CN210435611U

CN210435611U - Positioning and pressing adjustable mechanism for welding automobile silencing bag and tail pipe

Info

Publication number: CN210435611U
Application number: CN201921169963.9U
Authority: CN
Inventors: 孟文武; 沈佳红
Original assignee: Shanghai Aochen Robot Automation Co ltd
Current assignee: Shanghai Aochen Robot Automation Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-01
Anticipated expiration: 2029-07-24

Abstract

The utility model provides a car noise elimination package and tail pipe welded location compress tightly adjustable mechanism, its tail pipe clamping device sets up with noise elimination package rear end top tight device back-and-forth relative interval, the side that noise elimination package clamping device is located the position between these two devices is used for leaning on noise elimination package centre gripping in this position, noise elimination package front end dog is located tail pipe clamping device below and is used for leaning on noise elimination package front end, first drive arrangement connects noise elimination package rear end top tight device and is used for the back-and-forth movement the device, tail pipe clamping device is used for the centre gripping tail pipe and aims at the tail pipe jack of noise elimination package front end, second drive arrangement connects tail pipe clamping device and is used for the back-and-forth movement the device, tail pipe clamping device movable setting is on first unable adjustment base around, first unable adjustment base connects noise elimination package rear end top tight device through the distance restriction connecting rod. The utility model discloses can carry out accurate positioning and press from both sides tightly to silencing package and tail pipe welding, solve the unsafe difficulty of welding seam position location that silencing package tolerance is great to be brought.

Description

Positioning and pressing adjustable mechanism for welding automobile silencing bag and tail pipe

Technical Field

The utility model relates to a location compresses tightly adjustable mechanism technical field, in particular to automobile location compresses tightly adjustable mechanism technical field, specifically indicates a car noise elimination package and tail pipe welded location compress tightly adjustable mechanism.

Background

For an exhaust pipe of an automobile, a silencing bag is an important component, the size of the silencing bag is large, and the positioning tolerance is large, so that the length of a workpiece needs to be compensated for ensuring the position of a welding seam of the silencing bag and a tail pipe.

To address this problem, in actual production practice, it has been found that this problem can be best addressed by adjusting the amount of penetration of the tailpipe into the muffler package.

Therefore, the positioning and pressing adjustable mechanism for welding the automobile muffler package and the tail pipe needs to be provided, the positioning and pressing adjustable mechanism can accurately position and clamp the welding of the muffler package and the tail pipe, and the problem of inaccurate positioning of the welding seam caused by large tolerance of the muffler package is solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming among the above-mentioned prior art, an object of the utility model is to provide a car noise elimination package and tail pipe welded location compress tightly adjustable mechanism, and it can be accurate location and press from both sides tightly to noise elimination package and tail pipe welding, solves the great inaccurate difficulty in welding seam position location that brings of noise elimination package tolerance, is suitable for extensive popularization and application.

Another object of the utility model is to provide a car noise elimination package and tail pipe welded location compress tightly adjustable mechanism, its design benefit, the structure is succinct, and it is simple and convenient to make, and is with low costs, is suitable for extensive popularization and application.

In order to achieve the above object, the utility model provides an automobile noise elimination package and tail pipe welded location compress tightly adjustable mechanism which is characterized in that, including noise elimination package clamping device, noise elimination package front end dog, noise elimination package rear end jacking device, distance restriction connecting rod, tail pipe clamping device, first drive arrangement, second drive arrangement and first unable adjustment base, tail pipe clamping device with noise elimination package rear end jacking device is relative interval setting from front to back, noise elimination package clamping device is located tail pipe clamping device with the side of position between the noise elimination package rear end jacking device is used for with noise elimination package centre gripping in the position, noise elimination package front end dog is located tail pipe clamping device's below is used for leaning on the front end of noise elimination package, noise elimination package rear end jacking device is used for jacking from back to front tightly the rear end of noise elimination package, first drive arrangement connects noise elimination package rear end jacking device is used for the back-and-forth movement noise elimination package rear end jacking device The tail pipe clamping device is used for clamping a tail pipe and aligning to a tail pipe jack at the front end of the silencing bag, the second driving device is connected with the tail pipe clamping device and used for moving the tail pipe clamping device back and forth so as to control the insertion amount of the tail pipe in the tail pipe jack, the tail pipe clamping device is movably arranged on the first fixing base back and forth, the distance limiting connecting rod is arranged back and forth, and the first fixing base is connected with the rear end jacking device of the silencing bag through the distance limiting connecting rod.

