Automatic mounting equipment for compression spring

Abstract

Automatic compression spring mounting equipment comprises a first linear driving mechanism fixedly arranged on one side of an assembly part of a compression spring to be mounted, and a base plate fixedly mounted on a moving part of the first linear driving mechanism; a feeding mechanism is fixedly installed on the base plate, a discharging pipe and a feeding port used for receiving spring pieces are arranged on the feeding mechanism, the feeding mechanism compresses the spring pieces to form compression springs, and the compression springs are sent out from the discharging pipe; the second linear driving mechanism is fixedly arranged on the other side of the assembly part; the limiting rod is fixedly mounted on the moving part of the second linear driving mechanism; the discharging pipe and the limiting rod are inserted into the process through hole of the assembly part, the end of the discharging pipe and the end of the limiting rod are in butt joint in the process through hole to form a discharging through hole, the two ends of the discharging through hole correspond to limiting structures on the assembly part, and the limiting structures are used for limiting the positions of the two ends of the compression spring, so that automatic assembly of the compression spring is achieved. Labor intensity is reduced, and assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automated spring assembly technology, and in particular to an automated compression spring installation device. Background Technology

[0002] There are several ways to install springs, including direct installation and compression installation. Compression installation involves first compressing the spring to a certain length and then releasing it at the target position. The compressed spring then provides elastic support through its elastic force.

[0003] Manual installation is currently the most common method for spring assembly. Its advantages include simple operation, low cost, and suitability for small-batch production. However, when the spring needs to be in a compressed state and there are no shafts to limit its movement, manual installation is difficult and often results in tilting or detachment. Furthermore, manual installation leads to low assembly efficiency and high labor intensity.

[0004] For example, when the assembly is a door closer, such as Figure 10 As shown, when manually assembling the compression spring, the latch bracket 61 needs to be lifted and the spring piece 1 needs to be positioned between the middle of the latch bracket 61 and the frame 63 through the process through hole 62 on the frame 63. Then, after the latch bracket 61 is installed in place, the spring piece 1 is in a compressed state. The operation process is cumbersome, inefficient, and prone to the situation where the compression spring is not installed properly.

[0005] Therefore, there is a need for a device that automatically installs compression springs to improve the problems in the above assembly process. Utility Model Content

[0006] In response to the shortcomings of the existing production technology, the applicant provides an automatic compression spring installation device, thereby realizing the automatic assembly of compression springs, reducing labor intensity, and improving assembly efficiency.

[0007] The technical solution adopted in this utility model is as follows:

[0008] An automatic compression spring installation device includes,

[0009] The first linear drive mechanism is fixedly mounted on one side of the assembly to which the compression spring is to be installed;

[0010] The substrate is fixedly mounted on the moving part of the first linear drive mechanism;

[0011] A feeding mechanism is fixedly installed on the substrate. The feeding mechanism is provided with a discharge pipe and a feed port for receiving spring components. The feeding mechanism compresses the spring components to form the compression spring and sends the compression spring out from the discharge pipe.

[0012] The second linear drive mechanism is fixedly disposed on the other side of the assembly;

[0013] The limiting rod is fixedly installed on the moving part of the second linear drive mechanism;

[0014] The discharge tube and the limiting rod are respectively inserted into the process through hole of the assembly under the drive of the first linear drive mechanism and the second linear drive mechanism. The end of the discharge tube and the end of the limiting rod are connected in the process through hole to form a discharge through hole. The two ends of the discharge through hole correspond to the limiting structure on the assembly. The limiting structure is used to limit the position of the two ends of the compression spring.

[0015] As a further improvement to the above technical solution:

[0016] The feeding mechanism comprises a third linear drive mechanism, a fourth linear drive mechanism, and a fifth linear drive mechanism fixedly mounted on the substrate.

[0017] A first feeding rod is fixedly installed on the movable part of the third linear drive mechanism;

[0018] A second feeding rod is fixedly installed on the movable part of the fourth linear drive mechanism;

[0019] A pressure rod is fixedly installed on the movable part of the fifth linear drive mechanism;

[0020] A busbar is also fixedly installed on the substrate. The busbar has a first channel, a second channel and a third channel. The ends of the first channel and the third channel intersect and connect with the middle of the second channel to form a junction cavity. The feed inlet is connected to the middle of the first channel. The discharge pipe is installed on the outside of the busbar and is coaxial with the second channel.

