Rapid switching device for automobile part welding clamps

Abstract

The utility model discloses an automobile part welding clamp rapid switching device which comprises a positioning base, and storage racks are arranged on the side portion of the positioning base side by side. A translation mechanism is arranged above the positioning base; three sets of conveying mechanisms are arranged above the storage rack at equal intervals, and a clamp is arranged above each conveying mechanism. A switching mechanism is installed on the translation mechanism, and the switching mechanism and the conveying mechanism are located at the same horizontal height. Three groups of clamps of different vehicle types are respectively placed on the conveying mechanism, and when the clamps need to be switched, the servo motor is controlled to drive the translation bracket to drive the switching mechanism to horizontally move to the corresponding clamp storage station along the length direction of the positioning base; and then the switching mechanism is controlled to transfer the required clamps from the conveying mechanism to the switching mechanism, so that automatic switching of the clamps is completed, the complexity and errors caused by manual clamp replacement are avoided, the model changing time is saved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a rapid switching device for welding fixtures of automobile parts. Background Art

[0002] Auto parts are the various units that constitute the overall auto parts processing, as well as the products that serve the auto parts processing. With the development of the automotive industry and the pursuit of production efficiency, more and more robots are involved in the production and welding process of automobiles. In many cases, in order to save space and reduce costs, parts of different models, or parts of different processes and different positions need to be placed on the same set of fixtures or positions for welding.

[0003] The existing welding fixture switching for automobile taillight sheet metal parts is generally done manually by unloading them from the fixture storage warehouse with a forklift and then placing them on the production station. Not only is it easy for workers to fork the wrong fixture, but it also takes a long time to replace the fixture, which consumes manpower and makes it difficult to ensure repeated positioning accuracy, seriously affecting production efficiency. Summary of the invention

[0004] The utility model aims to provide a fast switching device for welding fixtures of automobile parts to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fast switching device for welding fixtures of automobile parts comprises a positioning base, wherein storage racks are arranged side by side on the side of the positioning base; a translation mechanism is arranged above the positioning base, wherein the translation mechanism is slidably connected to the positioning base; three groups of conveying mechanisms are equidistantly arranged above the storage rack, wherein a fixture is arranged above each conveying mechanism; a switching mechanism is installed on the translation mechanism, wherein the switching mechanism and the conveying mechanism are located at the same horizontal height.

[0007] Preferably, the translation mechanism includes a translation bracket, wherein the translation bracket is laterally arranged above the positioning base; a servo motor is installed on one side of the translation bracket, and the output end of the servo motor is connected to a reducer, wherein the output end of the reducer is connected to a gear; a rack is fixedly installed above the positioning base along its length direction, wherein the rack and the gear are meshed with each other.

[0008] Preferably, two sets of limiting guide rails are symmetrically installed on both sides of the positioning base, wherein the bottom of the translation bracket is provided with a guide rail sliding groove adapted to the limiting guide rails.

[0009] Preferably, the conveying mechanism includes a support frame, wherein the lower end of the support frame is fixedly connected to the storage frame; a movable groove is opened in the middle of the support frame, wherein a first support rod is provided in the middle of the movable groove; the first support rod is fixedly connected to the support frame through a connecting rod, wherein first cylinder locating pins are respectively installed at both ends of the first support rod.

[0010] Preferably, two groups of conveying rollers are symmetrically installed on the upper end of the support frame, wherein each conveying roller is respectively connected to the motor in a transmission manner; a plurality of groups of rollers are provided on the side of the conveying roller away from the movable groove, wherein each roller is respectively fixedly connected to the support frame through a roller bracket.

[0011] Preferably, the switching mechanism includes a fixed frame, wherein the lower end of the fixed frame is fixedly connected to the translation bracket; an electric telescopic cylinder is provided above the fixed frame, wherein a connecting rod is provided at the top of the piston rod of the electric telescopic cylinder; sliding rods are respectively connected to both ends of the connecting rod, wherein the sliding rods are located on both sides of the electric telescopic cylinder and are arranged in parallel; a sliding block is provided at the bottom of the sliding block, wherein guide rails matching the sliding block are respectively provided on both sides of the fixed frame.

[0012] Preferably, the slide rod is provided with a second cylinder locating pin and a third cylinder locating pin respectively, wherein the second cylinder locating pin and the third cylinder locating pin are arranged diagonally.

[0013] Preferably, a second support rod is provided in the middle of the translation bracket, wherein the second support rod is fixedly connected to the translation bracket through a connecting rod; fourth cylinder locating pins are respectively installed at both ends of the second support rod, wherein the spacing between two adjacent fourth cylinder locating pins is the same as the spacing between two adjacent first cylinder locating pins.

