the mounting pipe is provided with a plurality of clamping assemblies; a center rod penetrates through the center of the interior of the containing pipe, an extrusion piece is fixedly arranged at the top of the center rod, and one end of the center rod penetrates through the center column and communicates with the interior of the mounting pipe. An ejector rod is slidably connected to the interior of the air cylinder in a penetrating mode, a moving piece is fixedly connected to the top of the ejector rod, and communicating pipes are installed at the top and the bottom of the side wall of the air cylinder; the clamping assembly comprises a rotating plate, and one end of the rotating plate is rotationally connected with an extrusion block. The device has the advantages that the welding bolts can be conveniently detected, welding errors are avoided, and the welding bolts of different sizes can be conveniently clamped and fixed.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and specifically to a welding bolt stroke detection device. Background Technology

[0002] During spot welding, the temperature of the electrodes and electrode heads in the electrode holder assembly is extremely high. Therefore, it is necessary to cool the electrodes and electrode heads simultaneously during spot welding. Cooling water forms a smooth up-and-down water circulation inside the electrode holder assembly. The water flow rate is fast, which improves the heat exchange efficiency, provides good cooling for the electrodes and electrode heads, and extends their service life.

[0003] During installation and use, different bolts are required for welding different locations. However, in actual use, the differences between different bolts are small, and errors often occur during manual operation. Therefore, a welding bolt stroke detection device with an electrode holder is needed to detect bolts of different lengths and avoid length errors. At the same time, since different bolts have different sizes, one end of the electrode holder needs to be easily adjustable to accommodate welding bolts of different sizes. Traditional extrusion fixing structures usually use bolts to extrude and fix them on one side, which can easily cause the welding bolts to be misaligned during fixing, affecting the welding process. Utility Model Content

[0004] The purpose of this invention is to provide a welding bolt stroke detection device, which solves the problems of existing devices that lack the ability to detect different bolts, are prone to placement and welding errors, and require the ability to adjust and center welding bolts of different sizes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding bolt stroke detection device, comprising a central column, a receiving tube provided at the top of the central column, a cylinder provided at the top of the receiving tube, a stroke sensor installed at the bottom of the cylinder, an installation tube installed at the bottom of the central column, and multiple clamping components installed on the outer wall of the installation tube.

[0006] A central rod is provided through the center of the inner cavity of the receiving tube. A compression piece is fixedly provided at the top of the central rod. One end of the central rod passes through the central column and communicates with the interior of the mounting tube.

[0007] A push rod is slidably connected through the inside of the cylinder, and a movable piece is fixedly connected to the top of the push rod. A connecting pipe is installed at the top and bottom of the cylinder sidewall.

[0008] The clamping assembly includes a rotating plate, one end of which is rotatably connected to a pressing block, and the outer wall of the mounting tube near the rotating plate is threadedly connected to a pressing ring.

[0009] Preferably, the central column is provided with a cooling pipe inside, and a conveying pipe is installed on both sides of the top of the cooling pipe, with the two conveying pipes respectively connected to the two ends of the cooling pipe.

[0010] Preferably, the top end of the mounting tube is fixedly connected to the bottom end of the central column, a welding bolt is installed inside the bottom end of the mounting tube, and a rectangular hole is opened on the side of the bottom end of the mounting tube near the extrusion block, and the rectangular hole is slidably connected to the extrusion block.

[0011] Preferably, a rotating torsion spring is installed at the center of the side wall of the rotating plate, and the center of the clamping assembly is rotatably connected to the outer wall of the mounting tube through the rotating torsion spring. The end of the outer wall of the extrusion ring near the clamping assembly is inclined towards the center, and one end of the rotating plate is in contact with the outer wall of the extrusion ring.

[0012] Preferably, the inside of the cylinder is slidably connected to the movable plate, the bottom end of the push rod passes through the inside of the stroke sensor and communicates with the inside of the receiving tube, and the two connecting tubes are respectively connected to the air pump.

