Heavy-load accompanying buffer positioning device

Abstract

The utility model relates to the technical field of buffering and positioning devices, in particular to a heavy-load accompanying buffering and positioning device which comprises a fixing frame, a positioning mechanism and an intercepting and buffering mechanism. A mounting frame is arranged on the top face of the outer end of the fixing frame, the positioning mechanism is arranged at the inner end of the fixing frame, the intercepting and buffering mechanism is transversely arranged on the mounting frame in a sliding mode, and the working end of the intercepting and buffering mechanism is matched with the positioning mechanism in a clamping mode. The intercepting and buffering mechanism in the heavy-load accompanying buffering and positioning device adopts a double-layer structure, intercepts a positioning part of a specified station of a chain plate wheel conveying line and keeps synchronous accompanying with the positioning part, and meanwhile, the combined inertia between the intercepting and buffering mechanism and the positioning part is absorbed; the positioning mechanism applies clamping force to the positioning part to keep high-precision accompanying synchronization, huge impact force caused by interception is reduced, damage to equipment is reduced, the service life of the equipment is prolonged, and the seasickness phenomenon of workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of buffer positioning devices, and particularly relates to a heavy-duty follow-up buffer positioning device. Background Art

[0002] At present, in the process of automobile production, the production line of the automobile welding workshop includes a chain wheel conveyor line and a conveying device (i.e., a lifting frame). The two cooperate with each other to transport the automobile shell to quickly flow between various workstations. For the conveying device to accurately place the automobile shell into the designated workstation on the chain wheel conveyor line, it is necessary to keep in follow-up synchronization with the chain wheel conveyor line;

[0003] However, the buffer device adopted in the conveying device of the automobile welding workshop production line has poor follow-up synchronization accuracy with the chain wheel conveyor line and cannot absorb the combined inertia generated by large impacts. Therefore, in the actual use process, excessive impacts will not only damage the equipment itself, reduce the service life of the equipment, but also cause the phenomenon of seasickness among professionals.

[0004] Therefore, the applicant hereby proposes a heavy-duty follow-up buffer positioning device to solve the above problems. Content of the Utility Model

[0005] In order to solve the deficiencies existing in the prior art, the utility model provides a heavy-duty follow-up buffer positioning device.

[0006] The technical solution of the utility model is as follows:

[0007] The utility model provides a heavy-duty follow-up buffer positioning device, which includes a fixed frame, a positioning mechanism and an intercepting buffer mechanism; an installation frame is arranged on the top surface of the outer end of the fixed frame, the positioning mechanism is arranged on the inner end of the fixed frame, and the intercepting buffer mechanism is horizontally slidably arranged on the installation frame and its working end is clamped and cooperated with the positioning mechanism.

[0008] Furthermore, the positioning mechanism includes a fixed seat, a triangular plate, a positioning driving device, a connecting seat, a connecting side plate and a detection component; the fixed seat is arranged on the inner end of the fixed frame and a triangular plate is rotatably arranged on the rear end thereof, the positioning driving device is arranged on the front end face of the fixed seat and its working end is provided with a connecting seat, a connecting side plate is rotatably arranged between the non-fixed end of the connecting seat and the connecting end of the triangular plate, the detection component is arranged on the rear side of the side part of the fixed seat, and a detection rod is fixedly arranged on the rear side face of the positioning end of the triangular plate.

[0009] Furthermore, the interception buffer mechanism includes a sliding seat, an interception plate, a sliding drive device and a buffer assembly; the sliding seat is transversely arranged on the top surface of the mounting frame, the interception plate is transversely arranged in the sliding seat and slides with it, the sliding seat is provided with a sliding groove connected to the interior of the mounting frame, and the bottom surface of the interception plate is provided with a plurality of sliding wheels that slide with the sliding groove along its length direction, the sliding drive device is transversely fixed on the inner side surface of the mounting frame and its working end is transmission-connected to the bottom surface of the non-working end of the interception plate, and the buffer assembly is rotatably arranged on the interception plate.

[0010] Furthermore, the buffer assembly includes an L-shaped buffer plate, a detection frame, a buffer spring, a detection bracket, a third limit switch, a fourth limit switch and a fifth limit switch; the rotating end of the buffer plate is rotatably arranged on the non-working end of the intercepting plate, the two detection frames are symmetrically placed facing each other and are respectively connected to the buffer plate and the intercepting plate, the buffer spring is located between the two detection frames and its two ends are respectively connected to the corresponding detection frames, the detection bracket is arranged on the buffer plate, the third limit switch and the fourth limit switch are respectively arranged on the left side of the sliding seat, the third limit switch and the fourth limit switch are respectively in contact with the detection frame and the detection bracket arranged on the buffer plate, and the fifth limit switch is arranged on the right side of the sliding seat and in contact with the detection frame located on the intercepting plate.

