Electronic control clamp for automobile welding part machining

Abstract

The invention discloses an electric control clamp for automobile welding part machining, and relates to the technical field of part clamps, the electric control clamp comprises a supporting assembly, and a clamping assembly is arranged in the supporting assembly. According to the electric control clamp for machining the automobile welding parts, a driving motor is started to enable an output shaft of the driving motor to rotate, so that a connecting rod is driven to rotate in a limiting ring, due to the fact that four faces of a rotating worm are meshed with four gears at the same time, when the rotating worm rotates along with the connecting rod, the four gears are driven to rotate; wherein four gears are connected with four third movable rods correspondingly, the gears can drive the third movable rods to rotate with the centers of the gears as the circle centers when rotating, and under movable connection of the second movable rods to the first movable rods and the third movable rods, the four second movable rods can move towards the middle at the same time; or the clamping blocks move towards the four sides at the same time, and during clamping, the clamping blocks can clamp the automobile parts.

Description

Technical Field

[0001] The invention relates to the technical field of component fixtures, in particular to an electric control fixture for processing automobile welding components. Background Art

[0002] Automobile welding parts refer to the individual components that constitute the overall structure of the automobile or its various subsystems. These parts are connected together through welding processes during the manufacturing process to form the frame, body and various functional components of the automobile. Welding is a permanent connection method that can tightly combine the parts to ensure the strength and stability of the automobile during operation. With the development of industrial automation, more and more automobile welding production lines use automated welding fixtures. These fixtures can be used in conjunction with robots, automated conveying equipment, etc. to realize the automation of the welding process, improve production efficiency and welding quality, and reduce manual labor intensity.

[0003] In the prior art, such as the Chinese patent number: CN112171146A, an electric control fixture for processing automobile welding parts and a method of using the same are disclosed, including a supporting foot, a workbench, a main support platform group, a clamping mechanism, a clamping head and a transverse clamping mechanism, the upper end of the supporting foot is fixedly connected to the workbench, a mounting plate is fixedly connected to the outer side of the upper end of the workbench, a linear module is fixedly connected to the left side of the upper end of the mounting plate, the upper end of the linear module is slidably connected to the clamping mechanism, the right side of the upper end of the mounting plate is fixedly connected to the clamping mechanism, and the right side of the upper end of the workbench is fixedly connected to a control panel. In the present invention, by setting the clamping mechanism, linear module, clamping head and transverse clamping mechanism, the parts can be clamped and fixed in both the vertical and horizontal directions, and at the same time, they can play a buffering role to prevent the surface of the parts from being damaged due to excessive clamping force, thereby protecting the surface of the parts.

[0004] However, in the prior art, the use of automated clamping of automobile parts to be welded improves the clamping stability. However, in the welding of automobile parts, the welding temperature is extremely high. Long-term high-temperature operation will cause deformation of the clamp part. Due to the influence of thermal stress, the parts are prone to slight displacement, especially when connecting and welding parts such as automobile frames, which will affect the welding quality. However, the current clamp cannot detect whether there is deformation and cannot automatically compensate for the displacement.

[0005] Therefore, we propose an electric control fixture for processing automobile welding parts to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide an electric control clamp for processing automobile welding parts, so as to solve the problem that the deformation caused by high temperature when clamping the automobile frame of the existing clamp mentioned in the background art cannot be monitored.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric-controlled clamp for processing automobile welding parts, comprising a support assembly, a clamping assembly is arranged inside the support assembly, and the clamping assembly includes a connecting frame, four sides of the connecting frame are fixedly connected to a first fixed shaft near the top, the outsides of the four first fixed shafts are rotatably connected to a first movable rod, one end of the four first movable rods is rotatably connected to a second movable rod through a first bolt, one side of the four second movable rods is fixedly connected to two clamping blocks near the top, a strain gauge is arranged on the outer surface of each clamping block, and the strain gauge is used to monitor the deformation of the clamping block.

[0008] Preferably, the bottom ends of the four second movable rods are rotatably connected to the third movable rods via second bolts, and the four sides of the connecting frame near the bottom are fixedly connected to the second fixed shafts.

[0009] Preferably, the outsides of the four second fixed shafts are rotatably connected with gears, one end of each of the third movable rods is rotatably connected to the outside of each second fixed shaft, and each of the first movable rods is arranged parallel to each of the third movable rods.

