An automotive tooling fixture for manufacturing automotive parts and its usage method

Abstract

This invention discloses an automotive tooling fixture for automotive parts production and its usage method, relating to the field of tooling fixture technology. It includes a base, with a lead screw slide table 1 and a lead screw slide table 2 fixedly connected to the top of the base. A motor 2 is fixedly connected to one side of the lead screw slide table 1. In this invention, a telescopic protective sleeve is connected to the slider, and an electric push rod 2 is connected between the connecting plate and the reinforcing plate. The lead screw 2 drives the slider to move, and the connecting plate and the slider move synchronously. The reinforcing plate and the bracket move synchronously with the connecting plate, enabling position adjustment of the slider and the parts. An infrared transmitter and an infrared receiver assist in the position calibration of the parts, reducing positional offset during clamping and ensuring clamping effectiveness. The bracket supports the parts, ensuring stable placement before clamping. By lowering the limiting plate, the pressing and limiting of the parts can be achieved, reducing shaking during movement.

Description

Technical Field

[0001] This invention relates to the field of tooling and fixture technology, specifically to an automotive tooling fixture for the production of automotive parts and its usage method. Background Technology

[0002] Tooling fixtures, also known as "process equipment fixtures," are auxiliary devices used in manufacturing to fix workpieces during machining, ensure workpiece machining accuracy, simplify operation processes, and improve production efficiency. They can precisely position the workpiece in a preset location and maintain its stability through clamping structures.

[0003] For example, Chinese patent CN219426622U discloses a tooling fixture for automobile parts production, including a bottom cavity, a moving mechanism inside the bottom cavity, a clamping seat installed at the top of the bottom cavity, an electromagnetic slide rail installed behind the top of the bottom cavity, an electromagnetic slider installed above the electromagnetic slide rail, a movable cavity installed above the electromagnetic slider, and a clamping mechanism installed inside the movable cavity.

[0004] In the aforementioned patent, although the problem of not being able to double-clamp the exhaust pipe is solved by the clamping mechanism, the driving accuracy of the electromagnetic sliding is greatly affected by the voltage stability. If the workshop voltage fluctuates, it will cause uneven movement speed of the slider or positioning deviation, which will cause the relative position of the clamping plate and the exhaust pipe to shift, increasing the risk of initial clamping failure. Summary of the Invention

[0005] The purpose of this invention is to provide an automotive tooling fixture for automotive parts production and its usage method, in order to solve the problem mentioned in the background art that the driving accuracy of electromagnetic sliding is greatly affected by voltage stability. If the workshop voltage fluctuates, it will cause uneven slider movement speed or positioning deviation, which will cause the relative position of the clamping plate and the exhaust pipe to shift, increasing the risk of initial clamping failure.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automotive tooling fixture for automotive parts production, comprising a base, wherein a lead screw slide 1 and a lead screw slide 2 are fixedly connected to the top of the base, a motor 2 is fixedly connected to one side of the lead screw slide 1, the output shaft of the motor 2 is fixedly connected to the lead screw 1, one end of the lead screw 1 is rotatably connected to the lead screw slide 1, and the lead screw 1 is threadedly connected to a guide rod, the bottom of the guide rod is slidably connected to the lead screw slide 1, a limit block is fixedly connected to the top of the guide rod, and a pressure sensor is embedded in the inner wall of the limit block, a motor 3 is fixedly connected to one side of the lead screw slide 2, the output shaft of the motor 3 is fixedly connected to the lead screw 2, one end of the lead screw 2 is rotatably connected to the lead screw slide 2, a slider is threadedly connected to the lead screw 2, an auxiliary frame is bolted to the top of the slider, and a chuck assembly is provided on one side of the auxiliary frame.

[0007] Preferably, one end of the chuck assembly is rotatably connected to a gearbox, one side of the gearbox is fixedly connected to an auxiliary frame, and a motor is fixedly connected to the top of the gearbox.

[0008] Preferably, a telescopic protective sleeve is fixedly connected to one side of the slider, one end of the telescopic protective sleeve is fixedly connected to the second lead screw slide, and the slider is slidably connected to the second lead screw slide.

