Chisel inspection tool for resistance welding spot and use method thereof

Abstract

The present invention relates to the field of welding spot detection equipment, and specifically to a chisel inspection tool for resistance welding spots and a method for using the same, comprising a chisel; the chisel is connected to an impact mechanism, and the chisel is connected to the impact mechanism. The present invention discloses a chisel inspection tool for resistance welding spots, which can classify two plates that have been welded by electric welding through the coordinated use of the impact mechanism and the chisel, making it convenient for personnel to observe welding fusion, thereby realizing the inspection of welding quality; the impact mechanism and the chisel of the present invention are connected together, avoiding the problem of easy loss of the traditional hammer and chisel when they are placed separately.

Description

Technical Field

[0001] The invention relates to the field of welding spot detection equipment, in particular to a chisel detection tool for resistance welding spots and a use method thereof. Background Art

[0002] At present, in the process of body-in-white production, the process quality inspection of resistance spot welding uses a hammer and chisel to open the edge of the weld to observe the welding fusion. The process generally specifies a welding quality inspection frequency of 1 / 20.

[0003] During the production process, it is difficult to store and manage hammer and chisel tool sets, the operating safety is low during chiseling inspection, the operating techniques of special parts are high, and the chiseling force control is poor, which can easily lead to problems such as missing tools, safety hazards, operating difficulties, and plate breakage.

[0004] Therefore, a tool for resistance welding joint inspection is needed now. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a chisel inspection tool for resistance welding spot inspection.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A chisel inspection tool for resistance welding spots comprises a chisel; the chisel is connected to an impact mechanism, and the chisel is connected to the impact mechanism.

[0008] The impact mechanism comprises a slide bar connected with the chisel, and a slide hammer is arranged on the slide bar; an impact block is arranged on the slide bar, and the impact block is located in the area between the chisel and the slide hammer.

[0009] The slide bar is provided with a placement groove, and the chisel is connected to the slide bar through the placement groove.

[0010] The chisel and the slide rod are also connected by a locking portion, and the locking portion also includes a clamping block arranged at the end of the slide rod, and the clamping block includes an upper clamping block and a lower clamping block; the upper clamping block and the lower clamping block are arranged opposite to each other; and a locking nut is provided on the clamping block.

[0011] The upper clamping block is provided with an upper positioning groove, the lower clamping block is provided with a lower positioning groove, the outer side surface of the clamping block is an inclined surface, and the clamping block is a frustum-shaped structure; the locking nut is provided with a sleeve threaded hole, and the sleeve threaded hole is a frustum-shaped hole.

[0012] A limiting nut is arranged at one end of the slide bar away from the chisel; the limiting nut is connected to the slide bar through threads.

[0013] The slide hammer comprises a hammer body, and a through hole is arranged on the hammer body; the inner diameter of the through hole is not less than the outer diameter of the slide rod.

[0014] The hammer body is in the shape of a waist drum.

[0015] A method for using a chisel inspection tool for a resistance welding spot, the method comprising the following steps:

[0016] Step 1: Assemble the chisel inspection tool;

[0017] Step 2: Place the top of the chisel on the joint of the panels to be separated;

[0018] Step 3: After completing step 2, keep the chisel inspection tool stable, push the slide hammer up and down, and use the lower end of the slide hammer to hit the impact block, so that the slide bar has a tendency to drive the chisel to move downward, so that the chisel can hit the welded plate. After continuous impact, the two welded plates are separated;

[0019] Step 4: After the panels are separated, the operator observes the welding fusion of the welds on the panels to be tested and draws a conclusion.

[0020] In step 3, the falling height of the slide hammer is from low to high from the height of the impact block.

[0021] The advantages of the present invention are:

[0022] The invention discloses a chisel inspection tool for resistance welding points. Through the coordinated use of an impact mechanism and a chisel, two plates that have been welded can be classified, which is convenient for personnel to observe welding fusion, thereby realizing the inspection of welding quality. The impact mechanism and the chisel of the invention are connected together, avoiding the problem of easy loss of a traditional hammer and chisel that are placed separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following is a brief description of the contents expressed in the drawings of the present specification and the marks in the drawings:

[0024] Figure 1 It is an indication diagram of the present invention.

[0025] Figure 2 It is a stereogram of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure when the present invention is used.

[0027] Figure 4 It is a state diagram of the chisel in the present invention when in use.

[0028] Figure 5 It is a schematic diagram of the structure of the clamping block in the present invention.

