Armature assembly pressing tool

Abstract

The utility model relates to armature processing technical field especially a kind of armature assembly press fit tool, including base, the base is located in bottom cavity and is equipped with jacking structure, the jacking structure includes top piece, the top piece sliding connection is in the top of base, for receiving spring tube;Wherein, the top of base is located in the both sides cover of top piece and is equipped with positioning sleeve, two the positioning sleeve is used for positioning armature plate;It is also sleeved with fixed sleeve outside two positioning sleeves, the fixed sleeve cooperation jacking structure drives the top piece jacking, in the utility model, top piece cooperation two positioning sleeves are positioned spring tube and armature piece respectively, fixed sleeve is used for fixing two positioning sleeves to prevent separation during press fit process, and fixed sleeve and pressure rod are pressed during press fit process, cooperate connecting piece to drive top piece to lift together with spring tube, ensure that spring tube can be compressed enough in the case of sufficient and fully press fit with armature plate.

Description

Technical Field

[0001] This utility model relates to the field of armature processing technology, and in particular to an armature assembly pressing tool. Background Technology

[0002] The armature is a key moving component in an electromagnet or relay. It does not generate magnetism itself, but it is attracted by the magnetic field generated by the electromagnet, thereby realizing mechanical movement. Through reciprocating motion, the armature realizes various industrial automation functions, from circuit control to fluid switching, and is used in equipment braking to material handling.

[0003] The armature assembly consists of an armature plate (low-carbon steel or pure iron sheet) and a return spring (one end fixed to the armature and the other end fixed to the bracket). The two are fixed by pressing, i.e., interference fit. For example, the prior art Chinese patent announcement number "CN223339228U" discloses an armature assembly pressing tooling, which relates to the field of pressing tooling. It includes a tubular fixing seat, on which a columnar support rod is provided. The diameter of the columnar support rod is smaller than the diameter of the spring tube to be processed. It also includes a clamping fixing sleeve, which is sleeved outside the tubular fixing seat. The clamping fixing sleeve has a spring tube limiting hole reserved on it. The diameter of the spring tube limiting hole is larger than the diameter of the spring tube to be processed. The columnar support rod carrying the spring tube to be processed can pass through the spring tube limiting hole. The clamping fixing sleeve is provided with multiple positioning pins, and a clamping position for fixing the armature assembly is formed between adjacent positioning pins. This solves the problem in existing technologies where spring tubes are easily affected by external forces during the pressing process, resulting in local deformation or even breakage.

[0004] In actual operation, the spring tube is fixed to the columnar support rod and limited in the spring tube limiting hole. However, considering that the spring tube itself has compression capacity, the pressing method of only driving the latching assembly to move down may result in poor pressing due to the fixed position of the spring tube and insufficient compression. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where short spring tubes are prone to poor pressing with the armature assembly, and to propose a pressing tool for armature assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design an armature assembly pressing tooling, including a base, the base having a lifting structure located in the bottom cavity, the lifting structure including a top member, the top member being slidably connected to the top of the base for receiving a spring tube;

[0008] The base is provided with positioning sleeves on both sides of the top member, and the two positioning sleeves are used to position the armature plate.

[0009] A fixing sleeve is also provided around the two positioning sleeves, and the fixing sleeve works with the lifting structure to drive the top component to lift.

[0010] Furthermore, the base has a positioning part at the top midpoint, and the two positioning sleeves are arranged in half and are covered around the conveying positioning part by closing. The two positioning sleeves are also provided with positioning grooves that are adapted to the positioning part on the bottom side.

[0011] Furthermore, the top of the top piece is provided with a stepped portion, and the top of the two positioning sleeves is provided with positioning holes concentric with the top piece. The two ends of the spring tube are respectively sleeved around the stepped portion and limited within the positioning holes.

[0012] Among them, the two positioning sleeves are fixedly connected to two corresponding positioning pins at the top, the armature plate is limited in the positioning pins, and the protruding part at the bottom of the armature plate is engaged in the positioning hole.

[0013] Furthermore, the lifting structure also includes a pressure rod, which is slidably connected to the inner top of the base. Both the pressure rod and the bottom of the top member are provided with sliding grooves, and the two sliding grooves form an inverted V-shaped structure.

[0014] Furthermore, it also includes a connector, the two ends of which are slidably connected to the inner and outer peripheries of the pressure rod and the top member, respectively, and the two ends of the connector are fixedly connected to rods, which are slidably connected in the groove.

[0015] Furthermore, the base is threadedly connected to an end cap at the bottom, and a compression spring is connected between the end cap and the pressure rod.

[0016] Furthermore, the fixing sleeve has a cylindrical structure, with its top flush with the conveying positioning sleeve and its bottom pressing against the pressure rod.

