Spring pressing and combining tool

Abstract

The utility model provides a spring pressing and combining tool. The spring pressing and combining tool comprises a bottom plate. A cover plate; the hexagon bolt comprises a screw rod, threads are arranged on the outer surface of the upper portion of the screw rod, and the screw rod penetrates through the bottom plate and the cover plate. The cushion block is embedded in the screw rod in a sleeving manner; the bottom of the mandrel is connected to the bottom plate through interference fit, and the upper portion of the mandrel penetrates through the cover plate; the nut is nested in the upper part of the screw rod and is positioned on the upper surface of the cover plate; the required pressing height of the spring can be realized through one-time pressing, the service life of the spring is prolonged, the springs with different inner diameters can be pressed only by replacing the core shaft and the cover plate, the investment of a bottom plate, a hexagon bolt and the like is reduced compared with the conventional pressing tool, the investment of the tool is greatly reduced aiming at the development of the spring, and the production efficiency is improved. The production cost is reduced; and according to springs with different inner diameters, pressing and combining of various springs can be achieved through different superposition combinations.

Description

Technical Field

[0001] The utility model belongs to the field of spring manufacturing, and in particular relates to a spring pressing tool. Background Art

[0002] Currently, we already have pressing and merging tooling, but the tooling is fixed very firmly and cannot be disassembled. The height measurement relies on the measurement of the vernier caliper. The existing tooling is not suitable for pressing and merging springs with different inner diameters. Every time a spring is produced, the process personnel design a new pressing and merging tooling according to the shape and structure of the spring, which greatly increases the processing cost and time cost, and wastes a lot of resources on the tooling.

[0003] A Chinese patent with publication number CN 214023267U discloses a spring pressing device, comprising a positioning tool and a die arranged above the positioning tool, the positioning tool being arranged on a fixed frame, the positioning tool being placed with a spring to be pressed, the die being arranged on the frame via a vertical adjustment mechanism, the vertical adjustment mechanism being capable of driving the die to adjust the position in the vertical direction to press the spring, the spring to be pressed being placed on the positioning tool, the die being driven downward by an oil cylinder to press the spring, the patent solves the problems of difficulty in manual operation and low work efficiency when pressing the spring, but the spring pressing device needs to repeatedly drive the die downward in the process of pressing the spring in order to make the spring reach the pressing height, resulting in reduced elasticity of the spring and shortening the service life of the spring. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a spring pressing tool.

[0005] The utility model is achieved through the following technical solutions.

[0006] A spring pressing tool, characterized by comprising a bottom plate;

[0007] cover;

[0008] A hexagonal bolt comprising a screw rod, wherein the upper outer surface of the screw rod is provided with threads, and the screw rod passes through the bottom plate and the cover plate;

[0009] a spacer block, the spacer block being nested on the screw rod;

[0010] A core shaft, the bottom of which is connected to the bottom plate through interference fit, the upper part of which passes through the cover plate, and the spring to be pressed is nested between the bottom and the upper part;

[0011] A nut is nested in the upper portion of the screw and is located on the upper surface of the cover plate.

[0012] The bottom plate includes a top plate and support columns fixed at the left and right ends of the top plate.

[0013] The number of the screws is 5, 4 of which are arranged at the four corners of the bottom plate and the cover plate, and 1 screw is arranged in the middle of the bottom plate and the cover plate.

[0014] The pad is arranged between the bottom plate and the cover plate and is fixed on the screw rod.

[0015] The spring to be pressed is arranged between the bottom plate and the cover plate.

[0016] The number of the core shafts is several.

[0017] The beneficial effects of the present invention are:

[0018] 1. The utility model can achieve the required spring height by one press, thereby extending the service life of the spring. Moreover, springs with different inner diameters can be pressed together simply by replacing the core shaft and the cover plate. Compared with the previous press tooling, the investment in base plates, hexagonal bolts, etc. is reduced. For the development of springs, the investment in tooling is greatly reduced, and the production cost is reduced.

[0019] 2. For springs with different inner diameters, multiple springs can be pressed together through different superposition combinations, instead of adding a full set of pressing and merging tooling each time, reducing the use of tooling. The pressing and merging tooling is also realized, and the tooling combination is optimized, so that the same tooling can be used to press and merge springs with several different inner diameters. At the same time, by designing the pressing and merging pads in advance, the old vernier caliper error measurement method is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the spring compression tooling structure of the utility model;

[0021] Figure 2 This is a front view structural diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0023] In the figure: 1-base plate, 2-hexagonal bolt, 3-cover plate, 4-nut, 5-core shaft, 6-spacer, 7-spring to be pressed, 11-top plate, 12-support column, 21-screw, 22-thread. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments, but the scope of protection claimed is not limited to the description.

