A base spring automatic press-fitting equipment

Abstract

The utility model discloses a base spring automatic press -mounting equipment belongs to automatic equipment technical field. The equipment includes work piece positioning frock, pin shaft press -mounting device and spring positioning press -mounting device. Among them, the spring installation pressure head lower end of spring positioning press -mounting device sets up the arc spring limit slot and end limit step of adapting with spring shape, and through the magnetic attraction part adsorbs the spring, and the oil sprayer realizes accurate oil injection through the oil injection pipeline and oil injection port in the pressure head. When the equipment works, the spring installation pressure head presses down the pre -installed spring, and the pin shaft press -mounting device is completed. The utility model solves the problem of laborious press -mounting and oil injection pollution, realizes the automatic accurate assembly of spring.

Description

Technical Field

[0001] This utility model applies to the field of automation equipment technology and provides an automatic pressing device for base springs. Background Technology

[0002] Torsion springs utilize the lever principle, generating significant mechanical energy through the twisting or rotation of a soft yet resilient elastic material. They are springs designed to withstand torsional deformation. The end structure of a torsion spring is a torsion arm machined into various shapes. In many products, torsion springs are frequently installed in structures requiring a resilient reset switch. In such structures, the torsion spring and the workpiece are typically connected by a pin. During assembly, the torsion spring is usually manually compressed to a certain degree, then the pin is inserted from the side for connection, and finally the torsion spring is released. After the spring's torsional force is released, the inner side of its coil abuts against the side of the shaft pin, thus achieving installation. However, because it involves manual pressing, the operator's operation is very laborious, resulting in low assembly efficiency. In order to reduce friction interference and abnormal noise between the spring and the shaft pin during use, it is necessary to spray oil on the spring. However, under manual operation, spraying oil before assembly makes the spring difficult to grip and contaminates the operator's hands, which in turn contaminates other products. Spraying oil after assembly, on the other hand, makes it easy for the oil to spray onto other workpieces, which also contaminates other workpieces. Utility Model Content

[0003] Therefore, this utility model provides an automatic pressing device for base springs, which installs springs by using a magnetic spring mounting head, simulates manual pressing by pressing down with the spring mounting head, and performs pin pressing by using a pin pressing rod, thus avoiding the problem of laborious manual operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic pressing device for base springs, wherein the spring workpiece includes a spring coil segment, and a first torsion arm and a second torsion arm are respectively provided at both ends of the spring coil segment; the automatic pressing device for springs includes:

[0005] A workpiece positioning fixture, used to place the workpiece to be assembled;

[0006] A pin press-fitting device is provided on one side of a workpiece positioning fixture, and includes a pin press rod that can move toward the side of the workpiece positioning fixture.

[0007] A spring positioning and pressing device includes a spring pressing head driving mechanism and a spring mounting pressing head. The spring pressing head driving mechanism can drive the spring mounting pressing head to move up and down. The lower end face of the spring mounting pressing head is provided with an arc-shaped spring limiting groove adapted to the spring coil segment. The left and right ends of the arc-shaped spring limiting groove are respectively provided with a first end limiting step adapted to the first torsion arm and a second end limiting step adapted to the second torsion arm.

[0008] Furthermore, the spring mounting head is provided with a magnetic suction part at the position of the arc-shaped spring limiting groove.

[0009] Furthermore, it also includes an injector, and the spring mounting head is provided with an injection pipe. One end of the injection pipe is connected to the injector, and the inner side wall of the arc-shaped spring limiting groove is provided with several spring injection ports that are connected to the injection pipe.

[0010] Furthermore, the spring positioning and pressing device also includes a workpiece pressing head driving mechanism and a workpiece limiting pressing head, wherein the workpiece pressing head driving mechanism is used to drive the workpiece limiting pressing head to move up and down.

[0011] Furthermore, it also includes a pin abutment device, which is located on the side of the workpiece positioning fixture away from the pin pressing device, and includes a pin abutment rod that can move toward the side of the workpiece positioning fixture.