Preferably, the silencing bag clamping device comprises a front bracket, a rear bracket and a top pressing device, the front bracket and the rear bracket are arranged below the position at intervals in a front-back mode and used for supporting the silencing bag, and the top pressing device is located on the side face of the position and extends to the position above and used for pressing the silencing bag from top to bottom.

Preferably, the top pressing device comprises a first pressing rod, a second pressing rod, a first pressing device, a second fixing base, a front pressing block and a rear pressing block, the front pressing block and the rear pressing block are arranged at intervals in the front-rear direction and are used for pressing the silencing bag from top to bottom, the first pressing rod is arranged in the front-rear direction, two ends of the first pressing rod are respectively connected with the front pressing block and the rear pressing block, the second fixing base is located on the side face of the position, the first pressing device is installed on the second fixing base, the second pressing rod is arranged in the left-right direction, and two ends of the second pressing rod are respectively connected with the middle of the first pressing rod and the first pressing device.

Preferably, the rear end jacking device of the silencing bag comprises a third fixed base, a first connecting piece and a rear end jacking pressing plate of the silencing bag, the rear end jacking pressing plate of the silencing bag is arranged on the left and right sides, one end of the rear end jacking pressing plate of the silencing bag and the tail pipe clamping device are arranged at intervals in a front-to-back mode and used for jacking the rear end of the silencing bag from back to front, the third fixed base is located on the side face of the position, the other end of the rear end jacking pressing plate of the silencing bag is connected with the third fixed base through the first connecting piece, the first driving device is connected with the third fixed base and used for moving the third fixed base back and forth, and the distance limiting connecting rod is connected with the third fixed base.

Preferably, the first connecting piece is an L-shaped connecting piece, the L-shaped connecting piece includes a horizontal plate piece and a vertical plate piece, the horizontal plate piece is arranged on the third fixing base, the lower end of the vertical plate piece is connected with one end of the horizontal plate piece, and the other end of the back end of the silencing bag is connected with the vertical plate piece.

Preferably, the tail pipe clamping device comprises a fourth fixed base, a second compressor, a second connecting piece, a third pressure rod, a clamping base, a U-shaped clamping part, a key block mounting seat, a first clamping key block, a second clamping key block, a third clamping key block, a fourth clamping key block and a fifth clamping key block;

the first clamping key block and the key block mounting seat are arranged on the clamping base, the key block mounting seat is positioned in front of the first clamping key block, the upper part of the key block mounting seat protrudes out of the first clamping key block, and the second clamping key block is arranged on the upper part of the key block mounting seat and is arranged towards the back;

the fourth fixing base is positioned in front of the clamping base and is connected with the clamping base through the second connecting piece, the second pressing device is installed on the fourth fixing base, and the third pressing rod is positioned above the first clamping key block and is connected with the second pressing device, so that the first part of the tail pipe is clamped among the first clamping key block, the second clamping key block and the third pressing rod;

the U-shaped clamping part is arranged on the clamping base in a left-right mode, the third clamping key block is arranged at the bottom of the U-shaped clamping part, the fourth clamping key block and the fifth clamping key block are oppositely arranged and are respectively arranged on the left side wall and the right side wall of the U-shaped clamping part, and therefore a second part, perpendicular to the first part, of the tail pipe is clamped among the third clamping key block, the fourth clamping key block and the fifth clamping key block; the second driving device is connected with the clamping base and used for moving the clamping base back and forth, and the clamping base is movably arranged on the first fixing base back and forth.

Preferably, the third compression bar is an L-shaped compression bar, the L-shaped compression bar includes a horizontal compression bar and a vertical compression bar, the horizontal compression bar is connected to the vertical compression bar, the horizontal compression bar is disposed in front of and behind the second presser, and the vertical compression bar faces the second clamping key block, so that the first portion is clamped between the first clamping key block, the second clamping key block, the horizontal compression bar and the vertical compression bar.