[0021] The first feeding rod moves within the first channel to convey the spring to the junction cavity. The pressure rod moves within the third channel to compress the spring into a compression spring within the junction cavity. The second feeding rod moves within the second channel to convey the compression spring, so that the compression spring passes through the discharge pipe and enters the discharge through hole.

[0022] The end of the first feeding rod is provided with a sleeve corresponding to the feed port. The diameter of the sleeve matches the outer diameter of the spring. One end of the sleeve is provided with a through hole, which corresponds to the second channel and matches the cross-sectional size of the second feeding rod.

[0023] The end of the second feeding rod is an arc surface that matches the circumference of the compression spring, and the end of the discharge tube is provided with an arc-shaped notch corresponding to the arc surface.

[0024] The manifold is equipped with a sensor, which is used to detect the spring entering the first channel.

[0025] Both the third and fourth linear drive mechanisms are slide cylinders.

[0026] It also includes a feeding pipe connected to the feed inlet.

[0027] Both the first linear drive mechanism and the second linear drive mechanism are slide cylinders.

[0028] The spring component is a cylindrical spring.

[0029] The assembly is a door closer, which includes a frame and a latch bracket mounted on the frame. A compression spring needs to be installed between the middle of the latch bracket and the frame to connect the latch bracket to the frame. The frame is provided with a process through hole, which corresponds to the compression spring.

[0030] The beneficial effects of this utility model are as follows:

[0031] This utility model has a compact and reasonable structure and is easy to operate. It automatically compresses and conveys the spring parts through the feeding mechanism. The linear drive mechanism drives the discharge pipe and the limiting rod of the feeding mechanism to extend into the process through hole of the assembly to form a discharge through hole. After the compressed spring parts are sent out from the discharge pipe, they are limited by the limiting structure on the assembly, thus completing the automatic installation of the compressed spring on the assembly. This realizes the automatic assembly of the compressed spring, reduces labor intensity, and improves assembly efficiency.

[0032] This utility model also has the following advantages:

[0033] (1) A sleeve is provided at the end of the first feeding rod. The sleeve is located below the feed inlet and is used to catch the spring and limit the spring to prevent it from tilting in the first channel. It also ensures that the spring is compressed by the pressure rod in the confluence cavity and plays a guiding and limiting role.

[0034] (2) The end of the second feeding rod is an arc surface that matches the circumference of the compression spring. The end of the discharge pipe is provided with an arc-shaped notch corresponding to the arc surface to ensure that the compression spring moves stably in the second channel and that the compression spring rebounds smoothly in the discharge through hole.

[0035] (3) The slide cylinder is used as a linear drive mechanism, which integrates the functions of guide rail, cylinder and limit switch, greatly saving installation space and improving the accuracy of the equipment. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of this utility model.

[0037] Figure 2 This is a schematic diagram of the structure of the present invention (when a discharge through hole is formed in the assembly).

[0038] Figure 3 This is an exploded view of the feeding mechanism of this utility model.

[0039] Figure 4 This is a cross-sectional view of the feeding mechanism of this utility model.

[0040] Figure 5 This is a partial structural assembly diagram of the feeding mechanism of this utility model.

[0041] Figure 6 This is a schematic diagram of the structure of the busbar of this utility model.

[0042] Figure 7 This is a structural schematic diagram (sectional view) of the busbar of this utility model.

[0043] Figure 8 This is a structural schematic diagram (sectional view) of the busbar of this utility model.

[0044] Figure 9 This is a structural schematic diagram of the assembly of this utility model (the assembly is a door closer).

[0045] Figure 10 for Figure 9 A sectional view.