[0009] Preferably, a connecting plate is inserted into one side of the slider, and an electric push rod 2 is embedded inside the connecting plate. A reinforcing plate is fixedly connected to one end of the electric push rod 2. A fixing block is embedded inside the reinforcing plate. An infrared receiver is fixedly connected to one side of the reinforcing plate. An infrared transmitter is provided on one side of the infrared receiver. The side of the infrared transmitter is fixedly connected to the lead screw slide 1.

[0010] Preferably, an electric push rod is embedded inside the fixing block, a bracket is fixedly connected to the top of the electric push rod, and a buffer spring is fixedly connected to the inner ring surface of the bracket.

[0011] Preferably, a laser rangefinder is fixedly connected to the bottom of the trailer, and a detection plate is provided on one side of the laser rangefinder, with the bottom of the detection plate engaging with the slider.

[0012] Preferably, an auxiliary plate is fixedly connected to one side of the reinforcing plate, the bottom of the auxiliary plate is slidably connected to the base, a U-shaped frame is slidably connected inside the auxiliary plate, and a limit plate is engaged with the top of the U-shaped frame.

[0013] Preferably, a rack is fixedly connected to one side of the U-shaped frame, a gear one meshes with one side of the rack, a gear two meshes with one side of the gear one, and both gear one and gear two are rotatably connected to the inner wall of the auxiliary plate.

[0014] Preferably, the shaft of the second gear is fixedly connected to the output shaft of the first motor, and one side of the first motor is fixedly connected to the auxiliary plate.

[0015] A method for using an automotive tooling fixture for manufacturing automotive parts includes the following: S1. Place the shaft-shaped part to be processed in the carriage, use the chuck assembly to clamp one end of the part, drive the first motor to rotate the second gear, and the second gear to rotate the first gear. Through the meshing of the first gear and the rack, drive the U-shaped frame and the limiting plate to move down, and press the top of the limiting plate to limit it. S2. The motor drives the second lead screw to rotate, the slider moves along the second lead screw slide, the auxiliary plate and the limit plate move with the slider, adjust the position of the parts, and complete the position calibration. S3. The second motor drives the first lead screw to rotate. The opposite threads on both sides of the first lead screw drive the two guide rods to move. The guide rods clamp the other end of the part, thus completing the clamping and limiting of the part. S4, the U-shaped frame and the limit plate move up, the electric push rod drives the carriage to move down and separate from the part, the motor and gearbox drive the chuck assembly to rotate, thus realizing the rotation of the part.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the telescopic protective sleeve is connected to the slider, and an electric push rod and a lead screw drive the slider to move between the connecting plate and the reinforcing plate. The connecting plate and the slider move synchronously, and the reinforcing plate and the bracket move synchronously with the connecting plate. This can realize the position adjustment of the slider and the parts. The infrared transmitter and the infrared receiver can assist in the position calibration of the parts and reduce the positional deviation of the parts when clamping, thereby ensuring the clamping effect. At the same time, the telescopic protective sleeve provides protection above the lead screw slide, reducing the entry of dust and debris into the lead screw slide and ensuring the normal use of the lead screw slide and the lead screw. 2. In this invention, the fixed block is connected to the electric push rod, the limiting plate is engaged with the U-shaped frame, the gear two drives the gear one to rotate, and the gear one drives the U-shaped frame to rise and fall, which can change the working height of the limiting plate. The electric push rod can change the working height of the bracket. The bracket can support the parts and ensure the stable placement of the parts before clamping. By moving the limiting plate down, the pressing and limiting of the parts can be achieved, reducing the shaking of the parts when they move. 3. The chuck assembly is rotatably connected to the gearbox, and the auxiliary frame is fixedly connected to the slider. The motor drives the gearbox to rotate. The chuck assembly clamps the part, and after the part is clamped, the chuck assembly rotates, which can realize the rotation of the part, thus facilitating the processing of different positions of the part. The pressure sensor can detect the clamping force of the guide rod on the part, avoiding damage to the part caused by excessive clamping force. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an automotive tooling fixture for producing automotive parts according to the present invention. Figure 2 This is a schematic diagram of the guide rod structure installation of an automotive tooling fixture for automotive parts production according to the present invention; Figure 3 This is a schematic diagram of the installation of a buffer spring structure for an automotive tooling fixture used in the production of automotive parts according to the present invention. Figure 4 This is a schematic diagram of the meshing structure of gear one and gear two in an automotive tooling fixture for producing automotive parts according to the present invention. Figure 5 This is a schematic diagram of the installation of an electric push rod for an automotive tooling fixture used in the production of automotive parts according to the present invention. Figure 6 This is a schematic diagram of the installation of a telescopic protective sleeve structure for an automotive tooling fixture used in the production of automotive parts according to the present invention. Figure 7This is a schematic diagram of the gearbox structure installation of an automotive tooling fixture for automotive parts production according to the present invention.