Preferably, the clamping base is an L-shaped clamping base, the L-shaped clamping base comprises a first base and a second base, one end of the first base is connected with one end of the second base, the first clamping key block and the key block mounting seat are both arranged at the other end of the first base, the fourth fixing base is located in front of the other end of the first base and connected with the other end of the first base through the second connecting piece, the U-shaped clamping portion is arranged at the other end of the second base in a left-right mode, the second driving device is connected with the first base and used for moving the first base back and forth, and the first base is arranged on the first fixing base in a front-back movable mode.

Preferably, the positioning and pressing adjustable mechanism for welding the automobile muffler bag and the tail pipe further comprises a fifth fixing base, the clamping base is arranged on the fifth fixing base, the fifth fixing base is movably arranged on the first fixing base in a front-back mode, and the second driving device is connected with the fifth fixing base and used for moving the fifth fixing base back and forth.

Preferably, the positioning and pressing adjustable mechanism for welding the automobile muffler bag and the tail pipe further comprises a front and rear two-way limiting block and a limiting convex portion, the front and rear two-way limiting block comprises a limiting base, a front limiting block and a rear limiting block, the front limiting block and the rear limiting block are arranged on the limiting base at a front and rear interval, the limiting base is arranged on the first fixing base, and the limiting convex portion is located between the front limiting block and the rear limiting block and connected with the tail pipe clamping device.

The beneficial effects of the utility model mainly lie in:

1. the utility model discloses a car noise elimination package and tail pipe welded location compress tightly tail pipe clamping device and noise elimination package rear end top tight device relative interval before back set up, noise elimination package clamping device is located the side of the position between tail pipe clamping device and the noise elimination package rear end top tight device and is used for the centre gripping of noise elimination package at this position, noise elimination package front end dog is located the below of tail pipe clamping device and is used for supporting the front end that leans on the noise elimination package, noise elimination package rear end top tight device is used for from the rear to the front top tight rear end of noise elimination package, first drive arrangement connects noise elimination package rear end top tight device and is used for the back-and-forth movement the device, tail pipe clamping device is used for centre gripping the tail pipe and aims at the tail pipe jack of the front end of noise elimination package, second drive arrangement connects tail pipe clamping device and is used for the back-and-forth movement the device thereby control the insertion volume of tail pipe in the tail pipe jack, tail pipe clamping device, the distance limiting connecting rod is arranged in front of and behind the first fixing base, and the first fixing base is connected with the rear end jacking device of the silencing bag through the distance limiting connecting rod, so that the silencing bag and the tail pipe can be accurately positioned and clamped, the problem of inaccurate positioning of a welding seam position caused by large tolerance of the silencing bag is solved, and the device is suitable for large-scale popularization and application.

2. The utility model discloses a car noise elimination package and tail pipe welded location compress tightly tail pipe clamping device and noise elimination package rear end top tight device relative interval before back set up, noise elimination package clamping device is located the side of the position between tail pipe clamping device and the noise elimination package rear end top tight device and is used for the centre gripping of noise elimination package at this position, noise elimination package front end dog is located the below of tail pipe clamping device and is used for supporting the front end that leans on the noise elimination package, noise elimination package rear end top tight device is used for from the rear to the front top tight rear end of noise elimination package, first drive arrangement connects noise elimination package rear end top tight device and is used for the back-and-forth movement the device, tail pipe clamping device is used for centre gripping the tail pipe and aims at the tail pipe jack of the front end of noise elimination package, second drive arrangement connects tail pipe clamping device and is used for the back-and-forth movement the device thereby control the insertion volume of tail pipe in the tail pipe jack, tail pipe clamping device, the distance limiting connecting rod is arranged in the front and back, and the first fixing base is connected with the rear end jacking device of the silencing bag through the distance limiting connecting rod, so that the device is ingenious in design, simple in structure, simple and convenient to manufacture, low in cost and suitable for large-scale popularization and application.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims, taken in conjunction with the accompanying drawings and the accompanying claims, wherein like reference numerals refer to like elements throughout.

Drawings

Fig. 1 is a schematic perspective view of a specific embodiment of a positioning and pressing adjustable mechanism for welding an automobile muffler bag and a tail pipe of the present invention.

Fig. 2 is a schematic front view of the embodiment shown in fig. 1.