[0013] Preferably, the extrusion plate is slidably connected to the inside of the receiving tube, and a compression spring is installed at the bottom of the extrusion plate, with the bottom of the compression spring fixedly connected to the bottom end of the receiving tube.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. Gas propels the moving plate to the bottom, which in turn pushes the top rod to the bottom. The bottom of the top rod then presses against the extrusion plate, compressing the extrusion spring. This causes the center rod to move to the bottom and press against the bolt. A stroke sensor can be used to easily detect the distance the top rod has moved, thus determining the length of the bolt installed at the bottom and checking if it meets the standard requirements. This effectively prevents operators from welding bolts of the wrong size, eliminating the need for manual inspection and significantly improving efficiency. After processing, the gas pressure inside the cylinder can be easily released, and the extrusion plate moves in the opposite direction under the reverse action of the extrusion spring, causing the center rod to move in the opposite direction as well. This makes releasing the bolt from the weld even more convenient.

[0016] 2. The extrusion ring rotates towards one end of the clamping assembly, causing the extrusion ring to press the rotating plate away from the mounting tube. This causes the rotating plate to rotate around the torsion spring, and simultaneously, one end of the rotating plate drives the extrusion block to press and move into the mounting tube. The extrusion block then moves along the rectangular hole, which can easily press and fix the outer wall of the welding bolt. Since the extrusion block moves along the rectangular hole, it can easily press and clamp welding bolts of different diameters inside the mounting tube. Furthermore, since multiple extrusion blocks move simultaneously, it can effectively keep the welding bolt in the center during extrusion, avoiding skewing. The device can easily accommodate welding bolts of different sizes and dimensions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is an overall structural diagram of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the receiving tube of this utility model;

[0021] Figure 4 This is a schematic diagram of the external connection structure of the central rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping component structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Central column; 101. Cooling pipe; 102. Conveying pipe; 2. Receiving pipe; 201. Central rod; 202. Extrusion plate; 203. Extrusion spring; 3. Cylinder; 301. Push rod; 302. Moving plate; 303. Connecting pipe; 4. Stroke sensor; 5. Mounting pipe; 501. Extrusion ring; 502. Rectangular hole; 6. Clamping assembly; 601. Rotating plate; 602. Extrusion block; 603. Rotating torsion spring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The welding bolt stroke detection device shown includes a central column 1, a receiving tube 2 at the top of the central column 1, a cylinder 3 at the top of the receiving tube 2, a stroke sensor 4 at the bottom of the cylinder 3, an installation tube 5 at the bottom of the central column 1, and multiple clamping components 6 on the outer wall of the installation tube 5; a central rod 201 is inserted through the center of the receiving tube 2, a pressing plate 202 is fixedly installed at the top of the central rod 201, and one end of the central rod 201 passes through the central column 1 and communicates with the interior of the installation tube 5; a top rod 301 is slidably connected through the interior of the cylinder 3, a moving plate 302 is fixedly connected to the top of the top rod 301, and connecting pipes 303 are installed at the top and bottom of the side wall of the cylinder 3; the clamping components 6 include a rotating plate 601, a pressing block 602 is rotatably connected to one end of the rotating plate 601, and a pressing ring 501 is threadedly connected to the end of the outer wall of the installation tube 5 near the rotating plate 601.

[0027] During welding, the corresponding sized welding bolt workpiece can be inserted into the installation tube 5 and clamped and fixed by the extrusion block 602. The air pump can be easily started, and the air from the air pump is output to the top of the cylinder 3 through the connecting pipe 303. The air then pushes the moving plate 302 to the bottom, which pushes the top rod 301 to the bottom. The bottom of the top rod 301 then presses the extrusion plate 202, compressing the extrusion spring 203. The center rod 201 moves to the bottom and presses against the welding bolt. The travel sensor 4 can be used to easily detect the distance the top rod 301 moves. The extrusion ring 501 can press the rotating plate 601 to tilt away from the installation tube 5, causing the rotating plate 601 to rotate around the rotating torsion spring 603. At the same time, one end of the rotating plate 601 drives the extrusion block 602 to press and move into the installation tube 5. The extrusion block 602 moves along the rectangular hole 502, which facilitates the extrusion block 602 to press and fix the outer wall of the welding bolt.

