Spot welding detection tool

By designing spot welding inspection tooling, the tensile limit of the spot welding workpiece is measured using the detection mechanism and the driving mechanism, the problem of difficult to monitor welding quality during the spot welding process is solved, and production efficiency is improved and costs are reduced.

CN223064992UActive Publication Date: 2025-07-04HONGDE AUTO PARTS (WUHAN) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421437376.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-24
Publication Date
2025-07-04
Estimated Expiration
2034-06-24

AI Technical Summary

Technical Problem

The prior art is difficult to monitor welding quality in real time during spot welding, resulting in poor welding and rework and scrapping, low production efficiency and high cost.

Method used

Design a spot welding inspection tool, including a detection mechanism and a driving mechanism, by clamping the fixed spot welding workpiece, and combining Hooke's law and distance measuring sensing equipment, the tensile limit of the spot welding workpiece is determined to ensure welding quality.

Benefits of technology

The quality inspection of point-welded workpieces is achieved, production efficiency is improved, production costs are reduced, and rework and scrapping are avoided due to poor welding.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223064992U_ABST
    Figure CN223064992U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of spot welding detection devices, and discloses a spot welding detection tool which comprises a base, the right end of the top of the base is fixedly connected with a detection mechanism, and the interior of the base is fixedly connected with a driving mechanism; the detection mechanism comprises a bottom plate, the bottom plate is fixedly connected to the right end of the top of the base, an L-shaped seat is fixedly connected to the top of the bottom plate, a positioning ring is fixedly connected to the side face of the L-shaped seat, a round rod is rotatably connected to the interior of the top end of the L-shaped seat, a vertical plate is fixedly connected to one end of the surface of the round rod, and a first spring is fixedly connected to the top end of the right side of the vertical plate. According to the spot welding detection tool, the clamped spot welding workpiece is driven to be pulled, the reading of the tension meter is observed, the numerical value is read when the spot welding workpiece is broken, the pulling force limit of the spot welding workpiece is measured according to the Hooke law and the reading of the distance measurement sensing equipment, the spot welding degree of the spot welding workpiece is detected, and the spot welding quality of the spot welding workpiece is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding detection devices, and specifically relates to a spot welding detection tooling. Background Technique

[0002] Spot welding detection is a technology used to ensure welding quality. It monitors the welding quality in real time during the welding process, discovers and solves problems in a timely manner to ensure the stability and reliability of product quality. Through spot welding detection, problems such as rework and scrapping caused by poor welding quality can be avoided, production efficiency can be improved, and production costs can be reduced.

[0003] During the detection process of spot welding workpieces, it usually involves monitoring key values such as welding current, voltage, power, welding time, pressure, and displacement. These data can help evaluate welding quality and discover potential problems in a timely manner. In addition, it also includes the detection of the spot welding degree of spot welding workpieces, and then through these detections, the spot welding quality of spot welding workpieces is guaranteed. Based on the above purposes, a spot welding detection tooling needs to be designed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spot welding detection tooling to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A spot welding detection tooling, including a base, a detection mechanism is fixedly connected to the right end of the top of the base, and a driving mechanism is fixedly connected inside the base;

[0006] The detection mechanism includes a bottom plate, the bottom plate is fixedly connected to the right end of the top of the base, an L-shaped seat is fixedly connected to the top of the bottom plate, a positioning ring is fixedly connected to the side of the L-shaped seat, a round rod is rotatably connected inside the top end of the L-shaped seat, a vertical plate is fixedly connected to one end of the surface of the round rod, a first spring is fixedly connected to the top right end of the vertical plate, a T-shaped rod is fixedly connected to the right end of the first spring, a sliding rod is rotatably connected inside the bottom end of the vertical plate, a support seat is arranged on the surface of the sliding rod, a limiting rod is slidably connected inside the support seat, the bottom end of the limiting rod is fixedly connected to the top of the L-shaped seat, there are two L-shaped seats, a T-shaped rod is fixedly connected to the left end of the left L-shaped seat, a second spring is fixedly connected to one end of the T-shaped rod, an L-shaped plate is fixedly connected to one end of the second spring, a tension gauge is fixedly connected to the left end of the T-shaped rod, and the T-shaped rod is slidably connected inside the L-shaped plate.

[0007] Preferably, a positioning hole is opened inside the positioning ring, and one end of the surface of the T-shaped rod penetrates through the positioning hole opened inside the positioning ring, which is convenient for the T-shaped rod to be clamped into the positioning hole to play a role in clamping and fixing the test piece.