[0018] In the picture: 1. Limiting plate; 12. Motor 1; 13. Buffer spring; 14. Trailer; 15. Auxiliary plate; 16. Reinforcing plate; 161. Fixing block; 162. Electric push rod 1; 163. Laser rangefinder; 164. Infrared receiver; 17. Connecting plate; 171. Electric push rod 2; 18. U-shaped frame; 19. Gear 1; 191. Gear 2; 2. Lead screw slide 1; 21. Limiting block; 22. Pressure sensor; 23. Motor 2; 24. Lead screw 1; 25. Guide rod; 3. Base; 4. Lead screw slide 2; 41. Detection plate; 42. Motor 3; 43. Telescopic protective sleeve; 44. Slider; 45. Lead screw 2; 5. Chuck assembly; 51. Gearbox; 52. Auxiliary frame; 53. Motor 4. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Refer to Figures 1-7 As shown: An automotive tooling fixture for producing automotive parts includes a base 3. A first lead screw slide 2 and a second lead screw slide 4 are fixedly connected to the top of the base 3. A second motor 23 is fixedly connected to one side of the first lead screw slide 2. A first lead screw 24 is fixedly connected to the output shaft of the second motor 23. One end of the first lead screw 24 is rotatably connected to the first lead screw slide 2, and a guide rod 25 is threadedly connected to the first lead screw slide 2. The bottom of the guide rod 25 is slidably connected to the first lead screw slide 2. A limit block 21 is fixedly connected to the top of the guide rod 25. A pressure sensor 22 is embedded in the inner wall of the limit block 21. A third motor 42 is fixedly connected to one side of the second lead screw slide 4. The output shaft of the machine 3 42 is fixedly connected to the lead screw 2 45. One end of the lead screw 2 45 is rotatably connected to the lead screw slide 2 4. The lead screw 2 45 is connected to the slider 44 by a thread. The top of the slider 44 is connected to the auxiliary frame 52 by bolts. A chuck assembly 5 is set on one side of the auxiliary frame 52. One end of the chuck assembly 5 is rotatably connected to the gearbox 51. One side of the gearbox 51 is fixedly connected to the auxiliary frame 52, and the top of the gearbox 51 is fixedly connected to the motor 4 53. A telescopic protective sleeve 43 is fixedly connected to one side of the slider 44. One end of the telescopic protective sleeve 43 is fixedly connected to the lead screw slide 2 4. The slider 44 is slidably connected to the lead screw slide 2 4.

[0021] In this embodiment, motor 23 starts, and its output shaft drives lead screw 24 to rotate within lead screw slide 2. Since lead screw 24 and guide rod 25 are connected by threads, and the bottom of guide rod 25 is slidably connected to lead screw slide 2, the rotation of lead screw 24 is converted into linear sliding of guide rod 25 along lead screw slide 2. The limiting block 21 at the top of guide rod 25 moves with guide rod 25, achieving initial lateral limiting of the automotive parts. At the same time, pressure sensor 22, which is embedded in the inner wall of limiting block 21, detects the pressure value of the limiting block 21 in contact with the parts in real time. Pressure sensor 22 can monitor the contact pressure between limiting block 21 and parts in real time to prevent excessive pressure from causing deformation or damage to parts. To improve the safety of the machining process, motor 3 42 starts, and the output shaft drives lead screw 2 45 to rotate within lead screw slide 2 4. Lead screw 2 45 drives slider 44 to slide along lead screw slide 2 4 via threads. The auxiliary frame 52 on the top of slider 44 moves synchronously with slider 44, thereby driving the chuck assembly 5 on one side of the auxiliary frame 52 to move closer to or away from the part, thereby adjusting the clamping position. After motor 4 53 starts, its power is transmitted to chuck assembly 5 through gearbox 51, driving chuck assembly 5 to rotate, thereby adjusting the clamping angle of the part. At the same time, the telescopic protective sleeve 43 on one side of slider 44 extends and retracts with slider 44, providing protection against dust and impurities for lead screw 2 45.