[0046] in:

[0047] 1. Spring component; 2. First linear drive mechanism; 21. First support; 3. Base plate;

[0048] 4. Feeding mechanism; 41. Third linear drive mechanism; 42. Fourth linear drive mechanism;

[0049] 43. First feed rod; 431. Through hole; 432. Sleeve;

[0050] 44. Second feed rod; 441. Curved surface;

[0051] 45. Manifold; 451. Block-shaped body; 452. First channel; 453. Sensor; 454. Feed inlet; 455. Baffle; 456. Third channel; 457. Second channel;

[0052] 46. ​​Fifth linear drive mechanism; 461. Floating joint; 47. Pressure rod; 48. Discharge pipe; 481. Arc-shaped notch;

[0053] 5. Feeding tube;

[0054] 6. Assembly parts; 61. Lock tongue bracket; 62. Process through hole; 63. Frame; 64. Limiting plate; 65. Electromagnet;

[0055] 7. Limiting rod; 8. Second linear drive mechanism; 81. Second bracket; 9. Discharge through hole. Detailed Implementation

[0056] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0057] Example 1:

[0058] like Figures 1-5 As shown, the automatic compression spring installation device of this embodiment includes a first linear drive mechanism 2, a base plate 3, a feeding mechanism 4, a second linear drive mechanism 8, and a limiting rod 7.

[0059] The first linear drive mechanism 2 is fixedly mounted on one side of the assembly 6 on which the compression spring is to be installed;

[0060] The substrate 3 is fixedly mounted on the moving part of the first linear drive mechanism 2;

[0061] The feeding mechanism 4 is fixedly installed on the base plate 3. The feeding mechanism 4 is provided with a discharge pipe 48 and a feed port 454 for receiving the spring member 1. The feeding mechanism 4 compresses the spring member 1 to form a compression spring and sends the compression spring out from the discharge pipe 48.

[0062] The second linear drive mechanism 8 is fixedly installed on the other side of the assembly 6;

[0063] The limiting rod 7 is fixedly installed on the moving part of the second linear drive mechanism 8;

[0064] The discharge tube 48 and the limiting rod 7 are inserted into the process through hole 62 of the assembly 6 under the drive of the first linear drive mechanism 2 and the second linear drive mechanism 8, respectively. The end of the discharge tube 48 and the end of the limiting rod 7 are connected in the process through hole 62 to form a discharge through hole 9. The two ends of the discharge through hole 9 correspond to the limiting structure on the assembly 6. The limiting structure is used to limit the position of the two ends of the compression spring.

[0065] like Figures 1-2 As shown, the first linear drive mechanism 2 is fixedly installed at the assembly station via the first bracket 21, and the second linear drive mechanism 8 is fixedly installed at the assembly station via the second bracket 81.

[0066] like Figures 1-5 As shown, the working process of the automatic compression spring installation device in this embodiment is as follows:

[0067] Place the assembly 6 containing the compression spring to be installed at the assembly station. The placement of the assembly 6 and the related positioning structure are not shown in the attached drawings. This part of the structure is a conventional design, as long as it meets the positioning and placement requirements of the assembly 6.

[0068] The first linear drive mechanism 2 drives the feeding mechanism 4 to move as a whole, so that the discharge pipe 48 is inserted into the process through hole 62 from one end. The second linear drive mechanism 8 drives the limiting rod 7 to move, so that the limiting rod 7 is inserted into the process through hole 62 from the other end. The end of the discharge pipe 48 and the end of the limiting rod 7 form a discharge through hole 9 in the process through hole 62. The axial direction of the discharge through hole 9 is perpendicular to the moving direction of the limiting rod 7.

[0069] Spring 1 enters the feeding mechanism 4 through the feed port 454. After being compressed by the feeding mechanism 4, spring 1 is sent out through the discharge pipe 48 and enters the discharge through hole 9. Spring 1 rebounds in the discharge through hole 9. After the two ends of spring 1 pop out from the two ends of the discharge through hole 9, they cooperate with the limiting structure on the assembly 6, thus completing the assembly of the compression spring in the assembly 6.

[0070] The first linear drive mechanism 2 drives the feeding mechanism 4 to move in the opposite direction as a whole, and the second linear drive mechanism 8 drives the limit rod 7 to move in the opposite direction, so that the discharge pipe 48 and the limit rod 7 are moved out of the process through hole 62. Then the assembly 6 with the compression spring assembled is removed, and the above steps are repeated.

