Tensile testing device for automobile fastener processing

Abstract

The utility model relates to the technical field of tensile testing, and particularly discloses a tensile testing device for automobile fastener processing, which comprises a bottom plate, a tensile assembly for tensile testing is arranged on the rear side of the top of the bottom plate, and a part placing assembly for placing a fastener is arranged in the middle of the top of the bottom plate. A clamping mechanism for clamping the end part of the fastener to assist the test is arranged above the part placing assembly; the part containing assembly comprises a part containing base rotationally installed in the middle of the top of the bottom plate, the bottom of the part containing base is connected with the power output end of a stepping motor, four part containing holes are formed in the part containing base, and inclined plates used for clamping fasteners are installed in the part containing holes. According to the utility model, when the upper group of fasteners are subjected to a tensile test, the lower group of fasteners can be placed in other part placing holes to be fixedly clamped, and the subsequent assembly and disassembly of the tool can be directly realized in the tensile test process, so that the time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the tensile test technical field especially is related to a kind of tensile testing device for automobile fastener processing. BACKGROUND

[0002] Fastener is the core element of connecting each component in automobile structure, and its strength directly determines the structural integrity of the vehicle. Therefore, tensile testing device is used to verify whether fastener will break or permanently deform under extreme load by simulating the tensile force under actual working conditions, to ensure that it can withstand various stresses in vehicle driving.

[0003] The clamping and fixing operation of traditional automobile fastener is relatively cumbersome, consumes manpower and has low operation efficiency.

[0004] The existing public technical solution, with publication number CN215525042U, discloses a tensile testing device for automobile fastener processing, which includes a U-shaped frame, a rotating motor output shaft penetrating a mounting plate connected with a rotating rod, a part placing assembly connected with the rotating rod, an adsorption assembly provided on the upper side of the U-shaped frame, a horizontal plate fixed on the inner side of the lower part of the U-shaped frame, three electric push rods symmetrically installed on the upper end of the horizontal plate, a rectangular plate fixed on the upper end of the electric push rod three, and a mechanical hand provided on the upper end of the rectangular plate. The fastener is fixed by the part placing assembly, adsorption assembly and mechanical hand, which reduces the labor cost and improves the automation degree.

[0005] In actual implementation, the above technical solution fixes the fastener by mechanical hand, which can only clamp one group of fasteners at the same time. In subsequent use, the previous group of fasteners needs to be disassembled before the next group of fasteners can be installed, which wastes time in this process. SUMMARY

[0006] The utility model aims to provide a tensile testing device for automobile fastener processing, which can place the next group of fasteners in other part placing holes for fixed clamping when the previous group of fasteners is being tested, directly realize the subsequent installation and disassembly of tooling in the tensile testing process, save time, and solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a tensile testing device for automobile fastener processing, including bottom plate, the top rear side of the bottom plate is provided with a tensile assembly for tensile test, and the middle of the top of the bottom plate is installed with a part placing assembly for placing fastener, the upper part of the part placing assembly is provided with a clamping mechanism for clamping the end of fastener to assist testing.

[0008] The part placing assembly comprises a part placing base rotatably installed in the middle of the top of the bottom plate, and the bottom of the part placing base is connected with the power output end of the stepping motor, the inside of the part placing base is provided with four part placing holes, and the inside of the part placing hole is provided with an inclined plate for clamping the fastener.

[0009] Preferably, a guide telescopic rod is connected between the part placing hole and the inclined plate, and the two ends of the guide telescopic rod are connected with the part placing hole and the inclined plate through a connecting pin.

[0010] Preferably, the outside of the guide telescopic rod is sleeved with a clamping spring, and the part placing hole is elastically connected with the inclined plate through the clamping spring.

[0011] Preferably, the inside of the inclined plate is movably connected with a limiting block, the bottom of the limiting block is fixed with a supporting rod penetrating through the part placing hole, and the bottom of the supporting rod is fixed with a lifting electric push rod.

