Resistance welding detecting and checking machine
By designing a resistance welding detection and verification machine, the detection mechanism is used to perform damage-free and damage detection on the laminate welded parts, which solves the problem of cumbersome detection operations in the prior art, improves the detection efficiency and realizes the measurement of tensile strength.
Patent Information
- Application Number
- CN202421910352.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-08
AI Technical Summary
After the welding of existing lath welds is completed, different detection devices need to be replaced in turn for damage-free testing and damage testing, resulting in cumbersome operation and reducing detection efficiency.
A resistance welding detection and verification machine is designed. By setting up a detection mechanism, including a detection table, U-shaped plate, hydraulic rod, tension plate, cylinder, tension sensor, spring, connecting plate, linear motor, telescopic rod, ultrasonic flaw detector and other components, the non-damage detection and damage detection of the welding points of the laminate welded parts are realized.
Through this detection and verification machine, the welding points of the laminate welded parts can be quickly and accurately detected, which improves the detection efficiency and measures the tensile strength by recording the maximum tensile force.
Smart Images
Figure CN222994399U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of resistance welding detection, and particularly relates to a resistance welding detection and calibration machine. Background Technique
[0002] Resistance welding refers to a method of locally heating a workpiece by using the resistance heat generated by the current passing through the workpiece and the contact area, and simultaneously applying pressure for welding. During welding, no filler metal is required, the productivity is high, the deformation of the workpiece is small, and it is easy to achieve automation. Resistance welding uses the resistance heat effect generated by the current flowing through the contact surface and adjacent areas of the workpiece to heat it to the melting or plastic state, so as to form a method of metal bonding. There are mainly four resistance welding methods, namely spot welding, seam welding, projection welding, and butt welding. Currently, after the strip resistance welding, it is necessary to detect and calibrate the welding points of the strip welded parts.
[0003] Based on the above, the inventor found the following problems: When the welding points of the current strip welded parts need to be detected after welding, when non-destructive detection and damage detection are required for the welding points of the strip welded parts in sequence, different detection devices need to be replaced, resulting in the need to re-clamp the strip welded parts when replacing the equipment for detection, and the operation is relatively cumbersome, thus reducing the detection efficiency.
[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a resistance welding detection and calibration machine is provided with the expectation of achieving a more practical value. Content of the Utility Model
[0005] In order to solve the above technical problems, an embodiment of the utility model provides a resistance welding detection and calibration machine, which is specifically realized through the following technical solutions:
[0006] A resistance welding detection and calibration machine includes a detection mechanism. The detection mechanism includes a detection table. One side of the upper end of the detection table is connected with a first U-shaped plate, and an installation groove is opened inside the detection table. A hydraulic rod is inserted on one side of the detection table, and the output end of the hydraulic rod extends into the installation groove and is connected with the outer wall of a pull plate. A cylinder is inserted at the center of the pull plate. One side of the inner wall of the cylinder is connected with a tension sensor. One side of the tension sensor is connected with a spring. One end of the spring is connected with a connecting plate. One side of the connecting plate is connected with a second U-shaped plate. Clamping mechanisms are embedded in both the second U-shaped plate and the first U-shaped plate. A linear motor is embedded inside the upper end of the detection table. The moving end of the linear motor is connected with a telescopic rod. The output end of the telescopic rod is connected with a U-shaped seat. A square block is connected inside the U-shaped seat. One side of the outer wall of the square block is connected with an ultrasonic flaw detector.
[0007] Further, each pair of the clamping mechanisms includes a circular plate. The two circular plates are respectively arranged inside the first U-shaped plate and the second U-shaped plate. On one side of the outer walls of the two circular plates, a clamping seat is connected respectively. A placement groove is formed at the center of the clamping seat.
[0008] The beneficial effect of adopting the above further solution is that by arranging a pair of circular plates, the two clamping seats are respectively arranged at the first U-shaped plate and the second U-shaped plate through the pair of circular plates. Through the placement grooves of the clamping seats, it is convenient to place both ends of the strip welding part to be detected and calibrated into the pair of placement grooves.
[0009] Further, a pair of cavities are arranged inside the clamping seat. A pair of clamping plates are movably inserted into the two cavities respectively.
[0010] The beneficial effect of adopting the above further solution is that by arranging a pair of cavities and movably inserting clamping plates into the two cavities respectively, when the two clamping plates extend out of the cavities respectively, it is convenient to clamp one end of the strip welding part.