[0011] Furthermore, the detection assembly includes a detection plate, a first limit switch and a second limit switch; the detection plate is arranged on the rear end side of the fixed seat, the first limit switch and the second limit switch are respectively arranged on the right and left sides of the detection plate, and the working ends of the first limit switch and the second limit switch are in contact with the detection rod.

[0012] Furthermore, mounting rails are provided on both sides of the sliding seat along the length direction thereof, and the third limit switch, the fourth limit switch and the fifth limit switch are respectively arranged in the mounting rails on both sides of the sliding seat through sliders.

[0013] Furthermore, a pulley is rotatably provided on the connecting seat, and a sliding groove is provided on the inner bottom surface of the fixing seat to slide with the pulley.

[0014] Furthermore, avoidance gaps are provided on both sides of the rear end of the fixing seat corresponding to the connecting seat.

[0015] The beneficial effects achieved by the utility model are:

[0016] The interception buffer mechanism in the heavy-duty accompanying buffer positioning device provided by the present utility model adopts a double-layer structure. It intercepts the positioning part at a specified station on the chain plate wheel conveyor line and moves synchronously with it. At the same time, it absorbs the combined inertia between the interception buffer mechanism and the positioning part. The positioning mechanism applies a clamping force to the positioning part to maintain high-precision accompanying synchronization, reduces the huge impact force caused by interception, reduces damage to the equipment, improves the service life of the equipment, and avoids the phenomenon of seasickness for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 is a schematic diagram of the structure of the positioning mechanism.

[0019] Figure 3 is a schematic diagram of the structure of the interception buffer mechanism.

[0020] Figure 4 is a cross-sectional schematic diagram of the interception buffer mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] For the convenience of those skilled in the art to understand the present utility model, the following clearly describes the specific embodiments of the present utility model with reference to the drawings. Obviously, the described specific embodiments are only relatively preferred embodiments of the present utility model, rather than all embodiments.

[0022] As Figures 1-4 shown, a heavy-duty accompanying buffer positioning device of the present utility model is applied to an automobile welding production line composed of a chain plate wheel conveyor line and a conveying device (i.e., a mobile lifting frame). The device includes a fixed frame 1, a positioning mechanism 2, and an interception buffer mechanism 3; an installation frame 11 is bolted and fixed on the outer end top surface of the fixed frame 1, the positioning mechanism 2 is arranged on the inner end top surface of the fixed frame 1, and the interception buffer mechanism 3 is horizontally slidably arranged on the installation frame 11 and its working end is clamped and cooperated with the positioning mechanism 2.

[0023] The positioning mechanism 2 includes a fixed seat 21, a triangular plate 22, a positioning driving device 23, a connecting seat 24, a connecting side plate 25 and a detection component 26; the fixed seat 21 is bolted and fixed on the inner end top surface of the fixed frame 1, and a triangular plate 22 is rotatably provided at the rear end thereof. The positioning driving device 23 is bolted and fixed on the front end surface of the fixed seat 21, and its working end is bolted and connected with a connecting seat 24. Connecting side plates 25 are rotatably provided between the two sides of the non-fixed end of the connecting seat 24 and the two sides of the connecting end of the triangular plate 22. The detection component 26 is arranged at the rear side of the fixed seat 21. A detection rod 221 which is in contact and cooperation with the working end of the detection component 26 is fixedly provided on the rear side surface of the positioning end of the triangular plate 22. The positioning driving device 23 is preferably a cylinder. The positioning driving device drives the connecting seat to extend out of or retract into the fixed seat. The connecting seat drives the triangular plate to rotate through the connecting side plates at its connecting end, thereby applying or canceling the clamping force to the working end of the interception and buffering mechanism. During the above process, the detection rod 221 on the triangular plate will be in real-time contact and cooperation with the working end of the detection component, so as to feedback the operating state of the positioning driving device to the control system in real time and ensure the stability of the operation of the device.