[0014] Preferably, two groups of conveying rollers are symmetrically installed above the translation bracket, and limit blocks are provided on the outer sides of the conveying rollers.

[0015] Preferably, a first positioning hole, a second positioning hole and a third positioning hole are provided on the bottom plate of the clamp, wherein the first positioning hole corresponds to the positions of the first cylinder locating pin and the fourth cylinder locating pin respectively; the second positioning hole corresponds to the position of the second cylinder locating pin, and the third positioning hole corresponds to the position of the third cylinder locating pin.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model places three groups of clamps of different vehicle types on the conveying mechanism respectively, and cooperates with the first positioning hole opened on the clamp through the first cylinder positioning pin arranged on the conveying mechanism to fix the clamp on the conveying mechanism; when it is necessary to switch the clamp, the servo motor is controlled to drive the translation bracket to move, so that the translation bracket drives the switching mechanism to move horizontally along the length direction of the positioning base to the workstation where the corresponding clamp is stored, and then controls one end of the switching mechanism to move to the bottom of the conveying mechanism, so that the switching mechanism transfers the required clamp from the conveying mechanism to the switching mechanism, thereby completing the automatic switching of the clamp, eliminating the tediousness and mistakes of manual replacement of the clamp, saving the changeover time, and greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the connection between the translation mechanism and the positioning base of the utility model;

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of the structure at A is shown;

[0020] Figure 4 It is a structural schematic diagram of the conveying mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the clamp of the utility model.

[0022] Among them: 1. Positioning base; 2. Storage rack; 3. Translation mechanism; 301. Translation bracket; 302. Servo motor; 303. Speed ​​reducer; 304. Rack; 4. Conveying mechanism; 401. Support frame; 402. Movable slot; 403. First support rod; 404. First cylinder positioning pin; 405. Conveying roller; 406. Motor; 407. Roller; 408. Roller bracket; 5. Clamp; 6. Switching mechanism; 601. Fixed frame; 602. Electric Telescopic cylinder; 603, connecting rod; 604, sliding rod; 7, limiting guide rail; 8, guide rail slide groove; 9, sliding block; 10, guide slide rail; 11, second cylinder locating pin; 12, third cylinder locating pin; 13, second support rod; 14, fourth cylinder locating pin; 15, conveying roller; 16, limiting block; 17, first docking track groove; 18, pulley block; 19, second docking track groove; 20, first locating hole; 21, second locating hole; 22, third locating hole. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Please refer to Figures 1 to 5 To achieve the above purpose, the utility model provides the following technical solutions:

[0025] A fast switching device for welding fixtures of automobile parts comprises a positioning base 1, wherein a storage rack 2 is arranged side by side on the side of the positioning base 1; a translation mechanism 3 is arranged above the positioning base 1, wherein the translation mechanism 3 is slidably connected with the positioning base 1; three groups of conveying mechanisms 4 are arranged equidistantly above the storage rack 2, wherein a fixture 5 is arranged above each conveying mechanism 4; a switching mechanism 6 is installed on the translation mechanism 3, wherein the switching mechanism 6 and the conveying mechanism 4 are at the same horizontal height. By placing three groups of fixtures 5 of different models on the conveying mechanism 4 respectively and fixing them by the conveying mechanism 4, when it is necessary to switch the fixtures 5 of different models, the translation mechanism 3 drives the switching mechanism 6 to move horizontally along the length direction of the positioning base 1 to the work station where the corresponding fixture 5 is stored, and then the switching mechanism 6 is controlled to be inserted under the conveying mechanism 4, so as to transfer the fixture 5 placed on the conveying mechanism 4 to the translation mechanism 3, thereby completing the automatic switching of the fixture 5, which not only saves the tediousness and mistakes of manually replacing the fixture, but also improves the accuracy of positioning, and greatly shortens the changeover time of the fixture 5.

[0026] See also Figure 2 As an embodiment of the utility model, the translation mechanism 3 includes a translation bracket 301, wherein the translation bracket 301 is horizontally arranged above the positioning base 1; a servo motor 302 is installed on one side of the translation bracket 301, and the output end of the servo motor 302 is connected to a reducer 303, wherein the output end of the reducer 303 is connected to a gear (not shown in the figure); a rack 304 is fixedly installed above the positioning base 1 along its length direction, wherein the rack 304 and the gear are meshed with each other; two sets of limiting guide rails 7 are symmetrically installed on both sides of the positioning base 1, wherein a guide rail slide groove 8 adapted to the limiting guide rail 7 is provided at the bottom of the translation bracket 301.