[0029] Figure 6 It is a schematic diagram of the optimized structure in the present invention.

[0030] Figure 7 It is a schematic diagram of the structure when a lateral limiting plate is added to the end of the chisel in the present invention.

[0031] The marks in the above figure are:

[0032] 1. Slide rod, 2. Slide hammer, 3. Chisel, 4. Clamping block, 5. Limit nut, 6. Plate, 7. Impact block. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention will be further explained in detail below by describing the optimal embodiment with reference to the accompanying drawings.

[0034] A chisel inspection tool for resistance welding spots comprises a chisel 3; the chisel 3 is connected to an impact mechanism, and the chisel 3 is connected to the impact mechanism; the present invention discloses a chisel inspection tool for resistance welding spots, through the coordinated use of the impact mechanism and the chisel 3, it is possible to classify two plates 6 that have been welded, so that it is convenient for personnel to observe the welding fusion, thereby realizing the inspection of welding quality; the impact mechanism and the chisel 3 of the present invention are connected together, avoiding the problem of easy loss of the traditional hammer and chisel 3 when placed separately; when used specifically, the chisel 3 can use the traditional chisel 3 structure, or can use other chisel 3 structures; it can be selected specifically according to needs; the impact mechanism can also be diverse, of course, a relatively simple impact mechanism can refer to the impact mechanism below.

[0035] Specifically, the impact mechanism described in the present invention includes a slide bar 1 connected to the chisel 3, and a slide hammer 2 is provided on the slide bar 1; an impact block 7 is provided on the slide bar 1, and the impact block 7 is located in the area between the chisel 3 and the slide hammer 2; the end of the slide bar 1 is connected to the chisel 3, and a slide hammer 2 is provided on the slide bar 1, and the slide hammer 2 is sleeved on the slide bar 1, and the impact block 7 is arranged on the slide bar 1, and the impact block 7 is fixedly connected to the slide bar 1; when in use, the slide hammer 2 can be manually pulled, the slide hammer 2 falls and hits the impact block 7, the impact block 7 drives the slide bar 1 to move downward, and the slide bar 1 also impacts the chisel 3, and when the present invention is in use, the end of the chisel 3 is at the fitting position of the two plates 6; when the slide hammer 2 falls, it can drive the chisel 3 to move downward, thereby realizing the separation of the two plates 6 after electric welding, thereby facilitating subsequent observation.

[0036] Preferably, the slide rod 1 in the present invention is provided with a placement groove, and the chisel 3 is connected to the slide rod 1 via the placement groove; the setting of the placement groove facilitates the connection between the chisel 3 and the slide rod 1, the placement groove is a threaded groove, and the end of the chisel 3 is provided with an external thread, and the chisel 3 is connected to the placement groove via the thread. This connection method facilitates the connection between the chisel 3 and the slide rod 1, and also facilitates subsequent replacement.

[0037] Preferably, the chisel 3 and the slide rod 1 in the present invention are also connected by a locking portion, and the locking portion also includes a clamping block 4 arranged at the end of the slide rod 1. The setting of the clamping block 4 has a wrapping effect on the connection between the chisel 3 and the slide rod 1, thereby better ensuring the stability of the connection between the chisel 3 and the slide rod 1; specifically, the clamping block 4 in the present invention includes an upper clamping block 41 and a lower clamping block 42; the upper clamping block 41 and the lower clamping block 42 are arranged relative to each other; in the present invention, the upper clamping block 41 and the lower clamping block 42 have a certain gap, and such a setting facilitates the insertion of the chisel 3 at the end of the slide rod 1. In addition, a locking nut is provided on the clamping block 4; the locking nut has a binding effect between the upper clamping block 41 and the lower clamping block 42, thereby being able to well ensure the stability of the connection between the chisel 3 and the slide rod 1.

[0038] In addition, as a preferred embodiment, the upper clamping block 41 of the present invention is provided with an upper positioning groove 411, the lower clamping block 42 is provided with a lower positioning groove 421, the outer side surface of the clamping block 4 is an inclined surface, and the clamping block 4 is a frustum-shaped structure; the locking nut is provided with a sleeve threaded hole, and the sleeve threaded hole is a frustum-shaped hole; such a setting makes the connection between the locking nut and the clamping block 4 more convenient; in addition, by continuously moving the locking nut on the clamping block 4, the locking effect of the clamping block 4 on the chisel 3 can be better guaranteed, thereby avoiding the chisel 3 from moving up and down.