[0012] Furthermore, both the spring pressure head drive mechanism and the workpiece pressure head drive mechanism are pneumatic push rods or electric push rods, and both the pin pressure rod and the pin stop rod are driven by pneumatic push rods or electric push rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In the present invention, a spring to be assembled is loaded by a spring mounting head with magnetic attraction. At the same time, the arc-shaped spring limiting groove, the first end limiting step and the second end limiting step are perfectly matched with each part of the spring to be assembled, so that the spring workpiece can be pre-installed by pressing down the spring mounting head instead of the manual pressing method, which saves effort.

[0015] 2. The spring is automatically and precisely sprayed with oil through several spring oil nozzles at the bottom of the arc-shaped spring limiting groove, avoiding oil contamination. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an automatic base spring pressing device mentioned in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an automatic spring pressing device for base springs mentioned in the embodiment during spring pressing;

[0018] Figure 3 This is a schematic diagram of the spring positioning and pressing device mentioned in this utility model;

[0019] Figure 4 This is an exploded structural diagram of the spring mounting head mentioned in this utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the structure when the spring is installed below the spring mounting head.

[0021] In the picture:

[0022] 100. Workpiece positioning fixture;

[0023] 200. Spring positioning and pressing device; 210. Spring pressure head drive mechanism; 220. Spring mounting pressure head; 221. Arc-shaped spring limiting groove; 222. First end limiting step; 223. Second end limiting step; 224. Spring oil nozzle; 225. Oil injection pipe; 230. Workpiece pressure head drive mechanism; 240. Workpiece limiting pressure head.

[0024] 300. Pin press-fitting device;

[0025] 400. Shaft pin abutment device;

[0026] 500. Injector;

[0027] 600, Spring workpiece; 610, Spring coil segment; 620, First torsion arm; 630, Second torsion arm. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] Example, see attached document Figure 1 Appendix Figure 2 The present invention provides an automatic spring pressing device for a base. The spring workpiece 600 includes a spring coil segment 610, with a first torsion arm 620 and a second torsion arm 630 respectively provided at both ends of the spring coil segment 610. The automatic spring pressing device includes a workpiece positioning fixture 100 for placing the workpiece to be assembled, a spring positioning pressing device 200 provided above the workpiece positioning fixture 100, and pin pressing devices 300 and pin abutment devices 400 respectively provided on the left and right sides of the workpiece positioning fixture 100. (See attached diagram) Figure 3As shown, the spring positioning and pressing device 200 includes a spring pressure head drive mechanism 210, a spring mounting pressure head 220, a workpiece pressure head drive mechanism 230, and a workpiece limiting pressure head 240. Both the spring pressure head drive mechanism 210 and the workpiece pressure head drive mechanism 230 are pneumatic or electric push rods. The spring pressure head drive mechanism 210 drives the spring mounting pressure head 220 to move up and down, and the workpiece pressure head drive mechanism 230 drives the workpiece limiting pressure head 240 to move up and down. (See attached diagram.) Figure 4 As shown, the lower end face of the spring mounting head 220 is provided with an arc-shaped spring limiting groove 221 adapted to the spring coil section 610. The left and right ends of the arc-shaped spring limiting groove 221 are respectively provided with a first end limiting step 222 adapted to the first torsion arm 620 and a second end limiting step 223 adapted to the second torsion arm 630. The spring mounting head 220 is provided with a magnetic attraction part located at the position of the arc-shaped spring limiting groove 221, allowing the spring workpiece 600 to be assembled to be attracted magnetically as shown in the attached diagram. Figure 5 The spring coil segment 610 of the spring workpiece 600 to be assembled fits snugly against the side of the arc-shaped spring limiting groove 221. The first torsion arm 620 and the second torsion arm 630 at the left and right ends respectively rest on the first end limiting step 222 and the second end limiting step 223, thus forming a precise positioning that is not easy to detach. The pin pressing device 300 includes a pin pressing rod that can move toward the side of the workpiece positioning fixture 100. The pin abutment device 400 is located on the side of the workpiece positioning fixture 100 away from the pin pressing device 300 and includes a pin abutment that can move toward the side of the workpiece positioning fixture 100. Both the pin pressing rod and the pin abutment are driven by a pneumatic push rod or an electric push rod. When performing pin pressing, as shown in the attached Figure 2 As shown, the workpiece limiting pressure head 240 first presses down on the workpiece to be assembled to fix it. Then, the spring mounting pressure head 220 loads the spring workpiece 600 and presses it down into the predetermined position inside the workpiece to be assembled. After that, the pin pressure rod presses the pin from the side of the pin pressing device 300 into the workpiece to be assembled and the spring workpiece 600. Finally, the end of the pin protrudes to the side of the pin abutment device 400. During the pin pressing process, the end of the pin abutment moves to the final predetermined stopping position of the pin end. This structure is mainly to prevent the pin pressure rod from being over-pressed and causing damage to the workpiece. After the pin installation is completed, the pin pressure rod, pin abutment, workpiece limiting pressure head 240 and spring mounting pressure head 220 return to their original positions, and the entire spring workpiece 600 pressing process is completed.

