A fixture for a welding apparatus having an automatic positioning function

Abstract

The utility model relates to a welding equipment clamp with automatic positioning function relates to welding equipment clamp tooling technical field, slide rail is two, and parallel setting fixed setting on the frame, and the mounting seat sliding sleeve sets up on the slide rail, and the clamp fixed setting is on the mounting seat, and the moving drive part sets up on the mounting seat, and the positioning piece sets up on the mounting seat, it sets up a plurality of positioning intervals to the long stroke section of equipment, and through the gear and rack structure cooperation motor carries out the long stroke movement of equipment clamp, and the positioning locking of corresponding interval, then through the accurate positioning structure of clamp self -carrying again carries out the positioning of clamping work piece, thereby is favorable to the long stroke movement of equipment work, and can carry out the fine adjustment positioning after moving, has reduced the use of equipment to precision component, has guaranteed the positioning accuracy of equipment under the long stroke movement simultaneously.

Description

Technical Field

[0001] This invention relates to the field of fixtures and tooling technology for welding equipment, and specifically to a fixture for welding equipment with automatic positioning function. Background Technology

[0002] Automated welding machines use fixtures to clamp and position workpieces. In existing equipment, a lead screw and servo motor are often used for precise positioning. This positioning structure is not suitable for long-stroke movements. When faced with long-stroke movements, a very long adjustment time is required. Moreover, with the increase of such movements, the equipment will wear out quickly, causing positioning inaccuracies. There are also devices that use stepper motors and support wheels to directly drive the fixture. However, such devices require very advanced stepper motors to control the stroke and require the addition of very precise positioning sensors, which will significantly increase the equipment cost. Therefore, it is necessary to design a welding machine fixture that is convenient for long-stroke movements and can perform precise fine-tuning positioning to address the above problems. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a welding equipment fixture with automatic positioning function. This fixture sets multiple positioning intervals for the long-stroke sections of the equipment and uses a gear and rack structure in conjunction with a motor to perform long-stroke movement of the fixture and locking of the corresponding intervals. Then, the fixture's built-in precision positioning structure positions the workpiece, thus facilitating long-stroke movement of the equipment during operation and enabling fine-tuning of the positioning after movement. This reduces the use of precision components while ensuring positioning accuracy during long-stroke movement.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions: It includes a frame, slide rails, and mounting base. Two slide rails are arranged parallel to each other and fixedly mounted on the frame. The mounting base is slidably fitted onto the slide rails, and a clamp is fixedly mounted on the mounting base. It also includes: A movable drive component, wherein the movable drive component is mounted on a mounting base; A positioning element, wherein the positioning element is disposed on a mounting base; In use, the frame is installed on the welding equipment, the fixture is fixed on the mounting base, and the workpiece is clamped by the fixture. When adjusting the position of the workpiece, the mounting base is first moved to the corresponding positioning range by the moving drive component, and then the mounting base is positioned by the positioning component. While positioning the mounting base, the mounting base slides on the moving drive component. After positioning is completed, the mounting base is locked in place. Then, the workpiece is moved by the moving mechanism of the fixture to achieve fine-tuning positioning of the workpiece within the positioning range.

[0005] Preferably, the moving drive component comprises: The load-bearing frame is fixedly mounted on the base plate of the machine frame, and the ends of the load-bearing frame are fixedly mounted on the side plates of the machine frame. The support rack consists of four racks, arranged in pairs in parallel front and back, with the two racks in the same pair symmetrically fixed on the load-bearing frame. A load-bearing shaft seat, wherein the load-bearing shaft seat is fixedly mounted on the lower surface of the mounting base; A drive shaft, wherein the drive shaft is screwed onto a load-bearing shaft seat via bearings; The drive gears are two in number and are both mounted and fixed on the transmission shaft. The drive gears mesh with the support rack on the upper surface of the load-bearing frame. The drive motor is fixedly mounted on the lower surface of the mounting base, and the output shaft of the drive motor is connected to the rear end of the transmission shaft. In use, the drive motor drives the transmission shaft to rotate, the transmission shaft drives the drive gear to rotate, the drive gear slides on the support rack, which in turn drives the load-bearing shaft seat to move, and the load-bearing shaft seat drives the mounting seat to move, and the mounting seat slides on the slide rail.