[0011] Further, a sliding groove is formed on the inner side wall of each of the two cavities. A pair of sliders are slidably connected inside the sliding grooves. A bidirectional lead screw is rotatably connected inside the two cavities. The two ends of the bidirectional lead screw respectively penetrate through the pair of sliders and are threadedly connected with the pair of sliders respectively.
[0012] The beneficial effect of adopting the above further solution is that through the combined use of the sliding groove and the bidirectional lead screw, since opposite threads are arranged on the outer parts of the two ends of the bidirectional lead screw, when the bidirectional lead screw rotates, it is convenient for the pair of sliders on its outer part to perform linear movement in opposite directions under the action of the sliding connection with the sliding groove.
[0013] Further, one end of each of the two sliders is hinged with a connecting rod through a pin shaft. One end of each of the two connecting rods is hinged with a connecting seat through a pin shaft. One side of the outer walls of the two connecting seats is connected with the clamping plate respectively.
[0014] The beneficial effect of adopting the above further solution is that by arranging a pair of sliders, when the pair of sliders move towards the center in opposite directions, the clamping plates will move out of the cavities under the action of the connecting rods and the connecting seats.
[0015] Further, one end of each of the two bidirectional lead screws penetrates through the clamping seat and extends to the outside, and a synchronous pulley is sleeved on each of them. A synchronous belt is wound around the two synchronous pulleys.
[0016] The beneficial effect of adopting the above further solution is that through the combined use of the synchronous pulley and the synchronous belt, when one of the bidirectional lead screws inside the clamping seat rotates, it is convenient to drive the other bidirectional lead screw to rotate under the transmission action of the synchronous pulley and the synchronous belt.
[0017] Further, a micro motor is connected to the upper end of the clamping seat, and the micro motor is drivingly connected to one of the bidirectional lead screws.
[0018] The beneficial effect of adopting the above further scheme is that by setting the micro motor, since there are a pair of clamping seats and also a pair of micro motors, when the pair of micro motors work, it is convenient to realize the rotation of the bidirectional lead screws connected to the output ends of the micro motors in the pair of clamping seats.
[0019] Further, a slide bar is movably inserted inside the pull plate on the side close to the hydraulic rod, and both ends of the slide bar are respectively connected to both sides of the inner wall of the installation groove.
[0020] The beneficial effect of adopting the above further scheme is that by setting the slide bar, it is convenient for the pull plate to move stably under the pushing and pulling action of the hydraulic rod and the sliding connection with the slide bar.
[0021] Further, slide rails are connected to both sides of the upper end surface of the detection table close to the installation groove, and sliding blocks are slidably connected inside the pair of slide rails, and the outer sides of both walls of the second U-shaped plate are respectively connected to the outer side walls of the pair of sliding blocks.
[0022] The beneficial effect of adopting the above further scheme is that by setting a pair of slide rails, and the second U-shaped plate is slidably connected between the pair of slide rails through the sliding blocks. When the pull plate moves, the second U-shaped plate will move stably between the pair of slide rails under the connection action of the cylinder and the connecting plate.
[0023] The beneficial effect of the present utility model is: A resistance welding detection and calibration machine obtained by the above design of the present utility model. For this kind of resistance welding detection and calibration machine, by setting the detection mechanism, it is convenient to perform non-destructive detection and damage detection on the welding points of the resistance plate strip welded parts. Through the clamping mechanism embedded in the first U-shaped plate and the second U-shaped plate, both ends of the strip welded part to be detected are clamped and fixed. Then, through the work of the linear motor and the telescopic rod, the positions of the square block and the ultrasonic flaw detector are adjusted according to the position of the welding point or weld seam. Through the ultrasonic flaw detection head connected to the ultrasonic flaw detector, non-destructive detection is performed on the welding points of the strip welded parts. After the non-destructive detection is completed, through the work of the hydraulic rod, the pull plate moves, and under the action of the spring and the connecting plate, the second U-shaped plate is pulled to apply a tensile force to the welding point until the welding point breaks, so as to measure the tensile strength of the strip welded part and complete the damage detection. The tensile force sensor detects the tensile force transmitted through the spring. When the welding point breaks, the tensile force sensor records the maximum tensile force. Description of the Drawings
[0024] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0025] Figure 1 A three-dimensional structural schematic diagram of a resistance welding detection and calibration machine provided by the present utility model;
[0026] Figure 2 A cross-sectional view of a square groove of a resistance welding detection and calibration machine provided by the present utility model;
[0027] Figure 3 An exploded three-dimensional structural schematic diagram of a cylinder of a resistance welding detection and calibration machine provided by the present utility model;
[0028] Figure 4 A three-dimensional structural schematic diagram of a clamping mechanism of a resistance welding detection and calibration machine provided by the present utility model;
[0029] Figure 5 A side-sectional structural schematic diagram of a clamping seat of a resistance welding detection and calibration machine provided by the present utility model.