[0028] like Figure 3 , Figure 4 As shown, a cooling pipe 101 is installed inside the central column 1. A delivery pipe 102 is installed on both sides of the top of the cooling pipe 101. The two delivery pipes 102 are connected to both ends of the cooling pipe 101, and coolant can be injected into the interior through the cooling pipe, thereby cooling the central column 1 and thus cooling the central rod 201.

[0029] like Figure 4 , Figure 5As shown, the top end of the mounting tube 5 is fixedly connected to the bottom end of the central column 1. A welding bolt is installed inside the bottom end of the mounting tube 5. A rectangular hole 502 is opened on the side of the bottom end of the mounting tube 5 near the extrusion block 602. The rectangular hole 502 is slidably connected to the extrusion block 602. A rotating torsion spring 603 is installed at the center of the side wall of the rotating plate 601. The center of the clamping assembly 6 is rotatably connected to the outer wall of the mounting tube 5 through the rotating torsion spring 603. The end of the outer wall of the extrusion ring 501 near the clamping assembly 6 is inclined towards the center. One end of the rotating plate 601 is in contact with the outer wall of the extrusion ring 501. The extrusion ring 501 rotates towards the clamping assembly 6, thereby allowing the extrusion ring 501 to extrude the rotating plate 601 to tilt away from the mounting tube 5. This causes the rotating plate 601 to rotate around the rotating torsion spring 603. At the same time, one end of the rotating plate 601 drives the extrusion block 602 to move into the mounting tube 5. The extrusion block 602 moves along the rectangular hole 502, which facilitates the extrusion block 602 to extrude and fix the outer wall of the welding bolt. Since the extrusion block 602 moves along the rectangular hole 502, it is convenient to extrude and clamp welding bolts of different diameters inside the mounting tube 5 according to the different distances the extrusion block 602 moves.

[0030] like Figure 1 , Figure 3 As shown, the cylinder 3 is slidably connected to the moving plate 302. The bottom end of the push rod 301 passes through the interior of the stroke sensor 4 and communicates with the interior of the receiving tube 2. The two connecting tubes 303 are respectively connected to the air pump. The extrusion plate 202 is slidably connected to the interior of the receiving tube 2. A compression spring 203 is installed at the bottom of the extrusion plate 202. The bottom of the compression spring 203 is fixedly connected to the bottom end of the receiving tube 2. The gas pushes the moving plate 302 to move to the bottom. The moving plate 302 pushes the push rod 301 to move to the bottom end. Then the bottom end of the push rod 301 presses the extrusion plate 202, so that the compression spring 203 is compressed. The center rod 201 moves to the bottom and thus comes into contact with and presses against the welding bolt. Thus, the stroke sensor 4 can be used to conveniently detect the distance the push rod 301 moves, thereby determining the length of the welding bolt installed at the bottom.

[0031] During welding operations, the corresponding sized welding bolt workpiece can be inserted into the installation tube 5 and clamped and fixed by the extrusion block 602. Gas from the air pump can be easily output to the top of the cylinder 3 through the connecting pipe 303. This gas then pushes the moving plate 302 to the bottom, which in turn pushes the top rod 301 to the bottom. The bottom of the top rod 301 then presses against the extrusion plate 202, compressing the extrusion spring 203. The center rod 201 moves to the bottom, thus pressing against the welding bolt. The stroke sensor 4 can easily detect the distance the top rod 301 has moved, determining the length of the welding bolt installed at the bottom and checking if it meets standard requirements. This effectively prevents operators from welding bolts of incorrect size, eliminating the need for manual inspection and significantly improving efficiency. After processing, the internal air pressure of the cylinder 3 can be easily released. Under the reverse action of the extrusion spring 203, the extrusion plate 202 moves in the opposite direction, causing the center rod 201 to move in the opposite direction, releasing the contact with the welding bolt, making operation even more convenient.