Fig. 3 is a perspective view of the front bracket of the embodiment shown in fig. 1.

Fig. 4 is a perspective view of the rear bracket of the embodiment shown in fig. 1.

Figure 5 is a perspective view of the top hold-down device of the embodiment shown in figure 1.

Fig. 6 is a perspective view schematically showing an assembly of the first driving device, the rear end abutting device of the muffler package, and the distance limiting link of the embodiment shown in fig. 1.

FIG. 7 is a perspective view of the tailpipe clamping device of the embodiment shown in FIG. 1.

Fig. 8 is a perspective view of the front end stop of the muffler package of the embodiment shown in fig. 1.

Fig. 9 is a perspective view of an assembly of the second driving device, the first stationary base, the fifth stationary base, and a portion of the distance limiting link of the embodiment shown in fig. 1.

(symbol description)

1 a silencing bag holding device; 2, a rear end jacking device of the silencing bag; 3 distance limiting link; 4 tail pipe clamping device; 5 a first drive device; 6 a first fixed base; 7, silencing; 8 tail pipes; 9 tail pipe jacks; 10 a front bracket; 11 a rear bracket; 12 a top hold down; 13 a first compression bar; 14 a second compression bar; 15 a first impactor; 16 a second stationary base; 17, pressing a block before; pressing the mixture into blocks after 18 times; 19 a third stationary base; 20 a first connector; 21, tightly pressing the back end of the silencing bag; 22 a horizontal plate member; 23 vertical plates; 24 a fourth stationary base; 25 a second impactor; 26 a second connector; 27 a third pressure bar; 28 clamping the base; a 29U-shaped clamping portion; 30 key block mounting seats; 31 a first clamping key; 32 a second clamping key; 33 a third clamping key; 34 a fourth clamping key; 35 a fifth clamping key; 36 horizontal compression bar; 37 vertical compression bar; 38 a first portion; 39 a second portion; 40 a first base; 41 a second base; 42 a front end stop block of the silencing bag; 43 a fifth stationary base; 44 second driving means; 45 front and back two-way limiting blocks; 46 limiting convex part; 47 limiting base; a 48 front limiting block; and 49 rear limit blocks.

Detailed Description

In order to clearly understand the technical contents of the present invention, the following embodiments are specifically illustrated in detail.

Referring to fig. 1 to 9, in an embodiment of the present invention, the positioning and pressing adjustable mechanism for welding the muffler package and the tail pipe of the vehicle comprises a muffler package clamping device 1, a muffler package front end stop block 42, a muffler package rear end abutting device 2, a distance limiting connecting rod 3, a tail pipe clamping device 4, a first driving device 5, a second driving device 44 and a first fixing base 6, wherein the tail pipe clamping device 4 and the muffler package rear end abutting device 2 are arranged at a front-rear relative interval, the muffler package clamping device 1 is located beside a position between the tail pipe clamping device 4 and the muffler package rear end abutting device 2 and is used for clamping the muffler package 7 at the position, the muffler package front end stop block 42 is located below the tail pipe clamping device 1 and is used for abutting against the front end of the muffler package 7, the muffler package rear end abutting device 2 is used for abutting against the rear end of the muffler package 7 from back to front, the first driving device 5 is connected with the rear end jacking device 2 of the silencing bag and used for moving the rear end jacking device 2 of the silencing bag back and forth, the tail pipe clamping device 4 is used for clamping a tail pipe 8 and aligning with a tail pipe jack 9 at the front end of the silencing bag 7, the second driving device 44 is connected with the tail pipe clamping device 4 and used for moving the tail pipe clamping device 4 back and forth so as to control the insertion amount of the tail pipe 8 in the tail pipe jack 9, the tail pipe clamping device 4 is movably arranged on the first fixing base 6 back and forth, the distance limiting connecting rod 3 is arranged back and forth, and the first fixing base 6 is connected with the rear end jacking device 2 of the silencing bag through the distance limiting connecting rod 3.

The silencing bag holding device 1 may have any suitable structure, as shown in fig. 1 to 5, in an embodiment of the present invention, the silencing bag holding device 1 includes a front bracket 10, a rear bracket 11 and a top pressing device 12, the front bracket 10 and the rear bracket 11 are arranged at a front-back interval below the position for supporting the silencing bag 7, and the top pressing device 12 is located at a side of the position and extends to the upper surface of the position for pressing the silencing bag 7 from top to bottom.