[0022] Example 2: According to Figures 1-5 As shown, a connecting plate 17 is inserted into one side of the slider 44. An electric push rod 171 is embedded inside the connecting plate 17. A reinforcing plate 16 is fixedly connected to one end of the electric push rod 171. A fixing block 161 is embedded inside the reinforcing plate 16. An infrared receiver 164 is fixedly connected to one side of the reinforcing plate 16. An infrared transmitter is installed on one side of the infrared receiver 164. The infrared transmitter is fixedly connected to the lead screw slide table 2. An electric push rod 162 is embedded inside the fixing block 161. A bracket 14 is fixedly connected to the top of the electric push rod 162. A buffer spring 13 is fixedly connected to the inner ring surface of the bracket 14. A laser rangefinder sensor 163 is fixedly connected to the bottom of the bracket 14. A detection plate 41 is provided on one side of the laser rangefinder 163. The bottom of the detection plate 41 is engaged with the slider 44. An auxiliary plate 15 is fixedly connected to one side of the reinforcing plate 16. The bottom of the auxiliary plate 15 is slidably connected to the base 3. A U-shaped frame 18 is slidably connected inside the auxiliary plate 15. A limit plate 1 is engaged with the top of the U-shaped frame 18. A rack is fixedly connected to one side of the U-shaped frame 18. A gear 19 meshes with one side of the rack. A gear 2 191 meshes with one side of the gear 19. Both gear 19 and gear 2 191 are rotatably connected to the inner wall of the auxiliary plate 15. The shaft of gear 2 191 is fixedly connected to the output shaft of motor 12. One side of motor 12 is fixedly connected to the auxiliary plate 15.

[0023] In this embodiment, two motors 12 are simultaneously activated by an external control device, and their output shafts drive gear 191 to rotate. Gear 191 meshes with gear 19, driving gear 19 to rotate. Gear 19 meshes with a rack on one side of the U-shaped frame 18. The limiting plate 1 at the top of the U-shaped frame 18 rises and falls smoothly with the U-shaped frame 18, which can realize the pressing and limiting of the top of the part. The electric push rod 171 in the connecting plate 17 on one side of the slider 44 is activated, pushing the reinforcing plate 16 closer to the part. The electric push rod 162 in the fixing block 161 in the reinforcing plate 16 extends, driving the carriage 14 to rise. The buffer spring 13 on the inner ring surface of the carriage 14 contacts the part, realizing the flexible clamping of the part. The laser ranging transmitter at the bottom of the carriage 14... Sensor 163 detects the distance to the detection plate 41 on the slider 44 in real time, providing feedback on the lifting position of the carriage 14 to ensure accurate clamping height. The buffer spring 13 prevents rigid contact between the carriage 14 and the part, preventing scratches or deformation on the part surface. The auxiliary plate 15 is slidably connected to the base 3, and the U-shaped frame 18 is slidably connected to the auxiliary plate 15. All components are tightly connected, resulting in low vibration during operation and further ensuring processing stability. The infrared transmitter on one side of the lead screw slide 2 emits infrared rays, and the infrared receiver 164 on the side of the reinforcing plate 16 receives the signal to calibrate the position of the slider 44, achieving position synchronization between the lead screw slide 2 and the reinforcing plate 16, ensuring the coordination of limit and clamping, and reducing positional deviation when clamping the part.