[0030] In one embodiment, the automatic pressing equipment for the base spring also includes an oil injector 500. The spring mounting head 220 is provided with an oil injection pipe 225. One end of the oil injection pipe 225 is connected to the oil injector 500. The inner side wall of the arc-shaped spring limiting groove 221 is provided with several spring oil injection ports 224 that are connected to the oil injection pipe 225. During the pressing or pressing process of the spring workpiece 600, the spring oil injection ports 224 can uniformly spray oil onto the surface of the spring workpiece 600.

[0031] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] The above are merely preferred embodiments of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An automatic pressing device for a base spring, wherein the spring comprises a spring coil segment, and a first torsion arm and a second torsion arm are respectively provided at both ends of the spring coil segment, characterized in that, The automatic spring pressing equipment includes: A workpiece positioning fixture, used to place the workpiece to be assembled; A pin press-fitting device is provided on one side of a workpiece positioning fixture, and includes a pin press rod that can move toward the side of the workpiece positioning fixture. A spring positioning and pressing device includes a spring pressing head driving mechanism and a spring mounting pressing head. The spring pressing head driving mechanism can drive the spring mounting pressing head to move up and down. The lower end face of the spring mounting pressing head is provided with an arc-shaped spring limiting groove adapted to the spring coil segment. The left and right ends of the arc-shaped spring limiting groove are respectively provided with a first end limiting step adapted to the first torsion arm and a second end limiting step adapted to the second torsion arm.

2. The automatic pressing device for base springs according to claim 1, characterized in that: The spring mounting head is equipped with a magnetic suction part located at the position of the arc-shaped spring limiting groove.

3. The automatic pressing device for base springs according to claim 2, characterized in that: It also includes an injector, and the spring mounting head is provided with an injection pipe. One end of the injection pipe is connected to the injector. The inner side wall of the arc-shaped spring limiting groove is provided with several spring injection ports that are connected to the injection pipe.

4. The automatic pressing device for base springs according to claim 3, characterized in that: The spring positioning and pressing device also includes a workpiece pressing head driving mechanism and a workpiece limiting pressing head. The workpiece pressing head driving mechanism is used to drive the workpiece limiting pressing head to move up and down.

5. An automatic pressing device for base springs according to any one of claims 1 to 4, characterized in that: It also includes a pin abutment device, which is located on the side of the workpiece positioning fixture away from the pin pressing device, and includes a pin abutment rod that can move toward the side of the workpiece positioning fixture.

6. The automatic pressing device for base springs according to claim 5, characterized in that: Both the spring pressure head drive mechanism and the workpiece pressure head drive mechanism are pneumatic push rods or electric push rods, and both the pin pressure rod and the pin stop rod are driven by pneumatic push rods or electric push rods.

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