[0008] Preferably, a chute is provided inside the support base, and the surface of the sliding rod is movably connected to the inside of the chute.

[0009] Preferably, a through hole is provided inside the top end of the round rod, and the surface of the T-shaped rod penetrates through the through hole provided inside the top end of the round rod, facilitating the movement of the T-shaped rod inside the through hole provided inside the top end of the round rod.

[0010] Preferably, the driving mechanism includes an electric push rod, the electric push rod is fixedly connected to the right end inside the base, a rack is fixedly connected to the left end of the electric push rod, gears are respectively meshed with the front and rear ends of the surface of the rack, a toothed rod is fixedly connected inside the gear, the bottom end of the toothed rod is rotatably connected to the inside of the base, a hollow strip is fixedly connected to the top end of the toothed rod, a limiting plate is arranged inside the hollow strip, a long strip is fixedly connected to one side of the limiting plate, one end of the long strip is rotatably connected to an ear plate seat, a connecting seat is fixedly connected to the bottom end of the ear plate seat, the bottom end of the connecting seat is fixedly connected to the top of the rack, a ranging sensor device is fixedly connected to the left end of the top of the base, and the left end of the L-shaped seat and the left end of the tension gauge are fixedly connected to the right side of the connecting seat.

[0011] Preferably, a chute is provided in the middle inside the base, the surface of the rack is slidably connected to the inside of the chute, a limiting groove is provided at the top of the chute, and the surface of the connecting seat is slidably connected to the limiting groove.

[0012] Preferably, a limiting guide groove is provided inside the hollow strip, and the surface of the limiting plate is slidably connected to the inside of the limiting guide groove, facilitating the sliding of the limiting plate under the limitation of the limiting guide groove.

[0013] Compared with the prior art, the utility model provides a spot welding detection tooling, which has the following beneficial effects:

[0014] 1. For this spot welding detection tooling, through the provided detection mechanism, rotating the vertical plate drives the sliding rod to slide inside the support base, and at the same time, the sliding rod rotates in an arc with the round rod as the axis, thereby driving the support base to slide up and down under the limitation of the limiting rod, so that the support base moves downward to clamp and fix the spot welding workpiece with the L-shaped seat.

[0015] 2. For this spot welding detection tooling, through the provided driving mechanism, the ear plate seat moves in the left and right directions, thereby driving the L-shaped plate to move, pulling the second spring to undergo elastic changes, and driving the tension gauge to change its reading, further driving the pulling of the clamped spot welding workpiece, observing the reading of the tension gauge, and reading the value when the spot welding workpiece breaks, and then combining with Hooke's law and the reading of the ranging sensor device to measure the tensile limit of the spot welding workpiece and detect the spot welding degree of the spot welding workpiece to ensure the spot welding quality of the spot welding workpiece. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings:

[0017] Figure 1 Is the three-dimensional view of the overall structure of the present utility model;

[0018] Figure 2 Is the three-dimensional view of the detection mechanism of the present utility model;

[0019] Figure 3 Is the three-dimensional exploded view of the parts of the detection mechanism of the present utility model;

[0020] Figure 4 Is the three-dimensional exploded view of the driving mechanism of the present utility model;

[0021] Figure 5 Is the three-dimensional sectional view of the base of the present utility model.

[0022] In the figure: 1. Base; 2. Detection mechanism; 21. Bottom plate; 22. L-shaped seat; 23. Positioning ring; 24. Round rod; 25. Vertical plate; 251. First spring; 252. Slide bar; 26. T-shaped rod; 27. Support seat; 271. Limit rod; 28. L-shaped plate; 281. Second spring; 29. T-shaped rod; 291. Tensile meter; 3. Driving mechanism; 31. Electric push rod; 32. Rack; 33. Gear; 331. Tooth bar; 34. Hollow strip; 35. Limit plate; 36. Long strip; 37. Ear plate seat; 38. Connecting seat; 39. Distance measuring sensor device. Specific embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The present utility model provides the following technical solutions:

[0026] Embodiment 1

[0027] Combined with Figures 2 to 5 , a spot welding detection tooling, which includes a base 1. At the right end of the top of the base 1, a detection mechanism 2 is fixedly connected, and a driving mechanism 3 is fixedly connected inside the base 1;