[0027] In the above-described scheme, the servo motor 302 drives the reducer 303 to drive the gear to rotate. Because the gear is meshed with the rack 304 installed on the positioning base 1, the servo motor 302 drives the translation bracket 301 to move horizontally along the length direction of the positioning base 1. During the movement of the translation bracket 301, the guide rail groove 8 arranged at the bottom of the translation bracket 301 will move in a straight line along the limiting guide rail 7 installed on the positioning base 1, thereby greatly improving the stability of the movement of the translation bracket 301.

[0028] See also Figure 4As an embodiment of the utility model, the conveying mechanism 4 includes a support frame 401, wherein the lower end of the support frame 401 is fixedly connected to the storage frame 2; a movable groove 402 is opened in the middle of the support frame 401, wherein a first support rod 403 is arranged in the middle of the movable groove 402; the first support rod 403 is fixedly connected to the support frame 401 through a connecting rod, wherein first cylinder locating pins 404 are respectively installed at both ends of the first support rod 403; two groups of conveying rollers 405 are symmetrically installed on the upper end of the support frame 401, wherein each conveying roller 405 is respectively connected to the motor 406 in transmission; a plurality of groups of rollers 407 are arranged on the side of the conveying roller 405 away from the movable groove 402, wherein each roller 407 is respectively fixedly connected to the support frame 401 through a roller bracket 408.

[0029] In the above-described scheme, by placing the clamps 5 of different types of vehicles on the corresponding support frame 401 respectively, the first cylinder locating pin 404 is controlled to be pushed upward, so that the pin head on the first cylinder locating pin 404 cooperates with the first locating hole 20 opened on the bottom plate of the clamp 5, and then the clamp 5 is fixed on the support frame 401; wherein the two groups of conveying rollers 405 arranged at the upper end of the support frame 401 are used to support the clamp 5. When the clamp 5 moves on the upper end of the support frame 401, the motor 406 is turned on to drive the conveying rollers 405 to rotate, thereby providing an efficient conveying effect for the horizontal movement of the clamp 5. At the same time, multiple groups of rollers 407 are installed on the outside of the conveying rollers 405, wherein the rollers 407 abut against the side of the clamp 5, thereby limiting the movement of the clamp 5. The cooperation between the conveying rollers 405 and the rollers 407 is conducive to improving the stability of the movement of the clamp 5 on the support frame 401.

[0030] Please refer to Figure 2 , Figure 3 As an embodiment of the utility model, the switching mechanism 6 includes a fixed frame 601, wherein the lower end of the fixed frame 601 is fixedly connected to the translation bracket 301; an electric telescopic cylinder 602 is provided above the fixed frame 601, wherein the top of the piston rod of the electric telescopic cylinder 602 is provided with a connecting rod 603; both ends of the connecting rod 603 are respectively connected to sliding rods 604, wherein the sliding rods 604 are located on both sides of the electric telescopic cylinder 602 and are arranged in parallel; a sliding block 9 is provided at the bottom of the sliding block 604, wherein both sides of the fixed frame 601 are respectively provided with guide rails 10 adapted to the sliding block 9.

[0031] In the above-described scheme, the electric telescopic cylinder 602 drives the piston rod to drive the connecting rod 603 to extend and retract, so that the connecting rod 603 drives the two sets of slide bars 604 to move horizontally. During the movement of the slide bar 604, the slider 9 arranged at the bottom of the slide bar 604 will move linearly along the guide rail 10 installed on the fixed frame 601, thereby greatly improving the stability of the electric telescopic cylinder 602 driving the slide bar 604 to move.

[0032] See also Figure 3 As an embodiment of the utility model, a second cylinder locating pin 11 and a third cylinder locating pin 12 are respectively provided on the slide bar 604, wherein the second cylinder locating pin 11 and the third cylinder locating pin 12 are diagonally arranged.