[0030] In the figure: 100, detection mechanism; 1001, detection table; 1002, first U-shaped plate; 1003, slide bar; 1004, pull plate; 1005, hydraulic rod; 1006, cylinder; 1007, tension sensor; 1008, spring; 1009, connecting plate; 1010, second U-shaped plate; 1011, linear motor; 1012, telescopic rod; 1013, U-shaped seat; 1014, square block; 1015, ultrasonic flaw detector; 1016, slide rail; 200, clamping mechanism; 2001, circular plate; 2002, clamping seat; 2003, cavity; 2004, clamping plate; 2005, chute; 2006, slider; 2007, bidirectional lead screw; 2008, connecting rod; 2009, connecting seat; 2010, synchronous pulley; 2011, micro motor. Specific embodiments
[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.
[0033] Embodiment 1
[0034] The present invention provides the following technical solutions: As Figures 1-5 shown, a resistance welding detection and calibration machine includes a detection mechanism 100. The detection mechanism 100 includes a detection table 1001. One side of the upper end of the detection table 1001 is connected with a first U-shaped plate 1002, and an installation groove is opened inside the detection table 1001. A hydraulic rod 1005 is inserted on one side of the detection table 1001. The output end of the hydraulic rod 1005 extends into the installation groove and is connected to the outer wall of a pull plate 1004. A cylinder 1006 is inserted at the center of the pull plate 1004. One side of the inner wall of the cylinder 1006 is connected with a tension sensor 1007. One side of the tension sensor 1007 is connected with a spring 1008. One end of the spring 1008 is connected with a connecting plate 1009. One side of the connecting plate 1009 is connected with a second U-shaped plate 1010. Clamping mechanisms 200 are embedded in both the second U-shaped plate 1010 and the first U-shaped plate 1002. A linear motor 1011 is embedded inside the upper end of the detection table 1001. The moving end of the linear motor 1011 is connected with a telescopic rod 1012. The output end of the telescopic rod 1012 is connected with a U-shaped seat 1013. A square block 1014 is connected inside the U-shaped seat 1013. One side of the outer wall of the square block 1014 is connected with an ultrasonic flaw detector 1015. By providing the detection mechanism 100, it is convenient to perform non-destructive detection and damage detection on the welding points of the resistance plate strip weldments. Through the clamping mechanisms 200 embedded in the first U-shaped plate 1002 and the second U-shaped plate 1010, both ends of the plate strip weldment to be detected are clamped and fixed. Then, through the operation of the linear motor 1011 and the telescopic rod 1012, the positions of the square block 1014 and the ultrasonic flaw detector 1015 are adjusted according to the position of the welding point or weld seam. Through the ultrasonic flaw detection head connected to the ultrasonic flaw detector 1015, non-destructive detection is performed on the welding points of the plate strip weldment. After the non-destructive detection is completed, through the operation of the hydraulic rod 1005, the pull plate 1004 is moved, and under the action of the spring 1008 and the connecting plate 1009, the second U-shaped plate 1010 is pulled to apply a tensile force to the welding point until the welding point breaks, so as to measure the tensile strength of the plate strip weldment and complete the damage detection. The tension sensor 1007 detects the tensile force transmitted through the spring 1008. When the welding point breaks, the tension sensor 1007 records the maximum tensile force.
