Auxiliary measuring tool and measuring method for centering advance of welding gun

Abstract

The invention discloses a welding gun centering advance auxiliary measuring tool and a measuring method, the welding gun centering advance auxiliary measuring tool comprises two supporting pieces, a connecting piece, a horizontal measurement calibration device, a detection light source, a power supply and a switch, the number of the supporting pieces is two, the lengths of the two supporting pieces are equal, and the two supporting pieces are vertically arranged in parallel; the connecting piece is horizontally arranged between the two supporting pieces, and the connecting piece is vertically connected with the tops of the two supporting pieces, so that the connecting piece and the supporting pieces form a U-shaped structure; the horizontal calibration equipment is fixedly arranged on the connecting piece; the detection light source is fixedly arranged in the middle of the connecting piece, so that the detection light source can emit a vertical polymerized light beam parallel to the two supporting pieces and perpendicular to the connecting piece after being powered on; the power supply is arranged on the connecting piece and used for providing electric energy for the detection light source; the switch is arranged between the detection light source and the power supply and used for controlling on-off of the detection light source by controlling on-off of the power supply. And the centering advance of the welding gun can be quickly measured without depending on the technical level of operators.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary tooling, and in particular to an auxiliary measuring tooling and a measuring method for the centering advance amount of a welding gun. Background Art

[0002] When welding the outer wall of cylindrical workpieces such as the main cylinder body and the main plunger, the manual marking method is generally used to measure the centering advance amount between the welding gun and the center of the workpiece. The operation time is long and the labor cost is high. In addition, it is affected by human factors such as the operator's technical level and operating experience. It is inevitable that large measurement errors will easily occur, making it difficult to meet the process requirements and prone to a large number of welding defects, affecting product quality. Summary of the invention

[0003] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides a welding gun centering advance amount auxiliary measurement tool and measurement method, which can quickly measure the welding gun centering advance amount without relying on the operator's technical level. The measurement structure is stable, accurate and reliable, and the auxiliary measurement device has low cost, simple structure and is easy to operate.

[0004] The technical solution of the present invention is as follows:

[0005] In a first aspect, the present invention provides a welding gun centering advance auxiliary measurement tool, comprising:

[0006] Support members, wherein the number of the support members is set to two, the lengths of the two support members are equal, and the two support members are arranged in parallel and vertically;

[0007] A connecting member, the connecting member is horizontally arranged between the two supporting members, and the connecting member is vertically connected to the tops of the two supporting members, so that the connecting member and the supporting members form a U-shaped structure;

[0008] A level measurement calibration device, wherein the level calibration device is fixedly arranged on the connecting member;

[0009] A detection light source, the detection light source is fixedly arranged in the middle of the connecting member, and the detection light source is arranged to be a light source capable of emitting a convergent light beam, so that after the detection light source is powered on, it can emit a vertical convergent light beam parallel to the two supporting members and perpendicular to the connecting member;

[0010] A power supply, which is arranged on the connecting member and is used to provide electrical energy for the detection light source;

[0011] A switch is provided between the detection light source and the power supply, and is used for controlling the on and off of the detection light source by controlling the on and off of the power supply.

[0012] Furthermore, in the above-mentioned welding gun centering advance amount auxiliary measurement tool, the support member and the connecting member are both made of aluminum alloy.

[0013] Furthermore, in the above-mentioned welding gun centering advance amount auxiliary measurement tool, the horizontal measurement calibration equipment includes a level.

[0014] Furthermore, in the above-mentioned welding gun centering advance auxiliary measurement tooling, the number of the horizontal measurement calibration devices includes two, and the two horizontal measurement calibration devices are arranged on the same side of the connecting piece, located on the front end face or the rear end face of the connecting piece.

[0015] Furthermore, in the above-mentioned welding gun centering advance auxiliary measurement tool, the support member and the connecting member are connected by screws or bolts.