[0006] Preferably, the mounting base is symmetrically fixed with connecting frames at the front and rear, and the connecting frames are symmetrically mounted on the front and rear sides of the load-bearing frame. The connecting frames are symmetrically arranged with clamping plates at the top and bottom, and the clamping plates are screwed onto the connecting frames through bearings. A pad is fixedly arranged on the side of the clamping plate facing the supporting rack. The clamping plates on the upper and lower sides are respectively abutted against the supporting racks on the upper and lower sides through the pads. A transmission gear is fixedly arranged on the rotating shaft of the clamping plate. The transmission gears on the upper and lower sides are meshed with each other. A clamping electric push rod is fixedly arranged on the lower surface of the mounting base. A guide groove is fixedly arranged on the lower end shaft of the clamping electric push rod. A pin is fixedly arranged on the upper clamping plate. The pin is movably arranged in the guide groove. During use, when the mounting base moves, the guide groove is lifted upward by clamping the electric push rod. The guide groove then drives the clamping plate located above the load-bearing frame to rotate via the pin. The rotation of the clamping plate causes the pad to lift and disengage from the support rack. The upper and lower clamping plates are connected by a transmission gear, causing the upper and lower clamping plates to move synchronously in opposite directions. The lower clamping plate then causes the pad to disengage from the lower support rack, allowing the drive gear to slide on the support rack, thus moving the mounting base. After the mounting base has moved and been positioned by the positioning component, the guide groove is pushed downward by clamping the electric push rod. The guide groove then drives the clamping plate to rotate via the pin. The clamping plate uses the pad to press against the support rack for limit locking, thus limiting and locking the mounting base and the support rack.

[0007] Preferably, the positioning element comprises: The positioning frame is located behind the mounting base, and the left and right ends of the positioning frame are fixedly mounted on the side plates of the frame. Several positioning slots are equidistantly provided on the front end of the upper surface of the positioning frame. A positioning electric push rod is fixedly mounted on the upper surface of the mounting base; The positioning seat is fixedly mounted on the rear end shaft of the positioning electric push rod; The guide wheel is screwed onto the positioning seat via a bearing, and the guide wheel is configured to cooperate with the positioning groove. In use, the drive motor first moves the mounting base to the designated positioning range. Then, the positioning electric push rod pushes the positioning seat to move, and the positioning seat drives the guide wheel to move to the positioning groove range. The guide wheel slides against the side wall of the positioning groove and guides it. Then, the guide wheel drives the mounting base to move through the positioning seat and the positioning electric push rod. Finally, the positioning groove and the guide wheel cooperate to position the mounting base.

[0008] Preferably, a guide rod is fixedly provided on the mounting base, the guide rod is movably inserted through the positioning seat, and the lower surface of the positioning seat is movably abutted against the upper surface of the mounting base.

[0009] Preferably, the rear surface of the mounting base is integrally formed with a protrusion, and the front surface of the positioning frame is provided with a groove, and the protrusion is slidably disposed in the groove.

