Clamp spring mounting mechanism

Abstract

The invention provides a snap spring mounting mechanism, and relates to the technical field of mechanical automation design. The clamp spring mounting mechanism comprises a lifting driving module, a translation driving module, a clamp spring execution module and a detection control module. The pneumatic claw mechanism has the function of moving back and forth, so that when the snap spring is lowered, a rotating shaft can be prevented from being collided, the clamping claw simulates the shape of a manual snap spring clamp, the snap spring is expanded by using the pneumatic claw with large expanding force, and the conditions that a traditional snap spring press-fitting sleeve is quickly worn and metal powder appears are avoided; and when the service life of the clamping jaw is reached, the clamping jaw can be quickly replaced, and the beats of a production line influenced by replacement of spare parts are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical automation design, in particular to a clip spring installation mechanism. Background Art

[0002] Automated machinery and equipment refers to mechanical equipment that automatically completes specific operations or tasks according to pre-set procedures or instructions without human intervention. It integrates knowledge from multiple disciplines, including mechanical design, electronics, sensor technology, computer technology, and control theory, enabling continuous, stable, and efficient operation. Automated machinery and equipment typically feature automatic detection, automatic control, and automatic adjustment. These functions reduce manual operations, improve production efficiency, product quality, and consistency, and reduce labor intensity and human error. They are widely used in numerous industries, including manufacturing, logistics, food processing, packaging, electronics, and automotive. For example, CNC machine tools in automated production lines automatically process parts, automatic packaging machines automatically measure, fill, and seal products, and automated warehousing and logistics equipment enable the automated storage, handling, and sorting of goods. Circlip assembly in automated machinery and equipment involves the assembly and related design of the circlip on components such as shafts during the design process for automated machinery and equipment in the advancement of industrial automation. Specifically, the circlip needs to be installed according to the circlip groove on the rotating shaft, and the circlip needs to be stretched and embedded in the circlip groove. At present, the industry has implemented this assembly by using manual operation with the help of circlip pliers, semi-automatic use of circlips to open the conical sleeve and press, and automation through assembly mechanism and telescopic cylinder. However, different methods have their own disadvantages under special working conditions.

[0003] With the development of science and technology and the support of the country, all walks of life are striving to promote the process of industrial automation, and in the process of realizing automation, the design of automatic mechanical equipment is an important link. Among them, in the assembly of the circlip, the circlip needs to be assembled according to the circlip groove on the shaft. In the assembly process, the circlip needs to be opened and embedded into the circlip groove on the shaft. Nowadays, there are generally three kinds of common solutions to achieve this purpose in the industry: 1. Using manual method: using circlip pliers to open the circlip, and then manually inserting the circlip into the circlip groove in the open state of the circlip. 2. Using semi-automatic method: manually placing the circlip into the circlip opening cone sleeve, and pressing the circlip downward by the press to press into the circlip groove of the shaft. 3. Using automatic method: by setting two assembly mechanisms, the extension cylinder drives the two assembly mechanisms to slide forward, which can eject the circlip from the arc-shaped feeding slide rail to realize the installation of the circlip; by setting two brackets, the two brackets can place the shaft to be installed on the circlip on the two brackets, facilitating the installation of the circlip. However, for some special working conditions, the above schemes have certain disadvantages. For example, the manual feeding method has low efficiency and cannot guarantee the accuracy, which affects the subsequent automatic assembly. The semi-automatic assembly of scheme two solves the problem of low efficiency of manual assembly, but due to the small diameter of some rectangular cross-section circlips, the force required to open the circlip is very large, and when the circlip is pressed down, the friction force of the circlip on the sleeve will also be very large, which will cause the service life of the sleeve to be shortened, and metal powder will be generated during the pressing process. The third scheme, CN218518580U, is an automatic circlip assembly device for motor rotor, which presses the circlip into the circlip groove of the shaft from the side. However, due to the side pressing installation, it is not suitable for some shafts with limited space. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a circlip installation mechanism, which solves the problems of low efficiency, short service life and poor applicability of the prior art.