[0024] A pulley 241 is rotatably provided on the connecting seat 24, and a sliding groove 211 which is in sliding cooperation with the pulley 241 is formed on the inner bottom surface of the fixed seat 21;

[0025] Avoidance notches are correspondingly formed on both sides of the rear end of the fixed seat 21 corresponding to the connecting seat 24;

[0026] The detection component 26 includes a detection board 261, a first limit switch 262 and a second limit switch 263; the detection board 261 is bolted and fixed on the rear side of the fixed seat 21. The first limit switch 262 and the second limit switch 263 are respectively bolted and fixed on the right side and the left side of the detection board 261, and the working ends of the first limit switch 262 and the second limit switch 263 are in contact and cooperation with the detection rod 221; used for detecting the real-time operating state of the positioning driving component.

[0027] The interception and buffering mechanism 3 includes a sliding seat 31, an interception board 32, a sliding driving device 33 and a buffering component 34; the sliding seat 31 is horizontally bolted and fixed on the top surface of the mounting frame 11. The interception board 32 is horizontally arranged in the sliding seat 31 and is in sliding cooperation with it. A sliding groove 311 which is communicated with the inside of the mounting frame 11 is formed in the middle of the sliding seat 31. A plurality of sliding wheels 111 which are in sliding cooperation with the sliding groove 311 are arranged on the bottom surface of the interception board 32 along its length direction. The sliding driving device 33 is horizontally fixed on the inner side surface of the mounting frame 11, and its working end is in transmission connection with the bottom surface of the non-working end of the interception board 32. The buffering component 34 is rotatably arranged on the interception board 32. The sliding driving device 33 is preferably a cylinder;

[0028] The buffer assembly 34 includes an L-shaped buffer plate 341, a detection frame 342, a buffer spring 343, a detection support 344, a third limit switch 345, a fourth limit switch 346, and a fifth limit switch 347;

[0029] The rotating end of the buffer plate 341 is rotatably arranged on the top surface of the non-working end of the intercepting plate 32. The two detection frames 342 are symmetrically placed facing each other and are respectively bolted and fixed to the middle top surfaces of the buffer plate 341 and the intercepting plate 32. The buffer spring 343 is located between the two detection frames 342, and its two ends are respectively bolted and fixed to the corresponding detection frames 342. The detection support 344 is bolted and fixed on the buffer plate 341 on the right side of the detection frame 342. The third limit switch 345 and the fourth limit switch 346 are respectively bolted and fixed on the left side of the sliding seat 31. The third limit switch 345 and the fourth limit switch 346 are respectively in contact and cooperation with the detection frame 342 and the detection support 344 arranged on the buffer plate 341. The fifth limit switch 347 is bolted and fixed on the right side of the sliding seat 31 and is in contact and cooperation with the detection frame 342 located on the intercepting plate 32; The intercepting and buffering mechanism adopts a double-layer structure. The sliding driving device will drive the intercepting plate to slide out of the sliding seat to intercept the positioning part of the specified station on the chain wheel conveyor line (that is, the positioning pin columns arranged on the bottom surfaces of the two ends of the chain wheels on the chain wheel conveyor line before the specified station) and keep in synchronous travel with the chain wheel conveyor line. The third, fourth, and fifth limit switches are respectively in contact and cooperation with the corresponding detection frames and detection supports to detect in real time and feedback the positions and operating states of the intercepting plate and the buffer plate to the control system; When the buffer plate contacts its positioning part, its buffer spring will absorb the combined inertia generated between the buffer plate and the intercepting plate due to intercepting the positioning plate part. At the same time, the buffer spring reduces the huge impact force caused by intercepting, reduces damage to the equipment itself, improves the service life of the equipment, and avoids the phenomenon of seasickness for the staff; In the case of the heavy load and fast-beat operation of the mobile lifting frame, it can still maintain high-precision synchronous travel.

[0030] Installation slide rails 312 are provided on both sides of the sliding seat 31 along its length direction. The third limit switch 345, the fourth limit switch 346, and the fifth limit switch 347 are respectively bolted and fixed in the installation slide rails 312 on both sides of the sliding seat 31 through sliders; It is convenient to adjust the installation positions of the first limit switch, the second limit switch, and the third limit switch.

[0031] In actual application, two such overload follow-up buffer positioning devices are symmetrically installed on both sides of the conveying device (i.e., the mobile lifting frame) in the automotive welding production line. When the mobile lifting frame moves to the designated station of the chain wheel conveyor line, the intercepting plate of the intercepting buffer mechanism extends out of the sliding seat to intercept the positioning pin column under the chain wheel conveyor line and makes the mobile lifting frame move along with it synchronously. Under the action of the buffer assembly, the impact force caused by the chain wheel conveyor line will be reduced, and the positioning assembly will apply a clamping force to the positioning pin column to ensure the accuracy and stability of synchronous movement.

