Exhaust pipe outer circle centering and profile detection device

Abstract

The application discloses a kind of automobile exhaust pipe outer circle centering and profile detection device, it is related to the outer circle centering and profile detection technical field of automobile exhaust pipe, including bottom plate, outer circle centering device, profile detection block and press clamp, outer circle centering device includes V-shaped wedge, sliding seat, V-shaped centering clamp, sliding block, slide rail, slide rail seat, connecting rod and runner, V-shaped centering clamp is fixed on sliding seat, sliding seat is connected with sliding block, sliding block can slide along slide rail, runner is sleeved on connecting rod, the inside of runner, the outside of connecting rod is all provided with the thread of mutual cooperation, the bottom of connecting rod is fixedly connected with the bottom of V-shaped wedge, and the top of V-shaped wedge is respectively movably embedded in first sliding seat, second sliding seat.The application is fitted with the axis of automobile exhaust pipe outer circle by two mutually symmetrical first V-shaped centering clamp and second V-shaped centering clamp simultaneously to center clamping, and realizes the clamping and opening of first V-shaped centering clamp and second V-shaped centering clamp under the push-pull action of V-shaped wedge.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of outer circle centering and profile detection of automobile exhaust pipes, and particularly relates to an outer circle centering and profile detection device for automobile exhaust pipes. BACKGROUND

[0002] Bending of the automobile exhaust pipe is a space angle instead of a plane angle, and if there is a gap in positioning of a detection tool or the positioning is not accurate, a large deviation of the detected profile will be caused, and finally the result is affected. In order to ensure the repeatability of detection, a reliable positioning device needs to be designed for positioning.

[0003] For development of the axial center positioning detection tool, currently detection tool manufacturers adopt single-layer V-shaped blocks, single-layer V-shaped rollers and steel ball expansion sleeves. The single-layer V-shaped support is affected by the diameter of the product, and the diameter size will cause the axial center line of the product to deviate. The detection tool measurement result is greatly different from the three-coordinate measurement result, and unqualified products may be delivered to customers or qualified products may be determined as scrap. Since the product is a space structure and the end face needs to be detected, the precise steel ball expansion sleeve cannot be realized. In order to solve the accuracy of the outer circle axial center positioning and avoid the false judgment of the detection tool, the outer circle centering and profile detection device for the automobile exhaust pipe is designed, the axial center line of the outer circle of the automobile exhaust pipe is clamped to the center by two mutually symmetrical first V-shaped centering clamps and second V-shaped centering clamps, and the clamping and opening of the first V-shaped centering clamps and the second V-shaped centering clamps are realized under the pushing and pulling action of the V-shaped wedge. SUMMARY

[0004] The application aims to overcome the defects of the prior art and provide the outer circle centering and profile detection device for the automobile exhaust pipe. The outer circle centering device clamps the axial center line of the outer circle of the automobile exhaust pipe to the center by two mutually symmetrical first V-shaped centering clamps and second V-shaped centering clamps, and realizes the clamping and opening of the first V-shaped centering clamps and the second V-shaped centering clamps under the pushing and pulling action of the V-shaped wedge.

[0005] The automobile exhaust pipe outer circle centering and profile detection device comprises a base plate, an outer circle centering device, a profile detection block and a pressing clamp for fixing the automobile exhaust pipe, the outer circle centering device, the profile detection block and the pressing clamp are arranged on the base plate, the outer circle centering device comprises a V-shaped wedge, a sliding seat, a V-shaped centering clamp, a sliding block, a sliding rail, a sliding rail seat, a connecting rod fixing seat, a connecting rod and a rotating wheel, the sliding seat comprises a first sliding seat and a second sliding seat, the V-shaped centering clamp comprises a first V-shaped centering clamp and a second V-shaped centering clamp, the first V-shaped centering clamp and the second V-shaped centering clamp are fixed on the first sliding seat and the second sliding seat respectively, the sliding block comprises a first sliding block and a second sliding block, the first sliding seat is fixedly connected with the first sliding block, the second sliding seat is fixedly connected with the second sliding block, the first sliding block and the second sliding block can slide along the sliding rail, the sliding rail is fixed on the sliding rail seat, and the sliding rail seat is fixed on the base plate.