[0033] In the above scheme, a second cylinder locating pin 11 is provided on the slide bar 604 on one side of the electric telescopic cylinder 602, wherein the second cylinder locating pin 11 is arranged at one end close to the piston rod, and a third cylinder locating pin 12 is provided on the slide bar 604 on the other side of the electric telescopic cylinder 602, wherein the third cylinder locating pin 12 is arranged at one end away from the piston rod, and the second cylinder locating pin 11 and the third cylinder locating pin 12 are arranged diagonally on both sides of the electric telescopic cylinder 602. When the electric telescopic cylinder 602 drives the slide bar 604 to move The second cylinder locating pin 11 and the third cylinder locating pin 12 are inserted under the clamp 5, wherein the second cylinder locating pin 11 and the third cylinder locating pin 12 are respectively inserted into the second locating hole 21 and the third locating hole 22 opened on the bottom plate of the clamp 5, for positioning and fixing the clamp 5. When the electric telescopic cylinder 602 drives the slide rod 604 to retract and return to the initial position, the slide rod 604 will drive the clamp 5 to transfer from the support frame 401 to the translation bracket 301, thereby realizing the switching of the clamp 5.

[0034] See also Figure 3 As an embodiment of the utility model, a second support rod 13 is provided in the middle of the translation bracket 301, wherein the second support rod 13 is fixedly connected to the translation bracket 301 through a connecting rod; fourth cylinder locating pins 14 are respectively installed at both ends of the second support rod 13, wherein the spacing between two adjacent fourth cylinder locating pins 14 is the same as the spacing between two adjacent first cylinder locating pins 404; two groups of conveying rollers 15 are symmetrically installed above the translation bracket 301, wherein limit blocks 16 are respectively provided on the outer sides of the conveying rollers 15.

[0035] In the above-described scheme, the piston rod is driven to retract by the electric telescopic cylinder 602, so that the piston rod drives the slide rod 604 to retract and return to the initial position, so that the slide rod 604 drives the clamp 5 to be transferred from the support frame 401 to the translation bracket 301. When the clamp 5 contacts the upper surface of the translation bracket 301, the conveying roller 15 arranged above the translation bracket 301 provides support and efficient conveying effect for the movement of the clamp 5, thereby preventing the clamp 5 from colliding with the translation bracket 301 during the movement. At the same time, a limit block 16 is installed on the outer side of the conveying roller 15, which can provide guidance and limiting effects on the movement of the clamp 5, thereby further improving the stability of the movement of the clamp 5 on the translation bracket 301.

[0036] Please refer to Figure 1 , Figure 3 , Figure 4As an embodiment of the utility model, two groups of first docking track grooves 17 are symmetrically arranged at the lower inner side of the translation bracket 301, wherein a pulley group 18 is rollingly connected in the first docking track groove 17, and the pulley group 18 is fixedly connected to the slide rod 604; two groups of second docking track grooves 19 are symmetrically arranged on the inner side of the movable groove 402, wherein the second docking track groove 19 and the first docking track groove 17 are located at the same horizontal height and are connected end to end.

[0037] In the above-described scheme, when the electric telescopic cylinder 602 drives the slide rod 604 to move, the pulley block 18 fixed on the slide rod 604 will roll directly into the second docking track groove 19 along the first docking track groove 17, providing guidance and support for the movement of the slide rod 604, thereby improving the stability of the movement of the slide rod 604.

[0038] See also Figure 5 As an embodiment of the utility model, a first positioning hole 20, a second positioning hole 21 and a third positioning hole 22 are provided on the clamp 5, wherein the first positioning hole 20 corresponds to the positions of the first cylinder positioning pin 404 and the fourth cylinder positioning pin 14 respectively; the second positioning hole 21 corresponds to the position of the second cylinder positioning pin 11, and the third positioning hole 22 corresponds to the position of the third cylinder positioning pin 12.

[0039] To sum up: by placing three groups of clamps 5 of different types of vehicles on the support frame 401 respectively, and cooperating with the first positioning hole 20 opened on the clamp 5 through the first cylinder positioning pin 404 to fix the clamp 5 on the conveying mechanism 4, according to the use requirements of the clamp 5, when it is necessary to switch the clamp 5, firstly, the servo motor 302 is used to drive the translation bracket 301 to move horizontally along the length direction of the positioning base 1 to the work position where the clamp 5 is required to be switched, and then the electric telescopic cylinder 602 is controlled to drive the piston rod to extend forward, so that the piston rod drives the two sliding rods 604 to move forward and directly extend into the movable groove 402 opened in the middle of the support frame 401, so that the second cylinder positioning pin 11 and the third cylinder positioning pin 12 respectively installed on the two sliding rods 604 move to the bottom of the clamp 5, and correspond one by one to the second positioning hole 21 and the third positioning hole 22 opened on the bottom plate of the clamp 5, at this time, the electric telescopic cylinder 602 stops working; then the second cylinder positioning pin 11 and the third cylinder positioning pin 12 are driven to push upward at the same time The electric telescopic cylinder 602 is then started to drive the piston rod to retract, and the piston rod is retracted and the slide bar 604 is driven to return to the initial position, thereby causing the slide bar 604 to drive the clamp 5 to transfer from the support frame 401 to the translation support 301. As the clamp 5 moves smoothly, when the first positioning hole 20 provided on the clamp 5 corresponds to the fourth cylinder positioning pin 14, the electric telescopic cylinder 602 stops working. Then, the second cylinder positioning pin 11 and the third cylinder positioning pin 12 are controlled to retract downward, so that the pin heads are separated from the second positioning hole 21 and the third positioning hole 22 respectively. Then, the fourth cylinder positioning pin 14 is controlled to push upward and insert into the first positioning hole 20, thereby fixing the clamp 5 on the translation support 301, and completing the automatic switching of the clamp 5, with fast switching speed and high working efficiency.