[0071] The spring component 1 is automatically compressed and conveyed by the feeding mechanism 4. The linear drive mechanism drives the discharge pipe 48 of the feeding mechanism 4 and the limiting rod 7 to extend into the process through hole 62 of the assembly 6 to form the discharge through hole 9. After the compressed spring component 1 is sent out from the discharge pipe 48, it can be limited by the limiting structure on the assembly 6, thus completing the automatic installation of the compressed spring on the assembly 6, realizing the automatic assembly of the compressed spring, reducing labor intensity and improving assembly efficiency.

[0072] Example 2:

[0073] Based on Example 1, such as Figures 3-8 As shown, the feeding mechanism 4 in this embodiment has a structure including a third linear drive mechanism 41, a fourth linear drive mechanism 42 and a fifth linear drive mechanism 46, which are fixedly mounted on the substrate 3.

[0074] The first feeding rod 43 is fixedly installed on the movable part of the third linear drive mechanism 41;

[0075] The second feed rod 44 is fixedly installed on the movable part of the fourth linear drive mechanism 42;

[0076] A pressure rod 47 is fixedly installed on the movable part of the fifth linear drive mechanism 46;

[0077] A busbar 45 is also fixedly mounted on the substrate 3. The busbar 45 is provided with a first channel 452, a second channel 457 and a third channel 456. The ends of the first channel 452 and the third channel 456 intersect and connect with the middle of the second channel 457 to form a junction cavity. The feed inlet 454 is connected to the middle of the first channel 452. A discharge pipe 48 is installed on the outside of the busbar 45. The discharge pipe 48 is coaxial with the second channel 457.

[0078] The first feeding rod 43 moves within the first channel 452 to convey the spring component 1 to the junction cavity. The pressure rod 47 moves within the third channel 456 to compress the spring component 1 into a compression spring within the junction cavity. The second feeding rod 44 moves within the second channel 457 to convey the compression spring, so that the compression spring enters the discharge through hole 9 after passing through the discharge pipe 48.

[0079] The moving directions of the first feeding rod 43, the second feeding rod 44, and the pressure rod 47 are perpendicular to each other.

[0080] The fifth linear drive mechanism 46 and the pressure rod 47 are connected by a floating joint 461 to ensure the coaxiality of the third channel 456 and the pressure rod 47.

[0081] There are various ways to process the busbar 45, such as Figures 7-8 As shown, one type of manifold 45 includes a block body 451, and a first channel 452, a second channel 457, a third channel 456 and a feed port 454 are all formed on the block body 451 by machining. The first channel 452 penetrates the block body 451 and a baffle 455 is installed at the end.

[0082] Furthermore, such as Figure 3 , Figure 4 As shown, the end of the first feeding rod 43 is provided with a sleeve 432 corresponding to the feed port 454. The diameter of the sleeve 432 matches the outer diameter of the spring member 1. One end of the sleeve 432 is provided with a through hole 431, which corresponds to the second channel 457 and matches the cross-sectional dimensions of the second feeding rod 44.

[0083] The end of the first feeding rod 43 is provided with a sleeve 432. The sleeve 432 is located below the feed port 454 and is used to catch the spring 1 and limit the spring 1 to prevent the spring 1 from tilting in the first channel 452. It also ensures that the spring 1 in the confluence cavity plays a guiding and limiting role when it is compressed by the pressure rod 47.

[0084] Furthermore, such as Figure 3 The end of the second feeding rod 44 is an arc surface 441 that matches the circumference of the compression spring, and the end of the discharge pipe 48 is provided with an arc-shaped notch 481 corresponding to the arc surface 441.

[0085] This ensures that the compression spring moves stably within the second channel 457 and rebounds smoothly within the discharge through-hole 9.

[0086] The end of the compression bar 47 is flat, and the cross-section of the compression bar 47 can be square.

[0087] Furthermore, such as Figure 3 , Figure 4 As shown, a sensor 453 is provided on the busbar 45. The sensor 453 is used to detect the spring 1 entering the first channel 452.