[0016] Furthermore, in the above-mentioned welding gun centering advance auxiliary measurement tool, the detection light source includes a beam lamp or a laser lamp.

[0017] Furthermore, in the above-mentioned welding gun centering advance amount auxiliary measurement tooling, a slide rail perpendicular to the two support members is arranged at the bottom of the connecting member, and scale lines symmetrically distributed along the center position of the connecting member are arranged on one side surface of the connecting member where the horizontal measurement calibration device is arranged, so that the detection light source can move between the two support members along the slide rail while measuring the distance from the detection light source to the center position of the connecting member.

[0018] Furthermore, in the above-mentioned welding gun centering advance auxiliary measurement tooling, the detection light source is set to two, one of the two detection light sources is fixedly set in the middle of the connecting piece, and the other of the two detection light sources is set as a movable detection light source.

[0019] In a second aspect, the present invention further provides a welding gun centering advance amount auxiliary measurement method using the welding gun centering advance amount auxiliary measurement tooling, comprising:

[0020] A welding gun centering advance auxiliary measurement tool is set on the workpiece to be tested, and the bottoms of the two support members are fully in contact with the surface of the workpiece to be tested, so that the measured position of the workpiece to be welded is located in the area formed by the two support members;

[0021] Adjust the position of the welding gun centering advance auxiliary measurement tool so that the horizontal measurement calibration device displays a horizontal state;

[0022] Turn on the switch, and turn on the detection light source and the power supply, so that the detection light source emits a vertical convergent light beam parallel to the two supporting members and perpendicular to the connecting member to the surface of the object to be tested;

[0023] Use an external auxiliary tool to measure the distance from the concentrated light beam emitted by the detection light source to the welding gun. The measured distance is the welding gun centering advance amount.

[0024] Furthermore, in the above-mentioned welding gun centering advance amount auxiliary measurement method, the external auxiliary device includes a caliper or a tape measure.

[0025] The main advantages of the technical solution of the present invention are as follows:

[0026] The welding gun centering advance amount auxiliary measurement tool of the present invention includes a support member, a connecting member, a horizontal measurement calibration device, a detection light source, a power supply and a switch, and has a simple structure. The detection light source emits a vertical convergent light beam parallel to two support members and perpendicular to the connecting member to the surface of the measured part; the distance between the convergent light beam emitted by the detection light source and the welding gun is the welding gun centering advance amount, so the welding gun centering advance amount can be measured conveniently, quickly and accurately, thereby ensuring the welding quality, and does not rely on the technical level of the operator. The measurement structure is stable and reliable, and the auxiliary measurement device has low cost and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the embodiments of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 It is a structural schematic diagram of a welding gun centering advance auxiliary measurement tool according to an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the structure of a support member in a welding gun centering advance auxiliary measurement tool provided in an embodiment of the present invention;

[0030] Figure 3 A schematic structural diagram of measuring the welding gun centering advance amount of a workpiece using the welding gun centering advance amount auxiliary measuring tool of the present invention provided in one embodiment of the present invention;

[0031] Figure 4 for Figure 3 The enlarged structural diagram of the middle part I;

[0032] Figure 5 for Figure 3 Schematic diagram of the structure in the middle A direction;

[0033] Figure 6 For application Figure 3 An enlarged schematic diagram of the measurement result of the welding gun centering advance amount of the measured workpiece using the welding gun centering advance amount auxiliary measurement tool of the present invention provided in one embodiment of the present invention;

[0034] Figure 7A schematic diagram of the principle structure of measuring the welding gun centering advance amount of a workpiece using the welding gun centering advance amount auxiliary measuring tool of the present invention provided in one embodiment of the present invention;

[0035] Figure 8 for Figure 7 The enlarged structural diagram of the middle K part;

[0036] Fig. 9 A schematic structural diagram of measuring the welding gun centering advance amount of a workpiece by using the welding gun centering advance amount auxiliary measuring tool of the present invention, provided in an optional embodiment of the present invention;