The top hold-down device 12 may have any suitable construction, as shown in figures 1-2 and 5, in an embodiment of the present invention, the top pressing device 12 comprises a first pressing rod 13, a second pressing rod 14, a first pressing device 15, a second fixing base 16, a front pressing block 17 and a rear pressing block 18, the front pressing block 17 and the rear pressing block 18 are arranged on the upper surface of the position at intervals from front to back and are used for pressing the silencing bag 7 from top to bottom, the first pressure lever 13 is arranged in front and back, two ends of the first pressure lever 13 are respectively connected with the front pressing block 17 and the back pressing block 18, the second fixed base 16 is located at the side of the position, the first presser 15 is mounted on the second fixed base 16, the second pressure lever 14 is arranged left and right, and two ends of the second pressure lever 14 are respectively connected with the middle part of the first pressure lever 13 and the first presser 15.

The pack rear end holding device 2 may have any suitable configuration, as shown in figures 1 and 6, in a specific embodiment of the present invention, the rear end abutting device 2 of the muffler bag comprises a third fixing base 19, a first connecting member 20 and a rear end abutting pressing plate 21 of the muffler bag, the back end of the silencing bag is propped against the pressing plate 21 and is arranged at the left and right sides, one end of the back end of the silencing bag is propped against the back end of the silencing bag 7 at a relative interval with the front and back of the tail pipe clamping device 4, the third fixed base 19 is positioned on the side of the position, the other end of the back end of the silencing bag is propped against the pressing plate 21 and is connected with the third fixed base 19 through the first connecting piece 20, the first driving device 5 is connected with the third fixing base 19 for moving the third fixing base 19 forward and backward, and the distance limiting connecting rod 3 is connected with the third fixing base 19.

The first connecting member 20 may have any suitable shape, as shown in fig. 1 and 6, in an embodiment of the present invention, the first connecting member 20 is an L-shaped connecting member, the L-shaped connecting member includes a horizontal plate member 22 and a vertical plate member 23, the horizontal plate member 22 is disposed on the third fixing base 19, a lower end of the vertical plate member 23 is connected to one end of the horizontal plate member 22, and the other end of the rear end of the muffler bag is connected to the vertical plate member 23 by a pressing plate 21.

The tailpipe clamping device 4 may have any suitable structure, as shown in fig. 1-2 and 7, in an embodiment of the present invention, the tailpipe clamping device 4 includes a fourth fixing base 24, a second presser 25, a second connector 26, a third presser 27, a clamping base 28, a U-shaped clamping portion 29, a key block mounting seat 30, a first clamping key block 31, a second clamping key block 32, a third clamping key block 33, a fourth clamping key block 34 and a fifth clamping key block 35;

the first clamping key block 31 and the key block mounting seat 30 are both arranged on the clamping base 28, the key block mounting seat 30 is positioned in front of the first clamping key block 31, the upper part of the key block mounting seat 30 protrudes out of the first clamping key block 31, and the second clamping key block 32 is arranged on the upper part of the key block mounting seat 30 and faces backwards;

the fourth fixing base 24 is located in front of the clamping base 28 and is connected with the clamping base 28 through the second connecting piece 26, the second presser 25 is mounted on the fourth fixing base 24, the third pressing rod 27 is located above the first clamping key block 31 and is connected with the second presser 25, and therefore the first part 38 of the tail pipe 8 is clamped among the first clamping key block 31, the second clamping key block 32 and the third pressing rod 27;

the U-shaped clamping part 29 is arranged on the clamping base 28 from left to right, the third clamping key block 33 is arranged at the bottom of the U-shaped clamping part 29, the fourth clamping key block 34 and the fifth clamping key block 35 are oppositely arranged and are respectively arranged on the left side wall and the right side wall of the U-shaped clamping part 29 so as to clamp a second part 39, perpendicular to the first part 38, of the tail pipe 8 among the third clamping key block 33, the fourth clamping key block 34 and the fifth clamping key block 35; the second driving device 44 is connected to the clamping base 28 for moving the clamping base 28 back and forth, and the clamping base 28 is movably disposed on the first fixing base 6 back and forth.