[0040] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A fast switching device for welding fixtures of automobile parts, comprising a positioning base (1), wherein a storage rack (2) is arranged side by side on the side of the positioning base (1); characterized in that: A translation mechanism (3) is provided above the positioning base (1), wherein the translation mechanism (3) is slidably connected to the positioning base (1); three groups of conveying mechanisms (4) are equidistantly provided above the storage rack (2), wherein a clamp (5) is provided above each conveying mechanism (4); a switching mechanism (6) is installed on the translation mechanism (3), wherein the switching mechanism (6) and the conveying mechanism (4) are located at the same horizontal height.

2. The rapid switching device for welding fixtures of automobile parts according to claim 1 is characterized in that: The translation mechanism (3) comprises a translation bracket (301), wherein the translation bracket (301) is arranged transversely above the positioning base (1); a servo motor (302) is installed on one side of the translation bracket (301), the output end of the servo motor (302) is connected to a reducer (303), wherein the output end of the reducer (303) is connected to a gear; a rack (304) is fixedly installed above the positioning base (1) along its length direction, wherein the rack (304) and the gear are meshed with each other.

3. The rapid switching device for welding fixtures of automobile parts according to claim 1 is characterized in that: The conveying mechanism (4) comprises a support frame (401), wherein the lower end of the support frame (401) is fixedly connected to the storage frame (2); a movable groove (402) is provided in the middle of the support frame (401), wherein a first support rod (403) is provided in the middle of the movable groove (402); the first support rod (403) is fixedly connected to the support frame (401) via a connecting rod, wherein first cylinder positioning pins (404) are respectively installed at both ends of the first support rod (403).

4. The rapid switching device for welding fixtures of automobile parts according to claim 3 is characterized in that: Two groups of conveying rollers (405) are symmetrically mounted on the upper end of the support frame (401), wherein a plurality of groups of rollers (407) are disposed on the side of the conveying rollers (405) away from the movable groove (402).

5. The rapid switching device for welding fixtures of automobile parts according to claim 1 is characterized in that: The switching mechanism (6) comprises a fixed frame (601), wherein the lower end of the fixed frame (601) is fixedly connected to the translation support (301); an electric telescopic cylinder (602) is arranged above the fixed frame (601), wherein a connecting rod (603) is arranged at the top of the piston rod of the electric telescopic cylinder (602); both ends of the connecting rod (603) are respectively connected to sliding rods (604), wherein the sliding rods (604) are located on both sides of the electric telescopic cylinder (602) and are arranged in parallel; a sliding block (9) is arranged at the bottom of the sliding block (604), wherein both sides of the fixed frame (601) are respectively provided with guide rails (10) adapted to the sliding block (9).

6. The automobile parts welding fixture quick switching device according to claim 5 is characterized in that: The slide bar (604) is provided with a second cylinder positioning pin (11) and a third cylinder positioning pin (12), respectively, wherein the second cylinder positioning pin (11) and the third cylinder positioning pin (12) are arranged diagonally.

7. The rapid switching device for welding fixtures of automobile parts according to claim 2 is characterized in that: A second support rod (13) is provided in the middle of the translation support (301), wherein the second support rod (13) is fixedly connected to the translation support (301) via a connecting rod; fourth cylinder positioning pins (14) are respectively installed at both ends of the second support rod (13).

8. The automobile parts welding fixture quick switching device according to claim 7 is characterized in that: Two groups of conveying rollers (15) are symmetrically mounted above the translation bracket (301), wherein a limit stopper (16) is disposed on the outer side of the conveying rollers (15).

9. The automobile parts welding fixture quick switching device according to claim 1, characterized in that: A first positioning hole (20), a second positioning hole (21) and a third positioning hole (22) are provided on the bottom plate of the clamp (5).

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