[0005] To achieve the above purpose, the present application is implemented by the following technical scheme: a circlip installation mechanism, comprising a lifting drive module, a translation drive module, a circlip execution module and a detection control module, the lifting drive module comprising an up-down moving cylinder mounting plate, four guide shafts, an up-down moving cylinder, four linear bearings, a floating joint, a buffer mounting piece, an oil buffer, a striking block and a No. 1 stop bolt.

[0006] The translation drive module includes front and rear moving cylinder mounting plate, front and rear moving plate, linear guide rail mounting plate, linear guide rail, front and rear moving cylinder, connecting block, fish eye joint connecting column, fish eye joint, stop block, stop bolt mounting block, No. 3 stop bolt;

[0007] The clamp spring execution module includes air claw mounting plate, clamp jaw mounting block, clamp spring clamp jaw, clamp jaw clamping block, cam handle, air claw, clamp spring limit block mounting plate, clamp spring limit block, No. 1 positioning pin, No. 2 positioning pin, tension spring, reinforcing rib;

[0008] The detection control module includes laser sensor, inductor support, No. 1 magnetic switch, No. 2 magnetic switch, sensor support and proximity switch.

[0009] Preferably, the buffer mounting piece is fixedly connected with the upper ends of four guide shafts and is provided with an oil pressure buffer and a No. 1 stop bolt, the linear guide rail mounting plate is fixedly connected with the lower ends of the four guide shafts and is provided with a linear guide rail, the up and down moving cylinder mounting plate is fixedly provided with an up and down moving cylinder and four linear bearings, the guide shafts are slidably sleeved in the linear bearings, the floating joint is bolted to the piston rod of the up and down moving cylinder and the linear guide rail mounting plate, the impact block is bolted to the bottom of the up and down moving cylinder mounting plate and is coaxially positioned with the oil pressure buffer, and the front and rear moving plate is bolted to the slider of the linear guide rail.

[0010] Preferably, the front and rear moving cylinder mounting plate is bolted to install the front and rear moving cylinder and is fixed to the side surface of the linear guide rail mounting plate, one end of the connecting block is threadedly connected to the piston rod of the front and rear moving cylinder through the fish eye joint and the fish eye joint connecting column, the other end is bolted to the front and rear moving plate, the reinforcing ribs are bolted at both ends to the front and rear moving plate and the air claw mounting plate, the air claw is bolted to the bottom surface of the air claw mounting plate, the clamp jaw mounting block is threadedly connected to the slider of the air claw, the clamp spring clamp jaw, the cam handle and the clamp jaw clamping block are hinged to the clamp jaw mounting block, and the clamp jaw clamping block is pressed to clamp the clamp spring clamp jaw through the cam handle.

[0011] Preferably, the clamp spring limit block mounting plate is bolted to the air claw mounting plate and is provided with a clamp spring limit block, the stop bolt mounting block is bolted to the linear guide rail mounting plate and is provided with a No. 3 stop bolt, the No. 2 stop bolt is threadedly mounted to the side surface of the clamp jaw mounting block, the tension spring is hooked at both ends to the clamp jaw mounting block and the cam handle, and the No. 1 positioning pin and the No. 2 positioning pin are pressed into the clamp jaw mounting block and abut against the root of the clamp spring clamp jaw.

[0012] Preferably, the sensor support is provided with a proximity switch to detect the position of the up and down movement of the air claw, the inductor support is provided with a laser sensor to detect the position of the clamp spring, the No. 1 magnetic switch is mounted to the cylinder body of the front and rear moving cylinder to detect the stroke position, and the No. 2 magnetic switch is mounted to the air claw to detect the opening and closing state.

[0013] Preferably, the impact end face of the oil buffer is adjustable with the impact block, and the upper end face of the first stop bolt is adjustable with the impact block, and the clamping spring limit block is provided with a V-shaped positioning stop edge, and the distance between the stop edge and the tip of the clamping spring jaw is 0.5 mm.