[0025] In the description of this utility model, it should be noted that the terms "lower," "bottom," "middle," "top," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0026] Example

[0027] See also Figures 1 to 3

[0028] A spring pressing tool comprises a bottom plate 1, the bottom plate 1 comprising a top plate 11 and support columns 12 fixed to the left and right ends of the top plate, the top plate 11 being provided with a plurality of first screw holes and a plurality of first spindle holes;

[0029] The cover plate 3 is provided with a plurality of second screw holes and a plurality of second mandrel holes;

[0030] The hexagonal bolt 2 includes a screw rod 21 , the upper outer surface of which is provided with a thread 22 , and the screw rod 21 passes through the bottom plate 1 and the cover plate 3 ;

[0031] The pad 6 is nested and fixed on the screw 21 so that the base plate 1 and the screw 21 do not rotate. The pad 6 is set to the required pressing height of the spring to be pressed;

[0032] The bottom of the core shaft 5 is connected to the bottom plate 1 through interference fit, and the upper part passes through the cover plate 3. The space between the bottom and the upper part is used to nest the spring 7 to be pressed. The top of the core shaft 5 is a conical structure, so that the top of the core shaft 5 can be quickly inserted into the inner hole of the spring 7 to be pressed, thereby improving the loading efficiency of the spring 7 to be pressed.

[0033] The nut 4 is nested in the upper portion of the screw rod 21 , located on the upper surface of the cover plate 3 , and fits in with the upper surface of the cover plate 3 .

[0034] There are five screws 21, four of which are located at the four corners of the bottom plate 1 and the cover plate 3, and one screw 21 is located in the middle of the bottom plate 1 and the cover plate 3.

[0035] The compression spring 7 is arranged between the bottom plate 1 and the cover plate 3 .

[0036] There are several core shafts 5 .

[0037] The hexagonal bolt 2 has good stability, and the thread 22 is connected with the nut 4 in a coordinated manner, so that the spring is more stable after being compressed.

[0038] The working process of the present invention is as follows: according to the height requirement of the spring 7 to be pressed after being pressed, the pressing height of the cushion block 6 is determined, and the cushion block 6 is nested and fixed on the screw 21 so that the base plate 1 and the screw 21 will not rotate, and then the spring 7 to be pressed is nested on the core shaft 5, and finally the cover plate 3 is installed, and the cover plate 3 is pressed to the height of the pressing cushion block at one time through the pressing head of the press machine, and the four nuts are quickly tightened. At this time, the spring is pressed tightly, and finally the spring reaches the required pressing height.

[0039] The beneficial effects of the utility model are as follows: 1. By replacing the core shaft 5 and the cover plate 3, springs with different inner diameters can be pressed together, which reduces the investment in the base plate 1, the screw 21, etc. compared with the previous pressing and combining tooling. For the development of springs, the investment in tooling is greatly reduced, and the production cost is reduced;

[0040] 2. For springs with different inner diameters, multiple springs can be pressed together through different superposition combinations, instead of adding a full set of pressing and merging tooling each time, reducing the use of tooling. The pressing and merging tooling is also realized, and the tooling combination is optimized, so that the same tooling can be used to press and merge springs with several different inner diameters. At the same time, by designing the pressing and merging pads in advance, the old vernier caliper error measurement method is replaced.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spring pressing tool, characterized in that: comprising a base plate (1); Cover plate (3); A hexagonal bolt (2) comprising a screw rod (21), the upper outer surface of the screw rod (21) being provided with a thread (22), and the screw rod (21) passing through the base plate (1) and the cover plate (3); A spacer (6), wherein the spacer (6) is nested on the screw (21); A core shaft (5), the bottom of the core shaft (5) is connected to the bottom plate (1) by interference fit, the upper part passes through the cover plate (3), and a spring (7) to be pressed is nested between the bottom and the upper part; A nut (4) is nested in the upper portion of the screw rod (21) and is located on the upper surface of the cover plate (3).

2. A spring pressing tool as claimed in claim 1, characterized in that: The bottom plate (1) comprises a top plate (11) and support columns (12) fixed to the left and right ends of the top plate.

3. The spring pressing tool according to claim 1, characterized in that: The number of the screw rods (21) is five, four of which are arranged at the four corners of the bottom plate (1) and the cover plate (3), and one of which is arranged at the middle of the bottom plate (1) and the cover plate (3).

4. The spring pressing tool according to claim 1, characterized in that: The cushion block (6) is arranged between the bottom plate (1) and the cover plate (3), and is fixed on the screw rod (21).

5. The spring pressing tool according to claim 1, characterized in that: The compression spring (7) is arranged between the bottom plate (1) and the cover plate (3).

6. The spring pressing tool according to claim 1, characterized in that: The number of the core shafts (5) is several.

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