A positioning accurate nut piece press-fitting equipment

Abstract

The utility model relates to nut piece press -mounting technical field, especially a nut piece press -mounting equipment of accurate positioning, it includes frame and two press -mounting platform, and press -mounting platform is installed in the frame, the inside top of frame is fixed with electric telescopic cylinder, and the power end of electric telescopic cylinder is connected with lifting block, and the left and right sides of lifting block are each equipped with lifting plate, and the lower end of lifting plate is equipped with press -mounting block, and the lower end of press -mounting block is opened with sliding slot, and the sliding slot is connected with return spring, and the lower end of return spring is connected with locating post, and locating post slides down and extends out below the sliding slot, and the periphery of locating post is opened with contraction groove, and the contraction groove is connected with reset spring, the utility model makes the press -mounting process operation of nut convenient, not only reduces the work load, and is favorable to the improvement work efficiency, and is favorable to the emergence of nut deviation situation, effectively prevents the damage of engine support due to the inaccuracy of press -mounting.

Description

Technical Field

[0001] This utility model relates to the field of nut pressing technology, and in particular to a nut pressing device with precise positioning. Background Technology

[0002] Nut press-fitting machine is a mechanical device that installs nut parts into the workpiece under pressure. The engine mount is an important part of automobiles. It is mounted on the engine and plays a role in shock absorption and support. Therefore, the quality of the engine mount plays an important role in the quality of automobiles. During the production process of engine mounts, it is often necessary to press nuts into the mounting holes of the engine mount. Currently, some nut pressing operations often involve manually aligning the nut parts with the mounting holes of the engine bracket to be installed. Manual pressing is labor-intensive, and over time, hand tremors can easily occur, making it difficult to align the nut parts and causing misalignment, or even damage to the engine bracket. Even if some pressing equipment can press the nuts mechanically, the pressing positions of different nuts are different. If the pressing position is difficult to adjust, it will affect the applicability of the equipment. Summary of the Invention

[0003] This utility model provides a nut pressing device with precise positioning, which facilitates the accurate installation of nut parts into the mounting holes of the engine bracket and ensures the applicability of the device.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A precision-positioning nut pressing device includes a frame and two pressing tables, wherein the pressing tables are installed inside the frame; An electric telescopic cylinder is fixed at the top of the frame. A lifting block is connected to the power end of the electric telescopic cylinder. Lifting plates are provided on both the left and right sides of the lifting block. A pressing block is provided at the lower end of each lifting plate. A sliding groove is opened at the lower end of the pressing block. A return spring is connected in the sliding groove. A positioning post is connected at the lower end of the return spring. The positioning post slides downward and extends out of the sliding groove. A shrinkage groove is opened around the perimeter of the positioning post. A return spring is connected in each shrinkage groove. A tensioning block that slides out of the shrinkage groove is connected to the end of the return spring. The lifting block is provided with a lateral position adjustment component at both its left and right ends, and the pressing block is provided with a longitudinal position adjustment component on its top. A support shaft is fixed between the two pressing tables. The support shaft is rotatably connected to the bottom of the frame, and a material changing drive assembly is provided outside the support shaft.

[0005] Furthermore, each of the lateral position adjustment components includes a telescopic rod and a lateral threaded adjustment shaft. The telescopic rods are connected between the lifting block and the lifting plate, and the lateral threaded adjustment shafts are rotatably connected to the side of the lifting block, and the lateral threaded adjustment shafts are threaded outward through the adjacent lifting plate.

[0006] Furthermore, a positioning groove is formed in the middle of the lower end of the positioning post, and a laser positioning head is connected in the positioning groove.

[0007] Furthermore, each of the longitudinal position adjustment components includes a longitudinal threaded adjustment shaft and a scale. The longitudinal threaded adjustment shaft is rotatably connected to the upper end of the press block, and the longitudinal threaded adjustment shaft extends upward through the adjacent lifting plate.

[0008] Furthermore, the scale is fixed to the upper end of the pressing block, and the scale slides upward through the adjacent lifting plate.

[0009] Furthermore, a magnet is embedded on the outer side of the tensioning block.

[0010] Furthermore, the tensioning block is arc-shaped.