[0037] Fig.10 A schematic structural diagram of another optional embodiment of the present invention for measuring the welding gun centering advance amount of a workpiece by using the welding gun centering advance amount auxiliary measuring tool of the present invention;

[0038] Fig.11 A schematic flow chart of a welding gun centering advance auxiliary measurement tooling method provided in an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 1. Support parts; 2. Connectors; 3. Level measurement and calibration equipment; 4. Detection light source; 5. Switch; 6. Power supply; 7. Measured object. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0042] The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

[0043] It should be noted that the welding gun centering advance amount in the present invention refers to the distance between the welding gun and the workpiece center of the tested part 7 when welding the weld on the tested part 7 of a circular structure.

[0044] As attached Figure 1-10 As shown, an embodiment of the present invention provides a welding gun centering advance auxiliary measurement tool, which includes: a support 1, a connecting member 2, a horizontal measurement calibration device 3, a detection light source 4, a power supply 6 and a switch 5, wherein:

[0045] The number of support members 1 is set to two, the lengths of the two support members 1 are equal, and the two support members 1 are arranged in parallel and vertically; the connecting member 2 is horizontally arranged between the two support members 1, and the connecting member 2 is vertically connected to the tops of the two support members 1, so that the connecting member 2 and the support members 1 form a U-shaped structure; the horizontal calibration device is fixedly arranged on the connecting member 2; the detection light source 4 is fixedly arranged in the middle of the connecting member 2, and the detection light source 4 is arranged to be a light source that can emit a polymer light beam, so that after the detection light source 4 is connected to the power supply 6, it can emit a vertical polymer light beam parallel to the two support members 1 and perpendicular to the connecting member 2; the power supply 6 is arranged on the connecting member 2, for providing electrical energy to the detection light source 4; the switch 5 is arranged between the detection light source 4 and the power supply 6, for controlling the on and off of the detection light source 4 by controlling the on and off of the power supply 6.

[0046] Specifically, combined Figure 1-10 The principle of the welding gun centering advance amount auxiliary measurement tool of the present invention for measuring the welding gun centering advance amount includes:

[0047] Since the horizontal axes of the connecting member 2 and the horizontal measurement calibration equipment 3 are both in a horizontal state, the two parallel supporting members 1 are at the same height, perpendicular to the connecting member 1, and the lower ends are completely in contact with the outer end surface of the measured object 7, and since the detection light source 4 is located at the midpoint of the connecting member 2, the auxiliary measuring tooling and the measured object 7 are mirror-symmetrical with respect to the vertical axis (light spot line) at this time. Therefore, the aggregated light spot emitted by the detection light source 4 coincides with the vertical axis of the measured object, that is, the light spot points to the center of the cylindrical workpiece. When measuring the welding gun centering advance, place the welding gun centering advance auxiliary measurement tooling on the measured workpiece 7, and make the bottom of the two support members 1 fully contact with the surface of the measured workpiece 7, so that the measured position of the workpiece to be welded is located in the area formed by the two support members 1; adjust the position of the welding gun centering advance auxiliary measurement tooling so that the horizontal measurement calibration equipment 3 displays a horizontal state; turn on the switch 5, and turn on the switch 5 of the detection light source 4 and the power supply 6, so that the detection light source 4 emits a vertical convergent light beam parallel to the two support members 1 and perpendicular to the connecting member 2 to the surface of the measured workpiece 7; the distance from the convergent light beam emitted by the detection light source 4 to the welding gun is the welding gun centering advance.

[0048] Therefore, the auxiliary tooling of the present invention can conveniently, quickly and accurately measure the welding gun centering advance amount through the above-mentioned device, thereby ensuring the welding quality, and is not dependent on the technical level of the operator. The measurement structure is stable and reliable, and the auxiliary measuring device is low in cost, simple in structure, and easy to operate.