[0010] Preferably, the slide rail includes a transverse wing plate and two vertical wing plates, wherein the vertical wing plates of the slide rail are fixedly disposed on the lower surface of the transverse wing plate of the slide rail.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. The mounting base is mounted on the frame via a slide rail, and the fixture is then installed on the mounting base. The mounting base is equipped with a drive gear, and the frame is equipped with a support rack. The rotation of the drive gear drives the mounting base to move on the slide rail. The frame is equipped with a positioning frame with a positioning groove, and the mounting base is equipped with a guide wheel. The guide wheel cooperates with the positioning groove to realize the movement of the mounting base and its positioning within the corresponding positioning range. 2. A drive motor is installed on the mounting base and is connected to the drive gear through a transmission shaft. The drive gear and the support rack then drive the movement of the mounting base, which is suitable for long-stroke, fast-moving drive of the mounting base. 3. The mounting base is equipped with a positioning seat and guide wheels via a positioning electric push rod. The frame is equipped with a positioning frame with several positioning slots. The guide wheels slide within the positioning slots to achieve positioning and locking of the mounting base in the corresponding positioning slot. This facilitates the positioning and locking of the mounting base in the corresponding range, making it convenient for subsequent fine-tuning of the fixture. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 yes Figure 1 The right front view.

[0014] Figure 3 yes Figure 1 Left rear view.

[0015] Figure 4 yes Figure 1 Front view.

[0016] Figure 5 yes Figure 1 Top view.

[0017] Figure 6 yes Figure 5 AA section view in the image.

[0018] Figure 7 yes Figure 5 BB section view in the middle.

[0019] Figure 8 This is a schematic diagram of the clamping plate in this invention.

[0020] Figure 9 This is a schematic diagram of the guide groove in this invention. Explanation of reference numerals in the attached figures: 1. Frame; 2. Slide rail; 3. Mounting base; 4. Moving drive component; 4-1. Load-bearing frame; 4-2. Support rack; 4-3. Load-bearing shaft seat; 4-4. Transmission shaft; 4-5. Drive gear; 4-6. Drive motor; 5. Positioning component; 5-1. Positioning bracket; 5-2. Positioning electric push rod; 5-3. Positioning seat; 5-4. Guide wheel; 5-5. Connecting frame; 6. Clamping plate; 7. Pad; 8. Transmission gear; 9. Clamping electric push rod; 10. Guide groove; 11. Pin; 12. Guide rod; 13. Protrusion; 14. Groove; 15. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: like Figure 1 , 2As shown in Figures 1 and 3, this embodiment includes a frame 1, slide rails 2, and mounting base 3. There are two slide rails 2, arranged parallel to each other and fixedly mounted on the frame 1. The mounting base 3 is slidably fitted onto the slide rails 2, and a clamp is fixedly mounted on the mounting base 3. It also includes: The movable drive component 4 is mounted on the mounting base 3; Positioning element 5, wherein the positioning element 5 is disposed on the mounting base 3; The slide rail 2 is formed by splicing and welding a horizontal wing plate and two vertical wing plates. The slide rail 2 is in the shape of "U", thereby strengthening the vertical compressive strength of the slide rail 2. With the above design, when in use, the frame 1 is installed on the welding equipment, the fixture is fixed on the mounting base 3, and the workpiece is clamped by the fixture. When adjusting the position of the workpiece, the mounting base 3 is first moved to the corresponding positioning range by the moving drive component 4, and then the mounting base 3 is positioned by the positioning component 5. When positioning the mounting base 3, the mounting base 3 slides on the moving drive component 4. After positioning is completed, the mounting base 3 is locked in position. Then, the workpiece is moved by the moving mechanism of the fixture to achieve fine-tuning positioning of the workpiece within the positioning range.