[0088] Sensor 453 can be a photoelectric sensor or a proximity switch.

[0089] In this embodiment of the automatic compression spring installation equipment, the feeding mechanism 4 compresses the spring 1 and then sends it out from the discharge pipe 48 as follows:

[0090] In the initial state, the sleeve 432 at the end of the first feeding rod 43 is located below the feed port 454, and the spring 1 enters the sleeve 432 from the feed port 454. At this time, the feeding mechanism 4 starts to work.

[0091] The third linear drive mechanism 41 drives the first feeding rod 43 to move, pushing the spring 1 into the confluence cavity. The fifth linear drive mechanism 46 drives the pressure rod 47 to move downward, compressing the spring 1 in the sleeve 432 until its height is less than or equal to the height of the through hole 431 and matches the cross-sectional dimensions of the second channel 457.

[0092] The fourth linear drive mechanism 42 drives the second feeding rod 44 to move. The arc surface 441 at the end of the second feeding rod 44 pushes the compression spring to move in the second channel 457 until it moves to the end of the discharge pipe 48 and enters the discharge through hole 9, and is installed on the assembly 6.

[0093] Then, the fifth linear drive mechanism 46 drives the pressure rod 47 to reset, the fourth linear drive mechanism 42 drives the second feeding rod 44 to reset, and the third linear drive mechanism 41 drives the first feeding rod 43 to reset.

[0094] A spring component 1 is then fed back into the first channel 452, awaiting the next assembly process.

[0095] Furthermore, such as Figure 3 , Figure 4 As shown, both the third linear drive mechanism 41 and the fourth linear drive mechanism 42 are slide cylinders.

[0096] Furthermore, such as Figure 1 , Figure 2 As shown, both the first linear drive mechanism 2 and the second linear drive mechanism 8 are slide cylinders.

[0097] Using a slide cylinder as a linear drive mechanism, it integrates guide rails, cylinders, and limit functions, which greatly saves installation space and improves the accuracy of the equipment.

[0098] Furthermore, such as Figure 1 , Figure 2 As shown, it also includes a feeding pipe 5 connected to the feed inlet 454. One end of the feeding pipe 5 is connected to the feed inlet 454, and the other end of the feeding pipe 5 is connected to the spring component 1 conveyor line, guiding the spring component 1 into the feed inlet 454.

[0099] Example 3:

[0100] In this embodiment, as Figures 1-4 As shown, Figure 9 , Figure 10 As shown, spring 1 is a cylindrical spring. Assembly 6 is a door closer, which includes a frame 63. A latch bracket 61 is mounted on the frame 63. A compression spring needs to be installed between the middle of the latch bracket 61 and the frame 63 to connect the latch bracket 61 and the frame 63. A process through hole 62 is provided on the frame 63, which corresponds to the compression spring.

[0101] The door closer has a conventional structure, specifically an electromagnetic door closer, such as... Figure 9 , Figure 10 As shown, an electromagnet 65 is installed on the frame 63, and a shaft is provided on the electromagnet 65. The electromagnet 65 drives the shaft to move. A limit piece 64 is hinged on the frame 63. The limit piece 64 is fastened to one end of the lock tongue frame 61. The shaft connects to the limit piece 64 and drives the limit piece 64 to swing, so as to realize the fastening and unfastening of the limit piece 64 and the lock tongue frame 61.

[0102] Before placing the assembly 6 containing the compression spring to be installed at the assembly station, release the latch 61 from the locking plate 64, so that the latch 61 is in a raised state, avoiding the process through hole 62, so that the second feeding rod 44 and the limiting rod 7 can extend into the process through hole 62, forming a discharge through hole 9 between the latch 61 and the frame 63. The discharge through hole 9 is a cylindrical hole that matches the outer circumferential surface of the cylindrical spring.