[0032] Simultaneously, when installing the welding bolts, the welding bolts are inserted into the mounting tube 5, causing the extrusion ring 501 to rotate towards one end of the clamping assembly 6. This allows the extrusion ring 501 to press the rotating plate 601 to tilt away from the mounting tube 5, causing the rotating plate 601 to rotate around the rotating torsion spring 603. At the same time, one end of the rotating plate 601 drives the extrusion block 602 to move into the mounting tube 5, thus pressing and moving the extrusion block 602 along the rectangular hole 502. This facilitates the extrusion block 602 to press and fix the outer wall of the welding bolt. Since the extrusion block 602 moves along the rectangular hole 502, it is convenient to press and clamp welding bolts of different diameters inside the mounting tube 5 according to the different distances the extrusion block 602 moves. Furthermore, the simultaneous movement of multiple extrusion blocks 602 effectively keeps the welding bolts centered inside the mounting tube 5 during extrusion, preventing skewing. The device can conveniently fix welding bolts of different sizes.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, 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. Welded bolt stroke detection device, comprising a central column (1), characterized in that: The top of the central column (1) is provided with a receiving tube (2), the top of the receiving tube (2) is provided with a cylinder (3), the bottom of the cylinder (3) is provided with a stroke sensor (4), the bottom of the central column (1) is provided with an installation tube (5), and the outer wall of the installation tube (5) is provided with multiple clamping components (6). A central rod (201) is provided through the center of the inner cavity of the receiving tube (2). An extrusion plate (202) is fixedly provided on the top of the central rod (201). One end of the central rod (201) passes through the central column (1) and communicates with the interior of the mounting tube (5). The cylinder (3) has a push rod (301) that slides through it. A movable piece (302) is fixedly connected to the top of the push rod (301). A connecting pipe (303) is installed at the top and bottom of the side wall of the cylinder (3). The clamping assembly (6) includes a rotating plate (601), one end of which is rotatably connected to a pressing block (602), and the outer wall of the mounting tube (5) near the rotating plate (601) is threadedly connected to a pressing ring (501).

2. The weld bolt travel detection device of claim 1, wherein: The central column (1) is equipped with a cooling pipe (101) inside. Both sides of the top of the cooling pipe (101) are equipped with conveying pipes (102), and the two conveying pipes (102) are connected to the two ends of the cooling pipe (101) respectively.

3. The weld bolt travel detection device of claim 1, wherein: The top end of the mounting tube (5) is fixedly connected to the bottom end of the central column (1). Welding bolts are installed inside the bottom end of the mounting tube (5). A rectangular hole (502) is opened on the side of the bottom end of the mounting tube (5) near the extrusion block (602). The rectangular hole (502) is slidably connected to the extrusion block (602).

4. The weld bolt travel detection apparatus of claim 1, wherein: A rotating torsion spring (603) is installed at the center of the side wall of the rotating plate (601). The center of the clamping assembly (6) is rotatably connected to the outer wall of the mounting tube (5) through the rotating torsion spring (603). The outer wall of the extrusion ring (501) is inclined towards the center at one end near the clamping assembly (6), and one end of the rotating plate (601) is in contact with the outer wall of the extrusion ring (501).

5. The weld bolt travel detection apparatus of claim 1, wherein: The cylinder (3) is slidably connected to the movable plate (302), and the bottom end of the push rod (301) passes through the interior of the stroke sensor (4) and communicates with the interior of the receiving tube (2).

6. The weld bolt travel detection apparatus of claim 1, wherein: The extrusion plate (202) is slidably connected to the inside of the receiving tube (2), and a compression spring (203) is installed at the bottom of the extrusion plate (202). The bottom of the compression spring (203) is fixedly connected to the bottom end of the receiving tube (2).

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