[0024] Example 3: A method for using an automotive tooling fixture for automotive parts production, comprising the following: Step 1: Place the shaft-shaped part to be processed in the carriage 14, and use the chuck assembly 5 to clamp one end of the part. The motor 12 drives the gear 2 191 to rotate, and the gear 2 191 drives the gear 19 to rotate. Through the meshing of the gear 19 and the rack, the U-shaped frame 18 and the limiting plate 1 are driven to move down, and the top of the limiting plate 1 is pressed and limited. Step 2: Motor 3 42 drives lead screw 2 45 to rotate, slider 44 moves along lead screw slide 2 4, auxiliary plate 15 and limit plate 1 move with slider 44 to adjust the position of the parts and complete the position calibration. Step 3: Motor 23 drives lead screw 1 24 to rotate. The opposite threads on both sides of lead screw 1 24 drive two guide rods 25 to move. The guide rods 25 clamp the other end of the part, thus completing the clamping and limiting of the part. Step 4: The U-shaped frame 18 and the limiting plate 1 move upward, the electric push rod 162 drives the carriage 14 to move downward and separate from the part, the motor 53 and the gearbox 51 drive the chuck assembly 5 to rotate, so that the part can be rotated.

[0025] The method of use and working principle of this invention are as follows: First, adjust the distance between the carriage 14 and the slider 44 according to the length of the shaft-shaped part. Drive the reinforcing plate 16 to move away from the slider 44 by the electric push rod 171. The auxiliary plate 15 slides along the base 3, and the limiting plate 1 slides synchronously with the auxiliary plate 15. The distance to the detection plate 41 is detected by the laser range sensor 163. The measurement data is obtained by the external controller to determine whether the carriage 14 has reached the designated position. If it has reached the designated position, place the part to be processed in the carriage 14. Engaging with the buffer spring 13, the chuck assembly 5 uses its internal drive structure to move the gripper, clamping one end of the part. Motor 12 drives gear 2 191 to rotate, which in turn drives gear 19 to rotate. Through the meshing of gear 19 with the rack, the U-shaped frame 18 and the limiting plate 1 move downward, pressing and limiting the top of the limiting plate 1. Motor 3 42 drives lead screw 2 45 to rotate, and the slider 44 moves along the lead screw slide 2 4. The telescopic protective sleeve 43 on one side of the slider 44 is stretched, while the telescopic protective sleeve 43 on the other side is correspondingly contracted. The auxiliary plate 15 and the limiting plate 1 move with the slider 44 to adjust the position of the part, so that the part is located above the center of the lead screw slide table 2. The signal emitted by the infrared transmitter on one side of the lead screw slide table 2 can be received by the infrared receiver 164. The surface slider 44 reaches the designated position, and the position calibration is completed. The motor 23 is started by the external controller. The motor 23 drives the lead screw 24 to rotate. The two guide rods 25 are driven to move towards the side closer to the part by the opposite threads on the lead screw 24. The symmetrically arranged guide rods 25 realize the movement of the other side of the part. During clamping, the pressure sensor 22 is in contact with the outer ring surface of the part, which can detect the pressure applied to the part by the guide rod 25, thereby reducing the damage caused by excessive force on the part and completing the clamping and limiting of the part. The motor 12 drives the gear 2 191 to rotate in the opposite direction, and the U-shaped frame 18 and the limiting plate 1 move upward, so that the limiting plate 1 can be removed from the top of the U-shaped frame 18. The electric push rod 162 drives the carriage 14 to move downward and separate from the part. The motor 4 53 and the gearbox 51 drive the chuck assembly 5 to rotate, which can realize the rotation of the part and facilitate the processing of different positions of the part.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automotive tooling fixture for producing automotive parts, comprising a base (3), characterized in that: The base (3) is fixedly connected to a lead screw slide 1 (2) and a lead screw slide 2 (4) at its top. A motor 2 (23) is fixedly connected to one side of the lead screw slide 1 (2). The output shaft of the motor 2 (23) is fixedly connected to a lead screw 1 (24). One end of the lead screw 1 (24) is rotatably connected to the lead screw slide 1 (2), and the lead screw 1 (24) is threadedly connected to a guide rod (25). The bottom of the guide rod (25) is slidably connected to the lead screw slide 1 (2), and the top of the guide rod (25) is fixedly connected to a... Limiting block (21), pressure sensor (22) is embedded in the inner wall of limiting block (21), motor three (42) is fixedly connected to one side of screw slide two (4), screw two (45) is fixedly connected to the output shaft of motor three (42), one end of screw two (45) is rotatably connected to screw slide two (4), screw two (45) is connected to slider (44) by thread, and auxiliary frame (52) is bolted to the top of slider (44), and chuck assembly (5) is provided on one side of auxiliary frame (52); A connecting plate (17) is inserted into one side of the slider (44). An electric push rod (171) is embedded inside the connecting plate (17). A reinforcing plate (16) is fixedly connected to one end of the electric push rod (171). A fixing block (161) is embedded inside the reinforcing plate (16). An infrared receiver (164) is fixedly connected to one side of the reinforcing plate (16). An infrared transmitter is provided on one side of the infrared receiver (164). The infrared transmitter is fixedly connected to the lead screw slide table (2) on one side. The fixed block (161) is fitted with an electric push rod (162), and a bracket (14) is fixedly connected to the top of the electric push rod (162). A buffer spring (13) is fixedly connected to the inner ring surface of the bracket (14). A laser rangefinder (163) is fixedly connected to the bottom of the trailer (14). A detection plate (41) is provided on one side of the laser rangefinder (163). The bottom of the detection plate (41) is engaged with the slider (44). An auxiliary plate (15) is fixedly connected to one side of the reinforcing plate (16). The bottom of the auxiliary plate (15) is slidably connected to the base (3). A U-shaped frame (18) is slidably connected inside the auxiliary plate (15). A limit plate (1) is engaged with the top of the U-shaped frame (18).