[0006] The rotating wheel is sleeved on the connecting rod, the inner side of the rotating wheel and the outer side of the connecting rod are provided with matched threads, the bottom of the connecting rod is fixedly connected with the bottom of the V-shaped wedge, the top of the V-shaped wedge is movably embedded in the first sliding seat and the second sliding seat, the connecting rod fixing seat is arranged between the rotating wheel and the V-shaped wedge, the connecting rod penetrates through the upper part of the connecting rod fixing seat and is movably connected with the connecting rod fixing seat, and the bottom of the connecting rod fixing seat is fixedly connected with the base plate.

[0007] The first sliding block comprises a first left sliding block and a first right sliding block, the second sliding block comprises a second left sliding block and a second right sliding block, the first left sliding block and the first right sliding block are arranged on the left side and the right side of the first sliding seat respectively and are fixedly connected with the left lower part of the first sliding seat and the right lower part of the first sliding seat respectively, and the second left sliding block and the second right sliding block are arranged on the left side and the right side of the second sliding seat respectively and are fixedly connected with the left lower part of the second sliding seat and the right lower part of the second sliding seat respectively.

[0008] The side surface of the sliding rail seat is provided with a limiting block to prevent the first sliding block and the second sliding block from sliding out of the sliding rail seat.

[0009] The inner side of the first V-shaped centering clamp is provided with a first positioning block, and the inner side of the second V-shaped centering clamp is provided with a second positioning block.

[0010] The first positioning block comprises a first upper positioning block and a first lower positioning block, and the first upper positioning block and the first lower positioning block are arranged at the upper portion and the lower portion of the inner side of the first V-shaped centering clamp respectively, the second positioning block comprises a second upper positioning block and a second lower positioning block, and the second upper positioning block and the second lower positioning block are arranged at the upper portion and the lower portion of the inner side of the second V-shaped centering clamp respectively, and the first upper positioning block, the first lower positioning block, the second upper positioning block and the second lower positioning block are used for limiting the left upper corner, the left lower corner, the right upper corner and the right lower corner of the profile of the automobile exhaust pipe respectively.

[0011] The outer circle centering device comprises a first outer circle centering device and a second outer circle centering device, and the first outer circle centering device and the second outer circle centering device are used for fixing the head and tail ends of the automobile exhaust pipe.

[0012] The profile detection block comprises an upper profile detection block for detecting the top profile, a lower profile detection block for detecting the bottom profile and a side profile detection block for detecting the side profile.

[0013] The upper profile detection block comprises a first upper profile detection block and a second upper profile detection block, the lower profile detection block comprises a first lower profile detection block, and the side profile detection block comprises a first side profile detection block.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The outer circle centering device of the present application clamps the axial center line of the outer circle of the automobile exhaust pipe through two mutually symmetrical first V-shaped centering clamps and second V-shaped centering clamps, and realizes the clamping and opening of the first V-shaped centering clamps and the second V-shaped centering clamps under the pushing and pulling action of the V-shaped wedge (i.e. the insertion or separation of the V-shaped wedge into or from the first slide and the second slide).

[0016] 2. The present application realizes the accurate positioning of the outer circle of the automobile exhaust pipe, provides a reliable positioning structure for the subsequent positioning of the outer circle of the automobile exhaust pipe, ensures the repeat accuracy, and also facilitates the profile detection of the automobile exhaust pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present application;

[0018] Figure 2 It is a top view structural schematic diagram of Figure 1 ;

[0019] Figure 3 It is a left view structural schematic diagram of Figure 1 ;

[0020] Figure 4 It is a structural schematic diagram of the outer circle centering device;

[0021] Figure 5 It is a structural schematic diagram of the outer circle centering device;Figure 4 a top view structural schematic diagram of the application;

[0022] Figure 6 is Figure 4 a left view structural schematic diagram of the application;

[0023] Figure 7 is a structural schematic diagram of the application when the first slide and the second slide are brought together by a V-shaped wedge;

[0024] Figure 8 is a structural schematic diagram of the application when the first slide and the second slide are separated by a V-shaped wedge;

[0025] In the figure: 1-first outer circle centering device, 2-first upper die surface detection block, 3-pressing clamp, 4-second upper die surface detection block, 5-first side die surface detection block, 6-second outer circle centering device, 7-first lower die surface detection block, 8-bottom plate, 19-pulley, 20-linkage, 21-linkage fixed seat, 22-V-shaped wedge, 25-slide rail, 26-slide rail seat, 27-limiting block, 31-first slide, 32-second slide, 33-first V-shaped centering clamp, 34-second V-shaped centering clamp, 35-first left sliding block, 36-first right sliding block, 37-second left sliding block, 38-second right sliding block, 41-first upper positioning block, 42-first lower positioning block, 43-second upper positioning block, 44-second lower positioning block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0027] The present application will be further described below in conjunction with the drawings and specific embodiments.