[0014] Preferably, the end of the second stop bolt is kept 0.5 mm gap with the open limit position of the clamping spring jaw, the end of the third stop bolt intersects with the movement trajectory of the connecting block, the screwing depth is adjustable, the threaded shaft of the cam handle is eccentrically arranged with the pressing surface of the clamping jaw block, the eccentricity is 2-5 mm, and the perpendicularity tolerance of the sliding block movement direction of the linear guide rail to the axis of the guide shaft is ≤0.02 mm / 100 mm.

[0015] The application provides a clamping spring mounting mechanism.

[0016] The application provides a clamping spring mounting mechanism, and the application realizes breakthrough advantages through innovative design, directly pries open the clamping spring by adopting a bionic clamping spring tong structure, completely avoids the metal powder pollution and the rapid wear of the sleeve caused by the friction between the conical sleeve and the clamping spring in the traditional scheme, significantly improves the wear life, successfully breaks through the space barrier of the side pressure type assembly through three-dimensional avoidance movement design, avoids the collision damage between the clamping spring and the rotating shaft during the lowering process of the clamping spring, is particularly suitable for assembly scenes of narrow cavities or complex axial structures, integrates a quick clamping mechanism, enables the worn clamping jaw to be replaced in a very short time, significantly reduces the production capacity loss caused by production line maintenance downtime, controls the positioning accuracy of the clamping jaw at a high level through double protection design, detects the clamping spring in-place state in real time by means of an intelligent sensing system, combines closed-loop monitoring of the cylinder stroke, can monitor the operation state of the mechanism in real time, greatly increases the stability of the mechanism, and makes the assembly position repeat accuracy under high-frequency impact reach a high level through kinetic energy dissipation design, realizes truly unmanned precise assembly, solves the three industry bottlenecks of sleeve wear, space interference and downtime maintenance, significantly improves the clamping spring assembly qualification rate and shortens the assembly beat through the collaborative innovation of the bionic clamping jaw and the intelligent driving system, and becomes a revolutionary assembly scheme suitable for high-end equipment manufacturing such as micro motors and precision reducers. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the application;

[0018] Figure 2 It is a side view schematic diagram of the application;

[0019] Figure 3 It is an axial side view schematic diagram of the application;

[0020] Figure 4 It is a cross-sectional view schematic diagram of the clamping jaw quick-change mechanism of the application.

[0021] Wherein, 1, buffer mounting; 2, up and down moving air cylinder mounting plate; 3, linear guide rail mounting plate; 4, front and rear moving air cylinder mounting plate; 5, impact block; 6, air claw mounting plate; 7, clamp spring jaw; 8, clamp jaw mounting block; 9, clamp jaw clamping block; 10, stop block; 11, clamp spring limiting block mounting plate; 12, stop bolt mounting block; 13, front and rear moving plate; 14, sensor support; 15, connecting block; 16, fish eye joint connecting column; 17, clamp spring limiting block; 18, reinforcing rib; 19, proximity switch; 20, up and down moving air cylinder; 21, floating joint; 22, front and rear moving air cylinder; 23, No. 1 magnetic switch; 24, oil pressure buffer; 25, fish eye joint; 26, laser sensor; 27, inductor support; 28, tension spring; 29, linear bearing; 30, No. 1 positioning pin; 31, No. 2 positioning pin; 32, guide shaft; 33, No. 1 stop bolt; 34, No. 2 stop bolt; 35, No. 3 stop bolt; 36, No. 2 magnetic switch; 37, air claw; 38, linear guide rail; 39, cam handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] As shown in the figure, the present application provides a clamp spring mounting mechanism, which comprises a lifting driving module, a translation driving module, a clamp spring execution module and a detection control module. Figures 1-4 The lifting driving module comprises an up and down moving air cylinder mounting plate 2, four guide shafts 32, an up and down moving air cylinder 20, four linear bearings 29, a floating joint 21, a buffer mounting 1, an oil pressure buffer 24, an impact block 5 and a No. 1 stop bolt 33.