[0039] Preferably, a limiting nut 5 is provided at one end of the slide rod 1 away from the chisel 3 in the present invention; the limiting nut 5 is connected to the slide rod 1 by a thread; the setting of the limiting nut 5 is to prevent the slide hammer 2 from detaching from the slide rod 1 when the slide hammer 2 is moved, thereby playing a protective role; in addition, the setting of the limiting nut 5 can limit the rising height of the slide hammer 2, thereby playing a restrictive role; a suitable rising height of the slide hammer 2 can be selected as needed to prevent the slide hammer 2 from falling too high and damaging the plate 6 to be separated.

[0040] Preferably, the slide hammer 2 in the present invention comprises a hammer body, and a through hole is provided on the hammer body; the inner diameter of the through hole is not less than the outer diameter of the slide rod 1; such a setting can avoid the influence of the slide rod 1 on the movement speed of the slide hammer 2.

[0041] Preferably, the hammer body of the present invention is in the shape of a waist drum; such a configuration is convenient for holding, and the specific structure is that the hammer body includes a base block, and limit blocks are provided at both ends of the base block, and the width of the limit blocks is greater than the width of the base block; such a configuration makes the hammer body present a structure with large ends and a relatively small middle, and such a configuration is convenient for holding; at the same time, when the user holds the hammer body, it prevents the fingers or hands from being squeezed by the hammer body and the limit nut 5 or the impact block 7.

[0042] A method for using a chisel inspection tool for a resistance welding spot, the method comprising the following steps:

[0043] Step 1: Assemble the chisel inspection tool;

[0044] Step 2: Place the top of the chisel 3 on the joint of the plate 6 to be separated;

[0045] Step 3: After step 2 is completed, keep the chisel inspection tool stable, push the slide hammer 2 to move up and down, and use the lower end of the slide hammer 2 to hit the impact block 7, so that the slide rod 1 has a tendency to drive the chisel 3 to move downward, so that the chisel 3 can hit the welded plate 6, and after continuous impact, the two welded plates 6 are separated;

[0046] Step 4: After the plate 6 is separated, the operator observes the welding fusion of the welding points 61 on the plate 6 to be tested, and draws a conclusion.

[0047] Preferably, in step 3 of the present invention, the falling height of the slide hammer 2 is from low to high from the height of the impact block 7; such operation method can make the force on the chisel 3 change from small to large, which can conveniently help the chisel 3 enter the fitting part of the plate 6; at the same time, avoid damage to the plate 6 caused by excessive impact force.

[0048] Preferably, a lateral limit plate is provided at the end of the chisel 3, and the lateral limit plate includes a transverse plate 37, and a longitudinal plate 39 is provided on the transverse plate 37, and the longitudinal plate 39 is connected to the transverse plate 37 through a connecting sleeve 38, and the longitudinal plate 39 can move on the transverse plate 37 through the connecting sleeve 38; by setting the lateral limit plate, the linearity of the movement of the chisel 3 can be ensured, and the chisel 3 can be avoided from being offset due to impact; the connecting sleeve 38 can be connected to the transverse plate 37 by bolts, and the transverse plate 37 is provided with a transverse waist groove 36 that can adjust the position of the longitudinal plate 39; at the same time, in order to ensure the guiding effect, the lower end surface of the longitudinal plate 39 is below the lower end surface of the end of the chisel 3.

[0049] Preferably, the chisel 3 in the present invention includes a chisel head 34, which is connected to the slide bar 1 through a support rod, and the support rod includes a longitudinal rod 31 and a transverse rod 32, wherein the longitudinal rod 31 and the transverse rod 32 are connected; the longitudinal rod 31 and the transverse rod 32 are movably linked, and the longitudinal rod 31 is connected to a tilting rod 33, wherein one end of the tilting rod 33 is connected to the longitudinal rod 31, and the other end is connected to the transverse rod 32; the tilting rod 33 is connected to the longitudinal rod 31 through a hinge, and a plurality of connecting holes 35 are provided on the transverse rod 32, and the tilting rod 33 is connected to any one of the connecting holes 35 on the transverse rod 32 through a latch. The transverse rod 32 is connected to the chisel head 34; in the present invention, the longitudinal rod 31, the transverse rod 32 and the inclined rod 33 form a triangular structure in the main view. Such an arrangement can control the different connection positions of the inclined rod 33 and the transverse rod 32, so that the chisel head 34 and the slide rod 1 have different arrangements, thereby increasing the versatility of the chisel 3; specifically, the connection method of the chisel head 34 and the transverse rod 32 can be a snap-on connection or a threaded connection, and the connection direction can be adjusted according to the above-mentioned position adjustment; the side panel can be rotatably connected to the transverse rod 32, as shown in the accompanying drawings.