2. The automotive tooling fixture for producing automotive parts according to claim 1, characterized in that: One end of the chuck assembly (5) is rotatably connected to a gearbox (51), one side of the gearbox (51) is fixedly connected to an auxiliary frame (52), and a motor (53) is fixedly connected to the top of the gearbox (51).

3. The automotive tooling fixture for producing automotive parts according to claim 2, characterized in that: A telescopic protective sleeve (43) is fixedly connected to one side of the slider (44), and one end of the telescopic protective sleeve (43) is fixedly connected to the second lead screw slide (4). The slider (44) is slidably connected to the second lead screw slide (4).

4. The automotive tooling fixture for producing automotive parts according to claim 3, characterized in that: A rack is fixedly connected to one side of the U-shaped frame (18), a gear 1 (19) meshes with one side of the rack, and a gear 2 (191) meshes with one side of the gear 1 (19). Both gear 1 (19) and gear 2 (191) are rotatably connected to the inner wall of the auxiliary plate (15).

5. The automotive tooling fixture for producing automotive parts according to claim 4, characterized in that: The shaft of the gear 2 (191) is fixedly connected to the output shaft of the motor 1 (12), and one side of the motor 1 (12) is fixedly connected to the auxiliary plate (15).

6. A method of using an automotive tooling fixture for automotive parts production, characterized in that: The automotive tooling fixture for manufacturing automotive parts as described in claim 5 includes the following: S1. Place the shaft-shaped part to be processed in the carriage (14), and use the chuck assembly (5) to clamp one end of the part. Motor 1 (12) drives gear 2 (191) to rotate, and gear 2 (191) drives gear 1 (19) to rotate. Through the meshing of gear 1 (19) and rack, drive U-shaped frame (18) and limiting plate (1) to move down, and press and limit the top of limiting plate (1). S2. Motor 3 (42) drives screw 2 (45) to rotate, slider (44) moves along screw slide 2 (4), auxiliary plate (15) and limit plate (1) move with slider (44) to adjust the position of the parts and complete the position calibration; S3. Motor 2 (23) drives lead screw 1 (24) to rotate. The opposite threads on both sides of lead screw 1 (24) drive two guide rods (25) to move. The guide rods (25) clamp the other end of the part and complete the clamping and limiting of the part. S4, U-shaped frame (18) and limit plate (1) move upward, electric push rod one (162) drives the carriage (14) to move downward and separate from the part, motor four (53) and gearbox (51) drive chuck assembly (5) to rotate, so that the part can be rotated.

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