[0024] The translation driving module comprises a front and rear moving air cylinder mounting plate 4, a front and rear moving plate 13, a linear guide rail mounting plate 3, a linear guide rail 38, a front and rear moving air cylinder 22, a connecting block 15, a fish eye joint connecting column 16, a fish eye joint 25, a stop block 10, a stop bolt mounting block 12 and a No. 3 stop bolt 35.

[0025] The clamp spring execution module comprises an air claw mounting plate 6, a clamp jaw mounting block 8, a clamp spring jaw 7, a clamp jaw clamping block 9, a cam handle 39, an air claw 37, a clamp spring limiting block mounting plate 11, a clamp spring limiting block 17, a No. 1 positioning pin 30, a No. 2 positioning pin 31, a tension spring 28 and a reinforcing rib 18.

[0026] The detection control module comprises a laser sensor 26, a sensor support 27, a first magnetic switch 23, a second magnetic switch 36, a sensor support 14 and a proximity switch 19.

[0027] The buffer mounting member 1 is fixedly connected to the upper ends of the four guide shafts 32 and is provided with an oil pressure buffer 24 and a first stop bolt 33. The linear guide rail mounting plate 3 is fixedly connected to the lower ends of the four guide shafts 32 and is provided with linear guide rails 38. The up-down moving cylinder mounting plate 2 is fixedly provided with the up-down moving cylinder 20 and four linear bearings 29. The guide shafts 32 are slidably sleeved in the linear bearings 29. The floating joint 21 is bolted to the piston rod of the up-down moving cylinder 20 and the linear guide rail mounting plate 3. The impact block 5 is bolted to the bottom of the up-down moving cylinder mounting plate 2 and is coaxially positioned with the oil pressure buffer 24. The front-rear moving plate 13 is bolted to the slider of the linear guide rail 38.

[0028] The front-rear moving cylinder mounting plate 4 is bolted to the front-rear moving cylinder 22 and is fixedly arranged on the side surface of the linear guide rail mounting plate 3. The connecting block 15 is threadedly connected to the piston rod of the front-rear moving cylinder 22 through the fish eye joint 25 and the fish eye joint connecting column 16 at one end and is bolted to the front-rear moving plate 13 at the other end. The reinforcing ribs 18 are bolted to the front-rear moving plate 13 and the claw mounting plate 6 at two ends, respectively. The claw 37 is bolted to the bottom surface of the claw mounting plate 6. The claw mounting block 8 is threadedly connected to the slider of the claw 37. The clamping spring claw 7, the cam handle 39 and the claw clamping block 9 are hinged to the claw mounting block 8.

[0029] The clamping spring limiting block mounting plate 11 is bolted to the claw mounting plate 6 and is provided with the clamping spring limiting block 17. The stop bolt mounting block 12 is bolted to the linear guide rail mounting plate 3 and is provided with the third stop bolt 35. The second stop bolt 34 is threadedly arranged on the side surface of the claw mounting block 8. The tension spring 28 is hooked to the claw mounting block 8 and the cam handle 39 at two ends, respectively. The first positioning pin 30 and the second positioning pin 31 are pressed into the claw mounting block 8 and abut against the root of the clamping spring claw 7.

[0030] The sensor support 14 is provided with the proximity switch 19 to detect the position of the up-down movement of the claw 37. The sensor support 27 is provided with the laser sensor 26 to detect the position of the clamping spring. The first magnetic switch 23 is arranged on the cylinder body of the front-rear moving cylinder 22 to detect the stroke position. The second magnetic switch 36 is arranged on the claw 37 to detect the opening and closing state.

[0031] The distance between the impact end surface of the oil pressure buffer 24 and the impact block 5 is adjustable. The distance between the upper end surface of the first stop bolt 33 and the impact block 5 is adjustable. The clamping spring limiting block 17 is provided with a V-shaped positioning edge. The distance between the lower side of the edge and the claw tip of the clamping spring claw 7 is 0.5 mm.