[0023] Example 2: like Figure 1-7 As shown, based on the above embodiment 1, the moving drive component 4 includes: The load-bearing frame 4-1 is fixedly mounted on the bottom plate of the frame 1, and the ends of the load-bearing frame 4-1 are fixedly mounted on the side plate of the frame 1. The support rack 4-2 consists of four racks, arranged in pairs in parallel front and back. The two racks 4-2 in the same pair are symmetrically fixed on the load-bearing frame 4-1. The load-bearing bearing seat 4-3 is fixedly mounted on the lower surface of the mounting base 3; The drive shaft 4-4 is screwed onto the load-bearing bearing 4-3 via a bearing. There are two drive gears 4-5, both of which are sleeved and fixed on the transmission shaft 4-4. The drive gears 4-5 are meshed with the support rack 4-2 on the upper surface of the load-bearing frame 4-1. The drive motor 4-6 is fixedly mounted on the lower surface of the mounting base 3, and the output shaft of the drive motor 4-6 is connected to the rear end of the transmission shaft 4-4. The positioning element 5 includes: Positioning frame 5-1 is located behind the mounting base 3, and the left and right ends of the positioning frame 5-1 are fixedly mounted on the side plate of the frame 1. Several positioning slots 5-2 are equidistantly provided on the front end of the upper surface of the positioning frame 5-1. Positioning electric push rod 5-3, the positioning electric push rod 5-3 is fixedly mounted on the upper surface of the mounting base 3; Positioning seat 5-4, wherein the positioning seat 5-4 is fixedly mounted on the rear end shaft of the positioning electric push rod 5-3; Guide rod 13, the guide rod 13 is fixedly mounted on the upper surface of the mounting base 3, and the guide rod 13 is movably inserted through the positioning base 5-4; Guide wheel 5-5, the guide wheel 5-5 is spun onto the positioning seat 5-4 by bearing, and the guide wheel 5-5 is configured to cooperate with the positioning groove 5-2; With the above design, each positioning slot 5-2 corresponds to a positioning range during use. When the workpiece is clamped by the fixture and moves over a long stroke, the drive motor 4-6 drives the transmission shaft 4-4 to rotate, which in turn drives the drive gear 4-5 to rotate. The drive gear 4-5 then slides on the support rack 4-2, and the load-bearing shaft seat 4-3 drives the mounting seat 3 to slide on the slide rail 2. The mounting seat 3 then moves the fixture to the designated positioning range. Next, the positioning electric push rod 5-3 pushes the positioning seat 5-4, which in turn drives the guide wheel 5-5 to slide against the side wall of the positioning slot 5-2. The guide wheel 5-5 then drives the mounting seat 3 to slide on the slide rail 2 for positioning. After positioning, the clamped workpiece can be finely positioned by the short-stroke moving mechanism on the fixture.

[0024] Example 3: like Figure 1 , 2 As shown in Figures 6, 7, 8, and 9, based on the above embodiment 2, the mounting base 3 is symmetrically fixed with connecting frames 6, and the connecting frames 6 are symmetrically mounted on the front and rear sides of the load-bearing frame 4-1. The connecting frames 6 are symmetrically arranged with clamping plates 7, and the clamping plates 7 are screwed onto the connecting frames 6 through bearings. A pad 8 is fixedly arranged on the side of the clamping plate 7 facing the supporting rack 4-2. The upper and lower clamping plates 7 are respectively abutted against the upper and lower supporting racks 4-2 through the pads 8. A transmission gear 9 is fixedly arranged on the rotating shaft of the clamping plate 7. The transmission gears 9 on the upper and lower sides are meshed with each other. A clamping electric push rod 10 is fixedly arranged on the lower surface of the mounting base 3. A guide groove 11 is fixedly arranged on the lower end shaft of the clamping electric push rod 10. A pin 12 is fixedly arranged on the upper clamping plate 7. The pin 12 is movably arranged in the guide groove 11. With the above design, during use, after the mounting base 3 is positioned by the guide wheel 5-5, the guide groove 11 is pushed downward by the limit electric push rod 10. Then, the guide groove 11 drives the clamping plate 7 to rotate through the pin rod 12. The clamping plates 7 on the upper and lower sides are driven by the transmission gear 9, and then the clamping plates 7 on the upper and lower sides close. The support rack 4-2 is clamped by the pad block 8. Then, the clamping plate 7 is connected to the mounting base 3 through the connecting frame 6 to limit and lock the mounting base 3.

