Torque adjusting nut assembly mechanism

Abstract

The utility model relates to electric drill gear box assembly technical field, and disclose a torque adjusting nut assembly mechanism, including screwing mechanism, the screwing mechanism includes the stand that stands in the edge of product conveying line, and, the translation frame that moves horizontally along the track on the stand is connected with the first cylinder that does vertical motion on the translation frame, the first cylinder's operating end head place adopts the rotation steel and is connected with the first grab, and the first grab is used for taking the adjusting nut and is screwed into the product on the conveying line, still include the positioner for adjusting nut positioner, the first grab is driven to go up and down with the first cylinder, and the first grab is driven to rotate with the cooperation of the rotation, so that the first grab can take the adjusting nut and screw into the assembly area of product, compared with prior art, the operation process of the device is faster, the overall efficiency is higher, and the overall assembly is more difficult to appear error, and the stability is better.

Description

Technical Field

[0001] This utility model relates to the field of electric drill gearbox assembly technology, specifically to a torque adjusting nut assembly mechanism. Background Technology

[0002] The adjusting nut in the gearbox of an electric drill is a key functional component for realizing speed regulation and power transmission. Through its cooperation with the spindle thread, it controls the gear meshing clearance and output torque, which directly affects the speed regulation accuracy, no-load speed and load stability of the electric drill.

[0003] The assembly of adjusting nuts in the industry generally relies on manual screwing, which still has the following shortcomings: When manually aligning threads, it is easy to "screw in at an angle", which will cause local extrusion deformation of the thread profile and low thread engagement quality; When tightening by hand, if the torque is too low, the nut is prone to loosening under vibration conditions; if the torque is too high, the threads will over-engage, causing plastic deformation of the spindle. Each process is time-consuming, labor-intensive, and has high skill requirements.

[0004] Therefore, a torque adjusting nut assembly mechanism is needed to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a torque adjusting nut assembly mechanism to solve the problems mentioned in the background art, which are that the assembly of adjusting nuts in the industry generally relies on manual screwing, resulting in low production efficiency, high labor costs, insufficient assembly accuracy, and poor product performance consistency.

[0006] This utility model provides the following technical solution: a torque adjusting nut assembly mechanism, including a tightening mechanism, wherein the tightening mechanism includes a stand erected at the edge of the product conveyor line; And a translation frame that moves horizontally along the track on the upright, and a first cylinder that moves vertically is connected to the translation frame; The first cylinder has a first gripper connected to a rotating steel plate at its operating end, which grips the adjusting nut and screws it onto the product on the conveyor line. It also includes an adjustment mechanism for adjusting the position of the nut.

[0007] To achieve the above technical solution, a first cylinder drives the first gripper to rise and fall, and a rotating spring drives the first gripper to rotate, so that the first gripper can pick up the adjusting nut and screw it into the assembly area of ​​the product. Compared with the existing technology, the operation process of this device is faster, the overall efficiency is higher, and the overall assembly is less prone to errors and has better stability.

[0008] As a further improvement to this utility model, the tightening mechanism also includes a vibrating feeder for adjusting the continuous feeding of the nut.

[0009] To achieve the above technical solution, the adjusting nuts are transported sequentially to the clamping positions.

[0010] As a further improvement to this utility model, the gripping surface of the first gripper is designed with a recess to adapt to the shape of the adjusting nut.

[0011] The above technical solution improves the stability of the first gripper in grasping the adjusting nut.

[0012] As a further improvement to this utility model, the adjustment mechanism includes a temporary storage platform located within the travel stroke of the translation frame. The temporary storage platform is connected to an adjustment seat adapted to the inner diameter of the adjustment nut by a servo motor, and the adjustment seat is provided with a raised area for positioning the adjustment nut.

[0013] The above technical solution facilitates the adjustment of the initial horizontal rotation angle when the nut is clamped.

[0014] As a further improvement to this utility model, a sensor for capturing the rotational position of the adjusting nut is connected to the outside of the adjusting seat.

[0015] Implementing the above technical solution facilitates the detection of the horizontal rotation angle of the adjusting nut.

[0016] As a further improvement to this utility model, the adjusting mechanism includes a second cylinder for transporting the adjusting nut to the adjusting seat, and the bottom end of the second cylinder is connected to a second gripper identical to the first gripper.

[0017] The above technical solution shortens the travel distance of the first gripper and improves operational efficiency.

[0018] As a further improvement to this utility model, the second cylinder is also connected to the translation frame and is symmetrical to the first cylinder along the Y-axis.

[0019] The above technical solution enables the first cylinder and the second cylinder to move simultaneously, improving the overall adaptability.

[0020] The technical effects and advantages of this utility model are as follows: 1. This utility model uses a first cylinder to drive the first gripper to rise and fall, and a rotating spring to drive the first gripper to rotate, so that the first gripper can pick up the adjusting nut and screw it into the assembly area of ​​the product.

[0021] 2. Compared with the prior art, the operation process of this device is faster, the overall efficiency is higher, and the overall assembly is less prone to errors and has better stability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a top-view perspective view of the overall structure of this utility model.

[0024] Figure 2 This is a front view schematic diagram of the overall structure of this utility model.

[0025] Figure 3 for Figure 1 A magnified view of the structure at point A in the middle.