[0028] The detection mechanism 2 includes a bottom plate 21, and the bottom plate 21 is fixedly connected to the right end of the top of the base 1. A L-shaped seat 22 is fixedly connected to the top of the bottom plate 21. A positioning ring 23 is fixedly connected to the side of the L-shaped seat 22. A round rod 24 is rotatably connected inside the top end of the L-shaped seat 22. One end of the surface of the round rod 24 is fixedly connected with a vertical plate 25. A first spring 251 is fixedly connected to the top right end of the vertical plate 25. The right end of the first spring 251 is fixedly connected with a T-shaped rod 26. A sliding rod 252 is rotatably connected inside the bottom end of the vertical plate 25. A support seat 27 is arranged on the surface of the sliding rod 252. A limiting rod 271 is slidably connected inside the support seat 27. The bottom end of the limiting rod 271 is fixedly connected to the top of the L-shaped seat 22. There are two L-shaped seats 22. A T-shaped rod 29 is fixedly connected to the left end of the left L-shaped seat 22. One end of the T-shaped rod 29 is fixedly connected with a second spring 281. One end of the second spring 281 is fixedly connected with an L-shaped plate 28. A tensile meter 291 is fixedly connected to the left end of the T-shaped rod 29. The inside of the L-shaped plate 28 is slidably connected with the surface of the T-shaped rod 29. A positioning hole is opened inside the positioning ring 23. One end of the surface of the T-shaped rod 26 penetrates through the positioning hole opened inside the positioning ring 23. A chute is opened inside the support seat 27. The surface of the sliding rod 252 is movably connected with the inside of the chute.

[0029] Furthermore, a through hole is opened inside the top end of the round rod 24. The surface of the T-shaped rod 26 penetrates through the through hole opened inside the top end of the round rod 24. Rotating the vertical plate 25 drives the sliding rod 252 to slide inside the support seat 27, and at the same time, the sliding rod 252 rotates in an arc with the round rod 24 as the axis, thereby driving the support seat 27 to slide up and down by the limitation of the limiting rod 271, so that the support seat 27 moves downward to clamp and fix the spot welding workpiece with the L-shaped seat 22.

[0030] Embodiment 2

[0031] Refer toFigures 1 - 4 On the basis of the first embodiment, the driving mechanism 3 further comprises an electric push rod 31, which is fixedly connected to the right end of the base 1, and a rack 32 is fixedly connected to the left end of the electric push rod 31. The front and rear ends of the surface of the rack 32 are respectively meshed with gears 33, and a gear rod 331 is fixedly connected inside the gear 33. The bottom end of the gear rod 331 is rotatably connected to the inside of the base 1, and the top of the gear rod 331 is fixedly connected to a hollow bar 34. A limit plate 35 is arranged inside the hollow bar 34, and one side of the limit plate 35 is fixed A long strip 36 is connected, one end of the long strip 36 is rotatably connected to an ear plate seat 37, the bottom end of the ear plate seat 37 is fixedly connected to a connecting seat 38, the bottom end of the connecting seat 38 is fixedly connected to the top of the rack 32, the left end of the top of the base 1 is fixedly connected to a distance measuring sensor device 39, the left end of the L-shaped seat 22 and the left end of the tension gauge 291 are fixedly connected to the right side of the connecting seat 38, a slide groove is provided in the middle of the inside of the base 1, the surface of the rack 32 is slidably connected to the inside of the slide groove, a limit groove is provided at the top of the slide groove, and the surface of the connecting seat 38 is slidably connected to the limit groove.

[0032] Furthermore, a limit guide groove is opened inside the hollow strip 34, and the surface of the limit plate 35 is slidably connected to the inside of the limit guide groove. The ear plate seat 37 moves in the left and right directions, thereby driving the L-shaped plate 28 to move, and pulling the second spring 281 to change its elasticity, and driving the tension gauge 291 to change its reading, thereby driving the clamped spot welding workpiece to be pulled, observing the reading of the tension gauge 291, and reading the value when the spot welding workpiece breaks, and then combining Hooke's law and the reading of the distance measuring sensor device 39 to determine the tensile force limit of the spot welding workpiece, and to detect the spot welding degree of the spot welding workpiece to ensure the spot welding quality of the spot welding workpiece.