[0049] Specifically, in the welding gun centering advance auxiliary measurement tool of the present invention, the support member 1 and the connecting member 2 are both made of aluminum alloy, preferably made of aluminum alloy pipe.

[0050] Such a setting can reduce the weight of the auxiliary measuring tooling, facilitate carrying and measurement, and further improve the measurement efficiency. At the same time, since the horizontal measurement and calibration equipment 3 needs to be leveled and calibrated when the auxiliary measuring tooling of the present invention is used to measure the welding gun centering advance amount, it can also reduce the physical exertion of the operating personnel.

[0051] In some optional implementations of this embodiment, the level measurement calibration device 3 includes a level. Preferably, there are two level measurement calibration devices 3 , which are arranged on the same side of the connecting member 2 , at the front end or rear end of the connecting member 2 .

[0052] Such an arrangement enables the auxiliary measuring tool of the present invention to have a smaller measurement error and a more accurate and reliable measurement result when measuring the welding gun centering advance amount through calibration of the two horizontal measuring calibration devices 3 .

[0053] In some optional implementations of the present embodiment, in order to further improve the accuracy of the welding gun centering advance amount measurement result of the welding gun centering advance amount auxiliary measurement tool of the present invention, a vertical level can be set on one or two support members 1 to detect whether the support member 1 is in full contact with the measured part 7 during the welding gun centering advance amount measurement of the auxiliary measurement tool of the present invention, and to detect whether the concentrated light beam emitted by the light source 4 is perpendicular to the surface of the measured part 7.

[0054] In some optional implementations of this embodiment, the support member 1 and the connecting member 2 are connected by screws or bolts. At the same time, in order to facilitate the use and measurement of the auxiliary measurement tool of the present invention by operators, the upper end surface of the connecting member 2 is set to be flush with the top end surface of the support member 1.

[0055] In order to ensure that the auxiliary measuring tool for the welding gun centering advance amount in the present invention does not shake when it is placed on the workpiece 7 to be measured, and to avoid the auxiliary tool for the present invention from tipping over and falling over during the measurement process, in order to make the contact area between the support member 1 and the workpiece 7 larger and at the same time have the characteristics of light weight, the support member 1 is set to a trapezoidal structure, such as Figure 2 As shown, the upper base of the trapezoidal structure is aligned with the top end face of the connecting member 2, and the lower base of the trapezoidal structure is set as a free edge, which is brought into contact with the workpiece 7 when measuring the welding gun centering advance, so that the device of the present invention is more stable when it is set on the workpiece 7.

[0056] At the same time, in order to make the support member 1 of the present invention more stable when it is arranged on the measured object 7, as shown in FIG. Figure 6As shown, the contact portion between the connector 2 and the tested piece 7 is set as an arc surface or an inclined surface, so that the bottom of the connector 2 is in surface contact with the arc surface of the tested piece 7, which is more stable, thereby enabling the detected result to be more accurate and reliable.

[0057] In some optional implementations of the present embodiment, in order to enable the auxiliary measuring tool of the present invention to be set on the workpiece under test 7 and avoid movement after the horizontal measurement and calibration equipment 3 is leveled, resulting in repeated leveling operations and affecting the detection efficiency, an anti-slip pad may be provided at the contact portion between the support 1 and the workpiece under test 7, or anti-slip grooves may be provided at the contact portion between the support 1 and the workpiece under test 7.

[0058] In some optional implementations of this embodiment, the detection light source 4 can be set as a beam lamp or a laser lamp. In this way, the welding gun centering advance amount can be measured according to the non-divergent light beam emitted by the laser lamp or the beam lamp, and the measurement result is accurate and reliable.

[0059] In another optional implementation of this embodiment, as Fig.10 As shown, a slide rail perpendicular to the two support members 1 can be set at the bottom of the connecting member 2, and scale lines symmetrically distributed along the center position of the connecting member 2 can be set on one side surface of the connecting member 2 where the horizontal measurement calibration device 3 is set, so that the detection light source 4 can move between the two support members 1 along the slide rail while measuring the distance from the detection light source 4 to the center position of the connecting member 2.