[0028] Embodiment 1:

[0029] As Figures 1 to 8As shown, an automobile exhaust pipe outer circle centering and profile detection device, the device includes a base plate 8, outer circle centering device, profile detection block and for fixing automobile exhaust pipe clamp 3, outer circle centering device, profile detection block and clamp 3 are respectively arranged on the base plate 8, outer circle centering device includes V type beveling wedge 22, sliding seat, V type centering clamp, sliding block, slide rail 25, slide rail seat 26, connecting rod fixed seat 21, connecting rod 20 and runner 19, sliding seat includes first sliding seat 31 and second sliding seat 32, V type centering clamp includes symmetrical first V type centering clamp 33 and second V type centering clamp 34, first V type centering clamp 33, second V type centering clamp 34 are respectively fixed on first sliding seat 31, second sliding seat 32, sliding block includes first sliding block and second sliding block, first sliding seat 31 and first sliding block fixed connection, second sliding seat 32 and second sliding block fixed connection, first sliding block and second sliding block can slide along the slide rail 25, slide rail 25 is fixed on the slide rail seat 26, slide rail seat 26 is fixed on the base plate 8.

[0030] The rotating wheel 19 is sleeved on the connecting rod 20, the inner side of the rotating wheel 19 and the outer side of the connecting rod 20 are provided with threads matched with each other, the bottom of the connecting rod 20 is fixedly connected with the bottom of the V-shaped wedge 22, the top of the V-shaped wedge 22 is movably embedded in the first sliding seat 31 and the second sliding seat 32 respectively, the connecting rod fixed seat 21 is arranged between the rotating wheel 19 and the V-shaped wedge 22, the connecting rod 20 penetrates through the upper part of the connecting rod fixed seat 21 and is movably connected with the connecting rod fixed seat 21, the bottom of the connecting rod fixed seat 21 is fixedly connected with the bottom plate 8, when the rotating wheel 19 rotates clockwise or counterclockwise, the connecting rod 20 is driven to rotate in the opposite direction by the threads on the inner side of the rotating wheel 19, moves forward and backward along the central axis of the rotating wheel 19, the connecting rod 20 drives the V-shaped wedge 22 to insert into or separate from the first sliding seat 31 and the second sliding seat 32, so as to drive the first sliding seat 31 and the second sliding seat 32 to approach each other or separate from each other, the first V-shaped centering clamp 33 and the second V-shaped centering clamp 34 are driven by the first sliding seat 31 and the second sliding seat 32 to approach each other to clamp the automobile exhaust pipe or separate to loosen the automobile exhaust pipe. The automobile exhaust pipe is inserted through the center of the first V-shaped centering clamp 33 and the second V-shaped centering clamp 34, the rotating wheel 19 is rotated clockwise, the connecting rod 20 is rotated counterclockwise, moves backward along the central axis of the rotating wheel 19, and drags the V-shaped wedge 22 to move backward at the same time, the V-shaped wedge 22 is inserted into the first sliding seat 31 and the second sliding seat 32, because the vertical distance between the V-shaped wedge 22 and the sliding seat is shortened, the horizontal distance between the V-shaped wedge 22 and the first sliding seat 31 and the second sliding seat 32 respectively is also shortened accordingly, so as to achieve the purpose that the first sliding seat 31 and the second sliding seat 32 approach each other, so as to achieve the purpose that the first V-shaped centering clamp 33 and the second V-shaped centering clamp 34 approach each other to clamp the automobile exhaust pipe, and the outer circle positioning of the automobile exhaust pipe is realized at the same time, after the automobile exhaust pipe is clamped, the pressing clamp 3 is pressed downward to fix the automobile exhaust pipe, the closed profile detection block is closed, the profile of the automobile exhaust pipe is detected by using the profile gauge, if the profile gauge can pass, the automobile exhaust pipe is qualified, otherwise it is unqualified; after the detection is completed, the rotating wheel 19 is rotated counterclockwise, because the threads on the inner side of the rotating wheel 19 are matched with the threads on the outer side of the connecting rod 20, the connecting rod 20 is rotated clockwise, moves forward along the central axis of the rotating wheel 19, and drags the V-shaped wedge 22 to move forward at the same time, the V-shaped wedge 22 is separated from the first sliding seat 31 and the second sliding seat 32, because the vertical distance between the V-shaped wedge 22 and the sliding seat is lengthened, the horizontal distance between the V-shaped wedge 22 and the first sliding seat 31 and the second sliding seat 32 respectively is also lengthened accordingly, so as to achieve the purpose that the first sliding seat 31 and the second sliding seat 32 are separated, so as to achieve the purpose that the first V-shaped centering clamp 33 and the second V-shaped centering clamp 34 are separated to loosen the automobile exhaust pipe, then the pressing clamp 3 is lifted upward, and the automobile exhaust pipe after the detection is completed is taken out.