[0011] Furthermore, the material changing drive assembly includes a motor, a PLC controller, a main gear, and a secondary gear. The motor and the PLC controller are both fixed to the bottom of the frame. The main gear is fixed to the power end of the motor. The secondary gear is fixedly sleeved around the support shaft and meshes with the main gear.

[0012] Furthermore, each of the lower outer sides of the pressing table is fixed with a support leg, and each of the lower ends of the support legs is rotatably connected with a ball bearing, which contacts the bottom of the frame.

[0013] The beneficial effects of this utility model are: By placing the nut around the positioning post, and using the spring force of the return spring to drive the tensioning block to tension and position the nut, the nut is prevented from falling off accidentally. When the nut is pressed into the mounting hole of the engine bracket, the positioning post retracts into the slide groove, and the tensioning block retracts into the shrinkage groove, so the nut will fall off automatically. Then, the pressing block presses the nut into the mounting hole of the engine bracket, making the pressing process of the nut convenient, reducing the workload and improving work efficiency. The laser positioning head aligns the light emitted by the laser with the mounting holes of the engine mount, thus enabling quick and accurate pressing of the nuts and other parts. This helps to avoid misalignment of the nuts and effectively prevents damage to the engine mount due to inaccurate pressing. By setting up a horizontal position adjustment component, the left and right pressing positions of the nut parts can be easily adjusted. Furthermore, by setting up a vertical position adjustment component, the pressing height of the nut parts can be easily adjusted. Therefore, it is convenient to press up nut parts at various positions and heights, effectively ensuring the applicability of the equipment. By setting up a material change drive component, it is easy to quickly change the engine bracket on the next pressing table for pressing nut parts. The material change speed is fast, which effectively improves the pressing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lifting block structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the press block of this utility model; Figure 4 This is a top view of the internal structure of the positioning column of this utility model.

[0015] Explanation of reference numerals in the attached figures: Frame 1, Pressing table 2, Electric telescopic cylinder 3, Lifting block 4, Lifting plate 5, Horizontal threaded adjustment shaft 6, Telescopic rod 7, Longitudinal threaded adjustment shaft 8, Scale 9, Pressing block 10, Positioning column 11, Tensioning block 12, Slide groove 13, Return spring 14, Magnet block 15, Shrinkage groove 16, Return spring 17, Positioning groove 18, Laser positioning head 19, Motor 20, PLC controller 21, Main gear 22, Auxiliary gear 23, Support leg 24, Ball bearing 25, Support shaft 26. Detailed Implementation

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0017] like Figure 1-4 As shown, this embodiment includes a frame 1 and two pressing platforms 2. The pressing platforms 2 are installed inside the frame 1. An electric telescopic cylinder 3 is fixed at the top of the frame 1. The power end of the electric telescopic cylinder 3 is connected to a lifting block 4. Lifting plates 5 are provided on both the left and right sides of the lifting blocks 4. Pressing blocks 10 are provided at the lower ends of the lifting plates 5. A sliding groove 13 is opened at the lower end of the pressing block 10. A return spring 14 is connected in the sliding groove 13. A positioning post 11 is connected at the lower end of the return spring 14. The positioning post 1 slides downward and extends below the sliding groove 13. A shrinkage groove 16 is opened around the periphery of the positioning post 11. A return spring 17 is connected in the shrinkage groove 16. A tensioning block 12 that slides out of the shrinkage groove 16 is connected at the end of the return spring 17. The tensioning block 12 is arc-shaped.

[0018] By fitting the nut around the positioning post 11, the nut pushes the tensioning block 12 into the contraction groove 16 along the arc surface of the arc-shaped tensioning block 12. The tensioning block 12 compresses the return spring 17 until the upper end of the nut abuts against the lower end of the pressing block 10. Combined with the elastic force of the return spring 17, the tensioning block 12 tensions and positions the nut, preventing it from falling off accidentally. Then, the extension of the electric telescopic cylinder 3 causes the lifting block 4, lifting plate 5, pressing block 10, positioning post 11, and nut to move downward. When the nut is pressed into the mounting hole of the engine bracket, the positioning post 11 abuts against the bottom end of the mounting hole. Therefore, the positioning post 11 compresses the return spring 14 and retracts into the slide groove 13. At this time, the pressing block pushes the nut downward, so the tensioning block 12 no longer tensions the nut, and the nut falls off automatically. Combined with the pressing block 10, the nut is then pressed into the mounting hole of the engine bracket. This makes the nut pressing process convenient, reducing workload and improving work efficiency.