[0026] The names represented by the part numbers in the above diagram are as follows: 100. Tightening mechanism; 110. Vertical frame; 111. Horizontal frame; 112. First cylinder; 113. First gripper; 114. Vibrating feeder; 200. Adjustment mechanism; 210. Temporary storage platform; 211. Adjustment seat; 212. Sensor; 213. Second cylinder; 214. Second gripper; Detailed Implementation The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] Example: Referring to the accompanying drawings, this utility model provides a torque adjusting nut assembly mechanism, which is used to realize the automated orientation gripping and tightening assembly of adjusting nuts on products. Its core structure and working process are as follows: In the tightening mechanism 100: The upright frame 110 is welded from square steel and has linear guide rails laid on its surface. The horizontal movement of the translation frame 111 is driven by a servo motor. The first cylinder 112 and the second cylinder 213 are symmetrically installed at the bottom of the guide rail of 110. The first cylinder 112 is vertically installed on one side of the translation frame 111. The running end is connected to the first gripper 113 (pneumatic gripper with a concave design on the gripping surface to match the shape of the adjusting nut, ensuring gripping stability) through a rotary cylinder, so as to realize the gripping and tightening action of the adjusting nut. The vibrating feeder 114 is an electromagnetic vibrating feeder that uses vibration to orient the adjusting nuts (with the nut grooves facing upwards). At the end of the stroke (i.e., the front end of 114), a material separating mechanism is provided (separating one nut at a time).

[0028] In the adjustment mechanism 200: The temporary storage platform 210 is fixed next to the stand 110. The top is connected to the adjustment seat 211 (made of metal, with a raised area on the surface that matches the inner diameter of the adjusting nut for pre-positioning of the nut) via a servo motor. This is used to adjust the direction of the nut. At the same time, a sensor 212 (laser beam sensor) is installed near the adjustment seat 211 to capture the direction of the nut protrusion. The second cylinder 213 is symmetrical to the first cylinder 112 along the Y-axis (the cylinder diameter and stroke parameters are the same as those of the first cylinder 112), and the bottom end is connected to the second gripper 214 (the structure is the same as that of the first gripper 113), which is used to move the adjusting nut from the vibrating feeder 114 to the adjusting seat 211.

[0029] Nut feeding and gripping / transfer Feeding: The vibrating feeder 114 orients and arranges the adjusting nuts and conveys them to the front material distribution position, waiting to be grabbed; Transfer to the adjustment seat: The translation frame 111 moves to the left along the upright frame 110, so that the second gripper 214 is above the material distribution position of the vibrating feeder 114. The second cylinder 213 descends, the second gripper 214 closes to grab the nut and then rises. The translation frame 111 returns to the right and transfers the nut to the top of the adjustment seat 211.

[0030] Nut orientation calibration Pre-positioning: The second cylinder 213 descends, inserting the nut into the raised area of ​​the adjusting seat 211. The adjusting seat 211 rotates to make the nut groove fit with the raised area, and the second gripper 214 releases and rises back to its original position. Direction detection and adjustment: Sensor 212 detects the direction of the nut protrusion. If the direction is deviated, the servo motor drives the adjustment seat 211 to rotate (rotation angle 0°~360°) to adjust the nut to the screw-in direction that matches the product (groove facing the preset angle) and wait for gripping.

[0031] Tightening the nut assembly Grabbing the calibrated nut: During the movement of the translation frame 111, when the second gripper 214 is located on the vibrating feeder 114, the first gripper 113 is simultaneously located above the adjusting seat 211, the first cylinder 112 descends, and the first gripper 113 grabs the calibrated nut and rises. Tightening to the product: The translation frame 111 moves to the right, causing the first gripper 113 to carry the nut to the product to be assembled on the product conveyor line. The first cylinder 112 descends, and the rotary cylinder drives the first gripper 113 to screw the nut into the product thread hole (the tightening depth is controlled by the stroke sensor). After the assembly is completed, the gripper is released, and the translation frame 111 resets to enter the next cycle.

[0032] Dual-station collaborative operation While the first gripper 113 tightens the nut, the second gripper 214 simultaneously completes the gripping and transfer of the next nut, realizing a continuous cycle of "gripping-adjusting-tightening" (single cycle ≤ 6 seconds, production efficiency ≥ 600 pieces / h).

[0033] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A torque adjusting nut assembly mechanism, characterized in that: Includes a tightening mechanism (100), which includes a stand (110) erected at the edge of the product conveyor line. And a translation frame (111) that moves horizontally along the track on the upright frame (110), and a first cylinder (112) that moves vertically is connected to the translation frame (111). The first cylinder (112) has a first gripper (113) connected to the running end by a rotating steel, which grips the adjusting nut and screws it onto the product on the conveyor line; It also includes an adjustment mechanism (200) for adjusting the position of the adjusting nut.

2. The torque adjusting nut assembly of claim 1, wherein: The tightening mechanism (100) also includes a vibrating feeder (114) for adjusting the continuous feeding of the nut.

3. The torque adjusting nut assembly of claim 1, wherein: The gripping surface of the first gripper (113) is designed with a recess to match the shape of the adjusting nut.

4. The torque adjusting nut assembly of claim 1, wherein: The adjustment mechanism (200) includes a temporary storage platform (210) located within the travel range of the translation frame (111). The temporary storage platform (210) is connected to an adjustment seat (211) adapted to the inner diameter of the adjustment nut by a servo motor. The adjustment seat (211) is provided with a raised area for positioning the adjustment nut.

5. The torque adjust nut assembly of claim 4, wherein: The adjustment seat (211) is connected to a sensor (212) on the outside to capture the rotation position of the adjustment nut.

6. The torque adjusting nut assembly mechanism according to claim 5, characterized in that: The adjustment mechanism (200) includes a second cylinder (213) for transporting the adjustment nut to the adjustment seat (211), and the bottom end of the second cylinder (213) is connected to a second gripper (214) that is the same as the first gripper (113).

7. The torque adjusting nut assembly mechanism according to claim 6, characterized in that: The second cylinder (213) is also connected to the translation frame (111) and is symmetrical about the Y-axis with the first cylinder (112).

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