[0012] Preferably, the stretching assembly comprises a supporting frame fixed on the top of the bottom plate on the rear side, the front end of the supporting frame is slidably connected with a lifting support, the connecting position of the lifting support and the supporting frame is provided with a lifting sliding groove, and a lifting sliding block is slidably connected in the inside of the lifting sliding groove.

[0013] Preferably, the stretching assembly further comprises a stretching motor fixed on the top of the supporting frame, the power output end of the stretching motor is fixed with a lifting lead screw, the lifting lead screw penetrates through the inside of the lifting sliding block, and the lifting sliding block is connected with the lifting lead screw through a lead sleeve.

[0014] Preferably, the clamping mechanism comprises a clamping electric push rod fixed on the outside of the lifting support, the telescopic end of the clamping electric push rod is fixed with a clamping plate, the surface of the clamping plate is movably connected with an arc-shaped plate, the connecting position of the arc-shaped plate and the clamping plate is provided with a connecting clamping groove, and a connecting clamping block fixed on the surface of the arc-shaped plate is clamped in the inside of the connecting clamping groove.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. Through the part placing assembly, a plurality of fasteners can be sequentially installed in the part placing holes, the part placing base can be driven to rotate by the stepping motor, the fastener to be detected can be moved below the clamping mechanism, and then the stretching assembly can be used for stretching test, when the upper group of fasteners is tested, the lower group of fasteners can be placed in other part placing holes for clamping, and the subsequent installation and disassembly tooling can be directly realized during the stretching test, thereby saving time.

[0017] 2. Through the clamping mechanism, the arc-shaped plate can be separated from the connecting clamping block and the connecting clamping groove, so that the arc-shaped plate can be conveniently replaced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Fig. 1 It is a whole structure view of the present application;

[0020] Fig. 2 It is a structure schematic view of the clamping mechanism of the present application;

[0021] Fig. 3 It is a half cut structure schematic view of the part placing base of the present application.

[0022] Explanation of reference signs:

[0023] 1, bottom plate; 2, stretching assembly; 201, support frame; 202, stretching motor; 203, lifting screw; 204, lifting sliding block; 205, lifting support; 206, lifting sliding groove; 3, clamping mechanism; 301, clamping electric push rod; 302, clamping plate; 303, connecting clamping groove; 304, connecting clamping block; 305, arc plate; 4, part placing assembly; 401, part placing base; 402, part placing hole; 403, inclined plate; 404, support rod; 405, lifting electric push rod; 406, stepping motor; 407, limiting block; 408, guide telescopic rod; 409, clamping spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0025] The present application provides a technical solution:

[0026] Please refer to Figs. 1-3 A stretching test device for automobile fastener machining, comprising a bottom plate 1, a stretching assembly 2 for stretching test is arranged on the top rear side of the bottom plate 1, and a part placing assembly 4 for placing fasteners is installed on the top middle of the bottom plate 1, and a clamping mechanism 3 for clamping the end of the fastener to assist in testing is arranged above the part placing assembly 4.

[0027] The part placing assembly 4 comprises a part placing base 401 rotatably installed in the middle of the top of the base plate 1, and the bottom of the part placing base 401 is connected with the power output end of the stepping motor 406, the inside of the part placing base 401 is provided with four part placing holes 402, and the inside of the part placing hole 402 is installed with an inclined plate 403 for clamping the fastener.

[0028] The part placing hole 402 and the inclined plate 403 are connected with a guide telescopic rod 408, and the two ends of the guide telescopic rod 408 are connected with the part placing hole 402 and the inclined plate 403 through a connecting pin, the outside of the guide telescopic rod 408 is sleeved with a clamping spring 409, and the part placing hole 402 is elastically connected with the inclined plate 403 through the clamping spring 409, the inside of the inclined plate 403 is movably connected with a limiting block 407, and the bottom of the limiting block 407 is fixed with a supporting rod 404 penetrating through the part placing hole 402, and the bottom of the supporting rod 404 is fixed with a lifting electric push rod 405.