[0017] The present invention provides a pressing fixture for an armature assembly, which has the following advantages: In this invention, the top piece, together with two positioning sleeves, positions the spring tube and the armature plate respectively. The fixing sleeve is used to fix the two positioning sleeves to prevent separation during the pressing process. During the pressing process, the fixing sleeve and the pressure rod press against each other. Together with the connecting piece, the top piece and the spring tube are driven to lift, ensuring that the spring tube can be fully pressed with the armature plate under sufficient compression, preventing poor pressing due to small pressure. After long-term use, the end cover can be unlocked to disassemble and maintain the lifting structure. The structure is simple and highly practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a plan view of the lifting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the lifting structure of this utility model.

[0022] In the diagram: 1. Base; 11. Positioning part; 2. Lifting structure; 21. Top piece; 22. Stepped part; 23. Pressure rod; 24. Slide groove; 25. Connecting piece; 26. Rod; 27. Compression spring; 3. Bourdon tube; 4. Positioning sleeve; 41. Positioning groove; 42. Positioning hole; 43. Positioning pin; 5. Armature plate; 6. Fixing sleeve; 7. End cap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A pressing fixture for an armature assembly includes a base 1. The base 1 has a lifting structure 2 located in the bottom cavity. The lifting structure 2 includes a top member 21, which is slidably connected to the top of the base 1 and is used to support the spring tube 3.

[0025] The top of the base 1 is covered with positioning sleeves 4 on both sides of the top piece 21, and the two positioning sleeves 4 are used to position the armature plate 5.

[0026] A fixing sleeve 6 is also fitted around the two positioning sleeves 4. The fixing sleeve 6 works with the lifting structure 2 to drive the top piece 21 to lift.

[0027] In some embodiments, the spring tube 3 and the armature plate 5 can be pressed together by a pressing device such as a hydraulic or pneumatic mechanism to drive the pressing component to lift and lower. The spring tube 3 and the armature plate 5 are usually fixed together by an interference fit under the pressing action.

[0028] In this embodiment, the fixing sleeve 6 is pre-fitted around the two positioning sleeves 4. The bottom of the fixing sleeve 6 abuts against the pressure rod 23. The pressure member presses against the fixing sleeve 6 to drive it downward. While the fixing sleeve 6 moves downward, it further tightens the two positioning sleeves 4 to ensure stable connection between the armature plate 5 and the spring tube 3.

[0029] Furthermore, the bottom of the fixed sleeve 6 will press against the pressure rod 23. The pressure rod 23 moves down under pressure and, together with the lifting structure 2, drives the top piece 21 and the spring tube 3 to rise. When the spring tube 3 contacts the protruding part at the bottom of the armature plate 5, it will be interference-fitted with the armature plate 5 as the compression gradually increases.

[0030] Furthermore, the base 1 has a positioning part 11 at the top center, and two positioning sleeves 4 are arranged in half and are covered around the conveying positioning part 11 by closing. The two positioning sleeves 4 are also provided with positioning grooves 41 that are adapted to the positioning part 11 on the bottom side.

[0031] In actual operation, two positioning sleeves 4 are used to position the armature plate 5. The positioning part 11 and the positioning groove 41 are used to circumferentially lock the two closed positioning sleeves 4 to prevent the armature plate 5 from rotating during the pressing process and affecting the pressing effect.

[0032] Furthermore, the top of the top piece 21 is provided with a stepped portion 22, and the top of the two positioning sleeves 4 is provided with positioning holes 42 concentric with the top piece 21. The two ends of the spring tube 3 are respectively sleeved around the stepped portion 22 and limited within the positioning holes 42.

[0033] Among them, two positioning sleeves 4 are located at the top and are fixedly connected to two corresponding positioning pins 43. The armature plate 5 is limited within the positioning pins 43, and the protruding part at the bottom of the armature plate 5 is engaged in the positioning hole 42.

[0034] like Figure 2 As shown, the spring tube 3 is sleeved around the periphery of the stepped section 22 and is limited within the positioning hole 42 to ensure that the spring tube 3 will not move or shift due to compression when the top member 21 drives it to rise.

[0035] It is worth mentioning that the diameter of the stepped section 22 is slightly smaller than that of the spring tube 3, while the diameter of the positioning hole 42 is slightly larger than that of the spring tube 3. Furthermore, due to the sliding connection between the top part 21 and the base 1, the lifting structure 2, the positioning sleeve 4, and the fixing sleeve 6 can be replaced according to the actual size of the pressed spring tube 3.

[0036] More specifically, the lifting structure 2 also includes a pressure rod 23, which is slidably connected to the inner top of the base 1. Both the pressure rod 23 and the bottom of the top piece 21 are provided with sliding grooves 24. The two sliding grooves 24 form an inverted V-shaped structure. (See attached image for details.) Figure 3 .