[0033] In actual operation, when this device is used, during the tensile force test of the spot-welded workpiece, the spot-welded workpiece is placed at the bottom of the support seat 27, and then the T-shaped rod 26 is pulled open to let it escape from the inside of the positioning ring 23. At this time, the vertical plate 25 is rotated to drive the slide bar 252 to slide inside the support seat 27, and the slide bar 252 simultaneously rotates in an arc with the round rod 24 as the axis, thereby driving the support seat 27 to slide up and down by using the limit rod 271, so that the support seat 27 is downwardly clamped and fixed with the L-shaped seat 22 to the spot-welded workpiece;

[0034] After the detection is carried out, at this time, the electric push rod 31 pushes the rack 32 to move and drives the gear 33 and the tooth bar 331 to rotate, thereby driving the hollow strip 34 and the long strip 36 to move, and driving the ear plate seat 37 to move in the left-right direction, thereby driving the L-shaped plate 28 to move, pulling the second spring 281 to undergo elastic changes, and driving the tension meter 291 to change its reading, thereby driving the traction of the spot-welded workpiece being clamped. Observe the reading of the tension meter 291, and read the value when the spot-welded workpiece breaks. Then, in combination with Hooke's law and the reading of the ranging sensor device 39, the tensile limit of the spot-welded workpiece is determined.

[0035] 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 actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A spot welding detection tooling, comprising a base (1), characterized in that: A detection mechanism (2) is fixedly connected to the right end of the top of the base (1), and a driving mechanism (3) is fixedly connected inside the base (1); The detection mechanism (2) includes a base plate (21) fixedly connected to the right end of the top of the base (1). A L-shaped seat (22) is fixedly connected to the top of the base plate (21). A positioning ring (23) is fixedly connected to the side of the L-shaped seat (22). A round rod (24) is rotatably connected inside the top end of the L-shaped seat (22). A vertical plate (25) is fixedly connected to one end of the surface of the round rod (24). A first spring (251) is fixedly connected to the top right end of the vertical plate (25). The right end of the first spring (251) is fixedly connected to a T-shaped rod (26). A sliding rod (252) is rotatably connected inside the bottom end of the vertical plate (25). A support seat (27) is arranged on the surface of the sliding rod (252). A limiting rod (271) is slidably connected inside the support seat (27). The bottom end of the limiting rod (271) is fixedly connected to the top of the L-shaped seat (22). There are two L-shaped seats (22). A T-shaped rod (29) is fixedly connected to the left end of the left L-shaped seat (22). A second spring (281) is fixedly connected to one end of the T-shaped rod (29). An L-shaped plate (28) is fixedly connected to one end of the second spring (281). A tension gauge (291) is fixedly connected to the left end of the T-shaped rod (29). The L-shaped plate (28) is slidably connected to the surface of the T-shaped rod (29).

2. The spot welding detection tooling according to claim 1, characterized in that: A positioning hole is opened inside the positioning ring (23), and one end of the surface of the T-shaped rod (26) penetrates through the positioning hole opened inside the positioning ring (23).

3. A spot welding detection tooling according to claim 1, characterized in that: A chute is opened inside the support seat (27), and the surface of the sliding rod (252) is movably connected to the inside of the chute.

4. A spot welding detection tooling according to claim 1, characterized in that: A through hole is opened inside the top end of the round rod (24), and the surface of the T-shaped rod (26) penetrates through the through hole opened inside the top end of the round rod (24).

5. The spot welding detection tooling according to claim 1, characterized in that: The driving mechanism (3) includes an electric push rod (31) fixedly connected to the right end inside the base (1). A rack (32) is fixedly connected to the left end of the electric push rod (31). Gears (33) are respectively meshed and connected to the front and rear ends of the surface of the rack (32). A tooth rod (331) is fixedly connected inside the gear (33). The bottom end of the tooth rod (331) is rotatably connected to the inside of the base (1). The top end of the tooth rod (331) is fixedly connected to a hollow strip (34). A limiting plate (35) is arranged inside the hollow strip (34). A long strip (36) is fixedly connected to one side of the limiting plate (35). An ear plate seat (37) is rotatably connected to one end of the long strip (36). A connecting seat (38) is fixedly connected to the bottom end of the ear plate seat (37). The bottom end of the connecting seat (38) is fixedly connected to the top of the rack (32). A distance measuring sensor device (39) is fixedly connected to the left end of the top of the base (1). The left end of the L-shaped seat (22) and the left end of the tension gauge (291) are fixedly connected to the right side of the connecting seat (38).

6. The spot welding detection tooling according to claim 5, characterized in that: A chute is provided in the middle inside the base (1), the surface of the rack (32) is slidably connected to the inside of the chute, a limiting groove is provided at the top of the chute, and the surface of the connecting seat (38) is slidably connected to the limiting groove.

7. A spot welding detection tooling according to claim 5, characterized in that: A limiting guide groove is provided inside the hollow strip (34), and the surface of the limiting plate (35) is slidably connected to the inside of the limiting guide groove.