[0032] The above-described embodiments of the present invention do not limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. An overload follower buffer positioning device, characterized in that: The invention comprises a fixing frame (1), a positioning mechanism (2) and an intercepting and buffering mechanism (3); a mounting frame (11) is provided on the outer end of the fixing frame (1); the positioning mechanism (2) is provided on the top surface of the inner end of the fixing frame (1); the intercepting and buffering mechanism (3) is laterally slidably provided on the mounting frame (11) and its working end is clamped and matched with the positioning mechanism (2).

2. The overload follow-up buffer positioning device according to claim 1, characterized in that: The positioning mechanism (2) comprises a fixed seat (21), a triangular plate (22), a positioning drive device (23), a connecting seat (24), a connecting side plate (25) and a detection assembly (26); the fixed seat (21) is arranged on the inner end of the fixed frame (1) and a triangular plate (22) is rotatably provided on the rear end thereof; the positioning drive device (23) is arranged on the front end surface of the fixed seat (21) and a connecting seat (24) is provided on the working end thereof; a connecting side plate (25) is rotatably provided between the non-fixed end of the connecting seat (24) and the connecting end of the triangular plate (22); the detection assembly (26) is arranged on the rear end side of the fixed seat (21); and a detection rod (221) is fixedly provided on the rear side surface of the positioning end of the triangular plate (22).

3. An overload follow-up buffer positioning device according to any one of claims 1-2, characterized in that: The interception buffer mechanism (3) comprises a sliding seat (31), an interception plate (32), a sliding drive device (33) and a buffer assembly (34); the sliding seat (31) is transversely arranged on the top surface of the mounting frame (11), the interception plate (32) is transversely arranged in the sliding seat (31) and slides with the mounting frame (11), a sliding groove (311) communicating with the interior of the mounting frame (11) is provided on the sliding seat (31), a plurality of sliding wheels (111) slidingly engaged with the sliding groove (311) are provided on the bottom surface of the interception plate (32) along its length direction, the sliding drive device (33) is transversely fixed on the inner side surface of the mounting frame (11) and its working end is transmission-connected to the bottom surface of the non-working end of the interception plate (32), and the buffer assembly (34) is rotatably arranged on the interception plate (32).

4. The overload follow-up buffer positioning device according to claim 3, characterized in that: The buffer assembly (34) comprises an L-shaped buffer plate (341), a detection frame (342), a buffer spring (343), a detection bracket (344), a third limit switch (345), a fourth limit switch (346) and a fifth limit switch (347); the rotating end of the buffer plate (341) is rotatably arranged on the non-working end of the interception plate (32); the two detection frames (342) are symmetrically placed facing each other and are respectively connected to the buffer plate (341) and the interception plate (32); the buffer spring (343) is located between the two detection frames (342) and its two ends are respectively connected to the buffer plate (341) and the interception plate (32); The detection bracket (344) is connected to the corresponding detection bracket (342), the detection bracket (344) is arranged on the buffer plate (341), the third limit switch (345) and the fourth limit switch (346) are respectively arranged on the left side of the sliding seat (31), the third limit switch (345) and the fourth limit switch (346) are respectively in contact with the detection bracket (342) and the detection bracket (344) arranged on the buffer plate (341), and the fifth limit switch (347) is arranged on the right side of the sliding seat (31) and in contact with the detection bracket (342) located on the intercepting plate (32).

5. The overload follow-up buffer positioning device according to claim 2, wherein: The detection component (26) includes a detection board (261), a first limit switch (262) and a second limit switch (263); the detection board (261) is arranged on the rear side of the fixed seat (21), the first limit switch (262) and the second limit switch (263) are respectively arranged on the right side and the left side of the detection board (261), and the working ends of the first limit switch (262) and the second limit switch (263) are in contact and cooperation with the detection rod (221).

6. The overload follow-up buffer positioning device according to claim 4, characterized in that: Installation slide rails (312) are provided on both sides of the sliding seat (31) along its length direction, and the third limit switch (345), the fourth limit switch (346) and the fifth limit switch (347) are respectively arranged in the installation slide rails (312) on both sides of the sliding seat (31) through sliders.

7. The heavy-duty trailing buffer positioning device according to claim 2, wherein: A pulley (241) is rotatably provided on the connecting seat (24), and a chute (211) which is in sliding cooperation with the pulley (241) is provided on the inner bottom surface of the fixed seat (21).

8. An overload follow-up buffer positioning device according to claim 7, characterized in that: Avoidance notches are provided on both sides of the rear end of the fixed seat (21) corresponding to the connecting seat (24).

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