The third pressing rod 27 may have any suitable shape, as shown in fig. 1-2 and 7, in an embodiment of the present invention, the third pressing rod 27 is an L-shaped pressing rod, the L-shaped pressing rod includes a horizontal pressing rod 36 and a vertical pressing rod 37, the horizontal pressing rod 36 is connected to the vertical pressing rod 37, the horizontal pressing rod 36 is disposed in front of and behind and connected to the second presser 25, and the vertical pressing rod 37 faces the second clamping key 32, so as to clamp the first portion 38 between the first clamping key 31, the second clamping key 32, the horizontal pressing rod 36 and the vertical pressing rod 37.

The clamp base 28 may have any suitable shape, as shown in figures 1-2 and 7, in one embodiment of the present invention, the clamping base 28 is an L-shaped clamping base, the L-shaped clamping base includes a first base 40 and a second base 41, one end of the first base 40 is connected to one end of the second base 41, the first clamping key block 31 and the key block mounting seat 30 are both provided on the other end of the first base 40, the fourth fixing base 24 is located in front of the other end of the first base 40 and is connected to the other end of the first base 40 through the second connecting member 26, the U-shaped clamping part 29 is arranged at the other end of the second base 41 at the left and right, the second driving device 44 is connected with the first base 40 for moving the first base 40 back and forth, and the first base 40 is movably arranged on the first fixed base 6 back and forth.

The clamping base 28 is movably arranged on the first fixing base 6 in a front-back direction, and may adopt any suitable structure, and preferably, the positioning and pressing adjustable mechanism for welding the automobile muffler bag and the tail pipe further comprises a fifth fixing base 43, the clamping base 28 is arranged on the fifth fixing base 43, the fifth fixing base 43 is movably arranged on the first fixing base 6 in a front-back direction, and the second driving device 44 is connected with the fifth fixing base 43 and is used for moving the fifth fixing base 43 back and forth. Referring to fig. 1 to 2, 7 and 9, in an embodiment of the present invention, in a case that the clamping base 28 is an L-shaped clamping base and the L-shaped clamping base includes a first base 40 and a second base 41, the first base 40 is disposed on the fifth fixing base 43.

In order to limit the front-back movement range of the tail pipe clamping device 4, preferably, the positioning and pressing adjustable mechanism for welding the automobile muffler bag and the tail pipe further comprises a front-back two-way limiting block 45 and a limiting convex portion 46, the front-back two-way limiting block 45 comprises a limiting base 47, a front limiting block 48 and a rear limiting block 49, the front limiting block 48 and the rear limiting block 49 are arranged on the limiting base 47 at intervals in the front-back direction, the limiting base 47 is arranged on the first fixing base 6, and the limiting convex portion 46 is arranged between the front limiting block 48 and the rear limiting block 49 and connected with the tail pipe clamping device 4. Referring to fig. 9, in an embodiment of the present invention, in a case where the tail pipe clamping device 4 includes a fourth fixing base 24, a second presser 25, a second connector 26, a third presser bar 27, a clamping base 28, a U-shaped clamping portion 29, a key block mounting base 30, a first clamping key block 31, a second clamping key block 32, a third clamping key block 33, a fourth clamping key block 34, and a fifth clamping key block 35, the limiting protrusion 46 is connected to the clamping base 28. In the case where the clamp base 28 is an L-shaped clamp base and the L-shaped clamp base includes a first base 40 and a second base 41, the limit projection 46 connects the first base 40. In the case where the first base 40 is provided on the fifth stationary base 43, the limit projection 46 is connected to the fifth stationary base 43.

The first driving device 5 and the second driving device 44 may be any suitable driving device, as shown in fig. 6, and in an embodiment of the present invention, the first driving device 5 and the second driving device 44 are both air cylinders.