[0060] With such an arrangement, the measured value can be directly read while measuring the welding gun centering advance amount, reducing the process of using external measuring devices for auxiliary measurement, further improving the efficiency of the welding gun centering advance amount, and at the same time, since the set scale is set on the connecting piece 2, the measured result is more accurate, avoiding the errors generated in the measurement process using external auxiliary tools.

[0061] In another optional implementation of this embodiment, as Fig. 9 As shown, two detection light sources 4 can be provided, one of the two detection light sources 4 is fixedly provided in the middle of the connecting member 2 , and the other of the two detection light sources 4 is provided as a movable detection light source 4 .

[0062] With such an arrangement, when measuring the welding gun centering advance amount, the laser light position can be set in advance according to the advance amount required by the process, so that the light spot on the workpiece 7 irradiated by the light beam emitted by the welding gun and the active detection light source 4 coincides, or coincides with the active detection light source 4 with the adjusted position, so that the measurement and inspection of the welding gun advance amount can be achieved more quickly.

[0063] In another optional implementation of the present embodiment, in order to adapt to the measurement of the centering advance amount of welding guns of different sizes and enable the auxiliary measuring tool of the present invention to measure the test pieces 7 of different sizes, the connecting piece 2 can be set as a telescopic structure; specifically, a gear can be set in the middle part of the interior of the connecting piece 2, and a rack meshing with it is set above and below the set rack, so that during the rotation of one gear, the two racks can be driven to move in opposite directions, that is, the connection piece 2 can be extended and retracted, and at the same time, the two ends of the telescopic part are of equal length relative to the midpoint of the connecting piece 2, so that the structure of the connecting piece 2 is simpler, and the space occupied by the auxiliary tool of the present invention is not expanded. The weight is smaller than that of the original tool, and it can also match the measurement of different test pieces 7 and welding gun centering advance amounts of different sizes. At the same time, in order to make the rack more stable during movement, a slide groove or slideway is provided on each of the two racks along the direction of movement, and an optical axis matching the slideway or slideway is provided on the connecting member 2 at the corresponding position of the slide groove, so that the slideway and optical axis can play a guiding role while making the rack movement more stable.

[0064] In order to reduce friction when the optical axis moves in the slide or groove, a bearing may be sleeved on the optical axis to make the extension and retraction of the connecting member 2 smoother. At the same time, in order to avoid the connection member 2 being placed on the measured object 7 after extension and retraction and changing the extension and retraction size of the connecting member 2 due to gravity factors, causing the connecting member 2 to continue to retract and retract, a knob perpendicular to the rack may be provided on the connecting member 2, and an anti-slip pad may be provided at the end of the knob contacting the rack. By the knob contacting the rack, the size of the connecting member 2 is prevented from continuing to change by means of compression force and friction.

[0065] Second, as Fig.11 As shown, the present invention also provides a welding gun centering advance amount auxiliary measurement method using the welding gun centering advance amount auxiliary measurement tooling, comprising:

[0066] An auxiliary measuring tool for the centering advance amount of the welding gun is set on the workpiece 7 to fully contact the bottom of the two supporting members 1 with the surface of the workpiece 7 to make the measured position of the workpiece to be welded located in the area formed by the two supporting members 1; the position of the auxiliary measuring tool for the centering advance amount of the welding gun is adjusted to make the horizontal measurement calibration equipment 3 display a horizontal state; turn on the switch 5, and turn on the switch 5 of the detection light source 4 and the power supply 6, so that the detection light source 4 emits a vertical convergent light beam parallel to the two supporting members 1 and perpendicular to the connecting member 2 to the surface of the workpiece 7 to be measured; use an external auxiliary tool to measure the distance from the convergent light beam emitted by the detection light source 4 to the welding gun, and the measured distance is the centering advance amount of the welding gun.