[0029] By adopting the above technical scheme, it should be noted that when the two ends of the guide telescopic rod 408 are connected with the part placing hole 402 and the inclined plate 403, the connecting end is movably connected through a pin shaft, that is, the guide telescopic rod 408 can change the angle with the movement of the inclined plate 403, which is the common connection mode of the guide telescopic rod 408, and will not be described here;

[0030] A plurality of fasteners can be sequentially installed in the part placing hole 402, the stepping motor 406 can drive the part placing base 401 to rotate, and after the fastener to be detected moves to the lower side of the clamping mechanism 3, the stretching assembly 2 can be used for stretching test, and when the upper group of fasteners is tested, the lower group of fasteners can be placed in other part placing holes 402 for fixed clamping, and the subsequent installation and disassembly tooling is directly realized during the stretching test process, which saves time, and in specific operation, the fastener is inserted into the inside of the part placing hole 402, the lifting electric push rod 405 moves downward, the limiting block 407 on the supporting rod 404 is pulled down, when the limiting block 407 is located in the inside of the inclined plate 403, the inclined plate 403 moves outward, extruding the guide telescopic rod 408 and the clamping spring 409, and when the inclined plate 403 moves inward, the inclined plate 403 moves to the direction close to the axis of the part placing hole 402 under the elastic action of the guide telescopic rod 408 and the clamping spring 409, and the multi-petal inclined plate 403 clamps and positions the fastener.

[0031] Specifically, as Fig. 1 and Fig. 2As shown, the stretching assembly 2 comprises a support frame 201 fixed on the top of the bottom plate 1 at the rear side, and the front end of the support frame 201 is slidingly connected with a lifting support 205, the connecting part of the lifting support 205 and the support frame 201 is provided with a lifting sliding groove 206, and a lifting sliding block 204 slidingly connected inside the lifting sliding groove 206, the stretching assembly 2 further comprises a stretching motor 202 fixed on the top of the support frame 201, the power output end of the stretching motor 202 is fixed with a lifting lead screw 203, and the lifting lead screw 203 penetrates the inside of the lifting sliding block 204, and the lifting sliding block 204 and the lifting lead screw 203 are connected through a lead sleeve.

[0032] The clamping mechanism 3 comprises a clamping electric push rod 301 fixed outside the lifting support 205, the telescopic end of the clamping electric push rod 301 is fixed with a clamping plate 302, and the surface of the clamping plate 302 is movably connected with an arc-shaped plate 305, the connecting part of the arc-shaped plate 305 and the clamping plate 302 is provided with a connecting clamping groove 303, and the inside of the connecting clamping groove 303 is clamped with a connecting clamping block 304 fixed on the surface of the arc-shaped plate 305.

[0033] By adopting the above technical scheme, after the fastener moves to the lower side of the clamping mechanism 3, the stretching motor 202 drives the lifting lead screw 203 to rotate, the lead sleeve on the lifting lead screw 203 can drive the lifting sliding block 204 to slide in the lifting sliding groove 206, drive the lifting support 205 to move downward, the lifting support 205 approaches the part placing base 401, and the clamping electric push rod 301 is started, the clamping electric push rod 301 pushes the clamping plate 302 to move inward, the arc-shaped plate 305 and the end part of the fastener approach each other, until the arc-shaped plate 305 is clamped, then the lead sleeve on the lifting lead screw 203 can drive the lifting sliding block 204 to slide upward in the lifting sliding groove 206, the fastener is stretched, and the arc-shaped plate 305 can be separated from each other through the connecting clamping block 304 and the connecting clamping groove 303, so as to facilitate the replacement of the arc-shaped plate 305, in order to facilitate the positioning of the arc-shaped plate 305, screws can be installed on the connecting clamping block 304.