When the silencer is used, the silencer package 7 is placed on the front bracket 10 and the rear bracket 11, the rear end of the silencer package 7 faces the rear end of the silencer package and is propped against the pressing plate 21, the front end of the silencer package 7 is propped against the front end stop block 42 of the silencer package, the tail pipe jack 9 at the front end of the silencer package 7 faces the U-shaped clamping part 29, the third fixing base 19 is driven by the first driving device 5 to move forwards, the rear end propping pressing plate 21 of the silencer package is driven by the first connecting piece 20 to move forwards, so that the rear end of the silencer package 7 is propped against the rear end of the silencer package from back to front, the front pressing block 17 and the rear pressing block 18 are pressed against the silencer package 7 from top to bottom by the first pressing device 15, the second part 39 of the tail pipe 8 penetrates through the first clamping key block 31, the second clamping key block 32 and the third pressing rod 27, the second pressing device 25 presses the second part 39 of the third pressing rod 27 from top to bottom, and the first part 38 of the tail pipe 8 is clamped on, Between the fourth clamping key block 34 and the fifth clamping key block 35, which faces the tail pipe insertion hole 9, the fifth fixing base 43 is driven by the second driving device 44 to move backward, so as to drive the first base 40 thereon to move backward, and then drive the second base 41 to move backward, so that the second portion 39 of the tail pipe 8 is inserted into the tail pipe insertion hole 9 to a desired position, for example, the limiting protrusion 46 touches the rear limiting block 49, and welding can be performed.

Therefore, the silencing bag is positioned through the silencing bag clamping device, the front end of the silencing bag is limited through the front end stop block of the silencing bag, the rear end of the silencing bag is limited through the rear end abutting device of the silencing bag, the length from the first fixing base to the rear end of the silencing bag is limited through the distance limiting connecting rod, the tail pipe clamping device is moved back and forth through the second driving device to control the insertion amount of the tail pipe in the jack of the tail pipe, the silencing bag and the tail pipe can be welded, positioned and clamped, and the problem that the welding seam position is inaccurately positioned due to large tolerance of the silencing bag is solved. The mechanism is simple and clear in structure and good in economical efficiency, and meanwhile, a mode is provided for positioning and clamping workpieces with large tolerance due to large size.

To sum up, the utility model discloses a car noise elimination package and tail pipe welded location compress tightly adjustable mechanism can accurately fix a position and press from both sides tightly noise elimination package and tail pipe welding, solves the great unsafe difficulty in welding seam position location that brings of noise elimination package tolerance, design benefit, and the structure is succinct, makes portably, and is with low costs, is suitable for extensive popularization and application.

Therefore, the purpose of the utility model is completely and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments may be modified without departing from the principles. Therefore, the present invention includes all modifications within the spirit and scope of the appended claims.

Claims

1. A positioning and pressing adjustable mechanism for welding an automobile silencing bag and a tail pipe is characterized by comprising a silencing bag clamping device, a silencing bag front end stop block, a silencing bag rear end jacking device, a distance limiting connecting rod, a tail pipe clamping device, a first driving device, a second driving device and a first fixed base, wherein the tail pipe clamping device and the silencing bag rear end jacking device are oppositely arranged at intervals from front to back, the silencing bag clamping device is positioned beside the position between the tail pipe clamping device and the silencing bag rear end jacking device and used for clamping the silencing bag at the position, the silencing bag front end stop block is positioned below the tail pipe clamping device and used for abutting against the front end of the silencing bag, the silencing bag rear end jacking device is used for jacking the rear end of the silencing bag from back to front, the first driving device is connected with the silencing bag rear end jacking device and used for moving the silencing bag rear end jacking device back and forth, the tail pipe clamping device is used for clamping a tail pipe and aligning to a tail pipe jack at the front end of the silencing bag, the second driving device is connected with the tail pipe clamping device and used for moving the tail pipe clamping device back and forth so as to control the insertion amount of the tail pipe in the tail pipe jack, the tail pipe clamping device is movably arranged on the first fixing base back and forth, the distance limiting connecting rod is arranged back and forth, and the first fixing base is connected with the rear end jacking device of the silencing bag through the distance limiting connecting rod.

2. The adjustable car muffler package and tailpipe welded position clamping mechanism according to claim 1, wherein said muffler package holding means comprises a front bracket, a rear bracket and a top clamping means, said front bracket and said rear bracket being spaced back and forth below said location for holding said muffler package, said top clamping means being located laterally of said location and extending above said location for clamping said muffler package from above to below.