[0010] Preferably, a rotating groove is opened at the bottom of the connecting frame, the bottom of the rotating groove is fixedly connected to a limiting ring, the inner wall of the limiting ring is rotatably connected to a connecting rod, the top of the connecting rod is fixedly connected to a rotating worm, and the outer surface of the rotating worm is meshingly connected to the outer surfaces of four gears.

[0011] Preferably, a driving motor is disposed on the outer surface of the fixing plate, and an output shaft of the driving motor is fixedly connected to the bottom end of the connecting rod.

[0012] Preferably, the support assembly includes a support platform, and the support platform is used to support and fix the clamping assembly, and four movable grooves are formed on the top of the support platform.

[0013] Preferably, a support frame is fixedly connected to the bottom of the support platform, and the support frame is used to support the support platform, and a fixing plate is fixedly connected to the bottom of the support platform.

[0014] Preferably, a mounting plate is fixedly connected to the outer surface of the support platform, a controller is arranged on the outer surface of the mounting plate, and the controller is used to control the start, stop and operation of the equipment.

[0015] Preferably, a positioning component is fixedly embedded in the middle of the top of the support platform, and the positioning component includes a positioning plate, and a plurality of fixing grooves are formed on the top of the positioning plate.

[0016] Preferably, fixing springs are provided on the inner bottom surfaces of the plurality of fixing grooves, the top end of each fixing spring is fixedly connected with a positioning rod, the outer surface of each positioning rod is slidably connected to the inner wall of each fixing groove, and the positioning rod is used to limit the base of the component.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the driving motor is started to rotate its output shaft, thereby driving the connecting rod to rotate inside the limit ring. Since the four faces of the rotating worm are engaged with the four gears at the same time, when the rotating worm follows the connecting rod to rotate, it will drive the four gears to rotate, wherein the four gears are respectively connected to the four third movable rods. Then, when the gears rotate, they will drive the third movable rods to rotate with the center of the gears as the center of the circle. Under the active connection of the second movable rod to the first movable rod and the third movable rod, the four second movable rods will move to the middle at the same time, or move to the four sides at the same time. When clamping, the clamping block will clamp the auto parts, and the clamping operation is controlled by electricity, thereby achieving the benefit of saving manpower.

[0018] 2. During use, after a long period of welding, the clamp will continue to be in a high temperature environment. At this time, the shape of the clamp is monitored by a strain gauge. When the shape of the clamp is deformed, the strain gauge will convert the strain of the component into an electrical quantity, thereby achieving the effect of automatic monitoring, and transmit the monitoring results to the controller, which controls the drive motor to run, thereby achieving the effect of automatic compensation of displacement. In addition, when installing the strain gauge, the surface of the clamp must first be cleaned and polished, and then the strain gauge must be carefully pasted on the surface of the clamp with an adhesive. The lead wire of the strain gauge needs to be connected to the measurement circuit, and the wiring must be properly insulated to prevent external interference.

[0019] 3. When in use, the clamping assembly is installed inside the support table to ensure the stability of the automobile parts during welding. The support frame is fixedly installed on the bottom of the support table to support the entire welded clamping assembly part and the clamped automobile parts part. The positioning plate is fixed in the middle of the support table so that smaller automobile parts can be placed on the top of the positioning plate. When the base of the small-sized automobile parts is placed on the top of the positioning plate, the positioning rod at the corresponding position will be pressed downward, so that the positioning rod is inserted into the corresponding fixing groove, and the positioning rod that is not pressed will bounce upward under the elastic action of the fixing spring, thereby limiting the side part of the automobile parts and improving the stability of the automatic clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front perspective view of an electric control fixture for processing automobile welding parts according to the present invention; Figure 2 This is a bottom-up stereoscopic diagram of an electric-controlled fixture for processing automobile welding parts according to the present invention; Figure 3 This is a top perspective view of an electric control fixture for processing automobile welding parts according to the present invention; Figure 4 This is a perspective view of the partial structure of the positioning assembly of an electric control fixture for processing automobile welding parts of the present invention; Figure 5 This is a partial cutaway perspective view of a support assembly of an electric-controlled fixture for processing automobile welding parts according to the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a front perspective view of a clamping assembly portion of an electric-controlled clamp for processing automobile welding parts of the present invention; Figure 8 The present invention is a three-dimensional diagram of the partial structure of a clamping assembly of an electric-controlled clamp for processing automobile welding parts.