[0031] Example 2:

[0032] On the basis of embodiment 1, the first slider and the second slider are improved in this embodiment, the first slider includes a first left slider 35 and a first right slider 36, and the second slider includes a second left slider 37 and a second right slider 38, the first left slider 35 and the first right slider 36 are respectively arranged on the left side and the right side of the first slide base 31, and are respectively fixedly connected with the left lower part of the first slide base 31 and the right lower part of the first slide base 31, and the second left slider 37 and the second right slider 38 are respectively arranged on the left side and the right side of the second slide base 32, and are respectively fixedly connected with the left lower part of the second slide base 32 and the right lower part of the second slide base 32. When the first slide base 31 and the second slide base 32 are close to each other or separated, the first slider and the second slider slide along the slide rail 25.

[0033] Embodiment 3:

[0034] On the basis of embodiment 1 or embodiment 2, the slide rail seat 26 is improved in this embodiment, and the right side of the slide rail seat 26 is provided with a limiting block 27 to prevent the first slider and the second slider from sliding out of the slide rail seat 26.

[0035] The inner side of the first V-shaped centering clamp 33 is provided with a first positioning block, and the inner side of the second V-shaped centering clamp 34 is provided with a second positioning block.

[0036] The first positioning block includes a first upper positioning block 41 and a first lower positioning block 42, and the first upper positioning block 41 and the first lower positioning block 42 are respectively arranged on the upper part and the lower part of the inner side of the first V-shaped centering clamp 33, and the second positioning block includes a second upper positioning block 43 and a second lower positioning block 44, and the second upper positioning block 43 and the second lower positioning block 44 are respectively arranged on the upper part and the lower part of the inner side of the second V-shaped centering clamp 34. The first upper positioning block 41, the first lower positioning block 42, the second upper positioning block 43 and the second lower positioning block 44 respectively limit the left upper corner, the left lower corner, the right upper corner and the right lower corner of the automobile exhaust pipe profile.

[0037] Embodiment 4:

[0038] On the basis of embodiments 1-3, the profile detection block and the outer circle centering device are improved in this embodiment, the outer circle centering device includes a first outer circle centering device 1 and a second outer circle centering device 6, the first outer circle centering device 1 and the second outer circle centering device 6 are the same structure, which are two groups of V-shaped wedges 22, slide bases, V-shaped centering clamps, sliders, slide rails 25, slide rail seats 26, connecting rods 20 and rotating wheels 19, and the connection mode is also the same, which is consistent with the connection mode of the outer circle centering device of embodiment 1, the first outer circle centering device 1 and the second outer circle centering device 6 are respectively used for fixing the head and tail ends of the automobile exhaust pipe, so as to realize the outer circle positioning of the head and tail ends of the automobile exhaust pipe.

[0039] The profile detection blocks include upper profile detection blocks for detecting a top profile, lower profile detection blocks for detecting a bottom profile, and side profile detection blocks for detecting a side profile.

[0040] The upper profile detection blocks include first upper profile detection blocks 2 and second upper profile detection blocks 4, the lower profile detection blocks include first lower profile detection blocks 7, and the side profile detection blocks include first side profile detection blocks 5.

[0041] The above description is merely that of the preferred embodiments of the application, and it is understood that the application is not limited to the forms described herein, but is susceptible to various modifications, adaptations, and variations without departing from the spirit and scope of the application as set forth in the claims.