[0019] like Figure 3 As shown in this embodiment, a magnet block 15 is embedded on the outer side of the tensioning block 12.

[0020] When the tensioning block 12 tensions the nut, it simultaneously attracts the nut through the magnet block 15, which helps to better prevent the nut from accidentally falling off.

[0021] like Figure 2 As shown in this embodiment, the left and right ends of the lifting block 4 are provided with lateral position adjustment components. Each lateral position adjustment component includes a telescopic rod 7 and a lateral threaded adjustment shaft 6. The telescopic rod 7 is connected between the lifting block 4 and the lifting plate 5. The lateral threaded adjustment shaft 6 is rotatably connected to the side of the lifting block 4, and the lateral threaded adjustment shaft 6 is threaded outward through the adjacent lifting plate 5.

[0022] When it is necessary to adjust the left and right pressing position of the nut, the horizontal threaded adjusting shaft 6 is turned and the lifting plate 5 is moved left and right. At the same time, the lifting plate 5 will stretch or compress the telescopic rod 7 to ensure the stability of the lifting plate 5 when it moves left and right. Therefore, the lifting plate 5 will drive the pressing block 10, the positioning column 11 and the nut to move left and right together, so the left and right pressing position of the nut parts can be easily adjusted.

[0023] like Figure 2 As shown in this embodiment, each of the pressing blocks 10 is provided with a longitudinal position adjustment component. Each longitudinal position adjustment component includes a longitudinal threaded adjustment shaft 8 and a scale 9. The longitudinal threaded adjustment shaft 8 is rotatably connected to the upper end of the pressing block 10, and the longitudinal threaded adjustment shaft 8 extends upward through the adjacent lifting plate 5. The scale 9 is fixed to the upper end of the pressing block 10, and the scale 9 slides upward through the adjacent lifting plate 5.

[0024] When it is necessary to adjust the pressing height difference between the two pressing blocks 10 at the left and right ends, the longitudinal threaded adjusting shaft 8 is turned to drive the scale 9, pressing block 10, positioning pin 11 and nut to move up and down. Combined with the scale 9, the lifting height of the pressing block 10 can be accurately measured. Therefore, the pressing height of the nut parts can be easily adjusted, and the pressing height difference between the two pressing blocks 10 at the left and right ends can be easily adjusted.

[0025] like Figure 3 As shown in this embodiment, a positioning groove 18 is formed in the middle of the lower end of the positioning post 11, and a laser positioning head 19 is connected in the positioning groove 18.

[0026] Furthermore, when adjusting the pressing position, the light emitted from the laser positioning head 19 is aligned with the mounting hole of the engine bracket. Therefore, the nut parts can be pressed into the mounting hole of the engine bracket quickly and accurately, which helps to avoid the nut from being misaligned and effectively prevents the engine bracket from being damaged due to inaccurate pressing.

[0027] like Figure 1 As shown, in this embodiment, a support shaft 26 is fixed between the two pressing tables 2. The support shaft 26 is rotatably connected to the bottom of the frame 1, and a material changing drive assembly is provided outside the support shaft 26. The material changing drive assembly includes a motor 20, a PLC controller 21, a main gear 22, and a secondary gear 23. The motor 20 and the PLC controller 21 are both fixed to the bottom of the frame 1. The main gear 22 is fixed to the power end of the motor 20. The secondary gear 23 is fixedly sleeved around the support shaft 26, and the secondary gear 23 meshes with the main gear 22. Support legs 24 are fixed to the outer side of the lower end of each pressing table 2. Ball bearings 25 are rotatably connected to the lower end of each support leg 24, and the ball bearings 25 are in contact with the bottom of the frame 1.