[0034] Working principle: the fastener is inserted into the part placing hole 402, the lifting electric push rod 405 moves downward, the limiting block 407 on the supporting rod 404 is pulled to slide downward, when the limiting block 407 is located inside the inclined plate 403, the inclined plate 403 moves outward, extruding the guiding telescopic rod 408 and the clamping spring 409, when the inclined plate 403 moves inward, under the elastic action of the guiding telescopic rod 408 and the clamping spring 409, the inclined plate 403 moves to the direction close to the axis of the part placing hole 402, the multi-petal inclined plate 403 clamps and positions the fastener, after the fastener moves to the lower part of the clamping mechanism 3, the stretching motor 202 drives the lifting screw 203 to rotate, the wire sleeve on the lifting screw 203 can drive the lifting sliding block 204 to slide in the lifting sliding groove 206, driving the lifting support 205 to move downward, the lifting support 205 approaches the part placing base 401, and the clamping electric push rod 301 is started, the clamping electric push rod 301 pushes the clamping plate 302 to move inward, making the arc-shaped plate 305 close to the end part of the fastener, until the arc-shaped plate 305 is clamped, then the wire sleeve on the lifting screw 203 can drive the lifting sliding block 204 to slide upward in the lifting sliding groove 206, stretching the fastener.

[0035] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A tensile testing device for automotive fastener processing, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a tensile component (2) for tensile testing on the rear side of the top, and a part placement component (4) for placing fasteners is installed in the middle of the top of the bottom plate (1). A clamping mechanism (3) for clamping the end of the fastener for auxiliary testing is provided above the part placement component (4). The parts placement assembly (4) includes a parts placement base (401) rotatably mounted on the top center of the base plate (1), and the bottom of the parts placement base (401) is connected to the power output end of a stepper motor (406). The parts placement base (401) has four parts placement holes (402) inside, and the parts placement holes (402) are equipped with inclined plates (403) for clamping fasteners.

2. The tensile testing device for automotive fastener processing according to claim 1, characterized in that: A guide telescopic rod (408) is connected between the part placement hole (402) and the inclined plate (403), and the two ends of the guide telescopic rod (408) are connected to the part placement hole (402) and the inclined plate (403) through connecting pins.

3. The tensile testing device for automotive fastener processing according to claim 2, characterized in that: The guide telescopic rod (408) is fitted with a clamping spring (409), and the part placement hole (402) is elastically connected to the inclined plate (403) through the clamping spring (409).

4. The tensile testing device for automotive fastener processing according to claim 3, characterized in that: The inclined plate (403) is internally connected to a limiting block (407), and the bottom of the limiting block (407) is fixed with a support rod (404) that passes through the part placement hole (402). The bottom of the support rod (404) is fixed with a lifting electric push rod (405).

5. The tensile testing device for automotive fastener processing according to claim 4, characterized in that: The tensioning assembly (2) includes a support frame (201) fixed to the rear side of the top of the base plate (1), and a lifting bracket (205) is slidably connected to the front end of the support frame (201). A lifting groove (206) is provided at the connection between the lifting bracket (205) and the support frame (201), and a lifting slider (204) is slidably connected inside the lifting groove (206).

6. The tensile testing device for automotive fastener processing according to claim 5, characterized in that: The tensioning assembly (2) also includes a tensioning motor (202) fixed on the top of the support frame (201). The power output end of the tensioning motor (202) is fixed with a lifting screw (203), and the lifting screw (203) passes through the interior of the lifting slider (204). The lifting slider (204) and the lifting screw (203) are connected by a screw sleeve.

7. The tensile testing device for automotive fastener processing according to claim 6, characterized in that: The clamping mechanism (3) includes a clamping electric push rod (301) fixed on the outside of the lifting bracket (205). The telescopic end of the clamping electric push rod (301) is fixed with a clamping plate (302), and an arc plate (305) is movably connected to the surface of the clamping plate (302). A connecting slot (303) is provided at the connection between the arc plate (305) and the clamping plate (302), and a connecting block (304) fixed to the surface of the arc plate (305) is engaged inside the connecting slot (303).

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