3. The adjustable positioning and pressing mechanism for welding the muffler package and the tail pipe of the automobile according to claim 2, wherein the top pressing device comprises a first pressing rod, a second pressing rod, a first pressing device, a second fixing base, a front pressing block and a rear pressing block, the front pressing block and the rear pressing block are arranged on the position at intervals in a front-back manner and are used for pressing the muffler package from top to bottom, the first pressing rod is arranged in the front-back manner, two ends of the first pressing rod are respectively connected with the front pressing block and the rear pressing block, the second fixing base is arranged on the side of the position, the first pressing device is mounted on the second fixing base, the second pressing rod is arranged in the left-right manner, and two ends of the second pressing rod are respectively connected with the middle of the first pressing rod and the first pressing device.

4. The adjustable positioning and pressing mechanism for welding the automotive muffler package and the tail pipe as claimed in claim 1, wherein the rear end abutting device of the muffler package comprises a third fixing base, a first connecting member and a rear end abutting pressing plate of the muffler package, the rear end abutting pressing plate of the muffler package is arranged on the left and right sides, one end of the rear end abutting pressing plate of the muffler package and the tail pipe clamping device are arranged at a relative interval from front to back for abutting the rear end of the muffler package from back to front, the third fixing base is arranged on the side of the position, the other end of the rear end abutting pressing plate of the muffler package is connected with the third fixing base through the first connecting member, the first driving device is connected with the third fixing base for moving the third fixing base back and forth, and the distance limiting connecting rod is connected with the third fixing base.

5. The adjustable positioning and pressing mechanism for welding the muffler and the tail pipe of the automobile according to claim 4, wherein the first connecting member is an L-shaped connecting member, the L-shaped connecting member comprises a horizontal plate member and a vertical plate member, the horizontal plate member is arranged on the third fixing base, the lower end of the vertical plate member is connected with one end of the horizontal plate member, and the other end of the rear end of the muffler pushes the pressing plate to be connected with the vertical plate member.

6. The automobile muffler package and tail pipe welded positioning and clamping adjustable mechanism according to claim 1, wherein the tail pipe clamping device comprises a fourth fixed base, a second presser, a second connector, a third press rod, a clamping base, a U-shaped clamping part, a key block mounting seat, a first clamping key block, a second clamping key block, a third clamping key block, a fourth clamping key block and a fifth clamping key block;

7. The adjustable positioning and pressing mechanism for welding the muffler cover and the tail pipe of the automobile according to claim 6, wherein the third pressing rod is an L-shaped pressing rod, the L-shaped pressing rod comprises a horizontal pressing rod and a vertical pressing rod, the horizontal pressing rod is connected with the vertical pressing rod, the horizontal pressing rod is arranged in front of and connected with the second pressing device, and the vertical pressing rod faces the second clamping key block, so that the first part is clamped among the first clamping key block, the second clamping key block, the horizontal pressing rod and the vertical pressing rod.

8. The adjustable positioning and pressing mechanism for welding the automobile muffler bag and the tail pipe as claimed in claim 6, wherein the clamping base is an L-shaped clamping base, the L-shaped clamping base comprises a first base and a second base, one end of the first base is connected with one end of the second base, the first clamping key block and the key block mounting seat are both arranged at the other end of the first base, the fourth fixing base is located in front of the other end of the first base and connected with the other end of the first base through the second connecting piece, the U-shaped clamping portion is arranged on the left and right of the other end of the second base, the second driving device is connected with the first base for moving the first base back and forth, and the first base is movably arranged on the first fixing base back and forth.

9. The adjustable positioning and pressing mechanism for welding the automobile muffler package and the tail pipe as claimed in claim 6, further comprising a fifth fixing base, wherein the clamping base is disposed on the fifth fixing base, the fifth fixing base is movably disposed on the first fixing base in a front-back direction, and the second driving device is connected to the fifth fixing base for moving the fifth fixing base in a front-back direction.

10. The adjustable positioning and pressing mechanism for welding the automobile muffler package and the tail pipe as claimed in claim 1, further comprising a front and a rear two-way limiting blocks and a limiting protrusion, wherein the front and the rear two-way limiting blocks comprise a limiting base, a front limiting block and a rear limiting block, the front limiting block and the rear limiting block are arranged on the limiting base at intervals, the limiting base is arranged on the first fixing base, and the limiting protrusion is arranged between the front limiting block and the rear limiting block and connected with the tail pipe clamping device.