[0035] Example 2
[0036] Refer to Figures 1-5 As shown, a pair of clamping mechanisms 200 both include circular plates 2001. The pair of circular plates 2001 are respectively arranged inside the first U-shaped plate 1002 and the second U-shaped plate 1010. And on one side of the outer walls of the pair of circular plates 2001, clamping seats 2002 are connected. A placement groove is provided at the center of the clamping seat 2002. A pair of cavities 2003 are provided inside the clamping seat 2002. A pair of clamping plates 2004 are movably inserted into the pair of cavities 2003. A pair of chutes 2005 are provided on the inner side walls of the pair of cavities 2003. A pair of sliders 2006 are slidably connected inside the chutes 2005. And a bidirectional lead screw 2007 is rotatably connected inside the pair of cavities 2003. The two ends of the bidirectional lead screw 2007 respectively penetrate through the pair of sliders 2006 and are threadedly connected with the pair of sliders 2006. One end of each of the pair of sliders 2006 is hinged with a connecting rod 2008 through a pin shaft. One end of each of the pair of connecting rods 2008 is hinged with a connecting seat 2009 through a pin shaft. One side of the outer walls of the pair of connecting seats 2009 is connected with the clamping plate 2004. One end of each of the pair of bidirectional lead screws 2007 penetrates through the clamping seat 2002 and extends to the outside, and a synchronous pulley 2010 is sleeved on each of them. A synchronous belt is wound between the pair of synchronous pulleys 2010. A micro motor 2011 is connected to the upper end of the clamping seat 2002. The micro motor 2011 is in transmission connection with one of the bidirectional lead screws 2007. By providing a pair of clamping seats 2002 and arranging placement grooves at the centers of the pair of clamping seats 2002, it is convenient to place the two ends of the strip welding part to be detected and calibrated into the pair of placement grooves. By starting the pair of micro motors 2011, it is convenient to realize the rotation of the bidirectional lead screws 2007 connected to the output ends of the micro motors 2011 inside the pair of clamping seats 2002. Under the action of the synchronous pulleys 2010 and the synchronous belt, the pair of bidirectional lead screws 2007 inside the clamping seat 2002 rotate. It is convenient for the pair of sliders 2006 outside the bidirectional lead screw 2007 to move towards the center in the sliding connection with the chutes 2005. Under the action of the connecting rods 2008 and the connecting seats 2009, the clamping plates 2004 move out of the cavities 2003. When the pair of clamping plates 2004 inside the clamping seat 2002 respectively extend out of the cavities 2003, it is convenient to clamp one end of the strip welding part.
[0037] Example 3
[0038] Refer to Figures 1-5As shown in the figure, a sliding rod 1003 is movably inserted inside the pull plate 1004 on the side close to the hydraulic rod 1005. Both ends of the sliding rod 1003 are respectively connected to both sides of the inner wall of the installation groove. On the upper end surface of the detection table 1001, slide rails 1016 are connected on both sides close to the installation groove. Inside a pair of slide rails 1016, sliding blocks are slidably connected respectively. The outer sides of both sides of the second U-shaped plate 1010 are respectively connected to the outer side walls of a pair of sliding blocks. By providing the sliding rod 1003, it is convenient for the pull plate 1004 to be stably moved under the pushing and pulling action of the hydraulic rod 1005 and under the sliding connection action with the sliding rod 1003. By providing a pair of slide rails 1016, and the second U-shaped plate 1010 is slidably connected between a pair of slide rails 1016 through the sliding blocks. When the pull plate 1004 moves, it will make the second U-shaped plate 1010 move stably between a pair of slide rails 1016 under the connection action of the cylinder 1006 and the connecting plate 1009.
[0039] Specifically, the working principle of this kind of resistance welding detection and calibration machine: When in use, by providing a pair of clamping seats 2002, and placing grooves are opened at the centers of a pair of clamping seats 2002, it is convenient to place both ends of the strip welding piece to be detected and calibrated into a pair of placing grooves. By starting a pair of micro motors 2011, it is convenient to realize the rotation of the bidirectional lead screws 2007 connected to the output ends of the micro motors 2011 inside the pair of clamping seats 2002. Under the action of the synchronous wheels 2010 and the synchronous belt, the pair of bidirectional lead screws 2007 inside the clamping seats 2002 rotate, which is convenient for a pair of sliders 2006 outside the bidirectional lead screws 2007 to move towards the center in the sliding connection with the sliding grooves 2005. Under the action of the connecting rods 2008 and the connecting seats 2009, the clamping plates 2004 will move out from the inside of the cavity 2003. When a pair of clamping plates 2004 inside the clamping seats 2002 respectively extend out from the inside of the cavity 2003, it is convenient to clamp one end of the strip welding piece. Then, through the work of the linear motor 1011 and the telescopic rod 1012, the positions of the square block 1014 and the ultrasonic flaw detector 1015 are adjusted according to the positions of the welding points or weld seams. Through the ultrasonic flaw detection head connected to the ultrasonic flaw detector 1015, non-destructive detection of the welding points of the strip welding piece is carried out. After the non-destructive detection is completed, through the work of the hydraulic rod 1005, the pull plate 1004 is stably moved under the sliding connection action with the sliding rod 1003, and under the action of the spring 1008 and the connecting plate 1009, the second U-shaped plate 1010 is pulled to move stably between a pair of slide rails 1016, applying a pulling force to the welding point until the welding point breaks, so as to measure the tensile strength of the strip welding piece and complete the damage detection. The tension sensor 1007 detects the pulling force transmitted through the spring 1008. When the welding point breaks, the tension sensor 1007 records the maximum pulling force.