[0025] Example 4: like Figure 6 As shown, based on the above embodiment 3, a protrusion 14 is integrally formed on the rear surface of the mounting base 3, and a groove 15 is provided on the front surface of the positioning bracket 5-1, with the protrusion 14 slidably disposed in the groove 15. With the above design scheme, during use, the mounting base 3 is supported and guided by the slide rail 2. At the same time, the mounting base 3 is supported by the load-bearing shaft seat 4-3, and is supported on the support rack 4-2 on the load-bearing frame 4-1 by the drive gear 4-5. It is slidably supported on the positioning frame 5-1 by the protrusion 14, thus forming a three-in-one support structure for the mounting base 3 by the slide rail 2, the load-bearing frame 4-1, and the positioning frame 5-1, ensuring the upper limit of the load-bearing capacity of the mounting base 3. The slide rail 2, the load-bearing frame 4-1, and the positioning frame 5-1 share the load of the mounting base 3, preventing deformation of a single structural component under pressure.

[0026] By adopting the technical solution disclosed in this invention, the following can be achieved: When using this device, the fixture is equipped with a lead screw pair fine-tuning mechanism. The workpiece is clamped by the fixture, and then the drive motor 4-6 drives the drive gear 4-5 to rotate, thereby moving the mounting base 3 to the designated positioning groove 5-2. Then, the positioning electric push rod 5-3 pushes the guide wheel 5-5 to move. The guide wheel 5-5 slides against the positioning groove 5-2 until it moves to the trough of the positioning groove 5-2, thus positioning the mounting base 3 by the guide wheel 5-5 in conjunction with the positioning groove 5-2. Then, the clamping plate 7 clamps the support rack 4-2 to limit and lock the mounting base 3, thus completing the position adjustment of the mounting base 3. Finally, the specific position of the workpiece can be finely adjusted by the lead screw pair fine-tuning mechanism of the fixture.

[0027] The technical advantages achieved by adopting the above technical solution are as follows: 1. The mounting base 3 is mounted on the frame 1 via the slide rail 2, and the fixture is installed via the mounting base 3. The mounting base 3 is equipped with a drive gear 4-5, and the frame 1 is equipped with a support rack 4-2. The rotation of the drive gear 4-5 drives the mounting base 3 to move on the slide rail 2. The frame 1 is equipped with a positioning frame 5-1 with a positioning groove 5-2, and the mounting base 3 is equipped with a guide wheel 5-5. The guide wheel 5-5 cooperates with the positioning groove 5-2 to realize the movement of the mounting base 3 and its positioning within the corresponding positioning range. 2. A drive motor 4-6 is installed on the mounting base 3 and is connected to the drive gear 4-5 through the transmission shaft 4-4. The drive gear 4-5 and the support rack 4-2 realize the movement drive of the mounting base 3, which is suitable for long-stroke and fast movement drive of the mounting base 3. 3. A positioning seat 5-4 is set on the mounting base 3 via a positioning electric push rod 5-3, and a guide wheel 5-5 is also provided. A positioning frame 5-1 with several positioning slots 5-2 is set on the frame 1. The guide wheel 5-5 slides and positions the mounting base 3 in the positioning slot 5-2, thereby locking the mounting base 3 in the corresponding positioning slot 5-2. This facilitates the positioning and locking of the mounting base 3 in the corresponding range, making it convenient for subsequent fine-tuning of the fixture.