[0050] Preferably, a support spring 8 is provided on the slide rod 1 in the present invention, one end of the support spring 8 is in contact with the upper end of the slide hammer, and the other end is connected to the limit nut. The setting of the support spring 8 not only has a buffering effect, but also can provide initial power when the slide hammer moves.

[0051] As a preferred embodiment, a limit assembly is provided on the slide bar, and the limit assembly includes an insertion groove 91 set on the slide bar 1, and an insertion column 9 is provided in the insertion groove 91. The setting of the limit assembly can cooperate with the support spring 8 to limit the slide hammer when the device is not in use, so as to facilitate the placement of the entire chiseling inspection tool, and also play a protective role to prevent the slide hammer from moving arbitrarily and causing squeezing injuries to the person who takes and puts it.

[0052] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. A chisel inspection tool for resistance welding joints, characterized in that: It comprises a chisel; the chisel is connected with an impact mechanism, and the chisel is connected with the impact mechanism; The impact mechanism comprises a slide bar connected to the chisel, and a slide hammer is arranged on the slide bar; an impact block is arranged on the slide bar, and the impact block is located in the area between the chisel and the slide hammer; A limit nut is provided at one end of the slide bar away from the chisel; the limit nut is connected to the slide bar through a thread; A support spring is provided on the slide rod, one end of the support spring is fitted with the upper end of the slide hammer, and the other end is connected to the limit nut; A limit assembly is provided on the slide bar, and the limit assembly includes a plug-in slot provided on the slide bar, and a plug-in column is provided in the plug-in slot; The chisel includes a chisel head, which is connected to the sliding rod through a supporting rod, and the supporting rod includes a longitudinal rod and a transverse rod, and the longitudinal rod and the transverse rod are connected; the longitudinal rod and the transverse rod are movably linked, and the longitudinal rod is connected to the tilting rod, one end of the tilting rod is connected to the longitudinal rod, and the other end is connected to the transverse rod; the tilting rod is connected to the longitudinal rod through a hinge, and a plurality of connecting holes are provided on the transverse rod, and the tilting rod is connected to any one of the connecting holes on the transverse rod through a pin, and the transverse rod is connected to the chisel head.

2. A chisel inspection tool for resistance welding joints according to claim 1, characterized in that: The slide bar is provided with a placement groove, and the chisel is connected to the slide bar through the placement groove.

3. A chisel inspection tool for resistance welding joints according to claim 1, characterized in that: The chisel and the slide rod are also connected by a locking portion, and the locking portion also includes a clamping block arranged at the end of the slide rod, and the clamping block includes an upper clamping block and a lower clamping block; the upper clamping block and the lower clamping block are arranged opposite to each other; and a locking nut is provided on the clamping block.

4. A chisel inspection tool for resistance welding joints according to claim 3, characterized in that: The upper clamping block is provided with an upper positioning groove, the lower clamping block is provided with a lower positioning groove, the outer side surface of the clamping block is an inclined surface, and the clamping block is a frustum-shaped structure; the locking nut is provided with a sleeve threaded hole, and the sleeve threaded hole is a frustum-shaped hole.

5. A chisel inspection tool for resistance welding joints according to claim 1, characterized in that: The slide hammer comprises a hammer body, and a through hole is arranged on the hammer body; the inner diameter of the through hole is not less than the outer diameter of the slide rod.

6. A chisel inspection tool for resistance welding joints according to claim 5, characterized in that: The hammer body is in the shape of a waist drum.

7. A method for using a chisel inspection tool for a resistance welding spot according to any one of claims 1 to 6, characterized in that: The method of use comprises the following steps: Step 1: Assemble the chisel inspection tool; Step 2: Place the top of the chisel on the joint of the panels to be separated; Step 3: After completing step 2, keep the chisel inspection tool stable, push the slide hammer up and down, and use the lower end of the slide hammer to hit the impact block, so that the slide bar has a tendency to drive the chisel to move downward, so that the chisel can hit the welded plate. After continuous impact, the two welded plates are separated; Step 4: After the panels are separated, the operator observes the welding fusion of the welds on the panels to be tested and draws a conclusion.

8. A chisel inspection tool for resistance welding points according to claim 7, characterized in that: In step 3, the falling height of the slide hammer is from low to high from the height of the impact block.

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