[0021] In the figure: 1. Support assembly; 101. Support table; 102. Support frame; 103. Fixed plate; 104. Movable groove; 2. Clamping assembly; 201. Connecting frame; 202. Rotating groove; 203. Driving motor; 204. Connecting rod; 205. Limiting ring; 206. Rotating worm; 207. First fixed shaft; 208. First movable rod; 209. Second movable rod; 210. Clamping block; 211. Third movable rod; 212. Second fixed shaft; 213. Gear; 214. Strain gauge; 3. Positioning assembly; 301. Positioning plate; 302. Fixed groove; 303. Fixed spring; 304. Positioning rod; 4. Mounting plate; 5. Controller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Reference Figure 1 - Figure 8As shown, the present invention provides a technical solution: an electric control fixture for processing automobile welding parts, comprising a support component 1, a clamping component 2 is arranged inside the support component 1, the clamping component 2 includes a connecting frame 201, four sides of the connecting frame 201 are fixedly connected to the first fixed shaft 207 near the top, the outsides of the four first fixed shafts 207 are rotatably connected to the first movable rods 208, one end of the four first movable rods 208 is rotatably connected to the second movable rod 209 through a first bolt, one side of the four second movable rods 209 is fixedly connected to two clamping blocks 210 near the top, a strain gauge 214 is arranged on the outer surface of each clamping block 210, and the strain gauge 214 is used to monitor the deformation of the clamping block 210, the bottom ends of the four second movable rods 209 are rotatably connected to the third movable rod 211 through a second bolt, the four sides of the connecting frame 201 are fixedly connected to the second fixed shaft 212 near the bottom, and the four second fixed shafts 21 2 are all rotatably connected with gears 213 on the outside, one end of each third movable rod 211 is respectively rotatably connected with the outside of each second fixed shaft 212, each first movable rod 208 is respectively arranged in parallel with each third movable rod 211, a rotating groove 202 is opened at the bottom of the connecting frame 201, the bottom of the rotating groove 202 is fixedly connected with a limiting ring 205, the inner wall of the limiting ring 205 is rotatably connected with a connecting rod 204, the top of the connecting rod 204 is fixedly connected with a rotating vortex rod 206, the outer surface of the rotating vortex rod 206 is meshed with the outer surfaces of the four gears 213, a driving motor 203 is arranged on the outer surface of the fixing plate 103, the output shaft of the driving motor 203 is fixedly connected with the bottom end of the connecting rod 204, the bottom of the supporting platform 101 is fixedly connected with the fixing plate 103, the outer surface of the supporting platform 101 is fixedly connected with the mounting plate 4, the outer surface of the mounting plate 4 is arranged with a controller 5, and the controller 5 is used to control the start, stop and operation of the equipment.

[0024] In this embodiment, when in use, the limiting ring 205 is first fixedly installed on the inner wall of the rotating groove 202 near the bottom position, so as to limit the connecting rod 204, and by starting the driving motor 203, the output shaft thereof rotates, thereby driving the connecting rod 204 to rotate inside the limiting ring 205. Since the four surfaces of the rotating worm rod 206 are engaged with the four gears 213 at the same time, when the rotating worm rod 206 rotates following the connecting rod 204, the four gears 213 will be driven to rotate, wherein the four gears 213 are respectively connected to the four third movable rods 211, then when the gear 213 rotates, it will drive the third movable rod 211 to rotate with the center of the gear 213 as the center of the circle. Under the active connection between the second movable rod 209 and the first movable rod 208 and the third movable rod 211, the four second movable rods 209 will move to the middle at the same time, or move to the four sides at the same time, and the clamping During the welding, the clamp block 210 will clamp the automobile parts, and the clamping operation is controlled by electricity, which saves manpower. After a long period of welding, the clamp block 210 will continue to be in a high temperature environment. At this time, the shape of the clamp block 210 is monitored by the strain gauge 214. When the shape of the clamp block 210 is deformed, the strain gauge 214 will convert the strain of the component into an electrical quantity, thereby achieving the effect of automatic monitoring, and transmit the monitoring result to the controller 5, which controls the drive motor 203 to run, thereby achieving the effect of automatic compensation of displacement. In addition, when installing the strain gauge 214, the surface of the clamp block 210 must first be cleaned and polished, and then the strain gauge 214 must be carefully pasted on the surface of the clamp block 210 with an adhesive. The lead wire of the strain gauge 214 needs to be connected to the measurement circuit, and the wiring point must be properly insulated to prevent external interference.