[0028] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A welding equipment fixture with automatic positioning function, the welding equipment fixture comprising a frame (1), a slide rail (2), and a mounting base (3), wherein there are two slide rails (2) arranged parallel to each other on the frame (1), the mounting base (3) is slidably sleeved on the slide rails (2), and a workpiece clamp is fixedly mounted on the mounting base (3), the workpiece clamp being used to clamp the workpiece and perform fine-tuning of the workpiece position; characterized in that, The fixture for this welding equipment also includes: Motion drive component (4), positioning component (5); the motion drive component (4) is mounted on the mounting base (3); The moving drive component (4) includes: a load-bearing frame (4-1), a support rack (4-2), a load-bearing shaft seat (4-3), a transmission shaft (4-4), a drive gear (4-5), and a drive motor (4-6); the load-bearing frame (4-1) is fixedly mounted on the bottom plate of the frame (1), and the end of the load-bearing frame (4-1) is fixedly mounted on the side plate of the frame (1); there are four support racks (4-2), which are arranged in pairs in parallel front and back, and the two support racks (4-2) in the same group are symmetrically fixedly mounted on the load-bearing frame (4-1); The load-bearing shaft seat (4-3) is fixedly mounted on the lower surface of the mounting base (3); the transmission shaft (4-4) is screwed onto the load-bearing shaft seat (4-3) via bearings; there are two drive gears (4-5), both of which are sleeved and fixed on the transmission shaft (4-4), and the drive gears (4-5) mesh with the support rack (4-2) on the upper surface of the load-bearing frame (4-1); the drive motor (4-6) is fixedly mounted on the lower surface of the mounting base (3), and the output shaft of the drive motor (4-6) is connected to the rear end of the transmission shaft (4-4); The mounting base (3) is symmetrically fixed with connecting frames (6) on the front and back sides, and the connecting frames (6) are symmetrically mounted on the front and back sides of the load-bearing frame (4-1). The connecting frames (6) are provided with symmetrical clamping plates (7), and the clamping plates (7) are screwed onto the connecting frames (6) through bearings. The clamping plates (7) facing the support rack (4-2) are fixed with pads (8). The clamping plates (7) on the upper and lower sides can abut against the support rack (4-2) on the upper and lower sides respectively through the pads (8). The rotating shaft of the clamping plates (7) is fixed with transmission gears (9), and the transmission gears (9) on the upper and lower sides are meshed with each other. The lower surface of the mounting base (3) is fixed with a clamping electric push rod (10). A guide groove (11) is fixedly provided on the lower shaft of the clamping electric push rod (10), and a pin (12) is fixedly provided on the upper clamping plate (7). The pin (12) is movably provided in the guide groove (11). When the clamping electric push rod is lifted upward, the guide groove drives the upper clamping plate to rotate through the pin. The upper clamping plate rotates and drives the pad to lift off the support rack. The upper clamping plate and the lower clamping plate achieve synchronous reverse movement through the transmission gear. The lower clamping plate drives the pad to disengage from the support rack below. When the clamping electric push rod is pushed downward, the guide groove drives the upper clamping plate to rotate through the pin. The upper clamping plate abuts against the support rack through the pad to limit and lock. The positioning component (5) is mounted on the mounting base (3). The positioning component (5) includes: a positioning frame (5-1), a positioning electric push rod (5-3), a positioning seat (5-4), and a guide wheel (5-5). The positioning frame (5-1) is located behind the mounting base (3), and the left and right ends of the positioning frame (5-1) are fixedly mounted on the side plates of the frame (1). Several positioning slots (5-2) are equidistantly opened on the front end of the upper surface of the positioning frame (5-1). The positioning electric push rod (5-3) is fixedly mounted on the upper surface of the mounting base (3). The positioning seat (5-4) is fixedly mounted on the rear end shaft of the positioning electric push rod (5-3). The guide wheel (5-5) is spun onto the positioning seat (5-4) through a bearing, and the guide wheel (5-5) cooperates with the positioning slot (5-2). A guide rod (13) is fixedly provided on the mounting base (3). The guide rod (13) is movably inserted on the positioning seat (5-4). The lower surface of the positioning seat (5-4) is movably abutted against the upper surface of the mounting base (3). The mounting base (3) has a protrusion (14) integrally formed on its rear surface, and the positioning frame (5-1) has a groove (15) on its front surface, and the protrusion (14) is slidably disposed in the groove (15). The slide rail (2) includes a transverse wing plate and two vertical wing plates, wherein the vertical wing plates of the slide rail (2) are fixedly disposed on the lower surface of the transverse wing plate of the slide rail (2).

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