[0032] The end of the No. 2 stop bolt 34 is 0.5 mm apart from the limit position of the clamping jaw 7, the end of the No. 3 stop bolt 35 intersects with the movement track of the connecting block 15, the screwing depth can be adjusted, the threaded shaft of the cam handle 39 is eccentrically arranged with the pressing surface of the clamping jaw block 9, the eccentricity is 2-5 mm, the perpendicularity tolerance of the sliding block movement direction of the linear guide rail 38 to the axis of the guide shaft 32 is ≤0.02 mm / 100 mm.

[0033] Based on the pain points of the prior art proposed in the background art, the present technology realizes a breakthrough advantage through original design: the innovative design of the quenching clamping jaw 7 accurately imitates the shape of the manual clamping jaw pliers, and the large tensioning force jaw 37 directly pries open the clamping jaw, completely avoiding the problem of metal powder pollution and rapid wear of the sleeve caused by friction between the tapered sleeve and the clamping jaw, especially when assembling high-strength rectangular cross-section small-diameter clamping jaws, significantly improving the wear life; through the action logic of driving the air claw mechanism to move horizontally first and then vertically on the linear guide rail 38 by the front and rear moving cylinders 22, and then vertically lowering by the up and down moving cylinders 20, the spatial barrier of side pressure assembly is successfully broken, avoiding the damage caused by the collision between the clamping jaw and the rotating shaft during the lowering of the clamping jaw, especially suitable for assembly scenes in narrow cavities or complex axial structures; the linkage quick-change module of the cam handle 39 and the tension spring 28 integrated in the clamping jaw mounting block 8 enables the worn clamping jaw to be quickly replaced, and the positioning accuracy of the clamping jaw is controlled at a high level through the double protection of the clamping jaw limiting block 17 and the No. 2 stop bolt 34, significantly reducing the production capacity loss caused by production line maintenance downtime; with the help of the laser sensor 26 for real-time detection of the clamping jaw positioning state, combined with the closed-loop monitoring of the cylinder stroke by the No. 1 magnetic switch 23 and the No. 2 magnetic switch 36, the running state of the mechanism can be monitored in real time, greatly increasing the stability of the mechanism, and through the kinetic energy dissipation design of the oil buffer 24 and the impact block 5, the assembly position repeatability under high-frequency impact reaches a high level, achieving truly unmanned precise assembly; the core technical advantages are concentrated in: while solving the problems of sleeve wear, spatial interference and downtime maintenance, through the synergistic innovation of bionic clamping jaws and intelligent driving systems, the clamping jaw assembly qualification rate is significantly improved and the assembly rhythm is shortened, becoming a revolutionary assembly solution suitable for high-end equipment manufacturing such as micro-motors and precision reducers.

[0034] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring retaining device, comprising a lifting drive module, a translation drive module, a spring retaining device execution module, and a detection and control module, characterized in that: The lifting drive module comprises an up-and-down moving cylinder mounting plate (2), four guide shafts (32), an up-and-down moving cylinder (20), four linear bearings (29), a floating joint (21), a buffer mounting member (1), an oil pressure buffer (24), a collision block (5), and a No. 1 stop bolt (33); The translation drive module comprises a front-to-back moving cylinder mounting plate (4), a front-to-back moving plate (13), a linear guide rail mounting plate (3), a linear guide rail (38), a front-to-back moving cylinder (22), a connecting block (15), a fisheye joint connecting column (16), a fisheye joint (25), a stop block (10), a stop bolt mounting block (12), and a No. 3 stop bolt (35); The circlip execution module comprises an air claw mounting plate (6), a clamping claw mounting block (8), a circlip clamping claw (7), a clamping claw clamping block (9), a cam handle (39), an air claw (37), a circlip limit block mounting plate (11), a circlip limit block (17), a No. 1 positioning pin (30), a No. 2 positioning pin (31), a tension spring (28), and a reinforcing rib (18); The detection control module comprises a laser sensor (26), a sensor bracket (27), a first magnetic switch (23), a second magnetic switch (36), a sensor bracket (14) and a proximity switch (19).