[0028] By setting the PLC controller 21 to be electrically connected to the motor 20, the PLC controller 21 controls the operation of the motor 20. The motor 20 drives the main gear 22, the secondary gear 23, the support shaft, and the pressing table 2 to rotate 180 degrees and stop. With engine brackets placed on both pressing tables 2, it is convenient to quickly and easily replace the engine bracket on the next pressing table 2 for pressing the nut parts. Due to the fast material change speed, the pressing efficiency is effectively improved. Moreover, when the pressing table 2 rotates, it will drive the support leg 24 and the ball bearing 25 to move together. The ball bearing 25 rolls along the bottom of the frame 1. Therefore, the support leg 24 and the ball bearing 25 provide auxiliary support for the pressing table 2, which helps to ensure the stability of the pressing table 2.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] The above embodiments are preferred implementations of this utility model. In addition, other implementations are also included. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A precision-positioning nut pressing device, comprising a frame (1) and two pressing tables (2), wherein the pressing tables (2) are installed within the frame (1), characterized in that: An electric telescopic cylinder (3) is fixed at the top of the frame (1). The power end of the electric telescopic cylinder (3) is connected to a lifting block (4). Lifting plates (5) are provided on both the left and right sides of the lifting block (4). Pressing blocks (10) are provided at the lower end of the lifting plates (5). A sliding groove (13) is opened at the lower end of the pressing block (10). A return spring (14) is connected in the sliding groove (13). A positioning column (11) is connected at the lower end of the return spring (14). The positioning column (11) slides down and extends out of the sliding groove (13). A shrinkage groove (16) is opened around the periphery of the positioning column (11). A return spring (17) is connected in the shrinkage groove (16). A tensioning block (12) that slides out of the shrinkage groove (16) is connected at the end of the return spring (17). The lifting block (4) is provided with a horizontal position adjustment component at both the left and right ends, and the pressing block (10) is provided with a vertical position adjustment component above it; A support shaft (26) is fixed between the two pressing tables (2). The support shaft (26) is rotatably connected to the bottom of the frame (1), and a material changing drive assembly is provided outside the support shaft (26).

2. The precision positioning nut pressing equipment as described in claim 1, characterized in that: Each of the lateral position adjustment components includes a telescopic rod (7) and a lateral threaded adjustment shaft (6). The telescopic rod (7) is connected between the lifting block (4) and the lifting plate (5). The lateral threaded adjustment shaft (6) is rotatably connected to the side of the lifting block (4), and the lateral threaded adjustment shaft (6) is threaded outward through the adjacent lifting plate (5).

3. The precision positioning nut pressing equipment as described in claim 1, characterized in that: A positioning groove (18) is opened in the middle of the lower end of the positioning post (11), and a laser positioning head (19) is connected in the positioning groove (18).

4. The precise positioning nut pressing equipment as described in claim 1, characterized in that: Each of the longitudinal position adjustment components includes a longitudinal threaded adjustment shaft (8) and a scale (9). The longitudinal threaded adjustment shaft (8) is rotatably connected to the upper end of the press block (10), and the longitudinal threaded adjustment shaft (8) extends upward through the adjacent lifting plate (5).

5. The precision positioning nut pressing equipment as described in claim 4, characterized in that: The scale (9) is fixed to the upper end of the pressing block (10), and the scale (9) slides upward through the adjacent lifting plate (5).

6. The precision positioning nut pressing equipment as described in claim 1, characterized in that: A magnet (15) is embedded on the outer side of the tensioning block (12).

7. The precise positioning nut pressing equipment as described in claim 1, characterized in that: The tensioning block (12) is arc-shaped.

8. The precise positioning nut pressing equipment as described in claim 1, characterized in that: The material changing drive assembly includes a motor (20), a PLC controller (21), a main gear (22) and a secondary gear (23). The motor (20) and the PLC controller (21) are both fixed inside the bottom of the frame (1). The main gear (22) is fixed to the power end of the motor (20). The secondary gear (23) is fixedly sleeved around the support shaft (26) and meshes with the main gear (22).

9. The precise positioning nut pressing equipment as described in claim 1, characterized in that: Each of the pressing table (2) has a support leg (24) fixed on the outer side of its lower end. Each of the support legs (24) is rotatably connected to a ball bearing (25), which contacts the bottom of the frame (1).

Images