[0025] Embodiment 2: Figure 1 - Figure 8 As shown, the support component 1 includes a support platform 101, and the support platform 101 is used to support and fix the clamping component 2. Four movable grooves 104 are opened on the top of the support platform 101. The bottom of the support platform 101 is fixedly connected with a support frame 102, and the support frame 102 is used to support the support platform 101. The bottom of the support platform 101 is fixedly connected with a fixing plate 103. The outer surface of the support platform 101 is fixedly connected with a mounting plate 4. The outer surface of the mounting plate 4 is provided with a controller 5, and the controller 5 is used to control the start and stop and operation of the equipment. A positioning component 3 is fixedly embedded in the middle of the top of the support platform 101. The positioning component 3 includes a positioning plate 301. The top of the positioning plate 301 is provided with a plurality of fixing grooves 302. The inner bottom surfaces of the plurality of fixing grooves 302 are all provided with fixing springs 303. The top of each fixing spring 303 is fixedly connected with a positioning rod 304. The outer surface of each positioning rod 304 is respectively slidably connected to the inner wall of each fixing groove 302, and the positioning rod 304 is used to limit the base of the component.

[0026] In this embodiment, when in use, the clamping assembly 2 is installed inside the support platform 101 to ensure the stability of the automobile parts during welding. The support frame 102 is fixedly installed on the bottom of the support platform 101, so as to support the entire welded clamping assembly 2 and the clamped automobile parts. The controller 5 is electrically connected to the drive motor 203 and the strain gauge 214, and the controller 5 controls the start and stop and operation of the drive motor 203 and the strain gauge 214. The function of the mounting plate 4 is to install the controller 5. By fixing the positioning plate 301 in the middle of the support platform 101, the automobile parts with smaller specifications can be placed on the top of the positioning plate 301. When the base of the automobile parts with small specifications is placed on the top of the positioning plate 301, the positioning rod 304 at the corresponding position will be pressed downward, so that the positioning rod 304 is inserted into the corresponding fixing groove 302, and the positioning rod 304 that is not pressed will bounce upward under the elastic action of the fixing spring 303, thereby limiting the side part of the automobile parts and improving the stability of automatic clamping.

[0027] The method of use and working principle of the device: When in use, the clamping assembly 2 is installed inside the support platform 101 to ensure the stability of the automobile parts during welding. The support frame 102 is fixedly installed on the bottom of the support platform 101, so as to support the entire welded clamping assembly 2 and the clamped automobile parts. The controller 5 is electrically connected to the drive motor 203 and the strain gauge 214, and the controller 5 controls the start, stop and operation of the drive motor 203 and the strain gauge 214. The function of the mounting plate 4 is to install the controller 5. By fixing the positioning plate 301 in the middle of the support platform 101 When the base of the small-sized automobile component is placed on the top of the positioning plate 301, the positioning rod 304 at the corresponding position will be pressed downward, so that the positioning rod 304 is inserted into the corresponding fixing groove 302, and the positioning rod 304 that is not pressed will bounce upward under the elastic action of the fixing spring 303, thereby limiting the side part of the automobile component. When in use, the limiting ring 205 is first fixedly installed on the inner wall of the rotating groove 202 near the bottom, thereby limiting the connecting rod 204, and by starting the driving motor 203, the transmission The output shaft rotates, thereby driving the connecting rod 204 to rotate inside the limiting ring 205. Since the four surfaces of the rotating worm 206 are meshed with the four gears 213 at the same time, when the rotating worm 206 rotates with the connecting rod 204, the four gears 213 will be driven to rotate, wherein the four gears 213 are respectively connected to the four third movable rods 211. Then, when the gear 213 rotates, it will drive the third movable rod 211 to rotate with the center of the gear 213 as the center of the circle. Under the active connection between the second movable rod 209 and the first movable rod 208 and the third movable rod 211, the four second movable rods 209 will be simultaneously Move to the middle, or move to four sides at the same time. When clamping, the clamp block 210 will clamp the automobile parts. The clamping operation is controlled by electricity, which saves manpower. After a long period of welding, the clamp block 210 will continue to be in a high temperature environment. At this time, the shape of the clamp block 210 is monitored by the strain gauge 214. When the shape of the clamp block 210 is deformed, the strain gauge 214 will convert the strain of the component into an electrical quantity, thereby achieving an automatic monitoring effect, and transmitting the monitoring result to the controller 5, which controls the drive motor 203 to run, thereby achieving an automatic compensation displacement effect.