2. A retaining spring installation mechanism according to claim 1, characterized in that: The buffer mounting member (1) is fixedly connected to the upper ends of the four guide shafts (32) and is installed with a hydraulic buffer (24) and a No. 1 stop bolt (33); the linear guide rail mounting plate (3) is fixedly connected to the lower ends of the four guide shafts (32) and is installed with a linear guide rail (38); the up-and-down moving cylinder mounting plate (2) is fixedly installed with the up-and-down moving cylinder (20) and four linear bearings (29); the guide shaft (32) is slidably sleeved in the linear bearing (29); the floating joint (21) is bolted to connect the piston rod of the up-and-down moving cylinder (20) and the linear guide rail mounting plate (3); the impact block (5) is bolted to the bottom of the up-and-down moving cylinder mounting plate (2) and is coaxially aligned with the hydraulic buffer (24); the front-and-rear moving plate (13) is bolted to the slider of the linear guide rail (38).

3. The retaining spring installation mechanism according to claim 1, characterized in that: The front-rear moving cylinder mounting plate (4) is bolted to the front-rear moving cylinder (22) and is fixed to the side of the linear guide rail mounting plate (3). One end of the connecting block (15) is threadedly connected to the piston rod of the front-rear moving cylinder (22) through a fisheye joint (25) and a fisheye joint connecting column (16), and the other end is bolted to the front-rear moving plate (13). The two ends of the reinforcing rib (18) are respectively bolted to the front-rear moving plate (13) and the air claw mounting plate (6). The air claw (37) is bolted to the bottom surface of the air claw mounting plate (6). The clamping jaw mounting block (8) is threadedly connected to the slider of the air claw (37), and is hinged on the clamping jaw (7), the cam handle (39) and the clamping jaw clamping block (9). The clamping jaw clamping block (9) presses the clamping jaw (7) through the cam handle (39).

4. The retaining spring installation mechanism according to claim 1, characterized in that: The retaining spring limit block mounting plate (11) is bolted to the air claw mounting plate (6) and the retaining spring limit block (17) is installed. The stop bolt mounting block (12) is bolted to the linear guide rail mounting plate (3) and a No. 3 stop bolt (35) is installed thereon. The No. 2 stop bolt (34) is threadedly installed on the side of the clamping jaw mounting block (8). The two ends of the tension spring (28) are respectively hooked on the clamping jaw mounting block (8) and the cam handle (39). The No. 1 positioning pin (30) and the No. 2 positioning pin (31) are pressed into the clamping jaw mounting block (8) and abut the root of the retaining spring clamping jaw (7).

5. The retaining spring installation mechanism according to claim 1, characterized in that: The sensor bracket (14) is installed with a proximity switch (19) to detect the position of the up and down movement of the air claw (37), the sensor bracket (27) is installed with a laser sensor (26) to detect the position of the retaining spring, the first magnetic switch (23) is installed on the cylinder body of the forward and backward moving cylinder (22) to detect its stroke position, and the second magnetic switch (36) is installed on the air claw (37) to detect its open and closed state.

6. The retaining spring installation mechanism according to claim 1, characterized in that: The distance between the impact end face of the oil pressure buffer (24) and the impact block (5) is adjustable, and the distance between the upper end face of the No. 1 stop bolt (33) and the impact block (5) is adjustable. The retaining spring limit block (17) is provided with a V-shaped positioning rib, and the distance between the lower side of the rib and the claw tip of the retaining spring clamp (7) is 0.5 mm.

7. The retaining spring installation mechanism according to claim 4, characterized in that: The end of the No. 2 stop bolt (34) maintains a 0.5mm gap with the limit opening position of the retaining spring clamp (7), the end of the No. 3 stop bolt (35) intersects with the movement trajectory of the connecting block (15), and its screw-in depth is adjustable. The threaded shaft of the cam handle (39) and the clamping surface of the clamping block (9) are eccentrically arranged, and the eccentricity is 2-5mm. The verticality tolerance of the movement direction of the slider of the linear guide rail (38) and the axis of the guide shaft (32) is ≤0.02mm / 100mm.

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