Claims

1. A device for centering the outer circle and detecting the profile of an automotive exhaust pipe, characterized in that: The utility model relates to a kind of automobile exhaust pipe fixing device, including bottom plate (8), outer circle centering device, profile detection block and the pressure clamp (3) for fixing automobile exhaust pipe, the outer circle centering device, profile detection block and pressure clamp (3) are respectively arranged on bottom plate (8), the outer circle centering device includes V type bevel wedge (22), sliding seat, V type centering clamp, sliding block, slide rail (25), slide rail seat (26), connecting rod fixed seat (21), connecting rod (20) and runner (19), the sliding seat includes first sliding seat (31) and second sliding seat (32), the V type centering clamp includes first V type centering clamp (33) and second V type centering clamp (34), the first V type centering clamp (33), second V type centering clamp (34) are respectively fixed on first sliding seat (31), second sliding seat (32), the sliding block includes first sliding block and second sliding block, first sliding seat (31) is fixedly connected with first sliding block, second sliding seat (32) is fixedly connected with second sliding block, first sliding block and second sliding block can slide along slide rail (25), slide rail (25) is fixed on slide rail seat (26), and slide rail seat (26) is fixed on bottom plate (8); The runner (19) is sleeved on the connecting rod (20), and the inner side of the runner (19) and the outer side of the connecting rod (20) are provided with threads matched with each other, the bottom of the connecting rod (20) is fixedly connected with the bottom of the V type bevel wedge (22), the top of the V type bevel wedge (22) is movably embedded in the first sliding seat (31) and the second sliding seat (32) at two ends, respectively, the connecting rod fixed seat (21) is arranged between the runner (19) and the V type bevel wedge (22), the connecting rod (20) penetrates through the upper portion of the connecting rod fixed seat (21) and is movably connected with the connecting rod fixed seat (21), and the bottom of the connecting rod fixed seat (21) is fixedly connected with the bottom plate (8), when the runner (19) rotates clockwise or counterclockwise, the connecting rod (20) is driven to rotate in the opposite direction by the threads on the inner side of the runner (19), moves forward and backward along the central axis of the runner (19), the connecting rod (20) drives the V type bevel wedge (22) to insert into or separate from the first sliding seat (31) and the second sliding seat (32), so as to drive the first sliding seat (31) and the second sliding seat (32) to approach each other or separate, and the first V type centering clamp (33) and the second V type centering clamp (34) are driven by the first sliding seat (31) and the second sliding seat (32) to approach each other to clamp the automobile exhaust pipe or separate to loosen the automobile exhaust pipe.

2. The automotive exhaust pipe outer circle centering and profile detection device according to claim 1, characterized in that: The first sliding block includes first left sliding block (35) and first right sliding block (36), the second sliding block includes second left sliding block (37) and second right sliding block (38), the first left sliding block (35) and the first right sliding block (36) are arranged on the left side and the right side of the first sliding seat (31) respectively, and are fixedly connected with the left lower portion of the first sliding seat (31) and the right lower portion of the first sliding seat (31) respectively, the second left sliding block (37) and the second right sliding block (38) are arranged on the left side and the right side of the second sliding seat (32) respectively, and are fixedly connected with the left lower portion of the second sliding seat (32) and the right lower portion of the second sliding seat (32) respectively.

3. The automotive exhaust pipe outer circle centering and profile detection device according to claim 1, characterized in that: The side surface of the slide rail seat (26) is provided with a limiting block (27).

4. The automotive exhaust pipe outer circle centering and profile detection device according to claim 1, characterized in that: The inner side of the first V-shaped centering clamp (33) is provided with a first positioning block, and the inner side of the second V-shaped centering clamp (34) is provided with a second positioning block.

5. The automotive exhaust pipe outer circle centering and profile detection device according to claim 4, characterized in that: The first positioning block comprises a first upper positioning block (41) and a first lower positioning block (42), and the first upper positioning block (41) and the first lower positioning block (42) are arranged at the upper portion and the lower portion of the inner side of the first V-shaped centering clamp (33) respectively, and the second positioning block comprises a second upper positioning block (43) and a second lower positioning block (44), and the second upper positioning block (43) and the second lower positioning block (44) are arranged at the upper portion and the lower portion of the inner side of the second V-shaped centering clamp (34) respectively.

6. The automotive exhaust pipe outer circle centering and profile detection device according to claim 1, characterized in that: The outer circle centering device comprises a first outer circle centering device (1) and a second outer circle centering device (6), and the first outer circle centering device (1) and the second outer circle centering device (6) are respectively used for fixing the head and tail ends of the automobile exhaust pipe.

7. The automotive exhaust pipe outer circle centering and profile detection device according to claim 1, characterized in that: The profile detection block comprises an upper profile detection block for detecting a top profile, a lower profile detection block for detecting a bottom profile, and a side profile detection block for detecting a side profile.

8. The automotive exhaust pipe outer circle centering and profile detection device according to claim 7, characterized in that: The upper profile detection block comprises a first upper profile detection block (2) and a second upper profile detection block (4), the lower profile detection block comprises a first lower profile detection block (7), and the side profile detection block comprises a first side profile detection block (5).

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