[0028] The wiring diagram of the drive motor 203, strain gauge 214 and controller 5 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the drive motor 203, strain gauge 214 and controller 5 will not be explained in detail.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric-controlled fixture for processing automobile welding parts, comprising a support assembly (1), wherein a clamping assembly (2) is arranged inside the support assembly (1), characterized in that: The clamping assembly (2) comprises a connecting frame (201), four sides of the connecting frame (201) are fixedly connected to a first fixed shaft (207) near the top, the outsides of the four first fixed shafts (207) are rotatably connected to a first movable rod (208), one end of the four first movable rods (208) is rotatably connected to a second movable rod (209) via a first bolt, one side of the four second movable rods (209) is fixedly connected to two clamping blocks (210) near the top, and a strain gauge (214) is provided on the outer surface of each clamping block (210), and the strain gauge (214) is used to monitor the deformation of the clamping block (210).

2. The electrically controlled fixture for processing automobile welding parts according to claim 1 is characterized in that: The bottom ends of the four second movable rods (209) are rotatably connected to the third movable rod (211) via second bolts, and the four sides of the connecting frame (201) near the bottom are fixedly connected to second fixed shafts (212).

3. The electrically controlled fixture for processing automobile welding parts according to claim 2 is characterized in that: The outsides of the four second fixed shafts (212) are all rotatably connected to gears (213), one end of each of the third movable rods (211) is rotatably connected to the outside of each second fixed shaft (212), and each of the first movable rods (208) is arranged in parallel with each of the third movable rods (211).

4. The electrically controlled fixture for processing automobile welding parts according to claim 3 is characterized in that: A rotating groove (202) is provided at the bottom of the connecting frame (201); a limit ring (205) is fixedly connected to the bottom of the rotating groove (202); a connecting rod (204) is rotatably connected to the inner wall of the limit ring (205); a rotating worm (206) is fixedly connected to the top of the connecting rod (204); and the outer surface of the rotating worm (206) is meshingly connected to the outer surfaces of four gears (213).

5. The electrically controlled fixture for processing automobile welding parts according to claim 4 is characterized in that: A driving motor (203) is disposed on the outer surface of the fixing plate (103), and an output shaft of the driving motor (203) is fixedly connected to the bottom end of the connecting rod (204).

6. The electrically controlled fixture for processing automobile welding parts according to claim 5, characterized in that: The support assembly (1) comprises a support platform (101), and the support platform (101) is used to support and fix the clamping assembly (2), and four movable grooves (104) are provided on the top of the support platform (101).

7. The electrically controlled fixture for processing automobile welding parts according to claim 6, characterized in that: The bottom of the support platform (101) is fixedly connected to a support frame (102), and the support frame (102) is used to support the support platform (101), and the bottom of the support platform (101) is fixedly connected to a fixing plate (103).

8. The electrically controlled fixture for processing automobile welding parts according to claim 7, characterized in that: The outer surface of the support platform (101) is fixedly connected to a mounting plate (4), and a controller (5) is arranged on the outer surface of the mounting plate (4), and the controller (5) is used to control the start, stop and operation of the equipment.

9. The electrically controlled fixture for processing automobile welding parts according to claim 8, characterized in that: A positioning component (3) is fixedly embedded in the middle of the top of the support platform (101), wherein the positioning component (3) comprises a positioning plate (301), and a plurality of fixing grooves (302) are formed on the top of the positioning plate (301).

10. The electrically controlled fixture for processing automobile welding parts according to claim 9, characterized in that: A fixing spring (303) is disposed on the inner bottom surface of each of the fixing grooves (302); a top end of each of the fixing springs (303) is fixedly connected to a positioning rod (304); an outer surface of each of the positioning rods (304) is slidably connected to an inner wall of each of the fixing grooves (302); and the positioning rods (304) are used to limit the base of the component.

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