[0037] In general, it also includes a connector 25, with both ends of the connector 25 slidably connected to the inner and outer sides of the pressure rod 23 and the top member 21, respectively. Both ends of the connector 25 are fixedly connected to rods 26, which are slidably connected in the groove 24.

[0038] Additionally, the base 1 is threadedly connected to the end cap 7 at the bottom, and a compression spring 27 is connected between the end cap 7 and the pressure rod 23.

[0039] Finally, the fixed sleeve 6 has a cylindrical structure, with its top flush with the conveying positioning sleeve 4 and its bottom pressing rod 23.

[0040] In this embodiment, as Figure 3 The top piece 21 and the pressure rod 23 are both limited within the base 1, and the two are connected and transmitted through the connector 25;

[0041] In specific operation, the pressure rod 23 moves downward under pressure, and at the same time, it drives the connecting piece 25 to move towards the side of the pressure rod 23 through its own sliding groove 24 in conjunction with the rod 26. At the same time, the connecting piece 25, under the action of its own rod 26, in conjunction with another sliding groove 24, drives the top piece 21 to rise, thereby driving the spring tube 3 to rise.

[0042] When the pressure rod 23 is released, it is synchronously reset under the action of the pressure spring 27 and the connecting piece 25 drives the top piece 21.

[0043] Working method: The spring tube 3 is sleeved on the outer periphery of the stepped part 22. After the two positioning sleeves 4 are closed on the outer periphery of the top part 21, the top end of the spring tube 3 and the protruding part of the armature plate 5 are limited by the positioning hole 42. The fixing sleeve 6 is preset on the outer periphery of the two positioning sleeves 4. Then the top of the positioning sleeve 4 is limited by the positioning pin 43 to the armature plate 5.

[0044] Then, the pressing device presses against the fixed sleeve 6 to drive it to move down. While the fixed sleeve 6 tightens the two positioning sleeves 4, its bottom presses against the pressure rod 23. The pressure rod 23 moves down under pressure. While moving down, it cooperates with the connecting piece 25, the sliding grooves on both sides 24 and the rod 26 to drive the top piece 21 together with the spring tube 3 to rise.

[0045] The spring tube 3, under the action of the positioning hole 42, docks with the protruding part of the armature plate 5, and as the compression gradually increases, it eventually completes an interference fit with the armature plate 5.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling for pressing armature components, comprising a base (1), characterized in that: The base (1) is provided with a lifting structure (2) in the bottom cavity. The lifting structure (2) includes a top piece (21), which is slidably connected to the top of the base (1) and is used to support the spring tube (3). The base (1) is provided with positioning sleeves (4) on both sides of the top piece (21), and the two positioning sleeves (4) are used to position the armature plate (5). A fixing sleeve (6) is also provided around the two positioning sleeves (4), and the fixing sleeve (6) works with the lifting structure (2) to drive the top piece (21) to lift.

2. The armature assembly pressing fixture according to claim 1, characterized in that: The base (1) has a positioning part (11) at the top center. The two positioning sleeves (4) are arranged in half and are covered around the conveying positioning part (11) by closing. The two positioning sleeves (4) are also provided with positioning grooves (41) that are adapted to the positioning part (11) on the bottom side.

3. The armature assembly pressing fixture according to claim 1, characterized in that: The top part (21) has a stepped part (22) at its top end, and the top of the two positioning sleeves (4) has a positioning hole (42) concentric with the top part (21). The two ends of the spring tube (3) are respectively sleeved around the stepped part (22) and limited in the positioning hole (42). Among them, the two positioning sleeves (4) are fixedly connected to two corresponding positioning pins (43) at the top, the armature plate (5) is limited in the positioning pins (43), and the protruding part at the bottom of the armature plate (5) is engaged in the positioning hole (42).

4. The armature assembly pressing fixture according to claim 3, characterized in that: The lifting structure (2) also includes a pressure rod (23), which is slidably connected to the inner top of the base (1). The bottom ends of the pressure rod (23) and the top piece (21) are provided with grooves (24), and the two grooves (24) are in an inverted V-shaped structure.

5. The armature assembly pressing fixture according to claim 4, characterized in that: It also includes a connector (25), the two ends of which are slidably connected to the inner and outer peripheries of the pressure rod (23) and the top member (21), respectively. The two ends of the connector (25) are fixedly connected to rods (26), and the rods (26) are slidably connected in the groove (24).

6. The armature assembly pressing fixture according to claim 5, characterized in that: The base (1) is threadedly connected to an end cap (7) at the bottom, and a compression spring (27) is connected between the end cap (7) and the pressure rod (23).

7. The armature assembly pressing tooling according to claim 4, characterized in that: The fixing sleeve (6) has a cylindrical structure, with its top flush with the conveying positioning sleeve (4) and its bottom pressing against the pressure rod (23).

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