[0067] In some optional implementations of this embodiment, the external auxiliary device may be a caliper or a tape measure.

[0068] Therefore, the above method of the present invention can solve the problem of inaccurate measurement of welding gun centering advance amount by the marking method in the prior art, and can also solve the problem of different measurement accuracy and measurement precision of different measurement personnel in the prior art, while also improving the measurement efficiency.

[0069] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding gun centering advance auxiliary measurement tool, characterized in that: include: Support members, wherein the number of the support members is set to two, the lengths of the two support members are equal, and the two support members are arranged in parallel and vertically; A connecting member, the connecting member is horizontally arranged between the two supporting members, and the connecting member is vertically connected to the tops of the two supporting members, so that the connecting member and the supporting members form a U-shaped structure; A level measurement calibration device, wherein the level calibration device is fixedly arranged on the connecting member; A detection light source, the detection light source is fixedly arranged in the middle of the connecting member, and the detection light source is arranged to be a light source capable of emitting a convergent light beam, so that after the detection light source is powered on, it can emit a vertical convergent light beam parallel to the two supporting members and perpendicular to the connecting member; A power supply, which is arranged on the connecting member and is used to provide electrical energy for the detection light source; A switch is provided between the detection light source and the power supply, and is used for controlling the on and off of the detection light source by controlling the on and off of the power supply.

2. The welding gun centering advance auxiliary measurement tool according to claim 1 is characterized in that: The supporting member and the connecting member are both made of aluminum alloy.

3. The welding gun centering advance auxiliary measurement tool according to claim 1 is characterized in that: The level measurement calibration device includes a level.

4. The welding gun centering advance auxiliary measurement tool according to any one of claims 1 or 3, characterized in that: The number of the horizontal measurement calibration devices includes two, and the two horizontal measurement calibration devices are arranged on the same side of the connecting member, located on the front end surface or the rear end surface of the connecting member.

5. The welding gun centering advance auxiliary measurement tool according to claim 4 is characterized in that: The supporting member and the connecting member are connected by screws or bolts.

6. The welding gun centering advance auxiliary measurement tool according to claim 1, characterized in that: The detection light source includes a beam lamp or a laser lamp.

7. The welding gun centering advance auxiliary measurement tool according to claim 1, characterized in that: A slide rail perpendicular to the two supporting members is arranged at the bottom of the connecting member, and scale lines symmetrically distributed along the center position of the connecting member are arranged on one side surface of the connecting member where the horizontal measurement calibration device is arranged, so that the detection light source can move between the two supporting members along the slide rail while measuring the distance from the detection light source to the center position of the connecting member.

8. The welding gun centering advance auxiliary measurement tool according to claim 7, characterized in that: The number of the detection light sources is two, one of the two detection light sources is fixedly disposed at the middle of the connecting member, and the other of the two detection light sources is disposed as a movable detection light source.

9. A welding gun centering advance amount auxiliary measurement method using the welding gun centering advance amount auxiliary measurement tool as described in any one of claims 1 to 8, characterized in that: include: A welding gun centering advance auxiliary measurement tool is set on the workpiece to be tested, and the bottoms of the two support members are fully in contact with the surface of the workpiece to be tested, so that the measured position of the workpiece to be welded is located in the area formed by the two support members; Adjust the position of the welding gun centering advance auxiliary measurement tool so that the horizontal measurement calibration device displays a horizontal state; Turn on the switch, and turn on the detection light source and the power supply, so that the detection light source emits a vertical convergent light beam parallel to the two supporting members and perpendicular to the connecting member to the surface of the object to be tested; Use an external auxiliary tool to measure the distance from the concentrated light beam emitted by the detection light source to the welding gun. The measured distance is the welding gun centering advance amount.

10. The welding gun centering advance auxiliary measurement method according to claim 9, characterized in that: The external auxiliary device includes a caliper or a measuring tape.

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