[0103] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An automatic compression spring installation device, characterized in that: include, The first linear drive mechanism (2) is fixedly installed on one side of the assembly (6) on which the compression spring is to be installed; The substrate (3) is fixedly mounted on the moving part of the first linear drive mechanism (2); The feeding mechanism (4) is fixedly installed on the substrate (3). The feeding mechanism (4) is provided with a discharge pipe (48) and a feed port (454) for receiving the spring (1). The feeding mechanism (4) compresses the spring (1) to form the compression spring and sends the compression spring out from the discharge pipe (48). The second linear drive mechanism (8) is fixedly disposed on the other side of the assembly (6); The limiting rod (7) is fixedly installed on the moving part of the second linear drive mechanism (8); The discharge pipe (48) and the limiting rod (7) are respectively inserted into the process through hole (62) of the assembly (6) under the drive of the first linear drive mechanism (2) and the second linear drive mechanism (8). The end of the discharge pipe (48) and the end of the limiting rod (7) are connected in the process through hole (62) to form a discharge through hole (9). The two ends of the discharge through hole (9) correspond to the limiting structure on the assembly (6). The limiting structure is used to limit the position of the two ends of the compression spring.

2. The automatic compression spring installation device as described in claim 1, characterized in that: The feeding mechanism (4) is structured as follows: it includes a third linear drive mechanism (41), a fourth linear drive mechanism (42) and a fifth linear drive mechanism (46) fixedly mounted on the substrate (3); The first feeding rod (43) is fixedly installed on the movable part of the third linear drive mechanism (41); The second feeding rod (44) is fixedly installed on the movable part of the fourth linear drive mechanism (42); A pressure rod (47) is fixedly installed on the movable part of the fifth linear drive mechanism (46); A manifold (45) is also fixedly installed on the substrate (3). The manifold (45) is provided with a first channel (452), a second channel (457) and a third channel (456). The ends of the first channel (452) and the third channel (456) intersect and connect with the middle of the second channel (457) to form a confluence cavity. The inlet (454) is connected to the middle of the first channel (452). The outlet pipe (48) is installed on the outside of the manifold (45). The outlet pipe (48) is coaxial with the second channel (457). The first feeding rod (43) moves within the first channel (452) to convey the spring (1) to the junction cavity. The pressure rod (47) moves within the third channel (456) to compress the spring (1) into a compression spring within the junction cavity. The second feeding rod (44) moves within the second channel (457) to convey the compression spring, so that the compression spring enters the discharge through hole (9) after passing through the discharge pipe (48).

3. The automatic compression spring installation device as described in claim 2, characterized in that: The end of the first feeding rod (43) is provided with a sleeve (432) corresponding to the feed port (454). The diameter of the sleeve (432) matches the outer diameter of the spring (1). One end of the sleeve (432) is provided with a through hole (431). The through hole (431) corresponds to the second channel (457) and matches the cross-sectional size of the second feeding rod (44).

4. The automatic compression spring installation device as described in claim 2, characterized in that: The end of the second feeding rod (44) is an arc surface (441) that matches the circumference of the compression spring, and the end of the discharge tube (48) is provided with an arc-shaped notch (481) corresponding to the arc surface (441).

5. The automatic compression spring installation device as described in claim 2, characterized in that: A sensor (453) is provided on the busbar (45), and the sensor (453) is used to detect the spring (1) entering the first channel (452).

6. The automatic compression spring installation device as described in claim 2, characterized in that: Both the third linear drive mechanism (41) and the fourth linear drive mechanism (42) are slide cylinders.

7. The automatic compression spring installation device as described in claim 1, characterized in that: It also includes a feed pipe (5) connected to the feed inlet (454).

8. The automatic compression spring installation device as described in claim 1, characterized in that: Both the first linear drive mechanism (2) and the second linear drive mechanism (8) are slide cylinders.

9. The automatic compression spring installation device as described in claim 1, characterized in that: The spring element (1) is a cylindrical spring.

10. The automatic compression spring installation device as described in claim 1, characterized in that: The assembly (6) is a door closer, which includes a frame (63). A latch bracket (61) is installed on the frame (63). A compression spring needs to be installed between the middle of the latch bracket (61) and the frame (63) to connect the latch bracket (61) and the frame (63). The frame (63) is provided with a process through hole (62), which corresponds to the compression spring.

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