[0040] It should be noted that for a resistance welding detection and calibration machine, the specific model specifications of the hydraulic rod 1005, the tension sensor 1007, the linear motor 1011, the telescopic rod 1012, the ultrasonic flaw detector 1015 and the micro motor 2011 need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.
[0041] For a resistance welding detection and calibration machine, the power supply and its principle of the hydraulic rod 1005, the tension sensor 1007, the linear motor 1011, the telescopic rod 1012, the ultrasonic flaw detector 1015 and the micro motor 2011 are clear to those skilled in the art and will not be described in detail here.
[0042] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A resistance welding inspection and testing machine, characterized in that: The invention comprises a detection mechanism (100), wherein the detection mechanism (100) comprises a detection platform (1001), wherein one side of the upper end of the detection platform (1001) is connected to a first U-shaped plate (1002), and a mounting groove is provided inside the detection platform (1001), a hydraulic rod (1005) is inserted into one side of the detection platform (1001), an output end of the hydraulic rod (1005) extends into the inside of the mounting groove and is connected to one side of the outer wall of a pull plate (1004), a cylinder (1006) is inserted at the center of the pull plate (1004), a tension sensor (1007) is connected to one side of the inner wall of the cylinder (1006), and a spring (1008) is connected to one side of the tension sensor (1007). One end of the spring (1008) is connected to a connecting plate (1009), one side of the connecting plate (1009) is connected to a second U-shaped plate (1010), the second U-shaped plate (1010) and the first U-shaped plate (1002) are both embedded with a clamping mechanism (200), a linear motor (1011) is embedded in the upper end of the detection platform (1001), the moving end of the linear motor (1011) is connected to a telescopic rod (1012), the output end of the telescopic rod (1012) is connected to a U-shaped seat (1013), the interior of the U-shaped seat (1013) is connected to a block (1014), and one side of the outer wall of the block (1014) is connected to an ultrasonic flaw detector (1015).
2. A resistance welding inspection and testing machine according to claim 1, characterized in that: The pair of clamping mechanisms (200) both comprise a circular plate (2001), the pair of circular plates (2001) being respectively arranged inside the first U-shaped plate (1002) and the second U-shaped plate (1010), and one side of the outer wall of the pair of circular plates (2001) is connected to a clamping seat (2002), and a placement groove is provided at the center of the clamping seat (2002).
3. A resistance welding inspection and testing machine according to claim 2, characterized in that: A pair of cavities (2003) are provided inside the clamping seat (2002), and clamping plates (2004) are movably inserted inside the pair of cavities (2003).
4. A resistance welding inspection and testing machine according to claim 3, characterized in that: The inner side walls of the pair of cavities (2003) are each provided with a slide groove (2005), the interior of the slide groove (2005) is slidably connected to a pair of sliders (2006), and the interior of the pair of cavities (2003) is rotatably connected to a bidirectional screw rod (2007), and the two ends of the bidirectional screw rod (2007) respectively penetrate the pair of sliders (2006) and are respectively threadedly connected to the pair of sliders (2006).
5. A resistance welding inspection and testing machine according to claim 4, characterized in that: One end of a pair of sliders (2006) is hinged to a connecting rod (2008) via a pin, one end of a pair of connecting rods (2008) is hinged to a connecting seat (2009) via a pin, and one side of the outer wall of a pair of connecting seats (2009) is connected to the clamping plate (2004).
6. A resistance welding inspection and testing machine according to claim 5, characterized in that: One end of a pair of bidirectional screw rods (2007) passes through the clamping seat (2002) and extends to the outside, and is sleeved with a synchronous wheel (2010). A synchronous belt is wound between the pair of synchronous wheels (2010).
7. A resistance welding inspection and testing machine according to claim 6, characterized in that: The upper end of the clamping seat (2002) is connected to a micro motor (2011), and the micro motor (2011) is transmission-connected to one of the bidirectional screw rods (2007).
8. A resistance welding inspection and testing machine according to claim 1, characterized in that: A sliding rod (1003) is movably inserted into the interior of the pulling plate (1004) on one side close to the hydraulic rod (1005), and two ends of the sliding rod (1003) are respectively connected to two sides of the inner wall of the installation groove.
9. A resistance welding inspection and testing machine according to claim 8, characterized in that: The upper end surface of the detection platform (1001) is connected to slide rails (1016) on both sides close to the installation groove, and a pair of slide rails (1016) are slidably connected to the inside of each slide rail (1016) with a sliding block, and the outer wall of the second U-shaped plate (1010) is respectively connected to the outer side walls of the pair of sliding blocks.